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35c08157 | 1 | /* NDS32-specific support for 32-bit ELF. |
fd67aa11 | 2 | Copyright (C) 2012-2024 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" | |
35c08157 KLC |
25 | #include "bfdlink.h" |
26 | #include "libbfd.h" | |
27 | #include "elf-bfd.h" | |
28 | #include "libiberty.h" | |
35c08157 KLC |
29 | #include "elf/nds32.h" |
30 | #include "opcode/nds32.h" | |
31 | #include "elf32-nds32.h" | |
32 | #include "opcode/cgen.h" | |
33 | #include "../opcodes/nds32-opc.h" | |
34 | ||
bb294208 AM |
35 | /* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */ |
36 | #define OCTETS_PER_BYTE(ABFD, SEC) 1 | |
37 | ||
35c08157 KLC |
38 | /* Relocation HOWTO functions. */ |
39 | static bfd_reloc_status_type nds32_elf_ignore_reloc | |
40 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
41 | static bfd_reloc_status_type nds32_elf_9_pcrel_reloc | |
42 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
43 | static bfd_reloc_status_type nds32_elf_hi20_reloc | |
44 | (bfd *, arelent *, asymbol *, void *, | |
45 | asection *, bfd *, char **); | |
46 | static bfd_reloc_status_type nds32_elf_lo12_reloc | |
47 | (bfd *, arelent *, asymbol *, void *, | |
48 | asection *, bfd *, char **); | |
49 | static bfd_reloc_status_type nds32_elf_generic_reloc | |
50 | (bfd *, arelent *, asymbol *, void *, | |
51 | asection *, bfd *, char **); | |
52 | static bfd_reloc_status_type nds32_elf_sda15_reloc | |
53 | (bfd *, arelent *, asymbol *, void *, | |
54 | asection *, bfd *, char **); | |
55 | ||
56 | /* Helper functions for HOWTO. */ | |
57 | static bfd_reloc_status_type nds32_elf_do_9_pcrel_reloc | |
58 | (bfd *, reloc_howto_type *, asection *, bfd_byte *, bfd_vma, | |
59 | asection *, bfd_vma, bfd_vma); | |
35c08157 KLC |
60 | |
61 | /* Nds32 helper functions. */ | |
35c08157 | 62 | static bfd_vma calculate_memory_address |
fbaf61ad | 63 | (bfd *, Elf_Internal_Rela *, Elf_Internal_Sym *, Elf_Internal_Shdr *); |
0c4bd9d9 | 64 | static int nds32_get_section_contents (bfd *, asection *, |
0a1b45a2 | 65 | bfd_byte **, bool); |
35c08157 KLC |
66 | static int nds32_get_local_syms (bfd *, asection *ATTRIBUTE_UNUSED, |
67 | Elf_Internal_Sym **); | |
0a1b45a2 | 68 | static bool nds32_relax_fp_as_gp |
35c08157 KLC |
69 | (struct bfd_link_info *link_info, bfd *abfd, asection *sec, |
70 | Elf_Internal_Rela *internal_relocs, Elf_Internal_Rela *irelend, | |
71 | Elf_Internal_Sym *isymbuf); | |
0a1b45a2 | 72 | static bool nds32_fag_remove_unused_fpbase |
35c08157 KLC |
73 | (bfd *abfd, asection *sec, Elf_Internal_Rela *internal_relocs, |
74 | Elf_Internal_Rela *irelend); | |
75 | ||
76 | enum | |
77 | { | |
78 | MACH_V1 = bfd_mach_n1h, | |
79 | MACH_V2 = bfd_mach_n1h_v2, | |
80 | MACH_V3 = bfd_mach_n1h_v3, | |
81 | MACH_V3M = bfd_mach_n1h_v3m | |
82 | }; | |
83 | ||
84 | #define MIN(a, b) ((a) > (b) ? (b) : (a)) | |
85 | #define MAX(a, b) ((a) > (b) ? (a) : (b)) | |
86 | ||
87 | /* The name of the dynamic interpreter. This is put in the .interp | |
88 | section. */ | |
89 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
90 | ||
fbaf61ad NC |
91 | #define NDS32_GUARD_SEC_P(flags) ((flags) & SEC_ALLOC \ |
92 | && (flags) & SEC_LOAD \ | |
93 | && (flags) & SEC_READONLY) | |
94 | ||
35c08157 KLC |
95 | /* The nop opcode we use. */ |
96 | #define NDS32_NOP32 0x40000009 | |
97 | #define NDS32_NOP16 0x9200 | |
98 | ||
99 | /* The size in bytes of an entry in the procedure linkage table. */ | |
100 | #define PLT_ENTRY_SIZE 24 | |
101 | #define PLT_HEADER_SIZE 24 | |
102 | ||
103 | /* The first entry in a procedure linkage table are reserved, | |
104 | and the initial contents are unimportant (we zero them out). | |
105 | Subsequent entries look like this. */ | |
07d6d2b8 AM |
106 | #define PLT0_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(.got+4) */ |
107 | #define PLT0_ENTRY_WORD1 0x58f78000 /* ori r15, r25, LO12(.got+4) */ | |
108 | #define PLT0_ENTRY_WORD2 0x05178000 /* lwi r17, [r15+0] */ | |
109 | #define PLT0_ENTRY_WORD3 0x04f78001 /* lwi r15, [r15+4] */ | |
110 | #define PLT0_ENTRY_WORD4 0x4a003c00 /* jr r15 */ | |
35c08157 KLC |
111 | |
112 | /* $ta is change to $r15 (from $r25). */ | |
113 | #define PLT0_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[1]@GOT) */ | |
07d6d2b8 AM |
114 | #define PLT0_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[1]@GOT) */ |
115 | #define PLT0_PIC_ENTRY_WORD2 0x40f7f400 /* add r15, gp, r15 */ | |
116 | #define PLT0_PIC_ENTRY_WORD3 0x05178000 /* lwi r17, [r15+0] */ | |
117 | #define PLT0_PIC_ENTRY_WORD4 0x04f78001 /* lwi r15, [r15+4] */ | |
118 | #define PLT0_PIC_ENTRY_WORD5 0x4a003c00 /* jr r15 */ | |
119 | ||
120 | #define PLT_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(&got[n+3]) */ | |
121 | #define PLT_ENTRY_WORD1 0x04f78000 /* lwi r15, r15, LO12(&got[n+3]) */ | |
122 | #define PLT_ENTRY_WORD2 0x4a003c00 /* jr r15 */ | |
123 | #define PLT_ENTRY_WORD3 0x45000000 /* movi r16, sizeof(RELA) * n */ | |
124 | #define PLT_ENTRY_WORD4 0x48000000 /* j .plt0. */ | |
35c08157 KLC |
125 | |
126 | #define PLT_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[n+3]@GOT) */ | |
07d6d2b8 AM |
127 | #define PLT_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[n+3]@GOT) */ |
128 | #define PLT_PIC_ENTRY_WORD2 0x38febc02 /* lw r15, [gp+r15] */ | |
129 | #define PLT_PIC_ENTRY_WORD3 0x4a003c00 /* jr r15 */ | |
130 | #define PLT_PIC_ENTRY_WORD4 0x45000000 /* movi r16, sizeof(RELA) * n */ | |
131 | #define PLT_PIC_ENTRY_WORD5 0x48000000 /* j .plt0 */ | |
35c08157 | 132 | |
1c8f6a4d KLC |
133 | /* These are macros used to get the relocation accurate value. */ |
134 | #define ACCURATE_8BIT_S1 (0x100) | |
135 | #define ACCURATE_U9BIT_S1 (0x400) | |
136 | #define ACCURATE_12BIT_S1 (0x2000) | |
137 | #define ACCURATE_14BIT_S1 (0x4000) | |
138 | #define ACCURATE_19BIT (0x40000) | |
139 | ||
140 | /* These are macros used to get the relocation conservative value. */ | |
141 | #define CONSERVATIVE_8BIT_S1 (0x100 - 4) | |
142 | #define CONSERVATIVE_14BIT_S1 (0x4000 - 4) | |
143 | #define CONSERVATIVE_16BIT_S1 (0x10000 - 4) | |
144 | #define CONSERVATIVE_24BIT_S1 (0x1000000 - 4) | |
145 | /* These must be more conservative because the address may be in | |
146 | different segment. */ | |
147 | #define CONSERVATIVE_15BIT (0x4000 - 0x1000) | |
148 | #define CONSERVATIVE_15BIT_S1 (0x8000 - 0x1000) | |
149 | #define CONSERVATIVE_15BIT_S2 (0x10000 - 0x1000) | |
150 | #define CONSERVATIVE_19BIT (0x40000 - 0x1000) | |
151 | #define CONSERVATIVE_20BIT (0x80000 - 0x1000) | |
152 | ||
35c08157 KLC |
153 | /* Size of small data/bss sections, used to calculate SDA_BASE. */ |
154 | static long got_size = 0; | |
155 | static int is_SDA_BASE_set = 0; | |
35c08157 | 156 | |
35c08157 KLC |
157 | /* Convert ELF-VER in eflags to string for debugging purpose. */ |
158 | static const char *const nds32_elfver_strtab[] = | |
159 | { | |
160 | "ELF-1.2", | |
161 | "ELF-1.3", | |
162 | "ELF-1.4", | |
163 | }; | |
164 | ||
165 | /* The nds32 linker needs to keep track of the number of relocs that it | |
166 | decides to copy in check_relocs for each symbol. This is so that | |
167 | it can discard PC relative relocs if it doesn't need them when | |
168 | linking with -Bsymbolic. We store the information in a field | |
169 | extending the regular ELF linker hash table. */ | |
170 | ||
171 | /* This structure keeps track of the number of PC relative relocs we | |
172 | have copied for a given symbol. */ | |
173 | ||
174 | struct elf_nds32_pcrel_relocs_copied | |
175 | { | |
176 | /* Next section. */ | |
177 | struct elf_nds32_pcrel_relocs_copied *next; | |
178 | /* A section in dynobj. */ | |
179 | asection *section; | |
180 | /* Number of relocs copied in this section. */ | |
181 | bfd_size_type count; | |
182 | }; | |
183 | ||
fbaf61ad NC |
184 | enum elf_nds32_tls_type |
185 | { | |
186 | GOT_UNKNOWN = (0), | |
187 | GOT_NORMAL = (1 << 0), | |
188 | GOT_TLS_LE = (1 << 1), | |
189 | GOT_TLS_IE = (1 << 2), | |
190 | GOT_TLS_IEGP = (1 << 3), | |
191 | GOT_TLS_LD = (1 << 4), | |
192 | GOT_TLS_GD = (1 << 5), | |
193 | GOT_TLS_DESC = (1 << 6), | |
194 | }; | |
195 | ||
35c08157 KLC |
196 | /* Nds32 ELF linker hash entry. */ |
197 | ||
198 | struct elf_nds32_link_hash_entry | |
199 | { | |
200 | struct elf_link_hash_entry root; | |
201 | ||
1c8f6a4d | 202 | /* For checking relocation type. */ |
fbaf61ad NC |
203 | enum elf_nds32_tls_type tls_type; |
204 | ||
205 | int offset_to_gp; | |
35c08157 KLC |
206 | }; |
207 | ||
208 | /* Get the nds32 ELF linker hash table from a link_info structure. */ | |
209 | ||
210 | #define FP_BASE_NAME "_FP_BASE_" | |
211 | static int check_start_export_sym = 0; | |
35c08157 | 212 | |
1c8f6a4d KLC |
213 | /* The offset for executable tls relaxation. */ |
214 | #define TP_OFFSET 0x0 | |
215 | ||
fbaf61ad NC |
216 | typedef struct |
217 | { | |
218 | int min_id; | |
219 | int max_id; | |
220 | int count; | |
221 | int bias; | |
222 | int init; | |
223 | } elf32_nds32_relax_group_t; | |
224 | ||
1c8f6a4d KLC |
225 | struct elf_nds32_obj_tdata |
226 | { | |
227 | struct elf_obj_tdata root; | |
228 | ||
229 | /* tls_type for each local got entry. */ | |
230 | char *local_got_tls_type; | |
fbaf61ad NC |
231 | |
232 | /* GOTPLT entries for TLS descriptors. */ | |
233 | bfd_vma *local_tlsdesc_gotent; | |
234 | ||
235 | /* for R_NDS32_RELAX_GROUP handling. */ | |
236 | elf32_nds32_relax_group_t relax_group; | |
237 | ||
238 | unsigned int hdr_size; | |
239 | int* offset_to_gp; | |
1c8f6a4d KLC |
240 | }; |
241 | ||
242 | #define elf_nds32_tdata(bfd) \ | |
243 | ((struct elf_nds32_obj_tdata *) (bfd)->tdata.any) | |
244 | ||
245 | #define elf32_nds32_local_got_tls_type(bfd) \ | |
246 | (elf_nds32_tdata (bfd)->local_got_tls_type) | |
247 | ||
fbaf61ad NC |
248 | #define elf32_nds32_local_gp_offset(bfd) \ |
249 | (elf_nds32_tdata (bfd)->offset_to_gp) | |
250 | ||
1c8f6a4d KLC |
251 | #define elf32_nds32_hash_entry(ent) ((struct elf_nds32_link_hash_entry *)(ent)) |
252 | ||
fbaf61ad NC |
253 | #define elf32_nds32_relax_group_ptr(bfd) \ |
254 | &(elf_nds32_tdata (bfd)->relax_group) | |
255 | ||
0a1b45a2 | 256 | static bool |
1c8f6a4d KLC |
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 | 263 | /* Relocations used for relocation. */ |
fbaf61ad NC |
264 | /* Define HOWTO2 (for relocation) and HOWTO3 (for relaxation) to |
265 | initialize array nds32_elf_howto_table in any order. The benefit | |
266 | is that we can add any new relocations with any numbers and don't | |
267 | need to fill the gap by lots of EMPTY_HOWTO. */ | |
268 | #define HOWTO2(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \ | |
269 | [C] = HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) | |
270 | ||
35c08157 KLC |
271 | static reloc_howto_type nds32_elf_howto_table[] = |
272 | { | |
273 | /* This reloc does nothing. */ | |
fbaf61ad NC |
274 | HOWTO2 (R_NDS32_NONE, /* type */ |
275 | 0, /* rightshift */ | |
c94cb026 | 276 | 4, /* size */ |
fbaf61ad | 277 | 32, /* bitsize */ |
0a1b45a2 | 278 | false, /* pc_relative */ |
fbaf61ad NC |
279 | 0, /* bitpos */ |
280 | complain_overflow_bitfield,/* complain_on_overflow */ | |
281 | bfd_elf_generic_reloc, /* special_function */ | |
282 | "R_NDS32_NONE", /* name */ | |
0a1b45a2 | 283 | false, /* partial_inplace */ |
fbaf61ad NC |
284 | 0, /* src_mask */ |
285 | 0, /* dst_mask */ | |
0a1b45a2 | 286 | false), /* pcrel_offset */ |
35c08157 KLC |
287 | |
288 | /* A 16 bit absolute relocation. */ | |
fbaf61ad NC |
289 | HOWTO2 (R_NDS32_16, /* type */ |
290 | 0, /* rightshift */ | |
c94cb026 | 291 | 2, /* size */ |
fbaf61ad | 292 | 16, /* bitsize */ |
0a1b45a2 | 293 | false, /* pc_relative */ |
fbaf61ad NC |
294 | 0, /* bitpos */ |
295 | complain_overflow_bitfield,/* complain_on_overflow */ | |
296 | nds32_elf_generic_reloc,/* special_function */ | |
297 | "R_NDS32_16", /* name */ | |
0a1b45a2 | 298 | false, /* partial_inplace */ |
fbaf61ad NC |
299 | 0xffff, /* src_mask */ |
300 | 0xffff, /* dst_mask */ | |
0a1b45a2 | 301 | false), /* pcrel_offset */ |
35c08157 KLC |
302 | |
303 | /* A 32 bit absolute relocation. */ | |
fbaf61ad NC |
304 | HOWTO2 (R_NDS32_32, /* type */ |
305 | 0, /* rightshift */ | |
c94cb026 | 306 | 4, /* size */ |
fbaf61ad | 307 | 32, /* bitsize */ |
0a1b45a2 | 308 | false, /* pc_relative */ |
fbaf61ad NC |
309 | 0, /* bitpos */ |
310 | complain_overflow_bitfield,/* complain_on_overflow */ | |
311 | nds32_elf_generic_reloc,/* special_function */ | |
312 | "R_NDS32_32", /* name */ | |
0a1b45a2 | 313 | false, /* partial_inplace */ |
fbaf61ad NC |
314 | 0xffffffff, /* src_mask */ |
315 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 316 | false), /* pcrel_offset */ |
35c08157 KLC |
317 | |
318 | /* A 20 bit address. */ | |
fbaf61ad NC |
319 | HOWTO2 (R_NDS32_20, /* type */ |
320 | 0, /* rightshift */ | |
c94cb026 | 321 | 4, /* size */ |
fbaf61ad | 322 | 20, /* bitsize */ |
0a1b45a2 | 323 | false, /* pc_relative */ |
fbaf61ad NC |
324 | 0, /* bitpos */ |
325 | complain_overflow_unsigned,/* complain_on_overflow */ | |
326 | nds32_elf_generic_reloc,/* special_function */ | |
327 | "R_NDS32_20", /* name */ | |
0a1b45a2 | 328 | false, /* partial_inplace */ |
fbaf61ad NC |
329 | 0xfffff, /* src_mask */ |
330 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 331 | false), /* pcrel_offset */ |
35c08157 KLC |
332 | |
333 | /* An PC Relative 9-bit relocation, shifted by 2. | |
334 | This reloc is complicated because relocations are relative to pc & -4. | |
335 | i.e. branches in the right insn slot use the address of the left insn | |
336 | slot for pc. */ | |
fbaf61ad | 337 | /* It's not clear whether this should have partial_inplace set or not. |
35c08157 KLC |
338 | Branch relaxing in the assembler can store the addend in the insn, |
339 | and if bfd_install_relocation gets called the addend may get added | |
340 | again. */ | |
fbaf61ad NC |
341 | HOWTO2 (R_NDS32_9_PCREL, /* type */ |
342 | 1, /* rightshift */ | |
c94cb026 | 343 | 2, /* size */ |
fbaf61ad | 344 | 8, /* bitsize */ |
0a1b45a2 | 345 | true, /* pc_relative */ |
fbaf61ad NC |
346 | 0, /* bitpos */ |
347 | complain_overflow_signed,/* complain_on_overflow */ | |
348 | nds32_elf_9_pcrel_reloc,/* special_function */ | |
349 | "R_NDS32_9_PCREL", /* name */ | |
0a1b45a2 | 350 | false, /* partial_inplace */ |
fbaf61ad NC |
351 | 0xff, /* src_mask */ |
352 | 0xff, /* dst_mask */ | |
0a1b45a2 | 353 | true), /* pcrel_offset */ |
35c08157 KLC |
354 | |
355 | /* A relative 15 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
356 | HOWTO2 (R_NDS32_15_PCREL, /* type */ |
357 | 1, /* rightshift */ | |
c94cb026 | 358 | 4, /* size */ |
fbaf61ad | 359 | 14, /* bitsize */ |
0a1b45a2 | 360 | true, /* pc_relative */ |
fbaf61ad NC |
361 | 0, /* bitpos */ |
362 | complain_overflow_signed,/* complain_on_overflow */ | |
363 | bfd_elf_generic_reloc, /* special_function */ | |
364 | "R_NDS32_15_PCREL", /* name */ | |
0a1b45a2 | 365 | false, /* partial_inplace */ |
fbaf61ad NC |
366 | 0x3fff, /* src_mask */ |
367 | 0x3fff, /* dst_mask */ | |
0a1b45a2 | 368 | true), /* pcrel_offset */ |
35c08157 KLC |
369 | |
370 | /* A relative 17 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
371 | HOWTO2 (R_NDS32_17_PCREL, /* type */ |
372 | 1, /* rightshift */ | |
c94cb026 | 373 | 4, /* size */ |
fbaf61ad | 374 | 16, /* bitsize */ |
0a1b45a2 | 375 | true, /* pc_relative */ |
fbaf61ad NC |
376 | 0, /* bitpos */ |
377 | complain_overflow_signed,/* complain_on_overflow */ | |
378 | bfd_elf_generic_reloc, /* special_function */ | |
379 | "R_NDS32_17_PCREL", /* name */ | |
0a1b45a2 | 380 | false, /* partial_inplace */ |
fbaf61ad NC |
381 | 0xffff, /* src_mask */ |
382 | 0xffff, /* dst_mask */ | |
0a1b45a2 | 383 | true), /* pcrel_offset */ |
35c08157 KLC |
384 | |
385 | /* A relative 25 bit relocation, right shifted by 1. */ | |
fbaf61ad | 386 | /* It's not clear whether this should have partial_inplace set or not. |
35c08157 KLC |
387 | Branch relaxing in the assembler can store the addend in the insn, |
388 | and if bfd_install_relocation gets called the addend may get added | |
389 | again. */ | |
fbaf61ad NC |
390 | HOWTO2 (R_NDS32_25_PCREL, /* type */ |
391 | 1, /* rightshift */ | |
c94cb026 | 392 | 4, /* size */ |
fbaf61ad | 393 | 24, /* bitsize */ |
0a1b45a2 | 394 | true, /* pc_relative */ |
fbaf61ad NC |
395 | 0, /* bitpos */ |
396 | complain_overflow_signed,/* complain_on_overflow */ | |
397 | bfd_elf_generic_reloc, /* special_function */ | |
398 | "R_NDS32_25_PCREL", /* name */ | |
0a1b45a2 | 399 | false, /* partial_inplace */ |
fbaf61ad NC |
400 | 0xffffff, /* src_mask */ |
401 | 0xffffff, /* dst_mask */ | |
0a1b45a2 | 402 | true), /* pcrel_offset */ |
35c08157 KLC |
403 | |
404 | /* High 20 bits of address when lower 12 is or'd in. */ | |
fbaf61ad NC |
405 | HOWTO2 (R_NDS32_HI20, /* type */ |
406 | 12, /* rightshift */ | |
c94cb026 | 407 | 4, /* size */ |
fbaf61ad | 408 | 20, /* bitsize */ |
0a1b45a2 | 409 | false, /* pc_relative */ |
fbaf61ad NC |
410 | 0, /* bitpos */ |
411 | complain_overflow_dont,/* complain_on_overflow */ | |
412 | nds32_elf_hi20_reloc, /* special_function */ | |
413 | "R_NDS32_HI20", /* name */ | |
0a1b45a2 | 414 | false, /* partial_inplace */ |
fbaf61ad NC |
415 | 0x000fffff, /* src_mask */ |
416 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 417 | false), /* pcrel_offset */ |
35c08157 KLC |
418 | |
419 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
420 | HOWTO2 (R_NDS32_LO12S3, /* type */ |
421 | 3, /* rightshift */ | |
c94cb026 | 422 | 4, /* size */ |
fbaf61ad | 423 | 9, /* bitsize */ |
0a1b45a2 | 424 | false, /* pc_relative */ |
fbaf61ad NC |
425 | 0, /* bitpos */ |
426 | complain_overflow_dont,/* complain_on_overflow */ | |
427 | nds32_elf_lo12_reloc, /* special_function */ | |
428 | "R_NDS32_LO12S3", /* name */ | |
0a1b45a2 | 429 | false, /* partial_inplace */ |
fbaf61ad NC |
430 | 0x000001ff, /* src_mask */ |
431 | 0x000001ff, /* dst_mask */ | |
0a1b45a2 | 432 | false), /* pcrel_offset */ |
35c08157 KLC |
433 | |
434 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
435 | HOWTO2 (R_NDS32_LO12S2, /* type */ |
436 | 2, /* rightshift */ | |
c94cb026 | 437 | 4, /* size */ |
fbaf61ad | 438 | 10, /* bitsize */ |
0a1b45a2 | 439 | false, /* pc_relative */ |
fbaf61ad NC |
440 | 0, /* bitpos */ |
441 | complain_overflow_dont,/* complain_on_overflow */ | |
442 | nds32_elf_lo12_reloc, /* special_function */ | |
443 | "R_NDS32_LO12S2", /* name */ | |
0a1b45a2 | 444 | false, /* partial_inplace */ |
fbaf61ad NC |
445 | 0x000003ff, /* src_mask */ |
446 | 0x000003ff, /* dst_mask */ | |
0a1b45a2 | 447 | false), /* pcrel_offset */ |
35c08157 KLC |
448 | |
449 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
450 | HOWTO2 (R_NDS32_LO12S1, /* type */ |
451 | 1, /* rightshift */ | |
c94cb026 | 452 | 4, /* size */ |
fbaf61ad | 453 | 11, /* bitsize */ |
0a1b45a2 | 454 | false, /* pc_relative */ |
fbaf61ad NC |
455 | 0, /* bitpos */ |
456 | complain_overflow_dont,/* complain_on_overflow */ | |
457 | nds32_elf_lo12_reloc, /* special_function */ | |
458 | "R_NDS32_LO12S1", /* name */ | |
0a1b45a2 | 459 | false, /* partial_inplace */ |
fbaf61ad NC |
460 | 0x000007ff, /* src_mask */ |
461 | 0x000007ff, /* dst_mask */ | |
0a1b45a2 | 462 | false), /* pcrel_offset */ |
35c08157 KLC |
463 | |
464 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
465 | HOWTO2 (R_NDS32_LO12S0, /* type */ |
466 | 0, /* rightshift */ | |
c94cb026 | 467 | 4, /* size */ |
fbaf61ad | 468 | 12, /* bitsize */ |
0a1b45a2 | 469 | false, /* pc_relative */ |
fbaf61ad NC |
470 | 0, /* bitpos */ |
471 | complain_overflow_dont,/* complain_on_overflow */ | |
472 | nds32_elf_lo12_reloc, /* special_function */ | |
473 | "R_NDS32_LO12S0", /* name */ | |
0a1b45a2 | 474 | false, /* partial_inplace */ |
fbaf61ad NC |
475 | 0x00000fff, /* src_mask */ |
476 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 477 | false), /* pcrel_offset */ |
35c08157 KLC |
478 | |
479 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
480 | HOWTO2 (R_NDS32_SDA15S3, /* type */ |
481 | 3, /* rightshift */ | |
c94cb026 | 482 | 4, /* size */ |
fbaf61ad | 483 | 15, /* bitsize */ |
0a1b45a2 | 484 | false, /* pc_relative */ |
fbaf61ad NC |
485 | 0, /* bitpos */ |
486 | complain_overflow_signed,/* complain_on_overflow */ | |
487 | nds32_elf_sda15_reloc, /* special_function */ | |
488 | "R_NDS32_SDA15S3", /* name */ | |
0a1b45a2 | 489 | false, /* partial_inplace */ |
fbaf61ad NC |
490 | 0x00007fff, /* src_mask */ |
491 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 492 | false), /* pcrel_offset */ |
35c08157 KLC |
493 | |
494 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
495 | HOWTO2 (R_NDS32_SDA15S2, /* type */ |
496 | 2, /* rightshift */ | |
c94cb026 | 497 | 4, /* size */ |
fbaf61ad | 498 | 15, /* bitsize */ |
0a1b45a2 | 499 | false, /* pc_relative */ |
fbaf61ad NC |
500 | 0, /* bitpos */ |
501 | complain_overflow_signed,/* complain_on_overflow */ | |
502 | nds32_elf_sda15_reloc, /* special_function */ | |
503 | "R_NDS32_SDA15S2", /* name */ | |
0a1b45a2 | 504 | false, /* partial_inplace */ |
fbaf61ad NC |
505 | 0x00007fff, /* src_mask */ |
506 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 507 | false), /* pcrel_offset */ |
35c08157 KLC |
508 | |
509 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
510 | HOWTO2 (R_NDS32_SDA15S1, /* type */ |
511 | 1, /* rightshift */ | |
c94cb026 | 512 | 4, /* size */ |
fbaf61ad | 513 | 15, /* bitsize */ |
0a1b45a2 | 514 | false, /* pc_relative */ |
fbaf61ad NC |
515 | 0, /* bitpos */ |
516 | complain_overflow_signed,/* complain_on_overflow */ | |
517 | nds32_elf_sda15_reloc, /* special_function */ | |
518 | "R_NDS32_SDA15S1", /* name */ | |
0a1b45a2 | 519 | false, /* partial_inplace */ |
fbaf61ad NC |
520 | 0x00007fff, /* src_mask */ |
521 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 522 | false), /* pcrel_offset */ |
35c08157 KLC |
523 | |
524 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
525 | HOWTO2 (R_NDS32_SDA15S0, /* type */ |
526 | 0, /* rightshift */ | |
c94cb026 | 527 | 4, /* size */ |
fbaf61ad | 528 | 15, /* bitsize */ |
0a1b45a2 | 529 | false, /* pc_relative */ |
fbaf61ad NC |
530 | 0, /* bitpos */ |
531 | complain_overflow_signed,/* complain_on_overflow */ | |
532 | nds32_elf_sda15_reloc, /* special_function */ | |
533 | "R_NDS32_SDA15S0", /* name */ | |
0a1b45a2 | 534 | false, /* partial_inplace */ |
fbaf61ad NC |
535 | 0x00007fff, /* src_mask */ |
536 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 537 | false), /* pcrel_offset */ |
fbaf61ad NC |
538 | |
539 | /* GNU extension to record C++ vtable hierarchy */ | |
540 | HOWTO2 (R_NDS32_GNU_VTINHERIT,/* type */ | |
541 | 0, /* rightshift */ | |
c94cb026 | 542 | 4, /* size */ |
fbaf61ad | 543 | 0, /* bitsize */ |
0a1b45a2 | 544 | false, /* pc_relative */ |
fbaf61ad NC |
545 | 0, /* bitpos */ |
546 | complain_overflow_dont,/* complain_on_overflow */ | |
547 | NULL, /* special_function */ | |
548 | "R_NDS32_GNU_VTINHERIT",/* name */ | |
0a1b45a2 | 549 | false, /* partial_inplace */ |
fbaf61ad NC |
550 | 0, /* src_mask */ |
551 | 0, /* dst_mask */ | |
0a1b45a2 | 552 | false), /* pcrel_offset */ |
fbaf61ad NC |
553 | |
554 | /* GNU extension to record C++ vtable member usage */ | |
555 | HOWTO2 (R_NDS32_GNU_VTENTRY, /* type */ | |
556 | 0, /* rightshift */ | |
c94cb026 | 557 | 4, /* size */ |
fbaf61ad | 558 | 0, /* bitsize */ |
0a1b45a2 | 559 | false, /* pc_relative */ |
fbaf61ad NC |
560 | 0, /* bitpos */ |
561 | complain_overflow_dont,/* complain_on_overflow */ | |
562 | _bfd_elf_rel_vtable_reloc_fn,/* special_function */ | |
563 | "R_NDS32_GNU_VTENTRY", /* name */ | |
0a1b45a2 | 564 | false, /* partial_inplace */ |
fbaf61ad NC |
565 | 0, /* src_mask */ |
566 | 0, /* dst_mask */ | |
0a1b45a2 | 567 | false), /* pcrel_offset */ |
35c08157 KLC |
568 | |
569 | /* A 16 bit absolute relocation. */ | |
fbaf61ad NC |
570 | HOWTO2 (R_NDS32_16_RELA, /* type */ |
571 | 0, /* rightshift */ | |
c94cb026 | 572 | 2, /* size */ |
fbaf61ad | 573 | 16, /* bitsize */ |
0a1b45a2 | 574 | false, /* pc_relative */ |
fbaf61ad NC |
575 | 0, /* bitpos */ |
576 | complain_overflow_bitfield,/* complain_on_overflow */ | |
577 | bfd_elf_generic_reloc, /* special_function */ | |
578 | "R_NDS32_16_RELA", /* name */ | |
0a1b45a2 | 579 | false, /* partial_inplace */ |
fbaf61ad NC |
580 | 0xffff, /* src_mask */ |
581 | 0xffff, /* dst_mask */ | |
0a1b45a2 | 582 | false), /* pcrel_offset */ |
35c08157 KLC |
583 | |
584 | /* A 32 bit absolute relocation. */ | |
fbaf61ad NC |
585 | HOWTO2 (R_NDS32_32_RELA, /* type */ |
586 | 0, /* rightshift */ | |
c94cb026 | 587 | 4, /* size */ |
fbaf61ad | 588 | 32, /* bitsize */ |
0a1b45a2 | 589 | false, /* pc_relative */ |
fbaf61ad NC |
590 | 0, /* bitpos */ |
591 | complain_overflow_bitfield,/* complain_on_overflow */ | |
592 | bfd_elf_generic_reloc, /* special_function */ | |
593 | "R_NDS32_32_RELA", /* name */ | |
0a1b45a2 | 594 | false, /* partial_inplace */ |
fbaf61ad NC |
595 | 0xffffffff, /* src_mask */ |
596 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 597 | false), /* pcrel_offset */ |
35c08157 KLC |
598 | |
599 | /* A 20 bit address. */ | |
fbaf61ad NC |
600 | HOWTO2 (R_NDS32_20_RELA, /* type */ |
601 | 0, /* rightshift */ | |
c94cb026 | 602 | 4, /* size */ |
fbaf61ad | 603 | 20, /* bitsize */ |
0a1b45a2 | 604 | false, /* pc_relative */ |
fbaf61ad NC |
605 | 0, /* bitpos */ |
606 | complain_overflow_signed,/* complain_on_overflow */ | |
607 | bfd_elf_generic_reloc, /* special_function */ | |
608 | "R_NDS32_20_RELA", /* name */ | |
0a1b45a2 | 609 | false, /* partial_inplace */ |
fbaf61ad NC |
610 | 0xfffff, /* src_mask */ |
611 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 612 | false), /* pcrel_offset */ |
fbaf61ad NC |
613 | |
614 | HOWTO2 (R_NDS32_9_PCREL_RELA, /* type */ | |
615 | 1, /* rightshift */ | |
c94cb026 | 616 | 2, /* size */ |
fbaf61ad | 617 | 8, /* bitsize */ |
0a1b45a2 | 618 | true, /* pc_relative */ |
fbaf61ad NC |
619 | 0, /* bitpos */ |
620 | complain_overflow_signed,/* complain_on_overflow */ | |
621 | bfd_elf_generic_reloc, /* special_function */ | |
622 | "R_NDS32_9_PCREL_RELA",/* name */ | |
0a1b45a2 | 623 | false, /* partial_inplace */ |
fbaf61ad NC |
624 | 0xff, /* src_mask */ |
625 | 0xff, /* dst_mask */ | |
0a1b45a2 | 626 | true), /* pcrel_offset */ |
35c08157 KLC |
627 | |
628 | /* A relative 15 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
629 | HOWTO2 (R_NDS32_15_PCREL_RELA,/* type */ |
630 | 1, /* rightshift */ | |
c94cb026 | 631 | 4, /* size */ |
fbaf61ad | 632 | 14, /* bitsize */ |
0a1b45a2 | 633 | true, /* pc_relative */ |
fbaf61ad NC |
634 | 0, /* bitpos */ |
635 | complain_overflow_signed,/* complain_on_overflow */ | |
636 | bfd_elf_generic_reloc, /* special_function */ | |
637 | "R_NDS32_15_PCREL_RELA",/* name */ | |
0a1b45a2 | 638 | false, /* partial_inplace */ |
fbaf61ad NC |
639 | 0x3fff, /* src_mask */ |
640 | 0x3fff, /* dst_mask */ | |
0a1b45a2 | 641 | true), /* pcrel_offset */ |
35c08157 KLC |
642 | |
643 | /* A relative 17 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
644 | HOWTO2 (R_NDS32_17_PCREL_RELA,/* type */ |
645 | 1, /* rightshift */ | |
c94cb026 | 646 | 4, /* size */ |
fbaf61ad | 647 | 16, /* bitsize */ |
0a1b45a2 | 648 | true, /* pc_relative */ |
fbaf61ad NC |
649 | 0, /* bitpos */ |
650 | complain_overflow_signed,/* complain_on_overflow */ | |
651 | bfd_elf_generic_reloc, /* special_function */ | |
652 | "R_NDS32_17_PCREL_RELA",/* name */ | |
0a1b45a2 | 653 | false, /* partial_inplace */ |
fbaf61ad NC |
654 | 0xffff, /* src_mask */ |
655 | 0xffff, /* dst_mask */ | |
0a1b45a2 | 656 | true), /* pcrel_offset */ |
35c08157 KLC |
657 | |
658 | /* A relative 25 bit relocation, right shifted by 2. */ | |
fbaf61ad NC |
659 | HOWTO2 (R_NDS32_25_PCREL_RELA,/* type */ |
660 | 1, /* rightshift */ | |
c94cb026 | 661 | 4, /* size */ |
fbaf61ad | 662 | 24, /* bitsize */ |
0a1b45a2 | 663 | true, /* pc_relative */ |
fbaf61ad NC |
664 | 0, /* bitpos */ |
665 | complain_overflow_signed,/* complain_on_overflow */ | |
666 | bfd_elf_generic_reloc, /* special_function */ | |
667 | "R_NDS32_25_PCREL_RELA",/* name */ | |
0a1b45a2 | 668 | false, /* partial_inplace */ |
fbaf61ad NC |
669 | 0xffffff, /* src_mask */ |
670 | 0xffffff, /* dst_mask */ | |
0a1b45a2 | 671 | true), /* pcrel_offset */ |
35c08157 KLC |
672 | |
673 | /* High 20 bits of address when lower 16 is or'd in. */ | |
fbaf61ad NC |
674 | HOWTO2 (R_NDS32_HI20_RELA, /* type */ |
675 | 12, /* rightshift */ | |
c94cb026 | 676 | 4, /* size */ |
fbaf61ad | 677 | 20, /* bitsize */ |
0a1b45a2 | 678 | false, /* pc_relative */ |
fbaf61ad NC |
679 | 0, /* bitpos */ |
680 | complain_overflow_dont,/* complain_on_overflow */ | |
681 | bfd_elf_generic_reloc, /* special_function */ | |
682 | "R_NDS32_HI20_RELA", /* name */ | |
0a1b45a2 | 683 | false, /* partial_inplace */ |
fbaf61ad NC |
684 | 0x000fffff, /* src_mask */ |
685 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 686 | false), /* pcrel_offset */ |
35c08157 KLC |
687 | |
688 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
689 | HOWTO2 (R_NDS32_LO12S3_RELA, /* type */ |
690 | 3, /* rightshift */ | |
c94cb026 | 691 | 4, /* size */ |
fbaf61ad | 692 | 9, /* bitsize */ |
0a1b45a2 | 693 | false, /* pc_relative */ |
fbaf61ad NC |
694 | 0, /* bitpos */ |
695 | complain_overflow_dont,/* complain_on_overflow */ | |
696 | bfd_elf_generic_reloc, /* special_function */ | |
697 | "R_NDS32_LO12S3_RELA", /* name */ | |
0a1b45a2 | 698 | false, /* partial_inplace */ |
fbaf61ad NC |
699 | 0x000001ff, /* src_mask */ |
700 | 0x000001ff, /* dst_mask */ | |
0a1b45a2 | 701 | false), /* pcrel_offset */ |
35c08157 KLC |
702 | |
703 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
704 | HOWTO2 (R_NDS32_LO12S2_RELA, /* type */ |
705 | 2, /* rightshift */ | |
c94cb026 | 706 | 4, /* size */ |
fbaf61ad | 707 | 10, /* bitsize */ |
0a1b45a2 | 708 | false, /* pc_relative */ |
fbaf61ad NC |
709 | 0, /* bitpos */ |
710 | complain_overflow_dont,/* complain_on_overflow */ | |
711 | bfd_elf_generic_reloc, /* special_function */ | |
712 | "R_NDS32_LO12S2_RELA", /* name */ | |
0a1b45a2 | 713 | false, /* partial_inplace */ |
fbaf61ad NC |
714 | 0x000003ff, /* src_mask */ |
715 | 0x000003ff, /* dst_mask */ | |
0a1b45a2 | 716 | false), /* pcrel_offset */ |
35c08157 KLC |
717 | |
718 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
719 | HOWTO2 (R_NDS32_LO12S1_RELA, /* type */ |
720 | 1, /* rightshift */ | |
c94cb026 | 721 | 4, /* size */ |
fbaf61ad | 722 | 11, /* bitsize */ |
0a1b45a2 | 723 | false, /* pc_relative */ |
fbaf61ad NC |
724 | 0, /* bitpos */ |
725 | complain_overflow_dont,/* complain_on_overflow */ | |
726 | bfd_elf_generic_reloc, /* special_function */ | |
727 | "R_NDS32_LO12S1_RELA", /* name */ | |
0a1b45a2 | 728 | false, /* partial_inplace */ |
fbaf61ad NC |
729 | 0x000007ff, /* src_mask */ |
730 | 0x000007ff, /* dst_mask */ | |
0a1b45a2 | 731 | false), /* pcrel_offset */ |
35c08157 KLC |
732 | |
733 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
734 | HOWTO2 (R_NDS32_LO12S0_RELA, /* type */ |
735 | 0, /* rightshift */ | |
c94cb026 | 736 | 4, /* size */ |
fbaf61ad | 737 | 12, /* bitsize */ |
0a1b45a2 | 738 | false, /* pc_relative */ |
fbaf61ad NC |
739 | 0, /* bitpos */ |
740 | complain_overflow_dont,/* complain_on_overflow */ | |
741 | bfd_elf_generic_reloc, /* special_function */ | |
742 | "R_NDS32_LO12S0_RELA", /* name */ | |
0a1b45a2 | 743 | false, /* partial_inplace */ |
fbaf61ad NC |
744 | 0x00000fff, /* src_mask */ |
745 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 746 | false), /* pcrel_offset */ |
35c08157 KLC |
747 | |
748 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
749 | HOWTO2 (R_NDS32_SDA15S3_RELA, /* type */ |
750 | 3, /* rightshift */ | |
c94cb026 | 751 | 4, /* size */ |
fbaf61ad | 752 | 15, /* bitsize */ |
0a1b45a2 | 753 | false, /* pc_relative */ |
fbaf61ad NC |
754 | 0, /* bitpos */ |
755 | complain_overflow_signed,/* complain_on_overflow */ | |
756 | bfd_elf_generic_reloc, /* special_function */ | |
757 | "R_NDS32_SDA15S3_RELA",/* name */ | |
0a1b45a2 | 758 | false, /* partial_inplace */ |
fbaf61ad NC |
759 | 0x00007fff, /* src_mask */ |
760 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 761 | false), /* pcrel_offset */ |
35c08157 KLC |
762 | |
763 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
764 | HOWTO2 (R_NDS32_SDA15S2_RELA, /* type */ |
765 | 2, /* rightshift */ | |
c94cb026 | 766 | 4, /* size */ |
fbaf61ad | 767 | 15, /* bitsize */ |
0a1b45a2 | 768 | false, /* pc_relative */ |
fbaf61ad NC |
769 | 0, /* bitpos */ |
770 | complain_overflow_signed,/* complain_on_overflow */ | |
771 | bfd_elf_generic_reloc, /* special_function */ | |
772 | "R_NDS32_SDA15S2_RELA",/* name */ | |
0a1b45a2 | 773 | false, /* partial_inplace */ |
fbaf61ad NC |
774 | 0x00007fff, /* src_mask */ |
775 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 776 | false), /* pcrel_offset */ |
fbaf61ad NC |
777 | |
778 | HOWTO2 (R_NDS32_SDA15S1_RELA, /* type */ | |
779 | 1, /* rightshift */ | |
c94cb026 | 780 | 4, /* size */ |
fbaf61ad | 781 | 15, /* bitsize */ |
0a1b45a2 | 782 | false, /* pc_relative */ |
fbaf61ad NC |
783 | 0, /* bitpos */ |
784 | complain_overflow_signed,/* complain_on_overflow */ | |
785 | bfd_elf_generic_reloc, /* special_function */ | |
786 | "R_NDS32_SDA15S1_RELA",/* name */ | |
0a1b45a2 | 787 | false, /* partial_inplace */ |
fbaf61ad NC |
788 | 0x00007fff, /* src_mask */ |
789 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 790 | false), /* pcrel_offset */ |
fbaf61ad NC |
791 | |
792 | HOWTO2 (R_NDS32_SDA15S0_RELA, /* type */ | |
793 | 0, /* rightshift */ | |
c94cb026 | 794 | 4, /* size */ |
fbaf61ad | 795 | 15, /* bitsize */ |
0a1b45a2 | 796 | false, /* pc_relative */ |
fbaf61ad NC |
797 | 0, /* bitpos */ |
798 | complain_overflow_signed,/* complain_on_overflow */ | |
799 | bfd_elf_generic_reloc, /* special_function */ | |
800 | "R_NDS32_SDA15S0_RELA",/* name */ | |
0a1b45a2 | 801 | false, /* partial_inplace */ |
fbaf61ad NC |
802 | 0x00007fff, /* src_mask */ |
803 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 804 | false), /* pcrel_offset */ |
fbaf61ad NC |
805 | |
806 | /* GNU extension to record C++ vtable hierarchy */ | |
807 | HOWTO2 (R_NDS32_RELA_GNU_VTINHERIT,/* type */ | |
808 | 0, /* rightshift */ | |
c94cb026 | 809 | 4, /* size */ |
fbaf61ad | 810 | 0, /* bitsize */ |
0a1b45a2 | 811 | false, /* pc_relative */ |
fbaf61ad NC |
812 | 0, /* bitpos */ |
813 | complain_overflow_dont,/* complain_on_overflow */ | |
814 | NULL, /* special_function */ | |
815 | "R_NDS32_RELA_GNU_VTINHERIT",/* name */ | |
0a1b45a2 | 816 | false, /* partial_inplace */ |
fbaf61ad NC |
817 | 0, /* src_mask */ |
818 | 0, /* dst_mask */ | |
0a1b45a2 | 819 | false), /* pcrel_offset */ |
fbaf61ad NC |
820 | |
821 | /* GNU extension to record C++ vtable member usage */ | |
822 | HOWTO2 (R_NDS32_RELA_GNU_VTENTRY,/* type */ | |
823 | 0, /* rightshift */ | |
c94cb026 | 824 | 4, /* size */ |
fbaf61ad | 825 | 0, /* bitsize */ |
0a1b45a2 | 826 | false, /* pc_relative */ |
fbaf61ad NC |
827 | 0, /* bitpos */ |
828 | complain_overflow_dont,/* complain_on_overflow */ | |
829 | _bfd_elf_rel_vtable_reloc_fn,/* special_function */ | |
830 | "R_NDS32_RELA_GNU_VTENTRY",/* name */ | |
0a1b45a2 | 831 | false, /* partial_inplace */ |
fbaf61ad NC |
832 | 0, /* src_mask */ |
833 | 0, /* dst_mask */ | |
0a1b45a2 | 834 | false), /* pcrel_offset */ |
35c08157 KLC |
835 | |
836 | /* Like R_NDS32_20, but referring to the GOT table entry for | |
837 | the symbol. */ | |
fbaf61ad NC |
838 | HOWTO2 (R_NDS32_GOT20, /* type */ |
839 | 0, /* rightshift */ | |
c94cb026 | 840 | 4, /* size */ |
fbaf61ad | 841 | 20, /* bitsize */ |
0a1b45a2 | 842 | false, /* pc_relative */ |
fbaf61ad NC |
843 | 0, /* bitpos */ |
844 | complain_overflow_signed,/* complain_on_overflow */ | |
845 | bfd_elf_generic_reloc, /* special_function */ | |
846 | "R_NDS32_GOT20", /* name */ | |
0a1b45a2 | 847 | false, /* partial_inplace */ |
fbaf61ad NC |
848 | 0xfffff, /* src_mask */ |
849 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 850 | false), /* pcrel_offset */ |
35c08157 KLC |
851 | |
852 | /* Like R_NDS32_PCREL, but referring to the procedure linkage table | |
853 | entry for the symbol. */ | |
fbaf61ad NC |
854 | HOWTO2 (R_NDS32_25_PLTREL, /* type */ |
855 | 1, /* rightshift */ | |
c94cb026 | 856 | 4, /* size */ |
fbaf61ad | 857 | 24, /* bitsize */ |
0a1b45a2 | 858 | true, /* pc_relative */ |
fbaf61ad NC |
859 | 0, /* bitpos */ |
860 | complain_overflow_signed,/* complain_on_overflow */ | |
861 | bfd_elf_generic_reloc, /* special_function */ | |
862 | "R_NDS32_25_PLTREL", /* name */ | |
0a1b45a2 | 863 | false, /* partial_inplace */ |
fbaf61ad NC |
864 | 0xffffff, /* src_mask */ |
865 | 0xffffff, /* dst_mask */ | |
0a1b45a2 | 866 | true), /* pcrel_offset */ |
35c08157 KLC |
867 | |
868 | /* This is used only by the dynamic linker. The symbol should exist | |
869 | both in the object being run and in some shared library. The | |
870 | dynamic linker copies the data addressed by the symbol from the | |
871 | shared library into the object, because the object being | |
872 | run has to have the data at some particular address. */ | |
fbaf61ad NC |
873 | HOWTO2 (R_NDS32_COPY, /* type */ |
874 | 0, /* rightshift */ | |
c94cb026 | 875 | 4, /* size */ |
fbaf61ad | 876 | 32, /* bitsize */ |
0a1b45a2 | 877 | false, /* pc_relative */ |
fbaf61ad NC |
878 | 0, /* bitpos */ |
879 | complain_overflow_bitfield,/* complain_on_overflow */ | |
880 | bfd_elf_generic_reloc, /* special_function */ | |
881 | "R_NDS32_COPY", /* name */ | |
0a1b45a2 | 882 | false, /* partial_inplace */ |
fbaf61ad NC |
883 | 0xffffffff, /* src_mask */ |
884 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 885 | false), /* pcrel_offset */ |
35c08157 KLC |
886 | |
887 | /* Like R_NDS32_20, but used when setting global offset table | |
888 | entries. */ | |
fbaf61ad NC |
889 | HOWTO2 (R_NDS32_GLOB_DAT, /* type */ |
890 | 0, /* rightshift */ | |
c94cb026 | 891 | 4, /* size */ |
fbaf61ad | 892 | 32, /* bitsize */ |
0a1b45a2 | 893 | false, /* pc_relative */ |
fbaf61ad NC |
894 | 0, /* bitpos */ |
895 | complain_overflow_bitfield,/* complain_on_overflow */ | |
896 | bfd_elf_generic_reloc, /* special_function */ | |
897 | "R_NDS32_GLOB_DAT", /* name */ | |
0a1b45a2 | 898 | false, /* partial_inplace */ |
fbaf61ad NC |
899 | 0xffffffff, /* src_mask */ |
900 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 901 | false), /* pcrel_offset */ |
35c08157 KLC |
902 | |
903 | /* Marks a procedure linkage table entry for a symbol. */ | |
fbaf61ad NC |
904 | HOWTO2 (R_NDS32_JMP_SLOT, /* type */ |
905 | 0, /* rightshift */ | |
c94cb026 | 906 | 4, /* size */ |
fbaf61ad | 907 | 32, /* bitsize */ |
0a1b45a2 | 908 | false, /* pc_relative */ |
fbaf61ad NC |
909 | 0, /* bitpos */ |
910 | complain_overflow_bitfield,/* complain_on_overflow */ | |
911 | bfd_elf_generic_reloc, /* special_function */ | |
912 | "R_NDS32_JMP_SLOT", /* name */ | |
0a1b45a2 | 913 | false, /* partial_inplace */ |
fbaf61ad NC |
914 | 0xffffffff, /* src_mask */ |
915 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 916 | false), /* pcrel_offset */ |
35c08157 KLC |
917 | |
918 | /* Used only by the dynamic linker. When the object is run, this | |
919 | longword is set to the load address of the object, plus the | |
920 | addend. */ | |
fbaf61ad NC |
921 | HOWTO2 (R_NDS32_RELATIVE, /* type */ |
922 | 0, /* rightshift */ | |
c94cb026 | 923 | 4, /* size */ |
fbaf61ad | 924 | 32, /* bitsize */ |
0a1b45a2 | 925 | false, /* pc_relative */ |
fbaf61ad NC |
926 | 0, /* bitpos */ |
927 | complain_overflow_bitfield,/* complain_on_overflow */ | |
928 | bfd_elf_generic_reloc, /* special_function */ | |
929 | "R_NDS32_RELATIVE", /* name */ | |
0a1b45a2 | 930 | false, /* partial_inplace */ |
fbaf61ad NC |
931 | 0xffffffff, /* src_mask */ |
932 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 933 | false), /* pcrel_offset */ |
fbaf61ad NC |
934 | |
935 | HOWTO2 (R_NDS32_GOTOFF, /* type */ | |
936 | 0, /* rightshift */ | |
c94cb026 | 937 | 4, /* size */ |
fbaf61ad | 938 | 20, /* bitsize */ |
0a1b45a2 | 939 | false, /* pc_relative */ |
fbaf61ad NC |
940 | 0, /* bitpos */ |
941 | complain_overflow_signed,/* complain_on_overflow */ | |
942 | bfd_elf_generic_reloc, /* special_function */ | |
943 | "R_NDS32_GOTOFF", /* name */ | |
0a1b45a2 | 944 | false, /* partial_inplace */ |
fbaf61ad NC |
945 | 0xfffff, /* src_mask */ |
946 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 947 | false), /* pcrel_offset */ |
35c08157 KLC |
948 | |
949 | /* An PC Relative 20-bit relocation used when setting PIC offset | |
950 | table register. */ | |
fbaf61ad NC |
951 | HOWTO2 (R_NDS32_GOTPC20, /* type */ |
952 | 0, /* rightshift */ | |
c94cb026 | 953 | 4, /* size */ |
fbaf61ad | 954 | 20, /* bitsize */ |
0a1b45a2 | 955 | true, /* pc_relative */ |
fbaf61ad NC |
956 | 0, /* bitpos */ |
957 | complain_overflow_signed,/* complain_on_overflow */ | |
958 | bfd_elf_generic_reloc, /* special_function */ | |
959 | "R_NDS32_GOTPC20", /* name */ | |
0a1b45a2 | 960 | false, /* partial_inplace */ |
fbaf61ad NC |
961 | 0xfffff, /* src_mask */ |
962 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 963 | true), /* pcrel_offset */ |
35c08157 KLC |
964 | |
965 | /* Like R_NDS32_HI20, but referring to the GOT table entry for | |
966 | the symbol. */ | |
fbaf61ad NC |
967 | HOWTO2 (R_NDS32_GOT_HI20, /* type */ |
968 | 12, /* rightshift */ | |
c94cb026 | 969 | 4, /* size */ |
fbaf61ad | 970 | 20, /* bitsize */ |
0a1b45a2 | 971 | false, /* pc_relative */ |
fbaf61ad NC |
972 | 0, /* bitpos */ |
973 | complain_overflow_dont,/* complain_on_overflow */ | |
974 | bfd_elf_generic_reloc, /* special_function */ | |
975 | "R_NDS32_GOT_HI20", /* name */ | |
0a1b45a2 | 976 | false, /* partial_inplace */ |
fbaf61ad NC |
977 | 0x000fffff, /* src_mask */ |
978 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 979 | false), /* pcrel_offset */ |
c94cb026 | 980 | |
fbaf61ad NC |
981 | HOWTO2 (R_NDS32_GOT_LO12, /* type */ |
982 | 0, /* rightshift */ | |
c94cb026 | 983 | 4, /* size */ |
fbaf61ad | 984 | 12, /* bitsize */ |
0a1b45a2 | 985 | false, /* pc_relative */ |
fbaf61ad NC |
986 | 0, /* bitpos */ |
987 | complain_overflow_dont,/* complain_on_overflow */ | |
988 | bfd_elf_generic_reloc, /* special_function */ | |
989 | "R_NDS32_GOT_LO12", /* name */ | |
0a1b45a2 | 990 | false, /* partial_inplace */ |
fbaf61ad NC |
991 | 0x00000fff, /* src_mask */ |
992 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 993 | false), /* pcrel_offset */ |
35c08157 KLC |
994 | |
995 | /* An PC Relative relocation used when setting PIC offset table register. | |
996 | Like R_NDS32_HI20, but referring to the GOT table entry for | |
997 | the symbol. */ | |
fbaf61ad NC |
998 | HOWTO2 (R_NDS32_GOTPC_HI20, /* type */ |
999 | 12, /* rightshift */ | |
c94cb026 | 1000 | 4, /* size */ |
fbaf61ad | 1001 | 20, /* bitsize */ |
0a1b45a2 | 1002 | false, /* pc_relative */ |
fbaf61ad NC |
1003 | 0, /* bitpos */ |
1004 | complain_overflow_dont,/* complain_on_overflow */ | |
1005 | bfd_elf_generic_reloc, /* special_function */ | |
1006 | "R_NDS32_GOTPC_HI20", /* name */ | |
0a1b45a2 | 1007 | false, /* partial_inplace */ |
fbaf61ad NC |
1008 | 0x000fffff, /* src_mask */ |
1009 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 1010 | true), /* pcrel_offset */ |
c94cb026 | 1011 | |
fbaf61ad NC |
1012 | HOWTO2 (R_NDS32_GOTPC_LO12, /* type */ |
1013 | 0, /* rightshift */ | |
c94cb026 | 1014 | 4, /* size */ |
fbaf61ad | 1015 | 12, /* bitsize */ |
0a1b45a2 | 1016 | false, /* pc_relative */ |
fbaf61ad NC |
1017 | 0, /* bitpos */ |
1018 | complain_overflow_dont,/* complain_on_overflow */ | |
1019 | bfd_elf_generic_reloc, /* special_function */ | |
1020 | "R_NDS32_GOTPC_LO12", /* name */ | |
0a1b45a2 | 1021 | false, /* partial_inplace */ |
fbaf61ad NC |
1022 | 0x00000fff, /* src_mask */ |
1023 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 1024 | true), /* pcrel_offset */ |
fbaf61ad NC |
1025 | |
1026 | HOWTO2 (R_NDS32_GOTOFF_HI20, /* type */ | |
1027 | 12, /* rightshift */ | |
c94cb026 | 1028 | 4, /* size */ |
fbaf61ad | 1029 | 20, /* bitsize */ |
0a1b45a2 | 1030 | false, /* pc_relative */ |
fbaf61ad NC |
1031 | 0, /* bitpos */ |
1032 | complain_overflow_dont,/* complain_on_overflow */ | |
1033 | bfd_elf_generic_reloc, /* special_function */ | |
1034 | "R_NDS32_GOTOFF_HI20", /* name */ | |
0a1b45a2 | 1035 | false, /* partial_inplace */ |
fbaf61ad NC |
1036 | 0x000fffff, /* src_mask */ |
1037 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 1038 | false), /* pcrel_offset */ |
c94cb026 | 1039 | |
fbaf61ad NC |
1040 | HOWTO2 (R_NDS32_GOTOFF_LO12, /* type */ |
1041 | 0, /* rightshift */ | |
c94cb026 | 1042 | 4, /* size */ |
fbaf61ad | 1043 | 12, /* bitsize */ |
0a1b45a2 | 1044 | false, /* pc_relative */ |
fbaf61ad NC |
1045 | 0, /* bitpos */ |
1046 | complain_overflow_dont,/* complain_on_overflow */ | |
1047 | bfd_elf_generic_reloc, /* special_function */ | |
1048 | "R_NDS32_GOTOFF_LO12", /* name */ | |
0a1b45a2 | 1049 | false, /* partial_inplace */ |
fbaf61ad NC |
1050 | 0x00000fff, /* src_mask */ |
1051 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 1052 | false), /* pcrel_offset */ |
35c08157 KLC |
1053 | |
1054 | /* Alignment hint for relaxable instruction. This is used with | |
1055 | R_NDS32_LABEL as a pair. Relax this instruction from 4 bytes to 2 | |
1056 | in order to make next label aligned on word boundary. */ | |
fbaf61ad NC |
1057 | HOWTO2 (R_NDS32_INSN16, /* type */ |
1058 | 0, /* rightshift */ | |
c94cb026 | 1059 | 4, /* size */ |
fbaf61ad | 1060 | 32, /* bitsize */ |
0a1b45a2 | 1061 | false, /* pc_relative */ |
fbaf61ad NC |
1062 | 0, /* bitpos */ |
1063 | complain_overflow_dont,/* complain_on_overflow */ | |
1064 | nds32_elf_ignore_reloc,/* special_function */ | |
1065 | "R_NDS32_INSN16", /* name */ | |
0a1b45a2 | 1066 | false, /* partial_inplace */ |
fbaf61ad NC |
1067 | 0x00000fff, /* src_mask */ |
1068 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 1069 | false), /* pcrel_offset */ |
35c08157 KLC |
1070 | |
1071 | /* Alignment hint for label. */ | |
fbaf61ad NC |
1072 | HOWTO2 (R_NDS32_LABEL, /* type */ |
1073 | 0, /* rightshift */ | |
c94cb026 | 1074 | 4, /* size */ |
fbaf61ad | 1075 | 32, /* bitsize */ |
0a1b45a2 | 1076 | false, /* pc_relative */ |
fbaf61ad NC |
1077 | 0, /* bitpos */ |
1078 | complain_overflow_dont,/* complain_on_overflow */ | |
1079 | nds32_elf_ignore_reloc,/* special_function */ | |
1080 | "R_NDS32_LABEL", /* name */ | |
0a1b45a2 | 1081 | false, /* partial_inplace */ |
fbaf61ad NC |
1082 | 0xffffffff, /* src_mask */ |
1083 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1084 | false), /* pcrel_offset */ |
35c08157 KLC |
1085 | |
1086 | /* Relax hint for unconditional call sequence */ | |
fbaf61ad NC |
1087 | HOWTO2 (R_NDS32_LONGCALL1, /* type */ |
1088 | 0, /* rightshift */ | |
c94cb026 | 1089 | 4, /* size */ |
fbaf61ad | 1090 | 32, /* bitsize */ |
0a1b45a2 | 1091 | false, /* pc_relative */ |
fbaf61ad NC |
1092 | 0, /* bitpos */ |
1093 | complain_overflow_dont,/* complain_on_overflow */ | |
1094 | nds32_elf_ignore_reloc,/* special_function */ | |
1095 | "R_NDS32_LONGCALL1", /* name */ | |
0a1b45a2 | 1096 | false, /* partial_inplace */ |
fbaf61ad NC |
1097 | 0xffffffff, /* src_mask */ |
1098 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1099 | false), /* pcrel_offset */ |
35c08157 KLC |
1100 | |
1101 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1102 | HOWTO2 (R_NDS32_LONGCALL2, /* type */ |
1103 | 0, /* rightshift */ | |
c94cb026 | 1104 | 4, /* size */ |
fbaf61ad | 1105 | 32, /* bitsize */ |
0a1b45a2 | 1106 | false, /* pc_relative */ |
fbaf61ad NC |
1107 | 0, /* bitpos */ |
1108 | complain_overflow_dont,/* complain_on_overflow */ | |
1109 | nds32_elf_ignore_reloc,/* special_function */ | |
1110 | "R_NDS32_LONGCALL2", /* name */ | |
0a1b45a2 | 1111 | false, /* partial_inplace */ |
fbaf61ad NC |
1112 | 0xffffffff, /* src_mask */ |
1113 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1114 | false), /* pcrel_offset */ |
35c08157 KLC |
1115 | |
1116 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1117 | HOWTO2 (R_NDS32_LONGCALL3, /* type */ |
1118 | 0, /* rightshift */ | |
c94cb026 | 1119 | 4, /* size */ |
fbaf61ad | 1120 | 32, /* bitsize */ |
0a1b45a2 | 1121 | false, /* pc_relative */ |
fbaf61ad NC |
1122 | 0, /* bitpos */ |
1123 | complain_overflow_dont,/* complain_on_overflow */ | |
1124 | nds32_elf_ignore_reloc,/* special_function */ | |
1125 | "R_NDS32_LONGCALL3", /* name */ | |
0a1b45a2 | 1126 | false, /* partial_inplace */ |
fbaf61ad NC |
1127 | 0xffffffff, /* src_mask */ |
1128 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1129 | false), /* pcrel_offset */ |
35c08157 KLC |
1130 | |
1131 | /* Relax hint for unconditional branch sequence. */ | |
fbaf61ad NC |
1132 | HOWTO2 (R_NDS32_LONGJUMP1, /* type */ |
1133 | 0, /* rightshift */ | |
c94cb026 | 1134 | 4, /* size */ |
fbaf61ad | 1135 | 32, /* bitsize */ |
0a1b45a2 | 1136 | false, /* pc_relative */ |
fbaf61ad NC |
1137 | 0, /* bitpos */ |
1138 | complain_overflow_dont,/* complain_on_overflow */ | |
1139 | nds32_elf_ignore_reloc,/* special_function */ | |
1140 | "R_NDS32_LONGJUMP1", /* name */ | |
0a1b45a2 | 1141 | false, /* partial_inplace */ |
fbaf61ad NC |
1142 | 0xffffffff, /* src_mask */ |
1143 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1144 | false), /* pcrel_offset */ |
35c08157 KLC |
1145 | |
1146 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1147 | HOWTO2 (R_NDS32_LONGJUMP2, /* type */ |
1148 | 0, /* rightshift */ | |
c94cb026 | 1149 | 4, /* size */ |
fbaf61ad | 1150 | 32, /* bitsize */ |
0a1b45a2 | 1151 | false, /* pc_relative */ |
fbaf61ad NC |
1152 | 0, /* bitpos */ |
1153 | complain_overflow_dont,/* complain_on_overflow */ | |
1154 | nds32_elf_ignore_reloc,/* special_function */ | |
1155 | "R_NDS32_LONGJUMP2", /* name */ | |
0a1b45a2 | 1156 | false, /* partial_inplace */ |
fbaf61ad NC |
1157 | 0xffffffff, /* src_mask */ |
1158 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1159 | false), /* pcrel_offset */ |
35c08157 KLC |
1160 | |
1161 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1162 | HOWTO2 (R_NDS32_LONGJUMP3, /* type */ |
1163 | 0, /* rightshift */ | |
c94cb026 | 1164 | 4, /* size */ |
fbaf61ad | 1165 | 32, /* bitsize */ |
0a1b45a2 | 1166 | false, /* pc_relative */ |
fbaf61ad NC |
1167 | 0, /* bitpos */ |
1168 | complain_overflow_dont,/* complain_on_overflow */ | |
1169 | nds32_elf_ignore_reloc,/* special_function */ | |
1170 | "R_NDS32_LONGJUMP3", /* name */ | |
0a1b45a2 | 1171 | false, /* partial_inplace */ |
fbaf61ad NC |
1172 | 0xffffffff, /* src_mask */ |
1173 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1174 | false), /* pcrel_offset */ |
35c08157 KLC |
1175 | |
1176 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1177 | HOWTO2 (R_NDS32_LOADSTORE, /* type */ |
1178 | 0, /* rightshift */ | |
c94cb026 | 1179 | 4, /* size */ |
fbaf61ad | 1180 | 32, /* bitsize */ |
0a1b45a2 | 1181 | false, /* pc_relative */ |
fbaf61ad NC |
1182 | 0, /* bitpos */ |
1183 | complain_overflow_dont,/* complain_on_overflow */ | |
1184 | nds32_elf_ignore_reloc,/* special_function */ | |
1185 | "R_NDS32_LOADSTORE", /* name */ | |
0a1b45a2 | 1186 | false, /* partial_inplace */ |
fbaf61ad NC |
1187 | 0xffffffff, /* src_mask */ |
1188 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1189 | false), /* pcrel_offset */ |
35c08157 KLC |
1190 | |
1191 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1192 | HOWTO2 (R_NDS32_9_FIXED_RELA, /* type */ |
1193 | 0, /* rightshift */ | |
c94cb026 | 1194 | 2, /* size */ |
fbaf61ad | 1195 | 16, /* bitsize */ |
0a1b45a2 | 1196 | false, /* pc_relative */ |
fbaf61ad NC |
1197 | 0, /* bitpos */ |
1198 | complain_overflow_dont,/* complain_on_overflow */ | |
1199 | nds32_elf_ignore_reloc,/* special_function */ | |
1200 | "R_NDS32_9_FIXED_RELA",/* name */ | |
0a1b45a2 | 1201 | false, /* partial_inplace */ |
fbaf61ad NC |
1202 | 0x000000ff, /* src_mask */ |
1203 | 0x000000ff, /* dst_mask */ | |
0a1b45a2 | 1204 | false), /* pcrel_offset */ |
35c08157 KLC |
1205 | |
1206 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1207 | HOWTO2 (R_NDS32_15_FIXED_RELA,/* type */ |
1208 | 0, /* rightshift */ | |
c94cb026 | 1209 | 4, /* size */ |
fbaf61ad | 1210 | 32, /* bitsize */ |
0a1b45a2 | 1211 | false, /* pc_relative */ |
fbaf61ad NC |
1212 | 0, /* bitpos */ |
1213 | complain_overflow_dont,/* complain_on_overflow */ | |
1214 | nds32_elf_ignore_reloc,/* special_function */ | |
1215 | "R_NDS32_15_FIXED_RELA",/* name */ | |
0a1b45a2 | 1216 | false, /* partial_inplace */ |
fbaf61ad NC |
1217 | 0x00003fff, /* src_mask */ |
1218 | 0x00003fff, /* dst_mask */ | |
0a1b45a2 | 1219 | false), /* pcrel_offset */ |
35c08157 KLC |
1220 | |
1221 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1222 | HOWTO2 (R_NDS32_17_FIXED_RELA,/* type */ |
1223 | 0, /* rightshift */ | |
c94cb026 | 1224 | 4, /* size */ |
fbaf61ad | 1225 | 32, /* bitsize */ |
0a1b45a2 | 1226 | false, /* pc_relative */ |
fbaf61ad NC |
1227 | 0, /* bitpos */ |
1228 | complain_overflow_dont,/* complain_on_overflow */ | |
1229 | nds32_elf_ignore_reloc,/* special_function */ | |
1230 | "R_NDS32_17_FIXED_RELA",/* name */ | |
0a1b45a2 | 1231 | false, /* partial_inplace */ |
fbaf61ad NC |
1232 | 0x0000ffff, /* src_mask */ |
1233 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 1234 | false), /* pcrel_offset */ |
35c08157 KLC |
1235 | |
1236 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1237 | HOWTO2 (R_NDS32_25_FIXED_RELA,/* type */ |
1238 | 0, /* rightshift */ | |
c94cb026 | 1239 | 4, /* size */ |
fbaf61ad | 1240 | 32, /* bitsize */ |
0a1b45a2 | 1241 | false, /* pc_relative */ |
fbaf61ad NC |
1242 | 0, /* bitpos */ |
1243 | complain_overflow_dont,/* complain_on_overflow */ | |
1244 | nds32_elf_ignore_reloc,/* special_function */ | |
1245 | "R_NDS32_25_FIXED_RELA",/* name */ | |
0a1b45a2 | 1246 | false, /* partial_inplace */ |
fbaf61ad NC |
1247 | 0x00ffffff, /* src_mask */ |
1248 | 0x00ffffff, /* dst_mask */ | |
0a1b45a2 | 1249 | false), /* pcrel_offset */ |
35c08157 KLC |
1250 | |
1251 | /* High 20 bits of PLT symbol offset relative to PC. */ | |
fbaf61ad NC |
1252 | HOWTO2 (R_NDS32_PLTREL_HI20, /* type */ |
1253 | 12, /* rightshift */ | |
c94cb026 | 1254 | 4, /* size */ |
fbaf61ad | 1255 | 20, /* bitsize */ |
0a1b45a2 | 1256 | false, /* pc_relative */ |
fbaf61ad NC |
1257 | 0, /* bitpos */ |
1258 | complain_overflow_dont,/* complain_on_overflow */ | |
1259 | bfd_elf_generic_reloc, /* special_function */ | |
1260 | "R_NDS32_PLTREL_HI20", /* name */ | |
0a1b45a2 | 1261 | false, /* partial_inplace */ |
fbaf61ad NC |
1262 | 0x000fffff, /* src_mask */ |
1263 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 1264 | false), /* pcrel_offset */ |
35c08157 KLC |
1265 | |
1266 | /* Low 12 bits of PLT symbol offset relative to PC. */ | |
fbaf61ad NC |
1267 | HOWTO2 (R_NDS32_PLTREL_LO12, /* type */ |
1268 | 0, /* rightshift */ | |
c94cb026 | 1269 | 4, /* size */ |
fbaf61ad | 1270 | 12, /* bitsize */ |
0a1b45a2 | 1271 | false, /* pc_relative */ |
fbaf61ad NC |
1272 | 0, /* bitpos */ |
1273 | complain_overflow_dont,/* complain_on_overflow */ | |
1274 | bfd_elf_generic_reloc, /* special_function */ | |
1275 | "R_NDS32_PLTREL_LO12", /* name */ | |
0a1b45a2 | 1276 | false, /* partial_inplace */ |
fbaf61ad NC |
1277 | 0x00000fff, /* src_mask */ |
1278 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 1279 | false), /* pcrel_offset */ |
35c08157 KLC |
1280 | |
1281 | /* High 20 bits of PLT symbol offset relative to GOT (GP). */ | |
fbaf61ad NC |
1282 | HOWTO2 (R_NDS32_PLT_GOTREL_HI20, /* type */ |
1283 | 12, /* rightshift */ | |
c94cb026 | 1284 | 4, /* size */ |
fbaf61ad | 1285 | 20, /* bitsize */ |
0a1b45a2 | 1286 | false, /* pc_relative */ |
fbaf61ad NC |
1287 | 0, /* bitpos */ |
1288 | complain_overflow_dont,/* complain_on_overflow */ | |
1289 | bfd_elf_generic_reloc, /* special_function */ | |
1290 | "R_NDS32_PLT_GOTREL_HI20",/* name */ | |
0a1b45a2 | 1291 | false, /* partial_inplace */ |
fbaf61ad NC |
1292 | 0x000fffff, /* src_mask */ |
1293 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 1294 | false), /* pcrel_offset */ |
35c08157 KLC |
1295 | |
1296 | /* Low 12 bits of PLT symbol offset relative to GOT (GP). */ | |
fbaf61ad NC |
1297 | HOWTO2 (R_NDS32_PLT_GOTREL_LO12,/* type */ |
1298 | 0, /* rightshift */ | |
c94cb026 | 1299 | 4, /* size */ |
fbaf61ad | 1300 | 12, /* bitsize */ |
0a1b45a2 | 1301 | false, /* pc_relative */ |
fbaf61ad NC |
1302 | 0, /* bitpos */ |
1303 | complain_overflow_dont,/* complain_on_overflow */ | |
1304 | bfd_elf_generic_reloc, /* special_function */ | |
1305 | "R_NDS32_PLT_GOTREL_LO12",/* name */ | |
0a1b45a2 | 1306 | false, /* partial_inplace */ |
fbaf61ad NC |
1307 | 0x00000fff, /* src_mask */ |
1308 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 1309 | false), /* pcrel_offset */ |
35c08157 KLC |
1310 | |
1311 | /* Small data area 12 bits offset. */ | |
fbaf61ad NC |
1312 | HOWTO2 (R_NDS32_SDA12S2_DP_RELA,/* type */ |
1313 | 2, /* rightshift */ | |
c94cb026 | 1314 | 4, /* size */ |
fbaf61ad | 1315 | 12, /* bitsize */ |
0a1b45a2 | 1316 | false, /* pc_relative */ |
fbaf61ad NC |
1317 | 0, /* bitpos */ |
1318 | complain_overflow_signed,/* complain_on_overflow */ | |
1319 | bfd_elf_generic_reloc, /* special_function */ | |
1320 | "R_NDS32_SDA12S2_DP_RELA",/* name */ | |
0a1b45a2 | 1321 | false, /* partial_inplace */ |
fbaf61ad NC |
1322 | 0x00000fff, /* src_mask */ |
1323 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 1324 | false), /* pcrel_offset */ |
35c08157 KLC |
1325 | |
1326 | /* Small data area 12 bits offset. */ | |
fbaf61ad NC |
1327 | HOWTO2 (R_NDS32_SDA12S2_SP_RELA,/* type */ |
1328 | 2, /* rightshift */ | |
c94cb026 | 1329 | 4, /* size */ |
fbaf61ad | 1330 | 12, /* bitsize */ |
0a1b45a2 | 1331 | false, /* pc_relative */ |
fbaf61ad NC |
1332 | 0, /* bitpos */ |
1333 | complain_overflow_signed,/* complain_on_overflow */ | |
1334 | bfd_elf_generic_reloc, /* special_function */ | |
1335 | "R_NDS32_SDA12S2_SP_RELA",/* name */ | |
0a1b45a2 | 1336 | false, /* partial_inplace */ |
fbaf61ad NC |
1337 | 0x00000fff, /* src_mask */ |
1338 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 1339 | false), /* pcrel_offset */ |
35c08157 KLC |
1340 | /* Lower 12 bits of address. */ |
1341 | ||
fbaf61ad NC |
1342 | HOWTO2 (R_NDS32_LO12S2_DP_RELA, /* type */ |
1343 | 2, /* rightshift */ | |
c94cb026 | 1344 | 4, /* size */ |
fbaf61ad | 1345 | 10, /* bitsize */ |
0a1b45a2 | 1346 | false, /* pc_relative */ |
fbaf61ad NC |
1347 | 0, /* bitpos */ |
1348 | complain_overflow_dont,/* complain_on_overflow */ | |
1349 | bfd_elf_generic_reloc, /* special_function */ | |
1350 | "R_NDS32_LO12S2_DP_RELA",/* name */ | |
0a1b45a2 | 1351 | false, /* partial_inplace */ |
fbaf61ad NC |
1352 | 0x000003ff, /* src_mask */ |
1353 | 0x000003ff, /* dst_mask */ | |
0a1b45a2 | 1354 | false), /* pcrel_offset */ |
35c08157 KLC |
1355 | |
1356 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
1357 | HOWTO2 (R_NDS32_LO12S2_SP_RELA,/* type */ |
1358 | 2, /* rightshift */ | |
c94cb026 | 1359 | 4, /* size */ |
fbaf61ad | 1360 | 10, /* bitsize */ |
0a1b45a2 | 1361 | false, /* pc_relative */ |
fbaf61ad NC |
1362 | 0, /* bitpos */ |
1363 | complain_overflow_dont,/* complain_on_overflow */ | |
1364 | bfd_elf_generic_reloc, /* special_function */ | |
1365 | "R_NDS32_LO12S2_SP_RELA",/* name */ | |
0a1b45a2 | 1366 | false, /* partial_inplace */ |
fbaf61ad NC |
1367 | 0x000003ff, /* src_mask */ |
1368 | 0x000003ff, /* dst_mask */ | |
0a1b45a2 | 1369 | false), /* pcrel_offset */ |
c94cb026 | 1370 | |
35c08157 | 1371 | /* Lower 12 bits of address. Special identity for or case. */ |
fbaf61ad NC |
1372 | HOWTO2 (R_NDS32_LO12S0_ORI_RELA,/* type */ |
1373 | 0, /* rightshift */ | |
c94cb026 | 1374 | 4, /* size */ |
fbaf61ad | 1375 | 12, /* bitsize */ |
0a1b45a2 | 1376 | false, /* pc_relative */ |
fbaf61ad NC |
1377 | 0, /* bitpos */ |
1378 | complain_overflow_dont,/* complain_on_overflow */ | |
1379 | bfd_elf_generic_reloc, /* special_function */ | |
1380 | "R_NDS32_LO12S0_ORI_RELA",/* name */ | |
0a1b45a2 | 1381 | false, /* partial_inplace */ |
fbaf61ad NC |
1382 | 0x00000fff, /* src_mask */ |
1383 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 1384 | false), /* pcrel_offset */ |
c94cb026 | 1385 | |
35c08157 | 1386 | /* Small data area 19 bits offset. */ |
fbaf61ad NC |
1387 | HOWTO2 (R_NDS32_SDA16S3_RELA, /* type */ |
1388 | 3, /* rightshift */ | |
c94cb026 | 1389 | 4, /* size */ |
fbaf61ad | 1390 | 16, /* bitsize */ |
0a1b45a2 | 1391 | false, /* pc_relative */ |
fbaf61ad NC |
1392 | 0, /* bitpos */ |
1393 | complain_overflow_signed,/* complain_on_overflow */ | |
1394 | bfd_elf_generic_reloc, /* special_function */ | |
1395 | "R_NDS32_SDA16S3_RELA",/* name */ | |
0a1b45a2 | 1396 | false, /* partial_inplace */ |
fbaf61ad NC |
1397 | 0x0000ffff, /* src_mask */ |
1398 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 1399 | false), /* pcrel_offset */ |
35c08157 KLC |
1400 | |
1401 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
1402 | HOWTO2 (R_NDS32_SDA17S2_RELA, /* type */ |
1403 | 2, /* rightshift */ | |
c94cb026 | 1404 | 4, /* size */ |
fbaf61ad | 1405 | 17, /* bitsize */ |
0a1b45a2 | 1406 | false, /* pc_relative */ |
fbaf61ad NC |
1407 | 0, /* bitpos */ |
1408 | complain_overflow_signed,/* complain_on_overflow */ | |
1409 | bfd_elf_generic_reloc, /* special_function */ | |
1410 | "R_NDS32_SDA17S2_RELA",/* name */ | |
0a1b45a2 | 1411 | false, /* partial_inplace */ |
fbaf61ad NC |
1412 | 0x0001ffff, /* src_mask */ |
1413 | 0x0001ffff, /* dst_mask */ | |
0a1b45a2 | 1414 | false), /* pcrel_offset */ |
fbaf61ad NC |
1415 | |
1416 | HOWTO2 (R_NDS32_SDA18S1_RELA, /* type */ | |
1417 | 1, /* rightshift */ | |
c94cb026 | 1418 | 4, /* size */ |
fbaf61ad | 1419 | 18, /* bitsize */ |
0a1b45a2 | 1420 | false, /* pc_relative */ |
fbaf61ad NC |
1421 | 0, /* bitpos */ |
1422 | complain_overflow_signed,/* complain_on_overflow */ | |
1423 | bfd_elf_generic_reloc, /* special_function */ | |
1424 | "R_NDS32_SDA18S1_RELA",/* name */ | |
0a1b45a2 | 1425 | false, /* partial_inplace */ |
fbaf61ad NC |
1426 | 0x0003ffff, /* src_mask */ |
1427 | 0x0003ffff, /* dst_mask */ | |
0a1b45a2 | 1428 | false), /* pcrel_offset */ |
fbaf61ad NC |
1429 | |
1430 | HOWTO2 (R_NDS32_SDA19S0_RELA, /* type */ | |
1431 | 0, /* rightshift */ | |
c94cb026 | 1432 | 4, /* size */ |
fbaf61ad | 1433 | 19, /* bitsize */ |
0a1b45a2 | 1434 | false, /* pc_relative */ |
fbaf61ad NC |
1435 | 0, /* bitpos */ |
1436 | complain_overflow_signed,/* complain_on_overflow */ | |
1437 | bfd_elf_generic_reloc, /* special_function */ | |
1438 | "R_NDS32_SDA19S0_RELA",/* name */ | |
0a1b45a2 | 1439 | false, /* partial_inplace */ |
fbaf61ad NC |
1440 | 0x0007ffff, /* src_mask */ |
1441 | 0x0007ffff, /* dst_mask */ | |
0a1b45a2 | 1442 | false), /* pcrel_offset */ |
fbaf61ad NC |
1443 | HOWTO2 (R_NDS32_DWARF2_OP1_RELA,/* type */ |
1444 | 0, /* rightshift */ | |
c94cb026 | 1445 | 1, /* size */ |
fbaf61ad | 1446 | 8, /* bitsize */ |
0a1b45a2 | 1447 | false, /* pc_relative */ |
fbaf61ad NC |
1448 | 0, /* bitpos */ |
1449 | complain_overflow_dont,/* complain_on_overflow */ | |
1450 | nds32_elf_ignore_reloc,/* special_function */ | |
1451 | "R_NDS32_DWARF2_OP1_RELA",/* name */ | |
0a1b45a2 | 1452 | false, /* partial_inplace */ |
fbaf61ad NC |
1453 | 0xff, /* src_mask */ |
1454 | 0xff, /* dst_mask */ | |
0a1b45a2 | 1455 | false), /* pcrel_offset */ |
c94cb026 | 1456 | |
fbaf61ad NC |
1457 | HOWTO2 (R_NDS32_DWARF2_OP2_RELA,/* type */ |
1458 | 0, /* rightshift */ | |
c94cb026 | 1459 | 2, /* size */ |
fbaf61ad | 1460 | 16, /* bitsize */ |
0a1b45a2 | 1461 | false, /* pc_relative */ |
fbaf61ad NC |
1462 | 0, /* bitpos */ |
1463 | complain_overflow_dont,/* complain_on_overflow */ | |
1464 | nds32_elf_ignore_reloc,/* special_function */ | |
1465 | "R_NDS32_DWARF2_OP2_RELA",/* name */ | |
0a1b45a2 | 1466 | false, /* partial_inplace */ |
fbaf61ad NC |
1467 | 0xffff, /* src_mask */ |
1468 | 0xffff, /* dst_mask */ | |
0a1b45a2 | 1469 | false), /* pcrel_offset */ |
c94cb026 | 1470 | |
fbaf61ad NC |
1471 | HOWTO2 (R_NDS32_DWARF2_LEB_RELA,/* type */ |
1472 | 0, /* rightshift */ | |
c94cb026 | 1473 | 4, /* size */ |
fbaf61ad | 1474 | 32, /* bitsize */ |
0a1b45a2 | 1475 | false, /* pc_relative */ |
fbaf61ad NC |
1476 | 0, /* bitpos */ |
1477 | complain_overflow_dont,/* complain_on_overflow */ | |
1478 | nds32_elf_ignore_reloc,/* special_function */ | |
1479 | "R_NDS32_DWARF2_LEB_RELA",/* name */ | |
0a1b45a2 | 1480 | false, /* partial_inplace */ |
fbaf61ad NC |
1481 | 0xffffffff, /* src_mask */ |
1482 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1483 | false), /* pcrel_offset */ |
c94cb026 | 1484 | |
fbaf61ad NC |
1485 | HOWTO2 (R_NDS32_UPDATE_TA_RELA,/* type */ |
1486 | 0, /* rightshift */ | |
c94cb026 | 1487 | 2, /* size */ |
fbaf61ad | 1488 | 16, /* bitsize */ |
0a1b45a2 | 1489 | false, /* pc_relative */ |
fbaf61ad NC |
1490 | 0, /* bitpos */ |
1491 | complain_overflow_dont,/* complain_on_overflow */ | |
1492 | nds32_elf_ignore_reloc,/* special_function */ | |
1493 | "R_NDS32_UPDATE_TA_RELA",/* name */ | |
0a1b45a2 | 1494 | false, /* partial_inplace */ |
fbaf61ad NC |
1495 | 0xffff, /* src_mask */ |
1496 | 0xffff, /* dst_mask */ | |
0a1b45a2 | 1497 | false), /* pcrel_offset */ |
c94cb026 | 1498 | |
35c08157 KLC |
1499 | /* Like R_NDS32_PCREL, but referring to the procedure linkage table |
1500 | entry for the symbol. */ | |
fbaf61ad NC |
1501 | HOWTO2 (R_NDS32_9_PLTREL, /* type */ |
1502 | 1, /* rightshift */ | |
c94cb026 | 1503 | 2, /* size */ |
fbaf61ad | 1504 | 8, /* bitsize */ |
0a1b45a2 | 1505 | true, /* pc_relative */ |
fbaf61ad NC |
1506 | 0, /* bitpos */ |
1507 | complain_overflow_signed,/* complain_on_overflow */ | |
1508 | bfd_elf_generic_reloc, /* special_function */ | |
1509 | "R_NDS32_9_PLTREL", /* name */ | |
0a1b45a2 | 1510 | false, /* partial_inplace */ |
fbaf61ad NC |
1511 | 0xff, /* src_mask */ |
1512 | 0xff, /* dst_mask */ | |
0a1b45a2 | 1513 | true), /* pcrel_offset */ |
c94cb026 | 1514 | |
35c08157 | 1515 | /* Low 20 bits of PLT symbol offset relative to GOT (GP). */ |
fbaf61ad NC |
1516 | HOWTO2 (R_NDS32_PLT_GOTREL_LO20,/* type */ |
1517 | 0, /* rightshift */ | |
c94cb026 | 1518 | 4, /* size */ |
fbaf61ad | 1519 | 20, /* bitsize */ |
0a1b45a2 | 1520 | false, /* pc_relative */ |
fbaf61ad NC |
1521 | 0, /* bitpos */ |
1522 | complain_overflow_dont,/* complain_on_overflow */ | |
1523 | bfd_elf_generic_reloc, /* special_function */ | |
1524 | "R_NDS32_PLT_GOTREL_LO20",/* name */ | |
0a1b45a2 | 1525 | false, /* partial_inplace */ |
fbaf61ad NC |
1526 | 0x000fffff, /* src_mask */ |
1527 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 1528 | false), /* pcrel_offset */ |
c94cb026 | 1529 | |
fbaf61ad NC |
1530 | /* low 15 bits of PLT symbol offset relative to GOT (GP) */ |
1531 | HOWTO2 (R_NDS32_PLT_GOTREL_LO15,/* type */ | |
1532 | 0, /* rightshift */ | |
c94cb026 | 1533 | 4, /* size */ |
fbaf61ad | 1534 | 15, /* bitsize */ |
0a1b45a2 | 1535 | false, /* pc_relative */ |
fbaf61ad NC |
1536 | 0, /* bitpos */ |
1537 | complain_overflow_dont,/* complain_on_overflow */ | |
1538 | bfd_elf_generic_reloc, /* special_function */ | |
1539 | "R_NDS32_PLT_GOTREL_LO15",/* name */ | |
0a1b45a2 | 1540 | false, /* partial_inplace */ |
fbaf61ad NC |
1541 | 0x00007fff, /* src_mask */ |
1542 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 1543 | false), /* pcrel_offset */ |
c94cb026 | 1544 | |
35c08157 | 1545 | /* Low 19 bits of PLT symbol offset relative to GOT (GP). */ |
fbaf61ad NC |
1546 | HOWTO2 (R_NDS32_PLT_GOTREL_LO19,/* type */ |
1547 | 0, /* rightshift */ | |
c94cb026 | 1548 | 4, /* size */ |
fbaf61ad | 1549 | 19, /* bitsize */ |
0a1b45a2 | 1550 | false, /* pc_relative */ |
fbaf61ad NC |
1551 | 0, /* bitpos */ |
1552 | complain_overflow_dont,/* complain_on_overflow */ | |
1553 | bfd_elf_generic_reloc, /* special_function */ | |
1554 | "R_NDS32_PLT_GOTREL_LO19",/* name */ | |
0a1b45a2 | 1555 | false, /* partial_inplace */ |
fbaf61ad NC |
1556 | 0x0007ffff, /* src_mask */ |
1557 | 0x0007ffff, /* dst_mask */ | |
0a1b45a2 | 1558 | false), /* pcrel_offset */ |
c94cb026 | 1559 | |
fbaf61ad NC |
1560 | HOWTO2 (R_NDS32_GOT_LO15, /* type */ |
1561 | 0, /* rightshift */ | |
c94cb026 | 1562 | 4, /* size */ |
fbaf61ad | 1563 | 15, /* bitsize */ |
0a1b45a2 | 1564 | false, /* pc_relative */ |
fbaf61ad NC |
1565 | 0, /* bitpos */ |
1566 | complain_overflow_dont,/* complain_on_overflow */ | |
1567 | bfd_elf_generic_reloc, /* special_function */ | |
1568 | "R_NDS32_GOT_LO15", /* name */ | |
0a1b45a2 | 1569 | false, /* partial_inplace */ |
fbaf61ad NC |
1570 | 0x00007fff, /* src_mask */ |
1571 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 1572 | false), /* pcrel_offset */ |
c94cb026 | 1573 | |
fbaf61ad NC |
1574 | HOWTO2 (R_NDS32_GOT_LO19, /* type */ |
1575 | 0, /* rightshift */ | |
c94cb026 | 1576 | 4, /* size */ |
fbaf61ad | 1577 | 19, /* bitsize */ |
0a1b45a2 | 1578 | false, /* pc_relative */ |
fbaf61ad NC |
1579 | 0, /* bitpos */ |
1580 | complain_overflow_dont,/* complain_on_overflow */ | |
1581 | bfd_elf_generic_reloc, /* special_function */ | |
1582 | "R_NDS32_GOT_LO19", /* name */ | |
0a1b45a2 | 1583 | false, /* partial_inplace */ |
fbaf61ad NC |
1584 | 0x0007ffff, /* src_mask */ |
1585 | 0x0007ffff, /* dst_mask */ | |
0a1b45a2 | 1586 | false), /* pcrel_offset */ |
c94cb026 | 1587 | |
fbaf61ad NC |
1588 | HOWTO2 (R_NDS32_GOTOFF_LO15, /* type */ |
1589 | 0, /* rightshift */ | |
c94cb026 | 1590 | 4, /* size */ |
fbaf61ad | 1591 | 15, /* bitsize */ |
0a1b45a2 | 1592 | false, /* pc_relative */ |
fbaf61ad NC |
1593 | 0, /* bitpos */ |
1594 | complain_overflow_dont,/* complain_on_overflow */ | |
1595 | bfd_elf_generic_reloc, /* special_function */ | |
1596 | "R_NDS32_GOTOFF_LO15", /* name */ | |
0a1b45a2 | 1597 | false, /* partial_inplace */ |
fbaf61ad NC |
1598 | 0x00007fff, /* src_mask */ |
1599 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 1600 | false), /* pcrel_offset */ |
c94cb026 | 1601 | |
fbaf61ad NC |
1602 | HOWTO2 (R_NDS32_GOTOFF_LO19, /* type */ |
1603 | 0, /* rightshift */ | |
c94cb026 | 1604 | 4, /* size */ |
fbaf61ad | 1605 | 19, /* bitsize */ |
0a1b45a2 | 1606 | false, /* pc_relative */ |
fbaf61ad NC |
1607 | 0, /* bitpos */ |
1608 | complain_overflow_dont,/* complain_on_overflow */ | |
1609 | bfd_elf_generic_reloc, /* special_function */ | |
1610 | "R_NDS32_GOTOFF_LO19", /* name */ | |
0a1b45a2 | 1611 | false, /* partial_inplace */ |
fbaf61ad NC |
1612 | 0x0007ffff, /* src_mask */ |
1613 | 0x0007ffff, /* dst_mask */ | |
0a1b45a2 | 1614 | false), /* pcrel_offset */ |
c94cb026 | 1615 | |
35c08157 | 1616 | /* GOT 15 bits offset. */ |
fbaf61ad NC |
1617 | HOWTO2 (R_NDS32_GOT15S2_RELA, /* type */ |
1618 | 2, /* rightshift */ | |
c94cb026 | 1619 | 4, /* size */ |
fbaf61ad | 1620 | 15, /* bitsize */ |
0a1b45a2 | 1621 | false, /* pc_relative */ |
fbaf61ad NC |
1622 | 0, /* bitpos */ |
1623 | complain_overflow_signed,/* complain_on_overflow */ | |
1624 | bfd_elf_generic_reloc, /* special_function */ | |
1625 | "R_NDS32_GOT15S2_RELA",/* name */ | |
0a1b45a2 | 1626 | false, /* partial_inplace */ |
fbaf61ad NC |
1627 | 0x00007fff, /* src_mask */ |
1628 | 0x00007fff, /* dst_mask */ | |
0a1b45a2 | 1629 | false), /* pcrel_offset */ |
c94cb026 | 1630 | |
35c08157 | 1631 | /* GOT 17 bits offset. */ |
fbaf61ad NC |
1632 | HOWTO2 (R_NDS32_GOT17S2_RELA, /* type */ |
1633 | 2, /* rightshift */ | |
c94cb026 | 1634 | 4, /* size */ |
fbaf61ad | 1635 | 17, /* bitsize */ |
0a1b45a2 | 1636 | false, /* pc_relative */ |
fbaf61ad NC |
1637 | 0, /* bitpos */ |
1638 | complain_overflow_signed,/* complain_on_overflow */ | |
1639 | bfd_elf_generic_reloc, /* special_function */ | |
1640 | "R_NDS32_GOT17S2_RELA",/* name */ | |
0a1b45a2 | 1641 | false, /* partial_inplace */ |
fbaf61ad NC |
1642 | 0x0001ffff, /* src_mask */ |
1643 | 0x0001ffff, /* dst_mask */ | |
0a1b45a2 | 1644 | false), /* pcrel_offset */ |
c94cb026 | 1645 | |
35c08157 | 1646 | /* A 5 bit address. */ |
fbaf61ad NC |
1647 | HOWTO2 (R_NDS32_5_RELA, /* type */ |
1648 | 0, /* rightshift */ | |
c94cb026 | 1649 | 2, /* size */ |
fbaf61ad | 1650 | 5, /* bitsize */ |
0a1b45a2 | 1651 | false, /* pc_relative */ |
fbaf61ad NC |
1652 | 0, /* bitpos */ |
1653 | complain_overflow_signed,/* complain_on_overflow */ | |
1654 | bfd_elf_generic_reloc, /* special_function */ | |
1655 | "R_NDS32_5_RELA", /* name */ | |
0a1b45a2 | 1656 | false, /* partial_inplace */ |
fbaf61ad NC |
1657 | 0x1f, /* src_mask */ |
1658 | 0x1f, /* dst_mask */ | |
0a1b45a2 | 1659 | false), /* pcrel_offset */ |
c94cb026 | 1660 | |
fbaf61ad NC |
1661 | HOWTO2 (R_NDS32_10_UPCREL_RELA,/* type */ |
1662 | 1, /* rightshift */ | |
c94cb026 | 1663 | 2, /* size */ |
fbaf61ad | 1664 | 9, /* bitsize */ |
0a1b45a2 | 1665 | true, /* pc_relative */ |
fbaf61ad NC |
1666 | 0, /* bitpos */ |
1667 | complain_overflow_unsigned,/* complain_on_overflow */ | |
1668 | bfd_elf_generic_reloc, /* special_function */ | |
1669 | "R_NDS32_10_UPCREL_RELA",/* name */ | |
0a1b45a2 | 1670 | false, /* partial_inplace */ |
fbaf61ad NC |
1671 | 0x1ff, /* src_mask */ |
1672 | 0x1ff, /* dst_mask */ | |
0a1b45a2 | 1673 | true), /* pcrel_offset */ |
c94cb026 | 1674 | |
fbaf61ad NC |
1675 | HOWTO2 (R_NDS32_SDA_FP7U2_RELA,/* type */ |
1676 | 2, /* rightshift */ | |
c94cb026 | 1677 | 2, /* size */ |
fbaf61ad | 1678 | 7, /* bitsize */ |
0a1b45a2 | 1679 | false, /* pc_relative */ |
fbaf61ad NC |
1680 | 0, /* bitpos */ |
1681 | complain_overflow_unsigned,/* complain_on_overflow */ | |
1682 | bfd_elf_generic_reloc, /* special_function */ | |
1683 | "R_NDS32_SDA_FP7U2_RELA",/* name */ | |
0a1b45a2 | 1684 | false, /* partial_inplace */ |
fbaf61ad NC |
1685 | 0x0000007f, /* src_mask */ |
1686 | 0x0000007f, /* dst_mask */ | |
0a1b45a2 | 1687 | false), /* pcrel_offset */ |
c94cb026 | 1688 | |
fbaf61ad NC |
1689 | HOWTO2 (R_NDS32_WORD_9_PCREL_RELA,/* type */ |
1690 | 1, /* rightshift */ | |
c94cb026 | 1691 | 4, /* size */ |
fbaf61ad | 1692 | 8, /* bitsize */ |
0a1b45a2 | 1693 | true, /* pc_relative */ |
fbaf61ad NC |
1694 | 0, /* bitpos */ |
1695 | complain_overflow_signed,/* complain_on_overflow */ | |
1696 | bfd_elf_generic_reloc, /* special_function */ | |
1697 | "R_NDS32_WORD_9_PCREL_RELA",/* name */ | |
0a1b45a2 | 1698 | false, /* partial_inplace */ |
fbaf61ad NC |
1699 | 0xff, /* src_mask */ |
1700 | 0xff, /* dst_mask */ | |
0a1b45a2 | 1701 | true), /* pcrel_offset */ |
c94cb026 | 1702 | |
fbaf61ad NC |
1703 | HOWTO2 (R_NDS32_25_ABS_RELA, /* type */ |
1704 | 1, /* rightshift */ | |
c94cb026 | 1705 | 4, /* size */ |
fbaf61ad | 1706 | 24, /* bitsize */ |
0a1b45a2 | 1707 | false, /* pc_relative */ |
fbaf61ad NC |
1708 | 0, /* bitpos */ |
1709 | complain_overflow_dont,/* complain_on_overflow */ | |
1710 | bfd_elf_generic_reloc, /* special_function */ | |
1711 | "R_NDS32_25_ABS_RELA", /* name */ | |
0a1b45a2 | 1712 | false, /* partial_inplace */ |
fbaf61ad NC |
1713 | 0xffffff, /* src_mask */ |
1714 | 0xffffff, /* dst_mask */ | |
0a1b45a2 | 1715 | false), /* pcrel_offset */ |
35c08157 KLC |
1716 | |
1717 | /* A relative 17 bit relocation for ifc, right shifted by 1. */ | |
fbaf61ad NC |
1718 | HOWTO2 (R_NDS32_17IFC_PCREL_RELA,/* type */ |
1719 | 1, /* rightshift */ | |
c94cb026 | 1720 | 4, /* size */ |
fbaf61ad | 1721 | 16, /* bitsize */ |
0a1b45a2 | 1722 | true, /* pc_relative */ |
fbaf61ad NC |
1723 | 0, /* bitpos */ |
1724 | complain_overflow_signed,/* complain_on_overflow */ | |
1725 | bfd_elf_generic_reloc, /* special_function */ | |
1726 | "R_NDS32_17IFC_PCREL_RELA",/* name */ | |
0a1b45a2 | 1727 | false, /* partial_inplace */ |
fbaf61ad NC |
1728 | 0xffff, /* src_mask */ |
1729 | 0xffff, /* dst_mask */ | |
0a1b45a2 | 1730 | true), /* pcrel_offset */ |
35c08157 KLC |
1731 | |
1732 | /* A relative unsigned 10 bit relocation for ifc, right shifted by 1. */ | |
fbaf61ad NC |
1733 | HOWTO2 (R_NDS32_10IFCU_PCREL_RELA,/* type */ |
1734 | 1, /* rightshift */ | |
c94cb026 | 1735 | 2, /* size */ |
fbaf61ad | 1736 | 9, /* bitsize */ |
0a1b45a2 | 1737 | true, /* pc_relative */ |
fbaf61ad NC |
1738 | 0, /* bitpos */ |
1739 | complain_overflow_unsigned,/* complain_on_overflow */ | |
1740 | bfd_elf_generic_reloc, /* special_function */ | |
1741 | "R_NDS32_10IFCU_PCREL_RELA",/* name */ | |
0a1b45a2 | 1742 | false, /* partial_inplace */ |
fbaf61ad NC |
1743 | 0x1ff, /* src_mask */ |
1744 | 0x1ff, /* dst_mask */ | |
0a1b45a2 | 1745 | true), /* pcrel_offset */ |
fbaf61ad NC |
1746 | |
1747 | /* Like R_NDS32_HI20, but referring to the TLS LE entry for the symbol. */ | |
1748 | HOWTO2 (R_NDS32_TLS_LE_HI20, /* type */ | |
1749 | 12, /* rightshift */ | |
c94cb026 | 1750 | 4, /* size */ |
fbaf61ad | 1751 | 20, /* bitsize */ |
0a1b45a2 | 1752 | false, /* pc_relative */ |
fbaf61ad NC |
1753 | 0, /* bitpos */ |
1754 | complain_overflow_dont,/* complain_on_overflow */ | |
1755 | bfd_elf_generic_reloc, /* special_function */ | |
1756 | "R_NDS32_TLS_LE_HI20", /* name */ | |
0a1b45a2 | 1757 | false, /* partial_inplace */ |
fbaf61ad NC |
1758 | 0x000fffff, /* src_mask */ |
1759 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 1760 | false), /* pcrel_offset */ |
fbaf61ad NC |
1761 | |
1762 | HOWTO2 (R_NDS32_TLS_LE_LO12, /* type */ | |
1763 | 0, /* rightshift */ | |
c94cb026 | 1764 | 4, /* size */ |
fbaf61ad | 1765 | 12, /* bitsize */ |
0a1b45a2 | 1766 | false, /* pc_relative */ |
fbaf61ad NC |
1767 | 0, /* bitpos */ |
1768 | complain_overflow_dont,/* complain_on_overflow */ | |
1769 | bfd_elf_generic_reloc, /* special_function */ | |
1770 | "R_NDS32_TLS_LE_LO12", /* name */ | |
0a1b45a2 | 1771 | false, /* partial_inplace */ |
fbaf61ad NC |
1772 | 0x00000fff, /* src_mask */ |
1773 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 1774 | false), /* pcrel_offset */ |
fbaf61ad NC |
1775 | |
1776 | /* Like R_NDS32_HI20, but referring to the TLS IE entry for the symbol. */ | |
1777 | HOWTO2 (R_NDS32_TLS_IE_HI20, /* type */ | |
1778 | 12, /* rightshift */ | |
c94cb026 | 1779 | 4, /* size */ |
fbaf61ad | 1780 | 20, /* bitsize */ |
0a1b45a2 | 1781 | false, /* pc_relative */ |
fbaf61ad NC |
1782 | 0, /* bitpos */ |
1783 | complain_overflow_dont,/* complain_on_overflow */ | |
1784 | bfd_elf_generic_reloc, /* special_function */ | |
1785 | "R_NDS32_TLS_IE_HI20", /* name */ | |
0a1b45a2 | 1786 | false, /* partial_inplace */ |
fbaf61ad NC |
1787 | 0x000fffff, /* src_mask */ |
1788 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 1789 | false), /* pcrel_offset */ |
fbaf61ad NC |
1790 | |
1791 | HOWTO2 (R_NDS32_TLS_IE_LO12S2,/* type */ | |
1792 | 2, /* rightshift */ | |
c94cb026 | 1793 | 4, /* size */ |
fbaf61ad | 1794 | 10, /* bitsize */ |
0a1b45a2 | 1795 | false, /* pc_relative */ |
fbaf61ad NC |
1796 | 0, /* bitpos */ |
1797 | complain_overflow_dont,/* complain_on_overflow */ | |
1798 | bfd_elf_generic_reloc, /* special_function */ | |
1799 | "R_NDS32_TLS_IE_LO12S2",/* name */ | |
0a1b45a2 | 1800 | false, /* partial_inplace */ |
fbaf61ad NC |
1801 | 0x000003ff, /* src_mask */ |
1802 | 0x000003ff, /* dst_mask */ | |
0a1b45a2 | 1803 | false), /* pcrel_offset */ |
fbaf61ad NC |
1804 | |
1805 | /* TLS LE TP offset relocation */ | |
1806 | HOWTO2 (R_NDS32_TLS_TPOFF, /* type */ | |
1807 | 0, /* rightshift */ | |
c94cb026 | 1808 | 4, /* size */ |
fbaf61ad | 1809 | 32, /* bitsize */ |
0a1b45a2 | 1810 | false, /* pc_relative */ |
fbaf61ad NC |
1811 | 0, /* bitpos */ |
1812 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1813 | bfd_elf_generic_reloc, /* special_function */ | |
1814 | "R_NDS32_TLS_TPOFF", /* name */ | |
0a1b45a2 | 1815 | false, /* partial_inplace */ |
fbaf61ad NC |
1816 | 0xffffffff, /* src_mask */ |
1817 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1818 | false), /* pcrel_offset */ |
fbaf61ad | 1819 | |
1c8f6a4d | 1820 | /* A 20 bit address. */ |
fbaf61ad NC |
1821 | HOWTO2 (R_NDS32_TLS_LE_20, /* type */ |
1822 | 0, /* rightshift */ | |
c94cb026 | 1823 | 4, /* size */ |
fbaf61ad | 1824 | 20, /* bitsize */ |
0a1b45a2 | 1825 | false, /* pc_relative */ |
fbaf61ad NC |
1826 | 0, /* bitpos */ |
1827 | complain_overflow_signed,/* complain_on_overflow */ | |
1828 | bfd_elf_generic_reloc, /* special_function */ | |
1829 | "R_NDS32_TLS_LE_20", /* name */ | |
0a1b45a2 | 1830 | false, /* partial_inplace */ |
fbaf61ad NC |
1831 | 0xfffff, /* src_mask */ |
1832 | 0xfffff, /* dst_mask */ | |
0a1b45a2 | 1833 | false), /* pcrel_offset */ |
fbaf61ad NC |
1834 | |
1835 | HOWTO2 (R_NDS32_TLS_LE_15S0, /* type */ | |
1836 | 0, /* rightshift */ | |
c94cb026 | 1837 | 4, /* size */ |
fbaf61ad | 1838 | 15, /* bitsize */ |
0a1b45a2 | 1839 | false, /* pc_relative */ |
fbaf61ad NC |
1840 | 0, /* bitpos */ |
1841 | complain_overflow_signed,/* complain_on_overflow */ | |
1842 | bfd_elf_generic_reloc, /* special_function */ | |
1843 | "R_NDS32_TLS_LE_15S0", /* name */ | |
0a1b45a2 | 1844 | false, /* partial_inplace */ |
fbaf61ad NC |
1845 | 0x7fff, /* src_mask */ |
1846 | 0x7fff, /* dst_mask */ | |
0a1b45a2 | 1847 | false), /* pcrel_offset */ |
c94cb026 | 1848 | |
fbaf61ad NC |
1849 | HOWTO2 (R_NDS32_TLS_LE_15S1, /* type */ |
1850 | 1, /* rightshift */ | |
c94cb026 | 1851 | 4, /* size */ |
fbaf61ad | 1852 | 15, /* bitsize */ |
0a1b45a2 | 1853 | false, /* pc_relative */ |
fbaf61ad NC |
1854 | 0, /* bitpos */ |
1855 | complain_overflow_signed,/* complain_on_overflow */ | |
1856 | bfd_elf_generic_reloc, /* special_function */ | |
1857 | "R_NDS32_TLS_LE_15S1", /* name */ | |
0a1b45a2 | 1858 | false, /* partial_inplace */ |
fbaf61ad NC |
1859 | 0x7fff, /* src_mask */ |
1860 | 0x7fff, /* dst_mask */ | |
0a1b45a2 | 1861 | false), /* pcrel_offset */ |
c94cb026 | 1862 | |
fbaf61ad NC |
1863 | HOWTO2 (R_NDS32_TLS_LE_15S2, /* type */ |
1864 | 2, /* rightshift */ | |
c94cb026 | 1865 | 4, /* size */ |
fbaf61ad | 1866 | 15, /* bitsize */ |
0a1b45a2 | 1867 | false, /* pc_relative */ |
fbaf61ad NC |
1868 | 0, /* bitpos */ |
1869 | complain_overflow_signed,/* complain_on_overflow */ | |
1870 | bfd_elf_generic_reloc, /* special_function */ | |
1871 | "R_NDS32_TLS_LE_15S2", /* name */ | |
0a1b45a2 | 1872 | false, /* partial_inplace */ |
fbaf61ad NC |
1873 | 0x7fff, /* src_mask */ |
1874 | 0x7fff, /* dst_mask */ | |
0a1b45a2 | 1875 | false), /* pcrel_offset */ |
1c8f6a4d KLC |
1876 | |
1877 | /* Relax hint for unconditional call sequence */ | |
fbaf61ad NC |
1878 | HOWTO2 (R_NDS32_LONGCALL4, /* type */ |
1879 | 0, /* rightshift */ | |
c94cb026 | 1880 | 4, /* size */ |
fbaf61ad | 1881 | 32, /* bitsize */ |
0a1b45a2 | 1882 | false, /* pc_relative */ |
fbaf61ad NC |
1883 | 0, /* bitpos */ |
1884 | complain_overflow_dont,/* complain_on_overflow */ | |
1885 | nds32_elf_ignore_reloc,/* special_function */ | |
1886 | "R_NDS32_LONGCALL4", /* name */ | |
0a1b45a2 | 1887 | false, /* partial_inplace */ |
fbaf61ad NC |
1888 | 0xffffffff, /* src_mask */ |
1889 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1890 | false), /* pcrel_offset */ |
1c8f6a4d KLC |
1891 | |
1892 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1893 | HOWTO2 (R_NDS32_LONGCALL5, /* type */ |
1894 | 0, /* rightshift */ | |
c94cb026 | 1895 | 4, /* size */ |
fbaf61ad | 1896 | 32, /* bitsize */ |
0a1b45a2 | 1897 | false, /* pc_relative */ |
fbaf61ad NC |
1898 | 0, /* bitpos */ |
1899 | complain_overflow_dont,/* complain_on_overflow */ | |
1900 | nds32_elf_ignore_reloc,/* special_function */ | |
1901 | "R_NDS32_LONGCALL5", /* name */ | |
0a1b45a2 | 1902 | false, /* partial_inplace */ |
fbaf61ad NC |
1903 | 0xffffffff, /* src_mask */ |
1904 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1905 | false), /* pcrel_offset */ |
1c8f6a4d KLC |
1906 | |
1907 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1908 | HOWTO2 (R_NDS32_LONGCALL6, /* type */ |
1909 | 0, /* rightshift */ | |
c94cb026 | 1910 | 4, /* size */ |
fbaf61ad | 1911 | 32, /* bitsize */ |
0a1b45a2 | 1912 | false, /* pc_relative */ |
fbaf61ad NC |
1913 | 0, /* bitpos */ |
1914 | complain_overflow_dont,/* complain_on_overflow */ | |
1915 | nds32_elf_ignore_reloc,/* special_function */ | |
1916 | "R_NDS32_LONGCALL6", /* name */ | |
0a1b45a2 | 1917 | false, /* partial_inplace */ |
fbaf61ad NC |
1918 | 0xffffffff, /* src_mask */ |
1919 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1920 | false), /* pcrel_offset */ |
1c8f6a4d KLC |
1921 | |
1922 | /* Relax hint for unconditional branch sequence. */ | |
fbaf61ad NC |
1923 | HOWTO2 (R_NDS32_LONGJUMP4, /* type */ |
1924 | 0, /* rightshift */ | |
c94cb026 | 1925 | 4, /* size */ |
fbaf61ad | 1926 | 32, /* bitsize */ |
0a1b45a2 | 1927 | false, /* pc_relative */ |
fbaf61ad NC |
1928 | 0, /* bitpos */ |
1929 | complain_overflow_dont,/* complain_on_overflow */ | |
1930 | nds32_elf_ignore_reloc,/* special_function */ | |
1931 | "R_NDS32_LONGJUMP4", /* name */ | |
0a1b45a2 | 1932 | false, /* partial_inplace */ |
fbaf61ad NC |
1933 | 0xffffffff, /* src_mask */ |
1934 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1935 | false), /* pcrel_offset */ |
1c8f6a4d KLC |
1936 | |
1937 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1938 | HOWTO2 (R_NDS32_LONGJUMP5, /* type */ |
1939 | 0, /* rightshift */ | |
c94cb026 | 1940 | 4, /* size */ |
fbaf61ad | 1941 | 32, /* bitsize */ |
0a1b45a2 | 1942 | false, /* pc_relative */ |
fbaf61ad NC |
1943 | 0, /* bitpos */ |
1944 | complain_overflow_dont,/* complain_on_overflow */ | |
1945 | nds32_elf_ignore_reloc,/* special_function */ | |
1946 | "R_NDS32_LONGJUMP5", /* name */ | |
0a1b45a2 | 1947 | false, /* partial_inplace */ |
fbaf61ad NC |
1948 | 0xffffffff, /* src_mask */ |
1949 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1950 | false), /* pcrel_offset */ |
1c8f6a4d KLC |
1951 | |
1952 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1953 | HOWTO2 (R_NDS32_LONGJUMP6, /* type */ |
1954 | 0, /* rightshift */ | |
c94cb026 | 1955 | 4, /* size */ |
fbaf61ad | 1956 | 32, /* bitsize */ |
0a1b45a2 | 1957 | false, /* pc_relative */ |
fbaf61ad NC |
1958 | 0, /* bitpos */ |
1959 | complain_overflow_dont,/* complain_on_overflow */ | |
1960 | nds32_elf_ignore_reloc,/* special_function */ | |
1961 | "R_NDS32_LONGJUMP6", /* name */ | |
0a1b45a2 | 1962 | false, /* partial_inplace */ |
fbaf61ad NC |
1963 | 0xffffffff, /* src_mask */ |
1964 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1965 | false), /* pcrel_offset */ |
1c8f6a4d KLC |
1966 | |
1967 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1968 | HOWTO2 (R_NDS32_LONGJUMP7, /* type */ |
1969 | 0, /* rightshift */ | |
c94cb026 | 1970 | 4, /* size */ |
fbaf61ad | 1971 | 32, /* bitsize */ |
0a1b45a2 | 1972 | false, /* pc_relative */ |
fbaf61ad NC |
1973 | 0, /* bitpos */ |
1974 | complain_overflow_dont,/* complain_on_overflow */ | |
1975 | nds32_elf_ignore_reloc,/* special_function */ | |
1976 | "R_NDS32_LONGJUMP7", /* name */ | |
0a1b45a2 | 1977 | false, /* partial_inplace */ |
fbaf61ad NC |
1978 | 0xffffffff, /* src_mask */ |
1979 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 1980 | false), /* pcrel_offset */ |
fbaf61ad | 1981 | |
a379e758 AM |
1982 | EMPTY_HOWTO (114), |
1983 | ||
fbaf61ad NC |
1984 | HOWTO2 (R_NDS32_TLS_IE_LO12, /* type */ |
1985 | 0, /* rightshift */ | |
c94cb026 | 1986 | 4, /* size */ |
fbaf61ad | 1987 | 12, /* bitsize */ |
0a1b45a2 | 1988 | false, /* pc_relative */ |
fbaf61ad NC |
1989 | 0, /* bitpos */ |
1990 | complain_overflow_dont,/* complain_on_overflow */ | |
1991 | bfd_elf_generic_reloc, /* special_function */ | |
1992 | "R_NDS32_TLS_IE_LO12", /* name */ | |
0a1b45a2 | 1993 | false, /* partial_inplace */ |
fbaf61ad NC |
1994 | 0x00000fff, /* src_mask */ |
1995 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 1996 | false), /* pcrel_offset */ |
fbaf61ad NC |
1997 | |
1998 | /* Like R_NDS32_HI20, but referring to the TLS IE (PIE) | |
1999 | entry for the symbol. */ | |
2000 | HOWTO2 (R_NDS32_TLS_IEGP_HI20,/* type */ | |
2001 | 12, /* rightshift */ | |
c94cb026 | 2002 | 4, /* size */ |
fbaf61ad | 2003 | 20, /* bitsize */ |
0a1b45a2 | 2004 | false, /* pc_relative */ |
fbaf61ad NC |
2005 | 0, /* bitpos */ |
2006 | complain_overflow_dont,/* complain_on_overflow */ | |
2007 | bfd_elf_generic_reloc, /* special_function */ | |
2008 | "R_NDS32_TLS_IEGP_HI20",/* name */ | |
0a1b45a2 | 2009 | false, /* partial_inplace */ |
fbaf61ad NC |
2010 | 0x000fffff, /* src_mask */ |
2011 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 2012 | false), /* pcrel_offset */ |
fbaf61ad NC |
2013 | |
2014 | HOWTO2 (R_NDS32_TLS_IEGP_LO12,/* type */ | |
2015 | 0, /* rightshift */ | |
c94cb026 | 2016 | 4, /* size */ |
fbaf61ad | 2017 | 12, /* bitsize */ |
0a1b45a2 | 2018 | false, /* pc_relative */ |
fbaf61ad NC |
2019 | 0, /* bitpos */ |
2020 | complain_overflow_dont,/* complain_on_overflow */ | |
2021 | bfd_elf_generic_reloc, /* special_function */ | |
2022 | "R_NDS32_TLS_IEGP_LO12",/* name */ | |
0a1b45a2 | 2023 | false, /* partial_inplace */ |
fbaf61ad NC |
2024 | 0x00000fff, /* src_mask */ |
2025 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 2026 | false), /* pcrel_offset */ |
fbaf61ad NC |
2027 | |
2028 | HOWTO2 (R_NDS32_TLS_IEGP_LO12S2,/* type */ | |
2029 | 2, /* rightshift */ | |
c94cb026 | 2030 | 4, /* size */ |
fbaf61ad | 2031 | 10, /* bitsize */ |
0a1b45a2 | 2032 | false, /* pc_relative */ |
fbaf61ad NC |
2033 | 0, /* bitpos */ |
2034 | complain_overflow_dont,/* complain_on_overflow */ | |
2035 | bfd_elf_generic_reloc, /* special_function */ | |
2036 | "R_NDS32_TLS_IEGP_LO12S2",/* name */ | |
0a1b45a2 | 2037 | false, /* partial_inplace */ |
fbaf61ad NC |
2038 | 0x000003ff, /* src_mask */ |
2039 | 0x000003ff, /* dst_mask */ | |
0a1b45a2 | 2040 | false), /* pcrel_offset */ |
fbaf61ad NC |
2041 | |
2042 | /* TLS description relocation */ | |
2043 | HOWTO2 (R_NDS32_TLS_DESC, /* type */ | |
2044 | 12, /* rightshift */ | |
c94cb026 | 2045 | 4, /* size */ |
fbaf61ad | 2046 | 20, /* bitsize */ |
0a1b45a2 | 2047 | false, /* pc_relative */ |
fbaf61ad NC |
2048 | 0, /* bitpos */ |
2049 | complain_overflow_dont,/* complain_on_overflow */ | |
2050 | nds32_elf_hi20_reloc, /* special_function */ | |
2051 | "R_NDS32_TLS_DESC_HI20",/* name */ | |
0a1b45a2 | 2052 | false, /* partial_inplace */ |
fbaf61ad NC |
2053 | 0x000fffff, /* src_mask */ |
2054 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 2055 | false), /* pcrel_offset */ |
fbaf61ad NC |
2056 | |
2057 | /* TLS GD/LD description offset high part. */ | |
2058 | HOWTO2 (R_NDS32_TLS_DESC_HI20,/* type */ | |
2059 | 12, /* rightshift */ | |
c94cb026 | 2060 | 4, /* size */ |
fbaf61ad | 2061 | 20, /* bitsize */ |
0a1b45a2 | 2062 | false, /* pc_relative */ |
fbaf61ad NC |
2063 | 0, /* bitpos */ |
2064 | complain_overflow_dont,/* complain_on_overflow */ | |
2065 | nds32_elf_hi20_reloc, /* special_function */ | |
2066 | "R_NDS32_TLS_DESC_HI20",/* name */ | |
0a1b45a2 | 2067 | false, /* partial_inplace */ |
fbaf61ad NC |
2068 | 0x000fffff, /* src_mask */ |
2069 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 2070 | false), /* pcrel_offset */ |
fbaf61ad NC |
2071 | |
2072 | /* TLS GD/LD description offset low part. */ | |
2073 | HOWTO2 (R_NDS32_TLS_DESC_LO12,/* type */ | |
2074 | 0, /* rightshift */ | |
c94cb026 | 2075 | 4, /* size */ |
fbaf61ad | 2076 | 12, /* bitsize */ |
0a1b45a2 | 2077 | false, /* pc_relative */ |
fbaf61ad NC |
2078 | 0, /* bitpos */ |
2079 | complain_overflow_dont,/* complain_on_overflow */ | |
2080 | nds32_elf_lo12_reloc, /* special_function */ | |
2081 | "R_NDS32_TLS_DESC_LO12",/* name */ | |
0a1b45a2 | 2082 | false, /* partial_inplace */ |
fbaf61ad NC |
2083 | 0x00000fff, /* src_mask */ |
2084 | 0x00000fff, /* dst_mask */ | |
0a1b45a2 | 2085 | false), /* pcrel_offset */ |
fbaf61ad NC |
2086 | |
2087 | /* TLS GD/LD description offset set (movi). */ | |
2088 | HOWTO2 (R_NDS32_TLS_DESC_20, /* type */ | |
2089 | 0, /* rightshift */ | |
c94cb026 | 2090 | 4, /* size */ |
fbaf61ad | 2091 | 20, /* bitsize */ |
0a1b45a2 | 2092 | false, /* pc_relative */ |
fbaf61ad NC |
2093 | 0, /* bitpos */ |
2094 | complain_overflow_signed,/* complain_on_overflow */ | |
2095 | bfd_elf_generic_reloc, /* special_function */ | |
2096 | "R_NDS32_TLS_DESC_20", /* name */ | |
0a1b45a2 | 2097 | false, /* partial_inplace */ |
fbaf61ad NC |
2098 | 0x000fffff, /* src_mask */ |
2099 | 0x000fffff, /* dst_mask */ | |
0a1b45a2 | 2100 | false), /* pcrel_offset */ |
fbaf61ad NC |
2101 | |
2102 | /* TLS GD/LD description offset set (lwi.gp). */ | |
2103 | HOWTO2 (R_NDS32_TLS_DESC_SDA17S2,/* type */ | |
2104 | 2, /* rightshift */ | |
c94cb026 | 2105 | 4, /* size */ |
fbaf61ad | 2106 | 17, /* bitsize */ |
0a1b45a2 | 2107 | false, /* pc_relative */ |
fbaf61ad NC |
2108 | 0, /* bitpos */ |
2109 | complain_overflow_signed,/* complain_on_overflow */ | |
2110 | bfd_elf_generic_reloc, /* special_function */ | |
2111 | "R_NDS32_TLS_DESC_SDA17S2",/* name */ | |
0a1b45a2 | 2112 | false, /* partial_inplace */ |
fbaf61ad NC |
2113 | 0x0001ffff, /* src_mask */ |
2114 | 0x0001ffff, /* dst_mask */ | |
0a1b45a2 | 2115 | false), /* pcrel_offset */ |
35c08157 KLC |
2116 | }; |
2117 | ||
2118 | /* Relocations used for relaxation. */ | |
fbaf61ad NC |
2119 | #define HOWTO3(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \ |
2120 | [C-R_NDS32_RELAX_ENTRY] = HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) | |
2121 | ||
2122 | static reloc_howto_type nds32_elf_relax_howto_table[] = { | |
2123 | HOWTO3 (R_NDS32_RELAX_ENTRY, /* type */ | |
2124 | 0, /* rightshift */ | |
c94cb026 | 2125 | 4, /* size */ |
fbaf61ad | 2126 | 32, /* bitsize */ |
0a1b45a2 | 2127 | false, /* pc_relative */ |
fbaf61ad NC |
2128 | 0, /* bitpos */ |
2129 | complain_overflow_dont,/* complain_on_overflow */ | |
2130 | nds32_elf_ignore_reloc,/* special_function */ | |
2131 | "R_NDS32_RELAX_ENTRY", /* name */ | |
0a1b45a2 | 2132 | false, /* partial_inplace */ |
fbaf61ad NC |
2133 | 0xffffffff, /* src_mask */ |
2134 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2135 | false), /* pcrel_offset */ |
c94cb026 | 2136 | |
fbaf61ad NC |
2137 | HOWTO3 (R_NDS32_GOT_SUFF, /* type */ |
2138 | 0, /* rightshift */ | |
c94cb026 | 2139 | 4, /* size */ |
fbaf61ad | 2140 | 32, /* bitsize */ |
0a1b45a2 | 2141 | false, /* pc_relative */ |
fbaf61ad NC |
2142 | 0, /* bitpos */ |
2143 | complain_overflow_dont,/* complain_on_overflow */ | |
2144 | nds32_elf_ignore_reloc,/* special_function */ | |
2145 | "R_NDS32_GOT_SUFF", /* name */ | |
0a1b45a2 | 2146 | false, /* partial_inplace */ |
fbaf61ad NC |
2147 | 0xffffffff, /* src_mask */ |
2148 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2149 | false), /* pcrel_offset */ |
c94cb026 | 2150 | |
fbaf61ad NC |
2151 | HOWTO3 (R_NDS32_GOTOFF_SUFF, /* type */ |
2152 | 0, /* rightshift */ | |
c94cb026 | 2153 | 4, /* size */ |
fbaf61ad | 2154 | 32, /* bitsize */ |
0a1b45a2 | 2155 | false, /* pc_relative */ |
fbaf61ad NC |
2156 | 0, /* bitpos */ |
2157 | complain_overflow_bitfield,/* complain_on_overflow */ | |
2158 | nds32_elf_ignore_reloc,/* special_function */ | |
2159 | "R_NDS32_GOTOFF_SUFF", /* name */ | |
0a1b45a2 | 2160 | false, /* partial_inplace */ |
fbaf61ad NC |
2161 | 0xffffffff, /* src_mask */ |
2162 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2163 | false), /* pcrel_offset */ |
c94cb026 | 2164 | |
fbaf61ad NC |
2165 | HOWTO3 (R_NDS32_PLT_GOT_SUFF, /* type */ |
2166 | 0, /* rightshift */ | |
c94cb026 | 2167 | 4, /* size */ |
fbaf61ad | 2168 | 32, /* bitsize */ |
0a1b45a2 | 2169 | false, /* pc_relative */ |
fbaf61ad NC |
2170 | 0, /* bitpos */ |
2171 | complain_overflow_dont,/* complain_on_overflow */ | |
2172 | nds32_elf_ignore_reloc,/* special_function */ | |
2173 | "R_NDS32_PLT_GOT_SUFF",/* name */ | |
0a1b45a2 | 2174 | false, /* partial_inplace */ |
fbaf61ad NC |
2175 | 0xffffffff, /* src_mask */ |
2176 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2177 | false), /* pcrel_offset */ |
c94cb026 | 2178 | |
fbaf61ad NC |
2179 | HOWTO3 (R_NDS32_MULCALL_SUFF, /* type */ |
2180 | 0, /* rightshift */ | |
c94cb026 | 2181 | 4, /* size */ |
fbaf61ad | 2182 | 32, /* bitsize */ |
0a1b45a2 | 2183 | false, /* pc_relative */ |
fbaf61ad NC |
2184 | 0, /* bitpos */ |
2185 | complain_overflow_dont,/* complain_on_overflow */ | |
2186 | nds32_elf_ignore_reloc,/* special_function */ | |
2187 | "R_NDS32_MULCALL_SUFF",/* name */ | |
0a1b45a2 | 2188 | false, /* partial_inplace */ |
fbaf61ad NC |
2189 | 0xffffffff, /* src_mask */ |
2190 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2191 | false), /* pcrel_offset */ |
c94cb026 | 2192 | |
fbaf61ad NC |
2193 | HOWTO3 (R_NDS32_PTR, /* type */ |
2194 | 0, /* rightshift */ | |
c94cb026 | 2195 | 4, /* size */ |
fbaf61ad | 2196 | 32, /* bitsize */ |
0a1b45a2 | 2197 | false, /* pc_relative */ |
fbaf61ad NC |
2198 | 0, /* bitpos */ |
2199 | complain_overflow_dont,/* complain_on_overflow */ | |
2200 | nds32_elf_ignore_reloc,/* special_function */ | |
2201 | "R_NDS32_PTR", /* name */ | |
0a1b45a2 | 2202 | false, /* partial_inplace */ |
fbaf61ad NC |
2203 | 0xffffffff, /* src_mask */ |
2204 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2205 | false), /* pcrel_offset */ |
c94cb026 | 2206 | |
fbaf61ad NC |
2207 | HOWTO3 (R_NDS32_PTR_COUNT, /* type */ |
2208 | 0, /* rightshift */ | |
c94cb026 | 2209 | 4, /* size */ |
fbaf61ad | 2210 | 32, /* bitsize */ |
0a1b45a2 | 2211 | false, /* pc_relative */ |
fbaf61ad NC |
2212 | 0, /* bitpos */ |
2213 | complain_overflow_dont,/* complain_on_overflow */ | |
2214 | nds32_elf_ignore_reloc,/* special_function */ | |
2215 | "R_NDS32_PTR_COUNT", /* name */ | |
0a1b45a2 | 2216 | false, /* partial_inplace */ |
fbaf61ad NC |
2217 | 0xffffffff, /* src_mask */ |
2218 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2219 | false), /* pcrel_offset */ |
c94cb026 | 2220 | |
fbaf61ad NC |
2221 | HOWTO3 (R_NDS32_PTR_RESOLVED, /* type */ |
2222 | 0, /* rightshift */ | |
c94cb026 | 2223 | 4, /* size */ |
fbaf61ad | 2224 | 32, /* bitsize */ |
0a1b45a2 | 2225 | false, /* pc_relative */ |
fbaf61ad NC |
2226 | 0, /* bitpos */ |
2227 | complain_overflow_dont,/* complain_on_overflow */ | |
2228 | nds32_elf_ignore_reloc,/* special_function */ | |
2229 | "R_NDS32_PTR_RESOLVED",/* name */ | |
0a1b45a2 | 2230 | false, /* partial_inplace */ |
fbaf61ad NC |
2231 | 0xffffffff, /* src_mask */ |
2232 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2233 | false), /* pcrel_offset */ |
c94cb026 | 2234 | |
fbaf61ad NC |
2235 | HOWTO3 (R_NDS32_PLTBLOCK, /* type */ |
2236 | 0, /* rightshift */ | |
c94cb026 | 2237 | 4, /* size */ |
fbaf61ad | 2238 | 32, /* bitsize */ |
0a1b45a2 | 2239 | false, /* pc_relative */ |
fbaf61ad NC |
2240 | 0, /* bitpos */ |
2241 | complain_overflow_dont,/* complain_on_overflow */ | |
2242 | nds32_elf_ignore_reloc,/* special_function */ | |
2243 | "R_NDS32_PLTBLOCK", /* name */ | |
0a1b45a2 | 2244 | false, /* partial_inplace */ |
fbaf61ad NC |
2245 | 0xffffffff, /* src_mask */ |
2246 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2247 | false), /* pcrel_offset */ |
c94cb026 | 2248 | |
fbaf61ad NC |
2249 | HOWTO3 (R_NDS32_RELAX_REGION_BEGIN,/* type */ |
2250 | 0, /* rightshift */ | |
c94cb026 | 2251 | 4, /* size */ |
fbaf61ad | 2252 | 32, /* bitsize */ |
0a1b45a2 | 2253 | false, /* pc_relative */ |
fbaf61ad NC |
2254 | 0, /* bitpos */ |
2255 | complain_overflow_dont,/* complain_on_overflow */ | |
2256 | nds32_elf_ignore_reloc,/* special_function */ | |
2257 | "R_NDS32_RELAX_REGION_BEGIN",/* name */ | |
0a1b45a2 | 2258 | false, /* partial_inplace */ |
fbaf61ad NC |
2259 | 0xffffffff, /* src_mask */ |
2260 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2261 | false), /* pcrel_offset */ |
c94cb026 | 2262 | |
fbaf61ad NC |
2263 | HOWTO3 (R_NDS32_RELAX_REGION_END,/* type */ |
2264 | 0, /* rightshift */ | |
c94cb026 | 2265 | 4, /* size */ |
fbaf61ad | 2266 | 32, /* bitsize */ |
0a1b45a2 | 2267 | false, /* pc_relative */ |
fbaf61ad NC |
2268 | 0, /* bitpos */ |
2269 | complain_overflow_dont,/* complain_on_overflow */ | |
2270 | nds32_elf_ignore_reloc,/* special_function */ | |
2271 | "R_NDS32_RELAX_REGION_END",/* name */ | |
0a1b45a2 | 2272 | false, /* partial_inplace */ |
fbaf61ad NC |
2273 | 0xffffffff, /* src_mask */ |
2274 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2275 | false), /* pcrel_offset */ |
c94cb026 | 2276 | |
fbaf61ad NC |
2277 | HOWTO3 (R_NDS32_MINUEND, /* type */ |
2278 | 0, /* rightshift */ | |
c94cb026 | 2279 | 4, /* size */ |
fbaf61ad | 2280 | 32, /* bitsize */ |
0a1b45a2 | 2281 | false, /* pc_relative */ |
fbaf61ad NC |
2282 | 0, /* bitpos */ |
2283 | complain_overflow_dont,/* complain_on_overflow */ | |
2284 | nds32_elf_ignore_reloc,/* special_function */ | |
2285 | "R_NDS32_MINUEND", /* name */ | |
0a1b45a2 | 2286 | false, /* partial_inplace */ |
fbaf61ad NC |
2287 | 0xffffffff, /* src_mask */ |
2288 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2289 | false), /* pcrel_offset */ |
c94cb026 | 2290 | |
fbaf61ad NC |
2291 | HOWTO3 (R_NDS32_SUBTRAHEND, /* type */ |
2292 | 0, /* rightshift */ | |
c94cb026 | 2293 | 4, /* size */ |
fbaf61ad | 2294 | 32, /* bitsize */ |
0a1b45a2 | 2295 | false, /* pc_relative */ |
fbaf61ad NC |
2296 | 0, /* bitpos */ |
2297 | complain_overflow_dont,/* complain_on_overflow */ | |
2298 | nds32_elf_ignore_reloc,/* special_function */ | |
2299 | "R_NDS32_SUBTRAHEND", /* name */ | |
0a1b45a2 | 2300 | false, /* partial_inplace */ |
fbaf61ad NC |
2301 | 0xffffffff, /* src_mask */ |
2302 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2303 | false), /* pcrel_offset */ |
c94cb026 | 2304 | |
fbaf61ad NC |
2305 | HOWTO3 (R_NDS32_DIFF8, /* type */ |
2306 | 0, /* rightshift */ | |
c94cb026 | 2307 | 1, /* size */ |
fbaf61ad | 2308 | 8, /* bitsize */ |
0a1b45a2 | 2309 | false, /* pc_relative */ |
fbaf61ad NC |
2310 | 0, /* bitpos */ |
2311 | complain_overflow_dont,/* complain_on_overflow */ | |
2312 | nds32_elf_ignore_reloc,/* special_function */ | |
2313 | "R_NDS32_DIFF8", /* name */ | |
0a1b45a2 | 2314 | false, /* partial_inplace */ |
fbaf61ad NC |
2315 | 0x000000ff, /* src_mask */ |
2316 | 0x000000ff, /* dst_mask */ | |
0a1b45a2 | 2317 | false), /* pcrel_offset */ |
c94cb026 | 2318 | |
fbaf61ad NC |
2319 | HOWTO3 (R_NDS32_DIFF16, /* type */ |
2320 | 0, /* rightshift */ | |
c94cb026 | 2321 | 2, /* size */ |
fbaf61ad | 2322 | 16, /* bitsize */ |
0a1b45a2 | 2323 | false, /* pc_relative */ |
fbaf61ad NC |
2324 | 0, /* bitpos */ |
2325 | complain_overflow_dont,/* complain_on_overflow */ | |
2326 | nds32_elf_ignore_reloc,/* special_function */ | |
2327 | "R_NDS32_DIFF16", /* name */ | |
0a1b45a2 | 2328 | false, /* partial_inplace */ |
fbaf61ad NC |
2329 | 0x0000ffff, /* src_mask */ |
2330 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 2331 | false), /* pcrel_offset */ |
c94cb026 | 2332 | |
fbaf61ad NC |
2333 | HOWTO3 (R_NDS32_DIFF32, /* type */ |
2334 | 0, /* rightshift */ | |
c94cb026 | 2335 | 4, /* size */ |
fbaf61ad | 2336 | 32, /* bitsize */ |
0a1b45a2 | 2337 | false, /* pc_relative */ |
fbaf61ad NC |
2338 | 0, /* bitpos */ |
2339 | complain_overflow_dont,/* complain_on_overflow */ | |
2340 | nds32_elf_ignore_reloc,/* special_function */ | |
2341 | "R_NDS32_DIFF32", /* name */ | |
0a1b45a2 | 2342 | false, /* partial_inplace */ |
fbaf61ad NC |
2343 | 0xffffffff, /* src_mask */ |
2344 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2345 | false), /* pcrel_offset */ |
c94cb026 | 2346 | |
fbaf61ad NC |
2347 | HOWTO3 (R_NDS32_DIFF_ULEB128, /* type */ |
2348 | 0, /* rightshift */ | |
c94cb026 | 2349 | 1, /* size */ |
fbaf61ad | 2350 | 0, /* bitsize */ |
0a1b45a2 | 2351 | false, /* pc_relative */ |
fbaf61ad NC |
2352 | 0, /* bitpos */ |
2353 | complain_overflow_dont,/* complain_on_overflow */ | |
2354 | nds32_elf_ignore_reloc,/* special_function */ | |
2355 | "R_NDS32_DIFF_ULEB128",/* name */ | |
0a1b45a2 | 2356 | false, /* partial_inplace */ |
fbaf61ad NC |
2357 | 0xffffffff, /* src_mask */ |
2358 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2359 | false), /* pcrel_offset */ |
c94cb026 | 2360 | |
fbaf61ad NC |
2361 | HOWTO3 (R_NDS32_DATA, /* type */ |
2362 | 0, /* rightshift */ | |
c94cb026 | 2363 | 4, /* size */ |
fbaf61ad | 2364 | 32, /* bitsize */ |
0a1b45a2 | 2365 | false, /* pc_relative */ |
fbaf61ad NC |
2366 | 0, /* bitpos */ |
2367 | complain_overflow_dont,/* complain_on_overflow */ | |
2368 | nds32_elf_ignore_reloc,/* special_function */ | |
2369 | "R_NDS32_DATA", /* name */ | |
0a1b45a2 | 2370 | false, /* partial_inplace */ |
fbaf61ad NC |
2371 | 0xffffffff, /* src_mask */ |
2372 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2373 | false), /* pcrel_offset */ |
c94cb026 | 2374 | |
fbaf61ad NC |
2375 | HOWTO3 (R_NDS32_TRAN, /* type */ |
2376 | 0, /* rightshift */ | |
c94cb026 | 2377 | 4, /* size */ |
fbaf61ad | 2378 | 32, /* bitsize */ |
0a1b45a2 | 2379 | false, /* pc_relative */ |
fbaf61ad NC |
2380 | 0, /* bitpos */ |
2381 | complain_overflow_dont,/* complain_on_overflow */ | |
2382 | nds32_elf_ignore_reloc,/* special_function */ | |
2383 | "R_NDS32_TRAN", /* name */ | |
0a1b45a2 | 2384 | false, /* partial_inplace */ |
fbaf61ad NC |
2385 | 0xffffffff, /* src_mask */ |
2386 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2387 | false), /* pcrel_offset */ |
c94cb026 | 2388 | |
fbaf61ad NC |
2389 | HOWTO3 (R_NDS32_TLS_LE_ADD, /* type */ |
2390 | 0, /* rightshift */ | |
c94cb026 | 2391 | 4, /* size */ |
fbaf61ad | 2392 | 32, /* bitsize */ |
0a1b45a2 | 2393 | false, /* pc_relative */ |
fbaf61ad NC |
2394 | 0, /* bitpos */ |
2395 | complain_overflow_dont,/* complain_on_overflow */ | |
2396 | nds32_elf_ignore_reloc,/* special_function */ | |
2397 | "R_NDS32_TLS_LE_ADD", /* name */ | |
0a1b45a2 | 2398 | false, /* partial_inplace */ |
fbaf61ad NC |
2399 | 0xffffffff, /* src_mask */ |
2400 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2401 | false), /* pcrel_offset */ |
c94cb026 | 2402 | |
fbaf61ad NC |
2403 | HOWTO3 (R_NDS32_TLS_LE_LS, /* type */ |
2404 | 0, /* rightshift */ | |
c94cb026 | 2405 | 4, /* size */ |
fbaf61ad | 2406 | 32, /* bitsize */ |
0a1b45a2 | 2407 | false, /* pc_relative */ |
fbaf61ad NC |
2408 | 0, /* bitpos */ |
2409 | complain_overflow_dont,/* complain_on_overflow */ | |
2410 | nds32_elf_ignore_reloc,/* special_function */ | |
2411 | "R_NDS32_TLS_LE_LS", /* name */ | |
0a1b45a2 | 2412 | false, /* partial_inplace */ |
fbaf61ad NC |
2413 | 0xffffffff, /* src_mask */ |
2414 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2415 | false), /* pcrel_offset */ |
c94cb026 | 2416 | |
fbaf61ad NC |
2417 | HOWTO3 (R_NDS32_EMPTY, /* type */ |
2418 | 0, /* rightshift */ | |
c94cb026 | 2419 | 4, /* size */ |
fbaf61ad | 2420 | 32, /* bitsize */ |
0a1b45a2 | 2421 | false, /* pc_relative */ |
fbaf61ad NC |
2422 | 0, /* bitpos */ |
2423 | complain_overflow_dont,/* complain_on_overflow */ | |
2424 | nds32_elf_ignore_reloc,/* special_function */ | |
2425 | "R_NDS32_EMPTY", /* name */ | |
0a1b45a2 | 2426 | false, /* partial_inplace */ |
fbaf61ad NC |
2427 | 0xffffffff, /* src_mask */ |
2428 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2429 | false), /* pcrel_offset */ |
c94cb026 | 2430 | |
fbaf61ad NC |
2431 | /* TLS GD/LD description address base addition. */ |
2432 | HOWTO3 (R_NDS32_TLS_DESC_ADD, /* type */ | |
2433 | 0, /* rightshift */ | |
c94cb026 | 2434 | 4, /* size */ |
fbaf61ad | 2435 | 32, /* bitsize */ |
0a1b45a2 | 2436 | false, /* pc_relative */ |
fbaf61ad NC |
2437 | 0, /* bitpos */ |
2438 | complain_overflow_dont,/* complain_on_overflow */ | |
2439 | nds32_elf_ignore_reloc,/* special_function */ | |
2440 | "R_NDS32_TLS_DESC_ADD",/* name */ | |
0a1b45a2 | 2441 | false, /* partial_inplace */ |
fbaf61ad NC |
2442 | 0xffffffff, /* src_mask */ |
2443 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2444 | false), /* pcrel_offset */ |
c94cb026 | 2445 | |
fbaf61ad NC |
2446 | /* TLS GD/LD description function load. */ |
2447 | HOWTO3 (R_NDS32_TLS_DESC_FUNC,/* type */ | |
2448 | 0, /* rightshift */ | |
c94cb026 | 2449 | 4, /* size */ |
fbaf61ad | 2450 | 32, /* bitsize */ |
0a1b45a2 | 2451 | false, /* pc_relative */ |
fbaf61ad NC |
2452 | 0, /* bitpos */ |
2453 | complain_overflow_dont,/* complain_on_overflow */ | |
2454 | nds32_elf_ignore_reloc,/* special_function */ | |
2455 | "R_NDS32_TLS_DESC_FUNC",/* name */ | |
0a1b45a2 | 2456 | false, /* partial_inplace */ |
fbaf61ad NC |
2457 | 0xffffffff, /* src_mask */ |
2458 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2459 | false), /* pcrel_offset */ |
c94cb026 | 2460 | |
fbaf61ad NC |
2461 | /* TLS DESC resolve function call. */ |
2462 | HOWTO3 (R_NDS32_TLS_DESC_CALL,/* type */ | |
2463 | 0, /* rightshift */ | |
c94cb026 | 2464 | 4, /* size */ |
fbaf61ad | 2465 | 32, /* bitsize */ |
0a1b45a2 | 2466 | false, /* pc_relative */ |
fbaf61ad NC |
2467 | 0, /* bitpos */ |
2468 | complain_overflow_dont,/* complain_on_overflow */ | |
2469 | nds32_elf_ignore_reloc,/* special_function */ | |
2470 | "R_NDS32_TLS_DESC_CALL",/* name */ | |
0a1b45a2 | 2471 | false, /* partial_inplace */ |
fbaf61ad NC |
2472 | 0xffffffff, /* src_mask */ |
2473 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2474 | false), /* pcrel_offset */ |
c94cb026 | 2475 | |
fbaf61ad NC |
2476 | /* TLS DESC variable access. */ |
2477 | HOWTO3 (R_NDS32_TLS_DESC_MEM, /* type */ | |
2478 | 0, /* rightshift */ | |
c94cb026 | 2479 | 4, /* size */ |
fbaf61ad | 2480 | 32, /* bitsize */ |
0a1b45a2 | 2481 | false, /* pc_relative */ |
fbaf61ad NC |
2482 | 0, /* bitpos */ |
2483 | complain_overflow_dont,/* complain_on_overflow */ | |
2484 | nds32_elf_ignore_reloc,/* special_function */ | |
2485 | "R_NDS32_TLS_DESC_MEM",/* name */ | |
0a1b45a2 | 2486 | false, /* partial_inplace */ |
fbaf61ad NC |
2487 | 0xffffffff, /* src_mask */ |
2488 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2489 | false), /* pcrel_offset */ |
c94cb026 | 2490 | |
fbaf61ad NC |
2491 | /* TLS GD/LD description mark (@tlsdec). */ |
2492 | HOWTO3 (R_NDS32_RELAX_REMOVE, /* type */ | |
2493 | 0, /* rightshift */ | |
c94cb026 | 2494 | 4, /* size */ |
fbaf61ad | 2495 | 32, /* bitsize */ |
0a1b45a2 | 2496 | false, /* pc_relative */ |
fbaf61ad NC |
2497 | 0, /* bitpos */ |
2498 | complain_overflow_dont,/* complain_on_overflow */ | |
2499 | nds32_elf_ignore_reloc,/* special_function */ | |
2500 | "R_NDS32_REMOVE", /* name */ | |
0a1b45a2 | 2501 | false, /* partial_inplace */ |
fbaf61ad NC |
2502 | 0xffffffff, /* src_mask */ |
2503 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2504 | false), /* pcrel_offset */ |
c94cb026 | 2505 | |
fbaf61ad NC |
2506 | /* TLS GD/LD description mark (@tlsdec). */ |
2507 | HOWTO3 (R_NDS32_RELAX_GROUP, /* type */ | |
2508 | 0, /* rightshift */ | |
c94cb026 | 2509 | 4, /* size */ |
fbaf61ad | 2510 | 32, /* bitsize */ |
0a1b45a2 | 2511 | false, /* pc_relative */ |
fbaf61ad NC |
2512 | 0, /* bitpos */ |
2513 | complain_overflow_dont,/* complain_on_overflow */ | |
2514 | nds32_elf_ignore_reloc,/* special_function */ | |
2515 | "R_NDS32_GROUP", /* name */ | |
0a1b45a2 | 2516 | false, /* partial_inplace */ |
fbaf61ad NC |
2517 | 0xffffffff, /* src_mask */ |
2518 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2519 | false), /* pcrel_offset */ |
c94cb026 | 2520 | |
fbaf61ad NC |
2521 | HOWTO3 (R_NDS32_TLS_IEGP_LW, /* type */ |
2522 | 0, /* rightshift */ | |
c94cb026 | 2523 | 4, /* size */ |
fbaf61ad | 2524 | 32, /* bitsize */ |
0a1b45a2 | 2525 | false, /* pc_relative */ |
fbaf61ad NC |
2526 | 0, /* bitpos */ |
2527 | complain_overflow_dont,/* complain_on_overflow */ | |
2528 | nds32_elf_ignore_reloc,/* special_function */ | |
2529 | "R_NDS32_TLS_IEGP_LW", /* name */ | |
0a1b45a2 | 2530 | false, /* partial_inplace */ |
fbaf61ad NC |
2531 | 0xffffffff, /* src_mask */ |
2532 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2533 | false), /* pcrel_offset */ |
c94cb026 | 2534 | |
fbaf61ad NC |
2535 | /* LA and FLSI relaxation. */ |
2536 | HOWTO3 (R_NDS32_LSI, /* type */ | |
2537 | 0, /* rightshift */ | |
c94cb026 | 2538 | 4, /* size */ |
fbaf61ad | 2539 | 32, /* bitsize */ |
0a1b45a2 | 2540 | false, /* pc_relative */ |
fbaf61ad NC |
2541 | 0, /* bitpos */ |
2542 | complain_overflow_dont,/* complain_on_overflow */ | |
2543 | nds32_elf_ignore_reloc,/* special_function */ | |
2544 | "R_NDS32_LSI", /* name */ | |
0a1b45a2 | 2545 | false, /* partial_inplace */ |
fbaf61ad NC |
2546 | 0xffffffff, /* src_mask */ |
2547 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 2548 | false), |
35c08157 KLC |
2549 | }; |
2550 | ||
fbaf61ad NC |
2551 | static unsigned long dl_tlsdesc_lazy_trampoline[] = |
2552 | { | |
2553 | 0x46200000, /* sethi $r2,#0x0 */ | |
2554 | 0x58210000, /* ori $r2,$r2,#0x0 */ | |
2555 | 0x40217400, /* add $r2,$r2,$gp */ | |
2556 | 0x04210000, /* lwi $r2,[$r2+#0x0] */ | |
2557 | 0x46300000, /* sethi $r3,#0x0 */ | |
2558 | 0x58318000, /* ori $r3,$r3,#0x0 */ | |
2559 | 0x4031f400, /* add $r3,$r3,$gp */ | |
2560 | 0x4a000800, /* jr $r2 */ | |
2561 | }; | |
2562 | ||
2563 | static void | |
2564 | nds32_put_trampoline (void *contents, const unsigned long *template, | |
2565 | unsigned count) | |
2566 | { | |
2567 | unsigned ix; | |
2568 | ||
2569 | for (ix = 0; ix != count; ix++) | |
2570 | { | |
2571 | unsigned long insn = template[ix]; | |
2572 | bfd_putb32 (insn, (char *) contents + ix * 4); | |
2573 | } | |
2574 | } | |
2575 | ||
35c08157 KLC |
2576 | /* nds32_insertion_sort sorts an array with nmemb elements of size size. |
2577 | This prototype is the same as qsort (). */ | |
2578 | ||
443aa5f0 | 2579 | static void |
35c08157 KLC |
2580 | nds32_insertion_sort (void *base, size_t nmemb, size_t size, |
2581 | int (*compar) (const void *lhs, const void *rhs)) | |
2582 | { | |
2583 | char *ptr = (char *) base; | |
1c8f6a4d | 2584 | int i, j; |
9a733151 AM |
2585 | char tmp[sizeof (Elf_Internal_Rela)]; |
2586 | ||
2587 | BFD_ASSERT (size <= sizeof (tmp)); | |
35c08157 KLC |
2588 | |
2589 | /* If i is less than j, i is inserted before j. | |
2590 | ||
2591 | |---- j ----- i --------------| | |
2592 | \ / \ / | |
2593 | sorted unsorted | |
2594 | */ | |
2595 | ||
1c8f6a4d | 2596 | for (i = 1; i < (int) nmemb; i++) |
35c08157 | 2597 | { |
1c8f6a4d KLC |
2598 | for (j = (i - 1); j >= 0; j--) |
2599 | if (compar (ptr + i * size, ptr + j * size) >= 0) | |
35c08157 KLC |
2600 | break; |
2601 | ||
1c8f6a4d KLC |
2602 | j++; |
2603 | ||
35c08157 | 2604 | if (i == j) |
1c8f6a4d | 2605 | continue; /* i is in order. */ |
35c08157 KLC |
2606 | |
2607 | memcpy (tmp, ptr + i * size, size); | |
2608 | memmove (ptr + (j + 1) * size, ptr + j * size, (i - j) * size); | |
2609 | memcpy (ptr + j * size, tmp, size); | |
2610 | } | |
2611 | } | |
2612 | ||
2613 | /* Sort relocation by r_offset. | |
2614 | ||
2615 | We didn't use qsort () in stdlib, because quick-sort is not a stable sorting | |
2616 | algorithm. Relocations at the same r_offset must keep their order. | |
2617 | For example, RELAX_ENTRY must be the very first relocation entry. | |
2618 | ||
2619 | Currently, this function implements insertion-sort. | |
2620 | ||
2621 | FIXME: If we already sort them in assembler, why bother sort them | |
2622 | here again? */ | |
2623 | ||
2624 | static int | |
2625 | compar_reloc (const void *lhs, const void *rhs) | |
2626 | { | |
2627 | const Elf_Internal_Rela *l = (const Elf_Internal_Rela *) lhs; | |
2628 | const Elf_Internal_Rela *r = (const Elf_Internal_Rela *) rhs; | |
2629 | ||
2630 | if (l->r_offset > r->r_offset) | |
2631 | return 1; | |
2632 | else if (l->r_offset == r->r_offset) | |
2633 | return 0; | |
2634 | else | |
2635 | return -1; | |
2636 | } | |
2637 | ||
2638 | /* Functions listed below are only used for old relocs. | |
fbaf61ad NC |
2639 | nds32_elf_9_pcrel_reloc |
2640 | nds32_elf_do_9_pcrel_reloc | |
2641 | nds32_elf_hi20_reloc | |
2642 | nds32_elf_relocate_hi20 | |
2643 | nds32_elf_lo12_reloc | |
2644 | nds32_elf_sda15_reloc | |
2645 | nds32_elf_generic_reloc. */ | |
35c08157 KLC |
2646 | |
2647 | /* Handle the R_NDS32_9_PCREL & R_NDS32_9_PCREL_RELA reloc. */ | |
2648 | ||
2649 | static bfd_reloc_status_type | |
fbaf61ad NC |
2650 | nds32_elf_9_pcrel_reloc (bfd * abfd, |
2651 | arelent * reloc_entry, | |
2652 | asymbol * symbol, | |
2653 | void * data, | |
2654 | asection * input_section, | |
2655 | bfd * output_bfd, | |
2656 | char ** error_message ATTRIBUTE_UNUSED) | |
35c08157 KLC |
2657 | { |
2658 | /* This part is from bfd_elf_generic_reloc. */ | |
2659 | if (output_bfd != (bfd *) NULL | |
2660 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
2661 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
2662 | { | |
2663 | reloc_entry->address += input_section->output_offset; | |
2664 | return bfd_reloc_ok; | |
2665 | } | |
2666 | ||
2667 | if (output_bfd != NULL) | |
2668 | { | |
2669 | /* FIXME: See bfd_perform_relocation. Is this right? */ | |
2670 | return bfd_reloc_continue; | |
2671 | } | |
2672 | ||
2673 | return nds32_elf_do_9_pcrel_reloc (abfd, reloc_entry->howto, | |
2674 | input_section, | |
2675 | data, reloc_entry->address, | |
2676 | symbol->section, | |
2677 | (symbol->value | |
2678 | + symbol->section->output_section->vma | |
2679 | + symbol->section->output_offset), | |
2680 | reloc_entry->addend); | |
2681 | } | |
2682 | ||
2683 | /* Utility to actually perform an R_NDS32_9_PCREL reloc. */ | |
2684 | #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1) | |
2685 | ||
2686 | static bfd_reloc_status_type | |
fbaf61ad NC |
2687 | nds32_elf_do_9_pcrel_reloc (bfd * abfd, |
2688 | reloc_howto_type * howto, | |
2689 | asection * input_section, | |
2690 | bfd_byte * data, | |
2691 | bfd_vma offset, | |
2692 | asection * symbol_section ATTRIBUTE_UNUSED, | |
2693 | bfd_vma symbol_value, | |
2694 | bfd_vma addend) | |
35c08157 KLC |
2695 | { |
2696 | bfd_signed_vma relocation; | |
2697 | unsigned short x; | |
2698 | bfd_reloc_status_type status; | |
2699 | ||
2700 | /* Sanity check the address (offset in section). */ | |
2701 | if (offset > bfd_get_section_limit (abfd, input_section)) | |
2702 | return bfd_reloc_outofrange; | |
2703 | ||
2704 | relocation = symbol_value + addend; | |
2705 | /* Make it pc relative. */ | |
2706 | relocation -= (input_section->output_section->vma | |
2707 | + input_section->output_offset); | |
2708 | /* These jumps mask off the lower two bits of the current address | |
2709 | before doing pcrel calculations. */ | |
2710 | relocation -= (offset & -(bfd_vma) 2); | |
2711 | ||
1c8f6a4d | 2712 | if (relocation < -ACCURATE_8BIT_S1 || relocation >= ACCURATE_8BIT_S1) |
35c08157 KLC |
2713 | status = bfd_reloc_overflow; |
2714 | else | |
2715 | status = bfd_reloc_ok; | |
2716 | ||
2717 | x = bfd_getb16 (data + offset); | |
2718 | ||
2719 | relocation >>= howto->rightshift; | |
2720 | relocation <<= howto->bitpos; | |
2721 | x = (x & ~howto->dst_mask) | |
2722 | | (((x & howto->src_mask) + relocation) & howto->dst_mask); | |
2723 | ||
2724 | bfd_putb16 ((bfd_vma) x, data + offset); | |
2725 | ||
2726 | return status; | |
2727 | } | |
2728 | ||
2729 | /* Handle the R_NDS32_HI20_[SU]LO relocs. | |
2730 | HI20_SLO is for the add3 and load/store with displacement instructions. | |
2731 | HI20 is for the or3 instruction. | |
2732 | For R_NDS32_HI20_SLO, the lower 16 bits are sign extended when added to | |
2733 | the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then | |
2734 | we must add one to the high 16 bytes (which will get subtracted off when | |
2735 | the low 16 bits are added). | |
2736 | These relocs have to be done in combination with an R_NDS32_LO12 reloc | |
2737 | because there is a carry from the LO12 to the HI20. Here we just save | |
2738 | the information we need; we do the actual relocation when we see the LO12. | |
2739 | This code is copied from the elf32-mips.c. We also support an arbitrary | |
2740 | number of HI20 relocs to be associated with a single LO12 reloc. The | |
2741 | assembler sorts the relocs to ensure each HI20 immediately precedes its | |
2742 | LO12. However if there are multiple copies, the assembler may not find | |
2743 | the real LO12 so it picks the first one it finds. */ | |
2744 | ||
2745 | struct nds32_hi20 | |
2746 | { | |
2747 | struct nds32_hi20 *next; | |
2748 | bfd_byte *addr; | |
2749 | bfd_vma addend; | |
2750 | }; | |
2751 | ||
2752 | static struct nds32_hi20 *nds32_hi20_list; | |
2753 | ||
2754 | static bfd_reloc_status_type | |
fbaf61ad NC |
2755 | nds32_elf_hi20_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
2756 | arelent *reloc_entry, | |
2757 | asymbol *symbol, | |
2758 | void *data, | |
2759 | asection *input_section, | |
2760 | bfd *output_bfd, | |
2761 | char **error_message ATTRIBUTE_UNUSED) | |
35c08157 KLC |
2762 | { |
2763 | bfd_reloc_status_type ret; | |
2764 | bfd_vma relocation; | |
2765 | struct nds32_hi20 *n; | |
2766 | ||
2767 | /* This part is from bfd_elf_generic_reloc. | |
2768 | If we're relocating, and this an external symbol, we don't want | |
2769 | to change anything. */ | |
2770 | if (output_bfd != (bfd *) NULL | |
2771 | && (symbol->flags & BSF_SECTION_SYM) == 0 && reloc_entry->addend == 0) | |
2772 | { | |
2773 | reloc_entry->address += input_section->output_offset; | |
2774 | return bfd_reloc_ok; | |
2775 | } | |
2776 | ||
2777 | /* Sanity check the address (offset in section). */ | |
2778 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
2779 | return bfd_reloc_outofrange; | |
2780 | ||
2781 | ret = bfd_reloc_ok; | |
2782 | if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL) | |
2783 | ret = bfd_reloc_undefined; | |
2784 | ||
2785 | if (bfd_is_com_section (symbol->section)) | |
2786 | relocation = 0; | |
2787 | else | |
2788 | relocation = symbol->value; | |
2789 | ||
2790 | relocation += symbol->section->output_section->vma; | |
2791 | relocation += symbol->section->output_offset; | |
2792 | relocation += reloc_entry->addend; | |
2793 | ||
2794 | /* Save the information, and let LO12 do the actual relocation. */ | |
2795 | n = (struct nds32_hi20 *) bfd_malloc ((bfd_size_type) sizeof *n); | |
2796 | if (n == NULL) | |
2797 | return bfd_reloc_outofrange; | |
2798 | ||
2799 | n->addr = (bfd_byte *) data + reloc_entry->address; | |
2800 | n->addend = relocation; | |
2801 | n->next = nds32_hi20_list; | |
2802 | nds32_hi20_list = n; | |
2803 | ||
2804 | if (output_bfd != (bfd *) NULL) | |
2805 | reloc_entry->address += input_section->output_offset; | |
2806 | ||
2807 | return ret; | |
2808 | } | |
2809 | ||
2810 | /* Handle an NDS32 ELF HI20 reloc. */ | |
2811 | ||
2812 | static void | |
2813 | nds32_elf_relocate_hi20 (bfd *input_bfd ATTRIBUTE_UNUSED, | |
fbaf61ad NC |
2814 | int type ATTRIBUTE_UNUSED, |
2815 | Elf_Internal_Rela *relhi, | |
2816 | Elf_Internal_Rela *rello, | |
2817 | bfd_byte *contents, | |
35c08157 KLC |
2818 | bfd_vma addend) |
2819 | { | |
2820 | unsigned long insn; | |
2821 | bfd_vma addlo; | |
2822 | ||
2823 | insn = bfd_getb32 (contents + relhi->r_offset); | |
2824 | ||
2825 | addlo = bfd_getb32 (contents + rello->r_offset); | |
2826 | addlo &= 0xfff; | |
2827 | ||
2828 | addend += ((insn & 0xfffff) << 20) + addlo; | |
2829 | ||
2830 | insn = (insn & 0xfff00000) | ((addend >> 12) & 0xfffff); | |
2831 | bfd_putb32 (insn, contents + relhi->r_offset); | |
2832 | } | |
2833 | ||
2834 | /* Do an R_NDS32_LO12 relocation. This is a straightforward 12 bit | |
2835 | inplace relocation; this function exists in order to do the | |
2836 | R_NDS32_HI20_[SU]LO relocation described above. */ | |
2837 | ||
2838 | static bfd_reloc_status_type | |
2839 | nds32_elf_lo12_reloc (bfd *input_bfd, arelent *reloc_entry, asymbol *symbol, | |
2840 | void *data, asection *input_section, bfd *output_bfd, | |
2841 | char **error_message) | |
2842 | { | |
2843 | /* This part is from bfd_elf_generic_reloc. | |
2844 | If we're relocating, and this an external symbol, we don't want | |
2845 | to change anything. */ | |
2846 | if (output_bfd != NULL && (symbol->flags & BSF_SECTION_SYM) == 0 | |
2847 | && reloc_entry->addend == 0) | |
2848 | { | |
2849 | reloc_entry->address += input_section->output_offset; | |
2850 | return bfd_reloc_ok; | |
2851 | } | |
2852 | ||
2853 | if (nds32_hi20_list != NULL) | |
2854 | { | |
2855 | struct nds32_hi20 *l; | |
2856 | ||
2857 | l = nds32_hi20_list; | |
2858 | while (l != NULL) | |
2859 | { | |
2860 | unsigned long insn; | |
2861 | unsigned long val; | |
2862 | unsigned long vallo; | |
2863 | struct nds32_hi20 *next; | |
2864 | ||
2865 | /* Do the HI20 relocation. Note that we actually don't need | |
2866 | to know anything about the LO12 itself, except where to | |
2867 | find the low 12 bits of the addend needed by the LO12. */ | |
2868 | insn = bfd_getb32 (l->addr); | |
2869 | vallo = bfd_getb32 ((bfd_byte *) data + reloc_entry->address); | |
2870 | vallo &= 0xfff; | |
2871 | switch (reloc_entry->howto->type) | |
2872 | { | |
2873 | case R_NDS32_LO12S3: | |
2874 | vallo <<= 3; | |
2875 | break; | |
2876 | ||
2877 | case R_NDS32_LO12S2: | |
2878 | vallo <<= 2; | |
2879 | break; | |
2880 | ||
2881 | case R_NDS32_LO12S1: | |
2882 | vallo <<= 1; | |
2883 | break; | |
2884 | ||
2885 | case R_NDS32_LO12S0: | |
2886 | vallo <<= 0; | |
2887 | break; | |
2888 | } | |
2889 | ||
2890 | val = ((insn & 0xfffff) << 12) + vallo; | |
2891 | val += l->addend; | |
2892 | ||
2893 | insn = (insn & ~(bfd_vma) 0xfffff) | ((val >> 12) & 0xfffff); | |
2894 | bfd_putb32 ((bfd_vma) insn, l->addr); | |
2895 | ||
2896 | next = l->next; | |
2897 | free (l); | |
2898 | l = next; | |
2899 | } | |
2900 | ||
2901 | nds32_hi20_list = NULL; | |
2902 | } | |
2903 | ||
2904 | /* Now do the LO12 reloc in the usual way. | |
2905 | ??? It would be nice to call bfd_elf_generic_reloc here, | |
2906 | but we have partial_inplace set. bfd_elf_generic_reloc will | |
2907 | pass the handling back to bfd_install_relocation which will install | |
2908 | a section relative addend which is wrong. */ | |
2909 | return nds32_elf_generic_reloc (input_bfd, reloc_entry, symbol, data, | |
2910 | input_section, output_bfd, error_message); | |
2911 | } | |
2912 | ||
2913 | /* Do generic partial_inplace relocation. | |
2914 | This is a local replacement for bfd_elf_generic_reloc. */ | |
2915 | ||
2916 | static bfd_reloc_status_type | |
2917 | nds32_elf_generic_reloc (bfd *input_bfd, arelent *reloc_entry, | |
2918 | asymbol *symbol, void *data, asection *input_section, | |
2919 | bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED) | |
2920 | { | |
2921 | bfd_reloc_status_type ret; | |
2922 | bfd_vma relocation; | |
2923 | bfd_byte *inplace_address; | |
2924 | ||
2925 | /* This part is from bfd_elf_generic_reloc. | |
2926 | If we're relocating, and this an external symbol, we don't want | |
2927 | to change anything. */ | |
2928 | if (output_bfd != NULL && (symbol->flags & BSF_SECTION_SYM) == 0 | |
2929 | && reloc_entry->addend == 0) | |
2930 | { | |
2931 | reloc_entry->address += input_section->output_offset; | |
2932 | return bfd_reloc_ok; | |
2933 | } | |
2934 | ||
2935 | /* Now do the reloc in the usual way. | |
2936 | ??? It would be nice to call bfd_elf_generic_reloc here, | |
2937 | but we have partial_inplace set. bfd_elf_generic_reloc will | |
2938 | pass the handling back to bfd_install_relocation which will install | |
2939 | a section relative addend which is wrong. */ | |
2940 | ||
2941 | /* Sanity check the address (offset in section). */ | |
2942 | if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section)) | |
2943 | return bfd_reloc_outofrange; | |
2944 | ||
2945 | ret = bfd_reloc_ok; | |
2946 | if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL) | |
2947 | ret = bfd_reloc_undefined; | |
2948 | ||
2949 | if (bfd_is_com_section (symbol->section) || output_bfd != (bfd *) NULL) | |
2950 | relocation = 0; | |
2951 | else | |
2952 | relocation = symbol->value; | |
2953 | ||
2954 | /* Only do this for a final link. */ | |
2955 | if (output_bfd == (bfd *) NULL) | |
2956 | { | |
2957 | relocation += symbol->section->output_section->vma; | |
2958 | relocation += symbol->section->output_offset; | |
2959 | } | |
2960 | ||
2961 | relocation += reloc_entry->addend; | |
2962 | switch (reloc_entry->howto->type) | |
2963 | { | |
2964 | case R_NDS32_LO12S3: | |
2965 | relocation >>= 3; | |
2966 | break; | |
2967 | ||
2968 | case R_NDS32_LO12S2: | |
2969 | relocation >>= 2; | |
2970 | break; | |
2971 | ||
2972 | case R_NDS32_LO12S1: | |
2973 | relocation >>= 1; | |
2974 | break; | |
2975 | ||
2976 | case R_NDS32_LO12S0: | |
2977 | default: | |
2978 | relocation >>= 0; | |
2979 | break; | |
2980 | } | |
2981 | ||
2982 | inplace_address = (bfd_byte *) data + reloc_entry->address; | |
2983 | ||
2984 | #define DOIT(x) \ | |
2985 | x = ((x & ~reloc_entry->howto->dst_mask) | \ | |
2986 | (((x & reloc_entry->howto->src_mask) + relocation) & \ | |
2987 | reloc_entry->howto->dst_mask)) | |
2988 | ||
57698478 | 2989 | switch (bfd_get_reloc_size (reloc_entry->howto)) |
35c08157 | 2990 | { |
57698478 | 2991 | case 2: |
35c08157 KLC |
2992 | { |
2993 | short x = bfd_getb16 (inplace_address); | |
2994 | ||
2995 | DOIT (x); | |
2996 | bfd_putb16 ((bfd_vma) x, inplace_address); | |
2997 | } | |
2998 | break; | |
57698478 | 2999 | case 4: |
35c08157 KLC |
3000 | { |
3001 | unsigned long x = bfd_getb32 (inplace_address); | |
3002 | ||
3003 | DOIT (x); | |
3004 | bfd_putb32 ((bfd_vma) x, inplace_address); | |
3005 | } | |
3006 | break; | |
3007 | default: | |
3008 | BFD_ASSERT (0); | |
3009 | } | |
3010 | ||
3011 | if (output_bfd != (bfd *) NULL) | |
3012 | reloc_entry->address += input_section->output_offset; | |
3013 | ||
3014 | return ret; | |
3015 | } | |
3016 | ||
3017 | /* Handle the R_NDS32_SDA15 reloc. | |
3018 | This reloc is used to compute the address of objects in the small data area | |
3019 | and to perform loads and stores from that area. | |
3020 | The lower 15 bits are sign extended and added to the register specified | |
3021 | in the instruction, which is assumed to point to _SDA_BASE_. | |
3022 | ||
3023 | Since the lower 15 bits offset is left-shifted 0, 1 or 2 bits depending on | |
3024 | the access size, this must be taken care of. */ | |
3025 | ||
3026 | static bfd_reloc_status_type | |
3027 | nds32_elf_sda15_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, | |
3028 | asymbol *symbol, void *data ATTRIBUTE_UNUSED, | |
3029 | asection *input_section, bfd *output_bfd, | |
3030 | char **error_message ATTRIBUTE_UNUSED) | |
3031 | { | |
3032 | /* This part is from bfd_elf_generic_reloc. */ | |
3033 | if (output_bfd != (bfd *) NULL | |
3034 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
3035 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
3036 | { | |
3037 | reloc_entry->address += input_section->output_offset; | |
3038 | return bfd_reloc_ok; | |
3039 | } | |
3040 | ||
3041 | if (output_bfd != NULL) | |
3042 | { | |
3043 | /* FIXME: See bfd_perform_relocation. Is this right? */ | |
3044 | return bfd_reloc_continue; | |
3045 | } | |
3046 | ||
3047 | /* FIXME: not sure what to do here yet. But then again, the linker | |
3048 | may never call us. */ | |
3049 | abort (); | |
3050 | } | |
3051 | ||
3052 | /* nds32_elf_ignore_reloc is the special function for | |
3053 | relocation types which don't need to be relocated | |
3054 | like relaxation relocation types. | |
3055 | This function simply return bfd_reloc_ok when it is | |
3056 | invoked. */ | |
3057 | ||
3058 | static bfd_reloc_status_type | |
3059 | nds32_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, | |
3060 | asymbol *symbol ATTRIBUTE_UNUSED, | |
3061 | void *data ATTRIBUTE_UNUSED, asection *input_section, | |
3062 | bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED) | |
3063 | { | |
3064 | if (output_bfd != NULL) | |
3065 | reloc_entry->address += input_section->output_offset; | |
3066 | ||
3067 | return bfd_reloc_ok; | |
3068 | } | |
3069 | \f | |
3070 | ||
3071 | /* Map BFD reloc types to NDS32 ELF reloc types. */ | |
3072 | ||
3073 | struct nds32_reloc_map_entry | |
3074 | { | |
3075 | bfd_reloc_code_real_type bfd_reloc_val; | |
3076 | unsigned char elf_reloc_val; | |
3077 | }; | |
3078 | ||
3079 | static const struct nds32_reloc_map_entry nds32_reloc_map[] = | |
3080 | { | |
3081 | {BFD_RELOC_NONE, R_NDS32_NONE}, | |
3082 | {BFD_RELOC_16, R_NDS32_16_RELA}, | |
3083 | {BFD_RELOC_32, R_NDS32_32_RELA}, | |
fbaf61ad NC |
3084 | {BFD_RELOC_VTABLE_INHERIT, R_NDS32_RELA_GNU_VTINHERIT}, |
3085 | {BFD_RELOC_VTABLE_ENTRY, R_NDS32_RELA_GNU_VTENTRY}, | |
3086 | ||
35c08157 | 3087 | {BFD_RELOC_NDS32_20, R_NDS32_20_RELA}, |
35c08157 KLC |
3088 | {BFD_RELOC_NDS32_9_PCREL, R_NDS32_9_PCREL_RELA}, |
3089 | {BFD_RELOC_NDS32_WORD_9_PCREL, R_NDS32_WORD_9_PCREL_RELA}, | |
3090 | {BFD_RELOC_NDS32_15_PCREL, R_NDS32_15_PCREL_RELA}, | |
3091 | {BFD_RELOC_NDS32_17_PCREL, R_NDS32_17_PCREL_RELA}, | |
3092 | {BFD_RELOC_NDS32_25_PCREL, R_NDS32_25_PCREL_RELA}, | |
35c08157 KLC |
3093 | {BFD_RELOC_NDS32_HI20, R_NDS32_HI20_RELA}, |
3094 | {BFD_RELOC_NDS32_LO12S3, R_NDS32_LO12S3_RELA}, | |
3095 | {BFD_RELOC_NDS32_LO12S2, R_NDS32_LO12S2_RELA}, | |
3096 | {BFD_RELOC_NDS32_LO12S1, R_NDS32_LO12S1_RELA}, | |
3097 | {BFD_RELOC_NDS32_LO12S0, R_NDS32_LO12S0_RELA}, | |
3098 | {BFD_RELOC_NDS32_LO12S0_ORI, R_NDS32_LO12S0_ORI_RELA}, | |
3099 | {BFD_RELOC_NDS32_SDA15S3, R_NDS32_SDA15S3_RELA}, | |
3100 | {BFD_RELOC_NDS32_SDA15S2, R_NDS32_SDA15S2_RELA}, | |
3101 | {BFD_RELOC_NDS32_SDA15S1, R_NDS32_SDA15S1_RELA}, | |
3102 | {BFD_RELOC_NDS32_SDA15S0, R_NDS32_SDA15S0_RELA}, | |
fbaf61ad NC |
3103 | {BFD_RELOC_NDS32_SDA16S3, R_NDS32_SDA16S3_RELA}, |
3104 | {BFD_RELOC_NDS32_SDA17S2, R_NDS32_SDA17S2_RELA}, | |
3105 | {BFD_RELOC_NDS32_SDA18S1, R_NDS32_SDA18S1_RELA}, | |
3106 | {BFD_RELOC_NDS32_SDA19S0, R_NDS32_SDA19S0_RELA}, | |
35c08157 KLC |
3107 | {BFD_RELOC_NDS32_GOT20, R_NDS32_GOT20}, |
3108 | {BFD_RELOC_NDS32_9_PLTREL, R_NDS32_9_PLTREL}, | |
3109 | {BFD_RELOC_NDS32_25_PLTREL, R_NDS32_25_PLTREL}, | |
3110 | {BFD_RELOC_NDS32_COPY, R_NDS32_COPY}, | |
3111 | {BFD_RELOC_NDS32_GLOB_DAT, R_NDS32_GLOB_DAT}, | |
3112 | {BFD_RELOC_NDS32_JMP_SLOT, R_NDS32_JMP_SLOT}, | |
3113 | {BFD_RELOC_NDS32_RELATIVE, R_NDS32_RELATIVE}, | |
3114 | {BFD_RELOC_NDS32_GOTOFF, R_NDS32_GOTOFF}, | |
fbaf61ad NC |
3115 | {BFD_RELOC_NDS32_GOTOFF_HI20, R_NDS32_GOTOFF_HI20}, |
3116 | {BFD_RELOC_NDS32_GOTOFF_LO12, R_NDS32_GOTOFF_LO12}, | |
35c08157 KLC |
3117 | {BFD_RELOC_NDS32_GOTPC20, R_NDS32_GOTPC20}, |
3118 | {BFD_RELOC_NDS32_GOT_HI20, R_NDS32_GOT_HI20}, | |
3119 | {BFD_RELOC_NDS32_GOT_LO12, R_NDS32_GOT_LO12}, | |
35c08157 KLC |
3120 | {BFD_RELOC_NDS32_GOTPC_HI20, R_NDS32_GOTPC_HI20}, |
3121 | {BFD_RELOC_NDS32_GOTPC_LO12, R_NDS32_GOTPC_LO12}, | |
35c08157 KLC |
3122 | {BFD_RELOC_NDS32_INSN16, R_NDS32_INSN16}, |
3123 | {BFD_RELOC_NDS32_LABEL, R_NDS32_LABEL}, | |
3124 | {BFD_RELOC_NDS32_LONGCALL1, R_NDS32_LONGCALL1}, | |
3125 | {BFD_RELOC_NDS32_LONGCALL2, R_NDS32_LONGCALL2}, | |
3126 | {BFD_RELOC_NDS32_LONGCALL3, R_NDS32_LONGCALL3}, | |
3127 | {BFD_RELOC_NDS32_LONGJUMP1, R_NDS32_LONGJUMP1}, | |
3128 | {BFD_RELOC_NDS32_LONGJUMP2, R_NDS32_LONGJUMP2}, | |
3129 | {BFD_RELOC_NDS32_LONGJUMP3, R_NDS32_LONGJUMP3}, | |
3130 | {BFD_RELOC_NDS32_LOADSTORE, R_NDS32_LOADSTORE}, | |
3131 | {BFD_RELOC_NDS32_9_FIXED, R_NDS32_9_FIXED_RELA}, | |
3132 | {BFD_RELOC_NDS32_15_FIXED, R_NDS32_15_FIXED_RELA}, | |
3133 | {BFD_RELOC_NDS32_17_FIXED, R_NDS32_17_FIXED_RELA}, | |
3134 | {BFD_RELOC_NDS32_25_FIXED, R_NDS32_25_FIXED_RELA}, | |
fbaf61ad NC |
3135 | {BFD_RELOC_NDS32_LONGCALL4, R_NDS32_LONGCALL4}, |
3136 | {BFD_RELOC_NDS32_LONGCALL5, R_NDS32_LONGCALL5}, | |
3137 | {BFD_RELOC_NDS32_LONGCALL6, R_NDS32_LONGCALL6}, | |
3138 | {BFD_RELOC_NDS32_LONGJUMP4, R_NDS32_LONGJUMP4}, | |
3139 | {BFD_RELOC_NDS32_LONGJUMP5, R_NDS32_LONGJUMP5}, | |
3140 | {BFD_RELOC_NDS32_LONGJUMP6, R_NDS32_LONGJUMP6}, | |
3141 | {BFD_RELOC_NDS32_LONGJUMP7, R_NDS32_LONGJUMP7}, | |
35c08157 KLC |
3142 | {BFD_RELOC_NDS32_PLTREL_HI20, R_NDS32_PLTREL_HI20}, |
3143 | {BFD_RELOC_NDS32_PLTREL_LO12, R_NDS32_PLTREL_LO12}, | |
3144 | {BFD_RELOC_NDS32_PLT_GOTREL_HI20, R_NDS32_PLT_GOTREL_HI20}, | |
3145 | {BFD_RELOC_NDS32_PLT_GOTREL_LO12, R_NDS32_PLT_GOTREL_LO12}, | |
35c08157 KLC |
3146 | {BFD_RELOC_NDS32_SDA12S2_DP, R_NDS32_SDA12S2_DP_RELA}, |
3147 | {BFD_RELOC_NDS32_SDA12S2_SP, R_NDS32_SDA12S2_SP_RELA}, | |
3148 | {BFD_RELOC_NDS32_LO12S2_DP, R_NDS32_LO12S2_DP_RELA}, | |
3149 | {BFD_RELOC_NDS32_LO12S2_SP, R_NDS32_LO12S2_SP_RELA}, | |
35c08157 KLC |
3150 | {BFD_RELOC_NDS32_DWARF2_OP1, R_NDS32_DWARF2_OP1_RELA}, |
3151 | {BFD_RELOC_NDS32_DWARF2_OP2, R_NDS32_DWARF2_OP2_RELA}, | |
3152 | {BFD_RELOC_NDS32_DWARF2_LEB, R_NDS32_DWARF2_LEB_RELA}, | |
3153 | {BFD_RELOC_NDS32_UPDATE_TA, R_NDS32_UPDATE_TA_RELA}, | |
fbaf61ad NC |
3154 | {BFD_RELOC_NDS32_PLT_GOTREL_LO20, R_NDS32_PLT_GOTREL_LO20}, |
3155 | {BFD_RELOC_NDS32_PLT_GOTREL_LO15, R_NDS32_PLT_GOTREL_LO15}, | |
3156 | {BFD_RELOC_NDS32_PLT_GOTREL_LO19, R_NDS32_PLT_GOTREL_LO19}, | |
3157 | {BFD_RELOC_NDS32_GOT_LO15, R_NDS32_GOT_LO15}, | |
3158 | {BFD_RELOC_NDS32_GOT_LO19, R_NDS32_GOT_LO19}, | |
3159 | {BFD_RELOC_NDS32_GOTOFF_LO15, R_NDS32_GOTOFF_LO15}, | |
3160 | {BFD_RELOC_NDS32_GOTOFF_LO19, R_NDS32_GOTOFF_LO19}, | |
35c08157 KLC |
3161 | {BFD_RELOC_NDS32_GOT15S2, R_NDS32_GOT15S2_RELA}, |
3162 | {BFD_RELOC_NDS32_GOT17S2, R_NDS32_GOT17S2_RELA}, | |
fbaf61ad NC |
3163 | {BFD_RELOC_NDS32_5, R_NDS32_5_RELA}, |
3164 | {BFD_RELOC_NDS32_10_UPCREL, R_NDS32_10_UPCREL_RELA}, | |
3165 | {BFD_RELOC_NDS32_SDA_FP7U2_RELA, R_NDS32_SDA_FP7U2_RELA}, | |
3166 | {BFD_RELOC_NDS32_RELAX_ENTRY, R_NDS32_RELAX_ENTRY}, | |
3167 | {BFD_RELOC_NDS32_GOT_SUFF, R_NDS32_GOT_SUFF}, | |
3168 | {BFD_RELOC_NDS32_GOTOFF_SUFF, R_NDS32_GOTOFF_SUFF}, | |
3169 | {BFD_RELOC_NDS32_PLT_GOT_SUFF, R_NDS32_PLT_GOT_SUFF}, | |
3170 | {BFD_RELOC_NDS32_MULCALL_SUFF, R_NDS32_MULCALL_SUFF}, | |
35c08157 KLC |
3171 | {BFD_RELOC_NDS32_PTR, R_NDS32_PTR}, |
3172 | {BFD_RELOC_NDS32_PTR_COUNT, R_NDS32_PTR_COUNT}, | |
35c08157 | 3173 | {BFD_RELOC_NDS32_PTR_RESOLVED, R_NDS32_PTR_RESOLVED}, |
35c08157 KLC |
3174 | {BFD_RELOC_NDS32_PLTBLOCK, R_NDS32_PLTBLOCK}, |
3175 | {BFD_RELOC_NDS32_RELAX_REGION_BEGIN, R_NDS32_RELAX_REGION_BEGIN}, | |
3176 | {BFD_RELOC_NDS32_RELAX_REGION_END, R_NDS32_RELAX_REGION_END}, | |
3177 | {BFD_RELOC_NDS32_MINUEND, R_NDS32_MINUEND}, | |
3178 | {BFD_RELOC_NDS32_SUBTRAHEND, R_NDS32_SUBTRAHEND}, | |
35c08157 KLC |
3179 | {BFD_RELOC_NDS32_DIFF8, R_NDS32_DIFF8}, |
3180 | {BFD_RELOC_NDS32_DIFF16, R_NDS32_DIFF16}, | |
3181 | {BFD_RELOC_NDS32_DIFF32, R_NDS32_DIFF32}, | |
3182 | {BFD_RELOC_NDS32_DIFF_ULEB128, R_NDS32_DIFF_ULEB128}, | |
fbaf61ad | 3183 | {BFD_RELOC_NDS32_EMPTY, R_NDS32_EMPTY}, |
35c08157 KLC |
3184 | {BFD_RELOC_NDS32_25_ABS, R_NDS32_25_ABS_RELA}, |
3185 | {BFD_RELOC_NDS32_DATA, R_NDS32_DATA}, | |
3186 | {BFD_RELOC_NDS32_TRAN, R_NDS32_TRAN}, | |
3187 | {BFD_RELOC_NDS32_17IFC_PCREL, R_NDS32_17IFC_PCREL_RELA}, | |
3188 | {BFD_RELOC_NDS32_10IFCU_PCREL, R_NDS32_10IFCU_PCREL_RELA}, | |
fbaf61ad NC |
3189 | /* Not sure. */ |
3190 | {BFD_RELOC_NDS32_TPOFF, R_NDS32_TLS_TPOFF}, | |
3191 | /* Missing: BFD_RELOC_NDS32_GOTTPOFF. */ | |
1c8f6a4d KLC |
3192 | {BFD_RELOC_NDS32_TLS_LE_HI20, R_NDS32_TLS_LE_HI20}, |
3193 | {BFD_RELOC_NDS32_TLS_LE_LO12, R_NDS32_TLS_LE_LO12}, | |
1c8f6a4d KLC |
3194 | {BFD_RELOC_NDS32_TLS_LE_20, R_NDS32_TLS_LE_20}, |
3195 | {BFD_RELOC_NDS32_TLS_LE_15S0, R_NDS32_TLS_LE_15S0}, | |
3196 | {BFD_RELOC_NDS32_TLS_LE_15S1, R_NDS32_TLS_LE_15S1}, | |
3197 | {BFD_RELOC_NDS32_TLS_LE_15S2, R_NDS32_TLS_LE_15S2}, | |
fbaf61ad NC |
3198 | {BFD_RELOC_NDS32_TLS_LE_ADD, R_NDS32_TLS_LE_ADD}, |
3199 | {BFD_RELOC_NDS32_TLS_LE_LS, R_NDS32_TLS_LE_LS}, | |
3200 | {BFD_RELOC_NDS32_TLS_IE_HI20, R_NDS32_TLS_IE_HI20}, | |
3201 | {BFD_RELOC_NDS32_TLS_IE_LO12, R_NDS32_TLS_IE_LO12}, | |
3202 | {BFD_RELOC_NDS32_TLS_IE_LO12S2, R_NDS32_TLS_IE_LO12S2}, | |
3203 | {BFD_RELOC_NDS32_TLS_IEGP_HI20, R_NDS32_TLS_IEGP_HI20}, | |
3204 | {BFD_RELOC_NDS32_TLS_IEGP_LO12, R_NDS32_TLS_IEGP_LO12}, | |
3205 | {BFD_RELOC_NDS32_TLS_IEGP_LO12S2, R_NDS32_TLS_IEGP_LO12S2}, | |
3206 | {BFD_RELOC_NDS32_TLS_IEGP_LW, R_NDS32_TLS_IEGP_LW}, | |
3207 | {BFD_RELOC_NDS32_TLS_DESC, R_NDS32_TLS_DESC}, | |
3208 | {BFD_RELOC_NDS32_TLS_DESC_HI20, R_NDS32_TLS_DESC_HI20}, | |
3209 | {BFD_RELOC_NDS32_TLS_DESC_LO12, R_NDS32_TLS_DESC_LO12}, | |
3210 | {BFD_RELOC_NDS32_TLS_DESC_20, R_NDS32_TLS_DESC_20}, | |
3211 | {BFD_RELOC_NDS32_TLS_DESC_SDA17S2, R_NDS32_TLS_DESC_SDA17S2}, | |
3212 | {BFD_RELOC_NDS32_TLS_DESC_ADD, R_NDS32_TLS_DESC_ADD}, | |
3213 | {BFD_RELOC_NDS32_TLS_DESC_FUNC, R_NDS32_TLS_DESC_FUNC}, | |
3214 | {BFD_RELOC_NDS32_TLS_DESC_CALL, R_NDS32_TLS_DESC_CALL}, | |
3215 | {BFD_RELOC_NDS32_TLS_DESC_MEM, R_NDS32_TLS_DESC_MEM}, | |
3216 | {BFD_RELOC_NDS32_REMOVE, R_NDS32_RELAX_REMOVE}, | |
3217 | {BFD_RELOC_NDS32_GROUP, R_NDS32_RELAX_GROUP}, | |
3218 | {BFD_RELOC_NDS32_LSI, R_NDS32_LSI}, | |
35c08157 KLC |
3219 | }; |
3220 | ||
3221 | /* Patch tag. */ | |
3222 | ||
3223 | static reloc_howto_type * | |
3224 | bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
3225 | const char *r_name) | |
3226 | { | |
3227 | unsigned int i; | |
3228 | ||
3229 | for (i = 0; i < ARRAY_SIZE (nds32_elf_howto_table); i++) | |
3230 | if (nds32_elf_howto_table[i].name != NULL | |
3231 | && strcasecmp (nds32_elf_howto_table[i].name, r_name) == 0) | |
3232 | return &nds32_elf_howto_table[i]; | |
3233 | ||
3234 | for (i = 0; i < ARRAY_SIZE (nds32_elf_relax_howto_table); i++) | |
3235 | if (nds32_elf_relax_howto_table[i].name != NULL | |
3236 | && strcasecmp (nds32_elf_relax_howto_table[i].name, r_name) == 0) | |
3237 | return &nds32_elf_relax_howto_table[i]; | |
3238 | ||
3239 | return NULL; | |
3240 | } | |
3241 | ||
3242 | static reloc_howto_type * | |
a379e758 | 3243 | bfd_elf32_bfd_reloc_type_table_lookup (unsigned int code) |
35c08157 KLC |
3244 | { |
3245 | if (code < R_NDS32_RELAX_ENTRY) | |
3246 | { | |
a379e758 AM |
3247 | if (code < ARRAY_SIZE (nds32_elf_howto_table)) |
3248 | return &nds32_elf_howto_table[code]; | |
35c08157 KLC |
3249 | } |
3250 | else | |
3251 | { | |
a379e758 AM |
3252 | if (code - R_NDS32_RELAX_ENTRY < ARRAY_SIZE (nds32_elf_relax_howto_table)) |
3253 | return &nds32_elf_relax_howto_table[code - R_NDS32_RELAX_ENTRY]; | |
35c08157 | 3254 | } |
a379e758 | 3255 | return NULL; |
35c08157 KLC |
3256 | } |
3257 | ||
3258 | static reloc_howto_type * | |
3259 | bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
3260 | bfd_reloc_code_real_type code) | |
3261 | { | |
3262 | unsigned int i; | |
3263 | ||
3264 | for (i = 0; i < ARRAY_SIZE (nds32_reloc_map); i++) | |
3265 | { | |
3266 | if (nds32_reloc_map[i].bfd_reloc_val == code) | |
3267 | return bfd_elf32_bfd_reloc_type_table_lookup | |
fbaf61ad | 3268 | (nds32_reloc_map[i].elf_reloc_val); |
35c08157 KLC |
3269 | } |
3270 | ||
3271 | return NULL; | |
3272 | } | |
3273 | ||
3274 | /* Set the howto pointer for an NDS32 ELF reloc. */ | |
3275 | ||
0a1b45a2 | 3276 | static bool |
f3185997 | 3277 | nds32_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, |
35c08157 KLC |
3278 | Elf_Internal_Rela *dst) |
3279 | { | |
a379e758 | 3280 | unsigned int r_type = ELF32_R_TYPE (dst->r_info); |
35c08157 | 3281 | |
a379e758 AM |
3282 | cache_ptr->howto = NULL; |
3283 | if (r_type <= R_NDS32_GNU_VTENTRY) | |
3284 | cache_ptr->howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type); | |
3285 | if (cache_ptr->howto == NULL || cache_ptr->howto->name == NULL) | |
5860e3f8 | 3286 | { |
695344c0 | 3287 | /* xgettext:c-format */ |
0aa13fee AM |
3288 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
3289 | abfd, r_type); | |
f3185997 | 3290 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 3291 | return false; |
5860e3f8 | 3292 | } |
0a1b45a2 | 3293 | return true; |
35c08157 KLC |
3294 | } |
3295 | ||
0a1b45a2 | 3296 | static bool |
a379e758 | 3297 | nds32_info_to_howto (bfd *abfd, arelent *cache_ptr, |
35c08157 KLC |
3298 | Elf_Internal_Rela *dst) |
3299 | { | |
f3185997 NC |
3300 | unsigned int r_type = ELF32_R_TYPE (dst->r_info); |
3301 | ||
a379e758 AM |
3302 | cache_ptr->howto = NULL; |
3303 | if (r_type == R_NDS32_NONE | |
3304 | || r_type > R_NDS32_GNU_VTENTRY) | |
3305 | cache_ptr->howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type); | |
3306 | if (cache_ptr->howto == NULL || cache_ptr->howto->name == NULL) | |
f3185997 | 3307 | { |
a379e758 AM |
3308 | /* xgettext:c-format */ |
3309 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), | |
3310 | abfd, r_type); | |
3311 | bfd_set_error (bfd_error_bad_value); | |
3312 | return false; | |
f3185997 | 3313 | } |
a379e758 | 3314 | return true; |
35c08157 KLC |
3315 | } |
3316 | ||
3317 | /* Support for core dump NOTE sections. | |
3318 | Reference to include/linux/elfcore.h in Linux. */ | |
3319 | ||
0a1b45a2 | 3320 | static bool |
35c08157 KLC |
3321 | nds32_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
3322 | { | |
3323 | int offset; | |
3324 | size_t size; | |
3325 | ||
3326 | switch (note->descsz) | |
3327 | { | |
3328 | case 0x114: | |
fbaf61ad | 3329 | /* Linux/NDS32 32-bit, ABI1. */ |
35c08157 KLC |
3330 | |
3331 | /* pr_cursig */ | |
3332 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); | |
3333 | ||
3334 | /* pr_pid */ | |
3335 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24); | |
3336 | ||
3337 | /* pr_reg */ | |
3338 | offset = 72; | |
3339 | size = 200; | |
3340 | break; | |
3341 | ||
3342 | case 0xfc: | |
fbaf61ad | 3343 | /* Linux/NDS32 32-bit. */ |
35c08157 KLC |
3344 | |
3345 | /* pr_cursig */ | |
3346 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); | |
3347 | ||
3348 | /* pr_pid */ | |
3349 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24); | |
3350 | ||
3351 | /* pr_reg */ | |
3352 | offset = 72; | |
3353 | size = 176; | |
3354 | break; | |
3355 | ||
3356 | default: | |
0a1b45a2 | 3357 | return false; |
35c08157 KLC |
3358 | } |
3359 | ||
3360 | /* Make a ".reg" section. */ | |
3361 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
3362 | size, note->descpos + offset); | |
3363 | } | |
3364 | ||
0a1b45a2 | 3365 | static bool |
35c08157 KLC |
3366 | nds32_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
3367 | { | |
3368 | switch (note->descsz) | |
3369 | { | |
3370 | case 124: | |
fbaf61ad | 3371 | /* Linux/NDS32. */ |
35c08157 KLC |
3372 | |
3373 | /* __kernel_uid_t, __kernel_gid_t are short on NDS32 platform. */ | |
3374 | elf_tdata (abfd)->core->program = | |
3375 | _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
3376 | elf_tdata (abfd)->core->command = | |
3377 | _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
2b804145 | 3378 | break; |
35c08157 KLC |
3379 | |
3380 | default: | |
0a1b45a2 | 3381 | return false; |
35c08157 KLC |
3382 | } |
3383 | ||
3384 | /* Note that for some reason, a spurious space is tacked | |
3385 | onto the end of the args in some (at least one anyway) | |
3386 | implementations, so strip it off if it exists. */ | |
3387 | { | |
3388 | char *command = elf_tdata (abfd)->core->command; | |
3389 | int n = strlen (command); | |
3390 | ||
3391 | if (0 < n && command[n - 1] == ' ') | |
3392 | command[n - 1] = '\0'; | |
3393 | } | |
3394 | ||
0a1b45a2 | 3395 | return true; |
35c08157 KLC |
3396 | } |
3397 | ||
3398 | /* Hook called by the linker routine which adds symbols from an object | |
3399 | file. We must handle the special NDS32 section numbers here. | |
3400 | We also keep watching for whether we need to create the sdata special | |
3401 | linker sections. */ | |
3402 | ||
0a1b45a2 | 3403 | static bool |
35c08157 KLC |
3404 | nds32_elf_add_symbol_hook (bfd *abfd, |
3405 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
3406 | Elf_Internal_Sym *sym, | |
3407 | const char **namep ATTRIBUTE_UNUSED, | |
3408 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3409 | asection **secp, bfd_vma *valp) | |
3410 | { | |
3411 | switch (sym->st_shndx) | |
3412 | { | |
3413 | case SHN_COMMON: | |
3414 | /* Common symbols less than the GP size are automatically | |
3415 | treated as SHN_MIPS_SCOMMON symbols. */ | |
3416 | if (sym->st_size > elf_gp_size (abfd) | |
3417 | || ELF_ST_TYPE (sym->st_info) == STT_TLS) | |
3418 | break; | |
3419 | ||
10885e24 | 3420 | /* st_value is the alignment constraint. |
35c08157 KLC |
3421 | That might be its actual size if it is an array or structure. */ |
3422 | switch (sym->st_value) | |
3423 | { | |
3424 | case 1: | |
3425 | *secp = bfd_make_section_old_way (abfd, ".scommon_b"); | |
3426 | break; | |
3427 | case 2: | |
3428 | *secp = bfd_make_section_old_way (abfd, ".scommon_h"); | |
3429 | break; | |
3430 | case 4: | |
3431 | *secp = bfd_make_section_old_way (abfd, ".scommon_w"); | |
3432 | break; | |
3433 | case 8: | |
3434 | *secp = bfd_make_section_old_way (abfd, ".scommon_d"); | |
3435 | break; | |
3436 | default: | |
0a1b45a2 | 3437 | return true; |
35c08157 KLC |
3438 | } |
3439 | ||
10885e24 | 3440 | (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA; |
35c08157 KLC |
3441 | *valp = sym->st_size; |
3442 | break; | |
3443 | } | |
3444 | ||
0a1b45a2 | 3445 | return true; |
35c08157 KLC |
3446 | } |
3447 | ||
35c08157 KLC |
3448 | /* This function can figure out the best location for a base register to access |
3449 | data relative to this base register | |
3450 | INPUT: | |
3451 | sda_d0: size of first DOUBLE WORD data section | |
3452 | sda_w0: size of first WORD data section | |
3453 | sda_h0: size of first HALF WORD data section | |
3454 | sda_b : size of BYTE data section | |
3455 | sda_hi: size of second HALF WORD data section | |
3456 | sda_w1: size of second WORD data section | |
3457 | sda_d1: size of second DOUBLE WORD data section | |
3458 | OUTPUT: | |
3459 | offset (always positive) from the beginning of sda_d0 if OK | |
3460 | a negative error value if fail | |
3461 | NOTE: | |
3462 | these 7 sections have to be located back to back if exist | |
3463 | a pass in 0 value for non-existing section */ | |
3464 | ||
3465 | /* Due to the interpretation of simm15 field of load/store depending on | |
3466 | data accessing size, the organization of base register relative data shall | |
3467 | like the following figure | |
3468 | ------------------------------------------- | |
3469 | | DOUBLE WORD sized data (range +/- 128K) | |
3470 | ------------------------------------------- | |
3471 | | WORD sized data (range +/- 64K) | |
3472 | ------------------------------------------- | |
3473 | | HALF WORD sized data (range +/- 32K) | |
3474 | ------------------------------------------- | |
3475 | | BYTE sized data (range +/- 16K) | |
3476 | ------------------------------------------- | |
3477 | | HALF WORD sized data (range +/- 32K) | |
3478 | ------------------------------------------- | |
3479 | | WORD sized data (range +/- 64K) | |
3480 | ------------------------------------------- | |
3481 | | DOUBLE WORD sized data (range +/- 128K) | |
3482 | ------------------------------------------- | |
3483 | Its base register shall be set to access these data freely. */ | |
3484 | ||
3485 | /* We have to figure out the SDA_BASE value, so that we can adjust the | |
3486 | symbol value correctly. We look up the symbol _SDA_BASE_ in the output | |
3487 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
3488 | target data. We don't need to adjust the symbol value for an | |
3489 | external symbol if we are producing relocatable output. */ | |
3490 | ||
3491 | static asection *sda_rela_sec = NULL; | |
3492 | ||
1c8f6a4d | 3493 | #define SDA_SECTION_NUM 10 |
35c08157 KLC |
3494 | |
3495 | static bfd_reloc_status_type | |
0a1b45a2 AM |
3496 | nds32_elf_final_sda_base (bfd *output_bfd, |
3497 | struct bfd_link_info *info, | |
3498 | bfd_vma *psb, | |
3499 | bool add_symbol) | |
35c08157 KLC |
3500 | { |
3501 | int relax_fp_as_gp; | |
3502 | struct elf_nds32_link_hash_table *table; | |
3503 | struct bfd_link_hash_entry *h, *h2; | |
1c8f6a4d | 3504 | long unsigned int total = 0; |
fbaf61ad NC |
3505 | asection *first = NULL, *final = NULL, *temp; |
3506 | bfd_vma sda_base = 0; | |
35c08157 | 3507 | |
0a1b45a2 | 3508 | h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", false, false, true); |
fbaf61ad NC |
3509 | if (!h || (h->type != bfd_link_hash_defined |
3510 | && h->type != bfd_link_hash_defweak)) | |
35c08157 | 3511 | { |
35c08157 KLC |
3512 | /* The first section must be 4-byte aligned to promise _SDA_BASE_ being |
3513 | 4 byte-aligned. Therefore, it has to set the first section ".data" | |
3514 | 4 byte-aligned. */ | |
3515 | static const char sec_name[SDA_SECTION_NUM][10] = | |
3516 | { | |
3517 | ".data", ".got", ".sdata_d", ".sdata_w", ".sdata_h", ".sdata_b", | |
1c8f6a4d | 3518 | ".sbss_b", ".sbss_h", ".sbss_w", ".sbss_d" |
35c08157 KLC |
3519 | }; |
3520 | size_t i = 0; | |
3521 | ||
3522 | if (output_bfd->sections == NULL) | |
3523 | { | |
3524 | *psb = elf_gp (output_bfd); | |
3525 | return bfd_reloc_ok; | |
3526 | } | |
3527 | ||
3528 | /* Get the first and final section. */ | |
fbaf61ad | 3529 | while (i < ARRAY_SIZE (sec_name)) |
35c08157 KLC |
3530 | { |
3531 | temp = bfd_get_section_by_name (output_bfd, sec_name[i]); | |
3532 | if (temp && !first && (temp->size != 0 || temp->rawsize != 0)) | |
3533 | first = temp; | |
3534 | if (temp && (temp->size != 0 || temp->rawsize != 0)) | |
3535 | final = temp; | |
1c8f6a4d KLC |
3536 | |
3537 | /* Summarize the sections in order to check if joining .bss. */ | |
3538 | if (temp && temp->size != 0) | |
3539 | total += temp->size; | |
3540 | else if (temp && temp->rawsize != 0) | |
3541 | total += temp->rawsize; | |
3542 | ||
35c08157 KLC |
3543 | i++; |
3544 | } | |
3545 | ||
1c8f6a4d KLC |
3546 | /* Check .bss size. */ |
3547 | temp = bfd_get_section_by_name (output_bfd, ".bss"); | |
3548 | if (temp) | |
3549 | { | |
3550 | if (temp->size != 0) | |
3551 | total += temp->size; | |
3552 | else if (temp->rawsize != 0) | |
3553 | total += temp->rawsize; | |
3554 | ||
3555 | if (total < 0x80000) | |
3556 | { | |
3557 | if (!first && (temp->size != 0 || temp->rawsize != 0)) | |
3558 | first = temp; | |
3559 | if ((temp->size != 0 || temp->rawsize != 0)) | |
3560 | final = temp; | |
3561 | } | |
3562 | } | |
3563 | ||
35c08157 KLC |
3564 | if (first && final) |
3565 | { | |
3566 | /* The middle of data region. */ | |
1c8f6a4d | 3567 | sda_base = final->vma / 2 + final->rawsize / 2 + first->vma / 2; |
35c08157 KLC |
3568 | |
3569 | /* Find the section sda_base located. */ | |
3570 | i = 0; | |
fbaf61ad | 3571 | while (i < ARRAY_SIZE (sec_name)) |
35c08157 KLC |
3572 | { |
3573 | final = bfd_get_section_by_name (output_bfd, sec_name[i]); | |
3574 | if (final && (final->size != 0 || final->rawsize != 0) | |
3575 | && sda_base >= final->vma) | |
3576 | { | |
3577 | first = final; | |
3578 | i++; | |
3579 | } | |
3580 | else | |
3581 | break; | |
3582 | } | |
3583 | } | |
3584 | else | |
3585 | { | |
fbaf61ad NC |
3586 | /* If there is not any default data section in output bfd, try to find |
3587 | the first data section. If no data section be found, just simplily | |
3588 | choose the first output section. */ | |
3589 | temp = output_bfd->sections; | |
3590 | while (temp) | |
3591 | { | |
3592 | if (temp->flags & SEC_ALLOC | |
3593 | && (((temp->flags & SEC_DATA) | |
3594 | && ((temp->flags & SEC_READONLY) == 0)) | |
3595 | || (temp->flags & SEC_LOAD) == 0) | |
3596 | && (temp->size != 0 || temp->rawsize != 0)) | |
3597 | { | |
3598 | if (!first) | |
3599 | first = temp; | |
3600 | final = temp; | |
3601 | } | |
3602 | temp = temp->next; | |
3603 | } | |
3604 | ||
3605 | /* There is no data or bss section. */ | |
3606 | if (!first || (first->size == 0 && first->rawsize == 0)) | |
3607 | { | |
3608 | first = output_bfd->sections; | |
3609 | while (first && first->size == 0 && first->rawsize == 0) | |
3610 | first = first->next; | |
3611 | } | |
3612 | ||
3613 | /* There is no concrete section. */ | |
35c08157 KLC |
3614 | if (!first) |
3615 | { | |
3616 | *psb = elf_gp (output_bfd); | |
3617 | return bfd_reloc_ok; | |
3618 | } | |
fbaf61ad NC |
3619 | |
3620 | if (final && (final->vma + final->rawsize - first->vma) <= 0x4000) | |
3621 | sda_base = final->vma / 2 + final->rawsize / 2 + first->vma / 2; | |
3622 | else | |
3623 | sda_base = first->vma + 0x2000; | |
35c08157 KLC |
3624 | } |
3625 | ||
3626 | sda_base -= first->vma; | |
3627 | sda_base = sda_base & (~7); | |
3628 | ||
3629 | if (!_bfd_generic_link_add_one_symbol | |
fbaf61ad | 3630 | (info, output_bfd, "_SDA_BASE_", BSF_GLOBAL | BSF_WEAK, first, |
0a1b45a2 | 3631 | (bfd_vma) sda_base, (const char *) NULL, false, |
fbaf61ad | 3632 | get_elf_backend_data (output_bfd)->collect, &h)) |
0a1b45a2 | 3633 | return false; |
35c08157 KLC |
3634 | |
3635 | sda_rela_sec = first; | |
fbaf61ad | 3636 | } |
35c08157 | 3637 | |
fbaf61ad NC |
3638 | /* Set _FP_BASE_ to _SDA_BASE_. */ |
3639 | table = nds32_elf_hash_table (info); | |
3640 | relax_fp_as_gp = table->relax_fp_as_gp; | |
0a1b45a2 | 3641 | h2 = bfd_link_hash_lookup (info->hash, FP_BASE_NAME, false, false, false); |
fbaf61ad NC |
3642 | /* _SDA_BASE_ is difined in linker script. */ |
3643 | if (!first) | |
3644 | { | |
3645 | first = h->u.def.section; | |
3646 | sda_base = h->u.def.value; | |
3647 | } | |
3648 | ||
3649 | if (relax_fp_as_gp && h2 | |
3650 | && (h2->type == bfd_link_hash_undefweak | |
3651 | || h2->type == bfd_link_hash_undefined)) | |
3652 | { | |
3653 | /* Define a weak FP_BASE_NAME here to prevent the undefined symbol. | |
3654 | And set FP equal to SDA_BASE to do relaxation for | |
3655 | la $fp, _FP_BASE_. */ | |
3656 | if (!_bfd_generic_link_add_one_symbol | |
3657 | (info, output_bfd, FP_BASE_NAME, BSF_GLOBAL | BSF_WEAK, | |
3658 | first, sda_base, (const char *) NULL, | |
0a1b45a2 AM |
3659 | false, get_elf_backend_data (output_bfd)->collect, &h2)) |
3660 | return false; | |
35c08157 KLC |
3661 | } |
3662 | ||
535b785f | 3663 | if (add_symbol) |
35c08157 KLC |
3664 | { |
3665 | if (h) | |
3666 | { | |
3667 | /* Now set gp. */ | |
3668 | elf_gp (output_bfd) = (h->u.def.value | |
3669 | + h->u.def.section->output_section->vma | |
3670 | + h->u.def.section->output_offset); | |
3671 | } | |
3672 | else | |
3673 | { | |
38f14ab8 | 3674 | _bfd_error_handler (_("error: can't find symbol: %s"), "_SDA_BASE_"); |
35c08157 KLC |
3675 | return bfd_reloc_dangerous; |
3676 | } | |
3677 | } | |
3678 | ||
fbaf61ad NC |
3679 | *psb = h->u.def.value |
3680 | + h->u.def.section->output_section->vma | |
3681 | + h->u.def.section->output_offset; | |
35c08157 KLC |
3682 | return bfd_reloc_ok; |
3683 | } | |
3684 | \f | |
3685 | ||
3686 | /* Return size of a PLT entry. */ | |
3687 | #define elf_nds32_sizeof_plt(info) PLT_ENTRY_SIZE | |
3688 | ||
35c08157 KLC |
3689 | /* Create an entry in an nds32 ELF linker hash table. */ |
3690 | ||
3691 | static struct bfd_hash_entry * | |
3692 | nds32_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
3693 | struct bfd_hash_table *table, | |
3694 | const char *string) | |
3695 | { | |
3696 | struct elf_nds32_link_hash_entry *ret; | |
3697 | ||
3698 | ret = (struct elf_nds32_link_hash_entry *) entry; | |
3699 | ||
3700 | /* Allocate the structure if it has not already been allocated by a | |
3701 | subclass. */ | |
3702 | if (ret == NULL) | |
3703 | ret = (struct elf_nds32_link_hash_entry *) | |
3704 | bfd_hash_allocate (table, sizeof (struct elf_nds32_link_hash_entry)); | |
3705 | ||
3706 | if (ret == NULL) | |
3707 | return (struct bfd_hash_entry *) ret; | |
3708 | ||
3709 | /* Call the allocation method of the superclass. */ | |
3710 | ret = (struct elf_nds32_link_hash_entry *) | |
3711 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string); | |
3712 | ||
3713 | if (ret != NULL) | |
3714 | { | |
3715 | struct elf_nds32_link_hash_entry *eh; | |
3716 | ||
3717 | eh = (struct elf_nds32_link_hash_entry *) ret; | |
1c8f6a4d | 3718 | eh->tls_type = GOT_UNKNOWN; |
fbaf61ad | 3719 | eh->offset_to_gp = 0; |
35c08157 KLC |
3720 | } |
3721 | ||
3722 | return (struct bfd_hash_entry *) ret; | |
3723 | } | |
3724 | ||
3725 | /* Create an nds32 ELF linker hash table. */ | |
3726 | ||
3727 | static struct bfd_link_hash_table * | |
3728 | nds32_elf_link_hash_table_create (bfd *abfd) | |
3729 | { | |
3730 | struct elf_nds32_link_hash_table *ret; | |
3731 | ||
986f0783 | 3732 | size_t amt = sizeof (struct elf_nds32_link_hash_table); |
35c08157 KLC |
3733 | |
3734 | ret = (struct elf_nds32_link_hash_table *) bfd_zmalloc (amt); | |
3735 | if (ret == NULL) | |
3736 | return NULL; | |
3737 | ||
fbaf61ad | 3738 | /* Patch tag. */ |
35c08157 KLC |
3739 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
3740 | nds32_elf_link_hash_newfunc, | |
3741 | sizeof (struct elf_nds32_link_hash_entry), | |
3742 | NDS32_ELF_DATA)) | |
3743 | { | |
3744 | free (ret); | |
3745 | return NULL; | |
3746 | } | |
3747 | ||
fbaf61ad NC |
3748 | ret->sym_ld_script = NULL; |
3749 | ||
35c08157 KLC |
3750 | return &ret->root.root; |
3751 | } | |
3752 | ||
fbaf61ad NC |
3753 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up |
3754 | shortcuts to them in our hash table. */ | |
3755 | ||
0a1b45a2 | 3756 | static bool |
fbaf61ad NC |
3757 | create_got_section (bfd *dynobj, struct bfd_link_info *info) |
3758 | { | |
3759 | struct elf_link_hash_table *ehtab; | |
3760 | ||
3761 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
0a1b45a2 | 3762 | return false; |
fbaf61ad NC |
3763 | |
3764 | ehtab = elf_hash_table (info); | |
3765 | ehtab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
3766 | ehtab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
3767 | if (!ehtab->sgot || !ehtab->sgotplt) | |
3768 | abort (); | |
3769 | ||
3770 | /* _bfd_elf_create_got_section will create it for us. */ | |
3771 | ehtab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
3772 | if (ehtab->srelgot == NULL | |
fd361982 | 3773 | || !bfd_set_section_flags (ehtab->srelgot, |
fbaf61ad NC |
3774 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
3775 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
3776 | | SEC_READONLY)) | |
fd361982 | 3777 | || !bfd_set_section_alignment (ehtab->srelgot, 2)) |
0a1b45a2 | 3778 | return false; |
fbaf61ad | 3779 | |
0a1b45a2 | 3780 | return true; |
fbaf61ad NC |
3781 | } |
3782 | ||
35c08157 KLC |
3783 | /* Create dynamic sections when linking against a dynamic object. */ |
3784 | ||
0a1b45a2 | 3785 | static bool |
35c08157 KLC |
3786 | nds32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
3787 | { | |
fbaf61ad | 3788 | struct elf_link_hash_table *ehtab; |
35c08157 KLC |
3789 | struct elf_nds32_link_hash_table *htab; |
3790 | flagword flags, pltflags; | |
3791 | register asection *s; | |
3792 | const struct elf_backend_data *bed; | |
3793 | int ptralign = 2; /* 32-bit */ | |
fbaf61ad NC |
3794 | const char *secname; |
3795 | char *relname; | |
3796 | flagword secflags; | |
3797 | asection *sec; | |
35c08157 KLC |
3798 | |
3799 | bed = get_elf_backend_data (abfd); | |
fbaf61ad | 3800 | ehtab = elf_hash_table (info); |
35c08157 KLC |
3801 | htab = nds32_elf_hash_table (info); |
3802 | ||
3803 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
3804 | .rel[a].bss sections. */ | |
3805 | ||
3806 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3807 | | SEC_LINKER_CREATED); | |
3808 | ||
3809 | pltflags = flags; | |
3810 | pltflags |= SEC_CODE; | |
3811 | if (bed->plt_not_loaded) | |
3812 | pltflags &= ~(SEC_LOAD | SEC_HAS_CONTENTS); | |
3813 | if (bed->plt_readonly) | |
3814 | pltflags |= SEC_READONLY; | |
3815 | ||
3816 | s = bfd_make_section (abfd, ".plt"); | |
fbaf61ad | 3817 | ehtab->splt = s; |
35c08157 | 3818 | if (s == NULL |
fd361982 AM |
3819 | || !bfd_set_section_flags (s, pltflags) |
3820 | || !bfd_set_section_alignment (s, bed->plt_alignment)) | |
0a1b45a2 | 3821 | return false; |
35c08157 KLC |
3822 | |
3823 | if (bed->want_plt_sym) | |
3824 | { | |
3825 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
3826 | .plt section. */ | |
3827 | struct bfd_link_hash_entry *bh = NULL; | |
3828 | struct elf_link_hash_entry *h; | |
3829 | ||
3830 | if (!(_bfd_generic_link_add_one_symbol | |
3831 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, | |
0a1b45a2 | 3832 | (bfd_vma) 0, (const char *) NULL, false, |
35c08157 | 3833 | get_elf_backend_data (abfd)->collect, &bh))) |
0a1b45a2 | 3834 | return false; |
35c08157 KLC |
3835 | |
3836 | h = (struct elf_link_hash_entry *) bh; | |
3837 | h->def_regular = 1; | |
3838 | h->type = STT_OBJECT; | |
3839 | ||
0e1862bb | 3840 | if (bfd_link_pic (info) && !bfd_elf_link_record_dynamic_symbol (info, h)) |
0a1b45a2 | 3841 | return false; |
35c08157 KLC |
3842 | } |
3843 | ||
3844 | s = bfd_make_section (abfd, | |
3845 | bed->default_use_rela_p ? ".rela.plt" : ".rel.plt"); | |
fbaf61ad | 3846 | ehtab->srelplt = s; |
35c08157 | 3847 | if (s == NULL |
fd361982 AM |
3848 | || !bfd_set_section_flags (s, flags | SEC_READONLY) |
3849 | || !bfd_set_section_alignment (s, ptralign)) | |
0a1b45a2 | 3850 | return false; |
35c08157 | 3851 | |
fbaf61ad | 3852 | if (ehtab->sgot == NULL && !create_got_section (abfd, info)) |
0a1b45a2 | 3853 | return false; |
35c08157 | 3854 | |
fbaf61ad NC |
3855 | for (sec = abfd->sections; sec; sec = sec->next) |
3856 | { | |
fd361982 | 3857 | secflags = bfd_section_flags (sec); |
fbaf61ad NC |
3858 | if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) |
3859 | || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) | |
3860 | continue; | |
fd361982 | 3861 | secname = bfd_section_name (sec); |
fbaf61ad NC |
3862 | relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6); |
3863 | strcpy (relname, ".rela"); | |
3864 | strcat (relname, secname); | |
3865 | if (bfd_get_section_by_name (abfd, secname)) | |
3866 | continue; | |
3867 | s = bfd_make_section (abfd, relname); | |
3868 | if (s == NULL | |
fd361982 AM |
3869 | || !bfd_set_section_flags (s, flags | SEC_READONLY) |
3870 | || !bfd_set_section_alignment (s, ptralign)) | |
0a1b45a2 | 3871 | return false; |
fbaf61ad | 3872 | } |
35c08157 KLC |
3873 | |
3874 | if (bed->want_dynbss) | |
3875 | { | |
3876 | /* The .dynbss section is a place to put symbols which are defined | |
3877 | by dynamic objects, are referenced by regular objects, and are | |
3878 | not functions. We must allocate space for them in the process | |
3879 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
3880 | initialize them at run time. The linker script puts the .dynbss | |
3881 | section into the .bss section of the final image. */ | |
3882 | s = bfd_make_section (abfd, ".dynbss"); | |
f1dfbfdb | 3883 | htab->root.sdynbss = s; |
35c08157 | 3884 | if (s == NULL |
fd361982 | 3885 | || !bfd_set_section_flags (s, SEC_ALLOC | SEC_LINKER_CREATED)) |
0a1b45a2 | 3886 | return false; |
35c08157 KLC |
3887 | /* The .rel[a].bss section holds copy relocs. This section is not |
3888 | normally needed. We need to create it here, though, so that the | |
3889 | linker will map it to an output section. We can't just create it | |
3890 | only if we need it, because we will not know whether we need it | |
3891 | until we have seen all the input files, and the first time the | |
3892 | main linker code calls BFD after examining all the input files | |
3893 | (size_dynamic_sections) the input sections have already been | |
3894 | mapped to the output sections. If the section turns out not to | |
3895 | be needed, we can discard it later. We will never need this | |
3896 | section when generating a shared object, since they do not use | |
3897 | copy relocs. */ | |
0e1862bb | 3898 | if (!bfd_link_pic (info)) |
35c08157 KLC |
3899 | { |
3900 | s = bfd_make_section (abfd, (bed->default_use_rela_p | |
3901 | ? ".rela.bss" : ".rel.bss")); | |
f1dfbfdb | 3902 | htab->root.srelbss = s; |
35c08157 | 3903 | if (s == NULL |
fd361982 AM |
3904 | || !bfd_set_section_flags (s, flags | SEC_READONLY) |
3905 | || !bfd_set_section_alignment (s, ptralign)) | |
0a1b45a2 | 3906 | return false; |
35c08157 KLC |
3907 | } |
3908 | } | |
3909 | ||
0a1b45a2 | 3910 | return true; |
35c08157 KLC |
3911 | } |
3912 | ||
3913 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
3914 | static void | |
3915 | nds32_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
3916 | struct elf_link_hash_entry *dir, | |
3917 | struct elf_link_hash_entry *ind) | |
3918 | { | |
3919 | struct elf_nds32_link_hash_entry *edir, *eind; | |
3920 | ||
3921 | edir = (struct elf_nds32_link_hash_entry *) dir; | |
3922 | eind = (struct elf_nds32_link_hash_entry *) ind; | |
3923 | ||
fbaf61ad NC |
3924 | if (ind->root.type == bfd_link_hash_indirect) |
3925 | { | |
3926 | if (dir->got.refcount <= 0) | |
3927 | { | |
3928 | edir->tls_type = eind->tls_type; | |
3929 | eind->tls_type = GOT_UNKNOWN; | |
3930 | } | |
3931 | } | |
3932 | ||
35c08157 KLC |
3933 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
3934 | } | |
3935 | \f | |
35c08157 KLC |
3936 | /* Adjust a symbol defined by a dynamic object and referenced by a |
3937 | regular object. The current definition is in some section of the | |
3938 | dynamic object, but we're not including those sections. We have to | |
3939 | change the definition to something the rest of the link can | |
3940 | understand. */ | |
3941 | ||
0a1b45a2 | 3942 | static bool |
35c08157 KLC |
3943 | nds32_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
3944 | struct elf_link_hash_entry *h) | |
3945 | { | |
3946 | struct elf_nds32_link_hash_table *htab; | |
35c08157 KLC |
3947 | bfd *dynobj; |
3948 | asection *s; | |
3949 | unsigned int power_of_two; | |
3950 | ||
3951 | dynobj = elf_hash_table (info)->dynobj; | |
3952 | ||
3953 | /* Make sure we know what is going on here. */ | |
3954 | BFD_ASSERT (dynobj != NULL | |
3955 | && (h->needs_plt | |
60d67dc8 | 3956 | || h->is_weakalias |
35c08157 KLC |
3957 | || (h->def_dynamic && h->ref_regular && !h->def_regular))); |
3958 | ||
3959 | ||
3960 | /* If this is a function, put it in the procedure linkage table. We | |
3961 | will fill in the contents of the procedure linkage table later, | |
3962 | when we know the address of the .got section. */ | |
3963 | if (h->type == STT_FUNC || h->needs_plt) | |
3964 | { | |
0e1862bb | 3965 | if (!bfd_link_pic (info) |
35c08157 KLC |
3966 | && !h->def_dynamic |
3967 | && !h->ref_dynamic | |
3968 | && h->root.type != bfd_link_hash_undefweak | |
3969 | && h->root.type != bfd_link_hash_undefined) | |
3970 | { | |
3971 | /* This case can occur if we saw a PLT reloc in an input | |
3972 | file, but the symbol was never referred to by a dynamic | |
3973 | object. In such a case, we don't actually need to build | |
3974 | a procedure linkage table, and we can just do a PCREL | |
3975 | reloc instead. */ | |
3976 | h->plt.offset = (bfd_vma) - 1; | |
3977 | h->needs_plt = 0; | |
3978 | } | |
3979 | ||
0a1b45a2 | 3980 | return true; |
35c08157 KLC |
3981 | } |
3982 | else | |
3983 | h->plt.offset = (bfd_vma) - 1; | |
3984 | ||
3985 | /* If this is a weak symbol, and there is a real definition, the | |
3986 | processor independent code will have arranged for us to see the | |
3987 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 3988 | if (h->is_weakalias) |
35c08157 | 3989 | { |
60d67dc8 AM |
3990 | struct elf_link_hash_entry *def = weakdef (h); |
3991 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
3992 | h->root.u.def.section = def->root.u.def.section; | |
3993 | h->root.u.def.value = def->root.u.def.value; | |
0a1b45a2 | 3994 | return true; |
35c08157 KLC |
3995 | } |
3996 | ||
3997 | /* This is a reference to a symbol defined by a dynamic object which | |
3998 | is not a function. */ | |
3999 | ||
4000 | /* If we are creating a shared library, we must presume that the | |
4001 | only references to the symbol are via the global offset table. | |
4002 | For such cases we need not do anything here; the relocations will | |
4003 | be handled correctly by relocate_section. */ | |
0e1862bb | 4004 | if (bfd_link_pic (info)) |
0a1b45a2 | 4005 | return true; |
35c08157 KLC |
4006 | |
4007 | /* If there are no references to this symbol that do not use the | |
4008 | GOT, we don't need to generate a copy reloc. */ | |
4009 | if (!h->non_got_ref) | |
0a1b45a2 | 4010 | return true; |
35c08157 KLC |
4011 | |
4012 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
3bf083ed | 4013 | if (0 && info->nocopyreloc) |
35c08157 KLC |
4014 | { |
4015 | h->non_got_ref = 0; | |
0a1b45a2 | 4016 | return true; |
35c08157 KLC |
4017 | } |
4018 | ||
3bf083ed AM |
4019 | /* If we don't find any dynamic relocs in read-only sections, then |
4020 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
5dbc8b37 | 4021 | if (!_bfd_elf_readonly_dynrelocs (h)) |
35c08157 KLC |
4022 | { |
4023 | h->non_got_ref = 0; | |
0a1b45a2 | 4024 | return true; |
35c08157 KLC |
4025 | } |
4026 | ||
4027 | /* We must allocate the symbol in our .dynbss section, which will | |
4028 | become part of the .bss section of the executable. There will be | |
4029 | an entry for this symbol in the .dynsym section. The dynamic | |
4030 | object will contain position independent code, so all references | |
4031 | from the dynamic object to this symbol will go through the global | |
4032 | offset table. The dynamic linker will use the .dynsym entry to | |
4033 | determine the address it must put in the global offset table, so | |
4034 | both the dynamic object and the regular object will refer to the | |
4035 | same memory location for the variable. */ | |
4036 | ||
4037 | htab = nds32_elf_hash_table (info); | |
f1dfbfdb | 4038 | s = htab->root.sdynbss; |
35c08157 KLC |
4039 | BFD_ASSERT (s != NULL); |
4040 | ||
4041 | /* We must generate a R_NDS32_COPY reloc to tell the dynamic linker | |
4042 | to copy the initial value out of the dynamic object and into the | |
4043 | runtime process image. We need to remember the offset into the | |
4044 | .rela.bss section we are going to use. */ | |
4045 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
4046 | { | |
4047 | asection *srel; | |
4048 | ||
f1dfbfdb | 4049 | srel = htab->root.srelbss; |
35c08157 KLC |
4050 | BFD_ASSERT (srel != NULL); |
4051 | srel->size += sizeof (Elf32_External_Rela); | |
4052 | h->needs_copy = 1; | |
4053 | } | |
4054 | ||
4055 | /* We need to figure out the alignment required for this symbol. I | |
4056 | have no idea how ELF linkers handle this. */ | |
4057 | power_of_two = bfd_log2 (h->size); | |
4058 | if (power_of_two > 3) | |
4059 | power_of_two = 3; | |
4060 | ||
4061 | /* Apply the required alignment. */ | |
4062 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); | |
fd361982 | 4063 | if (power_of_two > bfd_section_alignment (s)) |
35c08157 | 4064 | { |
fd361982 | 4065 | if (!bfd_set_section_alignment (s, power_of_two)) |
0a1b45a2 | 4066 | return false; |
35c08157 KLC |
4067 | } |
4068 | ||
4069 | /* Define the symbol as being at this point in the section. */ | |
4070 | h->root.u.def.section = s; | |
4071 | h->root.u.def.value = s->size; | |
4072 | ||
4073 | /* Increment the section size to make room for the symbol. */ | |
4074 | s->size += h->size; | |
4075 | ||
0a1b45a2 | 4076 | return true; |
35c08157 KLC |
4077 | } |
4078 | ||
4079 | /* Allocate space in .plt, .got and associated reloc sections for | |
4080 | dynamic relocs. */ | |
4081 | ||
0a1b45a2 | 4082 | static bool |
35c08157 KLC |
4083 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
4084 | { | |
4085 | struct bfd_link_info *info; | |
fbaf61ad | 4086 | struct elf_link_hash_table *ehtab; |
35c08157 | 4087 | struct elf_nds32_link_hash_table *htab; |
3bf083ed | 4088 | struct elf_dyn_relocs *p; |
35c08157 KLC |
4089 | |
4090 | if (h->root.type == bfd_link_hash_indirect) | |
0a1b45a2 | 4091 | return true; |
35c08157 | 4092 | |
fbaf61ad NC |
4093 | /* When warning symbols are created, they **replace** the "real" |
4094 | entry in the hash table, thus we never get to see the real | |
4095 | symbol in a hash traversal. So look at it now. */ | |
35c08157 | 4096 | if (h->root.type == bfd_link_hash_warning) |
35c08157 KLC |
4097 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
4098 | ||
4099 | info = (struct bfd_link_info *) inf; | |
fbaf61ad | 4100 | ehtab = elf_hash_table (info); |
35c08157 | 4101 | htab = nds32_elf_hash_table (info); |
fbaf61ad | 4102 | if (htab == NULL) |
0a1b45a2 | 4103 | return false; |
35c08157 | 4104 | |
fbaf61ad NC |
4105 | if ((htab->root.dynamic_sections_created || h->type == STT_GNU_IFUNC) |
4106 | && h->plt.refcount > 0 | |
4107 | && !(bfd_link_pie (info) && h->def_regular)) | |
35c08157 KLC |
4108 | { |
4109 | /* Make sure this symbol is output as a dynamic symbol. | |
4110 | Undefined weak syms won't yet be marked as dynamic. */ | |
4111 | if (h->dynindx == -1 && !h->forced_local) | |
4112 | { | |
4113 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
0a1b45a2 | 4114 | return false; |
35c08157 KLC |
4115 | } |
4116 | ||
0e1862bb | 4117 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
35c08157 | 4118 | { |
fbaf61ad | 4119 | asection *s = ehtab->splt; |
35c08157 KLC |
4120 | |
4121 | /* If this is the first .plt entry, make room for the special | |
4122 | first entry. */ | |
4123 | if (s->size == 0) | |
4124 | s->size += PLT_ENTRY_SIZE; | |
4125 | ||
4126 | h->plt.offset = s->size; | |
4127 | ||
4128 | /* If this symbol is not defined in a regular file, and we are | |
4129 | not generating a shared library, then set the symbol to this | |
4130 | location in the .plt. This is required to make function | |
4131 | pointers compare as equal between the normal executable and | |
4132 | the shared library. */ | |
0e1862bb | 4133 | if (!bfd_link_pic (info) && !h->def_regular) |
35c08157 KLC |
4134 | { |
4135 | h->root.u.def.section = s; | |
4136 | h->root.u.def.value = h->plt.offset; | |
4137 | } | |
4138 | ||
4139 | /* Make room for this entry. */ | |
4140 | s->size += PLT_ENTRY_SIZE; | |
4141 | ||
4142 | /* We also need to make an entry in the .got.plt section, which | |
4143 | will be placed in the .got section by the linker script. */ | |
fbaf61ad | 4144 | ehtab->sgotplt->size += 4; |
35c08157 KLC |
4145 | |
4146 | /* We also need to make an entry in the .rel.plt section. */ | |
fbaf61ad NC |
4147 | ehtab->srelplt->size += sizeof (Elf32_External_Rela); |
4148 | if (htab->tls_desc_trampoline) | |
4149 | htab->next_tls_desc_index++; | |
35c08157 KLC |
4150 | } |
4151 | else | |
4152 | { | |
4153 | h->plt.offset = (bfd_vma) - 1; | |
4154 | h->needs_plt = 0; | |
4155 | } | |
4156 | } | |
4157 | else | |
4158 | { | |
4159 | h->plt.offset = (bfd_vma) - 1; | |
4160 | h->needs_plt = 0; | |
4161 | } | |
4162 | ||
4163 | if (h->got.refcount > 0) | |
4164 | { | |
fbaf61ad | 4165 | asection *sgot; |
0a1b45a2 | 4166 | bool dyn; |
1c8f6a4d | 4167 | int tls_type = elf32_nds32_hash_entry (h)->tls_type; |
35c08157 KLC |
4168 | |
4169 | /* Make sure this symbol is output as a dynamic symbol. | |
4170 | Undefined weak syms won't yet be marked as dynamic. */ | |
4171 | if (h->dynindx == -1 && !h->forced_local) | |
4172 | { | |
4173 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
0a1b45a2 | 4174 | return false; |
35c08157 KLC |
4175 | } |
4176 | ||
fbaf61ad NC |
4177 | sgot = elf_hash_table (info)->sgot; |
4178 | h->got.offset = sgot->size; | |
1c8f6a4d KLC |
4179 | |
4180 | if (tls_type == GOT_UNKNOWN) | |
4181 | abort (); | |
fbaf61ad NC |
4182 | |
4183 | /* Non-TLS symbols, and TLS_IE need one GOT slot. */ | |
4184 | if (tls_type & (GOT_NORMAL | GOT_TLS_IE | GOT_TLS_IEGP)) | |
4185 | sgot->size += 4; | |
4186 | else | |
4187 | { | |
4188 | /* TLS_DESC, TLS_GD, and TLS_LD need 2 consecutive GOT slots. */ | |
4189 | if (tls_type & GOT_TLS_DESC) | |
4190 | sgot->size += 8; | |
4191 | } | |
1c8f6a4d | 4192 | |
35c08157 | 4193 | dyn = htab->root.dynamic_sections_created; |
fbaf61ad | 4194 | |
0e1862bb | 4195 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)) |
fbaf61ad NC |
4196 | { |
4197 | if (tls_type == GOT_TLS_DESC && htab->tls_desc_trampoline) | |
4198 | { | |
4199 | /* TLS_DESC with trampoline needs a relocation slot | |
4200 | within .rela.plt. */ | |
4201 | htab->num_tls_desc++; | |
4202 | ehtab->srelplt->size += sizeof (Elf32_External_Rela); | |
4203 | htab->tls_trampoline = -1; | |
4204 | } | |
4205 | else | |
4206 | { | |
4207 | /* other relocations, including TLS_DESC without trampoline, need | |
4208 | a relocation slot within .rela.got. */ | |
4209 | ehtab->srelgot->size += sizeof (Elf32_External_Rela); | |
4210 | } | |
4211 | } | |
35c08157 KLC |
4212 | } |
4213 | else | |
fbaf61ad | 4214 | h->got.offset = (bfd_vma)-1; |
35c08157 | 4215 | |
190eb1dd | 4216 | if (h->dyn_relocs == NULL) |
0a1b45a2 | 4217 | return true; |
35c08157 KLC |
4218 | |
4219 | /* In the shared -Bsymbolic case, discard space allocated for | |
4220 | dynamic pc-relative relocs against symbols which turn out to be | |
4221 | defined in regular objects. For the normal shared case, discard | |
4222 | space for pc-relative relocs that have become local due to symbol | |
4223 | visibility changes. */ | |
4224 | ||
0e1862bb | 4225 | if (bfd_link_pic (info)) |
35c08157 KLC |
4226 | { |
4227 | if (h->def_regular && (h->forced_local || info->symbolic)) | |
4228 | { | |
3bf083ed | 4229 | struct elf_dyn_relocs **pp; |
35c08157 | 4230 | |
190eb1dd | 4231 | for (pp = &h->dyn_relocs; (p = *pp) != NULL;) |
35c08157 KLC |
4232 | { |
4233 | p->count -= p->pc_count; | |
4234 | p->pc_count = 0; | |
4235 | if (p->count == 0) | |
4236 | *pp = p->next; | |
4237 | else | |
4238 | pp = &p->next; | |
4239 | } | |
4240 | } | |
4241 | } | |
4242 | else | |
4243 | { | |
4244 | /* For the non-shared case, discard space for relocs against | |
4245 | symbols which turn out to need copy relocs or are not dynamic. */ | |
4246 | ||
4247 | if (!h->non_got_ref | |
4248 | && ((h->def_dynamic | |
4249 | && !h->def_regular) | |
4250 | || (htab->root.dynamic_sections_created | |
4251 | && (h->root.type == bfd_link_hash_undefweak | |
4252 | || h->root.type == bfd_link_hash_undefined)))) | |
4253 | { | |
4254 | /* Make sure this symbol is output as a dynamic symbol. | |
4255 | Undefined weak syms won't yet be marked as dynamic. */ | |
4256 | if (h->dynindx == -1 && !h->forced_local) | |
4257 | { | |
4258 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
0a1b45a2 | 4259 | return false; |
35c08157 KLC |
4260 | } |
4261 | ||
4262 | /* If that succeeded, we know we'll be keeping all the | |
4263 | relocs. */ | |
4264 | if (h->dynindx != -1) | |
4265 | goto keep; | |
4266 | } | |
4267 | ||
190eb1dd | 4268 | h->dyn_relocs = NULL; |
35c08157 | 4269 | |
dc1e8a47 | 4270 | keep:; |
35c08157 KLC |
4271 | } |
4272 | ||
4273 | /* Finally, allocate space. */ | |
190eb1dd | 4274 | for (p = h->dyn_relocs; p != NULL; p = p->next) |
35c08157 KLC |
4275 | { |
4276 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
4277 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
4278 | } | |
4279 | ||
0a1b45a2 | 4280 | return true; |
35c08157 KLC |
4281 | } |
4282 | ||
fbaf61ad NC |
4283 | /* Add relocation REL to the end of relocation section SRELOC. */ |
4284 | ||
4285 | static void | |
4286 | elf32_nds32_add_dynreloc (bfd *output_bfd, | |
4287 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
4288 | asection *sreloc, Elf_Internal_Rela *rel) | |
4289 | { | |
4290 | bfd_byte *loc; | |
4291 | if (sreloc == NULL) | |
4292 | abort (); | |
4293 | ||
4294 | loc = sreloc->contents; | |
4295 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
4296 | if (sreloc->reloc_count * sizeof (Elf32_External_Rela) > sreloc->size) | |
4297 | abort (); | |
4298 | ||
4299 | bfd_elf32_swap_reloca_out (output_bfd, rel, loc); | |
4300 | } | |
4301 | ||
35c08157 KLC |
4302 | /* Set the sizes of the dynamic sections. */ |
4303 | ||
0a1b45a2 | 4304 | static bool |
af969b14 AM |
4305 | nds32_elf_late_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
4306 | struct bfd_link_info *info) | |
35c08157 KLC |
4307 | { |
4308 | struct elf_nds32_link_hash_table *htab; | |
4309 | bfd *dynobj; | |
4310 | asection *s; | |
0a1b45a2 | 4311 | bool relocs; |
35c08157 KLC |
4312 | bfd *ibfd; |
4313 | ||
4314 | htab = nds32_elf_hash_table (info); | |
fbaf61ad | 4315 | if (htab == NULL) |
0a1b45a2 | 4316 | return false; |
fbaf61ad NC |
4317 | |
4318 | dynobj = elf_hash_table (info)->dynobj; | |
af969b14 AM |
4319 | if (dynobj == NULL) |
4320 | return true; | |
35c08157 | 4321 | |
fbaf61ad | 4322 | if (elf_hash_table (info)->dynamic_sections_created) |
35c08157 KLC |
4323 | { |
4324 | /* Set the contents of the .interp section to the interpreter. */ | |
f5233a16 | 4325 | if (bfd_link_executable (info) && !info->nointerp) |
35c08157 KLC |
4326 | { |
4327 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
4328 | BFD_ASSERT (s != NULL); | |
4329 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
4330 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
4331 | } | |
4332 | } | |
4333 | ||
4334 | /* Set up .got offsets for local syms, and space for local dynamic | |
4335 | relocs. */ | |
c72f2fb2 | 4336 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
35c08157 KLC |
4337 | { |
4338 | bfd_signed_vma *local_got; | |
4339 | bfd_signed_vma *end_local_got; | |
4340 | bfd_size_type locsymcount; | |
4341 | Elf_Internal_Shdr *symtab_hdr; | |
fbaf61ad NC |
4342 | asection *sgot; |
4343 | char *local_tls_type; | |
4344 | unsigned long symndx; | |
4345 | bfd_vma *local_tlsdesc_gotent; | |
35c08157 KLC |
4346 | |
4347 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
4348 | continue; | |
4349 | ||
4350 | for (s = ibfd->sections; s != NULL; s = s->next) | |
4351 | { | |
3bf083ed | 4352 | struct elf_dyn_relocs *p; |
35c08157 | 4353 | |
3bf083ed | 4354 | for (p = ((struct elf_dyn_relocs *) |
35c08157 KLC |
4355 | elf_section_data (s)->local_dynrel); |
4356 | p != NULL; p = p->next) | |
4357 | { | |
4358 | if (!bfd_is_abs_section (p->sec) | |
4359 | && bfd_is_abs_section (p->sec->output_section)) | |
4360 | { | |
4361 | /* Input section has been discarded, either because | |
4362 | it is a copy of a linkonce section or due to | |
4363 | linker script /DISCARD/, so we'll be discarding | |
4364 | the relocs too. */ | |
4365 | } | |
4366 | else if (p->count != 0) | |
4367 | { | |
fbaf61ad NC |
4368 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
4369 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
35c08157 KLC |
4370 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
4371 | info->flags |= DF_TEXTREL; | |
4372 | } | |
4373 | } | |
4374 | } | |
4375 | ||
4376 | local_got = elf_local_got_refcounts (ibfd); | |
4377 | if (!local_got) | |
4378 | continue; | |
4379 | ||
4380 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
4381 | locsymcount = symtab_hdr->sh_info; | |
4382 | end_local_got = local_got + locsymcount; | |
fbaf61ad NC |
4383 | sgot = elf_hash_table (info)->sgot; |
4384 | local_tls_type = elf32_nds32_local_got_tls_type (ibfd); | |
4385 | local_tlsdesc_gotent = elf32_nds32_local_tlsdesc_gotent (ibfd); | |
4386 | for (symndx = 0; local_got < end_local_got; | |
4387 | ++local_got, ++local_tls_type, ++local_tlsdesc_gotent, ++symndx) | |
35c08157 KLC |
4388 | { |
4389 | if (*local_got > 0) | |
4390 | { | |
fbaf61ad NC |
4391 | int num_of_got_entry_needed = 0; |
4392 | *local_got = sgot->size; | |
4393 | *local_tlsdesc_gotent = sgot->size; | |
4394 | ||
4395 | /* TLS_NORMAL, and TLS_IE need one slot in .got. */ | |
4396 | if (*local_tls_type & (GOT_NORMAL | GOT_TLS_IE | GOT_TLS_IEGP)) | |
4397 | num_of_got_entry_needed = 1; | |
4398 | /* TLS_GD, TLS_LD, and TLS_DESC need an 8-byte structure in the GOT. */ | |
4399 | else if (*local_tls_type & GOT_TLS_DESC) | |
4400 | num_of_got_entry_needed = 2; | |
4401 | ||
4402 | sgot->size += (num_of_got_entry_needed << 2); | |
4403 | ||
4404 | /* non-relax-able TLS_DESCs need a slot in .rela.plt. | |
4405 | others need a slot in .rela.got. */ | |
4406 | if (*local_tls_type == GOT_TLS_DESC) | |
4407 | { | |
4408 | if (bfd_link_pic (info)) | |
4409 | { | |
4410 | if (htab->tls_desc_trampoline) | |
4411 | { | |
4412 | htab->num_tls_desc++; | |
4413 | htab->root.srelplt->size += sizeof (Elf32_External_Rela); | |
4414 | htab->tls_trampoline = -1; | |
4415 | } | |
4416 | else | |
4417 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); | |
4418 | } | |
4419 | else | |
4420 | { | |
4421 | /* TLS_DESC -> TLS_LE */ | |
4422 | } | |
4423 | } | |
4424 | else | |
4425 | { | |
4426 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); | |
4427 | } | |
35c08157 KLC |
4428 | } |
4429 | else | |
fbaf61ad NC |
4430 | { |
4431 | *local_got = (bfd_vma) -1; | |
4432 | *local_tlsdesc_gotent = (bfd_vma) -1; | |
4433 | } | |
35c08157 KLC |
4434 | } |
4435 | } | |
4436 | ||
4437 | /* Allocate global sym .plt and .got entries, and space for global | |
4438 | sym dynamic relocs. */ | |
4439 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, (void *) info); | |
4440 | ||
fbaf61ad NC |
4441 | /* For every jump slot reserved in the sgotplt, reloc_count is |
4442 | incremented. However, when we reserve space for TLS descriptors, | |
4443 | it's not incremented, so in order to compute the space reserved | |
4444 | for them, it suffices to multiply the reloc count by the jump | |
4445 | slot size. */ | |
4446 | if (htab->tls_desc_trampoline && htab->root.srelplt) | |
4447 | htab->sgotplt_jump_table_size = elf32_nds32_compute_jump_table_size (htab); | |
4448 | ||
4449 | if (htab->tls_trampoline) | |
4450 | { | |
4451 | htab->tls_trampoline = htab->root.splt->size; | |
4452 | ||
4453 | /* If we're not using lazy TLS relocations, don't generate the | |
4454 | PLT and GOT entries they require. */ | |
9bcc30e4 L |
4455 | if ((info->flags & DF_BIND_NOW)) |
4456 | htab->root.tlsdesc_plt = 0; | |
4457 | else | |
fbaf61ad | 4458 | { |
9bcc30e4 | 4459 | htab->root.tlsdesc_got = htab->root.sgot->size; |
fbaf61ad NC |
4460 | htab->root.sgot->size += 4; |
4461 | ||
9bcc30e4 | 4462 | htab->root.tlsdesc_plt = htab->root.splt->size; |
fbaf61ad NC |
4463 | htab->root.splt->size += 4 * ARRAY_SIZE (dl_tlsdesc_lazy_trampoline); |
4464 | } | |
4465 | } | |
4466 | ||
35c08157 KLC |
4467 | /* We now have determined the sizes of the various dynamic sections. |
4468 | Allocate memory for them. */ | |
fbaf61ad NC |
4469 | /* The check_relocs and adjust_dynamic_symbol entry points have |
4470 | determined the sizes of the various dynamic sections. Allocate | |
4471 | memory for them. */ | |
0a1b45a2 | 4472 | relocs = false; |
35c08157 KLC |
4473 | for (s = dynobj->sections; s != NULL; s = s->next) |
4474 | { | |
4475 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
4476 | continue; | |
4477 | ||
ce558b89 | 4478 | if (s == htab->root.splt) |
35c08157 KLC |
4479 | { |
4480 | /* Strip this section if we don't need it; see the | |
4481 | comment below. */ | |
3084d7a2 | 4482 | ; |
35c08157 | 4483 | } |
fbaf61ad | 4484 | else if (s == elf_hash_table (info)->sgot) |
35c08157 KLC |
4485 | { |
4486 | got_size += s->size; | |
4487 | } | |
fbaf61ad | 4488 | else if (s == elf_hash_table (info)->sgotplt) |
35c08157 KLC |
4489 | { |
4490 | got_size += s->size; | |
4491 | } | |
3f3328b8 | 4492 | else if (startswith (bfd_section_name (s), ".rela")) |
35c08157 | 4493 | { |
fbaf61ad | 4494 | if (s->size != 0 && s != elf_hash_table (info)->srelplt) |
0a1b45a2 | 4495 | relocs = true; |
35c08157 KLC |
4496 | |
4497 | /* We use the reloc_count field as a counter if we need | |
4498 | to copy relocs into the output file. */ | |
4499 | s->reloc_count = 0; | |
4500 | } | |
4501 | else | |
4502 | { | |
4503 | /* It's not one of our sections, so don't allocate space. */ | |
4504 | continue; | |
4505 | } | |
4506 | ||
4507 | if (s->size == 0) | |
4508 | { | |
4509 | /* If we don't need this section, strip it from the | |
4510 | output file. This is mostly to handle .rela.bss and | |
4511 | .rela.plt. We must create both sections in | |
4512 | create_dynamic_sections, because they must be created | |
4513 | before the linker maps input sections to output | |
4514 | sections. The linker does that before | |
4515 | adjust_dynamic_symbol is called, and it is that | |
4516 | function which decides whether anything needs to go | |
4517 | into these sections. */ | |
4518 | s->flags |= SEC_EXCLUDE; | |
4519 | continue; | |
4520 | } | |
4521 | ||
4522 | /* Allocate memory for the section contents. We use bfd_zalloc | |
4523 | here in case unused entries are not reclaimed before the | |
4524 | section's contents are written out. This should not happen, | |
4525 | but this way if it does, we get a R_NDS32_NONE reloc instead | |
4526 | of garbage. */ | |
4527 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); | |
4528 | if (s->contents == NULL) | |
0a1b45a2 | 4529 | return false; |
35c08157 KLC |
4530 | } |
4531 | ||
3084d7a2 | 4532 | return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs); |
35c08157 KLC |
4533 | } |
4534 | ||
4535 | static bfd_reloc_status_type | |
4536 | nds32_relocate_contents (reloc_howto_type *howto, bfd *input_bfd, | |
4537 | bfd_vma relocation, bfd_byte *location) | |
4538 | { | |
4539 | int size; | |
4540 | bfd_vma x = 0; | |
4541 | bfd_reloc_status_type flag; | |
4542 | unsigned int rightshift = howto->rightshift; | |
4543 | unsigned int bitpos = howto->bitpos; | |
4544 | ||
fde0214a | 4545 | if (howto->negate) |
35c08157 KLC |
4546 | relocation = -relocation; |
4547 | ||
4548 | /* Get the value we are going to relocate. */ | |
4549 | size = bfd_get_reloc_size (howto); | |
4550 | switch (size) | |
4551 | { | |
4552 | default: | |
35c08157 KLC |
4553 | abort (); |
4554 | break; | |
6346d5ca AM |
4555 | case 0: |
4556 | return bfd_reloc_ok; | |
35c08157 KLC |
4557 | case 2: |
4558 | x = bfd_getb16 (location); | |
4559 | break; | |
4560 | case 4: | |
4561 | x = bfd_getb32 (location); | |
4562 | break; | |
4563 | } | |
4564 | ||
4565 | /* Check for overflow. FIXME: We may drop bits during the addition | |
4566 | which we don't check for. We must either check at every single | |
4567 | operation, which would be tedious, or we must do the computations | |
4568 | in a type larger than bfd_vma, which would be inefficient. */ | |
4569 | flag = bfd_reloc_ok; | |
4570 | if (howto->complain_on_overflow != complain_overflow_dont) | |
4571 | { | |
4572 | bfd_vma addrmask, fieldmask, signmask, ss; | |
4573 | bfd_vma a, b, sum; | |
4574 | ||
4575 | /* Get the values to be added together. For signed and unsigned | |
4576 | relocations, we assume that all values should be truncated to | |
4577 | the size of an address. For bitfields, all the bits matter. | |
4578 | See also bfd_check_overflow. */ | |
4579 | fieldmask = N_ONES (howto->bitsize); | |
4580 | signmask = ~fieldmask; | |
4581 | addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask; | |
4582 | a = (relocation & addrmask) >> rightshift; | |
4583 | b = (x & howto->src_mask & addrmask) >> bitpos; | |
4584 | ||
4585 | switch (howto->complain_on_overflow) | |
4586 | { | |
4587 | case complain_overflow_signed: | |
4588 | /* If any sign bits are set, all sign bits must be set. | |
4589 | That is, A must be a valid negative address after | |
4590 | shifting. */ | |
4591 | signmask = ~(fieldmask >> 1); | |
4592 | /* Fall through. */ | |
4593 | ||
4594 | case complain_overflow_bitfield: | |
4595 | /* Much like the signed check, but for a field one bit | |
4596 | wider. We allow a bitfield to represent numbers in the | |
4597 | range -2**n to 2**n-1, where n is the number of bits in the | |
4598 | field. Note that when bfd_vma is 32 bits, a 32-bit reloc | |
4599 | can't overflow, which is exactly what we want. */ | |
4600 | ss = a & signmask; | |
4601 | if (ss != 0 && ss != ((addrmask >> rightshift) & signmask)) | |
4602 | flag = bfd_reloc_overflow; | |
4603 | ||
4604 | /* We only need this next bit of code if the sign bit of B | |
4605 | is below the sign bit of A. This would only happen if | |
4606 | SRC_MASK had fewer bits than BITSIZE. Note that if | |
4607 | SRC_MASK has more bits than BITSIZE, we can get into | |
4608 | trouble; we would need to verify that B is in range, as | |
4609 | we do for A above. */ | |
4610 | ss = ((~howto->src_mask) >> 1) & howto->src_mask; | |
4611 | ss >>= bitpos; | |
4612 | ||
4613 | /* Set all the bits above the sign bit. */ | |
4614 | b = (b ^ ss) - ss; | |
4615 | ||
4616 | /* Now we can do the addition. */ | |
4617 | sum = a + b; | |
4618 | ||
4619 | /* See if the result has the correct sign. Bits above the | |
4620 | sign bit are junk now; ignore them. If the sum is | |
4621 | positive, make sure we did not have all negative inputs; | |
4622 | if the sum is negative, make sure we did not have all | |
4623 | positive inputs. The test below looks only at the sign | |
4624 | bits, and it really just | |
4625 | SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM) | |
4626 | ||
4627 | We mask with addrmask here to explicitly allow an address | |
4628 | wrap-around. The Linux kernel relies on it, and it is | |
4629 | the only way to write assembler code which can run when | |
4630 | loaded at a location 0x80000000 away from the location at | |
4631 | which it is linked. */ | |
4632 | if (((~(a ^ b)) & (a ^ sum)) & signmask & addrmask) | |
4633 | flag = bfd_reloc_overflow; | |
4634 | ||
4635 | break; | |
4636 | ||
4637 | case complain_overflow_unsigned: | |
4638 | /* Checking for an unsigned overflow is relatively easy: | |
4639 | trim the addresses and add, and trim the result as well. | |
4640 | Overflow is normally indicated when the result does not | |
4641 | fit in the field. However, we also need to consider the | |
4642 | case when, e.g., fieldmask is 0x7fffffff or smaller, an | |
4643 | input is 0x80000000, and bfd_vma is only 32 bits; then we | |
4644 | will get sum == 0, but there is an overflow, since the | |
4645 | inputs did not fit in the field. Instead of doing a | |
4646 | separate test, we can check for this by or-ing in the | |
4647 | operands when testing for the sum overflowing its final | |
4648 | field. */ | |
4649 | sum = (a + b) & addrmask; | |
4650 | if ((a | b | sum) & signmask) | |
4651 | flag = bfd_reloc_overflow; | |
4652 | break; | |
4653 | ||
4654 | default: | |
4655 | abort (); | |
4656 | } | |
4657 | } | |
4658 | ||
4659 | /* Put RELOCATION in the right bits. */ | |
4660 | relocation >>= (bfd_vma) rightshift; | |
4661 | relocation <<= (bfd_vma) bitpos; | |
4662 | ||
4663 | /* Add RELOCATION to the right bits of X. */ | |
4664 | /* FIXME : 090616 | |
4665 | Because the relaxation may generate duplicate relocation at one address, | |
4666 | an addition to immediate in the instruction may cause the relocation added | |
4667 | several times. | |
4668 | This bug should be fixed in assembler, but a check is also needed here. */ | |
4669 | if (howto->partial_inplace) | |
4670 | x = ((x & ~howto->dst_mask) | |
4671 | | (((x & howto->src_mask) + relocation) & howto->dst_mask)); | |
4672 | else | |
4673 | x = ((x & ~howto->dst_mask) | ((relocation) & howto->dst_mask)); | |
4674 | ||
4675 | ||
4676 | /* Put the relocated value back in the object file. */ | |
4677 | switch (size) | |
4678 | { | |
4679 | default: | |
4680 | case 0: | |
4681 | case 1: | |
4682 | case 8: | |
4683 | abort (); | |
4684 | break; | |
4685 | case 2: | |
4686 | bfd_putb16 (x, location); | |
4687 | break; | |
4688 | case 4: | |
4689 | bfd_putb32 (x, location); | |
4690 | break; | |
4691 | } | |
4692 | ||
4693 | return flag; | |
4694 | } | |
4695 | ||
4696 | static bfd_reloc_status_type | |
4697 | nds32_elf_final_link_relocate (reloc_howto_type *howto, bfd *input_bfd, | |
4698 | asection *input_section, bfd_byte *contents, | |
4699 | bfd_vma address, bfd_vma value, bfd_vma addend) | |
4700 | { | |
4701 | bfd_vma relocation; | |
4702 | ||
4703 | /* Sanity check the address. */ | |
4704 | if (address > bfd_get_section_limit (input_bfd, input_section)) | |
4705 | return bfd_reloc_outofrange; | |
4706 | ||
4707 | /* This function assumes that we are dealing with a basic relocation | |
4708 | against a symbol. We want to compute the value of the symbol to | |
4709 | relocate to. This is just VALUE, the value of the symbol, plus | |
4710 | ADDEND, any addend associated with the reloc. */ | |
4711 | relocation = value + addend; | |
4712 | ||
4713 | /* If the relocation is PC relative, we want to set RELOCATION to | |
4714 | the distance between the symbol (currently in RELOCATION) and the | |
c2bf1eec | 4715 | location we are relocating. If pcrel_offset is FALSE we do not |
35c08157 KLC |
4716 | need to subtract out the offset of the location within the |
4717 | section (which is just ADDRESS). */ | |
4718 | if (howto->pc_relative) | |
4719 | { | |
4720 | relocation -= (input_section->output_section->vma | |
4721 | + input_section->output_offset); | |
4722 | if (howto->pcrel_offset) | |
4723 | relocation -= address; | |
4724 | } | |
4725 | ||
4726 | return nds32_relocate_contents (howto, input_bfd, relocation, | |
4727 | contents + address); | |
4728 | } | |
4729 | ||
37bb890f | 4730 | static int |
35c08157 KLC |
4731 | nds32_elf_output_symbol_hook (struct bfd_link_info *info, |
4732 | const char *name, | |
4733 | Elf_Internal_Sym *elfsym ATTRIBUTE_UNUSED, | |
4734 | asection *input_sec, | |
4735 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
4736 | { | |
4737 | const char *source; | |
4738 | FILE *sym_ld_script = NULL; | |
4739 | struct elf_nds32_link_hash_table *table; | |
4740 | ||
4741 | table = nds32_elf_hash_table (info); | |
4742 | sym_ld_script = table->sym_ld_script; | |
4743 | if (!sym_ld_script) | |
0a1b45a2 | 4744 | return true; |
35c08157 KLC |
4745 | |
4746 | if (!h || !name || *name == '\0') | |
0a1b45a2 | 4747 | return true; |
35c08157 KLC |
4748 | |
4749 | if (input_sec->flags & SEC_EXCLUDE) | |
0a1b45a2 | 4750 | return true; |
35c08157 KLC |
4751 | |
4752 | if (!check_start_export_sym) | |
4753 | { | |
4754 | fprintf (sym_ld_script, "SECTIONS\n{\n"); | |
4755 | check_start_export_sym = 1; | |
4756 | } | |
4757 | ||
4758 | if (h->root.type == bfd_link_hash_defined | |
4759 | || h->root.type == bfd_link_hash_defweak) | |
4760 | { | |
4761 | if (!h->root.u.def.section->output_section) | |
0a1b45a2 | 4762 | return true; |
35c08157 KLC |
4763 | |
4764 | if (bfd_is_const_section (input_sec)) | |
4765 | source = input_sec->name; | |
4766 | else | |
765cf5f6 | 4767 | source = bfd_get_filename (input_sec->owner); |
35c08157 KLC |
4768 | |
4769 | fprintf (sym_ld_script, "\t%s = 0x%08lx;\t /* %s */\n", | |
4770 | h->root.root.string, | |
4771 | (long) (h->root.u.def.value | |
4772 | + h->root.u.def.section->output_section->vma | |
4773 | + h->root.u.def.section->output_offset), source); | |
4774 | } | |
4775 | ||
0a1b45a2 | 4776 | return true; |
35c08157 KLC |
4777 | } |
4778 | ||
4779 | /* Relocate an NDS32/D ELF section. | |
4780 | There is some attempt to make this function usable for many architectures, | |
4781 | both for RELA and REL type relocs, if only to serve as a learning tool. | |
4782 | ||
4783 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
4784 | to handle the relocations for a section. | |
4785 | ||
4786 | The relocs are always passed as Rela structures; if the section | |
4787 | actually uses Rel structures, the r_addend field will always be | |
4788 | zero. | |
4789 | ||
4790 | This function is responsible for adjust the section contents as | |
4791 | necessary, and (if using Rela relocs and generating a | |
4792 | relocatable output file) adjusting the reloc addend as | |
4793 | necessary. | |
4794 | ||
4795 | This function does not have to worry about setting the reloc | |
4796 | address or the reloc symbol index. | |
4797 | ||
4798 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
4799 | ||
4800 | LOCAL_SECTIONS is an array giving the section in the input file | |
4801 | corresponding to the st_shndx field of each local symbol. | |
4802 | ||
4803 | The global hash table entry for the global symbols can be found | |
4804 | via elf_sym_hashes (input_bfd). | |
4805 | ||
4806 | When generating relocatable output, this function must handle | |
4807 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
4808 | going to be the section symbol corresponding to the output | |
4809 | section, which means that the addend must be adjusted | |
4810 | accordingly. */ | |
4811 | ||
fbaf61ad NC |
4812 | /* Return the base VMA address which should be subtracted from real addresses |
4813 | when resolving @dtpoff relocation. | |
4814 | This is PT_TLS segment p_vaddr. */ | |
4815 | ||
4816 | /* Return the relocation value for @tpoff relocation | |
4817 | if STT_TLS virtual address is ADDRESS. */ | |
4818 | ||
4819 | /* Return the relocation value for @gottpoff relocation | |
4820 | if STT_TLS virtual address is ADDRESS. */ | |
4821 | ||
1c8f6a4d | 4822 | static bfd_vma |
fbaf61ad | 4823 | gottpoff (struct bfd_link_info *info, bfd_vma address) |
1c8f6a4d | 4824 | { |
fbaf61ad NC |
4825 | bfd_vma tp_base; |
4826 | bfd_vma tp_offset; | |
4827 | ||
1c8f6a4d KLC |
4828 | /* If tls_sec is NULL, we should have signalled an error already. */ |
4829 | if (elf_hash_table (info)->tls_sec == NULL) | |
4830 | return 0; | |
fbaf61ad NC |
4831 | |
4832 | tp_base = elf_hash_table (info)->tls_sec->vma; | |
4833 | tp_offset = address - tp_base; | |
4834 | ||
4835 | return tp_offset; | |
1c8f6a4d KLC |
4836 | } |
4837 | ||
0a1b45a2 | 4838 | static bool |
fbaf61ad NC |
4839 | patch_tls_desc_to_ie (bfd_byte *contents, Elf_Internal_Rela *rel, bfd *ibfd) |
4840 | { | |
4841 | /* TLS_GD/TLS_LD model #1 | |
4842 | 46 00 00 00 sethi $r0,#0x0 | |
4843 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4844 | 40 00 74 00 add $r0,$r0,$gp | |
4845 | 04 10 00 00 lwi $r1,[$r0+#0x0] | |
4846 | 4b e0 04 01 jral $lp,$r1 */ | |
4847 | ||
4848 | /* TLS_GD/TLS_LD model #2 | |
4849 | 46 00 00 00 sethi $r0,#0x0 | |
4850 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4851 | 38 10 74 02 lw $r1,[$r0+($gp<<#0x0)] | |
4852 | 40 00 74 00 add $r0,$r0,$gp | |
4853 | 4b e0 04 01 jral $lp,$r1 */ | |
4854 | ||
4855 | /* TLS_IE model (non-PIC) | |
4856 | 46 00 00 00 sethi $r0,#0x0 | |
4857 | 04 00 00 00 lwi $r0,[$r0+#0x0] | |
4858 | 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */ | |
4859 | ||
4860 | /* TLS_IE model (PIC) | |
4861 | 46 00 00 00 sethi $r0,#0x0 | |
4862 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4863 | 38 00 74 02 lw $r0,[$r0+($gp<<#0x0)] | |
4864 | 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */ | |
4865 | ||
4866 | /* TLS_GD_TO_IE model | |
4867 | 46 00 00 00 sethi $r0,#0x0 | |
4868 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4869 | 40 00 74 00 add $r0,$rM,$gp | |
4870 | 04 00 00 01 lwi $r0,[$r0+#0x4] | |
4871 | 40 00 64 00 add $r0,$r0,$r25 */ | |
4872 | ||
0a1b45a2 | 4873 | bool rz = false; |
fbaf61ad NC |
4874 | |
4875 | typedef struct | |
4876 | { | |
4877 | uint32_t opcode; | |
4878 | uint32_t mask; | |
4879 | } pat_t; | |
4880 | ||
4881 | uint32_t patch[3] = | |
4882 | { | |
4883 | 0x40007400, /* add $r0,$rM,$gp */ | |
4884 | 0x04000001, /* lwi $r0,[$r0+#0x4] */ | |
4885 | 0x40006400, /* add $r0,$r0,$r25 */ | |
4886 | }; | |
4887 | ||
4888 | pat_t mode0[3] = | |
4889 | { | |
4890 | { 0x40000000, 0xfe0003ff }, | |
4891 | { 0x04000000, 0xfe000000 }, | |
4892 | { 0x4be00001, 0xffff83ff }, | |
4893 | }; | |
4894 | ||
4895 | pat_t mode1[3] = | |
4896 | { | |
4897 | { 0x38007402, 0xfe007fff }, | |
4898 | { 0x40007400, 0xfe007fff }, | |
4899 | { 0x4be00001, 0xffff83ff }, | |
4900 | }; | |
4901 | ||
4902 | unsigned char *p = contents + rel->r_offset; | |
4903 | ||
4904 | uint32_t insn; | |
4905 | uint32_t regidx = 0; | |
4906 | insn = bfd_getb32 (p); | |
4907 | if (INSN_SETHI == (0xfe0fffffu & insn)) | |
4908 | { | |
4909 | regidx = 0x1f & (insn >> 20); | |
4910 | p += 4; | |
4911 | } | |
4912 | ||
4913 | insn = bfd_getb32 (p); | |
4914 | if (INSN_ORI == (0xfe007fffu & insn)) | |
4915 | { | |
4916 | regidx = 0x1f & (insn >> 20); | |
4917 | p += 4; | |
4918 | } | |
4919 | ||
4920 | if (patch[2] == bfd_getb32 (p + 8)) /* Character instruction. */ | |
4921 | { | |
4922 | /* already patched? */ | |
4923 | if ((patch[0] == (0xfff07fffu & bfd_getb32 (p + 0))) && | |
4924 | (patch[1] == bfd_getb32 (p + 4))) | |
0a1b45a2 | 4925 | rz = true; |
fbaf61ad NC |
4926 | } |
4927 | else if (mode0[0].opcode == (mode0[0].mask & bfd_getb32 (p + 0))) | |
4928 | { | |
4929 | if ((mode0[1].opcode == (mode0[1].mask & bfd_getb32 (p + 4))) && | |
4930 | (mode0[2].opcode == (mode0[2].mask & bfd_getb32 (p + 8)))) | |
4931 | { | |
4932 | bfd_putb32 (patch[0] | (regidx << 15), p + 0); | |
4933 | bfd_putb32 (patch[1], p + 4); | |
4934 | bfd_putb32 (patch[2], p + 8); | |
0a1b45a2 | 4935 | rz = true; |
fbaf61ad NC |
4936 | } |
4937 | } | |
4938 | else if (mode1[0].opcode == (mode1[0].mask & bfd_getb32 (p + 0))) | |
4939 | { | |
4940 | if ((mode1[1].opcode == (mode1[1].mask & bfd_getb32 (p + 4))) && | |
4941 | (mode1[2].opcode == (mode1[2].mask & bfd_getb32 (p + 8)))) | |
4942 | { | |
4943 | bfd_putb32 (patch[0] | (regidx << 15), p + 0); | |
4944 | bfd_putb32 (patch[1], p + 4); | |
4945 | bfd_putb32 (patch[2], p + 8); | |
0a1b45a2 | 4946 | rz = true; |
fbaf61ad NC |
4947 | } |
4948 | } | |
4949 | ||
4950 | if (!rz) | |
4951 | { | |
765cf5f6 | 4952 | printf ("%s: %s @ 0x%08x\n", __func__, bfd_get_filename (ibfd), |
fbaf61ad NC |
4953 | (int) rel->r_offset); |
4954 | BFD_ASSERT(0); /* Unsupported pattern. */ | |
4955 | } | |
4956 | ||
4957 | return rz; | |
4958 | } | |
4959 | ||
4960 | static enum elf_nds32_tls_type | |
4961 | get_tls_type (enum elf_nds32_reloc_type r_type, struct elf_link_hash_entry *h); | |
4962 | ||
4963 | static unsigned int | |
4964 | ones32 (register unsigned int x) | |
4965 | { | |
4966 | /* 32-bit recursive reduction using SWAR... | |
4967 | but first step is mapping 2-bit values | |
4968 | into sum of 2 1-bit values in sneaky way. */ | |
4969 | x -= ((x >> 1) & 0x55555555); | |
4970 | x = (((x >> 2) & 0x33333333) + (x & 0x33333333)); | |
4971 | x = (((x >> 4) + x) & 0x0f0f0f0f); | |
4972 | x += (x >> 8); | |
4973 | x += (x >> 16); | |
4974 | return (x & 0x0000003f); | |
4975 | } | |
4976 | ||
a767a1c4 | 4977 | #if !HAVE_FLS |
fbaf61ad NC |
4978 | static unsigned int |
4979 | fls (register unsigned int x) | |
4980 | { | |
4981 | return ffs (x & (-x)); | |
4982 | } | |
a767a1c4 | 4983 | #endif /* !HAVE_FLS */ |
fbaf61ad NC |
4984 | |
4985 | #define nds32_elf_local_tlsdesc_gotent(bfd) \ | |
4986 | (elf_nds32_tdata (bfd)->local_tlsdesc_gotent) | |
4987 | ||
0f684201 | 4988 | static int |
fbaf61ad NC |
4989 | nds32_elf_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED, |
4990 | struct bfd_link_info * info, | |
4991 | bfd * input_bfd, | |
4992 | asection * input_section, | |
4993 | bfd_byte * contents, | |
4994 | Elf_Internal_Rela * relocs, | |
4995 | Elf_Internal_Sym * local_syms, | |
4996 | asection ** local_sections) | |
4997 | { | |
4998 | Elf_Internal_Shdr *symtab_hdr; | |
4999 | struct elf_link_hash_entry **sym_hashes; | |
5000 | Elf_Internal_Rela *rel, *relend; | |
0a1b45a2 | 5001 | bool ret = true; /* Assume success. */ |
fbaf61ad NC |
5002 | int align = 0; |
5003 | bfd_reloc_status_type r; | |
5004 | const char *errmsg = NULL; | |
5005 | bfd_vma gp; | |
5006 | struct elf_link_hash_table *ehtab; | |
5007 | struct elf_nds32_link_hash_table *htab; | |
5008 | bfd *dynobj; | |
5009 | bfd_vma *local_got_offsets; | |
5010 | asection *sgot, *splt, *sreloc; | |
5011 | bfd_vma high_address; | |
5012 | struct elf_nds32_link_hash_table *table; | |
5013 | int eliminate_gc_relocs; | |
35c08157 KLC |
5014 | bfd_vma fpbase_addr; |
5015 | ||
5016 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
5017 | sym_hashes = elf_sym_hashes (input_bfd); | |
fbaf61ad | 5018 | ehtab = elf_hash_table (info); |
35c08157 KLC |
5019 | htab = nds32_elf_hash_table (info); |
5020 | high_address = bfd_get_section_limit (input_bfd, input_section); | |
5021 | ||
5022 | dynobj = htab->root.dynobj; | |
5023 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
5024 | ||
fbaf61ad NC |
5025 | sgot = ehtab->sgot; |
5026 | splt = ehtab->splt; | |
35c08157 KLC |
5027 | sreloc = NULL; |
5028 | ||
5029 | rel = relocs; | |
5030 | relend = relocs + input_section->reloc_count; | |
5031 | ||
5032 | table = nds32_elf_hash_table (info); | |
5033 | eliminate_gc_relocs = table->eliminate_gc_relocs; | |
fbaf61ad | 5034 | |
35c08157 | 5035 | /* By this time, we can adjust the value of _SDA_BASE_. */ |
fbaf61ad | 5036 | /* Explain _SDA_BASE_ */ |
0e1862bb | 5037 | if ((!bfd_link_relocatable (info))) |
35c08157 KLC |
5038 | { |
5039 | is_SDA_BASE_set = 1; | |
0a1b45a2 | 5040 | r = nds32_elf_final_sda_base (output_bfd, info, &gp, true); |
35c08157 | 5041 | if (r != bfd_reloc_ok) |
0a1b45a2 | 5042 | return false; |
35c08157 KLC |
5043 | } |
5044 | ||
fbaf61ad NC |
5045 | /* Do TLS model conversion once at first. */ |
5046 | nds32_elf_unify_tls_model (input_bfd, input_section, contents, info); | |
5047 | ||
35c08157 KLC |
5048 | /* Use gp as fp to prevent truncated fit. Because in relaxation time |
5049 | the fp value is set as gp, and it has be reverted for instruction | |
5050 | setting fp. */ | |
5051 | fpbase_addr = elf_gp (output_bfd); | |
5052 | ||
fbaf61ad | 5053 | /* Deal with (dynamic) relocations. */ |
35c08157 KLC |
5054 | for (rel = relocs; rel < relend; rel++) |
5055 | { | |
5056 | enum elf_nds32_reloc_type r_type; | |
5057 | reloc_howto_type *howto = NULL; | |
5058 | unsigned long r_symndx; | |
5059 | struct elf_link_hash_entry *h = NULL; | |
5060 | Elf_Internal_Sym *sym = NULL; | |
5061 | asection *sec; | |
5062 | bfd_vma relocation; | |
fbaf61ad NC |
5063 | bfd_vma relocation_sym = 0xdeadbeef; |
5064 | Elf_Internal_Rela *lorel; | |
5065 | bfd_vma off; | |
35c08157 KLC |
5066 | |
5067 | /* We can't modify r_addend here as elf_link_input_bfd has an assert to | |
5068 | ensure it's zero (we use REL relocs, not RELA). Therefore this | |
5069 | should be assigning zero to `addend', but for clarity we use | |
5070 | `r_addend'. */ | |
5071 | ||
5072 | bfd_vma addend = rel->r_addend; | |
5073 | bfd_vma offset = rel->r_offset; | |
5074 | ||
5075 | r_type = ELF32_R_TYPE (rel->r_info); | |
5076 | if (r_type >= R_NDS32_max) | |
5077 | { | |
695344c0 | 5078 | /* xgettext:c-format */ |
0aa13fee | 5079 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
4eca0228 | 5080 | input_bfd, r_type); |
35c08157 | 5081 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 5082 | ret = false; |
35c08157 KLC |
5083 | continue; |
5084 | } | |
5085 | ||
5086 | if (r_type == R_NDS32_GNU_VTENTRY | |
5087 | || r_type == R_NDS32_GNU_VTINHERIT | |
5088 | || r_type == R_NDS32_NONE | |
5089 | || r_type == R_NDS32_RELA_GNU_VTENTRY | |
5090 | || r_type == R_NDS32_RELA_GNU_VTINHERIT | |
5091 | || (r_type >= R_NDS32_INSN16 && r_type <= R_NDS32_25_FIXED_RELA) | |
5092 | || r_type == R_NDS32_DATA | |
fbaf61ad | 5093 | || r_type == R_NDS32_TRAN) |
35c08157 KLC |
5094 | continue; |
5095 | ||
0c4bd9d9 KLC |
5096 | /* If we enter the fp-as-gp region. Resolve the address |
5097 | of best fp-base. */ | |
35c08157 KLC |
5098 | if (ELF32_R_TYPE (rel->r_info) == R_NDS32_RELAX_REGION_BEGIN |
5099 | && (rel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
5100 | { | |
5101 | int dist; | |
5102 | ||
5103 | /* Distance to relocation of best fp-base is encoded in R_SYM. */ | |
5104 | dist = rel->r_addend >> 16; | |
5105 | fpbase_addr = calculate_memory_address (input_bfd, rel + dist, | |
5106 | local_syms, symtab_hdr); | |
5107 | } | |
5108 | else if (ELF32_R_TYPE (rel->r_info) == R_NDS32_RELAX_REGION_END | |
5109 | && (rel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
5110 | { | |
5111 | fpbase_addr = elf_gp (output_bfd); | |
5112 | } | |
5113 | ||
fbaf61ad NC |
5114 | /* Skip the relocations used for relaxation. */ |
5115 | /* We have to update LONGCALL and LONGJUMP | |
5116 | relocations when generating the relocatable files. */ | |
5117 | if (!bfd_link_relocatable (info) | |
5118 | && (r_type >= R_NDS32_RELAX_ENTRY | |
5119 | || (r_type >= R_NDS32_LONGCALL4 | |
5120 | && r_type <= R_NDS32_LONGJUMP7))) | |
35c08157 KLC |
5121 | continue; |
5122 | ||
5123 | howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type); | |
5124 | r_symndx = ELF32_R_SYM (rel->r_info); | |
5125 | ||
5126 | /* This is a final link. */ | |
5127 | sym = NULL; | |
5128 | sec = NULL; | |
5129 | h = NULL; | |
5130 | ||
5131 | if (r_symndx < symtab_hdr->sh_info) | |
5132 | { | |
5133 | /* Local symbol. */ | |
5134 | sym = local_syms + r_symndx; | |
5135 | sec = local_sections[r_symndx]; | |
5136 | ||
5137 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
5138 | addend = rel->r_addend; | |
fbaf61ad NC |
5139 | |
5140 | /* keep symbol location for static TLS_IE GOT entry */ | |
5141 | relocation_sym = relocation; | |
5142 | if (bfd_link_relocatable (info)) | |
5143 | { | |
5144 | /* This is a relocatable link. We don't have to change | |
5145 | anything, unless the reloc is against a section symbol, | |
5146 | in which case we have to adjust according to where the | |
5147 | section symbol winds up in the output section. */ | |
5148 | if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
5149 | rel->r_addend += sec->output_offset + sym->st_value; | |
5150 | ||
5151 | continue; | |
5152 | } | |
35c08157 KLC |
5153 | } |
5154 | else | |
5155 | { | |
5156 | /* External symbol. */ | |
fbaf61ad NC |
5157 | if (bfd_link_relocatable (info)) |
5158 | continue; | |
0a1b45a2 | 5159 | bool warned, ignored, unresolved_reloc; |
35c08157 KLC |
5160 | int symndx = r_symndx - symtab_hdr->sh_info; |
5161 | ||
5162 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
5163 | r_symndx, symtab_hdr, sym_hashes, h, sec, | |
5164 | relocation, unresolved_reloc, warned, | |
5165 | ignored); | |
5166 | ||
fbaf61ad NC |
5167 | /* keep symbol location for static TLS_IE GOT entry */ |
5168 | relocation_sym = relocation; | |
5169 | ||
35c08157 KLC |
5170 | /* la $fp, _FP_BASE_ is per-function (region). |
5171 | Handle it specially. */ | |
5172 | switch ((int) r_type) | |
5173 | { | |
fbaf61ad NC |
5174 | case R_NDS32_HI20_RELA: |
5175 | case R_NDS32_LO12S0_RELA: | |
5176 | if (strcmp (elf_sym_hashes (input_bfd)[symndx]->root.root.string, | |
5177 | FP_BASE_NAME) == 0) | |
5178 | { | |
5179 | if (!bfd_link_pie (info)) | |
5180 | { | |
5181 | _bfd_error_handler | |
5182 | ("%pB: warning: _FP_BASE_ setting insns relaxation failed.", | |
5183 | input_bfd); | |
5184 | } | |
5185 | relocation = fpbase_addr; | |
5186 | } | |
5187 | break; | |
35c08157 KLC |
5188 | case R_NDS32_SDA19S0_RELA: |
5189 | case R_NDS32_SDA15S0_RELA: | |
5190 | case R_NDS32_20_RELA: | |
5191 | if (strcmp (elf_sym_hashes (input_bfd)[symndx]->root.root.string, | |
5192 | FP_BASE_NAME) == 0) | |
5193 | { | |
5194 | relocation = fpbase_addr; | |
5195 | break; | |
5196 | } | |
5197 | } | |
35c08157 KLC |
5198 | } |
5199 | ||
5200 | /* Sanity check the address. */ | |
5201 | if (offset > high_address) | |
5202 | { | |
5203 | r = bfd_reloc_outofrange; | |
5204 | goto check_reloc; | |
5205 | } | |
5206 | ||
fbaf61ad | 5207 | if (r_type >= R_NDS32_RELAX_ENTRY) |
35c08157 KLC |
5208 | continue; |
5209 | ||
5210 | switch ((int) r_type) | |
5211 | { | |
5212 | case R_NDS32_GOTOFF: | |
5213 | /* Relocation is relative to the start of the global offset | |
5214 | table (for ld24 rx, #uimm24), e.g. access at label+addend | |
5215 | ||
5216 | ld24 rx. #label@GOTOFF + addend | |
5217 | sub rx, r12. */ | |
5218 | case R_NDS32_GOTOFF_HI20: | |
5219 | case R_NDS32_GOTOFF_LO12: | |
5220 | case R_NDS32_GOTOFF_LO15: | |
5221 | case R_NDS32_GOTOFF_LO19: | |
5222 | BFD_ASSERT (sgot != NULL); | |
5223 | ||
5224 | relocation -= elf_gp (output_bfd); | |
5225 | break; | |
5226 | ||
5227 | case R_NDS32_9_PLTREL: | |
5228 | case R_NDS32_25_PLTREL: | |
5229 | /* Relocation is to the entry for this symbol in the | |
5230 | procedure linkage table. */ | |
5231 | ||
5232 | /* The native assembler will generate a 25_PLTREL reloc | |
5233 | for a local symbol if you assemble a call from one | |
5234 | section to another when using -K pic. */ | |
5235 | if (h == NULL) | |
5236 | break; | |
5237 | ||
5238 | if (h->forced_local) | |
5239 | break; | |
5240 | ||
5241 | /* We didn't make a PLT entry for this symbol. This | |
5242 | happens when statically linking PIC code, or when | |
5243 | using -Bsymbolic. */ | |
5244 | if (h->plt.offset == (bfd_vma) - 1) | |
5245 | break; | |
5246 | ||
5247 | relocation = (splt->output_section->vma | |
5248 | + splt->output_offset + h->plt.offset); | |
5249 | break; | |
5250 | ||
5251 | case R_NDS32_PLT_GOTREL_HI20: | |
5252 | case R_NDS32_PLT_GOTREL_LO12: | |
5253 | case R_NDS32_PLT_GOTREL_LO15: | |
5254 | case R_NDS32_PLT_GOTREL_LO19: | |
5255 | case R_NDS32_PLT_GOTREL_LO20: | |
fbaf61ad NC |
5256 | if (h == NULL |
5257 | || h->forced_local | |
5258 | || h->plt.offset == (bfd_vma) -1 | |
5259 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 | 5260 | { |
fbaf61ad NC |
5261 | /* Maybe we should find better checking to optimize |
5262 | PIE PLT relocations. */ | |
35c08157 KLC |
5263 | /* We didn't make a PLT entry for this symbol. This |
5264 | happens when statically linking PIC code, or when | |
5265 | using -Bsymbolic. */ | |
fbaf61ad NC |
5266 | if (h) |
5267 | h->plt.offset = (bfd_vma) -1; /* Cancel PLT trampoline. */ | |
35c08157 KLC |
5268 | relocation -= elf_gp (output_bfd); |
5269 | break; | |
5270 | } | |
5271 | ||
5272 | relocation = (splt->output_section->vma | |
5273 | + splt->output_offset + h->plt.offset); | |
5274 | ||
5275 | relocation -= elf_gp (output_bfd); | |
5276 | break; | |
5277 | ||
5278 | case R_NDS32_PLTREL_HI20: | |
5279 | case R_NDS32_PLTREL_LO12: | |
5280 | ||
5281 | /* Relocation is to the entry for this symbol in the | |
5282 | procedure linkage table. */ | |
5283 | ||
5284 | /* The native assembler will generate a 25_PLTREL reloc | |
5285 | for a local symbol if you assemble a call from one | |
5286 | section to another when using -K pic. */ | |
5287 | if (h == NULL) | |
5288 | break; | |
5289 | ||
5290 | if (h->forced_local) | |
5291 | break; | |
5292 | ||
5293 | if (h->plt.offset == (bfd_vma) - 1) | |
5294 | /* We didn't make a PLT entry for this symbol. This | |
5295 | happens when statically linking PIC code, or when | |
5296 | using -Bsymbolic. */ | |
5297 | break; | |
5298 | ||
5299 | if (splt == NULL) | |
5300 | break; | |
5301 | ||
5302 | relocation = (splt->output_section->vma | |
5303 | + splt->output_offset | |
5304 | + h->plt.offset + 4) | |
5305 | - (input_section->output_section->vma | |
5306 | + input_section->output_offset | |
5307 | + rel->r_offset); | |
5308 | ||
5309 | break; | |
5310 | ||
5311 | case R_NDS32_GOTPC20: | |
5312 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation | |
5313 | ld24 rx,#_GLOBAL_OFFSET_TABLE_ */ | |
5314 | relocation = elf_gp (output_bfd); | |
5315 | break; | |
5316 | ||
5317 | case R_NDS32_GOTPC_HI20: | |
5318 | case R_NDS32_GOTPC_LO12: | |
fbaf61ad NC |
5319 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation |
5320 | bl .+4 | |
5321 | seth rx,#high(_GLOBAL_OFFSET_TABLE_) | |
5322 | or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) | |
5323 | or | |
5324 | bl .+4 | |
5325 | seth rx,#shigh(_GLOBAL_OFFSET_TABLE_) | |
5326 | add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) */ | |
5327 | relocation = elf_gp (output_bfd); | |
5328 | relocation -= (input_section->output_section->vma | |
5329 | + input_section->output_offset + rel->r_offset); | |
5330 | break; | |
35c08157 KLC |
5331 | |
5332 | case R_NDS32_GOT20: | |
5333 | /* Fall through. */ | |
5334 | case R_NDS32_GOT_HI20: | |
5335 | case R_NDS32_GOT_LO12: | |
5336 | case R_NDS32_GOT_LO15: | |
5337 | case R_NDS32_GOT_LO19: | |
5338 | /* Relocation is to the entry for this symbol in the global | |
5339 | offset table. */ | |
5340 | BFD_ASSERT (sgot != NULL); | |
5341 | ||
5342 | if (h != NULL) | |
5343 | { | |
fbaf61ad | 5344 | /* External symbol */ |
0a1b45a2 | 5345 | bool dyn; |
35c08157 KLC |
5346 | |
5347 | off = h->got.offset; | |
5348 | BFD_ASSERT (off != (bfd_vma) - 1); | |
5349 | dyn = htab->root.dynamic_sections_created; | |
0e1862bb L |
5350 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
5351 | bfd_link_pic (info), | |
5352 | h) | |
5353 | || (bfd_link_pic (info) | |
35c08157 KLC |
5354 | && (info->symbolic |
5355 | || h->dynindx == -1 | |
5356 | || h->forced_local) && h->def_regular)) | |
5357 | { | |
5358 | /* This is actually a static link, or it is a | |
5359 | -Bsymbolic link and the symbol is defined | |
5360 | locally, or the symbol was forced to be local | |
5361 | because of a version file. We must initialize | |
5362 | this entry in the global offset table. Since the | |
5363 | offset must always be a multiple of 4, we use the | |
5364 | least significant bit to record whether we have | |
5365 | initialized it already. | |
5366 | ||
5367 | When doing a dynamic link, we create a .rela.got | |
5368 | relocation entry to initialize the value. This | |
5369 | is done in the finish_dynamic_symbol routine. */ | |
fbaf61ad | 5370 | if ((off & 1) != 0) /* clear LSB */ |
35c08157 KLC |
5371 | off &= ~1; |
5372 | else | |
5373 | { | |
5374 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
5375 | h->got.offset |= 1; | |
5376 | } | |
5377 | } | |
5378 | relocation = sgot->output_section->vma + sgot->output_offset + off | |
5379 | - elf_gp (output_bfd); | |
5380 | } | |
5381 | else | |
5382 | { | |
fbaf61ad | 5383 | /* Local symbol */ |
35c08157 KLC |
5384 | bfd_byte *loc; |
5385 | ||
5386 | BFD_ASSERT (local_got_offsets != NULL | |
5387 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
5388 | ||
5389 | off = local_got_offsets[r_symndx]; | |
5390 | ||
5391 | /* The offset must always be a multiple of 4. We use | |
5392 | the least significant bit to record whether we have | |
5393 | already processed this entry. */ | |
fbaf61ad | 5394 | if ((off & 1) != 0) /* clear LSB */ |
35c08157 KLC |
5395 | off &= ~1; |
5396 | else | |
5397 | { | |
5398 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
5399 | ||
0e1862bb | 5400 | if (bfd_link_pic (info)) |
35c08157 KLC |
5401 | { |
5402 | asection *srelgot; | |
5403 | Elf_Internal_Rela outrel; | |
5404 | ||
5405 | /* We need to generate a R_NDS32_RELATIVE reloc | |
5406 | for the dynamic linker. */ | |
fbaf61ad | 5407 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); |
35c08157 KLC |
5408 | BFD_ASSERT (srelgot != NULL); |
5409 | ||
5410 | outrel.r_offset = (elf_gp (output_bfd) | |
5411 | + sgot->output_offset + off); | |
5412 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
5413 | outrel.r_addend = relocation; | |
5414 | loc = srelgot->contents; | |
5415 | loc += | |
5416 | srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
5417 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5418 | ++srelgot->reloc_count; | |
5419 | } | |
5420 | local_got_offsets[r_symndx] |= 1; | |
5421 | } | |
5422 | relocation = sgot->output_section->vma + sgot->output_offset + off | |
5423 | - elf_gp (output_bfd); | |
5424 | } | |
5425 | ||
5426 | break; | |
5427 | ||
5428 | case R_NDS32_16_RELA: | |
5429 | case R_NDS32_20_RELA: | |
5430 | case R_NDS32_5_RELA: | |
5431 | case R_NDS32_32_RELA: | |
5432 | case R_NDS32_9_PCREL_RELA: | |
5433 | case R_NDS32_WORD_9_PCREL_RELA: | |
5434 | case R_NDS32_10_UPCREL_RELA: | |
5435 | case R_NDS32_15_PCREL_RELA: | |
5436 | case R_NDS32_17_PCREL_RELA: | |
5437 | case R_NDS32_25_PCREL_RELA: | |
5438 | case R_NDS32_HI20_RELA: | |
5439 | case R_NDS32_LO12S3_RELA: | |
5440 | case R_NDS32_LO12S2_RELA: | |
5441 | case R_NDS32_LO12S2_DP_RELA: | |
5442 | case R_NDS32_LO12S2_SP_RELA: | |
5443 | case R_NDS32_LO12S1_RELA: | |
5444 | case R_NDS32_LO12S0_RELA: | |
5445 | case R_NDS32_LO12S0_ORI_RELA: | |
0e1862bb | 5446 | if (bfd_link_pic (info) && r_symndx != 0 |
35c08157 KLC |
5447 | && (input_section->flags & SEC_ALLOC) != 0 |
5448 | && (eliminate_gc_relocs == 0 | |
5449 | || (sec && (sec->flags & SEC_EXCLUDE) == 0)) | |
5450 | && ((r_type != R_NDS32_9_PCREL_RELA | |
5451 | && r_type != R_NDS32_WORD_9_PCREL_RELA | |
5452 | && r_type != R_NDS32_10_UPCREL_RELA | |
5453 | && r_type != R_NDS32_15_PCREL_RELA | |
5454 | && r_type != R_NDS32_17_PCREL_RELA | |
5455 | && r_type != R_NDS32_25_PCREL_RELA | |
5456 | && !(r_type == R_NDS32_32_RELA | |
5457 | && strcmp (input_section->name, ".eh_frame") == 0)) | |
5458 | || (h != NULL && h->dynindx != -1 | |
5459 | && (!info->symbolic || !h->def_regular)))) | |
5460 | { | |
5461 | Elf_Internal_Rela outrel; | |
0a1b45a2 | 5462 | bool skip, relocate; |
35c08157 KLC |
5463 | bfd_byte *loc; |
5464 | ||
5465 | /* When generating a shared object, these relocations | |
5466 | are copied into the output file to be resolved at run | |
5467 | time. */ | |
5468 | ||
5469 | if (sreloc == NULL) | |
5470 | { | |
5471 | const char *name; | |
5472 | ||
5473 | name = bfd_elf_string_from_elf_section | |
5474 | (input_bfd, elf_elfheader (input_bfd)->e_shstrndx, | |
5475 | elf_section_data (input_section)->rela.hdr->sh_name); | |
5476 | if (name == NULL) | |
0a1b45a2 | 5477 | return false; |
35c08157 | 5478 | |
3f3328b8 | 5479 | BFD_ASSERT (startswith (name, ".rela") |
fd361982 | 5480 | && strcmp (bfd_section_name (input_section), |
35c08157 KLC |
5481 | name + 5) == 0); |
5482 | ||
5483 | sreloc = bfd_get_section_by_name (dynobj, name); | |
5484 | BFD_ASSERT (sreloc != NULL); | |
5485 | } | |
5486 | ||
0a1b45a2 AM |
5487 | skip = false; |
5488 | relocate = false; | |
35c08157 KLC |
5489 | |
5490 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, | |
5491 | info, | |
5492 | input_section, | |
5493 | rel->r_offset); | |
5494 | if (outrel.r_offset == (bfd_vma) - 1) | |
0a1b45a2 | 5495 | skip = true; |
35c08157 | 5496 | else if (outrel.r_offset == (bfd_vma) - 2) |
0a1b45a2 | 5497 | skip = true, relocate = true; |
35c08157 KLC |
5498 | outrel.r_offset += (input_section->output_section->vma |
5499 | + input_section->output_offset); | |
5500 | ||
5501 | if (skip) | |
5502 | memset (&outrel, 0, sizeof outrel); | |
5503 | else if (r_type == R_NDS32_17_PCREL_RELA | |
5504 | || r_type == R_NDS32_15_PCREL_RELA | |
5505 | || r_type == R_NDS32_25_PCREL_RELA) | |
5506 | { | |
5507 | BFD_ASSERT (h != NULL && h->dynindx != -1); | |
5508 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
5509 | outrel.r_addend = rel->r_addend; | |
5510 | } | |
5511 | else | |
5512 | { | |
5513 | /* h->dynindx may be -1 if this symbol was marked to | |
5514 | become local. */ | |
5515 | if (h == NULL | |
5516 | || ((info->symbolic || h->dynindx == -1) | |
fbaf61ad NC |
5517 | && h->def_regular) |
5518 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 | 5519 | { |
0a1b45a2 | 5520 | relocate = true; |
35c08157 KLC |
5521 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); |
5522 | outrel.r_addend = relocation + rel->r_addend; | |
fbaf61ad NC |
5523 | |
5524 | if (h) | |
5525 | { | |
5526 | h->plt.offset = (bfd_vma) -1; /* cancel PLT trampoline. */ | |
5527 | ||
5528 | BFD_ASSERT (sgot != NULL); | |
5529 | /* If we did not allocate got entry for the symbol, | |
5530 | we can not fill the nonexistent got entry. */ | |
5531 | if (h->got.offset != (bfd_vma) -1 | |
5532 | && (h->got.offset & 1) == 0) | |
5533 | { | |
5534 | bfd_put_32 (output_bfd, outrel.r_addend, | |
5535 | sgot->contents + h->got.offset); | |
5536 | } | |
5537 | } | |
35c08157 KLC |
5538 | } |
5539 | else | |
5540 | { | |
fbaf61ad NC |
5541 | if (h->dynindx == -1) |
5542 | { | |
5543 | _bfd_error_handler | |
acef8081 | 5544 | (_("%pB: relocation %s against `%s' can not be used when " |
fbaf61ad NC |
5545 | "making a shared object; recompile with -fPIC"), |
5546 | input_bfd, nds32_elf_howto_table[r_type].name, h->root.root.string); | |
5547 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 5548 | return false; |
fbaf61ad NC |
5549 | } |
5550 | ||
35c08157 KLC |
5551 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
5552 | outrel.r_addend = rel->r_addend; | |
5553 | } | |
5554 | } | |
5555 | ||
5556 | loc = sreloc->contents; | |
5557 | loc += sreloc->reloc_count * sizeof (Elf32_External_Rela); | |
5558 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5559 | ++sreloc->reloc_count; | |
5560 | ||
5561 | /* If this reloc is against an external symbol, we do | |
5562 | not want to fiddle with the addend. Otherwise, we | |
5563 | need to include the symbol value so that it becomes | |
5564 | an addend for the dynamic reloc. */ | |
5565 | if (!relocate) | |
5566 | continue; | |
5567 | } | |
5568 | break; | |
5569 | ||
5570 | case R_NDS32_25_ABS_RELA: | |
0e1862bb | 5571 | if (bfd_link_pic (info)) |
35c08157 | 5572 | { |
4eca0228 | 5573 | _bfd_error_handler |
38f14ab8 AM |
5574 | (_("%pB: warning: %s unsupported in shared mode"), |
5575 | input_bfd, "R_NDS32_25_ABS_RELA"); | |
0a1b45a2 | 5576 | return false; |
35c08157 KLC |
5577 | } |
5578 | break; | |
5579 | ||
5580 | case R_NDS32_9_PCREL: | |
5581 | r = nds32_elf_do_9_pcrel_reloc (input_bfd, howto, input_section, | |
5582 | contents, offset, | |
5583 | sec, relocation, addend); | |
5584 | goto check_reloc; | |
5585 | ||
5586 | case R_NDS32_HI20: | |
fbaf61ad NC |
5587 | /* We allow an arbitrary number of HI20 relocs before the |
5588 | LO12 reloc. This permits gcc to emit the HI and LO relocs | |
5589 | itself. */ | |
5590 | for (lorel = rel + 1; | |
5591 | (lorel < relend | |
5592 | && ELF32_R_TYPE (lorel->r_info) == R_NDS32_HI20); lorel++) | |
5593 | continue; | |
5594 | if (lorel < relend | |
5595 | && (ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S3 | |
5596 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S2 | |
5597 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S1 | |
5598 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S0)) | |
35c08157 | 5599 | { |
fbaf61ad NC |
5600 | nds32_elf_relocate_hi20 (input_bfd, r_type, rel, lorel, |
5601 | contents, relocation + addend); | |
5602 | r = bfd_reloc_ok; | |
35c08157 | 5603 | } |
fbaf61ad NC |
5604 | else |
5605 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5606 | contents, offset, relocation, | |
5607 | addend); | |
35c08157 KLC |
5608 | goto check_reloc; |
5609 | ||
5610 | case R_NDS32_GOT17S2_RELA: | |
5611 | case R_NDS32_GOT15S2_RELA: | |
fbaf61ad NC |
5612 | BFD_ASSERT (sgot != NULL); |
5613 | ||
5614 | if (h != NULL) | |
35c08157 | 5615 | { |
0a1b45a2 | 5616 | bool dyn; |
35c08157 | 5617 | |
fbaf61ad NC |
5618 | off = h->got.offset; |
5619 | BFD_ASSERT (off != (bfd_vma) - 1); | |
35c08157 | 5620 | |
fbaf61ad NC |
5621 | dyn = htab->root.dynamic_sections_created; |
5622 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL | |
5623 | (dyn, bfd_link_pic (info), h) | |
5624 | || (bfd_link_pic (info) | |
5625 | && (info->symbolic | |
5626 | || h->dynindx == -1 | |
5627 | || h->forced_local) | |
5628 | && h->def_regular)) | |
35c08157 | 5629 | { |
fbaf61ad NC |
5630 | /* This is actually a static link, or it is a |
5631 | -Bsymbolic link and the symbol is defined | |
5632 | locally, or the symbol was forced to be local | |
5633 | because of a version file. We must initialize | |
5634 | this entry in the global offset table. Since the | |
5635 | offset must always be a multiple of 4, we use the | |
5636 | least significant bit to record whether we have | |
5637 | initialized it already. | |
5638 | ||
5639 | When doing a dynamic link, we create a .rela.got | |
5640 | relocation entry to initialize the value. This | |
5641 | is done in the finish_dynamic_symbol routine. */ | |
5642 | if ((off & 1) != 0) | |
5643 | off &= ~1; | |
5644 | else | |
35c08157 | 5645 | { |
fbaf61ad NC |
5646 | bfd_put_32 (output_bfd, relocation, |
5647 | sgot->contents + off); | |
5648 | h->got.offset |= 1; | |
35c08157 KLC |
5649 | } |
5650 | } | |
fbaf61ad NC |
5651 | } |
5652 | else | |
5653 | { | |
5654 | bfd_byte *loc; | |
35c08157 | 5655 | |
fbaf61ad NC |
5656 | BFD_ASSERT (local_got_offsets != NULL |
5657 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
35c08157 | 5658 | |
fbaf61ad | 5659 | off = local_got_offsets[r_symndx]; |
35c08157 | 5660 | |
fbaf61ad NC |
5661 | /* The offset must always be a multiple of 4. We use |
5662 | the least significant bit to record whether we have | |
5663 | already processed this entry. */ | |
5664 | if ((off & 1) != 0) | |
5665 | off &= ~1; | |
5666 | else | |
5667 | { | |
5668 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
5669 | ||
5670 | if (bfd_link_pic (info)) | |
35c08157 | 5671 | { |
fbaf61ad NC |
5672 | asection *srelgot; |
5673 | Elf_Internal_Rela outrel; | |
35c08157 | 5674 | |
fbaf61ad NC |
5675 | /* We need to generate a R_NDS32_RELATIVE reloc |
5676 | for the dynamic linker. */ | |
5677 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
5678 | BFD_ASSERT (srelgot != NULL); | |
5679 | ||
5680 | outrel.r_offset = (elf_gp (output_bfd) | |
5681 | + sgot->output_offset + off); | |
5682 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
5683 | outrel.r_addend = relocation; | |
5684 | loc = srelgot->contents; | |
5685 | loc += | |
5686 | srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
5687 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5688 | ++srelgot->reloc_count; | |
35c08157 | 5689 | } |
fbaf61ad | 5690 | local_got_offsets[r_symndx] |= 1; |
35c08157 | 5691 | } |
35c08157 | 5692 | } |
fbaf61ad NC |
5693 | relocation = sgot->output_section->vma + sgot->output_offset + off |
5694 | - elf_gp (output_bfd); | |
5695 | ||
35c08157 KLC |
5696 | if (relocation & align) |
5697 | { | |
5698 | /* Incorrect alignment. */ | |
4eca0228 | 5699 | _bfd_error_handler |
38f14ab8 | 5700 | (_("%pB: warning: unaligned access to GOT entry"), input_bfd); |
0a1b45a2 | 5701 | ret = false; |
35c08157 KLC |
5702 | r = bfd_reloc_dangerous; |
5703 | goto check_reloc; | |
5704 | } | |
5705 | break; | |
5706 | ||
5707 | case R_NDS32_SDA16S3_RELA: | |
5708 | case R_NDS32_SDA15S3_RELA: | |
5709 | case R_NDS32_SDA15S3: | |
5710 | align = 0x7; | |
5711 | goto handle_sda; | |
5712 | ||
5713 | case R_NDS32_SDA17S2_RELA: | |
5714 | case R_NDS32_SDA15S2_RELA: | |
5715 | case R_NDS32_SDA12S2_SP_RELA: | |
5716 | case R_NDS32_SDA12S2_DP_RELA: | |
5717 | case R_NDS32_SDA15S2: | |
5718 | case R_NDS32_SDA_FP7U2_RELA: | |
5719 | align = 0x3; | |
5720 | goto handle_sda; | |
5721 | ||
5722 | case R_NDS32_SDA18S1_RELA: | |
5723 | case R_NDS32_SDA15S1_RELA: | |
5724 | case R_NDS32_SDA15S1: | |
5725 | align = 0x1; | |
5726 | goto handle_sda; | |
5727 | ||
5728 | case R_NDS32_SDA19S0_RELA: | |
5729 | case R_NDS32_SDA15S0_RELA: | |
5730 | case R_NDS32_SDA15S0: | |
fbaf61ad | 5731 | align = 0x0; |
dc1e8a47 | 5732 | handle_sda: |
fbaf61ad | 5733 | BFD_ASSERT (sec != NULL); |
35c08157 | 5734 | |
fbaf61ad NC |
5735 | /* If the symbol is in the abs section, the out_bfd will be null. |
5736 | This happens when the relocation has a symbol@GOTOFF. */ | |
0a1b45a2 | 5737 | r = nds32_elf_final_sda_base (output_bfd, info, &gp, false); |
fbaf61ad NC |
5738 | if (r != bfd_reloc_ok) |
5739 | { | |
5740 | _bfd_error_handler | |
5741 | (_("%pB: warning: relocate SDA_BASE failed"), input_bfd); | |
0a1b45a2 | 5742 | ret = false; |
fbaf61ad NC |
5743 | goto check_reloc; |
5744 | } | |
35c08157 | 5745 | |
fbaf61ad NC |
5746 | /* At this point `relocation' contains the object's |
5747 | address. */ | |
5748 | if (r_type == R_NDS32_SDA_FP7U2_RELA) | |
5749 | { | |
5750 | relocation -= fpbase_addr; | |
5751 | } | |
5752 | else | |
5753 | relocation -= gp; | |
5754 | /* Now it contains the offset from _SDA_BASE_. */ | |
35c08157 | 5755 | |
fbaf61ad | 5756 | /* Make sure alignment is correct. */ |
35c08157 | 5757 | |
fbaf61ad NC |
5758 | if (relocation & align) |
5759 | { | |
5760 | /* Incorrect alignment. */ | |
5761 | _bfd_error_handler | |
5762 | /* xgettext:c-format */ | |
5763 | (_("%pB(%pA): warning: unaligned small data access" | |
5764 | " of type %d"), | |
5765 | input_bfd, input_section, r_type); | |
0a1b45a2 | 5766 | ret = false; |
fbaf61ad | 5767 | goto check_reloc; |
35c08157 | 5768 | } |
35c08157 | 5769 | break; |
fbaf61ad | 5770 | |
35c08157 KLC |
5771 | case R_NDS32_17IFC_PCREL_RELA: |
5772 | case R_NDS32_10IFCU_PCREL_RELA: | |
fbaf61ad | 5773 | /* Do nothing. */ |
35c08157 KLC |
5774 | break; |
5775 | ||
1c8f6a4d KLC |
5776 | case R_NDS32_TLS_LE_HI20: |
5777 | case R_NDS32_TLS_LE_LO12: | |
5778 | case R_NDS32_TLS_LE_20: | |
5779 | case R_NDS32_TLS_LE_15S0: | |
5780 | case R_NDS32_TLS_LE_15S1: | |
5781 | case R_NDS32_TLS_LE_15S2: | |
fbaf61ad NC |
5782 | /* We do not have garbage collection for got entries. |
5783 | Therefore, IE to LE may have one empty entry, and DESC to | |
5784 | LE may have two. */ | |
1c8f6a4d KLC |
5785 | if (elf_hash_table (info)->tls_sec != NULL) |
5786 | relocation -= (elf_hash_table (info)->tls_sec->vma + TP_OFFSET); | |
5787 | break; | |
fbaf61ad | 5788 | |
1c8f6a4d KLC |
5789 | case R_NDS32_TLS_IE_HI20: |
5790 | case R_NDS32_TLS_IE_LO12S2: | |
fbaf61ad NC |
5791 | case R_NDS32_TLS_DESC_HI20: |
5792 | case R_NDS32_TLS_DESC_LO12: | |
5793 | case R_NDS32_TLS_IE_LO12: | |
5794 | case R_NDS32_TLS_IEGP_HI20: | |
5795 | case R_NDS32_TLS_IEGP_LO12: | |
5796 | case R_NDS32_TLS_IEGP_LO12S2: | |
1c8f6a4d KLC |
5797 | { |
5798 | /* Relocation is to the entry for this symbol in the global | |
5799 | offset table. */ | |
fbaf61ad | 5800 | enum elf_nds32_tls_type tls_type, org_tls_type, eff_tls_type; |
1c8f6a4d KLC |
5801 | asection *srelgot; |
5802 | Elf_Internal_Rela outrel; | |
1c8f6a4d KLC |
5803 | bfd_byte *loc; |
5804 | int indx = 0; | |
5805 | ||
fbaf61ad NC |
5806 | eff_tls_type = org_tls_type = get_tls_type (r_type, h); |
5807 | ||
1c8f6a4d KLC |
5808 | BFD_ASSERT (sgot != NULL); |
5809 | if (h != NULL) | |
5810 | { | |
0a1b45a2 | 5811 | bool dyn; |
1c8f6a4d KLC |
5812 | |
5813 | off = h->got.offset; | |
fbaf61ad | 5814 | BFD_ASSERT (off != (bfd_vma) -1); |
1c8f6a4d KLC |
5815 | dyn = htab->root.dynamic_sections_created; |
5816 | tls_type = ((struct elf_nds32_link_hash_entry *) h)->tls_type; | |
0e1862bb L |
5817 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) |
5818 | && (!bfd_link_pic (info) | |
1c8f6a4d KLC |
5819 | || !SYMBOL_REFERENCES_LOCAL (info, h))) |
5820 | indx = h->dynindx; | |
5821 | } | |
5822 | else | |
5823 | { | |
1c8f6a4d KLC |
5824 | BFD_ASSERT (local_got_offsets != NULL |
5825 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
1c8f6a4d | 5826 | off = local_got_offsets[r_symndx]; |
1c8f6a4d KLC |
5827 | tls_type = elf32_nds32_local_got_tls_type (input_bfd)[r_symndx]; |
5828 | } | |
fbaf61ad | 5829 | |
1c8f6a4d KLC |
5830 | relocation = sgot->output_section->vma + sgot->output_offset + off; |
5831 | ||
fbaf61ad NC |
5832 | if (1 < ones32 (tls_type)) |
5833 | { | |
5834 | eff_tls_type = 1 << (fls (tls_type) - 1); | |
5835 | /* TLS model shall be handled in nds32_elf_unify_tls_model (). */ | |
5836 | ||
5837 | /* TLS model X -> LE is not implement yet! | |
5838 | workaround here! */ | |
5839 | if (eff_tls_type == GOT_TLS_LE) | |
5840 | { | |
5841 | eff_tls_type = 1 << (fls (tls_type ^ eff_tls_type) - 1); | |
5842 | } | |
5843 | } | |
1c8f6a4d KLC |
5844 | |
5845 | /* The offset must always be a multiple of 4. We use | |
5846 | the least significant bit to record whether we have | |
5847 | already processed this entry. */ | |
0a1b45a2 | 5848 | bool need_relocs = false; |
fbaf61ad NC |
5849 | srelgot = ehtab->srelgot; |
5850 | if ((bfd_link_pic (info) || indx != 0) | |
5851 | && (h == NULL || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5852 | || h->root.type != bfd_link_hash_undefweak)) | |
5853 | { | |
0a1b45a2 | 5854 | need_relocs = true; |
fbaf61ad NC |
5855 | BFD_ASSERT (srelgot != NULL); |
5856 | } | |
5857 | ||
5858 | if (off & 1) | |
5859 | { | |
5860 | off &= ~1; | |
5861 | relocation &= ~1; | |
5862 | ||
5863 | if (eff_tls_type & GOT_TLS_DESC) | |
5864 | { | |
5865 | relocation -= elf_gp (output_bfd); | |
5866 | if ((R_NDS32_TLS_DESC_HI20 == r_type) && (!need_relocs)) | |
5867 | { | |
5868 | /* TLS model shall be converted. */ | |
5869 | BFD_ASSERT(0); | |
5870 | } | |
5871 | } | |
5872 | else if (eff_tls_type & GOT_TLS_IEGP) | |
5873 | { | |
5874 | relocation -= elf_gp (output_bfd); | |
5875 | } | |
5876 | } | |
1c8f6a4d KLC |
5877 | else |
5878 | { | |
fbaf61ad | 5879 | if ((eff_tls_type & GOT_TLS_LE) && (tls_type ^ eff_tls_type)) |
1c8f6a4d | 5880 | { |
fbaf61ad NC |
5881 | /* TLS model workaround shall be applied. */ |
5882 | BFD_ASSERT(0); | |
1c8f6a4d | 5883 | } |
fbaf61ad | 5884 | else if (eff_tls_type & (GOT_TLS_IE | GOT_TLS_IEGP)) |
1c8f6a4d | 5885 | { |
fbaf61ad NC |
5886 | if (eff_tls_type & GOT_TLS_IEGP) |
5887 | relocation -= elf_gp(output_bfd); | |
5888 | ||
1c8f6a4d KLC |
5889 | if (need_relocs) |
5890 | { | |
fbaf61ad NC |
5891 | if (indx == 0) |
5892 | outrel.r_addend = gottpoff (info, relocation_sym); | |
1c8f6a4d KLC |
5893 | else |
5894 | outrel.r_addend = 0; | |
5895 | outrel.r_offset = (sgot->output_section->vma | |
fbaf61ad NC |
5896 | + sgot->output_offset + off); |
5897 | outrel.r_info = ELF32_R_INFO (indx, R_NDS32_TLS_TPOFF); | |
5898 | ||
5899 | elf32_nds32_add_dynreloc (output_bfd, info, srelgot, | |
5900 | &outrel); | |
1c8f6a4d KLC |
5901 | } |
5902 | else | |
fbaf61ad NC |
5903 | { |
5904 | bfd_put_32 (output_bfd, gottpoff (info, relocation_sym), | |
5905 | sgot->contents + off); | |
5906 | } | |
1c8f6a4d | 5907 | } |
fbaf61ad NC |
5908 | else if (eff_tls_type & GOT_TLS_DESC) |
5909 | { | |
5910 | relocation -= elf_gp (output_bfd); | |
5911 | if (need_relocs) | |
5912 | { | |
5913 | if (indx == 0) | |
5914 | outrel.r_addend = gottpoff (info, relocation_sym); | |
5915 | else | |
5916 | outrel.r_addend = 0; | |
5917 | outrel.r_offset = (sgot->output_section->vma | |
5918 | + sgot->output_offset + off); | |
5919 | outrel.r_info = ELF32_R_INFO (indx, R_NDS32_TLS_DESC); | |
5920 | ||
5921 | if (htab->tls_desc_trampoline) | |
5922 | { | |
5923 | asection *srelplt; | |
5924 | srelplt = ehtab->srelplt; | |
5925 | loc = srelplt->contents; | |
5926 | loc += htab->next_tls_desc_index++ * sizeof (Elf32_External_Rela); | |
5927 | BFD_ASSERT (loc + sizeof (Elf32_External_Rela) | |
5928 | <= srelplt->contents + srelplt->size); | |
5929 | ||
5930 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5931 | } | |
5932 | else | |
5933 | { | |
5934 | loc = srelgot->contents; | |
5935 | loc += srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
5936 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5937 | ++srelgot->reloc_count; | |
5938 | } | |
5939 | } | |
5940 | else | |
5941 | { | |
5942 | /* feed me! */ | |
5943 | bfd_put_32 (output_bfd, 0xdeadbeef, | |
5944 | sgot->contents + off); | |
5945 | bfd_put_32 (output_bfd, gottpoff (info, relocation_sym), | |
5946 | sgot->contents + off + 4); | |
5947 | patch_tls_desc_to_ie (contents, rel, input_bfd); | |
5948 | BFD_ASSERT(0); | |
5949 | } | |
5950 | } | |
5951 | else | |
5952 | { | |
5953 | /* TLS model workaround shall be applied. */ | |
5954 | BFD_ASSERT(0); | |
5955 | } | |
5956 | ||
5957 | if (h != NULL) | |
5958 | h->got.offset |= 1; | |
5959 | else | |
5960 | local_got_offsets[r_symndx] |= 1; | |
5961 | } | |
5962 | } | |
5963 | break; | |
5964 | /* DON'T fall through. */ | |
5965 | ||
5966 | default: | |
5967 | /* OLD_NDS32_RELOC. */ | |
5968 | ||
5969 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5970 | contents, offset, relocation, addend); | |
5971 | goto check_reloc; | |
5972 | } | |
5973 | ||
5974 | switch ((int) r_type) | |
5975 | { | |
35c08157 KLC |
5976 | case R_NDS32_20_RELA: |
5977 | case R_NDS32_5_RELA: | |
5978 | case R_NDS32_9_PCREL_RELA: | |
5979 | case R_NDS32_WORD_9_PCREL_RELA: | |
5980 | case R_NDS32_10_UPCREL_RELA: | |
5981 | case R_NDS32_15_PCREL_RELA: | |
5982 | case R_NDS32_17_PCREL_RELA: | |
5983 | case R_NDS32_25_PCREL_RELA: | |
5984 | case R_NDS32_25_ABS_RELA: | |
5985 | case R_NDS32_HI20_RELA: | |
5986 | case R_NDS32_LO12S3_RELA: | |
5987 | case R_NDS32_LO12S2_RELA: | |
5988 | case R_NDS32_LO12S2_DP_RELA: | |
5989 | case R_NDS32_LO12S2_SP_RELA: | |
5990 | case R_NDS32_LO12S1_RELA: | |
5991 | case R_NDS32_LO12S0_RELA: | |
5992 | case R_NDS32_LO12S0_ORI_RELA: | |
5993 | case R_NDS32_SDA16S3_RELA: | |
5994 | case R_NDS32_SDA17S2_RELA: | |
5995 | case R_NDS32_SDA18S1_RELA: | |
5996 | case R_NDS32_SDA19S0_RELA: | |
5997 | case R_NDS32_SDA15S3_RELA: | |
5998 | case R_NDS32_SDA15S2_RELA: | |
5999 | case R_NDS32_SDA12S2_DP_RELA: | |
6000 | case R_NDS32_SDA12S2_SP_RELA: | |
6001 | case R_NDS32_SDA15S1_RELA: | |
6002 | case R_NDS32_SDA15S0_RELA: | |
6003 | case R_NDS32_SDA_FP7U2_RELA: | |
6004 | case R_NDS32_9_PLTREL: | |
6005 | case R_NDS32_25_PLTREL: | |
6006 | case R_NDS32_GOT20: | |
6007 | case R_NDS32_GOT_HI20: | |
6008 | case R_NDS32_GOT_LO12: | |
6009 | case R_NDS32_GOT_LO15: | |
6010 | case R_NDS32_GOT_LO19: | |
6011 | case R_NDS32_GOT15S2_RELA: | |
6012 | case R_NDS32_GOT17S2_RELA: | |
6013 | case R_NDS32_GOTPC20: | |
6014 | case R_NDS32_GOTPC_HI20: | |
6015 | case R_NDS32_GOTPC_LO12: | |
6016 | case R_NDS32_GOTOFF: | |
6017 | case R_NDS32_GOTOFF_HI20: | |
6018 | case R_NDS32_GOTOFF_LO12: | |
6019 | case R_NDS32_GOTOFF_LO15: | |
6020 | case R_NDS32_GOTOFF_LO19: | |
6021 | case R_NDS32_PLTREL_HI20: | |
6022 | case R_NDS32_PLTREL_LO12: | |
6023 | case R_NDS32_PLT_GOTREL_HI20: | |
6024 | case R_NDS32_PLT_GOTREL_LO12: | |
6025 | case R_NDS32_PLT_GOTREL_LO15: | |
6026 | case R_NDS32_PLT_GOTREL_LO19: | |
6027 | case R_NDS32_PLT_GOTREL_LO20: | |
6028 | case R_NDS32_17IFC_PCREL_RELA: | |
6029 | case R_NDS32_10IFCU_PCREL_RELA: | |
1c8f6a4d KLC |
6030 | case R_NDS32_TLS_LE_HI20: |
6031 | case R_NDS32_TLS_LE_LO12: | |
6032 | case R_NDS32_TLS_IE_HI20: | |
6033 | case R_NDS32_TLS_IE_LO12S2: | |
6034 | case R_NDS32_TLS_LE_20: | |
6035 | case R_NDS32_TLS_LE_15S0: | |
6036 | case R_NDS32_TLS_LE_15S1: | |
6037 | case R_NDS32_TLS_LE_15S2: | |
fbaf61ad NC |
6038 | case R_NDS32_TLS_DESC_HI20: |
6039 | case R_NDS32_TLS_DESC_LO12: | |
6040 | case R_NDS32_TLS_IE_LO12: | |
6041 | case R_NDS32_TLS_IEGP_HI20: | |
6042 | case R_NDS32_TLS_IEGP_LO12: | |
6043 | case R_NDS32_TLS_IEGP_LO12S2: | |
35c08157 | 6044 | /* Instruction related relocs must handle endian properly. */ |
1c8f6a4d | 6045 | /* NOTE: PIC IS NOT HANDLE YET; DO IT LATER. */ |
35c08157 KLC |
6046 | r = nds32_elf_final_link_relocate (howto, input_bfd, |
6047 | input_section, contents, | |
6048 | rel->r_offset, relocation, | |
6049 | rel->r_addend); | |
6050 | break; | |
6051 | ||
6052 | default: | |
6053 | /* All other relocs can use default handler. */ | |
6054 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
6055 | contents, rel->r_offset, | |
6056 | relocation, rel->r_addend); | |
6057 | break; | |
6058 | } | |
6059 | ||
dc1e8a47 | 6060 | check_reloc: |
35c08157 KLC |
6061 | |
6062 | if (r != bfd_reloc_ok) | |
6063 | { | |
6064 | /* FIXME: This should be generic enough to go in a utility. */ | |
6065 | const char *name; | |
6066 | ||
6067 | if (h != NULL) | |
6068 | name = h->root.root.string; | |
6069 | else | |
6070 | { | |
6071 | name = bfd_elf_string_from_elf_section | |
6072 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
6073 | if (name == NULL || *name == '\0') | |
fd361982 | 6074 | name = bfd_section_name (sec); |
35c08157 KLC |
6075 | } |
6076 | ||
6077 | if (errmsg != NULL) | |
6078 | goto common_error; | |
6079 | ||
6080 | switch (r) | |
6081 | { | |
6082 | case bfd_reloc_overflow: | |
1a72702b AM |
6083 | (*info->callbacks->reloc_overflow) |
6084 | (info, (h ? &h->root : NULL), name, howto->name, | |
6085 | (bfd_vma) 0, input_bfd, input_section, offset); | |
35c08157 KLC |
6086 | break; |
6087 | ||
6088 | case bfd_reloc_undefined: | |
1a72702b | 6089 | (*info->callbacks->undefined_symbol) |
0a1b45a2 | 6090 | (info, name, input_bfd, input_section, offset, true); |
35c08157 KLC |
6091 | break; |
6092 | ||
6093 | case bfd_reloc_outofrange: | |
6094 | errmsg = _("internal error: out of range error"); | |
6095 | goto common_error; | |
6096 | ||
6097 | case bfd_reloc_notsupported: | |
6098 | errmsg = _("internal error: unsupported relocation error"); | |
6099 | goto common_error; | |
6100 | ||
6101 | case bfd_reloc_dangerous: | |
6102 | errmsg = _("internal error: dangerous error"); | |
6103 | goto common_error; | |
6104 | ||
6105 | default: | |
6106 | errmsg = _("internal error: unknown error"); | |
6107 | /* Fall through. */ | |
6108 | ||
dc1e8a47 | 6109 | common_error: |
1a72702b AM |
6110 | (*info->callbacks->warning) (info, errmsg, name, input_bfd, |
6111 | input_section, offset); | |
35c08157 KLC |
6112 | break; |
6113 | } | |
6114 | } | |
6115 | } | |
6116 | ||
fbaf61ad NC |
6117 | /* Resotre header size to avoid overflow load. */ |
6118 | if (elf_nds32_tdata (input_bfd)->hdr_size != 0) | |
6119 | symtab_hdr->sh_size = elf_nds32_tdata (input_bfd)->hdr_size; | |
6120 | ||
35c08157 KLC |
6121 | return ret; |
6122 | } | |
6123 | ||
6124 | /* Finish up dynamic symbol handling. We set the contents of various | |
6125 | dynamic sections here. */ | |
6126 | ||
0a1b45a2 | 6127 | static bool |
35c08157 KLC |
6128 | nds32_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, |
6129 | struct elf_link_hash_entry *h, Elf_Internal_Sym *sym) | |
6130 | { | |
fbaf61ad NC |
6131 | struct elf_link_hash_table *ehtab; |
6132 | struct elf_nds32_link_hash_entry *hent; | |
35c08157 KLC |
6133 | bfd_byte *loc; |
6134 | ||
fbaf61ad NC |
6135 | ehtab = elf_hash_table (info); |
6136 | hent = (struct elf_nds32_link_hash_entry *) h; | |
35c08157 KLC |
6137 | |
6138 | if (h->plt.offset != (bfd_vma) - 1) | |
6139 | { | |
6140 | asection *splt; | |
6141 | asection *sgot; | |
6142 | asection *srela; | |
6143 | ||
6144 | bfd_vma plt_index; | |
6145 | bfd_vma got_offset; | |
6146 | bfd_vma local_plt_offset; | |
6147 | Elf_Internal_Rela rela; | |
6148 | ||
6149 | /* This symbol has an entry in the procedure linkage table. Set | |
6150 | it up. */ | |
6151 | ||
6152 | BFD_ASSERT (h->dynindx != -1); | |
6153 | ||
fbaf61ad NC |
6154 | splt = ehtab->splt; |
6155 | sgot = ehtab->sgotplt; | |
6156 | srela = ehtab->srelplt; | |
35c08157 KLC |
6157 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); |
6158 | ||
6159 | /* Get the index in the procedure linkage table which | |
6160 | corresponds to this symbol. This is the index of this symbol | |
6161 | in all the symbols for which we are making plt entries. The | |
6162 | first entry in the procedure linkage table is reserved. */ | |
6163 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
6164 | ||
6165 | /* Get the offset into the .got table of the entry that | |
6166 | corresponds to this function. Each .got entry is 4 bytes. | |
6167 | The first three are reserved. */ | |
6168 | got_offset = (plt_index + 3) * 4; | |
6169 | ||
6170 | /* Fill in the entry in the procedure linkage table. */ | |
0e1862bb | 6171 | if (!bfd_link_pic (info)) |
35c08157 KLC |
6172 | { |
6173 | unsigned long insn; | |
6174 | ||
6175 | insn = PLT_ENTRY_WORD0 + (((sgot->output_section->vma | |
6176 | + sgot->output_offset + got_offset) >> 12) | |
6177 | & 0xfffff); | |
6178 | bfd_putb32 (insn, splt->contents + h->plt.offset); | |
6179 | ||
6180 | insn = PLT_ENTRY_WORD1 + (((sgot->output_section->vma | |
6181 | + sgot->output_offset + got_offset) & 0x0fff) | |
6182 | >> 2); | |
6183 | bfd_putb32 (insn, splt->contents + h->plt.offset + 4); | |
6184 | ||
6185 | insn = PLT_ENTRY_WORD2; | |
6186 | bfd_putb32 (insn, splt->contents + h->plt.offset + 8); | |
6187 | ||
6188 | insn = PLT_ENTRY_WORD3 + (plt_index & 0x7ffff); | |
6189 | bfd_putb32 (insn, splt->contents + h->plt.offset + 12); | |
6190 | ||
6191 | insn = PLT_ENTRY_WORD4 | |
6192 | + (((unsigned int) ((-(h->plt.offset + 16)) >> 1)) & 0xffffff); | |
6193 | bfd_putb32 (insn, splt->contents + h->plt.offset + 16); | |
6194 | local_plt_offset = 12; | |
6195 | } | |
6196 | else | |
6197 | { | |
6198 | /* sda_base must be set at this time. */ | |
6199 | unsigned long insn; | |
6200 | long offset; | |
6201 | ||
35c08157 KLC |
6202 | offset = sgot->output_section->vma + sgot->output_offset + got_offset |
6203 | - elf_gp (output_bfd); | |
6204 | insn = PLT_PIC_ENTRY_WORD0 + ((offset >> 12) & 0xfffff); | |
6205 | bfd_putb32 (insn, splt->contents + h->plt.offset); | |
6206 | ||
6207 | insn = PLT_PIC_ENTRY_WORD1 + (offset & 0xfff); | |
6208 | bfd_putb32 (insn, splt->contents + h->plt.offset + 4); | |
6209 | ||
6210 | insn = PLT_PIC_ENTRY_WORD2; | |
6211 | bfd_putb32 (insn, splt->contents + h->plt.offset + 8); | |
6212 | ||
6213 | insn = PLT_PIC_ENTRY_WORD3; | |
6214 | bfd_putb32 (insn, splt->contents + h->plt.offset + 12); | |
6215 | ||
6216 | insn = PLT_PIC_ENTRY_WORD4 + (plt_index & 0x7fffff); | |
6217 | bfd_putb32 (insn, splt->contents + h->plt.offset + 16); | |
6218 | ||
6219 | insn = PLT_PIC_ENTRY_WORD5 | |
6220 | + (((unsigned int) ((-(h->plt.offset + 20)) >> 1)) & 0xffffff); | |
6221 | bfd_putb32 (insn, splt->contents + h->plt.offset + 20); | |
6222 | ||
6223 | local_plt_offset = 16; | |
6224 | } | |
6225 | ||
6226 | /* Fill in the entry in the global offset table, | |
6227 | so it will fall through to the next instruction for the first time. */ | |
6228 | bfd_put_32 (output_bfd, | |
6229 | (splt->output_section->vma + splt->output_offset | |
6230 | + h->plt.offset + local_plt_offset), | |
6231 | sgot->contents + got_offset); | |
6232 | ||
6233 | /* Fill in the entry in the .rela.plt section. */ | |
6234 | rela.r_offset = (sgot->output_section->vma | |
6235 | + sgot->output_offset + got_offset); | |
6236 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_JMP_SLOT); | |
6237 | rela.r_addend = 0; | |
6238 | loc = srela->contents; | |
6239 | loc += plt_index * sizeof (Elf32_External_Rela); | |
6240 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
6241 | ||
6242 | if (!h->def_regular) | |
6243 | { | |
6244 | /* Mark the symbol as undefined, rather than as defined in | |
6245 | the .plt section. Leave the value alone. */ | |
6246 | sym->st_shndx = SHN_UNDEF; | |
6247 | if (!h->ref_regular_nonweak) | |
6248 | sym->st_value = 0; | |
6249 | } | |
6250 | } | |
6251 | ||
fbaf61ad NC |
6252 | if (h->got.offset != (bfd_vma) - 1 |
6253 | && hent->tls_type == GOT_NORMAL) | |
35c08157 KLC |
6254 | { |
6255 | asection *sgot; | |
fbaf61ad | 6256 | asection *srelagot; |
35c08157 KLC |
6257 | Elf_Internal_Rela rela; |
6258 | ||
6259 | /* This symbol has an entry in the global offset table. | |
6260 | Set it up. */ | |
6261 | ||
fbaf61ad NC |
6262 | sgot = ehtab->sgot; |
6263 | srelagot = ehtab->srelgot; | |
6264 | BFD_ASSERT (sgot != NULL && srelagot != NULL); | |
35c08157 KLC |
6265 | |
6266 | rela.r_offset = (sgot->output_section->vma | |
6267 | + sgot->output_offset + (h->got.offset & ~1)); | |
6268 | ||
6269 | /* If this is a -Bsymbolic link, and the symbol is defined | |
6270 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
6271 | the symbol was forced to be local because of a version file. | |
6272 | The entry in the global offset table will already have been | |
6273 | initialized in the relocate_section function. */ | |
fbaf61ad NC |
6274 | if ((bfd_link_pic (info) |
6275 | && (info->symbolic || h->dynindx == -1 || h->forced_local) | |
6276 | && h->def_regular) | |
6277 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 KLC |
6278 | { |
6279 | rela.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
6280 | rela.r_addend = (h->root.u.def.value | |
6281 | + h->root.u.def.section->output_section->vma | |
6282 | + h->root.u.def.section->output_offset); | |
fbaf61ad NC |
6283 | |
6284 | if ((h->got.offset & 1) == 0) | |
6285 | { | |
6286 | bfd_put_32 (output_bfd, rela.r_addend, | |
6287 | sgot->contents + h->got.offset); | |
6288 | } | |
35c08157 KLC |
6289 | } |
6290 | else | |
6291 | { | |
6292 | BFD_ASSERT ((h->got.offset & 1) == 0); | |
6293 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
6294 | sgot->contents + h->got.offset); | |
6295 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_GLOB_DAT); | |
6296 | rela.r_addend = 0; | |
6297 | } | |
6298 | ||
fbaf61ad NC |
6299 | loc = srelagot->contents; |
6300 | loc += srelagot->reloc_count * sizeof (Elf32_External_Rela); | |
35c08157 | 6301 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
fbaf61ad NC |
6302 | ++srelagot->reloc_count; |
6303 | BFD_ASSERT (loc < (srelagot->contents + srelagot->size)); | |
35c08157 KLC |
6304 | } |
6305 | ||
6306 | if (h->needs_copy) | |
6307 | { | |
6308 | asection *s; | |
6309 | Elf_Internal_Rela rela; | |
6310 | ||
6311 | /* This symbols needs a copy reloc. Set it up. */ | |
6312 | ||
6313 | BFD_ASSERT (h->dynindx != -1 | |
6314 | && (h->root.type == bfd_link_hash_defined | |
6315 | || h->root.type == bfd_link_hash_defweak)); | |
6316 | ||
6317 | s = bfd_get_section_by_name (h->root.u.def.section->owner, ".rela.bss"); | |
6318 | BFD_ASSERT (s != NULL); | |
6319 | ||
6320 | rela.r_offset = (h->root.u.def.value | |
6321 | + h->root.u.def.section->output_section->vma | |
6322 | + h->root.u.def.section->output_offset); | |
6323 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_COPY); | |
6324 | rela.r_addend = 0; | |
6325 | loc = s->contents; | |
6326 | loc += s->reloc_count * sizeof (Elf32_External_Rela); | |
6327 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
6328 | ++s->reloc_count; | |
6329 | } | |
6330 | ||
6331 | /* Mark some specially defined symbols as absolute. */ | |
6332 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
6333 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
6334 | sym->st_shndx = SHN_ABS; | |
6335 | ||
0a1b45a2 | 6336 | return true; |
35c08157 KLC |
6337 | } |
6338 | ||
6339 | ||
6340 | /* Finish up the dynamic sections. */ | |
6341 | ||
0a1b45a2 | 6342 | static bool |
35c08157 KLC |
6343 | nds32_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
6344 | { | |
35c08157 KLC |
6345 | bfd *dynobj; |
6346 | asection *sdyn; | |
fbaf61ad NC |
6347 | asection *sgotplt; |
6348 | struct elf_link_hash_table *ehtab; | |
6349 | struct elf_nds32_link_hash_table *htab; | |
35c08157 | 6350 | |
fbaf61ad | 6351 | ehtab = elf_hash_table (info); |
35c08157 | 6352 | htab = nds32_elf_hash_table (info); |
fbaf61ad | 6353 | if (htab == NULL) |
0a1b45a2 | 6354 | return false; |
fbaf61ad NC |
6355 | |
6356 | dynobj = elf_hash_table (info)->dynobj; | |
35c08157 | 6357 | |
fbaf61ad NC |
6358 | sgotplt = ehtab->sgotplt; |
6359 | /* A broken linker script might have discarded the dynamic sections. | |
6360 | Catch this here so that we do not seg-fault later on. */ | |
6361 | if (sgotplt != NULL && bfd_is_abs_section (sgotplt->output_section)) | |
0a1b45a2 | 6362 | return false; |
35c08157 KLC |
6363 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
6364 | ||
fbaf61ad | 6365 | if (elf_hash_table (info)->dynamic_sections_created) |
35c08157 KLC |
6366 | { |
6367 | asection *splt; | |
6368 | Elf32_External_Dyn *dyncon, *dynconend; | |
6369 | ||
fbaf61ad | 6370 | BFD_ASSERT (sgotplt != NULL && sdyn != NULL); |
35c08157 KLC |
6371 | |
6372 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
6373 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
6374 | ||
6375 | for (; dyncon < dynconend; dyncon++) | |
6376 | { | |
6377 | Elf_Internal_Dyn dyn; | |
6378 | asection *s; | |
6379 | ||
6380 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
6381 | ||
6382 | switch (dyn.d_tag) | |
6383 | { | |
6384 | default: | |
6385 | break; | |
6386 | ||
6387 | case DT_PLTGOT: | |
fbaf61ad | 6388 | /* name = ".got"; */ |
fb9b7fbf | 6389 | s = ehtab->sgot; |
35c08157 KLC |
6390 | goto get_vma; |
6391 | case DT_JMPREL: | |
fb9b7fbf | 6392 | s = ehtab->srelplt; |
dc1e8a47 | 6393 | get_vma: |
fbaf61ad | 6394 | BFD_ASSERT (s != NULL); |
fb9b7fbf | 6395 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
35c08157 KLC |
6396 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
6397 | break; | |
6398 | ||
6399 | case DT_PLTRELSZ: | |
fb9b7fbf | 6400 | s = ehtab->srelplt; |
fbaf61ad | 6401 | BFD_ASSERT (s != NULL); |
35c08157 KLC |
6402 | dyn.d_un.d_val = s->size; |
6403 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6404 | break; | |
fbaf61ad NC |
6405 | |
6406 | case DT_RELASZ: | |
6407 | /* My reading of the SVR4 ABI indicates that the | |
6408 | procedure linkage table relocs (DT_JMPREL) should be | |
6409 | included in the overall relocs (DT_RELA). This is | |
6410 | what Solaris does. However, UnixWare can not handle | |
6411 | that case. Therefore, we override the DT_RELASZ entry | |
6412 | here to make it not include the JMPREL relocs. Since | |
6413 | the linker script arranges for .rela.plt to follow all | |
6414 | other relocation sections, we don't have to worry | |
6415 | about changing the DT_RELA entry. */ | |
6416 | if (ehtab->srelplt != NULL) | |
6417 | { | |
fb9b7fbf | 6418 | s = ehtab->srelplt; |
fbaf61ad NC |
6419 | dyn.d_un.d_val -= s->size; |
6420 | } | |
6421 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6422 | break; | |
6423 | ||
6424 | case DT_TLSDESC_PLT: | |
6425 | s = htab->root.splt; | |
6426 | dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset | |
9bcc30e4 | 6427 | + htab->root.tlsdesc_plt); |
fbaf61ad NC |
6428 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
6429 | break; | |
6430 | ||
6431 | case DT_TLSDESC_GOT: | |
6432 | s = htab->root.sgot; | |
6433 | dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset | |
9bcc30e4 | 6434 | + htab->root.tlsdesc_got); |
fbaf61ad NC |
6435 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
6436 | break; | |
35c08157 KLC |
6437 | } |
6438 | } | |
6439 | ||
6440 | /* Fill in the first entry in the procedure linkage table. */ | |
fbaf61ad | 6441 | splt = ehtab->splt; |
35c08157 KLC |
6442 | if (splt && splt->size > 0) |
6443 | { | |
0e1862bb | 6444 | if (bfd_link_pic (info)) |
35c08157 KLC |
6445 | { |
6446 | unsigned long insn; | |
6447 | long offset; | |
6448 | ||
fbaf61ad NC |
6449 | offset = sgotplt->output_section->vma + sgotplt->output_offset + 4 |
6450 | - elf_gp (output_bfd); | |
35c08157 KLC |
6451 | insn = PLT0_PIC_ENTRY_WORD0 | ((offset >> 12) & 0xfffff); |
6452 | bfd_putb32 (insn, splt->contents); | |
6453 | ||
35c08157 KLC |
6454 | /* here has a typo? */ |
6455 | insn = PLT0_PIC_ENTRY_WORD1 | (offset & 0xfff); | |
6456 | bfd_putb32 (insn, splt->contents + 4); | |
6457 | ||
6458 | insn = PLT0_PIC_ENTRY_WORD2; | |
6459 | bfd_putb32 (insn, splt->contents + 8); | |
6460 | ||
6461 | insn = PLT0_PIC_ENTRY_WORD3; | |
6462 | bfd_putb32 (insn, splt->contents + 12); | |
6463 | ||
6464 | insn = PLT0_PIC_ENTRY_WORD4; | |
6465 | bfd_putb32 (insn, splt->contents + 16); | |
6466 | ||
6467 | insn = PLT0_PIC_ENTRY_WORD5; | |
6468 | bfd_putb32 (insn, splt->contents + 20); | |
6469 | } | |
6470 | else | |
6471 | { | |
6472 | unsigned long insn; | |
6473 | unsigned long addr; | |
6474 | ||
6475 | /* addr = .got + 4 */ | |
fbaf61ad | 6476 | addr = sgotplt->output_section->vma + sgotplt->output_offset + 4; |
35c08157 KLC |
6477 | insn = PLT0_ENTRY_WORD0 | ((addr >> 12) & 0xfffff); |
6478 | bfd_putb32 (insn, splt->contents); | |
6479 | ||
6480 | insn = PLT0_ENTRY_WORD1 | (addr & 0x0fff); | |
6481 | bfd_putb32 (insn, splt->contents + 4); | |
6482 | ||
6483 | insn = PLT0_ENTRY_WORD2; | |
6484 | bfd_putb32 (insn, splt->contents + 8); | |
6485 | ||
6486 | insn = PLT0_ENTRY_WORD3; | |
6487 | bfd_putb32 (insn, splt->contents + 12); | |
6488 | ||
6489 | insn = PLT0_ENTRY_WORD4; | |
6490 | bfd_putb32 (insn, splt->contents + 16); | |
6491 | } | |
6492 | ||
6493 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
6494 | PLT_ENTRY_SIZE; | |
6495 | } | |
fbaf61ad | 6496 | |
9bcc30e4 | 6497 | if (htab->root.tlsdesc_plt) |
fbaf61ad NC |
6498 | { |
6499 | /* Calculate addresses. */ | |
6500 | asection *sgot = sgot = ehtab->sgot; | |
6501 | bfd_vma pltgot = sgotplt->output_section->vma | |
6502 | + sgotplt->output_offset; | |
6503 | bfd_vma tlsdesc_got = sgot->output_section->vma + sgot->output_offset | |
9bcc30e4 | 6504 | + htab->root.tlsdesc_got; |
fbaf61ad NC |
6505 | |
6506 | /* Get GP offset. */ | |
6507 | pltgot -= elf_gp (output_bfd) - 4; /* PLTGOT[1] */ | |
6508 | tlsdesc_got -= elf_gp (output_bfd); | |
6509 | ||
6510 | /* Do relocation. */ | |
6511 | dl_tlsdesc_lazy_trampoline[0] += ((1 << 20) - 1) & (tlsdesc_got >> 12); | |
6512 | dl_tlsdesc_lazy_trampoline[1] += 0xfff & tlsdesc_got; | |
6513 | dl_tlsdesc_lazy_trampoline[4] += ((1 << 20) - 1) & (pltgot >> 12); | |
6514 | dl_tlsdesc_lazy_trampoline[5] += 0xfff & pltgot; | |
6515 | ||
6516 | /* Insert .plt. */ | |
9bcc30e4 | 6517 | nds32_put_trampoline (splt->contents + htab->root.tlsdesc_plt, |
fbaf61ad NC |
6518 | dl_tlsdesc_lazy_trampoline, |
6519 | ARRAY_SIZE (dl_tlsdesc_lazy_trampoline)); | |
6520 | } | |
35c08157 KLC |
6521 | } |
6522 | ||
6523 | /* Fill in the first three entries in the global offset table. */ | |
fbaf61ad | 6524 | if (sgotplt && sgotplt->size > 0) |
35c08157 KLC |
6525 | { |
6526 | if (sdyn == NULL) | |
fbaf61ad | 6527 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents); |
35c08157 KLC |
6528 | else |
6529 | bfd_put_32 (output_bfd, | |
6530 | sdyn->output_section->vma + sdyn->output_offset, | |
fbaf61ad NC |
6531 | sgotplt->contents); |
6532 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4); | |
6533 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8); | |
35c08157 | 6534 | |
fbaf61ad | 6535 | elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4; |
35c08157 KLC |
6536 | } |
6537 | ||
0a1b45a2 | 6538 | return true; |
35c08157 KLC |
6539 | } |
6540 | \f | |
6541 | ||
6542 | /* Set the right machine number. */ | |
6543 | ||
0a1b45a2 | 6544 | static bool |
35c08157 KLC |
6545 | nds32_elf_object_p (bfd *abfd) |
6546 | { | |
6547 | static unsigned int cur_arch = 0; | |
6548 | ||
6549 | if (E_N1_ARCH != (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH)) | |
6550 | { | |
6551 | /* E_N1_ARCH is a wild card, so it is set only when no others exist. */ | |
6552 | cur_arch = (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH); | |
6553 | } | |
6554 | ||
6555 | switch (cur_arch) | |
6556 | { | |
6557 | default: | |
6558 | case E_N1_ARCH: | |
6559 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1); | |
6560 | break; | |
6561 | case E_N1H_ARCH: | |
6562 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h); | |
6563 | break; | |
6564 | case E_NDS_ARCH_STAR_V2_0: | |
6565 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v2); | |
6566 | break; | |
6567 | case E_NDS_ARCH_STAR_V3_0: | |
6568 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v3); | |
6569 | break; | |
6570 | case E_NDS_ARCH_STAR_V3_M: | |
6571 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v3m); | |
6572 | break; | |
6573 | } | |
6574 | ||
0a1b45a2 | 6575 | return true; |
35c08157 KLC |
6576 | } |
6577 | ||
6578 | /* Store the machine number in the flags field. */ | |
6579 | ||
0a1b45a2 | 6580 | static bool |
cc364be6 | 6581 | nds32_elf_final_write_processing (bfd *abfd) |
35c08157 KLC |
6582 | { |
6583 | unsigned long val; | |
6584 | static unsigned int cur_mach = 0; | |
6585 | ||
6586 | if (bfd_mach_n1 != bfd_get_mach (abfd)) | |
6587 | { | |
6588 | cur_mach = bfd_get_mach (abfd); | |
6589 | } | |
6590 | ||
6591 | switch (cur_mach) | |
6592 | { | |
6593 | case bfd_mach_n1: | |
6594 | /* Only happen when object is empty, since the case is abandon. */ | |
6595 | val = E_N1_ARCH; | |
6596 | val |= E_NDS_ABI_AABI; | |
6597 | val |= E_NDS32_ELF_VER_1_4; | |
6598 | break; | |
6599 | case bfd_mach_n1h: | |
6600 | val = E_N1H_ARCH; | |
6601 | break; | |
6602 | case bfd_mach_n1h_v2: | |
6603 | val = E_NDS_ARCH_STAR_V2_0; | |
6604 | break; | |
6605 | case bfd_mach_n1h_v3: | |
6606 | val = E_NDS_ARCH_STAR_V3_0; | |
6607 | break; | |
6608 | case bfd_mach_n1h_v3m: | |
6609 | val = E_NDS_ARCH_STAR_V3_M; | |
6610 | break; | |
6611 | default: | |
6612 | val = 0; | |
6613 | break; | |
6614 | } | |
6615 | ||
6616 | elf_elfheader (abfd)->e_flags &= ~EF_NDS_ARCH; | |
6617 | elf_elfheader (abfd)->e_flags |= val; | |
cc364be6 | 6618 | return _bfd_elf_final_write_processing (abfd); |
35c08157 KLC |
6619 | } |
6620 | ||
6621 | /* Function to keep NDS32 specific file flags. */ | |
6622 | ||
0a1b45a2 | 6623 | static bool |
35c08157 KLC |
6624 | nds32_elf_set_private_flags (bfd *abfd, flagword flags) |
6625 | { | |
6626 | BFD_ASSERT (!elf_flags_init (abfd) | |
6627 | || elf_elfheader (abfd)->e_flags == flags); | |
6628 | ||
6629 | elf_elfheader (abfd)->e_flags = flags; | |
0a1b45a2 AM |
6630 | elf_flags_init (abfd) = true; |
6631 | return true; | |
35c08157 KLC |
6632 | } |
6633 | ||
6634 | static unsigned int | |
6635 | convert_e_flags (unsigned int e_flags, unsigned int arch) | |
6636 | { | |
6637 | if ((e_flags & EF_NDS_ARCH) == E_NDS_ARCH_STAR_V0_9) | |
6638 | { | |
6639 | /* From 0.9 to 1.0. */ | |
6640 | e_flags = (e_flags & (~EF_NDS_ARCH)) | E_NDS_ARCH_STAR_V1_0; | |
6641 | ||
6642 | /* Invert E_NDS32_HAS_NO_MAC_INST. */ | |
6643 | e_flags ^= E_NDS32_HAS_NO_MAC_INST; | |
6644 | if (arch == E_NDS_ARCH_STAR_V1_0) | |
6645 | { | |
6646 | /* Done. */ | |
6647 | return e_flags; | |
6648 | } | |
6649 | } | |
6650 | ||
6651 | /* From 1.0 to 2.0. */ | |
6652 | e_flags = (e_flags & (~EF_NDS_ARCH)) | E_NDS_ARCH_STAR_V2_0; | |
6653 | ||
6654 | /* Clear E_NDS32_HAS_MFUSR_PC_INST. */ | |
6655 | e_flags &= ~E_NDS32_HAS_MFUSR_PC_INST; | |
6656 | ||
6657 | /* Invert E_NDS32_HAS_NO_MAC_INST. */ | |
6658 | e_flags ^= E_NDS32_HAS_NO_MAC_INST; | |
6659 | return e_flags; | |
6660 | } | |
6661 | ||
0a1b45a2 | 6662 | static bool |
35c08157 KLC |
6663 | nds32_check_vec_size (bfd *ibfd) |
6664 | { | |
6665 | static unsigned int nds32_vec_size = 0; | |
6666 | ||
6667 | asection *sec_t = NULL; | |
6668 | bfd_byte *contents = NULL; | |
6669 | ||
6670 | sec_t = bfd_get_section_by_name (ibfd, ".nds32_e_flags"); | |
6671 | ||
6672 | if (sec_t && sec_t->size >= 4) | |
6673 | { | |
6674 | /* Get vec_size in file. */ | |
6675 | unsigned int flag_t; | |
6676 | ||
0a1b45a2 | 6677 | nds32_get_section_contents (ibfd, sec_t, &contents, true); |
35c08157 KLC |
6678 | flag_t = bfd_get_32 (ibfd, contents); |
6679 | ||
6680 | /* The value could only be 4 or 16. */ | |
6681 | ||
6682 | if (!nds32_vec_size) | |
6683 | /* Set if not set yet. */ | |
6684 | nds32_vec_size = (flag_t & 0x3); | |
6685 | else if (nds32_vec_size != (flag_t & 0x3)) | |
6686 | { | |
4eca0228 | 6687 | _bfd_error_handler |
695344c0 | 6688 | /* xgettext:c-format */ |
871b3ab2 | 6689 | (_("%pB: ISR vector size mismatch" |
4eca0228 AM |
6690 | " with previous modules, previous %u-byte, current %u-byte"), |
6691 | ibfd, | |
6692 | nds32_vec_size == 1 ? 4 : nds32_vec_size == 2 ? 16 : 0xffffffff, | |
6693 | (flag_t & 0x3) == 1 ? 4 : (flag_t & 0x3) == 2 ? 16 : 0xffffffff); | |
0a1b45a2 | 6694 | return false; |
35c08157 KLC |
6695 | } |
6696 | else | |
6697 | /* Only keep the first vec_size section. */ | |
6698 | sec_t->flags |= SEC_EXCLUDE; | |
6699 | } | |
6700 | ||
0a1b45a2 | 6701 | return true; |
35c08157 KLC |
6702 | } |
6703 | ||
6704 | /* Merge backend specific data from an object file to the output | |
6705 | object file when linking. */ | |
6706 | ||
0a1b45a2 | 6707 | static bool |
50e03d47 | 6708 | nds32_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
35c08157 | 6709 | { |
50e03d47 | 6710 | bfd *obfd = info->output_bfd; |
35c08157 KLC |
6711 | flagword out_flags; |
6712 | flagword in_flags; | |
6713 | flagword out_16regs; | |
6714 | flagword in_no_mac; | |
6715 | flagword out_no_mac; | |
6716 | flagword in_16regs; | |
6717 | flagword out_version; | |
6718 | flagword in_version; | |
6719 | flagword out_fpu_config; | |
6720 | flagword in_fpu_config; | |
6721 | ||
6b728d32 AM |
6722 | /* FIXME: What should be checked when linking shared libraries? */ |
6723 | if ((ibfd->flags & DYNAMIC) != 0) | |
0a1b45a2 | 6724 | return true; |
6b728d32 | 6725 | |
35c08157 KLC |
6726 | /* TODO: Revise to use object-attributes instead. */ |
6727 | if (!nds32_check_vec_size (ibfd)) | |
0a1b45a2 | 6728 | return false; |
35c08157 KLC |
6729 | |
6730 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
6731 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 6732 | return true; |
35c08157 KLC |
6733 | |
6734 | if (bfd_little_endian (ibfd) != bfd_little_endian (obfd)) | |
6735 | { | |
4eca0228 | 6736 | _bfd_error_handler |
38f14ab8 | 6737 | (_("%pB: warning: endian mismatch with previous modules"), ibfd); |
35c08157 KLC |
6738 | |
6739 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 6740 | return false; |
35c08157 KLC |
6741 | } |
6742 | ||
fbaf61ad NC |
6743 | /* -B option in objcopy cannot work as expected. e_flags = 0 shall be |
6744 | treat as generic one without checking and merging. */ | |
6745 | if (elf_elfheader (ibfd)->e_flags) | |
35c08157 | 6746 | { |
fbaf61ad NC |
6747 | in_version = elf_elfheader (ibfd)->e_flags & EF_NDS32_ELF_VERSION; |
6748 | if (in_version == E_NDS32_ELF_VER_1_2) | |
35c08157 | 6749 | { |
fbaf61ad NC |
6750 | _bfd_error_handler |
6751 | (_("%pB: warning: older version of object file encountered, " | |
6752 | "please recompile with current tool chain"), ibfd); | |
35c08157 | 6753 | } |
35c08157 | 6754 | |
fbaf61ad NC |
6755 | /* We may need to merge V1 and V2 arch object files to V2. */ |
6756 | if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6757 | != (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)) | |
35c08157 | 6758 | { |
fbaf61ad NC |
6759 | /* Need to convert version. */ |
6760 | if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6761 | == E_NDS_ARCH_STAR_RESERVED) | |
6762 | { | |
6763 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
6764 | } | |
6765 | else if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6766 | == E_NDS_ARCH_STAR_V3_M | |
6767 | && (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH) | |
6768 | == E_NDS_ARCH_STAR_V3_0) | |
6769 | { | |
6770 | elf_elfheader (ibfd)->e_flags = | |
6771 | (elf_elfheader (ibfd)->e_flags & (~EF_NDS_ARCH)) | |
6772 | | E_NDS_ARCH_STAR_V3_0; | |
6773 | } | |
6774 | else if ((elf_elfheader (obfd)->e_flags & EF_NDS_ARCH) | |
6775 | == E_NDS_ARCH_STAR_V0_9 | |
6776 | || (elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6777 | > (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)) | |
6778 | { | |
6779 | elf_elfheader (obfd)->e_flags = | |
6780 | convert_e_flags (elf_elfheader (obfd)->e_flags, | |
6781 | (elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH)); | |
6782 | } | |
6783 | else | |
6784 | { | |
6785 | elf_elfheader (ibfd)->e_flags = | |
6786 | convert_e_flags (elf_elfheader (ibfd)->e_flags, | |
6787 | (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)); | |
6788 | } | |
35c08157 KLC |
6789 | } |
6790 | ||
fbaf61ad NC |
6791 | /* Extract some flags. */ |
6792 | in_flags = elf_elfheader (ibfd)->e_flags | |
6793 | & (~(E_NDS32_HAS_REDUCED_REGS | EF_NDS32_ELF_VERSION | |
6794 | | E_NDS32_HAS_NO_MAC_INST | E_NDS32_FPU_REG_CONF)); | |
6795 | ||
6796 | /* The following flags need special treatment. */ | |
6797 | in_16regs = elf_elfheader (ibfd)->e_flags & E_NDS32_HAS_REDUCED_REGS; | |
6798 | in_no_mac = elf_elfheader (ibfd)->e_flags & E_NDS32_HAS_NO_MAC_INST; | |
6799 | in_fpu_config = elf_elfheader (ibfd)->e_flags & E_NDS32_FPU_REG_CONF; | |
6800 | ||
6801 | /* Extract some flags. */ | |
6802 | out_flags = elf_elfheader (obfd)->e_flags | |
6803 | & (~(E_NDS32_HAS_REDUCED_REGS | EF_NDS32_ELF_VERSION | |
6804 | | E_NDS32_HAS_NO_MAC_INST | E_NDS32_FPU_REG_CONF)); | |
6805 | ||
6806 | /* The following flags need special treatment. */ | |
6807 | out_16regs = elf_elfheader (obfd)->e_flags & E_NDS32_HAS_REDUCED_REGS; | |
6808 | out_no_mac = elf_elfheader (obfd)->e_flags & E_NDS32_HAS_NO_MAC_INST; | |
6809 | out_fpu_config = elf_elfheader (obfd)->e_flags & E_NDS32_FPU_REG_CONF; | |
6810 | out_version = elf_elfheader (obfd)->e_flags & EF_NDS32_ELF_VERSION; | |
6811 | if (!elf_flags_init (obfd)) | |
6812 | { | |
6813 | /* If the input is the default architecture then do not | |
6814 | bother setting the flags for the output architecture, | |
6815 | instead allow future merges to do this. If no future | |
6816 | merges ever set these flags then they will retain their | |
6817 | unitialised values, which surprise surprise, correspond | |
6818 | to the default values. */ | |
6819 | if (bfd_get_arch_info (ibfd)->the_default) | |
0a1b45a2 | 6820 | return true; |
fbaf61ad | 6821 | |
0a1b45a2 | 6822 | elf_flags_init (obfd) = true; |
fbaf61ad | 6823 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; |
35c08157 | 6824 | |
fbaf61ad NC |
6825 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) |
6826 | && bfd_get_arch_info (obfd)->the_default) | |
6827 | { | |
6828 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
6829 | bfd_get_mach (ibfd)); | |
6830 | } | |
35c08157 | 6831 | |
0a1b45a2 | 6832 | return true; |
fbaf61ad | 6833 | } |
35c08157 | 6834 | |
fbaf61ad NC |
6835 | /* Check flag compatibility. */ |
6836 | if ((in_flags & EF_NDS_ABI) != (out_flags & EF_NDS_ABI)) | |
35c08157 | 6837 | { |
4eca0228 | 6838 | _bfd_error_handler |
fbaf61ad | 6839 | (_("%pB: error: ABI mismatch with previous modules"), ibfd); |
35c08157 | 6840 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 6841 | return false; |
35c08157 | 6842 | } |
35c08157 | 6843 | |
fbaf61ad NC |
6844 | if ((in_flags & EF_NDS_ARCH) != (out_flags & EF_NDS_ARCH)) |
6845 | { | |
6846 | if (((in_flags & EF_NDS_ARCH) != E_N1_ARCH)) | |
6847 | { | |
6848 | _bfd_error_handler | |
6849 | (_("%pB: error: instruction set mismatch with previous modules"), | |
6850 | ibfd); | |
6851 | ||
6852 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 6853 | return false; |
fbaf61ad NC |
6854 | } |
6855 | } | |
6856 | ||
6857 | /* When linking with V1.2 and V1.3 objects together the output is V1.2. | |
6858 | and perf ext1 and DIV are mergerd to perf ext1. */ | |
6859 | if (in_version == E_NDS32_ELF_VER_1_2 || out_version == E_NDS32_ELF_VER_1_2) | |
6860 | { | |
6861 | elf_elfheader (obfd)->e_flags = | |
6862 | (in_flags & (~(E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6863 | | (out_flags & (~(E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6864 | | (((in_flags & (E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6865 | ? E_NDS32_HAS_EXT_INST : 0) | |
6866 | | (((out_flags & (E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6867 | ? E_NDS32_HAS_EXT_INST : 0) | |
6868 | | (in_16regs & out_16regs) | (in_no_mac & out_no_mac) | |
6869 | | ((in_version > out_version) ? out_version : in_version); | |
6870 | } | |
6871 | else | |
6872 | { | |
6873 | if (in_version != out_version) | |
6874 | _bfd_error_handler | |
6875 | /* xgettext:c-format */ | |
6876 | (_("%pB: warning: incompatible elf-versions %s and %s"), | |
6877 | ibfd, nds32_elfver_strtab[out_version], | |
6878 | nds32_elfver_strtab[in_version]); | |
35c08157 | 6879 | |
fbaf61ad NC |
6880 | elf_elfheader (obfd)->e_flags = in_flags | out_flags |
6881 | | (in_16regs & out_16regs) | (in_no_mac & out_no_mac) | |
6882 | | (in_fpu_config > out_fpu_config ? in_fpu_config : out_fpu_config) | |
6883 | | (in_version > out_version ? out_version : in_version); | |
6884 | } | |
35c08157 KLC |
6885 | } |
6886 | ||
0a1b45a2 | 6887 | return true; |
35c08157 KLC |
6888 | } |
6889 | ||
6890 | /* Display the flags field. */ | |
6891 | ||
0a1b45a2 | 6892 | static bool |
35c08157 KLC |
6893 | nds32_elf_print_private_bfd_data (bfd *abfd, void *ptr) |
6894 | { | |
6895 | FILE *file = (FILE *) ptr; | |
6896 | ||
6897 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
6898 | ||
6899 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
6900 | ||
6901 | fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags); | |
6902 | ||
6903 | switch (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH) | |
6904 | { | |
6905 | default: | |
6906 | case E_N1_ARCH: | |
6907 | fprintf (file, _(": n1 instructions")); | |
6908 | break; | |
6909 | case E_N1H_ARCH: | |
6910 | fprintf (file, _(": n1h instructions")); | |
6911 | break; | |
6912 | } | |
6913 | ||
6914 | fputc ('\n', file); | |
6915 | ||
0a1b45a2 | 6916 | return true; |
35c08157 KLC |
6917 | } |
6918 | ||
6919 | static unsigned int | |
6920 | nds32_elf_action_discarded (asection *sec) | |
6921 | { | |
6922 | ||
3f3328b8 | 6923 | if (startswith (sec->name, ".gcc_except_table")) |
35c08157 KLC |
6924 | return 0; |
6925 | ||
6926 | return _bfd_elf_default_action_discarded (sec); | |
6927 | } | |
6928 | ||
6929 | static asection * | |
6930 | nds32_elf_gc_mark_hook (asection *sec, struct bfd_link_info *info, | |
6931 | Elf_Internal_Rela *rel, struct elf_link_hash_entry *h, | |
6932 | Elf_Internal_Sym *sym) | |
6933 | { | |
6934 | if (h != NULL) | |
6935 | switch (ELF32_R_TYPE (rel->r_info)) | |
6936 | { | |
6937 | case R_NDS32_GNU_VTINHERIT: | |
6938 | case R_NDS32_GNU_VTENTRY: | |
6939 | case R_NDS32_RELA_GNU_VTINHERIT: | |
6940 | case R_NDS32_RELA_GNU_VTENTRY: | |
6941 | return NULL; | |
6942 | } | |
6943 | ||
6944 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
6945 | } | |
6946 | ||
fbaf61ad NC |
6947 | static enum elf_nds32_tls_type |
6948 | get_tls_type (enum elf_nds32_reloc_type r_type, | |
6949 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
6950 | { | |
6951 | enum elf_nds32_tls_type tls_type; | |
6952 | ||
6953 | switch (r_type) | |
6954 | { | |
6955 | case R_NDS32_TLS_LE_HI20: | |
6956 | case R_NDS32_TLS_LE_LO12: | |
6957 | tls_type = GOT_TLS_LE; | |
6958 | break; | |
6959 | case R_NDS32_TLS_IE_HI20: | |
6960 | case R_NDS32_TLS_IE_LO12S2: | |
6961 | case R_NDS32_TLS_IE_LO12: | |
6962 | tls_type = GOT_TLS_IE; | |
6963 | break; | |
6964 | case R_NDS32_TLS_IEGP_HI20: | |
6965 | case R_NDS32_TLS_IEGP_LO12: | |
6966 | case R_NDS32_TLS_IEGP_LO12S2: | |
6967 | tls_type = GOT_TLS_IEGP; | |
6968 | break; | |
6969 | case R_NDS32_TLS_DESC_HI20: | |
6970 | case R_NDS32_TLS_DESC_LO12: | |
6971 | case R_NDS32_TLS_DESC_ADD: | |
6972 | case R_NDS32_TLS_DESC_FUNC: | |
6973 | case R_NDS32_TLS_DESC_CALL: | |
6974 | tls_type = GOT_TLS_DESC; | |
6975 | break; | |
6976 | default: | |
6977 | tls_type = GOT_NORMAL; | |
6978 | break; | |
6979 | } | |
6980 | ||
6981 | return tls_type; | |
6982 | } | |
6983 | ||
6984 | /* Ensure that we have allocated bookkeeping structures for ABFD's local | |
6985 | symbols. */ | |
6986 | ||
0a1b45a2 | 6987 | static bool |
fbaf61ad NC |
6988 | elf32_nds32_allocate_local_sym_info (bfd *abfd) |
6989 | { | |
6990 | if (elf_local_got_refcounts (abfd) == NULL) | |
6991 | { | |
6992 | bfd_size_type num_syms; | |
6993 | bfd_size_type size; | |
6994 | char *data; | |
6995 | ||
6996 | num_syms = elf_tdata (abfd)->symtab_hdr.sh_info; | |
6997 | /* This space is for got_refcounts, got_tls_type, tlsdesc_gotent, and | |
6998 | gp_offset. The details can refer to struct elf_nds32_obj_tdata. */ | |
6999 | size = num_syms * (sizeof (bfd_signed_vma) + sizeof (char) | |
7000 | + sizeof (bfd_vma) + sizeof (int) | |
0a1b45a2 | 7001 | + sizeof (bool) + sizeof (bfd_vma)); |
fbaf61ad NC |
7002 | data = bfd_zalloc (abfd, size); |
7003 | if (data == NULL) | |
0a1b45a2 | 7004 | return false; |
fbaf61ad NC |
7005 | |
7006 | elf_local_got_refcounts (abfd) = (bfd_signed_vma *) data; | |
7007 | data += num_syms * sizeof (bfd_signed_vma); | |
7008 | ||
7009 | elf32_nds32_local_got_tls_type (abfd) = (char *) data; | |
7010 | data += num_syms * sizeof (char); | |
7011 | ||
7012 | elf32_nds32_local_tlsdesc_gotent (abfd) = (bfd_vma *) data; | |
7013 | data += num_syms * sizeof (bfd_vma); | |
7014 | ||
7015 | elf32_nds32_local_gp_offset (abfd) = (int *) data; | |
7016 | data += num_syms * sizeof (int); | |
7017 | } | |
7018 | ||
0a1b45a2 | 7019 | return true; |
fbaf61ad NC |
7020 | } |
7021 | ||
35c08157 KLC |
7022 | /* Look through the relocs for a section during the first phase. |
7023 | Since we don't do .gots or .plts, we just need to consider the | |
7024 | virtual table relocs for gc. */ | |
7025 | ||
0a1b45a2 | 7026 | static bool |
35c08157 KLC |
7027 | nds32_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
7028 | asection *sec, const Elf_Internal_Rela *relocs) | |
7029 | { | |
7030 | Elf_Internal_Shdr *symtab_hdr; | |
9bc8e54b | 7031 | struct elf_link_hash_entry **sym_hashes; |
35c08157 KLC |
7032 | const Elf_Internal_Rela *rel; |
7033 | const Elf_Internal_Rela *rel_end; | |
fbaf61ad | 7034 | struct elf_link_hash_table *ehtab; |
35c08157 KLC |
7035 | struct elf_nds32_link_hash_table *htab; |
7036 | bfd *dynobj; | |
7037 | asection *sreloc = NULL; | |
7038 | ||
fbaf61ad | 7039 | /* No need for relocation if relocatable already. */ |
0e1862bb | 7040 | if (bfd_link_relocatable (info)) |
fbaf61ad NC |
7041 | { |
7042 | elf32_nds32_check_relax_group (abfd, sec); | |
0a1b45a2 | 7043 | return true; |
fbaf61ad | 7044 | } |
35c08157 KLC |
7045 | |
7046 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
7047 | sym_hashes = elf_sym_hashes (abfd); | |
35c08157 | 7048 | |
fbaf61ad | 7049 | ehtab = elf_hash_table (info); |
35c08157 KLC |
7050 | htab = nds32_elf_hash_table (info); |
7051 | dynobj = htab->root.dynobj; | |
7052 | ||
7053 | rel_end = relocs + sec->reloc_count; | |
7054 | for (rel = relocs; rel < rel_end; rel++) | |
7055 | { | |
7056 | enum elf_nds32_reloc_type r_type; | |
7057 | struct elf_link_hash_entry *h; | |
7058 | unsigned long r_symndx; | |
fbaf61ad | 7059 | enum elf_nds32_tls_type tls_type, old_tls_type; |
35c08157 KLC |
7060 | |
7061 | r_symndx = ELF32_R_SYM (rel->r_info); | |
7062 | r_type = ELF32_R_TYPE (rel->r_info); | |
7063 | if (r_symndx < symtab_hdr->sh_info) | |
7064 | h = NULL; | |
7065 | else | |
7066 | { | |
7067 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
7068 | while (h->root.type == bfd_link_hash_indirect | |
7069 | || h->root.type == bfd_link_hash_warning) | |
7070 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7071 | } | |
7072 | ||
fbaf61ad NC |
7073 | /* Create .got section if necessary. |
7074 | Some relocs require a global offset table. We create | |
7075 | got section here, since these relocation need a got section | |
7076 | and if it is not created yet. */ | |
7077 | if (ehtab->sgot == NULL) | |
35c08157 KLC |
7078 | { |
7079 | switch (r_type) | |
7080 | { | |
7081 | case R_NDS32_GOT_HI20: | |
7082 | case R_NDS32_GOT_LO12: | |
7083 | case R_NDS32_GOT_LO15: | |
7084 | case R_NDS32_GOT_LO19: | |
7085 | case R_NDS32_GOT17S2_RELA: | |
7086 | case R_NDS32_GOT15S2_RELA: | |
7087 | case R_NDS32_GOTOFF: | |
7088 | case R_NDS32_GOTOFF_HI20: | |
7089 | case R_NDS32_GOTOFF_LO12: | |
7090 | case R_NDS32_GOTOFF_LO15: | |
7091 | case R_NDS32_GOTOFF_LO19: | |
7092 | case R_NDS32_GOTPC20: | |
7093 | case R_NDS32_GOTPC_HI20: | |
7094 | case R_NDS32_GOTPC_LO12: | |
7095 | case R_NDS32_GOT20: | |
1c8f6a4d | 7096 | case R_NDS32_TLS_IE_HI20: |
fbaf61ad | 7097 | case R_NDS32_TLS_IE_LO12: |
1c8f6a4d | 7098 | case R_NDS32_TLS_IE_LO12S2: |
fbaf61ad NC |
7099 | case R_NDS32_TLS_IEGP_HI20: |
7100 | case R_NDS32_TLS_IEGP_LO12: | |
7101 | case R_NDS32_TLS_IEGP_LO12S2: | |
7102 | case R_NDS32_TLS_DESC_HI20: | |
7103 | case R_NDS32_TLS_DESC_LO12: | |
35c08157 KLC |
7104 | if (dynobj == NULL) |
7105 | htab->root.dynobj = dynobj = abfd; | |
fbaf61ad | 7106 | if (!create_got_section (dynobj, info)) |
0a1b45a2 | 7107 | return false; |
35c08157 KLC |
7108 | break; |
7109 | ||
7110 | default: | |
7111 | break; | |
7112 | } | |
7113 | } | |
7114 | ||
fbaf61ad | 7115 | /* Check relocation type. */ |
35c08157 KLC |
7116 | switch ((int) r_type) |
7117 | { | |
7118 | case R_NDS32_GOT_HI20: | |
7119 | case R_NDS32_GOT_LO12: | |
7120 | case R_NDS32_GOT_LO15: | |
7121 | case R_NDS32_GOT_LO19: | |
7122 | case R_NDS32_GOT20: | |
fbaf61ad NC |
7123 | case R_NDS32_TLS_LE_HI20: |
7124 | case R_NDS32_TLS_LE_LO12: | |
1c8f6a4d | 7125 | case R_NDS32_TLS_IE_HI20: |
fbaf61ad | 7126 | case R_NDS32_TLS_IE_LO12: |
1c8f6a4d | 7127 | case R_NDS32_TLS_IE_LO12S2: |
fbaf61ad NC |
7128 | case R_NDS32_TLS_IEGP_HI20: |
7129 | case R_NDS32_TLS_IEGP_LO12: | |
7130 | case R_NDS32_TLS_IEGP_LO12S2: | |
7131 | case R_NDS32_TLS_DESC_HI20: | |
7132 | case R_NDS32_TLS_DESC_LO12: | |
7133 | tls_type = get_tls_type (r_type, h); | |
7134 | if (h) | |
1c8f6a4d | 7135 | { |
fbaf61ad NC |
7136 | if (tls_type != GOT_TLS_LE) |
7137 | h->got.refcount += 1; | |
1c8f6a4d | 7138 | old_tls_type = elf32_nds32_hash_entry (h)->tls_type; |
1c8f6a4d | 7139 | } |
35c08157 KLC |
7140 | else |
7141 | { | |
fbaf61ad NC |
7142 | /* This is a global offset table entry for a local symbol. */ |
7143 | if (!elf32_nds32_allocate_local_sym_info (abfd)) | |
0a1b45a2 | 7144 | return false; |
35c08157 | 7145 | |
fbaf61ad NC |
7146 | BFD_ASSERT (r_symndx < symtab_hdr->sh_info); |
7147 | if (tls_type != GOT_TLS_LE) | |
7148 | elf_local_got_refcounts (abfd)[r_symndx] += 1; | |
1c8f6a4d | 7149 | old_tls_type = elf32_nds32_local_got_tls_type (abfd)[r_symndx]; |
35c08157 | 7150 | } |
35c08157 | 7151 | |
fbaf61ad | 7152 | /* We would already have issued an error message if there |
1c8f6a4d KLC |
7153 | is a TLS/non-TLS mismatch, based on the symbol |
7154 | type. So just combine any TLS types needed. */ | |
7155 | if (old_tls_type != GOT_UNKNOWN && old_tls_type != GOT_NORMAL | |
7156 | && tls_type != GOT_NORMAL) | |
7157 | tls_type |= old_tls_type; | |
7158 | ||
fbaf61ad NC |
7159 | /* DESC to IE/IEGP if link to executable. */ |
7160 | if ((tls_type & (GOT_TLS_DESC | GOT_TLS_IEGP)) | |
7161 | && (bfd_link_executable (info))) | |
7162 | tls_type |= (bfd_link_pie (info) ? GOT_TLS_IEGP : GOT_TLS_IE); | |
7163 | ||
1c8f6a4d KLC |
7164 | if (old_tls_type != tls_type) |
7165 | { | |
7166 | if (h != NULL) | |
7167 | elf32_nds32_hash_entry (h)->tls_type = tls_type; | |
7168 | else | |
7169 | elf32_nds32_local_got_tls_type (abfd)[r_symndx] = tls_type; | |
7170 | } | |
7171 | break; | |
7172 | case R_NDS32_9_PLTREL: | |
35c08157 KLC |
7173 | case R_NDS32_25_PLTREL: |
7174 | case R_NDS32_PLTREL_HI20: | |
7175 | case R_NDS32_PLTREL_LO12: | |
7176 | case R_NDS32_PLT_GOTREL_HI20: | |
7177 | case R_NDS32_PLT_GOTREL_LO12: | |
7178 | case R_NDS32_PLT_GOTREL_LO15: | |
7179 | case R_NDS32_PLT_GOTREL_LO19: | |
7180 | case R_NDS32_PLT_GOTREL_LO20: | |
7181 | ||
7182 | /* This symbol requires a procedure linkage table entry. We | |
7183 | actually build the entry in adjust_dynamic_symbol, | |
7184 | because this might be a case of linking PIC code without | |
7185 | linking in any dynamic objects, in which case we don't | |
7186 | need to generate a procedure linkage table after all. */ | |
7187 | ||
7188 | /* If this is a local symbol, we resolve it directly without | |
7189 | creating a procedure linkage table entry. */ | |
7190 | if (h == NULL) | |
7191 | continue; | |
7192 | ||
fbaf61ad NC |
7193 | if (h->forced_local |
7194 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 KLC |
7195 | break; |
7196 | ||
1c8f6a4d | 7197 | elf32_nds32_hash_entry (h)->tls_type = GOT_NORMAL; |
35c08157 KLC |
7198 | h->needs_plt = 1; |
7199 | h->plt.refcount += 1; | |
7200 | break; | |
7201 | ||
7202 | case R_NDS32_16_RELA: | |
7203 | case R_NDS32_20_RELA: | |
7204 | case R_NDS32_5_RELA: | |
7205 | case R_NDS32_32_RELA: | |
7206 | case R_NDS32_HI20_RELA: | |
7207 | case R_NDS32_LO12S3_RELA: | |
7208 | case R_NDS32_LO12S2_RELA: | |
7209 | case R_NDS32_LO12S2_DP_RELA: | |
7210 | case R_NDS32_LO12S2_SP_RELA: | |
7211 | case R_NDS32_LO12S1_RELA: | |
7212 | case R_NDS32_LO12S0_RELA: | |
7213 | case R_NDS32_LO12S0_ORI_RELA: | |
7214 | case R_NDS32_SDA16S3_RELA: | |
7215 | case R_NDS32_SDA17S2_RELA: | |
7216 | case R_NDS32_SDA18S1_RELA: | |
7217 | case R_NDS32_SDA19S0_RELA: | |
7218 | case R_NDS32_SDA15S3_RELA: | |
7219 | case R_NDS32_SDA15S2_RELA: | |
7220 | case R_NDS32_SDA12S2_DP_RELA: | |
7221 | case R_NDS32_SDA12S2_SP_RELA: | |
7222 | case R_NDS32_SDA15S1_RELA: | |
7223 | case R_NDS32_SDA15S0_RELA: | |
7224 | case R_NDS32_SDA_FP7U2_RELA: | |
7225 | case R_NDS32_15_PCREL_RELA: | |
7226 | case R_NDS32_17_PCREL_RELA: | |
7227 | case R_NDS32_25_PCREL_RELA: | |
7228 | ||
0e1862bb | 7229 | if (h != NULL && !bfd_link_pic (info)) |
35c08157 KLC |
7230 | { |
7231 | h->non_got_ref = 1; | |
7232 | h->plt.refcount += 1; | |
7233 | } | |
7234 | ||
7235 | /* If we are creating a shared library, and this is a reloc against | |
7236 | a global symbol, or a non PC relative reloc against a local | |
7237 | symbol, then we need to copy the reloc into the shared library. | |
7238 | However, if we are linking with -Bsymbolic, we do not need to | |
7239 | copy a reloc against a global symbol which is defined in an | |
7240 | object we are including in the link (i.e., DEF_REGULAR is set). | |
7241 | At this point we have not seen all the input files, so it is | |
7242 | possible that DEF_REGULAR is not set now but will be set later | |
7243 | (it is never cleared). We account for that possibility below by | |
7244 | storing information in the dyn_relocs field of the hash table | |
7245 | entry. A similar situation occurs when creating shared libraries | |
7246 | and symbol visibility changes render the symbol local. | |
7247 | ||
7248 | If on the other hand, we are creating an executable, we may need | |
7249 | to keep relocations for symbols satisfied by a dynamic library | |
7250 | if we manage to avoid copy relocs for the symbol. */ | |
0e1862bb | 7251 | if ((bfd_link_pic (info) |
35c08157 KLC |
7252 | && (sec->flags & SEC_ALLOC) != 0 |
7253 | && ((r_type != R_NDS32_25_PCREL_RELA | |
7254 | && r_type != R_NDS32_15_PCREL_RELA | |
7255 | && r_type != R_NDS32_17_PCREL_RELA | |
7256 | && !(r_type == R_NDS32_32_RELA | |
7257 | && strcmp (sec->name, ".eh_frame") == 0)) | |
7258 | || (h != NULL | |
7259 | && (!info->symbolic | |
7260 | || h->root.type == bfd_link_hash_defweak | |
7261 | || !h->def_regular)))) | |
0e1862bb | 7262 | || (!bfd_link_pic (info) |
35c08157 KLC |
7263 | && (sec->flags & SEC_ALLOC) != 0 |
7264 | && h != NULL | |
7265 | && (h->root.type == bfd_link_hash_defweak | |
7266 | || !h->def_regular))) | |
7267 | { | |
3bf083ed AM |
7268 | struct elf_dyn_relocs *p; |
7269 | struct elf_dyn_relocs **head; | |
35c08157 KLC |
7270 | |
7271 | if (dynobj == NULL) | |
7272 | htab->root.dynobj = dynobj = abfd; | |
7273 | ||
7274 | /* When creating a shared object, we must copy these | |
7275 | relocs into the output file. We create a reloc | |
7276 | section in dynobj and make room for the reloc. */ | |
7277 | if (sreloc == NULL) | |
7278 | { | |
7279 | const char *name; | |
7280 | ||
7281 | name = bfd_elf_string_from_elf_section | |
7282 | (abfd, elf_elfheader (abfd)->e_shstrndx, | |
7283 | elf_section_data (sec)->rela.hdr->sh_name); | |
7284 | if (name == NULL) | |
0a1b45a2 | 7285 | return false; |
35c08157 | 7286 | |
3f3328b8 | 7287 | BFD_ASSERT (startswith (name, ".rela") |
fd361982 | 7288 | && strcmp (bfd_section_name (sec), |
35c08157 KLC |
7289 | name + 5) == 0); |
7290 | ||
7291 | sreloc = bfd_get_section_by_name (dynobj, name); | |
7292 | if (sreloc == NULL) | |
7293 | { | |
7294 | flagword flags; | |
7295 | ||
7296 | sreloc = bfd_make_section (dynobj, name); | |
7297 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
7298 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
7299 | if ((sec->flags & SEC_ALLOC) != 0) | |
7300 | flags |= SEC_ALLOC | SEC_LOAD; | |
7301 | if (sreloc == NULL | |
fd361982 AM |
7302 | || !bfd_set_section_flags (sreloc, flags) |
7303 | || !bfd_set_section_alignment (sreloc, 2)) | |
0a1b45a2 | 7304 | return false; |
35c08157 KLC |
7305 | |
7306 | elf_section_type (sreloc) = SHT_RELA; | |
7307 | } | |
7308 | elf_section_data (sec)->sreloc = sreloc; | |
7309 | } | |
7310 | ||
7311 | /* If this is a global symbol, we count the number of | |
7312 | relocations we need for this symbol. */ | |
7313 | if (h != NULL) | |
190eb1dd | 7314 | head = &h->dyn_relocs; |
35c08157 KLC |
7315 | else |
7316 | { | |
7317 | asection *s; | |
61034b0b | 7318 | void *vpp; |
35c08157 KLC |
7319 | |
7320 | Elf_Internal_Sym *isym; | |
f1dfbfdb L |
7321 | isym = bfd_sym_from_r_symndx (&htab->root.sym_cache, |
7322 | abfd, r_symndx); | |
35c08157 | 7323 | if (isym == NULL) |
0a1b45a2 | 7324 | return false; |
35c08157 KLC |
7325 | |
7326 | /* Track dynamic relocs needed for local syms too. */ | |
7327 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
7328 | if (s == NULL) | |
0a1b45a2 | 7329 | return false; |
35c08157 | 7330 | |
61034b0b | 7331 | vpp = &elf_section_data (s)->local_dynrel; |
3bf083ed | 7332 | head = (struct elf_dyn_relocs **) vpp; |
35c08157 KLC |
7333 | } |
7334 | ||
7335 | p = *head; | |
7336 | if (p == NULL || p->sec != sec) | |
7337 | { | |
986f0783 | 7338 | size_t amt = sizeof (*p); |
3bf083ed | 7339 | p = (struct elf_dyn_relocs *) bfd_alloc (dynobj, amt); |
35c08157 | 7340 | if (p == NULL) |
0a1b45a2 | 7341 | return false; |
35c08157 KLC |
7342 | p->next = *head; |
7343 | *head = p; | |
7344 | p->sec = sec; | |
7345 | p->count = 0; | |
7346 | p->pc_count = 0; | |
7347 | } | |
7348 | ||
7349 | p->count += 1; | |
fbaf61ad NC |
7350 | |
7351 | /* Since eh_frame is readonly, R_NDS32_32_RELA | |
7352 | reloc for eh_frame will cause shared library has | |
7353 | TEXTREL entry in the dynamic section. This lead glibc | |
7354 | testsuites to failure (bug-13092) and cause kernel fail | |
7355 | (bug-11819). I think the best solution is to replace | |
7356 | absolute reloc with pc relative reloc in the eh_frame. | |
7357 | To do that, we need to support the following issues: | |
7358 | ||
7359 | === For GCC === | |
7360 | * gcc/config/nds32/nds32.h: Define | |
7361 | ASM_PREFERRED_EH_DATA_FORMAT to encode DW_EH_PE_pcrel | |
7362 | and DW_EH_PE_sdata4 into DWARF exception header when | |
7363 | option have '-fpic'. | |
7364 | ||
7365 | === For binutils === | |
7366 | * bfd/: Define new reloc R_NDS32_32_PCREL_RELA. | |
7367 | * gas/config/tc-nds32.h: Define DIFF_EXPR_OK. This | |
7368 | may break our nds DIFF mechanism, therefore, we | |
7369 | must disable all linker relaxations to ensure | |
7370 | correctness. | |
7371 | * gas/config/tc-nds32.c (nds32_apply_fix): Replace | |
7372 | R_NDS32_32_RELA with R_NDS32_32_PCREL_RELA, and | |
7373 | do the necessary modification. | |
7374 | ||
7375 | Unfortunately, it still have some problems for nds32 | |
7376 | to support pc relative reloc in the eh_frame. So I use | |
7377 | another solution to fix this issue. | |
7378 | ||
7379 | However, I find that ld always emit TEXTREL marker for | |
7380 | R_NDS32_NONE relocs in rel.dyn. These none relocs are | |
7381 | correspond to R_NDS32_32_RELA for .eh_frame section. | |
7382 | It means that we always reserve redundant entries of rel.dyn | |
7383 | for these relocs which actually do nothing in dynamic linker. | |
7384 | ||
7385 | Therefore, we regard these relocs as pc relative relocs | |
7386 | here and increase the pc_count. */ | |
35c08157 KLC |
7387 | if (ELF32_R_TYPE (rel->r_info) == R_NDS32_25_PCREL_RELA |
7388 | || ELF32_R_TYPE (rel->r_info) == R_NDS32_15_PCREL_RELA | |
fbaf61ad NC |
7389 | || ELF32_R_TYPE (rel->r_info) == R_NDS32_17_PCREL_RELA |
7390 | || (r_type == R_NDS32_32_RELA | |
7391 | && strcmp (sec->name, ".eh_frame") == 0)) | |
35c08157 KLC |
7392 | p->pc_count += 1; |
7393 | } | |
7394 | break; | |
7395 | ||
7396 | /* This relocation describes the C++ object vtable hierarchy. | |
7397 | Reconstruct it for later use during GC. */ | |
7398 | case R_NDS32_RELA_GNU_VTINHERIT: | |
7399 | case R_NDS32_GNU_VTINHERIT: | |
7400 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
0a1b45a2 | 7401 | return false; |
35c08157 KLC |
7402 | break; |
7403 | ||
7404 | /* This relocation describes which C++ vtable entries are actually | |
7405 | used. Record for later use during GC. */ | |
7406 | case R_NDS32_GNU_VTENTRY: | |
7407 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) | |
0a1b45a2 | 7408 | return false; |
35c08157 KLC |
7409 | break; |
7410 | case R_NDS32_RELA_GNU_VTENTRY: | |
7411 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
0a1b45a2 | 7412 | return false; |
35c08157 KLC |
7413 | break; |
7414 | } | |
7415 | } | |
7416 | ||
0a1b45a2 | 7417 | return true; |
35c08157 KLC |
7418 | } |
7419 | ||
7420 | /* Write VAL in uleb128 format to P, returning a pointer to the | |
7421 | following byte. | |
7422 | This code is copied from elf-attr.c. */ | |
7423 | ||
7424 | static bfd_byte * | |
7425 | write_uleb128 (bfd_byte *p, unsigned int val) | |
7426 | { | |
7427 | bfd_byte c; | |
7428 | do | |
7429 | { | |
7430 | c = val & 0x7f; | |
7431 | val >>= 7; | |
7432 | if (val) | |
7433 | c |= 0x80; | |
7434 | *(p++) = c; | |
7435 | } | |
7436 | while (val); | |
7437 | return p; | |
7438 | } | |
7439 | ||
7440 | static bfd_signed_vma | |
7441 | calculate_offset (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
fbaf61ad | 7442 | Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr) |
35c08157 KLC |
7443 | { |
7444 | bfd_signed_vma foff; | |
7445 | bfd_vma symval, addend; | |
7446 | asection *sym_sec; | |
7447 | ||
7448 | /* Get the value of the symbol referred to by the reloc. */ | |
7449 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
7450 | { | |
7451 | Elf_Internal_Sym *isym; | |
7452 | ||
7453 | /* A local symbol. */ | |
7454 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
7455 | ||
7456 | if (isym->st_shndx == SHN_UNDEF) | |
7457 | sym_sec = bfd_und_section_ptr; | |
7458 | else if (isym->st_shndx == SHN_ABS) | |
7459 | sym_sec = bfd_abs_section_ptr; | |
7460 | else if (isym->st_shndx == SHN_COMMON) | |
7461 | sym_sec = bfd_com_section_ptr; | |
7462 | else | |
7463 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
7464 | symval = isym->st_value + sym_sec->output_section->vma | |
7465 | + sym_sec->output_offset; | |
7466 | } | |
7467 | else | |
7468 | { | |
7469 | unsigned long indx; | |
7470 | struct elf_link_hash_entry *h; | |
35c08157 KLC |
7471 | |
7472 | /* An external symbol. */ | |
7473 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
7474 | h = elf_sym_hashes (abfd)[indx]; | |
7475 | BFD_ASSERT (h != NULL); | |
7476 | ||
7477 | if (h->root.type != bfd_link_hash_defined | |
7478 | && h->root.type != bfd_link_hash_defweak) | |
7479 | /* This appears to be a reference to an undefined | |
7480 | symbol. Just ignore it--it will be caught by the | |
7481 | regular reloc processing. */ | |
7482 | return 0; | |
35c08157 KLC |
7483 | |
7484 | if (h->root.u.def.section->flags & SEC_MERGE) | |
7485 | { | |
7486 | sym_sec = h->root.u.def.section; | |
7487 | symval = _bfd_merged_section_offset (abfd, &sym_sec, | |
7488 | elf_section_data (sym_sec)->sec_info, | |
7489 | h->root.u.def.value); | |
7490 | symval = symval + sym_sec->output_section->vma | |
7491 | + sym_sec->output_offset; | |
7492 | } | |
7493 | else | |
7494 | symval = (h->root.u.def.value | |
7495 | + h->root.u.def.section->output_section->vma | |
7496 | + h->root.u.def.section->output_offset); | |
7497 | } | |
7498 | ||
7499 | addend = irel->r_addend; | |
7500 | ||
7501 | foff = (symval + addend | |
7502 | - (irel->r_offset + sec->output_section->vma + sec->output_offset)); | |
7503 | return foff; | |
7504 | } | |
35c08157 | 7505 | \f |
fbaf61ad | 7506 | |
35c08157 KLC |
7507 | /* Convert a 32-bit instruction to 16-bit one. |
7508 | INSN is the input 32-bit instruction, INSN16 is the output 16-bit | |
7509 | instruction. If INSN_TYPE is not NULL, it the CGEN instruction | |
7510 | type of INSN16. Return 1 if successful. */ | |
7511 | ||
7512 | static int | |
7513 | nds32_convert_32_to_16_alu1 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
7514 | int *pinsn_type) | |
7515 | { | |
7516 | uint16_t insn16 = 0; | |
6cae483a | 7517 | int insn_type = 0; |
35c08157 KLC |
7518 | unsigned long mach = bfd_get_mach (abfd); |
7519 | ||
7520 | if (N32_SH5 (insn) != 0) | |
7521 | return 0; | |
7522 | ||
7523 | switch (N32_SUB5 (insn)) | |
7524 | { | |
7525 | case N32_ALU1_ADD_SLLI: | |
7526 | case N32_ALU1_ADD_SRLI: | |
7527 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IS_RB3 (insn)) | |
7528 | { | |
7529 | insn16 = N16_TYPE333 (ADD333, N32_RT5 (insn), N32_RA5 (insn), | |
7530 | N32_RB5 (insn)); | |
7531 | insn_type = NDS32_INSN_ADD333; | |
7532 | } | |
7533 | else if (N32_IS_RT4 (insn)) | |
7534 | { | |
7535 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7536 | insn16 = N16_TYPE45 (ADD45, N32_RT54 (insn), N32_RB5 (insn)); | |
7537 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7538 | insn16 = N16_TYPE45 (ADD45, N32_RT54 (insn), N32_RA5 (insn)); | |
7539 | insn_type = NDS32_INSN_ADD45; | |
7540 | } | |
7541 | break; | |
7542 | ||
7543 | case N32_ALU1_SUB_SLLI: | |
7544 | case N32_ALU1_SUB_SRLI: | |
7545 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IS_RB3 (insn)) | |
7546 | { | |
7547 | insn16 = N16_TYPE333 (SUB333, N32_RT5 (insn), N32_RA5 (insn), | |
7548 | N32_RB5 (insn)); | |
7549 | insn_type = NDS32_INSN_SUB333; | |
7550 | } | |
7551 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
7552 | { | |
7553 | insn16 = N16_TYPE45 (SUB45, N32_RT54 (insn), N32_RB5 (insn)); | |
7554 | insn_type = NDS32_INSN_SUB45; | |
7555 | } | |
7556 | break; | |
7557 | ||
7558 | case N32_ALU1_AND_SLLI: | |
7559 | case N32_ALU1_AND_SRLI: | |
7560 | /* and $rt, $rt, $rb -> and33 for v3, v3m. */ | |
7561 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7562 | && N32_IS_RB3 (insn)) | |
7563 | { | |
7564 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7565 | insn16 = N16_MISC33 (AND33, N32_RT5 (insn), N32_RB5 (insn)); | |
7566 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7567 | insn16 = N16_MISC33 (AND33, N32_RT5 (insn), N32_RA5 (insn)); | |
7568 | if (insn16) | |
7569 | insn_type = NDS32_INSN_AND33; | |
7570 | } | |
7571 | break; | |
7572 | ||
7573 | case N32_ALU1_XOR_SLLI: | |
7574 | case N32_ALU1_XOR_SRLI: | |
7575 | /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */ | |
7576 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7577 | && N32_IS_RB3 (insn)) | |
7578 | { | |
7579 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7580 | insn16 = N16_MISC33 (XOR33, N32_RT5 (insn), N32_RB5 (insn)); | |
7581 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7582 | insn16 = N16_MISC33 (XOR33, N32_RT5 (insn), N32_RA5 (insn)); | |
7583 | if (insn16) | |
7584 | insn_type = NDS32_INSN_XOR33; | |
7585 | } | |
7586 | break; | |
7587 | ||
7588 | case N32_ALU1_OR_SLLI: | |
7589 | case N32_ALU1_OR_SRLI: | |
7590 | /* or $rt, $rt, $rb -> or33 for v3, v3m. */ | |
7591 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7592 | && N32_IS_RB3 (insn)) | |
7593 | { | |
7594 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7595 | insn16 = N16_MISC33 (OR33, N32_RT5 (insn), N32_RB5 (insn)); | |
7596 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7597 | insn16 = N16_MISC33 (OR33, N32_RT5 (insn), N32_RA5 (insn)); | |
7598 | if (insn16) | |
7599 | insn_type = NDS32_INSN_OR33; | |
7600 | } | |
7601 | break; | |
7602 | case N32_ALU1_NOR: | |
7603 | /* nor $rt, $ra, $ra -> not33 for v3, v3m. */ | |
7604 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RB3 (insn) | |
7605 | && N32_RA5 (insn) == N32_RB5 (insn)) | |
7606 | { | |
7607 | insn16 = N16_MISC33 (NOT33, N32_RT5 (insn), N32_RA5 (insn)); | |
7608 | insn_type = NDS32_INSN_NOT33; | |
7609 | } | |
7610 | break; | |
7611 | case N32_ALU1_SRAI: | |
7612 | if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
7613 | { | |
7614 | insn16 = N16_TYPE45 (SRAI45, N32_RT54 (insn), N32_UB5 (insn)); | |
7615 | insn_type = NDS32_INSN_SRAI45; | |
7616 | } | |
7617 | break; | |
7618 | ||
7619 | case N32_ALU1_SRLI: | |
7620 | if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
7621 | { | |
7622 | insn16 = N16_TYPE45 (SRLI45, N32_RT54 (insn), N32_UB5 (insn)); | |
7623 | insn_type = NDS32_INSN_SRLI45; | |
7624 | } | |
7625 | break; | |
7626 | ||
7627 | case N32_ALU1_SLLI: | |
7628 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_UB5 (insn) < 8) | |
7629 | { | |
7630 | insn16 = N16_TYPE333 (SLLI333, N32_RT5 (insn), N32_RA5 (insn), | |
7631 | N32_UB5 (insn)); | |
7632 | insn_type = NDS32_INSN_SLLI333; | |
7633 | } | |
7634 | break; | |
7635 | ||
7636 | case N32_ALU1_ZEH: | |
7637 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7638 | { | |
7639 | insn16 = N16_BFMI333 (ZEH33, N32_RT5 (insn), N32_RA5 (insn)); | |
7640 | insn_type = NDS32_INSN_ZEH33; | |
7641 | } | |
7642 | break; | |
7643 | ||
7644 | case N32_ALU1_SEB: | |
7645 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7646 | { | |
7647 | insn16 = N16_BFMI333 (SEB33, N32_RT5 (insn), N32_RA5 (insn)); | |
7648 | insn_type = NDS32_INSN_SEB33; | |
7649 | } | |
7650 | break; | |
7651 | ||
7652 | case N32_ALU1_SEH: | |
7653 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7654 | { | |
7655 | insn16 = N16_BFMI333 (SEH33, N32_RT5 (insn), N32_RA5 (insn)); | |
7656 | insn_type = NDS32_INSN_SEH33; | |
7657 | } | |
7658 | break; | |
7659 | ||
7660 | case N32_ALU1_SLT: | |
7661 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn)) | |
7662 | { | |
7663 | /* Implicit r15. */ | |
7664 | insn16 = N16_TYPE45 (SLT45, N32_RA54 (insn), N32_RB5 (insn)); | |
7665 | insn_type = NDS32_INSN_SLT45; | |
7666 | } | |
7667 | break; | |
7668 | ||
7669 | case N32_ALU1_SLTS: | |
7670 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn)) | |
7671 | { | |
7672 | /* Implicit r15. */ | |
7673 | insn16 = N16_TYPE45 (SLTS45, N32_RA54 (insn), N32_RB5 (insn)); | |
7674 | insn_type = NDS32_INSN_SLTS45; | |
7675 | } | |
7676 | break; | |
7677 | } | |
7678 | ||
7679 | if ((insn16 & 0x8000) == 0) | |
7680 | return 0; | |
7681 | ||
7682 | if (pinsn16) | |
7683 | *pinsn16 = insn16; | |
7684 | if (pinsn_type) | |
7685 | *pinsn_type = insn_type; | |
7686 | return 1; | |
7687 | } | |
7688 | ||
7689 | static int | |
7690 | nds32_convert_32_to_16_alu2 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
7691 | int *pinsn_type) | |
7692 | { | |
7693 | uint16_t insn16 = 0; | |
7694 | int insn_type; | |
7695 | unsigned long mach = bfd_get_mach (abfd); | |
7696 | ||
7697 | /* TODO: bset, bclr, btgl, btst. */ | |
7698 | if (__GF (insn, 6, 4) != 0) | |
7699 | return 0; | |
7700 | ||
7701 | switch (N32_IMMU (insn, 6)) | |
7702 | { | |
7703 | case N32_ALU2_MUL: | |
7704 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7705 | && N32_IS_RB3 (insn)) | |
7706 | { | |
7707 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7708 | insn16 = N16_MISC33 (MUL33, N32_RT5 (insn), N32_RB5 (insn)); | |
7709 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7710 | insn16 = N16_MISC33 (MUL33, N32_RT5 (insn), N32_RA5 (insn)); | |
7711 | if (insn16) | |
7712 | insn_type = NDS32_INSN_MUL33; | |
7713 | } | |
7714 | } | |
7715 | ||
7716 | if ((insn16 & 0x8000) == 0) | |
7717 | return 0; | |
7718 | ||
7719 | if (pinsn16) | |
7720 | *pinsn16 = insn16; | |
7721 | if (pinsn_type) | |
7722 | *pinsn_type = insn_type; | |
7723 | return 1; | |
7724 | } | |
7725 | ||
7726 | int | |
7727 | nds32_convert_32_to_16 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
7728 | int *pinsn_type) | |
7729 | { | |
7730 | int op6; | |
7731 | uint16_t insn16 = 0; | |
1624c9ca | 7732 | int insn_type = 0; |
35c08157 KLC |
7733 | unsigned long mach = bfd_get_mach (abfd); |
7734 | ||
7735 | /* Decode 32-bit instruction. */ | |
7736 | if (insn & 0x80000000) | |
7737 | { | |
7738 | /* Not 32-bit insn. */ | |
7739 | return 0; | |
7740 | } | |
7741 | ||
7742 | op6 = N32_OP6 (insn); | |
7743 | ||
7744 | /* Convert it to 16-bit instruction. */ | |
7745 | switch (op6) | |
7746 | { | |
7747 | case N32_OP6_MOVI: | |
7748 | if (IS_WITHIN_S (N32_IMM20S (insn), 5)) | |
7749 | { | |
7750 | insn16 = N16_TYPE55 (MOVI55, N32_RT5 (insn), N32_IMM20S (insn)); | |
7751 | insn_type = NDS32_INSN_MOVI55; | |
7752 | } | |
7753 | else if (mach >= MACH_V3 && N32_IMM20S (insn) >= 16 | |
7754 | && N32_IMM20S (insn) < 48 && N32_IS_RT4 (insn)) | |
7755 | { | |
7756 | insn16 = N16_TYPE45 (MOVPI45, N32_RT54 (insn), | |
7757 | N32_IMM20S (insn) - 16); | |
7758 | insn_type = NDS32_INSN_MOVPI45; | |
7759 | } | |
7760 | break; | |
7761 | ||
7762 | case N32_OP6_ADDI: | |
7763 | if (N32_IMM15S (insn) == 0) | |
7764 | { | |
7765 | /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp', | |
7766 | because `mov55 $sp, $sp' is ifret16 in V3 ISA. */ | |
7767 | if (mach <= MACH_V2 | |
7768 | || N32_RT5 (insn) != REG_SP || N32_RA5 (insn) != REG_SP) | |
7769 | { | |
7770 | insn16 = N16_TYPE55 (MOV55, N32_RT5 (insn), N32_RA5 (insn)); | |
7771 | insn_type = NDS32_INSN_MOV55; | |
7772 | } | |
7773 | } | |
7774 | else if (N32_IMM15S (insn) > 0) | |
7775 | { | |
7776 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IMM15S (insn) < 8) | |
7777 | { | |
7778 | insn16 = N16_TYPE333 (ADDI333, N32_RT5 (insn), N32_RA5 (insn), | |
7779 | N32_IMM15S (insn)); | |
7780 | insn_type = NDS32_INSN_ADDI333; | |
7781 | } | |
7782 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn) | |
7783 | && N32_IMM15S (insn) < 32) | |
7784 | { | |
7785 | insn16 = N16_TYPE45 (ADDI45, N32_RT54 (insn), N32_IMM15S (insn)); | |
7786 | insn_type = NDS32_INSN_ADDI45; | |
7787 | } | |
7788 | else if (mach >= MACH_V2 && N32_RT5 (insn) == REG_SP | |
7789 | && N32_RT5 (insn) == N32_RA5 (insn) | |
7790 | && N32_IMM15S (insn) < 512) | |
7791 | { | |
7792 | insn16 = N16_TYPE10 (ADDI10S, N32_IMM15S (insn)); | |
7793 | insn_type = NDS32_INSN_ADDI10_SP; | |
7794 | } | |
7795 | else if (mach >= MACH_V3 && N32_IS_RT3 (insn) | |
7796 | && N32_RA5 (insn) == REG_SP && N32_IMM15S (insn) < 256 | |
7797 | && (N32_IMM15S (insn) % 4 == 0)) | |
7798 | { | |
7799 | insn16 = N16_TYPE36 (ADDRI36_SP, N32_RT5 (insn), | |
7800 | N32_IMM15S (insn) >> 2); | |
7801 | insn_type = NDS32_INSN_ADDRI36_SP; | |
7802 | } | |
7803 | } | |
7804 | else | |
7805 | { | |
7806 | /* Less than 0. */ | |
7807 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IMM15S (insn) > -8) | |
7808 | { | |
7809 | insn16 = N16_TYPE333 (SUBI333, N32_RT5 (insn), N32_RA5 (insn), | |
7810 | 0 - N32_IMM15S (insn)); | |
7811 | insn_type = NDS32_INSN_SUBI333; | |
7812 | } | |
7813 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn) | |
7814 | && N32_IMM15S (insn) > -32) | |
7815 | { | |
1c8f6a4d KLC |
7816 | insn16 = N16_TYPE45 (SUBI45, N32_RT54 (insn), |
7817 | 0 - N32_IMM15S (insn)); | |
35c08157 KLC |
7818 | insn_type = NDS32_INSN_SUBI45; |
7819 | } | |
7820 | else if (mach >= MACH_V2 && N32_RT5 (insn) == REG_SP | |
7821 | && N32_RT5 (insn) == N32_RA5 (insn) | |
7822 | && N32_IMM15S (insn) >= -512) | |
7823 | { | |
7824 | insn16 = N16_TYPE10 (ADDI10S, N32_IMM15S (insn)); | |
7825 | insn_type = NDS32_INSN_ADDI10_SP; | |
7826 | } | |
7827 | } | |
7828 | break; | |
7829 | ||
7830 | case N32_OP6_ORI: | |
7831 | if (N32_IMM15S (insn) == 0) | |
7832 | { | |
7833 | /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp', | |
7834 | because `mov55 $sp, $sp' is ifret16 in V3 ISA. */ | |
7835 | if (mach <= MACH_V2 | |
7836 | || N32_RT5 (insn) != REG_SP || N32_RA5 (insn) != REG_SP) | |
7837 | { | |
7838 | insn16 = N16_TYPE55 (MOV55, N32_RT5 (insn), N32_RA5 (insn)); | |
7839 | insn_type = NDS32_INSN_MOV55; | |
7840 | } | |
7841 | } | |
7842 | break; | |
7843 | ||
7844 | case N32_OP6_SUBRI: | |
7845 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) | |
7846 | && N32_IS_RA3 (insn) && N32_IMM15S (insn) == 0) | |
7847 | { | |
7848 | insn16 = N16_MISC33 (NEG33, N32_RT5 (insn), N32_RA5 (insn)); | |
7849 | insn_type = NDS32_INSN_NEG33; | |
7850 | } | |
7851 | break; | |
7852 | ||
7853 | case N32_OP6_ANDI: | |
7854 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7855 | { | |
7856 | if (N32_IMM15U (insn) == 1) | |
7857 | { | |
7858 | insn16 = N16_BFMI333 (XLSB33, N32_RT5 (insn), N32_RA5 (insn)); | |
7859 | insn_type = NDS32_INSN_XLSB33; | |
7860 | } | |
7861 | else if (N32_IMM15U (insn) == 0x7ff) | |
7862 | { | |
7863 | insn16 = N16_BFMI333 (X11B33, N32_RT5 (insn), N32_RA5 (insn)); | |
7864 | insn_type = NDS32_INSN_X11B33; | |
7865 | } | |
7866 | else if (N32_IMM15U (insn) == 0xff) | |
7867 | { | |
7868 | insn16 = N16_BFMI333 (ZEB33, N32_RT5 (insn), N32_RA5 (insn)); | |
7869 | insn_type = NDS32_INSN_ZEB33; | |
7870 | } | |
7871 | else if (mach >= MACH_V3 && N32_RT5 (insn) == N32_RA5 (insn) | |
7872 | && N32_IMM15U (insn) < 256) | |
7873 | { | |
7874 | int imm15u = N32_IMM15U (insn); | |
7875 | ||
7876 | if (__builtin_popcount (imm15u) == 1) | |
7877 | { | |
7878 | /* BMSKI33 */ | |
7879 | int imm3u = __builtin_ctz (imm15u); | |
7880 | ||
7881 | insn16 = N16_BFMI333 (BMSKI33, N32_RT5 (insn), imm3u); | |
7882 | insn_type = NDS32_INSN_BMSKI33; | |
7883 | } | |
7884 | else if (imm15u != 0 && __builtin_popcount (imm15u + 1) == 1) | |
7885 | { | |
7886 | /* FEXTI33 */ | |
7887 | int imm3u = __builtin_ctz (imm15u + 1) - 1; | |
7888 | ||
7889 | insn16 = N16_BFMI333 (FEXTI33, N32_RT5 (insn), imm3u); | |
7890 | insn_type = NDS32_INSN_FEXTI33; | |
7891 | } | |
7892 | } | |
7893 | } | |
7894 | break; | |
7895 | ||
7896 | case N32_OP6_SLTI: | |
7897 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn) | |
7898 | && IS_WITHIN_U (N32_IMM15S (insn), 5)) | |
7899 | { | |
7900 | insn16 = N16_TYPE45 (SLTI45, N32_RA54 (insn), N32_IMM15S (insn)); | |
7901 | insn_type = NDS32_INSN_SLTI45; | |
7902 | } | |
7903 | break; | |
7904 | ||
7905 | case N32_OP6_SLTSI: | |
7906 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn) | |
7907 | && IS_WITHIN_U (N32_IMM15S (insn), 5)) | |
7908 | { | |
7909 | insn16 = N16_TYPE45 (SLTSI45, N32_RA54 (insn), N32_IMM15S (insn)); | |
7910 | insn_type = NDS32_INSN_SLTSI45; | |
7911 | } | |
7912 | break; | |
7913 | ||
7914 | case N32_OP6_LWI: | |
7915 | if (N32_IS_RT4 (insn) && N32_IMM15S (insn) == 0) | |
7916 | { | |
7917 | insn16 = N16_TYPE45 (LWI450, N32_RT54 (insn), N32_RA5 (insn)); | |
7918 | insn_type = NDS32_INSN_LWI450; | |
7919 | } | |
7920 | else if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7921 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7922 | { | |
7923 | insn16 = N16_TYPE333 (LWI333, N32_RT5 (insn), N32_RA5 (insn), | |
7924 | N32_IMM15S (insn)); | |
7925 | insn_type = NDS32_INSN_LWI333; | |
7926 | } | |
7927 | else if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_FP | |
7928 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
7929 | { | |
7930 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
7931 | insn_type = NDS32_INSN_LWI37; | |
7932 | } | |
7933 | else if (mach >= MACH_V2 && N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_SP | |
7934 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
7935 | { | |
7936 | insn16 = N16_TYPE37 (XWI37SP, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
7937 | insn_type = NDS32_INSN_LWI37_SP; | |
7938 | } | |
7939 | else if (mach >= MACH_V2 && N32_IS_RT4 (insn) && N32_RA5 (insn) == REG_R8 | |
7940 | && -32 <= N32_IMM15S (insn) && N32_IMM15S (insn) < 0) | |
7941 | { | |
1c8f6a4d KLC |
7942 | insn16 = N16_TYPE45 (LWI45_FE, N32_RT54 (insn), |
7943 | N32_IMM15S (insn) + 32); | |
35c08157 KLC |
7944 | insn_type = NDS32_INSN_LWI45_FE; |
7945 | } | |
7946 | break; | |
7947 | ||
7948 | case N32_OP6_SWI: | |
7949 | if (N32_IS_RT4 (insn) && N32_IMM15S (insn) == 0) | |
7950 | { | |
7951 | insn16 = N16_TYPE45 (SWI450, N32_RT54 (insn), N32_RA5 (insn)); | |
7952 | insn_type = NDS32_INSN_SWI450; | |
7953 | } | |
7954 | else if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7955 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7956 | { | |
1c8f6a4d KLC |
7957 | insn16 = N16_TYPE333 (SWI333, N32_RT5 (insn), N32_RA5 (insn), |
7958 | N32_IMM15S (insn)); | |
35c08157 KLC |
7959 | insn_type = NDS32_INSN_SWI333; |
7960 | } | |
7961 | else if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_FP | |
7962 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
7963 | { | |
7964 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
7965 | insn_type = NDS32_INSN_SWI37; | |
7966 | } | |
7967 | else if (mach >= MACH_V2 && N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_SP | |
7968 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
7969 | { | |
7970 | insn16 = N16_TYPE37 (XWI37SP, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
7971 | insn_type = NDS32_INSN_SWI37_SP; | |
7972 | } | |
7973 | break; | |
7974 | ||
7975 | case N32_OP6_LWI_BI: | |
7976 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7977 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7978 | { | |
7979 | insn16 = N16_TYPE333 (LWI333_BI, N32_RT5 (insn), N32_RA5 (insn), | |
7980 | N32_IMM15S (insn)); | |
7981 | insn_type = NDS32_INSN_LWI333_BI; | |
7982 | } | |
7983 | break; | |
7984 | ||
7985 | case N32_OP6_SWI_BI: | |
7986 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7987 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7988 | { | |
7989 | insn16 = N16_TYPE333 (SWI333_BI, N32_RT5 (insn), N32_RA5 (insn), | |
7990 | N32_IMM15S (insn)); | |
7991 | insn_type = NDS32_INSN_SWI333_BI; | |
7992 | } | |
7993 | break; | |
7994 | ||
7995 | case N32_OP6_LHI: | |
7996 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7997 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7998 | { | |
7999 | insn16 = N16_TYPE333 (LHI333, N32_RT5 (insn), N32_RA5 (insn), | |
8000 | N32_IMM15S (insn)); | |
8001 | insn_type = NDS32_INSN_LHI333; | |
8002 | } | |
8003 | break; | |
8004 | ||
8005 | case N32_OP6_SHI: | |
8006 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
8007 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
8008 | { | |
8009 | insn16 = N16_TYPE333 (SHI333, N32_RT5 (insn), N32_RA5 (insn), | |
8010 | N32_IMM15S (insn)); | |
8011 | insn_type = NDS32_INSN_SHI333; | |
8012 | } | |
8013 | break; | |
8014 | ||
8015 | case N32_OP6_LBI: | |
8016 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
8017 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
8018 | { | |
8019 | insn16 = N16_TYPE333 (LBI333, N32_RT5 (insn), N32_RA5 (insn), | |
8020 | N32_IMM15S (insn)); | |
8021 | insn_type = NDS32_INSN_LBI333; | |
8022 | } | |
8023 | break; | |
8024 | ||
8025 | case N32_OP6_SBI: | |
8026 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
8027 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
8028 | { | |
8029 | insn16 = N16_TYPE333 (SBI333, N32_RT5 (insn), N32_RA5 (insn), | |
8030 | N32_IMM15S (insn)); | |
8031 | insn_type = NDS32_INSN_SBI333; | |
8032 | } | |
8033 | break; | |
8034 | ||
8035 | case N32_OP6_ALU1: | |
8036 | return nds32_convert_32_to_16_alu1 (abfd, insn, pinsn16, pinsn_type); | |
8037 | ||
8038 | case N32_OP6_ALU2: | |
8039 | return nds32_convert_32_to_16_alu2 (abfd, insn, pinsn16, pinsn_type); | |
8040 | ||
8041 | case N32_OP6_BR1: | |
8042 | if (!IS_WITHIN_S (N32_IMM14S (insn), 8)) | |
8043 | goto done; | |
8044 | ||
4ec521f2 | 8045 | if ((insn & N32_BIT (14)) == 0) |
35c08157 KLC |
8046 | { |
8047 | /* N32_BR1_BEQ */ | |
8048 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5 | |
8049 | && N32_RT5 (insn) != REG_R5) | |
8050 | insn16 = N16_TYPE38 (BEQS38, N32_RT5 (insn), N32_IMM14S (insn)); | |
8051 | else if (N32_IS_RA3 (insn) && N32_RT5 (insn) == REG_R5 | |
8052 | && N32_RA5 (insn) != REG_R5) | |
8053 | insn16 = N16_TYPE38 (BEQS38, N32_RA5 (insn), N32_IMM14S (insn)); | |
8054 | insn_type = NDS32_INSN_BEQS38; | |
8055 | break; | |
8056 | } | |
8057 | else | |
8058 | { | |
8059 | /* N32_BR1_BNE */ | |
8060 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5 | |
8061 | && N32_RT5 (insn) != REG_R5) | |
8062 | insn16 = N16_TYPE38 (BNES38, N32_RT5 (insn), N32_IMM14S (insn)); | |
8063 | else if (N32_IS_RA3 (insn) && N32_RT5 (insn) == REG_R5 | |
8064 | && N32_RA5 (insn) != REG_R5) | |
8065 | insn16 = N16_TYPE38 (BNES38, N32_RA5 (insn), N32_IMM14S (insn)); | |
8066 | insn_type = NDS32_INSN_BNES38; | |
8067 | break; | |
8068 | } | |
8069 | break; | |
8070 | ||
8071 | case N32_OP6_BR2: | |
8072 | switch (N32_BR2_SUB (insn)) | |
8073 | { | |
8074 | case N32_BR2_BEQZ: | |
8075 | if (N32_IS_RT3 (insn) && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
8076 | { | |
8077 | insn16 = N16_TYPE38 (BEQZ38, N32_RT5 (insn), N32_IMM16S (insn)); | |
8078 | insn_type = NDS32_INSN_BEQZ38; | |
8079 | } | |
1c8f6a4d KLC |
8080 | else if (N32_RT5 (insn) == REG_R15 |
8081 | && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
35c08157 KLC |
8082 | { |
8083 | insn16 = N16_TYPE8 (BEQZS8, N32_IMM16S (insn)); | |
8084 | insn_type = NDS32_INSN_BEQZS8; | |
8085 | } | |
8086 | break; | |
8087 | ||
8088 | case N32_BR2_BNEZ: | |
8089 | if (N32_IS_RT3 (insn) && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
8090 | { | |
8091 | insn16 = N16_TYPE38 (BNEZ38, N32_RT5 (insn), N32_IMM16S (insn)); | |
8092 | insn_type = NDS32_INSN_BNEZ38; | |
8093 | } | |
1c8f6a4d KLC |
8094 | else if (N32_RT5 (insn) == REG_R15 |
8095 | && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
35c08157 KLC |
8096 | { |
8097 | insn16 = N16_TYPE8 (BNEZS8, N32_IMM16S (insn)); | |
8098 | insn_type = NDS32_INSN_BNEZS8; | |
8099 | } | |
8100 | break; | |
8101 | ||
fbaf61ad NC |
8102 | case N32_BR2_SOP0: |
8103 | if (__GF (insn, 20, 5) == 0 && IS_WITHIN_U (N32_IMM16S (insn), 9)) | |
35c08157 KLC |
8104 | { |
8105 | insn16 = N16_TYPE9 (IFCALL9, N32_IMM16S (insn)); | |
8106 | insn_type = NDS32_INSN_IFCALL9; | |
8107 | } | |
8108 | break; | |
8109 | } | |
8110 | break; | |
8111 | ||
8112 | case N32_OP6_JI: | |
4ec521f2 | 8113 | if ((insn & N32_BIT (24)) == 0) |
35c08157 KLC |
8114 | { |
8115 | /* N32_JI_J */ | |
8116 | if (IS_WITHIN_S (N32_IMM24S (insn), 8)) | |
8117 | { | |
8118 | insn16 = N16_TYPE8 (J8, N32_IMM24S (insn)); | |
8119 | insn_type = NDS32_INSN_J8; | |
8120 | } | |
8121 | } | |
8122 | break; | |
8123 | ||
8124 | case N32_OP6_JREG: | |
8125 | if (__GF (insn, 8, 2) != 0) | |
8126 | goto done; | |
8127 | ||
8128 | switch (N32_IMMU (insn, 5)) | |
8129 | { | |
8130 | case N32_JREG_JR: | |
8131 | if (N32_JREG_HINT (insn) == 0) | |
8132 | { | |
8133 | /* jr */ | |
8134 | insn16 = N16_TYPE5 (JR5, N32_RB5 (insn)); | |
8135 | insn_type = NDS32_INSN_JR5; | |
8136 | } | |
8137 | else if (N32_JREG_HINT (insn) == 1) | |
8138 | { | |
8139 | /* ret */ | |
8140 | insn16 = N16_TYPE5 (RET5, N32_RB5 (insn)); | |
8141 | insn_type = NDS32_INSN_RET5; | |
8142 | } | |
8143 | else if (N32_JREG_HINT (insn) == 3) | |
8144 | { | |
8145 | /* ifret = mov55 $sp, $sp */ | |
8146 | insn16 = N16_TYPE55 (MOV55, REG_SP, REG_SP); | |
8147 | insn_type = NDS32_INSN_IFRET; | |
8148 | } | |
8149 | break; | |
8150 | ||
8151 | case N32_JREG_JRAL: | |
8152 | /* It's convertible when return rt5 is $lp and address | |
8153 | translation is kept. */ | |
8154 | if (N32_RT5 (insn) == REG_LP && N32_JREG_HINT (insn) == 0) | |
8155 | { | |
8156 | insn16 = N16_TYPE5 (JRAL5, N32_RB5 (insn)); | |
8157 | insn_type = NDS32_INSN_JRAL5; | |
8158 | } | |
8159 | break; | |
8160 | } | |
8161 | break; | |
8162 | ||
8163 | case N32_OP6_MISC: | |
8164 | if (N32_SUB5 (insn) == N32_MISC_BREAK && N32_SWID (insn) < 32) | |
8165 | { | |
8166 | /* For v3, swid above 31 are used for ex9.it. */ | |
8167 | insn16 = N16_TYPE5 (BREAK16, N32_SWID (insn)); | |
8168 | insn_type = NDS32_INSN_BREAK16; | |
8169 | } | |
8170 | break; | |
8171 | ||
8172 | default: | |
8173 | /* This instruction has no 16-bit variant. */ | |
8174 | goto done; | |
8175 | } | |
8176 | ||
dc1e8a47 | 8177 | done: |
35c08157 KLC |
8178 | /* Bit-15 of insn16 should be set for a valid instruction. */ |
8179 | if ((insn16 & 0x8000) == 0) | |
8180 | return 0; | |
8181 | ||
8182 | if (pinsn16) | |
8183 | *pinsn16 = insn16; | |
8184 | if (pinsn_type) | |
8185 | *pinsn_type = insn_type; | |
8186 | return 1; | |
8187 | } | |
8188 | ||
8189 | static int | |
8190 | special_convert_32_to_16 (unsigned long insn, uint16_t *pinsn16, | |
8191 | Elf_Internal_Rela *reloc) | |
8192 | { | |
8193 | uint16_t insn16 = 0; | |
8194 | ||
8195 | if ((reloc->r_addend & R_NDS32_INSN16_FP7U2_FLAG) == 0 | |
8196 | || (ELF32_R_TYPE (reloc->r_info) != R_NDS32_INSN16)) | |
8197 | return 0; | |
8198 | ||
8199 | if (!N32_IS_RT3 (insn)) | |
8200 | return 0; | |
8201 | ||
8202 | switch (N32_OP6 (insn)) | |
8203 | { | |
8204 | case N32_OP6_LWI: | |
8205 | if (N32_RA5 (insn) == REG_GP && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
8206 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
8207 | break; | |
8208 | case N32_OP6_SWI: | |
8209 | if (N32_RA5 (insn) == REG_GP && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
8210 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
8211 | break; | |
8212 | case N32_OP6_HWGP: | |
8213 | if (!IS_WITHIN_U (N32_IMM17S (insn), 7)) | |
8214 | break; | |
8215 | ||
8216 | if (__GF (insn, 17, 3) == 6) | |
8217 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM17S (insn)); | |
8218 | else if (__GF (insn, 17, 3) == 7) | |
8219 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM17S (insn)); | |
8220 | break; | |
8221 | } | |
8222 | ||
8223 | if ((insn16 & 0x8000) == 0) | |
8224 | return 0; | |
8225 | ||
8226 | *pinsn16 = insn16; | |
8227 | return 1; | |
8228 | } | |
8229 | ||
8230 | /* Convert a 16-bit instruction to 32-bit one. | |
8231 | INSN16 it the input and PINSN it the point to output. | |
8232 | Return non-zero on successful. Otherwise 0 is returned. */ | |
8233 | ||
8234 | int | |
8235 | nds32_convert_16_to_32 (bfd *abfd, uint16_t insn16, uint32_t *pinsn) | |
8236 | { | |
8237 | uint32_t insn = 0xffffffff; | |
8238 | unsigned long mach = bfd_get_mach (abfd); | |
8239 | ||
8240 | /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */ | |
8241 | ||
8242 | switch (__GF (insn16, 9, 6)) | |
8243 | { | |
8244 | case 0x4: /* add45 */ | |
1c8f6a4d KLC |
8245 | insn = N32_ALU1 (ADD, N16_RT4 (insn16), N16_RT4 (insn16), |
8246 | N16_RA5 (insn16)); | |
35c08157 KLC |
8247 | goto done; |
8248 | case 0x5: /* sub45 */ | |
1c8f6a4d KLC |
8249 | insn = N32_ALU1 (SUB, N16_RT4 (insn16), N16_RT4 (insn16), |
8250 | N16_RA5 (insn16)); | |
35c08157 KLC |
8251 | goto done; |
8252 | case 0x6: /* addi45 */ | |
1c8f6a4d KLC |
8253 | insn = N32_TYPE2 (ADDI, N16_RT4 (insn16), N16_RT4 (insn16), |
8254 | N16_IMM5U (insn16)); | |
35c08157 KLC |
8255 | goto done; |
8256 | case 0x7: /* subi45 */ | |
1c8f6a4d KLC |
8257 | insn = N32_TYPE2 (ADDI, N16_RT4 (insn16), N16_RT4 (insn16), |
8258 | -N16_IMM5U (insn16)); | |
35c08157 KLC |
8259 | goto done; |
8260 | case 0x8: /* srai45 */ | |
1c8f6a4d KLC |
8261 | insn = N32_ALU1 (SRAI, N16_RT4 (insn16), N16_RT4 (insn16), |
8262 | N16_IMM5U (insn16)); | |
35c08157 KLC |
8263 | goto done; |
8264 | case 0x9: /* srli45 */ | |
1c8f6a4d KLC |
8265 | insn = N32_ALU1 (SRLI, N16_RT4 (insn16), N16_RT4 (insn16), |
8266 | N16_IMM5U (insn16)); | |
35c08157 | 8267 | goto done; |
35c08157 | 8268 | case 0xa: /* slli333 */ |
1c8f6a4d KLC |
8269 | insn = N32_ALU1 (SLLI, N16_RT3 (insn16), N16_RA3 (insn16), |
8270 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8271 | goto done; |
8272 | case 0xc: /* add333 */ | |
1c8f6a4d KLC |
8273 | insn = N32_ALU1 (ADD, N16_RT3 (insn16), N16_RA3 (insn16), |
8274 | N16_RB3 (insn16)); | |
35c08157 KLC |
8275 | goto done; |
8276 | case 0xd: /* sub333 */ | |
1c8f6a4d KLC |
8277 | insn = N32_ALU1 (SUB, N16_RT3 (insn16), N16_RA3 (insn16), |
8278 | N16_RB3 (insn16)); | |
35c08157 KLC |
8279 | goto done; |
8280 | case 0xe: /* addi333 */ | |
1c8f6a4d KLC |
8281 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), N16_RA3 (insn16), |
8282 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8283 | goto done; |
8284 | case 0xf: /* subi333 */ | |
1c8f6a4d KLC |
8285 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), N16_RA3 (insn16), |
8286 | -N16_IMM3U (insn16)); | |
35c08157 | 8287 | goto done; |
35c08157 | 8288 | case 0x10: /* lwi333 */ |
1c8f6a4d KLC |
8289 | insn = N32_TYPE2 (LWI, N16_RT3 (insn16), N16_RA3 (insn16), |
8290 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8291 | goto done; |
8292 | case 0x12: /* lhi333 */ | |
1c8f6a4d KLC |
8293 | insn = N32_TYPE2 (LHI, N16_RT3 (insn16), N16_RA3 (insn16), |
8294 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8295 | goto done; |
8296 | case 0x13: /* lbi333 */ | |
1c8f6a4d KLC |
8297 | insn = N32_TYPE2 (LBI, N16_RT3 (insn16), N16_RA3 (insn16), |
8298 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8299 | goto done; |
8300 | case 0x11: /* lwi333.bi */ | |
1c8f6a4d KLC |
8301 | insn = N32_TYPE2 (LWI_BI, N16_RT3 (insn16), N16_RA3 (insn16), |
8302 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8303 | goto done; |
8304 | case 0x14: /* swi333 */ | |
1c8f6a4d KLC |
8305 | insn = N32_TYPE2 (SWI, N16_RT3 (insn16), N16_RA3 (insn16), |
8306 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8307 | goto done; |
8308 | case 0x16: /* shi333 */ | |
1c8f6a4d KLC |
8309 | insn = N32_TYPE2 (SHI, N16_RT3 (insn16), N16_RA3 (insn16), |
8310 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8311 | goto done; |
8312 | case 0x17: /* sbi333 */ | |
1c8f6a4d KLC |
8313 | insn = N32_TYPE2 (SBI, N16_RT3 (insn16), N16_RA3 (insn16), |
8314 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8315 | goto done; |
8316 | case 0x15: /* swi333.bi */ | |
1c8f6a4d KLC |
8317 | insn = N32_TYPE2 (SWI_BI, N16_RT3 (insn16), N16_RA3 (insn16), |
8318 | N16_IMM3U (insn16)); | |
35c08157 | 8319 | goto done; |
35c08157 | 8320 | case 0x18: /* addri36.sp */ |
1c8f6a4d KLC |
8321 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), REG_SP, |
8322 | N16_IMM6U (insn16) << 2); | |
35c08157 | 8323 | goto done; |
35c08157 | 8324 | case 0x19: /* lwi45.fe */ |
1c8f6a4d KLC |
8325 | insn = N32_TYPE2 (LWI, N16_RT4 (insn16), REG_R8, |
8326 | (N16_IMM5U (insn16) - 32)); | |
35c08157 KLC |
8327 | goto done; |
8328 | case 0x1a: /* lwi450 */ | |
8329 | insn = N32_TYPE2 (LWI, N16_RT4 (insn16), N16_RA5 (insn16), 0); | |
8330 | goto done; | |
8331 | case 0x1b: /* swi450 */ | |
8332 | insn = N32_TYPE2 (SWI, N16_RT4 (insn16), N16_RA5 (insn16), 0); | |
8333 | goto done; | |
8334 | ||
1c8f6a4d | 8335 | /* These are r15 implied instructions. */ |
35c08157 KLC |
8336 | case 0x30: /* slts45 */ |
8337 | insn = N32_ALU1 (SLTS, REG_TA, N16_RT4 (insn16), N16_RA5 (insn16)); | |
8338 | goto done; | |
8339 | case 0x31: /* slt45 */ | |
8340 | insn = N32_ALU1 (SLT, REG_TA, N16_RT4 (insn16), N16_RA5 (insn16)); | |
8341 | goto done; | |
8342 | case 0x32: /* sltsi45 */ | |
8343 | insn = N32_TYPE2 (SLTSI, REG_TA, N16_RT4 (insn16), N16_IMM5U (insn16)); | |
8344 | goto done; | |
8345 | case 0x33: /* slti45 */ | |
8346 | insn = N32_TYPE2 (SLTI, REG_TA, N16_RT4 (insn16), N16_IMM5U (insn16)); | |
8347 | goto done; | |
8348 | case 0x34: /* beqzs8, bnezs8 */ | |
4ec521f2 | 8349 | if (insn16 & N32_BIT (8)) |
35c08157 KLC |
8350 | insn = N32_BR2 (BNEZ, REG_TA, N16_IMM8S (insn16)); |
8351 | else | |
8352 | insn = N32_BR2 (BEQZ, REG_TA, N16_IMM8S (insn16)); | |
8353 | goto done; | |
8354 | ||
8355 | case 0x35: /* break16, ex9.it */ | |
8356 | /* Only consider range of v3 break16. */ | |
8357 | insn = N32_TYPE0 (MISC, (N16_IMM5U (insn16) << 5) | N32_MISC_BREAK); | |
8358 | goto done; | |
8359 | ||
8360 | case 0x3c: /* ifcall9 */ | |
fbaf61ad | 8361 | insn = N32_BR2 (SOP0, 0, N16_IMM9U (insn16)); |
35c08157 KLC |
8362 | goto done; |
8363 | case 0x3d: /* movpi45 */ | |
8364 | insn = N32_TYPE1 (MOVI, N16_RT4 (insn16), N16_IMM5U (insn16) + 16); | |
8365 | goto done; | |
8366 | ||
8367 | case 0x3f: /* MISC33 */ | |
1c8f6a4d | 8368 | switch (insn16 & 0x7) |
35c08157 KLC |
8369 | { |
8370 | case 2: /* neg33 */ | |
8371 | insn = N32_TYPE2 (SUBRI, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8372 | break; | |
8373 | case 3: /* not33 */ | |
1c8f6a4d KLC |
8374 | insn = N32_ALU1 (NOR, N16_RT3 (insn16), N16_RA3 (insn16), |
8375 | N16_RA3 (insn16)); | |
35c08157 KLC |
8376 | break; |
8377 | case 4: /* mul33 */ | |
1c8f6a4d KLC |
8378 | insn = N32_ALU2 (MUL, N16_RT3 (insn16), N16_RT3 (insn16), |
8379 | N16_RA3 (insn16)); | |
35c08157 KLC |
8380 | break; |
8381 | case 5: /* xor33 */ | |
1c8f6a4d KLC |
8382 | insn = N32_ALU1 (XOR, N16_RT3 (insn16), N16_RT3 (insn16), |
8383 | N16_RA3 (insn16)); | |
35c08157 KLC |
8384 | break; |
8385 | case 6: /* and33 */ | |
1c8f6a4d KLC |
8386 | insn = N32_ALU1 (AND, N16_RT3 (insn16), N16_RT3 (insn16), |
8387 | N16_RA3 (insn16)); | |
35c08157 KLC |
8388 | break; |
8389 | case 7: /* or33 */ | |
1c8f6a4d KLC |
8390 | insn = N32_ALU1 (OR, N16_RT3 (insn16), N16_RT3 (insn16), |
8391 | N16_RA3 (insn16)); | |
35c08157 KLC |
8392 | break; |
8393 | } | |
8394 | goto done; | |
8395 | ||
1c8f6a4d | 8396 | case 0xb: |
35c08157 KLC |
8397 | switch (insn16 & 0x7) |
8398 | { | |
8399 | case 0: /* zeb33 */ | |
8400 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 0xff); | |
8401 | break; | |
8402 | case 1: /* zeh33 */ | |
8403 | insn = N32_ALU1 (ZEH, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8404 | break; | |
8405 | case 2: /* seb33 */ | |
8406 | insn = N32_ALU1 (SEB, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8407 | break; | |
8408 | case 3: /* seh33 */ | |
8409 | insn = N32_ALU1 (SEH, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8410 | break; | |
8411 | case 4: /* xlsb33 */ | |
8412 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 1); | |
8413 | break; | |
8414 | case 5: /* x11b33 */ | |
8415 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 0x7ff); | |
8416 | break; | |
8417 | case 6: /* bmski33 */ | |
8418 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RT3 (insn16), | |
1c8f6a4d | 8419 | 1 << __GF (insn16, 3, 3)); |
35c08157 KLC |
8420 | break; |
8421 | case 7: /* fexti33 */ | |
8422 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RT3 (insn16), | |
1c8f6a4d | 8423 | (1 << (__GF (insn16, 3, 3) + 1)) - 1); |
35c08157 KLC |
8424 | break; |
8425 | } | |
8426 | goto done; | |
8427 | } | |
8428 | ||
8429 | switch (__GF (insn16, 10, 5)) | |
8430 | { | |
8431 | case 0x0: /* mov55 or ifret16 */ | |
8432 | if (mach >= MACH_V3 && N16_RT5 (insn16) == REG_SP | |
8433 | && N16_RT5 (insn16) == N16_RA5 (insn16)) | |
1c8f6a4d | 8434 | insn = N32_JREG (JR, 0, 0, 0, 3); |
35c08157 | 8435 | else |
1c8f6a4d | 8436 | insn = N32_TYPE2 (ADDI, N16_RT5 (insn16), N16_RA5 (insn16), 0); |
35c08157 KLC |
8437 | goto done; |
8438 | case 0x1: /* movi55 */ | |
8439 | insn = N32_TYPE1 (MOVI, N16_RT5 (insn16), N16_IMM5S (insn16)); | |
8440 | goto done; | |
8441 | case 0x1b: /* addi10s (V2) */ | |
8442 | insn = N32_TYPE2 (ADDI, REG_SP, REG_SP, N16_IMM10S (insn16)); | |
8443 | goto done; | |
8444 | } | |
8445 | ||
8446 | switch (__GF (insn16, 11, 4)) | |
8447 | { | |
8448 | case 0x7: /* lwi37.fp/swi37.fp */ | |
4ec521f2 | 8449 | if (insn16 & N32_BIT (7)) /* swi37.fp */ |
35c08157 KLC |
8450 | insn = N32_TYPE2 (SWI, N16_RT38 (insn16), REG_FP, N16_IMM7U (insn16)); |
8451 | else /* lwi37.fp */ | |
8452 | insn = N32_TYPE2 (LWI, N16_RT38 (insn16), REG_FP, N16_IMM7U (insn16)); | |
8453 | goto done; | |
8454 | case 0x8: /* beqz38 */ | |
8455 | insn = N32_BR2 (BEQZ, N16_RT38 (insn16), N16_IMM8S (insn16)); | |
8456 | goto done; | |
8457 | case 0x9: /* bnez38 */ | |
8458 | insn = N32_BR2 (BNEZ, N16_RT38 (insn16), N16_IMM8S (insn16)); | |
8459 | goto done; | |
8460 | case 0xa: /* beqs38/j8, implied r5 */ | |
8461 | if (N16_RT38 (insn16) == 5) | |
8462 | insn = N32_JI (J, N16_IMM8S (insn16)); | |
8463 | else | |
8464 | insn = N32_BR1 (BEQ, N16_RT38 (insn16), REG_R5, N16_IMM8S (insn16)); | |
8465 | goto done; | |
fbaf61ad | 8466 | case 0xb: /* bnes38 and others. */ |
35c08157 KLC |
8467 | if (N16_RT38 (insn16) == 5) |
8468 | { | |
8469 | switch (__GF (insn16, 5, 3)) | |
8470 | { | |
8471 | case 0: /* jr5 */ | |
8472 | insn = N32_JREG (JR, 0, N16_RA5 (insn16), 0, 0); | |
8473 | break; | |
8474 | case 4: /* ret5 */ | |
8475 | insn = N32_JREG (JR, 0, N16_RA5 (insn16), 0, 1); | |
8476 | break; | |
8477 | case 1: /* jral5 */ | |
8478 | insn = N32_JREG (JRAL, REG_LP, N16_RA5 (insn16), 0, 0); | |
8479 | break; | |
8480 | case 2: /* ex9.it imm5 */ | |
8481 | /* ex9.it had no 32-bit variantl. */ | |
8482 | break; | |
8483 | case 5: /* add5.pc */ | |
8484 | /* add5.pc had no 32-bit variantl. */ | |
8485 | break; | |
8486 | } | |
8487 | } | |
8488 | else /* bnes38 */ | |
8489 | insn = N32_BR1 (BNE, N16_RT38 (insn16), REG_R5, N16_IMM8S (insn16)); | |
8490 | goto done; | |
8491 | case 0xe: /* lwi37/swi37 */ | |
8492 | if (insn16 & (1 << 7)) /* swi37.sp */ | |
8493 | insn = N32_TYPE2 (SWI, N16_RT38 (insn16), REG_SP, N16_IMM7U (insn16)); | |
8494 | else /* lwi37.sp */ | |
8495 | insn = N32_TYPE2 (LWI, N16_RT38 (insn16), REG_SP, N16_IMM7U (insn16)); | |
8496 | goto done; | |
8497 | } | |
8498 | ||
dc1e8a47 | 8499 | done: |
35c08157 KLC |
8500 | if (insn & 0x80000000) |
8501 | return 0; | |
8502 | ||
8503 | if (pinsn) | |
8504 | *pinsn = insn; | |
8505 | return 1; | |
8506 | } | |
8507 | \f | |
fbaf61ad | 8508 | |
0a1b45a2 | 8509 | static bool |
35c08157 KLC |
8510 | is_sda_access_insn (unsigned long insn) |
8511 | { | |
8512 | switch (N32_OP6 (insn)) | |
8513 | { | |
8514 | case N32_OP6_LWI: | |
8515 | case N32_OP6_LHI: | |
8516 | case N32_OP6_LHSI: | |
8517 | case N32_OP6_LBI: | |
8518 | case N32_OP6_LBSI: | |
8519 | case N32_OP6_SWI: | |
8520 | case N32_OP6_SHI: | |
8521 | case N32_OP6_SBI: | |
8522 | case N32_OP6_LWC: | |
8523 | case N32_OP6_LDC: | |
8524 | case N32_OP6_SWC: | |
8525 | case N32_OP6_SDC: | |
0a1b45a2 | 8526 | return true; |
35c08157 KLC |
8527 | default: |
8528 | ; | |
8529 | } | |
0a1b45a2 | 8530 | return false; |
35c08157 KLC |
8531 | } |
8532 | ||
8533 | static unsigned long | |
8534 | turn_insn_to_sda_access (uint32_t insn, bfd_signed_vma type, uint32_t *pinsn) | |
8535 | { | |
8536 | uint32_t oinsn = 0; | |
8537 | ||
8538 | switch (type) | |
8539 | { | |
8540 | case R_NDS32_GOT_LO12: | |
8541 | case R_NDS32_GOTOFF_LO12: | |
8542 | case R_NDS32_PLTREL_LO12: | |
8543 | case R_NDS32_PLT_GOTREL_LO12: | |
8544 | case R_NDS32_LO12S0_RELA: | |
8545 | switch (N32_OP6 (insn)) | |
8546 | { | |
8547 | case N32_OP6_LBI: | |
8548 | /* lbi.gp */ | |
8549 | oinsn = N32_TYPE1 (LBGP, N32_RT5 (insn), 0); | |
8550 | break; | |
8551 | case N32_OP6_LBSI: | |
8552 | /* lbsi.gp */ | |
4ec521f2 | 8553 | oinsn = N32_TYPE1 (LBGP, N32_RT5 (insn), N32_BIT (19)); |
35c08157 KLC |
8554 | break; |
8555 | case N32_OP6_SBI: | |
8556 | /* sbi.gp */ | |
8557 | oinsn = N32_TYPE1 (SBGP, N32_RT5 (insn), 0); | |
8558 | break; | |
8559 | case N32_OP6_ORI: | |
8560 | /* addi.gp */ | |
4ec521f2 | 8561 | oinsn = N32_TYPE1 (SBGP, N32_RT5 (insn), N32_BIT (19)); |
35c08157 KLC |
8562 | break; |
8563 | } | |
8564 | break; | |
8565 | ||
8566 | case R_NDS32_LO12S1_RELA: | |
8567 | switch (N32_OP6 (insn)) | |
8568 | { | |
8569 | case N32_OP6_LHI: | |
8570 | /* lhi.gp */ | |
8571 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), 0); | |
8572 | break; | |
8573 | case N32_OP6_LHSI: | |
8574 | /* lhsi.gp */ | |
4ec521f2 | 8575 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), N32_BIT (18)); |
35c08157 KLC |
8576 | break; |
8577 | case N32_OP6_SHI: | |
8578 | /* shi.gp */ | |
4ec521f2 | 8579 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), N32_BIT (19)); |
35c08157 KLC |
8580 | break; |
8581 | } | |
8582 | break; | |
8583 | ||
8584 | case R_NDS32_LO12S2_RELA: | |
8585 | switch (N32_OP6 (insn)) | |
8586 | { | |
8587 | case N32_OP6_LWI: | |
8588 | /* lwi.gp */ | |
8589 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (6, 17, 3)); | |
8590 | break; | |
8591 | case N32_OP6_SWI: | |
8592 | /* swi.gp */ | |
8593 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (7, 17, 3)); | |
8594 | break; | |
8595 | } | |
8596 | break; | |
8597 | ||
8598 | case R_NDS32_LO12S2_DP_RELA: | |
8599 | case R_NDS32_LO12S2_SP_RELA: | |
8600 | oinsn = (insn & 0x7ff07000) | (REG_GP << 15); | |
8601 | break; | |
8602 | } | |
8603 | ||
8604 | if (oinsn) | |
8605 | *pinsn = oinsn; | |
8606 | ||
8607 | return oinsn != 0; | |
8608 | } | |
8609 | ||
8610 | /* Linker hasn't found the correct merge section for non-section symbol | |
8611 | in relax time, this work is left to the function elf_link_input_bfd(). | |
8612 | So for non-section symbol, _bfd_merged_section_offset is also needed | |
8613 | to find the correct symbol address. */ | |
8614 | ||
8615 | static bfd_vma | |
8616 | nds32_elf_rela_local_sym (bfd *abfd, Elf_Internal_Sym *sym, | |
8617 | asection **psec, Elf_Internal_Rela *rel) | |
8618 | { | |
8619 | asection *sec = *psec; | |
8620 | bfd_vma relocation; | |
8621 | ||
8622 | relocation = (sec->output_section->vma | |
8623 | + sec->output_offset + sym->st_value); | |
8624 | if ((sec->flags & SEC_MERGE) && sec->sec_info_type == SEC_INFO_TYPE_MERGE) | |
8625 | { | |
8626 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
8627 | rel->r_addend = | |
8628 | _bfd_merged_section_offset (abfd, psec, | |
8629 | elf_section_data (sec)->sec_info, | |
8630 | sym->st_value + rel->r_addend); | |
8631 | else | |
8632 | rel->r_addend = | |
8633 | _bfd_merged_section_offset (abfd, psec, | |
8634 | elf_section_data (sec)->sec_info, | |
8635 | sym->st_value) + rel->r_addend; | |
8636 | ||
8637 | if (sec != *psec) | |
8638 | { | |
8639 | /* If we have changed the section, and our original section is | |
8640 | marked with SEC_EXCLUDE, it means that the original | |
8641 | SEC_MERGE section has been completely subsumed in some | |
8642 | other SEC_MERGE section. In this case, we need to leave | |
8643 | some info around for --emit-relocs. */ | |
8644 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
8645 | sec->kept_section = *psec; | |
8646 | sec = *psec; | |
8647 | } | |
8648 | rel->r_addend -= relocation; | |
8649 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
8650 | } | |
8651 | return relocation; | |
8652 | } | |
8653 | ||
8654 | static bfd_vma | |
8655 | calculate_memory_address (bfd *abfd, Elf_Internal_Rela *irel, | |
8656 | Elf_Internal_Sym *isymbuf, | |
8657 | Elf_Internal_Shdr *symtab_hdr) | |
8658 | { | |
8659 | bfd_signed_vma foff; | |
8660 | bfd_vma symval, addend; | |
8661 | Elf_Internal_Rela irel_fn; | |
8662 | Elf_Internal_Sym *isym; | |
8663 | asection *sym_sec; | |
8664 | ||
8665 | /* Get the value of the symbol referred to by the reloc. */ | |
8666 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
8667 | { | |
8668 | /* A local symbol. */ | |
8669 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
8670 | ||
8671 | if (isym->st_shndx == SHN_UNDEF) | |
8672 | sym_sec = bfd_und_section_ptr; | |
8673 | else if (isym->st_shndx == SHN_ABS) | |
8674 | sym_sec = bfd_abs_section_ptr; | |
8675 | else if (isym->st_shndx == SHN_COMMON) | |
8676 | sym_sec = bfd_com_section_ptr; | |
8677 | else | |
8678 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
8679 | memcpy (&irel_fn, irel, sizeof (Elf_Internal_Rela)); | |
8680 | symval = nds32_elf_rela_local_sym (abfd, isym, &sym_sec, &irel_fn); | |
8681 | addend = irel_fn.r_addend; | |
8682 | } | |
8683 | else | |
8684 | { | |
8685 | unsigned long indx; | |
8686 | struct elf_link_hash_entry *h; | |
8687 | ||
8688 | /* An external symbol. */ | |
8689 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
8690 | h = elf_sym_hashes (abfd)[indx]; | |
8691 | BFD_ASSERT (h != NULL); | |
8692 | ||
8693 | while (h->root.type == bfd_link_hash_indirect | |
8694 | || h->root.type == bfd_link_hash_warning) | |
8695 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
8696 | ||
8697 | if (h->root.type != bfd_link_hash_defined | |
8698 | && h->root.type != bfd_link_hash_defweak) | |
8699 | /* This appears to be a reference to an undefined | |
8700 | symbol. Just ignore it--it will be caught by the | |
8701 | regular reloc processing. */ | |
8702 | return 0; | |
8703 | ||
8704 | if (h->root.u.def.section->flags & SEC_MERGE) | |
8705 | { | |
8706 | sym_sec = h->root.u.def.section; | |
8707 | symval = _bfd_merged_section_offset (abfd, &sym_sec, elf_section_data | |
8708 | (sym_sec)->sec_info, h->root.u.def.value); | |
8709 | symval = symval + sym_sec->output_section->vma | |
8710 | + sym_sec->output_offset; | |
8711 | } | |
8712 | else | |
8713 | symval = (h->root.u.def.value | |
8714 | + h->root.u.def.section->output_section->vma | |
8715 | + h->root.u.def.section->output_offset); | |
8716 | addend = irel->r_addend; | |
8717 | } | |
8718 | ||
8719 | foff = symval + addend; | |
8720 | ||
8721 | return foff; | |
8722 | } | |
8723 | ||
35c08157 KLC |
8724 | static int |
8725 | is_16bit_NOP (bfd *abfd ATTRIBUTE_UNUSED, | |
8726 | asection *sec, Elf_Internal_Rela *rel) | |
8727 | { | |
8728 | bfd_byte *contents; | |
8729 | unsigned short insn16; | |
8730 | ||
8731 | if (!(rel->r_addend & R_NDS32_INSN16_CONVERT_FLAG)) | |
0a1b45a2 | 8732 | return false; |
35c08157 KLC |
8733 | contents = elf_section_data (sec)->this_hdr.contents; |
8734 | insn16 = bfd_getb16 (contents + rel->r_offset); | |
8735 | if (insn16 == NDS32_NOP16) | |
0a1b45a2 AM |
8736 | return true; |
8737 | return false; | |
35c08157 KLC |
8738 | } |
8739 | ||
8740 | /* It checks whether the instruction could be converted to | |
8741 | 16-bit form and returns the converted one. | |
8742 | ||
8743 | `internal_relocs' is supposed to be sorted. */ | |
8744 | ||
8745 | static int | |
8746 | is_convert_32_to_16 (bfd *abfd, asection *sec, | |
8747 | Elf_Internal_Rela *reloc, | |
8748 | Elf_Internal_Rela *internal_relocs, | |
8749 | Elf_Internal_Rela *irelend, | |
8750 | uint16_t *insn16) | |
8751 | { | |
8752 | #define NORMAL_32_TO_16 (1 << 0) | |
8753 | #define SPECIAL_32_TO_16 (1 << 1) | |
8754 | bfd_byte *contents = NULL; | |
8755 | bfd_signed_vma off; | |
8756 | bfd_vma mem_addr; | |
8757 | uint32_t insn = 0; | |
8758 | Elf_Internal_Rela *pc_rel; | |
35c08157 KLC |
8759 | Elf_Internal_Shdr *symtab_hdr; |
8760 | Elf_Internal_Sym *isymbuf = NULL; | |
8761 | int convert_type; | |
8762 | bfd_vma offset; | |
8763 | ||
8764 | if (reloc->r_offset + 4 > sec->size) | |
0a1b45a2 | 8765 | return false; |
35c08157 KLC |
8766 | |
8767 | offset = reloc->r_offset; | |
8768 | ||
0a1b45a2 AM |
8769 | if (!nds32_get_section_contents (abfd, sec, &contents, true)) |
8770 | return false; | |
35c08157 KLC |
8771 | insn = bfd_getb32 (contents + offset); |
8772 | ||
8773 | if (nds32_convert_32_to_16 (abfd, insn, insn16, NULL)) | |
8774 | convert_type = NORMAL_32_TO_16; | |
8775 | else if (special_convert_32_to_16 (insn, insn16, reloc)) | |
8776 | convert_type = SPECIAL_32_TO_16; | |
8777 | else | |
0a1b45a2 | 8778 | return false; |
35c08157 KLC |
8779 | |
8780 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8781 | if (!nds32_get_local_syms (abfd, sec, &isymbuf)) | |
0a1b45a2 | 8782 | return false; |
35c08157 KLC |
8783 | |
8784 | /* Find the first relocation of the same relocation-type, | |
8785 | so we iteratie them forward. */ | |
8786 | pc_rel = reloc; | |
1c8f6a4d | 8787 | while ((pc_rel - 1) >= internal_relocs && pc_rel[-1].r_offset == offset) |
35c08157 KLC |
8788 | pc_rel--; |
8789 | ||
8790 | for (; pc_rel < irelend && pc_rel->r_offset == offset; pc_rel++) | |
8791 | { | |
8792 | if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_15_PCREL_RELA | |
8793 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17_PCREL_RELA | |
8794 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PCREL_RELA | |
8795 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PLTREL) | |
8796 | { | |
fbaf61ad | 8797 | off = calculate_offset (abfd, sec, pc_rel, isymbuf, symtab_hdr); |
1c8f6a4d KLC |
8798 | if (off >= ACCURATE_8BIT_S1 || off < -ACCURATE_8BIT_S1 |
8799 | || off == 0) | |
0a1b45a2 | 8800 | return false; |
35c08157 KLC |
8801 | break; |
8802 | } | |
8803 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_20_RELA) | |
8804 | { | |
8805 | /* movi => movi55 */ | |
1c8f6a4d KLC |
8806 | mem_addr = calculate_memory_address (abfd, pc_rel, isymbuf, |
8807 | symtab_hdr); | |
8808 | /* mem_addr is unsigned, but the value should | |
8809 | be between [-16, 15]. */ | |
35c08157 | 8810 | if ((mem_addr + 0x10) >> 5) |
0a1b45a2 | 8811 | return false; |
35c08157 KLC |
8812 | break; |
8813 | } | |
1c8f6a4d KLC |
8814 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_TLS_LE_20) |
8815 | || (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_TLS_LE_LO12)) | |
8816 | { | |
8817 | /* It never happen movi to movi55 for R_NDS32_TLS_LE_20, | |
8818 | because it can be relaxed to addi for TLS_LE_ADD. */ | |
0a1b45a2 | 8819 | return false; |
1c8f6a4d | 8820 | } |
35c08157 KLC |
8821 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA15S2_RELA |
8822 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA17S2_RELA) | |
8823 | && (reloc->r_addend & R_NDS32_INSN16_FP7U2_FLAG) | |
8824 | && convert_type == SPECIAL_32_TO_16) | |
8825 | { | |
8826 | /* fp-as-gp | |
8827 | We've selected a best fp-base for this access, so we can | |
8828 | always resolve it anyway. Do nothing. */ | |
8829 | break; | |
8830 | } | |
8831 | else if ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_NONE | |
8832 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_RELA_GNU_VTINHERIT)) | |
8833 | || ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_RELA_GNU_VTENTRY) | |
8834 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_INSN16)) | |
8835 | || ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_LOADSTORE) | |
8836 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_DWARF2_OP1_RELA))) | |
8837 | { | |
1c8f6a4d KLC |
8838 | /* Prevent unresolved addi instruction translate |
8839 | to addi45 or addi333. */ | |
0a1b45a2 | 8840 | return false; |
35c08157 | 8841 | } |
1c8f6a4d KLC |
8842 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17IFC_PCREL_RELA)) |
8843 | { | |
fbaf61ad | 8844 | off = calculate_offset (abfd, sec, pc_rel, isymbuf, symtab_hdr); |
1c8f6a4d | 8845 | if (off >= ACCURATE_U9BIT_S1 || off <= 0) |
0a1b45a2 | 8846 | return false; |
1c8f6a4d KLC |
8847 | break; |
8848 | } | |
35c08157 KLC |
8849 | } |
8850 | ||
0a1b45a2 | 8851 | return true; |
35c08157 KLC |
8852 | } |
8853 | ||
8854 | static void | |
8855 | nds32_elf_write_16 (bfd *abfd ATTRIBUTE_UNUSED, bfd_byte *contents, | |
8856 | Elf_Internal_Rela *reloc, | |
8857 | Elf_Internal_Rela *internal_relocs, | |
8858 | Elf_Internal_Rela *irelend, | |
8859 | unsigned short insn16) | |
8860 | { | |
8861 | Elf_Internal_Rela *pc_rel; | |
8862 | bfd_vma offset; | |
8863 | ||
8864 | offset = reloc->r_offset; | |
8865 | bfd_putb16 (insn16, contents + offset); | |
8866 | /* Find the first relocation of the same relocation-type, | |
8867 | so we iteratie them forward. */ | |
8868 | pc_rel = reloc; | |
8869 | while ((pc_rel - 1) > internal_relocs && pc_rel[-1].r_offset == offset) | |
8870 | pc_rel--; | |
8871 | ||
8872 | for (; pc_rel < irelend && pc_rel->r_offset == offset; pc_rel++) | |
8873 | { | |
8874 | if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_15_PCREL_RELA | |
8875 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17_PCREL_RELA | |
8876 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PCREL_RELA) | |
8877 | { | |
8878 | pc_rel->r_info = | |
8879 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_9_PCREL_RELA); | |
8880 | } | |
8881 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PLTREL) | |
8882 | pc_rel->r_info = | |
8883 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_9_PLTREL); | |
8884 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_20_RELA) | |
8885 | pc_rel->r_info = | |
8886 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_5_RELA); | |
8887 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA15S2_RELA | |
8888 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA17S2_RELA) | |
8889 | pc_rel->r_info = | |
8890 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_SDA_FP7U2_RELA); | |
1c8f6a4d KLC |
8891 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17IFC_PCREL_RELA)) |
8892 | pc_rel->r_info = | |
8893 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_10IFCU_PCREL_RELA); | |
35c08157 KLC |
8894 | } |
8895 | } | |
8896 | ||
8897 | /* Find a relocation of type specified by `reloc_type' | |
8898 | of the same r_offset with reloc. | |
8899 | If not found, return irelend. | |
8900 | ||
8901 | Assuming relocations are sorted by r_offset, | |
8902 | we find the relocation from `reloc' backward untill relocs, | |
8903 | or find it from `reloc' forward untill irelend. */ | |
8904 | ||
8905 | static Elf_Internal_Rela * | |
8906 | find_relocs_at_address (Elf_Internal_Rela *reloc, | |
8907 | Elf_Internal_Rela *relocs, | |
8908 | Elf_Internal_Rela *irelend, | |
8909 | enum elf_nds32_reloc_type reloc_type) | |
8910 | { | |
8911 | Elf_Internal_Rela *rel_t; | |
8912 | ||
8913 | /* Find backward. */ | |
8914 | for (rel_t = reloc; | |
8915 | rel_t >= relocs && rel_t->r_offset == reloc->r_offset; | |
8916 | rel_t--) | |
8917 | if (ELF32_R_TYPE (rel_t->r_info) == reloc_type) | |
8918 | return rel_t; | |
8919 | ||
1c8f6a4d | 8920 | /* We didn't find it backward. Try find it forward. */ |
35c08157 KLC |
8921 | for (rel_t = reloc; |
8922 | rel_t < irelend && rel_t->r_offset == reloc->r_offset; | |
8923 | rel_t++) | |
8924 | if (ELF32_R_TYPE (rel_t->r_info) == reloc_type) | |
8925 | return rel_t; | |
8926 | ||
8927 | return irelend; | |
8928 | } | |
8929 | ||
8930 | /* Find a relocation of specified type and offset. | |
8931 | `reloc' is just a refence point to find a relocation at specified offset. | |
8932 | If not found, return irelend. | |
8933 | ||
8934 | Assuming relocations are sorted by r_offset, | |
8935 | we find the relocation from `reloc' backward untill relocs, | |
8936 | or find it from `reloc' forward untill irelend. */ | |
8937 | ||
8938 | static Elf_Internal_Rela * | |
8939 | find_relocs_at_address_addr (Elf_Internal_Rela *reloc, | |
8940 | Elf_Internal_Rela *relocs, | |
8941 | Elf_Internal_Rela *irelend, | |
6cae483a | 8942 | enum elf_nds32_reloc_type reloc_type, |
35c08157 KLC |
8943 | bfd_vma offset_p) |
8944 | { | |
8945 | Elf_Internal_Rela *rel_t = NULL; | |
8946 | ||
8947 | /* First, we try to find a relocation of offset `offset_p', | |
8948 | and then we use find_relocs_at_address to find specific type. */ | |
8949 | ||
8950 | if (reloc->r_offset > offset_p) | |
8951 | { | |
8952 | /* Find backward. */ | |
8953 | for (rel_t = reloc; | |
8954 | rel_t >= relocs && rel_t->r_offset > offset_p; rel_t--) | |
8955 | /* Do nothing. */; | |
8956 | } | |
8957 | else if (reloc->r_offset < offset_p) | |
8958 | { | |
8959 | /* Find forward. */ | |
8960 | for (rel_t = reloc; | |
8961 | rel_t < irelend && rel_t->r_offset < offset_p; rel_t++) | |
8962 | /* Do nothing. */; | |
8963 | } | |
8964 | else | |
8965 | rel_t = reloc; | |
8966 | ||
8967 | /* Not found? */ | |
8968 | if (rel_t < relocs || rel_t == irelend || rel_t->r_offset != offset_p) | |
8969 | return irelend; | |
8970 | ||
8971 | return find_relocs_at_address (rel_t, relocs, irelend, reloc_type); | |
8972 | } | |
8973 | ||
fbaf61ad NC |
8974 | typedef struct nds32_elf_blank nds32_elf_blank_t; |
8975 | struct nds32_elf_blank | |
35c08157 | 8976 | { |
fbaf61ad NC |
8977 | /* Where the blank begins. */ |
8978 | bfd_vma offset; | |
8979 | /* The size of the blank. */ | |
8980 | bfd_vma size; | |
8981 | /* The accumulative size before this blank. */ | |
8982 | bfd_vma total_size; | |
8983 | nds32_elf_blank_t *next; | |
8984 | nds32_elf_blank_t *prev; | |
8985 | }; | |
35c08157 KLC |
8986 | |
8987 | static nds32_elf_blank_t *blank_free_list = NULL; | |
8988 | ||
8989 | static nds32_elf_blank_t * | |
8990 | create_nds32_elf_blank (bfd_vma offset_p, bfd_vma size_p) | |
8991 | { | |
8992 | nds32_elf_blank_t *blank_t; | |
8993 | ||
8994 | if (blank_free_list) | |
8995 | { | |
8996 | blank_t = blank_free_list; | |
8997 | blank_free_list = blank_free_list->next; | |
8998 | } | |
8999 | else | |
9000 | blank_t = bfd_malloc (sizeof (nds32_elf_blank_t)); | |
9001 | ||
9002 | if (blank_t == NULL) | |
9003 | return NULL; | |
9004 | ||
9005 | blank_t->offset = offset_p; | |
9006 | blank_t->size = size_p; | |
9007 | blank_t->total_size = 0; | |
9008 | blank_t->next = NULL; | |
9009 | blank_t->prev = NULL; | |
9010 | ||
9011 | return blank_t; | |
9012 | } | |
9013 | ||
9014 | static void | |
9015 | remove_nds32_elf_blank (nds32_elf_blank_t *blank_p) | |
9016 | { | |
9017 | if (blank_free_list) | |
9018 | { | |
9019 | blank_free_list->prev = blank_p; | |
9020 | blank_p->next = blank_free_list; | |
9021 | } | |
9022 | else | |
9023 | blank_p->next = NULL; | |
9024 | ||
9025 | blank_p->prev = NULL; | |
9026 | blank_free_list = blank_p; | |
9027 | } | |
9028 | ||
9029 | static void | |
9030 | clean_nds32_elf_blank (void) | |
9031 | { | |
9032 | nds32_elf_blank_t *blank_t; | |
9033 | ||
9034 | while (blank_free_list) | |
9035 | { | |
9036 | blank_t = blank_free_list; | |
9037 | blank_free_list = blank_free_list->next; | |
9038 | free (blank_t); | |
9039 | } | |
9040 | } | |
9041 | ||
9042 | static nds32_elf_blank_t * | |
9043 | search_nds32_elf_blank (nds32_elf_blank_t *blank_p, bfd_vma addr) | |
9044 | { | |
9045 | nds32_elf_blank_t *blank_t; | |
9046 | ||
9047 | if (!blank_p) | |
9048 | return NULL; | |
9049 | blank_t = blank_p; | |
9050 | ||
9051 | while (blank_t && addr < blank_t->offset) | |
9052 | blank_t = blank_t->prev; | |
9053 | while (blank_t && blank_t->next && addr >= blank_t->next->offset) | |
9054 | blank_t = blank_t->next; | |
9055 | ||
9056 | return blank_t; | |
9057 | } | |
9058 | ||
9059 | static bfd_vma | |
9060 | get_nds32_elf_blank_total (nds32_elf_blank_t **blank_p, bfd_vma addr, | |
9061 | int overwrite) | |
9062 | { | |
9063 | nds32_elf_blank_t *blank_t; | |
9064 | ||
9065 | blank_t = search_nds32_elf_blank (*blank_p, addr); | |
9066 | if (!blank_t) | |
9067 | return 0; | |
9068 | ||
9069 | if (overwrite) | |
9070 | *blank_p = blank_t; | |
9071 | ||
9072 | if (addr < blank_t->offset + blank_t->size) | |
9073 | return blank_t->total_size + (addr - blank_t->offset); | |
9074 | else | |
9075 | return blank_t->total_size + blank_t->size; | |
9076 | } | |
9077 | ||
0a1b45a2 | 9078 | static bool |
35c08157 KLC |
9079 | insert_nds32_elf_blank (nds32_elf_blank_t **blank_p, bfd_vma addr, bfd_vma len) |
9080 | { | |
9081 | nds32_elf_blank_t *blank_t, *blank_t2; | |
9082 | ||
9083 | if (!*blank_p) | |
9084 | { | |
9085 | *blank_p = create_nds32_elf_blank (addr, len); | |
63b4cc53 | 9086 | return *blank_p != NULL; |
35c08157 KLC |
9087 | } |
9088 | ||
9089 | blank_t = search_nds32_elf_blank (*blank_p, addr); | |
9090 | ||
9091 | if (blank_t == NULL) | |
9092 | { | |
9093 | blank_t = create_nds32_elf_blank (addr, len); | |
9094 | if (!blank_t) | |
0a1b45a2 | 9095 | return false; |
35c08157 KLC |
9096 | while ((*blank_p)->prev != NULL) |
9097 | *blank_p = (*blank_p)->prev; | |
9098 | blank_t->next = *blank_p; | |
9099 | (*blank_p)->prev = blank_t; | |
9100 | (*blank_p) = blank_t; | |
0a1b45a2 | 9101 | return true; |
35c08157 KLC |
9102 | } |
9103 | ||
9104 | if (addr < blank_t->offset + blank_t->size) | |
9105 | { | |
fbaf61ad NC |
9106 | /* Extend the origin blank. */ |
9107 | if (addr + len > blank_t->offset + blank_t->size) | |
9108 | blank_t->size = addr + len - blank_t->offset; | |
35c08157 KLC |
9109 | } |
9110 | else | |
9111 | { | |
9112 | blank_t2 = create_nds32_elf_blank (addr, len); | |
9113 | if (!blank_t2) | |
0a1b45a2 | 9114 | return false; |
35c08157 KLC |
9115 | if (blank_t->next) |
9116 | { | |
9117 | blank_t->next->prev = blank_t2; | |
9118 | blank_t2->next = blank_t->next; | |
9119 | } | |
9120 | blank_t2->prev = blank_t; | |
9121 | blank_t->next = blank_t2; | |
9122 | *blank_p = blank_t2; | |
9123 | } | |
9124 | ||
0a1b45a2 | 9125 | return true; |
35c08157 KLC |
9126 | } |
9127 | ||
0a1b45a2 | 9128 | static bool |
35c08157 KLC |
9129 | insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t **blank_p, bfd_vma addr, |
9130 | bfd_vma len) | |
9131 | { | |
9132 | nds32_elf_blank_t *blank_t; | |
9133 | ||
9134 | if (!insert_nds32_elf_blank (blank_p, addr, len)) | |
0a1b45a2 | 9135 | return false; |
35c08157 KLC |
9136 | |
9137 | blank_t = *blank_p; | |
9138 | ||
9139 | if (!blank_t->prev) | |
9140 | { | |
9141 | blank_t->total_size = 0; | |
9142 | blank_t = blank_t->next; | |
9143 | } | |
9144 | ||
9145 | while (blank_t) | |
9146 | { | |
9147 | blank_t->total_size = blank_t->prev->total_size + blank_t->prev->size; | |
9148 | blank_t = blank_t->next; | |
9149 | } | |
9150 | ||
0a1b45a2 | 9151 | return true; |
35c08157 KLC |
9152 | } |
9153 | ||
9154 | static void | |
9155 | calc_nds32_blank_total (nds32_elf_blank_t *blank_p) | |
9156 | { | |
9157 | nds32_elf_blank_t *blank_t; | |
9158 | bfd_vma total_size = 0; | |
9159 | ||
9160 | if (!blank_p) | |
9161 | return; | |
9162 | ||
9163 | blank_t = blank_p; | |
9164 | while (blank_t->prev) | |
9165 | blank_t = blank_t->prev; | |
9166 | while (blank_t) | |
9167 | { | |
9168 | blank_t->total_size = total_size; | |
9169 | total_size += blank_t->size; | |
9170 | blank_t = blank_t->next; | |
9171 | } | |
9172 | } | |
9173 | ||
0a1b45a2 | 9174 | static bool |
35c08157 KLC |
9175 | nds32_elf_relax_delete_blanks (bfd *abfd, asection *sec, |
9176 | nds32_elf_blank_t *blank_p) | |
9177 | { | |
9178 | Elf_Internal_Shdr *symtab_hdr; /* Symbol table header of this bfd. */ | |
1c8f6a4d | 9179 | Elf_Internal_Sym *isym = NULL; /* Symbol table of this bfd. */ |
35c08157 KLC |
9180 | Elf_Internal_Sym *isymend; /* Symbol entry iterator. */ |
9181 | unsigned int sec_shndx; /* The section the be relaxed. */ | |
9182 | bfd_byte *contents; /* Contents data of iterating section. */ | |
9183 | Elf_Internal_Rela *internal_relocs; | |
9184 | Elf_Internal_Rela *irel; | |
9185 | Elf_Internal_Rela *irelend; | |
9186 | struct elf_link_hash_entry **sym_hashes; | |
9187 | struct elf_link_hash_entry **end_hashes; | |
9188 | unsigned int symcount; | |
9189 | asection *sect; | |
9190 | nds32_elf_blank_t *blank_t; | |
9191 | nds32_elf_blank_t *blank_t2; | |
9192 | nds32_elf_blank_t *blank_head; | |
9193 | ||
9194 | blank_head = blank_t = blank_p; | |
9195 | while (blank_head->prev != NULL) | |
9196 | blank_head = blank_head->prev; | |
9197 | while (blank_t->next != NULL) | |
9198 | blank_t = blank_t->next; | |
9199 | ||
9200 | if (blank_t->offset + blank_t->size <= sec->size) | |
9201 | { | |
9202 | blank_t->next = create_nds32_elf_blank (sec->size + 4, 0); | |
9203 | blank_t->next->prev = blank_t; | |
9204 | } | |
9205 | if (blank_head->offset > 0) | |
9206 | { | |
9207 | blank_head->prev = create_nds32_elf_blank (0, 0); | |
9208 | blank_head->prev->next = blank_head; | |
9209 | blank_head = blank_head->prev; | |
9210 | } | |
9211 | ||
9212 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
9213 | ||
9214 | /* The deletion must stop at the next ALIGN reloc for an alignment | |
9215 | power larger than the number of bytes we are deleting. */ | |
9216 | ||
9217 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
9218 | if (!nds32_get_local_syms (abfd, sec, &isym)) | |
0a1b45a2 | 9219 | return false; |
35c08157 KLC |
9220 | |
9221 | if (isym == NULL) | |
9222 | { | |
9223 | isym = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
9224 | symtab_hdr->sh_info, 0, NULL, NULL, NULL); | |
9225 | symtab_hdr->contents = (bfd_byte *) isym; | |
9226 | } | |
9227 | ||
9228 | if (isym == NULL || symtab_hdr->sh_info == 0) | |
0a1b45a2 | 9229 | return false; |
35c08157 KLC |
9230 | |
9231 | blank_t = blank_head; | |
9232 | calc_nds32_blank_total (blank_head); | |
9233 | ||
9234 | for (sect = abfd->sections; sect != NULL; sect = sect->next) | |
9235 | { | |
9236 | /* Adjust all the relocs. */ | |
9237 | ||
9238 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
9239 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sect, NULL, NULL, | |
0a1b45a2 | 9240 | true /* keep_memory */); |
35c08157 KLC |
9241 | irelend = internal_relocs + sect->reloc_count; |
9242 | ||
9243 | blank_t = blank_head; | |
9244 | blank_t2 = blank_head; | |
9245 | ||
9246 | if (!(sect->flags & SEC_RELOC)) | |
9247 | continue; | |
9248 | ||
1781a9d0 | 9249 | contents = NULL; |
0a1b45a2 | 9250 | nds32_get_section_contents (abfd, sect, &contents, true); |
35c08157 KLC |
9251 | |
9252 | for (irel = internal_relocs; irel < irelend; irel++) | |
9253 | { | |
9254 | bfd_vma raddr; | |
9255 | ||
9256 | if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_DIFF8 | |
9257 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_DIFF32 | |
9258 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx) | |
9259 | { | |
9260 | unsigned long val = 0; | |
1c8f6a4d KLC |
9261 | unsigned long mask; |
9262 | long before, between; | |
6cae483a | 9263 | long offset = 0; |
35c08157 KLC |
9264 | |
9265 | switch (ELF32_R_TYPE (irel->r_info)) | |
9266 | { | |
9267 | case R_NDS32_DIFF8: | |
1c8f6a4d | 9268 | offset = bfd_get_8 (abfd, contents + irel->r_offset); |
35c08157 KLC |
9269 | break; |
9270 | case R_NDS32_DIFF16: | |
1c8f6a4d | 9271 | offset = bfd_get_16 (abfd, contents + irel->r_offset); |
35c08157 KLC |
9272 | break; |
9273 | case R_NDS32_DIFF32: | |
9274 | val = bfd_get_32 (abfd, contents + irel->r_offset); | |
1c8f6a4d KLC |
9275 | /* Get the signed bit and mask for the high part. The |
9276 | gcc will alarm when right shift 32-bit since the | |
9277 | type size of long may be 32-bit. */ | |
9278 | mask = 0 - (val >> 31); | |
9279 | if (mask) | |
9280 | offset = (val | (mask - 0xffffffff)); | |
9281 | else | |
9282 | offset = val; | |
35c08157 KLC |
9283 | break; |
9284 | default: | |
9285 | BFD_ASSERT (0); | |
9286 | } | |
9287 | ||
9288 | /* DIFF value | |
9289 | 0 |encoded in location| | |
9290 | |------------|-------------------|--------- | |
9291 | sym+off(addend) | |
9292 | -- before ---| ***************** | |
9293 | --------------------- between ---| | |
9294 | ||
1c8f6a4d KLC |
9295 | We only care how much data are relax between DIFF, |
9296 | marked as ***. */ | |
35c08157 KLC |
9297 | |
9298 | before = get_nds32_elf_blank_total (&blank_t, irel->r_addend, 0); | |
1c8f6a4d KLC |
9299 | between = get_nds32_elf_blank_total (&blank_t, |
9300 | irel->r_addend + offset, 0); | |
35c08157 KLC |
9301 | if (between == before) |
9302 | goto done_adjust_diff; | |
9303 | ||
9304 | switch (ELF32_R_TYPE (irel->r_info)) | |
9305 | { | |
9306 | case R_NDS32_DIFF8: | |
1c8f6a4d KLC |
9307 | bfd_put_8 (abfd, offset - (between - before), |
9308 | contents + irel->r_offset); | |
35c08157 KLC |
9309 | break; |
9310 | case R_NDS32_DIFF16: | |
1c8f6a4d KLC |
9311 | bfd_put_16 (abfd, offset - (between - before), |
9312 | contents + irel->r_offset); | |
35c08157 KLC |
9313 | break; |
9314 | case R_NDS32_DIFF32: | |
1c8f6a4d KLC |
9315 | bfd_put_32 (abfd, offset - (between - before), |
9316 | contents + irel->r_offset); | |
35c08157 KLC |
9317 | break; |
9318 | } | |
9319 | } | |
9320 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_DIFF_ULEB128 | |
9321 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx) | |
9322 | { | |
9323 | bfd_vma val = 0; | |
9324 | unsigned int len = 0; | |
9325 | unsigned long before, between; | |
9326 | bfd_byte *endp, *p; | |
9327 | ||
4265548c PA |
9328 | val = _bfd_read_unsigned_leb128 (abfd, contents + irel->r_offset, |
9329 | &len); | |
35c08157 KLC |
9330 | |
9331 | before = get_nds32_elf_blank_total (&blank_t, irel->r_addend, 0); | |
1c8f6a4d KLC |
9332 | between = get_nds32_elf_blank_total (&blank_t, |
9333 | irel->r_addend + val, 0); | |
35c08157 KLC |
9334 | if (between == before) |
9335 | goto done_adjust_diff; | |
9336 | ||
9337 | p = contents + irel->r_offset; | |
9338 | endp = p + len -1; | |
9339 | memset (p, 0x80, len); | |
9340 | *(endp) = 0; | |
9341 | p = write_uleb128 (p, val - (between - before)) - 1; | |
9342 | if (p < endp) | |
9343 | *p |= 0x80; | |
9344 | } | |
dc1e8a47 | 9345 | done_adjust_diff: |
35c08157 KLC |
9346 | |
9347 | if (sec == sect) | |
9348 | { | |
9349 | raddr = irel->r_offset; | |
1c8f6a4d KLC |
9350 | irel->r_offset -= get_nds32_elf_blank_total (&blank_t2, |
9351 | irel->r_offset, 1); | |
35c08157 KLC |
9352 | |
9353 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE) | |
9354 | continue; | |
9355 | if (blank_t2 && blank_t2->next | |
1c8f6a4d KLC |
9356 | && (blank_t2->offset > raddr |
9357 | || blank_t2->next->offset <= raddr)) | |
4eca0228 | 9358 | _bfd_error_handler |
38f14ab8 AM |
9359 | (_("%pB: error: search_nds32_elf_blank reports wrong node"), |
9360 | abfd); | |
35c08157 KLC |
9361 | |
9362 | /* Mark reloc in deleted portion as NONE. | |
9363 | For some relocs like R_NDS32_LABEL that doesn't modify the | |
9364 | content in the section. R_NDS32_LABEL doesn't belong to the | |
9365 | instruction in the section, so we should preserve it. */ | |
9366 | if (raddr >= blank_t2->offset | |
9367 | && raddr < blank_t2->offset + blank_t2->size | |
9368 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_LABEL | |
9369 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_BEGIN | |
9370 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_END | |
9371 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_ENTRY | |
9372 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_SUBTRAHEND | |
9373 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_MINUEND) | |
9374 | { | |
9375 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
9376 | R_NDS32_NONE); | |
9377 | continue; | |
9378 | } | |
9379 | } | |
9380 | ||
9381 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE | |
9382 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
9383 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY) | |
9384 | continue; | |
9385 | ||
9386 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info | |
9387 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx | |
9388 | && ELF_ST_TYPE (isym[ELF32_R_SYM (irel->r_info)].st_info) == STT_SECTION) | |
9389 | { | |
9390 | if (irel->r_addend <= sec->size) | |
9391 | irel->r_addend -= | |
9392 | get_nds32_elf_blank_total (&blank_t, irel->r_addend, 1); | |
9393 | } | |
9394 | } | |
9395 | } | |
9396 | ||
9397 | /* Adjust the local symbols defined in this section. */ | |
9398 | blank_t = blank_head; | |
9399 | for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++) | |
9400 | { | |
9401 | if (isym->st_shndx == sec_shndx) | |
9402 | { | |
9403 | if (isym->st_value <= sec->size) | |
9404 | { | |
9405 | bfd_vma ahead; | |
9406 | bfd_vma orig_addr = isym->st_value; | |
9407 | ||
9408 | ahead = get_nds32_elf_blank_total (&blank_t, isym->st_value, 1); | |
9409 | isym->st_value -= ahead; | |
9410 | ||
9411 | /* Adjust function size. */ | |
1c8f6a4d KLC |
9412 | if (ELF32_ST_TYPE (isym->st_info) == STT_FUNC |
9413 | && isym->st_size > 0) | |
9414 | isym->st_size -= | |
9415 | get_nds32_elf_blank_total | |
9416 | (&blank_t, orig_addr + isym->st_size, 0) - ahead; | |
35c08157 KLC |
9417 | } |
9418 | } | |
9419 | } | |
9420 | ||
9421 | /* Now adjust the global symbols defined in this section. */ | |
9422 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
9423 | - symtab_hdr->sh_info); | |
9424 | sym_hashes = elf_sym_hashes (abfd); | |
9425 | end_hashes = sym_hashes + symcount; | |
9426 | blank_t = blank_head; | |
9427 | for (; sym_hashes < end_hashes; sym_hashes++) | |
9428 | { | |
9429 | struct elf_link_hash_entry *sym_hash = *sym_hashes; | |
9430 | ||
9431 | if ((sym_hash->root.type == bfd_link_hash_defined | |
9432 | || sym_hash->root.type == bfd_link_hash_defweak) | |
9433 | && sym_hash->root.u.def.section == sec) | |
9434 | { | |
9435 | if (sym_hash->root.u.def.value <= sec->size) | |
9436 | { | |
9437 | bfd_vma ahead; | |
9438 | bfd_vma orig_addr = sym_hash->root.u.def.value; | |
9439 | ||
9440 | ahead = get_nds32_elf_blank_total (&blank_t, sym_hash->root.u.def.value, 1); | |
9441 | sym_hash->root.u.def.value -= ahead; | |
9442 | ||
9443 | /* Adjust function size. */ | |
9444 | if (sym_hash->type == STT_FUNC) | |
1c8f6a4d KLC |
9445 | sym_hash->size -= |
9446 | get_nds32_elf_blank_total | |
9447 | (&blank_t, orig_addr + sym_hash->size, 0) - ahead; | |
35c08157 KLC |
9448 | |
9449 | } | |
9450 | } | |
9451 | } | |
9452 | ||
9453 | contents = elf_section_data (sec)->this_hdr.contents; | |
9454 | blank_t = blank_head; | |
9455 | while (blank_t->next) | |
9456 | { | |
9457 | /* Actually delete the bytes. */ | |
9458 | ||
9459 | /* If current blank is the last blank overlap with current section, | |
9460 | go to finish process. */ | |
9461 | if (sec->size <= (blank_t->next->offset)) | |
9462 | break; | |
9463 | ||
9464 | memmove (contents + blank_t->offset - blank_t->total_size, | |
9465 | contents + blank_t->offset + blank_t->size, | |
9466 | blank_t->next->offset - (blank_t->offset + blank_t->size)); | |
9467 | ||
9468 | blank_t = blank_t->next; | |
9469 | } | |
9470 | ||
9471 | if (sec->size > (blank_t->offset + blank_t->size)) | |
9472 | { | |
9473 | /* There are remaining code between blank and section boundary. | |
9474 | Move the remaining code to appropriate location. */ | |
9475 | memmove (contents + blank_t->offset - blank_t->total_size, | |
9476 | contents + blank_t->offset + blank_t->size, | |
9477 | sec->size - (blank_t->offset + blank_t->size)); | |
9478 | sec->size -= blank_t->total_size + blank_t->size; | |
9479 | } | |
9480 | else | |
9481 | /* This blank is not entirely included in the section, | |
9482 | reduce the section size by only part of the blank size. */ | |
9483 | sec->size -= blank_t->total_size + (sec->size - blank_t->offset); | |
9484 | ||
9485 | while (blank_head) | |
9486 | { | |
9487 | blank_t = blank_head; | |
9488 | blank_head = blank_head->next; | |
9489 | remove_nds32_elf_blank (blank_t); | |
9490 | } | |
9491 | ||
0a1b45a2 | 9492 | return true; |
35c08157 KLC |
9493 | } |
9494 | ||
9495 | /* Get the contents of a section. */ | |
9496 | ||
9497 | static int | |
0c4bd9d9 | 9498 | nds32_get_section_contents (bfd *abfd, asection *sec, |
0a1b45a2 | 9499 | bfd_byte **contents_p, bool cache) |
35c08157 KLC |
9500 | { |
9501 | /* Get the section contents. */ | |
9502 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
9503 | *contents_p = elf_section_data (sec)->this_hdr.contents; | |
9504 | else | |
9505 | { | |
1781a9d0 | 9506 | if (!bfd_get_full_section_contents (abfd, sec, contents_p)) |
0a1b45a2 | 9507 | return false; |
0c4bd9d9 KLC |
9508 | if (cache) |
9509 | elf_section_data (sec)->this_hdr.contents = *contents_p; | |
35c08157 KLC |
9510 | } |
9511 | ||
0a1b45a2 | 9512 | return true; |
35c08157 KLC |
9513 | } |
9514 | ||
9515 | /* Get the contents of the internal symbol of abfd. */ | |
9516 | ||
9517 | static int | |
9518 | nds32_get_local_syms (bfd *abfd, asection *sec ATTRIBUTE_UNUSED, | |
9519 | Elf_Internal_Sym **isymbuf_p) | |
9520 | { | |
9521 | Elf_Internal_Shdr *symtab_hdr; | |
9522 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
9523 | ||
9524 | /* Read this BFD's local symbols if we haven't done so already. */ | |
9525 | if (*isymbuf_p == NULL && symtab_hdr->sh_info != 0) | |
9526 | { | |
9527 | *isymbuf_p = (Elf_Internal_Sym *) symtab_hdr->contents; | |
9528 | if (*isymbuf_p == NULL) | |
9529 | { | |
9530 | *isymbuf_p = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
9531 | symtab_hdr->sh_info, 0, | |
9532 | NULL, NULL, NULL); | |
9533 | if (*isymbuf_p == NULL) | |
0a1b45a2 | 9534 | return false; |
35c08157 KLC |
9535 | } |
9536 | } | |
9537 | symtab_hdr->contents = (bfd_byte *) (*isymbuf_p); | |
9538 | ||
0a1b45a2 | 9539 | return true; |
35c08157 KLC |
9540 | } |
9541 | ||
9542 | /* Range of small data. */ | |
1c8f6a4d KLC |
9543 | static bfd_vma sdata_range[2][2]; |
9544 | static bfd_vma const sdata_init_range[2] = | |
9545 | { ACCURATE_12BIT_S1, ACCURATE_19BIT }; | |
35c08157 KLC |
9546 | |
9547 | static int | |
9548 | nds32_elf_insn_size (bfd *abfd ATTRIBUTE_UNUSED, | |
9549 | bfd_byte *contents, bfd_vma addr) | |
9550 | { | |
9551 | unsigned long insn = bfd_getb32 (contents + addr); | |
9552 | ||
9553 | if (insn & 0x80000000) | |
9554 | return 2; | |
9555 | ||
9556 | return 4; | |
9557 | } | |
9558 | ||
9559 | /* Set the gp relax range. We have to measure the safe range | |
9560 | to do gp relaxation. */ | |
9561 | ||
9562 | static void | |
c410035d | 9563 | relax_range_measurement (bfd *abfd, struct bfd_link_info *link_info) |
35c08157 KLC |
9564 | { |
9565 | asection *sec_f, *sec_b; | |
9566 | /* For upper bound. */ | |
c410035d | 9567 | bfd_vma maxpgsz; |
35c08157 | 9568 | bfd_vma align; |
35c08157 KLC |
9569 | static int decide_relax_range = 0; |
9570 | int i; | |
fbaf61ad | 9571 | int range_number = ARRAY_SIZE (sdata_init_range); |
35c08157 KLC |
9572 | |
9573 | if (decide_relax_range) | |
9574 | return; | |
9575 | decide_relax_range = 1; | |
9576 | ||
9577 | if (sda_rela_sec == NULL) | |
9578 | { | |
9579 | /* Since there is no data sections, we assume the range is page size. */ | |
1c8f6a4d | 9580 | for (i = 0; i < range_number; i++) |
35c08157 KLC |
9581 | { |
9582 | sdata_range[i][0] = sdata_init_range[i] - 0x1000; | |
9583 | sdata_range[i][1] = sdata_init_range[i] - 0x1000; | |
9584 | } | |
9585 | return; | |
9586 | } | |
9587 | ||
9588 | /* Get the biggest alignment power after the gp located section. */ | |
9589 | sec_f = sda_rela_sec->output_section; | |
9590 | sec_b = sec_f->next; | |
9591 | align = 0; | |
9592 | while (sec_b != NULL) | |
9593 | { | |
9594 | if ((unsigned)(1 << sec_b->alignment_power) > align) | |
9595 | align = (1 << sec_b->alignment_power); | |
9596 | sec_b = sec_b->next; | |
9597 | } | |
9598 | ||
c410035d AM |
9599 | if (link_info != NULL) |
9600 | maxpgsz = link_info->maxpagesize; | |
9601 | else | |
9602 | maxpgsz = get_elf_backend_data (abfd)->maxpagesize; | |
35c08157 KLC |
9603 | /* I guess we can not determine the section before |
9604 | gp located section, so we assume the align is max page size. */ | |
1c8f6a4d | 9605 | for (i = 0; i < range_number; i++) |
35c08157 | 9606 | { |
1c8f6a4d | 9607 | sdata_range[i][1] = sdata_init_range[i] - align; |
35c08157 | 9608 | BFD_ASSERT (sdata_range[i][1] <= sdata_init_range[i]); |
1c8f6a4d | 9609 | sdata_range[i][0] = sdata_init_range[i] - maxpgsz; |
35c08157 KLC |
9610 | BFD_ASSERT (sdata_range[i][0] <= sdata_init_range[i]); |
9611 | } | |
9612 | } | |
9613 | ||
9614 | /* These are macros used to check flags encoded in r_addend. | |
9615 | They are only used by nds32_elf_relax_section (). */ | |
9616 | #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff) | |
9617 | #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000) | |
9618 | #define IS_OPTIMIZE(addend) ((addend) & 0x40000000) | |
9619 | #define IS_16BIT_ON(addend) ((addend) & 0x20000000) | |
9620 | ||
695344c0 NC |
9621 | static const char * unrecognized_reloc_msg = |
9622 | /* xgettext:c-format */ | |
2dcf00ce | 9623 | N_("%pB: warning: %s points to unrecognized reloc at %#" PRIx64); |
695344c0 | 9624 | |
1c8f6a4d KLC |
9625 | /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */ |
9626 | ||
0a1b45a2 | 9627 | static bool |
1c8f6a4d KLC |
9628 | nds32_elf_relax_longcall1 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
9629 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
9630 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
9631 | Elf_Internal_Shdr *symtab_hdr) | |
9632 | { | |
9633 | /* There are 3 variations for LONGCALL1 | |
9634 | case 4-4-2; 16-bit on, optimize off or optimize for space | |
07d6d2b8 | 9635 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 |
1c8f6a4d | 9636 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9637 | jral5 ta ; |
1c8f6a4d KLC |
9638 | |
9639 | case 4-4-4; 16-bit off, optimize don't care | |
07d6d2b8 | 9640 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 |
1c8f6a4d | 9641 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9642 | jral ta ; |
1c8f6a4d KLC |
9643 | |
9644 | case 4-4-4; 16-bit on, optimize for speed | |
07d6d2b8 | 9645 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 |
1c8f6a4d | 9646 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9647 | jral ta ; |
1c8f6a4d KLC |
9648 | Check code for -mlong-calls output. */ |
9649 | ||
9650 | /* Get the reloc for the address from which the register is | |
9651 | being loaded. This reloc will tell us which function is | |
9652 | actually being called. */ | |
9653 | ||
9654 | bfd_vma laddr; | |
9655 | int seq_len; /* Original length of instruction sequence. */ | |
35c08157 | 9656 | uint32_t insn; |
1c8f6a4d | 9657 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *irelend; |
1c8f6a4d | 9658 | bfd_signed_vma foff; |
35c08157 | 9659 | uint16_t insn16; |
35c08157 | 9660 | |
1c8f6a4d KLC |
9661 | irelend = internal_relocs + sec->reloc_count; |
9662 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
9663 | laddr = irel->r_offset; | |
9664 | *insn_len = seq_len; | |
35c08157 | 9665 | |
1c8f6a4d KLC |
9666 | hi_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
9667 | R_NDS32_HI20_RELA, laddr); | |
9668 | lo_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9669 | R_NDS32_LO12S0_ORI_RELA, | |
9670 | laddr + 4); | |
35c08157 | 9671 | |
1c8f6a4d | 9672 | if (hi_irelfn == irelend || lo_irelfn == irelend) |
35c08157 | 9673 | { |
695344c0 | 9674 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL1", |
2dcf00ce | 9675 | (uint64_t) irel->r_offset); |
0a1b45a2 | 9676 | return false; |
35c08157 KLC |
9677 | } |
9678 | ||
1c8f6a4d | 9679 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 9680 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 9681 | |
1c8f6a4d | 9682 | /* This condition only happened when symbol is undefined. */ |
fbaf61ad NC |
9683 | if (foff == 0 |
9684 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d | 9685 | || foff >= CONSERVATIVE_24BIT_S1) |
0a1b45a2 | 9686 | return false; |
35c08157 | 9687 | |
fbaf61ad | 9688 | /* Relax to: jal symbol; 25_PCREL. */ |
1c8f6a4d KLC |
9689 | /* For simplicity of coding, we are going to modify the section |
9690 | contents, the section relocs, and the BFD symbol table. We | |
9691 | must tell the rest of the code not to free up this | |
9692 | information. It would be possible to instead create a table | |
9693 | of changes which have to be made, as is done in coff-mips.c; | |
9694 | that would be more work, but would require less memory when | |
9695 | the linker is run. */ | |
9696 | ||
9697 | /* Replace the long call with a jal. */ | |
9698 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
9699 | R_NDS32_25_PCREL_RELA); | |
9700 | irel->r_addend = hi_irelfn->r_addend; | |
9701 | ||
9702 | /* We don't resolve this here but resolve it in relocate_section. */ | |
9703 | insn = INSN_JAL; | |
9704 | bfd_putb32 (insn, contents + irel->r_offset); | |
9705 | ||
9706 | hi_irelfn->r_info = | |
9707 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
9708 | lo_irelfn->r_info = | |
9709 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
9710 | *insn_len = 4; | |
9711 | ||
9712 | if (seq_len & 0x2) | |
9713 | { | |
9714 | insn16 = NDS32_NOP16; | |
9715 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
9716 | lo_irelfn->r_info = | |
9717 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_INSN16); | |
9718 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
9719 | *insn_len += 2; | |
9720 | } | |
0a1b45a2 | 9721 | return true; |
1c8f6a4d | 9722 | } |
35c08157 | 9723 | |
1c8f6a4d KLC |
9724 | #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000) |
9725 | /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */ | |
35c08157 | 9726 | |
0a1b45a2 | 9727 | static bool |
1c8f6a4d KLC |
9728 | nds32_elf_relax_longcall2 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
9729 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
9730 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
9731 | Elf_Internal_Shdr *symtab_hdr) | |
9732 | { | |
9733 | /* bltz rt, .L1 ; LONGCALL2 | |
9734 | jal symbol ; 25_PCREL | |
9735 | .L1: */ | |
35c08157 | 9736 | |
1c8f6a4d KLC |
9737 | /* Get the reloc for the address from which the register is |
9738 | being loaded. This reloc will tell us which function is | |
9739 | actually being called. */ | |
35c08157 | 9740 | |
1c8f6a4d KLC |
9741 | bfd_vma laddr; |
9742 | uint32_t insn; | |
9743 | Elf_Internal_Rela *i1_irelfn, *cond_irelfn, *irelend; | |
1c8f6a4d | 9744 | bfd_signed_vma foff; |
35c08157 | 9745 | |
1c8f6a4d KLC |
9746 | irelend = internal_relocs + sec->reloc_count; |
9747 | laddr = irel->r_offset; | |
9748 | i1_irelfn = | |
9749 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9750 | R_NDS32_25_PCREL_RELA, laddr + 4); | |
9751 | ||
9752 | if (i1_irelfn == irelend) | |
35c08157 | 9753 | { |
695344c0 | 9754 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL2", |
2dcf00ce | 9755 | (uint64_t) irel->r_offset); |
0a1b45a2 | 9756 | return false; |
35c08157 KLC |
9757 | } |
9758 | ||
1c8f6a4d | 9759 | insn = bfd_getb32 (contents + laddr); |
35c08157 | 9760 | |
1c8f6a4d | 9761 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 9762 | foff = calculate_offset (abfd, sec, i1_irelfn, isymbuf, symtab_hdr); |
35c08157 | 9763 | |
fbaf61ad NC |
9764 | if (foff == 0 |
9765 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d | 9766 | || foff >= CONSERVATIVE_16BIT_S1) |
0a1b45a2 | 9767 | return false; |
35c08157 | 9768 | |
1c8f6a4d KLC |
9769 | /* Relax to bgezal rt, label ; 17_PCREL |
9770 | or bltzal rt, label ; 17_PCREL */ | |
9771 | ||
9772 | /* Convert to complimentary conditional call. */ | |
9773 | insn = CONVERT_CONDITION_CALL (insn); | |
9774 | ||
9775 | /* For simplicity of coding, we are going to modify the section | |
9776 | contents, the section relocs, and the BFD symbol table. We | |
9777 | must tell the rest of the code not to free up this | |
9778 | information. It would be possible to instead create a table | |
9779 | of changes which have to be made, as is done in coff-mips.c; | |
9780 | that would be more work, but would require less memory when | |
9781 | the linker is run. */ | |
9782 | ||
9783 | /* Clean unnessary relocations. */ | |
9784 | i1_irelfn->r_info = | |
9785 | ELF32_R_INFO (ELF32_R_SYM (i1_irelfn->r_info), R_NDS32_NONE); | |
9786 | cond_irelfn = | |
9787 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9788 | R_NDS32_17_PCREL_RELA, laddr); | |
9789 | if (cond_irelfn != irelend) | |
9790 | cond_irelfn->r_info = | |
9791 | ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), R_NDS32_NONE); | |
9792 | ||
9793 | /* Replace the long call with a bgezal. */ | |
9794 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (i1_irelfn->r_info), | |
9795 | R_NDS32_17_PCREL_RELA); | |
9796 | irel->r_addend = i1_irelfn->r_addend; | |
9797 | ||
9798 | bfd_putb32 (insn, contents + irel->r_offset); | |
9799 | ||
9800 | *insn_len = 4; | |
0a1b45a2 | 9801 | return true; |
1c8f6a4d | 9802 | } |
35c08157 | 9803 | |
1c8f6a4d KLC |
9804 | /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */ |
9805 | ||
0a1b45a2 | 9806 | static bool |
1c8f6a4d KLC |
9807 | nds32_elf_relax_longcall3 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
9808 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
9809 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
9810 | Elf_Internal_Shdr *symtab_hdr) | |
9811 | { | |
9812 | /* There are 3 variations for LONGCALL3 | |
9813 | case 4-4-4-2; 16-bit on, optimize off or optimize for space | |
07d6d2b8 AM |
9814 | bltz rt, $1 ; LONGCALL3 |
9815 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 9816 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9817 | jral5 ta ; |
1c8f6a4d KLC |
9818 | $1 |
9819 | ||
9820 | case 4-4-4-4; 16-bit off, optimize don't care | |
07d6d2b8 AM |
9821 | bltz rt, $1 ; LONGCALL3 |
9822 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 9823 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9824 | jral ta ; |
1c8f6a4d KLC |
9825 | $1 |
9826 | ||
9827 | case 4-4-4-4; 16-bit on, optimize for speed | |
07d6d2b8 AM |
9828 | bltz rt, $1 ; LONGCALL3 |
9829 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 9830 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9831 | jral ta ; |
1c8f6a4d KLC |
9832 | $1 */ |
9833 | ||
9834 | /* Get the reloc for the address from which the register is | |
9835 | being loaded. This reloc will tell us which function is | |
9836 | actually being called. */ | |
9837 | ||
9838 | bfd_vma laddr; | |
9839 | int seq_len; /* Original length of instruction sequence. */ | |
9840 | uint32_t insn; | |
9841 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *cond_irelfn, *irelend; | |
1c8f6a4d KLC |
9842 | bfd_signed_vma foff; |
9843 | uint16_t insn16; | |
9844 | ||
9845 | irelend = internal_relocs + sec->reloc_count; | |
9846 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
9847 | laddr = irel->r_offset; | |
9848 | *insn_len = seq_len; | |
9849 | ||
9850 | hi_irelfn = | |
9851 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9852 | R_NDS32_HI20_RELA, laddr + 4); | |
9853 | lo_irelfn = | |
9854 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9855 | R_NDS32_LO12S0_ORI_RELA, laddr + 8); | |
9856 | ||
9857 | if (hi_irelfn == irelend || lo_irelfn == irelend) | |
9858 | { | |
695344c0 | 9859 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL3", |
2dcf00ce | 9860 | (uint64_t) irel->r_offset); |
0a1b45a2 | 9861 | return false; |
35c08157 KLC |
9862 | } |
9863 | ||
1c8f6a4d | 9864 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 9865 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 9866 | |
fbaf61ad NC |
9867 | if (foff == 0 |
9868 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d | 9869 | || foff >= CONSERVATIVE_24BIT_S1) |
0a1b45a2 | 9870 | return false; |
35c08157 | 9871 | |
1c8f6a4d KLC |
9872 | insn = bfd_getb32 (contents + laddr); |
9873 | if (foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
35c08157 | 9874 | { |
1c8f6a4d KLC |
9875 | /* Relax to bgezal rt, label ; 17_PCREL |
9876 | or bltzal rt, label ; 17_PCREL */ | |
35c08157 | 9877 | |
1c8f6a4d KLC |
9878 | /* Convert to complimentary conditional call. */ |
9879 | insn = CONVERT_CONDITION_CALL (insn); | |
9880 | bfd_putb32 (insn, contents + irel->r_offset); | |
35c08157 | 9881 | |
1c8f6a4d KLC |
9882 | *insn_len = 4; |
9883 | irel->r_info = | |
9884 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
9885 | hi_irelfn->r_info = | |
9886 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
9887 | lo_irelfn->r_info = | |
9888 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
9889 | ||
9890 | cond_irelfn = | |
9891 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9892 | R_NDS32_17_PCREL_RELA, laddr); | |
9893 | if (cond_irelfn != irelend) | |
35c08157 | 9894 | { |
1c8f6a4d KLC |
9895 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), |
9896 | R_NDS32_17_PCREL_RELA); | |
9897 | cond_irelfn->r_addend = hi_irelfn->r_addend; | |
35c08157 | 9898 | } |
1c8f6a4d KLC |
9899 | |
9900 | if (seq_len & 0x2) | |
35c08157 | 9901 | { |
1c8f6a4d KLC |
9902 | insn16 = NDS32_NOP16; |
9903 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
9904 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
9905 | R_NDS32_INSN16); | |
9906 | hi_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
9907 | insn_len += 2; | |
35c08157 | 9908 | } |
1c8f6a4d KLC |
9909 | } |
9910 | else if (foff >= -CONSERVATIVE_24BIT_S1 && foff < CONSERVATIVE_24BIT_S1) | |
9911 | { | |
9912 | /* Relax to the following instruction sequence | |
9913 | bltz rt, $1 ; LONGCALL2 | |
9914 | jal symbol ; 25_PCREL | |
9915 | $1 */ | |
9916 | *insn_len = 8; | |
9917 | insn = INSN_JAL; | |
9918 | bfd_putb32 (insn, contents + hi_irelfn->r_offset); | |
35c08157 | 9919 | |
1c8f6a4d KLC |
9920 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), |
9921 | R_NDS32_25_PCREL_RELA); | |
9922 | irel->r_info = | |
9923 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_LONGCALL2); | |
9924 | ||
9925 | lo_irelfn->r_info = | |
9926 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
35c08157 | 9927 | |
1c8f6a4d | 9928 | if (seq_len & 0x2) |
35c08157 | 9929 | { |
1c8f6a4d KLC |
9930 | insn16 = NDS32_NOP16; |
9931 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
9932 | lo_irelfn->r_info = | |
9933 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_INSN16); | |
9934 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
9935 | insn_len += 2; | |
9936 | } | |
9937 | } | |
0a1b45a2 | 9938 | return true; |
1c8f6a4d | 9939 | } |
35c08157 | 9940 | |
1c8f6a4d | 9941 | /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */ |
35c08157 | 9942 | |
0a1b45a2 | 9943 | static bool |
1c8f6a4d KLC |
9944 | nds32_elf_relax_longjump1 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
9945 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
9946 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
9947 | Elf_Internal_Shdr *symtab_hdr) | |
9948 | { | |
9949 | /* There are 3 variations for LONGJUMP1 | |
9950 | case 4-4-2; 16-bit bit on, optimize off or optimize for space | |
07d6d2b8 AM |
9951 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 |
9952 | ori ta, ta, lo12(symbol) ; LO12S0 | |
9953 | jr5 ta ; | |
1c8f6a4d KLC |
9954 | |
9955 | case 4-4-4; 16-bit off, optimize don't care | |
07d6d2b8 AM |
9956 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 |
9957 | ori ta, ta, lo12(symbol) ; LO12S0 | |
9958 | jr ta ; | |
1c8f6a4d KLC |
9959 | |
9960 | case 4-4-4; 16-bit on, optimize for speed | |
07d6d2b8 AM |
9961 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 |
9962 | ori ta, ta, lo12(symbol) ; LO12S0 | |
9963 | jr ta ; */ | |
1c8f6a4d KLC |
9964 | |
9965 | /* Get the reloc for the address from which the register is | |
9966 | being loaded. This reloc will tell us which function is | |
9967 | actually being called. */ | |
9968 | ||
9969 | bfd_vma laddr; | |
9970 | int seq_len; /* Original length of instruction sequence. */ | |
9971 | int insn16_on; /* 16-bit on/off. */ | |
9972 | uint32_t insn; | |
9973 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *irelend; | |
1c8f6a4d KLC |
9974 | bfd_signed_vma foff; |
9975 | uint16_t insn16; | |
9976 | unsigned long reloc; | |
35c08157 | 9977 | |
1c8f6a4d KLC |
9978 | irelend = internal_relocs + sec->reloc_count; |
9979 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
9980 | laddr = irel->r_offset; | |
9981 | *insn_len = seq_len; | |
9982 | insn16_on = IS_16BIT_ON (irel->r_addend); | |
9983 | ||
9984 | hi_irelfn = | |
9985 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9986 | R_NDS32_HI20_RELA, laddr); | |
9987 | lo_irelfn = | |
9988 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9989 | R_NDS32_LO12S0_ORI_RELA, laddr + 4); | |
9990 | if (hi_irelfn == irelend || lo_irelfn == irelend) | |
9991 | { | |
695344c0 | 9992 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP1", |
2dcf00ce | 9993 | (uint64_t) irel->r_offset); |
0a1b45a2 | 9994 | return false; |
1c8f6a4d | 9995 | } |
35c08157 | 9996 | |
1c8f6a4d | 9997 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 9998 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 9999 | |
fbaf61ad NC |
10000 | if (foff == 0 |
10001 | || foff >= CONSERVATIVE_24BIT_S1 | |
1c8f6a4d | 10002 | || foff < -CONSERVATIVE_24BIT_S1) |
0a1b45a2 | 10003 | return false; |
35c08157 | 10004 | |
fbaf61ad NC |
10005 | if (insn16_on |
10006 | && foff >= -ACCURATE_8BIT_S1 | |
10007 | && foff < ACCURATE_8BIT_S1 | |
10008 | && (seq_len & 0x2)) | |
1c8f6a4d KLC |
10009 | { |
10010 | /* j8 label */ | |
10011 | /* 16-bit on, but not optimized for speed. */ | |
10012 | reloc = R_NDS32_9_PCREL_RELA; | |
10013 | insn16 = INSN_J8; | |
10014 | bfd_putb16 (insn16, contents + irel->r_offset); | |
10015 | *insn_len = 2; | |
10016 | irel->r_info = | |
10017 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
10018 | } | |
10019 | else | |
10020 | { | |
10021 | /* j label */ | |
10022 | reloc = R_NDS32_25_PCREL_RELA; | |
10023 | insn = INSN_J; | |
10024 | bfd_putb32 (insn, contents + irel->r_offset); | |
10025 | *insn_len = 4; | |
10026 | irel->r_info = | |
10027 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_INSN16); | |
10028 | irel->r_addend = 0; | |
10029 | } | |
35c08157 | 10030 | |
1c8f6a4d KLC |
10031 | hi_irelfn->r_info = |
10032 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), reloc); | |
10033 | lo_irelfn->r_info = | |
10034 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
35c08157 | 10035 | |
1c8f6a4d KLC |
10036 | if ((seq_len & 0x2) && ((*insn_len & 2) == 0)) |
10037 | { | |
10038 | insn16 = NDS32_NOP16; | |
10039 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
10040 | lo_irelfn->r_info = | |
10041 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
10042 | R_NDS32_INSN16); | |
10043 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
10044 | *insn_len += 2; | |
10045 | } | |
0a1b45a2 | 10046 | return true; |
1c8f6a4d KLC |
10047 | } |
10048 | ||
10049 | /* Revert condition branch. This function does not check if the input | |
10050 | instruction is condition branch or not. */ | |
10051 | ||
10052 | static void | |
10053 | nds32_elf_convert_branch (uint16_t insn16, uint32_t insn, | |
10054 | uint16_t *re_insn16, uint32_t *re_insn) | |
10055 | { | |
10056 | uint32_t comp_insn = 0; | |
10057 | uint16_t comp_insn16 = 0; | |
10058 | ||
10059 | if (insn) | |
10060 | { | |
10061 | if (N32_OP6 (insn) == N32_OP6_BR1) | |
10062 | { | |
10063 | /* beqs label. */ | |
10064 | comp_insn = (insn ^ 0x4000) & 0xffffc000; | |
10065 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5) | |
35c08157 | 10066 | { |
1c8f6a4d KLC |
10067 | /* Insn can be contracted to 16-bit implied r5. */ |
10068 | comp_insn16 = | |
10069 | (comp_insn & 0x4000) ? INSN_BNES38 : INSN_BEQS38; | |
10070 | comp_insn16 |= (N32_RT5 (insn) & 0x7) << 8; | |
35c08157 | 10071 | } |
1c8f6a4d KLC |
10072 | } |
10073 | else if (N32_OP6 (insn) == N32_OP6_BR3) | |
10074 | { | |
10075 | /* bnec $ta, imm11, label. */ | |
10076 | comp_insn = (insn ^ 0x80000) & 0xffffff00; | |
10077 | } | |
10078 | else | |
10079 | { | |
10080 | comp_insn = (insn ^ 0x10000) & 0xffffc000; | |
10081 | if (N32_BR2_SUB (insn) == N32_BR2_BEQZ | |
10082 | || N32_BR2_SUB (insn) == N32_BR2_BNEZ) | |
35c08157 | 10083 | { |
1c8f6a4d | 10084 | if (N32_IS_RT3 (insn)) |
35c08157 | 10085 | { |
1c8f6a4d KLC |
10086 | /* Insn can be contracted to 16-bit. */ |
10087 | comp_insn16 = | |
10088 | (comp_insn & 0x10000) ? INSN_BNEZ38 : INSN_BEQZ38; | |
10089 | comp_insn16 |= (N32_RT5 (insn) & 0x7) << 8; | |
10090 | } | |
10091 | else if (N32_RT5 (insn) == REG_R15) | |
10092 | { | |
10093 | /* Insn can be contracted to 16-bit. */ | |
10094 | comp_insn16 = | |
10095 | (comp_insn & 0x10000) ? INSN_BNES38 : INSN_BEQS38; | |
35c08157 | 10096 | } |
35c08157 KLC |
10097 | } |
10098 | } | |
1c8f6a4d KLC |
10099 | } |
10100 | else | |
10101 | { | |
10102 | switch ((insn16 & 0xf000) >> 12) | |
35c08157 | 10103 | { |
1c8f6a4d KLC |
10104 | case 0xc: |
10105 | /* beqz38 or bnez38 */ | |
10106 | comp_insn16 = (insn16 ^ 0x0800) & 0xff00; | |
10107 | comp_insn = (comp_insn16 & 0x0800) ? INSN_BNEZ : INSN_BEQZ; | |
10108 | comp_insn |= ((comp_insn16 & 0x0700) >> 8) << 20; | |
10109 | break; | |
35c08157 | 10110 | |
1c8f6a4d KLC |
10111 | case 0xd: |
10112 | /* beqs38 or bnes38 */ | |
10113 | comp_insn16 = (insn16 ^ 0x0800) & 0xff00; | |
10114 | comp_insn = (comp_insn16 & 0x0800) ? INSN_BNE : INSN_BEQ; | |
10115 | comp_insn |= (((comp_insn16 & 0x0700) >> 8) << 20) | |
10116 | | (REG_R5 << 15); | |
10117 | break; | |
35c08157 | 10118 | |
1c8f6a4d KLC |
10119 | case 0xe: |
10120 | /* beqzS8 or bnezS8 */ | |
10121 | comp_insn16 = (insn16 ^ 0x0100) & 0xff00; | |
10122 | comp_insn = (comp_insn16 & 0x0100) ? INSN_BNEZ : INSN_BEQZ; | |
10123 | comp_insn |= REG_R15 << 20; | |
10124 | break; | |
35c08157 | 10125 | |
1c8f6a4d KLC |
10126 | default: |
10127 | break; | |
10128 | } | |
10129 | } | |
10130 | if (comp_insn && re_insn) | |
10131 | *re_insn = comp_insn; | |
10132 | if (comp_insn16 && re_insn16) | |
10133 | *re_insn16 = comp_insn16; | |
10134 | } | |
35c08157 | 10135 | |
1c8f6a4d | 10136 | /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */ |
35c08157 | 10137 | |
0a1b45a2 | 10138 | static bool |
1c8f6a4d KLC |
10139 | nds32_elf_relax_longjump2 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
10140 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10141 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10142 | Elf_Internal_Shdr *symtab_hdr) | |
10143 | { | |
10144 | /* There are 3 variations for LONGJUMP2 | |
10145 | case 2-4; 1st insn convertible, 16-bit on, | |
10146 | optimize off or optimize for space | |
10147 | bnes38 rt, ra, $1 ; LONGJUMP2 | |
10148 | j label ; 25_PCREL | |
10149 | $1: | |
10150 | ||
10151 | case 4-4; 1st insn not convertible | |
10152 | bne rt, ra, $1 ; LONGJUMP2 | |
10153 | j label ; 25_PCREL | |
10154 | $1: | |
10155 | ||
10156 | case 4-4; 1st insn convertible, 16-bit on, optimize for speed | |
10157 | bne rt, ra, $1 ; LONGJUMP2 | |
10158 | j label ; 25_PCREL | |
10159 | $1: */ | |
10160 | ||
10161 | /* Get the reloc for the address from which the register is | |
10162 | being loaded. This reloc will tell us which function is | |
10163 | actually being called. */ | |
10164 | ||
10165 | bfd_vma laddr; | |
10166 | int seq_len; /* Original length of instruction sequence. */ | |
10167 | Elf_Internal_Rela *i2_irelfn, *cond_irelfn, *irelend; | |
fbaf61ad | 10168 | int first_size; |
1c8f6a4d KLC |
10169 | unsigned int i; |
10170 | bfd_signed_vma foff; | |
10171 | uint32_t insn, re_insn = 0; | |
10172 | uint16_t insn16, re_insn16 = 0; | |
10173 | unsigned long reloc, cond_reloc; | |
35c08157 | 10174 | |
1c8f6a4d KLC |
10175 | enum elf_nds32_reloc_type checked_types[] = |
10176 | { R_NDS32_15_PCREL_RELA, R_NDS32_9_PCREL_RELA }; | |
35c08157 | 10177 | |
1c8f6a4d KLC |
10178 | irelend = internal_relocs + sec->reloc_count; |
10179 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
10180 | laddr = irel->r_offset; | |
10181 | *insn_len = seq_len; | |
10182 | first_size = (seq_len == 6) ? 2 : 4; | |
10183 | ||
10184 | i2_irelfn = | |
10185 | find_relocs_at_address_addr (irel, internal_relocs, | |
10186 | irelend, R_NDS32_25_PCREL_RELA, | |
10187 | laddr + first_size); | |
10188 | ||
fbaf61ad | 10189 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
10190 | { |
10191 | cond_irelfn = | |
10192 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10193 | checked_types[i], laddr); | |
10194 | if (cond_irelfn != irelend) | |
10195 | break; | |
10196 | } | |
35c08157 | 10197 | |
1c8f6a4d KLC |
10198 | if (i2_irelfn == irelend || cond_irelfn == irelend) |
10199 | { | |
695344c0 | 10200 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP2", |
2dcf00ce | 10201 | (uint64_t) irel->r_offset); |
0a1b45a2 | 10202 | return false; |
1c8f6a4d | 10203 | } |
35c08157 | 10204 | |
1c8f6a4d | 10205 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad NC |
10206 | foff = calculate_offset (abfd, sec, i2_irelfn, isymbuf, symtab_hdr); |
10207 | if (foff == 0 | |
10208 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d | 10209 | || foff >= CONSERVATIVE_16BIT_S1) |
0a1b45a2 | 10210 | return false; |
35c08157 | 10211 | |
1c8f6a4d KLC |
10212 | /* Get the all corresponding instructions. */ |
10213 | if (first_size == 4) | |
10214 | { | |
10215 | insn = bfd_getb32 (contents + laddr); | |
10216 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
10217 | } | |
10218 | else | |
10219 | { | |
10220 | insn16 = bfd_getb16 (contents + laddr); | |
10221 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
10222 | } | |
35c08157 | 10223 | |
1c8f6a4d KLC |
10224 | if (re_insn16 && foff >= -(ACCURATE_8BIT_S1 - first_size) |
10225 | && foff < ACCURATE_8BIT_S1 - first_size) | |
10226 | { | |
10227 | if (first_size == 4) | |
10228 | { | |
10229 | /* Don't convert it to 16-bit now, keep this as relaxable for | |
10230 | ``label reloc; INSN16''. */ | |
35c08157 | 10231 | |
1c8f6a4d KLC |
10232 | /* Save comp_insn32 to buffer. */ |
10233 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10234 | *insn_len = 4; | |
10235 | reloc = (N32_OP6 (re_insn) == N32_OP6_BR1) ? | |
10236 | R_NDS32_15_PCREL_RELA : R_NDS32_17_PCREL_RELA; | |
10237 | cond_reloc = R_NDS32_INSN16; | |
10238 | } | |
10239 | else | |
10240 | { | |
10241 | bfd_putb16 (re_insn16, contents + irel->r_offset); | |
10242 | *insn_len = 2; | |
10243 | reloc = R_NDS32_9_PCREL_RELA; | |
10244 | cond_reloc = R_NDS32_NONE; | |
10245 | } | |
10246 | } | |
10247 | else if (N32_OP6 (re_insn) == N32_OP6_BR1 | |
10248 | && (foff >= -(ACCURATE_14BIT_S1 - first_size) | |
10249 | && foff < ACCURATE_14BIT_S1 - first_size)) | |
10250 | { | |
10251 | /* beqs label ; 15_PCREL */ | |
10252 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10253 | *insn_len = 4; | |
10254 | reloc = R_NDS32_15_PCREL_RELA; | |
10255 | cond_reloc = R_NDS32_NONE; | |
10256 | } | |
10257 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
10258 | && foff >= -CONSERVATIVE_16BIT_S1 | |
10259 | && foff < CONSERVATIVE_16BIT_S1) | |
10260 | { | |
10261 | /* beqz label ; 17_PCREL */ | |
10262 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10263 | *insn_len = 4; | |
10264 | reloc = R_NDS32_17_PCREL_RELA; | |
10265 | cond_reloc = R_NDS32_NONE; | |
10266 | } | |
10267 | else | |
0a1b45a2 | 10268 | return false; |
35c08157 | 10269 | |
1c8f6a4d KLC |
10270 | /* Set all relocations. */ |
10271 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), reloc); | |
10272 | irel->r_addend = i2_irelfn->r_addend; | |
35c08157 | 10273 | |
1c8f6a4d KLC |
10274 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), |
10275 | cond_reloc); | |
10276 | cond_irelfn->r_addend = 0; | |
35c08157 | 10277 | |
1c8f6a4d KLC |
10278 | if ((seq_len ^ *insn_len ) & 0x2) |
10279 | { | |
10280 | insn16 = NDS32_NOP16; | |
10281 | bfd_putb16 (insn16, contents + irel->r_offset + 4); | |
10282 | i2_irelfn->r_offset = 4; | |
10283 | i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), | |
10284 | R_NDS32_INSN16); | |
10285 | i2_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
10286 | *insn_len += 2; | |
10287 | } | |
10288 | else | |
10289 | i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), | |
10290 | R_NDS32_NONE); | |
0a1b45a2 | 10291 | return true; |
1c8f6a4d | 10292 | } |
35c08157 | 10293 | |
1c8f6a4d | 10294 | /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */ |
35c08157 | 10295 | |
0a1b45a2 | 10296 | static bool |
1c8f6a4d KLC |
10297 | nds32_elf_relax_longjump3 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
10298 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10299 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10300 | Elf_Internal_Shdr *symtab_hdr) | |
10301 | { | |
10302 | /* There are 5 variations for LONGJUMP3 | |
10303 | case 1: 2-4-4-2; 1st insn convertible, 16-bit on, | |
10304 | optimize off or optimize for space | |
07d6d2b8 AM |
10305 | bnes38 rt, ra, $1 ; LONGJUMP3 |
10306 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10307 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10308 | jr5 ta ; |
10309 | $1: ; | |
1c8f6a4d KLC |
10310 | |
10311 | case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed | |
07d6d2b8 AM |
10312 | bnes38 rt, ra, $1 ; LONGJUMP3 |
10313 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10314 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10315 | jr5 ta ; |
10316 | $1: ; LABEL | |
1c8f6a4d KLC |
10317 | |
10318 | case 3: 4-4-4-2; 1st insn not convertible, 16-bit on, | |
10319 | optimize off or optimize for space | |
07d6d2b8 AM |
10320 | bne rt, ra, $1 ; LONGJUMP3 |
10321 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10322 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10323 | jr5 ta ; |
10324 | $1: ; | |
1c8f6a4d KLC |
10325 | |
10326 | case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care | |
10327 | 16-bit off if no INSN16 | |
07d6d2b8 AM |
10328 | bne rt, ra, $1 ; LONGJUMP3 |
10329 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10330 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10331 | jr ta ; |
10332 | $1: ; | |
1c8f6a4d KLC |
10333 | |
10334 | case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed | |
10335 | 16-bit off if no INSN16 | |
07d6d2b8 AM |
10336 | bne rt, ra, $1 ; LONGJUMP3 |
10337 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10338 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10339 | jr ta ; |
10340 | $1: ; LABEL */ | |
1c8f6a4d KLC |
10341 | |
10342 | /* Get the reloc for the address from which the register is | |
10343 | being loaded. This reloc will tell us which function is | |
10344 | actually being called. */ | |
10345 | enum elf_nds32_reloc_type checked_types[] = | |
10346 | { R_NDS32_15_PCREL_RELA, R_NDS32_9_PCREL_RELA }; | |
10347 | ||
10348 | int reloc_off = 0, cond_removed = 0, convertible; | |
10349 | bfd_vma laddr; | |
10350 | int seq_len; /* Original length of instruction sequence. */ | |
10351 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *cond_irelfn, *irelend; | |
fbaf61ad | 10352 | int first_size; |
1c8f6a4d KLC |
10353 | unsigned int i; |
10354 | bfd_signed_vma foff; | |
10355 | uint32_t insn, re_insn = 0; | |
10356 | uint16_t insn16, re_insn16 = 0; | |
10357 | unsigned long reloc, cond_reloc; | |
35c08157 | 10358 | |
1c8f6a4d KLC |
10359 | irelend = internal_relocs + sec->reloc_count; |
10360 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
10361 | laddr = irel->r_offset; | |
10362 | *insn_len = seq_len; | |
35c08157 | 10363 | |
1c8f6a4d | 10364 | convertible = IS_1ST_CONVERT (irel->r_addend); |
35c08157 | 10365 | |
1c8f6a4d KLC |
10366 | if (convertible) |
10367 | first_size = 2; | |
10368 | else | |
10369 | first_size = 4; | |
10370 | ||
10371 | /* Get all needed relocations. */ | |
10372 | hi_irelfn = | |
10373 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10374 | R_NDS32_HI20_RELA, laddr + first_size); | |
10375 | lo_irelfn = | |
10376 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10377 | R_NDS32_LO12S0_ORI_RELA, | |
10378 | laddr + first_size + 4); | |
10379 | ||
fbaf61ad | 10380 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
10381 | { |
10382 | cond_irelfn = | |
10383 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10384 | checked_types[i], laddr); | |
10385 | if (cond_irelfn != irelend) | |
10386 | break; | |
10387 | } | |
35c08157 | 10388 | |
fbaf61ad NC |
10389 | if (hi_irelfn == irelend |
10390 | || lo_irelfn == irelend | |
10391 | || cond_irelfn == irelend) | |
1c8f6a4d | 10392 | { |
695344c0 | 10393 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP3", |
2dcf00ce | 10394 | (uint64_t) irel->r_offset); |
0a1b45a2 | 10395 | return false; |
1c8f6a4d | 10396 | } |
35c08157 | 10397 | |
1c8f6a4d | 10398 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10399 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 10400 | |
fbaf61ad NC |
10401 | if (foff == 0 |
10402 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d | 10403 | || foff >= CONSERVATIVE_24BIT_S1) |
0a1b45a2 | 10404 | return false; |
35c08157 | 10405 | |
1c8f6a4d KLC |
10406 | /* Get the all corresponding instructions. */ |
10407 | if (first_size == 4) | |
10408 | { | |
10409 | insn = bfd_getb32 (contents + laddr); | |
10410 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
10411 | } | |
10412 | else | |
10413 | { | |
10414 | insn16 = bfd_getb16 (contents + laddr); | |
10415 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
10416 | } | |
35c08157 | 10417 | |
1c8f6a4d KLC |
10418 | /* For simplicity of coding, we are going to modify the section |
10419 | contents, the section relocs, and the BFD symbol table. We | |
10420 | must tell the rest of the code not to free up this | |
10421 | information. It would be possible to instead create a table | |
10422 | of changes which have to be made, as is done in coff-mips.c; | |
10423 | that would be more work, but would require less memory when | |
10424 | the linker is run. */ | |
35c08157 | 10425 | |
fbaf61ad NC |
10426 | if (re_insn16 |
10427 | && foff >= -ACCURATE_8BIT_S1 - first_size | |
1c8f6a4d KLC |
10428 | && foff < ACCURATE_8BIT_S1 - first_size) |
10429 | { | |
10430 | if (!(seq_len & 0x2)) | |
10431 | { | |
10432 | /* Don't convert it to 16-bit now, keep this as relaxable | |
10433 | for ``label reloc; INSN1a''6. */ | |
10434 | /* Save comp_insn32 to buffer. */ | |
10435 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10436 | *insn_len = 4; | |
10437 | reloc = (N32_OP6 (re_insn) == N32_OP6_BR1) ? | |
10438 | R_NDS32_15_PCREL_RELA : R_NDS32_17_PCREL_RELA; | |
10439 | cond_reloc = R_NDS32_INSN16; | |
10440 | } | |
10441 | else | |
10442 | { | |
10443 | /* Not optimize for speed; convert sequence to 16-bit. */ | |
10444 | /* Save comp_insn16 to buffer. */ | |
10445 | bfd_putb16 (re_insn16, contents + irel->r_offset); | |
10446 | *insn_len = 2; | |
10447 | reloc = R_NDS32_9_PCREL_RELA; | |
10448 | cond_reloc = R_NDS32_NONE; | |
10449 | } | |
10450 | cond_removed = 1; | |
10451 | } | |
10452 | else if (N32_OP6 (re_insn) == N32_OP6_BR1 | |
10453 | && (foff >= -(ACCURATE_14BIT_S1 - first_size) | |
10454 | && foff < ACCURATE_14BIT_S1 - first_size)) | |
10455 | { | |
10456 | /* beqs label ; 15_PCREL */ | |
10457 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10458 | *insn_len = 4; | |
10459 | reloc = R_NDS32_15_PCREL_RELA; | |
10460 | cond_reloc = R_NDS32_NONE; | |
10461 | cond_removed = 1; | |
10462 | } | |
10463 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
10464 | && foff >= -CONSERVATIVE_16BIT_S1 | |
10465 | && foff < CONSERVATIVE_16BIT_S1) | |
10466 | { | |
10467 | /* beqz label ; 17_PCREL */ | |
10468 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10469 | *insn_len = 4; | |
10470 | reloc = R_NDS32_17_PCREL_RELA; | |
10471 | cond_reloc = R_NDS32_NONE; | |
10472 | cond_removed = 1; | |
10473 | } | |
10474 | else if (foff >= -CONSERVATIVE_24BIT_S1 - reloc_off | |
10475 | && foff < CONSERVATIVE_24BIT_S1 - reloc_off) | |
10476 | { | |
10477 | /* Relax to one of the following 3 variations | |
10478 | ||
10479 | case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize | |
10480 | for space | |
10481 | bnes38 rt, $1 ; LONGJUMP2 | |
10482 | j label ; 25_PCREL | |
10483 | $1 | |
10484 | ||
10485 | case 4-4; 1st insn not convertible, others don't care | |
10486 | bne rt, ra, $1 ; LONGJUMP2 | |
10487 | j label ; 25_PCREL | |
10488 | $1 | |
10489 | ||
10490 | case 4-4; 1st insn convertible, 16-bit on, optimize for speed | |
10491 | bne rt, ra, $1 ; LONGJUMP2 | |
10492 | j label ; 25_PCREL | |
10493 | $1 */ | |
10494 | ||
10495 | /* Offset for first instruction. */ | |
10496 | ||
10497 | /* Use j label as second instruction. */ | |
10498 | *insn_len = 4 + first_size; | |
10499 | insn = INSN_J; | |
10500 | bfd_putb32 (insn, contents + hi_irelfn->r_offset); | |
10501 | reloc = R_NDS32_LONGJUMP2; | |
10502 | cond_reloc = R_NDS32_25_PLTREL; | |
10503 | } | |
10504 | else | |
0a1b45a2 | 10505 | return false; |
35c08157 | 10506 | |
1c8f6a4d KLC |
10507 | if (cond_removed == 1) |
10508 | { | |
10509 | /* Set all relocations. */ | |
10510 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), reloc); | |
10511 | irel->r_addend = hi_irelfn->r_addend; | |
10512 | ||
10513 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), | |
10514 | cond_reloc); | |
10515 | cond_irelfn->r_addend = 0; | |
10516 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
10517 | R_NDS32_NONE); | |
10518 | } | |
10519 | else | |
10520 | { | |
10521 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
fbaf61ad | 10522 | irel->r_addend = irel->r_addend; |
1c8f6a4d KLC |
10523 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), |
10524 | cond_reloc); | |
10525 | } | |
35c08157 | 10526 | |
1c8f6a4d KLC |
10527 | if ((seq_len ^ *insn_len ) & 0x2) |
10528 | { | |
10529 | insn16 = NDS32_NOP16; | |
10530 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
10531 | lo_irelfn->r_offset = *insn_len; | |
10532 | lo_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
10533 | R_NDS32_INSN16); | |
10534 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
10535 | *insn_len += 2; | |
10536 | } | |
10537 | else | |
10538 | lo_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
10539 | R_NDS32_NONE); | |
0a1b45a2 | 10540 | return true; |
1c8f6a4d | 10541 | } |
35c08157 | 10542 | |
1c8f6a4d | 10543 | /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */ |
35c08157 | 10544 | |
0a1b45a2 | 10545 | static bool |
1c8f6a4d KLC |
10546 | nds32_elf_relax_longcall4 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
10547 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10548 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10549 | Elf_Internal_Shdr *symtab_hdr) | |
10550 | { | |
10551 | /* The pattern for LONGCALL4. Support for function cse. | |
10552 | sethi ta, hi20(symbol) ; LONGCALL4/HI20 | |
10553 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
10554 | jral ta ; PTR_RES/EMPTY/INSN16 */ | |
35c08157 | 10555 | |
1c8f6a4d KLC |
10556 | bfd_vma laddr; |
10557 | uint32_t insn; | |
10558 | Elf_Internal_Rela *hi_irel, *ptr_irel, *insn_irel, *em_irel, *call_irel; | |
10559 | Elf_Internal_Rela *irelend; | |
1c8f6a4d | 10560 | bfd_signed_vma foff; |
35c08157 | 10561 | |
1c8f6a4d KLC |
10562 | irelend = internal_relocs + sec->reloc_count; |
10563 | laddr = irel->r_offset; | |
35c08157 | 10564 | |
1c8f6a4d KLC |
10565 | /* Get the reloc for the address from which the register is |
10566 | being loaded. This reloc will tell us which function is | |
10567 | actually being called. */ | |
10568 | hi_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10569 | R_NDS32_HI20_RELA, laddr); | |
35c08157 | 10570 | |
1c8f6a4d KLC |
10571 | if (hi_irel == irelend) |
10572 | { | |
695344c0 | 10573 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL4", |
2dcf00ce | 10574 | (uint64_t) irel->r_offset); |
0a1b45a2 | 10575 | return false; |
1c8f6a4d | 10576 | } |
35c08157 | 10577 | |
1c8f6a4d | 10578 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10579 | foff = calculate_offset (abfd, sec, hi_irel, isymbuf, symtab_hdr); |
35c08157 | 10580 | |
1c8f6a4d | 10581 | /* This condition only happened when symbol is undefined. */ |
fbaf61ad NC |
10582 | if (foff == 0 |
10583 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d | 10584 | || foff >= CONSERVATIVE_24BIT_S1) |
0a1b45a2 | 10585 | return false; |
35c08157 | 10586 | |
fbaf61ad | 10587 | /* Relax to: jal symbol; 25_PCREL. */ |
1c8f6a4d KLC |
10588 | /* For simplicity of coding, we are going to modify the section |
10589 | contents, the section relocs, and the BFD symbol table. We | |
10590 | must tell the rest of the code not to free up this | |
10591 | information. It would be possible to instead create a table | |
10592 | of changes which have to be made, as is done in coff-mips.c; | |
10593 | that would be more work, but would require less memory when | |
10594 | the linker is run. */ | |
35c08157 | 10595 | |
1c8f6a4d KLC |
10596 | ptr_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10597 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
10598 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10599 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 10600 | |
1c8f6a4d KLC |
10601 | if (ptr_irel == irelend || em_irel == irelend) |
10602 | { | |
695344c0 | 10603 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL4", |
2dcf00ce | 10604 | (uint64_t) irel->r_offset); |
0a1b45a2 | 10605 | return false; |
1c8f6a4d KLC |
10606 | } |
10607 | /* Check these is enough space to insert jal in R_NDS32_EMPTY. */ | |
10608 | insn = bfd_getb32 (contents + irel->r_addend); | |
10609 | if (insn & 0x80000000) | |
0a1b45a2 | 10610 | return false; |
35c08157 | 10611 | |
1c8f6a4d KLC |
10612 | /* Replace the long call with a jal. */ |
10613 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), | |
10614 | R_NDS32_25_PCREL_RELA); | |
10615 | ptr_irel->r_addend = 1; | |
35c08157 | 10616 | |
1c8f6a4d KLC |
10617 | /* We don't resolve this here but resolve it in relocate_section. */ |
10618 | insn = INSN_JAL; | |
10619 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
35c08157 | 10620 | |
1c8f6a4d KLC |
10621 | irel->r_info = |
10622 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10623 | |
1c8f6a4d KLC |
10624 | /* If there is function cse, HI20 can not remove now. */ |
10625 | call_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10626 | R_NDS32_LONGCALL4, laddr); | |
10627 | if (call_irel == irelend) | |
10628 | { | |
10629 | *insn_len = 0; | |
10630 | hi_irel->r_info = | |
10631 | ELF32_R_INFO (ELF32_R_SYM (hi_irel->r_info), R_NDS32_NONE); | |
10632 | } | |
35c08157 | 10633 | |
1c8f6a4d KLC |
10634 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10635 | R_NDS32_INSN16, irel->r_addend); | |
10636 | if (insn_irel != irelend) | |
10637 | insn_irel->r_info = | |
10638 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10639 | |
0a1b45a2 | 10640 | return true; |
1c8f6a4d | 10641 | } |
35c08157 | 10642 | |
1c8f6a4d | 10643 | /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */ |
35c08157 | 10644 | |
0a1b45a2 | 10645 | static bool |
1c8f6a4d KLC |
10646 | nds32_elf_relax_longcall5 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
10647 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10648 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10649 | Elf_Internal_Shdr *symtab_hdr) | |
10650 | { | |
10651 | /* The pattern for LONGCALL5. | |
10652 | bltz rt, .L1 ; LONGCALL5/17_PCREL | |
10653 | jal symbol ; 25_PCREL | |
10654 | .L1: */ | |
35c08157 | 10655 | |
1c8f6a4d KLC |
10656 | bfd_vma laddr; |
10657 | uint32_t insn; | |
10658 | Elf_Internal_Rela *cond_irel, *irelend; | |
1c8f6a4d | 10659 | bfd_signed_vma foff; |
35c08157 | 10660 | |
1c8f6a4d KLC |
10661 | irelend = internal_relocs + sec->reloc_count; |
10662 | laddr = irel->r_offset; | |
10663 | insn = bfd_getb32 (contents + laddr); | |
35c08157 | 10664 | |
1c8f6a4d KLC |
10665 | /* Get the reloc for the address from which the register is |
10666 | being loaded. This reloc will tell us which function is | |
10667 | actually being called. */ | |
10668 | cond_irel = | |
10669 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10670 | R_NDS32_25_PCREL_RELA, irel->r_addend); | |
10671 | if (cond_irel == irelend) | |
10672 | { | |
695344c0 | 10673 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL5", |
2dcf00ce | 10674 | (uint64_t) irel->r_offset); |
0a1b45a2 | 10675 | return false; |
1c8f6a4d | 10676 | } |
35c08157 | 10677 | |
1c8f6a4d | 10678 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10679 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr); |
35c08157 | 10680 | |
fbaf61ad NC |
10681 | if (foff == 0 |
10682 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d | 10683 | || foff >= CONSERVATIVE_16BIT_S1) |
0a1b45a2 | 10684 | return false; |
35c08157 | 10685 | |
1c8f6a4d | 10686 | /* Relax to bgezal rt, label ; 17_PCREL |
fbaf61ad | 10687 | or bltzal rt, label ; 17_PCREL. */ |
35c08157 | 10688 | |
1c8f6a4d KLC |
10689 | /* Convert to complimentary conditional call. */ |
10690 | insn = CONVERT_CONDITION_CALL (insn); | |
35c08157 | 10691 | |
1c8f6a4d KLC |
10692 | /* For simplicity of coding, we are going to modify the section |
10693 | contents, the section relocs, and the BFD symbol table. We | |
10694 | must tell the rest of the code not to free up this | |
10695 | information. It would be possible to instead create a table | |
10696 | of changes which have to be made, as is done in coff-mips.c; | |
10697 | that would be more work, but would require less memory when | |
10698 | the linker is run. */ | |
35c08157 | 10699 | |
1c8f6a4d KLC |
10700 | /* Modify relocation and contents. */ |
10701 | cond_irel->r_info = | |
10702 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_17_PCREL_RELA); | |
35c08157 | 10703 | |
1c8f6a4d KLC |
10704 | /* Replace the long call with a bgezal. */ |
10705 | bfd_putb32 (insn, contents + cond_irel->r_offset); | |
10706 | *insn_len = 0; | |
35c08157 | 10707 | |
1c8f6a4d KLC |
10708 | /* Clean unnessary relocations. */ |
10709 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10710 | |
1c8f6a4d KLC |
10711 | cond_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10712 | R_NDS32_17_PCREL_RELA, laddr); | |
10713 | cond_irel->r_info = | |
10714 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 10715 | |
0a1b45a2 | 10716 | return true; |
1c8f6a4d | 10717 | } |
35c08157 | 10718 | |
1c8f6a4d | 10719 | /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */ |
35c08157 | 10720 | |
0a1b45a2 | 10721 | static bool |
1c8f6a4d KLC |
10722 | nds32_elf_relax_longcall6 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
10723 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10724 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10725 | Elf_Internal_Shdr *symtab_hdr) | |
10726 | { | |
10727 | /* The pattern for LONGCALL6. | |
10728 | bltz rt, .L1 ; LONGCALL6/17_PCREL | |
10729 | sethi ta, hi20(symbol) ; HI20/PTR | |
10730 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
10731 | jral ta ; PTR_RES/EMPTY/INSN16 | |
10732 | .L1 */ | |
10733 | ||
10734 | bfd_vma laddr; | |
10735 | uint32_t insn; | |
10736 | Elf_Internal_Rela *em_irel, *cond_irel, *irelend; | |
1c8f6a4d | 10737 | bfd_signed_vma foff; |
35c08157 | 10738 | |
1c8f6a4d KLC |
10739 | irelend = internal_relocs + sec->reloc_count; |
10740 | laddr = irel->r_offset; | |
35c08157 | 10741 | |
1c8f6a4d KLC |
10742 | /* Get the reloc for the address from which the register is |
10743 | being loaded. This reloc will tell us which function is | |
10744 | actually being called. */ | |
10745 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10746 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 10747 | |
1c8f6a4d KLC |
10748 | if (em_irel == irelend) |
10749 | { | |
695344c0 | 10750 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL6", |
2dcf00ce | 10751 | (uint64_t) irel->r_offset); |
0a1b45a2 | 10752 | return false; |
1c8f6a4d | 10753 | } |
35c08157 | 10754 | |
1c8f6a4d | 10755 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10756 | foff = calculate_offset (abfd, sec, em_irel, isymbuf, symtab_hdr); |
35c08157 | 10757 | |
fbaf61ad NC |
10758 | if (foff == 0 |
10759 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d | 10760 | || foff >= CONSERVATIVE_24BIT_S1) |
0a1b45a2 | 10761 | return false; |
35c08157 | 10762 | |
1c8f6a4d KLC |
10763 | /* Check these is enough space to insert jal in R_NDS32_EMPTY. */ |
10764 | insn = bfd_getb32 (contents + irel->r_addend); | |
10765 | if (insn & 0x80000000) | |
0a1b45a2 | 10766 | return false; |
35c08157 | 10767 | |
1c8f6a4d KLC |
10768 | insn = bfd_getb32 (contents + laddr); |
10769 | if (foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
10770 | { | |
10771 | /* Relax to bgezal rt, label ; 17_PCREL | |
fbaf61ad | 10772 | or bltzal rt, label ; 17_PCREL. */ |
35c08157 | 10773 | |
1c8f6a4d KLC |
10774 | /* Convert to complimentary conditional call. */ |
10775 | *insn_len = 0; | |
10776 | insn = CONVERT_CONDITION_CALL (insn); | |
10777 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
10778 | ||
10779 | em_irel->r_info = | |
10780 | ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), R_NDS32_17_PCREL_RELA); | |
10781 | ||
10782 | /* Set resolved relocation. */ | |
10783 | cond_irel = | |
10784 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10785 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
10786 | if (cond_irel == irelend) | |
35c08157 | 10787 | { |
695344c0 | 10788 | _bfd_error_handler (unrecognized_reloc_msg, abfd, |
2dcf00ce | 10789 | "R_NDS32_LONGCALL6", (uint64_t) irel->r_offset); |
0a1b45a2 | 10790 | return false; |
1c8f6a4d KLC |
10791 | } |
10792 | cond_irel->r_addend = 1; | |
35c08157 | 10793 | |
1c8f6a4d | 10794 | /* Clear relocations. */ |
35c08157 | 10795 | |
1c8f6a4d KLC |
10796 | irel->r_info = |
10797 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10798 | |
1c8f6a4d KLC |
10799 | cond_irel = |
10800 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10801 | R_NDS32_17_PCREL_RELA, laddr); | |
10802 | if (cond_irel != irelend) | |
10803 | cond_irel->r_info = | |
10804 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 10805 | |
1c8f6a4d KLC |
10806 | cond_irel = |
10807 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10808 | R_NDS32_INSN16, irel->r_addend); | |
10809 | if (cond_irel != irelend) | |
10810 | cond_irel->r_info = | |
10811 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 10812 | |
1c8f6a4d KLC |
10813 | } |
10814 | else if (foff >= -CONSERVATIVE_24BIT_S1 && foff < CONSERVATIVE_24BIT_S1) | |
10815 | { | |
10816 | /* Relax to the following instruction sequence | |
10817 | bltz rt, .L1 ; LONGCALL2/17_PCREL | |
10818 | jal symbol ; 25_PCREL/PTR_RES | |
10819 | .L1 */ | |
10820 | *insn_len = 4; | |
10821 | /* Convert instruction. */ | |
10822 | insn = INSN_JAL; | |
10823 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
35c08157 | 10824 | |
1c8f6a4d KLC |
10825 | /* Convert relocations. */ |
10826 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), | |
10827 | R_NDS32_25_PCREL_RELA); | |
10828 | irel->r_info = | |
10829 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_LONGCALL5); | |
35c08157 | 10830 | |
1c8f6a4d KLC |
10831 | /* Set resolved relocation. */ |
10832 | cond_irel = | |
10833 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10834 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
10835 | if (cond_irel == irelend) | |
10836 | { | |
695344c0 | 10837 | _bfd_error_handler (unrecognized_reloc_msg, abfd, |
2dcf00ce | 10838 | "R_NDS32_LONGCALL6", (uint64_t) irel->r_offset); |
0a1b45a2 | 10839 | return false; |
1c8f6a4d KLC |
10840 | } |
10841 | cond_irel->r_addend = 1; | |
35c08157 | 10842 | |
1c8f6a4d KLC |
10843 | cond_irel = |
10844 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10845 | R_NDS32_INSN16, irel->r_addend); | |
10846 | if (cond_irel != irelend) | |
10847 | cond_irel->r_info = | |
10848 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
10849 | } | |
0a1b45a2 | 10850 | return true; |
1c8f6a4d | 10851 | } |
35c08157 | 10852 | |
1c8f6a4d | 10853 | /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */ |
35c08157 | 10854 | |
0a1b45a2 | 10855 | static bool |
1c8f6a4d KLC |
10856 | nds32_elf_relax_longjump4 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
10857 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10858 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10859 | Elf_Internal_Shdr *symtab_hdr) | |
10860 | { | |
10861 | /* The pattern for LONGJUMP4. | |
10862 | sethi ta, hi20(symbol) ; LONGJUMP4/HI20 | |
10863 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
10864 | jr ta ; PTR_RES/INSN16/EMPTY */ | |
10865 | ||
10866 | bfd_vma laddr; | |
10867 | int seq_len; /* Original length of instruction sequence. */ | |
10868 | uint32_t insn; | |
10869 | Elf_Internal_Rela *hi_irel, *ptr_irel, *em_irel, *call_irel, *irelend; | |
1c8f6a4d | 10870 | bfd_signed_vma foff; |
35c08157 | 10871 | |
1c8f6a4d KLC |
10872 | irelend = internal_relocs + sec->reloc_count; |
10873 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
10874 | laddr = irel->r_offset; | |
10875 | *insn_len = seq_len; | |
35c08157 | 10876 | |
1c8f6a4d KLC |
10877 | /* Get the reloc for the address from which the register is |
10878 | being loaded. This reloc will tell us which function is | |
10879 | actually being called. */ | |
35c08157 | 10880 | |
1c8f6a4d KLC |
10881 | hi_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10882 | R_NDS32_HI20_RELA, laddr); | |
35c08157 | 10883 | |
1c8f6a4d KLC |
10884 | if (hi_irel == irelend) |
10885 | { | |
695344c0 | 10886 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP4", |
2dcf00ce | 10887 | (uint64_t) irel->r_offset); |
0a1b45a2 | 10888 | return false; |
1c8f6a4d | 10889 | } |
35c08157 | 10890 | |
1c8f6a4d | 10891 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10892 | foff = calculate_offset (abfd, sec, hi_irel, isymbuf, symtab_hdr); |
35c08157 | 10893 | |
fbaf61ad NC |
10894 | if (foff == 0 |
10895 | || foff >= CONSERVATIVE_24BIT_S1 | |
1c8f6a4d | 10896 | || foff < -CONSERVATIVE_24BIT_S1) |
0a1b45a2 | 10897 | return false; |
35c08157 | 10898 | |
1c8f6a4d KLC |
10899 | /* Convert it to "j label", it may be converted to j8 in the final |
10900 | pass of relaxation. Therefore, we do not consider this currently. */ | |
10901 | ptr_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10902 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
10903 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10904 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 10905 | |
1c8f6a4d KLC |
10906 | if (ptr_irel == irelend || em_irel == irelend) |
10907 | { | |
695344c0 | 10908 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP4", |
2dcf00ce | 10909 | (uint64_t) irel->r_offset); |
0a1b45a2 | 10910 | return false; |
1c8f6a4d | 10911 | } |
35c08157 | 10912 | |
1c8f6a4d KLC |
10913 | em_irel->r_info = |
10914 | ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), R_NDS32_25_PCREL_RELA); | |
10915 | ptr_irel->r_addend = 1; | |
35c08157 | 10916 | |
1c8f6a4d KLC |
10917 | /* Write instruction. */ |
10918 | insn = INSN_J; | |
10919 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
35c08157 | 10920 | |
1c8f6a4d KLC |
10921 | /* Clear relocations. */ |
10922 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10923 | |
1c8f6a4d KLC |
10924 | /* If there is function cse, HI20 can not remove now. */ |
10925 | call_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10926 | R_NDS32_LONGJUMP4, laddr); | |
10927 | if (call_irel == irelend) | |
10928 | { | |
10929 | *insn_len = 0; | |
10930 | hi_irel->r_info = | |
10931 | ELF32_R_INFO (ELF32_R_SYM (hi_irel->r_info), R_NDS32_NONE); | |
10932 | } | |
35c08157 | 10933 | |
0a1b45a2 | 10934 | return true; |
1c8f6a4d | 10935 | } |
35c08157 | 10936 | |
1c8f6a4d | 10937 | /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */ |
35c08157 | 10938 | |
0a1b45a2 | 10939 | static bool |
1c8f6a4d KLC |
10940 | nds32_elf_relax_longjump5 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
10941 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10942 | int *seq_len, bfd_byte *contents, | |
10943 | Elf_Internal_Sym *isymbuf, | |
10944 | Elf_Internal_Shdr *symtab_hdr) | |
10945 | { | |
10946 | /* There are 2 variations for LONGJUMP5 | |
10947 | case 2-4; 1st insn convertible, 16-bit on. | |
10948 | bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16 | |
10949 | j label ; 25_PCREL/INSN16 | |
10950 | $1: | |
10951 | ||
10952 | case 4-4; 1st insn not convertible | |
10953 | bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16 | |
10954 | j label ; 25_PCREL/INSN16 | |
10955 | .L1: */ | |
10956 | ||
10957 | bfd_vma laddr; | |
10958 | Elf_Internal_Rela *cond_irel, *irelend; | |
1c8f6a4d KLC |
10959 | unsigned int i; |
10960 | bfd_signed_vma foff; | |
10961 | uint32_t insn, re_insn = 0; | |
10962 | uint16_t insn16, re_insn16 = 0; | |
10963 | unsigned long reloc; | |
35c08157 | 10964 | |
1c8f6a4d KLC |
10965 | enum elf_nds32_reloc_type checked_types[] = |
10966 | { R_NDS32_17_PCREL_RELA, R_NDS32_15_PCREL_RELA, | |
10967 | R_NDS32_9_PCREL_RELA, R_NDS32_INSN16 }; | |
35c08157 | 10968 | |
1c8f6a4d KLC |
10969 | irelend = internal_relocs + sec->reloc_count; |
10970 | laddr = irel->r_offset; | |
35c08157 | 10971 | |
1c8f6a4d KLC |
10972 | /* Get the reloc for the address from which the register is |
10973 | being loaded. This reloc will tell us which function is | |
10974 | actually being called. */ | |
35c08157 | 10975 | |
1c8f6a4d KLC |
10976 | cond_irel = |
10977 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10978 | R_NDS32_25_PCREL_RELA, irel->r_addend); | |
10979 | if (cond_irel == irelend) | |
10980 | { | |
695344c0 | 10981 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP5", |
2dcf00ce | 10982 | (uint64_t) irel->r_offset); |
0a1b45a2 | 10983 | return false; |
1c8f6a4d | 10984 | } |
35c08157 | 10985 | |
1c8f6a4d | 10986 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10987 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr); |
35c08157 | 10988 | |
fbaf61ad NC |
10989 | if (foff == 0 |
10990 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d | 10991 | || foff >= CONSERVATIVE_16BIT_S1) |
0a1b45a2 | 10992 | return false; |
35c08157 | 10993 | |
1c8f6a4d KLC |
10994 | /* Get the all corresponding instructions. */ |
10995 | insn = bfd_getb32 (contents + laddr); | |
10996 | /* Check instruction size. */ | |
10997 | if (insn & 0x80000000) | |
10998 | { | |
10999 | *seq_len = 0; | |
11000 | insn16 = insn >> 16; | |
11001 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
11002 | } | |
11003 | else | |
11004 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
35c08157 | 11005 | |
1c8f6a4d KLC |
11006 | if (N32_OP6 (re_insn) == N32_OP6_BR1 |
11007 | && (foff >= -CONSERVATIVE_14BIT_S1 && foff < CONSERVATIVE_14BIT_S1)) | |
11008 | { | |
11009 | /* beqs label ; 15_PCREL. */ | |
11010 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
11011 | reloc = R_NDS32_15_PCREL_RELA; | |
11012 | } | |
11013 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
11014 | && foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
11015 | { | |
11016 | /* beqz label ; 17_PCREL. */ | |
11017 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
11018 | reloc = R_NDS32_17_PCREL_RELA; | |
11019 | } | |
11020 | else if ( N32_OP6 (re_insn) == N32_OP6_BR3 | |
11021 | && foff >= -CONSERVATIVE_8BIT_S1 && foff < CONSERVATIVE_8BIT_S1) | |
11022 | { | |
11023 | /* beqc label ; 9_PCREL. */ | |
11024 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
11025 | reloc = R_NDS32_WORD_9_PCREL_RELA; | |
11026 | } | |
11027 | else | |
0a1b45a2 | 11028 | return false; |
35c08157 | 11029 | |
1c8f6a4d KLC |
11030 | /* Set all relocations. */ |
11031 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), reloc); | |
35c08157 | 11032 | |
1c8f6a4d KLC |
11033 | /* Clean relocations. */ |
11034 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
fbaf61ad | 11035 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
11036 | { |
11037 | cond_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11038 | checked_types[i], laddr); | |
11039 | if (cond_irel != irelend) | |
11040 | { | |
11041 | if (*seq_len == 0 | |
11042 | && (ELF32_R_TYPE (cond_irel->r_info) == R_NDS32_INSN16)) | |
35c08157 | 11043 | { |
1c8f6a4d KLC |
11044 | /* If the branch instruction is 2 byte, it cannot remove |
11045 | directly. Only convert it to nop16 and remove it after | |
11046 | checking alignment issue. */ | |
11047 | insn16 = NDS32_NOP16; | |
11048 | bfd_putb16 (insn16, contents + laddr); | |
11049 | cond_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
35c08157 KLC |
11050 | } |
11051 | else | |
1c8f6a4d KLC |
11052 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), |
11053 | R_NDS32_NONE); | |
35c08157 | 11054 | } |
1c8f6a4d KLC |
11055 | } |
11056 | *insn_len = 0; | |
35c08157 | 11057 | |
0a1b45a2 | 11058 | return true; |
1c8f6a4d | 11059 | } |
35c08157 | 11060 | |
1c8f6a4d | 11061 | /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */ |
35c08157 | 11062 | |
0a1b45a2 | 11063 | static bool |
1c8f6a4d KLC |
11064 | nds32_elf_relax_longjump6 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
11065 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11066 | int *seq_len, bfd_byte *contents, | |
11067 | Elf_Internal_Sym *isymbuf, | |
11068 | Elf_Internal_Shdr *symtab_hdr) | |
11069 | { | |
11070 | /* There are 5 variations for LONGJUMP6 | |
11071 | case : 2-4-4-4; 1st insn convertible, 16-bit on. | |
11072 | bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16 | |
11073 | sethi ta, hi20(symbol) ; HI20/PTR | |
11074 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
11075 | jr ta ; PTR_RES/INSN16/EMPTY | |
11076 | .L1: | |
11077 | ||
11078 | case : 4-4-4-4; 1st insn not convertible, 16-bit on. | |
11079 | bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16 | |
11080 | sethi ta, hi20(symbol) ; HI20/PTR | |
11081 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
11082 | jr ta ; PTR_RES/INSN16/EMPTY | |
11083 | .L1: */ | |
11084 | ||
11085 | enum elf_nds32_reloc_type checked_types[] = | |
11086 | { R_NDS32_17_PCREL_RELA, R_NDS32_15_PCREL_RELA, | |
11087 | R_NDS32_9_PCREL_RELA, R_NDS32_INSN16 }; | |
11088 | ||
11089 | int reloc_off = 0, cond_removed = 0; | |
11090 | bfd_vma laddr; | |
11091 | Elf_Internal_Rela *cond_irel, *em_irel, *irelend, *insn_irel; | |
1c8f6a4d KLC |
11092 | unsigned int i; |
11093 | bfd_signed_vma foff; | |
11094 | uint32_t insn, re_insn = 0; | |
11095 | uint16_t insn16, re_insn16 = 0; | |
11096 | unsigned long reloc; | |
35c08157 | 11097 | |
1c8f6a4d KLC |
11098 | irelend = internal_relocs + sec->reloc_count; |
11099 | laddr = irel->r_offset; | |
35c08157 | 11100 | |
1c8f6a4d KLC |
11101 | /* Get the reloc for the address from which the register is |
11102 | being loaded. This reloc will tell us which function is | |
11103 | actually being called. */ | |
11104 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11105 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 11106 | |
1c8f6a4d KLC |
11107 | if (em_irel == irelend) |
11108 | { | |
695344c0 | 11109 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP6", |
2dcf00ce | 11110 | (uint64_t) irel->r_offset); |
0a1b45a2 | 11111 | return false; |
1c8f6a4d | 11112 | } |
35c08157 | 11113 | |
1c8f6a4d | 11114 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 11115 | foff = calculate_offset (abfd, sec, em_irel, isymbuf, symtab_hdr); |
35c08157 | 11116 | |
fbaf61ad NC |
11117 | if (foff == 0 |
11118 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d | 11119 | || foff >= CONSERVATIVE_24BIT_S1) |
0a1b45a2 | 11120 | return false; |
35c08157 | 11121 | |
1c8f6a4d KLC |
11122 | insn = bfd_getb32 (contents + laddr); |
11123 | /* Check instruction size. */ | |
11124 | if (insn & 0x80000000) | |
11125 | { | |
11126 | *seq_len = 0; | |
11127 | insn16 = insn >> 16; | |
11128 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
11129 | } | |
11130 | else | |
11131 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
35c08157 | 11132 | |
1c8f6a4d KLC |
11133 | /* For simplicity of coding, we are going to modify the section |
11134 | contents, the section relocs, and the BFD symbol table. We | |
11135 | must tell the rest of the code not to free up this | |
11136 | information. It would be possible to instead create a table | |
11137 | of changes which have to be made, as is done in coff-mips.c; | |
11138 | that would be more work, but would require less memory when | |
11139 | the linker is run. */ | |
35c08157 | 11140 | |
1c8f6a4d KLC |
11141 | if (N32_OP6 (re_insn) == N32_OP6_BR1 |
11142 | && (foff >= -CONSERVATIVE_14BIT_S1 && foff < CONSERVATIVE_14BIT_S1)) | |
11143 | { | |
fbaf61ad | 11144 | /* beqs label ; 15_PCREL. */ |
1c8f6a4d KLC |
11145 | bfd_putb32 (re_insn, contents + em_irel->r_offset); |
11146 | reloc = R_NDS32_15_PCREL_RELA; | |
11147 | cond_removed = 1; | |
11148 | } | |
11149 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
11150 | && foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
11151 | { | |
fbaf61ad | 11152 | /* beqz label ; 17_PCREL. */ |
1c8f6a4d KLC |
11153 | bfd_putb32 (re_insn, contents + em_irel->r_offset); |
11154 | reloc = R_NDS32_17_PCREL_RELA; | |
11155 | cond_removed = 1; | |
11156 | } | |
11157 | else if (foff >= -CONSERVATIVE_24BIT_S1 - reloc_off | |
11158 | && foff < CONSERVATIVE_24BIT_S1 - reloc_off) | |
11159 | { | |
11160 | /* Relax to one of the following 2 variations | |
35c08157 | 11161 | |
1c8f6a4d KLC |
11162 | case 2-4; 1st insn convertible, 16-bit on. |
11163 | bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16 | |
11164 | j label ; 25_PCREL/INSN16 | |
11165 | $1: | |
35c08157 | 11166 | |
1c8f6a4d KLC |
11167 | case 4-4; 1st insn not convertible |
11168 | bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16 | |
11169 | j label ; 25_PCREL/INSN16 | |
11170 | .L1: */ | |
35c08157 | 11171 | |
1c8f6a4d KLC |
11172 | /* Use j label as second instruction. */ |
11173 | insn = INSN_J; | |
11174 | reloc = R_NDS32_25_PCREL_RELA; | |
11175 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
11176 | } | |
11177 | else | |
0a1b45a2 | 11178 | return false; |
35c08157 | 11179 | |
1c8f6a4d KLC |
11180 | /* Set all relocations. */ |
11181 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), reloc); | |
35c08157 | 11182 | |
1c8f6a4d KLC |
11183 | cond_irel = |
11184 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11185 | R_NDS32_PTR_RESOLVED, em_irel->r_offset); | |
11186 | cond_irel->r_addend = 1; | |
35c08157 | 11187 | |
1c8f6a4d KLC |
11188 | /* Use INSN16 of first branch instruction to distinguish if keeping |
11189 | INSN16 of final instruction or not. */ | |
11190 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11191 | R_NDS32_INSN16, irel->r_offset); | |
11192 | if (insn_irel == irelend) | |
11193 | { | |
11194 | /* Clean the final INSN16. */ | |
11195 | insn_irel = | |
11196 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11197 | R_NDS32_INSN16, em_irel->r_offset); | |
11198 | insn_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
11199 | R_NDS32_NONE); | |
11200 | } | |
11201 | ||
11202 | if (cond_removed == 1) | |
11203 | { | |
11204 | *insn_len = 0; | |
11205 | ||
11206 | /* Clear relocations. */ | |
11207 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 11208 | |
fbaf61ad | 11209 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
11210 | { |
11211 | cond_irel = | |
11212 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11213 | checked_types[i], laddr); | |
11214 | if (cond_irel != irelend) | |
35c08157 | 11215 | { |
1c8f6a4d KLC |
11216 | if (*seq_len == 0 |
11217 | && (ELF32_R_TYPE (cond_irel->r_info) == R_NDS32_INSN16)) | |
11218 | { | |
11219 | /* If the branch instruction is 2 byte, it cannot remove | |
11220 | directly. Only convert it to nop16 and remove it after | |
11221 | checking alignment issue. */ | |
11222 | insn16 = NDS32_NOP16; | |
11223 | bfd_putb16 (insn16, contents + laddr); | |
11224 | cond_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
11225 | } | |
11226 | else | |
11227 | cond_irel->r_info = | |
11228 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 11229 | } |
35c08157 | 11230 | } |
1c8f6a4d KLC |
11231 | } |
11232 | else | |
11233 | { | |
11234 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
11235 | R_NDS32_LONGJUMP5); | |
11236 | } | |
35c08157 | 11237 | |
0a1b45a2 | 11238 | return true; |
1c8f6a4d | 11239 | } |
35c08157 | 11240 | |
1c8f6a4d | 11241 | /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */ |
35c08157 | 11242 | |
0a1b45a2 | 11243 | static bool |
1c8f6a4d KLC |
11244 | nds32_elf_relax_longjump7 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
11245 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11246 | int *seq_len, bfd_byte *contents, | |
11247 | Elf_Internal_Sym *isymbuf, | |
11248 | Elf_Internal_Shdr *symtab_hdr) | |
11249 | { | |
11250 | /* There are 2 variations for LONGJUMP5 | |
11251 | case 2-4; 1st insn convertible, 16-bit on. | |
11252 | movi55 ta, imm11 ; LONGJUMP7/INSN16 | |
11253 | beq rt, ta, label ; 15_PCREL | |
11254 | ||
11255 | case 4-4; 1st insn not convertible | |
11256 | movi55 ta, imm11 ; LONGJUMP7/INSN16 | |
11257 | beq rt, ta, label ; 15_PCREL */ | |
11258 | ||
11259 | bfd_vma laddr; | |
11260 | Elf_Internal_Rela *cond_irel, *irelend, *insn_irel; | |
1c8f6a4d KLC |
11261 | bfd_signed_vma foff; |
11262 | uint32_t insn, re_insn = 0; | |
11263 | uint16_t insn16; | |
11264 | uint32_t imm11; | |
35c08157 | 11265 | |
1c8f6a4d KLC |
11266 | irelend = internal_relocs + sec->reloc_count; |
11267 | laddr = irel->r_offset; | |
35c08157 | 11268 | |
1c8f6a4d KLC |
11269 | /* Get the reloc for the address from which the register is |
11270 | being loaded. This reloc will tell us which function is | |
11271 | actually being called. */ | |
35c08157 | 11272 | |
1c8f6a4d KLC |
11273 | cond_irel = |
11274 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11275 | R_NDS32_15_PCREL_RELA, irel->r_addend); | |
11276 | if (cond_irel == irelend) | |
11277 | { | |
695344c0 | 11278 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP7", |
2dcf00ce | 11279 | (uint64_t) irel->r_offset); |
0a1b45a2 | 11280 | return false; |
1c8f6a4d | 11281 | } |
35c08157 | 11282 | |
1c8f6a4d | 11283 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 11284 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr); |
35c08157 | 11285 | |
fbaf61ad NC |
11286 | if (foff == 0 |
11287 | || foff < -CONSERVATIVE_8BIT_S1 | |
1c8f6a4d | 11288 | || foff >= CONSERVATIVE_8BIT_S1) |
0a1b45a2 | 11289 | return false; |
35c08157 | 11290 | |
1c8f6a4d KLC |
11291 | /* Get the first instruction for its size. */ |
11292 | insn = bfd_getb32 (contents + laddr); | |
11293 | if (insn & 0x80000000) | |
11294 | { | |
11295 | *seq_len = 0; | |
11296 | /* Get the immediate from movi55. */ | |
11297 | imm11 = N16_IMM5S (insn >> 16); | |
11298 | } | |
11299 | else | |
11300 | { | |
11301 | /* Get the immediate from movi. */ | |
11302 | imm11 = N32_IMM20S (insn); | |
35c08157 KLC |
11303 | } |
11304 | ||
1c8f6a4d KLC |
11305 | /* Get the branch instruction. */ |
11306 | insn = bfd_getb32 (contents + irel->r_addend); | |
11307 | /* Convert instruction to BR3. */ | |
11308 | if ((insn >> 14) & 0x1) | |
11309 | re_insn = N32_BR3 (BNEC, N32_RT5 (insn), imm11, 0); | |
11310 | else | |
11311 | re_insn = N32_BR3 (BEQC, N32_RT5 (insn), imm11, 0); | |
35c08157 | 11312 | |
1c8f6a4d | 11313 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); |
35c08157 | 11314 | |
1c8f6a4d KLC |
11315 | /* Set all relocations. */ |
11316 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
11317 | R_NDS32_WORD_9_PCREL_RELA); | |
11318 | ||
11319 | /* Clean relocations. */ | |
11320 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
11321 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11322 | R_NDS32_INSN16, irel->r_offset); | |
11323 | if (insn_irel != irelend) | |
11324 | { | |
11325 | if (*seq_len == 0) | |
35c08157 | 11326 | { |
1c8f6a4d KLC |
11327 | /* If the first insntruction is 16bit, convert it to nop16. */ |
11328 | insn16 = NDS32_NOP16; | |
11329 | bfd_putb16 (insn16, contents + laddr); | |
11330 | insn_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
35c08157 | 11331 | } |
1c8f6a4d KLC |
11332 | else |
11333 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
11334 | R_NDS32_NONE); | |
35c08157 | 11335 | } |
1c8f6a4d | 11336 | *insn_len = 0; |
35c08157 | 11337 | |
0a1b45a2 | 11338 | return true; |
1c8f6a4d | 11339 | } |
35c08157 | 11340 | |
fbaf61ad NC |
11341 | /* We figure out and reassign the best gp value in nds32_elf_final_sda_base |
11342 | for each relax round. But the gp may changed dramatically and then cause | |
11343 | the truncated to fit errors for the the converted gp instructions. | |
11344 | Therefore, we must reserve the minimum but safe enough size to prevent it. */ | |
11345 | ||
0a1b45a2 | 11346 | static bool |
fbaf61ad | 11347 | nds32_elf_relax_guard (bfd_vma *access_addr, bfd_vma local_sda, asection *sec, |
0a1b45a2 AM |
11348 | Elf_Internal_Rela *irel, bool *again, |
11349 | bool init, | |
fbaf61ad NC |
11350 | struct elf_nds32_link_hash_table *table, |
11351 | Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr) | |
11352 | ||
11353 | { | |
11354 | int offset_to_gp; | |
0a1b45a2 | 11355 | static bool sec_pass = false; |
fbaf61ad NC |
11356 | static asection *first_sec = NULL, *sym_sec; |
11357 | /* Record the number of instructions which may be removed. */ | |
11358 | static int count = 0, record_count; | |
11359 | Elf_Internal_Sym *isym; | |
11360 | struct elf_link_hash_entry *h = NULL; | |
11361 | int indx; | |
11362 | unsigned long r_symndx; | |
11363 | bfd *abfd = sec->owner; | |
11364 | static bfd_vma record_sda = 0; | |
11365 | int sda_offset = 0; | |
11366 | ||
11367 | /* Force doing relaxation when hyper-relax is high. */ | |
11368 | if (table->hyper_relax == 2) | |
0a1b45a2 | 11369 | return true; |
fbaf61ad NC |
11370 | |
11371 | /* Do not relax the load/store patterns for the first | |
11372 | relax round. */ | |
11373 | if (init) | |
11374 | { | |
11375 | if (!first_sec) | |
11376 | first_sec = sec; | |
11377 | else if (first_sec == sec) | |
11378 | { | |
11379 | record_count = count; | |
11380 | count = 0; | |
0a1b45a2 | 11381 | sec_pass = true; |
fbaf61ad NC |
11382 | } |
11383 | ||
11384 | if (!sec_pass) | |
0a1b45a2 | 11385 | *again = true; |
fbaf61ad | 11386 | |
0a1b45a2 | 11387 | return true; |
fbaf61ad NC |
11388 | } |
11389 | ||
11390 | /* Generally, _SDA_BASE_ is fixed or smaller. But the large | |
11391 | DATA_SEGMENT_ALIGN size in the linker script may make it | |
11392 | get even bigger. */ | |
11393 | if (record_sda == 0) | |
11394 | record_sda = local_sda; | |
11395 | else if (local_sda > record_sda) | |
11396 | sda_offset = local_sda - record_sda; | |
11397 | ||
11398 | /* Assume the instruction will be removed in the best case. */ | |
11399 | count++; | |
11400 | ||
11401 | /* We record the offset to gp for each symbol, and then check | |
11402 | if it is changed dramatically after relaxing. | |
11403 | (global symbol): elf32_nds32_hash_entry (h)->offset_to_gp | |
11404 | (local symbol) : elf32_nds32_local_gp_offset (abfd)[r_symndx]. */ | |
11405 | r_symndx = ELF32_R_SYM (irel->r_info); | |
11406 | if (r_symndx >= symtab_hdr->sh_info) | |
11407 | { | |
11408 | /* Global symbols. */ | |
11409 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
11410 | h = elf_sym_hashes (abfd)[indx]; | |
11411 | sym_sec = h->root.u.def.section; | |
11412 | if (NDS32_GUARD_SEC_P (sym_sec->flags) | |
11413 | || bfd_is_abs_section (sym_sec)) | |
11414 | { | |
11415 | /* Forbid doing relaxation when hyper-relax is low. */ | |
11416 | if (table->hyper_relax == 0) | |
0a1b45a2 | 11417 | return false; |
fbaf61ad NC |
11418 | |
11419 | offset_to_gp = *access_addr - local_sda; | |
11420 | if (elf32_nds32_hash_entry (h)->offset_to_gp == 0) | |
11421 | elf32_nds32_hash_entry (h)->offset_to_gp = offset_to_gp; | |
11422 | else if (abs (elf32_nds32_hash_entry (h)->offset_to_gp) | |
11423 | < abs (offset_to_gp) - sda_offset) | |
11424 | { | |
11425 | /* This may cause the error, so we reserve the | |
11426 | safe enough size for relaxing. */ | |
11427 | if (*access_addr >= local_sda) | |
11428 | *access_addr += (record_count * 4); | |
11429 | else | |
11430 | *access_addr -= (record_count * 4); | |
11431 | } | |
11432 | return sec_pass; | |
11433 | } | |
11434 | } | |
11435 | else | |
11436 | { | |
11437 | /* Local symbols. */ | |
11438 | if (!elf32_nds32_allocate_local_sym_info (abfd)) | |
0a1b45a2 | 11439 | return false; |
fbaf61ad NC |
11440 | isym = isymbuf + r_symndx; |
11441 | ||
11442 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
11443 | if (NDS32_GUARD_SEC_P (sym_sec->flags)) | |
11444 | { | |
11445 | /* Forbid doing relaxation when hyper-relax is low. */ | |
11446 | if (table->hyper_relax == 0) | |
0a1b45a2 | 11447 | return false; |
fbaf61ad NC |
11448 | |
11449 | offset_to_gp = *access_addr - local_sda; | |
11450 | if (elf32_nds32_local_gp_offset (abfd)[r_symndx] == 0) | |
11451 | elf32_nds32_local_gp_offset (abfd)[r_symndx] = offset_to_gp; | |
11452 | else if (abs (elf32_nds32_local_gp_offset (abfd)[r_symndx]) | |
11453 | < abs (offset_to_gp) - sda_offset) | |
11454 | { | |
11455 | /* This may cause the error, so we reserve the | |
11456 | safe enough size for relaxing. */ | |
11457 | if (*access_addr >= local_sda) | |
11458 | *access_addr += (record_count * 4); | |
11459 | else | |
11460 | *access_addr -= (record_count * 4); | |
11461 | } | |
11462 | return sec_pass; | |
11463 | } | |
11464 | } | |
11465 | ||
0a1b45a2 | 11466 | return true; |
fbaf61ad NC |
11467 | } |
11468 | ||
1c8f6a4d | 11469 | #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f) |
35c08157 | 11470 | |
1c8f6a4d | 11471 | /* Relax LOADSTORE relocation for nds32_elf_relax_section. */ |
35c08157 | 11472 | |
0a1b45a2 | 11473 | static bool |
1c8f6a4d KLC |
11474 | nds32_elf_relax_loadstore (struct bfd_link_info *link_info, bfd *abfd, |
11475 | asection *sec, Elf_Internal_Rela *irel, | |
11476 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11477 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
fbaf61ad NC |
11478 | Elf_Internal_Shdr *symtab_hdr, int load_store_relax, |
11479 | struct elf_nds32_link_hash_table *table) | |
1c8f6a4d | 11480 | { |
6cae483a AM |
11481 | int eliminate_sethi = 0, range_type; |
11482 | unsigned int i; | |
1c8f6a4d KLC |
11483 | bfd_vma local_sda, laddr; |
11484 | int seq_len; /* Original length of instruction sequence. */ | |
11485 | uint32_t insn; | |
11486 | Elf_Internal_Rela *hi_irelfn = NULL, *irelend; | |
11487 | bfd_vma access_addr = 0; | |
11488 | bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */ | |
fbaf61ad NC |
11489 | struct elf_link_hash_entry *h = NULL; |
11490 | int indx; | |
1c8f6a4d KLC |
11491 | enum elf_nds32_reloc_type checked_types[] = |
11492 | { R_NDS32_HI20_RELA, R_NDS32_GOT_HI20, | |
11493 | R_NDS32_GOTPC_HI20, R_NDS32_GOTOFF_HI20, | |
11494 | R_NDS32_PLTREL_HI20, R_NDS32_PLT_GOTREL_HI20, | |
11495 | R_NDS32_TLS_LE_HI20 | |
11496 | }; | |
35c08157 | 11497 | |
1c8f6a4d KLC |
11498 | irelend = internal_relocs + sec->reloc_count; |
11499 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
11500 | laddr = irel->r_offset; | |
11501 | *insn_len = seq_len; | |
35c08157 | 11502 | |
1c8f6a4d | 11503 | /* Get the high part relocation. */ |
6cae483a | 11504 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
11505 | { |
11506 | hi_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11507 | checked_types[i], laddr); | |
11508 | if (hi_irelfn != irelend) | |
11509 | break; | |
11510 | } | |
35c08157 | 11511 | |
1c8f6a4d KLC |
11512 | if (hi_irelfn == irelend) |
11513 | { | |
fbaf61ad NC |
11514 | /* Not R_NDS32_HI20_RELA. */ |
11515 | if (i != 0) | |
11516 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LOADSTORE", | |
11517 | (uint64_t) irel->r_offset); | |
0a1b45a2 | 11518 | return false; |
1c8f6a4d | 11519 | } |
35c08157 | 11520 | |
1c8f6a4d KLC |
11521 | range_type = GET_LOADSTORE_RANGE (irel->r_addend); |
11522 | nds32_elf_final_sda_base (sec->output_section->owner, | |
0a1b45a2 | 11523 | link_info, &local_sda, false); |
35c08157 | 11524 | |
1c8f6a4d KLC |
11525 | switch (ELF32_R_TYPE (hi_irelfn->r_info)) |
11526 | { | |
11527 | case R_NDS32_HI20_RELA: | |
11528 | insn = bfd_getb32 (contents + laddr); | |
11529 | access_addr = | |
11530 | calculate_memory_address (abfd, hi_irelfn, isymbuf, symtab_hdr); | |
11531 | ||
fbaf61ad | 11532 | if (ELF32_R_SYM (hi_irelfn->r_info) >= symtab_hdr->sh_info) |
1c8f6a4d | 11533 | { |
fbaf61ad NC |
11534 | indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info; |
11535 | h = elf_sym_hashes (abfd)[indx]; | |
11536 | } | |
35c08157 | 11537 | |
fbaf61ad NC |
11538 | /* Try movi. */ |
11539 | if (range_type == NDS32_LOADSTORE_IMM | |
11540 | && access_addr < CONSERVATIVE_20BIT | |
11541 | && (!h || (h && strcmp (h->root.root.string, FP_BASE_NAME) != 0))) | |
11542 | { | |
11543 | eliminate_sethi = 1; | |
11544 | break; | |
11545 | } | |
1c8f6a4d | 11546 | |
fbaf61ad NC |
11547 | if (h && strcmp (h->root.root.string, FP_BASE_NAME) == 0) |
11548 | { | |
11549 | eliminate_sethi = 1; | |
11550 | break; | |
1c8f6a4d | 11551 | } |
fbaf61ad | 11552 | else if (!nds32_elf_relax_guard (&access_addr, local_sda, sec, hi_irelfn, |
0a1b45a2 AM |
11553 | NULL, false, table, isymbuf, symtab_hdr)) |
11554 | return false; | |
1c8f6a4d KLC |
11555 | |
11556 | if (!load_store_relax) | |
0a1b45a2 | 11557 | return false; |
1c8f6a4d KLC |
11558 | |
11559 | /* Case for set gp register. */ | |
11560 | if (N32_RT5 (insn) == REG_GP) | |
0a1b45a2 | 11561 | return false; |
1c8f6a4d KLC |
11562 | |
11563 | if (range_type == NDS32_LOADSTORE_FLOAT_S | |
6cef73f9 | 11564 | || range_type == NDS32_LOADSTORE_FLOAT_D) |
1c8f6a4d KLC |
11565 | { |
11566 | range_l = sdata_range[0][0]; | |
11567 | range_h = sdata_range[0][1]; | |
11568 | } | |
11569 | else | |
11570 | { | |
11571 | range_l = sdata_range[1][0]; | |
11572 | range_h = sdata_range[1][1]; | |
11573 | } | |
11574 | break; | |
11575 | ||
1c8f6a4d | 11576 | default: |
0a1b45a2 | 11577 | return false; |
1c8f6a4d KLC |
11578 | } |
11579 | ||
11580 | /* Delete sethi instruction. */ | |
11581 | if (eliminate_sethi == 1 | |
11582 | || (local_sda <= access_addr && (access_addr - local_sda) < range_h) | |
11583 | || (local_sda > access_addr && (local_sda - access_addr) <= range_l)) | |
11584 | { | |
11585 | hi_irelfn->r_info = | |
11586 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
11587 | irel->r_info = | |
11588 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
11589 | *insn_len = 0; | |
0a1b45a2 | 11590 | return true; |
1c8f6a4d | 11591 | } |
fbaf61ad | 11592 | |
0a1b45a2 | 11593 | return false; |
1c8f6a4d KLC |
11594 | } |
11595 | ||
11596 | /* Relax LO12 relocation for nds32_elf_relax_section. */ | |
11597 | ||
11598 | static void | |
11599 | nds32_elf_relax_lo12 (struct bfd_link_info *link_info, bfd *abfd, | |
11600 | asection *sec, Elf_Internal_Rela *irel, | |
11601 | Elf_Internal_Rela *internal_relocs, bfd_byte *contents, | |
fbaf61ad NC |
11602 | Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr, |
11603 | struct elf_nds32_link_hash_table *table) | |
1c8f6a4d KLC |
11604 | { |
11605 | uint32_t insn; | |
11606 | bfd_vma local_sda, laddr; | |
11607 | unsigned long reloc; | |
11608 | bfd_vma access_addr; | |
11609 | bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */ | |
11610 | Elf_Internal_Rela *irelfn = NULL, *irelend; | |
11611 | struct elf_link_hash_entry *h = NULL; | |
11612 | int indx; | |
11613 | ||
11614 | /* For SDA base relative relaxation. */ | |
11615 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
0a1b45a2 | 11616 | &local_sda, false); |
1c8f6a4d KLC |
11617 | |
11618 | irelend = internal_relocs + sec->reloc_count; | |
11619 | laddr = irel->r_offset; | |
11620 | insn = bfd_getb32 (contents + laddr); | |
11621 | ||
11622 | if (!is_sda_access_insn (insn) && N32_OP6 (insn) != N32_OP6_ORI) | |
11623 | return; | |
11624 | ||
11625 | access_addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
11626 | ||
11627 | if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info) | |
11628 | { | |
11629 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
11630 | h = elf_sym_hashes (abfd)[indx]; | |
11631 | } | |
11632 | ||
fbaf61ad | 11633 | /* Try movi. */ |
1c8f6a4d KLC |
11634 | if (N32_OP6 (insn) == N32_OP6_ORI && access_addr < CONSERVATIVE_20BIT |
11635 | && (!h || (h && strcmp (h->root.root.string, FP_BASE_NAME) != 0))) | |
11636 | { | |
11637 | reloc = R_NDS32_20_RELA; | |
11638 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
11639 | insn = N32_TYPE1 (MOVI, N32_RT5 (insn), 0); | |
11640 | bfd_putb32 (insn, contents + laddr); | |
11641 | } | |
1c8f6a4d KLC |
11642 | else |
11643 | { | |
fbaf61ad NC |
11644 | if (h && strcmp (h->root.root.string, FP_BASE_NAME) == 0) |
11645 | { | |
11646 | /* Fall through. */ | |
11647 | } | |
11648 | else if (!nds32_elf_relax_guard (&access_addr, local_sda, sec, irel, NULL, | |
0a1b45a2 | 11649 | false, table, isymbuf, symtab_hdr)) |
fbaf61ad NC |
11650 | return; |
11651 | ||
1c8f6a4d KLC |
11652 | range_l = sdata_range[1][0]; |
11653 | range_h = sdata_range[1][1]; | |
11654 | switch (ELF32_R_TYPE (irel->r_info)) | |
11655 | { | |
11656 | case R_NDS32_LO12S0_RELA: | |
11657 | reloc = R_NDS32_SDA19S0_RELA; | |
11658 | break; | |
11659 | case R_NDS32_LO12S1_RELA: | |
11660 | reloc = R_NDS32_SDA18S1_RELA; | |
11661 | break; | |
11662 | case R_NDS32_LO12S2_RELA: | |
11663 | reloc = R_NDS32_SDA17S2_RELA; | |
11664 | break; | |
11665 | case R_NDS32_LO12S2_DP_RELA: | |
11666 | range_l = sdata_range[0][0]; | |
11667 | range_h = sdata_range[0][1]; | |
11668 | reloc = R_NDS32_SDA12S2_DP_RELA; | |
11669 | break; | |
11670 | case R_NDS32_LO12S2_SP_RELA: | |
11671 | range_l = sdata_range[0][0]; | |
11672 | range_h = sdata_range[0][1]; | |
11673 | reloc = R_NDS32_SDA12S2_SP_RELA; | |
11674 | break; | |
11675 | default: | |
11676 | return; | |
11677 | } | |
11678 | ||
11679 | /* There are range_h and range_l because linker has to promise | |
11680 | all sections move cross one page together. */ | |
11681 | if ((local_sda <= access_addr && (access_addr - local_sda) < range_h) | |
fbaf61ad NC |
11682 | || (local_sda > access_addr && (local_sda - access_addr) <= range_l) |
11683 | || (h && strcmp (h->root.root.string, FP_BASE_NAME) == 0)) | |
1c8f6a4d KLC |
11684 | { |
11685 | if (N32_OP6 (insn) == N32_OP6_ORI && N32_RT5 (insn) == REG_GP) | |
35c08157 | 11686 | { |
1c8f6a4d KLC |
11687 | /* Maybe we should add R_NDS32_INSN16 reloc type here |
11688 | or manually do some optimization. sethi can't be | |
11689 | eliminated when updating $gp so the relative ori | |
11690 | needs to be preserved. */ | |
11691 | return; | |
35c08157 | 11692 | } |
1c8f6a4d KLC |
11693 | if (!turn_insn_to_sda_access (insn, ELF32_R_TYPE (irel->r_info), |
11694 | &insn)) | |
11695 | return; | |
11696 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
11697 | bfd_putb32 (insn, contents + laddr); | |
11698 | ||
11699 | irelfn = find_relocs_at_address (irel, internal_relocs, irelend, | |
11700 | R_NDS32_INSN16); | |
11701 | /* SDA17 must keep INSN16 for converting fp_as_gp. */ | |
11702 | if (irelfn != irelend && reloc != R_NDS32_SDA17S2_RELA) | |
11703 | irelfn->r_info = | |
11704 | ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_NDS32_NONE); | |
11705 | ||
35c08157 | 11706 | } |
1c8f6a4d KLC |
11707 | } |
11708 | return; | |
11709 | } | |
35c08157 | 11710 | |
1c8f6a4d | 11711 | /* Relax PTR relocation for nds32_elf_relax_section. */ |
35c08157 | 11712 | |
0a1b45a2 | 11713 | static bool |
1c8f6a4d KLC |
11714 | nds32_elf_relax_ptr (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
11715 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11716 | int *seq_len, bfd_byte *contents) | |
11717 | { | |
11718 | Elf_Internal_Rela *ptr_irel, *irelend, *count_irel, *re_irel; | |
35c08157 | 11719 | |
1c8f6a4d | 11720 | irelend = internal_relocs + sec->reloc_count; |
35c08157 | 11721 | |
1c8f6a4d KLC |
11722 | re_irel = |
11723 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11724 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
35c08157 | 11725 | |
1c8f6a4d KLC |
11726 | if (re_irel == irelend) |
11727 | { | |
695344c0 | 11728 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_PTR", |
2dcf00ce | 11729 | (uint64_t) irel->r_offset); |
0a1b45a2 | 11730 | return false; |
1c8f6a4d | 11731 | } |
35c08157 | 11732 | |
1c8f6a4d | 11733 | if (re_irel->r_addend != 1) |
0a1b45a2 | 11734 | return false; |
35c08157 | 11735 | |
1c8f6a4d KLC |
11736 | /* Pointed target is relaxed and no longer needs this void *, |
11737 | change the type to NONE. */ | |
11738 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 11739 | |
1c8f6a4d KLC |
11740 | /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does |
11741 | not exist, it means only count 1 and remove it directly. */ | |
11742 | /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */ | |
11743 | count_irel = find_relocs_at_address (irel, internal_relocs, irelend, | |
11744 | R_NDS32_PTR_COUNT); | |
11745 | ptr_irel = find_relocs_at_address (irel, internal_relocs, irelend, | |
11746 | R_NDS32_PTR); | |
11747 | if (count_irel != irelend) | |
11748 | { | |
11749 | if (--count_irel->r_addend > 0) | |
0a1b45a2 | 11750 | return false; |
1c8f6a4d KLC |
11751 | } |
11752 | ||
11753 | if (ptr_irel != irelend) | |
0a1b45a2 | 11754 | return false; |
1c8f6a4d KLC |
11755 | |
11756 | /* If the PTR_COUNT is already 0, remove current instruction. */ | |
11757 | *seq_len = nds32_elf_insn_size (abfd, contents, irel->r_offset); | |
11758 | *insn_len = 0; | |
0a1b45a2 | 11759 | return true; |
1c8f6a4d KLC |
11760 | } |
11761 | ||
fbaf61ad | 11762 | /* Relax LWC relocation for nds32_elf_relax_section. */ |
1c8f6a4d KLC |
11763 | |
11764 | static void | |
fbaf61ad NC |
11765 | nds32_elf_relax_flsi (struct bfd_link_info *link_info, bfd *abfd, |
11766 | asection *sec, Elf_Internal_Rela *irel, | |
11767 | Elf_Internal_Rela *internal_relocs, | |
11768 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
0a1b45a2 | 11769 | Elf_Internal_Shdr *symtab_hdr, bool *again) |
1c8f6a4d | 11770 | { |
fbaf61ad NC |
11771 | /* Pattern: |
11772 | sethi ra, hi20(symbol) ; HI20/LOADSTORE | |
11773 | ori ra, ra, lo12(symbol) ; LO12S0/PTR/PTR/.../INSN16 | |
11774 | flsi fsa, [ra + offset1] ; LSI/PTR_RESOLVED/INSN16 | |
11775 | flsi fsb, [ra + offset2] ; LSI/PTR_RESOLVED/INSN16 | |
11776 | ... */ | |
11777 | ||
1c8f6a4d | 11778 | uint32_t insn; |
1c8f6a4d | 11779 | bfd_vma local_sda, laddr; |
fbaf61ad NC |
11780 | unsigned long reloc; |
11781 | bfd_vma access_addr, flsi_offset; | |
11782 | bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */ | |
11783 | Elf_Internal_Rela *irelend, *re_irel; | |
11784 | unsigned int opcode; | |
1c8f6a4d KLC |
11785 | |
11786 | irelend = internal_relocs + sec->reloc_count; | |
11787 | laddr = irel->r_offset; | |
11788 | insn = bfd_getb32 (contents + laddr); | |
11789 | ||
fbaf61ad | 11790 | if ((insn & 0x80000000) || !is_sda_access_insn (insn)) |
1c8f6a4d KLC |
11791 | return; |
11792 | ||
fbaf61ad NC |
11793 | /* Can not do relaxation for bi format. */ |
11794 | if ((insn & 0x1000)) | |
1c8f6a4d KLC |
11795 | return; |
11796 | ||
fbaf61ad NC |
11797 | /* Only deal with flsi, fssi, fldi, fsdi, so far. */ |
11798 | opcode = N32_OP6 (insn); | |
11799 | if ((opcode == N32_OP6_LWC) || (opcode == N32_OP6_SWC)) | |
11800 | reloc = R_NDS32_SDA12S2_SP_RELA; | |
11801 | else if ((opcode == N32_OP6_LDC) || (opcode == N32_OP6_SDC)) | |
11802 | reloc = R_NDS32_SDA12S2_DP_RELA; | |
1c8f6a4d KLC |
11803 | else |
11804 | return; | |
11805 | ||
fbaf61ad NC |
11806 | re_irel = find_relocs_at_address (irel, internal_relocs, irelend, |
11807 | R_NDS32_PTR_RESOLVED); | |
11808 | if (re_irel == irelend) | |
1c8f6a4d | 11809 | { |
fbaf61ad NC |
11810 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LSI", |
11811 | (uint64_t) irel->r_offset); | |
11812 | return; | |
1c8f6a4d | 11813 | } |
1c8f6a4d | 11814 | |
fbaf61ad | 11815 | /* For SDA base relative relaxation. */ |
1c8f6a4d | 11816 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, |
0a1b45a2 | 11817 | &local_sda, false); |
fbaf61ad NC |
11818 | access_addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); |
11819 | flsi_offset = (insn & 0xfff) << 2; | |
11820 | access_addr += flsi_offset; | |
11821 | range_l = sdata_range[0][0]; | |
11822 | range_h = sdata_range[0][1]; | |
1c8f6a4d | 11823 | |
fbaf61ad NC |
11824 | if ((local_sda <= access_addr && (access_addr - local_sda) < range_h) |
11825 | || (local_sda > access_addr && (local_sda - access_addr) <= range_l)) | |
1c8f6a4d | 11826 | { |
fbaf61ad NC |
11827 | /* Turn flsi instruction into sda access format. */ |
11828 | insn = (insn & 0x7ff07000) | (REG_GP << 15); | |
1c8f6a4d | 11829 | |
fbaf61ad NC |
11830 | /* Add relocation type to flsi. */ |
11831 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
11832 | irel->r_addend += flsi_offset; | |
11833 | bfd_putb32 (insn, contents + re_irel->r_offset); | |
1c8f6a4d | 11834 | |
fbaf61ad | 11835 | re_irel->r_addend |= 1; |
0a1b45a2 | 11836 | *again = true; |
1c8f6a4d | 11837 | } |
1c8f6a4d KLC |
11838 | } |
11839 | ||
0a1b45a2 | 11840 | static bool |
1c8f6a4d KLC |
11841 | nds32_relax_adjust_label (bfd *abfd, asection *sec, |
11842 | Elf_Internal_Rela *internal_relocs, | |
11843 | bfd_byte *contents, | |
11844 | nds32_elf_blank_t **relax_blank_list, | |
11845 | int optimize, int opt_size) | |
11846 | { | |
11847 | /* This code block is used to adjust 4-byte alignment by relax a pair | |
11848 | of instruction a time. | |
11849 | ||
11850 | It recognizes three types of relocations. | |
de194d85 | 11851 | 1. R_NDS32_LABEL - a alignment. |
1c8f6a4d KLC |
11852 | 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit. |
11853 | 3. is_16bit_NOP () - remove a 16-bit instruction. */ | |
11854 | ||
de194d85 YC |
11855 | /* TODO: It seems currently implementation only support 4-byte alignment. |
11856 | We should handle any-alignment. */ | |
1c8f6a4d KLC |
11857 | |
11858 | Elf_Internal_Rela *insn_rel = NULL, *label_rel = NULL, *irel; | |
11859 | Elf_Internal_Rela *tmp_rel, *tmp2_rel = NULL; | |
11860 | Elf_Internal_Rela rel_temp; | |
11861 | Elf_Internal_Rela *irelend; | |
11862 | bfd_vma address; | |
11863 | uint16_t insn16; | |
11864 | ||
11865 | /* Checking for branch relaxation relies on the relocations to | |
11866 | be sorted on 'r_offset'. This is not guaranteed so we must sort. */ | |
11867 | nds32_insertion_sort (internal_relocs, sec->reloc_count, | |
11868 | sizeof (Elf_Internal_Rela), compar_reloc); | |
11869 | ||
11870 | irelend = internal_relocs + sec->reloc_count; | |
11871 | ||
11872 | /* Force R_NDS32_LABEL before R_NDS32_INSN16. */ | |
11873 | /* FIXME: Can we generate the right order in assembler? | |
11874 | So we don't have to swapping them here. */ | |
11875 | ||
11876 | for (label_rel = internal_relocs, insn_rel = internal_relocs; | |
11877 | label_rel < irelend; label_rel++) | |
11878 | { | |
11879 | if (ELF32_R_TYPE (label_rel->r_info) != R_NDS32_LABEL) | |
11880 | continue; | |
11881 | ||
11882 | /* Find the first reloc has the same offset with label_rel. */ | |
11883 | while (insn_rel < irelend && insn_rel->r_offset < label_rel->r_offset) | |
11884 | insn_rel++; | |
11885 | ||
11886 | for (;insn_rel < irelend && insn_rel->r_offset == label_rel->r_offset; | |
11887 | insn_rel++) | |
11888 | /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same | |
11889 | address. */ | |
11890 | if (ELF32_R_TYPE (insn_rel->r_info) == R_NDS32_INSN16) | |
11891 | break; | |
11892 | ||
11893 | if (insn_rel < irelend && insn_rel->r_offset == label_rel->r_offset | |
11894 | && insn_rel < label_rel) | |
11895 | { | |
11896 | /* Swap the two reloc if the R_NDS32_INSN16 is | |
11897 | before R_NDS32_LABEL. */ | |
11898 | memcpy (&rel_temp, insn_rel, sizeof (Elf_Internal_Rela)); | |
11899 | memcpy (insn_rel, label_rel, sizeof (Elf_Internal_Rela)); | |
11900 | memcpy (label_rel, &rel_temp, sizeof (Elf_Internal_Rela)); | |
11901 | } | |
11902 | } | |
11903 | ||
11904 | label_rel = NULL; | |
11905 | insn_rel = NULL; | |
11906 | /* If there were a sequence of R_NDS32_LABEL end up with .align 2 | |
11907 | or higher, remove other R_NDS32_LABEL with lower alignment. | |
11908 | If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted, | |
11909 | then the R_NDS32_LABEL sequence is broke. */ | |
11910 | for (tmp_rel = internal_relocs; tmp_rel < irelend; tmp_rel++) | |
11911 | { | |
11912 | if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_LABEL) | |
11913 | { | |
11914 | if (label_rel == NULL) | |
11915 | { | |
11916 | if (tmp_rel->r_addend < 2) | |
11917 | label_rel = tmp_rel; | |
11918 | continue; | |
11919 | } | |
11920 | else if (tmp_rel->r_addend > 1) | |
11921 | { | |
11922 | /* Remove all LABEL relocation from label_rel to tmp_rel | |
11923 | including relocations with same offset as tmp_rel. */ | |
fbaf61ad | 11924 | for (tmp2_rel = label_rel; tmp2_rel < tmp_rel; tmp2_rel++) |
1c8f6a4d | 11925 | { |
fbaf61ad NC |
11926 | if (tmp2_rel->r_offset == tmp_rel->r_offset) |
11927 | break; | |
11928 | ||
1c8f6a4d KLC |
11929 | if (ELF32_R_TYPE (tmp2_rel->r_info) == R_NDS32_LABEL |
11930 | && tmp2_rel->r_addend < 2) | |
11931 | tmp2_rel->r_info = | |
11932 | ELF32_R_INFO (ELF32_R_SYM (tmp2_rel->r_info), | |
11933 | R_NDS32_NONE); | |
11934 | } | |
11935 | label_rel = NULL; | |
11936 | } | |
11937 | } | |
11938 | else if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_INSN16 && label_rel) | |
11939 | { | |
11940 | /* A new INSN16 which can be converted, so clear label_rel. */ | |
11941 | if (is_convert_32_to_16 (abfd, sec, tmp_rel, internal_relocs, | |
11942 | irelend, &insn16) | |
11943 | || is_16bit_NOP (abfd, sec, tmp_rel)) | |
11944 | label_rel = NULL; | |
11945 | } | |
11946 | } | |
11947 | ||
11948 | label_rel = NULL; | |
11949 | insn_rel = NULL; | |
11950 | /* Optimized for speed and nothing has not been relaxed. | |
11951 | It's time to align labels. | |
11952 | We may convert a 16-bit instruction right before a label to | |
11953 | 32-bit, in order to align the label if necessary | |
11954 | all reloc entries has been sorted by r_offset. */ | |
fbaf61ad NC |
11955 | for (irel = internal_relocs; |
11956 | irel < irelend && irel->r_offset < sec->size; irel++) | |
1c8f6a4d KLC |
11957 | { |
11958 | if (ELF32_R_TYPE (irel->r_info) != R_NDS32_INSN16 | |
11959 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_LABEL) | |
11960 | continue; | |
11961 | ||
11962 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_INSN16) | |
11963 | { | |
11964 | /* A new INSN16 found, resize the old one. */ | |
11965 | if (is_convert_32_to_16 | |
11966 | (abfd, sec, irel, internal_relocs, irelend, &insn16) | |
11967 | || is_16bit_NOP (abfd, sec, irel)) | |
11968 | { | |
11969 | if (insn_rel) | |
11970 | { | |
11971 | /* Previous INSN16 reloc exists, reduce its | |
11972 | size to 16-bit. */ | |
11973 | if (is_convert_32_to_16 (abfd, sec, insn_rel, internal_relocs, | |
11974 | irelend, &insn16)) | |
35c08157 | 11975 | { |
1c8f6a4d KLC |
11976 | nds32_elf_write_16 (abfd, contents, insn_rel, |
11977 | internal_relocs, irelend, insn16); | |
11978 | ||
11979 | if (!insert_nds32_elf_blank_recalc_total | |
11980 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
0a1b45a2 | 11981 | return false; |
1c8f6a4d KLC |
11982 | } |
11983 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
11984 | { | |
11985 | if (!insert_nds32_elf_blank_recalc_total | |
11986 | (relax_blank_list, insn_rel->r_offset, 2)) | |
0a1b45a2 | 11987 | return false; |
1c8f6a4d KLC |
11988 | } |
11989 | insn_rel->r_info = | |
11990 | ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), R_NDS32_NONE); | |
11991 | } | |
11992 | /* Save the new one for later use. */ | |
11993 | insn_rel = irel; | |
11994 | } | |
11995 | else | |
11996 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
11997 | R_NDS32_NONE); | |
11998 | } | |
11999 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL) | |
12000 | { | |
12001 | /* Search for label. */ | |
12002 | int force_relax = 0; | |
12003 | ||
12004 | /* Label on 16-bit instruction or optimization | |
12005 | needless, just reset this reloc. */ | |
12006 | insn16 = bfd_getb16 (contents + irel->r_offset); | |
12007 | if ((irel->r_addend & 0x1f) < 2 && (!optimize || (insn16 & 0x8000))) | |
12008 | { | |
12009 | irel->r_info = | |
12010 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
12011 | continue; | |
12012 | } | |
12013 | ||
12014 | address = | |
12015 | irel->r_offset - get_nds32_elf_blank_total (relax_blank_list, | |
12016 | irel->r_offset, 1); | |
12017 | ||
12018 | if (!insn_rel) | |
12019 | { | |
12020 | /* Check if there is case which can not be aligned. */ | |
12021 | if (irel->r_addend == 2 && address & 0x2) | |
0a1b45a2 | 12022 | return false; |
1c8f6a4d KLC |
12023 | continue; |
12024 | } | |
12025 | ||
12026 | /* Try to align this label. */ | |
12027 | ||
12028 | if ((irel->r_addend & 0x1f) < 2) | |
12029 | { | |
12030 | /* Check if there is a INSN16 at the same address. | |
12031 | Label_rel always seats before insn_rel after | |
12032 | our sort. */ | |
12033 | ||
12034 | /* Search for INSN16 at LABEL location. If INSN16 is at | |
12035 | same location and this LABEL alignment is lower than 2, | |
12036 | the INSN16 can be converted to 2-byte. */ | |
12037 | for (tmp_rel = irel; | |
12038 | tmp_rel < irelend && tmp_rel->r_offset == irel->r_offset; | |
12039 | tmp_rel++) | |
12040 | { | |
12041 | if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_INSN16 | |
12042 | && (is_convert_32_to_16 | |
12043 | (abfd, sec, tmp_rel, internal_relocs, | |
12044 | irelend, &insn16) | |
12045 | || is_16bit_NOP (abfd, sec, tmp_rel))) | |
12046 | { | |
12047 | force_relax = 1; | |
12048 | break; | |
12049 | } | |
12050 | } | |
12051 | } | |
12052 | ||
12053 | if (force_relax || irel->r_addend == 1 || address & 0x2) | |
12054 | { | |
12055 | /* Label not aligned. */ | |
12056 | /* Previous reloc exists, reduce its size to 16-bit. */ | |
12057 | if (is_convert_32_to_16 (abfd, sec, insn_rel, | |
12058 | internal_relocs, irelend, &insn16)) | |
12059 | { | |
12060 | nds32_elf_write_16 (abfd, contents, insn_rel, | |
12061 | internal_relocs, irelend, insn16); | |
12062 | ||
12063 | if (!insert_nds32_elf_blank_recalc_total | |
12064 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
0a1b45a2 | 12065 | return false; |
1c8f6a4d KLC |
12066 | } |
12067 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
12068 | { | |
12069 | if (!insert_nds32_elf_blank_recalc_total | |
12070 | (relax_blank_list, insn_rel->r_offset, 2)) | |
0a1b45a2 | 12071 | return false; |
1c8f6a4d KLC |
12072 | } |
12073 | ||
12074 | } | |
12075 | /* INSN16 reloc is used. */ | |
12076 | insn_rel = NULL; | |
12077 | } | |
12078 | } | |
12079 | ||
12080 | address = | |
12081 | sec->size - get_nds32_elf_blank_total (relax_blank_list, sec->size, 0); | |
12082 | if (insn_rel && (address & 0x2 || opt_size)) | |
12083 | { | |
12084 | if (is_convert_32_to_16 (abfd, sec, insn_rel, internal_relocs, | |
12085 | irelend, &insn16)) | |
12086 | { | |
12087 | nds32_elf_write_16 (abfd, contents, insn_rel, internal_relocs, | |
12088 | irelend, insn16); | |
12089 | if (!insert_nds32_elf_blank_recalc_total | |
12090 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
0a1b45a2 | 12091 | return false; |
1c8f6a4d KLC |
12092 | insn_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), |
12093 | R_NDS32_NONE); | |
12094 | } | |
12095 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
12096 | { | |
12097 | if (!insert_nds32_elf_blank_recalc_total | |
12098 | (relax_blank_list, insn_rel->r_offset, 2)) | |
0a1b45a2 | 12099 | return false; |
1c8f6a4d KLC |
12100 | insn_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), |
12101 | R_NDS32_NONE); | |
12102 | } | |
12103 | } | |
12104 | insn_rel = NULL; | |
0a1b45a2 | 12105 | return true; |
1c8f6a4d KLC |
12106 | } |
12107 | ||
0a1b45a2 | 12108 | static bool |
1c8f6a4d | 12109 | nds32_elf_relax_section (bfd *abfd, asection *sec, |
0a1b45a2 | 12110 | struct bfd_link_info *link_info, bool *again) |
1c8f6a4d KLC |
12111 | { |
12112 | nds32_elf_blank_t *relax_blank_list = NULL; | |
12113 | Elf_Internal_Shdr *symtab_hdr; | |
12114 | Elf_Internal_Rela *internal_relocs; | |
12115 | Elf_Internal_Rela *irel; | |
12116 | Elf_Internal_Rela *irelend; | |
12117 | Elf_Internal_Sym *isymbuf = NULL; | |
12118 | bfd_byte *contents = NULL; | |
0a1b45a2 | 12119 | bool result = true; |
1c8f6a4d KLC |
12120 | int optimize = 0; |
12121 | int opt_size = 0; | |
12122 | uint32_t insn; | |
12123 | uint16_t insn16; | |
12124 | ||
12125 | /* Target dependnet option. */ | |
12126 | struct elf_nds32_link_hash_table *table; | |
12127 | int load_store_relax; | |
1c8f6a4d KLC |
12128 | |
12129 | relax_blank_list = NULL; | |
12130 | ||
0a1b45a2 | 12131 | *again = false; |
1c8f6a4d KLC |
12132 | |
12133 | /* Nothing to do for | |
12134 | * relocatable link or | |
12135 | * non-relocatable section or | |
12136 | * non-code section or | |
12137 | * empty content or | |
12138 | * no reloc entry. */ | |
0e1862bb | 12139 | if (bfd_link_relocatable (link_info) |
1c8f6a4d | 12140 | || (sec->flags & SEC_RELOC) == 0 |
cd28e7aa | 12141 | || (sec->flags & SEC_EXCLUDE) != 0 |
1c8f6a4d | 12142 | || (sec->flags & SEC_CODE) == 0 |
fbaf61ad NC |
12143 | || sec->size == 0 |
12144 | || sec->reloc_count == 0) | |
0a1b45a2 | 12145 | return true; |
1c8f6a4d KLC |
12146 | |
12147 | /* 09.12.11 Workaround. */ | |
12148 | /* We have to adjust align for R_NDS32_LABEL if needed. | |
12149 | The adjust approach only can fix 2-byte align once. */ | |
12150 | if (sec->alignment_power > 2) | |
0a1b45a2 | 12151 | return true; |
1c8f6a4d | 12152 | |
fbaf61ad NC |
12153 | /* Do TLS model conversion once at first. */ |
12154 | nds32_elf_unify_tls_model (abfd, sec, contents, link_info); | |
12155 | ||
1c8f6a4d KLC |
12156 | /* The optimization type to do. */ |
12157 | ||
12158 | table = nds32_elf_hash_table (link_info); | |
1c8f6a4d | 12159 | |
fbaf61ad NC |
12160 | /* Save the first section for abs symbol relaxation. |
12161 | This is used for checking gp relaxation in the | |
12162 | nds32_elf_relax_loadstore and nds32_elf_relax_lo12. */ | |
0a1b45a2 | 12163 | nds32_elf_relax_guard (NULL, 0, sec, NULL, again, true, |
fbaf61ad NC |
12164 | table, NULL, NULL); |
12165 | ||
1c8f6a4d KLC |
12166 | /* The begining of general relaxation. */ |
12167 | ||
12168 | if (is_SDA_BASE_set == 0) | |
12169 | { | |
12170 | bfd_vma gp; | |
12171 | is_SDA_BASE_set = 1; | |
12172 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
0a1b45a2 | 12173 | &gp, false); |
c410035d | 12174 | relax_range_measurement (abfd, link_info); |
1c8f6a4d KLC |
12175 | } |
12176 | ||
1c8f6a4d KLC |
12177 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
12178 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
12179 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, | |
0a1b45a2 | 12180 | true /* keep_memory */); |
1c8f6a4d KLC |
12181 | if (internal_relocs == NULL) |
12182 | goto error_return; | |
12183 | ||
12184 | irelend = internal_relocs + sec->reloc_count; | |
12185 | irel = find_relocs_at_address (internal_relocs, internal_relocs, | |
12186 | irelend, R_NDS32_RELAX_ENTRY); | |
12187 | ||
12188 | if (irel == irelend) | |
0a1b45a2 | 12189 | return true; |
1c8f6a4d KLC |
12190 | |
12191 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY) | |
12192 | { | |
12193 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG) | |
0a1b45a2 | 12194 | return true; |
1c8f6a4d KLC |
12195 | |
12196 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG) | |
12197 | optimize = 1; | |
12198 | ||
12199 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG) | |
12200 | opt_size = 1; | |
12201 | } | |
12202 | ||
12203 | load_store_relax = table->load_store_relax; | |
12204 | ||
12205 | /* Get symbol table and section content. */ | |
1781a9d0 | 12206 | contents = NULL; |
0a1b45a2 | 12207 | if (!nds32_get_section_contents (abfd, sec, &contents, true) |
1c8f6a4d KLC |
12208 | || !nds32_get_local_syms (abfd, sec, &isymbuf)) |
12209 | goto error_return; | |
12210 | ||
12211 | /* Do relax loop only when finalize is not done. | |
12212 | Take care of relaxable relocs except INSN16. */ | |
12213 | for (irel = internal_relocs; irel < irelend; irel++) | |
12214 | { | |
12215 | int seq_len; /* Original length of instruction sequence. */ | |
12216 | int insn_len = 0; /* Final length of instruction sequence. */ | |
0a1b45a2 | 12217 | bool removed; |
1c8f6a4d KLC |
12218 | |
12219 | insn = 0; | |
12220 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
12221 | && (irel->r_addend & 0x1f) >= 2) | |
12222 | optimize = 1; | |
12223 | ||
12224 | /* Relocation Types | |
12225 | R_NDS32_LONGCALL1 53 | |
12226 | R_NDS32_LONGCALL2 54 | |
12227 | R_NDS32_LONGCALL3 55 | |
12228 | R_NDS32_LONGJUMP1 56 | |
12229 | R_NDS32_LONGJUMP2 57 | |
12230 | R_NDS32_LONGJUMP3 58 | |
12231 | R_NDS32_LOADSTORE 59 */ | |
12232 | if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_LONGCALL1 | |
12233 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_LOADSTORE) | |
12234 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
12235 | ||
12236 | /* Relocation Types | |
12237 | R_NDS32_LONGCALL4 107 | |
12238 | R_NDS32_LONGCALL5 108 | |
12239 | R_NDS32_LONGCALL6 109 | |
12240 | R_NDS32_LONGJUMP4 110 | |
12241 | R_NDS32_LONGJUMP5 111 | |
12242 | R_NDS32_LONGJUMP6 112 | |
12243 | R_NDS32_LONGJUMP7 113 */ | |
12244 | else if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_LONGCALL4 | |
12245 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_LONGJUMP7) | |
12246 | seq_len = 4; | |
12247 | ||
12248 | /* Relocation Types | |
12249 | R_NDS32_LO12S0_RELA 30 | |
12250 | R_NDS32_LO12S1_RELA 29 | |
12251 | R_NDS32_LO12S2_RELA 28 | |
12252 | R_NDS32_LO12S2_SP_RELA 71 | |
12253 | R_NDS32_LO12S2_DP_RELA 70 | |
12254 | R_NDS32_GOT_LO12 46 | |
12255 | R_NDS32_GOTOFF_LO12 50 | |
12256 | R_NDS32_PLTREL_LO12 65 | |
12257 | R_NDS32_PLT_GOTREL_LO12 67 | |
12258 | R_NDS32_17IFC_PCREL_RELA 96 | |
12259 | R_NDS32_GOT_SUFF 193 | |
12260 | R_NDS32_GOTOFF_SUFF 194 | |
12261 | R_NDS32_PLT_GOT_SUFF 195 | |
12262 | R_NDS32_MULCALL_SUFF 196 | |
12263 | R_NDS32_PTR 197 */ | |
12264 | else if ((ELF32_R_TYPE (irel->r_info) <= R_NDS32_LO12S0_RELA | |
12265 | && ELF32_R_TYPE (irel->r_info) >= R_NDS32_LO12S2_RELA) | |
12266 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_SP_RELA | |
12267 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_DP_RELA | |
12268 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOT_LO12 | |
12269 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTOFF_LO12 | |
12270 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTPC_LO12 | |
12271 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_PLTREL_LO12 | |
12272 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_PLT_GOTREL_LO12 | |
12273 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_GOT_SUFF | |
12274 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_PTR) | |
12275 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_17IFC_PCREL_RELA | |
12276 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_LO12 | |
12277 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_ADD | |
fbaf61ad NC |
12278 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_LS |
12279 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LSI) | |
1c8f6a4d KLC |
12280 | seq_len = 0; |
12281 | else | |
12282 | continue; | |
12283 | ||
12284 | insn_len = seq_len; | |
0a1b45a2 | 12285 | removed = false; |
1c8f6a4d KLC |
12286 | |
12287 | switch (ELF32_R_TYPE (irel->r_info)) | |
12288 | { | |
12289 | case R_NDS32_LONGCALL1: | |
12290 | removed = nds32_elf_relax_longcall1 (abfd, sec, irel, internal_relocs, | |
12291 | &insn_len, contents, isymbuf, | |
12292 | symtab_hdr); | |
12293 | break; | |
12294 | case R_NDS32_LONGCALL2: | |
12295 | removed = nds32_elf_relax_longcall2 (abfd, sec, irel, internal_relocs, | |
12296 | &insn_len, contents, isymbuf, | |
12297 | symtab_hdr); | |
12298 | break; | |
12299 | case R_NDS32_LONGCALL3: | |
12300 | removed = nds32_elf_relax_longcall3 (abfd, sec, irel, internal_relocs, | |
12301 | &insn_len, contents, isymbuf, | |
12302 | symtab_hdr); | |
12303 | break; | |
12304 | case R_NDS32_LONGJUMP1: | |
12305 | removed = nds32_elf_relax_longjump1 (abfd, sec, irel, internal_relocs, | |
12306 | &insn_len, contents, isymbuf, | |
12307 | symtab_hdr); | |
12308 | break; | |
12309 | case R_NDS32_LONGJUMP2: | |
12310 | removed = nds32_elf_relax_longjump2 (abfd, sec, irel, internal_relocs, | |
12311 | &insn_len, contents, isymbuf, | |
12312 | symtab_hdr); | |
12313 | break; | |
12314 | case R_NDS32_LONGJUMP3: | |
12315 | removed = nds32_elf_relax_longjump3 (abfd, sec, irel, internal_relocs, | |
12316 | &insn_len, contents, isymbuf, | |
12317 | symtab_hdr); | |
12318 | break; | |
12319 | case R_NDS32_LONGCALL4: | |
12320 | removed = nds32_elf_relax_longcall4 (abfd, sec, irel, internal_relocs, | |
12321 | &insn_len, contents, isymbuf, | |
12322 | symtab_hdr); | |
12323 | break; | |
12324 | case R_NDS32_LONGCALL5: | |
12325 | removed = nds32_elf_relax_longcall5 (abfd, sec, irel, internal_relocs, | |
12326 | &insn_len, contents, isymbuf, | |
12327 | symtab_hdr); | |
12328 | break; | |
12329 | case R_NDS32_LONGCALL6: | |
12330 | removed = nds32_elf_relax_longcall6 (abfd, sec, irel, internal_relocs, | |
12331 | &insn_len, contents, isymbuf, | |
12332 | symtab_hdr); | |
12333 | break; | |
12334 | case R_NDS32_LONGJUMP4: | |
12335 | removed = nds32_elf_relax_longjump4 (abfd, sec, irel, internal_relocs, | |
12336 | &insn_len, contents, isymbuf, | |
12337 | symtab_hdr); | |
12338 | break; | |
12339 | case R_NDS32_LONGJUMP5: | |
12340 | removed = nds32_elf_relax_longjump5 (abfd, sec, irel, internal_relocs, | |
12341 | &insn_len, &seq_len, contents, | |
12342 | isymbuf, symtab_hdr); | |
12343 | break; | |
12344 | case R_NDS32_LONGJUMP6: | |
12345 | removed = nds32_elf_relax_longjump6 (abfd, sec, irel, internal_relocs, | |
12346 | &insn_len, &seq_len, contents, | |
12347 | isymbuf, symtab_hdr); | |
12348 | break; | |
12349 | case R_NDS32_LONGJUMP7: | |
12350 | removed = nds32_elf_relax_longjump7 (abfd, sec, irel, internal_relocs, | |
12351 | &insn_len, &seq_len, contents, | |
12352 | isymbuf, symtab_hdr); | |
12353 | break; | |
12354 | case R_NDS32_LOADSTORE: | |
12355 | removed = nds32_elf_relax_loadstore (link_info, abfd, sec, irel, | |
12356 | internal_relocs, &insn_len, | |
12357 | contents, isymbuf, symtab_hdr, | |
fbaf61ad | 12358 | load_store_relax, table); |
1c8f6a4d KLC |
12359 | break; |
12360 | case R_NDS32_LO12S0_RELA: | |
12361 | case R_NDS32_LO12S1_RELA: | |
fbaf61ad | 12362 | case R_NDS32_LO12S2_RELA: |
1c8f6a4d KLC |
12363 | case R_NDS32_LO12S2_DP_RELA: |
12364 | case R_NDS32_LO12S2_SP_RELA: | |
1c8f6a4d KLC |
12365 | /* Relax for low part. */ |
12366 | nds32_elf_relax_lo12 (link_info, abfd, sec, irel, internal_relocs, | |
fbaf61ad | 12367 | contents, isymbuf, symtab_hdr, table); |
1c8f6a4d KLC |
12368 | |
12369 | /* It is impossible to delete blank, so just continue. */ | |
12370 | continue; | |
fbaf61ad NC |
12371 | case R_NDS32_PTR: |
12372 | removed = nds32_elf_relax_ptr (abfd, sec, irel, internal_relocs, | |
12373 | &insn_len, &seq_len, contents); | |
12374 | break; | |
12375 | case R_NDS32_LSI: | |
12376 | nds32_elf_relax_flsi (link_info, abfd, sec, irel, internal_relocs, | |
12377 | contents, isymbuf, symtab_hdr, again); | |
12378 | continue; | |
1c8f6a4d KLC |
12379 | case R_NDS32_GOT_LO12: |
12380 | case R_NDS32_GOTOFF_LO12: | |
12381 | case R_NDS32_PLTREL_LO12: | |
12382 | case R_NDS32_PLT_GOTREL_LO12: | |
12383 | case R_NDS32_GOTPC_LO12: | |
1c8f6a4d | 12384 | case R_NDS32_TLS_LE_LO12: |
1c8f6a4d | 12385 | case R_NDS32_TLS_LE_ADD: |
1c8f6a4d | 12386 | case R_NDS32_TLS_LE_LS: |
1c8f6a4d | 12387 | case R_NDS32_PLT_GOT_SUFF: |
1c8f6a4d | 12388 | case R_NDS32_GOT_SUFF: |
1c8f6a4d | 12389 | case R_NDS32_GOTOFF_SUFF: |
1c8f6a4d KLC |
12390 | continue; |
12391 | default: | |
12392 | continue; | |
1c8f6a4d | 12393 | } |
fbaf61ad | 12394 | |
1c8f6a4d KLC |
12395 | if (removed && seq_len - insn_len > 0) |
12396 | { | |
12397 | if (!insert_nds32_elf_blank | |
12398 | (&relax_blank_list, irel->r_offset + insn_len, | |
12399 | seq_len - insn_len)) | |
12400 | goto error_return; | |
0a1b45a2 | 12401 | *again = true; |
35c08157 | 12402 | } |
1c8f6a4d KLC |
12403 | } |
12404 | ||
12405 | calc_nds32_blank_total (relax_blank_list); | |
12406 | ||
12407 | if (table->relax_fp_as_gp) | |
12408 | { | |
12409 | if (!nds32_relax_fp_as_gp (link_info, abfd, sec, internal_relocs, | |
12410 | irelend, isymbuf)) | |
12411 | goto error_return; | |
35c08157 | 12412 | |
535b785f | 12413 | if (!*again) |
35c08157 | 12414 | { |
1c8f6a4d KLC |
12415 | if (!nds32_fag_remove_unused_fpbase (abfd, sec, internal_relocs, |
12416 | irelend)) | |
12417 | goto error_return; | |
35c08157 KLC |
12418 | } |
12419 | } | |
1c8f6a4d | 12420 | |
535b785f | 12421 | if (!*again) |
1c8f6a4d KLC |
12422 | { |
12423 | if (!nds32_relax_adjust_label (abfd, sec, internal_relocs, contents, | |
12424 | &relax_blank_list, optimize, opt_size)) | |
12425 | goto error_return; | |
12426 | } | |
12427 | ||
12428 | /* It doesn't matter optimize_for_space_no_align anymore. | |
35c08157 KLC |
12429 | If object file is assembled with flag '-Os', |
12430 | the we don't adjust jump-destination on 4-byte boundary. */ | |
12431 | ||
12432 | if (relax_blank_list) | |
12433 | { | |
12434 | nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list); | |
12435 | relax_blank_list = NULL; | |
12436 | } | |
12437 | ||
535b785f | 12438 | if (!*again) |
35c08157 KLC |
12439 | { |
12440 | /* Closing the section, so we don't relax it anymore. */ | |
12441 | bfd_vma sec_size_align; | |
12442 | Elf_Internal_Rela *tmp_rel; | |
12443 | ||
12444 | /* Pad to alignment boundary. Only handle current section alignment. */ | |
609332f1 NC |
12445 | sec_size_align = (sec->size + (~((-1U) << sec->alignment_power))) |
12446 | & ((-1U) << sec->alignment_power); | |
35c08157 KLC |
12447 | if ((sec_size_align - sec->size) & 0x2) |
12448 | { | |
12449 | insn16 = NDS32_NOP16; | |
12450 | bfd_putb16 (insn16, contents + sec->size); | |
12451 | sec->size += 2; | |
12452 | } | |
12453 | ||
12454 | while (sec_size_align != sec->size) | |
12455 | { | |
12456 | insn = NDS32_NOP32; | |
12457 | bfd_putb32 (insn, contents + sec->size); | |
12458 | sec->size += 4; | |
12459 | } | |
12460 | ||
1c8f6a4d KLC |
12461 | tmp_rel = find_relocs_at_address (internal_relocs, internal_relocs, |
12462 | irelend, R_NDS32_RELAX_ENTRY); | |
35c08157 KLC |
12463 | if (tmp_rel != irelend) |
12464 | tmp_rel->r_addend |= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG; | |
12465 | ||
12466 | clean_nds32_elf_blank (); | |
12467 | } | |
12468 | ||
dc1e8a47 | 12469 | finish: |
c9594989 | 12470 | if (elf_section_data (sec)->relocs != internal_relocs) |
35c08157 KLC |
12471 | free (internal_relocs); |
12472 | ||
c9594989 | 12473 | if (elf_section_data (sec)->this_hdr.contents != contents) |
35c08157 KLC |
12474 | free (contents); |
12475 | ||
c9594989 | 12476 | if (symtab_hdr->contents != (bfd_byte *) isymbuf) |
35c08157 KLC |
12477 | free (isymbuf); |
12478 | ||
12479 | return result; | |
12480 | ||
dc1e8a47 | 12481 | error_return: |
0a1b45a2 | 12482 | result = false; |
35c08157 KLC |
12483 | goto finish; |
12484 | } | |
12485 | ||
12486 | static struct bfd_elf_special_section const nds32_elf_special_sections[] = | |
12487 | { | |
12488 | {".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE}, | |
12489 | {".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE}, | |
12490 | {NULL, 0, 0, 0, 0} | |
12491 | }; | |
12492 | ||
0a1b45a2 | 12493 | static bool |
bf577467 AM |
12494 | nds32_elf_section_flags (const Elf_Internal_Shdr *hdr) |
12495 | { | |
12496 | const char *name = hdr->bfd_section->name; | |
12497 | ||
3f3328b8 ML |
12498 | if (startswith (name, ".sbss") |
12499 | || startswith (name, ".sdata")) | |
bf577467 AM |
12500 | hdr->bfd_section->flags |= SEC_SMALL_DATA; |
12501 | ||
0a1b45a2 | 12502 | return true; |
bf577467 AM |
12503 | } |
12504 | ||
0a1b45a2 | 12505 | static bool |
35c08157 KLC |
12506 | nds32_elf_output_arch_syms (bfd *output_bfd ATTRIBUTE_UNUSED, |
12507 | struct bfd_link_info *info, | |
12508 | void *finfo ATTRIBUTE_UNUSED, | |
37bb890f AM |
12509 | int (*func) (void *, const char *, |
12510 | Elf_Internal_Sym *, | |
12511 | asection *, | |
12512 | struct elf_link_hash_entry *) | |
35c08157 KLC |
12513 | ATTRIBUTE_UNUSED) |
12514 | { | |
12515 | FILE *sym_ld_script = NULL; | |
12516 | struct elf_nds32_link_hash_table *table; | |
12517 | ||
12518 | table = nds32_elf_hash_table (info); | |
12519 | sym_ld_script = table->sym_ld_script; | |
12520 | ||
12521 | if (check_start_export_sym) | |
12522 | fprintf (sym_ld_script, "}\n"); | |
12523 | ||
0a1b45a2 | 12524 | return true; |
35c08157 KLC |
12525 | } |
12526 | ||
12527 | static enum elf_reloc_type_class | |
12528 | nds32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
12529 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
12530 | const Elf_Internal_Rela *rela) | |
12531 | { | |
12532 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
12533 | { | |
12534 | case R_NDS32_RELATIVE: | |
12535 | return reloc_class_relative; | |
12536 | case R_NDS32_JMP_SLOT: | |
12537 | return reloc_class_plt; | |
12538 | case R_NDS32_COPY: | |
12539 | return reloc_class_copy; | |
12540 | default: | |
12541 | return reloc_class_normal; | |
12542 | } | |
12543 | } | |
12544 | ||
12545 | /* Put target dependent option into info hash table. */ | |
12546 | void | |
12547 | bfd_elf32_nds32_set_target_option (struct bfd_link_info *link_info, | |
12548 | int relax_fp_as_gp, | |
12549 | int eliminate_gc_relocs, | |
fbaf61ad NC |
12550 | FILE * sym_ld_script, |
12551 | int hyper_relax, | |
12552 | int tls_desc_trampoline, | |
12553 | int load_store_relax) | |
35c08157 KLC |
12554 | { |
12555 | struct elf_nds32_link_hash_table *table; | |
12556 | ||
12557 | table = nds32_elf_hash_table (link_info); | |
12558 | if (table == NULL) | |
12559 | return; | |
12560 | ||
12561 | table->relax_fp_as_gp = relax_fp_as_gp; | |
12562 | table->eliminate_gc_relocs = eliminate_gc_relocs; | |
12563 | table->sym_ld_script = sym_ld_script; | |
fbaf61ad NC |
12564 | table->hyper_relax = hyper_relax; |
12565 | table->tls_desc_trampoline = tls_desc_trampoline; | |
35c08157 | 12566 | table ->load_store_relax = load_store_relax; |
35c08157 KLC |
12567 | } |
12568 | \f | |
fbaf61ad | 12569 | |
35c08157 KLC |
12570 | /* These functions and data-structures are used for fp-as-gp |
12571 | optimization. */ | |
12572 | ||
12573 | #define FAG_THRESHOLD 3 /* At least 3 gp-access. */ | |
1c8f6a4d KLC |
12574 | /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between |
12575 | the read-only section and read-write section. */ | |
12576 | #define FAG_WINDOW (508 - 32) | |
35c08157 KLC |
12577 | |
12578 | /* An nds32_fag represent a gp-relative access. | |
12579 | We find best fp-base by using a sliding window | |
12580 | to find a base address which can cover most gp-access. */ | |
12581 | struct nds32_fag | |
12582 | { | |
12583 | struct nds32_fag *next; /* NULL-teminated linked list. */ | |
12584 | bfd_vma addr; /* The address of this fag. */ | |
12585 | Elf_Internal_Rela **relas; /* The relocations associated with this fag. | |
12586 | It is used for applying FP7U2_FLAG. */ | |
12587 | int count; /* How many times this address is referred. | |
12588 | There should be exactly `count' relocations | |
12589 | in relas. */ | |
12590 | int relas_capcity; /* The buffer size of relas. | |
12591 | We use an array instead of linked-list, | |
12592 | and realloc is used to adjust buffer size. */ | |
12593 | }; | |
12594 | ||
12595 | static void | |
12596 | nds32_fag_init (struct nds32_fag *head) | |
12597 | { | |
12598 | memset (head, 0, sizeof (struct nds32_fag)); | |
12599 | } | |
12600 | ||
12601 | static void | |
12602 | nds32_fag_verify (struct nds32_fag *head) | |
12603 | { | |
12604 | struct nds32_fag *iter; | |
12605 | struct nds32_fag *prev; | |
12606 | ||
12607 | prev = NULL; | |
12608 | iter = head->next; | |
12609 | while (iter) | |
12610 | { | |
12611 | if (prev && prev->addr >= iter->addr) | |
12612 | puts ("Bug in fp-as-gp insertion."); | |
12613 | prev = iter; | |
12614 | iter = iter->next; | |
12615 | } | |
12616 | } | |
12617 | ||
12618 | /* Insert a fag in ascending order. | |
12619 | If a fag of the same address already exists, | |
12620 | they are chained by relas array. */ | |
12621 | ||
12622 | static void | |
12623 | nds32_fag_insert (struct nds32_fag *head, bfd_vma addr, | |
12624 | Elf_Internal_Rela * rel) | |
12625 | { | |
12626 | struct nds32_fag *iter; | |
12627 | struct nds32_fag *new_fag; | |
12628 | const int INIT_RELAS_CAP = 4; | |
12629 | ||
12630 | for (iter = head; | |
12631 | iter->next && iter->next->addr <= addr; | |
12632 | iter = iter->next) | |
12633 | /* Find somewhere to insert. */ ; | |
12634 | ||
12635 | /* `iter' will be equal to `head' if the list is empty. */ | |
12636 | if (iter != head && iter->addr == addr) | |
12637 | { | |
12638 | /* The address exists in the list. | |
12639 | Insert `rel' into relocation list, relas. */ | |
12640 | ||
12641 | /* Check whether relas is big enough. */ | |
12642 | if (iter->count >= iter->relas_capcity) | |
12643 | { | |
12644 | iter->relas_capcity *= 2; | |
12645 | iter->relas = bfd_realloc | |
12646 | (iter->relas, iter->relas_capcity * sizeof (void *)); | |
12647 | } | |
12648 | iter->relas[iter->count++] = rel; | |
12649 | return; | |
12650 | } | |
12651 | ||
12652 | /* This is a new address. Create a fag node for it. */ | |
12653 | new_fag = bfd_malloc (sizeof (struct nds32_fag)); | |
12654 | memset (new_fag, 0, sizeof (*new_fag)); | |
12655 | new_fag->addr = addr; | |
12656 | new_fag->count = 1; | |
12657 | new_fag->next = iter->next; | |
12658 | new_fag->relas_capcity = INIT_RELAS_CAP; | |
12659 | new_fag->relas = (Elf_Internal_Rela **) | |
12660 | bfd_malloc (new_fag->relas_capcity * sizeof (void *)); | |
12661 | new_fag->relas[0] = rel; | |
12662 | iter->next = new_fag; | |
12663 | ||
12664 | nds32_fag_verify (head); | |
12665 | } | |
12666 | ||
12667 | static void | |
12668 | nds32_fag_free_list (struct nds32_fag *head) | |
12669 | { | |
12670 | struct nds32_fag *iter; | |
12671 | ||
12672 | iter = head->next; | |
12673 | while (iter) | |
12674 | { | |
12675 | struct nds32_fag *tmp = iter; | |
12676 | iter = iter->next; | |
12677 | free (tmp->relas); | |
12678 | tmp->relas = NULL; | |
12679 | free (tmp); | |
12680 | } | |
12681 | } | |
12682 | ||
35c08157 KLC |
12683 | /* Find the best fp-base address. |
12684 | The relocation associated with that address is returned, | |
12685 | so we can track the symbol instead of a fixed address. | |
12686 | ||
12687 | When relaxation, the address of an datum may change, | |
12688 | because a text section is shrinked, so the data section | |
1c8f6a4d | 12689 | moves forward. If the aligments of text and data section |
35c08157 KLC |
12690 | are different, their distance may change too. |
12691 | Therefore, tracking a fixed address is not appriate. */ | |
12692 | ||
12693 | static int | |
12694 | nds32_fag_find_base (struct nds32_fag *head, struct nds32_fag **bestpp) | |
12695 | { | |
12696 | struct nds32_fag *base; /* First fag in the window. */ | |
12697 | struct nds32_fag *last; /* First fag outside the window. */ | |
12698 | int accu = 0; /* Usage accumulation. */ | |
12699 | struct nds32_fag *best; /* Best fag. */ | |
12700 | int baccu = 0; /* Best accumulation. */ | |
12701 | ||
12702 | /* Use first fag for initial, and find the last fag in the window. | |
12703 | ||
12704 | In each iteration, we could simply subtract previous fag | |
12705 | and accumulate following fags which are inside the window, | |
12706 | untill we each the end. */ | |
12707 | ||
1c8f6a4d KLC |
12708 | if (head->next == NULL) |
12709 | { | |
12710 | *bestpp = NULL; | |
12711 | return 0; | |
12712 | } | |
35c08157 KLC |
12713 | |
12714 | /* Initialize base. */ | |
12715 | base = head->next; | |
12716 | best = base; | |
12717 | for (last = base; | |
12718 | last && last->addr < base->addr + FAG_WINDOW; | |
12719 | last = last->next) | |
12720 | accu += last->count; | |
12721 | ||
12722 | baccu = accu; | |
12723 | ||
12724 | /* Record the best base in each iteration. */ | |
12725 | while (base->next) | |
1c8f6a4d KLC |
12726 | { |
12727 | accu -= base->count; | |
12728 | base = base->next; | |
12729 | /* Account fags in window. */ | |
12730 | for (/* Nothing. */; | |
12731 | last && last->addr < base->addr + FAG_WINDOW; | |
12732 | last = last->next) | |
12733 | accu += last->count; | |
12734 | ||
12735 | /* A better fp-base? */ | |
12736 | if (accu > baccu) | |
12737 | { | |
12738 | best = base; | |
12739 | baccu = accu; | |
12740 | } | |
12741 | } | |
35c08157 KLC |
12742 | |
12743 | if (bestpp) | |
12744 | *bestpp = best; | |
12745 | return baccu; | |
12746 | } | |
12747 | ||
12748 | /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses, | |
12749 | so we can convert it fo fp-relative access later. | |
12750 | `best_fag' is the best fp-base. Only those inside the window | |
12751 | of best_fag is applied the flag. */ | |
12752 | ||
0a1b45a2 | 12753 | static bool |
35c08157 | 12754 | nds32_fag_mark_relax (struct bfd_link_info *link_info, |
fbaf61ad | 12755 | asection *sec, struct nds32_fag *best_fag, |
35c08157 KLC |
12756 | Elf_Internal_Rela *internal_relocs, |
12757 | Elf_Internal_Rela *irelend) | |
12758 | { | |
12759 | struct nds32_fag *ifag; | |
12760 | bfd_vma best_fpbase, gp; | |
12761 | bfd *output_bfd; | |
12762 | ||
fbaf61ad | 12763 | output_bfd = sec->output_section->owner; |
0a1b45a2 | 12764 | nds32_elf_final_sda_base (output_bfd, link_info, &gp, false); |
35c08157 KLC |
12765 | best_fpbase = best_fag->addr; |
12766 | ||
1c8f6a4d KLC |
12767 | if (best_fpbase > gp + sdata_range[1][1] |
12768 | || best_fpbase < gp - sdata_range[1][0]) | |
0a1b45a2 | 12769 | return false; |
35c08157 KLC |
12770 | |
12771 | /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag, | |
12772 | so we know they can be converted to lwi37.fp. */ | |
12773 | for (ifag = best_fag; | |
12774 | ifag && ifag->addr < best_fpbase + FAG_WINDOW; ifag = ifag->next) | |
12775 | { | |
12776 | int i; | |
12777 | ||
12778 | for (i = 0; i < ifag->count; i++) | |
12779 | { | |
12780 | Elf_Internal_Rela *insn16_rel; | |
12781 | Elf_Internal_Rela *fag_rel; | |
12782 | ||
12783 | fag_rel = ifag->relas[i]; | |
12784 | ||
12785 | /* Only if this is within the WINDOWS, FP7U2_FLAG | |
12786 | is applied. */ | |
12787 | ||
12788 | insn16_rel = find_relocs_at_address | |
12789 | (fag_rel, internal_relocs, irelend, R_NDS32_INSN16); | |
12790 | ||
12791 | if (insn16_rel != irelend) | |
12792 | insn16_rel->r_addend = R_NDS32_INSN16_FP7U2_FLAG; | |
12793 | } | |
12794 | } | |
0a1b45a2 | 12795 | return true; |
35c08157 KLC |
12796 | } |
12797 | ||
1c8f6a4d KLC |
12798 | /* Reset INSN16 to clean fp as gp. */ |
12799 | ||
12800 | static void | |
12801 | nds32_fag_unmark_relax (struct nds32_fag *fag, | |
12802 | Elf_Internal_Rela *internal_relocs, | |
12803 | Elf_Internal_Rela *irelend) | |
12804 | { | |
12805 | struct nds32_fag *ifag; | |
12806 | int i; | |
12807 | Elf_Internal_Rela *insn16_rel; | |
12808 | Elf_Internal_Rela *fag_rel; | |
12809 | ||
12810 | for (ifag = fag; ifag; ifag = ifag->next) | |
12811 | { | |
12812 | for (i = 0; i < ifag->count; i++) | |
12813 | { | |
12814 | fag_rel = ifag->relas[i]; | |
12815 | ||
12816 | /* Restore the INSN16 relocation. */ | |
12817 | insn16_rel = find_relocs_at_address | |
12818 | (fag_rel, internal_relocs, irelend, R_NDS32_INSN16); | |
12819 | ||
12820 | if (insn16_rel != irelend) | |
12821 | insn16_rel->r_addend &= ~R_NDS32_INSN16_FP7U2_FLAG; | |
12822 | } | |
12823 | } | |
12824 | } | |
12825 | ||
35c08157 KLC |
12826 | /* This is the main function of fp-as-gp optimization. |
12827 | It should be called by relax_section. */ | |
12828 | ||
0a1b45a2 | 12829 | static bool |
35c08157 KLC |
12830 | nds32_relax_fp_as_gp (struct bfd_link_info *link_info, |
12831 | bfd *abfd, asection *sec, | |
12832 | Elf_Internal_Rela *internal_relocs, | |
12833 | Elf_Internal_Rela *irelend, | |
12834 | Elf_Internal_Sym *isymbuf) | |
12835 | { | |
12836 | Elf_Internal_Rela *begin_rel = NULL; | |
12837 | Elf_Internal_Rela *irel; | |
12838 | struct nds32_fag fag_head; | |
12839 | Elf_Internal_Shdr *symtab_hdr; | |
12840 | bfd_byte *contents; | |
0a1b45a2 | 12841 | bool ifc_inside = false; |
35c08157 KLC |
12842 | |
12843 | /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */ | |
12844 | ||
12845 | /* Per-function fp-base selection. | |
12846 | 1. Create a list for all the gp-relative access. | |
12847 | 2. Base on those gp-relative address, | |
12848 | find a fp-base which can cover most access. | |
12849 | 3. Use the fp-base for fp-as-gp relaxation. | |
12850 | ||
12851 | NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times), | |
12852 | we should | |
12853 | 1. delete the `la $fp, _FP_BASE_' instruction and | |
12854 | 2. not convert lwi.gp to lwi37.fp. | |
12855 | ||
12856 | To delete the _FP_BASE_ instruction, we simply apply | |
12857 | R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it. | |
12858 | ||
12859 | To suppress the conversion, we simply NOT to apply | |
12860 | R_NDS32_INSN16_FP7U2_FLAG flag. */ | |
12861 | ||
12862 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
12863 | ||
1781a9d0 | 12864 | contents = NULL; |
0a1b45a2 | 12865 | if (!nds32_get_section_contents (abfd, sec, &contents, true) |
35c08157 | 12866 | || !nds32_get_local_syms (abfd, sec, &isymbuf)) |
0a1b45a2 | 12867 | return false; |
35c08157 KLC |
12868 | |
12869 | /* Check whether it is worth for fp-as-gp optimization, | |
12870 | i.e., at least 3 gp-load. | |
12871 | ||
12872 | Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT | |
12873 | apply this optimization. */ | |
12874 | ||
12875 | for (irel = internal_relocs; irel < irelend; irel++) | |
12876 | { | |
12877 | /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region. | |
12878 | One we enter the begin of the region, we track all the LW/ST | |
12879 | instructions, so when we leave the region, we try to find | |
12880 | the best fp-base address for those LW/ST instructions. */ | |
12881 | ||
12882 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN | |
12883 | && (irel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
12884 | { | |
12885 | /* Begin of the region. */ | |
12886 | if (begin_rel) | |
695344c0 | 12887 | /* xgettext:c-format */ |
38f14ab8 | 12888 | _bfd_error_handler (_("%pB: nested OMIT_FP in %pA"), abfd, sec); |
35c08157 KLC |
12889 | |
12890 | begin_rel = irel; | |
12891 | nds32_fag_init (&fag_head); | |
0a1b45a2 | 12892 | ifc_inside = false; |
35c08157 KLC |
12893 | } |
12894 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END | |
12895 | && (irel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
12896 | { | |
12897 | int accu; | |
1c8f6a4d | 12898 | struct nds32_fag *best_fag, *tmp_fag; |
35c08157 KLC |
12899 | int dist; |
12900 | ||
12901 | /* End of the region. | |
12902 | Check whether it is worth to do fp-as-gp. */ | |
12903 | ||
12904 | if (begin_rel == NULL) | |
12905 | { | |
695344c0 | 12906 | /* xgettext:c-format */ |
38f14ab8 AM |
12907 | _bfd_error_handler (_("%pB: unmatched OMIT_FP in %pA"), |
12908 | abfd, sec); | |
35c08157 KLC |
12909 | continue; |
12910 | } | |
12911 | ||
12912 | accu = nds32_fag_find_base (&fag_head, &best_fag); | |
12913 | ||
1c8f6a4d KLC |
12914 | /* Clean FP7U2_FLAG because they may set ever. */ |
12915 | tmp_fag = fag_head.next; | |
12916 | nds32_fag_unmark_relax (tmp_fag, internal_relocs, irelend); | |
12917 | ||
35c08157 KLC |
12918 | /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */ |
12919 | if (accu < FAG_THRESHOLD | |
fbaf61ad | 12920 | || !nds32_fag_mark_relax (link_info, sec, best_fag, |
35c08157 KLC |
12921 | internal_relocs, irelend)) |
12922 | { | |
12923 | /* Not worth to do fp-as-gp. */ | |
12924 | begin_rel->r_addend |= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG; | |
12925 | begin_rel->r_addend &= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG; | |
12926 | irel->r_addend |= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG; | |
12927 | irel->r_addend &= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG; | |
12928 | nds32_fag_free_list (&fag_head); | |
12929 | begin_rel = NULL; | |
12930 | continue; | |
12931 | } | |
12932 | ||
12933 | /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler, | |
12934 | so we use it to record the distance to the reloction of best | |
12935 | fp-base. */ | |
12936 | dist = best_fag->relas[0] - begin_rel; | |
12937 | BFD_ASSERT (dist > 0 && dist < 0xffffff); | |
12938 | /* Use high 16 bits of addend to record the _FP_BASE_ matched | |
12939 | relocation. And get the base value when relocating. */ | |
1c8f6a4d | 12940 | begin_rel->r_addend &= (0x1 << 16) - 1; |
35c08157 KLC |
12941 | begin_rel->r_addend |= dist << 16; |
12942 | ||
12943 | nds32_fag_free_list (&fag_head); | |
12944 | begin_rel = NULL; | |
12945 | } | |
12946 | ||
1c8f6a4d | 12947 | if (begin_rel == NULL || ifc_inside) |
35c08157 KLC |
12948 | /* Skip if we are not in the region of fp-as-gp. */ |
12949 | continue; | |
12950 | ||
12951 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA15S2_RELA | |
12952 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA17S2_RELA) | |
12953 | { | |
12954 | bfd_vma addr; | |
12955 | uint32_t insn; | |
12956 | ||
12957 | /* A gp-relative access is found. Insert it to the fag-list. */ | |
12958 | ||
12959 | /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */ | |
12960 | insn = bfd_getb32 (contents + irel->r_offset); | |
12961 | if (!N32_IS_RT3 (insn)) | |
12962 | continue; | |
12963 | ||
12964 | addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
12965 | nds32_fag_insert (&fag_head, addr, irel); | |
12966 | } | |
12967 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA_FP7U2_RELA) | |
12968 | { | |
12969 | begin_rel = NULL; | |
12970 | } | |
1c8f6a4d KLC |
12971 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_17IFC_PCREL_RELA |
12972 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_10IFCU_PCREL_RELA) | |
12973 | { | |
12974 | /* Suppress fp as gp when encounter ifc. */ | |
0a1b45a2 | 12975 | ifc_inside = true; |
1c8f6a4d | 12976 | } |
35c08157 KLC |
12977 | } |
12978 | ||
0a1b45a2 | 12979 | return true; |
35c08157 KLC |
12980 | } |
12981 | ||
12982 | /* Remove unused `la $fp, _FD_BASE_' instruction. */ | |
12983 | ||
0a1b45a2 | 12984 | static bool |
35c08157 KLC |
12985 | nds32_fag_remove_unused_fpbase (bfd *abfd, asection *sec, |
12986 | Elf_Internal_Rela *internal_relocs, | |
12987 | Elf_Internal_Rela *irelend) | |
12988 | { | |
12989 | Elf_Internal_Rela *irel; | |
12990 | Elf_Internal_Shdr *symtab_hdr; | |
12991 | bfd_byte *contents = NULL; | |
12992 | nds32_elf_blank_t *relax_blank_list = NULL; | |
0a1b45a2 AM |
12993 | bool result = true; |
12994 | bool unused_region = false; | |
35c08157 KLC |
12995 | |
12996 | /* | |
fbaf61ad NC |
12997 | NOTE: Disable fp-as-gp if we encounter ifcall relocations: |
12998 | R_NDS32_17IFC_PCREL_RELA | |
12999 | R_NDS32_10IFCU_PCREL_RELA. */ | |
35c08157 KLC |
13000 | |
13001 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
0a1b45a2 | 13002 | nds32_get_section_contents (abfd, sec, &contents, true); |
35c08157 KLC |
13003 | |
13004 | for (irel = internal_relocs; irel < irelend; irel++) | |
13005 | { | |
13006 | /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP | |
13007 | we marked to in previous pass. | |
13008 | DO NOT scan relocations again, since we've alreadly decided it | |
13009 | and set the flag. */ | |
13010 | const char *syname; | |
13011 | int syndx; | |
13012 | uint32_t insn; | |
13013 | ||
13014 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN | |
13015 | && (irel->r_addend & R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG)) | |
0a1b45a2 | 13016 | unused_region = true; |
35c08157 KLC |
13017 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END |
13018 | && (irel->r_addend & R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG)) | |
0a1b45a2 | 13019 | unused_region = false; |
35c08157 KLC |
13020 | |
13021 | /* We're not in the region. */ | |
13022 | if (!unused_region) | |
13023 | continue; | |
13024 | ||
13025 | /* _FP_BASE_ must be a GLOBAL symbol. */ | |
13026 | syndx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
13027 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
13028 | continue; | |
13029 | ||
13030 | /* The symbol name must be _FP_BASE_. */ | |
13031 | syname = elf_sym_hashes (abfd)[syndx]->root.root.string; | |
13032 | if (strcmp (syname, FP_BASE_NAME) != 0) | |
13033 | continue; | |
13034 | ||
13035 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA19S0_RELA) | |
13036 | { | |
13037 | /* addi.gp $fp, -256 */ | |
13038 | insn = bfd_getb32 (contents + irel->r_offset); | |
13039 | if (insn != INSN_ADDIGP_TO_FP) | |
13040 | continue; | |
13041 | } | |
13042 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA15S0_RELA) | |
13043 | { | |
13044 | /* addi $fp, $gp, -256 */ | |
13045 | insn = bfd_getb32 (contents + irel->r_offset); | |
13046 | if (insn != INSN_ADDI_GP_TO_FP) | |
13047 | continue; | |
13048 | } | |
13049 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_20_RELA) | |
13050 | { | |
13051 | /* movi $fp, FP_BASE */ | |
13052 | insn = bfd_getb32 (contents + irel->r_offset); | |
13053 | if (insn != INSN_MOVI_TO_FP) | |
13054 | continue; | |
13055 | } | |
13056 | else | |
13057 | continue; | |
13058 | ||
13059 | /* We got here because a FP_BASE instruction is found. */ | |
13060 | if (!insert_nds32_elf_blank_recalc_total | |
13061 | (&relax_blank_list, irel->r_offset, 4)) | |
13062 | goto error_return; | |
13063 | } | |
13064 | ||
dc1e8a47 | 13065 | finish: |
35c08157 KLC |
13066 | if (relax_blank_list) |
13067 | { | |
13068 | nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list); | |
13069 | relax_blank_list = NULL; | |
13070 | } | |
13071 | return result; | |
13072 | ||
dc1e8a47 | 13073 | error_return: |
0a1b45a2 | 13074 | result = false; |
35c08157 KLC |
13075 | goto finish; |
13076 | } | |
1c8f6a4d KLC |
13077 | |
13078 | /* This is a version of bfd_generic_get_relocated_section_contents. | |
13079 | We need this variety because relaxation will modify the dwarf | |
13080 | infomation. When there is undefined symbol reference error mesage, | |
13081 | linker need to dump line number where the symbol be used. However | |
13082 | the address is be relaxed, it can not get the original dwarf contents. | |
13083 | The variety only modify function call for reading in the section. */ | |
13084 | ||
13085 | static bfd_byte * | |
13086 | nds32_elf_get_relocated_section_contents (bfd *abfd, | |
13087 | struct bfd_link_info *link_info, | |
13088 | struct bfd_link_order *link_order, | |
13089 | bfd_byte *data, | |
0a1b45a2 | 13090 | bool relocatable, |
1c8f6a4d KLC |
13091 | asymbol **symbols) |
13092 | { | |
13093 | bfd *input_bfd = link_order->u.indirect.section->owner; | |
13094 | asection *input_section = link_order->u.indirect.section; | |
13095 | long reloc_size; | |
13096 | arelent **reloc_vector; | |
13097 | long reloc_count; | |
13098 | ||
13099 | reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section); | |
13100 | if (reloc_size < 0) | |
13101 | return NULL; | |
13102 | ||
13103 | /* Read in the section. */ | |
56ba7527 | 13104 | bfd_byte *orig_data = data; |
0a1b45a2 | 13105 | if (!nds32_get_section_contents (input_bfd, input_section, &data, false)) |
1c8f6a4d KLC |
13106 | return NULL; |
13107 | ||
13108 | if (reloc_size == 0) | |
13109 | return data; | |
13110 | ||
13111 | reloc_vector = (arelent **) bfd_malloc (reloc_size); | |
13112 | if (reloc_vector == NULL) | |
56ba7527 | 13113 | goto error_return; |
1c8f6a4d KLC |
13114 | |
13115 | reloc_count = bfd_canonicalize_reloc (input_bfd, input_section, | |
13116 | reloc_vector, symbols); | |
13117 | if (reloc_count < 0) | |
13118 | goto error_return; | |
13119 | ||
13120 | if (reloc_count > 0) | |
13121 | { | |
13122 | arelent **parent; | |
13123 | for (parent = reloc_vector; *parent != NULL; parent++) | |
13124 | { | |
13125 | char *error_message = NULL; | |
13126 | asymbol *symbol; | |
13127 | bfd_reloc_status_type r; | |
13128 | ||
13129 | symbol = *(*parent)->sym_ptr_ptr; | |
13130 | if (symbol->section && discarded_section (symbol->section)) | |
13131 | { | |
0930cb30 | 13132 | bfd_vma off; |
1c8f6a4d | 13133 | static reloc_howto_type none_howto |
c94cb026 | 13134 | = HOWTO (0, 0, 0, 0, false, 0, complain_overflow_dont, NULL, |
0a1b45a2 | 13135 | "unused", false, 0, 0, false); |
1c8f6a4d | 13136 | |
bb294208 AM |
13137 | off = (*parent)->address * OCTETS_PER_BYTE (input_bfd, |
13138 | input_section); | |
0930cb30 AM |
13139 | _bfd_clear_contents ((*parent)->howto, input_bfd, |
13140 | input_section, data, off); | |
1c8f6a4d KLC |
13141 | (*parent)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
13142 | (*parent)->addend = 0; | |
13143 | (*parent)->howto = &none_howto; | |
13144 | r = bfd_reloc_ok; | |
13145 | } | |
13146 | else | |
13147 | r = bfd_perform_relocation (input_bfd, *parent, data, | |
13148 | input_section, | |
13149 | relocatable ? abfd : NULL, | |
13150 | &error_message); | |
13151 | ||
13152 | if (relocatable) | |
13153 | { | |
13154 | asection *os = input_section->output_section; | |
13155 | ||
13156 | /* A partial link, so keep the relocs. */ | |
13157 | os->orelocation[os->reloc_count] = *parent; | |
13158 | os->reloc_count++; | |
13159 | } | |
13160 | ||
13161 | if (r != bfd_reloc_ok) | |
13162 | { | |
13163 | switch (r) | |
13164 | { | |
13165 | case bfd_reloc_undefined: | |
1a72702b AM |
13166 | (*link_info->callbacks->undefined_symbol) |
13167 | (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr), | |
0a1b45a2 | 13168 | input_bfd, input_section, (*parent)->address, true); |
1c8f6a4d KLC |
13169 | break; |
13170 | case bfd_reloc_dangerous: | |
13171 | BFD_ASSERT (error_message != NULL); | |
1a72702b AM |
13172 | (*link_info->callbacks->reloc_dangerous) |
13173 | (link_info, error_message, | |
13174 | input_bfd, input_section, (*parent)->address); | |
1c8f6a4d KLC |
13175 | break; |
13176 | case bfd_reloc_overflow: | |
1a72702b AM |
13177 | (*link_info->callbacks->reloc_overflow) |
13178 | (link_info, NULL, | |
13179 | bfd_asymbol_name (*(*parent)->sym_ptr_ptr), | |
13180 | (*parent)->howto->name, (*parent)->addend, | |
13181 | input_bfd, input_section, (*parent)->address); | |
1c8f6a4d KLC |
13182 | break; |
13183 | case bfd_reloc_outofrange: | |
13184 | /* PR ld/13730: | |
13185 | This error can result when processing some partially | |
13186 | complete binaries. Do not abort, but issue an error | |
13187 | message instead. */ | |
13188 | link_info->callbacks->einfo | |
695344c0 | 13189 | /* xgettext:c-format */ |
c1c8c1ef | 13190 | (_("%X%P: %pB(%pA): relocation \"%pR\" goes out of range\n"), |
1c8f6a4d KLC |
13191 | abfd, input_section, * parent); |
13192 | goto error_return; | |
13193 | ||
13194 | default: | |
13195 | abort (); | |
13196 | break; | |
13197 | } | |
13198 | } | |
13199 | } | |
13200 | } | |
13201 | ||
13202 | free (reloc_vector); | |
13203 | return data; | |
13204 | ||
dc1e8a47 | 13205 | error_return: |
1c8f6a4d | 13206 | free (reloc_vector); |
56ba7527 AM |
13207 | if (orig_data == NULL) |
13208 | free (data); | |
1c8f6a4d KLC |
13209 | return NULL; |
13210 | } | |
fbaf61ad NC |
13211 | |
13212 | /* Check target symbol. */ | |
13213 | ||
0a1b45a2 | 13214 | static bool |
fbaf61ad NC |
13215 | nds32_elf_is_target_special_symbol (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym) |
13216 | { | |
13217 | if (!sym || !sym->name || sym->name[0] != '$') | |
0a1b45a2 AM |
13218 | return false; |
13219 | return true; | |
fbaf61ad NC |
13220 | } |
13221 | ||
13222 | /* nds32 find maybe function sym. Ignore target special symbol | |
13223 | first, and then go the general function. */ | |
13224 | ||
13225 | static bfd_size_type | |
13226 | nds32_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
13227 | bfd_vma *code_off) | |
13228 | { | |
13229 | if (nds32_elf_is_target_special_symbol (NULL, (asymbol *) sym)) | |
13230 | return 0; | |
13231 | ||
13232 | return _bfd_elf_maybe_function_sym (sym, sec, code_off); | |
13233 | } | |
35c08157 | 13234 | \f |
35c08157 | 13235 | |
fbaf61ad NC |
13236 | /* Do TLS model conversion. */ |
13237 | ||
13238 | typedef struct relax_group_list_t | |
13239 | { | |
13240 | Elf_Internal_Rela *relo; | |
13241 | struct relax_group_list_t *next; | |
13242 | struct relax_group_list_t *next_sibling; | |
13243 | int id; | |
13244 | } relax_group_list_t; | |
13245 | ||
13246 | int | |
13247 | list_insert (relax_group_list_t *pHead, Elf_Internal_Rela *pElem); | |
13248 | ||
13249 | int | |
13250 | list_insert_sibling (relax_group_list_t *pNode, Elf_Internal_Rela *pElem); | |
13251 | ||
13252 | void | |
13253 | dump_chain (relax_group_list_t *pHead); | |
13254 | ||
13255 | int | |
13256 | list_insert (relax_group_list_t *pHead, Elf_Internal_Rela *pElem) | |
13257 | { | |
13258 | relax_group_list_t *pNext = pHead; | |
13259 | ||
13260 | /* Find place. */ | |
13261 | while (pNext->next) | |
13262 | { | |
13263 | if (pNext->next->id > (int) pElem->r_addend) | |
13264 | break; | |
13265 | ||
13266 | pNext = pNext->next; | |
13267 | } | |
13268 | ||
13269 | /* Insert node. */ | |
13270 | relax_group_list_t *pNew = bfd_malloc (sizeof (relax_group_list_t)); | |
13271 | if (!pNew) | |
0a1b45a2 | 13272 | return false; |
fbaf61ad NC |
13273 | |
13274 | relax_group_list_t *tmp = pNext->next; | |
13275 | pNext->next = pNew; | |
13276 | ||
13277 | pNew->id = pElem->r_addend; | |
13278 | pNew->relo = pElem; | |
13279 | pNew->next = tmp; | |
13280 | pNew->next_sibling = NULL; | |
13281 | ||
0a1b45a2 | 13282 | return true; |
fbaf61ad NC |
13283 | } |
13284 | ||
13285 | int | |
13286 | list_insert_sibling (relax_group_list_t *pNode, Elf_Internal_Rela *pElem) | |
13287 | { | |
13288 | relax_group_list_t *pNext = pNode; | |
13289 | ||
13290 | /* Find place. */ | |
13291 | while (pNext->next_sibling) | |
13292 | { | |
13293 | pNext = pNext->next_sibling; | |
13294 | } | |
13295 | ||
13296 | /* Insert node. */ | |
13297 | relax_group_list_t *pNew = bfd_malloc (sizeof (relax_group_list_t)); | |
13298 | if (!pNew) | |
0a1b45a2 | 13299 | return false; |
fbaf61ad NC |
13300 | |
13301 | relax_group_list_t *tmp = pNext->next_sibling; | |
13302 | pNext->next_sibling = pNew; | |
13303 | ||
13304 | pNew->id = -1; | |
13305 | pNew->relo = pElem; | |
13306 | pNew->next = NULL; | |
13307 | pNew->next_sibling = tmp; | |
13308 | ||
0a1b45a2 | 13309 | return true; |
fbaf61ad NC |
13310 | } |
13311 | ||
13312 | void | |
13313 | dump_chain (relax_group_list_t *pHead) | |
13314 | { | |
13315 | relax_group_list_t *pNext = pHead->next; | |
13316 | while (pNext) | |
13317 | { | |
13318 | printf("group %d @ 0x%08x", pNext->id, (unsigned)pNext->relo->r_offset); | |
13319 | relax_group_list_t *pNextSib = pNext->next_sibling; | |
13320 | while (pNextSib) | |
13321 | { | |
13322 | printf(", %d", (unsigned) ELF32_R_TYPE (pNextSib->relo->r_info)); | |
13323 | pNextSib = pNextSib->next_sibling; | |
13324 | } | |
13325 | pNext = pNext->next; | |
13326 | printf("\n"); | |
13327 | } | |
13328 | } | |
13329 | ||
13330 | /* Check R_NDS32_RELAX_GROUP of each section. | |
13331 | There might be multiple sections in one object file. */ | |
13332 | ||
13333 | int | |
13334 | elf32_nds32_check_relax_group (bfd *abfd, asection *asec) | |
13335 | { | |
13336 | elf32_nds32_relax_group_t *relax_group_ptr = | |
13337 | elf32_nds32_relax_group_ptr (abfd); | |
13338 | ||
13339 | int min_id = relax_group_ptr->min_id; | |
13340 | int max_id = relax_group_ptr->max_id; | |
13341 | ||
13342 | Elf_Internal_Rela *rel; | |
13343 | Elf_Internal_Rela *relend; | |
13344 | Elf_Internal_Rela *relocs; | |
13345 | enum elf_nds32_reloc_type rtype; | |
13346 | ||
13347 | do | |
13348 | { | |
13349 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
13350 | relocs = _bfd_elf_link_read_relocs (abfd, asec, NULL, NULL, | |
0a1b45a2 | 13351 | true /* keep_memory */); |
fbaf61ad NC |
13352 | if (relocs == NULL) |
13353 | break; | |
13354 | ||
13355 | /* Check R_NDS32_RELAX_GROUP. */ | |
13356 | relend = relocs + asec->reloc_count; | |
13357 | for (rel = relocs; rel < relend; rel++) | |
13358 | { | |
13359 | int id; | |
13360 | rtype = ELF32_R_TYPE (rel->r_info); | |
13361 | if (rtype != R_NDS32_RELAX_GROUP) | |
13362 | continue; | |
13363 | ||
13364 | id = rel->r_addend; | |
13365 | if (id < min_id) | |
13366 | min_id = id; | |
13367 | else if (id > max_id) | |
13368 | max_id = id; | |
13369 | } | |
13370 | } | |
0a1b45a2 | 13371 | while (false); |
fbaf61ad | 13372 | |
c9594989 | 13373 | if (elf_section_data (asec)->relocs != relocs) |
fbaf61ad NC |
13374 | free (relocs); |
13375 | ||
13376 | if ((min_id != relax_group_ptr->min_id) | |
13377 | || (max_id != relax_group_ptr->max_id)) | |
13378 | { | |
13379 | relax_group_ptr->count = max_id - min_id + 1; | |
13380 | BFD_ASSERT(min_id <= relax_group_ptr->min_id); | |
13381 | relax_group_ptr->min_id = min_id; | |
13382 | BFD_ASSERT(max_id >= relax_group_ptr->max_id); | |
13383 | relax_group_ptr->max_id = max_id; | |
13384 | } | |
13385 | ||
13386 | return relax_group_ptr->count; | |
13387 | } | |
13388 | ||
13389 | /* Reorder RELAX_GROUP ID when command line option '-r' is applied. */ | |
3fafa2e2 | 13390 | static struct section_id_list_t *relax_group_section_id_list = NULL; |
fbaf61ad NC |
13391 | |
13392 | struct section_id_list_t * | |
13393 | elf32_nds32_lookup_section_id (int id, struct section_id_list_t **lst_ptr) | |
13394 | { | |
13395 | struct section_id_list_t *result = NULL; | |
13396 | struct section_id_list_t *lst = *lst_ptr; | |
13397 | ||
13398 | if (NULL == lst) | |
13399 | { | |
13400 | result = (struct section_id_list_t *) calloc | |
13401 | (1, sizeof (struct section_id_list_t)); | |
13402 | BFD_ASSERT (result); /* Feed me. */ | |
13403 | result->id = id; | |
13404 | *lst_ptr = result; | |
13405 | } | |
13406 | else | |
13407 | { | |
13408 | struct section_id_list_t *cur = lst; | |
13409 | struct section_id_list_t *prv = NULL; | |
13410 | struct section_id_list_t *sec = NULL; | |
13411 | ||
13412 | while (cur) | |
13413 | { | |
13414 | if (cur->id < id) | |
13415 | { | |
13416 | prv = cur; | |
13417 | cur = cur->next; | |
13418 | continue; | |
13419 | } | |
13420 | ||
13421 | if (cur->id > id) | |
13422 | { | |
13423 | cur = NULL; /* To insert after prv. */ | |
13424 | sec = cur; /* In case prv == NULL. */ | |
13425 | } | |
13426 | ||
13427 | break; | |
13428 | } | |
13429 | ||
13430 | if (NULL == cur) | |
13431 | { | |
13432 | /* Insert after prv. */ | |
13433 | result = (struct section_id_list_t *) calloc | |
13434 | (1, sizeof (struct section_id_list_t)); | |
13435 | BFD_ASSERT (result); /* Feed me. */ | |
13436 | result->id = id; | |
13437 | if (NULL != prv) | |
13438 | { | |
13439 | result->next = prv->next; | |
13440 | prv->next = result; | |
13441 | } | |
13442 | else | |
13443 | { | |
13444 | *lst_ptr = result; | |
13445 | result->next = sec; | |
13446 | } | |
13447 | } | |
13448 | } | |
13449 | ||
13450 | return result; | |
13451 | } | |
13452 | ||
13453 | int | |
13454 | elf32_nds32_unify_relax_group (bfd *abfd, asection *asec) | |
13455 | { | |
13456 | static int next_relax_group_bias = 0; | |
13457 | ||
13458 | elf32_nds32_relax_group_t *relax_group_ptr = | |
13459 | elf32_nds32_relax_group_ptr (abfd); | |
13460 | ||
0a1b45a2 | 13461 | bool result = true; |
fbaf61ad NC |
13462 | Elf_Internal_Rela *rel; |
13463 | Elf_Internal_Rela *relend; | |
13464 | Elf_Internal_Rela *relocs = NULL; | |
13465 | enum elf_nds32_reloc_type rtype; | |
13466 | struct section_id_list_t *node = NULL; | |
fbaf61ad NC |
13467 | |
13468 | do | |
13469 | { | |
13470 | if (0 == relax_group_ptr->count) | |
13471 | break; | |
13472 | ||
13473 | /* Check if this section has been handled. */ | |
13474 | node = elf32_nds32_lookup_section_id (asec->id, &relax_group_section_id_list); | |
13475 | if (NULL == node) | |
13476 | break; /* Hit, the section id has handled. */ | |
13477 | ||
13478 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
13479 | relocs = _bfd_elf_link_read_relocs (abfd, asec, NULL, NULL, | |
0a1b45a2 | 13480 | true /* keep_memory */); |
fbaf61ad NC |
13481 | if (relocs == NULL) |
13482 | { | |
13483 | BFD_ASSERT (0); /* feed me */ | |
13484 | break; | |
13485 | } | |
13486 | ||
13487 | /* Allocate group id bias for this bfd! */ | |
13488 | if (0 == relax_group_ptr->init) | |
13489 | { | |
13490 | relax_group_ptr->bias = next_relax_group_bias; | |
13491 | next_relax_group_bias += relax_group_ptr->count; | |
13492 | relax_group_ptr->init = 1; | |
13493 | } | |
13494 | ||
13495 | /* Reorder relax group groups. */ | |
13496 | relend = relocs + asec->reloc_count; | |
13497 | for (rel = relocs; rel < relend; rel++) | |
13498 | { | |
13499 | rtype = ELF32_R_TYPE(rel->r_info); | |
13500 | if (rtype != R_NDS32_RELAX_GROUP) | |
13501 | continue; | |
13502 | ||
13503 | /* Change it. */ | |
13504 | rel->r_addend += relax_group_ptr->bias; | |
fbaf61ad NC |
13505 | } |
13506 | } | |
0a1b45a2 | 13507 | while (false); |
fbaf61ad | 13508 | |
c9594989 | 13509 | if (elf_section_data (asec)->relocs != relocs) |
fbaf61ad NC |
13510 | free (relocs); |
13511 | ||
13512 | return result; | |
13513 | } | |
13514 | ||
13515 | int | |
13516 | nds32_elf_unify_tls_model (bfd *inbfd, asection *insec, bfd_byte *incontents, | |
13517 | struct bfd_link_info *lnkinfo) | |
13518 | { | |
0a1b45a2 | 13519 | bool result = true; |
fbaf61ad NC |
13520 | Elf_Internal_Rela *irel; |
13521 | Elf_Internal_Rela *irelend; | |
13522 | Elf_Internal_Rela *internal_relocs; | |
13523 | unsigned long r_symndx; | |
13524 | enum elf_nds32_reloc_type r_type; | |
13525 | ||
13526 | Elf_Internal_Sym *local_syms = NULL; | |
13527 | bfd_byte *contents = NULL; | |
13528 | ||
13529 | relax_group_list_t chain = { .id = -1, .next = NULL, .next_sibling = NULL }; | |
13530 | ||
13531 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (inbfd)->symtab_hdr; | |
9bc8e54b | 13532 | struct elf_link_hash_entry **sym_hashes; |
fbaf61ad | 13533 | sym_hashes = elf_sym_hashes (inbfd); |
fbaf61ad NC |
13534 | |
13535 | /* Reorder RELAX_GROUP when command line option '-r' is applied. */ | |
13536 | if (bfd_link_relocatable (lnkinfo)) | |
13537 | { | |
13538 | elf32_nds32_unify_relax_group (inbfd, insec); | |
13539 | return result; | |
13540 | } | |
13541 | ||
13542 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
13543 | internal_relocs = _bfd_elf_link_read_relocs (inbfd, insec, NULL, NULL, | |
0a1b45a2 | 13544 | true /* keep_memory */); |
fbaf61ad NC |
13545 | if (internal_relocs == NULL) |
13546 | goto error_return; | |
13547 | ||
13548 | irelend = internal_relocs + insec->reloc_count; | |
13549 | irel = find_relocs_at_address (internal_relocs, internal_relocs, | |
13550 | irelend, R_NDS32_RELAX_ENTRY); | |
13551 | if (irel == irelend) | |
13552 | goto finish; | |
13553 | ||
13554 | /* Chain/remove groups. */ | |
13555 | for (irel = internal_relocs; irel < irelend; irel++) | |
13556 | { | |
13557 | r_symndx = ELF32_R_SYM (irel->r_info); | |
13558 | r_type = ELF32_R_TYPE (irel->r_info); | |
13559 | if (r_type != R_NDS32_RELAX_GROUP) | |
13560 | continue; | |
13561 | ||
13562 | /* Remove it. */ | |
13563 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_NONE); | |
13564 | /* Chain it now. */ | |
13565 | if (!list_insert (&chain, irel)) | |
13566 | goto error_return; | |
13567 | } | |
13568 | ||
13569 | /* Collect group relocations. */ | |
13570 | /* Presume relocations are sorted. */ | |
13571 | relax_group_list_t *pNext = chain.next; | |
13572 | while (pNext) | |
13573 | { | |
13574 | for (irel = internal_relocs; irel < irelend; irel++) | |
13575 | { | |
13576 | if (irel->r_offset == pNext->relo->r_offset) | |
13577 | { | |
13578 | /* Ignore Non-TLS relocation types. */ | |
13579 | r_type = ELF32_R_TYPE (irel->r_info); | |
13580 | if ((R_NDS32_TLS_LE_HI20 > r_type) | |
13581 | || (R_NDS32_RELAX_ENTRY == r_type)) | |
13582 | continue; | |
13583 | ||
13584 | if (!list_insert_sibling (pNext, irel)) | |
13585 | goto error_return; | |
13586 | } | |
13587 | else if (irel->r_offset > pNext->relo->r_offset) | |
13588 | { | |
13589 | pNext = pNext->next; | |
13590 | if (!pNext) | |
13591 | break; | |
13592 | ||
13593 | bfd_vma current_offset = pNext->relo->r_offset; | |
13594 | if (irel->r_offset > current_offset) | |
13595 | irel = internal_relocs; /* restart from head */ | |
13596 | else | |
13597 | --irel; /* Check current irel again. */ | |
13598 | continue; | |
13599 | } | |
13600 | else | |
13601 | { | |
13602 | /* This shouldn't be reached. */ | |
13603 | } | |
13604 | } | |
13605 | if (pNext) | |
13606 | pNext = pNext->next; | |
13607 | } | |
13608 | ||
13609 | #ifdef DUBUG_VERBOSE | |
13610 | dump_chain(&chain); | |
13611 | #endif | |
13612 | ||
13613 | /* Get symbol table and section content. */ | |
13614 | if (incontents) | |
13615 | contents = incontents; | |
0a1b45a2 | 13616 | else if (!nds32_get_section_contents (inbfd, insec, &contents, true) |
fbaf61ad NC |
13617 | || !nds32_get_local_syms (inbfd, insec, &local_syms)) |
13618 | goto error_return; | |
13619 | ||
13620 | char *local_got_tls_type = elf32_nds32_local_got_tls_type (inbfd); | |
13621 | ||
13622 | /* Convert TLS model each group if necessary. */ | |
13623 | pNext = chain.next; | |
13624 | ||
13625 | int cur_grp_id = -1; | |
13626 | int sethi_rt = -1; | |
13627 | int add_rt = -1; | |
13628 | enum elf_nds32_tls_type tls_type, org_tls_type, eff_tls_type; | |
13629 | ||
13630 | tls_type = org_tls_type = eff_tls_type = 0; | |
13631 | ||
13632 | while (pNext) | |
13633 | { | |
13634 | relax_group_list_t *pNextSig = pNext->next_sibling; | |
13635 | while (pNextSig) | |
13636 | { | |
13637 | struct elf_link_hash_entry *h = NULL; | |
13638 | ||
13639 | irel = pNextSig->relo; | |
13640 | r_symndx = ELF32_R_SYM(irel->r_info); | |
13641 | r_type = ELF32_R_TYPE(irel->r_info); | |
13642 | ||
13643 | if (pNext->id != cur_grp_id) | |
13644 | { | |
13645 | cur_grp_id = pNext->id; | |
13646 | org_tls_type = get_tls_type (r_type, NULL); | |
13647 | if (r_symndx >= symtab_hdr->sh_info) | |
13648 | { | |
13649 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
13650 | while (h->root.type == bfd_link_hash_indirect | |
13651 | || h->root.type == bfd_link_hash_warning) | |
13652 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
13653 | tls_type = ((struct elf_nds32_link_hash_entry *) h)->tls_type; | |
13654 | } | |
13655 | else | |
13656 | { | |
13657 | tls_type = local_got_tls_type | |
13658 | ? local_got_tls_type[r_symndx] | |
13659 | : GOT_NORMAL; | |
13660 | } | |
13661 | ||
13662 | eff_tls_type = 1 << (fls (tls_type) - 1); | |
13663 | sethi_rt = N32_RT5(bfd_getb32 (contents + irel->r_offset)); | |
13664 | } | |
13665 | ||
13666 | if (eff_tls_type != org_tls_type) | |
13667 | { | |
13668 | switch (org_tls_type) | |
13669 | { | |
13670 | /* DESC to IEGP/IE/LE. */ | |
13671 | case GOT_TLS_DESC: | |
13672 | switch (eff_tls_type) | |
13673 | { | |
13674 | case GOT_TLS_IE: | |
13675 | switch (r_type) | |
13676 | { | |
13677 | case R_NDS32_TLS_DESC_HI20: | |
13678 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13679 | R_NDS32_TLS_IE_HI20); | |
13680 | break; | |
13681 | case R_NDS32_TLS_DESC_LO12: | |
13682 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13683 | R_NDS32_TLS_IE_LO12); | |
13684 | break; | |
13685 | case R_NDS32_TLS_DESC_ADD: | |
13686 | { | |
13687 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13688 | add_rt = N32_RT5 (insn); | |
13689 | insn = N32_TYPE2 (LWI, add_rt, sethi_rt, 0); | |
13690 | bfd_putb32 (insn, contents + irel->r_offset); | |
13691 | ||
13692 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13693 | } | |
13694 | break; | |
13695 | case R_NDS32_TLS_DESC_FUNC: | |
13696 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13697 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13698 | R_NDS32_RELAX_REMOVE); | |
13699 | break; | |
13700 | case R_NDS32_TLS_DESC_CALL: | |
13701 | { | |
13702 | uint32_t insn = N32_ALU1(ADD, REG_R0, add_rt, | |
13703 | REG_TP); | |
13704 | bfd_putb32 (insn, contents + irel->r_offset); | |
13705 | ||
13706 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13707 | } | |
13708 | break; | |
13709 | case R_NDS32_LOADSTORE: | |
13710 | case R_NDS32_PTR: | |
13711 | case R_NDS32_PTR_RESOLVED: | |
13712 | case R_NDS32_NONE: | |
13713 | case R_NDS32_LABEL: | |
13714 | break; | |
13715 | default: | |
13716 | BFD_ASSERT(0); | |
13717 | break; | |
13718 | } | |
13719 | break; | |
13720 | case GOT_TLS_IEGP: | |
13721 | switch (r_type) | |
13722 | { | |
13723 | case R_NDS32_TLS_DESC_HI20: | |
13724 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13725 | R_NDS32_TLS_IEGP_HI20); | |
13726 | break; | |
13727 | case R_NDS32_TLS_DESC_LO12: | |
13728 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13729 | R_NDS32_TLS_IEGP_LO12); | |
13730 | break; | |
13731 | case R_NDS32_TLS_DESC_ADD: | |
13732 | { | |
13733 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13734 | add_rt = N32_RT5 (insn); | |
13735 | insn = N32_MEM(LW, add_rt, sethi_rt, REG_GP, 0); | |
13736 | bfd_putb32 (insn, contents + irel->r_offset); | |
13737 | ||
13738 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13739 | } | |
13740 | break; | |
13741 | case R_NDS32_TLS_DESC_FUNC: | |
13742 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13743 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13744 | R_NDS32_RELAX_REMOVE); | |
13745 | break; | |
13746 | case R_NDS32_TLS_DESC_CALL: | |
13747 | { | |
13748 | uint32_t insn = N32_ALU1(ADD, REG_R0, add_rt, | |
13749 | REG_TP); | |
13750 | bfd_putb32 (insn, contents + irel->r_offset); | |
13751 | ||
13752 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13753 | } | |
13754 | break; | |
13755 | case R_NDS32_LOADSTORE: | |
13756 | case R_NDS32_PTR: | |
13757 | case R_NDS32_PTR_RESOLVED: | |
13758 | case R_NDS32_NONE: | |
13759 | case R_NDS32_LABEL: | |
13760 | break; | |
13761 | default: | |
13762 | BFD_ASSERT(0); | |
13763 | break; | |
13764 | } | |
13765 | break; | |
13766 | case GOT_TLS_LE: | |
13767 | switch (r_type) | |
13768 | { | |
13769 | case R_NDS32_TLS_DESC_HI20: | |
13770 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_HI20); | |
13771 | break; | |
13772 | case R_NDS32_TLS_DESC_LO12: | |
13773 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_LO12); | |
13774 | break; | |
13775 | case R_NDS32_TLS_DESC_ADD: | |
13776 | { | |
13777 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13778 | ||
13779 | add_rt = N32_RT5 (insn); | |
13780 | insn = N32_ALU1 (ADD, REG_R0, sethi_rt, REG_TP); | |
13781 | bfd_putb32 (insn, contents + irel->r_offset); | |
13782 | ||
13783 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_ADD); | |
13784 | } | |
13785 | break; | |
13786 | case R_NDS32_TLS_DESC_FUNC: | |
13787 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13788 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_RELAX_REMOVE); | |
13789 | break; | |
13790 | case R_NDS32_TLS_DESC_CALL: | |
13791 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13792 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_RELAX_REMOVE); | |
13793 | break; | |
13794 | case R_NDS32_LOADSTORE: | |
13795 | case R_NDS32_PTR: | |
13796 | case R_NDS32_PTR_RESOLVED: | |
13797 | case R_NDS32_NONE: | |
13798 | case R_NDS32_LABEL: | |
13799 | break; | |
13800 | default: | |
13801 | BFD_ASSERT(0); | |
13802 | break; | |
13803 | } | |
13804 | break; | |
13805 | default: | |
13806 | break; | |
13807 | } | |
13808 | break; | |
13809 | /* IEGP to IE/LE. */ | |
13810 | case GOT_TLS_IEGP: | |
13811 | switch (eff_tls_type) | |
13812 | { | |
13813 | case GOT_TLS_IE: | |
13814 | switch (r_type) | |
13815 | { | |
13816 | case R_NDS32_TLS_IEGP_HI20: | |
13817 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13818 | R_NDS32_TLS_IE_HI20); | |
13819 | break; | |
13820 | case R_NDS32_TLS_IEGP_LO12: | |
13821 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13822 | R_NDS32_TLS_IE_LO12); | |
13823 | break; | |
13824 | case R_NDS32_PTR_RESOLVED: | |
13825 | { | |
13826 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13827 | ||
13828 | add_rt = N32_RT5 (insn); | |
13829 | insn = N32_TYPE2 (LWI, add_rt, sethi_rt, 0); | |
13830 | bfd_putb32 (insn, contents + irel->r_offset); | |
13831 | } | |
13832 | break; | |
13833 | case R_NDS32_TLS_IEGP_LW: | |
13834 | break; | |
13835 | case R_NDS32_LOADSTORE: | |
13836 | case R_NDS32_PTR: | |
13837 | case R_NDS32_NONE: | |
13838 | case R_NDS32_LABEL: | |
13839 | break; | |
13840 | default: | |
13841 | BFD_ASSERT(0); | |
13842 | break; | |
13843 | } | |
13844 | break; | |
13845 | case GOT_TLS_LE: | |
13846 | switch (r_type) | |
13847 | { | |
13848 | case R_NDS32_TLS_IEGP_HI20: | |
13849 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_HI20); | |
13850 | break; | |
13851 | case R_NDS32_TLS_IEGP_LO12: | |
13852 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_LO12); | |
13853 | break; | |
13854 | case R_NDS32_TLS_IEGP_LW: | |
13855 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13856 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_RELAX_REMOVE); | |
13857 | break; | |
13858 | case R_NDS32_LOADSTORE: | |
13859 | case R_NDS32_PTR: | |
13860 | case R_NDS32_NONE: | |
13861 | case R_NDS32_LABEL: | |
13862 | case R_NDS32_PTR_RESOLVED: | |
13863 | break; | |
13864 | default: | |
13865 | BFD_ASSERT(0); | |
13866 | break; | |
13867 | } | |
13868 | break; | |
13869 | default: | |
13870 | break; | |
13871 | } | |
13872 | break; | |
13873 | /* IE to LE. */ | |
13874 | case GOT_TLS_IE: | |
13875 | switch (eff_tls_type) | |
13876 | { | |
13877 | case GOT_TLS_LE: | |
13878 | switch (r_type) | |
13879 | { | |
13880 | case R_NDS32_TLS_IE_HI20: | |
13881 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_HI20); | |
13882 | break; | |
13883 | case R_NDS32_TLS_IE_LO12S2: | |
13884 | { | |
13885 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13886 | ||
13887 | add_rt = N32_RT5 (insn); | |
13888 | insn = N32_TYPE2 (ORI, add_rt, sethi_rt, 0); | |
13889 | bfd_putb32 (insn, contents + irel->r_offset); | |
13890 | ||
13891 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_LO12); | |
13892 | } | |
13893 | break; | |
13894 | case R_NDS32_LOADSTORE: | |
13895 | case R_NDS32_PTR: | |
13896 | case R_NDS32_NONE: | |
13897 | case R_NDS32_LABEL: | |
13898 | break; | |
13899 | default: | |
13900 | BFD_ASSERT(0); | |
13901 | break; | |
13902 | } | |
13903 | break; | |
13904 | default: | |
13905 | break; | |
13906 | } | |
13907 | break; | |
13908 | default: | |
13909 | break; | |
13910 | } | |
13911 | } | |
13912 | pNextSig = pNextSig->next_sibling; | |
13913 | } | |
13914 | ||
13915 | #if 1 | |
13916 | pNext = pNext->next; | |
13917 | #else | |
13918 | while (pNext) | |
13919 | { | |
13920 | if (pNext->id != cur_grp_id) | |
13921 | break; | |
13922 | pNext = pNext->next; | |
13923 | } | |
13924 | #endif | |
13925 | } | |
13926 | ||
dc1e8a47 | 13927 | finish: |
fbaf61ad NC |
13928 | if (incontents) |
13929 | contents = NULL; | |
13930 | ||
c9594989 | 13931 | if (elf_section_data (insec)->relocs != internal_relocs) |
fbaf61ad NC |
13932 | free (internal_relocs); |
13933 | ||
c9594989 | 13934 | if (elf_section_data (insec)->this_hdr.contents != contents) |
fbaf61ad NC |
13935 | free (contents); |
13936 | ||
c9594989 | 13937 | if (symtab_hdr->contents != (bfd_byte *) local_syms) |
fbaf61ad NC |
13938 | free (local_syms); |
13939 | ||
13940 | if (chain.next) | |
13941 | { | |
13942 | pNext = chain.next; | |
13943 | relax_group_list_t *pDel; | |
13944 | while (pNext) | |
13945 | { | |
13946 | pDel = pNext; | |
13947 | pNext = pNext->next; | |
13948 | free (pDel); | |
13949 | } | |
13950 | } | |
13951 | ||
13952 | return result; | |
13953 | ||
dc1e8a47 | 13954 | error_return: |
0a1b45a2 | 13955 | result = false; |
fbaf61ad NC |
13956 | goto finish; |
13957 | } | |
13958 | ||
13959 | /* End TLS model conversion. */ | |
13960 | ||
35c08157 KLC |
13961 | #define ELF_ARCH bfd_arch_nds32 |
13962 | #define ELF_MACHINE_CODE EM_NDS32 | |
13963 | #define ELF_MAXPAGESIZE 0x1000 | |
07d6d2b8 | 13964 | #define ELF_TARGET_ID NDS32_ELF_DATA |
35c08157 | 13965 | |
6d00b590 | 13966 | #define TARGET_BIG_SYM nds32_elf32_be_vec |
35c08157 | 13967 | #define TARGET_BIG_NAME "elf32-nds32be" |
6d00b590 | 13968 | #define TARGET_LITTLE_SYM nds32_elf32_le_vec |
35c08157 KLC |
13969 | #define TARGET_LITTLE_NAME "elf32-nds32le" |
13970 | ||
13971 | #define elf_info_to_howto nds32_info_to_howto | |
13972 | #define elf_info_to_howto_rel nds32_info_to_howto_rel | |
13973 | ||
13974 | #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create | |
13975 | #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data | |
13976 | #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data | |
13977 | #define bfd_elf32_bfd_relax_section nds32_elf_relax_section | |
13978 | #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags | |
13979 | ||
07d6d2b8 | 13980 | #define bfd_elf32_mkobject nds32_elf_mkobject |
35c08157 KLC |
13981 | #define elf_backend_action_discarded nds32_elf_action_discarded |
13982 | #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook | |
13983 | #define elf_backend_check_relocs nds32_elf_check_relocs | |
13984 | #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol | |
13985 | #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections | |
13986 | #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections | |
13987 | #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol | |
af969b14 | 13988 | #define elf_backend_late_size_sections nds32_elf_late_size_sections |
35c08157 KLC |
13989 | #define elf_backend_relocate_section nds32_elf_relocate_section |
13990 | #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook | |
35c08157 KLC |
13991 | #define elf_backend_grok_prstatus nds32_elf_grok_prstatus |
13992 | #define elf_backend_grok_psinfo nds32_elf_grok_psinfo | |
13993 | #define elf_backend_reloc_type_class nds32_elf_reloc_type_class | |
13994 | #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol | |
13995 | #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook | |
13996 | #define elf_backend_output_arch_syms nds32_elf_output_arch_syms | |
13997 | #define elf_backend_object_p nds32_elf_object_p | |
13998 | #define elf_backend_final_write_processing nds32_elf_final_write_processing | |
13999 | #define elf_backend_special_sections nds32_elf_special_sections | |
bf577467 | 14000 | #define elf_backend_section_flags nds32_elf_section_flags |
1c8f6a4d | 14001 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
07d6d2b8 | 14002 | nds32_elf_get_relocated_section_contents |
fbaf61ad NC |
14003 | #define bfd_elf32_bfd_is_target_special_symbol nds32_elf_is_target_special_symbol |
14004 | #define elf_backend_maybe_function_sym nds32_elf_maybe_function_sym | |
35c08157 KLC |
14005 | |
14006 | #define elf_backend_can_gc_sections 1 | |
14007 | #define elf_backend_can_refcount 1 | |
14008 | #define elf_backend_want_got_plt 1 | |
14009 | #define elf_backend_plt_readonly 1 | |
14010 | #define elf_backend_want_plt_sym 0 | |
14011 | #define elf_backend_got_header_size 12 | |
14012 | #define elf_backend_may_use_rel_p 1 | |
14013 | #define elf_backend_default_use_rela_p 1 | |
14014 | #define elf_backend_may_use_rela_p 1 | |
fbaf61ad | 14015 | #define elf_backend_dtrel_excludes_plt 0 |
35c08157 KLC |
14016 | |
14017 | #include "elf32-target.h" | |
14018 | ||
14019 | #undef ELF_MAXPAGESIZE | |
14020 | #define ELF_MAXPAGESIZE 0x2000 | |
14021 | ||
fbaf61ad | 14022 | #undef TARGET_BIG_SYM |
6d00b590 | 14023 | #define TARGET_BIG_SYM nds32_elf32_linux_be_vec |
fbaf61ad | 14024 | #undef TARGET_BIG_NAME |
35c08157 | 14025 | #define TARGET_BIG_NAME "elf32-nds32be-linux" |
fbaf61ad | 14026 | #undef TARGET_LITTLE_SYM |
6d00b590 | 14027 | #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec |
fbaf61ad | 14028 | #undef TARGET_LITTLE_NAME |
35c08157 | 14029 | #define TARGET_LITTLE_NAME "elf32-nds32le-linux" |
fbaf61ad | 14030 | #undef elf32_bed |
35c08157 KLC |
14031 | #define elf32_bed elf32_nds32_lin_bed |
14032 | ||
14033 | #include "elf32-target.h" |