projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| cec5225b | 1 | /* AArch64-specific support for NN-bit ELF. |
| b3adc24a | 2 | Copyright (C) 2009-2020 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 */ |
| 6346d5ca | 445 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| a6bb11b2 | 446 | 0, /* bitsize */ |
| a06ea964 NC |
447 | FALSE, /* pc_relative */ |
| 448 | 0, /* bitpos */ | |
| 449 | complain_overflow_dont, /* complain_on_overflow */ | |
| 450 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 451 | "R_AARCH64_NULL", /* name */ |
| a06ea964 NC |
452 | FALSE, /* partial_inplace */ |
| 453 | 0, /* src_mask */ | |
| a6bb11b2 | 454 | 0, /* dst_mask */ |
| a06ea964 | 455 | FALSE), /* pcrel_offset */ |
| a6bb11b2 | 456 | HOWTO (R_AARCH64_NONE, /* type */ |
| a06ea964 | 457 | 0, /* rightshift */ |
| 6346d5ca | 458 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| a06ea964 NC |
459 | 0, /* bitsize */ |
| 460 | FALSE, /* pc_relative */ | |
| 461 | 0, /* bitpos */ | |
| 462 | complain_overflow_dont, /* complain_on_overflow */ | |
| 463 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 464 | "R_AARCH64_NONE", /* name */ |
| a06ea964 NC |
465 | FALSE, /* partial_inplace */ |
| 466 | 0, /* src_mask */ | |
| 467 | 0, /* dst_mask */ | |
| 468 | FALSE), /* pcrel_offset */ | |
| 469 | ||
| 470 | /* .xword: (S+A) */ | |
| a6bb11b2 | 471 | HOWTO64 (AARCH64_R (ABS64), /* type */ |
| a06ea964 NC |
472 | 0, /* rightshift */ |
| 473 | 4, /* size (4 = long long) */ | |
| 474 | 64, /* bitsize */ | |
| 475 | FALSE, /* pc_relative */ | |
| 476 | 0, /* bitpos */ | |
| 477 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 478 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 479 | AARCH64_R_STR (ABS64), /* name */ |
| a06ea964 NC |
480 | FALSE, /* partial_inplace */ |
| 481 | ALL_ONES, /* src_mask */ | |
| 482 | ALL_ONES, /* dst_mask */ | |
| 483 | FALSE), /* pcrel_offset */ | |
| 484 | ||
| 485 | /* .word: (S+A) */ | |
| a6bb11b2 | 486 | HOWTO (AARCH64_R (ABS32), /* type */ |
| a06ea964 NC |
487 | 0, /* rightshift */ |
| 488 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 489 | 32, /* bitsize */ | |
| 490 | FALSE, /* pc_relative */ | |
| 491 | 0, /* bitpos */ | |
| 492 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 493 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 494 | AARCH64_R_STR (ABS32), /* name */ |
| a06ea964 NC |
495 | FALSE, /* partial_inplace */ |
| 496 | 0xffffffff, /* src_mask */ | |
| 497 | 0xffffffff, /* dst_mask */ | |
| 498 | FALSE), /* pcrel_offset */ | |
| 499 | ||
| 500 | /* .half: (S+A) */ | |
| a6bb11b2 | 501 | HOWTO (AARCH64_R (ABS16), /* type */ |
| a06ea964 NC |
502 | 0, /* rightshift */ |
| 503 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 504 | 16, /* bitsize */ | |
| 505 | FALSE, /* pc_relative */ | |
| 506 | 0, /* bitpos */ | |
| 507 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 508 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 509 | AARCH64_R_STR (ABS16), /* name */ |
| a06ea964 NC |
510 | FALSE, /* partial_inplace */ |
| 511 | 0xffff, /* src_mask */ | |
| 512 | 0xffff, /* dst_mask */ | |
| 513 | FALSE), /* pcrel_offset */ | |
| 514 | ||
| 515 | /* .xword: (S+A-P) */ | |
| a6bb11b2 | 516 | HOWTO64 (AARCH64_R (PREL64), /* type */ |
| a06ea964 NC |
517 | 0, /* rightshift */ |
| 518 | 4, /* size (4 = long long) */ | |
| 519 | 64, /* bitsize */ | |
| 520 | TRUE, /* pc_relative */ | |
| 521 | 0, /* bitpos */ | |
| 522 | complain_overflow_signed, /* complain_on_overflow */ | |
| 523 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 524 | AARCH64_R_STR (PREL64), /* name */ |
| a06ea964 NC |
525 | FALSE, /* partial_inplace */ |
| 526 | ALL_ONES, /* src_mask */ | |
| 527 | ALL_ONES, /* dst_mask */ | |
| 528 | TRUE), /* pcrel_offset */ | |
| 529 | ||
| 530 | /* .word: (S+A-P) */ | |
| a6bb11b2 | 531 | HOWTO (AARCH64_R (PREL32), /* type */ |
| a06ea964 NC |
532 | 0, /* rightshift */ |
| 533 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 534 | 32, /* bitsize */ | |
| 535 | TRUE, /* pc_relative */ | |
| 536 | 0, /* bitpos */ | |
| 537 | complain_overflow_signed, /* complain_on_overflow */ | |
| 538 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 539 | AARCH64_R_STR (PREL32), /* name */ |
| a06ea964 NC |
540 | FALSE, /* partial_inplace */ |
| 541 | 0xffffffff, /* src_mask */ | |
| 542 | 0xffffffff, /* dst_mask */ | |
| 543 | TRUE), /* pcrel_offset */ | |
| 544 | ||
| 545 | /* .half: (S+A-P) */ | |
| a6bb11b2 | 546 | HOWTO (AARCH64_R (PREL16), /* type */ |
| a06ea964 NC |
547 | 0, /* rightshift */ |
| 548 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 549 | 16, /* bitsize */ | |
| 550 | TRUE, /* pc_relative */ | |
| 551 | 0, /* bitpos */ | |
| 552 | complain_overflow_signed, /* complain_on_overflow */ | |
| 553 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 554 | AARCH64_R_STR (PREL16), /* name */ |
| a06ea964 NC |
555 | FALSE, /* partial_inplace */ |
| 556 | 0xffff, /* src_mask */ | |
| 557 | 0xffff, /* dst_mask */ | |
| 558 | TRUE), /* pcrel_offset */ | |
| 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 NC |
565 | 0, /* rightshift */ |
| 566 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 567 | 16, /* bitsize */ | |
| 568 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
573 | FALSE, /* partial_inplace */ |
| 574 | 0xffff, /* src_mask */ | |
| 575 | 0xffff, /* dst_mask */ | |
| 576 | FALSE), /* pcrel_offset */ | |
| 577 | ||
| 578 | /* MOVK: ((S+A) >> 0) & 0xffff [no overflow check] */ | |
| a6bb11b2 | 579 | HOWTO (AARCH64_R (MOVW_UABS_G0_NC), /* type */ |
| a06ea964 NC |
580 | 0, /* rightshift */ |
| 581 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 582 | 16, /* bitsize */ | |
| 583 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
588 | FALSE, /* partial_inplace */ |
| 589 | 0xffff, /* src_mask */ | |
| 590 | 0xffff, /* dst_mask */ | |
| 591 | FALSE), /* pcrel_offset */ | |
| 592 | ||
| 593 | /* MOVZ: ((S+A) >> 16) & 0xffff */ | |
| a6bb11b2 | 594 | HOWTO (AARCH64_R (MOVW_UABS_G1), /* type */ |
| a06ea964 NC |
595 | 16, /* rightshift */ |
| 596 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 597 | 16, /* bitsize */ | |
| 598 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
603 | FALSE, /* partial_inplace */ |
| 604 | 0xffff, /* src_mask */ | |
| 605 | 0xffff, /* dst_mask */ | |
| 606 | FALSE), /* pcrel_offset */ | |
| 607 | ||
| 608 | /* MOVK: ((S+A) >> 16) & 0xffff [no overflow check] */ | |
| a6bb11b2 | 609 | HOWTO64 (AARCH64_R (MOVW_UABS_G1_NC), /* type */ |
| a06ea964 NC |
610 | 16, /* rightshift */ |
| 611 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 612 | 16, /* bitsize */ | |
| 613 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
618 | FALSE, /* partial_inplace */ |
| 619 | 0xffff, /* src_mask */ | |
| 620 | 0xffff, /* dst_mask */ | |
| 621 | FALSE), /* pcrel_offset */ | |
| 622 | ||
| 623 | /* MOVZ: ((S+A) >> 32) & 0xffff */ | |
| a6bb11b2 | 624 | HOWTO64 (AARCH64_R (MOVW_UABS_G2), /* type */ |
| a06ea964 NC |
625 | 32, /* rightshift */ |
| 626 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 627 | 16, /* bitsize */ | |
| 628 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
633 | FALSE, /* partial_inplace */ |
| 634 | 0xffff, /* src_mask */ | |
| 635 | 0xffff, /* dst_mask */ | |
| 636 | FALSE), /* pcrel_offset */ | |
| 637 | ||
| 638 | /* MOVK: ((S+A) >> 32) & 0xffff [no overflow check] */ | |
| a6bb11b2 | 639 | HOWTO64 (AARCH64_R (MOVW_UABS_G2_NC), /* type */ |
| a06ea964 NC |
640 | 32, /* rightshift */ |
| 641 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 642 | 16, /* bitsize */ | |
| 643 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
648 | FALSE, /* partial_inplace */ |
| 649 | 0xffff, /* src_mask */ | |
| 650 | 0xffff, /* dst_mask */ | |
| 651 | FALSE), /* pcrel_offset */ | |
| 652 | ||
| 653 | /* MOVZ: ((S+A) >> 48) & 0xffff */ | |
| a6bb11b2 | 654 | HOWTO64 (AARCH64_R (MOVW_UABS_G3), /* type */ |
| a06ea964 NC |
655 | 48, /* rightshift */ |
| 656 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 657 | 16, /* bitsize */ | |
| 658 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
663 | FALSE, /* partial_inplace */ |
| 664 | 0xffff, /* src_mask */ | |
| 665 | 0xffff, /* dst_mask */ | |
| 666 | FALSE), /* pcrel_offset */ | |
| 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 NC |
674 | 0, /* rightshift */ |
| 675 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| c5e3a364 | 676 | 17, /* bitsize */ |
| a06ea964 NC |
677 | FALSE, /* pc_relative */ |
| 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 */ |
| a06ea964 NC |
682 | FALSE, /* partial_inplace */ |
| 683 | 0xffff, /* src_mask */ | |
| 684 | 0xffff, /* dst_mask */ | |
| 685 | FALSE), /* pcrel_offset */ | |
| 686 | ||
| 687 | /* MOV[ZN]: ((S+A) >> 16) & 0xffff */ | |
| a6bb11b2 | 688 | HOWTO64 (AARCH64_R (MOVW_SABS_G1), /* type */ |
| a06ea964 NC |
689 | 16, /* rightshift */ |
| 690 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| c5e3a364 | 691 | 17, /* bitsize */ |
| a06ea964 NC |
692 | FALSE, /* pc_relative */ |
| 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 */ |
| a06ea964 NC |
697 | FALSE, /* partial_inplace */ |
| 698 | 0xffff, /* src_mask */ | |
| 699 | 0xffff, /* dst_mask */ | |
| 700 | FALSE), /* pcrel_offset */ | |
| 701 | ||
| 702 | /* MOV[ZN]: ((S+A) >> 32) & 0xffff */ | |
| a6bb11b2 | 703 | HOWTO64 (AARCH64_R (MOVW_SABS_G2), /* type */ |
| a06ea964 NC |
704 | 32, /* rightshift */ |
| 705 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| c5e3a364 | 706 | 17, /* bitsize */ |
| a06ea964 NC |
707 | FALSE, /* pc_relative */ |
| 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 */ |
| a06ea964 NC |
712 | FALSE, /* partial_inplace */ |
| 713 | 0xffff, /* src_mask */ | |
| 714 | 0xffff, /* dst_mask */ | |
| 715 | FALSE), /* pcrel_offset */ | |
| 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 RL |
722 | 0, /* rightshift */ |
| 723 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 724 | 17, /* bitsize */ | |
| 725 | TRUE, /* pc_relative */ | |
| 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 */ | |
| 730 | FALSE, /* partial_inplace */ | |
| 731 | 0xffff, /* src_mask */ | |
| 732 | 0xffff, /* dst_mask */ | |
| 733 | TRUE), /* pcrel_offset */ | |
| 734 | ||
| 735 | /* MOVK: ((S+A-P) >> 0) & 0xffff [no overflow check] */ | |
| e30d1fa1 | 736 | HOWTO (AARCH64_R (MOVW_PREL_G0_NC), /* type */ |
| 32247401 RL |
737 | 0, /* rightshift */ |
| 738 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 739 | 16, /* bitsize */ | |
| 740 | TRUE, /* pc_relative */ | |
| 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 */ | |
| 745 | FALSE, /* partial_inplace */ | |
| 746 | 0xffff, /* src_mask */ | |
| 747 | 0xffff, /* dst_mask */ | |
| 748 | TRUE), /* pcrel_offset */ | |
| 749 | ||
| 750 | /* MOV[NZ]: ((S+A-P) >> 16) & 0xffff */ | |
| e30d1fa1 | 751 | HOWTO (AARCH64_R (MOVW_PREL_G1), /* type */ |
| 32247401 RL |
752 | 16, /* rightshift */ |
| 753 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 754 | 17, /* bitsize */ | |
| 755 | TRUE, /* pc_relative */ | |
| 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 */ | |
| 760 | FALSE, /* partial_inplace */ | |
| 761 | 0xffff, /* src_mask */ | |
| 762 | 0xffff, /* dst_mask */ | |
| 763 | TRUE), /* pcrel_offset */ | |
| 764 | ||
| 765 | /* MOVK: ((S+A-P) >> 16) & 0xffff [no overflow check] */ | |
| 766 | HOWTO64 (AARCH64_R (MOVW_PREL_G1_NC), /* type */ | |
| 767 | 16, /* rightshift */ | |
| 768 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 769 | 16, /* bitsize */ | |
| 770 | TRUE, /* pc_relative */ | |
| 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 */ | |
| 775 | FALSE, /* partial_inplace */ | |
| 776 | 0xffff, /* src_mask */ | |
| 777 | 0xffff, /* dst_mask */ | |
| 778 | TRUE), /* pcrel_offset */ | |
| 779 | ||
| 780 | /* MOV[NZ]: ((S+A-P) >> 32) & 0xffff */ | |
| 781 | HOWTO64 (AARCH64_R (MOVW_PREL_G2), /* type */ | |
| 782 | 32, /* rightshift */ | |
| 783 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 784 | 17, /* bitsize */ | |
| 785 | TRUE, /* pc_relative */ | |
| 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 */ | |
| 790 | FALSE, /* partial_inplace */ | |
| 791 | 0xffff, /* src_mask */ | |
| 792 | 0xffff, /* dst_mask */ | |
| 793 | TRUE), /* pcrel_offset */ | |
| 794 | ||
| 795 | /* MOVK: ((S+A-P) >> 32) & 0xffff [no overflow check] */ | |
| 796 | HOWTO64 (AARCH64_R (MOVW_PREL_G2_NC), /* type */ | |
| 797 | 32, /* rightshift */ | |
| 798 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 799 | 16, /* bitsize */ | |
| 800 | TRUE, /* pc_relative */ | |
| 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 */ | |
| 805 | FALSE, /* partial_inplace */ | |
| 806 | 0xffff, /* src_mask */ | |
| 807 | 0xffff, /* dst_mask */ | |
| 808 | TRUE), /* pcrel_offset */ | |
| 809 | ||
| 810 | /* MOV[NZ]: ((S+A-P) >> 48) & 0xffff */ | |
| 811 | HOWTO64 (AARCH64_R (MOVW_PREL_G3), /* type */ | |
| 812 | 48, /* rightshift */ | |
| 813 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 814 | 16, /* bitsize */ | |
| 815 | TRUE, /* pc_relative */ | |
| 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 */ | |
| 820 | FALSE, /* partial_inplace */ | |
| 821 | 0xffff, /* src_mask */ | |
| 822 | 0xffff, /* dst_mask */ | |
| 823 | TRUE), /* pcrel_offset */ | |
| 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 NC |
830 | 2, /* rightshift */ |
| 831 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 832 | 19, /* bitsize */ | |
| 833 | TRUE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
838 | FALSE, /* partial_inplace */ |
| 839 | 0x7ffff, /* src_mask */ | |
| 840 | 0x7ffff, /* dst_mask */ | |
| 841 | TRUE), /* pcrel_offset */ | |
| 842 | ||
| 843 | /* ADR: (S+A-P) & 0x1fffff */ | |
| a6bb11b2 | 844 | HOWTO (AARCH64_R (ADR_PREL_LO21), /* type */ |
| a06ea964 NC |
845 | 0, /* rightshift */ |
| 846 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 847 | 21, /* bitsize */ | |
| 848 | TRUE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
853 | FALSE, /* partial_inplace */ |
| 854 | 0x1fffff, /* src_mask */ | |
| 855 | 0x1fffff, /* dst_mask */ | |
| 856 | TRUE), /* pcrel_offset */ | |
| 857 | ||
| 858 | /* ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ | |
| a6bb11b2 | 859 | HOWTO (AARCH64_R (ADR_PREL_PG_HI21), /* type */ |
| a06ea964 NC |
860 | 12, /* rightshift */ |
| 861 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 862 | 21, /* bitsize */ | |
| 863 | TRUE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
868 | FALSE, /* partial_inplace */ |
| 869 | 0x1fffff, /* src_mask */ | |
| 870 | 0x1fffff, /* dst_mask */ | |
| 871 | TRUE), /* pcrel_offset */ | |
| 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 NC |
875 | 12, /* rightshift */ |
| 876 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 877 | 21, /* bitsize */ | |
| 878 | TRUE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
883 | FALSE, /* partial_inplace */ |
| 884 | 0x1fffff, /* src_mask */ | |
| 885 | 0x1fffff, /* dst_mask */ | |
| 886 | TRUE), /* pcrel_offset */ | |
| 887 | ||
| 888 | /* ADD: (S+A) & 0xfff [no overflow check] */ | |
| a6bb11b2 | 889 | HOWTO (AARCH64_R (ADD_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
890 | 0, /* rightshift */ |
| 891 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 892 | 12, /* bitsize */ | |
| 893 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
898 | FALSE, /* partial_inplace */ |
| 899 | 0x3ffc00, /* src_mask */ | |
| 900 | 0x3ffc00, /* dst_mask */ | |
| 901 | FALSE), /* pcrel_offset */ | |
| 902 | ||
| 903 | /* LD/ST8: (S+A) & 0xfff */ | |
| a6bb11b2 | 904 | HOWTO (AARCH64_R (LDST8_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
905 | 0, /* rightshift */ |
| 906 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 907 | 12, /* bitsize */ | |
| 908 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
913 | FALSE, /* partial_inplace */ |
| 914 | 0xfff, /* src_mask */ | |
| 915 | 0xfff, /* dst_mask */ | |
| 916 | FALSE), /* pcrel_offset */ | |
| 917 | ||
| 918 | /* Relocations for control-flow instructions. */ | |
| 919 | ||
| 920 | /* TBZ/NZ: ((S+A-P) >> 2) & 0x3fff */ | |
| a6bb11b2 | 921 | HOWTO (AARCH64_R (TSTBR14), /* type */ |
| a06ea964 NC |
922 | 2, /* rightshift */ |
| 923 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 924 | 14, /* bitsize */ | |
| 925 | TRUE, /* pc_relative */ | |
| 926 | 0, /* bitpos */ | |
| 927 | complain_overflow_signed, /* complain_on_overflow */ | |
| 928 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 929 | AARCH64_R_STR (TSTBR14), /* name */ |
| a06ea964 NC |
930 | FALSE, /* partial_inplace */ |
| 931 | 0x3fff, /* src_mask */ | |
| 932 | 0x3fff, /* dst_mask */ | |
| 933 | TRUE), /* pcrel_offset */ | |
| 934 | ||
| 935 | /* B.cond: ((S+A-P) >> 2) & 0x7ffff */ | |
| a6bb11b2 | 936 | HOWTO (AARCH64_R (CONDBR19), /* type */ |
| a06ea964 NC |
937 | 2, /* rightshift */ |
| 938 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 939 | 19, /* bitsize */ | |
| 940 | TRUE, /* pc_relative */ | |
| 941 | 0, /* bitpos */ | |
| 942 | complain_overflow_signed, /* complain_on_overflow */ | |
| 943 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 944 | AARCH64_R_STR (CONDBR19), /* name */ |
| a06ea964 NC |
945 | FALSE, /* partial_inplace */ |
| 946 | 0x7ffff, /* src_mask */ | |
| 947 | 0x7ffff, /* dst_mask */ | |
| 948 | TRUE), /* pcrel_offset */ | |
| 949 | ||
| a06ea964 | 950 | /* B: ((S+A-P) >> 2) & 0x3ffffff */ |
| a6bb11b2 | 951 | HOWTO (AARCH64_R (JUMP26), /* type */ |
| a06ea964 NC |
952 | 2, /* rightshift */ |
| 953 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 954 | 26, /* bitsize */ | |
| 955 | TRUE, /* pc_relative */ | |
| 956 | 0, /* bitpos */ | |
| 957 | complain_overflow_signed, /* complain_on_overflow */ | |
| 958 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 959 | AARCH64_R_STR (JUMP26), /* name */ |
| a06ea964 NC |
960 | FALSE, /* partial_inplace */ |
| 961 | 0x3ffffff, /* src_mask */ | |
| 962 | 0x3ffffff, /* dst_mask */ | |
| 963 | TRUE), /* pcrel_offset */ | |
| 964 | ||
| 965 | /* BL: ((S+A-P) >> 2) & 0x3ffffff */ | |
| a6bb11b2 | 966 | HOWTO (AARCH64_R (CALL26), /* type */ |
| a06ea964 NC |
967 | 2, /* rightshift */ |
| 968 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 969 | 26, /* bitsize */ | |
| 970 | TRUE, /* pc_relative */ | |
| 971 | 0, /* bitpos */ | |
| 972 | complain_overflow_signed, /* complain_on_overflow */ | |
| 973 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 974 | AARCH64_R_STR (CALL26), /* name */ |
| a06ea964 NC |
975 | FALSE, /* partial_inplace */ |
| 976 | 0x3ffffff, /* src_mask */ | |
| 977 | 0x3ffffff, /* dst_mask */ | |
| 978 | TRUE), /* pcrel_offset */ | |
| 979 | ||
| 980 | /* LD/ST16: (S+A) & 0xffe */ | |
| a6bb11b2 | 981 | HOWTO (AARCH64_R (LDST16_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
982 | 1, /* rightshift */ |
| 983 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 984 | 12, /* bitsize */ | |
| 985 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
990 | FALSE, /* partial_inplace */ |
| 991 | 0xffe, /* src_mask */ | |
| 992 | 0xffe, /* dst_mask */ | |
| 993 | FALSE), /* pcrel_offset */ | |
| 994 | ||
| 995 | /* LD/ST32: (S+A) & 0xffc */ | |
| a6bb11b2 | 996 | HOWTO (AARCH64_R (LDST32_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
997 | 2, /* rightshift */ |
| 998 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 999 | 12, /* bitsize */ | |
| 1000 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1005 | FALSE, /* partial_inplace */ |
| 1006 | 0xffc, /* src_mask */ | |
| 1007 | 0xffc, /* dst_mask */ | |
| 1008 | FALSE), /* pcrel_offset */ | |
| 1009 | ||
| 1010 | /* LD/ST64: (S+A) & 0xff8 */ | |
| a6bb11b2 | 1011 | HOWTO (AARCH64_R (LDST64_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
1012 | 3, /* rightshift */ |
| 1013 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1014 | 12, /* bitsize */ | |
| 1015 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1020 | FALSE, /* partial_inplace */ |
| 1021 | 0xff8, /* src_mask */ | |
| 1022 | 0xff8, /* dst_mask */ | |
| 1023 | FALSE), /* pcrel_offset */ | |
| 1024 | ||
| a06ea964 | 1025 | /* LD/ST128: (S+A) & 0xff0 */ |
| a6bb11b2 | 1026 | HOWTO (AARCH64_R (LDST128_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
1027 | 4, /* rightshift */ |
| 1028 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1029 | 12, /* bitsize */ | |
| 1030 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1035 | FALSE, /* partial_inplace */ |
| 1036 | 0xff0, /* src_mask */ | |
| 1037 | 0xff0, /* dst_mask */ | |
| 1038 | FALSE), /* pcrel_offset */ | |
| 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 RE |
1043 | 2, /* rightshift */ |
| 1044 | 2, /* size (0 = byte,1 = short,2 = long) */ | |
| 1045 | 19, /* bitsize */ | |
| 1046 | TRUE, /* pc_relative */ | |
| 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 */ |
| f41aef5f RE |
1051 | FALSE, /* partial_inplace */ |
| 1052 | 0xffffe0, /* src_mask */ | |
| 1053 | 0xffffe0, /* dst_mask */ | |
| 1054 | TRUE), /* pcrel_offset */ | |
| 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 NC |
1059 | 12, /* rightshift */ |
| 1060 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1061 | 21, /* bitsize */ | |
| 1062 | TRUE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1067 | FALSE, /* partial_inplace */ |
| 1068 | 0x1fffff, /* src_mask */ | |
| 1069 | 0x1fffff, /* dst_mask */ | |
| 1070 | TRUE), /* pcrel_offset */ | |
| 1071 | ||
| a6bb11b2 YZ |
1072 | /* LD64: GOT offset G(S) & 0xff8 */ |
| 1073 | HOWTO64 (AARCH64_R (LD64_GOT_LO12_NC), /* type */ | |
| a06ea964 NC |
1074 | 3, /* rightshift */ |
| 1075 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1076 | 12, /* bitsize */ | |
| 1077 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1082 | FALSE, /* partial_inplace */ |
| 1083 | 0xff8, /* src_mask */ | |
| 1084 | 0xff8, /* dst_mask */ | |
| a6bb11b2 | 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 */ | |
| 1090 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1091 | 12, /* bitsize */ | |
| 1092 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1097 | FALSE, /* partial_inplace */ | |
| 1098 | 0xffc, /* src_mask */ | |
| 1099 | 0xffc, /* dst_mask */ | |
| 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 */ | |
| 1105 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1106 | 16, /* bitsize */ | |
| 1107 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1112 | FALSE, /* partial_inplace */ | |
| 1113 | 0xffff, /* src_mask */ | |
| 1114 | 0xffff, /* dst_mask */ | |
| 1115 | FALSE), /* pcrel_offset */ | |
| 1116 | ||
| 654248e7 RL |
1117 | /* Higher 16 bits of GOT offset for the symbol. */ |
| 1118 | HOWTO64 (AARCH64_R (MOVW_GOTOFF_G1), /* type */ | |
| 1119 | 16, /* rightshift */ | |
| 1120 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1121 | 16, /* bitsize */ | |
| 1122 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1127 | FALSE, /* partial_inplace */ | |
| 1128 | 0xffff, /* src_mask */ | |
| 1129 | 0xffff, /* dst_mask */ | |
| 1130 | FALSE), /* pcrel_offset */ | |
| 1131 | ||
| 87f5fbcc RL |
1132 | /* LD64: GOT offset for the symbol. */ |
| 1133 | HOWTO64 (AARCH64_R (LD64_GOTOFF_LO15), /* type */ | |
| 1134 | 3, /* rightshift */ | |
| 1135 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1136 | 12, /* bitsize */ | |
| 1137 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1142 | FALSE, /* partial_inplace */ | |
| 1143 | 0x7ff8, /* src_mask */ | |
| 1144 | 0x7ff8, /* dst_mask */ | |
| 1145 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1151 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1152 | 12, /* bitsize */ | |
| 1153 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1158 | FALSE, /* partial_inplace */ | |
| 1159 | 0x5ffc, /* src_mask */ | |
| 1160 | 0x5ffc, /* dst_mask */ | |
| 1161 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1167 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1168 | 12, /* bitsize */ | |
| 1169 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1174 | FALSE, /* partial_inplace */ | |
| 1175 | 0x7ff8, /* src_mask */ | |
| 1176 | 0x7ff8, /* dst_mask */ | |
| 1177 | FALSE), /* pcrel_offset */ | |
| 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 NC |
1182 | 12, /* rightshift */ |
| 1183 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1184 | 21, /* bitsize */ | |
| 1185 | TRUE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1190 | FALSE, /* partial_inplace */ |
| 1191 | 0x1fffff, /* src_mask */ | |
| 1192 | 0x1fffff, /* dst_mask */ | |
| 1193 | TRUE), /* pcrel_offset */ | |
| 1194 | ||
| 3c12b054 MS |
1195 | HOWTO (AARCH64_R (TLSGD_ADR_PREL21), /* type */ |
| 1196 | 0, /* rightshift */ | |
| 1197 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1198 | 21, /* bitsize */ | |
| 1199 | TRUE, /* pc_relative */ | |
| 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 */ | |
| 1204 | FALSE, /* partial_inplace */ | |
| 1205 | 0x1fffff, /* src_mask */ | |
| 1206 | 0x1fffff, /* dst_mask */ | |
| 1207 | TRUE), /* pcrel_offset */ | |
| 1208 | ||
| a06ea964 | 1209 | /* ADD: GOT offset G(S) & 0xff8 [no overflow check] */ |
| a6bb11b2 | 1210 | HOWTO (AARCH64_R (TLSGD_ADD_LO12_NC), /* type */ |
| a06ea964 NC |
1211 | 0, /* rightshift */ |
| 1212 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1213 | 12, /* bitsize */ | |
| 1214 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1219 | FALSE, /* partial_inplace */ |
| 1220 | 0xfff, /* src_mask */ | |
| 1221 | 0xfff, /* dst_mask */ | |
| 1222 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1227 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1228 | 16, /* bitsize */ | |
| 1229 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1234 | FALSE, /* partial_inplace */ | |
| 1235 | 0xffff, /* src_mask */ | |
| 1236 | 0xffff, /* dst_mask */ | |
| 1237 | FALSE), /* pcrel_offset */ | |
| 1238 | ||
| 1aa66fb1 RL |
1239 | /* Higher 16 bits of GOT offset to tls_index. */ |
| 1240 | HOWTO64 (AARCH64_R (TLSGD_MOVW_G1), /* type */ | |
| 1241 | 16, /* rightshift */ | |
| 1242 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1243 | 16, /* bitsize */ | |
| 1244 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1249 | FALSE, /* partial_inplace */ | |
| 1250 | 0xffff, /* src_mask */ | |
| 1251 | 0xffff, /* dst_mask */ | |
| 1252 | FALSE), /* pcrel_offset */ | |
| 1253 | ||
| a6bb11b2 | 1254 | HOWTO (AARCH64_R (TLSIE_ADR_GOTTPREL_PAGE21), /* type */ |
| a06ea964 NC |
1255 | 12, /* rightshift */ |
| 1256 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1257 | 21, /* bitsize */ | |
| 1258 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1263 | FALSE, /* partial_inplace */ |
| 1264 | 0x1fffff, /* src_mask */ | |
| 1265 | 0x1fffff, /* dst_mask */ | |
| 1266 | FALSE), /* pcrel_offset */ | |
| 1267 | ||
| a6bb11b2 | 1268 | HOWTO64 (AARCH64_R (TLSIE_LD64_GOTTPREL_LO12_NC), /* type */ |
| a06ea964 NC |
1269 | 3, /* rightshift */ |
| 1270 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1271 | 12, /* bitsize */ | |
| 1272 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1277 | FALSE, /* partial_inplace */ |
| 1278 | 0xff8, /* src_mask */ | |
| 1279 | 0xff8, /* dst_mask */ | |
| 1280 | FALSE), /* pcrel_offset */ | |
| 1281 | ||
| a6bb11b2 YZ |
1282 | HOWTO32 (AARCH64_R (TLSIE_LD32_GOTTPREL_LO12_NC), /* type */ |
| 1283 | 2, /* rightshift */ | |
| 1284 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1285 | 12, /* bitsize */ | |
| 1286 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1291 | FALSE, /* partial_inplace */ | |
| 1292 | 0xffc, /* src_mask */ | |
| 1293 | 0xffc, /* dst_mask */ | |
| 1294 | FALSE), /* pcrel_offset */ | |
| 1295 | ||
| 1296 | HOWTO (AARCH64_R (TLSIE_LD_GOTTPREL_PREL19), /* type */ | |
| bb3f9ed8 | 1297 | 2, /* rightshift */ |
| a06ea964 | 1298 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 043bf05a | 1299 | 19, /* bitsize */ |
| a06ea964 NC |
1300 | FALSE, /* pc_relative */ |
| 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 */ |
| a06ea964 NC |
1305 | FALSE, /* partial_inplace */ |
| 1306 | 0x1ffffc, /* src_mask */ | |
| 1307 | 0x1ffffc, /* dst_mask */ | |
| 1308 | FALSE), /* pcrel_offset */ | |
| 1309 | ||
| 3b957e5b RL |
1310 | HOWTO64 (AARCH64_R (TLSIE_MOVW_GOTTPREL_G0_NC), /* type */ |
| 1311 | 0, /* rightshift */ | |
| 1312 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1313 | 16, /* bitsize */ | |
| 1314 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1319 | FALSE, /* partial_inplace */ | |
| 1320 | 0xffff, /* src_mask */ | |
| 1321 | 0xffff, /* dst_mask */ | |
| 1322 | FALSE), /* pcrel_offset */ | |
| 1323 | ||
| 1324 | HOWTO64 (AARCH64_R (TLSIE_MOVW_GOTTPREL_G1), /* type */ | |
| 1325 | 16, /* rightshift */ | |
| 1326 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1327 | 16, /* bitsize */ | |
| 1328 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1333 | FALSE, /* partial_inplace */ | |
| 1334 | 0xffff, /* src_mask */ | |
| 1335 | 0xffff, /* dst_mask */ | |
| 1336 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1341 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1342 | 12, /* bitsize */ | |
| 1343 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1348 | FALSE, /* partial_inplace */ | |
| 1349 | 0xfff, /* src_mask */ | |
| 1350 | 0xfff, /* dst_mask */ | |
| 1351 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1356 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1357 | 12, /* bitsize */ | |
| 1358 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1363 | FALSE, /* partial_inplace */ | |
| 1364 | 0xfff, /* src_mask */ | |
| 1365 | 0xfff, /* dst_mask */ | |
| 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 */ | |
| 1371 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1372 | 12, /* bitsize */ | |
| 1373 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1378 | FALSE, /* partial_inplace */ | |
| 1379 | 0xfff, /* src_mask */ | |
| 1380 | 0xfff, /* dst_mask */ | |
| 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 */ | |
| 1386 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1387 | 12, /* bitsize */ | |
| 1388 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1393 | FALSE, /* partial_inplace */ | |
| 1394 | 0xfff, /* src_mask */ | |
| 1395 | 0xfff, /* dst_mask */ | |
| 1396 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1402 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1403 | 21, /* bitsize */ | |
| 1404 | TRUE, /* pc_relative */ | |
| 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 */ | |
| 1409 | FALSE, /* partial_inplace */ | |
| 1410 | 0x1fffff, /* src_mask */ | |
| 1411 | 0x1fffff, /* dst_mask */ | |
| 1412 | TRUE), /* pcrel_offset */ | |
| 1413 | ||
| 6c37fedc JW |
1414 | HOWTO (AARCH64_R (TLSLD_ADR_PREL21), /* type */ |
| 1415 | 0, /* rightshift */ | |
| 1416 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1417 | 21, /* bitsize */ | |
| 1418 | TRUE, /* pc_relative */ | |
| 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 */ | |
| 1423 | FALSE, /* partial_inplace */ | |
| 1424 | 0x1fffff, /* src_mask */ | |
| 1425 | 0x1fffff, /* dst_mask */ | |
| 1426 | TRUE), /* pcrel_offset */ | |
| 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 */ | |
| 1431 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1432 | 11, /* bitsize */ | |
| 1433 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1438 | FALSE, /* partial_inplace */ | |
| 1439 | 0x1ffc00, /* src_mask */ | |
| 1440 | 0x1ffc00, /* dst_mask */ | |
| 1441 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1446 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1447 | 11, /* bitsize */ | |
| 1448 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1453 | FALSE, /* partial_inplace */ | |
| 1454 | 0x1ffc00, /* src_mask */ | |
| 1455 | 0x1ffc00, /* dst_mask */ | |
| 1456 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1461 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1462 | 10, /* bitsize */ | |
| 1463 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1468 | FALSE, /* partial_inplace */ | |
| 1469 | 0x3ffc00, /* src_mask */ | |
| 1470 | 0x3ffc00, /* dst_mask */ | |
| 1471 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1476 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1477 | 10, /* bitsize */ | |
| 1478 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1483 | FALSE, /* partial_inplace */ | |
| 1484 | 0xffc00, /* src_mask */ | |
| 1485 | 0xffc00, /* dst_mask */ | |
| 1486 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1491 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1492 | 9, /* bitsize */ | |
| 1493 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1498 | FALSE, /* partial_inplace */ | |
| 1499 | 0x3ffc00, /* src_mask */ | |
| 1500 | 0x3ffc00, /* dst_mask */ | |
| 1501 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1506 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1507 | 9, /* bitsize */ | |
| 1508 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1513 | FALSE, /* partial_inplace */ | |
| 1514 | 0x7fc00, /* src_mask */ | |
| 1515 | 0x7fc00, /* dst_mask */ | |
| 1516 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1521 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1522 | 12, /* bitsize */ | |
| 1523 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1528 | FALSE, /* partial_inplace */ | |
| 1529 | 0x3ffc00, /* src_mask */ | |
| 1530 | 0x3ffc00, /* dst_mask */ | |
| 1531 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1536 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1537 | 12, /* bitsize */ | |
| 1538 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1543 | FALSE, /* partial_inplace */ | |
| 1544 | 0x3ffc00, /* src_mask */ | |
| 1545 | 0x3ffc00, /* dst_mask */ | |
| 1546 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1551 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1552 | 16, /* bitsize */ | |
| 1553 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1558 | FALSE, /* partial_inplace */ | |
| 1559 | 0xffff, /* src_mask */ | |
| 1560 | 0xffff, /* dst_mask */ | |
| 1561 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1566 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1567 | 16, /* bitsize */ | |
| 1568 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1573 | FALSE, /* partial_inplace */ | |
| 1574 | 0xffff, /* src_mask */ | |
| 1575 | 0xffff, /* dst_mask */ | |
| 1576 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1581 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1582 | 16, /* bitsize */ | |
| 1583 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1588 | FALSE, /* partial_inplace */ | |
| 1589 | 0xffff, /* src_mask */ | |
| 1590 | 0xffff, /* dst_mask */ | |
| 1591 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1596 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1597 | 16, /* bitsize */ | |
| 1598 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1603 | FALSE, /* partial_inplace */ | |
| 1604 | 0xffff, /* src_mask */ | |
| 1605 | 0xffff, /* dst_mask */ | |
| 1606 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1611 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1612 | 16, /* bitsize */ | |
| 1613 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1618 | FALSE, /* partial_inplace */ | |
| 1619 | 0xffff, /* src_mask */ | |
| 1620 | 0xffff, /* dst_mask */ | |
| 1621 | FALSE), /* pcrel_offset */ | |
| 1622 | ||
| a6bb11b2 | 1623 | HOWTO64 (AARCH64_R (TLSLE_MOVW_TPREL_G2), /* type */ |
| bb3f9ed8 | 1624 | 32, /* rightshift */ |
| a06ea964 | 1625 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 07875fbc | 1626 | 16, /* bitsize */ |
| a06ea964 NC |
1627 | FALSE, /* pc_relative */ |
| 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 */ |
| a06ea964 NC |
1632 | FALSE, /* partial_inplace */ |
| 1633 | 0xffff, /* src_mask */ | |
| 1634 | 0xffff, /* dst_mask */ | |
| 1635 | FALSE), /* pcrel_offset */ | |
| 1636 | ||
| a6bb11b2 | 1637 | HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G1), /* type */ |
| bb3f9ed8 | 1638 | 16, /* rightshift */ |
| a06ea964 | 1639 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 07875fbc | 1640 | 16, /* bitsize */ |
| a06ea964 NC |
1641 | FALSE, /* pc_relative */ |
| 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 */ |
| a06ea964 NC |
1646 | FALSE, /* partial_inplace */ |
| 1647 | 0xffff, /* src_mask */ | |
| 1648 | 0xffff, /* dst_mask */ | |
| 1649 | FALSE), /* pcrel_offset */ | |
| 1650 | ||
| a6bb11b2 | 1651 | HOWTO64 (AARCH64_R (TLSLE_MOVW_TPREL_G1_NC), /* type */ |
| bb3f9ed8 | 1652 | 16, /* rightshift */ |
| a06ea964 | 1653 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 07875fbc | 1654 | 16, /* bitsize */ |
| a06ea964 NC |
1655 | FALSE, /* pc_relative */ |
| 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 */ |
| a06ea964 NC |
1660 | FALSE, /* partial_inplace */ |
| 1661 | 0xffff, /* src_mask */ | |
| 1662 | 0xffff, /* dst_mask */ | |
| 1663 | FALSE), /* pcrel_offset */ | |
| 1664 | ||
| a6bb11b2 | 1665 | HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G0), /* type */ |
| a06ea964 NC |
1666 | 0, /* rightshift */ |
| 1667 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 07875fbc | 1668 | 16, /* bitsize */ |
| a06ea964 NC |
1669 | FALSE, /* pc_relative */ |
| 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 */ |
| a06ea964 NC |
1674 | FALSE, /* partial_inplace */ |
| 1675 | 0xffff, /* src_mask */ | |
| 1676 | 0xffff, /* dst_mask */ | |
| 1677 | FALSE), /* pcrel_offset */ | |
| 1678 | ||
| a6bb11b2 | 1679 | HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G0_NC), /* type */ |
| a06ea964 NC |
1680 | 0, /* rightshift */ |
| 1681 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 07875fbc | 1682 | 16, /* bitsize */ |
| a06ea964 NC |
1683 | FALSE, /* pc_relative */ |
| 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 */ |
| a06ea964 NC |
1688 | FALSE, /* partial_inplace */ |
| 1689 | 0xffff, /* src_mask */ | |
| 1690 | 0xffff, /* dst_mask */ | |
| 1691 | FALSE), /* pcrel_offset */ | |
| 1692 | ||
| a6bb11b2 | 1693 | HOWTO (AARCH64_R (TLSLE_ADD_TPREL_HI12), /* type */ |
| bb3f9ed8 | 1694 | 12, /* rightshift */ |
| a06ea964 NC |
1695 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1696 | 12, /* bitsize */ | |
| 1697 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1702 | FALSE, /* partial_inplace */ |
| 1703 | 0xfff, /* src_mask */ | |
| 1704 | 0xfff, /* dst_mask */ | |
| 1705 | FALSE), /* pcrel_offset */ | |
| 1706 | ||
| a6bb11b2 | 1707 | HOWTO (AARCH64_R (TLSLE_ADD_TPREL_LO12), /* type */ |
| a06ea964 NC |
1708 | 0, /* rightshift */ |
| 1709 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1710 | 12, /* bitsize */ | |
| 1711 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1716 | FALSE, /* partial_inplace */ |
| 1717 | 0xfff, /* src_mask */ | |
| 1718 | 0xfff, /* dst_mask */ | |
| 1719 | FALSE), /* pcrel_offset */ | |
| 1720 | ||
| a6bb11b2 | 1721 | HOWTO (AARCH64_R (TLSLE_ADD_TPREL_LO12_NC), /* type */ |
| a06ea964 NC |
1722 | 0, /* rightshift */ |
| 1723 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1724 | 12, /* bitsize */ | |
| 1725 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1730 | FALSE, /* partial_inplace */ |
| 1731 | 0xfff, /* src_mask */ | |
| 1732 | 0xfff, /* dst_mask */ | |
| 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 */ | |
| 1738 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1739 | 11, /* bitsize */ | |
| 1740 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1745 | FALSE, /* partial_inplace */ | |
| 1746 | 0x1ffc00, /* src_mask */ | |
| 1747 | 0x1ffc00, /* dst_mask */ | |
| 1748 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1753 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1754 | 11, /* bitsize */ | |
| 1755 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1760 | FALSE, /* partial_inplace */ | |
| 1761 | 0x1ffc00, /* src_mask */ | |
| 1762 | 0x1ffc00, /* dst_mask */ | |
| 1763 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1768 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1769 | 10, /* bitsize */ | |
| 1770 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1775 | FALSE, /* partial_inplace */ | |
| 1776 | 0xffc00, /* src_mask */ | |
| 1777 | 0xffc00, /* dst_mask */ | |
| 1778 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1783 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1784 | 10, /* bitsize */ | |
| 1785 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1790 | FALSE, /* partial_inplace */ | |
| 1791 | 0xffc00, /* src_mask */ | |
| 1792 | 0xffc00, /* dst_mask */ | |
| 1793 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1798 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1799 | 9, /* bitsize */ | |
| 1800 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1805 | FALSE, /* partial_inplace */ | |
| 1806 | 0x7fc00, /* src_mask */ | |
| 1807 | 0x7fc00, /* dst_mask */ | |
| 1808 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1813 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1814 | 9, /* bitsize */ | |
| 1815 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1820 | FALSE, /* partial_inplace */ | |
| 1821 | 0x7fc00, /* src_mask */ | |
| 1822 | 0x7fc00, /* dst_mask */ | |
| 1823 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1828 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1829 | 12, /* bitsize */ | |
| 1830 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1835 | FALSE, /* partial_inplace */ | |
| 1836 | 0x3ffc00, /* src_mask */ | |
| 1837 | 0x3ffc00, /* dst_mask */ | |
| 1838 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 1843 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1844 | 12, /* bitsize */ | |
| 1845 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1850 | FALSE, /* partial_inplace */ | |
| 1851 | 0x3ffc00, /* src_mask */ | |
| 1852 | 0x3ffc00, /* dst_mask */ | |
| 1853 | FALSE), /* pcrel_offset */ | |
| 1854 | ||
| a6bb11b2 | 1855 | HOWTO (AARCH64_R (TLSDESC_LD_PREL19), /* type */ |
| bb3f9ed8 | 1856 | 2, /* rightshift */ |
| a06ea964 | 1857 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1ada945d | 1858 | 19, /* bitsize */ |
| a06ea964 NC |
1859 | TRUE, /* pc_relative */ |
| 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 */ |
| a06ea964 | 1864 | FALSE, /* partial_inplace */ |
| 1ada945d MS |
1865 | 0x0ffffe0, /* src_mask */ |
| 1866 | 0x0ffffe0, /* dst_mask */ | |
| a06ea964 NC |
1867 | TRUE), /* pcrel_offset */ |
| 1868 | ||
| a6bb11b2 | 1869 | HOWTO (AARCH64_R (TLSDESC_ADR_PREL21), /* type */ |
| a06ea964 NC |
1870 | 0, /* rightshift */ |
| 1871 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1872 | 21, /* bitsize */ | |
| 1873 | TRUE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1878 | FALSE, /* partial_inplace */ |
| 1879 | 0x1fffff, /* src_mask */ | |
| 1880 | 0x1fffff, /* dst_mask */ | |
| 1881 | TRUE), /* pcrel_offset */ | |
| 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 NC |
1886 | 12, /* rightshift */ |
| 1887 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1888 | 21, /* bitsize */ | |
| 1889 | TRUE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1894 | FALSE, /* partial_inplace */ |
| 1895 | 0x1fffff, /* src_mask */ | |
| 1896 | 0x1fffff, /* dst_mask */ | |
| 1897 | TRUE), /* pcrel_offset */ | |
| 1898 | ||
| a6bb11b2 | 1899 | /* LD64: GOT offset G(S) & 0xff8. */ |
| f955cccf | 1900 | HOWTO64 (AARCH64_R (TLSDESC_LD64_LO12), /* type */ |
| a06ea964 NC |
1901 | 3, /* rightshift */ |
| 1902 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1903 | 12, /* bitsize */ | |
| 1904 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 | 1909 | FALSE, /* partial_inplace */ |
| a6bb11b2 YZ |
1910 | 0xff8, /* src_mask */ |
| 1911 | 0xff8, /* dst_mask */ | |
| 1912 | FALSE), /* pcrel_offset */ | |
| 1913 | ||
| 1914 | /* LD32: GOT offset G(S) & 0xffc. */ | |
| 1915 | HOWTO32 (AARCH64_R (TLSDESC_LD32_LO12_NC), /* type */ | |
| 1916 | 2, /* rightshift */ | |
| 1917 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1918 | 12, /* bitsize */ | |
| 1919 | FALSE, /* pc_relative */ | |
| 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 */ | |
| 1924 | FALSE, /* partial_inplace */ | |
| 1925 | 0xffc, /* src_mask */ | |
| 1926 | 0xffc, /* dst_mask */ | |
| a06ea964 NC |
1927 | FALSE), /* pcrel_offset */ |
| 1928 | ||
| 1929 | /* ADD: GOT offset G(S) & 0xfff. */ | |
| f955cccf | 1930 | HOWTO (AARCH64_R (TLSDESC_ADD_LO12), /* type */ |
| a06ea964 NC |
1931 | 0, /* rightshift */ |
| 1932 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1933 | 12, /* bitsize */ | |
| 1934 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1939 | FALSE, /* partial_inplace */ |
| 1940 | 0xfff, /* src_mask */ | |
| 1941 | 0xfff, /* dst_mask */ | |
| 1942 | FALSE), /* pcrel_offset */ | |
| 1943 | ||
| a6bb11b2 | 1944 | HOWTO64 (AARCH64_R (TLSDESC_OFF_G1), /* type */ |
| bb3f9ed8 | 1945 | 16, /* rightshift */ |
| a06ea964 NC |
1946 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1947 | 12, /* bitsize */ | |
| 1948 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1953 | FALSE, /* partial_inplace */ |
| 1954 | 0xffff, /* src_mask */ | |
| 1955 | 0xffff, /* dst_mask */ | |
| 1956 | FALSE), /* pcrel_offset */ | |
| 1957 | ||
| a6bb11b2 | 1958 | HOWTO64 (AARCH64_R (TLSDESC_OFF_G0_NC), /* type */ |
| a06ea964 NC |
1959 | 0, /* rightshift */ |
| 1960 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1961 | 12, /* bitsize */ | |
| 1962 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1967 | FALSE, /* partial_inplace */ |
| 1968 | 0xffff, /* src_mask */ | |
| 1969 | 0xffff, /* dst_mask */ | |
| 1970 | FALSE), /* pcrel_offset */ | |
| 1971 | ||
| a6bb11b2 | 1972 | HOWTO64 (AARCH64_R (TLSDESC_LDR), /* type */ |
| a06ea964 NC |
1973 | 0, /* rightshift */ |
| 1974 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1975 | 12, /* bitsize */ | |
| 1976 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1981 | FALSE, /* partial_inplace */ |
| 1982 | 0x0, /* src_mask */ | |
| 1983 | 0x0, /* dst_mask */ | |
| 1984 | FALSE), /* pcrel_offset */ | |
| 1985 | ||
| a6bb11b2 | 1986 | HOWTO64 (AARCH64_R (TLSDESC_ADD), /* type */ |
| a06ea964 NC |
1987 | 0, /* rightshift */ |
| 1988 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1989 | 12, /* bitsize */ | |
| 1990 | FALSE, /* pc_relative */ | |
| 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 */ |
| a06ea964 NC |
1995 | FALSE, /* partial_inplace */ |
| 1996 | 0x0, /* src_mask */ | |
| 1997 | 0x0, /* dst_mask */ | |
| 1998 | FALSE), /* pcrel_offset */ | |
| 1999 | ||
| a6bb11b2 | 2000 | HOWTO (AARCH64_R (TLSDESC_CALL), /* type */ |
| a06ea964 NC |
2001 | 0, /* rightshift */ |
| 2002 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 7366006f | 2003 | 0, /* bitsize */ |
| a06ea964 NC |
2004 | FALSE, /* pc_relative */ |
| 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 */ |
| a06ea964 NC |
2009 | FALSE, /* partial_inplace */ |
| 2010 | 0x0, /* src_mask */ | |
| 2011 | 0x0, /* dst_mask */ | |
| 2012 | FALSE), /* pcrel_offset */ | |
| a6bb11b2 YZ |
2013 | |
| 2014 | HOWTO (AARCH64_R (COPY), /* type */ | |
| 2015 | 0, /* rightshift */ | |
| 2016 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2017 | 64, /* bitsize */ | |
| 2018 | FALSE, /* pc_relative */ | |
| 2019 | 0, /* bitpos */ | |
| 2020 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2021 | bfd_elf_generic_reloc, /* special_function */ | |
| 2022 | AARCH64_R_STR (COPY), /* name */ | |
| 2023 | TRUE, /* partial_inplace */ | |
| 2024 | 0xffffffff, /* src_mask */ | |
| 2025 | 0xffffffff, /* dst_mask */ | |
| 2026 | FALSE), /* pcrel_offset */ | |
| 2027 | ||
| 2028 | HOWTO (AARCH64_R (GLOB_DAT), /* type */ | |
| 2029 | 0, /* rightshift */ | |
| 2030 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2031 | 64, /* bitsize */ | |
| 2032 | FALSE, /* pc_relative */ | |
| 2033 | 0, /* bitpos */ | |
| 2034 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2035 | bfd_elf_generic_reloc, /* special_function */ | |
| 2036 | AARCH64_R_STR (GLOB_DAT), /* name */ | |
| 2037 | TRUE, /* partial_inplace */ | |
| 2038 | 0xffffffff, /* src_mask */ | |
| 2039 | 0xffffffff, /* dst_mask */ | |
| 2040 | FALSE), /* pcrel_offset */ | |
| 2041 | ||
| 2042 | HOWTO (AARCH64_R (JUMP_SLOT), /* type */ | |
| 2043 | 0, /* rightshift */ | |
| 2044 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2045 | 64, /* bitsize */ | |
| 2046 | FALSE, /* pc_relative */ | |
| 2047 | 0, /* bitpos */ | |
| 2048 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2049 | bfd_elf_generic_reloc, /* special_function */ | |
| 2050 | AARCH64_R_STR (JUMP_SLOT), /* name */ | |
| 2051 | TRUE, /* partial_inplace */ | |
| 2052 | 0xffffffff, /* src_mask */ | |
| 2053 | 0xffffffff, /* dst_mask */ | |
| 2054 | FALSE), /* pcrel_offset */ | |
| 2055 | ||
| 2056 | HOWTO (AARCH64_R (RELATIVE), /* type */ | |
| 2057 | 0, /* rightshift */ | |
| 2058 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2059 | 64, /* bitsize */ | |
| 2060 | FALSE, /* pc_relative */ | |
| 2061 | 0, /* bitpos */ | |
| 2062 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2063 | bfd_elf_generic_reloc, /* special_function */ | |
| 2064 | AARCH64_R_STR (RELATIVE), /* name */ | |
| 2065 | TRUE, /* partial_inplace */ | |
| 2066 | ALL_ONES, /* src_mask */ | |
| 2067 | ALL_ONES, /* dst_mask */ | |
| 2068 | FALSE), /* pcrel_offset */ | |
| 2069 | ||
| 2070 | HOWTO (AARCH64_R (TLS_DTPMOD), /* type */ | |
| 2071 | 0, /* rightshift */ | |
| 2072 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2073 | 64, /* bitsize */ | |
| 2074 | FALSE, /* pc_relative */ | |
| 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 |
| a6bb11b2 YZ |
2083 | FALSE, /* partial_inplace */ |
| 2084 | 0, /* src_mask */ | |
| 2085 | ALL_ONES, /* dst_mask */ | |
| 2086 | FALSE), /* pc_reloffset */ | |
| 2087 | ||
| 2088 | HOWTO (AARCH64_R (TLS_DTPREL), /* type */ | |
| 2089 | 0, /* rightshift */ | |
| 2090 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2091 | 64, /* bitsize */ | |
| 2092 | FALSE, /* pc_relative */ | |
| 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 |
| a6bb11b2 YZ |
2101 | FALSE, /* partial_inplace */ |
| 2102 | 0, /* src_mask */ | |
| 2103 | ALL_ONES, /* dst_mask */ | |
| 2104 | FALSE), /* pcrel_offset */ | |
| 2105 | ||
| 2106 | HOWTO (AARCH64_R (TLS_TPREL), /* type */ | |
| 2107 | 0, /* rightshift */ | |
| 2108 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2109 | 64, /* bitsize */ | |
| 2110 | FALSE, /* pc_relative */ | |
| 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 |
| a6bb11b2 YZ |
2119 | FALSE, /* partial_inplace */ |
| 2120 | 0, /* src_mask */ | |
| 2121 | ALL_ONES, /* dst_mask */ | |
| 2122 | FALSE), /* pcrel_offset */ | |
| 2123 | ||
| 2124 | HOWTO (AARCH64_R (TLSDESC), /* type */ | |
| 2125 | 0, /* rightshift */ | |
| 2126 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2127 | 64, /* bitsize */ | |
| 2128 | FALSE, /* pc_relative */ | |
| 2129 | 0, /* bitpos */ | |
| 2130 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2131 | bfd_elf_generic_reloc, /* special_function */ | |
| 2132 | AARCH64_R_STR (TLSDESC), /* name */ | |
| 2133 | FALSE, /* partial_inplace */ | |
| 2134 | 0, /* src_mask */ | |
| 2135 | ALL_ONES, /* dst_mask */ | |
| 2136 | FALSE), /* pcrel_offset */ | |
| 2137 | ||
| 2138 | HOWTO (AARCH64_R (IRELATIVE), /* type */ | |
| 2139 | 0, /* rightshift */ | |
| 2140 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2141 | 64, /* bitsize */ | |
| 2142 | FALSE, /* pc_relative */ | |
| 2143 | 0, /* bitpos */ | |
| 2144 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2145 | bfd_elf_generic_reloc, /* special_function */ | |
| 2146 | AARCH64_R_STR (IRELATIVE), /* name */ | |
| 2147 | FALSE, /* partial_inplace */ | |
| 2148 | 0, /* src_mask */ | |
| 2149 | ALL_ONES, /* dst_mask */ | |
| 2150 | FALSE), /* pcrel_offset */ | |
| 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 */ | |
| 6346d5ca | 2158 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| a6bb11b2 YZ |
2159 | 0, /* bitsize */ |
| 2160 | FALSE, /* pc_relative */ | |
| 2161 | 0, /* bitpos */ | |
| 2162 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2163 | bfd_elf_generic_reloc, /* special_function */ | |
| 2164 | "R_AARCH64_NONE", /* name */ | |
| 2165 | FALSE, /* partial_inplace */ | |
| 2166 | 0, /* src_mask */ | |
| 2167 | 0, /* dst_mask */ | |
| 2168 | FALSE); /* pcrel_offset */ | |
| 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 YZ |
2193 | { |
| 2194 | static bfd_boolean initialized_p = FALSE; | |
| 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 | ||
| 2206 | initialized_p = TRUE; | |
| 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 | ||
| f3185997 | 2301 | static bfd_boolean |
| 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); | |
| 2314 | return FALSE; | |
| 2315 | } | |
| 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 | ||
| 2357 | /* The name of the dynamic interpreter. This is put in the .interp | |
| 2358 | section. */ | |
| 2359 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
| 2360 | ||
| 2361 | #define AARCH64_MAX_FWD_BRANCH_OFFSET \ | |
| 2362 | (((1 << 25) - 1) << 2) | |
| 2363 | #define AARCH64_MAX_BWD_BRANCH_OFFSET \ | |
| 2364 | (-((1 << 25) << 2)) | |
| 2365 | ||
| 2366 | #define AARCH64_MAX_ADRP_IMM ((1 << 20) - 1) | |
| 2367 | #define AARCH64_MIN_ADRP_IMM (-(1 << 20)) | |
| 2368 | ||
| 2369 | static int | |
| 2370 | aarch64_valid_for_adrp_p (bfd_vma value, bfd_vma place) | |
| 2371 | { | |
| 2372 | bfd_signed_vma offset = (bfd_signed_vma) (PG (value) - PG (place)) >> 12; | |
| 2373 | return offset <= AARCH64_MAX_ADRP_IMM && offset >= AARCH64_MIN_ADRP_IMM; | |
| 2374 | } | |
| 2375 | ||
| 2376 | static int | |
| 2377 | aarch64_valid_branch_p (bfd_vma value, bfd_vma place) | |
| 2378 | { | |
| 2379 | bfd_signed_vma offset = (bfd_signed_vma) (value - place); | |
| 2380 | return (offset <= AARCH64_MAX_FWD_BRANCH_OFFSET | |
| 2381 | && offset >= AARCH64_MAX_BWD_BRANCH_OFFSET); | |
| 2382 | } | |
| 2383 | ||
| 2384 | static const uint32_t aarch64_adrp_branch_stub [] = | |
| 2385 | { | |
| 2386 | 0x90000010, /* adrp ip0, X */ | |
| 2387 | /* R_AARCH64_ADR_HI21_PCREL(X) */ | |
| 2388 | 0x91000210, /* add ip0, ip0, :lo12:X */ | |
| 2389 | /* R_AARCH64_ADD_ABS_LO12_NC(X) */ | |
| 2390 | 0xd61f0200, /* br ip0 */ | |
| 2391 | }; | |
| 2392 | ||
| 2393 | static const uint32_t aarch64_long_branch_stub[] = | |
| 2394 | { | |
| cec5225b | 2395 | #if ARCH_SIZE == 64 |
| a06ea964 | 2396 | 0x58000090, /* ldr ip0, 1f */ |
| cec5225b YZ |
2397 | #else |
| 2398 | 0x18000090, /* ldr wip0, 1f */ | |
| 2399 | #endif | |
| a06ea964 NC |
2400 | 0x10000011, /* adr ip1, #0 */ |
| 2401 | 0x8b110210, /* add ip0, ip0, ip1 */ | |
| 2402 | 0xd61f0200, /* br ip0 */ | |
| cec5225b YZ |
2403 | 0x00000000, /* 1: .xword or .word |
| 2404 | R_AARCH64_PRELNN(X) + 12 | |
| a06ea964 NC |
2405 | */ |
| 2406 | 0x00000000, | |
| 2407 | }; | |
| 2408 | ||
| 68fcca92 JW |
2409 | static const uint32_t aarch64_erratum_835769_stub[] = |
| 2410 | { | |
| 2411 | 0x00000000, /* Placeholder for multiply accumulate. */ | |
| 2412 | 0x14000000, /* b <label> */ | |
| 2413 | }; | |
| 2414 | ||
| 4106101c MS |
2415 | static const uint32_t aarch64_erratum_843419_stub[] = |
| 2416 | { | |
| 2417 | 0x00000000, /* Placeholder for LDR instruction. */ | |
| 2418 | 0x14000000, /* b <label> */ | |
| 2419 | }; | |
| 2420 | ||
| a06ea964 NC |
2421 | /* Section name for stubs is the associated section name plus this |
| 2422 | string. */ | |
| 2423 | #define STUB_SUFFIX ".stub" | |
| 2424 | ||
| cec5225b | 2425 | enum elf_aarch64_stub_type |
| a06ea964 NC |
2426 | { |
| 2427 | aarch64_stub_none, | |
| 2428 | aarch64_stub_adrp_branch, | |
| 2429 | aarch64_stub_long_branch, | |
| 68fcca92 | 2430 | aarch64_stub_erratum_835769_veneer, |
| 4106101c | 2431 | aarch64_stub_erratum_843419_veneer, |
| a06ea964 NC |
2432 | }; |
| 2433 | ||
| cec5225b | 2434 | struct elf_aarch64_stub_hash_entry |
| a06ea964 NC |
2435 | { |
| 2436 | /* Base hash table entry structure. */ | |
| 2437 | struct bfd_hash_entry root; | |
| 2438 | ||
| 2439 | /* The stub section. */ | |
| 2440 | asection *stub_sec; | |
| 2441 | ||
| 2442 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 2443 | bfd_vma stub_offset; | |
| 2444 | ||
| 2445 | /* Given the symbol's value and its section we can determine its final | |
| 2446 | value when building the stubs (so the stub knows where to jump). */ | |
| 2447 | bfd_vma target_value; | |
| 2448 | asection *target_section; | |
| 2449 | ||
| cec5225b | 2450 | enum elf_aarch64_stub_type stub_type; |
| a06ea964 NC |
2451 | |
| 2452 | /* The symbol table entry, if any, that this was derived from. */ | |
| cec5225b | 2453 | struct elf_aarch64_link_hash_entry *h; |
| a06ea964 NC |
2454 | |
| 2455 | /* Destination symbol type */ | |
| 2456 | unsigned char st_type; | |
| 2457 | ||
| 2458 | /* Where this stub is being called from, or, in the case of combined | |
| 2459 | stub sections, the first input section in the group. */ | |
| 2460 | asection *id_sec; | |
| 2461 | ||
| 2462 | /* The name for the local symbol at the start of this stub. The | |
| 2463 | stub name in the hash table has to be unique; this does not, so | |
| 2464 | it can be friendlier. */ | |
| 2465 | char *output_name; | |
| 68fcca92 JW |
2466 | |
| 2467 | /* The instruction which caused this stub to be generated (only valid for | |
| 2468 | erratum 835769 workaround stubs at present). */ | |
| 2469 | uint32_t veneered_insn; | |
| 4106101c MS |
2470 | |
| 2471 | /* In an erratum 843419 workaround stub, the ADRP instruction offset. */ | |
| 2472 | bfd_vma adrp_offset; | |
| a06ea964 NC |
2473 | }; |
| 2474 | ||
| 2475 | /* Used to build a map of a section. This is required for mixed-endian | |
| 2476 | code/data. */ | |
| 2477 | ||
| cec5225b | 2478 | typedef struct elf_elf_section_map |
| a06ea964 NC |
2479 | { |
| 2480 | bfd_vma vma; | |
| 2481 | char type; | |
| 2482 | } | |
| cec5225b | 2483 | elf_aarch64_section_map; |
| a06ea964 NC |
2484 | |
| 2485 | ||
| 2486 | typedef struct _aarch64_elf_section_data | |
| 2487 | { | |
| 2488 | struct bfd_elf_section_data elf; | |
| 2489 | unsigned int mapcount; | |
| 2490 | unsigned int mapsize; | |
| cec5225b | 2491 | elf_aarch64_section_map *map; |
| a06ea964 NC |
2492 | } |
| 2493 | _aarch64_elf_section_data; | |
| 2494 | ||
| cec5225b | 2495 | #define elf_aarch64_section_data(sec) \ |
| a06ea964 NC |
2496 | ((_aarch64_elf_section_data *) elf_section_data (sec)) |
| 2497 | ||
| 4e8516b2 AP |
2498 | /* The size of the thread control block which is defined to be two pointers. */ |
| 2499 | #define TCB_SIZE (ARCH_SIZE/8)*2 | |
| a06ea964 NC |
2500 | |
| 2501 | struct elf_aarch64_local_symbol | |
| 2502 | { | |
| 2503 | unsigned int got_type; | |
| 2504 | bfd_signed_vma got_refcount; | |
| 2505 | bfd_vma got_offset; | |
| 2506 | ||
| 2507 | /* Offset of the GOTPLT entry reserved for the TLS descriptor. The | |
| 2508 | offset is from the end of the jump table and reserved entries | |
| 2509 | within the PLTGOT. | |
| 2510 | ||
| 2511 | The magic value (bfd_vma) -1 indicates that an offset has not be | |
| 2512 | allocated. */ | |
| 2513 | bfd_vma tlsdesc_got_jump_table_offset; | |
| 2514 | }; | |
| 2515 | ||
| 2516 | struct elf_aarch64_obj_tdata | |
| 2517 | { | |
| 2518 | struct elf_obj_tdata root; | |
| 2519 | ||
| 2520 | /* local symbol descriptors */ | |
| 2521 | struct elf_aarch64_local_symbol *locals; | |
| 2522 | ||
| 2523 | /* Zero to warn when linking objects with incompatible enum sizes. */ | |
| 2524 | int no_enum_size_warning; | |
| 2525 | ||
| 2526 | /* Zero to warn when linking objects with incompatible wchar_t sizes. */ | |
| 2527 | int no_wchar_size_warning; | |
| cd702818 SD |
2528 | |
| 2529 | /* All GNU_PROPERTY_AARCH64_FEATURE_1_AND properties. */ | |
| 2530 | uint32_t gnu_and_prop; | |
| 37c18eed SD |
2531 | |
| 2532 | /* Zero to warn when linking objects with incompatible | |
| 2533 | GNU_PROPERTY_AARCH64_FEATURE_1_BTI. */ | |
| 2534 | int no_bti_warn; | |
| 2535 | ||
| 2536 | /* PLT type based on security. */ | |
| 2537 | aarch64_plt_type plt_type; | |
| a06ea964 NC |
2538 | }; |
| 2539 | ||
| 2540 | #define elf_aarch64_tdata(bfd) \ | |
| 2541 | ((struct elf_aarch64_obj_tdata *) (bfd)->tdata.any) | |
| 2542 | ||
| cec5225b | 2543 | #define elf_aarch64_locals(bfd) (elf_aarch64_tdata (bfd)->locals) |
| a06ea964 NC |
2544 | |
| 2545 | #define is_aarch64_elf(bfd) \ | |
| 2546 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 2547 | && elf_tdata (bfd) != NULL \ | |
| 2548 | && elf_object_id (bfd) == AARCH64_ELF_DATA) | |
| 2549 | ||
| 2550 | static bfd_boolean | |
| cec5225b | 2551 | elfNN_aarch64_mkobject (bfd *abfd) |
| a06ea964 NC |
2552 | { |
| 2553 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_aarch64_obj_tdata), | |
| 2554 | AARCH64_ELF_DATA); | |
| 2555 | } | |
| 2556 | ||
| cec5225b YZ |
2557 | #define elf_aarch64_hash_entry(ent) \ |
| 2558 | ((struct elf_aarch64_link_hash_entry *)(ent)) | |
| a06ea964 NC |
2559 | |
| 2560 | #define GOT_UNKNOWN 0 | |
| 2561 | #define GOT_NORMAL 1 | |
| 2562 | #define GOT_TLS_GD 2 | |
| 2563 | #define GOT_TLS_IE 4 | |
| 2564 | #define GOT_TLSDESC_GD 8 | |
| 2565 | ||
| 2566 | #define GOT_TLS_GD_ANY_P(type) ((type & GOT_TLS_GD) || (type & GOT_TLSDESC_GD)) | |
| 2567 | ||
| 2568 | /* AArch64 ELF linker hash entry. */ | |
| cec5225b | 2569 | struct elf_aarch64_link_hash_entry |
| a06ea964 NC |
2570 | { |
| 2571 | struct elf_link_hash_entry root; | |
| 2572 | ||
| 2573 | /* Track dynamic relocs copied for this symbol. */ | |
| 2574 | struct elf_dyn_relocs *dyn_relocs; | |
| 2575 | ||
| a06ea964 NC |
2576 | /* Since PLT entries have variable size, we need to record the |
| 2577 | index into .got.plt instead of recomputing it from the PLT | |
| 2578 | offset. */ | |
| 2579 | bfd_signed_vma plt_got_offset; | |
| 2580 | ||
| 2581 | /* Bit mask representing the type of GOT entry(s) if any required by | |
| 2582 | this symbol. */ | |
| 2583 | unsigned int got_type; | |
| 2584 | ||
| 2585 | /* A pointer to the most recently used stub hash entry against this | |
| 2586 | symbol. */ | |
| cec5225b | 2587 | struct elf_aarch64_stub_hash_entry *stub_cache; |
| a06ea964 NC |
2588 | |
| 2589 | /* Offset of the GOTPLT entry reserved for the TLS descriptor. The offset | |
| 2590 | is from the end of the jump table and reserved entries within the PLTGOT. | |
| 2591 | ||
| 2592 | The magic value (bfd_vma) -1 indicates that an offset has not | |
| 2593 | be allocated. */ | |
| 2594 | bfd_vma tlsdesc_got_jump_table_offset; | |
| 2595 | }; | |
| 2596 | ||
| 2597 | static unsigned int | |
| cec5225b | 2598 | elfNN_aarch64_symbol_got_type (struct elf_link_hash_entry *h, |
| a06ea964 NC |
2599 | bfd *abfd, |
| 2600 | unsigned long r_symndx) | |
| 2601 | { | |
| 2602 | if (h) | |
| cec5225b | 2603 | return elf_aarch64_hash_entry (h)->got_type; |
| a06ea964 | 2604 | |
| cec5225b | 2605 | if (! elf_aarch64_locals (abfd)) |
| a06ea964 NC |
2606 | return GOT_UNKNOWN; |
| 2607 | ||
| cec5225b | 2608 | return elf_aarch64_locals (abfd)[r_symndx].got_type; |
| a06ea964 NC |
2609 | } |
| 2610 | ||
| a06ea964 | 2611 | /* Get the AArch64 elf linker hash table from a link_info structure. */ |
| cec5225b YZ |
2612 | #define elf_aarch64_hash_table(info) \ |
| 2613 | ((struct elf_aarch64_link_hash_table *) ((info)->hash)) | |
| a06ea964 NC |
2614 | |
| 2615 | #define aarch64_stub_hash_lookup(table, string, create, copy) \ | |
| cec5225b | 2616 | ((struct elf_aarch64_stub_hash_entry *) \ |
| a06ea964 NC |
2617 | bfd_hash_lookup ((table), (string), (create), (copy))) |
| 2618 | ||
| 2619 | /* AArch64 ELF linker hash table. */ | |
| cec5225b | 2620 | struct elf_aarch64_link_hash_table |
| a06ea964 NC |
2621 | { |
| 2622 | /* The main hash table. */ | |
| 2623 | struct elf_link_hash_table root; | |
| 2624 | ||
| 2625 | /* Nonzero to force PIC branch veneers. */ | |
| 2626 | int pic_veneer; | |
| 2627 | ||
| 68fcca92 JW |
2628 | /* Fix erratum 835769. */ |
| 2629 | int fix_erratum_835769; | |
| 2630 | ||
| 4106101c | 2631 | /* Fix erratum 843419. */ |
| 739b5c9c | 2632 | erratum_84319_opts fix_erratum_843419; |
| 4106101c | 2633 | |
| 1f56df9d JW |
2634 | /* Don't apply link-time values for dynamic relocations. */ |
| 2635 | int no_apply_dynamic_relocs; | |
| 2636 | ||
| a06ea964 NC |
2637 | /* The number of bytes in the initial entry in the PLT. */ |
| 2638 | bfd_size_type plt_header_size; | |
| 2639 | ||
| 37c18eed SD |
2640 | /* The bytes of the initial PLT entry. */ |
| 2641 | const bfd_byte *plt0_entry; | |
| 2642 | ||
| 2643 | /* The number of bytes in the subsequent PLT entries. */ | |
| a06ea964 NC |
2644 | bfd_size_type plt_entry_size; |
| 2645 | ||
| 37c18eed SD |
2646 | /* The bytes of the subsequent PLT entry. */ |
| 2647 | const bfd_byte *plt_entry; | |
| 2648 | ||
| a06ea964 NC |
2649 | /* Small local sym cache. */ |
| 2650 | struct sym_cache sym_cache; | |
| 2651 | ||
| 2652 | /* For convenience in allocate_dynrelocs. */ | |
| 2653 | bfd *obfd; | |
| 2654 | ||
| 2655 | /* The amount of space used by the reserved portion of the sgotplt | |
| 2656 | section, plus whatever space is used by the jump slots. */ | |
| 2657 | bfd_vma sgotplt_jump_table_size; | |
| 2658 | ||
| 2659 | /* The stub hash table. */ | |
| 2660 | struct bfd_hash_table stub_hash_table; | |
| 2661 | ||
| 2662 | /* Linker stub bfd. */ | |
| 2663 | bfd *stub_bfd; | |
| 2664 | ||
| 2665 | /* Linker call-backs. */ | |
| 2666 | asection *(*add_stub_section) (const char *, asection *); | |
| 2667 | void (*layout_sections_again) (void); | |
| 2668 | ||
| 2669 | /* Array to keep track of which stub sections have been created, and | |
| 2670 | information on stub grouping. */ | |
| 2671 | struct map_stub | |
| 2672 | { | |
| 2673 | /* This is the section to which stubs in the group will be | |
| 2674 | attached. */ | |
| 2675 | asection *link_sec; | |
| 2676 | /* The stub section. */ | |
| 2677 | asection *stub_sec; | |
| 2678 | } *stub_group; | |
| 2679 | ||
| cec5225b | 2680 | /* Assorted information used by elfNN_aarch64_size_stubs. */ |
| a06ea964 | 2681 | unsigned int bfd_count; |
| 7292b3ac | 2682 | unsigned int top_index; |
| a06ea964 NC |
2683 | asection **input_list; |
| 2684 | ||
| 823710d5 SN |
2685 | /* JUMP_SLOT relocs for variant PCS symbols may be present. */ |
| 2686 | int variant_pcs; | |
| 2687 | ||
| a06ea964 NC |
2688 | /* The offset into splt of the PLT entry for the TLS descriptor |
| 2689 | resolver. Special values are 0, if not necessary (or not found | |
| 2690 | to be necessary yet), and -1 if needed but not determined | |
| 2691 | yet. */ | |
| 2692 | bfd_vma tlsdesc_plt; | |
| 2693 | ||
| 37c18eed SD |
2694 | /* The number of bytes in the PLT enty for the TLS descriptor. */ |
| 2695 | bfd_size_type tlsdesc_plt_entry_size; | |
| 2696 | ||
| a06ea964 NC |
2697 | /* The GOT offset for the lazy trampoline. Communicated to the |
| 2698 | loader via DT_TLSDESC_GOT. The magic value (bfd_vma) -1 | |
| 2699 | indicates an offset is not allocated. */ | |
| 2700 | bfd_vma dt_tlsdesc_got; | |
| 1419bbe5 WN |
2701 | |
| 2702 | /* Used by local STT_GNU_IFUNC symbols. */ | |
| 2703 | htab_t loc_hash_table; | |
| 2704 | void * loc_hash_memory; | |
| a06ea964 NC |
2705 | }; |
| 2706 | ||
| a06ea964 NC |
2707 | /* Create an entry in an AArch64 ELF linker hash table. */ |
| 2708 | ||
| 2709 | static struct bfd_hash_entry * | |
| cec5225b | 2710 | elfNN_aarch64_link_hash_newfunc (struct bfd_hash_entry *entry, |
| a06ea964 NC |
2711 | struct bfd_hash_table *table, |
| 2712 | const char *string) | |
| 2713 | { | |
| cec5225b YZ |
2714 | struct elf_aarch64_link_hash_entry *ret = |
| 2715 | (struct elf_aarch64_link_hash_entry *) entry; | |
| a06ea964 NC |
2716 | |
| 2717 | /* Allocate the structure if it has not already been allocated by a | |
| 2718 | subclass. */ | |
| 2719 | if (ret == NULL) | |
| 2720 | ret = bfd_hash_allocate (table, | |
| cec5225b | 2721 | sizeof (struct elf_aarch64_link_hash_entry)); |
| a06ea964 NC |
2722 | if (ret == NULL) |
| 2723 | return (struct bfd_hash_entry *) ret; | |
| 2724 | ||
| 2725 | /* Call the allocation method of the superclass. */ | |
| cec5225b | 2726 | ret = ((struct elf_aarch64_link_hash_entry *) |
| a06ea964 NC |
2727 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
| 2728 | table, string)); | |
| 2729 | if (ret != NULL) | |
| 2730 | { | |
| 2731 | ret->dyn_relocs = NULL; | |
| a06ea964 NC |
2732 | ret->got_type = GOT_UNKNOWN; |
| 2733 | ret->plt_got_offset = (bfd_vma) - 1; | |
| 2734 | ret->stub_cache = NULL; | |
| 2735 | ret->tlsdesc_got_jump_table_offset = (bfd_vma) - 1; | |
| 2736 | } | |
| 2737 | ||
| 2738 | return (struct bfd_hash_entry *) ret; | |
| 2739 | } | |
| 2740 | ||
| 2741 | /* Initialize an entry in the stub hash table. */ | |
| 2742 | ||
| 2743 | static struct bfd_hash_entry * | |
| 2744 | stub_hash_newfunc (struct bfd_hash_entry *entry, | |
| 2745 | struct bfd_hash_table *table, const char *string) | |
| 2746 | { | |
| 2747 | /* Allocate the structure if it has not already been allocated by a | |
| 2748 | subclass. */ | |
| 2749 | if (entry == NULL) | |
| 2750 | { | |
| 2751 | entry = bfd_hash_allocate (table, | |
| 2752 | sizeof (struct | |
| cec5225b | 2753 | elf_aarch64_stub_hash_entry)); |
| a06ea964 NC |
2754 | if (entry == NULL) |
| 2755 | return entry; | |
| 2756 | } | |
| 2757 | ||
| 2758 | /* Call the allocation method of the superclass. */ | |
| 2759 | entry = bfd_hash_newfunc (entry, table, string); | |
| 2760 | if (entry != NULL) | |
| 2761 | { | |
| cec5225b | 2762 | struct elf_aarch64_stub_hash_entry *eh; |
| a06ea964 NC |
2763 | |
| 2764 | /* Initialize the local fields. */ | |
| cec5225b | 2765 | eh = (struct elf_aarch64_stub_hash_entry *) entry; |
| 4106101c | 2766 | eh->adrp_offset = 0; |
| a06ea964 NC |
2767 | eh->stub_sec = NULL; |
| 2768 | eh->stub_offset = 0; | |
| 2769 | eh->target_value = 0; | |
| 2770 | eh->target_section = NULL; | |
| 2771 | eh->stub_type = aarch64_stub_none; | |
| 2772 | eh->h = NULL; | |
| 2773 | eh->id_sec = NULL; | |
| 2774 | } | |
| 2775 | ||
| 2776 | return entry; | |
| 2777 | } | |
| 2778 | ||
| 1419bbe5 WN |
2779 | /* Compute a hash of a local hash entry. We use elf_link_hash_entry |
| 2780 | for local symbol so that we can handle local STT_GNU_IFUNC symbols | |
| 2781 | as global symbol. We reuse indx and dynstr_index for local symbol | |
| 2782 | hash since they aren't used by global symbols in this backend. */ | |
| 2783 | ||
| 2784 | static hashval_t | |
| 2785 | elfNN_aarch64_local_htab_hash (const void *ptr) | |
| 2786 | { | |
| 2787 | struct elf_link_hash_entry *h | |
| 2788 | = (struct elf_link_hash_entry *) ptr; | |
| 2789 | return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index); | |
| 2790 | } | |
| 2791 | ||
| 2792 | /* Compare local hash entries. */ | |
| 2793 | ||
| 2794 | static int | |
| 2795 | elfNN_aarch64_local_htab_eq (const void *ptr1, const void *ptr2) | |
| 2796 | { | |
| 2797 | struct elf_link_hash_entry *h1 | |
| 2798 | = (struct elf_link_hash_entry *) ptr1; | |
| 2799 | struct elf_link_hash_entry *h2 | |
| 2800 | = (struct elf_link_hash_entry *) ptr2; | |
| 2801 | ||
| 2802 | return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index; | |
| 2803 | } | |
| 2804 | ||
| 2805 | /* Find and/or create a hash entry for local symbol. */ | |
| 2806 | ||
| 2807 | static struct elf_link_hash_entry * | |
| 2808 | elfNN_aarch64_get_local_sym_hash (struct elf_aarch64_link_hash_table *htab, | |
| 2809 | bfd *abfd, const Elf_Internal_Rela *rel, | |
| 2810 | bfd_boolean create) | |
| 2811 | { | |
| 2812 | struct elf_aarch64_link_hash_entry e, *ret; | |
| 2813 | asection *sec = abfd->sections; | |
| 2814 | hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id, | |
| 2815 | ELFNN_R_SYM (rel->r_info)); | |
| 2816 | void **slot; | |
| 2817 | ||
| 2818 | e.root.indx = sec->id; | |
| 2819 | e.root.dynstr_index = ELFNN_R_SYM (rel->r_info); | |
| 2820 | slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h, | |
| 2821 | create ? INSERT : NO_INSERT); | |
| 2822 | ||
| 2823 | if (!slot) | |
| 2824 | return NULL; | |
| 2825 | ||
| 2826 | if (*slot) | |
| 2827 | { | |
| 2828 | ret = (struct elf_aarch64_link_hash_entry *) *slot; | |
| 2829 | return &ret->root; | |
| 2830 | } | |
| 2831 | ||
| 2832 | ret = (struct elf_aarch64_link_hash_entry *) | |
| 2833 | objalloc_alloc ((struct objalloc *) htab->loc_hash_memory, | |
| 2834 | sizeof (struct elf_aarch64_link_hash_entry)); | |
| 2835 | if (ret) | |
| 2836 | { | |
| 2837 | memset (ret, 0, sizeof (*ret)); | |
| 2838 | ret->root.indx = sec->id; | |
| 2839 | ret->root.dynstr_index = ELFNN_R_SYM (rel->r_info); | |
| 2840 | ret->root.dynindx = -1; | |
| 2841 | *slot = ret; | |
| 2842 | } | |
| 2843 | return &ret->root; | |
| 2844 | } | |
| a06ea964 NC |
2845 | |
| 2846 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
| 2847 | ||
| 2848 | static void | |
| cec5225b | 2849 | elfNN_aarch64_copy_indirect_symbol (struct bfd_link_info *info, |
| a06ea964 NC |
2850 | struct elf_link_hash_entry *dir, |
| 2851 | struct elf_link_hash_entry *ind) | |
| 2852 | { | |
| cec5225b | 2853 | struct elf_aarch64_link_hash_entry *edir, *eind; |
| a06ea964 | 2854 | |
| cec5225b YZ |
2855 | edir = (struct elf_aarch64_link_hash_entry *) dir; |
| 2856 | eind = (struct elf_aarch64_link_hash_entry *) ind; | |
| a06ea964 NC |
2857 | |
| 2858 | if (eind->dyn_relocs != NULL) | |
| 2859 | { | |
| 2860 | if (edir->dyn_relocs != NULL) | |
| 2861 | { | |
| 2862 | struct elf_dyn_relocs **pp; | |
| 2863 | struct elf_dyn_relocs *p; | |
| 2864 | ||
| 2865 | /* Add reloc counts against the indirect sym to the direct sym | |
| 2866 | list. Merge any entries against the same section. */ | |
| 2867 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) | |
| 2868 | { | |
| 2869 | struct elf_dyn_relocs *q; | |
| 2870 | ||
| 2871 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 2872 | if (q->sec == p->sec) | |
| 2873 | { | |
| 2874 | q->pc_count += p->pc_count; | |
| 2875 | q->count += p->count; | |
| 2876 | *pp = p->next; | |
| 2877 | break; | |
| 2878 | } | |
| 2879 | if (q == NULL) | |
| 2880 | pp = &p->next; | |
| 2881 | } | |
| 2882 | *pp = edir->dyn_relocs; | |
| 2883 | } | |
| 2884 | ||
| 2885 | edir->dyn_relocs = eind->dyn_relocs; | |
| 2886 | eind->dyn_relocs = NULL; | |
| 2887 | } | |
| 2888 | ||
| a06ea964 NC |
2889 | if (ind->root.type == bfd_link_hash_indirect) |
| 2890 | { | |
| 2891 | /* Copy over PLT info. */ | |
| 2892 | if (dir->got.refcount <= 0) | |
| 2893 | { | |
| 2894 | edir->got_type = eind->got_type; | |
| 2895 | eind->got_type = GOT_UNKNOWN; | |
| 2896 | } | |
| 2897 | } | |
| 2898 | ||
| 2899 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
| 2900 | } | |
| 2901 | ||
| 823710d5 SN |
2902 | /* Merge non-visibility st_other attributes. */ |
| 2903 | ||
| 2904 | static void | |
| 2905 | elfNN_aarch64_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 2906 | const Elf_Internal_Sym *isym, | |
| 2907 | bfd_boolean definition ATTRIBUTE_UNUSED, | |
| 2908 | bfd_boolean dynamic ATTRIBUTE_UNUSED) | |
| 2909 | { | |
| 2910 | unsigned int isym_sto = isym->st_other & ~ELF_ST_VISIBILITY (-1); | |
| 2911 | unsigned int h_sto = h->other & ~ELF_ST_VISIBILITY (-1); | |
| 2912 | ||
| 2913 | if (isym_sto == h_sto) | |
| 2914 | return; | |
| 2915 | ||
| 2916 | if (isym_sto & ~STO_AARCH64_VARIANT_PCS) | |
| 2917 | /* Not fatal, this callback cannot fail. */ | |
| 2918 | _bfd_error_handler (_("unknown attribute for symbol `%s': 0x%02x"), | |
| 2919 | h->root.root.string, isym_sto); | |
| 2920 | ||
| 2921 | /* Note: Ideally we would warn about any attribute mismatch, but | |
| 2922 | this api does not allow that without substantial changes. */ | |
| 2923 | if (isym_sto & STO_AARCH64_VARIANT_PCS) | |
| 2924 | h->other |= STO_AARCH64_VARIANT_PCS; | |
| 2925 | } | |
| 2926 | ||
| 68faa637 AM |
2927 | /* Destroy an AArch64 elf linker hash table. */ |
| 2928 | ||
| 2929 | static void | |
| d495ab0d | 2930 | elfNN_aarch64_link_hash_table_free (bfd *obfd) |
| 68faa637 AM |
2931 | { |
| 2932 | struct elf_aarch64_link_hash_table *ret | |
| d495ab0d | 2933 | = (struct elf_aarch64_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
2934 | |
| 2935 | if (ret->loc_hash_table) | |
| 2936 | htab_delete (ret->loc_hash_table); | |
| 2937 | if (ret->loc_hash_memory) | |
| 2938 | objalloc_free ((struct objalloc *) ret->loc_hash_memory); | |
| 2939 | ||
| 2940 | bfd_hash_table_free (&ret->stub_hash_table); | |
| d495ab0d | 2941 | _bfd_elf_link_hash_table_free (obfd); |
| 68faa637 AM |
2942 | } |
| 2943 | ||
| a06ea964 NC |
2944 | /* Create an AArch64 elf linker hash table. */ |
| 2945 | ||
| 2946 | static struct bfd_link_hash_table * | |
| cec5225b | 2947 | elfNN_aarch64_link_hash_table_create (bfd *abfd) |
| a06ea964 | 2948 | { |
| cec5225b | 2949 | struct elf_aarch64_link_hash_table *ret; |
| 986f0783 | 2950 | size_t amt = sizeof (struct elf_aarch64_link_hash_table); |
| a06ea964 | 2951 | |
| 7bf52ea2 | 2952 | ret = bfd_zmalloc (amt); |
| a06ea964 NC |
2953 | if (ret == NULL) |
| 2954 | return NULL; | |
| 2955 | ||
| 2956 | if (!_bfd_elf_link_hash_table_init | |
| cec5225b YZ |
2957 | (&ret->root, abfd, elfNN_aarch64_link_hash_newfunc, |
| 2958 | sizeof (struct elf_aarch64_link_hash_entry), AARCH64_ELF_DATA)) | |
| a06ea964 NC |
2959 | { |
| 2960 | free (ret); | |
| 2961 | return NULL; | |
| 2962 | } | |
| 2963 | ||
| a06ea964 | 2964 | ret->plt_header_size = PLT_ENTRY_SIZE; |
| 37c18eed | 2965 | ret->plt0_entry = elfNN_aarch64_small_plt0_entry; |
| a06ea964 | 2966 | ret->plt_entry_size = PLT_SMALL_ENTRY_SIZE; |
| 37c18eed SD |
2967 | ret->plt_entry = elfNN_aarch64_small_plt_entry; |
| 2968 | ret->tlsdesc_plt_entry_size = PLT_TLSDESC_ENTRY_SIZE; | |
| a06ea964 | 2969 | ret->obfd = abfd; |
| a06ea964 NC |
2970 | ret->dt_tlsdesc_got = (bfd_vma) - 1; |
| 2971 | ||
| 2972 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc, | |
| cec5225b | 2973 | sizeof (struct elf_aarch64_stub_hash_entry))) |
| a06ea964 | 2974 | { |
| d495ab0d | 2975 | _bfd_elf_link_hash_table_free (abfd); |
| a06ea964 NC |
2976 | return NULL; |
| 2977 | } | |
| 2978 | ||
| 1419bbe5 WN |
2979 | ret->loc_hash_table = htab_try_create (1024, |
| 2980 | elfNN_aarch64_local_htab_hash, | |
| 2981 | elfNN_aarch64_local_htab_eq, | |
| 2982 | NULL); | |
| 2983 | ret->loc_hash_memory = objalloc_create (); | |
| 2984 | if (!ret->loc_hash_table || !ret->loc_hash_memory) | |
| 2985 | { | |
| d495ab0d | 2986 | elfNN_aarch64_link_hash_table_free (abfd); |
| 1419bbe5 WN |
2987 | return NULL; |
| 2988 | } | |
| d495ab0d | 2989 | ret->root.root.hash_table_free = elfNN_aarch64_link_hash_table_free; |
| 1419bbe5 | 2990 | |
| a06ea964 NC |
2991 | return &ret->root.root; |
| 2992 | } | |
| 2993 | ||
| 1d75a8e2 NC |
2994 | /* Perform relocation R_TYPE. Returns TRUE upon success, FALSE otherwise. */ |
| 2995 | ||
| a06ea964 NC |
2996 | static bfd_boolean |
| 2997 | aarch64_relocate (unsigned int r_type, bfd *input_bfd, asection *input_section, | |
| 2998 | bfd_vma offset, bfd_vma value) | |
| 2999 | { | |
| 3000 | reloc_howto_type *howto; | |
| 3001 | bfd_vma place; | |
| 3002 | ||
| 0aa13fee | 3003 | howto = elfNN_aarch64_howto_from_type (input_bfd, r_type); |
| a06ea964 NC |
3004 | place = (input_section->output_section->vma + input_section->output_offset |
| 3005 | + offset); | |
| caed7120 | 3006 | |
| 0aa13fee | 3007 | r_type = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| 652afeef TC |
3008 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, r_type, place, |
| 3009 | value, 0, FALSE); | |
| caed7120 YZ |
3010 | return _bfd_aarch64_elf_put_addend (input_bfd, |
| 3011 | input_section->contents + offset, r_type, | |
| 1d75a8e2 | 3012 | howto, value) == bfd_reloc_ok; |
| a06ea964 NC |
3013 | } |
| 3014 | ||
| cec5225b | 3015 | static enum elf_aarch64_stub_type |
| a06ea964 NC |
3016 | aarch64_select_branch_stub (bfd_vma value, bfd_vma place) |
| 3017 | { | |
| 3018 | if (aarch64_valid_for_adrp_p (value, place)) | |
| 3019 | return aarch64_stub_adrp_branch; | |
| 3020 | return aarch64_stub_long_branch; | |
| 3021 | } | |
| 3022 | ||
| 3023 | /* Determine the type of stub needed, if any, for a call. */ | |
| 3024 | ||
| cec5225b | 3025 | static enum elf_aarch64_stub_type |
| 9a228467 | 3026 | aarch64_type_of_stub (asection *input_sec, |
| a06ea964 | 3027 | const Elf_Internal_Rela *rel, |
| f678ded7 | 3028 | asection *sym_sec, |
| a06ea964 | 3029 | unsigned char st_type, |
| a06ea964 NC |
3030 | bfd_vma destination) |
| 3031 | { | |
| 3032 | bfd_vma location; | |
| 3033 | bfd_signed_vma branch_offset; | |
| 3034 | unsigned int r_type; | |
| cec5225b | 3035 | enum elf_aarch64_stub_type stub_type = aarch64_stub_none; |
| a06ea964 | 3036 | |
| f678ded7 | 3037 | if (st_type != STT_FUNC |
| 2f340668 | 3038 | && (sym_sec == input_sec)) |
| a06ea964 NC |
3039 | return stub_type; |
| 3040 | ||
| a06ea964 NC |
3041 | /* Determine where the call point is. */ |
| 3042 | location = (input_sec->output_offset | |
| 3043 | + input_sec->output_section->vma + rel->r_offset); | |
| 3044 | ||
| 3045 | branch_offset = (bfd_signed_vma) (destination - location); | |
| 3046 | ||
| cec5225b | 3047 | r_type = ELFNN_R_TYPE (rel->r_info); |
| a06ea964 NC |
3048 | |
| 3049 | /* We don't want to redirect any old unconditional jump in this way, | |
| 3050 | only one which is being used for a sibcall, where it is | |
| 3051 | acceptable for the IP0 and IP1 registers to be clobbered. */ | |
| a6bb11b2 | 3052 | if ((r_type == AARCH64_R (CALL26) || r_type == AARCH64_R (JUMP26)) |
| a06ea964 NC |
3053 | && (branch_offset > AARCH64_MAX_FWD_BRANCH_OFFSET |
| 3054 | || branch_offset < AARCH64_MAX_BWD_BRANCH_OFFSET)) | |
| 3055 | { | |
| 3056 | stub_type = aarch64_stub_long_branch; | |
| 3057 | } | |
| 3058 | ||
| 3059 | return stub_type; | |
| 3060 | } | |
| 3061 | ||
| 3062 | /* Build a name for an entry in the stub hash table. */ | |
| 3063 | ||
| 3064 | static char * | |
| cec5225b | 3065 | elfNN_aarch64_stub_name (const asection *input_section, |
| a06ea964 | 3066 | const asection *sym_sec, |
| cec5225b | 3067 | const struct elf_aarch64_link_hash_entry *hash, |
| a06ea964 NC |
3068 | const Elf_Internal_Rela *rel) |
| 3069 | { | |
| 3070 | char *stub_name; | |
| 3071 | bfd_size_type len; | |
| 3072 | ||
| 3073 | if (hash) | |
| 3074 | { | |
| 3075 | len = 8 + 1 + strlen (hash->root.root.root.string) + 1 + 16 + 1; | |
| 3076 | stub_name = bfd_malloc (len); | |
| 3077 | if (stub_name != NULL) | |
| 3078 | snprintf (stub_name, len, "%08x_%s+%" BFD_VMA_FMT "x", | |
| 3079 | (unsigned int) input_section->id, | |
| 3080 | hash->root.root.root.string, | |
| 3081 | rel->r_addend); | |
| 3082 | } | |
| 3083 | else | |
| 3084 | { | |
| 3085 | len = 8 + 1 + 8 + 1 + 8 + 1 + 16 + 1; | |
| 3086 | stub_name = bfd_malloc (len); | |
| 3087 | if (stub_name != NULL) | |
| 3088 | snprintf (stub_name, len, "%08x_%x:%x+%" BFD_VMA_FMT "x", | |
| 3089 | (unsigned int) input_section->id, | |
| 3090 | (unsigned int) sym_sec->id, | |
| cec5225b | 3091 | (unsigned int) ELFNN_R_SYM (rel->r_info), |
| a06ea964 NC |
3092 | rel->r_addend); |
| 3093 | } | |
| 3094 | ||
| 3095 | return stub_name; | |
| 3096 | } | |
| 3097 | ||
| 7f784814 JW |
3098 | /* Return TRUE if symbol H should be hashed in the `.gnu.hash' section. For |
| 3099 | executable PLT slots where the executable never takes the address of those | |
| 3100 | functions, the function symbols are not added to the hash table. */ | |
| 3101 | ||
| 3102 | static bfd_boolean | |
| 3103 | elf_aarch64_hash_symbol (struct elf_link_hash_entry *h) | |
| 3104 | { | |
| 3105 | if (h->plt.offset != (bfd_vma) -1 | |
| 3106 | && !h->def_regular | |
| 3107 | && !h->pointer_equality_needed) | |
| 3108 | return FALSE; | |
| 3109 | ||
| 3110 | return _bfd_elf_hash_symbol (h); | |
| 3111 | } | |
| 3112 | ||
| 3113 | ||
| a06ea964 NC |
3114 | /* Look up an entry in the stub hash. Stub entries are cached because |
| 3115 | creating the stub name takes a bit of time. */ | |
| 3116 | ||
| cec5225b YZ |
3117 | static struct elf_aarch64_stub_hash_entry * |
| 3118 | elfNN_aarch64_get_stub_entry (const asection *input_section, | |
| a06ea964 NC |
3119 | const asection *sym_sec, |
| 3120 | struct elf_link_hash_entry *hash, | |
| 3121 | const Elf_Internal_Rela *rel, | |
| cec5225b | 3122 | struct elf_aarch64_link_hash_table *htab) |
| a06ea964 | 3123 | { |
| cec5225b YZ |
3124 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| 3125 | struct elf_aarch64_link_hash_entry *h = | |
| 3126 | (struct elf_aarch64_link_hash_entry *) hash; | |
| a06ea964 NC |
3127 | const asection *id_sec; |
| 3128 | ||
| 3129 | if ((input_section->flags & SEC_CODE) == 0) | |
| 3130 | return NULL; | |
| 3131 | ||
| 3132 | /* If this input section is part of a group of sections sharing one | |
| 3133 | stub section, then use the id of the first section in the group. | |
| 3134 | Stub names need to include a section id, as there may well be | |
| 3135 | more than one stub used to reach say, printf, and we need to | |
| 3136 | distinguish between them. */ | |
| 3137 | id_sec = htab->stub_group[input_section->id].link_sec; | |
| 3138 | ||
| 3139 | if (h != NULL && h->stub_cache != NULL | |
| 3140 | && h->stub_cache->h == h && h->stub_cache->id_sec == id_sec) | |
| 3141 | { | |
| 3142 | stub_entry = h->stub_cache; | |
| 3143 | } | |
| 3144 | else | |
| 3145 | { | |
| 3146 | char *stub_name; | |
| 3147 | ||
| cec5225b | 3148 | stub_name = elfNN_aarch64_stub_name (id_sec, sym_sec, h, rel); |
| a06ea964 NC |
3149 | if (stub_name == NULL) |
| 3150 | return NULL; | |
| 3151 | ||
| 3152 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, | |
| 3153 | stub_name, FALSE, FALSE); | |
| 3154 | if (h != NULL) | |
| 3155 | h->stub_cache = stub_entry; | |
| 3156 | ||
| 3157 | free (stub_name); | |
| 3158 | } | |
| 3159 | ||
| 3160 | return stub_entry; | |
| 3161 | } | |
| 3162 | ||
| a06ea964 | 3163 | |
| 66585675 MS |
3164 | /* Create a stub section. */ |
| 3165 | ||
| 3166 | static asection * | |
| 3167 | _bfd_aarch64_create_stub_section (asection *section, | |
| 3168 | struct elf_aarch64_link_hash_table *htab) | |
| 3169 | { | |
| 3170 | size_t namelen; | |
| 3171 | bfd_size_type len; | |
| 3172 | char *s_name; | |
| 3173 | ||
| 3174 | namelen = strlen (section->name); | |
| 3175 | len = namelen + sizeof (STUB_SUFFIX); | |
| 3176 | s_name = bfd_alloc (htab->stub_bfd, len); | |
| 3177 | if (s_name == NULL) | |
| 3178 | return NULL; | |
| 3179 | ||
| 3180 | memcpy (s_name, section->name, namelen); | |
| 3181 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 3182 | return (*htab->add_stub_section) (s_name, section); | |
| 3183 | } | |
| 3184 | ||
| 3185 | ||
| fc6d53be MS |
3186 | /* Find or create a stub section for a link section. |
| 3187 | ||
| 3188 | Fix or create the stub section used to collect stubs attached to | |
| 3189 | the specified link section. */ | |
| 3190 | ||
| 3191 | static asection * | |
| 3192 | _bfd_aarch64_get_stub_for_link_section (asection *link_section, | |
| 3193 | struct elf_aarch64_link_hash_table *htab) | |
| 3194 | { | |
| 3195 | if (htab->stub_group[link_section->id].stub_sec == NULL) | |
| 3196 | htab->stub_group[link_section->id].stub_sec | |
| 3197 | = _bfd_aarch64_create_stub_section (link_section, htab); | |
| 3198 | return htab->stub_group[link_section->id].stub_sec; | |
| 3199 | } | |
| 3200 | ||
| 3201 | ||
| ef857521 MS |
3202 | /* Find or create a stub section in the stub group for an input |
| 3203 | section. */ | |
| 3204 | ||
| 3205 | static asection * | |
| 3206 | _bfd_aarch64_create_or_find_stub_sec (asection *section, | |
| 3207 | struct elf_aarch64_link_hash_table *htab) | |
| a06ea964 | 3208 | { |
| fc6d53be MS |
3209 | asection *link_sec = htab->stub_group[section->id].link_sec; |
| 3210 | return _bfd_aarch64_get_stub_for_link_section (link_sec, htab); | |
| ef857521 MS |
3211 | } |
| 3212 | ||
| 3213 | ||
| 3214 | /* Add a new stub entry in the stub group associated with an input | |
| 3215 | section to the stub hash. Not all fields of the new stub entry are | |
| 3216 | initialised. */ | |
| 3217 | ||
| 3218 | static struct elf_aarch64_stub_hash_entry * | |
| 3219 | _bfd_aarch64_add_stub_entry_in_group (const char *stub_name, | |
| 3220 | asection *section, | |
| 3221 | struct elf_aarch64_link_hash_table *htab) | |
| 3222 | { | |
| 3223 | asection *link_sec; | |
| 3224 | asection *stub_sec; | |
| 3225 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 3226 | ||
| 3227 | link_sec = htab->stub_group[section->id].link_sec; | |
| 3228 | stub_sec = _bfd_aarch64_create_or_find_stub_sec (section, htab); | |
| 3229 | ||
| a06ea964 NC |
3230 | /* Enter this entry into the linker stub hash table. */ |
| 3231 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| 3232 | TRUE, FALSE); | |
| 3233 | if (stub_entry == NULL) | |
| 3234 | { | |
| 695344c0 | 3235 | /* xgettext:c-format */ |
| 871b3ab2 | 3236 | _bfd_error_handler (_("%pB: cannot create stub entry %s"), |
| 4eca0228 | 3237 | section->owner, stub_name); |
| a06ea964 NC |
3238 | return NULL; |
| 3239 | } | |
| 3240 | ||
| 3241 | stub_entry->stub_sec = stub_sec; | |
| 3242 | stub_entry->stub_offset = 0; | |
| 3243 | stub_entry->id_sec = link_sec; | |
| 3244 | ||
| 3245 | return stub_entry; | |
| 3246 | } | |
| 3247 | ||
| 4106101c MS |
3248 | /* Add a new stub entry in the final stub section to the stub hash. |
| 3249 | Not all fields of the new stub entry are initialised. */ | |
| 3250 | ||
| 3251 | static struct elf_aarch64_stub_hash_entry * | |
| 3252 | _bfd_aarch64_add_stub_entry_after (const char *stub_name, | |
| 3253 | asection *link_section, | |
| 3254 | struct elf_aarch64_link_hash_table *htab) | |
| 3255 | { | |
| 3256 | asection *stub_sec; | |
| 3257 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 3258 | ||
| 739b5c9c TC |
3259 | stub_sec = NULL; |
| 3260 | /* Only create the actual stub if we will end up needing it. */ | |
| 3261 | if (htab->fix_erratum_843419 & ERRAT_ADRP) | |
| 3262 | stub_sec = _bfd_aarch64_get_stub_for_link_section (link_section, htab); | |
| 4106101c MS |
3263 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
| 3264 | TRUE, FALSE); | |
| 3265 | if (stub_entry == NULL) | |
| 3266 | { | |
| 4eca0228 | 3267 | _bfd_error_handler (_("cannot create stub entry %s"), stub_name); |
| 4106101c MS |
3268 | return NULL; |
| 3269 | } | |
| 3270 | ||
| 3271 | stub_entry->stub_sec = stub_sec; | |
| 3272 | stub_entry->stub_offset = 0; | |
| 3273 | stub_entry->id_sec = link_section; | |
| 3274 | ||
| 3275 | return stub_entry; | |
| 3276 | } | |
| 3277 | ||
| 3278 | ||
| a06ea964 NC |
3279 | static bfd_boolean |
| 3280 | aarch64_build_one_stub (struct bfd_hash_entry *gen_entry, | |
| 3281 | void *in_arg ATTRIBUTE_UNUSED) | |
| 3282 | { | |
| cec5225b | 3283 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| a06ea964 NC |
3284 | asection *stub_sec; |
| 3285 | bfd *stub_bfd; | |
| 3286 | bfd_byte *loc; | |
| 3287 | bfd_vma sym_value; | |
| 68fcca92 JW |
3288 | bfd_vma veneered_insn_loc; |
| 3289 | bfd_vma veneer_entry_loc; | |
| 3290 | bfd_signed_vma branch_offset = 0; | |
| a06ea964 NC |
3291 | unsigned int template_size; |
| 3292 | const uint32_t *template; | |
| 3293 | unsigned int i; | |
| 3294 | ||
| 3295 | /* Massage our args to the form they really have. */ | |
| cec5225b | 3296 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; |
| a06ea964 NC |
3297 | |
| 3298 | stub_sec = stub_entry->stub_sec; | |
| 3299 | ||
| 3300 | /* Make a note of the offset within the stubs for this entry. */ | |
| 3301 | stub_entry->stub_offset = stub_sec->size; | |
| 3302 | loc = stub_sec->contents + stub_entry->stub_offset; | |
| 3303 | ||
| 3304 | stub_bfd = stub_sec->owner; | |
| 3305 | ||
| 3306 | /* This is the address of the stub destination. */ | |
| 3307 | sym_value = (stub_entry->target_value | |
| 3308 | + stub_entry->target_section->output_offset | |
| 3309 | + stub_entry->target_section->output_section->vma); | |
| 3310 | ||
| 3311 | if (stub_entry->stub_type == aarch64_stub_long_branch) | |
| 3312 | { | |
| 3313 | bfd_vma place = (stub_entry->stub_offset + stub_sec->output_section->vma | |
| 3314 | + stub_sec->output_offset); | |
| 3315 | ||
| 3316 | /* See if we can relax the stub. */ | |
| 3317 | if (aarch64_valid_for_adrp_p (sym_value, place)) | |
| 3318 | stub_entry->stub_type = aarch64_select_branch_stub (sym_value, place); | |
| 3319 | } | |
| 3320 | ||
| 3321 | switch (stub_entry->stub_type) | |
| 3322 | { | |
| 3323 | case aarch64_stub_adrp_branch: | |
| 3324 | template = aarch64_adrp_branch_stub; | |
| 3325 | template_size = sizeof (aarch64_adrp_branch_stub); | |
| 3326 | break; | |
| 3327 | case aarch64_stub_long_branch: | |
| 3328 | template = aarch64_long_branch_stub; | |
| 3329 | template_size = sizeof (aarch64_long_branch_stub); | |
| 3330 | break; | |
| 68fcca92 JW |
3331 | case aarch64_stub_erratum_835769_veneer: |
| 3332 | template = aarch64_erratum_835769_stub; | |
| 3333 | template_size = sizeof (aarch64_erratum_835769_stub); | |
| 3334 | break; | |
| 4106101c MS |
3335 | case aarch64_stub_erratum_843419_veneer: |
| 3336 | template = aarch64_erratum_843419_stub; | |
| 3337 | template_size = sizeof (aarch64_erratum_843419_stub); | |
| 3338 | break; | |
| a06ea964 | 3339 | default: |
| 8e2fe09f | 3340 | abort (); |
| a06ea964 NC |
3341 | } |
| 3342 | ||
| 3343 | for (i = 0; i < (template_size / sizeof template[0]); i++) | |
| 3344 | { | |
| 3345 | bfd_putl32 (template[i], loc); | |
| 3346 | loc += 4; | |
| 3347 | } | |
| 3348 | ||
| 3349 | template_size = (template_size + 7) & ~7; | |
| 3350 | stub_sec->size += template_size; | |
| 3351 | ||
| 3352 | switch (stub_entry->stub_type) | |
| 3353 | { | |
| 3354 | case aarch64_stub_adrp_branch: | |
| 1d75a8e2 NC |
3355 | if (!aarch64_relocate (AARCH64_R (ADR_PREL_PG_HI21), stub_bfd, stub_sec, |
| 3356 | stub_entry->stub_offset, sym_value)) | |
| a06ea964 NC |
3357 | /* The stub would not have been relaxed if the offset was out |
| 3358 | of range. */ | |
| 3359 | BFD_FAIL (); | |
| 3360 | ||
| 1d75a8e2 NC |
3361 | if (!aarch64_relocate (AARCH64_R (ADD_ABS_LO12_NC), stub_bfd, stub_sec, |
| 3362 | stub_entry->stub_offset + 4, sym_value)) | |
| 93ca8569 | 3363 | BFD_FAIL (); |
| a06ea964 NC |
3364 | break; |
| 3365 | ||
| 3366 | case aarch64_stub_long_branch: | |
| 3367 | /* We want the value relative to the address 12 bytes back from the | |
| 07d6d2b8 | 3368 | value itself. */ |
| 1d75a8e2 NC |
3369 | if (!aarch64_relocate (AARCH64_R (PRELNN), stub_bfd, stub_sec, |
| 3370 | stub_entry->stub_offset + 16, sym_value + 12)) | |
| 93ca8569 | 3371 | BFD_FAIL (); |
| a06ea964 | 3372 | break; |
| 68fcca92 JW |
3373 | |
| 3374 | case aarch64_stub_erratum_835769_veneer: | |
| 3375 | veneered_insn_loc = stub_entry->target_section->output_section->vma | |
| 3376 | + stub_entry->target_section->output_offset | |
| 3377 | + stub_entry->target_value; | |
| 3378 | veneer_entry_loc = stub_entry->stub_sec->output_section->vma | |
| 3379 | + stub_entry->stub_sec->output_offset | |
| 3380 | + stub_entry->stub_offset; | |
| 3381 | branch_offset = veneered_insn_loc - veneer_entry_loc; | |
| 3382 | branch_offset >>= 2; | |
| 3383 | branch_offset &= 0x3ffffff; | |
| 3384 | bfd_putl32 (stub_entry->veneered_insn, | |
| 3385 | stub_sec->contents + stub_entry->stub_offset); | |
| 3386 | bfd_putl32 (template[1] | branch_offset, | |
| 3387 | stub_sec->contents + stub_entry->stub_offset + 4); | |
| 3388 | break; | |
| 3389 | ||
| 4106101c | 3390 | case aarch64_stub_erratum_843419_veneer: |
| 1d75a8e2 NC |
3391 | if (!aarch64_relocate (AARCH64_R (JUMP26), stub_bfd, stub_sec, |
| 3392 | stub_entry->stub_offset + 4, sym_value + 4)) | |
| 4106101c MS |
3393 | BFD_FAIL (); |
| 3394 | break; | |
| 3395 | ||
| a06ea964 | 3396 | default: |
| 8e2fe09f | 3397 | abort (); |
| a06ea964 NC |
3398 | } |
| 3399 | ||
| 3400 | return TRUE; | |
| 3401 | } | |
| 3402 | ||
| 3403 | /* As above, but don't actually build the stub. Just bump offset so | |
| 3404 | we know stub section sizes. */ | |
| 3405 | ||
| 3406 | static bfd_boolean | |
| 739b5c9c | 3407 | aarch64_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| a06ea964 | 3408 | { |
| cec5225b | 3409 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| 739b5c9c | 3410 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 NC |
3411 | int size; |
| 3412 | ||
| 3413 | /* Massage our args to the form they really have. */ | |
| cec5225b | 3414 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; |
| 739b5c9c | 3415 | htab = (struct elf_aarch64_link_hash_table *) in_arg; |
| a06ea964 NC |
3416 | |
| 3417 | switch (stub_entry->stub_type) | |
| 3418 | { | |
| 3419 | case aarch64_stub_adrp_branch: | |
| 3420 | size = sizeof (aarch64_adrp_branch_stub); | |
| 3421 | break; | |
| 3422 | case aarch64_stub_long_branch: | |
| 3423 | size = sizeof (aarch64_long_branch_stub); | |
| 3424 | break; | |
| 68fcca92 JW |
3425 | case aarch64_stub_erratum_835769_veneer: |
| 3426 | size = sizeof (aarch64_erratum_835769_stub); | |
| 3427 | break; | |
| 4106101c | 3428 | case aarch64_stub_erratum_843419_veneer: |
| 739b5c9c TC |
3429 | { |
| 3430 | if (htab->fix_erratum_843419 == ERRAT_ADR) | |
| 3431 | return TRUE; | |
| 3432 | size = sizeof (aarch64_erratum_843419_stub); | |
| 3433 | } | |
| 4106101c | 3434 | break; |
| a06ea964 | 3435 | default: |
| 8e2fe09f | 3436 | abort (); |
| a06ea964 NC |
3437 | } |
| 3438 | ||
| 3439 | size = (size + 7) & ~7; | |
| 3440 | stub_entry->stub_sec->size += size; | |
| 3441 | return TRUE; | |
| 3442 | } | |
| 3443 | ||
| 3444 | /* External entry points for sizing and building linker stubs. */ | |
| 3445 | ||
| 3446 | /* Set up various things so that we can make a list of input sections | |
| 3447 | for each output section included in the link. Returns -1 on error, | |
| 3448 | 0 when no stubs will be needed, and 1 on success. */ | |
| 3449 | ||
| 3450 | int | |
| cec5225b | 3451 | elfNN_aarch64_setup_section_lists (bfd *output_bfd, |
| a06ea964 NC |
3452 | struct bfd_link_info *info) |
| 3453 | { | |
| 3454 | bfd *input_bfd; | |
| 3455 | unsigned int bfd_count; | |
| 7292b3ac | 3456 | unsigned int top_id, top_index; |
| a06ea964 NC |
3457 | asection *section; |
| 3458 | asection **input_list, **list; | |
| 986f0783 | 3459 | size_t amt; |
| cec5225b YZ |
3460 | struct elf_aarch64_link_hash_table *htab = |
| 3461 | elf_aarch64_hash_table (info); | |
| a06ea964 NC |
3462 | |
| 3463 | if (!is_elf_hash_table (htab)) | |
| 3464 | return 0; | |
| 3465 | ||
| 3466 | /* Count the number of input BFDs and find the top input section id. */ | |
| 3467 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
| c72f2fb2 | 3468 | input_bfd != NULL; input_bfd = input_bfd->link.next) |
| a06ea964 NC |
3469 | { |
| 3470 | bfd_count += 1; | |
| 3471 | for (section = input_bfd->sections; | |
| 3472 | section != NULL; section = section->next) | |
| 3473 | { | |
| 3474 | if (top_id < section->id) | |
| 3475 | top_id = section->id; | |
| 3476 | } | |
| 3477 | } | |
| 3478 | htab->bfd_count = bfd_count; | |
| 3479 | ||
| 3480 | amt = sizeof (struct map_stub) * (top_id + 1); | |
| 3481 | htab->stub_group = bfd_zmalloc (amt); | |
| 3482 | if (htab->stub_group == NULL) | |
| 3483 | return -1; | |
| 3484 | ||
| 3485 | /* We can't use output_bfd->section_count here to find the top output | |
| 3486 | section index as some sections may have been removed, and | |
| 3487 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
| 3488 | for (section = output_bfd->sections, top_index = 0; | |
| 3489 | section != NULL; section = section->next) | |
| 3490 | { | |
| 3491 | if (top_index < section->index) | |
| 3492 | top_index = section->index; | |
| 3493 | } | |
| 3494 | ||
| 3495 | htab->top_index = top_index; | |
| 3496 | amt = sizeof (asection *) * (top_index + 1); | |
| 3497 | input_list = bfd_malloc (amt); | |
| 3498 | htab->input_list = input_list; | |
| 3499 | if (input_list == NULL) | |
| 3500 | return -1; | |
| 3501 | ||
| 3502 | /* For sections we aren't interested in, mark their entries with a | |
| 3503 | value we can check later. */ | |
| 3504 | list = input_list + top_index; | |
| 3505 | do | |
| 3506 | *list = bfd_abs_section_ptr; | |
| 3507 | while (list-- != input_list); | |
| 3508 | ||
| 3509 | for (section = output_bfd->sections; | |
| 3510 | section != NULL; section = section->next) | |
| 3511 | { | |
| 3512 | if ((section->flags & SEC_CODE) != 0) | |
| 3513 | input_list[section->index] = NULL; | |
| 3514 | } | |
| 3515 | ||
| 3516 | return 1; | |
| 3517 | } | |
| 3518 | ||
| cec5225b | 3519 | /* Used by elfNN_aarch64_next_input_section and group_sections. */ |
| a06ea964 NC |
3520 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
| 3521 | ||
| 3522 | /* The linker repeatedly calls this function for each input section, | |
| 3523 | in the order that input sections are linked into output sections. | |
| 3524 | Build lists of input sections to determine groupings between which | |
| 3525 | we may insert linker stubs. */ | |
| 3526 | ||
| 3527 | void | |
| cec5225b | 3528 | elfNN_aarch64_next_input_section (struct bfd_link_info *info, asection *isec) |
| a06ea964 | 3529 | { |
| cec5225b YZ |
3530 | struct elf_aarch64_link_hash_table *htab = |
| 3531 | elf_aarch64_hash_table (info); | |
| a06ea964 NC |
3532 | |
| 3533 | if (isec->output_section->index <= htab->top_index) | |
| 3534 | { | |
| 3535 | asection **list = htab->input_list + isec->output_section->index; | |
| 3536 | ||
| 3537 | if (*list != bfd_abs_section_ptr) | |
| 3538 | { | |
| 3539 | /* Steal the link_sec pointer for our list. */ | |
| 3540 | /* This happens to make the list in reverse order, | |
| 3541 | which is what we want. */ | |
| 3542 | PREV_SEC (isec) = *list; | |
| 3543 | *list = isec; | |
| 3544 | } | |
| 3545 | } | |
| 3546 | } | |
| 3547 | ||
| 3548 | /* See whether we can group stub sections together. Grouping stub | |
| 3549 | sections may result in fewer stubs. More importantly, we need to | |
| 3550 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 3551 | .fini output sections respectively, because glibc splits the | |
| 3552 | _init and _fini functions into multiple parts. Putting a stub in | |
| 3553 | the middle of a function is not a good idea. */ | |
| 3554 | ||
| 3555 | static void | |
| cec5225b | 3556 | group_sections (struct elf_aarch64_link_hash_table *htab, |
| a06ea964 NC |
3557 | bfd_size_type stub_group_size, |
| 3558 | bfd_boolean stubs_always_before_branch) | |
| 3559 | { | |
| 3560 | asection **list = htab->input_list + htab->top_index; | |
| 3561 | ||
| 3562 | do | |
| 3563 | { | |
| 3564 | asection *tail = *list; | |
| 3565 | ||
| 3566 | if (tail == bfd_abs_section_ptr) | |
| 3567 | continue; | |
| 3568 | ||
| 3569 | while (tail != NULL) | |
| 3570 | { | |
| 3571 | asection *curr; | |
| 3572 | asection *prev; | |
| 3573 | bfd_size_type total; | |
| 3574 | ||
| 3575 | curr = tail; | |
| 3576 | total = tail->size; | |
| 3577 | while ((prev = PREV_SEC (curr)) != NULL | |
| 3578 | && ((total += curr->output_offset - prev->output_offset) | |
| 3579 | < stub_group_size)) | |
| 3580 | curr = prev; | |
| 3581 | ||
| 3582 | /* OK, the size from the start of CURR to the end is less | |
| 3583 | than stub_group_size and thus can be handled by one stub | |
| 3584 | section. (Or the tail section is itself larger than | |
| 3585 | stub_group_size, in which case we may be toast.) | |
| 3586 | We should really be keeping track of the total size of | |
| 3587 | stubs added here, as stubs contribute to the final output | |
| 3588 | section size. */ | |
| 3589 | do | |
| 3590 | { | |
| 3591 | prev = PREV_SEC (tail); | |
| 3592 | /* Set up this stub group. */ | |
| 3593 | htab->stub_group[tail->id].link_sec = curr; | |
| 3594 | } | |
| 3595 | while (tail != curr && (tail = prev) != NULL); | |
| 3596 | ||
| 3597 | /* But wait, there's more! Input sections up to stub_group_size | |
| 3598 | bytes before the stub section can be handled by it too. */ | |
| 3599 | if (!stubs_always_before_branch) | |
| 3600 | { | |
| 3601 | total = 0; | |
| 3602 | while (prev != NULL | |
| 3603 | && ((total += tail->output_offset - prev->output_offset) | |
| 3604 | < stub_group_size)) | |
| 3605 | { | |
| 3606 | tail = prev; | |
| 3607 | prev = PREV_SEC (tail); | |
| 3608 | htab->stub_group[tail->id].link_sec = curr; | |
| 3609 | } | |
| 3610 | } | |
| 3611 | tail = prev; | |
| 3612 | } | |
| 3613 | } | |
| 3614 | while (list-- != htab->input_list); | |
| 3615 | ||
| 3616 | free (htab->input_list); | |
| 3617 | } | |
| 3618 | ||
| 3619 | #undef PREV_SEC | |
| 3620 | ||
| 68fcca92 JW |
3621 | #define AARCH64_BITS(x, pos, n) (((x) >> (pos)) & ((1 << (n)) - 1)) |
| 3622 | ||
| 3623 | #define AARCH64_RT(insn) AARCH64_BITS (insn, 0, 5) | |
| 3624 | #define AARCH64_RT2(insn) AARCH64_BITS (insn, 10, 5) | |
| 3625 | #define AARCH64_RA(insn) AARCH64_BITS (insn, 10, 5) | |
| 3626 | #define AARCH64_RD(insn) AARCH64_BITS (insn, 0, 5) | |
| 3627 | #define AARCH64_RN(insn) AARCH64_BITS (insn, 5, 5) | |
| 3628 | #define AARCH64_RM(insn) AARCH64_BITS (insn, 16, 5) | |
| 3629 | ||
| 3630 | #define AARCH64_MAC(insn) (((insn) & 0xff000000) == 0x9b000000) | |
| 3631 | #define AARCH64_BIT(insn, n) AARCH64_BITS (insn, n, 1) | |
| 3632 | #define AARCH64_OP31(insn) AARCH64_BITS (insn, 21, 3) | |
| 3633 | #define AARCH64_ZR 0x1f | |
| 3634 | ||
| 3635 | /* All ld/st ops. See C4-182 of the ARM ARM. The encoding space for | |
| 3636 | LD_PCREL, LDST_RO, LDST_UI and LDST_UIMM cover prefetch ops. */ | |
| 3637 | ||
| 3638 | #define AARCH64_LD(insn) (AARCH64_BIT (insn, 22) == 1) | |
| 3639 | #define AARCH64_LDST(insn) (((insn) & 0x0a000000) == 0x08000000) | |
| 3640 | #define AARCH64_LDST_EX(insn) (((insn) & 0x3f000000) == 0x08000000) | |
| 3641 | #define AARCH64_LDST_PCREL(insn) (((insn) & 0x3b000000) == 0x18000000) | |
| 3642 | #define AARCH64_LDST_NAP(insn) (((insn) & 0x3b800000) == 0x28000000) | |
| 3643 | #define AARCH64_LDSTP_PI(insn) (((insn) & 0x3b800000) == 0x28800000) | |
| 3644 | #define AARCH64_LDSTP_O(insn) (((insn) & 0x3b800000) == 0x29000000) | |
| 3645 | #define AARCH64_LDSTP_PRE(insn) (((insn) & 0x3b800000) == 0x29800000) | |
| 3646 | #define AARCH64_LDST_UI(insn) (((insn) & 0x3b200c00) == 0x38000000) | |
| 3647 | #define AARCH64_LDST_PIIMM(insn) (((insn) & 0x3b200c00) == 0x38000400) | |
| 3648 | #define AARCH64_LDST_U(insn) (((insn) & 0x3b200c00) == 0x38000800) | |
| 3649 | #define AARCH64_LDST_PREIMM(insn) (((insn) & 0x3b200c00) == 0x38000c00) | |
| 3650 | #define AARCH64_LDST_RO(insn) (((insn) & 0x3b200c00) == 0x38200800) | |
| 3651 | #define AARCH64_LDST_UIMM(insn) (((insn) & 0x3b000000) == 0x39000000) | |
| 3652 | #define AARCH64_LDST_SIMD_M(insn) (((insn) & 0xbfbf0000) == 0x0c000000) | |
| 3653 | #define AARCH64_LDST_SIMD_M_PI(insn) (((insn) & 0xbfa00000) == 0x0c800000) | |
| 3654 | #define AARCH64_LDST_SIMD_S(insn) (((insn) & 0xbf9f0000) == 0x0d000000) | |
| 3655 | #define AARCH64_LDST_SIMD_S_PI(insn) (((insn) & 0xbf800000) == 0x0d800000) | |
| 3656 | ||
| 3d14faea MS |
3657 | /* Classify an INSN if it is indeed a load/store. |
| 3658 | ||
| 3659 | Return TRUE if INSN is a LD/ST instruction otherwise return FALSE. | |
| 3660 | ||
| 3661 | For scalar LD/ST instructions PAIR is FALSE, RT is returned and RT2 | |
| 3662 | is set equal to RT. | |
| 3663 | ||
| 2d0ca824 | 3664 | For LD/ST pair instructions PAIR is TRUE, RT and RT2 are returned. */ |
| 68fcca92 JW |
3665 | |
| 3666 | static bfd_boolean | |
| 3d14faea | 3667 | aarch64_mem_op_p (uint32_t insn, unsigned int *rt, unsigned int *rt2, |
| 68fcca92 JW |
3668 | bfd_boolean *pair, bfd_boolean *load) |
| 3669 | { | |
| 3670 | uint32_t opcode; | |
| 3671 | unsigned int r; | |
| 3672 | uint32_t opc = 0; | |
| 3673 | uint32_t v = 0; | |
| 3674 | uint32_t opc_v = 0; | |
| 3675 | ||
| de194d85 | 3676 | /* Bail out quickly if INSN doesn't fall into the load-store |
| 68fcca92 JW |
3677 | encoding space. */ |
| 3678 | if (!AARCH64_LDST (insn)) | |
| 3679 | return FALSE; | |
| 3680 | ||
| 3681 | *pair = FALSE; | |
| 3682 | *load = FALSE; | |
| 3683 | if (AARCH64_LDST_EX (insn)) | |
| 3684 | { | |
| 3685 | *rt = AARCH64_RT (insn); | |
| 3d14faea | 3686 | *rt2 = *rt; |
| 68fcca92 | 3687 | if (AARCH64_BIT (insn, 21) == 1) |
| 07d6d2b8 | 3688 | { |
| 68fcca92 | 3689 | *pair = TRUE; |
| 3d14faea | 3690 | *rt2 = AARCH64_RT2 (insn); |
| 68fcca92 JW |
3691 | } |
| 3692 | *load = AARCH64_LD (insn); | |
| 3693 | return TRUE; | |
| 3694 | } | |
| 3695 | else if (AARCH64_LDST_NAP (insn) | |
| 3696 | || AARCH64_LDSTP_PI (insn) | |
| 3697 | || AARCH64_LDSTP_O (insn) | |
| 3698 | || AARCH64_LDSTP_PRE (insn)) | |
| 3699 | { | |
| 3700 | *pair = TRUE; | |
| 3701 | *rt = AARCH64_RT (insn); | |
| 3d14faea | 3702 | *rt2 = AARCH64_RT2 (insn); |
| 68fcca92 JW |
3703 | *load = AARCH64_LD (insn); |
| 3704 | return TRUE; | |
| 3705 | } | |
| 3706 | else if (AARCH64_LDST_PCREL (insn) | |
| 3707 | || AARCH64_LDST_UI (insn) | |
| 3708 | || AARCH64_LDST_PIIMM (insn) | |
| 3709 | || AARCH64_LDST_U (insn) | |
| 3710 | || AARCH64_LDST_PREIMM (insn) | |
| 3711 | || AARCH64_LDST_RO (insn) | |
| 3712 | || AARCH64_LDST_UIMM (insn)) | |
| 3713 | { | |
| 3714 | *rt = AARCH64_RT (insn); | |
| 3d14faea | 3715 | *rt2 = *rt; |
| 68fcca92 JW |
3716 | if (AARCH64_LDST_PCREL (insn)) |
| 3717 | *load = TRUE; | |
| 3718 | opc = AARCH64_BITS (insn, 22, 2); | |
| 3719 | v = AARCH64_BIT (insn, 26); | |
| 3720 | opc_v = opc | (v << 2); | |
| 3721 | *load = (opc_v == 1 || opc_v == 2 || opc_v == 3 | |
| 3722 | || opc_v == 5 || opc_v == 7); | |
| 3723 | return TRUE; | |
| 3724 | } | |
| 3725 | else if (AARCH64_LDST_SIMD_M (insn) | |
| 3726 | || AARCH64_LDST_SIMD_M_PI (insn)) | |
| 3727 | { | |
| 3728 | *rt = AARCH64_RT (insn); | |
| 3729 | *load = AARCH64_BIT (insn, 22); | |
| 3730 | opcode = (insn >> 12) & 0xf; | |
| 3731 | switch (opcode) | |
| 3732 | { | |
| 3733 | case 0: | |
| 3734 | case 2: | |
| 3d14faea | 3735 | *rt2 = *rt + 3; |
| 68fcca92 JW |
3736 | break; |
| 3737 | ||
| 3738 | case 4: | |
| 3739 | case 6: | |
| 3d14faea | 3740 | *rt2 = *rt + 2; |
| 68fcca92 JW |
3741 | break; |
| 3742 | ||
| 3743 | case 7: | |
| 3d14faea | 3744 | *rt2 = *rt; |
| 68fcca92 JW |
3745 | break; |
| 3746 | ||
| 3747 | case 8: | |
| 3748 | case 10: | |
| 3d14faea | 3749 | *rt2 = *rt + 1; |
| 68fcca92 JW |
3750 | break; |
| 3751 | ||
| 3752 | default: | |
| 3753 | return FALSE; | |
| 3754 | } | |
| 3755 | return TRUE; | |
| 3756 | } | |
| 3757 | else if (AARCH64_LDST_SIMD_S (insn) | |
| 3758 | || AARCH64_LDST_SIMD_S_PI (insn)) | |
| 3759 | { | |
| 3760 | *rt = AARCH64_RT (insn); | |
| 3761 | r = (insn >> 21) & 1; | |
| 3762 | *load = AARCH64_BIT (insn, 22); | |
| 3763 | opcode = (insn >> 13) & 0x7; | |
| 3764 | switch (opcode) | |
| 3765 | { | |
| 3766 | case 0: | |
| 3767 | case 2: | |
| 3768 | case 4: | |
| 3d14faea | 3769 | *rt2 = *rt + r; |
| 68fcca92 JW |
3770 | break; |
| 3771 | ||
| 3772 | case 1: | |
| 3773 | case 3: | |
| 3774 | case 5: | |
| 3d14faea | 3775 | *rt2 = *rt + (r == 0 ? 2 : 3); |
| 68fcca92 JW |
3776 | break; |
| 3777 | ||
| 3778 | case 6: | |
| 3d14faea | 3779 | *rt2 = *rt + r; |
| 68fcca92 JW |
3780 | break; |
| 3781 | ||
| 3782 | case 7: | |
| 3d14faea | 3783 | *rt2 = *rt + (r == 0 ? 2 : 3); |
| 68fcca92 JW |
3784 | break; |
| 3785 | ||
| 3786 | default: | |
| 3787 | return FALSE; | |
| 3788 | } | |
| 3789 | return TRUE; | |
| 3790 | } | |
| 3791 | ||
| 3792 | return FALSE; | |
| 3793 | } | |
| 3794 | ||
| 3795 | /* Return TRUE if INSN is multiply-accumulate. */ | |
| 3796 | ||
| 3797 | static bfd_boolean | |
| 3798 | aarch64_mlxl_p (uint32_t insn) | |
| 3799 | { | |
| 3800 | uint32_t op31 = AARCH64_OP31 (insn); | |
| 3801 | ||
| 3802 | if (AARCH64_MAC (insn) | |
| 3803 | && (op31 == 0 || op31 == 1 || op31 == 5) | |
| 3804 | /* Exclude MUL instructions which are encoded as a multiple accumulate | |
| 3805 | with RA = XZR. */ | |
| 3806 | && AARCH64_RA (insn) != AARCH64_ZR) | |
| 3807 | return TRUE; | |
| 3808 | ||
| 3809 | return FALSE; | |
| 3810 | } | |
| 3811 | ||
| 3812 | /* Some early revisions of the Cortex-A53 have an erratum (835769) whereby | |
| 3813 | it is possible for a 64-bit multiply-accumulate instruction to generate an | |
| 3814 | incorrect result. The details are quite complex and hard to | |
| 3815 | determine statically, since branches in the code may exist in some | |
| 3816 | circumstances, but all cases end with a memory (load, store, or | |
| 3817 | prefetch) instruction followed immediately by the multiply-accumulate | |
| 3818 | operation. We employ a linker patching technique, by moving the potentially | |
| 3819 | affected multiply-accumulate instruction into a patch region and replacing | |
| 3820 | the original instruction with a branch to the patch. This function checks | |
| 3821 | if INSN_1 is the memory operation followed by a multiply-accumulate | |
| 3822 | operation (INSN_2). Return TRUE if an erratum sequence is found, FALSE | |
| 3823 | if INSN_1 and INSN_2 are safe. */ | |
| 3824 | ||
| 3825 | static bfd_boolean | |
| 3826 | aarch64_erratum_sequence (uint32_t insn_1, uint32_t insn_2) | |
| 3827 | { | |
| 3828 | uint32_t rt; | |
| 3d14faea | 3829 | uint32_t rt2; |
| 68fcca92 JW |
3830 | uint32_t rn; |
| 3831 | uint32_t rm; | |
| 3832 | uint32_t ra; | |
| 3833 | bfd_boolean pair; | |
| 3834 | bfd_boolean load; | |
| 3835 | ||
| 3836 | if (aarch64_mlxl_p (insn_2) | |
| 3d14faea | 3837 | && aarch64_mem_op_p (insn_1, &rt, &rt2, &pair, &load)) |
| 68fcca92 JW |
3838 | { |
| 3839 | /* Any SIMD memory op is independent of the subsequent MLA | |
| 3840 | by definition of the erratum. */ | |
| 3841 | if (AARCH64_BIT (insn_1, 26)) | |
| 3842 | return TRUE; | |
| 3843 | ||
| 3844 | /* If not SIMD, check for integer memory ops and MLA relationship. */ | |
| 3845 | rn = AARCH64_RN (insn_2); | |
| 3846 | ra = AARCH64_RA (insn_2); | |
| 3847 | rm = AARCH64_RM (insn_2); | |
| 3848 | ||
| 3849 | /* If this is a load and there's a true(RAW) dependency, we are safe | |
| 3850 | and this is not an erratum sequence. */ | |
| 3851 | if (load && | |
| 3852 | (rt == rn || rt == rm || rt == ra | |
| 3d14faea | 3853 | || (pair && (rt2 == rn || rt2 == rm || rt2 == ra)))) |
| 68fcca92 JW |
3854 | return FALSE; |
| 3855 | ||
| 3856 | /* We conservatively put out stubs for all other cases (including | |
| 3857 | writebacks). */ | |
| 3858 | return TRUE; | |
| 3859 | } | |
| 3860 | ||
| 3861 | return FALSE; | |
| 3862 | } | |
| 3863 | ||
| 520c7b56 JW |
3864 | /* Used to order a list of mapping symbols by address. */ |
| 3865 | ||
| 3866 | static int | |
| 3867 | elf_aarch64_compare_mapping (const void *a, const void *b) | |
| 3868 | { | |
| 3869 | const elf_aarch64_section_map *amap = (const elf_aarch64_section_map *) a; | |
| 3870 | const elf_aarch64_section_map *bmap = (const elf_aarch64_section_map *) b; | |
| 3871 | ||
| 3872 | if (amap->vma > bmap->vma) | |
| 3873 | return 1; | |
| 3874 | else if (amap->vma < bmap->vma) | |
| 3875 | return -1; | |
| 3876 | else if (amap->type > bmap->type) | |
| 3877 | /* Ensure results do not depend on the host qsort for objects with | |
| 3878 | multiple mapping symbols at the same address by sorting on type | |
| 3879 | after vma. */ | |
| 3880 | return 1; | |
| 3881 | else if (amap->type < bmap->type) | |
| 3882 | return -1; | |
| 3883 | else | |
| 3884 | return 0; | |
| 3885 | } | |
| 3886 | ||
| 2144188d | 3887 | |
| 35fee8b7 MS |
3888 | static char * |
| 3889 | _bfd_aarch64_erratum_835769_stub_name (unsigned num_fixes) | |
| 3890 | { | |
| 3891 | char *stub_name = (char *) bfd_malloc | |
| 3892 | (strlen ("__erratum_835769_veneer_") + 16); | |
| bb69498c NC |
3893 | if (stub_name != NULL) |
| 3894 | sprintf (stub_name,"__erratum_835769_veneer_%d", num_fixes); | |
| 35fee8b7 MS |
3895 | return stub_name; |
| 3896 | } | |
| 3897 | ||
| 4106101c | 3898 | /* Scan for Cortex-A53 erratum 835769 sequence. |
| 2144188d MS |
3899 | |
| 3900 | Return TRUE else FALSE on abnormal termination. */ | |
| 3901 | ||
| 68fcca92 | 3902 | static bfd_boolean |
| 5421cc6e MS |
3903 | _bfd_aarch64_erratum_835769_scan (bfd *input_bfd, |
| 3904 | struct bfd_link_info *info, | |
| 3905 | unsigned int *num_fixes_p) | |
| 68fcca92 JW |
3906 | { |
| 3907 | asection *section; | |
| 3908 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); | |
| 68fcca92 | 3909 | unsigned int num_fixes = *num_fixes_p; |
| 68fcca92 JW |
3910 | |
| 3911 | if (htab == NULL) | |
| 2144188d | 3912 | return TRUE; |
| 68fcca92 JW |
3913 | |
| 3914 | for (section = input_bfd->sections; | |
| 3915 | section != NULL; | |
| 3916 | section = section->next) | |
| 3917 | { | |
| 3918 | bfd_byte *contents = NULL; | |
| 3919 | struct _aarch64_elf_section_data *sec_data; | |
| 3920 | unsigned int span; | |
| 3921 | ||
| 3922 | if (elf_section_type (section) != SHT_PROGBITS | |
| 3923 | || (elf_section_flags (section) & SHF_EXECINSTR) == 0 | |
| 3924 | || (section->flags & SEC_EXCLUDE) != 0 | |
| 3925 | || (section->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) | |
| 3926 | || (section->output_section == bfd_abs_section_ptr)) | |
| 3927 | continue; | |
| 3928 | ||
| 3929 | if (elf_section_data (section)->this_hdr.contents != NULL) | |
| 3930 | contents = elf_section_data (section)->this_hdr.contents; | |
| 3931 | else if (! bfd_malloc_and_get_section (input_bfd, section, &contents)) | |
| 2144188d | 3932 | return FALSE; |
| 68fcca92 JW |
3933 | |
| 3934 | sec_data = elf_aarch64_section_data (section); | |
| 520c7b56 JW |
3935 | |
| 3936 | qsort (sec_data->map, sec_data->mapcount, | |
| 3937 | sizeof (elf_aarch64_section_map), elf_aarch64_compare_mapping); | |
| 3938 | ||
| 68fcca92 JW |
3939 | for (span = 0; span < sec_data->mapcount; span++) |
| 3940 | { | |
| 3941 | unsigned int span_start = sec_data->map[span].vma; | |
| 3942 | unsigned int span_end = ((span == sec_data->mapcount - 1) | |
| 3943 | ? sec_data->map[0].vma + section->size | |
| 3944 | : sec_data->map[span + 1].vma); | |
| 3945 | unsigned int i; | |
| 3946 | char span_type = sec_data->map[span].type; | |
| 3947 | ||
| 3948 | if (span_type == 'd') | |
| 3949 | continue; | |
| 3950 | ||
| 3951 | for (i = span_start; i + 4 < span_end; i += 4) | |
| 3952 | { | |
| 3953 | uint32_t insn_1 = bfd_getl32 (contents + i); | |
| 3954 | uint32_t insn_2 = bfd_getl32 (contents + i + 4); | |
| 3955 | ||
| 3956 | if (aarch64_erratum_sequence (insn_1, insn_2)) | |
| 3957 | { | |
| 5421cc6e | 3958 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| 35fee8b7 MS |
3959 | char *stub_name = _bfd_aarch64_erratum_835769_stub_name (num_fixes); |
| 3960 | if (! stub_name) | |
| 2144188d | 3961 | return FALSE; |
| 68fcca92 | 3962 | |
| 5421cc6e MS |
3963 | stub_entry = _bfd_aarch64_add_stub_entry_in_group (stub_name, |
| 3964 | section, | |
| 3965 | htab); | |
| 3966 | if (! stub_entry) | |
| 3967 | return FALSE; | |
| 68fcca92 | 3968 | |
| 5421cc6e MS |
3969 | stub_entry->stub_type = aarch64_stub_erratum_835769_veneer; |
| 3970 | stub_entry->target_section = section; | |
| 3971 | stub_entry->target_value = i + 4; | |
| 3972 | stub_entry->veneered_insn = insn_2; | |
| 3973 | stub_entry->output_name = stub_name; | |
| 68fcca92 JW |
3974 | num_fixes++; |
| 3975 | } | |
| 3976 | } | |
| 3977 | } | |
| 3978 | if (elf_section_data (section)->this_hdr.contents == NULL) | |
| 3979 | free (contents); | |
| 3980 | } | |
| 3981 | ||
| 357d1523 MS |
3982 | *num_fixes_p = num_fixes; |
| 3983 | ||
| 2144188d | 3984 | return TRUE; |
| 68fcca92 JW |
3985 | } |
| 3986 | ||
| 13f622ec | 3987 | |
| 4106101c MS |
3988 | /* Test if instruction INSN is ADRP. */ |
| 3989 | ||
| 3990 | static bfd_boolean | |
| 3991 | _bfd_aarch64_adrp_p (uint32_t insn) | |
| 3992 | { | |
| 9fca35fc | 3993 | return ((insn & AARCH64_ADRP_OP_MASK) == AARCH64_ADRP_OP); |
| 4106101c MS |
3994 | } |
| 3995 | ||
| 3996 | ||
| 3997 | /* Helper predicate to look for cortex-a53 erratum 843419 sequence 1. */ | |
| 3998 | ||
| 3999 | static bfd_boolean | |
| 4000 | _bfd_aarch64_erratum_843419_sequence_p (uint32_t insn_1, uint32_t insn_2, | |
| 4001 | uint32_t insn_3) | |
| 4002 | { | |
| 4003 | uint32_t rt; | |
| 4004 | uint32_t rt2; | |
| 4005 | bfd_boolean pair; | |
| 4006 | bfd_boolean load; | |
| 4007 | ||
| 4008 | return (aarch64_mem_op_p (insn_2, &rt, &rt2, &pair, &load) | |
| 4009 | && (!pair | |
| 4010 | || (pair && !load)) | |
| 4011 | && AARCH64_LDST_UIMM (insn_3) | |
| 4012 | && AARCH64_RN (insn_3) == AARCH64_RD (insn_1)); | |
| 4013 | } | |
| 4014 | ||
| 4015 | ||
| 4016 | /* Test for the presence of Cortex-A53 erratum 843419 instruction sequence. | |
| 4017 | ||
| 4018 | Return TRUE if section CONTENTS at offset I contains one of the | |
| 4019 | erratum 843419 sequences, otherwise return FALSE. If a sequence is | |
| 4020 | seen set P_VENEER_I to the offset of the final LOAD/STORE | |
| 4021 | instruction in the sequence. | |
| 4022 | */ | |
| 4023 | ||
| 4024 | static bfd_boolean | |
| 4025 | _bfd_aarch64_erratum_843419_p (bfd_byte *contents, bfd_vma vma, | |
| 4026 | bfd_vma i, bfd_vma span_end, | |
| 4027 | bfd_vma *p_veneer_i) | |
| 4028 | { | |
| 4029 | uint32_t insn_1 = bfd_getl32 (contents + i); | |
| 4030 | ||
| 4031 | if (!_bfd_aarch64_adrp_p (insn_1)) | |
| 4032 | return FALSE; | |
| 4033 | ||
| 4034 | if (span_end < i + 12) | |
| 4035 | return FALSE; | |
| 4036 | ||
| 4037 | uint32_t insn_2 = bfd_getl32 (contents + i + 4); | |
| 4038 | uint32_t insn_3 = bfd_getl32 (contents + i + 8); | |
| 4039 | ||
| 4040 | if ((vma & 0xfff) != 0xff8 && (vma & 0xfff) != 0xffc) | |
| 4041 | return FALSE; | |
| 4042 | ||
| 4043 | if (_bfd_aarch64_erratum_843419_sequence_p (insn_1, insn_2, insn_3)) | |
| 4044 | { | |
| 4045 | *p_veneer_i = i + 8; | |
| 4046 | return TRUE; | |
| 4047 | } | |
| 4048 | ||
| 4049 | if (span_end < i + 16) | |
| 4050 | return FALSE; | |
| 4051 | ||
| 4052 | uint32_t insn_4 = bfd_getl32 (contents + i + 12); | |
| 4053 | ||
| 4054 | if (_bfd_aarch64_erratum_843419_sequence_p (insn_1, insn_2, insn_4)) | |
| 4055 | { | |
| 4056 | *p_veneer_i = i + 12; | |
| 4057 | return TRUE; | |
| 4058 | } | |
| 4059 | ||
| 4060 | return FALSE; | |
| 4061 | } | |
| 4062 | ||
| 4063 | ||
| 13f622ec MS |
4064 | /* Resize all stub sections. */ |
| 4065 | ||
| 4066 | static void | |
| 4067 | _bfd_aarch64_resize_stubs (struct elf_aarch64_link_hash_table *htab) | |
| 4068 | { | |
| 4069 | asection *section; | |
| 4070 | ||
| 4071 | /* OK, we've added some stubs. Find out the new size of the | |
| 4072 | stub sections. */ | |
| 4073 | for (section = htab->stub_bfd->sections; | |
| 4074 | section != NULL; section = section->next) | |
| 4075 | { | |
| 4076 | /* Ignore non-stub sections. */ | |
| 4077 | if (!strstr (section->name, STUB_SUFFIX)) | |
| 4078 | continue; | |
| 4079 | section->size = 0; | |
| 4080 | } | |
| 4081 | ||
| 4082 | bfd_hash_traverse (&htab->stub_hash_table, aarch64_size_one_stub, htab); | |
| 13f622ec | 4083 | |
| 61865519 MS |
4084 | for (section = htab->stub_bfd->sections; |
| 4085 | section != NULL; section = section->next) | |
| 4086 | { | |
| 4087 | if (!strstr (section->name, STUB_SUFFIX)) | |
| 4088 | continue; | |
| 4089 | ||
| 9a2ebffd JW |
4090 | /* Add space for a branch. Add 8 bytes to keep section 8 byte aligned, |
| 4091 | as long branch stubs contain a 64-bit address. */ | |
| 61865519 | 4092 | if (section->size) |
| 9a2ebffd | 4093 | section->size += 8; |
| 4106101c MS |
4094 | |
| 4095 | /* Ensure all stub sections have a size which is a multiple of | |
| 4096 | 4096. This is important in order to ensure that the insertion | |
| 4097 | of stub sections does not in itself move existing code around | |
| 739b5c9c TC |
4098 | in such a way that new errata sequences are created. We only do this |
| 4099 | when the ADRP workaround is enabled. If only the ADR workaround is | |
| 4100 | enabled then the stubs workaround won't ever be used. */ | |
| 4101 | if (htab->fix_erratum_843419 & ERRAT_ADRP) | |
| 4106101c MS |
4102 | if (section->size) |
| 4103 | section->size = BFD_ALIGN (section->size, 0x1000); | |
| 4104 | } | |
| 4105 | } | |
| 4106 | ||
| 9a2ebffd | 4107 | /* Construct an erratum 843419 workaround stub name. */ |
| 4106101c MS |
4108 | |
| 4109 | static char * | |
| 4110 | _bfd_aarch64_erratum_843419_stub_name (asection *input_section, | |
| 4111 | bfd_vma offset) | |
| 4112 | { | |
| 4113 | const bfd_size_type len = 8 + 4 + 1 + 8 + 1 + 16 + 1; | |
| 4114 | char *stub_name = bfd_malloc (len); | |
| 4115 | ||
| 4116 | if (stub_name != NULL) | |
| 4117 | snprintf (stub_name, len, "e843419@%04x_%08x_%" BFD_VMA_FMT "x", | |
| 4118 | input_section->owner->id, | |
| 4119 | input_section->id, | |
| 4120 | offset); | |
| 4121 | return stub_name; | |
| 4122 | } | |
| 4123 | ||
| 4124 | /* Build a stub_entry structure describing an 843419 fixup. | |
| 4125 | ||
| 4126 | The stub_entry constructed is populated with the bit pattern INSN | |
| 4127 | of the instruction located at OFFSET within input SECTION. | |
| 4128 | ||
| 4129 | Returns TRUE on success. */ | |
| 4130 | ||
| 4131 | static bfd_boolean | |
| 4132 | _bfd_aarch64_erratum_843419_fixup (uint32_t insn, | |
| 4133 | bfd_vma adrp_offset, | |
| 4134 | bfd_vma ldst_offset, | |
| 4135 | asection *section, | |
| 4136 | struct bfd_link_info *info) | |
| 4137 | { | |
| 4138 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); | |
| 4139 | char *stub_name; | |
| 4140 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 4141 | ||
| 4142 | stub_name = _bfd_aarch64_erratum_843419_stub_name (section, ldst_offset); | |
| bb69498c NC |
4143 | if (stub_name == NULL) |
| 4144 | return FALSE; | |
| 4106101c MS |
4145 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
| 4146 | FALSE, FALSE); | |
| 4147 | if (stub_entry) | |
| 4148 | { | |
| 4149 | free (stub_name); | |
| 4150 | return TRUE; | |
| 4151 | } | |
| 4152 | ||
| 4153 | /* We always place an 843419 workaround veneer in the stub section | |
| 4154 | attached to the input section in which an erratum sequence has | |
| 4155 | been found. This ensures that later in the link process (in | |
| 4156 | elfNN_aarch64_write_section) when we copy the veneered | |
| 4157 | instruction from the input section into the stub section the | |
| 4158 | copied instruction will have had any relocations applied to it. | |
| 4159 | If we placed workaround veneers in any other stub section then we | |
| 4160 | could not assume that all relocations have been processed on the | |
| 4161 | corresponding input section at the point we output the stub | |
| bb69498c | 4162 | section. */ |
| 4106101c MS |
4163 | |
| 4164 | stub_entry = _bfd_aarch64_add_stub_entry_after (stub_name, section, htab); | |
| 4165 | if (stub_entry == NULL) | |
| 4166 | { | |
| 4167 | free (stub_name); | |
| 4168 | return FALSE; | |
| 4169 | } | |
| 4170 | ||
| 4171 | stub_entry->adrp_offset = adrp_offset; | |
| 4172 | stub_entry->target_value = ldst_offset; | |
| 4173 | stub_entry->target_section = section; | |
| 4174 | stub_entry->stub_type = aarch64_stub_erratum_843419_veneer; | |
| 4175 | stub_entry->veneered_insn = insn; | |
| 4176 | stub_entry->output_name = stub_name; | |
| 4177 | ||
| 4178 | return TRUE; | |
| 4179 | } | |
| 4180 | ||
| 4181 | ||
| 4182 | /* Scan an input section looking for the signature of erratum 843419. | |
| 4183 | ||
| 4184 | Scans input SECTION in INPUT_BFD looking for erratum 843419 | |
| 4185 | signatures, for each signature found a stub_entry is created | |
| 4186 | describing the location of the erratum for subsequent fixup. | |
| 4187 | ||
| 4188 | Return TRUE on successful scan, FALSE on failure to scan. | |
| 4189 | */ | |
| 4190 | ||
| 4191 | static bfd_boolean | |
| 4192 | _bfd_aarch64_erratum_843419_scan (bfd *input_bfd, asection *section, | |
| 4193 | struct bfd_link_info *info) | |
| 4194 | { | |
| 4195 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); | |
| 4196 | ||
| 4197 | if (htab == NULL) | |
| 4198 | return TRUE; | |
| 4199 | ||
| 4200 | if (elf_section_type (section) != SHT_PROGBITS | |
| 4201 | || (elf_section_flags (section) & SHF_EXECINSTR) == 0 | |
| 4202 | || (section->flags & SEC_EXCLUDE) != 0 | |
| 4203 | || (section->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) | |
| 4204 | || (section->output_section == bfd_abs_section_ptr)) | |
| 4205 | return TRUE; | |
| 4206 | ||
| 4207 | do | |
| 4208 | { | |
| 4209 | bfd_byte *contents = NULL; | |
| 4210 | struct _aarch64_elf_section_data *sec_data; | |
| 4211 | unsigned int span; | |
| 4212 | ||
| 4213 | if (elf_section_data (section)->this_hdr.contents != NULL) | |
| 4214 | contents = elf_section_data (section)->this_hdr.contents; | |
| 4215 | else if (! bfd_malloc_and_get_section (input_bfd, section, &contents)) | |
| 4216 | return FALSE; | |
| 4217 | ||
| 4218 | sec_data = elf_aarch64_section_data (section); | |
| 4219 | ||
| 4220 | qsort (sec_data->map, sec_data->mapcount, | |
| 4221 | sizeof (elf_aarch64_section_map), elf_aarch64_compare_mapping); | |
| 4222 | ||
| 4223 | for (span = 0; span < sec_data->mapcount; span++) | |
| 4224 | { | |
| 4225 | unsigned int span_start = sec_data->map[span].vma; | |
| 4226 | unsigned int span_end = ((span == sec_data->mapcount - 1) | |
| 4227 | ? sec_data->map[0].vma + section->size | |
| 4228 | : sec_data->map[span + 1].vma); | |
| 4229 | unsigned int i; | |
| 4230 | char span_type = sec_data->map[span].type; | |
| 4231 | ||
| 4232 | if (span_type == 'd') | |
| 4233 | continue; | |
| 4234 | ||
| 4235 | for (i = span_start; i + 8 < span_end; i += 4) | |
| 4236 | { | |
| 4237 | bfd_vma vma = (section->output_section->vma | |
| 4238 | + section->output_offset | |
| 4239 | + i); | |
| 4240 | bfd_vma veneer_i; | |
| 4241 | ||
| 4242 | if (_bfd_aarch64_erratum_843419_p | |
| 4243 | (contents, vma, i, span_end, &veneer_i)) | |
| 4244 | { | |
| 4245 | uint32_t insn = bfd_getl32 (contents + veneer_i); | |
| 4246 | ||
| 4247 | if (!_bfd_aarch64_erratum_843419_fixup (insn, i, veneer_i, | |
| 4248 | section, info)) | |
| 4249 | return FALSE; | |
| 4250 | } | |
| 4251 | } | |
| 4252 | } | |
| 4253 | ||
| 4254 | if (elf_section_data (section)->this_hdr.contents == NULL) | |
| 4255 | free (contents); | |
| 61865519 | 4256 | } |
| 4106101c MS |
4257 | while (0); |
| 4258 | ||
| 4259 | return TRUE; | |
| 61865519 | 4260 | } |
| 13f622ec | 4261 | |
| 4106101c | 4262 | |
| a06ea964 NC |
4263 | /* Determine and set the size of the stub section for a final link. |
| 4264 | ||
| 4265 | The basic idea here is to examine all the relocations looking for | |
| 4266 | PC-relative calls to a target that is unreachable with a "bl" | |
| 4267 | instruction. */ | |
| 4268 | ||
| 4269 | bfd_boolean | |
| cec5225b | 4270 | elfNN_aarch64_size_stubs (bfd *output_bfd, |
| a06ea964 NC |
4271 | bfd *stub_bfd, |
| 4272 | struct bfd_link_info *info, | |
| 4273 | bfd_signed_vma group_size, | |
| 4274 | asection * (*add_stub_section) (const char *, | |
| 4275 | asection *), | |
| 4276 | void (*layout_sections_again) (void)) | |
| 4277 | { | |
| 4278 | bfd_size_type stub_group_size; | |
| 4279 | bfd_boolean stubs_always_before_branch; | |
| 5421cc6e | 4280 | bfd_boolean stub_changed = FALSE; |
| cec5225b | 4281 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); |
| 68fcca92 | 4282 | unsigned int num_erratum_835769_fixes = 0; |
| a06ea964 NC |
4283 | |
| 4284 | /* Propagate mach to stub bfd, because it may not have been | |
| 4285 | finalized when we created stub_bfd. */ | |
| 4286 | bfd_set_arch_mach (stub_bfd, bfd_get_arch (output_bfd), | |
| 4287 | bfd_get_mach (output_bfd)); | |
| 4288 | ||
| 4289 | /* Stash our params away. */ | |
| 4290 | htab->stub_bfd = stub_bfd; | |
| 4291 | htab->add_stub_section = add_stub_section; | |
| 4292 | htab->layout_sections_again = layout_sections_again; | |
| 4293 | stubs_always_before_branch = group_size < 0; | |
| 4294 | if (group_size < 0) | |
| 4295 | stub_group_size = -group_size; | |
| 4296 | else | |
| 4297 | stub_group_size = group_size; | |
| 4298 | ||
| 4299 | if (stub_group_size == 1) | |
| 4300 | { | |
| 4301 | /* Default values. */ | |
| b9eead84 | 4302 | /* AArch64 branch range is +-128MB. The value used is 1MB less. */ |
| a06ea964 NC |
4303 | stub_group_size = 127 * 1024 * 1024; |
| 4304 | } | |
| 4305 | ||
| 4306 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
| 4307 | ||
| 4106101c MS |
4308 | (*htab->layout_sections_again) (); |
| 4309 | ||
| 5421cc6e MS |
4310 | if (htab->fix_erratum_835769) |
| 4311 | { | |
| 4312 | bfd *input_bfd; | |
| 4313 | ||
| 4314 | for (input_bfd = info->input_bfds; | |
| 4315 | input_bfd != NULL; input_bfd = input_bfd->link.next) | |
| 8c803a2d AM |
4316 | { |
| 4317 | if (!is_aarch64_elf (input_bfd) | |
| 4318 | || (input_bfd->flags & BFD_LINKER_CREATED) != 0) | |
| 4319 | continue; | |
| 4320 | ||
| 4321 | if (!_bfd_aarch64_erratum_835769_scan (input_bfd, info, | |
| 4322 | &num_erratum_835769_fixes)) | |
| 4323 | return FALSE; | |
| 4324 | } | |
| 5421cc6e | 4325 | |
| 4106101c MS |
4326 | _bfd_aarch64_resize_stubs (htab); |
| 4327 | (*htab->layout_sections_again) (); | |
| 4328 | } | |
| 4329 | ||
| 739b5c9c | 4330 | if (htab->fix_erratum_843419 != ERRAT_NONE) |
| 4106101c MS |
4331 | { |
| 4332 | bfd *input_bfd; | |
| 4333 | ||
| 4334 | for (input_bfd = info->input_bfds; | |
| 4335 | input_bfd != NULL; | |
| 4336 | input_bfd = input_bfd->link.next) | |
| 4337 | { | |
| 4338 | asection *section; | |
| 4339 | ||
| 8c803a2d AM |
4340 | if (!is_aarch64_elf (input_bfd) |
| 4341 | || (input_bfd->flags & BFD_LINKER_CREATED) != 0) | |
| 4342 | continue; | |
| 4343 | ||
| 4106101c MS |
4344 | for (section = input_bfd->sections; |
| 4345 | section != NULL; | |
| 4346 | section = section->next) | |
| 4347 | if (!_bfd_aarch64_erratum_843419_scan (input_bfd, section, info)) | |
| 4348 | return FALSE; | |
| 4349 | } | |
| 4350 | ||
| 4351 | _bfd_aarch64_resize_stubs (htab); | |
| 4352 | (*htab->layout_sections_again) (); | |
| 5421cc6e MS |
4353 | } |
| 4354 | ||
| a06ea964 NC |
4355 | while (1) |
| 4356 | { | |
| 4357 | bfd *input_bfd; | |
| a06ea964 | 4358 | |
| 9b9971aa MS |
4359 | for (input_bfd = info->input_bfds; |
| 4360 | input_bfd != NULL; input_bfd = input_bfd->link.next) | |
| a06ea964 NC |
4361 | { |
| 4362 | Elf_Internal_Shdr *symtab_hdr; | |
| 4363 | asection *section; | |
| 4364 | Elf_Internal_Sym *local_syms = NULL; | |
| 4365 | ||
| 8c803a2d AM |
4366 | if (!is_aarch64_elf (input_bfd) |
| 4367 | || (input_bfd->flags & BFD_LINKER_CREATED) != 0) | |
| 4368 | continue; | |
| 4369 | ||
| a06ea964 NC |
4370 | /* We'll need the symbol table in a second. */ |
| 4371 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
| 4372 | if (symtab_hdr->sh_info == 0) | |
| 4373 | continue; | |
| 4374 | ||
| 4375 | /* Walk over each section attached to the input bfd. */ | |
| 4376 | for (section = input_bfd->sections; | |
| 4377 | section != NULL; section = section->next) | |
| 4378 | { | |
| 4379 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
| 4380 | ||
| 4381 | /* If there aren't any relocs, then there's nothing more | |
| 4382 | to do. */ | |
| 4383 | if ((section->flags & SEC_RELOC) == 0 | |
| 4384 | || section->reloc_count == 0 | |
| 4385 | || (section->flags & SEC_CODE) == 0) | |
| 4386 | continue; | |
| 4387 | ||
| 4388 | /* If this section is a link-once section that will be | |
| 4389 | discarded, then don't create any stubs. */ | |
| 4390 | if (section->output_section == NULL | |
| 4391 | || section->output_section->owner != output_bfd) | |
| 4392 | continue; | |
| 4393 | ||
| 4394 | /* Get the relocs. */ | |
| 4395 | internal_relocs | |
| 4396 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, | |
| 4397 | NULL, info->keep_memory); | |
| 4398 | if (internal_relocs == NULL) | |
| 4399 | goto error_ret_free_local; | |
| 4400 | ||
| 4401 | /* Now examine each relocation. */ | |
| 4402 | irela = internal_relocs; | |
| 4403 | irelaend = irela + section->reloc_count; | |
| 4404 | for (; irela < irelaend; irela++) | |
| 4405 | { | |
| 4406 | unsigned int r_type, r_indx; | |
| cec5225b YZ |
4407 | enum elf_aarch64_stub_type stub_type; |
| 4408 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| a06ea964 NC |
4409 | asection *sym_sec; |
| 4410 | bfd_vma sym_value; | |
| 4411 | bfd_vma destination; | |
| cec5225b | 4412 | struct elf_aarch64_link_hash_entry *hash; |
| a06ea964 NC |
4413 | const char *sym_name; |
| 4414 | char *stub_name; | |
| 4415 | const asection *id_sec; | |
| 4416 | unsigned char st_type; | |
| 4417 | bfd_size_type len; | |
| 4418 | ||
| cec5225b YZ |
4419 | r_type = ELFNN_R_TYPE (irela->r_info); |
| 4420 | r_indx = ELFNN_R_SYM (irela->r_info); | |
| a06ea964 NC |
4421 | |
| 4422 | if (r_type >= (unsigned int) R_AARCH64_end) | |
| 4423 | { | |
| 4424 | bfd_set_error (bfd_error_bad_value); | |
| 4425 | error_ret_free_internal: | |
| 4426 | if (elf_section_data (section)->relocs == NULL) | |
| 4427 | free (internal_relocs); | |
| 4428 | goto error_ret_free_local; | |
| 4429 | } | |
| 4430 | ||
| 4431 | /* Only look for stubs on unconditional branch and | |
| 4432 | branch and link instructions. */ | |
| a6bb11b2 YZ |
4433 | if (r_type != (unsigned int) AARCH64_R (CALL26) |
| 4434 | && r_type != (unsigned int) AARCH64_R (JUMP26)) | |
| a06ea964 NC |
4435 | continue; |
| 4436 | ||
| 4437 | /* Now determine the call target, its name, value, | |
| 4438 | section. */ | |
| 4439 | sym_sec = NULL; | |
| 4440 | sym_value = 0; | |
| 4441 | destination = 0; | |
| 4442 | hash = NULL; | |
| 4443 | sym_name = NULL; | |
| 4444 | if (r_indx < symtab_hdr->sh_info) | |
| 4445 | { | |
| 4446 | /* It's a local symbol. */ | |
| 4447 | Elf_Internal_Sym *sym; | |
| 4448 | Elf_Internal_Shdr *hdr; | |
| 4449 | ||
| 4450 | if (local_syms == NULL) | |
| 4451 | { | |
| 4452 | local_syms | |
| 4453 | = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 4454 | if (local_syms == NULL) | |
| 4455 | local_syms | |
| 4456 | = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
| 4457 | symtab_hdr->sh_info, 0, | |
| 4458 | NULL, NULL, NULL); | |
| 4459 | if (local_syms == NULL) | |
| 4460 | goto error_ret_free_internal; | |
| 4461 | } | |
| 4462 | ||
| 4463 | sym = local_syms + r_indx; | |
| 4464 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
| 4465 | sym_sec = hdr->bfd_section; | |
| 4466 | if (!sym_sec) | |
| 4467 | /* This is an undefined symbol. It can never | |
| 4468 | be resolved. */ | |
| 4469 | continue; | |
| 4470 | ||
| 4471 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
| 4472 | sym_value = sym->st_value; | |
| 4473 | destination = (sym_value + irela->r_addend | |
| 4474 | + sym_sec->output_offset | |
| 4475 | + sym_sec->output_section->vma); | |
| 4476 | st_type = ELF_ST_TYPE (sym->st_info); | |
| 4477 | sym_name | |
| 4478 | = bfd_elf_string_from_elf_section (input_bfd, | |
| 4479 | symtab_hdr->sh_link, | |
| 4480 | sym->st_name); | |
| 4481 | } | |
| 4482 | else | |
| 4483 | { | |
| 4484 | int e_indx; | |
| 4485 | ||
| 4486 | e_indx = r_indx - symtab_hdr->sh_info; | |
| cec5225b | 4487 | hash = ((struct elf_aarch64_link_hash_entry *) |
| a06ea964 NC |
4488 | elf_sym_hashes (input_bfd)[e_indx]); |
| 4489 | ||
| 4490 | while (hash->root.root.type == bfd_link_hash_indirect | |
| 4491 | || hash->root.root.type == bfd_link_hash_warning) | |
| cec5225b | 4492 | hash = ((struct elf_aarch64_link_hash_entry *) |
| a06ea964 NC |
4493 | hash->root.root.u.i.link); |
| 4494 | ||
| 4495 | if (hash->root.root.type == bfd_link_hash_defined | |
| 4496 | || hash->root.root.type == bfd_link_hash_defweak) | |
| 4497 | { | |
| cec5225b YZ |
4498 | struct elf_aarch64_link_hash_table *globals = |
| 4499 | elf_aarch64_hash_table (info); | |
| a06ea964 NC |
4500 | sym_sec = hash->root.root.u.def.section; |
| 4501 | sym_value = hash->root.root.u.def.value; | |
| 4502 | /* For a destination in a shared library, | |
| 4503 | use the PLT stub as target address to | |
| 4504 | decide whether a branch stub is | |
| 4505 | needed. */ | |
| 4506 | if (globals->root.splt != NULL && hash != NULL | |
| 4507 | && hash->root.plt.offset != (bfd_vma) - 1) | |
| 4508 | { | |
| 4509 | sym_sec = globals->root.splt; | |
| 4510 | sym_value = hash->root.plt.offset; | |
| 4511 | if (sym_sec->output_section != NULL) | |
| 4512 | destination = (sym_value | |
| 4513 | + sym_sec->output_offset | |
| 4514 | + | |
| 4515 | sym_sec->output_section->vma); | |
| 4516 | } | |
| 4517 | else if (sym_sec->output_section != NULL) | |
| 4518 | destination = (sym_value + irela->r_addend | |
| 4519 | + sym_sec->output_offset | |
| 4520 | + sym_sec->output_section->vma); | |
| 4521 | } | |
| 4522 | else if (hash->root.root.type == bfd_link_hash_undefined | |
| 4523 | || (hash->root.root.type | |
| 4524 | == bfd_link_hash_undefweak)) | |
| 4525 | { | |
| 4526 | /* For a shared library, use the PLT stub as | |
| 4527 | target address to decide whether a long | |
| 4528 | branch stub is needed. | |
| 4529 | For absolute code, they cannot be handled. */ | |
| cec5225b YZ |
4530 | struct elf_aarch64_link_hash_table *globals = |
| 4531 | elf_aarch64_hash_table (info); | |
| a06ea964 NC |
4532 | |
| 4533 | if (globals->root.splt != NULL && hash != NULL | |
| 4534 | && hash->root.plt.offset != (bfd_vma) - 1) | |
| 4535 | { | |
| 4536 | sym_sec = globals->root.splt; | |
| 4537 | sym_value = hash->root.plt.offset; | |
| 4538 | if (sym_sec->output_section != NULL) | |
| 4539 | destination = (sym_value | |
| 4540 | + sym_sec->output_offset | |
| 4541 | + | |
| 4542 | sym_sec->output_section->vma); | |
| 4543 | } | |
| 4544 | else | |
| 4545 | continue; | |
| 4546 | } | |
| 4547 | else | |
| 4548 | { | |
| 4549 | bfd_set_error (bfd_error_bad_value); | |
| 4550 | goto error_ret_free_internal; | |
| 4551 | } | |
| 4552 | st_type = ELF_ST_TYPE (hash->root.type); | |
| 4553 | sym_name = hash->root.root.root.string; | |
| 4554 | } | |
| 4555 | ||
| 4556 | /* Determine what (if any) linker stub is needed. */ | |
| 9a228467 JW |
4557 | stub_type = aarch64_type_of_stub (section, irela, sym_sec, |
| 4558 | st_type, destination); | |
| a06ea964 NC |
4559 | if (stub_type == aarch64_stub_none) |
| 4560 | continue; | |
| 4561 | ||
| 4562 | /* Support for grouping stub sections. */ | |
| 4563 | id_sec = htab->stub_group[section->id].link_sec; | |
| 4564 | ||
| 4565 | /* Get the name of this stub. */ | |
| cec5225b | 4566 | stub_name = elfNN_aarch64_stub_name (id_sec, sym_sec, hash, |
| a06ea964 NC |
4567 | irela); |
| 4568 | if (!stub_name) | |
| 4569 | goto error_ret_free_internal; | |
| 4570 | ||
| 4571 | stub_entry = | |
| 4572 | aarch64_stub_hash_lookup (&htab->stub_hash_table, | |
| 4573 | stub_name, FALSE, FALSE); | |
| 4574 | if (stub_entry != NULL) | |
| 4575 | { | |
| 4576 | /* The proper stub has already been created. */ | |
| 4577 | free (stub_name); | |
| 3da64fe4 RA |
4578 | /* Always update this stub's target since it may have |
| 4579 | changed after layout. */ | |
| 4580 | stub_entry->target_value = sym_value + irela->r_addend; | |
| a06ea964 NC |
4581 | continue; |
| 4582 | } | |
| 4583 | ||
| ef857521 MS |
4584 | stub_entry = _bfd_aarch64_add_stub_entry_in_group |
| 4585 | (stub_name, section, htab); | |
| a06ea964 NC |
4586 | if (stub_entry == NULL) |
| 4587 | { | |
| 4588 | free (stub_name); | |
| 4589 | goto error_ret_free_internal; | |
| 4590 | } | |
| 4591 | ||
| 2f340668 | 4592 | stub_entry->target_value = sym_value + irela->r_addend; |
| a06ea964 NC |
4593 | stub_entry->target_section = sym_sec; |
| 4594 | stub_entry->stub_type = stub_type; | |
| 4595 | stub_entry->h = hash; | |
| 4596 | stub_entry->st_type = st_type; | |
| 4597 | ||
| 4598 | if (sym_name == NULL) | |
| 4599 | sym_name = "unnamed"; | |
| 4600 | len = sizeof (STUB_ENTRY_NAME) + strlen (sym_name); | |
| 4601 | stub_entry->output_name = bfd_alloc (htab->stub_bfd, len); | |
| 4602 | if (stub_entry->output_name == NULL) | |
| 4603 | { | |
| 4604 | free (stub_name); | |
| 4605 | goto error_ret_free_internal; | |
| 4606 | } | |
| 4607 | ||
| 4608 | snprintf (stub_entry->output_name, len, STUB_ENTRY_NAME, | |
| 4609 | sym_name); | |
| 4610 | ||
| 4611 | stub_changed = TRUE; | |
| 4612 | } | |
| 4613 | ||
| 4614 | /* We're done with the internal relocs, free them. */ | |
| 4615 | if (elf_section_data (section)->relocs == NULL) | |
| 4616 | free (internal_relocs); | |
| 4617 | } | |
| 4618 | } | |
| 4619 | ||
| 4620 | if (!stub_changed) | |
| 4621 | break; | |
| 4622 | ||
| 13f622ec | 4623 | _bfd_aarch64_resize_stubs (htab); |
| a06ea964 NC |
4624 | |
| 4625 | /* Ask the linker to do its stuff. */ | |
| 4626 | (*htab->layout_sections_again) (); | |
| 4627 | stub_changed = FALSE; | |
| 4628 | } | |
| 4629 | ||
| 4630 | return TRUE; | |
| 4631 | ||
| dc1e8a47 | 4632 | error_ret_free_local: |
| a06ea964 NC |
4633 | return FALSE; |
| 4634 | } | |
| 4635 | ||
| 4636 | /* Build all the stubs associated with the current output file. The | |
| 4637 | stubs are kept in a hash table attached to the main linker hash | |
| 4638 | table. We also set up the .plt entries for statically linked PIC | |
| 4639 | functions here. This function is called via aarch64_elf_finish in the | |
| 4640 | linker. */ | |
| 4641 | ||
| 4642 | bfd_boolean | |
| cec5225b | 4643 | elfNN_aarch64_build_stubs (struct bfd_link_info *info) |
| a06ea964 NC |
4644 | { |
| 4645 | asection *stub_sec; | |
| 4646 | struct bfd_hash_table *table; | |
| cec5225b | 4647 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 | 4648 | |
| cec5225b | 4649 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
4650 | |
| 4651 | for (stub_sec = htab->stub_bfd->sections; | |
| 4652 | stub_sec != NULL; stub_sec = stub_sec->next) | |
| 4653 | { | |
| 4654 | bfd_size_type size; | |
| 4655 | ||
| 4656 | /* Ignore non-stub sections. */ | |
| 4657 | if (!strstr (stub_sec->name, STUB_SUFFIX)) | |
| 4658 | continue; | |
| 4659 | ||
| 4660 | /* Allocate memory to hold the linker stubs. */ | |
| 4661 | size = stub_sec->size; | |
| 4662 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); | |
| 4663 | if (stub_sec->contents == NULL && size != 0) | |
| 4664 | return FALSE; | |
| 4665 | stub_sec->size = 0; | |
| 61865519 | 4666 | |
| 9a2ebffd JW |
4667 | /* Add a branch around the stub section, and a nop, to keep it 8 byte |
| 4668 | aligned, as long branch stubs contain a 64-bit address. */ | |
| 61865519 | 4669 | bfd_putl32 (0x14000000 | (size >> 2), stub_sec->contents); |
| 9a2ebffd JW |
4670 | bfd_putl32 (INSN_NOP, stub_sec->contents + 4); |
| 4671 | stub_sec->size += 8; | |
| a06ea964 NC |
4672 | } |
| 4673 | ||
| 4674 | /* Build the stubs as directed by the stub hash table. */ | |
| 4675 | table = &htab->stub_hash_table; | |
| 4676 | bfd_hash_traverse (table, aarch64_build_one_stub, info); | |
| 4677 | ||
| 4678 | return TRUE; | |
| 4679 | } | |
| 4680 | ||
| 4681 | ||
| 4682 | /* Add an entry to the code/data map for section SEC. */ | |
| 4683 | ||
| 4684 | static void | |
| cec5225b | 4685 | elfNN_aarch64_section_map_add (asection *sec, char type, bfd_vma vma) |
| a06ea964 NC |
4686 | { |
| 4687 | struct _aarch64_elf_section_data *sec_data = | |
| cec5225b | 4688 | elf_aarch64_section_data (sec); |
| a06ea964 NC |
4689 | unsigned int newidx; |
| 4690 | ||
| 4691 | if (sec_data->map == NULL) | |
| 4692 | { | |
| cec5225b | 4693 | sec_data->map = bfd_malloc (sizeof (elf_aarch64_section_map)); |
| a06ea964 NC |
4694 | sec_data->mapcount = 0; |
| 4695 | sec_data->mapsize = 1; | |
| 4696 | } | |
| 4697 | ||
| 4698 | newidx = sec_data->mapcount++; | |
| 4699 | ||
| 4700 | if (sec_data->mapcount > sec_data->mapsize) | |
| 4701 | { | |
| 4702 | sec_data->mapsize *= 2; | |
| 4703 | sec_data->map = bfd_realloc_or_free | |
| cec5225b | 4704 | (sec_data->map, sec_data->mapsize * sizeof (elf_aarch64_section_map)); |
| a06ea964 NC |
4705 | } |
| 4706 | ||
| 4707 | if (sec_data->map) | |
| 4708 | { | |
| 4709 | sec_data->map[newidx].vma = vma; | |
| 4710 | sec_data->map[newidx].type = type; | |
| 4711 | } | |
| 4712 | } | |
| 4713 | ||
| 4714 | ||
| 4715 | /* Initialise maps of insn/data for input BFDs. */ | |
| 4716 | void | |
| cec5225b | 4717 | bfd_elfNN_aarch64_init_maps (bfd *abfd) |
| a06ea964 NC |
4718 | { |
| 4719 | Elf_Internal_Sym *isymbuf; | |
| 4720 | Elf_Internal_Shdr *hdr; | |
| 4721 | unsigned int i, localsyms; | |
| 4722 | ||
| 4723 | /* Make sure that we are dealing with an AArch64 elf binary. */ | |
| 4724 | if (!is_aarch64_elf (abfd)) | |
| 4725 | return; | |
| 4726 | ||
| 4727 | if ((abfd->flags & DYNAMIC) != 0) | |
| 68fcca92 | 4728 | return; |
| a06ea964 NC |
4729 | |
| 4730 | hdr = &elf_symtab_hdr (abfd); | |
| 4731 | localsyms = hdr->sh_info; | |
| 4732 | ||
| 4733 | /* Obtain a buffer full of symbols for this BFD. The hdr->sh_info field | |
| 4734 | should contain the number of local symbols, which should come before any | |
| 4735 | global symbols. Mapping symbols are always local. */ | |
| 4736 | isymbuf = bfd_elf_get_elf_syms (abfd, hdr, localsyms, 0, NULL, NULL, NULL); | |
| 4737 | ||
| 4738 | /* No internal symbols read? Skip this BFD. */ | |
| 4739 | if (isymbuf == NULL) | |
| 4740 | return; | |
| 4741 | ||
| 4742 | for (i = 0; i < localsyms; i++) | |
| 4743 | { | |
| 4744 | Elf_Internal_Sym *isym = &isymbuf[i]; | |
| 4745 | asection *sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 4746 | const char *name; | |
| 4747 | ||
| 4748 | if (sec != NULL && ELF_ST_BIND (isym->st_info) == STB_LOCAL) | |
| 4749 | { | |
| 4750 | name = bfd_elf_string_from_elf_section (abfd, | |
| 4751 | hdr->sh_link, | |
| 4752 | isym->st_name); | |
| 4753 | ||
| 4754 | if (bfd_is_aarch64_special_symbol_name | |
| 4755 | (name, BFD_AARCH64_SPECIAL_SYM_TYPE_MAP)) | |
| cec5225b | 4756 | elfNN_aarch64_section_map_add (sec, name[1], isym->st_value); |
| a06ea964 NC |
4757 | } |
| 4758 | } | |
| 4759 | } | |
| 4760 | ||
| 37c18eed SD |
4761 | static void |
| 4762 | setup_plt_values (struct bfd_link_info *link_info, | |
| 4763 | aarch64_plt_type plt_type) | |
| 4764 | { | |
| 4765 | struct elf_aarch64_link_hash_table *globals; | |
| 4766 | globals = elf_aarch64_hash_table (link_info); | |
| 4767 | ||
| 1dbade74 SD |
4768 | if (plt_type == PLT_BTI_PAC) |
| 4769 | { | |
| 68bb0359 | 4770 | globals->plt0_entry = elfNN_aarch64_small_plt0_bti_entry; |
| 1dbade74 SD |
4771 | |
| 4772 | /* Only in ET_EXEC we need PLTn with BTI. */ | |
| 4773 | if (bfd_link_pde (link_info)) | |
| 4774 | { | |
| 4775 | globals->plt_entry_size = PLT_BTI_PAC_SMALL_ENTRY_SIZE; | |
| 4776 | globals->plt_entry = elfNN_aarch64_small_plt_bti_pac_entry; | |
| 4777 | } | |
| 4778 | else | |
| 4779 | { | |
| 4780 | globals->plt_entry_size = PLT_PAC_SMALL_ENTRY_SIZE; | |
| 4781 | globals->plt_entry = elfNN_aarch64_small_plt_pac_entry; | |
| 4782 | } | |
| 4783 | } | |
| 4784 | else if (plt_type == PLT_BTI) | |
| 37c18eed | 4785 | { |
| 37c18eed | 4786 | globals->plt0_entry = elfNN_aarch64_small_plt0_bti_entry; |
| 37c18eed SD |
4787 | |
| 4788 | /* Only in ET_EXEC we need PLTn with BTI. */ | |
| 4789 | if (bfd_link_pde (link_info)) | |
| 4790 | { | |
| 4791 | globals->plt_entry_size = PLT_BTI_SMALL_ENTRY_SIZE; | |
| 4792 | globals->plt_entry = elfNN_aarch64_small_plt_bti_entry; | |
| 4793 | } | |
| 4794 | } | |
| 1dbade74 SD |
4795 | else if (plt_type == PLT_PAC) |
| 4796 | { | |
| 1dbade74 SD |
4797 | globals->plt_entry_size = PLT_PAC_SMALL_ENTRY_SIZE; |
| 4798 | globals->plt_entry = elfNN_aarch64_small_plt_pac_entry; | |
| 4799 | } | |
| 37c18eed SD |
4800 | } |
| 4801 | ||
| a06ea964 NC |
4802 | /* Set option values needed during linking. */ |
| 4803 | void | |
| cec5225b | 4804 | bfd_elfNN_aarch64_set_options (struct bfd *output_bfd, |
| a06ea964 NC |
4805 | struct bfd_link_info *link_info, |
| 4806 | int no_enum_warn, | |
| 68fcca92 | 4807 | int no_wchar_warn, int pic_veneer, |
| 4106101c | 4808 | int fix_erratum_835769, |
| 739b5c9c | 4809 | erratum_84319_opts fix_erratum_843419, |
| 37c18eed SD |
4810 | int no_apply_dynamic_relocs, |
| 4811 | aarch64_bti_pac_info bp_info) | |
| a06ea964 | 4812 | { |
| cec5225b | 4813 | struct elf_aarch64_link_hash_table *globals; |
| a06ea964 | 4814 | |
| cec5225b | 4815 | globals = elf_aarch64_hash_table (link_info); |
| a06ea964 | 4816 | globals->pic_veneer = pic_veneer; |
| 68fcca92 | 4817 | globals->fix_erratum_835769 = fix_erratum_835769; |
| 739b5c9c TC |
4818 | /* If the default options are used, then ERRAT_ADR will be set by default |
| 4819 | which will enable the ADRP->ADR workaround for the erratum 843419 | |
| 4820 | workaround. */ | |
| 4106101c | 4821 | globals->fix_erratum_843419 = fix_erratum_843419; |
| 1f56df9d | 4822 | globals->no_apply_dynamic_relocs = no_apply_dynamic_relocs; |
| a06ea964 NC |
4823 | |
| 4824 | BFD_ASSERT (is_aarch64_elf (output_bfd)); | |
| 4825 | elf_aarch64_tdata (output_bfd)->no_enum_size_warning = no_enum_warn; | |
| 4826 | elf_aarch64_tdata (output_bfd)->no_wchar_size_warning = no_wchar_warn; | |
| 37c18eed SD |
4827 | |
| 4828 | switch (bp_info.bti_type) | |
| 4829 | { | |
| 4830 | case BTI_WARN: | |
| 4831 | elf_aarch64_tdata (output_bfd)->no_bti_warn = 0; | |
| 4832 | elf_aarch64_tdata (output_bfd)->gnu_and_prop | |
| 4833 | |= GNU_PROPERTY_AARCH64_FEATURE_1_BTI; | |
| 4834 | break; | |
| 4835 | ||
| 4836 | default: | |
| 4837 | break; | |
| 4838 | } | |
| 4839 | elf_aarch64_tdata (output_bfd)->plt_type = bp_info.plt_type; | |
| 4840 | setup_plt_values (link_info, bp_info.plt_type); | |
| a06ea964 NC |
4841 | } |
| 4842 | ||
| a06ea964 NC |
4843 | static bfd_vma |
| 4844 | aarch64_calculate_got_entry_vma (struct elf_link_hash_entry *h, | |
| cec5225b | 4845 | struct elf_aarch64_link_hash_table |
| a06ea964 NC |
4846 | *globals, struct bfd_link_info *info, |
| 4847 | bfd_vma value, bfd *output_bfd, | |
| 4848 | bfd_boolean *unresolved_reloc_p) | |
| 4849 | { | |
| 4850 | bfd_vma off = (bfd_vma) - 1; | |
| 4851 | asection *basegot = globals->root.sgot; | |
| 4852 | bfd_boolean dyn = globals->root.dynamic_sections_created; | |
| 4853 | ||
| 4854 | if (h != NULL) | |
| 4855 | { | |
| a6bb11b2 | 4856 | BFD_ASSERT (basegot != NULL); |
| a06ea964 NC |
4857 | off = h->got.offset; |
| 4858 | BFD_ASSERT (off != (bfd_vma) - 1); | |
| 0e1862bb L |
4859 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) |
| 4860 | || (bfd_link_pic (info) | |
| a06ea964 NC |
4861 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
| 4862 | || (ELF_ST_VISIBILITY (h->other) | |
| 4863 | && h->root.type == bfd_link_hash_undefweak)) | |
| 4864 | { | |
| 4865 | /* This is actually a static link, or it is a -Bsymbolic link | |
| 4866 | and the symbol is defined locally. We must initialize this | |
| 4867 | entry in the global offset table. Since the offset must | |
| a6bb11b2 YZ |
4868 | always be a multiple of 8 (4 in the case of ILP32), we use |
| 4869 | the least significant bit to record whether we have | |
| 4870 | initialized it already. | |
| a06ea964 NC |
4871 | When doing a dynamic link, we create a .rel(a).got relocation |
| 4872 | entry to initialize the value. This is done in the | |
| 4873 | finish_dynamic_symbol routine. */ | |
| 4874 | if ((off & 1) != 0) | |
| 4875 | off &= ~1; | |
| 4876 | else | |
| 4877 | { | |
| cec5225b | 4878 | bfd_put_NN (output_bfd, value, basegot->contents + off); |
| a06ea964 NC |
4879 | h->got.offset |= 1; |
| 4880 | } | |
| 4881 | } | |
| 4882 | else | |
| 4883 | *unresolved_reloc_p = FALSE; | |
| 4884 | ||
| 4885 | off = off + basegot->output_section->vma + basegot->output_offset; | |
| 4886 | } | |
| 4887 | ||
| 4888 | return off; | |
| 4889 | } | |
| 4890 | ||
| 4891 | /* Change R_TYPE to a more efficient access model where possible, | |
| 4892 | return the new reloc type. */ | |
| 4893 | ||
| a6bb11b2 YZ |
4894 | static bfd_reloc_code_real_type |
| 4895 | aarch64_tls_transition_without_check (bfd_reloc_code_real_type r_type, | |
| a06ea964 NC |
4896 | struct elf_link_hash_entry *h) |
| 4897 | { | |
| 4898 | bfd_boolean is_local = h == NULL; | |
| a6bb11b2 | 4899 | |
| a06ea964 NC |
4900 | switch (r_type) |
| 4901 | { | |
| a6bb11b2 | 4902 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| ce336788 | 4903 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| a6bb11b2 YZ |
4904 | return (is_local |
| 4905 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 | |
| 4906 | : BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21); | |
| 4907 | ||
| 389b8029 MS |
4908 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| 4909 | return (is_local | |
| 4910 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC | |
| 4911 | : r_type); | |
| 4912 | ||
| 1ada945d MS |
4913 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 4914 | return (is_local | |
| 4915 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 | |
| 4916 | : BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19); | |
| 4917 | ||
| 0484b454 RL |
4918 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| 4919 | return (is_local | |
| 4920 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC | |
| 4921 | : BFD_RELOC_AARCH64_NONE); | |
| 4922 | ||
| 4923 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: | |
| 4924 | return (is_local | |
| 4925 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC | |
| 4926 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC); | |
| 4927 | ||
| 4928 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| 4929 | return (is_local | |
| 4930 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2 | |
| 4931 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1); | |
| 4932 | ||
| a6bb11b2 | 4933 | case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC: |
| ce336788 | 4934 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a6bb11b2 YZ |
4935 | return (is_local |
| 4936 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC | |
| 4937 | : BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC); | |
| 4938 | ||
| 4939 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: | |
| 4940 | return is_local ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 : r_type; | |
| 4941 | ||
| 4942 | case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC: | |
| 4943 | return is_local ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC : r_type; | |
| 4944 | ||
| 043bf05a MS |
4945 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 4946 | return r_type; | |
| 4947 | ||
| 3c12b054 MS |
4948 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 4949 | return (is_local | |
| 4950 | ? BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12 | |
| 4951 | : BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19); | |
| 4952 | ||
| 0484b454 | 4953 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| f955cccf | 4954 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 4955 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| a06ea964 | 4956 | /* Instructions with these relocations will become NOPs. */ |
| a6bb11b2 YZ |
4957 | return BFD_RELOC_AARCH64_NONE; |
| 4958 | ||
| 259364ad JW |
4959 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| 4960 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: | |
| 4961 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: | |
| 4962 | return is_local ? BFD_RELOC_AARCH64_NONE : r_type; | |
| 4963 | ||
| ac734732 RL |
4964 | #if ARCH_SIZE == 64 |
| 4965 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: | |
| 4966 | return is_local | |
| 4967 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC | |
| 4968 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC; | |
| 4969 | ||
| 4970 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: | |
| 4971 | return is_local | |
| 4972 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2 | |
| 4973 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1; | |
| 4974 | #endif | |
| 4975 | ||
| a6bb11b2 YZ |
4976 | default: |
| 4977 | break; | |
| a06ea964 NC |
4978 | } |
| 4979 | ||
| 4980 | return r_type; | |
| 4981 | } | |
| 4982 | ||
| 4983 | static unsigned int | |
| a6bb11b2 | 4984 | aarch64_reloc_got_type (bfd_reloc_code_real_type r_type) |
| a06ea964 NC |
4985 | { |
| 4986 | switch (r_type) | |
| 4987 | { | |
| a6bb11b2 YZ |
4988 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 4989 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: | |
| 7018c030 | 4990 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| ce336788 | 4991 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| a2e1db00 | 4992 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 99ad26cb | 4993 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| ce336788 | 4994 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| dc8008f5 | 4995 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 4996 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| a06ea964 NC |
4997 | return GOT_NORMAL; |
| 4998 | ||
| ce336788 | 4999 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a6bb11b2 | 5000 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 5001 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 7ba7cfe4 | 5002 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 5003 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| 73f925cc | 5004 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 5005 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 5006 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
5007 | return GOT_TLS_GD; |
| 5008 | ||
| 0484b454 | 5009 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| f955cccf | 5010 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 5011 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 5012 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| a6bb11b2 | 5013 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| a6bb11b2 | 5014 | case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC: |
| f955cccf | 5015 | case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12: |
| 1ada945d | 5016 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 0484b454 RL |
5017 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| 5018 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: | |
| 5019 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| a06ea964 NC |
5020 | return GOT_TLSDESC_GD; |
| 5021 | ||
| a6bb11b2 | 5022 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a6bb11b2 | 5023 | case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: |
| ce336788 | 5024 | case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: |
| 043bf05a | 5025 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 3b957e5b RL |
5026 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 5027 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| a06ea964 NC |
5028 | return GOT_TLS_IE; |
| 5029 | ||
| a6bb11b2 YZ |
5030 | default: |
| 5031 | break; | |
| a06ea964 NC |
5032 | } |
| 5033 | return GOT_UNKNOWN; | |
| 5034 | } | |
| 5035 | ||
| 5036 | static bfd_boolean | |
| 5037 | aarch64_can_relax_tls (bfd *input_bfd, | |
| 5038 | struct bfd_link_info *info, | |
| a6bb11b2 | 5039 | bfd_reloc_code_real_type r_type, |
| a06ea964 NC |
5040 | struct elf_link_hash_entry *h, |
| 5041 | unsigned long r_symndx) | |
| 5042 | { | |
| 5043 | unsigned int symbol_got_type; | |
| 5044 | unsigned int reloc_got_type; | |
| 5045 | ||
| 9331eea1 | 5046 | if (! IS_AARCH64_TLS_RELAX_RELOC (r_type)) |
| a06ea964 NC |
5047 | return FALSE; |
| 5048 | ||
| cec5225b | 5049 | symbol_got_type = elfNN_aarch64_symbol_got_type (h, input_bfd, r_symndx); |
| a06ea964 NC |
5050 | reloc_got_type = aarch64_reloc_got_type (r_type); |
| 5051 | ||
| 5052 | if (symbol_got_type == GOT_TLS_IE && GOT_TLS_GD_ANY_P (reloc_got_type)) | |
| 5053 | return TRUE; | |
| 5054 | ||
| 6dda7875 | 5055 | if (!bfd_link_executable (info)) |
| a06ea964 NC |
5056 | return FALSE; |
| 5057 | ||
| 5058 | if (h && h->root.type == bfd_link_hash_undefweak) | |
| 5059 | return FALSE; | |
| 5060 | ||
| 5061 | return TRUE; | |
| 5062 | } | |
| 5063 | ||
| a6bb11b2 YZ |
5064 | /* Given the relocation code R_TYPE, return the relaxed bfd reloc |
| 5065 | enumerator. */ | |
| 5066 | ||
| 5067 | static bfd_reloc_code_real_type | |
| a06ea964 NC |
5068 | aarch64_tls_transition (bfd *input_bfd, |
| 5069 | struct bfd_link_info *info, | |
| 5070 | unsigned int r_type, | |
| 5071 | struct elf_link_hash_entry *h, | |
| 5072 | unsigned long r_symndx) | |
| 5073 | { | |
| a6bb11b2 | 5074 | bfd_reloc_code_real_type bfd_r_type |
| 0aa13fee | 5075 | = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| a06ea964 | 5076 | |
| a6bb11b2 YZ |
5077 | if (! aarch64_can_relax_tls (input_bfd, info, bfd_r_type, h, r_symndx)) |
| 5078 | return bfd_r_type; | |
| 5079 | ||
| 5080 | return aarch64_tls_transition_without_check (bfd_r_type, h); | |
| a06ea964 NC |
5081 | } |
| 5082 | ||
| 5083 | /* Return the base VMA address which should be subtracted from real addresses | |
| a6bb11b2 | 5084 | when resolving R_AARCH64_TLS_DTPREL relocation. */ |
| a06ea964 NC |
5085 | |
| 5086 | static bfd_vma | |
| 5087 | dtpoff_base (struct bfd_link_info *info) | |
| 5088 | { | |
| 5089 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
| 5090 | BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL); | |
| 5091 | return elf_hash_table (info)->tls_sec->vma; | |
| 5092 | } | |
| 5093 | ||
| a06ea964 NC |
5094 | /* Return the base VMA address which should be subtracted from real addresses |
| 5095 | when resolving R_AARCH64_TLS_GOTTPREL64 relocations. */ | |
| 5096 | ||
| 5097 | static bfd_vma | |
| 5098 | tpoff_base (struct bfd_link_info *info) | |
| 5099 | { | |
| 5100 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 5101 | ||
| 5102 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
| ac21917f | 5103 | BFD_ASSERT (htab->tls_sec != NULL); |
| a06ea964 NC |
5104 | |
| 5105 | bfd_vma base = align_power ((bfd_vma) TCB_SIZE, | |
| 5106 | htab->tls_sec->alignment_power); | |
| 5107 | return htab->tls_sec->vma - base; | |
| 5108 | } | |
| 5109 | ||
| 5110 | static bfd_vma * | |
| 5111 | symbol_got_offset_ref (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5112 | unsigned long r_symndx) | |
| 5113 | { | |
| 5114 | /* Calculate the address of the GOT entry for symbol | |
| 5115 | referred to in h. */ | |
| 5116 | if (h != NULL) | |
| 5117 | return &h->got.offset; | |
| 5118 | else | |
| 5119 | { | |
| 5120 | /* local symbol */ | |
| 5121 | struct elf_aarch64_local_symbol *l; | |
| 5122 | ||
| cec5225b | 5123 | l = elf_aarch64_locals (input_bfd); |
| a06ea964 NC |
5124 | return &l[r_symndx].got_offset; |
| 5125 | } | |
| 5126 | } | |
| 5127 | ||
| 5128 | static void | |
| 5129 | symbol_got_offset_mark (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5130 | unsigned long r_symndx) | |
| 5131 | { | |
| 5132 | bfd_vma *p; | |
| 5133 | p = symbol_got_offset_ref (input_bfd, h, r_symndx); | |
| 5134 | *p |= 1; | |
| 5135 | } | |
| 5136 | ||
| 5137 | static int | |
| 5138 | symbol_got_offset_mark_p (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5139 | unsigned long r_symndx) | |
| 5140 | { | |
| 5141 | bfd_vma value; | |
| 5142 | value = * symbol_got_offset_ref (input_bfd, h, r_symndx); | |
| 5143 | return value & 1; | |
| 5144 | } | |
| 5145 | ||
| 5146 | static bfd_vma | |
| 5147 | symbol_got_offset (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5148 | unsigned long r_symndx) | |
| 5149 | { | |
| 5150 | bfd_vma value; | |
| 5151 | value = * symbol_got_offset_ref (input_bfd, h, r_symndx); | |
| 5152 | value &= ~1; | |
| 5153 | return value; | |
| 5154 | } | |
| 5155 | ||
| 5156 | static bfd_vma * | |
| 5157 | symbol_tlsdesc_got_offset_ref (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5158 | unsigned long r_symndx) | |
| 5159 | { | |
| 5160 | /* Calculate the address of the GOT entry for symbol | |
| 5161 | referred to in h. */ | |
| 5162 | if (h != NULL) | |
| 5163 | { | |
| cec5225b YZ |
5164 | struct elf_aarch64_link_hash_entry *eh; |
| 5165 | eh = (struct elf_aarch64_link_hash_entry *) h; | |
| a06ea964 NC |
5166 | return &eh->tlsdesc_got_jump_table_offset; |
| 5167 | } | |
| 5168 | else | |
| 5169 | { | |
| 5170 | /* local symbol */ | |
| 5171 | struct elf_aarch64_local_symbol *l; | |
| 5172 | ||
| cec5225b | 5173 | l = elf_aarch64_locals (input_bfd); |
| a06ea964 NC |
5174 | return &l[r_symndx].tlsdesc_got_jump_table_offset; |
| 5175 | } | |
| 5176 | } | |
| 5177 | ||
| 5178 | static void | |
| 5179 | symbol_tlsdesc_got_offset_mark (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5180 | unsigned long r_symndx) | |
| 5181 | { | |
| 5182 | bfd_vma *p; | |
| 5183 | p = symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx); | |
| 5184 | *p |= 1; | |
| 5185 | } | |
| 5186 | ||
| 5187 | static int | |
| 5188 | symbol_tlsdesc_got_offset_mark_p (bfd *input_bfd, | |
| 5189 | struct elf_link_hash_entry *h, | |
| 5190 | unsigned long r_symndx) | |
| 5191 | { | |
| 5192 | bfd_vma value; | |
| 5193 | value = * symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx); | |
| 5194 | return value & 1; | |
| 5195 | } | |
| 5196 | ||
| 5197 | static bfd_vma | |
| 5198 | symbol_tlsdesc_got_offset (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5199 | unsigned long r_symndx) | |
| 5200 | { | |
| 5201 | bfd_vma value; | |
| 5202 | value = * symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx); | |
| 5203 | value &= ~1; | |
| 5204 | return value; | |
| 5205 | } | |
| 5206 | ||
| 68fcca92 JW |
5207 | /* Data for make_branch_to_erratum_835769_stub(). */ |
| 5208 | ||
| 5209 | struct erratum_835769_branch_to_stub_data | |
| 5210 | { | |
| 4106101c | 5211 | struct bfd_link_info *info; |
| 68fcca92 JW |
5212 | asection *output_section; |
| 5213 | bfd_byte *contents; | |
| 5214 | }; | |
| 5215 | ||
| 5216 | /* Helper to insert branches to erratum 835769 stubs in the right | |
| 5217 | places for a particular section. */ | |
| 5218 | ||
| 5219 | static bfd_boolean | |
| 5220 | make_branch_to_erratum_835769_stub (struct bfd_hash_entry *gen_entry, | |
| 5221 | void *in_arg) | |
| 5222 | { | |
| 5223 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 5224 | struct erratum_835769_branch_to_stub_data *data; | |
| 5225 | bfd_byte *contents; | |
| 5226 | unsigned long branch_insn = 0; | |
| 5227 | bfd_vma veneered_insn_loc, veneer_entry_loc; | |
| 5228 | bfd_signed_vma branch_offset; | |
| 5229 | unsigned int target; | |
| 5230 | bfd *abfd; | |
| 5231 | ||
| 5232 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; | |
| 5233 | data = (struct erratum_835769_branch_to_stub_data *) in_arg; | |
| 5234 | ||
| 5235 | if (stub_entry->target_section != data->output_section | |
| 5236 | || stub_entry->stub_type != aarch64_stub_erratum_835769_veneer) | |
| 5237 | return TRUE; | |
| 5238 | ||
| 5239 | contents = data->contents; | |
| 5240 | veneered_insn_loc = stub_entry->target_section->output_section->vma | |
| 5241 | + stub_entry->target_section->output_offset | |
| 5242 | + stub_entry->target_value; | |
| 5243 | veneer_entry_loc = stub_entry->stub_sec->output_section->vma | |
| 5244 | + stub_entry->stub_sec->output_offset | |
| 5245 | + stub_entry->stub_offset; | |
| 5246 | branch_offset = veneer_entry_loc - veneered_insn_loc; | |
| 5247 | ||
| 5248 | abfd = stub_entry->target_section->owner; | |
| 5249 | if (!aarch64_valid_branch_p (veneer_entry_loc, veneered_insn_loc)) | |
| 4eca0228 | 5250 | _bfd_error_handler |
| 90b6238f | 5251 | (_("%pB: error: erratum 835769 stub out " |
| 4eca0228 | 5252 | "of range (input file too large)"), abfd); |
| 68fcca92 JW |
5253 | |
| 5254 | target = stub_entry->target_value; | |
| 5255 | branch_insn = 0x14000000; | |
| 5256 | branch_offset >>= 2; | |
| 5257 | branch_offset &= 0x3ffffff; | |
| 5258 | branch_insn |= branch_offset; | |
| 5259 | bfd_putl32 (branch_insn, &contents[target]); | |
| 5260 | ||
| 5261 | return TRUE; | |
| 5262 | } | |
| 5263 | ||
| 4106101c MS |
5264 | |
| 5265 | static bfd_boolean | |
| 5266 | _bfd_aarch64_erratum_843419_branch_to_stub (struct bfd_hash_entry *gen_entry, | |
| 5267 | void *in_arg) | |
| 5268 | { | |
| 5269 | struct elf_aarch64_stub_hash_entry *stub_entry | |
| 5270 | = (struct elf_aarch64_stub_hash_entry *) gen_entry; | |
| 5271 | struct erratum_835769_branch_to_stub_data *data | |
| 5272 | = (struct erratum_835769_branch_to_stub_data *) in_arg; | |
| 5273 | struct bfd_link_info *info; | |
| 5274 | struct elf_aarch64_link_hash_table *htab; | |
| 5275 | bfd_byte *contents; | |
| 5276 | asection *section; | |
| 5277 | bfd *abfd; | |
| 5278 | bfd_vma place; | |
| 5279 | uint32_t insn; | |
| 5280 | ||
| 5281 | info = data->info; | |
| 5282 | contents = data->contents; | |
| 5283 | section = data->output_section; | |
| 5284 | ||
| 5285 | htab = elf_aarch64_hash_table (info); | |
| 5286 | ||
| 5287 | if (stub_entry->target_section != section | |
| 5288 | || stub_entry->stub_type != aarch64_stub_erratum_843419_veneer) | |
| 5289 | return TRUE; | |
| 5290 | ||
| 739b5c9c TC |
5291 | BFD_ASSERT (((htab->fix_erratum_843419 & ERRAT_ADRP) && stub_entry->stub_sec) |
| 5292 | || (htab->fix_erratum_843419 & ERRAT_ADR)); | |
| 5293 | ||
| 5294 | /* Only update the stub section if we have one. We should always have one if | |
| 5295 | we're allowed to use the ADRP errata workaround, otherwise it is not | |
| 5296 | required. */ | |
| 5297 | if (stub_entry->stub_sec) | |
| 5298 | { | |
| 5299 | insn = bfd_getl32 (contents + stub_entry->target_value); | |
| 5300 | bfd_putl32 (insn, | |
| 5301 | stub_entry->stub_sec->contents + stub_entry->stub_offset); | |
| 5302 | } | |
| 4106101c MS |
5303 | |
| 5304 | place = (section->output_section->vma + section->output_offset | |
| 5305 | + stub_entry->adrp_offset); | |
| 5306 | insn = bfd_getl32 (contents + stub_entry->adrp_offset); | |
| 5307 | ||
| 9fca35fc | 5308 | if (!_bfd_aarch64_adrp_p (insn)) |
| 4106101c MS |
5309 | abort (); |
| 5310 | ||
| 5311 | bfd_signed_vma imm = | |
| 5312 | (_bfd_aarch64_sign_extend | |
| 5313 | ((bfd_vma) _bfd_aarch64_decode_adrp_imm (insn) << 12, 33) | |
| 5314 | - (place & 0xfff)); | |
| 5315 | ||
| 739b5c9c | 5316 | if ((htab->fix_erratum_843419 & ERRAT_ADR) |
| 4106101c MS |
5317 | && (imm >= AARCH64_MIN_ADRP_IMM && imm <= AARCH64_MAX_ADRP_IMM)) |
| 5318 | { | |
| 5319 | insn = (_bfd_aarch64_reencode_adr_imm (AARCH64_ADR_OP, imm) | |
| 5320 | | AARCH64_RT (insn)); | |
| 5321 | bfd_putl32 (insn, contents + stub_entry->adrp_offset); | |
| 739b5c9c TC |
5322 | /* Stub is not needed, don't map it out. */ |
| 5323 | stub_entry->stub_type = aarch64_stub_none; | |
| 4106101c | 5324 | } |
| 739b5c9c | 5325 | else if (htab->fix_erratum_843419 & ERRAT_ADRP) |
| 4106101c MS |
5326 | { |
| 5327 | bfd_vma veneered_insn_loc; | |
| 5328 | bfd_vma veneer_entry_loc; | |
| 5329 | bfd_signed_vma branch_offset; | |
| 5330 | uint32_t branch_insn; | |
| 5331 | ||
| 5332 | veneered_insn_loc = stub_entry->target_section->output_section->vma | |
| 5333 | + stub_entry->target_section->output_offset | |
| 5334 | + stub_entry->target_value; | |
| 5335 | veneer_entry_loc = stub_entry->stub_sec->output_section->vma | |
| 5336 | + stub_entry->stub_sec->output_offset | |
| 5337 | + stub_entry->stub_offset; | |
| 5338 | branch_offset = veneer_entry_loc - veneered_insn_loc; | |
| 5339 | ||
| 5340 | abfd = stub_entry->target_section->owner; | |
| 5341 | if (!aarch64_valid_branch_p (veneer_entry_loc, veneered_insn_loc)) | |
| 4eca0228 | 5342 | _bfd_error_handler |
| 90b6238f | 5343 | (_("%pB: error: erratum 843419 stub out " |
| 4106101c MS |
5344 | "of range (input file too large)"), abfd); |
| 5345 | ||
| 5346 | branch_insn = 0x14000000; | |
| 5347 | branch_offset >>= 2; | |
| 5348 | branch_offset &= 0x3ffffff; | |
| 5349 | branch_insn |= branch_offset; | |
| 5350 | bfd_putl32 (branch_insn, contents + stub_entry->target_value); | |
| 5351 | } | |
| 739b5c9c TC |
5352 | else |
| 5353 | { | |
| 5354 | abfd = stub_entry->target_section->owner; | |
| 5355 | _bfd_error_handler | |
| 64672071 | 5356 | (_("%pB: error: erratum 843419 immediate 0x%" BFD_VMA_FMT "x " |
| 739b5c9c TC |
5357 | "out of range for ADR (input file too large) and " |
| 5358 | "--fix-cortex-a53-843419=adr used. Run the linker with " | |
| 5359 | "--fix-cortex-a53-843419=full instead"), abfd, imm); | |
| 5360 | bfd_set_error (bfd_error_bad_value); | |
| 5361 | /* This function is called inside a hashtable traversal and the error | |
| 5362 | handlers called above turn into non-fatal errors. Which means this | |
| 5363 | case ld returns an exit code 0 and also produces a broken object file. | |
| 5364 | To prevent this, issue a hard abort. */ | |
| 5365 | BFD_FAIL (); | |
| 5366 | } | |
| 4106101c MS |
5367 | return TRUE; |
| 5368 | } | |
| 5369 | ||
| 5370 | ||
| 68fcca92 JW |
5371 | static bfd_boolean |
| 5372 | elfNN_aarch64_write_section (bfd *output_bfd ATTRIBUTE_UNUSED, | |
| 5373 | struct bfd_link_info *link_info, | |
| 5374 | asection *sec, | |
| 5375 | bfd_byte *contents) | |
| 5376 | ||
| 5377 | { | |
| 5378 | struct elf_aarch64_link_hash_table *globals = | |
| f872121a | 5379 | elf_aarch64_hash_table (link_info); |
| 68fcca92 JW |
5380 | |
| 5381 | if (globals == NULL) | |
| 5382 | return FALSE; | |
| 5383 | ||
| 5384 | /* Fix code to point to erratum 835769 stubs. */ | |
| 5385 | if (globals->fix_erratum_835769) | |
| 5386 | { | |
| 5387 | struct erratum_835769_branch_to_stub_data data; | |
| 5388 | ||
| 4106101c | 5389 | data.info = link_info; |
| 68fcca92 JW |
5390 | data.output_section = sec; |
| 5391 | data.contents = contents; | |
| 5392 | bfd_hash_traverse (&globals->stub_hash_table, | |
| 5393 | make_branch_to_erratum_835769_stub, &data); | |
| 5394 | } | |
| 5395 | ||
| 4106101c MS |
5396 | if (globals->fix_erratum_843419) |
| 5397 | { | |
| 5398 | struct erratum_835769_branch_to_stub_data data; | |
| 5399 | ||
| 5400 | data.info = link_info; | |
| 5401 | data.output_section = sec; | |
| 5402 | data.contents = contents; | |
| 5403 | bfd_hash_traverse (&globals->stub_hash_table, | |
| 5404 | _bfd_aarch64_erratum_843419_branch_to_stub, &data); | |
| 5405 | } | |
| 5406 | ||
| 68fcca92 JW |
5407 | return FALSE; |
| 5408 | } | |
| 5409 | ||
| 2aff25ba JW |
5410 | /* Return TRUE if RELOC is a relocation against the base of GOT table. */ |
| 5411 | ||
| 5412 | static bfd_boolean | |
| 5413 | aarch64_relocation_aginst_gp_p (bfd_reloc_code_real_type reloc) | |
| 5414 | { | |
| 5415 | return (reloc == BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14 | |
| 5416 | || reloc == BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15 | |
| 5417 | || reloc == BFD_RELOC_AARCH64_LD64_GOTOFF_LO15 | |
| 5418 | || reloc == BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC | |
| 5419 | || reloc == BFD_RELOC_AARCH64_MOVW_GOTOFF_G1); | |
| 5420 | } | |
| 5421 | ||
| 4e7fbb34 JW |
5422 | /* Perform a relocation as part of a final link. The input relocation type |
| 5423 | should be TLS relaxed. */ | |
| 5424 | ||
| a06ea964 | 5425 | static bfd_reloc_status_type |
| cec5225b | 5426 | elfNN_aarch64_final_link_relocate (reloc_howto_type *howto, |
| a06ea964 NC |
5427 | bfd *input_bfd, |
| 5428 | bfd *output_bfd, | |
| 5429 | asection *input_section, | |
| 5430 | bfd_byte *contents, | |
| 5431 | Elf_Internal_Rela *rel, | |
| 5432 | bfd_vma value, | |
| 5433 | struct bfd_link_info *info, | |
| 5434 | asection *sym_sec, | |
| 5435 | struct elf_link_hash_entry *h, | |
| 5436 | bfd_boolean *unresolved_reloc_p, | |
| 5437 | bfd_boolean save_addend, | |
| 1419bbe5 WN |
5438 | bfd_vma *saved_addend, |
| 5439 | Elf_Internal_Sym *sym) | |
| a06ea964 | 5440 | { |
| 1419bbe5 | 5441 | Elf_Internal_Shdr *symtab_hdr; |
| a06ea964 | 5442 | unsigned int r_type = howto->type; |
| a6bb11b2 YZ |
5443 | bfd_reloc_code_real_type bfd_r_type |
| 5444 | = elfNN_aarch64_bfd_reloc_from_howto (howto); | |
| a06ea964 NC |
5445 | unsigned long r_symndx; |
| 5446 | bfd_byte *hit_data = contents + rel->r_offset; | |
| 96d01d93 | 5447 | bfd_vma place, off, got_entry_addr = 0; |
| a06ea964 | 5448 | bfd_signed_vma signed_addend; |
| cec5225b | 5449 | struct elf_aarch64_link_hash_table *globals; |
| a06ea964 | 5450 | bfd_boolean weak_undef_p; |
| ff07562f | 5451 | bfd_boolean relative_reloc; |
| b53b1bed | 5452 | asection *base_got; |
| ff07562f | 5453 | bfd_vma orig_value = value; |
| ddb7fd0f | 5454 | bfd_boolean resolved_to_zero; |
| 0c1ded8d | 5455 | bfd_boolean abs_symbol_p; |
| a06ea964 | 5456 | |
| cec5225b | 5457 | globals = elf_aarch64_hash_table (info); |
| a06ea964 | 5458 | |
| 1419bbe5 WN |
5459 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5460 | ||
| a06ea964 NC |
5461 | BFD_ASSERT (is_aarch64_elf (input_bfd)); |
| 5462 | ||
| cec5225b | 5463 | r_symndx = ELFNN_R_SYM (rel->r_info); |
| a06ea964 | 5464 | |
| a06ea964 NC |
5465 | place = input_section->output_section->vma |
| 5466 | + input_section->output_offset + rel->r_offset; | |
| 5467 | ||
| 5468 | /* Get addend, accumulating the addend for consecutive relocs | |
| 5469 | which refer to the same offset. */ | |
| 5470 | signed_addend = saved_addend ? *saved_addend : 0; | |
| 5471 | signed_addend += rel->r_addend; | |
| 5472 | ||
| 5473 | weak_undef_p = (h ? h->root.type == bfd_link_hash_undefweak | |
| 5474 | : bfd_is_und_section (sym_sec)); | |
| c691de6a | 5475 | abs_symbol_p = h != NULL && bfd_is_abs_symbol (&h->root); |
| 0c1ded8d | 5476 | |
| a6bb11b2 | 5477 | |
| 1419bbe5 WN |
5478 | /* Since STT_GNU_IFUNC symbol must go through PLT, we handle |
| 5479 | it here if it is defined in a non-shared object. */ | |
| 5480 | if (h != NULL | |
| 5481 | && h->type == STT_GNU_IFUNC | |
| 5482 | && h->def_regular) | |
| 5483 | { | |
| 5484 | asection *plt; | |
| 5485 | const char *name; | |
| 99ad26cb | 5486 | bfd_vma addend = 0; |
| 1419bbe5 | 5487 | |
| 545bc2b3 SN |
5488 | if ((input_section->flags & SEC_ALLOC) == 0) |
| 5489 | { | |
| f657f8c4 NC |
5490 | /* If this is a SHT_NOTE section without SHF_ALLOC, treat |
| 5491 | STT_GNU_IFUNC symbol as STT_FUNC. */ | |
| 5492 | if (elf_section_type (input_section) == SHT_NOTE) | |
| 5493 | goto skip_ifunc; | |
| 5494 | ||
| 545bc2b3 SN |
5495 | /* Dynamic relocs are not propagated for SEC_DEBUGGING |
| 5496 | sections because such sections are not SEC_ALLOC and | |
| 5497 | thus ld.so will not process them. */ | |
| 5498 | if ((input_section->flags & SEC_DEBUGGING) != 0) | |
| 5499 | return bfd_reloc_ok; | |
| 5500 | ||
| 5501 | if (h->root.root.string) | |
| 5502 | name = h->root.root.string; | |
| 5503 | else | |
| 5504 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, NULL); | |
| 5505 | _bfd_error_handler | |
| 5506 | /* xgettext:c-format */ | |
| 2dcf00ce AM |
5507 | (_("%pB(%pA+%#" PRIx64 "): " |
| 5508 | "unresolvable %s relocation against symbol `%s'"), | |
| 5509 | input_bfd, input_section, (uint64_t) rel->r_offset, | |
| 5510 | howto->name, name); | |
| 545bc2b3 | 5511 | bfd_set_error (bfd_error_bad_value); |
| 1d75a8e2 | 5512 | return bfd_reloc_notsupported; |
| 545bc2b3 SN |
5513 | } |
| 5514 | else if (h->plt.offset == (bfd_vma) -1) | |
| 5515 | goto bad_ifunc_reloc; | |
| 1419bbe5 WN |
5516 | |
| 5517 | /* STT_GNU_IFUNC symbol must go through PLT. */ | |
| 5518 | plt = globals->root.splt ? globals->root.splt : globals->root.iplt; | |
| 5519 | value = (plt->output_section->vma + plt->output_offset + h->plt.offset); | |
| 5520 | ||
| 5521 | switch (bfd_r_type) | |
| 5522 | { | |
| 5523 | default: | |
| dc1e8a47 | 5524 | bad_ifunc_reloc: |
| 1419bbe5 WN |
5525 | if (h->root.root.string) |
| 5526 | name = h->root.root.string; | |
| 5527 | else | |
| 5528 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, | |
| 5529 | NULL); | |
| 4eca0228 | 5530 | _bfd_error_handler |
| 695344c0 | 5531 | /* xgettext:c-format */ |
| 871b3ab2 | 5532 | (_("%pB: relocation %s against STT_GNU_IFUNC " |
| 1419bbe5 WN |
5533 | "symbol `%s' isn't handled by %s"), input_bfd, |
| 5534 | howto->name, name, __FUNCTION__); | |
| 5535 | bfd_set_error (bfd_error_bad_value); | |
| 1d75a8e2 | 5536 | return bfd_reloc_notsupported; |
| 1419bbe5 WN |
5537 | |
| 5538 | case BFD_RELOC_AARCH64_NN: | |
| 5539 | if (rel->r_addend != 0) | |
| 5540 | { | |
| 5541 | if (h->root.root.string) | |
| 5542 | name = h->root.root.string; | |
| 5543 | else | |
| 5544 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, | |
| 5545 | sym, NULL); | |
| 4eca0228 | 5546 | _bfd_error_handler |
| 695344c0 | 5547 | /* xgettext:c-format */ |
| 871b3ab2 | 5548 | (_("%pB: relocation %s against STT_GNU_IFUNC " |
| 2dcf00ce AM |
5549 | "symbol `%s' has non-zero addend: %" PRId64), |
| 5550 | input_bfd, howto->name, name, (int64_t) rel->r_addend); | |
| 1419bbe5 | 5551 | bfd_set_error (bfd_error_bad_value); |
| 1d75a8e2 | 5552 | return bfd_reloc_notsupported; |
| 1419bbe5 WN |
5553 | } |
| 5554 | ||
| 5555 | /* Generate dynamic relocation only when there is a | |
| 5556 | non-GOT reference in a shared object. */ | |
| 0e1862bb | 5557 | if (bfd_link_pic (info) && h->non_got_ref) |
| 1419bbe5 WN |
5558 | { |
| 5559 | Elf_Internal_Rela outrel; | |
| 5560 | asection *sreloc; | |
| 5561 | ||
| 5562 | /* Need a dynamic relocation to get the real function | |
| 5563 | address. */ | |
| 5564 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, | |
| 5565 | info, | |
| 5566 | input_section, | |
| 5567 | rel->r_offset); | |
| 5568 | if (outrel.r_offset == (bfd_vma) -1 | |
| 5569 | || outrel.r_offset == (bfd_vma) -2) | |
| 5570 | abort (); | |
| 5571 | ||
| 5572 | outrel.r_offset += (input_section->output_section->vma | |
| 5573 | + input_section->output_offset); | |
| 5574 | ||
| 5575 | if (h->dynindx == -1 | |
| 5576 | || h->forced_local | |
| 0e1862bb | 5577 | || bfd_link_executable (info)) |
| 1419bbe5 WN |
5578 | { |
| 5579 | /* This symbol is resolved locally. */ | |
| 5580 | outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (IRELATIVE)); | |
| 5581 | outrel.r_addend = (h->root.u.def.value | |
| 5582 | + h->root.u.def.section->output_section->vma | |
| 5583 | + h->root.u.def.section->output_offset); | |
| 5584 | } | |
| 5585 | else | |
| 5586 | { | |
| 5587 | outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type); | |
| 5588 | outrel.r_addend = 0; | |
| 5589 | } | |
| 5590 | ||
| 5591 | sreloc = globals->root.irelifunc; | |
| 5592 | elf_append_rela (output_bfd, sreloc, &outrel); | |
| 5593 | ||
| 5594 | /* If this reloc is against an external symbol, we | |
| 5595 | do not want to fiddle with the addend. Otherwise, | |
| 5596 | we need to include the symbol value so that it | |
| 5597 | becomes an addend for the dynamic reloc. For an | |
| 5598 | internal symbol, we have updated addend. */ | |
| 5599 | return bfd_reloc_ok; | |
| 5600 | } | |
| 5601 | /* FALLTHROUGH */ | |
| 1419bbe5 | 5602 | case BFD_RELOC_AARCH64_CALL26: |
| ce336788 | 5603 | case BFD_RELOC_AARCH64_JUMP26: |
| 652afeef TC |
5604 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5605 | place, value, | |
| 1419bbe5 WN |
5606 | signed_addend, |
| 5607 | weak_undef_p); | |
| 5608 | return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type, | |
| 5609 | howto, value); | |
| 1419bbe5 WN |
5610 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 5611 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: | |
| 7018c030 | 5612 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| ce336788 | 5613 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| 99ad26cb | 5614 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| dc8008f5 | 5615 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 5616 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| a2e1db00 | 5617 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| ce336788 | 5618 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| 1419bbe5 WN |
5619 | base_got = globals->root.sgot; |
| 5620 | off = h->got.offset; | |
| 5621 | ||
| 5622 | if (base_got == NULL) | |
| 5623 | abort (); | |
| 5624 | ||
| 5625 | if (off == (bfd_vma) -1) | |
| 5626 | { | |
| 5627 | bfd_vma plt_index; | |
| 5628 | ||
| 5629 | /* We can't use h->got.offset here to save state, or | |
| 5630 | even just remember the offset, as finish_dynamic_symbol | |
| 5631 | would use that as offset into .got. */ | |
| 5632 | ||
| 5633 | if (globals->root.splt != NULL) | |
| 5634 | { | |
| b1ee0cc4 WN |
5635 | plt_index = ((h->plt.offset - globals->plt_header_size) / |
| 5636 | globals->plt_entry_size); | |
| 1419bbe5 WN |
5637 | off = (plt_index + 3) * GOT_ENTRY_SIZE; |
| 5638 | base_got = globals->root.sgotplt; | |
| 5639 | } | |
| 5640 | else | |
| 5641 | { | |
| 5642 | plt_index = h->plt.offset / globals->plt_entry_size; | |
| 5643 | off = plt_index * GOT_ENTRY_SIZE; | |
| 5644 | base_got = globals->root.igotplt; | |
| 5645 | } | |
| 5646 | ||
| 5647 | if (h->dynindx == -1 | |
| 5648 | || h->forced_local | |
| 5649 | || info->symbolic) | |
| 5650 | { | |
| 5651 | /* This references the local definition. We must | |
| 5652 | initialize this entry in the global offset table. | |
| 5653 | Since the offset must always be a multiple of 8, | |
| 5654 | we use the least significant bit to record | |
| 5655 | whether we have initialized it already. | |
| 5656 | ||
| 5657 | When doing a dynamic link, we create a .rela.got | |
| 5658 | relocation entry to initialize the value. This | |
| 5659 | is done in the finish_dynamic_symbol routine. */ | |
| 5660 | if ((off & 1) != 0) | |
| 5661 | off &= ~1; | |
| 5662 | else | |
| 5663 | { | |
| 5664 | bfd_put_NN (output_bfd, value, | |
| 5665 | base_got->contents + off); | |
| 5666 | /* Note that this is harmless as -1 | 1 still is -1. */ | |
| 5667 | h->got.offset |= 1; | |
| 5668 | } | |
| 5669 | } | |
| 5670 | value = (base_got->output_section->vma | |
| 5671 | + base_got->output_offset + off); | |
| 5672 | } | |
| 5673 | else | |
| 5674 | value = aarch64_calculate_got_entry_vma (h, globals, info, | |
| 5675 | value, output_bfd, | |
| 5676 | unresolved_reloc_p); | |
| a0becb89 | 5677 | |
| 2aff25ba JW |
5678 | if (aarch64_relocation_aginst_gp_p (bfd_r_type)) |
| 5679 | addend = (globals->root.sgot->output_section->vma | |
| 5680 | + globals->root.sgot->output_offset); | |
| a0becb89 | 5681 | |
| 652afeef TC |
5682 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5683 | place, value, | |
| 99ad26cb | 5684 | addend, weak_undef_p); |
| 1419bbe5 | 5685 | return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type, howto, value); |
| 1419bbe5 | 5686 | case BFD_RELOC_AARCH64_ADD_LO12: |
| ce336788 | 5687 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: |
| 1419bbe5 WN |
5688 | break; |
| 5689 | } | |
| 5690 | } | |
| 5691 | ||
| f657f8c4 | 5692 | skip_ifunc: |
| ddb7fd0f L |
5693 | resolved_to_zero = (h != NULL |
| 5694 | && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); | |
| 5695 | ||
| a6bb11b2 | 5696 | switch (bfd_r_type) |
| a06ea964 | 5697 | { |
| a6bb11b2 | 5698 | case BFD_RELOC_AARCH64_NONE: |
| 0484b454 | 5699 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| a6bb11b2 | 5700 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| 0484b454 | 5701 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| a06ea964 NC |
5702 | *unresolved_reloc_p = FALSE; |
| 5703 | return bfd_reloc_ok; | |
| 5704 | ||
| a6bb11b2 | 5705 | case BFD_RELOC_AARCH64_NN: |
| a06ea964 NC |
5706 | |
| 5707 | /* When generating a shared object or relocatable executable, these | |
| 07d6d2b8 AM |
5708 | relocations are copied into the output file to be resolved at |
| 5709 | run time. */ | |
| 6353d82b JW |
5710 | if (((bfd_link_pic (info) |
| 5711 | || globals->root.is_relocatable_executable) | |
| 5712 | && (input_section->flags & SEC_ALLOC) | |
| 5713 | && (h == NULL | |
| ddb7fd0f L |
5714 | || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
| 5715 | && !resolved_to_zero) | |
| 6353d82b JW |
5716 | || h->root.type != bfd_link_hash_undefweak)) |
| 5717 | /* Or we are creating an executable, we may need to keep relocations | |
| 5718 | for symbols satisfied by a dynamic library if we manage to avoid | |
| 5719 | copy relocs for the symbol. */ | |
| 5720 | || (ELIMINATE_COPY_RELOCS | |
| 5721 | && !bfd_link_pic (info) | |
| 5722 | && h != NULL | |
| 5723 | && (input_section->flags & SEC_ALLOC) | |
| 5724 | && h->dynindx != -1 | |
| 5725 | && !h->non_got_ref | |
| 5726 | && ((h->def_dynamic | |
| 5727 | && !h->def_regular) | |
| 5728 | || h->root.type == bfd_link_hash_undefweak | |
| 5729 | || h->root.type == bfd_link_hash_undefined))) | |
| a06ea964 NC |
5730 | { |
| 5731 | Elf_Internal_Rela outrel; | |
| 5732 | bfd_byte *loc; | |
| 5733 | bfd_boolean skip, relocate; | |
| 5734 | asection *sreloc; | |
| 5735 | ||
| 5736 | *unresolved_reloc_p = FALSE; | |
| 5737 | ||
| a06ea964 NC |
5738 | skip = FALSE; |
| 5739 | relocate = FALSE; | |
| 5740 | ||
| 5741 | outrel.r_addend = signed_addend; | |
| 5742 | outrel.r_offset = | |
| 5743 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 5744 | rel->r_offset); | |
| 5745 | if (outrel.r_offset == (bfd_vma) - 1) | |
| 5746 | skip = TRUE; | |
| 5747 | else if (outrel.r_offset == (bfd_vma) - 2) | |
| 5748 | { | |
| 5749 | skip = TRUE; | |
| 5750 | relocate = TRUE; | |
| 5751 | } | |
| 0c1ded8d RL |
5752 | else if (abs_symbol_p) |
| 5753 | { | |
| 5754 | /* Local absolute symbol. */ | |
| 5755 | skip = (h->forced_local || (h->dynindx == -1)); | |
| 5756 | relocate = skip; | |
| 5757 | } | |
| a06ea964 NC |
5758 | |
| 5759 | outrel.r_offset += (input_section->output_section->vma | |
| 5760 | + input_section->output_offset); | |
| 5761 | ||
| 5762 | if (skip) | |
| 5763 | memset (&outrel, 0, sizeof outrel); | |
| 5764 | else if (h != NULL | |
| 5765 | && h->dynindx != -1 | |
| 0e1862bb | 5766 | && (!bfd_link_pic (info) |
| 0c1ded8d | 5767 | || !(bfd_link_pie (info) || SYMBOLIC_BIND (info, h)) |
| 0e1862bb | 5768 | || !h->def_regular)) |
| cec5225b | 5769 | outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type); |
| a06ea964 NC |
5770 | else |
| 5771 | { | |
| 5772 | int symbol; | |
| 5773 | ||
| 5774 | /* On SVR4-ish systems, the dynamic loader cannot | |
| 5775 | relocate the text and data segments independently, | |
| 5776 | so the symbol does not matter. */ | |
| 5777 | symbol = 0; | |
| 1f56df9d | 5778 | relocate = globals->no_apply_dynamic_relocs ? FALSE : TRUE; |
| a6bb11b2 | 5779 | outrel.r_info = ELFNN_R_INFO (symbol, AARCH64_R (RELATIVE)); |
| a06ea964 NC |
5780 | outrel.r_addend += value; |
| 5781 | } | |
| 5782 | ||
| 1419bbe5 WN |
5783 | sreloc = elf_section_data (input_section)->sreloc; |
| 5784 | if (sreloc == NULL || sreloc->contents == NULL) | |
| 5785 | return bfd_reloc_notsupported; | |
| 5786 | ||
| 5787 | loc = sreloc->contents + sreloc->reloc_count++ * RELOC_SIZE (globals); | |
| cec5225b | 5788 | bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc); |
| a06ea964 | 5789 | |
| 1419bbe5 | 5790 | if (sreloc->reloc_count * RELOC_SIZE (globals) > sreloc->size) |
| a06ea964 NC |
5791 | { |
| 5792 | /* Sanity to check that we have previously allocated | |
| 5793 | sufficient space in the relocation section for the | |
| 5794 | number of relocations we actually want to emit. */ | |
| 5795 | abort (); | |
| 5796 | } | |
| 5797 | ||
| 5798 | /* If this reloc is against an external symbol, we do not want to | |
| 5799 | fiddle with the addend. Otherwise, we need to include the symbol | |
| 5800 | value so that it becomes an addend for the dynamic reloc. */ | |
| 5801 | if (!relocate) | |
| 5802 | return bfd_reloc_ok; | |
| 5803 | ||
| 5804 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
| 5805 | contents, rel->r_offset, value, | |
| 5806 | signed_addend); | |
| 5807 | } | |
| 5808 | else | |
| 5809 | value += signed_addend; | |
| 5810 | break; | |
| 5811 | ||
| a6bb11b2 | 5812 | case BFD_RELOC_AARCH64_CALL26: |
| ce336788 | 5813 | case BFD_RELOC_AARCH64_JUMP26: |
| a06ea964 NC |
5814 | { |
| 5815 | asection *splt = globals->root.splt; | |
| 5816 | bfd_boolean via_plt_p = | |
| 5817 | splt != NULL && h != NULL && h->plt.offset != (bfd_vma) - 1; | |
| 5818 | ||
| 5819 | /* A call to an undefined weak symbol is converted to a jump to | |
| 5820 | the next instruction unless a PLT entry will be created. | |
| 5821 | The jump to the next instruction is optimized as a NOP. | |
| 5822 | Do the same for local undefined symbols. */ | |
| 5823 | if (weak_undef_p && ! via_plt_p) | |
| 5824 | { | |
| 5825 | bfd_putl32 (INSN_NOP, hit_data); | |
| 5826 | return bfd_reloc_ok; | |
| 5827 | } | |
| 5828 | ||
| 5829 | /* If the call goes through a PLT entry, make sure to | |
| 5830 | check distance to the right destination address. */ | |
| 5831 | if (via_plt_p) | |
| 07f9ddfe JW |
5832 | value = (splt->output_section->vma |
| 5833 | + splt->output_offset + h->plt.offset); | |
| 5834 | ||
| 5835 | /* Check if a stub has to be inserted because the destination | |
| 5836 | is too far away. */ | |
| 5837 | struct elf_aarch64_stub_hash_entry *stub_entry = NULL; | |
| 2f340668 JW |
5838 | |
| 5839 | /* If the branch destination is directed to plt stub, "value" will be | |
| 5840 | the final destination, otherwise we should plus signed_addend, it may | |
| 5841 | contain non-zero value, for example call to local function symbol | |
| 5842 | which are turned into "sec_sym + sec_off", and sec_off is kept in | |
| 5843 | signed_addend. */ | |
| 5844 | if (! aarch64_valid_branch_p (via_plt_p ? value : value + signed_addend, | |
| 5845 | place)) | |
| 07f9ddfe JW |
5846 | /* The target is out of reach, so redirect the branch to |
| 5847 | the local stub for this function. */ | |
| 5848 | stub_entry = elfNN_aarch64_get_stub_entry (input_section, sym_sec, h, | |
| 5849 | rel, globals); | |
| 5850 | if (stub_entry != NULL) | |
| 2f340668 JW |
5851 | { |
| 5852 | value = (stub_entry->stub_offset | |
| 5853 | + stub_entry->stub_sec->output_offset | |
| 5854 | + stub_entry->stub_sec->output_section->vma); | |
| 5855 | ||
| 5856 | /* We have redirected the destination to stub entry address, | |
| 5857 | so ignore any addend record in the original rela entry. */ | |
| 5858 | signed_addend = 0; | |
| 5859 | } | |
| a06ea964 | 5860 | } |
| 652afeef TC |
5861 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5862 | place, value, | |
| caed7120 | 5863 | signed_addend, weak_undef_p); |
| 07f9ddfe | 5864 | *unresolved_reloc_p = FALSE; |
| a06ea964 NC |
5865 | break; |
| 5866 | ||
| dcbd20eb JW |
5867 | case BFD_RELOC_AARCH64_16_PCREL: |
| 5868 | case BFD_RELOC_AARCH64_32_PCREL: | |
| 5869 | case BFD_RELOC_AARCH64_64_PCREL: | |
| ce336788 JW |
5870 | case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL: |
| 5871 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: | |
| 5872 | case BFD_RELOC_AARCH64_ADR_LO21_PCREL: | |
| 5873 | case BFD_RELOC_AARCH64_LD_LO19_PCREL: | |
| 1daf502a RL |
5874 | case BFD_RELOC_AARCH64_MOVW_PREL_G0: |
| 5875 | case BFD_RELOC_AARCH64_MOVW_PREL_G0_NC: | |
| 5876 | case BFD_RELOC_AARCH64_MOVW_PREL_G1: | |
| 5877 | case BFD_RELOC_AARCH64_MOVW_PREL_G1_NC: | |
| 5878 | case BFD_RELOC_AARCH64_MOVW_PREL_G2: | |
| 5879 | case BFD_RELOC_AARCH64_MOVW_PREL_G2_NC: | |
| 5880 | case BFD_RELOC_AARCH64_MOVW_PREL_G3: | |
| 0e1862bb | 5881 | if (bfd_link_pic (info) |
| dcbd20eb JW |
5882 | && (input_section->flags & SEC_ALLOC) != 0 |
| 5883 | && (input_section->flags & SEC_READONLY) != 0 | |
| d68f1976 | 5884 | && !SYMBOL_REFERENCES_LOCAL (info, h)) |
| dcbd20eb JW |
5885 | { |
| 5886 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 5887 | ||
| 4eca0228 | 5888 | _bfd_error_handler |
| 695344c0 | 5889 | /* xgettext:c-format */ |
| 871b3ab2 | 5890 | (_("%pB: relocation %s against symbol `%s' which may bind " |
| d68f1976 JW |
5891 | "externally can not be used when making a shared object; " |
| 5892 | "recompile with -fPIC"), | |
| dcbd20eb JW |
5893 | input_bfd, elfNN_aarch64_howto_table[howto_index].name, |
| 5894 | h->root.root.string); | |
| 5895 | bfd_set_error (bfd_error_bad_value); | |
| 1d75a8e2 | 5896 | return bfd_reloc_notsupported; |
| dcbd20eb | 5897 | } |
| 1a0670f3 | 5898 | /* Fall through. */ |
| dcbd20eb | 5899 | |
| a6bb11b2 | 5900 | case BFD_RELOC_AARCH64_16: |
| 92d77487 RL |
5901 | #if ARCH_SIZE == 64 |
| 5902 | case BFD_RELOC_AARCH64_32: | |
| 5903 | #endif | |
| a6bb11b2 | 5904 | case BFD_RELOC_AARCH64_ADD_LO12: |
| a6bb11b2 | 5905 | case BFD_RELOC_AARCH64_BRANCH19: |
| ce336788 | 5906 | case BFD_RELOC_AARCH64_LDST128_LO12: |
| a6bb11b2 YZ |
5907 | case BFD_RELOC_AARCH64_LDST16_LO12: |
| 5908 | case BFD_RELOC_AARCH64_LDST32_LO12: | |
| 5909 | case BFD_RELOC_AARCH64_LDST64_LO12: | |
| ce336788 | 5910 | case BFD_RELOC_AARCH64_LDST8_LO12: |
| a6bb11b2 YZ |
5911 | case BFD_RELOC_AARCH64_MOVW_G0: |
| 5912 | case BFD_RELOC_AARCH64_MOVW_G0_NC: | |
| ce336788 | 5913 | case BFD_RELOC_AARCH64_MOVW_G0_S: |
| a6bb11b2 YZ |
5914 | case BFD_RELOC_AARCH64_MOVW_G1: |
| 5915 | case BFD_RELOC_AARCH64_MOVW_G1_NC: | |
| ce336788 | 5916 | case BFD_RELOC_AARCH64_MOVW_G1_S: |
| a6bb11b2 YZ |
5917 | case BFD_RELOC_AARCH64_MOVW_G2: |
| 5918 | case BFD_RELOC_AARCH64_MOVW_G2_NC: | |
| ce336788 | 5919 | case BFD_RELOC_AARCH64_MOVW_G2_S: |
| a6bb11b2 | 5920 | case BFD_RELOC_AARCH64_MOVW_G3: |
| a6bb11b2 | 5921 | case BFD_RELOC_AARCH64_TSTBR14: |
| 652afeef TC |
5922 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5923 | place, value, | |
| caed7120 | 5924 | signed_addend, weak_undef_p); |
| a06ea964 NC |
5925 | break; |
| 5926 | ||
| a6bb11b2 YZ |
5927 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 5928 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: | |
| 7018c030 | 5929 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| ce336788 | 5930 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| 99ad26cb | 5931 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| ce336788 | 5932 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| 2aff25ba JW |
5933 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 5934 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: | |
| 5935 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: | |
| a06ea964 NC |
5936 | if (globals->root.sgot == NULL) |
| 5937 | BFD_ASSERT (h != NULL); | |
| 5938 | ||
| ff07562f | 5939 | relative_reloc = FALSE; |
| a06ea964 NC |
5940 | if (h != NULL) |
| 5941 | { | |
| 99ad26cb | 5942 | bfd_vma addend = 0; |
| ff07562f JW |
5943 | |
| 5944 | /* If a symbol is not dynamic and is not undefined weak, bind it | |
| 5945 | locally and generate a RELATIVE relocation under PIC mode. | |
| 5946 | ||
| 5947 | NOTE: one symbol may be referenced by several relocations, we | |
| 5948 | should only generate one RELATIVE relocation for that symbol. | |
| 5949 | Therefore, check GOT offset mark first. */ | |
| 5950 | if (h->dynindx == -1 | |
| 5951 | && !h->forced_local | |
| 5952 | && h->root.type != bfd_link_hash_undefweak | |
| 5953 | && bfd_link_pic (info) | |
| 5954 | && !symbol_got_offset_mark_p (input_bfd, h, r_symndx)) | |
| 5955 | relative_reloc = TRUE; | |
| 5956 | ||
| a06ea964 NC |
5957 | value = aarch64_calculate_got_entry_vma (h, globals, info, value, |
| 5958 | output_bfd, | |
| 5959 | unresolved_reloc_p); | |
| ff07562f JW |
5960 | /* Record the GOT entry address which will be used when generating |
| 5961 | RELATIVE relocation. */ | |
| 5962 | if (relative_reloc) | |
| 5963 | got_entry_addr = value; | |
| 5964 | ||
| 2aff25ba | 5965 | if (aarch64_relocation_aginst_gp_p (bfd_r_type)) |
| 99ad26cb JW |
5966 | addend = (globals->root.sgot->output_section->vma |
| 5967 | + globals->root.sgot->output_offset); | |
| 652afeef TC |
5968 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5969 | place, value, | |
| 99ad26cb | 5970 | addend, weak_undef_p); |
| a06ea964 | 5971 | } |
| b53b1bed JW |
5972 | else |
| 5973 | { | |
| 99ad26cb | 5974 | bfd_vma addend = 0; |
| b53b1bed JW |
5975 | struct elf_aarch64_local_symbol *locals |
| 5976 | = elf_aarch64_locals (input_bfd); | |
| 5977 | ||
| 5978 | if (locals == NULL) | |
| 5979 | { | |
| 5980 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 4eca0228 | 5981 | _bfd_error_handler |
| 695344c0 | 5982 | /* xgettext:c-format */ |
| 90b6238f | 5983 | (_("%pB: local symbol descriptor table be NULL when applying " |
| b53b1bed JW |
5984 | "relocation %s against local symbol"), |
| 5985 | input_bfd, elfNN_aarch64_howto_table[howto_index].name); | |
| 5986 | abort (); | |
| 5987 | } | |
| 5988 | ||
| 5989 | off = symbol_got_offset (input_bfd, h, r_symndx); | |
| 5990 | base_got = globals->root.sgot; | |
| ff07562f JW |
5991 | got_entry_addr = (base_got->output_section->vma |
| 5992 | + base_got->output_offset + off); | |
| b53b1bed JW |
5993 | |
| 5994 | if (!symbol_got_offset_mark_p (input_bfd, h, r_symndx)) | |
| 5995 | { | |
| 5996 | bfd_put_64 (output_bfd, value, base_got->contents + off); | |
| 5997 | ||
| ff07562f JW |
5998 | /* For local symbol, we have done absolute relocation in static |
| 5999 | linking stage. While for shared library, we need to update the | |
| 6000 | content of GOT entry according to the shared object's runtime | |
| 6001 | base address. So, we need to generate a R_AARCH64_RELATIVE reloc | |
| 6002 | for dynamic linker. */ | |
| 0e1862bb | 6003 | if (bfd_link_pic (info)) |
| ff07562f | 6004 | relative_reloc = TRUE; |
| b53b1bed JW |
6005 | |
| 6006 | symbol_got_offset_mark (input_bfd, h, r_symndx); | |
| 6007 | } | |
| 6008 | ||
| 6009 | /* Update the relocation value to GOT entry addr as we have transformed | |
| 6010 | the direct data access into indirect data access through GOT. */ | |
| 6011 | value = got_entry_addr; | |
| 99ad26cb | 6012 | |
| 2aff25ba | 6013 | if (aarch64_relocation_aginst_gp_p (bfd_r_type)) |
| 99ad26cb JW |
6014 | addend = base_got->output_section->vma + base_got->output_offset; |
| 6015 | ||
| 652afeef TC |
6016 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6017 | place, value, | |
| 99ad26cb | 6018 | addend, weak_undef_p); |
| b53b1bed | 6019 | } |
| ff07562f JW |
6020 | |
| 6021 | if (relative_reloc) | |
| 6022 | { | |
| 6023 | asection *s; | |
| 6024 | Elf_Internal_Rela outrel; | |
| 6025 | ||
| 6026 | s = globals->root.srelgot; | |
| 6027 | if (s == NULL) | |
| 6028 | abort (); | |
| 6029 | ||
| 6030 | outrel.r_offset = got_entry_addr; | |
| 6031 | outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE)); | |
| 6032 | outrel.r_addend = orig_value; | |
| 6033 | elf_append_rela (output_bfd, s, &outrel); | |
| 6034 | } | |
| a2e1db00 RL |
6035 | break; |
| 6036 | ||
| ce336788 | 6037 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a6bb11b2 | 6038 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 6039 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| a6bb11b2 | 6040 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a6bb11b2 | 6041 | case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: |
| ce336788 | 6042 | case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: |
| 043bf05a | 6043 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 73f925cc | 6044 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 6045 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 6046 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
6047 | if (globals->root.sgot == NULL) |
| 6048 | return bfd_reloc_notsupported; | |
| 6049 | ||
| 6050 | value = (symbol_got_offset (input_bfd, h, r_symndx) | |
| 6051 | + globals->root.sgot->output_section->vma | |
| f44a1f8e | 6052 | + globals->root.sgot->output_offset); |
| a06ea964 | 6053 | |
| 652afeef TC |
6054 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6055 | place, value, | |
| caed7120 | 6056 | 0, weak_undef_p); |
| a06ea964 NC |
6057 | *unresolved_reloc_p = FALSE; |
| 6058 | break; | |
| 6059 | ||
| 7ba7cfe4 | 6060 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 6061 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| 3b957e5b RL |
6062 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 6063 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| 94facae3 RL |
6064 | if (globals->root.sgot == NULL) |
| 6065 | return bfd_reloc_notsupported; | |
| 6066 | ||
| 6067 | value = symbol_got_offset (input_bfd, h, r_symndx); | |
| 652afeef TC |
6068 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6069 | place, value, | |
| 94facae3 RL |
6070 | 0, weak_undef_p); |
| 6071 | *unresolved_reloc_p = FALSE; | |
| 6072 | break; | |
| 6073 | ||
| 6ffe9a1b | 6074 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12: |
| 40fbed84 | 6075 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12: |
| 753999c1 | 6076 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC: |
| 07c9aa07 JW |
6077 | case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12: |
| 6078 | case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC: | |
| 6079 | case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12: | |
| 6080 | case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC: | |
| 6081 | case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12: | |
| 6082 | case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC: | |
| 6083 | case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12: | |
| 6084 | case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC: | |
| 6ffe9a1b JW |
6085 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0: |
| 6086 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: | |
| 6087 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1: | |
| 6088 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC: | |
| 6089 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2: | |
| 652afeef TC |
6090 | { |
| 6091 | if (!(weak_undef_p || elf_hash_table (info)->tls_sec)) | |
| 6092 | { | |
| 6093 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 6094 | _bfd_error_handler | |
| 6095 | /* xgettext:c-format */ | |
| 6096 | (_("%pB: TLS relocation %s against undefined symbol `%s'"), | |
| 6097 | input_bfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 6098 | h->root.root.string); | |
| 6099 | bfd_set_error (bfd_error_bad_value); | |
| 6100 | return bfd_reloc_notsupported; | |
| 6101 | } | |
| 6102 | ||
| 6103 | bfd_vma def_value | |
| 6104 | = weak_undef_p ? 0 : signed_addend - dtpoff_base (info); | |
| 6105 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, | |
| 6106 | place, value, | |
| 6107 | def_value, weak_undef_p); | |
| 6108 | break; | |
| 6109 | } | |
| 40fbed84 | 6110 | |
| a6bb11b2 YZ |
6111 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12: |
| 6112 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12: | |
| 6113 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC: | |
| e04ef022 RL |
6114 | case BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12: |
| 6115 | case BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12_NC: | |
| 6116 | case BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12: | |
| 6117 | case BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12_NC: | |
| 6118 | case BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12: | |
| 6119 | case BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12_NC: | |
| 6120 | case BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12: | |
| 6121 | case BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12_NC: | |
| a6bb11b2 YZ |
6122 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0: |
| 6123 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC: | |
| 6124 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1: | |
| 6125 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC: | |
| 6126 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2: | |
| 652afeef TC |
6127 | { |
| 6128 | if (!(weak_undef_p || elf_hash_table (info)->tls_sec)) | |
| 6129 | { | |
| 6130 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 6131 | _bfd_error_handler | |
| 6132 | /* xgettext:c-format */ | |
| 6133 | (_("%pB: TLS relocation %s against undefined symbol `%s'"), | |
| 6134 | input_bfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 6135 | h->root.root.string); | |
| 6136 | bfd_set_error (bfd_error_bad_value); | |
| 6137 | return bfd_reloc_notsupported; | |
| 6138 | } | |
| 6139 | ||
| 6140 | bfd_vma def_value | |
| 6141 | = weak_undef_p ? 0 : signed_addend - tpoff_base (info); | |
| 6142 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, | |
| 6143 | place, value, | |
| 6144 | def_value, weak_undef_p); | |
| 6145 | *unresolved_reloc_p = FALSE; | |
| 6146 | break; | |
| 6147 | } | |
| a06ea964 | 6148 | |
| f955cccf | 6149 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 6150 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 6151 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| a6bb11b2 | 6152 | case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC: |
| f955cccf | 6153 | case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12: |
| 1ada945d | 6154 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| a06ea964 NC |
6155 | if (globals->root.sgot == NULL) |
| 6156 | return bfd_reloc_notsupported; | |
| a06ea964 NC |
6157 | value = (symbol_tlsdesc_got_offset (input_bfd, h, r_symndx) |
| 6158 | + globals->root.sgotplt->output_section->vma | |
| f44a1f8e | 6159 | + globals->root.sgotplt->output_offset |
| a06ea964 NC |
6160 | + globals->sgotplt_jump_table_size); |
| 6161 | ||
| 652afeef TC |
6162 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6163 | place, value, | |
| caed7120 | 6164 | 0, weak_undef_p); |
| a06ea964 NC |
6165 | *unresolved_reloc_p = FALSE; |
| 6166 | break; | |
| 6167 | ||
| 0484b454 RL |
6168 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
| 6169 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| 6170 | if (globals->root.sgot == NULL) | |
| 6171 | return bfd_reloc_notsupported; | |
| 6172 | ||
| 6173 | value = (symbol_tlsdesc_got_offset (input_bfd, h, r_symndx) | |
| 6174 | + globals->root.sgotplt->output_section->vma | |
| 6175 | + globals->root.sgotplt->output_offset | |
| 6176 | + globals->sgotplt_jump_table_size); | |
| 6177 | ||
| 6178 | value -= (globals->root.sgot->output_section->vma | |
| 6179 | + globals->root.sgot->output_offset); | |
| 6180 | ||
| 652afeef TC |
6181 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6182 | place, value, | |
| 0484b454 RL |
6183 | 0, weak_undef_p); |
| 6184 | *unresolved_reloc_p = FALSE; | |
| 6185 | break; | |
| 6186 | ||
| a06ea964 NC |
6187 | default: |
| 6188 | return bfd_reloc_notsupported; | |
| 6189 | } | |
| 6190 | ||
| 6191 | if (saved_addend) | |
| 6192 | *saved_addend = value; | |
| 6193 | ||
| 6194 | /* Only apply the final relocation in a sequence. */ | |
| 6195 | if (save_addend) | |
| 6196 | return bfd_reloc_continue; | |
| 6197 | ||
| caed7120 YZ |
6198 | return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type, |
| 6199 | howto, value); | |
| a06ea964 NC |
6200 | } |
| 6201 | ||
| 2d0ca824 YN |
6202 | /* LP64 and ILP32 operates on x- and w-registers respectively. |
| 6203 | Next definitions take into account the difference between | |
| 6204 | corresponding machine codes. R means x-register if the target | |
| 6205 | arch is LP64, and w-register if the target is ILP32. */ | |
| 6206 | ||
| 6207 | #if ARCH_SIZE == 64 | |
| 6208 | # define add_R0_R0 (0x91000000) | |
| 6209 | # define add_R0_R0_R1 (0x8b000020) | |
| 6210 | # define add_R0_R1 (0x91400020) | |
| 6211 | # define ldr_R0 (0x58000000) | |
| 6212 | # define ldr_R0_mask(i) (i & 0xffffffe0) | |
| 6213 | # define ldr_R0_x0 (0xf9400000) | |
| 6214 | # define ldr_hw_R0 (0xf2a00000) | |
| 6215 | # define movk_R0 (0xf2800000) | |
| 6216 | # define movz_R0 (0xd2a00000) | |
| 6217 | # define movz_hw_R0 (0xd2c00000) | |
| 6218 | #else /*ARCH_SIZE == 32 */ | |
| 6219 | # define add_R0_R0 (0x11000000) | |
| 6220 | # define add_R0_R0_R1 (0x0b000020) | |
| 6221 | # define add_R0_R1 (0x11400020) | |
| 6222 | # define ldr_R0 (0x18000000) | |
| 6223 | # define ldr_R0_mask(i) (i & 0xbfffffe0) | |
| 6224 | # define ldr_R0_x0 (0xb9400000) | |
| 6225 | # define ldr_hw_R0 (0x72a00000) | |
| 6226 | # define movk_R0 (0x72800000) | |
| 6227 | # define movz_R0 (0x52a00000) | |
| 6228 | # define movz_hw_R0 (0x52c00000) | |
| 6229 | #endif | |
| 6230 | ||
| 9fca35fc TC |
6231 | /* Structure to hold payload for _bfd_aarch64_erratum_843419_clear_stub, |
| 6232 | it is used to identify the stub information to reset. */ | |
| 6233 | ||
| 6234 | struct erratum_843419_branch_to_stub_clear_data | |
| 6235 | { | |
| 6236 | bfd_vma adrp_offset; | |
| 6237 | asection *output_section; | |
| 6238 | }; | |
| 6239 | ||
| 6240 | /* Clear the erratum information for GEN_ENTRY if the ADRP_OFFSET and | |
| 6241 | section inside IN_ARG matches. The clearing is done by setting the | |
| 6242 | stub_type to none. */ | |
| 6243 | ||
| 6244 | static bfd_boolean | |
| 6245 | _bfd_aarch64_erratum_843419_clear_stub (struct bfd_hash_entry *gen_entry, | |
| 6246 | void *in_arg) | |
| 6247 | { | |
| 6248 | struct elf_aarch64_stub_hash_entry *stub_entry | |
| 6249 | = (struct elf_aarch64_stub_hash_entry *) gen_entry; | |
| 6250 | struct erratum_843419_branch_to_stub_clear_data *data | |
| 6251 | = (struct erratum_843419_branch_to_stub_clear_data *) in_arg; | |
| 6252 | ||
| 6253 | if (stub_entry->target_section != data->output_section | |
| 6254 | || stub_entry->stub_type != aarch64_stub_erratum_843419_veneer | |
| 6255 | || stub_entry->adrp_offset != data->adrp_offset) | |
| 6256 | return TRUE; | |
| 6257 | ||
| 6258 | /* Change the stub type instead of removing the entry, removing from the hash | |
| 6259 | table would be slower and we have already reserved the memory for the entry | |
| 6260 | so there wouldn't be much gain. Changing the stub also keeps around a | |
| 6261 | record of what was there before. */ | |
| 6262 | stub_entry->stub_type = aarch64_stub_none; | |
| 6263 | ||
| 6264 | /* We're done and there could have been only one matching stub at that | |
| 6265 | particular offset, so abort further traversal. */ | |
| 6266 | return FALSE; | |
| 6267 | } | |
| 6268 | ||
| 6269 | /* TLS Relaxations may relax an adrp sequence that matches the erratum 843419 | |
| 6270 | sequence. In this case the erratum no longer applies and we need to remove | |
| 6271 | the entry from the pending stub generation. This clears matching adrp insn | |
| 6272 | at ADRP_OFFSET in INPUT_SECTION in the stub table defined in GLOBALS. */ | |
| 6273 | ||
| 6274 | static void | |
| 6275 | clear_erratum_843419_entry (struct elf_aarch64_link_hash_table *globals, | |
| 6276 | bfd_vma adrp_offset, asection *input_section) | |
| 6277 | { | |
| 739b5c9c | 6278 | if (globals->fix_erratum_843419 & ERRAT_ADRP) |
| 9fca35fc TC |
6279 | { |
| 6280 | struct erratum_843419_branch_to_stub_clear_data data; | |
| 6281 | data.adrp_offset = adrp_offset; | |
| 6282 | data.output_section = input_section; | |
| 6283 | ||
| 6284 | bfd_hash_traverse (&globals->stub_hash_table, | |
| 6285 | _bfd_aarch64_erratum_843419_clear_stub, &data); | |
| 6286 | } | |
| 6287 | } | |
| 6288 | ||
| a06ea964 NC |
6289 | /* Handle TLS relaxations. Relaxing is possible for symbols that use |
| 6290 | R_AARCH64_TLSDESC_ADR_{PAGE, LD64_LO12_NC, ADD_LO12_NC} during a static | |
| 6291 | link. | |
| 6292 | ||
| 6293 | Return bfd_reloc_ok if we're done, bfd_reloc_continue if the caller | |
| 6294 | is to then call final_link_relocate. Return other values in the | |
| 6295 | case of error. */ | |
| 6296 | ||
| 6297 | static bfd_reloc_status_type | |
| cec5225b | 6298 | elfNN_aarch64_tls_relax (struct elf_aarch64_link_hash_table *globals, |
| 9fca35fc TC |
6299 | bfd *input_bfd, asection *input_section, |
| 6300 | bfd_byte *contents, Elf_Internal_Rela *rel, | |
| 6301 | struct elf_link_hash_entry *h) | |
| a06ea964 NC |
6302 | { |
| 6303 | bfd_boolean is_local = h == NULL; | |
| cec5225b | 6304 | unsigned int r_type = ELFNN_R_TYPE (rel->r_info); |
| a06ea964 NC |
6305 | unsigned long insn; |
| 6306 | ||
| 6307 | BFD_ASSERT (globals && input_bfd && contents && rel); | |
| 6308 | ||
| 0aa13fee | 6309 | switch (elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type)) |
| a06ea964 | 6310 | { |
| a6bb11b2 | 6311 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| ce336788 | 6312 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| a06ea964 NC |
6313 | if (is_local) |
| 6314 | { | |
| 6315 | /* GD->LE relaxation: | |
| 2d0ca824 | 6316 | adrp x0, :tlsgd:var => movz R0, :tprel_g1:var |
| a06ea964 | 6317 | or |
| 2d0ca824 YN |
6318 | adrp x0, :tlsdesc:var => movz R0, :tprel_g1:var |
| 6319 | ||
| 6320 | Where R is x for LP64, and w for ILP32. */ | |
| 6321 | bfd_putl32 (movz_R0, contents + rel->r_offset); | |
| 9fca35fc TC |
6322 | /* We have relaxed the adrp into a mov, we may have to clear any |
| 6323 | pending erratum fixes. */ | |
| 6324 | clear_erratum_843419_entry (globals, rel->r_offset, input_section); | |
| a06ea964 NC |
6325 | return bfd_reloc_continue; |
| 6326 | } | |
| 6327 | else | |
| 6328 | { | |
| 6329 | /* GD->IE relaxation: | |
| 6330 | adrp x0, :tlsgd:var => adrp x0, :gottprel:var | |
| 6331 | or | |
| 6332 | adrp x0, :tlsdesc:var => adrp x0, :gottprel:var | |
| 6333 | */ | |
| a06ea964 NC |
6334 | return bfd_reloc_continue; |
| 6335 | } | |
| 6336 | ||
| 389b8029 MS |
6337 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| 6338 | BFD_ASSERT (0); | |
| 6339 | break; | |
| 6340 | ||
| 1ada945d MS |
6341 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 6342 | if (is_local) | |
| 6343 | { | |
| 6344 | /* Tiny TLSDESC->LE relaxation: | |
| 07d6d2b8 AM |
6345 | ldr x1, :tlsdesc:var => movz R0, #:tprel_g1:var |
| 6346 | adr x0, :tlsdesc:var => movk R0, #:tprel_g0_nc:var | |
| 1ada945d | 6347 | .tlsdesccall var |
| 07d6d2b8 | 6348 | blr x1 => nop |
| 2d0ca824 YN |
6349 | |
| 6350 | Where R is x for LP64, and w for ILP32. */ | |
| 1ada945d MS |
6351 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21)); |
| 6352 | BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (TLSDESC_CALL)); | |
| 6353 | ||
| 6354 | rel[1].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6355 | AARCH64_R (TLSLE_MOVW_TPREL_G0_NC)); | |
| 6356 | rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6357 | ||
| 2d0ca824 YN |
6358 | bfd_putl32 (movz_R0, contents + rel->r_offset); |
| 6359 | bfd_putl32 (movk_R0, contents + rel->r_offset + 4); | |
| 1ada945d MS |
6360 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 8); |
| 6361 | return bfd_reloc_continue; | |
| 6362 | } | |
| 6363 | else | |
| 6364 | { | |
| 6365 | /* Tiny TLSDESC->IE relaxation: | |
| 07d6d2b8 AM |
6366 | ldr x1, :tlsdesc:var => ldr x0, :gottprel:var |
| 6367 | adr x0, :tlsdesc:var => nop | |
| 1ada945d | 6368 | .tlsdesccall var |
| 07d6d2b8 | 6369 | blr x1 => nop |
| 1ada945d MS |
6370 | */ |
| 6371 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21)); | |
| 6372 | BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (TLSDESC_CALL)); | |
| 6373 | ||
| 6374 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6375 | rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6376 | ||
| 2d0ca824 | 6377 | bfd_putl32 (ldr_R0, contents + rel->r_offset); |
| 1ada945d MS |
6378 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 4); |
| 6379 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 8); | |
| 6380 | return bfd_reloc_continue; | |
| 6381 | } | |
| 6382 | ||
| 3c12b054 MS |
6383 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 6384 | if (is_local) | |
| 6385 | { | |
| 6386 | /* Tiny GD->LE relaxation: | |
| 07d6d2b8 AM |
6387 | adr x0, :tlsgd:var => mrs x1, tpidr_el0 |
| 6388 | bl __tls_get_addr => add R0, R1, #:tprel_hi12:x, lsl #12 | |
| 6389 | nop => add R0, R0, #:tprel_lo12_nc:x | |
| 2d0ca824 YN |
6390 | |
| 6391 | Where R is x for LP64, and x for Ilp32. */ | |
| 3c12b054 MS |
6392 | |
| 6393 | /* First kill the tls_get_addr reloc on the bl instruction. */ | |
| 6394 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6395 | ||
| 6396 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 0); | |
| 2d0ca824 YN |
6397 | bfd_putl32 (add_R0_R1, contents + rel->r_offset + 4); |
| 6398 | bfd_putl32 (add_R0_R0, contents + rel->r_offset + 8); | |
| 3c12b054 MS |
6399 | |
| 6400 | rel[1].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6401 | AARCH64_R (TLSLE_ADD_TPREL_LO12_NC)); | |
| 6402 | rel[1].r_offset = rel->r_offset + 8; | |
| 6403 | ||
| 6404 | /* Move the current relocation to the second instruction in | |
| 6405 | the sequence. */ | |
| 6406 | rel->r_offset += 4; | |
| 6407 | rel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6408 | AARCH64_R (TLSLE_ADD_TPREL_HI12)); | |
| 6409 | return bfd_reloc_continue; | |
| 6410 | } | |
| 6411 | else | |
| 6412 | { | |
| 6413 | /* Tiny GD->IE relaxation: | |
| 07d6d2b8 AM |
6414 | adr x0, :tlsgd:var => ldr R0, :gottprel:var |
| 6415 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6416 | nop => add R0, R0, R1 | |
| 2d0ca824 YN |
6417 | |
| 6418 | Where R is x for LP64, and w for Ilp32. */ | |
| 3c12b054 MS |
6419 | |
| 6420 | /* First kill the tls_get_addr reloc on the bl instruction. */ | |
| 6421 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6422 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6423 | ||
| 2d0ca824 | 6424 | bfd_putl32 (ldr_R0, contents + rel->r_offset); |
| 3c12b054 | 6425 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 4); |
| 2d0ca824 | 6426 | bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 8); |
| 3c12b054 MS |
6427 | return bfd_reloc_continue; |
| 6428 | } | |
| 6429 | ||
| ac734732 RL |
6430 | #if ARCH_SIZE == 64 |
| 6431 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: | |
| 6432 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSGD_MOVW_G0_NC)); | |
| 6433 | BFD_ASSERT (rel->r_offset + 12 == rel[2].r_offset); | |
| 6434 | BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (CALL26)); | |
| 6435 | ||
| 6436 | if (is_local) | |
| 6437 | { | |
| 6438 | /* Large GD->LE relaxation: | |
| 07d6d2b8 | 6439 | movz x0, #:tlsgd_g1:var => movz x0, #:tprel_g2:var, lsl #32 |
| ac734732 | 6440 | movk x0, #:tlsgd_g0_nc:var => movk x0, #:tprel_g1_nc:var, lsl #16 |
| 07d6d2b8 AM |
6441 | add x0, gp, x0 => movk x0, #:tprel_g0_nc:var |
| 6442 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6443 | nop => add x0, x0, x1 | |
| ac734732 RL |
6444 | */ |
| 6445 | rel[2].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6446 | AARCH64_R (TLSLE_MOVW_TPREL_G0_NC)); | |
| 6447 | rel[2].r_offset = rel->r_offset + 8; | |
| 6448 | ||
| 2d0ca824 YN |
6449 | bfd_putl32 (movz_hw_R0, contents + rel->r_offset + 0); |
| 6450 | bfd_putl32 (ldr_hw_R0, contents + rel->r_offset + 4); | |
| 6451 | bfd_putl32 (movk_R0, contents + rel->r_offset + 8); | |
| ac734732 | 6452 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 12); |
| 2d0ca824 | 6453 | bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 16); |
| ac734732 RL |
6454 | } |
| 6455 | else | |
| 6456 | { | |
| 6457 | /* Large GD->IE relaxation: | |
| 07d6d2b8 | 6458 | movz x0, #:tlsgd_g1:var => movz x0, #:gottprel_g1:var, lsl #16 |
| ac734732 | 6459 | movk x0, #:tlsgd_g0_nc:var => movk x0, #:gottprel_g0_nc:var |
| 07d6d2b8 AM |
6460 | add x0, gp, x0 => ldr x0, [gp, x0] |
| 6461 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6462 | nop => add x0, x0, x1 | |
| ac734732 RL |
6463 | */ |
| 6464 | rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6465 | bfd_putl32 (0xd2a80000, contents + rel->r_offset + 0); | |
| 2d0ca824 | 6466 | bfd_putl32 (ldr_R0, contents + rel->r_offset + 8); |
| ac734732 | 6467 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 12); |
| 2d0ca824 | 6468 | bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 16); |
| ac734732 RL |
6469 | } |
| 6470 | return bfd_reloc_continue; | |
| 6471 | ||
| 6472 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: | |
| 6473 | return bfd_reloc_continue; | |
| 6474 | #endif | |
| 6475 | ||
| 043bf05a MS |
6476 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 6477 | return bfd_reloc_continue; | |
| 6478 | ||
| a6bb11b2 | 6479 | case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC: |
| a06ea964 NC |
6480 | if (is_local) |
| 6481 | { | |
| 6482 | /* GD->LE relaxation: | |
| 6483 | ldr xd, [x0, #:tlsdesc_lo12:var] => movk x0, :tprel_g0_nc:var | |
| 2d0ca824 YN |
6484 | |
| 6485 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 6486 | bfd_putl32 (movk_R0, contents + rel->r_offset); | |
| a06ea964 NC |
6487 | return bfd_reloc_continue; |
| 6488 | } | |
| 6489 | else | |
| 6490 | { | |
| 6491 | /* GD->IE relaxation: | |
| 2d0ca824 YN |
6492 | ldr xd, [x0, #:tlsdesc_lo12:var] => ldr R0, [x0, #:gottprel_lo12:var] |
| 6493 | ||
| 6494 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| a06ea964 | 6495 | insn = bfd_getl32 (contents + rel->r_offset); |
| 2d0ca824 | 6496 | bfd_putl32 (ldr_R0_mask (insn), contents + rel->r_offset); |
| a06ea964 NC |
6497 | return bfd_reloc_continue; |
| 6498 | } | |
| 6499 | ||
| a6bb11b2 | 6500 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a06ea964 NC |
6501 | if (is_local) |
| 6502 | { | |
| 6503 | /* GD->LE relaxation | |
| 07d6d2b8 AM |
6504 | add x0, #:tlsgd_lo12:var => movk R0, :tprel_g0_nc:var |
| 6505 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6506 | nop => add R0, R1, R0 | |
| 2d0ca824 YN |
6507 | |
| 6508 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| a06ea964 NC |
6509 | |
| 6510 | /* First kill the tls_get_addr reloc on the bl instruction. */ | |
| 6511 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| cec5225b | 6512 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); |
| a06ea964 | 6513 | |
| 2d0ca824 | 6514 | bfd_putl32 (movk_R0, contents + rel->r_offset); |
| a06ea964 | 6515 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 4); |
| 2d0ca824 | 6516 | bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 8); |
| a06ea964 NC |
6517 | return bfd_reloc_continue; |
| 6518 | } | |
| 6519 | else | |
| 6520 | { | |
| 6521 | /* GD->IE relaxation | |
| 07d6d2b8 AM |
6522 | ADD x0, #:tlsgd_lo12:var => ldr R0, [x0, #:gottprel_lo12:var] |
| 6523 | BL __tls_get_addr => mrs x1, tpidr_el0 | |
| a06ea964 | 6524 | R_AARCH64_CALL26 |
| 07d6d2b8 | 6525 | NOP => add R0, R1, R0 |
| 5cd1d8bc YN |
6526 | |
| 6527 | Where R is x for lp64 mode, and w for ilp32 mode. */ | |
| a06ea964 | 6528 | |
| a6bb11b2 | 6529 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26)); |
| a06ea964 NC |
6530 | |
| 6531 | /* Remove the relocation on the BL instruction. */ | |
| cec5225b | 6532 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); |
| a06ea964 | 6533 | |
| a06ea964 NC |
6534 | /* We choose to fixup the BL and NOP instructions using the |
| 6535 | offset from the second relocation to allow flexibility in | |
| 6536 | scheduling instructions between the ADD and BL. */ | |
| 2d0ca824 | 6537 | bfd_putl32 (ldr_R0_x0, contents + rel->r_offset); |
| 5cd1d8bc | 6538 | bfd_putl32 (0xd53bd041, contents + rel[1].r_offset); |
| 2d0ca824 | 6539 | bfd_putl32 (add_R0_R0_R1, contents + rel[1].r_offset + 4); |
| a06ea964 NC |
6540 | return bfd_reloc_continue; |
| 6541 | } | |
| 6542 | ||
| 0484b454 | 6543 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| f955cccf | 6544 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 6545 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| a06ea964 | 6546 | /* GD->IE/LE relaxation: |
| 07d6d2b8 AM |
6547 | add x0, x0, #:tlsdesc_lo12:var => nop |
| 6548 | blr xd => nop | |
| a06ea964 NC |
6549 | */ |
| 6550 | bfd_putl32 (INSN_NOP, contents + rel->r_offset); | |
| 6551 | return bfd_reloc_ok; | |
| 6552 | ||
| 0484b454 RL |
6553 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| 6554 | if (is_local) | |
| 6555 | { | |
| 6556 | /* GD->LE relaxation: | |
| 2d0ca824 YN |
6557 | ldr xd, [gp, xn] => movk R0, #:tprel_g0_nc:var |
| 6558 | ||
| 6559 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 6560 | bfd_putl32 (movk_R0, contents + rel->r_offset); | |
| 0484b454 RL |
6561 | return bfd_reloc_continue; |
| 6562 | } | |
| 6563 | else | |
| 6564 | { | |
| 6565 | /* GD->IE relaxation: | |
| 2d0ca824 YN |
6566 | ldr xd, [gp, xn] => ldr R0, [gp, xn] |
| 6567 | ||
| 6568 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 0484b454 | 6569 | insn = bfd_getl32 (contents + rel->r_offset); |
| 2d0ca824 | 6570 | bfd_putl32 (ldr_R0_mask (insn), contents + rel->r_offset); |
| 0484b454 RL |
6571 | return bfd_reloc_ok; |
| 6572 | } | |
| 6573 | ||
| 6574 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: | |
| 6575 | /* GD->LE relaxation: | |
| 2d0ca824 | 6576 | movk xd, #:tlsdesc_off_g0_nc:var => movk R0, #:tprel_g1_nc:var, lsl #16 |
| 0484b454 | 6577 | GD->IE relaxation: |
| 2d0ca824 YN |
6578 | movk xd, #:tlsdesc_off_g0_nc:var => movk Rd, #:gottprel_g0_nc:var |
| 6579 | ||
| 6580 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 0484b454 | 6581 | if (is_local) |
| 2d0ca824 | 6582 | bfd_putl32 (ldr_hw_R0, contents + rel->r_offset); |
| 0484b454 RL |
6583 | return bfd_reloc_continue; |
| 6584 | ||
| 6585 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| 6586 | if (is_local) | |
| 6587 | { | |
| 6588 | /* GD->LE relaxation: | |
| 2d0ca824 YN |
6589 | movz xd, #:tlsdesc_off_g1:var => movz R0, #:tprel_g2:var, lsl #32 |
| 6590 | ||
| 6591 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 6592 | bfd_putl32 (movz_hw_R0, contents + rel->r_offset); | |
| 0484b454 RL |
6593 | return bfd_reloc_continue; |
| 6594 | } | |
| 6595 | else | |
| 6596 | { | |
| 6597 | /* GD->IE relaxation: | |
| 2d0ca824 YN |
6598 | movz xd, #:tlsdesc_off_g1:var => movz Rd, #:gottprel_g1:var, lsl #16 |
| 6599 | ||
| 6600 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 0484b454 | 6601 | insn = bfd_getl32 (contents + rel->r_offset); |
| 2d0ca824 | 6602 | bfd_putl32 (movz_R0 | (insn & 0x1f), contents + rel->r_offset); |
| 0484b454 RL |
6603 | return bfd_reloc_continue; |
| 6604 | } | |
| 6605 | ||
| a6bb11b2 | 6606 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a06ea964 | 6607 | /* IE->LE relaxation: |
| 07d6d2b8 | 6608 | adrp xd, :gottprel:var => movz Rd, :tprel_g1:var |
| 2d0ca824 YN |
6609 | |
| 6610 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| a06ea964 NC |
6611 | if (is_local) |
| 6612 | { | |
| 6613 | insn = bfd_getl32 (contents + rel->r_offset); | |
| 2d0ca824 | 6614 | bfd_putl32 (movz_R0 | (insn & 0x1f), contents + rel->r_offset); |
| 9fca35fc TC |
6615 | /* We have relaxed the adrp into a mov, we may have to clear any |
| 6616 | pending erratum fixes. */ | |
| 6617 | clear_erratum_843419_entry (globals, rel->r_offset, input_section); | |
| a06ea964 NC |
6618 | } |
| 6619 | return bfd_reloc_continue; | |
| 6620 | ||
| a6bb11b2 | 6621 | case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC: |
| a06ea964 | 6622 | /* IE->LE relaxation: |
| 07d6d2b8 | 6623 | ldr xd, [xm, #:gottprel_lo12:var] => movk Rd, :tprel_g0_nc:var |
| 2d0ca824 YN |
6624 | |
| 6625 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| a06ea964 NC |
6626 | if (is_local) |
| 6627 | { | |
| 6628 | insn = bfd_getl32 (contents + rel->r_offset); | |
| 2d0ca824 | 6629 | bfd_putl32 (movk_R0 | (insn & 0x1f), contents + rel->r_offset); |
| a06ea964 NC |
6630 | } |
| 6631 | return bfd_reloc_continue; | |
| 6632 | ||
| 259364ad JW |
6633 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| 6634 | /* LD->LE relaxation (tiny): | |
| 6635 | adr x0, :tlsldm:x => mrs x0, tpidr_el0 | |
| c1fc2d7e YN |
6636 | bl __tls_get_addr => add R0, R0, TCB_SIZE |
| 6637 | ||
| 6638 | Where R is x for lp64 mode, and w for ilp32 mode. */ | |
| 259364ad JW |
6639 | if (is_local) |
| 6640 | { | |
| 6641 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6642 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26)); | |
| 6643 | /* No need of CALL26 relocation for tls_get_addr. */ | |
| 6644 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6645 | bfd_putl32 (0xd53bd040, contents + rel->r_offset + 0); | |
| 2d0ca824 YN |
6646 | bfd_putl32 (add_R0_R0 | (TCB_SIZE << 10), |
| 6647 | contents + rel->r_offset + 4); | |
| 259364ad JW |
6648 | return bfd_reloc_ok; |
| 6649 | } | |
| 6650 | return bfd_reloc_continue; | |
| 6651 | ||
| 6652 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: | |
| 6653 | /* LD->LE relaxation (small): | |
| 6654 | adrp x0, :tlsldm:x => mrs x0, tpidr_el0 | |
| 6655 | */ | |
| 6656 | if (is_local) | |
| 6657 | { | |
| 6658 | bfd_putl32 (0xd53bd040, contents + rel->r_offset); | |
| 6659 | return bfd_reloc_ok; | |
| 6660 | } | |
| 6661 | return bfd_reloc_continue; | |
| 6662 | ||
| 6663 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: | |
| 6664 | /* LD->LE relaxation (small): | |
| c1fc2d7e | 6665 | add x0, #:tlsldm_lo12:x => add R0, R0, TCB_SIZE |
| 259364ad | 6666 | bl __tls_get_addr => nop |
| c1fc2d7e YN |
6667 | |
| 6668 | Where R is x for lp64 mode, and w for ilp32 mode. */ | |
| 259364ad JW |
6669 | if (is_local) |
| 6670 | { | |
| 6671 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6672 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26)); | |
| 6673 | /* No need of CALL26 relocation for tls_get_addr. */ | |
| 6674 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 2d0ca824 YN |
6675 | bfd_putl32 (add_R0_R0 | (TCB_SIZE << 10), |
| 6676 | contents + rel->r_offset + 0); | |
| c1fc2d7e | 6677 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 4); |
| 259364ad JW |
6678 | return bfd_reloc_ok; |
| 6679 | } | |
| 6680 | return bfd_reloc_continue; | |
| 6681 | ||
| a06ea964 NC |
6682 | default: |
| 6683 | return bfd_reloc_continue; | |
| 6684 | } | |
| 6685 | ||
| 6686 | return bfd_reloc_ok; | |
| 6687 | } | |
| 6688 | ||
| 6689 | /* Relocate an AArch64 ELF section. */ | |
| 6690 | ||
| 6691 | static bfd_boolean | |
| cec5225b | 6692 | elfNN_aarch64_relocate_section (bfd *output_bfd, |
| a06ea964 NC |
6693 | struct bfd_link_info *info, |
| 6694 | bfd *input_bfd, | |
| 6695 | asection *input_section, | |
| 6696 | bfd_byte *contents, | |
| 6697 | Elf_Internal_Rela *relocs, | |
| 6698 | Elf_Internal_Sym *local_syms, | |
| 6699 | asection **local_sections) | |
| 6700 | { | |
| 6701 | Elf_Internal_Shdr *symtab_hdr; | |
| 6702 | struct elf_link_hash_entry **sym_hashes; | |
| 6703 | Elf_Internal_Rela *rel; | |
| 6704 | Elf_Internal_Rela *relend; | |
| 6705 | const char *name; | |
| cec5225b | 6706 | struct elf_aarch64_link_hash_table *globals; |
| a06ea964 NC |
6707 | bfd_boolean save_addend = FALSE; |
| 6708 | bfd_vma addend = 0; | |
| 6709 | ||
| cec5225b | 6710 | globals = elf_aarch64_hash_table (info); |
| a06ea964 NC |
6711 | |
| 6712 | symtab_hdr = &elf_symtab_hdr (input_bfd); | |
| 6713 | sym_hashes = elf_sym_hashes (input_bfd); | |
| 6714 | ||
| 6715 | rel = relocs; | |
| 6716 | relend = relocs + input_section->reloc_count; | |
| 6717 | for (; rel < relend; rel++) | |
| 6718 | { | |
| 6719 | unsigned int r_type; | |
| a6bb11b2 YZ |
6720 | bfd_reloc_code_real_type bfd_r_type; |
| 6721 | bfd_reloc_code_real_type relaxed_bfd_r_type; | |
| a06ea964 NC |
6722 | reloc_howto_type *howto; |
| 6723 | unsigned long r_symndx; | |
| 6724 | Elf_Internal_Sym *sym; | |
| 6725 | asection *sec; | |
| 6726 | struct elf_link_hash_entry *h; | |
| 6727 | bfd_vma relocation; | |
| 6728 | bfd_reloc_status_type r; | |
| 6729 | arelent bfd_reloc; | |
| 6730 | char sym_type; | |
| 6731 | bfd_boolean unresolved_reloc = FALSE; | |
| 6732 | char *error_message = NULL; | |
| 6733 | ||
| cec5225b YZ |
6734 | r_symndx = ELFNN_R_SYM (rel->r_info); |
| 6735 | r_type = ELFNN_R_TYPE (rel->r_info); | |
| a06ea964 | 6736 | |
| 0aa13fee AM |
6737 | bfd_reloc.howto = elfNN_aarch64_howto_from_type (input_bfd, r_type); |
| 6738 | howto = bfd_reloc.howto; | |
| a06ea964 | 6739 | |
| 7fcfd62d | 6740 | if (howto == NULL) |
| 47aeb64c NC |
6741 | return _bfd_unrecognized_reloc (input_bfd, input_section, r_type); |
| 6742 | ||
| a6bb11b2 | 6743 | bfd_r_type = elfNN_aarch64_bfd_reloc_from_howto (howto); |
| 7fcfd62d | 6744 | |
| a06ea964 NC |
6745 | h = NULL; |
| 6746 | sym = NULL; | |
| 6747 | sec = NULL; | |
| 6748 | ||
| 6749 | if (r_symndx < symtab_hdr->sh_info) | |
| 6750 | { | |
| 6751 | sym = local_syms + r_symndx; | |
| cec5225b | 6752 | sym_type = ELFNN_ST_TYPE (sym->st_info); |
| a06ea964 NC |
6753 | sec = local_sections[r_symndx]; |
| 6754 | ||
| 6755 | /* An object file might have a reference to a local | |
| 6756 | undefined symbol. This is a daft object file, but we | |
| 6757 | should at least do something about it. */ | |
| 6758 | if (r_type != R_AARCH64_NONE && r_type != R_AARCH64_NULL | |
| 6759 | && bfd_is_und_section (sec) | |
| 6760 | && ELF_ST_BIND (sym->st_info) != STB_WEAK) | |
| 1a72702b AM |
6761 | (*info->callbacks->undefined_symbol) |
| 6762 | (info, bfd_elf_string_from_elf_section | |
| 6763 | (input_bfd, symtab_hdr->sh_link, sym->st_name), | |
| 6764 | input_bfd, input_section, rel->r_offset, TRUE); | |
| a06ea964 | 6765 | |
| a06ea964 | 6766 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 1419bbe5 WN |
6767 | |
| 6768 | /* Relocate against local STT_GNU_IFUNC symbol. */ | |
| 0e1862bb | 6769 | if (!bfd_link_relocatable (info) |
| 1419bbe5 WN |
6770 | && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) |
| 6771 | { | |
| 6772 | h = elfNN_aarch64_get_local_sym_hash (globals, input_bfd, | |
| 6773 | rel, FALSE); | |
| 6774 | if (h == NULL) | |
| 6775 | abort (); | |
| 6776 | ||
| 6777 | /* Set STT_GNU_IFUNC symbol value. */ | |
| 6778 | h->root.u.def.value = sym->st_value; | |
| 6779 | h->root.u.def.section = sec; | |
| 6780 | } | |
| a06ea964 NC |
6781 | } |
| 6782 | else | |
| 6783 | { | |
| 62d887d4 | 6784 | bfd_boolean warned, ignored; |
| a06ea964 NC |
6785 | |
| 6786 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
| 6787 | r_symndx, symtab_hdr, sym_hashes, | |
| 6788 | h, sec, relocation, | |
| 62d887d4 | 6789 | unresolved_reloc, warned, ignored); |
| a06ea964 NC |
6790 | |
| 6791 | sym_type = h->type; | |
| 6792 | } | |
| 6793 | ||
| 6794 | if (sec != NULL && discarded_section (sec)) | |
| 6795 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, | |
| 6796 | rel, 1, relend, howto, 0, contents); | |
| 6797 | ||
| 0e1862bb | 6798 | if (bfd_link_relocatable (info)) |
| 2e0488d3 | 6799 | continue; |
| a06ea964 NC |
6800 | |
| 6801 | if (h != NULL) | |
| 6802 | name = h->root.root.string; | |
| 6803 | else | |
| 6804 | { | |
| 6805 | name = (bfd_elf_string_from_elf_section | |
| 6806 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
| 6807 | if (name == NULL || *name == '\0') | |
| fd361982 | 6808 | name = bfd_section_name (sec); |
| a06ea964 NC |
6809 | } |
| 6810 | ||
| 6811 | if (r_symndx != 0 | |
| 6812 | && r_type != R_AARCH64_NONE | |
| 6813 | && r_type != R_AARCH64_NULL | |
| 6814 | && (h == NULL | |
| 6815 | || h->root.type == bfd_link_hash_defined | |
| 6816 | || h->root.type == bfd_link_hash_defweak) | |
| a6bb11b2 | 6817 | && IS_AARCH64_TLS_RELOC (bfd_r_type) != (sym_type == STT_TLS)) |
| a06ea964 | 6818 | { |
| 4eca0228 | 6819 | _bfd_error_handler |
| a06ea964 | 6820 | ((sym_type == STT_TLS |
| 695344c0 | 6821 | /* xgettext:c-format */ |
| 2dcf00ce | 6822 | ? _("%pB(%pA+%#" PRIx64 "): %s used with TLS symbol %s") |
| 695344c0 | 6823 | /* xgettext:c-format */ |
| 2dcf00ce | 6824 | : _("%pB(%pA+%#" PRIx64 "): %s used with non-TLS symbol %s")), |
| a06ea964 | 6825 | input_bfd, |
| 2dcf00ce | 6826 | input_section, (uint64_t) rel->r_offset, howto->name, name); |
| a06ea964 NC |
6827 | } |
| 6828 | ||
| a06ea964 | 6829 | /* We relax only if we can see that there can be a valid transition |
| 07d6d2b8 AM |
6830 | from a reloc type to another. |
| 6831 | We call elfNN_aarch64_final_link_relocate unless we're completely | |
| 6832 | done, i.e., the relaxation produced the final output we want. */ | |
| a06ea964 | 6833 | |
| a6bb11b2 YZ |
6834 | relaxed_bfd_r_type = aarch64_tls_transition (input_bfd, info, r_type, |
| 6835 | h, r_symndx); | |
| 6836 | if (relaxed_bfd_r_type != bfd_r_type) | |
| a06ea964 | 6837 | { |
| a6bb11b2 YZ |
6838 | bfd_r_type = relaxed_bfd_r_type; |
| 6839 | howto = elfNN_aarch64_howto_from_bfd_reloc (bfd_r_type); | |
| 6840 | BFD_ASSERT (howto != NULL); | |
| 6841 | r_type = howto->type; | |
| 9fca35fc TC |
6842 | r = elfNN_aarch64_tls_relax (globals, input_bfd, input_section, |
| 6843 | contents, rel, h); | |
| a06ea964 NC |
6844 | unresolved_reloc = 0; |
| 6845 | } | |
| 6846 | else | |
| 6847 | r = bfd_reloc_continue; | |
| 6848 | ||
| 6849 | /* There may be multiple consecutive relocations for the | |
| 07d6d2b8 AM |
6850 | same offset. In that case we are supposed to treat the |
| 6851 | output of each relocation as the addend for the next. */ | |
| a06ea964 NC |
6852 | if (rel + 1 < relend |
| 6853 | && rel->r_offset == rel[1].r_offset | |
| cec5225b YZ |
6854 | && ELFNN_R_TYPE (rel[1].r_info) != R_AARCH64_NONE |
| 6855 | && ELFNN_R_TYPE (rel[1].r_info) != R_AARCH64_NULL) | |
| a06ea964 NC |
6856 | save_addend = TRUE; |
| 6857 | else | |
| 6858 | save_addend = FALSE; | |
| 6859 | ||
| 6860 | if (r == bfd_reloc_continue) | |
| cec5225b | 6861 | r = elfNN_aarch64_final_link_relocate (howto, input_bfd, output_bfd, |
| a06ea964 NC |
6862 | input_section, contents, rel, |
| 6863 | relocation, info, sec, | |
| 6864 | h, &unresolved_reloc, | |
| 1419bbe5 | 6865 | save_addend, &addend, sym); |
| a06ea964 | 6866 | |
| 0aa13fee | 6867 | switch (elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type)) |
| a06ea964 | 6868 | { |
| ce336788 | 6869 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a6bb11b2 | 6870 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 6871 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 7ba7cfe4 | 6872 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 6873 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| 73f925cc | 6874 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 6875 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 6876 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
6877 | if (! symbol_got_offset_mark_p (input_bfd, h, r_symndx)) |
| 6878 | { | |
| 6879 | bfd_boolean need_relocs = FALSE; | |
| 6880 | bfd_byte *loc; | |
| 6881 | int indx; | |
| 6882 | bfd_vma off; | |
| 6883 | ||
| 6884 | off = symbol_got_offset (input_bfd, h, r_symndx); | |
| 6885 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
| 6886 | ||
| 6887 | need_relocs = | |
| 6dda7875 | 6888 | (!bfd_link_executable (info) || indx != 0) && |
| a06ea964 NC |
6889 | (h == NULL |
| 6890 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 6891 | || h->root.type != bfd_link_hash_undefweak); | |
| 6892 | ||
| 6893 | BFD_ASSERT (globals->root.srelgot != NULL); | |
| 6894 | ||
| 6895 | if (need_relocs) | |
| 6896 | { | |
| 6897 | Elf_Internal_Rela rela; | |
| a6bb11b2 | 6898 | rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLS_DTPMOD)); |
| a06ea964 NC |
6899 | rela.r_addend = 0; |
| 6900 | rela.r_offset = globals->root.sgot->output_section->vma + | |
| 6901 | globals->root.sgot->output_offset + off; | |
| 6902 | ||
| 6903 | ||
| 6904 | loc = globals->root.srelgot->contents; | |
| 6905 | loc += globals->root.srelgot->reloc_count++ | |
| 6906 | * RELOC_SIZE (htab); | |
| cec5225b | 6907 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 | 6908 | |
| f69e4920 | 6909 | bfd_reloc_code_real_type real_type = |
| 0aa13fee | 6910 | elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| f69e4920 JW |
6911 | |
| 6912 | if (real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21 | |
| 73f925cc JW |
6913 | || real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21 |
| 6914 | || real_type == BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC) | |
| 77a69ff8 JW |
6915 | { |
| 6916 | /* For local dynamic, don't generate DTPREL in any case. | |
| 6917 | Initialize the DTPREL slot into zero, so we get module | |
| 6918 | base address when invoke runtime TLS resolver. */ | |
| 6919 | bfd_put_NN (output_bfd, 0, | |
| 6920 | globals->root.sgot->contents + off | |
| 6921 | + GOT_ENTRY_SIZE); | |
| 6922 | } | |
| 6923 | else if (indx == 0) | |
| a06ea964 | 6924 | { |
| cec5225b | 6925 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
6926 | relocation - dtpoff_base (info), |
| 6927 | globals->root.sgot->contents + off | |
| 6928 | + GOT_ENTRY_SIZE); | |
| 6929 | } | |
| 6930 | else | |
| 6931 | { | |
| 6932 | /* This TLS symbol is global. We emit a | |
| 6933 | relocation to fixup the tls offset at load | |
| 6934 | time. */ | |
| 6935 | rela.r_info = | |
| a6bb11b2 | 6936 | ELFNN_R_INFO (indx, AARCH64_R (TLS_DTPREL)); |
| a06ea964 NC |
6937 | rela.r_addend = 0; |
| 6938 | rela.r_offset = | |
| 6939 | (globals->root.sgot->output_section->vma | |
| 6940 | + globals->root.sgot->output_offset + off | |
| 6941 | + GOT_ENTRY_SIZE); | |
| 6942 | ||
| 6943 | loc = globals->root.srelgot->contents; | |
| 6944 | loc += globals->root.srelgot->reloc_count++ | |
| 6945 | * RELOC_SIZE (globals); | |
| cec5225b YZ |
6946 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| 6947 | bfd_put_NN (output_bfd, (bfd_vma) 0, | |
| a06ea964 NC |
6948 | globals->root.sgot->contents + off |
| 6949 | + GOT_ENTRY_SIZE); | |
| 6950 | } | |
| 6951 | } | |
| 6952 | else | |
| 6953 | { | |
| cec5225b | 6954 | bfd_put_NN (output_bfd, (bfd_vma) 1, |
| a06ea964 | 6955 | globals->root.sgot->contents + off); |
| cec5225b | 6956 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
6957 | relocation - dtpoff_base (info), |
| 6958 | globals->root.sgot->contents + off | |
| 6959 | + GOT_ENTRY_SIZE); | |
| 6960 | } | |
| 6961 | ||
| 6962 | symbol_got_offset_mark (input_bfd, h, r_symndx); | |
| 6963 | } | |
| 6964 | break; | |
| 6965 | ||
| a6bb11b2 YZ |
6966 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| 6967 | case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC: | |
| 043bf05a | 6968 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 3b957e5b RL |
6969 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 6970 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| a06ea964 NC |
6971 | if (! symbol_got_offset_mark_p (input_bfd, h, r_symndx)) |
| 6972 | { | |
| 6973 | bfd_boolean need_relocs = FALSE; | |
| 6974 | bfd_byte *loc; | |
| 6975 | int indx; | |
| 6976 | bfd_vma off; | |
| 6977 | ||
| 6978 | off = symbol_got_offset (input_bfd, h, r_symndx); | |
| 6979 | ||
| 6980 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
| 6981 | ||
| 6982 | need_relocs = | |
| 6dda7875 | 6983 | (!bfd_link_executable (info) || indx != 0) && |
| a06ea964 NC |
6984 | (h == NULL |
| 6985 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 6986 | || h->root.type != bfd_link_hash_undefweak); | |
| 6987 | ||
| 6988 | BFD_ASSERT (globals->root.srelgot != NULL); | |
| 6989 | ||
| 6990 | if (need_relocs) | |
| 6991 | { | |
| 6992 | Elf_Internal_Rela rela; | |
| 6993 | ||
| 6994 | if (indx == 0) | |
| 6995 | rela.r_addend = relocation - dtpoff_base (info); | |
| 6996 | else | |
| 6997 | rela.r_addend = 0; | |
| 6998 | ||
| a6bb11b2 | 6999 | rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLS_TPREL)); |
| a06ea964 NC |
7000 | rela.r_offset = globals->root.sgot->output_section->vma + |
| 7001 | globals->root.sgot->output_offset + off; | |
| 7002 | ||
| 7003 | loc = globals->root.srelgot->contents; | |
| 7004 | loc += globals->root.srelgot->reloc_count++ | |
| 7005 | * RELOC_SIZE (htab); | |
| 7006 | ||
| cec5225b | 7007 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 | 7008 | |
| cec5225b | 7009 | bfd_put_NN (output_bfd, rela.r_addend, |
| a06ea964 NC |
7010 | globals->root.sgot->contents + off); |
| 7011 | } | |
| 7012 | else | |
| cec5225b | 7013 | bfd_put_NN (output_bfd, relocation - tpoff_base (info), |
| a06ea964 NC |
7014 | globals->root.sgot->contents + off); |
| 7015 | ||
| 7016 | symbol_got_offset_mark (input_bfd, h, r_symndx); | |
| 7017 | } | |
| 7018 | break; | |
| 7019 | ||
| f955cccf | 7020 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 7021 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 7022 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| a6bb11b2 | 7023 | case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC: |
| 1ada945d | 7024 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 0484b454 RL |
7025 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
| 7026 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| a06ea964 NC |
7027 | if (! symbol_tlsdesc_got_offset_mark_p (input_bfd, h, r_symndx)) |
| 7028 | { | |
| 7029 | bfd_boolean need_relocs = FALSE; | |
| 7030 | int indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
| 7031 | bfd_vma off = symbol_tlsdesc_got_offset (input_bfd, h, r_symndx); | |
| 7032 | ||
| 7033 | need_relocs = (h == NULL | |
| 7034 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 7035 | || h->root.type != bfd_link_hash_undefweak); | |
| 7036 | ||
| 7037 | BFD_ASSERT (globals->root.srelgot != NULL); | |
| 7038 | BFD_ASSERT (globals->root.sgot != NULL); | |
| 7039 | ||
| 7040 | if (need_relocs) | |
| 7041 | { | |
| 7042 | bfd_byte *loc; | |
| 7043 | Elf_Internal_Rela rela; | |
| a6bb11b2 YZ |
7044 | rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLSDESC)); |
| 7045 | ||
| a06ea964 NC |
7046 | rela.r_addend = 0; |
| 7047 | rela.r_offset = (globals->root.sgotplt->output_section->vma | |
| 7048 | + globals->root.sgotplt->output_offset | |
| 7049 | + off + globals->sgotplt_jump_table_size); | |
| 7050 | ||
| 7051 | if (indx == 0) | |
| 7052 | rela.r_addend = relocation - dtpoff_base (info); | |
| 7053 | ||
| 7054 | /* Allocate the next available slot in the PLT reloc | |
| 7055 | section to hold our R_AARCH64_TLSDESC, the next | |
| 7056 | available slot is determined from reloc_count, | |
| 7057 | which we step. But note, reloc_count was | |
| 7058 | artifically moved down while allocating slots for | |
| 7059 | real PLT relocs such that all of the PLT relocs | |
| 7060 | will fit above the initial reloc_count and the | |
| 7061 | extra stuff will fit below. */ | |
| 7062 | loc = globals->root.srelplt->contents; | |
| 7063 | loc += globals->root.srelplt->reloc_count++ | |
| 7064 | * RELOC_SIZE (globals); | |
| 7065 | ||
| cec5225b | 7066 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 | 7067 | |
| cec5225b | 7068 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| a06ea964 NC |
7069 | globals->root.sgotplt->contents + off + |
| 7070 | globals->sgotplt_jump_table_size); | |
| cec5225b | 7071 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| a06ea964 NC |
7072 | globals->root.sgotplt->contents + off + |
| 7073 | globals->sgotplt_jump_table_size + | |
| 7074 | GOT_ENTRY_SIZE); | |
| 7075 | } | |
| 7076 | ||
| 7077 | symbol_tlsdesc_got_offset_mark (input_bfd, h, r_symndx); | |
| 7078 | } | |
| 7079 | break; | |
| a6bb11b2 YZ |
7080 | default: |
| 7081 | break; | |
| a06ea964 NC |
7082 | } |
| 7083 | ||
| a06ea964 | 7084 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 07d6d2b8 AM |
7085 | because such sections are not SEC_ALLOC and thus ld.so will |
| 7086 | not process them. */ | |
| a06ea964 NC |
7087 | if (unresolved_reloc |
| 7088 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
| 7089 | && h->def_dynamic) | |
| 7090 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 7091 | +rel->r_offset) != (bfd_vma) - 1) | |
| 7092 | { | |
| 4eca0228 | 7093 | _bfd_error_handler |
| 695344c0 | 7094 | /* xgettext:c-format */ |
| 2dcf00ce AM |
7095 | (_("%pB(%pA+%#" PRIx64 "): " |
| 7096 | "unresolvable %s relocation against symbol `%s'"), | |
| 7097 | input_bfd, input_section, (uint64_t) rel->r_offset, howto->name, | |
| a06ea964 NC |
7098 | h->root.root.string); |
| 7099 | return FALSE; | |
| 7100 | } | |
| 7101 | ||
| 7102 | if (r != bfd_reloc_ok && r != bfd_reloc_continue) | |
| 7103 | { | |
| c674f5cd | 7104 | bfd_reloc_code_real_type real_r_type |
| 0aa13fee | 7105 | = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| c674f5cd | 7106 | |
| a06ea964 NC |
7107 | switch (r) |
| 7108 | { | |
| 7109 | case bfd_reloc_overflow: | |
| 1a72702b AM |
7110 | (*info->callbacks->reloc_overflow) |
| 7111 | (info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0, | |
| 7112 | input_bfd, input_section, rel->r_offset); | |
| c674f5cd JW |
7113 | if (real_r_type == BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15 |
| 7114 | || real_r_type == BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14) | |
| 7115 | { | |
| 7116 | (*info->callbacks->warning) | |
| 7117 | (info, | |
| 90b6238f | 7118 | _("too many GOT entries for -fpic, " |
| c674f5cd JW |
7119 | "please recompile with -fPIC"), |
| 7120 | name, input_bfd, input_section, rel->r_offset); | |
| 7121 | return FALSE; | |
| 7122 | } | |
| 027e9c75 NC |
7123 | /* Overflow can occur when a variable is referenced with a type |
| 7124 | that has a larger alignment than the type with which it was | |
| 7125 | declared. eg: | |
| 7126 | file1.c: extern int foo; int a (void) { return foo; } | |
| 7127 | file2.c: char bar, foo, baz; | |
| 7128 | If the variable is placed into a data section at an offset | |
| 7129 | that is incompatible with the larger alignment requirement | |
| 7130 | overflow will occur. (Strictly speaking this is not overflow | |
| 7131 | but rather an alignment problem, but the bfd_reloc_ error | |
| 7132 | enum does not have a value to cover that situation). | |
| 7133 | ||
| 7134 | Try to catch this situation here and provide a more helpful | |
| 7135 | error message to the user. */ | |
| 7136 | if (addend & ((1 << howto->rightshift) - 1) | |
| 7137 | /* FIXME: Are we testing all of the appropriate reloc | |
| 7138 | types here ? */ | |
| 7139 | && (real_r_type == BFD_RELOC_AARCH64_LD_LO19_PCREL | |
| 7140 | || real_r_type == BFD_RELOC_AARCH64_LDST16_LO12 | |
| 7141 | || real_r_type == BFD_RELOC_AARCH64_LDST32_LO12 | |
| 7142 | || real_r_type == BFD_RELOC_AARCH64_LDST64_LO12 | |
| 7143 | || real_r_type == BFD_RELOC_AARCH64_LDST128_LO12)) | |
| 7144 | { | |
| 7145 | info->callbacks->warning | |
| 90b6238f | 7146 | (info, _("one possible cause of this error is that the \ |
| 027e9c75 | 7147 | symbol is being referenced in the indicated code as if it had a larger \ |
| 90b6238f | 7148 | alignment than was declared where it was defined"), |
| 027e9c75 NC |
7149 | name, input_bfd, input_section, rel->r_offset); |
| 7150 | } | |
| a06ea964 NC |
7151 | break; |
| 7152 | ||
| 7153 | case bfd_reloc_undefined: | |
| 1a72702b AM |
7154 | (*info->callbacks->undefined_symbol) |
| 7155 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); | |
| a06ea964 NC |
7156 | break; |
| 7157 | ||
| 7158 | case bfd_reloc_outofrange: | |
| 7159 | error_message = _("out of range"); | |
| 7160 | goto common_error; | |
| 7161 | ||
| 7162 | case bfd_reloc_notsupported: | |
| 7163 | error_message = _("unsupported relocation"); | |
| 7164 | goto common_error; | |
| 7165 | ||
| 7166 | case bfd_reloc_dangerous: | |
| 7167 | /* error_message should already be set. */ | |
| 7168 | goto common_error; | |
| 7169 | ||
| 7170 | default: | |
| 7171 | error_message = _("unknown error"); | |
| 7172 | /* Fall through. */ | |
| 7173 | ||
| 7174 | common_error: | |
| 7175 | BFD_ASSERT (error_message != NULL); | |
| 1a72702b AM |
7176 | (*info->callbacks->reloc_dangerous) |
| 7177 | (info, error_message, input_bfd, input_section, rel->r_offset); | |
| a06ea964 NC |
7178 | break; |
| 7179 | } | |
| 7180 | } | |
| 027e9c75 NC |
7181 | |
| 7182 | if (!save_addend) | |
| 7183 | addend = 0; | |
| a06ea964 NC |
7184 | } |
| 7185 | ||
| 7186 | return TRUE; | |
| 7187 | } | |
| 7188 | ||
| 7189 | /* Set the right machine number. */ | |
| 7190 | ||
| 7191 | static bfd_boolean | |
| cec5225b | 7192 | elfNN_aarch64_object_p (bfd *abfd) |
| a06ea964 | 7193 | { |
| cec5225b YZ |
7194 | #if ARCH_SIZE == 32 |
| 7195 | bfd_default_set_arch_mach (abfd, bfd_arch_aarch64, bfd_mach_aarch64_ilp32); | |
| 7196 | #else | |
| a06ea964 | 7197 | bfd_default_set_arch_mach (abfd, bfd_arch_aarch64, bfd_mach_aarch64); |
| cec5225b | 7198 | #endif |
| a06ea964 NC |
7199 | return TRUE; |
| 7200 | } | |
| 7201 | ||
| 7202 | /* Function to keep AArch64 specific flags in the ELF header. */ | |
| 7203 | ||
| 7204 | static bfd_boolean | |
| cec5225b | 7205 | elfNN_aarch64_set_private_flags (bfd *abfd, flagword flags) |
| a06ea964 NC |
7206 | { |
| 7207 | if (elf_flags_init (abfd) && elf_elfheader (abfd)->e_flags != flags) | |
| 7208 | { | |
| 7209 | } | |
| 7210 | else | |
| 7211 | { | |
| 7212 | elf_elfheader (abfd)->e_flags = flags; | |
| 7213 | elf_flags_init (abfd) = TRUE; | |
| 7214 | } | |
| 7215 | ||
| 7216 | return TRUE; | |
| 7217 | } | |
| 7218 | ||
| a06ea964 NC |
7219 | /* Merge backend specific data from an object file to the output |
| 7220 | object file when linking. */ | |
| 7221 | ||
| 7222 | static bfd_boolean | |
| 50e03d47 | 7223 | elfNN_aarch64_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| a06ea964 | 7224 | { |
| 50e03d47 | 7225 | bfd *obfd = info->output_bfd; |
| a06ea964 NC |
7226 | flagword out_flags; |
| 7227 | flagword in_flags; | |
| 7228 | bfd_boolean flags_compatible = TRUE; | |
| 7229 | asection *sec; | |
| 7230 | ||
| 7231 | /* Check if we have the same endianess. */ | |
| 50e03d47 | 7232 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| a06ea964 NC |
7233 | return FALSE; |
| 7234 | ||
| 7235 | if (!is_aarch64_elf (ibfd) || !is_aarch64_elf (obfd)) | |
| 7236 | return TRUE; | |
| 7237 | ||
| 7238 | /* The input BFD must have had its flags initialised. */ | |
| 7239 | /* The following seems bogus to me -- The flags are initialized in | |
| 7240 | the assembler but I don't think an elf_flags_init field is | |
| 7241 | written into the object. */ | |
| 7242 | /* BFD_ASSERT (elf_flags_init (ibfd)); */ | |
| 7243 | ||
| 7244 | in_flags = elf_elfheader (ibfd)->e_flags; | |
| 7245 | out_flags = elf_elfheader (obfd)->e_flags; | |
| 7246 | ||
| 7247 | if (!elf_flags_init (obfd)) | |
| 7248 | { | |
| 7249 | /* If the input is the default architecture and had the default | |
| 07d6d2b8 AM |
7250 | flags then do not bother setting the flags for the output |
| 7251 | architecture, instead allow future merges to do this. If no | |
| 7252 | future merges ever set these flags then they will retain their | |
| 7253 | uninitialised values, which surprise surprise, correspond | |
| 7254 | to the default values. */ | |
| a06ea964 NC |
7255 | if (bfd_get_arch_info (ibfd)->the_default |
| 7256 | && elf_elfheader (ibfd)->e_flags == 0) | |
| 7257 | return TRUE; | |
| 7258 | ||
| 7259 | elf_flags_init (obfd) = TRUE; | |
| 7260 | elf_elfheader (obfd)->e_flags = in_flags; | |
| 7261 | ||
| 7262 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
| 7263 | && bfd_get_arch_info (obfd)->the_default) | |
| 7264 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
| 7265 | bfd_get_mach (ibfd)); | |
| 7266 | ||
| 7267 | return TRUE; | |
| 7268 | } | |
| 7269 | ||
| 7270 | /* Identical flags must be compatible. */ | |
| 7271 | if (in_flags == out_flags) | |
| 7272 | return TRUE; | |
| 7273 | ||
| 7274 | /* Check to see if the input BFD actually contains any sections. If | |
| 7275 | not, its flags may not have been initialised either, but it | |
| 7276 | cannot actually cause any incompatiblity. Do not short-circuit | |
| 7277 | dynamic objects; their section list may be emptied by | |
| 7278 | elf_link_add_object_symbols. | |
| 7279 | ||
| 7280 | Also check to see if there are no code sections in the input. | |
| 7281 | In this case there is no need to check for code specific flags. | |
| 7282 | XXX - do we need to worry about floating-point format compatability | |
| 7283 | in data sections ? */ | |
| 7284 | if (!(ibfd->flags & DYNAMIC)) | |
| 7285 | { | |
| 7286 | bfd_boolean null_input_bfd = TRUE; | |
| 7287 | bfd_boolean only_data_sections = TRUE; | |
| 7288 | ||
| 7289 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 7290 | { | |
| fd361982 | 7291 | if ((bfd_section_flags (sec) |
| a06ea964 NC |
7292 | & (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) |
| 7293 | == (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) | |
| 7294 | only_data_sections = FALSE; | |
| 7295 | ||
| 7296 | null_input_bfd = FALSE; | |
| 7297 | break; | |
| 7298 | } | |
| 7299 | ||
| 7300 | if (null_input_bfd || only_data_sections) | |
| 7301 | return TRUE; | |
| 7302 | } | |
| 7303 | ||
| 7304 | return flags_compatible; | |
| 7305 | } | |
| 7306 | ||
| 7307 | /* Display the flags field. */ | |
| 7308 | ||
| 7309 | static bfd_boolean | |
| cec5225b | 7310 | elfNN_aarch64_print_private_bfd_data (bfd *abfd, void *ptr) |
| a06ea964 NC |
7311 | { |
| 7312 | FILE *file = (FILE *) ptr; | |
| 7313 | unsigned long flags; | |
| 7314 | ||
| 7315 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
| 7316 | ||
| 7317 | /* Print normal ELF private data. */ | |
| 7318 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 7319 | ||
| 7320 | flags = elf_elfheader (abfd)->e_flags; | |
| 7321 | /* Ignore init flag - it may not be set, despite the flags field | |
| 7322 | containing valid data. */ | |
| 7323 | ||
| 7324 | /* xgettext:c-format */ | |
| 7325 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); | |
| 7326 | ||
| 7327 | if (flags) | |
| 7328 | fprintf (file, _("<Unrecognised flag bits set>")); | |
| 7329 | ||
| 7330 | fputc ('\n', file); | |
| 7331 | ||
| 7332 | return TRUE; | |
| 7333 | } | |
| 7334 | ||
| 63c1f59d AM |
7335 | /* Find dynamic relocs for H that apply to read-only sections. */ |
| 7336 | ||
| 7337 | static asection * | |
| 7338 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7339 | { | |
| 7340 | struct elf_dyn_relocs *p; | |
| 7341 | ||
| 7342 | for (p = elf_aarch64_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
| 7343 | { | |
| 7344 | asection *s = p->sec->output_section; | |
| 7345 | ||
| 7346 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7347 | return p->sec; | |
| 7348 | } | |
| 7349 | return NULL; | |
| 7350 | } | |
| 7351 | ||
| 6353d82b JW |
7352 | /* Return true if we need copy relocation against EH. */ |
| 7353 | ||
| 7354 | static bfd_boolean | |
| 7355 | need_copy_relocation_p (struct elf_aarch64_link_hash_entry *eh) | |
| 7356 | { | |
| 7357 | struct elf_dyn_relocs *p; | |
| 7358 | asection *s; | |
| 7359 | ||
| 7360 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7361 | { | |
| 7362 | /* If there is any pc-relative reference, we need to keep copy relocation | |
| 7363 | to avoid propagating the relocation into runtime that current glibc | |
| 7364 | does not support. */ | |
| 7365 | if (p->pc_count) | |
| 7366 | return TRUE; | |
| 7367 | ||
| 7368 | s = p->sec->output_section; | |
| 7369 | /* Need copy relocation if it's against read-only section. */ | |
| 7370 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7371 | return TRUE; | |
| 7372 | } | |
| 7373 | ||
| 7374 | return FALSE; | |
| 7375 | } | |
| 7376 | ||
| a06ea964 NC |
7377 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7378 | regular object. The current definition is in some section of the | |
| 7379 | dynamic object, but we're not including those sections. We have to | |
| 7380 | change the definition to something the rest of the link can | |
| 7381 | understand. */ | |
| 7382 | ||
| 7383 | static bfd_boolean | |
| cec5225b | 7384 | elfNN_aarch64_adjust_dynamic_symbol (struct bfd_link_info *info, |
| a06ea964 NC |
7385 | struct elf_link_hash_entry *h) |
| 7386 | { | |
| cec5225b | 7387 | struct elf_aarch64_link_hash_table *htab; |
| 5474d94f | 7388 | asection *s, *srel; |
| a06ea964 NC |
7389 | |
| 7390 | /* If this is a function, put it in the procedure linkage table. We | |
| 7391 | will fill in the contents of the procedure linkage table later, | |
| 7392 | when we know the address of the .got section. */ | |
| 1419bbe5 | 7393 | if (h->type == STT_FUNC || h->type == STT_GNU_IFUNC || h->needs_plt) |
| a06ea964 NC |
7394 | { |
| 7395 | if (h->plt.refcount <= 0 | |
| 1419bbe5 WN |
7396 | || (h->type != STT_GNU_IFUNC |
| 7397 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 7398 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| 7399 | && h->root.type == bfd_link_hash_undefweak)))) | |
| a06ea964 NC |
7400 | { |
| 7401 | /* This case can occur if we saw a CALL26 reloc in | |
| 7402 | an input file, but the symbol wasn't referred to | |
| 7403 | by a dynamic object or all references were | |
| 7404 | garbage collected. In which case we can end up | |
| 7405 | resolving. */ | |
| 7406 | h->plt.offset = (bfd_vma) - 1; | |
| 7407 | h->needs_plt = 0; | |
| 7408 | } | |
| 7409 | ||
| 7410 | return TRUE; | |
| 7411 | } | |
| 7412 | else | |
| 80de0c6d | 7413 | /* Otherwise, reset to -1. */ |
| a06ea964 NC |
7414 | h->plt.offset = (bfd_vma) - 1; |
| 7415 | ||
| 7416 | ||
| 7417 | /* If this is a weak symbol, and there is a real definition, the | |
| 7418 | processor independent code will have arranged for us to see the | |
| 7419 | real definition first, and we can just use the same value. */ | |
| 60d67dc8 | 7420 | if (h->is_weakalias) |
| a06ea964 | 7421 | { |
| 60d67dc8 AM |
7422 | struct elf_link_hash_entry *def = weakdef (h); |
| 7423 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
| 7424 | h->root.u.def.section = def->root.u.def.section; | |
| 7425 | h->root.u.def.value = def->root.u.def.value; | |
| a06ea964 | 7426 | if (ELIMINATE_COPY_RELOCS || info->nocopyreloc) |
| 60d67dc8 | 7427 | h->non_got_ref = def->non_got_ref; |
| a06ea964 NC |
7428 | return TRUE; |
| 7429 | } | |
| 7430 | ||
| 7431 | /* If we are creating a shared library, we must presume that the | |
| 7432 | only references to the symbol are via the global offset table. | |
| 7433 | For such cases we need not do anything here; the relocations will | |
| 7434 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7435 | if (bfd_link_pic (info)) |
| a06ea964 NC |
7436 | return TRUE; |
| 7437 | ||
| 7438 | /* If there are no references to this symbol that do not use the | |
| 7439 | GOT, we don't need to generate a copy reloc. */ | |
| 7440 | if (!h->non_got_ref) | |
| 7441 | return TRUE; | |
| 7442 | ||
| 7443 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
| 7444 | if (info->nocopyreloc) | |
| 7445 | { | |
| 7446 | h->non_got_ref = 0; | |
| 7447 | return TRUE; | |
| 7448 | } | |
| 7449 | ||
| 6353d82b JW |
7450 | if (ELIMINATE_COPY_RELOCS) |
| 7451 | { | |
| 7452 | struct elf_aarch64_link_hash_entry *eh; | |
| dce2246a | 7453 | /* If we don't find any dynamic relocs in read-only sections, then |
| 6353d82b JW |
7454 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
| 7455 | eh = (struct elf_aarch64_link_hash_entry *) h; | |
| 7456 | if (!need_copy_relocation_p (eh)) | |
| 7457 | { | |
| 7458 | h->non_got_ref = 0; | |
| 7459 | return TRUE; | |
| 7460 | } | |
| 7461 | } | |
| 7462 | ||
| a06ea964 NC |
7463 | /* We must allocate the symbol in our .dynbss section, which will |
| 7464 | become part of the .bss section of the executable. There will be | |
| 7465 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7466 | object will contain position independent code, so all references | |
| 7467 | from the dynamic object to this symbol will go through the global | |
| 7468 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7469 | determine the address it must put in the global offset table, so | |
| 7470 | both the dynamic object and the regular object will refer to the | |
| 7471 | same memory location for the variable. */ | |
| 7472 | ||
| cec5225b | 7473 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
7474 | |
| 7475 | /* We must generate a R_AARCH64_COPY reloc to tell the dynamic linker | |
| 7476 | to copy the initial value out of the dynamic object and into the | |
| 7477 | runtime process image. */ | |
| 5474d94f AM |
7478 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 7479 | { | |
| 7480 | s = htab->root.sdynrelro; | |
| 7481 | srel = htab->root.sreldynrelro; | |
| 7482 | } | |
| 7483 | else | |
| 7484 | { | |
| 7485 | s = htab->root.sdynbss; | |
| 7486 | srel = htab->root.srelbss; | |
| 7487 | } | |
| a06ea964 NC |
7488 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 7489 | { | |
| 5474d94f | 7490 | srel->size += RELOC_SIZE (htab); |
| a06ea964 NC |
7491 | h->needs_copy = 1; |
| 7492 | } | |
| 7493 | ||
| 6cabe1ea | 7494 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| a06ea964 NC |
7495 | |
| 7496 | } | |
| 7497 | ||
| 7498 | static bfd_boolean | |
| cec5225b | 7499 | elfNN_aarch64_allocate_local_symbols (bfd *abfd, unsigned number) |
| a06ea964 NC |
7500 | { |
| 7501 | struct elf_aarch64_local_symbol *locals; | |
| cec5225b | 7502 | locals = elf_aarch64_locals (abfd); |
| a06ea964 NC |
7503 | if (locals == NULL) |
| 7504 | { | |
| 7505 | locals = (struct elf_aarch64_local_symbol *) | |
| 7506 | bfd_zalloc (abfd, number * sizeof (struct elf_aarch64_local_symbol)); | |
| 7507 | if (locals == NULL) | |
| 7508 | return FALSE; | |
| cec5225b | 7509 | elf_aarch64_locals (abfd) = locals; |
| a06ea964 NC |
7510 | } |
| 7511 | return TRUE; | |
| 7512 | } | |
| 7513 | ||
| cc0efaa8 MS |
7514 | /* Create the .got section to hold the global offset table. */ |
| 7515 | ||
| 7516 | static bfd_boolean | |
| 7517 | aarch64_elf_create_got_section (bfd *abfd, struct bfd_link_info *info) | |
| 7518 | { | |
| 7519 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
| 7520 | flagword flags; | |
| 7521 | asection *s; | |
| 7522 | struct elf_link_hash_entry *h; | |
| 7523 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 7524 | ||
| 7525 | /* This function may be called more than once. */ | |
| ce558b89 | 7526 | if (htab->sgot != NULL) |
| cc0efaa8 MS |
7527 | return TRUE; |
| 7528 | ||
| 7529 | flags = bed->dynamic_sec_flags; | |
| 7530 | ||
| 7531 | s = bfd_make_section_anyway_with_flags (abfd, | |
| 7532 | (bed->rela_plts_and_copies_p | |
| 7533 | ? ".rela.got" : ".rel.got"), | |
| 7534 | (bed->dynamic_sec_flags | |
| 7535 | | SEC_READONLY)); | |
| 7536 | if (s == NULL | |
| fd361982 | 7537 | || !bfd_set_section_alignment (s, bed->s->log_file_align)) |
| cc0efaa8 MS |
7538 | return FALSE; |
| 7539 | htab->srelgot = s; | |
| 7540 | ||
| 7541 | s = bfd_make_section_anyway_with_flags (abfd, ".got", flags); | |
| 7542 | if (s == NULL | |
| fd361982 | 7543 | || !bfd_set_section_alignment (s, bed->s->log_file_align)) |
| cc0efaa8 MS |
7544 | return FALSE; |
| 7545 | htab->sgot = s; | |
| 7546 | htab->sgot->size += GOT_ENTRY_SIZE; | |
| 7547 | ||
| 7548 | if (bed->want_got_sym) | |
| 7549 | { | |
| 7550 | /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got | |
| 7551 | (or .got.plt) section. We don't do this in the linker script | |
| 7552 | because we don't want to define the symbol if we are not creating | |
| 7553 | a global offset table. */ | |
| 7554 | h = _bfd_elf_define_linkage_sym (abfd, info, s, | |
| 7555 | "_GLOBAL_OFFSET_TABLE_"); | |
| 7556 | elf_hash_table (info)->hgot = h; | |
| 7557 | if (h == NULL) | |
| 7558 | return FALSE; | |
| 7559 | } | |
| 7560 | ||
| 7561 | if (bed->want_got_plt) | |
| 7562 | { | |
| 7563 | s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags); | |
| 7564 | if (s == NULL | |
| fd361982 | 7565 | || !bfd_set_section_alignment (s, bed->s->log_file_align)) |
| cc0efaa8 MS |
7566 | return FALSE; |
| 7567 | htab->sgotplt = s; | |
| 7568 | } | |
| 7569 | ||
| 7570 | /* The first bit of the global offset table is the header. */ | |
| 7571 | s->size += bed->got_header_size; | |
| 7572 | ||
| 7573 | return TRUE; | |
| 7574 | } | |
| 7575 | ||
| a06ea964 NC |
7576 | /* Look through the relocs for a section during the first phase. */ |
| 7577 | ||
| 7578 | static bfd_boolean | |
| cec5225b | 7579 | elfNN_aarch64_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| a06ea964 NC |
7580 | asection *sec, const Elf_Internal_Rela *relocs) |
| 7581 | { | |
| 7582 | Elf_Internal_Shdr *symtab_hdr; | |
| 7583 | struct elf_link_hash_entry **sym_hashes; | |
| 7584 | const Elf_Internal_Rela *rel; | |
| 7585 | const Elf_Internal_Rela *rel_end; | |
| 7586 | asection *sreloc; | |
| 7587 | ||
| cec5225b | 7588 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 | 7589 | |
| 0e1862bb | 7590 | if (bfd_link_relocatable (info)) |
| a06ea964 NC |
7591 | return TRUE; |
| 7592 | ||
| 7593 | BFD_ASSERT (is_aarch64_elf (abfd)); | |
| 7594 | ||
| cec5225b | 7595 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
7596 | sreloc = NULL; |
| 7597 | ||
| 7598 | symtab_hdr = &elf_symtab_hdr (abfd); | |
| 7599 | sym_hashes = elf_sym_hashes (abfd); | |
| a06ea964 NC |
7600 | |
| 7601 | rel_end = relocs + sec->reloc_count; | |
| 7602 | for (rel = relocs; rel < rel_end; rel++) | |
| 7603 | { | |
| 7604 | struct elf_link_hash_entry *h; | |
| d42c267e | 7605 | unsigned int r_symndx; |
| a06ea964 | 7606 | unsigned int r_type; |
| a6bb11b2 | 7607 | bfd_reloc_code_real_type bfd_r_type; |
| 1419bbe5 | 7608 | Elf_Internal_Sym *isym; |
| a06ea964 | 7609 | |
| cec5225b YZ |
7610 | r_symndx = ELFNN_R_SYM (rel->r_info); |
| 7611 | r_type = ELFNN_R_TYPE (rel->r_info); | |
| a06ea964 NC |
7612 | |
| 7613 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
| 7614 | { | |
| 695344c0 | 7615 | /* xgettext:c-format */ |
| 871b3ab2 | 7616 | _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx); |
| a06ea964 NC |
7617 | return FALSE; |
| 7618 | } | |
| 7619 | ||
| ed5acf27 | 7620 | if (r_symndx < symtab_hdr->sh_info) |
| 1419bbe5 WN |
7621 | { |
| 7622 | /* A local symbol. */ | |
| 7623 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 7624 | abfd, r_symndx); | |
| 7625 | if (isym == NULL) | |
| 7626 | return FALSE; | |
| 7627 | ||
| 7628 | /* Check relocation against local STT_GNU_IFUNC symbol. */ | |
| 7629 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 7630 | { | |
| 7631 | h = elfNN_aarch64_get_local_sym_hash (htab, abfd, rel, | |
| 7632 | TRUE); | |
| 7633 | if (h == NULL) | |
| 7634 | return FALSE; | |
| 7635 | ||
| 7636 | /* Fake a STT_GNU_IFUNC symbol. */ | |
| 7637 | h->type = STT_GNU_IFUNC; | |
| 7638 | h->def_regular = 1; | |
| 7639 | h->ref_regular = 1; | |
| 7640 | h->forced_local = 1; | |
| 7641 | h->root.type = bfd_link_hash_defined; | |
| 7642 | } | |
| 7643 | else | |
| 7644 | h = NULL; | |
| 7645 | } | |
| a06ea964 NC |
7646 | else |
| 7647 | { | |
| 7648 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| 7649 | while (h->root.type == bfd_link_hash_indirect | |
| 7650 | || h->root.type == bfd_link_hash_warning) | |
| 7651 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 7652 | } | |
| 7653 | ||
| 7654 | /* Could be done earlier, if h were already available. */ | |
| a6bb11b2 | 7655 | bfd_r_type = aarch64_tls_transition (abfd, info, r_type, h, r_symndx); |
| a06ea964 | 7656 | |
| 1419bbe5 WN |
7657 | if (h != NULL) |
| 7658 | { | |
| 18f822a0 JW |
7659 | /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. |
| 7660 | This shows up in particular in an R_AARCH64_PREL64 in large model | |
| 7661 | when calculating the pc-relative address to .got section which is | |
| 7662 | used to initialize the gp register. */ | |
| 7663 | if (h->root.root.string | |
| 7664 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
| 7665 | { | |
| 7666 | if (htab->root.dynobj == NULL) | |
| 7667 | htab->root.dynobj = abfd; | |
| 7668 | ||
| 7669 | if (! aarch64_elf_create_got_section (htab->root.dynobj, info)) | |
| 7670 | return FALSE; | |
| 7671 | ||
| 7672 | BFD_ASSERT (h == htab->root.hgot); | |
| 7673 | } | |
| 7674 | ||
| 1419bbe5 WN |
7675 | /* Create the ifunc sections for static executables. If we |
| 7676 | never see an indirect function symbol nor we are building | |
| 7677 | a static executable, those sections will be empty and | |
| 7678 | won't appear in output. */ | |
| 7679 | switch (bfd_r_type) | |
| 7680 | { | |
| 7681 | default: | |
| 7682 | break; | |
| 7683 | ||
| ce336788 JW |
7684 | case BFD_RELOC_AARCH64_ADD_LO12: |
| 7685 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: | |
| 7686 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: | |
| 1419bbe5 | 7687 | case BFD_RELOC_AARCH64_CALL26: |
| ce336788 | 7688 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: |
| 1419bbe5 | 7689 | case BFD_RELOC_AARCH64_JUMP26: |
| 7018c030 | 7690 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| 1419bbe5 | 7691 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| a2e1db00 | 7692 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 99ad26cb | 7693 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| 1419bbe5 | 7694 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| dc8008f5 | 7695 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 7696 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| ce336788 | 7697 | case BFD_RELOC_AARCH64_NN: |
| 1419bbe5 WN |
7698 | if (htab->root.dynobj == NULL) |
| 7699 | htab->root.dynobj = abfd; | |
| 7700 | if (!_bfd_elf_create_ifunc_sections (htab->root.dynobj, info)) | |
| 7701 | return FALSE; | |
| 7702 | break; | |
| 7703 | } | |
| 7704 | ||
| 2d0ca824 | 7705 | /* It is referenced by a non-shared object. */ |
| 1419bbe5 | 7706 | h->ref_regular = 1; |
| 1419bbe5 WN |
7707 | } |
| 7708 | ||
| a6bb11b2 | 7709 | switch (bfd_r_type) |
| a06ea964 | 7710 | { |
| 79e74192 RL |
7711 | case BFD_RELOC_AARCH64_16: |
| 7712 | #if ARCH_SIZE == 64 | |
| 7713 | case BFD_RELOC_AARCH64_32: | |
| 7714 | #endif | |
| 279b2f94 | 7715 | if (bfd_link_pic (info) && (sec->flags & SEC_ALLOC) != 0) |
| 79e74192 | 7716 | { |
| 279b2f94 RL |
7717 | if (h != NULL |
| 7718 | /* This is an absolute symbol. It represents a value instead | |
| 7719 | of an address. */ | |
| c691de6a | 7720 | && (bfd_is_abs_symbol (&h->root) |
| 279b2f94 RL |
7721 | /* This is an undefined symbol. */ |
| 7722 | || h->root.type == bfd_link_hash_undefined)) | |
| 7723 | break; | |
| 7724 | ||
| 7725 | /* For local symbols, defined global symbols in a non-ABS section, | |
| 7726 | it is assumed that the value is an address. */ | |
| 79e74192 RL |
7727 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; |
| 7728 | _bfd_error_handler | |
| 7729 | /* xgettext:c-format */ | |
| 871b3ab2 | 7730 | (_("%pB: relocation %s against `%s' can not be used when making " |
| 79e74192 RL |
7731 | "a shared object"), |
| 7732 | abfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 7733 | (h) ? h->root.root.string : "a local symbol"); | |
| 7734 | bfd_set_error (bfd_error_bad_value); | |
| 7735 | return FALSE; | |
| 7736 | } | |
| 7737 | else | |
| 7738 | break; | |
| 7739 | ||
| 6353d82b JW |
7740 | case BFD_RELOC_AARCH64_MOVW_G0_NC: |
| 7741 | case BFD_RELOC_AARCH64_MOVW_G1_NC: | |
| 7742 | case BFD_RELOC_AARCH64_MOVW_G2_NC: | |
| 7743 | case BFD_RELOC_AARCH64_MOVW_G3: | |
| 7744 | if (bfd_link_pic (info)) | |
| 7745 | { | |
| 7746 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 7747 | _bfd_error_handler | |
| 7748 | /* xgettext:c-format */ | |
| 871b3ab2 | 7749 | (_("%pB: relocation %s against `%s' can not be used when making " |
| 6353d82b JW |
7750 | "a shared object; recompile with -fPIC"), |
| 7751 | abfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 7752 | (h) ? h->root.root.string : "a local symbol"); | |
| 7753 | bfd_set_error (bfd_error_bad_value); | |
| 7754 | return FALSE; | |
| 7755 | } | |
| 7756 | /* Fall through. */ | |
| 7757 | ||
| 7758 | case BFD_RELOC_AARCH64_16_PCREL: | |
| 7759 | case BFD_RELOC_AARCH64_32_PCREL: | |
| 7760 | case BFD_RELOC_AARCH64_64_PCREL: | |
| 7761 | case BFD_RELOC_AARCH64_ADD_LO12: | |
| 7762 | case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL: | |
| 7763 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: | |
| 7764 | case BFD_RELOC_AARCH64_ADR_LO21_PCREL: | |
| 7765 | case BFD_RELOC_AARCH64_LDST128_LO12: | |
| 7766 | case BFD_RELOC_AARCH64_LDST16_LO12: | |
| 7767 | case BFD_RELOC_AARCH64_LDST32_LO12: | |
| 7768 | case BFD_RELOC_AARCH64_LDST64_LO12: | |
| 7769 | case BFD_RELOC_AARCH64_LDST8_LO12: | |
| 7770 | case BFD_RELOC_AARCH64_LD_LO19_PCREL: | |
| 7771 | if (h == NULL || bfd_link_pic (info)) | |
| 7772 | break; | |
| 7773 | /* Fall through. */ | |
| 7774 | ||
| a6bb11b2 | 7775 | case BFD_RELOC_AARCH64_NN: |
| a06ea964 NC |
7776 | |
| 7777 | /* We don't need to handle relocs into sections not going into | |
| 7778 | the "real" output. */ | |
| 7779 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 7780 | break; | |
| 7781 | ||
| 7782 | if (h != NULL) | |
| 7783 | { | |
| 0e1862bb | 7784 | if (!bfd_link_pic (info)) |
| a06ea964 NC |
7785 | h->non_got_ref = 1; |
| 7786 | ||
| 7787 | h->plt.refcount += 1; | |
| 7788 | h->pointer_equality_needed = 1; | |
| 7789 | } | |
| 7790 | ||
| 7791 | /* No need to do anything if we're not creating a shared | |
| 7792 | object. */ | |
| 6353d82b JW |
7793 | if (!(bfd_link_pic (info) |
| 7794 | /* If on the other hand, we are creating an executable, we | |
| 7795 | may need to keep relocations for symbols satisfied by a | |
| 7796 | dynamic library if we manage to avoid copy relocs for the | |
| 7797 | symbol. | |
| 7798 | ||
| 7799 | NOTE: Currently, there is no support of copy relocs | |
| 7800 | elimination on pc-relative relocation types, because there is | |
| 7801 | no dynamic relocation support for them in glibc. We still | |
| 7802 | record the dynamic symbol reference for them. This is | |
| 7803 | because one symbol may be referenced by both absolute | |
| 7804 | relocation (for example, BFD_RELOC_AARCH64_NN) and | |
| 7805 | pc-relative relocation. We need full symbol reference | |
| 7806 | information to make correct decision later in | |
| 7807 | elfNN_aarch64_adjust_dynamic_symbol. */ | |
| 7808 | || (ELIMINATE_COPY_RELOCS | |
| 7809 | && !bfd_link_pic (info) | |
| 7810 | && h != NULL | |
| 7811 | && (h->root.type == bfd_link_hash_defweak | |
| 7812 | || !h->def_regular)))) | |
| a06ea964 NC |
7813 | break; |
| 7814 | ||
| 7815 | { | |
| 7816 | struct elf_dyn_relocs *p; | |
| 7817 | struct elf_dyn_relocs **head; | |
| 6353d82b | 7818 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; |
| a06ea964 NC |
7819 | |
| 7820 | /* We must copy these reloc types into the output file. | |
| 7821 | Create a reloc section in dynobj and make room for | |
| 7822 | this reloc. */ | |
| 7823 | if (sreloc == NULL) | |
| 7824 | { | |
| 7825 | if (htab->root.dynobj == NULL) | |
| 7826 | htab->root.dynobj = abfd; | |
| 7827 | ||
| 7828 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
| 0608afa7 | 7829 | (sec, htab->root.dynobj, LOG_FILE_ALIGN, abfd, /*rela? */ TRUE); |
| a06ea964 NC |
7830 | |
| 7831 | if (sreloc == NULL) | |
| 7832 | return FALSE; | |
| 7833 | } | |
| 7834 | ||
| 7835 | /* If this is a global symbol, we count the number of | |
| 7836 | relocations we need for this symbol. */ | |
| 7837 | if (h != NULL) | |
| 7838 | { | |
| cec5225b YZ |
7839 | struct elf_aarch64_link_hash_entry *eh; |
| 7840 | eh = (struct elf_aarch64_link_hash_entry *) h; | |
| a06ea964 NC |
7841 | head = &eh->dyn_relocs; |
| 7842 | } | |
| 7843 | else | |
| 7844 | { | |
| 7845 | /* Track dynamic relocs needed for local syms too. | |
| 7846 | We really need local syms available to do this | |
| 7847 | easily. Oh well. */ | |
| 7848 | ||
| 7849 | asection *s; | |
| 7850 | void **vpp; | |
| a06ea964 NC |
7851 | |
| 7852 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 7853 | abfd, r_symndx); | |
| 7854 | if (isym == NULL) | |
| 7855 | return FALSE; | |
| 7856 | ||
| 7857 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 7858 | if (s == NULL) | |
| 7859 | s = sec; | |
| 7860 | ||
| 7861 | /* Beware of type punned pointers vs strict aliasing | |
| 7862 | rules. */ | |
| 7863 | vpp = &(elf_section_data (s)->local_dynrel); | |
| 7864 | head = (struct elf_dyn_relocs **) vpp; | |
| 7865 | } | |
| 7866 | ||
| 7867 | p = *head; | |
| 7868 | if (p == NULL || p->sec != sec) | |
| 7869 | { | |
| 986f0783 | 7870 | size_t amt = sizeof *p; |
| a06ea964 NC |
7871 | p = ((struct elf_dyn_relocs *) |
| 7872 | bfd_zalloc (htab->root.dynobj, amt)); | |
| 7873 | if (p == NULL) | |
| 7874 | return FALSE; | |
| 7875 | p->next = *head; | |
| 7876 | *head = p; | |
| 7877 | p->sec = sec; | |
| 7878 | } | |
| 7879 | ||
| 7880 | p->count += 1; | |
| 7881 | ||
| 6353d82b JW |
7882 | if (elfNN_aarch64_howto_table[howto_index].pc_relative) |
| 7883 | p->pc_count += 1; | |
| a06ea964 NC |
7884 | } |
| 7885 | break; | |
| 7886 | ||
| 7887 | /* RR: We probably want to keep a consistency check that | |
| 7888 | there are no dangling GOT_PAGE relocs. */ | |
| a6bb11b2 | 7889 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 7bcccb57 | 7890 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: |
| 7018c030 | 7891 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| 7bcccb57 | 7892 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| a2e1db00 | 7893 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 99ad26cb | 7894 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| 7bcccb57 | 7895 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| dc8008f5 | 7896 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 7897 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| f955cccf | 7898 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| 7bcccb57 | 7899 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 7900 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| 7bcccb57 | 7901 | case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC: |
| f955cccf | 7902 | case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12: |
| 1ada945d | 7903 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 0484b454 RL |
7904 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
| 7905 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| a6bb11b2 | 7906 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| 7bcccb57 | 7907 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 7908 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 7ba7cfe4 | 7909 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 7910 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| a6bb11b2 | 7911 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a6bb11b2 | 7912 | case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: |
| 7bcccb57 | 7913 | case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: |
| 043bf05a | 7914 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 3b957e5b RL |
7915 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 7916 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| 73f925cc | 7917 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 7918 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 7919 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
7920 | { |
| 7921 | unsigned got_type; | |
| 7922 | unsigned old_got_type; | |
| 7923 | ||
| a6bb11b2 | 7924 | got_type = aarch64_reloc_got_type (bfd_r_type); |
| a06ea964 NC |
7925 | |
| 7926 | if (h) | |
| 7927 | { | |
| 7928 | h->got.refcount += 1; | |
| cec5225b | 7929 | old_got_type = elf_aarch64_hash_entry (h)->got_type; |
| a06ea964 NC |
7930 | } |
| 7931 | else | |
| 7932 | { | |
| 7933 | struct elf_aarch64_local_symbol *locals; | |
| 7934 | ||
| cec5225b | 7935 | if (!elfNN_aarch64_allocate_local_symbols |
| a06ea964 NC |
7936 | (abfd, symtab_hdr->sh_info)) |
| 7937 | return FALSE; | |
| 7938 | ||
| cec5225b | 7939 | locals = elf_aarch64_locals (abfd); |
| a06ea964 NC |
7940 | BFD_ASSERT (r_symndx < symtab_hdr->sh_info); |
| 7941 | locals[r_symndx].got_refcount += 1; | |
| 7942 | old_got_type = locals[r_symndx].got_type; | |
| 7943 | } | |
| 7944 | ||
| 7945 | /* If a variable is accessed with both general dynamic TLS | |
| 7946 | methods, two slots may be created. */ | |
| 7947 | if (GOT_TLS_GD_ANY_P (old_got_type) && GOT_TLS_GD_ANY_P (got_type)) | |
| 7948 | got_type |= old_got_type; | |
| 7949 | ||
| 7950 | /* We will already have issued an error message if there | |
| 7951 | is a TLS/non-TLS mismatch, based on the symbol type. | |
| 7952 | So just combine any TLS types needed. */ | |
| 7953 | if (old_got_type != GOT_UNKNOWN && old_got_type != GOT_NORMAL | |
| 7954 | && got_type != GOT_NORMAL) | |
| 7955 | got_type |= old_got_type; | |
| 7956 | ||
| 7957 | /* If the symbol is accessed by both IE and GD methods, we | |
| 7958 | are able to relax. Turn off the GD flag, without | |
| 7959 | messing up with any other kind of TLS types that may be | |
| 7960 | involved. */ | |
| 7961 | if ((got_type & GOT_TLS_IE) && GOT_TLS_GD_ANY_P (got_type)) | |
| 7962 | got_type &= ~ (GOT_TLSDESC_GD | GOT_TLS_GD); | |
| 7963 | ||
| 7964 | if (old_got_type != got_type) | |
| 7965 | { | |
| 7966 | if (h != NULL) | |
| cec5225b | 7967 | elf_aarch64_hash_entry (h)->got_type = got_type; |
| a06ea964 NC |
7968 | else |
| 7969 | { | |
| 7970 | struct elf_aarch64_local_symbol *locals; | |
| cec5225b | 7971 | locals = elf_aarch64_locals (abfd); |
| a06ea964 NC |
7972 | BFD_ASSERT (r_symndx < symtab_hdr->sh_info); |
| 7973 | locals[r_symndx].got_type = got_type; | |
| 7974 | } | |
| 7975 | } | |
| 7976 | ||
| cc0efaa8 MS |
7977 | if (htab->root.dynobj == NULL) |
| 7978 | htab->root.dynobj = abfd; | |
| 7979 | if (! aarch64_elf_create_got_section (htab->root.dynobj, info)) | |
| 7980 | return FALSE; | |
| a06ea964 NC |
7981 | break; |
| 7982 | } | |
| 7983 | ||
| a6bb11b2 YZ |
7984 | case BFD_RELOC_AARCH64_CALL26: |
| 7985 | case BFD_RELOC_AARCH64_JUMP26: | |
| a06ea964 NC |
7986 | /* If this is a local symbol then we resolve it |
| 7987 | directly without creating a PLT entry. */ | |
| 7988 | if (h == NULL) | |
| 7989 | continue; | |
| 7990 | ||
| 7991 | h->needs_plt = 1; | |
| 1419bbe5 WN |
7992 | if (h->plt.refcount <= 0) |
| 7993 | h->plt.refcount = 1; | |
| 7994 | else | |
| 7995 | h->plt.refcount += 1; | |
| a06ea964 | 7996 | break; |
| a6bb11b2 YZ |
7997 | |
| 7998 | default: | |
| 7999 | break; | |
| a06ea964 NC |
8000 | } |
| 8001 | } | |
| a6bb11b2 | 8002 | |
| a06ea964 NC |
8003 | return TRUE; |
| 8004 | } | |
| 8005 | ||
| 8006 | /* Treat mapping symbols as special target symbols. */ | |
| 8007 | ||
| 8008 | static bfd_boolean | |
| cec5225b | 8009 | elfNN_aarch64_is_target_special_symbol (bfd *abfd ATTRIBUTE_UNUSED, |
| a06ea964 NC |
8010 | asymbol *sym) |
| 8011 | { | |
| 8012 | return bfd_is_aarch64_special_symbol_name (sym->name, | |
| 8013 | BFD_AARCH64_SPECIAL_SYM_TYPE_ANY); | |
| 8014 | } | |
| 8015 | ||
| e7679060 AM |
8016 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 8017 | function size and set *CODE_OFF to the function's entry point, | |
| 8018 | otherwise return zero. */ | |
| a06ea964 | 8019 | |
| e7679060 AM |
8020 | static bfd_size_type |
| 8021 | elfNN_aarch64_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 8022 | bfd_vma *code_off) | |
| 8023 | { | |
| 8024 | bfd_size_type size; | |
| a06ea964 | 8025 | |
| e7679060 AM |
8026 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
| 8027 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 | |
| 8028 | || sym->section != sec) | |
| 8029 | return 0; | |
| a06ea964 | 8030 | |
| e7679060 AM |
8031 | if (!(sym->flags & BSF_SYNTHETIC)) |
| 8032 | switch (ELF_ST_TYPE (((elf_symbol_type *) sym)->internal_elf_sym.st_info)) | |
| 8033 | { | |
| a06ea964 NC |
8034 | case STT_FUNC: |
| 8035 | case STT_NOTYPE: | |
| a06ea964 | 8036 | break; |
| e7679060 AM |
8037 | default: |
| 8038 | return 0; | |
| 8039 | } | |
| a06ea964 | 8040 | |
| e7679060 AM |
8041 | if ((sym->flags & BSF_LOCAL) |
| 8042 | && bfd_is_aarch64_special_symbol_name (sym->name, | |
| 8043 | BFD_AARCH64_SPECIAL_SYM_TYPE_ANY)) | |
| 8044 | return 0; | |
| a06ea964 | 8045 | |
| e7679060 AM |
8046 | *code_off = sym->value; |
| 8047 | size = 0; | |
| 8048 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 8049 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 8050 | if (size == 0) | |
| 8051 | size = 1; | |
| 8052 | return size; | |
| a06ea964 NC |
8053 | } |
| 8054 | ||
| 8055 | static bfd_boolean | |
| cec5225b | 8056 | elfNN_aarch64_find_inliner_info (bfd *abfd, |
| a06ea964 NC |
8057 | const char **filename_ptr, |
| 8058 | const char **functionname_ptr, | |
| 8059 | unsigned int *line_ptr) | |
| 8060 | { | |
| 8061 | bfd_boolean found; | |
| 8062 | found = _bfd_dwarf2_find_inliner_info | |
| 8063 | (abfd, filename_ptr, | |
| 8064 | functionname_ptr, line_ptr, &elf_tdata (abfd)->dwarf2_find_line_info); | |
| 8065 | return found; | |
| 8066 | } | |
| 8067 | ||
| 8068 | ||
| ed7e9d0b AM |
8069 | static bfd_boolean |
| 8070 | elfNN_aarch64_init_file_header (bfd *abfd, struct bfd_link_info *link_info) | |
| a06ea964 NC |
8071 | { |
| 8072 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
| 8073 | ||
| ed7e9d0b AM |
8074 | if (!_bfd_elf_init_file_header (abfd, link_info)) |
| 8075 | return FALSE; | |
| 8076 | ||
| a06ea964 | 8077 | i_ehdrp = elf_elfheader (abfd); |
| a06ea964 | 8078 | i_ehdrp->e_ident[EI_ABIVERSION] = AARCH64_ELF_ABI_VERSION; |
| ed7e9d0b | 8079 | return TRUE; |
| a06ea964 NC |
8080 | } |
| 8081 | ||
| 8082 | static enum elf_reloc_type_class | |
| cec5225b | 8083 | elfNN_aarch64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
| 7e612e98 AM |
8084 | const asection *rel_sec ATTRIBUTE_UNUSED, |
| 8085 | const Elf_Internal_Rela *rela) | |
| a06ea964 | 8086 | { |
| f2e6a843 SN |
8087 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); |
| 8088 | ||
| 8089 | if (htab->root.dynsym != NULL | |
| 8090 | && htab->root.dynsym->contents != NULL) | |
| 8091 | { | |
| 8092 | /* Check relocation against STT_GNU_IFUNC symbol if there are | |
| 8093 | dynamic symbols. */ | |
| 8094 | bfd *abfd = info->output_bfd; | |
| 8095 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
| 8096 | unsigned long r_symndx = ELFNN_R_SYM (rela->r_info); | |
| 8097 | if (r_symndx != STN_UNDEF) | |
| 8098 | { | |
| 8099 | Elf_Internal_Sym sym; | |
| 8100 | if (!bed->s->swap_symbol_in (abfd, | |
| 8101 | (htab->root.dynsym->contents | |
| 8102 | + r_symndx * bed->s->sizeof_sym), | |
| 8103 | 0, &sym)) | |
| 8104 | { | |
| 8105 | /* xgettext:c-format */ | |
| 871b3ab2 | 8106 | _bfd_error_handler (_("%pB symbol number %lu references" |
| f2e6a843 SN |
8107 | " nonexistent SHT_SYMTAB_SHNDX section"), |
| 8108 | abfd, r_symndx); | |
| 8109 | /* Ideally an error class should be returned here. */ | |
| 8110 | } | |
| 8111 | else if (ELF_ST_TYPE (sym.st_info) == STT_GNU_IFUNC) | |
| 8112 | return reloc_class_ifunc; | |
| 8113 | } | |
| 8114 | } | |
| 8115 | ||
| cec5225b | 8116 | switch ((int) ELFNN_R_TYPE (rela->r_info)) |
| a06ea964 | 8117 | { |
| f2e6a843 SN |
8118 | case AARCH64_R (IRELATIVE): |
| 8119 | return reloc_class_ifunc; | |
| a6bb11b2 | 8120 | case AARCH64_R (RELATIVE): |
| a06ea964 | 8121 | return reloc_class_relative; |
| a6bb11b2 | 8122 | case AARCH64_R (JUMP_SLOT): |
| a06ea964 | 8123 | return reloc_class_plt; |
| a6bb11b2 | 8124 | case AARCH64_R (COPY): |
| a06ea964 NC |
8125 | return reloc_class_copy; |
| 8126 | default: | |
| 8127 | return reloc_class_normal; | |
| 8128 | } | |
| 8129 | } | |
| 8130 | ||
| a06ea964 NC |
8131 | /* Handle an AArch64 specific section when reading an object file. This is |
| 8132 | called when bfd_section_from_shdr finds a section with an unknown | |
| 8133 | type. */ | |
| 8134 | ||
| 8135 | static bfd_boolean | |
| cec5225b | 8136 | elfNN_aarch64_section_from_shdr (bfd *abfd, |
| a06ea964 NC |
8137 | Elf_Internal_Shdr *hdr, |
| 8138 | const char *name, int shindex) | |
| 8139 | { | |
| 8140 | /* There ought to be a place to keep ELF backend specific flags, but | |
| 8141 | at the moment there isn't one. We just keep track of the | |
| 8142 | sections by their name, instead. Fortunately, the ABI gives | |
| 8143 | names for all the AArch64 specific sections, so we will probably get | |
| 8144 | away with this. */ | |
| 8145 | switch (hdr->sh_type) | |
| 8146 | { | |
| 8147 | case SHT_AARCH64_ATTRIBUTES: | |
| 8148 | break; | |
| 8149 | ||
| 8150 | default: | |
| 8151 | return FALSE; | |
| 8152 | } | |
| 8153 | ||
| 8154 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
| 8155 | return FALSE; | |
| 8156 | ||
| 8157 | return TRUE; | |
| 8158 | } | |
| 8159 | ||
| 8160 | /* A structure used to record a list of sections, independently | |
| 8161 | of the next and prev fields in the asection structure. */ | |
| 8162 | typedef struct section_list | |
| 8163 | { | |
| 8164 | asection *sec; | |
| 8165 | struct section_list *next; | |
| 8166 | struct section_list *prev; | |
| 8167 | } | |
| 8168 | section_list; | |
| 8169 | ||
| 8170 | /* Unfortunately we need to keep a list of sections for which | |
| 8171 | an _aarch64_elf_section_data structure has been allocated. This | |
| cec5225b | 8172 | is because it is possible for functions like elfNN_aarch64_write_section |
| a06ea964 NC |
8173 | to be called on a section which has had an elf_data_structure |
| 8174 | allocated for it (and so the used_by_bfd field is valid) but | |
| 8175 | for which the AArch64 extended version of this structure - the | |
| 8176 | _aarch64_elf_section_data structure - has not been allocated. */ | |
| 8177 | static section_list *sections_with_aarch64_elf_section_data = NULL; | |
| 8178 | ||
| 8179 | static void | |
| 8180 | record_section_with_aarch64_elf_section_data (asection *sec) | |
| 8181 | { | |
| 8182 | struct section_list *entry; | |
| 8183 | ||
| 8184 | entry = bfd_malloc (sizeof (*entry)); | |
| 8185 | if (entry == NULL) | |
| 8186 | return; | |
| 8187 | entry->sec = sec; | |
| 8188 | entry->next = sections_with_aarch64_elf_section_data; | |
| 8189 | entry->prev = NULL; | |
| 8190 | if (entry->next != NULL) | |
| 8191 | entry->next->prev = entry; | |
| 8192 | sections_with_aarch64_elf_section_data = entry; | |
| 8193 | } | |
| 8194 | ||
| 8195 | static struct section_list * | |
| 8196 | find_aarch64_elf_section_entry (asection *sec) | |
| 8197 | { | |
| 8198 | struct section_list *entry; | |
| 8199 | static struct section_list *last_entry = NULL; | |
| 8200 | ||
| 8201 | /* This is a short cut for the typical case where the sections are added | |
| 8202 | to the sections_with_aarch64_elf_section_data list in forward order and | |
| 8203 | then looked up here in backwards order. This makes a real difference | |
| 8204 | to the ld-srec/sec64k.exp linker test. */ | |
| 8205 | entry = sections_with_aarch64_elf_section_data; | |
| 8206 | if (last_entry != NULL) | |
| 8207 | { | |
| 8208 | if (last_entry->sec == sec) | |
| 8209 | entry = last_entry; | |
| 8210 | else if (last_entry->next != NULL && last_entry->next->sec == sec) | |
| 8211 | entry = last_entry->next; | |
| 8212 | } | |
| 8213 | ||
| 8214 | for (; entry; entry = entry->next) | |
| 8215 | if (entry->sec == sec) | |
| 8216 | break; | |
| 8217 | ||
| 8218 | if (entry) | |
| 8219 | /* Record the entry prior to this one - it is the entry we are | |
| 8220 | most likely to want to locate next time. Also this way if we | |
| 8221 | have been called from | |
| 8222 | unrecord_section_with_aarch64_elf_section_data () we will not | |
| 8223 | be caching a pointer that is about to be freed. */ | |
| 8224 | last_entry = entry->prev; | |
| 8225 | ||
| 8226 | return entry; | |
| 8227 | } | |
| 8228 | ||
| 8229 | static void | |
| 8230 | unrecord_section_with_aarch64_elf_section_data (asection *sec) | |
| 8231 | { | |
| 8232 | struct section_list *entry; | |
| 8233 | ||
| 8234 | entry = find_aarch64_elf_section_entry (sec); | |
| 8235 | ||
| 8236 | if (entry) | |
| 8237 | { | |
| 8238 | if (entry->prev != NULL) | |
| 8239 | entry->prev->next = entry->next; | |
| 8240 | if (entry->next != NULL) | |
| 8241 | entry->next->prev = entry->prev; | |
| 8242 | if (entry == sections_with_aarch64_elf_section_data) | |
| 8243 | sections_with_aarch64_elf_section_data = entry->next; | |
| 8244 | free (entry); | |
| 8245 | } | |
| 8246 | } | |
| 8247 | ||
| 8248 | ||
| 8249 | typedef struct | |
| 8250 | { | |
| 8251 | void *finfo; | |
| 8252 | struct bfd_link_info *info; | |
| 8253 | asection *sec; | |
| 8254 | int sec_shndx; | |
| 8255 | int (*func) (void *, const char *, Elf_Internal_Sym *, | |
| 8256 | asection *, struct elf_link_hash_entry *); | |
| 8257 | } output_arch_syminfo; | |
| 8258 | ||
| 8259 | enum map_symbol_type | |
| 8260 | { | |
| 8261 | AARCH64_MAP_INSN, | |
| 8262 | AARCH64_MAP_DATA | |
| 8263 | }; | |
| 8264 | ||
| 8265 | ||
| 8266 | /* Output a single mapping symbol. */ | |
| 8267 | ||
| 8268 | static bfd_boolean | |
| cec5225b | 8269 | elfNN_aarch64_output_map_sym (output_arch_syminfo *osi, |
| a06ea964 NC |
8270 | enum map_symbol_type type, bfd_vma offset) |
| 8271 | { | |
| 8272 | static const char *names[2] = { "$x", "$d" }; | |
| 8273 | Elf_Internal_Sym sym; | |
| 8274 | ||
| 8275 | sym.st_value = (osi->sec->output_section->vma | |
| 8276 | + osi->sec->output_offset + offset); | |
| 8277 | sym.st_size = 0; | |
| 8278 | sym.st_other = 0; | |
| 8279 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE); | |
| 8280 | sym.st_shndx = osi->sec_shndx; | |
| 8281 | return osi->func (osi->finfo, names[type], &sym, osi->sec, NULL) == 1; | |
| 8282 | } | |
| 8283 | ||
| a06ea964 NC |
8284 | /* Output a single local symbol for a generated stub. */ |
| 8285 | ||
| 8286 | static bfd_boolean | |
| cec5225b | 8287 | elfNN_aarch64_output_stub_sym (output_arch_syminfo *osi, const char *name, |
| a06ea964 NC |
8288 | bfd_vma offset, bfd_vma size) |
| 8289 | { | |
| 8290 | Elf_Internal_Sym sym; | |
| 8291 | ||
| 8292 | sym.st_value = (osi->sec->output_section->vma | |
| 8293 | + osi->sec->output_offset + offset); | |
| 8294 | sym.st_size = size; | |
| 8295 | sym.st_other = 0; | |
| 8296 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FUNC); | |
| 8297 | sym.st_shndx = osi->sec_shndx; | |
| 8298 | return osi->func (osi->finfo, name, &sym, osi->sec, NULL) == 1; | |
| 8299 | } | |
| 8300 | ||
| 8301 | static bfd_boolean | |
| 8302 | aarch64_map_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) | |
| 8303 | { | |
| cec5225b | 8304 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| a06ea964 NC |
8305 | asection *stub_sec; |
| 8306 | bfd_vma addr; | |
| 8307 | char *stub_name; | |
| 8308 | output_arch_syminfo *osi; | |
| 8309 | ||
| 8310 | /* Massage our args to the form they really have. */ | |
| cec5225b | 8311 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; |
| a06ea964 NC |
8312 | osi = (output_arch_syminfo *) in_arg; |
| 8313 | ||
| 8314 | stub_sec = stub_entry->stub_sec; | |
| 8315 | ||
| 8316 | /* Ensure this stub is attached to the current section being | |
| 8317 | processed. */ | |
| 8318 | if (stub_sec != osi->sec) | |
| 8319 | return TRUE; | |
| 8320 | ||
| 8321 | addr = (bfd_vma) stub_entry->stub_offset; | |
| 8322 | ||
| 8323 | stub_name = stub_entry->output_name; | |
| 8324 | ||
| 8325 | switch (stub_entry->stub_type) | |
| 8326 | { | |
| 8327 | case aarch64_stub_adrp_branch: | |
| cec5225b | 8328 | if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr, |
| a06ea964 NC |
8329 | sizeof (aarch64_adrp_branch_stub))) |
| 8330 | return FALSE; | |
| cec5225b | 8331 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) |
| a06ea964 NC |
8332 | return FALSE; |
| 8333 | break; | |
| 8334 | case aarch64_stub_long_branch: | |
| cec5225b | 8335 | if (!elfNN_aarch64_output_stub_sym |
| a06ea964 NC |
8336 | (osi, stub_name, addr, sizeof (aarch64_long_branch_stub))) |
| 8337 | return FALSE; | |
| cec5225b | 8338 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) |
| a06ea964 | 8339 | return FALSE; |
| cec5225b | 8340 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_DATA, addr + 16)) |
| a06ea964 NC |
8341 | return FALSE; |
| 8342 | break; | |
| 68fcca92 JW |
8343 | case aarch64_stub_erratum_835769_veneer: |
| 8344 | if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr, | |
| 8345 | sizeof (aarch64_erratum_835769_stub))) | |
| 8346 | return FALSE; | |
| 8347 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) | |
| 8348 | return FALSE; | |
| 8349 | break; | |
| 4106101c MS |
8350 | case aarch64_stub_erratum_843419_veneer: |
| 8351 | if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr, | |
| 8352 | sizeof (aarch64_erratum_843419_stub))) | |
| 8353 | return FALSE; | |
| 8354 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) | |
| 8355 | return FALSE; | |
| 8356 | break; | |
| 9fca35fc TC |
8357 | case aarch64_stub_none: |
| 8358 | break; | |
| 4106101c | 8359 | |
| a06ea964 | 8360 | default: |
| 8e2fe09f | 8361 | abort (); |
| a06ea964 NC |
8362 | } |
| 8363 | ||
| 8364 | return TRUE; | |
| 8365 | } | |
| 8366 | ||
| 8367 | /* Output mapping symbols for linker generated sections. */ | |
| 8368 | ||
| 8369 | static bfd_boolean | |
| cec5225b | 8370 | elfNN_aarch64_output_arch_local_syms (bfd *output_bfd, |
| a06ea964 NC |
8371 | struct bfd_link_info *info, |
| 8372 | void *finfo, | |
| 8373 | int (*func) (void *, const char *, | |
| 8374 | Elf_Internal_Sym *, | |
| 8375 | asection *, | |
| 8376 | struct elf_link_hash_entry | |
| 8377 | *)) | |
| 8378 | { | |
| 8379 | output_arch_syminfo osi; | |
| cec5225b | 8380 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 | 8381 | |
| cec5225b | 8382 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
8383 | |
| 8384 | osi.finfo = finfo; | |
| 8385 | osi.info = info; | |
| 8386 | osi.func = func; | |
| 8387 | ||
| 8388 | /* Long calls stubs. */ | |
| 8389 | if (htab->stub_bfd && htab->stub_bfd->sections) | |
| 8390 | { | |
| 8391 | asection *stub_sec; | |
| 8392 | ||
| 8393 | for (stub_sec = htab->stub_bfd->sections; | |
| 8394 | stub_sec != NULL; stub_sec = stub_sec->next) | |
| 8395 | { | |
| 8396 | /* Ignore non-stub sections. */ | |
| 8397 | if (!strstr (stub_sec->name, STUB_SUFFIX)) | |
| 8398 | continue; | |
| 8399 | ||
| 8400 | osi.sec = stub_sec; | |
| 8401 | ||
| 8402 | osi.sec_shndx = _bfd_elf_section_from_bfd_section | |
| 8403 | (output_bfd, osi.sec->output_section); | |
| 8404 | ||
| 61865519 MS |
8405 | /* The first instruction in a stub is always a branch. */ |
| 8406 | if (!elfNN_aarch64_output_map_sym (&osi, AARCH64_MAP_INSN, 0)) | |
| 8407 | return FALSE; | |
| 8408 | ||
| a06ea964 NC |
8409 | bfd_hash_traverse (&htab->stub_hash_table, aarch64_map_one_stub, |
| 8410 | &osi); | |
| 8411 | } | |
| 8412 | } | |
| 8413 | ||
| 8414 | /* Finally, output mapping symbols for the PLT. */ | |
| 8415 | if (!htab->root.splt || htab->root.splt->size == 0) | |
| 8416 | return TRUE; | |
| 8417 | ||
| a06ea964 NC |
8418 | osi.sec_shndx = _bfd_elf_section_from_bfd_section |
| 8419 | (output_bfd, htab->root.splt->output_section); | |
| 8420 | osi.sec = htab->root.splt; | |
| 8421 | ||
| 73524045 | 8422 | elfNN_aarch64_output_map_sym (&osi, AARCH64_MAP_INSN, 0); |
| a06ea964 NC |
8423 | |
| 8424 | return TRUE; | |
| 8425 | ||
| 8426 | } | |
| 8427 | ||
| 8428 | /* Allocate target specific section data. */ | |
| 8429 | ||
| 8430 | static bfd_boolean | |
| cec5225b | 8431 | elfNN_aarch64_new_section_hook (bfd *abfd, asection *sec) |
| a06ea964 NC |
8432 | { |
| 8433 | if (!sec->used_by_bfd) | |
| 8434 | { | |
| 8435 | _aarch64_elf_section_data *sdata; | |
| 986f0783 | 8436 | size_t amt = sizeof (*sdata); |
| a06ea964 NC |
8437 | |
| 8438 | sdata = bfd_zalloc (abfd, amt); | |
| 8439 | if (sdata == NULL) | |
| 8440 | return FALSE; | |
| 8441 | sec->used_by_bfd = sdata; | |
| 8442 | } | |
| 8443 | ||
| 8444 | record_section_with_aarch64_elf_section_data (sec); | |
| 8445 | ||
| 8446 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 8447 | } | |
| 8448 | ||
| 8449 | ||
| 8450 | static void | |
| 8451 | unrecord_section_via_map_over_sections (bfd *abfd ATTRIBUTE_UNUSED, | |
| 8452 | asection *sec, | |
| 8453 | void *ignore ATTRIBUTE_UNUSED) | |
| 8454 | { | |
| 8455 | unrecord_section_with_aarch64_elf_section_data (sec); | |
| 8456 | } | |
| 8457 | ||
| 8458 | static bfd_boolean | |
| cec5225b | 8459 | elfNN_aarch64_close_and_cleanup (bfd *abfd) |
| a06ea964 NC |
8460 | { |
| 8461 | if (abfd->sections) | |
| 8462 | bfd_map_over_sections (abfd, | |
| 8463 | unrecord_section_via_map_over_sections, NULL); | |
| 8464 | ||
| 8465 | return _bfd_elf_close_and_cleanup (abfd); | |
| 8466 | } | |
| 8467 | ||
| 8468 | static bfd_boolean | |
| cec5225b | 8469 | elfNN_aarch64_bfd_free_cached_info (bfd *abfd) |
| a06ea964 NC |
8470 | { |
| 8471 | if (abfd->sections) | |
| 8472 | bfd_map_over_sections (abfd, | |
| 8473 | unrecord_section_via_map_over_sections, NULL); | |
| 8474 | ||
| 8475 | return _bfd_free_cached_info (abfd); | |
| 8476 | } | |
| 8477 | ||
| a06ea964 NC |
8478 | /* Create dynamic sections. This is different from the ARM backend in that |
| 8479 | the got, plt, gotplt and their relocation sections are all created in the | |
| 8480 | standard part of the bfd elf backend. */ | |
| 8481 | ||
| 8482 | static bfd_boolean | |
| cec5225b | 8483 | elfNN_aarch64_create_dynamic_sections (bfd *dynobj, |
| a06ea964 NC |
8484 | struct bfd_link_info *info) |
| 8485 | { | |
| cc0efaa8 MS |
8486 | /* We need to create .got section. */ |
| 8487 | if (!aarch64_elf_create_got_section (dynobj, info)) | |
| 8488 | return FALSE; | |
| a06ea964 | 8489 | |
| 9d19e4fd | 8490 | return _bfd_elf_create_dynamic_sections (dynobj, info); |
| a06ea964 NC |
8491 | } |
| 8492 | ||
| 8493 | ||
| 8494 | /* Allocate space in .plt, .got and associated reloc sections for | |
| 8495 | dynamic relocs. */ | |
| 8496 | ||
| 8497 | static bfd_boolean | |
| cec5225b | 8498 | elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| a06ea964 NC |
8499 | { |
| 8500 | struct bfd_link_info *info; | |
| cec5225b YZ |
8501 | struct elf_aarch64_link_hash_table *htab; |
| 8502 | struct elf_aarch64_link_hash_entry *eh; | |
| a06ea964 NC |
8503 | struct elf_dyn_relocs *p; |
| 8504 | ||
| 8505 | /* An example of a bfd_link_hash_indirect symbol is versioned | |
| 8506 | symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect) | |
| 8507 | -> __gxx_personality_v0(bfd_link_hash_defined) | |
| 8508 | ||
| 8509 | There is no need to process bfd_link_hash_indirect symbols here | |
| 8510 | because we will also be presented with the concrete instance of | |
| cec5225b | 8511 | the symbol and elfNN_aarch64_copy_indirect_symbol () will have been |
| a06ea964 | 8512 | called to copy all relevant data from the generic to the concrete |
| 2d0ca824 | 8513 | symbol instance. */ |
| a06ea964 NC |
8514 | if (h->root.type == bfd_link_hash_indirect) |
| 8515 | return TRUE; | |
| 8516 | ||
| 8517 | if (h->root.type == bfd_link_hash_warning) | |
| 8518 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 8519 | ||
| 8520 | info = (struct bfd_link_info *) inf; | |
| cec5225b | 8521 | htab = elf_aarch64_hash_table (info); |
| a06ea964 | 8522 | |
| 1419bbe5 WN |
8523 | /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it |
| 8524 | here if it is defined and referenced in a non-shared object. */ | |
| 8525 | if (h->type == STT_GNU_IFUNC | |
| 8526 | && h->def_regular) | |
| 8527 | return TRUE; | |
| 8528 | else if (htab->root.dynamic_sections_created && h->plt.refcount > 0) | |
| a06ea964 NC |
8529 | { |
| 8530 | /* Make sure this symbol is output as a dynamic symbol. | |
| 07d6d2b8 | 8531 | Undefined weak syms won't yet be marked as dynamic. */ |
| ff07562f JW |
8532 | if (h->dynindx == -1 && !h->forced_local |
| 8533 | && h->root.type == bfd_link_hash_undefweak) | |
| a06ea964 NC |
8534 | { |
| 8535 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 8536 | return FALSE; | |
| 8537 | } | |
| 8538 | ||
| 0e1862bb | 8539 | if (bfd_link_pic (info) || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) |
| a06ea964 NC |
8540 | { |
| 8541 | asection *s = htab->root.splt; | |
| 8542 | ||
| 8543 | /* If this is the first .plt entry, make room for the special | |
| 8544 | first entry. */ | |
| 8545 | if (s->size == 0) | |
| 8546 | s->size += htab->plt_header_size; | |
| 8547 | ||
| 8548 | h->plt.offset = s->size; | |
| 8549 | ||
| 8550 | /* If this symbol is not defined in a regular file, and we are | |
| 8551 | not generating a shared library, then set the symbol to this | |
| 8552 | location in the .plt. This is required to make function | |
| 8553 | pointers compare as equal between the normal executable and | |
| 8554 | the shared library. */ | |
| 0e1862bb | 8555 | if (!bfd_link_pic (info) && !h->def_regular) |
| a06ea964 NC |
8556 | { |
| 8557 | h->root.u.def.section = s; | |
| 8558 | h->root.u.def.value = h->plt.offset; | |
| 8559 | } | |
| 8560 | ||
| 8561 | /* Make room for this entry. For now we only create the | |
| 8562 | small model PLT entries. We later need to find a way | |
| 8563 | of relaxing into these from the large model PLT entries. */ | |
| 37c18eed | 8564 | s->size += htab->plt_entry_size; |
| a06ea964 NC |
8565 | |
| 8566 | /* We also need to make an entry in the .got.plt section, which | |
| 8567 | will be placed in the .got section by the linker script. */ | |
| 8568 | htab->root.sgotplt->size += GOT_ENTRY_SIZE; | |
| 8569 | ||
| 8570 | /* We also need to make an entry in the .rela.plt section. */ | |
| 8571 | htab->root.srelplt->size += RELOC_SIZE (htab); | |
| 8572 | ||
| 8573 | /* We need to ensure that all GOT entries that serve the PLT | |
| 8574 | are consecutive with the special GOT slots [0] [1] and | |
| 8575 | [2]. Any addtional relocations, such as | |
| 8576 | R_AARCH64_TLSDESC, must be placed after the PLT related | |
| 8577 | entries. We abuse the reloc_count such that during | |
| 8578 | sizing we adjust reloc_count to indicate the number of | |
| 8579 | PLT related reserved entries. In subsequent phases when | |
| 8580 | filling in the contents of the reloc entries, PLT related | |
| 8581 | entries are placed by computing their PLT index (0 | |
| 8582 | .. reloc_count). While other none PLT relocs are placed | |
| 8583 | at the slot indicated by reloc_count and reloc_count is | |
| 8584 | updated. */ | |
| 8585 | ||
| 8586 | htab->root.srelplt->reloc_count++; | |
| 823710d5 SN |
8587 | |
| 8588 | /* Mark the DSO in case R_<CLS>_JUMP_SLOT relocs against | |
| 8589 | variant PCS symbols are present. */ | |
| 8590 | if (h->other & STO_AARCH64_VARIANT_PCS) | |
| 8591 | htab->variant_pcs = 1; | |
| 8592 | ||
| a06ea964 NC |
8593 | } |
| 8594 | else | |
| 8595 | { | |
| 8596 | h->plt.offset = (bfd_vma) - 1; | |
| 8597 | h->needs_plt = 0; | |
| 8598 | } | |
| 8599 | } | |
| 8600 | else | |
| 8601 | { | |
| 8602 | h->plt.offset = (bfd_vma) - 1; | |
| 8603 | h->needs_plt = 0; | |
| 8604 | } | |
| 8605 | ||
| cec5225b | 8606 | eh = (struct elf_aarch64_link_hash_entry *) h; |
| a06ea964 NC |
8607 | eh->tlsdesc_got_jump_table_offset = (bfd_vma) - 1; |
| 8608 | ||
| 8609 | if (h->got.refcount > 0) | |
| 8610 | { | |
| 8611 | bfd_boolean dyn; | |
| cec5225b | 8612 | unsigned got_type = elf_aarch64_hash_entry (h)->got_type; |
| a06ea964 NC |
8613 | |
| 8614 | h->got.offset = (bfd_vma) - 1; | |
| 8615 | ||
| 8616 | dyn = htab->root.dynamic_sections_created; | |
| 8617 | ||
| 8618 | /* Make sure this symbol is output as a dynamic symbol. | |
| 07d6d2b8 | 8619 | Undefined weak syms won't yet be marked as dynamic. */ |
| ff07562f JW |
8620 | if (dyn && h->dynindx == -1 && !h->forced_local |
| 8621 | && h->root.type == bfd_link_hash_undefweak) | |
| a06ea964 NC |
8622 | { |
| 8623 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 8624 | return FALSE; | |
| 8625 | } | |
| 8626 | ||
| 8627 | if (got_type == GOT_UNKNOWN) | |
| 8628 | { | |
| 8629 | } | |
| 8630 | else if (got_type == GOT_NORMAL) | |
| 8631 | { | |
| 8632 | h->got.offset = htab->root.sgot->size; | |
| 8633 | htab->root.sgot->size += GOT_ENTRY_SIZE; | |
| 8634 | if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 8635 | || h->root.type != bfd_link_hash_undefweak) | |
| 0e1862bb | 8636 | && (bfd_link_pic (info) |
| a377ae2a SN |
8637 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) |
| 8638 | /* Undefined weak symbol in static PIE resolves to 0 without | |
| 8639 | any dynamic relocations. */ | |
| 8640 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
| a06ea964 NC |
8641 | { |
| 8642 | htab->root.srelgot->size += RELOC_SIZE (htab); | |
| 8643 | } | |
| 8644 | } | |
| 8645 | else | |
| 8646 | { | |
| 8647 | int indx; | |
| 8648 | if (got_type & GOT_TLSDESC_GD) | |
| 8649 | { | |
| 8650 | eh->tlsdesc_got_jump_table_offset = | |
| 8651 | (htab->root.sgotplt->size | |
| 8652 | - aarch64_compute_jump_table_size (htab)); | |
| 8653 | htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2; | |
| 8654 | h->got.offset = (bfd_vma) - 2; | |
| 8655 | } | |
| 8656 | ||
| 8657 | if (got_type & GOT_TLS_GD) | |
| 8658 | { | |
| 8659 | h->got.offset = htab->root.sgot->size; | |
| 8660 | htab->root.sgot->size += GOT_ENTRY_SIZE * 2; | |
| 8661 | } | |
| 8662 | ||
| 8663 | if (got_type & GOT_TLS_IE) | |
| 8664 | { | |
| 8665 | h->got.offset = htab->root.sgot->size; | |
| 8666 | htab->root.sgot->size += GOT_ENTRY_SIZE; | |
| 8667 | } | |
| 8668 | ||
| 8669 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
| 8670 | if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 8671 | || h->root.type != bfd_link_hash_undefweak) | |
| 6dda7875 | 8672 | && (!bfd_link_executable (info) |
| a06ea964 NC |
8673 | || indx != 0 |
| 8674 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) | |
| 8675 | { | |
| 8676 | if (got_type & GOT_TLSDESC_GD) | |
| 8677 | { | |
| 8678 | htab->root.srelplt->size += RELOC_SIZE (htab); | |
| 8679 | /* Note reloc_count not incremented here! We have | |
| 8680 | already adjusted reloc_count for this relocation | |
| 8681 | type. */ | |
| 8682 | ||
| 8683 | /* TLSDESC PLT is now needed, but not yet determined. */ | |
| 8684 | htab->tlsdesc_plt = (bfd_vma) - 1; | |
| 8685 | } | |
| 8686 | ||
| 8687 | if (got_type & GOT_TLS_GD) | |
| 8688 | htab->root.srelgot->size += RELOC_SIZE (htab) * 2; | |
| 8689 | ||
| 8690 | if (got_type & GOT_TLS_IE) | |
| 8691 | htab->root.srelgot->size += RELOC_SIZE (htab); | |
| 8692 | } | |
| 8693 | } | |
| 8694 | } | |
| 8695 | else | |
| 8696 | { | |
| 8697 | h->got.offset = (bfd_vma) - 1; | |
| 8698 | } | |
| 8699 | ||
| 8700 | if (eh->dyn_relocs == NULL) | |
| 8701 | return TRUE; | |
| 8702 | ||
| 8703 | /* In the shared -Bsymbolic case, discard space allocated for | |
| 8704 | dynamic pc-relative relocs against symbols which turn out to be | |
| 8705 | defined in regular objects. For the normal shared case, discard | |
| 8706 | space for pc-relative relocs that have become local due to symbol | |
| 8707 | visibility changes. */ | |
| 8708 | ||
| 0e1862bb | 8709 | if (bfd_link_pic (info)) |
| a06ea964 NC |
8710 | { |
| 8711 | /* Relocs that use pc_count are those that appear on a call | |
| 07d6d2b8 AM |
8712 | insn, or certain REL relocs that can generated via assembly. |
| 8713 | We want calls to protected symbols to resolve directly to the | |
| 8714 | function rather than going via the plt. If people want | |
| 8715 | function pointer comparisons to work as expected then they | |
| 8716 | should avoid writing weird assembly. */ | |
| a06ea964 NC |
8717 | if (SYMBOL_CALLS_LOCAL (info, h)) |
| 8718 | { | |
| 8719 | struct elf_dyn_relocs **pp; | |
| 8720 | ||
| 8721 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL;) | |
| 8722 | { | |
| 8723 | p->count -= p->pc_count; | |
| 8724 | p->pc_count = 0; | |
| 8725 | if (p->count == 0) | |
| 8726 | *pp = p->next; | |
| 8727 | else | |
| 8728 | pp = &p->next; | |
| 8729 | } | |
| 8730 | } | |
| 8731 | ||
| 8732 | /* Also discard relocs on undefined weak syms with non-default | |
| 07d6d2b8 | 8733 | visibility. */ |
| a06ea964 NC |
8734 | if (eh->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak) |
| 8735 | { | |
| ddb7fd0f L |
8736 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
| 8737 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
| a06ea964 NC |
8738 | eh->dyn_relocs = NULL; |
| 8739 | ||
| 8740 | /* Make sure undefined weak symbols are output as a dynamic | |
| 8741 | symbol in PIEs. */ | |
| 8742 | else if (h->dynindx == -1 | |
| 8743 | && !h->forced_local | |
| ff07562f | 8744 | && h->root.type == bfd_link_hash_undefweak |
| a06ea964 NC |
8745 | && !bfd_elf_link_record_dynamic_symbol (info, h)) |
| 8746 | return FALSE; | |
| 8747 | } | |
| 8748 | ||
| 8749 | } | |
| 8750 | else if (ELIMINATE_COPY_RELOCS) | |
| 8751 | { | |
| 8752 | /* For the non-shared case, discard space for relocs against | |
| 07d6d2b8 AM |
8753 | symbols which turn out to need copy relocs or are not |
| 8754 | dynamic. */ | |
| a06ea964 NC |
8755 | |
| 8756 | if (!h->non_got_ref | |
| 8757 | && ((h->def_dynamic | |
| 8758 | && !h->def_regular) | |
| 8759 | || (htab->root.dynamic_sections_created | |
| 8760 | && (h->root.type == bfd_link_hash_undefweak | |
| 8761 | || h->root.type == bfd_link_hash_undefined)))) | |
| 8762 | { | |
| 8763 | /* Make sure this symbol is output as a dynamic symbol. | |
| 8764 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 8765 | if (h->dynindx == -1 | |
| 8766 | && !h->forced_local | |
| ff07562f | 8767 | && h->root.type == bfd_link_hash_undefweak |
| a06ea964 NC |
8768 | && !bfd_elf_link_record_dynamic_symbol (info, h)) |
| 8769 | return FALSE; | |
| 8770 | ||
| 8771 | /* If that succeeded, we know we'll be keeping all the | |
| 8772 | relocs. */ | |
| 8773 | if (h->dynindx != -1) | |
| 8774 | goto keep; | |
| 8775 | } | |
| 8776 | ||
| 8777 | eh->dyn_relocs = NULL; | |
| 8778 | ||
| 8779 | keep:; | |
| 8780 | } | |
| 8781 | ||
| 8782 | /* Finally, allocate space. */ | |
| 8783 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 8784 | { | |
| 8785 | asection *sreloc; | |
| 8786 | ||
| 8787 | sreloc = elf_section_data (p->sec)->sreloc; | |
| 8788 | ||
| 8789 | BFD_ASSERT (sreloc != NULL); | |
| 8790 | ||
| 8791 | sreloc->size += p->count * RELOC_SIZE (htab); | |
| 8792 | } | |
| 8793 | ||
| 8794 | return TRUE; | |
| 8795 | } | |
| 8796 | ||
| 1419bbe5 WN |
8797 | /* Allocate space in .plt, .got and associated reloc sections for |
| 8798 | ifunc dynamic relocs. */ | |
| 8799 | ||
| 8800 | static bfd_boolean | |
| 8801 | elfNN_aarch64_allocate_ifunc_dynrelocs (struct elf_link_hash_entry *h, | |
| 8802 | void *inf) | |
| 8803 | { | |
| 8804 | struct bfd_link_info *info; | |
| 8805 | struct elf_aarch64_link_hash_table *htab; | |
| 8806 | struct elf_aarch64_link_hash_entry *eh; | |
| 8807 | ||
| 8808 | /* An example of a bfd_link_hash_indirect symbol is versioned | |
| 8809 | symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect) | |
| 8810 | -> __gxx_personality_v0(bfd_link_hash_defined) | |
| 8811 | ||
| 8812 | There is no need to process bfd_link_hash_indirect symbols here | |
| 8813 | because we will also be presented with the concrete instance of | |
| 8814 | the symbol and elfNN_aarch64_copy_indirect_symbol () will have been | |
| 8815 | called to copy all relevant data from the generic to the concrete | |
| 2d0ca824 | 8816 | symbol instance. */ |
| 1419bbe5 WN |
8817 | if (h->root.type == bfd_link_hash_indirect) |
| 8818 | return TRUE; | |
| 8819 | ||
| 8820 | if (h->root.type == bfd_link_hash_warning) | |
| 8821 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 8822 | ||
| 8823 | info = (struct bfd_link_info *) inf; | |
| 8824 | htab = elf_aarch64_hash_table (info); | |
| 8825 | ||
| 8826 | eh = (struct elf_aarch64_link_hash_entry *) h; | |
| 8827 | ||
| 8828 | /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it | |
| 8829 | here if it is defined and referenced in a non-shared object. */ | |
| 8830 | if (h->type == STT_GNU_IFUNC | |
| 8831 | && h->def_regular) | |
| 8832 | return _bfd_elf_allocate_ifunc_dyn_relocs (info, h, | |
| 8833 | &eh->dyn_relocs, | |
| 2df3368d | 8834 | NULL, |
| 1419bbe5 WN |
8835 | htab->plt_entry_size, |
| 8836 | htab->plt_header_size, | |
| 233cc9c1 L |
8837 | GOT_ENTRY_SIZE, |
| 8838 | FALSE); | |
| 1419bbe5 WN |
8839 | return TRUE; |
| 8840 | } | |
| 8841 | ||
| 1419bbe5 WN |
8842 | /* Allocate space in .plt, .got and associated reloc sections for |
| 8843 | local ifunc dynamic relocs. */ | |
| 8844 | ||
| 8845 | static bfd_boolean | |
| 8846 | elfNN_aarch64_allocate_local_ifunc_dynrelocs (void **slot, void *inf) | |
| 8847 | { | |
| 8848 | struct elf_link_hash_entry *h | |
| 8849 | = (struct elf_link_hash_entry *) *slot; | |
| 8850 | ||
| 8851 | if (h->type != STT_GNU_IFUNC | |
| 8852 | || !h->def_regular | |
| 8853 | || !h->ref_regular | |
| 8854 | || !h->forced_local | |
| 8855 | || h->root.type != bfd_link_hash_defined) | |
| 8856 | abort (); | |
| 8857 | ||
| 8858 | return elfNN_aarch64_allocate_ifunc_dynrelocs (h, inf); | |
| 8859 | } | |
| a06ea964 | 8860 | |
| 63c1f59d AM |
8861 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
| 8862 | read-only sections. */ | |
| c2170589 JW |
8863 | |
| 8864 | static bfd_boolean | |
| 63c1f59d | 8865 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
| c2170589 | 8866 | { |
| 63c1f59d | 8867 | asection *sec; |
| c2170589 | 8868 | |
| 63c1f59d AM |
8869 | if (h->root.type == bfd_link_hash_indirect) |
| 8870 | return TRUE; | |
| c2170589 | 8871 | |
| 63c1f59d AM |
8872 | sec = readonly_dynrelocs (h); |
| 8873 | if (sec != NULL) | |
| 8874 | { | |
| 8875 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; | |
| c2170589 | 8876 | |
| 63c1f59d AM |
8877 | info->flags |= DF_TEXTREL; |
| 8878 | info->callbacks->minfo | |
| c1c8c1ef | 8879 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
| 63c1f59d | 8880 | sec->owner, h->root.root.string, sec); |
| c2170589 | 8881 | |
| 63c1f59d AM |
8882 | /* Not an error, just cut short the traversal. */ |
| 8883 | return FALSE; | |
| c2170589 JW |
8884 | } |
| 8885 | return TRUE; | |
| 8886 | } | |
| 8887 | ||
| a06ea964 NC |
8888 | /* This is the most important function of all . Innocuosly named |
| 8889 | though ! */ | |
| 2d0ca824 | 8890 | |
| a06ea964 | 8891 | static bfd_boolean |
| cec5225b | 8892 | elfNN_aarch64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
| a06ea964 NC |
8893 | struct bfd_link_info *info) |
| 8894 | { | |
| cec5225b | 8895 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 NC |
8896 | bfd *dynobj; |
| 8897 | asection *s; | |
| 8898 | bfd_boolean relocs; | |
| 8899 | bfd *ibfd; | |
| 8900 | ||
| cec5225b | 8901 | htab = elf_aarch64_hash_table ((info)); |
| a06ea964 NC |
8902 | dynobj = htab->root.dynobj; |
| 8903 | ||
| 8904 | BFD_ASSERT (dynobj != NULL); | |
| 8905 | ||
| 8906 | if (htab->root.dynamic_sections_created) | |
| 8907 | { | |
| 9b8b325a | 8908 | if (bfd_link_executable (info) && !info->nointerp) |
| a06ea964 NC |
8909 | { |
| 8910 | s = bfd_get_linker_section (dynobj, ".interp"); | |
| 8911 | if (s == NULL) | |
| 8912 | abort (); | |
| 8913 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
| 8914 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
| 8915 | } | |
| 8916 | } | |
| 8917 | ||
| 8918 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 8919 | relocs. */ | |
| c72f2fb2 | 8920 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| a06ea964 NC |
8921 | { |
| 8922 | struct elf_aarch64_local_symbol *locals = NULL; | |
| 8923 | Elf_Internal_Shdr *symtab_hdr; | |
| 8924 | asection *srel; | |
| 8925 | unsigned int i; | |
| 8926 | ||
| 8927 | if (!is_aarch64_elf (ibfd)) | |
| 8928 | continue; | |
| 8929 | ||
| 8930 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 8931 | { | |
| 8932 | struct elf_dyn_relocs *p; | |
| 8933 | ||
| 8934 | for (p = (struct elf_dyn_relocs *) | |
| 8935 | (elf_section_data (s)->local_dynrel); p != NULL; p = p->next) | |
| 8936 | { | |
| 8937 | if (!bfd_is_abs_section (p->sec) | |
| 8938 | && bfd_is_abs_section (p->sec->output_section)) | |
| 8939 | { | |
| 8940 | /* Input section has been discarded, either because | |
| 8941 | it is a copy of a linkonce section or due to | |
| 8942 | linker script /DISCARD/, so we'll be discarding | |
| 8943 | the relocs too. */ | |
| 8944 | } | |
| 8945 | else if (p->count != 0) | |
| 8946 | { | |
| 8947 | srel = elf_section_data (p->sec)->sreloc; | |
| 8948 | srel->size += p->count * RELOC_SIZE (htab); | |
| 8949 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
| 8950 | info->flags |= DF_TEXTREL; | |
| 8951 | } | |
| 8952 | } | |
| 8953 | } | |
| 8954 | ||
| cec5225b | 8955 | locals = elf_aarch64_locals (ibfd); |
| a06ea964 NC |
8956 | if (!locals) |
| 8957 | continue; | |
| 8958 | ||
| 8959 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8960 | srel = htab->root.srelgot; | |
| 8961 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
| 8962 | { | |
| 8963 | locals[i].got_offset = (bfd_vma) - 1; | |
| 8964 | locals[i].tlsdesc_got_jump_table_offset = (bfd_vma) - 1; | |
| 8965 | if (locals[i].got_refcount > 0) | |
| 8966 | { | |
| 8967 | unsigned got_type = locals[i].got_type; | |
| 8968 | if (got_type & GOT_TLSDESC_GD) | |
| 8969 | { | |
| 8970 | locals[i].tlsdesc_got_jump_table_offset = | |
| 8971 | (htab->root.sgotplt->size | |
| 8972 | - aarch64_compute_jump_table_size (htab)); | |
| 8973 | htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2; | |
| 8974 | locals[i].got_offset = (bfd_vma) - 2; | |
| 8975 | } | |
| 8976 | ||
| 8977 | if (got_type & GOT_TLS_GD) | |
| 8978 | { | |
| 8979 | locals[i].got_offset = htab->root.sgot->size; | |
| 8980 | htab->root.sgot->size += GOT_ENTRY_SIZE * 2; | |
| 8981 | } | |
| 8982 | ||
| b53b1bed JW |
8983 | if (got_type & GOT_TLS_IE |
| 8984 | || got_type & GOT_NORMAL) | |
| a06ea964 NC |
8985 | { |
| 8986 | locals[i].got_offset = htab->root.sgot->size; | |
| 8987 | htab->root.sgot->size += GOT_ENTRY_SIZE; | |
| 8988 | } | |
| 8989 | ||
| 8990 | if (got_type == GOT_UNKNOWN) | |
| 8991 | { | |
| 8992 | } | |
| 8993 | ||
| 0e1862bb | 8994 | if (bfd_link_pic (info)) |
| a06ea964 NC |
8995 | { |
| 8996 | if (got_type & GOT_TLSDESC_GD) | |
| 8997 | { | |
| 8998 | htab->root.srelplt->size += RELOC_SIZE (htab); | |
| 8999 | /* Note RELOC_COUNT not incremented here! */ | |
| 9000 | htab->tlsdesc_plt = (bfd_vma) - 1; | |
| 9001 | } | |
| 9002 | ||
| 9003 | if (got_type & GOT_TLS_GD) | |
| 9004 | htab->root.srelgot->size += RELOC_SIZE (htab) * 2; | |
| 9005 | ||
| b53b1bed JW |
9006 | if (got_type & GOT_TLS_IE |
| 9007 | || got_type & GOT_NORMAL) | |
| a06ea964 NC |
9008 | htab->root.srelgot->size += RELOC_SIZE (htab); |
| 9009 | } | |
| 9010 | } | |
| 9011 | else | |
| 9012 | { | |
| 9013 | locals[i].got_refcount = (bfd_vma) - 1; | |
| 9014 | } | |
| 9015 | } | |
| 9016 | } | |
| 9017 | ||
| 9018 | ||
| 9019 | /* Allocate global sym .plt and .got entries, and space for global | |
| 9020 | sym dynamic relocs. */ | |
| cec5225b | 9021 | elf_link_hash_traverse (&htab->root, elfNN_aarch64_allocate_dynrelocs, |
| a06ea964 NC |
9022 | info); |
| 9023 | ||
| 1419bbe5 WN |
9024 | /* Allocate global ifunc sym .plt and .got entries, and space for global |
| 9025 | ifunc sym dynamic relocs. */ | |
| 9026 | elf_link_hash_traverse (&htab->root, elfNN_aarch64_allocate_ifunc_dynrelocs, | |
| 9027 | info); | |
| 9028 | ||
| 1419bbe5 WN |
9029 | /* Allocate .plt and .got entries, and space for local ifunc symbols. */ |
| 9030 | htab_traverse (htab->loc_hash_table, | |
| 9031 | elfNN_aarch64_allocate_local_ifunc_dynrelocs, | |
| 9032 | info); | |
| a06ea964 NC |
9033 | |
| 9034 | /* For every jump slot reserved in the sgotplt, reloc_count is | |
| 9035 | incremented. However, when we reserve space for TLS descriptors, | |
| 9036 | it's not incremented, so in order to compute the space reserved | |
| 9037 | for them, it suffices to multiply the reloc count by the jump | |
| 9038 | slot size. */ | |
| 9039 | ||
| 9040 | if (htab->root.srelplt) | |
| 8847944f | 9041 | htab->sgotplt_jump_table_size = aarch64_compute_jump_table_size (htab); |
| a06ea964 NC |
9042 | |
| 9043 | if (htab->tlsdesc_plt) | |
| 9044 | { | |
| 9045 | if (htab->root.splt->size == 0) | |
| 37c18eed | 9046 | htab->root.splt->size += htab->plt_header_size; |
| a06ea964 | 9047 | |
| a06ea964 | 9048 | /* If we're not using lazy TLS relocations, don't generate the |
| ce12121b | 9049 | GOT and PLT entry required. */ |
| a06ea964 NC |
9050 | if (!(info->flags & DF_BIND_NOW)) |
| 9051 | { | |
| ce12121b TC |
9052 | htab->tlsdesc_plt = htab->root.splt->size; |
| 9053 | htab->root.splt->size += htab->tlsdesc_plt_entry_size; | |
| 9054 | ||
| a06ea964 NC |
9055 | htab->dt_tlsdesc_got = htab->root.sgot->size; |
| 9056 | htab->root.sgot->size += GOT_ENTRY_SIZE; | |
| 9057 | } | |
| 9058 | } | |
| 9059 | ||
| 68fcca92 | 9060 | /* Init mapping symbols information to use later to distingush between |
| 4106101c MS |
9061 | code and data while scanning for errata. */ |
| 9062 | if (htab->fix_erratum_835769 || htab->fix_erratum_843419) | |
| 68fcca92 JW |
9063 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 9064 | { | |
| 9065 | if (!is_aarch64_elf (ibfd)) | |
| 9066 | continue; | |
| 9067 | bfd_elfNN_aarch64_init_maps (ibfd); | |
| 9068 | } | |
| 9069 | ||
| a06ea964 NC |
9070 | /* We now have determined the sizes of the various dynamic sections. |
| 9071 | Allocate memory for them. */ | |
| 9072 | relocs = FALSE; | |
| 9073 | for (s = dynobj->sections; s != NULL; s = s->next) | |
| 9074 | { | |
| 9075 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 9076 | continue; | |
| 9077 | ||
| 9078 | if (s == htab->root.splt | |
| 9079 | || s == htab->root.sgot | |
| 9080 | || s == htab->root.sgotplt | |
| 9081 | || s == htab->root.iplt | |
| 9d19e4fd | 9082 | || s == htab->root.igotplt |
| 5474d94f AM |
9083 | || s == htab->root.sdynbss |
| 9084 | || s == htab->root.sdynrelro) | |
| a06ea964 NC |
9085 | { |
| 9086 | /* Strip this section if we don't need it; see the | |
| 9087 | comment below. */ | |
| 9088 | } | |
| fd361982 | 9089 | else if (CONST_STRNEQ (bfd_section_name (s), ".rela")) |
| a06ea964 NC |
9090 | { |
| 9091 | if (s->size != 0 && s != htab->root.srelplt) | |
| 9092 | relocs = TRUE; | |
| 9093 | ||
| 9094 | /* We use the reloc_count field as a counter if we need | |
| 9095 | to copy relocs into the output file. */ | |
| 9096 | if (s != htab->root.srelplt) | |
| 9097 | s->reloc_count = 0; | |
| 9098 | } | |
| 9099 | else | |
| 9100 | { | |
| 9101 | /* It's not one of our sections, so don't allocate space. */ | |
| 9102 | continue; | |
| 9103 | } | |
| 9104 | ||
| 9105 | if (s->size == 0) | |
| 9106 | { | |
| 9107 | /* If we don't need this section, strip it from the | |
| 9108 | output file. This is mostly to handle .rela.bss and | |
| 9109 | .rela.plt. We must create both sections in | |
| 9110 | create_dynamic_sections, because they must be created | |
| 9111 | before the linker maps input sections to output | |
| 9112 | sections. The linker does that before | |
| 9113 | adjust_dynamic_symbol is called, and it is that | |
| 9114 | function which decides whether anything needs to go | |
| 9115 | into these sections. */ | |
| a06ea964 NC |
9116 | s->flags |= SEC_EXCLUDE; |
| 9117 | continue; | |
| 9118 | } | |
| 9119 | ||
| 9120 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
| 9121 | continue; | |
| 9122 | ||
| 9123 | /* Allocate memory for the section contents. We use bfd_zalloc | |
| 07d6d2b8 AM |
9124 | here in case unused entries are not reclaimed before the |
| 9125 | section's contents are written out. This should not happen, | |
| 9126 | but this way if it does, we get a R_AARCH64_NONE reloc instead | |
| 9127 | of garbage. */ | |
| a06ea964 NC |
9128 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
| 9129 | if (s->contents == NULL) | |
| 9130 | return FALSE; | |
| 9131 | } | |
| 9132 | ||
| 9133 | if (htab->root.dynamic_sections_created) | |
| 9134 | { | |
| 9135 | /* Add some entries to the .dynamic section. We fill in the | |
| 07d6d2b8 AM |
9136 | values later, in elfNN_aarch64_finish_dynamic_sections, but we |
| 9137 | must add the entries now so that we get the correct size for | |
| 9138 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 9139 | dynamic linker and used by the debugger. */ | |
| a06ea964 NC |
9140 | #define add_dynamic_entry(TAG, VAL) \ |
| 9141 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
| 9142 | ||
| 0e1862bb | 9143 | if (bfd_link_executable (info)) |
| a06ea964 NC |
9144 | { |
| 9145 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
| 9146 | return FALSE; | |
| 9147 | } | |
| 9148 | ||
| 9149 | if (htab->root.splt->size != 0) | |
| 9150 | { | |
| 9151 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
| 9152 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 9153 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 9154 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
| 9155 | return FALSE; | |
| 9156 | ||
| 823710d5 SN |
9157 | if (htab->variant_pcs |
| 9158 | && !add_dynamic_entry (DT_AARCH64_VARIANT_PCS, 0)) | |
| 9159 | return FALSE; | |
| 9160 | ||
| a06ea964 | 9161 | if (htab->tlsdesc_plt |
| ce12121b | 9162 | && !(info->flags & DF_BIND_NOW) |
| a06ea964 NC |
9163 | && (!add_dynamic_entry (DT_TLSDESC_PLT, 0) |
| 9164 | || !add_dynamic_entry (DT_TLSDESC_GOT, 0))) | |
| 9165 | return FALSE; | |
| 37c18eed | 9166 | |
| 1dbade74 SD |
9167 | if ((elf_aarch64_tdata (output_bfd)->plt_type == PLT_BTI_PAC) |
| 9168 | && (!add_dynamic_entry (DT_AARCH64_BTI_PLT, 0) | |
| 9169 | || !add_dynamic_entry (DT_AARCH64_PAC_PLT, 0))) | |
| 9170 | return FALSE; | |
| 9171 | ||
| 9172 | else if ((elf_aarch64_tdata (output_bfd)->plt_type == PLT_BTI) | |
| 9173 | && !add_dynamic_entry (DT_AARCH64_BTI_PLT, 0)) | |
| 9174 | return FALSE; | |
| 9175 | ||
| 9176 | else if ((elf_aarch64_tdata (output_bfd)->plt_type == PLT_PAC) | |
| 9177 | && !add_dynamic_entry (DT_AARCH64_PAC_PLT, 0)) | |
| 37c18eed | 9178 | return FALSE; |
| a06ea964 NC |
9179 | } |
| 9180 | ||
| 9181 | if (relocs) | |
| 9182 | { | |
| 9183 | if (!add_dynamic_entry (DT_RELA, 0) | |
| 9184 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 9185 | || !add_dynamic_entry (DT_RELAENT, RELOC_SIZE (htab))) | |
| 9186 | return FALSE; | |
| 9187 | ||
| 9188 | /* If any dynamic relocs apply to a read-only section, | |
| 9189 | then we need a DT_TEXTREL entry. */ | |
| c2170589 | 9190 | if ((info->flags & DF_TEXTREL) == 0) |
| 63c1f59d | 9191 | elf_link_hash_traverse (&htab->root, maybe_set_textrel, info); |
| c2170589 | 9192 | |
| a06ea964 NC |
9193 | if ((info->flags & DF_TEXTREL) != 0) |
| 9194 | { | |
| 9195 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
| 9196 | return FALSE; | |
| 9197 | } | |
| 9198 | } | |
| 9199 | } | |
| 9200 | #undef add_dynamic_entry | |
| 9201 | ||
| 9202 | return TRUE; | |
| a06ea964 NC |
9203 | } |
| 9204 | ||
| 9205 | static inline void | |
| caed7120 YZ |
9206 | elf_aarch64_update_plt_entry (bfd *output_bfd, |
| 9207 | bfd_reloc_code_real_type r_type, | |
| 9208 | bfd_byte *plt_entry, bfd_vma value) | |
| a06ea964 | 9209 | { |
| caed7120 YZ |
9210 | reloc_howto_type *howto = elfNN_aarch64_howto_from_bfd_reloc (r_type); |
| 9211 | ||
| 1d75a8e2 NC |
9212 | /* FIXME: We should check the return value from this function call. */ |
| 9213 | (void) _bfd_aarch64_elf_put_addend (output_bfd, plt_entry, r_type, howto, value); | |
| a06ea964 NC |
9214 | } |
| 9215 | ||
| 9216 | static void | |
| cec5225b YZ |
9217 | elfNN_aarch64_create_small_pltn_entry (struct elf_link_hash_entry *h, |
| 9218 | struct elf_aarch64_link_hash_table | |
| 1419bbe5 WN |
9219 | *htab, bfd *output_bfd, |
| 9220 | struct bfd_link_info *info) | |
| a06ea964 NC |
9221 | { |
| 9222 | bfd_byte *plt_entry; | |
| 9223 | bfd_vma plt_index; | |
| 9224 | bfd_vma got_offset; | |
| 9225 | bfd_vma gotplt_entry_address; | |
| 9226 | bfd_vma plt_entry_address; | |
| 9227 | Elf_Internal_Rela rela; | |
| 9228 | bfd_byte *loc; | |
| 1419bbe5 WN |
9229 | asection *plt, *gotplt, *relplt; |
| 9230 | ||
| 9231 | /* When building a static executable, use .iplt, .igot.plt and | |
| 9232 | .rela.iplt sections for STT_GNU_IFUNC symbols. */ | |
| 9233 | if (htab->root.splt != NULL) | |
| 9234 | { | |
| 9235 | plt = htab->root.splt; | |
| 9236 | gotplt = htab->root.sgotplt; | |
| 9237 | relplt = htab->root.srelplt; | |
| 9238 | } | |
| 9239 | else | |
| 9240 | { | |
| 9241 | plt = htab->root.iplt; | |
| 9242 | gotplt = htab->root.igotplt; | |
| 9243 | relplt = htab->root.irelplt; | |
| 9244 | } | |
| 9245 | ||
| 9246 | /* Get the index in the procedure linkage table which | |
| 9247 | corresponds to this symbol. This is the index of this symbol | |
| 9248 | in all the symbols for which we are making plt entries. The | |
| 9249 | first entry in the procedure linkage table is reserved. | |
| a06ea964 | 9250 | |
| 1419bbe5 WN |
9251 | Get the offset into the .got table of the entry that |
| 9252 | corresponds to this function. Each .got entry is GOT_ENTRY_SIZE | |
| 9253 | bytes. The first three are reserved for the dynamic linker. | |
| 692e2b8b | 9254 | |
| 1419bbe5 WN |
9255 | For static executables, we don't reserve anything. */ |
| 9256 | ||
| 9257 | if (plt == htab->root.splt) | |
| 9258 | { | |
| 9259 | plt_index = (h->plt.offset - htab->plt_header_size) / htab->plt_entry_size; | |
| 9260 | got_offset = (plt_index + 3) * GOT_ENTRY_SIZE; | |
| 9261 | } | |
| 9262 | else | |
| 9263 | { | |
| 9264 | plt_index = h->plt.offset / htab->plt_entry_size; | |
| 9265 | got_offset = plt_index * GOT_ENTRY_SIZE; | |
| 9266 | } | |
| 9267 | ||
| 9268 | plt_entry = plt->contents + h->plt.offset; | |
| 9269 | plt_entry_address = plt->output_section->vma | |
| f44a1f8e | 9270 | + plt->output_offset + h->plt.offset; |
| 1419bbe5 WN |
9271 | gotplt_entry_address = gotplt->output_section->vma + |
| 9272 | gotplt->output_offset + got_offset; | |
| a06ea964 NC |
9273 | |
| 9274 | /* Copy in the boiler-plate for the PLTn entry. */ | |
| 37c18eed SD |
9275 | memcpy (plt_entry, htab->plt_entry, htab->plt_entry_size); |
| 9276 | ||
| 9277 | /* First instruction in BTI enabled PLT stub is a BTI | |
| 9278 | instruction so skip it. */ | |
| 9279 | if (elf_aarch64_tdata (output_bfd)->plt_type & PLT_BTI | |
| 9280 | && elf_elfheader (output_bfd)->e_type == ET_EXEC) | |
| 9281 | plt_entry = plt_entry + 4; | |
| a06ea964 NC |
9282 | |
| 9283 | /* Fill in the top 21 bits for this: ADRP x16, PLT_GOT + n * 8. | |
| 9284 | ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ | |
| caed7120 YZ |
9285 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADR_HI21_PCREL, |
| 9286 | plt_entry, | |
| 9287 | PG (gotplt_entry_address) - | |
| 9288 | PG (plt_entry_address)); | |
| a06ea964 NC |
9289 | |
| 9290 | /* Fill in the lo12 bits for the load from the pltgot. */ | |
| caed7120 YZ |
9291 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_LDSTNN_LO12, |
| 9292 | plt_entry + 4, | |
| 9293 | PG_OFFSET (gotplt_entry_address)); | |
| a06ea964 | 9294 | |
| 9aff4b7a | 9295 | /* Fill in the lo12 bits for the add from the pltgot entry. */ |
| caed7120 YZ |
9296 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADD_LO12, |
| 9297 | plt_entry + 8, | |
| 9298 | PG_OFFSET (gotplt_entry_address)); | |
| a06ea964 NC |
9299 | |
| 9300 | /* All the GOTPLT Entries are essentially initialized to PLT0. */ | |
| cec5225b | 9301 | bfd_put_NN (output_bfd, |
| 1419bbe5 WN |
9302 | plt->output_section->vma + plt->output_offset, |
| 9303 | gotplt->contents + got_offset); | |
| a06ea964 | 9304 | |
| a06ea964 | 9305 | rela.r_offset = gotplt_entry_address; |
| 1419bbe5 WN |
9306 | |
| 9307 | if (h->dynindx == -1 | |
| 0e1862bb | 9308 | || ((bfd_link_executable (info) |
| 1419bbe5 WN |
9309 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
| 9310 | && h->def_regular | |
| 9311 | && h->type == STT_GNU_IFUNC)) | |
| 9312 | { | |
| 9313 | /* If an STT_GNU_IFUNC symbol is locally defined, generate | |
| 9314 | R_AARCH64_IRELATIVE instead of R_AARCH64_JUMP_SLOT. */ | |
| 9315 | rela.r_info = ELFNN_R_INFO (0, AARCH64_R (IRELATIVE)); | |
| 9316 | rela.r_addend = (h->root.u.def.value | |
| 9317 | + h->root.u.def.section->output_section->vma | |
| 9318 | + h->root.u.def.section->output_offset); | |
| 9319 | } | |
| 9320 | else | |
| 9321 | { | |
| 9322 | /* Fill in the entry in the .rela.plt section. */ | |
| 9323 | rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (JUMP_SLOT)); | |
| 9324 | rela.r_addend = 0; | |
| 9325 | } | |
| a06ea964 NC |
9326 | |
| 9327 | /* Compute the relocation entry to used based on PLT index and do | |
| 9328 | not adjust reloc_count. The reloc_count has already been adjusted | |
| 9329 | to account for this entry. */ | |
| 1419bbe5 | 9330 | loc = relplt->contents + plt_index * RELOC_SIZE (htab); |
| cec5225b | 9331 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 NC |
9332 | } |
| 9333 | ||
| 9334 | /* Size sections even though they're not dynamic. We use it to setup | |
| 9335 | _TLS_MODULE_BASE_, if needed. */ | |
| 9336 | ||
| 9337 | static bfd_boolean | |
| cec5225b | 9338 | elfNN_aarch64_always_size_sections (bfd *output_bfd, |
| a06ea964 NC |
9339 | struct bfd_link_info *info) |
| 9340 | { | |
| 9341 | asection *tls_sec; | |
| 9342 | ||
| 0e1862bb | 9343 | if (bfd_link_relocatable (info)) |
| a06ea964 NC |
9344 | return TRUE; |
| 9345 | ||
| 9346 | tls_sec = elf_hash_table (info)->tls_sec; | |
| 9347 | ||
| 9348 | if (tls_sec) | |
| 9349 | { | |
| 9350 | struct elf_link_hash_entry *tlsbase; | |
| 9351 | ||
| 9352 | tlsbase = elf_link_hash_lookup (elf_hash_table (info), | |
| 9353 | "_TLS_MODULE_BASE_", TRUE, TRUE, FALSE); | |
| 9354 | ||
| 9355 | if (tlsbase) | |
| 9356 | { | |
| 9357 | struct bfd_link_hash_entry *h = NULL; | |
| 9358 | const struct elf_backend_data *bed = | |
| 9359 | get_elf_backend_data (output_bfd); | |
| 9360 | ||
| 9361 | if (!(_bfd_generic_link_add_one_symbol | |
| 9362 | (info, output_bfd, "_TLS_MODULE_BASE_", BSF_LOCAL, | |
| 9363 | tls_sec, 0, NULL, FALSE, bed->collect, &h))) | |
| 9364 | return FALSE; | |
| 9365 | ||
| 9366 | tlsbase->type = STT_TLS; | |
| 9367 | tlsbase = (struct elf_link_hash_entry *) h; | |
| 9368 | tlsbase->def_regular = 1; | |
| 9369 | tlsbase->other = STV_HIDDEN; | |
| 9370 | (*bed->elf_backend_hide_symbol) (info, tlsbase, TRUE); | |
| 9371 | } | |
| 9372 | } | |
| 9373 | ||
| 9374 | return TRUE; | |
| 9375 | } | |
| 9376 | ||
| 9377 | /* Finish up dynamic symbol handling. We set the contents of various | |
| 9378 | dynamic sections here. */ | |
| 2d0ca824 | 9379 | |
| a06ea964 | 9380 | static bfd_boolean |
| cec5225b | 9381 | elfNN_aarch64_finish_dynamic_symbol (bfd *output_bfd, |
| a06ea964 NC |
9382 | struct bfd_link_info *info, |
| 9383 | struct elf_link_hash_entry *h, | |
| 9384 | Elf_Internal_Sym *sym) | |
| 9385 | { | |
| cec5225b YZ |
9386 | struct elf_aarch64_link_hash_table *htab; |
| 9387 | htab = elf_aarch64_hash_table (info); | |
| a06ea964 NC |
9388 | |
| 9389 | if (h->plt.offset != (bfd_vma) - 1) | |
| 9390 | { | |
| 1419bbe5 WN |
9391 | asection *plt, *gotplt, *relplt; |
| 9392 | ||
| a06ea964 | 9393 | /* This symbol has an entry in the procedure linkage table. Set |
| 07d6d2b8 | 9394 | it up. */ |
| a06ea964 | 9395 | |
| 1419bbe5 WN |
9396 | /* When building a static executable, use .iplt, .igot.plt and |
| 9397 | .rela.iplt sections for STT_GNU_IFUNC symbols. */ | |
| 9398 | if (htab->root.splt != NULL) | |
| 9399 | { | |
| 9400 | plt = htab->root.splt; | |
| 9401 | gotplt = htab->root.sgotplt; | |
| 9402 | relplt = htab->root.srelplt; | |
| 9403 | } | |
| 9404 | else | |
| 9405 | { | |
| 9406 | plt = htab->root.iplt; | |
| 9407 | gotplt = htab->root.igotplt; | |
| 9408 | relplt = htab->root.irelplt; | |
| 9409 | } | |
| 9410 | ||
| 9411 | /* This symbol has an entry in the procedure linkage table. Set | |
| 9412 | it up. */ | |
| 9413 | if ((h->dynindx == -1 | |
| 0e1862bb | 9414 | && !((h->forced_local || bfd_link_executable (info)) |
| 1419bbe5 WN |
9415 | && h->def_regular |
| 9416 | && h->type == STT_GNU_IFUNC)) | |
| 9417 | || plt == NULL | |
| 9418 | || gotplt == NULL | |
| 9419 | || relplt == NULL) | |
| f955cccf | 9420 | return FALSE; |
| a06ea964 | 9421 | |
| 1419bbe5 | 9422 | elfNN_aarch64_create_small_pltn_entry (h, htab, output_bfd, info); |
| a06ea964 NC |
9423 | if (!h->def_regular) |
| 9424 | { | |
| 9425 | /* Mark the symbol as undefined, rather than as defined in | |
| 46b87d49 | 9426 | the .plt section. */ |
| a06ea964 | 9427 | sym->st_shndx = SHN_UNDEF; |
| 46b87d49 WN |
9428 | /* If the symbol is weak we need to clear the value. |
| 9429 | Otherwise, the PLT entry would provide a definition for | |
| 9430 | the symbol even if the symbol wasn't defined anywhere, | |
| 9431 | and so the symbol would never be NULL. Leave the value if | |
| 9432 | there were any relocations where pointer equality matters | |
| 9433 | (this is a clue for the dynamic linker, to make function | |
| 9434 | pointer comparisons work between an application and shared | |
| 9435 | library). */ | |
| 9436 | if (!h->ref_regular_nonweak || !h->pointer_equality_needed) | |
| 9437 | sym->st_value = 0; | |
| a06ea964 NC |
9438 | } |
| 9439 | } | |
| 9440 | ||
| 9441 | if (h->got.offset != (bfd_vma) - 1 | |
| a377ae2a SN |
9442 | && elf_aarch64_hash_entry (h)->got_type == GOT_NORMAL |
| 9443 | /* Undefined weak symbol in static PIE resolves to 0 without | |
| 9444 | any dynamic relocations. */ | |
| 9445 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
| a06ea964 NC |
9446 | { |
| 9447 | Elf_Internal_Rela rela; | |
| 9448 | bfd_byte *loc; | |
| 9449 | ||
| 9450 | /* This symbol has an entry in the global offset table. Set it | |
| 07d6d2b8 | 9451 | up. */ |
| a06ea964 NC |
9452 | if (htab->root.sgot == NULL || htab->root.srelgot == NULL) |
| 9453 | abort (); | |
| 9454 | ||
| 9455 | rela.r_offset = (htab->root.sgot->output_section->vma | |
| 9456 | + htab->root.sgot->output_offset | |
| 9457 | + (h->got.offset & ~(bfd_vma) 1)); | |
| 9458 | ||
| 49206388 WN |
9459 | if (h->def_regular |
| 9460 | && h->type == STT_GNU_IFUNC) | |
| 9461 | { | |
| 0e1862bb | 9462 | if (bfd_link_pic (info)) |
| 49206388 WN |
9463 | { |
| 9464 | /* Generate R_AARCH64_GLOB_DAT. */ | |
| 9465 | goto do_glob_dat; | |
| 9466 | } | |
| 9467 | else | |
| 9468 | { | |
| 9469 | asection *plt; | |
| 9470 | ||
| 9471 | if (!h->pointer_equality_needed) | |
| 9472 | abort (); | |
| 9473 | ||
| 9474 | /* For non-shared object, we can't use .got.plt, which | |
| 9475 | contains the real function address if we need pointer | |
| 9476 | equality. We load the GOT entry with the PLT entry. */ | |
| 9477 | plt = htab->root.splt ? htab->root.splt : htab->root.iplt; | |
| 9478 | bfd_put_NN (output_bfd, (plt->output_section->vma | |
| 9479 | + plt->output_offset | |
| 9480 | + h->plt.offset), | |
| 9481 | htab->root.sgot->contents | |
| 9482 | + (h->got.offset & ~(bfd_vma) 1)); | |
| 9483 | return TRUE; | |
| 9484 | } | |
| 9485 | } | |
| 0e1862bb | 9486 | else if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h)) |
| a06ea964 | 9487 | { |
| 0ee3a6db | 9488 | if (!(h->def_regular || ELF_COMMON_DEF_P (h))) |
| a06ea964 NC |
9489 | return FALSE; |
| 9490 | ||
| 9491 | BFD_ASSERT ((h->got.offset & 1) != 0); | |
| a6bb11b2 | 9492 | rela.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE)); |
| a06ea964 NC |
9493 | rela.r_addend = (h->root.u.def.value |
| 9494 | + h->root.u.def.section->output_section->vma | |
| 9495 | + h->root.u.def.section->output_offset); | |
| 9496 | } | |
| 9497 | else | |
| 9498 | { | |
| dc1e8a47 | 9499 | do_glob_dat: |
| a06ea964 | 9500 | BFD_ASSERT ((h->got.offset & 1) == 0); |
| cec5225b | 9501 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| a06ea964 | 9502 | htab->root.sgot->contents + h->got.offset); |
| a6bb11b2 | 9503 | rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (GLOB_DAT)); |
| a06ea964 NC |
9504 | rela.r_addend = 0; |
| 9505 | } | |
| 9506 | ||
| 9507 | loc = htab->root.srelgot->contents; | |
| 9508 | loc += htab->root.srelgot->reloc_count++ * RELOC_SIZE (htab); | |
| cec5225b | 9509 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 NC |
9510 | } |
| 9511 | ||
| 9512 | if (h->needs_copy) | |
| 9513 | { | |
| 9514 | Elf_Internal_Rela rela; | |
| 5474d94f | 9515 | asection *s; |
| a06ea964 NC |
9516 | bfd_byte *loc; |
| 9517 | ||
| 9518 | /* This symbol needs a copy reloc. Set it up. */ | |
| a06ea964 NC |
9519 | if (h->dynindx == -1 |
| 9520 | || (h->root.type != bfd_link_hash_defined | |
| 9521 | && h->root.type != bfd_link_hash_defweak) | |
| 9d19e4fd | 9522 | || htab->root.srelbss == NULL) |
| a06ea964 NC |
9523 | abort (); |
| 9524 | ||
| 9525 | rela.r_offset = (h->root.u.def.value | |
| 9526 | + h->root.u.def.section->output_section->vma | |
| 9527 | + h->root.u.def.section->output_offset); | |
| a6bb11b2 | 9528 | rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (COPY)); |
| a06ea964 | 9529 | rela.r_addend = 0; |
| afbf7e8e | 9530 | if (h->root.u.def.section == htab->root.sdynrelro) |
| 5474d94f AM |
9531 | s = htab->root.sreldynrelro; |
| 9532 | else | |
| 9533 | s = htab->root.srelbss; | |
| 9534 | loc = s->contents + s->reloc_count++ * RELOC_SIZE (htab); | |
| cec5225b | 9535 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 NC |
9536 | } |
| 9537 | ||
| 9538 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. SYM may | |
| 9539 | be NULL for local symbols. */ | |
| 9540 | if (sym != NULL | |
| 9637f6ef | 9541 | && (h == elf_hash_table (info)->hdynamic |
| a06ea964 NC |
9542 | || h == elf_hash_table (info)->hgot)) |
| 9543 | sym->st_shndx = SHN_ABS; | |
| 9544 | ||
| 9545 | return TRUE; | |
| 9546 | } | |
| 9547 | ||
| 1419bbe5 WN |
9548 | /* Finish up local dynamic symbol handling. We set the contents of |
| 9549 | various dynamic sections here. */ | |
| 9550 | ||
| 9551 | static bfd_boolean | |
| 9552 | elfNN_aarch64_finish_local_dynamic_symbol (void **slot, void *inf) | |
| 9553 | { | |
| 9554 | struct elf_link_hash_entry *h | |
| 9555 | = (struct elf_link_hash_entry *) *slot; | |
| 9556 | struct bfd_link_info *info | |
| 9557 | = (struct bfd_link_info *) inf; | |
| 9558 | ||
| 9559 | return elfNN_aarch64_finish_dynamic_symbol (info->output_bfd, | |
| 9560 | info, h, NULL); | |
| 9561 | } | |
| 9562 | ||
| a06ea964 | 9563 | static void |
| cec5225b YZ |
9564 | elfNN_aarch64_init_small_plt0_entry (bfd *output_bfd ATTRIBUTE_UNUSED, |
| 9565 | struct elf_aarch64_link_hash_table | |
| a06ea964 NC |
9566 | *htab) |
| 9567 | { | |
| 9568 | /* Fill in PLT0. Fixme:RR Note this doesn't distinguish between | |
| 9569 | small and large plts and at the minute just generates | |
| 9570 | the small PLT. */ | |
| 9571 | ||
| cec5225b | 9572 | /* PLT0 of the small PLT looks like this in ELF64 - |
| a06ea964 NC |
9573 | stp x16, x30, [sp, #-16]! // Save the reloc and lr on stack. |
| 9574 | adrp x16, PLT_GOT + 16 // Get the page base of the GOTPLT | |
| 9575 | ldr x17, [x16, #:lo12:PLT_GOT+16] // Load the address of the | |
| 9576 | // symbol resolver | |
| 9577 | add x16, x16, #:lo12:PLT_GOT+16 // Load the lo12 bits of the | |
| 9578 | // GOTPLT entry for this. | |
| 9579 | br x17 | |
| cec5225b | 9580 | PLT0 will be slightly different in ELF32 due to different got entry |
| 2d0ca824 | 9581 | size. */ |
| caed7120 | 9582 | bfd_vma plt_got_2nd_ent; /* Address of GOT[2]. */ |
| a06ea964 NC |
9583 | bfd_vma plt_base; |
| 9584 | ||
| 9585 | ||
| 37c18eed SD |
9586 | memcpy (htab->root.splt->contents, htab->plt0_entry, |
| 9587 | htab->plt_header_size); | |
| a06ea964 | 9588 | elf_section_data (htab->root.splt->output_section)->this_hdr.sh_entsize = |
| 37c18eed | 9589 | htab->plt_header_size; |
| a06ea964 | 9590 | |
| caed7120 YZ |
9591 | plt_got_2nd_ent = (htab->root.sgotplt->output_section->vma |
| 9592 | + htab->root.sgotplt->output_offset | |
| 9593 | + GOT_ENTRY_SIZE * 2); | |
| a06ea964 NC |
9594 | |
| 9595 | plt_base = htab->root.splt->output_section->vma + | |
| f44a1f8e | 9596 | htab->root.splt->output_offset; |
| a06ea964 | 9597 | |
| 37c18eed SD |
9598 | /* First instruction in BTI enabled PLT stub is a BTI |
| 9599 | instruction so skip it. */ | |
| 9600 | bfd_byte *plt0_entry = htab->root.splt->contents; | |
| 9601 | if (elf_aarch64_tdata (output_bfd)->plt_type & PLT_BTI) | |
| 9602 | plt0_entry = plt0_entry + 4; | |
| 9603 | ||
| a06ea964 NC |
9604 | /* Fill in the top 21 bits for this: ADRP x16, PLT_GOT + n * 8. |
| 9605 | ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ | |
| caed7120 | 9606 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADR_HI21_PCREL, |
| 37c18eed | 9607 | plt0_entry + 4, |
| caed7120 | 9608 | PG (plt_got_2nd_ent) - PG (plt_base + 4)); |
| a06ea964 | 9609 | |
| caed7120 | 9610 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_LDSTNN_LO12, |
| 37c18eed | 9611 | plt0_entry + 8, |
| caed7120 | 9612 | PG_OFFSET (plt_got_2nd_ent)); |
| a06ea964 | 9613 | |
| caed7120 | 9614 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADD_LO12, |
| 37c18eed | 9615 | plt0_entry + 12, |
| caed7120 | 9616 | PG_OFFSET (plt_got_2nd_ent)); |
| a06ea964 NC |
9617 | } |
| 9618 | ||
| 9619 | static bfd_boolean | |
| cec5225b | 9620 | elfNN_aarch64_finish_dynamic_sections (bfd *output_bfd, |
| a06ea964 NC |
9621 | struct bfd_link_info *info) |
| 9622 | { | |
| cec5225b | 9623 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 NC |
9624 | bfd *dynobj; |
| 9625 | asection *sdyn; | |
| 9626 | ||
| cec5225b | 9627 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
9628 | dynobj = htab->root.dynobj; |
| 9629 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); | |
| 9630 | ||
| 9631 | if (htab->root.dynamic_sections_created) | |
| 9632 | { | |
| cec5225b | 9633 | ElfNN_External_Dyn *dyncon, *dynconend; |
| a06ea964 NC |
9634 | |
| 9635 | if (sdyn == NULL || htab->root.sgot == NULL) | |
| 9636 | abort (); | |
| 9637 | ||
| cec5225b YZ |
9638 | dyncon = (ElfNN_External_Dyn *) sdyn->contents; |
| 9639 | dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size); | |
| a06ea964 NC |
9640 | for (; dyncon < dynconend; dyncon++) |
| 9641 | { | |
| 9642 | Elf_Internal_Dyn dyn; | |
| 9643 | asection *s; | |
| 9644 | ||
| cec5225b | 9645 | bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn); |
| a06ea964 NC |
9646 | |
| 9647 | switch (dyn.d_tag) | |
| 9648 | { | |
| 9649 | default: | |
| 9650 | continue; | |
| 9651 | ||
| 9652 | case DT_PLTGOT: | |
| 9653 | s = htab->root.sgotplt; | |
| 9654 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
| 9655 | break; | |
| 9656 | ||
| 9657 | case DT_JMPREL: | |
| 4ade44b7 AM |
9658 | s = htab->root.srelplt; |
| 9659 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
| a06ea964 NC |
9660 | break; |
| 9661 | ||
| 9662 | case DT_PLTRELSZ: | |
| c955de36 | 9663 | s = htab->root.srelplt; |
| a06ea964 NC |
9664 | dyn.d_un.d_val = s->size; |
| 9665 | break; | |
| 9666 | ||
| a06ea964 NC |
9667 | case DT_TLSDESC_PLT: |
| 9668 | s = htab->root.splt; | |
| 9669 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset | |
| 9670 | + htab->tlsdesc_plt; | |
| 9671 | break; | |
| 9672 | ||
| 9673 | case DT_TLSDESC_GOT: | |
| 9674 | s = htab->root.sgot; | |
| ce12121b | 9675 | BFD_ASSERT (htab->dt_tlsdesc_got != (bfd_vma)-1); |
| a06ea964 NC |
9676 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset |
| 9677 | + htab->dt_tlsdesc_got; | |
| 9678 | break; | |
| 9679 | } | |
| 9680 | ||
| cec5225b | 9681 | bfd_elfNN_swap_dyn_out (output_bfd, &dyn, dyncon); |
| a06ea964 NC |
9682 | } |
| 9683 | ||
| 9684 | } | |
| 9685 | ||
| 9686 | /* Fill in the special first entry in the procedure linkage table. */ | |
| 9687 | if (htab->root.splt && htab->root.splt->size > 0) | |
| 9688 | { | |
| cec5225b | 9689 | elfNN_aarch64_init_small_plt0_entry (output_bfd, htab); |
| a06ea964 NC |
9690 | |
| 9691 | elf_section_data (htab->root.splt->output_section)-> | |
| 9692 | this_hdr.sh_entsize = htab->plt_entry_size; | |
| 9693 | ||
| 9694 | ||
| ce12121b | 9695 | if (htab->tlsdesc_plt && !(info->flags & DF_BIND_NOW)) |
| a06ea964 | 9696 | { |
| ce12121b | 9697 | BFD_ASSERT (htab->dt_tlsdesc_got != (bfd_vma)-1); |
| cec5225b | 9698 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| a06ea964 NC |
9699 | htab->root.sgot->contents + htab->dt_tlsdesc_got); |
| 9700 | ||
| 37c18eed SD |
9701 | const bfd_byte *entry = elfNN_aarch64_tlsdesc_small_plt_entry; |
| 9702 | htab->tlsdesc_plt_entry_size = PLT_TLSDESC_ENTRY_SIZE; | |
| 9703 | ||
| 9704 | aarch64_plt_type type = elf_aarch64_tdata (output_bfd)->plt_type; | |
| 1dbade74 | 9705 | if (type == PLT_BTI || type == PLT_BTI_PAC) |
| 37c18eed SD |
9706 | { |
| 9707 | entry = elfNN_aarch64_tlsdesc_small_plt_bti_entry; | |
| 37c18eed SD |
9708 | } |
| 9709 | ||
| a06ea964 | 9710 | memcpy (htab->root.splt->contents + htab->tlsdesc_plt, |
| 37c18eed | 9711 | entry, htab->tlsdesc_plt_entry_size); |
| a06ea964 NC |
9712 | |
| 9713 | { | |
| 9714 | bfd_vma adrp1_addr = | |
| 9715 | htab->root.splt->output_section->vma | |
| 9716 | + htab->root.splt->output_offset + htab->tlsdesc_plt + 4; | |
| 9717 | ||
| caed7120 | 9718 | bfd_vma adrp2_addr = adrp1_addr + 4; |
| a06ea964 NC |
9719 | |
| 9720 | bfd_vma got_addr = | |
| 9721 | htab->root.sgot->output_section->vma | |
| 9722 | + htab->root.sgot->output_offset; | |
| 9723 | ||
| 9724 | bfd_vma pltgot_addr = | |
| 9725 | htab->root.sgotplt->output_section->vma | |
| 9726 | + htab->root.sgotplt->output_offset; | |
| 9727 | ||
| 9728 | bfd_vma dt_tlsdesc_got = got_addr + htab->dt_tlsdesc_got; | |
| caed7120 YZ |
9729 | |
| 9730 | bfd_byte *plt_entry = | |
| 9731 | htab->root.splt->contents + htab->tlsdesc_plt; | |
| a06ea964 | 9732 | |
| 37c18eed SD |
9733 | /* First instruction in BTI enabled PLT stub is a BTI |
| 9734 | instruction so skip it. */ | |
| 9735 | if (type & PLT_BTI) | |
| 9736 | { | |
| 9737 | plt_entry = plt_entry + 4; | |
| 9738 | adrp1_addr = adrp1_addr + 4; | |
| 9739 | adrp2_addr = adrp2_addr + 4; | |
| 9740 | } | |
| 9741 | ||
| a06ea964 | 9742 | /* adrp x2, DT_TLSDESC_GOT */ |
| caed7120 YZ |
9743 | elf_aarch64_update_plt_entry (output_bfd, |
| 9744 | BFD_RELOC_AARCH64_ADR_HI21_PCREL, | |
| 9745 | plt_entry + 4, | |
| 9746 | (PG (dt_tlsdesc_got) | |
| 9747 | - PG (adrp1_addr))); | |
| a06ea964 NC |
9748 | |
| 9749 | /* adrp x3, 0 */ | |
| caed7120 YZ |
9750 | elf_aarch64_update_plt_entry (output_bfd, |
| 9751 | BFD_RELOC_AARCH64_ADR_HI21_PCREL, | |
| 9752 | plt_entry + 8, | |
| 9753 | (PG (pltgot_addr) | |
| 9754 | - PG (adrp2_addr))); | |
| a06ea964 NC |
9755 | |
| 9756 | /* ldr x2, [x2, #0] */ | |
| caed7120 YZ |
9757 | elf_aarch64_update_plt_entry (output_bfd, |
| 9758 | BFD_RELOC_AARCH64_LDSTNN_LO12, | |
| 9759 | plt_entry + 12, | |
| 9760 | PG_OFFSET (dt_tlsdesc_got)); | |
| a06ea964 NC |
9761 | |
| 9762 | /* add x3, x3, 0 */ | |
| caed7120 YZ |
9763 | elf_aarch64_update_plt_entry (output_bfd, |
| 9764 | BFD_RELOC_AARCH64_ADD_LO12, | |
| 9765 | plt_entry + 16, | |
| 9766 | PG_OFFSET (pltgot_addr)); | |
| a06ea964 NC |
9767 | } |
| 9768 | } | |
| 9769 | } | |
| 9770 | ||
| 9771 | if (htab->root.sgotplt) | |
| 9772 | { | |
| 9773 | if (bfd_is_abs_section (htab->root.sgotplt->output_section)) | |
| 9774 | { | |
| 4eca0228 | 9775 | _bfd_error_handler |
| 871b3ab2 | 9776 | (_("discarded output section: `%pA'"), htab->root.sgotplt); |
| a06ea964 NC |
9777 | return FALSE; |
| 9778 | } | |
| 9779 | ||
| 9780 | /* Fill in the first three entries in the global offset table. */ | |
| 9781 | if (htab->root.sgotplt->size > 0) | |
| 9782 | { | |
| 8db339a6 MS |
9783 | bfd_put_NN (output_bfd, (bfd_vma) 0, htab->root.sgotplt->contents); |
| 9784 | ||
| a06ea964 | 9785 | /* Write GOT[1] and GOT[2], needed for the dynamic linker. */ |
| cec5225b | 9786 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
9787 | (bfd_vma) 0, |
| 9788 | htab->root.sgotplt->contents + GOT_ENTRY_SIZE); | |
| cec5225b | 9789 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
9790 | (bfd_vma) 0, |
| 9791 | htab->root.sgotplt->contents + GOT_ENTRY_SIZE * 2); | |
| 9792 | } | |
| 9793 | ||
| 8db339a6 MS |
9794 | if (htab->root.sgot) |
| 9795 | { | |
| 9796 | if (htab->root.sgot->size > 0) | |
| 9797 | { | |
| 9798 | bfd_vma addr = | |
| 9799 | sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0; | |
| 9800 | bfd_put_NN (output_bfd, addr, htab->root.sgot->contents); | |
| 9801 | } | |
| 9802 | } | |
| 9803 | ||
| a06ea964 NC |
9804 | elf_section_data (htab->root.sgotplt->output_section)-> |
| 9805 | this_hdr.sh_entsize = GOT_ENTRY_SIZE; | |
| 9806 | } | |
| 9807 | ||
| 9808 | if (htab->root.sgot && htab->root.sgot->size > 0) | |
| 9809 | elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize | |
| 9810 | = GOT_ENTRY_SIZE; | |
| 9811 | ||
| 1419bbe5 WN |
9812 | /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */ |
| 9813 | htab_traverse (htab->loc_hash_table, | |
| 9814 | elfNN_aarch64_finish_local_dynamic_symbol, | |
| 9815 | info); | |
| 9816 | ||
| a06ea964 NC |
9817 | return TRUE; |
| 9818 | } | |
| 9819 | ||
| 37c18eed SD |
9820 | /* Check if BTI enabled PLTs are needed. Returns the type needed. */ |
| 9821 | static aarch64_plt_type | |
| 9822 | get_plt_type (bfd *abfd) | |
| 9823 | { | |
| 9824 | aarch64_plt_type ret = PLT_NORMAL; | |
| 9825 | bfd_byte *contents, *extdyn, *extdynend; | |
| 9826 | asection *sec = bfd_get_section_by_name (abfd, ".dynamic"); | |
| 9827 | if (!sec || !bfd_malloc_and_get_section (abfd, sec, &contents)) | |
| 9828 | return ret; | |
| 9829 | extdyn = contents; | |
| 9830 | extdynend = contents + sec->size; | |
| 9831 | for (; extdyn < extdynend; extdyn += sizeof (ElfNN_External_Dyn)) | |
| 9832 | { | |
| 9833 | Elf_Internal_Dyn dyn; | |
| 9834 | bfd_elfNN_swap_dyn_in (abfd, extdyn, &dyn); | |
| 9835 | ||
| 9836 | /* Let's check the processor specific dynamic array tags. */ | |
| 9837 | bfd_vma tag = dyn.d_tag; | |
| 9838 | if (tag < DT_LOPROC || tag > DT_HIPROC) | |
| 9839 | continue; | |
| 9840 | ||
| 9841 | switch (tag) | |
| 9842 | { | |
| 9843 | case DT_AARCH64_BTI_PLT: | |
| 1dbade74 SD |
9844 | ret |= PLT_BTI; |
| 9845 | break; | |
| 9846 | ||
| 9847 | case DT_AARCH64_PAC_PLT: | |
| 9848 | ret |= PLT_PAC; | |
| 37c18eed SD |
9849 | break; |
| 9850 | ||
| 9851 | default: break; | |
| 9852 | } | |
| 9853 | } | |
| 9854 | free (contents); | |
| 9855 | return ret; | |
| 9856 | } | |
| 9857 | ||
| 9858 | static long | |
| 9859 | elfNN_aarch64_get_synthetic_symtab (bfd *abfd, | |
| 9860 | long symcount, | |
| 9861 | asymbol **syms, | |
| 9862 | long dynsymcount, | |
| 9863 | asymbol **dynsyms, | |
| 9864 | asymbol **ret) | |
| 9865 | { | |
| 9866 | elf_aarch64_tdata (abfd)->plt_type = get_plt_type (abfd); | |
| 9867 | return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms, | |
| 9868 | dynsymcount, dynsyms, ret); | |
| 9869 | } | |
| 9870 | ||
| a06ea964 NC |
9871 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
| 9872 | or (bfd_vma) -1 if it should not be included. */ | |
| 9873 | ||
| 9874 | static bfd_vma | |
| cec5225b | 9875 | elfNN_aarch64_plt_sym_val (bfd_vma i, const asection *plt, |
| a06ea964 NC |
9876 | const arelent *rel ATTRIBUTE_UNUSED) |
| 9877 | { | |
| 37c18eed SD |
9878 | size_t plt0_size = PLT_ENTRY_SIZE; |
| 9879 | size_t pltn_size = PLT_SMALL_ENTRY_SIZE; | |
| 9880 | ||
| 1dbade74 SD |
9881 | if (elf_aarch64_tdata (plt->owner)->plt_type == PLT_BTI_PAC) |
| 9882 | { | |
| 1dbade74 SD |
9883 | if (elf_elfheader (plt->owner)->e_type == ET_EXEC) |
| 9884 | pltn_size = PLT_BTI_PAC_SMALL_ENTRY_SIZE; | |
| 9885 | else | |
| 9886 | pltn_size = PLT_PAC_SMALL_ENTRY_SIZE; | |
| 9887 | } | |
| 9888 | else if (elf_aarch64_tdata (plt->owner)->plt_type == PLT_BTI) | |
| 37c18eed | 9889 | { |
| 37c18eed SD |
9890 | if (elf_elfheader (plt->owner)->e_type == ET_EXEC) |
| 9891 | pltn_size = PLT_BTI_SMALL_ENTRY_SIZE; | |
| 9892 | } | |
| 1dbade74 SD |
9893 | else if (elf_aarch64_tdata (plt->owner)->plt_type == PLT_PAC) |
| 9894 | { | |
| 1dbade74 SD |
9895 | pltn_size = PLT_PAC_SMALL_ENTRY_SIZE; |
| 9896 | } | |
| 9897 | ||
| 37c18eed | 9898 | return plt->vma + plt0_size + i * pltn_size; |
| a06ea964 NC |
9899 | } |
| 9900 | ||
| d691934d NC |
9901 | /* Returns TRUE if NAME is an AArch64 mapping symbol. |
| 9902 | The ARM ELF standard defines $x (for A64 code) and $d (for data). | |
| 9903 | It also allows a period initiated suffix to be added to the symbol, ie: | |
| 9904 | "$[adtx]\.[:sym_char]+". */ | |
| 9905 | ||
| 9906 | static bfd_boolean | |
| 9907 | is_aarch64_mapping_symbol (const char * name) | |
| 9908 | { | |
| 9909 | return name != NULL /* Paranoia. */ | |
| 9910 | && name[0] == '$' /* Note: if objcopy --prefix-symbols has been used then | |
| 9911 | the mapping symbols could have acquired a prefix. | |
| 9912 | We do not support this here, since such symbols no | |
| 9913 | longer conform to the ARM ELF ABI. */ | |
| 9914 | && (name[1] == 'd' || name[1] == 'x') | |
| 9915 | && (name[2] == 0 || name[2] == '.'); | |
| 9916 | /* FIXME: Strictly speaking the symbol is only a valid mapping symbol if | |
| 9917 | any characters that follow the period are legal characters for the body | |
| 9918 | of a symbol's name. For now we just assume that this is the case. */ | |
| 9919 | } | |
| 9920 | ||
| 9921 | /* Make sure that mapping symbols in object files are not removed via the | |
| 9922 | "strip --strip-unneeded" tool. These symbols might needed in order to | |
| 9923 | correctly generate linked files. Once an object file has been linked, | |
| 9924 | it should be safe to remove them. */ | |
| 9925 | ||
| 9926 | static void | |
| 9927 | elfNN_aarch64_backend_symbol_processing (bfd *abfd, asymbol *sym) | |
| 9928 | { | |
| 9929 | if (((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
| 9930 | && sym->section != bfd_abs_section_ptr | |
| 9931 | && is_aarch64_mapping_symbol (sym->name)) | |
| 9932 | sym->flags |= BSF_KEEP; | |
| 9933 | } | |
| 9934 | ||
| cd702818 SD |
9935 | /* Implement elf_backend_setup_gnu_properties for AArch64. It serves as a |
| 9936 | wrapper function for _bfd_aarch64_elf_link_setup_gnu_properties to account | |
| 9937 | for the effect of GNU properties of the output_bfd. */ | |
| 9938 | static bfd * | |
| 9939 | elfNN_aarch64_link_setup_gnu_properties (struct bfd_link_info *info) | |
| 9940 | { | |
| 9941 | uint32_t prop = elf_aarch64_tdata (info->output_bfd)->gnu_and_prop; | |
| 9942 | bfd *pbfd = _bfd_aarch64_elf_link_setup_gnu_properties (info, &prop); | |
| 9943 | elf_aarch64_tdata (info->output_bfd)->gnu_and_prop = prop; | |
| 37c18eed SD |
9944 | elf_aarch64_tdata (info->output_bfd)->plt_type |
| 9945 | |= (prop & GNU_PROPERTY_AARCH64_FEATURE_1_BTI) ? PLT_BTI : 0; | |
| 9946 | setup_plt_values (info, elf_aarch64_tdata (info->output_bfd)->plt_type); | |
| cd702818 SD |
9947 | return pbfd; |
| 9948 | } | |
| 9949 | ||
| 9950 | /* Implement elf_backend_merge_gnu_properties for AArch64. It serves as a | |
| 9951 | wrapper function for _bfd_aarch64_elf_merge_gnu_properties to account | |
| 9952 | for the effect of GNU properties of the output_bfd. */ | |
| 9953 | static bfd_boolean | |
| 9954 | elfNN_aarch64_merge_gnu_properties (struct bfd_link_info *info, | |
| 4e539114 | 9955 | bfd *abfd, bfd *bbfd, |
| cd702818 SD |
9956 | elf_property *aprop, |
| 9957 | elf_property *bprop) | |
| 9958 | { | |
| 9959 | uint32_t prop | |
| 9960 | = elf_aarch64_tdata (info->output_bfd)->gnu_and_prop; | |
| 37c18eed SD |
9961 | |
| 9962 | /* If output has been marked with BTI using command line argument, give out | |
| 9963 | warning if necessary. */ | |
| 4e539114 SD |
9964 | /* Properties are merged per type, hence only check for warnings when merging |
| 9965 | GNU_PROPERTY_AARCH64_FEATURE_1_AND. */ | |
| 9966 | if (((aprop && aprop->pr_type == GNU_PROPERTY_AARCH64_FEATURE_1_AND) | |
| 9967 | || (bprop && bprop->pr_type == GNU_PROPERTY_AARCH64_FEATURE_1_AND)) | |
| 9968 | && (prop & GNU_PROPERTY_AARCH64_FEATURE_1_BTI) | |
| 37c18eed SD |
9969 | && (!elf_aarch64_tdata (info->output_bfd)->no_bti_warn)) |
| 9970 | { | |
| 9971 | if ((aprop && !(aprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_BTI)) | |
| 4e539114 | 9972 | || !aprop) |
| 37c18eed | 9973 | { |
| 8bf6d176 | 9974 | _bfd_error_handler (_("%pB: warning: BTI turned on by -z force-bti when " |
| 4e539114 SD |
9975 | "all inputs do not have BTI in NOTE section."), |
| 9976 | abfd); | |
| 9977 | } | |
| 9978 | if ((bprop && !(bprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_BTI)) | |
| 9979 | || !bprop) | |
| 9980 | { | |
| 8bf6d176 | 9981 | _bfd_error_handler (_("%pB: warning: BTI turned on by -z force-bti when " |
| 4e539114 SD |
9982 | "all inputs do not have BTI in NOTE section."), |
| 9983 | bbfd); | |
| 37c18eed SD |
9984 | } |
| 9985 | } | |
| 9986 | ||
| cd702818 SD |
9987 | return _bfd_aarch64_elf_merge_gnu_properties (info, abfd, aprop, |
| 9988 | bprop, prop); | |
| 9989 | } | |
| a06ea964 NC |
9990 | |
| 9991 | /* We use this so we can override certain functions | |
| 9992 | (though currently we don't). */ | |
| 9993 | ||
| cec5225b | 9994 | const struct elf_size_info elfNN_aarch64_size_info = |
| a06ea964 | 9995 | { |
| cec5225b YZ |
9996 | sizeof (ElfNN_External_Ehdr), |
| 9997 | sizeof (ElfNN_External_Phdr), | |
| 9998 | sizeof (ElfNN_External_Shdr), | |
| 9999 | sizeof (ElfNN_External_Rel), | |
| 10000 | sizeof (ElfNN_External_Rela), | |
| 10001 | sizeof (ElfNN_External_Sym), | |
| 10002 | sizeof (ElfNN_External_Dyn), | |
| a06ea964 NC |
10003 | sizeof (Elf_External_Note), |
| 10004 | 4, /* Hash table entry size. */ | |
| 10005 | 1, /* Internal relocs per external relocs. */ | |
| cec5225b YZ |
10006 | ARCH_SIZE, /* Arch size. */ |
| 10007 | LOG_FILE_ALIGN, /* Log_file_align. */ | |
| 10008 | ELFCLASSNN, EV_CURRENT, | |
| 10009 | bfd_elfNN_write_out_phdrs, | |
| 10010 | bfd_elfNN_write_shdrs_and_ehdr, | |
| 10011 | bfd_elfNN_checksum_contents, | |
| 10012 | bfd_elfNN_write_relocs, | |
| 10013 | bfd_elfNN_swap_symbol_in, | |
| 10014 | bfd_elfNN_swap_symbol_out, | |
| 10015 | bfd_elfNN_slurp_reloc_table, | |
| 10016 | bfd_elfNN_slurp_symbol_table, | |
| 10017 | bfd_elfNN_swap_dyn_in, | |
| 10018 | bfd_elfNN_swap_dyn_out, | |
| 10019 | bfd_elfNN_swap_reloc_in, | |
| 10020 | bfd_elfNN_swap_reloc_out, | |
| 10021 | bfd_elfNN_swap_reloca_in, | |
| 10022 | bfd_elfNN_swap_reloca_out | |
| a06ea964 NC |
10023 | }; |
| 10024 | ||
| 10025 | #define ELF_ARCH bfd_arch_aarch64 | |
| 10026 | #define ELF_MACHINE_CODE EM_AARCH64 | |
| 10027 | #define ELF_MAXPAGESIZE 0x10000 | |
| 10028 | #define ELF_MINPAGESIZE 0x1000 | |
| 10029 | #define ELF_COMMONPAGESIZE 0x1000 | |
| 10030 | ||
| 07d6d2b8 | 10031 | #define bfd_elfNN_close_and_cleanup \ |
| cec5225b | 10032 | elfNN_aarch64_close_and_cleanup |
| a06ea964 | 10033 | |
| 07d6d2b8 | 10034 | #define bfd_elfNN_bfd_free_cached_info \ |
| cec5225b | 10035 | elfNN_aarch64_bfd_free_cached_info |
| a06ea964 | 10036 | |
| cec5225b YZ |
10037 | #define bfd_elfNN_bfd_is_target_special_symbol \ |
| 10038 | elfNN_aarch64_is_target_special_symbol | |
| a06ea964 | 10039 | |
| 07d6d2b8 | 10040 | #define bfd_elfNN_bfd_link_hash_table_create \ |
| cec5225b | 10041 | elfNN_aarch64_link_hash_table_create |
| a06ea964 | 10042 | |
| cec5225b YZ |
10043 | #define bfd_elfNN_bfd_merge_private_bfd_data \ |
| 10044 | elfNN_aarch64_merge_private_bfd_data | |
| a06ea964 | 10045 | |
| cec5225b YZ |
10046 | #define bfd_elfNN_bfd_print_private_bfd_data \ |
| 10047 | elfNN_aarch64_print_private_bfd_data | |
| a06ea964 | 10048 | |
| cec5225b YZ |
10049 | #define bfd_elfNN_bfd_reloc_type_lookup \ |
| 10050 | elfNN_aarch64_reloc_type_lookup | |
| a06ea964 | 10051 | |
| cec5225b YZ |
10052 | #define bfd_elfNN_bfd_reloc_name_lookup \ |
| 10053 | elfNN_aarch64_reloc_name_lookup | |
| a06ea964 | 10054 | |
| cec5225b YZ |
10055 | #define bfd_elfNN_bfd_set_private_flags \ |
| 10056 | elfNN_aarch64_set_private_flags | |
| a06ea964 | 10057 | |
| cec5225b YZ |
10058 | #define bfd_elfNN_find_inliner_info \ |
| 10059 | elfNN_aarch64_find_inliner_info | |
| a06ea964 | 10060 | |
| 37c18eed SD |
10061 | #define bfd_elfNN_get_synthetic_symtab \ |
| 10062 | elfNN_aarch64_get_synthetic_symtab | |
| 10063 | ||
| cec5225b YZ |
10064 | #define bfd_elfNN_mkobject \ |
| 10065 | elfNN_aarch64_mkobject | |
| a06ea964 | 10066 | |
| cec5225b YZ |
10067 | #define bfd_elfNN_new_section_hook \ |
| 10068 | elfNN_aarch64_new_section_hook | |
| a06ea964 NC |
10069 | |
| 10070 | #define elf_backend_adjust_dynamic_symbol \ | |
| cec5225b | 10071 | elfNN_aarch64_adjust_dynamic_symbol |
| a06ea964 NC |
10072 | |
| 10073 | #define elf_backend_always_size_sections \ | |
| cec5225b | 10074 | elfNN_aarch64_always_size_sections |
| a06ea964 NC |
10075 | |
| 10076 | #define elf_backend_check_relocs \ | |
| cec5225b | 10077 | elfNN_aarch64_check_relocs |
| a06ea964 NC |
10078 | |
| 10079 | #define elf_backend_copy_indirect_symbol \ | |
| cec5225b | 10080 | elfNN_aarch64_copy_indirect_symbol |
| a06ea964 | 10081 | |
| 823710d5 SN |
10082 | #define elf_backend_merge_symbol_attribute \ |
| 10083 | elfNN_aarch64_merge_symbol_attribute | |
| 10084 | ||
| a06ea964 NC |
10085 | /* Create .dynbss, and .rela.bss sections in DYNOBJ, and set up shortcuts |
| 10086 | to them in our hash. */ | |
| 10087 | #define elf_backend_create_dynamic_sections \ | |
| cec5225b | 10088 | elfNN_aarch64_create_dynamic_sections |
| a06ea964 NC |
10089 | |
| 10090 | #define elf_backend_init_index_section \ | |
| 10091 | _bfd_elf_init_2_index_sections | |
| 10092 | ||
| a06ea964 | 10093 | #define elf_backend_finish_dynamic_sections \ |
| cec5225b | 10094 | elfNN_aarch64_finish_dynamic_sections |
| a06ea964 NC |
10095 | |
| 10096 | #define elf_backend_finish_dynamic_symbol \ | |
| cec5225b | 10097 | elfNN_aarch64_finish_dynamic_symbol |
| a06ea964 | 10098 | |
| a06ea964 | 10099 | #define elf_backend_object_p \ |
| cec5225b | 10100 | elfNN_aarch64_object_p |
| a06ea964 | 10101 | |
| 07d6d2b8 | 10102 | #define elf_backend_output_arch_local_syms \ |
| cec5225b | 10103 | elfNN_aarch64_output_arch_local_syms |
| a06ea964 | 10104 | |
| e7679060 AM |
10105 | #define elf_backend_maybe_function_sym \ |
| 10106 | elfNN_aarch64_maybe_function_sym | |
| 10107 | ||
| a06ea964 | 10108 | #define elf_backend_plt_sym_val \ |
| cec5225b | 10109 | elfNN_aarch64_plt_sym_val |
| a06ea964 | 10110 | |
| ed7e9d0b AM |
10111 | #define elf_backend_init_file_header \ |
| 10112 | elfNN_aarch64_init_file_header | |
| a06ea964 NC |
10113 | |
| 10114 | #define elf_backend_relocate_section \ | |
| cec5225b | 10115 | elfNN_aarch64_relocate_section |
| a06ea964 NC |
10116 | |
| 10117 | #define elf_backend_reloc_type_class \ | |
| cec5225b | 10118 | elfNN_aarch64_reloc_type_class |
| a06ea964 | 10119 | |
| a06ea964 | 10120 | #define elf_backend_section_from_shdr \ |
| cec5225b | 10121 | elfNN_aarch64_section_from_shdr |
| a06ea964 NC |
10122 | |
| 10123 | #define elf_backend_size_dynamic_sections \ | |
| cec5225b | 10124 | elfNN_aarch64_size_dynamic_sections |
| a06ea964 NC |
10125 | |
| 10126 | #define elf_backend_size_info \ | |
| cec5225b | 10127 | elfNN_aarch64_size_info |
| a06ea964 | 10128 | |
| 68fcca92 JW |
10129 | #define elf_backend_write_section \ |
| 10130 | elfNN_aarch64_write_section | |
| 10131 | ||
| d691934d NC |
10132 | #define elf_backend_symbol_processing \ |
| 10133 | elfNN_aarch64_backend_symbol_processing | |
| 10134 | ||
| cd702818 SD |
10135 | #define elf_backend_setup_gnu_properties \ |
| 10136 | elfNN_aarch64_link_setup_gnu_properties | |
| 10137 | ||
| 10138 | #define elf_backend_merge_gnu_properties \ | |
| 10139 | elfNN_aarch64_merge_gnu_properties | |
| 10140 | ||
| a06ea964 | 10141 | #define elf_backend_can_refcount 1 |
| 59c108f7 | 10142 | #define elf_backend_can_gc_sections 1 |
| a06ea964 NC |
10143 | #define elf_backend_plt_readonly 1 |
| 10144 | #define elf_backend_want_got_plt 1 | |
| 10145 | #define elf_backend_want_plt_sym 0 | |
| 5474d94f | 10146 | #define elf_backend_want_dynrelro 1 |
| a06ea964 NC |
10147 | #define elf_backend_may_use_rel_p 0 |
| 10148 | #define elf_backend_may_use_rela_p 1 | |
| 10149 | #define elf_backend_default_use_rela_p 1 | |
| 07d6d2b8 | 10150 | #define elf_backend_rela_normal 1 |
| 64f52338 | 10151 | #define elf_backend_dtrel_excludes_plt 1 |
| a06ea964 | 10152 | #define elf_backend_got_header_size (GOT_ENTRY_SIZE * 3) |
| c495064d | 10153 | #define elf_backend_default_execstack 0 |
| 32f573bc | 10154 | #define elf_backend_extern_protected_data 1 |
| 7f784814 | 10155 | #define elf_backend_hash_symbol elf_aarch64_hash_symbol |
| a06ea964 | 10156 | |
| 07d6d2b8 | 10157 | #undef elf_backend_obj_attrs_section |
| a06ea964 NC |
10158 | #define elf_backend_obj_attrs_section ".ARM.attributes" |
| 10159 | ||
| cec5225b | 10160 | #include "elfNN-target.h" |
| a75cf613 ES |
10161 | |
| 10162 | /* CloudABI support. */ | |
| 10163 | ||
| 10164 | #undef TARGET_LITTLE_SYM | |
| 10165 | #define TARGET_LITTLE_SYM aarch64_elfNN_le_cloudabi_vec | |
| 10166 | #undef TARGET_LITTLE_NAME | |
| 10167 | #define TARGET_LITTLE_NAME "elfNN-littleaarch64-cloudabi" | |
| 10168 | #undef TARGET_BIG_SYM | |
| 10169 | #define TARGET_BIG_SYM aarch64_elfNN_be_cloudabi_vec | |
| 10170 | #undef TARGET_BIG_NAME | |
| 10171 | #define TARGET_BIG_NAME "elfNN-bigaarch64-cloudabi" | |
| 10172 | ||
| 10173 | #undef ELF_OSABI | |
| 10174 | #define ELF_OSABI ELFOSABI_CLOUDABI | |
| 10175 | ||
| 10176 | #undef elfNN_bed | |
| 10177 | #define elfNN_bed elfNN_aarch64_cloudabi_bed | |
| 10178 | ||
| 10179 | #include "elfNN-target.h" |