projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 35c08157 | 1 | /* NDS32-specific support for 32-bit ELF. |
| 2571583a | 2 | Copyright (C) 2012-2017 Free Software Foundation, Inc. |
| 35c08157 KLC |
3 | Contributed by Andes Technology Corporation. |
| 4 | ||
| 5 | This file is part of BFD, the Binary File Descriptor library. | |
| 6 | ||
| 7 | This program is free software; you can redistribute it and/or modify | |
| 8 | it under the terms of the GNU General Public License as published by | |
| 9 | the Free Software Foundation; either version 3 of the License, or | |
| 10 | (at your option) any later version. | |
| 11 | ||
| 12 | This program is distributed in the hope that it will be useful, | |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | GNU General Public License for more details. | |
| 16 | ||
| 17 | You should have received a copy of the GNU General Public License | |
| 18 | along with this program; if not, write to the Free Software | |
| 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA | |
| 1c8f6a4d | 20 | 02110-1301, USA. */ |
| 35c08157 KLC |
21 | |
| 22 | ||
| 23 | #include "sysdep.h" | |
| 24 | #include "bfd.h" | |
| 25 | #include "bfd_stdint.h" | |
| 26 | #include "bfdlink.h" | |
| 27 | #include "libbfd.h" | |
| 28 | #include "elf-bfd.h" | |
| 29 | #include "libiberty.h" | |
| 30 | #include "bfd_stdint.h" | |
| 31 | #include "elf/nds32.h" | |
| 32 | #include "opcode/nds32.h" | |
| 33 | #include "elf32-nds32.h" | |
| 34 | #include "opcode/cgen.h" | |
| 35 | #include "../opcodes/nds32-opc.h" | |
| 36 | ||
| 37 | /* Relocation HOWTO functions. */ | |
| 38 | static bfd_reloc_status_type nds32_elf_ignore_reloc | |
| 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
| 40 | static bfd_reloc_status_type nds32_elf_9_pcrel_reloc | |
| 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
| 42 | static bfd_reloc_status_type nds32_elf_hi20_reloc | |
| 43 | (bfd *, arelent *, asymbol *, void *, | |
| 44 | asection *, bfd *, char **); | |
| 45 | static bfd_reloc_status_type nds32_elf_lo12_reloc | |
| 46 | (bfd *, arelent *, asymbol *, void *, | |
| 47 | asection *, bfd *, char **); | |
| 48 | static bfd_reloc_status_type nds32_elf_generic_reloc | |
| 49 | (bfd *, arelent *, asymbol *, void *, | |
| 50 | asection *, bfd *, char **); | |
| 51 | static bfd_reloc_status_type nds32_elf_sda15_reloc | |
| 52 | (bfd *, arelent *, asymbol *, void *, | |
| 53 | asection *, bfd *, char **); | |
| 54 | ||
| 55 | /* Helper functions for HOWTO. */ | |
| 56 | static bfd_reloc_status_type nds32_elf_do_9_pcrel_reloc | |
| 57 | (bfd *, reloc_howto_type *, asection *, bfd_byte *, bfd_vma, | |
| 58 | asection *, bfd_vma, bfd_vma); | |
| 35c08157 KLC |
59 | |
| 60 | /* Nds32 helper functions. */ | |
| 35c08157 | 61 | static bfd_vma calculate_memory_address |
| 0c4bd9d9 KLC |
62 | (bfd *, Elf_Internal_Rela *, Elf_Internal_Sym *, Elf_Internal_Shdr *); |
| 63 | static int nds32_get_section_contents (bfd *, asection *, | |
| 64 | bfd_byte **, bfd_boolean); | |
| 35c08157 | 65 | static bfd_boolean nds32_elf_ex9_build_hash_table |
| 0c4bd9d9 | 66 | (bfd *, asection *, struct bfd_link_info *); |
| 1c8f6a4d KLC |
67 | static bfd_boolean nds32_elf_ex9_itb_base (struct bfd_link_info *); |
| 68 | static void nds32_elf_ex9_import_table (struct bfd_link_info *); | |
| 69 | static void nds32_elf_ex9_finish (struct bfd_link_info *); | |
| 70 | static void nds32_elf_ex9_reloc_jmp (struct bfd_link_info *); | |
| 35c08157 | 71 | static void nds32_elf_get_insn_with_reg |
| 1c8f6a4d | 72 | (Elf_Internal_Rela *, uint32_t, uint32_t *); |
| 35c08157 KLC |
73 | static int nds32_get_local_syms (bfd *, asection *ATTRIBUTE_UNUSED, |
| 74 | Elf_Internal_Sym **); | |
| 75 | static bfd_boolean nds32_elf_ex9_replace_instruction | |
| 76 | (struct bfd_link_info *, bfd *, asection *); | |
| 77 | static bfd_boolean nds32_elf_ifc_calc (struct bfd_link_info *, bfd *, | |
| 78 | asection *); | |
| 1c8f6a4d | 79 | static bfd_boolean nds32_elf_ifc_finish (struct bfd_link_info *); |
| 35c08157 | 80 | static bfd_boolean nds32_elf_ifc_replace (struct bfd_link_info *); |
| 1c8f6a4d | 81 | static bfd_boolean nds32_elf_ifc_reloc (void); |
| 35c08157 KLC |
82 | static bfd_boolean nds32_relax_fp_as_gp |
| 83 | (struct bfd_link_info *link_info, bfd *abfd, asection *sec, | |
| 84 | Elf_Internal_Rela *internal_relocs, Elf_Internal_Rela *irelend, | |
| 85 | Elf_Internal_Sym *isymbuf); | |
| 86 | static bfd_boolean nds32_fag_remove_unused_fpbase | |
| 87 | (bfd *abfd, asection *sec, Elf_Internal_Rela *internal_relocs, | |
| 88 | Elf_Internal_Rela *irelend); | |
| 89 | ||
| 90 | enum | |
| 91 | { | |
| 92 | MACH_V1 = bfd_mach_n1h, | |
| 93 | MACH_V2 = bfd_mach_n1h_v2, | |
| 94 | MACH_V3 = bfd_mach_n1h_v3, | |
| 95 | MACH_V3M = bfd_mach_n1h_v3m | |
| 96 | }; | |
| 97 | ||
| 98 | #define MIN(a, b) ((a) > (b) ? (b) : (a)) | |
| 99 | #define MAX(a, b) ((a) > (b) ? (a) : (b)) | |
| 100 | ||
| 101 | /* The name of the dynamic interpreter. This is put in the .interp | |
| 102 | section. */ | |
| 103 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
| 104 | ||
| 105 | /* The nop opcode we use. */ | |
| 106 | #define NDS32_NOP32 0x40000009 | |
| 107 | #define NDS32_NOP16 0x9200 | |
| 108 | ||
| 109 | /* The size in bytes of an entry in the procedure linkage table. */ | |
| 110 | #define PLT_ENTRY_SIZE 24 | |
| 111 | #define PLT_HEADER_SIZE 24 | |
| 112 | ||
| 113 | /* The first entry in a procedure linkage table are reserved, | |
| 114 | and the initial contents are unimportant (we zero them out). | |
| 115 | Subsequent entries look like this. */ | |
| 116 | #define PLT0_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(.got+4) */ | |
| 117 | #define PLT0_ENTRY_WORD1 0x58f78000 /* ori r15, r25, LO12(.got+4) */ | |
| 118 | #define PLT0_ENTRY_WORD2 0x05178000 /* lwi r17, [r15+0] */ | |
| 119 | #define PLT0_ENTRY_WORD3 0x04f78001 /* lwi r15, [r15+4] */ | |
| 120 | #define PLT0_ENTRY_WORD4 0x4a003c00 /* jr r15 */ | |
| 121 | ||
| 122 | /* $ta is change to $r15 (from $r25). */ | |
| 123 | #define PLT0_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[1]@GOT) */ | |
| 124 | #define PLT0_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[1]@GOT) */ | |
| 125 | #define PLT0_PIC_ENTRY_WORD2 0x40f7f400 /* add r15, gp, r15 */ | |
| 126 | #define PLT0_PIC_ENTRY_WORD3 0x05178000 /* lwi r17, [r15+0] */ | |
| 127 | #define PLT0_PIC_ENTRY_WORD4 0x04f78001 /* lwi r15, [r15+4] */ | |
| 128 | #define PLT0_PIC_ENTRY_WORD5 0x4a003c00 /* jr r15 */ | |
| 129 | ||
| 130 | #define PLT_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(&got[n+3]) */ | |
| 131 | #define PLT_ENTRY_WORD1 0x04f78000 /* lwi r15, r15, LO12(&got[n+3]) */ | |
| 132 | #define PLT_ENTRY_WORD2 0x4a003c00 /* jr r15 */ | |
| 133 | #define PLT_ENTRY_WORD3 0x45000000 /* movi r16, sizeof(RELA) * n */ | |
| 134 | #define PLT_ENTRY_WORD4 0x48000000 /* j .plt0. */ | |
| 135 | ||
| 136 | #define PLT_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[n+3]@GOT) */ | |
| 137 | #define PLT_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[n+3]@GOT) */ | |
| 138 | #define PLT_PIC_ENTRY_WORD2 0x38febc02 /* lw r15, [gp+r15] */ | |
| 139 | #define PLT_PIC_ENTRY_WORD3 0x4a003c00 /* jr r15 */ | |
| 140 | #define PLT_PIC_ENTRY_WORD4 0x45000000 /* movi r16, sizeof(RELA) * n */ | |
| 141 | #define PLT_PIC_ENTRY_WORD5 0x48000000 /* j .plt0 */ | |
| 142 | ||
| 1c8f6a4d KLC |
143 | /* These are macros used to get the relocation accurate value. */ |
| 144 | #define ACCURATE_8BIT_S1 (0x100) | |
| 145 | #define ACCURATE_U9BIT_S1 (0x400) | |
| 146 | #define ACCURATE_12BIT_S1 (0x2000) | |
| 147 | #define ACCURATE_14BIT_S1 (0x4000) | |
| 148 | #define ACCURATE_19BIT (0x40000) | |
| 149 | ||
| 150 | /* These are macros used to get the relocation conservative value. */ | |
| 151 | #define CONSERVATIVE_8BIT_S1 (0x100 - 4) | |
| 152 | #define CONSERVATIVE_14BIT_S1 (0x4000 - 4) | |
| 153 | #define CONSERVATIVE_16BIT_S1 (0x10000 - 4) | |
| 154 | #define CONSERVATIVE_24BIT_S1 (0x1000000 - 4) | |
| 155 | /* These must be more conservative because the address may be in | |
| 156 | different segment. */ | |
| 157 | #define CONSERVATIVE_15BIT (0x4000 - 0x1000) | |
| 158 | #define CONSERVATIVE_15BIT_S1 (0x8000 - 0x1000) | |
| 159 | #define CONSERVATIVE_15BIT_S2 (0x10000 - 0x1000) | |
| 160 | #define CONSERVATIVE_19BIT (0x40000 - 0x1000) | |
| 161 | #define CONSERVATIVE_20BIT (0x80000 - 0x1000) | |
| 162 | ||
| 35c08157 KLC |
163 | /* Size of small data/bss sections, used to calculate SDA_BASE. */ |
| 164 | static long got_size = 0; | |
| 165 | static int is_SDA_BASE_set = 0; | |
| 166 | static int is_ITB_BASE_set = 0; | |
| 167 | ||
| 35c08157 KLC |
168 | /* Convert ELF-VER in eflags to string for debugging purpose. */ |
| 169 | static const char *const nds32_elfver_strtab[] = | |
| 170 | { | |
| 171 | "ELF-1.2", | |
| 172 | "ELF-1.3", | |
| 173 | "ELF-1.4", | |
| 174 | }; | |
| 175 | ||
| 176 | /* The nds32 linker needs to keep track of the number of relocs that it | |
| 177 | decides to copy in check_relocs for each symbol. This is so that | |
| 178 | it can discard PC relative relocs if it doesn't need them when | |
| 179 | linking with -Bsymbolic. We store the information in a field | |
| 180 | extending the regular ELF linker hash table. */ | |
| 181 | ||
| 182 | /* This structure keeps track of the number of PC relative relocs we | |
| 183 | have copied for a given symbol. */ | |
| 184 | ||
| 185 | struct elf_nds32_pcrel_relocs_copied | |
| 186 | { | |
| 187 | /* Next section. */ | |
| 188 | struct elf_nds32_pcrel_relocs_copied *next; | |
| 189 | /* A section in dynobj. */ | |
| 190 | asection *section; | |
| 191 | /* Number of relocs copied in this section. */ | |
| 192 | bfd_size_type count; | |
| 193 | }; | |
| 194 | ||
| 195 | /* The sh linker needs to keep track of the number of relocs that it | |
| 196 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
| 197 | This is so that it can later discard them if they are found to be | |
| 198 | unnecessary. We store the information in a field extending the | |
| 199 | regular ELF linker hash table. */ | |
| 200 | ||
| 201 | struct elf_nds32_dyn_relocs | |
| 202 | { | |
| 203 | struct elf_nds32_dyn_relocs *next; | |
| 204 | ||
| 205 | /* The input section of the reloc. */ | |
| 206 | asection *sec; | |
| 207 | ||
| 208 | /* Total number of relocs copied for the input section. */ | |
| 209 | bfd_size_type count; | |
| 210 | ||
| 211 | /* Number of pc-relative relocs copied for the input section. */ | |
| 212 | bfd_size_type pc_count; | |
| 213 | }; | |
| 214 | ||
| 215 | /* Nds32 ELF linker hash entry. */ | |
| 216 | ||
| 217 | struct elf_nds32_link_hash_entry | |
| 218 | { | |
| 219 | struct elf_link_hash_entry root; | |
| 220 | ||
| 221 | /* Track dynamic relocs copied for this symbol. */ | |
| 222 | struct elf_nds32_dyn_relocs *dyn_relocs; | |
| 1c8f6a4d KLC |
223 | |
| 224 | /* For checking relocation type. */ | |
| 225 | #define GOT_UNKNOWN 0 | |
| 226 | #define GOT_NORMAL 1 | |
| 227 | #define GOT_TLS_IE 2 | |
| 228 | unsigned int tls_type; | |
| 35c08157 KLC |
229 | }; |
| 230 | ||
| 231 | /* Get the nds32 ELF linker hash table from a link_info structure. */ | |
| 232 | ||
| 233 | #define FP_BASE_NAME "_FP_BASE_" | |
| 234 | static int check_start_export_sym = 0; | |
| 235 | static size_t ex9_relax_size = 0; /* Save ex9 predicted reducing size. */ | |
| 236 | ||
| 1c8f6a4d KLC |
237 | /* The offset for executable tls relaxation. */ |
| 238 | #define TP_OFFSET 0x0 | |
| 239 | ||
| 240 | struct elf_nds32_obj_tdata | |
| 241 | { | |
| 242 | struct elf_obj_tdata root; | |
| 243 | ||
| 244 | /* tls_type for each local got entry. */ | |
| 245 | char *local_got_tls_type; | |
| 246 | }; | |
| 247 | ||
| 248 | #define elf_nds32_tdata(bfd) \ | |
| 249 | ((struct elf_nds32_obj_tdata *) (bfd)->tdata.any) | |
| 250 | ||
| 251 | #define elf32_nds32_local_got_tls_type(bfd) \ | |
| 252 | (elf_nds32_tdata (bfd)->local_got_tls_type) | |
| 253 | ||
| 254 | #define elf32_nds32_hash_entry(ent) ((struct elf_nds32_link_hash_entry *)(ent)) | |
| 255 | ||
| 256 | static bfd_boolean | |
| 257 | nds32_elf_mkobject (bfd *abfd) | |
| 258 | { | |
| 259 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_nds32_obj_tdata), | |
| 260 | NDS32_ELF_DATA); | |
| 261 | } | |
| 262 | ||
| 35c08157 KLC |
263 | /* Relocations used for relocation. */ |
| 264 | static reloc_howto_type nds32_elf_howto_table[] = | |
| 265 | { | |
| 266 | /* This reloc does nothing. */ | |
| 267 | HOWTO (R_NDS32_NONE, /* type */ | |
| 268 | 0, /* rightshift */ | |
| 6346d5ca AM |
269 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 270 | 0, /* bitsize */ | |
| 35c08157 KLC |
271 | FALSE, /* pc_relative */ |
| 272 | 0, /* bitpos */ | |
| 6346d5ca | 273 | complain_overflow_dont, /* complain_on_overflow */ |
| 35c08157 KLC |
274 | bfd_elf_generic_reloc, /* special_function */ |
| 275 | "R_NDS32_NONE", /* name */ | |
| 276 | FALSE, /* partial_inplace */ | |
| 277 | 0, /* src_mask */ | |
| 278 | 0, /* dst_mask */ | |
| 279 | FALSE), /* pcrel_offset */ | |
| 280 | ||
| 281 | /* A 16 bit absolute relocation. */ | |
| 282 | HOWTO (R_NDS32_16, /* type */ | |
| 283 | 0, /* rightshift */ | |
| 284 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 285 | 16, /* bitsize */ | |
| 286 | FALSE, /* pc_relative */ | |
| 287 | 0, /* bitpos */ | |
| 288 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 289 | nds32_elf_generic_reloc, /* special_function */ | |
| 290 | "R_NDS32_16", /* name */ | |
| 291 | FALSE, /* partial_inplace */ | |
| 292 | 0xffff, /* src_mask */ | |
| 293 | 0xffff, /* dst_mask */ | |
| 294 | FALSE), /* pcrel_offset */ | |
| 295 | ||
| 296 | /* A 32 bit absolute relocation. */ | |
| 297 | HOWTO (R_NDS32_32, /* type */ | |
| 298 | 0, /* rightshift */ | |
| 299 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 300 | 32, /* bitsize */ | |
| 301 | FALSE, /* pc_relative */ | |
| 302 | 0, /* bitpos */ | |
| 303 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 304 | nds32_elf_generic_reloc, /* special_function */ | |
| 305 | "R_NDS32_32", /* name */ | |
| 306 | FALSE, /* partial_inplace */ | |
| 307 | 0xffffffff, /* src_mask */ | |
| 308 | 0xffffffff, /* dst_mask */ | |
| 309 | FALSE), /* pcrel_offset */ | |
| 310 | ||
| 311 | /* A 20 bit address. */ | |
| 312 | HOWTO (R_NDS32_20, /* type */ | |
| 313 | 0, /* rightshift */ | |
| 314 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 315 | 20, /* bitsize */ | |
| 316 | FALSE, /* pc_relative */ | |
| 317 | 0, /* bitpos */ | |
| 318 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 319 | nds32_elf_generic_reloc, /* special_function */ | |
| 320 | "R_NDS32_20", /* name */ | |
| 321 | FALSE, /* partial_inplace */ | |
| 322 | 0xfffff, /* src_mask */ | |
| 323 | 0xfffff, /* dst_mask */ | |
| 324 | FALSE), /* pcrel_offset */ | |
| 325 | ||
| 326 | /* An PC Relative 9-bit relocation, shifted by 2. | |
| 327 | This reloc is complicated because relocations are relative to pc & -4. | |
| 328 | i.e. branches in the right insn slot use the address of the left insn | |
| 329 | slot for pc. */ | |
| 330 | /* ??? It's not clear whether this should have partial_inplace set or not. | |
| 331 | Branch relaxing in the assembler can store the addend in the insn, | |
| 332 | and if bfd_install_relocation gets called the addend may get added | |
| 333 | again. */ | |
| 334 | HOWTO (R_NDS32_9_PCREL, /* type */ | |
| 335 | 1, /* rightshift */ | |
| 336 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 337 | 8, /* bitsize */ | |
| 338 | TRUE, /* pc_relative */ | |
| 339 | 0, /* bitpos */ | |
| 340 | complain_overflow_signed, /* complain_on_overflow */ | |
| 341 | nds32_elf_9_pcrel_reloc, /* special_function */ | |
| 342 | "R_NDS32_9_PCREL", /* name */ | |
| 343 | FALSE, /* partial_inplace */ | |
| 344 | 0xff, /* src_mask */ | |
| 345 | 0xff, /* dst_mask */ | |
| 346 | TRUE), /* pcrel_offset */ | |
| 347 | ||
| 348 | /* A relative 15 bit relocation, right shifted by 1. */ | |
| 349 | HOWTO (R_NDS32_15_PCREL, /* type */ | |
| 350 | 1, /* rightshift */ | |
| 351 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 352 | 14, /* bitsize */ | |
| 353 | TRUE, /* pc_relative */ | |
| 354 | 0, /* bitpos */ | |
| 355 | complain_overflow_signed, /* complain_on_overflow */ | |
| 356 | bfd_elf_generic_reloc, /* special_function */ | |
| 357 | "R_NDS32_15_PCREL", /* name */ | |
| 358 | FALSE, /* partial_inplace */ | |
| 359 | 0x3fff, /* src_mask */ | |
| 360 | 0x3fff, /* dst_mask */ | |
| 361 | TRUE), /* pcrel_offset */ | |
| 362 | ||
| 363 | /* A relative 17 bit relocation, right shifted by 1. */ | |
| 364 | HOWTO (R_NDS32_17_PCREL, /* type */ | |
| 365 | 1, /* rightshift */ | |
| 366 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 367 | 16, /* bitsize */ | |
| 368 | TRUE, /* pc_relative */ | |
| 369 | 0, /* bitpos */ | |
| 370 | complain_overflow_signed, /* complain_on_overflow */ | |
| 371 | bfd_elf_generic_reloc, /* special_function */ | |
| 372 | "R_NDS32_17_PCREL", /* name */ | |
| 373 | FALSE, /* partial_inplace */ | |
| 374 | 0xffff, /* src_mask */ | |
| 375 | 0xffff, /* dst_mask */ | |
| 376 | TRUE), /* pcrel_offset */ | |
| 377 | ||
| 378 | /* A relative 25 bit relocation, right shifted by 1. */ | |
| 379 | /* ??? It's not clear whether this should have partial_inplace set or not. | |
| 380 | Branch relaxing in the assembler can store the addend in the insn, | |
| 381 | and if bfd_install_relocation gets called the addend may get added | |
| 382 | again. */ | |
| 383 | HOWTO (R_NDS32_25_PCREL, /* type */ | |
| 384 | 1, /* rightshift */ | |
| 385 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 386 | 24, /* bitsize */ | |
| 387 | TRUE, /* pc_relative */ | |
| 388 | 0, /* bitpos */ | |
| 389 | complain_overflow_signed, /* complain_on_overflow */ | |
| 390 | bfd_elf_generic_reloc, /* special_function */ | |
| 391 | "R_NDS32_25_PCREL", /* name */ | |
| 392 | FALSE, /* partial_inplace */ | |
| 393 | 0xffffff, /* src_mask */ | |
| 394 | 0xffffff, /* dst_mask */ | |
| 395 | TRUE), /* pcrel_offset */ | |
| 396 | ||
| 397 | /* High 20 bits of address when lower 12 is or'd in. */ | |
| 398 | HOWTO (R_NDS32_HI20, /* type */ | |
| 399 | 12, /* rightshift */ | |
| 400 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 401 | 20, /* bitsize */ | |
| 402 | FALSE, /* pc_relative */ | |
| 403 | 0, /* bitpos */ | |
| 404 | complain_overflow_dont,/* complain_on_overflow */ | |
| 405 | nds32_elf_hi20_reloc, /* special_function */ | |
| 406 | "R_NDS32_HI20", /* name */ | |
| 407 | FALSE, /* partial_inplace */ | |
| 408 | 0x000fffff, /* src_mask */ | |
| 409 | 0x000fffff, /* dst_mask */ | |
| 410 | FALSE), /* pcrel_offset */ | |
| 411 | ||
| 412 | /* Lower 12 bits of address. */ | |
| 413 | HOWTO (R_NDS32_LO12S3, /* type */ | |
| 414 | 3, /* rightshift */ | |
| 415 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 416 | 9, /* bitsize */ | |
| 417 | FALSE, /* pc_relative */ | |
| 418 | 0, /* bitpos */ | |
| 419 | complain_overflow_dont,/* complain_on_overflow */ | |
| 420 | nds32_elf_lo12_reloc, /* special_function */ | |
| 421 | "R_NDS32_LO12S3", /* name */ | |
| 422 | FALSE, /* partial_inplace */ | |
| 423 | 0x000001ff, /* src_mask */ | |
| 424 | 0x000001ff, /* dst_mask */ | |
| 425 | FALSE), /* pcrel_offset */ | |
| 426 | ||
| 427 | /* Lower 12 bits of address. */ | |
| 428 | HOWTO (R_NDS32_LO12S2, /* type */ | |
| 429 | 2, /* rightshift */ | |
| 430 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 431 | 10, /* bitsize */ | |
| 432 | FALSE, /* pc_relative */ | |
| 433 | 0, /* bitpos */ | |
| 434 | complain_overflow_dont,/* complain_on_overflow */ | |
| 435 | nds32_elf_lo12_reloc, /* special_function */ | |
| 436 | "R_NDS32_LO12S2", /* name */ | |
| 437 | FALSE, /* partial_inplace */ | |
| 438 | 0x000003ff, /* src_mask */ | |
| 439 | 0x000003ff, /* dst_mask */ | |
| 440 | FALSE), /* pcrel_offset */ | |
| 441 | ||
| 442 | /* Lower 12 bits of address. */ | |
| 443 | HOWTO (R_NDS32_LO12S1, /* type */ | |
| 444 | 1, /* rightshift */ | |
| 445 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 446 | 11, /* bitsize */ | |
| 447 | FALSE, /* pc_relative */ | |
| 448 | 0, /* bitpos */ | |
| 449 | complain_overflow_dont,/* complain_on_overflow */ | |
| 450 | nds32_elf_lo12_reloc, /* special_function */ | |
| 451 | "R_NDS32_LO12S1", /* name */ | |
| 452 | FALSE, /* partial_inplace */ | |
| 453 | 0x000007ff, /* src_mask */ | |
| 454 | 0x000007ff, /* dst_mask */ | |
| 455 | FALSE), /* pcrel_offset */ | |
| 456 | ||
| 457 | /* Lower 12 bits of address. */ | |
| 458 | HOWTO (R_NDS32_LO12S0, /* type */ | |
| 459 | 0, /* rightshift */ | |
| 460 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 461 | 12, /* bitsize */ | |
| 462 | FALSE, /* pc_relative */ | |
| 463 | 0, /* bitpos */ | |
| 464 | complain_overflow_dont,/* complain_on_overflow */ | |
| 465 | nds32_elf_lo12_reloc, /* special_function */ | |
| 466 | "R_NDS32_LO12S0", /* name */ | |
| 467 | FALSE, /* partial_inplace */ | |
| 468 | 0x00000fff, /* src_mask */ | |
| 469 | 0x00000fff, /* dst_mask */ | |
| 470 | FALSE), /* pcrel_offset */ | |
| 471 | ||
| 472 | /* Small data area 15 bits offset. */ | |
| 473 | HOWTO (R_NDS32_SDA15S3, /* type */ | |
| 474 | 3, /* rightshift */ | |
| 475 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 476 | 15, /* bitsize */ | |
| 477 | FALSE, /* pc_relative */ | |
| 478 | 0, /* bitpos */ | |
| 479 | complain_overflow_signed, /* complain_on_overflow */ | |
| 480 | nds32_elf_sda15_reloc, /* special_function */ | |
| 481 | "R_NDS32_SDA15S3", /* name */ | |
| 482 | FALSE, /* partial_inplace */ | |
| 483 | 0x00007fff, /* src_mask */ | |
| 484 | 0x00007fff, /* dst_mask */ | |
| 485 | FALSE), /* pcrel_offset */ | |
| 486 | ||
| 487 | /* Small data area 15 bits offset. */ | |
| 488 | HOWTO (R_NDS32_SDA15S2, /* type */ | |
| 489 | 2, /* rightshift */ | |
| 490 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 491 | 15, /* bitsize */ | |
| 492 | FALSE, /* pc_relative */ | |
| 493 | 0, /* bitpos */ | |
| 494 | complain_overflow_signed, /* complain_on_overflow */ | |
| 495 | nds32_elf_sda15_reloc, /* special_function */ | |
| 496 | "R_NDS32_SDA15S2", /* name */ | |
| 497 | FALSE, /* partial_inplace */ | |
| 498 | 0x00007fff, /* src_mask */ | |
| 499 | 0x00007fff, /* dst_mask */ | |
| 500 | FALSE), /* pcrel_offset */ | |
| 501 | ||
| 502 | /* Small data area 15 bits offset. */ | |
| 503 | HOWTO (R_NDS32_SDA15S1, /* type */ | |
| 504 | 1, /* rightshift */ | |
| 505 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 506 | 15, /* bitsize */ | |
| 507 | FALSE, /* pc_relative */ | |
| 508 | 0, /* bitpos */ | |
| 509 | complain_overflow_signed, /* complain_on_overflow */ | |
| 510 | nds32_elf_sda15_reloc, /* special_function */ | |
| 511 | "R_NDS32_SDA15S1", /* name */ | |
| 512 | FALSE, /* partial_inplace */ | |
| 513 | 0x00007fff, /* src_mask */ | |
| 514 | 0x00007fff, /* dst_mask */ | |
| 515 | FALSE), /* pcrel_offset */ | |
| 516 | ||
| 517 | /* Small data area 15 bits offset. */ | |
| 518 | HOWTO (R_NDS32_SDA15S0, /* type */ | |
| 519 | 0, /* rightshift */ | |
| 520 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 521 | 15, /* bitsize */ | |
| 522 | FALSE, /* pc_relative */ | |
| 523 | 0, /* bitpos */ | |
| 524 | complain_overflow_signed, /* complain_on_overflow */ | |
| 525 | nds32_elf_sda15_reloc, /* special_function */ | |
| 526 | "R_NDS32_SDA15S0", /* name */ | |
| 527 | FALSE, /* partial_inplace */ | |
| 528 | 0x00007fff, /* src_mask */ | |
| 529 | 0x00007fff, /* dst_mask */ | |
| 530 | FALSE), /* pcrel_offset */ | |
| 531 | ||
| 532 | /* GNU extension to record C++ vtable hierarchy */ | |
| 533 | HOWTO (R_NDS32_GNU_VTINHERIT, /* type */ | |
| 534 | 0, /* rightshift */ | |
| 535 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 536 | 0, /* bitsize */ | |
| 537 | FALSE, /* pc_relative */ | |
| 538 | 0, /* bitpos */ | |
| 539 | complain_overflow_dont,/* complain_on_overflow */ | |
| 540 | NULL, /* special_function */ | |
| 541 | "R_NDS32_GNU_VTINHERIT", /* name */ | |
| 542 | FALSE, /* partial_inplace */ | |
| 543 | 0, /* src_mask */ | |
| 544 | 0, /* dst_mask */ | |
| 545 | FALSE), /* pcrel_offset */ | |
| 546 | ||
| 547 | /* GNU extension to record C++ vtable member usage */ | |
| 548 | HOWTO (R_NDS32_GNU_VTENTRY, /* type */ | |
| 549 | 0, /* rightshift */ | |
| 550 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 551 | 0, /* bitsize */ | |
| 552 | FALSE, /* pc_relative */ | |
| 553 | 0, /* bitpos */ | |
| 554 | complain_overflow_dont,/* complain_on_overflow */ | |
| 555 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
| 556 | "R_NDS32_GNU_VTENTRY", /* name */ | |
| 557 | FALSE, /* partial_inplace */ | |
| 558 | 0, /* src_mask */ | |
| 559 | 0, /* dst_mask */ | |
| 560 | FALSE), /* pcrel_offset */ | |
| 561 | ||
| 562 | /* A 16 bit absolute relocation. */ | |
| 563 | HOWTO (R_NDS32_16_RELA, /* type */ | |
| 564 | 0, /* rightshift */ | |
| 565 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 566 | 16, /* bitsize */ | |
| 567 | FALSE, /* pc_relative */ | |
| 568 | 0, /* bitpos */ | |
| 569 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 570 | bfd_elf_generic_reloc, /* special_function */ | |
| 571 | "R_NDS32_16_RELA", /* name */ | |
| 572 | FALSE, /* partial_inplace */ | |
| 573 | 0xffff, /* src_mask */ | |
| 574 | 0xffff, /* dst_mask */ | |
| 575 | FALSE), /* pcrel_offset */ | |
| 576 | ||
| 577 | /* A 32 bit absolute relocation. */ | |
| 578 | HOWTO (R_NDS32_32_RELA, /* type */ | |
| 579 | 0, /* rightshift */ | |
| 580 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 581 | 32, /* bitsize */ | |
| 582 | FALSE, /* pc_relative */ | |
| 583 | 0, /* bitpos */ | |
| 584 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 585 | bfd_elf_generic_reloc, /* special_function */ | |
| 586 | "R_NDS32_32_RELA", /* name */ | |
| 587 | FALSE, /* partial_inplace */ | |
| 588 | 0xffffffff, /* src_mask */ | |
| 589 | 0xffffffff, /* dst_mask */ | |
| 590 | FALSE), /* pcrel_offset */ | |
| 591 | ||
| 592 | /* A 20 bit address. */ | |
| 593 | HOWTO (R_NDS32_20_RELA, /* type */ | |
| 594 | 0, /* rightshift */ | |
| 595 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 596 | 20, /* bitsize */ | |
| 597 | FALSE, /* pc_relative */ | |
| 598 | 0, /* bitpos */ | |
| 599 | complain_overflow_signed, /* complain_on_overflow */ | |
| 600 | bfd_elf_generic_reloc, /* special_function */ | |
| 601 | "R_NDS32_20_RELA", /* name */ | |
| 602 | FALSE, /* partial_inplace */ | |
| 603 | 0xfffff, /* src_mask */ | |
| 604 | 0xfffff, /* dst_mask */ | |
| 605 | FALSE), /* pcrel_offset */ | |
| 606 | ||
| 607 | HOWTO (R_NDS32_9_PCREL_RELA, /* type */ | |
| 608 | 1, /* rightshift */ | |
| 609 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 610 | 8, /* bitsize */ | |
| 611 | TRUE, /* pc_relative */ | |
| 612 | 0, /* bitpos */ | |
| 613 | complain_overflow_signed, /* complain_on_overflow */ | |
| 614 | bfd_elf_generic_reloc, /* special_function */ | |
| 615 | "R_NDS32_9_PCREL_RELA",/* name */ | |
| 616 | FALSE, /* partial_inplace */ | |
| 617 | 0xff, /* src_mask */ | |
| 618 | 0xff, /* dst_mask */ | |
| 619 | TRUE), /* pcrel_offset */ | |
| 620 | ||
| 621 | /* A relative 15 bit relocation, right shifted by 1. */ | |
| 622 | HOWTO (R_NDS32_15_PCREL_RELA, /* type */ | |
| 623 | 1, /* rightshift */ | |
| 624 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 625 | 14, /* bitsize */ | |
| 626 | TRUE, /* pc_relative */ | |
| 627 | 0, /* bitpos */ | |
| 628 | complain_overflow_signed, /* complain_on_overflow */ | |
| 629 | bfd_elf_generic_reloc, /* special_function */ | |
| 630 | "R_NDS32_15_PCREL_RELA", /* name */ | |
| 631 | FALSE, /* partial_inplace */ | |
| 632 | 0x3fff, /* src_mask */ | |
| 633 | 0x3fff, /* dst_mask */ | |
| 634 | TRUE), /* pcrel_offset */ | |
| 635 | ||
| 636 | /* A relative 17 bit relocation, right shifted by 1. */ | |
| 637 | HOWTO (R_NDS32_17_PCREL_RELA, /* type */ | |
| 638 | 1, /* rightshift */ | |
| 639 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 640 | 16, /* bitsize */ | |
| 641 | TRUE, /* pc_relative */ | |
| 642 | 0, /* bitpos */ | |
| 643 | complain_overflow_signed, /* complain_on_overflow */ | |
| 644 | bfd_elf_generic_reloc, /* special_function */ | |
| 645 | "R_NDS32_17_PCREL_RELA", /* name */ | |
| 646 | FALSE, /* partial_inplace */ | |
| 647 | 0xffff, /* src_mask */ | |
| 648 | 0xffff, /* dst_mask */ | |
| 649 | TRUE), /* pcrel_offset */ | |
| 650 | ||
| 651 | /* A relative 25 bit relocation, right shifted by 2. */ | |
| 652 | HOWTO (R_NDS32_25_PCREL_RELA, /* type */ | |
| 653 | 1, /* rightshift */ | |
| 654 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 655 | 24, /* bitsize */ | |
| 656 | TRUE, /* pc_relative */ | |
| 657 | 0, /* bitpos */ | |
| 658 | complain_overflow_signed, /* complain_on_overflow */ | |
| 659 | bfd_elf_generic_reloc, /* special_function */ | |
| 660 | "R_NDS32_25_PCREL_RELA", /* name */ | |
| 661 | FALSE, /* partial_inplace */ | |
| 662 | 0xffffff, /* src_mask */ | |
| 663 | 0xffffff, /* dst_mask */ | |
| 664 | TRUE), /* pcrel_offset */ | |
| 665 | ||
| 666 | /* High 20 bits of address when lower 16 is or'd in. */ | |
| 667 | HOWTO (R_NDS32_HI20_RELA, /* type */ | |
| 668 | 12, /* rightshift */ | |
| 669 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 670 | 20, /* bitsize */ | |
| 671 | FALSE, /* pc_relative */ | |
| 672 | 0, /* bitpos */ | |
| 673 | complain_overflow_dont,/* complain_on_overflow */ | |
| 674 | bfd_elf_generic_reloc, /* special_function */ | |
| 675 | "R_NDS32_HI20_RELA", /* name */ | |
| 676 | FALSE, /* partial_inplace */ | |
| 677 | 0x000fffff, /* src_mask */ | |
| 678 | 0x000fffff, /* dst_mask */ | |
| 679 | FALSE), /* pcrel_offset */ | |
| 680 | ||
| 681 | /* Lower 12 bits of address. */ | |
| 682 | HOWTO (R_NDS32_LO12S3_RELA, /* type */ | |
| 683 | 3, /* rightshift */ | |
| 684 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 685 | 9, /* bitsize */ | |
| 686 | FALSE, /* pc_relative */ | |
| 687 | 0, /* bitpos */ | |
| 688 | complain_overflow_dont,/* complain_on_overflow */ | |
| 689 | bfd_elf_generic_reloc, /* special_function */ | |
| 690 | "R_NDS32_LO12S3_RELA", /* name */ | |
| 691 | FALSE, /* partial_inplace */ | |
| 692 | 0x000001ff, /* src_mask */ | |
| 693 | 0x000001ff, /* dst_mask */ | |
| 694 | FALSE), /* pcrel_offset */ | |
| 695 | ||
| 696 | /* Lower 12 bits of address. */ | |
| 697 | HOWTO (R_NDS32_LO12S2_RELA, /* type */ | |
| 698 | 2, /* rightshift */ | |
| 699 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 700 | 10, /* bitsize */ | |
| 701 | FALSE, /* pc_relative */ | |
| 702 | 0, /* bitpos */ | |
| 703 | complain_overflow_dont,/* complain_on_overflow */ | |
| 704 | bfd_elf_generic_reloc, /* special_function */ | |
| 705 | "R_NDS32_LO12S2_RELA", /* name */ | |
| 706 | FALSE, /* partial_inplace */ | |
| 707 | 0x000003ff, /* src_mask */ | |
| 708 | 0x000003ff, /* dst_mask */ | |
| 709 | FALSE), /* pcrel_offset */ | |
| 710 | ||
| 711 | /* Lower 12 bits of address. */ | |
| 712 | HOWTO (R_NDS32_LO12S1_RELA, /* type */ | |
| 713 | 1, /* rightshift */ | |
| 714 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 715 | 11, /* bitsize */ | |
| 716 | FALSE, /* pc_relative */ | |
| 717 | 0, /* bitpos */ | |
| 718 | complain_overflow_dont,/* complain_on_overflow */ | |
| 719 | bfd_elf_generic_reloc, /* special_function */ | |
| 720 | "R_NDS32_LO12S1_RELA", /* name */ | |
| 721 | FALSE, /* partial_inplace */ | |
| 722 | 0x000007ff, /* src_mask */ | |
| 723 | 0x000007ff, /* dst_mask */ | |
| 724 | FALSE), /* pcrel_offset */ | |
| 725 | ||
| 726 | /* Lower 12 bits of address. */ | |
| 727 | HOWTO (R_NDS32_LO12S0_RELA, /* type */ | |
| 728 | 0, /* rightshift */ | |
| 729 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 730 | 12, /* bitsize */ | |
| 731 | FALSE, /* pc_relative */ | |
| 732 | 0, /* bitpos */ | |
| 733 | complain_overflow_dont,/* complain_on_overflow */ | |
| 734 | bfd_elf_generic_reloc, /* special_function */ | |
| 735 | "R_NDS32_LO12S0_RELA", /* name */ | |
| 736 | FALSE, /* partial_inplace */ | |
| 737 | 0x00000fff, /* src_mask */ | |
| 738 | 0x00000fff, /* dst_mask */ | |
| 739 | FALSE), /* pcrel_offset */ | |
| 740 | ||
| 741 | /* Small data area 15 bits offset. */ | |
| 742 | HOWTO (R_NDS32_SDA15S3_RELA, /* type */ | |
| 743 | 3, /* rightshift */ | |
| 744 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 745 | 15, /* bitsize */ | |
| 746 | FALSE, /* pc_relative */ | |
| 747 | 0, /* bitpos */ | |
| 748 | complain_overflow_signed, /* complain_on_overflow */ | |
| 749 | bfd_elf_generic_reloc, /* special_function */ | |
| 750 | "R_NDS32_SDA15S3_RELA",/* name */ | |
| 751 | FALSE, /* partial_inplace */ | |
| 752 | 0x00007fff, /* src_mask */ | |
| 753 | 0x00007fff, /* dst_mask */ | |
| 754 | FALSE), /* pcrel_offset */ | |
| 755 | ||
| 756 | /* Small data area 15 bits offset. */ | |
| 757 | HOWTO (R_NDS32_SDA15S2_RELA, /* type */ | |
| 758 | 2, /* rightshift */ | |
| 759 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 760 | 15, /* bitsize */ | |
| 761 | FALSE, /* pc_relative */ | |
| 762 | 0, /* bitpos */ | |
| 763 | complain_overflow_signed, /* complain_on_overflow */ | |
| 764 | bfd_elf_generic_reloc, /* special_function */ | |
| 765 | "R_NDS32_SDA15S2_RELA",/* name */ | |
| 766 | FALSE, /* partial_inplace */ | |
| 767 | 0x00007fff, /* src_mask */ | |
| 768 | 0x00007fff, /* dst_mask */ | |
| 769 | FALSE), /* pcrel_offset */ | |
| 770 | ||
| 771 | HOWTO (R_NDS32_SDA15S1_RELA, /* type */ | |
| 772 | 1, /* rightshift */ | |
| 773 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 774 | 15, /* bitsize */ | |
| 775 | FALSE, /* pc_relative */ | |
| 776 | 0, /* bitpos */ | |
| 777 | complain_overflow_signed, /* complain_on_overflow */ | |
| 778 | bfd_elf_generic_reloc, /* special_function */ | |
| 779 | "R_NDS32_SDA15S1_RELA",/* name */ | |
| 780 | FALSE, /* partial_inplace */ | |
| 781 | 0x00007fff, /* src_mask */ | |
| 782 | 0x00007fff, /* dst_mask */ | |
| 783 | FALSE), /* pcrel_offset */ | |
| 784 | ||
| 785 | HOWTO (R_NDS32_SDA15S0_RELA, /* type */ | |
| 786 | 0, /* rightshift */ | |
| 787 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 788 | 15, /* bitsize */ | |
| 789 | FALSE, /* pc_relative */ | |
| 790 | 0, /* bitpos */ | |
| 791 | complain_overflow_signed, /* complain_on_overflow */ | |
| 792 | bfd_elf_generic_reloc, /* special_function */ | |
| 793 | "R_NDS32_SDA15S0_RELA",/* name */ | |
| 794 | FALSE, /* partial_inplace */ | |
| 795 | 0x00007fff, /* src_mask */ | |
| 796 | 0x00007fff, /* dst_mask */ | |
| 797 | FALSE), /* pcrel_offset */ | |
| 798 | ||
| 799 | /* GNU extension to record C++ vtable hierarchy */ | |
| 800 | HOWTO (R_NDS32_RELA_GNU_VTINHERIT, /* type */ | |
| 801 | 0, /* rightshift */ | |
| 802 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 803 | 0, /* bitsize */ | |
| 804 | FALSE, /* pc_relative */ | |
| 805 | 0, /* bitpos */ | |
| 806 | complain_overflow_dont,/* complain_on_overflow */ | |
| 807 | NULL, /* special_function */ | |
| 808 | "R_NDS32_RELA_GNU_VTINHERIT", /* name */ | |
| 809 | FALSE, /* partial_inplace */ | |
| 810 | 0, /* src_mask */ | |
| 811 | 0, /* dst_mask */ | |
| 812 | FALSE), /* pcrel_offset */ | |
| 813 | ||
| 814 | /* GNU extension to record C++ vtable member usage */ | |
| 815 | HOWTO (R_NDS32_RELA_GNU_VTENTRY, /* type */ | |
| 816 | 0, /* rightshift */ | |
| 817 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 818 | 0, /* bitsize */ | |
| 819 | FALSE, /* pc_relative */ | |
| 820 | 0, /* bitpos */ | |
| 821 | complain_overflow_dont,/* complain_on_overflow */ | |
| 822 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
| 823 | "R_NDS32_RELA_GNU_VTENTRY", /* name */ | |
| 824 | FALSE, /* partial_inplace */ | |
| 825 | 0, /* src_mask */ | |
| 826 | 0, /* dst_mask */ | |
| 827 | FALSE), /* pcrel_offset */ | |
| 828 | ||
| 829 | /* Like R_NDS32_20, but referring to the GOT table entry for | |
| 830 | the symbol. */ | |
| 831 | HOWTO (R_NDS32_GOT20, /* type */ | |
| 832 | 0, /* rightshift */ | |
| 833 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 834 | 20, /* bitsize */ | |
| 835 | FALSE, /* pc_relative */ | |
| 836 | 0, /* bitpos */ | |
| 837 | complain_overflow_signed, /* complain_on_overflow */ | |
| 838 | bfd_elf_generic_reloc, /* special_function */ | |
| 839 | "R_NDS32_GOT20", /* name */ | |
| 840 | FALSE, /* partial_inplace */ | |
| 841 | 0xfffff, /* src_mask */ | |
| 842 | 0xfffff, /* dst_mask */ | |
| 843 | FALSE), /* pcrel_offset */ | |
| 844 | ||
| 845 | /* Like R_NDS32_PCREL, but referring to the procedure linkage table | |
| 846 | entry for the symbol. */ | |
| 847 | HOWTO (R_NDS32_25_PLTREL, /* type */ | |
| 848 | 1, /* rightshift */ | |
| 849 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 850 | 24, /* bitsize */ | |
| 851 | TRUE, /* pc_relative */ | |
| 852 | 0, /* bitpos */ | |
| 853 | complain_overflow_signed, /* complain_on_overflow */ | |
| 854 | bfd_elf_generic_reloc, /* special_function */ | |
| 855 | "R_NDS32_25_PLTREL", /* name */ | |
| 856 | FALSE, /* partial_inplace */ | |
| 857 | 0xffffff, /* src_mask */ | |
| 858 | 0xffffff, /* dst_mask */ | |
| 859 | TRUE), /* pcrel_offset */ | |
| 860 | ||
| 861 | /* This is used only by the dynamic linker. The symbol should exist | |
| 862 | both in the object being run and in some shared library. The | |
| 863 | dynamic linker copies the data addressed by the symbol from the | |
| 864 | shared library into the object, because the object being | |
| 865 | run has to have the data at some particular address. */ | |
| 866 | HOWTO (R_NDS32_COPY, /* type */ | |
| 867 | 0, /* rightshift */ | |
| 868 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 869 | 32, /* bitsize */ | |
| 870 | FALSE, /* pc_relative */ | |
| 871 | 0, /* bitpos */ | |
| 872 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 873 | bfd_elf_generic_reloc, /* special_function */ | |
| 874 | "R_NDS32_COPY", /* name */ | |
| 875 | FALSE, /* partial_inplace */ | |
| 876 | 0xffffffff, /* src_mask */ | |
| 877 | 0xffffffff, /* dst_mask */ | |
| 878 | FALSE), /* pcrel_offset */ | |
| 879 | ||
| 880 | /* Like R_NDS32_20, but used when setting global offset table | |
| 881 | entries. */ | |
| 882 | HOWTO (R_NDS32_GLOB_DAT, /* type */ | |
| 883 | 0, /* rightshift */ | |
| 884 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 885 | 32, /* bitsize */ | |
| 886 | FALSE, /* pc_relative */ | |
| 887 | 0, /* bitpos */ | |
| 888 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 889 | bfd_elf_generic_reloc, /* special_function */ | |
| 890 | "R_NDS32_GLOB_DAT", /* name */ | |
| 891 | FALSE, /* partial_inplace */ | |
| 892 | 0xffffffff, /* src_mask */ | |
| 893 | 0xffffffff, /* dst_mask */ | |
| 894 | FALSE), /* pcrel_offset */ | |
| 895 | ||
| 896 | /* Marks a procedure linkage table entry for a symbol. */ | |
| 897 | HOWTO (R_NDS32_JMP_SLOT, /* type */ | |
| 898 | 0, /* rightshift */ | |
| 899 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 900 | 32, /* bitsize */ | |
| 901 | FALSE, /* pc_relative */ | |
| 902 | 0, /* bitpos */ | |
| 903 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 904 | bfd_elf_generic_reloc, /* special_function */ | |
| 905 | "R_NDS32_JMP_SLOT", /* name */ | |
| 906 | FALSE, /* partial_inplace */ | |
| 907 | 0xffffffff, /* src_mask */ | |
| 908 | 0xffffffff, /* dst_mask */ | |
| 909 | FALSE), /* pcrel_offset */ | |
| 910 | ||
| 911 | /* Used only by the dynamic linker. When the object is run, this | |
| 912 | longword is set to the load address of the object, plus the | |
| 913 | addend. */ | |
| 914 | HOWTO (R_NDS32_RELATIVE, /* type */ | |
| 915 | 0, /* rightshift */ | |
| 916 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 917 | 32, /* bitsize */ | |
| 918 | FALSE, /* pc_relative */ | |
| 919 | 0, /* bitpos */ | |
| 920 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 921 | bfd_elf_generic_reloc, /* special_function */ | |
| 922 | "R_NDS32_RELATIVE", /* name */ | |
| 923 | FALSE, /* partial_inplace */ | |
| 924 | 0xffffffff, /* src_mask */ | |
| 925 | 0xffffffff, /* dst_mask */ | |
| 926 | FALSE), /* pcrel_offset */ | |
| 927 | ||
| 928 | HOWTO (R_NDS32_GOTOFF, /* type */ | |
| 929 | 0, /* rightshift */ | |
| 930 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 931 | 20, /* bitsize */ | |
| 932 | FALSE, /* pc_relative */ | |
| 933 | 0, /* bitpos */ | |
| 934 | complain_overflow_signed, /* complain_on_overflow */ | |
| 935 | bfd_elf_generic_reloc, /* special_function */ | |
| 936 | "R_NDS32_GOTOFF", /* name */ | |
| 937 | FALSE, /* partial_inplace */ | |
| 938 | 0xfffff, /* src_mask */ | |
| 939 | 0xfffff, /* dst_mask */ | |
| 940 | FALSE), /* pcrel_offset */ | |
| 941 | ||
| 942 | /* An PC Relative 20-bit relocation used when setting PIC offset | |
| 943 | table register. */ | |
| 944 | HOWTO (R_NDS32_GOTPC20, /* type */ | |
| 945 | 0, /* rightshift */ | |
| 946 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 947 | 20, /* bitsize */ | |
| 948 | TRUE, /* pc_relative */ | |
| 949 | 0, /* bitpos */ | |
| 950 | complain_overflow_signed, /* complain_on_overflow */ | |
| 951 | bfd_elf_generic_reloc, /* special_function */ | |
| 952 | "R_NDS32_GOTPC20", /* name */ | |
| 953 | FALSE, /* partial_inplace */ | |
| 954 | 0xfffff, /* src_mask */ | |
| 955 | 0xfffff, /* dst_mask */ | |
| 956 | TRUE), /* pcrel_offset */ | |
| 957 | ||
| 958 | /* Like R_NDS32_HI20, but referring to the GOT table entry for | |
| 959 | the symbol. */ | |
| 960 | HOWTO (R_NDS32_GOT_HI20, /* type */ | |
| 961 | 12, /* rightshift */ | |
| 962 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 963 | 20, /* bitsize */ | |
| 964 | FALSE, /* pc_relative */ | |
| 965 | 0, /* bitpos */ | |
| 966 | complain_overflow_dont,/* complain_on_overflow */ | |
| 967 | bfd_elf_generic_reloc, /* special_function */ | |
| 968 | "R_NDS32_GOT_HI20", /* name */ | |
| 969 | FALSE, /* partial_inplace */ | |
| 970 | 0x000fffff, /* src_mask */ | |
| 971 | 0x000fffff, /* dst_mask */ | |
| 972 | FALSE), /* pcrel_offset */ | |
| 973 | HOWTO (R_NDS32_GOT_LO12, /* type */ | |
| 974 | 0, /* rightshift */ | |
| 975 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 976 | 12, /* bitsize */ | |
| 977 | FALSE, /* pc_relative */ | |
| 978 | 0, /* bitpos */ | |
| 979 | complain_overflow_dont,/* complain_on_overflow */ | |
| 980 | bfd_elf_generic_reloc, /* special_function */ | |
| 981 | "R_NDS32_GOT_LO12", /* name */ | |
| 982 | FALSE, /* partial_inplace */ | |
| 983 | 0x00000fff, /* src_mask */ | |
| 984 | 0x00000fff, /* dst_mask */ | |
| 985 | FALSE), /* pcrel_offset */ | |
| 986 | ||
| 987 | /* An PC Relative relocation used when setting PIC offset table register. | |
| 988 | Like R_NDS32_HI20, but referring to the GOT table entry for | |
| 989 | the symbol. */ | |
| 990 | HOWTO (R_NDS32_GOTPC_HI20, /* type */ | |
| 991 | 12, /* rightshift */ | |
| 992 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 993 | 20, /* bitsize */ | |
| 994 | FALSE, /* pc_relative */ | |
| 995 | 0, /* bitpos */ | |
| 996 | complain_overflow_dont,/* complain_on_overflow */ | |
| 997 | bfd_elf_generic_reloc, /* special_function */ | |
| 998 | "R_NDS32_GOTPC_HI20", /* name */ | |
| 999 | FALSE, /* partial_inplace */ | |
| 1000 | 0x000fffff, /* src_mask */ | |
| 1001 | 0x000fffff, /* dst_mask */ | |
| 1002 | TRUE), /* pcrel_offset */ | |
| 1003 | HOWTO (R_NDS32_GOTPC_LO12, /* type */ | |
| 1004 | 0, /* rightshift */ | |
| 1005 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1006 | 12, /* bitsize */ | |
| 1007 | FALSE, /* pc_relative */ | |
| 1008 | 0, /* bitpos */ | |
| 1009 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1010 | bfd_elf_generic_reloc, /* special_function */ | |
| 1011 | "R_NDS32_GOTPC_LO12", /* name */ | |
| 1012 | FALSE, /* partial_inplace */ | |
| 1013 | 0x00000fff, /* src_mask */ | |
| 1014 | 0x00000fff, /* dst_mask */ | |
| 1015 | TRUE), /* pcrel_offset */ | |
| 1016 | ||
| 1017 | HOWTO (R_NDS32_GOTOFF_HI20, /* type */ | |
| 1018 | 12, /* rightshift */ | |
| 1019 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1020 | 20, /* bitsize */ | |
| 1021 | FALSE, /* pc_relative */ | |
| 1022 | 0, /* bitpos */ | |
| 1023 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1024 | bfd_elf_generic_reloc, /* special_function */ | |
| 1025 | "R_NDS32_GOTOFF_HI20", /* name */ | |
| 1026 | FALSE, /* partial_inplace */ | |
| 1027 | 0x000fffff, /* src_mask */ | |
| 1028 | 0x000fffff, /* dst_mask */ | |
| 1029 | FALSE), /* pcrel_offset */ | |
| 1030 | HOWTO (R_NDS32_GOTOFF_LO12, /* type */ | |
| 1031 | 0, /* rightshift */ | |
| 1032 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1033 | 12, /* bitsize */ | |
| 1034 | FALSE, /* pc_relative */ | |
| 1035 | 0, /* bitpos */ | |
| 1036 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1037 | bfd_elf_generic_reloc, /* special_function */ | |
| 1038 | "R_NDS32_GOTOFF_LO12", /* name */ | |
| 1039 | FALSE, /* partial_inplace */ | |
| 1040 | 0x00000fff, /* src_mask */ | |
| 1041 | 0x00000fff, /* dst_mask */ | |
| 1042 | FALSE), /* pcrel_offset */ | |
| 1043 | ||
| 1044 | /* Alignment hint for relaxable instruction. This is used with | |
| 1045 | R_NDS32_LABEL as a pair. Relax this instruction from 4 bytes to 2 | |
| 1046 | in order to make next label aligned on word boundary. */ | |
| 1047 | HOWTO (R_NDS32_INSN16, /* type */ | |
| 1048 | 0, /* rightshift */ | |
| 1049 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1050 | 32, /* bitsize */ | |
| 1051 | FALSE, /* pc_relative */ | |
| 1052 | 0, /* bitpos */ | |
| 1053 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1054 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1055 | "R_NDS32_INSN16", /* name */ | |
| 1056 | FALSE, /* partial_inplace */ | |
| 1057 | 0x00000fff, /* src_mask */ | |
| 1058 | 0x00000fff, /* dst_mask */ | |
| 1059 | FALSE), /* pcrel_offset */ | |
| 1060 | ||
| 1061 | /* Alignment hint for label. */ | |
| 1062 | HOWTO (R_NDS32_LABEL, /* type */ | |
| 1063 | 0, /* rightshift */ | |
| 1064 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1065 | 32, /* bitsize */ | |
| 1066 | FALSE, /* pc_relative */ | |
| 1067 | 0, /* bitpos */ | |
| 1068 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1069 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1070 | "R_NDS32_LABEL", /* name */ | |
| 1071 | FALSE, /* partial_inplace */ | |
| 1072 | 0xffffffff, /* src_mask */ | |
| 1073 | 0xffffffff, /* dst_mask */ | |
| 1074 | FALSE), /* pcrel_offset */ | |
| 1075 | ||
| 1076 | /* Relax hint for unconditional call sequence */ | |
| 1077 | HOWTO (R_NDS32_LONGCALL1, /* type */ | |
| 1078 | 0, /* rightshift */ | |
| 1079 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1080 | 32, /* bitsize */ | |
| 1081 | FALSE, /* pc_relative */ | |
| 1082 | 0, /* bitpos */ | |
| 1083 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1084 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1085 | "R_NDS32_LONGCALL1", /* name */ | |
| 1086 | FALSE, /* partial_inplace */ | |
| 1087 | 0xffffffff, /* src_mask */ | |
| 1088 | 0xffffffff, /* dst_mask */ | |
| 1089 | FALSE), /* pcrel_offset */ | |
| 1090 | ||
| 1091 | /* Relax hint for conditional call sequence. */ | |
| 1092 | HOWTO (R_NDS32_LONGCALL2, /* type */ | |
| 1093 | 0, /* rightshift */ | |
| 1094 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1095 | 32, /* bitsize */ | |
| 1096 | FALSE, /* pc_relative */ | |
| 1097 | 0, /* bitpos */ | |
| 1098 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1099 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1100 | "R_NDS32_LONGCALL2", /* name */ | |
| 1101 | FALSE, /* partial_inplace */ | |
| 1102 | 0xffffffff, /* src_mask */ | |
| 1103 | 0xffffffff, /* dst_mask */ | |
| 1104 | FALSE), /* pcrel_offset */ | |
| 1105 | ||
| 1106 | /* Relax hint for conditional call sequence. */ | |
| 1107 | HOWTO (R_NDS32_LONGCALL3, /* type */ | |
| 1108 | 0, /* rightshift */ | |
| 1109 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1110 | 32, /* bitsize */ | |
| 1111 | FALSE, /* pc_relative */ | |
| 1112 | 0, /* bitpos */ | |
| 1113 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1114 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1115 | "R_NDS32_LONGCALL3", /* name */ | |
| 1116 | FALSE, /* partial_inplace */ | |
| 1117 | 0xffffffff, /* src_mask */ | |
| 1118 | 0xffffffff, /* dst_mask */ | |
| 1119 | FALSE), /* pcrel_offset */ | |
| 1120 | ||
| 1121 | /* Relax hint for unconditional branch sequence. */ | |
| 1122 | HOWTO (R_NDS32_LONGJUMP1, /* type */ | |
| 1123 | 0, /* rightshift */ | |
| 1124 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1125 | 32, /* bitsize */ | |
| 1126 | FALSE, /* pc_relative */ | |
| 1127 | 0, /* bitpos */ | |
| 1128 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1129 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1130 | "R_NDS32_LONGJUMP1", /* name */ | |
| 1131 | FALSE, /* partial_inplace */ | |
| 1132 | 0xffffffff, /* src_mask */ | |
| 1133 | 0xffffffff, /* dst_mask */ | |
| 1134 | FALSE), /* pcrel_offset */ | |
| 1135 | ||
| 1136 | /* Relax hint for conditional branch sequence. */ | |
| 1137 | HOWTO (R_NDS32_LONGJUMP2, /* type */ | |
| 1138 | 0, /* rightshift */ | |
| 1139 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1140 | 32, /* bitsize */ | |
| 1141 | FALSE, /* pc_relative */ | |
| 1142 | 0, /* bitpos */ | |
| 1143 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1144 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1145 | "R_NDS32_LONGJUMP2", /* name */ | |
| 1146 | FALSE, /* partial_inplace */ | |
| 1147 | 0xffffffff, /* src_mask */ | |
| 1148 | 0xffffffff, /* dst_mask */ | |
| 1149 | FALSE), /* pcrel_offset */ | |
| 1150 | ||
| 1151 | /* Relax hint for conditional branch sequence. */ | |
| 1152 | HOWTO (R_NDS32_LONGJUMP3, /* type */ | |
| 1153 | 0, /* rightshift */ | |
| 1154 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1155 | 32, /* bitsize */ | |
| 1156 | FALSE, /* pc_relative */ | |
| 1157 | 0, /* bitpos */ | |
| 1158 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1159 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1160 | "R_NDS32_LONGJUMP3", /* name */ | |
| 1161 | FALSE, /* partial_inplace */ | |
| 1162 | 0xffffffff, /* src_mask */ | |
| 1163 | 0xffffffff, /* dst_mask */ | |
| 1164 | FALSE), /* pcrel_offset */ | |
| 1165 | ||
| 1166 | /* Relax hint for load/store sequence. */ | |
| 1167 | HOWTO (R_NDS32_LOADSTORE, /* type */ | |
| 1168 | 0, /* rightshift */ | |
| 1169 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1170 | 32, /* bitsize */ | |
| 1171 | FALSE, /* pc_relative */ | |
| 1172 | 0, /* bitpos */ | |
| 1173 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1174 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1175 | "R_NDS32_LOADSTORE", /* name */ | |
| 1176 | FALSE, /* partial_inplace */ | |
| 1177 | 0xffffffff, /* src_mask */ | |
| 1178 | 0xffffffff, /* dst_mask */ | |
| 1179 | FALSE), /* pcrel_offset */ | |
| 1180 | ||
| 1181 | /* Relax hint for load/store sequence. */ | |
| 1182 | HOWTO (R_NDS32_9_FIXED_RELA, /* type */ | |
| 1183 | 0, /* rightshift */ | |
| 1184 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1185 | 16, /* bitsize */ | |
| 1186 | FALSE, /* pc_relative */ | |
| 1187 | 0, /* bitpos */ | |
| 1188 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1189 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1190 | "R_NDS32_9_FIXED_RELA",/* name */ | |
| 1191 | FALSE, /* partial_inplace */ | |
| 1192 | 0x000000ff, /* src_mask */ | |
| 1193 | 0x000000ff, /* dst_mask */ | |
| 1194 | FALSE), /* pcrel_offset */ | |
| 1195 | ||
| 1196 | /* Relax hint for load/store sequence. */ | |
| 1197 | HOWTO (R_NDS32_15_FIXED_RELA, /* type */ | |
| 1198 | 0, /* rightshift */ | |
| 1199 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1200 | 32, /* bitsize */ | |
| 1201 | FALSE, /* pc_relative */ | |
| 1202 | 0, /* bitpos */ | |
| 1203 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1204 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1205 | "R_NDS32_15_FIXED_RELA", /* name */ | |
| 1206 | FALSE, /* partial_inplace */ | |
| 1207 | 0x00003fff, /* src_mask */ | |
| 1208 | 0x00003fff, /* dst_mask */ | |
| 1209 | FALSE), /* pcrel_offset */ | |
| 1210 | ||
| 1211 | /* Relax hint for load/store sequence. */ | |
| 1212 | HOWTO (R_NDS32_17_FIXED_RELA, /* type */ | |
| 1213 | 0, /* rightshift */ | |
| 1214 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1215 | 32, /* bitsize */ | |
| 1216 | FALSE, /* pc_relative */ | |
| 1217 | 0, /* bitpos */ | |
| 1218 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1219 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1220 | "R_NDS32_17_FIXED_RELA", /* name */ | |
| 1221 | FALSE, /* partial_inplace */ | |
| 1222 | 0x0000ffff, /* src_mask */ | |
| 1223 | 0x0000ffff, /* dst_mask */ | |
| 1224 | FALSE), /* pcrel_offset */ | |
| 1225 | ||
| 1226 | /* Relax hint for load/store sequence. */ | |
| 1227 | HOWTO (R_NDS32_25_FIXED_RELA, /* type */ | |
| 1228 | 0, /* rightshift */ | |
| 1229 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1230 | 32, /* bitsize */ | |
| 1231 | FALSE, /* pc_relative */ | |
| 1232 | 0, /* bitpos */ | |
| 1233 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1234 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1235 | "R_NDS32_25_FIXED_RELA", /* name */ | |
| 1236 | FALSE, /* partial_inplace */ | |
| 1237 | 0x00ffffff, /* src_mask */ | |
| 1238 | 0x00ffffff, /* dst_mask */ | |
| 1239 | FALSE), /* pcrel_offset */ | |
| 1240 | ||
| 1241 | /* High 20 bits of PLT symbol offset relative to PC. */ | |
| 1242 | HOWTO (R_NDS32_PLTREL_HI20, /* type */ | |
| 1243 | 12, /* rightshift */ | |
| 1244 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1245 | 20, /* bitsize */ | |
| 1246 | FALSE, /* pc_relative */ | |
| 1247 | 0, /* bitpos */ | |
| 1248 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1249 | bfd_elf_generic_reloc, /* special_function */ | |
| 1250 | "R_NDS32_PLTREL_HI20", /* name */ | |
| 1251 | FALSE, /* partial_inplace */ | |
| 1252 | 0x000fffff, /* src_mask */ | |
| 1253 | 0x000fffff, /* dst_mask */ | |
| 1254 | FALSE), /* pcrel_offset */ | |
| 1255 | ||
| 1256 | /* Low 12 bits of PLT symbol offset relative to PC. */ | |
| 1257 | HOWTO (R_NDS32_PLTREL_LO12, /* type */ | |
| 1258 | 0, /* rightshift */ | |
| 1259 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1260 | 12, /* bitsize */ | |
| 1261 | FALSE, /* pc_relative */ | |
| 1262 | 0, /* bitpos */ | |
| 1263 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1264 | bfd_elf_generic_reloc, /* special_function */ | |
| 1265 | "R_NDS32_PLTREL_LO12", /* name */ | |
| 1266 | FALSE, /* partial_inplace */ | |
| 1267 | 0x00000fff, /* src_mask */ | |
| 1268 | 0x00000fff, /* dst_mask */ | |
| 1269 | FALSE), /* pcrel_offset */ | |
| 1270 | ||
| 1271 | /* High 20 bits of PLT symbol offset relative to GOT (GP). */ | |
| 1272 | HOWTO (R_NDS32_PLT_GOTREL_HI20, /* type */ | |
| 1273 | 12, /* rightshift */ | |
| 1274 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1275 | 20, /* bitsize */ | |
| 1276 | FALSE, /* pc_relative */ | |
| 1277 | 0, /* bitpos */ | |
| 1278 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1279 | bfd_elf_generic_reloc, /* special_function */ | |
| 1280 | "R_NDS32_PLT_GOTREL_HI20", /* name */ | |
| 1281 | FALSE, /* partial_inplace */ | |
| 1282 | 0x000fffff, /* src_mask */ | |
| 1283 | 0x000fffff, /* dst_mask */ | |
| 1284 | FALSE), /* pcrel_offset */ | |
| 1285 | ||
| 1286 | /* Low 12 bits of PLT symbol offset relative to GOT (GP). */ | |
| 1287 | HOWTO (R_NDS32_PLT_GOTREL_LO12, /* type */ | |
| 1288 | 0, /* rightshift */ | |
| 1289 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1290 | 12, /* bitsize */ | |
| 1291 | FALSE, /* pc_relative */ | |
| 1292 | 0, /* bitpos */ | |
| 1293 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1294 | bfd_elf_generic_reloc, /* special_function */ | |
| 1295 | "R_NDS32_PLT_GOTREL_LO12", /* name */ | |
| 1296 | FALSE, /* partial_inplace */ | |
| 1297 | 0x00000fff, /* src_mask */ | |
| 1298 | 0x00000fff, /* dst_mask */ | |
| 1299 | FALSE), /* pcrel_offset */ | |
| 1300 | ||
| 1301 | /* Small data area 12 bits offset. */ | |
| 1302 | HOWTO (R_NDS32_SDA12S2_DP_RELA, /* type */ | |
| 1303 | 2, /* rightshift */ | |
| 1304 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1305 | 12, /* bitsize */ | |
| 1306 | FALSE, /* pc_relative */ | |
| 1307 | 0, /* bitpos */ | |
| 1308 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1309 | bfd_elf_generic_reloc, /* special_function */ | |
| 1310 | "R_NDS32_SDA12S2_DP_RELA", /* name */ | |
| 1311 | FALSE, /* partial_inplace */ | |
| 1312 | 0x00000fff, /* src_mask */ | |
| 1313 | 0x00000fff, /* dst_mask */ | |
| 1314 | FALSE), /* pcrel_offset */ | |
| 1315 | ||
| 1316 | /* Small data area 12 bits offset. */ | |
| 1317 | HOWTO (R_NDS32_SDA12S2_SP_RELA, /* type */ | |
| 1318 | 2, /* rightshift */ | |
| 1319 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1320 | 12, /* bitsize */ | |
| 1321 | FALSE, /* pc_relative */ | |
| 1322 | 0, /* bitpos */ | |
| 1323 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1324 | bfd_elf_generic_reloc, /* special_function */ | |
| 1325 | "R_NDS32_SDA12S2_SP_RELA", /* name */ | |
| 1326 | FALSE, /* partial_inplace */ | |
| 1327 | 0x00000fff, /* src_mask */ | |
| 1328 | 0x00000fff, /* dst_mask */ | |
| 1329 | FALSE), /* pcrel_offset */ | |
| 1330 | /* Lower 12 bits of address. */ | |
| 1331 | ||
| 1332 | HOWTO (R_NDS32_LO12S2_DP_RELA, /* type */ | |
| 1333 | 2, /* rightshift */ | |
| 1334 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1335 | 10, /* bitsize */ | |
| 1336 | FALSE, /* pc_relative */ | |
| 1337 | 0, /* bitpos */ | |
| 1338 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1339 | bfd_elf_generic_reloc, /* special_function */ | |
| 1340 | "R_NDS32_LO12S2_DP_RELA", /* name */ | |
| 1341 | FALSE, /* partial_inplace */ | |
| 1342 | 0x000003ff, /* src_mask */ | |
| 1343 | 0x000003ff, /* dst_mask */ | |
| 1344 | FALSE), /* pcrel_offset */ | |
| 1345 | ||
| 1346 | /* Lower 12 bits of address. */ | |
| 1347 | HOWTO (R_NDS32_LO12S2_SP_RELA,/* type */ | |
| 1348 | 2, /* rightshift */ | |
| 1349 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1350 | 10, /* bitsize */ | |
| 1351 | FALSE, /* pc_relative */ | |
| 1352 | 0, /* bitpos */ | |
| 1353 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1354 | bfd_elf_generic_reloc, /* special_function */ | |
| 1355 | "R_NDS32_LO12S2_SP_RELA", /* name */ | |
| 1356 | FALSE, /* partial_inplace */ | |
| 1357 | 0x000003ff, /* src_mask */ | |
| 1358 | 0x000003ff, /* dst_mask */ | |
| 1359 | FALSE), /* pcrel_offset */ | |
| 1360 | /* Lower 12 bits of address. Special identity for or case. */ | |
| 1361 | HOWTO (R_NDS32_LO12S0_ORI_RELA, /* type */ | |
| 1362 | 0, /* rightshift */ | |
| 1363 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1364 | 12, /* bitsize */ | |
| 1365 | FALSE, /* pc_relative */ | |
| 1366 | 0, /* bitpos */ | |
| 1367 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1368 | bfd_elf_generic_reloc, /* special_function */ | |
| 1369 | "R_NDS32_LO12S0_ORI_RELA", /* name */ | |
| 1370 | FALSE, /* partial_inplace */ | |
| 1371 | 0x00000fff, /* src_mask */ | |
| 1372 | 0x00000fff, /* dst_mask */ | |
| 1373 | FALSE), /* pcrel_offset */ | |
| 1374 | /* Small data area 19 bits offset. */ | |
| 1375 | HOWTO (R_NDS32_SDA16S3_RELA, /* type */ | |
| 1376 | 3, /* rightshift */ | |
| 1377 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1378 | 16, /* bitsize */ | |
| 1379 | FALSE, /* pc_relative */ | |
| 1380 | 0, /* bitpos */ | |
| 1381 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1382 | bfd_elf_generic_reloc, /* special_function */ | |
| 1383 | "R_NDS32_SDA16S3_RELA",/* name */ | |
| 1384 | FALSE, /* partial_inplace */ | |
| 1385 | 0x0000ffff, /* src_mask */ | |
| 1386 | 0x0000ffff, /* dst_mask */ | |
| 1387 | FALSE), /* pcrel_offset */ | |
| 1388 | ||
| 1389 | /* Small data area 15 bits offset. */ | |
| 1390 | HOWTO (R_NDS32_SDA17S2_RELA, /* type */ | |
| 1391 | 2, /* rightshift */ | |
| 1392 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1393 | 17, /* bitsize */ | |
| 1394 | FALSE, /* pc_relative */ | |
| 1395 | 0, /* bitpos */ | |
| 1396 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1397 | bfd_elf_generic_reloc, /* special_function */ | |
| 1398 | "R_NDS32_SDA17S2_RELA",/* name */ | |
| 1399 | FALSE, /* partial_inplace */ | |
| 1400 | 0x0001ffff, /* src_mask */ | |
| 1401 | 0x0001ffff, /* dst_mask */ | |
| 1402 | FALSE), /* pcrel_offset */ | |
| 1403 | ||
| 1404 | HOWTO (R_NDS32_SDA18S1_RELA, /* type */ | |
| 1405 | 1, /* rightshift */ | |
| 1406 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1407 | 18, /* bitsize */ | |
| 1408 | FALSE, /* pc_relative */ | |
| 1409 | 0, /* bitpos */ | |
| 1410 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1411 | bfd_elf_generic_reloc, /* special_function */ | |
| 1412 | "R_NDS32_SDA18S1_RELA",/* name */ | |
| 1413 | FALSE, /* partial_inplace */ | |
| 1414 | 0x0003ffff, /* src_mask */ | |
| 1415 | 0x0003ffff, /* dst_mask */ | |
| 1416 | FALSE), /* pcrel_offset */ | |
| 1417 | ||
| 1418 | HOWTO (R_NDS32_SDA19S0_RELA, /* type */ | |
| 1419 | 0, /* rightshift */ | |
| 1420 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1421 | 19, /* bitsize */ | |
| 1422 | FALSE, /* pc_relative */ | |
| 1423 | 0, /* bitpos */ | |
| 1424 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1425 | bfd_elf_generic_reloc, /* special_function */ | |
| 1426 | "R_NDS32_SDA19S0_RELA",/* name */ | |
| 1427 | FALSE, /* partial_inplace */ | |
| 1428 | 0x0007ffff, /* src_mask */ | |
| 1429 | 0x0007ffff, /* dst_mask */ | |
| 1430 | FALSE), /* pcrel_offset */ | |
| 1431 | HOWTO (R_NDS32_DWARF2_OP1_RELA, /* type */ | |
| 1432 | 0, /* rightshift */ | |
| 1433 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1434 | 8, /* bitsize */ | |
| 1435 | FALSE, /* pc_relative */ | |
| 1436 | 0, /* bitpos */ | |
| 1437 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1438 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1439 | "R_NDS32_DWARF2_OP1_RELA", /* name */ | |
| 1440 | FALSE, /* partial_inplace */ | |
| 1441 | 0xff, /* src_mask */ | |
| 1442 | 0xff, /* dst_mask */ | |
| 1443 | FALSE), /* pcrel_offset */ | |
| 1444 | HOWTO (R_NDS32_DWARF2_OP2_RELA, /* type */ | |
| 1445 | 0, /* rightshift */ | |
| 1446 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1447 | 16, /* bitsize */ | |
| 1448 | FALSE, /* pc_relative */ | |
| 1449 | 0, /* bitpos */ | |
| 1450 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1451 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1452 | "R_NDS32_DWARF2_OP2_RELA", /* name */ | |
| 1453 | FALSE, /* partial_inplace */ | |
| 1454 | 0xffff, /* src_mask */ | |
| 1455 | 0xffff, /* dst_mask */ | |
| 1456 | FALSE), /* pcrel_offset */ | |
| 1457 | HOWTO (R_NDS32_DWARF2_LEB_RELA, /* type */ | |
| 1458 | 0, /* rightshift */ | |
| 1459 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1460 | 32, /* bitsize */ | |
| 1461 | FALSE, /* pc_relative */ | |
| 1462 | 0, /* bitpos */ | |
| 1463 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1464 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1465 | "R_NDS32_DWARF2_LEB_RELA", /* name */ | |
| 1466 | FALSE, /* partial_inplace */ | |
| 1467 | 0xffffffff, /* src_mask */ | |
| 1468 | 0xffffffff, /* dst_mask */ | |
| 1469 | FALSE), /* pcrel_offset */ | |
| 1470 | HOWTO (R_NDS32_UPDATE_TA_RELA,/* type */ | |
| 1471 | 0, /* rightshift */ | |
| 1472 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1473 | 16, /* bitsize */ | |
| 1474 | FALSE, /* pc_relative */ | |
| 1475 | 0, /* bitpos */ | |
| 1476 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1477 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1478 | "R_NDS32_UPDATE_TA_RELA", /* name */ | |
| 1479 | FALSE, /* partial_inplace */ | |
| 1480 | 0xffff, /* src_mask */ | |
| 1481 | 0xffff, /* dst_mask */ | |
| 1482 | FALSE), /* pcrel_offset */ | |
| 1483 | /* Like R_NDS32_PCREL, but referring to the procedure linkage table | |
| 1484 | entry for the symbol. */ | |
| 1485 | HOWTO (R_NDS32_9_PLTREL, /* type */ | |
| 1486 | 1, /* rightshift */ | |
| 1487 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1488 | 8, /* bitsize */ | |
| 1489 | TRUE, /* pc_relative */ | |
| 1490 | 0, /* bitpos */ | |
| 1491 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1492 | bfd_elf_generic_reloc, /* special_function */ | |
| 1493 | "R_NDS32_9_PLTREL", /* name */ | |
| 1494 | FALSE, /* partial_inplace */ | |
| 1495 | 0xff, /* src_mask */ | |
| 1496 | 0xff, /* dst_mask */ | |
| 1497 | TRUE), /* pcrel_offset */ | |
| 1498 | /* Low 20 bits of PLT symbol offset relative to GOT (GP). */ | |
| 1499 | HOWTO (R_NDS32_PLT_GOTREL_LO20, /* type */ | |
| 1500 | 0, /* rightshift */ | |
| 1501 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1502 | 20, /* bitsize */ | |
| 1503 | FALSE, /* pc_relative */ | |
| 1504 | 0, /* bitpos */ | |
| 1505 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1506 | bfd_elf_generic_reloc, /* special_function */ | |
| 1507 | "R_NDS32_PLT_GOTREL_LO20", /* name */ | |
| 1508 | FALSE, /* partial_inplace */ | |
| 1509 | 0x000fffff, /* src_mask */ | |
| 1510 | 0x000fffff, /* dst_mask */ | |
| 1511 | FALSE), /* pcrel_offset */ | |
| 1512 | /* low 15 bits of PLT symbol offset relative to GOT (GP) */ | |
| 1513 | HOWTO (R_NDS32_PLT_GOTREL_LO15, /* type */ | |
| 1514 | 0, /* rightshift */ | |
| 1515 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1516 | 15, /* bitsize */ | |
| 1517 | FALSE, /* pc_relative */ | |
| 1518 | 0, /* bitpos */ | |
| 1519 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1520 | bfd_elf_generic_reloc, /* special_function */ | |
| 1521 | "R_NDS32_PLT_GOTREL_LO15", /* name */ | |
| 1522 | FALSE, /* partial_inplace */ | |
| 1523 | 0x00007fff, /* src_mask */ | |
| 1524 | 0x00007fff, /* dst_mask */ | |
| 1525 | FALSE), /* pcrel_offset */ | |
| 1526 | /* Low 19 bits of PLT symbol offset relative to GOT (GP). */ | |
| 1527 | HOWTO (R_NDS32_PLT_GOTREL_LO19, /* type */ | |
| 1528 | 0, /* rightshift */ | |
| 1529 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1530 | 19, /* bitsize */ | |
| 1531 | FALSE, /* pc_relative */ | |
| 1532 | 0, /* bitpos */ | |
| 1533 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1534 | bfd_elf_generic_reloc, /* special_function */ | |
| 1535 | "R_NDS32_PLT_GOTREL_LO19", /* name */ | |
| 1536 | FALSE, /* partial_inplace */ | |
| 1537 | 0x0007ffff, /* src_mask */ | |
| 1538 | 0x0007ffff, /* dst_mask */ | |
| 1539 | FALSE), /* pcrel_offset */ | |
| 1540 | HOWTO (R_NDS32_GOT_LO15, /* type */ | |
| 1541 | 0, /* rightshift */ | |
| 1542 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1543 | 15, /* bitsize */ | |
| 1544 | FALSE, /* pc_relative */ | |
| 1545 | 0, /* bitpos */ | |
| 1546 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1547 | bfd_elf_generic_reloc, /* special_function */ | |
| 1548 | "R_NDS32_GOT_LO15", /* name */ | |
| 1549 | FALSE, /* partial_inplace */ | |
| 1550 | 0x00007fff, /* src_mask */ | |
| 1551 | 0x00007fff, /* dst_mask */ | |
| 1552 | FALSE), /* pcrel_offset */ | |
| 1553 | HOWTO (R_NDS32_GOT_LO19, /* type */ | |
| 1554 | 0, /* rightshift */ | |
| 1555 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1556 | 19, /* bitsize */ | |
| 1557 | FALSE, /* pc_relative */ | |
| 1558 | 0, /* bitpos */ | |
| 1559 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1560 | bfd_elf_generic_reloc, /* special_function */ | |
| 1561 | "R_NDS32_GOT_LO19", /* name */ | |
| 1562 | FALSE, /* partial_inplace */ | |
| 1563 | 0x0007ffff, /* src_mask */ | |
| 1564 | 0x0007ffff, /* dst_mask */ | |
| 1565 | FALSE), /* pcrel_offset */ | |
| 1566 | HOWTO (R_NDS32_GOTOFF_LO15, /* type */ | |
| 1567 | 0, /* rightshift */ | |
| 1568 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1569 | 15, /* bitsize */ | |
| 1570 | FALSE, /* pc_relative */ | |
| 1571 | 0, /* bitpos */ | |
| 1572 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1573 | bfd_elf_generic_reloc, /* special_function */ | |
| 1574 | "R_NDS32_GOTOFF_LO15", /* name */ | |
| 1575 | FALSE, /* partial_inplace */ | |
| 1576 | 0x00007fff, /* src_mask */ | |
| 1577 | 0x00007fff, /* dst_mask */ | |
| 1578 | FALSE), /* pcrel_offset */ | |
| 1579 | HOWTO (R_NDS32_GOTOFF_LO19, /* type */ | |
| 1580 | 0, /* rightshift */ | |
| 1581 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1582 | 19, /* bitsize */ | |
| 1583 | FALSE, /* pc_relative */ | |
| 1584 | 0, /* bitpos */ | |
| 1585 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1586 | bfd_elf_generic_reloc, /* special_function */ | |
| 1587 | "R_NDS32_GOTOFF_LO19", /* name */ | |
| 1588 | FALSE, /* partial_inplace */ | |
| 1589 | 0x0007ffff, /* src_mask */ | |
| 1590 | 0x0007ffff, /* dst_mask */ | |
| 1591 | FALSE), /* pcrel_offset */ | |
| 1592 | /* GOT 15 bits offset. */ | |
| 1593 | HOWTO (R_NDS32_GOT15S2_RELA, /* type */ | |
| 1594 | 2, /* rightshift */ | |
| 1595 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1596 | 15, /* bitsize */ | |
| 1597 | FALSE, /* pc_relative */ | |
| 1598 | 0, /* bitpos */ | |
| 1599 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1600 | bfd_elf_generic_reloc, /* special_function */ | |
| 1601 | "R_NDS32_GOT15S2_RELA",/* name */ | |
| 1602 | FALSE, /* partial_inplace */ | |
| 1603 | 0x00007fff, /* src_mask */ | |
| 1604 | 0x00007fff, /* dst_mask */ | |
| 1605 | FALSE), /* pcrel_offset */ | |
| 1606 | /* GOT 17 bits offset. */ | |
| 1607 | HOWTO (R_NDS32_GOT17S2_RELA, /* type */ | |
| 1608 | 2, /* rightshift */ | |
| 1609 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1610 | 17, /* bitsize */ | |
| 1611 | FALSE, /* pc_relative */ | |
| 1612 | 0, /* bitpos */ | |
| 1613 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1614 | bfd_elf_generic_reloc, /* special_function */ | |
| 1615 | "R_NDS32_GOT17S2_RELA",/* name */ | |
| 1616 | FALSE, /* partial_inplace */ | |
| 1617 | 0x0001ffff, /* src_mask */ | |
| 1618 | 0x0001ffff, /* dst_mask */ | |
| 1619 | FALSE), /* pcrel_offset */ | |
| 1620 | /* A 5 bit address. */ | |
| 1621 | HOWTO (R_NDS32_5_RELA, /* type */ | |
| 1622 | 0, /* rightshift */ | |
| 1623 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1624 | 5, /* bitsize */ | |
| 1625 | FALSE, /* pc_relative */ | |
| 1626 | 0, /* bitpos */ | |
| 1627 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1628 | bfd_elf_generic_reloc, /* special_function */ | |
| 1629 | "R_NDS32_5_RELA", /* name */ | |
| 1630 | FALSE, /* partial_inplace */ | |
| 1631 | 0x1f, /* src_mask */ | |
| 1632 | 0x1f, /* dst_mask */ | |
| 1633 | FALSE), /* pcrel_offset */ | |
| 1634 | HOWTO (R_NDS32_10_UPCREL_RELA,/* type */ | |
| 1635 | 1, /* rightshift */ | |
| 1636 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1637 | 9, /* bitsize */ | |
| 1638 | TRUE, /* pc_relative */ | |
| 1639 | 0, /* bitpos */ | |
| 1640 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1641 | bfd_elf_generic_reloc, /* special_function */ | |
| 1642 | "R_NDS32_10_UPCREL_RELA", /* name */ | |
| 1643 | FALSE, /* partial_inplace */ | |
| 1644 | 0x1ff, /* src_mask */ | |
| 1645 | 0x1ff, /* dst_mask */ | |
| 1646 | TRUE), /* pcrel_offset */ | |
| 1647 | HOWTO (R_NDS32_SDA_FP7U2_RELA,/* type */ | |
| 1648 | 2, /* rightshift */ | |
| 1649 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1650 | 7, /* bitsize */ | |
| 1651 | FALSE, /* pc_relative */ | |
| 1652 | 0, /* bitpos */ | |
| 1653 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1654 | bfd_elf_generic_reloc, /* special_function */ | |
| 1655 | "R_NDS32_SDA_FP7U2_RELA", /* name */ | |
| 1656 | FALSE, /* partial_inplace */ | |
| 1657 | 0x0000007f, /* src_mask */ | |
| 1658 | 0x0000007f, /* dst_mask */ | |
| 1659 | FALSE), /* pcrel_offset */ | |
| 1660 | HOWTO (R_NDS32_WORD_9_PCREL_RELA, /* type */ | |
| 1661 | 1, /* rightshift */ | |
| 1662 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1663 | 8, /* bitsize */ | |
| 1664 | TRUE, /* pc_relative */ | |
| 1665 | 0, /* bitpos */ | |
| 1666 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1667 | bfd_elf_generic_reloc, /* special_function */ | |
| 1668 | "R_NDS32_WORD_9_PCREL_RELA", /* name */ | |
| 1669 | FALSE, /* partial_inplace */ | |
| 1670 | 0xff, /* src_mask */ | |
| 1671 | 0xff, /* dst_mask */ | |
| 1672 | TRUE), /* pcrel_offset */ | |
| 1673 | HOWTO (R_NDS32_25_ABS_RELA, /* type */ | |
| 1674 | 1, /* rightshift */ | |
| 1675 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1676 | 24, /* bitsize */ | |
| 1677 | FALSE, /* pc_relative */ | |
| 1678 | 0, /* bitpos */ | |
| 1679 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1680 | bfd_elf_generic_reloc, /* special_function */ | |
| 1681 | "R_NDS32_25_ABS_RELA", /* name */ | |
| 1682 | FALSE, /* partial_inplace */ | |
| 1683 | 0xffffff, /* src_mask */ | |
| 1684 | 0xffffff, /* dst_mask */ | |
| 1685 | FALSE), /* pcrel_offset */ | |
| 1686 | ||
| 1687 | /* A relative 17 bit relocation for ifc, right shifted by 1. */ | |
| 1688 | HOWTO (R_NDS32_17IFC_PCREL_RELA, /* type */ | |
| 1689 | 1, /* rightshift */ | |
| 1690 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1691 | 16, /* bitsize */ | |
| 1692 | TRUE, /* pc_relative */ | |
| 1693 | 0, /* bitpos */ | |
| 1694 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1695 | bfd_elf_generic_reloc, /* special_function */ | |
| 1696 | "R_NDS32_17IFC_PCREL_RELA", /* name */ | |
| 1697 | FALSE, /* partial_inplace */ | |
| 1698 | 0xffff, /* src_mask */ | |
| 1699 | 0xffff, /* dst_mask */ | |
| 1700 | TRUE), /* pcrel_offset */ | |
| 1701 | ||
| 1702 | /* A relative unsigned 10 bit relocation for ifc, right shifted by 1. */ | |
| 1703 | HOWTO (R_NDS32_10IFCU_PCREL_RELA, /* type */ | |
| 1704 | 1, /* rightshift */ | |
| 1705 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1706 | 9, /* bitsize */ | |
| 1707 | TRUE, /* pc_relative */ | |
| 1708 | 0, /* bitpos */ | |
| 1709 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1710 | bfd_elf_generic_reloc, /* special_function */ | |
| 1711 | "R_NDS32_10IFCU_PCREL_RELA", /* name */ | |
| 1712 | FALSE, /* partial_inplace */ | |
| 1713 | 0x1ff, /* src_mask */ | |
| 1714 | 0x1ff, /* dst_mask */ | |
| 1715 | TRUE), /* pcrel_offset */ | |
| 1c8f6a4d KLC |
1716 | |
| 1717 | /* Like R_NDS32_HI20, but referring to the TLS entry for the symbol. */ | |
| 1718 | HOWTO (R_NDS32_TLS_LE_HI20, /* type */ | |
| 1719 | 12, /* rightshift */ | |
| 1720 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1721 | 20, /* bitsize */ | |
| 1722 | FALSE, /* pc_relative */ | |
| 1723 | 0, /* bitpos */ | |
| 1724 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1725 | bfd_elf_generic_reloc, /* special_function */ | |
| 1726 | "R_NDS32_TLS_LE_HI20", /* name */ | |
| 1727 | FALSE, /* partial_inplace */ | |
| 1728 | 0x000fffff, /* src_mask */ | |
| 1729 | 0x000fffff, /* dst_mask */ | |
| 1730 | FALSE), /* pcrel_offset */ | |
| 1731 | HOWTO (R_NDS32_TLS_LE_LO12, /* type */ | |
| 1732 | 0, /* rightshift */ | |
| 1733 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1734 | 12, /* bitsize */ | |
| 1735 | FALSE, /* pc_relative */ | |
| 1736 | 0, /* bitpos */ | |
| 1737 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1738 | bfd_elf_generic_reloc, /* special_function */ | |
| 1739 | "R_NDS32_TLS_LE_LO12", /* name */ | |
| 1740 | FALSE, /* partial_inplace */ | |
| 1741 | 0x00000fff, /* src_mask */ | |
| 1742 | 0x00000fff, /* dst_mask */ | |
| 1743 | FALSE), /* pcrel_offset */ | |
| 1744 | ||
| 1745 | /* Like R_NDS32_HI20, but referring to the TLS entry for the symbol. */ | |
| 1746 | HOWTO (R_NDS32_TLS_IE_HI20, /* type */ | |
| 1747 | 12, /* rightshift */ | |
| 1748 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1749 | 20, /* bitsize */ | |
| 1750 | FALSE, /* pc_relative */ | |
| 1751 | 0, /* bitpos */ | |
| 1752 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1753 | bfd_elf_generic_reloc, /* special_function */ | |
| 1754 | "R_NDS32_TLS_IE_HI20", /* name */ | |
| 1755 | FALSE, /* partial_inplace */ | |
| 1756 | 0x000fffff, /* src_mask */ | |
| 1757 | 0x000fffff, /* dst_mask */ | |
| 1758 | FALSE), /* pcrel_offset */ | |
| 1759 | HOWTO (R_NDS32_TLS_IE_LO12S2, /* type */ | |
| 1760 | 2, /* rightshift */ | |
| 1761 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1762 | 10, /* bitsize */ | |
| 1763 | FALSE, /* pc_relative */ | |
| 1764 | 0, /* bitpos */ | |
| 1765 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1766 | bfd_elf_generic_reloc, /* special_function */ | |
| 1767 | "R_NDS32_TLS_IE_LO12S2", /* name */ | |
| 1768 | FALSE, /* partial_inplace */ | |
| 1769 | 0x000003ff, /* src_mask */ | |
| 1770 | 0x000003ff, /* dst_mask */ | |
| 1771 | FALSE), /* pcrel_offset */ | |
| 1772 | /* Mark a TLS IE entry in GOT. */ | |
| 1773 | HOWTO (R_NDS32_TLS_TPOFF, /* type */ | |
| 1774 | 0, /* rightshift */ | |
| 1775 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1776 | 32, /* bitsize */ | |
| 1777 | FALSE, /* pc_relative */ | |
| 1778 | 0, /* bitpos */ | |
| 1779 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 1780 | bfd_elf_generic_reloc, /* special_function */ | |
| 1781 | "R_NDS32_TLS_TPOFF", /* name */ | |
| 1782 | FALSE, /* partial_inplace */ | |
| 1783 | 0xffffffff, /* src_mask */ | |
| 1784 | 0xffffffff, /* dst_mask */ | |
| 1785 | FALSE), /* pcrel_offset */ | |
| 1786 | /* A 20 bit address. */ | |
| 1787 | HOWTO (R_NDS32_TLS_LE_20, /* type */ | |
| 1788 | 0, /* rightshift */ | |
| 1789 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1790 | 20, /* bitsize */ | |
| 1791 | FALSE, /* pc_relative */ | |
| 1792 | 0, /* bitpos */ | |
| 1793 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1794 | bfd_elf_generic_reloc, /* special_function */ | |
| 1795 | "R_NDS32_TLS_LE_20", /* name */ | |
| 1796 | FALSE, /* partial_inplace */ | |
| 1797 | 0xfffff, /* src_mask */ | |
| 1798 | 0xfffff, /* dst_mask */ | |
| 1799 | FALSE), /* pcrel_offset */ | |
| 1800 | HOWTO (R_NDS32_TLS_LE_15S0, /* type */ | |
| 1801 | 0, /* rightshift */ | |
| 1802 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1803 | 15, /* bitsize */ | |
| 1804 | FALSE, /* pc_relative */ | |
| 1805 | 0, /* bitpos */ | |
| 1806 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1807 | bfd_elf_generic_reloc, /* special_function */ | |
| 1808 | "R_NDS32_TLS_LE_15S0", /* name */ | |
| 1809 | FALSE, /* partial_inplace */ | |
| 1810 | 0x7fff, /* src_mask */ | |
| 1811 | 0x7fff, /* dst_mask */ | |
| 1812 | FALSE), /* pcrel_offset */ | |
| 1813 | HOWTO (R_NDS32_TLS_LE_15S1, /* type */ | |
| 1814 | 1, /* rightshift */ | |
| 1815 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1816 | 15, /* bitsize */ | |
| 1817 | FALSE, /* pc_relative */ | |
| 1818 | 0, /* bitpos */ | |
| 1819 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1820 | bfd_elf_generic_reloc, /* special_function */ | |
| 1821 | "R_NDS32_TLS_LE_15S1", /* name */ | |
| 1822 | FALSE, /* partial_inplace */ | |
| 1823 | 0x7fff, /* src_mask */ | |
| 1824 | 0x7fff, /* dst_mask */ | |
| 1825 | FALSE), /* pcrel_offset */ | |
| 1826 | HOWTO (R_NDS32_TLS_LE_15S2, /* type */ | |
| 1827 | 2, /* rightshift */ | |
| 1828 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1829 | 15, /* bitsize */ | |
| 1830 | FALSE, /* pc_relative */ | |
| 1831 | 0, /* bitpos */ | |
| 1832 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1833 | bfd_elf_generic_reloc, /* special_function */ | |
| 1834 | "R_NDS32_TLS_LE_15S2", /* name */ | |
| 1835 | FALSE, /* partial_inplace */ | |
| 1836 | 0x7fff, /* src_mask */ | |
| 1837 | 0x7fff, /* dst_mask */ | |
| 1838 | FALSE), /* pcrel_offset */ | |
| 1839 | ||
| 1840 | /* Relax hint for unconditional call sequence */ | |
| 1841 | HOWTO (R_NDS32_LONGCALL4, /* type */ | |
| 1842 | 0, /* rightshift */ | |
| 1843 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1844 | 32, /* bitsize */ | |
| 1845 | FALSE, /* pc_relative */ | |
| 1846 | 0, /* bitpos */ | |
| 1847 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1848 | nds32_elf_ignore_reloc, /* special_function */ | |
| 1849 | "R_NDS32_LONGCALL4", /* name */ | |
| 1850 | FALSE, /* partial_inplace */ | |
| 1851 | 0xffffffff, /* src_mask */ | |
| 1852 | 0xffffffff, /* dst_mask */ | |
| 1853 | FALSE), /* pcrel_offset */ | |
| 1854 | ||
| 1855 | /* Relax hint for conditional call sequence. */ | |
| 1856 | HOWTO (R_NDS32_LONGCALL5, /* type */ | |
| 1857 | 0, /* rightshift */ | |
| 1858 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1859 | 32, /* bitsize */ | |
| 1860 | FALSE, /* pc_relative */ | |
| 1861 | 0, /* bitpos */ | |
| 1862 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1863 | nds32_elf_ignore_reloc, /* special_function */ | |
| 1864 | "R_NDS32_LONGCALL5", /* name */ | |
| 1865 | FALSE, /* partial_inplace */ | |
| 1866 | 0xffffffff, /* src_mask */ | |
| 1867 | 0xffffffff, /* dst_mask */ | |
| 1868 | FALSE), /* pcrel_offset */ | |
| 1869 | ||
| 1870 | /* Relax hint for conditional call sequence. */ | |
| 1871 | HOWTO (R_NDS32_LONGCALL6, /* type */ | |
| 1872 | 0, /* rightshift */ | |
| 1873 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1874 | 32, /* bitsize */ | |
| 1875 | FALSE, /* pc_relative */ | |
| 1876 | 0, /* bitpos */ | |
| 1877 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1878 | nds32_elf_ignore_reloc, /* special_function */ | |
| 1879 | "R_NDS32_LONGCALL6", /* name */ | |
| 1880 | FALSE, /* partial_inplace */ | |
| 1881 | 0xffffffff, /* src_mask */ | |
| 1882 | 0xffffffff, /* dst_mask */ | |
| 1883 | FALSE), /* pcrel_offset */ | |
| 1884 | ||
| 1885 | /* Relax hint for unconditional branch sequence. */ | |
| 1886 | HOWTO (R_NDS32_LONGJUMP4, /* type */ | |
| 1887 | 0, /* rightshift */ | |
| 1888 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1889 | 32, /* bitsize */ | |
| 1890 | FALSE, /* pc_relative */ | |
| 1891 | 0, /* bitpos */ | |
| 1892 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1893 | nds32_elf_ignore_reloc, /* special_function */ | |
| 1894 | "R_NDS32_LONGJUMP4", /* name */ | |
| 1895 | FALSE, /* partial_inplace */ | |
| 1896 | 0xffffffff, /* src_mask */ | |
| 1897 | 0xffffffff, /* dst_mask */ | |
| 1898 | FALSE), /* pcrel_offset */ | |
| 1899 | ||
| 1900 | /* Relax hint for conditional branch sequence. */ | |
| 1901 | HOWTO (R_NDS32_LONGJUMP5, /* type */ | |
| 1902 | 0, /* rightshift */ | |
| 1903 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1904 | 32, /* bitsize */ | |
| 1905 | FALSE, /* pc_relative */ | |
| 1906 | 0, /* bitpos */ | |
| 1907 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1908 | nds32_elf_ignore_reloc, /* special_function */ | |
| 1909 | "R_NDS32_LONGJUMP5", /* name */ | |
| 1910 | FALSE, /* partial_inplace */ | |
| 1911 | 0xffffffff, /* src_mask */ | |
| 1912 | 0xffffffff, /* dst_mask */ | |
| 1913 | FALSE), /* pcrel_offset */ | |
| 1914 | ||
| 1915 | /* Relax hint for conditional branch sequence. */ | |
| 1916 | HOWTO (R_NDS32_LONGJUMP6, /* type */ | |
| 1917 | 0, /* rightshift */ | |
| 1918 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1919 | 32, /* bitsize */ | |
| 1920 | FALSE, /* pc_relative */ | |
| 1921 | 0, /* bitpos */ | |
| 1922 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1923 | nds32_elf_ignore_reloc, /* special_function */ | |
| 1924 | "R_NDS32_LONGJUMP6", /* name */ | |
| 1925 | FALSE, /* partial_inplace */ | |
| 1926 | 0xffffffff, /* src_mask */ | |
| 1927 | 0xffffffff, /* dst_mask */ | |
| 1928 | FALSE), /* pcrel_offset */ | |
| 1929 | ||
| 1930 | /* Relax hint for conditional branch sequence. */ | |
| 1931 | HOWTO (R_NDS32_LONGJUMP7, /* type */ | |
| 1932 | 0, /* rightshift */ | |
| 1933 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1934 | 32, /* bitsize */ | |
| 1935 | FALSE, /* pc_relative */ | |
| 1936 | 0, /* bitpos */ | |
| 1937 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1938 | nds32_elf_ignore_reloc, /* special_function */ | |
| 1939 | "R_NDS32_LONGJUMP7", /* name */ | |
| 1940 | FALSE, /* partial_inplace */ | |
| 1941 | 0xffffffff, /* src_mask */ | |
| 1942 | 0xffffffff, /* dst_mask */ | |
| 1943 | FALSE), /* pcrel_offset */ | |
| 35c08157 KLC |
1944 | }; |
| 1945 | ||
| 1946 | /* Relocations used for relaxation. */ | |
| 1947 | static reloc_howto_type nds32_elf_relax_howto_table[] = | |
| 1948 | { | |
| 1949 | HOWTO (R_NDS32_RELAX_ENTRY, /* type */ | |
| 1950 | 0, /* rightshift */ | |
| 1951 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1952 | 32, /* bitsize */ | |
| 1953 | FALSE, /* pc_relative */ | |
| 1954 | 0, /* bitpos */ | |
| 1955 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1956 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1957 | "R_NDS32_RELAX_ENTRY", /* name */ | |
| 1958 | FALSE, /* partial_inplace */ | |
| 1959 | 0xffffffff, /* src_mask */ | |
| 1960 | 0xffffffff, /* dst_mask */ | |
| 1961 | FALSE), /* pcrel_offset */ | |
| 1962 | HOWTO (R_NDS32_GOT_SUFF, /* type */ | |
| 1963 | 0, /* rightshift */ | |
| 1964 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1965 | 32, /* bitsize */ | |
| 1966 | FALSE, /* pc_relative */ | |
| 1967 | 0, /* bitpos */ | |
| 1968 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1969 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1970 | "R_NDS32_GOT_SUFF", /* name */ | |
| 1971 | FALSE, /* partial_inplace */ | |
| 1972 | 0xffffffff, /* src_mask */ | |
| 1973 | 0xffffffff, /* dst_mask */ | |
| 1974 | FALSE), /* pcrel_offset */ | |
| 1975 | HOWTO (R_NDS32_GOTOFF_SUFF, /* type */ | |
| 1976 | 0, /* rightshift */ | |
| 1977 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1978 | 32, /* bitsize */ | |
| 1979 | FALSE, /* pc_relative */ | |
| 1980 | 0, /* bitpos */ | |
| 1981 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 1982 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1983 | "R_NDS32_GOTOFF_SUFF", /* name */ | |
| 1984 | FALSE, /* partial_inplace */ | |
| 1985 | 0xffffffff, /* src_mask */ | |
| 1986 | 0xffffffff, /* dst_mask */ | |
| 1987 | FALSE), /* pcrel_offset */ | |
| 1988 | HOWTO (R_NDS32_PLT_GOT_SUFF, /* type */ | |
| 1989 | 0, /* rightshift */ | |
| 1990 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1991 | 32, /* bitsize */ | |
| 1992 | FALSE, /* pc_relative */ | |
| 1993 | 0, /* bitpos */ | |
| 1994 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1995 | nds32_elf_ignore_reloc,/* special_function */ | |
| 1996 | "R_NDS32_PLT_GOT_SUFF",/* name */ | |
| 1997 | FALSE, /* partial_inplace */ | |
| 1998 | 0xffffffff, /* src_mask */ | |
| 1999 | 0xffffffff, /* dst_mask */ | |
| 2000 | FALSE), /* pcrel_offset */ | |
| 2001 | HOWTO (R_NDS32_MULCALL_SUFF, /* type */ | |
| 2002 | 0, /* rightshift */ | |
| 2003 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2004 | 32, /* bitsize */ | |
| 2005 | FALSE, /* pc_relative */ | |
| 2006 | 0, /* bitpos */ | |
| 2007 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2008 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2009 | "R_NDS32_MULCALL_SUFF",/* name */ | |
| 2010 | FALSE, /* partial_inplace */ | |
| 2011 | 0xffffffff, /* src_mask */ | |
| 2012 | 0xffffffff, /* dst_mask */ | |
| 2013 | FALSE), /* pcrel_offset */ | |
| 2014 | HOWTO (R_NDS32_PTR, /* type */ | |
| 2015 | 0, /* rightshift */ | |
| 2016 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2017 | 32, /* bitsize */ | |
| 2018 | FALSE, /* pc_relative */ | |
| 2019 | 0, /* bitpos */ | |
| 2020 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2021 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2022 | "R_NDS32_PTR", /* name */ | |
| 2023 | FALSE, /* partial_inplace */ | |
| 2024 | 0xffffffff, /* src_mask */ | |
| 2025 | 0xffffffff, /* dst_mask */ | |
| 2026 | FALSE), /* pcrel_offset */ | |
| 2027 | HOWTO (R_NDS32_PTR_COUNT, /* type */ | |
| 2028 | 0, /* rightshift */ | |
| 2029 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2030 | 32, /* bitsize */ | |
| 2031 | FALSE, /* pc_relative */ | |
| 2032 | 0, /* bitpos */ | |
| 2033 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2034 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2035 | "R_NDS32_PTR_COUNT", /* name */ | |
| 2036 | FALSE, /* partial_inplace */ | |
| 2037 | 0xffffffff, /* src_mask */ | |
| 2038 | 0xffffffff, /* dst_mask */ | |
| 2039 | FALSE), /* pcrel_offset */ | |
| 2040 | HOWTO (R_NDS32_PTR_RESOLVED, /* type */ | |
| 2041 | 0, /* rightshift */ | |
| 2042 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2043 | 32, /* bitsize */ | |
| 2044 | FALSE, /* pc_relative */ | |
| 2045 | 0, /* bitpos */ | |
| 2046 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2047 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2048 | "R_NDS32_PTR_RESOLVED",/* name */ | |
| 2049 | FALSE, /* partial_inplace */ | |
| 2050 | 0xffffffff, /* src_mask */ | |
| 2051 | 0xffffffff, /* dst_mask */ | |
| 2052 | FALSE), /* pcrel_offset */ | |
| 2053 | HOWTO (R_NDS32_PLTBLOCK, /* type */ | |
| 2054 | 0, /* rightshift */ | |
| 2055 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2056 | 32, /* bitsize */ | |
| 2057 | FALSE, /* pc_relative */ | |
| 2058 | 0, /* bitpos */ | |
| 2059 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2060 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2061 | "R_NDS32_PLTBLOCK", /* name */ | |
| 2062 | FALSE, /* partial_inplace */ | |
| 2063 | 0xffffffff, /* src_mask */ | |
| 2064 | 0xffffffff, /* dst_mask */ | |
| 2065 | FALSE), /* pcrel_offset */ | |
| 2066 | HOWTO (R_NDS32_RELAX_REGION_BEGIN, /* type */ | |
| 2067 | 0, /* rightshift */ | |
| 2068 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2069 | 32, /* bitsize */ | |
| 2070 | FALSE, /* pc_relative */ | |
| 2071 | 0, /* bitpos */ | |
| 2072 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2073 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2074 | "R_NDS32_RELAX_REGION_BEGIN", /* name */ | |
| 2075 | FALSE, /* partial_inplace */ | |
| 2076 | 0xffffffff, /* src_mask */ | |
| 2077 | 0xffffffff, /* dst_mask */ | |
| 2078 | FALSE), /* pcrel_offset */ | |
| 2079 | HOWTO (R_NDS32_RELAX_REGION_END, /* type */ | |
| 2080 | 0, /* rightshift */ | |
| 2081 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2082 | 32, /* bitsize */ | |
| 2083 | FALSE, /* pc_relative */ | |
| 2084 | 0, /* bitpos */ | |
| 2085 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2086 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2087 | "R_NDS32_RELAX_REGION_END", /* name */ | |
| 2088 | FALSE, /* partial_inplace */ | |
| 2089 | 0xffffffff, /* src_mask */ | |
| 2090 | 0xffffffff, /* dst_mask */ | |
| 2091 | FALSE), /* pcrel_offset */ | |
| 2092 | HOWTO (R_NDS32_MINUEND, /* type */ | |
| 2093 | 0, /* rightshift */ | |
| 2094 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2095 | 32, /* bitsize */ | |
| 2096 | FALSE, /* pc_relative */ | |
| 2097 | 0, /* bitpos */ | |
| 2098 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2099 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2100 | "R_NDS32_MINUEND", /* name */ | |
| 2101 | FALSE, /* partial_inplace */ | |
| 2102 | 0xffffffff, /* src_mask */ | |
| 2103 | 0xffffffff, /* dst_mask */ | |
| 2104 | FALSE), /* pcrel_offset */ | |
| 2105 | HOWTO (R_NDS32_SUBTRAHEND, /* type */ | |
| 2106 | 0, /* rightshift */ | |
| 2107 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2108 | 32, /* bitsize */ | |
| 2109 | FALSE, /* pc_relative */ | |
| 2110 | 0, /* bitpos */ | |
| 2111 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2112 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2113 | "R_NDS32_SUBTRAHEND", /* name */ | |
| 2114 | FALSE, /* partial_inplace */ | |
| 2115 | 0xffffffff, /* src_mask */ | |
| 2116 | 0xffffffff, /* dst_mask */ | |
| 2117 | FALSE), /* pcrel_offset */ | |
| 2118 | HOWTO (R_NDS32_DIFF8, /* type */ | |
| 2119 | 0, /* rightshift */ | |
| 2120 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2121 | 8, /* bitsize */ | |
| 2122 | FALSE, /* pc_relative */ | |
| 2123 | 0, /* bitpos */ | |
| 2124 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2125 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2126 | "R_NDS32_DIFF8", /* name */ | |
| 2127 | FALSE, /* partial_inplace */ | |
| 2128 | 0x000000ff, /* src_mask */ | |
| 2129 | 0x000000ff, /* dst_mask */ | |
| 2130 | FALSE), /* pcrel_offset */ | |
| 2131 | HOWTO (R_NDS32_DIFF16, /* type */ | |
| 2132 | 0, /* rightshift */ | |
| 2133 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2134 | 16, /* bitsize */ | |
| 2135 | FALSE, /* pc_relative */ | |
| 2136 | 0, /* bitpos */ | |
| 2137 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2138 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2139 | "R_NDS32_DIFF16", /* name */ | |
| 2140 | FALSE, /* partial_inplace */ | |
| 2141 | 0x0000ffff, /* src_mask */ | |
| 2142 | 0x0000ffff, /* dst_mask */ | |
| 2143 | FALSE), /* pcrel_offset */ | |
| 2144 | HOWTO (R_NDS32_DIFF32, /* type */ | |
| 2145 | 0, /* rightshift */ | |
| 2146 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2147 | 32, /* bitsize */ | |
| 2148 | FALSE, /* pc_relative */ | |
| 2149 | 0, /* bitpos */ | |
| 2150 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2151 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2152 | "R_NDS32_DIFF32", /* name */ | |
| 2153 | FALSE, /* partial_inplace */ | |
| 2154 | 0xffffffff, /* src_mask */ | |
| 2155 | 0xffffffff, /* dst_mask */ | |
| 2156 | FALSE), /* pcrel_offset */ | |
| 2157 | HOWTO (R_NDS32_DIFF_ULEB128, /* type */ | |
| 2158 | 0, /* rightshift */ | |
| 2159 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2160 | 0, /* bitsize */ | |
| 2161 | FALSE, /* pc_relative */ | |
| 2162 | 0, /* bitpos */ | |
| 2163 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2164 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2165 | "R_NDS32_DIFF_ULEB128",/* name */ | |
| 2166 | FALSE, /* partial_inplace */ | |
| 2167 | 0xffffffff, /* src_mask */ | |
| 2168 | 0xffffffff, /* dst_mask */ | |
| 2169 | FALSE), /* pcrel_offset */ | |
| 2170 | HOWTO (R_NDS32_DATA, /* type */ | |
| 2171 | 0, /* rightshift */ | |
| 2172 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2173 | 32, /* bitsize */ | |
| 2174 | FALSE, /* pc_relative */ | |
| 2175 | 0, /* bitpos */ | |
| 2176 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2177 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2178 | "R_NDS32_DATA", /* name */ | |
| 2179 | FALSE, /* partial_inplace */ | |
| 2180 | 0xffffffff, /* src_mask */ | |
| 2181 | 0xffffffff, /* dst_mask */ | |
| 2182 | FALSE), /* pcrel_offset */ | |
| 2183 | HOWTO (R_NDS32_TRAN, /* type */ | |
| 2184 | 0, /* rightshift */ | |
| 2185 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2186 | 32, /* bitsize */ | |
| 2187 | FALSE, /* pc_relative */ | |
| 2188 | 0, /* bitpos */ | |
| 2189 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2190 | nds32_elf_ignore_reloc,/* special_function */ | |
| 2191 | "R_NDS32_TRAN", /* name */ | |
| 2192 | FALSE, /* partial_inplace */ | |
| 2193 | 0xffffffff, /* src_mask */ | |
| 2194 | 0xffffffff, /* dst_mask */ | |
| 2195 | FALSE), /* pcrel_offset */ | |
| 1c8f6a4d KLC |
2196 | HOWTO (R_NDS32_TLS_LE_ADD, /* type */ |
| 2197 | 0, /* rightshift */ | |
| 2198 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2199 | 32, /* bitsize */ | |
| 2200 | FALSE, /* pc_relative */ | |
| 2201 | 0, /* bitpos */ | |
| 2202 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2203 | nds32_elf_ignore_reloc, /* special_function */ | |
| 2204 | "R_NDS32_TLS_LE_ADD", /* name */ | |
| 2205 | FALSE, /* partial_inplace */ | |
| 2206 | 0xffffffff, /* src_mask */ | |
| 2207 | 0xffffffff, /* dst_mask */ | |
| 2208 | FALSE), /* pcrel_offset */ | |
| 2209 | HOWTO (R_NDS32_TLS_LE_LS, /* type */ | |
| 2210 | 0, /* rightshift */ | |
| 2211 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2212 | 32, /* bitsize */ | |
| 2213 | FALSE, /* pc_relative */ | |
| 2214 | 0, /* bitpos */ | |
| 2215 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2216 | nds32_elf_ignore_reloc, /* special_function */ | |
| 2217 | "R_NDS32_TLS_LE_LS", /* name */ | |
| 2218 | FALSE, /* partial_inplace */ | |
| 2219 | 0xffffffff, /* src_mask */ | |
| 2220 | 0xffffffff, /* dst_mask */ | |
| 2221 | FALSE), /* pcrel_offset */ | |
| 2222 | HOWTO (R_NDS32_EMPTY, /* type */ | |
| 2223 | 0, /* rightshift */ | |
| 2224 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2225 | 32, /* bitsize */ | |
| 2226 | FALSE, /* pc_relative */ | |
| 2227 | 0, /* bitpos */ | |
| 2228 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2229 | nds32_elf_ignore_reloc, /* special_function */ | |
| 2230 | "R_NDS32_EMPTY", /* name */ | |
| 2231 | FALSE, /* partial_inplace */ | |
| 2232 | 0xffffffff, /* src_mask */ | |
| 2233 | 0xffffffff, /* dst_mask */ | |
| 2234 | FALSE), /* pcrel_offset */ | |
| 35c08157 KLC |
2235 | }; |
| 2236 | ||
| 2237 | \f | |
| 2238 | /* nds32_insertion_sort sorts an array with nmemb elements of size size. | |
| 2239 | This prototype is the same as qsort (). */ | |
| 2240 | ||
| 2241 | void | |
| 2242 | nds32_insertion_sort (void *base, size_t nmemb, size_t size, | |
| 2243 | int (*compar) (const void *lhs, const void *rhs)) | |
| 2244 | { | |
| 2245 | char *ptr = (char *) base; | |
| 1c8f6a4d | 2246 | int i, j; |
| e1fa0163 | 2247 | char *tmp = xmalloc (size); |
| 35c08157 KLC |
2248 | |
| 2249 | /* If i is less than j, i is inserted before j. | |
| 2250 | ||
| 2251 | |---- j ----- i --------------| | |
| 2252 | \ / \ / | |
| 2253 | sorted unsorted | |
| 2254 | */ | |
| 2255 | ||
| 1c8f6a4d | 2256 | for (i = 1; i < (int) nmemb; i++) |
| 35c08157 | 2257 | { |
| 1c8f6a4d KLC |
2258 | for (j = (i - 1); j >= 0; j--) |
| 2259 | if (compar (ptr + i * size, ptr + j * size) >= 0) | |
| 35c08157 KLC |
2260 | break; |
| 2261 | ||
| 1c8f6a4d KLC |
2262 | j++; |
| 2263 | ||
| 35c08157 | 2264 | if (i == j) |
| 1c8f6a4d | 2265 | continue; /* i is in order. */ |
| 35c08157 KLC |
2266 | |
| 2267 | memcpy (tmp, ptr + i * size, size); | |
| 2268 | memmove (ptr + (j + 1) * size, ptr + j * size, (i - j) * size); | |
| 2269 | memcpy (ptr + j * size, tmp, size); | |
| 2270 | } | |
| e1fa0163 | 2271 | free (tmp); |
| 35c08157 KLC |
2272 | } |
| 2273 | ||
| 2274 | /* Sort relocation by r_offset. | |
| 2275 | ||
| 2276 | We didn't use qsort () in stdlib, because quick-sort is not a stable sorting | |
| 2277 | algorithm. Relocations at the same r_offset must keep their order. | |
| 2278 | For example, RELAX_ENTRY must be the very first relocation entry. | |
| 2279 | ||
| 2280 | Currently, this function implements insertion-sort. | |
| 2281 | ||
| 2282 | FIXME: If we already sort them in assembler, why bother sort them | |
| 2283 | here again? */ | |
| 2284 | ||
| 2285 | static int | |
| 2286 | compar_reloc (const void *lhs, const void *rhs) | |
| 2287 | { | |
| 2288 | const Elf_Internal_Rela *l = (const Elf_Internal_Rela *) lhs; | |
| 2289 | const Elf_Internal_Rela *r = (const Elf_Internal_Rela *) rhs; | |
| 2290 | ||
| 2291 | if (l->r_offset > r->r_offset) | |
| 2292 | return 1; | |
| 2293 | else if (l->r_offset == r->r_offset) | |
| 2294 | return 0; | |
| 2295 | else | |
| 2296 | return -1; | |
| 2297 | } | |
| 2298 | ||
| 2299 | /* Functions listed below are only used for old relocs. | |
| 2300 | * nds32_elf_9_pcrel_reloc | |
| 2301 | * nds32_elf_do_9_pcrel_reloc | |
| 2302 | * nds32_elf_hi20_reloc | |
| 2303 | * nds32_elf_relocate_hi20 | |
| 2304 | * nds32_elf_lo12_reloc | |
| 2305 | * nds32_elf_sda15_reloc | |
| 2306 | * nds32_elf_generic_reloc | |
| 2307 | */ | |
| 2308 | ||
| 2309 | /* Handle the R_NDS32_9_PCREL & R_NDS32_9_PCREL_RELA reloc. */ | |
| 2310 | ||
| 2311 | static bfd_reloc_status_type | |
| 2312 | nds32_elf_9_pcrel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2313 | void *data, asection *input_section, bfd *output_bfd, | |
| 2314 | char **error_message ATTRIBUTE_UNUSED) | |
| 2315 | { | |
| 2316 | /* This part is from bfd_elf_generic_reloc. */ | |
| 2317 | if (output_bfd != (bfd *) NULL | |
| 2318 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
| 2319 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
| 2320 | { | |
| 2321 | reloc_entry->address += input_section->output_offset; | |
| 2322 | return bfd_reloc_ok; | |
| 2323 | } | |
| 2324 | ||
| 2325 | if (output_bfd != NULL) | |
| 2326 | { | |
| 2327 | /* FIXME: See bfd_perform_relocation. Is this right? */ | |
| 2328 | return bfd_reloc_continue; | |
| 2329 | } | |
| 2330 | ||
| 2331 | return nds32_elf_do_9_pcrel_reloc (abfd, reloc_entry->howto, | |
| 2332 | input_section, | |
| 2333 | data, reloc_entry->address, | |
| 2334 | symbol->section, | |
| 2335 | (symbol->value | |
| 2336 | + symbol->section->output_section->vma | |
| 2337 | + symbol->section->output_offset), | |
| 2338 | reloc_entry->addend); | |
| 2339 | } | |
| 2340 | ||
| 2341 | /* Utility to actually perform an R_NDS32_9_PCREL reloc. */ | |
| 2342 | #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1) | |
| 2343 | ||
| 2344 | static bfd_reloc_status_type | |
| 2345 | nds32_elf_do_9_pcrel_reloc (bfd *abfd, reloc_howto_type *howto, | |
| 2346 | asection *input_section, bfd_byte *data, | |
| 1c8f6a4d KLC |
2347 | bfd_vma offset, |
| 2348 | asection *symbol_section ATTRIBUTE_UNUSED, | |
| 35c08157 KLC |
2349 | bfd_vma symbol_value, bfd_vma addend) |
| 2350 | { | |
| 2351 | bfd_signed_vma relocation; | |
| 2352 | unsigned short x; | |
| 2353 | bfd_reloc_status_type status; | |
| 2354 | ||
| 2355 | /* Sanity check the address (offset in section). */ | |
| 2356 | if (offset > bfd_get_section_limit (abfd, input_section)) | |
| 2357 | return bfd_reloc_outofrange; | |
| 2358 | ||
| 2359 | relocation = symbol_value + addend; | |
| 2360 | /* Make it pc relative. */ | |
| 2361 | relocation -= (input_section->output_section->vma | |
| 2362 | + input_section->output_offset); | |
| 2363 | /* These jumps mask off the lower two bits of the current address | |
| 2364 | before doing pcrel calculations. */ | |
| 2365 | relocation -= (offset & -(bfd_vma) 2); | |
| 2366 | ||
| 1c8f6a4d | 2367 | if (relocation < -ACCURATE_8BIT_S1 || relocation >= ACCURATE_8BIT_S1) |
| 35c08157 KLC |
2368 | status = bfd_reloc_overflow; |
| 2369 | else | |
| 2370 | status = bfd_reloc_ok; | |
| 2371 | ||
| 2372 | x = bfd_getb16 (data + offset); | |
| 2373 | ||
| 2374 | relocation >>= howto->rightshift; | |
| 2375 | relocation <<= howto->bitpos; | |
| 2376 | x = (x & ~howto->dst_mask) | |
| 2377 | | (((x & howto->src_mask) + relocation) & howto->dst_mask); | |
| 2378 | ||
| 2379 | bfd_putb16 ((bfd_vma) x, data + offset); | |
| 2380 | ||
| 2381 | return status; | |
| 2382 | } | |
| 2383 | ||
| 2384 | /* Handle the R_NDS32_HI20_[SU]LO relocs. | |
| 2385 | HI20_SLO is for the add3 and load/store with displacement instructions. | |
| 2386 | HI20 is for the or3 instruction. | |
| 2387 | For R_NDS32_HI20_SLO, the lower 16 bits are sign extended when added to | |
| 2388 | the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then | |
| 2389 | we must add one to the high 16 bytes (which will get subtracted off when | |
| 2390 | the low 16 bits are added). | |
| 2391 | These relocs have to be done in combination with an R_NDS32_LO12 reloc | |
| 2392 | because there is a carry from the LO12 to the HI20. Here we just save | |
| 2393 | the information we need; we do the actual relocation when we see the LO12. | |
| 2394 | This code is copied from the elf32-mips.c. We also support an arbitrary | |
| 2395 | number of HI20 relocs to be associated with a single LO12 reloc. The | |
| 2396 | assembler sorts the relocs to ensure each HI20 immediately precedes its | |
| 2397 | LO12. However if there are multiple copies, the assembler may not find | |
| 2398 | the real LO12 so it picks the first one it finds. */ | |
| 2399 | ||
| 2400 | struct nds32_hi20 | |
| 2401 | { | |
| 2402 | struct nds32_hi20 *next; | |
| 2403 | bfd_byte *addr; | |
| 2404 | bfd_vma addend; | |
| 2405 | }; | |
| 2406 | ||
| 2407 | static struct nds32_hi20 *nds32_hi20_list; | |
| 2408 | ||
| 2409 | static bfd_reloc_status_type | |
| 2410 | nds32_elf_hi20_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, | |
| 2411 | asymbol *symbol, void *data, asection *input_section, | |
| 2412 | bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED) | |
| 2413 | { | |
| 2414 | bfd_reloc_status_type ret; | |
| 2415 | bfd_vma relocation; | |
| 2416 | struct nds32_hi20 *n; | |
| 2417 | ||
| 2418 | /* This part is from bfd_elf_generic_reloc. | |
| 2419 | If we're relocating, and this an external symbol, we don't want | |
| 2420 | to change anything. */ | |
| 2421 | if (output_bfd != (bfd *) NULL | |
| 2422 | && (symbol->flags & BSF_SECTION_SYM) == 0 && reloc_entry->addend == 0) | |
| 2423 | { | |
| 2424 | reloc_entry->address += input_section->output_offset; | |
| 2425 | return bfd_reloc_ok; | |
| 2426 | } | |
| 2427 | ||
| 2428 | /* Sanity check the address (offset in section). */ | |
| 2429 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
| 2430 | return bfd_reloc_outofrange; | |
| 2431 | ||
| 2432 | ret = bfd_reloc_ok; | |
| 2433 | if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL) | |
| 2434 | ret = bfd_reloc_undefined; | |
| 2435 | ||
| 2436 | if (bfd_is_com_section (symbol->section)) | |
| 2437 | relocation = 0; | |
| 2438 | else | |
| 2439 | relocation = symbol->value; | |
| 2440 | ||
| 2441 | relocation += symbol->section->output_section->vma; | |
| 2442 | relocation += symbol->section->output_offset; | |
| 2443 | relocation += reloc_entry->addend; | |
| 2444 | ||
| 2445 | /* Save the information, and let LO12 do the actual relocation. */ | |
| 2446 | n = (struct nds32_hi20 *) bfd_malloc ((bfd_size_type) sizeof *n); | |
| 2447 | if (n == NULL) | |
| 2448 | return bfd_reloc_outofrange; | |
| 2449 | ||
| 2450 | n->addr = (bfd_byte *) data + reloc_entry->address; | |
| 2451 | n->addend = relocation; | |
| 2452 | n->next = nds32_hi20_list; | |
| 2453 | nds32_hi20_list = n; | |
| 2454 | ||
| 2455 | if (output_bfd != (bfd *) NULL) | |
| 2456 | reloc_entry->address += input_section->output_offset; | |
| 2457 | ||
| 2458 | return ret; | |
| 2459 | } | |
| 2460 | ||
| 2461 | /* Handle an NDS32 ELF HI20 reloc. */ | |
| 2462 | ||
| 2463 | static void | |
| 2464 | nds32_elf_relocate_hi20 (bfd *input_bfd ATTRIBUTE_UNUSED, | |
| 2465 | int type ATTRIBUTE_UNUSED, Elf_Internal_Rela *relhi, | |
| 2466 | Elf_Internal_Rela *rello, bfd_byte *contents, | |
| 2467 | bfd_vma addend) | |
| 2468 | { | |
| 2469 | unsigned long insn; | |
| 2470 | bfd_vma addlo; | |
| 2471 | ||
| 2472 | insn = bfd_getb32 (contents + relhi->r_offset); | |
| 2473 | ||
| 2474 | addlo = bfd_getb32 (contents + rello->r_offset); | |
| 2475 | addlo &= 0xfff; | |
| 2476 | ||
| 2477 | addend += ((insn & 0xfffff) << 20) + addlo; | |
| 2478 | ||
| 2479 | insn = (insn & 0xfff00000) | ((addend >> 12) & 0xfffff); | |
| 2480 | bfd_putb32 (insn, contents + relhi->r_offset); | |
| 2481 | } | |
| 2482 | ||
| 2483 | /* Do an R_NDS32_LO12 relocation. This is a straightforward 12 bit | |
| 2484 | inplace relocation; this function exists in order to do the | |
| 2485 | R_NDS32_HI20_[SU]LO relocation described above. */ | |
| 2486 | ||
| 2487 | static bfd_reloc_status_type | |
| 2488 | nds32_elf_lo12_reloc (bfd *input_bfd, arelent *reloc_entry, asymbol *symbol, | |
| 2489 | void *data, asection *input_section, bfd *output_bfd, | |
| 2490 | char **error_message) | |
| 2491 | { | |
| 2492 | /* This part is from bfd_elf_generic_reloc. | |
| 2493 | If we're relocating, and this an external symbol, we don't want | |
| 2494 | to change anything. */ | |
| 2495 | if (output_bfd != NULL && (symbol->flags & BSF_SECTION_SYM) == 0 | |
| 2496 | && reloc_entry->addend == 0) | |
| 2497 | { | |
| 2498 | reloc_entry->address += input_section->output_offset; | |
| 2499 | return bfd_reloc_ok; | |
| 2500 | } | |
| 2501 | ||
| 2502 | if (nds32_hi20_list != NULL) | |
| 2503 | { | |
| 2504 | struct nds32_hi20 *l; | |
| 2505 | ||
| 2506 | l = nds32_hi20_list; | |
| 2507 | while (l != NULL) | |
| 2508 | { | |
| 2509 | unsigned long insn; | |
| 2510 | unsigned long val; | |
| 2511 | unsigned long vallo; | |
| 2512 | struct nds32_hi20 *next; | |
| 2513 | ||
| 2514 | /* Do the HI20 relocation. Note that we actually don't need | |
| 2515 | to know anything about the LO12 itself, except where to | |
| 2516 | find the low 12 bits of the addend needed by the LO12. */ | |
| 2517 | insn = bfd_getb32 (l->addr); | |
| 2518 | vallo = bfd_getb32 ((bfd_byte *) data + reloc_entry->address); | |
| 2519 | vallo &= 0xfff; | |
| 2520 | switch (reloc_entry->howto->type) | |
| 2521 | { | |
| 2522 | case R_NDS32_LO12S3: | |
| 2523 | vallo <<= 3; | |
| 2524 | break; | |
| 2525 | ||
| 2526 | case R_NDS32_LO12S2: | |
| 2527 | vallo <<= 2; | |
| 2528 | break; | |
| 2529 | ||
| 2530 | case R_NDS32_LO12S1: | |
| 2531 | vallo <<= 1; | |
| 2532 | break; | |
| 2533 | ||
| 2534 | case R_NDS32_LO12S0: | |
| 2535 | vallo <<= 0; | |
| 2536 | break; | |
| 2537 | } | |
| 2538 | ||
| 2539 | val = ((insn & 0xfffff) << 12) + vallo; | |
| 2540 | val += l->addend; | |
| 2541 | ||
| 2542 | insn = (insn & ~(bfd_vma) 0xfffff) | ((val >> 12) & 0xfffff); | |
| 2543 | bfd_putb32 ((bfd_vma) insn, l->addr); | |
| 2544 | ||
| 2545 | next = l->next; | |
| 2546 | free (l); | |
| 2547 | l = next; | |
| 2548 | } | |
| 2549 | ||
| 2550 | nds32_hi20_list = NULL; | |
| 2551 | } | |
| 2552 | ||
| 2553 | /* Now do the LO12 reloc in the usual way. | |
| 2554 | ??? It would be nice to call bfd_elf_generic_reloc here, | |
| 2555 | but we have partial_inplace set. bfd_elf_generic_reloc will | |
| 2556 | pass the handling back to bfd_install_relocation which will install | |
| 2557 | a section relative addend which is wrong. */ | |
| 2558 | return nds32_elf_generic_reloc (input_bfd, reloc_entry, symbol, data, | |
| 2559 | input_section, output_bfd, error_message); | |
| 2560 | } | |
| 2561 | ||
| 2562 | /* Do generic partial_inplace relocation. | |
| 2563 | This is a local replacement for bfd_elf_generic_reloc. */ | |
| 2564 | ||
| 2565 | static bfd_reloc_status_type | |
| 2566 | nds32_elf_generic_reloc (bfd *input_bfd, arelent *reloc_entry, | |
| 2567 | asymbol *symbol, void *data, asection *input_section, | |
| 2568 | bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED) | |
| 2569 | { | |
| 2570 | bfd_reloc_status_type ret; | |
| 2571 | bfd_vma relocation; | |
| 2572 | bfd_byte *inplace_address; | |
| 2573 | ||
| 2574 | /* This part is from bfd_elf_generic_reloc. | |
| 2575 | If we're relocating, and this an external symbol, we don't want | |
| 2576 | to change anything. */ | |
| 2577 | if (output_bfd != NULL && (symbol->flags & BSF_SECTION_SYM) == 0 | |
| 2578 | && reloc_entry->addend == 0) | |
| 2579 | { | |
| 2580 | reloc_entry->address += input_section->output_offset; | |
| 2581 | return bfd_reloc_ok; | |
| 2582 | } | |
| 2583 | ||
| 2584 | /* Now do the reloc in the usual way. | |
| 2585 | ??? It would be nice to call bfd_elf_generic_reloc here, | |
| 2586 | but we have partial_inplace set. bfd_elf_generic_reloc will | |
| 2587 | pass the handling back to bfd_install_relocation which will install | |
| 2588 | a section relative addend which is wrong. */ | |
| 2589 | ||
| 2590 | /* Sanity check the address (offset in section). */ | |
| 2591 | if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section)) | |
| 2592 | return bfd_reloc_outofrange; | |
| 2593 | ||
| 2594 | ret = bfd_reloc_ok; | |
| 2595 | if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL) | |
| 2596 | ret = bfd_reloc_undefined; | |
| 2597 | ||
| 2598 | if (bfd_is_com_section (symbol->section) || output_bfd != (bfd *) NULL) | |
| 2599 | relocation = 0; | |
| 2600 | else | |
| 2601 | relocation = symbol->value; | |
| 2602 | ||
| 2603 | /* Only do this for a final link. */ | |
| 2604 | if (output_bfd == (bfd *) NULL) | |
| 2605 | { | |
| 2606 | relocation += symbol->section->output_section->vma; | |
| 2607 | relocation += symbol->section->output_offset; | |
| 2608 | } | |
| 2609 | ||
| 2610 | relocation += reloc_entry->addend; | |
| 2611 | switch (reloc_entry->howto->type) | |
| 2612 | { | |
| 2613 | case R_NDS32_LO12S3: | |
| 2614 | relocation >>= 3; | |
| 2615 | break; | |
| 2616 | ||
| 2617 | case R_NDS32_LO12S2: | |
| 2618 | relocation >>= 2; | |
| 2619 | break; | |
| 2620 | ||
| 2621 | case R_NDS32_LO12S1: | |
| 2622 | relocation >>= 1; | |
| 2623 | break; | |
| 2624 | ||
| 2625 | case R_NDS32_LO12S0: | |
| 2626 | default: | |
| 2627 | relocation >>= 0; | |
| 2628 | break; | |
| 2629 | } | |
| 2630 | ||
| 2631 | inplace_address = (bfd_byte *) data + reloc_entry->address; | |
| 2632 | ||
| 2633 | #define DOIT(x) \ | |
| 2634 | x = ((x & ~reloc_entry->howto->dst_mask) | \ | |
| 2635 | (((x & reloc_entry->howto->src_mask) + relocation) & \ | |
| 2636 | reloc_entry->howto->dst_mask)) | |
| 2637 | ||
| 2638 | switch (reloc_entry->howto->size) | |
| 2639 | { | |
| 2640 | case 1: | |
| 2641 | { | |
| 2642 | short x = bfd_getb16 (inplace_address); | |
| 2643 | ||
| 2644 | DOIT (x); | |
| 2645 | bfd_putb16 ((bfd_vma) x, inplace_address); | |
| 2646 | } | |
| 2647 | break; | |
| 2648 | case 2: | |
| 2649 | { | |
| 2650 | unsigned long x = bfd_getb32 (inplace_address); | |
| 2651 | ||
| 2652 | DOIT (x); | |
| 2653 | bfd_putb32 ((bfd_vma) x, inplace_address); | |
| 2654 | } | |
| 2655 | break; | |
| 2656 | default: | |
| 2657 | BFD_ASSERT (0); | |
| 2658 | } | |
| 2659 | ||
| 2660 | if (output_bfd != (bfd *) NULL) | |
| 2661 | reloc_entry->address += input_section->output_offset; | |
| 2662 | ||
| 2663 | return ret; | |
| 2664 | } | |
| 2665 | ||
| 2666 | /* Handle the R_NDS32_SDA15 reloc. | |
| 2667 | This reloc is used to compute the address of objects in the small data area | |
| 2668 | and to perform loads and stores from that area. | |
| 2669 | The lower 15 bits are sign extended and added to the register specified | |
| 2670 | in the instruction, which is assumed to point to _SDA_BASE_. | |
| 2671 | ||
| 2672 | Since the lower 15 bits offset is left-shifted 0, 1 or 2 bits depending on | |
| 2673 | the access size, this must be taken care of. */ | |
| 2674 | ||
| 2675 | static bfd_reloc_status_type | |
| 2676 | nds32_elf_sda15_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, | |
| 2677 | asymbol *symbol, void *data ATTRIBUTE_UNUSED, | |
| 2678 | asection *input_section, bfd *output_bfd, | |
| 2679 | char **error_message ATTRIBUTE_UNUSED) | |
| 2680 | { | |
| 2681 | /* This part is from bfd_elf_generic_reloc. */ | |
| 2682 | if (output_bfd != (bfd *) NULL | |
| 2683 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
| 2684 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
| 2685 | { | |
| 2686 | reloc_entry->address += input_section->output_offset; | |
| 2687 | return bfd_reloc_ok; | |
| 2688 | } | |
| 2689 | ||
| 2690 | if (output_bfd != NULL) | |
| 2691 | { | |
| 2692 | /* FIXME: See bfd_perform_relocation. Is this right? */ | |
| 2693 | return bfd_reloc_continue; | |
| 2694 | } | |
| 2695 | ||
| 2696 | /* FIXME: not sure what to do here yet. But then again, the linker | |
| 2697 | may never call us. */ | |
| 2698 | abort (); | |
| 2699 | } | |
| 2700 | ||
| 2701 | /* nds32_elf_ignore_reloc is the special function for | |
| 2702 | relocation types which don't need to be relocated | |
| 2703 | like relaxation relocation types. | |
| 2704 | This function simply return bfd_reloc_ok when it is | |
| 2705 | invoked. */ | |
| 2706 | ||
| 2707 | static bfd_reloc_status_type | |
| 2708 | nds32_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, | |
| 2709 | asymbol *symbol ATTRIBUTE_UNUSED, | |
| 2710 | void *data ATTRIBUTE_UNUSED, asection *input_section, | |
| 2711 | bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED) | |
| 2712 | { | |
| 2713 | if (output_bfd != NULL) | |
| 2714 | reloc_entry->address += input_section->output_offset; | |
| 2715 | ||
| 2716 | return bfd_reloc_ok; | |
| 2717 | } | |
| 2718 | \f | |
| 2719 | ||
| 2720 | /* Map BFD reloc types to NDS32 ELF reloc types. */ | |
| 2721 | ||
| 2722 | struct nds32_reloc_map_entry | |
| 2723 | { | |
| 2724 | bfd_reloc_code_real_type bfd_reloc_val; | |
| 2725 | unsigned char elf_reloc_val; | |
| 2726 | }; | |
| 2727 | ||
| 2728 | static const struct nds32_reloc_map_entry nds32_reloc_map[] = | |
| 2729 | { | |
| 2730 | {BFD_RELOC_NONE, R_NDS32_NONE}, | |
| 2731 | {BFD_RELOC_16, R_NDS32_16_RELA}, | |
| 2732 | {BFD_RELOC_32, R_NDS32_32_RELA}, | |
| 2733 | {BFD_RELOC_NDS32_20, R_NDS32_20_RELA}, | |
| 2734 | {BFD_RELOC_NDS32_5, R_NDS32_5_RELA}, | |
| 2735 | {BFD_RELOC_NDS32_9_PCREL, R_NDS32_9_PCREL_RELA}, | |
| 2736 | {BFD_RELOC_NDS32_WORD_9_PCREL, R_NDS32_WORD_9_PCREL_RELA}, | |
| 2737 | {BFD_RELOC_NDS32_15_PCREL, R_NDS32_15_PCREL_RELA}, | |
| 2738 | {BFD_RELOC_NDS32_17_PCREL, R_NDS32_17_PCREL_RELA}, | |
| 2739 | {BFD_RELOC_NDS32_25_PCREL, R_NDS32_25_PCREL_RELA}, | |
| 2740 | {BFD_RELOC_NDS32_10_UPCREL, R_NDS32_10_UPCREL_RELA}, | |
| 2741 | {BFD_RELOC_NDS32_HI20, R_NDS32_HI20_RELA}, | |
| 2742 | {BFD_RELOC_NDS32_LO12S3, R_NDS32_LO12S3_RELA}, | |
| 2743 | {BFD_RELOC_NDS32_LO12S2, R_NDS32_LO12S2_RELA}, | |
| 2744 | {BFD_RELOC_NDS32_LO12S1, R_NDS32_LO12S1_RELA}, | |
| 2745 | {BFD_RELOC_NDS32_LO12S0, R_NDS32_LO12S0_RELA}, | |
| 2746 | {BFD_RELOC_NDS32_LO12S0_ORI, R_NDS32_LO12S0_ORI_RELA}, | |
| 2747 | {BFD_RELOC_NDS32_SDA15S3, R_NDS32_SDA15S3_RELA}, | |
| 2748 | {BFD_RELOC_NDS32_SDA15S2, R_NDS32_SDA15S2_RELA}, | |
| 2749 | {BFD_RELOC_NDS32_SDA15S1, R_NDS32_SDA15S1_RELA}, | |
| 2750 | {BFD_RELOC_NDS32_SDA15S0, R_NDS32_SDA15S0_RELA}, | |
| 2751 | {BFD_RELOC_VTABLE_INHERIT, R_NDS32_RELA_GNU_VTINHERIT}, | |
| 2752 | {BFD_RELOC_VTABLE_ENTRY, R_NDS32_RELA_GNU_VTENTRY}, | |
| 2753 | ||
| 2754 | {BFD_RELOC_NDS32_GOT20, R_NDS32_GOT20}, | |
| 2755 | {BFD_RELOC_NDS32_9_PLTREL, R_NDS32_9_PLTREL}, | |
| 2756 | {BFD_RELOC_NDS32_25_PLTREL, R_NDS32_25_PLTREL}, | |
| 2757 | {BFD_RELOC_NDS32_COPY, R_NDS32_COPY}, | |
| 2758 | {BFD_RELOC_NDS32_GLOB_DAT, R_NDS32_GLOB_DAT}, | |
| 2759 | {BFD_RELOC_NDS32_JMP_SLOT, R_NDS32_JMP_SLOT}, | |
| 2760 | {BFD_RELOC_NDS32_RELATIVE, R_NDS32_RELATIVE}, | |
| 2761 | {BFD_RELOC_NDS32_GOTOFF, R_NDS32_GOTOFF}, | |
| 2762 | {BFD_RELOC_NDS32_GOTPC20, R_NDS32_GOTPC20}, | |
| 2763 | {BFD_RELOC_NDS32_GOT_HI20, R_NDS32_GOT_HI20}, | |
| 2764 | {BFD_RELOC_NDS32_GOT_LO12, R_NDS32_GOT_LO12}, | |
| 2765 | {BFD_RELOC_NDS32_GOT_LO15, R_NDS32_GOT_LO15}, | |
| 2766 | {BFD_RELOC_NDS32_GOT_LO19, R_NDS32_GOT_LO19}, | |
| 2767 | {BFD_RELOC_NDS32_GOTPC_HI20, R_NDS32_GOTPC_HI20}, | |
| 2768 | {BFD_RELOC_NDS32_GOTPC_LO12, R_NDS32_GOTPC_LO12}, | |
| 2769 | {BFD_RELOC_NDS32_GOTOFF_HI20, R_NDS32_GOTOFF_HI20}, | |
| 2770 | {BFD_RELOC_NDS32_GOTOFF_LO12, R_NDS32_GOTOFF_LO12}, | |
| 2771 | {BFD_RELOC_NDS32_GOTOFF_LO15, R_NDS32_GOTOFF_LO15}, | |
| 2772 | {BFD_RELOC_NDS32_GOTOFF_LO19, R_NDS32_GOTOFF_LO19}, | |
| 2773 | {BFD_RELOC_NDS32_INSN16, R_NDS32_INSN16}, | |
| 2774 | {BFD_RELOC_NDS32_LABEL, R_NDS32_LABEL}, | |
| 2775 | {BFD_RELOC_NDS32_LONGCALL1, R_NDS32_LONGCALL1}, | |
| 2776 | {BFD_RELOC_NDS32_LONGCALL2, R_NDS32_LONGCALL2}, | |
| 2777 | {BFD_RELOC_NDS32_LONGCALL3, R_NDS32_LONGCALL3}, | |
| 1c8f6a4d KLC |
2778 | {BFD_RELOC_NDS32_LONGCALL4, R_NDS32_LONGCALL4}, |
| 2779 | {BFD_RELOC_NDS32_LONGCALL5, R_NDS32_LONGCALL5}, | |
| 2780 | {BFD_RELOC_NDS32_LONGCALL6, R_NDS32_LONGCALL6}, | |
| 35c08157 KLC |
2781 | {BFD_RELOC_NDS32_LONGJUMP1, R_NDS32_LONGJUMP1}, |
| 2782 | {BFD_RELOC_NDS32_LONGJUMP2, R_NDS32_LONGJUMP2}, | |
| 2783 | {BFD_RELOC_NDS32_LONGJUMP3, R_NDS32_LONGJUMP3}, | |
| 1c8f6a4d KLC |
2784 | {BFD_RELOC_NDS32_LONGJUMP4, R_NDS32_LONGJUMP4}, |
| 2785 | {BFD_RELOC_NDS32_LONGJUMP5, R_NDS32_LONGJUMP5}, | |
| 2786 | {BFD_RELOC_NDS32_LONGJUMP6, R_NDS32_LONGJUMP6}, | |
| 2787 | {BFD_RELOC_NDS32_LONGJUMP7, R_NDS32_LONGJUMP7}, | |
| 35c08157 KLC |
2788 | {BFD_RELOC_NDS32_LOADSTORE, R_NDS32_LOADSTORE}, |
| 2789 | {BFD_RELOC_NDS32_9_FIXED, R_NDS32_9_FIXED_RELA}, | |
| 2790 | {BFD_RELOC_NDS32_15_FIXED, R_NDS32_15_FIXED_RELA}, | |
| 2791 | {BFD_RELOC_NDS32_17_FIXED, R_NDS32_17_FIXED_RELA}, | |
| 2792 | {BFD_RELOC_NDS32_25_FIXED, R_NDS32_25_FIXED_RELA}, | |
| 2793 | {BFD_RELOC_NDS32_PLTREL_HI20, R_NDS32_PLTREL_HI20}, | |
| 2794 | {BFD_RELOC_NDS32_PLTREL_LO12, R_NDS32_PLTREL_LO12}, | |
| 2795 | {BFD_RELOC_NDS32_PLT_GOTREL_HI20, R_NDS32_PLT_GOTREL_HI20}, | |
| 2796 | {BFD_RELOC_NDS32_PLT_GOTREL_LO12, R_NDS32_PLT_GOTREL_LO12}, | |
| 2797 | {BFD_RELOC_NDS32_PLT_GOTREL_LO15, R_NDS32_PLT_GOTREL_LO15}, | |
| 2798 | {BFD_RELOC_NDS32_PLT_GOTREL_LO19, R_NDS32_PLT_GOTREL_LO19}, | |
| 2799 | {BFD_RELOC_NDS32_PLT_GOTREL_LO20, R_NDS32_PLT_GOTREL_LO20}, | |
| 2800 | {BFD_RELOC_NDS32_SDA12S2_DP, R_NDS32_SDA12S2_DP_RELA}, | |
| 2801 | {BFD_RELOC_NDS32_SDA12S2_SP, R_NDS32_SDA12S2_SP_RELA}, | |
| 2802 | {BFD_RELOC_NDS32_LO12S2_DP, R_NDS32_LO12S2_DP_RELA}, | |
| 2803 | {BFD_RELOC_NDS32_LO12S2_SP, R_NDS32_LO12S2_SP_RELA}, | |
| 2804 | {BFD_RELOC_NDS32_SDA16S3, R_NDS32_SDA16S3_RELA}, | |
| 2805 | {BFD_RELOC_NDS32_SDA17S2, R_NDS32_SDA17S2_RELA}, | |
| 2806 | {BFD_RELOC_NDS32_SDA18S1, R_NDS32_SDA18S1_RELA}, | |
| 2807 | {BFD_RELOC_NDS32_SDA19S0, R_NDS32_SDA19S0_RELA}, | |
| 2808 | {BFD_RELOC_NDS32_SDA_FP7U2_RELA, R_NDS32_SDA_FP7U2_RELA}, | |
| 2809 | {BFD_RELOC_NDS32_DWARF2_OP1, R_NDS32_DWARF2_OP1_RELA}, | |
| 2810 | {BFD_RELOC_NDS32_DWARF2_OP2, R_NDS32_DWARF2_OP2_RELA}, | |
| 2811 | {BFD_RELOC_NDS32_DWARF2_LEB, R_NDS32_DWARF2_LEB_RELA}, | |
| 2812 | {BFD_RELOC_NDS32_UPDATE_TA, R_NDS32_UPDATE_TA_RELA}, | |
| 2813 | {BFD_RELOC_NDS32_GOT_SUFF, R_NDS32_GOT_SUFF}, | |
| 2814 | {BFD_RELOC_NDS32_GOTOFF_SUFF, R_NDS32_GOTOFF_SUFF}, | |
| 2815 | {BFD_RELOC_NDS32_GOT15S2, R_NDS32_GOT15S2_RELA}, | |
| 2816 | {BFD_RELOC_NDS32_GOT17S2, R_NDS32_GOT17S2_RELA}, | |
| 2817 | {BFD_RELOC_NDS32_PTR, R_NDS32_PTR}, | |
| 2818 | {BFD_RELOC_NDS32_PTR_COUNT, R_NDS32_PTR_COUNT}, | |
| 2819 | {BFD_RELOC_NDS32_PLT_GOT_SUFF, R_NDS32_PLT_GOT_SUFF}, | |
| 2820 | {BFD_RELOC_NDS32_PTR_RESOLVED, R_NDS32_PTR_RESOLVED}, | |
| 2821 | {BFD_RELOC_NDS32_RELAX_ENTRY, R_NDS32_RELAX_ENTRY}, | |
| 2822 | {BFD_RELOC_NDS32_MULCALL_SUFF, R_NDS32_MULCALL_SUFF}, | |
| 2823 | {BFD_RELOC_NDS32_PLTBLOCK, R_NDS32_PLTBLOCK}, | |
| 2824 | {BFD_RELOC_NDS32_RELAX_REGION_BEGIN, R_NDS32_RELAX_REGION_BEGIN}, | |
| 2825 | {BFD_RELOC_NDS32_RELAX_REGION_END, R_NDS32_RELAX_REGION_END}, | |
| 2826 | {BFD_RELOC_NDS32_MINUEND, R_NDS32_MINUEND}, | |
| 2827 | {BFD_RELOC_NDS32_SUBTRAHEND, R_NDS32_SUBTRAHEND}, | |
| 1c8f6a4d | 2828 | {BFD_RELOC_NDS32_EMPTY, R_NDS32_EMPTY}, |
| 35c08157 KLC |
2829 | |
| 2830 | {BFD_RELOC_NDS32_DIFF8, R_NDS32_DIFF8}, | |
| 2831 | {BFD_RELOC_NDS32_DIFF16, R_NDS32_DIFF16}, | |
| 2832 | {BFD_RELOC_NDS32_DIFF32, R_NDS32_DIFF32}, | |
| 2833 | {BFD_RELOC_NDS32_DIFF_ULEB128, R_NDS32_DIFF_ULEB128}, | |
| 2834 | {BFD_RELOC_NDS32_25_ABS, R_NDS32_25_ABS_RELA}, | |
| 2835 | {BFD_RELOC_NDS32_DATA, R_NDS32_DATA}, | |
| 2836 | {BFD_RELOC_NDS32_TRAN, R_NDS32_TRAN}, | |
| 2837 | {BFD_RELOC_NDS32_17IFC_PCREL, R_NDS32_17IFC_PCREL_RELA}, | |
| 2838 | {BFD_RELOC_NDS32_10IFCU_PCREL, R_NDS32_10IFCU_PCREL_RELA}, | |
| 1c8f6a4d KLC |
2839 | {BFD_RELOC_NDS32_TLS_LE_HI20, R_NDS32_TLS_LE_HI20}, |
| 2840 | {BFD_RELOC_NDS32_TLS_LE_LO12, R_NDS32_TLS_LE_LO12}, | |
| 2841 | {BFD_RELOC_NDS32_TLS_LE_ADD, R_NDS32_TLS_LE_ADD}, | |
| 2842 | {BFD_RELOC_NDS32_TLS_LE_LS, R_NDS32_TLS_LE_LS}, | |
| 2843 | {BFD_RELOC_NDS32_TLS_IE_HI20, R_NDS32_TLS_IE_HI20}, | |
| 2844 | {BFD_RELOC_NDS32_TLS_IE_LO12S2, R_NDS32_TLS_IE_LO12S2}, | |
| 2845 | {BFD_RELOC_NDS32_TLS_TPOFF, R_NDS32_TLS_TPOFF}, | |
| 2846 | {BFD_RELOC_NDS32_TLS_LE_20, R_NDS32_TLS_LE_20}, | |
| 2847 | {BFD_RELOC_NDS32_TLS_LE_15S0, R_NDS32_TLS_LE_15S0}, | |
| 2848 | {BFD_RELOC_NDS32_TLS_LE_15S1, R_NDS32_TLS_LE_15S1}, | |
| 2849 | {BFD_RELOC_NDS32_TLS_LE_15S2, R_NDS32_TLS_LE_15S2}, | |
| 35c08157 KLC |
2850 | }; |
| 2851 | ||
| 2852 | /* Patch tag. */ | |
| 2853 | ||
| 2854 | static reloc_howto_type * | |
| 2855 | bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2856 | const char *r_name) | |
| 2857 | { | |
| 2858 | unsigned int i; | |
| 2859 | ||
| 2860 | for (i = 0; i < ARRAY_SIZE (nds32_elf_howto_table); i++) | |
| 2861 | if (nds32_elf_howto_table[i].name != NULL | |
| 2862 | && strcasecmp (nds32_elf_howto_table[i].name, r_name) == 0) | |
| 2863 | return &nds32_elf_howto_table[i]; | |
| 2864 | ||
| 2865 | for (i = 0; i < ARRAY_SIZE (nds32_elf_relax_howto_table); i++) | |
| 2866 | if (nds32_elf_relax_howto_table[i].name != NULL | |
| 2867 | && strcasecmp (nds32_elf_relax_howto_table[i].name, r_name) == 0) | |
| 2868 | return &nds32_elf_relax_howto_table[i]; | |
| 2869 | ||
| 2870 | return NULL; | |
| 2871 | } | |
| 2872 | ||
| 2873 | static reloc_howto_type * | |
| 2874 | bfd_elf32_bfd_reloc_type_table_lookup (enum elf_nds32_reloc_type code) | |
| 2875 | { | |
| 2876 | if (code < R_NDS32_RELAX_ENTRY) | |
| 2877 | { | |
| 2878 | BFD_ASSERT (code < ARRAY_SIZE (nds32_elf_howto_table)); | |
| 2879 | return &nds32_elf_howto_table[code]; | |
| 2880 | } | |
| 2881 | else | |
| 2882 | { | |
| 2883 | BFD_ASSERT ((size_t) (code - R_NDS32_RELAX_ENTRY) | |
| 2884 | < ARRAY_SIZE (nds32_elf_relax_howto_table)); | |
| 2885 | return &nds32_elf_relax_howto_table[code - R_NDS32_RELAX_ENTRY]; | |
| 2886 | } | |
| 2887 | } | |
| 2888 | ||
| 2889 | static reloc_howto_type * | |
| 2890 | bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2891 | bfd_reloc_code_real_type code) | |
| 2892 | { | |
| 2893 | unsigned int i; | |
| 2894 | ||
| 2895 | for (i = 0; i < ARRAY_SIZE (nds32_reloc_map); i++) | |
| 2896 | { | |
| 2897 | if (nds32_reloc_map[i].bfd_reloc_val == code) | |
| 2898 | return bfd_elf32_bfd_reloc_type_table_lookup | |
| 2899 | (nds32_reloc_map[i].elf_reloc_val); | |
| 2900 | } | |
| 2901 | ||
| 2902 | return NULL; | |
| 2903 | } | |
| 2904 | ||
| 2905 | /* Set the howto pointer for an NDS32 ELF reloc. */ | |
| 2906 | ||
| 2907 | static void | |
| 2908 | nds32_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, | |
| 2909 | Elf_Internal_Rela *dst) | |
| 2910 | { | |
| 2911 | enum elf_nds32_reloc_type r_type; | |
| 2912 | ||
| 2913 | r_type = ELF32_R_TYPE (dst->r_info); | |
| 5860e3f8 NC |
2914 | if (r_type > R_NDS32_GNU_VTENTRY) |
| 2915 | { | |
| 695344c0 | 2916 | /* xgettext:c-format */ |
| 64d29018 | 2917 | _bfd_error_handler (_("%B: invalid NDS32 reloc number: %d"), abfd, r_type); |
| 5860e3f8 NC |
2918 | r_type = 0; |
| 2919 | } | |
| 35c08157 KLC |
2920 | cache_ptr->howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type); |
| 2921 | } | |
| 2922 | ||
| 2923 | static void | |
| 2924 | nds32_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, | |
| 2925 | Elf_Internal_Rela *dst) | |
| 2926 | { | |
| 2927 | BFD_ASSERT ((ELF32_R_TYPE (dst->r_info) == R_NDS32_NONE) | |
| 2928 | || ((ELF32_R_TYPE (dst->r_info) > R_NDS32_GNU_VTENTRY) | |
| 2929 | && (ELF32_R_TYPE (dst->r_info) < R_NDS32_max))); | |
| 2930 | cache_ptr->howto = bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (dst->r_info)); | |
| 2931 | } | |
| 2932 | ||
| 2933 | /* Support for core dump NOTE sections. | |
| 2934 | Reference to include/linux/elfcore.h in Linux. */ | |
| 2935 | ||
| 2936 | static bfd_boolean | |
| 2937 | nds32_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2938 | { | |
| 2939 | int offset; | |
| 2940 | size_t size; | |
| 2941 | ||
| 2942 | switch (note->descsz) | |
| 2943 | { | |
| 2944 | case 0x114: | |
| 2945 | /* Linux/NDS32 32-bit, ABI1 */ | |
| 2946 | ||
| 2947 | /* pr_cursig */ | |
| 2948 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); | |
| 2949 | ||
| 2950 | /* pr_pid */ | |
| 2951 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24); | |
| 2952 | ||
| 2953 | /* pr_reg */ | |
| 2954 | offset = 72; | |
| 2955 | size = 200; | |
| 2956 | break; | |
| 2957 | ||
| 2958 | case 0xfc: | |
| 2959 | /* Linux/NDS32 32-bit */ | |
| 2960 | ||
| 2961 | /* pr_cursig */ | |
| 2962 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); | |
| 2963 | ||
| 2964 | /* pr_pid */ | |
| 2965 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24); | |
| 2966 | ||
| 2967 | /* pr_reg */ | |
| 2968 | offset = 72; | |
| 2969 | size = 176; | |
| 2970 | break; | |
| 2971 | ||
| 2972 | default: | |
| 2973 | return FALSE; | |
| 2974 | } | |
| 2975 | ||
| 2976 | /* Make a ".reg" section. */ | |
| 2977 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| 2978 | size, note->descpos + offset); | |
| 2979 | } | |
| 2980 | ||
| 2981 | static bfd_boolean | |
| 2982 | nds32_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2983 | { | |
| 2984 | switch (note->descsz) | |
| 2985 | { | |
| 2986 | case 124: | |
| 2987 | /* Linux/NDS32 */ | |
| 2988 | ||
| 2989 | /* __kernel_uid_t, __kernel_gid_t are short on NDS32 platform. */ | |
| 2990 | elf_tdata (abfd)->core->program = | |
| 2991 | _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
| 2992 | elf_tdata (abfd)->core->command = | |
| 2993 | _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
| 2b804145 | 2994 | break; |
| 35c08157 KLC |
2995 | |
| 2996 | default: | |
| 2997 | return FALSE; | |
| 2998 | } | |
| 2999 | ||
| 3000 | /* Note that for some reason, a spurious space is tacked | |
| 3001 | onto the end of the args in some (at least one anyway) | |
| 3002 | implementations, so strip it off if it exists. */ | |
| 3003 | { | |
| 3004 | char *command = elf_tdata (abfd)->core->command; | |
| 3005 | int n = strlen (command); | |
| 3006 | ||
| 3007 | if (0 < n && command[n - 1] == ' ') | |
| 3008 | command[n - 1] = '\0'; | |
| 3009 | } | |
| 3010 | ||
| 3011 | return TRUE; | |
| 3012 | } | |
| 3013 | ||
| 3014 | /* Hook called by the linker routine which adds symbols from an object | |
| 3015 | file. We must handle the special NDS32 section numbers here. | |
| 3016 | We also keep watching for whether we need to create the sdata special | |
| 3017 | linker sections. */ | |
| 3018 | ||
| 3019 | static bfd_boolean | |
| 3020 | nds32_elf_add_symbol_hook (bfd *abfd, | |
| 3021 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
| 3022 | Elf_Internal_Sym *sym, | |
| 3023 | const char **namep ATTRIBUTE_UNUSED, | |
| 3024 | flagword *flagsp ATTRIBUTE_UNUSED, | |
| 3025 | asection **secp, bfd_vma *valp) | |
| 3026 | { | |
| 3027 | switch (sym->st_shndx) | |
| 3028 | { | |
| 3029 | case SHN_COMMON: | |
| 3030 | /* Common symbols less than the GP size are automatically | |
| 3031 | treated as SHN_MIPS_SCOMMON symbols. */ | |
| 3032 | if (sym->st_size > elf_gp_size (abfd) | |
| 3033 | || ELF_ST_TYPE (sym->st_info) == STT_TLS) | |
| 3034 | break; | |
| 3035 | ||
| 3036 | /* st_value is the alignemnt constraint. | |
| 3037 | That might be its actual size if it is an array or structure. */ | |
| 3038 | switch (sym->st_value) | |
| 3039 | { | |
| 3040 | case 1: | |
| 3041 | *secp = bfd_make_section_old_way (abfd, ".scommon_b"); | |
| 3042 | break; | |
| 3043 | case 2: | |
| 3044 | *secp = bfd_make_section_old_way (abfd, ".scommon_h"); | |
| 3045 | break; | |
| 3046 | case 4: | |
| 3047 | *secp = bfd_make_section_old_way (abfd, ".scommon_w"); | |
| 3048 | break; | |
| 3049 | case 8: | |
| 3050 | *secp = bfd_make_section_old_way (abfd, ".scommon_d"); | |
| 3051 | break; | |
| 3052 | default: | |
| 3053 | return TRUE; | |
| 3054 | } | |
| 3055 | ||
| 3056 | (*secp)->flags |= SEC_IS_COMMON; | |
| 3057 | *valp = sym->st_size; | |
| 3058 | break; | |
| 3059 | } | |
| 3060 | ||
| 3061 | return TRUE; | |
| 3062 | } | |
| 3063 | ||
| 3064 | ||
| 3065 | /* This function can figure out the best location for a base register to access | |
| 3066 | data relative to this base register | |
| 3067 | INPUT: | |
| 3068 | sda_d0: size of first DOUBLE WORD data section | |
| 3069 | sda_w0: size of first WORD data section | |
| 3070 | sda_h0: size of first HALF WORD data section | |
| 3071 | sda_b : size of BYTE data section | |
| 3072 | sda_hi: size of second HALF WORD data section | |
| 3073 | sda_w1: size of second WORD data section | |
| 3074 | sda_d1: size of second DOUBLE WORD data section | |
| 3075 | OUTPUT: | |
| 3076 | offset (always positive) from the beginning of sda_d0 if OK | |
| 3077 | a negative error value if fail | |
| 3078 | NOTE: | |
| 3079 | these 7 sections have to be located back to back if exist | |
| 3080 | a pass in 0 value for non-existing section */ | |
| 3081 | ||
| 3082 | /* Due to the interpretation of simm15 field of load/store depending on | |
| 3083 | data accessing size, the organization of base register relative data shall | |
| 3084 | like the following figure | |
| 3085 | ------------------------------------------- | |
| 3086 | | DOUBLE WORD sized data (range +/- 128K) | |
| 3087 | ------------------------------------------- | |
| 3088 | | WORD sized data (range +/- 64K) | |
| 3089 | ------------------------------------------- | |
| 3090 | | HALF WORD sized data (range +/- 32K) | |
| 3091 | ------------------------------------------- | |
| 3092 | | BYTE sized data (range +/- 16K) | |
| 3093 | ------------------------------------------- | |
| 3094 | | HALF WORD sized data (range +/- 32K) | |
| 3095 | ------------------------------------------- | |
| 3096 | | WORD sized data (range +/- 64K) | |
| 3097 | ------------------------------------------- | |
| 3098 | | DOUBLE WORD sized data (range +/- 128K) | |
| 3099 | ------------------------------------------- | |
| 3100 | Its base register shall be set to access these data freely. */ | |
| 3101 | ||
| 3102 | /* We have to figure out the SDA_BASE value, so that we can adjust the | |
| 3103 | symbol value correctly. We look up the symbol _SDA_BASE_ in the output | |
| 3104 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
| 3105 | target data. We don't need to adjust the symbol value for an | |
| 3106 | external symbol if we are producing relocatable output. */ | |
| 3107 | ||
| 3108 | static asection *sda_rela_sec = NULL; | |
| 3109 | ||
| 1c8f6a4d | 3110 | #define SDA_SECTION_NUM 10 |
| 35c08157 KLC |
3111 | |
| 3112 | static bfd_reloc_status_type | |
| 3113 | nds32_elf_final_sda_base (bfd *output_bfd, struct bfd_link_info *info, | |
| 3114 | bfd_vma *psb, bfd_boolean add_symbol) | |
| 3115 | { | |
| 3116 | int relax_fp_as_gp; | |
| 3117 | struct elf_nds32_link_hash_table *table; | |
| 3118 | struct bfd_link_hash_entry *h, *h2; | |
| 1c8f6a4d | 3119 | long unsigned int total = 0; |
| 35c08157 KLC |
3120 | |
| 3121 | h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE); | |
| 3122 | if (!h || (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak)) | |
| 3123 | { | |
| 3124 | asection *first = NULL, *final = NULL, *temp; | |
| 3125 | bfd_vma sda_base; | |
| 3126 | /* The first section must be 4-byte aligned to promise _SDA_BASE_ being | |
| 3127 | 4 byte-aligned. Therefore, it has to set the first section ".data" | |
| 3128 | 4 byte-aligned. */ | |
| 3129 | static const char sec_name[SDA_SECTION_NUM][10] = | |
| 3130 | { | |
| 3131 | ".data", ".got", ".sdata_d", ".sdata_w", ".sdata_h", ".sdata_b", | |
| 1c8f6a4d | 3132 | ".sbss_b", ".sbss_h", ".sbss_w", ".sbss_d" |
| 35c08157 KLC |
3133 | }; |
| 3134 | size_t i = 0; | |
| 3135 | ||
| 3136 | if (output_bfd->sections == NULL) | |
| 3137 | { | |
| 3138 | *psb = elf_gp (output_bfd); | |
| 3139 | return bfd_reloc_ok; | |
| 3140 | } | |
| 3141 | ||
| 3142 | /* Get the first and final section. */ | |
| 1c8f6a4d | 3143 | while (i < sizeof (sec_name) / sizeof (sec_name [0])) |
| 35c08157 KLC |
3144 | { |
| 3145 | temp = bfd_get_section_by_name (output_bfd, sec_name[i]); | |
| 3146 | if (temp && !first && (temp->size != 0 || temp->rawsize != 0)) | |
| 3147 | first = temp; | |
| 3148 | if (temp && (temp->size != 0 || temp->rawsize != 0)) | |
| 3149 | final = temp; | |
| 1c8f6a4d KLC |
3150 | |
| 3151 | /* Summarize the sections in order to check if joining .bss. */ | |
| 3152 | if (temp && temp->size != 0) | |
| 3153 | total += temp->size; | |
| 3154 | else if (temp && temp->rawsize != 0) | |
| 3155 | total += temp->rawsize; | |
| 3156 | ||
| 35c08157 KLC |
3157 | i++; |
| 3158 | } | |
| 3159 | ||
| 1c8f6a4d KLC |
3160 | /* Check .bss size. */ |
| 3161 | temp = bfd_get_section_by_name (output_bfd, ".bss"); | |
| 3162 | if (temp) | |
| 3163 | { | |
| 3164 | if (temp->size != 0) | |
| 3165 | total += temp->size; | |
| 3166 | else if (temp->rawsize != 0) | |
| 3167 | total += temp->rawsize; | |
| 3168 | ||
| 3169 | if (total < 0x80000) | |
| 3170 | { | |
| 3171 | if (!first && (temp->size != 0 || temp->rawsize != 0)) | |
| 3172 | first = temp; | |
| 3173 | if ((temp->size != 0 || temp->rawsize != 0)) | |
| 3174 | final = temp; | |
| 3175 | } | |
| 3176 | } | |
| 3177 | ||
| 35c08157 KLC |
3178 | if (first && final) |
| 3179 | { | |
| 3180 | /* The middle of data region. */ | |
| 1c8f6a4d | 3181 | sda_base = final->vma / 2 + final->rawsize / 2 + first->vma / 2; |
| 35c08157 KLC |
3182 | |
| 3183 | /* Find the section sda_base located. */ | |
| 3184 | i = 0; | |
| 1c8f6a4d | 3185 | while (i < sizeof (sec_name) / sizeof (sec_name [0])) |
| 35c08157 KLC |
3186 | { |
| 3187 | final = bfd_get_section_by_name (output_bfd, sec_name[i]); | |
| 3188 | if (final && (final->size != 0 || final->rawsize != 0) | |
| 3189 | && sda_base >= final->vma) | |
| 3190 | { | |
| 3191 | first = final; | |
| 3192 | i++; | |
| 3193 | } | |
| 3194 | else | |
| 3195 | break; | |
| 3196 | } | |
| 3197 | } | |
| 3198 | else | |
| 3199 | { | |
| 3200 | /* There is not any data section in output bfd, and set _SDA_BASE_ in | |
| 3201 | first output section. */ | |
| 3202 | first = output_bfd->sections; | |
| 3203 | while (first && first->size == 0 && first->rawsize == 0) | |
| 3204 | first = first->next; | |
| 3205 | if (!first) | |
| 3206 | { | |
| 3207 | *psb = elf_gp (output_bfd); | |
| 3208 | return bfd_reloc_ok; | |
| 3209 | } | |
| 1c8f6a4d | 3210 | sda_base = first->vma + first->rawsize; |
| 35c08157 KLC |
3211 | } |
| 3212 | ||
| 3213 | sda_base -= first->vma; | |
| 3214 | sda_base = sda_base & (~7); | |
| 3215 | ||
| 3216 | if (!_bfd_generic_link_add_one_symbol | |
| 3217 | (info, output_bfd, "_SDA_BASE_", BSF_GLOBAL | BSF_WEAK, first, | |
| 3218 | (bfd_vma) sda_base, (const char *) NULL, FALSE, | |
| 3219 | get_elf_backend_data (output_bfd)->collect, &h)) | |
| 3220 | return FALSE; | |
| 3221 | ||
| 3222 | sda_rela_sec = first; | |
| 3223 | ||
| 3224 | table = nds32_elf_hash_table (info); | |
| 3225 | relax_fp_as_gp = table->relax_fp_as_gp; | |
| 3226 | if (relax_fp_as_gp) | |
| 3227 | { | |
| 3228 | h2 = bfd_link_hash_lookup (info->hash, FP_BASE_NAME, | |
| 3229 | FALSE, FALSE, FALSE); | |
| 3230 | /* Define a weak FP_BASE_NAME here to prevent the undefined symbol. | |
| 3231 | And set FP equal to SDA_BASE to do relaxation for | |
| 3232 | la $fp, _FP_BASE_. */ | |
| 3233 | if (!_bfd_generic_link_add_one_symbol | |
| 3234 | (info, output_bfd, FP_BASE_NAME, BSF_GLOBAL | BSF_WEAK, | |
| 3235 | first, (bfd_vma) sda_base, (const char *) NULL, | |
| 3236 | FALSE, get_elf_backend_data (output_bfd)->collect, &h2)) | |
| 3237 | return FALSE; | |
| 3238 | } | |
| 3239 | } | |
| 3240 | ||
| 535b785f | 3241 | if (add_symbol) |
| 35c08157 KLC |
3242 | { |
| 3243 | if (h) | |
| 3244 | { | |
| 3245 | /* Now set gp. */ | |
| 3246 | elf_gp (output_bfd) = (h->u.def.value | |
| 3247 | + h->u.def.section->output_section->vma | |
| 3248 | + h->u.def.section->output_offset); | |
| 3249 | } | |
| 3250 | else | |
| 3251 | { | |
| 4eca0228 | 3252 | _bfd_error_handler (_("error: Can't find symbol: _SDA_BASE_.")); |
| 35c08157 KLC |
3253 | return bfd_reloc_dangerous; |
| 3254 | } | |
| 3255 | } | |
| 3256 | ||
| 3257 | *psb = h->u.def.value + h->u.def.section->output_section->vma | |
| 3258 | + h->u.def.section->output_offset; | |
| 3259 | return bfd_reloc_ok; | |
| 3260 | } | |
| 3261 | \f | |
| 3262 | ||
| 3263 | /* Return size of a PLT entry. */ | |
| 3264 | #define elf_nds32_sizeof_plt(info) PLT_ENTRY_SIZE | |
| 3265 | ||
| 3266 | ||
| 3267 | /* Create an entry in an nds32 ELF linker hash table. */ | |
| 3268 | ||
| 3269 | static struct bfd_hash_entry * | |
| 3270 | nds32_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
| 3271 | struct bfd_hash_table *table, | |
| 3272 | const char *string) | |
| 3273 | { | |
| 3274 | struct elf_nds32_link_hash_entry *ret; | |
| 3275 | ||
| 3276 | ret = (struct elf_nds32_link_hash_entry *) entry; | |
| 3277 | ||
| 3278 | /* Allocate the structure if it has not already been allocated by a | |
| 3279 | subclass. */ | |
| 3280 | if (ret == NULL) | |
| 3281 | ret = (struct elf_nds32_link_hash_entry *) | |
| 3282 | bfd_hash_allocate (table, sizeof (struct elf_nds32_link_hash_entry)); | |
| 3283 | ||
| 3284 | if (ret == NULL) | |
| 3285 | return (struct bfd_hash_entry *) ret; | |
| 3286 | ||
| 3287 | /* Call the allocation method of the superclass. */ | |
| 3288 | ret = (struct elf_nds32_link_hash_entry *) | |
| 3289 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string); | |
| 3290 | ||
| 3291 | if (ret != NULL) | |
| 3292 | { | |
| 3293 | struct elf_nds32_link_hash_entry *eh; | |
| 3294 | ||
| 3295 | eh = (struct elf_nds32_link_hash_entry *) ret; | |
| 3296 | eh->dyn_relocs = NULL; | |
| 1c8f6a4d | 3297 | eh->tls_type = GOT_UNKNOWN; |
| 35c08157 KLC |
3298 | } |
| 3299 | ||
| 3300 | return (struct bfd_hash_entry *) ret; | |
| 3301 | } | |
| 3302 | ||
| 3303 | /* Create an nds32 ELF linker hash table. */ | |
| 3304 | ||
| 3305 | static struct bfd_link_hash_table * | |
| 3306 | nds32_elf_link_hash_table_create (bfd *abfd) | |
| 3307 | { | |
| 3308 | struct elf_nds32_link_hash_table *ret; | |
| 3309 | ||
| 3310 | bfd_size_type amt = sizeof (struct elf_nds32_link_hash_table); | |
| 3311 | ||
| 3312 | ret = (struct elf_nds32_link_hash_table *) bfd_zmalloc (amt); | |
| 3313 | if (ret == NULL) | |
| 3314 | return NULL; | |
| 3315 | ||
| 3316 | /* patch tag. */ | |
| 3317 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, | |
| 3318 | nds32_elf_link_hash_newfunc, | |
| 3319 | sizeof (struct elf_nds32_link_hash_entry), | |
| 3320 | NDS32_ELF_DATA)) | |
| 3321 | { | |
| 3322 | free (ret); | |
| 3323 | return NULL; | |
| 3324 | } | |
| 3325 | ||
| 35c08157 KLC |
3326 | return &ret->root.root; |
| 3327 | } | |
| 3328 | ||
| 35c08157 KLC |
3329 | /* Create dynamic sections when linking against a dynamic object. */ |
| 3330 | ||
| 3331 | static bfd_boolean | |
| 3332 | nds32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
| 3333 | { | |
| 3334 | struct elf_nds32_link_hash_table *htab; | |
| 3335 | flagword flags, pltflags; | |
| 3336 | register asection *s; | |
| 3337 | const struct elf_backend_data *bed; | |
| 3338 | int ptralign = 2; /* 32-bit */ | |
| 3339 | ||
| 3340 | bed = get_elf_backend_data (abfd); | |
| 3341 | ||
| 3342 | htab = nds32_elf_hash_table (info); | |
| 3343 | ||
| 3344 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
| 3345 | .rel[a].bss sections. */ | |
| 3346 | ||
| 3347 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 3348 | | SEC_LINKER_CREATED); | |
| 3349 | ||
| 3350 | pltflags = flags; | |
| 3351 | pltflags |= SEC_CODE; | |
| 3352 | if (bed->plt_not_loaded) | |
| 3353 | pltflags &= ~(SEC_LOAD | SEC_HAS_CONTENTS); | |
| 3354 | if (bed->plt_readonly) | |
| 3355 | pltflags |= SEC_READONLY; | |
| 3356 | ||
| 3357 | s = bfd_make_section (abfd, ".plt"); | |
| ce558b89 | 3358 | htab->root.splt = s; |
| 35c08157 KLC |
3359 | if (s == NULL |
| 3360 | || !bfd_set_section_flags (abfd, s, pltflags) | |
| 3361 | || !bfd_set_section_alignment (abfd, s, bed->plt_alignment)) | |
| 3362 | return FALSE; | |
| 3363 | ||
| 3364 | if (bed->want_plt_sym) | |
| 3365 | { | |
| 3366 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
| 3367 | .plt section. */ | |
| 3368 | struct bfd_link_hash_entry *bh = NULL; | |
| 3369 | struct elf_link_hash_entry *h; | |
| 3370 | ||
| 3371 | if (!(_bfd_generic_link_add_one_symbol | |
| 3372 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, | |
| 3373 | (bfd_vma) 0, (const char *) NULL, FALSE, | |
| 3374 | get_elf_backend_data (abfd)->collect, &bh))) | |
| 3375 | return FALSE; | |
| 3376 | ||
| 3377 | h = (struct elf_link_hash_entry *) bh; | |
| 3378 | h->def_regular = 1; | |
| 3379 | h->type = STT_OBJECT; | |
| 3380 | ||
| 0e1862bb | 3381 | if (bfd_link_pic (info) && !bfd_elf_link_record_dynamic_symbol (info, h)) |
| 35c08157 KLC |
3382 | return FALSE; |
| 3383 | } | |
| 3384 | ||
| 3385 | s = bfd_make_section (abfd, | |
| 3386 | bed->default_use_rela_p ? ".rela.plt" : ".rel.plt"); | |
| ce558b89 | 3387 | htab->root.srelplt = s; |
| 35c08157 KLC |
3388 | if (s == NULL |
| 3389 | || !bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
| 3390 | || !bfd_set_section_alignment (abfd, s, ptralign)) | |
| 3391 | return FALSE; | |
| 3392 | ||
| ce558b89 | 3393 | if (htab->root.sgot == NULL && !_bfd_elf_create_got_section (abfd, info)) |
| 35c08157 KLC |
3394 | return FALSE; |
| 3395 | ||
| 3396 | { | |
| 3397 | const char *secname; | |
| 3398 | char *relname; | |
| 3399 | flagword secflags; | |
| 3400 | asection *sec; | |
| 3401 | ||
| 3402 | for (sec = abfd->sections; sec; sec = sec->next) | |
| 3403 | { | |
| 3404 | secflags = bfd_get_section_flags (abfd, sec); | |
| 3405 | if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) | |
| 3406 | || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) | |
| 3407 | continue; | |
| 3408 | secname = bfd_get_section_name (abfd, sec); | |
| 3409 | relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6); | |
| 3410 | strcpy (relname, ".rela"); | |
| 3411 | strcat (relname, secname); | |
| 3412 | if (bfd_get_section_by_name (abfd, secname)) | |
| 3413 | continue; | |
| 3414 | s = bfd_make_section (abfd, relname); | |
| 3415 | if (s == NULL | |
| 3416 | || !bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
| 3417 | || !bfd_set_section_alignment (abfd, s, ptralign)) | |
| 3418 | return FALSE; | |
| 3419 | } | |
| 3420 | } | |
| 3421 | ||
| 3422 | if (bed->want_dynbss) | |
| 3423 | { | |
| 3424 | /* The .dynbss section is a place to put symbols which are defined | |
| 3425 | by dynamic objects, are referenced by regular objects, and are | |
| 3426 | not functions. We must allocate space for them in the process | |
| 3427 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
| 3428 | initialize them at run time. The linker script puts the .dynbss | |
| 3429 | section into the .bss section of the final image. */ | |
| 3430 | s = bfd_make_section (abfd, ".dynbss"); | |
| 3431 | htab->sdynbss = s; | |
| 3432 | if (s == NULL | |
| 3433 | || !bfd_set_section_flags (abfd, s, SEC_ALLOC | SEC_LINKER_CREATED)) | |
| 3434 | return FALSE; | |
| 3435 | /* The .rel[a].bss section holds copy relocs. This section is not | |
| 3436 | normally needed. We need to create it here, though, so that the | |
| 3437 | linker will map it to an output section. We can't just create it | |
| 3438 | only if we need it, because we will not know whether we need it | |
| 3439 | until we have seen all the input files, and the first time the | |
| 3440 | main linker code calls BFD after examining all the input files | |
| 3441 | (size_dynamic_sections) the input sections have already been | |
| 3442 | mapped to the output sections. If the section turns out not to | |
| 3443 | be needed, we can discard it later. We will never need this | |
| 3444 | section when generating a shared object, since they do not use | |
| 3445 | copy relocs. */ | |
| 0e1862bb | 3446 | if (!bfd_link_pic (info)) |
| 35c08157 KLC |
3447 | { |
| 3448 | s = bfd_make_section (abfd, (bed->default_use_rela_p | |
| 3449 | ? ".rela.bss" : ".rel.bss")); | |
| 3450 | htab->srelbss = s; | |
| 3451 | if (s == NULL | |
| 3452 | || !bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
| 3453 | || !bfd_set_section_alignment (abfd, s, ptralign)) | |
| 3454 | return FALSE; | |
| 3455 | } | |
| 3456 | } | |
| 3457 | ||
| 3458 | return TRUE; | |
| 3459 | } | |
| 3460 | ||
| 3461 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
| 3462 | static void | |
| 3463 | nds32_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
| 3464 | struct elf_link_hash_entry *dir, | |
| 3465 | struct elf_link_hash_entry *ind) | |
| 3466 | { | |
| 3467 | struct elf_nds32_link_hash_entry *edir, *eind; | |
| 3468 | ||
| 3469 | edir = (struct elf_nds32_link_hash_entry *) dir; | |
| 3470 | eind = (struct elf_nds32_link_hash_entry *) ind; | |
| 3471 | ||
| 3472 | if (eind->dyn_relocs != NULL) | |
| 3473 | { | |
| 3474 | if (edir->dyn_relocs != NULL) | |
| 3475 | { | |
| 3476 | struct elf_nds32_dyn_relocs **pp; | |
| 3477 | struct elf_nds32_dyn_relocs *p; | |
| 3478 | ||
| 3479 | if (ind->root.type == bfd_link_hash_indirect) | |
| 3480 | abort (); | |
| 3481 | ||
| 3482 | /* Add reloc counts against the weak sym to the strong sym | |
| 3483 | list. Merge any entries against the same section. */ | |
| 3484 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) | |
| 3485 | { | |
| 3486 | struct elf_nds32_dyn_relocs *q; | |
| 3487 | ||
| 3488 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 3489 | if (q->sec == p->sec) | |
| 3490 | { | |
| 3491 | q->pc_count += p->pc_count; | |
| 3492 | q->count += p->count; | |
| 3493 | *pp = p->next; | |
| 3494 | break; | |
| 3495 | } | |
| 3496 | if (q == NULL) | |
| 3497 | pp = &p->next; | |
| 3498 | } | |
| 3499 | *pp = edir->dyn_relocs; | |
| 3500 | } | |
| 3501 | ||
| 3502 | edir->dyn_relocs = eind->dyn_relocs; | |
| 3503 | eind->dyn_relocs = NULL; | |
| 3504 | } | |
| 3505 | ||
| 3506 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
| 3507 | } | |
| 3508 | \f | |
| 63c1f59d AM |
3509 | /* Find dynamic relocs for H that apply to read-only sections. */ |
| 3510 | ||
| 3511 | static asection * | |
| 3512 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 3513 | { | |
| 3514 | struct elf_nds32_dyn_relocs *p; | |
| 3515 | ||
| 3516 | for (p = elf32_nds32_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
| 3517 | { | |
| 3518 | asection *s = p->sec->output_section; | |
| 3519 | ||
| 3520 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 3521 | return p->sec; | |
| 3522 | } | |
| 3523 | return NULL; | |
| 3524 | } | |
| 35c08157 KLC |
3525 | |
| 3526 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
| 3527 | regular object. The current definition is in some section of the | |
| 3528 | dynamic object, but we're not including those sections. We have to | |
| 3529 | change the definition to something the rest of the link can | |
| 3530 | understand. */ | |
| 3531 | ||
| 3532 | static bfd_boolean | |
| 3533 | nds32_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
| 3534 | struct elf_link_hash_entry *h) | |
| 3535 | { | |
| 3536 | struct elf_nds32_link_hash_table *htab; | |
| 3537 | struct elf_nds32_link_hash_entry *eh; | |
| 3538 | struct elf_nds32_dyn_relocs *p; | |
| 3539 | bfd *dynobj; | |
| 3540 | asection *s; | |
| 3541 | unsigned int power_of_two; | |
| 3542 | ||
| 3543 | dynobj = elf_hash_table (info)->dynobj; | |
| 3544 | ||
| 3545 | /* Make sure we know what is going on here. */ | |
| 3546 | BFD_ASSERT (dynobj != NULL | |
| 3547 | && (h->needs_plt | |
| 60d67dc8 | 3548 | || h->is_weakalias |
| 35c08157 KLC |
3549 | || (h->def_dynamic && h->ref_regular && !h->def_regular))); |
| 3550 | ||
| 3551 | ||
| 3552 | /* If this is a function, put it in the procedure linkage table. We | |
| 3553 | will fill in the contents of the procedure linkage table later, | |
| 3554 | when we know the address of the .got section. */ | |
| 3555 | if (h->type == STT_FUNC || h->needs_plt) | |
| 3556 | { | |
| 0e1862bb | 3557 | if (!bfd_link_pic (info) |
| 35c08157 KLC |
3558 | && !h->def_dynamic |
| 3559 | && !h->ref_dynamic | |
| 3560 | && h->root.type != bfd_link_hash_undefweak | |
| 3561 | && h->root.type != bfd_link_hash_undefined) | |
| 3562 | { | |
| 3563 | /* This case can occur if we saw a PLT reloc in an input | |
| 3564 | file, but the symbol was never referred to by a dynamic | |
| 3565 | object. In such a case, we don't actually need to build | |
| 3566 | a procedure linkage table, and we can just do a PCREL | |
| 3567 | reloc instead. */ | |
| 3568 | h->plt.offset = (bfd_vma) - 1; | |
| 3569 | h->needs_plt = 0; | |
| 3570 | } | |
| 3571 | ||
| 3572 | return TRUE; | |
| 3573 | } | |
| 3574 | else | |
| 3575 | h->plt.offset = (bfd_vma) - 1; | |
| 3576 | ||
| 3577 | /* If this is a weak symbol, and there is a real definition, the | |
| 3578 | processor independent code will have arranged for us to see the | |
| 3579 | real definition first, and we can just use the same value. */ | |
| 60d67dc8 | 3580 | if (h->is_weakalias) |
| 35c08157 | 3581 | { |
| 60d67dc8 AM |
3582 | struct elf_link_hash_entry *def = weakdef (h); |
| 3583 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
| 3584 | h->root.u.def.section = def->root.u.def.section; | |
| 3585 | h->root.u.def.value = def->root.u.def.value; | |
| 35c08157 KLC |
3586 | return TRUE; |
| 3587 | } | |
| 3588 | ||
| 3589 | /* This is a reference to a symbol defined by a dynamic object which | |
| 3590 | is not a function. */ | |
| 3591 | ||
| 3592 | /* If we are creating a shared library, we must presume that the | |
| 3593 | only references to the symbol are via the global offset table. | |
| 3594 | For such cases we need not do anything here; the relocations will | |
| 3595 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 3596 | if (bfd_link_pic (info)) |
| 35c08157 KLC |
3597 | return TRUE; |
| 3598 | ||
| 3599 | /* If there are no references to this symbol that do not use the | |
| 3600 | GOT, we don't need to generate a copy reloc. */ | |
| 3601 | if (!h->non_got_ref) | |
| 3602 | return TRUE; | |
| 3603 | ||
| 3604 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
| 3605 | if (info->nocopyreloc) | |
| 3606 | { | |
| 3607 | h->non_got_ref = 0; | |
| 3608 | return TRUE; | |
| 3609 | } | |
| 3610 | ||
| 3611 | eh = (struct elf_nds32_link_hash_entry *) h; | |
| 3612 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 3613 | { | |
| 3614 | s = p->sec->output_section; | |
| 3615 | if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0) | |
| 3616 | break; | |
| 3617 | } | |
| 3618 | ||
| 3619 | /* If we didn't find any dynamic relocs in sections which needs the | |
| 3620 | copy reloc, then we'll be keeping the dynamic relocs and avoiding | |
| 3621 | the copy reloc. */ | |
| 3622 | if (p == NULL) | |
| 3623 | { | |
| 3624 | h->non_got_ref = 0; | |
| 3625 | return TRUE; | |
| 3626 | } | |
| 3627 | ||
| 3628 | /* We must allocate the symbol in our .dynbss section, which will | |
| 3629 | become part of the .bss section of the executable. There will be | |
| 3630 | an entry for this symbol in the .dynsym section. The dynamic | |
| 3631 | object will contain position independent code, so all references | |
| 3632 | from the dynamic object to this symbol will go through the global | |
| 3633 | offset table. The dynamic linker will use the .dynsym entry to | |
| 3634 | determine the address it must put in the global offset table, so | |
| 3635 | both the dynamic object and the regular object will refer to the | |
| 3636 | same memory location for the variable. */ | |
| 3637 | ||
| 3638 | htab = nds32_elf_hash_table (info); | |
| 3639 | s = htab->sdynbss; | |
| 3640 | BFD_ASSERT (s != NULL); | |
| 3641 | ||
| 3642 | /* We must generate a R_NDS32_COPY reloc to tell the dynamic linker | |
| 3643 | to copy the initial value out of the dynamic object and into the | |
| 3644 | runtime process image. We need to remember the offset into the | |
| 3645 | .rela.bss section we are going to use. */ | |
| 3646 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
| 3647 | { | |
| 3648 | asection *srel; | |
| 3649 | ||
| 3650 | srel = htab->srelbss; | |
| 3651 | BFD_ASSERT (srel != NULL); | |
| 3652 | srel->size += sizeof (Elf32_External_Rela); | |
| 3653 | h->needs_copy = 1; | |
| 3654 | } | |
| 3655 | ||
| 3656 | /* We need to figure out the alignment required for this symbol. I | |
| 3657 | have no idea how ELF linkers handle this. */ | |
| 3658 | power_of_two = bfd_log2 (h->size); | |
| 3659 | if (power_of_two > 3) | |
| 3660 | power_of_two = 3; | |
| 3661 | ||
| 3662 | /* Apply the required alignment. */ | |
| 3663 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); | |
| 3664 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) | |
| 3665 | { | |
| 3666 | if (!bfd_set_section_alignment (dynobj, s, power_of_two)) | |
| 3667 | return FALSE; | |
| 3668 | } | |
| 3669 | ||
| 3670 | /* Define the symbol as being at this point in the section. */ | |
| 3671 | h->root.u.def.section = s; | |
| 3672 | h->root.u.def.value = s->size; | |
| 3673 | ||
| 3674 | /* Increment the section size to make room for the symbol. */ | |
| 3675 | s->size += h->size; | |
| 3676 | ||
| 3677 | return TRUE; | |
| 3678 | } | |
| 3679 | ||
| 3680 | /* Allocate space in .plt, .got and associated reloc sections for | |
| 3681 | dynamic relocs. */ | |
| 3682 | ||
| 3683 | static bfd_boolean | |
| 3684 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) | |
| 3685 | { | |
| 3686 | struct bfd_link_info *info; | |
| 3687 | struct elf_nds32_link_hash_table *htab; | |
| 3688 | struct elf_nds32_link_hash_entry *eh; | |
| 3689 | struct elf_nds32_dyn_relocs *p; | |
| 3690 | ||
| 3691 | if (h->root.type == bfd_link_hash_indirect) | |
| 3692 | return TRUE; | |
| 3693 | ||
| 3694 | if (h->root.type == bfd_link_hash_warning) | |
| 3695 | /* When warning symbols are created, they **replace** the "real" | |
| 3696 | entry in the hash table, thus we never get to see the real | |
| 3697 | symbol in a hash traversal. So look at it now. */ | |
| 3698 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 3699 | ||
| 3700 | info = (struct bfd_link_info *) inf; | |
| 3701 | htab = nds32_elf_hash_table (info); | |
| 3702 | ||
| 3703 | eh = (struct elf_nds32_link_hash_entry *) h; | |
| 3704 | ||
| 3705 | if (htab->root.dynamic_sections_created && h->plt.refcount > 0) | |
| 3706 | { | |
| 3707 | /* Make sure this symbol is output as a dynamic symbol. | |
| 3708 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 3709 | if (h->dynindx == -1 && !h->forced_local) | |
| 3710 | { | |
| 3711 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 3712 | return FALSE; | |
| 3713 | } | |
| 3714 | ||
| 0e1862bb | 3715 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
| 35c08157 | 3716 | { |
| ce558b89 | 3717 | asection *s = htab->root.splt; |
| 35c08157 KLC |
3718 | |
| 3719 | /* If this is the first .plt entry, make room for the special | |
| 3720 | first entry. */ | |
| 3721 | if (s->size == 0) | |
| 3722 | s->size += PLT_ENTRY_SIZE; | |
| 3723 | ||
| 3724 | h->plt.offset = s->size; | |
| 3725 | ||
| 3726 | /* If this symbol is not defined in a regular file, and we are | |
| 3727 | not generating a shared library, then set the symbol to this | |
| 3728 | location in the .plt. This is required to make function | |
| 3729 | pointers compare as equal between the normal executable and | |
| 3730 | the shared library. */ | |
| 0e1862bb | 3731 | if (!bfd_link_pic (info) && !h->def_regular) |
| 35c08157 KLC |
3732 | { |
| 3733 | h->root.u.def.section = s; | |
| 3734 | h->root.u.def.value = h->plt.offset; | |
| 3735 | } | |
| 3736 | ||
| 3737 | /* Make room for this entry. */ | |
| 3738 | s->size += PLT_ENTRY_SIZE; | |
| 3739 | ||
| 3740 | /* We also need to make an entry in the .got.plt section, which | |
| 3741 | will be placed in the .got section by the linker script. */ | |
| ce558b89 | 3742 | htab->root.sgotplt->size += 4; |
| 35c08157 KLC |
3743 | |
| 3744 | /* We also need to make an entry in the .rel.plt section. */ | |
| ce558b89 | 3745 | htab->root.srelplt->size += sizeof (Elf32_External_Rela); |
| 35c08157 KLC |
3746 | } |
| 3747 | else | |
| 3748 | { | |
| 3749 | h->plt.offset = (bfd_vma) - 1; | |
| 3750 | h->needs_plt = 0; | |
| 3751 | } | |
| 3752 | } | |
| 3753 | else | |
| 3754 | { | |
| 3755 | h->plt.offset = (bfd_vma) - 1; | |
| 3756 | h->needs_plt = 0; | |
| 3757 | } | |
| 3758 | ||
| 3759 | if (h->got.refcount > 0) | |
| 3760 | { | |
| 3761 | asection *s; | |
| 3762 | bfd_boolean dyn; | |
| 1c8f6a4d | 3763 | int tls_type = elf32_nds32_hash_entry (h)->tls_type; |
| 35c08157 KLC |
3764 | |
| 3765 | /* Make sure this symbol is output as a dynamic symbol. | |
| 3766 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 3767 | if (h->dynindx == -1 && !h->forced_local) | |
| 3768 | { | |
| 3769 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 3770 | return FALSE; | |
| 3771 | } | |
| 3772 | ||
| ce558b89 | 3773 | s = htab->root.sgot; |
| 35c08157 | 3774 | h->got.offset = s->size; |
| 1c8f6a4d KLC |
3775 | |
| 3776 | if (tls_type == GOT_UNKNOWN) | |
| 3777 | abort (); | |
| 3778 | else if (tls_type == GOT_NORMAL | |
| 3779 | || tls_type == GOT_TLS_IE) | |
| 3780 | /* Need a GOT slot. */ | |
| 3781 | s->size += 4; | |
| 3782 | ||
| 35c08157 | 3783 | dyn = htab->root.dynamic_sections_created; |
| 0e1862bb | 3784 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)) |
| ce558b89 | 3785 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
| 35c08157 KLC |
3786 | } |
| 3787 | else | |
| 3788 | h->got.offset = (bfd_vma) - 1; | |
| 3789 | ||
| 3790 | if (eh->dyn_relocs == NULL) | |
| 3791 | return TRUE; | |
| 3792 | ||
| 3793 | /* In the shared -Bsymbolic case, discard space allocated for | |
| 3794 | dynamic pc-relative relocs against symbols which turn out to be | |
| 3795 | defined in regular objects. For the normal shared case, discard | |
| 3796 | space for pc-relative relocs that have become local due to symbol | |
| 3797 | visibility changes. */ | |
| 3798 | ||
| 0e1862bb | 3799 | if (bfd_link_pic (info)) |
| 35c08157 KLC |
3800 | { |
| 3801 | if (h->def_regular && (h->forced_local || info->symbolic)) | |
| 3802 | { | |
| 3803 | struct elf_nds32_dyn_relocs **pp; | |
| 3804 | ||
| 3805 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL;) | |
| 3806 | { | |
| 3807 | p->count -= p->pc_count; | |
| 3808 | p->pc_count = 0; | |
| 3809 | if (p->count == 0) | |
| 3810 | *pp = p->next; | |
| 3811 | else | |
| 3812 | pp = &p->next; | |
| 3813 | } | |
| 3814 | } | |
| 3815 | } | |
| 3816 | else | |
| 3817 | { | |
| 3818 | /* For the non-shared case, discard space for relocs against | |
| 3819 | symbols which turn out to need copy relocs or are not dynamic. */ | |
| 3820 | ||
| 3821 | if (!h->non_got_ref | |
| 3822 | && ((h->def_dynamic | |
| 3823 | && !h->def_regular) | |
| 3824 | || (htab->root.dynamic_sections_created | |
| 3825 | && (h->root.type == bfd_link_hash_undefweak | |
| 3826 | || h->root.type == bfd_link_hash_undefined)))) | |
| 3827 | { | |
| 3828 | /* Make sure this symbol is output as a dynamic symbol. | |
| 3829 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 3830 | if (h->dynindx == -1 && !h->forced_local) | |
| 3831 | { | |
| 3832 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 3833 | return FALSE; | |
| 3834 | } | |
| 3835 | ||
| 3836 | /* If that succeeded, we know we'll be keeping all the | |
| 3837 | relocs. */ | |
| 3838 | if (h->dynindx != -1) | |
| 3839 | goto keep; | |
| 3840 | } | |
| 3841 | ||
| 3842 | eh->dyn_relocs = NULL; | |
| 3843 | ||
| 3844 | keep:; | |
| 3845 | } | |
| 3846 | ||
| 3847 | /* Finally, allocate space. */ | |
| 3848 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 3849 | { | |
| 3850 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 3851 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
| 3852 | } | |
| 3853 | ||
| 3854 | return TRUE; | |
| 3855 | } | |
| 3856 | ||
| 63c1f59d AM |
3857 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
| 3858 | read-only sections. */ | |
| 35c08157 KLC |
3859 | |
| 3860 | static bfd_boolean | |
| 63c1f59d | 3861 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
| 35c08157 | 3862 | { |
| 63c1f59d | 3863 | asection *sec; |
| 35c08157 | 3864 | |
| 63c1f59d AM |
3865 | if (h->root.type == bfd_link_hash_indirect) |
| 3866 | return TRUE; | |
| 35c08157 | 3867 | |
| 63c1f59d AM |
3868 | sec = readonly_dynrelocs (h); |
| 3869 | if (sec != NULL) | |
| 35c08157 | 3870 | { |
| 63c1f59d | 3871 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; |
| 35c08157 | 3872 | |
| 63c1f59d AM |
3873 | info->flags |= DF_TEXTREL; |
| 3874 | info->callbacks->minfo | |
| 3875 | (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"), | |
| 3876 | sec->owner, h->root.root.string, sec); | |
| 35c08157 | 3877 | |
| 63c1f59d AM |
3878 | /* Not an error, just cut short the traversal. */ |
| 3879 | return FALSE; | |
| 35c08157 KLC |
3880 | } |
| 3881 | return TRUE; | |
| 3882 | } | |
| 3883 | ||
| 3884 | /* Set the sizes of the dynamic sections. */ | |
| 3885 | ||
| 3886 | static bfd_boolean | |
| 3887 | nds32_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
| 3888 | struct bfd_link_info *info) | |
| 3889 | { | |
| 3890 | struct elf_nds32_link_hash_table *htab; | |
| 3891 | bfd *dynobj; | |
| 3892 | asection *s; | |
| 3893 | bfd_boolean relocs; | |
| 3894 | bfd *ibfd; | |
| 3895 | ||
| 3896 | htab = nds32_elf_hash_table (info); | |
| 3897 | dynobj = htab->root.dynobj; | |
| 3898 | BFD_ASSERT (dynobj != NULL); | |
| 3899 | ||
| 3900 | if (htab->root.dynamic_sections_created) | |
| 3901 | { | |
| 3902 | /* Set the contents of the .interp section to the interpreter. */ | |
| f5233a16 | 3903 | if (bfd_link_executable (info) && !info->nointerp) |
| 35c08157 KLC |
3904 | { |
| 3905 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
| 3906 | BFD_ASSERT (s != NULL); | |
| 3907 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
| 3908 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
| 3909 | } | |
| 3910 | } | |
| 3911 | ||
| 3912 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 3913 | relocs. */ | |
| c72f2fb2 | 3914 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 35c08157 KLC |
3915 | { |
| 3916 | bfd_signed_vma *local_got; | |
| 3917 | bfd_signed_vma *end_local_got; | |
| 3918 | bfd_size_type locsymcount; | |
| 3919 | Elf_Internal_Shdr *symtab_hdr; | |
| 3920 | asection *srel; | |
| 3921 | ||
| 3922 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
| 3923 | continue; | |
| 3924 | ||
| 3925 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 3926 | { | |
| 3927 | struct elf_nds32_dyn_relocs *p; | |
| 3928 | ||
| 3929 | for (p = ((struct elf_nds32_dyn_relocs *) | |
| 3930 | elf_section_data (s)->local_dynrel); | |
| 3931 | p != NULL; p = p->next) | |
| 3932 | { | |
| 3933 | if (!bfd_is_abs_section (p->sec) | |
| 3934 | && bfd_is_abs_section (p->sec->output_section)) | |
| 3935 | { | |
| 3936 | /* Input section has been discarded, either because | |
| 3937 | it is a copy of a linkonce section or due to | |
| 3938 | linker script /DISCARD/, so we'll be discarding | |
| 3939 | the relocs too. */ | |
| 3940 | } | |
| 3941 | else if (p->count != 0) | |
| 3942 | { | |
| 3943 | srel = elf_section_data (p->sec)->sreloc; | |
| 3944 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
| 3945 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
| 3946 | info->flags |= DF_TEXTREL; | |
| 3947 | } | |
| 3948 | } | |
| 3949 | } | |
| 3950 | ||
| 3951 | local_got = elf_local_got_refcounts (ibfd); | |
| 3952 | if (!local_got) | |
| 3953 | continue; | |
| 3954 | ||
| 3955 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
| 3956 | locsymcount = symtab_hdr->sh_info; | |
| 3957 | end_local_got = local_got + locsymcount; | |
| ce558b89 AM |
3958 | s = htab->root.sgot; |
| 3959 | srel = htab->root.srelgot; | |
| 35c08157 KLC |
3960 | for (; local_got < end_local_got; ++local_got) |
| 3961 | { | |
| 3962 | if (*local_got > 0) | |
| 3963 | { | |
| 3964 | *local_got = s->size; | |
| 3965 | s->size += 4; | |
| 0e1862bb | 3966 | if (bfd_link_pic (info)) |
| 35c08157 KLC |
3967 | srel->size += sizeof (Elf32_External_Rela); |
| 3968 | } | |
| 3969 | else | |
| 3970 | *local_got = (bfd_vma) - 1; | |
| 3971 | } | |
| 3972 | } | |
| 3973 | ||
| 3974 | /* Allocate global sym .plt and .got entries, and space for global | |
| 3975 | sym dynamic relocs. */ | |
| 3976 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, (void *) info); | |
| 3977 | ||
| 3978 | /* We now have determined the sizes of the various dynamic sections. | |
| 3979 | Allocate memory for them. */ | |
| 3980 | relocs = FALSE; | |
| 3981 | for (s = dynobj->sections; s != NULL; s = s->next) | |
| 3982 | { | |
| 3983 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 3984 | continue; | |
| 3985 | ||
| ce558b89 | 3986 | if (s == htab->root.splt) |
| 35c08157 KLC |
3987 | { |
| 3988 | /* Strip this section if we don't need it; see the | |
| 3989 | comment below. */ | |
| 3990 | } | |
| ce558b89 | 3991 | else if (s == htab->root.sgot) |
| 35c08157 KLC |
3992 | { |
| 3993 | got_size += s->size; | |
| 3994 | } | |
| ce558b89 | 3995 | else if (s == htab->root.sgotplt) |
| 35c08157 KLC |
3996 | { |
| 3997 | got_size += s->size; | |
| 3998 | } | |
| 3999 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
| 4000 | { | |
| ce558b89 | 4001 | if (s->size != 0 && s != htab->root.srelplt) |
| 35c08157 KLC |
4002 | relocs = TRUE; |
| 4003 | ||
| 4004 | /* We use the reloc_count field as a counter if we need | |
| 4005 | to copy relocs into the output file. */ | |
| 4006 | s->reloc_count = 0; | |
| 4007 | } | |
| 4008 | else | |
| 4009 | { | |
| 4010 | /* It's not one of our sections, so don't allocate space. */ | |
| 4011 | continue; | |
| 4012 | } | |
| 4013 | ||
| 4014 | if (s->size == 0) | |
| 4015 | { | |
| 4016 | /* If we don't need this section, strip it from the | |
| 4017 | output file. This is mostly to handle .rela.bss and | |
| 4018 | .rela.plt. We must create both sections in | |
| 4019 | create_dynamic_sections, because they must be created | |
| 4020 | before the linker maps input sections to output | |
| 4021 | sections. The linker does that before | |
| 4022 | adjust_dynamic_symbol is called, and it is that | |
| 4023 | function which decides whether anything needs to go | |
| 4024 | into these sections. */ | |
| 4025 | s->flags |= SEC_EXCLUDE; | |
| 4026 | continue; | |
| 4027 | } | |
| 4028 | ||
| 4029 | /* Allocate memory for the section contents. We use bfd_zalloc | |
| 4030 | here in case unused entries are not reclaimed before the | |
| 4031 | section's contents are written out. This should not happen, | |
| 4032 | but this way if it does, we get a R_NDS32_NONE reloc instead | |
| 4033 | of garbage. */ | |
| 4034 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); | |
| 4035 | if (s->contents == NULL) | |
| 4036 | return FALSE; | |
| 4037 | } | |
| 4038 | ||
| 4039 | ||
| 4040 | if (htab->root.dynamic_sections_created) | |
| 4041 | { | |
| 4042 | /* Add some entries to the .dynamic section. We fill in the | |
| 4043 | values later, in nds32_elf_finish_dynamic_sections, but we | |
| 4044 | must add the entries now so that we get the correct size for | |
| 4045 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 4046 | dynamic linker and used by the debugger. */ | |
| 4047 | #define add_dynamic_entry(TAG, VAL) \ | |
| 4048 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
| 4049 | ||
| 0e1862bb | 4050 | if (!bfd_link_pic (info)) |
| 35c08157 KLC |
4051 | { |
| 4052 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
| 4053 | return FALSE; | |
| 4054 | } | |
| 4055 | ||
| ce558b89 | 4056 | if (htab->root.splt->size != 0) |
| 35c08157 KLC |
4057 | { |
| 4058 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
| 4059 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 4060 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 4061 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
| 4062 | return FALSE; | |
| 4063 | } | |
| 4064 | ||
| 4065 | if (relocs) | |
| 4066 | { | |
| 4067 | if (!add_dynamic_entry (DT_RELA, 0) | |
| 4068 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 4069 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
| 4070 | return FALSE; | |
| 4071 | ||
| 4072 | /* If any dynamic relocs apply to a read-only section, | |
| 4073 | then we need a DT_TEXTREL entry. */ | |
| 4074 | if ((info->flags & DF_TEXTREL) == 0) | |
| 63c1f59d | 4075 | elf_link_hash_traverse (&htab->root, maybe_set_textrel, |
| 35c08157 KLC |
4076 | (void *) info); |
| 4077 | ||
| 4078 | if ((info->flags & DF_TEXTREL) != 0) | |
| 4079 | { | |
| 4080 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
| 4081 | return FALSE; | |
| 4082 | } | |
| 4083 | } | |
| 4084 | } | |
| 4085 | #undef add_dynamic_entry | |
| 4086 | ||
| 4087 | return TRUE; | |
| 4088 | } | |
| 4089 | ||
| 4090 | static bfd_reloc_status_type | |
| 4091 | nds32_relocate_contents (reloc_howto_type *howto, bfd *input_bfd, | |
| 4092 | bfd_vma relocation, bfd_byte *location) | |
| 4093 | { | |
| 4094 | int size; | |
| 4095 | bfd_vma x = 0; | |
| 4096 | bfd_reloc_status_type flag; | |
| 4097 | unsigned int rightshift = howto->rightshift; | |
| 4098 | unsigned int bitpos = howto->bitpos; | |
| 4099 | ||
| 4100 | /* If the size is negative, negate RELOCATION. This isn't very | |
| 4101 | general. */ | |
| 4102 | if (howto->size < 0) | |
| 4103 | relocation = -relocation; | |
| 4104 | ||
| 4105 | /* Get the value we are going to relocate. */ | |
| 4106 | size = bfd_get_reloc_size (howto); | |
| 4107 | switch (size) | |
| 4108 | { | |
| 4109 | default: | |
| 35c08157 KLC |
4110 | abort (); |
| 4111 | break; | |
| 6346d5ca AM |
4112 | case 0: |
| 4113 | return bfd_reloc_ok; | |
| 35c08157 KLC |
4114 | case 2: |
| 4115 | x = bfd_getb16 (location); | |
| 4116 | break; | |
| 4117 | case 4: | |
| 4118 | x = bfd_getb32 (location); | |
| 4119 | break; | |
| 4120 | } | |
| 4121 | ||
| 4122 | /* Check for overflow. FIXME: We may drop bits during the addition | |
| 4123 | which we don't check for. We must either check at every single | |
| 4124 | operation, which would be tedious, or we must do the computations | |
| 4125 | in a type larger than bfd_vma, which would be inefficient. */ | |
| 4126 | flag = bfd_reloc_ok; | |
| 4127 | if (howto->complain_on_overflow != complain_overflow_dont) | |
| 4128 | { | |
| 4129 | bfd_vma addrmask, fieldmask, signmask, ss; | |
| 4130 | bfd_vma a, b, sum; | |
| 4131 | ||
| 4132 | /* Get the values to be added together. For signed and unsigned | |
| 4133 | relocations, we assume that all values should be truncated to | |
| 4134 | the size of an address. For bitfields, all the bits matter. | |
| 4135 | See also bfd_check_overflow. */ | |
| 4136 | fieldmask = N_ONES (howto->bitsize); | |
| 4137 | signmask = ~fieldmask; | |
| 4138 | addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask; | |
| 4139 | a = (relocation & addrmask) >> rightshift; | |
| 4140 | b = (x & howto->src_mask & addrmask) >> bitpos; | |
| 4141 | ||
| 4142 | switch (howto->complain_on_overflow) | |
| 4143 | { | |
| 4144 | case complain_overflow_signed: | |
| 4145 | /* If any sign bits are set, all sign bits must be set. | |
| 4146 | That is, A must be a valid negative address after | |
| 4147 | shifting. */ | |
| 4148 | signmask = ~(fieldmask >> 1); | |
| 4149 | /* Fall through. */ | |
| 4150 | ||
| 4151 | case complain_overflow_bitfield: | |
| 4152 | /* Much like the signed check, but for a field one bit | |
| 4153 | wider. We allow a bitfield to represent numbers in the | |
| 4154 | range -2**n to 2**n-1, where n is the number of bits in the | |
| 4155 | field. Note that when bfd_vma is 32 bits, a 32-bit reloc | |
| 4156 | can't overflow, which is exactly what we want. */ | |
| 4157 | ss = a & signmask; | |
| 4158 | if (ss != 0 && ss != ((addrmask >> rightshift) & signmask)) | |
| 4159 | flag = bfd_reloc_overflow; | |
| 4160 | ||
| 4161 | /* We only need this next bit of code if the sign bit of B | |
| 4162 | is below the sign bit of A. This would only happen if | |
| 4163 | SRC_MASK had fewer bits than BITSIZE. Note that if | |
| 4164 | SRC_MASK has more bits than BITSIZE, we can get into | |
| 4165 | trouble; we would need to verify that B is in range, as | |
| 4166 | we do for A above. */ | |
| 4167 | ss = ((~howto->src_mask) >> 1) & howto->src_mask; | |
| 4168 | ss >>= bitpos; | |
| 4169 | ||
| 4170 | /* Set all the bits above the sign bit. */ | |
| 4171 | b = (b ^ ss) - ss; | |
| 4172 | ||
| 4173 | /* Now we can do the addition. */ | |
| 4174 | sum = a + b; | |
| 4175 | ||
| 4176 | /* See if the result has the correct sign. Bits above the | |
| 4177 | sign bit are junk now; ignore them. If the sum is | |
| 4178 | positive, make sure we did not have all negative inputs; | |
| 4179 | if the sum is negative, make sure we did not have all | |
| 4180 | positive inputs. The test below looks only at the sign | |
| 4181 | bits, and it really just | |
| 4182 | SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM) | |
| 4183 | ||
| 4184 | We mask with addrmask here to explicitly allow an address | |
| 4185 | wrap-around. The Linux kernel relies on it, and it is | |
| 4186 | the only way to write assembler code which can run when | |
| 4187 | loaded at a location 0x80000000 away from the location at | |
| 4188 | which it is linked. */ | |
| 4189 | if (((~(a ^ b)) & (a ^ sum)) & signmask & addrmask) | |
| 4190 | flag = bfd_reloc_overflow; | |
| 4191 | ||
| 4192 | break; | |
| 4193 | ||
| 4194 | case complain_overflow_unsigned: | |
| 4195 | /* Checking for an unsigned overflow is relatively easy: | |
| 4196 | trim the addresses and add, and trim the result as well. | |
| 4197 | Overflow is normally indicated when the result does not | |
| 4198 | fit in the field. However, we also need to consider the | |
| 4199 | case when, e.g., fieldmask is 0x7fffffff or smaller, an | |
| 4200 | input is 0x80000000, and bfd_vma is only 32 bits; then we | |
| 4201 | will get sum == 0, but there is an overflow, since the | |
| 4202 | inputs did not fit in the field. Instead of doing a | |
| 4203 | separate test, we can check for this by or-ing in the | |
| 4204 | operands when testing for the sum overflowing its final | |
| 4205 | field. */ | |
| 4206 | sum = (a + b) & addrmask; | |
| 4207 | if ((a | b | sum) & signmask) | |
| 4208 | flag = bfd_reloc_overflow; | |
| 4209 | break; | |
| 4210 | ||
| 4211 | default: | |
| 4212 | abort (); | |
| 4213 | } | |
| 4214 | } | |
| 4215 | ||
| 4216 | /* Put RELOCATION in the right bits. */ | |
| 4217 | relocation >>= (bfd_vma) rightshift; | |
| 4218 | relocation <<= (bfd_vma) bitpos; | |
| 4219 | ||
| 4220 | /* Add RELOCATION to the right bits of X. */ | |
| 4221 | /* FIXME : 090616 | |
| 4222 | Because the relaxation may generate duplicate relocation at one address, | |
| 4223 | an addition to immediate in the instruction may cause the relocation added | |
| 4224 | several times. | |
| 4225 | This bug should be fixed in assembler, but a check is also needed here. */ | |
| 4226 | if (howto->partial_inplace) | |
| 4227 | x = ((x & ~howto->dst_mask) | |
| 4228 | | (((x & howto->src_mask) + relocation) & howto->dst_mask)); | |
| 4229 | else | |
| 4230 | x = ((x & ~howto->dst_mask) | ((relocation) & howto->dst_mask)); | |
| 4231 | ||
| 4232 | ||
| 4233 | /* Put the relocated value back in the object file. */ | |
| 4234 | switch (size) | |
| 4235 | { | |
| 4236 | default: | |
| 4237 | case 0: | |
| 4238 | case 1: | |
| 4239 | case 8: | |
| 4240 | abort (); | |
| 4241 | break; | |
| 4242 | case 2: | |
| 4243 | bfd_putb16 (x, location); | |
| 4244 | break; | |
| 4245 | case 4: | |
| 4246 | bfd_putb32 (x, location); | |
| 4247 | break; | |
| 4248 | } | |
| 4249 | ||
| 4250 | return flag; | |
| 4251 | } | |
| 4252 | ||
| 4253 | static bfd_reloc_status_type | |
| 4254 | nds32_elf_final_link_relocate (reloc_howto_type *howto, bfd *input_bfd, | |
| 4255 | asection *input_section, bfd_byte *contents, | |
| 4256 | bfd_vma address, bfd_vma value, bfd_vma addend) | |
| 4257 | { | |
| 4258 | bfd_vma relocation; | |
| 4259 | ||
| 4260 | /* Sanity check the address. */ | |
| 4261 | if (address > bfd_get_section_limit (input_bfd, input_section)) | |
| 4262 | return bfd_reloc_outofrange; | |
| 4263 | ||
| 4264 | /* This function assumes that we are dealing with a basic relocation | |
| 4265 | against a symbol. We want to compute the value of the symbol to | |
| 4266 | relocate to. This is just VALUE, the value of the symbol, plus | |
| 4267 | ADDEND, any addend associated with the reloc. */ | |
| 4268 | relocation = value + addend; | |
| 4269 | ||
| 4270 | /* If the relocation is PC relative, we want to set RELOCATION to | |
| 4271 | the distance between the symbol (currently in RELOCATION) and the | |
| 4272 | location we are relocating. Some targets (e.g., i386-aout) | |
| 4273 | arrange for the contents of the section to be the negative of the | |
| 4274 | offset of the location within the section; for such targets | |
| 4275 | pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF) | |
| 4276 | simply leave the contents of the section as zero; for such | |
| 4277 | targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not | |
| 4278 | need to subtract out the offset of the location within the | |
| 4279 | section (which is just ADDRESS). */ | |
| 4280 | if (howto->pc_relative) | |
| 4281 | { | |
| 4282 | relocation -= (input_section->output_section->vma | |
| 4283 | + input_section->output_offset); | |
| 4284 | if (howto->pcrel_offset) | |
| 4285 | relocation -= address; | |
| 4286 | } | |
| 4287 | ||
| 4288 | return nds32_relocate_contents (howto, input_bfd, relocation, | |
| 4289 | contents + address); | |
| 4290 | } | |
| 4291 | ||
| 4292 | static bfd_boolean | |
| 4293 | nds32_elf_output_symbol_hook (struct bfd_link_info *info, | |
| 4294 | const char *name, | |
| 4295 | Elf_Internal_Sym *elfsym ATTRIBUTE_UNUSED, | |
| 4296 | asection *input_sec, | |
| 4297 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
| 4298 | { | |
| 4299 | const char *source; | |
| 4300 | FILE *sym_ld_script = NULL; | |
| 4301 | struct elf_nds32_link_hash_table *table; | |
| 4302 | ||
| 4303 | table = nds32_elf_hash_table (info); | |
| 4304 | sym_ld_script = table->sym_ld_script; | |
| 4305 | if (!sym_ld_script) | |
| 4306 | return TRUE; | |
| 4307 | ||
| 4308 | if (!h || !name || *name == '\0') | |
| 4309 | return TRUE; | |
| 4310 | ||
| 4311 | if (input_sec->flags & SEC_EXCLUDE) | |
| 4312 | return TRUE; | |
| 4313 | ||
| 4314 | if (!check_start_export_sym) | |
| 4315 | { | |
| 4316 | fprintf (sym_ld_script, "SECTIONS\n{\n"); | |
| 4317 | check_start_export_sym = 1; | |
| 4318 | } | |
| 4319 | ||
| 4320 | if (h->root.type == bfd_link_hash_defined | |
| 4321 | || h->root.type == bfd_link_hash_defweak) | |
| 4322 | { | |
| 4323 | if (!h->root.u.def.section->output_section) | |
| 4324 | return TRUE; | |
| 4325 | ||
| 4326 | if (bfd_is_const_section (input_sec)) | |
| 4327 | source = input_sec->name; | |
| 4328 | else | |
| 4329 | source = input_sec->owner->filename; | |
| 4330 | ||
| 4331 | fprintf (sym_ld_script, "\t%s = 0x%08lx;\t /* %s */\n", | |
| 4332 | h->root.root.string, | |
| 4333 | (long) (h->root.u.def.value | |
| 4334 | + h->root.u.def.section->output_section->vma | |
| 4335 | + h->root.u.def.section->output_offset), source); | |
| 4336 | } | |
| 4337 | ||
| 4338 | return TRUE; | |
| 4339 | } | |
| 4340 | ||
| 4341 | /* Relocate an NDS32/D ELF section. | |
| 4342 | There is some attempt to make this function usable for many architectures, | |
| 4343 | both for RELA and REL type relocs, if only to serve as a learning tool. | |
| 4344 | ||
| 4345 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
| 4346 | to handle the relocations for a section. | |
| 4347 | ||
| 4348 | The relocs are always passed as Rela structures; if the section | |
| 4349 | actually uses Rel structures, the r_addend field will always be | |
| 4350 | zero. | |
| 4351 | ||
| 4352 | This function is responsible for adjust the section contents as | |
| 4353 | necessary, and (if using Rela relocs and generating a | |
| 4354 | relocatable output file) adjusting the reloc addend as | |
| 4355 | necessary. | |
| 4356 | ||
| 4357 | This function does not have to worry about setting the reloc | |
| 4358 | address or the reloc symbol index. | |
| 4359 | ||
| 4360 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 4361 | ||
| 4362 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 4363 | corresponding to the st_shndx field of each local symbol. | |
| 4364 | ||
| 4365 | The global hash table entry for the global symbols can be found | |
| 4366 | via elf_sym_hashes (input_bfd). | |
| 4367 | ||
| 4368 | When generating relocatable output, this function must handle | |
| 4369 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
| 4370 | going to be the section symbol corresponding to the output | |
| 4371 | section, which means that the addend must be adjusted | |
| 4372 | accordingly. */ | |
| 4373 | ||
| 1c8f6a4d KLC |
4374 | static bfd_vma |
| 4375 | dtpoff_base (struct bfd_link_info *info) | |
| 4376 | { | |
| 4377 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
| 4378 | if (elf_hash_table (info)->tls_sec == NULL) | |
| 4379 | return 0; | |
| 4380 | return elf_hash_table (info)->tls_sec->vma; | |
| 4381 | } | |
| 4382 | ||
| 35c08157 KLC |
4383 | static bfd_boolean |
| 4384 | nds32_elf_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED, | |
| 4385 | struct bfd_link_info * info, | |
| 4386 | bfd * input_bfd, | |
| 4387 | asection * input_section, | |
| 4388 | bfd_byte * contents, | |
| 4389 | Elf_Internal_Rela * relocs, | |
| 4390 | Elf_Internal_Sym * local_syms, | |
| 4391 | asection ** local_sections) | |
| 4392 | { | |
| 4393 | Elf_Internal_Shdr *symtab_hdr; | |
| 4394 | struct elf_link_hash_entry **sym_hashes; | |
| 4395 | Elf_Internal_Rela *rel, *relend; | |
| 4396 | bfd_boolean ret = TRUE; /* Assume success. */ | |
| 4397 | int align = 0; | |
| 4398 | bfd_reloc_status_type r; | |
| 4399 | const char *errmsg = NULL; | |
| 4400 | bfd_vma gp; | |
| 4401 | struct elf_nds32_link_hash_table *htab; | |
| 4402 | bfd *dynobj; | |
| 4403 | bfd_vma *local_got_offsets; | |
| 4404 | asection *sgot, *splt, *sreloc; | |
| 4405 | bfd_vma high_address; | |
| 4406 | struct elf_nds32_link_hash_table *table; | |
| 4407 | int eliminate_gc_relocs; | |
| 4408 | bfd_vma fpbase_addr; | |
| 4409 | ||
| 4410 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
| 4411 | sym_hashes = elf_sym_hashes (input_bfd); | |
| 4412 | htab = nds32_elf_hash_table (info); | |
| 4413 | high_address = bfd_get_section_limit (input_bfd, input_section); | |
| 4414 | ||
| 4415 | dynobj = htab->root.dynobj; | |
| 4416 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
| 4417 | ||
| ce558b89 AM |
4418 | sgot = htab->root.sgot; |
| 4419 | splt = htab->root.splt; | |
| 35c08157 KLC |
4420 | sreloc = NULL; |
| 4421 | ||
| 4422 | rel = relocs; | |
| 4423 | relend = relocs + input_section->reloc_count; | |
| 4424 | ||
| 4425 | table = nds32_elf_hash_table (info); | |
| 4426 | eliminate_gc_relocs = table->eliminate_gc_relocs; | |
| 4427 | /* By this time, we can adjust the value of _SDA_BASE_. */ | |
| 0e1862bb | 4428 | if ((!bfd_link_relocatable (info))) |
| 35c08157 KLC |
4429 | { |
| 4430 | is_SDA_BASE_set = 1; | |
| 4431 | r = nds32_elf_final_sda_base (output_bfd, info, &gp, TRUE); | |
| 4432 | if (r != bfd_reloc_ok) | |
| 4433 | return FALSE; | |
| 4434 | } | |
| 4435 | ||
| 0c4bd9d9 KLC |
4436 | if (is_ITB_BASE_set == 0) |
| 4437 | { | |
| 4438 | /* Set the _ITB_BASE_. */ | |
| 4439 | if (!nds32_elf_ex9_itb_base (info)) | |
| 4440 | { | |
| 4eca0228 AM |
4441 | _bfd_error_handler (_("%B: error: Cannot set _ITB_BASE_"), |
| 4442 | output_bfd); | |
| 0c4bd9d9 KLC |
4443 | bfd_set_error (bfd_error_bad_value); |
| 4444 | } | |
| 4445 | } | |
| 4446 | ||
| 1c8f6a4d KLC |
4447 | if (table->target_optimize & NDS32_RELAX_JUMP_IFC_ON) |
| 4448 | if (!nds32_elf_ifc_reloc ()) | |
| 4eca0228 | 4449 | _bfd_error_handler (_("error: IFC relocation error.")); |
| 1c8f6a4d KLC |
4450 | |
| 4451 | /* Relocation for .ex9.itable. */ | |
| 4452 | if (table->target_optimize & NDS32_RELAX_EX9_ON | |
| 4453 | || (table->ex9_import_file && table->update_ex9_table)) | |
| 4454 | nds32_elf_ex9_reloc_jmp (info); | |
| 4455 | ||
| 35c08157 KLC |
4456 | /* Use gp as fp to prevent truncated fit. Because in relaxation time |
| 4457 | the fp value is set as gp, and it has be reverted for instruction | |
| 4458 | setting fp. */ | |
| 4459 | fpbase_addr = elf_gp (output_bfd); | |
| 4460 | ||
| 4461 | for (rel = relocs; rel < relend; rel++) | |
| 4462 | { | |
| 4463 | enum elf_nds32_reloc_type r_type; | |
| 4464 | reloc_howto_type *howto = NULL; | |
| 4465 | unsigned long r_symndx; | |
| 4466 | struct elf_link_hash_entry *h = NULL; | |
| 4467 | Elf_Internal_Sym *sym = NULL; | |
| 4468 | asection *sec; | |
| 4469 | bfd_vma relocation; | |
| 4470 | ||
| 4471 | /* We can't modify r_addend here as elf_link_input_bfd has an assert to | |
| 4472 | ensure it's zero (we use REL relocs, not RELA). Therefore this | |
| 4473 | should be assigning zero to `addend', but for clarity we use | |
| 4474 | `r_addend'. */ | |
| 4475 | ||
| 4476 | bfd_vma addend = rel->r_addend; | |
| 4477 | bfd_vma offset = rel->r_offset; | |
| 4478 | ||
| 4479 | r_type = ELF32_R_TYPE (rel->r_info); | |
| 4480 | if (r_type >= R_NDS32_max) | |
| 4481 | { | |
| 695344c0 | 4482 | /* xgettext:c-format */ |
| 4eca0228 AM |
4483 | _bfd_error_handler (_("%B: error: unknown relocation type %d."), |
| 4484 | input_bfd, r_type); | |
| 35c08157 KLC |
4485 | bfd_set_error (bfd_error_bad_value); |
| 4486 | ret = FALSE; | |
| 4487 | continue; | |
| 4488 | } | |
| 4489 | ||
| 4490 | if (r_type == R_NDS32_GNU_VTENTRY | |
| 4491 | || r_type == R_NDS32_GNU_VTINHERIT | |
| 4492 | || r_type == R_NDS32_NONE | |
| 4493 | || r_type == R_NDS32_RELA_GNU_VTENTRY | |
| 4494 | || r_type == R_NDS32_RELA_GNU_VTINHERIT | |
| 4495 | || (r_type >= R_NDS32_INSN16 && r_type <= R_NDS32_25_FIXED_RELA) | |
| 4496 | || r_type == R_NDS32_DATA | |
| 1c8f6a4d | 4497 | || r_type == R_NDS32_TRAN |
| 0c4bd9d9 | 4498 | || (r_type >= R_NDS32_LONGCALL4 && r_type <= R_NDS32_LONGJUMP7)) |
| 35c08157 KLC |
4499 | continue; |
| 4500 | ||
| 0c4bd9d9 KLC |
4501 | /* If we enter the fp-as-gp region. Resolve the address |
| 4502 | of best fp-base. */ | |
| 35c08157 KLC |
4503 | if (ELF32_R_TYPE (rel->r_info) == R_NDS32_RELAX_REGION_BEGIN |
| 4504 | && (rel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
| 4505 | { | |
| 4506 | int dist; | |
| 4507 | ||
| 4508 | /* Distance to relocation of best fp-base is encoded in R_SYM. */ | |
| 4509 | dist = rel->r_addend >> 16; | |
| 4510 | fpbase_addr = calculate_memory_address (input_bfd, rel + dist, | |
| 4511 | local_syms, symtab_hdr); | |
| 4512 | } | |
| 4513 | else if (ELF32_R_TYPE (rel->r_info) == R_NDS32_RELAX_REGION_END | |
| 4514 | && (rel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
| 4515 | { | |
| 4516 | fpbase_addr = elf_gp (output_bfd); | |
| 4517 | } | |
| 4518 | ||
| 4519 | if (((r_type >= R_NDS32_DWARF2_OP1_RELA | |
| 4520 | && r_type <= R_NDS32_DWARF2_LEB_RELA) | |
| 0e1862bb | 4521 | || r_type >= R_NDS32_RELAX_ENTRY) && !bfd_link_relocatable (info)) |
| 35c08157 KLC |
4522 | continue; |
| 4523 | ||
| 4524 | howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type); | |
| 4525 | r_symndx = ELF32_R_SYM (rel->r_info); | |
| 4526 | ||
| 4527 | /* This is a final link. */ | |
| 4528 | sym = NULL; | |
| 4529 | sec = NULL; | |
| 4530 | h = NULL; | |
| 4531 | ||
| 4532 | if (r_symndx < symtab_hdr->sh_info) | |
| 4533 | { | |
| 4534 | /* Local symbol. */ | |
| 4535 | sym = local_syms + r_symndx; | |
| 4536 | sec = local_sections[r_symndx]; | |
| 4537 | ||
| 4538 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
| 4539 | addend = rel->r_addend; | |
| 4540 | } | |
| 4541 | else | |
| 4542 | { | |
| 4543 | /* External symbol. */ | |
| 4544 | bfd_boolean warned, ignored, unresolved_reloc; | |
| 4545 | int symndx = r_symndx - symtab_hdr->sh_info; | |
| 4546 | ||
| 4547 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
| 4548 | r_symndx, symtab_hdr, sym_hashes, h, sec, | |
| 4549 | relocation, unresolved_reloc, warned, | |
| 4550 | ignored); | |
| 4551 | ||
| 4552 | /* la $fp, _FP_BASE_ is per-function (region). | |
| 4553 | Handle it specially. */ | |
| 4554 | switch ((int) r_type) | |
| 4555 | { | |
| 4556 | case R_NDS32_SDA19S0_RELA: | |
| 4557 | case R_NDS32_SDA15S0_RELA: | |
| 4558 | case R_NDS32_20_RELA: | |
| 4559 | if (strcmp (elf_sym_hashes (input_bfd)[symndx]->root.root.string, | |
| 4560 | FP_BASE_NAME) == 0) | |
| 4561 | { | |
| 4562 | relocation = fpbase_addr; | |
| 4563 | break; | |
| 4564 | } | |
| 4565 | } | |
| 4566 | ||
| 4567 | } | |
| 4568 | ||
| 0e1862bb | 4569 | if (bfd_link_relocatable (info)) |
| 35c08157 KLC |
4570 | { |
| 4571 | /* This is a relocatable link. We don't have to change | |
| 4572 | anything, unless the reloc is against a section symbol, | |
| 4573 | in which case we have to adjust according to where the | |
| 4574 | section symbol winds up in the output section. */ | |
| 4575 | if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 4576 | rel->r_addend += sec->output_offset + sym->st_value; | |
| 4577 | ||
| 4578 | continue; | |
| 4579 | } | |
| 4580 | ||
| 4581 | /* Sanity check the address. */ | |
| 4582 | if (offset > high_address) | |
| 4583 | { | |
| 4584 | r = bfd_reloc_outofrange; | |
| 4585 | goto check_reloc; | |
| 4586 | } | |
| 4587 | ||
| 4588 | if ((r_type >= R_NDS32_DWARF2_OP1_RELA | |
| 4589 | && r_type <= R_NDS32_DWARF2_LEB_RELA) | |
| 4590 | || r_type >= R_NDS32_RELAX_ENTRY) | |
| 4591 | continue; | |
| 4592 | ||
| 4593 | switch ((int) r_type) | |
| 4594 | { | |
| 4595 | case R_NDS32_GOTOFF: | |
| 4596 | /* Relocation is relative to the start of the global offset | |
| 4597 | table (for ld24 rx, #uimm24), e.g. access at label+addend | |
| 4598 | ||
| 4599 | ld24 rx. #label@GOTOFF + addend | |
| 4600 | sub rx, r12. */ | |
| 4601 | case R_NDS32_GOTOFF_HI20: | |
| 4602 | case R_NDS32_GOTOFF_LO12: | |
| 4603 | case R_NDS32_GOTOFF_LO15: | |
| 4604 | case R_NDS32_GOTOFF_LO19: | |
| 4605 | BFD_ASSERT (sgot != NULL); | |
| 4606 | ||
| 4607 | relocation -= elf_gp (output_bfd); | |
| 4608 | break; | |
| 4609 | ||
| 4610 | case R_NDS32_9_PLTREL: | |
| 4611 | case R_NDS32_25_PLTREL: | |
| 4612 | /* Relocation is to the entry for this symbol in the | |
| 4613 | procedure linkage table. */ | |
| 4614 | ||
| 4615 | /* The native assembler will generate a 25_PLTREL reloc | |
| 4616 | for a local symbol if you assemble a call from one | |
| 4617 | section to another when using -K pic. */ | |
| 4618 | if (h == NULL) | |
| 4619 | break; | |
| 4620 | ||
| 4621 | if (h->forced_local) | |
| 4622 | break; | |
| 4623 | ||
| 4624 | /* We didn't make a PLT entry for this symbol. This | |
| 4625 | happens when statically linking PIC code, or when | |
| 4626 | using -Bsymbolic. */ | |
| 4627 | if (h->plt.offset == (bfd_vma) - 1) | |
| 4628 | break; | |
| 4629 | ||
| 4630 | relocation = (splt->output_section->vma | |
| 4631 | + splt->output_offset + h->plt.offset); | |
| 4632 | break; | |
| 4633 | ||
| 4634 | case R_NDS32_PLT_GOTREL_HI20: | |
| 4635 | case R_NDS32_PLT_GOTREL_LO12: | |
| 4636 | case R_NDS32_PLT_GOTREL_LO15: | |
| 4637 | case R_NDS32_PLT_GOTREL_LO19: | |
| 4638 | case R_NDS32_PLT_GOTREL_LO20: | |
| 4639 | if (h == NULL || h->forced_local || h->plt.offset == (bfd_vma) - 1) | |
| 4640 | { | |
| 4641 | /* We didn't make a PLT entry for this symbol. This | |
| 4642 | happens when statically linking PIC code, or when | |
| 4643 | using -Bsymbolic. */ | |
| 4644 | relocation -= elf_gp (output_bfd); | |
| 4645 | break; | |
| 4646 | } | |
| 4647 | ||
| 4648 | relocation = (splt->output_section->vma | |
| 4649 | + splt->output_offset + h->plt.offset); | |
| 4650 | ||
| 4651 | relocation -= elf_gp (output_bfd); | |
| 4652 | break; | |
| 4653 | ||
| 4654 | case R_NDS32_PLTREL_HI20: | |
| 4655 | case R_NDS32_PLTREL_LO12: | |
| 4656 | ||
| 4657 | /* Relocation is to the entry for this symbol in the | |
| 4658 | procedure linkage table. */ | |
| 4659 | ||
| 4660 | /* The native assembler will generate a 25_PLTREL reloc | |
| 4661 | for a local symbol if you assemble a call from one | |
| 4662 | section to another when using -K pic. */ | |
| 4663 | if (h == NULL) | |
| 4664 | break; | |
| 4665 | ||
| 4666 | if (h->forced_local) | |
| 4667 | break; | |
| 4668 | ||
| 4669 | if (h->plt.offset == (bfd_vma) - 1) | |
| 4670 | /* We didn't make a PLT entry for this symbol. This | |
| 4671 | happens when statically linking PIC code, or when | |
| 4672 | using -Bsymbolic. */ | |
| 4673 | break; | |
| 4674 | ||
| 4675 | if (splt == NULL) | |
| 4676 | break; | |
| 4677 | ||
| 4678 | relocation = (splt->output_section->vma | |
| 4679 | + splt->output_offset | |
| 4680 | + h->plt.offset + 4) | |
| 4681 | - (input_section->output_section->vma | |
| 4682 | + input_section->output_offset | |
| 4683 | + rel->r_offset); | |
| 4684 | ||
| 4685 | break; | |
| 4686 | ||
| 4687 | case R_NDS32_GOTPC20: | |
| 4688 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation | |
| 4689 | ld24 rx,#_GLOBAL_OFFSET_TABLE_ */ | |
| 4690 | relocation = elf_gp (output_bfd); | |
| 4691 | break; | |
| 4692 | ||
| 4693 | case R_NDS32_GOTPC_HI20: | |
| 4694 | case R_NDS32_GOTPC_LO12: | |
| 4695 | { | |
| 4696 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation | |
| 4697 | bl .+4 | |
| 4698 | seth rx,#high(_GLOBAL_OFFSET_TABLE_) | |
| 4699 | or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) | |
| 4700 | or | |
| 4701 | bl .+4 | |
| 4702 | seth rx,#shigh(_GLOBAL_OFFSET_TABLE_) | |
| 4703 | add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) | |
| 4704 | */ | |
| 4705 | relocation = elf_gp (output_bfd); | |
| 4706 | relocation -= (input_section->output_section->vma | |
| 4707 | + input_section->output_offset + rel->r_offset); | |
| 4708 | break; | |
| 4709 | } | |
| 4710 | ||
| 4711 | case R_NDS32_GOT20: | |
| 4712 | /* Fall through. */ | |
| 4713 | case R_NDS32_GOT_HI20: | |
| 4714 | case R_NDS32_GOT_LO12: | |
| 4715 | case R_NDS32_GOT_LO15: | |
| 4716 | case R_NDS32_GOT_LO19: | |
| 4717 | /* Relocation is to the entry for this symbol in the global | |
| 4718 | offset table. */ | |
| 4719 | BFD_ASSERT (sgot != NULL); | |
| 4720 | ||
| 4721 | if (h != NULL) | |
| 4722 | { | |
| 4723 | bfd_boolean dyn; | |
| 4724 | bfd_vma off; | |
| 4725 | ||
| 4726 | off = h->got.offset; | |
| 4727 | BFD_ASSERT (off != (bfd_vma) - 1); | |
| 4728 | dyn = htab->root.dynamic_sections_created; | |
| 0e1862bb L |
4729 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
| 4730 | bfd_link_pic (info), | |
| 4731 | h) | |
| 4732 | || (bfd_link_pic (info) | |
| 35c08157 KLC |
4733 | && (info->symbolic |
| 4734 | || h->dynindx == -1 | |
| 4735 | || h->forced_local) && h->def_regular)) | |
| 4736 | { | |
| 4737 | /* This is actually a static link, or it is a | |
| 4738 | -Bsymbolic link and the symbol is defined | |
| 4739 | locally, or the symbol was forced to be local | |
| 4740 | because of a version file. We must initialize | |
| 4741 | this entry in the global offset table. Since the | |
| 4742 | offset must always be a multiple of 4, we use the | |
| 4743 | least significant bit to record whether we have | |
| 4744 | initialized it already. | |
| 4745 | ||
| 4746 | When doing a dynamic link, we create a .rela.got | |
| 4747 | relocation entry to initialize the value. This | |
| 4748 | is done in the finish_dynamic_symbol routine. */ | |
| 4749 | if ((off & 1) != 0) | |
| 4750 | off &= ~1; | |
| 4751 | else | |
| 4752 | { | |
| 4753 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
| 4754 | h->got.offset |= 1; | |
| 4755 | } | |
| 4756 | } | |
| 4757 | relocation = sgot->output_section->vma + sgot->output_offset + off | |
| 4758 | - elf_gp (output_bfd); | |
| 4759 | } | |
| 4760 | else | |
| 4761 | { | |
| 4762 | bfd_vma off; | |
| 4763 | bfd_byte *loc; | |
| 4764 | ||
| 4765 | BFD_ASSERT (local_got_offsets != NULL | |
| 4766 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
| 4767 | ||
| 4768 | off = local_got_offsets[r_symndx]; | |
| 4769 | ||
| 4770 | /* The offset must always be a multiple of 4. We use | |
| 4771 | the least significant bit to record whether we have | |
| 4772 | already processed this entry. */ | |
| 4773 | if ((off & 1) != 0) | |
| 4774 | off &= ~1; | |
| 4775 | else | |
| 4776 | { | |
| 4777 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
| 4778 | ||
| 0e1862bb | 4779 | if (bfd_link_pic (info)) |
| 35c08157 KLC |
4780 | { |
| 4781 | asection *srelgot; | |
| 4782 | Elf_Internal_Rela outrel; | |
| 4783 | ||
| 4784 | /* We need to generate a R_NDS32_RELATIVE reloc | |
| 4785 | for the dynamic linker. */ | |
| ce558b89 | 4786 | srelgot = htab->root.srelgot; |
| 35c08157 KLC |
4787 | BFD_ASSERT (srelgot != NULL); |
| 4788 | ||
| 4789 | outrel.r_offset = (elf_gp (output_bfd) | |
| 4790 | + sgot->output_offset + off); | |
| 4791 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
| 4792 | outrel.r_addend = relocation; | |
| 4793 | loc = srelgot->contents; | |
| 4794 | loc += | |
| 4795 | srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
| 4796 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
| 4797 | ++srelgot->reloc_count; | |
| 4798 | } | |
| 4799 | local_got_offsets[r_symndx] |= 1; | |
| 4800 | } | |
| 4801 | relocation = sgot->output_section->vma + sgot->output_offset + off | |
| 4802 | - elf_gp (output_bfd); | |
| 4803 | } | |
| 4804 | ||
| 4805 | break; | |
| 4806 | ||
| 4807 | case R_NDS32_16_RELA: | |
| 4808 | case R_NDS32_20_RELA: | |
| 4809 | case R_NDS32_5_RELA: | |
| 4810 | case R_NDS32_32_RELA: | |
| 4811 | case R_NDS32_9_PCREL_RELA: | |
| 4812 | case R_NDS32_WORD_9_PCREL_RELA: | |
| 4813 | case R_NDS32_10_UPCREL_RELA: | |
| 4814 | case R_NDS32_15_PCREL_RELA: | |
| 4815 | case R_NDS32_17_PCREL_RELA: | |
| 4816 | case R_NDS32_25_PCREL_RELA: | |
| 4817 | case R_NDS32_HI20_RELA: | |
| 4818 | case R_NDS32_LO12S3_RELA: | |
| 4819 | case R_NDS32_LO12S2_RELA: | |
| 4820 | case R_NDS32_LO12S2_DP_RELA: | |
| 4821 | case R_NDS32_LO12S2_SP_RELA: | |
| 4822 | case R_NDS32_LO12S1_RELA: | |
| 4823 | case R_NDS32_LO12S0_RELA: | |
| 4824 | case R_NDS32_LO12S0_ORI_RELA: | |
| 0e1862bb | 4825 | if (bfd_link_pic (info) && r_symndx != 0 |
| 35c08157 KLC |
4826 | && (input_section->flags & SEC_ALLOC) != 0 |
| 4827 | && (eliminate_gc_relocs == 0 | |
| 4828 | || (sec && (sec->flags & SEC_EXCLUDE) == 0)) | |
| 4829 | && ((r_type != R_NDS32_9_PCREL_RELA | |
| 4830 | && r_type != R_NDS32_WORD_9_PCREL_RELA | |
| 4831 | && r_type != R_NDS32_10_UPCREL_RELA | |
| 4832 | && r_type != R_NDS32_15_PCREL_RELA | |
| 4833 | && r_type != R_NDS32_17_PCREL_RELA | |
| 4834 | && r_type != R_NDS32_25_PCREL_RELA | |
| 4835 | && !(r_type == R_NDS32_32_RELA | |
| 4836 | && strcmp (input_section->name, ".eh_frame") == 0)) | |
| 4837 | || (h != NULL && h->dynindx != -1 | |
| 4838 | && (!info->symbolic || !h->def_regular)))) | |
| 4839 | { | |
| 4840 | Elf_Internal_Rela outrel; | |
| 4841 | bfd_boolean skip, relocate; | |
| 4842 | bfd_byte *loc; | |
| 4843 | ||
| 4844 | /* When generating a shared object, these relocations | |
| 4845 | are copied into the output file to be resolved at run | |
| 4846 | time. */ | |
| 4847 | ||
| 4848 | if (sreloc == NULL) | |
| 4849 | { | |
| 4850 | const char *name; | |
| 4851 | ||
| 4852 | name = bfd_elf_string_from_elf_section | |
| 4853 | (input_bfd, elf_elfheader (input_bfd)->e_shstrndx, | |
| 4854 | elf_section_data (input_section)->rela.hdr->sh_name); | |
| 4855 | if (name == NULL) | |
| 4856 | return FALSE; | |
| 4857 | ||
| 4858 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
| 4859 | && strcmp (bfd_get_section_name (input_bfd, | |
| 4860 | input_section), | |
| 4861 | name + 5) == 0); | |
| 4862 | ||
| 4863 | sreloc = bfd_get_section_by_name (dynobj, name); | |
| 4864 | BFD_ASSERT (sreloc != NULL); | |
| 4865 | } | |
| 4866 | ||
| 4867 | skip = FALSE; | |
| 4868 | relocate = FALSE; | |
| 4869 | ||
| 4870 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, | |
| 4871 | info, | |
| 4872 | input_section, | |
| 4873 | rel->r_offset); | |
| 4874 | if (outrel.r_offset == (bfd_vma) - 1) | |
| 4875 | skip = TRUE; | |
| 4876 | else if (outrel.r_offset == (bfd_vma) - 2) | |
| 4877 | skip = TRUE, relocate = TRUE; | |
| 4878 | outrel.r_offset += (input_section->output_section->vma | |
| 4879 | + input_section->output_offset); | |
| 4880 | ||
| 4881 | if (skip) | |
| 4882 | memset (&outrel, 0, sizeof outrel); | |
| 4883 | else if (r_type == R_NDS32_17_PCREL_RELA | |
| 4884 | || r_type == R_NDS32_15_PCREL_RELA | |
| 4885 | || r_type == R_NDS32_25_PCREL_RELA) | |
| 4886 | { | |
| 4887 | BFD_ASSERT (h != NULL && h->dynindx != -1); | |
| 4888 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
| 4889 | outrel.r_addend = rel->r_addend; | |
| 4890 | } | |
| 4891 | else | |
| 4892 | { | |
| 4893 | /* h->dynindx may be -1 if this symbol was marked to | |
| 4894 | become local. */ | |
| 4895 | if (h == NULL | |
| 4896 | || ((info->symbolic || h->dynindx == -1) | |
| 4897 | && h->def_regular)) | |
| 4898 | { | |
| 4899 | relocate = TRUE; | |
| 4900 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
| 4901 | outrel.r_addend = relocation + rel->r_addend; | |
| 4902 | } | |
| 4903 | else | |
| 4904 | { | |
| 4905 | BFD_ASSERT (h->dynindx != -1); | |
| 4906 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
| 4907 | outrel.r_addend = rel->r_addend; | |
| 4908 | } | |
| 4909 | } | |
| 4910 | ||
| 4911 | loc = sreloc->contents; | |
| 4912 | loc += sreloc->reloc_count * sizeof (Elf32_External_Rela); | |
| 4913 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
| 4914 | ++sreloc->reloc_count; | |
| 4915 | ||
| 4916 | /* If this reloc is against an external symbol, we do | |
| 4917 | not want to fiddle with the addend. Otherwise, we | |
| 4918 | need to include the symbol value so that it becomes | |
| 4919 | an addend for the dynamic reloc. */ | |
| 4920 | if (!relocate) | |
| 4921 | continue; | |
| 4922 | } | |
| 4923 | break; | |
| 4924 | ||
| 4925 | case R_NDS32_25_ABS_RELA: | |
| 0e1862bb | 4926 | if (bfd_link_pic (info)) |
| 35c08157 | 4927 | { |
| 4eca0228 | 4928 | _bfd_error_handler |
| dae82561 AM |
4929 | (_("%B: warning: cannot deal R_NDS32_25_ABS_RELA in shared " |
| 4930 | "mode."), input_bfd); | |
| 35c08157 KLC |
4931 | return FALSE; |
| 4932 | } | |
| 4933 | break; | |
| 4934 | ||
| 4935 | case R_NDS32_9_PCREL: | |
| 4936 | r = nds32_elf_do_9_pcrel_reloc (input_bfd, howto, input_section, | |
| 4937 | contents, offset, | |
| 4938 | sec, relocation, addend); | |
| 4939 | goto check_reloc; | |
| 4940 | ||
| 4941 | case R_NDS32_HI20: | |
| 4942 | { | |
| 4943 | Elf_Internal_Rela *lorel; | |
| 4944 | ||
| 4945 | /* We allow an arbitrary number of HI20 relocs before the | |
| 4946 | LO12 reloc. This permits gcc to emit the HI and LO relocs | |
| 4947 | itself. */ | |
| 4948 | for (lorel = rel + 1; | |
| 4949 | (lorel < relend | |
| 4950 | && ELF32_R_TYPE (lorel->r_info) == R_NDS32_HI20); lorel++) | |
| 4951 | continue; | |
| 4952 | if (lorel < relend | |
| 4953 | && (ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S3 | |
| 4954 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S2 | |
| 4955 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S1 | |
| 4956 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S0)) | |
| 4957 | { | |
| 4958 | nds32_elf_relocate_hi20 (input_bfd, r_type, rel, lorel, | |
| 4959 | contents, relocation + addend); | |
| 4960 | r = bfd_reloc_ok; | |
| 4961 | } | |
| 4962 | else | |
| 4963 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
| 1c8f6a4d KLC |
4964 | contents, offset, relocation, |
| 4965 | addend); | |
| 35c08157 KLC |
4966 | } |
| 4967 | ||
| 4968 | goto check_reloc; | |
| 4969 | ||
| 4970 | case R_NDS32_GOT17S2_RELA: | |
| 4971 | case R_NDS32_GOT15S2_RELA: | |
| 4972 | { | |
| 4973 | bfd_vma off; | |
| 4974 | ||
| 4975 | BFD_ASSERT (sgot != NULL); | |
| 4976 | ||
| 4977 | if (h != NULL) | |
| 4978 | { | |
| 4979 | bfd_boolean dyn; | |
| 4980 | ||
| 4981 | off = h->got.offset; | |
| 4982 | BFD_ASSERT (off != (bfd_vma) - 1); | |
| 4983 | ||
| 4984 | dyn = htab->root.dynamic_sections_created; | |
| 4985 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL | |
| 0e1862bb L |
4986 | (dyn, bfd_link_pic (info), h) |
| 4987 | || (bfd_link_pic (info) | |
| 4988 | && (info->symbolic | |
| 4989 | || h->dynindx == -1 | |
| 4990 | || h->forced_local) | |
| 4991 | && h->def_regular)) | |
| 35c08157 KLC |
4992 | { |
| 4993 | /* This is actually a static link, or it is a | |
| 4994 | -Bsymbolic link and the symbol is defined | |
| 4995 | locally, or the symbol was forced to be local | |
| 4996 | because of a version file. We must initialize | |
| 4997 | this entry in the global offset table. Since the | |
| 4998 | offset must always be a multiple of 4, we use the | |
| 4999 | least significant bit to record whether we have | |
| 5000 | initialized it already. | |
| 5001 | ||
| 5002 | When doing a dynamic link, we create a .rela.got | |
| 5003 | relocation entry to initialize the value. This | |
| 5004 | is done in the finish_dynamic_symbol routine. */ | |
| 5005 | if ((off & 1) != 0) | |
| 5006 | off &= ~1; | |
| 5007 | else | |
| 5008 | { | |
| 5009 | bfd_put_32 (output_bfd, relocation, | |
| 5010 | sgot->contents + off); | |
| 5011 | h->got.offset |= 1; | |
| 5012 | } | |
| 5013 | } | |
| 5014 | } | |
| 5015 | else | |
| 5016 | { | |
| 5017 | bfd_byte *loc; | |
| 5018 | ||
| 5019 | BFD_ASSERT (local_got_offsets != NULL | |
| 5020 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
| 5021 | ||
| 5022 | off = local_got_offsets[r_symndx]; | |
| 5023 | ||
| 5024 | /* The offset must always be a multiple of 4. We use | |
| 5025 | the least significant bit to record whether we have | |
| 5026 | already processed this entry. */ | |
| 5027 | if ((off & 1) != 0) | |
| 5028 | off &= ~1; | |
| 5029 | else | |
| 5030 | { | |
| 5031 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
| 5032 | ||
| 0e1862bb | 5033 | if (bfd_link_pic (info)) |
| 35c08157 KLC |
5034 | { |
| 5035 | asection *srelgot; | |
| 5036 | Elf_Internal_Rela outrel; | |
| 5037 | ||
| 5038 | /* We need to generate a R_NDS32_RELATIVE reloc | |
| 5039 | for the dynamic linker. */ | |
| ce558b89 | 5040 | srelgot = htab->root.srelgot; |
| 35c08157 KLC |
5041 | BFD_ASSERT (srelgot != NULL); |
| 5042 | ||
| 5043 | outrel.r_offset = (elf_gp (output_bfd) | |
| 5044 | + sgot->output_offset + off); | |
| 5045 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
| 5046 | outrel.r_addend = relocation; | |
| 5047 | loc = srelgot->contents; | |
| 5048 | loc += | |
| 5049 | srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
| 5050 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
| 5051 | ++srelgot->reloc_count; | |
| 5052 | } | |
| 5053 | local_got_offsets[r_symndx] |= 1; | |
| 5054 | } | |
| 5055 | } | |
| 5056 | relocation = sgot->output_section->vma + sgot->output_offset + off | |
| 5057 | - elf_gp (output_bfd); | |
| 5058 | } | |
| 5059 | if (relocation & align) | |
| 5060 | { | |
| 5061 | /* Incorrect alignment. */ | |
| 4eca0228 | 5062 | _bfd_error_handler |
| 35c08157 KLC |
5063 | (_("%B: warning: unaligned access to GOT entry."), input_bfd); |
| 5064 | ret = FALSE; | |
| 5065 | r = bfd_reloc_dangerous; | |
| 5066 | goto check_reloc; | |
| 5067 | } | |
| 5068 | break; | |
| 5069 | ||
| 5070 | case R_NDS32_SDA16S3_RELA: | |
| 5071 | case R_NDS32_SDA15S3_RELA: | |
| 5072 | case R_NDS32_SDA15S3: | |
| 5073 | align = 0x7; | |
| 5074 | goto handle_sda; | |
| 5075 | ||
| 5076 | case R_NDS32_SDA17S2_RELA: | |
| 5077 | case R_NDS32_SDA15S2_RELA: | |
| 5078 | case R_NDS32_SDA12S2_SP_RELA: | |
| 5079 | case R_NDS32_SDA12S2_DP_RELA: | |
| 5080 | case R_NDS32_SDA15S2: | |
| 5081 | case R_NDS32_SDA_FP7U2_RELA: | |
| 5082 | align = 0x3; | |
| 5083 | goto handle_sda; | |
| 5084 | ||
| 5085 | case R_NDS32_SDA18S1_RELA: | |
| 5086 | case R_NDS32_SDA15S1_RELA: | |
| 5087 | case R_NDS32_SDA15S1: | |
| 5088 | align = 0x1; | |
| 5089 | goto handle_sda; | |
| 5090 | ||
| 5091 | case R_NDS32_SDA19S0_RELA: | |
| 5092 | case R_NDS32_SDA15S0_RELA: | |
| 5093 | case R_NDS32_SDA15S0: | |
| 5094 | { | |
| 5095 | align = 0x0; | |
| 5096 | handle_sda: | |
| 5097 | BFD_ASSERT (sec != NULL); | |
| 5098 | ||
| 5099 | /* If the symbol is in the abs section, the out_bfd will be null. | |
| 5100 | This happens when the relocation has a symbol@GOTOFF. */ | |
| 5101 | r = nds32_elf_final_sda_base (output_bfd, info, &gp, FALSE); | |
| 5102 | if (r != bfd_reloc_ok) | |
| 5103 | { | |
| 4eca0228 | 5104 | _bfd_error_handler |
| 35c08157 KLC |
5105 | (_("%B: warning: relocate SDA_BASE failed."), input_bfd); |
| 5106 | ret = FALSE; | |
| 5107 | goto check_reloc; | |
| 5108 | } | |
| 5109 | ||
| 5110 | /* At this point `relocation' contains the object's | |
| 5111 | address. */ | |
| 5112 | if (r_type == R_NDS32_SDA_FP7U2_RELA) | |
| 5113 | { | |
| 5114 | relocation -= fpbase_addr; | |
| 5115 | } | |
| 5116 | else | |
| 5117 | relocation -= gp; | |
| 5118 | /* Now it contains the offset from _SDA_BASE_. */ | |
| 5119 | ||
| 5120 | /* Make sure alignment is correct. */ | |
| 5121 | ||
| 5122 | if (relocation & align) | |
| 5123 | { | |
| 5124 | /* Incorrect alignment. */ | |
| 4eca0228 | 5125 | _bfd_error_handler |
| 695344c0 | 5126 | /* xgettext:c-format */ |
| 35c08157 KLC |
5127 | (_("%B(%A): warning: unaligned small data access of type %d."), |
| 5128 | input_bfd, input_section, r_type); | |
| 5129 | ret = FALSE; | |
| 5130 | goto check_reloc; | |
| 5131 | } | |
| 5132 | } | |
| 5133 | ||
| 5134 | break; | |
| 5135 | case R_NDS32_17IFC_PCREL_RELA: | |
| 5136 | case R_NDS32_10IFCU_PCREL_RELA: | |
| 5137 | /* do nothing */ | |
| 5138 | break; | |
| 5139 | ||
| 1c8f6a4d KLC |
5140 | case R_NDS32_TLS_LE_HI20: |
| 5141 | case R_NDS32_TLS_LE_LO12: | |
| 5142 | case R_NDS32_TLS_LE_20: | |
| 5143 | case R_NDS32_TLS_LE_15S0: | |
| 5144 | case R_NDS32_TLS_LE_15S1: | |
| 5145 | case R_NDS32_TLS_LE_15S2: | |
| 5146 | if (elf_hash_table (info)->tls_sec != NULL) | |
| 5147 | relocation -= (elf_hash_table (info)->tls_sec->vma + TP_OFFSET); | |
| 5148 | break; | |
| 5149 | case R_NDS32_TLS_IE_HI20: | |
| 5150 | case R_NDS32_TLS_IE_LO12S2: | |
| 5151 | { | |
| 5152 | /* Relocation is to the entry for this symbol in the global | |
| 5153 | offset table. */ | |
| 5154 | unsigned int tls_type; | |
| 5155 | asection *srelgot; | |
| 5156 | Elf_Internal_Rela outrel; | |
| 5157 | bfd_vma off; | |
| 5158 | bfd_byte *loc; | |
| 5159 | int indx = 0; | |
| 5160 | ||
| 5161 | BFD_ASSERT (sgot != NULL); | |
| 5162 | if (h != NULL) | |
| 5163 | { | |
| 5164 | bfd_boolean dyn; | |
| 5165 | ||
| 5166 | off = h->got.offset; | |
| 5167 | BFD_ASSERT (off != (bfd_vma) - 1); | |
| 5168 | dyn = htab->root.dynamic_sections_created; | |
| 5169 | tls_type = ((struct elf_nds32_link_hash_entry *) h)->tls_type; | |
| 0e1862bb L |
5170 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) |
| 5171 | && (!bfd_link_pic (info) | |
| 1c8f6a4d KLC |
5172 | || !SYMBOL_REFERENCES_LOCAL (info, h))) |
| 5173 | indx = h->dynindx; | |
| 5174 | } | |
| 5175 | else | |
| 5176 | { | |
| 5177 | /* Never happen currently. */ | |
| 5178 | BFD_ASSERT (local_got_offsets != NULL | |
| 5179 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
| 5180 | ||
| 5181 | off = local_got_offsets[r_symndx]; | |
| 5182 | ||
| 5183 | tls_type = elf32_nds32_local_got_tls_type (input_bfd)[r_symndx]; | |
| 5184 | } | |
| 5185 | relocation = sgot->output_section->vma + sgot->output_offset + off; | |
| 5186 | ||
| 5187 | if (r_type == R_NDS32_TLS_IE_LO12S2) | |
| 5188 | break; | |
| 5189 | ||
| 5190 | /* The offset must always be a multiple of 4. We use | |
| 5191 | the least significant bit to record whether we have | |
| 5192 | already processed this entry. */ | |
| 5193 | if ((off & 1) != 0) | |
| 5194 | off &= ~1; | |
| 5195 | else | |
| 5196 | { | |
| 5197 | bfd_boolean need_relocs = FALSE; | |
| ce558b89 | 5198 | srelgot = htab->root.srelgot; |
| 0e1862bb | 5199 | if ((bfd_link_pic (info) || indx != 0) |
| 1c8f6a4d KLC |
5200 | && (h == NULL |
| 5201 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 5202 | || h->root.type != bfd_link_hash_undefweak)) | |
| 5203 | { | |
| 5204 | need_relocs = TRUE; | |
| 5205 | BFD_ASSERT (srelgot != NULL); | |
| 5206 | } | |
| 5207 | if (tls_type & GOT_TLS_IE) | |
| 5208 | { | |
| 5209 | if (need_relocs) | |
| 5210 | { | |
| 5211 | if (h->dynindx == 0) | |
| 5212 | outrel.r_addend = relocation - dtpoff_base (info); | |
| 5213 | else | |
| 5214 | outrel.r_addend = 0; | |
| 5215 | outrel.r_offset = (sgot->output_section->vma | |
| 5216 | + sgot->output_offset | |
| 5217 | + off); | |
| 5218 | outrel.r_info = | |
| 5219 | ELF32_R_INFO (h->dynindx, R_NDS32_TLS_TPOFF); | |
| 5220 | ||
| 5221 | loc = srelgot->contents; | |
| 5222 | loc += | |
| 5223 | srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
| 5224 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
| 5225 | ++srelgot->reloc_count; | |
| 5226 | } | |
| 5227 | else | |
| 5228 | bfd_put_32 (output_bfd, h->root.u.def.value - TP_OFFSET, | |
| 5229 | sgot->contents + off); | |
| 5230 | } | |
| 5231 | } | |
| 5232 | } | |
| 5233 | break; | |
| 5234 | ||
| 35c08157 KLC |
5235 | /* DON'T fall through. */ |
| 5236 | ||
| 5237 | default: | |
| 5238 | /* OLD_NDS32_RELOC. */ | |
| 5239 | ||
| 5240 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
| 5241 | contents, offset, relocation, addend); | |
| 5242 | goto check_reloc; | |
| 5243 | } | |
| 5244 | ||
| 5245 | switch ((int) r_type) | |
| 5246 | { | |
| 5247 | case R_NDS32_20_RELA: | |
| 5248 | case R_NDS32_5_RELA: | |
| 5249 | case R_NDS32_9_PCREL_RELA: | |
| 5250 | case R_NDS32_WORD_9_PCREL_RELA: | |
| 5251 | case R_NDS32_10_UPCREL_RELA: | |
| 5252 | case R_NDS32_15_PCREL_RELA: | |
| 5253 | case R_NDS32_17_PCREL_RELA: | |
| 5254 | case R_NDS32_25_PCREL_RELA: | |
| 5255 | case R_NDS32_25_ABS_RELA: | |
| 5256 | case R_NDS32_HI20_RELA: | |
| 5257 | case R_NDS32_LO12S3_RELA: | |
| 5258 | case R_NDS32_LO12S2_RELA: | |
| 5259 | case R_NDS32_LO12S2_DP_RELA: | |
| 5260 | case R_NDS32_LO12S2_SP_RELA: | |
| 5261 | case R_NDS32_LO12S1_RELA: | |
| 5262 | case R_NDS32_LO12S0_RELA: | |
| 5263 | case R_NDS32_LO12S0_ORI_RELA: | |
| 5264 | case R_NDS32_SDA16S3_RELA: | |
| 5265 | case R_NDS32_SDA17S2_RELA: | |
| 5266 | case R_NDS32_SDA18S1_RELA: | |
| 5267 | case R_NDS32_SDA19S0_RELA: | |
| 5268 | case R_NDS32_SDA15S3_RELA: | |
| 5269 | case R_NDS32_SDA15S2_RELA: | |
| 5270 | case R_NDS32_SDA12S2_DP_RELA: | |
| 5271 | case R_NDS32_SDA12S2_SP_RELA: | |
| 5272 | case R_NDS32_SDA15S1_RELA: | |
| 5273 | case R_NDS32_SDA15S0_RELA: | |
| 5274 | case R_NDS32_SDA_FP7U2_RELA: | |
| 5275 | case R_NDS32_9_PLTREL: | |
| 5276 | case R_NDS32_25_PLTREL: | |
| 5277 | case R_NDS32_GOT20: | |
| 5278 | case R_NDS32_GOT_HI20: | |
| 5279 | case R_NDS32_GOT_LO12: | |
| 5280 | case R_NDS32_GOT_LO15: | |
| 5281 | case R_NDS32_GOT_LO19: | |
| 5282 | case R_NDS32_GOT15S2_RELA: | |
| 5283 | case R_NDS32_GOT17S2_RELA: | |
| 5284 | case R_NDS32_GOTPC20: | |
| 5285 | case R_NDS32_GOTPC_HI20: | |
| 5286 | case R_NDS32_GOTPC_LO12: | |
| 5287 | case R_NDS32_GOTOFF: | |
| 5288 | case R_NDS32_GOTOFF_HI20: | |
| 5289 | case R_NDS32_GOTOFF_LO12: | |
| 5290 | case R_NDS32_GOTOFF_LO15: | |
| 5291 | case R_NDS32_GOTOFF_LO19: | |
| 5292 | case R_NDS32_PLTREL_HI20: | |
| 5293 | case R_NDS32_PLTREL_LO12: | |
| 5294 | case R_NDS32_PLT_GOTREL_HI20: | |
| 5295 | case R_NDS32_PLT_GOTREL_LO12: | |
| 5296 | case R_NDS32_PLT_GOTREL_LO15: | |
| 5297 | case R_NDS32_PLT_GOTREL_LO19: | |
| 5298 | case R_NDS32_PLT_GOTREL_LO20: | |
| 5299 | case R_NDS32_17IFC_PCREL_RELA: | |
| 5300 | case R_NDS32_10IFCU_PCREL_RELA: | |
| 1c8f6a4d KLC |
5301 | case R_NDS32_TLS_LE_HI20: |
| 5302 | case R_NDS32_TLS_LE_LO12: | |
| 5303 | case R_NDS32_TLS_IE_HI20: | |
| 5304 | case R_NDS32_TLS_IE_LO12S2: | |
| 5305 | case R_NDS32_TLS_LE_20: | |
| 5306 | case R_NDS32_TLS_LE_15S0: | |
| 5307 | case R_NDS32_TLS_LE_15S1: | |
| 5308 | case R_NDS32_TLS_LE_15S2: | |
| 35c08157 | 5309 | /* Instruction related relocs must handle endian properly. */ |
| 1c8f6a4d | 5310 | /* NOTE: PIC IS NOT HANDLE YET; DO IT LATER. */ |
| 35c08157 KLC |
5311 | r = nds32_elf_final_link_relocate (howto, input_bfd, |
| 5312 | input_section, contents, | |
| 5313 | rel->r_offset, relocation, | |
| 5314 | rel->r_addend); | |
| 5315 | break; | |
| 5316 | ||
| 5317 | default: | |
| 5318 | /* All other relocs can use default handler. */ | |
| 5319 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
| 5320 | contents, rel->r_offset, | |
| 5321 | relocation, rel->r_addend); | |
| 5322 | break; | |
| 5323 | } | |
| 5324 | ||
| 5325 | check_reloc: | |
| 5326 | ||
| 5327 | if (r != bfd_reloc_ok) | |
| 5328 | { | |
| 5329 | /* FIXME: This should be generic enough to go in a utility. */ | |
| 5330 | const char *name; | |
| 5331 | ||
| 5332 | if (h != NULL) | |
| 5333 | name = h->root.root.string; | |
| 5334 | else | |
| 5335 | { | |
| 5336 | name = bfd_elf_string_from_elf_section | |
| 5337 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
| 5338 | if (name == NULL || *name == '\0') | |
| 5339 | name = bfd_section_name (input_bfd, sec); | |
| 5340 | } | |
| 5341 | ||
| 5342 | if (errmsg != NULL) | |
| 5343 | goto common_error; | |
| 5344 | ||
| 5345 | switch (r) | |
| 5346 | { | |
| 5347 | case bfd_reloc_overflow: | |
| 1a72702b AM |
5348 | (*info->callbacks->reloc_overflow) |
| 5349 | (info, (h ? &h->root : NULL), name, howto->name, | |
| 5350 | (bfd_vma) 0, input_bfd, input_section, offset); | |
| 35c08157 KLC |
5351 | break; |
| 5352 | ||
| 5353 | case bfd_reloc_undefined: | |
| 1a72702b AM |
5354 | (*info->callbacks->undefined_symbol) |
| 5355 | (info, name, input_bfd, input_section, offset, TRUE); | |
| 35c08157 KLC |
5356 | break; |
| 5357 | ||
| 5358 | case bfd_reloc_outofrange: | |
| 5359 | errmsg = _("internal error: out of range error"); | |
| 5360 | goto common_error; | |
| 5361 | ||
| 5362 | case bfd_reloc_notsupported: | |
| 5363 | errmsg = _("internal error: unsupported relocation error"); | |
| 5364 | goto common_error; | |
| 5365 | ||
| 5366 | case bfd_reloc_dangerous: | |
| 5367 | errmsg = _("internal error: dangerous error"); | |
| 5368 | goto common_error; | |
| 5369 | ||
| 5370 | default: | |
| 5371 | errmsg = _("internal error: unknown error"); | |
| 5372 | /* Fall through. */ | |
| 5373 | ||
| 1a72702b AM |
5374 | common_error: |
| 5375 | (*info->callbacks->warning) (info, errmsg, name, input_bfd, | |
| 5376 | input_section, offset); | |
| 35c08157 KLC |
5377 | break; |
| 5378 | } | |
| 5379 | } | |
| 5380 | } | |
| 5381 | ||
| 5382 | return ret; | |
| 5383 | } | |
| 5384 | ||
| 5385 | /* Finish up dynamic symbol handling. We set the contents of various | |
| 5386 | dynamic sections here. */ | |
| 5387 | ||
| 5388 | static bfd_boolean | |
| 5389 | nds32_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, | |
| 5390 | struct elf_link_hash_entry *h, Elf_Internal_Sym *sym) | |
| 5391 | { | |
| 5392 | struct elf_nds32_link_hash_table *htab; | |
| 5393 | bfd_byte *loc; | |
| 5394 | ||
| 5395 | htab = nds32_elf_hash_table (info); | |
| 5396 | ||
| 5397 | if (h->plt.offset != (bfd_vma) - 1) | |
| 5398 | { | |
| 5399 | asection *splt; | |
| 5400 | asection *sgot; | |
| 5401 | asection *srela; | |
| 5402 | ||
| 5403 | bfd_vma plt_index; | |
| 5404 | bfd_vma got_offset; | |
| 5405 | bfd_vma local_plt_offset; | |
| 5406 | Elf_Internal_Rela rela; | |
| 5407 | ||
| 5408 | /* This symbol has an entry in the procedure linkage table. Set | |
| 5409 | it up. */ | |
| 5410 | ||
| 5411 | BFD_ASSERT (h->dynindx != -1); | |
| 5412 | ||
| ce558b89 AM |
5413 | splt = htab->root.splt; |
| 5414 | sgot = htab->root.sgotplt; | |
| 5415 | srela = htab->root.srelplt; | |
| 35c08157 KLC |
5416 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); |
| 5417 | ||
| 5418 | /* Get the index in the procedure linkage table which | |
| 5419 | corresponds to this symbol. This is the index of this symbol | |
| 5420 | in all the symbols for which we are making plt entries. The | |
| 5421 | first entry in the procedure linkage table is reserved. */ | |
| 5422 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
| 5423 | ||
| 5424 | /* Get the offset into the .got table of the entry that | |
| 5425 | corresponds to this function. Each .got entry is 4 bytes. | |
| 5426 | The first three are reserved. */ | |
| 5427 | got_offset = (plt_index + 3) * 4; | |
| 5428 | ||
| 5429 | /* Fill in the entry in the procedure linkage table. */ | |
| 0e1862bb | 5430 | if (!bfd_link_pic (info)) |
| 35c08157 KLC |
5431 | { |
| 5432 | unsigned long insn; | |
| 5433 | ||
| 5434 | insn = PLT_ENTRY_WORD0 + (((sgot->output_section->vma | |
| 5435 | + sgot->output_offset + got_offset) >> 12) | |
| 5436 | & 0xfffff); | |
| 5437 | bfd_putb32 (insn, splt->contents + h->plt.offset); | |
| 5438 | ||
| 5439 | insn = PLT_ENTRY_WORD1 + (((sgot->output_section->vma | |
| 5440 | + sgot->output_offset + got_offset) & 0x0fff) | |
| 5441 | >> 2); | |
| 5442 | bfd_putb32 (insn, splt->contents + h->plt.offset + 4); | |
| 5443 | ||
| 5444 | insn = PLT_ENTRY_WORD2; | |
| 5445 | bfd_putb32 (insn, splt->contents + h->plt.offset + 8); | |
| 5446 | ||
| 5447 | insn = PLT_ENTRY_WORD3 + (plt_index & 0x7ffff); | |
| 5448 | bfd_putb32 (insn, splt->contents + h->plt.offset + 12); | |
| 5449 | ||
| 5450 | insn = PLT_ENTRY_WORD4 | |
| 5451 | + (((unsigned int) ((-(h->plt.offset + 16)) >> 1)) & 0xffffff); | |
| 5452 | bfd_putb32 (insn, splt->contents + h->plt.offset + 16); | |
| 5453 | local_plt_offset = 12; | |
| 5454 | } | |
| 5455 | else | |
| 5456 | { | |
| 5457 | /* sda_base must be set at this time. */ | |
| 5458 | unsigned long insn; | |
| 5459 | long offset; | |
| 5460 | ||
| 5461 | /* FIXME, sda_base is 65536, it will damage opcode. */ | |
| 5462 | /* insn = PLT_PIC_ENTRY_WORD0 + (((got_offset - sda_base) >> 2) & 0x7fff); */ | |
| 5463 | offset = sgot->output_section->vma + sgot->output_offset + got_offset | |
| 5464 | - elf_gp (output_bfd); | |
| 5465 | insn = PLT_PIC_ENTRY_WORD0 + ((offset >> 12) & 0xfffff); | |
| 5466 | bfd_putb32 (insn, splt->contents + h->plt.offset); | |
| 5467 | ||
| 5468 | insn = PLT_PIC_ENTRY_WORD1 + (offset & 0xfff); | |
| 5469 | bfd_putb32 (insn, splt->contents + h->plt.offset + 4); | |
| 5470 | ||
| 5471 | insn = PLT_PIC_ENTRY_WORD2; | |
| 5472 | bfd_putb32 (insn, splt->contents + h->plt.offset + 8); | |
| 5473 | ||
| 5474 | insn = PLT_PIC_ENTRY_WORD3; | |
| 5475 | bfd_putb32 (insn, splt->contents + h->plt.offset + 12); | |
| 5476 | ||
| 5477 | insn = PLT_PIC_ENTRY_WORD4 + (plt_index & 0x7fffff); | |
| 5478 | bfd_putb32 (insn, splt->contents + h->plt.offset + 16); | |
| 5479 | ||
| 5480 | insn = PLT_PIC_ENTRY_WORD5 | |
| 5481 | + (((unsigned int) ((-(h->plt.offset + 20)) >> 1)) & 0xffffff); | |
| 5482 | bfd_putb32 (insn, splt->contents + h->plt.offset + 20); | |
| 5483 | ||
| 5484 | local_plt_offset = 16; | |
| 5485 | } | |
| 5486 | ||
| 5487 | /* Fill in the entry in the global offset table, | |
| 5488 | so it will fall through to the next instruction for the first time. */ | |
| 5489 | bfd_put_32 (output_bfd, | |
| 5490 | (splt->output_section->vma + splt->output_offset | |
| 5491 | + h->plt.offset + local_plt_offset), | |
| 5492 | sgot->contents + got_offset); | |
| 5493 | ||
| 5494 | /* Fill in the entry in the .rela.plt section. */ | |
| 5495 | rela.r_offset = (sgot->output_section->vma | |
| 5496 | + sgot->output_offset + got_offset); | |
| 5497 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_JMP_SLOT); | |
| 5498 | rela.r_addend = 0; | |
| 5499 | loc = srela->contents; | |
| 5500 | loc += plt_index * sizeof (Elf32_External_Rela); | |
| 5501 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
| 5502 | ||
| 5503 | if (!h->def_regular) | |
| 5504 | { | |
| 5505 | /* Mark the symbol as undefined, rather than as defined in | |
| 5506 | the .plt section. Leave the value alone. */ | |
| 5507 | sym->st_shndx = SHN_UNDEF; | |
| 5508 | if (!h->ref_regular_nonweak) | |
| 5509 | sym->st_value = 0; | |
| 5510 | } | |
| 5511 | } | |
| 5512 | ||
| 5513 | if (h->got.offset != (bfd_vma) - 1) | |
| 5514 | { | |
| 5515 | asection *sgot; | |
| 5516 | asection *srela; | |
| 5517 | Elf_Internal_Rela rela; | |
| 5518 | ||
| 5519 | /* This symbol has an entry in the global offset table. | |
| 5520 | Set it up. */ | |
| 5521 | ||
| ce558b89 AM |
5522 | sgot = htab->root.sgot; |
| 5523 | srela = htab->root.srelgot; | |
| 35c08157 KLC |
5524 | BFD_ASSERT (sgot != NULL && srela != NULL); |
| 5525 | ||
| 5526 | rela.r_offset = (sgot->output_section->vma | |
| 5527 | + sgot->output_offset + (h->got.offset & ~1)); | |
| 5528 | ||
| 5529 | /* If this is a -Bsymbolic link, and the symbol is defined | |
| 5530 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
| 5531 | the symbol was forced to be local because of a version file. | |
| 5532 | The entry in the global offset table will already have been | |
| 5533 | initialized in the relocate_section function. */ | |
| 0e1862bb | 5534 | if (bfd_link_pic (info) |
| 35c08157 KLC |
5535 | && (info->symbolic |
| 5536 | || h->dynindx == -1 || h->forced_local) && h->def_regular) | |
| 5537 | { | |
| 5538 | rela.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
| 5539 | rela.r_addend = (h->root.u.def.value | |
| 5540 | + h->root.u.def.section->output_section->vma | |
| 5541 | + h->root.u.def.section->output_offset); | |
| 5542 | } | |
| 5543 | else | |
| 5544 | { | |
| 5545 | BFD_ASSERT ((h->got.offset & 1) == 0); | |
| 5546 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
| 5547 | sgot->contents + h->got.offset); | |
| 5548 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_GLOB_DAT); | |
| 5549 | rela.r_addend = 0; | |
| 5550 | } | |
| 5551 | ||
| 5552 | loc = srela->contents; | |
| 5553 | loc += srela->reloc_count * sizeof (Elf32_External_Rela); | |
| 5554 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
| 5555 | ++srela->reloc_count; | |
| 5556 | } | |
| 5557 | ||
| 5558 | if (h->needs_copy) | |
| 5559 | { | |
| 5560 | asection *s; | |
| 5561 | Elf_Internal_Rela rela; | |
| 5562 | ||
| 5563 | /* This symbols needs a copy reloc. Set it up. */ | |
| 5564 | ||
| 5565 | BFD_ASSERT (h->dynindx != -1 | |
| 5566 | && (h->root.type == bfd_link_hash_defined | |
| 5567 | || h->root.type == bfd_link_hash_defweak)); | |
| 5568 | ||
| 5569 | s = bfd_get_section_by_name (h->root.u.def.section->owner, ".rela.bss"); | |
| 5570 | BFD_ASSERT (s != NULL); | |
| 5571 | ||
| 5572 | rela.r_offset = (h->root.u.def.value | |
| 5573 | + h->root.u.def.section->output_section->vma | |
| 5574 | + h->root.u.def.section->output_offset); | |
| 5575 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_COPY); | |
| 5576 | rela.r_addend = 0; | |
| 5577 | loc = s->contents; | |
| 5578 | loc += s->reloc_count * sizeof (Elf32_External_Rela); | |
| 5579 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
| 5580 | ++s->reloc_count; | |
| 5581 | } | |
| 5582 | ||
| 5583 | /* Mark some specially defined symbols as absolute. */ | |
| 5584 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
| 5585 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
| 5586 | sym->st_shndx = SHN_ABS; | |
| 5587 | ||
| 5588 | return TRUE; | |
| 5589 | } | |
| 5590 | ||
| 5591 | ||
| 5592 | /* Finish up the dynamic sections. */ | |
| 5593 | ||
| 5594 | static bfd_boolean | |
| 5595 | nds32_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) | |
| 5596 | { | |
| 5597 | struct elf_nds32_link_hash_table *htab; | |
| 5598 | bfd *dynobj; | |
| 5599 | asection *sdyn; | |
| 5600 | asection *sgot; | |
| 5601 | ||
| 5602 | htab = nds32_elf_hash_table (info); | |
| 5603 | dynobj = htab->root.dynobj; | |
| 5604 | ||
| ce558b89 | 5605 | sgot = htab->root.sgotplt; |
| 35c08157 KLC |
5606 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
| 5607 | ||
| 5608 | if (htab->root.dynamic_sections_created) | |
| 5609 | { | |
| 5610 | asection *splt; | |
| 5611 | Elf32_External_Dyn *dyncon, *dynconend; | |
| 5612 | ||
| 5613 | BFD_ASSERT (sgot != NULL && sdyn != NULL); | |
| 5614 | ||
| 5615 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
| 5616 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
| 5617 | ||
| 5618 | for (; dyncon < dynconend; dyncon++) | |
| 5619 | { | |
| 5620 | Elf_Internal_Dyn dyn; | |
| 5621 | asection *s; | |
| 5622 | ||
| 5623 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 5624 | ||
| 5625 | switch (dyn.d_tag) | |
| 5626 | { | |
| 5627 | default: | |
| 5628 | break; | |
| 5629 | ||
| 5630 | case DT_PLTGOT: | |
| ce558b89 | 5631 | s = htab->root.sgotplt; |
| 35c08157 KLC |
5632 | goto get_vma; |
| 5633 | case DT_JMPREL: | |
| ce558b89 | 5634 | s = htab->root.srelplt; |
| 35c08157 | 5635 | get_vma: |
| 4ade44b7 | 5636 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 35c08157 KLC |
5637 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5638 | break; | |
| 5639 | ||
| 5640 | case DT_PLTRELSZ: | |
| ce558b89 | 5641 | s = htab->root.srelplt; |
| 35c08157 KLC |
5642 | dyn.d_un.d_val = s->size; |
| 5643 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
| 5644 | break; | |
| 35c08157 KLC |
5645 | } |
| 5646 | } | |
| 5647 | ||
| 5648 | /* Fill in the first entry in the procedure linkage table. */ | |
| ce558b89 | 5649 | splt = htab->root.splt; |
| 35c08157 KLC |
5650 | if (splt && splt->size > 0) |
| 5651 | { | |
| 0e1862bb | 5652 | if (bfd_link_pic (info)) |
| 35c08157 KLC |
5653 | { |
| 5654 | unsigned long insn; | |
| 5655 | long offset; | |
| 5656 | ||
| 5657 | /* FIXME, sda_base is 65536, it will damage opcode. */ | |
| 5658 | /* insn = PLT_PIC_ENTRY_WORD0 + (((got_offset - sda_base) >> 2) & 0x7fff); */ | |
| 5659 | offset = sgot->output_section->vma + sgot->output_offset + 4 | |
| 5660 | - elf_gp (output_bfd); | |
| 5661 | insn = PLT0_PIC_ENTRY_WORD0 | ((offset >> 12) & 0xfffff); | |
| 5662 | bfd_putb32 (insn, splt->contents); | |
| 5663 | ||
| 5664 | /* insn = PLT0_PIC_ENTRY_WORD0 | (((8 - sda_base) >> 2) & 0x7fff) ; */ | |
| 5665 | /* here has a typo? */ | |
| 5666 | insn = PLT0_PIC_ENTRY_WORD1 | (offset & 0xfff); | |
| 5667 | bfd_putb32 (insn, splt->contents + 4); | |
| 5668 | ||
| 5669 | insn = PLT0_PIC_ENTRY_WORD2; | |
| 5670 | bfd_putb32 (insn, splt->contents + 8); | |
| 5671 | ||
| 5672 | insn = PLT0_PIC_ENTRY_WORD3; | |
| 5673 | bfd_putb32 (insn, splt->contents + 12); | |
| 5674 | ||
| 5675 | insn = PLT0_PIC_ENTRY_WORD4; | |
| 5676 | bfd_putb32 (insn, splt->contents + 16); | |
| 5677 | ||
| 5678 | insn = PLT0_PIC_ENTRY_WORD5; | |
| 5679 | bfd_putb32 (insn, splt->contents + 20); | |
| 5680 | } | |
| 5681 | else | |
| 5682 | { | |
| 5683 | unsigned long insn; | |
| 5684 | unsigned long addr; | |
| 5685 | ||
| 5686 | /* addr = .got + 4 */ | |
| 5687 | addr = sgot->output_section->vma + sgot->output_offset + 4; | |
| 5688 | insn = PLT0_ENTRY_WORD0 | ((addr >> 12) & 0xfffff); | |
| 5689 | bfd_putb32 (insn, splt->contents); | |
| 5690 | ||
| 5691 | insn = PLT0_ENTRY_WORD1 | (addr & 0x0fff); | |
| 5692 | bfd_putb32 (insn, splt->contents + 4); | |
| 5693 | ||
| 5694 | insn = PLT0_ENTRY_WORD2; | |
| 5695 | bfd_putb32 (insn, splt->contents + 8); | |
| 5696 | ||
| 5697 | insn = PLT0_ENTRY_WORD3; | |
| 5698 | bfd_putb32 (insn, splt->contents + 12); | |
| 5699 | ||
| 5700 | insn = PLT0_ENTRY_WORD4; | |
| 5701 | bfd_putb32 (insn, splt->contents + 16); | |
| 5702 | } | |
| 5703 | ||
| 5704 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
| 5705 | PLT_ENTRY_SIZE; | |
| 5706 | } | |
| 5707 | } | |
| 5708 | ||
| 5709 | /* Fill in the first three entries in the global offset table. */ | |
| 5710 | if (sgot && sgot->size > 0) | |
| 5711 | { | |
| 5712 | if (sdyn == NULL) | |
| 5713 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
| 5714 | else | |
| 5715 | bfd_put_32 (output_bfd, | |
| 5716 | sdyn->output_section->vma + sdyn->output_offset, | |
| 5717 | sgot->contents); | |
| 5718 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); | |
| 5719 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
| 5720 | ||
| 5721 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
| 5722 | } | |
| 5723 | ||
| 5724 | return TRUE; | |
| 5725 | } | |
| 5726 | \f | |
| 5727 | ||
| 5728 | /* Set the right machine number. */ | |
| 5729 | ||
| 5730 | static bfd_boolean | |
| 5731 | nds32_elf_object_p (bfd *abfd) | |
| 5732 | { | |
| 5733 | static unsigned int cur_arch = 0; | |
| 5734 | ||
| 5735 | if (E_N1_ARCH != (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH)) | |
| 5736 | { | |
| 5737 | /* E_N1_ARCH is a wild card, so it is set only when no others exist. */ | |
| 5738 | cur_arch = (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH); | |
| 5739 | } | |
| 5740 | ||
| 5741 | switch (cur_arch) | |
| 5742 | { | |
| 5743 | default: | |
| 5744 | case E_N1_ARCH: | |
| 5745 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1); | |
| 5746 | break; | |
| 5747 | case E_N1H_ARCH: | |
| 5748 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h); | |
| 5749 | break; | |
| 5750 | case E_NDS_ARCH_STAR_V2_0: | |
| 5751 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v2); | |
| 5752 | break; | |
| 5753 | case E_NDS_ARCH_STAR_V3_0: | |
| 5754 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v3); | |
| 5755 | break; | |
| 5756 | case E_NDS_ARCH_STAR_V3_M: | |
| 5757 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v3m); | |
| 5758 | break; | |
| 5759 | } | |
| 5760 | ||
| 5761 | return TRUE; | |
| 5762 | } | |
| 5763 | ||
| 5764 | /* Store the machine number in the flags field. */ | |
| 5765 | ||
| 5766 | static void | |
| 5767 | nds32_elf_final_write_processing (bfd *abfd, | |
| 5768 | bfd_boolean linker ATTRIBUTE_UNUSED) | |
| 5769 | { | |
| 5770 | unsigned long val; | |
| 5771 | static unsigned int cur_mach = 0; | |
| 5772 | ||
| 5773 | if (bfd_mach_n1 != bfd_get_mach (abfd)) | |
| 5774 | { | |
| 5775 | cur_mach = bfd_get_mach (abfd); | |
| 5776 | } | |
| 5777 | ||
| 5778 | switch (cur_mach) | |
| 5779 | { | |
| 5780 | case bfd_mach_n1: | |
| 5781 | /* Only happen when object is empty, since the case is abandon. */ | |
| 5782 | val = E_N1_ARCH; | |
| 5783 | val |= E_NDS_ABI_AABI; | |
| 5784 | val |= E_NDS32_ELF_VER_1_4; | |
| 5785 | break; | |
| 5786 | case bfd_mach_n1h: | |
| 5787 | val = E_N1H_ARCH; | |
| 5788 | break; | |
| 5789 | case bfd_mach_n1h_v2: | |
| 5790 | val = E_NDS_ARCH_STAR_V2_0; | |
| 5791 | break; | |
| 5792 | case bfd_mach_n1h_v3: | |
| 5793 | val = E_NDS_ARCH_STAR_V3_0; | |
| 5794 | break; | |
| 5795 | case bfd_mach_n1h_v3m: | |
| 5796 | val = E_NDS_ARCH_STAR_V3_M; | |
| 5797 | break; | |
| 5798 | default: | |
| 5799 | val = 0; | |
| 5800 | break; | |
| 5801 | } | |
| 5802 | ||
| 5803 | elf_elfheader (abfd)->e_flags &= ~EF_NDS_ARCH; | |
| 5804 | elf_elfheader (abfd)->e_flags |= val; | |
| 5805 | } | |
| 5806 | ||
| 5807 | /* Function to keep NDS32 specific file flags. */ | |
| 5808 | ||
| 5809 | static bfd_boolean | |
| 5810 | nds32_elf_set_private_flags (bfd *abfd, flagword flags) | |
| 5811 | { | |
| 5812 | BFD_ASSERT (!elf_flags_init (abfd) | |
| 5813 | || elf_elfheader (abfd)->e_flags == flags); | |
| 5814 | ||
| 5815 | elf_elfheader (abfd)->e_flags = flags; | |
| 5816 | elf_flags_init (abfd) = TRUE; | |
| 5817 | return TRUE; | |
| 5818 | } | |
| 5819 | ||
| 5820 | static unsigned int | |
| 5821 | convert_e_flags (unsigned int e_flags, unsigned int arch) | |
| 5822 | { | |
| 5823 | if ((e_flags & EF_NDS_ARCH) == E_NDS_ARCH_STAR_V0_9) | |
| 5824 | { | |
| 5825 | /* From 0.9 to 1.0. */ | |
| 5826 | e_flags = (e_flags & (~EF_NDS_ARCH)) | E_NDS_ARCH_STAR_V1_0; | |
| 5827 | ||
| 5828 | /* Invert E_NDS32_HAS_NO_MAC_INST. */ | |
| 5829 | e_flags ^= E_NDS32_HAS_NO_MAC_INST; | |
| 5830 | if (arch == E_NDS_ARCH_STAR_V1_0) | |
| 5831 | { | |
| 5832 | /* Done. */ | |
| 5833 | return e_flags; | |
| 5834 | } | |
| 5835 | } | |
| 5836 | ||
| 5837 | /* From 1.0 to 2.0. */ | |
| 5838 | e_flags = (e_flags & (~EF_NDS_ARCH)) | E_NDS_ARCH_STAR_V2_0; | |
| 5839 | ||
| 5840 | /* Clear E_NDS32_HAS_MFUSR_PC_INST. */ | |
| 5841 | e_flags &= ~E_NDS32_HAS_MFUSR_PC_INST; | |
| 5842 | ||
| 5843 | /* Invert E_NDS32_HAS_NO_MAC_INST. */ | |
| 5844 | e_flags ^= E_NDS32_HAS_NO_MAC_INST; | |
| 5845 | return e_flags; | |
| 5846 | } | |
| 5847 | ||
| 5848 | static bfd_boolean | |
| 5849 | nds32_check_vec_size (bfd *ibfd) | |
| 5850 | { | |
| 5851 | static unsigned int nds32_vec_size = 0; | |
| 5852 | ||
| 5853 | asection *sec_t = NULL; | |
| 5854 | bfd_byte *contents = NULL; | |
| 5855 | ||
| 5856 | sec_t = bfd_get_section_by_name (ibfd, ".nds32_e_flags"); | |
| 5857 | ||
| 5858 | if (sec_t && sec_t->size >= 4) | |
| 5859 | { | |
| 5860 | /* Get vec_size in file. */ | |
| 5861 | unsigned int flag_t; | |
| 5862 | ||
| 0c4bd9d9 | 5863 | nds32_get_section_contents (ibfd, sec_t, &contents, TRUE); |
| 35c08157 KLC |
5864 | flag_t = bfd_get_32 (ibfd, contents); |
| 5865 | ||
| 5866 | /* The value could only be 4 or 16. */ | |
| 5867 | ||
| 5868 | if (!nds32_vec_size) | |
| 5869 | /* Set if not set yet. */ | |
| 5870 | nds32_vec_size = (flag_t & 0x3); | |
| 5871 | else if (nds32_vec_size != (flag_t & 0x3)) | |
| 5872 | { | |
| 4eca0228 | 5873 | _bfd_error_handler |
| 695344c0 | 5874 | /* xgettext:c-format */ |
| 4eca0228 AM |
5875 | (_("%B: ISR vector size mismatch" |
| 5876 | " with previous modules, previous %u-byte, current %u-byte"), | |
| 5877 | ibfd, | |
| 5878 | nds32_vec_size == 1 ? 4 : nds32_vec_size == 2 ? 16 : 0xffffffff, | |
| 5879 | (flag_t & 0x3) == 1 ? 4 : (flag_t & 0x3) == 2 ? 16 : 0xffffffff); | |
| 35c08157 KLC |
5880 | return FALSE; |
| 5881 | } | |
| 5882 | else | |
| 5883 | /* Only keep the first vec_size section. */ | |
| 5884 | sec_t->flags |= SEC_EXCLUDE; | |
| 5885 | } | |
| 5886 | ||
| 5887 | return TRUE; | |
| 5888 | } | |
| 5889 | ||
| 5890 | /* Merge backend specific data from an object file to the output | |
| 5891 | object file when linking. */ | |
| 5892 | ||
| 5893 | static bfd_boolean | |
| 50e03d47 | 5894 | nds32_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| 35c08157 | 5895 | { |
| 50e03d47 | 5896 | bfd *obfd = info->output_bfd; |
| 35c08157 KLC |
5897 | flagword out_flags; |
| 5898 | flagword in_flags; | |
| 5899 | flagword out_16regs; | |
| 5900 | flagword in_no_mac; | |
| 5901 | flagword out_no_mac; | |
| 5902 | flagword in_16regs; | |
| 5903 | flagword out_version; | |
| 5904 | flagword in_version; | |
| 5905 | flagword out_fpu_config; | |
| 5906 | flagword in_fpu_config; | |
| 5907 | ||
| 5908 | /* TODO: Revise to use object-attributes instead. */ | |
| 5909 | if (!nds32_check_vec_size (ibfd)) | |
| 5910 | return FALSE; | |
| 5911 | ||
| 5912 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
| 5913 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
| 5914 | return TRUE; | |
| 5915 | ||
| 5916 | if (bfd_little_endian (ibfd) != bfd_little_endian (obfd)) | |
| 5917 | { | |
| 4eca0228 | 5918 | _bfd_error_handler |
| 35c08157 KLC |
5919 | (_("%B: warning: Endian mismatch with previous modules."), ibfd); |
| 5920 | ||
| 5921 | bfd_set_error (bfd_error_bad_value); | |
| 5922 | return FALSE; | |
| 5923 | } | |
| 5924 | ||
| 5925 | in_version = elf_elfheader (ibfd)->e_flags & EF_NDS32_ELF_VERSION; | |
| 5926 | if (in_version == E_NDS32_ELF_VER_1_2) | |
| 5927 | { | |
| 4eca0228 | 5928 | _bfd_error_handler |
| 35c08157 KLC |
5929 | (_("%B: warning: Older version of object file encountered, " |
| 5930 | "Please recompile with current tool chain."), ibfd); | |
| 5931 | } | |
| 5932 | ||
| 5933 | /* We may need to merge V1 and V2 arch object files to V2. */ | |
| 5934 | if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
| 5935 | != (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)) | |
| 5936 | { | |
| 5937 | /* Need to convert version. */ | |
| 5938 | if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
| 5939 | == E_NDS_ARCH_STAR_RESERVED) | |
| 5940 | { | |
| 5941 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
| 5942 | } | |
| 5943 | else if ((elf_elfheader (obfd)->e_flags & EF_NDS_ARCH) == E_NDS_ARCH_STAR_V0_9 | |
| 5944 | || (elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
| 5945 | > (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)) | |
| 5946 | { | |
| 5947 | elf_elfheader (obfd)->e_flags = | |
| 5948 | convert_e_flags (elf_elfheader (obfd)->e_flags, | |
| 5949 | (elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH)); | |
| 5950 | } | |
| 5951 | else | |
| 5952 | { | |
| 5953 | elf_elfheader (ibfd)->e_flags = | |
| 5954 | convert_e_flags (elf_elfheader (ibfd)->e_flags, | |
| 5955 | (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)); | |
| 5956 | } | |
| 5957 | } | |
| 5958 | ||
| 5959 | /* Extract some flags. */ | |
| 5960 | in_flags = elf_elfheader (ibfd)->e_flags | |
| 5961 | & (~(E_NDS32_HAS_REDUCED_REGS | EF_NDS32_ELF_VERSION | |
| 5962 | | E_NDS32_HAS_NO_MAC_INST | E_NDS32_FPU_REG_CONF)); | |
| 5963 | ||
| 5964 | /* The following flags need special treatment. */ | |
| 5965 | in_16regs = elf_elfheader (ibfd)->e_flags & E_NDS32_HAS_REDUCED_REGS; | |
| 5966 | in_no_mac = elf_elfheader (ibfd)->e_flags & E_NDS32_HAS_NO_MAC_INST; | |
| 5967 | in_fpu_config = elf_elfheader (ibfd)->e_flags & E_NDS32_FPU_REG_CONF; | |
| 5968 | ||
| 5969 | /* Extract some flags. */ | |
| 5970 | out_flags = elf_elfheader (obfd)->e_flags | |
| 5971 | & (~(E_NDS32_HAS_REDUCED_REGS | EF_NDS32_ELF_VERSION | |
| 5972 | | E_NDS32_HAS_NO_MAC_INST | E_NDS32_FPU_REG_CONF)); | |
| 5973 | ||
| 5974 | /* The following flags need special treatment. */ | |
| 5975 | out_16regs = elf_elfheader (obfd)->e_flags & E_NDS32_HAS_REDUCED_REGS; | |
| 5976 | out_no_mac = elf_elfheader (obfd)->e_flags & E_NDS32_HAS_NO_MAC_INST; | |
| 5977 | out_fpu_config = elf_elfheader (obfd)->e_flags & E_NDS32_FPU_REG_CONF; | |
| 5978 | out_version = elf_elfheader (obfd)->e_flags & EF_NDS32_ELF_VERSION; | |
| 5979 | if (!elf_flags_init (obfd)) | |
| 5980 | { | |
| 5981 | /* If the input is the default architecture then do not | |
| 5982 | bother setting the flags for the output architecture, | |
| 5983 | instead allow future merges to do this. If no future | |
| 5984 | merges ever set these flags then they will retain their | |
| 5985 | unitialised values, which surprise surprise, correspond | |
| 5986 | to the default values. */ | |
| 5987 | if (bfd_get_arch_info (ibfd)->the_default) | |
| 5988 | return TRUE; | |
| 5989 | ||
| 5990 | elf_flags_init (obfd) = TRUE; | |
| 5991 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
| 5992 | ||
| 5993 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
| 5994 | && bfd_get_arch_info (obfd)->the_default) | |
| 5995 | { | |
| 5996 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
| 5997 | bfd_get_mach (ibfd)); | |
| 5998 | } | |
| 5999 | ||
| 6000 | return TRUE; | |
| 6001 | } | |
| 6002 | ||
| 6003 | /* Check flag compatibility. */ | |
| 6004 | if ((in_flags & EF_NDS_ABI) != (out_flags & EF_NDS_ABI)) | |
| 6005 | { | |
| 4eca0228 | 6006 | _bfd_error_handler |
| 35c08157 KLC |
6007 | (_("%B: error: ABI mismatch with previous modules."), ibfd); |
| 6008 | ||
| 6009 | bfd_set_error (bfd_error_bad_value); | |
| 6010 | return FALSE; | |
| 6011 | } | |
| 6012 | ||
| 6013 | if ((in_flags & EF_NDS_ARCH) != (out_flags & EF_NDS_ARCH)) | |
| 6014 | { | |
| 6015 | if (((in_flags & EF_NDS_ARCH) != E_N1_ARCH)) | |
| 6016 | { | |
| 4eca0228 | 6017 | _bfd_error_handler |
| 35c08157 KLC |
6018 | (_("%B: error: Instruction set mismatch with previous modules."), ibfd); |
| 6019 | ||
| 6020 | bfd_set_error (bfd_error_bad_value); | |
| 6021 | return FALSE; | |
| 6022 | } | |
| 6023 | } | |
| 6024 | ||
| 6025 | /* When linking with V1.2 and V1.3 objects together the output is V1.2. | |
| 6026 | and perf ext1 and DIV are mergerd to perf ext1. */ | |
| 6027 | if (in_version == E_NDS32_ELF_VER_1_2 || out_version == E_NDS32_ELF_VER_1_2) | |
| 6028 | { | |
| 6029 | elf_elfheader (obfd)->e_flags = | |
| 6030 | (in_flags & (~(E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
| 6031 | | (out_flags & (~(E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
| 6032 | | (((in_flags & (E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
| 6033 | ? E_NDS32_HAS_EXT_INST : 0) | |
| 6034 | | (((out_flags & (E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
| 6035 | ? E_NDS32_HAS_EXT_INST : 0) | |
| 6036 | | (in_16regs & out_16regs) | (in_no_mac & out_no_mac) | |
| 6037 | | ((in_version > out_version) ? out_version : in_version); | |
| 6038 | } | |
| 6039 | else | |
| 6040 | { | |
| 6041 | if (in_version != out_version) | |
| 4eca0228 | 6042 | _bfd_error_handler |
| 695344c0 | 6043 | /* xgettext:c-format */ |
| 4eca0228 AM |
6044 | (_("%B: warning: Incompatible elf-versions %s and %s."), |
| 6045 | ibfd, nds32_elfver_strtab[out_version], | |
| 6046 | nds32_elfver_strtab[in_version]); | |
| 35c08157 KLC |
6047 | |
| 6048 | elf_elfheader (obfd)->e_flags = in_flags | out_flags | |
| 6049 | | (in_16regs & out_16regs) | (in_no_mac & out_no_mac) | |
| 6050 | | (in_fpu_config > out_fpu_config ? in_fpu_config : out_fpu_config) | |
| 6051 | | (in_version > out_version ? out_version : in_version); | |
| 6052 | } | |
| 6053 | ||
| 6054 | return TRUE; | |
| 6055 | } | |
| 6056 | ||
| 6057 | /* Display the flags field. */ | |
| 6058 | ||
| 6059 | static bfd_boolean | |
| 6060 | nds32_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 6061 | { | |
| 6062 | FILE *file = (FILE *) ptr; | |
| 6063 | ||
| 6064 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
| 6065 | ||
| 6066 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6067 | ||
| 6068 | fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags); | |
| 6069 | ||
| 6070 | switch (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH) | |
| 6071 | { | |
| 6072 | default: | |
| 6073 | case E_N1_ARCH: | |
| 6074 | fprintf (file, _(": n1 instructions")); | |
| 6075 | break; | |
| 6076 | case E_N1H_ARCH: | |
| 6077 | fprintf (file, _(": n1h instructions")); | |
| 6078 | break; | |
| 6079 | } | |
| 6080 | ||
| 6081 | fputc ('\n', file); | |
| 6082 | ||
| 6083 | return TRUE; | |
| 6084 | } | |
| 6085 | ||
| 6086 | static unsigned int | |
| 6087 | nds32_elf_action_discarded (asection *sec) | |
| 6088 | { | |
| 6089 | ||
| 6090 | if (strncmp | |
| 6091 | (".gcc_except_table", sec->name, sizeof (".gcc_except_table") - 1) == 0) | |
| 6092 | return 0; | |
| 6093 | ||
| 6094 | return _bfd_elf_default_action_discarded (sec); | |
| 6095 | } | |
| 6096 | ||
| 6097 | static asection * | |
| 6098 | nds32_elf_gc_mark_hook (asection *sec, struct bfd_link_info *info, | |
| 6099 | Elf_Internal_Rela *rel, struct elf_link_hash_entry *h, | |
| 6100 | Elf_Internal_Sym *sym) | |
| 6101 | { | |
| 6102 | if (h != NULL) | |
| 6103 | switch (ELF32_R_TYPE (rel->r_info)) | |
| 6104 | { | |
| 6105 | case R_NDS32_GNU_VTINHERIT: | |
| 6106 | case R_NDS32_GNU_VTENTRY: | |
| 6107 | case R_NDS32_RELA_GNU_VTINHERIT: | |
| 6108 | case R_NDS32_RELA_GNU_VTENTRY: | |
| 6109 | return NULL; | |
| 6110 | } | |
| 6111 | ||
| 6112 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
| 6113 | } | |
| 6114 | ||
| 35c08157 KLC |
6115 | /* Look through the relocs for a section during the first phase. |
| 6116 | Since we don't do .gots or .plts, we just need to consider the | |
| 6117 | virtual table relocs for gc. */ | |
| 6118 | ||
| 6119 | static bfd_boolean | |
| 6120 | nds32_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, | |
| 6121 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 6122 | { | |
| 6123 | Elf_Internal_Shdr *symtab_hdr; | |
| 6124 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
| 6125 | const Elf_Internal_Rela *rel; | |
| 6126 | const Elf_Internal_Rela *rel_end; | |
| 6127 | struct elf_nds32_link_hash_table *htab; | |
| 6128 | bfd *dynobj; | |
| 6129 | asection *sreloc = NULL; | |
| 6130 | ||
| 0e1862bb | 6131 | if (bfd_link_relocatable (info)) |
| 35c08157 KLC |
6132 | return TRUE; |
| 6133 | ||
| 6134 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
| 6135 | sym_hashes = elf_sym_hashes (abfd); | |
| 6136 | sym_hashes_end = | |
| 6137 | sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
| 6138 | if (!elf_bad_symtab (abfd)) | |
| 6139 | sym_hashes_end -= symtab_hdr->sh_info; | |
| 6140 | ||
| 6141 | htab = nds32_elf_hash_table (info); | |
| 6142 | dynobj = htab->root.dynobj; | |
| 6143 | ||
| 6144 | rel_end = relocs + sec->reloc_count; | |
| 6145 | for (rel = relocs; rel < rel_end; rel++) | |
| 6146 | { | |
| 6147 | enum elf_nds32_reloc_type r_type; | |
| 6148 | struct elf_link_hash_entry *h; | |
| 6149 | unsigned long r_symndx; | |
| 1c8f6a4d | 6150 | int tls_type, old_tls_type; |
| 35c08157 KLC |
6151 | |
| 6152 | r_symndx = ELF32_R_SYM (rel->r_info); | |
| 6153 | r_type = ELF32_R_TYPE (rel->r_info); | |
| 6154 | if (r_symndx < symtab_hdr->sh_info) | |
| 6155 | h = NULL; | |
| 6156 | else | |
| 6157 | { | |
| 6158 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| 6159 | while (h->root.type == bfd_link_hash_indirect | |
| 6160 | || h->root.type == bfd_link_hash_warning) | |
| 6161 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 6162 | } | |
| 6163 | ||
| 1c8f6a4d KLC |
6164 | /* Some relocs require a global offset table. We create |
| 6165 | got section here, since these relocation need got section | |
| 6166 | and it is not created yet. */ | |
| ce558b89 | 6167 | if (htab->root.sgot == NULL) |
| 35c08157 KLC |
6168 | { |
| 6169 | switch (r_type) | |
| 6170 | { | |
| 6171 | case R_NDS32_GOT_HI20: | |
| 6172 | case R_NDS32_GOT_LO12: | |
| 6173 | case R_NDS32_GOT_LO15: | |
| 6174 | case R_NDS32_GOT_LO19: | |
| 6175 | case R_NDS32_GOT17S2_RELA: | |
| 6176 | case R_NDS32_GOT15S2_RELA: | |
| 6177 | case R_NDS32_GOTOFF: | |
| 6178 | case R_NDS32_GOTOFF_HI20: | |
| 6179 | case R_NDS32_GOTOFF_LO12: | |
| 6180 | case R_NDS32_GOTOFF_LO15: | |
| 6181 | case R_NDS32_GOTOFF_LO19: | |
| 6182 | case R_NDS32_GOTPC20: | |
| 6183 | case R_NDS32_GOTPC_HI20: | |
| 6184 | case R_NDS32_GOTPC_LO12: | |
| 6185 | case R_NDS32_GOT20: | |
| 1c8f6a4d KLC |
6186 | case R_NDS32_TLS_IE_HI20: |
| 6187 | case R_NDS32_TLS_IE_LO12S2: | |
| 35c08157 KLC |
6188 | if (dynobj == NULL) |
| 6189 | htab->root.dynobj = dynobj = abfd; | |
| ce558b89 | 6190 | if (!_bfd_elf_create_got_section (dynobj, info)) |
| 35c08157 KLC |
6191 | return FALSE; |
| 6192 | break; | |
| 6193 | ||
| 6194 | default: | |
| 6195 | break; | |
| 6196 | } | |
| 6197 | } | |
| 6198 | ||
| 6199 | switch ((int) r_type) | |
| 6200 | { | |
| 6201 | case R_NDS32_GOT_HI20: | |
| 6202 | case R_NDS32_GOT_LO12: | |
| 6203 | case R_NDS32_GOT_LO15: | |
| 6204 | case R_NDS32_GOT_LO19: | |
| 6205 | case R_NDS32_GOT20: | |
| 1c8f6a4d KLC |
6206 | case R_NDS32_TLS_IE_HI20: |
| 6207 | case R_NDS32_TLS_IE_LO12S2: | |
| 6208 | switch (r_type) | |
| 6209 | { | |
| 6210 | case R_NDS32_TLS_IE_HI20: | |
| 6211 | case R_NDS32_TLS_IE_LO12S2: | |
| 6212 | tls_type = GOT_TLS_IE; | |
| 6213 | break; | |
| 6214 | default: | |
| 6215 | tls_type = GOT_NORMAL; | |
| 6216 | break; | |
| 6217 | } | |
| 35c08157 | 6218 | if (h != NULL) |
| 1c8f6a4d KLC |
6219 | { |
| 6220 | old_tls_type = elf32_nds32_hash_entry (h)->tls_type; | |
| 6221 | h->got.refcount += 1; | |
| 6222 | } | |
| 35c08157 KLC |
6223 | else |
| 6224 | { | |
| 6225 | bfd_signed_vma *local_got_refcounts; | |
| 6226 | ||
| 6227 | /* This is a global offset table entry for a local | |
| 6228 | symbol. */ | |
| 6229 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
| 6230 | if (local_got_refcounts == NULL) | |
| 6231 | { | |
| 6232 | bfd_size_type size; | |
| 6233 | ||
| 6234 | size = symtab_hdr->sh_info; | |
| 6235 | size *= sizeof (bfd_signed_vma); | |
| 6236 | local_got_refcounts = (bfd_signed_vma *) bfd_zalloc (abfd, size); | |
| 6237 | if (local_got_refcounts == NULL) | |
| 6238 | return FALSE; | |
| 6239 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
| 6240 | } | |
| 6241 | local_got_refcounts[r_symndx] += 1; | |
| 1c8f6a4d | 6242 | old_tls_type = elf32_nds32_local_got_tls_type (abfd)[r_symndx]; |
| 35c08157 | 6243 | } |
| 35c08157 | 6244 | |
| 1c8f6a4d KLC |
6245 | /* We will already have issued an error message if there |
| 6246 | is a TLS/non-TLS mismatch, based on the symbol | |
| 6247 | type. So just combine any TLS types needed. */ | |
| 6248 | if (old_tls_type != GOT_UNKNOWN && old_tls_type != GOT_NORMAL | |
| 6249 | && tls_type != GOT_NORMAL) | |
| 6250 | tls_type |= old_tls_type; | |
| 6251 | ||
| 6252 | if (old_tls_type != tls_type) | |
| 6253 | { | |
| 6254 | if (h != NULL) | |
| 6255 | elf32_nds32_hash_entry (h)->tls_type = tls_type; | |
| 6256 | else | |
| 6257 | elf32_nds32_local_got_tls_type (abfd)[r_symndx] = tls_type; | |
| 6258 | } | |
| 6259 | break; | |
| 6260 | case R_NDS32_9_PLTREL: | |
| 35c08157 KLC |
6261 | case R_NDS32_25_PLTREL: |
| 6262 | case R_NDS32_PLTREL_HI20: | |
| 6263 | case R_NDS32_PLTREL_LO12: | |
| 6264 | case R_NDS32_PLT_GOTREL_HI20: | |
| 6265 | case R_NDS32_PLT_GOTREL_LO12: | |
| 6266 | case R_NDS32_PLT_GOTREL_LO15: | |
| 6267 | case R_NDS32_PLT_GOTREL_LO19: | |
| 6268 | case R_NDS32_PLT_GOTREL_LO20: | |
| 6269 | ||
| 6270 | /* This symbol requires a procedure linkage table entry. We | |
| 6271 | actually build the entry in adjust_dynamic_symbol, | |
| 6272 | because this might be a case of linking PIC code without | |
| 6273 | linking in any dynamic objects, in which case we don't | |
| 6274 | need to generate a procedure linkage table after all. */ | |
| 6275 | ||
| 6276 | /* If this is a local symbol, we resolve it directly without | |
| 6277 | creating a procedure linkage table entry. */ | |
| 6278 | if (h == NULL) | |
| 6279 | continue; | |
| 6280 | ||
| 6281 | if (h->forced_local) | |
| 6282 | break; | |
| 6283 | ||
| 1c8f6a4d | 6284 | elf32_nds32_hash_entry (h)->tls_type = GOT_NORMAL; |
| 35c08157 KLC |
6285 | h->needs_plt = 1; |
| 6286 | h->plt.refcount += 1; | |
| 6287 | break; | |
| 6288 | ||
| 6289 | case R_NDS32_16_RELA: | |
| 6290 | case R_NDS32_20_RELA: | |
| 6291 | case R_NDS32_5_RELA: | |
| 6292 | case R_NDS32_32_RELA: | |
| 6293 | case R_NDS32_HI20_RELA: | |
| 6294 | case R_NDS32_LO12S3_RELA: | |
| 6295 | case R_NDS32_LO12S2_RELA: | |
| 6296 | case R_NDS32_LO12S2_DP_RELA: | |
| 6297 | case R_NDS32_LO12S2_SP_RELA: | |
| 6298 | case R_NDS32_LO12S1_RELA: | |
| 6299 | case R_NDS32_LO12S0_RELA: | |
| 6300 | case R_NDS32_LO12S0_ORI_RELA: | |
| 6301 | case R_NDS32_SDA16S3_RELA: | |
| 6302 | case R_NDS32_SDA17S2_RELA: | |
| 6303 | case R_NDS32_SDA18S1_RELA: | |
| 6304 | case R_NDS32_SDA19S0_RELA: | |
| 6305 | case R_NDS32_SDA15S3_RELA: | |
| 6306 | case R_NDS32_SDA15S2_RELA: | |
| 6307 | case R_NDS32_SDA12S2_DP_RELA: | |
| 6308 | case R_NDS32_SDA12S2_SP_RELA: | |
| 6309 | case R_NDS32_SDA15S1_RELA: | |
| 6310 | case R_NDS32_SDA15S0_RELA: | |
| 6311 | case R_NDS32_SDA_FP7U2_RELA: | |
| 6312 | case R_NDS32_15_PCREL_RELA: | |
| 6313 | case R_NDS32_17_PCREL_RELA: | |
| 6314 | case R_NDS32_25_PCREL_RELA: | |
| 6315 | ||
| 0e1862bb | 6316 | if (h != NULL && !bfd_link_pic (info)) |
| 35c08157 KLC |
6317 | { |
| 6318 | h->non_got_ref = 1; | |
| 6319 | h->plt.refcount += 1; | |
| 6320 | } | |
| 6321 | ||
| 6322 | /* If we are creating a shared library, and this is a reloc against | |
| 6323 | a global symbol, or a non PC relative reloc against a local | |
| 6324 | symbol, then we need to copy the reloc into the shared library. | |
| 6325 | However, if we are linking with -Bsymbolic, we do not need to | |
| 6326 | copy a reloc against a global symbol which is defined in an | |
| 6327 | object we are including in the link (i.e., DEF_REGULAR is set). | |
| 6328 | At this point we have not seen all the input files, so it is | |
| 6329 | possible that DEF_REGULAR is not set now but will be set later | |
| 6330 | (it is never cleared). We account for that possibility below by | |
| 6331 | storing information in the dyn_relocs field of the hash table | |
| 6332 | entry. A similar situation occurs when creating shared libraries | |
| 6333 | and symbol visibility changes render the symbol local. | |
| 6334 | ||
| 6335 | If on the other hand, we are creating an executable, we may need | |
| 6336 | to keep relocations for symbols satisfied by a dynamic library | |
| 6337 | if we manage to avoid copy relocs for the symbol. */ | |
| 0e1862bb | 6338 | if ((bfd_link_pic (info) |
| 35c08157 KLC |
6339 | && (sec->flags & SEC_ALLOC) != 0 |
| 6340 | && ((r_type != R_NDS32_25_PCREL_RELA | |
| 6341 | && r_type != R_NDS32_15_PCREL_RELA | |
| 6342 | && r_type != R_NDS32_17_PCREL_RELA | |
| 6343 | && !(r_type == R_NDS32_32_RELA | |
| 6344 | && strcmp (sec->name, ".eh_frame") == 0)) | |
| 6345 | || (h != NULL | |
| 6346 | && (!info->symbolic | |
| 6347 | || h->root.type == bfd_link_hash_defweak | |
| 6348 | || !h->def_regular)))) | |
| 0e1862bb | 6349 | || (!bfd_link_pic (info) |
| 35c08157 KLC |
6350 | && (sec->flags & SEC_ALLOC) != 0 |
| 6351 | && h != NULL | |
| 6352 | && (h->root.type == bfd_link_hash_defweak | |
| 6353 | || !h->def_regular))) | |
| 6354 | { | |
| 6355 | struct elf_nds32_dyn_relocs *p; | |
| 6356 | struct elf_nds32_dyn_relocs **head; | |
| 6357 | ||
| 6358 | if (dynobj == NULL) | |
| 6359 | htab->root.dynobj = dynobj = abfd; | |
| 6360 | ||
| 6361 | /* When creating a shared object, we must copy these | |
| 6362 | relocs into the output file. We create a reloc | |
| 6363 | section in dynobj and make room for the reloc. */ | |
| 6364 | if (sreloc == NULL) | |
| 6365 | { | |
| 6366 | const char *name; | |
| 6367 | ||
| 6368 | name = bfd_elf_string_from_elf_section | |
| 6369 | (abfd, elf_elfheader (abfd)->e_shstrndx, | |
| 6370 | elf_section_data (sec)->rela.hdr->sh_name); | |
| 6371 | if (name == NULL) | |
| 6372 | return FALSE; | |
| 6373 | ||
| 6374 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
| 6375 | && strcmp (bfd_get_section_name (abfd, sec), | |
| 6376 | name + 5) == 0); | |
| 6377 | ||
| 6378 | sreloc = bfd_get_section_by_name (dynobj, name); | |
| 6379 | if (sreloc == NULL) | |
| 6380 | { | |
| 6381 | flagword flags; | |
| 6382 | ||
| 6383 | sreloc = bfd_make_section (dynobj, name); | |
| 6384 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
| 6385 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 6386 | if ((sec->flags & SEC_ALLOC) != 0) | |
| 6387 | flags |= SEC_ALLOC | SEC_LOAD; | |
| 6388 | if (sreloc == NULL | |
| 6389 | || !bfd_set_section_flags (dynobj, sreloc, flags) | |
| 6390 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
| 6391 | return FALSE; | |
| 6392 | ||
| 6393 | elf_section_type (sreloc) = SHT_RELA; | |
| 6394 | } | |
| 6395 | elf_section_data (sec)->sreloc = sreloc; | |
| 6396 | } | |
| 6397 | ||
| 6398 | /* If this is a global symbol, we count the number of | |
| 6399 | relocations we need for this symbol. */ | |
| 6400 | if (h != NULL) | |
| 6401 | head = &((struct elf_nds32_link_hash_entry *) h)->dyn_relocs; | |
| 6402 | else | |
| 6403 | { | |
| 6404 | asection *s; | |
| 61034b0b | 6405 | void *vpp; |
| 35c08157 KLC |
6406 | |
| 6407 | Elf_Internal_Sym *isym; | |
| 6408 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, abfd, r_symndx); | |
| 6409 | if (isym == NULL) | |
| 6410 | return FALSE; | |
| 6411 | ||
| 6412 | /* Track dynamic relocs needed for local syms too. */ | |
| 6413 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 6414 | if (s == NULL) | |
| 6415 | return FALSE; | |
| 6416 | ||
| 61034b0b MR |
6417 | vpp = &elf_section_data (s)->local_dynrel; |
| 6418 | head = (struct elf_nds32_dyn_relocs **) vpp; | |
| 35c08157 KLC |
6419 | } |
| 6420 | ||
| 6421 | p = *head; | |
| 6422 | if (p == NULL || p->sec != sec) | |
| 6423 | { | |
| 6424 | bfd_size_type amt = sizeof (*p); | |
| 6425 | p = (struct elf_nds32_dyn_relocs *) bfd_alloc (dynobj, amt); | |
| 6426 | if (p == NULL) | |
| 6427 | return FALSE; | |
| 6428 | p->next = *head; | |
| 6429 | *head = p; | |
| 6430 | p->sec = sec; | |
| 6431 | p->count = 0; | |
| 6432 | p->pc_count = 0; | |
| 6433 | } | |
| 6434 | ||
| 6435 | p->count += 1; | |
| 6436 | if (ELF32_R_TYPE (rel->r_info) == R_NDS32_25_PCREL_RELA | |
| 6437 | || ELF32_R_TYPE (rel->r_info) == R_NDS32_15_PCREL_RELA | |
| 6438 | || ELF32_R_TYPE (rel->r_info) == R_NDS32_17_PCREL_RELA) | |
| 6439 | p->pc_count += 1; | |
| 6440 | } | |
| 6441 | break; | |
| 6442 | ||
| 6443 | /* This relocation describes the C++ object vtable hierarchy. | |
| 6444 | Reconstruct it for later use during GC. */ | |
| 6445 | case R_NDS32_RELA_GNU_VTINHERIT: | |
| 6446 | case R_NDS32_GNU_VTINHERIT: | |
| 6447 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
| 6448 | return FALSE; | |
| 6449 | break; | |
| 6450 | ||
| 6451 | /* This relocation describes which C++ vtable entries are actually | |
| 6452 | used. Record for later use during GC. */ | |
| 6453 | case R_NDS32_GNU_VTENTRY: | |
| 6454 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) | |
| 6455 | return FALSE; | |
| 6456 | break; | |
| 6457 | case R_NDS32_RELA_GNU_VTENTRY: | |
| 6458 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| 6459 | return FALSE; | |
| 6460 | break; | |
| 6461 | } | |
| 6462 | } | |
| 6463 | ||
| 6464 | return TRUE; | |
| 6465 | } | |
| 6466 | ||
| 6467 | /* Write VAL in uleb128 format to P, returning a pointer to the | |
| 6468 | following byte. | |
| 6469 | This code is copied from elf-attr.c. */ | |
| 6470 | ||
| 6471 | static bfd_byte * | |
| 6472 | write_uleb128 (bfd_byte *p, unsigned int val) | |
| 6473 | { | |
| 6474 | bfd_byte c; | |
| 6475 | do | |
| 6476 | { | |
| 6477 | c = val & 0x7f; | |
| 6478 | val >>= 7; | |
| 6479 | if (val) | |
| 6480 | c |= 0x80; | |
| 6481 | *(p++) = c; | |
| 6482 | } | |
| 6483 | while (val); | |
| 6484 | return p; | |
| 6485 | } | |
| 6486 | ||
| 6487 | static bfd_signed_vma | |
| 6488 | calculate_offset (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 6489 | Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr, | |
| 6490 | int *pic_ext_target) | |
| 6491 | { | |
| 6492 | bfd_signed_vma foff; | |
| 6493 | bfd_vma symval, addend; | |
| 6494 | asection *sym_sec; | |
| 6495 | ||
| 6496 | /* Get the value of the symbol referred to by the reloc. */ | |
| 6497 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
| 6498 | { | |
| 6499 | Elf_Internal_Sym *isym; | |
| 6500 | ||
| 6501 | /* A local symbol. */ | |
| 6502 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
| 6503 | ||
| 6504 | if (isym->st_shndx == SHN_UNDEF) | |
| 6505 | sym_sec = bfd_und_section_ptr; | |
| 6506 | else if (isym->st_shndx == SHN_ABS) | |
| 6507 | sym_sec = bfd_abs_section_ptr; | |
| 6508 | else if (isym->st_shndx == SHN_COMMON) | |
| 6509 | sym_sec = bfd_com_section_ptr; | |
| 6510 | else | |
| 6511 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 6512 | symval = isym->st_value + sym_sec->output_section->vma | |
| 6513 | + sym_sec->output_offset; | |
| 6514 | } | |
| 6515 | else | |
| 6516 | { | |
| 6517 | unsigned long indx; | |
| 6518 | struct elf_link_hash_entry *h; | |
| 6519 | bfd *owner; | |
| 6520 | ||
| 6521 | /* An external symbol. */ | |
| 6522 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
| 6523 | h = elf_sym_hashes (abfd)[indx]; | |
| 6524 | BFD_ASSERT (h != NULL); | |
| 6525 | ||
| 6526 | if (h->root.type != bfd_link_hash_defined | |
| 6527 | && h->root.type != bfd_link_hash_defweak) | |
| 6528 | /* This appears to be a reference to an undefined | |
| 6529 | symbol. Just ignore it--it will be caught by the | |
| 6530 | regular reloc processing. */ | |
| 6531 | return 0; | |
| 6532 | owner = h->root.u.def.section->owner; | |
| 6533 | if (owner && (elf_elfheader (owner)->e_flags & E_NDS32_HAS_PIC)) | |
| 6534 | *pic_ext_target = 1; | |
| 6535 | ||
| 6536 | if (h->root.u.def.section->flags & SEC_MERGE) | |
| 6537 | { | |
| 6538 | sym_sec = h->root.u.def.section; | |
| 6539 | symval = _bfd_merged_section_offset (abfd, &sym_sec, | |
| 6540 | elf_section_data (sym_sec)->sec_info, | |
| 6541 | h->root.u.def.value); | |
| 6542 | symval = symval + sym_sec->output_section->vma | |
| 6543 | + sym_sec->output_offset; | |
| 6544 | } | |
| 6545 | else | |
| 6546 | symval = (h->root.u.def.value | |
| 6547 | + h->root.u.def.section->output_section->vma | |
| 6548 | + h->root.u.def.section->output_offset); | |
| 6549 | } | |
| 6550 | ||
| 6551 | addend = irel->r_addend; | |
| 6552 | ||
| 6553 | foff = (symval + addend | |
| 6554 | - (irel->r_offset + sec->output_section->vma + sec->output_offset)); | |
| 6555 | return foff; | |
| 6556 | } | |
| 6557 | ||
| 6558 | static bfd_vma | |
| 6559 | calculate_plt_memory_address (bfd *abfd, struct bfd_link_info *link_info, | |
| 6560 | Elf_Internal_Sym *isymbuf, | |
| 6561 | Elf_Internal_Rela *irel, | |
| 6562 | Elf_Internal_Shdr *symtab_hdr) | |
| 6563 | { | |
| 6564 | bfd_vma symval; | |
| 6565 | ||
| 6566 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
| 6567 | { | |
| 6568 | Elf_Internal_Sym *isym; | |
| 6569 | asection *sym_sec; | |
| 6570 | /* A local symbol. */ | |
| 6571 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
| 6572 | ||
| 6573 | if (isym->st_shndx == SHN_UNDEF) | |
| 6574 | sym_sec = bfd_und_section_ptr; | |
| 6575 | else if (isym->st_shndx == SHN_ABS) | |
| 6576 | sym_sec = bfd_abs_section_ptr; | |
| 6577 | else if (isym->st_shndx == SHN_COMMON) | |
| 6578 | sym_sec = bfd_com_section_ptr; | |
| 6579 | else | |
| 6580 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 6581 | symval = isym->st_value + sym_sec->output_section->vma | |
| 6582 | + sym_sec->output_offset; | |
| 6583 | } | |
| 6584 | else | |
| 6585 | { | |
| 6586 | unsigned long indx; | |
| 6587 | struct elf_link_hash_entry *h; | |
| 6588 | struct elf_nds32_link_hash_table *htab; | |
| 6589 | asection *splt; | |
| 6590 | ||
| 6591 | /* An external symbol. */ | |
| 6592 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
| 6593 | h = elf_sym_hashes (abfd)[indx]; | |
| 6594 | BFD_ASSERT (h != NULL); | |
| 6595 | htab = nds32_elf_hash_table (link_info); | |
| ce558b89 | 6596 | splt = htab->root.splt; |
| 35c08157 KLC |
6597 | |
| 6598 | while (h->root.type == bfd_link_hash_indirect | |
| 6599 | || h->root.type == bfd_link_hash_warning) | |
| 6600 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 6601 | ||
| 6602 | if (h->plt.offset == (bfd_vma) - 1) | |
| 6603 | { | |
| 6604 | if (h->root.type != bfd_link_hash_defined | |
| 6605 | && h->root.type != bfd_link_hash_defweak) | |
| 6606 | /* This appears to be a reference to an undefined | |
| 6607 | * symbol. Just ignore it--it will be caught by the | |
| 6608 | * regular reloc processing. */ | |
| 6609 | return 0; | |
| 6610 | symval = (h->root.u.def.value | |
| 6611 | + h->root.u.def.section->output_section->vma | |
| 6612 | + h->root.u.def.section->output_offset); | |
| 6613 | } | |
| 6614 | else | |
| 6615 | symval = splt->output_section->vma + h->plt.offset; | |
| 6616 | } | |
| 6617 | ||
| 6618 | return symval; | |
| 6619 | } | |
| 6620 | ||
| 6621 | static bfd_signed_vma | |
| 6622 | calculate_plt_offset (bfd *abfd, asection *sec, struct bfd_link_info *link_info, | |
| 6623 | Elf_Internal_Sym *isymbuf, Elf_Internal_Rela *irel, | |
| 6624 | Elf_Internal_Shdr *symtab_hdr) | |
| 6625 | { | |
| 6626 | bfd_vma foff; | |
| 6627 | if ((foff = calculate_plt_memory_address (abfd, link_info, isymbuf, irel, | |
| 6628 | symtab_hdr)) == 0) | |
| 6629 | return 0; | |
| 6630 | else | |
| 6631 | return foff - (irel->r_offset | |
| 6632 | + sec->output_section->vma + sec->output_offset); | |
| 6633 | } | |
| 6634 | \f | |
| 6635 | /* Convert a 32-bit instruction to 16-bit one. | |
| 6636 | INSN is the input 32-bit instruction, INSN16 is the output 16-bit | |
| 6637 | instruction. If INSN_TYPE is not NULL, it the CGEN instruction | |
| 6638 | type of INSN16. Return 1 if successful. */ | |
| 6639 | ||
| 6640 | static int | |
| 6641 | nds32_convert_32_to_16_alu1 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
| 6642 | int *pinsn_type) | |
| 6643 | { | |
| 6644 | uint16_t insn16 = 0; | |
| 6cae483a | 6645 | int insn_type = 0; |
| 35c08157 KLC |
6646 | unsigned long mach = bfd_get_mach (abfd); |
| 6647 | ||
| 6648 | if (N32_SH5 (insn) != 0) | |
| 6649 | return 0; | |
| 6650 | ||
| 6651 | switch (N32_SUB5 (insn)) | |
| 6652 | { | |
| 6653 | case N32_ALU1_ADD_SLLI: | |
| 6654 | case N32_ALU1_ADD_SRLI: | |
| 6655 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IS_RB3 (insn)) | |
| 6656 | { | |
| 6657 | insn16 = N16_TYPE333 (ADD333, N32_RT5 (insn), N32_RA5 (insn), | |
| 6658 | N32_RB5 (insn)); | |
| 6659 | insn_type = NDS32_INSN_ADD333; | |
| 6660 | } | |
| 6661 | else if (N32_IS_RT4 (insn)) | |
| 6662 | { | |
| 6663 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
| 6664 | insn16 = N16_TYPE45 (ADD45, N32_RT54 (insn), N32_RB5 (insn)); | |
| 6665 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
| 6666 | insn16 = N16_TYPE45 (ADD45, N32_RT54 (insn), N32_RA5 (insn)); | |
| 6667 | insn_type = NDS32_INSN_ADD45; | |
| 6668 | } | |
| 6669 | break; | |
| 6670 | ||
| 6671 | case N32_ALU1_SUB_SLLI: | |
| 6672 | case N32_ALU1_SUB_SRLI: | |
| 6673 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IS_RB3 (insn)) | |
| 6674 | { | |
| 6675 | insn16 = N16_TYPE333 (SUB333, N32_RT5 (insn), N32_RA5 (insn), | |
| 6676 | N32_RB5 (insn)); | |
| 6677 | insn_type = NDS32_INSN_SUB333; | |
| 6678 | } | |
| 6679 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
| 6680 | { | |
| 6681 | insn16 = N16_TYPE45 (SUB45, N32_RT54 (insn), N32_RB5 (insn)); | |
| 6682 | insn_type = NDS32_INSN_SUB45; | |
| 6683 | } | |
| 6684 | break; | |
| 6685 | ||
| 6686 | case N32_ALU1_AND_SLLI: | |
| 6687 | case N32_ALU1_AND_SRLI: | |
| 6688 | /* and $rt, $rt, $rb -> and33 for v3, v3m. */ | |
| 6689 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 6690 | && N32_IS_RB3 (insn)) | |
| 6691 | { | |
| 6692 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
| 6693 | insn16 = N16_MISC33 (AND33, N32_RT5 (insn), N32_RB5 (insn)); | |
| 6694 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
| 6695 | insn16 = N16_MISC33 (AND33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6696 | if (insn16) | |
| 6697 | insn_type = NDS32_INSN_AND33; | |
| 6698 | } | |
| 6699 | break; | |
| 6700 | ||
| 6701 | case N32_ALU1_XOR_SLLI: | |
| 6702 | case N32_ALU1_XOR_SRLI: | |
| 6703 | /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */ | |
| 6704 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 6705 | && N32_IS_RB3 (insn)) | |
| 6706 | { | |
| 6707 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
| 6708 | insn16 = N16_MISC33 (XOR33, N32_RT5 (insn), N32_RB5 (insn)); | |
| 6709 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
| 6710 | insn16 = N16_MISC33 (XOR33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6711 | if (insn16) | |
| 6712 | insn_type = NDS32_INSN_XOR33; | |
| 6713 | } | |
| 6714 | break; | |
| 6715 | ||
| 6716 | case N32_ALU1_OR_SLLI: | |
| 6717 | case N32_ALU1_OR_SRLI: | |
| 6718 | /* or $rt, $rt, $rb -> or33 for v3, v3m. */ | |
| 6719 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 6720 | && N32_IS_RB3 (insn)) | |
| 6721 | { | |
| 6722 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
| 6723 | insn16 = N16_MISC33 (OR33, N32_RT5 (insn), N32_RB5 (insn)); | |
| 6724 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
| 6725 | insn16 = N16_MISC33 (OR33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6726 | if (insn16) | |
| 6727 | insn_type = NDS32_INSN_OR33; | |
| 6728 | } | |
| 6729 | break; | |
| 6730 | case N32_ALU1_NOR: | |
| 6731 | /* nor $rt, $ra, $ra -> not33 for v3, v3m. */ | |
| 6732 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RB3 (insn) | |
| 6733 | && N32_RA5 (insn) == N32_RB5 (insn)) | |
| 6734 | { | |
| 6735 | insn16 = N16_MISC33 (NOT33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6736 | insn_type = NDS32_INSN_NOT33; | |
| 6737 | } | |
| 6738 | break; | |
| 6739 | case N32_ALU1_SRAI: | |
| 6740 | if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
| 6741 | { | |
| 6742 | insn16 = N16_TYPE45 (SRAI45, N32_RT54 (insn), N32_UB5 (insn)); | |
| 6743 | insn_type = NDS32_INSN_SRAI45; | |
| 6744 | } | |
| 6745 | break; | |
| 6746 | ||
| 6747 | case N32_ALU1_SRLI: | |
| 6748 | if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
| 6749 | { | |
| 6750 | insn16 = N16_TYPE45 (SRLI45, N32_RT54 (insn), N32_UB5 (insn)); | |
| 6751 | insn_type = NDS32_INSN_SRLI45; | |
| 6752 | } | |
| 6753 | break; | |
| 6754 | ||
| 6755 | case N32_ALU1_SLLI: | |
| 6756 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_UB5 (insn) < 8) | |
| 6757 | { | |
| 6758 | insn16 = N16_TYPE333 (SLLI333, N32_RT5 (insn), N32_RA5 (insn), | |
| 6759 | N32_UB5 (insn)); | |
| 6760 | insn_type = NDS32_INSN_SLLI333; | |
| 6761 | } | |
| 6762 | break; | |
| 6763 | ||
| 6764 | case N32_ALU1_ZEH: | |
| 6765 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
| 6766 | { | |
| 6767 | insn16 = N16_BFMI333 (ZEH33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6768 | insn_type = NDS32_INSN_ZEH33; | |
| 6769 | } | |
| 6770 | break; | |
| 6771 | ||
| 6772 | case N32_ALU1_SEB: | |
| 6773 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
| 6774 | { | |
| 6775 | insn16 = N16_BFMI333 (SEB33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6776 | insn_type = NDS32_INSN_SEB33; | |
| 6777 | } | |
| 6778 | break; | |
| 6779 | ||
| 6780 | case N32_ALU1_SEH: | |
| 6781 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
| 6782 | { | |
| 6783 | insn16 = N16_BFMI333 (SEH33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6784 | insn_type = NDS32_INSN_SEH33; | |
| 6785 | } | |
| 6786 | break; | |
| 6787 | ||
| 6788 | case N32_ALU1_SLT: | |
| 6789 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn)) | |
| 6790 | { | |
| 6791 | /* Implicit r15. */ | |
| 6792 | insn16 = N16_TYPE45 (SLT45, N32_RA54 (insn), N32_RB5 (insn)); | |
| 6793 | insn_type = NDS32_INSN_SLT45; | |
| 6794 | } | |
| 6795 | break; | |
| 6796 | ||
| 6797 | case N32_ALU1_SLTS: | |
| 6798 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn)) | |
| 6799 | { | |
| 6800 | /* Implicit r15. */ | |
| 6801 | insn16 = N16_TYPE45 (SLTS45, N32_RA54 (insn), N32_RB5 (insn)); | |
| 6802 | insn_type = NDS32_INSN_SLTS45; | |
| 6803 | } | |
| 6804 | break; | |
| 6805 | } | |
| 6806 | ||
| 6807 | if ((insn16 & 0x8000) == 0) | |
| 6808 | return 0; | |
| 6809 | ||
| 6810 | if (pinsn16) | |
| 6811 | *pinsn16 = insn16; | |
| 6812 | if (pinsn_type) | |
| 6813 | *pinsn_type = insn_type; | |
| 6814 | return 1; | |
| 6815 | } | |
| 6816 | ||
| 6817 | static int | |
| 6818 | nds32_convert_32_to_16_alu2 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
| 6819 | int *pinsn_type) | |
| 6820 | { | |
| 6821 | uint16_t insn16 = 0; | |
| 6822 | int insn_type; | |
| 6823 | unsigned long mach = bfd_get_mach (abfd); | |
| 6824 | ||
| 6825 | /* TODO: bset, bclr, btgl, btst. */ | |
| 6826 | if (__GF (insn, 6, 4) != 0) | |
| 6827 | return 0; | |
| 6828 | ||
| 6829 | switch (N32_IMMU (insn, 6)) | |
| 6830 | { | |
| 6831 | case N32_ALU2_MUL: | |
| 6832 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 6833 | && N32_IS_RB3 (insn)) | |
| 6834 | { | |
| 6835 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
| 6836 | insn16 = N16_MISC33 (MUL33, N32_RT5 (insn), N32_RB5 (insn)); | |
| 6837 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
| 6838 | insn16 = N16_MISC33 (MUL33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6839 | if (insn16) | |
| 6840 | insn_type = NDS32_INSN_MUL33; | |
| 6841 | } | |
| 6842 | } | |
| 6843 | ||
| 6844 | if ((insn16 & 0x8000) == 0) | |
| 6845 | return 0; | |
| 6846 | ||
| 6847 | if (pinsn16) | |
| 6848 | *pinsn16 = insn16; | |
| 6849 | if (pinsn_type) | |
| 6850 | *pinsn_type = insn_type; | |
| 6851 | return 1; | |
| 6852 | } | |
| 6853 | ||
| 6854 | int | |
| 6855 | nds32_convert_32_to_16 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
| 6856 | int *pinsn_type) | |
| 6857 | { | |
| 6858 | int op6; | |
| 6859 | uint16_t insn16 = 0; | |
| 6860 | int insn_type; | |
| 6861 | unsigned long mach = bfd_get_mach (abfd); | |
| 6862 | ||
| 6863 | /* Decode 32-bit instruction. */ | |
| 6864 | if (insn & 0x80000000) | |
| 6865 | { | |
| 6866 | /* Not 32-bit insn. */ | |
| 6867 | return 0; | |
| 6868 | } | |
| 6869 | ||
| 6870 | op6 = N32_OP6 (insn); | |
| 6871 | ||
| 6872 | /* Convert it to 16-bit instruction. */ | |
| 6873 | switch (op6) | |
| 6874 | { | |
| 6875 | case N32_OP6_MOVI: | |
| 6876 | if (IS_WITHIN_S (N32_IMM20S (insn), 5)) | |
| 6877 | { | |
| 6878 | insn16 = N16_TYPE55 (MOVI55, N32_RT5 (insn), N32_IMM20S (insn)); | |
| 6879 | insn_type = NDS32_INSN_MOVI55; | |
| 6880 | } | |
| 6881 | else if (mach >= MACH_V3 && N32_IMM20S (insn) >= 16 | |
| 6882 | && N32_IMM20S (insn) < 48 && N32_IS_RT4 (insn)) | |
| 6883 | { | |
| 6884 | insn16 = N16_TYPE45 (MOVPI45, N32_RT54 (insn), | |
| 6885 | N32_IMM20S (insn) - 16); | |
| 6886 | insn_type = NDS32_INSN_MOVPI45; | |
| 6887 | } | |
| 6888 | break; | |
| 6889 | ||
| 6890 | case N32_OP6_ADDI: | |
| 6891 | if (N32_IMM15S (insn) == 0) | |
| 6892 | { | |
| 6893 | /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp', | |
| 6894 | because `mov55 $sp, $sp' is ifret16 in V3 ISA. */ | |
| 6895 | if (mach <= MACH_V2 | |
| 6896 | || N32_RT5 (insn) != REG_SP || N32_RA5 (insn) != REG_SP) | |
| 6897 | { | |
| 6898 | insn16 = N16_TYPE55 (MOV55, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6899 | insn_type = NDS32_INSN_MOV55; | |
| 6900 | } | |
| 6901 | } | |
| 6902 | else if (N32_IMM15S (insn) > 0) | |
| 6903 | { | |
| 6904 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IMM15S (insn) < 8) | |
| 6905 | { | |
| 6906 | insn16 = N16_TYPE333 (ADDI333, N32_RT5 (insn), N32_RA5 (insn), | |
| 6907 | N32_IMM15S (insn)); | |
| 6908 | insn_type = NDS32_INSN_ADDI333; | |
| 6909 | } | |
| 6910 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn) | |
| 6911 | && N32_IMM15S (insn) < 32) | |
| 6912 | { | |
| 6913 | insn16 = N16_TYPE45 (ADDI45, N32_RT54 (insn), N32_IMM15S (insn)); | |
| 6914 | insn_type = NDS32_INSN_ADDI45; | |
| 6915 | } | |
| 6916 | else if (mach >= MACH_V2 && N32_RT5 (insn) == REG_SP | |
| 6917 | && N32_RT5 (insn) == N32_RA5 (insn) | |
| 6918 | && N32_IMM15S (insn) < 512) | |
| 6919 | { | |
| 6920 | insn16 = N16_TYPE10 (ADDI10S, N32_IMM15S (insn)); | |
| 6921 | insn_type = NDS32_INSN_ADDI10_SP; | |
| 6922 | } | |
| 6923 | else if (mach >= MACH_V3 && N32_IS_RT3 (insn) | |
| 6924 | && N32_RA5 (insn) == REG_SP && N32_IMM15S (insn) < 256 | |
| 6925 | && (N32_IMM15S (insn) % 4 == 0)) | |
| 6926 | { | |
| 6927 | insn16 = N16_TYPE36 (ADDRI36_SP, N32_RT5 (insn), | |
| 6928 | N32_IMM15S (insn) >> 2); | |
| 6929 | insn_type = NDS32_INSN_ADDRI36_SP; | |
| 6930 | } | |
| 6931 | } | |
| 6932 | else | |
| 6933 | { | |
| 6934 | /* Less than 0. */ | |
| 6935 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IMM15S (insn) > -8) | |
| 6936 | { | |
| 6937 | insn16 = N16_TYPE333 (SUBI333, N32_RT5 (insn), N32_RA5 (insn), | |
| 6938 | 0 - N32_IMM15S (insn)); | |
| 6939 | insn_type = NDS32_INSN_SUBI333; | |
| 6940 | } | |
| 6941 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn) | |
| 6942 | && N32_IMM15S (insn) > -32) | |
| 6943 | { | |
| 1c8f6a4d KLC |
6944 | insn16 = N16_TYPE45 (SUBI45, N32_RT54 (insn), |
| 6945 | 0 - N32_IMM15S (insn)); | |
| 35c08157 KLC |
6946 | insn_type = NDS32_INSN_SUBI45; |
| 6947 | } | |
| 6948 | else if (mach >= MACH_V2 && N32_RT5 (insn) == REG_SP | |
| 6949 | && N32_RT5 (insn) == N32_RA5 (insn) | |
| 6950 | && N32_IMM15S (insn) >= -512) | |
| 6951 | { | |
| 6952 | insn16 = N16_TYPE10 (ADDI10S, N32_IMM15S (insn)); | |
| 6953 | insn_type = NDS32_INSN_ADDI10_SP; | |
| 6954 | } | |
| 6955 | } | |
| 6956 | break; | |
| 6957 | ||
| 6958 | case N32_OP6_ORI: | |
| 6959 | if (N32_IMM15S (insn) == 0) | |
| 6960 | { | |
| 6961 | /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp', | |
| 6962 | because `mov55 $sp, $sp' is ifret16 in V3 ISA. */ | |
| 6963 | if (mach <= MACH_V2 | |
| 6964 | || N32_RT5 (insn) != REG_SP || N32_RA5 (insn) != REG_SP) | |
| 6965 | { | |
| 6966 | insn16 = N16_TYPE55 (MOV55, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6967 | insn_type = NDS32_INSN_MOV55; | |
| 6968 | } | |
| 6969 | } | |
| 6970 | break; | |
| 6971 | ||
| 6972 | case N32_OP6_SUBRI: | |
| 6973 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) | |
| 6974 | && N32_IS_RA3 (insn) && N32_IMM15S (insn) == 0) | |
| 6975 | { | |
| 6976 | insn16 = N16_MISC33 (NEG33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6977 | insn_type = NDS32_INSN_NEG33; | |
| 6978 | } | |
| 6979 | break; | |
| 6980 | ||
| 6981 | case N32_OP6_ANDI: | |
| 6982 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
| 6983 | { | |
| 6984 | if (N32_IMM15U (insn) == 1) | |
| 6985 | { | |
| 6986 | insn16 = N16_BFMI333 (XLSB33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6987 | insn_type = NDS32_INSN_XLSB33; | |
| 6988 | } | |
| 6989 | else if (N32_IMM15U (insn) == 0x7ff) | |
| 6990 | { | |
| 6991 | insn16 = N16_BFMI333 (X11B33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6992 | insn_type = NDS32_INSN_X11B33; | |
| 6993 | } | |
| 6994 | else if (N32_IMM15U (insn) == 0xff) | |
| 6995 | { | |
| 6996 | insn16 = N16_BFMI333 (ZEB33, N32_RT5 (insn), N32_RA5 (insn)); | |
| 6997 | insn_type = NDS32_INSN_ZEB33; | |
| 6998 | } | |
| 6999 | else if (mach >= MACH_V3 && N32_RT5 (insn) == N32_RA5 (insn) | |
| 7000 | && N32_IMM15U (insn) < 256) | |
| 7001 | { | |
| 7002 | int imm15u = N32_IMM15U (insn); | |
| 7003 | ||
| 7004 | if (__builtin_popcount (imm15u) == 1) | |
| 7005 | { | |
| 7006 | /* BMSKI33 */ | |
| 7007 | int imm3u = __builtin_ctz (imm15u); | |
| 7008 | ||
| 7009 | insn16 = N16_BFMI333 (BMSKI33, N32_RT5 (insn), imm3u); | |
| 7010 | insn_type = NDS32_INSN_BMSKI33; | |
| 7011 | } | |
| 7012 | else if (imm15u != 0 && __builtin_popcount (imm15u + 1) == 1) | |
| 7013 | { | |
| 7014 | /* FEXTI33 */ | |
| 7015 | int imm3u = __builtin_ctz (imm15u + 1) - 1; | |
| 7016 | ||
| 7017 | insn16 = N16_BFMI333 (FEXTI33, N32_RT5 (insn), imm3u); | |
| 7018 | insn_type = NDS32_INSN_FEXTI33; | |
| 7019 | } | |
| 7020 | } | |
| 7021 | } | |
| 7022 | break; | |
| 7023 | ||
| 7024 | case N32_OP6_SLTI: | |
| 7025 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn) | |
| 7026 | && IS_WITHIN_U (N32_IMM15S (insn), 5)) | |
| 7027 | { | |
| 7028 | insn16 = N16_TYPE45 (SLTI45, N32_RA54 (insn), N32_IMM15S (insn)); | |
| 7029 | insn_type = NDS32_INSN_SLTI45; | |
| 7030 | } | |
| 7031 | break; | |
| 7032 | ||
| 7033 | case N32_OP6_SLTSI: | |
| 7034 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn) | |
| 7035 | && IS_WITHIN_U (N32_IMM15S (insn), 5)) | |
| 7036 | { | |
| 7037 | insn16 = N16_TYPE45 (SLTSI45, N32_RA54 (insn), N32_IMM15S (insn)); | |
| 7038 | insn_type = NDS32_INSN_SLTSI45; | |
| 7039 | } | |
| 7040 | break; | |
| 7041 | ||
| 7042 | case N32_OP6_LWI: | |
| 7043 | if (N32_IS_RT4 (insn) && N32_IMM15S (insn) == 0) | |
| 7044 | { | |
| 7045 | insn16 = N16_TYPE45 (LWI450, N32_RT54 (insn), N32_RA5 (insn)); | |
| 7046 | insn_type = NDS32_INSN_LWI450; | |
| 7047 | } | |
| 7048 | else if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 7049 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
| 7050 | { | |
| 7051 | insn16 = N16_TYPE333 (LWI333, N32_RT5 (insn), N32_RA5 (insn), | |
| 7052 | N32_IMM15S (insn)); | |
| 7053 | insn_type = NDS32_INSN_LWI333; | |
| 7054 | } | |
| 7055 | else if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_FP | |
| 7056 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
| 7057 | { | |
| 7058 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
| 7059 | insn_type = NDS32_INSN_LWI37; | |
| 7060 | } | |
| 7061 | else if (mach >= MACH_V2 && N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_SP | |
| 7062 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
| 7063 | { | |
| 7064 | insn16 = N16_TYPE37 (XWI37SP, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
| 7065 | insn_type = NDS32_INSN_LWI37_SP; | |
| 7066 | } | |
| 7067 | else if (mach >= MACH_V2 && N32_IS_RT4 (insn) && N32_RA5 (insn) == REG_R8 | |
| 7068 | && -32 <= N32_IMM15S (insn) && N32_IMM15S (insn) < 0) | |
| 7069 | { | |
| 1c8f6a4d KLC |
7070 | insn16 = N16_TYPE45 (LWI45_FE, N32_RT54 (insn), |
| 7071 | N32_IMM15S (insn) + 32); | |
| 35c08157 KLC |
7072 | insn_type = NDS32_INSN_LWI45_FE; |
| 7073 | } | |
| 7074 | break; | |
| 7075 | ||
| 7076 | case N32_OP6_SWI: | |
| 7077 | if (N32_IS_RT4 (insn) && N32_IMM15S (insn) == 0) | |
| 7078 | { | |
| 7079 | insn16 = N16_TYPE45 (SWI450, N32_RT54 (insn), N32_RA5 (insn)); | |
| 7080 | insn_type = NDS32_INSN_SWI450; | |
| 7081 | } | |
| 7082 | else if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 7083 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
| 7084 | { | |
| 1c8f6a4d KLC |
7085 | insn16 = N16_TYPE333 (SWI333, N32_RT5 (insn), N32_RA5 (insn), |
| 7086 | N32_IMM15S (insn)); | |
| 35c08157 KLC |
7087 | insn_type = NDS32_INSN_SWI333; |
| 7088 | } | |
| 7089 | else if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_FP | |
| 7090 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
| 7091 | { | |
| 7092 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
| 7093 | insn_type = NDS32_INSN_SWI37; | |
| 7094 | } | |
| 7095 | else if (mach >= MACH_V2 && N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_SP | |
| 7096 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
| 7097 | { | |
| 7098 | insn16 = N16_TYPE37 (XWI37SP, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
| 7099 | insn_type = NDS32_INSN_SWI37_SP; | |
| 7100 | } | |
| 7101 | break; | |
| 7102 | ||
| 7103 | case N32_OP6_LWI_BI: | |
| 7104 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 7105 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
| 7106 | { | |
| 7107 | insn16 = N16_TYPE333 (LWI333_BI, N32_RT5 (insn), N32_RA5 (insn), | |
| 7108 | N32_IMM15S (insn)); | |
| 7109 | insn_type = NDS32_INSN_LWI333_BI; | |
| 7110 | } | |
| 7111 | break; | |
| 7112 | ||
| 7113 | case N32_OP6_SWI_BI: | |
| 7114 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 7115 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
| 7116 | { | |
| 7117 | insn16 = N16_TYPE333 (SWI333_BI, N32_RT5 (insn), N32_RA5 (insn), | |
| 7118 | N32_IMM15S (insn)); | |
| 7119 | insn_type = NDS32_INSN_SWI333_BI; | |
| 7120 | } | |
| 7121 | break; | |
| 7122 | ||
| 7123 | case N32_OP6_LHI: | |
| 7124 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 7125 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
| 7126 | { | |
| 7127 | insn16 = N16_TYPE333 (LHI333, N32_RT5 (insn), N32_RA5 (insn), | |
| 7128 | N32_IMM15S (insn)); | |
| 7129 | insn_type = NDS32_INSN_LHI333; | |
| 7130 | } | |
| 7131 | break; | |
| 7132 | ||
| 7133 | case N32_OP6_SHI: | |
| 7134 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 7135 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
| 7136 | { | |
| 7137 | insn16 = N16_TYPE333 (SHI333, N32_RT5 (insn), N32_RA5 (insn), | |
| 7138 | N32_IMM15S (insn)); | |
| 7139 | insn_type = NDS32_INSN_SHI333; | |
| 7140 | } | |
| 7141 | break; | |
| 7142 | ||
| 7143 | case N32_OP6_LBI: | |
| 7144 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 7145 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
| 7146 | { | |
| 7147 | insn16 = N16_TYPE333 (LBI333, N32_RT5 (insn), N32_RA5 (insn), | |
| 7148 | N32_IMM15S (insn)); | |
| 7149 | insn_type = NDS32_INSN_LBI333; | |
| 7150 | } | |
| 7151 | break; | |
| 7152 | ||
| 7153 | case N32_OP6_SBI: | |
| 7154 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
| 7155 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
| 7156 | { | |
| 7157 | insn16 = N16_TYPE333 (SBI333, N32_RT5 (insn), N32_RA5 (insn), | |
| 7158 | N32_IMM15S (insn)); | |
| 7159 | insn_type = NDS32_INSN_SBI333; | |
| 7160 | } | |
| 7161 | break; | |
| 7162 | ||
| 7163 | case N32_OP6_ALU1: | |
| 7164 | return nds32_convert_32_to_16_alu1 (abfd, insn, pinsn16, pinsn_type); | |
| 7165 | ||
| 7166 | case N32_OP6_ALU2: | |
| 7167 | return nds32_convert_32_to_16_alu2 (abfd, insn, pinsn16, pinsn_type); | |
| 7168 | ||
| 7169 | case N32_OP6_BR1: | |
| 7170 | if (!IS_WITHIN_S (N32_IMM14S (insn), 8)) | |
| 7171 | goto done; | |
| 7172 | ||
| 4ec521f2 | 7173 | if ((insn & N32_BIT (14)) == 0) |
| 35c08157 KLC |
7174 | { |
| 7175 | /* N32_BR1_BEQ */ | |
| 7176 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5 | |
| 7177 | && N32_RT5 (insn) != REG_R5) | |
| 7178 | insn16 = N16_TYPE38 (BEQS38, N32_RT5 (insn), N32_IMM14S (insn)); | |
| 7179 | else if (N32_IS_RA3 (insn) && N32_RT5 (insn) == REG_R5 | |
| 7180 | && N32_RA5 (insn) != REG_R5) | |
| 7181 | insn16 = N16_TYPE38 (BEQS38, N32_RA5 (insn), N32_IMM14S (insn)); | |
| 7182 | insn_type = NDS32_INSN_BEQS38; | |
| 7183 | break; | |
| 7184 | } | |
| 7185 | else | |
| 7186 | { | |
| 7187 | /* N32_BR1_BNE */ | |
| 7188 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5 | |
| 7189 | && N32_RT5 (insn) != REG_R5) | |
| 7190 | insn16 = N16_TYPE38 (BNES38, N32_RT5 (insn), N32_IMM14S (insn)); | |
| 7191 | else if (N32_IS_RA3 (insn) && N32_RT5 (insn) == REG_R5 | |
| 7192 | && N32_RA5 (insn) != REG_R5) | |
| 7193 | insn16 = N16_TYPE38 (BNES38, N32_RA5 (insn), N32_IMM14S (insn)); | |
| 7194 | insn_type = NDS32_INSN_BNES38; | |
| 7195 | break; | |
| 7196 | } | |
| 7197 | break; | |
| 7198 | ||
| 7199 | case N32_OP6_BR2: | |
| 7200 | switch (N32_BR2_SUB (insn)) | |
| 7201 | { | |
| 7202 | case N32_BR2_BEQZ: | |
| 7203 | if (N32_IS_RT3 (insn) && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
| 7204 | { | |
| 7205 | insn16 = N16_TYPE38 (BEQZ38, N32_RT5 (insn), N32_IMM16S (insn)); | |
| 7206 | insn_type = NDS32_INSN_BEQZ38; | |
| 7207 | } | |
| 1c8f6a4d KLC |
7208 | else if (N32_RT5 (insn) == REG_R15 |
| 7209 | && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
| 35c08157 KLC |
7210 | { |
| 7211 | insn16 = N16_TYPE8 (BEQZS8, N32_IMM16S (insn)); | |
| 7212 | insn_type = NDS32_INSN_BEQZS8; | |
| 7213 | } | |
| 7214 | break; | |
| 7215 | ||
| 7216 | case N32_BR2_BNEZ: | |
| 7217 | if (N32_IS_RT3 (insn) && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
| 7218 | { | |
| 7219 | insn16 = N16_TYPE38 (BNEZ38, N32_RT5 (insn), N32_IMM16S (insn)); | |
| 7220 | insn_type = NDS32_INSN_BNEZ38; | |
| 7221 | } | |
| 1c8f6a4d KLC |
7222 | else if (N32_RT5 (insn) == REG_R15 |
| 7223 | && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
| 35c08157 KLC |
7224 | { |
| 7225 | insn16 = N16_TYPE8 (BNEZS8, N32_IMM16S (insn)); | |
| 7226 | insn_type = NDS32_INSN_BNEZS8; | |
| 7227 | } | |
| 7228 | break; | |
| 7229 | ||
| 7230 | case N32_BR2_IFCALL: | |
| 7231 | if (IS_WITHIN_U (N32_IMM16S (insn), 9)) | |
| 7232 | { | |
| 7233 | insn16 = N16_TYPE9 (IFCALL9, N32_IMM16S (insn)); | |
| 7234 | insn_type = NDS32_INSN_IFCALL9; | |
| 7235 | } | |
| 7236 | break; | |
| 7237 | } | |
| 7238 | break; | |
| 7239 | ||
| 7240 | case N32_OP6_JI: | |
| 4ec521f2 | 7241 | if ((insn & N32_BIT (24)) == 0) |
| 35c08157 KLC |
7242 | { |
| 7243 | /* N32_JI_J */ | |
| 7244 | if (IS_WITHIN_S (N32_IMM24S (insn), 8)) | |
| 7245 | { | |
| 7246 | insn16 = N16_TYPE8 (J8, N32_IMM24S (insn)); | |
| 7247 | insn_type = NDS32_INSN_J8; | |
| 7248 | } | |
| 7249 | } | |
| 7250 | break; | |
| 7251 | ||
| 7252 | case N32_OP6_JREG: | |
| 7253 | if (__GF (insn, 8, 2) != 0) | |
| 7254 | goto done; | |
| 7255 | ||
| 7256 | switch (N32_IMMU (insn, 5)) | |
| 7257 | { | |
| 7258 | case N32_JREG_JR: | |
| 7259 | if (N32_JREG_HINT (insn) == 0) | |
| 7260 | { | |
| 7261 | /* jr */ | |
| 7262 | insn16 = N16_TYPE5 (JR5, N32_RB5 (insn)); | |
| 7263 | insn_type = NDS32_INSN_JR5; | |
| 7264 | } | |
| 7265 | else if (N32_JREG_HINT (insn) == 1) | |
| 7266 | { | |
| 7267 | /* ret */ | |
| 7268 | insn16 = N16_TYPE5 (RET5, N32_RB5 (insn)); | |
| 7269 | insn_type = NDS32_INSN_RET5; | |
| 7270 | } | |
| 7271 | else if (N32_JREG_HINT (insn) == 3) | |
| 7272 | { | |
| 7273 | /* ifret = mov55 $sp, $sp */ | |
| 7274 | insn16 = N16_TYPE55 (MOV55, REG_SP, REG_SP); | |
| 7275 | insn_type = NDS32_INSN_IFRET; | |
| 7276 | } | |
| 7277 | break; | |
| 7278 | ||
| 7279 | case N32_JREG_JRAL: | |
| 7280 | /* It's convertible when return rt5 is $lp and address | |
| 7281 | translation is kept. */ | |
| 7282 | if (N32_RT5 (insn) == REG_LP && N32_JREG_HINT (insn) == 0) | |
| 7283 | { | |
| 7284 | insn16 = N16_TYPE5 (JRAL5, N32_RB5 (insn)); | |
| 7285 | insn_type = NDS32_INSN_JRAL5; | |
| 7286 | } | |
| 7287 | break; | |
| 7288 | } | |
| 7289 | break; | |
| 7290 | ||
| 7291 | case N32_OP6_MISC: | |
| 7292 | if (N32_SUB5 (insn) == N32_MISC_BREAK && N32_SWID (insn) < 32) | |
| 7293 | { | |
| 7294 | /* For v3, swid above 31 are used for ex9.it. */ | |
| 7295 | insn16 = N16_TYPE5 (BREAK16, N32_SWID (insn)); | |
| 7296 | insn_type = NDS32_INSN_BREAK16; | |
| 7297 | } | |
| 7298 | break; | |
| 7299 | ||
| 7300 | default: | |
| 7301 | /* This instruction has no 16-bit variant. */ | |
| 7302 | goto done; | |
| 7303 | } | |
| 7304 | ||
| 7305 | done: | |
| 7306 | /* Bit-15 of insn16 should be set for a valid instruction. */ | |
| 7307 | if ((insn16 & 0x8000) == 0) | |
| 7308 | return 0; | |
| 7309 | ||
| 7310 | if (pinsn16) | |
| 7311 | *pinsn16 = insn16; | |
| 7312 | if (pinsn_type) | |
| 7313 | *pinsn_type = insn_type; | |
| 7314 | return 1; | |
| 7315 | } | |
| 7316 | ||
| 7317 | static int | |
| 7318 | special_convert_32_to_16 (unsigned long insn, uint16_t *pinsn16, | |
| 7319 | Elf_Internal_Rela *reloc) | |
| 7320 | { | |
| 7321 | uint16_t insn16 = 0; | |
| 7322 | ||
| 7323 | if ((reloc->r_addend & R_NDS32_INSN16_FP7U2_FLAG) == 0 | |
| 7324 | || (ELF32_R_TYPE (reloc->r_info) != R_NDS32_INSN16)) | |
| 7325 | return 0; | |
| 7326 | ||
| 7327 | if (!N32_IS_RT3 (insn)) | |
| 7328 | return 0; | |
| 7329 | ||
| 7330 | switch (N32_OP6 (insn)) | |
| 7331 | { | |
| 7332 | case N32_OP6_LWI: | |
| 7333 | if (N32_RA5 (insn) == REG_GP && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
| 7334 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
| 7335 | break; | |
| 7336 | case N32_OP6_SWI: | |
| 7337 | if (N32_RA5 (insn) == REG_GP && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
| 7338 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
| 7339 | break; | |
| 7340 | case N32_OP6_HWGP: | |
| 7341 | if (!IS_WITHIN_U (N32_IMM17S (insn), 7)) | |
| 7342 | break; | |
| 7343 | ||
| 7344 | if (__GF (insn, 17, 3) == 6) | |
| 7345 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM17S (insn)); | |
| 7346 | else if (__GF (insn, 17, 3) == 7) | |
| 7347 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM17S (insn)); | |
| 7348 | break; | |
| 7349 | } | |
| 7350 | ||
| 7351 | if ((insn16 & 0x8000) == 0) | |
| 7352 | return 0; | |
| 7353 | ||
| 7354 | *pinsn16 = insn16; | |
| 7355 | return 1; | |
| 7356 | } | |
| 7357 | ||
| 7358 | /* Convert a 16-bit instruction to 32-bit one. | |
| 7359 | INSN16 it the input and PINSN it the point to output. | |
| 7360 | Return non-zero on successful. Otherwise 0 is returned. */ | |
| 7361 | ||
| 7362 | int | |
| 7363 | nds32_convert_16_to_32 (bfd *abfd, uint16_t insn16, uint32_t *pinsn) | |
| 7364 | { | |
| 7365 | uint32_t insn = 0xffffffff; | |
| 7366 | unsigned long mach = bfd_get_mach (abfd); | |
| 7367 | ||
| 7368 | /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */ | |
| 7369 | ||
| 7370 | switch (__GF (insn16, 9, 6)) | |
| 7371 | { | |
| 7372 | case 0x4: /* add45 */ | |
| 1c8f6a4d KLC |
7373 | insn = N32_ALU1 (ADD, N16_RT4 (insn16), N16_RT4 (insn16), |
| 7374 | N16_RA5 (insn16)); | |
| 35c08157 KLC |
7375 | goto done; |
| 7376 | case 0x5: /* sub45 */ | |
| 1c8f6a4d KLC |
7377 | insn = N32_ALU1 (SUB, N16_RT4 (insn16), N16_RT4 (insn16), |
| 7378 | N16_RA5 (insn16)); | |
| 35c08157 KLC |
7379 | goto done; |
| 7380 | case 0x6: /* addi45 */ | |
| 1c8f6a4d KLC |
7381 | insn = N32_TYPE2 (ADDI, N16_RT4 (insn16), N16_RT4 (insn16), |
| 7382 | N16_IMM5U (insn16)); | |
| 35c08157 KLC |
7383 | goto done; |
| 7384 | case 0x7: /* subi45 */ | |
| 1c8f6a4d KLC |
7385 | insn = N32_TYPE2 (ADDI, N16_RT4 (insn16), N16_RT4 (insn16), |
| 7386 | -N16_IMM5U (insn16)); | |
| 35c08157 KLC |
7387 | goto done; |
| 7388 | case 0x8: /* srai45 */ | |
| 1c8f6a4d KLC |
7389 | insn = N32_ALU1 (SRAI, N16_RT4 (insn16), N16_RT4 (insn16), |
| 7390 | N16_IMM5U (insn16)); | |
| 35c08157 KLC |
7391 | goto done; |
| 7392 | case 0x9: /* srli45 */ | |
| 1c8f6a4d KLC |
7393 | insn = N32_ALU1 (SRLI, N16_RT4 (insn16), N16_RT4 (insn16), |
| 7394 | N16_IMM5U (insn16)); | |
| 35c08157 | 7395 | goto done; |
| 35c08157 | 7396 | case 0xa: /* slli333 */ |
| 1c8f6a4d KLC |
7397 | insn = N32_ALU1 (SLLI, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7398 | N16_IMM3U (insn16)); | |
| 35c08157 KLC |
7399 | goto done; |
| 7400 | case 0xc: /* add333 */ | |
| 1c8f6a4d KLC |
7401 | insn = N32_ALU1 (ADD, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7402 | N16_RB3 (insn16)); | |
| 35c08157 KLC |
7403 | goto done; |
| 7404 | case 0xd: /* sub333 */ | |
| 1c8f6a4d KLC |
7405 | insn = N32_ALU1 (SUB, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7406 | N16_RB3 (insn16)); | |
| 35c08157 KLC |
7407 | goto done; |
| 7408 | case 0xe: /* addi333 */ | |
| 1c8f6a4d KLC |
7409 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7410 | N16_IMM3U (insn16)); | |
| 35c08157 KLC |
7411 | goto done; |
| 7412 | case 0xf: /* subi333 */ | |
| 1c8f6a4d KLC |
7413 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7414 | -N16_IMM3U (insn16)); | |
| 35c08157 | 7415 | goto done; |
| 35c08157 | 7416 | case 0x10: /* lwi333 */ |
| 1c8f6a4d KLC |
7417 | insn = N32_TYPE2 (LWI, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7418 | N16_IMM3U (insn16)); | |
| 35c08157 KLC |
7419 | goto done; |
| 7420 | case 0x12: /* lhi333 */ | |
| 1c8f6a4d KLC |
7421 | insn = N32_TYPE2 (LHI, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7422 | N16_IMM3U (insn16)); | |
| 35c08157 KLC |
7423 | goto done; |
| 7424 | case 0x13: /* lbi333 */ | |
| 1c8f6a4d KLC |
7425 | insn = N32_TYPE2 (LBI, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7426 | N16_IMM3U (insn16)); | |
| 35c08157 KLC |
7427 | goto done; |
| 7428 | case 0x11: /* lwi333.bi */ | |
| 1c8f6a4d KLC |
7429 | insn = N32_TYPE2 (LWI_BI, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7430 | N16_IMM3U (insn16)); | |
| 35c08157 KLC |
7431 | goto done; |
| 7432 | case 0x14: /* swi333 */ | |
| 1c8f6a4d KLC |
7433 | insn = N32_TYPE2 (SWI, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7434 | N16_IMM3U (insn16)); | |
| 35c08157 KLC |
7435 | goto done; |
| 7436 | case 0x16: /* shi333 */ | |
| 1c8f6a4d KLC |
7437 | insn = N32_TYPE2 (SHI, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7438 | N16_IMM3U (insn16)); | |
| 35c08157 KLC |
7439 | goto done; |
| 7440 | case 0x17: /* sbi333 */ | |
| 1c8f6a4d KLC |
7441 | insn = N32_TYPE2 (SBI, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7442 | N16_IMM3U (insn16)); | |
| 35c08157 KLC |
7443 | goto done; |
| 7444 | case 0x15: /* swi333.bi */ | |
| 1c8f6a4d KLC |
7445 | insn = N32_TYPE2 (SWI_BI, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7446 | N16_IMM3U (insn16)); | |
| 35c08157 | 7447 | goto done; |
| 35c08157 | 7448 | case 0x18: /* addri36.sp */ |
| 1c8f6a4d KLC |
7449 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), REG_SP, |
| 7450 | N16_IMM6U (insn16) << 2); | |
| 35c08157 | 7451 | goto done; |
| 35c08157 | 7452 | case 0x19: /* lwi45.fe */ |
| 1c8f6a4d KLC |
7453 | insn = N32_TYPE2 (LWI, N16_RT4 (insn16), REG_R8, |
| 7454 | (N16_IMM5U (insn16) - 32)); | |
| 35c08157 KLC |
7455 | goto done; |
| 7456 | case 0x1a: /* lwi450 */ | |
| 7457 | insn = N32_TYPE2 (LWI, N16_RT4 (insn16), N16_RA5 (insn16), 0); | |
| 7458 | goto done; | |
| 7459 | case 0x1b: /* swi450 */ | |
| 7460 | insn = N32_TYPE2 (SWI, N16_RT4 (insn16), N16_RA5 (insn16), 0); | |
| 7461 | goto done; | |
| 7462 | ||
| 1c8f6a4d | 7463 | /* These are r15 implied instructions. */ |
| 35c08157 KLC |
7464 | case 0x30: /* slts45 */ |
| 7465 | insn = N32_ALU1 (SLTS, REG_TA, N16_RT4 (insn16), N16_RA5 (insn16)); | |
| 7466 | goto done; | |
| 7467 | case 0x31: /* slt45 */ | |
| 7468 | insn = N32_ALU1 (SLT, REG_TA, N16_RT4 (insn16), N16_RA5 (insn16)); | |
| 7469 | goto done; | |
| 7470 | case 0x32: /* sltsi45 */ | |
| 7471 | insn = N32_TYPE2 (SLTSI, REG_TA, N16_RT4 (insn16), N16_IMM5U (insn16)); | |
| 7472 | goto done; | |
| 7473 | case 0x33: /* slti45 */ | |
| 7474 | insn = N32_TYPE2 (SLTI, REG_TA, N16_RT4 (insn16), N16_IMM5U (insn16)); | |
| 7475 | goto done; | |
| 7476 | case 0x34: /* beqzs8, bnezs8 */ | |
| 4ec521f2 | 7477 | if (insn16 & N32_BIT (8)) |
| 35c08157 KLC |
7478 | insn = N32_BR2 (BNEZ, REG_TA, N16_IMM8S (insn16)); |
| 7479 | else | |
| 7480 | insn = N32_BR2 (BEQZ, REG_TA, N16_IMM8S (insn16)); | |
| 7481 | goto done; | |
| 7482 | ||
| 7483 | case 0x35: /* break16, ex9.it */ | |
| 7484 | /* Only consider range of v3 break16. */ | |
| 7485 | insn = N32_TYPE0 (MISC, (N16_IMM5U (insn16) << 5) | N32_MISC_BREAK); | |
| 7486 | goto done; | |
| 7487 | ||
| 7488 | case 0x3c: /* ifcall9 */ | |
| 7489 | insn = N32_BR2 (IFCALL, 0, N16_IMM9U (insn16)); | |
| 7490 | goto done; | |
| 7491 | case 0x3d: /* movpi45 */ | |
| 7492 | insn = N32_TYPE1 (MOVI, N16_RT4 (insn16), N16_IMM5U (insn16) + 16); | |
| 7493 | goto done; | |
| 7494 | ||
| 7495 | case 0x3f: /* MISC33 */ | |
| 1c8f6a4d | 7496 | switch (insn16 & 0x7) |
| 35c08157 KLC |
7497 | { |
| 7498 | case 2: /* neg33 */ | |
| 7499 | insn = N32_TYPE2 (SUBRI, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
| 7500 | break; | |
| 7501 | case 3: /* not33 */ | |
| 1c8f6a4d KLC |
7502 | insn = N32_ALU1 (NOR, N16_RT3 (insn16), N16_RA3 (insn16), |
| 7503 | N16_RA3 (insn16)); | |
| 35c08157 KLC |
7504 | break; |
| 7505 | case 4: /* mul33 */ | |
| 1c8f6a4d KLC |
7506 | insn = N32_ALU2 (MUL, N16_RT3 (insn16), N16_RT3 (insn16), |
| 7507 | N16_RA3 (insn16)); | |
| 35c08157 KLC |
7508 | break; |
| 7509 | case 5: /* xor33 */ | |
| 1c8f6a4d KLC |
7510 | insn = N32_ALU1 (XOR, N16_RT3 (insn16), N16_RT3 (insn16), |
| 7511 | N16_RA3 (insn16)); | |
| 35c08157 KLC |
7512 | break; |
| 7513 | case 6: /* and33 */ | |
| 1c8f6a4d KLC |
7514 | insn = N32_ALU1 (AND, N16_RT3 (insn16), N16_RT3 (insn16), |
| 7515 | N16_RA3 (insn16)); | |
| 35c08157 KLC |
7516 | break; |
| 7517 | case 7: /* or33 */ | |
| 1c8f6a4d KLC |
7518 | insn = N32_ALU1 (OR, N16_RT3 (insn16), N16_RT3 (insn16), |
| 7519 | N16_RA3 (insn16)); | |
| 35c08157 KLC |
7520 | break; |
| 7521 | } | |
| 7522 | goto done; | |
| 7523 | ||
| 1c8f6a4d | 7524 | case 0xb: |
| 35c08157 KLC |
7525 | switch (insn16 & 0x7) |
| 7526 | { | |
| 7527 | case 0: /* zeb33 */ | |
| 7528 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 0xff); | |
| 7529 | break; | |
| 7530 | case 1: /* zeh33 */ | |
| 7531 | insn = N32_ALU1 (ZEH, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
| 7532 | break; | |
| 7533 | case 2: /* seb33 */ | |
| 7534 | insn = N32_ALU1 (SEB, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
| 7535 | break; | |
| 7536 | case 3: /* seh33 */ | |
| 7537 | insn = N32_ALU1 (SEH, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
| 7538 | break; | |
| 7539 | case 4: /* xlsb33 */ | |
| 7540 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 1); | |
| 7541 | break; | |
| 7542 | case 5: /* x11b33 */ | |
| 7543 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 0x7ff); | |
| 7544 | break; | |
| 7545 | case 6: /* bmski33 */ | |
| 7546 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RT3 (insn16), | |
| 1c8f6a4d | 7547 | 1 << __GF (insn16, 3, 3)); |
| 35c08157 KLC |
7548 | break; |
| 7549 | case 7: /* fexti33 */ | |
| 7550 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RT3 (insn16), | |
| 1c8f6a4d | 7551 | (1 << (__GF (insn16, 3, 3) + 1)) - 1); |
| 35c08157 KLC |
7552 | break; |
| 7553 | } | |
| 7554 | goto done; | |
| 7555 | } | |
| 7556 | ||
| 7557 | switch (__GF (insn16, 10, 5)) | |
| 7558 | { | |
| 7559 | case 0x0: /* mov55 or ifret16 */ | |
| 7560 | if (mach >= MACH_V3 && N16_RT5 (insn16) == REG_SP | |
| 7561 | && N16_RT5 (insn16) == N16_RA5 (insn16)) | |
| 1c8f6a4d | 7562 | insn = N32_JREG (JR, 0, 0, 0, 3); |
| 35c08157 | 7563 | else |
| 1c8f6a4d | 7564 | insn = N32_TYPE2 (ADDI, N16_RT5 (insn16), N16_RA5 (insn16), 0); |
| 35c08157 KLC |
7565 | goto done; |
| 7566 | case 0x1: /* movi55 */ | |
| 7567 | insn = N32_TYPE1 (MOVI, N16_RT5 (insn16), N16_IMM5S (insn16)); | |
| 7568 | goto done; | |
| 7569 | case 0x1b: /* addi10s (V2) */ | |
| 7570 | insn = N32_TYPE2 (ADDI, REG_SP, REG_SP, N16_IMM10S (insn16)); | |
| 7571 | goto done; | |
| 7572 | } | |
| 7573 | ||
| 7574 | switch (__GF (insn16, 11, 4)) | |
| 7575 | { | |
| 7576 | case 0x7: /* lwi37.fp/swi37.fp */ | |
| 4ec521f2 | 7577 | if (insn16 & N32_BIT (7)) /* swi37.fp */ |
| 35c08157 KLC |
7578 | insn = N32_TYPE2 (SWI, N16_RT38 (insn16), REG_FP, N16_IMM7U (insn16)); |
| 7579 | else /* lwi37.fp */ | |
| 7580 | insn = N32_TYPE2 (LWI, N16_RT38 (insn16), REG_FP, N16_IMM7U (insn16)); | |
| 7581 | goto done; | |
| 7582 | case 0x8: /* beqz38 */ | |
| 7583 | insn = N32_BR2 (BEQZ, N16_RT38 (insn16), N16_IMM8S (insn16)); | |
| 7584 | goto done; | |
| 7585 | case 0x9: /* bnez38 */ | |
| 7586 | insn = N32_BR2 (BNEZ, N16_RT38 (insn16), N16_IMM8S (insn16)); | |
| 7587 | goto done; | |
| 7588 | case 0xa: /* beqs38/j8, implied r5 */ | |
| 7589 | if (N16_RT38 (insn16) == 5) | |
| 7590 | insn = N32_JI (J, N16_IMM8S (insn16)); | |
| 7591 | else | |
| 7592 | insn = N32_BR1 (BEQ, N16_RT38 (insn16), REG_R5, N16_IMM8S (insn16)); | |
| 7593 | goto done; | |
| 7594 | case 0xb: /* bnes38 and others */ | |
| 7595 | if (N16_RT38 (insn16) == 5) | |
| 7596 | { | |
| 7597 | switch (__GF (insn16, 5, 3)) | |
| 7598 | { | |
| 7599 | case 0: /* jr5 */ | |
| 7600 | insn = N32_JREG (JR, 0, N16_RA5 (insn16), 0, 0); | |
| 7601 | break; | |
| 7602 | case 4: /* ret5 */ | |
| 7603 | insn = N32_JREG (JR, 0, N16_RA5 (insn16), 0, 1); | |
| 7604 | break; | |
| 7605 | case 1: /* jral5 */ | |
| 7606 | insn = N32_JREG (JRAL, REG_LP, N16_RA5 (insn16), 0, 0); | |
| 7607 | break; | |
| 7608 | case 2: /* ex9.it imm5 */ | |
| 7609 | /* ex9.it had no 32-bit variantl. */ | |
| 7610 | break; | |
| 7611 | case 5: /* add5.pc */ | |
| 7612 | /* add5.pc had no 32-bit variantl. */ | |
| 7613 | break; | |
| 7614 | } | |
| 7615 | } | |
| 7616 | else /* bnes38 */ | |
| 7617 | insn = N32_BR1 (BNE, N16_RT38 (insn16), REG_R5, N16_IMM8S (insn16)); | |
| 7618 | goto done; | |
| 7619 | case 0xe: /* lwi37/swi37 */ | |
| 7620 | if (insn16 & (1 << 7)) /* swi37.sp */ | |
| 7621 | insn = N32_TYPE2 (SWI, N16_RT38 (insn16), REG_SP, N16_IMM7U (insn16)); | |
| 7622 | else /* lwi37.sp */ | |
| 7623 | insn = N32_TYPE2 (LWI, N16_RT38 (insn16), REG_SP, N16_IMM7U (insn16)); | |
| 7624 | goto done; | |
| 7625 | } | |
| 7626 | ||
| 7627 | done: | |
| 7628 | if (insn & 0x80000000) | |
| 7629 | return 0; | |
| 7630 | ||
| 7631 | if (pinsn) | |
| 7632 | *pinsn = insn; | |
| 7633 | return 1; | |
| 7634 | } | |
| 7635 | \f | |
| 7636 | static bfd_boolean | |
| 7637 | is_sda_access_insn (unsigned long insn) | |
| 7638 | { | |
| 7639 | switch (N32_OP6 (insn)) | |
| 7640 | { | |
| 7641 | case N32_OP6_LWI: | |
| 7642 | case N32_OP6_LHI: | |
| 7643 | case N32_OP6_LHSI: | |
| 7644 | case N32_OP6_LBI: | |
| 7645 | case N32_OP6_LBSI: | |
| 7646 | case N32_OP6_SWI: | |
| 7647 | case N32_OP6_SHI: | |
| 7648 | case N32_OP6_SBI: | |
| 7649 | case N32_OP6_LWC: | |
| 7650 | case N32_OP6_LDC: | |
| 7651 | case N32_OP6_SWC: | |
| 7652 | case N32_OP6_SDC: | |
| 7653 | return TRUE; | |
| 7654 | default: | |
| 7655 | ; | |
| 7656 | } | |
| 7657 | return FALSE; | |
| 7658 | } | |
| 7659 | ||
| 7660 | static unsigned long | |
| 7661 | turn_insn_to_sda_access (uint32_t insn, bfd_signed_vma type, uint32_t *pinsn) | |
| 7662 | { | |
| 7663 | uint32_t oinsn = 0; | |
| 7664 | ||
| 7665 | switch (type) | |
| 7666 | { | |
| 7667 | case R_NDS32_GOT_LO12: | |
| 7668 | case R_NDS32_GOTOFF_LO12: | |
| 7669 | case R_NDS32_PLTREL_LO12: | |
| 7670 | case R_NDS32_PLT_GOTREL_LO12: | |
| 7671 | case R_NDS32_LO12S0_RELA: | |
| 7672 | switch (N32_OP6 (insn)) | |
| 7673 | { | |
| 7674 | case N32_OP6_LBI: | |
| 7675 | /* lbi.gp */ | |
| 7676 | oinsn = N32_TYPE1 (LBGP, N32_RT5 (insn), 0); | |
| 7677 | break; | |
| 7678 | case N32_OP6_LBSI: | |
| 7679 | /* lbsi.gp */ | |
| 4ec521f2 | 7680 | oinsn = N32_TYPE1 (LBGP, N32_RT5 (insn), N32_BIT (19)); |
| 35c08157 KLC |
7681 | break; |
| 7682 | case N32_OP6_SBI: | |
| 7683 | /* sbi.gp */ | |
| 7684 | oinsn = N32_TYPE1 (SBGP, N32_RT5 (insn), 0); | |
| 7685 | break; | |
| 7686 | case N32_OP6_ORI: | |
| 7687 | /* addi.gp */ | |
| 4ec521f2 | 7688 | oinsn = N32_TYPE1 (SBGP, N32_RT5 (insn), N32_BIT (19)); |
| 35c08157 KLC |
7689 | break; |
| 7690 | } | |
| 7691 | break; | |
| 7692 | ||
| 7693 | case R_NDS32_LO12S1_RELA: | |
| 7694 | switch (N32_OP6 (insn)) | |
| 7695 | { | |
| 7696 | case N32_OP6_LHI: | |
| 7697 | /* lhi.gp */ | |
| 7698 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), 0); | |
| 7699 | break; | |
| 7700 | case N32_OP6_LHSI: | |
| 7701 | /* lhsi.gp */ | |
| 4ec521f2 | 7702 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), N32_BIT (18)); |
| 35c08157 KLC |
7703 | break; |
| 7704 | case N32_OP6_SHI: | |
| 7705 | /* shi.gp */ | |
| 4ec521f2 | 7706 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), N32_BIT (19)); |
| 35c08157 KLC |
7707 | break; |
| 7708 | } | |
| 7709 | break; | |
| 7710 | ||
| 7711 | case R_NDS32_LO12S2_RELA: | |
| 7712 | switch (N32_OP6 (insn)) | |
| 7713 | { | |
| 7714 | case N32_OP6_LWI: | |
| 7715 | /* lwi.gp */ | |
| 7716 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (6, 17, 3)); | |
| 7717 | break; | |
| 7718 | case N32_OP6_SWI: | |
| 7719 | /* swi.gp */ | |
| 7720 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (7, 17, 3)); | |
| 7721 | break; | |
| 7722 | } | |
| 7723 | break; | |
| 7724 | ||
| 7725 | case R_NDS32_LO12S2_DP_RELA: | |
| 7726 | case R_NDS32_LO12S2_SP_RELA: | |
| 7727 | oinsn = (insn & 0x7ff07000) | (REG_GP << 15); | |
| 7728 | break; | |
| 7729 | } | |
| 7730 | ||
| 7731 | if (oinsn) | |
| 7732 | *pinsn = oinsn; | |
| 7733 | ||
| 7734 | return oinsn != 0; | |
| 7735 | } | |
| 7736 | ||
| 7737 | /* Linker hasn't found the correct merge section for non-section symbol | |
| 7738 | in relax time, this work is left to the function elf_link_input_bfd(). | |
| 7739 | So for non-section symbol, _bfd_merged_section_offset is also needed | |
| 7740 | to find the correct symbol address. */ | |
| 7741 | ||
| 7742 | static bfd_vma | |
| 7743 | nds32_elf_rela_local_sym (bfd *abfd, Elf_Internal_Sym *sym, | |
| 7744 | asection **psec, Elf_Internal_Rela *rel) | |
| 7745 | { | |
| 7746 | asection *sec = *psec; | |
| 7747 | bfd_vma relocation; | |
| 7748 | ||
| 7749 | relocation = (sec->output_section->vma | |
| 7750 | + sec->output_offset + sym->st_value); | |
| 7751 | if ((sec->flags & SEC_MERGE) && sec->sec_info_type == SEC_INFO_TYPE_MERGE) | |
| 7752 | { | |
| 7753 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 7754 | rel->r_addend = | |
| 7755 | _bfd_merged_section_offset (abfd, psec, | |
| 7756 | elf_section_data (sec)->sec_info, | |
| 7757 | sym->st_value + rel->r_addend); | |
| 7758 | else | |
| 7759 | rel->r_addend = | |
| 7760 | _bfd_merged_section_offset (abfd, psec, | |
| 7761 | elf_section_data (sec)->sec_info, | |
| 7762 | sym->st_value) + rel->r_addend; | |
| 7763 | ||
| 7764 | if (sec != *psec) | |
| 7765 | { | |
| 7766 | /* If we have changed the section, and our original section is | |
| 7767 | marked with SEC_EXCLUDE, it means that the original | |
| 7768 | SEC_MERGE section has been completely subsumed in some | |
| 7769 | other SEC_MERGE section. In this case, we need to leave | |
| 7770 | some info around for --emit-relocs. */ | |
| 7771 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
| 7772 | sec->kept_section = *psec; | |
| 7773 | sec = *psec; | |
| 7774 | } | |
| 7775 | rel->r_addend -= relocation; | |
| 7776 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
| 7777 | } | |
| 7778 | return relocation; | |
| 7779 | } | |
| 7780 | ||
| 7781 | static bfd_vma | |
| 7782 | calculate_memory_address (bfd *abfd, Elf_Internal_Rela *irel, | |
| 7783 | Elf_Internal_Sym *isymbuf, | |
| 7784 | Elf_Internal_Shdr *symtab_hdr) | |
| 7785 | { | |
| 7786 | bfd_signed_vma foff; | |
| 7787 | bfd_vma symval, addend; | |
| 7788 | Elf_Internal_Rela irel_fn; | |
| 7789 | Elf_Internal_Sym *isym; | |
| 7790 | asection *sym_sec; | |
| 7791 | ||
| 7792 | /* Get the value of the symbol referred to by the reloc. */ | |
| 7793 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
| 7794 | { | |
| 7795 | /* A local symbol. */ | |
| 7796 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
| 7797 | ||
| 7798 | if (isym->st_shndx == SHN_UNDEF) | |
| 7799 | sym_sec = bfd_und_section_ptr; | |
| 7800 | else if (isym->st_shndx == SHN_ABS) | |
| 7801 | sym_sec = bfd_abs_section_ptr; | |
| 7802 | else if (isym->st_shndx == SHN_COMMON) | |
| 7803 | sym_sec = bfd_com_section_ptr; | |
| 7804 | else | |
| 7805 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 7806 | memcpy (&irel_fn, irel, sizeof (Elf_Internal_Rela)); | |
| 7807 | symval = nds32_elf_rela_local_sym (abfd, isym, &sym_sec, &irel_fn); | |
| 7808 | addend = irel_fn.r_addend; | |
| 7809 | } | |
| 7810 | else | |
| 7811 | { | |
| 7812 | unsigned long indx; | |
| 7813 | struct elf_link_hash_entry *h; | |
| 7814 | ||
| 7815 | /* An external symbol. */ | |
| 7816 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
| 7817 | h = elf_sym_hashes (abfd)[indx]; | |
| 7818 | BFD_ASSERT (h != NULL); | |
| 7819 | ||
| 7820 | while (h->root.type == bfd_link_hash_indirect | |
| 7821 | || h->root.type == bfd_link_hash_warning) | |
| 7822 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 7823 | ||
| 7824 | if (h->root.type != bfd_link_hash_defined | |
| 7825 | && h->root.type != bfd_link_hash_defweak) | |
| 7826 | /* This appears to be a reference to an undefined | |
| 7827 | symbol. Just ignore it--it will be caught by the | |
| 7828 | regular reloc processing. */ | |
| 7829 | return 0; | |
| 7830 | ||
| 7831 | if (h->root.u.def.section->flags & SEC_MERGE) | |
| 7832 | { | |
| 7833 | sym_sec = h->root.u.def.section; | |
| 7834 | symval = _bfd_merged_section_offset (abfd, &sym_sec, elf_section_data | |
| 7835 | (sym_sec)->sec_info, h->root.u.def.value); | |
| 7836 | symval = symval + sym_sec->output_section->vma | |
| 7837 | + sym_sec->output_offset; | |
| 7838 | } | |
| 7839 | else | |
| 7840 | symval = (h->root.u.def.value | |
| 7841 | + h->root.u.def.section->output_section->vma | |
| 7842 | + h->root.u.def.section->output_offset); | |
| 7843 | addend = irel->r_addend; | |
| 7844 | } | |
| 7845 | ||
| 7846 | foff = symval + addend; | |
| 7847 | ||
| 7848 | return foff; | |
| 7849 | } | |
| 7850 | ||
| 7851 | static bfd_vma | |
| 7852 | calculate_got_memory_address (bfd *abfd, struct bfd_link_info *link_info, | |
| 7853 | Elf_Internal_Rela *irel, | |
| 7854 | Elf_Internal_Shdr *symtab_hdr) | |
| 7855 | { | |
| 7856 | int symndx; | |
| 7857 | bfd_vma *local_got_offsets; | |
| 7858 | /* Get the value of the symbol referred to by the reloc. */ | |
| 7859 | struct elf_link_hash_entry *h; | |
| 7860 | struct elf_nds32_link_hash_table *htab = nds32_elf_hash_table (link_info); | |
| 7861 | ||
| 7862 | /* An external symbol. */ | |
| 7863 | symndx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
| 7864 | h = elf_sym_hashes (abfd)[symndx]; | |
| 7865 | while (h->root.type == bfd_link_hash_indirect | |
| 7866 | || h->root.type == bfd_link_hash_warning) | |
| 7867 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 7868 | ||
| 7869 | if (symndx >= 0) | |
| 7870 | { | |
| 7871 | BFD_ASSERT (h != NULL); | |
| ce558b89 AM |
7872 | return (htab->root.sgot->output_section->vma |
| 7873 | + htab->root.sgot->output_offset | |
| 7874 | + h->got.offset); | |
| 35c08157 KLC |
7875 | } |
| 7876 | else | |
| 7877 | { | |
| 7878 | local_got_offsets = elf_local_got_offsets (abfd); | |
| 7879 | BFD_ASSERT (local_got_offsets != NULL); | |
| ce558b89 AM |
7880 | return (htab->root.sgot->output_section->vma |
| 7881 | + htab->root.sgot->output_offset | |
| 7882 | + local_got_offsets[ELF32_R_SYM (irel->r_info)]); | |
| 35c08157 KLC |
7883 | } |
| 7884 | ||
| 7885 | /* The _GLOBAL_OFFSET_TABLE_ may be undefweak(or should be?). */ | |
| 7886 | /* The check of h->root.type is passed. */ | |
| 7887 | } | |
| 7888 | ||
| 7889 | static int | |
| 7890 | is_16bit_NOP (bfd *abfd ATTRIBUTE_UNUSED, | |
| 7891 | asection *sec, Elf_Internal_Rela *rel) | |
| 7892 | { | |
| 7893 | bfd_byte *contents; | |
| 7894 | unsigned short insn16; | |
| 7895 | ||
| 7896 | if (!(rel->r_addend & R_NDS32_INSN16_CONVERT_FLAG)) | |
| 7897 | return FALSE; | |
| 7898 | contents = elf_section_data (sec)->this_hdr.contents; | |
| 7899 | insn16 = bfd_getb16 (contents + rel->r_offset); | |
| 7900 | if (insn16 == NDS32_NOP16) | |
| 7901 | return TRUE; | |
| 7902 | return FALSE; | |
| 7903 | } | |
| 7904 | ||
| 7905 | /* It checks whether the instruction could be converted to | |
| 7906 | 16-bit form and returns the converted one. | |
| 7907 | ||
| 7908 | `internal_relocs' is supposed to be sorted. */ | |
| 7909 | ||
| 7910 | static int | |
| 7911 | is_convert_32_to_16 (bfd *abfd, asection *sec, | |
| 7912 | Elf_Internal_Rela *reloc, | |
| 7913 | Elf_Internal_Rela *internal_relocs, | |
| 7914 | Elf_Internal_Rela *irelend, | |
| 7915 | uint16_t *insn16) | |
| 7916 | { | |
| 7917 | #define NORMAL_32_TO_16 (1 << 0) | |
| 7918 | #define SPECIAL_32_TO_16 (1 << 1) | |
| 7919 | bfd_byte *contents = NULL; | |
| 7920 | bfd_signed_vma off; | |
| 7921 | bfd_vma mem_addr; | |
| 7922 | uint32_t insn = 0; | |
| 7923 | Elf_Internal_Rela *pc_rel; | |
| 7924 | int pic_ext_target = 0; | |
| 7925 | Elf_Internal_Shdr *symtab_hdr; | |
| 7926 | Elf_Internal_Sym *isymbuf = NULL; | |
| 7927 | int convert_type; | |
| 7928 | bfd_vma offset; | |
| 7929 | ||
| 7930 | if (reloc->r_offset + 4 > sec->size) | |
| 7931 | return FALSE; | |
| 7932 | ||
| 7933 | offset = reloc->r_offset; | |
| 7934 | ||
| 0c4bd9d9 | 7935 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE)) |
| 35c08157 KLC |
7936 | return FALSE; |
| 7937 | insn = bfd_getb32 (contents + offset); | |
| 7938 | ||
| 7939 | if (nds32_convert_32_to_16 (abfd, insn, insn16, NULL)) | |
| 7940 | convert_type = NORMAL_32_TO_16; | |
| 7941 | else if (special_convert_32_to_16 (insn, insn16, reloc)) | |
| 7942 | convert_type = SPECIAL_32_TO_16; | |
| 7943 | else | |
| 7944 | return FALSE; | |
| 7945 | ||
| 7946 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
| 7947 | if (!nds32_get_local_syms (abfd, sec, &isymbuf)) | |
| 7948 | return FALSE; | |
| 7949 | ||
| 7950 | /* Find the first relocation of the same relocation-type, | |
| 7951 | so we iteratie them forward. */ | |
| 7952 | pc_rel = reloc; | |
| 1c8f6a4d | 7953 | while ((pc_rel - 1) >= internal_relocs && pc_rel[-1].r_offset == offset) |
| 35c08157 KLC |
7954 | pc_rel--; |
| 7955 | ||
| 7956 | for (; pc_rel < irelend && pc_rel->r_offset == offset; pc_rel++) | |
| 7957 | { | |
| 7958 | if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_15_PCREL_RELA | |
| 7959 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17_PCREL_RELA | |
| 7960 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PCREL_RELA | |
| 7961 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PLTREL) | |
| 7962 | { | |
| 7963 | off = calculate_offset (abfd, sec, pc_rel, isymbuf, symtab_hdr, | |
| 7964 | &pic_ext_target); | |
| 1c8f6a4d KLC |
7965 | if (off >= ACCURATE_8BIT_S1 || off < -ACCURATE_8BIT_S1 |
| 7966 | || off == 0) | |
| 35c08157 KLC |
7967 | return FALSE; |
| 7968 | break; | |
| 7969 | } | |
| 7970 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_20_RELA) | |
| 7971 | { | |
| 7972 | /* movi => movi55 */ | |
| 1c8f6a4d KLC |
7973 | mem_addr = calculate_memory_address (abfd, pc_rel, isymbuf, |
| 7974 | symtab_hdr); | |
| 7975 | /* mem_addr is unsigned, but the value should | |
| 7976 | be between [-16, 15]. */ | |
| 35c08157 KLC |
7977 | if ((mem_addr + 0x10) >> 5) |
| 7978 | return FALSE; | |
| 7979 | break; | |
| 7980 | } | |
| 1c8f6a4d KLC |
7981 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_TLS_LE_20) |
| 7982 | || (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_TLS_LE_LO12)) | |
| 7983 | { | |
| 7984 | /* It never happen movi to movi55 for R_NDS32_TLS_LE_20, | |
| 7985 | because it can be relaxed to addi for TLS_LE_ADD. */ | |
| 7986 | return FALSE; | |
| 7987 | } | |
| 35c08157 KLC |
7988 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA15S2_RELA |
| 7989 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA17S2_RELA) | |
| 7990 | && (reloc->r_addend & R_NDS32_INSN16_FP7U2_FLAG) | |
| 7991 | && convert_type == SPECIAL_32_TO_16) | |
| 7992 | { | |
| 7993 | /* fp-as-gp | |
| 7994 | We've selected a best fp-base for this access, so we can | |
| 7995 | always resolve it anyway. Do nothing. */ | |
| 7996 | break; | |
| 7997 | } | |
| 7998 | else if ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_NONE | |
| 7999 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_RELA_GNU_VTINHERIT)) | |
| 8000 | || ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_RELA_GNU_VTENTRY) | |
| 8001 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_INSN16)) | |
| 8002 | || ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_LOADSTORE) | |
| 8003 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_DWARF2_OP1_RELA))) | |
| 8004 | { | |
| 1c8f6a4d KLC |
8005 | /* Prevent unresolved addi instruction translate |
| 8006 | to addi45 or addi333. */ | |
| 35c08157 KLC |
8007 | return FALSE; |
| 8008 | } | |
| 1c8f6a4d KLC |
8009 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17IFC_PCREL_RELA)) |
| 8010 | { | |
| 8011 | off = calculate_offset (abfd, sec, pc_rel, isymbuf, symtab_hdr, | |
| 8012 | &pic_ext_target); | |
| 8013 | if (off >= ACCURATE_U9BIT_S1 || off <= 0) | |
| 8014 | return FALSE; | |
| 8015 | break; | |
| 8016 | } | |
| 35c08157 KLC |
8017 | } |
| 8018 | ||
| 8019 | return TRUE; | |
| 8020 | } | |
| 8021 | ||
| 8022 | static void | |
| 8023 | nds32_elf_write_16 (bfd *abfd ATTRIBUTE_UNUSED, bfd_byte *contents, | |
| 8024 | Elf_Internal_Rela *reloc, | |
| 8025 | Elf_Internal_Rela *internal_relocs, | |
| 8026 | Elf_Internal_Rela *irelend, | |
| 8027 | unsigned short insn16) | |
| 8028 | { | |
| 8029 | Elf_Internal_Rela *pc_rel; | |
| 8030 | bfd_vma offset; | |
| 8031 | ||
| 8032 | offset = reloc->r_offset; | |
| 8033 | bfd_putb16 (insn16, contents + offset); | |
| 8034 | /* Find the first relocation of the same relocation-type, | |
| 8035 | so we iteratie them forward. */ | |
| 8036 | pc_rel = reloc; | |
| 8037 | while ((pc_rel - 1) > internal_relocs && pc_rel[-1].r_offset == offset) | |
| 8038 | pc_rel--; | |
| 8039 | ||
| 8040 | for (; pc_rel < irelend && pc_rel->r_offset == offset; pc_rel++) | |
| 8041 | { | |
| 8042 | if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_15_PCREL_RELA | |
| 8043 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17_PCREL_RELA | |
| 8044 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PCREL_RELA) | |
| 8045 | { | |
| 8046 | pc_rel->r_info = | |
| 8047 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_9_PCREL_RELA); | |
| 8048 | } | |
| 8049 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PLTREL) | |
| 8050 | pc_rel->r_info = | |
| 8051 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_9_PLTREL); | |
| 8052 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_20_RELA) | |
| 8053 | pc_rel->r_info = | |
| 8054 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_5_RELA); | |
| 8055 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA15S2_RELA | |
| 8056 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA17S2_RELA) | |
| 8057 | pc_rel->r_info = | |
| 8058 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_SDA_FP7U2_RELA); | |
| 1c8f6a4d KLC |
8059 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17IFC_PCREL_RELA)) |
| 8060 | pc_rel->r_info = | |
| 8061 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_10IFCU_PCREL_RELA); | |
| 35c08157 KLC |
8062 | } |
| 8063 | } | |
| 8064 | ||
| 8065 | /* Find a relocation of type specified by `reloc_type' | |
| 8066 | of the same r_offset with reloc. | |
| 8067 | If not found, return irelend. | |
| 8068 | ||
| 8069 | Assuming relocations are sorted by r_offset, | |
| 8070 | we find the relocation from `reloc' backward untill relocs, | |
| 8071 | or find it from `reloc' forward untill irelend. */ | |
| 8072 | ||
| 8073 | static Elf_Internal_Rela * | |
| 8074 | find_relocs_at_address (Elf_Internal_Rela *reloc, | |
| 8075 | Elf_Internal_Rela *relocs, | |
| 8076 | Elf_Internal_Rela *irelend, | |
| 8077 | enum elf_nds32_reloc_type reloc_type) | |
| 8078 | { | |
| 8079 | Elf_Internal_Rela *rel_t; | |
| 8080 | ||
| 8081 | /* Find backward. */ | |
| 8082 | for (rel_t = reloc; | |
| 8083 | rel_t >= relocs && rel_t->r_offset == reloc->r_offset; | |
| 8084 | rel_t--) | |
| 8085 | if (ELF32_R_TYPE (rel_t->r_info) == reloc_type) | |
| 8086 | return rel_t; | |
| 8087 | ||
| 1c8f6a4d | 8088 | /* We didn't find it backward. Try find it forward. */ |
| 35c08157 KLC |
8089 | for (rel_t = reloc; |
| 8090 | rel_t < irelend && rel_t->r_offset == reloc->r_offset; | |
| 8091 | rel_t++) | |
| 8092 | if (ELF32_R_TYPE (rel_t->r_info) == reloc_type) | |
| 8093 | return rel_t; | |
| 8094 | ||
| 8095 | return irelend; | |
| 8096 | } | |
| 8097 | ||
| 8098 | /* Find a relocation of specified type and offset. | |
| 8099 | `reloc' is just a refence point to find a relocation at specified offset. | |
| 8100 | If not found, return irelend. | |
| 8101 | ||
| 8102 | Assuming relocations are sorted by r_offset, | |
| 8103 | we find the relocation from `reloc' backward untill relocs, | |
| 8104 | or find it from `reloc' forward untill irelend. */ | |
| 8105 | ||
| 8106 | static Elf_Internal_Rela * | |
| 8107 | find_relocs_at_address_addr (Elf_Internal_Rela *reloc, | |
| 8108 | Elf_Internal_Rela *relocs, | |
| 8109 | Elf_Internal_Rela *irelend, | |
| 6cae483a | 8110 | enum elf_nds32_reloc_type reloc_type, |
| 35c08157 KLC |
8111 | bfd_vma offset_p) |
| 8112 | { | |
| 8113 | Elf_Internal_Rela *rel_t = NULL; | |
| 8114 | ||
| 8115 | /* First, we try to find a relocation of offset `offset_p', | |
| 8116 | and then we use find_relocs_at_address to find specific type. */ | |
| 8117 | ||
| 8118 | if (reloc->r_offset > offset_p) | |
| 8119 | { | |
| 8120 | /* Find backward. */ | |
| 8121 | for (rel_t = reloc; | |
| 8122 | rel_t >= relocs && rel_t->r_offset > offset_p; rel_t--) | |
| 8123 | /* Do nothing. */; | |
| 8124 | } | |
| 8125 | else if (reloc->r_offset < offset_p) | |
| 8126 | { | |
| 8127 | /* Find forward. */ | |
| 8128 | for (rel_t = reloc; | |
| 8129 | rel_t < irelend && rel_t->r_offset < offset_p; rel_t++) | |
| 8130 | /* Do nothing. */; | |
| 8131 | } | |
| 8132 | else | |
| 8133 | rel_t = reloc; | |
| 8134 | ||
| 8135 | /* Not found? */ | |
| 8136 | if (rel_t < relocs || rel_t == irelend || rel_t->r_offset != offset_p) | |
| 8137 | return irelend; | |
| 8138 | ||
| 8139 | return find_relocs_at_address (rel_t, relocs, irelend, reloc_type); | |
| 8140 | } | |
| 8141 | ||
| 8142 | static bfd_boolean | |
| 8143 | nds32_elf_check_dup_relocs (Elf_Internal_Rela *reloc, | |
| 8144 | Elf_Internal_Rela *internal_relocs, | |
| 8145 | Elf_Internal_Rela *irelend, | |
| 8146 | unsigned char reloc_type) | |
| 8147 | { | |
| 8148 | Elf_Internal_Rela *rel_t; | |
| 8149 | ||
| 8150 | for (rel_t = reloc; | |
| 8151 | rel_t >= internal_relocs && rel_t->r_offset == reloc->r_offset; | |
| 8152 | rel_t--) | |
| 8153 | if (ELF32_R_TYPE (rel_t->r_info) == reloc_type) | |
| 8154 | { | |
| 8155 | if (ELF32_R_SYM (rel_t->r_info) == ELF32_R_SYM (reloc->r_info) | |
| 8156 | && rel_t->r_addend == reloc->r_addend) | |
| 8157 | continue; | |
| 8158 | return TRUE; | |
| 8159 | } | |
| 8160 | ||
| 8161 | for (rel_t = reloc; rel_t < irelend && rel_t->r_offset == reloc->r_offset; | |
| 8162 | rel_t++) | |
| 8163 | if (ELF32_R_TYPE (rel_t->r_info) == reloc_type) | |
| 8164 | { | |
| 8165 | if (ELF32_R_SYM (rel_t->r_info) == ELF32_R_SYM (reloc->r_info) | |
| 8166 | && rel_t->r_addend == reloc->r_addend) | |
| 8167 | continue; | |
| 8168 | return TRUE; | |
| 8169 | } | |
| 8170 | ||
| 8171 | return FALSE; | |
| 8172 | } | |
| 8173 | ||
| 8174 | typedef struct nds32_elf_blank nds32_elf_blank_t; | |
| 8175 | struct nds32_elf_blank | |
| 8176 | { | |
| 8177 | /* Where the blank begins. */ | |
| 8178 | bfd_vma offset; | |
| 8179 | /* The size of the blank. */ | |
| 8180 | bfd_vma size; | |
| 8181 | /* The accumulative size before this blank. */ | |
| 8182 | bfd_vma total_size; | |
| 8183 | nds32_elf_blank_t *next; | |
| 8184 | nds32_elf_blank_t *prev; | |
| 8185 | }; | |
| 8186 | ||
| 8187 | static nds32_elf_blank_t *blank_free_list = NULL; | |
| 8188 | ||
| 8189 | static nds32_elf_blank_t * | |
| 8190 | create_nds32_elf_blank (bfd_vma offset_p, bfd_vma size_p) | |
| 8191 | { | |
| 8192 | nds32_elf_blank_t *blank_t; | |
| 8193 | ||
| 8194 | if (blank_free_list) | |
| 8195 | { | |
| 8196 | blank_t = blank_free_list; | |
| 8197 | blank_free_list = blank_free_list->next; | |
| 8198 | } | |
| 8199 | else | |
| 8200 | blank_t = bfd_malloc (sizeof (nds32_elf_blank_t)); | |
| 8201 | ||
| 8202 | if (blank_t == NULL) | |
| 8203 | return NULL; | |
| 8204 | ||
| 8205 | blank_t->offset = offset_p; | |
| 8206 | blank_t->size = size_p; | |
| 8207 | blank_t->total_size = 0; | |
| 8208 | blank_t->next = NULL; | |
| 8209 | blank_t->prev = NULL; | |
| 8210 | ||
| 8211 | return blank_t; | |
| 8212 | } | |
| 8213 | ||
| 8214 | static void | |
| 8215 | remove_nds32_elf_blank (nds32_elf_blank_t *blank_p) | |
| 8216 | { | |
| 8217 | if (blank_free_list) | |
| 8218 | { | |
| 8219 | blank_free_list->prev = blank_p; | |
| 8220 | blank_p->next = blank_free_list; | |
| 8221 | } | |
| 8222 | else | |
| 8223 | blank_p->next = NULL; | |
| 8224 | ||
| 8225 | blank_p->prev = NULL; | |
| 8226 | blank_free_list = blank_p; | |
| 8227 | } | |
| 8228 | ||
| 8229 | static void | |
| 8230 | clean_nds32_elf_blank (void) | |
| 8231 | { | |
| 8232 | nds32_elf_blank_t *blank_t; | |
| 8233 | ||
| 8234 | while (blank_free_list) | |
| 8235 | { | |
| 8236 | blank_t = blank_free_list; | |
| 8237 | blank_free_list = blank_free_list->next; | |
| 8238 | free (blank_t); | |
| 8239 | } | |
| 8240 | } | |
| 8241 | ||
| 8242 | static nds32_elf_blank_t * | |
| 8243 | search_nds32_elf_blank (nds32_elf_blank_t *blank_p, bfd_vma addr) | |
| 8244 | { | |
| 8245 | nds32_elf_blank_t *blank_t; | |
| 8246 | ||
| 8247 | if (!blank_p) | |
| 8248 | return NULL; | |
| 8249 | blank_t = blank_p; | |
| 8250 | ||
| 8251 | while (blank_t && addr < blank_t->offset) | |
| 8252 | blank_t = blank_t->prev; | |
| 8253 | while (blank_t && blank_t->next && addr >= blank_t->next->offset) | |
| 8254 | blank_t = blank_t->next; | |
| 8255 | ||
| 8256 | return blank_t; | |
| 8257 | } | |
| 8258 | ||
| 8259 | static bfd_vma | |
| 8260 | get_nds32_elf_blank_total (nds32_elf_blank_t **blank_p, bfd_vma addr, | |
| 8261 | int overwrite) | |
| 8262 | { | |
| 8263 | nds32_elf_blank_t *blank_t; | |
| 8264 | ||
| 8265 | blank_t = search_nds32_elf_blank (*blank_p, addr); | |
| 8266 | if (!blank_t) | |
| 8267 | return 0; | |
| 8268 | ||
| 8269 | if (overwrite) | |
| 8270 | *blank_p = blank_t; | |
| 8271 | ||
| 8272 | if (addr < blank_t->offset + blank_t->size) | |
| 8273 | return blank_t->total_size + (addr - blank_t->offset); | |
| 8274 | else | |
| 8275 | return blank_t->total_size + blank_t->size; | |
| 8276 | } | |
| 8277 | ||
| 8278 | static bfd_boolean | |
| 8279 | insert_nds32_elf_blank (nds32_elf_blank_t **blank_p, bfd_vma addr, bfd_vma len) | |
| 8280 | { | |
| 8281 | nds32_elf_blank_t *blank_t, *blank_t2; | |
| 8282 | ||
| 8283 | if (!*blank_p) | |
| 8284 | { | |
| 8285 | *blank_p = create_nds32_elf_blank (addr, len); | |
| 8286 | return *blank_p ? TRUE : FALSE; | |
| 8287 | } | |
| 8288 | ||
| 8289 | blank_t = search_nds32_elf_blank (*blank_p, addr); | |
| 8290 | ||
| 8291 | if (blank_t == NULL) | |
| 8292 | { | |
| 8293 | blank_t = create_nds32_elf_blank (addr, len); | |
| 8294 | if (!blank_t) | |
| 8295 | return FALSE; | |
| 8296 | while ((*blank_p)->prev != NULL) | |
| 8297 | *blank_p = (*blank_p)->prev; | |
| 8298 | blank_t->next = *blank_p; | |
| 8299 | (*blank_p)->prev = blank_t; | |
| 8300 | (*blank_p) = blank_t; | |
| 8301 | return TRUE; | |
| 8302 | } | |
| 8303 | ||
| 8304 | if (addr < blank_t->offset + blank_t->size) | |
| 8305 | { | |
| 8306 | if (addr > blank_t->offset + blank_t->size) | |
| 8307 | blank_t->size = addr - blank_t->offset; | |
| 8308 | } | |
| 8309 | else | |
| 8310 | { | |
| 8311 | blank_t2 = create_nds32_elf_blank (addr, len); | |
| 8312 | if (!blank_t2) | |
| 8313 | return FALSE; | |
| 8314 | if (blank_t->next) | |
| 8315 | { | |
| 8316 | blank_t->next->prev = blank_t2; | |
| 8317 | blank_t2->next = blank_t->next; | |
| 8318 | } | |
| 8319 | blank_t2->prev = blank_t; | |
| 8320 | blank_t->next = blank_t2; | |
| 8321 | *blank_p = blank_t2; | |
| 8322 | } | |
| 8323 | ||
| 8324 | return TRUE; | |
| 8325 | } | |
| 8326 | ||
| 8327 | static bfd_boolean | |
| 8328 | insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t **blank_p, bfd_vma addr, | |
| 8329 | bfd_vma len) | |
| 8330 | { | |
| 8331 | nds32_elf_blank_t *blank_t; | |
| 8332 | ||
| 8333 | if (!insert_nds32_elf_blank (blank_p, addr, len)) | |
| 8334 | return FALSE; | |
| 8335 | ||
| 8336 | blank_t = *blank_p; | |
| 8337 | ||
| 8338 | if (!blank_t->prev) | |
| 8339 | { | |
| 8340 | blank_t->total_size = 0; | |
| 8341 | blank_t = blank_t->next; | |
| 8342 | } | |
| 8343 | ||
| 8344 | while (blank_t) | |
| 8345 | { | |
| 8346 | blank_t->total_size = blank_t->prev->total_size + blank_t->prev->size; | |
| 8347 | blank_t = blank_t->next; | |
| 8348 | } | |
| 8349 | ||
| 8350 | return TRUE; | |
| 8351 | } | |
| 8352 | ||
| 8353 | static void | |
| 8354 | calc_nds32_blank_total (nds32_elf_blank_t *blank_p) | |
| 8355 | { | |
| 8356 | nds32_elf_blank_t *blank_t; | |
| 8357 | bfd_vma total_size = 0; | |
| 8358 | ||
| 8359 | if (!blank_p) | |
| 8360 | return; | |
| 8361 | ||
| 8362 | blank_t = blank_p; | |
| 8363 | while (blank_t->prev) | |
| 8364 | blank_t = blank_t->prev; | |
| 8365 | while (blank_t) | |
| 8366 | { | |
| 8367 | blank_t->total_size = total_size; | |
| 8368 | total_size += blank_t->size; | |
| 8369 | blank_t = blank_t->next; | |
| 8370 | } | |
| 8371 | } | |
| 8372 | ||
| 8373 | static bfd_boolean | |
| 8374 | nds32_elf_relax_delete_blanks (bfd *abfd, asection *sec, | |
| 8375 | nds32_elf_blank_t *blank_p) | |
| 8376 | { | |
| 8377 | Elf_Internal_Shdr *symtab_hdr; /* Symbol table header of this bfd. */ | |
| 1c8f6a4d | 8378 | Elf_Internal_Sym *isym = NULL; /* Symbol table of this bfd. */ |
| 35c08157 KLC |
8379 | Elf_Internal_Sym *isymend; /* Symbol entry iterator. */ |
| 8380 | unsigned int sec_shndx; /* The section the be relaxed. */ | |
| 8381 | bfd_byte *contents; /* Contents data of iterating section. */ | |
| 8382 | Elf_Internal_Rela *internal_relocs; | |
| 8383 | Elf_Internal_Rela *irel; | |
| 8384 | Elf_Internal_Rela *irelend; | |
| 8385 | struct elf_link_hash_entry **sym_hashes; | |
| 8386 | struct elf_link_hash_entry **end_hashes; | |
| 8387 | unsigned int symcount; | |
| 8388 | asection *sect; | |
| 8389 | nds32_elf_blank_t *blank_t; | |
| 8390 | nds32_elf_blank_t *blank_t2; | |
| 8391 | nds32_elf_blank_t *blank_head; | |
| 8392 | ||
| 8393 | blank_head = blank_t = blank_p; | |
| 8394 | while (blank_head->prev != NULL) | |
| 8395 | blank_head = blank_head->prev; | |
| 8396 | while (blank_t->next != NULL) | |
| 8397 | blank_t = blank_t->next; | |
| 8398 | ||
| 8399 | if (blank_t->offset + blank_t->size <= sec->size) | |
| 8400 | { | |
| 8401 | blank_t->next = create_nds32_elf_blank (sec->size + 4, 0); | |
| 8402 | blank_t->next->prev = blank_t; | |
| 8403 | } | |
| 8404 | if (blank_head->offset > 0) | |
| 8405 | { | |
| 8406 | blank_head->prev = create_nds32_elf_blank (0, 0); | |
| 8407 | blank_head->prev->next = blank_head; | |
| 8408 | blank_head = blank_head->prev; | |
| 8409 | } | |
| 8410 | ||
| 8411 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
| 8412 | ||
| 8413 | /* The deletion must stop at the next ALIGN reloc for an alignment | |
| 8414 | power larger than the number of bytes we are deleting. */ | |
| 8415 | ||
| 8416 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
| 8417 | if (!nds32_get_local_syms (abfd, sec, &isym)) | |
| 8418 | return FALSE; | |
| 8419 | ||
| 8420 | if (isym == NULL) | |
| 8421 | { | |
| 8422 | isym = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
| 8423 | symtab_hdr->sh_info, 0, NULL, NULL, NULL); | |
| 8424 | symtab_hdr->contents = (bfd_byte *) isym; | |
| 8425 | } | |
| 8426 | ||
| 8427 | if (isym == NULL || symtab_hdr->sh_info == 0) | |
| 8428 | return FALSE; | |
| 8429 | ||
| 8430 | blank_t = blank_head; | |
| 8431 | calc_nds32_blank_total (blank_head); | |
| 8432 | ||
| 8433 | for (sect = abfd->sections; sect != NULL; sect = sect->next) | |
| 8434 | { | |
| 8435 | /* Adjust all the relocs. */ | |
| 8436 | ||
| 8437 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
| 8438 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sect, NULL, NULL, | |
| 8439 | TRUE /* keep_memory */); | |
| 8440 | irelend = internal_relocs + sect->reloc_count; | |
| 8441 | ||
| 8442 | blank_t = blank_head; | |
| 8443 | blank_t2 = blank_head; | |
| 8444 | ||
| 8445 | if (!(sect->flags & SEC_RELOC)) | |
| 8446 | continue; | |
| 8447 | ||
| 0c4bd9d9 | 8448 | nds32_get_section_contents (abfd, sect, &contents, TRUE); |
| 35c08157 KLC |
8449 | |
| 8450 | for (irel = internal_relocs; irel < irelend; irel++) | |
| 8451 | { | |
| 8452 | bfd_vma raddr; | |
| 8453 | ||
| 8454 | if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_DIFF8 | |
| 8455 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_DIFF32 | |
| 8456 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx) | |
| 8457 | { | |
| 8458 | unsigned long val = 0; | |
| 1c8f6a4d KLC |
8459 | unsigned long mask; |
| 8460 | long before, between; | |
| 6cae483a | 8461 | long offset = 0; |
| 35c08157 KLC |
8462 | |
| 8463 | switch (ELF32_R_TYPE (irel->r_info)) | |
| 8464 | { | |
| 8465 | case R_NDS32_DIFF8: | |
| 1c8f6a4d | 8466 | offset = bfd_get_8 (abfd, contents + irel->r_offset); |
| 35c08157 KLC |
8467 | break; |
| 8468 | case R_NDS32_DIFF16: | |
| 1c8f6a4d | 8469 | offset = bfd_get_16 (abfd, contents + irel->r_offset); |
| 35c08157 KLC |
8470 | break; |
| 8471 | case R_NDS32_DIFF32: | |
| 8472 | val = bfd_get_32 (abfd, contents + irel->r_offset); | |
| 1c8f6a4d KLC |
8473 | /* Get the signed bit and mask for the high part. The |
| 8474 | gcc will alarm when right shift 32-bit since the | |
| 8475 | type size of long may be 32-bit. */ | |
| 8476 | mask = 0 - (val >> 31); | |
| 8477 | if (mask) | |
| 8478 | offset = (val | (mask - 0xffffffff)); | |
| 8479 | else | |
| 8480 | offset = val; | |
| 35c08157 KLC |
8481 | break; |
| 8482 | default: | |
| 8483 | BFD_ASSERT (0); | |
| 8484 | } | |
| 8485 | ||
| 8486 | /* DIFF value | |
| 8487 | 0 |encoded in location| | |
| 8488 | |------------|-------------------|--------- | |
| 8489 | sym+off(addend) | |
| 8490 | -- before ---| ***************** | |
| 8491 | --------------------- between ---| | |
| 8492 | ||
| 1c8f6a4d KLC |
8493 | We only care how much data are relax between DIFF, |
| 8494 | marked as ***. */ | |
| 35c08157 KLC |
8495 | |
| 8496 | before = get_nds32_elf_blank_total (&blank_t, irel->r_addend, 0); | |
| 1c8f6a4d KLC |
8497 | between = get_nds32_elf_blank_total (&blank_t, |
| 8498 | irel->r_addend + offset, 0); | |
| 35c08157 KLC |
8499 | if (between == before) |
| 8500 | goto done_adjust_diff; | |
| 8501 | ||
| 8502 | switch (ELF32_R_TYPE (irel->r_info)) | |
| 8503 | { | |
| 8504 | case R_NDS32_DIFF8: | |
| 1c8f6a4d KLC |
8505 | bfd_put_8 (abfd, offset - (between - before), |
| 8506 | contents + irel->r_offset); | |
| 35c08157 KLC |
8507 | break; |
| 8508 | case R_NDS32_DIFF16: | |
| 1c8f6a4d KLC |
8509 | bfd_put_16 (abfd, offset - (between - before), |
| 8510 | contents + irel->r_offset); | |
| 35c08157 KLC |
8511 | break; |
| 8512 | case R_NDS32_DIFF32: | |
| 1c8f6a4d KLC |
8513 | bfd_put_32 (abfd, offset - (between - before), |
| 8514 | contents + irel->r_offset); | |
| 35c08157 KLC |
8515 | break; |
| 8516 | } | |
| 8517 | } | |
| 8518 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_DIFF_ULEB128 | |
| 8519 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx) | |
| 8520 | { | |
| 8521 | bfd_vma val = 0; | |
| 8522 | unsigned int len = 0; | |
| 8523 | unsigned long before, between; | |
| 8524 | bfd_byte *endp, *p; | |
| 8525 | ||
| 4265548c PA |
8526 | val = _bfd_read_unsigned_leb128 (abfd, contents + irel->r_offset, |
| 8527 | &len); | |
| 35c08157 KLC |
8528 | |
| 8529 | before = get_nds32_elf_blank_total (&blank_t, irel->r_addend, 0); | |
| 1c8f6a4d KLC |
8530 | between = get_nds32_elf_blank_total (&blank_t, |
| 8531 | irel->r_addend + val, 0); | |
| 35c08157 KLC |
8532 | if (between == before) |
| 8533 | goto done_adjust_diff; | |
| 8534 | ||
| 8535 | p = contents + irel->r_offset; | |
| 8536 | endp = p + len -1; | |
| 8537 | memset (p, 0x80, len); | |
| 8538 | *(endp) = 0; | |
| 8539 | p = write_uleb128 (p, val - (between - before)) - 1; | |
| 8540 | if (p < endp) | |
| 8541 | *p |= 0x80; | |
| 8542 | } | |
| 8543 | done_adjust_diff: | |
| 8544 | ||
| 8545 | if (sec == sect) | |
| 8546 | { | |
| 8547 | raddr = irel->r_offset; | |
| 1c8f6a4d KLC |
8548 | irel->r_offset -= get_nds32_elf_blank_total (&blank_t2, |
| 8549 | irel->r_offset, 1); | |
| 35c08157 KLC |
8550 | |
| 8551 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE) | |
| 8552 | continue; | |
| 8553 | if (blank_t2 && blank_t2->next | |
| 1c8f6a4d KLC |
8554 | && (blank_t2->offset > raddr |
| 8555 | || blank_t2->next->offset <= raddr)) | |
| 4eca0228 | 8556 | _bfd_error_handler |
| 695344c0 | 8557 | (_("%B: Error: search_nds32_elf_blank reports wrong node\n"), abfd); |
| 35c08157 KLC |
8558 | |
| 8559 | /* Mark reloc in deleted portion as NONE. | |
| 8560 | For some relocs like R_NDS32_LABEL that doesn't modify the | |
| 8561 | content in the section. R_NDS32_LABEL doesn't belong to the | |
| 8562 | instruction in the section, so we should preserve it. */ | |
| 8563 | if (raddr >= blank_t2->offset | |
| 8564 | && raddr < blank_t2->offset + blank_t2->size | |
| 8565 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_LABEL | |
| 8566 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_BEGIN | |
| 8567 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_END | |
| 8568 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_ENTRY | |
| 8569 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_SUBTRAHEND | |
| 8570 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_MINUEND) | |
| 8571 | { | |
| 8572 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
| 8573 | R_NDS32_NONE); | |
| 8574 | continue; | |
| 8575 | } | |
| 8576 | } | |
| 8577 | ||
| 8578 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE | |
| 8579 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
| 8580 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY) | |
| 8581 | continue; | |
| 8582 | ||
| 8583 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info | |
| 8584 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx | |
| 8585 | && ELF_ST_TYPE (isym[ELF32_R_SYM (irel->r_info)].st_info) == STT_SECTION) | |
| 8586 | { | |
| 8587 | if (irel->r_addend <= sec->size) | |
| 8588 | irel->r_addend -= | |
| 8589 | get_nds32_elf_blank_total (&blank_t, irel->r_addend, 1); | |
| 8590 | } | |
| 8591 | } | |
| 8592 | } | |
| 8593 | ||
| 8594 | /* Adjust the local symbols defined in this section. */ | |
| 8595 | blank_t = blank_head; | |
| 8596 | for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++) | |
| 8597 | { | |
| 8598 | if (isym->st_shndx == sec_shndx) | |
| 8599 | { | |
| 8600 | if (isym->st_value <= sec->size) | |
| 8601 | { | |
| 8602 | bfd_vma ahead; | |
| 8603 | bfd_vma orig_addr = isym->st_value; | |
| 8604 | ||
| 8605 | ahead = get_nds32_elf_blank_total (&blank_t, isym->st_value, 1); | |
| 8606 | isym->st_value -= ahead; | |
| 8607 | ||
| 8608 | /* Adjust function size. */ | |
| 1c8f6a4d KLC |
8609 | if (ELF32_ST_TYPE (isym->st_info) == STT_FUNC |
| 8610 | && isym->st_size > 0) | |
| 8611 | isym->st_size -= | |
| 8612 | get_nds32_elf_blank_total | |
| 8613 | (&blank_t, orig_addr + isym->st_size, 0) - ahead; | |
| 35c08157 KLC |
8614 | } |
| 8615 | } | |
| 8616 | } | |
| 8617 | ||
| 8618 | /* Now adjust the global symbols defined in this section. */ | |
| 8619 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
| 8620 | - symtab_hdr->sh_info); | |
| 8621 | sym_hashes = elf_sym_hashes (abfd); | |
| 8622 | end_hashes = sym_hashes + symcount; | |
| 8623 | blank_t = blank_head; | |
| 8624 | for (; sym_hashes < end_hashes; sym_hashes++) | |
| 8625 | { | |
| 8626 | struct elf_link_hash_entry *sym_hash = *sym_hashes; | |
| 8627 | ||
| 8628 | if ((sym_hash->root.type == bfd_link_hash_defined | |
| 8629 | || sym_hash->root.type == bfd_link_hash_defweak) | |
| 8630 | && sym_hash->root.u.def.section == sec) | |
| 8631 | { | |
| 8632 | if (sym_hash->root.u.def.value <= sec->size) | |
| 8633 | { | |
| 8634 | bfd_vma ahead; | |
| 8635 | bfd_vma orig_addr = sym_hash->root.u.def.value; | |
| 8636 | ||
| 8637 | ahead = get_nds32_elf_blank_total (&blank_t, sym_hash->root.u.def.value, 1); | |
| 8638 | sym_hash->root.u.def.value -= ahead; | |
| 8639 | ||
| 8640 | /* Adjust function size. */ | |
| 8641 | if (sym_hash->type == STT_FUNC) | |
| 1c8f6a4d KLC |
8642 | sym_hash->size -= |
| 8643 | get_nds32_elf_blank_total | |
| 8644 | (&blank_t, orig_addr + sym_hash->size, 0) - ahead; | |
| 35c08157 KLC |
8645 | |
| 8646 | } | |
| 8647 | } | |
| 8648 | } | |
| 8649 | ||
| 8650 | contents = elf_section_data (sec)->this_hdr.contents; | |
| 8651 | blank_t = blank_head; | |
| 8652 | while (blank_t->next) | |
| 8653 | { | |
| 8654 | /* Actually delete the bytes. */ | |
| 8655 | ||
| 8656 | /* If current blank is the last blank overlap with current section, | |
| 8657 | go to finish process. */ | |
| 8658 | if (sec->size <= (blank_t->next->offset)) | |
| 8659 | break; | |
| 8660 | ||
| 8661 | memmove (contents + blank_t->offset - blank_t->total_size, | |
| 8662 | contents + blank_t->offset + blank_t->size, | |
| 8663 | blank_t->next->offset - (blank_t->offset + blank_t->size)); | |
| 8664 | ||
| 8665 | blank_t = blank_t->next; | |
| 8666 | } | |
| 8667 | ||
| 8668 | if (sec->size > (blank_t->offset + blank_t->size)) | |
| 8669 | { | |
| 8670 | /* There are remaining code between blank and section boundary. | |
| 8671 | Move the remaining code to appropriate location. */ | |
| 8672 | memmove (contents + blank_t->offset - blank_t->total_size, | |
| 8673 | contents + blank_t->offset + blank_t->size, | |
| 8674 | sec->size - (blank_t->offset + blank_t->size)); | |
| 8675 | sec->size -= blank_t->total_size + blank_t->size; | |
| 8676 | } | |
| 8677 | else | |
| 8678 | /* This blank is not entirely included in the section, | |
| 8679 | reduce the section size by only part of the blank size. */ | |
| 8680 | sec->size -= blank_t->total_size + (sec->size - blank_t->offset); | |
| 8681 | ||
| 8682 | while (blank_head) | |
| 8683 | { | |
| 8684 | blank_t = blank_head; | |
| 8685 | blank_head = blank_head->next; | |
| 8686 | remove_nds32_elf_blank (blank_t); | |
| 8687 | } | |
| 8688 | ||
| 8689 | return TRUE; | |
| 8690 | } | |
| 8691 | ||
| 8692 | /* Get the contents of a section. */ | |
| 8693 | ||
| 8694 | static int | |
| 0c4bd9d9 KLC |
8695 | nds32_get_section_contents (bfd *abfd, asection *sec, |
| 8696 | bfd_byte **contents_p, bfd_boolean cache) | |
| 35c08157 KLC |
8697 | { |
| 8698 | /* Get the section contents. */ | |
| 8699 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
| 8700 | *contents_p = elf_section_data (sec)->this_hdr.contents; | |
| 8701 | else | |
| 8702 | { | |
| 8703 | if (!bfd_malloc_and_get_section (abfd, sec, contents_p)) | |
| 8704 | return FALSE; | |
| 0c4bd9d9 KLC |
8705 | if (cache) |
| 8706 | elf_section_data (sec)->this_hdr.contents = *contents_p; | |
| 35c08157 KLC |
8707 | } |
| 8708 | ||
| 8709 | return TRUE; | |
| 8710 | } | |
| 8711 | ||
| 8712 | /* Get the contents of the internal symbol of abfd. */ | |
| 8713 | ||
| 8714 | static int | |
| 8715 | nds32_get_local_syms (bfd *abfd, asection *sec ATTRIBUTE_UNUSED, | |
| 8716 | Elf_Internal_Sym **isymbuf_p) | |
| 8717 | { | |
| 8718 | Elf_Internal_Shdr *symtab_hdr; | |
| 8719 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
| 8720 | ||
| 8721 | /* Read this BFD's local symbols if we haven't done so already. */ | |
| 8722 | if (*isymbuf_p == NULL && symtab_hdr->sh_info != 0) | |
| 8723 | { | |
| 8724 | *isymbuf_p = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 8725 | if (*isymbuf_p == NULL) | |
| 8726 | { | |
| 8727 | *isymbuf_p = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
| 8728 | symtab_hdr->sh_info, 0, | |
| 8729 | NULL, NULL, NULL); | |
| 8730 | if (*isymbuf_p == NULL) | |
| 8731 | return FALSE; | |
| 8732 | } | |
| 8733 | } | |
| 8734 | symtab_hdr->contents = (bfd_byte *) (*isymbuf_p); | |
| 8735 | ||
| 8736 | return TRUE; | |
| 8737 | } | |
| 8738 | ||
| 8739 | /* Range of small data. */ | |
| 1c8f6a4d KLC |
8740 | static bfd_vma sdata_range[2][2]; |
| 8741 | static bfd_vma const sdata_init_range[2] = | |
| 8742 | { ACCURATE_12BIT_S1, ACCURATE_19BIT }; | |
| 35c08157 KLC |
8743 | |
| 8744 | static int | |
| 8745 | nds32_elf_insn_size (bfd *abfd ATTRIBUTE_UNUSED, | |
| 8746 | bfd_byte *contents, bfd_vma addr) | |
| 8747 | { | |
| 8748 | unsigned long insn = bfd_getb32 (contents + addr); | |
| 8749 | ||
| 8750 | if (insn & 0x80000000) | |
| 8751 | return 2; | |
| 8752 | ||
| 8753 | return 4; | |
| 8754 | } | |
| 8755 | ||
| 8756 | /* Set the gp relax range. We have to measure the safe range | |
| 8757 | to do gp relaxation. */ | |
| 8758 | ||
| 8759 | static void | |
| 8760 | relax_range_measurement (bfd *abfd) | |
| 8761 | { | |
| 8762 | asection *sec_f, *sec_b; | |
| 8763 | /* For upper bound. */ | |
| 8764 | bfd_vma maxpgsz = get_elf_backend_data (abfd)->maxpagesize; | |
| 8765 | bfd_vma align; | |
| 35c08157 KLC |
8766 | static int decide_relax_range = 0; |
| 8767 | int i; | |
| 1c8f6a4d | 8768 | int range_number = sizeof (sdata_init_range) / sizeof (sdata_init_range[0]); |
| 35c08157 KLC |
8769 | |
| 8770 | if (decide_relax_range) | |
| 8771 | return; | |
| 8772 | decide_relax_range = 1; | |
| 8773 | ||
| 8774 | if (sda_rela_sec == NULL) | |
| 8775 | { | |
| 8776 | /* Since there is no data sections, we assume the range is page size. */ | |
| 1c8f6a4d | 8777 | for (i = 0; i < range_number; i++) |
| 35c08157 KLC |
8778 | { |
| 8779 | sdata_range[i][0] = sdata_init_range[i] - 0x1000; | |
| 8780 | sdata_range[i][1] = sdata_init_range[i] - 0x1000; | |
| 8781 | } | |
| 8782 | return; | |
| 8783 | } | |
| 8784 | ||
| 8785 | /* Get the biggest alignment power after the gp located section. */ | |
| 8786 | sec_f = sda_rela_sec->output_section; | |
| 8787 | sec_b = sec_f->next; | |
| 8788 | align = 0; | |
| 8789 | while (sec_b != NULL) | |
| 8790 | { | |
| 8791 | if ((unsigned)(1 << sec_b->alignment_power) > align) | |
| 8792 | align = (1 << sec_b->alignment_power); | |
| 8793 | sec_b = sec_b->next; | |
| 8794 | } | |
| 8795 | ||
| 8796 | /* I guess we can not determine the section before | |
| 8797 | gp located section, so we assume the align is max page size. */ | |
| 1c8f6a4d | 8798 | for (i = 0; i < range_number; i++) |
| 35c08157 | 8799 | { |
| 1c8f6a4d | 8800 | sdata_range[i][1] = sdata_init_range[i] - align; |
| 35c08157 | 8801 | BFD_ASSERT (sdata_range[i][1] <= sdata_init_range[i]); |
| 1c8f6a4d | 8802 | sdata_range[i][0] = sdata_init_range[i] - maxpgsz; |
| 35c08157 KLC |
8803 | BFD_ASSERT (sdata_range[i][0] <= sdata_init_range[i]); |
| 8804 | } | |
| 8805 | } | |
| 8806 | ||
| 8807 | /* These are macros used to check flags encoded in r_addend. | |
| 8808 | They are only used by nds32_elf_relax_section (). */ | |
| 8809 | #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff) | |
| 8810 | #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000) | |
| 8811 | #define IS_OPTIMIZE(addend) ((addend) & 0x40000000) | |
| 8812 | #define IS_16BIT_ON(addend) ((addend) & 0x20000000) | |
| 8813 | ||
| 695344c0 NC |
8814 | static const char * unrecognized_reloc_msg = |
| 8815 | /* xgettext:c-format */ | |
| d42c267e | 8816 | N_("%B: warning: %s points to unrecognized reloc at %#Lx"); |
| 695344c0 | 8817 | |
| 1c8f6a4d KLC |
8818 | /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */ |
| 8819 | ||
| 35c08157 | 8820 | static bfd_boolean |
| 1c8f6a4d KLC |
8821 | nds32_elf_relax_longcall1 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
| 8822 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 8823 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 8824 | Elf_Internal_Shdr *symtab_hdr) | |
| 8825 | { | |
| 8826 | /* There are 3 variations for LONGCALL1 | |
| 8827 | case 4-4-2; 16-bit on, optimize off or optimize for space | |
| 8828 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 | |
| 8829 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 8830 | jral5 ta ; | |
| 8831 | ||
| 8832 | case 4-4-4; 16-bit off, optimize don't care | |
| 8833 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 | |
| 8834 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 8835 | jral ta ; | |
| 8836 | ||
| 8837 | case 4-4-4; 16-bit on, optimize for speed | |
| 8838 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 | |
| 8839 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 8840 | jral ta ; | |
| 8841 | Check code for -mlong-calls output. */ | |
| 8842 | ||
| 8843 | /* Get the reloc for the address from which the register is | |
| 8844 | being loaded. This reloc will tell us which function is | |
| 8845 | actually being called. */ | |
| 8846 | ||
| 8847 | bfd_vma laddr; | |
| 8848 | int seq_len; /* Original length of instruction sequence. */ | |
| 35c08157 | 8849 | uint32_t insn; |
| 1c8f6a4d KLC |
8850 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *irelend; |
| 8851 | int pic_ext_target = 0; | |
| 8852 | bfd_signed_vma foff; | |
| 35c08157 | 8853 | uint16_t insn16; |
| 35c08157 | 8854 | |
| 1c8f6a4d KLC |
8855 | irelend = internal_relocs + sec->reloc_count; |
| 8856 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
| 8857 | laddr = irel->r_offset; | |
| 8858 | *insn_len = seq_len; | |
| 35c08157 | 8859 | |
| 1c8f6a4d KLC |
8860 | hi_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
| 8861 | R_NDS32_HI20_RELA, laddr); | |
| 8862 | lo_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 8863 | R_NDS32_LO12S0_ORI_RELA, | |
| 8864 | laddr + 4); | |
| 35c08157 | 8865 | |
| 1c8f6a4d | 8866 | if (hi_irelfn == irelend || lo_irelfn == irelend) |
| 35c08157 | 8867 | { |
| 695344c0 | 8868 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL1", |
| d42c267e | 8869 | irel->r_offset); |
| 1c8f6a4d | 8870 | return FALSE; |
| 35c08157 KLC |
8871 | } |
| 8872 | ||
| 1c8f6a4d KLC |
8873 | /* Get the value of the symbol referred to by the reloc. */ |
| 8874 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr, | |
| 8875 | &pic_ext_target); | |
| 35c08157 | 8876 | |
| 1c8f6a4d KLC |
8877 | /* This condition only happened when symbol is undefined. */ |
| 8878 | if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1 | |
| 8879 | || foff >= CONSERVATIVE_24BIT_S1) | |
| 8880 | return FALSE; | |
| 35c08157 | 8881 | |
| 1c8f6a4d KLC |
8882 | /* Relax to: jal symbol; 25_PCREL */ |
| 8883 | /* For simplicity of coding, we are going to modify the section | |
| 8884 | contents, the section relocs, and the BFD symbol table. We | |
| 8885 | must tell the rest of the code not to free up this | |
| 8886 | information. It would be possible to instead create a table | |
| 8887 | of changes which have to be made, as is done in coff-mips.c; | |
| 8888 | that would be more work, but would require less memory when | |
| 8889 | the linker is run. */ | |
| 8890 | ||
| 8891 | /* Replace the long call with a jal. */ | |
| 8892 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
| 8893 | R_NDS32_25_PCREL_RELA); | |
| 8894 | irel->r_addend = hi_irelfn->r_addend; | |
| 8895 | ||
| 8896 | /* We don't resolve this here but resolve it in relocate_section. */ | |
| 8897 | insn = INSN_JAL; | |
| 8898 | bfd_putb32 (insn, contents + irel->r_offset); | |
| 8899 | ||
| 8900 | hi_irelfn->r_info = | |
| 8901 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
| 8902 | lo_irelfn->r_info = | |
| 8903 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
| 8904 | *insn_len = 4; | |
| 8905 | ||
| 8906 | if (seq_len & 0x2) | |
| 8907 | { | |
| 8908 | insn16 = NDS32_NOP16; | |
| 8909 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
| 8910 | lo_irelfn->r_info = | |
| 8911 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_INSN16); | |
| 8912 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
| 8913 | *insn_len += 2; | |
| 8914 | } | |
| 8915 | return TRUE; | |
| 8916 | } | |
| 35c08157 | 8917 | |
| 1c8f6a4d KLC |
8918 | #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000) |
| 8919 | /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */ | |
| 35c08157 | 8920 | |
| 1c8f6a4d KLC |
8921 | static bfd_boolean |
| 8922 | nds32_elf_relax_longcall2 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 8923 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 8924 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 8925 | Elf_Internal_Shdr *symtab_hdr) | |
| 8926 | { | |
| 8927 | /* bltz rt, .L1 ; LONGCALL2 | |
| 8928 | jal symbol ; 25_PCREL | |
| 8929 | .L1: */ | |
| 35c08157 | 8930 | |
| 1c8f6a4d KLC |
8931 | /* Get the reloc for the address from which the register is |
| 8932 | being loaded. This reloc will tell us which function is | |
| 8933 | actually being called. */ | |
| 35c08157 | 8934 | |
| 1c8f6a4d KLC |
8935 | bfd_vma laddr; |
| 8936 | uint32_t insn; | |
| 8937 | Elf_Internal_Rela *i1_irelfn, *cond_irelfn, *irelend; | |
| 8938 | int pic_ext_target = 0; | |
| 8939 | bfd_signed_vma foff; | |
| 35c08157 | 8940 | |
| 1c8f6a4d KLC |
8941 | irelend = internal_relocs + sec->reloc_count; |
| 8942 | laddr = irel->r_offset; | |
| 8943 | i1_irelfn = | |
| 8944 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 8945 | R_NDS32_25_PCREL_RELA, laddr + 4); | |
| 8946 | ||
| 8947 | if (i1_irelfn == irelend) | |
| 35c08157 | 8948 | { |
| 695344c0 | 8949 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL2", |
| d42c267e | 8950 | irel->r_offset); |
| 1c8f6a4d | 8951 | return FALSE; |
| 35c08157 KLC |
8952 | } |
| 8953 | ||
| 1c8f6a4d | 8954 | insn = bfd_getb32 (contents + laddr); |
| 35c08157 | 8955 | |
| 1c8f6a4d KLC |
8956 | /* Get the value of the symbol referred to by the reloc. */ |
| 8957 | foff = calculate_offset (abfd, sec, i1_irelfn, isymbuf, symtab_hdr, | |
| 8958 | &pic_ext_target); | |
| 35c08157 | 8959 | |
| 1c8f6a4d KLC |
8960 | if (foff == 0 || foff < -CONSERVATIVE_16BIT_S1 |
| 8961 | || foff >= CONSERVATIVE_16BIT_S1) | |
| 8962 | return FALSE; | |
| 35c08157 | 8963 | |
| 1c8f6a4d KLC |
8964 | /* Relax to bgezal rt, label ; 17_PCREL |
| 8965 | or bltzal rt, label ; 17_PCREL */ | |
| 8966 | ||
| 8967 | /* Convert to complimentary conditional call. */ | |
| 8968 | insn = CONVERT_CONDITION_CALL (insn); | |
| 8969 | ||
| 8970 | /* For simplicity of coding, we are going to modify the section | |
| 8971 | contents, the section relocs, and the BFD symbol table. We | |
| 8972 | must tell the rest of the code not to free up this | |
| 8973 | information. It would be possible to instead create a table | |
| 8974 | of changes which have to be made, as is done in coff-mips.c; | |
| 8975 | that would be more work, but would require less memory when | |
| 8976 | the linker is run. */ | |
| 8977 | ||
| 8978 | /* Clean unnessary relocations. */ | |
| 8979 | i1_irelfn->r_info = | |
| 8980 | ELF32_R_INFO (ELF32_R_SYM (i1_irelfn->r_info), R_NDS32_NONE); | |
| 8981 | cond_irelfn = | |
| 8982 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 8983 | R_NDS32_17_PCREL_RELA, laddr); | |
| 8984 | if (cond_irelfn != irelend) | |
| 8985 | cond_irelfn->r_info = | |
| 8986 | ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), R_NDS32_NONE); | |
| 8987 | ||
| 8988 | /* Replace the long call with a bgezal. */ | |
| 8989 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (i1_irelfn->r_info), | |
| 8990 | R_NDS32_17_PCREL_RELA); | |
| 8991 | irel->r_addend = i1_irelfn->r_addend; | |
| 8992 | ||
| 8993 | bfd_putb32 (insn, contents + irel->r_offset); | |
| 8994 | ||
| 8995 | *insn_len = 4; | |
| 8996 | return TRUE; | |
| 8997 | } | |
| 35c08157 | 8998 | |
| 1c8f6a4d KLC |
8999 | /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */ |
| 9000 | ||
| 9001 | static bfd_boolean | |
| 9002 | nds32_elf_relax_longcall3 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 9003 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 9004 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 9005 | Elf_Internal_Shdr *symtab_hdr) | |
| 9006 | { | |
| 9007 | /* There are 3 variations for LONGCALL3 | |
| 9008 | case 4-4-4-2; 16-bit on, optimize off or optimize for space | |
| 9009 | bltz rt, $1 ; LONGCALL3 | |
| 9010 | sethi ta, hi20(symbol) ; HI20 | |
| 9011 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 9012 | jral5 ta ; | |
| 9013 | $1 | |
| 9014 | ||
| 9015 | case 4-4-4-4; 16-bit off, optimize don't care | |
| 9016 | bltz rt, $1 ; LONGCALL3 | |
| 9017 | sethi ta, hi20(symbol) ; HI20 | |
| 9018 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 9019 | jral ta ; | |
| 9020 | $1 | |
| 9021 | ||
| 9022 | case 4-4-4-4; 16-bit on, optimize for speed | |
| 9023 | bltz rt, $1 ; LONGCALL3 | |
| 9024 | sethi ta, hi20(symbol) ; HI20 | |
| 9025 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 9026 | jral ta ; | |
| 9027 | $1 */ | |
| 9028 | ||
| 9029 | /* Get the reloc for the address from which the register is | |
| 9030 | being loaded. This reloc will tell us which function is | |
| 9031 | actually being called. */ | |
| 9032 | ||
| 9033 | bfd_vma laddr; | |
| 9034 | int seq_len; /* Original length of instruction sequence. */ | |
| 9035 | uint32_t insn; | |
| 9036 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *cond_irelfn, *irelend; | |
| 9037 | int pic_ext_target = 0; | |
| 9038 | bfd_signed_vma foff; | |
| 9039 | uint16_t insn16; | |
| 9040 | ||
| 9041 | irelend = internal_relocs + sec->reloc_count; | |
| 9042 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
| 9043 | laddr = irel->r_offset; | |
| 9044 | *insn_len = seq_len; | |
| 9045 | ||
| 9046 | hi_irelfn = | |
| 9047 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9048 | R_NDS32_HI20_RELA, laddr + 4); | |
| 9049 | lo_irelfn = | |
| 9050 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9051 | R_NDS32_LO12S0_ORI_RELA, laddr + 8); | |
| 9052 | ||
| 9053 | if (hi_irelfn == irelend || lo_irelfn == irelend) | |
| 9054 | { | |
| 695344c0 | 9055 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL3", |
| d42c267e | 9056 | irel->r_offset); |
| 1c8f6a4d | 9057 | return FALSE; |
| 35c08157 KLC |
9058 | } |
| 9059 | ||
| 1c8f6a4d KLC |
9060 | /* Get the value of the symbol referred to by the reloc. */ |
| 9061 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr, | |
| 9062 | &pic_ext_target); | |
| 35c08157 | 9063 | |
| 1c8f6a4d KLC |
9064 | if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1 |
| 9065 | || foff >= CONSERVATIVE_24BIT_S1) | |
| 9066 | return FALSE; | |
| 35c08157 | 9067 | |
| 1c8f6a4d KLC |
9068 | insn = bfd_getb32 (contents + laddr); |
| 9069 | if (foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
| 35c08157 | 9070 | { |
| 1c8f6a4d KLC |
9071 | /* Relax to bgezal rt, label ; 17_PCREL |
| 9072 | or bltzal rt, label ; 17_PCREL */ | |
| 35c08157 | 9073 | |
| 1c8f6a4d KLC |
9074 | /* Convert to complimentary conditional call. */ |
| 9075 | insn = CONVERT_CONDITION_CALL (insn); | |
| 9076 | bfd_putb32 (insn, contents + irel->r_offset); | |
| 35c08157 | 9077 | |
| 1c8f6a4d KLC |
9078 | *insn_len = 4; |
| 9079 | irel->r_info = | |
| 9080 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
| 9081 | hi_irelfn->r_info = | |
| 9082 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
| 9083 | lo_irelfn->r_info = | |
| 9084 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
| 9085 | ||
| 9086 | cond_irelfn = | |
| 9087 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9088 | R_NDS32_17_PCREL_RELA, laddr); | |
| 9089 | if (cond_irelfn != irelend) | |
| 35c08157 | 9090 | { |
| 1c8f6a4d KLC |
9091 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), |
| 9092 | R_NDS32_17_PCREL_RELA); | |
| 9093 | cond_irelfn->r_addend = hi_irelfn->r_addend; | |
| 35c08157 | 9094 | } |
| 1c8f6a4d KLC |
9095 | |
| 9096 | if (seq_len & 0x2) | |
| 35c08157 | 9097 | { |
| 1c8f6a4d KLC |
9098 | insn16 = NDS32_NOP16; |
| 9099 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
| 9100 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
| 9101 | R_NDS32_INSN16); | |
| 9102 | hi_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
| 9103 | insn_len += 2; | |
| 35c08157 | 9104 | } |
| 1c8f6a4d KLC |
9105 | } |
| 9106 | else if (foff >= -CONSERVATIVE_24BIT_S1 && foff < CONSERVATIVE_24BIT_S1) | |
| 9107 | { | |
| 9108 | /* Relax to the following instruction sequence | |
| 9109 | bltz rt, $1 ; LONGCALL2 | |
| 9110 | jal symbol ; 25_PCREL | |
| 9111 | $1 */ | |
| 9112 | *insn_len = 8; | |
| 9113 | insn = INSN_JAL; | |
| 9114 | bfd_putb32 (insn, contents + hi_irelfn->r_offset); | |
| 35c08157 | 9115 | |
| 1c8f6a4d KLC |
9116 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), |
| 9117 | R_NDS32_25_PCREL_RELA); | |
| 9118 | irel->r_info = | |
| 9119 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_LONGCALL2); | |
| 9120 | ||
| 9121 | lo_irelfn->r_info = | |
| 9122 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
| 35c08157 | 9123 | |
| 1c8f6a4d | 9124 | if (seq_len & 0x2) |
| 35c08157 | 9125 | { |
| 1c8f6a4d KLC |
9126 | insn16 = NDS32_NOP16; |
| 9127 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
| 9128 | lo_irelfn->r_info = | |
| 9129 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_INSN16); | |
| 9130 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
| 9131 | insn_len += 2; | |
| 9132 | } | |
| 9133 | } | |
| 9134 | return TRUE; | |
| 9135 | } | |
| 35c08157 | 9136 | |
| 1c8f6a4d | 9137 | /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */ |
| 35c08157 | 9138 | |
| 1c8f6a4d KLC |
9139 | static bfd_boolean |
| 9140 | nds32_elf_relax_longjump1 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 9141 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 9142 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 9143 | Elf_Internal_Shdr *symtab_hdr) | |
| 9144 | { | |
| 9145 | /* There are 3 variations for LONGJUMP1 | |
| 9146 | case 4-4-2; 16-bit bit on, optimize off or optimize for space | |
| 9147 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 | |
| 9148 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 9149 | jr5 ta ; | |
| 9150 | ||
| 9151 | case 4-4-4; 16-bit off, optimize don't care | |
| 9152 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 | |
| 9153 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 9154 | jr ta ; | |
| 9155 | ||
| 9156 | case 4-4-4; 16-bit on, optimize for speed | |
| 9157 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 | |
| 9158 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 9159 | jr ta ; */ | |
| 9160 | ||
| 9161 | /* Get the reloc for the address from which the register is | |
| 9162 | being loaded. This reloc will tell us which function is | |
| 9163 | actually being called. */ | |
| 9164 | ||
| 9165 | bfd_vma laddr; | |
| 9166 | int seq_len; /* Original length of instruction sequence. */ | |
| 9167 | int insn16_on; /* 16-bit on/off. */ | |
| 9168 | uint32_t insn; | |
| 9169 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *irelend; | |
| 9170 | int pic_ext_target = 0; | |
| 9171 | bfd_signed_vma foff; | |
| 9172 | uint16_t insn16; | |
| 9173 | unsigned long reloc; | |
| 35c08157 | 9174 | |
| 1c8f6a4d KLC |
9175 | irelend = internal_relocs + sec->reloc_count; |
| 9176 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
| 9177 | laddr = irel->r_offset; | |
| 9178 | *insn_len = seq_len; | |
| 9179 | insn16_on = IS_16BIT_ON (irel->r_addend); | |
| 9180 | ||
| 9181 | hi_irelfn = | |
| 9182 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9183 | R_NDS32_HI20_RELA, laddr); | |
| 9184 | lo_irelfn = | |
| 9185 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9186 | R_NDS32_LO12S0_ORI_RELA, laddr + 4); | |
| 9187 | if (hi_irelfn == irelend || lo_irelfn == irelend) | |
| 9188 | { | |
| 695344c0 | 9189 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP1", |
| d42c267e | 9190 | irel->r_offset); |
| 1c8f6a4d KLC |
9191 | return FALSE; |
| 9192 | } | |
| 35c08157 | 9193 | |
| 1c8f6a4d KLC |
9194 | /* Get the value of the symbol referred to by the reloc. */ |
| 9195 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr, | |
| 9196 | &pic_ext_target); | |
| 35c08157 | 9197 | |
| 1c8f6a4d KLC |
9198 | if (pic_ext_target || foff == 0 || foff >= CONSERVATIVE_24BIT_S1 |
| 9199 | || foff < -CONSERVATIVE_24BIT_S1) | |
| 9200 | return FALSE; | |
| 35c08157 | 9201 | |
| 1c8f6a4d KLC |
9202 | if (insn16_on && foff >= -ACCURATE_8BIT_S1 |
| 9203 | && foff < ACCURATE_8BIT_S1 && (seq_len & 0x2)) | |
| 9204 | { | |
| 9205 | /* j8 label */ | |
| 9206 | /* 16-bit on, but not optimized for speed. */ | |
| 9207 | reloc = R_NDS32_9_PCREL_RELA; | |
| 9208 | insn16 = INSN_J8; | |
| 9209 | bfd_putb16 (insn16, contents + irel->r_offset); | |
| 9210 | *insn_len = 2; | |
| 9211 | irel->r_info = | |
| 9212 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 9213 | } | |
| 9214 | else | |
| 9215 | { | |
| 9216 | /* j label */ | |
| 9217 | reloc = R_NDS32_25_PCREL_RELA; | |
| 9218 | insn = INSN_J; | |
| 9219 | bfd_putb32 (insn, contents + irel->r_offset); | |
| 9220 | *insn_len = 4; | |
| 9221 | irel->r_info = | |
| 9222 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_INSN16); | |
| 9223 | irel->r_addend = 0; | |
| 9224 | } | |
| 35c08157 | 9225 | |
| 1c8f6a4d KLC |
9226 | hi_irelfn->r_info = |
| 9227 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), reloc); | |
| 9228 | lo_irelfn->r_info = | |
| 9229 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
| 35c08157 | 9230 | |
| 1c8f6a4d KLC |
9231 | if ((seq_len & 0x2) && ((*insn_len & 2) == 0)) |
| 9232 | { | |
| 9233 | insn16 = NDS32_NOP16; | |
| 9234 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
| 9235 | lo_irelfn->r_info = | |
| 9236 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
| 9237 | R_NDS32_INSN16); | |
| 9238 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
| 9239 | *insn_len += 2; | |
| 9240 | } | |
| 9241 | return TRUE; | |
| 9242 | } | |
| 9243 | ||
| 9244 | /* Revert condition branch. This function does not check if the input | |
| 9245 | instruction is condition branch or not. */ | |
| 9246 | ||
| 9247 | static void | |
| 9248 | nds32_elf_convert_branch (uint16_t insn16, uint32_t insn, | |
| 9249 | uint16_t *re_insn16, uint32_t *re_insn) | |
| 9250 | { | |
| 9251 | uint32_t comp_insn = 0; | |
| 9252 | uint16_t comp_insn16 = 0; | |
| 9253 | ||
| 9254 | if (insn) | |
| 9255 | { | |
| 9256 | if (N32_OP6 (insn) == N32_OP6_BR1) | |
| 9257 | { | |
| 9258 | /* beqs label. */ | |
| 9259 | comp_insn = (insn ^ 0x4000) & 0xffffc000; | |
| 9260 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5) | |
| 35c08157 | 9261 | { |
| 1c8f6a4d KLC |
9262 | /* Insn can be contracted to 16-bit implied r5. */ |
| 9263 | comp_insn16 = | |
| 9264 | (comp_insn & 0x4000) ? INSN_BNES38 : INSN_BEQS38; | |
| 9265 | comp_insn16 |= (N32_RT5 (insn) & 0x7) << 8; | |
| 35c08157 | 9266 | } |
| 1c8f6a4d KLC |
9267 | } |
| 9268 | else if (N32_OP6 (insn) == N32_OP6_BR3) | |
| 9269 | { | |
| 9270 | /* bnec $ta, imm11, label. */ | |
| 9271 | comp_insn = (insn ^ 0x80000) & 0xffffff00; | |
| 9272 | } | |
| 9273 | else | |
| 9274 | { | |
| 9275 | comp_insn = (insn ^ 0x10000) & 0xffffc000; | |
| 9276 | if (N32_BR2_SUB (insn) == N32_BR2_BEQZ | |
| 9277 | || N32_BR2_SUB (insn) == N32_BR2_BNEZ) | |
| 35c08157 | 9278 | { |
| 1c8f6a4d | 9279 | if (N32_IS_RT3 (insn)) |
| 35c08157 | 9280 | { |
| 1c8f6a4d KLC |
9281 | /* Insn can be contracted to 16-bit. */ |
| 9282 | comp_insn16 = | |
| 9283 | (comp_insn & 0x10000) ? INSN_BNEZ38 : INSN_BEQZ38; | |
| 9284 | comp_insn16 |= (N32_RT5 (insn) & 0x7) << 8; | |
| 9285 | } | |
| 9286 | else if (N32_RT5 (insn) == REG_R15) | |
| 9287 | { | |
| 9288 | /* Insn can be contracted to 16-bit. */ | |
| 9289 | comp_insn16 = | |
| 9290 | (comp_insn & 0x10000) ? INSN_BNES38 : INSN_BEQS38; | |
| 35c08157 | 9291 | } |
| 35c08157 KLC |
9292 | } |
| 9293 | } | |
| 1c8f6a4d KLC |
9294 | } |
| 9295 | else | |
| 9296 | { | |
| 9297 | switch ((insn16 & 0xf000) >> 12) | |
| 35c08157 | 9298 | { |
| 1c8f6a4d KLC |
9299 | case 0xc: |
| 9300 | /* beqz38 or bnez38 */ | |
| 9301 | comp_insn16 = (insn16 ^ 0x0800) & 0xff00; | |
| 9302 | comp_insn = (comp_insn16 & 0x0800) ? INSN_BNEZ : INSN_BEQZ; | |
| 9303 | comp_insn |= ((comp_insn16 & 0x0700) >> 8) << 20; | |
| 9304 | break; | |
| 35c08157 | 9305 | |
| 1c8f6a4d KLC |
9306 | case 0xd: |
| 9307 | /* beqs38 or bnes38 */ | |
| 9308 | comp_insn16 = (insn16 ^ 0x0800) & 0xff00; | |
| 9309 | comp_insn = (comp_insn16 & 0x0800) ? INSN_BNE : INSN_BEQ; | |
| 9310 | comp_insn |= (((comp_insn16 & 0x0700) >> 8) << 20) | |
| 9311 | | (REG_R5 << 15); | |
| 9312 | break; | |
| 35c08157 | 9313 | |
| 1c8f6a4d KLC |
9314 | case 0xe: |
| 9315 | /* beqzS8 or bnezS8 */ | |
| 9316 | comp_insn16 = (insn16 ^ 0x0100) & 0xff00; | |
| 9317 | comp_insn = (comp_insn16 & 0x0100) ? INSN_BNEZ : INSN_BEQZ; | |
| 9318 | comp_insn |= REG_R15 << 20; | |
| 9319 | break; | |
| 35c08157 | 9320 | |
| 1c8f6a4d KLC |
9321 | default: |
| 9322 | break; | |
| 9323 | } | |
| 9324 | } | |
| 9325 | if (comp_insn && re_insn) | |
| 9326 | *re_insn = comp_insn; | |
| 9327 | if (comp_insn16 && re_insn16) | |
| 9328 | *re_insn16 = comp_insn16; | |
| 9329 | } | |
| 35c08157 | 9330 | |
| 1c8f6a4d | 9331 | /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */ |
| 35c08157 | 9332 | |
| 1c8f6a4d KLC |
9333 | static bfd_boolean |
| 9334 | nds32_elf_relax_longjump2 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 9335 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 9336 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 9337 | Elf_Internal_Shdr *symtab_hdr) | |
| 9338 | { | |
| 9339 | /* There are 3 variations for LONGJUMP2 | |
| 9340 | case 2-4; 1st insn convertible, 16-bit on, | |
| 9341 | optimize off or optimize for space | |
| 9342 | bnes38 rt, ra, $1 ; LONGJUMP2 | |
| 9343 | j label ; 25_PCREL | |
| 9344 | $1: | |
| 9345 | ||
| 9346 | case 4-4; 1st insn not convertible | |
| 9347 | bne rt, ra, $1 ; LONGJUMP2 | |
| 9348 | j label ; 25_PCREL | |
| 9349 | $1: | |
| 9350 | ||
| 9351 | case 4-4; 1st insn convertible, 16-bit on, optimize for speed | |
| 9352 | bne rt, ra, $1 ; LONGJUMP2 | |
| 9353 | j label ; 25_PCREL | |
| 9354 | $1: */ | |
| 9355 | ||
| 9356 | /* Get the reloc for the address from which the register is | |
| 9357 | being loaded. This reloc will tell us which function is | |
| 9358 | actually being called. */ | |
| 9359 | ||
| 9360 | bfd_vma laddr; | |
| 9361 | int seq_len; /* Original length of instruction sequence. */ | |
| 9362 | Elf_Internal_Rela *i2_irelfn, *cond_irelfn, *irelend; | |
| 9363 | int pic_ext_target = 0, first_size; | |
| 9364 | unsigned int i; | |
| 9365 | bfd_signed_vma foff; | |
| 9366 | uint32_t insn, re_insn = 0; | |
| 9367 | uint16_t insn16, re_insn16 = 0; | |
| 9368 | unsigned long reloc, cond_reloc; | |
| 35c08157 | 9369 | |
| 1c8f6a4d KLC |
9370 | enum elf_nds32_reloc_type checked_types[] = |
| 9371 | { R_NDS32_15_PCREL_RELA, R_NDS32_9_PCREL_RELA }; | |
| 35c08157 | 9372 | |
| 1c8f6a4d KLC |
9373 | irelend = internal_relocs + sec->reloc_count; |
| 9374 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
| 9375 | laddr = irel->r_offset; | |
| 9376 | *insn_len = seq_len; | |
| 9377 | first_size = (seq_len == 6) ? 2 : 4; | |
| 9378 | ||
| 9379 | i2_irelfn = | |
| 9380 | find_relocs_at_address_addr (irel, internal_relocs, | |
| 9381 | irelend, R_NDS32_25_PCREL_RELA, | |
| 9382 | laddr + first_size); | |
| 9383 | ||
| 9384 | for (i = 0; i < sizeof (checked_types) / sizeof(checked_types[0]); i++) | |
| 9385 | { | |
| 9386 | cond_irelfn = | |
| 9387 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9388 | checked_types[i], laddr); | |
| 9389 | if (cond_irelfn != irelend) | |
| 9390 | break; | |
| 9391 | } | |
| 35c08157 | 9392 | |
| 1c8f6a4d KLC |
9393 | if (i2_irelfn == irelend || cond_irelfn == irelend) |
| 9394 | { | |
| 695344c0 | 9395 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP2", |
| d42c267e | 9396 | irel->r_offset); |
| 1c8f6a4d KLC |
9397 | return FALSE; |
| 9398 | } | |
| 35c08157 | 9399 | |
| 1c8f6a4d KLC |
9400 | /* Get the value of the symbol referred to by the reloc. */ |
| 9401 | foff = | |
| 9402 | calculate_offset (abfd, sec, i2_irelfn, isymbuf, symtab_hdr, | |
| 9403 | &pic_ext_target); | |
| 9404 | if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_16BIT_S1 | |
| 9405 | || foff >= CONSERVATIVE_16BIT_S1) | |
| 9406 | return FALSE; | |
| 35c08157 | 9407 | |
| 1c8f6a4d KLC |
9408 | /* Get the all corresponding instructions. */ |
| 9409 | if (first_size == 4) | |
| 9410 | { | |
| 9411 | insn = bfd_getb32 (contents + laddr); | |
| 9412 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
| 9413 | } | |
| 9414 | else | |
| 9415 | { | |
| 9416 | insn16 = bfd_getb16 (contents + laddr); | |
| 9417 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
| 9418 | } | |
| 35c08157 | 9419 | |
| 1c8f6a4d KLC |
9420 | if (re_insn16 && foff >= -(ACCURATE_8BIT_S1 - first_size) |
| 9421 | && foff < ACCURATE_8BIT_S1 - first_size) | |
| 9422 | { | |
| 9423 | if (first_size == 4) | |
| 9424 | { | |
| 9425 | /* Don't convert it to 16-bit now, keep this as relaxable for | |
| 9426 | ``label reloc; INSN16''. */ | |
| 35c08157 | 9427 | |
| 1c8f6a4d KLC |
9428 | /* Save comp_insn32 to buffer. */ |
| 9429 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
| 9430 | *insn_len = 4; | |
| 9431 | reloc = (N32_OP6 (re_insn) == N32_OP6_BR1) ? | |
| 9432 | R_NDS32_15_PCREL_RELA : R_NDS32_17_PCREL_RELA; | |
| 9433 | cond_reloc = R_NDS32_INSN16; | |
| 9434 | } | |
| 9435 | else | |
| 9436 | { | |
| 9437 | bfd_putb16 (re_insn16, contents + irel->r_offset); | |
| 9438 | *insn_len = 2; | |
| 9439 | reloc = R_NDS32_9_PCREL_RELA; | |
| 9440 | cond_reloc = R_NDS32_NONE; | |
| 9441 | } | |
| 9442 | } | |
| 9443 | else if (N32_OP6 (re_insn) == N32_OP6_BR1 | |
| 9444 | && (foff >= -(ACCURATE_14BIT_S1 - first_size) | |
| 9445 | && foff < ACCURATE_14BIT_S1 - first_size)) | |
| 9446 | { | |
| 9447 | /* beqs label ; 15_PCREL */ | |
| 9448 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
| 9449 | *insn_len = 4; | |
| 9450 | reloc = R_NDS32_15_PCREL_RELA; | |
| 9451 | cond_reloc = R_NDS32_NONE; | |
| 9452 | } | |
| 9453 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
| 9454 | && foff >= -CONSERVATIVE_16BIT_S1 | |
| 9455 | && foff < CONSERVATIVE_16BIT_S1) | |
| 9456 | { | |
| 9457 | /* beqz label ; 17_PCREL */ | |
| 9458 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
| 9459 | *insn_len = 4; | |
| 9460 | reloc = R_NDS32_17_PCREL_RELA; | |
| 9461 | cond_reloc = R_NDS32_NONE; | |
| 9462 | } | |
| 9463 | else | |
| 9464 | return FALSE; | |
| 35c08157 | 9465 | |
| 1c8f6a4d KLC |
9466 | /* Set all relocations. */ |
| 9467 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), reloc); | |
| 9468 | irel->r_addend = i2_irelfn->r_addend; | |
| 35c08157 | 9469 | |
| 1c8f6a4d KLC |
9470 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), |
| 9471 | cond_reloc); | |
| 9472 | cond_irelfn->r_addend = 0; | |
| 35c08157 | 9473 | |
| 1c8f6a4d KLC |
9474 | if ((seq_len ^ *insn_len ) & 0x2) |
| 9475 | { | |
| 9476 | insn16 = NDS32_NOP16; | |
| 9477 | bfd_putb16 (insn16, contents + irel->r_offset + 4); | |
| 9478 | i2_irelfn->r_offset = 4; | |
| 9479 | i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), | |
| 9480 | R_NDS32_INSN16); | |
| 9481 | i2_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
| 9482 | *insn_len += 2; | |
| 9483 | } | |
| 9484 | else | |
| 9485 | i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), | |
| 9486 | R_NDS32_NONE); | |
| 9487 | return TRUE; | |
| 9488 | } | |
| 35c08157 | 9489 | |
| 1c8f6a4d | 9490 | /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */ |
| 35c08157 | 9491 | |
| 1c8f6a4d KLC |
9492 | static bfd_boolean |
| 9493 | nds32_elf_relax_longjump3 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 9494 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 9495 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 9496 | Elf_Internal_Shdr *symtab_hdr) | |
| 9497 | { | |
| 9498 | /* There are 5 variations for LONGJUMP3 | |
| 9499 | case 1: 2-4-4-2; 1st insn convertible, 16-bit on, | |
| 9500 | optimize off or optimize for space | |
| 9501 | bnes38 rt, ra, $1 ; LONGJUMP3 | |
| 9502 | sethi ta, hi20(symbol) ; HI20 | |
| 9503 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 9504 | jr5 ta ; | |
| 9505 | $1: ; | |
| 9506 | ||
| 9507 | case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed | |
| 9508 | bnes38 rt, ra, $1 ; LONGJUMP3 | |
| 9509 | sethi ta, hi20(symbol) ; HI20 | |
| 9510 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 9511 | jr5 ta ; | |
| 9512 | $1: ; LABEL | |
| 9513 | ||
| 9514 | case 3: 4-4-4-2; 1st insn not convertible, 16-bit on, | |
| 9515 | optimize off or optimize for space | |
| 9516 | bne rt, ra, $1 ; LONGJUMP3 | |
| 9517 | sethi ta, hi20(symbol) ; HI20 | |
| 9518 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 9519 | jr5 ta ; | |
| 9520 | $1: ; | |
| 9521 | ||
| 9522 | case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care | |
| 9523 | 16-bit off if no INSN16 | |
| 9524 | bne rt, ra, $1 ; LONGJUMP3 | |
| 9525 | sethi ta, hi20(symbol) ; HI20 | |
| 9526 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 9527 | jr ta ; | |
| 9528 | $1: ; | |
| 9529 | ||
| 9530 | case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed | |
| 9531 | 16-bit off if no INSN16 | |
| 9532 | bne rt, ra, $1 ; LONGJUMP3 | |
| 9533 | sethi ta, hi20(symbol) ; HI20 | |
| 9534 | ori ta, ta, lo12(symbol) ; LO12S0 | |
| 9535 | jr ta ; | |
| 9536 | $1: ; LABEL */ | |
| 9537 | ||
| 9538 | /* Get the reloc for the address from which the register is | |
| 9539 | being loaded. This reloc will tell us which function is | |
| 9540 | actually being called. */ | |
| 9541 | enum elf_nds32_reloc_type checked_types[] = | |
| 9542 | { R_NDS32_15_PCREL_RELA, R_NDS32_9_PCREL_RELA }; | |
| 9543 | ||
| 9544 | int reloc_off = 0, cond_removed = 0, convertible; | |
| 9545 | bfd_vma laddr; | |
| 9546 | int seq_len; /* Original length of instruction sequence. */ | |
| 9547 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *cond_irelfn, *irelend; | |
| 9548 | int pic_ext_target = 0, first_size; | |
| 9549 | unsigned int i; | |
| 9550 | bfd_signed_vma foff; | |
| 9551 | uint32_t insn, re_insn = 0; | |
| 9552 | uint16_t insn16, re_insn16 = 0; | |
| 9553 | unsigned long reloc, cond_reloc; | |
| 35c08157 | 9554 | |
| 1c8f6a4d KLC |
9555 | irelend = internal_relocs + sec->reloc_count; |
| 9556 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
| 9557 | laddr = irel->r_offset; | |
| 9558 | *insn_len = seq_len; | |
| 35c08157 | 9559 | |
| 1c8f6a4d | 9560 | convertible = IS_1ST_CONVERT (irel->r_addend); |
| 35c08157 | 9561 | |
| 1c8f6a4d KLC |
9562 | if (convertible) |
| 9563 | first_size = 2; | |
| 9564 | else | |
| 9565 | first_size = 4; | |
| 9566 | ||
| 9567 | /* Get all needed relocations. */ | |
| 9568 | hi_irelfn = | |
| 9569 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9570 | R_NDS32_HI20_RELA, laddr + first_size); | |
| 9571 | lo_irelfn = | |
| 9572 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9573 | R_NDS32_LO12S0_ORI_RELA, | |
| 9574 | laddr + first_size + 4); | |
| 9575 | ||
| 9576 | for (i = 0; i < sizeof (checked_types) / sizeof (checked_types[0]); i++) | |
| 9577 | { | |
| 9578 | cond_irelfn = | |
| 9579 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9580 | checked_types[i], laddr); | |
| 9581 | if (cond_irelfn != irelend) | |
| 9582 | break; | |
| 9583 | } | |
| 35c08157 | 9584 | |
| 1c8f6a4d KLC |
9585 | if (hi_irelfn == irelend || lo_irelfn == irelend || cond_irelfn == irelend) |
| 9586 | { | |
| 695344c0 | 9587 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP3", |
| d42c267e | 9588 | irel->r_offset); |
| 1c8f6a4d KLC |
9589 | return FALSE; |
| 9590 | } | |
| 35c08157 | 9591 | |
| 1c8f6a4d KLC |
9592 | /* Get the value of the symbol referred to by the reloc. */ |
| 9593 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr, | |
| 9594 | &pic_ext_target); | |
| 35c08157 | 9595 | |
| 1c8f6a4d KLC |
9596 | if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1 |
| 9597 | || foff >= CONSERVATIVE_24BIT_S1) | |
| 9598 | return FALSE; | |
| 35c08157 | 9599 | |
| 1c8f6a4d KLC |
9600 | /* Get the all corresponding instructions. */ |
| 9601 | if (first_size == 4) | |
| 9602 | { | |
| 9603 | insn = bfd_getb32 (contents + laddr); | |
| 9604 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
| 9605 | } | |
| 9606 | else | |
| 9607 | { | |
| 9608 | insn16 = bfd_getb16 (contents + laddr); | |
| 9609 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
| 9610 | } | |
| 35c08157 | 9611 | |
| 1c8f6a4d KLC |
9612 | /* For simplicity of coding, we are going to modify the section |
| 9613 | contents, the section relocs, and the BFD symbol table. We | |
| 9614 | must tell the rest of the code not to free up this | |
| 9615 | information. It would be possible to instead create a table | |
| 9616 | of changes which have to be made, as is done in coff-mips.c; | |
| 9617 | that would be more work, but would require less memory when | |
| 9618 | the linker is run. */ | |
| 35c08157 | 9619 | |
| 1c8f6a4d KLC |
9620 | if (re_insn16 && foff >= -ACCURATE_8BIT_S1 - first_size |
| 9621 | && foff < ACCURATE_8BIT_S1 - first_size) | |
| 9622 | { | |
| 9623 | if (!(seq_len & 0x2)) | |
| 9624 | { | |
| 9625 | /* Don't convert it to 16-bit now, keep this as relaxable | |
| 9626 | for ``label reloc; INSN1a''6. */ | |
| 9627 | /* Save comp_insn32 to buffer. */ | |
| 9628 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
| 9629 | *insn_len = 4; | |
| 9630 | reloc = (N32_OP6 (re_insn) == N32_OP6_BR1) ? | |
| 9631 | R_NDS32_15_PCREL_RELA : R_NDS32_17_PCREL_RELA; | |
| 9632 | cond_reloc = R_NDS32_INSN16; | |
| 9633 | } | |
| 9634 | else | |
| 9635 | { | |
| 9636 | /* Not optimize for speed; convert sequence to 16-bit. */ | |
| 9637 | /* Save comp_insn16 to buffer. */ | |
| 9638 | bfd_putb16 (re_insn16, contents + irel->r_offset); | |
| 9639 | *insn_len = 2; | |
| 9640 | reloc = R_NDS32_9_PCREL_RELA; | |
| 9641 | cond_reloc = R_NDS32_NONE; | |
| 9642 | } | |
| 9643 | cond_removed = 1; | |
| 9644 | } | |
| 9645 | else if (N32_OP6 (re_insn) == N32_OP6_BR1 | |
| 9646 | && (foff >= -(ACCURATE_14BIT_S1 - first_size) | |
| 9647 | && foff < ACCURATE_14BIT_S1 - first_size)) | |
| 9648 | { | |
| 9649 | /* beqs label ; 15_PCREL */ | |
| 9650 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
| 9651 | *insn_len = 4; | |
| 9652 | reloc = R_NDS32_15_PCREL_RELA; | |
| 9653 | cond_reloc = R_NDS32_NONE; | |
| 9654 | cond_removed = 1; | |
| 9655 | } | |
| 9656 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
| 9657 | && foff >= -CONSERVATIVE_16BIT_S1 | |
| 9658 | && foff < CONSERVATIVE_16BIT_S1) | |
| 9659 | { | |
| 9660 | /* beqz label ; 17_PCREL */ | |
| 9661 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
| 9662 | *insn_len = 4; | |
| 9663 | reloc = R_NDS32_17_PCREL_RELA; | |
| 9664 | cond_reloc = R_NDS32_NONE; | |
| 9665 | cond_removed = 1; | |
| 9666 | } | |
| 9667 | else if (foff >= -CONSERVATIVE_24BIT_S1 - reloc_off | |
| 9668 | && foff < CONSERVATIVE_24BIT_S1 - reloc_off) | |
| 9669 | { | |
| 9670 | /* Relax to one of the following 3 variations | |
| 9671 | ||
| 9672 | case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize | |
| 9673 | for space | |
| 9674 | bnes38 rt, $1 ; LONGJUMP2 | |
| 9675 | j label ; 25_PCREL | |
| 9676 | $1 | |
| 9677 | ||
| 9678 | case 4-4; 1st insn not convertible, others don't care | |
| 9679 | bne rt, ra, $1 ; LONGJUMP2 | |
| 9680 | j label ; 25_PCREL | |
| 9681 | $1 | |
| 9682 | ||
| 9683 | case 4-4; 1st insn convertible, 16-bit on, optimize for speed | |
| 9684 | bne rt, ra, $1 ; LONGJUMP2 | |
| 9685 | j label ; 25_PCREL | |
| 9686 | $1 */ | |
| 9687 | ||
| 9688 | /* Offset for first instruction. */ | |
| 9689 | ||
| 9690 | /* Use j label as second instruction. */ | |
| 9691 | *insn_len = 4 + first_size; | |
| 9692 | insn = INSN_J; | |
| 9693 | bfd_putb32 (insn, contents + hi_irelfn->r_offset); | |
| 9694 | reloc = R_NDS32_LONGJUMP2; | |
| 9695 | cond_reloc = R_NDS32_25_PLTREL; | |
| 9696 | } | |
| 9697 | else | |
| 9698 | return FALSE; | |
| 35c08157 | 9699 | |
| 1c8f6a4d KLC |
9700 | if (cond_removed == 1) |
| 9701 | { | |
| 9702 | /* Set all relocations. */ | |
| 9703 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), reloc); | |
| 9704 | irel->r_addend = hi_irelfn->r_addend; | |
| 9705 | ||
| 9706 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), | |
| 9707 | cond_reloc); | |
| 9708 | cond_irelfn->r_addend = 0; | |
| 9709 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
| 9710 | R_NDS32_NONE); | |
| 9711 | } | |
| 9712 | else | |
| 9713 | { | |
| 9714 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
| 9715 | irel->r_addend = irel->r_addend; | |
| 9716 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
| 9717 | cond_reloc); | |
| 9718 | } | |
| 35c08157 | 9719 | |
| 1c8f6a4d KLC |
9720 | if ((seq_len ^ *insn_len ) & 0x2) |
| 9721 | { | |
| 9722 | insn16 = NDS32_NOP16; | |
| 9723 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
| 9724 | lo_irelfn->r_offset = *insn_len; | |
| 9725 | lo_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
| 9726 | R_NDS32_INSN16); | |
| 9727 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
| 9728 | *insn_len += 2; | |
| 9729 | } | |
| 9730 | else | |
| 9731 | lo_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
| 9732 | R_NDS32_NONE); | |
| 9733 | return TRUE; | |
| 9734 | } | |
| 35c08157 | 9735 | |
| 1c8f6a4d | 9736 | /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */ |
| 35c08157 | 9737 | |
| 1c8f6a4d KLC |
9738 | static bfd_boolean |
| 9739 | nds32_elf_relax_longcall4 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 9740 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 9741 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 9742 | Elf_Internal_Shdr *symtab_hdr) | |
| 9743 | { | |
| 9744 | /* The pattern for LONGCALL4. Support for function cse. | |
| 9745 | sethi ta, hi20(symbol) ; LONGCALL4/HI20 | |
| 9746 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
| 9747 | jral ta ; PTR_RES/EMPTY/INSN16 */ | |
| 35c08157 | 9748 | |
| 1c8f6a4d KLC |
9749 | bfd_vma laddr; |
| 9750 | uint32_t insn; | |
| 9751 | Elf_Internal_Rela *hi_irel, *ptr_irel, *insn_irel, *em_irel, *call_irel; | |
| 9752 | Elf_Internal_Rela *irelend; | |
| 9753 | int pic_ext_target = 0; | |
| 9754 | bfd_signed_vma foff; | |
| 35c08157 | 9755 | |
| 1c8f6a4d KLC |
9756 | irelend = internal_relocs + sec->reloc_count; |
| 9757 | laddr = irel->r_offset; | |
| 35c08157 | 9758 | |
| 1c8f6a4d KLC |
9759 | /* Get the reloc for the address from which the register is |
| 9760 | being loaded. This reloc will tell us which function is | |
| 9761 | actually being called. */ | |
| 9762 | hi_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9763 | R_NDS32_HI20_RELA, laddr); | |
| 35c08157 | 9764 | |
| 1c8f6a4d KLC |
9765 | if (hi_irel == irelend) |
| 9766 | { | |
| 695344c0 | 9767 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL4", |
| d42c267e | 9768 | irel->r_offset); |
| 1c8f6a4d KLC |
9769 | return FALSE; |
| 9770 | } | |
| 35c08157 | 9771 | |
| 1c8f6a4d KLC |
9772 | /* Get the value of the symbol referred to by the reloc. */ |
| 9773 | foff = calculate_offset (abfd, sec, hi_irel, isymbuf, symtab_hdr, | |
| 9774 | &pic_ext_target); | |
| 35c08157 | 9775 | |
| 1c8f6a4d KLC |
9776 | /* This condition only happened when symbol is undefined. */ |
| 9777 | if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1 | |
| 9778 | || foff >= CONSERVATIVE_24BIT_S1) | |
| 9779 | return FALSE; | |
| 35c08157 | 9780 | |
| 1c8f6a4d KLC |
9781 | /* Relax to: jal symbol; 25_PCREL */ |
| 9782 | /* For simplicity of coding, we are going to modify the section | |
| 9783 | contents, the section relocs, and the BFD symbol table. We | |
| 9784 | must tell the rest of the code not to free up this | |
| 9785 | information. It would be possible to instead create a table | |
| 9786 | of changes which have to be made, as is done in coff-mips.c; | |
| 9787 | that would be more work, but would require less memory when | |
| 9788 | the linker is run. */ | |
| 35c08157 | 9789 | |
| 1c8f6a4d KLC |
9790 | ptr_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
| 9791 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
| 9792 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9793 | R_NDS32_EMPTY, irel->r_addend); | |
| 35c08157 | 9794 | |
| 1c8f6a4d KLC |
9795 | if (ptr_irel == irelend || em_irel == irelend) |
| 9796 | { | |
| 695344c0 | 9797 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL4", |
| d42c267e | 9798 | irel->r_offset); |
| 1c8f6a4d KLC |
9799 | return FALSE; |
| 9800 | } | |
| 9801 | /* Check these is enough space to insert jal in R_NDS32_EMPTY. */ | |
| 9802 | insn = bfd_getb32 (contents + irel->r_addend); | |
| 9803 | if (insn & 0x80000000) | |
| 9804 | return FALSE; | |
| 35c08157 | 9805 | |
| 1c8f6a4d KLC |
9806 | /* Replace the long call with a jal. */ |
| 9807 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), | |
| 9808 | R_NDS32_25_PCREL_RELA); | |
| 9809 | ptr_irel->r_addend = 1; | |
| 35c08157 | 9810 | |
| 1c8f6a4d KLC |
9811 | /* We don't resolve this here but resolve it in relocate_section. */ |
| 9812 | insn = INSN_JAL; | |
| 9813 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
| 35c08157 | 9814 | |
| 1c8f6a4d KLC |
9815 | irel->r_info = |
| 9816 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 35c08157 | 9817 | |
| 1c8f6a4d KLC |
9818 | /* If there is function cse, HI20 can not remove now. */ |
| 9819 | call_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9820 | R_NDS32_LONGCALL4, laddr); | |
| 9821 | if (call_irel == irelend) | |
| 9822 | { | |
| 9823 | *insn_len = 0; | |
| 9824 | hi_irel->r_info = | |
| 9825 | ELF32_R_INFO (ELF32_R_SYM (hi_irel->r_info), R_NDS32_NONE); | |
| 9826 | } | |
| 35c08157 | 9827 | |
| 1c8f6a4d KLC |
9828 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
| 9829 | R_NDS32_INSN16, irel->r_addend); | |
| 9830 | if (insn_irel != irelend) | |
| 9831 | insn_irel->r_info = | |
| 9832 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 35c08157 | 9833 | |
| 1c8f6a4d KLC |
9834 | return TRUE; |
| 9835 | } | |
| 35c08157 | 9836 | |
| 1c8f6a4d | 9837 | /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */ |
| 35c08157 | 9838 | |
| 1c8f6a4d KLC |
9839 | static bfd_boolean |
| 9840 | nds32_elf_relax_longcall5 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 9841 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 9842 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 9843 | Elf_Internal_Shdr *symtab_hdr) | |
| 9844 | { | |
| 9845 | /* The pattern for LONGCALL5. | |
| 9846 | bltz rt, .L1 ; LONGCALL5/17_PCREL | |
| 9847 | jal symbol ; 25_PCREL | |
| 9848 | .L1: */ | |
| 35c08157 | 9849 | |
| 1c8f6a4d KLC |
9850 | bfd_vma laddr; |
| 9851 | uint32_t insn; | |
| 9852 | Elf_Internal_Rela *cond_irel, *irelend; | |
| 9853 | int pic_ext_target = 0; | |
| 9854 | bfd_signed_vma foff; | |
| 35c08157 | 9855 | |
| 1c8f6a4d KLC |
9856 | irelend = internal_relocs + sec->reloc_count; |
| 9857 | laddr = irel->r_offset; | |
| 9858 | insn = bfd_getb32 (contents + laddr); | |
| 35c08157 | 9859 | |
| 1c8f6a4d KLC |
9860 | /* Get the reloc for the address from which the register is |
| 9861 | being loaded. This reloc will tell us which function is | |
| 9862 | actually being called. */ | |
| 9863 | cond_irel = | |
| 9864 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9865 | R_NDS32_25_PCREL_RELA, irel->r_addend); | |
| 9866 | if (cond_irel == irelend) | |
| 9867 | { | |
| 695344c0 | 9868 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL5", |
| d42c267e | 9869 | irel->r_offset); |
| 1c8f6a4d KLC |
9870 | return FALSE; |
| 9871 | } | |
| 35c08157 | 9872 | |
| 1c8f6a4d KLC |
9873 | /* Get the value of the symbol referred to by the reloc. */ |
| 9874 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr, | |
| 9875 | &pic_ext_target); | |
| 35c08157 | 9876 | |
| 1c8f6a4d KLC |
9877 | if (foff == 0 || foff < -CONSERVATIVE_16BIT_S1 |
| 9878 | || foff >= CONSERVATIVE_16BIT_S1) | |
| 9879 | return FALSE; | |
| 35c08157 | 9880 | |
| 1c8f6a4d KLC |
9881 | /* Relax to bgezal rt, label ; 17_PCREL |
| 9882 | or bltzal rt, label ; 17_PCREL */ | |
| 35c08157 | 9883 | |
| 1c8f6a4d KLC |
9884 | /* Convert to complimentary conditional call. */ |
| 9885 | insn = CONVERT_CONDITION_CALL (insn); | |
| 35c08157 | 9886 | |
| 1c8f6a4d KLC |
9887 | /* For simplicity of coding, we are going to modify the section |
| 9888 | contents, the section relocs, and the BFD symbol table. We | |
| 9889 | must tell the rest of the code not to free up this | |
| 9890 | information. It would be possible to instead create a table | |
| 9891 | of changes which have to be made, as is done in coff-mips.c; | |
| 9892 | that would be more work, but would require less memory when | |
| 9893 | the linker is run. */ | |
| 35c08157 | 9894 | |
| 1c8f6a4d KLC |
9895 | /* Modify relocation and contents. */ |
| 9896 | cond_irel->r_info = | |
| 9897 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_17_PCREL_RELA); | |
| 35c08157 | 9898 | |
| 1c8f6a4d KLC |
9899 | /* Replace the long call with a bgezal. */ |
| 9900 | bfd_putb32 (insn, contents + cond_irel->r_offset); | |
| 9901 | *insn_len = 0; | |
| 35c08157 | 9902 | |
| 1c8f6a4d KLC |
9903 | /* Clean unnessary relocations. */ |
| 9904 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 35c08157 | 9905 | |
| 1c8f6a4d KLC |
9906 | cond_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
| 9907 | R_NDS32_17_PCREL_RELA, laddr); | |
| 9908 | cond_irel->r_info = | |
| 9909 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
| 35c08157 | 9910 | |
| 1c8f6a4d KLC |
9911 | return TRUE; |
| 9912 | } | |
| 35c08157 | 9913 | |
| 1c8f6a4d | 9914 | /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */ |
| 35c08157 | 9915 | |
| 1c8f6a4d KLC |
9916 | static bfd_boolean |
| 9917 | nds32_elf_relax_longcall6 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 9918 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 9919 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 9920 | Elf_Internal_Shdr *symtab_hdr) | |
| 9921 | { | |
| 9922 | /* The pattern for LONGCALL6. | |
| 9923 | bltz rt, .L1 ; LONGCALL6/17_PCREL | |
| 9924 | sethi ta, hi20(symbol) ; HI20/PTR | |
| 9925 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
| 9926 | jral ta ; PTR_RES/EMPTY/INSN16 | |
| 9927 | .L1 */ | |
| 9928 | ||
| 9929 | bfd_vma laddr; | |
| 9930 | uint32_t insn; | |
| 9931 | Elf_Internal_Rela *em_irel, *cond_irel, *irelend; | |
| 9932 | int pic_ext_target = 0; | |
| 9933 | bfd_signed_vma foff; | |
| 35c08157 | 9934 | |
| 1c8f6a4d KLC |
9935 | irelend = internal_relocs + sec->reloc_count; |
| 9936 | laddr = irel->r_offset; | |
| 35c08157 | 9937 | |
| 1c8f6a4d KLC |
9938 | /* Get the reloc for the address from which the register is |
| 9939 | being loaded. This reloc will tell us which function is | |
| 9940 | actually being called. */ | |
| 9941 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9942 | R_NDS32_EMPTY, irel->r_addend); | |
| 35c08157 | 9943 | |
| 1c8f6a4d KLC |
9944 | if (em_irel == irelend) |
| 9945 | { | |
| 695344c0 | 9946 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL6", |
| d42c267e | 9947 | irel->r_offset); |
| 1c8f6a4d KLC |
9948 | return FALSE; |
| 9949 | } | |
| 35c08157 | 9950 | |
| 1c8f6a4d KLC |
9951 | /* Get the value of the symbol referred to by the reloc. */ |
| 9952 | foff = calculate_offset (abfd, sec, em_irel, isymbuf, symtab_hdr, | |
| 9953 | &pic_ext_target); | |
| 35c08157 | 9954 | |
| 1c8f6a4d KLC |
9955 | if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1 |
| 9956 | || foff >= CONSERVATIVE_24BIT_S1) | |
| 9957 | return FALSE; | |
| 35c08157 | 9958 | |
| 1c8f6a4d KLC |
9959 | /* Check these is enough space to insert jal in R_NDS32_EMPTY. */ |
| 9960 | insn = bfd_getb32 (contents + irel->r_addend); | |
| 9961 | if (insn & 0x80000000) | |
| 9962 | return FALSE; | |
| 35c08157 | 9963 | |
| 1c8f6a4d KLC |
9964 | insn = bfd_getb32 (contents + laddr); |
| 9965 | if (foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
| 9966 | { | |
| 9967 | /* Relax to bgezal rt, label ; 17_PCREL | |
| 9968 | or bltzal rt, label ; 17_PCREL */ | |
| 35c08157 | 9969 | |
| 1c8f6a4d KLC |
9970 | /* Convert to complimentary conditional call. */ |
| 9971 | *insn_len = 0; | |
| 9972 | insn = CONVERT_CONDITION_CALL (insn); | |
| 9973 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
| 9974 | ||
| 9975 | em_irel->r_info = | |
| 9976 | ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), R_NDS32_17_PCREL_RELA); | |
| 9977 | ||
| 9978 | /* Set resolved relocation. */ | |
| 9979 | cond_irel = | |
| 9980 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9981 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
| 9982 | if (cond_irel == irelend) | |
| 35c08157 | 9983 | { |
| 695344c0 | 9984 | _bfd_error_handler (unrecognized_reloc_msg, abfd, |
| d42c267e | 9985 | "R_NDS32_LONGCALL6", irel->r_offset); |
| 1c8f6a4d KLC |
9986 | return FALSE; |
| 9987 | } | |
| 9988 | cond_irel->r_addend = 1; | |
| 35c08157 | 9989 | |
| 1c8f6a4d | 9990 | /* Clear relocations. */ |
| 35c08157 | 9991 | |
| 1c8f6a4d KLC |
9992 | irel->r_info = |
| 9993 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 35c08157 | 9994 | |
| 1c8f6a4d KLC |
9995 | cond_irel = |
| 9996 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 9997 | R_NDS32_17_PCREL_RELA, laddr); | |
| 9998 | if (cond_irel != irelend) | |
| 9999 | cond_irel->r_info = | |
| 10000 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
| 35c08157 | 10001 | |
| 1c8f6a4d KLC |
10002 | cond_irel = |
| 10003 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10004 | R_NDS32_INSN16, irel->r_addend); | |
| 10005 | if (cond_irel != irelend) | |
| 10006 | cond_irel->r_info = | |
| 10007 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
| 35c08157 | 10008 | |
| 1c8f6a4d KLC |
10009 | } |
| 10010 | else if (foff >= -CONSERVATIVE_24BIT_S1 && foff < CONSERVATIVE_24BIT_S1) | |
| 10011 | { | |
| 10012 | /* Relax to the following instruction sequence | |
| 10013 | bltz rt, .L1 ; LONGCALL2/17_PCREL | |
| 10014 | jal symbol ; 25_PCREL/PTR_RES | |
| 10015 | .L1 */ | |
| 10016 | *insn_len = 4; | |
| 10017 | /* Convert instruction. */ | |
| 10018 | insn = INSN_JAL; | |
| 10019 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
| 35c08157 | 10020 | |
| 1c8f6a4d KLC |
10021 | /* Convert relocations. */ |
| 10022 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), | |
| 10023 | R_NDS32_25_PCREL_RELA); | |
| 10024 | irel->r_info = | |
| 10025 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_LONGCALL5); | |
| 35c08157 | 10026 | |
| 1c8f6a4d KLC |
10027 | /* Set resolved relocation. */ |
| 10028 | cond_irel = | |
| 10029 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10030 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
| 10031 | if (cond_irel == irelend) | |
| 10032 | { | |
| 695344c0 | 10033 | _bfd_error_handler (unrecognized_reloc_msg, abfd, |
| d42c267e | 10034 | "R_NDS32_LONGCALL6", irel->r_offset); |
| 1c8f6a4d KLC |
10035 | return FALSE; |
| 10036 | } | |
| 10037 | cond_irel->r_addend = 1; | |
| 35c08157 | 10038 | |
| 1c8f6a4d KLC |
10039 | cond_irel = |
| 10040 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10041 | R_NDS32_INSN16, irel->r_addend); | |
| 10042 | if (cond_irel != irelend) | |
| 10043 | cond_irel->r_info = | |
| 10044 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
| 10045 | } | |
| 10046 | return TRUE; | |
| 10047 | } | |
| 35c08157 | 10048 | |
| 1c8f6a4d | 10049 | /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */ |
| 35c08157 | 10050 | |
| 1c8f6a4d KLC |
10051 | static bfd_boolean |
| 10052 | nds32_elf_relax_longjump4 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 10053 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 10054 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 10055 | Elf_Internal_Shdr *symtab_hdr) | |
| 10056 | { | |
| 10057 | /* The pattern for LONGJUMP4. | |
| 10058 | sethi ta, hi20(symbol) ; LONGJUMP4/HI20 | |
| 10059 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
| 10060 | jr ta ; PTR_RES/INSN16/EMPTY */ | |
| 10061 | ||
| 10062 | bfd_vma laddr; | |
| 10063 | int seq_len; /* Original length of instruction sequence. */ | |
| 10064 | uint32_t insn; | |
| 10065 | Elf_Internal_Rela *hi_irel, *ptr_irel, *em_irel, *call_irel, *irelend; | |
| 10066 | int pic_ext_target = 0; | |
| 10067 | bfd_signed_vma foff; | |
| 35c08157 | 10068 | |
| 1c8f6a4d KLC |
10069 | irelend = internal_relocs + sec->reloc_count; |
| 10070 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
| 10071 | laddr = irel->r_offset; | |
| 10072 | *insn_len = seq_len; | |
| 35c08157 | 10073 | |
| 1c8f6a4d KLC |
10074 | /* Get the reloc for the address from which the register is |
| 10075 | being loaded. This reloc will tell us which function is | |
| 10076 | actually being called. */ | |
| 35c08157 | 10077 | |
| 1c8f6a4d KLC |
10078 | hi_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
| 10079 | R_NDS32_HI20_RELA, laddr); | |
| 35c08157 | 10080 | |
| 1c8f6a4d KLC |
10081 | if (hi_irel == irelend) |
| 10082 | { | |
| 695344c0 | 10083 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP4", |
| d42c267e | 10084 | irel->r_offset); |
| 1c8f6a4d KLC |
10085 | return FALSE; |
| 10086 | } | |
| 35c08157 | 10087 | |
| 1c8f6a4d KLC |
10088 | /* Get the value of the symbol referred to by the reloc. */ |
| 10089 | foff = calculate_offset (abfd, sec, hi_irel, isymbuf, symtab_hdr, | |
| 10090 | &pic_ext_target); | |
| 35c08157 | 10091 | |
| 1c8f6a4d KLC |
10092 | if (pic_ext_target || foff == 0 || foff >= CONSERVATIVE_24BIT_S1 |
| 10093 | || foff < -CONSERVATIVE_24BIT_S1) | |
| 10094 | return FALSE; | |
| 35c08157 | 10095 | |
| 1c8f6a4d KLC |
10096 | /* Convert it to "j label", it may be converted to j8 in the final |
| 10097 | pass of relaxation. Therefore, we do not consider this currently. */ | |
| 10098 | ptr_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10099 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
| 10100 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10101 | R_NDS32_EMPTY, irel->r_addend); | |
| 35c08157 | 10102 | |
| 1c8f6a4d KLC |
10103 | if (ptr_irel == irelend || em_irel == irelend) |
| 10104 | { | |
| 695344c0 | 10105 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP4", |
| d42c267e | 10106 | irel->r_offset); |
| 1c8f6a4d KLC |
10107 | return FALSE; |
| 10108 | } | |
| 35c08157 | 10109 | |
| 1c8f6a4d KLC |
10110 | em_irel->r_info = |
| 10111 | ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), R_NDS32_25_PCREL_RELA); | |
| 10112 | ptr_irel->r_addend = 1; | |
| 35c08157 | 10113 | |
| 1c8f6a4d KLC |
10114 | /* Write instruction. */ |
| 10115 | insn = INSN_J; | |
| 10116 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
| 35c08157 | 10117 | |
| 1c8f6a4d KLC |
10118 | /* Clear relocations. */ |
| 10119 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 35c08157 | 10120 | |
| 1c8f6a4d KLC |
10121 | /* If there is function cse, HI20 can not remove now. */ |
| 10122 | call_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10123 | R_NDS32_LONGJUMP4, laddr); | |
| 10124 | if (call_irel == irelend) | |
| 10125 | { | |
| 10126 | *insn_len = 0; | |
| 10127 | hi_irel->r_info = | |
| 10128 | ELF32_R_INFO (ELF32_R_SYM (hi_irel->r_info), R_NDS32_NONE); | |
| 10129 | } | |
| 35c08157 | 10130 | |
| 1c8f6a4d KLC |
10131 | return TRUE; |
| 10132 | } | |
| 35c08157 | 10133 | |
| 1c8f6a4d | 10134 | /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */ |
| 35c08157 | 10135 | |
| 1c8f6a4d KLC |
10136 | static bfd_boolean |
| 10137 | nds32_elf_relax_longjump5 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 10138 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 10139 | int *seq_len, bfd_byte *contents, | |
| 10140 | Elf_Internal_Sym *isymbuf, | |
| 10141 | Elf_Internal_Shdr *symtab_hdr) | |
| 10142 | { | |
| 10143 | /* There are 2 variations for LONGJUMP5 | |
| 10144 | case 2-4; 1st insn convertible, 16-bit on. | |
| 10145 | bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16 | |
| 10146 | j label ; 25_PCREL/INSN16 | |
| 10147 | $1: | |
| 10148 | ||
| 10149 | case 4-4; 1st insn not convertible | |
| 10150 | bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16 | |
| 10151 | j label ; 25_PCREL/INSN16 | |
| 10152 | .L1: */ | |
| 10153 | ||
| 10154 | bfd_vma laddr; | |
| 10155 | Elf_Internal_Rela *cond_irel, *irelend; | |
| 10156 | int pic_ext_target = 0; | |
| 10157 | unsigned int i; | |
| 10158 | bfd_signed_vma foff; | |
| 10159 | uint32_t insn, re_insn = 0; | |
| 10160 | uint16_t insn16, re_insn16 = 0; | |
| 10161 | unsigned long reloc; | |
| 35c08157 | 10162 | |
| 1c8f6a4d KLC |
10163 | enum elf_nds32_reloc_type checked_types[] = |
| 10164 | { R_NDS32_17_PCREL_RELA, R_NDS32_15_PCREL_RELA, | |
| 10165 | R_NDS32_9_PCREL_RELA, R_NDS32_INSN16 }; | |
| 35c08157 | 10166 | |
| 1c8f6a4d KLC |
10167 | irelend = internal_relocs + sec->reloc_count; |
| 10168 | laddr = irel->r_offset; | |
| 35c08157 | 10169 | |
| 1c8f6a4d KLC |
10170 | /* Get the reloc for the address from which the register is |
| 10171 | being loaded. This reloc will tell us which function is | |
| 10172 | actually being called. */ | |
| 35c08157 | 10173 | |
| 1c8f6a4d KLC |
10174 | cond_irel = |
| 10175 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10176 | R_NDS32_25_PCREL_RELA, irel->r_addend); | |
| 10177 | if (cond_irel == irelend) | |
| 10178 | { | |
| 695344c0 | 10179 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP5", |
| d42c267e | 10180 | irel->r_offset); |
| 1c8f6a4d KLC |
10181 | return FALSE; |
| 10182 | } | |
| 35c08157 | 10183 | |
| 1c8f6a4d KLC |
10184 | /* Get the value of the symbol referred to by the reloc. */ |
| 10185 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr, | |
| 10186 | &pic_ext_target); | |
| 35c08157 | 10187 | |
| 1c8f6a4d KLC |
10188 | if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_16BIT_S1 |
| 10189 | || foff >= CONSERVATIVE_16BIT_S1) | |
| 10190 | return FALSE; | |
| 35c08157 | 10191 | |
| 1c8f6a4d KLC |
10192 | /* Get the all corresponding instructions. */ |
| 10193 | insn = bfd_getb32 (contents + laddr); | |
| 10194 | /* Check instruction size. */ | |
| 10195 | if (insn & 0x80000000) | |
| 10196 | { | |
| 10197 | *seq_len = 0; | |
| 10198 | insn16 = insn >> 16; | |
| 10199 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
| 10200 | } | |
| 10201 | else | |
| 10202 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
| 35c08157 | 10203 | |
| 1c8f6a4d KLC |
10204 | if (N32_OP6 (re_insn) == N32_OP6_BR1 |
| 10205 | && (foff >= -CONSERVATIVE_14BIT_S1 && foff < CONSERVATIVE_14BIT_S1)) | |
| 10206 | { | |
| 10207 | /* beqs label ; 15_PCREL. */ | |
| 10208 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
| 10209 | reloc = R_NDS32_15_PCREL_RELA; | |
| 10210 | } | |
| 10211 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
| 10212 | && foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
| 10213 | { | |
| 10214 | /* beqz label ; 17_PCREL. */ | |
| 10215 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
| 10216 | reloc = R_NDS32_17_PCREL_RELA; | |
| 10217 | } | |
| 10218 | else if ( N32_OP6 (re_insn) == N32_OP6_BR3 | |
| 10219 | && foff >= -CONSERVATIVE_8BIT_S1 && foff < CONSERVATIVE_8BIT_S1) | |
| 10220 | { | |
| 10221 | /* beqc label ; 9_PCREL. */ | |
| 10222 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
| 10223 | reloc = R_NDS32_WORD_9_PCREL_RELA; | |
| 10224 | } | |
| 10225 | else | |
| 10226 | return FALSE; | |
| 35c08157 | 10227 | |
| 1c8f6a4d KLC |
10228 | /* Set all relocations. */ |
| 10229 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), reloc); | |
| 35c08157 | 10230 | |
| 1c8f6a4d KLC |
10231 | /* Clean relocations. */ |
| 10232 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 10233 | for (i = 0; i < sizeof (checked_types) / sizeof (checked_types[0]); i++) | |
| 10234 | { | |
| 10235 | cond_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10236 | checked_types[i], laddr); | |
| 10237 | if (cond_irel != irelend) | |
| 10238 | { | |
| 10239 | if (*seq_len == 0 | |
| 10240 | && (ELF32_R_TYPE (cond_irel->r_info) == R_NDS32_INSN16)) | |
| 35c08157 | 10241 | { |
| 1c8f6a4d KLC |
10242 | /* If the branch instruction is 2 byte, it cannot remove |
| 10243 | directly. Only convert it to nop16 and remove it after | |
| 10244 | checking alignment issue. */ | |
| 10245 | insn16 = NDS32_NOP16; | |
| 10246 | bfd_putb16 (insn16, contents + laddr); | |
| 10247 | cond_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
| 35c08157 KLC |
10248 | } |
| 10249 | else | |
| 1c8f6a4d KLC |
10250 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), |
| 10251 | R_NDS32_NONE); | |
| 35c08157 | 10252 | } |
| 1c8f6a4d KLC |
10253 | } |
| 10254 | *insn_len = 0; | |
| 35c08157 | 10255 | |
| 1c8f6a4d KLC |
10256 | return TRUE; |
| 10257 | } | |
| 35c08157 | 10258 | |
| 1c8f6a4d | 10259 | /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */ |
| 35c08157 | 10260 | |
| 1c8f6a4d KLC |
10261 | static bfd_boolean |
| 10262 | nds32_elf_relax_longjump6 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 10263 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 10264 | int *seq_len, bfd_byte *contents, | |
| 10265 | Elf_Internal_Sym *isymbuf, | |
| 10266 | Elf_Internal_Shdr *symtab_hdr) | |
| 10267 | { | |
| 10268 | /* There are 5 variations for LONGJUMP6 | |
| 10269 | case : 2-4-4-4; 1st insn convertible, 16-bit on. | |
| 10270 | bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16 | |
| 10271 | sethi ta, hi20(symbol) ; HI20/PTR | |
| 10272 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
| 10273 | jr ta ; PTR_RES/INSN16/EMPTY | |
| 10274 | .L1: | |
| 10275 | ||
| 10276 | case : 4-4-4-4; 1st insn not convertible, 16-bit on. | |
| 10277 | bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16 | |
| 10278 | sethi ta, hi20(symbol) ; HI20/PTR | |
| 10279 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
| 10280 | jr ta ; PTR_RES/INSN16/EMPTY | |
| 10281 | .L1: */ | |
| 10282 | ||
| 10283 | enum elf_nds32_reloc_type checked_types[] = | |
| 10284 | { R_NDS32_17_PCREL_RELA, R_NDS32_15_PCREL_RELA, | |
| 10285 | R_NDS32_9_PCREL_RELA, R_NDS32_INSN16 }; | |
| 10286 | ||
| 10287 | int reloc_off = 0, cond_removed = 0; | |
| 10288 | bfd_vma laddr; | |
| 10289 | Elf_Internal_Rela *cond_irel, *em_irel, *irelend, *insn_irel; | |
| 10290 | int pic_ext_target = 0; | |
| 10291 | unsigned int i; | |
| 10292 | bfd_signed_vma foff; | |
| 10293 | uint32_t insn, re_insn = 0; | |
| 10294 | uint16_t insn16, re_insn16 = 0; | |
| 10295 | unsigned long reloc; | |
| 35c08157 | 10296 | |
| 1c8f6a4d KLC |
10297 | irelend = internal_relocs + sec->reloc_count; |
| 10298 | laddr = irel->r_offset; | |
| 35c08157 | 10299 | |
| 1c8f6a4d KLC |
10300 | /* Get the reloc for the address from which the register is |
| 10301 | being loaded. This reloc will tell us which function is | |
| 10302 | actually being called. */ | |
| 10303 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10304 | R_NDS32_EMPTY, irel->r_addend); | |
| 35c08157 | 10305 | |
| 1c8f6a4d KLC |
10306 | if (em_irel == irelend) |
| 10307 | { | |
| 695344c0 | 10308 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP6", |
| d42c267e | 10309 | irel->r_offset); |
| 1c8f6a4d KLC |
10310 | return FALSE; |
| 10311 | } | |
| 35c08157 | 10312 | |
| 1c8f6a4d KLC |
10313 | /* Get the value of the symbol referred to by the reloc. */ |
| 10314 | foff = calculate_offset (abfd, sec, em_irel, isymbuf, symtab_hdr, | |
| 10315 | &pic_ext_target); | |
| 35c08157 | 10316 | |
| 1c8f6a4d KLC |
10317 | if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_24BIT_S1 |
| 10318 | || foff >= CONSERVATIVE_24BIT_S1) | |
| 10319 | return FALSE; | |
| 35c08157 | 10320 | |
| 1c8f6a4d KLC |
10321 | insn = bfd_getb32 (contents + laddr); |
| 10322 | /* Check instruction size. */ | |
| 10323 | if (insn & 0x80000000) | |
| 10324 | { | |
| 10325 | *seq_len = 0; | |
| 10326 | insn16 = insn >> 16; | |
| 10327 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
| 10328 | } | |
| 10329 | else | |
| 10330 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
| 35c08157 | 10331 | |
| 1c8f6a4d KLC |
10332 | /* For simplicity of coding, we are going to modify the section |
| 10333 | contents, the section relocs, and the BFD symbol table. We | |
| 10334 | must tell the rest of the code not to free up this | |
| 10335 | information. It would be possible to instead create a table | |
| 10336 | of changes which have to be made, as is done in coff-mips.c; | |
| 10337 | that would be more work, but would require less memory when | |
| 10338 | the linker is run. */ | |
| 35c08157 | 10339 | |
| 1c8f6a4d KLC |
10340 | if (N32_OP6 (re_insn) == N32_OP6_BR1 |
| 10341 | && (foff >= -CONSERVATIVE_14BIT_S1 && foff < CONSERVATIVE_14BIT_S1)) | |
| 10342 | { | |
| 10343 | /* beqs label ; 15_PCREL */ | |
| 10344 | bfd_putb32 (re_insn, contents + em_irel->r_offset); | |
| 10345 | reloc = R_NDS32_15_PCREL_RELA; | |
| 10346 | cond_removed = 1; | |
| 10347 | } | |
| 10348 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
| 10349 | && foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
| 10350 | { | |
| 10351 | /* beqz label ; 17_PCREL */ | |
| 10352 | bfd_putb32 (re_insn, contents + em_irel->r_offset); | |
| 10353 | reloc = R_NDS32_17_PCREL_RELA; | |
| 10354 | cond_removed = 1; | |
| 10355 | } | |
| 10356 | else if (foff >= -CONSERVATIVE_24BIT_S1 - reloc_off | |
| 10357 | && foff < CONSERVATIVE_24BIT_S1 - reloc_off) | |
| 10358 | { | |
| 10359 | /* Relax to one of the following 2 variations | |
| 35c08157 | 10360 | |
| 1c8f6a4d KLC |
10361 | case 2-4; 1st insn convertible, 16-bit on. |
| 10362 | bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16 | |
| 10363 | j label ; 25_PCREL/INSN16 | |
| 10364 | $1: | |
| 35c08157 | 10365 | |
| 1c8f6a4d KLC |
10366 | case 4-4; 1st insn not convertible |
| 10367 | bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16 | |
| 10368 | j label ; 25_PCREL/INSN16 | |
| 10369 | .L1: */ | |
| 35c08157 | 10370 | |
| 1c8f6a4d KLC |
10371 | /* Use j label as second instruction. */ |
| 10372 | insn = INSN_J; | |
| 10373 | reloc = R_NDS32_25_PCREL_RELA; | |
| 10374 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
| 10375 | } | |
| 10376 | else | |
| 10377 | return FALSE; | |
| 35c08157 | 10378 | |
| 1c8f6a4d KLC |
10379 | /* Set all relocations. */ |
| 10380 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), reloc); | |
| 35c08157 | 10381 | |
| 1c8f6a4d KLC |
10382 | cond_irel = |
| 10383 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10384 | R_NDS32_PTR_RESOLVED, em_irel->r_offset); | |
| 10385 | cond_irel->r_addend = 1; | |
| 35c08157 | 10386 | |
| 1c8f6a4d KLC |
10387 | /* Use INSN16 of first branch instruction to distinguish if keeping |
| 10388 | INSN16 of final instruction or not. */ | |
| 10389 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10390 | R_NDS32_INSN16, irel->r_offset); | |
| 10391 | if (insn_irel == irelend) | |
| 10392 | { | |
| 10393 | /* Clean the final INSN16. */ | |
| 10394 | insn_irel = | |
| 10395 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10396 | R_NDS32_INSN16, em_irel->r_offset); | |
| 10397 | insn_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
| 10398 | R_NDS32_NONE); | |
| 10399 | } | |
| 10400 | ||
| 10401 | if (cond_removed == 1) | |
| 10402 | { | |
| 10403 | *insn_len = 0; | |
| 10404 | ||
| 10405 | /* Clear relocations. */ | |
| 10406 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 35c08157 | 10407 | |
| 1c8f6a4d KLC |
10408 | for (i = 0; i < sizeof (checked_types) / sizeof (checked_types[0]); i++) |
| 10409 | { | |
| 10410 | cond_irel = | |
| 10411 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10412 | checked_types[i], laddr); | |
| 10413 | if (cond_irel != irelend) | |
| 35c08157 | 10414 | { |
| 1c8f6a4d KLC |
10415 | if (*seq_len == 0 |
| 10416 | && (ELF32_R_TYPE (cond_irel->r_info) == R_NDS32_INSN16)) | |
| 10417 | { | |
| 10418 | /* If the branch instruction is 2 byte, it cannot remove | |
| 10419 | directly. Only convert it to nop16 and remove it after | |
| 10420 | checking alignment issue. */ | |
| 10421 | insn16 = NDS32_NOP16; | |
| 10422 | bfd_putb16 (insn16, contents + laddr); | |
| 10423 | cond_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
| 10424 | } | |
| 10425 | else | |
| 10426 | cond_irel->r_info = | |
| 10427 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
| 35c08157 | 10428 | } |
| 35c08157 | 10429 | } |
| 1c8f6a4d KLC |
10430 | } |
| 10431 | else | |
| 10432 | { | |
| 10433 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
| 10434 | R_NDS32_LONGJUMP5); | |
| 10435 | } | |
| 35c08157 | 10436 | |
| 1c8f6a4d KLC |
10437 | return TRUE; |
| 10438 | } | |
| 35c08157 | 10439 | |
| 1c8f6a4d | 10440 | /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */ |
| 35c08157 | 10441 | |
| 1c8f6a4d KLC |
10442 | static bfd_boolean |
| 10443 | nds32_elf_relax_longjump7 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 10444 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 10445 | int *seq_len, bfd_byte *contents, | |
| 10446 | Elf_Internal_Sym *isymbuf, | |
| 10447 | Elf_Internal_Shdr *symtab_hdr) | |
| 10448 | { | |
| 10449 | /* There are 2 variations for LONGJUMP5 | |
| 10450 | case 2-4; 1st insn convertible, 16-bit on. | |
| 10451 | movi55 ta, imm11 ; LONGJUMP7/INSN16 | |
| 10452 | beq rt, ta, label ; 15_PCREL | |
| 10453 | ||
| 10454 | case 4-4; 1st insn not convertible | |
| 10455 | movi55 ta, imm11 ; LONGJUMP7/INSN16 | |
| 10456 | beq rt, ta, label ; 15_PCREL */ | |
| 10457 | ||
| 10458 | bfd_vma laddr; | |
| 10459 | Elf_Internal_Rela *cond_irel, *irelend, *insn_irel; | |
| 10460 | int pic_ext_target = 0; | |
| 10461 | bfd_signed_vma foff; | |
| 10462 | uint32_t insn, re_insn = 0; | |
| 10463 | uint16_t insn16; | |
| 10464 | uint32_t imm11; | |
| 35c08157 | 10465 | |
| 1c8f6a4d KLC |
10466 | irelend = internal_relocs + sec->reloc_count; |
| 10467 | laddr = irel->r_offset; | |
| 35c08157 | 10468 | |
| 1c8f6a4d KLC |
10469 | /* Get the reloc for the address from which the register is |
| 10470 | being loaded. This reloc will tell us which function is | |
| 10471 | actually being called. */ | |
| 35c08157 | 10472 | |
| 1c8f6a4d KLC |
10473 | cond_irel = |
| 10474 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10475 | R_NDS32_15_PCREL_RELA, irel->r_addend); | |
| 10476 | if (cond_irel == irelend) | |
| 10477 | { | |
| 695344c0 | 10478 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP7", |
| d42c267e | 10479 | irel->r_offset); |
| 1c8f6a4d KLC |
10480 | return FALSE; |
| 10481 | } | |
| 35c08157 | 10482 | |
| 1c8f6a4d KLC |
10483 | /* Get the value of the symbol referred to by the reloc. */ |
| 10484 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr, | |
| 10485 | &pic_ext_target); | |
| 35c08157 | 10486 | |
| 1c8f6a4d KLC |
10487 | if (pic_ext_target || foff == 0 || foff < -CONSERVATIVE_8BIT_S1 |
| 10488 | || foff >= CONSERVATIVE_8BIT_S1) | |
| 10489 | return FALSE; | |
| 35c08157 | 10490 | |
| 1c8f6a4d KLC |
10491 | /* Get the first instruction for its size. */ |
| 10492 | insn = bfd_getb32 (contents + laddr); | |
| 10493 | if (insn & 0x80000000) | |
| 10494 | { | |
| 10495 | *seq_len = 0; | |
| 10496 | /* Get the immediate from movi55. */ | |
| 10497 | imm11 = N16_IMM5S (insn >> 16); | |
| 10498 | } | |
| 10499 | else | |
| 10500 | { | |
| 10501 | /* Get the immediate from movi. */ | |
| 10502 | imm11 = N32_IMM20S (insn); | |
| 35c08157 KLC |
10503 | } |
| 10504 | ||
| 1c8f6a4d KLC |
10505 | /* Get the branch instruction. */ |
| 10506 | insn = bfd_getb32 (contents + irel->r_addend); | |
| 10507 | /* Convert instruction to BR3. */ | |
| 10508 | if ((insn >> 14) & 0x1) | |
| 10509 | re_insn = N32_BR3 (BNEC, N32_RT5 (insn), imm11, 0); | |
| 10510 | else | |
| 10511 | re_insn = N32_BR3 (BEQC, N32_RT5 (insn), imm11, 0); | |
| 35c08157 | 10512 | |
| 1c8f6a4d | 10513 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); |
| 35c08157 | 10514 | |
| 1c8f6a4d KLC |
10515 | /* Set all relocations. */ |
| 10516 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
| 10517 | R_NDS32_WORD_9_PCREL_RELA); | |
| 10518 | ||
| 10519 | /* Clean relocations. */ | |
| 10520 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 10521 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10522 | R_NDS32_INSN16, irel->r_offset); | |
| 10523 | if (insn_irel != irelend) | |
| 10524 | { | |
| 10525 | if (*seq_len == 0) | |
| 35c08157 | 10526 | { |
| 1c8f6a4d KLC |
10527 | /* If the first insntruction is 16bit, convert it to nop16. */ |
| 10528 | insn16 = NDS32_NOP16; | |
| 10529 | bfd_putb16 (insn16, contents + laddr); | |
| 10530 | insn_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
| 35c08157 | 10531 | } |
| 1c8f6a4d KLC |
10532 | else |
| 10533 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
| 10534 | R_NDS32_NONE); | |
| 35c08157 | 10535 | } |
| 1c8f6a4d | 10536 | *insn_len = 0; |
| 35c08157 | 10537 | |
| 1c8f6a4d KLC |
10538 | return TRUE; |
| 10539 | } | |
| 35c08157 | 10540 | |
| 1c8f6a4d | 10541 | #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f) |
| 35c08157 | 10542 | |
| 1c8f6a4d | 10543 | /* Relax LOADSTORE relocation for nds32_elf_relax_section. */ |
| 35c08157 | 10544 | |
| 1c8f6a4d KLC |
10545 | static bfd_boolean |
| 10546 | nds32_elf_relax_loadstore (struct bfd_link_info *link_info, bfd *abfd, | |
| 10547 | asection *sec, Elf_Internal_Rela *irel, | |
| 10548 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 10549 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 10550 | Elf_Internal_Shdr *symtab_hdr, int load_store_relax) | |
| 10551 | { | |
| 6cae483a AM |
10552 | int eliminate_sethi = 0, range_type; |
| 10553 | unsigned int i; | |
| 1c8f6a4d KLC |
10554 | bfd_vma local_sda, laddr; |
| 10555 | int seq_len; /* Original length of instruction sequence. */ | |
| 10556 | uint32_t insn; | |
| 10557 | Elf_Internal_Rela *hi_irelfn = NULL, *irelend; | |
| 10558 | bfd_vma access_addr = 0; | |
| 10559 | bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */ | |
| 10560 | enum elf_nds32_reloc_type checked_types[] = | |
| 10561 | { R_NDS32_HI20_RELA, R_NDS32_GOT_HI20, | |
| 10562 | R_NDS32_GOTPC_HI20, R_NDS32_GOTOFF_HI20, | |
| 10563 | R_NDS32_PLTREL_HI20, R_NDS32_PLT_GOTREL_HI20, | |
| 10564 | R_NDS32_TLS_LE_HI20 | |
| 10565 | }; | |
| 35c08157 | 10566 | |
| 1c8f6a4d KLC |
10567 | irelend = internal_relocs + sec->reloc_count; |
| 10568 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
| 10569 | laddr = irel->r_offset; | |
| 10570 | *insn_len = seq_len; | |
| 35c08157 | 10571 | |
| 1c8f6a4d | 10572 | /* Get the high part relocation. */ |
| 6cae483a | 10573 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
| 1c8f6a4d KLC |
10574 | { |
| 10575 | hi_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 10576 | checked_types[i], laddr); | |
| 10577 | if (hi_irelfn != irelend) | |
| 10578 | break; | |
| 10579 | } | |
| 35c08157 | 10580 | |
| 1c8f6a4d KLC |
10581 | if (hi_irelfn == irelend) |
| 10582 | { | |
| 695344c0 | 10583 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LOADSTORE", |
| d42c267e | 10584 | irel->r_offset); |
| 1c8f6a4d KLC |
10585 | return FALSE; |
| 10586 | } | |
| 35c08157 | 10587 | |
| 1c8f6a4d KLC |
10588 | range_type = GET_LOADSTORE_RANGE (irel->r_addend); |
| 10589 | nds32_elf_final_sda_base (sec->output_section->owner, | |
| 10590 | link_info, &local_sda, FALSE); | |
| 35c08157 | 10591 | |
| 1c8f6a4d KLC |
10592 | switch (ELF32_R_TYPE (hi_irelfn->r_info)) |
| 10593 | { | |
| 10594 | case R_NDS32_HI20_RELA: | |
| 10595 | insn = bfd_getb32 (contents + laddr); | |
| 10596 | access_addr = | |
| 10597 | calculate_memory_address (abfd, hi_irelfn, isymbuf, symtab_hdr); | |
| 10598 | ||
| 10599 | if (range_type == NDS32_LOADSTORE_IMM) | |
| 10600 | { | |
| 10601 | struct elf_link_hash_entry *h = NULL; | |
| 10602 | int indx; | |
| 35c08157 | 10603 | |
| 1c8f6a4d | 10604 | if (ELF32_R_SYM (hi_irelfn->r_info) >= symtab_hdr->sh_info) |
| 35c08157 | 10605 | { |
| 1c8f6a4d KLC |
10606 | indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info; |
| 10607 | h = elf_sym_hashes (abfd)[indx]; | |
| 35c08157 | 10608 | } |
| 35c08157 | 10609 | |
| 1c8f6a4d KLC |
10610 | if ((access_addr < CONSERVATIVE_20BIT) |
| 10611 | && (!h || (h && strcmp (h->root.root.string, FP_BASE_NAME) != 0))) | |
| 35c08157 | 10612 | { |
| 1c8f6a4d KLC |
10613 | eliminate_sethi = 1; |
| 10614 | break; | |
| 35c08157 | 10615 | } |
| 1c8f6a4d KLC |
10616 | |
| 10617 | /* This is avoid to relax symbol address which is fixed | |
| 10618 | relocations. Ex: _stack. */ | |
| 10619 | if (h && bfd_is_abs_section (h->root.u.def.section)) | |
| 10620 | return FALSE; | |
| 10621 | } | |
| 10622 | ||
| 10623 | if (!load_store_relax) | |
| 10624 | return FALSE; | |
| 10625 | ||
| 10626 | /* Case for set gp register. */ | |
| 10627 | if (N32_RT5 (insn) == REG_GP) | |
| 10628 | break; | |
| 10629 | ||
| 10630 | if (range_type == NDS32_LOADSTORE_FLOAT_S | |
| 10631 | || range_type == NDS32_LOADSTORE_FLOAT_S) | |
| 10632 | { | |
| 10633 | range_l = sdata_range[0][0]; | |
| 10634 | range_h = sdata_range[0][1]; | |
| 10635 | } | |
| 10636 | else | |
| 10637 | { | |
| 10638 | range_l = sdata_range[1][0]; | |
| 10639 | range_h = sdata_range[1][1]; | |
| 10640 | } | |
| 10641 | break; | |
| 10642 | ||
| 10643 | case R_NDS32_GOT_HI20: | |
| 10644 | access_addr = | |
| 10645 | calculate_got_memory_address (abfd, link_info, hi_irelfn, symtab_hdr); | |
| 10646 | ||
| 10647 | /* If this symbol is not in .got, the return value will be -1. | |
| 10648 | Since the gp value is set to SDA_BASE but not GLOBAL_OFFSET_TABLE, | |
| 10649 | a negative offset is allowed. */ | |
| 10650 | if ((bfd_signed_vma) (access_addr - local_sda) < CONSERVATIVE_20BIT | |
| 10651 | && (bfd_signed_vma) (access_addr - local_sda) >= -CONSERVATIVE_20BIT) | |
| 10652 | eliminate_sethi = 1; | |
| 10653 | break; | |
| 10654 | ||
| 10655 | case R_NDS32_PLT_GOTREL_HI20: | |
| 10656 | access_addr = calculate_plt_memory_address (abfd, link_info, isymbuf, | |
| 10657 | hi_irelfn, symtab_hdr); | |
| 10658 | ||
| 10659 | if ((bfd_signed_vma) (access_addr - local_sda) < CONSERVATIVE_20BIT | |
| 10660 | && (bfd_signed_vma) (access_addr - local_sda) >= -CONSERVATIVE_20BIT) | |
| 10661 | eliminate_sethi = 1; | |
| 10662 | break; | |
| 10663 | ||
| 10664 | case R_NDS32_GOTOFF_HI20: | |
| 10665 | access_addr = | |
| 10666 | calculate_memory_address (abfd, hi_irelfn, isymbuf, symtab_hdr); | |
| 10667 | ||
| 10668 | if ((bfd_signed_vma) (access_addr - local_sda) < CONSERVATIVE_20BIT | |
| 10669 | && (bfd_signed_vma) (access_addr - local_sda) >= -CONSERVATIVE_20BIT) | |
| 10670 | eliminate_sethi = 1; | |
| 10671 | break; | |
| 10672 | ||
| 10673 | case R_NDS32_GOTPC_HI20: | |
| 10674 | /* The access_addr must consider r_addend of hi_irel. */ | |
| 10675 | access_addr = sec->output_section->vma + sec->output_offset | |
| 10676 | + irel->r_offset + hi_irelfn->r_addend; | |
| 10677 | ||
| 10678 | if ((bfd_signed_vma) (local_sda - access_addr) < CONSERVATIVE_20BIT | |
| 10679 | && (bfd_signed_vma) (local_sda - access_addr) >= -CONSERVATIVE_20BIT) | |
| 10680 | eliminate_sethi = 1; | |
| 10681 | break; | |
| 10682 | ||
| 10683 | case R_NDS32_TLS_LE_HI20: | |
| 10684 | access_addr = | |
| 10685 | calculate_memory_address (abfd, hi_irelfn, isymbuf, symtab_hdr); | |
| 10686 | BFD_ASSERT (elf_hash_table (link_info)->tls_sec != NULL); | |
| 10687 | access_addr -= (elf_hash_table (link_info)->tls_sec->vma + TP_OFFSET); | |
| 10688 | if ((range_type == NDS32_LOADSTORE_IMM) | |
| 10689 | && (bfd_signed_vma) (access_addr) < CONSERVATIVE_20BIT | |
| 10690 | && (bfd_signed_vma) (access_addr) >= -CONSERVATIVE_20BIT) | |
| 10691 | eliminate_sethi = 1; | |
| 10692 | break; | |
| 10693 | ||
| 10694 | default: | |
| 10695 | return FALSE; | |
| 10696 | } | |
| 10697 | ||
| 10698 | /* Delete sethi instruction. */ | |
| 10699 | if (eliminate_sethi == 1 | |
| 10700 | || (local_sda <= access_addr && (access_addr - local_sda) < range_h) | |
| 10701 | || (local_sda > access_addr && (local_sda - access_addr) <= range_l)) | |
| 10702 | { | |
| 10703 | hi_irelfn->r_info = | |
| 10704 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
| 10705 | irel->r_info = | |
| 10706 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 10707 | *insn_len = 0; | |
| 10708 | } | |
| 10709 | return TRUE; | |
| 10710 | } | |
| 10711 | ||
| 10712 | /* Relax LO12 relocation for nds32_elf_relax_section. */ | |
| 10713 | ||
| 10714 | static void | |
| 10715 | nds32_elf_relax_lo12 (struct bfd_link_info *link_info, bfd *abfd, | |
| 10716 | asection *sec, Elf_Internal_Rela *irel, | |
| 10717 | Elf_Internal_Rela *internal_relocs, bfd_byte *contents, | |
| 10718 | Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr) | |
| 10719 | { | |
| 10720 | uint32_t insn; | |
| 10721 | bfd_vma local_sda, laddr; | |
| 10722 | unsigned long reloc; | |
| 10723 | bfd_vma access_addr; | |
| 10724 | bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */ | |
| 10725 | Elf_Internal_Rela *irelfn = NULL, *irelend; | |
| 10726 | struct elf_link_hash_entry *h = NULL; | |
| 10727 | int indx; | |
| 10728 | ||
| 10729 | /* For SDA base relative relaxation. */ | |
| 10730 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
| 10731 | &local_sda, FALSE); | |
| 10732 | ||
| 10733 | irelend = internal_relocs + sec->reloc_count; | |
| 10734 | laddr = irel->r_offset; | |
| 10735 | insn = bfd_getb32 (contents + laddr); | |
| 10736 | ||
| 10737 | if (!is_sda_access_insn (insn) && N32_OP6 (insn) != N32_OP6_ORI) | |
| 10738 | return; | |
| 10739 | ||
| 10740 | access_addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
| 10741 | ||
| 10742 | if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info) | |
| 10743 | { | |
| 10744 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
| 10745 | h = elf_sym_hashes (abfd)[indx]; | |
| 10746 | } | |
| 10747 | ||
| 10748 | if (N32_OP6 (insn) == N32_OP6_ORI && access_addr < CONSERVATIVE_20BIT | |
| 10749 | && (!h || (h && strcmp (h->root.root.string, FP_BASE_NAME) != 0))) | |
| 10750 | { | |
| 10751 | reloc = R_NDS32_20_RELA; | |
| 10752 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
| 10753 | insn = N32_TYPE1 (MOVI, N32_RT5 (insn), 0); | |
| 10754 | bfd_putb32 (insn, contents + laddr); | |
| 10755 | } | |
| 10756 | /* This is avoid to relax symbol address which is fixed | |
| 10757 | relocations. Ex: _stack. */ | |
| 10758 | else if (N32_OP6 (insn) == N32_OP6_ORI | |
| 10759 | && h && bfd_is_abs_section (h->root.u.def.section)) | |
| 10760 | return; | |
| 10761 | else | |
| 10762 | { | |
| 10763 | range_l = sdata_range[1][0]; | |
| 10764 | range_h = sdata_range[1][1]; | |
| 10765 | switch (ELF32_R_TYPE (irel->r_info)) | |
| 10766 | { | |
| 10767 | case R_NDS32_LO12S0_RELA: | |
| 10768 | reloc = R_NDS32_SDA19S0_RELA; | |
| 10769 | break; | |
| 10770 | case R_NDS32_LO12S1_RELA: | |
| 10771 | reloc = R_NDS32_SDA18S1_RELA; | |
| 10772 | break; | |
| 10773 | case R_NDS32_LO12S2_RELA: | |
| 10774 | reloc = R_NDS32_SDA17S2_RELA; | |
| 10775 | break; | |
| 10776 | case R_NDS32_LO12S2_DP_RELA: | |
| 10777 | range_l = sdata_range[0][0]; | |
| 10778 | range_h = sdata_range[0][1]; | |
| 10779 | reloc = R_NDS32_SDA12S2_DP_RELA; | |
| 10780 | break; | |
| 10781 | case R_NDS32_LO12S2_SP_RELA: | |
| 10782 | range_l = sdata_range[0][0]; | |
| 10783 | range_h = sdata_range[0][1]; | |
| 10784 | reloc = R_NDS32_SDA12S2_SP_RELA; | |
| 10785 | break; | |
| 10786 | default: | |
| 10787 | return; | |
| 10788 | } | |
| 10789 | ||
| 10790 | /* There are range_h and range_l because linker has to promise | |
| 10791 | all sections move cross one page together. */ | |
| 10792 | if ((local_sda <= access_addr && (access_addr - local_sda) < range_h) | |
| 10793 | || (local_sda > access_addr && (local_sda - access_addr) <= range_l)) | |
| 10794 | { | |
| 10795 | if (N32_OP6 (insn) == N32_OP6_ORI && N32_RT5 (insn) == REG_GP) | |
| 35c08157 | 10796 | { |
| 1c8f6a4d KLC |
10797 | /* Maybe we should add R_NDS32_INSN16 reloc type here |
| 10798 | or manually do some optimization. sethi can't be | |
| 10799 | eliminated when updating $gp so the relative ori | |
| 10800 | needs to be preserved. */ | |
| 10801 | return; | |
| 35c08157 | 10802 | } |
| 1c8f6a4d KLC |
10803 | if (!turn_insn_to_sda_access (insn, ELF32_R_TYPE (irel->r_info), |
| 10804 | &insn)) | |
| 10805 | return; | |
| 10806 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
| 10807 | bfd_putb32 (insn, contents + laddr); | |
| 10808 | ||
| 10809 | irelfn = find_relocs_at_address (irel, internal_relocs, irelend, | |
| 10810 | R_NDS32_INSN16); | |
| 10811 | /* SDA17 must keep INSN16 for converting fp_as_gp. */ | |
| 10812 | if (irelfn != irelend && reloc != R_NDS32_SDA17S2_RELA) | |
| 10813 | irelfn->r_info = | |
| 10814 | ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_NDS32_NONE); | |
| 10815 | ||
| 35c08157 | 10816 | } |
| 1c8f6a4d KLC |
10817 | } |
| 10818 | return; | |
| 10819 | } | |
| 35c08157 | 10820 | |
| 1c8f6a4d KLC |
10821 | /* Relax low part of PIC instruction pattern. */ |
| 10822 | ||
| 10823 | static void | |
| 10824 | nds32_elf_relax_piclo12 (struct bfd_link_info *link_info, bfd *abfd, | |
| 10825 | asection *sec, Elf_Internal_Rela *irel, | |
| 10826 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 10827 | Elf_Internal_Shdr *symtab_hdr) | |
| 10828 | { | |
| 10829 | uint32_t insn; | |
| 10830 | bfd_vma local_sda, laddr; | |
| 10831 | bfd_signed_vma foff; | |
| 10832 | unsigned long reloc; | |
| 10833 | ||
| 10834 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
| 10835 | &local_sda, FALSE); | |
| 10836 | laddr = irel->r_offset; | |
| 10837 | insn = bfd_getb32 (contents + laddr); | |
| 10838 | ||
| 10839 | if (N32_OP6 (insn) != N32_OP6_ORI) | |
| 10840 | return; | |
| 10841 | ||
| 10842 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_GOT_LO12) | |
| 10843 | { | |
| 10844 | foff = calculate_got_memory_address (abfd, link_info, irel, | |
| 10845 | symtab_hdr) - local_sda; | |
| 10846 | reloc = R_NDS32_GOT20; | |
| 10847 | } | |
| 10848 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_PLT_GOTREL_LO12) | |
| 10849 | { | |
| 10850 | foff = calculate_plt_memory_address (abfd, link_info, isymbuf, irel, | |
| 10851 | symtab_hdr) - local_sda; | |
| 10852 | reloc = R_NDS32_PLT_GOTREL_LO20; | |
| 10853 | } | |
| 10854 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTOFF_LO12) | |
| 10855 | { | |
| 10856 | foff = calculate_memory_address (abfd, irel, isymbuf, | |
| 10857 | symtab_hdr) - local_sda; | |
| 10858 | reloc = R_NDS32_GOTOFF; | |
| 10859 | } | |
| 10860 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTPC_LO12) | |
| 10861 | { | |
| 10862 | foff = local_sda - sec->output_section->vma + sec->output_offset | |
| 10863 | + irel->r_offset + irel->r_addend; | |
| 10864 | reloc = R_NDS32_GOTPC20; | |
| 10865 | } | |
| 10866 | else | |
| 10867 | return; | |
| 10868 | ||
| 10869 | if ((foff < CONSERVATIVE_20BIT) && (foff >= -CONSERVATIVE_20BIT)) | |
| 10870 | { | |
| 10871 | /* Turn into MOVI. */ | |
| 10872 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
| 10873 | insn = N32_TYPE1 (MOVI, N32_RT5 (insn), 0); | |
| 10874 | bfd_putb32 (insn, contents + laddr); | |
| 10875 | } | |
| 10876 | } | |
| 10877 | ||
| 10878 | /* Relax low part of LE TLS instruction pattern. */ | |
| 10879 | ||
| 10880 | static void | |
| 10881 | nds32_elf_relax_letlslo12 (struct bfd_link_info *link_info, bfd *abfd, | |
| 10882 | Elf_Internal_Rela *irel, | |
| 10883 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 10884 | Elf_Internal_Shdr *symtab_hdr) | |
| 10885 | { | |
| 10886 | uint32_t insn; | |
| 10887 | bfd_vma laddr; | |
| 10888 | bfd_signed_vma foff; | |
| 10889 | unsigned long reloc; | |
| 10890 | ||
| 10891 | laddr = irel->r_offset; | |
| 10892 | foff = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
| 10893 | BFD_ASSERT (elf_hash_table (link_info)->tls_sec != NULL); | |
| 10894 | foff -= (elf_hash_table (link_info)->tls_sec->vma + TP_OFFSET); | |
| 10895 | insn = bfd_getb32 (contents + laddr); | |
| 10896 | ||
| 10897 | if ( (bfd_signed_vma) (foff) < CONSERVATIVE_20BIT | |
| 10898 | && (bfd_signed_vma) (foff) >= -CONSERVATIVE_20BIT) | |
| 10899 | { | |
| 10900 | /* Pattern sethi-ori transform to movi. */ | |
| 10901 | reloc = R_NDS32_TLS_LE_20; | |
| 10902 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
| 10903 | insn = N32_TYPE1 (MOVI, N32_RT5 (insn), 0); | |
| 10904 | bfd_putb32 (insn, contents + laddr); | |
| 10905 | } | |
| 10906 | } | |
| 10907 | ||
| 10908 | /* Relax LE TLS calculate address instruction pattern. */ | |
| 10909 | ||
| 10910 | static void | |
| 10911 | nds32_elf_relax_letlsadd (struct bfd_link_info *link_info, bfd *abfd, | |
| 10912 | asection *sec, Elf_Internal_Rela *irel, | |
| 10913 | Elf_Internal_Rela *internal_relocs, | |
| 10914 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 10915 | Elf_Internal_Shdr *symtab_hdr, bfd_boolean *again) | |
| 10916 | { | |
| 10917 | /* Local TLS non-pic | |
| 10918 | sethi ta, hi20(symbol@tpoff) ; TLS_LE_HI20 | |
| 10919 | ori ta, ta, lo12(symbol@tpoff) ; TLS_LE_LO12 | |
| 10920 | add ra, ta, tp ; TLS_LE_ADD */ | |
| 10921 | ||
| 10922 | uint32_t insn; | |
| 10923 | bfd_vma laddr; | |
| 10924 | bfd_signed_vma foff; | |
| 10925 | Elf_Internal_Rela *i1_irelfn, *irelend; | |
| 10926 | ||
| 10927 | irelend = internal_relocs + sec->reloc_count; | |
| 10928 | laddr = irel->r_offset; | |
| 10929 | insn = bfd_getb32 (contents + laddr); | |
| 10930 | i1_irelfn = find_relocs_at_address (irel, internal_relocs, irelend, | |
| 10931 | R_NDS32_PTR_RESOLVED); | |
| 10932 | foff = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
| 10933 | BFD_ASSERT (elf_hash_table (link_info)->tls_sec != NULL); | |
| 10934 | foff -= (elf_hash_table (link_info)->tls_sec->vma + TP_OFFSET); | |
| 10935 | ||
| 10936 | /* The range is +/-16k. */ | |
| 10937 | if ((bfd_signed_vma) (foff) < CONSERVATIVE_15BIT | |
| 10938 | && (bfd_signed_vma) (foff) >= -CONSERVATIVE_15BIT) | |
| 10939 | { | |
| 10940 | /* Transform add to addi. */ | |
| 10941 | insn = N32_TYPE2 (ADDI, N32_RT5 (insn), N32_RB5 (insn), 0); | |
| 10942 | irel->r_info = | |
| 10943 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_TLS_LE_15S0); | |
| 10944 | ||
| 10945 | bfd_putb32 (insn, contents + laddr); | |
| 10946 | if (i1_irelfn != irelend) | |
| 10947 | { | |
| 10948 | i1_irelfn->r_addend |= 1; | |
| 10949 | *again = TRUE; | |
| 10950 | } | |
| 10951 | } | |
| 10952 | } | |
| 10953 | ||
| 10954 | /* Relax LE TLS load store instruction pattern. */ | |
| 10955 | ||
| 10956 | static void | |
| 10957 | nds32_elf_relax_letlsls (struct bfd_link_info *link_info, bfd *abfd, | |
| 10958 | asection *sec, Elf_Internal_Rela *irel, | |
| 10959 | Elf_Internal_Rela *internal_relocs, | |
| 10960 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 10961 | Elf_Internal_Shdr *symtab_hdr, bfd_boolean *again) | |
| 10962 | { | |
| 10963 | ||
| 10964 | uint32_t insn; | |
| 10965 | bfd_vma laddr; | |
| 10966 | bfd_signed_vma foff; | |
| 10967 | Elf_Internal_Rela *i1_irelfn, *irelend; | |
| 10968 | int success = 0; | |
| 10969 | ||
| 10970 | irelend = internal_relocs + sec->reloc_count; | |
| 10971 | laddr = irel->r_offset; | |
| 10972 | insn = bfd_getb32 (contents + laddr); | |
| 10973 | i1_irelfn = find_relocs_at_address (irel, internal_relocs, irelend, | |
| 10974 | R_NDS32_PTR_RESOLVED); | |
| 10975 | foff = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
| 10976 | BFD_ASSERT (elf_hash_table (link_info)->tls_sec != NULL); | |
| 10977 | foff -= (elf_hash_table (link_info)->tls_sec->vma + TP_OFFSET); | |
| 10978 | ||
| 10979 | switch ((N32_OP6 (insn) << 8) | (insn & 0xff)) | |
| 10980 | { | |
| 10981 | case (N32_OP6_MEM << 8) | N32_MEM_LB: | |
| 10982 | case (N32_OP6_MEM << 8) | N32_MEM_SB: | |
| 10983 | case (N32_OP6_MEM << 8) | N32_MEM_LBS: | |
| 10984 | /* The range is +/-16k. */ | |
| 10985 | if ((bfd_signed_vma) (foff) < CONSERVATIVE_15BIT | |
| 10986 | && (bfd_signed_vma) (foff) >= -CONSERVATIVE_15BIT) | |
| 10987 | { | |
| 10988 | insn = | |
| 10989 | ((insn & 0xff) << 25) | (insn & 0x1f00000) | ((insn & 0x7c00) << 5); | |
| 10990 | irel->r_info = | |
| 10991 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_TLS_LE_15S0); | |
| 10992 | success = 1; | |
| 10993 | break; | |
| 10994 | } | |
| 1a0670f3 | 10995 | /* Fall through. */ |
| 1c8f6a4d KLC |
10996 | case (N32_OP6_MEM << 8) | N32_MEM_LH: |
| 10997 | case (N32_OP6_MEM << 8) | N32_MEM_SH: | |
| 10998 | case (N32_OP6_MEM << 8) | N32_MEM_LHS: | |
| 10999 | /* The range is +/-32k. */ | |
| 11000 | if ((bfd_signed_vma) (foff) < CONSERVATIVE_15BIT_S1 | |
| 11001 | && (bfd_signed_vma) (foff) >= -CONSERVATIVE_15BIT_S1) | |
| 35c08157 | 11002 | { |
| 1c8f6a4d KLC |
11003 | insn = |
| 11004 | ((insn & 0xff) << 25) | (insn & 0x1f00000) | ((insn & 0x7c00) << 5); | |
| 11005 | irel->r_info = | |
| 11006 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_TLS_LE_15S1); | |
| 11007 | success = 1; | |
| 11008 | break; | |
| 11009 | } | |
| 1a0670f3 | 11010 | /* Fall through. */ |
| 1c8f6a4d KLC |
11011 | case (N32_OP6_MEM << 8) | N32_MEM_LW: |
| 11012 | case (N32_OP6_MEM << 8) | N32_MEM_SW: | |
| 11013 | /* The range is +/-64k. */ | |
| 11014 | if ((bfd_signed_vma) (foff) < CONSERVATIVE_15BIT_S2 | |
| 11015 | && (bfd_signed_vma) (foff) >= -CONSERVATIVE_15BIT_S2) | |
| 11016 | { | |
| 11017 | insn = | |
| 11018 | ((insn & 0xff) << 25) | (insn & 0x1f00000) | ((insn & 0x7c00) << 5); | |
| 11019 | irel->r_info = | |
| 11020 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_TLS_LE_15S2); | |
| 11021 | success = 1; | |
| 11022 | break; | |
| 11023 | } | |
| 1a0670f3 | 11024 | /* Fall through. */ |
| 1c8f6a4d KLC |
11025 | default: |
| 11026 | break; | |
| 11027 | } | |
| 35c08157 | 11028 | |
| 1c8f6a4d KLC |
11029 | if (success) |
| 11030 | { | |
| 11031 | bfd_putb32 (insn, contents + laddr); | |
| 11032 | if (i1_irelfn != irelend) | |
| 11033 | { | |
| 11034 | i1_irelfn->r_addend |= 1; | |
| 11035 | *again = TRUE; | |
| 11036 | } | |
| 11037 | } | |
| 11038 | } | |
| 35c08157 | 11039 | |
| 1c8f6a4d | 11040 | /* Relax PTR relocation for nds32_elf_relax_section. */ |
| 35c08157 | 11041 | |
| 1c8f6a4d KLC |
11042 | static bfd_boolean |
| 11043 | nds32_elf_relax_ptr (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
| 11044 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
| 11045 | int *seq_len, bfd_byte *contents) | |
| 11046 | { | |
| 11047 | Elf_Internal_Rela *ptr_irel, *irelend, *count_irel, *re_irel; | |
| 35c08157 | 11048 | |
| 1c8f6a4d | 11049 | irelend = internal_relocs + sec->reloc_count; |
| 35c08157 | 11050 | |
| 1c8f6a4d KLC |
11051 | re_irel = |
| 11052 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
| 11053 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
| 35c08157 | 11054 | |
| 1c8f6a4d KLC |
11055 | if (re_irel == irelend) |
| 11056 | { | |
| 695344c0 | 11057 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_PTR", |
| d42c267e | 11058 | irel->r_offset); |
| 1c8f6a4d KLC |
11059 | return FALSE; |
| 11060 | } | |
| 35c08157 | 11061 | |
| 1c8f6a4d KLC |
11062 | if (re_irel->r_addend != 1) |
| 11063 | return FALSE; | |
| 35c08157 | 11064 | |
| 1c8f6a4d KLC |
11065 | /* Pointed target is relaxed and no longer needs this void *, |
| 11066 | change the type to NONE. */ | |
| 11067 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 35c08157 | 11068 | |
| 1c8f6a4d KLC |
11069 | /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does |
| 11070 | not exist, it means only count 1 and remove it directly. */ | |
| 11071 | /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */ | |
| 11072 | count_irel = find_relocs_at_address (irel, internal_relocs, irelend, | |
| 11073 | R_NDS32_PTR_COUNT); | |
| 11074 | ptr_irel = find_relocs_at_address (irel, internal_relocs, irelend, | |
| 11075 | R_NDS32_PTR); | |
| 11076 | if (count_irel != irelend) | |
| 11077 | { | |
| 11078 | if (--count_irel->r_addend > 0) | |
| 11079 | return FALSE; | |
| 11080 | } | |
| 11081 | ||
| 11082 | if (ptr_irel != irelend) | |
| 11083 | return FALSE; | |
| 11084 | ||
| 11085 | /* If the PTR_COUNT is already 0, remove current instruction. */ | |
| 11086 | *seq_len = nds32_elf_insn_size (abfd, contents, irel->r_offset); | |
| 11087 | *insn_len = 0; | |
| 11088 | return TRUE; | |
| 11089 | } | |
| 11090 | ||
| 11091 | /* Relax PLT_GOT_SUFF relocation for nds32_elf_relax_section. */ | |
| 11092 | ||
| 11093 | static void | |
| 11094 | nds32_elf_relax_pltgot_suff (struct bfd_link_info *link_info, bfd *abfd, | |
| 11095 | asection *sec, Elf_Internal_Rela *irel, | |
| 11096 | Elf_Internal_Rela *internal_relocs, | |
| 11097 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 11098 | Elf_Internal_Shdr *symtab_hdr, bfd_boolean *again) | |
| 11099 | { | |
| 11100 | uint32_t insn; | |
| 11101 | bfd_signed_vma foff; | |
| 11102 | Elf_Internal_Rela *i1_irelfn, *irelend; | |
| 11103 | bfd_vma local_sda, laddr; | |
| 11104 | ||
| 11105 | irelend = internal_relocs + sec->reloc_count; | |
| 11106 | laddr = irel->r_offset; | |
| 11107 | insn = bfd_getb32 (contents + laddr); | |
| 11108 | ||
| 11109 | /* FIXME: It's a little trouble to turn JRAL5 to JAL since | |
| 11110 | we need additional space. It might be help if we could | |
| 11111 | borrow some space from instructions to be eliminated | |
| 11112 | such as sethi, ori, add. */ | |
| 11113 | if (insn & 0x80000000) | |
| 11114 | return; | |
| 11115 | ||
| 11116 | if (nds32_elf_check_dup_relocs | |
| 11117 | (irel, internal_relocs, irelend, R_NDS32_PLT_GOT_SUFF)) | |
| 11118 | return; | |
| 11119 | ||
| 11120 | i1_irelfn = | |
| 11121 | find_relocs_at_address (irel, internal_relocs, irelend, | |
| 11122 | R_NDS32_PTR_RESOLVED); | |
| 11123 | ||
| 11124 | /* FIXIT 090606 | |
| 11125 | The boundary should be reduced since the .plt section hasn't | |
| 11126 | been created and the address of specific entry is still unknown | |
| 11127 | Maybe the range between the function call and the begin of the | |
| 11128 | .text section can be used to decide if the .plt is in the range | |
| 11129 | of function call. */ | |
| 11130 | ||
| 11131 | if (N32_OP6 (insn) == N32_OP6_ALU1 | |
| 11132 | && N32_SUB5 (insn) == N32_ALU1_ADD) | |
| 11133 | { | |
| 11134 | /* Get the value of the symbol referred to by the reloc. */ | |
| 11135 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
| 11136 | &local_sda, FALSE); | |
| 11137 | foff = (bfd_signed_vma) (calculate_plt_memory_address | |
| 11138 | (abfd, link_info, isymbuf, irel, | |
| 11139 | symtab_hdr) - local_sda); | |
| 11140 | /* This condition only happened when symbol is undefined. */ | |
| 11141 | if (foff == 0) | |
| 11142 | return; | |
| 11143 | ||
| 11144 | if (foff < -CONSERVATIVE_19BIT || foff >= CONSERVATIVE_19BIT) | |
| 11145 | return; | |
| 11146 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
| 11147 | R_NDS32_PLT_GOTREL_LO19); | |
| 11148 | /* addi.gp */ | |
| 4ec521f2 | 11149 | insn = N32_TYPE1 (SBGP, N32_RT5 (insn), N32_BIT (19)); |
| 1c8f6a4d KLC |
11150 | } |
| 11151 | else if (N32_OP6 (insn) == N32_OP6_JREG | |
| 11152 | && N32_SUB5 (insn) == N32_JREG_JRAL) | |
| 11153 | { | |
| 11154 | /* Get the value of the symbol referred to by the reloc. */ | |
| 11155 | foff = | |
| 11156 | calculate_plt_offset (abfd, sec, link_info, isymbuf, irel, symtab_hdr); | |
| 11157 | /* This condition only happened when symbol is undefined. */ | |
| 11158 | if (foff == 0) | |
| 11159 | return; | |
| 11160 | if (foff < -CONSERVATIVE_24BIT_S1 || foff >= CONSERVATIVE_24BIT_S1) | |
| 11161 | return; | |
| 11162 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_25_PLTREL); | |
| 11163 | insn = INSN_JAL; | |
| 11164 | } | |
| 11165 | else | |
| 11166 | return; | |
| 11167 | ||
| 11168 | bfd_putb32 (insn, contents + laddr); | |
| 11169 | if (i1_irelfn != irelend) | |
| 11170 | { | |
| 11171 | i1_irelfn->r_addend |= 1; | |
| 11172 | *again = TRUE; | |
| 11173 | } | |
| 11174 | } | |
| 11175 | ||
| 11176 | /* Relax GOT_SUFF relocation for nds32_elf_relax_section. */ | |
| 11177 | ||
| 11178 | static void | |
| 11179 | nds32_elf_relax_got_suff (struct bfd_link_info *link_info, bfd *abfd, | |
| 11180 | asection *sec, Elf_Internal_Rela *irel, | |
| 11181 | Elf_Internal_Rela *internal_relocs, | |
| 11182 | bfd_byte *contents, Elf_Internal_Shdr *symtab_hdr, | |
| 11183 | bfd_boolean *again) | |
| 11184 | { | |
| 11185 | uint32_t insn; | |
| 11186 | bfd_signed_vma foff; | |
| 11187 | Elf_Internal_Rela *i1_irelfn, *irelend; | |
| 11188 | bfd_vma local_sda, laddr; | |
| 11189 | ||
| 11190 | irelend = internal_relocs + sec->reloc_count; | |
| 11191 | laddr = irel->r_offset; | |
| 11192 | insn = bfd_getb32 (contents + laddr); | |
| 11193 | if (insn & 0x80000000) | |
| 11194 | return; | |
| 11195 | ||
| 11196 | if (nds32_elf_check_dup_relocs | |
| 11197 | (irel, internal_relocs, irelend, R_NDS32_GOT_SUFF)) | |
| 11198 | return; | |
| 11199 | ||
| 11200 | i1_irelfn = find_relocs_at_address (irel, internal_relocs, irelend, | |
| 11201 | R_NDS32_PTR_RESOLVED); | |
| 11202 | ||
| 11203 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
| 11204 | &local_sda, FALSE); | |
| 11205 | foff = calculate_got_memory_address (abfd, link_info, irel, | |
| 11206 | symtab_hdr) - local_sda; | |
| 11207 | ||
| 11208 | if (foff < CONSERVATIVE_19BIT && foff >= -CONSERVATIVE_19BIT) | |
| 11209 | { | |
| 11210 | /* Turn LW to LWI.GP. Change relocation type to R_NDS32_GOT_REL. */ | |
| 11211 | insn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (6, 17, 3)); | |
| 11212 | irel->r_info = | |
| 11213 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_GOT17S2_RELA); | |
| 11214 | bfd_putb32 (insn, contents + laddr); | |
| 11215 | if (i1_irelfn != irelend) | |
| 11216 | { | |
| 11217 | i1_irelfn->r_addend |= 1; | |
| 11218 | *again = TRUE; | |
| 11219 | } | |
| 11220 | } | |
| 11221 | } | |
| 11222 | ||
| 11223 | /* Relax PLT_GOT_SUFF relocation for nds32_elf_relax_section. */ | |
| 11224 | ||
| 11225 | static void | |
| 11226 | nds32_elf_relax_gotoff_suff (struct bfd_link_info *link_info, bfd *abfd, | |
| 11227 | asection *sec, Elf_Internal_Rela *irel, | |
| 11228 | Elf_Internal_Rela *internal_relocs, | |
| 11229 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
| 11230 | Elf_Internal_Shdr *symtab_hdr, bfd_boolean *again) | |
| 11231 | { | |
| 11232 | int opc_insn_gotoff; | |
| 11233 | uint32_t insn; | |
| 11234 | bfd_signed_vma foff; | |
| 11235 | Elf_Internal_Rela *i1_irelfn, *i2_irelfn, *irelend; | |
| 11236 | bfd_vma local_sda, laddr; | |
| 11237 | ||
| 11238 | irelend = internal_relocs + sec->reloc_count; | |
| 11239 | laddr = irel->r_offset; | |
| 11240 | insn = bfd_getb32 (contents + laddr); | |
| 11241 | ||
| 11242 | if (insn & 0x80000000) | |
| 11243 | return; | |
| 11244 | ||
| 11245 | if (nds32_elf_check_dup_relocs | |
| 11246 | (irel, internal_relocs, irelend, R_NDS32_GOTOFF_SUFF)) | |
| 11247 | return; | |
| 11248 | ||
| 11249 | i1_irelfn = find_relocs_at_address (irel, internal_relocs, irelend, | |
| 11250 | R_NDS32_PTR_RESOLVED); | |
| 11251 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
| 11252 | &local_sda, FALSE); | |
| 11253 | foff = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
| 11254 | foff = foff - local_sda; | |
| 11255 | ||
| 11256 | if (foff >= CONSERVATIVE_19BIT || foff < -CONSERVATIVE_19BIT) | |
| 11257 | return; | |
| 11258 | ||
| 11259 | /* Concatenate opcode and sub-opcode for switch case. | |
| 11260 | It may be MEM or ALU1. */ | |
| 11261 | opc_insn_gotoff = (N32_OP6 (insn) << 8) | (insn & 0xff); | |
| 11262 | switch (opc_insn_gotoff) | |
| 11263 | { | |
| 11264 | case (N32_OP6_MEM << 8) | N32_MEM_LW: | |
| 11265 | /* 4-byte aligned. */ | |
| 11266 | insn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (6, 17, 3)); | |
| 11267 | irel->r_info = | |
| 11268 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA17S2_RELA); | |
| 11269 | break; | |
| 11270 | case (N32_OP6_MEM << 8) | N32_MEM_SW: | |
| 11271 | insn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (7, 17, 3)); | |
| 11272 | irel->r_info = | |
| 11273 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA17S2_RELA); | |
| 11274 | break; | |
| 11275 | case (N32_OP6_MEM << 8) | N32_MEM_LH: | |
| 11276 | /* 2-byte aligned. */ | |
| 11277 | insn = N32_TYPE1 (HWGP, N32_RT5 (insn), 0); | |
| 11278 | irel->r_info = | |
| 11279 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA18S1_RELA); | |
| 11280 | break; | |
| 11281 | case (N32_OP6_MEM << 8) | N32_MEM_LHS: | |
| 4ec521f2 | 11282 | insn = N32_TYPE1 (HWGP, N32_RT5 (insn), N32_BIT (18)); |
| 1c8f6a4d KLC |
11283 | irel->r_info = |
| 11284 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA18S1_RELA); | |
| 11285 | break; | |
| 11286 | case (N32_OP6_MEM << 8) | N32_MEM_SH: | |
| 4ec521f2 | 11287 | insn = N32_TYPE1 (HWGP, N32_RT5 (insn), N32_BIT (19)); |
| 1c8f6a4d KLC |
11288 | irel->r_info = |
| 11289 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA18S1_RELA); | |
| 11290 | break; | |
| 11291 | case (N32_OP6_MEM << 8) | N32_MEM_LB: | |
| 11292 | /* 1-byte aligned. */ | |
| 11293 | insn = N32_TYPE1 (LBGP, N32_RT5 (insn), 0); | |
| 11294 | irel->r_info = | |
| 11295 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA19S0_RELA); | |
| 11296 | break; | |
| 11297 | case (N32_OP6_MEM << 8) | N32_MEM_LBS: | |
| 4ec521f2 | 11298 | insn = N32_TYPE1 (LBGP, N32_RT5 (insn), N32_BIT (19)); |
| 1c8f6a4d KLC |
11299 | irel->r_info = |
| 11300 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA19S0_RELA); | |
| 11301 | break; | |
| 11302 | case (N32_OP6_MEM << 8) | N32_MEM_SB: | |
| 11303 | insn = N32_TYPE1 (SBGP, N32_RT5 (insn), 0); | |
| 11304 | irel->r_info = | |
| 11305 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA19S0_RELA); | |
| 11306 | break; | |
| 11307 | case (N32_OP6_ALU1 << 8) | N32_ALU1_ADD: | |
| 4ec521f2 | 11308 | insn = N32_TYPE1 (SBGP, N32_RT5 (insn), N32_BIT (19)); |
| 1c8f6a4d KLC |
11309 | irel->r_info = |
| 11310 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_SDA19S0_RELA); | |
| 11311 | break; | |
| 11312 | default: | |
| 11313 | return; | |
| 11314 | } | |
| 11315 | ||
| 11316 | bfd_putb32 (insn, contents + laddr); | |
| 11317 | if (i1_irelfn != irelend) | |
| 11318 | { | |
| 11319 | i1_irelfn->r_addend |= 1; | |
| 11320 | *again = TRUE; | |
| 11321 | } | |
| 11322 | if ((i2_irelfn = find_relocs_at_address (irel, internal_relocs, irelend, | |
| 11323 | R_NDS32_INSN16)) != irelend) | |
| 11324 | i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 11325 | ||
| 11326 | } | |
| 11327 | ||
| 11328 | static bfd_boolean | |
| 11329 | nds32_relax_adjust_label (bfd *abfd, asection *sec, | |
| 11330 | Elf_Internal_Rela *internal_relocs, | |
| 11331 | bfd_byte *contents, | |
| 11332 | nds32_elf_blank_t **relax_blank_list, | |
| 11333 | int optimize, int opt_size) | |
| 11334 | { | |
| 11335 | /* This code block is used to adjust 4-byte alignment by relax a pair | |
| 11336 | of instruction a time. | |
| 11337 | ||
| 11338 | It recognizes three types of relocations. | |
| de194d85 | 11339 | 1. R_NDS32_LABEL - a alignment. |
| 1c8f6a4d KLC |
11340 | 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit. |
| 11341 | 3. is_16bit_NOP () - remove a 16-bit instruction. */ | |
| 11342 | ||
| de194d85 YC |
11343 | /* TODO: It seems currently implementation only support 4-byte alignment. |
| 11344 | We should handle any-alignment. */ | |
| 1c8f6a4d KLC |
11345 | |
| 11346 | Elf_Internal_Rela *insn_rel = NULL, *label_rel = NULL, *irel; | |
| 11347 | Elf_Internal_Rela *tmp_rel, *tmp2_rel = NULL; | |
| 11348 | Elf_Internal_Rela rel_temp; | |
| 11349 | Elf_Internal_Rela *irelend; | |
| 11350 | bfd_vma address; | |
| 11351 | uint16_t insn16; | |
| 11352 | ||
| 11353 | /* Checking for branch relaxation relies on the relocations to | |
| 11354 | be sorted on 'r_offset'. This is not guaranteed so we must sort. */ | |
| 11355 | nds32_insertion_sort (internal_relocs, sec->reloc_count, | |
| 11356 | sizeof (Elf_Internal_Rela), compar_reloc); | |
| 11357 | ||
| 11358 | irelend = internal_relocs + sec->reloc_count; | |
| 11359 | ||
| 11360 | /* Force R_NDS32_LABEL before R_NDS32_INSN16. */ | |
| 11361 | /* FIXME: Can we generate the right order in assembler? | |
| 11362 | So we don't have to swapping them here. */ | |
| 11363 | ||
| 11364 | for (label_rel = internal_relocs, insn_rel = internal_relocs; | |
| 11365 | label_rel < irelend; label_rel++) | |
| 11366 | { | |
| 11367 | if (ELF32_R_TYPE (label_rel->r_info) != R_NDS32_LABEL) | |
| 11368 | continue; | |
| 11369 | ||
| 11370 | /* Find the first reloc has the same offset with label_rel. */ | |
| 11371 | while (insn_rel < irelend && insn_rel->r_offset < label_rel->r_offset) | |
| 11372 | insn_rel++; | |
| 11373 | ||
| 11374 | for (;insn_rel < irelend && insn_rel->r_offset == label_rel->r_offset; | |
| 11375 | insn_rel++) | |
| 11376 | /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same | |
| 11377 | address. */ | |
| 11378 | if (ELF32_R_TYPE (insn_rel->r_info) == R_NDS32_INSN16) | |
| 11379 | break; | |
| 11380 | ||
| 11381 | if (insn_rel < irelend && insn_rel->r_offset == label_rel->r_offset | |
| 11382 | && insn_rel < label_rel) | |
| 11383 | { | |
| 11384 | /* Swap the two reloc if the R_NDS32_INSN16 is | |
| 11385 | before R_NDS32_LABEL. */ | |
| 11386 | memcpy (&rel_temp, insn_rel, sizeof (Elf_Internal_Rela)); | |
| 11387 | memcpy (insn_rel, label_rel, sizeof (Elf_Internal_Rela)); | |
| 11388 | memcpy (label_rel, &rel_temp, sizeof (Elf_Internal_Rela)); | |
| 11389 | } | |
| 11390 | } | |
| 11391 | ||
| 11392 | label_rel = NULL; | |
| 11393 | insn_rel = NULL; | |
| 11394 | /* If there were a sequence of R_NDS32_LABEL end up with .align 2 | |
| 11395 | or higher, remove other R_NDS32_LABEL with lower alignment. | |
| 11396 | If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted, | |
| 11397 | then the R_NDS32_LABEL sequence is broke. */ | |
| 11398 | for (tmp_rel = internal_relocs; tmp_rel < irelend; tmp_rel++) | |
| 11399 | { | |
| 11400 | if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_LABEL) | |
| 11401 | { | |
| 11402 | if (label_rel == NULL) | |
| 11403 | { | |
| 11404 | if (tmp_rel->r_addend < 2) | |
| 11405 | label_rel = tmp_rel; | |
| 11406 | continue; | |
| 11407 | } | |
| 11408 | else if (tmp_rel->r_addend > 1) | |
| 11409 | { | |
| 11410 | /* Remove all LABEL relocation from label_rel to tmp_rel | |
| 11411 | including relocations with same offset as tmp_rel. */ | |
| 11412 | for (tmp2_rel = label_rel; tmp2_rel < tmp_rel | |
| 11413 | || tmp2_rel->r_offset == tmp_rel->r_offset; tmp2_rel++) | |
| 11414 | { | |
| 11415 | if (ELF32_R_TYPE (tmp2_rel->r_info) == R_NDS32_LABEL | |
| 11416 | && tmp2_rel->r_addend < 2) | |
| 11417 | tmp2_rel->r_info = | |
| 11418 | ELF32_R_INFO (ELF32_R_SYM (tmp2_rel->r_info), | |
| 11419 | R_NDS32_NONE); | |
| 11420 | } | |
| 11421 | label_rel = NULL; | |
| 11422 | } | |
| 11423 | } | |
| 11424 | else if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_INSN16 && label_rel) | |
| 11425 | { | |
| 11426 | /* A new INSN16 which can be converted, so clear label_rel. */ | |
| 11427 | if (is_convert_32_to_16 (abfd, sec, tmp_rel, internal_relocs, | |
| 11428 | irelend, &insn16) | |
| 11429 | || is_16bit_NOP (abfd, sec, tmp_rel)) | |
| 11430 | label_rel = NULL; | |
| 11431 | } | |
| 11432 | } | |
| 11433 | ||
| 11434 | label_rel = NULL; | |
| 11435 | insn_rel = NULL; | |
| 11436 | /* Optimized for speed and nothing has not been relaxed. | |
| 11437 | It's time to align labels. | |
| 11438 | We may convert a 16-bit instruction right before a label to | |
| 11439 | 32-bit, in order to align the label if necessary | |
| 11440 | all reloc entries has been sorted by r_offset. */ | |
| 11441 | for (irel = internal_relocs; irel < irelend; irel++) | |
| 11442 | { | |
| 11443 | if (ELF32_R_TYPE (irel->r_info) != R_NDS32_INSN16 | |
| 11444 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_LABEL) | |
| 11445 | continue; | |
| 11446 | ||
| 11447 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_INSN16) | |
| 11448 | { | |
| 11449 | /* A new INSN16 found, resize the old one. */ | |
| 11450 | if (is_convert_32_to_16 | |
| 11451 | (abfd, sec, irel, internal_relocs, irelend, &insn16) | |
| 11452 | || is_16bit_NOP (abfd, sec, irel)) | |
| 11453 | { | |
| 11454 | if (insn_rel) | |
| 11455 | { | |
| 11456 | /* Previous INSN16 reloc exists, reduce its | |
| 11457 | size to 16-bit. */ | |
| 11458 | if (is_convert_32_to_16 (abfd, sec, insn_rel, internal_relocs, | |
| 11459 | irelend, &insn16)) | |
| 35c08157 | 11460 | { |
| 1c8f6a4d KLC |
11461 | nds32_elf_write_16 (abfd, contents, insn_rel, |
| 11462 | internal_relocs, irelend, insn16); | |
| 11463 | ||
| 11464 | if (!insert_nds32_elf_blank_recalc_total | |
| 11465 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
| 11466 | return FALSE; | |
| 11467 | } | |
| 11468 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
| 11469 | { | |
| 11470 | if (!insert_nds32_elf_blank_recalc_total | |
| 11471 | (relax_blank_list, insn_rel->r_offset, 2)) | |
| 11472 | return FALSE; | |
| 11473 | } | |
| 11474 | insn_rel->r_info = | |
| 11475 | ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), R_NDS32_NONE); | |
| 11476 | } | |
| 11477 | /* Save the new one for later use. */ | |
| 11478 | insn_rel = irel; | |
| 11479 | } | |
| 11480 | else | |
| 11481 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
| 11482 | R_NDS32_NONE); | |
| 11483 | } | |
| 11484 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL) | |
| 11485 | { | |
| 11486 | /* Search for label. */ | |
| 11487 | int force_relax = 0; | |
| 11488 | ||
| 11489 | /* Label on 16-bit instruction or optimization | |
| 11490 | needless, just reset this reloc. */ | |
| 11491 | insn16 = bfd_getb16 (contents + irel->r_offset); | |
| 11492 | if ((irel->r_addend & 0x1f) < 2 && (!optimize || (insn16 & 0x8000))) | |
| 11493 | { | |
| 11494 | irel->r_info = | |
| 11495 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
| 11496 | continue; | |
| 11497 | } | |
| 11498 | ||
| 11499 | address = | |
| 11500 | irel->r_offset - get_nds32_elf_blank_total (relax_blank_list, | |
| 11501 | irel->r_offset, 1); | |
| 11502 | ||
| 11503 | if (!insn_rel) | |
| 11504 | { | |
| 11505 | /* Check if there is case which can not be aligned. */ | |
| 11506 | if (irel->r_addend == 2 && address & 0x2) | |
| 11507 | return FALSE; | |
| 11508 | continue; | |
| 11509 | } | |
| 11510 | ||
| 11511 | /* Try to align this label. */ | |
| 11512 | ||
| 11513 | if ((irel->r_addend & 0x1f) < 2) | |
| 11514 | { | |
| 11515 | /* Check if there is a INSN16 at the same address. | |
| 11516 | Label_rel always seats before insn_rel after | |
| 11517 | our sort. */ | |
| 11518 | ||
| 11519 | /* Search for INSN16 at LABEL location. If INSN16 is at | |
| 11520 | same location and this LABEL alignment is lower than 2, | |
| 11521 | the INSN16 can be converted to 2-byte. */ | |
| 11522 | for (tmp_rel = irel; | |
| 11523 | tmp_rel < irelend && tmp_rel->r_offset == irel->r_offset; | |
| 11524 | tmp_rel++) | |
| 11525 | { | |
| 11526 | if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_INSN16 | |
| 11527 | && (is_convert_32_to_16 | |
| 11528 | (abfd, sec, tmp_rel, internal_relocs, | |
| 11529 | irelend, &insn16) | |
| 11530 | || is_16bit_NOP (abfd, sec, tmp_rel))) | |
| 11531 | { | |
| 11532 | force_relax = 1; | |
| 11533 | break; | |
| 11534 | } | |
| 11535 | } | |
| 11536 | } | |
| 11537 | ||
| 11538 | if (force_relax || irel->r_addend == 1 || address & 0x2) | |
| 11539 | { | |
| 11540 | /* Label not aligned. */ | |
| 11541 | /* Previous reloc exists, reduce its size to 16-bit. */ | |
| 11542 | if (is_convert_32_to_16 (abfd, sec, insn_rel, | |
| 11543 | internal_relocs, irelend, &insn16)) | |
| 11544 | { | |
| 11545 | nds32_elf_write_16 (abfd, contents, insn_rel, | |
| 11546 | internal_relocs, irelend, insn16); | |
| 11547 | ||
| 11548 | if (!insert_nds32_elf_blank_recalc_total | |
| 11549 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
| 11550 | return FALSE; | |
| 11551 | } | |
| 11552 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
| 11553 | { | |
| 11554 | if (!insert_nds32_elf_blank_recalc_total | |
| 11555 | (relax_blank_list, insn_rel->r_offset, 2)) | |
| 11556 | return FALSE; | |
| 11557 | } | |
| 11558 | ||
| 11559 | } | |
| 11560 | /* INSN16 reloc is used. */ | |
| 11561 | insn_rel = NULL; | |
| 11562 | } | |
| 11563 | } | |
| 11564 | ||
| 11565 | address = | |
| 11566 | sec->size - get_nds32_elf_blank_total (relax_blank_list, sec->size, 0); | |
| 11567 | if (insn_rel && (address & 0x2 || opt_size)) | |
| 11568 | { | |
| 11569 | if (is_convert_32_to_16 (abfd, sec, insn_rel, internal_relocs, | |
| 11570 | irelend, &insn16)) | |
| 11571 | { | |
| 11572 | nds32_elf_write_16 (abfd, contents, insn_rel, internal_relocs, | |
| 11573 | irelend, insn16); | |
| 11574 | if (!insert_nds32_elf_blank_recalc_total | |
| 11575 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
| 11576 | return FALSE; | |
| 11577 | insn_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), | |
| 11578 | R_NDS32_NONE); | |
| 11579 | } | |
| 11580 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
| 11581 | { | |
| 11582 | if (!insert_nds32_elf_blank_recalc_total | |
| 11583 | (relax_blank_list, insn_rel->r_offset, 2)) | |
| 11584 | return FALSE; | |
| 11585 | insn_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), | |
| 11586 | R_NDS32_NONE); | |
| 11587 | } | |
| 11588 | } | |
| 11589 | insn_rel = NULL; | |
| 11590 | return TRUE; | |
| 11591 | } | |
| 11592 | ||
| 11593 | /* Pick relaxation round. */ | |
| 11594 | ||
| 11595 | static int | |
| 11596 | nds32_elf_pick_relax (bfd_boolean init, asection *sec, bfd_boolean *again, | |
| 11597 | struct elf_nds32_link_hash_table *table, | |
| 11598 | struct bfd_link_info *link_info) | |
| 11599 | { | |
| 18393a2e KLC |
11600 | static asection *final_sec, *first_sec = NULL; |
| 11601 | static bfd_boolean normal_again = FALSE; | |
| 1c8f6a4d KLC |
11602 | static bfd_boolean set = FALSE; |
| 11603 | static bfd_boolean first = TRUE; | |
| 11604 | int round_table[] = { | |
| 11605 | NDS32_RELAX_NORMAL_ROUND, | |
| 11606 | NDS32_RELAX_JUMP_IFC_ROUND, | |
| 11607 | NDS32_RELAX_EX9_BUILD_ROUND, | |
| 11608 | NDS32_RELAX_EX9_REPLACE_ROUND, | |
| 11609 | }; | |
| 11610 | static int pass = 0; | |
| 11611 | static int relax_round; | |
| 11612 | ||
| 18393a2e KLC |
11613 | /* The new round. */ |
| 11614 | if (init && first_sec == sec) | |
| 11615 | { | |
| 11616 | set = TRUE; | |
| 11617 | normal_again = FALSE; | |
| 11618 | } | |
| 11619 | ||
| 1c8f6a4d KLC |
11620 | if (first) |
| 11621 | { | |
| 11622 | /* Run an empty run to get the final section. */ | |
| 11623 | relax_round = NDS32_RELAX_EMPTY_ROUND; | |
| 11624 | ||
| 11625 | /* It has to enter relax again because we can | |
| 11626 | not make sure what the final turn is. */ | |
| 11627 | *again = TRUE; | |
| 18393a2e | 11628 | |
| 1c8f6a4d | 11629 | first = FALSE; |
| 18393a2e | 11630 | first_sec = sec; |
| 1c8f6a4d KLC |
11631 | } |
| 11632 | ||
| 18393a2e | 11633 | if (!set) |
| 1c8f6a4d | 11634 | { |
| 18393a2e | 11635 | /* Not reenter yet. */ |
| 1c8f6a4d KLC |
11636 | final_sec = sec; |
| 11637 | return relax_round; | |
| 11638 | } | |
| 11639 | ||
| 1c8f6a4d KLC |
11640 | relax_round = round_table[pass]; |
| 11641 | ||
| 18393a2e KLC |
11642 | if (!init && relax_round == NDS32_RELAX_NORMAL_ROUND && *again) |
| 11643 | normal_again = TRUE; | |
| 11644 | ||
| 1c8f6a4d KLC |
11645 | if (!init && final_sec == sec) |
| 11646 | { | |
| 11647 | switch (relax_round) | |
| 11648 | { | |
| 11649 | case NDS32_RELAX_NORMAL_ROUND: | |
| 18393a2e | 11650 | if (!normal_again) |
| 1c8f6a4d KLC |
11651 | { |
| 11652 | /* Normal relaxation done. */ | |
| 11653 | if (table->target_optimize & NDS32_RELAX_JUMP_IFC_ON) | |
| 11654 | { | |
| 11655 | pass++; | |
| 11656 | *again = TRUE; | |
| 11657 | } | |
| 11658 | else if (table->target_optimize & NDS32_RELAX_EX9_ON) | |
| 11659 | { | |
| 11660 | pass += 2; /* NDS32_RELAX_EX9_BUILD_ROUND */ | |
| 11661 | *again = TRUE; | |
| 11662 | } | |
| 11663 | else if (table->ex9_import_file) | |
| 11664 | { | |
| 11665 | /* Import ex9 table. */ | |
| 11666 | if (table->update_ex9_table) | |
| 11667 | pass += 2; /* NDS32_RELAX_EX9_BUILD_ROUND */ | |
| 11668 | else | |
| 11669 | pass += 3; /* NDS32_RELAX_EX9_REPLACE_ROUND */ | |
| 11670 | nds32_elf_ex9_import_table (link_info); | |
| 11671 | *again = TRUE; | |
| 11672 | } | |
| 11673 | } | |
| 11674 | break; | |
| 11675 | case NDS32_RELAX_JUMP_IFC_ROUND: | |
| 11676 | if (!nds32_elf_ifc_finish (link_info)) | |
| 4eca0228 | 11677 | _bfd_error_handler (_("error: Jump IFC Fail.")); |
| 1c8f6a4d KLC |
11678 | if (table->target_optimize & NDS32_RELAX_EX9_ON) |
| 11679 | { | |
| 11680 | pass++; | |
| 11681 | *again = TRUE; | |
| 11682 | } | |
| 11683 | break; | |
| 11684 | case NDS32_RELAX_EX9_BUILD_ROUND: | |
| 11685 | nds32_elf_ex9_finish (link_info); | |
| 11686 | pass++; | |
| 11687 | *again = TRUE; | |
| 11688 | break; | |
| 11689 | case NDS32_RELAX_EX9_REPLACE_ROUND: | |
| 11690 | if (table->target_optimize & NDS32_RELAX_JUMP_IFC_ON) | |
| 11691 | { | |
| 11692 | /* Do jump IFC optimization again. */ | |
| 11693 | if (!nds32_elf_ifc_finish (link_info)) | |
| 4eca0228 | 11694 | _bfd_error_handler (_("error: Jump IFC Fail.")); |
| 1c8f6a4d KLC |
11695 | } |
| 11696 | break; | |
| 11697 | default: | |
| 11698 | break; | |
| 11699 | } | |
| 11700 | } | |
| 11701 | ||
| 11702 | return relax_round; | |
| 11703 | } | |
| 11704 | ||
| 11705 | static bfd_boolean | |
| 11706 | nds32_elf_relax_section (bfd *abfd, asection *sec, | |
| 11707 | struct bfd_link_info *link_info, bfd_boolean *again) | |
| 11708 | { | |
| 11709 | nds32_elf_blank_t *relax_blank_list = NULL; | |
| 11710 | Elf_Internal_Shdr *symtab_hdr; | |
| 11711 | Elf_Internal_Rela *internal_relocs; | |
| 11712 | Elf_Internal_Rela *irel; | |
| 11713 | Elf_Internal_Rela *irelend; | |
| 11714 | Elf_Internal_Sym *isymbuf = NULL; | |
| 11715 | bfd_byte *contents = NULL; | |
| 11716 | bfd_boolean result = TRUE; | |
| 11717 | int optimize = 0; | |
| 11718 | int opt_size = 0; | |
| 11719 | uint32_t insn; | |
| 11720 | uint16_t insn16; | |
| 11721 | ||
| 11722 | /* Target dependnet option. */ | |
| 11723 | struct elf_nds32_link_hash_table *table; | |
| 11724 | int load_store_relax; | |
| 11725 | int relax_round; | |
| 11726 | ||
| 11727 | relax_blank_list = NULL; | |
| 11728 | ||
| 11729 | *again = FALSE; | |
| 11730 | ||
| 11731 | /* Nothing to do for | |
| 11732 | * relocatable link or | |
| 11733 | * non-relocatable section or | |
| 11734 | * non-code section or | |
| 11735 | * empty content or | |
| 11736 | * no reloc entry. */ | |
| 0e1862bb | 11737 | if (bfd_link_relocatable (link_info) |
| 1c8f6a4d | 11738 | || (sec->flags & SEC_RELOC) == 0 |
| cd28e7aa | 11739 | || (sec->flags & SEC_EXCLUDE) != 0 |
| 1c8f6a4d KLC |
11740 | || (sec->flags & SEC_CODE) == 0 |
| 11741 | || sec->size == 0) | |
| 11742 | return TRUE; | |
| 11743 | ||
| 11744 | /* 09.12.11 Workaround. */ | |
| 11745 | /* We have to adjust align for R_NDS32_LABEL if needed. | |
| 11746 | The adjust approach only can fix 2-byte align once. */ | |
| 11747 | if (sec->alignment_power > 2) | |
| 11748 | return TRUE; | |
| 11749 | ||
| 11750 | /* The optimization type to do. */ | |
| 11751 | ||
| 11752 | table = nds32_elf_hash_table (link_info); | |
| 11753 | relax_round = nds32_elf_pick_relax (TRUE, sec, again, table, link_info); | |
| 11754 | switch (relax_round) | |
| 11755 | { | |
| 11756 | case NDS32_RELAX_JUMP_IFC_ROUND: | |
| 11757 | /* Here is the entrance of ifc jump relaxation. */ | |
| 11758 | if (!nds32_elf_ifc_calc (link_info, abfd, sec)) | |
| 11759 | return FALSE; | |
| 11760 | nds32_elf_pick_relax (FALSE, sec, again, table, link_info); | |
| 11761 | return TRUE; | |
| 11762 | ||
| 11763 | case NDS32_RELAX_EX9_BUILD_ROUND: | |
| 11764 | /* Here is the entrance of ex9 relaxation. There are two pass of | |
| 11765 | ex9 relaxation. The one is to traverse all instructions and build | |
| 11766 | the hash table. The other one is to compare instructions and replace | |
| 11767 | it by ex9.it. */ | |
| 11768 | if (!nds32_elf_ex9_build_hash_table (abfd, sec, link_info)) | |
| 11769 | return FALSE; | |
| 11770 | nds32_elf_pick_relax (FALSE, sec, again, table, link_info); | |
| 11771 | return TRUE; | |
| 11772 | ||
| 11773 | case NDS32_RELAX_EX9_REPLACE_ROUND: | |
| 11774 | if (!nds32_elf_ex9_replace_instruction (link_info, abfd, sec)) | |
| 11775 | return FALSE; | |
| 11776 | return TRUE; | |
| 11777 | ||
| 11778 | case NDS32_RELAX_EMPTY_ROUND: | |
| 11779 | nds32_elf_pick_relax (FALSE, sec, again, table, link_info); | |
| 11780 | return TRUE; | |
| 11781 | ||
| 11782 | case NDS32_RELAX_NORMAL_ROUND: | |
| 11783 | default: | |
| 11784 | if (sec->reloc_count == 0) | |
| 11785 | return TRUE; | |
| 11786 | break; | |
| 11787 | } | |
| 11788 | ||
| 11789 | /* The begining of general relaxation. */ | |
| 11790 | ||
| 11791 | if (is_SDA_BASE_set == 0) | |
| 11792 | { | |
| 11793 | bfd_vma gp; | |
| 11794 | is_SDA_BASE_set = 1; | |
| 11795 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
| 11796 | &gp, FALSE); | |
| 11797 | relax_range_measurement (abfd); | |
| 11798 | } | |
| 11799 | ||
| 11800 | if (is_ITB_BASE_set == 0) | |
| 11801 | { | |
| 11802 | /* Set the _ITB_BASE_. */ | |
| 11803 | if (!nds32_elf_ex9_itb_base (link_info)) | |
| 11804 | { | |
| 4eca0228 | 11805 | _bfd_error_handler (_("%B: error: Cannot set _ITB_BASE_"), abfd); |
| 1c8f6a4d KLC |
11806 | bfd_set_error (bfd_error_bad_value); |
| 11807 | } | |
| 11808 | } | |
| 11809 | ||
| 11810 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
| 11811 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
| 11812 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, | |
| 11813 | TRUE /* keep_memory */); | |
| 11814 | if (internal_relocs == NULL) | |
| 11815 | goto error_return; | |
| 11816 | ||
| 11817 | irelend = internal_relocs + sec->reloc_count; | |
| 11818 | irel = find_relocs_at_address (internal_relocs, internal_relocs, | |
| 11819 | irelend, R_NDS32_RELAX_ENTRY); | |
| 11820 | ||
| 11821 | if (irel == irelend) | |
| 11822 | return TRUE; | |
| 11823 | ||
| 11824 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY) | |
| 11825 | { | |
| 11826 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG) | |
| 18393a2e KLC |
11827 | { |
| 11828 | nds32_elf_pick_relax (FALSE, sec, again, table, link_info); | |
| 11829 | return TRUE; | |
| 11830 | } | |
| 1c8f6a4d KLC |
11831 | |
| 11832 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG) | |
| 11833 | optimize = 1; | |
| 11834 | ||
| 11835 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG) | |
| 11836 | opt_size = 1; | |
| 11837 | } | |
| 11838 | ||
| 11839 | load_store_relax = table->load_store_relax; | |
| 11840 | ||
| 11841 | /* Get symbol table and section content. */ | |
| 0c4bd9d9 | 11842 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE) |
| 1c8f6a4d KLC |
11843 | || !nds32_get_local_syms (abfd, sec, &isymbuf)) |
| 11844 | goto error_return; | |
| 11845 | ||
| 11846 | /* Do relax loop only when finalize is not done. | |
| 11847 | Take care of relaxable relocs except INSN16. */ | |
| 11848 | for (irel = internal_relocs; irel < irelend; irel++) | |
| 11849 | { | |
| 11850 | int seq_len; /* Original length of instruction sequence. */ | |
| 11851 | int insn_len = 0; /* Final length of instruction sequence. */ | |
| 11852 | bfd_boolean removed; | |
| 11853 | ||
| 11854 | insn = 0; | |
| 11855 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
| 11856 | && (irel->r_addend & 0x1f) >= 2) | |
| 11857 | optimize = 1; | |
| 11858 | ||
| 11859 | /* Relocation Types | |
| 11860 | R_NDS32_LONGCALL1 53 | |
| 11861 | R_NDS32_LONGCALL2 54 | |
| 11862 | R_NDS32_LONGCALL3 55 | |
| 11863 | R_NDS32_LONGJUMP1 56 | |
| 11864 | R_NDS32_LONGJUMP2 57 | |
| 11865 | R_NDS32_LONGJUMP3 58 | |
| 11866 | R_NDS32_LOADSTORE 59 */ | |
| 11867 | if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_LONGCALL1 | |
| 11868 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_LOADSTORE) | |
| 11869 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
| 11870 | ||
| 11871 | /* Relocation Types | |
| 11872 | R_NDS32_LONGCALL4 107 | |
| 11873 | R_NDS32_LONGCALL5 108 | |
| 11874 | R_NDS32_LONGCALL6 109 | |
| 11875 | R_NDS32_LONGJUMP4 110 | |
| 11876 | R_NDS32_LONGJUMP5 111 | |
| 11877 | R_NDS32_LONGJUMP6 112 | |
| 11878 | R_NDS32_LONGJUMP7 113 */ | |
| 11879 | else if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_LONGCALL4 | |
| 11880 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_LONGJUMP7) | |
| 11881 | seq_len = 4; | |
| 11882 | ||
| 11883 | /* Relocation Types | |
| 11884 | R_NDS32_LO12S0_RELA 30 | |
| 11885 | R_NDS32_LO12S1_RELA 29 | |
| 11886 | R_NDS32_LO12S2_RELA 28 | |
| 11887 | R_NDS32_LO12S2_SP_RELA 71 | |
| 11888 | R_NDS32_LO12S2_DP_RELA 70 | |
| 11889 | R_NDS32_GOT_LO12 46 | |
| 11890 | R_NDS32_GOTOFF_LO12 50 | |
| 11891 | R_NDS32_PLTREL_LO12 65 | |
| 11892 | R_NDS32_PLT_GOTREL_LO12 67 | |
| 11893 | R_NDS32_17IFC_PCREL_RELA 96 | |
| 11894 | R_NDS32_GOT_SUFF 193 | |
| 11895 | R_NDS32_GOTOFF_SUFF 194 | |
| 11896 | R_NDS32_PLT_GOT_SUFF 195 | |
| 11897 | R_NDS32_MULCALL_SUFF 196 | |
| 11898 | R_NDS32_PTR 197 */ | |
| 11899 | else if ((ELF32_R_TYPE (irel->r_info) <= R_NDS32_LO12S0_RELA | |
| 11900 | && ELF32_R_TYPE (irel->r_info) >= R_NDS32_LO12S2_RELA) | |
| 11901 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_SP_RELA | |
| 11902 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_DP_RELA | |
| 11903 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOT_LO12 | |
| 11904 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTOFF_LO12 | |
| 11905 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTPC_LO12 | |
| 11906 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_PLTREL_LO12 | |
| 11907 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_PLT_GOTREL_LO12 | |
| 11908 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_GOT_SUFF | |
| 11909 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_PTR) | |
| 11910 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_17IFC_PCREL_RELA | |
| 11911 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_LO12 | |
| 11912 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_ADD | |
| 11913 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_LS) | |
| 11914 | seq_len = 0; | |
| 11915 | else | |
| 11916 | continue; | |
| 11917 | ||
| 11918 | insn_len = seq_len; | |
| 11919 | removed = FALSE; | |
| 11920 | ||
| 11921 | switch (ELF32_R_TYPE (irel->r_info)) | |
| 11922 | { | |
| 11923 | case R_NDS32_LONGCALL1: | |
| 11924 | removed = nds32_elf_relax_longcall1 (abfd, sec, irel, internal_relocs, | |
| 11925 | &insn_len, contents, isymbuf, | |
| 11926 | symtab_hdr); | |
| 11927 | break; | |
| 11928 | case R_NDS32_LONGCALL2: | |
| 11929 | removed = nds32_elf_relax_longcall2 (abfd, sec, irel, internal_relocs, | |
| 11930 | &insn_len, contents, isymbuf, | |
| 11931 | symtab_hdr); | |
| 11932 | break; | |
| 11933 | case R_NDS32_LONGCALL3: | |
| 11934 | removed = nds32_elf_relax_longcall3 (abfd, sec, irel, internal_relocs, | |
| 11935 | &insn_len, contents, isymbuf, | |
| 11936 | symtab_hdr); | |
| 11937 | break; | |
| 11938 | case R_NDS32_LONGJUMP1: | |
| 11939 | removed = nds32_elf_relax_longjump1 (abfd, sec, irel, internal_relocs, | |
| 11940 | &insn_len, contents, isymbuf, | |
| 11941 | symtab_hdr); | |
| 11942 | break; | |
| 11943 | case R_NDS32_LONGJUMP2: | |
| 11944 | removed = nds32_elf_relax_longjump2 (abfd, sec, irel, internal_relocs, | |
| 11945 | &insn_len, contents, isymbuf, | |
| 11946 | symtab_hdr); | |
| 11947 | break; | |
| 11948 | case R_NDS32_LONGJUMP3: | |
| 11949 | removed = nds32_elf_relax_longjump3 (abfd, sec, irel, internal_relocs, | |
| 11950 | &insn_len, contents, isymbuf, | |
| 11951 | symtab_hdr); | |
| 11952 | break; | |
| 11953 | case R_NDS32_LONGCALL4: | |
| 11954 | removed = nds32_elf_relax_longcall4 (abfd, sec, irel, internal_relocs, | |
| 11955 | &insn_len, contents, isymbuf, | |
| 11956 | symtab_hdr); | |
| 11957 | break; | |
| 11958 | case R_NDS32_LONGCALL5: | |
| 11959 | removed = nds32_elf_relax_longcall5 (abfd, sec, irel, internal_relocs, | |
| 11960 | &insn_len, contents, isymbuf, | |
| 11961 | symtab_hdr); | |
| 11962 | break; | |
| 11963 | case R_NDS32_LONGCALL6: | |
| 11964 | removed = nds32_elf_relax_longcall6 (abfd, sec, irel, internal_relocs, | |
| 11965 | &insn_len, contents, isymbuf, | |
| 11966 | symtab_hdr); | |
| 11967 | break; | |
| 11968 | case R_NDS32_LONGJUMP4: | |
| 11969 | removed = nds32_elf_relax_longjump4 (abfd, sec, irel, internal_relocs, | |
| 11970 | &insn_len, contents, isymbuf, | |
| 11971 | symtab_hdr); | |
| 11972 | break; | |
| 11973 | case R_NDS32_LONGJUMP5: | |
| 11974 | removed = nds32_elf_relax_longjump5 (abfd, sec, irel, internal_relocs, | |
| 11975 | &insn_len, &seq_len, contents, | |
| 11976 | isymbuf, symtab_hdr); | |
| 11977 | break; | |
| 11978 | case R_NDS32_LONGJUMP6: | |
| 11979 | removed = nds32_elf_relax_longjump6 (abfd, sec, irel, internal_relocs, | |
| 11980 | &insn_len, &seq_len, contents, | |
| 11981 | isymbuf, symtab_hdr); | |
| 11982 | break; | |
| 11983 | case R_NDS32_LONGJUMP7: | |
| 11984 | removed = nds32_elf_relax_longjump7 (abfd, sec, irel, internal_relocs, | |
| 11985 | &insn_len, &seq_len, contents, | |
| 11986 | isymbuf, symtab_hdr); | |
| 11987 | break; | |
| 11988 | case R_NDS32_LOADSTORE: | |
| 11989 | removed = nds32_elf_relax_loadstore (link_info, abfd, sec, irel, | |
| 11990 | internal_relocs, &insn_len, | |
| 11991 | contents, isymbuf, symtab_hdr, | |
| 11992 | load_store_relax); | |
| 11993 | break; | |
| 11994 | case R_NDS32_LO12S0_RELA: | |
| 11995 | case R_NDS32_LO12S1_RELA: | |
| 11996 | case R_NDS32_LO12S2_DP_RELA: | |
| 11997 | case R_NDS32_LO12S2_SP_RELA: | |
| 11998 | case R_NDS32_LO12S2_RELA: | |
| 11999 | /* Relax for low part. */ | |
| 12000 | nds32_elf_relax_lo12 (link_info, abfd, sec, irel, internal_relocs, | |
| 12001 | contents, isymbuf, symtab_hdr); | |
| 12002 | ||
| 12003 | /* It is impossible to delete blank, so just continue. */ | |
| 12004 | continue; | |
| 12005 | case R_NDS32_GOT_LO12: | |
| 12006 | case R_NDS32_GOTOFF_LO12: | |
| 12007 | case R_NDS32_PLTREL_LO12: | |
| 12008 | case R_NDS32_PLT_GOTREL_LO12: | |
| 12009 | case R_NDS32_GOTPC_LO12: | |
| 12010 | /* Relax for PIC gp-relative low part. */ | |
| 12011 | nds32_elf_relax_piclo12 (link_info, abfd, sec, irel, contents, | |
| 12012 | isymbuf, symtab_hdr); | |
| 35c08157 | 12013 | |
| 1c8f6a4d KLC |
12014 | /* It is impossible to delete blank, so just continue. */ |
| 12015 | continue; | |
| 12016 | case R_NDS32_TLS_LE_LO12: | |
| 12017 | /* Relax for LE TLS low part. */ | |
| 12018 | nds32_elf_relax_letlslo12 (link_info, abfd, irel, contents, | |
| 12019 | isymbuf, symtab_hdr); | |
| 35c08157 | 12020 | |
| 1c8f6a4d KLC |
12021 | /* It is impossible to delete blank, so just continue. */ |
| 12022 | continue; | |
| 12023 | case R_NDS32_TLS_LE_ADD: | |
| 12024 | nds32_elf_relax_letlsadd (link_info, abfd, sec, irel, internal_relocs, | |
| 12025 | contents, isymbuf, symtab_hdr, again); | |
| 12026 | /* It is impossible to delete blank, so just continue. */ | |
| 12027 | continue; | |
| 12028 | case R_NDS32_TLS_LE_LS: | |
| 12029 | nds32_elf_relax_letlsls (link_info, abfd, sec, irel, internal_relocs, | |
| 12030 | contents, isymbuf, symtab_hdr, again); | |
| 12031 | continue; | |
| 12032 | case R_NDS32_PTR: | |
| 12033 | removed = nds32_elf_relax_ptr (abfd, sec, irel, internal_relocs, | |
| 12034 | &insn_len, &seq_len, contents); | |
| 12035 | break; | |
| 12036 | case R_NDS32_PLT_GOT_SUFF: | |
| 12037 | nds32_elf_relax_pltgot_suff (link_info, abfd, sec, irel, | |
| 12038 | internal_relocs, contents, | |
| 12039 | isymbuf, symtab_hdr, again); | |
| 12040 | /* It is impossible to delete blank, so just continue. */ | |
| 12041 | continue; | |
| 12042 | case R_NDS32_GOT_SUFF: | |
| 12043 | nds32_elf_relax_got_suff (link_info, abfd, sec, irel, | |
| 12044 | internal_relocs, contents, | |
| 12045 | symtab_hdr, again); | |
| 12046 | /* It is impossible to delete blank, so just continue. */ | |
| 12047 | continue; | |
| 12048 | case R_NDS32_GOTOFF_SUFF: | |
| 12049 | nds32_elf_relax_gotoff_suff (link_info, abfd, sec, irel, | |
| 12050 | internal_relocs, contents, | |
| 12051 | isymbuf, symtab_hdr, again); | |
| 12052 | /* It is impossible to delete blank, so just continue. */ | |
| 12053 | continue; | |
| 12054 | default: | |
| 12055 | continue; | |
| 12056 | ||
| 12057 | } | |
| 12058 | if (removed && seq_len - insn_len > 0) | |
| 12059 | { | |
| 12060 | if (!insert_nds32_elf_blank | |
| 12061 | (&relax_blank_list, irel->r_offset + insn_len, | |
| 12062 | seq_len - insn_len)) | |
| 12063 | goto error_return; | |
| 12064 | *again = TRUE; | |
| 35c08157 | 12065 | } |
| 1c8f6a4d KLC |
12066 | } |
| 12067 | ||
| 12068 | calc_nds32_blank_total (relax_blank_list); | |
| 12069 | ||
| 12070 | if (table->relax_fp_as_gp) | |
| 12071 | { | |
| 12072 | if (!nds32_relax_fp_as_gp (link_info, abfd, sec, internal_relocs, | |
| 12073 | irelend, isymbuf)) | |
| 12074 | goto error_return; | |
| 35c08157 | 12075 | |
| 535b785f | 12076 | if (!*again) |
| 35c08157 | 12077 | { |
| 1c8f6a4d KLC |
12078 | if (!nds32_fag_remove_unused_fpbase (abfd, sec, internal_relocs, |
| 12079 | irelend)) | |
| 12080 | goto error_return; | |
| 35c08157 KLC |
12081 | } |
| 12082 | } | |
| 1c8f6a4d KLC |
12083 | |
| 12084 | nds32_elf_pick_relax (FALSE, sec, again, table, link_info); | |
| 12085 | ||
| 535b785f | 12086 | if (!*again) |
| 1c8f6a4d KLC |
12087 | { |
| 12088 | if (!nds32_relax_adjust_label (abfd, sec, internal_relocs, contents, | |
| 12089 | &relax_blank_list, optimize, opt_size)) | |
| 12090 | goto error_return; | |
| 12091 | } | |
| 12092 | ||
| 12093 | /* It doesn't matter optimize_for_space_no_align anymore. | |
| 35c08157 KLC |
12094 | If object file is assembled with flag '-Os', |
| 12095 | the we don't adjust jump-destination on 4-byte boundary. */ | |
| 12096 | ||
| 12097 | if (relax_blank_list) | |
| 12098 | { | |
| 12099 | nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list); | |
| 12100 | relax_blank_list = NULL; | |
| 12101 | } | |
| 12102 | ||
| 535b785f | 12103 | if (!*again) |
| 35c08157 KLC |
12104 | { |
| 12105 | /* Closing the section, so we don't relax it anymore. */ | |
| 12106 | bfd_vma sec_size_align; | |
| 12107 | Elf_Internal_Rela *tmp_rel; | |
| 12108 | ||
| 12109 | /* Pad to alignment boundary. Only handle current section alignment. */ | |
| 609332f1 NC |
12110 | sec_size_align = (sec->size + (~((-1U) << sec->alignment_power))) |
| 12111 | & ((-1U) << sec->alignment_power); | |
| 35c08157 KLC |
12112 | if ((sec_size_align - sec->size) & 0x2) |
| 12113 | { | |
| 12114 | insn16 = NDS32_NOP16; | |
| 12115 | bfd_putb16 (insn16, contents + sec->size); | |
| 12116 | sec->size += 2; | |
| 12117 | } | |
| 12118 | ||
| 12119 | while (sec_size_align != sec->size) | |
| 12120 | { | |
| 12121 | insn = NDS32_NOP32; | |
| 12122 | bfd_putb32 (insn, contents + sec->size); | |
| 12123 | sec->size += 4; | |
| 12124 | } | |
| 12125 | ||
| 1c8f6a4d KLC |
12126 | tmp_rel = find_relocs_at_address (internal_relocs, internal_relocs, |
| 12127 | irelend, R_NDS32_RELAX_ENTRY); | |
| 35c08157 KLC |
12128 | if (tmp_rel != irelend) |
| 12129 | tmp_rel->r_addend |= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG; | |
| 12130 | ||
| 12131 | clean_nds32_elf_blank (); | |
| 12132 | } | |
| 12133 | ||
| 12134 | finish: | |
| 12135 | if (internal_relocs != NULL | |
| 12136 | && elf_section_data (sec)->relocs != internal_relocs) | |
| 12137 | free (internal_relocs); | |
| 12138 | ||
| 12139 | if (contents != NULL | |
| 12140 | && elf_section_data (sec)->this_hdr.contents != contents) | |
| 12141 | free (contents); | |
| 12142 | ||
| 12143 | if (isymbuf != NULL && symtab_hdr->contents != (bfd_byte *) isymbuf) | |
| 12144 | free (isymbuf); | |
| 12145 | ||
| 12146 | return result; | |
| 12147 | ||
| 12148 | error_return: | |
| 12149 | result = FALSE; | |
| 12150 | goto finish; | |
| 12151 | } | |
| 12152 | ||
| 12153 | static struct bfd_elf_special_section const nds32_elf_special_sections[] = | |
| 12154 | { | |
| 12155 | {".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE}, | |
| 12156 | {".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE}, | |
| 12157 | {NULL, 0, 0, 0, 0} | |
| 12158 | }; | |
| 12159 | ||
| 12160 | static bfd_boolean | |
| 12161 | nds32_elf_output_arch_syms (bfd *output_bfd ATTRIBUTE_UNUSED, | |
| 12162 | struct bfd_link_info *info, | |
| 12163 | void *finfo ATTRIBUTE_UNUSED, | |
| 12164 | bfd_boolean (*func) (void *, const char *, | |
| 12165 | Elf_Internal_Sym *, | |
| 12166 | asection *, | |
| 12167 | struct elf_link_hash_entry *) | |
| 12168 | ATTRIBUTE_UNUSED) | |
| 12169 | { | |
| 12170 | FILE *sym_ld_script = NULL; | |
| 12171 | struct elf_nds32_link_hash_table *table; | |
| 12172 | ||
| 12173 | table = nds32_elf_hash_table (info); | |
| 12174 | sym_ld_script = table->sym_ld_script; | |
| 12175 | ||
| 12176 | if (check_start_export_sym) | |
| 12177 | fprintf (sym_ld_script, "}\n"); | |
| 12178 | ||
| 12179 | return TRUE; | |
| 12180 | } | |
| 12181 | ||
| 12182 | static enum elf_reloc_type_class | |
| 12183 | nds32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
| 12184 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
| 12185 | const Elf_Internal_Rela *rela) | |
| 12186 | { | |
| 12187 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
| 12188 | { | |
| 12189 | case R_NDS32_RELATIVE: | |
| 12190 | return reloc_class_relative; | |
| 12191 | case R_NDS32_JMP_SLOT: | |
| 12192 | return reloc_class_plt; | |
| 12193 | case R_NDS32_COPY: | |
| 12194 | return reloc_class_copy; | |
| 12195 | default: | |
| 12196 | return reloc_class_normal; | |
| 12197 | } | |
| 12198 | } | |
| 12199 | ||
| 12200 | /* Put target dependent option into info hash table. */ | |
| 12201 | void | |
| 12202 | bfd_elf32_nds32_set_target_option (struct bfd_link_info *link_info, | |
| 12203 | int relax_fp_as_gp, | |
| 12204 | int eliminate_gc_relocs, | |
| 12205 | FILE * sym_ld_script, int load_store_relax, | |
| 12206 | int target_optimize, int relax_status, | |
| 12207 | int relax_round, FILE * ex9_export_file, | |
| 12208 | FILE * ex9_import_file, | |
| 12209 | int update_ex9_table, int ex9_limit, | |
| 12210 | bfd_boolean ex9_loop_aware, | |
| 12211 | bfd_boolean ifc_loop_aware) | |
| 12212 | { | |
| 12213 | struct elf_nds32_link_hash_table *table; | |
| 12214 | ||
| 12215 | table = nds32_elf_hash_table (link_info); | |
| 12216 | if (table == NULL) | |
| 12217 | return; | |
| 12218 | ||
| 12219 | table->relax_fp_as_gp = relax_fp_as_gp; | |
| 12220 | table->eliminate_gc_relocs = eliminate_gc_relocs; | |
| 12221 | table->sym_ld_script = sym_ld_script; | |
| 12222 | table ->load_store_relax = load_store_relax; | |
| 12223 | table->target_optimize = target_optimize; | |
| 12224 | table->relax_status = relax_status; | |
| 12225 | table->relax_round = relax_round; | |
| 12226 | table->ex9_export_file = ex9_export_file; | |
| 12227 | table->ex9_import_file = ex9_import_file; | |
| 12228 | table->update_ex9_table = update_ex9_table; | |
| 12229 | table->ex9_limit = ex9_limit; | |
| 12230 | table->ex9_loop_aware = ex9_loop_aware; | |
| 12231 | table->ifc_loop_aware = ifc_loop_aware; | |
| 12232 | } | |
| 12233 | \f | |
| 12234 | /* These functions and data-structures are used for fp-as-gp | |
| 12235 | optimization. */ | |
| 12236 | ||
| 12237 | #define FAG_THRESHOLD 3 /* At least 3 gp-access. */ | |
| 1c8f6a4d KLC |
12238 | /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between |
| 12239 | the read-only section and read-write section. */ | |
| 12240 | #define FAG_WINDOW (508 - 32) | |
| 35c08157 KLC |
12241 | |
| 12242 | /* An nds32_fag represent a gp-relative access. | |
| 12243 | We find best fp-base by using a sliding window | |
| 12244 | to find a base address which can cover most gp-access. */ | |
| 12245 | struct nds32_fag | |
| 12246 | { | |
| 12247 | struct nds32_fag *next; /* NULL-teminated linked list. */ | |
| 12248 | bfd_vma addr; /* The address of this fag. */ | |
| 12249 | Elf_Internal_Rela **relas; /* The relocations associated with this fag. | |
| 12250 | It is used for applying FP7U2_FLAG. */ | |
| 12251 | int count; /* How many times this address is referred. | |
| 12252 | There should be exactly `count' relocations | |
| 12253 | in relas. */ | |
| 12254 | int relas_capcity; /* The buffer size of relas. | |
| 12255 | We use an array instead of linked-list, | |
| 12256 | and realloc is used to adjust buffer size. */ | |
| 12257 | }; | |
| 12258 | ||
| 12259 | static void | |
| 12260 | nds32_fag_init (struct nds32_fag *head) | |
| 12261 | { | |
| 12262 | memset (head, 0, sizeof (struct nds32_fag)); | |
| 12263 | } | |
| 12264 | ||
| 12265 | static void | |
| 12266 | nds32_fag_verify (struct nds32_fag *head) | |
| 12267 | { | |
| 12268 | struct nds32_fag *iter; | |
| 12269 | struct nds32_fag *prev; | |
| 12270 | ||
| 12271 | prev = NULL; | |
| 12272 | iter = head->next; | |
| 12273 | while (iter) | |
| 12274 | { | |
| 12275 | if (prev && prev->addr >= iter->addr) | |
| 12276 | puts ("Bug in fp-as-gp insertion."); | |
| 12277 | prev = iter; | |
| 12278 | iter = iter->next; | |
| 12279 | } | |
| 12280 | } | |
| 12281 | ||
| 12282 | /* Insert a fag in ascending order. | |
| 12283 | If a fag of the same address already exists, | |
| 12284 | they are chained by relas array. */ | |
| 12285 | ||
| 12286 | static void | |
| 12287 | nds32_fag_insert (struct nds32_fag *head, bfd_vma addr, | |
| 12288 | Elf_Internal_Rela * rel) | |
| 12289 | { | |
| 12290 | struct nds32_fag *iter; | |
| 12291 | struct nds32_fag *new_fag; | |
| 12292 | const int INIT_RELAS_CAP = 4; | |
| 12293 | ||
| 12294 | for (iter = head; | |
| 12295 | iter->next && iter->next->addr <= addr; | |
| 12296 | iter = iter->next) | |
| 12297 | /* Find somewhere to insert. */ ; | |
| 12298 | ||
| 12299 | /* `iter' will be equal to `head' if the list is empty. */ | |
| 12300 | if (iter != head && iter->addr == addr) | |
| 12301 | { | |
| 12302 | /* The address exists in the list. | |
| 12303 | Insert `rel' into relocation list, relas. */ | |
| 12304 | ||
| 12305 | /* Check whether relas is big enough. */ | |
| 12306 | if (iter->count >= iter->relas_capcity) | |
| 12307 | { | |
| 12308 | iter->relas_capcity *= 2; | |
| 12309 | iter->relas = bfd_realloc | |
| 12310 | (iter->relas, iter->relas_capcity * sizeof (void *)); | |
| 12311 | } | |
| 12312 | iter->relas[iter->count++] = rel; | |
| 12313 | return; | |
| 12314 | } | |
| 12315 | ||
| 12316 | /* This is a new address. Create a fag node for it. */ | |
| 12317 | new_fag = bfd_malloc (sizeof (struct nds32_fag)); | |
| 12318 | memset (new_fag, 0, sizeof (*new_fag)); | |
| 12319 | new_fag->addr = addr; | |
| 12320 | new_fag->count = 1; | |
| 12321 | new_fag->next = iter->next; | |
| 12322 | new_fag->relas_capcity = INIT_RELAS_CAP; | |
| 12323 | new_fag->relas = (Elf_Internal_Rela **) | |
| 12324 | bfd_malloc (new_fag->relas_capcity * sizeof (void *)); | |
| 12325 | new_fag->relas[0] = rel; | |
| 12326 | iter->next = new_fag; | |
| 12327 | ||
| 12328 | nds32_fag_verify (head); | |
| 12329 | } | |
| 12330 | ||
| 12331 | static void | |
| 12332 | nds32_fag_free_list (struct nds32_fag *head) | |
| 12333 | { | |
| 12334 | struct nds32_fag *iter; | |
| 12335 | ||
| 12336 | iter = head->next; | |
| 12337 | while (iter) | |
| 12338 | { | |
| 12339 | struct nds32_fag *tmp = iter; | |
| 12340 | iter = iter->next; | |
| 12341 | free (tmp->relas); | |
| 12342 | tmp->relas = NULL; | |
| 12343 | free (tmp); | |
| 12344 | } | |
| 12345 | } | |
| 12346 | ||
| 35c08157 KLC |
12347 | /* Find the best fp-base address. |
| 12348 | The relocation associated with that address is returned, | |
| 12349 | so we can track the symbol instead of a fixed address. | |
| 12350 | ||
| 12351 | When relaxation, the address of an datum may change, | |
| 12352 | because a text section is shrinked, so the data section | |
| 1c8f6a4d | 12353 | moves forward. If the aligments of text and data section |
| 35c08157 KLC |
12354 | are different, their distance may change too. |
| 12355 | Therefore, tracking a fixed address is not appriate. */ | |
| 12356 | ||
| 12357 | static int | |
| 12358 | nds32_fag_find_base (struct nds32_fag *head, struct nds32_fag **bestpp) | |
| 12359 | { | |
| 12360 | struct nds32_fag *base; /* First fag in the window. */ | |
| 12361 | struct nds32_fag *last; /* First fag outside the window. */ | |
| 12362 | int accu = 0; /* Usage accumulation. */ | |
| 12363 | struct nds32_fag *best; /* Best fag. */ | |
| 12364 | int baccu = 0; /* Best accumulation. */ | |
| 12365 | ||
| 12366 | /* Use first fag for initial, and find the last fag in the window. | |
| 12367 | ||
| 12368 | In each iteration, we could simply subtract previous fag | |
| 12369 | and accumulate following fags which are inside the window, | |
| 12370 | untill we each the end. */ | |
| 12371 | ||
| 1c8f6a4d KLC |
12372 | if (head->next == NULL) |
| 12373 | { | |
| 12374 | *bestpp = NULL; | |
| 12375 | return 0; | |
| 12376 | } | |
| 35c08157 KLC |
12377 | |
| 12378 | /* Initialize base. */ | |
| 12379 | base = head->next; | |
| 12380 | best = base; | |
| 12381 | for (last = base; | |
| 12382 | last && last->addr < base->addr + FAG_WINDOW; | |
| 12383 | last = last->next) | |
| 12384 | accu += last->count; | |
| 12385 | ||
| 12386 | baccu = accu; | |
| 12387 | ||
| 12388 | /* Record the best base in each iteration. */ | |
| 12389 | while (base->next) | |
| 1c8f6a4d KLC |
12390 | { |
| 12391 | accu -= base->count; | |
| 12392 | base = base->next; | |
| 12393 | /* Account fags in window. */ | |
| 12394 | for (/* Nothing. */; | |
| 12395 | last && last->addr < base->addr + FAG_WINDOW; | |
| 12396 | last = last->next) | |
| 12397 | accu += last->count; | |
| 12398 | ||
| 12399 | /* A better fp-base? */ | |
| 12400 | if (accu > baccu) | |
| 12401 | { | |
| 12402 | best = base; | |
| 12403 | baccu = accu; | |
| 12404 | } | |
| 12405 | } | |
| 35c08157 KLC |
12406 | |
| 12407 | if (bestpp) | |
| 12408 | *bestpp = best; | |
| 12409 | return baccu; | |
| 12410 | } | |
| 12411 | ||
| 12412 | /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses, | |
| 12413 | so we can convert it fo fp-relative access later. | |
| 12414 | `best_fag' is the best fp-base. Only those inside the window | |
| 12415 | of best_fag is applied the flag. */ | |
| 12416 | ||
| 12417 | static bfd_boolean | |
| 12418 | nds32_fag_mark_relax (struct bfd_link_info *link_info, | |
| 12419 | bfd *abfd, struct nds32_fag *best_fag, | |
| 12420 | Elf_Internal_Rela *internal_relocs, | |
| 12421 | Elf_Internal_Rela *irelend) | |
| 12422 | { | |
| 12423 | struct nds32_fag *ifag; | |
| 12424 | bfd_vma best_fpbase, gp; | |
| 12425 | bfd *output_bfd; | |
| 12426 | ||
| 12427 | output_bfd = abfd->sections->output_section->owner; | |
| 12428 | nds32_elf_final_sda_base (output_bfd, link_info, &gp, FALSE); | |
| 12429 | best_fpbase = best_fag->addr; | |
| 12430 | ||
| 1c8f6a4d KLC |
12431 | if (best_fpbase > gp + sdata_range[1][1] |
| 12432 | || best_fpbase < gp - sdata_range[1][0]) | |
| 35c08157 KLC |
12433 | return FALSE; |
| 12434 | ||
| 12435 | /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag, | |
| 12436 | so we know they can be converted to lwi37.fp. */ | |
| 12437 | for (ifag = best_fag; | |
| 12438 | ifag && ifag->addr < best_fpbase + FAG_WINDOW; ifag = ifag->next) | |
| 12439 | { | |
| 12440 | int i; | |
| 12441 | ||
| 12442 | for (i = 0; i < ifag->count; i++) | |
| 12443 | { | |
| 12444 | Elf_Internal_Rela *insn16_rel; | |
| 12445 | Elf_Internal_Rela *fag_rel; | |
| 12446 | ||
| 12447 | fag_rel = ifag->relas[i]; | |
| 12448 | ||
| 12449 | /* Only if this is within the WINDOWS, FP7U2_FLAG | |
| 12450 | is applied. */ | |
| 12451 | ||
| 12452 | insn16_rel = find_relocs_at_address | |
| 12453 | (fag_rel, internal_relocs, irelend, R_NDS32_INSN16); | |
| 12454 | ||
| 12455 | if (insn16_rel != irelend) | |
| 12456 | insn16_rel->r_addend = R_NDS32_INSN16_FP7U2_FLAG; | |
| 12457 | } | |
| 12458 | } | |
| 12459 | return TRUE; | |
| 12460 | } | |
| 12461 | ||
| 1c8f6a4d KLC |
12462 | /* Reset INSN16 to clean fp as gp. */ |
| 12463 | ||
| 12464 | static void | |
| 12465 | nds32_fag_unmark_relax (struct nds32_fag *fag, | |
| 12466 | Elf_Internal_Rela *internal_relocs, | |
| 12467 | Elf_Internal_Rela *irelend) | |
| 12468 | { | |
| 12469 | struct nds32_fag *ifag; | |
| 12470 | int i; | |
| 12471 | Elf_Internal_Rela *insn16_rel; | |
| 12472 | Elf_Internal_Rela *fag_rel; | |
| 12473 | ||
| 12474 | for (ifag = fag; ifag; ifag = ifag->next) | |
| 12475 | { | |
| 12476 | for (i = 0; i < ifag->count; i++) | |
| 12477 | { | |
| 12478 | fag_rel = ifag->relas[i]; | |
| 12479 | ||
| 12480 | /* Restore the INSN16 relocation. */ | |
| 12481 | insn16_rel = find_relocs_at_address | |
| 12482 | (fag_rel, internal_relocs, irelend, R_NDS32_INSN16); | |
| 12483 | ||
| 12484 | if (insn16_rel != irelend) | |
| 12485 | insn16_rel->r_addend &= ~R_NDS32_INSN16_FP7U2_FLAG; | |
| 12486 | } | |
| 12487 | } | |
| 12488 | } | |
| 12489 | ||
| 35c08157 KLC |
12490 | /* This is the main function of fp-as-gp optimization. |
| 12491 | It should be called by relax_section. */ | |
| 12492 | ||
| 12493 | static bfd_boolean | |
| 12494 | nds32_relax_fp_as_gp (struct bfd_link_info *link_info, | |
| 12495 | bfd *abfd, asection *sec, | |
| 12496 | Elf_Internal_Rela *internal_relocs, | |
| 12497 | Elf_Internal_Rela *irelend, | |
| 12498 | Elf_Internal_Sym *isymbuf) | |
| 12499 | { | |
| 12500 | Elf_Internal_Rela *begin_rel = NULL; | |
| 12501 | Elf_Internal_Rela *irel; | |
| 12502 | struct nds32_fag fag_head; | |
| 12503 | Elf_Internal_Shdr *symtab_hdr; | |
| 12504 | bfd_byte *contents; | |
| 1c8f6a4d | 12505 | bfd_boolean ifc_inside = FALSE; |
| 35c08157 KLC |
12506 | |
| 12507 | /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */ | |
| 12508 | ||
| 12509 | /* Per-function fp-base selection. | |
| 12510 | 1. Create a list for all the gp-relative access. | |
| 12511 | 2. Base on those gp-relative address, | |
| 12512 | find a fp-base which can cover most access. | |
| 12513 | 3. Use the fp-base for fp-as-gp relaxation. | |
| 12514 | ||
| 12515 | NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times), | |
| 12516 | we should | |
| 12517 | 1. delete the `la $fp, _FP_BASE_' instruction and | |
| 12518 | 2. not convert lwi.gp to lwi37.fp. | |
| 12519 | ||
| 12520 | To delete the _FP_BASE_ instruction, we simply apply | |
| 12521 | R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it. | |
| 12522 | ||
| 12523 | To suppress the conversion, we simply NOT to apply | |
| 12524 | R_NDS32_INSN16_FP7U2_FLAG flag. */ | |
| 12525 | ||
| 12526 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
| 12527 | ||
| 0c4bd9d9 | 12528 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE) |
| 35c08157 KLC |
12529 | || !nds32_get_local_syms (abfd, sec, &isymbuf)) |
| 12530 | return FALSE; | |
| 12531 | ||
| 12532 | /* Check whether it is worth for fp-as-gp optimization, | |
| 12533 | i.e., at least 3 gp-load. | |
| 12534 | ||
| 12535 | Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT | |
| 12536 | apply this optimization. */ | |
| 12537 | ||
| 12538 | for (irel = internal_relocs; irel < irelend; irel++) | |
| 12539 | { | |
| 12540 | /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region. | |
| 12541 | One we enter the begin of the region, we track all the LW/ST | |
| 12542 | instructions, so when we leave the region, we try to find | |
| 12543 | the best fp-base address for those LW/ST instructions. */ | |
| 12544 | ||
| 12545 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN | |
| 12546 | && (irel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
| 12547 | { | |
| 12548 | /* Begin of the region. */ | |
| 12549 | if (begin_rel) | |
| 695344c0 | 12550 | /* xgettext:c-format */ |
| 4eca0228 | 12551 | _bfd_error_handler (_("%B: Nested OMIT_FP in %A."), abfd, sec); |
| 35c08157 KLC |
12552 | |
| 12553 | begin_rel = irel; | |
| 12554 | nds32_fag_init (&fag_head); | |
| 1c8f6a4d | 12555 | ifc_inside = FALSE; |
| 35c08157 KLC |
12556 | } |
| 12557 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END | |
| 12558 | && (irel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
| 12559 | { | |
| 12560 | int accu; | |
| 1c8f6a4d | 12561 | struct nds32_fag *best_fag, *tmp_fag; |
| 35c08157 KLC |
12562 | int dist; |
| 12563 | ||
| 12564 | /* End of the region. | |
| 12565 | Check whether it is worth to do fp-as-gp. */ | |
| 12566 | ||
| 12567 | if (begin_rel == NULL) | |
| 12568 | { | |
| 695344c0 | 12569 | /* xgettext:c-format */ |
| 4eca0228 | 12570 | _bfd_error_handler (_("%B: Unmatched OMIT_FP in %A."), abfd, sec); |
| 35c08157 KLC |
12571 | continue; |
| 12572 | } | |
| 12573 | ||
| 12574 | accu = nds32_fag_find_base (&fag_head, &best_fag); | |
| 12575 | ||
| 1c8f6a4d KLC |
12576 | /* Clean FP7U2_FLAG because they may set ever. */ |
| 12577 | tmp_fag = fag_head.next; | |
| 12578 | nds32_fag_unmark_relax (tmp_fag, internal_relocs, irelend); | |
| 12579 | ||
| 35c08157 KLC |
12580 | /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */ |
| 12581 | if (accu < FAG_THRESHOLD | |
| 12582 | || !nds32_fag_mark_relax (link_info, abfd, best_fag, | |
| 12583 | internal_relocs, irelend)) | |
| 12584 | { | |
| 12585 | /* Not worth to do fp-as-gp. */ | |
| 12586 | begin_rel->r_addend |= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG; | |
| 12587 | begin_rel->r_addend &= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG; | |
| 12588 | irel->r_addend |= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG; | |
| 12589 | irel->r_addend &= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG; | |
| 12590 | nds32_fag_free_list (&fag_head); | |
| 12591 | begin_rel = NULL; | |
| 12592 | continue; | |
| 12593 | } | |
| 12594 | ||
| 12595 | /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler, | |
| 12596 | so we use it to record the distance to the reloction of best | |
| 12597 | fp-base. */ | |
| 12598 | dist = best_fag->relas[0] - begin_rel; | |
| 12599 | BFD_ASSERT (dist > 0 && dist < 0xffffff); | |
| 12600 | /* Use high 16 bits of addend to record the _FP_BASE_ matched | |
| 12601 | relocation. And get the base value when relocating. */ | |
| 1c8f6a4d | 12602 | begin_rel->r_addend &= (0x1 << 16) - 1; |
| 35c08157 KLC |
12603 | begin_rel->r_addend |= dist << 16; |
| 12604 | ||
| 12605 | nds32_fag_free_list (&fag_head); | |
| 12606 | begin_rel = NULL; | |
| 12607 | } | |
| 12608 | ||
| 1c8f6a4d | 12609 | if (begin_rel == NULL || ifc_inside) |
| 35c08157 KLC |
12610 | /* Skip if we are not in the region of fp-as-gp. */ |
| 12611 | continue; | |
| 12612 | ||
| 12613 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA15S2_RELA | |
| 12614 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA17S2_RELA) | |
| 12615 | { | |
| 12616 | bfd_vma addr; | |
| 12617 | uint32_t insn; | |
| 12618 | ||
| 12619 | /* A gp-relative access is found. Insert it to the fag-list. */ | |
| 12620 | ||
| 12621 | /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */ | |
| 12622 | insn = bfd_getb32 (contents + irel->r_offset); | |
| 12623 | if (!N32_IS_RT3 (insn)) | |
| 12624 | continue; | |
| 12625 | ||
| 12626 | addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
| 12627 | nds32_fag_insert (&fag_head, addr, irel); | |
| 12628 | } | |
| 12629 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA_FP7U2_RELA) | |
| 12630 | { | |
| 12631 | begin_rel = NULL; | |
| 12632 | } | |
| 1c8f6a4d KLC |
12633 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_17IFC_PCREL_RELA |
| 12634 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_10IFCU_PCREL_RELA) | |
| 12635 | { | |
| 12636 | /* Suppress fp as gp when encounter ifc. */ | |
| 12637 | ifc_inside = TRUE; | |
| 12638 | } | |
| 35c08157 KLC |
12639 | } |
| 12640 | ||
| 12641 | return TRUE; | |
| 12642 | } | |
| 12643 | ||
| 12644 | /* Remove unused `la $fp, _FD_BASE_' instruction. */ | |
| 12645 | ||
| 12646 | static bfd_boolean | |
| 12647 | nds32_fag_remove_unused_fpbase (bfd *abfd, asection *sec, | |
| 12648 | Elf_Internal_Rela *internal_relocs, | |
| 12649 | Elf_Internal_Rela *irelend) | |
| 12650 | { | |
| 12651 | Elf_Internal_Rela *irel; | |
| 12652 | Elf_Internal_Shdr *symtab_hdr; | |
| 12653 | bfd_byte *contents = NULL; | |
| 12654 | nds32_elf_blank_t *relax_blank_list = NULL; | |
| 12655 | bfd_boolean result = TRUE; | |
| 12656 | bfd_boolean unused_region = FALSE; | |
| 12657 | ||
| 12658 | /* | |
| 12659 | NOTE: Disable fp-as-gp if we encounter ifcall relocations. | |
| 12660 | * R_NDS32_17IFC_PCREL_RELA | |
| 12661 | * R_NDS32_10IFCU_PCREL_RELA | |
| 12662 | ||
| 12663 | CASE?????????????? | |
| 12664 | */ | |
| 12665 | ||
| 12666 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
| 0c4bd9d9 | 12667 | nds32_get_section_contents (abfd, sec, &contents, TRUE); |
| 35c08157 KLC |
12668 | |
| 12669 | for (irel = internal_relocs; irel < irelend; irel++) | |
| 12670 | { | |
| 12671 | /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP | |
| 12672 | we marked to in previous pass. | |
| 12673 | DO NOT scan relocations again, since we've alreadly decided it | |
| 12674 | and set the flag. */ | |
| 12675 | const char *syname; | |
| 12676 | int syndx; | |
| 12677 | uint32_t insn; | |
| 12678 | ||
| 12679 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN | |
| 12680 | && (irel->r_addend & R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG)) | |
| 12681 | unused_region = TRUE; | |
| 12682 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END | |
| 12683 | && (irel->r_addend & R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG)) | |
| 12684 | unused_region = FALSE; | |
| 12685 | ||
| 12686 | /* We're not in the region. */ | |
| 12687 | if (!unused_region) | |
| 12688 | continue; | |
| 12689 | ||
| 12690 | /* _FP_BASE_ must be a GLOBAL symbol. */ | |
| 12691 | syndx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
| 12692 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
| 12693 | continue; | |
| 12694 | ||
| 12695 | /* The symbol name must be _FP_BASE_. */ | |
| 12696 | syname = elf_sym_hashes (abfd)[syndx]->root.root.string; | |
| 12697 | if (strcmp (syname, FP_BASE_NAME) != 0) | |
| 12698 | continue; | |
| 12699 | ||
| 12700 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA19S0_RELA) | |
| 12701 | { | |
| 12702 | /* addi.gp $fp, -256 */ | |
| 12703 | insn = bfd_getb32 (contents + irel->r_offset); | |
| 12704 | if (insn != INSN_ADDIGP_TO_FP) | |
| 12705 | continue; | |
| 12706 | } | |
| 12707 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA15S0_RELA) | |
| 12708 | { | |
| 12709 | /* addi $fp, $gp, -256 */ | |
| 12710 | insn = bfd_getb32 (contents + irel->r_offset); | |
| 12711 | if (insn != INSN_ADDI_GP_TO_FP) | |
| 12712 | continue; | |
| 12713 | } | |
| 12714 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_20_RELA) | |
| 12715 | { | |
| 12716 | /* movi $fp, FP_BASE */ | |
| 12717 | insn = bfd_getb32 (contents + irel->r_offset); | |
| 12718 | if (insn != INSN_MOVI_TO_FP) | |
| 12719 | continue; | |
| 12720 | } | |
| 12721 | else | |
| 12722 | continue; | |
| 12723 | ||
| 12724 | /* We got here because a FP_BASE instruction is found. */ | |
| 12725 | if (!insert_nds32_elf_blank_recalc_total | |
| 12726 | (&relax_blank_list, irel->r_offset, 4)) | |
| 12727 | goto error_return; | |
| 12728 | } | |
| 12729 | ||
| 12730 | finish: | |
| 12731 | if (relax_blank_list) | |
| 12732 | { | |
| 12733 | nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list); | |
| 12734 | relax_blank_list = NULL; | |
| 12735 | } | |
| 12736 | return result; | |
| 12737 | ||
| 12738 | error_return: | |
| 12739 | result = FALSE; | |
| 12740 | goto finish; | |
| 12741 | } | |
| 1c8f6a4d KLC |
12742 | |
| 12743 | /* This is a version of bfd_generic_get_relocated_section_contents. | |
| 12744 | We need this variety because relaxation will modify the dwarf | |
| 12745 | infomation. When there is undefined symbol reference error mesage, | |
| 12746 | linker need to dump line number where the symbol be used. However | |
| 12747 | the address is be relaxed, it can not get the original dwarf contents. | |
| 12748 | The variety only modify function call for reading in the section. */ | |
| 12749 | ||
| 12750 | static bfd_byte * | |
| 12751 | nds32_elf_get_relocated_section_contents (bfd *abfd, | |
| 12752 | struct bfd_link_info *link_info, | |
| 12753 | struct bfd_link_order *link_order, | |
| 12754 | bfd_byte *data, | |
| 12755 | bfd_boolean relocatable, | |
| 12756 | asymbol **symbols) | |
| 12757 | { | |
| 12758 | bfd *input_bfd = link_order->u.indirect.section->owner; | |
| 12759 | asection *input_section = link_order->u.indirect.section; | |
| 12760 | long reloc_size; | |
| 12761 | arelent **reloc_vector; | |
| 12762 | long reloc_count; | |
| 12763 | ||
| 12764 | reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section); | |
| 12765 | if (reloc_size < 0) | |
| 12766 | return NULL; | |
| 12767 | ||
| 12768 | /* Read in the section. */ | |
| 0c4bd9d9 | 12769 | if (!nds32_get_section_contents (input_bfd, input_section, &data, FALSE)) |
| 1c8f6a4d KLC |
12770 | return NULL; |
| 12771 | ||
| 12772 | if (reloc_size == 0) | |
| 12773 | return data; | |
| 12774 | ||
| 12775 | reloc_vector = (arelent **) bfd_malloc (reloc_size); | |
| 12776 | if (reloc_vector == NULL) | |
| 12777 | return NULL; | |
| 12778 | ||
| 12779 | reloc_count = bfd_canonicalize_reloc (input_bfd, input_section, | |
| 12780 | reloc_vector, symbols); | |
| 12781 | if (reloc_count < 0) | |
| 12782 | goto error_return; | |
| 12783 | ||
| 12784 | if (reloc_count > 0) | |
| 12785 | { | |
| 12786 | arelent **parent; | |
| 12787 | for (parent = reloc_vector; *parent != NULL; parent++) | |
| 12788 | { | |
| 12789 | char *error_message = NULL; | |
| 12790 | asymbol *symbol; | |
| 12791 | bfd_reloc_status_type r; | |
| 12792 | ||
| 12793 | symbol = *(*parent)->sym_ptr_ptr; | |
| 12794 | if (symbol->section && discarded_section (symbol->section)) | |
| 12795 | { | |
| 12796 | bfd_byte *p; | |
| 12797 | static reloc_howto_type none_howto | |
| 12798 | = HOWTO (0, 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, | |
| 12799 | "unused", FALSE, 0, 0, FALSE); | |
| 12800 | ||
| 12801 | p = data + (*parent)->address * bfd_octets_per_byte (input_bfd); | |
| 12802 | _bfd_clear_contents ((*parent)->howto, input_bfd, input_section, | |
| 12803 | p); | |
| 12804 | (*parent)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
| 12805 | (*parent)->addend = 0; | |
| 12806 | (*parent)->howto = &none_howto; | |
| 12807 | r = bfd_reloc_ok; | |
| 12808 | } | |
| 12809 | else | |
| 12810 | r = bfd_perform_relocation (input_bfd, *parent, data, | |
| 12811 | input_section, | |
| 12812 | relocatable ? abfd : NULL, | |
| 12813 | &error_message); | |
| 12814 | ||
| 12815 | if (relocatable) | |
| 12816 | { | |
| 12817 | asection *os = input_section->output_section; | |
| 12818 | ||
| 12819 | /* A partial link, so keep the relocs. */ | |
| 12820 | os->orelocation[os->reloc_count] = *parent; | |
| 12821 | os->reloc_count++; | |
| 12822 | } | |
| 12823 | ||
| 12824 | if (r != bfd_reloc_ok) | |
| 12825 | { | |
| 12826 | switch (r) | |
| 12827 | { | |
| 12828 | case bfd_reloc_undefined: | |
| 1a72702b AM |
12829 | (*link_info->callbacks->undefined_symbol) |
| 12830 | (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr), | |
| 12831 | input_bfd, input_section, (*parent)->address, TRUE); | |
| 1c8f6a4d KLC |
12832 | break; |
| 12833 | case bfd_reloc_dangerous: | |
| 12834 | BFD_ASSERT (error_message != NULL); | |
| 1a72702b AM |
12835 | (*link_info->callbacks->reloc_dangerous) |
| 12836 | (link_info, error_message, | |
| 12837 | input_bfd, input_section, (*parent)->address); | |
| 1c8f6a4d KLC |
12838 | break; |
| 12839 | case bfd_reloc_overflow: | |
| 1a72702b AM |
12840 | (*link_info->callbacks->reloc_overflow) |
| 12841 | (link_info, NULL, | |
| 12842 | bfd_asymbol_name (*(*parent)->sym_ptr_ptr), | |
| 12843 | (*parent)->howto->name, (*parent)->addend, | |
| 12844 | input_bfd, input_section, (*parent)->address); | |
| 1c8f6a4d KLC |
12845 | break; |
| 12846 | case bfd_reloc_outofrange: | |
| 12847 | /* PR ld/13730: | |
| 12848 | This error can result when processing some partially | |
| 12849 | complete binaries. Do not abort, but issue an error | |
| 12850 | message instead. */ | |
| 12851 | link_info->callbacks->einfo | |
| 695344c0 | 12852 | /* xgettext:c-format */ |
| 1c8f6a4d KLC |
12853 | (_("%X%P: %B(%A): relocation \"%R\" goes out of range\n"), |
| 12854 | abfd, input_section, * parent); | |
| 12855 | goto error_return; | |
| 12856 | ||
| 12857 | default: | |
| 12858 | abort (); | |
| 12859 | break; | |
| 12860 | } | |
| 12861 | } | |
| 12862 | } | |
| 12863 | } | |
| 12864 | ||
| 12865 | free (reloc_vector); | |
| 12866 | return data; | |
| 12867 | ||
| 12868 | error_return: | |
| 12869 | free (reloc_vector); | |
| 12870 | return NULL; | |
| 12871 | } | |
| 35c08157 KLC |
12872 | \f |
| 12873 | /* Link-time IFC relaxation. | |
| 12874 | In this optimization, we chains jump instructions | |
| 12875 | of the same destination with ifcall. */ | |
| 12876 | ||
| 12877 | ||
| 12878 | /* List to save jal and j relocation. */ | |
| 12879 | struct elf_nds32_ifc_symbol_entry | |
| 12880 | { | |
| 12881 | asection *sec; | |
| 12882 | struct elf_link_hash_entry *h; | |
| 12883 | struct elf_nds32_ifc_irel_list *irel_head; | |
| 12884 | unsigned long insn; | |
| 12885 | int times; | |
| 12886 | int enable; /* Apply ifc. */ | |
| 12887 | int ex9_enable; /* Apply ifc after ex9. */ | |
| 12888 | struct elf_nds32_ifc_symbol_entry *next; | |
| 12889 | }; | |
| 12890 | ||
| 12891 | struct elf_nds32_ifc_irel_list | |
| 12892 | { | |
| 12893 | Elf_Internal_Rela *irel; | |
| 12894 | asection *sec; | |
| 12895 | bfd_vma addr; | |
| 12896 | /* If this is set, then it is the last instruction for | |
| 12897 | ifc-chain, so it must be keep for the actual branching. */ | |
| 12898 | int keep; | |
| 12899 | struct elf_nds32_ifc_irel_list *next; | |
| 12900 | }; | |
| 12901 | ||
| 12902 | static struct elf_nds32_ifc_symbol_entry *ifc_symbol_head = NULL; | |
| 12903 | ||
| 12904 | /* Insert symbol of jal and j for ifc. */ | |
| 12905 | ||
| 12906 | static void | |
| 12907 | nds32_elf_ifc_insert_symbol (asection *sec, | |
| 12908 | struct elf_link_hash_entry *h, | |
| 12909 | Elf_Internal_Rela *irel, | |
| 12910 | unsigned long insn) | |
| 12911 | { | |
| 12912 | struct elf_nds32_ifc_symbol_entry *ptr = ifc_symbol_head; | |
| 12913 | ||
| 12914 | /* Check there is target of existing entry the same as the new one. */ | |
| 12915 | while (ptr != NULL) | |
| 12916 | { | |
| 12917 | if (((h == NULL && ptr->sec == sec | |
| 12918 | && ELF32_R_SYM (ptr->irel_head->irel->r_info) == ELF32_R_SYM (irel->r_info) | |
| 12919 | && ptr->irel_head->irel->r_addend == irel->r_addend) | |
| 12920 | || h != NULL) | |
| 12921 | && ptr->h == h | |
| 12922 | && ptr->insn == insn) | |
| 12923 | { | |
| 12924 | /* The same target exist, so insert into list. */ | |
| 12925 | struct elf_nds32_ifc_irel_list *irel_list = ptr->irel_head; | |
| 12926 | ||
| 12927 | while (irel_list->next != NULL) | |
| 12928 | irel_list = irel_list->next; | |
| 12929 | irel_list->next = bfd_malloc (sizeof (struct elf_nds32_ifc_irel_list)); | |
| 12930 | irel_list = irel_list->next; | |
| 12931 | irel_list->irel = irel; | |
| 12932 | irel_list->keep = 1; | |
| 12933 | ||
| 12934 | if (h == NULL) | |
| 12935 | irel_list->sec = NULL; | |
| 12936 | else | |
| 12937 | irel_list->sec = sec; | |
| 12938 | irel_list->next = NULL; | |
| 12939 | return; | |
| 12940 | } | |
| 12941 | if (ptr->next == NULL) | |
| 12942 | break; | |
| 12943 | ptr = ptr->next; | |
| 12944 | } | |
| 12945 | ||
| 12946 | /* There is no same target entry, so build a new one. */ | |
| 12947 | if (ifc_symbol_head == NULL) | |
| 12948 | { | |
| 12949 | ifc_symbol_head = bfd_malloc (sizeof (struct elf_nds32_ifc_symbol_entry)); | |
| 12950 | ptr = ifc_symbol_head; | |
| 12951 | } | |
| 12952 | else | |
| 12953 | { | |
| 12954 | ptr->next = bfd_malloc (sizeof (struct elf_nds32_ifc_symbol_entry)); | |
| 12955 | ptr = ptr->next; | |
| 12956 | } | |
| 12957 | ||
| 12958 | ptr->h = h; | |
| 12959 | ptr->irel_head = bfd_malloc (sizeof (struct elf_nds32_ifc_irel_list)); | |
| 12960 | ptr->irel_head->irel = irel; | |
| 12961 | ptr->insn = insn; | |
| 12962 | ptr->irel_head->keep = 1; | |
| 12963 | ||
| 12964 | if (h == NULL) | |
| 12965 | { | |
| 12966 | /* Local symbols. */ | |
| 12967 | ptr->sec = sec; | |
| 12968 | ptr->irel_head->sec = NULL; | |
| 12969 | } | |
| 12970 | else | |
| 12971 | { | |
| 12972 | /* Global symbol. */ | |
| 12973 | ptr->sec = NULL; | |
| 12974 | ptr->irel_head->sec = sec; | |
| 12975 | } | |
| 12976 | ||
| 12977 | ptr->irel_head->next = NULL; | |
| 12978 | ptr->times = 0; | |
| 12979 | ptr->enable = 0; | |
| 12980 | ptr->ex9_enable = 0; | |
| 12981 | ptr->next = NULL; | |
| 12982 | } | |
| 12983 | ||
| 12984 | /* Gather all jal and j instructions. */ | |
| 12985 | ||
| 12986 | static bfd_boolean | |
| 12987 | nds32_elf_ifc_calc (struct bfd_link_info *info, | |
| 12988 | bfd *abfd, asection *sec) | |
| 12989 | { | |
| 12990 | Elf_Internal_Rela *internal_relocs; | |
| 12991 | Elf_Internal_Rela *irelend; | |
| 12992 | Elf_Internal_Rela *irel; | |
| 12993 | Elf_Internal_Shdr *symtab_hdr; | |
| 12994 | bfd_byte *contents = NULL; | |
| 1c8f6a4d | 12995 | uint32_t insn, insn_with_reg; |
| 35c08157 KLC |
12996 | unsigned long r_symndx; |
| 12997 | struct elf_link_hash_entry *h; | |
| 12998 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (abfd); | |
| 12999 | struct elf_nds32_link_hash_table *table; | |
| 13000 | bfd_boolean ifc_loop_aware; | |
| 13001 | ||
| 13002 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, | |
| 13003 | TRUE /* keep_memory */); | |
| 13004 | irelend = internal_relocs + sec->reloc_count; | |
| 13005 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
| 13006 | ||
| 13007 | /* Check if the object enable ifc. */ | |
| 13008 | irel = find_relocs_at_address (internal_relocs, internal_relocs, irelend, | |
| 13009 | R_NDS32_RELAX_ENTRY); | |
| 13010 | ||
| 13011 | if (irel == NULL | |
| 13012 | || irel >= irelend | |
| 13013 | || ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_ENTRY | |
| 13014 | || (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY | |
| 13015 | && !(irel->r_addend & R_NDS32_RELAX_ENTRY_IFC_FLAG))) | |
| 13016 | return TRUE; | |
| 13017 | ||
| 0c4bd9d9 | 13018 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE)) |
| 35c08157 KLC |
13019 | return FALSE; |
| 13020 | ||
| 13021 | table = nds32_elf_hash_table (info); | |
| 13022 | ifc_loop_aware = table->ifc_loop_aware; | |
| 13023 | while (irel != NULL && irel < irelend) | |
| 13024 | { | |
| 13025 | /* Traverse all relocation and gather all of them to build the list. */ | |
| 13026 | ||
| 13027 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN) | |
| 13028 | { | |
| 13029 | if (ifc_loop_aware == 1 | |
| 13030 | && (irel->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG) != 0) | |
| 13031 | { | |
| 13032 | /* Check the region if loop or not. If it is true and | |
| 13033 | ifc-loop-aware is true, ignore the region till region end. */ | |
| 13034 | while (irel != NULL | |
| 13035 | && irel < irelend | |
| 13036 | && (ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_END | |
| 13037 | || (irel->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG) != 0)) | |
| 13038 | irel++; | |
| 13039 | } | |
| 13040 | } | |
| 13041 | ||
| 13042 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_25_PCREL_RELA) | |
| 13043 | { | |
| 13044 | insn = bfd_getb32 (contents + irel->r_offset); | |
| 13045 | nds32_elf_get_insn_with_reg (irel, insn, &insn_with_reg); | |
| 13046 | r_symndx = ELF32_R_SYM (irel->r_info); | |
| 13047 | if (r_symndx < symtab_hdr->sh_info) | |
| 13048 | { | |
| 13049 | /* Local symbol. */ | |
| 13050 | nds32_elf_ifc_insert_symbol (sec, NULL, irel, insn_with_reg); | |
| 13051 | } | |
| 13052 | else | |
| 13053 | { | |
| 13054 | /* External symbol. */ | |
| 13055 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| 13056 | nds32_elf_ifc_insert_symbol (sec, h, irel, insn_with_reg); | |
| 13057 | } | |
| 13058 | } | |
| 13059 | irel++; | |
| 13060 | } | |
| 13061 | return TRUE; | |
| 13062 | } | |
| 13063 | ||
| 13064 | /* Determine whether j and jal should be substituted. */ | |
| 13065 | ||
| 13066 | static void | |
| 13067 | nds32_elf_ifc_filter (struct bfd_link_info *info) | |
| 13068 | { | |
| 13069 | struct elf_nds32_ifc_symbol_entry *ptr = ifc_symbol_head; | |
| 13070 | struct elf_nds32_ifc_irel_list *irel_ptr = NULL; | |
| 13071 | struct elf_nds32_ifc_irel_list *irel_keeper = NULL; | |
| 13072 | struct elf_nds32_link_hash_table *table; | |
| 13073 | int target_optimize; | |
| 13074 | bfd_vma address; | |
| 13075 | ||
| 13076 | table = nds32_elf_hash_table (info); | |
| 13077 | target_optimize = table->target_optimize; | |
| 13078 | while (ptr) | |
| 13079 | { | |
| 13080 | irel_ptr = ptr->irel_head; | |
| 13081 | if (ptr->h == NULL) | |
| 13082 | { | |
| 13083 | /* Local symbol. */ | |
| 13084 | irel_keeper = irel_ptr; | |
| 13085 | while (irel_ptr && irel_ptr->next) | |
| 13086 | { | |
| 13087 | /* Check there is jump target can be used. */ | |
| 13088 | if ((irel_ptr->next->irel->r_offset | |
| 13089 | - irel_keeper->irel->r_offset) > 1022) | |
| 13090 | irel_keeper = irel_ptr->next; | |
| 13091 | else | |
| 13092 | { | |
| 13093 | ptr->enable = 1; | |
| 13094 | irel_ptr->keep = 0; | |
| 13095 | } | |
| 13096 | irel_ptr = irel_ptr->next; | |
| 13097 | } | |
| 13098 | } | |
| 13099 | else | |
| 13100 | { | |
| 1c8f6a4d KLC |
13101 | /* Global symbol. */ |
| 13102 | /* We have to get the absolute address and decide | |
| 13103 | whether to keep it or not. */ | |
| 35c08157 KLC |
13104 | while (irel_ptr) |
| 13105 | { | |
| 13106 | address = (irel_ptr->irel->r_offset | |
| 13107 | + irel_ptr->sec->output_section->vma | |
| 13108 | + irel_ptr->sec->output_offset); | |
| 13109 | irel_ptr->addr = address; | |
| 13110 | irel_ptr = irel_ptr->next; | |
| 13111 | } | |
| 13112 | ||
| 13113 | irel_ptr = ptr->irel_head; | |
| 13114 | while (irel_ptr) | |
| 13115 | { | |
| 1c8f6a4d | 13116 | /* Sort by address. */ |
| 35c08157 KLC |
13117 | struct elf_nds32_ifc_irel_list *irel_dest = irel_ptr; |
| 13118 | struct elf_nds32_ifc_irel_list *irel_temp = irel_ptr; | |
| 13119 | struct elf_nds32_ifc_irel_list *irel_ptr_prev = NULL; | |
| 13120 | struct elf_nds32_ifc_irel_list *irel_dest_prev = NULL; | |
| 13121 | ||
| 1c8f6a4d | 13122 | /* Get the smallest one. */ |
| 35c08157 KLC |
13123 | while (irel_temp->next) |
| 13124 | { | |
| 13125 | if (irel_temp->next->addr < irel_dest->addr) | |
| 13126 | { | |
| 13127 | irel_dest_prev = irel_temp; | |
| 13128 | irel_dest = irel_temp->next; | |
| 13129 | } | |
| 13130 | irel_temp = irel_temp->next; | |
| 13131 | } | |
| 1c8f6a4d | 13132 | |
| 35c08157 KLC |
13133 | if (irel_dest != irel_ptr) |
| 13134 | { | |
| 13135 | if (irel_ptr_prev) | |
| 13136 | irel_ptr_prev->next = irel_dest; | |
| 13137 | if (irel_dest_prev) | |
| 13138 | irel_dest_prev->next = irel_ptr; | |
| 13139 | irel_temp = irel_ptr->next; | |
| 13140 | irel_ptr->next = irel_dest->next; | |
| 13141 | irel_dest->next = irel_temp; | |
| 13142 | } | |
| 13143 | irel_ptr_prev = irel_ptr; | |
| 13144 | irel_ptr = irel_ptr->next; | |
| 13145 | } | |
| 13146 | ||
| 13147 | irel_ptr = ptr->irel_head; | |
| 13148 | irel_keeper = irel_ptr; | |
| 13149 | while (irel_ptr && irel_ptr->next) | |
| 13150 | { | |
| 13151 | if ((irel_ptr->next->addr - irel_keeper->addr) > 1022) | |
| 13152 | irel_keeper = irel_ptr->next; | |
| 13153 | else | |
| 13154 | { | |
| 13155 | ptr->enable = 1; | |
| 13156 | irel_ptr->keep = 0; | |
| 13157 | } | |
| 13158 | irel_ptr = irel_ptr->next; | |
| 13159 | } | |
| 13160 | } | |
| 13161 | ||
| 1c8f6a4d | 13162 | /* Ex9 enable. Reserve it for ex9. */ |
| 35c08157 KLC |
13163 | if ((target_optimize & NDS32_RELAX_EX9_ON) |
| 13164 | && ptr->irel_head != irel_keeper) | |
| 13165 | ptr->enable = 0; | |
| 13166 | ptr = ptr->next; | |
| 13167 | } | |
| 13168 | } | |
| 13169 | ||
| 13170 | /* Determine whether j and jal should be substituted after ex9 done. */ | |
| 13171 | ||
| 13172 | static void | |
| 13173 | nds32_elf_ifc_filter_after_ex9 (void) | |
| 13174 | { | |
| 13175 | struct elf_nds32_ifc_symbol_entry *ptr = ifc_symbol_head; | |
| 13176 | struct elf_nds32_ifc_irel_list *irel_ptr = NULL; | |
| 13177 | ||
| 13178 | while (ptr) | |
| 13179 | { | |
| 13180 | if (ptr->enable == 0) | |
| 13181 | { | |
| 13182 | /* Check whether ifc is applied or not. */ | |
| 13183 | irel_ptr = ptr->irel_head; | |
| 13184 | ptr->ex9_enable = 1; | |
| 13185 | while (irel_ptr) | |
| 13186 | { | |
| 13187 | if (ELF32_R_TYPE (irel_ptr->irel->r_info) == R_NDS32_TRAN) | |
| 13188 | { | |
| 13189 | /* Ex9 already. */ | |
| 13190 | ptr->ex9_enable = 0; | |
| 13191 | break; | |
| 13192 | } | |
| 13193 | irel_ptr = irel_ptr->next; | |
| 13194 | } | |
| 13195 | } | |
| 13196 | ptr = ptr->next; | |
| 13197 | } | |
| 13198 | } | |
| 13199 | ||
| 13200 | /* Wrapper to do ifc relaxation. */ | |
| 13201 | ||
| 13202 | bfd_boolean | |
| 13203 | nds32_elf_ifc_finish (struct bfd_link_info *info) | |
| 13204 | { | |
| 13205 | int relax_status; | |
| 13206 | struct elf_nds32_link_hash_table *table; | |
| 13207 | ||
| 13208 | table = nds32_elf_hash_table (info); | |
| 13209 | relax_status = table->relax_status; | |
| 13210 | ||
| 13211 | if (!(relax_status & NDS32_RELAX_JUMP_IFC_DONE)) | |
| 13212 | nds32_elf_ifc_filter (info); | |
| 13213 | else | |
| 13214 | nds32_elf_ifc_filter_after_ex9 (); | |
| 13215 | ||
| 13216 | if (!nds32_elf_ifc_replace (info)) | |
| 13217 | return FALSE; | |
| 13218 | ||
| 13219 | if (table) | |
| 13220 | table->relax_status |= NDS32_RELAX_JUMP_IFC_DONE; | |
| 13221 | return TRUE; | |
| 13222 | } | |
| 13223 | ||
| 13224 | /* Traverse the result of ifc filter and replace it with ifcall9. */ | |
| 13225 | ||
| 13226 | static bfd_boolean | |
| 13227 | nds32_elf_ifc_replace (struct bfd_link_info *info) | |
| 13228 | { | |
| 13229 | struct elf_nds32_ifc_symbol_entry *ptr = ifc_symbol_head; | |
| 13230 | struct elf_nds32_ifc_irel_list *irel_ptr = NULL; | |
| 13231 | nds32_elf_blank_t *relax_blank_list = NULL; | |
| 13232 | bfd_byte *contents = NULL; | |
| 13233 | Elf_Internal_Rela *internal_relocs; | |
| 13234 | Elf_Internal_Rela *irel; | |
| 13235 | Elf_Internal_Rela *irelend; | |
| 13236 | unsigned short insn16 = INSN_IFCALL9; | |
| 13237 | struct elf_nds32_link_hash_table *table; | |
| 13238 | int relax_status; | |
| 13239 | ||
| 13240 | table = nds32_elf_hash_table (info); | |
| 13241 | relax_status = table->relax_status; | |
| 13242 | ||
| 13243 | while (ptr) | |
| 13244 | { | |
| 13245 | /* Traverse the ifc gather list, and replace the | |
| 13246 | filter entries by ifcall9. */ | |
| 13247 | if ((!(relax_status & NDS32_RELAX_JUMP_IFC_DONE) && ptr->enable == 1) | |
| 1c8f6a4d KLC |
13248 | || ((relax_status & NDS32_RELAX_JUMP_IFC_DONE) |
| 13249 | && ptr->ex9_enable == 1)) | |
| 35c08157 KLC |
13250 | { |
| 13251 | irel_ptr = ptr->irel_head; | |
| 13252 | if (ptr->h == NULL) | |
| 13253 | { | |
| 13254 | /* Local symbol. */ | |
| 13255 | internal_relocs = _bfd_elf_link_read_relocs | |
| 13256 | (ptr->sec->owner, ptr->sec, NULL, NULL, TRUE /* keep_memory */); | |
| 13257 | irelend = internal_relocs + ptr->sec->reloc_count; | |
| 13258 | ||
| 1c8f6a4d | 13259 | if (!nds32_get_section_contents (ptr->sec->owner, ptr->sec, |
| 0c4bd9d9 | 13260 | &contents, TRUE)) |
| 35c08157 KLC |
13261 | return FALSE; |
| 13262 | ||
| 13263 | while (irel_ptr) | |
| 13264 | { | |
| 13265 | if (irel_ptr->keep == 0 && irel_ptr->next) | |
| 13266 | { | |
| 1c8f6a4d | 13267 | /* The one can be replaced. We have to check whether |
| 35c08157 KLC |
13268 | there is any alignment point in the region. */ |
| 13269 | irel = irel_ptr->irel; | |
| 1c8f6a4d KLC |
13270 | while (((irel_ptr->next->keep == 0 |
| 13271 | && irel < irel_ptr->next->irel) | |
| 35c08157 KLC |
13272 | || (irel_ptr->next->keep == 1 && irel < irelend)) |
| 13273 | && !(ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
| 13274 | && (irel->r_addend & 0x1f) == 2)) | |
| 13275 | irel++; | |
| 13276 | if (irel >= irelend | |
| 13277 | || !(ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
| 13278 | && (irel->r_addend & 0x1f) == 2 | |
| 1c8f6a4d KLC |
13279 | && ((irel->r_offset - get_nds32_elf_blank_total |
| 13280 | (&relax_blank_list, irel->r_offset, 1)) | |
| 13281 | & 0x02) == 0)) | |
| 35c08157 KLC |
13282 | { |
| 13283 | /* Replace by ifcall9. */ | |
| 13284 | bfd_putb16 (insn16, contents + irel_ptr->irel->r_offset); | |
| 13285 | if (!insert_nds32_elf_blank_recalc_total | |
| 13286 | (&relax_blank_list, irel_ptr->irel->r_offset + 2, 2)) | |
| 13287 | return FALSE; | |
| 13288 | irel_ptr->irel->r_info = | |
| 1c8f6a4d KLC |
13289 | ELF32_R_INFO (ELF32_R_SYM (irel_ptr->irel->r_info), |
| 13290 | R_NDS32_10IFCU_PCREL_RELA); | |
| 35c08157 KLC |
13291 | } |
| 13292 | } | |
| 13293 | irel_ptr = irel_ptr->next; | |
| 13294 | } | |
| 13295 | ||
| 13296 | /* Delete the redundant code. */ | |
| 13297 | if (relax_blank_list) | |
| 13298 | { | |
| 13299 | nds32_elf_relax_delete_blanks (ptr->sec->owner, ptr->sec, | |
| 13300 | relax_blank_list); | |
| 13301 | relax_blank_list = NULL; | |
| 13302 | } | |
| 13303 | } | |
| 13304 | else | |
| 13305 | { | |
| 13306 | /* Global symbol. */ | |
| 13307 | while (irel_ptr) | |
| 13308 | { | |
| 13309 | if (irel_ptr->keep == 0 && irel_ptr->next) | |
| 13310 | { | |
| 13311 | /* The one can be replaced, and we have to check | |
| 13312 | whether there is any alignment point in the region. */ | |
| 13313 | internal_relocs = _bfd_elf_link_read_relocs | |
| 13314 | (irel_ptr->sec->owner, irel_ptr->sec, NULL, NULL, | |
| 13315 | TRUE /* keep_memory */); | |
| 13316 | irelend = internal_relocs + irel_ptr->sec->reloc_count; | |
| 0c4bd9d9 KLC |
13317 | if (!nds32_get_section_contents (irel_ptr->sec->owner, |
| 13318 | irel_ptr->sec, &contents, | |
| 13319 | TRUE)) | |
| 35c08157 KLC |
13320 | return FALSE; |
| 13321 | ||
| 13322 | irel = irel_ptr->irel; | |
| 13323 | while (((irel_ptr->sec == irel_ptr->next->sec | |
| 13324 | && irel_ptr->next->keep == 0 | |
| 13325 | && irel < irel_ptr->next->irel) | |
| 13326 | || ((irel_ptr->sec != irel_ptr->next->sec | |
| 13327 | || irel_ptr->next->keep == 1) | |
| 13328 | && irel < irelend)) | |
| 13329 | && !(ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
| 13330 | && (irel->r_addend & 0x1f) == 2)) | |
| 13331 | irel++; | |
| 13332 | if (irel >= irelend | |
| 13333 | || !(ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
| 13334 | && (irel->r_addend & 0x1f) == 2 | |
| 13335 | && ((irel->r_offset | |
| 13336 | - get_nds32_elf_blank_total (&relax_blank_list, | |
| 13337 | irel->r_offset, 1)) & 0x02) == 0)) | |
| 13338 | { | |
| 13339 | /* Replace by ifcall9. */ | |
| 13340 | bfd_putb16 (insn16, contents + irel_ptr->irel->r_offset); | |
| 13341 | if (!insert_nds32_elf_blank_recalc_total | |
| 13342 | (&relax_blank_list, irel_ptr->irel->r_offset + 2, 2)) | |
| 13343 | return FALSE; | |
| 13344 | ||
| 13345 | /* Delete the redundant code, and clear the relocation. */ | |
| 13346 | nds32_elf_relax_delete_blanks (irel_ptr->sec->owner, | |
| 13347 | irel_ptr->sec, | |
| 13348 | relax_blank_list); | |
| 13349 | irel_ptr->irel->r_info = | |
| 1c8f6a4d KLC |
13350 | ELF32_R_INFO (ELF32_R_SYM (irel_ptr->irel->r_info), |
| 13351 | R_NDS32_10IFCU_PCREL_RELA); | |
| 35c08157 KLC |
13352 | relax_blank_list = NULL; |
| 13353 | } | |
| 13354 | } | |
| 13355 | ||
| 13356 | irel_ptr = irel_ptr->next; | |
| 13357 | } | |
| 13358 | } | |
| 13359 | } | |
| 13360 | ptr = ptr->next; | |
| 13361 | } | |
| 13362 | ||
| 13363 | return TRUE; | |
| 13364 | } | |
| 13365 | ||
| 13366 | /* Relocate ifcall. */ | |
| 13367 | ||
| 1c8f6a4d | 13368 | static bfd_boolean |
| 35c08157 KLC |
13369 | nds32_elf_ifc_reloc (void) |
| 13370 | { | |
| 13371 | struct elf_nds32_ifc_symbol_entry *ptr = ifc_symbol_head; | |
| 13372 | struct elf_nds32_ifc_irel_list *irel_ptr = NULL; | |
| 13373 | struct elf_nds32_ifc_irel_list *irel_keeper = NULL; | |
| 13374 | bfd_vma relocation, address; | |
| 13375 | unsigned short insn16; | |
| 35c08157 | 13376 | bfd_byte *contents = NULL; |
| 1c8f6a4d KLC |
13377 | static bfd_boolean done = FALSE; |
| 13378 | ||
| 13379 | if (done) | |
| 13380 | return TRUE; | |
| 13381 | ||
| 13382 | done = TRUE; | |
| 35c08157 KLC |
13383 | |
| 13384 | while (ptr) | |
| 13385 | { | |
| 1c8f6a4d | 13386 | /* Check the entry is enable ifcall. */ |
| 35c08157 KLC |
13387 | if (ptr->enable == 1 || ptr->ex9_enable == 1) |
| 13388 | { | |
| 1c8f6a4d | 13389 | /* Get the reserve jump. */ |
| 35c08157 KLC |
13390 | irel_ptr = ptr->irel_head; |
| 13391 | while (irel_ptr) | |
| 13392 | { | |
| 13393 | if (irel_ptr->keep == 1) | |
| 13394 | { | |
| 13395 | irel_keeper = irel_ptr; | |
| 13396 | break; | |
| 13397 | } | |
| 13398 | irel_ptr = irel_ptr->next; | |
| 13399 | } | |
| 13400 | ||
| 13401 | irel_ptr = ptr->irel_head; | |
| 13402 | if (ptr->h == NULL) | |
| 13403 | { | |
| 13404 | /* Local symbol. */ | |
| 0c4bd9d9 KLC |
13405 | if (!nds32_get_section_contents (ptr->sec->owner, ptr->sec, |
| 13406 | &contents, TRUE)) | |
| 35c08157 KLC |
13407 | return FALSE; |
| 13408 | ||
| 13409 | while (irel_ptr) | |
| 13410 | { | |
| 13411 | if (irel_ptr->keep == 0 | |
| 1c8f6a4d | 13412 | && ELF32_R_TYPE (irel_ptr->irel->r_info) == R_NDS32_10IFCU_PCREL_RELA) |
| 35c08157 KLC |
13413 | { |
| 13414 | relocation = irel_keeper->irel->r_offset; | |
| 13415 | relocation = relocation - irel_ptr->irel->r_offset; | |
| 13416 | while (irel_keeper && relocation > 1022) | |
| 13417 | { | |
| 13418 | irel_keeper = irel_keeper->next; | |
| 13419 | if (irel_keeper && irel_keeper->keep == 1) | |
| 13420 | { | |
| 13421 | relocation = irel_keeper->irel->r_offset; | |
| 13422 | relocation = relocation - irel_ptr->irel->r_offset; | |
| 13423 | } | |
| 13424 | } | |
| 13425 | if (relocation > 1022) | |
| 13426 | { | |
| 13427 | /* Double check. */ | |
| 13428 | irel_keeper = ptr->irel_head; | |
| 13429 | while (irel_keeper) | |
| 13430 | { | |
| 13431 | if (irel_keeper->keep == 1) | |
| 13432 | { | |
| 13433 | relocation = irel_keeper->irel->r_offset; | |
| 13434 | relocation = relocation - irel_ptr->irel->r_offset; | |
| 13435 | } | |
| 13436 | if (relocation <= 1022) | |
| 13437 | break; | |
| 13438 | irel_keeper = irel_keeper->next; | |
| 13439 | } | |
| 13440 | if (!irel_keeper) | |
| 13441 | return FALSE; | |
| 13442 | } | |
| 1c8f6a4d KLC |
13443 | irel_ptr->irel->r_info = |
| 13444 | ELF32_R_INFO (ELF32_R_SYM (irel_ptr->irel->r_info), | |
| 13445 | R_NDS32_NONE); | |
| 35c08157 KLC |
13446 | insn16 = INSN_IFCALL9 | (relocation >> 1); |
| 13447 | bfd_putb16 (insn16, contents + irel_ptr->irel->r_offset); | |
| 13448 | } | |
| 13449 | irel_ptr = irel_ptr->next; | |
| 13450 | } | |
| 13451 | } | |
| 13452 | else | |
| 13453 | { | |
| 13454 | /* Global symbol. */ | |
| 13455 | while (irel_ptr) | |
| 13456 | { | |
| 13457 | if (irel_ptr->keep == 0 | |
| 1c8f6a4d | 13458 | && ELF32_R_TYPE (irel_ptr->irel->r_info) == R_NDS32_10IFCU_PCREL_RELA) |
| 35c08157 | 13459 | { |
| 1c8f6a4d | 13460 | /* Get the distance between ifcall and jump. */ |
| 35c08157 KLC |
13461 | relocation = (irel_keeper->irel->r_offset |
| 13462 | + irel_keeper->sec->output_section->vma | |
| 13463 | + irel_keeper->sec->output_offset); | |
| 13464 | address = (irel_ptr->irel->r_offset | |
| 13465 | + irel_ptr->sec->output_section->vma | |
| 13466 | + irel_ptr->sec->output_offset); | |
| 13467 | relocation = relocation - address; | |
| 1c8f6a4d KLC |
13468 | |
| 13469 | /* The distance is over ragne, find callee again. */ | |
| 35c08157 KLC |
13470 | while (irel_keeper && relocation > 1022) |
| 13471 | { | |
| 13472 | irel_keeper = irel_keeper->next; | |
| 13473 | if (irel_keeper && irel_keeper->keep ==1) | |
| 13474 | { | |
| 13475 | relocation = (irel_keeper->irel->r_offset | |
| 13476 | + irel_keeper->sec->output_section->vma | |
| 13477 | + irel_keeper->sec->output_offset); | |
| 13478 | relocation = relocation - address; | |
| 13479 | } | |
| 13480 | } | |
| 13481 | ||
| 13482 | if (relocation > 1022) | |
| 13483 | { | |
| 13484 | /* Double check. */ | |
| 13485 | irel_keeper = ptr->irel_head; | |
| 13486 | while (irel_keeper) | |
| 13487 | { | |
| 13488 | if (irel_keeper->keep == 1) | |
| 13489 | { | |
| 13490 | ||
| 13491 | relocation = (irel_keeper->irel->r_offset | |
| 13492 | + irel_keeper->sec->output_section->vma | |
| 13493 | + irel_keeper->sec->output_offset); | |
| 13494 | relocation = relocation - address; | |
| 13495 | } | |
| 13496 | if (relocation <= 1022) | |
| 13497 | break; | |
| 13498 | irel_keeper = irel_keeper->next; | |
| 13499 | } | |
| 13500 | if (!irel_keeper) | |
| 13501 | return FALSE; | |
| 13502 | } | |
| 13503 | if (!nds32_get_section_contents | |
| 0c4bd9d9 | 13504 | (irel_ptr->sec->owner, irel_ptr->sec, &contents, TRUE)) |
| 1c8f6a4d KLC |
13505 | return FALSE; |
| 13506 | insn16 = INSN_IFCALL9 | (relocation >> 1); | |
| 13507 | bfd_putb16 (insn16, contents + irel_ptr->irel->r_offset); | |
| 13508 | irel_ptr->irel->r_info = | |
| 13509 | ELF32_R_INFO (ELF32_R_SYM (irel_ptr->irel->r_info), | |
| 13510 | R_NDS32_NONE); | |
| 35c08157 KLC |
13511 | } |
| 13512 | irel_ptr =irel_ptr->next; | |
| 13513 | } | |
| 13514 | } | |
| 13515 | } | |
| 13516 | ptr = ptr->next; | |
| 13517 | } | |
| 13518 | ||
| 13519 | return TRUE; | |
| 13520 | } | |
| 13521 | ||
| 13522 | /* End of IFC relaxation. */ | |
| 13523 | \f | |
| 13524 | /* EX9 Instruction Table Relaxation. */ | |
| 13525 | ||
| 13526 | /* Global hash list. */ | |
| 13527 | struct elf_link_hash_entry_list | |
| 13528 | { | |
| 13529 | struct elf_link_hash_entry *h; | |
| 13530 | struct elf_link_hash_entry_list *next; | |
| 13531 | }; | |
| 13532 | ||
| 13533 | /* Save different destination but same insn. */ | |
| 13534 | struct elf_link_hash_entry_mul_list | |
| 13535 | { | |
| 13536 | /* Global symbol times. */ | |
| 13537 | int times; | |
| 13538 | /* Save relocation for each global symbol but useful?? */ | |
| 13539 | Elf_Internal_Rela *irel; | |
| 13540 | /* For sethi, two sethi may have the same high-part but different low-parts. */ | |
| 13541 | Elf_Internal_Rela rel_backup; | |
| 13542 | struct elf_link_hash_entry_list *h_list; | |
| 13543 | struct elf_link_hash_entry_mul_list *next; | |
| 13544 | }; | |
| 13545 | ||
| 13546 | /* Instruction hash table. */ | |
| 13547 | struct elf_nds32_code_hash_entry | |
| 13548 | { | |
| 13549 | struct bfd_hash_entry root; | |
| 13550 | int times; | |
| 13551 | /* For insn that can use relocation or constant ex: sethi. */ | |
| 13552 | int const_insn; | |
| 13553 | asection *sec; | |
| 13554 | struct elf_link_hash_entry_mul_list *m_list; | |
| 13555 | /* Using r_addend. */ | |
| 13556 | Elf_Internal_Rela *irel; | |
| 13557 | /* Using r_info. */ | |
| 13558 | Elf_Internal_Rela rel_backup; | |
| 13559 | }; | |
| 13560 | ||
| 13561 | /* Instruction count list. */ | |
| 13562 | struct elf_nds32_insn_times_entry | |
| 13563 | { | |
| 13564 | const char *string; | |
| 13565 | int times; | |
| 13566 | int order; | |
| 13567 | asection *sec; | |
| 13568 | struct elf_link_hash_entry_mul_list *m_list; | |
| 13569 | Elf_Internal_Rela *irel; | |
| 13570 | Elf_Internal_Rela rel_backup; | |
| 13571 | struct elf_nds32_insn_times_entry *next; | |
| 13572 | }; | |
| 13573 | ||
| 13574 | /* J and JAL symbol list. */ | |
| 13575 | struct elf_nds32_symbol_entry | |
| 13576 | { | |
| 13577 | char *string; | |
| 13578 | unsigned long insn; | |
| 13579 | struct elf_nds32_symbol_entry *next; | |
| 13580 | }; | |
| 13581 | ||
| 13582 | /* Relocation list. */ | |
| 13583 | struct elf_nds32_irel_entry | |
| 13584 | { | |
| 13585 | Elf_Internal_Rela *irel; | |
| 13586 | struct elf_nds32_irel_entry *next; | |
| 13587 | }; | |
| 13588 | ||
| 13589 | /* ex9.it insn need to be fixed. */ | |
| 13590 | struct elf_nds32_ex9_refix | |
| 13591 | { | |
| 13592 | Elf_Internal_Rela *irel; | |
| 13593 | asection *sec; | |
| 13594 | struct elf_link_hash_entry *h; | |
| 13595 | int order; | |
| 13596 | struct elf_nds32_ex9_refix *next; | |
| 13597 | }; | |
| 13598 | ||
| 13599 | static struct bfd_hash_table ex9_code_table; | |
| 13600 | static struct elf_nds32_insn_times_entry *ex9_insn_head = NULL; | |
| 13601 | static struct elf_nds32_ex9_refix *ex9_refix_head = NULL; | |
| 13602 | ||
| 13603 | /* EX9 hash function. */ | |
| 13604 | ||
| 13605 | static struct bfd_hash_entry * | |
| 13606 | nds32_elf_code_hash_newfunc (struct bfd_hash_entry *entry, | |
| 13607 | struct bfd_hash_table *table, | |
| 13608 | const char *string) | |
| 13609 | { | |
| 13610 | struct elf_nds32_code_hash_entry *ret; | |
| 13611 | ||
| 13612 | /* Allocate the structure if it has not already been allocated by a | |
| 13613 | subclass. */ | |
| 13614 | if (entry == NULL) | |
| 13615 | { | |
| 13616 | entry = (struct bfd_hash_entry *) | |
| 13617 | bfd_hash_allocate (table, sizeof (*ret)); | |
| 13618 | if (entry == NULL) | |
| 13619 | return entry; | |
| 13620 | } | |
| 13621 | ||
| 13622 | /* Call the allocation method of the superclass. */ | |
| 13623 | entry = bfd_hash_newfunc (entry, table, string); | |
| 13624 | if (entry == NULL) | |
| 13625 | return entry; | |
| 13626 | ||
| 13627 | ret = (struct elf_nds32_code_hash_entry*) entry; | |
| 13628 | ret->times = 0; | |
| 13629 | ret->const_insn = 0; | |
| 13630 | ret->m_list = NULL; | |
| 13631 | ret->sec = NULL; | |
| 13632 | ret->irel = NULL; | |
| 13633 | return &ret->root; | |
| 13634 | } | |
| 13635 | ||
| 13636 | /* Insert ex9 entry | |
| 13637 | this insert must be stable sorted by times. */ | |
| 13638 | ||
| 13639 | static void | |
| 13640 | nds32_elf_ex9_insert_entry (struct elf_nds32_insn_times_entry *ptr) | |
| 13641 | { | |
| 13642 | struct elf_nds32_insn_times_entry *temp; | |
| 13643 | struct elf_nds32_insn_times_entry *temp2; | |
| 13644 | ||
| 13645 | if (ex9_insn_head == NULL) | |
| 13646 | { | |
| 13647 | ex9_insn_head = ptr; | |
| 13648 | ptr->next = NULL; | |
| 13649 | } | |
| 13650 | else | |
| 13651 | { | |
| 13652 | temp = ex9_insn_head; | |
| 13653 | temp2 = ex9_insn_head; | |
| 13654 | while (temp->next && | |
| 13655 | (temp->next->times >= ptr->times | |
| 13656 | || temp->times == -1)) | |
| 13657 | { | |
| 13658 | if (temp->times == -1) | |
| 13659 | temp2 = temp; | |
| 13660 | temp = temp->next; | |
| 13661 | } | |
| 13662 | if (ptr->times > temp->times && temp->times != -1) | |
| 13663 | { | |
| 13664 | ptr->next = temp; | |
| 13665 | if (temp2->times == -1) | |
| 13666 | temp2->next = ptr; | |
| 13667 | else | |
| 13668 | ex9_insn_head = ptr; | |
| 13669 | } | |
| 13670 | else if (temp->next == NULL) | |
| 13671 | { | |
| 13672 | temp->next = ptr; | |
| 13673 | ptr->next = NULL; | |
| 13674 | } | |
| 13675 | else | |
| 13676 | { | |
| 13677 | ptr->next = temp->next; | |
| 13678 | temp->next = ptr; | |
| 13679 | } | |
| 13680 | } | |
| 13681 | } | |
| 13682 | ||
| 13683 | /* Examine each insn times in hash table. | |
| 13684 | Handle multi-link hash entry. | |
| 13685 | ||
| 13686 | TODO: This function doesn't assign so much info since it is fake. */ | |
| 13687 | ||
| 13688 | static int | |
| 13689 | nds32_elf_examine_insn_times (struct elf_nds32_code_hash_entry *h) | |
| 13690 | { | |
| 13691 | struct elf_nds32_insn_times_entry *ptr; | |
| 13692 | int times; | |
| 13693 | ||
| 13694 | if (h->m_list == NULL) | |
| 13695 | { | |
| 13696 | /* Local symbol insn or insn without relocation. */ | |
| 13697 | if (h->times < 3) | |
| 13698 | return TRUE; | |
| 13699 | ||
| 13700 | ptr = (struct elf_nds32_insn_times_entry *) | |
| 13701 | bfd_malloc (sizeof (struct elf_nds32_insn_times_entry)); | |
| 13702 | ptr->times = h->times; | |
| 13703 | ptr->string = h->root.string; | |
| 13704 | ptr->m_list = NULL; | |
| 13705 | ptr->sec = h->sec; | |
| 13706 | ptr->irel = h->irel; | |
| 13707 | ptr->rel_backup = h->rel_backup; | |
| 13708 | nds32_elf_ex9_insert_entry (ptr); | |
| 13709 | } | |
| 13710 | else | |
| 13711 | { | |
| 13712 | /* Global symbol insn. */ | |
| 13713 | /* Only sethi insn has multiple m_list. */ | |
| 13714 | struct elf_link_hash_entry_mul_list *m_list = h->m_list; | |
| 13715 | ||
| 13716 | times = 0; | |
| 13717 | while (m_list) | |
| 13718 | { | |
| 13719 | times += m_list->times; | |
| 13720 | m_list = m_list->next; | |
| 13721 | } | |
| 13722 | if (times >= 3) | |
| 13723 | { | |
| 13724 | m_list = h->m_list; | |
| 13725 | ptr = (struct elf_nds32_insn_times_entry *) | |
| 13726 | bfd_malloc (sizeof (struct elf_nds32_insn_times_entry)); | |
| 13727 | ptr->times = times; /* Use the total times. */ | |
| 13728 | ptr->string = h->root.string; | |
| 13729 | ptr->m_list = m_list; | |
| 13730 | ptr->sec = h->sec; | |
| 13731 | ptr->irel = m_list->irel; | |
| 13732 | ptr->rel_backup = m_list->rel_backup; | |
| 13733 | nds32_elf_ex9_insert_entry (ptr); | |
| 13734 | } | |
| 13735 | if (h->const_insn == 1) | |
| 13736 | { | |
| 13737 | /* sethi with constant value. */ | |
| 13738 | if (h->times < 3) | |
| 13739 | return TRUE; | |
| 13740 | ||
| 13741 | ptr = (struct elf_nds32_insn_times_entry *) | |
| 13742 | bfd_malloc (sizeof (struct elf_nds32_insn_times_entry)); | |
| 13743 | ptr->times = h->times; | |
| 13744 | ptr->string = h->root.string; | |
| 13745 | ptr->m_list = NULL; | |
| 13746 | ptr->sec = NULL; | |
| 13747 | ptr->irel = NULL; | |
| 13748 | ptr->rel_backup = h->rel_backup; | |
| 13749 | nds32_elf_ex9_insert_entry (ptr); | |
| 13750 | } | |
| 13751 | } | |
| 13752 | return TRUE; | |
| 13753 | } | |
| 13754 | ||
| 13755 | /* Count each insn times in hash table. | |
| 13756 | Handle multi-link hash entry. */ | |
| 13757 | ||
| 13758 | static int | |
| 13759 | nds32_elf_count_insn_times (struct elf_nds32_code_hash_entry *h) | |
| 13760 | { | |
| 13761 | int reservation, times; | |
| 13762 | unsigned long relocation, min_relocation; | |
| 13763 | struct elf_nds32_insn_times_entry *ptr; | |
| 13764 | ||
| 13765 | if (h->m_list == NULL) | |
| 13766 | { | |
| 13767 | /* Local symbol insn or insn without relocation. */ | |
| 13768 | if (h->times < 3) | |
| 13769 | return TRUE; | |
| 13770 | ptr = (struct elf_nds32_insn_times_entry *) | |
| 13771 | bfd_malloc (sizeof (struct elf_nds32_insn_times_entry)); | |
| 13772 | ptr->times = h->times; | |
| 13773 | ptr->string = h->root.string; | |
| 13774 | ptr->m_list = NULL; | |
| 13775 | ptr->sec = h->sec; | |
| 13776 | ptr->irel = h->irel; | |
| 13777 | ptr->rel_backup = h->rel_backup; | |
| 13778 | nds32_elf_ex9_insert_entry (ptr); | |
| 13779 | } | |
| 13780 | else | |
| 13781 | { | |
| 13782 | /* Global symbol insn. */ | |
| 13783 | /* Only sethi insn has multiple m_list. */ | |
| 13784 | struct elf_link_hash_entry_mul_list *m_list = h->m_list; | |
| 13785 | ||
| 13786 | if (ELF32_R_TYPE (m_list->rel_backup.r_info) == R_NDS32_HI20_RELA | |
| 13787 | && m_list->next != NULL) | |
| 13788 | { | |
| 13789 | /* Sethi insn has different symbol or addend but has same hi20. */ | |
| 13790 | times = 0; | |
| 13791 | reservation = 1; | |
| 13792 | relocation = 0; | |
| 13793 | min_relocation = 0xffffffff; | |
| 13794 | while (m_list) | |
| 13795 | { | |
| 13796 | /* Get the minimum sethi address | |
| 13797 | and calculate how many entry the sethi-list have to use. */ | |
| 13798 | if ((m_list->h_list->h->root.type == bfd_link_hash_defined | |
| 13799 | || m_list->h_list->h->root.type == bfd_link_hash_defweak) | |
| 13800 | && (m_list->h_list->h->root.u.def.section != NULL | |
| 13801 | && m_list->h_list->h->root.u.def.section->output_section != NULL)) | |
| 13802 | { | |
| 13803 | relocation = (m_list->h_list->h->root.u.def.value + | |
| 13804 | m_list->h_list->h->root.u.def.section->output_section->vma + | |
| 13805 | m_list->h_list->h->root.u.def.section->output_offset); | |
| 13806 | relocation += m_list->irel->r_addend; | |
| 13807 | } | |
| 13808 | else | |
| 13809 | relocation = 0; | |
| 13810 | if (relocation < min_relocation) | |
| 13811 | min_relocation = relocation; | |
| 13812 | times += m_list->times; | |
| 13813 | m_list = m_list->next; | |
| 13814 | } | |
| 13815 | if (min_relocation < ex9_relax_size) | |
| 13816 | reservation = (min_relocation >> 12) + 1; | |
| 13817 | else | |
| 13818 | reservation = (min_relocation >> 12) | |
| 13819 | - ((min_relocation - ex9_relax_size) >> 12) + 1; | |
| 13820 | if (reservation < (times / 3)) | |
| 13821 | { | |
| 13822 | /* Efficient enough to use ex9. */ | |
| 13823 | int i; | |
| 13824 | ||
| 13825 | for (i = reservation ; i > 0; i--) | |
| 13826 | { | |
| 13827 | /* Allocate number of reservation ex9 entry. */ | |
| 13828 | ptr = (struct elf_nds32_insn_times_entry *) | |
| 13829 | bfd_malloc (sizeof (struct elf_nds32_insn_times_entry)); | |
| 13830 | ptr->times = h->m_list->times / reservation; | |
| 13831 | ptr->string = h->root.string; | |
| 13832 | ptr->m_list = h->m_list; | |
| 13833 | ptr->sec = h->sec; | |
| 13834 | ptr->irel = h->m_list->irel; | |
| 13835 | ptr->rel_backup = h->m_list->rel_backup; | |
| 13836 | nds32_elf_ex9_insert_entry (ptr); | |
| 13837 | } | |
| 13838 | } | |
| 13839 | } | |
| 13840 | else | |
| 13841 | { | |
| 13842 | /* Normal global symbol that means no different address symbol | |
| 13843 | using same ex9 entry. */ | |
| 13844 | if (m_list->times >= 3) | |
| 13845 | { | |
| 13846 | ptr = (struct elf_nds32_insn_times_entry *) | |
| 13847 | bfd_malloc (sizeof (struct elf_nds32_insn_times_entry)); | |
| 13848 | ptr->times = m_list->times; | |
| 13849 | ptr->string = h->root.string; | |
| 13850 | ptr->m_list = h->m_list; | |
| 13851 | ptr->sec = h->sec; | |
| 13852 | ptr->irel = h->m_list->irel; | |
| 13853 | ptr->rel_backup = h->m_list->rel_backup; | |
| 13854 | nds32_elf_ex9_insert_entry (ptr); | |
| 13855 | } | |
| 13856 | } | |
| 13857 | ||
| 13858 | if (h->const_insn == 1) | |
| 13859 | { | |
| 13860 | /* sethi with constant value. */ | |
| 13861 | if (h->times < 3) | |
| 13862 | return TRUE; | |
| 13863 | ||
| 13864 | ptr = (struct elf_nds32_insn_times_entry *) | |
| 13865 | bfd_malloc (sizeof (struct elf_nds32_insn_times_entry)); | |
| 13866 | ptr->times = h->times; | |
| 13867 | ptr->string = h->root.string; | |
| 13868 | ptr->m_list = NULL; | |
| 13869 | ptr->sec = NULL; | |
| 13870 | ptr->irel = NULL; | |
| 13871 | ptr->rel_backup = h->rel_backup; | |
| 13872 | nds32_elf_ex9_insert_entry (ptr); | |
| 13873 | } | |
| 13874 | } | |
| 13875 | ||
| 13876 | return TRUE; | |
| 13877 | } | |
| 13878 | ||
| 13879 | /* Hash table traverse function. */ | |
| 13880 | ||
| 13881 | static void | |
| 13882 | nds32_elf_code_hash_traverse (int (*func) (struct elf_nds32_code_hash_entry*)) | |
| 13883 | { | |
| 13884 | unsigned int i; | |
| 13885 | ||
| 13886 | ex9_code_table.frozen = 1; | |
| 13887 | for (i = 0; i < ex9_code_table.size; i++) | |
| 13888 | { | |
| 13889 | struct bfd_hash_entry *p; | |
| 13890 | ||
| 13891 | for (p = ex9_code_table.table[i]; p != NULL; p = p->next) | |
| 13892 | if (!func ((struct elf_nds32_code_hash_entry *) p)) | |
| 13893 | goto out; | |
| 13894 | } | |
| 13895 | out: | |
| 13896 | ex9_code_table.frozen = 0; | |
| 13897 | } | |
| 13898 | ||
| 13899 | ||
| 13900 | /* Give order number to insn list. */ | |
| 13901 | ||
| 13902 | static void | |
| 13903 | nds32_elf_order_insn_times (struct bfd_link_info *info) | |
| 13904 | { | |
| 13905 | struct elf_nds32_insn_times_entry *ex9_insn; | |
| 1c8f6a4d | 13906 | struct elf_nds32_insn_times_entry *temp = NULL; |
| 35c08157 | 13907 | struct elf_nds32_link_hash_table *table; |
| 35c08157 | 13908 | int ex9_limit; |
| 1c8f6a4d KLC |
13909 | int number = 0; |
| 13910 | ||
| 13911 | if (ex9_insn_head == NULL) | |
| 13912 | return; | |
| 35c08157 KLC |
13913 | |
| 13914 | /* The max number of entries is 512. */ | |
| 13915 | ex9_insn = ex9_insn_head; | |
| 13916 | table = nds32_elf_hash_table (info); | |
| 13917 | ex9_limit = table->ex9_limit; | |
| 13918 | ||
| 35c08157 KLC |
13919 | ex9_insn = ex9_insn_head; |
| 13920 | ||
| 1c8f6a4d | 13921 | while (ex9_insn != NULL && number < ex9_limit) |
| 35c08157 | 13922 | { |
| 1c8f6a4d | 13923 | ex9_insn->order = number; |
| 35c08157 | 13924 | number++; |
| 1c8f6a4d | 13925 | temp = ex9_insn; |
| 35c08157 KLC |
13926 | ex9_insn = ex9_insn->next; |
| 13927 | } | |
| 13928 | ||
| 1c8f6a4d KLC |
13929 | if (ex9_insn && temp) |
| 13930 | temp->next = NULL; | |
| 35c08157 KLC |
13931 | |
| 13932 | while (ex9_insn != NULL) | |
| 13933 | { | |
| 13934 | /* Free useless entry. */ | |
| 13935 | temp = ex9_insn; | |
| 13936 | ex9_insn = ex9_insn->next; | |
| 13937 | free (temp); | |
| 13938 | } | |
| 13939 | } | |
| 13940 | ||
| 13941 | /* Build .ex9.itable section. */ | |
| 13942 | ||
| 13943 | static void | |
| 13944 | nds32_elf_ex9_build_itable (struct bfd_link_info *link_info) | |
| 13945 | { | |
| 13946 | asection *table_sec; | |
| 13947 | struct elf_nds32_insn_times_entry *ptr; | |
| 13948 | bfd *it_abfd; | |
| 13949 | int number = 0; | |
| 13950 | bfd_byte *contents = NULL; | |
| 13951 | ||
| 13952 | for (it_abfd = link_info->input_bfds; it_abfd != NULL; | |
| c72f2fb2 | 13953 | it_abfd = it_abfd->link.next) |
| 35c08157 KLC |
13954 | { |
| 13955 | /* Find the section .ex9.itable, and put all entries into it. */ | |
| 13956 | table_sec = bfd_get_section_by_name (it_abfd, ".ex9.itable"); | |
| 13957 | if (table_sec != NULL) | |
| 13958 | { | |
| 0c4bd9d9 | 13959 | if (!nds32_get_section_contents (it_abfd, table_sec, &contents, TRUE)) |
| 35c08157 KLC |
13960 | return; |
| 13961 | ||
| 13962 | for (ptr = ex9_insn_head; ptr !=NULL ; ptr = ptr->next) | |
| 13963 | number++; | |
| 13964 | ||
| 13965 | table_sec->size = number * 4; | |
| 13966 | ||
| 13967 | if (number == 0) | |
| 1c8f6a4d | 13968 | return; |
| 35c08157 KLC |
13969 | |
| 13970 | elf_elfheader (link_info->output_bfd)->e_flags |= E_NDS32_HAS_EX9_INST; | |
| 13971 | number = 0; | |
| 13972 | for (ptr = ex9_insn_head; ptr !=NULL ; ptr = ptr->next) | |
| 13973 | { | |
| 13974 | long val; | |
| 13975 | ||
| 13976 | val = strtol (ptr->string, NULL, 16); | |
| 13977 | bfd_putb32 ((bfd_vma) val, (char *) contents + (number * 4)); | |
| 13978 | number++; | |
| 13979 | } | |
| 13980 | break; | |
| 13981 | } | |
| 13982 | } | |
| 13983 | } | |
| 13984 | ||
| 13985 | /* Get insn with regs according to relocation type. */ | |
| 13986 | ||
| 13987 | static void | |
| 13988 | nds32_elf_get_insn_with_reg (Elf_Internal_Rela *irel, | |
| 1c8f6a4d | 13989 | uint32_t insn, uint32_t *insn_with_reg) |
| 35c08157 KLC |
13990 | { |
| 13991 | reloc_howto_type *howto = NULL; | |
| 13992 | ||
| 13993 | if (irel == NULL | |
| 13994 | || (ELF32_R_TYPE (irel->r_info) >= (int) ARRAY_SIZE (nds32_elf_howto_table) | |
| 13995 | && (ELF32_R_TYPE (irel->r_info) - R_NDS32_RELAX_ENTRY) | |
| 13996 | >= (int) ARRAY_SIZE (nds32_elf_relax_howto_table))) | |
| 13997 | { | |
| 13998 | *insn_with_reg = insn; | |
| 13999 | return; | |
| 14000 | } | |
| 14001 | ||
| 14002 | howto = bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel->r_info)); | |
| 14003 | *insn_with_reg = insn & (0xffffffff ^ howto->dst_mask); | |
| 14004 | } | |
| 14005 | ||
| 14006 | /* Mask number of address bits according to relocation. */ | |
| 14007 | ||
| 14008 | static unsigned long | |
| 14009 | nds32_elf_irel_mask (Elf_Internal_Rela *irel) | |
| 14010 | { | |
| 14011 | reloc_howto_type *howto = NULL; | |
| 14012 | ||
| 14013 | if (irel == NULL | |
| 14014 | || (ELF32_R_TYPE (irel->r_info) >= (int) ARRAY_SIZE (nds32_elf_howto_table) | |
| 14015 | && (ELF32_R_TYPE (irel->r_info) - R_NDS32_RELAX_ENTRY) | |
| 14016 | >= (int) ARRAY_SIZE (nds32_elf_relax_howto_table))) | |
| 14017 | return 0; | |
| 14018 | ||
| 14019 | howto = bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel->r_info)); | |
| 14020 | return howto->dst_mask; | |
| 14021 | } | |
| 14022 | ||
| 14023 | static void | |
| 14024 | nds32_elf_insert_irel_entry (struct elf_nds32_irel_entry **irel_list, | |
| 14025 | struct elf_nds32_irel_entry *irel_ptr) | |
| 14026 | { | |
| 14027 | if (*irel_list == NULL) | |
| 14028 | { | |
| 14029 | *irel_list = irel_ptr; | |
| 14030 | irel_ptr->next = NULL; | |
| 14031 | } | |
| 14032 | else | |
| 14033 | { | |
| 14034 | irel_ptr->next = *irel_list; | |
| 14035 | *irel_list = irel_ptr; | |
| 14036 | } | |
| 14037 | } | |
| 14038 | ||
| 14039 | static void | |
| 14040 | nds32_elf_ex9_insert_fix (asection * sec, Elf_Internal_Rela * irel, | |
| 14041 | struct elf_link_hash_entry *h, int order) | |
| 14042 | { | |
| 14043 | struct elf_nds32_ex9_refix *ptr; | |
| 14044 | ||
| 14045 | ptr = bfd_malloc (sizeof (struct elf_nds32_ex9_refix)); | |
| 14046 | ptr->sec = sec; | |
| 14047 | ptr->irel = irel; | |
| 14048 | ptr->h = h; | |
| 14049 | ptr->order = order; | |
| 14050 | ptr->next = NULL; | |
| 14051 | ||
| 14052 | if (ex9_refix_head == NULL) | |
| 14053 | ex9_refix_head = ptr; | |
| 14054 | else | |
| 14055 | { | |
| 14056 | struct elf_nds32_ex9_refix *temp = ex9_refix_head; | |
| 14057 | ||
| 14058 | while (temp->next != NULL) | |
| 14059 | temp = temp->next; | |
| 14060 | temp->next = ptr; | |
| 14061 | } | |
| 14062 | } | |
| 14063 | ||
| 14064 | enum | |
| 14065 | { | |
| 14066 | DATA_EXIST = 1, | |
| 14067 | CLEAN_PRE = 1 << 1, | |
| 14068 | PUSH_PRE = 1 << 2 | |
| 14069 | }; | |
| 14070 | ||
| 14071 | /* Check relocation type if supporting for ex9. */ | |
| 14072 | ||
| 14073 | static int | |
| 14074 | nds32_elf_ex9_relocation_check (struct bfd_link_info *info, | |
| 14075 | Elf_Internal_Rela **irel, | |
| 14076 | Elf_Internal_Rela *irelend, | |
| 14077 | nds32_elf_blank_t *relax_blank_list, | |
| f4cb41f4 | 14078 | asection *sec,bfd_vma *off, |
| 35c08157 KLC |
14079 | bfd_byte *contents) |
| 14080 | { | |
| 14081 | /* Suppress ex9 if `.no_relax ex9' or inner loop. */ | |
| 14082 | bfd_boolean nested_ex9, nested_loop; | |
| 14083 | bfd_boolean ex9_loop_aware; | |
| 14084 | /* We use the highest 1 byte of result to record | |
| 14085 | how many bytes location counter has to move. */ | |
| 14086 | int result = 0; | |
| 14087 | Elf_Internal_Rela *irel_save = NULL; | |
| 14088 | struct elf_nds32_link_hash_table *table; | |
| 14089 | ||
| 14090 | table = nds32_elf_hash_table (info); | |
| 14091 | ex9_loop_aware = table->ex9_loop_aware; | |
| 14092 | ||
| 14093 | while ((*irel) != NULL && (*irel) < irelend && *off == (*irel)->r_offset) | |
| 14094 | { | |
| 14095 | switch (ELF32_R_TYPE ((*irel)->r_info)) | |
| 14096 | { | |
| 14097 | case R_NDS32_RELAX_REGION_BEGIN: | |
| 14098 | /* Ignore code block. */ | |
| 14099 | nested_ex9 = FALSE; | |
| 14100 | nested_loop = FALSE; | |
| 14101 | if (((*irel)->r_addend & R_NDS32_RELAX_REGION_NO_EX9_FLAG) | |
| 14102 | || (ex9_loop_aware | |
| 14103 | && ((*irel)->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG))) | |
| 14104 | { | |
| 14105 | /* Check the region if loop or not. If it is true and | |
| 14106 | ex9-loop-aware is true, ignore the region till region end. */ | |
| 14107 | /* To save the status for in .no_relax ex9 region and | |
| 14108 | loop region to conform the block can do ex9 relaxation. */ | |
| 14109 | nested_ex9 = ((*irel)->r_addend & R_NDS32_RELAX_REGION_NO_EX9_FLAG); | |
| 14110 | nested_loop = (ex9_loop_aware | |
| 14111 | && ((*irel)->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG)); | |
| 14112 | while ((*irel) && (*irel) < irelend && (nested_ex9 || nested_loop)) | |
| 14113 | { | |
| 14114 | (*irel)++; | |
| 14115 | if (ELF32_R_TYPE ((*irel)->r_info) == R_NDS32_RELAX_REGION_BEGIN) | |
| 14116 | { | |
| 14117 | /* There may be nested region. */ | |
| 14118 | if (((*irel)->r_addend & R_NDS32_RELAX_REGION_NO_EX9_FLAG) != 0) | |
| 14119 | nested_ex9 = TRUE; | |
| 14120 | else if (ex9_loop_aware | |
| 14121 | && ((*irel)->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG)) | |
| 14122 | nested_loop = TRUE; | |
| 14123 | } | |
| 14124 | else if (ELF32_R_TYPE ((*irel)->r_info) == R_NDS32_RELAX_REGION_END) | |
| 14125 | { | |
| 14126 | /* The end of region. */ | |
| 14127 | if (((*irel)->r_addend & R_NDS32_RELAX_REGION_NO_EX9_FLAG) != 0) | |
| 14128 | nested_ex9 = FALSE; | |
| 14129 | else if (ex9_loop_aware | |
| 14130 | && ((*irel)->r_addend & R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG)) | |
| 14131 | nested_loop = FALSE; | |
| 14132 | } | |
| 1c8f6a4d | 14133 | else if (ELF32_R_TYPE ((*irel)->r_info) == R_NDS32_LABEL |
| 35c08157 KLC |
14134 | && ((*irel)->r_addend & 0x1f) == 2) |
| 14135 | { | |
| 14136 | /* Alignment exist in the region. */ | |
| 14137 | result |= CLEAN_PRE; | |
| 14138 | if (((*irel)->r_offset - | |
| 14139 | get_nds32_elf_blank_total (&relax_blank_list, | |
| 14140 | (*irel)->r_offset, 0)) & 0x02) | |
| 14141 | result |= PUSH_PRE; | |
| 14142 | } | |
| 14143 | } | |
| 14144 | if ((*irel) >= irelend) | |
| 14145 | *off = sec->size; | |
| 14146 | else | |
| 14147 | *off = (*irel)->r_offset; | |
| 14148 | ||
| 14149 | /* The final instruction in the region, regard this one as data to ignore it. */ | |
| 14150 | result |= DATA_EXIST; | |
| 14151 | return result; | |
| 14152 | } | |
| 14153 | break; | |
| 14154 | ||
| 14155 | case R_NDS32_LABEL: | |
| 1c8f6a4d | 14156 | if (((*irel)->r_addend & 0x1f) == 2) |
| 35c08157 KLC |
14157 | { |
| 14158 | /* Check this point is align and decide to do ex9 or not. */ | |
| 14159 | result |= CLEAN_PRE; | |
| 14160 | if (((*irel)->r_offset - | |
| 14161 | get_nds32_elf_blank_total (&relax_blank_list, | |
| 14162 | (*irel)->r_offset, 0)) & 0x02) | |
| 14163 | result |= PUSH_PRE; | |
| 14164 | } | |
| 14165 | break; | |
| 14166 | case R_NDS32_32_RELA: | |
| 14167 | /* Data. */ | |
| 14168 | result |= (4 << 24); | |
| 14169 | result |= DATA_EXIST; | |
| 14170 | break; | |
| 14171 | case R_NDS32_16_RELA: | |
| 14172 | /* Data. */ | |
| 14173 | result |= (2 << 24); | |
| 14174 | result |= DATA_EXIST; | |
| 14175 | break; | |
| 14176 | case R_NDS32_DATA: | |
| 14177 | /* Data. */ | |
| 14178 | /* The least code alignment is 2. If the data is only one byte, | |
| 14179 | we have to shift one more byte. */ | |
| 14180 | if ((*irel)->r_addend == 1) | |
| 14181 | result |= ((*irel)->r_addend << 25) ; | |
| 14182 | else | |
| 14183 | result |= ((*irel)->r_addend << 24) ; | |
| 14184 | ||
| 14185 | result |= DATA_EXIST; | |
| 14186 | break; | |
| 14187 | ||
| 14188 | case R_NDS32_25_PCREL_RELA: | |
| 14189 | case R_NDS32_SDA16S3_RELA: | |
| 14190 | case R_NDS32_SDA15S3_RELA: | |
| 14191 | case R_NDS32_SDA15S3: | |
| 14192 | case R_NDS32_SDA17S2_RELA: | |
| 14193 | case R_NDS32_SDA15S2_RELA: | |
| 14194 | case R_NDS32_SDA12S2_SP_RELA: | |
| 14195 | case R_NDS32_SDA12S2_DP_RELA: | |
| 14196 | case R_NDS32_SDA15S2: | |
| 14197 | case R_NDS32_SDA18S1_RELA: | |
| 14198 | case R_NDS32_SDA15S1_RELA: | |
| 14199 | case R_NDS32_SDA15S1: | |
| 14200 | case R_NDS32_SDA19S0_RELA: | |
| 14201 | case R_NDS32_SDA15S0_RELA: | |
| 14202 | case R_NDS32_SDA15S0: | |
| 14203 | case R_NDS32_HI20_RELA: | |
| 14204 | case R_NDS32_LO12S0_ORI_RELA: | |
| 14205 | case R_NDS32_LO12S0_RELA: | |
| 14206 | case R_NDS32_LO12S1_RELA: | |
| 14207 | case R_NDS32_LO12S2_RELA: | |
| 14208 | /* These relocation is supported ex9 relaxation currently. */ | |
| 14209 | /* We have to save the relocation for using later, since we have | |
| 14210 | to check there is any alignment in the same address. */ | |
| 14211 | irel_save = *irel; | |
| 14212 | break; | |
| 14213 | default: | |
| 14214 | /* Not support relocations. */ | |
| 14215 | if (ELF32_R_TYPE ((*irel)->r_info) < ARRAY_SIZE (nds32_elf_howto_table) | |
| 1c8f6a4d KLC |
14216 | && ELF32_R_TYPE ((*irel)->r_info) != R_NDS32_NONE |
| 14217 | && ELF32_R_TYPE ((*irel)->r_info) != R_NDS32_INSN16) | |
| 35c08157 KLC |
14218 | { |
| 14219 | /* Note: To optimize aggressively, it maybe can ignore R_NDS32_INSN16 here. | |
| 14220 | But we have to consider if there is any side-effect. */ | |
| 14221 | if (!(result & DATA_EXIST)) | |
| 14222 | { | |
| 14223 | /* We have to confirm there is no data relocation in the | |
| 14224 | same address. In general case, this won't happen. */ | |
| 14225 | /* We have to do ex9 conservative, for those relocation not | |
| 14226 | considerd we ignore instruction. */ | |
| 14227 | result |= DATA_EXIST; | |
| 14228 | if (*(contents + *off) & 0x80) | |
| 14229 | result |= (2 << 24); | |
| 14230 | else | |
| 14231 | result |= (4 << 24); | |
| 14232 | break; | |
| 14233 | } | |
| 14234 | } | |
| 14235 | } | |
| 14236 | if ((*irel) < irelend | |
| 14237 | && ((*irel) + 1) < irelend | |
| 14238 | && (*irel)->r_offset == ((*irel) + 1)->r_offset) | |
| 14239 | /* There are relocations pointing to the same address, we have to | |
| 14240 | check all of them. */ | |
| 14241 | (*irel)++; | |
| 14242 | else | |
| 14243 | { | |
| 14244 | if (irel_save) | |
| 14245 | *irel = irel_save; | |
| 14246 | return result; | |
| 14247 | } | |
| 14248 | } | |
| 14249 | return result; | |
| 14250 | } | |
| 14251 | ||
| 1c8f6a4d KLC |
14252 | /* Replace with ex9 instruction. */ |
| 14253 | ||
| 14254 | static bfd_boolean | |
| 14255 | nds32_elf_ex9_push_insn (uint16_t insn16, bfd_byte *contents, bfd_vma pre_off, | |
| 14256 | nds32_elf_blank_t **relax_blank_list, | |
| 14257 | struct elf_nds32_irel_entry *pre_irel_ptr, | |
| 14258 | struct elf_nds32_irel_entry **irel_list) | |
| 14259 | { | |
| 14260 | if (insn16 != 0) | |
| 14261 | { | |
| 14262 | /* Implement the ex9 relaxation. */ | |
| 14263 | bfd_putb16 (insn16, contents + pre_off); | |
| 14264 | if (!insert_nds32_elf_blank_recalc_total (relax_blank_list, | |
| 14265 | pre_off + 2, 2)) | |
| 14266 | return FALSE; | |
| 14267 | if (pre_irel_ptr != NULL) | |
| 14268 | nds32_elf_insert_irel_entry (irel_list, pre_irel_ptr); | |
| 14269 | } | |
| 14270 | return TRUE; | |
| 14271 | } | |
| 14272 | ||
| 35c08157 KLC |
14273 | /* Replace input file instruction which is in ex9 itable. */ |
| 14274 | ||
| 14275 | static bfd_boolean | |
| 14276 | nds32_elf_ex9_replace_instruction (struct bfd_link_info *info, bfd *abfd, asection *sec) | |
| 14277 | { | |
| 14278 | struct elf_nds32_insn_times_entry *ex9_insn = ex9_insn_head; | |
| 14279 | bfd_byte *contents = NULL; | |
| 1c8f6a4d KLC |
14280 | bfd_vma off; |
| 14281 | uint16_t insn16, insn_ex9; | |
| 35c08157 | 14282 | /* `pre_*' are used to track previous instruction that can use ex9.it. */ |
| 1c8f6a4d KLC |
14283 | bfd_vma pre_off = -1; |
| 14284 | uint16_t pre_insn16 = 0; | |
| 35c08157 KLC |
14285 | struct elf_nds32_irel_entry *pre_irel_ptr = NULL; |
| 14286 | Elf_Internal_Rela *internal_relocs; | |
| 14287 | Elf_Internal_Rela *irel; | |
| 14288 | Elf_Internal_Rela *irelend; | |
| 14289 | Elf_Internal_Shdr *symtab_hdr; | |
| 14290 | Elf_Internal_Sym *isym = NULL; | |
| 14291 | nds32_elf_blank_t *relax_blank_list = NULL; | |
| 1c8f6a4d KLC |
14292 | uint32_t insn = 0; |
| 14293 | uint32_t insn_with_reg = 0; | |
| 14294 | uint32_t it_insn; | |
| 14295 | uint32_t it_insn_with_reg; | |
| 35c08157 KLC |
14296 | unsigned long r_symndx; |
| 14297 | asection *isec; | |
| 14298 | struct elf_nds32_irel_entry *irel_list = NULL; | |
| 14299 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (abfd); | |
| 14300 | int data_flag, do_replace, save_irel; | |
| 1c8f6a4d KLC |
14301 | struct elf_link_hash_entry_list *h_list; |
| 14302 | ||
| 35c08157 KLC |
14303 | |
| 14304 | /* Load section instructions, relocations, and symbol table. */ | |
| 0c4bd9d9 | 14305 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE) |
| 35c08157 KLC |
14306 | || !nds32_get_local_syms (abfd, sec, &isym)) |
| 14307 | return FALSE; | |
| 1c8f6a4d KLC |
14308 | internal_relocs = |
| 14309 | _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, TRUE /* keep_memory */); | |
| 35c08157 KLC |
14310 | irelend = internal_relocs + sec->reloc_count; |
| 14311 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
| 14312 | ||
| 14313 | off = 0; | |
| 14314 | ||
| 14315 | /* Check if the object enable ex9. */ | |
| 1c8f6a4d KLC |
14316 | irel = find_relocs_at_address (internal_relocs, internal_relocs, |
| 14317 | irelend, R_NDS32_RELAX_ENTRY); | |
| 35c08157 KLC |
14318 | |
| 14319 | /* Check this section trigger ex9 relaxation. */ | |
| 14320 | if (irel == NULL | |
| 14321 | || irel >= irelend | |
| 14322 | || ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_ENTRY | |
| 14323 | || (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY | |
| 14324 | && !(irel->r_addend & R_NDS32_RELAX_ENTRY_EX9_FLAG))) | |
| 14325 | return TRUE; | |
| 14326 | ||
| 14327 | irel = internal_relocs; | |
| 14328 | ||
| 14329 | /* Check alignment and fetch proper relocation. */ | |
| 14330 | while (off < sec->size) | |
| 14331 | { | |
| 14332 | struct elf_link_hash_entry *h = NULL; | |
| 14333 | struct elf_nds32_irel_entry *irel_ptr = NULL; | |
| 14334 | ||
| 14335 | /* Syn the instruction and the relocation. */ | |
| 14336 | while (irel != NULL && irel < irelend && irel->r_offset < off) | |
| 14337 | irel++; | |
| 14338 | ||
| 14339 | data_flag = nds32_elf_ex9_relocation_check (info, &irel, irelend, | |
| 14340 | relax_blank_list, sec, | |
| 14341 | &off, contents); | |
| 14342 | if (data_flag & PUSH_PRE) | |
| 1c8f6a4d KLC |
14343 | if (!nds32_elf_ex9_push_insn (pre_insn16, contents, pre_off, |
| 14344 | &relax_blank_list, pre_irel_ptr, | |
| 14345 | &irel_list)) | |
| 14346 | return FALSE; | |
| 35c08157 KLC |
14347 | |
| 14348 | if (data_flag & CLEAN_PRE) | |
| 14349 | { | |
| 14350 | pre_off = 0; | |
| 14351 | pre_insn16 = 0; | |
| 14352 | pre_irel_ptr = NULL; | |
| 14353 | } | |
| 14354 | if (data_flag & DATA_EXIST) | |
| 14355 | { | |
| 14356 | /* We save the move offset in the highest byte. */ | |
| 14357 | off += (data_flag >> 24); | |
| 14358 | continue; | |
| 14359 | } | |
| 14360 | ||
| 14361 | if (*(contents + off) & 0x80) | |
| 14362 | { | |
| 14363 | /* 2-byte instruction. */ | |
| 14364 | off += 2; | |
| 14365 | continue; | |
| 14366 | } | |
| 14367 | ||
| 14368 | /* Load the instruction and its opcode with register for comparing. */ | |
| 14369 | ex9_insn = ex9_insn_head; | |
| 14370 | insn = bfd_getb32 (contents + off); | |
| 14371 | insn_with_reg = 0; | |
| 14372 | while (ex9_insn) | |
| 14373 | { | |
| 14374 | it_insn = strtol (ex9_insn->string, NULL, 16); | |
| 14375 | it_insn_with_reg = 0; | |
| 14376 | do_replace = 0; | |
| 14377 | save_irel = 0; | |
| 14378 | ||
| 14379 | if (irel != NULL && irel < irelend && irel->r_offset == off) | |
| 14380 | { | |
| 14381 | /* Insn with relocation. */ | |
| 14382 | nds32_elf_get_insn_with_reg (irel, insn, &insn_with_reg); | |
| 14383 | ||
| 14384 | if (ex9_insn->irel != NULL) | |
| 1c8f6a4d KLC |
14385 | nds32_elf_get_insn_with_reg (ex9_insn->irel, it_insn, |
| 14386 | &it_insn_with_reg); | |
| 35c08157 KLC |
14387 | |
| 14388 | if (ex9_insn->irel != NULL | |
| 1c8f6a4d KLC |
14389 | && (ELF32_R_TYPE (irel->r_info) == |
| 14390 | ELF32_R_TYPE (ex9_insn->irel->r_info)) | |
| 35c08157 KLC |
14391 | && (insn_with_reg == it_insn_with_reg)) |
| 14392 | { | |
| 14393 | /* Insn relocation and format is the same as table entry. */ | |
| 14394 | ||
| 14395 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_25_PCREL_RELA | |
| 14396 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S0_ORI_RELA | |
| 14397 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S0_RELA | |
| 14398 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S1_RELA | |
| 14399 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_RELA | |
| 14400 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3 | |
| 14401 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0) | |
| 14402 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3_RELA | |
| 14403 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0_RELA) | |
| 14404 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA12S2_DP_RELA | |
| 14405 | && ELF32_R_TYPE (irel->r_info) <= | |
| 14406 | R_NDS32_SDA12S2_SP_RELA) | |
| 14407 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA16S3_RELA | |
| 14408 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA19S0_RELA)) | |
| 14409 | { | |
| 14410 | r_symndx = ELF32_R_SYM (irel->r_info); | |
| 14411 | if (r_symndx < symtab_hdr->sh_info) | |
| 14412 | { | |
| 14413 | /* Local symbol. */ | |
| 14414 | int shndx = isym[r_symndx].st_shndx; | |
| 14415 | ||
| 14416 | isec = elf_elfsections (abfd)[shndx]->bfd_section; | |
| 14417 | if (ex9_insn->sec == isec | |
| 14418 | && ex9_insn->irel->r_addend == irel->r_addend | |
| 14419 | && ex9_insn->irel->r_info == irel->r_info) | |
| 14420 | { | |
| 14421 | do_replace = 1; | |
| 14422 | save_irel = 1; | |
| 14423 | } | |
| 14424 | } | |
| 14425 | else | |
| 14426 | { | |
| 14427 | /* External symbol. */ | |
| 14428 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| 14429 | if (ex9_insn->m_list) | |
| 14430 | { | |
| 35c08157 KLC |
14431 | h_list = ex9_insn->m_list->h_list; |
| 14432 | while (h_list) | |
| 14433 | { | |
| 14434 | if (h == h_list->h | |
| 1c8f6a4d KLC |
14435 | && (ex9_insn->m_list->irel->r_addend == |
| 14436 | irel->r_addend)) | |
| 35c08157 KLC |
14437 | { |
| 14438 | do_replace = 1; | |
| 14439 | save_irel = 1; | |
| 14440 | break; | |
| 14441 | } | |
| 14442 | h_list = h_list->next; | |
| 14443 | } | |
| 14444 | } | |
| 14445 | } | |
| 14446 | } | |
| 14447 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_HI20_RELA) | |
| 14448 | { | |
| 14449 | r_symndx = ELF32_R_SYM (irel->r_info); | |
| 14450 | if (r_symndx < symtab_hdr->sh_info) | |
| 14451 | { | |
| 14452 | /* Local symbols. Compare its base symbol and offset. */ | |
| 14453 | int shndx = isym[r_symndx].st_shndx; | |
| 14454 | ||
| 14455 | isec = elf_elfsections (abfd)[shndx]->bfd_section; | |
| 14456 | if (ex9_insn->sec == isec | |
| 14457 | && ex9_insn->irel->r_addend == irel->r_addend | |
| 14458 | && ex9_insn->irel->r_info == irel->r_info) | |
| 14459 | { | |
| 14460 | do_replace = 1; | |
| 14461 | save_irel = 1; | |
| 14462 | } | |
| 14463 | } | |
| 14464 | else | |
| 14465 | { | |
| 14466 | /* External symbol. */ | |
| 14467 | struct elf_link_hash_entry_mul_list *m_list; | |
| 14468 | ||
| 14469 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| 14470 | m_list = ex9_insn->m_list; | |
| 14471 | ||
| 14472 | while (m_list) | |
| 14473 | { | |
| 1c8f6a4d | 14474 | h_list = m_list->h_list; |
| 35c08157 KLC |
14475 | |
| 14476 | while (h_list) | |
| 14477 | { | |
| 14478 | if (h == h_list->h | |
| 1c8f6a4d KLC |
14479 | && (m_list->irel->r_addend |
| 14480 | == irel->r_addend)) | |
| 35c08157 KLC |
14481 | { |
| 14482 | do_replace = 1; | |
| 14483 | save_irel = 1; | |
| 14484 | if (ex9_insn->next | |
| 14485 | && ex9_insn->m_list | |
| 14486 | && ex9_insn->m_list == ex9_insn->next->m_list) | |
| 14487 | { | |
| 14488 | /* sethi multiple entry must be fixed */ | |
| 14489 | nds32_elf_ex9_insert_fix (sec, irel, | |
| 14490 | h, ex9_insn->order); | |
| 14491 | } | |
| 14492 | break; | |
| 14493 | } | |
| 14494 | h_list = h_list->next; | |
| 14495 | } | |
| 14496 | m_list = m_list->next; | |
| 14497 | } | |
| 14498 | } | |
| 14499 | } | |
| 14500 | } | |
| 14501 | ||
| 14502 | /* Import table: Check the symbol hash table and the | |
| 14503 | jump target. Only R_NDS32_25_PCREL_RELA now. */ | |
| 14504 | else if (ex9_insn->times == -1 | |
| 14505 | && ELF32_R_TYPE (irel->r_info) == R_NDS32_25_PCREL_RELA) | |
| 14506 | { | |
| 14507 | nds32_elf_get_insn_with_reg (irel, it_insn, &it_insn_with_reg); | |
| 14508 | if (insn_with_reg == it_insn_with_reg) | |
| 14509 | { | |
| 14510 | char code[10]; | |
| 14511 | bfd_vma relocation; | |
| 14512 | ||
| 14513 | r_symndx = ELF32_R_SYM (irel->r_info); | |
| 14514 | if (r_symndx >= symtab_hdr->sh_info) | |
| 14515 | { | |
| 14516 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| 14517 | if ((h->root.type == bfd_link_hash_defined | |
| 14518 | || h->root.type == bfd_link_hash_defweak) | |
| 1c8f6a4d KLC |
14519 | && h->root.u.def.section != NULL |
| 14520 | && h->root.u.def.section->output_section != NULL | |
| 35c08157 | 14521 | && h->root.u.def.section->gc_mark == 1 |
| 1c8f6a4d | 14522 | && bfd_is_abs_section (h->root.u.def.section) |
| 35c08157 KLC |
14523 | && h->root.u.def.value > sec->size) |
| 14524 | { | |
| 1c8f6a4d KLC |
14525 | relocation = h->root.u.def.value + |
| 14526 | h->root.u.def.section->output_section->vma + | |
| 14527 | h->root.u.def.section->output_offset; | |
| 35c08157 | 14528 | relocation += irel->r_addend; |
| 1c8f6a4d KLC |
14529 | insn = insn_with_reg |
| 14530 | | ((relocation >> 1) & 0xffffff); | |
| 14531 | snprintf (code, sizeof (code), "%08x", insn); | |
| 35c08157 KLC |
14532 | if (strcmp (code, ex9_insn->string) == 0) |
| 14533 | { | |
| 14534 | do_replace = 1; | |
| 14535 | save_irel = 1; | |
| 14536 | } | |
| 14537 | } | |
| 14538 | } | |
| 14539 | } | |
| 14540 | } | |
| 14541 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN | |
| 1c8f6a4d KLC |
14542 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END |
| 14543 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE) | |
| 35c08157 KLC |
14544 | { |
| 14545 | /* These relocations do not have to relocate contens, so it can | |
| 14546 | be regard as instruction without relocation. */ | |
| 14547 | if (insn == it_insn && ex9_insn->irel == NULL) | |
| 14548 | do_replace = 1; | |
| 14549 | } | |
| 14550 | } | |
| 14551 | else | |
| 14552 | { | |
| 14553 | /* Instruction without relocation, we only | |
| 14554 | have to compare their byte code. */ | |
| 14555 | if (insn == it_insn && ex9_insn->irel == NULL) | |
| 14556 | do_replace = 1; | |
| 14557 | } | |
| 14558 | ||
| 14559 | /* Insntruction match so replacing the code here. */ | |
| 14560 | if (do_replace == 1) | |
| 14561 | { | |
| 14562 | /* There are two formats of ex9 instruction. */ | |
| 14563 | if (ex9_insn->order < 32) | |
| 14564 | insn_ex9 = INSN_EX9_IT_2; | |
| 14565 | else | |
| 14566 | insn_ex9 = INSN_EX9_IT_1; | |
| 14567 | insn16 = insn_ex9 | ex9_insn->order; | |
| 14568 | ||
| 1c8f6a4d KLC |
14569 | /* Insert ex9 instruction. */ |
| 14570 | nds32_elf_ex9_push_insn (pre_insn16, contents, pre_off, | |
| 14571 | &relax_blank_list, pre_irel_ptr, | |
| 14572 | &irel_list); | |
| 35c08157 KLC |
14573 | pre_off = off; |
| 14574 | pre_insn16 = insn16; | |
| 14575 | ||
| 14576 | if (save_irel) | |
| 14577 | { | |
| 14578 | /* For instuction with relocation do relax. */ | |
| 14579 | irel_ptr = (struct elf_nds32_irel_entry *) | |
| 14580 | bfd_malloc (sizeof (struct elf_nds32_irel_entry)); | |
| 14581 | irel_ptr->irel = irel; | |
| 14582 | irel_ptr->next = NULL; | |
| 14583 | pre_irel_ptr = irel_ptr; | |
| 14584 | } | |
| 14585 | else | |
| 14586 | pre_irel_ptr = NULL; | |
| 14587 | break; | |
| 14588 | } | |
| 14589 | ex9_insn = ex9_insn->next; | |
| 14590 | } | |
| 14591 | off += 4; | |
| 14592 | } | |
| 14593 | ||
| 1c8f6a4d KLC |
14594 | /* Insert ex9 instruction. */ |
| 14595 | nds32_elf_ex9_push_insn (pre_insn16, contents, pre_off, | |
| 14596 | &relax_blank_list, pre_irel_ptr, | |
| 14597 | &irel_list); | |
| 35c08157 KLC |
14598 | |
| 14599 | /* Delete the redundant code. */ | |
| 14600 | if (relax_blank_list) | |
| 14601 | { | |
| 14602 | nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list); | |
| 14603 | relax_blank_list = NULL; | |
| 14604 | } | |
| 14605 | ||
| 14606 | /* Clear the relocation that is replaced by ex9. */ | |
| 14607 | while (irel_list) | |
| 14608 | { | |
| 14609 | struct elf_nds32_irel_entry *irel_ptr; | |
| 14610 | ||
| 14611 | irel_ptr = irel_list; | |
| 14612 | irel_list = irel_ptr->next; | |
| 14613 | irel_ptr->irel->r_info = | |
| 14614 | ELF32_R_INFO (ELF32_R_SYM (irel_ptr->irel->r_info), R_NDS32_TRAN); | |
| 14615 | free (irel_ptr); | |
| 14616 | } | |
| 14617 | return TRUE; | |
| 14618 | } | |
| 14619 | ||
| 14620 | /* Initialize ex9 hash table. */ | |
| 14621 | ||
| 14622 | int | |
| 14623 | nds32_elf_ex9_init (void) | |
| 14624 | { | |
| 14625 | if (!bfd_hash_table_init_n (&ex9_code_table, nds32_elf_code_hash_newfunc, | |
| 14626 | sizeof (struct elf_nds32_code_hash_entry), | |
| 14627 | 1023)) | |
| 14628 | { | |
| 4eca0228 | 14629 | _bfd_error_handler (_("Linker: cannot init ex9 hash table error \n")); |
| 35c08157 KLC |
14630 | return FALSE; |
| 14631 | } | |
| 14632 | return TRUE; | |
| 14633 | } | |
| 14634 | ||
| 14635 | /* Predict how many bytes will be relaxed with ex9 and ifc. */ | |
| 14636 | ||
| 14637 | static void | |
| 14638 | nds32_elf_ex9_total_relax (struct bfd_link_info *info) | |
| 14639 | { | |
| 14640 | struct elf_nds32_insn_times_entry *ex9_insn; | |
| 14641 | struct elf_nds32_insn_times_entry *temp; | |
| 14642 | int target_optimize; | |
| 14643 | struct elf_nds32_link_hash_table *table; | |
| 14644 | ||
| 14645 | if (ex9_insn_head == NULL) | |
| 14646 | return; | |
| 14647 | ||
| 14648 | table = nds32_elf_hash_table (info); | |
| 14649 | target_optimize = table->target_optimize; | |
| 14650 | ex9_insn = ex9_insn_head; | |
| 14651 | while (ex9_insn) | |
| 14652 | { | |
| 14653 | ex9_relax_size = ex9_insn->times * 2 + ex9_relax_size; | |
| 14654 | temp = ex9_insn; | |
| 14655 | ex9_insn = ex9_insn->next; | |
| 14656 | free (temp); | |
| 14657 | } | |
| 14658 | ex9_insn_head = NULL; | |
| 14659 | ||
| 14660 | if ((target_optimize & NDS32_RELAX_JUMP_IFC_ON)) | |
| 14661 | { | |
| 14662 | /* Examine ifc reduce size. */ | |
| 14663 | struct elf_nds32_ifc_symbol_entry *ifc_ent = ifc_symbol_head; | |
| 14664 | struct elf_nds32_ifc_irel_list *irel_ptr = NULL; | |
| 14665 | int size = 0; | |
| 14666 | ||
| 14667 | while (ifc_ent) | |
| 14668 | { | |
| 14669 | if (ifc_ent->enable == 0) | |
| 14670 | { | |
| 14671 | /* Not ifc yet. */ | |
| 14672 | irel_ptr = ifc_ent->irel_head; | |
| 14673 | while (irel_ptr) | |
| 14674 | { | |
| 14675 | size += 2; | |
| 14676 | irel_ptr = irel_ptr->next; | |
| 14677 | } | |
| 14678 | } | |
| 14679 | size -= 2; | |
| 14680 | ifc_ent = ifc_ent->next; | |
| 14681 | } | |
| 14682 | ex9_relax_size += size; | |
| 14683 | } | |
| 14684 | } | |
| 14685 | ||
| 14686 | /* Finish ex9 table. */ | |
| 14687 | ||
| 14688 | void | |
| 14689 | nds32_elf_ex9_finish (struct bfd_link_info *link_info) | |
| 14690 | { | |
| 35c08157 KLC |
14691 | nds32_elf_code_hash_traverse (nds32_elf_examine_insn_times); |
| 14692 | nds32_elf_order_insn_times (link_info); | |
| 14693 | nds32_elf_ex9_total_relax (link_info); | |
| 14694 | /* Traverse the hash table and count its times. */ | |
| 14695 | nds32_elf_code_hash_traverse (nds32_elf_count_insn_times); | |
| 14696 | nds32_elf_order_insn_times (link_info); | |
| 14697 | nds32_elf_ex9_build_itable (link_info); | |
| 35c08157 KLC |
14698 | } |
| 14699 | ||
| 14700 | /* Relocate the entries in ex9 table. */ | |
| 14701 | ||
| 14702 | static bfd_vma | |
| 14703 | nds32_elf_ex9_reloc_insn (struct elf_nds32_insn_times_entry *ptr, | |
| 14704 | struct bfd_link_info *link_info) | |
| 14705 | { | |
| 14706 | Elf_Internal_Sym *isym = NULL; | |
| 14707 | bfd_vma relocation = -1; | |
| 1c8f6a4d | 14708 | struct elf_link_hash_entry *h; |
| 35c08157 KLC |
14709 | |
| 14710 | if (ptr->m_list != NULL) | |
| 14711 | { | |
| 14712 | /* Global symbol. */ | |
| 1c8f6a4d KLC |
14713 | h = ptr->m_list->h_list->h; |
| 14714 | if ((h->root.type == bfd_link_hash_defined | |
| 14715 | || h->root.type == bfd_link_hash_defweak) | |
| 14716 | && h->root.u.def.section != NULL | |
| 14717 | && h->root.u.def.section->output_section != NULL) | |
| 35c08157 KLC |
14718 | { |
| 14719 | ||
| 1c8f6a4d KLC |
14720 | relocation = h->root.u.def.value + |
| 14721 | h->root.u.def.section->output_section->vma + | |
| 14722 | h->root.u.def.section->output_offset; | |
| 35c08157 KLC |
14723 | relocation += ptr->m_list->irel->r_addend; |
| 14724 | } | |
| 14725 | else | |
| 14726 | relocation = 0; | |
| 14727 | } | |
| 14728 | else if (ptr->sec !=NULL) | |
| 14729 | { | |
| 14730 | /* Local symbol. */ | |
| 14731 | Elf_Internal_Sym sym; | |
| 14732 | asection *sec = NULL; | |
| 14733 | asection isec; | |
| 14734 | asection *isec_ptr = &isec; | |
| 14735 | Elf_Internal_Rela irel_backup = *(ptr->irel); | |
| 14736 | asection *sec_backup = ptr->sec; | |
| 14737 | bfd *abfd = ptr->sec->owner; | |
| 14738 | ||
| 14739 | if (!nds32_get_local_syms (abfd, sec, &isym)) | |
| 14740 | return FALSE; | |
| 14741 | isym = isym + ELF32_R_SYM (ptr->irel->r_info); | |
| 14742 | ||
| 14743 | sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 14744 | if (sec != NULL) | |
| 14745 | *isec_ptr = *sec; | |
| 14746 | sym = *isym; | |
| 14747 | ||
| 14748 | /* The purpose is same as elf_link_input_bfd. */ | |
| 14749 | if (isec_ptr != NULL | |
| 14750 | && isec_ptr->sec_info_type == SEC_INFO_TYPE_MERGE | |
| 14751 | && ELF_ST_TYPE (isym->st_info) != STT_SECTION) | |
| 14752 | { | |
| 14753 | sym.st_value = | |
| 14754 | _bfd_merged_section_offset (ptr->sec->output_section->owner, &isec_ptr, | |
| 14755 | elf_section_data (isec_ptr)->sec_info, | |
| 14756 | isym->st_value); | |
| 14757 | } | |
| 14758 | relocation = _bfd_elf_rela_local_sym (link_info->output_bfd, &sym, | |
| 14759 | &ptr->sec, ptr->irel); | |
| 14760 | if (ptr->irel != NULL) | |
| 14761 | relocation += ptr->irel->r_addend; | |
| 14762 | ||
| 14763 | /* Restore origin value since there may be some insntructions that | |
| 14764 | could not be replaced with ex9.it. */ | |
| 14765 | *(ptr->irel) = irel_backup; | |
| 14766 | ptr->sec = sec_backup; | |
| 14767 | } | |
| 14768 | ||
| 14769 | return relocation; | |
| 14770 | } | |
| 14771 | ||
| 14772 | /* Import ex9 table and build list. */ | |
| 14773 | ||
| 14774 | void | |
| 14775 | nds32_elf_ex9_import_table (struct bfd_link_info *info) | |
| 14776 | { | |
| 1c8f6a4d | 14777 | int num = 0; |
| 35c08157 | 14778 | bfd_byte *contents; |
| 35c08157 KLC |
14779 | FILE *ex9_import_file; |
| 14780 | int update_ex9_table; | |
| 14781 | struct elf_nds32_link_hash_table *table; | |
| 14782 | ||
| 14783 | table = nds32_elf_hash_table (info); | |
| 14784 | ex9_import_file = table->ex9_import_file; | |
| 1c8f6a4d | 14785 | rewind (table->ex9_import_file); |
| 35c08157 KLC |
14786 | |
| 14787 | contents = bfd_malloc (sizeof (bfd_byte) * 4); | |
| 14788 | ||
| 35c08157 | 14789 | /* Read instructions from the input file and build the list. */ |
| 1c8f6a4d | 14790 | while (!feof (ex9_import_file)) |
| 35c08157 | 14791 | { |
| 1b7e3d2f | 14792 | unsigned long insn; |
| 35c08157 KLC |
14793 | char *code; |
| 14794 | struct elf_nds32_insn_times_entry *ptr; | |
| 14795 | size_t nread; | |
| 14796 | ||
| 14797 | nread = fread (contents, sizeof (bfd_byte) * 4, 1, ex9_import_file); | |
| 1c8f6a4d KLC |
14798 | /* Ignore the final byte 0x0a. */ |
| 14799 | if (nread < 1) | |
| 14800 | break; | |
| 35c08157 KLC |
14801 | insn = bfd_getb32 (contents); |
| 14802 | code = bfd_malloc (sizeof (char) * 9); | |
| 1b7e3d2f | 14803 | snprintf (code, 9, "%08lx", (insn & 0xffffffff)); |
| 35c08157 KLC |
14804 | ptr = bfd_malloc (sizeof (struct elf_nds32_insn_times_entry)); |
| 14805 | ptr->string = code; | |
| 14806 | ptr->order = num; | |
| 14807 | ptr->times = -1; | |
| 14808 | ptr->sec = NULL; | |
| 14809 | ptr->m_list = NULL; | |
| 14810 | ptr->rel_backup.r_offset = 0; | |
| 14811 | ptr->rel_backup.r_info = 0; | |
| 14812 | ptr->rel_backup.r_addend = 0; | |
| 14813 | ptr->irel = NULL; | |
| 14814 | ptr->next = NULL; | |
| 14815 | nds32_elf_ex9_insert_entry (ptr); | |
| 35c08157 KLC |
14816 | num++; |
| 14817 | } | |
| 14818 | ||
| 14819 | update_ex9_table = table->update_ex9_table; | |
| 14820 | if (update_ex9_table == 1) | |
| 14821 | { | |
| 14822 | /* It has to consider of sethi need to use multiple page | |
| 14823 | but it not be done yet. */ | |
| 14824 | nds32_elf_code_hash_traverse (nds32_elf_examine_insn_times); | |
| 14825 | nds32_elf_order_insn_times (info); | |
| 14826 | } | |
| 14827 | } | |
| 14828 | ||
| 14829 | /* Export ex9 table. */ | |
| 14830 | ||
| 14831 | static void | |
| 14832 | nds32_elf_ex9_export (struct bfd_link_info *info, | |
| 14833 | bfd_byte *contents, int size) | |
| 14834 | { | |
| 14835 | FILE *ex9_export_file; | |
| 14836 | struct elf_nds32_link_hash_table *table; | |
| 14837 | ||
| 14838 | table = nds32_elf_hash_table (info); | |
| 14839 | ex9_export_file = table->ex9_export_file; | |
| 14840 | fwrite (contents, sizeof (bfd_byte), size, ex9_export_file); | |
| 14841 | fclose (ex9_export_file); | |
| 14842 | } | |
| 14843 | ||
| 14844 | /* Adjust relocations of J and JAL in ex9.itable. | |
| 14845 | Export ex9 table. */ | |
| 14846 | ||
| 1c8f6a4d | 14847 | static void |
| 35c08157 KLC |
14848 | nds32_elf_ex9_reloc_jmp (struct bfd_link_info *link_info) |
| 14849 | { | |
| 14850 | asection *table_sec = NULL; | |
| 14851 | struct elf_nds32_insn_times_entry *ex9_insn = ex9_insn_head; | |
| 14852 | struct elf_nds32_insn_times_entry *temp_ptr, *temp_ptr2; | |
| 14853 | bfd *it_abfd; | |
| 1c8f6a4d | 14854 | uint32_t insn, insn_with_reg, source_insn; |
| 35c08157 KLC |
14855 | bfd_byte *contents = NULL, *source_contents = NULL; |
| 14856 | int size = 0; | |
| 14857 | bfd_vma gp; | |
| 14858 | int shift, update_ex9_table, offset = 0; | |
| 14859 | reloc_howto_type *howto = NULL; | |
| 14860 | Elf_Internal_Rela rel_backup; | |
| 14861 | unsigned short insn_ex9; | |
| 14862 | struct elf_nds32_link_hash_table *table; | |
| 1c8f6a4d KLC |
14863 | FILE *ex9_export_file; |
| 14864 | static bfd_boolean done = FALSE; | |
| 14865 | ||
| 14866 | if (done) | |
| 14867 | return; | |
| 14868 | ||
| 14869 | done = TRUE; | |
| 35c08157 KLC |
14870 | |
| 14871 | table = nds32_elf_hash_table (link_info); | |
| 14872 | if (table) | |
| 14873 | table->relax_status |= NDS32_RELAX_EX9_DONE; | |
| 14874 | ||
| 14875 | ||
| 14876 | update_ex9_table = table->update_ex9_table; | |
| 14877 | /* Generated ex9.itable exactly. */ | |
| 14878 | if (update_ex9_table == 0) | |
| 14879 | { | |
| 14880 | for (it_abfd = link_info->input_bfds; it_abfd != NULL; | |
| c72f2fb2 | 14881 | it_abfd = it_abfd->link.next) |
| 35c08157 KLC |
14882 | { |
| 14883 | table_sec = bfd_get_section_by_name (it_abfd, ".ex9.itable"); | |
| 14884 | if (table_sec != NULL) | |
| 14885 | break; | |
| 14886 | } | |
| 14887 | ||
| 14888 | if (table_sec != NULL) | |
| 14889 | { | |
| 14890 | bfd *output_bfd; | |
| 35c08157 KLC |
14891 | |
| 14892 | output_bfd = table_sec->output_section->owner; | |
| 14893 | nds32_elf_final_sda_base (output_bfd, link_info, &gp, FALSE); | |
| 14894 | if (table_sec->size == 0) | |
| 14895 | return; | |
| 14896 | ||
| 0c4bd9d9 | 14897 | if (!nds32_get_section_contents (it_abfd, table_sec, &contents, TRUE)) |
| 35c08157 | 14898 | return; |
| 35c08157 KLC |
14899 | } |
| 14900 | } | |
| 14901 | else | |
| 14902 | { | |
| 14903 | /* Set gp. */ | |
| 14904 | bfd *output_bfd; | |
| 14905 | ||
| 14906 | output_bfd = link_info->input_bfds->sections->output_section->owner; | |
| 14907 | nds32_elf_final_sda_base (output_bfd, link_info, &gp, FALSE); | |
| 14908 | contents = bfd_malloc (sizeof (bfd_byte) * 2048); | |
| 14909 | } | |
| 14910 | ||
| 14911 | /* Relocate instruction. */ | |
| 14912 | while (ex9_insn) | |
| 14913 | { | |
| 14914 | bfd_vma relocation, min_relocation = 0xffffffff; | |
| 14915 | ||
| 14916 | insn = strtol (ex9_insn->string, NULL, 16); | |
| 14917 | insn_with_reg = 0; | |
| 14918 | if (ex9_insn->m_list != NULL || ex9_insn->sec != NULL) | |
| 14919 | { | |
| 14920 | if (ex9_insn->m_list) | |
| 14921 | rel_backup = ex9_insn->m_list->rel_backup; | |
| 14922 | else | |
| 14923 | rel_backup = ex9_insn->rel_backup; | |
| 14924 | ||
| 14925 | nds32_elf_get_insn_with_reg (&rel_backup, insn, &insn_with_reg); | |
| 14926 | howto = | |
| 14927 | bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE | |
| 14928 | (rel_backup.r_info)); | |
| 14929 | shift = howto->rightshift; | |
| 14930 | if (ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_25_PCREL_RELA | |
| 14931 | || ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_LO12S0_ORI_RELA | |
| 14932 | || ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_LO12S0_RELA | |
| 14933 | || ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_LO12S1_RELA | |
| 14934 | || ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_LO12S2_RELA) | |
| 14935 | { | |
| 14936 | relocation = nds32_elf_ex9_reloc_insn (ex9_insn, link_info); | |
| 14937 | insn = | |
| 14938 | insn_with_reg | ((relocation >> shift) & | |
| 14939 | nds32_elf_irel_mask (&rel_backup)); | |
| 1c8f6a4d | 14940 | bfd_putb32 (insn, contents + (ex9_insn->order) * 4); |
| 35c08157 KLC |
14941 | } |
| 14942 | else if ((ELF32_R_TYPE (rel_backup.r_info) >= R_NDS32_SDA15S3 | |
| 14943 | && ELF32_R_TYPE (rel_backup.r_info) <= R_NDS32_SDA15S0) | |
| 14944 | || (ELF32_R_TYPE (rel_backup.r_info) >= R_NDS32_SDA15S3_RELA | |
| 14945 | && ELF32_R_TYPE (rel_backup.r_info) <= R_NDS32_SDA15S0_RELA) | |
| 14946 | || (ELF32_R_TYPE (rel_backup.r_info) >= R_NDS32_SDA12S2_DP_RELA | |
| 14947 | && ELF32_R_TYPE (rel_backup.r_info) <= R_NDS32_SDA12S2_SP_RELA) | |
| 14948 | || (ELF32_R_TYPE (rel_backup.r_info) >= R_NDS32_SDA16S3_RELA | |
| 14949 | && ELF32_R_TYPE (rel_backup.r_info) <= R_NDS32_SDA19S0_RELA)) | |
| 14950 | { | |
| 14951 | relocation = nds32_elf_ex9_reloc_insn (ex9_insn, link_info); | |
| 14952 | insn = | |
| 14953 | insn_with_reg | (((relocation - gp) >> shift) & | |
| 14954 | nds32_elf_irel_mask (&rel_backup)); | |
| 1c8f6a4d | 14955 | bfd_putb32 (insn, contents + (ex9_insn->order) * 4); |
| 35c08157 KLC |
14956 | } |
| 14957 | else if (ELF32_R_TYPE (rel_backup.r_info) == R_NDS32_HI20_RELA) | |
| 14958 | { | |
| 14959 | /* Sethi may be multiple entry for one insn. */ | |
| 1c8f6a4d KLC |
14960 | if (ex9_insn->next && ex9_insn->m_list |
| 14961 | && ex9_insn->m_list == ex9_insn->next->m_list) | |
| 35c08157 KLC |
14962 | { |
| 14963 | struct elf_link_hash_entry_mul_list *m_list; | |
| 14964 | struct elf_nds32_ex9_refix *fix_ptr; | |
| 1c8f6a4d | 14965 | struct elf_link_hash_entry *h; |
| 35c08157 KLC |
14966 | |
| 14967 | temp_ptr = ex9_insn; | |
| 14968 | temp_ptr2 = ex9_insn; | |
| 14969 | m_list = ex9_insn->m_list; | |
| 14970 | while (m_list) | |
| 14971 | { | |
| 1c8f6a4d KLC |
14972 | h = m_list->h_list->h; |
| 14973 | relocation = h->root.u.def.value + | |
| 14974 | h->root.u.def.section->output_section->vma + | |
| 14975 | h->root.u.def.section->output_offset; | |
| 35c08157 KLC |
14976 | relocation += m_list->irel->r_addend; |
| 14977 | ||
| 14978 | if (relocation < min_relocation) | |
| 14979 | min_relocation = relocation; | |
| 14980 | m_list = m_list->next; | |
| 14981 | } | |
| 14982 | relocation = min_relocation; | |
| 14983 | ||
| 14984 | /* Put insntruction into ex9 table. */ | |
| 14985 | insn = insn_with_reg | |
| 14986 | | ((relocation >> shift) & nds32_elf_irel_mask (&rel_backup)); | |
| 1c8f6a4d | 14987 | bfd_putb32 (insn, contents + (ex9_insn->order) * 4); |
| 35c08157 KLC |
14988 | relocation = relocation + 0x1000; /* hi20 */ |
| 14989 | ||
| 1c8f6a4d KLC |
14990 | while (ex9_insn->next && ex9_insn->m_list |
| 14991 | && ex9_insn->m_list == ex9_insn->next->m_list) | |
| 35c08157 KLC |
14992 | { |
| 14993 | /* Multiple sethi. */ | |
| 14994 | ex9_insn = ex9_insn->next; | |
| 14995 | size += 4; | |
| 35c08157 KLC |
14996 | insn = |
| 14997 | insn_with_reg | ((relocation >> shift) & | |
| 14998 | nds32_elf_irel_mask (&rel_backup)); | |
| 1c8f6a4d | 14999 | bfd_putb32 (insn, contents + (ex9_insn->order) * 4); |
| 35c08157 KLC |
15000 | relocation = relocation + 0x1000; /* hi20 */ |
| 15001 | } | |
| 15002 | ||
| 15003 | fix_ptr = ex9_refix_head; | |
| 15004 | while (fix_ptr) | |
| 15005 | { | |
| 15006 | /* Fix ex9 insn. */ | |
| 15007 | /* temp_ptr2 points to the head of multiple sethi. */ | |
| 15008 | temp_ptr = temp_ptr2; | |
| 15009 | while (fix_ptr->order != temp_ptr->order && fix_ptr->next) | |
| 15010 | { | |
| 15011 | fix_ptr = fix_ptr->next; | |
| 15012 | } | |
| 15013 | if (fix_ptr->order != temp_ptr->order) | |
| 15014 | break; | |
| 15015 | ||
| 15016 | /* Set source insn. */ | |
| 1c8f6a4d KLC |
15017 | relocation = |
| 15018 | fix_ptr->h->root.u.def.value + | |
| 15019 | fix_ptr->h->root.u.def.section->output_section->vma + | |
| 15020 | fix_ptr->h->root.u.def.section->output_offset; | |
| 35c08157 KLC |
15021 | relocation += fix_ptr->irel->r_addend; |
| 15022 | /* sethi imm is imm20s. */ | |
| 15023 | source_insn = insn_with_reg | ((relocation >> shift) & 0xfffff); | |
| 15024 | ||
| 15025 | while (temp_ptr) | |
| 15026 | { | |
| 35c08157 KLC |
15027 | /* Match entry and source code. */ |
| 15028 | insn = bfd_getb32 (contents + (temp_ptr->order) * 4 + offset); | |
| 15029 | if (insn == source_insn) | |
| 15030 | { | |
| 15031 | /* Fix the ex9 insn. */ | |
| 15032 | if (temp_ptr->order != fix_ptr->order) | |
| 15033 | { | |
| 15034 | if (!nds32_get_section_contents | |
| 15035 | (fix_ptr->sec->owner, fix_ptr->sec, | |
| 0c4bd9d9 | 15036 | &source_contents, TRUE)) |
| 4eca0228 | 15037 | _bfd_error_handler |
| 35c08157 KLC |
15038 | (_("Linker: error cannot fixed ex9 relocation \n")); |
| 15039 | if (temp_ptr->order < 32) | |
| 15040 | insn_ex9 = INSN_EX9_IT_2; | |
| 15041 | else | |
| 15042 | insn_ex9 = INSN_EX9_IT_1; | |
| 15043 | insn_ex9 = insn_ex9 | temp_ptr->order; | |
| 15044 | bfd_putb16 (insn_ex9, source_contents + fix_ptr->irel->r_offset); | |
| 15045 | } | |
| 15046 | break; | |
| 15047 | } | |
| 15048 | else | |
| 15049 | { | |
| 15050 | if (!temp_ptr->next || temp_ptr->m_list != temp_ptr->next->m_list) | |
| 4eca0228 | 15051 | _bfd_error_handler |
| 35c08157 KLC |
15052 | (_("Linker: error cannot fixed ex9 relocation \n")); |
| 15053 | else | |
| 15054 | temp_ptr = temp_ptr->next; | |
| 15055 | } | |
| 15056 | } | |
| 15057 | fix_ptr = fix_ptr->next; | |
| 15058 | } | |
| 15059 | } | |
| 15060 | else | |
| 15061 | { | |
| 15062 | relocation = nds32_elf_ex9_reloc_insn (ex9_insn, link_info); | |
| 15063 | insn = insn_with_reg | |
| 15064 | | ((relocation >> shift) & nds32_elf_irel_mask (&rel_backup)); | |
| 1c8f6a4d | 15065 | bfd_putb32 (insn, contents + (ex9_insn->order) * 4); |
| 35c08157 KLC |
15066 | } |
| 15067 | } | |
| 15068 | } | |
| 15069 | else | |
| 15070 | { | |
| 15071 | /* Insn without relocation does not have to be fixed | |
| 15072 | if need to update export table. */ | |
| 15073 | if (update_ex9_table == 1) | |
| 15074 | bfd_putb32 (insn, contents + (ex9_insn->order) * 4); | |
| 15075 | } | |
| 15076 | ex9_insn = ex9_insn->next; | |
| 15077 | size += 4; | |
| 15078 | } | |
| 15079 | ||
| 15080 | ex9_export_file = table->ex9_export_file; | |
| 15081 | if (ex9_export_file != NULL) | |
| 1c8f6a4d | 15082 | nds32_elf_ex9_export (link_info, contents, table_sec->size); |
| 35c08157 KLC |
15083 | else if (update_ex9_table == 1) |
| 15084 | { | |
| 1c8f6a4d KLC |
15085 | table->ex9_export_file = table->ex9_import_file; |
| 15086 | rewind (table->ex9_export_file); | |
| 15087 | nds32_elf_ex9_export (link_info, contents, size); | |
| 35c08157 KLC |
15088 | } |
| 15089 | } | |
| 15090 | ||
| 15091 | /* Generate ex9 hash table. */ | |
| 15092 | ||
| 15093 | static bfd_boolean | |
| f4cb41f4 | 15094 | nds32_elf_ex9_build_hash_table (bfd *abfd, asection *sec, |
| 35c08157 KLC |
15095 | struct bfd_link_info *link_info) |
| 15096 | { | |
| 15097 | Elf_Internal_Rela *internal_relocs; | |
| 15098 | Elf_Internal_Rela *irelend; | |
| 15099 | Elf_Internal_Rela *irel; | |
| 15100 | Elf_Internal_Rela *jrel; | |
| 15101 | Elf_Internal_Rela rel_backup; | |
| 15102 | Elf_Internal_Shdr *symtab_hdr; | |
| 15103 | Elf_Internal_Sym *isym = NULL; | |
| 15104 | asection *isec; | |
| 15105 | struct elf_link_hash_entry **sym_hashes; | |
| 15106 | bfd_byte *contents = NULL; | |
| f4cb41f4 | 15107 | bfd_vma off = 0; |
| 35c08157 | 15108 | unsigned long r_symndx; |
| 1c8f6a4d | 15109 | uint32_t insn, insn_with_reg; |
| 35c08157 KLC |
15110 | struct elf_link_hash_entry *h; |
| 15111 | int data_flag, shift, align; | |
| 15112 | bfd_vma relocation; | |
| 15113 | /* Suppress ex9 if `.no_relax ex9' or inner loop. */ | |
| 15114 | reloc_howto_type *howto = NULL; | |
| 15115 | ||
| 15116 | sym_hashes = elf_sym_hashes (abfd); | |
| 15117 | /* Load section instructions, relocations, and symbol table. */ | |
| 0c4bd9d9 | 15118 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE)) |
| 35c08157 KLC |
15119 | return FALSE; |
| 15120 | ||
| 15121 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, | |
| 15122 | TRUE /* keep_memory */); | |
| 15123 | irelend = internal_relocs + sec->reloc_count; | |
| 15124 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
| 15125 | if (!nds32_get_local_syms (abfd, sec, &isym)) | |
| 15126 | return FALSE; | |
| 15127 | ||
| 15128 | /* Check the object if enable ex9. */ | |
| 15129 | irel = find_relocs_at_address (internal_relocs, internal_relocs, irelend, | |
| 15130 | R_NDS32_RELAX_ENTRY); | |
| 15131 | ||
| 15132 | /* Check this section trigger ex9 relaxation. */ | |
| 15133 | if (irel == NULL | |
| 15134 | || irel >= irelend | |
| 15135 | || ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_ENTRY | |
| 15136 | || (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY | |
| 15137 | && !(irel->r_addend & R_NDS32_RELAX_ENTRY_EX9_FLAG))) | |
| 15138 | return TRUE; | |
| 15139 | ||
| 15140 | irel = internal_relocs; | |
| 15141 | ||
| 15142 | /* Push each insn into hash table. */ | |
| 15143 | while (off < sec->size) | |
| 15144 | { | |
| 15145 | char code[10]; | |
| 15146 | struct elf_nds32_code_hash_entry *entry; | |
| 15147 | ||
| 15148 | while (irel != NULL && irel < irelend && irel->r_offset < off) | |
| 15149 | irel++; | |
| 15150 | ||
| 1c8f6a4d KLC |
15151 | data_flag = nds32_elf_ex9_relocation_check (link_info, &irel, irelend, |
| 15152 | NULL, sec, &off, contents); | |
| 35c08157 KLC |
15153 | if (data_flag & DATA_EXIST) |
| 15154 | { | |
| 15155 | /* We save the move offset in the highest byte. */ | |
| 15156 | off += (data_flag >> 24); | |
| 15157 | continue; | |
| 15158 | } | |
| 15159 | ||
| 15160 | if (*(contents + off) & 0x80) | |
| 15161 | { | |
| 15162 | off += 2; | |
| 15163 | } | |
| 15164 | else | |
| 15165 | { | |
| 15166 | h = NULL; | |
| 15167 | isec = NULL; | |
| 15168 | jrel = NULL; | |
| 15169 | rel_backup.r_info = 0; | |
| 15170 | rel_backup.r_offset = 0; | |
| 15171 | rel_backup.r_addend = 0; | |
| 15172 | /* Load the instruction and its opcode with register for comparing. */ | |
| 15173 | insn = bfd_getb32 (contents + off); | |
| 15174 | insn_with_reg = 0; | |
| 15175 | if (irel != NULL && irel < irelend && irel->r_offset == off) | |
| 15176 | { | |
| 15177 | nds32_elf_get_insn_with_reg (irel, insn, &insn_with_reg); | |
| 15178 | howto = bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel->r_info)); | |
| 15179 | shift = howto->rightshift; | |
| 15180 | align = (1 << shift) - 1; | |
| 15181 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_25_PCREL_RELA | |
| 15182 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_HI20_RELA | |
| 15183 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S0_ORI_RELA | |
| 15184 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S0_RELA | |
| 15185 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S1_RELA | |
| 15186 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_RELA | |
| 15187 | ||(ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3 | |
| 15188 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0) | |
| 15189 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3_RELA | |
| 15190 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0_RELA) | |
| 15191 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA12S2_DP_RELA | |
| 15192 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA12S2_SP_RELA) | |
| 15193 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA16S3_RELA | |
| 15194 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA19S0_RELA)) | |
| 15195 | { | |
| 15196 | r_symndx = ELF32_R_SYM (irel->r_info); | |
| 15197 | jrel = irel; | |
| 15198 | rel_backup = *irel; | |
| 15199 | if (r_symndx < symtab_hdr->sh_info) | |
| 15200 | { | |
| 15201 | /* Local symbol. */ | |
| 15202 | int shndx = isym[r_symndx].st_shndx; | |
| 15203 | ||
| 15204 | bfd_vma st_value = (isym + r_symndx)->st_value; | |
| 15205 | isec = elf_elfsections (abfd)[shndx]->bfd_section; | |
| 15206 | relocation = (isec->output_section->vma + isec->output_offset | |
| 15207 | + st_value + irel->r_addend); | |
| 15208 | } | |
| 15209 | else | |
| 15210 | { | |
| 15211 | /* External symbol. */ | |
| 15212 | bfd_boolean warned ATTRIBUTE_UNUSED; | |
| 15213 | bfd_boolean ignored ATTRIBUTE_UNUSED; | |
| 15214 | bfd_boolean unresolved_reloc ATTRIBUTE_UNUSED; | |
| 15215 | asection *sym_sec; | |
| 15216 | ||
| 15217 | /* Maybe there is a better way to get h and relocation */ | |
| 15218 | RELOC_FOR_GLOBAL_SYMBOL (link_info, abfd, sec, irel, | |
| 15219 | r_symndx, symtab_hdr, sym_hashes, | |
| 15220 | h, sym_sec, relocation, | |
| 15221 | unresolved_reloc, warned, ignored); | |
| 15222 | relocation += irel->r_addend; | |
| 1c8f6a4d KLC |
15223 | if ((h->root.type != bfd_link_hash_defined |
| 15224 | && h->root.type != bfd_link_hash_defweak) | |
| 15225 | || strcmp (h->root.root.string, "_FP_BASE_") == 0) | |
| 35c08157 KLC |
15226 | { |
| 15227 | off += 4; | |
| 15228 | continue; | |
| 15229 | } | |
| 15230 | } | |
| 15231 | ||
| 15232 | /* Check for gp relative instruction alignment. */ | |
| 15233 | if ((ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3 | |
| 15234 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0) | |
| 15235 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA15S3_RELA | |
| 15236 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA15S0_RELA) | |
| 15237 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA12S2_DP_RELA | |
| 15238 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA12S2_SP_RELA) | |
| 15239 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_SDA16S3_RELA | |
| 15240 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_SDA19S0_RELA)) | |
| 15241 | { | |
| 15242 | bfd_vma gp; | |
| 15243 | bfd *output_bfd = sec->output_section->owner; | |
| 15244 | bfd_reloc_status_type r; | |
| 15245 | ||
| 15246 | /* If the symbol is in the abs section, the out_bfd will be null. | |
| 15247 | This happens when the relocation has a symbol@GOTOFF. */ | |
| 15248 | r = nds32_elf_final_sda_base (output_bfd, link_info, &gp, FALSE); | |
| 15249 | if (r != bfd_reloc_ok) | |
| 15250 | { | |
| 15251 | off += 4; | |
| 15252 | continue; | |
| 15253 | } | |
| 15254 | ||
| 15255 | relocation -= gp; | |
| 15256 | ||
| 15257 | /* Make sure alignment is correct. */ | |
| 15258 | if (relocation & align) | |
| 15259 | { | |
| 15260 | /* Incorrect alignment. */ | |
| 4eca0228 | 15261 | _bfd_error_handler |
| 695344c0 | 15262 | /* xgettext:c-format */ |
| d42c267e AM |
15263 | (_("%B: warning: unaligned small data access " |
| 15264 | "for entry: {%Ld, %Ld, %Ld}, addr = %#Lx, align = %#x"), | |
| dae82561 | 15265 | abfd, irel->r_offset, |
| 35c08157 KLC |
15266 | irel->r_info, irel->r_addend, relocation, align); |
| 15267 | off += 4; | |
| 15268 | continue; | |
| 15269 | } | |
| 15270 | } | |
| 15271 | ||
| 15272 | insn = insn_with_reg | |
| 15273 | | ((relocation >> shift) & nds32_elf_irel_mask (irel)); | |
| 15274 | } | |
| 15275 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN | |
| 1c8f6a4d KLC |
15276 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END |
| 15277 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE) | |
| 35c08157 KLC |
15278 | { |
| 15279 | /* These relocations do not have to relocate contens, so it can | |
| 15280 | be regard as instruction without relocation. */ | |
| 15281 | } | |
| 15282 | else | |
| 15283 | { | |
| 15284 | off += 4; | |
| 15285 | continue; | |
| 15286 | } | |
| 15287 | } | |
| 15288 | ||
| 1c8f6a4d | 15289 | snprintf (code, sizeof (code), "%08x", insn); |
| 35c08157 KLC |
15290 | /* Copy "code". */ |
| 15291 | entry = (struct elf_nds32_code_hash_entry*) | |
| 15292 | bfd_hash_lookup (&ex9_code_table, code, TRUE, TRUE); | |
| 15293 | if (entry == NULL) | |
| 15294 | { | |
| 4eca0228 | 15295 | _bfd_error_handler |
| d42c267e | 15296 | (_("failed creating ex9.it %s hash table entry"), code); |
| 35c08157 KLC |
15297 | return FALSE; |
| 15298 | } | |
| 15299 | if (h) | |
| 15300 | { | |
| 15301 | if (h->root.type == bfd_link_hash_undefined) | |
| 15302 | return TRUE; | |
| 15303 | /* Global symbol. */ | |
| 15304 | /* In order to do sethi with different symbol but same value. */ | |
| 15305 | if (entry->m_list == NULL) | |
| 15306 | { | |
| 15307 | struct elf_link_hash_entry_mul_list *m_list_new; | |
| 15308 | struct elf_link_hash_entry_list *h_list_new; | |
| 15309 | ||
| 15310 | m_list_new = (struct elf_link_hash_entry_mul_list *) | |
| 15311 | bfd_malloc (sizeof (struct elf_link_hash_entry_mul_list)); | |
| 15312 | h_list_new = (struct elf_link_hash_entry_list *) | |
| 15313 | bfd_malloc (sizeof (struct elf_link_hash_entry_list)); | |
| 15314 | entry->m_list = m_list_new; | |
| 15315 | m_list_new->h_list = h_list_new; | |
| 15316 | m_list_new->rel_backup = rel_backup; | |
| 15317 | m_list_new->times = 1; | |
| 15318 | m_list_new->irel = jrel; | |
| 15319 | m_list_new->next = NULL; | |
| 15320 | h_list_new->h = h; | |
| 15321 | h_list_new->next = NULL; | |
| 15322 | } | |
| 15323 | else | |
| 15324 | { | |
| 15325 | struct elf_link_hash_entry_mul_list *m_list = entry->m_list; | |
| 15326 | struct elf_link_hash_entry_list *h_list; | |
| 15327 | ||
| 15328 | while (m_list) | |
| 15329 | { | |
| 15330 | /* Build the different symbols that point to the same address. */ | |
| 15331 | h_list = m_list->h_list; | |
| 15332 | if (h_list->h->root.u.def.value == h->root.u.def.value | |
| 15333 | && h_list->h->root.u.def.section->output_section->vma | |
| 15334 | == h->root.u.def.section->output_section->vma | |
| 15335 | && h_list->h->root.u.def.section->output_offset | |
| 15336 | == h->root.u.def.section->output_offset | |
| 15337 | && m_list->rel_backup.r_addend == rel_backup.r_addend) | |
| 15338 | { | |
| 15339 | m_list->times++; | |
| 15340 | m_list->irel = jrel; | |
| 15341 | while (h_list->h != h && h_list->next) | |
| 15342 | h_list = h_list->next; | |
| 15343 | if (h_list->h != h) | |
| 15344 | { | |
| 15345 | struct elf_link_hash_entry_list *h_list_new; | |
| 15346 | ||
| 15347 | h_list_new = (struct elf_link_hash_entry_list *) | |
| 15348 | bfd_malloc (sizeof (struct elf_link_hash_entry_list)); | |
| 15349 | h_list->next = h_list_new; | |
| 15350 | h_list_new->h = h; | |
| 15351 | h_list_new->next = NULL; | |
| 15352 | } | |
| 15353 | break; | |
| 15354 | } | |
| 15355 | /* The sethi case may have different address but the | |
| 15356 | hi20 is the same. */ | |
| 15357 | else if (ELF32_R_TYPE (jrel->r_info) == R_NDS32_HI20_RELA | |
| 15358 | && m_list->next == NULL) | |
| 15359 | { | |
| 15360 | struct elf_link_hash_entry_mul_list *m_list_new; | |
| 15361 | struct elf_link_hash_entry_list *h_list_new; | |
| 15362 | ||
| 15363 | m_list_new = (struct elf_link_hash_entry_mul_list *) | |
| 15364 | bfd_malloc (sizeof (struct elf_link_hash_entry_mul_list)); | |
| 15365 | h_list_new = (struct elf_link_hash_entry_list *) | |
| 15366 | bfd_malloc (sizeof (struct elf_link_hash_entry_list)); | |
| 15367 | m_list->next = m_list_new; | |
| 15368 | m_list_new->h_list = h_list_new; | |
| 15369 | m_list_new->rel_backup = rel_backup; | |
| 15370 | m_list_new->times = 1; | |
| 15371 | m_list_new->irel = jrel; | |
| 15372 | m_list_new->next = NULL; | |
| 15373 | h_list_new->h = h; | |
| 15374 | h_list_new->next = NULL; | |
| 15375 | break; | |
| 15376 | } | |
| 15377 | m_list = m_list->next; | |
| 15378 | } | |
| 15379 | if (!m_list) | |
| 15380 | { | |
| 15381 | off += 4; | |
| 15382 | continue; | |
| 15383 | } | |
| 15384 | } | |
| 15385 | } | |
| 15386 | else | |
| 15387 | { | |
| 15388 | /* Local symbol and insn without relocation*/ | |
| 15389 | entry->times++; | |
| 15390 | entry->rel_backup = rel_backup; | |
| 15391 | } | |
| 15392 | ||
| 15393 | /* Use in sethi insn with constant and global symbol in same format. */ | |
| 15394 | if (!jrel) | |
| 15395 | entry->const_insn = 1; | |
| 15396 | else | |
| 15397 | entry->irel = jrel; | |
| 15398 | entry->sec = isec; | |
| 15399 | off += 4; | |
| 15400 | } | |
| 15401 | } | |
| 15402 | return TRUE; | |
| 15403 | } | |
| 15404 | ||
| 15405 | /* Set the _ITB_BASE, and point it to ex9 table. */ | |
| 15406 | ||
| 15407 | bfd_boolean | |
| 15408 | nds32_elf_ex9_itb_base (struct bfd_link_info *link_info) | |
| 15409 | { | |
| 15410 | bfd *abfd; | |
| 15411 | asection *sec; | |
| 15412 | bfd *output_bfd = NULL; | |
| 15413 | struct bfd_link_hash_entry *bh = NULL; | |
| 35c08157 KLC |
15414 | |
| 15415 | if (is_ITB_BASE_set == 1) | |
| 15416 | return TRUE; | |
| 15417 | ||
| 15418 | is_ITB_BASE_set = 1; | |
| 15419 | ||
| 1c8f6a4d KLC |
15420 | bh = bfd_link_hash_lookup (link_info->hash, "_ITB_BASE_", FALSE, FALSE, TRUE); |
| 15421 | ||
| 15422 | if (bh && (bh->type == bfd_link_hash_defined | |
| 15423 | || bh->type == bfd_link_hash_defweak)) | |
| 15424 | return TRUE; | |
| 35c08157 KLC |
15425 | |
| 15426 | for (abfd = link_info->input_bfds; abfd != NULL; | |
| c72f2fb2 | 15427 | abfd = abfd->link.next) |
| 35c08157 KLC |
15428 | { |
| 15429 | sec = bfd_get_section_by_name (abfd, ".ex9.itable"); | |
| 15430 | if (sec != NULL) | |
| 15431 | { | |
| 15432 | output_bfd = sec->output_section->owner; | |
| 15433 | break; | |
| 15434 | } | |
| 15435 | } | |
| 15436 | if (output_bfd == NULL) | |
| 15437 | { | |
| 15438 | output_bfd = link_info->output_bfd; | |
| 15439 | if (output_bfd->sections == NULL) | |
| 15440 | return TRUE; | |
| 15441 | else | |
| 15442 | sec = bfd_abs_section_ptr; | |
| 15443 | } | |
| 15444 | bh = bfd_link_hash_lookup (link_info->hash, "_ITB_BASE_", | |
| 15445 | FALSE, FALSE, TRUE); | |
| 15446 | return (_bfd_generic_link_add_one_symbol | |
| 15447 | (link_info, output_bfd, "_ITB_BASE_", | |
| 1c8f6a4d | 15448 | BSF_GLOBAL | BSF_WEAK, sec, 0, |
| 35c08157 KLC |
15449 | (const char *) NULL, FALSE, get_elf_backend_data |
| 15450 | (output_bfd)->collect, &bh)); | |
| 15451 | } /* End EX9.IT */ | |
| 15452 | \f | |
| 15453 | ||
| 15454 | #define ELF_ARCH bfd_arch_nds32 | |
| 15455 | #define ELF_MACHINE_CODE EM_NDS32 | |
| 15456 | #define ELF_MAXPAGESIZE 0x1000 | |
| 1c8f6a4d | 15457 | #define ELF_TARGET_ID NDS32_ELF_DATA |
| 35c08157 | 15458 | |
| 6d00b590 | 15459 | #define TARGET_BIG_SYM nds32_elf32_be_vec |
| 35c08157 | 15460 | #define TARGET_BIG_NAME "elf32-nds32be" |
| 6d00b590 | 15461 | #define TARGET_LITTLE_SYM nds32_elf32_le_vec |
| 35c08157 KLC |
15462 | #define TARGET_LITTLE_NAME "elf32-nds32le" |
| 15463 | ||
| 15464 | #define elf_info_to_howto nds32_info_to_howto | |
| 15465 | #define elf_info_to_howto_rel nds32_info_to_howto_rel | |
| 15466 | ||
| 15467 | #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create | |
| 15468 | #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data | |
| 15469 | #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data | |
| 15470 | #define bfd_elf32_bfd_relax_section nds32_elf_relax_section | |
| 15471 | #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags | |
| 15472 | ||
| 1c8f6a4d | 15473 | #define bfd_elf32_mkobject nds32_elf_mkobject |
| 35c08157 KLC |
15474 | #define elf_backend_action_discarded nds32_elf_action_discarded |
| 15475 | #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook | |
| 15476 | #define elf_backend_check_relocs nds32_elf_check_relocs | |
| 15477 | #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol | |
| 15478 | #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections | |
| 15479 | #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections | |
| 15480 | #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol | |
| 15481 | #define elf_backend_size_dynamic_sections nds32_elf_size_dynamic_sections | |
| 15482 | #define elf_backend_relocate_section nds32_elf_relocate_section | |
| 15483 | #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook | |
| 35c08157 KLC |
15484 | #define elf_backend_grok_prstatus nds32_elf_grok_prstatus |
| 15485 | #define elf_backend_grok_psinfo nds32_elf_grok_psinfo | |
| 15486 | #define elf_backend_reloc_type_class nds32_elf_reloc_type_class | |
| 15487 | #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol | |
| 15488 | #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook | |
| 15489 | #define elf_backend_output_arch_syms nds32_elf_output_arch_syms | |
| 15490 | #define elf_backend_object_p nds32_elf_object_p | |
| 15491 | #define elf_backend_final_write_processing nds32_elf_final_write_processing | |
| 15492 | #define elf_backend_special_sections nds32_elf_special_sections | |
| 1c8f6a4d KLC |
15493 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
| 15494 | nds32_elf_get_relocated_section_contents | |
| 35c08157 KLC |
15495 | |
| 15496 | #define elf_backend_can_gc_sections 1 | |
| 15497 | #define elf_backend_can_refcount 1 | |
| 15498 | #define elf_backend_want_got_plt 1 | |
| 15499 | #define elf_backend_plt_readonly 1 | |
| 15500 | #define elf_backend_want_plt_sym 0 | |
| 15501 | #define elf_backend_got_header_size 12 | |
| 15502 | #define elf_backend_may_use_rel_p 1 | |
| 15503 | #define elf_backend_default_use_rela_p 1 | |
| 15504 | #define elf_backend_may_use_rela_p 1 | |
| 64f52338 | 15505 | #define elf_backend_dtrel_excludes_plt 1 |
| 35c08157 KLC |
15506 | |
| 15507 | #include "elf32-target.h" | |
| 15508 | ||
| 15509 | #undef ELF_MAXPAGESIZE | |
| 15510 | #define ELF_MAXPAGESIZE 0x2000 | |
| 15511 | ||
| 15512 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15513 | #define TARGET_BIG_SYM nds32_elf32_linux_be_vec |
| 35c08157 KLC |
15514 | #undef TARGET_BIG_NAME |
| 15515 | #define TARGET_BIG_NAME "elf32-nds32be-linux" | |
| 15516 | #undef TARGET_LITTLE_SYM | |
| 6d00b590 | 15517 | #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec |
| 35c08157 KLC |
15518 | #undef TARGET_LITTLE_NAME |
| 15519 | #define TARGET_LITTLE_NAME "elf32-nds32le-linux" | |
| 15520 | #undef elf32_bed | |
| 15521 | #define elf32_bed elf32_nds32_lin_bed | |
| 15522 | ||
| 15523 | #include "elf32-target.h" |