projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| cec5225b | 1 | /* AArch64-specific support for NN-bit ELF. |
| d87bef3a | 2 | Copyright (C) 2009-2023 Free Software Foundation, Inc. |
| a06ea964 NC |
3 | Contributed by ARM Ltd. |
| 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; see the file COPYING3. If not, | |
| 19 | see <http://www.gnu.org/licenses/>. */ | |
| 20 | ||
| 21 | /* Notes on implementation: | |
| 22 | ||
| 23 | Thread Local Store (TLS) | |
| 24 | ||
| 25 | Overview: | |
| 26 | ||
| 27 | The implementation currently supports both traditional TLS and TLS | |
| 28 | descriptors, but only general dynamic (GD). | |
| 29 | ||
| 30 | For traditional TLS the assembler will present us with code | |
| 31 | fragments of the form: | |
| 32 | ||
| 33 | adrp x0, :tlsgd:foo | |
| 07d6d2b8 | 34 | R_AARCH64_TLSGD_ADR_PAGE21(foo) |
| a06ea964 | 35 | add x0, :tlsgd_lo12:foo |
| 07d6d2b8 | 36 | R_AARCH64_TLSGD_ADD_LO12_NC(foo) |
| a06ea964 NC |
37 | bl __tls_get_addr |
| 38 | nop | |
| 39 | ||
| 40 | For TLS descriptors the assembler will present us with code | |
| 41 | fragments of the form: | |
| 42 | ||
| 07d6d2b8 AM |
43 | adrp x0, :tlsdesc:foo R_AARCH64_TLSDESC_ADR_PAGE21(foo) |
| 44 | ldr x1, [x0, #:tlsdesc_lo12:foo] R_AARCH64_TLSDESC_LD64_LO12(foo) | |
| 45 | add x0, x0, #:tlsdesc_lo12:foo R_AARCH64_TLSDESC_ADD_LO12(foo) | |
| a06ea964 | 46 | .tlsdesccall foo |
| 07d6d2b8 | 47 | blr x1 R_AARCH64_TLSDESC_CALL(foo) |
| a06ea964 NC |
48 | |
| 49 | The relocations R_AARCH64_TLSGD_{ADR_PREL21,ADD_LO12_NC} against foo | |
| 50 | indicate that foo is thread local and should be accessed via the | |
| 51 | traditional TLS mechanims. | |
| 52 | ||
| a6bb11b2 | 53 | The relocations R_AARCH64_TLSDESC_{ADR_PAGE21,LD64_LO12_NC,ADD_LO12_NC} |
| a06ea964 NC |
54 | against foo indicate that 'foo' is thread local and should be accessed |
| 55 | via a TLS descriptor mechanism. | |
| 56 | ||
| 57 | The precise instruction sequence is only relevant from the | |
| 58 | perspective of linker relaxation which is currently not implemented. | |
| 59 | ||
| 60 | The static linker must detect that 'foo' is a TLS object and | |
| 61 | allocate a double GOT entry. The GOT entry must be created for both | |
| 62 | global and local TLS symbols. Note that this is different to none | |
| 63 | TLS local objects which do not need a GOT entry. | |
| 64 | ||
| 65 | In the traditional TLS mechanism, the double GOT entry is used to | |
| 66 | provide the tls_index structure, containing module and offset | |
| a6bb11b2 | 67 | entries. The static linker places the relocation R_AARCH64_TLS_DTPMOD |
| a06ea964 NC |
68 | on the module entry. The loader will subsequently fixup this |
| 69 | relocation with the module identity. | |
| 70 | ||
| 71 | For global traditional TLS symbols the static linker places an | |
| a6bb11b2 | 72 | R_AARCH64_TLS_DTPREL relocation on the offset entry. The loader |
| a06ea964 NC |
73 | will subsequently fixup the offset. For local TLS symbols the static |
| 74 | linker fixes up offset. | |
| 75 | ||
| 76 | In the TLS descriptor mechanism the double GOT entry is used to | |
| 77 | provide the descriptor. The static linker places the relocation | |
| 78 | R_AARCH64_TLSDESC on the first GOT slot. The loader will | |
| 79 | subsequently fix this up. | |
| 80 | ||
| 81 | Implementation: | |
| 82 | ||
| 83 | The handling of TLS symbols is implemented across a number of | |
| 84 | different backend functions. The following is a top level view of | |
| 85 | what processing is performed where. | |
| 86 | ||
| 87 | The TLS implementation maintains state information for each TLS | |
| 88 | symbol. The state information for local and global symbols is kept | |
| 89 | in different places. Global symbols use generic BFD structures while | |
| 90 | local symbols use backend specific structures that are allocated and | |
| 91 | maintained entirely by the backend. | |
| 92 | ||
| 93 | The flow: | |
| 94 | ||
| cec5225b | 95 | elfNN_aarch64_check_relocs() |
| a06ea964 NC |
96 | |
| 97 | This function is invoked for each relocation. | |
| 98 | ||
| 99 | The TLS relocations R_AARCH64_TLSGD_{ADR_PREL21,ADD_LO12_NC} and | |
| a6bb11b2 | 100 | R_AARCH64_TLSDESC_{ADR_PAGE21,LD64_LO12_NC,ADD_LO12_NC} are |
| a06ea964 NC |
101 | spotted. One time creation of local symbol data structures are |
| 102 | created when the first local symbol is seen. | |
| 103 | ||
| 104 | The reference count for a symbol is incremented. The GOT type for | |
| 105 | each symbol is marked as general dynamic. | |
| 106 | ||
| cec5225b | 107 | elfNN_aarch64_allocate_dynrelocs () |
| a06ea964 NC |
108 | |
| 109 | For each global with positive reference count we allocate a double | |
| 110 | GOT slot. For a traditional TLS symbol we allocate space for two | |
| 111 | relocation entries on the GOT, for a TLS descriptor symbol we | |
| 112 | allocate space for one relocation on the slot. Record the GOT offset | |
| 113 | for this symbol. | |
| 114 | ||
| cec5225b | 115 | elfNN_aarch64_size_dynamic_sections () |
| a06ea964 NC |
116 | |
| 117 | Iterate all input BFDS, look for in the local symbol data structure | |
| 118 | constructed earlier for local TLS symbols and allocate them double | |
| 119 | GOT slots along with space for a single GOT relocation. Update the | |
| 120 | local symbol structure to record the GOT offset allocated. | |
| 121 | ||
| cec5225b | 122 | elfNN_aarch64_relocate_section () |
| a06ea964 | 123 | |
| cec5225b | 124 | Calls elfNN_aarch64_final_link_relocate () |
| a06ea964 NC |
125 | |
| 126 | Emit the relevant TLS relocations against the GOT for each TLS | |
| 127 | symbol. For local TLS symbols emit the GOT offset directly. The GOT | |
| 128 | relocations are emitted once the first time a TLS symbol is | |
| 129 | encountered. The implementation uses the LSB of the GOT offset to | |
| 130 | flag that the relevant GOT relocations for a symbol have been | |
| 131 | emitted. All of the TLS code that uses the GOT offset needs to take | |
| 132 | care to mask out this flag bit before using the offset. | |
| 133 | ||
| cec5225b | 134 | elfNN_aarch64_final_link_relocate () |
| a06ea964 NC |
135 | |
| 136 | Fixup the R_AARCH64_TLSGD_{ADR_PREL21, ADD_LO12_NC} relocations. */ | |
| 137 | ||
| 138 | #include "sysdep.h" | |
| 139 | #include "bfd.h" | |
| 140 | #include "libiberty.h" | |
| 141 | #include "libbfd.h" | |
| a06ea964 NC |
142 | #include "elf-bfd.h" |
| 143 | #include "bfdlink.h" | |
| 1419bbe5 | 144 | #include "objalloc.h" |
| a06ea964 | 145 | #include "elf/aarch64.h" |
| caed7120 | 146 | #include "elfxx-aarch64.h" |
| a8bfaadb | 147 | #include "cpu-aarch64.h" |
| a06ea964 | 148 | |
| cec5225b YZ |
149 | #define ARCH_SIZE NN |
| 150 | ||
| 151 | #if ARCH_SIZE == 64 | |
| 152 | #define AARCH64_R(NAME) R_AARCH64_ ## NAME | |
| 153 | #define AARCH64_R_STR(NAME) "R_AARCH64_" #NAME | |
| a6bb11b2 YZ |
154 | #define HOWTO64(...) HOWTO (__VA_ARGS__) |
| 155 | #define HOWTO32(...) EMPTY_HOWTO (0) | |
| cec5225b | 156 | #define LOG_FILE_ALIGN 3 |
| f955cccf | 157 | #define BFD_RELOC_AARCH64_TLSDESC_LD64_LO12_NC BFD_RELOC_AARCH64_TLSDESC_LD64_LO12 |
| cec5225b YZ |
158 | #endif |
| 159 | ||
| 160 | #if ARCH_SIZE == 32 | |
| 161 | #define AARCH64_R(NAME) R_AARCH64_P32_ ## NAME | |
| 162 | #define AARCH64_R_STR(NAME) "R_AARCH64_P32_" #NAME | |
| a6bb11b2 YZ |
163 | #define HOWTO64(...) EMPTY_HOWTO (0) |
| 164 | #define HOWTO32(...) HOWTO (__VA_ARGS__) | |
| cec5225b | 165 | #define LOG_FILE_ALIGN 2 |
| 07d6d2b8 AM |
166 | #define BFD_RELOC_AARCH64_TLSDESC_LD32_LO12 BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC |
| 167 | #define R_AARCH64_P32_TLSDESC_ADD_LO12 R_AARCH64_P32_TLSDESC_ADD_LO12_NC | |
| cec5225b YZ |
168 | #endif |
| 169 | ||
| a6bb11b2 | 170 | #define IS_AARCH64_TLS_RELOC(R_TYPE) \ |
| 4c0a9a6f JW |
171 | ((R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC \ |
| 172 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21 \ | |
| 3c12b054 | 173 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PREL21 \ |
| 3e8286c0 | 174 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC \ |
| 1aa66fb1 | 175 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G1 \ |
| a6bb11b2 | 176 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 \ |
| a6bb11b2 | 177 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC \ |
| 4c0a9a6f | 178 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC \ |
| a6bb11b2 | 179 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19 \ |
| 4c0a9a6f JW |
180 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC \ |
| 181 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1 \ | |
| 6ffe9a1b | 182 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12 \ |
| 40fbed84 | 183 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12 \ |
| 753999c1 | 184 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC \ |
| 73f925cc | 185 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC \ |
| f69e4920 | 186 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21 \ |
| 77a69ff8 | 187 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21 \ |
| 07c9aa07 JW |
188 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12 \ |
| 189 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC \ | |
| 190 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12 \ | |
| 191 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC \ | |
| 192 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12 \ | |
| 193 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC \ | |
| 194 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12 \ | |
| 195 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC \ | |
| 6ffe9a1b JW |
196 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0 \ |
| 197 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC \ | |
| 198 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1 \ | |
| 199 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC \ | |
| 200 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2 \ | |
| a6bb11b2 | 201 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12 \ |
| 4c0a9a6f | 202 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12 \ |
| a6bb11b2 | 203 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC \ |
| e04ef022 RL |
204 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12 \ |
| 205 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12_NC \ | |
| 206 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12 \ | |
| 207 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12_NC \ | |
| 208 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12 \ | |
| 209 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12_NC \ | |
| 210 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12 \ | |
| 211 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12_NC \ | |
| a6bb11b2 YZ |
212 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0 \ |
| 213 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC \ | |
| 4c0a9a6f JW |
214 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 \ |
| 215 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC \ | |
| 216 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2 \ | |
| a6bb11b2 YZ |
217 | || (R_TYPE) == BFD_RELOC_AARCH64_TLS_DTPMOD \ |
| 218 | || (R_TYPE) == BFD_RELOC_AARCH64_TLS_DTPREL \ | |
| 219 | || (R_TYPE) == BFD_RELOC_AARCH64_TLS_TPREL \ | |
| a06ea964 NC |
220 | || IS_AARCH64_TLSDESC_RELOC ((R_TYPE))) |
| 221 | ||
| 9331eea1 | 222 | #define IS_AARCH64_TLS_RELAX_RELOC(R_TYPE) \ |
| f955cccf NC |
223 | ((R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD \ |
| 224 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD_LO12 \ | |
| 4af68b9c JW |
225 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21 \ |
| 226 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21 \ | |
| 227 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_CALL \ | |
| 228 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD_PREL19 \ | |
| 229 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC \ | |
| 0484b454 RL |
230 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDR \ |
| 231 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC \ | |
| 232 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G1 \ | |
| 233 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDR \ | |
| 4af68b9c | 234 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21 \ |
| 9331eea1 JW |
235 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PREL21 \ |
| 236 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC \ | |
| ac734732 RL |
237 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC \ |
| 238 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G1 \ | |
| 9331eea1 JW |
239 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 \ |
| 240 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19 \ | |
| 241 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC \ | |
| 259364ad JW |
242 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC \ |
| 243 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21 \ | |
| 4af68b9c | 244 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21) |
| 9331eea1 | 245 | |
| a6bb11b2 | 246 | #define IS_AARCH64_TLSDESC_RELOC(R_TYPE) \ |
| 4c0a9a6f JW |
247 | ((R_TYPE) == BFD_RELOC_AARCH64_TLSDESC \ |
| 248 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD \ | |
| f955cccf | 249 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD_LO12 \ |
| a6bb11b2 | 250 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21 \ |
| 389b8029 | 251 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21 \ |
| 4c0a9a6f | 252 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_CALL \ |
| a6bb11b2 | 253 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC \ |
| f955cccf | 254 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD64_LO12 \ |
| a6bb11b2 | 255 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDR \ |
| 4c0a9a6f JW |
256 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD_PREL19 \ |
| 257 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC \ | |
| 258 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G1) | |
| a06ea964 | 259 | |
| 6353d82b | 260 | #define ELIMINATE_COPY_RELOCS 1 |
| a06ea964 | 261 | |
| a06ea964 | 262 | /* Return size of a relocation entry. HTAB is the bfd's |
| cec5225b YZ |
263 | elf_aarch64_link_hash_entry. */ |
| 264 | #define RELOC_SIZE(HTAB) (sizeof (ElfNN_External_Rela)) | |
| a06ea964 | 265 | |
| cec5225b | 266 | /* GOT Entry size - 8 bytes in ELF64 and 4 bytes in ELF32. */ |
| 07d6d2b8 AM |
267 | #define GOT_ENTRY_SIZE (ARCH_SIZE / 8) |
| 268 | #define PLT_ENTRY_SIZE (32) | |
| 269 | #define PLT_SMALL_ENTRY_SIZE (16) | |
| 270 | #define PLT_TLSDESC_ENTRY_SIZE (32) | |
| 37c18eed | 271 | /* PLT sizes with BTI insn. */ |
| 68bb0359 | 272 | #define PLT_BTI_SMALL_ENTRY_SIZE (24) |
| 1dbade74 | 273 | /* PLT sizes with PAC insn. */ |
| 68bb0359 | 274 | #define PLT_PAC_SMALL_ENTRY_SIZE (24) |
| 1dbade74 | 275 | /* PLT sizes with BTI and PAC insn. */ |
| 1dbade74 | 276 | #define PLT_BTI_PAC_SMALL_ENTRY_SIZE (24) |
| a06ea964 | 277 | |
| 2d0ca824 | 278 | /* Encoding of the nop instruction. */ |
| a06ea964 NC |
279 | #define INSN_NOP 0xd503201f |
| 280 | ||
| 281 | #define aarch64_compute_jump_table_size(htab) \ | |
| 282 | (((htab)->root.srelplt == NULL) ? 0 \ | |
| 283 | : (htab)->root.srelplt->reloc_count * GOT_ENTRY_SIZE) | |
| 284 | ||
| 285 | /* The first entry in a procedure linkage table looks like this | |
| 286 | if the distance between the PLTGOT and the PLT is < 4GB use | |
| 287 | these PLT entries. Note that the dynamic linker gets &PLTGOT[2] | |
| 288 | in x16 and needs to work out PLTGOT[1] by using an address of | |
| cec5225b YZ |
289 | [x16,#-GOT_ENTRY_SIZE]. */ |
| 290 | static const bfd_byte elfNN_aarch64_small_plt0_entry[PLT_ENTRY_SIZE] = | |
| a06ea964 NC |
291 | { |
| 292 | 0xf0, 0x7b, 0xbf, 0xa9, /* stp x16, x30, [sp, #-16]! */ | |
| 293 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, (GOT+16) */ | |
| caed7120 | 294 | #if ARCH_SIZE == 64 |
| a06ea964 NC |
295 | 0x11, 0x0A, 0x40, 0xf9, /* ldr x17, [x16, #PLT_GOT+0x10] */ |
| 296 | 0x10, 0x42, 0x00, 0x91, /* add x16, x16,#PLT_GOT+0x10 */ | |
| caed7120 YZ |
297 | #else |
| 298 | 0x11, 0x0A, 0x40, 0xb9, /* ldr w17, [x16, #PLT_GOT+0x8] */ | |
| 299 | 0x10, 0x22, 0x00, 0x11, /* add w16, w16,#PLT_GOT+0x8 */ | |
| 300 | #endif | |
| a06ea964 NC |
301 | 0x20, 0x02, 0x1f, 0xd6, /* br x17 */ |
| 302 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 303 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 304 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 305 | }; | |
| 306 | ||
| 68bb0359 | 307 | static const bfd_byte elfNN_aarch64_small_plt0_bti_entry[PLT_ENTRY_SIZE] = |
| 37c18eed SD |
308 | { |
| 309 | 0x5f, 0x24, 0x03, 0xd5, /* bti c. */ | |
| 310 | 0xf0, 0x7b, 0xbf, 0xa9, /* stp x16, x30, [sp, #-16]! */ | |
| 311 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, (GOT+16) */ | |
| 312 | #if ARCH_SIZE == 64 | |
| 313 | 0x11, 0x0A, 0x40, 0xf9, /* ldr x17, [x16, #PLT_GOT+0x10] */ | |
| 314 | 0x10, 0x42, 0x00, 0x91, /* add x16, x16,#PLT_GOT+0x10 */ | |
| 315 | #else | |
| 316 | 0x11, 0x0A, 0x40, 0xb9, /* ldr w17, [x16, #PLT_GOT+0x8] */ | |
| 317 | 0x10, 0x22, 0x00, 0x11, /* add w16, w16,#PLT_GOT+0x8 */ | |
| 318 | #endif | |
| 319 | 0x20, 0x02, 0x1f, 0xd6, /* br x17 */ | |
| 320 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 321 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 1dbade74 SD |
322 | }; |
| 323 | ||
| a06ea964 NC |
324 | /* Per function entry in a procedure linkage table looks like this |
| 325 | if the distance between the PLTGOT and the PLT is < 4GB use | |
| 37c18eed | 326 | these PLT entries. Use BTI versions of the PLTs when enabled. */ |
| cec5225b | 327 | static const bfd_byte elfNN_aarch64_small_plt_entry[PLT_SMALL_ENTRY_SIZE] = |
| a06ea964 NC |
328 | { |
| 329 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, PLTGOT + n * 8 */ | |
| caed7120 | 330 | #if ARCH_SIZE == 64 |
| a06ea964 NC |
331 | 0x11, 0x02, 0x40, 0xf9, /* ldr x17, [x16, PLTGOT + n * 8] */ |
| 332 | 0x10, 0x02, 0x00, 0x91, /* add x16, x16, :lo12:PLTGOT + n * 8 */ | |
| caed7120 YZ |
333 | #else |
| 334 | 0x11, 0x02, 0x40, 0xb9, /* ldr w17, [x16, PLTGOT + n * 4] */ | |
| 335 | 0x10, 0x02, 0x00, 0x11, /* add w16, w16, :lo12:PLTGOT + n * 4 */ | |
| 336 | #endif | |
| a06ea964 NC |
337 | 0x20, 0x02, 0x1f, 0xd6, /* br x17. */ |
| 338 | }; | |
| 339 | ||
| 37c18eed SD |
340 | static const bfd_byte |
| 341 | elfNN_aarch64_small_plt_bti_entry[PLT_BTI_SMALL_ENTRY_SIZE] = | |
| 342 | { | |
| 343 | 0x5f, 0x24, 0x03, 0xd5, /* bti c. */ | |
| 344 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, PLTGOT + n * 8 */ | |
| 345 | #if ARCH_SIZE == 64 | |
| 346 | 0x11, 0x02, 0x40, 0xf9, /* ldr x17, [x16, PLTGOT + n * 8] */ | |
| 347 | 0x10, 0x02, 0x00, 0x91, /* add x16, x16, :lo12:PLTGOT + n * 8 */ | |
| 348 | #else | |
| 349 | 0x11, 0x02, 0x40, 0xb9, /* ldr w17, [x16, PLTGOT + n * 4] */ | |
| 350 | 0x10, 0x02, 0x00, 0x11, /* add w16, w16, :lo12:PLTGOT + n * 4 */ | |
| 351 | #endif | |
| 352 | 0x20, 0x02, 0x1f, 0xd6, /* br x17. */ | |
| 68bb0359 | 353 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ |
| 37c18eed SD |
354 | }; |
| 355 | ||
| 1dbade74 SD |
356 | static const bfd_byte |
| 357 | elfNN_aarch64_small_plt_pac_entry[PLT_PAC_SMALL_ENTRY_SIZE] = | |
| 358 | { | |
| 359 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, PLTGOT + n * 8 */ | |
| 360 | #if ARCH_SIZE == 64 | |
| 361 | 0x11, 0x02, 0x40, 0xf9, /* ldr x17, [x16, PLTGOT + n * 8] */ | |
| 362 | 0x10, 0x02, 0x00, 0x91, /* add x16, x16, :lo12:PLTGOT + n * 8 */ | |
| 363 | #else | |
| 364 | 0x11, 0x02, 0x40, 0xb9, /* ldr w17, [x16, PLTGOT + n * 4] */ | |
| 365 | 0x10, 0x02, 0x00, 0x11, /* add w16, w16, :lo12:PLTGOT + n * 4 */ | |
| 366 | #endif | |
| 367 | 0x9f, 0x21, 0x03, 0xd5, /* autia1716 */ | |
| 368 | 0x20, 0x02, 0x1f, 0xd6, /* br x17. */ | |
| 68bb0359 | 369 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ |
| 1dbade74 SD |
370 | }; |
| 371 | ||
| 372 | static const bfd_byte | |
| 373 | elfNN_aarch64_small_plt_bti_pac_entry[PLT_BTI_PAC_SMALL_ENTRY_SIZE] = | |
| 374 | { | |
| 375 | 0x5f, 0x24, 0x03, 0xd5, /* bti c. */ | |
| 376 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, PLTGOT + n * 8 */ | |
| 377 | #if ARCH_SIZE == 64 | |
| 378 | 0x11, 0x02, 0x40, 0xf9, /* ldr x17, [x16, PLTGOT + n * 8] */ | |
| 379 | 0x10, 0x02, 0x00, 0x91, /* add x16, x16, :lo12:PLTGOT + n * 8 */ | |
| 380 | #else | |
| 381 | 0x11, 0x02, 0x40, 0xb9, /* ldr w17, [x16, PLTGOT + n * 4] */ | |
| 382 | 0x10, 0x02, 0x00, 0x11, /* add w16, w16, :lo12:PLTGOT + n * 4 */ | |
| 383 | #endif | |
| 384 | 0x9f, 0x21, 0x03, 0xd5, /* autia1716 */ | |
| 385 | 0x20, 0x02, 0x1f, 0xd6, /* br x17. */ | |
| 386 | }; | |
| 387 | ||
| a06ea964 | 388 | static const bfd_byte |
| cec5225b | 389 | elfNN_aarch64_tlsdesc_small_plt_entry[PLT_TLSDESC_ENTRY_SIZE] = |
| a06ea964 NC |
390 | { |
| 391 | 0xe2, 0x0f, 0xbf, 0xa9, /* stp x2, x3, [sp, #-16]! */ | |
| 392 | 0x02, 0x00, 0x00, 0x90, /* adrp x2, 0 */ | |
| 393 | 0x03, 0x00, 0x00, 0x90, /* adrp x3, 0 */ | |
| caed7120 YZ |
394 | #if ARCH_SIZE == 64 |
| 395 | 0x42, 0x00, 0x40, 0xf9, /* ldr x2, [x2, #0] */ | |
| a06ea964 | 396 | 0x63, 0x00, 0x00, 0x91, /* add x3, x3, 0 */ |
| caed7120 YZ |
397 | #else |
| 398 | 0x42, 0x00, 0x40, 0xb9, /* ldr w2, [x2, #0] */ | |
| 399 | 0x63, 0x00, 0x00, 0x11, /* add w3, w3, 0 */ | |
| 400 | #endif | |
| 401 | 0x40, 0x00, 0x1f, 0xd6, /* br x2 */ | |
| a06ea964 NC |
402 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ |
| 403 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 404 | }; | |
| 405 | ||
| 37c18eed | 406 | static const bfd_byte |
| 68bb0359 | 407 | elfNN_aarch64_tlsdesc_small_plt_bti_entry[PLT_TLSDESC_ENTRY_SIZE] = |
| 37c18eed SD |
408 | { |
| 409 | 0x5f, 0x24, 0x03, 0xd5, /* bti c. */ | |
| 410 | 0xe2, 0x0f, 0xbf, 0xa9, /* stp x2, x3, [sp, #-16]! */ | |
| 411 | 0x02, 0x00, 0x00, 0x90, /* adrp x2, 0 */ | |
| 412 | 0x03, 0x00, 0x00, 0x90, /* adrp x3, 0 */ | |
| 413 | #if ARCH_SIZE == 64 | |
| 414 | 0x42, 0x00, 0x40, 0xf9, /* ldr x2, [x2, #0] */ | |
| 415 | 0x63, 0x00, 0x00, 0x91, /* add x3, x3, 0 */ | |
| 416 | #else | |
| 417 | 0x42, 0x00, 0x40, 0xb9, /* ldr w2, [x2, #0] */ | |
| 418 | 0x63, 0x00, 0x00, 0x11, /* add w3, w3, 0 */ | |
| 419 | #endif | |
| 420 | 0x40, 0x00, 0x1f, 0xd6, /* br x2 */ | |
| 421 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 37c18eed SD |
422 | }; |
| 423 | ||
| 07d6d2b8 AM |
424 | #define elf_info_to_howto elfNN_aarch64_info_to_howto |
| 425 | #define elf_info_to_howto_rel elfNN_aarch64_info_to_howto | |
| a06ea964 NC |
426 | |
| 427 | #define AARCH64_ELF_ABI_VERSION 0 | |
| a06ea964 NC |
428 | |
| 429 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */ | |
| 430 | #define ALL_ONES (~ (bfd_vma) 0) | |
| 431 | ||
| a6bb11b2 YZ |
432 | /* Indexed by the bfd interal reloc enumerators. |
| 433 | Therefore, the table needs to be synced with BFD_RELOC_AARCH64_* | |
| 434 | in reloc.c. */ | |
| a06ea964 | 435 | |
| a6bb11b2 | 436 | static reloc_howto_type elfNN_aarch64_howto_table[] = |
| a06ea964 | 437 | { |
| a6bb11b2 | 438 | EMPTY_HOWTO (0), |
| a06ea964 | 439 | |
| a6bb11b2 | 440 | /* Basic data relocations. */ |
| a06ea964 | 441 | |
| b7f28d87 JW |
442 | /* Deprecated, but retained for backwards compatibility. */ |
| 443 | HOWTO64 (R_AARCH64_NULL, /* type */ | |
| a06ea964 | 444 | 0, /* rightshift */ |
| c94cb026 | 445 | 0, /* size */ |
| a6bb11b2 | 446 | 0, /* bitsize */ |
| 0a1b45a2 | 447 | false, /* pc_relative */ |
| a06ea964 NC |
448 | 0, /* bitpos */ |
| 449 | complain_overflow_dont, /* complain_on_overflow */ | |
| 450 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 451 | "R_AARCH64_NULL", /* name */ |
| 0a1b45a2 | 452 | false, /* partial_inplace */ |
| a06ea964 | 453 | 0, /* src_mask */ |
| a6bb11b2 | 454 | 0, /* dst_mask */ |
| 0a1b45a2 | 455 | false), /* pcrel_offset */ |
| a6bb11b2 | 456 | HOWTO (R_AARCH64_NONE, /* type */ |
| a06ea964 | 457 | 0, /* rightshift */ |
| c94cb026 | 458 | 0, /* size */ |
| a06ea964 | 459 | 0, /* bitsize */ |
| 0a1b45a2 | 460 | false, /* pc_relative */ |
| a06ea964 NC |
461 | 0, /* bitpos */ |
| 462 | complain_overflow_dont, /* complain_on_overflow */ | |
| 463 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 464 | "R_AARCH64_NONE", /* name */ |
| 0a1b45a2 | 465 | false, /* partial_inplace */ |
| a06ea964 NC |
466 | 0, /* src_mask */ |
| 467 | 0, /* dst_mask */ | |
| 0a1b45a2 | 468 | false), /* pcrel_offset */ |
| a06ea964 NC |
469 | |
| 470 | /* .xword: (S+A) */ | |
| a6bb11b2 | 471 | HOWTO64 (AARCH64_R (ABS64), /* type */ |
| a06ea964 | 472 | 0, /* rightshift */ |
| c94cb026 | 473 | 8, /* size */ |
| a06ea964 | 474 | 64, /* bitsize */ |
| 0a1b45a2 | 475 | false, /* pc_relative */ |
| a06ea964 NC |
476 | 0, /* bitpos */ |
| 477 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 478 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 479 | AARCH64_R_STR (ABS64), /* name */ |
| 0a1b45a2 | 480 | false, /* partial_inplace */ |
| 13a3cad6 | 481 | 0, /* src_mask */ |
| a06ea964 | 482 | ALL_ONES, /* dst_mask */ |
| 0a1b45a2 | 483 | false), /* pcrel_offset */ |
| a06ea964 NC |
484 | |
| 485 | /* .word: (S+A) */ | |
| a6bb11b2 | 486 | HOWTO (AARCH64_R (ABS32), /* type */ |
| a06ea964 | 487 | 0, /* rightshift */ |
| c94cb026 | 488 | 4, /* size */ |
| a06ea964 | 489 | 32, /* bitsize */ |
| 0a1b45a2 | 490 | false, /* pc_relative */ |
| a06ea964 NC |
491 | 0, /* bitpos */ |
| 492 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 493 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 494 | AARCH64_R_STR (ABS32), /* name */ |
| 0a1b45a2 | 495 | false, /* partial_inplace */ |
| 13a3cad6 | 496 | 0, /* src_mask */ |
| a06ea964 | 497 | 0xffffffff, /* dst_mask */ |
| 0a1b45a2 | 498 | false), /* pcrel_offset */ |
| a06ea964 NC |
499 | |
| 500 | /* .half: (S+A) */ | |
| a6bb11b2 | 501 | HOWTO (AARCH64_R (ABS16), /* type */ |
| a06ea964 | 502 | 0, /* rightshift */ |
| c94cb026 | 503 | 2, /* size */ |
| a06ea964 | 504 | 16, /* bitsize */ |
| 0a1b45a2 | 505 | false, /* pc_relative */ |
| a06ea964 NC |
506 | 0, /* bitpos */ |
| 507 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 508 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 509 | AARCH64_R_STR (ABS16), /* name */ |
| 0a1b45a2 | 510 | false, /* partial_inplace */ |
| 13a3cad6 | 511 | 0, /* src_mask */ |
| a06ea964 | 512 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 513 | false), /* pcrel_offset */ |
| a06ea964 NC |
514 | |
| 515 | /* .xword: (S+A-P) */ | |
| a6bb11b2 | 516 | HOWTO64 (AARCH64_R (PREL64), /* type */ |
| a06ea964 | 517 | 0, /* rightshift */ |
| c94cb026 | 518 | 8, /* size */ |
| a06ea964 | 519 | 64, /* bitsize */ |
| 0a1b45a2 | 520 | true, /* pc_relative */ |
| a06ea964 NC |
521 | 0, /* bitpos */ |
| 522 | complain_overflow_signed, /* complain_on_overflow */ | |
| 523 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 524 | AARCH64_R_STR (PREL64), /* name */ |
| 0a1b45a2 | 525 | false, /* partial_inplace */ |
| 13a3cad6 | 526 | 0, /* src_mask */ |
| a06ea964 | 527 | ALL_ONES, /* dst_mask */ |
| 0a1b45a2 | 528 | true), /* pcrel_offset */ |
| a06ea964 NC |
529 | |
| 530 | /* .word: (S+A-P) */ | |
| a6bb11b2 | 531 | HOWTO (AARCH64_R (PREL32), /* type */ |
| a06ea964 | 532 | 0, /* rightshift */ |
| c94cb026 | 533 | 4, /* size */ |
| a06ea964 | 534 | 32, /* bitsize */ |
| 0a1b45a2 | 535 | true, /* pc_relative */ |
| a06ea964 NC |
536 | 0, /* bitpos */ |
| 537 | complain_overflow_signed, /* complain_on_overflow */ | |
| 538 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 539 | AARCH64_R_STR (PREL32), /* name */ |
| 0a1b45a2 | 540 | false, /* partial_inplace */ |
| 13a3cad6 | 541 | 0, /* src_mask */ |
| a06ea964 | 542 | 0xffffffff, /* dst_mask */ |
| 0a1b45a2 | 543 | true), /* pcrel_offset */ |
| a06ea964 NC |
544 | |
| 545 | /* .half: (S+A-P) */ | |
| a6bb11b2 | 546 | HOWTO (AARCH64_R (PREL16), /* type */ |
| a06ea964 | 547 | 0, /* rightshift */ |
| c94cb026 | 548 | 2, /* size */ |
| a06ea964 | 549 | 16, /* bitsize */ |
| 0a1b45a2 | 550 | true, /* pc_relative */ |
| a06ea964 NC |
551 | 0, /* bitpos */ |
| 552 | complain_overflow_signed, /* complain_on_overflow */ | |
| 553 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 554 | AARCH64_R_STR (PREL16), /* name */ |
| 0a1b45a2 | 555 | false, /* partial_inplace */ |
| 13a3cad6 | 556 | 0, /* src_mask */ |
| a06ea964 | 557 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 558 | true), /* pcrel_offset */ |
| a06ea964 NC |
559 | |
| 560 | /* Group relocations to create a 16, 32, 48 or 64 bit | |
| 561 | unsigned data or abs address inline. */ | |
| 562 | ||
| 563 | /* MOVZ: ((S+A) >> 0) & 0xffff */ | |
| a6bb11b2 | 564 | HOWTO (AARCH64_R (MOVW_UABS_G0), /* type */ |
| a06ea964 | 565 | 0, /* rightshift */ |
| c94cb026 | 566 | 4, /* size */ |
| a06ea964 | 567 | 16, /* bitsize */ |
| 0a1b45a2 | 568 | false, /* pc_relative */ |
| a06ea964 NC |
569 | 0, /* bitpos */ |
| 570 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 571 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 572 | AARCH64_R_STR (MOVW_UABS_G0), /* name */ |
| 0a1b45a2 | 573 | false, /* partial_inplace */ |
| 13a3cad6 | 574 | 0, /* src_mask */ |
| a06ea964 | 575 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 576 | false), /* pcrel_offset */ |
| a06ea964 NC |
577 | |
| 578 | /* MOVK: ((S+A) >> 0) & 0xffff [no overflow check] */ | |
| a6bb11b2 | 579 | HOWTO (AARCH64_R (MOVW_UABS_G0_NC), /* type */ |
| a06ea964 | 580 | 0, /* rightshift */ |
| c94cb026 | 581 | 4, /* size */ |
| a06ea964 | 582 | 16, /* bitsize */ |
| 0a1b45a2 | 583 | false, /* pc_relative */ |
| a06ea964 NC |
584 | 0, /* bitpos */ |
| 585 | complain_overflow_dont, /* complain_on_overflow */ | |
| 586 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 587 | AARCH64_R_STR (MOVW_UABS_G0_NC), /* name */ |
| 0a1b45a2 | 588 | false, /* partial_inplace */ |
| 13a3cad6 | 589 | 0, /* src_mask */ |
| a06ea964 | 590 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 591 | false), /* pcrel_offset */ |
| a06ea964 NC |
592 | |
| 593 | /* MOVZ: ((S+A) >> 16) & 0xffff */ | |
| a6bb11b2 | 594 | HOWTO (AARCH64_R (MOVW_UABS_G1), /* type */ |
| a06ea964 | 595 | 16, /* rightshift */ |
| c94cb026 | 596 | 4, /* size */ |
| a06ea964 | 597 | 16, /* bitsize */ |
| 0a1b45a2 | 598 | false, /* pc_relative */ |
| a06ea964 NC |
599 | 0, /* bitpos */ |
| 600 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 601 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 602 | AARCH64_R_STR (MOVW_UABS_G1), /* name */ |
| 0a1b45a2 | 603 | false, /* partial_inplace */ |
| 13a3cad6 | 604 | 0, /* src_mask */ |
| a06ea964 | 605 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 606 | false), /* pcrel_offset */ |
| a06ea964 NC |
607 | |
| 608 | /* MOVK: ((S+A) >> 16) & 0xffff [no overflow check] */ | |
| a6bb11b2 | 609 | HOWTO64 (AARCH64_R (MOVW_UABS_G1_NC), /* type */ |
| a06ea964 | 610 | 16, /* rightshift */ |
| c94cb026 | 611 | 4, /* size */ |
| a06ea964 | 612 | 16, /* bitsize */ |
| 0a1b45a2 | 613 | false, /* pc_relative */ |
| a06ea964 NC |
614 | 0, /* bitpos */ |
| 615 | complain_overflow_dont, /* complain_on_overflow */ | |
| 616 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 617 | AARCH64_R_STR (MOVW_UABS_G1_NC), /* name */ |
| 0a1b45a2 | 618 | false, /* partial_inplace */ |
| 13a3cad6 | 619 | 0, /* src_mask */ |
| a06ea964 | 620 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 621 | false), /* pcrel_offset */ |
| a06ea964 NC |
622 | |
| 623 | /* MOVZ: ((S+A) >> 32) & 0xffff */ | |
| a6bb11b2 | 624 | HOWTO64 (AARCH64_R (MOVW_UABS_G2), /* type */ |
| a06ea964 | 625 | 32, /* rightshift */ |
| c94cb026 | 626 | 4, /* size */ |
| a06ea964 | 627 | 16, /* bitsize */ |
| 0a1b45a2 | 628 | false, /* pc_relative */ |
| a06ea964 NC |
629 | 0, /* bitpos */ |
| 630 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 631 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 632 | AARCH64_R_STR (MOVW_UABS_G2), /* name */ |
| 0a1b45a2 | 633 | false, /* partial_inplace */ |
| 13a3cad6 | 634 | 0, /* src_mask */ |
| a06ea964 | 635 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 636 | false), /* pcrel_offset */ |
| a06ea964 NC |
637 | |
| 638 | /* MOVK: ((S+A) >> 32) & 0xffff [no overflow check] */ | |
| a6bb11b2 | 639 | HOWTO64 (AARCH64_R (MOVW_UABS_G2_NC), /* type */ |
| a06ea964 | 640 | 32, /* rightshift */ |
| c94cb026 | 641 | 4, /* size */ |
| a06ea964 | 642 | 16, /* bitsize */ |
| 0a1b45a2 | 643 | false, /* pc_relative */ |
| a06ea964 NC |
644 | 0, /* bitpos */ |
| 645 | complain_overflow_dont, /* complain_on_overflow */ | |
| 646 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 647 | AARCH64_R_STR (MOVW_UABS_G2_NC), /* name */ |
| 0a1b45a2 | 648 | false, /* partial_inplace */ |
| 13a3cad6 | 649 | 0, /* src_mask */ |
| a06ea964 | 650 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 651 | false), /* pcrel_offset */ |
| a06ea964 NC |
652 | |
| 653 | /* MOVZ: ((S+A) >> 48) & 0xffff */ | |
| a6bb11b2 | 654 | HOWTO64 (AARCH64_R (MOVW_UABS_G3), /* type */ |
| a06ea964 | 655 | 48, /* rightshift */ |
| c94cb026 | 656 | 4, /* size */ |
| a06ea964 | 657 | 16, /* bitsize */ |
| 0a1b45a2 | 658 | false, /* pc_relative */ |
| a06ea964 NC |
659 | 0, /* bitpos */ |
| 660 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 661 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 662 | AARCH64_R_STR (MOVW_UABS_G3), /* name */ |
| 0a1b45a2 | 663 | false, /* partial_inplace */ |
| 13a3cad6 | 664 | 0, /* src_mask */ |
| a06ea964 | 665 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 666 | false), /* pcrel_offset */ |
| a06ea964 NC |
667 | |
| 668 | /* Group relocations to create high part of a 16, 32, 48 or 64 bit | |
| 669 | signed data or abs address inline. Will change instruction | |
| 670 | to MOVN or MOVZ depending on sign of calculated value. */ | |
| 671 | ||
| 672 | /* MOV[ZN]: ((S+A) >> 0) & 0xffff */ | |
| a6bb11b2 | 673 | HOWTO (AARCH64_R (MOVW_SABS_G0), /* type */ |
| a06ea964 | 674 | 0, /* rightshift */ |
| c94cb026 | 675 | 4, /* size */ |
| c5e3a364 | 676 | 17, /* bitsize */ |
| 0a1b45a2 | 677 | false, /* pc_relative */ |
| a06ea964 NC |
678 | 0, /* bitpos */ |
| 679 | complain_overflow_signed, /* complain_on_overflow */ | |
| 680 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 681 | AARCH64_R_STR (MOVW_SABS_G0), /* name */ |
| 0a1b45a2 | 682 | false, /* partial_inplace */ |
| 13a3cad6 | 683 | 0, /* src_mask */ |
| a06ea964 | 684 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 685 | false), /* pcrel_offset */ |
| a06ea964 NC |
686 | |
| 687 | /* MOV[ZN]: ((S+A) >> 16) & 0xffff */ | |
| a6bb11b2 | 688 | HOWTO64 (AARCH64_R (MOVW_SABS_G1), /* type */ |
| a06ea964 | 689 | 16, /* rightshift */ |
| c94cb026 | 690 | 4, /* size */ |
| c5e3a364 | 691 | 17, /* bitsize */ |
| 0a1b45a2 | 692 | false, /* pc_relative */ |
| a06ea964 NC |
693 | 0, /* bitpos */ |
| 694 | complain_overflow_signed, /* complain_on_overflow */ | |
| 695 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 696 | AARCH64_R_STR (MOVW_SABS_G1), /* name */ |
| 0a1b45a2 | 697 | false, /* partial_inplace */ |
| 13a3cad6 | 698 | 0, /* src_mask */ |
| a06ea964 | 699 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 700 | false), /* pcrel_offset */ |
| a06ea964 NC |
701 | |
| 702 | /* MOV[ZN]: ((S+A) >> 32) & 0xffff */ | |
| a6bb11b2 | 703 | HOWTO64 (AARCH64_R (MOVW_SABS_G2), /* type */ |
| a06ea964 | 704 | 32, /* rightshift */ |
| c94cb026 | 705 | 4, /* size */ |
| c5e3a364 | 706 | 17, /* bitsize */ |
| 0a1b45a2 | 707 | false, /* pc_relative */ |
| a06ea964 NC |
708 | 0, /* bitpos */ |
| 709 | complain_overflow_signed, /* complain_on_overflow */ | |
| 710 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 711 | AARCH64_R_STR (MOVW_SABS_G2), /* name */ |
| 0a1b45a2 | 712 | false, /* partial_inplace */ |
| 13a3cad6 | 713 | 0, /* src_mask */ |
| a06ea964 | 714 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 715 | false), /* pcrel_offset */ |
| a06ea964 | 716 | |
| 32247401 RL |
717 | /* Group relocations to create a 16, 32, 48 or 64 bit |
| 718 | PC relative address inline. */ | |
| 719 | ||
| 720 | /* MOV[NZ]: ((S+A-P) >> 0) & 0xffff */ | |
| e30d1fa1 | 721 | HOWTO (AARCH64_R (MOVW_PREL_G0), /* type */ |
| 32247401 | 722 | 0, /* rightshift */ |
| c94cb026 | 723 | 4, /* size */ |
| 32247401 | 724 | 17, /* bitsize */ |
| 0a1b45a2 | 725 | true, /* pc_relative */ |
| 32247401 RL |
726 | 0, /* bitpos */ |
| 727 | complain_overflow_signed, /* complain_on_overflow */ | |
| 728 | bfd_elf_generic_reloc, /* special_function */ | |
| 729 | AARCH64_R_STR (MOVW_PREL_G0), /* name */ | |
| 0a1b45a2 | 730 | false, /* partial_inplace */ |
| 13a3cad6 | 731 | 0, /* src_mask */ |
| 32247401 | 732 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 733 | true), /* pcrel_offset */ |
| 32247401 RL |
734 | |
| 735 | /* MOVK: ((S+A-P) >> 0) & 0xffff [no overflow check] */ | |
| e30d1fa1 | 736 | HOWTO (AARCH64_R (MOVW_PREL_G0_NC), /* type */ |
| 32247401 | 737 | 0, /* rightshift */ |
| c94cb026 | 738 | 4, /* size */ |
| 32247401 | 739 | 16, /* bitsize */ |
| 0a1b45a2 | 740 | true, /* pc_relative */ |
| 32247401 RL |
741 | 0, /* bitpos */ |
| 742 | complain_overflow_dont, /* complain_on_overflow */ | |
| 743 | bfd_elf_generic_reloc, /* special_function */ | |
| 744 | AARCH64_R_STR (MOVW_PREL_G0_NC), /* name */ | |
| 0a1b45a2 | 745 | false, /* partial_inplace */ |
| 13a3cad6 | 746 | 0, /* src_mask */ |
| 32247401 | 747 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 748 | true), /* pcrel_offset */ |
| 32247401 RL |
749 | |
| 750 | /* MOV[NZ]: ((S+A-P) >> 16) & 0xffff */ | |
| e30d1fa1 | 751 | HOWTO (AARCH64_R (MOVW_PREL_G1), /* type */ |
| 32247401 | 752 | 16, /* rightshift */ |
| c94cb026 | 753 | 4, /* size */ |
| 32247401 | 754 | 17, /* bitsize */ |
| 0a1b45a2 | 755 | true, /* pc_relative */ |
| 32247401 RL |
756 | 0, /* bitpos */ |
| 757 | complain_overflow_signed, /* complain_on_overflow */ | |
| 758 | bfd_elf_generic_reloc, /* special_function */ | |
| 759 | AARCH64_R_STR (MOVW_PREL_G1), /* name */ | |
| 0a1b45a2 | 760 | false, /* partial_inplace */ |
| 13a3cad6 | 761 | 0, /* src_mask */ |
| 32247401 | 762 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 763 | true), /* pcrel_offset */ |
| 32247401 RL |
764 | |
| 765 | /* MOVK: ((S+A-P) >> 16) & 0xffff [no overflow check] */ | |
| 766 | HOWTO64 (AARCH64_R (MOVW_PREL_G1_NC), /* type */ | |
| 767 | 16, /* rightshift */ | |
| c94cb026 | 768 | 4, /* size */ |
| 32247401 | 769 | 16, /* bitsize */ |
| 0a1b45a2 | 770 | true, /* pc_relative */ |
| 32247401 RL |
771 | 0, /* bitpos */ |
| 772 | complain_overflow_dont, /* complain_on_overflow */ | |
| 773 | bfd_elf_generic_reloc, /* special_function */ | |
| 774 | AARCH64_R_STR (MOVW_PREL_G1_NC), /* name */ | |
| 0a1b45a2 | 775 | false, /* partial_inplace */ |
| 13a3cad6 | 776 | 0, /* src_mask */ |
| 32247401 | 777 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 778 | true), /* pcrel_offset */ |
| 32247401 RL |
779 | |
| 780 | /* MOV[NZ]: ((S+A-P) >> 32) & 0xffff */ | |
| 781 | HOWTO64 (AARCH64_R (MOVW_PREL_G2), /* type */ | |
| 782 | 32, /* rightshift */ | |
| c94cb026 | 783 | 4, /* size */ |
| 32247401 | 784 | 17, /* bitsize */ |
| 0a1b45a2 | 785 | true, /* pc_relative */ |
| 32247401 RL |
786 | 0, /* bitpos */ |
| 787 | complain_overflow_signed, /* complain_on_overflow */ | |
| 788 | bfd_elf_generic_reloc, /* special_function */ | |
| 789 | AARCH64_R_STR (MOVW_PREL_G2), /* name */ | |
| 0a1b45a2 | 790 | false, /* partial_inplace */ |
| 13a3cad6 | 791 | 0, /* src_mask */ |
| 32247401 | 792 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 793 | true), /* pcrel_offset */ |
| 32247401 RL |
794 | |
| 795 | /* MOVK: ((S+A-P) >> 32) & 0xffff [no overflow check] */ | |
| 796 | HOWTO64 (AARCH64_R (MOVW_PREL_G2_NC), /* type */ | |
| 797 | 32, /* rightshift */ | |
| c94cb026 | 798 | 4, /* size */ |
| 32247401 | 799 | 16, /* bitsize */ |
| 0a1b45a2 | 800 | true, /* pc_relative */ |
| 32247401 RL |
801 | 0, /* bitpos */ |
| 802 | complain_overflow_dont, /* complain_on_overflow */ | |
| 803 | bfd_elf_generic_reloc, /* special_function */ | |
| 804 | AARCH64_R_STR (MOVW_PREL_G2_NC), /* name */ | |
| 0a1b45a2 | 805 | false, /* partial_inplace */ |
| 13a3cad6 | 806 | 0, /* src_mask */ |
| 32247401 | 807 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 808 | true), /* pcrel_offset */ |
| 32247401 RL |
809 | |
| 810 | /* MOV[NZ]: ((S+A-P) >> 48) & 0xffff */ | |
| 811 | HOWTO64 (AARCH64_R (MOVW_PREL_G3), /* type */ | |
| 812 | 48, /* rightshift */ | |
| c94cb026 | 813 | 4, /* size */ |
| 32247401 | 814 | 16, /* bitsize */ |
| 0a1b45a2 | 815 | true, /* pc_relative */ |
| 32247401 RL |
816 | 0, /* bitpos */ |
| 817 | complain_overflow_dont, /* complain_on_overflow */ | |
| 818 | bfd_elf_generic_reloc, /* special_function */ | |
| 819 | AARCH64_R_STR (MOVW_PREL_G3), /* name */ | |
| 0a1b45a2 | 820 | false, /* partial_inplace */ |
| 13a3cad6 | 821 | 0, /* src_mask */ |
| 32247401 | 822 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 823 | true), /* pcrel_offset */ |
| 32247401 | 824 | |
| a06ea964 NC |
825 | /* Relocations to generate 19, 21 and 33 bit PC-relative load/store |
| 826 | addresses: PG(x) is (x & ~0xfff). */ | |
| 827 | ||
| 828 | /* LD-lit: ((S+A-P) >> 2) & 0x7ffff */ | |
| a6bb11b2 | 829 | HOWTO (AARCH64_R (LD_PREL_LO19), /* type */ |
| a06ea964 | 830 | 2, /* rightshift */ |
| c94cb026 | 831 | 4, /* size */ |
| a06ea964 | 832 | 19, /* bitsize */ |
| 0a1b45a2 | 833 | true, /* pc_relative */ |
| a06ea964 NC |
834 | 0, /* bitpos */ |
| 835 | complain_overflow_signed, /* complain_on_overflow */ | |
| 836 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 837 | AARCH64_R_STR (LD_PREL_LO19), /* name */ |
| 0a1b45a2 | 838 | false, /* partial_inplace */ |
| 13a3cad6 | 839 | 0, /* src_mask */ |
| a06ea964 | 840 | 0x7ffff, /* dst_mask */ |
| 0a1b45a2 | 841 | true), /* pcrel_offset */ |
| a06ea964 NC |
842 | |
| 843 | /* ADR: (S+A-P) & 0x1fffff */ | |
| a6bb11b2 | 844 | HOWTO (AARCH64_R (ADR_PREL_LO21), /* type */ |
| a06ea964 | 845 | 0, /* rightshift */ |
| c94cb026 | 846 | 4, /* size */ |
| a06ea964 | 847 | 21, /* bitsize */ |
| 0a1b45a2 | 848 | true, /* pc_relative */ |
| a06ea964 NC |
849 | 0, /* bitpos */ |
| 850 | complain_overflow_signed, /* complain_on_overflow */ | |
| 851 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 852 | AARCH64_R_STR (ADR_PREL_LO21), /* name */ |
| 0a1b45a2 | 853 | false, /* partial_inplace */ |
| 13a3cad6 | 854 | 0, /* src_mask */ |
| a06ea964 | 855 | 0x1fffff, /* dst_mask */ |
| 0a1b45a2 | 856 | true), /* pcrel_offset */ |
| a06ea964 NC |
857 | |
| 858 | /* ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ | |
| a6bb11b2 | 859 | HOWTO (AARCH64_R (ADR_PREL_PG_HI21), /* type */ |
| a06ea964 | 860 | 12, /* rightshift */ |
| c94cb026 | 861 | 4, /* size */ |
| a06ea964 | 862 | 21, /* bitsize */ |
| 0a1b45a2 | 863 | true, /* pc_relative */ |
| a06ea964 NC |
864 | 0, /* bitpos */ |
| 865 | complain_overflow_signed, /* complain_on_overflow */ | |
| 866 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 867 | AARCH64_R_STR (ADR_PREL_PG_HI21), /* name */ |
| 0a1b45a2 | 868 | false, /* partial_inplace */ |
| 13a3cad6 | 869 | 0, /* src_mask */ |
| a06ea964 | 870 | 0x1fffff, /* dst_mask */ |
| 0a1b45a2 | 871 | true), /* pcrel_offset */ |
| a06ea964 NC |
872 | |
| 873 | /* ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff [no overflow check] */ | |
| a6bb11b2 | 874 | HOWTO64 (AARCH64_R (ADR_PREL_PG_HI21_NC), /* type */ |
| a06ea964 | 875 | 12, /* rightshift */ |
| c94cb026 | 876 | 4, /* size */ |
| a06ea964 | 877 | 21, /* bitsize */ |
| 0a1b45a2 | 878 | true, /* pc_relative */ |
| a06ea964 NC |
879 | 0, /* bitpos */ |
| 880 | complain_overflow_dont, /* complain_on_overflow */ | |
| 881 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 882 | AARCH64_R_STR (ADR_PREL_PG_HI21_NC), /* name */ |
| 0a1b45a2 | 883 | false, /* partial_inplace */ |
| 13a3cad6 | 884 | 0, /* src_mask */ |
| a06ea964 | 885 | 0x1fffff, /* dst_mask */ |
| 0a1b45a2 | 886 | true), /* pcrel_offset */ |
| a06ea964 NC |
887 | |
| 888 | /* ADD: (S+A) & 0xfff [no overflow check] */ | |
| a6bb11b2 | 889 | HOWTO (AARCH64_R (ADD_ABS_LO12_NC), /* type */ |
| a06ea964 | 890 | 0, /* rightshift */ |
| c94cb026 | 891 | 4, /* size */ |
| a06ea964 | 892 | 12, /* bitsize */ |
| 0a1b45a2 | 893 | false, /* pc_relative */ |
| a06ea964 NC |
894 | 10, /* bitpos */ |
| 895 | complain_overflow_dont, /* complain_on_overflow */ | |
| 896 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 897 | AARCH64_R_STR (ADD_ABS_LO12_NC), /* name */ |
| 0a1b45a2 | 898 | false, /* partial_inplace */ |
| 13a3cad6 | 899 | 0, /* src_mask */ |
| a06ea964 | 900 | 0x3ffc00, /* dst_mask */ |
| 0a1b45a2 | 901 | false), /* pcrel_offset */ |
| a06ea964 NC |
902 | |
| 903 | /* LD/ST8: (S+A) & 0xfff */ | |
| a6bb11b2 | 904 | HOWTO (AARCH64_R (LDST8_ABS_LO12_NC), /* type */ |
| a06ea964 | 905 | 0, /* rightshift */ |
| c94cb026 | 906 | 4, /* size */ |
| a06ea964 | 907 | 12, /* bitsize */ |
| 0a1b45a2 | 908 | false, /* pc_relative */ |
| a06ea964 NC |
909 | 0, /* bitpos */ |
| 910 | complain_overflow_dont, /* complain_on_overflow */ | |
| 911 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 912 | AARCH64_R_STR (LDST8_ABS_LO12_NC), /* name */ |
| 0a1b45a2 | 913 | false, /* partial_inplace */ |
| 13a3cad6 | 914 | 0, /* src_mask */ |
| a06ea964 | 915 | 0xfff, /* dst_mask */ |
| 0a1b45a2 | 916 | false), /* pcrel_offset */ |
| a06ea964 NC |
917 | |
| 918 | /* Relocations for control-flow instructions. */ | |
| 919 | ||
| 920 | /* TBZ/NZ: ((S+A-P) >> 2) & 0x3fff */ | |
| a6bb11b2 | 921 | HOWTO (AARCH64_R (TSTBR14), /* type */ |
| a06ea964 | 922 | 2, /* rightshift */ |
| c94cb026 | 923 | 4, /* size */ |
| a06ea964 | 924 | 14, /* bitsize */ |
| 0a1b45a2 | 925 | true, /* pc_relative */ |
| a06ea964 NC |
926 | 0, /* bitpos */ |
| 927 | complain_overflow_signed, /* complain_on_overflow */ | |
| 928 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 929 | AARCH64_R_STR (TSTBR14), /* name */ |
| 0a1b45a2 | 930 | false, /* partial_inplace */ |
| 13a3cad6 | 931 | 0, /* src_mask */ |
| a06ea964 | 932 | 0x3fff, /* dst_mask */ |
| 0a1b45a2 | 933 | true), /* pcrel_offset */ |
| a06ea964 NC |
934 | |
| 935 | /* B.cond: ((S+A-P) >> 2) & 0x7ffff */ | |
| a6bb11b2 | 936 | HOWTO (AARCH64_R (CONDBR19), /* type */ |
| a06ea964 | 937 | 2, /* rightshift */ |
| c94cb026 | 938 | 4, /* size */ |
| a06ea964 | 939 | 19, /* bitsize */ |
| 0a1b45a2 | 940 | true, /* pc_relative */ |
| a06ea964 NC |
941 | 0, /* bitpos */ |
| 942 | complain_overflow_signed, /* complain_on_overflow */ | |
| 943 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 944 | AARCH64_R_STR (CONDBR19), /* name */ |
| 0a1b45a2 | 945 | false, /* partial_inplace */ |
| 13a3cad6 | 946 | 0, /* src_mask */ |
| a06ea964 | 947 | 0x7ffff, /* dst_mask */ |
| 0a1b45a2 | 948 | true), /* pcrel_offset */ |
| a06ea964 | 949 | |
| a06ea964 | 950 | /* B: ((S+A-P) >> 2) & 0x3ffffff */ |
| a6bb11b2 | 951 | HOWTO (AARCH64_R (JUMP26), /* type */ |
| a06ea964 | 952 | 2, /* rightshift */ |
| c94cb026 | 953 | 4, /* size */ |
| a06ea964 | 954 | 26, /* bitsize */ |
| 0a1b45a2 | 955 | true, /* pc_relative */ |
| a06ea964 NC |
956 | 0, /* bitpos */ |
| 957 | complain_overflow_signed, /* complain_on_overflow */ | |
| 958 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 959 | AARCH64_R_STR (JUMP26), /* name */ |
| 0a1b45a2 | 960 | false, /* partial_inplace */ |
| 13a3cad6 | 961 | 0, /* src_mask */ |
| a06ea964 | 962 | 0x3ffffff, /* dst_mask */ |
| 0a1b45a2 | 963 | true), /* pcrel_offset */ |
| a06ea964 NC |
964 | |
| 965 | /* BL: ((S+A-P) >> 2) & 0x3ffffff */ | |
| a6bb11b2 | 966 | HOWTO (AARCH64_R (CALL26), /* type */ |
| a06ea964 | 967 | 2, /* rightshift */ |
| c94cb026 | 968 | 4, /* size */ |
| a06ea964 | 969 | 26, /* bitsize */ |
| 0a1b45a2 | 970 | true, /* pc_relative */ |
| a06ea964 NC |
971 | 0, /* bitpos */ |
| 972 | complain_overflow_signed, /* complain_on_overflow */ | |
| 973 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 974 | AARCH64_R_STR (CALL26), /* name */ |
| 0a1b45a2 | 975 | false, /* partial_inplace */ |
| 13a3cad6 | 976 | 0, /* src_mask */ |
| a06ea964 | 977 | 0x3ffffff, /* dst_mask */ |
| 0a1b45a2 | 978 | true), /* pcrel_offset */ |
| a06ea964 NC |
979 | |
| 980 | /* LD/ST16: (S+A) & 0xffe */ | |
| a6bb11b2 | 981 | HOWTO (AARCH64_R (LDST16_ABS_LO12_NC), /* type */ |
| a06ea964 | 982 | 1, /* rightshift */ |
| c94cb026 | 983 | 4, /* size */ |
| a06ea964 | 984 | 12, /* bitsize */ |
| 0a1b45a2 | 985 | false, /* pc_relative */ |
| a06ea964 NC |
986 | 0, /* bitpos */ |
| 987 | complain_overflow_dont, /* complain_on_overflow */ | |
| 988 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 989 | AARCH64_R_STR (LDST16_ABS_LO12_NC), /* name */ |
| 0a1b45a2 | 990 | false, /* partial_inplace */ |
| 13a3cad6 | 991 | 0, /* src_mask */ |
| a06ea964 | 992 | 0xffe, /* dst_mask */ |
| 0a1b45a2 | 993 | false), /* pcrel_offset */ |
| a06ea964 NC |
994 | |
| 995 | /* LD/ST32: (S+A) & 0xffc */ | |
| a6bb11b2 | 996 | HOWTO (AARCH64_R (LDST32_ABS_LO12_NC), /* type */ |
| a06ea964 | 997 | 2, /* rightshift */ |
| c94cb026 | 998 | 4, /* size */ |
| a06ea964 | 999 | 12, /* bitsize */ |
| 0a1b45a2 | 1000 | false, /* pc_relative */ |
| a06ea964 NC |
1001 | 0, /* bitpos */ |
| 1002 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1003 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1004 | AARCH64_R_STR (LDST32_ABS_LO12_NC), /* name */ |
| 0a1b45a2 | 1005 | false, /* partial_inplace */ |
| 13a3cad6 | 1006 | 0, /* src_mask */ |
| a06ea964 | 1007 | 0xffc, /* dst_mask */ |
| 0a1b45a2 | 1008 | false), /* pcrel_offset */ |
| a06ea964 NC |
1009 | |
| 1010 | /* LD/ST64: (S+A) & 0xff8 */ | |
| a6bb11b2 | 1011 | HOWTO (AARCH64_R (LDST64_ABS_LO12_NC), /* type */ |
| a06ea964 | 1012 | 3, /* rightshift */ |
| c94cb026 | 1013 | 4, /* size */ |
| a06ea964 | 1014 | 12, /* bitsize */ |
| 0a1b45a2 | 1015 | false, /* pc_relative */ |
| a06ea964 NC |
1016 | 0, /* bitpos */ |
| 1017 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1018 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1019 | AARCH64_R_STR (LDST64_ABS_LO12_NC), /* name */ |
| 0a1b45a2 | 1020 | false, /* partial_inplace */ |
| 13a3cad6 | 1021 | 0, /* src_mask */ |
| a06ea964 | 1022 | 0xff8, /* dst_mask */ |
| 0a1b45a2 | 1023 | false), /* pcrel_offset */ |
| a06ea964 | 1024 | |
| a06ea964 | 1025 | /* LD/ST128: (S+A) & 0xff0 */ |
| a6bb11b2 | 1026 | HOWTO (AARCH64_R (LDST128_ABS_LO12_NC), /* type */ |
| a06ea964 | 1027 | 4, /* rightshift */ |
| c94cb026 | 1028 | 4, /* size */ |
| a06ea964 | 1029 | 12, /* bitsize */ |
| 0a1b45a2 | 1030 | false, /* pc_relative */ |
| a06ea964 NC |
1031 | 0, /* bitpos */ |
| 1032 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1033 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1034 | AARCH64_R_STR (LDST128_ABS_LO12_NC), /* name */ |
| 0a1b45a2 | 1035 | false, /* partial_inplace */ |
| 13a3cad6 | 1036 | 0, /* src_mask */ |
| a06ea964 | 1037 | 0xff0, /* dst_mask */ |
| 0a1b45a2 | 1038 | false), /* pcrel_offset */ |
| a06ea964 | 1039 | |
| f41aef5f RE |
1040 | /* Set a load-literal immediate field to bits |
| 1041 | 0x1FFFFC of G(S)-P */ | |
| a6bb11b2 | 1042 | HOWTO (AARCH64_R (GOT_LD_PREL19), /* type */ |
| f41aef5f | 1043 | 2, /* rightshift */ |
| c94cb026 | 1044 | 4, /* size */ |
| f41aef5f | 1045 | 19, /* bitsize */ |
| 0a1b45a2 | 1046 | true, /* pc_relative */ |
| f41aef5f RE |
1047 | 0, /* bitpos */ |
| 1048 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1049 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1050 | AARCH64_R_STR (GOT_LD_PREL19), /* name */ |
| 0a1b45a2 | 1051 | false, /* partial_inplace */ |
| 13a3cad6 | 1052 | 0, /* src_mask */ |
| f41aef5f | 1053 | 0xffffe0, /* dst_mask */ |
| 0a1b45a2 | 1054 | true), /* pcrel_offset */ |
| f41aef5f | 1055 | |
| a06ea964 NC |
1056 | /* Get to the page for the GOT entry for the symbol |
| 1057 | (G(S) - P) using an ADRP instruction. */ | |
| a6bb11b2 | 1058 | HOWTO (AARCH64_R (ADR_GOT_PAGE), /* type */ |
| a06ea964 | 1059 | 12, /* rightshift */ |
| c94cb026 | 1060 | 4, /* size */ |
| a06ea964 | 1061 | 21, /* bitsize */ |
| 0a1b45a2 | 1062 | true, /* pc_relative */ |
| a06ea964 NC |
1063 | 0, /* bitpos */ |
| 1064 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1065 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1066 | AARCH64_R_STR (ADR_GOT_PAGE), /* name */ |
| 0a1b45a2 | 1067 | false, /* partial_inplace */ |
| 13a3cad6 | 1068 | 0, /* src_mask */ |
| a06ea964 | 1069 | 0x1fffff, /* dst_mask */ |
| 0a1b45a2 | 1070 | true), /* pcrel_offset */ |
| a06ea964 | 1071 | |
| a6bb11b2 YZ |
1072 | /* LD64: GOT offset G(S) & 0xff8 */ |
| 1073 | HOWTO64 (AARCH64_R (LD64_GOT_LO12_NC), /* type */ | |
| a06ea964 | 1074 | 3, /* rightshift */ |
| c94cb026 | 1075 | 4, /* size */ |
| a06ea964 | 1076 | 12, /* bitsize */ |
| 0a1b45a2 | 1077 | false, /* pc_relative */ |
| a06ea964 NC |
1078 | 0, /* bitpos */ |
| 1079 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1080 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1081 | AARCH64_R_STR (LD64_GOT_LO12_NC), /* name */ |
| 0a1b45a2 | 1082 | false, /* partial_inplace */ |
| 13a3cad6 | 1083 | 0, /* src_mask */ |
| a06ea964 | 1084 | 0xff8, /* dst_mask */ |
| 0a1b45a2 | 1085 | false), /* pcrel_offset */ |
| a06ea964 | 1086 | |
| a6bb11b2 YZ |
1087 | /* LD32: GOT offset G(S) & 0xffc */ |
| 1088 | HOWTO32 (AARCH64_R (LD32_GOT_LO12_NC), /* type */ | |
| 1089 | 2, /* rightshift */ | |
| c94cb026 | 1090 | 4, /* size */ |
| a6bb11b2 | 1091 | 12, /* bitsize */ |
| 0a1b45a2 | 1092 | false, /* pc_relative */ |
| a6bb11b2 YZ |
1093 | 0, /* bitpos */ |
| 1094 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1095 | bfd_elf_generic_reloc, /* special_function */ | |
| 1096 | AARCH64_R_STR (LD32_GOT_LO12_NC), /* name */ | |
| 0a1b45a2 | 1097 | false, /* partial_inplace */ |
| 13a3cad6 | 1098 | 0, /* src_mask */ |
| a6bb11b2 | 1099 | 0xffc, /* dst_mask */ |
| 0a1b45a2 | 1100 | false), /* pcrel_offset */ |
| a06ea964 | 1101 | |
| ca632371 RL |
1102 | /* Lower 16 bits of GOT offset for the symbol. */ |
| 1103 | HOWTO64 (AARCH64_R (MOVW_GOTOFF_G0_NC), /* type */ | |
| 1104 | 0, /* rightshift */ | |
| c94cb026 | 1105 | 4, /* size */ |
| ca632371 | 1106 | 16, /* bitsize */ |
| 0a1b45a2 | 1107 | false, /* pc_relative */ |
| ca632371 RL |
1108 | 0, /* bitpos */ |
| 1109 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1110 | bfd_elf_generic_reloc, /* special_function */ | |
| 1111 | AARCH64_R_STR (MOVW_GOTOFF_G0_NC), /* name */ | |
| 0a1b45a2 | 1112 | false, /* partial_inplace */ |
| 13a3cad6 | 1113 | 0, /* src_mask */ |
| ca632371 | 1114 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1115 | false), /* pcrel_offset */ |
| ca632371 | 1116 | |
| 654248e7 RL |
1117 | /* Higher 16 bits of GOT offset for the symbol. */ |
| 1118 | HOWTO64 (AARCH64_R (MOVW_GOTOFF_G1), /* type */ | |
| 1119 | 16, /* rightshift */ | |
| c94cb026 | 1120 | 4, /* size */ |
| 654248e7 | 1121 | 16, /* bitsize */ |
| 0a1b45a2 | 1122 | false, /* pc_relative */ |
| 654248e7 RL |
1123 | 0, /* bitpos */ |
| 1124 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1125 | bfd_elf_generic_reloc, /* special_function */ | |
| 1126 | AARCH64_R_STR (MOVW_GOTOFF_G1), /* name */ | |
| 0a1b45a2 | 1127 | false, /* partial_inplace */ |
| 13a3cad6 | 1128 | 0, /* src_mask */ |
| 654248e7 | 1129 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1130 | false), /* pcrel_offset */ |
| 654248e7 | 1131 | |
| 87f5fbcc RL |
1132 | /* LD64: GOT offset for the symbol. */ |
| 1133 | HOWTO64 (AARCH64_R (LD64_GOTOFF_LO15), /* type */ | |
| 1134 | 3, /* rightshift */ | |
| c94cb026 | 1135 | 4, /* size */ |
| 87f5fbcc | 1136 | 12, /* bitsize */ |
| 0a1b45a2 | 1137 | false, /* pc_relative */ |
| 87f5fbcc RL |
1138 | 0, /* bitpos */ |
| 1139 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1140 | bfd_elf_generic_reloc, /* special_function */ | |
| 1141 | AARCH64_R_STR (LD64_GOTOFF_LO15), /* name */ | |
| 0a1b45a2 | 1142 | false, /* partial_inplace */ |
| 13a3cad6 | 1143 | 0, /* src_mask */ |
| 87f5fbcc | 1144 | 0x7ff8, /* dst_mask */ |
| 0a1b45a2 | 1145 | false), /* pcrel_offset */ |
| 87f5fbcc | 1146 | |
| 3d715ce4 JW |
1147 | /* LD32: GOT offset to the page address of GOT table. |
| 1148 | (G(S) - PAGE (_GLOBAL_OFFSET_TABLE_)) & 0x5ffc. */ | |
| 1149 | HOWTO32 (AARCH64_R (LD32_GOTPAGE_LO14), /* type */ | |
| 1150 | 2, /* rightshift */ | |
| c94cb026 | 1151 | 4, /* size */ |
| 3d715ce4 | 1152 | 12, /* bitsize */ |
| 0a1b45a2 | 1153 | false, /* pc_relative */ |
| 3d715ce4 JW |
1154 | 0, /* bitpos */ |
| 1155 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1156 | bfd_elf_generic_reloc, /* special_function */ | |
| 1157 | AARCH64_R_STR (LD32_GOTPAGE_LO14), /* name */ | |
| 0a1b45a2 | 1158 | false, /* partial_inplace */ |
| 13a3cad6 | 1159 | 0, /* src_mask */ |
| 3d715ce4 | 1160 | 0x5ffc, /* dst_mask */ |
| 0a1b45a2 | 1161 | false), /* pcrel_offset */ |
| 3d715ce4 | 1162 | |
| a921b5bd JW |
1163 | /* LD64: GOT offset to the page address of GOT table. |
| 1164 | (G(S) - PAGE (_GLOBAL_OFFSET_TABLE_)) & 0x7ff8. */ | |
| 1165 | HOWTO64 (AARCH64_R (LD64_GOTPAGE_LO15), /* type */ | |
| 1166 | 3, /* rightshift */ | |
| c94cb026 | 1167 | 4, /* size */ |
| a921b5bd | 1168 | 12, /* bitsize */ |
| 0a1b45a2 | 1169 | false, /* pc_relative */ |
| a921b5bd JW |
1170 | 0, /* bitpos */ |
| 1171 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1172 | bfd_elf_generic_reloc, /* special_function */ | |
| 1173 | AARCH64_R_STR (LD64_GOTPAGE_LO15), /* name */ | |
| 0a1b45a2 | 1174 | false, /* partial_inplace */ |
| 13a3cad6 | 1175 | 0, /* src_mask */ |
| a921b5bd | 1176 | 0x7ff8, /* dst_mask */ |
| 0a1b45a2 | 1177 | false), /* pcrel_offset */ |
| a921b5bd | 1178 | |
| a06ea964 NC |
1179 | /* Get to the page for the GOT entry for the symbol |
| 1180 | (G(S) - P) using an ADRP instruction. */ | |
| a6bb11b2 | 1181 | HOWTO (AARCH64_R (TLSGD_ADR_PAGE21), /* type */ |
| a06ea964 | 1182 | 12, /* rightshift */ |
| c94cb026 | 1183 | 4, /* size */ |
| a06ea964 | 1184 | 21, /* bitsize */ |
| 0a1b45a2 | 1185 | true, /* pc_relative */ |
| a06ea964 NC |
1186 | 0, /* bitpos */ |
| 1187 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1188 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1189 | AARCH64_R_STR (TLSGD_ADR_PAGE21), /* name */ |
| 0a1b45a2 | 1190 | false, /* partial_inplace */ |
| 13a3cad6 | 1191 | 0, /* src_mask */ |
| a06ea964 | 1192 | 0x1fffff, /* dst_mask */ |
| 0a1b45a2 | 1193 | true), /* pcrel_offset */ |
| a06ea964 | 1194 | |
| 3c12b054 MS |
1195 | HOWTO (AARCH64_R (TLSGD_ADR_PREL21), /* type */ |
| 1196 | 0, /* rightshift */ | |
| c94cb026 | 1197 | 4, /* size */ |
| 3c12b054 | 1198 | 21, /* bitsize */ |
| 0a1b45a2 | 1199 | true, /* pc_relative */ |
| 3c12b054 MS |
1200 | 0, /* bitpos */ |
| 1201 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1202 | bfd_elf_generic_reloc, /* special_function */ | |
| 1203 | AARCH64_R_STR (TLSGD_ADR_PREL21), /* name */ | |
| 0a1b45a2 | 1204 | false, /* partial_inplace */ |
| 13a3cad6 | 1205 | 0, /* src_mask */ |
| 3c12b054 | 1206 | 0x1fffff, /* dst_mask */ |
| 0a1b45a2 | 1207 | true), /* pcrel_offset */ |
| 3c12b054 | 1208 | |
| a06ea964 | 1209 | /* ADD: GOT offset G(S) & 0xff8 [no overflow check] */ |
| a6bb11b2 | 1210 | HOWTO (AARCH64_R (TLSGD_ADD_LO12_NC), /* type */ |
| a06ea964 | 1211 | 0, /* rightshift */ |
| c94cb026 | 1212 | 4, /* size */ |
| a06ea964 | 1213 | 12, /* bitsize */ |
| 0a1b45a2 | 1214 | false, /* pc_relative */ |
| a06ea964 NC |
1215 | 0, /* bitpos */ |
| 1216 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1217 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1218 | AARCH64_R_STR (TLSGD_ADD_LO12_NC), /* name */ |
| 0a1b45a2 | 1219 | false, /* partial_inplace */ |
| 13a3cad6 | 1220 | 0, /* src_mask */ |
| a06ea964 | 1221 | 0xfff, /* dst_mask */ |
| 0a1b45a2 | 1222 | false), /* pcrel_offset */ |
| a06ea964 | 1223 | |
| 3e8286c0 RL |
1224 | /* Lower 16 bits of GOT offset to tls_index. */ |
| 1225 | HOWTO64 (AARCH64_R (TLSGD_MOVW_G0_NC), /* type */ | |
| 1226 | 0, /* rightshift */ | |
| c94cb026 | 1227 | 4, /* size */ |
| 3e8286c0 | 1228 | 16, /* bitsize */ |
| 0a1b45a2 | 1229 | false, /* pc_relative */ |
| 3e8286c0 RL |
1230 | 0, /* bitpos */ |
| 1231 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1232 | bfd_elf_generic_reloc, /* special_function */ | |
| 1233 | AARCH64_R_STR (TLSGD_MOVW_G0_NC), /* name */ | |
| 0a1b45a2 | 1234 | false, /* partial_inplace */ |
| 13a3cad6 | 1235 | 0, /* src_mask */ |
| 3e8286c0 | 1236 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1237 | false), /* pcrel_offset */ |
| 3e8286c0 | 1238 | |
| 1aa66fb1 RL |
1239 | /* Higher 16 bits of GOT offset to tls_index. */ |
| 1240 | HOWTO64 (AARCH64_R (TLSGD_MOVW_G1), /* type */ | |
| 1241 | 16, /* rightshift */ | |
| c94cb026 | 1242 | 4, /* size */ |
| 1aa66fb1 | 1243 | 16, /* bitsize */ |
| 0a1b45a2 | 1244 | false, /* pc_relative */ |
| 1aa66fb1 RL |
1245 | 0, /* bitpos */ |
| 1246 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1247 | bfd_elf_generic_reloc, /* special_function */ | |
| 1248 | AARCH64_R_STR (TLSGD_MOVW_G1), /* name */ | |
| 0a1b45a2 | 1249 | false, /* partial_inplace */ |
| 13a3cad6 | 1250 | 0, /* src_mask */ |
| 1aa66fb1 | 1251 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1252 | false), /* pcrel_offset */ |
| 1aa66fb1 | 1253 | |
| a6bb11b2 | 1254 | HOWTO (AARCH64_R (TLSIE_ADR_GOTTPREL_PAGE21), /* type */ |
| a06ea964 | 1255 | 12, /* rightshift */ |
| c94cb026 | 1256 | 4, /* size */ |
| a06ea964 | 1257 | 21, /* bitsize */ |
| 0a1b45a2 | 1258 | false, /* pc_relative */ |
| a06ea964 NC |
1259 | 0, /* bitpos */ |
| 1260 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1261 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1262 | AARCH64_R_STR (TLSIE_ADR_GOTTPREL_PAGE21), /* name */ |
| 0a1b45a2 | 1263 | false, /* partial_inplace */ |
| 13a3cad6 | 1264 | 0, /* src_mask */ |
| a06ea964 | 1265 | 0x1fffff, /* dst_mask */ |
| 0a1b45a2 | 1266 | false), /* pcrel_offset */ |
| a06ea964 | 1267 | |
| a6bb11b2 | 1268 | HOWTO64 (AARCH64_R (TLSIE_LD64_GOTTPREL_LO12_NC), /* type */ |
| a06ea964 | 1269 | 3, /* rightshift */ |
| c94cb026 | 1270 | 4, /* size */ |
| a06ea964 | 1271 | 12, /* bitsize */ |
| 0a1b45a2 | 1272 | false, /* pc_relative */ |
| a06ea964 NC |
1273 | 0, /* bitpos */ |
| 1274 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1275 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1276 | AARCH64_R_STR (TLSIE_LD64_GOTTPREL_LO12_NC), /* name */ |
| 0a1b45a2 | 1277 | false, /* partial_inplace */ |
| 13a3cad6 | 1278 | 0, /* src_mask */ |
| a06ea964 | 1279 | 0xff8, /* dst_mask */ |
| 0a1b45a2 | 1280 | false), /* pcrel_offset */ |
| a06ea964 | 1281 | |
| a6bb11b2 YZ |
1282 | HOWTO32 (AARCH64_R (TLSIE_LD32_GOTTPREL_LO12_NC), /* type */ |
| 1283 | 2, /* rightshift */ | |
| c94cb026 | 1284 | 4, /* size */ |
| a6bb11b2 | 1285 | 12, /* bitsize */ |
| 0a1b45a2 | 1286 | false, /* pc_relative */ |
| a6bb11b2 YZ |
1287 | 0, /* bitpos */ |
| 1288 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1289 | bfd_elf_generic_reloc, /* special_function */ | |
| 1290 | AARCH64_R_STR (TLSIE_LD32_GOTTPREL_LO12_NC), /* name */ | |
| 0a1b45a2 | 1291 | false, /* partial_inplace */ |
| 13a3cad6 | 1292 | 0, /* src_mask */ |
| a6bb11b2 | 1293 | 0xffc, /* dst_mask */ |
| 0a1b45a2 | 1294 | false), /* pcrel_offset */ |
| a6bb11b2 YZ |
1295 | |
| 1296 | HOWTO (AARCH64_R (TLSIE_LD_GOTTPREL_PREL19), /* type */ | |
| bb3f9ed8 | 1297 | 2, /* rightshift */ |
| c94cb026 | 1298 | 4, /* size */ |
| 043bf05a | 1299 | 19, /* bitsize */ |
| 0a1b45a2 | 1300 | false, /* pc_relative */ |
| a06ea964 NC |
1301 | 0, /* bitpos */ |
| 1302 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1303 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1304 | AARCH64_R_STR (TLSIE_LD_GOTTPREL_PREL19), /* name */ |
| 0a1b45a2 | 1305 | false, /* partial_inplace */ |
| 13a3cad6 | 1306 | 0, /* src_mask */ |
| a06ea964 | 1307 | 0x1ffffc, /* dst_mask */ |
| 0a1b45a2 | 1308 | false), /* pcrel_offset */ |
| a06ea964 | 1309 | |
| 3b957e5b RL |
1310 | HOWTO64 (AARCH64_R (TLSIE_MOVW_GOTTPREL_G0_NC), /* type */ |
| 1311 | 0, /* rightshift */ | |
| c94cb026 | 1312 | 4, /* size */ |
| 3b957e5b | 1313 | 16, /* bitsize */ |
| 0a1b45a2 | 1314 | false, /* pc_relative */ |
| 3b957e5b RL |
1315 | 0, /* bitpos */ |
| 1316 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1317 | bfd_elf_generic_reloc, /* special_function */ | |
| 1318 | AARCH64_R_STR (TLSIE_MOVW_GOTTPREL_G0_NC), /* name */ | |
| 0a1b45a2 | 1319 | false, /* partial_inplace */ |
| 13a3cad6 | 1320 | 0, /* src_mask */ |
| 3b957e5b | 1321 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1322 | false), /* pcrel_offset */ |
| 3b957e5b RL |
1323 | |
| 1324 | HOWTO64 (AARCH64_R (TLSIE_MOVW_GOTTPREL_G1), /* type */ | |
| 1325 | 16, /* rightshift */ | |
| c94cb026 | 1326 | 4, /* size */ |
| 3b957e5b | 1327 | 16, /* bitsize */ |
| 0a1b45a2 | 1328 | false, /* pc_relative */ |
| 3b957e5b RL |
1329 | 0, /* bitpos */ |
| 1330 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1331 | bfd_elf_generic_reloc, /* special_function */ | |
| 1332 | AARCH64_R_STR (TLSIE_MOVW_GOTTPREL_G1), /* name */ | |
| 0a1b45a2 | 1333 | false, /* partial_inplace */ |
| 13a3cad6 | 1334 | 0, /* src_mask */ |
| 3b957e5b | 1335 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1336 | false), /* pcrel_offset */ |
| 3b957e5b | 1337 | |
| 49df5539 JW |
1338 | /* ADD: bit[23:12] of byte offset to module TLS base address. */ |
| 1339 | HOWTO (AARCH64_R (TLSLD_ADD_DTPREL_HI12), /* type */ | |
| 1340 | 12, /* rightshift */ | |
| c94cb026 | 1341 | 4, /* size */ |
| 49df5539 | 1342 | 12, /* bitsize */ |
| 0a1b45a2 | 1343 | false, /* pc_relative */ |
| 49df5539 JW |
1344 | 0, /* bitpos */ |
| 1345 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1346 | bfd_elf_generic_reloc, /* special_function */ | |
| 1347 | AARCH64_R_STR (TLSLD_ADD_DTPREL_HI12), /* name */ | |
| 0a1b45a2 | 1348 | false, /* partial_inplace */ |
| 13a3cad6 | 1349 | 0, /* src_mask */ |
| 49df5539 | 1350 | 0xfff, /* dst_mask */ |
| 0a1b45a2 | 1351 | false), /* pcrel_offset */ |
| 49df5539 | 1352 | |
| 70151fb5 JW |
1353 | /* Unsigned 12 bit byte offset to module TLS base address. */ |
| 1354 | HOWTO (AARCH64_R (TLSLD_ADD_DTPREL_LO12), /* type */ | |
| 1355 | 0, /* rightshift */ | |
| c94cb026 | 1356 | 4, /* size */ |
| 70151fb5 | 1357 | 12, /* bitsize */ |
| 0a1b45a2 | 1358 | false, /* pc_relative */ |
| 70151fb5 JW |
1359 | 0, /* bitpos */ |
| 1360 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1361 | bfd_elf_generic_reloc, /* special_function */ | |
| 1362 | AARCH64_R_STR (TLSLD_ADD_DTPREL_LO12), /* name */ | |
| 0a1b45a2 | 1363 | false, /* partial_inplace */ |
| 13a3cad6 | 1364 | 0, /* src_mask */ |
| 70151fb5 | 1365 | 0xfff, /* dst_mask */ |
| 0a1b45a2 | 1366 | false), /* pcrel_offset */ |
| 13289c10 JW |
1367 | |
| 1368 | /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12. */ | |
| 1369 | HOWTO (AARCH64_R (TLSLD_ADD_DTPREL_LO12_NC), /* type */ | |
| 1370 | 0, /* rightshift */ | |
| c94cb026 | 1371 | 4, /* size */ |
| 13289c10 | 1372 | 12, /* bitsize */ |
| 0a1b45a2 | 1373 | false, /* pc_relative */ |
| 13289c10 JW |
1374 | 0, /* bitpos */ |
| 1375 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1376 | bfd_elf_generic_reloc, /* special_function */ | |
| 1377 | AARCH64_R_STR (TLSLD_ADD_DTPREL_LO12_NC), /* name */ | |
| 0a1b45a2 | 1378 | false, /* partial_inplace */ |
| 13a3cad6 | 1379 | 0, /* src_mask */ |
| 13289c10 | 1380 | 0xfff, /* dst_mask */ |
| 0a1b45a2 | 1381 | false), /* pcrel_offset */ |
| 70151fb5 | 1382 | |
| a12fad50 JW |
1383 | /* ADD: GOT offset G(S) & 0xff8 [no overflow check] */ |
| 1384 | HOWTO (AARCH64_R (TLSLD_ADD_LO12_NC), /* type */ | |
| 1385 | 0, /* rightshift */ | |
| c94cb026 | 1386 | 4, /* size */ |
| a12fad50 | 1387 | 12, /* bitsize */ |
| 0a1b45a2 | 1388 | false, /* pc_relative */ |
| a12fad50 JW |
1389 | 0, /* bitpos */ |
| 1390 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1391 | bfd_elf_generic_reloc, /* special_function */ | |
| 1392 | AARCH64_R_STR (TLSLD_ADD_LO12_NC), /* name */ | |
| 0a1b45a2 | 1393 | false, /* partial_inplace */ |
| 13a3cad6 | 1394 | 0, /* src_mask */ |
| a12fad50 | 1395 | 0xfff, /* dst_mask */ |
| 0a1b45a2 | 1396 | false), /* pcrel_offset */ |
| a12fad50 | 1397 | |
| 1107e076 JW |
1398 | /* Get to the page for the GOT entry for the symbol |
| 1399 | (G(S) - P) using an ADRP instruction. */ | |
| 1400 | HOWTO (AARCH64_R (TLSLD_ADR_PAGE21), /* type */ | |
| 1401 | 12, /* rightshift */ | |
| c94cb026 | 1402 | 4, /* size */ |
| 1107e076 | 1403 | 21, /* bitsize */ |
| 0a1b45a2 | 1404 | true, /* pc_relative */ |
| 1107e076 JW |
1405 | 0, /* bitpos */ |
| 1406 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1407 | bfd_elf_generic_reloc, /* special_function */ | |
| 1408 | AARCH64_R_STR (TLSLD_ADR_PAGE21), /* name */ | |
| 0a1b45a2 | 1409 | false, /* partial_inplace */ |
| 13a3cad6 | 1410 | 0, /* src_mask */ |
| 1107e076 | 1411 | 0x1fffff, /* dst_mask */ |
| 0a1b45a2 | 1412 | true), /* pcrel_offset */ |
| 1107e076 | 1413 | |
| 6c37fedc JW |
1414 | HOWTO (AARCH64_R (TLSLD_ADR_PREL21), /* type */ |
| 1415 | 0, /* rightshift */ | |
| c94cb026 | 1416 | 4, /* size */ |
| 6c37fedc | 1417 | 21, /* bitsize */ |
| 0a1b45a2 | 1418 | true, /* pc_relative */ |
| 6c37fedc JW |
1419 | 0, /* bitpos */ |
| 1420 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1421 | bfd_elf_generic_reloc, /* special_function */ | |
| 1422 | AARCH64_R_STR (TLSLD_ADR_PREL21), /* name */ | |
| 0a1b45a2 | 1423 | false, /* partial_inplace */ |
| 13a3cad6 | 1424 | 0, /* src_mask */ |
| 6c37fedc | 1425 | 0x1fffff, /* dst_mask */ |
| 0a1b45a2 | 1426 | true), /* pcrel_offset */ |
| 6c37fedc | 1427 | |
| 4c562523 JW |
1428 | /* LD/ST16: bit[11:1] of byte offset to module TLS base address. */ |
| 1429 | HOWTO64 (AARCH64_R (TLSLD_LDST16_DTPREL_LO12), /* type */ | |
| 1430 | 1, /* rightshift */ | |
| c94cb026 | 1431 | 4, /* size */ |
| 4c562523 | 1432 | 11, /* bitsize */ |
| 0a1b45a2 | 1433 | false, /* pc_relative */ |
| 4c562523 JW |
1434 | 10, /* bitpos */ |
| 1435 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1436 | bfd_elf_generic_reloc, /* special_function */ | |
| 1437 | AARCH64_R_STR (TLSLD_LDST16_DTPREL_LO12), /* name */ | |
| 0a1b45a2 | 1438 | false, /* partial_inplace */ |
| 13a3cad6 | 1439 | 0, /* src_mask */ |
| 4c562523 | 1440 | 0x1ffc00, /* dst_mask */ |
| 0a1b45a2 | 1441 | false), /* pcrel_offset */ |
| 4c562523 JW |
1442 | |
| 1443 | /* Same as BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12, but no overflow check. */ | |
| 1444 | HOWTO64 (AARCH64_R (TLSLD_LDST16_DTPREL_LO12_NC), /* type */ | |
| 1445 | 1, /* rightshift */ | |
| c94cb026 | 1446 | 4, /* size */ |
| 4c562523 | 1447 | 11, /* bitsize */ |
| 0a1b45a2 | 1448 | false, /* pc_relative */ |
| 4c562523 JW |
1449 | 10, /* bitpos */ |
| 1450 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1451 | bfd_elf_generic_reloc, /* special_function */ | |
| 1452 | AARCH64_R_STR (TLSLD_LDST16_DTPREL_LO12_NC), /* name */ | |
| 0a1b45a2 | 1453 | false, /* partial_inplace */ |
| 13a3cad6 | 1454 | 0, /* src_mask */ |
| 4c562523 | 1455 | 0x1ffc00, /* dst_mask */ |
| 0a1b45a2 | 1456 | false), /* pcrel_offset */ |
| 4c562523 JW |
1457 | |
| 1458 | /* LD/ST32: bit[11:2] of byte offset to module TLS base address. */ | |
| 1459 | HOWTO64 (AARCH64_R (TLSLD_LDST32_DTPREL_LO12), /* type */ | |
| 1460 | 2, /* rightshift */ | |
| c94cb026 | 1461 | 4, /* size */ |
| 4c562523 | 1462 | 10, /* bitsize */ |
| 0a1b45a2 | 1463 | false, /* pc_relative */ |
| 4c562523 JW |
1464 | 10, /* bitpos */ |
| 1465 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1466 | bfd_elf_generic_reloc, /* special_function */ | |
| 1467 | AARCH64_R_STR (TLSLD_LDST32_DTPREL_LO12), /* name */ | |
| 0a1b45a2 | 1468 | false, /* partial_inplace */ |
| 13a3cad6 | 1469 | 0, /* src_mask */ |
| 4c562523 | 1470 | 0x3ffc00, /* dst_mask */ |
| 0a1b45a2 | 1471 | false), /* pcrel_offset */ |
| 4c562523 JW |
1472 | |
| 1473 | /* Same as BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12, but no overflow check. */ | |
| 1474 | HOWTO64 (AARCH64_R (TLSLD_LDST32_DTPREL_LO12_NC), /* type */ | |
| 1475 | 2, /* rightshift */ | |
| c94cb026 | 1476 | 4, /* size */ |
| 4c562523 | 1477 | 10, /* bitsize */ |
| 0a1b45a2 | 1478 | false, /* pc_relative */ |
| 4c562523 JW |
1479 | 10, /* bitpos */ |
| 1480 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1481 | bfd_elf_generic_reloc, /* special_function */ | |
| 1482 | AARCH64_R_STR (TLSLD_LDST32_DTPREL_LO12_NC), /* name */ | |
| 0a1b45a2 | 1483 | false, /* partial_inplace */ |
| 13a3cad6 | 1484 | 0, /* src_mask */ |
| 4c562523 | 1485 | 0xffc00, /* dst_mask */ |
| 0a1b45a2 | 1486 | false), /* pcrel_offset */ |
| 4c562523 JW |
1487 | |
| 1488 | /* LD/ST64: bit[11:3] of byte offset to module TLS base address. */ | |
| 1489 | HOWTO64 (AARCH64_R (TLSLD_LDST64_DTPREL_LO12), /* type */ | |
| 1490 | 3, /* rightshift */ | |
| c94cb026 | 1491 | 4, /* size */ |
| 4c562523 | 1492 | 9, /* bitsize */ |
| 0a1b45a2 | 1493 | false, /* pc_relative */ |
| 4c562523 JW |
1494 | 10, /* bitpos */ |
| 1495 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1496 | bfd_elf_generic_reloc, /* special_function */ | |
| 1497 | AARCH64_R_STR (TLSLD_LDST64_DTPREL_LO12), /* name */ | |
| 0a1b45a2 | 1498 | false, /* partial_inplace */ |
| 13a3cad6 | 1499 | 0, /* src_mask */ |
| 4c562523 | 1500 | 0x3ffc00, /* dst_mask */ |
| 0a1b45a2 | 1501 | false), /* pcrel_offset */ |
| 4c562523 JW |
1502 | |
| 1503 | /* Same as BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12, but no overflow check. */ | |
| 1504 | HOWTO64 (AARCH64_R (TLSLD_LDST64_DTPREL_LO12_NC), /* type */ | |
| 1505 | 3, /* rightshift */ | |
| c94cb026 | 1506 | 4, /* size */ |
| 4c562523 | 1507 | 9, /* bitsize */ |
| 0a1b45a2 | 1508 | false, /* pc_relative */ |
| 4c562523 JW |
1509 | 10, /* bitpos */ |
| 1510 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1511 | bfd_elf_generic_reloc, /* special_function */ | |
| 1512 | AARCH64_R_STR (TLSLD_LDST64_DTPREL_LO12_NC), /* name */ | |
| 0a1b45a2 | 1513 | false, /* partial_inplace */ |
| 13a3cad6 | 1514 | 0, /* src_mask */ |
| 4c562523 | 1515 | 0x7fc00, /* dst_mask */ |
| 0a1b45a2 | 1516 | false), /* pcrel_offset */ |
| 4c562523 JW |
1517 | |
| 1518 | /* LD/ST8: bit[11:0] of byte offset to module TLS base address. */ | |
| 1519 | HOWTO64 (AARCH64_R (TLSLD_LDST8_DTPREL_LO12), /* type */ | |
| 1520 | 0, /* rightshift */ | |
| c94cb026 | 1521 | 4, /* size */ |
| 4c562523 | 1522 | 12, /* bitsize */ |
| 0a1b45a2 | 1523 | false, /* pc_relative */ |
| 4c562523 JW |
1524 | 10, /* bitpos */ |
| 1525 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1526 | bfd_elf_generic_reloc, /* special_function */ | |
| 1527 | AARCH64_R_STR (TLSLD_LDST8_DTPREL_LO12), /* name */ | |
| 0a1b45a2 | 1528 | false, /* partial_inplace */ |
| 13a3cad6 | 1529 | 0, /* src_mask */ |
| 4c562523 | 1530 | 0x3ffc00, /* dst_mask */ |
| 0a1b45a2 | 1531 | false), /* pcrel_offset */ |
| 4c562523 JW |
1532 | |
| 1533 | /* Same as BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12, but no overflow check. */ | |
| 1534 | HOWTO64 (AARCH64_R (TLSLD_LDST8_DTPREL_LO12_NC), /* type */ | |
| 1535 | 0, /* rightshift */ | |
| c94cb026 | 1536 | 4, /* size */ |
| 4c562523 | 1537 | 12, /* bitsize */ |
| 0a1b45a2 | 1538 | false, /* pc_relative */ |
| 4c562523 JW |
1539 | 10, /* bitpos */ |
| 1540 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1541 | bfd_elf_generic_reloc, /* special_function */ | |
| 1542 | AARCH64_R_STR (TLSLD_LDST8_DTPREL_LO12_NC), /* name */ | |
| 0a1b45a2 | 1543 | false, /* partial_inplace */ |
| 13a3cad6 | 1544 | 0, /* src_mask */ |
| 4c562523 | 1545 | 0x3ffc00, /* dst_mask */ |
| 0a1b45a2 | 1546 | false), /* pcrel_offset */ |
| 4c562523 | 1547 | |
| 49df5539 JW |
1548 | /* MOVZ: bit[15:0] of byte offset to module TLS base address. */ |
| 1549 | HOWTO (AARCH64_R (TLSLD_MOVW_DTPREL_G0), /* type */ | |
| 1550 | 0, /* rightshift */ | |
| c94cb026 | 1551 | 4, /* size */ |
| 49df5539 | 1552 | 16, /* bitsize */ |
| 0a1b45a2 | 1553 | false, /* pc_relative */ |
| 49df5539 JW |
1554 | 0, /* bitpos */ |
| 1555 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1556 | bfd_elf_generic_reloc, /* special_function */ | |
| 1557 | AARCH64_R_STR (TLSLD_MOVW_DTPREL_G0), /* name */ | |
| 0a1b45a2 | 1558 | false, /* partial_inplace */ |
| 13a3cad6 | 1559 | 0, /* src_mask */ |
| 49df5539 | 1560 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1561 | false), /* pcrel_offset */ |
| 49df5539 JW |
1562 | |
| 1563 | /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0. */ | |
| 1564 | HOWTO (AARCH64_R (TLSLD_MOVW_DTPREL_G0_NC), /* type */ | |
| 1565 | 0, /* rightshift */ | |
| c94cb026 | 1566 | 4, /* size */ |
| 49df5539 | 1567 | 16, /* bitsize */ |
| 0a1b45a2 | 1568 | false, /* pc_relative */ |
| 49df5539 JW |
1569 | 0, /* bitpos */ |
| 1570 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1571 | bfd_elf_generic_reloc, /* special_function */ | |
| 1572 | AARCH64_R_STR (TLSLD_MOVW_DTPREL_G0_NC), /* name */ | |
| 0a1b45a2 | 1573 | false, /* partial_inplace */ |
| 13a3cad6 | 1574 | 0, /* src_mask */ |
| 49df5539 | 1575 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1576 | false), /* pcrel_offset */ |
| 49df5539 JW |
1577 | |
| 1578 | /* MOVZ: bit[31:16] of byte offset to module TLS base address. */ | |
| 1579 | HOWTO (AARCH64_R (TLSLD_MOVW_DTPREL_G1), /* type */ | |
| 1580 | 16, /* rightshift */ | |
| c94cb026 | 1581 | 4, /* size */ |
| 49df5539 | 1582 | 16, /* bitsize */ |
| 0a1b45a2 | 1583 | false, /* pc_relative */ |
| 49df5539 JW |
1584 | 0, /* bitpos */ |
| 1585 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1586 | bfd_elf_generic_reloc, /* special_function */ | |
| 1587 | AARCH64_R_STR (TLSLD_MOVW_DTPREL_G1), /* name */ | |
| 0a1b45a2 | 1588 | false, /* partial_inplace */ |
| 13a3cad6 | 1589 | 0, /* src_mask */ |
| 49df5539 | 1590 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1591 | false), /* pcrel_offset */ |
| 49df5539 JW |
1592 | |
| 1593 | /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1. */ | |
| 1594 | HOWTO64 (AARCH64_R (TLSLD_MOVW_DTPREL_G1_NC), /* type */ | |
| 1595 | 16, /* rightshift */ | |
| c94cb026 | 1596 | 4, /* size */ |
| 49df5539 | 1597 | 16, /* bitsize */ |
| 0a1b45a2 | 1598 | false, /* pc_relative */ |
| 49df5539 JW |
1599 | 0, /* bitpos */ |
| 1600 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1601 | bfd_elf_generic_reloc, /* special_function */ | |
| 1602 | AARCH64_R_STR (TLSLD_MOVW_DTPREL_G1_NC), /* name */ | |
| 0a1b45a2 | 1603 | false, /* partial_inplace */ |
| 13a3cad6 | 1604 | 0, /* src_mask */ |
| 49df5539 | 1605 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1606 | false), /* pcrel_offset */ |
| 49df5539 JW |
1607 | |
| 1608 | /* MOVZ: bit[47:32] of byte offset to module TLS base address. */ | |
| 1609 | HOWTO64 (AARCH64_R (TLSLD_MOVW_DTPREL_G2), /* type */ | |
| 1610 | 32, /* rightshift */ | |
| c94cb026 | 1611 | 4, /* size */ |
| 49df5539 | 1612 | 16, /* bitsize */ |
| 0a1b45a2 | 1613 | false, /* pc_relative */ |
| 49df5539 JW |
1614 | 0, /* bitpos */ |
| 1615 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1616 | bfd_elf_generic_reloc, /* special_function */ | |
| 1617 | AARCH64_R_STR (TLSLD_MOVW_DTPREL_G2), /* name */ | |
| 0a1b45a2 | 1618 | false, /* partial_inplace */ |
| 13a3cad6 | 1619 | 0, /* src_mask */ |
| 49df5539 | 1620 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1621 | false), /* pcrel_offset */ |
| 49df5539 | 1622 | |
| a6bb11b2 | 1623 | HOWTO64 (AARCH64_R (TLSLE_MOVW_TPREL_G2), /* type */ |
| bb3f9ed8 | 1624 | 32, /* rightshift */ |
| c94cb026 | 1625 | 4, /* size */ |
| 07875fbc | 1626 | 16, /* bitsize */ |
| 0a1b45a2 | 1627 | false, /* pc_relative */ |
| a06ea964 | 1628 | 0, /* bitpos */ |
| 0172429c | 1629 | complain_overflow_unsigned, /* complain_on_overflow */ |
| a06ea964 | 1630 | bfd_elf_generic_reloc, /* special_function */ |
| a6bb11b2 | 1631 | AARCH64_R_STR (TLSLE_MOVW_TPREL_G2), /* name */ |
| 0a1b45a2 | 1632 | false, /* partial_inplace */ |
| 13a3cad6 | 1633 | 0, /* src_mask */ |
| a06ea964 | 1634 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1635 | false), /* pcrel_offset */ |
| a06ea964 | 1636 | |
| a6bb11b2 | 1637 | HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G1), /* type */ |
| bb3f9ed8 | 1638 | 16, /* rightshift */ |
| c94cb026 | 1639 | 4, /* size */ |
| 07875fbc | 1640 | 16, /* bitsize */ |
| 0a1b45a2 | 1641 | false, /* pc_relative */ |
| a06ea964 NC |
1642 | 0, /* bitpos */ |
| 1643 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1644 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1645 | AARCH64_R_STR (TLSLE_MOVW_TPREL_G1), /* name */ |
| 0a1b45a2 | 1646 | false, /* partial_inplace */ |
| 13a3cad6 | 1647 | 0, /* src_mask */ |
| a06ea964 | 1648 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1649 | false), /* pcrel_offset */ |
| a06ea964 | 1650 | |
| a6bb11b2 | 1651 | HOWTO64 (AARCH64_R (TLSLE_MOVW_TPREL_G1_NC), /* type */ |
| bb3f9ed8 | 1652 | 16, /* rightshift */ |
| c94cb026 | 1653 | 4, /* size */ |
| 07875fbc | 1654 | 16, /* bitsize */ |
| 0a1b45a2 | 1655 | false, /* pc_relative */ |
| a06ea964 NC |
1656 | 0, /* bitpos */ |
| 1657 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1658 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1659 | AARCH64_R_STR (TLSLE_MOVW_TPREL_G1_NC), /* name */ |
| 0a1b45a2 | 1660 | false, /* partial_inplace */ |
| 13a3cad6 | 1661 | 0, /* src_mask */ |
| a06ea964 | 1662 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1663 | false), /* pcrel_offset */ |
| a06ea964 | 1664 | |
| a6bb11b2 | 1665 | HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G0), /* type */ |
| a06ea964 | 1666 | 0, /* rightshift */ |
| c94cb026 | 1667 | 4, /* size */ |
| 07875fbc | 1668 | 16, /* bitsize */ |
| 0a1b45a2 | 1669 | false, /* pc_relative */ |
| a06ea964 NC |
1670 | 0, /* bitpos */ |
| 1671 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1672 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1673 | AARCH64_R_STR (TLSLE_MOVW_TPREL_G0), /* name */ |
| 0a1b45a2 | 1674 | false, /* partial_inplace */ |
| 13a3cad6 | 1675 | 0, /* src_mask */ |
| a06ea964 | 1676 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1677 | false), /* pcrel_offset */ |
| a06ea964 | 1678 | |
| a6bb11b2 | 1679 | HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G0_NC), /* type */ |
| a06ea964 | 1680 | 0, /* rightshift */ |
| c94cb026 | 1681 | 4, /* size */ |
| 07875fbc | 1682 | 16, /* bitsize */ |
| 0a1b45a2 | 1683 | false, /* pc_relative */ |
| a06ea964 NC |
1684 | 0, /* bitpos */ |
| 1685 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1686 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1687 | AARCH64_R_STR (TLSLE_MOVW_TPREL_G0_NC), /* name */ |
| 0a1b45a2 | 1688 | false, /* partial_inplace */ |
| 13a3cad6 | 1689 | 0, /* src_mask */ |
| a06ea964 | 1690 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1691 | false), /* pcrel_offset */ |
| a06ea964 | 1692 | |
| a6bb11b2 | 1693 | HOWTO (AARCH64_R (TLSLE_ADD_TPREL_HI12), /* type */ |
| bb3f9ed8 | 1694 | 12, /* rightshift */ |
| c94cb026 | 1695 | 4, /* size */ |
| a06ea964 | 1696 | 12, /* bitsize */ |
| 0a1b45a2 | 1697 | false, /* pc_relative */ |
| a06ea964 | 1698 | 0, /* bitpos */ |
| bab91cce | 1699 | complain_overflow_unsigned, /* complain_on_overflow */ |
| a06ea964 | 1700 | bfd_elf_generic_reloc, /* special_function */ |
| a6bb11b2 | 1701 | AARCH64_R_STR (TLSLE_ADD_TPREL_HI12), /* name */ |
| 0a1b45a2 | 1702 | false, /* partial_inplace */ |
| 13a3cad6 | 1703 | 0, /* src_mask */ |
| a06ea964 | 1704 | 0xfff, /* dst_mask */ |
| 0a1b45a2 | 1705 | false), /* pcrel_offset */ |
| a06ea964 | 1706 | |
| a6bb11b2 | 1707 | HOWTO (AARCH64_R (TLSLE_ADD_TPREL_LO12), /* type */ |
| a06ea964 | 1708 | 0, /* rightshift */ |
| c94cb026 | 1709 | 4, /* size */ |
| a06ea964 | 1710 | 12, /* bitsize */ |
| 0a1b45a2 | 1711 | false, /* pc_relative */ |
| a06ea964 | 1712 | 0, /* bitpos */ |
| 36e6c140 | 1713 | complain_overflow_unsigned, /* complain_on_overflow */ |
| a06ea964 | 1714 | bfd_elf_generic_reloc, /* special_function */ |
| a6bb11b2 | 1715 | AARCH64_R_STR (TLSLE_ADD_TPREL_LO12), /* name */ |
| 0a1b45a2 | 1716 | false, /* partial_inplace */ |
| 13a3cad6 | 1717 | 0, /* src_mask */ |
| a06ea964 | 1718 | 0xfff, /* dst_mask */ |
| 0a1b45a2 | 1719 | false), /* pcrel_offset */ |
| a06ea964 | 1720 | |
| a6bb11b2 | 1721 | HOWTO (AARCH64_R (TLSLE_ADD_TPREL_LO12_NC), /* type */ |
| a06ea964 | 1722 | 0, /* rightshift */ |
| c94cb026 | 1723 | 4, /* size */ |
| a06ea964 | 1724 | 12, /* bitsize */ |
| 0a1b45a2 | 1725 | false, /* pc_relative */ |
| a06ea964 NC |
1726 | 0, /* bitpos */ |
| 1727 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1728 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1729 | AARCH64_R_STR (TLSLE_ADD_TPREL_LO12_NC), /* name */ |
| 0a1b45a2 | 1730 | false, /* partial_inplace */ |
| 13a3cad6 | 1731 | 0, /* src_mask */ |
| a06ea964 | 1732 | 0xfff, /* dst_mask */ |
| 0a1b45a2 | 1733 | false), /* pcrel_offset */ |
| a06ea964 | 1734 | |
| 84f1b9fb RL |
1735 | /* LD/ST16: bit[11:1] of byte offset to module TLS base address. */ |
| 1736 | HOWTO (AARCH64_R (TLSLE_LDST16_TPREL_LO12), /* type */ | |
| 1737 | 1, /* rightshift */ | |
| c94cb026 | 1738 | 4, /* size */ |
| 84f1b9fb | 1739 | 11, /* bitsize */ |
| 0a1b45a2 | 1740 | false, /* pc_relative */ |
| 84f1b9fb RL |
1741 | 10, /* bitpos */ |
| 1742 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1743 | bfd_elf_generic_reloc, /* special_function */ | |
| 1744 | AARCH64_R_STR (TLSLE_LDST16_TPREL_LO12), /* name */ | |
| 0a1b45a2 | 1745 | false, /* partial_inplace */ |
| 13a3cad6 | 1746 | 0, /* src_mask */ |
| 84f1b9fb | 1747 | 0x1ffc00, /* dst_mask */ |
| 0a1b45a2 | 1748 | false), /* pcrel_offset */ |
| 84f1b9fb RL |
1749 | |
| 1750 | /* Same as BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12, but no overflow check. */ | |
| 1751 | HOWTO (AARCH64_R (TLSLE_LDST16_TPREL_LO12_NC), /* type */ | |
| 1752 | 1, /* rightshift */ | |
| c94cb026 | 1753 | 4, /* size */ |
| 84f1b9fb | 1754 | 11, /* bitsize */ |
| 0a1b45a2 | 1755 | false, /* pc_relative */ |
| 84f1b9fb RL |
1756 | 10, /* bitpos */ |
| 1757 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1758 | bfd_elf_generic_reloc, /* special_function */ | |
| 1759 | AARCH64_R_STR (TLSLE_LDST16_TPREL_LO12_NC), /* name */ | |
| 0a1b45a2 | 1760 | false, /* partial_inplace */ |
| 13a3cad6 | 1761 | 0, /* src_mask */ |
| 84f1b9fb | 1762 | 0x1ffc00, /* dst_mask */ |
| 0a1b45a2 | 1763 | false), /* pcrel_offset */ |
| 84f1b9fb RL |
1764 | |
| 1765 | /* LD/ST32: bit[11:2] of byte offset to module TLS base address. */ | |
| 1766 | HOWTO (AARCH64_R (TLSLE_LDST32_TPREL_LO12), /* type */ | |
| 1767 | 2, /* rightshift */ | |
| c94cb026 | 1768 | 4, /* size */ |
| 84f1b9fb | 1769 | 10, /* bitsize */ |
| 0a1b45a2 | 1770 | false, /* pc_relative */ |
| 84f1b9fb RL |
1771 | 10, /* bitpos */ |
| 1772 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1773 | bfd_elf_generic_reloc, /* special_function */ | |
| 1774 | AARCH64_R_STR (TLSLE_LDST32_TPREL_LO12), /* name */ | |
| 0a1b45a2 | 1775 | false, /* partial_inplace */ |
| 13a3cad6 | 1776 | 0, /* src_mask */ |
| 84f1b9fb | 1777 | 0xffc00, /* dst_mask */ |
| 0a1b45a2 | 1778 | false), /* pcrel_offset */ |
| 84f1b9fb RL |
1779 | |
| 1780 | /* Same as BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12, but no overflow check. */ | |
| 1781 | HOWTO (AARCH64_R (TLSLE_LDST32_TPREL_LO12_NC), /* type */ | |
| 1782 | 2, /* rightshift */ | |
| c94cb026 | 1783 | 4, /* size */ |
| 84f1b9fb | 1784 | 10, /* bitsize */ |
| 0a1b45a2 | 1785 | false, /* pc_relative */ |
| 84f1b9fb RL |
1786 | 10, /* bitpos */ |
| 1787 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1788 | bfd_elf_generic_reloc, /* special_function */ | |
| 1789 | AARCH64_R_STR (TLSLE_LDST32_TPREL_LO12_NC), /* name */ | |
| 0a1b45a2 | 1790 | false, /* partial_inplace */ |
| 13a3cad6 | 1791 | 0, /* src_mask */ |
| 84f1b9fb | 1792 | 0xffc00, /* dst_mask */ |
| 0a1b45a2 | 1793 | false), /* pcrel_offset */ |
| 84f1b9fb RL |
1794 | |
| 1795 | /* LD/ST64: bit[11:3] of byte offset to module TLS base address. */ | |
| 1796 | HOWTO (AARCH64_R (TLSLE_LDST64_TPREL_LO12), /* type */ | |
| 1797 | 3, /* rightshift */ | |
| c94cb026 | 1798 | 4, /* size */ |
| 84f1b9fb | 1799 | 9, /* bitsize */ |
| 0a1b45a2 | 1800 | false, /* pc_relative */ |
| 84f1b9fb RL |
1801 | 10, /* bitpos */ |
| 1802 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1803 | bfd_elf_generic_reloc, /* special_function */ | |
| 1804 | AARCH64_R_STR (TLSLE_LDST64_TPREL_LO12), /* name */ | |
| 0a1b45a2 | 1805 | false, /* partial_inplace */ |
| 13a3cad6 | 1806 | 0, /* src_mask */ |
| 84f1b9fb | 1807 | 0x7fc00, /* dst_mask */ |
| 0a1b45a2 | 1808 | false), /* pcrel_offset */ |
| 84f1b9fb RL |
1809 | |
| 1810 | /* Same as BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12, but no overflow check. */ | |
| 1811 | HOWTO (AARCH64_R (TLSLE_LDST64_TPREL_LO12_NC), /* type */ | |
| 1812 | 3, /* rightshift */ | |
| c94cb026 | 1813 | 4, /* size */ |
| 84f1b9fb | 1814 | 9, /* bitsize */ |
| 0a1b45a2 | 1815 | false, /* pc_relative */ |
| 84f1b9fb RL |
1816 | 10, /* bitpos */ |
| 1817 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1818 | bfd_elf_generic_reloc, /* special_function */ | |
| 1819 | AARCH64_R_STR (TLSLE_LDST64_TPREL_LO12_NC), /* name */ | |
| 0a1b45a2 | 1820 | false, /* partial_inplace */ |
| 13a3cad6 | 1821 | 0, /* src_mask */ |
| 84f1b9fb | 1822 | 0x7fc00, /* dst_mask */ |
| 0a1b45a2 | 1823 | false), /* pcrel_offset */ |
| 84f1b9fb RL |
1824 | |
| 1825 | /* LD/ST8: bit[11:0] of byte offset to module TLS base address. */ | |
| 1826 | HOWTO (AARCH64_R (TLSLE_LDST8_TPREL_LO12), /* type */ | |
| 1827 | 0, /* rightshift */ | |
| c94cb026 | 1828 | 4, /* size */ |
| 84f1b9fb | 1829 | 12, /* bitsize */ |
| 0a1b45a2 | 1830 | false, /* pc_relative */ |
| 84f1b9fb RL |
1831 | 10, /* bitpos */ |
| 1832 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1833 | bfd_elf_generic_reloc, /* special_function */ | |
| 1834 | AARCH64_R_STR (TLSLE_LDST8_TPREL_LO12), /* name */ | |
| 0a1b45a2 | 1835 | false, /* partial_inplace */ |
| 13a3cad6 | 1836 | 0, /* src_mask */ |
| 84f1b9fb | 1837 | 0x3ffc00, /* dst_mask */ |
| 0a1b45a2 | 1838 | false), /* pcrel_offset */ |
| 84f1b9fb RL |
1839 | |
| 1840 | /* Same as BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12, but no overflow check. */ | |
| 1841 | HOWTO (AARCH64_R (TLSLE_LDST8_TPREL_LO12_NC), /* type */ | |
| 1842 | 0, /* rightshift */ | |
| c94cb026 | 1843 | 4, /* size */ |
| 84f1b9fb | 1844 | 12, /* bitsize */ |
| 0a1b45a2 | 1845 | false, /* pc_relative */ |
| 84f1b9fb RL |
1846 | 10, /* bitpos */ |
| 1847 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1848 | bfd_elf_generic_reloc, /* special_function */ | |
| 1849 | AARCH64_R_STR (TLSLE_LDST8_TPREL_LO12_NC), /* name */ | |
| 0a1b45a2 | 1850 | false, /* partial_inplace */ |
| 13a3cad6 | 1851 | 0, /* src_mask */ |
| 84f1b9fb | 1852 | 0x3ffc00, /* dst_mask */ |
| 0a1b45a2 | 1853 | false), /* pcrel_offset */ |
| 84f1b9fb | 1854 | |
| a6bb11b2 | 1855 | HOWTO (AARCH64_R (TLSDESC_LD_PREL19), /* type */ |
| bb3f9ed8 | 1856 | 2, /* rightshift */ |
| c94cb026 | 1857 | 4, /* size */ |
| 1ada945d | 1858 | 19, /* bitsize */ |
| 0a1b45a2 | 1859 | true, /* pc_relative */ |
| a06ea964 NC |
1860 | 0, /* bitpos */ |
| 1861 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1862 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1863 | AARCH64_R_STR (TLSDESC_LD_PREL19), /* name */ |
| 0a1b45a2 | 1864 | false, /* partial_inplace */ |
| 13a3cad6 | 1865 | 0, /* src_mask */ |
| 1ada945d | 1866 | 0x0ffffe0, /* dst_mask */ |
| 0a1b45a2 | 1867 | true), /* pcrel_offset */ |
| a06ea964 | 1868 | |
| a6bb11b2 | 1869 | HOWTO (AARCH64_R (TLSDESC_ADR_PREL21), /* type */ |
| a06ea964 | 1870 | 0, /* rightshift */ |
| c94cb026 | 1871 | 4, /* size */ |
| a06ea964 | 1872 | 21, /* bitsize */ |
| 0a1b45a2 | 1873 | true, /* pc_relative */ |
| a06ea964 NC |
1874 | 0, /* bitpos */ |
| 1875 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1876 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1877 | AARCH64_R_STR (TLSDESC_ADR_PREL21), /* name */ |
| 0a1b45a2 | 1878 | false, /* partial_inplace */ |
| 13a3cad6 | 1879 | 0, /* src_mask */ |
| a06ea964 | 1880 | 0x1fffff, /* dst_mask */ |
| 0a1b45a2 | 1881 | true), /* pcrel_offset */ |
| a06ea964 NC |
1882 | |
| 1883 | /* Get to the page for the GOT entry for the symbol | |
| 1884 | (G(S) - P) using an ADRP instruction. */ | |
| a6bb11b2 | 1885 | HOWTO (AARCH64_R (TLSDESC_ADR_PAGE21), /* type */ |
| a06ea964 | 1886 | 12, /* rightshift */ |
| c94cb026 | 1887 | 4, /* size */ |
| a06ea964 | 1888 | 21, /* bitsize */ |
| 0a1b45a2 | 1889 | true, /* pc_relative */ |
| a06ea964 NC |
1890 | 0, /* bitpos */ |
| 1891 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1892 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1893 | AARCH64_R_STR (TLSDESC_ADR_PAGE21), /* name */ |
| 0a1b45a2 | 1894 | false, /* partial_inplace */ |
| 13a3cad6 | 1895 | 0, /* src_mask */ |
| a06ea964 | 1896 | 0x1fffff, /* dst_mask */ |
| 0a1b45a2 | 1897 | true), /* pcrel_offset */ |
| a06ea964 | 1898 | |
| a6bb11b2 | 1899 | /* LD64: GOT offset G(S) & 0xff8. */ |
| f955cccf | 1900 | HOWTO64 (AARCH64_R (TLSDESC_LD64_LO12), /* type */ |
| a06ea964 | 1901 | 3, /* rightshift */ |
| c94cb026 | 1902 | 4, /* size */ |
| a06ea964 | 1903 | 12, /* bitsize */ |
| 0a1b45a2 | 1904 | false, /* pc_relative */ |
| a06ea964 NC |
1905 | 0, /* bitpos */ |
| 1906 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1907 | bfd_elf_generic_reloc, /* special_function */ | |
| f955cccf | 1908 | AARCH64_R_STR (TLSDESC_LD64_LO12), /* name */ |
| 0a1b45a2 | 1909 | false, /* partial_inplace */ |
| 13a3cad6 | 1910 | 0, /* src_mask */ |
| a6bb11b2 | 1911 | 0xff8, /* dst_mask */ |
| 0a1b45a2 | 1912 | false), /* pcrel_offset */ |
| a6bb11b2 YZ |
1913 | |
| 1914 | /* LD32: GOT offset G(S) & 0xffc. */ | |
| 1915 | HOWTO32 (AARCH64_R (TLSDESC_LD32_LO12_NC), /* type */ | |
| 1916 | 2, /* rightshift */ | |
| c94cb026 | 1917 | 4, /* size */ |
| a6bb11b2 | 1918 | 12, /* bitsize */ |
| 0a1b45a2 | 1919 | false, /* pc_relative */ |
| a6bb11b2 YZ |
1920 | 0, /* bitpos */ |
| 1921 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1922 | bfd_elf_generic_reloc, /* special_function */ | |
| 1923 | AARCH64_R_STR (TLSDESC_LD32_LO12_NC), /* name */ | |
| 0a1b45a2 | 1924 | false, /* partial_inplace */ |
| 13a3cad6 | 1925 | 0, /* src_mask */ |
| a6bb11b2 | 1926 | 0xffc, /* dst_mask */ |
| 0a1b45a2 | 1927 | false), /* pcrel_offset */ |
| a06ea964 NC |
1928 | |
| 1929 | /* ADD: GOT offset G(S) & 0xfff. */ | |
| f955cccf | 1930 | HOWTO (AARCH64_R (TLSDESC_ADD_LO12), /* type */ |
| a06ea964 | 1931 | 0, /* rightshift */ |
| c94cb026 | 1932 | 4, /* size */ |
| a06ea964 | 1933 | 12, /* bitsize */ |
| 0a1b45a2 | 1934 | false, /* pc_relative */ |
| a06ea964 | 1935 | 0, /* bitpos */ |
| f955cccf | 1936 | complain_overflow_dont,/* complain_on_overflow */ |
| a06ea964 | 1937 | bfd_elf_generic_reloc, /* special_function */ |
| f955cccf | 1938 | AARCH64_R_STR (TLSDESC_ADD_LO12), /* name */ |
| 0a1b45a2 | 1939 | false, /* partial_inplace */ |
| 13a3cad6 | 1940 | 0, /* src_mask */ |
| a06ea964 | 1941 | 0xfff, /* dst_mask */ |
| 0a1b45a2 | 1942 | false), /* pcrel_offset */ |
| a06ea964 | 1943 | |
| a6bb11b2 | 1944 | HOWTO64 (AARCH64_R (TLSDESC_OFF_G1), /* type */ |
| bb3f9ed8 | 1945 | 16, /* rightshift */ |
| c94cb026 | 1946 | 4, /* size */ |
| a06ea964 | 1947 | 12, /* bitsize */ |
| 0a1b45a2 | 1948 | false, /* pc_relative */ |
| a06ea964 | 1949 | 0, /* bitpos */ |
| 43a357f9 | 1950 | complain_overflow_unsigned, /* complain_on_overflow */ |
| a06ea964 | 1951 | bfd_elf_generic_reloc, /* special_function */ |
| a6bb11b2 | 1952 | AARCH64_R_STR (TLSDESC_OFF_G1), /* name */ |
| 0a1b45a2 | 1953 | false, /* partial_inplace */ |
| 13a3cad6 | 1954 | 0, /* src_mask */ |
| a06ea964 | 1955 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1956 | false), /* pcrel_offset */ |
| a06ea964 | 1957 | |
| a6bb11b2 | 1958 | HOWTO64 (AARCH64_R (TLSDESC_OFF_G0_NC), /* type */ |
| a06ea964 | 1959 | 0, /* rightshift */ |
| c94cb026 | 1960 | 4, /* size */ |
| a06ea964 | 1961 | 12, /* bitsize */ |
| 0a1b45a2 | 1962 | false, /* pc_relative */ |
| a06ea964 NC |
1963 | 0, /* bitpos */ |
| 1964 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1965 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1966 | AARCH64_R_STR (TLSDESC_OFF_G0_NC), /* name */ |
| 0a1b45a2 | 1967 | false, /* partial_inplace */ |
| 13a3cad6 | 1968 | 0, /* src_mask */ |
| a06ea964 | 1969 | 0xffff, /* dst_mask */ |
| 0a1b45a2 | 1970 | false), /* pcrel_offset */ |
| a06ea964 | 1971 | |
| a6bb11b2 | 1972 | HOWTO64 (AARCH64_R (TLSDESC_LDR), /* type */ |
| a06ea964 | 1973 | 0, /* rightshift */ |
| c94cb026 | 1974 | 4, /* size */ |
| a06ea964 | 1975 | 12, /* bitsize */ |
| 0a1b45a2 | 1976 | false, /* pc_relative */ |
| a06ea964 NC |
1977 | 0, /* bitpos */ |
| 1978 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1979 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1980 | AARCH64_R_STR (TLSDESC_LDR), /* name */ |
| 0a1b45a2 | 1981 | false, /* partial_inplace */ |
| a06ea964 NC |
1982 | 0x0, /* src_mask */ |
| 1983 | 0x0, /* dst_mask */ | |
| 0a1b45a2 | 1984 | false), /* pcrel_offset */ |
| a06ea964 | 1985 | |
| a6bb11b2 | 1986 | HOWTO64 (AARCH64_R (TLSDESC_ADD), /* type */ |
| a06ea964 | 1987 | 0, /* rightshift */ |
| c94cb026 | 1988 | 4, /* size */ |
| a06ea964 | 1989 | 12, /* bitsize */ |
| 0a1b45a2 | 1990 | false, /* pc_relative */ |
| a06ea964 NC |
1991 | 0, /* bitpos */ |
| 1992 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1993 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1994 | AARCH64_R_STR (TLSDESC_ADD), /* name */ |
| 0a1b45a2 | 1995 | false, /* partial_inplace */ |
| a06ea964 NC |
1996 | 0x0, /* src_mask */ |
| 1997 | 0x0, /* dst_mask */ | |
| 0a1b45a2 | 1998 | false), /* pcrel_offset */ |
| a06ea964 | 1999 | |
| a6bb11b2 | 2000 | HOWTO (AARCH64_R (TLSDESC_CALL), /* type */ |
| a06ea964 | 2001 | 0, /* rightshift */ |
| c94cb026 | 2002 | 4, /* size */ |
| 7366006f | 2003 | 0, /* bitsize */ |
| 0a1b45a2 | 2004 | false, /* pc_relative */ |
| a06ea964 NC |
2005 | 0, /* bitpos */ |
| 2006 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2007 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 2008 | AARCH64_R_STR (TLSDESC_CALL), /* name */ |
| 0a1b45a2 | 2009 | false, /* partial_inplace */ |
| a06ea964 NC |
2010 | 0x0, /* src_mask */ |
| 2011 | 0x0, /* dst_mask */ | |
| 0a1b45a2 | 2012 | false), /* pcrel_offset */ |
| a6bb11b2 YZ |
2013 | |
| 2014 | HOWTO (AARCH64_R (COPY), /* type */ | |
| 2015 | 0, /* rightshift */ | |
| c94cb026 | 2016 | 4, /* size */ |
| a6bb11b2 | 2017 | 64, /* bitsize */ |
| 0a1b45a2 | 2018 | false, /* pc_relative */ |
| a6bb11b2 YZ |
2019 | 0, /* bitpos */ |
| 2020 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2021 | bfd_elf_generic_reloc, /* special_function */ | |
| 2022 | AARCH64_R_STR (COPY), /* name */ | |
| 0a1b45a2 | 2023 | true, /* partial_inplace */ |
| 13a3cad6 | 2024 | 0, /* src_mask */ |
| a6bb11b2 | 2025 | 0xffffffff, /* dst_mask */ |
| 0a1b45a2 | 2026 | false), /* pcrel_offset */ |
| a6bb11b2 YZ |
2027 | |
| 2028 | HOWTO (AARCH64_R (GLOB_DAT), /* type */ | |
| 2029 | 0, /* rightshift */ | |
| c94cb026 | 2030 | 4, /* size */ |
| a6bb11b2 | 2031 | 64, /* bitsize */ |
| 0a1b45a2 | 2032 | false, /* pc_relative */ |
| a6bb11b2 YZ |
2033 | 0, /* bitpos */ |
| 2034 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2035 | bfd_elf_generic_reloc, /* special_function */ | |
| 2036 | AARCH64_R_STR (GLOB_DAT), /* name */ | |
| 0a1b45a2 | 2037 | true, /* partial_inplace */ |
| 13a3cad6 | 2038 | 0, /* src_mask */ |
| a6bb11b2 | 2039 | 0xffffffff, /* dst_mask */ |
| 0a1b45a2 | 2040 | false), /* pcrel_offset */ |
| a6bb11b2 YZ |
2041 | |
| 2042 | HOWTO (AARCH64_R (JUMP_SLOT), /* type */ | |
| 2043 | 0, /* rightshift */ | |
| c94cb026 | 2044 | 4, /* size */ |
| a6bb11b2 | 2045 | 64, /* bitsize */ |
| 0a1b45a2 | 2046 | false, /* pc_relative */ |
| a6bb11b2 YZ |
2047 | 0, /* bitpos */ |
| 2048 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2049 | bfd_elf_generic_reloc, /* special_function */ | |
| 2050 | AARCH64_R_STR (JUMP_SLOT), /* name */ | |
| 0a1b45a2 | 2051 | true, /* partial_inplace */ |
| 13a3cad6 | 2052 | 0, /* src_mask */ |
| a6bb11b2 | 2053 | 0xffffffff, /* dst_mask */ |
| 0a1b45a2 | 2054 | false), /* pcrel_offset */ |
| a6bb11b2 YZ |
2055 | |
| 2056 | HOWTO (AARCH64_R (RELATIVE), /* type */ | |
| 2057 | 0, /* rightshift */ | |
| c94cb026 | 2058 | 4, /* size */ |
| a6bb11b2 | 2059 | 64, /* bitsize */ |
| 0a1b45a2 | 2060 | false, /* pc_relative */ |
| a6bb11b2 YZ |
2061 | 0, /* bitpos */ |
| 2062 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2063 | bfd_elf_generic_reloc, /* special_function */ | |
| 2064 | AARCH64_R_STR (RELATIVE), /* name */ | |
| 0a1b45a2 | 2065 | true, /* partial_inplace */ |
| 13a3cad6 | 2066 | 0, /* src_mask */ |
| a6bb11b2 | 2067 | ALL_ONES, /* dst_mask */ |
| 0a1b45a2 | 2068 | false), /* pcrel_offset */ |
| a6bb11b2 YZ |
2069 | |
| 2070 | HOWTO (AARCH64_R (TLS_DTPMOD), /* type */ | |
| 2071 | 0, /* rightshift */ | |
| c94cb026 | 2072 | 4, /* size */ |
| a6bb11b2 | 2073 | 64, /* bitsize */ |
| 0a1b45a2 | 2074 | false, /* pc_relative */ |
| a6bb11b2 YZ |
2075 | 0, /* bitpos */ |
| 2076 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2077 | bfd_elf_generic_reloc, /* special_function */ | |
| da0781dc YZ |
2078 | #if ARCH_SIZE == 64 |
| 2079 | AARCH64_R_STR (TLS_DTPMOD64), /* name */ | |
| 2080 | #else | |
| a6bb11b2 | 2081 | AARCH64_R_STR (TLS_DTPMOD), /* name */ |
| da0781dc | 2082 | #endif |
| 0a1b45a2 | 2083 | false, /* partial_inplace */ |
| a6bb11b2 YZ |
2084 | 0, /* src_mask */ |
| 2085 | ALL_ONES, /* dst_mask */ | |
| 0a1b45a2 | 2086 | false), /* pc_reloffset */ |
| a6bb11b2 YZ |
2087 | |
| 2088 | HOWTO (AARCH64_R (TLS_DTPREL), /* type */ | |
| 2089 | 0, /* rightshift */ | |
| c94cb026 | 2090 | 4, /* size */ |
| a6bb11b2 | 2091 | 64, /* bitsize */ |
| 0a1b45a2 | 2092 | false, /* pc_relative */ |
| a6bb11b2 YZ |
2093 | 0, /* bitpos */ |
| 2094 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2095 | bfd_elf_generic_reloc, /* special_function */ | |
| da0781dc YZ |
2096 | #if ARCH_SIZE == 64 |
| 2097 | AARCH64_R_STR (TLS_DTPREL64), /* name */ | |
| 2098 | #else | |
| a6bb11b2 | 2099 | AARCH64_R_STR (TLS_DTPREL), /* name */ |
| da0781dc | 2100 | #endif |
| 0a1b45a2 | 2101 | false, /* partial_inplace */ |
| a6bb11b2 YZ |
2102 | 0, /* src_mask */ |
| 2103 | ALL_ONES, /* dst_mask */ | |
| 0a1b45a2 | 2104 | false), /* pcrel_offset */ |
| a6bb11b2 YZ |
2105 | |
| 2106 | HOWTO (AARCH64_R (TLS_TPREL), /* type */ | |
| 2107 | 0, /* rightshift */ | |
| c94cb026 | 2108 | 4, /* size */ |
| a6bb11b2 | 2109 | 64, /* bitsize */ |
| 0a1b45a2 | 2110 | false, /* pc_relative */ |
| a6bb11b2 YZ |
2111 | 0, /* bitpos */ |
| 2112 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2113 | bfd_elf_generic_reloc, /* special_function */ | |
| da0781dc YZ |
2114 | #if ARCH_SIZE == 64 |
| 2115 | AARCH64_R_STR (TLS_TPREL64), /* name */ | |
| 2116 | #else | |
| a6bb11b2 | 2117 | AARCH64_R_STR (TLS_TPREL), /* name */ |
| da0781dc | 2118 | #endif |
| 0a1b45a2 | 2119 | false, /* partial_inplace */ |
| a6bb11b2 YZ |
2120 | 0, /* src_mask */ |
| 2121 | ALL_ONES, /* dst_mask */ | |
| 0a1b45a2 | 2122 | false), /* pcrel_offset */ |
| a6bb11b2 YZ |
2123 | |
| 2124 | HOWTO (AARCH64_R (TLSDESC), /* type */ | |
| 2125 | 0, /* rightshift */ | |
| c94cb026 | 2126 | 4, /* size */ |
| a6bb11b2 | 2127 | 64, /* bitsize */ |
| 0a1b45a2 | 2128 | false, /* pc_relative */ |
| a6bb11b2 YZ |
2129 | 0, /* bitpos */ |
| 2130 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2131 | bfd_elf_generic_reloc, /* special_function */ | |
| 2132 | AARCH64_R_STR (TLSDESC), /* name */ | |
| 0a1b45a2 | 2133 | false, /* partial_inplace */ |
| a6bb11b2 YZ |
2134 | 0, /* src_mask */ |
| 2135 | ALL_ONES, /* dst_mask */ | |
| 0a1b45a2 | 2136 | false), /* pcrel_offset */ |
| a6bb11b2 YZ |
2137 | |
| 2138 | HOWTO (AARCH64_R (IRELATIVE), /* type */ | |
| 2139 | 0, /* rightshift */ | |
| c94cb026 | 2140 | 4, /* size */ |
| a6bb11b2 | 2141 | 64, /* bitsize */ |
| 0a1b45a2 | 2142 | false, /* pc_relative */ |
| a6bb11b2 YZ |
2143 | 0, /* bitpos */ |
| 2144 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2145 | bfd_elf_generic_reloc, /* special_function */ | |
| 2146 | AARCH64_R_STR (IRELATIVE), /* name */ | |
| 0a1b45a2 | 2147 | false, /* partial_inplace */ |
| a6bb11b2 YZ |
2148 | 0, /* src_mask */ |
| 2149 | ALL_ONES, /* dst_mask */ | |
| 0a1b45a2 | 2150 | false), /* pcrel_offset */ |
| a6bb11b2 YZ |
2151 | |
| 2152 | EMPTY_HOWTO (0), | |
| a06ea964 NC |
2153 | }; |
| 2154 | ||
| a6bb11b2 YZ |
2155 | static reloc_howto_type elfNN_aarch64_howto_none = |
| 2156 | HOWTO (R_AARCH64_NONE, /* type */ | |
| 2157 | 0, /* rightshift */ | |
| c94cb026 | 2158 | 0, /* size */ |
| a6bb11b2 | 2159 | 0, /* bitsize */ |
| 0a1b45a2 | 2160 | false, /* pc_relative */ |
| a6bb11b2 YZ |
2161 | 0, /* bitpos */ |
| 2162 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2163 | bfd_elf_generic_reloc, /* special_function */ | |
| 2164 | "R_AARCH64_NONE", /* name */ | |
| 0a1b45a2 | 2165 | false, /* partial_inplace */ |
| a6bb11b2 YZ |
2166 | 0, /* src_mask */ |
| 2167 | 0, /* dst_mask */ | |
| 0a1b45a2 | 2168 | false); /* pcrel_offset */ |
| a6bb11b2 YZ |
2169 | |
| 2170 | /* Given HOWTO, return the bfd internal relocation enumerator. */ | |
| 2171 | ||
| 2172 | static bfd_reloc_code_real_type | |
| 2173 | elfNN_aarch64_bfd_reloc_from_howto (reloc_howto_type *howto) | |
| 2174 | { | |
| 2175 | const int size | |
| 2176 | = (int) ARRAY_SIZE (elfNN_aarch64_howto_table); | |
| 2177 | const ptrdiff_t offset | |
| 2178 | = howto - elfNN_aarch64_howto_table; | |
| 2179 | ||
| 2180 | if (offset > 0 && offset < size - 1) | |
| 2181 | return BFD_RELOC_AARCH64_RELOC_START + offset; | |
| 2182 | ||
| 2183 | if (howto == &elfNN_aarch64_howto_none) | |
| 2184 | return BFD_RELOC_AARCH64_NONE; | |
| 2185 | ||
| 2186 | return BFD_RELOC_AARCH64_RELOC_START; | |
| 2187 | } | |
| 2188 | ||
| 2189 | /* Given R_TYPE, return the bfd internal relocation enumerator. */ | |
| 2190 | ||
| 2191 | static bfd_reloc_code_real_type | |
| 0aa13fee | 2192 | elfNN_aarch64_bfd_reloc_from_type (bfd *abfd, unsigned int r_type) |
| a6bb11b2 | 2193 | { |
| 0a1b45a2 | 2194 | static bool initialized_p = false; |
| a6bb11b2 YZ |
2195 | /* Indexed by R_TYPE, values are offsets in the howto_table. */ |
| 2196 | static unsigned int offsets[R_AARCH64_end]; | |
| 2197 | ||
| 535b785f | 2198 | if (!initialized_p) |
| a6bb11b2 YZ |
2199 | { |
| 2200 | unsigned int i; | |
| 2201 | ||
| 2202 | for (i = 1; i < ARRAY_SIZE (elfNN_aarch64_howto_table) - 1; ++i) | |
| 2203 | if (elfNN_aarch64_howto_table[i].type != 0) | |
| 2204 | offsets[elfNN_aarch64_howto_table[i].type] = i; | |
| 2205 | ||
| 0a1b45a2 | 2206 | initialized_p = true; |
| a6bb11b2 YZ |
2207 | } |
| 2208 | ||
| 2209 | if (r_type == R_AARCH64_NONE || r_type == R_AARCH64_NULL) | |
| 2210 | return BFD_RELOC_AARCH64_NONE; | |
| 2211 | ||
| 5860e3f8 NC |
2212 | /* PR 17512: file: b371e70a. */ |
| 2213 | if (r_type >= R_AARCH64_end) | |
| 2214 | { | |
| 0aa13fee AM |
2215 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
| 2216 | abfd, r_type); | |
| 5860e3f8 NC |
2217 | bfd_set_error (bfd_error_bad_value); |
| 2218 | return BFD_RELOC_AARCH64_NONE; | |
| 2219 | } | |
| 2220 | ||
| a6bb11b2 YZ |
2221 | return BFD_RELOC_AARCH64_RELOC_START + offsets[r_type]; |
| 2222 | } | |
| 2223 | ||
| 2224 | struct elf_aarch64_reloc_map | |
| 2225 | { | |
| 2226 | bfd_reloc_code_real_type from; | |
| 2227 | bfd_reloc_code_real_type to; | |
| 2228 | }; | |
| 2229 | ||
| 2230 | /* Map bfd generic reloc to AArch64-specific reloc. */ | |
| 2231 | static const struct elf_aarch64_reloc_map elf_aarch64_reloc_map[] = | |
| 2232 | { | |
| 2233 | {BFD_RELOC_NONE, BFD_RELOC_AARCH64_NONE}, | |
| 2234 | ||
| 2235 | /* Basic data relocations. */ | |
| 2236 | {BFD_RELOC_CTOR, BFD_RELOC_AARCH64_NN}, | |
| 2237 | {BFD_RELOC_64, BFD_RELOC_AARCH64_64}, | |
| 2238 | {BFD_RELOC_32, BFD_RELOC_AARCH64_32}, | |
| 2239 | {BFD_RELOC_16, BFD_RELOC_AARCH64_16}, | |
| 2240 | {BFD_RELOC_64_PCREL, BFD_RELOC_AARCH64_64_PCREL}, | |
| 2241 | {BFD_RELOC_32_PCREL, BFD_RELOC_AARCH64_32_PCREL}, | |
| 2242 | {BFD_RELOC_16_PCREL, BFD_RELOC_AARCH64_16_PCREL}, | |
| 2243 | }; | |
| 2244 | ||
| 2245 | /* Given the bfd internal relocation enumerator in CODE, return the | |
| 2246 | corresponding howto entry. */ | |
| 2247 | ||
| 2248 | static reloc_howto_type * | |
| 2249 | elfNN_aarch64_howto_from_bfd_reloc (bfd_reloc_code_real_type code) | |
| 2250 | { | |
| 2251 | unsigned int i; | |
| 2252 | ||
| 2253 | /* Convert bfd generic reloc to AArch64-specific reloc. */ | |
| 2254 | if (code < BFD_RELOC_AARCH64_RELOC_START | |
| 2255 | || code > BFD_RELOC_AARCH64_RELOC_END) | |
| 2256 | for (i = 0; i < ARRAY_SIZE (elf_aarch64_reloc_map); i++) | |
| 2257 | if (elf_aarch64_reloc_map[i].from == code) | |
| 2258 | { | |
| 2259 | code = elf_aarch64_reloc_map[i].to; | |
| 2260 | break; | |
| 2261 | } | |
| 2262 | ||
| 2263 | if (code > BFD_RELOC_AARCH64_RELOC_START | |
| 2264 | && code < BFD_RELOC_AARCH64_RELOC_END) | |
| 2265 | if (elfNN_aarch64_howto_table[code - BFD_RELOC_AARCH64_RELOC_START].type) | |
| 2266 | return &elfNN_aarch64_howto_table[code - BFD_RELOC_AARCH64_RELOC_START]; | |
| 2267 | ||
| 54757ed1 AP |
2268 | if (code == BFD_RELOC_AARCH64_NONE) |
| 2269 | return &elfNN_aarch64_howto_none; | |
| 2270 | ||
| a6bb11b2 YZ |
2271 | return NULL; |
| 2272 | } | |
| 2273 | ||
| a06ea964 | 2274 | static reloc_howto_type * |
| 0aa13fee | 2275 | elfNN_aarch64_howto_from_type (bfd *abfd, unsigned int r_type) |
| a06ea964 | 2276 | { |
| a6bb11b2 YZ |
2277 | bfd_reloc_code_real_type val; |
| 2278 | reloc_howto_type *howto; | |
| 2279 | ||
| cec5225b YZ |
2280 | #if ARCH_SIZE == 32 |
| 2281 | if (r_type > 256) | |
| 2282 | { | |
| 2283 | bfd_set_error (bfd_error_bad_value); | |
| 2284 | return NULL; | |
| 2285 | } | |
| 2286 | #endif | |
| 2287 | ||
| a6bb11b2 YZ |
2288 | if (r_type == R_AARCH64_NONE) |
| 2289 | return &elfNN_aarch64_howto_none; | |
| a06ea964 | 2290 | |
| 0aa13fee | 2291 | val = elfNN_aarch64_bfd_reloc_from_type (abfd, r_type); |
| a6bb11b2 | 2292 | howto = elfNN_aarch64_howto_from_bfd_reloc (val); |
| a06ea964 | 2293 | |
| a6bb11b2 YZ |
2294 | if (howto != NULL) |
| 2295 | return howto; | |
| a06ea964 | 2296 | |
| a06ea964 NC |
2297 | bfd_set_error (bfd_error_bad_value); |
| 2298 | return NULL; | |
| 2299 | } | |
| 2300 | ||
| 0a1b45a2 | 2301 | static bool |
| 0aa13fee | 2302 | elfNN_aarch64_info_to_howto (bfd *abfd, arelent *bfd_reloc, |
| a06ea964 NC |
2303 | Elf_Internal_Rela *elf_reloc) |
| 2304 | { | |
| 2305 | unsigned int r_type; | |
| 2306 | ||
| cec5225b | 2307 | r_type = ELFNN_R_TYPE (elf_reloc->r_info); |
| 0aa13fee | 2308 | bfd_reloc->howto = elfNN_aarch64_howto_from_type (abfd, r_type); |
| f3185997 NC |
2309 | |
| 2310 | if (bfd_reloc->howto == NULL) | |
| 2311 | { | |
| 2312 | /* xgettext:c-format */ | |
| 2313 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, r_type); | |
| 0a1b45a2 | 2314 | return false; |
| f3185997 | 2315 | } |
| 0a1b45a2 | 2316 | return true; |
| a06ea964 NC |
2317 | } |
| 2318 | ||
| a06ea964 | 2319 | static reloc_howto_type * |
| cec5225b | 2320 | elfNN_aarch64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| a06ea964 NC |
2321 | bfd_reloc_code_real_type code) |
| 2322 | { | |
| a6bb11b2 | 2323 | reloc_howto_type *howto = elfNN_aarch64_howto_from_bfd_reloc (code); |
| a06ea964 | 2324 | |
| a6bb11b2 YZ |
2325 | if (howto != NULL) |
| 2326 | return howto; | |
| a06ea964 NC |
2327 | |
| 2328 | bfd_set_error (bfd_error_bad_value); | |
| 2329 | return NULL; | |
| 2330 | } | |
| 2331 | ||
| 2332 | static reloc_howto_type * | |
| cec5225b | 2333 | elfNN_aarch64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| a06ea964 NC |
2334 | const char *r_name) |
| 2335 | { | |
| 2336 | unsigned int i; | |
| 2337 | ||
| a6bb11b2 YZ |
2338 | for (i = 1; i < ARRAY_SIZE (elfNN_aarch64_howto_table) - 1; ++i) |
| 2339 | if (elfNN_aarch64_howto_table[i].name != NULL | |
| 2340 | && strcasecmp (elfNN_aarch64_howto_table[i].name, r_name) == 0) | |
| 2341 | return &elfNN_aarch64_howto_table[i]; | |
| a06ea964 NC |
2342 | |
| 2343 | return NULL; | |
| 2344 | } | |
| 2345 | ||
| 07d6d2b8 AM |
2346 | #define TARGET_LITTLE_SYM aarch64_elfNN_le_vec |
| 2347 | #define TARGET_LITTLE_NAME "elfNN-littleaarch64" | |
| 2348 | #define TARGET_BIG_SYM aarch64_elfNN_be_vec | |
| 2349 | #define TARGET_BIG_NAME "elfNN-bigaarch64" | |
| a06ea964 | 2350 | |
| a06ea964 NC |
2351 | /* The linker script knows the section names for placement. |
| 2352 | The entry_names are used to do simple name mangling on the stubs. | |
| 2353 | Given a function name, and its type, the stub can be found. The | |
| 2354 | name can be changed. The only requirement is the %s be present. */ | |
| 2355 | #define STUB_ENTRY_NAME "__%s_veneer" | |
| 2356 | ||
| 15b4f66b SN |
2357 | /* Stub name for a BTI landing stub. */ |
| 2358 | #define BTI_STUB_ENTRY_NAME "__%s_bti_veneer" | |
| 2359 | ||
| a06ea964 NC |
2360 | /* The name of the dynamic interpreter. This is put in the .interp |
| 2361 | section. */ | |
| 2362 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
| 2363 | ||
| 2364 | #define AARCH64_MAX_FWD_BRANCH_OFFSET \ | |
| 2365 | (((1 << 25) - 1) << 2) | |
| 2366 | #define AARCH64_MAX_BWD_BRANCH_OFFSET \ | |
| 2367 | (-((1 << 25) << 2)) | |
| 2368 | ||
| 2369 | #define AARCH64_MAX_ADRP_IMM ((1 << 20) - 1) | |
| 2370 | #define AARCH64_MIN_ADRP_IMM (-(1 << 20)) | |
| 2371 | ||
| 2372 | static int | |
| 2373 | aarch64_valid_for_adrp_p (bfd_vma value, bfd_vma place) | |
| 2374 | { | |
| 2375 | bfd_signed_vma offset = (bfd_signed_vma) (PG (value) - PG (place)) >> 12; | |
| 2376 | return offset <= AARCH64_MAX_ADRP_IMM && offset >= AARCH64_MIN_ADRP_IMM; | |
| 2377 | } | |
| 2378 | ||
| 2379 | static int | |
| 2380 | aarch64_valid_branch_p (bfd_vma value, bfd_vma place) | |
| 2381 | { | |
| 2382 | bfd_signed_vma offset = (bfd_signed_vma) (value - place); | |
| 2383 | return (offset <= AARCH64_MAX_FWD_BRANCH_OFFSET | |
| 2384 | && offset >= AARCH64_MAX_BWD_BRANCH_OFFSET); | |
| 2385 | } | |
| 2386 | ||
| 2387 | static const uint32_t aarch64_adrp_branch_stub [] = | |
| 2388 | { | |
| 2389 | 0x90000010, /* adrp ip0, X */ | |
| 2390 | /* R_AARCH64_ADR_HI21_PCREL(X) */ | |
| 2391 | 0x91000210, /* add ip0, ip0, :lo12:X */ | |
| 2392 | /* R_AARCH64_ADD_ABS_LO12_NC(X) */ | |
| 2393 | 0xd61f0200, /* br ip0 */ | |
| 2394 | }; | |
| 2395 | ||
| 2396 | static const uint32_t aarch64_long_branch_stub[] = | |
| 2397 | { | |
| cec5225b | 2398 | #if ARCH_SIZE == 64 |
| a06ea964 | 2399 | 0x58000090, /* ldr ip0, 1f */ |
| cec5225b YZ |
2400 | #else |
| 2401 | 0x18000090, /* ldr wip0, 1f */ | |
| 2402 | #endif | |
| a06ea964 NC |
2403 | 0x10000011, /* adr ip1, #0 */ |
| 2404 | 0x8b110210, /* add ip0, ip0, ip1 */ | |
| 2405 | 0xd61f0200, /* br ip0 */ | |
| cec5225b YZ |
2406 | 0x00000000, /* 1: .xword or .word |
| 2407 | R_AARCH64_PRELNN(X) + 12 | |
| a06ea964 NC |
2408 | */ |
| 2409 | 0x00000000, | |
| 2410 | }; | |
| 2411 | ||
| 15b4f66b SN |
2412 | static const uint32_t aarch64_bti_direct_branch_stub[] = |
| 2413 | { | |
| 2414 | 0xd503245f, /* bti c */ | |
| 2415 | 0x14000000, /* b <label> */ | |
| 2416 | }; | |
| 2417 | ||
| 68fcca92 JW |
2418 | static const uint32_t aarch64_erratum_835769_stub[] = |
| 2419 | { | |
| 2420 | 0x00000000, /* Placeholder for multiply accumulate. */ | |
| 2421 | 0x14000000, /* b <label> */ | |
| 2422 | }; | |
| 2423 | ||
| 4106101c MS |
2424 | static const uint32_t aarch64_erratum_843419_stub[] = |
| 2425 | { | |
| 2426 | 0x00000000, /* Placeholder for LDR instruction. */ | |
| 2427 | 0x14000000, /* b <label> */ | |
| 2428 | }; | |
| 2429 | ||
| a06ea964 NC |
2430 | /* Section name for stubs is the associated section name plus this |
| 2431 | string. */ | |
| 2432 | #define STUB_SUFFIX ".stub" | |
| 2433 | ||
| cec5225b | 2434 | enum elf_aarch64_stub_type |
| a06ea964 NC |
2435 | { |
| 2436 | aarch64_stub_none, | |
| 2437 | aarch64_stub_adrp_branch, | |
| 2438 | aarch64_stub_long_branch, | |
| 15b4f66b | 2439 | aarch64_stub_bti_direct_branch, |
| 68fcca92 | 2440 | aarch64_stub_erratum_835769_veneer, |
| 4106101c | 2441 | aarch64_stub_erratum_843419_veneer, |
| a06ea964 NC |
2442 | }; |
| 2443 | ||
| cec5225b | 2444 | struct elf_aarch64_stub_hash_entry |
| a06ea964 NC |
2445 | { |
| 2446 | /* Base hash table entry structure. */ | |
| 2447 | struct bfd_hash_entry root; | |
| 2448 | ||
| 2449 | /* The stub section. */ | |
| 2450 | asection *stub_sec; | |
| 2451 | ||
| 2452 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 2453 | bfd_vma stub_offset; | |
| 2454 | ||
| 2455 | /* Given the symbol's value and its section we can determine its final | |
| 2456 | value when building the stubs (so the stub knows where to jump). */ | |
| 2457 | bfd_vma target_value; | |
| 2458 | asection *target_section; | |
| 2459 | ||
| cec5225b | 2460 | enum elf_aarch64_stub_type stub_type; |
| a06ea964 NC |
2461 | |
| 2462 | /* The symbol table entry, if any, that this was derived from. */ | |
| cec5225b | 2463 | struct elf_aarch64_link_hash_entry *h; |
| a06ea964 NC |
2464 | |
| 2465 | /* Destination symbol type */ | |
| 2466 | unsigned char st_type; | |
| 2467 | ||
| 15b4f66b SN |
2468 | /* The target is also a stub. */ |
| 2469 | bool double_stub; | |
| 2470 | ||
| a06ea964 NC |
2471 | /* Where this stub is being called from, or, in the case of combined |
| 2472 | stub sections, the first input section in the group. */ | |
| 2473 | asection *id_sec; | |
| 2474 | ||
| 2475 | /* The name for the local symbol at the start of this stub. The | |
| 2476 | stub name in the hash table has to be unique; this does not, so | |
| 2477 | it can be friendlier. */ | |
| 2478 | char *output_name; | |
| 68fcca92 JW |
2479 | |
| 2480 | /* The instruction which caused this stub to be generated (only valid for | |
| 2481 | erratum 835769 workaround stubs at present). */ | |
| 2482 | uint32_t veneered_insn; | |
| 4106101c MS |
2483 | |
| 2484 | /* In an erratum 843419 workaround stub, the ADRP instruction offset. */ | |
| 2485 | bfd_vma adrp_offset; | |
| a06ea964 NC |
2486 | }; |
| 2487 | ||
| 2488 | /* Used to build a map of a section. This is required for mixed-endian | |
| 2489 | code/data. */ | |
| 2490 | ||
| cec5225b | 2491 | typedef struct elf_elf_section_map |
| a06ea964 NC |
2492 | { |
| 2493 | bfd_vma vma; | |
| 2494 | char type; | |
| 2495 | } | |
| cec5225b | 2496 | elf_aarch64_section_map; |
| a06ea964 NC |
2497 | |
| 2498 | ||
| 2499 | typedef struct _aarch64_elf_section_data | |
| 2500 | { | |
| 2501 | struct bfd_elf_section_data elf; | |
| 2502 | unsigned int mapcount; | |
| 2503 | unsigned int mapsize; | |
| cec5225b | 2504 | elf_aarch64_section_map *map; |
| a06ea964 NC |
2505 | } |
| 2506 | _aarch64_elf_section_data; | |
| 2507 | ||
| cec5225b | 2508 | #define elf_aarch64_section_data(sec) \ |
| a06ea964 NC |
2509 | ((_aarch64_elf_section_data *) elf_section_data (sec)) |
| 2510 | ||
| 4e8516b2 AP |
2511 | /* The size of the thread control block which is defined to be two pointers. */ |
| 2512 | #define TCB_SIZE (ARCH_SIZE/8)*2 | |
| a06ea964 NC |
2513 | |
| 2514 | struct elf_aarch64_local_symbol | |
| 2515 | { | |
| 2516 | unsigned int got_type; | |
| 2517 | bfd_signed_vma got_refcount; | |
| 2518 | bfd_vma got_offset; | |
| 2519 | ||
| 2520 | /* Offset of the GOTPLT entry reserved for the TLS descriptor. The | |
| 2521 | offset is from the end of the jump table and reserved entries | |
| 2522 | within the PLTGOT. | |
| 2523 | ||
| 2524 | The magic value (bfd_vma) -1 indicates that an offset has not be | |
| 2525 | allocated. */ | |
| 2526 | bfd_vma tlsdesc_got_jump_table_offset; | |
| 2527 | }; | |
| 2528 | ||
| 2529 | struct elf_aarch64_obj_tdata | |
| 2530 | { | |
| 2531 | struct elf_obj_tdata root; | |
| 2532 | ||
| 2533 | /* local symbol descriptors */ | |
| 2534 | struct elf_aarch64_local_symbol *locals; | |
| 2535 | ||
| 2536 | /* Zero to warn when linking objects with incompatible enum sizes. */ | |
| 2537 | int no_enum_size_warning; | |
| 2538 | ||
| 2539 | /* Zero to warn when linking objects with incompatible wchar_t sizes. */ | |
| 2540 | int no_wchar_size_warning; | |
| cd702818 SD |
2541 | |
| 2542 | /* All GNU_PROPERTY_AARCH64_FEATURE_1_AND properties. */ | |
| 2543 | uint32_t gnu_and_prop; | |
| 37c18eed SD |
2544 | |
| 2545 | /* Zero to warn when linking objects with incompatible | |
| 2546 | GNU_PROPERTY_AARCH64_FEATURE_1_BTI. */ | |
| 2547 | int no_bti_warn; | |
| 2548 | ||
| 2549 | /* PLT type based on security. */ | |
| 2550 | aarch64_plt_type plt_type; | |
| a06ea964 NC |
2551 | }; |
| 2552 | ||
| 2553 | #define elf_aarch64_tdata(bfd) \ | |
| 2554 | ((struct elf_aarch64_obj_tdata *) (bfd)->tdata.any) | |
| 2555 | ||
| cec5225b | 2556 | #define elf_aarch64_locals(bfd) (elf_aarch64_tdata (bfd)->locals) |
| a06ea964 NC |
2557 | |
| 2558 | #define is_aarch64_elf(bfd) \ | |
| 2559 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 2560 | && elf_tdata (bfd) != NULL \ | |
| 2561 | && elf_object_id (bfd) == AARCH64_ELF_DATA) | |
| 2562 | ||
| 0a1b45a2 | 2563 | static bool |
| cec5225b | 2564 | elfNN_aarch64_mkobject (bfd *abfd) |
| a06ea964 NC |
2565 | { |
| 2566 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_aarch64_obj_tdata), | |
| 2567 | AARCH64_ELF_DATA); | |
| 2568 | } | |
| 2569 | ||
| cec5225b YZ |
2570 | #define elf_aarch64_hash_entry(ent) \ |
| 2571 | ((struct elf_aarch64_link_hash_entry *)(ent)) | |
| a06ea964 NC |
2572 | |
| 2573 | #define GOT_UNKNOWN 0 | |
| 2574 | #define GOT_NORMAL 1 | |
| 2575 | #define GOT_TLS_GD 2 | |
| 2576 | #define GOT_TLS_IE 4 | |
| 2577 | #define GOT_TLSDESC_GD 8 | |
| 2578 | ||
| 2579 | #define GOT_TLS_GD_ANY_P(type) ((type & GOT_TLS_GD) || (type & GOT_TLSDESC_GD)) | |
| 2580 | ||
| 2581 | /* AArch64 ELF linker hash entry. */ | |
| cec5225b | 2582 | struct elf_aarch64_link_hash_entry |
| a06ea964 NC |
2583 | { |
| 2584 | struct elf_link_hash_entry root; | |
| 2585 | ||
| a06ea964 NC |
2586 | /* Since PLT entries have variable size, we need to record the |
| 2587 | index into .got.plt instead of recomputing it from the PLT | |
| 2588 | offset. */ | |
| 2589 | bfd_signed_vma plt_got_offset; | |
| 2590 | ||
| 2591 | /* Bit mask representing the type of GOT entry(s) if any required by | |
| 2592 | this symbol. */ | |
| 2593 | unsigned int got_type; | |
| 2594 | ||
| 90b7a5df FS |
2595 | /* TRUE if symbol is defined as a protected symbol. */ |
| 2596 | unsigned int def_protected : 1; | |
| 2597 | ||
| a06ea964 NC |
2598 | /* A pointer to the most recently used stub hash entry against this |
| 2599 | symbol. */ | |
| cec5225b | 2600 | struct elf_aarch64_stub_hash_entry *stub_cache; |
| a06ea964 NC |
2601 | |
| 2602 | /* Offset of the GOTPLT entry reserved for the TLS descriptor. The offset | |
| 2603 | is from the end of the jump table and reserved entries within the PLTGOT. | |
| 2604 | ||
| 2605 | The magic value (bfd_vma) -1 indicates that an offset has not | |
| 2606 | be allocated. */ | |
| 2607 | bfd_vma tlsdesc_got_jump_table_offset; | |
| 2608 | }; | |
| 2609 | ||
| 2610 | static unsigned int | |
| cec5225b | 2611 | elfNN_aarch64_symbol_got_type (struct elf_link_hash_entry *h, |
| a06ea964 NC |
2612 | bfd *abfd, |
| 2613 | unsigned long r_symndx) | |
| 2614 | { | |
| 2615 | if (h) | |
| cec5225b | 2616 | return elf_aarch64_hash_entry (h)->got_type; |
| a06ea964 | 2617 | |
| cec5225b | 2618 | if (! elf_aarch64_locals (abfd)) |
| a06ea964 NC |
2619 | return GOT_UNKNOWN; |
| 2620 | ||
| cec5225b | 2621 | return elf_aarch64_locals (abfd)[r_symndx].got_type; |
| a06ea964 NC |
2622 | } |
| 2623 | ||
| a06ea964 | 2624 | /* Get the AArch64 elf linker hash table from a link_info structure. */ |
| cec5225b YZ |
2625 | #define elf_aarch64_hash_table(info) \ |
| 2626 | ((struct elf_aarch64_link_hash_table *) ((info)->hash)) | |
| a06ea964 NC |
2627 | |
| 2628 | #define aarch64_stub_hash_lookup(table, string, create, copy) \ | |
| cec5225b | 2629 | ((struct elf_aarch64_stub_hash_entry *) \ |
| a06ea964 NC |
2630 | bfd_hash_lookup ((table), (string), (create), (copy))) |
| 2631 | ||
| 2632 | /* AArch64 ELF linker hash table. */ | |
| cec5225b | 2633 | struct elf_aarch64_link_hash_table |
| a06ea964 NC |
2634 | { |
| 2635 | /* The main hash table. */ | |
| 2636 | struct elf_link_hash_table root; | |
| 2637 | ||
| 2638 | /* Nonzero to force PIC branch veneers. */ | |
| 2639 | int pic_veneer; | |
| 2640 | ||
| 68fcca92 JW |
2641 | /* Fix erratum 835769. */ |
| 2642 | int fix_erratum_835769; | |
| 2643 | ||
| 4106101c | 2644 | /* Fix erratum 843419. */ |
| 739b5c9c | 2645 | erratum_84319_opts fix_erratum_843419; |
| 4106101c | 2646 | |
| 1f56df9d JW |
2647 | /* Don't apply link-time values for dynamic relocations. */ |
| 2648 | int no_apply_dynamic_relocs; | |
| 2649 | ||
| a06ea964 NC |
2650 | /* The number of bytes in the initial entry in the PLT. */ |
| 2651 | bfd_size_type plt_header_size; | |
| 2652 | ||
| 37c18eed SD |
2653 | /* The bytes of the initial PLT entry. */ |
| 2654 | const bfd_byte *plt0_entry; | |
| 2655 | ||
| 2656 | /* The number of bytes in the subsequent PLT entries. */ | |
| a06ea964 NC |
2657 | bfd_size_type plt_entry_size; |
| 2658 | ||
| 37c18eed SD |
2659 | /* The bytes of the subsequent PLT entry. */ |
| 2660 | const bfd_byte *plt_entry; | |
| 2661 | ||
| a06ea964 NC |
2662 | /* For convenience in allocate_dynrelocs. */ |
| 2663 | bfd *obfd; | |
| 2664 | ||
| 2665 | /* The amount of space used by the reserved portion of the sgotplt | |
| 2666 | section, plus whatever space is used by the jump slots. */ | |
| 2667 | bfd_vma sgotplt_jump_table_size; | |
| 2668 | ||
| 2669 | /* The stub hash table. */ | |
| 2670 | struct bfd_hash_table stub_hash_table; | |
| 2671 | ||
| 2672 | /* Linker stub bfd. */ | |
| 2673 | bfd *stub_bfd; | |
| 2674 | ||
| 2675 | /* Linker call-backs. */ | |
| 2676 | asection *(*add_stub_section) (const char *, asection *); | |
| 2677 | void (*layout_sections_again) (void); | |
| 2678 | ||
| 2679 | /* Array to keep track of which stub sections have been created, and | |
| 2680 | information on stub grouping. */ | |
| 2681 | struct map_stub | |
| 2682 | { | |
| 2683 | /* This is the section to which stubs in the group will be | |
| 2684 | attached. */ | |
| 2685 | asection *link_sec; | |
| 2686 | /* The stub section. */ | |
| 2687 | asection *stub_sec; | |
| 2688 | } *stub_group; | |
| 2689 | ||
| cec5225b | 2690 | /* Assorted information used by elfNN_aarch64_size_stubs. */ |
| a06ea964 | 2691 | unsigned int bfd_count; |
| 7292b3ac | 2692 | unsigned int top_index; |
| a06ea964 NC |
2693 | asection **input_list; |
| 2694 | ||
| 15b4f66b SN |
2695 | /* True when two stubs are added where one targets the other, happens |
| 2696 | when BTI stubs are inserted and then the stub layout must not change | |
| 2697 | during elfNN_aarch64_build_stubs. */ | |
| 2698 | bool has_double_stub; | |
| 2699 | ||
| 823710d5 SN |
2700 | /* JUMP_SLOT relocs for variant PCS symbols may be present. */ |
| 2701 | int variant_pcs; | |
| 2702 | ||
| 37c18eed SD |
2703 | /* The number of bytes in the PLT enty for the TLS descriptor. */ |
| 2704 | bfd_size_type tlsdesc_plt_entry_size; | |
| 2705 | ||
| 1419bbe5 WN |
2706 | /* Used by local STT_GNU_IFUNC symbols. */ |
| 2707 | htab_t loc_hash_table; | |
| 2708 | void * loc_hash_memory; | |
| a06ea964 NC |
2709 | }; |
| 2710 | ||
| a06ea964 NC |
2711 | /* Create an entry in an AArch64 ELF linker hash table. */ |
| 2712 | ||
| 2713 | static struct bfd_hash_entry * | |
| cec5225b | 2714 | elfNN_aarch64_link_hash_newfunc (struct bfd_hash_entry *entry, |
| a06ea964 NC |
2715 | struct bfd_hash_table *table, |
| 2716 | const char *string) | |
| 2717 | { | |
| cec5225b YZ |
2718 | struct elf_aarch64_link_hash_entry *ret = |
| 2719 | (struct elf_aarch64_link_hash_entry *) entry; | |
| a06ea964 NC |
2720 | |
| 2721 | /* Allocate the structure if it has not already been allocated by a | |
| 2722 | subclass. */ | |
| 2723 | if (ret == NULL) | |
| 2724 | ret = bfd_hash_allocate (table, | |
| cec5225b | 2725 | sizeof (struct elf_aarch64_link_hash_entry)); |
| a06ea964 NC |
2726 | if (ret == NULL) |
| 2727 | return (struct bfd_hash_entry *) ret; | |
| 2728 | ||
| 2729 | /* Call the allocation method of the superclass. */ | |
| cec5225b | 2730 | ret = ((struct elf_aarch64_link_hash_entry *) |
| a06ea964 NC |
2731 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
| 2732 | table, string)); | |
| 2733 | if (ret != NULL) | |
| 2734 | { | |
| a06ea964 | 2735 | ret->got_type = GOT_UNKNOWN; |
| 7c24bdc5 | 2736 | ret->def_protected = 0; |
| a06ea964 NC |
2737 | ret->plt_got_offset = (bfd_vma) - 1; |
| 2738 | ret->stub_cache = NULL; | |
| 2739 | ret->tlsdesc_got_jump_table_offset = (bfd_vma) - 1; | |
| 2740 | } | |
| 2741 | ||
| 2742 | return (struct bfd_hash_entry *) ret; | |
| 2743 | } | |
| 2744 | ||
| 2745 | /* Initialize an entry in the stub hash table. */ | |
| 2746 | ||
| 2747 | static struct bfd_hash_entry * | |
| 2748 | stub_hash_newfunc (struct bfd_hash_entry *entry, | |
| 2749 | struct bfd_hash_table *table, const char *string) | |
| 2750 | { | |
| 2751 | /* Allocate the structure if it has not already been allocated by a | |
| 2752 | subclass. */ | |
| 2753 | if (entry == NULL) | |
| 2754 | { | |
| 2755 | entry = bfd_hash_allocate (table, | |
| 2756 | sizeof (struct | |
| cec5225b | 2757 | elf_aarch64_stub_hash_entry)); |
| a06ea964 NC |
2758 | if (entry == NULL) |
| 2759 | return entry; | |
| 2760 | } | |
| 2761 | ||
| 2762 | /* Call the allocation method of the superclass. */ | |
| 2763 | entry = bfd_hash_newfunc (entry, table, string); | |
| 2764 | if (entry != NULL) | |
| 2765 | { | |
| cec5225b | 2766 | struct elf_aarch64_stub_hash_entry *eh; |
| a06ea964 NC |
2767 | |
| 2768 | /* Initialize the local fields. */ | |
| cec5225b | 2769 | eh = (struct elf_aarch64_stub_hash_entry *) entry; |
| d75137c7 AM |
2770 | memset (&eh->stub_sec, 0, |
| 2771 | (sizeof (struct elf_aarch64_stub_hash_entry) | |
| 2772 | - offsetof (struct elf_aarch64_stub_hash_entry, stub_sec))); | |
| a06ea964 NC |
2773 | } |
| 2774 | ||
| 2775 | return entry; | |
| 2776 | } | |
| 2777 | ||
| 1419bbe5 WN |
2778 | /* Compute a hash of a local hash entry. We use elf_link_hash_entry |
| 2779 | for local symbol so that we can handle local STT_GNU_IFUNC symbols | |
| 2780 | as global symbol. We reuse indx and dynstr_index for local symbol | |
| 2781 | hash since they aren't used by global symbols in this backend. */ | |
| 2782 | ||
| 2783 | static hashval_t | |
| 2784 | elfNN_aarch64_local_htab_hash (const void *ptr) | |
| 2785 | { | |
| 2786 | struct elf_link_hash_entry *h | |
| 2787 | = (struct elf_link_hash_entry *) ptr; | |
| 2788 | return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index); | |
| 2789 | } | |
| 2790 | ||
| 2791 | /* Compare local hash entries. */ | |
| 2792 | ||
| 2793 | static int | |
| 2794 | elfNN_aarch64_local_htab_eq (const void *ptr1, const void *ptr2) | |
| 2795 | { | |
| 2796 | struct elf_link_hash_entry *h1 | |
| 2797 | = (struct elf_link_hash_entry *) ptr1; | |
| 2798 | struct elf_link_hash_entry *h2 | |
| 2799 | = (struct elf_link_hash_entry *) ptr2; | |
| 2800 | ||
| 2801 | return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index; | |
| 2802 | } | |
| 2803 | ||
| 2804 | /* Find and/or create a hash entry for local symbol. */ | |
| 2805 | ||
| 2806 | static struct elf_link_hash_entry * | |
| 2807 | elfNN_aarch64_get_local_sym_hash (struct elf_aarch64_link_hash_table *htab, | |
| 2808 | bfd *abfd, const Elf_Internal_Rela *rel, | |
| 0a1b45a2 | 2809 | bool create) |
| 1419bbe5 WN |
2810 | { |
| 2811 | struct elf_aarch64_link_hash_entry e, *ret; | |
| 2812 | asection *sec = abfd->sections; | |
| 2813 | hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id, | |
| 2814 | ELFNN_R_SYM (rel->r_info)); | |
| 2815 | void **slot; | |
| 2816 | ||
| 2817 | e.root.indx = sec->id; | |
| 2818 | e.root.dynstr_index = ELFNN_R_SYM (rel->r_info); | |
| 2819 | slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h, | |
| 2820 | create ? INSERT : NO_INSERT); | |
| 2821 | ||
| 2822 | if (!slot) | |
| 2823 | return NULL; | |
| 2824 | ||
| 2825 | if (*slot) | |
| 2826 | { | |
| 2827 | ret = (struct elf_aarch64_link_hash_entry *) *slot; | |
| 2828 | return &ret->root; | |
| 2829 | } | |
| 2830 | ||
| 2831 | ret = (struct elf_aarch64_link_hash_entry *) | |
| 2832 | objalloc_alloc ((struct objalloc *) htab->loc_hash_memory, | |
| 2833 | sizeof (struct elf_aarch64_link_hash_entry)); | |
| 2834 | if (ret) | |
| 2835 | { | |
| 2836 | memset (ret, 0, sizeof (*ret)); | |
| 2837 | ret->root.indx = sec->id; | |
| 2838 | ret->root.dynstr_index = ELFNN_R_SYM (rel->r_info); | |
| 2839 | ret->root.dynindx = -1; | |
| 2840 | *slot = ret; | |
| 2841 | } | |
| 2842 | return &ret->root; | |
| 2843 | } | |
| a06ea964 NC |
2844 | |
| 2845 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
| 2846 | ||
| 2847 | static void | |
| cec5225b | 2848 | elfNN_aarch64_copy_indirect_symbol (struct bfd_link_info *info, |
| a06ea964 NC |
2849 | struct elf_link_hash_entry *dir, |
| 2850 | struct elf_link_hash_entry *ind) | |
| 2851 | { | |
| cec5225b | 2852 | struct elf_aarch64_link_hash_entry *edir, *eind; |
| a06ea964 | 2853 | |
| cec5225b YZ |
2854 | edir = (struct elf_aarch64_link_hash_entry *) dir; |
| 2855 | eind = (struct elf_aarch64_link_hash_entry *) ind; | |
| a06ea964 | 2856 | |
| a06ea964 NC |
2857 | if (ind->root.type == bfd_link_hash_indirect) |
| 2858 | { | |
| 2859 | /* Copy over PLT info. */ | |
| 2860 | if (dir->got.refcount <= 0) | |
| 2861 | { | |
| 2862 | edir->got_type = eind->got_type; | |
| 2863 | eind->got_type = GOT_UNKNOWN; | |
| 2864 | } | |
| 2865 | } | |
| 2866 | ||
| 2867 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
| 2868 | } | |
| 2869 | ||
| 823710d5 SN |
2870 | /* Merge non-visibility st_other attributes. */ |
| 2871 | ||
| 2872 | static void | |
| 2873 | elfNN_aarch64_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 5160d0f3 | 2874 | unsigned int st_other, |
| 90b7a5df | 2875 | bool definition, |
| 0a1b45a2 | 2876 | bool dynamic ATTRIBUTE_UNUSED) |
| 823710d5 | 2877 | { |
| 90b7a5df FS |
2878 | if (definition) |
| 2879 | { | |
| 2880 | struct elf_aarch64_link_hash_entry *eh | |
| 2881 | = (struct elf_aarch64_link_hash_entry *)h; | |
| 2882 | eh->def_protected = ELF_ST_VISIBILITY (st_other) == STV_PROTECTED; | |
| 2883 | } | |
| 2884 | ||
| 5160d0f3 | 2885 | unsigned int isym_sto = st_other & ~ELF_ST_VISIBILITY (-1); |
| 823710d5 SN |
2886 | unsigned int h_sto = h->other & ~ELF_ST_VISIBILITY (-1); |
| 2887 | ||
| 2888 | if (isym_sto == h_sto) | |
| 2889 | return; | |
| 2890 | ||
| 2891 | if (isym_sto & ~STO_AARCH64_VARIANT_PCS) | |
| 2892 | /* Not fatal, this callback cannot fail. */ | |
| 2893 | _bfd_error_handler (_("unknown attribute for symbol `%s': 0x%02x"), | |
| 2894 | h->root.root.string, isym_sto); | |
| 2895 | ||
| 2896 | /* Note: Ideally we would warn about any attribute mismatch, but | |
| 2897 | this api does not allow that without substantial changes. */ | |
| 2898 | if (isym_sto & STO_AARCH64_VARIANT_PCS) | |
| 2899 | h->other |= STO_AARCH64_VARIANT_PCS; | |
| 2900 | } | |
| 2901 | ||
| 68faa637 AM |
2902 | /* Destroy an AArch64 elf linker hash table. */ |
| 2903 | ||
| 2904 | static void | |
| d495ab0d | 2905 | elfNN_aarch64_link_hash_table_free (bfd *obfd) |
| 68faa637 AM |
2906 | { |
| 2907 | struct elf_aarch64_link_hash_table *ret | |
| d495ab0d | 2908 | = (struct elf_aarch64_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
2909 | |
| 2910 | if (ret->loc_hash_table) | |
| 2911 | htab_delete (ret->loc_hash_table); | |
| 2912 | if (ret->loc_hash_memory) | |
| 2913 | objalloc_free ((struct objalloc *) ret->loc_hash_memory); | |
| 2914 | ||
| 2915 | bfd_hash_table_free (&ret->stub_hash_table); | |
| d495ab0d | 2916 | _bfd_elf_link_hash_table_free (obfd); |
| 68faa637 AM |
2917 | } |
| 2918 | ||
| a06ea964 NC |
2919 | /* Create an AArch64 elf linker hash table. */ |
| 2920 | ||
| 2921 | static struct bfd_link_hash_table * | |
| cec5225b | 2922 | elfNN_aarch64_link_hash_table_create (bfd *abfd) |
| a06ea964 | 2923 | { |
| cec5225b | 2924 | struct elf_aarch64_link_hash_table *ret; |
| 986f0783 | 2925 | size_t amt = sizeof (struct elf_aarch64_link_hash_table); |
| a06ea964 | 2926 | |
| 7bf52ea2 | 2927 | ret = bfd_zmalloc (amt); |
| a06ea964 NC |
2928 | if (ret == NULL) |
| 2929 | return NULL; | |
| 2930 | ||
| 2931 | if (!_bfd_elf_link_hash_table_init | |
| cec5225b YZ |
2932 | (&ret->root, abfd, elfNN_aarch64_link_hash_newfunc, |
| 2933 | sizeof (struct elf_aarch64_link_hash_entry), AARCH64_ELF_DATA)) | |
| a06ea964 NC |
2934 | { |
| 2935 | free (ret); | |
| 2936 | return NULL; | |
| 2937 | } | |
| 2938 | ||
| a06ea964 | 2939 | ret->plt_header_size = PLT_ENTRY_SIZE; |
| 37c18eed | 2940 | ret->plt0_entry = elfNN_aarch64_small_plt0_entry; |
| a06ea964 | 2941 | ret->plt_entry_size = PLT_SMALL_ENTRY_SIZE; |
| 37c18eed SD |
2942 | ret->plt_entry = elfNN_aarch64_small_plt_entry; |
| 2943 | ret->tlsdesc_plt_entry_size = PLT_TLSDESC_ENTRY_SIZE; | |
| a06ea964 | 2944 | ret->obfd = abfd; |
| 9bcc30e4 | 2945 | ret->root.tlsdesc_got = (bfd_vma) - 1; |
| a06ea964 NC |
2946 | |
| 2947 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc, | |
| cec5225b | 2948 | sizeof (struct elf_aarch64_stub_hash_entry))) |
| a06ea964 | 2949 | { |
| d495ab0d | 2950 | _bfd_elf_link_hash_table_free (abfd); |
| a06ea964 NC |
2951 | return NULL; |
| 2952 | } | |
| 2953 | ||
| 1419bbe5 WN |
2954 | ret->loc_hash_table = htab_try_create (1024, |
| 2955 | elfNN_aarch64_local_htab_hash, | |
| 2956 | elfNN_aarch64_local_htab_eq, | |
| 2957 | NULL); | |
| 2958 | ret->loc_hash_memory = objalloc_create (); | |
| 2959 | if (!ret->loc_hash_table || !ret->loc_hash_memory) | |
| 2960 | { | |
| d495ab0d | 2961 | elfNN_aarch64_link_hash_table_free (abfd); |
| 1419bbe5 WN |
2962 | return NULL; |
| 2963 | } | |
| d495ab0d | 2964 | ret->root.root.hash_table_free = elfNN_aarch64_link_hash_table_free; |
| 1419bbe5 | 2965 | |
| a06ea964 NC |
2966 | return &ret->root.root; |
| 2967 | } | |
| 2968 | ||
| 1d75a8e2 NC |
2969 | /* Perform relocation R_TYPE. Returns TRUE upon success, FALSE otherwise. */ |
| 2970 | ||
| 0a1b45a2 | 2971 | static bool |
| a06ea964 NC |
2972 | aarch64_relocate (unsigned int r_type, bfd *input_bfd, asection *input_section, |
| 2973 | bfd_vma offset, bfd_vma value) | |
| 2974 | { | |
| 2975 | reloc_howto_type *howto; | |
| 2976 | bfd_vma place; | |
| 2977 | ||
| 0aa13fee | 2978 | howto = elfNN_aarch64_howto_from_type (input_bfd, r_type); |
| a06ea964 NC |
2979 | place = (input_section->output_section->vma + input_section->output_offset |
| 2980 | + offset); | |
| caed7120 | 2981 | |
| 0aa13fee | 2982 | r_type = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| 652afeef | 2983 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, r_type, place, |
| 0a1b45a2 | 2984 | value, 0, false); |
| caed7120 YZ |
2985 | return _bfd_aarch64_elf_put_addend (input_bfd, |
| 2986 | input_section->contents + offset, r_type, | |
| 1d75a8e2 | 2987 | howto, value) == bfd_reloc_ok; |
| a06ea964 NC |
2988 | } |
| 2989 | ||
| a06ea964 NC |
2990 | /* Determine the type of stub needed, if any, for a call. */ |
| 2991 | ||
| cec5225b | 2992 | static enum elf_aarch64_stub_type |
| 9a228467 | 2993 | aarch64_type_of_stub (asection *input_sec, |
| a06ea964 | 2994 | const Elf_Internal_Rela *rel, |
| f678ded7 | 2995 | asection *sym_sec, |
| a06ea964 | 2996 | unsigned char st_type, |
| a06ea964 NC |
2997 | bfd_vma destination) |
| 2998 | { | |
| 2999 | bfd_vma location; | |
| 3000 | bfd_signed_vma branch_offset; | |
| 3001 | unsigned int r_type; | |
| cec5225b | 3002 | enum elf_aarch64_stub_type stub_type = aarch64_stub_none; |
| a06ea964 | 3003 | |
| f678ded7 | 3004 | if (st_type != STT_FUNC |
| 2f340668 | 3005 | && (sym_sec == input_sec)) |
| a06ea964 NC |
3006 | return stub_type; |
| 3007 | ||
| a06ea964 NC |
3008 | /* Determine where the call point is. */ |
| 3009 | location = (input_sec->output_offset | |
| 3010 | + input_sec->output_section->vma + rel->r_offset); | |
| 3011 | ||
| 3012 | branch_offset = (bfd_signed_vma) (destination - location); | |
| 3013 | ||
| cec5225b | 3014 | r_type = ELFNN_R_TYPE (rel->r_info); |
| a06ea964 NC |
3015 | |
| 3016 | /* We don't want to redirect any old unconditional jump in this way, | |
| 3017 | only one which is being used for a sibcall, where it is | |
| 3018 | acceptable for the IP0 and IP1 registers to be clobbered. */ | |
| a6bb11b2 | 3019 | if ((r_type == AARCH64_R (CALL26) || r_type == AARCH64_R (JUMP26)) |
| a06ea964 NC |
3020 | && (branch_offset > AARCH64_MAX_FWD_BRANCH_OFFSET |
| 3021 | || branch_offset < AARCH64_MAX_BWD_BRANCH_OFFSET)) | |
| 3022 | { | |
| 3023 | stub_type = aarch64_stub_long_branch; | |
| 3024 | } | |
| 3025 | ||
| 3026 | return stub_type; | |
| 3027 | } | |
| 3028 | ||
| 3029 | /* Build a name for an entry in the stub hash table. */ | |
| 3030 | ||
| 3031 | static char * | |
| cec5225b | 3032 | elfNN_aarch64_stub_name (const asection *input_section, |
| a06ea964 | 3033 | const asection *sym_sec, |
| cec5225b | 3034 | const struct elf_aarch64_link_hash_entry *hash, |
| a06ea964 NC |
3035 | const Elf_Internal_Rela *rel) |
| 3036 | { | |
| 3037 | char *stub_name; | |
| 3038 | bfd_size_type len; | |
| 3039 | ||
| 3040 | if (hash) | |
| 3041 | { | |
| 3042 | len = 8 + 1 + strlen (hash->root.root.root.string) + 1 + 16 + 1; | |
| 3043 | stub_name = bfd_malloc (len); | |
| 3044 | if (stub_name != NULL) | |
| b8281767 | 3045 | snprintf (stub_name, len, "%08x_%s+%" PRIx64, |
| a06ea964 NC |
3046 | (unsigned int) input_section->id, |
| 3047 | hash->root.root.root.string, | |
| b8281767 | 3048 | (uint64_t) rel->r_addend); |
| a06ea964 NC |
3049 | } |
| 3050 | else | |
| 3051 | { | |
| 3052 | len = 8 + 1 + 8 + 1 + 8 + 1 + 16 + 1; | |
| 3053 | stub_name = bfd_malloc (len); | |
| 3054 | if (stub_name != NULL) | |
| b8281767 | 3055 | snprintf (stub_name, len, "%08x_%x:%x+%" PRIx64, |
| a06ea964 NC |
3056 | (unsigned int) input_section->id, |
| 3057 | (unsigned int) sym_sec->id, | |
| cec5225b | 3058 | (unsigned int) ELFNN_R_SYM (rel->r_info), |
| b8281767 | 3059 | (uint64_t) rel->r_addend); |
| a06ea964 NC |
3060 | } |
| 3061 | ||
| 3062 | return stub_name; | |
| 3063 | } | |
| 3064 | ||
| 7f784814 JW |
3065 | /* Return TRUE if symbol H should be hashed in the `.gnu.hash' section. For |
| 3066 | executable PLT slots where the executable never takes the address of those | |
| 3067 | functions, the function symbols are not added to the hash table. */ | |
| 3068 | ||
| 0a1b45a2 | 3069 | static bool |
| 7f784814 JW |
3070 | elf_aarch64_hash_symbol (struct elf_link_hash_entry *h) |
| 3071 | { | |
| 3072 | if (h->plt.offset != (bfd_vma) -1 | |
| 3073 | && !h->def_regular | |
| 3074 | && !h->pointer_equality_needed) | |
| 0a1b45a2 | 3075 | return false; |
| 7f784814 JW |
3076 | |
| 3077 | return _bfd_elf_hash_symbol (h); | |
| 3078 | } | |
| 3079 | ||
| 3080 | ||
| a06ea964 NC |
3081 | /* Look up an entry in the stub hash. Stub entries are cached because |
| 3082 | creating the stub name takes a bit of time. */ | |
| 3083 | ||
| cec5225b YZ |
3084 | static struct elf_aarch64_stub_hash_entry * |
| 3085 | elfNN_aarch64_get_stub_entry (const asection *input_section, | |
| a06ea964 NC |
3086 | const asection *sym_sec, |
| 3087 | struct elf_link_hash_entry *hash, | |
| 3088 | const Elf_Internal_Rela *rel, | |
| cec5225b | 3089 | struct elf_aarch64_link_hash_table *htab) |
| a06ea964 | 3090 | { |
| cec5225b YZ |
3091 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| 3092 | struct elf_aarch64_link_hash_entry *h = | |
| 3093 | (struct elf_aarch64_link_hash_entry *) hash; | |
| a06ea964 NC |
3094 | const asection *id_sec; |
| 3095 | ||
| 3096 | if ((input_section->flags & SEC_CODE) == 0) | |
| 3097 | return NULL; | |
| 3098 | ||
| 3099 | /* If this input section is part of a group of sections sharing one | |
| 3100 | stub section, then use the id of the first section in the group. | |
| 3101 | Stub names need to include a section id, as there may well be | |
| 3102 | more than one stub used to reach say, printf, and we need to | |
| 3103 | distinguish between them. */ | |
| 3104 | id_sec = htab->stub_group[input_section->id].link_sec; | |
| 3105 | ||
| 3106 | if (h != NULL && h->stub_cache != NULL | |
| 3107 | && h->stub_cache->h == h && h->stub_cache->id_sec == id_sec) | |
| 3108 | { | |
| 3109 | stub_entry = h->stub_cache; | |
| 3110 | } | |
| 3111 | else | |
| 3112 | { | |
| 3113 | char *stub_name; | |
| 3114 | ||
| cec5225b | 3115 | stub_name = elfNN_aarch64_stub_name (id_sec, sym_sec, h, rel); |
| a06ea964 NC |
3116 | if (stub_name == NULL) |
| 3117 | return NULL; | |
| 3118 | ||
| 3119 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, | |
| 0a1b45a2 | 3120 | stub_name, false, false); |
| a06ea964 NC |
3121 | if (h != NULL) |
| 3122 | h->stub_cache = stub_entry; | |
| 3123 | ||
| 3124 | free (stub_name); | |
| 3125 | } | |
| 3126 | ||
| 3127 | return stub_entry; | |
| 3128 | } | |
| 3129 | ||
| a06ea964 | 3130 | |
| 66585675 MS |
3131 | /* Create a stub section. */ |
| 3132 | ||
| 3133 | static asection * | |
| 3134 | _bfd_aarch64_create_stub_section (asection *section, | |
| 3135 | struct elf_aarch64_link_hash_table *htab) | |
| 3136 | { | |
| 3137 | size_t namelen; | |
| 3138 | bfd_size_type len; | |
| 3139 | char *s_name; | |
| 3140 | ||
| 3141 | namelen = strlen (section->name); | |
| 3142 | len = namelen + sizeof (STUB_SUFFIX); | |
| 3143 | s_name = bfd_alloc (htab->stub_bfd, len); | |
| 3144 | if (s_name == NULL) | |
| 3145 | return NULL; | |
| 3146 | ||
| 3147 | memcpy (s_name, section->name, namelen); | |
| 3148 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 3149 | return (*htab->add_stub_section) (s_name, section); | |
| 3150 | } | |
| 3151 | ||
| 3152 | ||
| fc6d53be MS |
3153 | /* Find or create a stub section for a link section. |
| 3154 | ||
| 3155 | Fix or create the stub section used to collect stubs attached to | |
| 3156 | the specified link section. */ | |
| 3157 | ||
| 3158 | static asection * | |
| 3159 | _bfd_aarch64_get_stub_for_link_section (asection *link_section, | |
| 3160 | struct elf_aarch64_link_hash_table *htab) | |
| 3161 | { | |
| 3162 | if (htab->stub_group[link_section->id].stub_sec == NULL) | |
| 3163 | htab->stub_group[link_section->id].stub_sec | |
| 3164 | = _bfd_aarch64_create_stub_section (link_section, htab); | |
| 3165 | return htab->stub_group[link_section->id].stub_sec; | |
| 3166 | } | |
| 3167 | ||
| 3168 | ||
| ef857521 MS |
3169 | /* Find or create a stub section in the stub group for an input |
| 3170 | section. */ | |
| 3171 | ||
| 3172 | static asection * | |
| 3173 | _bfd_aarch64_create_or_find_stub_sec (asection *section, | |
| 3174 | struct elf_aarch64_link_hash_table *htab) | |
| a06ea964 | 3175 | { |
| fc6d53be MS |
3176 | asection *link_sec = htab->stub_group[section->id].link_sec; |
| 3177 | return _bfd_aarch64_get_stub_for_link_section (link_sec, htab); | |
| ef857521 MS |
3178 | } |
| 3179 | ||
| 3180 | ||
| 3181 | /* Add a new stub entry in the stub group associated with an input | |
| 3182 | section to the stub hash. Not all fields of the new stub entry are | |
| 3183 | initialised. */ | |
| 3184 | ||
| 3185 | static struct elf_aarch64_stub_hash_entry * | |
| 3186 | _bfd_aarch64_add_stub_entry_in_group (const char *stub_name, | |
| 3187 | asection *section, | |
| 3188 | struct elf_aarch64_link_hash_table *htab) | |
| 3189 | { | |
| 3190 | asection *link_sec; | |
| 3191 | asection *stub_sec; | |
| 3192 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 3193 | ||
| 3194 | link_sec = htab->stub_group[section->id].link_sec; | |
| 3195 | stub_sec = _bfd_aarch64_create_or_find_stub_sec (section, htab); | |
| 3196 | ||
| a06ea964 NC |
3197 | /* Enter this entry into the linker stub hash table. */ |
| 3198 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| 0a1b45a2 | 3199 | true, false); |
| a06ea964 NC |
3200 | if (stub_entry == NULL) |
| 3201 | { | |
| 695344c0 | 3202 | /* xgettext:c-format */ |
| 871b3ab2 | 3203 | _bfd_error_handler (_("%pB: cannot create stub entry %s"), |
| 4eca0228 | 3204 | section->owner, stub_name); |
| a06ea964 NC |
3205 | return NULL; |
| 3206 | } | |
| 3207 | ||
| 3208 | stub_entry->stub_sec = stub_sec; | |
| 3209 | stub_entry->stub_offset = 0; | |
| 3210 | stub_entry->id_sec = link_sec; | |
| 3211 | ||
| 3212 | return stub_entry; | |
| 3213 | } | |
| 3214 | ||
| 4106101c MS |
3215 | /* Add a new stub entry in the final stub section to the stub hash. |
| 3216 | Not all fields of the new stub entry are initialised. */ | |
| 3217 | ||
| 3218 | static struct elf_aarch64_stub_hash_entry * | |
| 3219 | _bfd_aarch64_add_stub_entry_after (const char *stub_name, | |
| 3220 | asection *link_section, | |
| 3221 | struct elf_aarch64_link_hash_table *htab) | |
| 3222 | { | |
| 3223 | asection *stub_sec; | |
| 3224 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 3225 | ||
| 739b5c9c TC |
3226 | stub_sec = NULL; |
| 3227 | /* Only create the actual stub if we will end up needing it. */ | |
| 3228 | if (htab->fix_erratum_843419 & ERRAT_ADRP) | |
| 3229 | stub_sec = _bfd_aarch64_get_stub_for_link_section (link_section, htab); | |
| 4106101c | 3230 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
| 0a1b45a2 | 3231 | true, false); |
| 4106101c MS |
3232 | if (stub_entry == NULL) |
| 3233 | { | |
| 4eca0228 | 3234 | _bfd_error_handler (_("cannot create stub entry %s"), stub_name); |
| 4106101c MS |
3235 | return NULL; |
| 3236 | } | |
| 3237 | ||
| 3238 | stub_entry->stub_sec = stub_sec; | |
| 3239 | stub_entry->stub_offset = 0; | |
| 3240 | stub_entry->id_sec = link_section; | |
| 3241 | ||
| 3242 | return stub_entry; | |
| 3243 | } | |
| 3244 | ||
| 3245 | ||
| 0a1b45a2 | 3246 | static bool |
| a06ea964 | 3247 | aarch64_build_one_stub (struct bfd_hash_entry *gen_entry, |
| abf874aa | 3248 | void *in_arg) |
| a06ea964 | 3249 | { |
| cec5225b | 3250 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| a06ea964 NC |
3251 | asection *stub_sec; |
| 3252 | bfd *stub_bfd; | |
| 3253 | bfd_byte *loc; | |
| 3254 | bfd_vma sym_value; | |
| 68fcca92 JW |
3255 | bfd_vma veneered_insn_loc; |
| 3256 | bfd_vma veneer_entry_loc; | |
| 3257 | bfd_signed_vma branch_offset = 0; | |
| a06ea964 | 3258 | unsigned int template_size; |
| 15b4f66b | 3259 | unsigned int pad_size = 0; |
| a06ea964 NC |
3260 | const uint32_t *template; |
| 3261 | unsigned int i; | |
| abf874aa | 3262 | struct bfd_link_info *info; |
| 15b4f66b | 3263 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 NC |
3264 | |
| 3265 | /* Massage our args to the form they really have. */ | |
| cec5225b | 3266 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; |
| a06ea964 | 3267 | |
| abf874aa | 3268 | info = (struct bfd_link_info *) in_arg; |
| 15b4f66b | 3269 | htab = elf_aarch64_hash_table (info); |
| abf874aa CL |
3270 | |
| 3271 | /* Fail if the target section could not be assigned to an output | |
| 3272 | section. The user should fix his linker script. */ | |
| 3273 | if (stub_entry->target_section->output_section == NULL | |
| 3274 | && info->non_contiguous_regions) | |
| c63d4862 | 3275 | info->callbacks->einfo (_("%F%P: Could not assign `%pA' to an output section. " |
| 53215f21 CL |
3276 | "Retry without " |
| 3277 | "--enable-non-contiguous-regions.\n"), | |
| 3278 | stub_entry->target_section); | |
| abf874aa | 3279 | |
| a06ea964 NC |
3280 | stub_sec = stub_entry->stub_sec; |
| 3281 | ||
| 15b4f66b SN |
3282 | /* The layout must not change when a stub may be the target of another. */ |
| 3283 | if (htab->has_double_stub) | |
| 3284 | BFD_ASSERT (stub_entry->stub_offset == stub_sec->size); | |
| 3285 | ||
| a06ea964 NC |
3286 | /* Make a note of the offset within the stubs for this entry. */ |
| 3287 | stub_entry->stub_offset = stub_sec->size; | |
| 3288 | loc = stub_sec->contents + stub_entry->stub_offset; | |
| 3289 | ||
| 3290 | stub_bfd = stub_sec->owner; | |
| 3291 | ||
| 3292 | /* This is the address of the stub destination. */ | |
| 3293 | sym_value = (stub_entry->target_value | |
| 3294 | + stub_entry->target_section->output_offset | |
| 3295 | + stub_entry->target_section->output_section->vma); | |
| 3296 | ||
| 3297 | if (stub_entry->stub_type == aarch64_stub_long_branch) | |
| 3298 | { | |
| 3299 | bfd_vma place = (stub_entry->stub_offset + stub_sec->output_section->vma | |
| 3300 | + stub_sec->output_offset); | |
| 3301 | ||
| 3302 | /* See if we can relax the stub. */ | |
| 3303 | if (aarch64_valid_for_adrp_p (sym_value, place)) | |
| 15b4f66b SN |
3304 | { |
| 3305 | stub_entry->stub_type = aarch64_stub_adrp_branch; | |
| 3306 | ||
| 3307 | /* Avoid the relaxation changing the layout. */ | |
| 3308 | if (htab->has_double_stub) | |
| 3309 | pad_size = sizeof (aarch64_long_branch_stub) | |
| 3310 | - sizeof (aarch64_adrp_branch_stub); | |
| 3311 | } | |
| a06ea964 NC |
3312 | } |
| 3313 | ||
| 3314 | switch (stub_entry->stub_type) | |
| 3315 | { | |
| 3316 | case aarch64_stub_adrp_branch: | |
| 3317 | template = aarch64_adrp_branch_stub; | |
| 3318 | template_size = sizeof (aarch64_adrp_branch_stub); | |
| 3319 | break; | |
| 3320 | case aarch64_stub_long_branch: | |
| 3321 | template = aarch64_long_branch_stub; | |
| 3322 | template_size = sizeof (aarch64_long_branch_stub); | |
| 3323 | break; | |
| 15b4f66b SN |
3324 | case aarch64_stub_bti_direct_branch: |
| 3325 | template = aarch64_bti_direct_branch_stub; | |
| 3326 | template_size = sizeof (aarch64_bti_direct_branch_stub); | |
| 3327 | break; | |
| 68fcca92 JW |
3328 | case aarch64_stub_erratum_835769_veneer: |
| 3329 | template = aarch64_erratum_835769_stub; | |
| 3330 | template_size = sizeof (aarch64_erratum_835769_stub); | |
| 3331 | break; | |
| 4106101c MS |
3332 | case aarch64_stub_erratum_843419_veneer: |
| 3333 | template = aarch64_erratum_843419_stub; | |
| 3334 | template_size = sizeof (aarch64_erratum_843419_stub); | |
| 3335 | break; | |
| a06ea964 | 3336 | default: |
| 8e2fe09f | 3337 | abort (); |
| a06ea964 NC |
3338 | } |
| 3339 | ||
| 3340 | for (i = 0; i < (template_size / sizeof template[0]); i++) | |
| 3341 | { | |
| 3342 | bfd_putl32 (template[i], loc); | |
| 3343 | loc += 4; | |
| 3344 | } | |
| 3345 | ||
| 15b4f66b | 3346 | template_size += pad_size; |
| a06ea964 NC |
3347 | template_size = (template_size + 7) & ~7; |
| 3348 | stub_sec->size += template_size; | |
| 3349 | ||
| 3350 | switch (stub_entry->stub_type) | |
| 3351 | { | |
| 3352 | case aarch64_stub_adrp_branch: | |
| 1d75a8e2 NC |
3353 | if (!aarch64_relocate (AARCH64_R (ADR_PREL_PG_HI21), stub_bfd, stub_sec, |
| 3354 | stub_entry->stub_offset, sym_value)) | |
| a06ea964 NC |
3355 | /* The stub would not have been relaxed if the offset was out |
| 3356 | of range. */ | |
| 3357 | BFD_FAIL (); | |
| 3358 | ||
| 1d75a8e2 NC |
3359 | if (!aarch64_relocate (AARCH64_R (ADD_ABS_LO12_NC), stub_bfd, stub_sec, |
| 3360 | stub_entry->stub_offset + 4, sym_value)) | |
| 93ca8569 | 3361 | BFD_FAIL (); |
| a06ea964 NC |
3362 | break; |
| 3363 | ||
| 3364 | case aarch64_stub_long_branch: | |
| 3365 | /* We want the value relative to the address 12 bytes back from the | |
| 07d6d2b8 | 3366 | value itself. */ |
| 1d75a8e2 NC |
3367 | if (!aarch64_relocate (AARCH64_R (PRELNN), stub_bfd, stub_sec, |
| 3368 | stub_entry->stub_offset + 16, sym_value + 12)) | |
| 93ca8569 | 3369 | BFD_FAIL (); |
| a06ea964 | 3370 | break; |
| 68fcca92 | 3371 | |
| 15b4f66b SN |
3372 | case aarch64_stub_bti_direct_branch: |
| 3373 | if (!aarch64_relocate (AARCH64_R (JUMP26), stub_bfd, stub_sec, | |
| 3374 | stub_entry->stub_offset + 4, sym_value)) | |
| 3375 | BFD_FAIL (); | |
| 3376 | break; | |
| 3377 | ||
| 68fcca92 JW |
3378 | case aarch64_stub_erratum_835769_veneer: |
| 3379 | veneered_insn_loc = stub_entry->target_section->output_section->vma | |
| 3380 | + stub_entry->target_section->output_offset | |
| 3381 | + stub_entry->target_value; | |
| 3382 | veneer_entry_loc = stub_entry->stub_sec->output_section->vma | |
| 3383 | + stub_entry->stub_sec->output_offset | |
| 3384 | + stub_entry->stub_offset; | |
| 3385 | branch_offset = veneered_insn_loc - veneer_entry_loc; | |
| 3386 | branch_offset >>= 2; | |
| 3387 | branch_offset &= 0x3ffffff; | |
| 3388 | bfd_putl32 (stub_entry->veneered_insn, | |
| 3389 | stub_sec->contents + stub_entry->stub_offset); | |
| 3390 | bfd_putl32 (template[1] | branch_offset, | |
| 3391 | stub_sec->contents + stub_entry->stub_offset + 4); | |
| 3392 | break; | |
| 3393 | ||
| 4106101c | 3394 | case aarch64_stub_erratum_843419_veneer: |
| 1d75a8e2 NC |
3395 | if (!aarch64_relocate (AARCH64_R (JUMP26), stub_bfd, stub_sec, |
| 3396 | stub_entry->stub_offset + 4, sym_value + 4)) | |
| 4106101c MS |
3397 | BFD_FAIL (); |
| 3398 | break; | |
| 3399 | ||
| a06ea964 | 3400 | default: |
| 8e2fe09f | 3401 | abort (); |
| a06ea964 NC |
3402 | } |
| 3403 | ||
| 0a1b45a2 | 3404 | return true; |
| a06ea964 NC |
3405 | } |
| 3406 | ||
| 3407 | /* As above, but don't actually build the stub. Just bump offset so | |
| 15b4f66b SN |
3408 | we know stub section sizes and record the offset for each stub so |
| 3409 | a stub can target another stub (needed for BTI direct branch stub). */ | |
| a06ea964 | 3410 | |
| 0a1b45a2 | 3411 | static bool |
| 739b5c9c | 3412 | aarch64_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| a06ea964 | 3413 | { |
| cec5225b | 3414 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| 739b5c9c | 3415 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 NC |
3416 | int size; |
| 3417 | ||
| 3418 | /* Massage our args to the form they really have. */ | |
| cec5225b | 3419 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; |
| 739b5c9c | 3420 | htab = (struct elf_aarch64_link_hash_table *) in_arg; |
| a06ea964 NC |
3421 | |
| 3422 | switch (stub_entry->stub_type) | |
| 3423 | { | |
| 3424 | case aarch64_stub_adrp_branch: | |
| 3425 | size = sizeof (aarch64_adrp_branch_stub); | |
| 3426 | break; | |
| 3427 | case aarch64_stub_long_branch: | |
| 3428 | size = sizeof (aarch64_long_branch_stub); | |
| 3429 | break; | |
| 15b4f66b SN |
3430 | case aarch64_stub_bti_direct_branch: |
| 3431 | size = sizeof (aarch64_bti_direct_branch_stub); | |
| 3432 | break; | |
| 68fcca92 JW |
3433 | case aarch64_stub_erratum_835769_veneer: |
| 3434 | size = sizeof (aarch64_erratum_835769_stub); | |
| 3435 | break; | |
| 4106101c | 3436 | case aarch64_stub_erratum_843419_veneer: |
| 739b5c9c TC |
3437 | { |
| 3438 | if (htab->fix_erratum_843419 == ERRAT_ADR) | |
| 0a1b45a2 | 3439 | return true; |
| 739b5c9c TC |
3440 | size = sizeof (aarch64_erratum_843419_stub); |
| 3441 | } | |
| 4106101c | 3442 | break; |
| a06ea964 | 3443 | default: |
| 8e2fe09f | 3444 | abort (); |
| a06ea964 NC |
3445 | } |
| 3446 | ||
| 3447 | size = (size + 7) & ~7; | |
| 15b4f66b | 3448 | stub_entry->stub_offset = stub_entry->stub_sec->size; |
| a06ea964 | 3449 | stub_entry->stub_sec->size += size; |
| 0a1b45a2 | 3450 | return true; |
| a06ea964 NC |
3451 | } |
| 3452 | ||
| 15b4f66b SN |
3453 | /* Output is BTI compatible. */ |
| 3454 | ||
| 3455 | static bool | |
| 3456 | elf_aarch64_bti_p (bfd *output_bfd) | |
| 3457 | { | |
| 3458 | uint32_t prop = elf_aarch64_tdata (output_bfd)->gnu_and_prop; | |
| 3459 | return prop & GNU_PROPERTY_AARCH64_FEATURE_1_BTI; | |
| 3460 | } | |
| 3461 | ||
| a06ea964 NC |
3462 | /* External entry points for sizing and building linker stubs. */ |
| 3463 | ||
| 3464 | /* Set up various things so that we can make a list of input sections | |
| 3465 | for each output section included in the link. Returns -1 on error, | |
| 3466 | 0 when no stubs will be needed, and 1 on success. */ | |
| 3467 | ||
| 3468 | int | |
| cec5225b | 3469 | elfNN_aarch64_setup_section_lists (bfd *output_bfd, |
| a06ea964 NC |
3470 | struct bfd_link_info *info) |
| 3471 | { | |
| 3472 | bfd *input_bfd; | |
| 3473 | unsigned int bfd_count; | |
| 7292b3ac | 3474 | unsigned int top_id, top_index; |
| a06ea964 NC |
3475 | asection *section; |
| 3476 | asection **input_list, **list; | |
| 986f0783 | 3477 | size_t amt; |
| cec5225b YZ |
3478 | struct elf_aarch64_link_hash_table *htab = |
| 3479 | elf_aarch64_hash_table (info); | |
| a06ea964 | 3480 | |
| 2cc15b10 | 3481 | if (!is_elf_hash_table (&htab->root.root)) |
| a06ea964 NC |
3482 | return 0; |
| 3483 | ||
| 3484 | /* Count the number of input BFDs and find the top input section id. */ | |
| 3485 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
| c72f2fb2 | 3486 | input_bfd != NULL; input_bfd = input_bfd->link.next) |
| a06ea964 NC |
3487 | { |
| 3488 | bfd_count += 1; | |
| 3489 | for (section = input_bfd->sections; | |
| 3490 | section != NULL; section = section->next) | |
| 3491 | { | |
| 3492 | if (top_id < section->id) | |
| 3493 | top_id = section->id; | |
| 3494 | } | |
| 3495 | } | |
| 3496 | htab->bfd_count = bfd_count; | |
| 3497 | ||
| 3498 | amt = sizeof (struct map_stub) * (top_id + 1); | |
| 3499 | htab->stub_group = bfd_zmalloc (amt); | |
| 3500 | if (htab->stub_group == NULL) | |
| 3501 | return -1; | |
| 3502 | ||
| 3503 | /* We can't use output_bfd->section_count here to find the top output | |
| 3504 | section index as some sections may have been removed, and | |
| 3505 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
| 3506 | for (section = output_bfd->sections, top_index = 0; | |
| 3507 | section != NULL; section = section->next) | |
| 3508 | { | |
| 3509 | if (top_index < section->index) | |
| 3510 | top_index = section->index; | |
| 3511 | } | |
| 3512 | ||
| 3513 | htab->top_index = top_index; | |
| 3514 | amt = sizeof (asection *) * (top_index + 1); | |
| 3515 | input_list = bfd_malloc (amt); | |
| 3516 | htab->input_list = input_list; | |
| 3517 | if (input_list == NULL) | |
| 3518 | return -1; | |
| 3519 | ||
| 3520 | /* For sections we aren't interested in, mark their entries with a | |
| 3521 | value we can check later. */ | |
| 3522 | list = input_list + top_index; | |
| 3523 | do | |
| 3524 | *list = bfd_abs_section_ptr; | |
| 3525 | while (list-- != input_list); | |
| 3526 | ||
| 3527 | for (section = output_bfd->sections; | |
| 3528 | section != NULL; section = section->next) | |
| 3529 | { | |
| 3530 | if ((section->flags & SEC_CODE) != 0) | |
| 3531 | input_list[section->index] = NULL; | |
| 3532 | } | |
| 3533 | ||
| 3534 | return 1; | |
| 3535 | } | |
| 3536 | ||
| cec5225b | 3537 | /* Used by elfNN_aarch64_next_input_section and group_sections. */ |
| a06ea964 NC |
3538 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
| 3539 | ||
| 3540 | /* The linker repeatedly calls this function for each input section, | |
| 3541 | in the order that input sections are linked into output sections. | |
| 3542 | Build lists of input sections to determine groupings between which | |
| 3543 | we may insert linker stubs. */ | |
| 3544 | ||
| 3545 | void | |
| cec5225b | 3546 | elfNN_aarch64_next_input_section (struct bfd_link_info *info, asection *isec) |
| a06ea964 | 3547 | { |
| cec5225b YZ |
3548 | struct elf_aarch64_link_hash_table *htab = |
| 3549 | elf_aarch64_hash_table (info); | |
| a06ea964 NC |
3550 | |
| 3551 | if (isec->output_section->index <= htab->top_index) | |
| 3552 | { | |
| 3553 | asection **list = htab->input_list + isec->output_section->index; | |
| 3554 | ||
| cff69cf4 | 3555 | if (*list != bfd_abs_section_ptr && (isec->flags & SEC_CODE) != 0) |
| a06ea964 NC |
3556 | { |
| 3557 | /* Steal the link_sec pointer for our list. */ | |
| 3558 | /* This happens to make the list in reverse order, | |
| 3559 | which is what we want. */ | |
| 3560 | PREV_SEC (isec) = *list; | |
| 3561 | *list = isec; | |
| 3562 | } | |
| 3563 | } | |
| 3564 | } | |
| 3565 | ||
| 3566 | /* See whether we can group stub sections together. Grouping stub | |
| 3567 | sections may result in fewer stubs. More importantly, we need to | |
| 3568 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 3569 | .fini output sections respectively, because glibc splits the | |
| 3570 | _init and _fini functions into multiple parts. Putting a stub in | |
| 3571 | the middle of a function is not a good idea. */ | |
| 3572 | ||
| 3573 | static void | |
| cec5225b | 3574 | group_sections (struct elf_aarch64_link_hash_table *htab, |
| a06ea964 | 3575 | bfd_size_type stub_group_size, |
| 0a1b45a2 | 3576 | bool stubs_always_after_branch) |
| a06ea964 | 3577 | { |
| cff69cf4 | 3578 | asection **list = htab->input_list; |
| a06ea964 NC |
3579 | |
| 3580 | do | |
| 3581 | { | |
| 3582 | asection *tail = *list; | |
| cff69cf4 | 3583 | asection *head; |
| a06ea964 NC |
3584 | |
| 3585 | if (tail == bfd_abs_section_ptr) | |
| 3586 | continue; | |
| 3587 | ||
| cff69cf4 WD |
3588 | /* Reverse the list: we must avoid placing stubs at the |
| 3589 | beginning of the section because the beginning of the text | |
| 3590 | section may be required for an interrupt vector in bare metal | |
| 3591 | code. */ | |
| 3592 | #define NEXT_SEC PREV_SEC | |
| 3593 | head = NULL; | |
| a06ea964 | 3594 | while (tail != NULL) |
| cff69cf4 WD |
3595 | { |
| 3596 | /* Pop from tail. */ | |
| 3597 | asection *item = tail; | |
| 3598 | tail = PREV_SEC (item); | |
| 3599 | ||
| 3600 | /* Push on head. */ | |
| 3601 | NEXT_SEC (item) = head; | |
| 3602 | head = item; | |
| 3603 | } | |
| 3604 | ||
| 3605 | while (head != NULL) | |
| a06ea964 NC |
3606 | { |
| 3607 | asection *curr; | |
| cff69cf4 WD |
3608 | asection *next; |
| 3609 | bfd_vma stub_group_start = head->output_offset; | |
| 3610 | bfd_vma end_of_next; | |
| a06ea964 | 3611 | |
| cff69cf4 WD |
3612 | curr = head; |
| 3613 | while (NEXT_SEC (curr) != NULL) | |
| 3614 | { | |
| 3615 | next = NEXT_SEC (curr); | |
| 3616 | end_of_next = next->output_offset + next->size; | |
| 3617 | if (end_of_next - stub_group_start >= stub_group_size) | |
| 3618 | /* End of NEXT is too far from start, so stop. */ | |
| 3619 | break; | |
| 3620 | /* Add NEXT to the group. */ | |
| 3621 | curr = next; | |
| 3622 | } | |
| a06ea964 | 3623 | |
| cff69cf4 | 3624 | /* OK, the size from the start to the start of CURR is less |
| a06ea964 | 3625 | than stub_group_size and thus can be handled by one stub |
| cff69cf4 | 3626 | section. (Or the head section is itself larger than |
| a06ea964 NC |
3627 | stub_group_size, in which case we may be toast.) |
| 3628 | We should really be keeping track of the total size of | |
| 3629 | stubs added here, as stubs contribute to the final output | |
| 3630 | section size. */ | |
| 3631 | do | |
| 3632 | { | |
| cff69cf4 | 3633 | next = NEXT_SEC (head); |
| a06ea964 | 3634 | /* Set up this stub group. */ |
| cff69cf4 | 3635 | htab->stub_group[head->id].link_sec = curr; |
| a06ea964 | 3636 | } |
| cff69cf4 | 3637 | while (head != curr && (head = next) != NULL); |
| a06ea964 NC |
3638 | |
| 3639 | /* But wait, there's more! Input sections up to stub_group_size | |
| cff69cf4 WD |
3640 | bytes after the stub section can be handled by it too. */ |
| 3641 | if (!stubs_always_after_branch) | |
| a06ea964 | 3642 | { |
| cff69cf4 WD |
3643 | stub_group_start = curr->output_offset + curr->size; |
| 3644 | ||
| 3645 | while (next != NULL) | |
| a06ea964 | 3646 | { |
| cff69cf4 WD |
3647 | end_of_next = next->output_offset + next->size; |
| 3648 | if (end_of_next - stub_group_start >= stub_group_size) | |
| 3649 | /* End of NEXT is too far from stubs, so stop. */ | |
| 3650 | break; | |
| 3651 | /* Add NEXT to the stub group. */ | |
| 3652 | head = next; | |
| 3653 | next = NEXT_SEC (head); | |
| 3654 | htab->stub_group[head->id].link_sec = curr; | |
| a06ea964 NC |
3655 | } |
| 3656 | } | |
| cff69cf4 | 3657 | head = next; |
| a06ea964 NC |
3658 | } |
| 3659 | } | |
| cff69cf4 | 3660 | while (list++ != htab->input_list + htab->top_index); |
| a06ea964 NC |
3661 | |
| 3662 | free (htab->input_list); | |
| 3663 | } | |
| 3664 | ||
| cff69cf4 | 3665 | #undef PREV_SEC |
| a06ea964 NC |
3666 | #undef PREV_SEC |
| 3667 | ||
| 5834f36d SN |
3668 | #define AARCH64_HINT(insn) (((insn) & 0xfffff01f) == 0xd503201f) |
| 3669 | #define AARCH64_PACIASP 0xd503233f | |
| 3670 | #define AARCH64_PACIBSP 0xd503237f | |
| 3671 | #define AARCH64_BTI_C 0xd503245f | |
| 3672 | #define AARCH64_BTI_J 0xd503249f | |
| 3673 | #define AARCH64_BTI_JC 0xd50324df | |
| 3674 | ||
| 15b4f66b SN |
3675 | /* True if the inserted stub does not break BTI compatibility. */ |
| 3676 | ||
| 3677 | static bool | |
| 5834f36d SN |
3678 | aarch64_bti_stub_p (bfd *input_bfd, |
| 3679 | struct elf_aarch64_stub_hash_entry *stub_entry) | |
| 15b4f66b SN |
3680 | { |
| 3681 | /* Stubs without indirect branch are BTI compatible. */ | |
| 5834f36d SN |
3682 | if (stub_entry->stub_type != aarch64_stub_adrp_branch |
| 3683 | && stub_entry->stub_type != aarch64_stub_long_branch) | |
| 3684 | return true; | |
| 3685 | ||
| 3686 | /* Return true if the target instruction is compatible with BR x16. */ | |
| 3687 | ||
| 3688 | asection *section = stub_entry->target_section; | |
| 3689 | bfd_byte loc[4]; | |
| 3690 | file_ptr off = stub_entry->target_value; | |
| 3691 | bfd_size_type count = sizeof (loc); | |
| 3692 | ||
| 3693 | if (!bfd_get_section_contents (input_bfd, section, loc, off, count)) | |
| 3694 | return false; | |
| 3695 | ||
| 3696 | uint32_t insn = bfd_getl32 (loc); | |
| 3697 | if (!AARCH64_HINT (insn)) | |
| 3698 | return false; | |
| 3699 | return insn == AARCH64_BTI_C | |
| 3700 | || insn == AARCH64_PACIASP | |
| 3701 | || insn == AARCH64_BTI_JC | |
| 3702 | || insn == AARCH64_BTI_J | |
| 3703 | || insn == AARCH64_PACIBSP; | |
| 15b4f66b SN |
3704 | } |
| 3705 | ||
| 68fcca92 JW |
3706 | #define AARCH64_BITS(x, pos, n) (((x) >> (pos)) & ((1 << (n)) - 1)) |
| 3707 | ||
| 3708 | #define AARCH64_RT(insn) AARCH64_BITS (insn, 0, 5) | |
| 3709 | #define AARCH64_RT2(insn) AARCH64_BITS (insn, 10, 5) | |
| 3710 | #define AARCH64_RA(insn) AARCH64_BITS (insn, 10, 5) | |
| 3711 | #define AARCH64_RD(insn) AARCH64_BITS (insn, 0, 5) | |
| 3712 | #define AARCH64_RN(insn) AARCH64_BITS (insn, 5, 5) | |
| 3713 | #define AARCH64_RM(insn) AARCH64_BITS (insn, 16, 5) | |
| 3714 | ||
| 3715 | #define AARCH64_MAC(insn) (((insn) & 0xff000000) == 0x9b000000) | |
| 3716 | #define AARCH64_BIT(insn, n) AARCH64_BITS (insn, n, 1) | |
| 3717 | #define AARCH64_OP31(insn) AARCH64_BITS (insn, 21, 3) | |
| 3718 | #define AARCH64_ZR 0x1f | |
| 3719 | ||
| 3720 | /* All ld/st ops. See C4-182 of the ARM ARM. The encoding space for | |
| 3721 | LD_PCREL, LDST_RO, LDST_UI and LDST_UIMM cover prefetch ops. */ | |
| 3722 | ||
| 3723 | #define AARCH64_LD(insn) (AARCH64_BIT (insn, 22) == 1) | |
| 3724 | #define AARCH64_LDST(insn) (((insn) & 0x0a000000) == 0x08000000) | |
| 3725 | #define AARCH64_LDST_EX(insn) (((insn) & 0x3f000000) == 0x08000000) | |
| 3726 | #define AARCH64_LDST_PCREL(insn) (((insn) & 0x3b000000) == 0x18000000) | |
| 3727 | #define AARCH64_LDST_NAP(insn) (((insn) & 0x3b800000) == 0x28000000) | |
| 3728 | #define AARCH64_LDSTP_PI(insn) (((insn) & 0x3b800000) == 0x28800000) | |
| 3729 | #define AARCH64_LDSTP_O(insn) (((insn) & 0x3b800000) == 0x29000000) | |
| 3730 | #define AARCH64_LDSTP_PRE(insn) (((insn) & 0x3b800000) == 0x29800000) | |
| 3731 | #define AARCH64_LDST_UI(insn) (((insn) & 0x3b200c00) == 0x38000000) | |
| 3732 | #define AARCH64_LDST_PIIMM(insn) (((insn) & 0x3b200c00) == 0x38000400) | |
| 3733 | #define AARCH64_LDST_U(insn) (((insn) & 0x3b200c00) == 0x38000800) | |
| 3734 | #define AARCH64_LDST_PREIMM(insn) (((insn) & 0x3b200c00) == 0x38000c00) | |
| 3735 | #define AARCH64_LDST_RO(insn) (((insn) & 0x3b200c00) == 0x38200800) | |
| 3736 | #define AARCH64_LDST_UIMM(insn) (((insn) & 0x3b000000) == 0x39000000) | |
| 3737 | #define AARCH64_LDST_SIMD_M(insn) (((insn) & 0xbfbf0000) == 0x0c000000) | |
| 3738 | #define AARCH64_LDST_SIMD_M_PI(insn) (((insn) & 0xbfa00000) == 0x0c800000) | |
| 3739 | #define AARCH64_LDST_SIMD_S(insn) (((insn) & 0xbf9f0000) == 0x0d000000) | |
| 3740 | #define AARCH64_LDST_SIMD_S_PI(insn) (((insn) & 0xbf800000) == 0x0d800000) | |
| 3741 | ||
| 3d14faea MS |
3742 | /* Classify an INSN if it is indeed a load/store. |
| 3743 | ||
| 3744 | Return TRUE if INSN is a LD/ST instruction otherwise return FALSE. | |
| 3745 | ||
| 3746 | For scalar LD/ST instructions PAIR is FALSE, RT is returned and RT2 | |
| 3747 | is set equal to RT. | |
| 3748 | ||
| 2d0ca824 | 3749 | For LD/ST pair instructions PAIR is TRUE, RT and RT2 are returned. */ |
| 68fcca92 | 3750 | |
| 0a1b45a2 | 3751 | static bool |
| 3d14faea | 3752 | aarch64_mem_op_p (uint32_t insn, unsigned int *rt, unsigned int *rt2, |
| 0a1b45a2 | 3753 | bool *pair, bool *load) |
| 68fcca92 JW |
3754 | { |
| 3755 | uint32_t opcode; | |
| 3756 | unsigned int r; | |
| 3757 | uint32_t opc = 0; | |
| 3758 | uint32_t v = 0; | |
| 3759 | uint32_t opc_v = 0; | |
| 3760 | ||
| de194d85 | 3761 | /* Bail out quickly if INSN doesn't fall into the load-store |
| 68fcca92 JW |
3762 | encoding space. */ |
| 3763 | if (!AARCH64_LDST (insn)) | |
| 0a1b45a2 | 3764 | return false; |
| 68fcca92 | 3765 | |
| 0a1b45a2 AM |
3766 | *pair = false; |
| 3767 | *load = false; | |
| 68fcca92 JW |
3768 | if (AARCH64_LDST_EX (insn)) |
| 3769 | { | |
| 3770 | *rt = AARCH64_RT (insn); | |
| 3d14faea | 3771 | *rt2 = *rt; |
| 68fcca92 | 3772 | if (AARCH64_BIT (insn, 21) == 1) |
| 07d6d2b8 | 3773 | { |
| 0a1b45a2 | 3774 | *pair = true; |
| 3d14faea | 3775 | *rt2 = AARCH64_RT2 (insn); |
| 68fcca92 JW |
3776 | } |
| 3777 | *load = AARCH64_LD (insn); | |
| 0a1b45a2 | 3778 | return true; |
| 68fcca92 JW |
3779 | } |
| 3780 | else if (AARCH64_LDST_NAP (insn) | |
| 3781 | || AARCH64_LDSTP_PI (insn) | |
| 3782 | || AARCH64_LDSTP_O (insn) | |
| 3783 | || AARCH64_LDSTP_PRE (insn)) | |
| 3784 | { | |
| 0a1b45a2 | 3785 | *pair = true; |
| 68fcca92 | 3786 | *rt = AARCH64_RT (insn); |
| 3d14faea | 3787 | *rt2 = AARCH64_RT2 (insn); |
| 68fcca92 | 3788 | *load = AARCH64_LD (insn); |
| 0a1b45a2 | 3789 | return true; |
| 68fcca92 JW |
3790 | } |
| 3791 | else if (AARCH64_LDST_PCREL (insn) | |
| 3792 | || AARCH64_LDST_UI (insn) | |
| 3793 | || AARCH64_LDST_PIIMM (insn) | |
| 3794 | || AARCH64_LDST_U (insn) | |
| 3795 | || AARCH64_LDST_PREIMM (insn) | |
| 3796 | || AARCH64_LDST_RO (insn) | |
| 3797 | || AARCH64_LDST_UIMM (insn)) | |
| 3798 | { | |
| 3799 | *rt = AARCH64_RT (insn); | |
| 3d14faea | 3800 | *rt2 = *rt; |
| 68fcca92 | 3801 | if (AARCH64_LDST_PCREL (insn)) |
| 0a1b45a2 | 3802 | *load = true; |
| 68fcca92 JW |
3803 | opc = AARCH64_BITS (insn, 22, 2); |
| 3804 | v = AARCH64_BIT (insn, 26); | |
| 3805 | opc_v = opc | (v << 2); | |
| 3806 | *load = (opc_v == 1 || opc_v == 2 || opc_v == 3 | |
| 3807 | || opc_v == 5 || opc_v == 7); | |
| 0a1b45a2 | 3808 | return true; |
| 68fcca92 JW |
3809 | } |
| 3810 | else if (AARCH64_LDST_SIMD_M (insn) | |
| 3811 | || AARCH64_LDST_SIMD_M_PI (insn)) | |
| 3812 | { | |
| 3813 | *rt = AARCH64_RT (insn); | |
| 3814 | *load = AARCH64_BIT (insn, 22); | |
| 3815 | opcode = (insn >> 12) & 0xf; | |
| 3816 | switch (opcode) | |
| 3817 | { | |
| 3818 | case 0: | |
| 3819 | case 2: | |
| 3d14faea | 3820 | *rt2 = *rt + 3; |
| 68fcca92 JW |
3821 | break; |
| 3822 | ||
| 3823 | case 4: | |
| 3824 | case 6: | |
| 3d14faea | 3825 | *rt2 = *rt + 2; |
| 68fcca92 JW |
3826 | break; |
| 3827 | ||
| 3828 | case 7: | |
| 3d14faea | 3829 | *rt2 = *rt; |
| 68fcca92 JW |
3830 | break; |
| 3831 | ||
| 3832 | case 8: | |
| 3833 | case 10: | |
| 3d14faea | 3834 | *rt2 = *rt + 1; |
| 68fcca92 JW |
3835 | break; |
| 3836 | ||
| 3837 | default: | |
| 0a1b45a2 | 3838 | return false; |
| 68fcca92 | 3839 | } |
| 0a1b45a2 | 3840 | return true; |
| 68fcca92 JW |
3841 | } |
| 3842 | else if (AARCH64_LDST_SIMD_S (insn) | |
| 3843 | || AARCH64_LDST_SIMD_S_PI (insn)) | |
| 3844 | { | |
| 3845 | *rt = AARCH64_RT (insn); | |
| 3846 | r = (insn >> 21) & 1; | |
| 3847 | *load = AARCH64_BIT (insn, 22); | |
| 3848 | opcode = (insn >> 13) & 0x7; | |
| 3849 | switch (opcode) | |
| 3850 | { | |
| 3851 | case 0: | |
| 3852 | case 2: | |
| 3853 | case 4: | |
| 3d14faea | 3854 | *rt2 = *rt + r; |
| 68fcca92 JW |
3855 | break; |
| 3856 | ||
| 3857 | case 1: | |
| 3858 | case 3: | |
| 3859 | case 5: | |
| 3d14faea | 3860 | *rt2 = *rt + (r == 0 ? 2 : 3); |
| 68fcca92 JW |
3861 | break; |
| 3862 | ||
| 3863 | case 6: | |
| 3d14faea | 3864 | *rt2 = *rt + r; |
| 68fcca92 JW |
3865 | break; |
| 3866 | ||
| 3867 | case 7: | |
| 3d14faea | 3868 | *rt2 = *rt + (r == 0 ? 2 : 3); |
| 68fcca92 JW |
3869 | break; |
| 3870 | ||
| 3871 | default: | |
| 0a1b45a2 | 3872 | return false; |
| 68fcca92 | 3873 | } |
| 0a1b45a2 | 3874 | return true; |
| 68fcca92 JW |
3875 | } |
| 3876 | ||
| 0a1b45a2 | 3877 | return false; |
| 68fcca92 JW |
3878 | } |
| 3879 | ||
| 3880 | /* Return TRUE if INSN is multiply-accumulate. */ | |
| 3881 | ||
| 0a1b45a2 | 3882 | static bool |
| 68fcca92 JW |
3883 | aarch64_mlxl_p (uint32_t insn) |
| 3884 | { | |
| 3885 | uint32_t op31 = AARCH64_OP31 (insn); | |
| 3886 | ||
| 3887 | if (AARCH64_MAC (insn) | |
| 3888 | && (op31 == 0 || op31 == 1 || op31 == 5) | |
| 3889 | /* Exclude MUL instructions which are encoded as a multiple accumulate | |
| 3890 | with RA = XZR. */ | |
| 3891 | && AARCH64_RA (insn) != AARCH64_ZR) | |
| 0a1b45a2 | 3892 | return true; |
| 68fcca92 | 3893 | |
| 0a1b45a2 | 3894 | return false; |
| 68fcca92 JW |
3895 | } |
| 3896 | ||
| 3897 | /* Some early revisions of the Cortex-A53 have an erratum (835769) whereby | |
| 3898 | it is possible for a 64-bit multiply-accumulate instruction to generate an | |
| 3899 | incorrect result. The details are quite complex and hard to | |
| 3900 | determine statically, since branches in the code may exist in some | |
| 3901 | circumstances, but all cases end with a memory (load, store, or | |
| 3902 | prefetch) instruction followed immediately by the multiply-accumulate | |
| 3903 | operation. We employ a linker patching technique, by moving the potentially | |
| 3904 | affected multiply-accumulate instruction into a patch region and replacing | |
| 3905 | the original instruction with a branch to the patch. This function checks | |
| 3906 | if INSN_1 is the memory operation followed by a multiply-accumulate | |
| 3907 | operation (INSN_2). Return TRUE if an erratum sequence is found, FALSE | |
| 3908 | if INSN_1 and INSN_2 are safe. */ | |
| 3909 | ||
| 0a1b45a2 | 3910 | static bool |
| 68fcca92 JW |
3911 | aarch64_erratum_sequence (uint32_t insn_1, uint32_t insn_2) |
| 3912 | { | |
| 3913 | uint32_t rt; | |
| 3d14faea | 3914 | uint32_t rt2; |
| 68fcca92 JW |
3915 | uint32_t rn; |
| 3916 | uint32_t rm; | |
| 3917 | uint32_t ra; | |
| 0a1b45a2 AM |
3918 | bool pair; |
| 3919 | bool load; | |
| 68fcca92 JW |
3920 | |
| 3921 | if (aarch64_mlxl_p (insn_2) | |
| 3d14faea | 3922 | && aarch64_mem_op_p (insn_1, &rt, &rt2, &pair, &load)) |
| 68fcca92 JW |
3923 | { |
| 3924 | /* Any SIMD memory op is independent of the subsequent MLA | |
| 3925 | by definition of the erratum. */ | |
| 3926 | if (AARCH64_BIT (insn_1, 26)) | |
| 0a1b45a2 | 3927 | return true; |
| 68fcca92 JW |
3928 | |
| 3929 | /* If not SIMD, check for integer memory ops and MLA relationship. */ | |
| 3930 | rn = AARCH64_RN (insn_2); | |
| 3931 | ra = AARCH64_RA (insn_2); | |
| 3932 | rm = AARCH64_RM (insn_2); | |
| 3933 | ||
| 3934 | /* If this is a load and there's a true(RAW) dependency, we are safe | |
| 3935 | and this is not an erratum sequence. */ | |
| 3936 | if (load && | |
| 3937 | (rt == rn || rt == rm || rt == ra | |
| 3d14faea | 3938 | || (pair && (rt2 == rn || rt2 == rm || rt2 == ra)))) |
| 0a1b45a2 | 3939 | return false; |
| 68fcca92 JW |
3940 | |
| 3941 | /* We conservatively put out stubs for all other cases (including | |
| 3942 | writebacks). */ | |
| 0a1b45a2 | 3943 | return true; |
| 68fcca92 JW |
3944 | } |
| 3945 | ||
| 0a1b45a2 | 3946 | return false; |
| 68fcca92 JW |
3947 | } |
| 3948 | ||
| 520c7b56 JW |
3949 | /* Used to order a list of mapping symbols by address. */ |
| 3950 | ||
| 3951 | static int | |
| 3952 | elf_aarch64_compare_mapping (const void *a, const void *b) | |
| 3953 | { | |
| 3954 | const elf_aarch64_section_map *amap = (const elf_aarch64_section_map *) a; | |
| 3955 | const elf_aarch64_section_map *bmap = (const elf_aarch64_section_map *) b; | |
| 3956 | ||
| 3957 | if (amap->vma > bmap->vma) | |
| 3958 | return 1; | |
| 3959 | else if (amap->vma < bmap->vma) | |
| 3960 | return -1; | |
| 3961 | else if (amap->type > bmap->type) | |
| 3962 | /* Ensure results do not depend on the host qsort for objects with | |
| 3963 | multiple mapping symbols at the same address by sorting on type | |
| 3964 | after vma. */ | |
| 3965 | return 1; | |
| 3966 | else if (amap->type < bmap->type) | |
| 3967 | return -1; | |
| 3968 | else | |
| 3969 | return 0; | |
| 3970 | } | |
| 3971 | ||
| 2144188d | 3972 | |
| 35fee8b7 MS |
3973 | static char * |
| 3974 | _bfd_aarch64_erratum_835769_stub_name (unsigned num_fixes) | |
| 3975 | { | |
| 3976 | char *stub_name = (char *) bfd_malloc | |
| 3977 | (strlen ("__erratum_835769_veneer_") + 16); | |
| bb69498c NC |
3978 | if (stub_name != NULL) |
| 3979 | sprintf (stub_name,"__erratum_835769_veneer_%d", num_fixes); | |
| 35fee8b7 MS |
3980 | return stub_name; |
| 3981 | } | |
| 3982 | ||
| 4106101c | 3983 | /* Scan for Cortex-A53 erratum 835769 sequence. |
| 2144188d MS |
3984 | |
| 3985 | Return TRUE else FALSE on abnormal termination. */ | |
| 3986 | ||
| 0a1b45a2 | 3987 | static bool |
| 5421cc6e MS |
3988 | _bfd_aarch64_erratum_835769_scan (bfd *input_bfd, |
| 3989 | struct bfd_link_info *info, | |
| 3990 | unsigned int *num_fixes_p) | |
| 68fcca92 JW |
3991 | { |
| 3992 | asection *section; | |
| 3993 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); | |
| 68fcca92 | 3994 | unsigned int num_fixes = *num_fixes_p; |
| 68fcca92 JW |
3995 | |
| 3996 | if (htab == NULL) | |
| 0a1b45a2 | 3997 | return true; |
| 68fcca92 JW |
3998 | |
| 3999 | for (section = input_bfd->sections; | |
| 4000 | section != NULL; | |
| 4001 | section = section->next) | |
| 4002 | { | |
| 4003 | bfd_byte *contents = NULL; | |
| 4004 | struct _aarch64_elf_section_data *sec_data; | |
| 4005 | unsigned int span; | |
| 4006 | ||
| 4007 | if (elf_section_type (section) != SHT_PROGBITS | |
| 4008 | || (elf_section_flags (section) & SHF_EXECINSTR) == 0 | |
| 4009 | || (section->flags & SEC_EXCLUDE) != 0 | |
| 4010 | || (section->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) | |
| 4011 | || (section->output_section == bfd_abs_section_ptr)) | |
| 4012 | continue; | |
| 4013 | ||
| 4014 | if (elf_section_data (section)->this_hdr.contents != NULL) | |
| 4015 | contents = elf_section_data (section)->this_hdr.contents; | |
| 4016 | else if (! bfd_malloc_and_get_section (input_bfd, section, &contents)) | |
| 0a1b45a2 | 4017 | return false; |
| 68fcca92 JW |
4018 | |
| 4019 | sec_data = elf_aarch64_section_data (section); | |
| 520c7b56 | 4020 | |
| ccf61261 NC |
4021 | if (sec_data->mapcount) |
| 4022 | qsort (sec_data->map, sec_data->mapcount, | |
| 4023 | sizeof (elf_aarch64_section_map), elf_aarch64_compare_mapping); | |
| 520c7b56 | 4024 | |
| 68fcca92 JW |
4025 | for (span = 0; span < sec_data->mapcount; span++) |
| 4026 | { | |
| 4027 | unsigned int span_start = sec_data->map[span].vma; | |
| 4028 | unsigned int span_end = ((span == sec_data->mapcount - 1) | |
| 4029 | ? sec_data->map[0].vma + section->size | |
| 4030 | : sec_data->map[span + 1].vma); | |
| 4031 | unsigned int i; | |
| 4032 | char span_type = sec_data->map[span].type; | |
| 4033 | ||
| 4034 | if (span_type == 'd') | |
| 4035 | continue; | |
| 4036 | ||
| 4037 | for (i = span_start; i + 4 < span_end; i += 4) | |
| 4038 | { | |
| 4039 | uint32_t insn_1 = bfd_getl32 (contents + i); | |
| 4040 | uint32_t insn_2 = bfd_getl32 (contents + i + 4); | |
| 4041 | ||
| 4042 | if (aarch64_erratum_sequence (insn_1, insn_2)) | |
| 4043 | { | |
| 5421cc6e | 4044 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| 35fee8b7 MS |
4045 | char *stub_name = _bfd_aarch64_erratum_835769_stub_name (num_fixes); |
| 4046 | if (! stub_name) | |
| 0a1b45a2 | 4047 | return false; |
| 68fcca92 | 4048 | |
| 5421cc6e MS |
4049 | stub_entry = _bfd_aarch64_add_stub_entry_in_group (stub_name, |
| 4050 | section, | |
| 4051 | htab); | |
| 4052 | if (! stub_entry) | |
| 0a1b45a2 | 4053 | return false; |
| 68fcca92 | 4054 | |
| 5421cc6e MS |
4055 | stub_entry->stub_type = aarch64_stub_erratum_835769_veneer; |
| 4056 | stub_entry->target_section = section; | |
| 4057 | stub_entry->target_value = i + 4; | |
| 4058 | stub_entry->veneered_insn = insn_2; | |
| 4059 | stub_entry->output_name = stub_name; | |
| 68fcca92 JW |
4060 | num_fixes++; |
| 4061 | } | |
| 4062 | } | |
| 4063 | } | |
| 4064 | if (elf_section_data (section)->this_hdr.contents == NULL) | |
| 4065 | free (contents); | |
| 4066 | } | |
| 4067 | ||
| 357d1523 MS |
4068 | *num_fixes_p = num_fixes; |
| 4069 | ||
| 0a1b45a2 | 4070 | return true; |
| 68fcca92 JW |
4071 | } |
| 4072 | ||
| 13f622ec | 4073 | |
| 4106101c MS |
4074 | /* Test if instruction INSN is ADRP. */ |
| 4075 | ||
| 0a1b45a2 | 4076 | static bool |
| 4106101c MS |
4077 | _bfd_aarch64_adrp_p (uint32_t insn) |
| 4078 | { | |
| 9fca35fc | 4079 | return ((insn & AARCH64_ADRP_OP_MASK) == AARCH64_ADRP_OP); |
| 4106101c MS |
4080 | } |
| 4081 | ||
| 4082 | ||
| 4083 | /* Helper predicate to look for cortex-a53 erratum 843419 sequence 1. */ | |
| 4084 | ||
| 0a1b45a2 | 4085 | static bool |
| 4106101c MS |
4086 | _bfd_aarch64_erratum_843419_sequence_p (uint32_t insn_1, uint32_t insn_2, |
| 4087 | uint32_t insn_3) | |
| 4088 | { | |
| 4089 | uint32_t rt; | |
| 4090 | uint32_t rt2; | |
| 0a1b45a2 AM |
4091 | bool pair; |
| 4092 | bool load; | |
| 4106101c MS |
4093 | |
| 4094 | return (aarch64_mem_op_p (insn_2, &rt, &rt2, &pair, &load) | |
| 4095 | && (!pair | |
| 4096 | || (pair && !load)) | |
| 4097 | && AARCH64_LDST_UIMM (insn_3) | |
| 4098 | && AARCH64_RN (insn_3) == AARCH64_RD (insn_1)); | |
| 4099 | } | |
| 4100 | ||
| 4101 | ||
| 4102 | /* Test for the presence of Cortex-A53 erratum 843419 instruction sequence. | |
| 4103 | ||
| 4104 | Return TRUE if section CONTENTS at offset I contains one of the | |
| 4105 | erratum 843419 sequences, otherwise return FALSE. If a sequence is | |
| 4106 | seen set P_VENEER_I to the offset of the final LOAD/STORE | |
| 4107 | instruction in the sequence. | |
| 4108 | */ | |
| 4109 | ||
| 0a1b45a2 | 4110 | static bool |
| 4106101c MS |
4111 | _bfd_aarch64_erratum_843419_p (bfd_byte *contents, bfd_vma vma, |
| 4112 | bfd_vma i, bfd_vma span_end, | |
| 4113 | bfd_vma *p_veneer_i) | |
| 4114 | { | |
| 4115 | uint32_t insn_1 = bfd_getl32 (contents + i); | |
| 4116 | ||
| 4117 | if (!_bfd_aarch64_adrp_p (insn_1)) | |
| 0a1b45a2 | 4118 | return false; |
| 4106101c MS |
4119 | |
| 4120 | if (span_end < i + 12) | |
| 0a1b45a2 | 4121 | return false; |
| 4106101c MS |
4122 | |
| 4123 | uint32_t insn_2 = bfd_getl32 (contents + i + 4); | |
| 4124 | uint32_t insn_3 = bfd_getl32 (contents + i + 8); | |
| 4125 | ||
| 4126 | if ((vma & 0xfff) != 0xff8 && (vma & 0xfff) != 0xffc) | |
| 0a1b45a2 | 4127 | return false; |
| 4106101c MS |
4128 | |
| 4129 | if (_bfd_aarch64_erratum_843419_sequence_p (insn_1, insn_2, insn_3)) | |
| 4130 | { | |
| 4131 | *p_veneer_i = i + 8; | |
| 0a1b45a2 | 4132 | return true; |
| 4106101c MS |
4133 | } |
| 4134 | ||
| 4135 | if (span_end < i + 16) | |
| 0a1b45a2 | 4136 | return false; |
| 4106101c MS |
4137 | |
| 4138 | uint32_t insn_4 = bfd_getl32 (contents + i + 12); | |
| 4139 | ||
| 4140 | if (_bfd_aarch64_erratum_843419_sequence_p (insn_1, insn_2, insn_4)) | |
| 4141 | { | |
| 4142 | *p_veneer_i = i + 12; | |
| 0a1b45a2 | 4143 | return true; |
| 4106101c MS |
4144 | } |
| 4145 | ||
| 0a1b45a2 | 4146 | return false; |
| 4106101c MS |
4147 | } |
| 4148 | ||
| 4149 | ||
| 13f622ec MS |
4150 | /* Resize all stub sections. */ |
| 4151 | ||
| 4152 | static void | |
| 4153 | _bfd_aarch64_resize_stubs (struct elf_aarch64_link_hash_table *htab) | |
| 4154 | { | |
| 4155 | asection *section; | |
| 4156 | ||
| 4157 | /* OK, we've added some stubs. Find out the new size of the | |
| 4158 | stub sections. */ | |
| 4159 | for (section = htab->stub_bfd->sections; | |
| 4160 | section != NULL; section = section->next) | |
| 4161 | { | |
| 4162 | /* Ignore non-stub sections. */ | |
| 4163 | if (!strstr (section->name, STUB_SUFFIX)) | |
| 4164 | continue; | |
| 15b4f66b SN |
4165 | |
| 4166 | /* Add space for a branch. Add 8 bytes to keep section 8 byte aligned, | |
| 4167 | as long branch stubs contain a 64-bit address. */ | |
| 4168 | section->size = 8; | |
| 13f622ec MS |
4169 | } |
| 4170 | ||
| 4171 | bfd_hash_traverse (&htab->stub_hash_table, aarch64_size_one_stub, htab); | |
| 13f622ec | 4172 | |
| 61865519 MS |
4173 | for (section = htab->stub_bfd->sections; |
| 4174 | section != NULL; section = section->next) | |
| 4175 | { | |
| 4176 | if (!strstr (section->name, STUB_SUFFIX)) | |
| 4177 | continue; | |
| 4178 | ||
| 15b4f66b SN |
4179 | /* Empty stub section. */ |
| 4180 | if (section->size == 8) | |
| 4181 | section->size = 0; | |
| 4106101c MS |
4182 | |
| 4183 | /* Ensure all stub sections have a size which is a multiple of | |
| 4184 | 4096. This is important in order to ensure that the insertion | |
| 4185 | of stub sections does not in itself move existing code around | |
| 739b5c9c TC |
4186 | in such a way that new errata sequences are created. We only do this |
| 4187 | when the ADRP workaround is enabled. If only the ADR workaround is | |
| 4188 | enabled then the stubs workaround won't ever be used. */ | |
| 4189 | if (htab->fix_erratum_843419 & ERRAT_ADRP) | |
| 4106101c MS |
4190 | if (section->size) |
| 4191 | section->size = BFD_ALIGN (section->size, 0x1000); | |
| 4192 | } | |
| 4193 | } | |
| 4194 | ||
| 9a2ebffd | 4195 | /* Construct an erratum 843419 workaround stub name. */ |
| 4106101c MS |
4196 | |
| 4197 | static char * | |
| 4198 | _bfd_aarch64_erratum_843419_stub_name (asection *input_section, | |
| 4199 | bfd_vma offset) | |
| 4200 | { | |
| 4201 | const bfd_size_type len = 8 + 4 + 1 + 8 + 1 + 16 + 1; | |
| 4202 | char *stub_name = bfd_malloc (len); | |
| 4203 | ||
| 4204 | if (stub_name != NULL) | |
| b8281767 | 4205 | snprintf (stub_name, len, "e843419@%04x_%08x_%" PRIx64, |
| 4106101c MS |
4206 | input_section->owner->id, |
| 4207 | input_section->id, | |
| b8281767 | 4208 | (uint64_t) offset); |
| 4106101c MS |
4209 | return stub_name; |
| 4210 | } | |
| 4211 | ||
| 4212 | /* Build a stub_entry structure describing an 843419 fixup. | |
| 4213 | ||
| 4214 | The stub_entry constructed is populated with the bit pattern INSN | |
| 4215 | of the instruction located at OFFSET within input SECTION. | |
| 4216 | ||
| 4217 | Returns TRUE on success. */ | |
| 4218 | ||
| 0a1b45a2 | 4219 | static bool |
| 4106101c MS |
4220 | _bfd_aarch64_erratum_843419_fixup (uint32_t insn, |
| 4221 | bfd_vma adrp_offset, | |
| 4222 | bfd_vma ldst_offset, | |
| 4223 | asection *section, | |
| 4224 | struct bfd_link_info *info) | |
| 4225 | { | |
| 4226 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); | |
| 4227 | char *stub_name; | |
| 4228 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 4229 | ||
| 4230 | stub_name = _bfd_aarch64_erratum_843419_stub_name (section, ldst_offset); | |
| bb69498c | 4231 | if (stub_name == NULL) |
| 0a1b45a2 | 4232 | return false; |
| 4106101c | 4233 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
| 0a1b45a2 | 4234 | false, false); |
| 4106101c MS |
4235 | if (stub_entry) |
| 4236 | { | |
| 4237 | free (stub_name); | |
| 0a1b45a2 | 4238 | return true; |
| 4106101c MS |
4239 | } |
| 4240 | ||
| 4241 | /* We always place an 843419 workaround veneer in the stub section | |
| 4242 | attached to the input section in which an erratum sequence has | |
| 4243 | been found. This ensures that later in the link process (in | |
| 4244 | elfNN_aarch64_write_section) when we copy the veneered | |
| 4245 | instruction from the input section into the stub section the | |
| 4246 | copied instruction will have had any relocations applied to it. | |
| 4247 | If we placed workaround veneers in any other stub section then we | |
| 4248 | could not assume that all relocations have been processed on the | |
| 4249 | corresponding input section at the point we output the stub | |
| bb69498c | 4250 | section. */ |
| 4106101c MS |
4251 | |
| 4252 | stub_entry = _bfd_aarch64_add_stub_entry_after (stub_name, section, htab); | |
| 4253 | if (stub_entry == NULL) | |
| 4254 | { | |
| 4255 | free (stub_name); | |
| 0a1b45a2 | 4256 | return false; |
| 4106101c MS |
4257 | } |
| 4258 | ||
| 4259 | stub_entry->adrp_offset = adrp_offset; | |
| 4260 | stub_entry->target_value = ldst_offset; | |
| 4261 | stub_entry->target_section = section; | |
| 4262 | stub_entry->stub_type = aarch64_stub_erratum_843419_veneer; | |
| 4263 | stub_entry->veneered_insn = insn; | |
| 4264 | stub_entry->output_name = stub_name; | |
| 4265 | ||
| 0a1b45a2 | 4266 | return true; |
| 4106101c MS |
4267 | } |
| 4268 | ||
| 4269 | ||
| 4270 | /* Scan an input section looking for the signature of erratum 843419. | |
| 4271 | ||
| 4272 | Scans input SECTION in INPUT_BFD looking for erratum 843419 | |
| 4273 | signatures, for each signature found a stub_entry is created | |
| 4274 | describing the location of the erratum for subsequent fixup. | |
| 4275 | ||
| 4276 | Return TRUE on successful scan, FALSE on failure to scan. | |
| 4277 | */ | |
| 4278 | ||
| 0a1b45a2 | 4279 | static bool |
| 4106101c MS |
4280 | _bfd_aarch64_erratum_843419_scan (bfd *input_bfd, asection *section, |
| 4281 | struct bfd_link_info *info) | |
| 4282 | { | |
| 4283 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); | |
| 4284 | ||
| 4285 | if (htab == NULL) | |
| 0a1b45a2 | 4286 | return true; |
| 4106101c MS |
4287 | |
| 4288 | if (elf_section_type (section) != SHT_PROGBITS | |
| 4289 | || (elf_section_flags (section) & SHF_EXECINSTR) == 0 | |
| 4290 | || (section->flags & SEC_EXCLUDE) != 0 | |
| 4291 | || (section->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) | |
| 4292 | || (section->output_section == bfd_abs_section_ptr)) | |
| 0a1b45a2 | 4293 | return true; |
| 4106101c MS |
4294 | |
| 4295 | do | |
| 4296 | { | |
| 4297 | bfd_byte *contents = NULL; | |
| 4298 | struct _aarch64_elf_section_data *sec_data; | |
| 4299 | unsigned int span; | |
| 4300 | ||
| 4301 | if (elf_section_data (section)->this_hdr.contents != NULL) | |
| 4302 | contents = elf_section_data (section)->this_hdr.contents; | |
| 4303 | else if (! bfd_malloc_and_get_section (input_bfd, section, &contents)) | |
| 0a1b45a2 | 4304 | return false; |
| 4106101c MS |
4305 | |
| 4306 | sec_data = elf_aarch64_section_data (section); | |
| 4307 | ||
| ccf61261 NC |
4308 | if (sec_data->mapcount) |
| 4309 | qsort (sec_data->map, sec_data->mapcount, | |
| 4310 | sizeof (elf_aarch64_section_map), elf_aarch64_compare_mapping); | |
| 4106101c MS |
4311 | |
| 4312 | for (span = 0; span < sec_data->mapcount; span++) | |
| 4313 | { | |
| 4314 | unsigned int span_start = sec_data->map[span].vma; | |
| 4315 | unsigned int span_end = ((span == sec_data->mapcount - 1) | |
| 4316 | ? sec_data->map[0].vma + section->size | |
| 4317 | : sec_data->map[span + 1].vma); | |
| 4318 | unsigned int i; | |
| 4319 | char span_type = sec_data->map[span].type; | |
| 4320 | ||
| 4321 | if (span_type == 'd') | |
| 4322 | continue; | |
| 4323 | ||
| 4324 | for (i = span_start; i + 8 < span_end; i += 4) | |
| 4325 | { | |
| 4326 | bfd_vma vma = (section->output_section->vma | |
| 4327 | + section->output_offset | |
| 4328 | + i); | |
| 4329 | bfd_vma veneer_i; | |
| 4330 | ||
| 4331 | if (_bfd_aarch64_erratum_843419_p | |
| 4332 | (contents, vma, i, span_end, &veneer_i)) | |
| 4333 | { | |
| 4334 | uint32_t insn = bfd_getl32 (contents + veneer_i); | |
| 4335 | ||
| 4336 | if (!_bfd_aarch64_erratum_843419_fixup (insn, i, veneer_i, | |
| 4337 | section, info)) | |
| 0a1b45a2 | 4338 | return false; |
| 4106101c MS |
4339 | } |
| 4340 | } | |
| 4341 | } | |
| 4342 | ||
| 4343 | if (elf_section_data (section)->this_hdr.contents == NULL) | |
| 4344 | free (contents); | |
| 61865519 | 4345 | } |
| 4106101c MS |
4346 | while (0); |
| 4347 | ||
| 0a1b45a2 | 4348 | return true; |
| 61865519 | 4349 | } |
| 13f622ec | 4350 | |
| 4106101c | 4351 | |
| 557a2f28 | 4352 | /* Add stub entries for calls. |
| a06ea964 NC |
4353 | |
| 4354 | The basic idea here is to examine all the relocations looking for | |
| 4355 | PC-relative calls to a target that is unreachable with a "bl" | |
| 4356 | instruction. */ | |
| 4357 | ||
| 557a2f28 SN |
4358 | static bool |
| 4359 | _bfd_aarch64_add_call_stub_entries (bool *stub_changed, bfd *output_bfd, | |
| 4360 | struct bfd_link_info *info) | |
| 4361 | { | |
| 4362 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); | |
| 15b4f66b | 4363 | bool need_bti = elf_aarch64_bti_p (output_bfd); |
| 557a2f28 SN |
4364 | bfd *input_bfd; |
| 4365 | ||
| 4366 | for (input_bfd = info->input_bfds; input_bfd != NULL; | |
| 4367 | input_bfd = input_bfd->link.next) | |
| 4368 | { | |
| 4369 | Elf_Internal_Shdr *symtab_hdr; | |
| 4370 | asection *section; | |
| 4371 | Elf_Internal_Sym *local_syms = NULL; | |
| 4372 | ||
| 4373 | if (!is_aarch64_elf (input_bfd) | |
| 4374 | || (input_bfd->flags & BFD_LINKER_CREATED) != 0) | |
| 4375 | continue; | |
| 4376 | ||
| 4377 | /* We'll need the symbol table in a second. */ | |
| 4378 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
| 4379 | if (symtab_hdr->sh_info == 0) | |
| 4380 | continue; | |
| 4381 | ||
| 4382 | /* Walk over each section attached to the input bfd. */ | |
| 4383 | for (section = input_bfd->sections; | |
| 4384 | section != NULL; section = section->next) | |
| 4385 | { | |
| 4386 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
| 4387 | ||
| 4388 | /* If there aren't any relocs, then there's nothing more to do. */ | |
| 4389 | if ((section->flags & SEC_RELOC) == 0 | |
| 4390 | || section->reloc_count == 0 | |
| 4391 | || (section->flags & SEC_CODE) == 0) | |
| 4392 | continue; | |
| 4393 | ||
| 4394 | /* If this section is a link-once section that will be | |
| 4395 | discarded, then don't create any stubs. */ | |
| 4396 | if (section->output_section == NULL | |
| 4397 | || section->output_section->owner != output_bfd) | |
| 4398 | continue; | |
| 4399 | ||
| 4400 | /* Get the relocs. */ | |
| 4401 | internal_relocs | |
| 4402 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, | |
| 4403 | NULL, info->keep_memory); | |
| 4404 | if (internal_relocs == NULL) | |
| 4405 | goto error_ret_free_local; | |
| 4406 | ||
| 4407 | /* Now examine each relocation. */ | |
| 4408 | irela = internal_relocs; | |
| 4409 | irelaend = irela + section->reloc_count; | |
| 4410 | for (; irela < irelaend; irela++) | |
| 4411 | { | |
| 4412 | unsigned int r_type, r_indx; | |
| 4413 | enum elf_aarch64_stub_type stub_type; | |
| 4414 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 15b4f66b | 4415 | struct elf_aarch64_stub_hash_entry *stub_entry_bti; |
| 557a2f28 SN |
4416 | asection *sym_sec; |
| 4417 | bfd_vma sym_value; | |
| 4418 | bfd_vma destination; | |
| 4419 | struct elf_aarch64_link_hash_entry *hash; | |
| 4420 | const char *sym_name; | |
| 4421 | char *stub_name; | |
| 15b4f66b | 4422 | char *stub_name_bti; |
| 557a2f28 | 4423 | const asection *id_sec; |
| 15b4f66b | 4424 | const asection *id_sec_bti; |
| 557a2f28 SN |
4425 | unsigned char st_type; |
| 4426 | bfd_size_type len; | |
| 4427 | ||
| 4428 | r_type = ELFNN_R_TYPE (irela->r_info); | |
| 4429 | r_indx = ELFNN_R_SYM (irela->r_info); | |
| 4430 | ||
| 4431 | if (r_type >= (unsigned int) R_AARCH64_end) | |
| 4432 | { | |
| 4433 | bfd_set_error (bfd_error_bad_value); | |
| 4434 | error_ret_free_internal: | |
| 4435 | if (elf_section_data (section)->relocs == NULL) | |
| 4436 | free (internal_relocs); | |
| 4437 | goto error_ret_free_local; | |
| 4438 | } | |
| 4439 | ||
| 4440 | /* Only look for stubs on unconditional branch and | |
| 4441 | branch and link instructions. */ | |
| 4442 | if (r_type != (unsigned int) AARCH64_R (CALL26) | |
| 4443 | && r_type != (unsigned int) AARCH64_R (JUMP26)) | |
| 4444 | continue; | |
| 4445 | ||
| 4446 | /* Now determine the call target, its name, value, | |
| 4447 | section. */ | |
| 4448 | sym_sec = NULL; | |
| 4449 | sym_value = 0; | |
| 4450 | destination = 0; | |
| 4451 | hash = NULL; | |
| 4452 | sym_name = NULL; | |
| 4453 | if (r_indx < symtab_hdr->sh_info) | |
| 4454 | { | |
| 4455 | /* It's a local symbol. */ | |
| 4456 | Elf_Internal_Sym *sym; | |
| 4457 | Elf_Internal_Shdr *hdr; | |
| 4458 | ||
| 4459 | if (local_syms == NULL) | |
| 4460 | { | |
| 4461 | local_syms | |
| 4462 | = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 4463 | if (local_syms == NULL) | |
| 4464 | local_syms | |
| 4465 | = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
| 4466 | symtab_hdr->sh_info, 0, | |
| 4467 | NULL, NULL, NULL); | |
| 4468 | if (local_syms == NULL) | |
| 4469 | goto error_ret_free_internal; | |
| 4470 | } | |
| 4471 | ||
| 4472 | sym = local_syms + r_indx; | |
| 4473 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
| 4474 | sym_sec = hdr->bfd_section; | |
| 4475 | if (!sym_sec) | |
| 4476 | /* This is an undefined symbol. It can never | |
| 4477 | be resolved. */ | |
| 4478 | continue; | |
| 4479 | ||
| 4480 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
| 4481 | sym_value = sym->st_value; | |
| 4482 | destination = (sym_value + irela->r_addend | |
| 4483 | + sym_sec->output_offset | |
| 4484 | + sym_sec->output_section->vma); | |
| 4485 | st_type = ELF_ST_TYPE (sym->st_info); | |
| 4486 | sym_name | |
| 4487 | = bfd_elf_string_from_elf_section (input_bfd, | |
| 4488 | symtab_hdr->sh_link, | |
| 4489 | sym->st_name); | |
| 4490 | } | |
| 4491 | else | |
| 4492 | { | |
| 4493 | int e_indx; | |
| 4494 | ||
| 4495 | e_indx = r_indx - symtab_hdr->sh_info; | |
| 4496 | hash = ((struct elf_aarch64_link_hash_entry *) | |
| 4497 | elf_sym_hashes (input_bfd)[e_indx]); | |
| 4498 | ||
| 4499 | while (hash->root.root.type == bfd_link_hash_indirect | |
| 4500 | || hash->root.root.type == bfd_link_hash_warning) | |
| 4501 | hash = ((struct elf_aarch64_link_hash_entry *) | |
| 4502 | hash->root.root.u.i.link); | |
| 4503 | ||
| 4504 | if (hash->root.root.type == bfd_link_hash_defined | |
| 4505 | || hash->root.root.type == bfd_link_hash_defweak) | |
| 4506 | { | |
| 4507 | struct elf_aarch64_link_hash_table *globals = | |
| 4508 | elf_aarch64_hash_table (info); | |
| 4509 | sym_sec = hash->root.root.u.def.section; | |
| 4510 | sym_value = hash->root.root.u.def.value; | |
| 4511 | /* For a destination in a shared library, | |
| 4512 | use the PLT stub as target address to | |
| 4513 | decide whether a branch stub is | |
| 4514 | needed. */ | |
| 4515 | if (globals->root.splt != NULL && hash != NULL | |
| 4516 | && hash->root.plt.offset != (bfd_vma) - 1) | |
| 4517 | { | |
| 4518 | sym_sec = globals->root.splt; | |
| 4519 | sym_value = hash->root.plt.offset; | |
| 4520 | if (sym_sec->output_section != NULL) | |
| 4521 | destination = (sym_value | |
| 4522 | + sym_sec->output_offset | |
| 4523 | + sym_sec->output_section->vma); | |
| 4524 | } | |
| 4525 | else if (sym_sec->output_section != NULL) | |
| 4526 | destination = (sym_value + irela->r_addend | |
| 4527 | + sym_sec->output_offset | |
| 4528 | + sym_sec->output_section->vma); | |
| 4529 | } | |
| 4530 | else if (hash->root.root.type == bfd_link_hash_undefined | |
| 4531 | || (hash->root.root.type | |
| 4532 | == bfd_link_hash_undefweak)) | |
| 4533 | { | |
| 4534 | /* For a shared library, use the PLT stub as | |
| 4535 | target address to decide whether a long | |
| 4536 | branch stub is needed. | |
| 4537 | For absolute code, they cannot be handled. */ | |
| 4538 | struct elf_aarch64_link_hash_table *globals = | |
| 4539 | elf_aarch64_hash_table (info); | |
| 4540 | ||
| 4541 | if (globals->root.splt != NULL && hash != NULL | |
| 4542 | && hash->root.plt.offset != (bfd_vma) - 1) | |
| 4543 | { | |
| 4544 | sym_sec = globals->root.splt; | |
| 4545 | sym_value = hash->root.plt.offset; | |
| 4546 | if (sym_sec->output_section != NULL) | |
| 4547 | destination = (sym_value | |
| 4548 | + sym_sec->output_offset | |
| 4549 | + sym_sec->output_section->vma); | |
| 4550 | } | |
| 4551 | else | |
| 4552 | continue; | |
| 4553 | } | |
| 4554 | else | |
| 4555 | { | |
| 4556 | bfd_set_error (bfd_error_bad_value); | |
| 4557 | goto error_ret_free_internal; | |
| 4558 | } | |
| 4559 | st_type = ELF_ST_TYPE (hash->root.type); | |
| 4560 | sym_name = hash->root.root.root.string; | |
| 4561 | } | |
| 4562 | ||
| 4563 | /* Determine what (if any) linker stub is needed. */ | |
| 4564 | stub_type = aarch64_type_of_stub (section, irela, sym_sec, | |
| 4565 | st_type, destination); | |
| 4566 | if (stub_type == aarch64_stub_none) | |
| 4567 | continue; | |
| 4568 | ||
| 4569 | /* Support for grouping stub sections. */ | |
| 4570 | id_sec = htab->stub_group[section->id].link_sec; | |
| 4571 | ||
| 4572 | /* Get the name of this stub. */ | |
| 4573 | stub_name = elfNN_aarch64_stub_name (id_sec, sym_sec, hash, | |
| 4574 | irela); | |
| 4575 | if (!stub_name) | |
| 4576 | goto error_ret_free_internal; | |
| 4577 | ||
| 4578 | stub_entry = | |
| 4579 | aarch64_stub_hash_lookup (&htab->stub_hash_table, | |
| 4580 | stub_name, false, false); | |
| 4581 | if (stub_entry != NULL) | |
| 4582 | { | |
| 4583 | /* The proper stub has already been created. */ | |
| 4584 | free (stub_name); | |
| 4585 | ||
| 4586 | /* Always update this stub's target since it may have | |
| 4587 | changed after layout. */ | |
| 4588 | stub_entry->target_value = sym_value + irela->r_addend; | |
| 15b4f66b SN |
4589 | |
| 4590 | if (stub_entry->double_stub) | |
| 4591 | { | |
| 4592 | /* Update the target of both stubs. */ | |
| 4593 | ||
| 4594 | id_sec_bti = htab->stub_group[sym_sec->id].link_sec; | |
| 4595 | stub_name_bti = | |
| 4596 | elfNN_aarch64_stub_name (id_sec_bti, sym_sec, hash, | |
| 4597 | irela); | |
| 4598 | if (!stub_name_bti) | |
| 4599 | goto error_ret_free_internal; | |
| 4600 | stub_entry_bti = | |
| 4601 | aarch64_stub_hash_lookup (&htab->stub_hash_table, | |
| 4602 | stub_name_bti, false, false); | |
| 4603 | BFD_ASSERT (stub_entry_bti != NULL); | |
| 4604 | free (stub_name_bti); | |
| 4605 | stub_entry_bti->target_value = stub_entry->target_value; | |
| 4606 | stub_entry->target_value = stub_entry_bti->stub_offset; | |
| 4607 | } | |
| 557a2f28 SN |
4608 | continue; |
| 4609 | } | |
| 4610 | ||
| 4611 | stub_entry = _bfd_aarch64_add_stub_entry_in_group | |
| 4612 | (stub_name, section, htab); | |
| 4613 | if (stub_entry == NULL) | |
| 4614 | { | |
| 4615 | free (stub_name); | |
| 4616 | goto error_ret_free_internal; | |
| 4617 | } | |
| 4618 | ||
| 4619 | stub_entry->target_value = sym_value + irela->r_addend; | |
| 4620 | stub_entry->target_section = sym_sec; | |
| 4621 | stub_entry->stub_type = stub_type; | |
| 4622 | stub_entry->h = hash; | |
| 4623 | stub_entry->st_type = st_type; | |
| 4624 | ||
| 4625 | if (sym_name == NULL) | |
| 4626 | sym_name = "unnamed"; | |
| 4627 | len = sizeof (STUB_ENTRY_NAME) + strlen (sym_name); | |
| 4628 | stub_entry->output_name = bfd_alloc (htab->stub_bfd, len); | |
| 4629 | if (stub_entry->output_name == NULL) | |
| 4630 | { | |
| 4631 | free (stub_name); | |
| 4632 | goto error_ret_free_internal; | |
| 4633 | } | |
| 4634 | ||
| 4635 | snprintf (stub_entry->output_name, len, STUB_ENTRY_NAME, | |
| 4636 | sym_name); | |
| 4637 | ||
| 15b4f66b SN |
4638 | /* A stub with indirect jump may break BTI compatibility, so |
| 4639 | insert another stub with direct jump near the target then. */ | |
| 5834f36d | 4640 | if (need_bti && !aarch64_bti_stub_p (input_bfd, stub_entry)) |
| 15b4f66b SN |
4641 | { |
| 4642 | stub_entry->double_stub = true; | |
| 4643 | htab->has_double_stub = true; | |
| 4644 | id_sec_bti = htab->stub_group[sym_sec->id].link_sec; | |
| 4645 | stub_name_bti = | |
| 4646 | elfNN_aarch64_stub_name (id_sec_bti, sym_sec, hash, irela); | |
| 4647 | if (!stub_name_bti) | |
| 4648 | { | |
| 4649 | free (stub_name); | |
| 4650 | goto error_ret_free_internal; | |
| 4651 | } | |
| 4652 | ||
| 4653 | stub_entry_bti = | |
| 4654 | aarch64_stub_hash_lookup (&htab->stub_hash_table, | |
| 4655 | stub_name_bti, false, false); | |
| 4656 | if (stub_entry_bti == NULL) | |
| 4657 | stub_entry_bti = | |
| 4658 | _bfd_aarch64_add_stub_entry_in_group (stub_name_bti, | |
| 4659 | sym_sec, htab); | |
| 4660 | if (stub_entry_bti == NULL) | |
| 4661 | { | |
| 4662 | free (stub_name); | |
| 4663 | free (stub_name_bti); | |
| 4664 | goto error_ret_free_internal; | |
| 4665 | } | |
| 4666 | ||
| 4667 | stub_entry_bti->target_value = sym_value + irela->r_addend; | |
| 4668 | stub_entry_bti->target_section = sym_sec; | |
| 4669 | stub_entry_bti->stub_type = aarch64_stub_bti_direct_branch; | |
| 4670 | stub_entry_bti->h = hash; | |
| 4671 | stub_entry_bti->st_type = st_type; | |
| 4672 | ||
| 4673 | len = sizeof (BTI_STUB_ENTRY_NAME) + strlen (sym_name); | |
| 4674 | stub_entry_bti->output_name = bfd_alloc (htab->stub_bfd, len); | |
| 4675 | if (stub_entry_bti->output_name == NULL) | |
| 4676 | { | |
| 4677 | free (stub_name); | |
| 4678 | free (stub_name_bti); | |
| 4679 | goto error_ret_free_internal; | |
| 4680 | } | |
| 4681 | snprintf (stub_entry_bti->output_name, len, | |
| 4682 | BTI_STUB_ENTRY_NAME, sym_name); | |
| 4683 | ||
| 4684 | /* Update the indirect call stub to target the BTI stub. */ | |
| 4685 | stub_entry->target_value = 0; | |
| 4686 | stub_entry->target_section = stub_entry_bti->stub_sec; | |
| 4687 | stub_entry->stub_type = stub_type; | |
| 4688 | stub_entry->h = NULL; | |
| 4689 | stub_entry->st_type = STT_FUNC; | |
| 4690 | } | |
| 4691 | ||
| 557a2f28 SN |
4692 | *stub_changed = true; |
| 4693 | } | |
| 4694 | ||
| 4695 | /* We're done with the internal relocs, free them. */ | |
| 4696 | if (elf_section_data (section)->relocs == NULL) | |
| 4697 | free (internal_relocs); | |
| 4698 | } | |
| 4699 | } | |
| 4700 | return true; | |
| 4701 | error_ret_free_local: | |
| 4702 | return false; | |
| 4703 | } | |
| 4704 | ||
| 4705 | ||
| 4706 | /* Determine and set the size of the stub section for a final link. */ | |
| 4707 | ||
| 0a1b45a2 | 4708 | bool |
| cec5225b | 4709 | elfNN_aarch64_size_stubs (bfd *output_bfd, |
| a06ea964 NC |
4710 | bfd *stub_bfd, |
| 4711 | struct bfd_link_info *info, | |
| 4712 | bfd_signed_vma group_size, | |
| 4713 | asection * (*add_stub_section) (const char *, | |
| 4714 | asection *), | |
| 4715 | void (*layout_sections_again) (void)) | |
| 4716 | { | |
| 4717 | bfd_size_type stub_group_size; | |
| 0a1b45a2 | 4718 | bool stubs_always_before_branch; |
| cec5225b | 4719 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); |
| 68fcca92 | 4720 | unsigned int num_erratum_835769_fixes = 0; |
| a06ea964 NC |
4721 | |
| 4722 | /* Propagate mach to stub bfd, because it may not have been | |
| 4723 | finalized when we created stub_bfd. */ | |
| 4724 | bfd_set_arch_mach (stub_bfd, bfd_get_arch (output_bfd), | |
| 4725 | bfd_get_mach (output_bfd)); | |
| 4726 | ||
| 4727 | /* Stash our params away. */ | |
| 4728 | htab->stub_bfd = stub_bfd; | |
| 4729 | htab->add_stub_section = add_stub_section; | |
| 4730 | htab->layout_sections_again = layout_sections_again; | |
| 4731 | stubs_always_before_branch = group_size < 0; | |
| 4732 | if (group_size < 0) | |
| 4733 | stub_group_size = -group_size; | |
| 4734 | else | |
| 4735 | stub_group_size = group_size; | |
| 4736 | ||
| 4737 | if (stub_group_size == 1) | |
| 4738 | { | |
| 4739 | /* Default values. */ | |
| b9eead84 | 4740 | /* AArch64 branch range is +-128MB. The value used is 1MB less. */ |
| a06ea964 NC |
4741 | stub_group_size = 127 * 1024 * 1024; |
| 4742 | } | |
| 4743 | ||
| 4744 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
| 4745 | ||
| 4106101c MS |
4746 | (*htab->layout_sections_again) (); |
| 4747 | ||
| 5421cc6e MS |
4748 | if (htab->fix_erratum_835769) |
| 4749 | { | |
| 4750 | bfd *input_bfd; | |
| 4751 | ||
| 4752 | for (input_bfd = info->input_bfds; | |
| 4753 | input_bfd != NULL; input_bfd = input_bfd->link.next) | |
| 8c803a2d AM |
4754 | { |
| 4755 | if (!is_aarch64_elf (input_bfd) | |
| 4756 | || (input_bfd->flags & BFD_LINKER_CREATED) != 0) | |
| 4757 | continue; | |
| 4758 | ||
| 4759 | if (!_bfd_aarch64_erratum_835769_scan (input_bfd, info, | |
| 4760 | &num_erratum_835769_fixes)) | |
| 0a1b45a2 | 4761 | return false; |
| 8c803a2d | 4762 | } |
| 5421cc6e | 4763 | |
| 4106101c MS |
4764 | _bfd_aarch64_resize_stubs (htab); |
| 4765 | (*htab->layout_sections_again) (); | |
| 4766 | } | |
| 4767 | ||
| 739b5c9c | 4768 | if (htab->fix_erratum_843419 != ERRAT_NONE) |
| 4106101c MS |
4769 | { |
| 4770 | bfd *input_bfd; | |
| 4771 | ||
| 4772 | for (input_bfd = info->input_bfds; | |
| 4773 | input_bfd != NULL; | |
| 4774 | input_bfd = input_bfd->link.next) | |
| 4775 | { | |
| 4776 | asection *section; | |
| 4777 | ||
| 8c803a2d AM |
4778 | if (!is_aarch64_elf (input_bfd) |
| 4779 | || (input_bfd->flags & BFD_LINKER_CREATED) != 0) | |
| 4780 | continue; | |
| 4781 | ||
| 4106101c MS |
4782 | for (section = input_bfd->sections; |
| 4783 | section != NULL; | |
| 4784 | section = section->next) | |
| 4785 | if (!_bfd_aarch64_erratum_843419_scan (input_bfd, section, info)) | |
| 0a1b45a2 | 4786 | return false; |
| 4106101c MS |
4787 | } |
| 4788 | ||
| 4789 | _bfd_aarch64_resize_stubs (htab); | |
| 4790 | (*htab->layout_sections_again) (); | |
| 5421cc6e MS |
4791 | } |
| 4792 | ||
| 557a2f28 | 4793 | for (;;) |
| a06ea964 | 4794 | { |
| 557a2f28 | 4795 | bool stub_changed = false; |
| a06ea964 | 4796 | |
| 557a2f28 SN |
4797 | if (!_bfd_aarch64_add_call_stub_entries (&stub_changed, output_bfd, info)) |
| 4798 | return false; | |
| a06ea964 NC |
4799 | |
| 4800 | if (!stub_changed) | |
| 557a2f28 | 4801 | return true; |
| a06ea964 | 4802 | |
| 13f622ec | 4803 | _bfd_aarch64_resize_stubs (htab); |
| a06ea964 | 4804 | (*htab->layout_sections_again) (); |
| a06ea964 | 4805 | } |
| a06ea964 NC |
4806 | } |
| 4807 | ||
| 4808 | /* Build all the stubs associated with the current output file. The | |
| 4809 | stubs are kept in a hash table attached to the main linker hash | |
| 4810 | table. We also set up the .plt entries for statically linked PIC | |
| 4811 | functions here. This function is called via aarch64_elf_finish in the | |
| 4812 | linker. */ | |
| 4813 | ||
| 0a1b45a2 | 4814 | bool |
| cec5225b | 4815 | elfNN_aarch64_build_stubs (struct bfd_link_info *info) |
| a06ea964 NC |
4816 | { |
| 4817 | asection *stub_sec; | |
| 4818 | struct bfd_hash_table *table; | |
| cec5225b | 4819 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 | 4820 | |
| cec5225b | 4821 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
4822 | |
| 4823 | for (stub_sec = htab->stub_bfd->sections; | |
| 4824 | stub_sec != NULL; stub_sec = stub_sec->next) | |
| 4825 | { | |
| 4826 | bfd_size_type size; | |
| 4827 | ||
| 4828 | /* Ignore non-stub sections. */ | |
| 4829 | if (!strstr (stub_sec->name, STUB_SUFFIX)) | |
| 4830 | continue; | |
| 4831 | ||
| 4832 | /* Allocate memory to hold the linker stubs. */ | |
| 4833 | size = stub_sec->size; | |
| 4834 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); | |
| 4835 | if (stub_sec->contents == NULL && size != 0) | |
| 0a1b45a2 | 4836 | return false; |
| a06ea964 | 4837 | stub_sec->size = 0; |
| 61865519 | 4838 | |
| 9a2ebffd JW |
4839 | /* Add a branch around the stub section, and a nop, to keep it 8 byte |
| 4840 | aligned, as long branch stubs contain a 64-bit address. */ | |
| 61865519 | 4841 | bfd_putl32 (0x14000000 | (size >> 2), stub_sec->contents); |
| 9a2ebffd JW |
4842 | bfd_putl32 (INSN_NOP, stub_sec->contents + 4); |
| 4843 | stub_sec->size += 8; | |
| a06ea964 NC |
4844 | } |
| 4845 | ||
| 4846 | /* Build the stubs as directed by the stub hash table. */ | |
| 4847 | table = &htab->stub_hash_table; | |
| 4848 | bfd_hash_traverse (table, aarch64_build_one_stub, info); | |
| 4849 | ||
| 0a1b45a2 | 4850 | return true; |
| a06ea964 NC |
4851 | } |
| 4852 | ||
| 4853 | ||
| 4854 | /* Add an entry to the code/data map for section SEC. */ | |
| 4855 | ||
| 4856 | static void | |
| cec5225b | 4857 | elfNN_aarch64_section_map_add (asection *sec, char type, bfd_vma vma) |
| a06ea964 NC |
4858 | { |
| 4859 | struct _aarch64_elf_section_data *sec_data = | |
| cec5225b | 4860 | elf_aarch64_section_data (sec); |
| a06ea964 NC |
4861 | unsigned int newidx; |
| 4862 | ||
| 4863 | if (sec_data->map == NULL) | |
| 4864 | { | |
| cec5225b | 4865 | sec_data->map = bfd_malloc (sizeof (elf_aarch64_section_map)); |
| a06ea964 NC |
4866 | sec_data->mapcount = 0; |
| 4867 | sec_data->mapsize = 1; | |
| 4868 | } | |
| 4869 | ||
| 4870 | newidx = sec_data->mapcount++; | |
| 4871 | ||
| 4872 | if (sec_data->mapcount > sec_data->mapsize) | |
| 4873 | { | |
| 4874 | sec_data->mapsize *= 2; | |
| 4875 | sec_data->map = bfd_realloc_or_free | |
| cec5225b | 4876 | (sec_data->map, sec_data->mapsize * sizeof (elf_aarch64_section_map)); |
| a06ea964 NC |
4877 | } |
| 4878 | ||
| 4879 | if (sec_data->map) | |
| 4880 | { | |
| 4881 | sec_data->map[newidx].vma = vma; | |
| 4882 | sec_data->map[newidx].type = type; | |
| 4883 | } | |
| 4884 | } | |
| 4885 | ||
| 4886 | ||
| 4887 | /* Initialise maps of insn/data for input BFDs. */ | |
| 4888 | void | |
| cec5225b | 4889 | bfd_elfNN_aarch64_init_maps (bfd *abfd) |
| a06ea964 NC |
4890 | { |
| 4891 | Elf_Internal_Sym *isymbuf; | |
| 4892 | Elf_Internal_Shdr *hdr; | |
| 4893 | unsigned int i, localsyms; | |
| 4894 | ||
| 4895 | /* Make sure that we are dealing with an AArch64 elf binary. */ | |
| 4896 | if (!is_aarch64_elf (abfd)) | |
| 4897 | return; | |
| 4898 | ||
| 4899 | if ((abfd->flags & DYNAMIC) != 0) | |
| 68fcca92 | 4900 | return; |
| a06ea964 NC |
4901 | |
| 4902 | hdr = &elf_symtab_hdr (abfd); | |
| 4903 | localsyms = hdr->sh_info; | |
| 4904 | ||
| 4905 | /* Obtain a buffer full of symbols for this BFD. The hdr->sh_info field | |
| 4906 | should contain the number of local symbols, which should come before any | |
| 4907 | global symbols. Mapping symbols are always local. */ | |
| 4908 | isymbuf = bfd_elf_get_elf_syms (abfd, hdr, localsyms, 0, NULL, NULL, NULL); | |
| 4909 | ||
| 4910 | /* No internal symbols read? Skip this BFD. */ | |
| 4911 | if (isymbuf == NULL) | |
| 4912 | return; | |
| 4913 | ||
| 4914 | for (i = 0; i < localsyms; i++) | |
| 4915 | { | |
| 4916 | Elf_Internal_Sym *isym = &isymbuf[i]; | |
| 4917 | asection *sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 4918 | const char *name; | |
| 4919 | ||
| 4920 | if (sec != NULL && ELF_ST_BIND (isym->st_info) == STB_LOCAL) | |
| 4921 | { | |
| 4922 | name = bfd_elf_string_from_elf_section (abfd, | |
| 4923 | hdr->sh_link, | |
| 4924 | isym->st_name); | |
| 4925 | ||
| 4926 | if (bfd_is_aarch64_special_symbol_name | |
| 4927 | (name, BFD_AARCH64_SPECIAL_SYM_TYPE_MAP)) | |
| cec5225b | 4928 | elfNN_aarch64_section_map_add (sec, name[1], isym->st_value); |
| a06ea964 NC |
4929 | } |
| 4930 | } | |
| 4931 | } | |
| 4932 | ||
| 37c18eed SD |
4933 | static void |
| 4934 | setup_plt_values (struct bfd_link_info *link_info, | |
| 4935 | aarch64_plt_type plt_type) | |
| 4936 | { | |
| 4937 | struct elf_aarch64_link_hash_table *globals; | |
| 4938 | globals = elf_aarch64_hash_table (link_info); | |
| 4939 | ||
| 1dbade74 SD |
4940 | if (plt_type == PLT_BTI_PAC) |
| 4941 | { | |
| 68bb0359 | 4942 | globals->plt0_entry = elfNN_aarch64_small_plt0_bti_entry; |
| 1dbade74 SD |
4943 | |
| 4944 | /* Only in ET_EXEC we need PLTn with BTI. */ | |
| 4945 | if (bfd_link_pde (link_info)) | |
| 4946 | { | |
| 4947 | globals->plt_entry_size = PLT_BTI_PAC_SMALL_ENTRY_SIZE; | |
| 4948 | globals->plt_entry = elfNN_aarch64_small_plt_bti_pac_entry; | |
| 4949 | } | |
| 4950 | else | |
| 4951 | { | |
| 4952 | globals->plt_entry_size = PLT_PAC_SMALL_ENTRY_SIZE; | |
| 4953 | globals->plt_entry = elfNN_aarch64_small_plt_pac_entry; | |
| 4954 | } | |
| 4955 | } | |
| 4956 | else if (plt_type == PLT_BTI) | |
| 37c18eed | 4957 | { |
| 37c18eed | 4958 | globals->plt0_entry = elfNN_aarch64_small_plt0_bti_entry; |
| 37c18eed SD |
4959 | |
| 4960 | /* Only in ET_EXEC we need PLTn with BTI. */ | |
| 4961 | if (bfd_link_pde (link_info)) | |
| 4962 | { | |
| 4963 | globals->plt_entry_size = PLT_BTI_SMALL_ENTRY_SIZE; | |
| 4964 | globals->plt_entry = elfNN_aarch64_small_plt_bti_entry; | |
| 4965 | } | |
| 4966 | } | |
| 1dbade74 SD |
4967 | else if (plt_type == PLT_PAC) |
| 4968 | { | |
| 1dbade74 SD |
4969 | globals->plt_entry_size = PLT_PAC_SMALL_ENTRY_SIZE; |
| 4970 | globals->plt_entry = elfNN_aarch64_small_plt_pac_entry; | |
| 4971 | } | |
| 37c18eed SD |
4972 | } |
| 4973 | ||
| a06ea964 NC |
4974 | /* Set option values needed during linking. */ |
| 4975 | void | |
| cec5225b | 4976 | bfd_elfNN_aarch64_set_options (struct bfd *output_bfd, |
| a06ea964 NC |
4977 | struct bfd_link_info *link_info, |
| 4978 | int no_enum_warn, | |
| 68fcca92 | 4979 | int no_wchar_warn, int pic_veneer, |
| 4106101c | 4980 | int fix_erratum_835769, |
| 739b5c9c | 4981 | erratum_84319_opts fix_erratum_843419, |
| 37c18eed SD |
4982 | int no_apply_dynamic_relocs, |
| 4983 | aarch64_bti_pac_info bp_info) | |
| a06ea964 | 4984 | { |
| cec5225b | 4985 | struct elf_aarch64_link_hash_table *globals; |
| a06ea964 | 4986 | |
| cec5225b | 4987 | globals = elf_aarch64_hash_table (link_info); |
| a06ea964 | 4988 | globals->pic_veneer = pic_veneer; |
| 68fcca92 | 4989 | globals->fix_erratum_835769 = fix_erratum_835769; |
| 739b5c9c TC |
4990 | /* If the default options are used, then ERRAT_ADR will be set by default |
| 4991 | which will enable the ADRP->ADR workaround for the erratum 843419 | |
| 4992 | workaround. */ | |
| 4106101c | 4993 | globals->fix_erratum_843419 = fix_erratum_843419; |
| 1f56df9d | 4994 | globals->no_apply_dynamic_relocs = no_apply_dynamic_relocs; |
| a06ea964 NC |
4995 | |
| 4996 | BFD_ASSERT (is_aarch64_elf (output_bfd)); | |
| 4997 | elf_aarch64_tdata (output_bfd)->no_enum_size_warning = no_enum_warn; | |
| 4998 | elf_aarch64_tdata (output_bfd)->no_wchar_size_warning = no_wchar_warn; | |
| 37c18eed SD |
4999 | |
| 5000 | switch (bp_info.bti_type) | |
| 5001 | { | |
| 5002 | case BTI_WARN: | |
| 5003 | elf_aarch64_tdata (output_bfd)->no_bti_warn = 0; | |
| 5004 | elf_aarch64_tdata (output_bfd)->gnu_and_prop | |
| 5005 | |= GNU_PROPERTY_AARCH64_FEATURE_1_BTI; | |
| 5006 | break; | |
| 5007 | ||
| 5008 | default: | |
| 5009 | break; | |
| 5010 | } | |
| 5011 | elf_aarch64_tdata (output_bfd)->plt_type = bp_info.plt_type; | |
| 5012 | setup_plt_values (link_info, bp_info.plt_type); | |
| a06ea964 NC |
5013 | } |
| 5014 | ||
| a06ea964 NC |
5015 | static bfd_vma |
| 5016 | aarch64_calculate_got_entry_vma (struct elf_link_hash_entry *h, | |
| cec5225b | 5017 | struct elf_aarch64_link_hash_table |
| a06ea964 NC |
5018 | *globals, struct bfd_link_info *info, |
| 5019 | bfd_vma value, bfd *output_bfd, | |
| 0a1b45a2 | 5020 | bool *unresolved_reloc_p) |
| a06ea964 NC |
5021 | { |
| 5022 | bfd_vma off = (bfd_vma) - 1; | |
| 5023 | asection *basegot = globals->root.sgot; | |
| 0a1b45a2 | 5024 | bool dyn = globals->root.dynamic_sections_created; |
| a06ea964 NC |
5025 | |
| 5026 | if (h != NULL) | |
| 5027 | { | |
| a6bb11b2 | 5028 | BFD_ASSERT (basegot != NULL); |
| a06ea964 NC |
5029 | off = h->got.offset; |
| 5030 | BFD_ASSERT (off != (bfd_vma) - 1); | |
| 0e1862bb L |
5031 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) |
| 5032 | || (bfd_link_pic (info) | |
| a06ea964 NC |
5033 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
| 5034 | || (ELF_ST_VISIBILITY (h->other) | |
| 5035 | && h->root.type == bfd_link_hash_undefweak)) | |
| 5036 | { | |
| 5037 | /* This is actually a static link, or it is a -Bsymbolic link | |
| 5038 | and the symbol is defined locally. We must initialize this | |
| 5039 | entry in the global offset table. Since the offset must | |
| a6bb11b2 YZ |
5040 | always be a multiple of 8 (4 in the case of ILP32), we use |
| 5041 | the least significant bit to record whether we have | |
| 5042 | initialized it already. | |
| a06ea964 NC |
5043 | When doing a dynamic link, we create a .rel(a).got relocation |
| 5044 | entry to initialize the value. This is done in the | |
| 5045 | finish_dynamic_symbol routine. */ | |
| 5046 | if ((off & 1) != 0) | |
| 5047 | off &= ~1; | |
| 5048 | else | |
| 5049 | { | |
| cec5225b | 5050 | bfd_put_NN (output_bfd, value, basegot->contents + off); |
| a06ea964 NC |
5051 | h->got.offset |= 1; |
| 5052 | } | |
| 5053 | } | |
| 5054 | else | |
| 0a1b45a2 | 5055 | *unresolved_reloc_p = false; |
| a06ea964 NC |
5056 | |
| 5057 | off = off + basegot->output_section->vma + basegot->output_offset; | |
| 5058 | } | |
| 5059 | ||
| 5060 | return off; | |
| 5061 | } | |
| 5062 | ||
| 5063 | /* Change R_TYPE to a more efficient access model where possible, | |
| 5064 | return the new reloc type. */ | |
| 5065 | ||
| a6bb11b2 YZ |
5066 | static bfd_reloc_code_real_type |
| 5067 | aarch64_tls_transition_without_check (bfd_reloc_code_real_type r_type, | |
| 976f1663 MM |
5068 | struct elf_link_hash_entry *h, |
| 5069 | struct bfd_link_info *info) | |
| a06ea964 | 5070 | { |
| 976f1663 MM |
5071 | bool local_exec = bfd_link_executable (info) |
| 5072 | && SYMBOL_REFERENCES_LOCAL (info, h); | |
| a6bb11b2 | 5073 | |
| a06ea964 NC |
5074 | switch (r_type) |
| 5075 | { | |
| a6bb11b2 | 5076 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| ce336788 | 5077 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 976f1663 | 5078 | return (local_exec |
| a6bb11b2 YZ |
5079 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 |
| 5080 | : BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21); | |
| 5081 | ||
| 389b8029 | 5082 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| 976f1663 | 5083 | return (local_exec |
| 389b8029 MS |
5084 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC |
| 5085 | : r_type); | |
| 5086 | ||
| 1ada945d | 5087 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 976f1663 | 5088 | return (local_exec |
| 1ada945d MS |
5089 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 |
| 5090 | : BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19); | |
| 5091 | ||
| 0484b454 | 5092 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| 976f1663 | 5093 | return (local_exec |
| 0484b454 RL |
5094 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC |
| 5095 | : BFD_RELOC_AARCH64_NONE); | |
| 5096 | ||
| 5097 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: | |
| 976f1663 | 5098 | return (local_exec |
| 0484b454 RL |
5099 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC |
| 5100 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC); | |
| 5101 | ||
| 5102 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| 976f1663 | 5103 | return (local_exec |
| 0484b454 RL |
5104 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2 |
| 5105 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1); | |
| 5106 | ||
| a6bb11b2 | 5107 | case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC: |
| ce336788 | 5108 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| 976f1663 | 5109 | return (local_exec |
| a6bb11b2 YZ |
5110 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC |
| 5111 | : BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC); | |
| 5112 | ||
| 5113 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: | |
| 976f1663 | 5114 | return local_exec ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 : r_type; |
| a6bb11b2 YZ |
5115 | |
| 5116 | case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC: | |
| 976f1663 | 5117 | return local_exec ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC : r_type; |
| a6bb11b2 | 5118 | |
| 043bf05a MS |
5119 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 5120 | return r_type; | |
| 5121 | ||
| 3c12b054 | 5122 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 976f1663 | 5123 | return (local_exec |
| 3c12b054 MS |
5124 | ? BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12 |
| 5125 | : BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19); | |
| 5126 | ||
| 0484b454 | 5127 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| f955cccf | 5128 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 5129 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| a06ea964 | 5130 | /* Instructions with these relocations will become NOPs. */ |
| a6bb11b2 YZ |
5131 | return BFD_RELOC_AARCH64_NONE; |
| 5132 | ||
| 259364ad JW |
5133 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| 5134 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: | |
| 5135 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: | |
| 976f1663 | 5136 | return local_exec ? BFD_RELOC_AARCH64_NONE : r_type; |
| 259364ad | 5137 | |
| ac734732 RL |
5138 | #if ARCH_SIZE == 64 |
| 5139 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: | |
| 976f1663 | 5140 | return local_exec |
| ac734732 RL |
5141 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC |
| 5142 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC; | |
| 5143 | ||
| 5144 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: | |
| 976f1663 | 5145 | return local_exec |
| ac734732 RL |
5146 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2 |
| 5147 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1; | |
| 5148 | #endif | |
| 5149 | ||
| a6bb11b2 YZ |
5150 | default: |
| 5151 | break; | |
| a06ea964 NC |
5152 | } |
| 5153 | ||
| 5154 | return r_type; | |
| 5155 | } | |
| 5156 | ||
| 5157 | static unsigned int | |
| a6bb11b2 | 5158 | aarch64_reloc_got_type (bfd_reloc_code_real_type r_type) |
| a06ea964 NC |
5159 | { |
| 5160 | switch (r_type) | |
| 5161 | { | |
| a6bb11b2 YZ |
5162 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 5163 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: | |
| 7018c030 | 5164 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| ce336788 | 5165 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| a2e1db00 | 5166 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 99ad26cb | 5167 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| ce336788 | 5168 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| dc8008f5 | 5169 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 5170 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| a06ea964 NC |
5171 | return GOT_NORMAL; |
| 5172 | ||
| ce336788 | 5173 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a6bb11b2 | 5174 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 5175 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 7ba7cfe4 | 5176 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 5177 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| 73f925cc | 5178 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 5179 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 5180 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
5181 | return GOT_TLS_GD; |
| 5182 | ||
| 0484b454 | 5183 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| f955cccf | 5184 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 5185 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 5186 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| a6bb11b2 | 5187 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| a6bb11b2 | 5188 | case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC: |
| f955cccf | 5189 | case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12: |
| 1ada945d | 5190 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 0484b454 RL |
5191 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| 5192 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: | |
| 5193 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| a06ea964 NC |
5194 | return GOT_TLSDESC_GD; |
| 5195 | ||
| a6bb11b2 | 5196 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a6bb11b2 | 5197 | case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: |
| ce336788 | 5198 | case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: |
| 043bf05a | 5199 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 3b957e5b RL |
5200 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 5201 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| a06ea964 NC |
5202 | return GOT_TLS_IE; |
| 5203 | ||
| a6bb11b2 YZ |
5204 | default: |
| 5205 | break; | |
| a06ea964 NC |
5206 | } |
| 5207 | return GOT_UNKNOWN; | |
| 5208 | } | |
| 5209 | ||
| 0a1b45a2 | 5210 | static bool |
| a06ea964 NC |
5211 | aarch64_can_relax_tls (bfd *input_bfd, |
| 5212 | struct bfd_link_info *info, | |
| a6bb11b2 | 5213 | bfd_reloc_code_real_type r_type, |
| a06ea964 NC |
5214 | struct elf_link_hash_entry *h, |
| 5215 | unsigned long r_symndx) | |
| 5216 | { | |
| 5217 | unsigned int symbol_got_type; | |
| 5218 | unsigned int reloc_got_type; | |
| 5219 | ||
| 9331eea1 | 5220 | if (! IS_AARCH64_TLS_RELAX_RELOC (r_type)) |
| 0a1b45a2 | 5221 | return false; |
| a06ea964 | 5222 | |
| cec5225b | 5223 | symbol_got_type = elfNN_aarch64_symbol_got_type (h, input_bfd, r_symndx); |
| a06ea964 NC |
5224 | reloc_got_type = aarch64_reloc_got_type (r_type); |
| 5225 | ||
| 5226 | if (symbol_got_type == GOT_TLS_IE && GOT_TLS_GD_ANY_P (reloc_got_type)) | |
| 0a1b45a2 | 5227 | return true; |
| a06ea964 | 5228 | |
| 6dda7875 | 5229 | if (!bfd_link_executable (info)) |
| 0a1b45a2 | 5230 | return false; |
| a06ea964 NC |
5231 | |
| 5232 | if (h && h->root.type == bfd_link_hash_undefweak) | |
| 0a1b45a2 | 5233 | return false; |
| a06ea964 | 5234 | |
| 0a1b45a2 | 5235 | return true; |
| a06ea964 NC |
5236 | } |
| 5237 | ||
| a6bb11b2 YZ |
5238 | /* Given the relocation code R_TYPE, return the relaxed bfd reloc |
| 5239 | enumerator. */ | |
| 5240 | ||
| 5241 | static bfd_reloc_code_real_type | |
| a06ea964 NC |
5242 | aarch64_tls_transition (bfd *input_bfd, |
| 5243 | struct bfd_link_info *info, | |
| 5244 | unsigned int r_type, | |
| 5245 | struct elf_link_hash_entry *h, | |
| 5246 | unsigned long r_symndx) | |
| 5247 | { | |
| a6bb11b2 | 5248 | bfd_reloc_code_real_type bfd_r_type |
| 0aa13fee | 5249 | = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| a06ea964 | 5250 | |
| a6bb11b2 YZ |
5251 | if (! aarch64_can_relax_tls (input_bfd, info, bfd_r_type, h, r_symndx)) |
| 5252 | return bfd_r_type; | |
| 5253 | ||
| 976f1663 | 5254 | return aarch64_tls_transition_without_check (bfd_r_type, h, info); |
| a06ea964 NC |
5255 | } |
| 5256 | ||
| 5257 | /* Return the base VMA address which should be subtracted from real addresses | |
| a6bb11b2 | 5258 | when resolving R_AARCH64_TLS_DTPREL relocation. */ |
| a06ea964 NC |
5259 | |
| 5260 | static bfd_vma | |
| 5261 | dtpoff_base (struct bfd_link_info *info) | |
| 5262 | { | |
| 5263 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
| 5264 | BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL); | |
| 5265 | return elf_hash_table (info)->tls_sec->vma; | |
| 5266 | } | |
| 5267 | ||
| a06ea964 NC |
5268 | /* Return the base VMA address which should be subtracted from real addresses |
| 5269 | when resolving R_AARCH64_TLS_GOTTPREL64 relocations. */ | |
| 5270 | ||
| 5271 | static bfd_vma | |
| 5272 | tpoff_base (struct bfd_link_info *info) | |
| 5273 | { | |
| 5274 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 5275 | ||
| 5276 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
| ac21917f | 5277 | BFD_ASSERT (htab->tls_sec != NULL); |
| a06ea964 NC |
5278 | |
| 5279 | bfd_vma base = align_power ((bfd_vma) TCB_SIZE, | |
| 5280 | htab->tls_sec->alignment_power); | |
| 5281 | return htab->tls_sec->vma - base; | |
| 5282 | } | |
| 5283 | ||
| 5284 | static bfd_vma * | |
| 5285 | symbol_got_offset_ref (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5286 | unsigned long r_symndx) | |
| 5287 | { | |
| 5288 | /* Calculate the address of the GOT entry for symbol | |
| 5289 | referred to in h. */ | |
| 5290 | if (h != NULL) | |
| 5291 | return &h->got.offset; | |
| 5292 | else | |
| 5293 | { | |
| 5294 | /* local symbol */ | |
| 5295 | struct elf_aarch64_local_symbol *l; | |
| 5296 | ||
| cec5225b | 5297 | l = elf_aarch64_locals (input_bfd); |
| a06ea964 NC |
5298 | return &l[r_symndx].got_offset; |
| 5299 | } | |
| 5300 | } | |
| 5301 | ||
| 5302 | static void | |
| 5303 | symbol_got_offset_mark (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5304 | unsigned long r_symndx) | |
| 5305 | { | |
| 5306 | bfd_vma *p; | |
| 5307 | p = symbol_got_offset_ref (input_bfd, h, r_symndx); | |
| 5308 | *p |= 1; | |
| 5309 | } | |
| 5310 | ||
| 5311 | static int | |
| 5312 | symbol_got_offset_mark_p (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5313 | unsigned long r_symndx) | |
| 5314 | { | |
| 5315 | bfd_vma value; | |
| 5316 | value = * symbol_got_offset_ref (input_bfd, h, r_symndx); | |
| 5317 | return value & 1; | |
| 5318 | } | |
| 5319 | ||
| 5320 | static bfd_vma | |
| 5321 | symbol_got_offset (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5322 | unsigned long r_symndx) | |
| 5323 | { | |
| 5324 | bfd_vma value; | |
| 5325 | value = * symbol_got_offset_ref (input_bfd, h, r_symndx); | |
| 5326 | value &= ~1; | |
| 5327 | return value; | |
| 5328 | } | |
| 5329 | ||
| 5330 | static bfd_vma * | |
| 5331 | symbol_tlsdesc_got_offset_ref (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5332 | unsigned long r_symndx) | |
| 5333 | { | |
| 5334 | /* Calculate the address of the GOT entry for symbol | |
| 5335 | referred to in h. */ | |
| 5336 | if (h != NULL) | |
| 5337 | { | |
| cec5225b YZ |
5338 | struct elf_aarch64_link_hash_entry *eh; |
| 5339 | eh = (struct elf_aarch64_link_hash_entry *) h; | |
| a06ea964 NC |
5340 | return &eh->tlsdesc_got_jump_table_offset; |
| 5341 | } | |
| 5342 | else | |
| 5343 | { | |
| 5344 | /* local symbol */ | |
| 5345 | struct elf_aarch64_local_symbol *l; | |
| 5346 | ||
| cec5225b | 5347 | l = elf_aarch64_locals (input_bfd); |
| a06ea964 NC |
5348 | return &l[r_symndx].tlsdesc_got_jump_table_offset; |
| 5349 | } | |
| 5350 | } | |
| 5351 | ||
| 5352 | static void | |
| 5353 | symbol_tlsdesc_got_offset_mark (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5354 | unsigned long r_symndx) | |
| 5355 | { | |
| 5356 | bfd_vma *p; | |
| 5357 | p = symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx); | |
| 5358 | *p |= 1; | |
| 5359 | } | |
| 5360 | ||
| 5361 | static int | |
| 5362 | symbol_tlsdesc_got_offset_mark_p (bfd *input_bfd, | |
| 5363 | struct elf_link_hash_entry *h, | |
| 5364 | unsigned long r_symndx) | |
| 5365 | { | |
| 5366 | bfd_vma value; | |
| 5367 | value = * symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx); | |
| 5368 | return value & 1; | |
| 5369 | } | |
| 5370 | ||
| 5371 | static bfd_vma | |
| 5372 | symbol_tlsdesc_got_offset (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5373 | unsigned long r_symndx) | |
| 5374 | { | |
| 5375 | bfd_vma value; | |
| 5376 | value = * symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx); | |
| 5377 | value &= ~1; | |
| 5378 | return value; | |
| 5379 | } | |
| 5380 | ||
| 68fcca92 JW |
5381 | /* Data for make_branch_to_erratum_835769_stub(). */ |
| 5382 | ||
| 5383 | struct erratum_835769_branch_to_stub_data | |
| 5384 | { | |
| 4106101c | 5385 | struct bfd_link_info *info; |
| 68fcca92 JW |
5386 | asection *output_section; |
| 5387 | bfd_byte *contents; | |
| 5388 | }; | |
| 5389 | ||
| 5390 | /* Helper to insert branches to erratum 835769 stubs in the right | |
| 5391 | places for a particular section. */ | |
| 5392 | ||
| 0a1b45a2 | 5393 | static bool |
| 68fcca92 JW |
5394 | make_branch_to_erratum_835769_stub (struct bfd_hash_entry *gen_entry, |
| 5395 | void *in_arg) | |
| 5396 | { | |
| 5397 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 5398 | struct erratum_835769_branch_to_stub_data *data; | |
| 5399 | bfd_byte *contents; | |
| 5400 | unsigned long branch_insn = 0; | |
| 5401 | bfd_vma veneered_insn_loc, veneer_entry_loc; | |
| 5402 | bfd_signed_vma branch_offset; | |
| 5403 | unsigned int target; | |
| 5404 | bfd *abfd; | |
| 5405 | ||
| 5406 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; | |
| 5407 | data = (struct erratum_835769_branch_to_stub_data *) in_arg; | |
| 5408 | ||
| 5409 | if (stub_entry->target_section != data->output_section | |
| 5410 | || stub_entry->stub_type != aarch64_stub_erratum_835769_veneer) | |
| 0a1b45a2 | 5411 | return true; |
| 68fcca92 JW |
5412 | |
| 5413 | contents = data->contents; | |
| 5414 | veneered_insn_loc = stub_entry->target_section->output_section->vma | |
| 5415 | + stub_entry->target_section->output_offset | |
| 5416 | + stub_entry->target_value; | |
| 5417 | veneer_entry_loc = stub_entry->stub_sec->output_section->vma | |
| 5418 | + stub_entry->stub_sec->output_offset | |
| 5419 | + stub_entry->stub_offset; | |
| 5420 | branch_offset = veneer_entry_loc - veneered_insn_loc; | |
| 5421 | ||
| 5422 | abfd = stub_entry->target_section->owner; | |
| 5423 | if (!aarch64_valid_branch_p (veneer_entry_loc, veneered_insn_loc)) | |
| 4eca0228 | 5424 | _bfd_error_handler |
| 90b6238f | 5425 | (_("%pB: error: erratum 835769 stub out " |
| 4eca0228 | 5426 | "of range (input file too large)"), abfd); |
| 68fcca92 JW |
5427 | |
| 5428 | target = stub_entry->target_value; | |
| 5429 | branch_insn = 0x14000000; | |
| 5430 | branch_offset >>= 2; | |
| 5431 | branch_offset &= 0x3ffffff; | |
| 5432 | branch_insn |= branch_offset; | |
| 5433 | bfd_putl32 (branch_insn, &contents[target]); | |
| 5434 | ||
| 0a1b45a2 | 5435 | return true; |
| 68fcca92 JW |
5436 | } |
| 5437 | ||
| 4106101c | 5438 | |
| 0a1b45a2 | 5439 | static bool |
| 4106101c MS |
5440 | _bfd_aarch64_erratum_843419_branch_to_stub (struct bfd_hash_entry *gen_entry, |
| 5441 | void *in_arg) | |
| 5442 | { | |
| 5443 | struct elf_aarch64_stub_hash_entry *stub_entry | |
| 5444 | = (struct elf_aarch64_stub_hash_entry *) gen_entry; | |
| 5445 | struct erratum_835769_branch_to_stub_data *data | |
| 5446 | = (struct erratum_835769_branch_to_stub_data *) in_arg; | |
| 5447 | struct bfd_link_info *info; | |
| 5448 | struct elf_aarch64_link_hash_table *htab; | |
| 5449 | bfd_byte *contents; | |
| 5450 | asection *section; | |
| 5451 | bfd *abfd; | |
| 5452 | bfd_vma place; | |
| 5453 | uint32_t insn; | |
| 5454 | ||
| 5455 | info = data->info; | |
| 5456 | contents = data->contents; | |
| 5457 | section = data->output_section; | |
| 5458 | ||
| 5459 | htab = elf_aarch64_hash_table (info); | |
| 5460 | ||
| 5461 | if (stub_entry->target_section != section | |
| 5462 | || stub_entry->stub_type != aarch64_stub_erratum_843419_veneer) | |
| 0a1b45a2 | 5463 | return true; |
| 4106101c | 5464 | |
| 739b5c9c TC |
5465 | BFD_ASSERT (((htab->fix_erratum_843419 & ERRAT_ADRP) && stub_entry->stub_sec) |
| 5466 | || (htab->fix_erratum_843419 & ERRAT_ADR)); | |
| 5467 | ||
| 5468 | /* Only update the stub section if we have one. We should always have one if | |
| 5469 | we're allowed to use the ADRP errata workaround, otherwise it is not | |
| 5470 | required. */ | |
| 5471 | if (stub_entry->stub_sec) | |
| 5472 | { | |
| 5473 | insn = bfd_getl32 (contents + stub_entry->target_value); | |
| 5474 | bfd_putl32 (insn, | |
| 5475 | stub_entry->stub_sec->contents + stub_entry->stub_offset); | |
| 5476 | } | |
| 4106101c MS |
5477 | |
| 5478 | place = (section->output_section->vma + section->output_offset | |
| 5479 | + stub_entry->adrp_offset); | |
| 5480 | insn = bfd_getl32 (contents + stub_entry->adrp_offset); | |
| 5481 | ||
| 9fca35fc | 5482 | if (!_bfd_aarch64_adrp_p (insn)) |
| 4106101c MS |
5483 | abort (); |
| 5484 | ||
| 5485 | bfd_signed_vma imm = | |
| 5486 | (_bfd_aarch64_sign_extend | |
| 5487 | ((bfd_vma) _bfd_aarch64_decode_adrp_imm (insn) << 12, 33) | |
| 5488 | - (place & 0xfff)); | |
| 5489 | ||
| 739b5c9c | 5490 | if ((htab->fix_erratum_843419 & ERRAT_ADR) |
| 4106101c MS |
5491 | && (imm >= AARCH64_MIN_ADRP_IMM && imm <= AARCH64_MAX_ADRP_IMM)) |
| 5492 | { | |
| 5493 | insn = (_bfd_aarch64_reencode_adr_imm (AARCH64_ADR_OP, imm) | |
| 5494 | | AARCH64_RT (insn)); | |
| 5495 | bfd_putl32 (insn, contents + stub_entry->adrp_offset); | |
| 739b5c9c TC |
5496 | /* Stub is not needed, don't map it out. */ |
| 5497 | stub_entry->stub_type = aarch64_stub_none; | |
| 4106101c | 5498 | } |
| 739b5c9c | 5499 | else if (htab->fix_erratum_843419 & ERRAT_ADRP) |
| 4106101c MS |
5500 | { |
| 5501 | bfd_vma veneered_insn_loc; | |
| 5502 | bfd_vma veneer_entry_loc; | |
| 5503 | bfd_signed_vma branch_offset; | |
| 5504 | uint32_t branch_insn; | |
| 5505 | ||
| 5506 | veneered_insn_loc = stub_entry->target_section->output_section->vma | |
| 5507 | + stub_entry->target_section->output_offset | |
| 5508 | + stub_entry->target_value; | |
| 5509 | veneer_entry_loc = stub_entry->stub_sec->output_section->vma | |
| 5510 | + stub_entry->stub_sec->output_offset | |
| 5511 | + stub_entry->stub_offset; | |
| 5512 | branch_offset = veneer_entry_loc - veneered_insn_loc; | |
| 5513 | ||
| 5514 | abfd = stub_entry->target_section->owner; | |
| 5515 | if (!aarch64_valid_branch_p (veneer_entry_loc, veneered_insn_loc)) | |
| 4eca0228 | 5516 | _bfd_error_handler |
| 90b6238f | 5517 | (_("%pB: error: erratum 843419 stub out " |
| 4106101c MS |
5518 | "of range (input file too large)"), abfd); |
| 5519 | ||
| 5520 | branch_insn = 0x14000000; | |
| 5521 | branch_offset >>= 2; | |
| 5522 | branch_offset &= 0x3ffffff; | |
| 5523 | branch_insn |= branch_offset; | |
| 5524 | bfd_putl32 (branch_insn, contents + stub_entry->target_value); | |
| 5525 | } | |
| 739b5c9c TC |
5526 | else |
| 5527 | { | |
| 5528 | abfd = stub_entry->target_section->owner; | |
| 5529 | _bfd_error_handler | |
| b8281767 AM |
5530 | (_("%pB: error: erratum 843419 immediate 0x%" PRIx64 |
| 5531 | " out of range for ADR (input file too large) and " | |
| 739b5c9c | 5532 | "--fix-cortex-a53-843419=adr used. Run the linker with " |
| b8281767 AM |
5533 | "--fix-cortex-a53-843419=full instead"), |
| 5534 | abfd, (uint64_t) (bfd_vma) imm); | |
| 739b5c9c TC |
5535 | bfd_set_error (bfd_error_bad_value); |
| 5536 | /* This function is called inside a hashtable traversal and the error | |
| 5537 | handlers called above turn into non-fatal errors. Which means this | |
| 5538 | case ld returns an exit code 0 and also produces a broken object file. | |
| 5539 | To prevent this, issue a hard abort. */ | |
| 5540 | BFD_FAIL (); | |
| 5541 | } | |
| 0a1b45a2 | 5542 | return true; |
| 4106101c MS |
5543 | } |
| 5544 | ||
| 5545 | ||
| 0a1b45a2 | 5546 | static bool |
| 68fcca92 JW |
5547 | elfNN_aarch64_write_section (bfd *output_bfd ATTRIBUTE_UNUSED, |
| 5548 | struct bfd_link_info *link_info, | |
| 5549 | asection *sec, | |
| 5550 | bfd_byte *contents) | |
| 5551 | ||
| 5552 | { | |
| 5553 | struct elf_aarch64_link_hash_table *globals = | |
| f872121a | 5554 | elf_aarch64_hash_table (link_info); |
| 68fcca92 JW |
5555 | |
| 5556 | if (globals == NULL) | |
| 0a1b45a2 | 5557 | return false; |
| 68fcca92 JW |
5558 | |
| 5559 | /* Fix code to point to erratum 835769 stubs. */ | |
| 5560 | if (globals->fix_erratum_835769) | |
| 5561 | { | |
| 5562 | struct erratum_835769_branch_to_stub_data data; | |
| 5563 | ||
| 4106101c | 5564 | data.info = link_info; |
| 68fcca92 JW |
5565 | data.output_section = sec; |
| 5566 | data.contents = contents; | |
| 5567 | bfd_hash_traverse (&globals->stub_hash_table, | |
| 5568 | make_branch_to_erratum_835769_stub, &data); | |
| 5569 | } | |
| 5570 | ||
| 4106101c MS |
5571 | if (globals->fix_erratum_843419) |
| 5572 | { | |
| 5573 | struct erratum_835769_branch_to_stub_data data; | |
| 5574 | ||
| 5575 | data.info = link_info; | |
| 5576 | data.output_section = sec; | |
| 5577 | data.contents = contents; | |
| 5578 | bfd_hash_traverse (&globals->stub_hash_table, | |
| 5579 | _bfd_aarch64_erratum_843419_branch_to_stub, &data); | |
| 5580 | } | |
| 5581 | ||
| 0a1b45a2 | 5582 | return false; |
| 68fcca92 JW |
5583 | } |
| 5584 | ||
| 2aff25ba JW |
5585 | /* Return TRUE if RELOC is a relocation against the base of GOT table. */ |
| 5586 | ||
| 0a1b45a2 | 5587 | static bool |
| 2aff25ba JW |
5588 | aarch64_relocation_aginst_gp_p (bfd_reloc_code_real_type reloc) |
| 5589 | { | |
| 5590 | return (reloc == BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14 | |
| 5591 | || reloc == BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15 | |
| 5592 | || reloc == BFD_RELOC_AARCH64_LD64_GOTOFF_LO15 | |
| 5593 | || reloc == BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC | |
| 5594 | || reloc == BFD_RELOC_AARCH64_MOVW_GOTOFF_G1); | |
| 5595 | } | |
| 5596 | ||
| 4e7fbb34 JW |
5597 | /* Perform a relocation as part of a final link. The input relocation type |
| 5598 | should be TLS relaxed. */ | |
| 5599 | ||
| a06ea964 | 5600 | static bfd_reloc_status_type |
| cec5225b | 5601 | elfNN_aarch64_final_link_relocate (reloc_howto_type *howto, |
| a06ea964 NC |
5602 | bfd *input_bfd, |
| 5603 | bfd *output_bfd, | |
| 5604 | asection *input_section, | |
| 5605 | bfd_byte *contents, | |
| 5606 | Elf_Internal_Rela *rel, | |
| 5607 | bfd_vma value, | |
| 5608 | struct bfd_link_info *info, | |
| 5609 | asection *sym_sec, | |
| 5610 | struct elf_link_hash_entry *h, | |
| 0a1b45a2 AM |
5611 | bool *unresolved_reloc_p, |
| 5612 | bool save_addend, | |
| 1419bbe5 WN |
5613 | bfd_vma *saved_addend, |
| 5614 | Elf_Internal_Sym *sym) | |
| a06ea964 | 5615 | { |
| 1419bbe5 | 5616 | Elf_Internal_Shdr *symtab_hdr; |
| a06ea964 | 5617 | unsigned int r_type = howto->type; |
| a6bb11b2 YZ |
5618 | bfd_reloc_code_real_type bfd_r_type |
| 5619 | = elfNN_aarch64_bfd_reloc_from_howto (howto); | |
| a06ea964 NC |
5620 | unsigned long r_symndx; |
| 5621 | bfd_byte *hit_data = contents + rel->r_offset; | |
| 96d01d93 | 5622 | bfd_vma place, off, got_entry_addr = 0; |
| a06ea964 | 5623 | bfd_signed_vma signed_addend; |
| cec5225b | 5624 | struct elf_aarch64_link_hash_table *globals; |
| 0a1b45a2 AM |
5625 | bool weak_undef_p; |
| 5626 | bool relative_reloc; | |
| b53b1bed | 5627 | asection *base_got; |
| ff07562f | 5628 | bfd_vma orig_value = value; |
| 0a1b45a2 AM |
5629 | bool resolved_to_zero; |
| 5630 | bool abs_symbol_p; | |
| a06ea964 | 5631 | |
| cec5225b | 5632 | globals = elf_aarch64_hash_table (info); |
| a06ea964 | 5633 | |
| 1419bbe5 WN |
5634 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5635 | ||
| a06ea964 NC |
5636 | BFD_ASSERT (is_aarch64_elf (input_bfd)); |
| 5637 | ||
| cec5225b | 5638 | r_symndx = ELFNN_R_SYM (rel->r_info); |
| a06ea964 | 5639 | |
| a06ea964 NC |
5640 | place = input_section->output_section->vma |
| 5641 | + input_section->output_offset + rel->r_offset; | |
| 5642 | ||
| 5643 | /* Get addend, accumulating the addend for consecutive relocs | |
| 5644 | which refer to the same offset. */ | |
| 5645 | signed_addend = saved_addend ? *saved_addend : 0; | |
| 5646 | signed_addend += rel->r_addend; | |
| 5647 | ||
| 5648 | weak_undef_p = (h ? h->root.type == bfd_link_hash_undefweak | |
| 5649 | : bfd_is_und_section (sym_sec)); | |
| c691de6a | 5650 | abs_symbol_p = h != NULL && bfd_is_abs_symbol (&h->root); |
| 0c1ded8d | 5651 | |
| a6bb11b2 | 5652 | |
| 1419bbe5 WN |
5653 | /* Since STT_GNU_IFUNC symbol must go through PLT, we handle |
| 5654 | it here if it is defined in a non-shared object. */ | |
| 5655 | if (h != NULL | |
| 5656 | && h->type == STT_GNU_IFUNC | |
| 5657 | && h->def_regular) | |
| 5658 | { | |
| 5659 | asection *plt; | |
| 5660 | const char *name; | |
| 99ad26cb | 5661 | bfd_vma addend = 0; |
| 1419bbe5 | 5662 | |
| 545bc2b3 SN |
5663 | if ((input_section->flags & SEC_ALLOC) == 0) |
| 5664 | { | |
| f657f8c4 NC |
5665 | /* If this is a SHT_NOTE section without SHF_ALLOC, treat |
| 5666 | STT_GNU_IFUNC symbol as STT_FUNC. */ | |
| 5667 | if (elf_section_type (input_section) == SHT_NOTE) | |
| 5668 | goto skip_ifunc; | |
| 5669 | ||
| 545bc2b3 SN |
5670 | /* Dynamic relocs are not propagated for SEC_DEBUGGING |
| 5671 | sections because such sections are not SEC_ALLOC and | |
| 5672 | thus ld.so will not process them. */ | |
| 5673 | if ((input_section->flags & SEC_DEBUGGING) != 0) | |
| 5674 | return bfd_reloc_ok; | |
| 5675 | ||
| 5676 | if (h->root.root.string) | |
| 5677 | name = h->root.root.string; | |
| 5678 | else | |
| 5679 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, NULL); | |
| 5680 | _bfd_error_handler | |
| 5681 | /* xgettext:c-format */ | |
| 2dcf00ce AM |
5682 | (_("%pB(%pA+%#" PRIx64 "): " |
| 5683 | "unresolvable %s relocation against symbol `%s'"), | |
| 5684 | input_bfd, input_section, (uint64_t) rel->r_offset, | |
| 5685 | howto->name, name); | |
| 545bc2b3 | 5686 | bfd_set_error (bfd_error_bad_value); |
| 1d75a8e2 | 5687 | return bfd_reloc_notsupported; |
| 545bc2b3 SN |
5688 | } |
| 5689 | else if (h->plt.offset == (bfd_vma) -1) | |
| 5690 | goto bad_ifunc_reloc; | |
| 1419bbe5 WN |
5691 | |
| 5692 | /* STT_GNU_IFUNC symbol must go through PLT. */ | |
| 5693 | plt = globals->root.splt ? globals->root.splt : globals->root.iplt; | |
| 5694 | value = (plt->output_section->vma + plt->output_offset + h->plt.offset); | |
| 5695 | ||
| 5696 | switch (bfd_r_type) | |
| 5697 | { | |
| 5698 | default: | |
| dc1e8a47 | 5699 | bad_ifunc_reloc: |
| 1419bbe5 WN |
5700 | if (h->root.root.string) |
| 5701 | name = h->root.root.string; | |
| 5702 | else | |
| 5703 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, | |
| 5704 | NULL); | |
| 4eca0228 | 5705 | _bfd_error_handler |
| 695344c0 | 5706 | /* xgettext:c-format */ |
| 871b3ab2 | 5707 | (_("%pB: relocation %s against STT_GNU_IFUNC " |
| 1419bbe5 | 5708 | "symbol `%s' isn't handled by %s"), input_bfd, |
| 4981a31d | 5709 | howto->name, name, __func__); |
| 1419bbe5 | 5710 | bfd_set_error (bfd_error_bad_value); |
| 1d75a8e2 | 5711 | return bfd_reloc_notsupported; |
| 1419bbe5 WN |
5712 | |
| 5713 | case BFD_RELOC_AARCH64_NN: | |
| 5714 | if (rel->r_addend != 0) | |
| 5715 | { | |
| 5716 | if (h->root.root.string) | |
| 5717 | name = h->root.root.string; | |
| 5718 | else | |
| 5719 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, | |
| 5720 | sym, NULL); | |
| 4eca0228 | 5721 | _bfd_error_handler |
| 695344c0 | 5722 | /* xgettext:c-format */ |
| 871b3ab2 | 5723 | (_("%pB: relocation %s against STT_GNU_IFUNC " |
| 2dcf00ce AM |
5724 | "symbol `%s' has non-zero addend: %" PRId64), |
| 5725 | input_bfd, howto->name, name, (int64_t) rel->r_addend); | |
| 1419bbe5 | 5726 | bfd_set_error (bfd_error_bad_value); |
| 1d75a8e2 | 5727 | return bfd_reloc_notsupported; |
| 1419bbe5 WN |
5728 | } |
| 5729 | ||
| 5730 | /* Generate dynamic relocation only when there is a | |
| 5731 | non-GOT reference in a shared object. */ | |
| 0e1862bb | 5732 | if (bfd_link_pic (info) && h->non_got_ref) |
| 1419bbe5 WN |
5733 | { |
| 5734 | Elf_Internal_Rela outrel; | |
| 5735 | asection *sreloc; | |
| 5736 | ||
| 5737 | /* Need a dynamic relocation to get the real function | |
| 5738 | address. */ | |
| 5739 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, | |
| 5740 | info, | |
| 5741 | input_section, | |
| 5742 | rel->r_offset); | |
| 5743 | if (outrel.r_offset == (bfd_vma) -1 | |
| 5744 | || outrel.r_offset == (bfd_vma) -2) | |
| 5745 | abort (); | |
| 5746 | ||
| 5747 | outrel.r_offset += (input_section->output_section->vma | |
| 5748 | + input_section->output_offset); | |
| 5749 | ||
| 5750 | if (h->dynindx == -1 | |
| 5751 | || h->forced_local | |
| 0e1862bb | 5752 | || bfd_link_executable (info)) |
| 1419bbe5 WN |
5753 | { |
| 5754 | /* This symbol is resolved locally. */ | |
| 5755 | outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (IRELATIVE)); | |
| 5756 | outrel.r_addend = (h->root.u.def.value | |
| 5757 | + h->root.u.def.section->output_section->vma | |
| 5758 | + h->root.u.def.section->output_offset); | |
| 5759 | } | |
| 5760 | else | |
| 5761 | { | |
| 5762 | outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type); | |
| 5763 | outrel.r_addend = 0; | |
| 5764 | } | |
| 5765 | ||
| 5766 | sreloc = globals->root.irelifunc; | |
| 5767 | elf_append_rela (output_bfd, sreloc, &outrel); | |
| 5768 | ||
| 5769 | /* If this reloc is against an external symbol, we | |
| 5770 | do not want to fiddle with the addend. Otherwise, | |
| 5771 | we need to include the symbol value so that it | |
| 5772 | becomes an addend for the dynamic reloc. For an | |
| 5773 | internal symbol, we have updated addend. */ | |
| 5774 | return bfd_reloc_ok; | |
| 5775 | } | |
| 5776 | /* FALLTHROUGH */ | |
| 1419bbe5 | 5777 | case BFD_RELOC_AARCH64_CALL26: |
| ce336788 | 5778 | case BFD_RELOC_AARCH64_JUMP26: |
| 652afeef TC |
5779 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5780 | place, value, | |
| 1419bbe5 WN |
5781 | signed_addend, |
| 5782 | weak_undef_p); | |
| 5783 | return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type, | |
| 5784 | howto, value); | |
| 1419bbe5 WN |
5785 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 5786 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: | |
| 7018c030 | 5787 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| ce336788 | 5788 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| 99ad26cb | 5789 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| dc8008f5 | 5790 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 5791 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| a2e1db00 | 5792 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| ce336788 | 5793 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| 1419bbe5 WN |
5794 | base_got = globals->root.sgot; |
| 5795 | off = h->got.offset; | |
| 5796 | ||
| 5797 | if (base_got == NULL) | |
| 5798 | abort (); | |
| 5799 | ||
| 5800 | if (off == (bfd_vma) -1) | |
| 5801 | { | |
| 5802 | bfd_vma plt_index; | |
| 5803 | ||
| 5804 | /* We can't use h->got.offset here to save state, or | |
| 5805 | even just remember the offset, as finish_dynamic_symbol | |
| 5806 | would use that as offset into .got. */ | |
| 5807 | ||
| 5808 | if (globals->root.splt != NULL) | |
| 5809 | { | |
| b1ee0cc4 WN |
5810 | plt_index = ((h->plt.offset - globals->plt_header_size) / |
| 5811 | globals->plt_entry_size); | |
| 1419bbe5 WN |
5812 | off = (plt_index + 3) * GOT_ENTRY_SIZE; |
| 5813 | base_got = globals->root.sgotplt; | |
| 5814 | } | |
| 5815 | else | |
| 5816 | { | |
| 5817 | plt_index = h->plt.offset / globals->plt_entry_size; | |
| 5818 | off = plt_index * GOT_ENTRY_SIZE; | |
| 5819 | base_got = globals->root.igotplt; | |
| 5820 | } | |
| 5821 | ||
| 5822 | if (h->dynindx == -1 | |
| 5823 | || h->forced_local | |
| 5824 | || info->symbolic) | |
| 5825 | { | |
| 5826 | /* This references the local definition. We must | |
| 5827 | initialize this entry in the global offset table. | |
| 5828 | Since the offset must always be a multiple of 8, | |
| 5829 | we use the least significant bit to record | |
| 5830 | whether we have initialized it already. | |
| 5831 | ||
| 5832 | When doing a dynamic link, we create a .rela.got | |
| 5833 | relocation entry to initialize the value. This | |
| 5834 | is done in the finish_dynamic_symbol routine. */ | |
| 5835 | if ((off & 1) != 0) | |
| 5836 | off &= ~1; | |
| 5837 | else | |
| 5838 | { | |
| 5839 | bfd_put_NN (output_bfd, value, | |
| 5840 | base_got->contents + off); | |
| 5841 | /* Note that this is harmless as -1 | 1 still is -1. */ | |
| 5842 | h->got.offset |= 1; | |
| 5843 | } | |
| 5844 | } | |
| 5845 | value = (base_got->output_section->vma | |
| 5846 | + base_got->output_offset + off); | |
| 5847 | } | |
| 5848 | else | |
| 5849 | value = aarch64_calculate_got_entry_vma (h, globals, info, | |
| 5850 | value, output_bfd, | |
| 5851 | unresolved_reloc_p); | |
| a0becb89 | 5852 | |
| 2aff25ba JW |
5853 | if (aarch64_relocation_aginst_gp_p (bfd_r_type)) |
| 5854 | addend = (globals->root.sgot->output_section->vma | |
| 5855 | + globals->root.sgot->output_offset); | |
| a0becb89 | 5856 | |
| 652afeef TC |
5857 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5858 | place, value, | |
| 99ad26cb | 5859 | addend, weak_undef_p); |
| 1419bbe5 | 5860 | return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type, howto, value); |
| 1419bbe5 | 5861 | case BFD_RELOC_AARCH64_ADD_LO12: |
| ce336788 | 5862 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: |
| 1419bbe5 WN |
5863 | break; |
| 5864 | } | |
| 5865 | } | |
| 5866 | ||
| f657f8c4 | 5867 | skip_ifunc: |
| ddb7fd0f L |
5868 | resolved_to_zero = (h != NULL |
| 5869 | && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); | |
| 5870 | ||
| a6bb11b2 | 5871 | switch (bfd_r_type) |
| a06ea964 | 5872 | { |
| a6bb11b2 | 5873 | case BFD_RELOC_AARCH64_NONE: |
| 0484b454 | 5874 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| a6bb11b2 | 5875 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| 0484b454 | 5876 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| 0a1b45a2 | 5877 | *unresolved_reloc_p = false; |
| a06ea964 NC |
5878 | return bfd_reloc_ok; |
| 5879 | ||
| a6bb11b2 | 5880 | case BFD_RELOC_AARCH64_NN: |
| a06ea964 NC |
5881 | |
| 5882 | /* When generating a shared object or relocatable executable, these | |
| 07d6d2b8 AM |
5883 | relocations are copied into the output file to be resolved at |
| 5884 | run time. */ | |
| 6353d82b JW |
5885 | if (((bfd_link_pic (info) |
| 5886 | || globals->root.is_relocatable_executable) | |
| 5887 | && (input_section->flags & SEC_ALLOC) | |
| 5888 | && (h == NULL | |
| ddb7fd0f L |
5889 | || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
| 5890 | && !resolved_to_zero) | |
| 6353d82b JW |
5891 | || h->root.type != bfd_link_hash_undefweak)) |
| 5892 | /* Or we are creating an executable, we may need to keep relocations | |
| 5893 | for symbols satisfied by a dynamic library if we manage to avoid | |
| 5894 | copy relocs for the symbol. */ | |
| 5895 | || (ELIMINATE_COPY_RELOCS | |
| 5896 | && !bfd_link_pic (info) | |
| 5897 | && h != NULL | |
| 5898 | && (input_section->flags & SEC_ALLOC) | |
| 5899 | && h->dynindx != -1 | |
| 5900 | && !h->non_got_ref | |
| 5901 | && ((h->def_dynamic | |
| 5902 | && !h->def_regular) | |
| 5903 | || h->root.type == bfd_link_hash_undefweak | |
| 5904 | || h->root.type == bfd_link_hash_undefined))) | |
| a06ea964 NC |
5905 | { |
| 5906 | Elf_Internal_Rela outrel; | |
| 5907 | bfd_byte *loc; | |
| 0a1b45a2 | 5908 | bool skip, relocate; |
| a06ea964 NC |
5909 | asection *sreloc; |
| 5910 | ||
| 0a1b45a2 | 5911 | *unresolved_reloc_p = false; |
| a06ea964 | 5912 | |
| 0a1b45a2 AM |
5913 | skip = false; |
| 5914 | relocate = false; | |
| a06ea964 NC |
5915 | |
| 5916 | outrel.r_addend = signed_addend; | |
| 5917 | outrel.r_offset = | |
| 5918 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 5919 | rel->r_offset); | |
| 5920 | if (outrel.r_offset == (bfd_vma) - 1) | |
| 0a1b45a2 | 5921 | skip = true; |
| a06ea964 NC |
5922 | else if (outrel.r_offset == (bfd_vma) - 2) |
| 5923 | { | |
| 0a1b45a2 AM |
5924 | skip = true; |
| 5925 | relocate = true; | |
| a06ea964 | 5926 | } |
| 0c1ded8d RL |
5927 | else if (abs_symbol_p) |
| 5928 | { | |
| 5929 | /* Local absolute symbol. */ | |
| 5930 | skip = (h->forced_local || (h->dynindx == -1)); | |
| 5931 | relocate = skip; | |
| 5932 | } | |
| a06ea964 NC |
5933 | |
| 5934 | outrel.r_offset += (input_section->output_section->vma | |
| 5935 | + input_section->output_offset); | |
| 5936 | ||
| 5937 | if (skip) | |
| 5938 | memset (&outrel, 0, sizeof outrel); | |
| 5939 | else if (h != NULL | |
| 5940 | && h->dynindx != -1 | |
| 0e1862bb | 5941 | && (!bfd_link_pic (info) |
| 0c1ded8d | 5942 | || !(bfd_link_pie (info) || SYMBOLIC_BIND (info, h)) |
| 0e1862bb | 5943 | || !h->def_regular)) |
| cec5225b | 5944 | outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type); |
| a06ea964 NC |
5945 | else |
| 5946 | { | |
| 5947 | int symbol; | |
| 5948 | ||
| 5949 | /* On SVR4-ish systems, the dynamic loader cannot | |
| 5950 | relocate the text and data segments independently, | |
| 5951 | so the symbol does not matter. */ | |
| 5952 | symbol = 0; | |
| 63b4cc53 | 5953 | relocate = !globals->no_apply_dynamic_relocs; |
| a6bb11b2 | 5954 | outrel.r_info = ELFNN_R_INFO (symbol, AARCH64_R (RELATIVE)); |
| a06ea964 NC |
5955 | outrel.r_addend += value; |
| 5956 | } | |
| 5957 | ||
| 1419bbe5 WN |
5958 | sreloc = elf_section_data (input_section)->sreloc; |
| 5959 | if (sreloc == NULL || sreloc->contents == NULL) | |
| 5960 | return bfd_reloc_notsupported; | |
| 5961 | ||
| 5962 | loc = sreloc->contents + sreloc->reloc_count++ * RELOC_SIZE (globals); | |
| cec5225b | 5963 | bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc); |
| a06ea964 | 5964 | |
| 1419bbe5 | 5965 | if (sreloc->reloc_count * RELOC_SIZE (globals) > sreloc->size) |
| a06ea964 NC |
5966 | { |
| 5967 | /* Sanity to check that we have previously allocated | |
| 5968 | sufficient space in the relocation section for the | |
| 5969 | number of relocations we actually want to emit. */ | |
| 5970 | abort (); | |
| 5971 | } | |
| 5972 | ||
| 5973 | /* If this reloc is against an external symbol, we do not want to | |
| 5974 | fiddle with the addend. Otherwise, we need to include the symbol | |
| 5975 | value so that it becomes an addend for the dynamic reloc. */ | |
| 5976 | if (!relocate) | |
| 5977 | return bfd_reloc_ok; | |
| 5978 | ||
| 5979 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
| 5980 | contents, rel->r_offset, value, | |
| 5981 | signed_addend); | |
| 5982 | } | |
| 5983 | else | |
| 5984 | value += signed_addend; | |
| 5985 | break; | |
| 5986 | ||
| a6bb11b2 | 5987 | case BFD_RELOC_AARCH64_CALL26: |
| ce336788 | 5988 | case BFD_RELOC_AARCH64_JUMP26: |
| a06ea964 NC |
5989 | { |
| 5990 | asection *splt = globals->root.splt; | |
| 0a1b45a2 | 5991 | bool via_plt_p = |
| c7cd2917 | 5992 | splt != NULL && h != NULL && h->plt.offset != (bfd_vma) - 1; |
| a06ea964 NC |
5993 | |
| 5994 | /* A call to an undefined weak symbol is converted to a jump to | |
| 5995 | the next instruction unless a PLT entry will be created. | |
| 5996 | The jump to the next instruction is optimized as a NOP. | |
| 5997 | Do the same for local undefined symbols. */ | |
| 5998 | if (weak_undef_p && ! via_plt_p) | |
| 5999 | { | |
| 6000 | bfd_putl32 (INSN_NOP, hit_data); | |
| 6001 | return bfd_reloc_ok; | |
| 6002 | } | |
| 6003 | ||
| 6004 | /* If the call goes through a PLT entry, make sure to | |
| 6005 | check distance to the right destination address. */ | |
| 6006 | if (via_plt_p) | |
| 07f9ddfe JW |
6007 | value = (splt->output_section->vma |
| 6008 | + splt->output_offset + h->plt.offset); | |
| 6009 | ||
| 6010 | /* Check if a stub has to be inserted because the destination | |
| 6011 | is too far away. */ | |
| 6012 | struct elf_aarch64_stub_hash_entry *stub_entry = NULL; | |
| 2f340668 JW |
6013 | |
| 6014 | /* If the branch destination is directed to plt stub, "value" will be | |
| 6015 | the final destination, otherwise we should plus signed_addend, it may | |
| 6016 | contain non-zero value, for example call to local function symbol | |
| 6017 | which are turned into "sec_sym + sec_off", and sec_off is kept in | |
| 6018 | signed_addend. */ | |
| 6019 | if (! aarch64_valid_branch_p (via_plt_p ? value : value + signed_addend, | |
| 6020 | place)) | |
| 07f9ddfe JW |
6021 | /* The target is out of reach, so redirect the branch to |
| 6022 | the local stub for this function. */ | |
| 6023 | stub_entry = elfNN_aarch64_get_stub_entry (input_section, sym_sec, h, | |
| 6024 | rel, globals); | |
| 6025 | if (stub_entry != NULL) | |
| 2f340668 JW |
6026 | { |
| 6027 | value = (stub_entry->stub_offset | |
| 6028 | + stub_entry->stub_sec->output_offset | |
| 6029 | + stub_entry->stub_sec->output_section->vma); | |
| 6030 | ||
| 6031 | /* We have redirected the destination to stub entry address, | |
| 6032 | so ignore any addend record in the original rela entry. */ | |
| 6033 | signed_addend = 0; | |
| 6034 | } | |
| a06ea964 | 6035 | } |
| 652afeef TC |
6036 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6037 | place, value, | |
| caed7120 | 6038 | signed_addend, weak_undef_p); |
| 0a1b45a2 | 6039 | *unresolved_reloc_p = false; |
| a06ea964 NC |
6040 | break; |
| 6041 | ||
| dcbd20eb JW |
6042 | case BFD_RELOC_AARCH64_16_PCREL: |
| 6043 | case BFD_RELOC_AARCH64_32_PCREL: | |
| 6044 | case BFD_RELOC_AARCH64_64_PCREL: | |
| ce336788 JW |
6045 | case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL: |
| 6046 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: | |
| 6047 | case BFD_RELOC_AARCH64_ADR_LO21_PCREL: | |
| 6048 | case BFD_RELOC_AARCH64_LD_LO19_PCREL: | |
| 1daf502a RL |
6049 | case BFD_RELOC_AARCH64_MOVW_PREL_G0: |
| 6050 | case BFD_RELOC_AARCH64_MOVW_PREL_G0_NC: | |
| 6051 | case BFD_RELOC_AARCH64_MOVW_PREL_G1: | |
| 6052 | case BFD_RELOC_AARCH64_MOVW_PREL_G1_NC: | |
| 6053 | case BFD_RELOC_AARCH64_MOVW_PREL_G2: | |
| 6054 | case BFD_RELOC_AARCH64_MOVW_PREL_G2_NC: | |
| 6055 | case BFD_RELOC_AARCH64_MOVW_PREL_G3: | |
| 0e1862bb | 6056 | if (bfd_link_pic (info) |
| dcbd20eb JW |
6057 | && (input_section->flags & SEC_ALLOC) != 0 |
| 6058 | && (input_section->flags & SEC_READONLY) != 0 | |
| 83c32500 | 6059 | && !_bfd_elf_symbol_refs_local_p (h, info, 1)) |
| dcbd20eb JW |
6060 | { |
| 6061 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 6062 | ||
| 4eca0228 | 6063 | _bfd_error_handler |
| 695344c0 | 6064 | /* xgettext:c-format */ |
| 871b3ab2 | 6065 | (_("%pB: relocation %s against symbol `%s' which may bind " |
| d68f1976 JW |
6066 | "externally can not be used when making a shared object; " |
| 6067 | "recompile with -fPIC"), | |
| dcbd20eb JW |
6068 | input_bfd, elfNN_aarch64_howto_table[howto_index].name, |
| 6069 | h->root.root.string); | |
| 6070 | bfd_set_error (bfd_error_bad_value); | |
| 1d75a8e2 | 6071 | return bfd_reloc_notsupported; |
| dcbd20eb | 6072 | } |
| c7cd2917 SP |
6073 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6074 | place, value, | |
| 6075 | signed_addend, | |
| 6076 | weak_undef_p); | |
| 6077 | break; | |
| 6078 | ||
| 6079 | case BFD_RELOC_AARCH64_BRANCH19: | |
| 6080 | case BFD_RELOC_AARCH64_TSTBR14: | |
| 6081 | if (h && h->root.type == bfd_link_hash_undefined) | |
| 6082 | { | |
| 6083 | _bfd_error_handler | |
| 6084 | /* xgettext:c-format */ | |
| 6085 | (_("%pB: conditional branch to undefined symbol `%s' " | |
| 6086 | "not allowed"), input_bfd, h->root.root.string); | |
| 6087 | bfd_set_error (bfd_error_bad_value); | |
| 6088 | return bfd_reloc_notsupported; | |
| 6089 | } | |
| 1a0670f3 | 6090 | /* Fall through. */ |
| dcbd20eb | 6091 | |
| a6bb11b2 | 6092 | case BFD_RELOC_AARCH64_16: |
| 92d77487 RL |
6093 | #if ARCH_SIZE == 64 |
| 6094 | case BFD_RELOC_AARCH64_32: | |
| 6095 | #endif | |
| a6bb11b2 | 6096 | case BFD_RELOC_AARCH64_ADD_LO12: |
| ce336788 | 6097 | case BFD_RELOC_AARCH64_LDST128_LO12: |
| a6bb11b2 YZ |
6098 | case BFD_RELOC_AARCH64_LDST16_LO12: |
| 6099 | case BFD_RELOC_AARCH64_LDST32_LO12: | |
| 6100 | case BFD_RELOC_AARCH64_LDST64_LO12: | |
| ce336788 | 6101 | case BFD_RELOC_AARCH64_LDST8_LO12: |
| a6bb11b2 YZ |
6102 | case BFD_RELOC_AARCH64_MOVW_G0: |
| 6103 | case BFD_RELOC_AARCH64_MOVW_G0_NC: | |
| ce336788 | 6104 | case BFD_RELOC_AARCH64_MOVW_G0_S: |
| a6bb11b2 YZ |
6105 | case BFD_RELOC_AARCH64_MOVW_G1: |
| 6106 | case BFD_RELOC_AARCH64_MOVW_G1_NC: | |
| ce336788 | 6107 | case BFD_RELOC_AARCH64_MOVW_G1_S: |
| a6bb11b2 YZ |
6108 | case BFD_RELOC_AARCH64_MOVW_G2: |
| 6109 | case BFD_RELOC_AARCH64_MOVW_G2_NC: | |
| ce336788 | 6110 | case BFD_RELOC_AARCH64_MOVW_G2_S: |
| a6bb11b2 | 6111 | case BFD_RELOC_AARCH64_MOVW_G3: |
| 652afeef TC |
6112 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6113 | place, value, | |
| caed7120 | 6114 | signed_addend, weak_undef_p); |
| a06ea964 NC |
6115 | break; |
| 6116 | ||
| a6bb11b2 YZ |
6117 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 6118 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: | |
| 7018c030 | 6119 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| ce336788 | 6120 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| 99ad26cb | 6121 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| ce336788 | 6122 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| 2aff25ba JW |
6123 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 6124 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: | |
| 6125 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: | |
| a06ea964 NC |
6126 | if (globals->root.sgot == NULL) |
| 6127 | BFD_ASSERT (h != NULL); | |
| 6128 | ||
| 0a1b45a2 | 6129 | relative_reloc = false; |
| a06ea964 NC |
6130 | if (h != NULL) |
| 6131 | { | |
| 99ad26cb | 6132 | bfd_vma addend = 0; |
| ff07562f JW |
6133 | |
| 6134 | /* If a symbol is not dynamic and is not undefined weak, bind it | |
| 6135 | locally and generate a RELATIVE relocation under PIC mode. | |
| 6136 | ||
| 6137 | NOTE: one symbol may be referenced by several relocations, we | |
| 6138 | should only generate one RELATIVE relocation for that symbol. | |
| 6139 | Therefore, check GOT offset mark first. */ | |
| 6140 | if (h->dynindx == -1 | |
| 6141 | && !h->forced_local | |
| 6142 | && h->root.type != bfd_link_hash_undefweak | |
| 6143 | && bfd_link_pic (info) | |
| 6144 | && !symbol_got_offset_mark_p (input_bfd, h, r_symndx)) | |
| 0a1b45a2 | 6145 | relative_reloc = true; |
| ff07562f | 6146 | |
| a06ea964 NC |
6147 | value = aarch64_calculate_got_entry_vma (h, globals, info, value, |
| 6148 | output_bfd, | |
| 6149 | unresolved_reloc_p); | |
| ff07562f JW |
6150 | /* Record the GOT entry address which will be used when generating |
| 6151 | RELATIVE relocation. */ | |
| 6152 | if (relative_reloc) | |
| 6153 | got_entry_addr = value; | |
| 6154 | ||
| 2aff25ba | 6155 | if (aarch64_relocation_aginst_gp_p (bfd_r_type)) |
| 99ad26cb JW |
6156 | addend = (globals->root.sgot->output_section->vma |
| 6157 | + globals->root.sgot->output_offset); | |
| 652afeef TC |
6158 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6159 | place, value, | |
| 99ad26cb | 6160 | addend, weak_undef_p); |
| a06ea964 | 6161 | } |
| b53b1bed JW |
6162 | else |
| 6163 | { | |
| 99ad26cb | 6164 | bfd_vma addend = 0; |
| b53b1bed JW |
6165 | struct elf_aarch64_local_symbol *locals |
| 6166 | = elf_aarch64_locals (input_bfd); | |
| 6167 | ||
| 6168 | if (locals == NULL) | |
| 6169 | { | |
| 6170 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 4eca0228 | 6171 | _bfd_error_handler |
| 695344c0 | 6172 | /* xgettext:c-format */ |
| 90b6238f | 6173 | (_("%pB: local symbol descriptor table be NULL when applying " |
| b53b1bed JW |
6174 | "relocation %s against local symbol"), |
| 6175 | input_bfd, elfNN_aarch64_howto_table[howto_index].name); | |
| 6176 | abort (); | |
| 6177 | } | |
| 6178 | ||
| 6179 | off = symbol_got_offset (input_bfd, h, r_symndx); | |
| 6180 | base_got = globals->root.sgot; | |
| ff07562f JW |
6181 | got_entry_addr = (base_got->output_section->vma |
| 6182 | + base_got->output_offset + off); | |
| b53b1bed JW |
6183 | |
| 6184 | if (!symbol_got_offset_mark_p (input_bfd, h, r_symndx)) | |
| 6185 | { | |
| 6186 | bfd_put_64 (output_bfd, value, base_got->contents + off); | |
| 6187 | ||
| ff07562f JW |
6188 | /* For local symbol, we have done absolute relocation in static |
| 6189 | linking stage. While for shared library, we need to update the | |
| 6190 | content of GOT entry according to the shared object's runtime | |
| 6191 | base address. So, we need to generate a R_AARCH64_RELATIVE reloc | |
| 6192 | for dynamic linker. */ | |
| 0e1862bb | 6193 | if (bfd_link_pic (info)) |
| 0a1b45a2 | 6194 | relative_reloc = true; |
| b53b1bed JW |
6195 | |
| 6196 | symbol_got_offset_mark (input_bfd, h, r_symndx); | |
| 6197 | } | |
| 6198 | ||
| 6199 | /* Update the relocation value to GOT entry addr as we have transformed | |
| 6200 | the direct data access into indirect data access through GOT. */ | |
| 6201 | value = got_entry_addr; | |
| 99ad26cb | 6202 | |
| 2aff25ba | 6203 | if (aarch64_relocation_aginst_gp_p (bfd_r_type)) |
| 99ad26cb JW |
6204 | addend = base_got->output_section->vma + base_got->output_offset; |
| 6205 | ||
| 652afeef TC |
6206 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6207 | place, value, | |
| 99ad26cb | 6208 | addend, weak_undef_p); |
| b53b1bed | 6209 | } |
| ff07562f JW |
6210 | |
| 6211 | if (relative_reloc) | |
| 6212 | { | |
| 6213 | asection *s; | |
| 6214 | Elf_Internal_Rela outrel; | |
| 6215 | ||
| 6216 | s = globals->root.srelgot; | |
| 6217 | if (s == NULL) | |
| 6218 | abort (); | |
| 6219 | ||
| 6220 | outrel.r_offset = got_entry_addr; | |
| 6221 | outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE)); | |
| 6222 | outrel.r_addend = orig_value; | |
| 6223 | elf_append_rela (output_bfd, s, &outrel); | |
| 6224 | } | |
| a2e1db00 RL |
6225 | break; |
| 6226 | ||
| ce336788 | 6227 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a6bb11b2 | 6228 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 6229 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| a6bb11b2 | 6230 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a6bb11b2 | 6231 | case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: |
| ce336788 | 6232 | case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: |
| 043bf05a | 6233 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 73f925cc | 6234 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 6235 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 6236 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
6237 | if (globals->root.sgot == NULL) |
| 6238 | return bfd_reloc_notsupported; | |
| 6239 | ||
| 6240 | value = (symbol_got_offset (input_bfd, h, r_symndx) | |
| 6241 | + globals->root.sgot->output_section->vma | |
| f44a1f8e | 6242 | + globals->root.sgot->output_offset); |
| a06ea964 | 6243 | |
| 652afeef TC |
6244 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6245 | place, value, | |
| caed7120 | 6246 | 0, weak_undef_p); |
| 0a1b45a2 | 6247 | *unresolved_reloc_p = false; |
| a06ea964 NC |
6248 | break; |
| 6249 | ||
| 7ba7cfe4 | 6250 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 6251 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| 3b957e5b RL |
6252 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 6253 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| 94facae3 RL |
6254 | if (globals->root.sgot == NULL) |
| 6255 | return bfd_reloc_notsupported; | |
| 6256 | ||
| 6257 | value = symbol_got_offset (input_bfd, h, r_symndx); | |
| 652afeef TC |
6258 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6259 | place, value, | |
| 94facae3 | 6260 | 0, weak_undef_p); |
| 0a1b45a2 | 6261 | *unresolved_reloc_p = false; |
| 94facae3 RL |
6262 | break; |
| 6263 | ||
| 6ffe9a1b | 6264 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12: |
| 40fbed84 | 6265 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12: |
| 753999c1 | 6266 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC: |
| 07c9aa07 JW |
6267 | case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12: |
| 6268 | case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC: | |
| 6269 | case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12: | |
| 6270 | case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC: | |
| 6271 | case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12: | |
| 6272 | case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC: | |
| 6273 | case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12: | |
| 6274 | case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC: | |
| 6ffe9a1b JW |
6275 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0: |
| 6276 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: | |
| 6277 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1: | |
| 6278 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC: | |
| 6279 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2: | |
| 652afeef TC |
6280 | { |
| 6281 | if (!(weak_undef_p || elf_hash_table (info)->tls_sec)) | |
| 6282 | { | |
| 6283 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 6284 | _bfd_error_handler | |
| 6285 | /* xgettext:c-format */ | |
| 6286 | (_("%pB: TLS relocation %s against undefined symbol `%s'"), | |
| 6287 | input_bfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 6288 | h->root.root.string); | |
| 6289 | bfd_set_error (bfd_error_bad_value); | |
| 6290 | return bfd_reloc_notsupported; | |
| 6291 | } | |
| 6292 | ||
| 6293 | bfd_vma def_value | |
| 6294 | = weak_undef_p ? 0 : signed_addend - dtpoff_base (info); | |
| 6295 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, | |
| 6296 | place, value, | |
| 6297 | def_value, weak_undef_p); | |
| 6298 | break; | |
| 6299 | } | |
| 40fbed84 | 6300 | |
| a6bb11b2 YZ |
6301 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12: |
| 6302 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12: | |
| 6303 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC: | |
| e04ef022 RL |
6304 | case BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12: |
| 6305 | case BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12_NC: | |
| 6306 | case BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12: | |
| 6307 | case BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12_NC: | |
| 6308 | case BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12: | |
| 6309 | case BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12_NC: | |
| 6310 | case BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12: | |
| 6311 | case BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12_NC: | |
| a6bb11b2 YZ |
6312 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0: |
| 6313 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC: | |
| 6314 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1: | |
| 6315 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC: | |
| 6316 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2: | |
| 652afeef TC |
6317 | { |
| 6318 | if (!(weak_undef_p || elf_hash_table (info)->tls_sec)) | |
| 6319 | { | |
| 6320 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 6321 | _bfd_error_handler | |
| 6322 | /* xgettext:c-format */ | |
| 6323 | (_("%pB: TLS relocation %s against undefined symbol `%s'"), | |
| 6324 | input_bfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 6325 | h->root.root.string); | |
| 6326 | bfd_set_error (bfd_error_bad_value); | |
| 6327 | return bfd_reloc_notsupported; | |
| 6328 | } | |
| 6329 | ||
| 6330 | bfd_vma def_value | |
| 6331 | = weak_undef_p ? 0 : signed_addend - tpoff_base (info); | |
| 6332 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, | |
| 6333 | place, value, | |
| 6334 | def_value, weak_undef_p); | |
| 0a1b45a2 | 6335 | *unresolved_reloc_p = false; |
| 652afeef TC |
6336 | break; |
| 6337 | } | |
| a06ea964 | 6338 | |
| f955cccf | 6339 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 6340 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 6341 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| a6bb11b2 | 6342 | case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC: |
| f955cccf | 6343 | case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12: |
| 1ada945d | 6344 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| a06ea964 NC |
6345 | if (globals->root.sgot == NULL) |
| 6346 | return bfd_reloc_notsupported; | |
| a06ea964 NC |
6347 | value = (symbol_tlsdesc_got_offset (input_bfd, h, r_symndx) |
| 6348 | + globals->root.sgotplt->output_section->vma | |
| f44a1f8e | 6349 | + globals->root.sgotplt->output_offset |
| a06ea964 NC |
6350 | + globals->sgotplt_jump_table_size); |
| 6351 | ||
| 652afeef TC |
6352 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6353 | place, value, | |
| caed7120 | 6354 | 0, weak_undef_p); |
| 0a1b45a2 | 6355 | *unresolved_reloc_p = false; |
| a06ea964 NC |
6356 | break; |
| 6357 | ||
| 0484b454 RL |
6358 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
| 6359 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| 6360 | if (globals->root.sgot == NULL) | |
| 6361 | return bfd_reloc_notsupported; | |
| 6362 | ||
| 6363 | value = (symbol_tlsdesc_got_offset (input_bfd, h, r_symndx) | |
| 6364 | + globals->root.sgotplt->output_section->vma | |
| 6365 | + globals->root.sgotplt->output_offset | |
| 6366 | + globals->sgotplt_jump_table_size); | |
| 6367 | ||
| 6368 | value -= (globals->root.sgot->output_section->vma | |
| 6369 | + globals->root.sgot->output_offset); | |
| 6370 | ||
| 652afeef TC |
6371 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6372 | place, value, | |
| 0484b454 | 6373 | 0, weak_undef_p); |
| 0a1b45a2 | 6374 | *unresolved_reloc_p = false; |
| 0484b454 RL |
6375 | break; |
| 6376 | ||
| a06ea964 NC |
6377 | default: |
| 6378 | return bfd_reloc_notsupported; | |
| 6379 | } | |
| 6380 | ||
| 6381 | if (saved_addend) | |
| 6382 | *saved_addend = value; | |
| 6383 | ||
| 6384 | /* Only apply the final relocation in a sequence. */ | |
| 6385 | if (save_addend) | |
| 6386 | return bfd_reloc_continue; | |
| 6387 | ||
| caed7120 YZ |
6388 | return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type, |
| 6389 | howto, value); | |
| a06ea964 NC |
6390 | } |
| 6391 | ||
| 2d0ca824 YN |
6392 | /* LP64 and ILP32 operates on x- and w-registers respectively. |
| 6393 | Next definitions take into account the difference between | |
| 6394 | corresponding machine codes. R means x-register if the target | |
| 6395 | arch is LP64, and w-register if the target is ILP32. */ | |
| 6396 | ||
| 6397 | #if ARCH_SIZE == 64 | |
| 6398 | # define add_R0_R0 (0x91000000) | |
| 6399 | # define add_R0_R0_R1 (0x8b000020) | |
| 6400 | # define add_R0_R1 (0x91400020) | |
| 6401 | # define ldr_R0 (0x58000000) | |
| 6402 | # define ldr_R0_mask(i) (i & 0xffffffe0) | |
| 6403 | # define ldr_R0_x0 (0xf9400000) | |
| 6404 | # define ldr_hw_R0 (0xf2a00000) | |
| 6405 | # define movk_R0 (0xf2800000) | |
| 6406 | # define movz_R0 (0xd2a00000) | |
| 6407 | # define movz_hw_R0 (0xd2c00000) | |
| 6408 | #else /*ARCH_SIZE == 32 */ | |
| 6409 | # define add_R0_R0 (0x11000000) | |
| 6410 | # define add_R0_R0_R1 (0x0b000020) | |
| 6411 | # define add_R0_R1 (0x11400020) | |
| 6412 | # define ldr_R0 (0x18000000) | |
| 6413 | # define ldr_R0_mask(i) (i & 0xbfffffe0) | |
| 6414 | # define ldr_R0_x0 (0xb9400000) | |
| 6415 | # define ldr_hw_R0 (0x72a00000) | |
| 6416 | # define movk_R0 (0x72800000) | |
| 6417 | # define movz_R0 (0x52a00000) | |
| 6418 | # define movz_hw_R0 (0x52c00000) | |
| 6419 | #endif | |
| 6420 | ||
| 9fca35fc TC |
6421 | /* Structure to hold payload for _bfd_aarch64_erratum_843419_clear_stub, |
| 6422 | it is used to identify the stub information to reset. */ | |
| 6423 | ||
| 6424 | struct erratum_843419_branch_to_stub_clear_data | |
| 6425 | { | |
| 6426 | bfd_vma adrp_offset; | |
| 6427 | asection *output_section; | |
| 6428 | }; | |
| 6429 | ||
| 6430 | /* Clear the erratum information for GEN_ENTRY if the ADRP_OFFSET and | |
| 6431 | section inside IN_ARG matches. The clearing is done by setting the | |
| 6432 | stub_type to none. */ | |
| 6433 | ||
| 0a1b45a2 | 6434 | static bool |
| 9fca35fc TC |
6435 | _bfd_aarch64_erratum_843419_clear_stub (struct bfd_hash_entry *gen_entry, |
| 6436 | void *in_arg) | |
| 6437 | { | |
| 6438 | struct elf_aarch64_stub_hash_entry *stub_entry | |
| 6439 | = (struct elf_aarch64_stub_hash_entry *) gen_entry; | |
| 6440 | struct erratum_843419_branch_to_stub_clear_data *data | |
| 6441 | = (struct erratum_843419_branch_to_stub_clear_data *) in_arg; | |
| 6442 | ||
| 6443 | if (stub_entry->target_section != data->output_section | |
| 6444 | || stub_entry->stub_type != aarch64_stub_erratum_843419_veneer | |
| 6445 | || stub_entry->adrp_offset != data->adrp_offset) | |
| 0a1b45a2 | 6446 | return true; |
| 9fca35fc TC |
6447 | |
| 6448 | /* Change the stub type instead of removing the entry, removing from the hash | |
| 6449 | table would be slower and we have already reserved the memory for the entry | |
| 6450 | so there wouldn't be much gain. Changing the stub also keeps around a | |
| 6451 | record of what was there before. */ | |
| 6452 | stub_entry->stub_type = aarch64_stub_none; | |
| 6453 | ||
| 6454 | /* We're done and there could have been only one matching stub at that | |
| 6455 | particular offset, so abort further traversal. */ | |
| 0a1b45a2 | 6456 | return false; |
| 9fca35fc TC |
6457 | } |
| 6458 | ||
| 6459 | /* TLS Relaxations may relax an adrp sequence that matches the erratum 843419 | |
| 6460 | sequence. In this case the erratum no longer applies and we need to remove | |
| 6461 | the entry from the pending stub generation. This clears matching adrp insn | |
| 6462 | at ADRP_OFFSET in INPUT_SECTION in the stub table defined in GLOBALS. */ | |
| 6463 | ||
| 6464 | static void | |
| 6465 | clear_erratum_843419_entry (struct elf_aarch64_link_hash_table *globals, | |
| 6466 | bfd_vma adrp_offset, asection *input_section) | |
| 6467 | { | |
| 739b5c9c | 6468 | if (globals->fix_erratum_843419 & ERRAT_ADRP) |
| 9fca35fc TC |
6469 | { |
| 6470 | struct erratum_843419_branch_to_stub_clear_data data; | |
| 6471 | data.adrp_offset = adrp_offset; | |
| 6472 | data.output_section = input_section; | |
| 6473 | ||
| 6474 | bfd_hash_traverse (&globals->stub_hash_table, | |
| 6475 | _bfd_aarch64_erratum_843419_clear_stub, &data); | |
| 6476 | } | |
| 6477 | } | |
| 6478 | ||
| a06ea964 NC |
6479 | /* Handle TLS relaxations. Relaxing is possible for symbols that use |
| 6480 | R_AARCH64_TLSDESC_ADR_{PAGE, LD64_LO12_NC, ADD_LO12_NC} during a static | |
| 6481 | link. | |
| 6482 | ||
| 6483 | Return bfd_reloc_ok if we're done, bfd_reloc_continue if the caller | |
| 6484 | is to then call final_link_relocate. Return other values in the | |
| 6485 | case of error. */ | |
| 6486 | ||
| 6487 | static bfd_reloc_status_type | |
| cec5225b | 6488 | elfNN_aarch64_tls_relax (struct elf_aarch64_link_hash_table *globals, |
| 9fca35fc TC |
6489 | bfd *input_bfd, asection *input_section, |
| 6490 | bfd_byte *contents, Elf_Internal_Rela *rel, | |
| 976f1663 MM |
6491 | struct elf_link_hash_entry *h, |
| 6492 | struct bfd_link_info *info) | |
| a06ea964 | 6493 | { |
| 976f1663 MM |
6494 | bool local_exec = bfd_link_executable (info) |
| 6495 | && SYMBOL_REFERENCES_LOCAL (info, h); | |
| cec5225b | 6496 | unsigned int r_type = ELFNN_R_TYPE (rel->r_info); |
| a06ea964 NC |
6497 | unsigned long insn; |
| 6498 | ||
| 6499 | BFD_ASSERT (globals && input_bfd && contents && rel); | |
| 6500 | ||
| 0aa13fee | 6501 | switch (elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type)) |
| a06ea964 | 6502 | { |
| a6bb11b2 | 6503 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| ce336788 | 6504 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 976f1663 | 6505 | if (local_exec) |
| a06ea964 NC |
6506 | { |
| 6507 | /* GD->LE relaxation: | |
| 2d0ca824 | 6508 | adrp x0, :tlsgd:var => movz R0, :tprel_g1:var |
| a06ea964 | 6509 | or |
| 2d0ca824 YN |
6510 | adrp x0, :tlsdesc:var => movz R0, :tprel_g1:var |
| 6511 | ||
| 6512 | Where R is x for LP64, and w for ILP32. */ | |
| 6513 | bfd_putl32 (movz_R0, contents + rel->r_offset); | |
| 9fca35fc TC |
6514 | /* We have relaxed the adrp into a mov, we may have to clear any |
| 6515 | pending erratum fixes. */ | |
| 6516 | clear_erratum_843419_entry (globals, rel->r_offset, input_section); | |
| a06ea964 NC |
6517 | return bfd_reloc_continue; |
| 6518 | } | |
| 6519 | else | |
| 6520 | { | |
| 6521 | /* GD->IE relaxation: | |
| 6522 | adrp x0, :tlsgd:var => adrp x0, :gottprel:var | |
| 6523 | or | |
| 6524 | adrp x0, :tlsdesc:var => adrp x0, :gottprel:var | |
| 6525 | */ | |
| a06ea964 NC |
6526 | return bfd_reloc_continue; |
| 6527 | } | |
| 6528 | ||
| 389b8029 MS |
6529 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| 6530 | BFD_ASSERT (0); | |
| 6531 | break; | |
| 6532 | ||
| 1ada945d | 6533 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 976f1663 | 6534 | if (local_exec) |
| 1ada945d MS |
6535 | { |
| 6536 | /* Tiny TLSDESC->LE relaxation: | |
| 07d6d2b8 AM |
6537 | ldr x1, :tlsdesc:var => movz R0, #:tprel_g1:var |
| 6538 | adr x0, :tlsdesc:var => movk R0, #:tprel_g0_nc:var | |
| 1ada945d | 6539 | .tlsdesccall var |
| 07d6d2b8 | 6540 | blr x1 => nop |
| 2d0ca824 YN |
6541 | |
| 6542 | Where R is x for LP64, and w for ILP32. */ | |
| 1ada945d MS |
6543 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21)); |
| 6544 | BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (TLSDESC_CALL)); | |
| 6545 | ||
| 6546 | rel[1].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6547 | AARCH64_R (TLSLE_MOVW_TPREL_G0_NC)); | |
| 6548 | rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6549 | ||
| 2d0ca824 YN |
6550 | bfd_putl32 (movz_R0, contents + rel->r_offset); |
| 6551 | bfd_putl32 (movk_R0, contents + rel->r_offset + 4); | |
| 1ada945d MS |
6552 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 8); |
| 6553 | return bfd_reloc_continue; | |
| 6554 | } | |
| 6555 | else | |
| 6556 | { | |
| 6557 | /* Tiny TLSDESC->IE relaxation: | |
| 07d6d2b8 AM |
6558 | ldr x1, :tlsdesc:var => ldr x0, :gottprel:var |
| 6559 | adr x0, :tlsdesc:var => nop | |
| 1ada945d | 6560 | .tlsdesccall var |
| 07d6d2b8 | 6561 | blr x1 => nop |
| 1ada945d MS |
6562 | */ |
| 6563 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21)); | |
| 6564 | BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (TLSDESC_CALL)); | |
| 6565 | ||
| 6566 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6567 | rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6568 | ||
| 2d0ca824 | 6569 | bfd_putl32 (ldr_R0, contents + rel->r_offset); |
| 1ada945d MS |
6570 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 4); |
| 6571 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 8); | |
| 6572 | return bfd_reloc_continue; | |
| 6573 | } | |
| 6574 | ||
| 3c12b054 | 6575 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 976f1663 | 6576 | if (local_exec) |
| 3c12b054 MS |
6577 | { |
| 6578 | /* Tiny GD->LE relaxation: | |
| 07d6d2b8 AM |
6579 | adr x0, :tlsgd:var => mrs x1, tpidr_el0 |
| 6580 | bl __tls_get_addr => add R0, R1, #:tprel_hi12:x, lsl #12 | |
| 6581 | nop => add R0, R0, #:tprel_lo12_nc:x | |
| 2d0ca824 YN |
6582 | |
| 6583 | Where R is x for LP64, and x for Ilp32. */ | |
| 3c12b054 MS |
6584 | |
| 6585 | /* First kill the tls_get_addr reloc on the bl instruction. */ | |
| 6586 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6587 | ||
| 6588 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 0); | |
| 2d0ca824 YN |
6589 | bfd_putl32 (add_R0_R1, contents + rel->r_offset + 4); |
| 6590 | bfd_putl32 (add_R0_R0, contents + rel->r_offset + 8); | |
| 3c12b054 MS |
6591 | |
| 6592 | rel[1].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6593 | AARCH64_R (TLSLE_ADD_TPREL_LO12_NC)); | |
| 6594 | rel[1].r_offset = rel->r_offset + 8; | |
| 6595 | ||
| 6596 | /* Move the current relocation to the second instruction in | |
| 6597 | the sequence. */ | |
| 6598 | rel->r_offset += 4; | |
| 6599 | rel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6600 | AARCH64_R (TLSLE_ADD_TPREL_HI12)); | |
| 6601 | return bfd_reloc_continue; | |
| 6602 | } | |
| 6603 | else | |
| 6604 | { | |
| 6605 | /* Tiny GD->IE relaxation: | |
| 07d6d2b8 AM |
6606 | adr x0, :tlsgd:var => ldr R0, :gottprel:var |
| 6607 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6608 | nop => add R0, R0, R1 | |
| 2d0ca824 YN |
6609 | |
| 6610 | Where R is x for LP64, and w for Ilp32. */ | |
| 3c12b054 MS |
6611 | |
| 6612 | /* First kill the tls_get_addr reloc on the bl instruction. */ | |
| 6613 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6614 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6615 | ||
| 2d0ca824 | 6616 | bfd_putl32 (ldr_R0, contents + rel->r_offset); |
| 3c12b054 | 6617 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 4); |
| 2d0ca824 | 6618 | bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 8); |
| 3c12b054 MS |
6619 | return bfd_reloc_continue; |
| 6620 | } | |
| 6621 | ||
| ac734732 RL |
6622 | #if ARCH_SIZE == 64 |
| 6623 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: | |
| 6624 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSGD_MOVW_G0_NC)); | |
| 6625 | BFD_ASSERT (rel->r_offset + 12 == rel[2].r_offset); | |
| 6626 | BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (CALL26)); | |
| 6627 | ||
| 976f1663 | 6628 | if (local_exec) |
| ac734732 RL |
6629 | { |
| 6630 | /* Large GD->LE relaxation: | |
| 07d6d2b8 | 6631 | movz x0, #:tlsgd_g1:var => movz x0, #:tprel_g2:var, lsl #32 |
| ac734732 | 6632 | movk x0, #:tlsgd_g0_nc:var => movk x0, #:tprel_g1_nc:var, lsl #16 |
| 07d6d2b8 AM |
6633 | add x0, gp, x0 => movk x0, #:tprel_g0_nc:var |
| 6634 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6635 | nop => add x0, x0, x1 | |
| ac734732 RL |
6636 | */ |
| 6637 | rel[2].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6638 | AARCH64_R (TLSLE_MOVW_TPREL_G0_NC)); | |
| 6639 | rel[2].r_offset = rel->r_offset + 8; | |
| 6640 | ||
| 2d0ca824 YN |
6641 | bfd_putl32 (movz_hw_R0, contents + rel->r_offset + 0); |
| 6642 | bfd_putl32 (ldr_hw_R0, contents + rel->r_offset + 4); | |
| 6643 | bfd_putl32 (movk_R0, contents + rel->r_offset + 8); | |
| ac734732 | 6644 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 12); |
| 2d0ca824 | 6645 | bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 16); |
| ac734732 RL |
6646 | } |
| 6647 | else | |
| 6648 | { | |
| 6649 | /* Large GD->IE relaxation: | |
| 07d6d2b8 | 6650 | movz x0, #:tlsgd_g1:var => movz x0, #:gottprel_g1:var, lsl #16 |
| ac734732 | 6651 | movk x0, #:tlsgd_g0_nc:var => movk x0, #:gottprel_g0_nc:var |
| 07d6d2b8 AM |
6652 | add x0, gp, x0 => ldr x0, [gp, x0] |
| 6653 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6654 | nop => add x0, x0, x1 | |
| ac734732 RL |
6655 | */ |
| 6656 | rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6657 | bfd_putl32 (0xd2a80000, contents + rel->r_offset + 0); | |
| 2d0ca824 | 6658 | bfd_putl32 (ldr_R0, contents + rel->r_offset + 8); |
| ac734732 | 6659 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 12); |
| 2d0ca824 | 6660 | bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 16); |
| ac734732 RL |
6661 | } |
| 6662 | return bfd_reloc_continue; | |
| 6663 | ||
| 6664 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: | |
| 6665 | return bfd_reloc_continue; | |
| 6666 | #endif | |
| 6667 | ||
| 043bf05a MS |
6668 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 6669 | return bfd_reloc_continue; | |
| 6670 | ||
| a6bb11b2 | 6671 | case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC: |
| 976f1663 | 6672 | if (local_exec) |
| a06ea964 NC |
6673 | { |
| 6674 | /* GD->LE relaxation: | |
| 6675 | ldr xd, [x0, #:tlsdesc_lo12:var] => movk x0, :tprel_g0_nc:var | |
| 2d0ca824 YN |
6676 | |
| 6677 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 6678 | bfd_putl32 (movk_R0, contents + rel->r_offset); | |
| a06ea964 NC |
6679 | return bfd_reloc_continue; |
| 6680 | } | |
| 6681 | else | |
| 6682 | { | |
| 6683 | /* GD->IE relaxation: | |
| 2d0ca824 YN |
6684 | ldr xd, [x0, #:tlsdesc_lo12:var] => ldr R0, [x0, #:gottprel_lo12:var] |
| 6685 | ||
| 6686 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| a06ea964 | 6687 | insn = bfd_getl32 (contents + rel->r_offset); |
| 2d0ca824 | 6688 | bfd_putl32 (ldr_R0_mask (insn), contents + rel->r_offset); |
| a06ea964 NC |
6689 | return bfd_reloc_continue; |
| 6690 | } | |
| 6691 | ||
| a6bb11b2 | 6692 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| 976f1663 | 6693 | if (local_exec) |
| a06ea964 NC |
6694 | { |
| 6695 | /* GD->LE relaxation | |
| 07d6d2b8 AM |
6696 | add x0, #:tlsgd_lo12:var => movk R0, :tprel_g0_nc:var |
| 6697 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6698 | nop => add R0, R1, R0 | |
| 2d0ca824 YN |
6699 | |
| 6700 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| a06ea964 NC |
6701 | |
| 6702 | /* First kill the tls_get_addr reloc on the bl instruction. */ | |
| 6703 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| cec5225b | 6704 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); |
| a06ea964 | 6705 | |
| 2d0ca824 | 6706 | bfd_putl32 (movk_R0, contents + rel->r_offset); |
| a06ea964 | 6707 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 4); |
| 2d0ca824 | 6708 | bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 8); |
| a06ea964 NC |
6709 | return bfd_reloc_continue; |
| 6710 | } | |
| 6711 | else | |
| 6712 | { | |
| 6713 | /* GD->IE relaxation | |
| 07d6d2b8 AM |
6714 | ADD x0, #:tlsgd_lo12:var => ldr R0, [x0, #:gottprel_lo12:var] |
| 6715 | BL __tls_get_addr => mrs x1, tpidr_el0 | |
| a06ea964 | 6716 | R_AARCH64_CALL26 |
| 07d6d2b8 | 6717 | NOP => add R0, R1, R0 |
| 5cd1d8bc YN |
6718 | |
| 6719 | Where R is x for lp64 mode, and w for ilp32 mode. */ | |
| a06ea964 | 6720 | |
| a6bb11b2 | 6721 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26)); |
| a06ea964 NC |
6722 | |
| 6723 | /* Remove the relocation on the BL instruction. */ | |
| cec5225b | 6724 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); |
| a06ea964 | 6725 | |
| a06ea964 NC |
6726 | /* We choose to fixup the BL and NOP instructions using the |
| 6727 | offset from the second relocation to allow flexibility in | |
| 6728 | scheduling instructions between the ADD and BL. */ | |
| 2d0ca824 | 6729 | bfd_putl32 (ldr_R0_x0, contents + rel->r_offset); |
| 5cd1d8bc | 6730 | bfd_putl32 (0xd53bd041, contents + rel[1].r_offset); |
| 2d0ca824 | 6731 | bfd_putl32 (add_R0_R0_R1, contents + rel[1].r_offset + 4); |
| a06ea964 NC |
6732 | return bfd_reloc_continue; |
| 6733 | } | |
| 6734 | ||
| 0484b454 | 6735 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| f955cccf | 6736 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 6737 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| a06ea964 | 6738 | /* GD->IE/LE relaxation: |
| 07d6d2b8 AM |
6739 | add x0, x0, #:tlsdesc_lo12:var => nop |
| 6740 | blr xd => nop | |
| a06ea964 NC |
6741 | */ |
| 6742 | bfd_putl32 (INSN_NOP, contents + rel->r_offset); | |
| 6743 | return bfd_reloc_ok; | |
| 6744 | ||
| 0484b454 | 6745 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| 976f1663 | 6746 | if (local_exec) |
| 0484b454 RL |
6747 | { |
| 6748 | /* GD->LE relaxation: | |
| 2d0ca824 YN |
6749 | ldr xd, [gp, xn] => movk R0, #:tprel_g0_nc:var |
| 6750 | ||
| 6751 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 6752 | bfd_putl32 (movk_R0, contents + rel->r_offset); | |
| 0484b454 RL |
6753 | return bfd_reloc_continue; |
| 6754 | } | |
| 6755 | else | |
| 6756 | { | |
| 6757 | /* GD->IE relaxation: | |
| 2d0ca824 YN |
6758 | ldr xd, [gp, xn] => ldr R0, [gp, xn] |
| 6759 | ||
| 6760 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 0484b454 | 6761 | insn = bfd_getl32 (contents + rel->r_offset); |
| 2d0ca824 | 6762 | bfd_putl32 (ldr_R0_mask (insn), contents + rel->r_offset); |
| 0484b454 RL |
6763 | return bfd_reloc_ok; |
| 6764 | } | |
| 6765 | ||
| 6766 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: | |
| 6767 | /* GD->LE relaxation: | |
| 2d0ca824 | 6768 | movk xd, #:tlsdesc_off_g0_nc:var => movk R0, #:tprel_g1_nc:var, lsl #16 |
| 0484b454 | 6769 | GD->IE relaxation: |
| 2d0ca824 YN |
6770 | movk xd, #:tlsdesc_off_g0_nc:var => movk Rd, #:gottprel_g0_nc:var |
| 6771 | ||
| 6772 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 976f1663 | 6773 | if (local_exec) |
| 2d0ca824 | 6774 | bfd_putl32 (ldr_hw_R0, contents + rel->r_offset); |
| 0484b454 RL |
6775 | return bfd_reloc_continue; |
| 6776 | ||
| 6777 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| 976f1663 | 6778 | if (local_exec) |
| 0484b454 RL |
6779 | { |
| 6780 | /* GD->LE relaxation: | |
| 2d0ca824 YN |
6781 | movz xd, #:tlsdesc_off_g1:var => movz R0, #:tprel_g2:var, lsl #32 |
| 6782 | ||
| 6783 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 6784 | bfd_putl32 (movz_hw_R0, contents + rel->r_offset); | |
| 0484b454 RL |
6785 | return bfd_reloc_continue; |
| 6786 | } | |
| 6787 | else | |
| 6788 | { | |
| 6789 | /* GD->IE relaxation: | |
| 2d0ca824 YN |
6790 | movz xd, #:tlsdesc_off_g1:var => movz Rd, #:gottprel_g1:var, lsl #16 |
| 6791 | ||
| 6792 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 0484b454 | 6793 | insn = bfd_getl32 (contents + rel->r_offset); |
| 2d0ca824 | 6794 | bfd_putl32 (movz_R0 | (insn & 0x1f), contents + rel->r_offset); |
| 0484b454 RL |
6795 | return bfd_reloc_continue; |
| 6796 | } | |
| 6797 | ||
| a6bb11b2 | 6798 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a06ea964 | 6799 | /* IE->LE relaxation: |
| 07d6d2b8 | 6800 | adrp xd, :gottprel:var => movz Rd, :tprel_g1:var |
| 2d0ca824 YN |
6801 | |
| 6802 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 976f1663 | 6803 | if (local_exec) |
| a06ea964 NC |
6804 | { |
| 6805 | insn = bfd_getl32 (contents + rel->r_offset); | |
| 2d0ca824 | 6806 | bfd_putl32 (movz_R0 | (insn & 0x1f), contents + rel->r_offset); |
| 9fca35fc TC |
6807 | /* We have relaxed the adrp into a mov, we may have to clear any |
| 6808 | pending erratum fixes. */ | |
| 6809 | clear_erratum_843419_entry (globals, rel->r_offset, input_section); | |
| a06ea964 NC |
6810 | } |
| 6811 | return bfd_reloc_continue; | |
| 6812 | ||
| a6bb11b2 | 6813 | case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC: |
| a06ea964 | 6814 | /* IE->LE relaxation: |
| 07d6d2b8 | 6815 | ldr xd, [xm, #:gottprel_lo12:var] => movk Rd, :tprel_g0_nc:var |
| 2d0ca824 YN |
6816 | |
| 6817 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 976f1663 | 6818 | if (local_exec) |
| a06ea964 NC |
6819 | { |
| 6820 | insn = bfd_getl32 (contents + rel->r_offset); | |
| 2d0ca824 | 6821 | bfd_putl32 (movk_R0 | (insn & 0x1f), contents + rel->r_offset); |
| a06ea964 NC |
6822 | } |
| 6823 | return bfd_reloc_continue; | |
| 6824 | ||
| 259364ad JW |
6825 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| 6826 | /* LD->LE relaxation (tiny): | |
| 6827 | adr x0, :tlsldm:x => mrs x0, tpidr_el0 | |
| c1fc2d7e YN |
6828 | bl __tls_get_addr => add R0, R0, TCB_SIZE |
| 6829 | ||
| 6830 | Where R is x for lp64 mode, and w for ilp32 mode. */ | |
| 976f1663 | 6831 | if (local_exec) |
| 259364ad JW |
6832 | { |
| 6833 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6834 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26)); | |
| 6835 | /* No need of CALL26 relocation for tls_get_addr. */ | |
| 6836 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6837 | bfd_putl32 (0xd53bd040, contents + rel->r_offset + 0); | |
| 2d0ca824 YN |
6838 | bfd_putl32 (add_R0_R0 | (TCB_SIZE << 10), |
| 6839 | contents + rel->r_offset + 4); | |
| 259364ad JW |
6840 | return bfd_reloc_ok; |
| 6841 | } | |
| 6842 | return bfd_reloc_continue; | |
| 6843 | ||
| 6844 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: | |
| 6845 | /* LD->LE relaxation (small): | |
| 6846 | adrp x0, :tlsldm:x => mrs x0, tpidr_el0 | |
| 6847 | */ | |
| 976f1663 | 6848 | if (local_exec) |
| 259364ad JW |
6849 | { |
| 6850 | bfd_putl32 (0xd53bd040, contents + rel->r_offset); | |
| 6851 | return bfd_reloc_ok; | |
| 6852 | } | |
| 6853 | return bfd_reloc_continue; | |
| 6854 | ||
| 6855 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: | |
| 6856 | /* LD->LE relaxation (small): | |
| c1fc2d7e | 6857 | add x0, #:tlsldm_lo12:x => add R0, R0, TCB_SIZE |
| 259364ad | 6858 | bl __tls_get_addr => nop |
| c1fc2d7e YN |
6859 | |
| 6860 | Where R is x for lp64 mode, and w for ilp32 mode. */ | |
| 976f1663 | 6861 | if (local_exec) |
| 259364ad JW |
6862 | { |
| 6863 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6864 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26)); | |
| 6865 | /* No need of CALL26 relocation for tls_get_addr. */ | |
| 6866 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 2d0ca824 YN |
6867 | bfd_putl32 (add_R0_R0 | (TCB_SIZE << 10), |
| 6868 | contents + rel->r_offset + 0); | |
| c1fc2d7e | 6869 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 4); |
| 259364ad JW |
6870 | return bfd_reloc_ok; |
| 6871 | } | |
| 6872 | return bfd_reloc_continue; | |
| 6873 | ||
| a06ea964 NC |
6874 | default: |
| 6875 | return bfd_reloc_continue; | |
| 6876 | } | |
| 6877 | ||
| 6878 | return bfd_reloc_ok; | |
| 6879 | } | |
| 6880 | ||
| 6881 | /* Relocate an AArch64 ELF section. */ | |
| 6882 | ||
| 0f684201 | 6883 | static int |
| cec5225b | 6884 | elfNN_aarch64_relocate_section (bfd *output_bfd, |
| a06ea964 NC |
6885 | struct bfd_link_info *info, |
| 6886 | bfd *input_bfd, | |
| 6887 | asection *input_section, | |
| 6888 | bfd_byte *contents, | |
| 6889 | Elf_Internal_Rela *relocs, | |
| 6890 | Elf_Internal_Sym *local_syms, | |
| 6891 | asection **local_sections) | |
| 6892 | { | |
| 6893 | Elf_Internal_Shdr *symtab_hdr; | |
| 6894 | struct elf_link_hash_entry **sym_hashes; | |
| 6895 | Elf_Internal_Rela *rel; | |
| 6896 | Elf_Internal_Rela *relend; | |
| 6897 | const char *name; | |
| cec5225b | 6898 | struct elf_aarch64_link_hash_table *globals; |
| 0a1b45a2 | 6899 | bool save_addend = false; |
| a06ea964 NC |
6900 | bfd_vma addend = 0; |
| 6901 | ||
| cec5225b | 6902 | globals = elf_aarch64_hash_table (info); |
| a06ea964 NC |
6903 | |
| 6904 | symtab_hdr = &elf_symtab_hdr (input_bfd); | |
| 6905 | sym_hashes = elf_sym_hashes (input_bfd); | |
| 6906 | ||
| 6907 | rel = relocs; | |
| 6908 | relend = relocs + input_section->reloc_count; | |
| 6909 | for (; rel < relend; rel++) | |
| 6910 | { | |
| 6911 | unsigned int r_type; | |
| a6bb11b2 YZ |
6912 | bfd_reloc_code_real_type bfd_r_type; |
| 6913 | bfd_reloc_code_real_type relaxed_bfd_r_type; | |
| a06ea964 NC |
6914 | reloc_howto_type *howto; |
| 6915 | unsigned long r_symndx; | |
| 6916 | Elf_Internal_Sym *sym; | |
| 6917 | asection *sec; | |
| 6918 | struct elf_link_hash_entry *h; | |
| 6919 | bfd_vma relocation; | |
| 6920 | bfd_reloc_status_type r; | |
| 6921 | arelent bfd_reloc; | |
| 6922 | char sym_type; | |
| 0a1b45a2 | 6923 | bool unresolved_reloc = false; |
| a06ea964 NC |
6924 | char *error_message = NULL; |
| 6925 | ||
| cec5225b YZ |
6926 | r_symndx = ELFNN_R_SYM (rel->r_info); |
| 6927 | r_type = ELFNN_R_TYPE (rel->r_info); | |
| a06ea964 | 6928 | |
| 0aa13fee AM |
6929 | bfd_reloc.howto = elfNN_aarch64_howto_from_type (input_bfd, r_type); |
| 6930 | howto = bfd_reloc.howto; | |
| a06ea964 | 6931 | |
| 7fcfd62d | 6932 | if (howto == NULL) |
| 47aeb64c NC |
6933 | return _bfd_unrecognized_reloc (input_bfd, input_section, r_type); |
| 6934 | ||
| a6bb11b2 | 6935 | bfd_r_type = elfNN_aarch64_bfd_reloc_from_howto (howto); |
| 7fcfd62d | 6936 | |
| a06ea964 NC |
6937 | h = NULL; |
| 6938 | sym = NULL; | |
| 6939 | sec = NULL; | |
| 6940 | ||
| 6941 | if (r_symndx < symtab_hdr->sh_info) | |
| 6942 | { | |
| 6943 | sym = local_syms + r_symndx; | |
| cec5225b | 6944 | sym_type = ELFNN_ST_TYPE (sym->st_info); |
| a06ea964 NC |
6945 | sec = local_sections[r_symndx]; |
| 6946 | ||
| 6947 | /* An object file might have a reference to a local | |
| 6948 | undefined symbol. This is a daft object file, but we | |
| af9eb2ee JB |
6949 | should at least do something about it. NONE and NULL |
| 6950 | relocations do not use the symbol and are explicitly | |
| 6951 | allowed to use an undefined one, so allow those. | |
| 6952 | Likewise for relocations against STN_UNDEF. */ | |
| a06ea964 | 6953 | if (r_type != R_AARCH64_NONE && r_type != R_AARCH64_NULL |
| af9eb2ee | 6954 | && r_symndx != STN_UNDEF |
| a06ea964 NC |
6955 | && bfd_is_und_section (sec) |
| 6956 | && ELF_ST_BIND (sym->st_info) != STB_WEAK) | |
| 1a72702b AM |
6957 | (*info->callbacks->undefined_symbol) |
| 6958 | (info, bfd_elf_string_from_elf_section | |
| 6959 | (input_bfd, symtab_hdr->sh_link, sym->st_name), | |
| 0a1b45a2 | 6960 | input_bfd, input_section, rel->r_offset, true); |
| a06ea964 | 6961 | |
| a06ea964 | 6962 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 1419bbe5 WN |
6963 | |
| 6964 | /* Relocate against local STT_GNU_IFUNC symbol. */ | |
| 0e1862bb | 6965 | if (!bfd_link_relocatable (info) |
| 1419bbe5 WN |
6966 | && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) |
| 6967 | { | |
| 6968 | h = elfNN_aarch64_get_local_sym_hash (globals, input_bfd, | |
| 0a1b45a2 | 6969 | rel, false); |
| 1419bbe5 WN |
6970 | if (h == NULL) |
| 6971 | abort (); | |
| 6972 | ||
| 6973 | /* Set STT_GNU_IFUNC symbol value. */ | |
| 6974 | h->root.u.def.value = sym->st_value; | |
| 6975 | h->root.u.def.section = sec; | |
| 6976 | } | |
| a06ea964 NC |
6977 | } |
| 6978 | else | |
| 6979 | { | |
| 0a1b45a2 | 6980 | bool warned, ignored; |
| a06ea964 NC |
6981 | |
| 6982 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
| 6983 | r_symndx, symtab_hdr, sym_hashes, | |
| 6984 | h, sec, relocation, | |
| 62d887d4 | 6985 | unresolved_reloc, warned, ignored); |
| a06ea964 NC |
6986 | |
| 6987 | sym_type = h->type; | |
| 6988 | } | |
| 6989 | ||
| 6990 | if (sec != NULL && discarded_section (sec)) | |
| 6991 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, | |
| 6992 | rel, 1, relend, howto, 0, contents); | |
| 6993 | ||
| 0e1862bb | 6994 | if (bfd_link_relocatable (info)) |
| 2e0488d3 | 6995 | continue; |
| a06ea964 NC |
6996 | |
| 6997 | if (h != NULL) | |
| 6998 | name = h->root.root.string; | |
| 6999 | else | |
| 7000 | { | |
| 7001 | name = (bfd_elf_string_from_elf_section | |
| 7002 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
| 7003 | if (name == NULL || *name == '\0') | |
| fd361982 | 7004 | name = bfd_section_name (sec); |
| a06ea964 NC |
7005 | } |
| 7006 | ||
| 7007 | if (r_symndx != 0 | |
| 7008 | && r_type != R_AARCH64_NONE | |
| 7009 | && r_type != R_AARCH64_NULL | |
| 7010 | && (h == NULL | |
| 7011 | || h->root.type == bfd_link_hash_defined | |
| 7012 | || h->root.type == bfd_link_hash_defweak) | |
| a6bb11b2 | 7013 | && IS_AARCH64_TLS_RELOC (bfd_r_type) != (sym_type == STT_TLS)) |
| a06ea964 | 7014 | { |
| 4eca0228 | 7015 | _bfd_error_handler |
| a06ea964 | 7016 | ((sym_type == STT_TLS |
| 695344c0 | 7017 | /* xgettext:c-format */ |
| 2dcf00ce | 7018 | ? _("%pB(%pA+%#" PRIx64 "): %s used with TLS symbol %s") |
| 695344c0 | 7019 | /* xgettext:c-format */ |
| 2dcf00ce | 7020 | : _("%pB(%pA+%#" PRIx64 "): %s used with non-TLS symbol %s")), |
| a06ea964 | 7021 | input_bfd, |
| 2dcf00ce | 7022 | input_section, (uint64_t) rel->r_offset, howto->name, name); |
| a06ea964 NC |
7023 | } |
| 7024 | ||
| a06ea964 | 7025 | /* We relax only if we can see that there can be a valid transition |
| 07d6d2b8 AM |
7026 | from a reloc type to another. |
| 7027 | We call elfNN_aarch64_final_link_relocate unless we're completely | |
| 7028 | done, i.e., the relaxation produced the final output we want. */ | |
| a06ea964 | 7029 | |
| a6bb11b2 YZ |
7030 | relaxed_bfd_r_type = aarch64_tls_transition (input_bfd, info, r_type, |
| 7031 | h, r_symndx); | |
| 7032 | if (relaxed_bfd_r_type != bfd_r_type) | |
| a06ea964 | 7033 | { |
| a6bb11b2 YZ |
7034 | bfd_r_type = relaxed_bfd_r_type; |
| 7035 | howto = elfNN_aarch64_howto_from_bfd_reloc (bfd_r_type); | |
| 7036 | BFD_ASSERT (howto != NULL); | |
| 7037 | r_type = howto->type; | |
| 9fca35fc | 7038 | r = elfNN_aarch64_tls_relax (globals, input_bfd, input_section, |
| 976f1663 | 7039 | contents, rel, h, info); |
| a06ea964 NC |
7040 | unresolved_reloc = 0; |
| 7041 | } | |
| 7042 | else | |
| 7043 | r = bfd_reloc_continue; | |
| 7044 | ||
| 7045 | /* There may be multiple consecutive relocations for the | |
| 07d6d2b8 AM |
7046 | same offset. In that case we are supposed to treat the |
| 7047 | output of each relocation as the addend for the next. */ | |
| a06ea964 NC |
7048 | if (rel + 1 < relend |
| 7049 | && rel->r_offset == rel[1].r_offset | |
| cec5225b YZ |
7050 | && ELFNN_R_TYPE (rel[1].r_info) != R_AARCH64_NONE |
| 7051 | && ELFNN_R_TYPE (rel[1].r_info) != R_AARCH64_NULL) | |
| 0a1b45a2 | 7052 | save_addend = true; |
| a06ea964 | 7053 | else |
| 0a1b45a2 | 7054 | save_addend = false; |
| a06ea964 NC |
7055 | |
| 7056 | if (r == bfd_reloc_continue) | |
| cec5225b | 7057 | r = elfNN_aarch64_final_link_relocate (howto, input_bfd, output_bfd, |
| a06ea964 NC |
7058 | input_section, contents, rel, |
| 7059 | relocation, info, sec, | |
| 7060 | h, &unresolved_reloc, | |
| 1419bbe5 | 7061 | save_addend, &addend, sym); |
| a06ea964 | 7062 | |
| 0aa13fee | 7063 | switch (elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type)) |
| a06ea964 | 7064 | { |
| ce336788 | 7065 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a6bb11b2 | 7066 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 7067 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 7ba7cfe4 | 7068 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 7069 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| 73f925cc | 7070 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 7071 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 7072 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
7073 | if (! symbol_got_offset_mark_p (input_bfd, h, r_symndx)) |
| 7074 | { | |
| 0a1b45a2 | 7075 | bool need_relocs = false; |
| a06ea964 NC |
7076 | bfd_byte *loc; |
| 7077 | int indx; | |
| 7078 | bfd_vma off; | |
| 7079 | ||
| 7080 | off = symbol_got_offset (input_bfd, h, r_symndx); | |
| 7081 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
| 7082 | ||
| 7083 | need_relocs = | |
| 6dda7875 | 7084 | (!bfd_link_executable (info) || indx != 0) && |
| a06ea964 NC |
7085 | (h == NULL |
| 7086 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 7087 | || h->root.type != bfd_link_hash_undefweak); | |
| 7088 | ||
| 7089 | BFD_ASSERT (globals->root.srelgot != NULL); | |
| 7090 | ||
| 7091 | if (need_relocs) | |
| 7092 | { | |
| 7093 | Elf_Internal_Rela rela; | |
| a6bb11b2 | 7094 | rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLS_DTPMOD)); |
| a06ea964 NC |
7095 | rela.r_addend = 0; |
| 7096 | rela.r_offset = globals->root.sgot->output_section->vma + | |
| 7097 | globals->root.sgot->output_offset + off; | |
| 7098 | ||
| 7099 | ||
| 7100 | loc = globals->root.srelgot->contents; | |
| 7101 | loc += globals->root.srelgot->reloc_count++ | |
| 7102 | * RELOC_SIZE (htab); | |
| cec5225b | 7103 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 | 7104 | |
| f69e4920 | 7105 | bfd_reloc_code_real_type real_type = |
| 0aa13fee | 7106 | elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| f69e4920 JW |
7107 | |
| 7108 | if (real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21 | |
| 73f925cc JW |
7109 | || real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21 |
| 7110 | || real_type == BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC) | |
| 77a69ff8 JW |
7111 | { |
| 7112 | /* For local dynamic, don't generate DTPREL in any case. | |
| 7113 | Initialize the DTPREL slot into zero, so we get module | |
| 7114 | base address when invoke runtime TLS resolver. */ | |
| 7115 | bfd_put_NN (output_bfd, 0, | |
| 7116 | globals->root.sgot->contents + off | |
| 7117 | + GOT_ENTRY_SIZE); | |
| 7118 | } | |
| 7119 | else if (indx == 0) | |
| a06ea964 | 7120 | { |
| cec5225b | 7121 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
7122 | relocation - dtpoff_base (info), |
| 7123 | globals->root.sgot->contents + off | |
| 7124 | + GOT_ENTRY_SIZE); | |
| 7125 | } | |
| 7126 | else | |
| 7127 | { | |
| 7128 | /* This TLS symbol is global. We emit a | |
| 7129 | relocation to fixup the tls offset at load | |
| 7130 | time. */ | |
| 7131 | rela.r_info = | |
| a6bb11b2 | 7132 | ELFNN_R_INFO (indx, AARCH64_R (TLS_DTPREL)); |
| a06ea964 NC |
7133 | rela.r_addend = 0; |
| 7134 | rela.r_offset = | |
| 7135 | (globals->root.sgot->output_section->vma | |
| 7136 | + globals->root.sgot->output_offset + off | |
| 7137 | + GOT_ENTRY_SIZE); | |
| 7138 | ||
| 7139 | loc = globals->root.srelgot->contents; | |
| 7140 | loc += globals->root.srelgot->reloc_count++ | |
| 7141 | * RELOC_SIZE (globals); | |
| cec5225b YZ |
7142 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| 7143 | bfd_put_NN (output_bfd, (bfd_vma) 0, | |
| a06ea964 NC |
7144 | globals->root.sgot->contents + off |
| 7145 | + GOT_ENTRY_SIZE); | |
| 7146 | } | |
| 7147 | } | |
| 7148 | else | |
| 7149 | { | |
| cec5225b | 7150 | bfd_put_NN (output_bfd, (bfd_vma) 1, |
| a06ea964 | 7151 | globals->root.sgot->contents + off); |
| cec5225b | 7152 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
7153 | relocation - dtpoff_base (info), |
| 7154 | globals->root.sgot->contents + off | |
| 7155 | + GOT_ENTRY_SIZE); | |
| 7156 | } | |
| 7157 | ||
| 7158 | symbol_got_offset_mark (input_bfd, h, r_symndx); | |
| 7159 | } | |
| 7160 | break; | |
| 7161 | ||
| a6bb11b2 YZ |
7162 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| 7163 | case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC: | |
| 043bf05a | 7164 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 3b957e5b RL |
7165 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 7166 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| a06ea964 NC |
7167 | if (! symbol_got_offset_mark_p (input_bfd, h, r_symndx)) |
| 7168 | { | |
| 0a1b45a2 | 7169 | bool need_relocs = false; |
| a06ea964 NC |
7170 | bfd_byte *loc; |
| 7171 | int indx; | |
| 7172 | bfd_vma off; | |
| 7173 | ||
| 7174 | off = symbol_got_offset (input_bfd, h, r_symndx); | |
| 7175 | ||
| 7176 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
| 7177 | ||
| 7178 | need_relocs = | |
| 6dda7875 | 7179 | (!bfd_link_executable (info) || indx != 0) && |
| a06ea964 NC |
7180 | (h == NULL |
| 7181 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 7182 | || h->root.type != bfd_link_hash_undefweak); | |
| 7183 | ||
| 7184 | BFD_ASSERT (globals->root.srelgot != NULL); | |
| 7185 | ||
| 7186 | if (need_relocs) | |
| 7187 | { | |
| 7188 | Elf_Internal_Rela rela; | |
| 7189 | ||
| 7190 | if (indx == 0) | |
| 7191 | rela.r_addend = relocation - dtpoff_base (info); | |
| 7192 | else | |
| 7193 | rela.r_addend = 0; | |
| 7194 | ||
| a6bb11b2 | 7195 | rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLS_TPREL)); |
| a06ea964 NC |
7196 | rela.r_offset = globals->root.sgot->output_section->vma + |
| 7197 | globals->root.sgot->output_offset + off; | |
| 7198 | ||
| 7199 | loc = globals->root.srelgot->contents; | |
| 7200 | loc += globals->root.srelgot->reloc_count++ | |
| 7201 | * RELOC_SIZE (htab); | |
| 7202 | ||
| cec5225b | 7203 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 | 7204 | |
| cec5225b | 7205 | bfd_put_NN (output_bfd, rela.r_addend, |
| a06ea964 NC |
7206 | globals->root.sgot->contents + off); |
| 7207 | } | |
| 7208 | else | |
| cec5225b | 7209 | bfd_put_NN (output_bfd, relocation - tpoff_base (info), |
| a06ea964 NC |
7210 | globals->root.sgot->contents + off); |
| 7211 | ||
| 7212 | symbol_got_offset_mark (input_bfd, h, r_symndx); | |
| 7213 | } | |
| 7214 | break; | |
| 7215 | ||
| f955cccf | 7216 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 7217 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 7218 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| a6bb11b2 | 7219 | case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC: |
| 1ada945d | 7220 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 0484b454 RL |
7221 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
| 7222 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| a06ea964 NC |
7223 | if (! symbol_tlsdesc_got_offset_mark_p (input_bfd, h, r_symndx)) |
| 7224 | { | |
| 0a1b45a2 | 7225 | bool need_relocs = false; |
| a06ea964 NC |
7226 | int indx = h && h->dynindx != -1 ? h->dynindx : 0; |
| 7227 | bfd_vma off = symbol_tlsdesc_got_offset (input_bfd, h, r_symndx); | |
| 7228 | ||
| 7229 | need_relocs = (h == NULL | |
| 7230 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 7231 | || h->root.type != bfd_link_hash_undefweak); | |
| 7232 | ||
| 7233 | BFD_ASSERT (globals->root.srelgot != NULL); | |
| 7234 | BFD_ASSERT (globals->root.sgot != NULL); | |
| 7235 | ||
| 7236 | if (need_relocs) | |
| 7237 | { | |
| 7238 | bfd_byte *loc; | |
| 7239 | Elf_Internal_Rela rela; | |
| a6bb11b2 YZ |
7240 | rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLSDESC)); |
| 7241 | ||
| a06ea964 NC |
7242 | rela.r_addend = 0; |
| 7243 | rela.r_offset = (globals->root.sgotplt->output_section->vma | |
| 7244 | + globals->root.sgotplt->output_offset | |
| 7245 | + off + globals->sgotplt_jump_table_size); | |
| 7246 | ||
| 7247 | if (indx == 0) | |
| 7248 | rela.r_addend = relocation - dtpoff_base (info); | |
| 7249 | ||
| 7250 | /* Allocate the next available slot in the PLT reloc | |
| 7251 | section to hold our R_AARCH64_TLSDESC, the next | |
| 7252 | available slot is determined from reloc_count, | |
| 7253 | which we step. But note, reloc_count was | |
| 7254 | artifically moved down while allocating slots for | |
| 7255 | real PLT relocs such that all of the PLT relocs | |
| 7256 | will fit above the initial reloc_count and the | |
| 7257 | extra stuff will fit below. */ | |
| 7258 | loc = globals->root.srelplt->contents; | |
| 7259 | loc += globals->root.srelplt->reloc_count++ | |
| 7260 | * RELOC_SIZE (globals); | |
| 7261 | ||
| cec5225b | 7262 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 | 7263 | |
| cec5225b | 7264 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| a06ea964 NC |
7265 | globals->root.sgotplt->contents + off + |
| 7266 | globals->sgotplt_jump_table_size); | |
| cec5225b | 7267 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| a06ea964 NC |
7268 | globals->root.sgotplt->contents + off + |
| 7269 | globals->sgotplt_jump_table_size + | |
| 7270 | GOT_ENTRY_SIZE); | |
| 7271 | } | |
| 7272 | ||
| 7273 | symbol_tlsdesc_got_offset_mark (input_bfd, h, r_symndx); | |
| 7274 | } | |
| 7275 | break; | |
| a6bb11b2 YZ |
7276 | default: |
| 7277 | break; | |
| a06ea964 NC |
7278 | } |
| 7279 | ||
| a06ea964 | 7280 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 07d6d2b8 AM |
7281 | because such sections are not SEC_ALLOC and thus ld.so will |
| 7282 | not process them. */ | |
| a06ea964 NC |
7283 | if (unresolved_reloc |
| 7284 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
| 7285 | && h->def_dynamic) | |
| 7286 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 7287 | +rel->r_offset) != (bfd_vma) - 1) | |
| 7288 | { | |
| 4eca0228 | 7289 | _bfd_error_handler |
| 695344c0 | 7290 | /* xgettext:c-format */ |
| 2dcf00ce AM |
7291 | (_("%pB(%pA+%#" PRIx64 "): " |
| 7292 | "unresolvable %s relocation against symbol `%s'"), | |
| 7293 | input_bfd, input_section, (uint64_t) rel->r_offset, howto->name, | |
| a06ea964 | 7294 | h->root.root.string); |
| 0a1b45a2 | 7295 | return false; |
| a06ea964 NC |
7296 | } |
| 7297 | ||
| 7298 | if (r != bfd_reloc_ok && r != bfd_reloc_continue) | |
| 7299 | { | |
| c674f5cd | 7300 | bfd_reloc_code_real_type real_r_type |
| 0aa13fee | 7301 | = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| c674f5cd | 7302 | |
| a06ea964 NC |
7303 | switch (r) |
| 7304 | { | |
| 7305 | case bfd_reloc_overflow: | |
| 1a72702b AM |
7306 | (*info->callbacks->reloc_overflow) |
| 7307 | (info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0, | |
| 7308 | input_bfd, input_section, rel->r_offset); | |
| c674f5cd JW |
7309 | if (real_r_type == BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15 |
| 7310 | || real_r_type == BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14) | |
| 7311 | { | |
| 7312 | (*info->callbacks->warning) | |
| 7313 | (info, | |
| 90b6238f | 7314 | _("too many GOT entries for -fpic, " |
| c674f5cd JW |
7315 | "please recompile with -fPIC"), |
| 7316 | name, input_bfd, input_section, rel->r_offset); | |
| 0a1b45a2 | 7317 | return false; |
| c674f5cd | 7318 | } |
| 027e9c75 NC |
7319 | /* Overflow can occur when a variable is referenced with a type |
| 7320 | that has a larger alignment than the type with which it was | |
| 7321 | declared. eg: | |
| 7322 | file1.c: extern int foo; int a (void) { return foo; } | |
| 7323 | file2.c: char bar, foo, baz; | |
| 7324 | If the variable is placed into a data section at an offset | |
| 7325 | that is incompatible with the larger alignment requirement | |
| 7326 | overflow will occur. (Strictly speaking this is not overflow | |
| 7327 | but rather an alignment problem, but the bfd_reloc_ error | |
| 7328 | enum does not have a value to cover that situation). | |
| 7329 | ||
| 7330 | Try to catch this situation here and provide a more helpful | |
| 7331 | error message to the user. */ | |
| 26009aa7 | 7332 | if (addend & (((bfd_vma) 1 << howto->rightshift) - 1) |
| 027e9c75 NC |
7333 | /* FIXME: Are we testing all of the appropriate reloc |
| 7334 | types here ? */ | |
| 7335 | && (real_r_type == BFD_RELOC_AARCH64_LD_LO19_PCREL | |
| 7336 | || real_r_type == BFD_RELOC_AARCH64_LDST16_LO12 | |
| 7337 | || real_r_type == BFD_RELOC_AARCH64_LDST32_LO12 | |
| 7338 | || real_r_type == BFD_RELOC_AARCH64_LDST64_LO12 | |
| 7339 | || real_r_type == BFD_RELOC_AARCH64_LDST128_LO12)) | |
| 7340 | { | |
| 7341 | info->callbacks->warning | |
| 90b6238f | 7342 | (info, _("one possible cause of this error is that the \ |
| 027e9c75 | 7343 | symbol is being referenced in the indicated code as if it had a larger \ |
| 90b6238f | 7344 | alignment than was declared where it was defined"), |
| 027e9c75 NC |
7345 | name, input_bfd, input_section, rel->r_offset); |
| 7346 | } | |
| a06ea964 NC |
7347 | break; |
| 7348 | ||
| 7349 | case bfd_reloc_undefined: | |
| 1a72702b | 7350 | (*info->callbacks->undefined_symbol) |
| 0a1b45a2 | 7351 | (info, name, input_bfd, input_section, rel->r_offset, true); |
| a06ea964 NC |
7352 | break; |
| 7353 | ||
| 7354 | case bfd_reloc_outofrange: | |
| 7355 | error_message = _("out of range"); | |
| 7356 | goto common_error; | |
| 7357 | ||
| 7358 | case bfd_reloc_notsupported: | |
| 7359 | error_message = _("unsupported relocation"); | |
| 7360 | goto common_error; | |
| 7361 | ||
| 7362 | case bfd_reloc_dangerous: | |
| 7363 | /* error_message should already be set. */ | |
| 7364 | goto common_error; | |
| 7365 | ||
| 7366 | default: | |
| 7367 | error_message = _("unknown error"); | |
| 7368 | /* Fall through. */ | |
| 7369 | ||
| 7370 | common_error: | |
| 7371 | BFD_ASSERT (error_message != NULL); | |
| 1a72702b AM |
7372 | (*info->callbacks->reloc_dangerous) |
| 7373 | (info, error_message, input_bfd, input_section, rel->r_offset); | |
| a06ea964 NC |
7374 | break; |
| 7375 | } | |
| 7376 | } | |
| 027e9c75 NC |
7377 | |
| 7378 | if (!save_addend) | |
| 7379 | addend = 0; | |
| a06ea964 NC |
7380 | } |
| 7381 | ||
| 0a1b45a2 | 7382 | return true; |
| a06ea964 NC |
7383 | } |
| 7384 | ||
| 7385 | /* Set the right machine number. */ | |
| 7386 | ||
| 0a1b45a2 | 7387 | static bool |
| cec5225b | 7388 | elfNN_aarch64_object_p (bfd *abfd) |
| a06ea964 | 7389 | { |
| cec5225b YZ |
7390 | #if ARCH_SIZE == 32 |
| 7391 | bfd_default_set_arch_mach (abfd, bfd_arch_aarch64, bfd_mach_aarch64_ilp32); | |
| 7392 | #else | |
| a06ea964 | 7393 | bfd_default_set_arch_mach (abfd, bfd_arch_aarch64, bfd_mach_aarch64); |
| cec5225b | 7394 | #endif |
| 0a1b45a2 | 7395 | return true; |
| a06ea964 NC |
7396 | } |
| 7397 | ||
| 7398 | /* Function to keep AArch64 specific flags in the ELF header. */ | |
| 7399 | ||
| 0a1b45a2 | 7400 | static bool |
| cec5225b | 7401 | elfNN_aarch64_set_private_flags (bfd *abfd, flagword flags) |
| a06ea964 NC |
7402 | { |
| 7403 | if (elf_flags_init (abfd) && elf_elfheader (abfd)->e_flags != flags) | |
| 7404 | { | |
| 7405 | } | |
| 7406 | else | |
| 7407 | { | |
| 7408 | elf_elfheader (abfd)->e_flags = flags; | |
| 0a1b45a2 | 7409 | elf_flags_init (abfd) = true; |
| a06ea964 NC |
7410 | } |
| 7411 | ||
| 0a1b45a2 | 7412 | return true; |
| a06ea964 NC |
7413 | } |
| 7414 | ||
| a06ea964 NC |
7415 | /* Merge backend specific data from an object file to the output |
| 7416 | object file when linking. */ | |
| 7417 | ||
| 0a1b45a2 | 7418 | static bool |
| 50e03d47 | 7419 | elfNN_aarch64_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| a06ea964 | 7420 | { |
| 50e03d47 | 7421 | bfd *obfd = info->output_bfd; |
| a06ea964 NC |
7422 | flagword out_flags; |
| 7423 | flagword in_flags; | |
| 0a1b45a2 | 7424 | bool flags_compatible = true; |
| a06ea964 NC |
7425 | asection *sec; |
| 7426 | ||
| 7427 | /* Check if we have the same endianess. */ | |
| 50e03d47 | 7428 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| 0a1b45a2 | 7429 | return false; |
| a06ea964 NC |
7430 | |
| 7431 | if (!is_aarch64_elf (ibfd) || !is_aarch64_elf (obfd)) | |
| 0a1b45a2 | 7432 | return true; |
| a06ea964 NC |
7433 | |
| 7434 | /* The input BFD must have had its flags initialised. */ | |
| 7435 | /* The following seems bogus to me -- The flags are initialized in | |
| 7436 | the assembler but I don't think an elf_flags_init field is | |
| 7437 | written into the object. */ | |
| 7438 | /* BFD_ASSERT (elf_flags_init (ibfd)); */ | |
| 7439 | ||
| 7440 | in_flags = elf_elfheader (ibfd)->e_flags; | |
| 7441 | out_flags = elf_elfheader (obfd)->e_flags; | |
| 7442 | ||
| 7443 | if (!elf_flags_init (obfd)) | |
| 7444 | { | |
| 7445 | /* If the input is the default architecture and had the default | |
| 07d6d2b8 AM |
7446 | flags then do not bother setting the flags for the output |
| 7447 | architecture, instead allow future merges to do this. If no | |
| 7448 | future merges ever set these flags then they will retain their | |
| 7449 | uninitialised values, which surprise surprise, correspond | |
| 7450 | to the default values. */ | |
| a06ea964 NC |
7451 | if (bfd_get_arch_info (ibfd)->the_default |
| 7452 | && elf_elfheader (ibfd)->e_flags == 0) | |
| 0a1b45a2 | 7453 | return true; |
| a06ea964 | 7454 | |
| 0a1b45a2 | 7455 | elf_flags_init (obfd) = true; |
| a06ea964 NC |
7456 | elf_elfheader (obfd)->e_flags = in_flags; |
| 7457 | ||
| 7458 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
| 7459 | && bfd_get_arch_info (obfd)->the_default) | |
| 7460 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
| 7461 | bfd_get_mach (ibfd)); | |
| 7462 | ||
| 0a1b45a2 | 7463 | return true; |
| a06ea964 NC |
7464 | } |
| 7465 | ||
| 7466 | /* Identical flags must be compatible. */ | |
| 7467 | if (in_flags == out_flags) | |
| 0a1b45a2 | 7468 | return true; |
| a06ea964 NC |
7469 | |
| 7470 | /* Check to see if the input BFD actually contains any sections. If | |
| 7471 | not, its flags may not have been initialised either, but it | |
| 7472 | cannot actually cause any incompatiblity. Do not short-circuit | |
| 7473 | dynamic objects; their section list may be emptied by | |
| 7474 | elf_link_add_object_symbols. | |
| 7475 | ||
| 7476 | Also check to see if there are no code sections in the input. | |
| 7477 | In this case there is no need to check for code specific flags. | |
| 7478 | XXX - do we need to worry about floating-point format compatability | |
| 7479 | in data sections ? */ | |
| 7480 | if (!(ibfd->flags & DYNAMIC)) | |
| 7481 | { | |
| 0a1b45a2 AM |
7482 | bool null_input_bfd = true; |
| 7483 | bool only_data_sections = true; | |
| a06ea964 NC |
7484 | |
| 7485 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 7486 | { | |
| fd361982 | 7487 | if ((bfd_section_flags (sec) |
| a06ea964 NC |
7488 | & (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) |
| 7489 | == (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) | |
| 0a1b45a2 | 7490 | only_data_sections = false; |
| a06ea964 | 7491 | |
| 0a1b45a2 | 7492 | null_input_bfd = false; |
| a06ea964 NC |
7493 | break; |
| 7494 | } | |
| 7495 | ||
| 7496 | if (null_input_bfd || only_data_sections) | |
| 0a1b45a2 | 7497 | return true; |
| a06ea964 NC |
7498 | } |
| 7499 | ||
| 7500 | return flags_compatible; | |
| 7501 | } | |
| 7502 | ||
| 7503 | /* Display the flags field. */ | |
| 7504 | ||
| 0a1b45a2 | 7505 | static bool |
| cec5225b | 7506 | elfNN_aarch64_print_private_bfd_data (bfd *abfd, void *ptr) |
| a06ea964 NC |
7507 | { |
| 7508 | FILE *file = (FILE *) ptr; | |
| 7509 | unsigned long flags; | |
| 7510 | ||
| 7511 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
| 7512 | ||
| 7513 | /* Print normal ELF private data. */ | |
| 7514 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 7515 | ||
| 7516 | flags = elf_elfheader (abfd)->e_flags; | |
| 7517 | /* Ignore init flag - it may not be set, despite the flags field | |
| 7518 | containing valid data. */ | |
| 7519 | ||
| 7520 | /* xgettext:c-format */ | |
| dbb078f6 | 7521 | fprintf (file, _("private flags = 0x%lx:"), elf_elfheader (abfd)->e_flags); |
| a06ea964 NC |
7522 | |
| 7523 | if (flags) | |
| dbb078f6 | 7524 | fprintf (file, _(" <Unrecognised flag bits set>")); |
| a06ea964 NC |
7525 | |
| 7526 | fputc ('\n', file); | |
| 7527 | ||
| 0a1b45a2 | 7528 | return true; |
| a06ea964 NC |
7529 | } |
| 7530 | ||
| 6353d82b JW |
7531 | /* Return true if we need copy relocation against EH. */ |
| 7532 | ||
| 0a1b45a2 | 7533 | static bool |
| 6353d82b JW |
7534 | need_copy_relocation_p (struct elf_aarch64_link_hash_entry *eh) |
| 7535 | { | |
| 7536 | struct elf_dyn_relocs *p; | |
| 7537 | asection *s; | |
| 7538 | ||
| 190eb1dd | 7539 | for (p = eh->root.dyn_relocs; p != NULL; p = p->next) |
| 6353d82b JW |
7540 | { |
| 7541 | /* If there is any pc-relative reference, we need to keep copy relocation | |
| 7542 | to avoid propagating the relocation into runtime that current glibc | |
| 7543 | does not support. */ | |
| 7544 | if (p->pc_count) | |
| 0a1b45a2 | 7545 | return true; |
| 6353d82b JW |
7546 | |
| 7547 | s = p->sec->output_section; | |
| 7548 | /* Need copy relocation if it's against read-only section. */ | |
| 7549 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 0a1b45a2 | 7550 | return true; |
| 6353d82b JW |
7551 | } |
| 7552 | ||
| 0a1b45a2 | 7553 | return false; |
| 6353d82b JW |
7554 | } |
| 7555 | ||
| a06ea964 NC |
7556 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7557 | regular object. The current definition is in some section of the | |
| 7558 | dynamic object, but we're not including those sections. We have to | |
| 7559 | change the definition to something the rest of the link can | |
| 7560 | understand. */ | |
| 7561 | ||
| 0a1b45a2 | 7562 | static bool |
| cec5225b | 7563 | elfNN_aarch64_adjust_dynamic_symbol (struct bfd_link_info *info, |
| a06ea964 NC |
7564 | struct elf_link_hash_entry *h) |
| 7565 | { | |
| cec5225b | 7566 | struct elf_aarch64_link_hash_table *htab; |
| 5474d94f | 7567 | asection *s, *srel; |
| a06ea964 NC |
7568 | |
| 7569 | /* If this is a function, put it in the procedure linkage table. We | |
| 7570 | will fill in the contents of the procedure linkage table later, | |
| 7571 | when we know the address of the .got section. */ | |
| 1419bbe5 | 7572 | if (h->type == STT_FUNC || h->type == STT_GNU_IFUNC || h->needs_plt) |
| a06ea964 NC |
7573 | { |
| 7574 | if (h->plt.refcount <= 0 | |
| 1419bbe5 WN |
7575 | || (h->type != STT_GNU_IFUNC |
| 7576 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 7577 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| 7578 | && h->root.type == bfd_link_hash_undefweak)))) | |
| a06ea964 NC |
7579 | { |
| 7580 | /* This case can occur if we saw a CALL26 reloc in | |
| 7581 | an input file, but the symbol wasn't referred to | |
| 7582 | by a dynamic object or all references were | |
| 7583 | garbage collected. In which case we can end up | |
| 7584 | resolving. */ | |
| 7585 | h->plt.offset = (bfd_vma) - 1; | |
| 7586 | h->needs_plt = 0; | |
| 7587 | } | |
| 7588 | ||
| 0a1b45a2 | 7589 | return true; |
| a06ea964 NC |
7590 | } |
| 7591 | else | |
| 80de0c6d | 7592 | /* Otherwise, reset to -1. */ |
| a06ea964 NC |
7593 | h->plt.offset = (bfd_vma) - 1; |
| 7594 | ||
| 7595 | ||
| 7596 | /* If this is a weak symbol, and there is a real definition, the | |
| 7597 | processor independent code will have arranged for us to see the | |
| 7598 | real definition first, and we can just use the same value. */ | |
| 60d67dc8 | 7599 | if (h->is_weakalias) |
| a06ea964 | 7600 | { |
| 60d67dc8 AM |
7601 | struct elf_link_hash_entry *def = weakdef (h); |
| 7602 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
| 7603 | h->root.u.def.section = def->root.u.def.section; | |
| 7604 | h->root.u.def.value = def->root.u.def.value; | |
| a06ea964 | 7605 | if (ELIMINATE_COPY_RELOCS || info->nocopyreloc) |
| 60d67dc8 | 7606 | h->non_got_ref = def->non_got_ref; |
| 0a1b45a2 | 7607 | return true; |
| a06ea964 NC |
7608 | } |
| 7609 | ||
| 7610 | /* If we are creating a shared library, we must presume that the | |
| 7611 | only references to the symbol are via the global offset table. | |
| 7612 | For such cases we need not do anything here; the relocations will | |
| 7613 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7614 | if (bfd_link_pic (info)) |
| 0a1b45a2 | 7615 | return true; |
| a06ea964 NC |
7616 | |
| 7617 | /* If there are no references to this symbol that do not use the | |
| 7618 | GOT, we don't need to generate a copy reloc. */ | |
| 7619 | if (!h->non_got_ref) | |
| 0a1b45a2 | 7620 | return true; |
| a06ea964 NC |
7621 | |
| 7622 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
| 7623 | if (info->nocopyreloc) | |
| 7624 | { | |
| 7625 | h->non_got_ref = 0; | |
| 0a1b45a2 | 7626 | return true; |
| a06ea964 NC |
7627 | } |
| 7628 | ||
| 6353d82b JW |
7629 | if (ELIMINATE_COPY_RELOCS) |
| 7630 | { | |
| 7631 | struct elf_aarch64_link_hash_entry *eh; | |
| dce2246a | 7632 | /* If we don't find any dynamic relocs in read-only sections, then |
| 6353d82b JW |
7633 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
| 7634 | eh = (struct elf_aarch64_link_hash_entry *) h; | |
| 7635 | if (!need_copy_relocation_p (eh)) | |
| 7636 | { | |
| 7637 | h->non_got_ref = 0; | |
| 0a1b45a2 | 7638 | return true; |
| 6353d82b JW |
7639 | } |
| 7640 | } | |
| 7641 | ||
| a06ea964 NC |
7642 | /* We must allocate the symbol in our .dynbss section, which will |
| 7643 | become part of the .bss section of the executable. There will be | |
| 7644 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7645 | object will contain position independent code, so all references | |
| 7646 | from the dynamic object to this symbol will go through the global | |
| 7647 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7648 | determine the address it must put in the global offset table, so | |
| 7649 | both the dynamic object and the regular object will refer to the | |
| 7650 | same memory location for the variable. */ | |
| 7651 | ||
| cec5225b | 7652 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
7653 | |
| 7654 | /* We must generate a R_AARCH64_COPY reloc to tell the dynamic linker | |
| 7655 | to copy the initial value out of the dynamic object and into the | |
| 7656 | runtime process image. */ | |
| 5474d94f AM |
7657 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 7658 | { | |
| 7659 | s = htab->root.sdynrelro; | |
| 7660 | srel = htab->root.sreldynrelro; | |
| 7661 | } | |
| 7662 | else | |
| 7663 | { | |
| 7664 | s = htab->root.sdynbss; | |
| 7665 | srel = htab->root.srelbss; | |
| 7666 | } | |
| a06ea964 NC |
7667 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 7668 | { | |
| 5474d94f | 7669 | srel->size += RELOC_SIZE (htab); |
| a06ea964 NC |
7670 | h->needs_copy = 1; |
| 7671 | } | |
| 7672 | ||
| 6cabe1ea | 7673 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| a06ea964 NC |
7674 | |
| 7675 | } | |
| 7676 | ||
| 0a1b45a2 | 7677 | static bool |
| cec5225b | 7678 | elfNN_aarch64_allocate_local_symbols (bfd *abfd, unsigned number) |
| a06ea964 NC |
7679 | { |
| 7680 | struct elf_aarch64_local_symbol *locals; | |
| cec5225b | 7681 | locals = elf_aarch64_locals (abfd); |
| a06ea964 NC |
7682 | if (locals == NULL) |
| 7683 | { | |
| 7684 | locals = (struct elf_aarch64_local_symbol *) | |
| 7685 | bfd_zalloc (abfd, number * sizeof (struct elf_aarch64_local_symbol)); | |
| 7686 | if (locals == NULL) | |
| 0a1b45a2 | 7687 | return false; |
| cec5225b | 7688 | elf_aarch64_locals (abfd) = locals; |
| a06ea964 | 7689 | } |
| 0a1b45a2 | 7690 | return true; |
| a06ea964 NC |
7691 | } |
| 7692 | ||
| cc0efaa8 MS |
7693 | /* Create the .got section to hold the global offset table. */ |
| 7694 | ||
| 0a1b45a2 | 7695 | static bool |
| cc0efaa8 MS |
7696 | aarch64_elf_create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 7697 | { | |
| 7698 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
| 7699 | flagword flags; | |
| 7700 | asection *s; | |
| 7701 | struct elf_link_hash_entry *h; | |
| 7702 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 7703 | ||
| 7704 | /* This function may be called more than once. */ | |
| ce558b89 | 7705 | if (htab->sgot != NULL) |
| 0a1b45a2 | 7706 | return true; |
| cc0efaa8 MS |
7707 | |
| 7708 | flags = bed->dynamic_sec_flags; | |
| 7709 | ||
| 7710 | s = bfd_make_section_anyway_with_flags (abfd, | |
| 7711 | (bed->rela_plts_and_copies_p | |
| 7712 | ? ".rela.got" : ".rel.got"), | |
| 7713 | (bed->dynamic_sec_flags | |
| 7714 | | SEC_READONLY)); | |
| 7715 | if (s == NULL | |
| fd361982 | 7716 | || !bfd_set_section_alignment (s, bed->s->log_file_align)) |
| 0a1b45a2 | 7717 | return false; |
| cc0efaa8 MS |
7718 | htab->srelgot = s; |
| 7719 | ||
| 7720 | s = bfd_make_section_anyway_with_flags (abfd, ".got", flags); | |
| 7721 | if (s == NULL | |
| fd361982 | 7722 | || !bfd_set_section_alignment (s, bed->s->log_file_align)) |
| 0a1b45a2 | 7723 | return false; |
| cc0efaa8 MS |
7724 | htab->sgot = s; |
| 7725 | htab->sgot->size += GOT_ENTRY_SIZE; | |
| 7726 | ||
| 7727 | if (bed->want_got_sym) | |
| 7728 | { | |
| 7729 | /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got | |
| 7730 | (or .got.plt) section. We don't do this in the linker script | |
| 7731 | because we don't want to define the symbol if we are not creating | |
| 7732 | a global offset table. */ | |
| 7733 | h = _bfd_elf_define_linkage_sym (abfd, info, s, | |
| 7734 | "_GLOBAL_OFFSET_TABLE_"); | |
| 7735 | elf_hash_table (info)->hgot = h; | |
| 7736 | if (h == NULL) | |
| 0a1b45a2 | 7737 | return false; |
| cc0efaa8 MS |
7738 | } |
| 7739 | ||
| 7740 | if (bed->want_got_plt) | |
| 7741 | { | |
| 7742 | s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags); | |
| 7743 | if (s == NULL | |
| fd361982 | 7744 | || !bfd_set_section_alignment (s, bed->s->log_file_align)) |
| 0a1b45a2 | 7745 | return false; |
| cc0efaa8 MS |
7746 | htab->sgotplt = s; |
| 7747 | } | |
| 7748 | ||
| 7749 | /* The first bit of the global offset table is the header. */ | |
| 7750 | s->size += bed->got_header_size; | |
| 7751 | ||
| 0a1b45a2 | 7752 | return true; |
| cc0efaa8 MS |
7753 | } |
| 7754 | ||
| a06ea964 NC |
7755 | /* Look through the relocs for a section during the first phase. */ |
| 7756 | ||
| 0a1b45a2 | 7757 | static bool |
| cec5225b | 7758 | elfNN_aarch64_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| a06ea964 NC |
7759 | asection *sec, const Elf_Internal_Rela *relocs) |
| 7760 | { | |
| 7761 | Elf_Internal_Shdr *symtab_hdr; | |
| 7762 | struct elf_link_hash_entry **sym_hashes; | |
| 7763 | const Elf_Internal_Rela *rel; | |
| 7764 | const Elf_Internal_Rela *rel_end; | |
| 7765 | asection *sreloc; | |
| 7766 | ||
| cec5225b | 7767 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 | 7768 | |
| 0e1862bb | 7769 | if (bfd_link_relocatable (info)) |
| 0a1b45a2 | 7770 | return true; |
| a06ea964 NC |
7771 | |
| 7772 | BFD_ASSERT (is_aarch64_elf (abfd)); | |
| 7773 | ||
| cec5225b | 7774 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
7775 | sreloc = NULL; |
| 7776 | ||
| 7777 | symtab_hdr = &elf_symtab_hdr (abfd); | |
| 7778 | sym_hashes = elf_sym_hashes (abfd); | |
| a06ea964 NC |
7779 | |
| 7780 | rel_end = relocs + sec->reloc_count; | |
| 7781 | for (rel = relocs; rel < rel_end; rel++) | |
| 7782 | { | |
| 7783 | struct elf_link_hash_entry *h; | |
| d42c267e | 7784 | unsigned int r_symndx; |
| a06ea964 | 7785 | unsigned int r_type; |
| a6bb11b2 | 7786 | bfd_reloc_code_real_type bfd_r_type; |
| 1419bbe5 | 7787 | Elf_Internal_Sym *isym; |
| a06ea964 | 7788 | |
| cec5225b YZ |
7789 | r_symndx = ELFNN_R_SYM (rel->r_info); |
| 7790 | r_type = ELFNN_R_TYPE (rel->r_info); | |
| a06ea964 NC |
7791 | |
| 7792 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
| 7793 | { | |
| 695344c0 | 7794 | /* xgettext:c-format */ |
| 871b3ab2 | 7795 | _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx); |
| 0a1b45a2 | 7796 | return false; |
| a06ea964 NC |
7797 | } |
| 7798 | ||
| ed5acf27 | 7799 | if (r_symndx < symtab_hdr->sh_info) |
| 1419bbe5 WN |
7800 | { |
| 7801 | /* A local symbol. */ | |
| f1dfbfdb | 7802 | isym = bfd_sym_from_r_symndx (&htab->root.sym_cache, |
| 1419bbe5 WN |
7803 | abfd, r_symndx); |
| 7804 | if (isym == NULL) | |
| 0a1b45a2 | 7805 | return false; |
| 1419bbe5 WN |
7806 | |
| 7807 | /* Check relocation against local STT_GNU_IFUNC symbol. */ | |
| 7808 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 7809 | { | |
| 7810 | h = elfNN_aarch64_get_local_sym_hash (htab, abfd, rel, | |
| 0a1b45a2 | 7811 | true); |
| 1419bbe5 | 7812 | if (h == NULL) |
| 0a1b45a2 | 7813 | return false; |
| 1419bbe5 WN |
7814 | |
| 7815 | /* Fake a STT_GNU_IFUNC symbol. */ | |
| 7816 | h->type = STT_GNU_IFUNC; | |
| 7817 | h->def_regular = 1; | |
| 7818 | h->ref_regular = 1; | |
| 7819 | h->forced_local = 1; | |
| 7820 | h->root.type = bfd_link_hash_defined; | |
| 7821 | } | |
| 7822 | else | |
| 7823 | h = NULL; | |
| 7824 | } | |
| a06ea964 NC |
7825 | else |
| 7826 | { | |
| 7827 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| 7828 | while (h->root.type == bfd_link_hash_indirect | |
| 7829 | || h->root.type == bfd_link_hash_warning) | |
| 7830 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 7831 | } | |
| 7832 | ||
| 7833 | /* Could be done earlier, if h were already available. */ | |
| a6bb11b2 | 7834 | bfd_r_type = aarch64_tls_transition (abfd, info, r_type, h, r_symndx); |
| a06ea964 | 7835 | |
| 1419bbe5 WN |
7836 | if (h != NULL) |
| 7837 | { | |
| 18f822a0 JW |
7838 | /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. |
| 7839 | This shows up in particular in an R_AARCH64_PREL64 in large model | |
| 7840 | when calculating the pc-relative address to .got section which is | |
| 7841 | used to initialize the gp register. */ | |
| 7842 | if (h->root.root.string | |
| 7843 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
| 7844 | { | |
| 7845 | if (htab->root.dynobj == NULL) | |
| 7846 | htab->root.dynobj = abfd; | |
| 7847 | ||
| 7848 | if (! aarch64_elf_create_got_section (htab->root.dynobj, info)) | |
| 0a1b45a2 | 7849 | return false; |
| 18f822a0 JW |
7850 | |
| 7851 | BFD_ASSERT (h == htab->root.hgot); | |
| 7852 | } | |
| 7853 | ||
| 1419bbe5 WN |
7854 | /* Create the ifunc sections for static executables. If we |
| 7855 | never see an indirect function symbol nor we are building | |
| 7856 | a static executable, those sections will be empty and | |
| 7857 | won't appear in output. */ | |
| 7858 | switch (bfd_r_type) | |
| 7859 | { | |
| 7860 | default: | |
| 7861 | break; | |
| 7862 | ||
| ce336788 JW |
7863 | case BFD_RELOC_AARCH64_ADD_LO12: |
| 7864 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: | |
| 7865 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: | |
| 1419bbe5 | 7866 | case BFD_RELOC_AARCH64_CALL26: |
| ce336788 | 7867 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: |
| 1419bbe5 | 7868 | case BFD_RELOC_AARCH64_JUMP26: |
| 7018c030 | 7869 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| 1419bbe5 | 7870 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| a2e1db00 | 7871 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 99ad26cb | 7872 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| 1419bbe5 | 7873 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| dc8008f5 | 7874 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 7875 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| ce336788 | 7876 | case BFD_RELOC_AARCH64_NN: |
| 1419bbe5 WN |
7877 | if (htab->root.dynobj == NULL) |
| 7878 | htab->root.dynobj = abfd; | |
| 7879 | if (!_bfd_elf_create_ifunc_sections (htab->root.dynobj, info)) | |
| 0a1b45a2 | 7880 | return false; |
| 1419bbe5 WN |
7881 | break; |
| 7882 | } | |
| 7883 | ||
| 2d0ca824 | 7884 | /* It is referenced by a non-shared object. */ |
| 1419bbe5 | 7885 | h->ref_regular = 1; |
| 1419bbe5 WN |
7886 | } |
| 7887 | ||
| a6bb11b2 | 7888 | switch (bfd_r_type) |
| a06ea964 | 7889 | { |
| 79e74192 RL |
7890 | case BFD_RELOC_AARCH64_16: |
| 7891 | #if ARCH_SIZE == 64 | |
| 7892 | case BFD_RELOC_AARCH64_32: | |
| 7893 | #endif | |
| 279b2f94 | 7894 | if (bfd_link_pic (info) && (sec->flags & SEC_ALLOC) != 0) |
| 79e74192 | 7895 | { |
| 279b2f94 RL |
7896 | if (h != NULL |
| 7897 | /* This is an absolute symbol. It represents a value instead | |
| 7898 | of an address. */ | |
| c691de6a | 7899 | && (bfd_is_abs_symbol (&h->root) |
| 279b2f94 RL |
7900 | /* This is an undefined symbol. */ |
| 7901 | || h->root.type == bfd_link_hash_undefined)) | |
| 7902 | break; | |
| 7903 | ||
| 7904 | /* For local symbols, defined global symbols in a non-ABS section, | |
| 7905 | it is assumed that the value is an address. */ | |
| 79e74192 RL |
7906 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; |
| 7907 | _bfd_error_handler | |
| 7908 | /* xgettext:c-format */ | |
| 871b3ab2 | 7909 | (_("%pB: relocation %s against `%s' can not be used when making " |
| 79e74192 RL |
7910 | "a shared object"), |
| 7911 | abfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 7912 | (h) ? h->root.root.string : "a local symbol"); | |
| 7913 | bfd_set_error (bfd_error_bad_value); | |
| 0a1b45a2 | 7914 | return false; |
| 79e74192 RL |
7915 | } |
| 7916 | else | |
| 7917 | break; | |
| 7918 | ||
| 6353d82b JW |
7919 | case BFD_RELOC_AARCH64_MOVW_G0_NC: |
| 7920 | case BFD_RELOC_AARCH64_MOVW_G1_NC: | |
| 7921 | case BFD_RELOC_AARCH64_MOVW_G2_NC: | |
| 7922 | case BFD_RELOC_AARCH64_MOVW_G3: | |
| 7923 | if (bfd_link_pic (info)) | |
| 7924 | { | |
| 7925 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 7926 | _bfd_error_handler | |
| 7927 | /* xgettext:c-format */ | |
| 871b3ab2 | 7928 | (_("%pB: relocation %s against `%s' can not be used when making " |
| 6353d82b JW |
7929 | "a shared object; recompile with -fPIC"), |
| 7930 | abfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 7931 | (h) ? h->root.root.string : "a local symbol"); | |
| 7932 | bfd_set_error (bfd_error_bad_value); | |
| 0a1b45a2 | 7933 | return false; |
| 6353d82b JW |
7934 | } |
| 7935 | /* Fall through. */ | |
| 7936 | ||
| 7937 | case BFD_RELOC_AARCH64_16_PCREL: | |
| 7938 | case BFD_RELOC_AARCH64_32_PCREL: | |
| 7939 | case BFD_RELOC_AARCH64_64_PCREL: | |
| 7940 | case BFD_RELOC_AARCH64_ADD_LO12: | |
| 7941 | case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL: | |
| 7942 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: | |
| 7943 | case BFD_RELOC_AARCH64_ADR_LO21_PCREL: | |
| 7944 | case BFD_RELOC_AARCH64_LDST128_LO12: | |
| 7945 | case BFD_RELOC_AARCH64_LDST16_LO12: | |
| 7946 | case BFD_RELOC_AARCH64_LDST32_LO12: | |
| 7947 | case BFD_RELOC_AARCH64_LDST64_LO12: | |
| 7948 | case BFD_RELOC_AARCH64_LDST8_LO12: | |
| 7949 | case BFD_RELOC_AARCH64_LD_LO19_PCREL: | |
| 7950 | if (h == NULL || bfd_link_pic (info)) | |
| 7951 | break; | |
| 7952 | /* Fall through. */ | |
| 7953 | ||
| a6bb11b2 | 7954 | case BFD_RELOC_AARCH64_NN: |
| a06ea964 NC |
7955 | |
| 7956 | /* We don't need to handle relocs into sections not going into | |
| 7957 | the "real" output. */ | |
| 7958 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 7959 | break; | |
| 7960 | ||
| 7961 | if (h != NULL) | |
| 7962 | { | |
| 0e1862bb | 7963 | if (!bfd_link_pic (info)) |
| a06ea964 NC |
7964 | h->non_got_ref = 1; |
| 7965 | ||
| 7966 | h->plt.refcount += 1; | |
| 7967 | h->pointer_equality_needed = 1; | |
| 7968 | } | |
| 7969 | ||
| 7970 | /* No need to do anything if we're not creating a shared | |
| 7971 | object. */ | |
| 6353d82b JW |
7972 | if (!(bfd_link_pic (info) |
| 7973 | /* If on the other hand, we are creating an executable, we | |
| 7974 | may need to keep relocations for symbols satisfied by a | |
| 7975 | dynamic library if we manage to avoid copy relocs for the | |
| 7976 | symbol. | |
| 7977 | ||
| 7978 | NOTE: Currently, there is no support of copy relocs | |
| 7979 | elimination on pc-relative relocation types, because there is | |
| 7980 | no dynamic relocation support for them in glibc. We still | |
| 7981 | record the dynamic symbol reference for them. This is | |
| 7982 | because one symbol may be referenced by both absolute | |
| 7983 | relocation (for example, BFD_RELOC_AARCH64_NN) and | |
| 7984 | pc-relative relocation. We need full symbol reference | |
| 7985 | information to make correct decision later in | |
| 7986 | elfNN_aarch64_adjust_dynamic_symbol. */ | |
| 7987 | || (ELIMINATE_COPY_RELOCS | |
| 7988 | && !bfd_link_pic (info) | |
| 7989 | && h != NULL | |
| 7990 | && (h->root.type == bfd_link_hash_defweak | |
| 7991 | || !h->def_regular)))) | |
| a06ea964 NC |
7992 | break; |
| 7993 | ||
| 7994 | { | |
| 7995 | struct elf_dyn_relocs *p; | |
| 7996 | struct elf_dyn_relocs **head; | |
| 6353d82b | 7997 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; |
| a06ea964 NC |
7998 | |
| 7999 | /* We must copy these reloc types into the output file. | |
| 8000 | Create a reloc section in dynobj and make room for | |
| 8001 | this reloc. */ | |
| 8002 | if (sreloc == NULL) | |
| 8003 | { | |
| 8004 | if (htab->root.dynobj == NULL) | |
| 8005 | htab->root.dynobj = abfd; | |
| 8006 | ||
| 8007 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
| 0a1b45a2 | 8008 | (sec, htab->root.dynobj, LOG_FILE_ALIGN, abfd, /*rela? */ true); |
| a06ea964 NC |
8009 | |
| 8010 | if (sreloc == NULL) | |
| 0a1b45a2 | 8011 | return false; |
| a06ea964 NC |
8012 | } |
| 8013 | ||
| 8014 | /* If this is a global symbol, we count the number of | |
| 8015 | relocations we need for this symbol. */ | |
| 8016 | if (h != NULL) | |
| 8017 | { | |
| 190eb1dd | 8018 | head = &h->dyn_relocs; |
| a06ea964 NC |
8019 | } |
| 8020 | else | |
| 8021 | { | |
| 8022 | /* Track dynamic relocs needed for local syms too. | |
| 8023 | We really need local syms available to do this | |
| 8024 | easily. Oh well. */ | |
| 8025 | ||
| 8026 | asection *s; | |
| 8027 | void **vpp; | |
| a06ea964 | 8028 | |
| f1dfbfdb | 8029 | isym = bfd_sym_from_r_symndx (&htab->root.sym_cache, |
| a06ea964 NC |
8030 | abfd, r_symndx); |
| 8031 | if (isym == NULL) | |
| 0a1b45a2 | 8032 | return false; |
| a06ea964 NC |
8033 | |
| 8034 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 8035 | if (s == NULL) | |
| 8036 | s = sec; | |
| 8037 | ||
| 8038 | /* Beware of type punned pointers vs strict aliasing | |
| 8039 | rules. */ | |
| 8040 | vpp = &(elf_section_data (s)->local_dynrel); | |
| 8041 | head = (struct elf_dyn_relocs **) vpp; | |
| 8042 | } | |
| 8043 | ||
| 8044 | p = *head; | |
| 8045 | if (p == NULL || p->sec != sec) | |
| 8046 | { | |
| 986f0783 | 8047 | size_t amt = sizeof *p; |
| a06ea964 NC |
8048 | p = ((struct elf_dyn_relocs *) |
| 8049 | bfd_zalloc (htab->root.dynobj, amt)); | |
| 8050 | if (p == NULL) | |
| 0a1b45a2 | 8051 | return false; |
| a06ea964 NC |
8052 | p->next = *head; |
| 8053 | *head = p; | |
| 8054 | p->sec = sec; | |
| 8055 | } | |
| 8056 | ||
| 8057 | p->count += 1; | |
| 8058 | ||
| 6353d82b JW |
8059 | if (elfNN_aarch64_howto_table[howto_index].pc_relative) |
| 8060 | p->pc_count += 1; | |
| a06ea964 NC |
8061 | } |
| 8062 | break; | |
| 8063 | ||
| 8064 | /* RR: We probably want to keep a consistency check that | |
| 8065 | there are no dangling GOT_PAGE relocs. */ | |
| a6bb11b2 | 8066 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 7bcccb57 | 8067 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: |
| 7018c030 | 8068 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| 7bcccb57 | 8069 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| a2e1db00 | 8070 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 99ad26cb | 8071 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| 7bcccb57 | 8072 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| dc8008f5 | 8073 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 8074 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| f955cccf | 8075 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| 7bcccb57 | 8076 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 8077 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| 7bcccb57 | 8078 | case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC: |
| f955cccf | 8079 | case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12: |
| 1ada945d | 8080 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 0484b454 RL |
8081 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
| 8082 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| a6bb11b2 | 8083 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| 7bcccb57 | 8084 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 8085 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 7ba7cfe4 | 8086 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 8087 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| a6bb11b2 | 8088 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a6bb11b2 | 8089 | case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: |
| 7bcccb57 | 8090 | case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: |
| 043bf05a | 8091 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 3b957e5b RL |
8092 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 8093 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| 73f925cc | 8094 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 8095 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 8096 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
8097 | { |
| 8098 | unsigned got_type; | |
| 8099 | unsigned old_got_type; | |
| 8100 | ||
| a6bb11b2 | 8101 | got_type = aarch64_reloc_got_type (bfd_r_type); |
| a06ea964 NC |
8102 | |
| 8103 | if (h) | |
| 8104 | { | |
| 8105 | h->got.refcount += 1; | |
| cec5225b | 8106 | old_got_type = elf_aarch64_hash_entry (h)->got_type; |
| a06ea964 NC |
8107 | } |
| 8108 | else | |
| 8109 | { | |
| 8110 | struct elf_aarch64_local_symbol *locals; | |
| 8111 | ||
| cec5225b | 8112 | if (!elfNN_aarch64_allocate_local_symbols |
| a06ea964 | 8113 | (abfd, symtab_hdr->sh_info)) |
| 0a1b45a2 | 8114 | return false; |
| a06ea964 | 8115 | |
| cec5225b | 8116 | locals = elf_aarch64_locals (abfd); |
| a06ea964 NC |
8117 | BFD_ASSERT (r_symndx < symtab_hdr->sh_info); |
| 8118 | locals[r_symndx].got_refcount += 1; | |
| 8119 | old_got_type = locals[r_symndx].got_type; | |
| 8120 | } | |
| 8121 | ||
| 8122 | /* If a variable is accessed with both general dynamic TLS | |
| 8123 | methods, two slots may be created. */ | |
| 8124 | if (GOT_TLS_GD_ANY_P (old_got_type) && GOT_TLS_GD_ANY_P (got_type)) | |
| 8125 | got_type |= old_got_type; | |
| 8126 | ||
| 8127 | /* We will already have issued an error message if there | |
| 8128 | is a TLS/non-TLS mismatch, based on the symbol type. | |
| 8129 | So just combine any TLS types needed. */ | |
| 8130 | if (old_got_type != GOT_UNKNOWN && old_got_type != GOT_NORMAL | |
| 8131 | && got_type != GOT_NORMAL) | |
| 8132 | got_type |= old_got_type; | |
| 8133 | ||
| 8134 | /* If the symbol is accessed by both IE and GD methods, we | |
| 8135 | are able to relax. Turn off the GD flag, without | |
| 8136 | messing up with any other kind of TLS types that may be | |
| 8137 | involved. */ | |
| 8138 | if ((got_type & GOT_TLS_IE) && GOT_TLS_GD_ANY_P (got_type)) | |
| 8139 | got_type &= ~ (GOT_TLSDESC_GD | GOT_TLS_GD); | |
| 8140 | ||
| 8141 | if (old_got_type != got_type) | |
| 8142 | { | |
| 8143 | if (h != NULL) | |
| cec5225b | 8144 | elf_aarch64_hash_entry (h)->got_type = got_type; |
| a06ea964 NC |
8145 | else |
| 8146 | { | |
| 8147 | struct elf_aarch64_local_symbol *locals; | |
| cec5225b | 8148 | locals = elf_aarch64_locals (abfd); |
| a06ea964 NC |
8149 | BFD_ASSERT (r_symndx < symtab_hdr->sh_info); |
| 8150 | locals[r_symndx].got_type = got_type; | |
| 8151 | } | |
| 8152 | } | |
| 8153 | ||
| cc0efaa8 MS |
8154 | if (htab->root.dynobj == NULL) |
| 8155 | htab->root.dynobj = abfd; | |
| 8156 | if (! aarch64_elf_create_got_section (htab->root.dynobj, info)) | |
| 0a1b45a2 | 8157 | return false; |
| a06ea964 NC |
8158 | break; |
| 8159 | } | |
| 8160 | ||
| a6bb11b2 YZ |
8161 | case BFD_RELOC_AARCH64_CALL26: |
| 8162 | case BFD_RELOC_AARCH64_JUMP26: | |
| a06ea964 NC |
8163 | /* If this is a local symbol then we resolve it |
| 8164 | directly without creating a PLT entry. */ | |
| 8165 | if (h == NULL) | |
| 8166 | continue; | |
| 8167 | ||
| 8168 | h->needs_plt = 1; | |
| 1419bbe5 WN |
8169 | if (h->plt.refcount <= 0) |
| 8170 | h->plt.refcount = 1; | |
| 8171 | else | |
| 8172 | h->plt.refcount += 1; | |
| a06ea964 | 8173 | break; |
| a6bb11b2 YZ |
8174 | |
| 8175 | default: | |
| 8176 | break; | |
| a06ea964 NC |
8177 | } |
| 8178 | } | |
| a6bb11b2 | 8179 | |
| 0a1b45a2 | 8180 | return true; |
| a06ea964 NC |
8181 | } |
| 8182 | ||
| 8183 | /* Treat mapping symbols as special target symbols. */ | |
| 8184 | ||
| 0a1b45a2 | 8185 | static bool |
| cec5225b | 8186 | elfNN_aarch64_is_target_special_symbol (bfd *abfd ATTRIBUTE_UNUSED, |
| a06ea964 NC |
8187 | asymbol *sym) |
| 8188 | { | |
| 8189 | return bfd_is_aarch64_special_symbol_name (sym->name, | |
| 8190 | BFD_AARCH64_SPECIAL_SYM_TYPE_ANY); | |
| 8191 | } | |
| 8192 | ||
| e7679060 AM |
8193 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 8194 | function size and set *CODE_OFF to the function's entry point, | |
| 8195 | otherwise return zero. */ | |
| a06ea964 | 8196 | |
| e7679060 AM |
8197 | static bfd_size_type |
| 8198 | elfNN_aarch64_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 8199 | bfd_vma *code_off) | |
| 8200 | { | |
| 8201 | bfd_size_type size; | |
| 24aebc79 | 8202 | elf_symbol_type * elf_sym = (elf_symbol_type *) sym; |
| a06ea964 | 8203 | |
| e7679060 AM |
8204 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
| 8205 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 | |
| 8206 | || sym->section != sec) | |
| 8207 | return 0; | |
| a06ea964 | 8208 | |
| 24aebc79 NC |
8209 | size = (sym->flags & BSF_SYNTHETIC) ? 0 : elf_sym->internal_elf_sym.st_size; |
| 8210 | ||
| e7679060 | 8211 | if (!(sym->flags & BSF_SYNTHETIC)) |
| 24aebc79 | 8212 | switch (ELF_ST_TYPE (elf_sym->internal_elf_sym.st_info)) |
| e7679060 | 8213 | { |
| a06ea964 | 8214 | case STT_NOTYPE: |
| 24aebc79 NC |
8215 | /* Ignore symbols created by the annobin plugin for gcc and clang. |
| 8216 | These symbols are hidden, local, notype and have a size of 0. */ | |
| 8217 | if (size == 0 | |
| 8218 | && sym->flags & BSF_LOCAL | |
| 8219 | && ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other) == STV_HIDDEN) | |
| 8220 | return 0; | |
| 8221 | /* Fall through. */ | |
| 8222 | case STT_FUNC: | |
| 8223 | /* FIXME: Allow STT_GNU_IFUNC as well ? */ | |
| a06ea964 | 8224 | break; |
| e7679060 AM |
8225 | default: |
| 8226 | return 0; | |
| 8227 | } | |
| 24aebc79 | 8228 | |
| e7679060 AM |
8229 | if ((sym->flags & BSF_LOCAL) |
| 8230 | && bfd_is_aarch64_special_symbol_name (sym->name, | |
| 8231 | BFD_AARCH64_SPECIAL_SYM_TYPE_ANY)) | |
| 8232 | return 0; | |
| a06ea964 | 8233 | |
| e7679060 | 8234 | *code_off = sym->value; |
| 24aebc79 NC |
8235 | |
| 8236 | /* Do not return 0 for the function's size. */ | |
| 8237 | return size ? size : 1; | |
| a06ea964 NC |
8238 | } |
| 8239 | ||
| 0a1b45a2 | 8240 | static bool |
| cec5225b | 8241 | elfNN_aarch64_find_inliner_info (bfd *abfd, |
| a06ea964 NC |
8242 | const char **filename_ptr, |
| 8243 | const char **functionname_ptr, | |
| 8244 | unsigned int *line_ptr) | |
| 8245 | { | |
| 0a1b45a2 | 8246 | bool found; |
| a06ea964 NC |
8247 | found = _bfd_dwarf2_find_inliner_info |
| 8248 | (abfd, filename_ptr, | |
| 8249 | functionname_ptr, line_ptr, &elf_tdata (abfd)->dwarf2_find_line_info); | |
| 8250 | return found; | |
| 8251 | } | |
| 8252 | ||
| 8253 | ||
| 0a1b45a2 | 8254 | static bool |
| ed7e9d0b | 8255 | elfNN_aarch64_init_file_header (bfd *abfd, struct bfd_link_info *link_info) |
| a06ea964 NC |
8256 | { |
| 8257 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
| 8258 | ||
| ed7e9d0b | 8259 | if (!_bfd_elf_init_file_header (abfd, link_info)) |
| 0a1b45a2 | 8260 | return false; |
| ed7e9d0b | 8261 | |
| a06ea964 | 8262 | i_ehdrp = elf_elfheader (abfd); |
| a06ea964 | 8263 | i_ehdrp->e_ident[EI_ABIVERSION] = AARCH64_ELF_ABI_VERSION; |
| 0a1b45a2 | 8264 | return true; |
| a06ea964 NC |
8265 | } |
| 8266 | ||
| 8267 | static enum elf_reloc_type_class | |
| cec5225b | 8268 | elfNN_aarch64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
| 7e612e98 AM |
8269 | const asection *rel_sec ATTRIBUTE_UNUSED, |
| 8270 | const Elf_Internal_Rela *rela) | |
| a06ea964 | 8271 | { |
| f2e6a843 SN |
8272 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); |
| 8273 | ||
| 8274 | if (htab->root.dynsym != NULL | |
| 8275 | && htab->root.dynsym->contents != NULL) | |
| 8276 | { | |
| 8277 | /* Check relocation against STT_GNU_IFUNC symbol if there are | |
| 8278 | dynamic symbols. */ | |
| 8279 | bfd *abfd = info->output_bfd; | |
| 8280 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
| 8281 | unsigned long r_symndx = ELFNN_R_SYM (rela->r_info); | |
| 8282 | if (r_symndx != STN_UNDEF) | |
| 8283 | { | |
| 8284 | Elf_Internal_Sym sym; | |
| 8285 | if (!bed->s->swap_symbol_in (abfd, | |
| 8286 | (htab->root.dynsym->contents | |
| 8287 | + r_symndx * bed->s->sizeof_sym), | |
| 8288 | 0, &sym)) | |
| 8289 | { | |
| 8290 | /* xgettext:c-format */ | |
| 871b3ab2 | 8291 | _bfd_error_handler (_("%pB symbol number %lu references" |
| f2e6a843 SN |
8292 | " nonexistent SHT_SYMTAB_SHNDX section"), |
| 8293 | abfd, r_symndx); | |
| 8294 | /* Ideally an error class should be returned here. */ | |
| 8295 | } | |
| 8296 | else if (ELF_ST_TYPE (sym.st_info) == STT_GNU_IFUNC) | |
| 8297 | return reloc_class_ifunc; | |
| 8298 | } | |
| 8299 | } | |
| 8300 | ||
| cec5225b | 8301 | switch ((int) ELFNN_R_TYPE (rela->r_info)) |
| a06ea964 | 8302 | { |
| f2e6a843 SN |
8303 | case AARCH64_R (IRELATIVE): |
| 8304 | return reloc_class_ifunc; | |
| a6bb11b2 | 8305 | case AARCH64_R (RELATIVE): |
| a06ea964 | 8306 | return reloc_class_relative; |
| a6bb11b2 | 8307 | case AARCH64_R (JUMP_SLOT): |
| a06ea964 | 8308 | return reloc_class_plt; |
| a6bb11b2 | 8309 | case AARCH64_R (COPY): |
| a06ea964 NC |
8310 | return reloc_class_copy; |
| 8311 | default: | |
| 8312 | return reloc_class_normal; | |
| 8313 | } | |
| 8314 | } | |
| 8315 | ||
| a06ea964 NC |
8316 | /* Handle an AArch64 specific section when reading an object file. This is |
| 8317 | called when bfd_section_from_shdr finds a section with an unknown | |
| 8318 | type. */ | |
| 8319 | ||
| 0a1b45a2 | 8320 | static bool |
| cec5225b | 8321 | elfNN_aarch64_section_from_shdr (bfd *abfd, |
| a06ea964 NC |
8322 | Elf_Internal_Shdr *hdr, |
| 8323 | const char *name, int shindex) | |
| 8324 | { | |
| 8325 | /* There ought to be a place to keep ELF backend specific flags, but | |
| 8326 | at the moment there isn't one. We just keep track of the | |
| 8327 | sections by their name, instead. Fortunately, the ABI gives | |
| 8328 | names for all the AArch64 specific sections, so we will probably get | |
| 8329 | away with this. */ | |
| 8330 | switch (hdr->sh_type) | |
| 8331 | { | |
| 8332 | case SHT_AARCH64_ATTRIBUTES: | |
| 8333 | break; | |
| 8334 | ||
| 8335 | default: | |
| 0a1b45a2 | 8336 | return false; |
| a06ea964 NC |
8337 | } |
| 8338 | ||
| 8339 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
| 0a1b45a2 | 8340 | return false; |
| a06ea964 | 8341 | |
| 0a1b45a2 | 8342 | return true; |
| a06ea964 NC |
8343 | } |
| 8344 | ||
| d0ff5ca9 LM |
8345 | /* Process any AArch64-specific program segment types. */ |
| 8346 | ||
| 8347 | static bool | |
| 8348 | elfNN_aarch64_section_from_phdr (bfd *abfd ATTRIBUTE_UNUSED, | |
| 8349 | Elf_Internal_Phdr *hdr, | |
| 8350 | int hdr_index ATTRIBUTE_UNUSED, | |
| 8351 | const char *name ATTRIBUTE_UNUSED) | |
| 8352 | { | |
| 8353 | /* Right now we only handle the PT_AARCH64_MEMTAG_MTE segment type. */ | |
| 8354 | if (hdr == NULL || hdr->p_type != PT_AARCH64_MEMTAG_MTE) | |
| 8355 | return false; | |
| 8356 | ||
| 8357 | if (hdr->p_filesz > 0) | |
| 8358 | { | |
| 8359 | /* Sections created from memory tag p_type's are always named | |
| 8360 | "memtag". This makes it easier for tools (for example, GDB) | |
| 8361 | to find them. */ | |
| 8362 | asection *newsect = bfd_make_section_anyway (abfd, "memtag"); | |
| 8363 | ||
| 8364 | if (newsect == NULL) | |
| 8365 | return false; | |
| 8366 | ||
| 8367 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); | |
| 8368 | ||
| 8369 | /* p_vaddr holds the original start address of the tagged memory | |
| 8370 | range. */ | |
| 8371 | newsect->vma = hdr->p_vaddr / opb; | |
| 8372 | ||
| 8373 | /* p_filesz holds the storage size of the packed tags. */ | |
| 8374 | newsect->size = hdr->p_filesz; | |
| 8375 | newsect->filepos = hdr->p_offset; | |
| 8376 | ||
| 8377 | /* p_memsz holds the size of the memory range that contains tags. The | |
| 8378 | section's rawsize field is reused for this purpose. */ | |
| 8379 | newsect->rawsize = hdr->p_memsz; | |
| 8380 | ||
| 8381 | /* Make sure the section's flags has SEC_HAS_CONTENTS set, otherwise | |
| 8382 | BFD will return all zeroes when attempting to get contents from this | |
| 8383 | section. */ | |
| 8384 | newsect->flags |= SEC_HAS_CONTENTS; | |
| 8385 | } | |
| 8386 | ||
| 8387 | return true; | |
| 8388 | } | |
| 8389 | ||
| 8390 | /* Implements the bfd_elf_modify_headers hook for aarch64. */ | |
| 8391 | ||
| 8392 | static bool | |
| 8393 | elfNN_aarch64_modify_headers (bfd *abfd, | |
| 8394 | struct bfd_link_info *info) | |
| 8395 | { | |
| 8396 | struct elf_segment_map *m; | |
| 8397 | unsigned int segment_count = 0; | |
| 8398 | Elf_Internal_Phdr *p; | |
| 8399 | ||
| 8400 | for (m = elf_seg_map (abfd); m != NULL; m = m->next, segment_count++) | |
| 8401 | { | |
| 8402 | /* We are only interested in the memory tag segment that will be dumped | |
| 8403 | to a core file. If we have no memory tags or this isn't a core file we | |
| 8404 | are dealing with, just skip this segment. */ | |
| 8405 | if (m->p_type != PT_AARCH64_MEMTAG_MTE | |
| 8406 | || bfd_get_format (abfd) != bfd_core) | |
| 8407 | continue; | |
| 8408 | ||
| 8409 | /* For memory tag segments in core files, the size of the file contents | |
| 8410 | is smaller than the size of the memory range. Adjust the memory size | |
| 8411 | accordingly. The real memory size is held in the section's rawsize | |
| 8412 | field. */ | |
| 8413 | if (m->count > 0) | |
| 8414 | { | |
| 8415 | p = elf_tdata (abfd)->phdr; | |
| 8416 | p += m->idx; | |
| 8417 | p->p_memsz = m->sections[0]->rawsize; | |
| 8418 | p->p_flags = 0; | |
| 8419 | p->p_paddr = 0; | |
| 8420 | p->p_align = 0; | |
| 8421 | } | |
| 8422 | } | |
| 8423 | ||
| 8424 | /* Give the generic code a chance to handle the headers. */ | |
| 8425 | return _bfd_elf_modify_headers (abfd, info); | |
| 8426 | } | |
| 8427 | ||
| a06ea964 NC |
8428 | /* A structure used to record a list of sections, independently |
| 8429 | of the next and prev fields in the asection structure. */ | |
| 8430 | typedef struct section_list | |
| 8431 | { | |
| 8432 | asection *sec; | |
| 8433 | struct section_list *next; | |
| 8434 | struct section_list *prev; | |
| 8435 | } | |
| 8436 | section_list; | |
| 8437 | ||
| 8438 | /* Unfortunately we need to keep a list of sections for which | |
| 8439 | an _aarch64_elf_section_data structure has been allocated. This | |
| cec5225b | 8440 | is because it is possible for functions like elfNN_aarch64_write_section |
| a06ea964 NC |
8441 | to be called on a section which has had an elf_data_structure |
| 8442 | allocated for it (and so the used_by_bfd field is valid) but | |
| 8443 | for which the AArch64 extended version of this structure - the | |
| 8444 | _aarch64_elf_section_data structure - has not been allocated. */ | |
| 8445 | static section_list *sections_with_aarch64_elf_section_data = NULL; | |
| 8446 | ||
| 8447 | static void | |
| 8448 | record_section_with_aarch64_elf_section_data (asection *sec) | |
| 8449 | { | |
| 8450 | struct section_list *entry; | |
| 8451 | ||
| 8452 | entry = bfd_malloc (sizeof (*entry)); | |
| 8453 | if (entry == NULL) | |
| 8454 | return; | |
| 8455 | entry->sec = sec; | |
| 8456 | entry->next = sections_with_aarch64_elf_section_data; | |
| 8457 | entry->prev = NULL; | |
| 8458 | if (entry->next != NULL) | |
| 8459 | entry->next->prev = entry; | |
| 8460 | sections_with_aarch64_elf_section_data = entry; | |
| 8461 | } | |
| 8462 | ||
| 8463 | static struct section_list * | |
| 8464 | find_aarch64_elf_section_entry (asection *sec) | |
| 8465 | { | |
| 8466 | struct section_list *entry; | |
| 8467 | static struct section_list *last_entry = NULL; | |
| 8468 | ||
| 8469 | /* This is a short cut for the typical case where the sections are added | |
| 8470 | to the sections_with_aarch64_elf_section_data list in forward order and | |
| 8471 | then looked up here in backwards order. This makes a real difference | |
| 8472 | to the ld-srec/sec64k.exp linker test. */ | |
| 8473 | entry = sections_with_aarch64_elf_section_data; | |
| 8474 | if (last_entry != NULL) | |
| 8475 | { | |
| 8476 | if (last_entry->sec == sec) | |
| 8477 | entry = last_entry; | |
| 8478 | else if (last_entry->next != NULL && last_entry->next->sec == sec) | |
| 8479 | entry = last_entry->next; | |
| 8480 | } | |
| 8481 | ||
| 8482 | for (; entry; entry = entry->next) | |
| 8483 | if (entry->sec == sec) | |
| 8484 | break; | |
| 8485 | ||
| 8486 | if (entry) | |
| 8487 | /* Record the entry prior to this one - it is the entry we are | |
| 8488 | most likely to want to locate next time. Also this way if we | |
| 8489 | have been called from | |
| 8490 | unrecord_section_with_aarch64_elf_section_data () we will not | |
| 8491 | be caching a pointer that is about to be freed. */ | |
| 8492 | last_entry = entry->prev; | |
| 8493 | ||
| 8494 | return entry; | |
| 8495 | } | |
| 8496 | ||
| 8497 | static void | |
| 8498 | unrecord_section_with_aarch64_elf_section_data (asection *sec) | |
| 8499 | { | |
| 8500 | struct section_list *entry; | |
| 8501 | ||
| 8502 | entry = find_aarch64_elf_section_entry (sec); | |
| 8503 | ||
| 8504 | if (entry) | |
| 8505 | { | |
| 8506 | if (entry->prev != NULL) | |
| 8507 | entry->prev->next = entry->next; | |
| 8508 | if (entry->next != NULL) | |
| 8509 | entry->next->prev = entry->prev; | |
| 8510 | if (entry == sections_with_aarch64_elf_section_data) | |
| 8511 | sections_with_aarch64_elf_section_data = entry->next; | |
| 8512 | free (entry); | |
| 8513 | } | |
| 8514 | } | |
| 8515 | ||
| 8516 | ||
| 8517 | typedef struct | |
| 8518 | { | |
| 8519 | void *finfo; | |
| 8520 | struct bfd_link_info *info; | |
| 8521 | asection *sec; | |
| 8522 | int sec_shndx; | |
| 8523 | int (*func) (void *, const char *, Elf_Internal_Sym *, | |
| 8524 | asection *, struct elf_link_hash_entry *); | |
| 8525 | } output_arch_syminfo; | |
| 8526 | ||
| 8527 | enum map_symbol_type | |
| 8528 | { | |
| 8529 | AARCH64_MAP_INSN, | |
| 8530 | AARCH64_MAP_DATA | |
| 8531 | }; | |
| 8532 | ||
| 8533 | ||
| 8534 | /* Output a single mapping symbol. */ | |
| 8535 | ||
| 0a1b45a2 | 8536 | static bool |
| cec5225b | 8537 | elfNN_aarch64_output_map_sym (output_arch_syminfo *osi, |
| a06ea964 NC |
8538 | enum map_symbol_type type, bfd_vma offset) |
| 8539 | { | |
| 8540 | static const char *names[2] = { "$x", "$d" }; | |
| 8541 | Elf_Internal_Sym sym; | |
| 8542 | ||
| 8543 | sym.st_value = (osi->sec->output_section->vma | |
| 8544 | + osi->sec->output_offset + offset); | |
| 8545 | sym.st_size = 0; | |
| 8546 | sym.st_other = 0; | |
| 8547 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE); | |
| 8548 | sym.st_shndx = osi->sec_shndx; | |
| 8549 | return osi->func (osi->finfo, names[type], &sym, osi->sec, NULL) == 1; | |
| 8550 | } | |
| 8551 | ||
| a06ea964 NC |
8552 | /* Output a single local symbol for a generated stub. */ |
| 8553 | ||
| 0a1b45a2 | 8554 | static bool |
| cec5225b | 8555 | elfNN_aarch64_output_stub_sym (output_arch_syminfo *osi, const char *name, |
| a06ea964 NC |
8556 | bfd_vma offset, bfd_vma size) |
| 8557 | { | |
| 8558 | Elf_Internal_Sym sym; | |
| 8559 | ||
| 8560 | sym.st_value = (osi->sec->output_section->vma | |
| 8561 | + osi->sec->output_offset + offset); | |
| 8562 | sym.st_size = size; | |
| 8563 | sym.st_other = 0; | |
| 8564 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FUNC); | |
| 8565 | sym.st_shndx = osi->sec_shndx; | |
| 8566 | return osi->func (osi->finfo, name, &sym, osi->sec, NULL) == 1; | |
| 8567 | } | |
| 8568 | ||
| 0a1b45a2 | 8569 | static bool |
| a06ea964 NC |
8570 | aarch64_map_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 8571 | { | |
| cec5225b | 8572 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| a06ea964 NC |
8573 | asection *stub_sec; |
| 8574 | bfd_vma addr; | |
| 8575 | char *stub_name; | |
| 8576 | output_arch_syminfo *osi; | |
| 8577 | ||
| 8578 | /* Massage our args to the form they really have. */ | |
| cec5225b | 8579 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; |
| a06ea964 NC |
8580 | osi = (output_arch_syminfo *) in_arg; |
| 8581 | ||
| 8582 | stub_sec = stub_entry->stub_sec; | |
| 8583 | ||
| 8584 | /* Ensure this stub is attached to the current section being | |
| 8585 | processed. */ | |
| 8586 | if (stub_sec != osi->sec) | |
| 0a1b45a2 | 8587 | return true; |
| a06ea964 NC |
8588 | |
| 8589 | addr = (bfd_vma) stub_entry->stub_offset; | |
| 8590 | ||
| 8591 | stub_name = stub_entry->output_name; | |
| 8592 | ||
| 8593 | switch (stub_entry->stub_type) | |
| 8594 | { | |
| 8595 | case aarch64_stub_adrp_branch: | |
| cec5225b | 8596 | if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr, |
| a06ea964 | 8597 | sizeof (aarch64_adrp_branch_stub))) |
| 0a1b45a2 | 8598 | return false; |
| cec5225b | 8599 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) |
| 0a1b45a2 | 8600 | return false; |
| a06ea964 NC |
8601 | break; |
| 8602 | case aarch64_stub_long_branch: | |
| cec5225b | 8603 | if (!elfNN_aarch64_output_stub_sym |
| a06ea964 | 8604 | (osi, stub_name, addr, sizeof (aarch64_long_branch_stub))) |
| 0a1b45a2 | 8605 | return false; |
| cec5225b | 8606 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) |
| 0a1b45a2 | 8607 | return false; |
| cec5225b | 8608 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_DATA, addr + 16)) |
| 0a1b45a2 | 8609 | return false; |
| a06ea964 | 8610 | break; |
| 15b4f66b SN |
8611 | case aarch64_stub_bti_direct_branch: |
| 8612 | if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr, | |
| 8613 | sizeof (aarch64_bti_direct_branch_stub))) | |
| 8614 | return false; | |
| 8615 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) | |
| 8616 | return false; | |
| 8617 | break; | |
| 68fcca92 JW |
8618 | case aarch64_stub_erratum_835769_veneer: |
| 8619 | if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr, | |
| 8620 | sizeof (aarch64_erratum_835769_stub))) | |
| 0a1b45a2 | 8621 | return false; |
| 68fcca92 | 8622 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) |
| 0a1b45a2 | 8623 | return false; |
| 68fcca92 | 8624 | break; |
| 4106101c MS |
8625 | case aarch64_stub_erratum_843419_veneer: |
| 8626 | if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr, | |
| 8627 | sizeof (aarch64_erratum_843419_stub))) | |
| 0a1b45a2 | 8628 | return false; |
| 4106101c | 8629 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) |
| 0a1b45a2 | 8630 | return false; |
| 4106101c | 8631 | break; |
| 9fca35fc TC |
8632 | case aarch64_stub_none: |
| 8633 | break; | |
| 4106101c | 8634 | |
| a06ea964 | 8635 | default: |
| 8e2fe09f | 8636 | abort (); |
| a06ea964 NC |
8637 | } |
| 8638 | ||
| 0a1b45a2 | 8639 | return true; |
| a06ea964 NC |
8640 | } |
| 8641 | ||
| 8642 | /* Output mapping symbols for linker generated sections. */ | |
| 8643 | ||
| 0a1b45a2 | 8644 | static bool |
| cec5225b | 8645 | elfNN_aarch64_output_arch_local_syms (bfd *output_bfd, |
| a06ea964 NC |
8646 | struct bfd_link_info *info, |
| 8647 | void *finfo, | |
| 8648 | int (*func) (void *, const char *, | |
| 8649 | Elf_Internal_Sym *, | |
| 8650 | asection *, | |
| 8651 | struct elf_link_hash_entry | |
| 8652 | *)) | |
| 8653 | { | |
| 8654 | output_arch_syminfo osi; | |
| cec5225b | 8655 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 | 8656 | |
| 25d17459 L |
8657 | if (info->strip == strip_all |
| 8658 | && !info->emitrelocations | |
| 8659 | && !bfd_link_relocatable (info)) | |
| 8660 | return true; | |
| 8661 | ||
| cec5225b | 8662 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
8663 | |
| 8664 | osi.finfo = finfo; | |
| 8665 | osi.info = info; | |
| 8666 | osi.func = func; | |
| 8667 | ||
| 8668 | /* Long calls stubs. */ | |
| 8669 | if (htab->stub_bfd && htab->stub_bfd->sections) | |
| 8670 | { | |
| 8671 | asection *stub_sec; | |
| 8672 | ||
| 8673 | for (stub_sec = htab->stub_bfd->sections; | |
| 8674 | stub_sec != NULL; stub_sec = stub_sec->next) | |
| 8675 | { | |
| 8676 | /* Ignore non-stub sections. */ | |
| 8677 | if (!strstr (stub_sec->name, STUB_SUFFIX)) | |
| 8678 | continue; | |
| 8679 | ||
| 8680 | osi.sec = stub_sec; | |
| 8681 | ||
| 8682 | osi.sec_shndx = _bfd_elf_section_from_bfd_section | |
| 8683 | (output_bfd, osi.sec->output_section); | |
| 8684 | ||
| 61865519 MS |
8685 | /* The first instruction in a stub is always a branch. */ |
| 8686 | if (!elfNN_aarch64_output_map_sym (&osi, AARCH64_MAP_INSN, 0)) | |
| 0a1b45a2 | 8687 | return false; |
| 61865519 | 8688 | |
| a06ea964 NC |
8689 | bfd_hash_traverse (&htab->stub_hash_table, aarch64_map_one_stub, |
| 8690 | &osi); | |
| 8691 | } | |
| 8692 | } | |
| 8693 | ||
| 8694 | /* Finally, output mapping symbols for the PLT. */ | |
| 8695 | if (!htab->root.splt || htab->root.splt->size == 0) | |
| 0a1b45a2 | 8696 | return true; |
| a06ea964 | 8697 | |
| a06ea964 NC |
8698 | osi.sec_shndx = _bfd_elf_section_from_bfd_section |
| 8699 | (output_bfd, htab->root.splt->output_section); | |
| 8700 | osi.sec = htab->root.splt; | |
| 8701 | ||
| 73524045 | 8702 | elfNN_aarch64_output_map_sym (&osi, AARCH64_MAP_INSN, 0); |
| a06ea964 | 8703 | |
| 0a1b45a2 | 8704 | return true; |
| a06ea964 NC |
8705 | |
| 8706 | } | |
| 8707 | ||
| 8708 | /* Allocate target specific section data. */ | |
| 8709 | ||
| 0a1b45a2 | 8710 | static bool |
| cec5225b | 8711 | elfNN_aarch64_new_section_hook (bfd *abfd, asection *sec) |
| a06ea964 NC |
8712 | { |
| 8713 | if (!sec->used_by_bfd) | |
| 8714 | { | |
| 8715 | _aarch64_elf_section_data *sdata; | |
| 986f0783 | 8716 | size_t amt = sizeof (*sdata); |
| a06ea964 NC |
8717 | |
| 8718 | sdata = bfd_zalloc (abfd, amt); | |
| 8719 | if (sdata == NULL) | |
| 0a1b45a2 | 8720 | return false; |
| a06ea964 NC |
8721 | sec->used_by_bfd = sdata; |
| 8722 | } | |
| 8723 | ||
| 8724 | record_section_with_aarch64_elf_section_data (sec); | |
| 8725 | ||
| 8726 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 8727 | } | |
| 8728 | ||
| 8729 | ||
| 8730 | static void | |
| 8731 | unrecord_section_via_map_over_sections (bfd *abfd ATTRIBUTE_UNUSED, | |
| 8732 | asection *sec, | |
| 8733 | void *ignore ATTRIBUTE_UNUSED) | |
| 8734 | { | |
| 8735 | unrecord_section_with_aarch64_elf_section_data (sec); | |
| 8736 | } | |
| 8737 | ||
| 0a1b45a2 | 8738 | static bool |
| cec5225b | 8739 | elfNN_aarch64_bfd_free_cached_info (bfd *abfd) |
| a06ea964 NC |
8740 | { |
| 8741 | if (abfd->sections) | |
| 8742 | bfd_map_over_sections (abfd, | |
| 8743 | unrecord_section_via_map_over_sections, NULL); | |
| 8744 | ||
| 09d757a5 | 8745 | return _bfd_elf_free_cached_info (abfd); |
| a06ea964 NC |
8746 | } |
| 8747 | ||
| a06ea964 NC |
8748 | /* Create dynamic sections. This is different from the ARM backend in that |
| 8749 | the got, plt, gotplt and their relocation sections are all created in the | |
| 8750 | standard part of the bfd elf backend. */ | |
| 8751 | ||
| 0a1b45a2 | 8752 | static bool |
| cec5225b | 8753 | elfNN_aarch64_create_dynamic_sections (bfd *dynobj, |
| a06ea964 NC |
8754 | struct bfd_link_info *info) |
| 8755 | { | |
| cc0efaa8 MS |
8756 | /* We need to create .got section. */ |
| 8757 | if (!aarch64_elf_create_got_section (dynobj, info)) | |
| 0a1b45a2 | 8758 | return false; |
| a06ea964 | 8759 | |
| 9d19e4fd | 8760 | return _bfd_elf_create_dynamic_sections (dynobj, info); |
| a06ea964 NC |
8761 | } |
| 8762 | ||
| 8763 | ||
| 8764 | /* Allocate space in .plt, .got and associated reloc sections for | |
| 8765 | dynamic relocs. */ | |
| 8766 | ||
| 0a1b45a2 | 8767 | static bool |
| cec5225b | 8768 | elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| a06ea964 NC |
8769 | { |
| 8770 | struct bfd_link_info *info; | |
| cec5225b YZ |
8771 | struct elf_aarch64_link_hash_table *htab; |
| 8772 | struct elf_aarch64_link_hash_entry *eh; | |
| a06ea964 NC |
8773 | struct elf_dyn_relocs *p; |
| 8774 | ||
| 8775 | /* An example of a bfd_link_hash_indirect symbol is versioned | |
| 8776 | symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect) | |
| 8777 | -> __gxx_personality_v0(bfd_link_hash_defined) | |
| 8778 | ||
| 8779 | There is no need to process bfd_link_hash_indirect symbols here | |
| 8780 | because we will also be presented with the concrete instance of | |
| cec5225b | 8781 | the symbol and elfNN_aarch64_copy_indirect_symbol () will have been |
| a06ea964 | 8782 | called to copy all relevant data from the generic to the concrete |
| 2d0ca824 | 8783 | symbol instance. */ |
| a06ea964 | 8784 | if (h->root.type == bfd_link_hash_indirect) |
| 0a1b45a2 | 8785 | return true; |
| a06ea964 NC |
8786 | |
| 8787 | if (h->root.type == bfd_link_hash_warning) | |
| 8788 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 8789 | ||
| 8790 | info = (struct bfd_link_info *) inf; | |
| cec5225b | 8791 | htab = elf_aarch64_hash_table (info); |
| a06ea964 | 8792 | |
| 1419bbe5 WN |
8793 | /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it |
| 8794 | here if it is defined and referenced in a non-shared object. */ | |
| 8795 | if (h->type == STT_GNU_IFUNC | |
| 8796 | && h->def_regular) | |
| 0a1b45a2 | 8797 | return true; |
| 1419bbe5 | 8798 | else if (htab->root.dynamic_sections_created && h->plt.refcount > 0) |
| a06ea964 NC |
8799 | { |
| 8800 | /* Make sure this symbol is output as a dynamic symbol. | |
| 07d6d2b8 | 8801 | Undefined weak syms won't yet be marked as dynamic. */ |
| ff07562f JW |
8802 | if (h->dynindx == -1 && !h->forced_local |
| 8803 | && h->root.type == bfd_link_hash_undefweak) | |
| a06ea964 NC |
8804 | { |
| 8805 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 0a1b45a2 | 8806 | return false; |
| a06ea964 NC |
8807 | } |
| 8808 | ||
| 0e1862bb | 8809 | if (bfd_link_pic (info) || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) |
| a06ea964 NC |
8810 | { |
| 8811 | asection *s = htab->root.splt; | |
| 8812 | ||
| 8813 | /* If this is the first .plt entry, make room for the special | |
| 8814 | first entry. */ | |
| 8815 | if (s->size == 0) | |
| 8816 | s->size += htab->plt_header_size; | |
| 8817 | ||
| 8818 | h->plt.offset = s->size; | |
| 8819 | ||
| 8820 | /* If this symbol is not defined in a regular file, and we are | |
| 8821 | not generating a shared library, then set the symbol to this | |
| 8822 | location in the .plt. This is required to make function | |
| 8823 | pointers compare as equal between the normal executable and | |
| 8824 | the shared library. */ | |
| 0e1862bb | 8825 | if (!bfd_link_pic (info) && !h->def_regular) |
| a06ea964 NC |
8826 | { |
| 8827 | h->root.u.def.section = s; | |
| 8828 | h->root.u.def.value = h->plt.offset; | |
| 8829 | } | |
| 8830 | ||
| 8831 | /* Make room for this entry. For now we only create the | |
| 8832 | small model PLT entries. We later need to find a way | |
| 8833 | of relaxing into these from the large model PLT entries. */ | |
| 37c18eed | 8834 | s->size += htab->plt_entry_size; |
| a06ea964 NC |
8835 | |
| 8836 | /* We also need to make an entry in the .got.plt section, which | |
| 8837 | will be placed in the .got section by the linker script. */ | |
| 8838 | htab->root.sgotplt->size += GOT_ENTRY_SIZE; | |
| 8839 | ||
| 8840 | /* We also need to make an entry in the .rela.plt section. */ | |
| 8841 | htab->root.srelplt->size += RELOC_SIZE (htab); | |
| 8842 | ||
| 8843 | /* We need to ensure that all GOT entries that serve the PLT | |
| 8844 | are consecutive with the special GOT slots [0] [1] and | |
| 8845 | [2]. Any addtional relocations, such as | |
| 8846 | R_AARCH64_TLSDESC, must be placed after the PLT related | |
| 8847 | entries. We abuse the reloc_count such that during | |
| 8848 | sizing we adjust reloc_count to indicate the number of | |
| 8849 | PLT related reserved entries. In subsequent phases when | |
| 8850 | filling in the contents of the reloc entries, PLT related | |
| 8851 | entries are placed by computing their PLT index (0 | |
| 8852 | .. reloc_count). While other none PLT relocs are placed | |
| 8853 | at the slot indicated by reloc_count and reloc_count is | |
| 8854 | updated. */ | |
| 8855 | ||
| 8856 | htab->root.srelplt->reloc_count++; | |
| 823710d5 SN |
8857 | |
| 8858 | /* Mark the DSO in case R_<CLS>_JUMP_SLOT relocs against | |
| 8859 | variant PCS symbols are present. */ | |
| 8860 | if (h->other & STO_AARCH64_VARIANT_PCS) | |
| 8861 | htab->variant_pcs = 1; | |
| 8862 | ||
| a06ea964 NC |
8863 | } |
| 8864 | else | |
| 8865 | { | |
| 8866 | h->plt.offset = (bfd_vma) - 1; | |
| 8867 | h->needs_plt = 0; | |
| 8868 | } | |
| 8869 | } | |
| 8870 | else | |
| 8871 | { | |
| 8872 | h->plt.offset = (bfd_vma) - 1; | |
| 8873 | h->needs_plt = 0; | |
| 8874 | } | |
| 8875 | ||
| cec5225b | 8876 | eh = (struct elf_aarch64_link_hash_entry *) h; |
| a06ea964 NC |
8877 | eh->tlsdesc_got_jump_table_offset = (bfd_vma) - 1; |
| 8878 | ||
| 8879 | if (h->got.refcount > 0) | |
| 8880 | { | |
| 0a1b45a2 | 8881 | bool dyn; |
| cec5225b | 8882 | unsigned got_type = elf_aarch64_hash_entry (h)->got_type; |
| a06ea964 NC |
8883 | |
| 8884 | h->got.offset = (bfd_vma) - 1; | |
| 8885 | ||
| 8886 | dyn = htab->root.dynamic_sections_created; | |
| 8887 | ||
| 8888 | /* Make sure this symbol is output as a dynamic symbol. | |
| 07d6d2b8 | 8889 | Undefined weak syms won't yet be marked as dynamic. */ |
| ff07562f JW |
8890 | if (dyn && h->dynindx == -1 && !h->forced_local |
| 8891 | && h->root.type == bfd_link_hash_undefweak) | |
| a06ea964 NC |
8892 | { |
| 8893 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 0a1b45a2 | 8894 | return false; |
| a06ea964 NC |
8895 | } |
| 8896 | ||
| 8897 | if (got_type == GOT_UNKNOWN) | |
| 8898 | { | |
| 8899 | } | |
| 8900 | else if (got_type == GOT_NORMAL) | |
| 8901 | { | |
| 8902 | h->got.offset = htab->root.sgot->size; | |
| 8903 | htab->root.sgot->size += GOT_ENTRY_SIZE; | |
| 8904 | if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 8905 | || h->root.type != bfd_link_hash_undefweak) | |
| 0e1862bb | 8906 | && (bfd_link_pic (info) |
| a377ae2a SN |
8907 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) |
| 8908 | /* Undefined weak symbol in static PIE resolves to 0 without | |
| 8909 | any dynamic relocations. */ | |
| 8910 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
| a06ea964 NC |
8911 | { |
| 8912 | htab->root.srelgot->size += RELOC_SIZE (htab); | |
| 8913 | } | |
| 8914 | } | |
| 8915 | else | |
| 8916 | { | |
| 8917 | int indx; | |
| 8918 | if (got_type & GOT_TLSDESC_GD) | |
| 8919 | { | |
| 8920 | eh->tlsdesc_got_jump_table_offset = | |
| 8921 | (htab->root.sgotplt->size | |
| 8922 | - aarch64_compute_jump_table_size (htab)); | |
| 8923 | htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2; | |
| 8924 | h->got.offset = (bfd_vma) - 2; | |
| 8925 | } | |
| 8926 | ||
| 8927 | if (got_type & GOT_TLS_GD) | |
| 8928 | { | |
| 8929 | h->got.offset = htab->root.sgot->size; | |
| 8930 | htab->root.sgot->size += GOT_ENTRY_SIZE * 2; | |
| 8931 | } | |
| 8932 | ||
| 8933 | if (got_type & GOT_TLS_IE) | |
| 8934 | { | |
| 8935 | h->got.offset = htab->root.sgot->size; | |
| 8936 | htab->root.sgot->size += GOT_ENTRY_SIZE; | |
| 8937 | } | |
| 8938 | ||
| 8939 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
| 8940 | if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 8941 | || h->root.type != bfd_link_hash_undefweak) | |
| 6dda7875 | 8942 | && (!bfd_link_executable (info) |
| a06ea964 NC |
8943 | || indx != 0 |
| 8944 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) | |
| 8945 | { | |
| 8946 | if (got_type & GOT_TLSDESC_GD) | |
| 8947 | { | |
| 8948 | htab->root.srelplt->size += RELOC_SIZE (htab); | |
| 8949 | /* Note reloc_count not incremented here! We have | |
| 8950 | already adjusted reloc_count for this relocation | |
| 8951 | type. */ | |
| 8952 | ||
| 8953 | /* TLSDESC PLT is now needed, but not yet determined. */ | |
| 9bcc30e4 | 8954 | htab->root.tlsdesc_plt = (bfd_vma) - 1; |
| a06ea964 NC |
8955 | } |
| 8956 | ||
| 8957 | if (got_type & GOT_TLS_GD) | |
| 8958 | htab->root.srelgot->size += RELOC_SIZE (htab) * 2; | |
| 8959 | ||
| 8960 | if (got_type & GOT_TLS_IE) | |
| 8961 | htab->root.srelgot->size += RELOC_SIZE (htab); | |
| 8962 | } | |
| 8963 | } | |
| 8964 | } | |
| 8965 | else | |
| 8966 | { | |
| 8967 | h->got.offset = (bfd_vma) - 1; | |
| 8968 | } | |
| 8969 | ||
| 190eb1dd | 8970 | if (h->dyn_relocs == NULL) |
| 0a1b45a2 | 8971 | return true; |
| a06ea964 | 8972 | |
| 90b7a5df FS |
8973 | for (p = h->dyn_relocs; p != NULL; p = p->next) |
| 8974 | if (eh->def_protected) | |
| 8975 | { | |
| 8976 | /* Disallow copy relocations against protected symbol. */ | |
| 8977 | asection *s = p->sec->output_section; | |
| 8978 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 8979 | { | |
| 8980 | info->callbacks->einfo | |
| 8981 | /* xgettext:c-format */ | |
| 8982 | (_ ("%F%P: %pB: copy relocation against non-copyable " | |
| 8983 | "protected symbol `%s'\n"), | |
| 8984 | p->sec->owner, h->root.root.string); | |
| 8985 | return false; | |
| 8986 | } | |
| 8987 | } | |
| 8988 | ||
| a06ea964 NC |
8989 | /* In the shared -Bsymbolic case, discard space allocated for |
| 8990 | dynamic pc-relative relocs against symbols which turn out to be | |
| 8991 | defined in regular objects. For the normal shared case, discard | |
| 8992 | space for pc-relative relocs that have become local due to symbol | |
| 8993 | visibility changes. */ | |
| 8994 | ||
| 0e1862bb | 8995 | if (bfd_link_pic (info)) |
| a06ea964 NC |
8996 | { |
| 8997 | /* Relocs that use pc_count are those that appear on a call | |
| 07d6d2b8 AM |
8998 | insn, or certain REL relocs that can generated via assembly. |
| 8999 | We want calls to protected symbols to resolve directly to the | |
| 9000 | function rather than going via the plt. If people want | |
| 9001 | function pointer comparisons to work as expected then they | |
| 9002 | should avoid writing weird assembly. */ | |
| a06ea964 NC |
9003 | if (SYMBOL_CALLS_LOCAL (info, h)) |
| 9004 | { | |
| 9005 | struct elf_dyn_relocs **pp; | |
| 9006 | ||
| 190eb1dd | 9007 | for (pp = &h->dyn_relocs; (p = *pp) != NULL;) |
| a06ea964 NC |
9008 | { |
| 9009 | p->count -= p->pc_count; | |
| 9010 | p->pc_count = 0; | |
| 9011 | if (p->count == 0) | |
| 9012 | *pp = p->next; | |
| 9013 | else | |
| 9014 | pp = &p->next; | |
| 9015 | } | |
| 9016 | } | |
| 9017 | ||
| 9018 | /* Also discard relocs on undefined weak syms with non-default | |
| 07d6d2b8 | 9019 | visibility. */ |
| 190eb1dd | 9020 | if (h->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak) |
| a06ea964 | 9021 | { |
| ddb7fd0f L |
9022 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
| 9023 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
| 190eb1dd | 9024 | h->dyn_relocs = NULL; |
| a06ea964 NC |
9025 | |
| 9026 | /* Make sure undefined weak symbols are output as a dynamic | |
| 9027 | symbol in PIEs. */ | |
| 9028 | else if (h->dynindx == -1 | |
| 9029 | && !h->forced_local | |
| ff07562f | 9030 | && h->root.type == bfd_link_hash_undefweak |
| a06ea964 | 9031 | && !bfd_elf_link_record_dynamic_symbol (info, h)) |
| 0a1b45a2 | 9032 | return false; |
| a06ea964 NC |
9033 | } |
| 9034 | ||
| 9035 | } | |
| 9036 | else if (ELIMINATE_COPY_RELOCS) | |
| 9037 | { | |
| 9038 | /* For the non-shared case, discard space for relocs against | |
| 07d6d2b8 AM |
9039 | symbols which turn out to need copy relocs or are not |
| 9040 | dynamic. */ | |
| a06ea964 NC |
9041 | |
| 9042 | if (!h->non_got_ref | |
| 9043 | && ((h->def_dynamic | |
| 9044 | && !h->def_regular) | |
| 9045 | || (htab->root.dynamic_sections_created | |
| 9046 | && (h->root.type == bfd_link_hash_undefweak | |
| 9047 | || h->root.type == bfd_link_hash_undefined)))) | |
| 9048 | { | |
| 9049 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9050 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9051 | if (h->dynindx == -1 | |
| 9052 | && !h->forced_local | |
| ff07562f | 9053 | && h->root.type == bfd_link_hash_undefweak |
| a06ea964 | 9054 | && !bfd_elf_link_record_dynamic_symbol (info, h)) |
| 0a1b45a2 | 9055 | return false; |
| a06ea964 NC |
9056 | |
| 9057 | /* If that succeeded, we know we'll be keeping all the | |
| 9058 | relocs. */ | |
| 9059 | if (h->dynindx != -1) | |
| 9060 | goto keep; | |
| 9061 | } | |
| 9062 | ||
| 190eb1dd | 9063 | h->dyn_relocs = NULL; |
| a06ea964 NC |
9064 | |
| 9065 | keep:; | |
| 9066 | } | |
| 9067 | ||
| 9068 | /* Finally, allocate space. */ | |
| 190eb1dd | 9069 | for (p = h->dyn_relocs; p != NULL; p = p->next) |
| a06ea964 NC |
9070 | { |
| 9071 | asection *sreloc; | |
| 9072 | ||
| 9073 | sreloc = elf_section_data (p->sec)->sreloc; | |
| 9074 | ||
| 9075 | BFD_ASSERT (sreloc != NULL); | |
| 9076 | ||
| 9077 | sreloc->size += p->count * RELOC_SIZE (htab); | |
| 9078 | } | |
| 9079 | ||
| 0a1b45a2 | 9080 | return true; |
| a06ea964 NC |
9081 | } |
| 9082 | ||
| 1419bbe5 WN |
9083 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9084 | ifunc dynamic relocs. */ | |
| 9085 | ||
| 0a1b45a2 | 9086 | static bool |
| 1419bbe5 WN |
9087 | elfNN_aarch64_allocate_ifunc_dynrelocs (struct elf_link_hash_entry *h, |
| 9088 | void *inf) | |
| 9089 | { | |
| 9090 | struct bfd_link_info *info; | |
| 9091 | struct elf_aarch64_link_hash_table *htab; | |
| 1419bbe5 WN |
9092 | |
| 9093 | /* An example of a bfd_link_hash_indirect symbol is versioned | |
| 9094 | symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect) | |
| 9095 | -> __gxx_personality_v0(bfd_link_hash_defined) | |
| 9096 | ||
| 9097 | There is no need to process bfd_link_hash_indirect symbols here | |
| 9098 | because we will also be presented with the concrete instance of | |
| 9099 | the symbol and elfNN_aarch64_copy_indirect_symbol () will have been | |
| 9100 | called to copy all relevant data from the generic to the concrete | |
| 2d0ca824 | 9101 | symbol instance. */ |
| 1419bbe5 | 9102 | if (h->root.type == bfd_link_hash_indirect) |
| 0a1b45a2 | 9103 | return true; |
| 1419bbe5 WN |
9104 | |
| 9105 | if (h->root.type == bfd_link_hash_warning) | |
| 9106 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 9107 | ||
| 9108 | info = (struct bfd_link_info *) inf; | |
| 9109 | htab = elf_aarch64_hash_table (info); | |
| 9110 | ||
| 1419bbe5 WN |
9111 | /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it |
| 9112 | here if it is defined and referenced in a non-shared object. */ | |
| 9113 | if (h->type == STT_GNU_IFUNC | |
| 9114 | && h->def_regular) | |
| 9115 | return _bfd_elf_allocate_ifunc_dyn_relocs (info, h, | |
| 190eb1dd | 9116 | &h->dyn_relocs, |
| 1419bbe5 WN |
9117 | htab->plt_entry_size, |
| 9118 | htab->plt_header_size, | |
| 233cc9c1 | 9119 | GOT_ENTRY_SIZE, |
| 0a1b45a2 AM |
9120 | false); |
| 9121 | return true; | |
| 1419bbe5 WN |
9122 | } |
| 9123 | ||
| 1419bbe5 WN |
9124 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9125 | local ifunc dynamic relocs. */ | |
| 9126 | ||
| 1201fda6 | 9127 | static int |
| 1419bbe5 WN |
9128 | elfNN_aarch64_allocate_local_ifunc_dynrelocs (void **slot, void *inf) |
| 9129 | { | |
| 9130 | struct elf_link_hash_entry *h | |
| 9131 | = (struct elf_link_hash_entry *) *slot; | |
| 9132 | ||
| 9133 | if (h->type != STT_GNU_IFUNC | |
| 9134 | || !h->def_regular | |
| 9135 | || !h->ref_regular | |
| 9136 | || !h->forced_local | |
| 9137 | || h->root.type != bfd_link_hash_defined) | |
| 9138 | abort (); | |
| 9139 | ||
| 9140 | return elfNN_aarch64_allocate_ifunc_dynrelocs (h, inf); | |
| 9141 | } | |
| a06ea964 | 9142 | |
| a06ea964 NC |
9143 | /* This is the most important function of all . Innocuosly named |
| 9144 | though ! */ | |
| 2d0ca824 | 9145 | |
| 0a1b45a2 | 9146 | static bool |
| cec5225b | 9147 | elfNN_aarch64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
| a06ea964 NC |
9148 | struct bfd_link_info *info) |
| 9149 | { | |
| cec5225b | 9150 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 NC |
9151 | bfd *dynobj; |
| 9152 | asection *s; | |
| 0a1b45a2 | 9153 | bool relocs; |
| a06ea964 NC |
9154 | bfd *ibfd; |
| 9155 | ||
| cec5225b | 9156 | htab = elf_aarch64_hash_table ((info)); |
| a06ea964 NC |
9157 | dynobj = htab->root.dynobj; |
| 9158 | ||
| 9159 | BFD_ASSERT (dynobj != NULL); | |
| 9160 | ||
| 9161 | if (htab->root.dynamic_sections_created) | |
| 9162 | { | |
| 9b8b325a | 9163 | if (bfd_link_executable (info) && !info->nointerp) |
| a06ea964 NC |
9164 | { |
| 9165 | s = bfd_get_linker_section (dynobj, ".interp"); | |
| 9166 | if (s == NULL) | |
| 9167 | abort (); | |
| 9168 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
| 9169 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
| 9170 | } | |
| 9171 | } | |
| 9172 | ||
| 9173 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9174 | relocs. */ | |
| c72f2fb2 | 9175 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| a06ea964 NC |
9176 | { |
| 9177 | struct elf_aarch64_local_symbol *locals = NULL; | |
| 9178 | Elf_Internal_Shdr *symtab_hdr; | |
| 9179 | asection *srel; | |
| 9180 | unsigned int i; | |
| 9181 | ||
| 9182 | if (!is_aarch64_elf (ibfd)) | |
| 9183 | continue; | |
| 9184 | ||
| 9185 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 9186 | { | |
| 9187 | struct elf_dyn_relocs *p; | |
| 9188 | ||
| 9189 | for (p = (struct elf_dyn_relocs *) | |
| 9190 | (elf_section_data (s)->local_dynrel); p != NULL; p = p->next) | |
| 9191 | { | |
| 9192 | if (!bfd_is_abs_section (p->sec) | |
| 9193 | && bfd_is_abs_section (p->sec->output_section)) | |
| 9194 | { | |
| 9195 | /* Input section has been discarded, either because | |
| 9196 | it is a copy of a linkonce section or due to | |
| 9197 | linker script /DISCARD/, so we'll be discarding | |
| 9198 | the relocs too. */ | |
| 9199 | } | |
| 9200 | else if (p->count != 0) | |
| 9201 | { | |
| 9202 | srel = elf_section_data (p->sec)->sreloc; | |
| 9203 | srel->size += p->count * RELOC_SIZE (htab); | |
| 9204 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
| 9205 | info->flags |= DF_TEXTREL; | |
| 9206 | } | |
| 9207 | } | |
| 9208 | } | |
| 9209 | ||
| cec5225b | 9210 | locals = elf_aarch64_locals (ibfd); |
| a06ea964 NC |
9211 | if (!locals) |
| 9212 | continue; | |
| 9213 | ||
| 9214 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 9215 | srel = htab->root.srelgot; | |
| 9216 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
| 9217 | { | |
| 9218 | locals[i].got_offset = (bfd_vma) - 1; | |
| 9219 | locals[i].tlsdesc_got_jump_table_offset = (bfd_vma) - 1; | |
| 9220 | if (locals[i].got_refcount > 0) | |
| 9221 | { | |
| 9222 | unsigned got_type = locals[i].got_type; | |
| 9223 | if (got_type & GOT_TLSDESC_GD) | |
| 9224 | { | |
| 9225 | locals[i].tlsdesc_got_jump_table_offset = | |
| 9226 | (htab->root.sgotplt->size | |
| 9227 | - aarch64_compute_jump_table_size (htab)); | |
| 9228 | htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2; | |
| 9229 | locals[i].got_offset = (bfd_vma) - 2; | |
| 9230 | } | |
| 9231 | ||
| 9232 | if (got_type & GOT_TLS_GD) | |
| 9233 | { | |
| 9234 | locals[i].got_offset = htab->root.sgot->size; | |
| 9235 | htab->root.sgot->size += GOT_ENTRY_SIZE * 2; | |
| 9236 | } | |
| 9237 | ||
| b53b1bed JW |
9238 | if (got_type & GOT_TLS_IE |
| 9239 | || got_type & GOT_NORMAL) | |
| a06ea964 NC |
9240 | { |
| 9241 | locals[i].got_offset = htab->root.sgot->size; | |
| 9242 | htab->root.sgot->size += GOT_ENTRY_SIZE; | |
| 9243 | } | |
| 9244 | ||
| 9245 | if (got_type == GOT_UNKNOWN) | |
| 9246 | { | |
| 9247 | } | |
| 9248 | ||
| 0e1862bb | 9249 | if (bfd_link_pic (info)) |
| a06ea964 NC |
9250 | { |
| 9251 | if (got_type & GOT_TLSDESC_GD) | |
| 9252 | { | |
| 9253 | htab->root.srelplt->size += RELOC_SIZE (htab); | |
| 9254 | /* Note RELOC_COUNT not incremented here! */ | |
| 9bcc30e4 | 9255 | htab->root.tlsdesc_plt = (bfd_vma) - 1; |
| a06ea964 NC |
9256 | } |
| 9257 | ||
| 9258 | if (got_type & GOT_TLS_GD) | |
| 9259 | htab->root.srelgot->size += RELOC_SIZE (htab) * 2; | |
| 9260 | ||
| b53b1bed JW |
9261 | if (got_type & GOT_TLS_IE |
| 9262 | || got_type & GOT_NORMAL) | |
| a06ea964 NC |
9263 | htab->root.srelgot->size += RELOC_SIZE (htab); |
| 9264 | } | |
| 9265 | } | |
| 9266 | else | |
| 9267 | { | |
| 9268 | locals[i].got_refcount = (bfd_vma) - 1; | |
| 9269 | } | |
| 9270 | } | |
| 9271 | } | |
| 9272 | ||
| 9273 | ||
| 9274 | /* Allocate global sym .plt and .got entries, and space for global | |
| 9275 | sym dynamic relocs. */ | |
| cec5225b | 9276 | elf_link_hash_traverse (&htab->root, elfNN_aarch64_allocate_dynrelocs, |
| a06ea964 NC |
9277 | info); |
| 9278 | ||
| 1419bbe5 WN |
9279 | /* Allocate global ifunc sym .plt and .got entries, and space for global |
| 9280 | ifunc sym dynamic relocs. */ | |
| 9281 | elf_link_hash_traverse (&htab->root, elfNN_aarch64_allocate_ifunc_dynrelocs, | |
| 9282 | info); | |
| 9283 | ||
| 1419bbe5 WN |
9284 | /* Allocate .plt and .got entries, and space for local ifunc symbols. */ |
| 9285 | htab_traverse (htab->loc_hash_table, | |
| 9286 | elfNN_aarch64_allocate_local_ifunc_dynrelocs, | |
| 9287 | info); | |
| a06ea964 NC |
9288 | |
| 9289 | /* For every jump slot reserved in the sgotplt, reloc_count is | |
| 9290 | incremented. However, when we reserve space for TLS descriptors, | |
| 9291 | it's not incremented, so in order to compute the space reserved | |
| 9292 | for them, it suffices to multiply the reloc count by the jump | |
| 9293 | slot size. */ | |
| 9294 | ||
| 9295 | if (htab->root.srelplt) | |
| 8847944f | 9296 | htab->sgotplt_jump_table_size = aarch64_compute_jump_table_size (htab); |
| a06ea964 | 9297 | |
| 9bcc30e4 | 9298 | if (htab->root.tlsdesc_plt) |
| a06ea964 NC |
9299 | { |
| 9300 | if (htab->root.splt->size == 0) | |
| 37c18eed | 9301 | htab->root.splt->size += htab->plt_header_size; |
| a06ea964 | 9302 | |
| a06ea964 | 9303 | /* If we're not using lazy TLS relocations, don't generate the |
| ce12121b | 9304 | GOT and PLT entry required. */ |
| 9bcc30e4 L |
9305 | if ((info->flags & DF_BIND_NOW)) |
| 9306 | htab->root.tlsdesc_plt = 0; | |
| 9307 | else | |
| a06ea964 | 9308 | { |
| 9bcc30e4 | 9309 | htab->root.tlsdesc_plt = htab->root.splt->size; |
| ce12121b TC |
9310 | htab->root.splt->size += htab->tlsdesc_plt_entry_size; |
| 9311 | ||
| 9bcc30e4 | 9312 | htab->root.tlsdesc_got = htab->root.sgot->size; |
| a06ea964 NC |
9313 | htab->root.sgot->size += GOT_ENTRY_SIZE; |
| 9314 | } | |
| 9315 | } | |
| 9316 | ||
| 68fcca92 | 9317 | /* Init mapping symbols information to use later to distingush between |
| 4106101c MS |
9318 | code and data while scanning for errata. */ |
| 9319 | if (htab->fix_erratum_835769 || htab->fix_erratum_843419) | |
| 68fcca92 JW |
9320 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 9321 | { | |
| 9322 | if (!is_aarch64_elf (ibfd)) | |
| 9323 | continue; | |
| 9324 | bfd_elfNN_aarch64_init_maps (ibfd); | |
| 9325 | } | |
| 9326 | ||
| a06ea964 NC |
9327 | /* We now have determined the sizes of the various dynamic sections. |
| 9328 | Allocate memory for them. */ | |
| 0a1b45a2 | 9329 | relocs = false; |
| a06ea964 NC |
9330 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 9331 | { | |
| 9332 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 9333 | continue; | |
| 9334 | ||
| 9335 | if (s == htab->root.splt | |
| 9336 | || s == htab->root.sgot | |
| 9337 | || s == htab->root.sgotplt | |
| 9338 | || s == htab->root.iplt | |
| 9d19e4fd | 9339 | || s == htab->root.igotplt |
| 5474d94f AM |
9340 | || s == htab->root.sdynbss |
| 9341 | || s == htab->root.sdynrelro) | |
| a06ea964 NC |
9342 | { |
| 9343 | /* Strip this section if we don't need it; see the | |
| 9344 | comment below. */ | |
| 9345 | } | |
| 08dedd66 | 9346 | else if (startswith (bfd_section_name (s), ".rela")) |
| a06ea964 NC |
9347 | { |
| 9348 | if (s->size != 0 && s != htab->root.srelplt) | |
| 0a1b45a2 | 9349 | relocs = true; |
| a06ea964 NC |
9350 | |
| 9351 | /* We use the reloc_count field as a counter if we need | |
| 9352 | to copy relocs into the output file. */ | |
| 9353 | if (s != htab->root.srelplt) | |
| 9354 | s->reloc_count = 0; | |
| 9355 | } | |
| 9356 | else | |
| 9357 | { | |
| 9358 | /* It's not one of our sections, so don't allocate space. */ | |
| 9359 | continue; | |
| 9360 | } | |
| 9361 | ||
| 9362 | if (s->size == 0) | |
| 9363 | { | |
| 9364 | /* If we don't need this section, strip it from the | |
| 9365 | output file. This is mostly to handle .rela.bss and | |
| 9366 | .rela.plt. We must create both sections in | |
| 9367 | create_dynamic_sections, because they must be created | |
| 9368 | before the linker maps input sections to output | |
| 9369 | sections. The linker does that before | |
| 9370 | adjust_dynamic_symbol is called, and it is that | |
| 9371 | function which decides whether anything needs to go | |
| 9372 | into these sections. */ | |
| a06ea964 NC |
9373 | s->flags |= SEC_EXCLUDE; |
| 9374 | continue; | |
| 9375 | } | |
| 9376 | ||
| 9377 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
| 9378 | continue; | |
| 9379 | ||
| 9380 | /* Allocate memory for the section contents. We use bfd_zalloc | |
| 07d6d2b8 AM |
9381 | here in case unused entries are not reclaimed before the |
| 9382 | section's contents are written out. This should not happen, | |
| 9383 | but this way if it does, we get a R_AARCH64_NONE reloc instead | |
| 9384 | of garbage. */ | |
| a06ea964 NC |
9385 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
| 9386 | if (s->contents == NULL) | |
| 0a1b45a2 | 9387 | return false; |
| a06ea964 NC |
9388 | } |
| 9389 | ||
| 9390 | if (htab->root.dynamic_sections_created) | |
| 9391 | { | |
| 9392 | /* Add some entries to the .dynamic section. We fill in the | |
| 07d6d2b8 AM |
9393 | values later, in elfNN_aarch64_finish_dynamic_sections, but we |
| 9394 | must add the entries now so that we get the correct size for | |
| 9395 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 9396 | dynamic linker and used by the debugger. */ | |
| a06ea964 NC |
9397 | #define add_dynamic_entry(TAG, VAL) \ |
| 9398 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
| 9399 | ||
| 3084d7a2 | 9400 | if (!_bfd_elf_add_dynamic_tags (output_bfd, info, relocs)) |
| 0a1b45a2 | 9401 | return false; |
| a06ea964 NC |
9402 | |
| 9403 | if (htab->root.splt->size != 0) | |
| 9404 | { | |
| 823710d5 SN |
9405 | if (htab->variant_pcs |
| 9406 | && !add_dynamic_entry (DT_AARCH64_VARIANT_PCS, 0)) | |
| 0a1b45a2 | 9407 | return false; |
| 823710d5 | 9408 | |
| 1dbade74 SD |
9409 | if ((elf_aarch64_tdata (output_bfd)->plt_type == PLT_BTI_PAC) |
| 9410 | && (!add_dynamic_entry (DT_AARCH64_BTI_PLT, 0) | |
| 9411 | || !add_dynamic_entry (DT_AARCH64_PAC_PLT, 0))) | |
| 0a1b45a2 | 9412 | return false; |
| 1dbade74 SD |
9413 | |
| 9414 | else if ((elf_aarch64_tdata (output_bfd)->plt_type == PLT_BTI) | |
| 9415 | && !add_dynamic_entry (DT_AARCH64_BTI_PLT, 0)) | |
| 0a1b45a2 | 9416 | return false; |
| 1dbade74 SD |
9417 | |
| 9418 | else if ((elf_aarch64_tdata (output_bfd)->plt_type == PLT_PAC) | |
| 9419 | && !add_dynamic_entry (DT_AARCH64_PAC_PLT, 0)) | |
| 0a1b45a2 | 9420 | return false; |
| a06ea964 | 9421 | } |
| a06ea964 NC |
9422 | } |
| 9423 | #undef add_dynamic_entry | |
| 9424 | ||
| 0a1b45a2 | 9425 | return true; |
| a06ea964 NC |
9426 | } |
| 9427 | ||
| 9428 | static inline void | |
| caed7120 YZ |
9429 | elf_aarch64_update_plt_entry (bfd *output_bfd, |
| 9430 | bfd_reloc_code_real_type r_type, | |
| 9431 | bfd_byte *plt_entry, bfd_vma value) | |
| a06ea964 | 9432 | { |
| caed7120 YZ |
9433 | reloc_howto_type *howto = elfNN_aarch64_howto_from_bfd_reloc (r_type); |
| 9434 | ||
| 1d75a8e2 NC |
9435 | /* FIXME: We should check the return value from this function call. */ |
| 9436 | (void) _bfd_aarch64_elf_put_addend (output_bfd, plt_entry, r_type, howto, value); | |
| a06ea964 NC |
9437 | } |
| 9438 | ||
| 9439 | static void | |
| cec5225b YZ |
9440 | elfNN_aarch64_create_small_pltn_entry (struct elf_link_hash_entry *h, |
| 9441 | struct elf_aarch64_link_hash_table | |
| 1419bbe5 WN |
9442 | *htab, bfd *output_bfd, |
| 9443 | struct bfd_link_info *info) | |
| a06ea964 NC |
9444 | { |
| 9445 | bfd_byte *plt_entry; | |
| 9446 | bfd_vma plt_index; | |
| 9447 | bfd_vma got_offset; | |
| 9448 | bfd_vma gotplt_entry_address; | |
| 9449 | bfd_vma plt_entry_address; | |
| 9450 | Elf_Internal_Rela rela; | |
| 9451 | bfd_byte *loc; | |
| 1419bbe5 WN |
9452 | asection *plt, *gotplt, *relplt; |
| 9453 | ||
| 9454 | /* When building a static executable, use .iplt, .igot.plt and | |
| 9455 | .rela.iplt sections for STT_GNU_IFUNC symbols. */ | |
| 9456 | if (htab->root.splt != NULL) | |
| 9457 | { | |
| 9458 | plt = htab->root.splt; | |
| 9459 | gotplt = htab->root.sgotplt; | |
| 9460 | relplt = htab->root.srelplt; | |
| 9461 | } | |
| 9462 | else | |
| 9463 | { | |
| 9464 | plt = htab->root.iplt; | |
| 9465 | gotplt = htab->root.igotplt; | |
| 9466 | relplt = htab->root.irelplt; | |
| 9467 | } | |
| 9468 | ||
| 9469 | /* Get the index in the procedure linkage table which | |
| 9470 | corresponds to this symbol. This is the index of this symbol | |
| 9471 | in all the symbols for which we are making plt entries. The | |
| 9472 | first entry in the procedure linkage table is reserved. | |
| a06ea964 | 9473 | |
| 1419bbe5 WN |
9474 | Get the offset into the .got table of the entry that |
| 9475 | corresponds to this function. Each .got entry is GOT_ENTRY_SIZE | |
| 9476 | bytes. The first three are reserved for the dynamic linker. | |
| 692e2b8b | 9477 | |
| 1419bbe5 WN |
9478 | For static executables, we don't reserve anything. */ |
| 9479 | ||
| 9480 | if (plt == htab->root.splt) | |
| 9481 | { | |
| 9482 | plt_index = (h->plt.offset - htab->plt_header_size) / htab->plt_entry_size; | |
| 9483 | got_offset = (plt_index + 3) * GOT_ENTRY_SIZE; | |
| 9484 | } | |
| 9485 | else | |
| 9486 | { | |
| 9487 | plt_index = h->plt.offset / htab->plt_entry_size; | |
| 9488 | got_offset = plt_index * GOT_ENTRY_SIZE; | |
| 9489 | } | |
| 9490 | ||
| 9491 | plt_entry = plt->contents + h->plt.offset; | |
| 9492 | plt_entry_address = plt->output_section->vma | |
| f44a1f8e | 9493 | + plt->output_offset + h->plt.offset; |
| 1419bbe5 WN |
9494 | gotplt_entry_address = gotplt->output_section->vma + |
| 9495 | gotplt->output_offset + got_offset; | |
| a06ea964 NC |
9496 | |
| 9497 | /* Copy in the boiler-plate for the PLTn entry. */ | |
| 37c18eed SD |
9498 | memcpy (plt_entry, htab->plt_entry, htab->plt_entry_size); |
| 9499 | ||
| 9500 | /* First instruction in BTI enabled PLT stub is a BTI | |
| 9501 | instruction so skip it. */ | |
| 9502 | if (elf_aarch64_tdata (output_bfd)->plt_type & PLT_BTI | |
| 9503 | && elf_elfheader (output_bfd)->e_type == ET_EXEC) | |
| 9504 | plt_entry = plt_entry + 4; | |
| a06ea964 NC |
9505 | |
| 9506 | /* Fill in the top 21 bits for this: ADRP x16, PLT_GOT + n * 8. | |
| 9507 | ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ | |
| caed7120 YZ |
9508 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADR_HI21_PCREL, |
| 9509 | plt_entry, | |
| 9510 | PG (gotplt_entry_address) - | |
| 9511 | PG (plt_entry_address)); | |
| a06ea964 NC |
9512 | |
| 9513 | /* Fill in the lo12 bits for the load from the pltgot. */ | |
| caed7120 YZ |
9514 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_LDSTNN_LO12, |
| 9515 | plt_entry + 4, | |
| 9516 | PG_OFFSET (gotplt_entry_address)); | |
| a06ea964 | 9517 | |
| 9aff4b7a | 9518 | /* Fill in the lo12 bits for the add from the pltgot entry. */ |
| caed7120 YZ |
9519 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADD_LO12, |
| 9520 | plt_entry + 8, | |
| 9521 | PG_OFFSET (gotplt_entry_address)); | |
| a06ea964 NC |
9522 | |
| 9523 | /* All the GOTPLT Entries are essentially initialized to PLT0. */ | |
| cec5225b | 9524 | bfd_put_NN (output_bfd, |
| 1419bbe5 WN |
9525 | plt->output_section->vma + plt->output_offset, |
| 9526 | gotplt->contents + got_offset); | |
| a06ea964 | 9527 | |
| a06ea964 | 9528 | rela.r_offset = gotplt_entry_address; |
| 1419bbe5 WN |
9529 | |
| 9530 | if (h->dynindx == -1 | |
| 0e1862bb | 9531 | || ((bfd_link_executable (info) |
| 1419bbe5 WN |
9532 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
| 9533 | && h->def_regular | |
| 9534 | && h->type == STT_GNU_IFUNC)) | |
| 9535 | { | |
| 9536 | /* If an STT_GNU_IFUNC symbol is locally defined, generate | |
| 9537 | R_AARCH64_IRELATIVE instead of R_AARCH64_JUMP_SLOT. */ | |
| 9538 | rela.r_info = ELFNN_R_INFO (0, AARCH64_R (IRELATIVE)); | |
| 9539 | rela.r_addend = (h->root.u.def.value | |
| 9540 | + h->root.u.def.section->output_section->vma | |
| 9541 | + h->root.u.def.section->output_offset); | |
| 9542 | } | |
| 9543 | else | |
| 9544 | { | |
| 9545 | /* Fill in the entry in the .rela.plt section. */ | |
| 9546 | rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (JUMP_SLOT)); | |
| 9547 | rela.r_addend = 0; | |
| 9548 | } | |
| a06ea964 NC |
9549 | |
| 9550 | /* Compute the relocation entry to used based on PLT index and do | |
| 9551 | not adjust reloc_count. The reloc_count has already been adjusted | |
| 9552 | to account for this entry. */ | |
| 1419bbe5 | 9553 | loc = relplt->contents + plt_index * RELOC_SIZE (htab); |
| cec5225b | 9554 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 NC |
9555 | } |
| 9556 | ||
| 9557 | /* Size sections even though they're not dynamic. We use it to setup | |
| 9558 | _TLS_MODULE_BASE_, if needed. */ | |
| 9559 | ||
| 0a1b45a2 | 9560 | static bool |
| cec5225b | 9561 | elfNN_aarch64_always_size_sections (bfd *output_bfd, |
| a06ea964 NC |
9562 | struct bfd_link_info *info) |
| 9563 | { | |
| 9564 | asection *tls_sec; | |
| 9565 | ||
| 0e1862bb | 9566 | if (bfd_link_relocatable (info)) |
| 0a1b45a2 | 9567 | return true; |
| a06ea964 NC |
9568 | |
| 9569 | tls_sec = elf_hash_table (info)->tls_sec; | |
| 9570 | ||
| 9571 | if (tls_sec) | |
| 9572 | { | |
| 9573 | struct elf_link_hash_entry *tlsbase; | |
| 9574 | ||
| 9575 | tlsbase = elf_link_hash_lookup (elf_hash_table (info), | |
| 0a1b45a2 | 9576 | "_TLS_MODULE_BASE_", true, true, false); |
| a06ea964 NC |
9577 | |
| 9578 | if (tlsbase) | |
| 9579 | { | |
| 9580 | struct bfd_link_hash_entry *h = NULL; | |
| 9581 | const struct elf_backend_data *bed = | |
| 9582 | get_elf_backend_data (output_bfd); | |
| 9583 | ||
| 9584 | if (!(_bfd_generic_link_add_one_symbol | |
| 9585 | (info, output_bfd, "_TLS_MODULE_BASE_", BSF_LOCAL, | |
| 0a1b45a2 AM |
9586 | tls_sec, 0, NULL, false, bed->collect, &h))) |
| 9587 | return false; | |
| a06ea964 NC |
9588 | |
| 9589 | tlsbase->type = STT_TLS; | |
| 9590 | tlsbase = (struct elf_link_hash_entry *) h; | |
| 9591 | tlsbase->def_regular = 1; | |
| 9592 | tlsbase->other = STV_HIDDEN; | |
| 0a1b45a2 | 9593 | (*bed->elf_backend_hide_symbol) (info, tlsbase, true); |
| a06ea964 NC |
9594 | } |
| 9595 | } | |
| 9596 | ||
| 0a1b45a2 | 9597 | return true; |
| a06ea964 NC |
9598 | } |
| 9599 | ||
| 9600 | /* Finish up dynamic symbol handling. We set the contents of various | |
| 9601 | dynamic sections here. */ | |
| 2d0ca824 | 9602 | |
| 0a1b45a2 | 9603 | static bool |
| cec5225b | 9604 | elfNN_aarch64_finish_dynamic_symbol (bfd *output_bfd, |
| a06ea964 NC |
9605 | struct bfd_link_info *info, |
| 9606 | struct elf_link_hash_entry *h, | |
| 9607 | Elf_Internal_Sym *sym) | |
| 9608 | { | |
| cec5225b YZ |
9609 | struct elf_aarch64_link_hash_table *htab; |
| 9610 | htab = elf_aarch64_hash_table (info); | |
| a06ea964 NC |
9611 | |
| 9612 | if (h->plt.offset != (bfd_vma) - 1) | |
| 9613 | { | |
| 1419bbe5 WN |
9614 | asection *plt, *gotplt, *relplt; |
| 9615 | ||
| a06ea964 | 9616 | /* This symbol has an entry in the procedure linkage table. Set |
| 07d6d2b8 | 9617 | it up. */ |
| a06ea964 | 9618 | |
| 1419bbe5 WN |
9619 | /* When building a static executable, use .iplt, .igot.plt and |
| 9620 | .rela.iplt sections for STT_GNU_IFUNC symbols. */ | |
| 9621 | if (htab->root.splt != NULL) | |
| 9622 | { | |
| 9623 | plt = htab->root.splt; | |
| 9624 | gotplt = htab->root.sgotplt; | |
| 9625 | relplt = htab->root.srelplt; | |
| 9626 | } | |
| 9627 | else | |
| 9628 | { | |
| 9629 | plt = htab->root.iplt; | |
| 9630 | gotplt = htab->root.igotplt; | |
| 9631 | relplt = htab->root.irelplt; | |
| 9632 | } | |
| 9633 | ||
| 9634 | /* This symbol has an entry in the procedure linkage table. Set | |
| 9635 | it up. */ | |
| 9636 | if ((h->dynindx == -1 | |
| 0e1862bb | 9637 | && !((h->forced_local || bfd_link_executable (info)) |
| 1419bbe5 WN |
9638 | && h->def_regular |
| 9639 | && h->type == STT_GNU_IFUNC)) | |
| 9640 | || plt == NULL | |
| 9641 | || gotplt == NULL | |
| 9642 | || relplt == NULL) | |
| 0a1b45a2 | 9643 | return false; |
| a06ea964 | 9644 | |
| 1419bbe5 | 9645 | elfNN_aarch64_create_small_pltn_entry (h, htab, output_bfd, info); |
| a06ea964 NC |
9646 | if (!h->def_regular) |
| 9647 | { | |
| 9648 | /* Mark the symbol as undefined, rather than as defined in | |
| 46b87d49 | 9649 | the .plt section. */ |
| a06ea964 | 9650 | sym->st_shndx = SHN_UNDEF; |
| 46b87d49 WN |
9651 | /* If the symbol is weak we need to clear the value. |
| 9652 | Otherwise, the PLT entry would provide a definition for | |
| 9653 | the symbol even if the symbol wasn't defined anywhere, | |
| 9654 | and so the symbol would never be NULL. Leave the value if | |
| 9655 | there were any relocations where pointer equality matters | |
| 9656 | (this is a clue for the dynamic linker, to make function | |
| 9657 | pointer comparisons work between an application and shared | |
| 9658 | library). */ | |
| 9659 | if (!h->ref_regular_nonweak || !h->pointer_equality_needed) | |
| 9660 | sym->st_value = 0; | |
| a06ea964 NC |
9661 | } |
| 9662 | } | |
| 9663 | ||
| 9664 | if (h->got.offset != (bfd_vma) - 1 | |
| a377ae2a SN |
9665 | && elf_aarch64_hash_entry (h)->got_type == GOT_NORMAL |
| 9666 | /* Undefined weak symbol in static PIE resolves to 0 without | |
| 9667 | any dynamic relocations. */ | |
| 9668 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
| a06ea964 NC |
9669 | { |
| 9670 | Elf_Internal_Rela rela; | |
| 9671 | bfd_byte *loc; | |
| 9672 | ||
| 9673 | /* This symbol has an entry in the global offset table. Set it | |
| 07d6d2b8 | 9674 | up. */ |
| a06ea964 NC |
9675 | if (htab->root.sgot == NULL || htab->root.srelgot == NULL) |
| 9676 | abort (); | |
| 9677 | ||
| 9678 | rela.r_offset = (htab->root.sgot->output_section->vma | |
| 9679 | + htab->root.sgot->output_offset | |
| 9680 | + (h->got.offset & ~(bfd_vma) 1)); | |
| 9681 | ||
| 49206388 WN |
9682 | if (h->def_regular |
| 9683 | && h->type == STT_GNU_IFUNC) | |
| 9684 | { | |
| 0e1862bb | 9685 | if (bfd_link_pic (info)) |
| 49206388 WN |
9686 | { |
| 9687 | /* Generate R_AARCH64_GLOB_DAT. */ | |
| 9688 | goto do_glob_dat; | |
| 9689 | } | |
| 9690 | else | |
| 9691 | { | |
| 9692 | asection *plt; | |
| 9693 | ||
| 9694 | if (!h->pointer_equality_needed) | |
| 9695 | abort (); | |
| 9696 | ||
| 9697 | /* For non-shared object, we can't use .got.plt, which | |
| 9698 | contains the real function address if we need pointer | |
| 9699 | equality. We load the GOT entry with the PLT entry. */ | |
| 9700 | plt = htab->root.splt ? htab->root.splt : htab->root.iplt; | |
| 9701 | bfd_put_NN (output_bfd, (plt->output_section->vma | |
| 9702 | + plt->output_offset | |
| 9703 | + h->plt.offset), | |
| 9704 | htab->root.sgot->contents | |
| 9705 | + (h->got.offset & ~(bfd_vma) 1)); | |
| 0a1b45a2 | 9706 | return true; |
| 49206388 WN |
9707 | } |
| 9708 | } | |
| 0e1862bb | 9709 | else if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h)) |
| a06ea964 | 9710 | { |
| 0ee3a6db | 9711 | if (!(h->def_regular || ELF_COMMON_DEF_P (h))) |
| 0a1b45a2 | 9712 | return false; |
| a06ea964 NC |
9713 | |
| 9714 | BFD_ASSERT ((h->got.offset & 1) != 0); | |
| a6bb11b2 | 9715 | rela.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE)); |
| a06ea964 NC |
9716 | rela.r_addend = (h->root.u.def.value |
| 9717 | + h->root.u.def.section->output_section->vma | |
| 9718 | + h->root.u.def.section->output_offset); | |
| 9719 | } | |
| 9720 | else | |
| 9721 | { | |
| dc1e8a47 | 9722 | do_glob_dat: |
| a06ea964 | 9723 | BFD_ASSERT ((h->got.offset & 1) == 0); |
| cec5225b | 9724 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| a06ea964 | 9725 | htab->root.sgot->contents + h->got.offset); |
| a6bb11b2 | 9726 | rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (GLOB_DAT)); |
| a06ea964 NC |
9727 | rela.r_addend = 0; |
| 9728 | } | |
| 9729 | ||
| 9730 | loc = htab->root.srelgot->contents; | |
| 9731 | loc += htab->root.srelgot->reloc_count++ * RELOC_SIZE (htab); | |
| cec5225b | 9732 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 NC |
9733 | } |
| 9734 | ||
| 9735 | if (h->needs_copy) | |
| 9736 | { | |
| 9737 | Elf_Internal_Rela rela; | |
| 5474d94f | 9738 | asection *s; |
| a06ea964 NC |
9739 | bfd_byte *loc; |
| 9740 | ||
| 9741 | /* This symbol needs a copy reloc. Set it up. */ | |
| a06ea964 NC |
9742 | if (h->dynindx == -1 |
| 9743 | || (h->root.type != bfd_link_hash_defined | |
| 9744 | && h->root.type != bfd_link_hash_defweak) | |
| 9d19e4fd | 9745 | || htab->root.srelbss == NULL) |
| a06ea964 NC |
9746 | abort (); |
| 9747 | ||
| 9748 | rela.r_offset = (h->root.u.def.value | |
| 9749 | + h->root.u.def.section->output_section->vma | |
| 9750 | + h->root.u.def.section->output_offset); | |
| a6bb11b2 | 9751 | rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (COPY)); |
| a06ea964 | 9752 | rela.r_addend = 0; |
| afbf7e8e | 9753 | if (h->root.u.def.section == htab->root.sdynrelro) |
| 5474d94f AM |
9754 | s = htab->root.sreldynrelro; |
| 9755 | else | |
| 9756 | s = htab->root.srelbss; | |
| 9757 | loc = s->contents + s->reloc_count++ * RELOC_SIZE (htab); | |
| cec5225b | 9758 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 NC |
9759 | } |
| 9760 | ||
| 9761 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. SYM may | |
| 9762 | be NULL for local symbols. */ | |
| 9763 | if (sym != NULL | |
| 9637f6ef | 9764 | && (h == elf_hash_table (info)->hdynamic |
| a06ea964 NC |
9765 | || h == elf_hash_table (info)->hgot)) |
| 9766 | sym->st_shndx = SHN_ABS; | |
| 9767 | ||
| 0a1b45a2 | 9768 | return true; |
| a06ea964 NC |
9769 | } |
| 9770 | ||
| 1419bbe5 WN |
9771 | /* Finish up local dynamic symbol handling. We set the contents of |
| 9772 | various dynamic sections here. */ | |
| 9773 | ||
| 1201fda6 | 9774 | static int |
| 1419bbe5 WN |
9775 | elfNN_aarch64_finish_local_dynamic_symbol (void **slot, void *inf) |
| 9776 | { | |
| 9777 | struct elf_link_hash_entry *h | |
| 9778 | = (struct elf_link_hash_entry *) *slot; | |
| 9779 | struct bfd_link_info *info | |
| 9780 | = (struct bfd_link_info *) inf; | |
| 9781 | ||
| 9782 | return elfNN_aarch64_finish_dynamic_symbol (info->output_bfd, | |
| 9783 | info, h, NULL); | |
| 9784 | } | |
| 9785 | ||
| a06ea964 | 9786 | static void |
| cec5225b YZ |
9787 | elfNN_aarch64_init_small_plt0_entry (bfd *output_bfd ATTRIBUTE_UNUSED, |
| 9788 | struct elf_aarch64_link_hash_table | |
| a06ea964 NC |
9789 | *htab) |
| 9790 | { | |
| 9791 | /* Fill in PLT0. Fixme:RR Note this doesn't distinguish between | |
| 9792 | small and large plts and at the minute just generates | |
| 9793 | the small PLT. */ | |
| 9794 | ||
| cec5225b | 9795 | /* PLT0 of the small PLT looks like this in ELF64 - |
| a06ea964 NC |
9796 | stp x16, x30, [sp, #-16]! // Save the reloc and lr on stack. |
| 9797 | adrp x16, PLT_GOT + 16 // Get the page base of the GOTPLT | |
| 9798 | ldr x17, [x16, #:lo12:PLT_GOT+16] // Load the address of the | |
| 9799 | // symbol resolver | |
| 9800 | add x16, x16, #:lo12:PLT_GOT+16 // Load the lo12 bits of the | |
| 9801 | // GOTPLT entry for this. | |
| 9802 | br x17 | |
| cec5225b | 9803 | PLT0 will be slightly different in ELF32 due to different got entry |
| 2d0ca824 | 9804 | size. */ |
| caed7120 | 9805 | bfd_vma plt_got_2nd_ent; /* Address of GOT[2]. */ |
| a06ea964 NC |
9806 | bfd_vma plt_base; |
| 9807 | ||
| 9808 | ||
| 37c18eed SD |
9809 | memcpy (htab->root.splt->contents, htab->plt0_entry, |
| 9810 | htab->plt_header_size); | |
| 4d3bb356 SN |
9811 | |
| 9812 | /* PR 26312: Explicitly set the sh_entsize to 0 so that | |
| 9813 | consumers do not think that the section contains fixed | |
| 9814 | sized objects. */ | |
| 9815 | elf_section_data (htab->root.splt->output_section)->this_hdr.sh_entsize = 0; | |
| a06ea964 | 9816 | |
| caed7120 YZ |
9817 | plt_got_2nd_ent = (htab->root.sgotplt->output_section->vma |
| 9818 | + htab->root.sgotplt->output_offset | |
| 9819 | + GOT_ENTRY_SIZE * 2); | |
| a06ea964 NC |
9820 | |
| 9821 | plt_base = htab->root.splt->output_section->vma + | |
| f44a1f8e | 9822 | htab->root.splt->output_offset; |
| a06ea964 | 9823 | |
| 37c18eed SD |
9824 | /* First instruction in BTI enabled PLT stub is a BTI |
| 9825 | instruction so skip it. */ | |
| 9826 | bfd_byte *plt0_entry = htab->root.splt->contents; | |
| 9827 | if (elf_aarch64_tdata (output_bfd)->plt_type & PLT_BTI) | |
| 9828 | plt0_entry = plt0_entry + 4; | |
| 9829 | ||
| a06ea964 NC |
9830 | /* Fill in the top 21 bits for this: ADRP x16, PLT_GOT + n * 8. |
| 9831 | ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ | |
| caed7120 | 9832 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADR_HI21_PCREL, |
| 37c18eed | 9833 | plt0_entry + 4, |
| caed7120 | 9834 | PG (plt_got_2nd_ent) - PG (plt_base + 4)); |
| a06ea964 | 9835 | |
| caed7120 | 9836 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_LDSTNN_LO12, |
| 37c18eed | 9837 | plt0_entry + 8, |
| caed7120 | 9838 | PG_OFFSET (plt_got_2nd_ent)); |
| a06ea964 | 9839 | |
| caed7120 | 9840 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADD_LO12, |
| 37c18eed | 9841 | plt0_entry + 12, |
| caed7120 | 9842 | PG_OFFSET (plt_got_2nd_ent)); |
| a06ea964 NC |
9843 | } |
| 9844 | ||
| 0a1b45a2 | 9845 | static bool |
| cec5225b | 9846 | elfNN_aarch64_finish_dynamic_sections (bfd *output_bfd, |
| a06ea964 NC |
9847 | struct bfd_link_info *info) |
| 9848 | { | |
| cec5225b | 9849 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 NC |
9850 | bfd *dynobj; |
| 9851 | asection *sdyn; | |
| 9852 | ||
| cec5225b | 9853 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
9854 | dynobj = htab->root.dynobj; |
| 9855 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); | |
| 9856 | ||
| 9857 | if (htab->root.dynamic_sections_created) | |
| 9858 | { | |
| cec5225b | 9859 | ElfNN_External_Dyn *dyncon, *dynconend; |
| a06ea964 NC |
9860 | |
| 9861 | if (sdyn == NULL || htab->root.sgot == NULL) | |
| 9862 | abort (); | |
| 9863 | ||
| cec5225b YZ |
9864 | dyncon = (ElfNN_External_Dyn *) sdyn->contents; |
| 9865 | dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size); | |
| a06ea964 NC |
9866 | for (; dyncon < dynconend; dyncon++) |
| 9867 | { | |
| 9868 | Elf_Internal_Dyn dyn; | |
| 9869 | asection *s; | |
| 9870 | ||
| cec5225b | 9871 | bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn); |
| a06ea964 NC |
9872 | |
| 9873 | switch (dyn.d_tag) | |
| 9874 | { | |
| 9875 | default: | |
| 9876 | continue; | |
| 9877 | ||
| 9878 | case DT_PLTGOT: | |
| 9879 | s = htab->root.sgotplt; | |
| 9880 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
| 9881 | break; | |
| 9882 | ||
| 9883 | case DT_JMPREL: | |
| 4ade44b7 AM |
9884 | s = htab->root.srelplt; |
| 9885 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
| a06ea964 NC |
9886 | break; |
| 9887 | ||
| 9888 | case DT_PLTRELSZ: | |
| c955de36 | 9889 | s = htab->root.srelplt; |
| a06ea964 NC |
9890 | dyn.d_un.d_val = s->size; |
| 9891 | break; | |
| 9892 | ||
| a06ea964 NC |
9893 | case DT_TLSDESC_PLT: |
| 9894 | s = htab->root.splt; | |
| 9895 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset | |
| 9bcc30e4 | 9896 | + htab->root.tlsdesc_plt; |
| a06ea964 NC |
9897 | break; |
| 9898 | ||
| 9899 | case DT_TLSDESC_GOT: | |
| 9900 | s = htab->root.sgot; | |
| 9bcc30e4 | 9901 | BFD_ASSERT (htab->root.tlsdesc_got != (bfd_vma)-1); |
| a06ea964 | 9902 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset |
| 9bcc30e4 | 9903 | + htab->root.tlsdesc_got; |
| a06ea964 NC |
9904 | break; |
| 9905 | } | |
| 9906 | ||
| cec5225b | 9907 | bfd_elfNN_swap_dyn_out (output_bfd, &dyn, dyncon); |
| a06ea964 NC |
9908 | } |
| 9909 | ||
| 9910 | } | |
| 9911 | ||
| 9912 | /* Fill in the special first entry in the procedure linkage table. */ | |
| 9913 | if (htab->root.splt && htab->root.splt->size > 0) | |
| 9914 | { | |
| cec5225b | 9915 | elfNN_aarch64_init_small_plt0_entry (output_bfd, htab); |
| a06ea964 | 9916 | |
| 9bcc30e4 | 9917 | if (htab->root.tlsdesc_plt && !(info->flags & DF_BIND_NOW)) |
| a06ea964 | 9918 | { |
| 9bcc30e4 | 9919 | BFD_ASSERT (htab->root.tlsdesc_got != (bfd_vma)-1); |
| cec5225b | 9920 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| 9bcc30e4 | 9921 | htab->root.sgot->contents + htab->root.tlsdesc_got); |
| a06ea964 | 9922 | |
| 37c18eed SD |
9923 | const bfd_byte *entry = elfNN_aarch64_tlsdesc_small_plt_entry; |
| 9924 | htab->tlsdesc_plt_entry_size = PLT_TLSDESC_ENTRY_SIZE; | |
| 9925 | ||
| 9926 | aarch64_plt_type type = elf_aarch64_tdata (output_bfd)->plt_type; | |
| 1dbade74 | 9927 | if (type == PLT_BTI || type == PLT_BTI_PAC) |
| 37c18eed SD |
9928 | { |
| 9929 | entry = elfNN_aarch64_tlsdesc_small_plt_bti_entry; | |
| 37c18eed SD |
9930 | } |
| 9931 | ||
| 9bcc30e4 | 9932 | memcpy (htab->root.splt->contents + htab->root.tlsdesc_plt, |
| 37c18eed | 9933 | entry, htab->tlsdesc_plt_entry_size); |
| a06ea964 NC |
9934 | |
| 9935 | { | |
| 9936 | bfd_vma adrp1_addr = | |
| 9937 | htab->root.splt->output_section->vma | |
| 9bcc30e4 L |
9938 | + htab->root.splt->output_offset |
| 9939 | + htab->root.tlsdesc_plt + 4; | |
| a06ea964 | 9940 | |
| caed7120 | 9941 | bfd_vma adrp2_addr = adrp1_addr + 4; |
| a06ea964 NC |
9942 | |
| 9943 | bfd_vma got_addr = | |
| 9944 | htab->root.sgot->output_section->vma | |
| 9945 | + htab->root.sgot->output_offset; | |
| 9946 | ||
| 9947 | bfd_vma pltgot_addr = | |
| 9948 | htab->root.sgotplt->output_section->vma | |
| 9949 | + htab->root.sgotplt->output_offset; | |
| 9950 | ||
| 9bcc30e4 | 9951 | bfd_vma dt_tlsdesc_got = got_addr + htab->root.tlsdesc_got; |
| caed7120 YZ |
9952 | |
| 9953 | bfd_byte *plt_entry = | |
| 9bcc30e4 | 9954 | htab->root.splt->contents + htab->root.tlsdesc_plt; |
| a06ea964 | 9955 | |
| 37c18eed SD |
9956 | /* First instruction in BTI enabled PLT stub is a BTI |
| 9957 | instruction so skip it. */ | |
| 9958 | if (type & PLT_BTI) | |
| 9959 | { | |
| 9960 | plt_entry = plt_entry + 4; | |
| 9961 | adrp1_addr = adrp1_addr + 4; | |
| 9962 | adrp2_addr = adrp2_addr + 4; | |
| 9963 | } | |
| 9964 | ||
| a06ea964 | 9965 | /* adrp x2, DT_TLSDESC_GOT */ |
| caed7120 YZ |
9966 | elf_aarch64_update_plt_entry (output_bfd, |
| 9967 | BFD_RELOC_AARCH64_ADR_HI21_PCREL, | |
| 9968 | plt_entry + 4, | |
| 9969 | (PG (dt_tlsdesc_got) | |
| 9970 | - PG (adrp1_addr))); | |
| a06ea964 NC |
9971 | |
| 9972 | /* adrp x3, 0 */ | |
| caed7120 YZ |
9973 | elf_aarch64_update_plt_entry (output_bfd, |
| 9974 | BFD_RELOC_AARCH64_ADR_HI21_PCREL, | |
| 9975 | plt_entry + 8, | |
| 9976 | (PG (pltgot_addr) | |
| 9977 | - PG (adrp2_addr))); | |
| a06ea964 NC |
9978 | |
| 9979 | /* ldr x2, [x2, #0] */ | |
| caed7120 YZ |
9980 | elf_aarch64_update_plt_entry (output_bfd, |
| 9981 | BFD_RELOC_AARCH64_LDSTNN_LO12, | |
| 9982 | plt_entry + 12, | |
| 9983 | PG_OFFSET (dt_tlsdesc_got)); | |
| a06ea964 NC |
9984 | |
| 9985 | /* add x3, x3, 0 */ | |
| caed7120 YZ |
9986 | elf_aarch64_update_plt_entry (output_bfd, |
| 9987 | BFD_RELOC_AARCH64_ADD_LO12, | |
| 9988 | plt_entry + 16, | |
| 9989 | PG_OFFSET (pltgot_addr)); | |
| a06ea964 NC |
9990 | } |
| 9991 | } | |
| 9992 | } | |
| 9993 | ||
| 9994 | if (htab->root.sgotplt) | |
| 9995 | { | |
| 9996 | if (bfd_is_abs_section (htab->root.sgotplt->output_section)) | |
| 9997 | { | |
| 4eca0228 | 9998 | _bfd_error_handler |
| 871b3ab2 | 9999 | (_("discarded output section: `%pA'"), htab->root.sgotplt); |
| 0a1b45a2 | 10000 | return false; |
| a06ea964 NC |
10001 | } |
| 10002 | ||
| 10003 | /* Fill in the first three entries in the global offset table. */ | |
| 10004 | if (htab->root.sgotplt->size > 0) | |
| 10005 | { | |
| 8db339a6 MS |
10006 | bfd_put_NN (output_bfd, (bfd_vma) 0, htab->root.sgotplt->contents); |
| 10007 | ||
| a06ea964 | 10008 | /* Write GOT[1] and GOT[2], needed for the dynamic linker. */ |
| cec5225b | 10009 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
10010 | (bfd_vma) 0, |
| 10011 | htab->root.sgotplt->contents + GOT_ENTRY_SIZE); | |
| cec5225b | 10012 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
10013 | (bfd_vma) 0, |
| 10014 | htab->root.sgotplt->contents + GOT_ENTRY_SIZE * 2); | |
| 10015 | } | |
| 10016 | ||
| 8db339a6 MS |
10017 | if (htab->root.sgot) |
| 10018 | { | |
| 10019 | if (htab->root.sgot->size > 0) | |
| 10020 | { | |
| 10021 | bfd_vma addr = | |
| 10022 | sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0; | |
| 10023 | bfd_put_NN (output_bfd, addr, htab->root.sgot->contents); | |
| 10024 | } | |
| 10025 | } | |
| 10026 | ||
| a06ea964 NC |
10027 | elf_section_data (htab->root.sgotplt->output_section)-> |
| 10028 | this_hdr.sh_entsize = GOT_ENTRY_SIZE; | |
| 10029 | } | |
| 10030 | ||
| 10031 | if (htab->root.sgot && htab->root.sgot->size > 0) | |
| 10032 | elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize | |
| 10033 | = GOT_ENTRY_SIZE; | |
| 10034 | ||
| 1419bbe5 WN |
10035 | /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */ |
| 10036 | htab_traverse (htab->loc_hash_table, | |
| 10037 | elfNN_aarch64_finish_local_dynamic_symbol, | |
| 10038 | info); | |
| 10039 | ||
| 0a1b45a2 | 10040 | return true; |
| a06ea964 NC |
10041 | } |
| 10042 | ||
| 37c18eed SD |
10043 | /* Check if BTI enabled PLTs are needed. Returns the type needed. */ |
| 10044 | static aarch64_plt_type | |
| 10045 | get_plt_type (bfd *abfd) | |
| 10046 | { | |
| 10047 | aarch64_plt_type ret = PLT_NORMAL; | |
| 10048 | bfd_byte *contents, *extdyn, *extdynend; | |
| 10049 | asection *sec = bfd_get_section_by_name (abfd, ".dynamic"); | |
| 8ef22662 | 10050 | if (!sec |
| 81ff113f | 10051 | || (sec->flags & SEC_HAS_CONTENTS) == 0 |
| 8ef22662 AM |
10052 | || sec->size < sizeof (ElfNN_External_Dyn) |
| 10053 | || !bfd_malloc_and_get_section (abfd, sec, &contents)) | |
| 37c18eed SD |
10054 | return ret; |
| 10055 | extdyn = contents; | |
| 8ef22662 AM |
10056 | extdynend = contents + sec->size - sizeof (ElfNN_External_Dyn); |
| 10057 | for (; extdyn <= extdynend; extdyn += sizeof (ElfNN_External_Dyn)) | |
| 37c18eed SD |
10058 | { |
| 10059 | Elf_Internal_Dyn dyn; | |
| 10060 | bfd_elfNN_swap_dyn_in (abfd, extdyn, &dyn); | |
| 10061 | ||
| 10062 | /* Let's check the processor specific dynamic array tags. */ | |
| 10063 | bfd_vma tag = dyn.d_tag; | |
| 10064 | if (tag < DT_LOPROC || tag > DT_HIPROC) | |
| 10065 | continue; | |
| 10066 | ||
| 10067 | switch (tag) | |
| 10068 | { | |
| 10069 | case DT_AARCH64_BTI_PLT: | |
| 1dbade74 SD |
10070 | ret |= PLT_BTI; |
| 10071 | break; | |
| 10072 | ||
| 10073 | case DT_AARCH64_PAC_PLT: | |
| 10074 | ret |= PLT_PAC; | |
| 37c18eed SD |
10075 | break; |
| 10076 | ||
| 10077 | default: break; | |
| 10078 | } | |
| 10079 | } | |
| 10080 | free (contents); | |
| 10081 | return ret; | |
| 10082 | } | |
| 10083 | ||
| 10084 | static long | |
| 10085 | elfNN_aarch64_get_synthetic_symtab (bfd *abfd, | |
| 10086 | long symcount, | |
| 10087 | asymbol **syms, | |
| 10088 | long dynsymcount, | |
| 10089 | asymbol **dynsyms, | |
| 10090 | asymbol **ret) | |
| 10091 | { | |
| 10092 | elf_aarch64_tdata (abfd)->plt_type = get_plt_type (abfd); | |
| 10093 | return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms, | |
| 10094 | dynsymcount, dynsyms, ret); | |
| 10095 | } | |
| 10096 | ||
| a06ea964 NC |
10097 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
| 10098 | or (bfd_vma) -1 if it should not be included. */ | |
| 10099 | ||
| 10100 | static bfd_vma | |
| cec5225b | 10101 | elfNN_aarch64_plt_sym_val (bfd_vma i, const asection *plt, |
| a06ea964 NC |
10102 | const arelent *rel ATTRIBUTE_UNUSED) |
| 10103 | { | |
| 37c18eed SD |
10104 | size_t plt0_size = PLT_ENTRY_SIZE; |
| 10105 | size_t pltn_size = PLT_SMALL_ENTRY_SIZE; | |
| 10106 | ||
| 1dbade74 SD |
10107 | if (elf_aarch64_tdata (plt->owner)->plt_type == PLT_BTI_PAC) |
| 10108 | { | |
| 1dbade74 SD |
10109 | if (elf_elfheader (plt->owner)->e_type == ET_EXEC) |
| 10110 | pltn_size = PLT_BTI_PAC_SMALL_ENTRY_SIZE; | |
| 10111 | else | |
| 10112 | pltn_size = PLT_PAC_SMALL_ENTRY_SIZE; | |
| 10113 | } | |
| 10114 | else if (elf_aarch64_tdata (plt->owner)->plt_type == PLT_BTI) | |
| 37c18eed | 10115 | { |
| 37c18eed SD |
10116 | if (elf_elfheader (plt->owner)->e_type == ET_EXEC) |
| 10117 | pltn_size = PLT_BTI_SMALL_ENTRY_SIZE; | |
| 10118 | } | |
| 1dbade74 SD |
10119 | else if (elf_aarch64_tdata (plt->owner)->plt_type == PLT_PAC) |
| 10120 | { | |
| 1dbade74 SD |
10121 | pltn_size = PLT_PAC_SMALL_ENTRY_SIZE; |
| 10122 | } | |
| 10123 | ||
| 37c18eed | 10124 | return plt->vma + plt0_size + i * pltn_size; |
| a06ea964 NC |
10125 | } |
| 10126 | ||
| d691934d NC |
10127 | /* Returns TRUE if NAME is an AArch64 mapping symbol. |
| 10128 | The ARM ELF standard defines $x (for A64 code) and $d (for data). | |
| 10129 | It also allows a period initiated suffix to be added to the symbol, ie: | |
| 10130 | "$[adtx]\.[:sym_char]+". */ | |
| 10131 | ||
| 0a1b45a2 | 10132 | static bool |
| d691934d NC |
10133 | is_aarch64_mapping_symbol (const char * name) |
| 10134 | { | |
| 10135 | return name != NULL /* Paranoia. */ | |
| 10136 | && name[0] == '$' /* Note: if objcopy --prefix-symbols has been used then | |
| 10137 | the mapping symbols could have acquired a prefix. | |
| 10138 | We do not support this here, since such symbols no | |
| 10139 | longer conform to the ARM ELF ABI. */ | |
| 10140 | && (name[1] == 'd' || name[1] == 'x') | |
| 10141 | && (name[2] == 0 || name[2] == '.'); | |
| 10142 | /* FIXME: Strictly speaking the symbol is only a valid mapping symbol if | |
| 10143 | any characters that follow the period are legal characters for the body | |
| 10144 | of a symbol's name. For now we just assume that this is the case. */ | |
| 10145 | } | |
| 10146 | ||
| 10147 | /* Make sure that mapping symbols in object files are not removed via the | |
| 10148 | "strip --strip-unneeded" tool. These symbols might needed in order to | |
| 10149 | correctly generate linked files. Once an object file has been linked, | |
| 10150 | it should be safe to remove them. */ | |
| 10151 | ||
| 10152 | static void | |
| 10153 | elfNN_aarch64_backend_symbol_processing (bfd *abfd, asymbol *sym) | |
| 10154 | { | |
| 10155 | if (((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
| 10156 | && sym->section != bfd_abs_section_ptr | |
| 10157 | && is_aarch64_mapping_symbol (sym->name)) | |
| 10158 | sym->flags |= BSF_KEEP; | |
| 10159 | } | |
| 10160 | ||
| cd702818 SD |
10161 | /* Implement elf_backend_setup_gnu_properties for AArch64. It serves as a |
| 10162 | wrapper function for _bfd_aarch64_elf_link_setup_gnu_properties to account | |
| 10163 | for the effect of GNU properties of the output_bfd. */ | |
| 10164 | static bfd * | |
| 10165 | elfNN_aarch64_link_setup_gnu_properties (struct bfd_link_info *info) | |
| 10166 | { | |
| 10167 | uint32_t prop = elf_aarch64_tdata (info->output_bfd)->gnu_and_prop; | |
| 10168 | bfd *pbfd = _bfd_aarch64_elf_link_setup_gnu_properties (info, &prop); | |
| 10169 | elf_aarch64_tdata (info->output_bfd)->gnu_and_prop = prop; | |
| 37c18eed SD |
10170 | elf_aarch64_tdata (info->output_bfd)->plt_type |
| 10171 | |= (prop & GNU_PROPERTY_AARCH64_FEATURE_1_BTI) ? PLT_BTI : 0; | |
| 10172 | setup_plt_values (info, elf_aarch64_tdata (info->output_bfd)->plt_type); | |
| cd702818 SD |
10173 | return pbfd; |
| 10174 | } | |
| 10175 | ||
| 10176 | /* Implement elf_backend_merge_gnu_properties for AArch64. It serves as a | |
| 10177 | wrapper function for _bfd_aarch64_elf_merge_gnu_properties to account | |
| 10178 | for the effect of GNU properties of the output_bfd. */ | |
| 0a1b45a2 | 10179 | static bool |
| cd702818 | 10180 | elfNN_aarch64_merge_gnu_properties (struct bfd_link_info *info, |
| 4e539114 | 10181 | bfd *abfd, bfd *bbfd, |
| cd702818 SD |
10182 | elf_property *aprop, |
| 10183 | elf_property *bprop) | |
| 10184 | { | |
| 10185 | uint32_t prop | |
| 10186 | = elf_aarch64_tdata (info->output_bfd)->gnu_and_prop; | |
| 37c18eed SD |
10187 | |
| 10188 | /* If output has been marked with BTI using command line argument, give out | |
| 10189 | warning if necessary. */ | |
| 4e539114 SD |
10190 | /* Properties are merged per type, hence only check for warnings when merging |
| 10191 | GNU_PROPERTY_AARCH64_FEATURE_1_AND. */ | |
| 10192 | if (((aprop && aprop->pr_type == GNU_PROPERTY_AARCH64_FEATURE_1_AND) | |
| 10193 | || (bprop && bprop->pr_type == GNU_PROPERTY_AARCH64_FEATURE_1_AND)) | |
| 10194 | && (prop & GNU_PROPERTY_AARCH64_FEATURE_1_BTI) | |
| 37c18eed SD |
10195 | && (!elf_aarch64_tdata (info->output_bfd)->no_bti_warn)) |
| 10196 | { | |
| 10197 | if ((aprop && !(aprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_BTI)) | |
| 4e539114 | 10198 | || !aprop) |
| 37c18eed | 10199 | { |
| 8bf6d176 | 10200 | _bfd_error_handler (_("%pB: warning: BTI turned on by -z force-bti when " |
| 4e539114 SD |
10201 | "all inputs do not have BTI in NOTE section."), |
| 10202 | abfd); | |
| 10203 | } | |
| 10204 | if ((bprop && !(bprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_BTI)) | |
| 10205 | || !bprop) | |
| 10206 | { | |
| 8bf6d176 | 10207 | _bfd_error_handler (_("%pB: warning: BTI turned on by -z force-bti when " |
| 4e539114 SD |
10208 | "all inputs do not have BTI in NOTE section."), |
| 10209 | bbfd); | |
| 37c18eed SD |
10210 | } |
| 10211 | } | |
| 10212 | ||
| cd702818 SD |
10213 | return _bfd_aarch64_elf_merge_gnu_properties (info, abfd, aprop, |
| 10214 | bprop, prop); | |
| 10215 | } | |
| a06ea964 NC |
10216 | |
| 10217 | /* We use this so we can override certain functions | |
| 10218 | (though currently we don't). */ | |
| 10219 | ||
| cec5225b | 10220 | const struct elf_size_info elfNN_aarch64_size_info = |
| a06ea964 | 10221 | { |
| cec5225b YZ |
10222 | sizeof (ElfNN_External_Ehdr), |
| 10223 | sizeof (ElfNN_External_Phdr), | |
| 10224 | sizeof (ElfNN_External_Shdr), | |
| 10225 | sizeof (ElfNN_External_Rel), | |
| 10226 | sizeof (ElfNN_External_Rela), | |
| 10227 | sizeof (ElfNN_External_Sym), | |
| 10228 | sizeof (ElfNN_External_Dyn), | |
| a06ea964 NC |
10229 | sizeof (Elf_External_Note), |
| 10230 | 4, /* Hash table entry size. */ | |
| 10231 | 1, /* Internal relocs per external relocs. */ | |
| cec5225b YZ |
10232 | ARCH_SIZE, /* Arch size. */ |
| 10233 | LOG_FILE_ALIGN, /* Log_file_align. */ | |
| 10234 | ELFCLASSNN, EV_CURRENT, | |
| 10235 | bfd_elfNN_write_out_phdrs, | |
| 10236 | bfd_elfNN_write_shdrs_and_ehdr, | |
| 10237 | bfd_elfNN_checksum_contents, | |
| 10238 | bfd_elfNN_write_relocs, | |
| 10239 | bfd_elfNN_swap_symbol_in, | |
| 10240 | bfd_elfNN_swap_symbol_out, | |
| 10241 | bfd_elfNN_slurp_reloc_table, | |
| 10242 | bfd_elfNN_slurp_symbol_table, | |
| 10243 | bfd_elfNN_swap_dyn_in, | |
| 10244 | bfd_elfNN_swap_dyn_out, | |
| 10245 | bfd_elfNN_swap_reloc_in, | |
| 10246 | bfd_elfNN_swap_reloc_out, | |
| 10247 | bfd_elfNN_swap_reloca_in, | |
| 10248 | bfd_elfNN_swap_reloca_out | |
| a06ea964 NC |
10249 | }; |
| 10250 | ||
| 10251 | #define ELF_ARCH bfd_arch_aarch64 | |
| 10252 | #define ELF_MACHINE_CODE EM_AARCH64 | |
| 10253 | #define ELF_MAXPAGESIZE 0x10000 | |
| a06ea964 NC |
10254 | #define ELF_COMMONPAGESIZE 0x1000 |
| 10255 | ||
| 07d6d2b8 | 10256 | #define bfd_elfNN_bfd_free_cached_info \ |
| cec5225b | 10257 | elfNN_aarch64_bfd_free_cached_info |
| a06ea964 | 10258 | |
| cec5225b YZ |
10259 | #define bfd_elfNN_bfd_is_target_special_symbol \ |
| 10260 | elfNN_aarch64_is_target_special_symbol | |
| a06ea964 | 10261 | |
| 07d6d2b8 | 10262 | #define bfd_elfNN_bfd_link_hash_table_create \ |
| cec5225b | 10263 | elfNN_aarch64_link_hash_table_create |
| a06ea964 | 10264 | |
| cec5225b YZ |
10265 | #define bfd_elfNN_bfd_merge_private_bfd_data \ |
| 10266 | elfNN_aarch64_merge_private_bfd_data | |
| a06ea964 | 10267 | |
| cec5225b YZ |
10268 | #define bfd_elfNN_bfd_print_private_bfd_data \ |
| 10269 | elfNN_aarch64_print_private_bfd_data | |
| a06ea964 | 10270 | |
| cec5225b YZ |
10271 | #define bfd_elfNN_bfd_reloc_type_lookup \ |
| 10272 | elfNN_aarch64_reloc_type_lookup | |
| a06ea964 | 10273 | |
| cec5225b YZ |
10274 | #define bfd_elfNN_bfd_reloc_name_lookup \ |
| 10275 | elfNN_aarch64_reloc_name_lookup | |
| a06ea964 | 10276 | |
| cec5225b YZ |
10277 | #define bfd_elfNN_bfd_set_private_flags \ |
| 10278 | elfNN_aarch64_set_private_flags | |
| a06ea964 | 10279 | |
| cec5225b YZ |
10280 | #define bfd_elfNN_find_inliner_info \ |
| 10281 | elfNN_aarch64_find_inliner_info | |
| a06ea964 | 10282 | |
| 37c18eed SD |
10283 | #define bfd_elfNN_get_synthetic_symtab \ |
| 10284 | elfNN_aarch64_get_synthetic_symtab | |
| 10285 | ||
| cec5225b YZ |
10286 | #define bfd_elfNN_mkobject \ |
| 10287 | elfNN_aarch64_mkobject | |
| a06ea964 | 10288 | |
| cec5225b YZ |
10289 | #define bfd_elfNN_new_section_hook \ |
| 10290 | elfNN_aarch64_new_section_hook | |
| a06ea964 NC |
10291 | |
| 10292 | #define elf_backend_adjust_dynamic_symbol \ | |
| cec5225b | 10293 | elfNN_aarch64_adjust_dynamic_symbol |
| a06ea964 NC |
10294 | |
| 10295 | #define elf_backend_always_size_sections \ | |
| cec5225b | 10296 | elfNN_aarch64_always_size_sections |
| a06ea964 NC |
10297 | |
| 10298 | #define elf_backend_check_relocs \ | |
| cec5225b | 10299 | elfNN_aarch64_check_relocs |
| a06ea964 NC |
10300 | |
| 10301 | #define elf_backend_copy_indirect_symbol \ | |
| cec5225b | 10302 | elfNN_aarch64_copy_indirect_symbol |
| a06ea964 | 10303 | |
| 823710d5 SN |
10304 | #define elf_backend_merge_symbol_attribute \ |
| 10305 | elfNN_aarch64_merge_symbol_attribute | |
| 10306 | ||
| a06ea964 NC |
10307 | /* Create .dynbss, and .rela.bss sections in DYNOBJ, and set up shortcuts |
| 10308 | to them in our hash. */ | |
| 10309 | #define elf_backend_create_dynamic_sections \ | |
| cec5225b | 10310 | elfNN_aarch64_create_dynamic_sections |
| a06ea964 NC |
10311 | |
| 10312 | #define elf_backend_init_index_section \ | |
| 10313 | _bfd_elf_init_2_index_sections | |
| 10314 | ||
| a06ea964 | 10315 | #define elf_backend_finish_dynamic_sections \ |
| cec5225b | 10316 | elfNN_aarch64_finish_dynamic_sections |
| a06ea964 NC |
10317 | |
| 10318 | #define elf_backend_finish_dynamic_symbol \ | |
| cec5225b | 10319 | elfNN_aarch64_finish_dynamic_symbol |
| a06ea964 | 10320 | |
| a06ea964 | 10321 | #define elf_backend_object_p \ |
| cec5225b | 10322 | elfNN_aarch64_object_p |
| a06ea964 | 10323 | |
| 07d6d2b8 | 10324 | #define elf_backend_output_arch_local_syms \ |
| cec5225b | 10325 | elfNN_aarch64_output_arch_local_syms |
| a06ea964 | 10326 | |
| e7679060 AM |
10327 | #define elf_backend_maybe_function_sym \ |
| 10328 | elfNN_aarch64_maybe_function_sym | |
| 10329 | ||
| a06ea964 | 10330 | #define elf_backend_plt_sym_val \ |
| cec5225b | 10331 | elfNN_aarch64_plt_sym_val |
| a06ea964 | 10332 | |
| ed7e9d0b AM |
10333 | #define elf_backend_init_file_header \ |
| 10334 | elfNN_aarch64_init_file_header | |
| a06ea964 NC |
10335 | |
| 10336 | #define elf_backend_relocate_section \ | |
| cec5225b | 10337 | elfNN_aarch64_relocate_section |
| a06ea964 NC |
10338 | |
| 10339 | #define elf_backend_reloc_type_class \ | |
| cec5225b | 10340 | elfNN_aarch64_reloc_type_class |
| a06ea964 | 10341 | |
| a06ea964 | 10342 | #define elf_backend_section_from_shdr \ |
| cec5225b | 10343 | elfNN_aarch64_section_from_shdr |
| a06ea964 | 10344 | |
| d0ff5ca9 LM |
10345 | #define elf_backend_section_from_phdr \ |
| 10346 | elfNN_aarch64_section_from_phdr | |
| 10347 | ||
| 10348 | #define elf_backend_modify_headers \ | |
| 10349 | elfNN_aarch64_modify_headers | |
| 10350 | ||
| a06ea964 | 10351 | #define elf_backend_size_dynamic_sections \ |
| cec5225b | 10352 | elfNN_aarch64_size_dynamic_sections |
| a06ea964 NC |
10353 | |
| 10354 | #define elf_backend_size_info \ | |
| cec5225b | 10355 | elfNN_aarch64_size_info |
| a06ea964 | 10356 | |
| 68fcca92 JW |
10357 | #define elf_backend_write_section \ |
| 10358 | elfNN_aarch64_write_section | |
| 10359 | ||
| d691934d NC |
10360 | #define elf_backend_symbol_processing \ |
| 10361 | elfNN_aarch64_backend_symbol_processing | |
| 10362 | ||
| cd702818 SD |
10363 | #define elf_backend_setup_gnu_properties \ |
| 10364 | elfNN_aarch64_link_setup_gnu_properties | |
| 10365 | ||
| 10366 | #define elf_backend_merge_gnu_properties \ | |
| 10367 | elfNN_aarch64_merge_gnu_properties | |
| 10368 | ||
| a06ea964 | 10369 | #define elf_backend_can_refcount 1 |
| 59c108f7 | 10370 | #define elf_backend_can_gc_sections 1 |
| a06ea964 NC |
10371 | #define elf_backend_plt_readonly 1 |
| 10372 | #define elf_backend_want_got_plt 1 | |
| 10373 | #define elf_backend_want_plt_sym 0 | |
| 5474d94f | 10374 | #define elf_backend_want_dynrelro 1 |
| a06ea964 NC |
10375 | #define elf_backend_may_use_rel_p 0 |
| 10376 | #define elf_backend_may_use_rela_p 1 | |
| 10377 | #define elf_backend_default_use_rela_p 1 | |
| 07d6d2b8 | 10378 | #define elf_backend_rela_normal 1 |
| 64f52338 | 10379 | #define elf_backend_dtrel_excludes_plt 1 |
| a06ea964 | 10380 | #define elf_backend_got_header_size (GOT_ENTRY_SIZE * 3) |
| c495064d | 10381 | #define elf_backend_default_execstack 0 |
| 4fb55bf6 | 10382 | #define elf_backend_extern_protected_data 0 |
| 7f784814 | 10383 | #define elf_backend_hash_symbol elf_aarch64_hash_symbol |
| a06ea964 | 10384 | |
| 07d6d2b8 | 10385 | #undef elf_backend_obj_attrs_section |
| a06ea964 NC |
10386 | #define elf_backend_obj_attrs_section ".ARM.attributes" |
| 10387 | ||
| cec5225b | 10388 | #include "elfNN-target.h" |
| a75cf613 ES |
10389 | |
| 10390 | /* CloudABI support. */ | |
| 10391 | ||
| 10392 | #undef TARGET_LITTLE_SYM | |
| 10393 | #define TARGET_LITTLE_SYM aarch64_elfNN_le_cloudabi_vec | |
| 10394 | #undef TARGET_LITTLE_NAME | |
| 10395 | #define TARGET_LITTLE_NAME "elfNN-littleaarch64-cloudabi" | |
| 10396 | #undef TARGET_BIG_SYM | |
| 10397 | #define TARGET_BIG_SYM aarch64_elfNN_be_cloudabi_vec | |
| 10398 | #undef TARGET_BIG_NAME | |
| 10399 | #define TARGET_BIG_NAME "elfNN-bigaarch64-cloudabi" | |
| 10400 | ||
| 10401 | #undef ELF_OSABI | |
| 10402 | #define ELF_OSABI ELFOSABI_CLOUDABI | |
| 10403 | ||
| 10404 | #undef elfNN_bed | |
| 10405 | #define elfNN_bed elfNN_aarch64_cloudabi_bed | |
| 10406 | ||
| 10407 | #include "elfNN-target.h" |