projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| cec5225b | 1 | /* AArch64-specific support for NN-bit ELF. |
| 82704155 | 2 | Copyright (C) 2009-2019 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" |
| a06ea964 | 147 | |
| cec5225b YZ |
148 | #define ARCH_SIZE NN |
| 149 | ||
| 150 | #if ARCH_SIZE == 64 | |
| 151 | #define AARCH64_R(NAME) R_AARCH64_ ## NAME | |
| 152 | #define AARCH64_R_STR(NAME) "R_AARCH64_" #NAME | |
| a6bb11b2 YZ |
153 | #define HOWTO64(...) HOWTO (__VA_ARGS__) |
| 154 | #define HOWTO32(...) EMPTY_HOWTO (0) | |
| cec5225b | 155 | #define LOG_FILE_ALIGN 3 |
| f955cccf | 156 | #define BFD_RELOC_AARCH64_TLSDESC_LD64_LO12_NC BFD_RELOC_AARCH64_TLSDESC_LD64_LO12 |
| cec5225b YZ |
157 | #endif |
| 158 | ||
| 159 | #if ARCH_SIZE == 32 | |
| 160 | #define AARCH64_R(NAME) R_AARCH64_P32_ ## NAME | |
| 161 | #define AARCH64_R_STR(NAME) "R_AARCH64_P32_" #NAME | |
| a6bb11b2 YZ |
162 | #define HOWTO64(...) EMPTY_HOWTO (0) |
| 163 | #define HOWTO32(...) HOWTO (__VA_ARGS__) | |
| cec5225b | 164 | #define LOG_FILE_ALIGN 2 |
| 07d6d2b8 AM |
165 | #define BFD_RELOC_AARCH64_TLSDESC_LD32_LO12 BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC |
| 166 | #define R_AARCH64_P32_TLSDESC_ADD_LO12 R_AARCH64_P32_TLSDESC_ADD_LO12_NC | |
| cec5225b YZ |
167 | #endif |
| 168 | ||
| a6bb11b2 | 169 | #define IS_AARCH64_TLS_RELOC(R_TYPE) \ |
| 4c0a9a6f JW |
170 | ((R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC \ |
| 171 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21 \ | |
| 3c12b054 | 172 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PREL21 \ |
| 3e8286c0 | 173 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC \ |
| 1aa66fb1 | 174 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G1 \ |
| a6bb11b2 | 175 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 \ |
| a6bb11b2 | 176 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC \ |
| 4c0a9a6f | 177 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC \ |
| a6bb11b2 | 178 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19 \ |
| 4c0a9a6f JW |
179 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC \ |
| 180 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1 \ | |
| 6ffe9a1b | 181 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12 \ |
| 40fbed84 | 182 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12 \ |
| 753999c1 | 183 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC \ |
| 73f925cc | 184 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC \ |
| f69e4920 | 185 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21 \ |
| 77a69ff8 | 186 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21 \ |
| 07c9aa07 JW |
187 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12 \ |
| 188 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC \ | |
| 189 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12 \ | |
| 190 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC \ | |
| 191 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12 \ | |
| 192 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC \ | |
| 193 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12 \ | |
| 194 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC \ | |
| 6ffe9a1b JW |
195 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0 \ |
| 196 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC \ | |
| 197 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1 \ | |
| 198 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC \ | |
| 199 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2 \ | |
| a6bb11b2 | 200 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12 \ |
| 4c0a9a6f | 201 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12 \ |
| a6bb11b2 | 202 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC \ |
| e04ef022 RL |
203 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12 \ |
| 204 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12_NC \ | |
| 205 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12 \ | |
| 206 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12_NC \ | |
| 207 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12 \ | |
| 208 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12_NC \ | |
| 209 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12 \ | |
| 210 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12_NC \ | |
| a6bb11b2 YZ |
211 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0 \ |
| 212 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC \ | |
| 4c0a9a6f JW |
213 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 \ |
| 214 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC \ | |
| 215 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2 \ | |
| a6bb11b2 YZ |
216 | || (R_TYPE) == BFD_RELOC_AARCH64_TLS_DTPMOD \ |
| 217 | || (R_TYPE) == BFD_RELOC_AARCH64_TLS_DTPREL \ | |
| 218 | || (R_TYPE) == BFD_RELOC_AARCH64_TLS_TPREL \ | |
| a06ea964 NC |
219 | || IS_AARCH64_TLSDESC_RELOC ((R_TYPE))) |
| 220 | ||
| 9331eea1 | 221 | #define IS_AARCH64_TLS_RELAX_RELOC(R_TYPE) \ |
| f955cccf NC |
222 | ((R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD \ |
| 223 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD_LO12 \ | |
| 4af68b9c JW |
224 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21 \ |
| 225 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21 \ | |
| 226 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_CALL \ | |
| 227 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD_PREL19 \ | |
| 228 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC \ | |
| 0484b454 RL |
229 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDR \ |
| 230 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC \ | |
| 231 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G1 \ | |
| 232 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDR \ | |
| 4af68b9c | 233 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21 \ |
| 9331eea1 JW |
234 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADR_PREL21 \ |
| 235 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC \ | |
| ac734732 RL |
236 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC \ |
| 237 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSGD_MOVW_G1 \ | |
| 9331eea1 JW |
238 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 \ |
| 239 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19 \ | |
| 240 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC \ | |
| 259364ad JW |
241 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC \ |
| 242 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21 \ | |
| 4af68b9c | 243 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21) |
| 9331eea1 | 244 | |
| a6bb11b2 | 245 | #define IS_AARCH64_TLSDESC_RELOC(R_TYPE) \ |
| 4c0a9a6f JW |
246 | ((R_TYPE) == BFD_RELOC_AARCH64_TLSDESC \ |
| 247 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD \ | |
| f955cccf | 248 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADD_LO12 \ |
| a6bb11b2 | 249 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21 \ |
| 389b8029 | 250 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21 \ |
| 4c0a9a6f | 251 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_CALL \ |
| a6bb11b2 | 252 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC \ |
| f955cccf | 253 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD64_LO12 \ |
| a6bb11b2 | 254 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LDR \ |
| 4c0a9a6f JW |
255 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_LD_PREL19 \ |
| 256 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC \ | |
| 257 | || (R_TYPE) == BFD_RELOC_AARCH64_TLSDESC_OFF_G1) | |
| a06ea964 | 258 | |
| 6353d82b | 259 | #define ELIMINATE_COPY_RELOCS 1 |
| a06ea964 | 260 | |
| a06ea964 | 261 | /* Return size of a relocation entry. HTAB is the bfd's |
| cec5225b YZ |
262 | elf_aarch64_link_hash_entry. */ |
| 263 | #define RELOC_SIZE(HTAB) (sizeof (ElfNN_External_Rela)) | |
| a06ea964 | 264 | |
| cec5225b | 265 | /* GOT Entry size - 8 bytes in ELF64 and 4 bytes in ELF32. */ |
| 07d6d2b8 AM |
266 | #define GOT_ENTRY_SIZE (ARCH_SIZE / 8) |
| 267 | #define PLT_ENTRY_SIZE (32) | |
| 268 | #define PLT_SMALL_ENTRY_SIZE (16) | |
| 269 | #define PLT_TLSDESC_ENTRY_SIZE (32) | |
| 37c18eed | 270 | /* PLT sizes with BTI insn. */ |
| 68bb0359 | 271 | #define PLT_BTI_SMALL_ENTRY_SIZE (24) |
| 1dbade74 | 272 | /* PLT sizes with PAC insn. */ |
| 68bb0359 | 273 | #define PLT_PAC_SMALL_ENTRY_SIZE (24) |
| 1dbade74 | 274 | /* PLT sizes with BTI and PAC insn. */ |
| 1dbade74 | 275 | #define PLT_BTI_PAC_SMALL_ENTRY_SIZE (24) |
| a06ea964 | 276 | |
| 2d0ca824 | 277 | /* Encoding of the nop instruction. */ |
| a06ea964 NC |
278 | #define INSN_NOP 0xd503201f |
| 279 | ||
| 280 | #define aarch64_compute_jump_table_size(htab) \ | |
| 281 | (((htab)->root.srelplt == NULL) ? 0 \ | |
| 282 | : (htab)->root.srelplt->reloc_count * GOT_ENTRY_SIZE) | |
| 283 | ||
| 284 | /* The first entry in a procedure linkage table looks like this | |
| 285 | if the distance between the PLTGOT and the PLT is < 4GB use | |
| 286 | these PLT entries. Note that the dynamic linker gets &PLTGOT[2] | |
| 287 | in x16 and needs to work out PLTGOT[1] by using an address of | |
| cec5225b YZ |
288 | [x16,#-GOT_ENTRY_SIZE]. */ |
| 289 | static const bfd_byte elfNN_aarch64_small_plt0_entry[PLT_ENTRY_SIZE] = | |
| a06ea964 NC |
290 | { |
| 291 | 0xf0, 0x7b, 0xbf, 0xa9, /* stp x16, x30, [sp, #-16]! */ | |
| 292 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, (GOT+16) */ | |
| caed7120 | 293 | #if ARCH_SIZE == 64 |
| a06ea964 NC |
294 | 0x11, 0x0A, 0x40, 0xf9, /* ldr x17, [x16, #PLT_GOT+0x10] */ |
| 295 | 0x10, 0x42, 0x00, 0x91, /* add x16, x16,#PLT_GOT+0x10 */ | |
| caed7120 YZ |
296 | #else |
| 297 | 0x11, 0x0A, 0x40, 0xb9, /* ldr w17, [x16, #PLT_GOT+0x8] */ | |
| 298 | 0x10, 0x22, 0x00, 0x11, /* add w16, w16,#PLT_GOT+0x8 */ | |
| 299 | #endif | |
| a06ea964 NC |
300 | 0x20, 0x02, 0x1f, 0xd6, /* br x17 */ |
| 301 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 302 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 303 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 304 | }; | |
| 305 | ||
| 68bb0359 | 306 | static const bfd_byte elfNN_aarch64_small_plt0_bti_entry[PLT_ENTRY_SIZE] = |
| 37c18eed SD |
307 | { |
| 308 | 0x5f, 0x24, 0x03, 0xd5, /* bti c. */ | |
| 309 | 0xf0, 0x7b, 0xbf, 0xa9, /* stp x16, x30, [sp, #-16]! */ | |
| 310 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, (GOT+16) */ | |
| 311 | #if ARCH_SIZE == 64 | |
| 312 | 0x11, 0x0A, 0x40, 0xf9, /* ldr x17, [x16, #PLT_GOT+0x10] */ | |
| 313 | 0x10, 0x42, 0x00, 0x91, /* add x16, x16,#PLT_GOT+0x10 */ | |
| 314 | #else | |
| 315 | 0x11, 0x0A, 0x40, 0xb9, /* ldr w17, [x16, #PLT_GOT+0x8] */ | |
| 316 | 0x10, 0x22, 0x00, 0x11, /* add w16, w16,#PLT_GOT+0x8 */ | |
| 317 | #endif | |
| 318 | 0x20, 0x02, 0x1f, 0xd6, /* br x17 */ | |
| 319 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 320 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 1dbade74 SD |
321 | }; |
| 322 | ||
| a06ea964 NC |
323 | /* Per function entry in a procedure linkage table looks like this |
| 324 | if the distance between the PLTGOT and the PLT is < 4GB use | |
| 37c18eed | 325 | these PLT entries. Use BTI versions of the PLTs when enabled. */ |
| cec5225b | 326 | static const bfd_byte elfNN_aarch64_small_plt_entry[PLT_SMALL_ENTRY_SIZE] = |
| a06ea964 NC |
327 | { |
| 328 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, PLTGOT + n * 8 */ | |
| caed7120 | 329 | #if ARCH_SIZE == 64 |
| a06ea964 NC |
330 | 0x11, 0x02, 0x40, 0xf9, /* ldr x17, [x16, PLTGOT + n * 8] */ |
| 331 | 0x10, 0x02, 0x00, 0x91, /* add x16, x16, :lo12:PLTGOT + n * 8 */ | |
| caed7120 YZ |
332 | #else |
| 333 | 0x11, 0x02, 0x40, 0xb9, /* ldr w17, [x16, PLTGOT + n * 4] */ | |
| 334 | 0x10, 0x02, 0x00, 0x11, /* add w16, w16, :lo12:PLTGOT + n * 4 */ | |
| 335 | #endif | |
| a06ea964 NC |
336 | 0x20, 0x02, 0x1f, 0xd6, /* br x17. */ |
| 337 | }; | |
| 338 | ||
| 37c18eed SD |
339 | static const bfd_byte |
| 340 | elfNN_aarch64_small_plt_bti_entry[PLT_BTI_SMALL_ENTRY_SIZE] = | |
| 341 | { | |
| 342 | 0x5f, 0x24, 0x03, 0xd5, /* bti c. */ | |
| 343 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, PLTGOT + n * 8 */ | |
| 344 | #if ARCH_SIZE == 64 | |
| 345 | 0x11, 0x02, 0x40, 0xf9, /* ldr x17, [x16, PLTGOT + n * 8] */ | |
| 346 | 0x10, 0x02, 0x00, 0x91, /* add x16, x16, :lo12:PLTGOT + n * 8 */ | |
| 347 | #else | |
| 348 | 0x11, 0x02, 0x40, 0xb9, /* ldr w17, [x16, PLTGOT + n * 4] */ | |
| 349 | 0x10, 0x02, 0x00, 0x11, /* add w16, w16, :lo12:PLTGOT + n * 4 */ | |
| 350 | #endif | |
| 351 | 0x20, 0x02, 0x1f, 0xd6, /* br x17. */ | |
| 68bb0359 | 352 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ |
| 37c18eed SD |
353 | }; |
| 354 | ||
| 1dbade74 SD |
355 | static const bfd_byte |
| 356 | elfNN_aarch64_small_plt_pac_entry[PLT_PAC_SMALL_ENTRY_SIZE] = | |
| 357 | { | |
| 358 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, PLTGOT + n * 8 */ | |
| 359 | #if ARCH_SIZE == 64 | |
| 360 | 0x11, 0x02, 0x40, 0xf9, /* ldr x17, [x16, PLTGOT + n * 8] */ | |
| 361 | 0x10, 0x02, 0x00, 0x91, /* add x16, x16, :lo12:PLTGOT + n * 8 */ | |
| 362 | #else | |
| 363 | 0x11, 0x02, 0x40, 0xb9, /* ldr w17, [x16, PLTGOT + n * 4] */ | |
| 364 | 0x10, 0x02, 0x00, 0x11, /* add w16, w16, :lo12:PLTGOT + n * 4 */ | |
| 365 | #endif | |
| 366 | 0x9f, 0x21, 0x03, 0xd5, /* autia1716 */ | |
| 367 | 0x20, 0x02, 0x1f, 0xd6, /* br x17. */ | |
| 68bb0359 | 368 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ |
| 1dbade74 SD |
369 | }; |
| 370 | ||
| 371 | static const bfd_byte | |
| 372 | elfNN_aarch64_small_plt_bti_pac_entry[PLT_BTI_PAC_SMALL_ENTRY_SIZE] = | |
| 373 | { | |
| 374 | 0x5f, 0x24, 0x03, 0xd5, /* bti c. */ | |
| 375 | 0x10, 0x00, 0x00, 0x90, /* adrp x16, PLTGOT + n * 8 */ | |
| 376 | #if ARCH_SIZE == 64 | |
| 377 | 0x11, 0x02, 0x40, 0xf9, /* ldr x17, [x16, PLTGOT + n * 8] */ | |
| 378 | 0x10, 0x02, 0x00, 0x91, /* add x16, x16, :lo12:PLTGOT + n * 8 */ | |
| 379 | #else | |
| 380 | 0x11, 0x02, 0x40, 0xb9, /* ldr w17, [x16, PLTGOT + n * 4] */ | |
| 381 | 0x10, 0x02, 0x00, 0x11, /* add w16, w16, :lo12:PLTGOT + n * 4 */ | |
| 382 | #endif | |
| 383 | 0x9f, 0x21, 0x03, 0xd5, /* autia1716 */ | |
| 384 | 0x20, 0x02, 0x1f, 0xd6, /* br x17. */ | |
| 385 | }; | |
| 386 | ||
| a06ea964 | 387 | static const bfd_byte |
| cec5225b | 388 | elfNN_aarch64_tlsdesc_small_plt_entry[PLT_TLSDESC_ENTRY_SIZE] = |
| a06ea964 NC |
389 | { |
| 390 | 0xe2, 0x0f, 0xbf, 0xa9, /* stp x2, x3, [sp, #-16]! */ | |
| 391 | 0x02, 0x00, 0x00, 0x90, /* adrp x2, 0 */ | |
| 392 | 0x03, 0x00, 0x00, 0x90, /* adrp x3, 0 */ | |
| caed7120 YZ |
393 | #if ARCH_SIZE == 64 |
| 394 | 0x42, 0x00, 0x40, 0xf9, /* ldr x2, [x2, #0] */ | |
| a06ea964 | 395 | 0x63, 0x00, 0x00, 0x91, /* add x3, x3, 0 */ |
| caed7120 YZ |
396 | #else |
| 397 | 0x42, 0x00, 0x40, 0xb9, /* ldr w2, [x2, #0] */ | |
| 398 | 0x63, 0x00, 0x00, 0x11, /* add w3, w3, 0 */ | |
| 399 | #endif | |
| 400 | 0x40, 0x00, 0x1f, 0xd6, /* br x2 */ | |
| a06ea964 NC |
401 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ |
| 402 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 403 | }; | |
| 404 | ||
| 37c18eed | 405 | static const bfd_byte |
| 68bb0359 | 406 | elfNN_aarch64_tlsdesc_small_plt_bti_entry[PLT_TLSDESC_ENTRY_SIZE] = |
| 37c18eed SD |
407 | { |
| 408 | 0x5f, 0x24, 0x03, 0xd5, /* bti c. */ | |
| 409 | 0xe2, 0x0f, 0xbf, 0xa9, /* stp x2, x3, [sp, #-16]! */ | |
| 410 | 0x02, 0x00, 0x00, 0x90, /* adrp x2, 0 */ | |
| 411 | 0x03, 0x00, 0x00, 0x90, /* adrp x3, 0 */ | |
| 412 | #if ARCH_SIZE == 64 | |
| 413 | 0x42, 0x00, 0x40, 0xf9, /* ldr x2, [x2, #0] */ | |
| 414 | 0x63, 0x00, 0x00, 0x91, /* add x3, x3, 0 */ | |
| 415 | #else | |
| 416 | 0x42, 0x00, 0x40, 0xb9, /* ldr w2, [x2, #0] */ | |
| 417 | 0x63, 0x00, 0x00, 0x11, /* add w3, w3, 0 */ | |
| 418 | #endif | |
| 419 | 0x40, 0x00, 0x1f, 0xd6, /* br x2 */ | |
| 420 | 0x1f, 0x20, 0x03, 0xd5, /* nop */ | |
| 37c18eed SD |
421 | }; |
| 422 | ||
| 07d6d2b8 AM |
423 | #define elf_info_to_howto elfNN_aarch64_info_to_howto |
| 424 | #define elf_info_to_howto_rel elfNN_aarch64_info_to_howto | |
| a06ea964 NC |
425 | |
| 426 | #define AARCH64_ELF_ABI_VERSION 0 | |
| a06ea964 NC |
427 | |
| 428 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */ | |
| 429 | #define ALL_ONES (~ (bfd_vma) 0) | |
| 430 | ||
| a6bb11b2 YZ |
431 | /* Indexed by the bfd interal reloc enumerators. |
| 432 | Therefore, the table needs to be synced with BFD_RELOC_AARCH64_* | |
| 433 | in reloc.c. */ | |
| a06ea964 | 434 | |
| a6bb11b2 | 435 | static reloc_howto_type elfNN_aarch64_howto_table[] = |
| a06ea964 | 436 | { |
| a6bb11b2 | 437 | EMPTY_HOWTO (0), |
| a06ea964 | 438 | |
| a6bb11b2 | 439 | /* Basic data relocations. */ |
| a06ea964 | 440 | |
| b7f28d87 JW |
441 | /* Deprecated, but retained for backwards compatibility. */ |
| 442 | HOWTO64 (R_AARCH64_NULL, /* type */ | |
| a06ea964 | 443 | 0, /* rightshift */ |
| 6346d5ca | 444 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| a6bb11b2 | 445 | 0, /* bitsize */ |
| a06ea964 NC |
446 | FALSE, /* pc_relative */ |
| 447 | 0, /* bitpos */ | |
| 448 | complain_overflow_dont, /* complain_on_overflow */ | |
| 449 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 450 | "R_AARCH64_NULL", /* name */ |
| a06ea964 NC |
451 | FALSE, /* partial_inplace */ |
| 452 | 0, /* src_mask */ | |
| a6bb11b2 | 453 | 0, /* dst_mask */ |
| a06ea964 | 454 | FALSE), /* pcrel_offset */ |
| a6bb11b2 | 455 | HOWTO (R_AARCH64_NONE, /* type */ |
| a06ea964 | 456 | 0, /* rightshift */ |
| 6346d5ca | 457 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| a06ea964 NC |
458 | 0, /* bitsize */ |
| 459 | FALSE, /* pc_relative */ | |
| 460 | 0, /* bitpos */ | |
| 461 | complain_overflow_dont, /* complain_on_overflow */ | |
| 462 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 463 | "R_AARCH64_NONE", /* name */ |
| a06ea964 NC |
464 | FALSE, /* partial_inplace */ |
| 465 | 0, /* src_mask */ | |
| 466 | 0, /* dst_mask */ | |
| 467 | FALSE), /* pcrel_offset */ | |
| 468 | ||
| 469 | /* .xword: (S+A) */ | |
| a6bb11b2 | 470 | HOWTO64 (AARCH64_R (ABS64), /* type */ |
| a06ea964 NC |
471 | 0, /* rightshift */ |
| 472 | 4, /* size (4 = long long) */ | |
| 473 | 64, /* bitsize */ | |
| 474 | FALSE, /* pc_relative */ | |
| 475 | 0, /* bitpos */ | |
| 476 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 477 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 478 | AARCH64_R_STR (ABS64), /* name */ |
| a06ea964 NC |
479 | FALSE, /* partial_inplace */ |
| 480 | ALL_ONES, /* src_mask */ | |
| 481 | ALL_ONES, /* dst_mask */ | |
| 482 | FALSE), /* pcrel_offset */ | |
| 483 | ||
| 484 | /* .word: (S+A) */ | |
| a6bb11b2 | 485 | HOWTO (AARCH64_R (ABS32), /* type */ |
| a06ea964 NC |
486 | 0, /* rightshift */ |
| 487 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 488 | 32, /* bitsize */ | |
| 489 | FALSE, /* pc_relative */ | |
| 490 | 0, /* bitpos */ | |
| 491 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 492 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 493 | AARCH64_R_STR (ABS32), /* name */ |
| a06ea964 NC |
494 | FALSE, /* partial_inplace */ |
| 495 | 0xffffffff, /* src_mask */ | |
| 496 | 0xffffffff, /* dst_mask */ | |
| 497 | FALSE), /* pcrel_offset */ | |
| 498 | ||
| 499 | /* .half: (S+A) */ | |
| a6bb11b2 | 500 | HOWTO (AARCH64_R (ABS16), /* type */ |
| a06ea964 NC |
501 | 0, /* rightshift */ |
| 502 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 503 | 16, /* bitsize */ | |
| 504 | FALSE, /* pc_relative */ | |
| 505 | 0, /* bitpos */ | |
| 506 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 507 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 508 | AARCH64_R_STR (ABS16), /* name */ |
| a06ea964 NC |
509 | FALSE, /* partial_inplace */ |
| 510 | 0xffff, /* src_mask */ | |
| 511 | 0xffff, /* dst_mask */ | |
| 512 | FALSE), /* pcrel_offset */ | |
| 513 | ||
| 514 | /* .xword: (S+A-P) */ | |
| a6bb11b2 | 515 | HOWTO64 (AARCH64_R (PREL64), /* type */ |
| a06ea964 NC |
516 | 0, /* rightshift */ |
| 517 | 4, /* size (4 = long long) */ | |
| 518 | 64, /* bitsize */ | |
| 519 | TRUE, /* pc_relative */ | |
| 520 | 0, /* bitpos */ | |
| 521 | complain_overflow_signed, /* complain_on_overflow */ | |
| 522 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 523 | AARCH64_R_STR (PREL64), /* name */ |
| a06ea964 NC |
524 | FALSE, /* partial_inplace */ |
| 525 | ALL_ONES, /* src_mask */ | |
| 526 | ALL_ONES, /* dst_mask */ | |
| 527 | TRUE), /* pcrel_offset */ | |
| 528 | ||
| 529 | /* .word: (S+A-P) */ | |
| a6bb11b2 | 530 | HOWTO (AARCH64_R (PREL32), /* type */ |
| a06ea964 NC |
531 | 0, /* rightshift */ |
| 532 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 533 | 32, /* bitsize */ | |
| 534 | TRUE, /* pc_relative */ | |
| 535 | 0, /* bitpos */ | |
| 536 | complain_overflow_signed, /* complain_on_overflow */ | |
| 537 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 538 | AARCH64_R_STR (PREL32), /* name */ |
| a06ea964 NC |
539 | FALSE, /* partial_inplace */ |
| 540 | 0xffffffff, /* src_mask */ | |
| 541 | 0xffffffff, /* dst_mask */ | |
| 542 | TRUE), /* pcrel_offset */ | |
| 543 | ||
| 544 | /* .half: (S+A-P) */ | |
| a6bb11b2 | 545 | HOWTO (AARCH64_R (PREL16), /* type */ |
| a06ea964 NC |
546 | 0, /* rightshift */ |
| 547 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 548 | 16, /* bitsize */ | |
| 549 | TRUE, /* pc_relative */ | |
| 550 | 0, /* bitpos */ | |
| 551 | complain_overflow_signed, /* complain_on_overflow */ | |
| 552 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 553 | AARCH64_R_STR (PREL16), /* name */ |
| a06ea964 NC |
554 | FALSE, /* partial_inplace */ |
| 555 | 0xffff, /* src_mask */ | |
| 556 | 0xffff, /* dst_mask */ | |
| 557 | TRUE), /* pcrel_offset */ | |
| 558 | ||
| 559 | /* Group relocations to create a 16, 32, 48 or 64 bit | |
| 560 | unsigned data or abs address inline. */ | |
| 561 | ||
| 562 | /* MOVZ: ((S+A) >> 0) & 0xffff */ | |
| a6bb11b2 | 563 | HOWTO (AARCH64_R (MOVW_UABS_G0), /* type */ |
| a06ea964 NC |
564 | 0, /* rightshift */ |
| 565 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 566 | 16, /* bitsize */ | |
| 567 | FALSE, /* pc_relative */ | |
| 568 | 0, /* bitpos */ | |
| 569 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 570 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 571 | AARCH64_R_STR (MOVW_UABS_G0), /* name */ |
| a06ea964 NC |
572 | FALSE, /* partial_inplace */ |
| 573 | 0xffff, /* src_mask */ | |
| 574 | 0xffff, /* dst_mask */ | |
| 575 | FALSE), /* pcrel_offset */ | |
| 576 | ||
| 577 | /* MOVK: ((S+A) >> 0) & 0xffff [no overflow check] */ | |
| a6bb11b2 | 578 | HOWTO (AARCH64_R (MOVW_UABS_G0_NC), /* type */ |
| a06ea964 NC |
579 | 0, /* rightshift */ |
| 580 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 581 | 16, /* bitsize */ | |
| 582 | FALSE, /* pc_relative */ | |
| 583 | 0, /* bitpos */ | |
| 584 | complain_overflow_dont, /* complain_on_overflow */ | |
| 585 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 586 | AARCH64_R_STR (MOVW_UABS_G0_NC), /* name */ |
| a06ea964 NC |
587 | FALSE, /* partial_inplace */ |
| 588 | 0xffff, /* src_mask */ | |
| 589 | 0xffff, /* dst_mask */ | |
| 590 | FALSE), /* pcrel_offset */ | |
| 591 | ||
| 592 | /* MOVZ: ((S+A) >> 16) & 0xffff */ | |
| a6bb11b2 | 593 | HOWTO (AARCH64_R (MOVW_UABS_G1), /* type */ |
| a06ea964 NC |
594 | 16, /* rightshift */ |
| 595 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 596 | 16, /* bitsize */ | |
| 597 | FALSE, /* pc_relative */ | |
| 598 | 0, /* bitpos */ | |
| 599 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 600 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 601 | AARCH64_R_STR (MOVW_UABS_G1), /* name */ |
| a06ea964 NC |
602 | FALSE, /* partial_inplace */ |
| 603 | 0xffff, /* src_mask */ | |
| 604 | 0xffff, /* dst_mask */ | |
| 605 | FALSE), /* pcrel_offset */ | |
| 606 | ||
| 607 | /* MOVK: ((S+A) >> 16) & 0xffff [no overflow check] */ | |
| a6bb11b2 | 608 | HOWTO64 (AARCH64_R (MOVW_UABS_G1_NC), /* type */ |
| a06ea964 NC |
609 | 16, /* rightshift */ |
| 610 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 611 | 16, /* bitsize */ | |
| 612 | FALSE, /* pc_relative */ | |
| 613 | 0, /* bitpos */ | |
| 614 | complain_overflow_dont, /* complain_on_overflow */ | |
| 615 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 616 | AARCH64_R_STR (MOVW_UABS_G1_NC), /* name */ |
| a06ea964 NC |
617 | FALSE, /* partial_inplace */ |
| 618 | 0xffff, /* src_mask */ | |
| 619 | 0xffff, /* dst_mask */ | |
| 620 | FALSE), /* pcrel_offset */ | |
| 621 | ||
| 622 | /* MOVZ: ((S+A) >> 32) & 0xffff */ | |
| a6bb11b2 | 623 | HOWTO64 (AARCH64_R (MOVW_UABS_G2), /* type */ |
| a06ea964 NC |
624 | 32, /* rightshift */ |
| 625 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 626 | 16, /* bitsize */ | |
| 627 | FALSE, /* pc_relative */ | |
| 628 | 0, /* bitpos */ | |
| 629 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 630 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 631 | AARCH64_R_STR (MOVW_UABS_G2), /* name */ |
| a06ea964 NC |
632 | FALSE, /* partial_inplace */ |
| 633 | 0xffff, /* src_mask */ | |
| 634 | 0xffff, /* dst_mask */ | |
| 635 | FALSE), /* pcrel_offset */ | |
| 636 | ||
| 637 | /* MOVK: ((S+A) >> 32) & 0xffff [no overflow check] */ | |
| a6bb11b2 | 638 | HOWTO64 (AARCH64_R (MOVW_UABS_G2_NC), /* type */ |
| a06ea964 NC |
639 | 32, /* rightshift */ |
| 640 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 641 | 16, /* bitsize */ | |
| 642 | FALSE, /* pc_relative */ | |
| 643 | 0, /* bitpos */ | |
| 644 | complain_overflow_dont, /* complain_on_overflow */ | |
| 645 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 646 | AARCH64_R_STR (MOVW_UABS_G2_NC), /* name */ |
| a06ea964 NC |
647 | FALSE, /* partial_inplace */ |
| 648 | 0xffff, /* src_mask */ | |
| 649 | 0xffff, /* dst_mask */ | |
| 650 | FALSE), /* pcrel_offset */ | |
| 651 | ||
| 652 | /* MOVZ: ((S+A) >> 48) & 0xffff */ | |
| a6bb11b2 | 653 | HOWTO64 (AARCH64_R (MOVW_UABS_G3), /* type */ |
| a06ea964 NC |
654 | 48, /* rightshift */ |
| 655 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 656 | 16, /* bitsize */ | |
| 657 | FALSE, /* pc_relative */ | |
| 658 | 0, /* bitpos */ | |
| 659 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 660 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 661 | AARCH64_R_STR (MOVW_UABS_G3), /* name */ |
| a06ea964 NC |
662 | FALSE, /* partial_inplace */ |
| 663 | 0xffff, /* src_mask */ | |
| 664 | 0xffff, /* dst_mask */ | |
| 665 | FALSE), /* pcrel_offset */ | |
| 666 | ||
| 667 | /* Group relocations to create high part of a 16, 32, 48 or 64 bit | |
| 668 | signed data or abs address inline. Will change instruction | |
| 669 | to MOVN or MOVZ depending on sign of calculated value. */ | |
| 670 | ||
| 671 | /* MOV[ZN]: ((S+A) >> 0) & 0xffff */ | |
| a6bb11b2 | 672 | HOWTO (AARCH64_R (MOVW_SABS_G0), /* type */ |
| a06ea964 NC |
673 | 0, /* rightshift */ |
| 674 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| c5e3a364 | 675 | 17, /* bitsize */ |
| a06ea964 NC |
676 | FALSE, /* pc_relative */ |
| 677 | 0, /* bitpos */ | |
| 678 | complain_overflow_signed, /* complain_on_overflow */ | |
| 679 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 680 | AARCH64_R_STR (MOVW_SABS_G0), /* name */ |
| a06ea964 NC |
681 | FALSE, /* partial_inplace */ |
| 682 | 0xffff, /* src_mask */ | |
| 683 | 0xffff, /* dst_mask */ | |
| 684 | FALSE), /* pcrel_offset */ | |
| 685 | ||
| 686 | /* MOV[ZN]: ((S+A) >> 16) & 0xffff */ | |
| a6bb11b2 | 687 | HOWTO64 (AARCH64_R (MOVW_SABS_G1), /* type */ |
| a06ea964 NC |
688 | 16, /* rightshift */ |
| 689 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| c5e3a364 | 690 | 17, /* bitsize */ |
| a06ea964 NC |
691 | FALSE, /* pc_relative */ |
| 692 | 0, /* bitpos */ | |
| 693 | complain_overflow_signed, /* complain_on_overflow */ | |
| 694 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 695 | AARCH64_R_STR (MOVW_SABS_G1), /* name */ |
| a06ea964 NC |
696 | FALSE, /* partial_inplace */ |
| 697 | 0xffff, /* src_mask */ | |
| 698 | 0xffff, /* dst_mask */ | |
| 699 | FALSE), /* pcrel_offset */ | |
| 700 | ||
| 701 | /* MOV[ZN]: ((S+A) >> 32) & 0xffff */ | |
| a6bb11b2 | 702 | HOWTO64 (AARCH64_R (MOVW_SABS_G2), /* type */ |
| a06ea964 NC |
703 | 32, /* rightshift */ |
| 704 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| c5e3a364 | 705 | 17, /* bitsize */ |
| a06ea964 NC |
706 | FALSE, /* pc_relative */ |
| 707 | 0, /* bitpos */ | |
| 708 | complain_overflow_signed, /* complain_on_overflow */ | |
| 709 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 710 | AARCH64_R_STR (MOVW_SABS_G2), /* name */ |
| a06ea964 NC |
711 | FALSE, /* partial_inplace */ |
| 712 | 0xffff, /* src_mask */ | |
| 713 | 0xffff, /* dst_mask */ | |
| 714 | FALSE), /* pcrel_offset */ | |
| 715 | ||
| 32247401 RL |
716 | /* Group relocations to create a 16, 32, 48 or 64 bit |
| 717 | PC relative address inline. */ | |
| 718 | ||
| 719 | /* MOV[NZ]: ((S+A-P) >> 0) & 0xffff */ | |
| e30d1fa1 | 720 | HOWTO (AARCH64_R (MOVW_PREL_G0), /* type */ |
| 32247401 RL |
721 | 0, /* rightshift */ |
| 722 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 723 | 17, /* bitsize */ | |
| 724 | TRUE, /* pc_relative */ | |
| 725 | 0, /* bitpos */ | |
| 726 | complain_overflow_signed, /* complain_on_overflow */ | |
| 727 | bfd_elf_generic_reloc, /* special_function */ | |
| 728 | AARCH64_R_STR (MOVW_PREL_G0), /* name */ | |
| 729 | FALSE, /* partial_inplace */ | |
| 730 | 0xffff, /* src_mask */ | |
| 731 | 0xffff, /* dst_mask */ | |
| 732 | TRUE), /* pcrel_offset */ | |
| 733 | ||
| 734 | /* MOVK: ((S+A-P) >> 0) & 0xffff [no overflow check] */ | |
| e30d1fa1 | 735 | HOWTO (AARCH64_R (MOVW_PREL_G0_NC), /* type */ |
| 32247401 RL |
736 | 0, /* rightshift */ |
| 737 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 738 | 16, /* bitsize */ | |
| 739 | TRUE, /* pc_relative */ | |
| 740 | 0, /* bitpos */ | |
| 741 | complain_overflow_dont, /* complain_on_overflow */ | |
| 742 | bfd_elf_generic_reloc, /* special_function */ | |
| 743 | AARCH64_R_STR (MOVW_PREL_G0_NC), /* name */ | |
| 744 | FALSE, /* partial_inplace */ | |
| 745 | 0xffff, /* src_mask */ | |
| 746 | 0xffff, /* dst_mask */ | |
| 747 | TRUE), /* pcrel_offset */ | |
| 748 | ||
| 749 | /* MOV[NZ]: ((S+A-P) >> 16) & 0xffff */ | |
| e30d1fa1 | 750 | HOWTO (AARCH64_R (MOVW_PREL_G1), /* type */ |
| 32247401 RL |
751 | 16, /* rightshift */ |
| 752 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 753 | 17, /* bitsize */ | |
| 754 | TRUE, /* pc_relative */ | |
| 755 | 0, /* bitpos */ | |
| 756 | complain_overflow_signed, /* complain_on_overflow */ | |
| 757 | bfd_elf_generic_reloc, /* special_function */ | |
| 758 | AARCH64_R_STR (MOVW_PREL_G1), /* name */ | |
| 759 | FALSE, /* partial_inplace */ | |
| 760 | 0xffff, /* src_mask */ | |
| 761 | 0xffff, /* dst_mask */ | |
| 762 | TRUE), /* pcrel_offset */ | |
| 763 | ||
| 764 | /* MOVK: ((S+A-P) >> 16) & 0xffff [no overflow check] */ | |
| 765 | HOWTO64 (AARCH64_R (MOVW_PREL_G1_NC), /* type */ | |
| 766 | 16, /* rightshift */ | |
| 767 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 768 | 16, /* bitsize */ | |
| 769 | TRUE, /* pc_relative */ | |
| 770 | 0, /* bitpos */ | |
| 771 | complain_overflow_dont, /* complain_on_overflow */ | |
| 772 | bfd_elf_generic_reloc, /* special_function */ | |
| 773 | AARCH64_R_STR (MOVW_PREL_G1_NC), /* name */ | |
| 774 | FALSE, /* partial_inplace */ | |
| 775 | 0xffff, /* src_mask */ | |
| 776 | 0xffff, /* dst_mask */ | |
| 777 | TRUE), /* pcrel_offset */ | |
| 778 | ||
| 779 | /* MOV[NZ]: ((S+A-P) >> 32) & 0xffff */ | |
| 780 | HOWTO64 (AARCH64_R (MOVW_PREL_G2), /* type */ | |
| 781 | 32, /* rightshift */ | |
| 782 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 783 | 17, /* bitsize */ | |
| 784 | TRUE, /* pc_relative */ | |
| 785 | 0, /* bitpos */ | |
| 786 | complain_overflow_signed, /* complain_on_overflow */ | |
| 787 | bfd_elf_generic_reloc, /* special_function */ | |
| 788 | AARCH64_R_STR (MOVW_PREL_G2), /* name */ | |
| 789 | FALSE, /* partial_inplace */ | |
| 790 | 0xffff, /* src_mask */ | |
| 791 | 0xffff, /* dst_mask */ | |
| 792 | TRUE), /* pcrel_offset */ | |
| 793 | ||
| 794 | /* MOVK: ((S+A-P) >> 32) & 0xffff [no overflow check] */ | |
| 795 | HOWTO64 (AARCH64_R (MOVW_PREL_G2_NC), /* type */ | |
| 796 | 32, /* rightshift */ | |
| 797 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 798 | 16, /* bitsize */ | |
| 799 | TRUE, /* pc_relative */ | |
| 800 | 0, /* bitpos */ | |
| 801 | complain_overflow_dont, /* complain_on_overflow */ | |
| 802 | bfd_elf_generic_reloc, /* special_function */ | |
| 803 | AARCH64_R_STR (MOVW_PREL_G2_NC), /* name */ | |
| 804 | FALSE, /* partial_inplace */ | |
| 805 | 0xffff, /* src_mask */ | |
| 806 | 0xffff, /* dst_mask */ | |
| 807 | TRUE), /* pcrel_offset */ | |
| 808 | ||
| 809 | /* MOV[NZ]: ((S+A-P) >> 48) & 0xffff */ | |
| 810 | HOWTO64 (AARCH64_R (MOVW_PREL_G3), /* type */ | |
| 811 | 48, /* rightshift */ | |
| 812 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 813 | 16, /* bitsize */ | |
| 814 | TRUE, /* pc_relative */ | |
| 815 | 0, /* bitpos */ | |
| 816 | complain_overflow_dont, /* complain_on_overflow */ | |
| 817 | bfd_elf_generic_reloc, /* special_function */ | |
| 818 | AARCH64_R_STR (MOVW_PREL_G3), /* name */ | |
| 819 | FALSE, /* partial_inplace */ | |
| 820 | 0xffff, /* src_mask */ | |
| 821 | 0xffff, /* dst_mask */ | |
| 822 | TRUE), /* pcrel_offset */ | |
| 823 | ||
| a06ea964 NC |
824 | /* Relocations to generate 19, 21 and 33 bit PC-relative load/store |
| 825 | addresses: PG(x) is (x & ~0xfff). */ | |
| 826 | ||
| 827 | /* LD-lit: ((S+A-P) >> 2) & 0x7ffff */ | |
| a6bb11b2 | 828 | HOWTO (AARCH64_R (LD_PREL_LO19), /* type */ |
| a06ea964 NC |
829 | 2, /* rightshift */ |
| 830 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 831 | 19, /* bitsize */ | |
| 832 | TRUE, /* pc_relative */ | |
| 833 | 0, /* bitpos */ | |
| 834 | complain_overflow_signed, /* complain_on_overflow */ | |
| 835 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 836 | AARCH64_R_STR (LD_PREL_LO19), /* name */ |
| a06ea964 NC |
837 | FALSE, /* partial_inplace */ |
| 838 | 0x7ffff, /* src_mask */ | |
| 839 | 0x7ffff, /* dst_mask */ | |
| 840 | TRUE), /* pcrel_offset */ | |
| 841 | ||
| 842 | /* ADR: (S+A-P) & 0x1fffff */ | |
| a6bb11b2 | 843 | HOWTO (AARCH64_R (ADR_PREL_LO21), /* type */ |
| a06ea964 NC |
844 | 0, /* rightshift */ |
| 845 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 846 | 21, /* bitsize */ | |
| 847 | TRUE, /* pc_relative */ | |
| 848 | 0, /* bitpos */ | |
| 849 | complain_overflow_signed, /* complain_on_overflow */ | |
| 850 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 851 | AARCH64_R_STR (ADR_PREL_LO21), /* name */ |
| a06ea964 NC |
852 | FALSE, /* partial_inplace */ |
| 853 | 0x1fffff, /* src_mask */ | |
| 854 | 0x1fffff, /* dst_mask */ | |
| 855 | TRUE), /* pcrel_offset */ | |
| 856 | ||
| 857 | /* ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ | |
| a6bb11b2 | 858 | HOWTO (AARCH64_R (ADR_PREL_PG_HI21), /* type */ |
| a06ea964 NC |
859 | 12, /* rightshift */ |
| 860 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 861 | 21, /* bitsize */ | |
| 862 | TRUE, /* pc_relative */ | |
| 863 | 0, /* bitpos */ | |
| 864 | complain_overflow_signed, /* complain_on_overflow */ | |
| 865 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 866 | AARCH64_R_STR (ADR_PREL_PG_HI21), /* name */ |
| a06ea964 NC |
867 | FALSE, /* partial_inplace */ |
| 868 | 0x1fffff, /* src_mask */ | |
| 869 | 0x1fffff, /* dst_mask */ | |
| 870 | TRUE), /* pcrel_offset */ | |
| 871 | ||
| 872 | /* ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff [no overflow check] */ | |
| a6bb11b2 | 873 | HOWTO64 (AARCH64_R (ADR_PREL_PG_HI21_NC), /* type */ |
| a06ea964 NC |
874 | 12, /* rightshift */ |
| 875 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 876 | 21, /* bitsize */ | |
| 877 | TRUE, /* pc_relative */ | |
| 878 | 0, /* bitpos */ | |
| 879 | complain_overflow_dont, /* complain_on_overflow */ | |
| 880 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 881 | AARCH64_R_STR (ADR_PREL_PG_HI21_NC), /* name */ |
| a06ea964 NC |
882 | FALSE, /* partial_inplace */ |
| 883 | 0x1fffff, /* src_mask */ | |
| 884 | 0x1fffff, /* dst_mask */ | |
| 885 | TRUE), /* pcrel_offset */ | |
| 886 | ||
| 887 | /* ADD: (S+A) & 0xfff [no overflow check] */ | |
| a6bb11b2 | 888 | HOWTO (AARCH64_R (ADD_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
889 | 0, /* rightshift */ |
| 890 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 891 | 12, /* bitsize */ | |
| 892 | FALSE, /* pc_relative */ | |
| 893 | 10, /* bitpos */ | |
| 894 | complain_overflow_dont, /* complain_on_overflow */ | |
| 895 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 896 | AARCH64_R_STR (ADD_ABS_LO12_NC), /* name */ |
| a06ea964 NC |
897 | FALSE, /* partial_inplace */ |
| 898 | 0x3ffc00, /* src_mask */ | |
| 899 | 0x3ffc00, /* dst_mask */ | |
| 900 | FALSE), /* pcrel_offset */ | |
| 901 | ||
| 902 | /* LD/ST8: (S+A) & 0xfff */ | |
| a6bb11b2 | 903 | HOWTO (AARCH64_R (LDST8_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
904 | 0, /* rightshift */ |
| 905 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 906 | 12, /* bitsize */ | |
| 907 | FALSE, /* pc_relative */ | |
| 908 | 0, /* bitpos */ | |
| 909 | complain_overflow_dont, /* complain_on_overflow */ | |
| 910 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 911 | AARCH64_R_STR (LDST8_ABS_LO12_NC), /* name */ |
| a06ea964 NC |
912 | FALSE, /* partial_inplace */ |
| 913 | 0xfff, /* src_mask */ | |
| 914 | 0xfff, /* dst_mask */ | |
| 915 | FALSE), /* pcrel_offset */ | |
| 916 | ||
| 917 | /* Relocations for control-flow instructions. */ | |
| 918 | ||
| 919 | /* TBZ/NZ: ((S+A-P) >> 2) & 0x3fff */ | |
| a6bb11b2 | 920 | HOWTO (AARCH64_R (TSTBR14), /* type */ |
| a06ea964 NC |
921 | 2, /* rightshift */ |
| 922 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 923 | 14, /* bitsize */ | |
| 924 | TRUE, /* pc_relative */ | |
| 925 | 0, /* bitpos */ | |
| 926 | complain_overflow_signed, /* complain_on_overflow */ | |
| 927 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 928 | AARCH64_R_STR (TSTBR14), /* name */ |
| a06ea964 NC |
929 | FALSE, /* partial_inplace */ |
| 930 | 0x3fff, /* src_mask */ | |
| 931 | 0x3fff, /* dst_mask */ | |
| 932 | TRUE), /* pcrel_offset */ | |
| 933 | ||
| 934 | /* B.cond: ((S+A-P) >> 2) & 0x7ffff */ | |
| a6bb11b2 | 935 | HOWTO (AARCH64_R (CONDBR19), /* type */ |
| a06ea964 NC |
936 | 2, /* rightshift */ |
| 937 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 938 | 19, /* bitsize */ | |
| 939 | TRUE, /* pc_relative */ | |
| 940 | 0, /* bitpos */ | |
| 941 | complain_overflow_signed, /* complain_on_overflow */ | |
| 942 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 943 | AARCH64_R_STR (CONDBR19), /* name */ |
| a06ea964 NC |
944 | FALSE, /* partial_inplace */ |
| 945 | 0x7ffff, /* src_mask */ | |
| 946 | 0x7ffff, /* dst_mask */ | |
| 947 | TRUE), /* pcrel_offset */ | |
| 948 | ||
| a06ea964 | 949 | /* B: ((S+A-P) >> 2) & 0x3ffffff */ |
| a6bb11b2 | 950 | HOWTO (AARCH64_R (JUMP26), /* type */ |
| a06ea964 NC |
951 | 2, /* rightshift */ |
| 952 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 953 | 26, /* bitsize */ | |
| 954 | TRUE, /* pc_relative */ | |
| 955 | 0, /* bitpos */ | |
| 956 | complain_overflow_signed, /* complain_on_overflow */ | |
| 957 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 958 | AARCH64_R_STR (JUMP26), /* name */ |
| a06ea964 NC |
959 | FALSE, /* partial_inplace */ |
| 960 | 0x3ffffff, /* src_mask */ | |
| 961 | 0x3ffffff, /* dst_mask */ | |
| 962 | TRUE), /* pcrel_offset */ | |
| 963 | ||
| 964 | /* BL: ((S+A-P) >> 2) & 0x3ffffff */ | |
| a6bb11b2 | 965 | HOWTO (AARCH64_R (CALL26), /* type */ |
| a06ea964 NC |
966 | 2, /* rightshift */ |
| 967 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 968 | 26, /* bitsize */ | |
| 969 | TRUE, /* pc_relative */ | |
| 970 | 0, /* bitpos */ | |
| 971 | complain_overflow_signed, /* complain_on_overflow */ | |
| 972 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 973 | AARCH64_R_STR (CALL26), /* name */ |
| a06ea964 NC |
974 | FALSE, /* partial_inplace */ |
| 975 | 0x3ffffff, /* src_mask */ | |
| 976 | 0x3ffffff, /* dst_mask */ | |
| 977 | TRUE), /* pcrel_offset */ | |
| 978 | ||
| 979 | /* LD/ST16: (S+A) & 0xffe */ | |
| a6bb11b2 | 980 | HOWTO (AARCH64_R (LDST16_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
981 | 1, /* rightshift */ |
| 982 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 983 | 12, /* bitsize */ | |
| 984 | FALSE, /* pc_relative */ | |
| 985 | 0, /* bitpos */ | |
| 986 | complain_overflow_dont, /* complain_on_overflow */ | |
| 987 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 988 | AARCH64_R_STR (LDST16_ABS_LO12_NC), /* name */ |
| a06ea964 NC |
989 | FALSE, /* partial_inplace */ |
| 990 | 0xffe, /* src_mask */ | |
| 991 | 0xffe, /* dst_mask */ | |
| 992 | FALSE), /* pcrel_offset */ | |
| 993 | ||
| 994 | /* LD/ST32: (S+A) & 0xffc */ | |
| a6bb11b2 | 995 | HOWTO (AARCH64_R (LDST32_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
996 | 2, /* rightshift */ |
| 997 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 998 | 12, /* bitsize */ | |
| 999 | FALSE, /* pc_relative */ | |
| 1000 | 0, /* bitpos */ | |
| 1001 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1002 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1003 | AARCH64_R_STR (LDST32_ABS_LO12_NC), /* name */ |
| a06ea964 NC |
1004 | FALSE, /* partial_inplace */ |
| 1005 | 0xffc, /* src_mask */ | |
| 1006 | 0xffc, /* dst_mask */ | |
| 1007 | FALSE), /* pcrel_offset */ | |
| 1008 | ||
| 1009 | /* LD/ST64: (S+A) & 0xff8 */ | |
| a6bb11b2 | 1010 | HOWTO (AARCH64_R (LDST64_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
1011 | 3, /* rightshift */ |
| 1012 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1013 | 12, /* bitsize */ | |
| 1014 | FALSE, /* pc_relative */ | |
| 1015 | 0, /* bitpos */ | |
| 1016 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1017 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1018 | AARCH64_R_STR (LDST64_ABS_LO12_NC), /* name */ |
| a06ea964 NC |
1019 | FALSE, /* partial_inplace */ |
| 1020 | 0xff8, /* src_mask */ | |
| 1021 | 0xff8, /* dst_mask */ | |
| 1022 | FALSE), /* pcrel_offset */ | |
| 1023 | ||
| a06ea964 | 1024 | /* LD/ST128: (S+A) & 0xff0 */ |
| a6bb11b2 | 1025 | HOWTO (AARCH64_R (LDST128_ABS_LO12_NC), /* type */ |
| a06ea964 NC |
1026 | 4, /* rightshift */ |
| 1027 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1028 | 12, /* bitsize */ | |
| 1029 | FALSE, /* pc_relative */ | |
| 1030 | 0, /* bitpos */ | |
| 1031 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1032 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1033 | AARCH64_R_STR (LDST128_ABS_LO12_NC), /* name */ |
| a06ea964 NC |
1034 | FALSE, /* partial_inplace */ |
| 1035 | 0xff0, /* src_mask */ | |
| 1036 | 0xff0, /* dst_mask */ | |
| 1037 | FALSE), /* pcrel_offset */ | |
| 1038 | ||
| f41aef5f RE |
1039 | /* Set a load-literal immediate field to bits |
| 1040 | 0x1FFFFC of G(S)-P */ | |
| a6bb11b2 | 1041 | HOWTO (AARCH64_R (GOT_LD_PREL19), /* type */ |
| f41aef5f RE |
1042 | 2, /* rightshift */ |
| 1043 | 2, /* size (0 = byte,1 = short,2 = long) */ | |
| 1044 | 19, /* bitsize */ | |
| 1045 | TRUE, /* pc_relative */ | |
| 1046 | 0, /* bitpos */ | |
| 1047 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1048 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1049 | AARCH64_R_STR (GOT_LD_PREL19), /* name */ |
| f41aef5f RE |
1050 | FALSE, /* partial_inplace */ |
| 1051 | 0xffffe0, /* src_mask */ | |
| 1052 | 0xffffe0, /* dst_mask */ | |
| 1053 | TRUE), /* pcrel_offset */ | |
| 1054 | ||
| a06ea964 NC |
1055 | /* Get to the page for the GOT entry for the symbol |
| 1056 | (G(S) - P) using an ADRP instruction. */ | |
| a6bb11b2 | 1057 | HOWTO (AARCH64_R (ADR_GOT_PAGE), /* type */ |
| a06ea964 NC |
1058 | 12, /* rightshift */ |
| 1059 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1060 | 21, /* bitsize */ | |
| 1061 | TRUE, /* pc_relative */ | |
| 1062 | 0, /* bitpos */ | |
| 1063 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1064 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1065 | AARCH64_R_STR (ADR_GOT_PAGE), /* name */ |
| a06ea964 NC |
1066 | FALSE, /* partial_inplace */ |
| 1067 | 0x1fffff, /* src_mask */ | |
| 1068 | 0x1fffff, /* dst_mask */ | |
| 1069 | TRUE), /* pcrel_offset */ | |
| 1070 | ||
| a6bb11b2 YZ |
1071 | /* LD64: GOT offset G(S) & 0xff8 */ |
| 1072 | HOWTO64 (AARCH64_R (LD64_GOT_LO12_NC), /* type */ | |
| a06ea964 NC |
1073 | 3, /* rightshift */ |
| 1074 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1075 | 12, /* bitsize */ | |
| 1076 | FALSE, /* pc_relative */ | |
| 1077 | 0, /* bitpos */ | |
| 1078 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1079 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1080 | AARCH64_R_STR (LD64_GOT_LO12_NC), /* name */ |
| a06ea964 NC |
1081 | FALSE, /* partial_inplace */ |
| 1082 | 0xff8, /* src_mask */ | |
| 1083 | 0xff8, /* dst_mask */ | |
| a6bb11b2 | 1084 | FALSE), /* pcrel_offset */ |
| a06ea964 | 1085 | |
| a6bb11b2 YZ |
1086 | /* LD32: GOT offset G(S) & 0xffc */ |
| 1087 | HOWTO32 (AARCH64_R (LD32_GOT_LO12_NC), /* type */ | |
| 1088 | 2, /* rightshift */ | |
| 1089 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1090 | 12, /* bitsize */ | |
| 1091 | FALSE, /* pc_relative */ | |
| 1092 | 0, /* bitpos */ | |
| 1093 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1094 | bfd_elf_generic_reloc, /* special_function */ | |
| 1095 | AARCH64_R_STR (LD32_GOT_LO12_NC), /* name */ | |
| 1096 | FALSE, /* partial_inplace */ | |
| 1097 | 0xffc, /* src_mask */ | |
| 1098 | 0xffc, /* dst_mask */ | |
| 1099 | FALSE), /* pcrel_offset */ | |
| a06ea964 | 1100 | |
| ca632371 RL |
1101 | /* Lower 16 bits of GOT offset for the symbol. */ |
| 1102 | HOWTO64 (AARCH64_R (MOVW_GOTOFF_G0_NC), /* type */ | |
| 1103 | 0, /* rightshift */ | |
| 1104 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1105 | 16, /* bitsize */ | |
| 1106 | FALSE, /* pc_relative */ | |
| 1107 | 0, /* bitpos */ | |
| 1108 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1109 | bfd_elf_generic_reloc, /* special_function */ | |
| 1110 | AARCH64_R_STR (MOVW_GOTOFF_G0_NC), /* name */ | |
| 1111 | FALSE, /* partial_inplace */ | |
| 1112 | 0xffff, /* src_mask */ | |
| 1113 | 0xffff, /* dst_mask */ | |
| 1114 | FALSE), /* pcrel_offset */ | |
| 1115 | ||
| 654248e7 RL |
1116 | /* Higher 16 bits of GOT offset for the symbol. */ |
| 1117 | HOWTO64 (AARCH64_R (MOVW_GOTOFF_G1), /* type */ | |
| 1118 | 16, /* rightshift */ | |
| 1119 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1120 | 16, /* bitsize */ | |
| 1121 | FALSE, /* pc_relative */ | |
| 1122 | 0, /* bitpos */ | |
| 1123 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1124 | bfd_elf_generic_reloc, /* special_function */ | |
| 1125 | AARCH64_R_STR (MOVW_GOTOFF_G1), /* name */ | |
| 1126 | FALSE, /* partial_inplace */ | |
| 1127 | 0xffff, /* src_mask */ | |
| 1128 | 0xffff, /* dst_mask */ | |
| 1129 | FALSE), /* pcrel_offset */ | |
| 1130 | ||
| 87f5fbcc RL |
1131 | /* LD64: GOT offset for the symbol. */ |
| 1132 | HOWTO64 (AARCH64_R (LD64_GOTOFF_LO15), /* type */ | |
| 1133 | 3, /* rightshift */ | |
| 1134 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1135 | 12, /* bitsize */ | |
| 1136 | FALSE, /* pc_relative */ | |
| 1137 | 0, /* bitpos */ | |
| 1138 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1139 | bfd_elf_generic_reloc, /* special_function */ | |
| 1140 | AARCH64_R_STR (LD64_GOTOFF_LO15), /* name */ | |
| 1141 | FALSE, /* partial_inplace */ | |
| 1142 | 0x7ff8, /* src_mask */ | |
| 1143 | 0x7ff8, /* dst_mask */ | |
| 1144 | FALSE), /* pcrel_offset */ | |
| 1145 | ||
| 3d715ce4 JW |
1146 | /* LD32: GOT offset to the page address of GOT table. |
| 1147 | (G(S) - PAGE (_GLOBAL_OFFSET_TABLE_)) & 0x5ffc. */ | |
| 1148 | HOWTO32 (AARCH64_R (LD32_GOTPAGE_LO14), /* type */ | |
| 1149 | 2, /* rightshift */ | |
| 1150 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1151 | 12, /* bitsize */ | |
| 1152 | FALSE, /* pc_relative */ | |
| 1153 | 0, /* bitpos */ | |
| 1154 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1155 | bfd_elf_generic_reloc, /* special_function */ | |
| 1156 | AARCH64_R_STR (LD32_GOTPAGE_LO14), /* name */ | |
| 1157 | FALSE, /* partial_inplace */ | |
| 1158 | 0x5ffc, /* src_mask */ | |
| 1159 | 0x5ffc, /* dst_mask */ | |
| 1160 | FALSE), /* pcrel_offset */ | |
| 1161 | ||
| a921b5bd JW |
1162 | /* LD64: GOT offset to the page address of GOT table. |
| 1163 | (G(S) - PAGE (_GLOBAL_OFFSET_TABLE_)) & 0x7ff8. */ | |
| 1164 | HOWTO64 (AARCH64_R (LD64_GOTPAGE_LO15), /* type */ | |
| 1165 | 3, /* rightshift */ | |
| 1166 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1167 | 12, /* bitsize */ | |
| 1168 | FALSE, /* pc_relative */ | |
| 1169 | 0, /* bitpos */ | |
| 1170 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1171 | bfd_elf_generic_reloc, /* special_function */ | |
| 1172 | AARCH64_R_STR (LD64_GOTPAGE_LO15), /* name */ | |
| 1173 | FALSE, /* partial_inplace */ | |
| 1174 | 0x7ff8, /* src_mask */ | |
| 1175 | 0x7ff8, /* dst_mask */ | |
| 1176 | FALSE), /* pcrel_offset */ | |
| 1177 | ||
| a06ea964 NC |
1178 | /* Get to the page for the GOT entry for the symbol |
| 1179 | (G(S) - P) using an ADRP instruction. */ | |
| a6bb11b2 | 1180 | HOWTO (AARCH64_R (TLSGD_ADR_PAGE21), /* type */ |
| a06ea964 NC |
1181 | 12, /* rightshift */ |
| 1182 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1183 | 21, /* bitsize */ | |
| 1184 | TRUE, /* pc_relative */ | |
| 1185 | 0, /* bitpos */ | |
| 1186 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1187 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1188 | AARCH64_R_STR (TLSGD_ADR_PAGE21), /* name */ |
| a06ea964 NC |
1189 | FALSE, /* partial_inplace */ |
| 1190 | 0x1fffff, /* src_mask */ | |
| 1191 | 0x1fffff, /* dst_mask */ | |
| 1192 | TRUE), /* pcrel_offset */ | |
| 1193 | ||
| 3c12b054 MS |
1194 | HOWTO (AARCH64_R (TLSGD_ADR_PREL21), /* type */ |
| 1195 | 0, /* rightshift */ | |
| 1196 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1197 | 21, /* bitsize */ | |
| 1198 | TRUE, /* pc_relative */ | |
| 1199 | 0, /* bitpos */ | |
| 1200 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1201 | bfd_elf_generic_reloc, /* special_function */ | |
| 1202 | AARCH64_R_STR (TLSGD_ADR_PREL21), /* name */ | |
| 1203 | FALSE, /* partial_inplace */ | |
| 1204 | 0x1fffff, /* src_mask */ | |
| 1205 | 0x1fffff, /* dst_mask */ | |
| 1206 | TRUE), /* pcrel_offset */ | |
| 1207 | ||
| a06ea964 | 1208 | /* ADD: GOT offset G(S) & 0xff8 [no overflow check] */ |
| a6bb11b2 | 1209 | HOWTO (AARCH64_R (TLSGD_ADD_LO12_NC), /* type */ |
| a06ea964 NC |
1210 | 0, /* rightshift */ |
| 1211 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1212 | 12, /* bitsize */ | |
| 1213 | FALSE, /* pc_relative */ | |
| 1214 | 0, /* bitpos */ | |
| 1215 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1216 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1217 | AARCH64_R_STR (TLSGD_ADD_LO12_NC), /* name */ |
| a06ea964 NC |
1218 | FALSE, /* partial_inplace */ |
| 1219 | 0xfff, /* src_mask */ | |
| 1220 | 0xfff, /* dst_mask */ | |
| 1221 | FALSE), /* pcrel_offset */ | |
| 1222 | ||
| 3e8286c0 RL |
1223 | /* Lower 16 bits of GOT offset to tls_index. */ |
| 1224 | HOWTO64 (AARCH64_R (TLSGD_MOVW_G0_NC), /* type */ | |
| 1225 | 0, /* rightshift */ | |
| 1226 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1227 | 16, /* bitsize */ | |
| 1228 | FALSE, /* pc_relative */ | |
| 1229 | 0, /* bitpos */ | |
| 1230 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1231 | bfd_elf_generic_reloc, /* special_function */ | |
| 1232 | AARCH64_R_STR (TLSGD_MOVW_G0_NC), /* name */ | |
| 1233 | FALSE, /* partial_inplace */ | |
| 1234 | 0xffff, /* src_mask */ | |
| 1235 | 0xffff, /* dst_mask */ | |
| 1236 | FALSE), /* pcrel_offset */ | |
| 1237 | ||
| 1aa66fb1 RL |
1238 | /* Higher 16 bits of GOT offset to tls_index. */ |
| 1239 | HOWTO64 (AARCH64_R (TLSGD_MOVW_G1), /* type */ | |
| 1240 | 16, /* rightshift */ | |
| 1241 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1242 | 16, /* bitsize */ | |
| 1243 | FALSE, /* pc_relative */ | |
| 1244 | 0, /* bitpos */ | |
| 1245 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1246 | bfd_elf_generic_reloc, /* special_function */ | |
| 1247 | AARCH64_R_STR (TLSGD_MOVW_G1), /* name */ | |
| 1248 | FALSE, /* partial_inplace */ | |
| 1249 | 0xffff, /* src_mask */ | |
| 1250 | 0xffff, /* dst_mask */ | |
| 1251 | FALSE), /* pcrel_offset */ | |
| 1252 | ||
| a6bb11b2 | 1253 | HOWTO (AARCH64_R (TLSIE_ADR_GOTTPREL_PAGE21), /* type */ |
| a06ea964 NC |
1254 | 12, /* rightshift */ |
| 1255 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1256 | 21, /* bitsize */ | |
| 1257 | FALSE, /* pc_relative */ | |
| 1258 | 0, /* bitpos */ | |
| 1259 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1260 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1261 | AARCH64_R_STR (TLSIE_ADR_GOTTPREL_PAGE21), /* name */ |
| a06ea964 NC |
1262 | FALSE, /* partial_inplace */ |
| 1263 | 0x1fffff, /* src_mask */ | |
| 1264 | 0x1fffff, /* dst_mask */ | |
| 1265 | FALSE), /* pcrel_offset */ | |
| 1266 | ||
| a6bb11b2 | 1267 | HOWTO64 (AARCH64_R (TLSIE_LD64_GOTTPREL_LO12_NC), /* type */ |
| a06ea964 NC |
1268 | 3, /* rightshift */ |
| 1269 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1270 | 12, /* bitsize */ | |
| 1271 | FALSE, /* pc_relative */ | |
| 1272 | 0, /* bitpos */ | |
| 1273 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1274 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1275 | AARCH64_R_STR (TLSIE_LD64_GOTTPREL_LO12_NC), /* name */ |
| a06ea964 NC |
1276 | FALSE, /* partial_inplace */ |
| 1277 | 0xff8, /* src_mask */ | |
| 1278 | 0xff8, /* dst_mask */ | |
| 1279 | FALSE), /* pcrel_offset */ | |
| 1280 | ||
| a6bb11b2 YZ |
1281 | HOWTO32 (AARCH64_R (TLSIE_LD32_GOTTPREL_LO12_NC), /* type */ |
| 1282 | 2, /* rightshift */ | |
| 1283 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1284 | 12, /* bitsize */ | |
| 1285 | FALSE, /* pc_relative */ | |
| 1286 | 0, /* bitpos */ | |
| 1287 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1288 | bfd_elf_generic_reloc, /* special_function */ | |
| 1289 | AARCH64_R_STR (TLSIE_LD32_GOTTPREL_LO12_NC), /* name */ | |
| 1290 | FALSE, /* partial_inplace */ | |
| 1291 | 0xffc, /* src_mask */ | |
| 1292 | 0xffc, /* dst_mask */ | |
| 1293 | FALSE), /* pcrel_offset */ | |
| 1294 | ||
| 1295 | HOWTO (AARCH64_R (TLSIE_LD_GOTTPREL_PREL19), /* type */ | |
| bb3f9ed8 | 1296 | 2, /* rightshift */ |
| a06ea964 | 1297 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 043bf05a | 1298 | 19, /* bitsize */ |
| a06ea964 NC |
1299 | FALSE, /* pc_relative */ |
| 1300 | 0, /* bitpos */ | |
| 1301 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1302 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1303 | AARCH64_R_STR (TLSIE_LD_GOTTPREL_PREL19), /* name */ |
| a06ea964 NC |
1304 | FALSE, /* partial_inplace */ |
| 1305 | 0x1ffffc, /* src_mask */ | |
| 1306 | 0x1ffffc, /* dst_mask */ | |
| 1307 | FALSE), /* pcrel_offset */ | |
| 1308 | ||
| 3b957e5b RL |
1309 | HOWTO64 (AARCH64_R (TLSIE_MOVW_GOTTPREL_G0_NC), /* type */ |
| 1310 | 0, /* rightshift */ | |
| 1311 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1312 | 16, /* bitsize */ | |
| 1313 | FALSE, /* pc_relative */ | |
| 1314 | 0, /* bitpos */ | |
| 1315 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1316 | bfd_elf_generic_reloc, /* special_function */ | |
| 1317 | AARCH64_R_STR (TLSIE_MOVW_GOTTPREL_G0_NC), /* name */ | |
| 1318 | FALSE, /* partial_inplace */ | |
| 1319 | 0xffff, /* src_mask */ | |
| 1320 | 0xffff, /* dst_mask */ | |
| 1321 | FALSE), /* pcrel_offset */ | |
| 1322 | ||
| 1323 | HOWTO64 (AARCH64_R (TLSIE_MOVW_GOTTPREL_G1), /* type */ | |
| 1324 | 16, /* rightshift */ | |
| 1325 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1326 | 16, /* bitsize */ | |
| 1327 | FALSE, /* pc_relative */ | |
| 1328 | 0, /* bitpos */ | |
| 1329 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1330 | bfd_elf_generic_reloc, /* special_function */ | |
| 1331 | AARCH64_R_STR (TLSIE_MOVW_GOTTPREL_G1), /* name */ | |
| 1332 | FALSE, /* partial_inplace */ | |
| 1333 | 0xffff, /* src_mask */ | |
| 1334 | 0xffff, /* dst_mask */ | |
| 1335 | FALSE), /* pcrel_offset */ | |
| 1336 | ||
| 49df5539 JW |
1337 | /* ADD: bit[23:12] of byte offset to module TLS base address. */ |
| 1338 | HOWTO (AARCH64_R (TLSLD_ADD_DTPREL_HI12), /* type */ | |
| 1339 | 12, /* rightshift */ | |
| 1340 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1341 | 12, /* bitsize */ | |
| 1342 | FALSE, /* pc_relative */ | |
| 1343 | 0, /* bitpos */ | |
| 1344 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1345 | bfd_elf_generic_reloc, /* special_function */ | |
| 1346 | AARCH64_R_STR (TLSLD_ADD_DTPREL_HI12), /* name */ | |
| 1347 | FALSE, /* partial_inplace */ | |
| 1348 | 0xfff, /* src_mask */ | |
| 1349 | 0xfff, /* dst_mask */ | |
| 1350 | FALSE), /* pcrel_offset */ | |
| 1351 | ||
| 70151fb5 JW |
1352 | /* Unsigned 12 bit byte offset to module TLS base address. */ |
| 1353 | HOWTO (AARCH64_R (TLSLD_ADD_DTPREL_LO12), /* type */ | |
| 1354 | 0, /* rightshift */ | |
| 1355 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1356 | 12, /* bitsize */ | |
| 1357 | FALSE, /* pc_relative */ | |
| 1358 | 0, /* bitpos */ | |
| 1359 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1360 | bfd_elf_generic_reloc, /* special_function */ | |
| 1361 | AARCH64_R_STR (TLSLD_ADD_DTPREL_LO12), /* name */ | |
| 1362 | FALSE, /* partial_inplace */ | |
| 1363 | 0xfff, /* src_mask */ | |
| 1364 | 0xfff, /* dst_mask */ | |
| 1365 | FALSE), /* pcrel_offset */ | |
| 13289c10 JW |
1366 | |
| 1367 | /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12. */ | |
| 1368 | HOWTO (AARCH64_R (TLSLD_ADD_DTPREL_LO12_NC), /* type */ | |
| 1369 | 0, /* rightshift */ | |
| 1370 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1371 | 12, /* bitsize */ | |
| 1372 | FALSE, /* pc_relative */ | |
| 1373 | 0, /* bitpos */ | |
| 1374 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1375 | bfd_elf_generic_reloc, /* special_function */ | |
| 1376 | AARCH64_R_STR (TLSLD_ADD_DTPREL_LO12_NC), /* name */ | |
| 1377 | FALSE, /* partial_inplace */ | |
| 1378 | 0xfff, /* src_mask */ | |
| 1379 | 0xfff, /* dst_mask */ | |
| 1380 | FALSE), /* pcrel_offset */ | |
| 70151fb5 | 1381 | |
| a12fad50 JW |
1382 | /* ADD: GOT offset G(S) & 0xff8 [no overflow check] */ |
| 1383 | HOWTO (AARCH64_R (TLSLD_ADD_LO12_NC), /* type */ | |
| 1384 | 0, /* rightshift */ | |
| 1385 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1386 | 12, /* bitsize */ | |
| 1387 | FALSE, /* pc_relative */ | |
| 1388 | 0, /* bitpos */ | |
| 1389 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1390 | bfd_elf_generic_reloc, /* special_function */ | |
| 1391 | AARCH64_R_STR (TLSLD_ADD_LO12_NC), /* name */ | |
| 1392 | FALSE, /* partial_inplace */ | |
| 1393 | 0xfff, /* src_mask */ | |
| 1394 | 0xfff, /* dst_mask */ | |
| 1395 | FALSE), /* pcrel_offset */ | |
| 1396 | ||
| 1107e076 JW |
1397 | /* Get to the page for the GOT entry for the symbol |
| 1398 | (G(S) - P) using an ADRP instruction. */ | |
| 1399 | HOWTO (AARCH64_R (TLSLD_ADR_PAGE21), /* type */ | |
| 1400 | 12, /* rightshift */ | |
| 1401 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1402 | 21, /* bitsize */ | |
| 1403 | TRUE, /* pc_relative */ | |
| 1404 | 0, /* bitpos */ | |
| 1405 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1406 | bfd_elf_generic_reloc, /* special_function */ | |
| 1407 | AARCH64_R_STR (TLSLD_ADR_PAGE21), /* name */ | |
| 1408 | FALSE, /* partial_inplace */ | |
| 1409 | 0x1fffff, /* src_mask */ | |
| 1410 | 0x1fffff, /* dst_mask */ | |
| 1411 | TRUE), /* pcrel_offset */ | |
| 1412 | ||
| 6c37fedc JW |
1413 | HOWTO (AARCH64_R (TLSLD_ADR_PREL21), /* type */ |
| 1414 | 0, /* rightshift */ | |
| 1415 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1416 | 21, /* bitsize */ | |
| 1417 | TRUE, /* pc_relative */ | |
| 1418 | 0, /* bitpos */ | |
| 1419 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1420 | bfd_elf_generic_reloc, /* special_function */ | |
| 1421 | AARCH64_R_STR (TLSLD_ADR_PREL21), /* name */ | |
| 1422 | FALSE, /* partial_inplace */ | |
| 1423 | 0x1fffff, /* src_mask */ | |
| 1424 | 0x1fffff, /* dst_mask */ | |
| 1425 | TRUE), /* pcrel_offset */ | |
| 1426 | ||
| 4c562523 JW |
1427 | /* LD/ST16: bit[11:1] of byte offset to module TLS base address. */ |
| 1428 | HOWTO64 (AARCH64_R (TLSLD_LDST16_DTPREL_LO12), /* type */ | |
| 1429 | 1, /* rightshift */ | |
| 1430 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1431 | 11, /* bitsize */ | |
| 1432 | FALSE, /* pc_relative */ | |
| 1433 | 10, /* bitpos */ | |
| 1434 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1435 | bfd_elf_generic_reloc, /* special_function */ | |
| 1436 | AARCH64_R_STR (TLSLD_LDST16_DTPREL_LO12), /* name */ | |
| 1437 | FALSE, /* partial_inplace */ | |
| 1438 | 0x1ffc00, /* src_mask */ | |
| 1439 | 0x1ffc00, /* dst_mask */ | |
| 1440 | FALSE), /* pcrel_offset */ | |
| 1441 | ||
| 1442 | /* Same as BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12, but no overflow check. */ | |
| 1443 | HOWTO64 (AARCH64_R (TLSLD_LDST16_DTPREL_LO12_NC), /* type */ | |
| 1444 | 1, /* rightshift */ | |
| 1445 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1446 | 11, /* bitsize */ | |
| 1447 | FALSE, /* pc_relative */ | |
| 1448 | 10, /* bitpos */ | |
| 1449 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1450 | bfd_elf_generic_reloc, /* special_function */ | |
| 1451 | AARCH64_R_STR (TLSLD_LDST16_DTPREL_LO12_NC), /* name */ | |
| 1452 | FALSE, /* partial_inplace */ | |
| 1453 | 0x1ffc00, /* src_mask */ | |
| 1454 | 0x1ffc00, /* dst_mask */ | |
| 1455 | FALSE), /* pcrel_offset */ | |
| 1456 | ||
| 1457 | /* LD/ST32: bit[11:2] of byte offset to module TLS base address. */ | |
| 1458 | HOWTO64 (AARCH64_R (TLSLD_LDST32_DTPREL_LO12), /* type */ | |
| 1459 | 2, /* rightshift */ | |
| 1460 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1461 | 10, /* bitsize */ | |
| 1462 | FALSE, /* pc_relative */ | |
| 1463 | 10, /* bitpos */ | |
| 1464 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1465 | bfd_elf_generic_reloc, /* special_function */ | |
| 1466 | AARCH64_R_STR (TLSLD_LDST32_DTPREL_LO12), /* name */ | |
| 1467 | FALSE, /* partial_inplace */ | |
| 1468 | 0x3ffc00, /* src_mask */ | |
| 1469 | 0x3ffc00, /* dst_mask */ | |
| 1470 | FALSE), /* pcrel_offset */ | |
| 1471 | ||
| 1472 | /* Same as BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12, but no overflow check. */ | |
| 1473 | HOWTO64 (AARCH64_R (TLSLD_LDST32_DTPREL_LO12_NC), /* type */ | |
| 1474 | 2, /* rightshift */ | |
| 1475 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1476 | 10, /* bitsize */ | |
| 1477 | FALSE, /* pc_relative */ | |
| 1478 | 10, /* bitpos */ | |
| 1479 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1480 | bfd_elf_generic_reloc, /* special_function */ | |
| 1481 | AARCH64_R_STR (TLSLD_LDST32_DTPREL_LO12_NC), /* name */ | |
| 1482 | FALSE, /* partial_inplace */ | |
| 1483 | 0xffc00, /* src_mask */ | |
| 1484 | 0xffc00, /* dst_mask */ | |
| 1485 | FALSE), /* pcrel_offset */ | |
| 1486 | ||
| 1487 | /* LD/ST64: bit[11:3] of byte offset to module TLS base address. */ | |
| 1488 | HOWTO64 (AARCH64_R (TLSLD_LDST64_DTPREL_LO12), /* type */ | |
| 1489 | 3, /* rightshift */ | |
| 1490 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1491 | 9, /* bitsize */ | |
| 1492 | FALSE, /* pc_relative */ | |
| 1493 | 10, /* bitpos */ | |
| 1494 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1495 | bfd_elf_generic_reloc, /* special_function */ | |
| 1496 | AARCH64_R_STR (TLSLD_LDST64_DTPREL_LO12), /* name */ | |
| 1497 | FALSE, /* partial_inplace */ | |
| 1498 | 0x3ffc00, /* src_mask */ | |
| 1499 | 0x3ffc00, /* dst_mask */ | |
| 1500 | FALSE), /* pcrel_offset */ | |
| 1501 | ||
| 1502 | /* Same as BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12, but no overflow check. */ | |
| 1503 | HOWTO64 (AARCH64_R (TLSLD_LDST64_DTPREL_LO12_NC), /* type */ | |
| 1504 | 3, /* rightshift */ | |
| 1505 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1506 | 9, /* bitsize */ | |
| 1507 | FALSE, /* pc_relative */ | |
| 1508 | 10, /* bitpos */ | |
| 1509 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1510 | bfd_elf_generic_reloc, /* special_function */ | |
| 1511 | AARCH64_R_STR (TLSLD_LDST64_DTPREL_LO12_NC), /* name */ | |
| 1512 | FALSE, /* partial_inplace */ | |
| 1513 | 0x7fc00, /* src_mask */ | |
| 1514 | 0x7fc00, /* dst_mask */ | |
| 1515 | FALSE), /* pcrel_offset */ | |
| 1516 | ||
| 1517 | /* LD/ST8: bit[11:0] of byte offset to module TLS base address. */ | |
| 1518 | HOWTO64 (AARCH64_R (TLSLD_LDST8_DTPREL_LO12), /* type */ | |
| 1519 | 0, /* rightshift */ | |
| 1520 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1521 | 12, /* bitsize */ | |
| 1522 | FALSE, /* pc_relative */ | |
| 1523 | 10, /* bitpos */ | |
| 1524 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1525 | bfd_elf_generic_reloc, /* special_function */ | |
| 1526 | AARCH64_R_STR (TLSLD_LDST8_DTPREL_LO12), /* name */ | |
| 1527 | FALSE, /* partial_inplace */ | |
| 1528 | 0x3ffc00, /* src_mask */ | |
| 1529 | 0x3ffc00, /* dst_mask */ | |
| 1530 | FALSE), /* pcrel_offset */ | |
| 1531 | ||
| 1532 | /* Same as BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12, but no overflow check. */ | |
| 1533 | HOWTO64 (AARCH64_R (TLSLD_LDST8_DTPREL_LO12_NC), /* type */ | |
| 1534 | 0, /* rightshift */ | |
| 1535 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1536 | 12, /* bitsize */ | |
| 1537 | FALSE, /* pc_relative */ | |
| 1538 | 10, /* bitpos */ | |
| 1539 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1540 | bfd_elf_generic_reloc, /* special_function */ | |
| 1541 | AARCH64_R_STR (TLSLD_LDST8_DTPREL_LO12_NC), /* name */ | |
| 1542 | FALSE, /* partial_inplace */ | |
| 1543 | 0x3ffc00, /* src_mask */ | |
| 1544 | 0x3ffc00, /* dst_mask */ | |
| 1545 | FALSE), /* pcrel_offset */ | |
| 1546 | ||
| 49df5539 JW |
1547 | /* MOVZ: bit[15:0] of byte offset to module TLS base address. */ |
| 1548 | HOWTO (AARCH64_R (TLSLD_MOVW_DTPREL_G0), /* type */ | |
| 1549 | 0, /* rightshift */ | |
| 1550 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1551 | 16, /* bitsize */ | |
| 1552 | FALSE, /* pc_relative */ | |
| 1553 | 0, /* bitpos */ | |
| 1554 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1555 | bfd_elf_generic_reloc, /* special_function */ | |
| 1556 | AARCH64_R_STR (TLSLD_MOVW_DTPREL_G0), /* name */ | |
| 1557 | FALSE, /* partial_inplace */ | |
| 1558 | 0xffff, /* src_mask */ | |
| 1559 | 0xffff, /* dst_mask */ | |
| 1560 | FALSE), /* pcrel_offset */ | |
| 1561 | ||
| 1562 | /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0. */ | |
| 1563 | HOWTO (AARCH64_R (TLSLD_MOVW_DTPREL_G0_NC), /* type */ | |
| 1564 | 0, /* rightshift */ | |
| 1565 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1566 | 16, /* bitsize */ | |
| 1567 | FALSE, /* pc_relative */ | |
| 1568 | 0, /* bitpos */ | |
| 1569 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1570 | bfd_elf_generic_reloc, /* special_function */ | |
| 1571 | AARCH64_R_STR (TLSLD_MOVW_DTPREL_G0_NC), /* name */ | |
| 1572 | FALSE, /* partial_inplace */ | |
| 1573 | 0xffff, /* src_mask */ | |
| 1574 | 0xffff, /* dst_mask */ | |
| 1575 | FALSE), /* pcrel_offset */ | |
| 1576 | ||
| 1577 | /* MOVZ: bit[31:16] of byte offset to module TLS base address. */ | |
| 1578 | HOWTO (AARCH64_R (TLSLD_MOVW_DTPREL_G1), /* type */ | |
| 1579 | 16, /* rightshift */ | |
| 1580 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1581 | 16, /* bitsize */ | |
| 1582 | FALSE, /* pc_relative */ | |
| 1583 | 0, /* bitpos */ | |
| 1584 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1585 | bfd_elf_generic_reloc, /* special_function */ | |
| 1586 | AARCH64_R_STR (TLSLD_MOVW_DTPREL_G1), /* name */ | |
| 1587 | FALSE, /* partial_inplace */ | |
| 1588 | 0xffff, /* src_mask */ | |
| 1589 | 0xffff, /* dst_mask */ | |
| 1590 | FALSE), /* pcrel_offset */ | |
| 1591 | ||
| 1592 | /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1. */ | |
| 1593 | HOWTO64 (AARCH64_R (TLSLD_MOVW_DTPREL_G1_NC), /* type */ | |
| 1594 | 16, /* rightshift */ | |
| 1595 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1596 | 16, /* bitsize */ | |
| 1597 | FALSE, /* pc_relative */ | |
| 1598 | 0, /* bitpos */ | |
| 1599 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1600 | bfd_elf_generic_reloc, /* special_function */ | |
| 1601 | AARCH64_R_STR (TLSLD_MOVW_DTPREL_G1_NC), /* name */ | |
| 1602 | FALSE, /* partial_inplace */ | |
| 1603 | 0xffff, /* src_mask */ | |
| 1604 | 0xffff, /* dst_mask */ | |
| 1605 | FALSE), /* pcrel_offset */ | |
| 1606 | ||
| 1607 | /* MOVZ: bit[47:32] of byte offset to module TLS base address. */ | |
| 1608 | HOWTO64 (AARCH64_R (TLSLD_MOVW_DTPREL_G2), /* type */ | |
| 1609 | 32, /* rightshift */ | |
| 1610 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1611 | 16, /* bitsize */ | |
| 1612 | FALSE, /* pc_relative */ | |
| 1613 | 0, /* bitpos */ | |
| 1614 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1615 | bfd_elf_generic_reloc, /* special_function */ | |
| 1616 | AARCH64_R_STR (TLSLD_MOVW_DTPREL_G2), /* name */ | |
| 1617 | FALSE, /* partial_inplace */ | |
| 1618 | 0xffff, /* src_mask */ | |
| 1619 | 0xffff, /* dst_mask */ | |
| 1620 | FALSE), /* pcrel_offset */ | |
| 1621 | ||
| a6bb11b2 | 1622 | HOWTO64 (AARCH64_R (TLSLE_MOVW_TPREL_G2), /* type */ |
| bb3f9ed8 | 1623 | 32, /* rightshift */ |
| a06ea964 | 1624 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 07875fbc | 1625 | 16, /* bitsize */ |
| a06ea964 NC |
1626 | FALSE, /* pc_relative */ |
| 1627 | 0, /* bitpos */ | |
| 0172429c | 1628 | complain_overflow_unsigned, /* complain_on_overflow */ |
| a06ea964 | 1629 | bfd_elf_generic_reloc, /* special_function */ |
| a6bb11b2 | 1630 | AARCH64_R_STR (TLSLE_MOVW_TPREL_G2), /* name */ |
| a06ea964 NC |
1631 | FALSE, /* partial_inplace */ |
| 1632 | 0xffff, /* src_mask */ | |
| 1633 | 0xffff, /* dst_mask */ | |
| 1634 | FALSE), /* pcrel_offset */ | |
| 1635 | ||
| a6bb11b2 | 1636 | HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G1), /* type */ |
| bb3f9ed8 | 1637 | 16, /* rightshift */ |
| a06ea964 | 1638 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 07875fbc | 1639 | 16, /* bitsize */ |
| a06ea964 NC |
1640 | FALSE, /* pc_relative */ |
| 1641 | 0, /* bitpos */ | |
| 1642 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1643 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1644 | AARCH64_R_STR (TLSLE_MOVW_TPREL_G1), /* name */ |
| a06ea964 NC |
1645 | FALSE, /* partial_inplace */ |
| 1646 | 0xffff, /* src_mask */ | |
| 1647 | 0xffff, /* dst_mask */ | |
| 1648 | FALSE), /* pcrel_offset */ | |
| 1649 | ||
| a6bb11b2 | 1650 | HOWTO64 (AARCH64_R (TLSLE_MOVW_TPREL_G1_NC), /* type */ |
| bb3f9ed8 | 1651 | 16, /* rightshift */ |
| a06ea964 | 1652 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 07875fbc | 1653 | 16, /* bitsize */ |
| a06ea964 NC |
1654 | FALSE, /* pc_relative */ |
| 1655 | 0, /* bitpos */ | |
| 1656 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1657 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1658 | AARCH64_R_STR (TLSLE_MOVW_TPREL_G1_NC), /* name */ |
| a06ea964 NC |
1659 | FALSE, /* partial_inplace */ |
| 1660 | 0xffff, /* src_mask */ | |
| 1661 | 0xffff, /* dst_mask */ | |
| 1662 | FALSE), /* pcrel_offset */ | |
| 1663 | ||
| a6bb11b2 | 1664 | HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G0), /* type */ |
| a06ea964 NC |
1665 | 0, /* rightshift */ |
| 1666 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 07875fbc | 1667 | 16, /* bitsize */ |
| a06ea964 NC |
1668 | FALSE, /* pc_relative */ |
| 1669 | 0, /* bitpos */ | |
| 1670 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1671 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1672 | AARCH64_R_STR (TLSLE_MOVW_TPREL_G0), /* name */ |
| a06ea964 NC |
1673 | FALSE, /* partial_inplace */ |
| 1674 | 0xffff, /* src_mask */ | |
| 1675 | 0xffff, /* dst_mask */ | |
| 1676 | FALSE), /* pcrel_offset */ | |
| 1677 | ||
| a6bb11b2 | 1678 | HOWTO (AARCH64_R (TLSLE_MOVW_TPREL_G0_NC), /* type */ |
| a06ea964 NC |
1679 | 0, /* rightshift */ |
| 1680 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 07875fbc | 1681 | 16, /* bitsize */ |
| a06ea964 NC |
1682 | FALSE, /* pc_relative */ |
| 1683 | 0, /* bitpos */ | |
| 1684 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1685 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1686 | AARCH64_R_STR (TLSLE_MOVW_TPREL_G0_NC), /* name */ |
| a06ea964 NC |
1687 | FALSE, /* partial_inplace */ |
| 1688 | 0xffff, /* src_mask */ | |
| 1689 | 0xffff, /* dst_mask */ | |
| 1690 | FALSE), /* pcrel_offset */ | |
| 1691 | ||
| a6bb11b2 | 1692 | HOWTO (AARCH64_R (TLSLE_ADD_TPREL_HI12), /* type */ |
| bb3f9ed8 | 1693 | 12, /* rightshift */ |
| a06ea964 NC |
1694 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1695 | 12, /* bitsize */ | |
| 1696 | FALSE, /* pc_relative */ | |
| 1697 | 0, /* bitpos */ | |
| bab91cce | 1698 | complain_overflow_unsigned, /* complain_on_overflow */ |
| a06ea964 | 1699 | bfd_elf_generic_reloc, /* special_function */ |
| a6bb11b2 | 1700 | AARCH64_R_STR (TLSLE_ADD_TPREL_HI12), /* name */ |
| a06ea964 NC |
1701 | FALSE, /* partial_inplace */ |
| 1702 | 0xfff, /* src_mask */ | |
| 1703 | 0xfff, /* dst_mask */ | |
| 1704 | FALSE), /* pcrel_offset */ | |
| 1705 | ||
| a6bb11b2 | 1706 | HOWTO (AARCH64_R (TLSLE_ADD_TPREL_LO12), /* type */ |
| a06ea964 NC |
1707 | 0, /* rightshift */ |
| 1708 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1709 | 12, /* bitsize */ | |
| 1710 | FALSE, /* pc_relative */ | |
| 1711 | 0, /* bitpos */ | |
| 36e6c140 | 1712 | complain_overflow_unsigned, /* complain_on_overflow */ |
| a06ea964 | 1713 | bfd_elf_generic_reloc, /* special_function */ |
| a6bb11b2 | 1714 | AARCH64_R_STR (TLSLE_ADD_TPREL_LO12), /* name */ |
| a06ea964 NC |
1715 | FALSE, /* partial_inplace */ |
| 1716 | 0xfff, /* src_mask */ | |
| 1717 | 0xfff, /* dst_mask */ | |
| 1718 | FALSE), /* pcrel_offset */ | |
| 1719 | ||
| a6bb11b2 | 1720 | HOWTO (AARCH64_R (TLSLE_ADD_TPREL_LO12_NC), /* type */ |
| a06ea964 NC |
1721 | 0, /* rightshift */ |
| 1722 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1723 | 12, /* bitsize */ | |
| 1724 | FALSE, /* pc_relative */ | |
| 1725 | 0, /* bitpos */ | |
| 1726 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1727 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1728 | AARCH64_R_STR (TLSLE_ADD_TPREL_LO12_NC), /* name */ |
| a06ea964 NC |
1729 | FALSE, /* partial_inplace */ |
| 1730 | 0xfff, /* src_mask */ | |
| 1731 | 0xfff, /* dst_mask */ | |
| 1732 | FALSE), /* pcrel_offset */ | |
| a06ea964 | 1733 | |
| 84f1b9fb RL |
1734 | /* LD/ST16: bit[11:1] of byte offset to module TLS base address. */ |
| 1735 | HOWTO (AARCH64_R (TLSLE_LDST16_TPREL_LO12), /* type */ | |
| 1736 | 1, /* rightshift */ | |
| 1737 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1738 | 11, /* bitsize */ | |
| 1739 | FALSE, /* pc_relative */ | |
| 1740 | 10, /* bitpos */ | |
| 1741 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1742 | bfd_elf_generic_reloc, /* special_function */ | |
| 1743 | AARCH64_R_STR (TLSLE_LDST16_TPREL_LO12), /* name */ | |
| 1744 | FALSE, /* partial_inplace */ | |
| 1745 | 0x1ffc00, /* src_mask */ | |
| 1746 | 0x1ffc00, /* dst_mask */ | |
| 1747 | FALSE), /* pcrel_offset */ | |
| 1748 | ||
| 1749 | /* Same as BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12, but no overflow check. */ | |
| 1750 | HOWTO (AARCH64_R (TLSLE_LDST16_TPREL_LO12_NC), /* type */ | |
| 1751 | 1, /* rightshift */ | |
| 1752 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1753 | 11, /* bitsize */ | |
| 1754 | FALSE, /* pc_relative */ | |
| 1755 | 10, /* bitpos */ | |
| 1756 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1757 | bfd_elf_generic_reloc, /* special_function */ | |
| 1758 | AARCH64_R_STR (TLSLE_LDST16_TPREL_LO12_NC), /* name */ | |
| 1759 | FALSE, /* partial_inplace */ | |
| 1760 | 0x1ffc00, /* src_mask */ | |
| 1761 | 0x1ffc00, /* dst_mask */ | |
| 1762 | FALSE), /* pcrel_offset */ | |
| 1763 | ||
| 1764 | /* LD/ST32: bit[11:2] of byte offset to module TLS base address. */ | |
| 1765 | HOWTO (AARCH64_R (TLSLE_LDST32_TPREL_LO12), /* type */ | |
| 1766 | 2, /* rightshift */ | |
| 1767 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1768 | 10, /* bitsize */ | |
| 1769 | FALSE, /* pc_relative */ | |
| 1770 | 10, /* bitpos */ | |
| 1771 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1772 | bfd_elf_generic_reloc, /* special_function */ | |
| 1773 | AARCH64_R_STR (TLSLE_LDST32_TPREL_LO12), /* name */ | |
| 1774 | FALSE, /* partial_inplace */ | |
| 1775 | 0xffc00, /* src_mask */ | |
| 1776 | 0xffc00, /* dst_mask */ | |
| 1777 | FALSE), /* pcrel_offset */ | |
| 1778 | ||
| 1779 | /* Same as BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12, but no overflow check. */ | |
| 1780 | HOWTO (AARCH64_R (TLSLE_LDST32_TPREL_LO12_NC), /* type */ | |
| 1781 | 2, /* rightshift */ | |
| 1782 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1783 | 10, /* bitsize */ | |
| 1784 | FALSE, /* pc_relative */ | |
| 1785 | 10, /* bitpos */ | |
| 1786 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1787 | bfd_elf_generic_reloc, /* special_function */ | |
| 1788 | AARCH64_R_STR (TLSLE_LDST32_TPREL_LO12_NC), /* name */ | |
| 1789 | FALSE, /* partial_inplace */ | |
| 1790 | 0xffc00, /* src_mask */ | |
| 1791 | 0xffc00, /* dst_mask */ | |
| 1792 | FALSE), /* pcrel_offset */ | |
| 1793 | ||
| 1794 | /* LD/ST64: bit[11:3] of byte offset to module TLS base address. */ | |
| 1795 | HOWTO (AARCH64_R (TLSLE_LDST64_TPREL_LO12), /* type */ | |
| 1796 | 3, /* rightshift */ | |
| 1797 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1798 | 9, /* bitsize */ | |
| 1799 | FALSE, /* pc_relative */ | |
| 1800 | 10, /* bitpos */ | |
| 1801 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1802 | bfd_elf_generic_reloc, /* special_function */ | |
| 1803 | AARCH64_R_STR (TLSLE_LDST64_TPREL_LO12), /* name */ | |
| 1804 | FALSE, /* partial_inplace */ | |
| 1805 | 0x7fc00, /* src_mask */ | |
| 1806 | 0x7fc00, /* dst_mask */ | |
| 1807 | FALSE), /* pcrel_offset */ | |
| 1808 | ||
| 1809 | /* Same as BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12, but no overflow check. */ | |
| 1810 | HOWTO (AARCH64_R (TLSLE_LDST64_TPREL_LO12_NC), /* type */ | |
| 1811 | 3, /* rightshift */ | |
| 1812 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1813 | 9, /* bitsize */ | |
| 1814 | FALSE, /* pc_relative */ | |
| 1815 | 10, /* bitpos */ | |
| 1816 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1817 | bfd_elf_generic_reloc, /* special_function */ | |
| 1818 | AARCH64_R_STR (TLSLE_LDST64_TPREL_LO12_NC), /* name */ | |
| 1819 | FALSE, /* partial_inplace */ | |
| 1820 | 0x7fc00, /* src_mask */ | |
| 1821 | 0x7fc00, /* dst_mask */ | |
| 1822 | FALSE), /* pcrel_offset */ | |
| 1823 | ||
| 1824 | /* LD/ST8: bit[11:0] of byte offset to module TLS base address. */ | |
| 1825 | HOWTO (AARCH64_R (TLSLE_LDST8_TPREL_LO12), /* type */ | |
| 1826 | 0, /* rightshift */ | |
| 1827 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1828 | 12, /* bitsize */ | |
| 1829 | FALSE, /* pc_relative */ | |
| 1830 | 10, /* bitpos */ | |
| 1831 | complain_overflow_unsigned, /* complain_on_overflow */ | |
| 1832 | bfd_elf_generic_reloc, /* special_function */ | |
| 1833 | AARCH64_R_STR (TLSLE_LDST8_TPREL_LO12), /* name */ | |
| 1834 | FALSE, /* partial_inplace */ | |
| 1835 | 0x3ffc00, /* src_mask */ | |
| 1836 | 0x3ffc00, /* dst_mask */ | |
| 1837 | FALSE), /* pcrel_offset */ | |
| 1838 | ||
| 1839 | /* Same as BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12, but no overflow check. */ | |
| 1840 | HOWTO (AARCH64_R (TLSLE_LDST8_TPREL_LO12_NC), /* type */ | |
| 1841 | 0, /* rightshift */ | |
| 1842 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1843 | 12, /* bitsize */ | |
| 1844 | FALSE, /* pc_relative */ | |
| 1845 | 10, /* bitpos */ | |
| 1846 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1847 | bfd_elf_generic_reloc, /* special_function */ | |
| 1848 | AARCH64_R_STR (TLSLE_LDST8_TPREL_LO12_NC), /* name */ | |
| 1849 | FALSE, /* partial_inplace */ | |
| 1850 | 0x3ffc00, /* src_mask */ | |
| 1851 | 0x3ffc00, /* dst_mask */ | |
| 1852 | FALSE), /* pcrel_offset */ | |
| 1853 | ||
| a6bb11b2 | 1854 | HOWTO (AARCH64_R (TLSDESC_LD_PREL19), /* type */ |
| bb3f9ed8 | 1855 | 2, /* rightshift */ |
| a06ea964 | 1856 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1ada945d | 1857 | 19, /* bitsize */ |
| a06ea964 NC |
1858 | TRUE, /* pc_relative */ |
| 1859 | 0, /* bitpos */ | |
| 1860 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1861 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1862 | AARCH64_R_STR (TLSDESC_LD_PREL19), /* name */ |
| a06ea964 | 1863 | FALSE, /* partial_inplace */ |
| 1ada945d MS |
1864 | 0x0ffffe0, /* src_mask */ |
| 1865 | 0x0ffffe0, /* dst_mask */ | |
| a06ea964 NC |
1866 | TRUE), /* pcrel_offset */ |
| 1867 | ||
| a6bb11b2 | 1868 | HOWTO (AARCH64_R (TLSDESC_ADR_PREL21), /* type */ |
| a06ea964 NC |
1869 | 0, /* rightshift */ |
| 1870 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1871 | 21, /* bitsize */ | |
| 1872 | TRUE, /* pc_relative */ | |
| 1873 | 0, /* bitpos */ | |
| 1874 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1875 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1876 | AARCH64_R_STR (TLSDESC_ADR_PREL21), /* name */ |
| a06ea964 NC |
1877 | FALSE, /* partial_inplace */ |
| 1878 | 0x1fffff, /* src_mask */ | |
| 1879 | 0x1fffff, /* dst_mask */ | |
| 1880 | TRUE), /* pcrel_offset */ | |
| 1881 | ||
| 1882 | /* Get to the page for the GOT entry for the symbol | |
| 1883 | (G(S) - P) using an ADRP instruction. */ | |
| a6bb11b2 | 1884 | HOWTO (AARCH64_R (TLSDESC_ADR_PAGE21), /* type */ |
| a06ea964 NC |
1885 | 12, /* rightshift */ |
| 1886 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1887 | 21, /* bitsize */ | |
| 1888 | TRUE, /* pc_relative */ | |
| 1889 | 0, /* bitpos */ | |
| 1890 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1891 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1892 | AARCH64_R_STR (TLSDESC_ADR_PAGE21), /* name */ |
| a06ea964 NC |
1893 | FALSE, /* partial_inplace */ |
| 1894 | 0x1fffff, /* src_mask */ | |
| 1895 | 0x1fffff, /* dst_mask */ | |
| 1896 | TRUE), /* pcrel_offset */ | |
| 1897 | ||
| a6bb11b2 | 1898 | /* LD64: GOT offset G(S) & 0xff8. */ |
| f955cccf | 1899 | HOWTO64 (AARCH64_R (TLSDESC_LD64_LO12), /* type */ |
| a06ea964 NC |
1900 | 3, /* rightshift */ |
| 1901 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1902 | 12, /* bitsize */ | |
| 1903 | FALSE, /* pc_relative */ | |
| 1904 | 0, /* bitpos */ | |
| 1905 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1906 | bfd_elf_generic_reloc, /* special_function */ | |
| f955cccf | 1907 | AARCH64_R_STR (TLSDESC_LD64_LO12), /* name */ |
| a06ea964 | 1908 | FALSE, /* partial_inplace */ |
| a6bb11b2 YZ |
1909 | 0xff8, /* src_mask */ |
| 1910 | 0xff8, /* dst_mask */ | |
| 1911 | FALSE), /* pcrel_offset */ | |
| 1912 | ||
| 1913 | /* LD32: GOT offset G(S) & 0xffc. */ | |
| 1914 | HOWTO32 (AARCH64_R (TLSDESC_LD32_LO12_NC), /* type */ | |
| 1915 | 2, /* rightshift */ | |
| 1916 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1917 | 12, /* bitsize */ | |
| 1918 | FALSE, /* pc_relative */ | |
| 1919 | 0, /* bitpos */ | |
| 1920 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1921 | bfd_elf_generic_reloc, /* special_function */ | |
| 1922 | AARCH64_R_STR (TLSDESC_LD32_LO12_NC), /* name */ | |
| 1923 | FALSE, /* partial_inplace */ | |
| 1924 | 0xffc, /* src_mask */ | |
| 1925 | 0xffc, /* dst_mask */ | |
| a06ea964 NC |
1926 | FALSE), /* pcrel_offset */ |
| 1927 | ||
| 1928 | /* ADD: GOT offset G(S) & 0xfff. */ | |
| f955cccf | 1929 | HOWTO (AARCH64_R (TLSDESC_ADD_LO12), /* type */ |
| a06ea964 NC |
1930 | 0, /* rightshift */ |
| 1931 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1932 | 12, /* bitsize */ | |
| 1933 | FALSE, /* pc_relative */ | |
| 1934 | 0, /* bitpos */ | |
| f955cccf | 1935 | complain_overflow_dont,/* complain_on_overflow */ |
| a06ea964 | 1936 | bfd_elf_generic_reloc, /* special_function */ |
| f955cccf | 1937 | AARCH64_R_STR (TLSDESC_ADD_LO12), /* name */ |
| a06ea964 NC |
1938 | FALSE, /* partial_inplace */ |
| 1939 | 0xfff, /* src_mask */ | |
| 1940 | 0xfff, /* dst_mask */ | |
| 1941 | FALSE), /* pcrel_offset */ | |
| 1942 | ||
| a6bb11b2 | 1943 | HOWTO64 (AARCH64_R (TLSDESC_OFF_G1), /* type */ |
| bb3f9ed8 | 1944 | 16, /* rightshift */ |
| a06ea964 NC |
1945 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1946 | 12, /* bitsize */ | |
| 1947 | FALSE, /* pc_relative */ | |
| 1948 | 0, /* bitpos */ | |
| 43a357f9 | 1949 | complain_overflow_unsigned, /* complain_on_overflow */ |
| a06ea964 | 1950 | bfd_elf_generic_reloc, /* special_function */ |
| a6bb11b2 | 1951 | AARCH64_R_STR (TLSDESC_OFF_G1), /* name */ |
| a06ea964 NC |
1952 | FALSE, /* partial_inplace */ |
| 1953 | 0xffff, /* src_mask */ | |
| 1954 | 0xffff, /* dst_mask */ | |
| 1955 | FALSE), /* pcrel_offset */ | |
| 1956 | ||
| a6bb11b2 | 1957 | HOWTO64 (AARCH64_R (TLSDESC_OFF_G0_NC), /* type */ |
| a06ea964 NC |
1958 | 0, /* rightshift */ |
| 1959 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1960 | 12, /* bitsize */ | |
| 1961 | FALSE, /* pc_relative */ | |
| 1962 | 0, /* bitpos */ | |
| 1963 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1964 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1965 | AARCH64_R_STR (TLSDESC_OFF_G0_NC), /* name */ |
| a06ea964 NC |
1966 | FALSE, /* partial_inplace */ |
| 1967 | 0xffff, /* src_mask */ | |
| 1968 | 0xffff, /* dst_mask */ | |
| 1969 | FALSE), /* pcrel_offset */ | |
| 1970 | ||
| a6bb11b2 | 1971 | HOWTO64 (AARCH64_R (TLSDESC_LDR), /* type */ |
| a06ea964 NC |
1972 | 0, /* rightshift */ |
| 1973 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1974 | 12, /* bitsize */ | |
| 1975 | FALSE, /* pc_relative */ | |
| 1976 | 0, /* bitpos */ | |
| 1977 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1978 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1979 | AARCH64_R_STR (TLSDESC_LDR), /* name */ |
| a06ea964 NC |
1980 | FALSE, /* partial_inplace */ |
| 1981 | 0x0, /* src_mask */ | |
| 1982 | 0x0, /* dst_mask */ | |
| 1983 | FALSE), /* pcrel_offset */ | |
| 1984 | ||
| a6bb11b2 | 1985 | HOWTO64 (AARCH64_R (TLSDESC_ADD), /* type */ |
| a06ea964 NC |
1986 | 0, /* rightshift */ |
| 1987 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1988 | 12, /* bitsize */ | |
| 1989 | FALSE, /* pc_relative */ | |
| 1990 | 0, /* bitpos */ | |
| 1991 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1992 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 1993 | AARCH64_R_STR (TLSDESC_ADD), /* name */ |
| a06ea964 NC |
1994 | FALSE, /* partial_inplace */ |
| 1995 | 0x0, /* src_mask */ | |
| 1996 | 0x0, /* dst_mask */ | |
| 1997 | FALSE), /* pcrel_offset */ | |
| 1998 | ||
| a6bb11b2 | 1999 | HOWTO (AARCH64_R (TLSDESC_CALL), /* type */ |
| a06ea964 NC |
2000 | 0, /* rightshift */ |
| 2001 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 7366006f | 2002 | 0, /* bitsize */ |
| a06ea964 NC |
2003 | FALSE, /* pc_relative */ |
| 2004 | 0, /* bitpos */ | |
| 2005 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2006 | bfd_elf_generic_reloc, /* special_function */ | |
| a6bb11b2 | 2007 | AARCH64_R_STR (TLSDESC_CALL), /* name */ |
| a06ea964 NC |
2008 | FALSE, /* partial_inplace */ |
| 2009 | 0x0, /* src_mask */ | |
| 2010 | 0x0, /* dst_mask */ | |
| 2011 | FALSE), /* pcrel_offset */ | |
| a6bb11b2 YZ |
2012 | |
| 2013 | HOWTO (AARCH64_R (COPY), /* type */ | |
| 2014 | 0, /* rightshift */ | |
| 2015 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2016 | 64, /* bitsize */ | |
| 2017 | FALSE, /* pc_relative */ | |
| 2018 | 0, /* bitpos */ | |
| 2019 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2020 | bfd_elf_generic_reloc, /* special_function */ | |
| 2021 | AARCH64_R_STR (COPY), /* name */ | |
| 2022 | TRUE, /* partial_inplace */ | |
| 2023 | 0xffffffff, /* src_mask */ | |
| 2024 | 0xffffffff, /* dst_mask */ | |
| 2025 | FALSE), /* pcrel_offset */ | |
| 2026 | ||
| 2027 | HOWTO (AARCH64_R (GLOB_DAT), /* type */ | |
| 2028 | 0, /* rightshift */ | |
| 2029 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2030 | 64, /* bitsize */ | |
| 2031 | FALSE, /* pc_relative */ | |
| 2032 | 0, /* bitpos */ | |
| 2033 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2034 | bfd_elf_generic_reloc, /* special_function */ | |
| 2035 | AARCH64_R_STR (GLOB_DAT), /* name */ | |
| 2036 | TRUE, /* partial_inplace */ | |
| 2037 | 0xffffffff, /* src_mask */ | |
| 2038 | 0xffffffff, /* dst_mask */ | |
| 2039 | FALSE), /* pcrel_offset */ | |
| 2040 | ||
| 2041 | HOWTO (AARCH64_R (JUMP_SLOT), /* type */ | |
| 2042 | 0, /* rightshift */ | |
| 2043 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2044 | 64, /* bitsize */ | |
| 2045 | FALSE, /* pc_relative */ | |
| 2046 | 0, /* bitpos */ | |
| 2047 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2048 | bfd_elf_generic_reloc, /* special_function */ | |
| 2049 | AARCH64_R_STR (JUMP_SLOT), /* name */ | |
| 2050 | TRUE, /* partial_inplace */ | |
| 2051 | 0xffffffff, /* src_mask */ | |
| 2052 | 0xffffffff, /* dst_mask */ | |
| 2053 | FALSE), /* pcrel_offset */ | |
| 2054 | ||
| 2055 | HOWTO (AARCH64_R (RELATIVE), /* type */ | |
| 2056 | 0, /* rightshift */ | |
| 2057 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2058 | 64, /* bitsize */ | |
| 2059 | FALSE, /* pc_relative */ | |
| 2060 | 0, /* bitpos */ | |
| 2061 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2062 | bfd_elf_generic_reloc, /* special_function */ | |
| 2063 | AARCH64_R_STR (RELATIVE), /* name */ | |
| 2064 | TRUE, /* partial_inplace */ | |
| 2065 | ALL_ONES, /* src_mask */ | |
| 2066 | ALL_ONES, /* dst_mask */ | |
| 2067 | FALSE), /* pcrel_offset */ | |
| 2068 | ||
| 2069 | HOWTO (AARCH64_R (TLS_DTPMOD), /* type */ | |
| 2070 | 0, /* rightshift */ | |
| 2071 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2072 | 64, /* bitsize */ | |
| 2073 | FALSE, /* pc_relative */ | |
| 2074 | 0, /* bitpos */ | |
| 2075 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2076 | bfd_elf_generic_reloc, /* special_function */ | |
| da0781dc YZ |
2077 | #if ARCH_SIZE == 64 |
| 2078 | AARCH64_R_STR (TLS_DTPMOD64), /* name */ | |
| 2079 | #else | |
| a6bb11b2 | 2080 | AARCH64_R_STR (TLS_DTPMOD), /* name */ |
| da0781dc | 2081 | #endif |
| a6bb11b2 YZ |
2082 | FALSE, /* partial_inplace */ |
| 2083 | 0, /* src_mask */ | |
| 2084 | ALL_ONES, /* dst_mask */ | |
| 2085 | FALSE), /* pc_reloffset */ | |
| 2086 | ||
| 2087 | HOWTO (AARCH64_R (TLS_DTPREL), /* type */ | |
| 2088 | 0, /* rightshift */ | |
| 2089 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2090 | 64, /* bitsize */ | |
| 2091 | FALSE, /* pc_relative */ | |
| 2092 | 0, /* bitpos */ | |
| 2093 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2094 | bfd_elf_generic_reloc, /* special_function */ | |
| da0781dc YZ |
2095 | #if ARCH_SIZE == 64 |
| 2096 | AARCH64_R_STR (TLS_DTPREL64), /* name */ | |
| 2097 | #else | |
| a6bb11b2 | 2098 | AARCH64_R_STR (TLS_DTPREL), /* name */ |
| da0781dc | 2099 | #endif |
| a6bb11b2 YZ |
2100 | FALSE, /* partial_inplace */ |
| 2101 | 0, /* src_mask */ | |
| 2102 | ALL_ONES, /* dst_mask */ | |
| 2103 | FALSE), /* pcrel_offset */ | |
| 2104 | ||
| 2105 | HOWTO (AARCH64_R (TLS_TPREL), /* type */ | |
| 2106 | 0, /* rightshift */ | |
| 2107 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2108 | 64, /* bitsize */ | |
| 2109 | FALSE, /* pc_relative */ | |
| 2110 | 0, /* bitpos */ | |
| 2111 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2112 | bfd_elf_generic_reloc, /* special_function */ | |
| da0781dc YZ |
2113 | #if ARCH_SIZE == 64 |
| 2114 | AARCH64_R_STR (TLS_TPREL64), /* name */ | |
| 2115 | #else | |
| a6bb11b2 | 2116 | AARCH64_R_STR (TLS_TPREL), /* name */ |
| da0781dc | 2117 | #endif |
| a6bb11b2 YZ |
2118 | FALSE, /* partial_inplace */ |
| 2119 | 0, /* src_mask */ | |
| 2120 | ALL_ONES, /* dst_mask */ | |
| 2121 | FALSE), /* pcrel_offset */ | |
| 2122 | ||
| 2123 | HOWTO (AARCH64_R (TLSDESC), /* type */ | |
| 2124 | 0, /* rightshift */ | |
| 2125 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2126 | 64, /* bitsize */ | |
| 2127 | FALSE, /* pc_relative */ | |
| 2128 | 0, /* bitpos */ | |
| 2129 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2130 | bfd_elf_generic_reloc, /* special_function */ | |
| 2131 | AARCH64_R_STR (TLSDESC), /* name */ | |
| 2132 | FALSE, /* partial_inplace */ | |
| 2133 | 0, /* src_mask */ | |
| 2134 | ALL_ONES, /* dst_mask */ | |
| 2135 | FALSE), /* pcrel_offset */ | |
| 2136 | ||
| 2137 | HOWTO (AARCH64_R (IRELATIVE), /* type */ | |
| 2138 | 0, /* rightshift */ | |
| 2139 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2140 | 64, /* bitsize */ | |
| 2141 | FALSE, /* pc_relative */ | |
| 2142 | 0, /* bitpos */ | |
| 2143 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2144 | bfd_elf_generic_reloc, /* special_function */ | |
| 2145 | AARCH64_R_STR (IRELATIVE), /* name */ | |
| 2146 | FALSE, /* partial_inplace */ | |
| 2147 | 0, /* src_mask */ | |
| 2148 | ALL_ONES, /* dst_mask */ | |
| 2149 | FALSE), /* pcrel_offset */ | |
| 2150 | ||
| 2151 | EMPTY_HOWTO (0), | |
| a06ea964 NC |
2152 | }; |
| 2153 | ||
| a6bb11b2 YZ |
2154 | static reloc_howto_type elfNN_aarch64_howto_none = |
| 2155 | HOWTO (R_AARCH64_NONE, /* type */ | |
| 2156 | 0, /* rightshift */ | |
| 6346d5ca | 2157 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| a6bb11b2 YZ |
2158 | 0, /* bitsize */ |
| 2159 | FALSE, /* pc_relative */ | |
| 2160 | 0, /* bitpos */ | |
| 2161 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2162 | bfd_elf_generic_reloc, /* special_function */ | |
| 2163 | "R_AARCH64_NONE", /* name */ | |
| 2164 | FALSE, /* partial_inplace */ | |
| 2165 | 0, /* src_mask */ | |
| 2166 | 0, /* dst_mask */ | |
| 2167 | FALSE); /* pcrel_offset */ | |
| 2168 | ||
| 2169 | /* Given HOWTO, return the bfd internal relocation enumerator. */ | |
| 2170 | ||
| 2171 | static bfd_reloc_code_real_type | |
| 2172 | elfNN_aarch64_bfd_reloc_from_howto (reloc_howto_type *howto) | |
| 2173 | { | |
| 2174 | const int size | |
| 2175 | = (int) ARRAY_SIZE (elfNN_aarch64_howto_table); | |
| 2176 | const ptrdiff_t offset | |
| 2177 | = howto - elfNN_aarch64_howto_table; | |
| 2178 | ||
| 2179 | if (offset > 0 && offset < size - 1) | |
| 2180 | return BFD_RELOC_AARCH64_RELOC_START + offset; | |
| 2181 | ||
| 2182 | if (howto == &elfNN_aarch64_howto_none) | |
| 2183 | return BFD_RELOC_AARCH64_NONE; | |
| 2184 | ||
| 2185 | return BFD_RELOC_AARCH64_RELOC_START; | |
| 2186 | } | |
| 2187 | ||
| 2188 | /* Given R_TYPE, return the bfd internal relocation enumerator. */ | |
| 2189 | ||
| 2190 | static bfd_reloc_code_real_type | |
| 0aa13fee | 2191 | elfNN_aarch64_bfd_reloc_from_type (bfd *abfd, unsigned int r_type) |
| a6bb11b2 YZ |
2192 | { |
| 2193 | static bfd_boolean initialized_p = FALSE; | |
| 2194 | /* Indexed by R_TYPE, values are offsets in the howto_table. */ | |
| 2195 | static unsigned int offsets[R_AARCH64_end]; | |
| 2196 | ||
| 535b785f | 2197 | if (!initialized_p) |
| a6bb11b2 YZ |
2198 | { |
| 2199 | unsigned int i; | |
| 2200 | ||
| 2201 | for (i = 1; i < ARRAY_SIZE (elfNN_aarch64_howto_table) - 1; ++i) | |
| 2202 | if (elfNN_aarch64_howto_table[i].type != 0) | |
| 2203 | offsets[elfNN_aarch64_howto_table[i].type] = i; | |
| 2204 | ||
| 2205 | initialized_p = TRUE; | |
| 2206 | } | |
| 2207 | ||
| 2208 | if (r_type == R_AARCH64_NONE || r_type == R_AARCH64_NULL) | |
| 2209 | return BFD_RELOC_AARCH64_NONE; | |
| 2210 | ||
| 5860e3f8 NC |
2211 | /* PR 17512: file: b371e70a. */ |
| 2212 | if (r_type >= R_AARCH64_end) | |
| 2213 | { | |
| 0aa13fee AM |
2214 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
| 2215 | abfd, r_type); | |
| 5860e3f8 NC |
2216 | bfd_set_error (bfd_error_bad_value); |
| 2217 | return BFD_RELOC_AARCH64_NONE; | |
| 2218 | } | |
| 2219 | ||
| a6bb11b2 YZ |
2220 | return BFD_RELOC_AARCH64_RELOC_START + offsets[r_type]; |
| 2221 | } | |
| 2222 | ||
| 2223 | struct elf_aarch64_reloc_map | |
| 2224 | { | |
| 2225 | bfd_reloc_code_real_type from; | |
| 2226 | bfd_reloc_code_real_type to; | |
| 2227 | }; | |
| 2228 | ||
| 2229 | /* Map bfd generic reloc to AArch64-specific reloc. */ | |
| 2230 | static const struct elf_aarch64_reloc_map elf_aarch64_reloc_map[] = | |
| 2231 | { | |
| 2232 | {BFD_RELOC_NONE, BFD_RELOC_AARCH64_NONE}, | |
| 2233 | ||
| 2234 | /* Basic data relocations. */ | |
| 2235 | {BFD_RELOC_CTOR, BFD_RELOC_AARCH64_NN}, | |
| 2236 | {BFD_RELOC_64, BFD_RELOC_AARCH64_64}, | |
| 2237 | {BFD_RELOC_32, BFD_RELOC_AARCH64_32}, | |
| 2238 | {BFD_RELOC_16, BFD_RELOC_AARCH64_16}, | |
| 2239 | {BFD_RELOC_64_PCREL, BFD_RELOC_AARCH64_64_PCREL}, | |
| 2240 | {BFD_RELOC_32_PCREL, BFD_RELOC_AARCH64_32_PCREL}, | |
| 2241 | {BFD_RELOC_16_PCREL, BFD_RELOC_AARCH64_16_PCREL}, | |
| 2242 | }; | |
| 2243 | ||
| 2244 | /* Given the bfd internal relocation enumerator in CODE, return the | |
| 2245 | corresponding howto entry. */ | |
| 2246 | ||
| 2247 | static reloc_howto_type * | |
| 2248 | elfNN_aarch64_howto_from_bfd_reloc (bfd_reloc_code_real_type code) | |
| 2249 | { | |
| 2250 | unsigned int i; | |
| 2251 | ||
| 2252 | /* Convert bfd generic reloc to AArch64-specific reloc. */ | |
| 2253 | if (code < BFD_RELOC_AARCH64_RELOC_START | |
| 2254 | || code > BFD_RELOC_AARCH64_RELOC_END) | |
| 2255 | for (i = 0; i < ARRAY_SIZE (elf_aarch64_reloc_map); i++) | |
| 2256 | if (elf_aarch64_reloc_map[i].from == code) | |
| 2257 | { | |
| 2258 | code = elf_aarch64_reloc_map[i].to; | |
| 2259 | break; | |
| 2260 | } | |
| 2261 | ||
| 2262 | if (code > BFD_RELOC_AARCH64_RELOC_START | |
| 2263 | && code < BFD_RELOC_AARCH64_RELOC_END) | |
| 2264 | if (elfNN_aarch64_howto_table[code - BFD_RELOC_AARCH64_RELOC_START].type) | |
| 2265 | return &elfNN_aarch64_howto_table[code - BFD_RELOC_AARCH64_RELOC_START]; | |
| 2266 | ||
| 54757ed1 AP |
2267 | if (code == BFD_RELOC_AARCH64_NONE) |
| 2268 | return &elfNN_aarch64_howto_none; | |
| 2269 | ||
| a6bb11b2 YZ |
2270 | return NULL; |
| 2271 | } | |
| 2272 | ||
| a06ea964 | 2273 | static reloc_howto_type * |
| 0aa13fee | 2274 | elfNN_aarch64_howto_from_type (bfd *abfd, unsigned int r_type) |
| a06ea964 | 2275 | { |
| a6bb11b2 YZ |
2276 | bfd_reloc_code_real_type val; |
| 2277 | reloc_howto_type *howto; | |
| 2278 | ||
| cec5225b YZ |
2279 | #if ARCH_SIZE == 32 |
| 2280 | if (r_type > 256) | |
| 2281 | { | |
| 2282 | bfd_set_error (bfd_error_bad_value); | |
| 2283 | return NULL; | |
| 2284 | } | |
| 2285 | #endif | |
| 2286 | ||
| a6bb11b2 YZ |
2287 | if (r_type == R_AARCH64_NONE) |
| 2288 | return &elfNN_aarch64_howto_none; | |
| a06ea964 | 2289 | |
| 0aa13fee | 2290 | val = elfNN_aarch64_bfd_reloc_from_type (abfd, r_type); |
| a6bb11b2 | 2291 | howto = elfNN_aarch64_howto_from_bfd_reloc (val); |
| a06ea964 | 2292 | |
| a6bb11b2 YZ |
2293 | if (howto != NULL) |
| 2294 | return howto; | |
| a06ea964 | 2295 | |
| a06ea964 NC |
2296 | bfd_set_error (bfd_error_bad_value); |
| 2297 | return NULL; | |
| 2298 | } | |
| 2299 | ||
| f3185997 | 2300 | static bfd_boolean |
| 0aa13fee | 2301 | elfNN_aarch64_info_to_howto (bfd *abfd, arelent *bfd_reloc, |
| a06ea964 NC |
2302 | Elf_Internal_Rela *elf_reloc) |
| 2303 | { | |
| 2304 | unsigned int r_type; | |
| 2305 | ||
| cec5225b | 2306 | r_type = ELFNN_R_TYPE (elf_reloc->r_info); |
| 0aa13fee | 2307 | bfd_reloc->howto = elfNN_aarch64_howto_from_type (abfd, r_type); |
| f3185997 NC |
2308 | |
| 2309 | if (bfd_reloc->howto == NULL) | |
| 2310 | { | |
| 2311 | /* xgettext:c-format */ | |
| 2312 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, r_type); | |
| 2313 | return FALSE; | |
| 2314 | } | |
| 2315 | return TRUE; | |
| a06ea964 NC |
2316 | } |
| 2317 | ||
| a06ea964 | 2318 | static reloc_howto_type * |
| cec5225b | 2319 | elfNN_aarch64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| a06ea964 NC |
2320 | bfd_reloc_code_real_type code) |
| 2321 | { | |
| a6bb11b2 | 2322 | reloc_howto_type *howto = elfNN_aarch64_howto_from_bfd_reloc (code); |
| a06ea964 | 2323 | |
| a6bb11b2 YZ |
2324 | if (howto != NULL) |
| 2325 | return howto; | |
| a06ea964 NC |
2326 | |
| 2327 | bfd_set_error (bfd_error_bad_value); | |
| 2328 | return NULL; | |
| 2329 | } | |
| 2330 | ||
| 2331 | static reloc_howto_type * | |
| cec5225b | 2332 | elfNN_aarch64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| a06ea964 NC |
2333 | const char *r_name) |
| 2334 | { | |
| 2335 | unsigned int i; | |
| 2336 | ||
| a6bb11b2 YZ |
2337 | for (i = 1; i < ARRAY_SIZE (elfNN_aarch64_howto_table) - 1; ++i) |
| 2338 | if (elfNN_aarch64_howto_table[i].name != NULL | |
| 2339 | && strcasecmp (elfNN_aarch64_howto_table[i].name, r_name) == 0) | |
| 2340 | return &elfNN_aarch64_howto_table[i]; | |
| a06ea964 NC |
2341 | |
| 2342 | return NULL; | |
| 2343 | } | |
| 2344 | ||
| 07d6d2b8 AM |
2345 | #define TARGET_LITTLE_SYM aarch64_elfNN_le_vec |
| 2346 | #define TARGET_LITTLE_NAME "elfNN-littleaarch64" | |
| 2347 | #define TARGET_BIG_SYM aarch64_elfNN_be_vec | |
| 2348 | #define TARGET_BIG_NAME "elfNN-bigaarch64" | |
| a06ea964 | 2349 | |
| a06ea964 NC |
2350 | /* The linker script knows the section names for placement. |
| 2351 | The entry_names are used to do simple name mangling on the stubs. | |
| 2352 | Given a function name, and its type, the stub can be found. The | |
| 2353 | name can be changed. The only requirement is the %s be present. */ | |
| 2354 | #define STUB_ENTRY_NAME "__%s_veneer" | |
| 2355 | ||
| 2356 | /* The name of the dynamic interpreter. This is put in the .interp | |
| 2357 | section. */ | |
| 2358 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
| 2359 | ||
| 2360 | #define AARCH64_MAX_FWD_BRANCH_OFFSET \ | |
| 2361 | (((1 << 25) - 1) << 2) | |
| 2362 | #define AARCH64_MAX_BWD_BRANCH_OFFSET \ | |
| 2363 | (-((1 << 25) << 2)) | |
| 2364 | ||
| 2365 | #define AARCH64_MAX_ADRP_IMM ((1 << 20) - 1) | |
| 2366 | #define AARCH64_MIN_ADRP_IMM (-(1 << 20)) | |
| 2367 | ||
| 2368 | static int | |
| 2369 | aarch64_valid_for_adrp_p (bfd_vma value, bfd_vma place) | |
| 2370 | { | |
| 2371 | bfd_signed_vma offset = (bfd_signed_vma) (PG (value) - PG (place)) >> 12; | |
| 2372 | return offset <= AARCH64_MAX_ADRP_IMM && offset >= AARCH64_MIN_ADRP_IMM; | |
| 2373 | } | |
| 2374 | ||
| 2375 | static int | |
| 2376 | aarch64_valid_branch_p (bfd_vma value, bfd_vma place) | |
| 2377 | { | |
| 2378 | bfd_signed_vma offset = (bfd_signed_vma) (value - place); | |
| 2379 | return (offset <= AARCH64_MAX_FWD_BRANCH_OFFSET | |
| 2380 | && offset >= AARCH64_MAX_BWD_BRANCH_OFFSET); | |
| 2381 | } | |
| 2382 | ||
| 2383 | static const uint32_t aarch64_adrp_branch_stub [] = | |
| 2384 | { | |
| 2385 | 0x90000010, /* adrp ip0, X */ | |
| 2386 | /* R_AARCH64_ADR_HI21_PCREL(X) */ | |
| 2387 | 0x91000210, /* add ip0, ip0, :lo12:X */ | |
| 2388 | /* R_AARCH64_ADD_ABS_LO12_NC(X) */ | |
| 2389 | 0xd61f0200, /* br ip0 */ | |
| 2390 | }; | |
| 2391 | ||
| 2392 | static const uint32_t aarch64_long_branch_stub[] = | |
| 2393 | { | |
| cec5225b | 2394 | #if ARCH_SIZE == 64 |
| a06ea964 | 2395 | 0x58000090, /* ldr ip0, 1f */ |
| cec5225b YZ |
2396 | #else |
| 2397 | 0x18000090, /* ldr wip0, 1f */ | |
| 2398 | #endif | |
| a06ea964 NC |
2399 | 0x10000011, /* adr ip1, #0 */ |
| 2400 | 0x8b110210, /* add ip0, ip0, ip1 */ | |
| 2401 | 0xd61f0200, /* br ip0 */ | |
| cec5225b YZ |
2402 | 0x00000000, /* 1: .xword or .word |
| 2403 | R_AARCH64_PRELNN(X) + 12 | |
| a06ea964 NC |
2404 | */ |
| 2405 | 0x00000000, | |
| 2406 | }; | |
| 2407 | ||
| 68fcca92 JW |
2408 | static const uint32_t aarch64_erratum_835769_stub[] = |
| 2409 | { | |
| 2410 | 0x00000000, /* Placeholder for multiply accumulate. */ | |
| 2411 | 0x14000000, /* b <label> */ | |
| 2412 | }; | |
| 2413 | ||
| 4106101c MS |
2414 | static const uint32_t aarch64_erratum_843419_stub[] = |
| 2415 | { | |
| 2416 | 0x00000000, /* Placeholder for LDR instruction. */ | |
| 2417 | 0x14000000, /* b <label> */ | |
| 2418 | }; | |
| 2419 | ||
| a06ea964 NC |
2420 | /* Section name for stubs is the associated section name plus this |
| 2421 | string. */ | |
| 2422 | #define STUB_SUFFIX ".stub" | |
| 2423 | ||
| cec5225b | 2424 | enum elf_aarch64_stub_type |
| a06ea964 NC |
2425 | { |
| 2426 | aarch64_stub_none, | |
| 2427 | aarch64_stub_adrp_branch, | |
| 2428 | aarch64_stub_long_branch, | |
| 68fcca92 | 2429 | aarch64_stub_erratum_835769_veneer, |
| 4106101c | 2430 | aarch64_stub_erratum_843419_veneer, |
| a06ea964 NC |
2431 | }; |
| 2432 | ||
| cec5225b | 2433 | struct elf_aarch64_stub_hash_entry |
| a06ea964 NC |
2434 | { |
| 2435 | /* Base hash table entry structure. */ | |
| 2436 | struct bfd_hash_entry root; | |
| 2437 | ||
| 2438 | /* The stub section. */ | |
| 2439 | asection *stub_sec; | |
| 2440 | ||
| 2441 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 2442 | bfd_vma stub_offset; | |
| 2443 | ||
| 2444 | /* Given the symbol's value and its section we can determine its final | |
| 2445 | value when building the stubs (so the stub knows where to jump). */ | |
| 2446 | bfd_vma target_value; | |
| 2447 | asection *target_section; | |
| 2448 | ||
| cec5225b | 2449 | enum elf_aarch64_stub_type stub_type; |
| a06ea964 NC |
2450 | |
| 2451 | /* The symbol table entry, if any, that this was derived from. */ | |
| cec5225b | 2452 | struct elf_aarch64_link_hash_entry *h; |
| a06ea964 NC |
2453 | |
| 2454 | /* Destination symbol type */ | |
| 2455 | unsigned char st_type; | |
| 2456 | ||
| 2457 | /* Where this stub is being called from, or, in the case of combined | |
| 2458 | stub sections, the first input section in the group. */ | |
| 2459 | asection *id_sec; | |
| 2460 | ||
| 2461 | /* The name for the local symbol at the start of this stub. The | |
| 2462 | stub name in the hash table has to be unique; this does not, so | |
| 2463 | it can be friendlier. */ | |
| 2464 | char *output_name; | |
| 68fcca92 JW |
2465 | |
| 2466 | /* The instruction which caused this stub to be generated (only valid for | |
| 2467 | erratum 835769 workaround stubs at present). */ | |
| 2468 | uint32_t veneered_insn; | |
| 4106101c MS |
2469 | |
| 2470 | /* In an erratum 843419 workaround stub, the ADRP instruction offset. */ | |
| 2471 | bfd_vma adrp_offset; | |
| a06ea964 NC |
2472 | }; |
| 2473 | ||
| 2474 | /* Used to build a map of a section. This is required for mixed-endian | |
| 2475 | code/data. */ | |
| 2476 | ||
| cec5225b | 2477 | typedef struct elf_elf_section_map |
| a06ea964 NC |
2478 | { |
| 2479 | bfd_vma vma; | |
| 2480 | char type; | |
| 2481 | } | |
| cec5225b | 2482 | elf_aarch64_section_map; |
| a06ea964 NC |
2483 | |
| 2484 | ||
| 2485 | typedef struct _aarch64_elf_section_data | |
| 2486 | { | |
| 2487 | struct bfd_elf_section_data elf; | |
| 2488 | unsigned int mapcount; | |
| 2489 | unsigned int mapsize; | |
| cec5225b | 2490 | elf_aarch64_section_map *map; |
| a06ea964 NC |
2491 | } |
| 2492 | _aarch64_elf_section_data; | |
| 2493 | ||
| cec5225b | 2494 | #define elf_aarch64_section_data(sec) \ |
| a06ea964 NC |
2495 | ((_aarch64_elf_section_data *) elf_section_data (sec)) |
| 2496 | ||
| 4e8516b2 AP |
2497 | /* The size of the thread control block which is defined to be two pointers. */ |
| 2498 | #define TCB_SIZE (ARCH_SIZE/8)*2 | |
| a06ea964 NC |
2499 | |
| 2500 | struct elf_aarch64_local_symbol | |
| 2501 | { | |
| 2502 | unsigned int got_type; | |
| 2503 | bfd_signed_vma got_refcount; | |
| 2504 | bfd_vma got_offset; | |
| 2505 | ||
| 2506 | /* Offset of the GOTPLT entry reserved for the TLS descriptor. The | |
| 2507 | offset is from the end of the jump table and reserved entries | |
| 2508 | within the PLTGOT. | |
| 2509 | ||
| 2510 | The magic value (bfd_vma) -1 indicates that an offset has not be | |
| 2511 | allocated. */ | |
| 2512 | bfd_vma tlsdesc_got_jump_table_offset; | |
| 2513 | }; | |
| 2514 | ||
| 2515 | struct elf_aarch64_obj_tdata | |
| 2516 | { | |
| 2517 | struct elf_obj_tdata root; | |
| 2518 | ||
| 2519 | /* local symbol descriptors */ | |
| 2520 | struct elf_aarch64_local_symbol *locals; | |
| 2521 | ||
| 2522 | /* Zero to warn when linking objects with incompatible enum sizes. */ | |
| 2523 | int no_enum_size_warning; | |
| 2524 | ||
| 2525 | /* Zero to warn when linking objects with incompatible wchar_t sizes. */ | |
| 2526 | int no_wchar_size_warning; | |
| cd702818 SD |
2527 | |
| 2528 | /* All GNU_PROPERTY_AARCH64_FEATURE_1_AND properties. */ | |
| 2529 | uint32_t gnu_and_prop; | |
| 37c18eed SD |
2530 | |
| 2531 | /* Zero to warn when linking objects with incompatible | |
| 2532 | GNU_PROPERTY_AARCH64_FEATURE_1_BTI. */ | |
| 2533 | int no_bti_warn; | |
| 2534 | ||
| 2535 | /* PLT type based on security. */ | |
| 2536 | aarch64_plt_type plt_type; | |
| a06ea964 NC |
2537 | }; |
| 2538 | ||
| 2539 | #define elf_aarch64_tdata(bfd) \ | |
| 2540 | ((struct elf_aarch64_obj_tdata *) (bfd)->tdata.any) | |
| 2541 | ||
| cec5225b | 2542 | #define elf_aarch64_locals(bfd) (elf_aarch64_tdata (bfd)->locals) |
| a06ea964 NC |
2543 | |
| 2544 | #define is_aarch64_elf(bfd) \ | |
| 2545 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 2546 | && elf_tdata (bfd) != NULL \ | |
| 2547 | && elf_object_id (bfd) == AARCH64_ELF_DATA) | |
| 2548 | ||
| 2549 | static bfd_boolean | |
| cec5225b | 2550 | elfNN_aarch64_mkobject (bfd *abfd) |
| a06ea964 NC |
2551 | { |
| 2552 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_aarch64_obj_tdata), | |
| 2553 | AARCH64_ELF_DATA); | |
| 2554 | } | |
| 2555 | ||
| cec5225b YZ |
2556 | #define elf_aarch64_hash_entry(ent) \ |
| 2557 | ((struct elf_aarch64_link_hash_entry *)(ent)) | |
| a06ea964 NC |
2558 | |
| 2559 | #define GOT_UNKNOWN 0 | |
| 2560 | #define GOT_NORMAL 1 | |
| 2561 | #define GOT_TLS_GD 2 | |
| 2562 | #define GOT_TLS_IE 4 | |
| 2563 | #define GOT_TLSDESC_GD 8 | |
| 2564 | ||
| 2565 | #define GOT_TLS_GD_ANY_P(type) ((type & GOT_TLS_GD) || (type & GOT_TLSDESC_GD)) | |
| 2566 | ||
| 2567 | /* AArch64 ELF linker hash entry. */ | |
| cec5225b | 2568 | struct elf_aarch64_link_hash_entry |
| a06ea964 NC |
2569 | { |
| 2570 | struct elf_link_hash_entry root; | |
| 2571 | ||
| 2572 | /* Track dynamic relocs copied for this symbol. */ | |
| 2573 | struct elf_dyn_relocs *dyn_relocs; | |
| 2574 | ||
| a06ea964 NC |
2575 | /* Since PLT entries have variable size, we need to record the |
| 2576 | index into .got.plt instead of recomputing it from the PLT | |
| 2577 | offset. */ | |
| 2578 | bfd_signed_vma plt_got_offset; | |
| 2579 | ||
| 2580 | /* Bit mask representing the type of GOT entry(s) if any required by | |
| 2581 | this symbol. */ | |
| 2582 | unsigned int got_type; | |
| 2583 | ||
| 2584 | /* A pointer to the most recently used stub hash entry against this | |
| 2585 | symbol. */ | |
| cec5225b | 2586 | struct elf_aarch64_stub_hash_entry *stub_cache; |
| a06ea964 NC |
2587 | |
| 2588 | /* Offset of the GOTPLT entry reserved for the TLS descriptor. The offset | |
| 2589 | is from the end of the jump table and reserved entries within the PLTGOT. | |
| 2590 | ||
| 2591 | The magic value (bfd_vma) -1 indicates that an offset has not | |
| 2592 | be allocated. */ | |
| 2593 | bfd_vma tlsdesc_got_jump_table_offset; | |
| 2594 | }; | |
| 2595 | ||
| 2596 | static unsigned int | |
| cec5225b | 2597 | elfNN_aarch64_symbol_got_type (struct elf_link_hash_entry *h, |
| a06ea964 NC |
2598 | bfd *abfd, |
| 2599 | unsigned long r_symndx) | |
| 2600 | { | |
| 2601 | if (h) | |
| cec5225b | 2602 | return elf_aarch64_hash_entry (h)->got_type; |
| a06ea964 | 2603 | |
| cec5225b | 2604 | if (! elf_aarch64_locals (abfd)) |
| a06ea964 NC |
2605 | return GOT_UNKNOWN; |
| 2606 | ||
| cec5225b | 2607 | return elf_aarch64_locals (abfd)[r_symndx].got_type; |
| a06ea964 NC |
2608 | } |
| 2609 | ||
| a06ea964 | 2610 | /* Get the AArch64 elf linker hash table from a link_info structure. */ |
| cec5225b YZ |
2611 | #define elf_aarch64_hash_table(info) \ |
| 2612 | ((struct elf_aarch64_link_hash_table *) ((info)->hash)) | |
| a06ea964 NC |
2613 | |
| 2614 | #define aarch64_stub_hash_lookup(table, string, create, copy) \ | |
| cec5225b | 2615 | ((struct elf_aarch64_stub_hash_entry *) \ |
| a06ea964 NC |
2616 | bfd_hash_lookup ((table), (string), (create), (copy))) |
| 2617 | ||
| 2618 | /* AArch64 ELF linker hash table. */ | |
| cec5225b | 2619 | struct elf_aarch64_link_hash_table |
| a06ea964 NC |
2620 | { |
| 2621 | /* The main hash table. */ | |
| 2622 | struct elf_link_hash_table root; | |
| 2623 | ||
| 2624 | /* Nonzero to force PIC branch veneers. */ | |
| 2625 | int pic_veneer; | |
| 2626 | ||
| 68fcca92 JW |
2627 | /* Fix erratum 835769. */ |
| 2628 | int fix_erratum_835769; | |
| 2629 | ||
| 4106101c | 2630 | /* Fix erratum 843419. */ |
| 739b5c9c | 2631 | erratum_84319_opts fix_erratum_843419; |
| 4106101c | 2632 | |
| 1f56df9d JW |
2633 | /* Don't apply link-time values for dynamic relocations. */ |
| 2634 | int no_apply_dynamic_relocs; | |
| 2635 | ||
| a06ea964 NC |
2636 | /* The number of bytes in the initial entry in the PLT. */ |
| 2637 | bfd_size_type plt_header_size; | |
| 2638 | ||
| 37c18eed SD |
2639 | /* The bytes of the initial PLT entry. */ |
| 2640 | const bfd_byte *plt0_entry; | |
| 2641 | ||
| 2642 | /* The number of bytes in the subsequent PLT entries. */ | |
| a06ea964 NC |
2643 | bfd_size_type plt_entry_size; |
| 2644 | ||
| 37c18eed SD |
2645 | /* The bytes of the subsequent PLT entry. */ |
| 2646 | const bfd_byte *plt_entry; | |
| 2647 | ||
| a06ea964 NC |
2648 | /* Small local sym cache. */ |
| 2649 | struct sym_cache sym_cache; | |
| 2650 | ||
| 2651 | /* For convenience in allocate_dynrelocs. */ | |
| 2652 | bfd *obfd; | |
| 2653 | ||
| 2654 | /* The amount of space used by the reserved portion of the sgotplt | |
| 2655 | section, plus whatever space is used by the jump slots. */ | |
| 2656 | bfd_vma sgotplt_jump_table_size; | |
| 2657 | ||
| 2658 | /* The stub hash table. */ | |
| 2659 | struct bfd_hash_table stub_hash_table; | |
| 2660 | ||
| 2661 | /* Linker stub bfd. */ | |
| 2662 | bfd *stub_bfd; | |
| 2663 | ||
| 2664 | /* Linker call-backs. */ | |
| 2665 | asection *(*add_stub_section) (const char *, asection *); | |
| 2666 | void (*layout_sections_again) (void); | |
| 2667 | ||
| 2668 | /* Array to keep track of which stub sections have been created, and | |
| 2669 | information on stub grouping. */ | |
| 2670 | struct map_stub | |
| 2671 | { | |
| 2672 | /* This is the section to which stubs in the group will be | |
| 2673 | attached. */ | |
| 2674 | asection *link_sec; | |
| 2675 | /* The stub section. */ | |
| 2676 | asection *stub_sec; | |
| 2677 | } *stub_group; | |
| 2678 | ||
| cec5225b | 2679 | /* Assorted information used by elfNN_aarch64_size_stubs. */ |
| a06ea964 | 2680 | unsigned int bfd_count; |
| 7292b3ac | 2681 | unsigned int top_index; |
| a06ea964 NC |
2682 | asection **input_list; |
| 2683 | ||
| 823710d5 SN |
2684 | /* JUMP_SLOT relocs for variant PCS symbols may be present. */ |
| 2685 | int variant_pcs; | |
| 2686 | ||
| a06ea964 NC |
2687 | /* The offset into splt of the PLT entry for the TLS descriptor |
| 2688 | resolver. Special values are 0, if not necessary (or not found | |
| 2689 | to be necessary yet), and -1 if needed but not determined | |
| 2690 | yet. */ | |
| 2691 | bfd_vma tlsdesc_plt; | |
| 2692 | ||
| 37c18eed SD |
2693 | /* The number of bytes in the PLT enty for the TLS descriptor. */ |
| 2694 | bfd_size_type tlsdesc_plt_entry_size; | |
| 2695 | ||
| a06ea964 NC |
2696 | /* The GOT offset for the lazy trampoline. Communicated to the |
| 2697 | loader via DT_TLSDESC_GOT. The magic value (bfd_vma) -1 | |
| 2698 | indicates an offset is not allocated. */ | |
| 2699 | bfd_vma dt_tlsdesc_got; | |
| 1419bbe5 WN |
2700 | |
| 2701 | /* Used by local STT_GNU_IFUNC symbols. */ | |
| 2702 | htab_t loc_hash_table; | |
| 2703 | void * loc_hash_memory; | |
| a06ea964 NC |
2704 | }; |
| 2705 | ||
| a06ea964 NC |
2706 | /* Create an entry in an AArch64 ELF linker hash table. */ |
| 2707 | ||
| 2708 | static struct bfd_hash_entry * | |
| cec5225b | 2709 | elfNN_aarch64_link_hash_newfunc (struct bfd_hash_entry *entry, |
| a06ea964 NC |
2710 | struct bfd_hash_table *table, |
| 2711 | const char *string) | |
| 2712 | { | |
| cec5225b YZ |
2713 | struct elf_aarch64_link_hash_entry *ret = |
| 2714 | (struct elf_aarch64_link_hash_entry *) entry; | |
| a06ea964 NC |
2715 | |
| 2716 | /* Allocate the structure if it has not already been allocated by a | |
| 2717 | subclass. */ | |
| 2718 | if (ret == NULL) | |
| 2719 | ret = bfd_hash_allocate (table, | |
| cec5225b | 2720 | sizeof (struct elf_aarch64_link_hash_entry)); |
| a06ea964 NC |
2721 | if (ret == NULL) |
| 2722 | return (struct bfd_hash_entry *) ret; | |
| 2723 | ||
| 2724 | /* Call the allocation method of the superclass. */ | |
| cec5225b | 2725 | ret = ((struct elf_aarch64_link_hash_entry *) |
| a06ea964 NC |
2726 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
| 2727 | table, string)); | |
| 2728 | if (ret != NULL) | |
| 2729 | { | |
| 2730 | ret->dyn_relocs = NULL; | |
| a06ea964 NC |
2731 | ret->got_type = GOT_UNKNOWN; |
| 2732 | ret->plt_got_offset = (bfd_vma) - 1; | |
| 2733 | ret->stub_cache = NULL; | |
| 2734 | ret->tlsdesc_got_jump_table_offset = (bfd_vma) - 1; | |
| 2735 | } | |
| 2736 | ||
| 2737 | return (struct bfd_hash_entry *) ret; | |
| 2738 | } | |
| 2739 | ||
| 2740 | /* Initialize an entry in the stub hash table. */ | |
| 2741 | ||
| 2742 | static struct bfd_hash_entry * | |
| 2743 | stub_hash_newfunc (struct bfd_hash_entry *entry, | |
| 2744 | struct bfd_hash_table *table, const char *string) | |
| 2745 | { | |
| 2746 | /* Allocate the structure if it has not already been allocated by a | |
| 2747 | subclass. */ | |
| 2748 | if (entry == NULL) | |
| 2749 | { | |
| 2750 | entry = bfd_hash_allocate (table, | |
| 2751 | sizeof (struct | |
| cec5225b | 2752 | elf_aarch64_stub_hash_entry)); |
| a06ea964 NC |
2753 | if (entry == NULL) |
| 2754 | return entry; | |
| 2755 | } | |
| 2756 | ||
| 2757 | /* Call the allocation method of the superclass. */ | |
| 2758 | entry = bfd_hash_newfunc (entry, table, string); | |
| 2759 | if (entry != NULL) | |
| 2760 | { | |
| cec5225b | 2761 | struct elf_aarch64_stub_hash_entry *eh; |
| a06ea964 NC |
2762 | |
| 2763 | /* Initialize the local fields. */ | |
| cec5225b | 2764 | eh = (struct elf_aarch64_stub_hash_entry *) entry; |
| 4106101c | 2765 | eh->adrp_offset = 0; |
| a06ea964 NC |
2766 | eh->stub_sec = NULL; |
| 2767 | eh->stub_offset = 0; | |
| 2768 | eh->target_value = 0; | |
| 2769 | eh->target_section = NULL; | |
| 2770 | eh->stub_type = aarch64_stub_none; | |
| 2771 | eh->h = NULL; | |
| 2772 | eh->id_sec = NULL; | |
| 2773 | } | |
| 2774 | ||
| 2775 | return entry; | |
| 2776 | } | |
| 2777 | ||
| 1419bbe5 WN |
2778 | /* Compute a hash of a local hash entry. We use elf_link_hash_entry |
| 2779 | for local symbol so that we can handle local STT_GNU_IFUNC symbols | |
| 2780 | as global symbol. We reuse indx and dynstr_index for local symbol | |
| 2781 | hash since they aren't used by global symbols in this backend. */ | |
| 2782 | ||
| 2783 | static hashval_t | |
| 2784 | elfNN_aarch64_local_htab_hash (const void *ptr) | |
| 2785 | { | |
| 2786 | struct elf_link_hash_entry *h | |
| 2787 | = (struct elf_link_hash_entry *) ptr; | |
| 2788 | return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index); | |
| 2789 | } | |
| 2790 | ||
| 2791 | /* Compare local hash entries. */ | |
| 2792 | ||
| 2793 | static int | |
| 2794 | elfNN_aarch64_local_htab_eq (const void *ptr1, const void *ptr2) | |
| 2795 | { | |
| 2796 | struct elf_link_hash_entry *h1 | |
| 2797 | = (struct elf_link_hash_entry *) ptr1; | |
| 2798 | struct elf_link_hash_entry *h2 | |
| 2799 | = (struct elf_link_hash_entry *) ptr2; | |
| 2800 | ||
| 2801 | return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index; | |
| 2802 | } | |
| 2803 | ||
| 2804 | /* Find and/or create a hash entry for local symbol. */ | |
| 2805 | ||
| 2806 | static struct elf_link_hash_entry * | |
| 2807 | elfNN_aarch64_get_local_sym_hash (struct elf_aarch64_link_hash_table *htab, | |
| 2808 | bfd *abfd, const Elf_Internal_Rela *rel, | |
| 2809 | bfd_boolean create) | |
| 2810 | { | |
| 2811 | struct elf_aarch64_link_hash_entry e, *ret; | |
| 2812 | asection *sec = abfd->sections; | |
| 2813 | hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id, | |
| 2814 | ELFNN_R_SYM (rel->r_info)); | |
| 2815 | void **slot; | |
| 2816 | ||
| 2817 | e.root.indx = sec->id; | |
| 2818 | e.root.dynstr_index = ELFNN_R_SYM (rel->r_info); | |
| 2819 | slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h, | |
| 2820 | create ? INSERT : NO_INSERT); | |
| 2821 | ||
| 2822 | if (!slot) | |
| 2823 | return NULL; | |
| 2824 | ||
| 2825 | if (*slot) | |
| 2826 | { | |
| 2827 | ret = (struct elf_aarch64_link_hash_entry *) *slot; | |
| 2828 | return &ret->root; | |
| 2829 | } | |
| 2830 | ||
| 2831 | ret = (struct elf_aarch64_link_hash_entry *) | |
| 2832 | objalloc_alloc ((struct objalloc *) htab->loc_hash_memory, | |
| 2833 | sizeof (struct elf_aarch64_link_hash_entry)); | |
| 2834 | if (ret) | |
| 2835 | { | |
| 2836 | memset (ret, 0, sizeof (*ret)); | |
| 2837 | ret->root.indx = sec->id; | |
| 2838 | ret->root.dynstr_index = ELFNN_R_SYM (rel->r_info); | |
| 2839 | ret->root.dynindx = -1; | |
| 2840 | *slot = ret; | |
| 2841 | } | |
| 2842 | return &ret->root; | |
| 2843 | } | |
| a06ea964 NC |
2844 | |
| 2845 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
| 2846 | ||
| 2847 | static void | |
| cec5225b | 2848 | elfNN_aarch64_copy_indirect_symbol (struct bfd_link_info *info, |
| a06ea964 NC |
2849 | struct elf_link_hash_entry *dir, |
| 2850 | struct elf_link_hash_entry *ind) | |
| 2851 | { | |
| cec5225b | 2852 | struct elf_aarch64_link_hash_entry *edir, *eind; |
| a06ea964 | 2853 | |
| cec5225b YZ |
2854 | edir = (struct elf_aarch64_link_hash_entry *) dir; |
| 2855 | eind = (struct elf_aarch64_link_hash_entry *) ind; | |
| a06ea964 NC |
2856 | |
| 2857 | if (eind->dyn_relocs != NULL) | |
| 2858 | { | |
| 2859 | if (edir->dyn_relocs != NULL) | |
| 2860 | { | |
| 2861 | struct elf_dyn_relocs **pp; | |
| 2862 | struct elf_dyn_relocs *p; | |
| 2863 | ||
| 2864 | /* Add reloc counts against the indirect sym to the direct sym | |
| 2865 | list. Merge any entries against the same section. */ | |
| 2866 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) | |
| 2867 | { | |
| 2868 | struct elf_dyn_relocs *q; | |
| 2869 | ||
| 2870 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 2871 | if (q->sec == p->sec) | |
| 2872 | { | |
| 2873 | q->pc_count += p->pc_count; | |
| 2874 | q->count += p->count; | |
| 2875 | *pp = p->next; | |
| 2876 | break; | |
| 2877 | } | |
| 2878 | if (q == NULL) | |
| 2879 | pp = &p->next; | |
| 2880 | } | |
| 2881 | *pp = edir->dyn_relocs; | |
| 2882 | } | |
| 2883 | ||
| 2884 | edir->dyn_relocs = eind->dyn_relocs; | |
| 2885 | eind->dyn_relocs = NULL; | |
| 2886 | } | |
| 2887 | ||
| a06ea964 NC |
2888 | if (ind->root.type == bfd_link_hash_indirect) |
| 2889 | { | |
| 2890 | /* Copy over PLT info. */ | |
| 2891 | if (dir->got.refcount <= 0) | |
| 2892 | { | |
| 2893 | edir->got_type = eind->got_type; | |
| 2894 | eind->got_type = GOT_UNKNOWN; | |
| 2895 | } | |
| 2896 | } | |
| 2897 | ||
| 2898 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
| 2899 | } | |
| 2900 | ||
| 823710d5 SN |
2901 | /* Merge non-visibility st_other attributes. */ |
| 2902 | ||
| 2903 | static void | |
| 2904 | elfNN_aarch64_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 2905 | const Elf_Internal_Sym *isym, | |
| 2906 | bfd_boolean definition ATTRIBUTE_UNUSED, | |
| 2907 | bfd_boolean dynamic ATTRIBUTE_UNUSED) | |
| 2908 | { | |
| 2909 | unsigned int isym_sto = isym->st_other & ~ELF_ST_VISIBILITY (-1); | |
| 2910 | unsigned int h_sto = h->other & ~ELF_ST_VISIBILITY (-1); | |
| 2911 | ||
| 2912 | if (isym_sto == h_sto) | |
| 2913 | return; | |
| 2914 | ||
| 2915 | if (isym_sto & ~STO_AARCH64_VARIANT_PCS) | |
| 2916 | /* Not fatal, this callback cannot fail. */ | |
| 2917 | _bfd_error_handler (_("unknown attribute for symbol `%s': 0x%02x"), | |
| 2918 | h->root.root.string, isym_sto); | |
| 2919 | ||
| 2920 | /* Note: Ideally we would warn about any attribute mismatch, but | |
| 2921 | this api does not allow that without substantial changes. */ | |
| 2922 | if (isym_sto & STO_AARCH64_VARIANT_PCS) | |
| 2923 | h->other |= STO_AARCH64_VARIANT_PCS; | |
| 2924 | } | |
| 2925 | ||
| 68faa637 AM |
2926 | /* Destroy an AArch64 elf linker hash table. */ |
| 2927 | ||
| 2928 | static void | |
| d495ab0d | 2929 | elfNN_aarch64_link_hash_table_free (bfd *obfd) |
| 68faa637 AM |
2930 | { |
| 2931 | struct elf_aarch64_link_hash_table *ret | |
| d495ab0d | 2932 | = (struct elf_aarch64_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
2933 | |
| 2934 | if (ret->loc_hash_table) | |
| 2935 | htab_delete (ret->loc_hash_table); | |
| 2936 | if (ret->loc_hash_memory) | |
| 2937 | objalloc_free ((struct objalloc *) ret->loc_hash_memory); | |
| 2938 | ||
| 2939 | bfd_hash_table_free (&ret->stub_hash_table); | |
| d495ab0d | 2940 | _bfd_elf_link_hash_table_free (obfd); |
| 68faa637 AM |
2941 | } |
| 2942 | ||
| a06ea964 NC |
2943 | /* Create an AArch64 elf linker hash table. */ |
| 2944 | ||
| 2945 | static struct bfd_link_hash_table * | |
| cec5225b | 2946 | elfNN_aarch64_link_hash_table_create (bfd *abfd) |
| a06ea964 | 2947 | { |
| cec5225b YZ |
2948 | struct elf_aarch64_link_hash_table *ret; |
| 2949 | bfd_size_type amt = sizeof (struct elf_aarch64_link_hash_table); | |
| a06ea964 | 2950 | |
| 7bf52ea2 | 2951 | ret = bfd_zmalloc (amt); |
| a06ea964 NC |
2952 | if (ret == NULL) |
| 2953 | return NULL; | |
| 2954 | ||
| 2955 | if (!_bfd_elf_link_hash_table_init | |
| cec5225b YZ |
2956 | (&ret->root, abfd, elfNN_aarch64_link_hash_newfunc, |
| 2957 | sizeof (struct elf_aarch64_link_hash_entry), AARCH64_ELF_DATA)) | |
| a06ea964 NC |
2958 | { |
| 2959 | free (ret); | |
| 2960 | return NULL; | |
| 2961 | } | |
| 2962 | ||
| a06ea964 | 2963 | ret->plt_header_size = PLT_ENTRY_SIZE; |
| 37c18eed | 2964 | ret->plt0_entry = elfNN_aarch64_small_plt0_entry; |
| a06ea964 | 2965 | ret->plt_entry_size = PLT_SMALL_ENTRY_SIZE; |
| 37c18eed SD |
2966 | ret->plt_entry = elfNN_aarch64_small_plt_entry; |
| 2967 | ret->tlsdesc_plt_entry_size = PLT_TLSDESC_ENTRY_SIZE; | |
| a06ea964 | 2968 | ret->obfd = abfd; |
| a06ea964 NC |
2969 | ret->dt_tlsdesc_got = (bfd_vma) - 1; |
| 2970 | ||
| 2971 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc, | |
| cec5225b | 2972 | sizeof (struct elf_aarch64_stub_hash_entry))) |
| a06ea964 | 2973 | { |
| d495ab0d | 2974 | _bfd_elf_link_hash_table_free (abfd); |
| a06ea964 NC |
2975 | return NULL; |
| 2976 | } | |
| 2977 | ||
| 1419bbe5 WN |
2978 | ret->loc_hash_table = htab_try_create (1024, |
| 2979 | elfNN_aarch64_local_htab_hash, | |
| 2980 | elfNN_aarch64_local_htab_eq, | |
| 2981 | NULL); | |
| 2982 | ret->loc_hash_memory = objalloc_create (); | |
| 2983 | if (!ret->loc_hash_table || !ret->loc_hash_memory) | |
| 2984 | { | |
| d495ab0d | 2985 | elfNN_aarch64_link_hash_table_free (abfd); |
| 1419bbe5 WN |
2986 | return NULL; |
| 2987 | } | |
| d495ab0d | 2988 | ret->root.root.hash_table_free = elfNN_aarch64_link_hash_table_free; |
| 1419bbe5 | 2989 | |
| a06ea964 NC |
2990 | return &ret->root.root; |
| 2991 | } | |
| 2992 | ||
| 1d75a8e2 NC |
2993 | /* Perform relocation R_TYPE. Returns TRUE upon success, FALSE otherwise. */ |
| 2994 | ||
| a06ea964 NC |
2995 | static bfd_boolean |
| 2996 | aarch64_relocate (unsigned int r_type, bfd *input_bfd, asection *input_section, | |
| 2997 | bfd_vma offset, bfd_vma value) | |
| 2998 | { | |
| 2999 | reloc_howto_type *howto; | |
| 3000 | bfd_vma place; | |
| 3001 | ||
| 0aa13fee | 3002 | howto = elfNN_aarch64_howto_from_type (input_bfd, r_type); |
| a06ea964 NC |
3003 | place = (input_section->output_section->vma + input_section->output_offset |
| 3004 | + offset); | |
| caed7120 | 3005 | |
| 0aa13fee | 3006 | r_type = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| 652afeef TC |
3007 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, r_type, place, |
| 3008 | value, 0, FALSE); | |
| caed7120 YZ |
3009 | return _bfd_aarch64_elf_put_addend (input_bfd, |
| 3010 | input_section->contents + offset, r_type, | |
| 1d75a8e2 | 3011 | howto, value) == bfd_reloc_ok; |
| a06ea964 NC |
3012 | } |
| 3013 | ||
| cec5225b | 3014 | static enum elf_aarch64_stub_type |
| a06ea964 NC |
3015 | aarch64_select_branch_stub (bfd_vma value, bfd_vma place) |
| 3016 | { | |
| 3017 | if (aarch64_valid_for_adrp_p (value, place)) | |
| 3018 | return aarch64_stub_adrp_branch; | |
| 3019 | return aarch64_stub_long_branch; | |
| 3020 | } | |
| 3021 | ||
| 3022 | /* Determine the type of stub needed, if any, for a call. */ | |
| 3023 | ||
| cec5225b | 3024 | static enum elf_aarch64_stub_type |
| 9a228467 | 3025 | aarch64_type_of_stub (asection *input_sec, |
| a06ea964 | 3026 | const Elf_Internal_Rela *rel, |
| f678ded7 | 3027 | asection *sym_sec, |
| a06ea964 | 3028 | unsigned char st_type, |
| a06ea964 NC |
3029 | bfd_vma destination) |
| 3030 | { | |
| 3031 | bfd_vma location; | |
| 3032 | bfd_signed_vma branch_offset; | |
| 3033 | unsigned int r_type; | |
| cec5225b | 3034 | enum elf_aarch64_stub_type stub_type = aarch64_stub_none; |
| a06ea964 | 3035 | |
| f678ded7 | 3036 | if (st_type != STT_FUNC |
| 2f340668 | 3037 | && (sym_sec == input_sec)) |
| a06ea964 NC |
3038 | return stub_type; |
| 3039 | ||
| a06ea964 NC |
3040 | /* Determine where the call point is. */ |
| 3041 | location = (input_sec->output_offset | |
| 3042 | + input_sec->output_section->vma + rel->r_offset); | |
| 3043 | ||
| 3044 | branch_offset = (bfd_signed_vma) (destination - location); | |
| 3045 | ||
| cec5225b | 3046 | r_type = ELFNN_R_TYPE (rel->r_info); |
| a06ea964 NC |
3047 | |
| 3048 | /* We don't want to redirect any old unconditional jump in this way, | |
| 3049 | only one which is being used for a sibcall, where it is | |
| 3050 | acceptable for the IP0 and IP1 registers to be clobbered. */ | |
| a6bb11b2 | 3051 | if ((r_type == AARCH64_R (CALL26) || r_type == AARCH64_R (JUMP26)) |
| a06ea964 NC |
3052 | && (branch_offset > AARCH64_MAX_FWD_BRANCH_OFFSET |
| 3053 | || branch_offset < AARCH64_MAX_BWD_BRANCH_OFFSET)) | |
| 3054 | { | |
| 3055 | stub_type = aarch64_stub_long_branch; | |
| 3056 | } | |
| 3057 | ||
| 3058 | return stub_type; | |
| 3059 | } | |
| 3060 | ||
| 3061 | /* Build a name for an entry in the stub hash table. */ | |
| 3062 | ||
| 3063 | static char * | |
| cec5225b | 3064 | elfNN_aarch64_stub_name (const asection *input_section, |
| a06ea964 | 3065 | const asection *sym_sec, |
| cec5225b | 3066 | const struct elf_aarch64_link_hash_entry *hash, |
| a06ea964 NC |
3067 | const Elf_Internal_Rela *rel) |
| 3068 | { | |
| 3069 | char *stub_name; | |
| 3070 | bfd_size_type len; | |
| 3071 | ||
| 3072 | if (hash) | |
| 3073 | { | |
| 3074 | len = 8 + 1 + strlen (hash->root.root.root.string) + 1 + 16 + 1; | |
| 3075 | stub_name = bfd_malloc (len); | |
| 3076 | if (stub_name != NULL) | |
| 3077 | snprintf (stub_name, len, "%08x_%s+%" BFD_VMA_FMT "x", | |
| 3078 | (unsigned int) input_section->id, | |
| 3079 | hash->root.root.root.string, | |
| 3080 | rel->r_addend); | |
| 3081 | } | |
| 3082 | else | |
| 3083 | { | |
| 3084 | len = 8 + 1 + 8 + 1 + 8 + 1 + 16 + 1; | |
| 3085 | stub_name = bfd_malloc (len); | |
| 3086 | if (stub_name != NULL) | |
| 3087 | snprintf (stub_name, len, "%08x_%x:%x+%" BFD_VMA_FMT "x", | |
| 3088 | (unsigned int) input_section->id, | |
| 3089 | (unsigned int) sym_sec->id, | |
| cec5225b | 3090 | (unsigned int) ELFNN_R_SYM (rel->r_info), |
| a06ea964 NC |
3091 | rel->r_addend); |
| 3092 | } | |
| 3093 | ||
| 3094 | return stub_name; | |
| 3095 | } | |
| 3096 | ||
| 7f784814 JW |
3097 | /* Return TRUE if symbol H should be hashed in the `.gnu.hash' section. For |
| 3098 | executable PLT slots where the executable never takes the address of those | |
| 3099 | functions, the function symbols are not added to the hash table. */ | |
| 3100 | ||
| 3101 | static bfd_boolean | |
| 3102 | elf_aarch64_hash_symbol (struct elf_link_hash_entry *h) | |
| 3103 | { | |
| 3104 | if (h->plt.offset != (bfd_vma) -1 | |
| 3105 | && !h->def_regular | |
| 3106 | && !h->pointer_equality_needed) | |
| 3107 | return FALSE; | |
| 3108 | ||
| 3109 | return _bfd_elf_hash_symbol (h); | |
| 3110 | } | |
| 3111 | ||
| 3112 | ||
| a06ea964 NC |
3113 | /* Look up an entry in the stub hash. Stub entries are cached because |
| 3114 | creating the stub name takes a bit of time. */ | |
| 3115 | ||
| cec5225b YZ |
3116 | static struct elf_aarch64_stub_hash_entry * |
| 3117 | elfNN_aarch64_get_stub_entry (const asection *input_section, | |
| a06ea964 NC |
3118 | const asection *sym_sec, |
| 3119 | struct elf_link_hash_entry *hash, | |
| 3120 | const Elf_Internal_Rela *rel, | |
| cec5225b | 3121 | struct elf_aarch64_link_hash_table *htab) |
| a06ea964 | 3122 | { |
| cec5225b YZ |
3123 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| 3124 | struct elf_aarch64_link_hash_entry *h = | |
| 3125 | (struct elf_aarch64_link_hash_entry *) hash; | |
| a06ea964 NC |
3126 | const asection *id_sec; |
| 3127 | ||
| 3128 | if ((input_section->flags & SEC_CODE) == 0) | |
| 3129 | return NULL; | |
| 3130 | ||
| 3131 | /* If this input section is part of a group of sections sharing one | |
| 3132 | stub section, then use the id of the first section in the group. | |
| 3133 | Stub names need to include a section id, as there may well be | |
| 3134 | more than one stub used to reach say, printf, and we need to | |
| 3135 | distinguish between them. */ | |
| 3136 | id_sec = htab->stub_group[input_section->id].link_sec; | |
| 3137 | ||
| 3138 | if (h != NULL && h->stub_cache != NULL | |
| 3139 | && h->stub_cache->h == h && h->stub_cache->id_sec == id_sec) | |
| 3140 | { | |
| 3141 | stub_entry = h->stub_cache; | |
| 3142 | } | |
| 3143 | else | |
| 3144 | { | |
| 3145 | char *stub_name; | |
| 3146 | ||
| cec5225b | 3147 | stub_name = elfNN_aarch64_stub_name (id_sec, sym_sec, h, rel); |
| a06ea964 NC |
3148 | if (stub_name == NULL) |
| 3149 | return NULL; | |
| 3150 | ||
| 3151 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, | |
| 3152 | stub_name, FALSE, FALSE); | |
| 3153 | if (h != NULL) | |
| 3154 | h->stub_cache = stub_entry; | |
| 3155 | ||
| 3156 | free (stub_name); | |
| 3157 | } | |
| 3158 | ||
| 3159 | return stub_entry; | |
| 3160 | } | |
| 3161 | ||
| a06ea964 | 3162 | |
| 66585675 MS |
3163 | /* Create a stub section. */ |
| 3164 | ||
| 3165 | static asection * | |
| 3166 | _bfd_aarch64_create_stub_section (asection *section, | |
| 3167 | struct elf_aarch64_link_hash_table *htab) | |
| 3168 | { | |
| 3169 | size_t namelen; | |
| 3170 | bfd_size_type len; | |
| 3171 | char *s_name; | |
| 3172 | ||
| 3173 | namelen = strlen (section->name); | |
| 3174 | len = namelen + sizeof (STUB_SUFFIX); | |
| 3175 | s_name = bfd_alloc (htab->stub_bfd, len); | |
| 3176 | if (s_name == NULL) | |
| 3177 | return NULL; | |
| 3178 | ||
| 3179 | memcpy (s_name, section->name, namelen); | |
| 3180 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 3181 | return (*htab->add_stub_section) (s_name, section); | |
| 3182 | } | |
| 3183 | ||
| 3184 | ||
| fc6d53be MS |
3185 | /* Find or create a stub section for a link section. |
| 3186 | ||
| 3187 | Fix or create the stub section used to collect stubs attached to | |
| 3188 | the specified link section. */ | |
| 3189 | ||
| 3190 | static asection * | |
| 3191 | _bfd_aarch64_get_stub_for_link_section (asection *link_section, | |
| 3192 | struct elf_aarch64_link_hash_table *htab) | |
| 3193 | { | |
| 3194 | if (htab->stub_group[link_section->id].stub_sec == NULL) | |
| 3195 | htab->stub_group[link_section->id].stub_sec | |
| 3196 | = _bfd_aarch64_create_stub_section (link_section, htab); | |
| 3197 | return htab->stub_group[link_section->id].stub_sec; | |
| 3198 | } | |
| 3199 | ||
| 3200 | ||
| ef857521 MS |
3201 | /* Find or create a stub section in the stub group for an input |
| 3202 | section. */ | |
| 3203 | ||
| 3204 | static asection * | |
| 3205 | _bfd_aarch64_create_or_find_stub_sec (asection *section, | |
| 3206 | struct elf_aarch64_link_hash_table *htab) | |
| a06ea964 | 3207 | { |
| fc6d53be MS |
3208 | asection *link_sec = htab->stub_group[section->id].link_sec; |
| 3209 | return _bfd_aarch64_get_stub_for_link_section (link_sec, htab); | |
| ef857521 MS |
3210 | } |
| 3211 | ||
| 3212 | ||
| 3213 | /* Add a new stub entry in the stub group associated with an input | |
| 3214 | section to the stub hash. Not all fields of the new stub entry are | |
| 3215 | initialised. */ | |
| 3216 | ||
| 3217 | static struct elf_aarch64_stub_hash_entry * | |
| 3218 | _bfd_aarch64_add_stub_entry_in_group (const char *stub_name, | |
| 3219 | asection *section, | |
| 3220 | struct elf_aarch64_link_hash_table *htab) | |
| 3221 | { | |
| 3222 | asection *link_sec; | |
| 3223 | asection *stub_sec; | |
| 3224 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 3225 | ||
| 3226 | link_sec = htab->stub_group[section->id].link_sec; | |
| 3227 | stub_sec = _bfd_aarch64_create_or_find_stub_sec (section, htab); | |
| 3228 | ||
| a06ea964 NC |
3229 | /* Enter this entry into the linker stub hash table. */ |
| 3230 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| 3231 | TRUE, FALSE); | |
| 3232 | if (stub_entry == NULL) | |
| 3233 | { | |
| 695344c0 | 3234 | /* xgettext:c-format */ |
| 871b3ab2 | 3235 | _bfd_error_handler (_("%pB: cannot create stub entry %s"), |
| 4eca0228 | 3236 | section->owner, stub_name); |
| a06ea964 NC |
3237 | return NULL; |
| 3238 | } | |
| 3239 | ||
| 3240 | stub_entry->stub_sec = stub_sec; | |
| 3241 | stub_entry->stub_offset = 0; | |
| 3242 | stub_entry->id_sec = link_sec; | |
| 3243 | ||
| 3244 | return stub_entry; | |
| 3245 | } | |
| 3246 | ||
| 4106101c MS |
3247 | /* Add a new stub entry in the final stub section to the stub hash. |
| 3248 | Not all fields of the new stub entry are initialised. */ | |
| 3249 | ||
| 3250 | static struct elf_aarch64_stub_hash_entry * | |
| 3251 | _bfd_aarch64_add_stub_entry_after (const char *stub_name, | |
| 3252 | asection *link_section, | |
| 3253 | struct elf_aarch64_link_hash_table *htab) | |
| 3254 | { | |
| 3255 | asection *stub_sec; | |
| 3256 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 3257 | ||
| 739b5c9c TC |
3258 | stub_sec = NULL; |
| 3259 | /* Only create the actual stub if we will end up needing it. */ | |
| 3260 | if (htab->fix_erratum_843419 & ERRAT_ADRP) | |
| 3261 | stub_sec = _bfd_aarch64_get_stub_for_link_section (link_section, htab); | |
| 4106101c MS |
3262 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
| 3263 | TRUE, FALSE); | |
| 3264 | if (stub_entry == NULL) | |
| 3265 | { | |
| 4eca0228 | 3266 | _bfd_error_handler (_("cannot create stub entry %s"), stub_name); |
| 4106101c MS |
3267 | return NULL; |
| 3268 | } | |
| 3269 | ||
| 3270 | stub_entry->stub_sec = stub_sec; | |
| 3271 | stub_entry->stub_offset = 0; | |
| 3272 | stub_entry->id_sec = link_section; | |
| 3273 | ||
| 3274 | return stub_entry; | |
| 3275 | } | |
| 3276 | ||
| 3277 | ||
| a06ea964 NC |
3278 | static bfd_boolean |
| 3279 | aarch64_build_one_stub (struct bfd_hash_entry *gen_entry, | |
| 3280 | void *in_arg ATTRIBUTE_UNUSED) | |
| 3281 | { | |
| cec5225b | 3282 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| a06ea964 NC |
3283 | asection *stub_sec; |
| 3284 | bfd *stub_bfd; | |
| 3285 | bfd_byte *loc; | |
| 3286 | bfd_vma sym_value; | |
| 68fcca92 JW |
3287 | bfd_vma veneered_insn_loc; |
| 3288 | bfd_vma veneer_entry_loc; | |
| 3289 | bfd_signed_vma branch_offset = 0; | |
| a06ea964 NC |
3290 | unsigned int template_size; |
| 3291 | const uint32_t *template; | |
| 3292 | unsigned int i; | |
| 3293 | ||
| 3294 | /* Massage our args to the form they really have. */ | |
| cec5225b | 3295 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; |
| a06ea964 NC |
3296 | |
| 3297 | stub_sec = stub_entry->stub_sec; | |
| 3298 | ||
| 3299 | /* Make a note of the offset within the stubs for this entry. */ | |
| 3300 | stub_entry->stub_offset = stub_sec->size; | |
| 3301 | loc = stub_sec->contents + stub_entry->stub_offset; | |
| 3302 | ||
| 3303 | stub_bfd = stub_sec->owner; | |
| 3304 | ||
| 3305 | /* This is the address of the stub destination. */ | |
| 3306 | sym_value = (stub_entry->target_value | |
| 3307 | + stub_entry->target_section->output_offset | |
| 3308 | + stub_entry->target_section->output_section->vma); | |
| 3309 | ||
| 3310 | if (stub_entry->stub_type == aarch64_stub_long_branch) | |
| 3311 | { | |
| 3312 | bfd_vma place = (stub_entry->stub_offset + stub_sec->output_section->vma | |
| 3313 | + stub_sec->output_offset); | |
| 3314 | ||
| 3315 | /* See if we can relax the stub. */ | |
| 3316 | if (aarch64_valid_for_adrp_p (sym_value, place)) | |
| 3317 | stub_entry->stub_type = aarch64_select_branch_stub (sym_value, place); | |
| 3318 | } | |
| 3319 | ||
| 3320 | switch (stub_entry->stub_type) | |
| 3321 | { | |
| 3322 | case aarch64_stub_adrp_branch: | |
| 3323 | template = aarch64_adrp_branch_stub; | |
| 3324 | template_size = sizeof (aarch64_adrp_branch_stub); | |
| 3325 | break; | |
| 3326 | case aarch64_stub_long_branch: | |
| 3327 | template = aarch64_long_branch_stub; | |
| 3328 | template_size = sizeof (aarch64_long_branch_stub); | |
| 3329 | break; | |
| 68fcca92 JW |
3330 | case aarch64_stub_erratum_835769_veneer: |
| 3331 | template = aarch64_erratum_835769_stub; | |
| 3332 | template_size = sizeof (aarch64_erratum_835769_stub); | |
| 3333 | break; | |
| 4106101c MS |
3334 | case aarch64_stub_erratum_843419_veneer: |
| 3335 | template = aarch64_erratum_843419_stub; | |
| 3336 | template_size = sizeof (aarch64_erratum_843419_stub); | |
| 3337 | break; | |
| a06ea964 | 3338 | default: |
| 8e2fe09f | 3339 | abort (); |
| a06ea964 NC |
3340 | } |
| 3341 | ||
| 3342 | for (i = 0; i < (template_size / sizeof template[0]); i++) | |
| 3343 | { | |
| 3344 | bfd_putl32 (template[i], loc); | |
| 3345 | loc += 4; | |
| 3346 | } | |
| 3347 | ||
| 3348 | template_size = (template_size + 7) & ~7; | |
| 3349 | stub_sec->size += template_size; | |
| 3350 | ||
| 3351 | switch (stub_entry->stub_type) | |
| 3352 | { | |
| 3353 | case aarch64_stub_adrp_branch: | |
| 1d75a8e2 NC |
3354 | if (!aarch64_relocate (AARCH64_R (ADR_PREL_PG_HI21), stub_bfd, stub_sec, |
| 3355 | stub_entry->stub_offset, sym_value)) | |
| a06ea964 NC |
3356 | /* The stub would not have been relaxed if the offset was out |
| 3357 | of range. */ | |
| 3358 | BFD_FAIL (); | |
| 3359 | ||
| 1d75a8e2 NC |
3360 | if (!aarch64_relocate (AARCH64_R (ADD_ABS_LO12_NC), stub_bfd, stub_sec, |
| 3361 | stub_entry->stub_offset + 4, sym_value)) | |
| 93ca8569 | 3362 | BFD_FAIL (); |
| a06ea964 NC |
3363 | break; |
| 3364 | ||
| 3365 | case aarch64_stub_long_branch: | |
| 3366 | /* We want the value relative to the address 12 bytes back from the | |
| 07d6d2b8 | 3367 | value itself. */ |
| 1d75a8e2 NC |
3368 | if (!aarch64_relocate (AARCH64_R (PRELNN), stub_bfd, stub_sec, |
| 3369 | stub_entry->stub_offset + 16, sym_value + 12)) | |
| 93ca8569 | 3370 | BFD_FAIL (); |
| a06ea964 | 3371 | break; |
| 68fcca92 JW |
3372 | |
| 3373 | case aarch64_stub_erratum_835769_veneer: | |
| 3374 | veneered_insn_loc = stub_entry->target_section->output_section->vma | |
| 3375 | + stub_entry->target_section->output_offset | |
| 3376 | + stub_entry->target_value; | |
| 3377 | veneer_entry_loc = stub_entry->stub_sec->output_section->vma | |
| 3378 | + stub_entry->stub_sec->output_offset | |
| 3379 | + stub_entry->stub_offset; | |
| 3380 | branch_offset = veneered_insn_loc - veneer_entry_loc; | |
| 3381 | branch_offset >>= 2; | |
| 3382 | branch_offset &= 0x3ffffff; | |
| 3383 | bfd_putl32 (stub_entry->veneered_insn, | |
| 3384 | stub_sec->contents + stub_entry->stub_offset); | |
| 3385 | bfd_putl32 (template[1] | branch_offset, | |
| 3386 | stub_sec->contents + stub_entry->stub_offset + 4); | |
| 3387 | break; | |
| 3388 | ||
| 4106101c | 3389 | case aarch64_stub_erratum_843419_veneer: |
| 1d75a8e2 NC |
3390 | if (!aarch64_relocate (AARCH64_R (JUMP26), stub_bfd, stub_sec, |
| 3391 | stub_entry->stub_offset + 4, sym_value + 4)) | |
| 4106101c MS |
3392 | BFD_FAIL (); |
| 3393 | break; | |
| 3394 | ||
| a06ea964 | 3395 | default: |
| 8e2fe09f | 3396 | abort (); |
| a06ea964 NC |
3397 | } |
| 3398 | ||
| 3399 | return TRUE; | |
| 3400 | } | |
| 3401 | ||
| 3402 | /* As above, but don't actually build the stub. Just bump offset so | |
| 3403 | we know stub section sizes. */ | |
| 3404 | ||
| 3405 | static bfd_boolean | |
| 739b5c9c | 3406 | aarch64_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| a06ea964 | 3407 | { |
| cec5225b | 3408 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| 739b5c9c | 3409 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 NC |
3410 | int size; |
| 3411 | ||
| 3412 | /* Massage our args to the form they really have. */ | |
| cec5225b | 3413 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; |
| 739b5c9c | 3414 | htab = (struct elf_aarch64_link_hash_table *) in_arg; |
| a06ea964 NC |
3415 | |
| 3416 | switch (stub_entry->stub_type) | |
| 3417 | { | |
| 3418 | case aarch64_stub_adrp_branch: | |
| 3419 | size = sizeof (aarch64_adrp_branch_stub); | |
| 3420 | break; | |
| 3421 | case aarch64_stub_long_branch: | |
| 3422 | size = sizeof (aarch64_long_branch_stub); | |
| 3423 | break; | |
| 68fcca92 JW |
3424 | case aarch64_stub_erratum_835769_veneer: |
| 3425 | size = sizeof (aarch64_erratum_835769_stub); | |
| 3426 | break; | |
| 4106101c | 3427 | case aarch64_stub_erratum_843419_veneer: |
| 739b5c9c TC |
3428 | { |
| 3429 | if (htab->fix_erratum_843419 == ERRAT_ADR) | |
| 3430 | return TRUE; | |
| 3431 | size = sizeof (aarch64_erratum_843419_stub); | |
| 3432 | } | |
| 4106101c | 3433 | break; |
| a06ea964 | 3434 | default: |
| 8e2fe09f | 3435 | abort (); |
| a06ea964 NC |
3436 | } |
| 3437 | ||
| 3438 | size = (size + 7) & ~7; | |
| 3439 | stub_entry->stub_sec->size += size; | |
| 3440 | return TRUE; | |
| 3441 | } | |
| 3442 | ||
| 3443 | /* External entry points for sizing and building linker stubs. */ | |
| 3444 | ||
| 3445 | /* Set up various things so that we can make a list of input sections | |
| 3446 | for each output section included in the link. Returns -1 on error, | |
| 3447 | 0 when no stubs will be needed, and 1 on success. */ | |
| 3448 | ||
| 3449 | int | |
| cec5225b | 3450 | elfNN_aarch64_setup_section_lists (bfd *output_bfd, |
| a06ea964 NC |
3451 | struct bfd_link_info *info) |
| 3452 | { | |
| 3453 | bfd *input_bfd; | |
| 3454 | unsigned int bfd_count; | |
| 7292b3ac | 3455 | unsigned int top_id, top_index; |
| a06ea964 NC |
3456 | asection *section; |
| 3457 | asection **input_list, **list; | |
| 3458 | bfd_size_type amt; | |
| cec5225b YZ |
3459 | struct elf_aarch64_link_hash_table *htab = |
| 3460 | elf_aarch64_hash_table (info); | |
| a06ea964 NC |
3461 | |
| 3462 | if (!is_elf_hash_table (htab)) | |
| 3463 | return 0; | |
| 3464 | ||
| 3465 | /* Count the number of input BFDs and find the top input section id. */ | |
| 3466 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
| c72f2fb2 | 3467 | input_bfd != NULL; input_bfd = input_bfd->link.next) |
| a06ea964 NC |
3468 | { |
| 3469 | bfd_count += 1; | |
| 3470 | for (section = input_bfd->sections; | |
| 3471 | section != NULL; section = section->next) | |
| 3472 | { | |
| 3473 | if (top_id < section->id) | |
| 3474 | top_id = section->id; | |
| 3475 | } | |
| 3476 | } | |
| 3477 | htab->bfd_count = bfd_count; | |
| 3478 | ||
| 3479 | amt = sizeof (struct map_stub) * (top_id + 1); | |
| 3480 | htab->stub_group = bfd_zmalloc (amt); | |
| 3481 | if (htab->stub_group == NULL) | |
| 3482 | return -1; | |
| 3483 | ||
| 3484 | /* We can't use output_bfd->section_count here to find the top output | |
| 3485 | section index as some sections may have been removed, and | |
| 3486 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
| 3487 | for (section = output_bfd->sections, top_index = 0; | |
| 3488 | section != NULL; section = section->next) | |
| 3489 | { | |
| 3490 | if (top_index < section->index) | |
| 3491 | top_index = section->index; | |
| 3492 | } | |
| 3493 | ||
| 3494 | htab->top_index = top_index; | |
| 3495 | amt = sizeof (asection *) * (top_index + 1); | |
| 3496 | input_list = bfd_malloc (amt); | |
| 3497 | htab->input_list = input_list; | |
| 3498 | if (input_list == NULL) | |
| 3499 | return -1; | |
| 3500 | ||
| 3501 | /* For sections we aren't interested in, mark their entries with a | |
| 3502 | value we can check later. */ | |
| 3503 | list = input_list + top_index; | |
| 3504 | do | |
| 3505 | *list = bfd_abs_section_ptr; | |
| 3506 | while (list-- != input_list); | |
| 3507 | ||
| 3508 | for (section = output_bfd->sections; | |
| 3509 | section != NULL; section = section->next) | |
| 3510 | { | |
| 3511 | if ((section->flags & SEC_CODE) != 0) | |
| 3512 | input_list[section->index] = NULL; | |
| 3513 | } | |
| 3514 | ||
| 3515 | return 1; | |
| 3516 | } | |
| 3517 | ||
| cec5225b | 3518 | /* Used by elfNN_aarch64_next_input_section and group_sections. */ |
| a06ea964 NC |
3519 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
| 3520 | ||
| 3521 | /* The linker repeatedly calls this function for each input section, | |
| 3522 | in the order that input sections are linked into output sections. | |
| 3523 | Build lists of input sections to determine groupings between which | |
| 3524 | we may insert linker stubs. */ | |
| 3525 | ||
| 3526 | void | |
| cec5225b | 3527 | elfNN_aarch64_next_input_section (struct bfd_link_info *info, asection *isec) |
| a06ea964 | 3528 | { |
| cec5225b YZ |
3529 | struct elf_aarch64_link_hash_table *htab = |
| 3530 | elf_aarch64_hash_table (info); | |
| a06ea964 NC |
3531 | |
| 3532 | if (isec->output_section->index <= htab->top_index) | |
| 3533 | { | |
| 3534 | asection **list = htab->input_list + isec->output_section->index; | |
| 3535 | ||
| 3536 | if (*list != bfd_abs_section_ptr) | |
| 3537 | { | |
| 3538 | /* Steal the link_sec pointer for our list. */ | |
| 3539 | /* This happens to make the list in reverse order, | |
| 3540 | which is what we want. */ | |
| 3541 | PREV_SEC (isec) = *list; | |
| 3542 | *list = isec; | |
| 3543 | } | |
| 3544 | } | |
| 3545 | } | |
| 3546 | ||
| 3547 | /* See whether we can group stub sections together. Grouping stub | |
| 3548 | sections may result in fewer stubs. More importantly, we need to | |
| 3549 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 3550 | .fini output sections respectively, because glibc splits the | |
| 3551 | _init and _fini functions into multiple parts. Putting a stub in | |
| 3552 | the middle of a function is not a good idea. */ | |
| 3553 | ||
| 3554 | static void | |
| cec5225b | 3555 | group_sections (struct elf_aarch64_link_hash_table *htab, |
| a06ea964 NC |
3556 | bfd_size_type stub_group_size, |
| 3557 | bfd_boolean stubs_always_before_branch) | |
| 3558 | { | |
| 3559 | asection **list = htab->input_list + htab->top_index; | |
| 3560 | ||
| 3561 | do | |
| 3562 | { | |
| 3563 | asection *tail = *list; | |
| 3564 | ||
| 3565 | if (tail == bfd_abs_section_ptr) | |
| 3566 | continue; | |
| 3567 | ||
| 3568 | while (tail != NULL) | |
| 3569 | { | |
| 3570 | asection *curr; | |
| 3571 | asection *prev; | |
| 3572 | bfd_size_type total; | |
| 3573 | ||
| 3574 | curr = tail; | |
| 3575 | total = tail->size; | |
| 3576 | while ((prev = PREV_SEC (curr)) != NULL | |
| 3577 | && ((total += curr->output_offset - prev->output_offset) | |
| 3578 | < stub_group_size)) | |
| 3579 | curr = prev; | |
| 3580 | ||
| 3581 | /* OK, the size from the start of CURR to the end is less | |
| 3582 | than stub_group_size and thus can be handled by one stub | |
| 3583 | section. (Or the tail section is itself larger than | |
| 3584 | stub_group_size, in which case we may be toast.) | |
| 3585 | We should really be keeping track of the total size of | |
| 3586 | stubs added here, as stubs contribute to the final output | |
| 3587 | section size. */ | |
| 3588 | do | |
| 3589 | { | |
| 3590 | prev = PREV_SEC (tail); | |
| 3591 | /* Set up this stub group. */ | |
| 3592 | htab->stub_group[tail->id].link_sec = curr; | |
| 3593 | } | |
| 3594 | while (tail != curr && (tail = prev) != NULL); | |
| 3595 | ||
| 3596 | /* But wait, there's more! Input sections up to stub_group_size | |
| 3597 | bytes before the stub section can be handled by it too. */ | |
| 3598 | if (!stubs_always_before_branch) | |
| 3599 | { | |
| 3600 | total = 0; | |
| 3601 | while (prev != NULL | |
| 3602 | && ((total += tail->output_offset - prev->output_offset) | |
| 3603 | < stub_group_size)) | |
| 3604 | { | |
| 3605 | tail = prev; | |
| 3606 | prev = PREV_SEC (tail); | |
| 3607 | htab->stub_group[tail->id].link_sec = curr; | |
| 3608 | } | |
| 3609 | } | |
| 3610 | tail = prev; | |
| 3611 | } | |
| 3612 | } | |
| 3613 | while (list-- != htab->input_list); | |
| 3614 | ||
| 3615 | free (htab->input_list); | |
| 3616 | } | |
| 3617 | ||
| 3618 | #undef PREV_SEC | |
| 3619 | ||
| 68fcca92 JW |
3620 | #define AARCH64_BITS(x, pos, n) (((x) >> (pos)) & ((1 << (n)) - 1)) |
| 3621 | ||
| 3622 | #define AARCH64_RT(insn) AARCH64_BITS (insn, 0, 5) | |
| 3623 | #define AARCH64_RT2(insn) AARCH64_BITS (insn, 10, 5) | |
| 3624 | #define AARCH64_RA(insn) AARCH64_BITS (insn, 10, 5) | |
| 3625 | #define AARCH64_RD(insn) AARCH64_BITS (insn, 0, 5) | |
| 3626 | #define AARCH64_RN(insn) AARCH64_BITS (insn, 5, 5) | |
| 3627 | #define AARCH64_RM(insn) AARCH64_BITS (insn, 16, 5) | |
| 3628 | ||
| 3629 | #define AARCH64_MAC(insn) (((insn) & 0xff000000) == 0x9b000000) | |
| 3630 | #define AARCH64_BIT(insn, n) AARCH64_BITS (insn, n, 1) | |
| 3631 | #define AARCH64_OP31(insn) AARCH64_BITS (insn, 21, 3) | |
| 3632 | #define AARCH64_ZR 0x1f | |
| 3633 | ||
| 3634 | /* All ld/st ops. See C4-182 of the ARM ARM. The encoding space for | |
| 3635 | LD_PCREL, LDST_RO, LDST_UI and LDST_UIMM cover prefetch ops. */ | |
| 3636 | ||
| 3637 | #define AARCH64_LD(insn) (AARCH64_BIT (insn, 22) == 1) | |
| 3638 | #define AARCH64_LDST(insn) (((insn) & 0x0a000000) == 0x08000000) | |
| 3639 | #define AARCH64_LDST_EX(insn) (((insn) & 0x3f000000) == 0x08000000) | |
| 3640 | #define AARCH64_LDST_PCREL(insn) (((insn) & 0x3b000000) == 0x18000000) | |
| 3641 | #define AARCH64_LDST_NAP(insn) (((insn) & 0x3b800000) == 0x28000000) | |
| 3642 | #define AARCH64_LDSTP_PI(insn) (((insn) & 0x3b800000) == 0x28800000) | |
| 3643 | #define AARCH64_LDSTP_O(insn) (((insn) & 0x3b800000) == 0x29000000) | |
| 3644 | #define AARCH64_LDSTP_PRE(insn) (((insn) & 0x3b800000) == 0x29800000) | |
| 3645 | #define AARCH64_LDST_UI(insn) (((insn) & 0x3b200c00) == 0x38000000) | |
| 3646 | #define AARCH64_LDST_PIIMM(insn) (((insn) & 0x3b200c00) == 0x38000400) | |
| 3647 | #define AARCH64_LDST_U(insn) (((insn) & 0x3b200c00) == 0x38000800) | |
| 3648 | #define AARCH64_LDST_PREIMM(insn) (((insn) & 0x3b200c00) == 0x38000c00) | |
| 3649 | #define AARCH64_LDST_RO(insn) (((insn) & 0x3b200c00) == 0x38200800) | |
| 3650 | #define AARCH64_LDST_UIMM(insn) (((insn) & 0x3b000000) == 0x39000000) | |
| 3651 | #define AARCH64_LDST_SIMD_M(insn) (((insn) & 0xbfbf0000) == 0x0c000000) | |
| 3652 | #define AARCH64_LDST_SIMD_M_PI(insn) (((insn) & 0xbfa00000) == 0x0c800000) | |
| 3653 | #define AARCH64_LDST_SIMD_S(insn) (((insn) & 0xbf9f0000) == 0x0d000000) | |
| 3654 | #define AARCH64_LDST_SIMD_S_PI(insn) (((insn) & 0xbf800000) == 0x0d800000) | |
| 3655 | ||
| 3d14faea MS |
3656 | /* Classify an INSN if it is indeed a load/store. |
| 3657 | ||
| 3658 | Return TRUE if INSN is a LD/ST instruction otherwise return FALSE. | |
| 3659 | ||
| 3660 | For scalar LD/ST instructions PAIR is FALSE, RT is returned and RT2 | |
| 3661 | is set equal to RT. | |
| 3662 | ||
| 2d0ca824 | 3663 | For LD/ST pair instructions PAIR is TRUE, RT and RT2 are returned. */ |
| 68fcca92 JW |
3664 | |
| 3665 | static bfd_boolean | |
| 3d14faea | 3666 | aarch64_mem_op_p (uint32_t insn, unsigned int *rt, unsigned int *rt2, |
| 68fcca92 JW |
3667 | bfd_boolean *pair, bfd_boolean *load) |
| 3668 | { | |
| 3669 | uint32_t opcode; | |
| 3670 | unsigned int r; | |
| 3671 | uint32_t opc = 0; | |
| 3672 | uint32_t v = 0; | |
| 3673 | uint32_t opc_v = 0; | |
| 3674 | ||
| de194d85 | 3675 | /* Bail out quickly if INSN doesn't fall into the load-store |
| 68fcca92 JW |
3676 | encoding space. */ |
| 3677 | if (!AARCH64_LDST (insn)) | |
| 3678 | return FALSE; | |
| 3679 | ||
| 3680 | *pair = FALSE; | |
| 3681 | *load = FALSE; | |
| 3682 | if (AARCH64_LDST_EX (insn)) | |
| 3683 | { | |
| 3684 | *rt = AARCH64_RT (insn); | |
| 3d14faea | 3685 | *rt2 = *rt; |
| 68fcca92 | 3686 | if (AARCH64_BIT (insn, 21) == 1) |
| 07d6d2b8 | 3687 | { |
| 68fcca92 | 3688 | *pair = TRUE; |
| 3d14faea | 3689 | *rt2 = AARCH64_RT2 (insn); |
| 68fcca92 JW |
3690 | } |
| 3691 | *load = AARCH64_LD (insn); | |
| 3692 | return TRUE; | |
| 3693 | } | |
| 3694 | else if (AARCH64_LDST_NAP (insn) | |
| 3695 | || AARCH64_LDSTP_PI (insn) | |
| 3696 | || AARCH64_LDSTP_O (insn) | |
| 3697 | || AARCH64_LDSTP_PRE (insn)) | |
| 3698 | { | |
| 3699 | *pair = TRUE; | |
| 3700 | *rt = AARCH64_RT (insn); | |
| 3d14faea | 3701 | *rt2 = AARCH64_RT2 (insn); |
| 68fcca92 JW |
3702 | *load = AARCH64_LD (insn); |
| 3703 | return TRUE; | |
| 3704 | } | |
| 3705 | else if (AARCH64_LDST_PCREL (insn) | |
| 3706 | || AARCH64_LDST_UI (insn) | |
| 3707 | || AARCH64_LDST_PIIMM (insn) | |
| 3708 | || AARCH64_LDST_U (insn) | |
| 3709 | || AARCH64_LDST_PREIMM (insn) | |
| 3710 | || AARCH64_LDST_RO (insn) | |
| 3711 | || AARCH64_LDST_UIMM (insn)) | |
| 3712 | { | |
| 3713 | *rt = AARCH64_RT (insn); | |
| 3d14faea | 3714 | *rt2 = *rt; |
| 68fcca92 JW |
3715 | if (AARCH64_LDST_PCREL (insn)) |
| 3716 | *load = TRUE; | |
| 3717 | opc = AARCH64_BITS (insn, 22, 2); | |
| 3718 | v = AARCH64_BIT (insn, 26); | |
| 3719 | opc_v = opc | (v << 2); | |
| 3720 | *load = (opc_v == 1 || opc_v == 2 || opc_v == 3 | |
| 3721 | || opc_v == 5 || opc_v == 7); | |
| 3722 | return TRUE; | |
| 3723 | } | |
| 3724 | else if (AARCH64_LDST_SIMD_M (insn) | |
| 3725 | || AARCH64_LDST_SIMD_M_PI (insn)) | |
| 3726 | { | |
| 3727 | *rt = AARCH64_RT (insn); | |
| 3728 | *load = AARCH64_BIT (insn, 22); | |
| 3729 | opcode = (insn >> 12) & 0xf; | |
| 3730 | switch (opcode) | |
| 3731 | { | |
| 3732 | case 0: | |
| 3733 | case 2: | |
| 3d14faea | 3734 | *rt2 = *rt + 3; |
| 68fcca92 JW |
3735 | break; |
| 3736 | ||
| 3737 | case 4: | |
| 3738 | case 6: | |
| 3d14faea | 3739 | *rt2 = *rt + 2; |
| 68fcca92 JW |
3740 | break; |
| 3741 | ||
| 3742 | case 7: | |
| 3d14faea | 3743 | *rt2 = *rt; |
| 68fcca92 JW |
3744 | break; |
| 3745 | ||
| 3746 | case 8: | |
| 3747 | case 10: | |
| 3d14faea | 3748 | *rt2 = *rt + 1; |
| 68fcca92 JW |
3749 | break; |
| 3750 | ||
| 3751 | default: | |
| 3752 | return FALSE; | |
| 3753 | } | |
| 3754 | return TRUE; | |
| 3755 | } | |
| 3756 | else if (AARCH64_LDST_SIMD_S (insn) | |
| 3757 | || AARCH64_LDST_SIMD_S_PI (insn)) | |
| 3758 | { | |
| 3759 | *rt = AARCH64_RT (insn); | |
| 3760 | r = (insn >> 21) & 1; | |
| 3761 | *load = AARCH64_BIT (insn, 22); | |
| 3762 | opcode = (insn >> 13) & 0x7; | |
| 3763 | switch (opcode) | |
| 3764 | { | |
| 3765 | case 0: | |
| 3766 | case 2: | |
| 3767 | case 4: | |
| 3d14faea | 3768 | *rt2 = *rt + r; |
| 68fcca92 JW |
3769 | break; |
| 3770 | ||
| 3771 | case 1: | |
| 3772 | case 3: | |
| 3773 | case 5: | |
| 3d14faea | 3774 | *rt2 = *rt + (r == 0 ? 2 : 3); |
| 68fcca92 JW |
3775 | break; |
| 3776 | ||
| 3777 | case 6: | |
| 3d14faea | 3778 | *rt2 = *rt + r; |
| 68fcca92 JW |
3779 | break; |
| 3780 | ||
| 3781 | case 7: | |
| 3d14faea | 3782 | *rt2 = *rt + (r == 0 ? 2 : 3); |
| 68fcca92 JW |
3783 | break; |
| 3784 | ||
| 3785 | default: | |
| 3786 | return FALSE; | |
| 3787 | } | |
| 3788 | return TRUE; | |
| 3789 | } | |
| 3790 | ||
| 3791 | return FALSE; | |
| 3792 | } | |
| 3793 | ||
| 3794 | /* Return TRUE if INSN is multiply-accumulate. */ | |
| 3795 | ||
| 3796 | static bfd_boolean | |
| 3797 | aarch64_mlxl_p (uint32_t insn) | |
| 3798 | { | |
| 3799 | uint32_t op31 = AARCH64_OP31 (insn); | |
| 3800 | ||
| 3801 | if (AARCH64_MAC (insn) | |
| 3802 | && (op31 == 0 || op31 == 1 || op31 == 5) | |
| 3803 | /* Exclude MUL instructions which are encoded as a multiple accumulate | |
| 3804 | with RA = XZR. */ | |
| 3805 | && AARCH64_RA (insn) != AARCH64_ZR) | |
| 3806 | return TRUE; | |
| 3807 | ||
| 3808 | return FALSE; | |
| 3809 | } | |
| 3810 | ||
| 3811 | /* Some early revisions of the Cortex-A53 have an erratum (835769) whereby | |
| 3812 | it is possible for a 64-bit multiply-accumulate instruction to generate an | |
| 3813 | incorrect result. The details are quite complex and hard to | |
| 3814 | determine statically, since branches in the code may exist in some | |
| 3815 | circumstances, but all cases end with a memory (load, store, or | |
| 3816 | prefetch) instruction followed immediately by the multiply-accumulate | |
| 3817 | operation. We employ a linker patching technique, by moving the potentially | |
| 3818 | affected multiply-accumulate instruction into a patch region and replacing | |
| 3819 | the original instruction with a branch to the patch. This function checks | |
| 3820 | if INSN_1 is the memory operation followed by a multiply-accumulate | |
| 3821 | operation (INSN_2). Return TRUE if an erratum sequence is found, FALSE | |
| 3822 | if INSN_1 and INSN_2 are safe. */ | |
| 3823 | ||
| 3824 | static bfd_boolean | |
| 3825 | aarch64_erratum_sequence (uint32_t insn_1, uint32_t insn_2) | |
| 3826 | { | |
| 3827 | uint32_t rt; | |
| 3d14faea | 3828 | uint32_t rt2; |
| 68fcca92 JW |
3829 | uint32_t rn; |
| 3830 | uint32_t rm; | |
| 3831 | uint32_t ra; | |
| 3832 | bfd_boolean pair; | |
| 3833 | bfd_boolean load; | |
| 3834 | ||
| 3835 | if (aarch64_mlxl_p (insn_2) | |
| 3d14faea | 3836 | && aarch64_mem_op_p (insn_1, &rt, &rt2, &pair, &load)) |
| 68fcca92 JW |
3837 | { |
| 3838 | /* Any SIMD memory op is independent of the subsequent MLA | |
| 3839 | by definition of the erratum. */ | |
| 3840 | if (AARCH64_BIT (insn_1, 26)) | |
| 3841 | return TRUE; | |
| 3842 | ||
| 3843 | /* If not SIMD, check for integer memory ops and MLA relationship. */ | |
| 3844 | rn = AARCH64_RN (insn_2); | |
| 3845 | ra = AARCH64_RA (insn_2); | |
| 3846 | rm = AARCH64_RM (insn_2); | |
| 3847 | ||
| 3848 | /* If this is a load and there's a true(RAW) dependency, we are safe | |
| 3849 | and this is not an erratum sequence. */ | |
| 3850 | if (load && | |
| 3851 | (rt == rn || rt == rm || rt == ra | |
| 3d14faea | 3852 | || (pair && (rt2 == rn || rt2 == rm || rt2 == ra)))) |
| 68fcca92 JW |
3853 | return FALSE; |
| 3854 | ||
| 3855 | /* We conservatively put out stubs for all other cases (including | |
| 3856 | writebacks). */ | |
| 3857 | return TRUE; | |
| 3858 | } | |
| 3859 | ||
| 3860 | return FALSE; | |
| 3861 | } | |
| 3862 | ||
| 520c7b56 JW |
3863 | /* Used to order a list of mapping symbols by address. */ |
| 3864 | ||
| 3865 | static int | |
| 3866 | elf_aarch64_compare_mapping (const void *a, const void *b) | |
| 3867 | { | |
| 3868 | const elf_aarch64_section_map *amap = (const elf_aarch64_section_map *) a; | |
| 3869 | const elf_aarch64_section_map *bmap = (const elf_aarch64_section_map *) b; | |
| 3870 | ||
| 3871 | if (amap->vma > bmap->vma) | |
| 3872 | return 1; | |
| 3873 | else if (amap->vma < bmap->vma) | |
| 3874 | return -1; | |
| 3875 | else if (amap->type > bmap->type) | |
| 3876 | /* Ensure results do not depend on the host qsort for objects with | |
| 3877 | multiple mapping symbols at the same address by sorting on type | |
| 3878 | after vma. */ | |
| 3879 | return 1; | |
| 3880 | else if (amap->type < bmap->type) | |
| 3881 | return -1; | |
| 3882 | else | |
| 3883 | return 0; | |
| 3884 | } | |
| 3885 | ||
| 2144188d | 3886 | |
| 35fee8b7 MS |
3887 | static char * |
| 3888 | _bfd_aarch64_erratum_835769_stub_name (unsigned num_fixes) | |
| 3889 | { | |
| 3890 | char *stub_name = (char *) bfd_malloc | |
| 3891 | (strlen ("__erratum_835769_veneer_") + 16); | |
| bb69498c NC |
3892 | if (stub_name != NULL) |
| 3893 | sprintf (stub_name,"__erratum_835769_veneer_%d", num_fixes); | |
| 35fee8b7 MS |
3894 | return stub_name; |
| 3895 | } | |
| 3896 | ||
| 4106101c | 3897 | /* Scan for Cortex-A53 erratum 835769 sequence. |
| 2144188d MS |
3898 | |
| 3899 | Return TRUE else FALSE on abnormal termination. */ | |
| 3900 | ||
| 68fcca92 | 3901 | static bfd_boolean |
| 5421cc6e MS |
3902 | _bfd_aarch64_erratum_835769_scan (bfd *input_bfd, |
| 3903 | struct bfd_link_info *info, | |
| 3904 | unsigned int *num_fixes_p) | |
| 68fcca92 JW |
3905 | { |
| 3906 | asection *section; | |
| 3907 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); | |
| 68fcca92 | 3908 | unsigned int num_fixes = *num_fixes_p; |
| 68fcca92 JW |
3909 | |
| 3910 | if (htab == NULL) | |
| 2144188d | 3911 | return TRUE; |
| 68fcca92 JW |
3912 | |
| 3913 | for (section = input_bfd->sections; | |
| 3914 | section != NULL; | |
| 3915 | section = section->next) | |
| 3916 | { | |
| 3917 | bfd_byte *contents = NULL; | |
| 3918 | struct _aarch64_elf_section_data *sec_data; | |
| 3919 | unsigned int span; | |
| 3920 | ||
| 3921 | if (elf_section_type (section) != SHT_PROGBITS | |
| 3922 | || (elf_section_flags (section) & SHF_EXECINSTR) == 0 | |
| 3923 | || (section->flags & SEC_EXCLUDE) != 0 | |
| 3924 | || (section->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) | |
| 3925 | || (section->output_section == bfd_abs_section_ptr)) | |
| 3926 | continue; | |
| 3927 | ||
| 3928 | if (elf_section_data (section)->this_hdr.contents != NULL) | |
| 3929 | contents = elf_section_data (section)->this_hdr.contents; | |
| 3930 | else if (! bfd_malloc_and_get_section (input_bfd, section, &contents)) | |
| 2144188d | 3931 | return FALSE; |
| 68fcca92 JW |
3932 | |
| 3933 | sec_data = elf_aarch64_section_data (section); | |
| 520c7b56 JW |
3934 | |
| 3935 | qsort (sec_data->map, sec_data->mapcount, | |
| 3936 | sizeof (elf_aarch64_section_map), elf_aarch64_compare_mapping); | |
| 3937 | ||
| 68fcca92 JW |
3938 | for (span = 0; span < sec_data->mapcount; span++) |
| 3939 | { | |
| 3940 | unsigned int span_start = sec_data->map[span].vma; | |
| 3941 | unsigned int span_end = ((span == sec_data->mapcount - 1) | |
| 3942 | ? sec_data->map[0].vma + section->size | |
| 3943 | : sec_data->map[span + 1].vma); | |
| 3944 | unsigned int i; | |
| 3945 | char span_type = sec_data->map[span].type; | |
| 3946 | ||
| 3947 | if (span_type == 'd') | |
| 3948 | continue; | |
| 3949 | ||
| 3950 | for (i = span_start; i + 4 < span_end; i += 4) | |
| 3951 | { | |
| 3952 | uint32_t insn_1 = bfd_getl32 (contents + i); | |
| 3953 | uint32_t insn_2 = bfd_getl32 (contents + i + 4); | |
| 3954 | ||
| 3955 | if (aarch64_erratum_sequence (insn_1, insn_2)) | |
| 3956 | { | |
| 5421cc6e | 3957 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| 35fee8b7 MS |
3958 | char *stub_name = _bfd_aarch64_erratum_835769_stub_name (num_fixes); |
| 3959 | if (! stub_name) | |
| 2144188d | 3960 | return FALSE; |
| 68fcca92 | 3961 | |
| 5421cc6e MS |
3962 | stub_entry = _bfd_aarch64_add_stub_entry_in_group (stub_name, |
| 3963 | section, | |
| 3964 | htab); | |
| 3965 | if (! stub_entry) | |
| 3966 | return FALSE; | |
| 68fcca92 | 3967 | |
| 5421cc6e MS |
3968 | stub_entry->stub_type = aarch64_stub_erratum_835769_veneer; |
| 3969 | stub_entry->target_section = section; | |
| 3970 | stub_entry->target_value = i + 4; | |
| 3971 | stub_entry->veneered_insn = insn_2; | |
| 3972 | stub_entry->output_name = stub_name; | |
| 68fcca92 JW |
3973 | num_fixes++; |
| 3974 | } | |
| 3975 | } | |
| 3976 | } | |
| 3977 | if (elf_section_data (section)->this_hdr.contents == NULL) | |
| 3978 | free (contents); | |
| 3979 | } | |
| 3980 | ||
| 357d1523 MS |
3981 | *num_fixes_p = num_fixes; |
| 3982 | ||
| 2144188d | 3983 | return TRUE; |
| 68fcca92 JW |
3984 | } |
| 3985 | ||
| 13f622ec | 3986 | |
| 4106101c MS |
3987 | /* Test if instruction INSN is ADRP. */ |
| 3988 | ||
| 3989 | static bfd_boolean | |
| 3990 | _bfd_aarch64_adrp_p (uint32_t insn) | |
| 3991 | { | |
| 9fca35fc | 3992 | return ((insn & AARCH64_ADRP_OP_MASK) == AARCH64_ADRP_OP); |
| 4106101c MS |
3993 | } |
| 3994 | ||
| 3995 | ||
| 3996 | /* Helper predicate to look for cortex-a53 erratum 843419 sequence 1. */ | |
| 3997 | ||
| 3998 | static bfd_boolean | |
| 3999 | _bfd_aarch64_erratum_843419_sequence_p (uint32_t insn_1, uint32_t insn_2, | |
| 4000 | uint32_t insn_3) | |
| 4001 | { | |
| 4002 | uint32_t rt; | |
| 4003 | uint32_t rt2; | |
| 4004 | bfd_boolean pair; | |
| 4005 | bfd_boolean load; | |
| 4006 | ||
| 4007 | return (aarch64_mem_op_p (insn_2, &rt, &rt2, &pair, &load) | |
| 4008 | && (!pair | |
| 4009 | || (pair && !load)) | |
| 4010 | && AARCH64_LDST_UIMM (insn_3) | |
| 4011 | && AARCH64_RN (insn_3) == AARCH64_RD (insn_1)); | |
| 4012 | } | |
| 4013 | ||
| 4014 | ||
| 4015 | /* Test for the presence of Cortex-A53 erratum 843419 instruction sequence. | |
| 4016 | ||
| 4017 | Return TRUE if section CONTENTS at offset I contains one of the | |
| 4018 | erratum 843419 sequences, otherwise return FALSE. If a sequence is | |
| 4019 | seen set P_VENEER_I to the offset of the final LOAD/STORE | |
| 4020 | instruction in the sequence. | |
| 4021 | */ | |
| 4022 | ||
| 4023 | static bfd_boolean | |
| 4024 | _bfd_aarch64_erratum_843419_p (bfd_byte *contents, bfd_vma vma, | |
| 4025 | bfd_vma i, bfd_vma span_end, | |
| 4026 | bfd_vma *p_veneer_i) | |
| 4027 | { | |
| 4028 | uint32_t insn_1 = bfd_getl32 (contents + i); | |
| 4029 | ||
| 4030 | if (!_bfd_aarch64_adrp_p (insn_1)) | |
| 4031 | return FALSE; | |
| 4032 | ||
| 4033 | if (span_end < i + 12) | |
| 4034 | return FALSE; | |
| 4035 | ||
| 4036 | uint32_t insn_2 = bfd_getl32 (contents + i + 4); | |
| 4037 | uint32_t insn_3 = bfd_getl32 (contents + i + 8); | |
| 4038 | ||
| 4039 | if ((vma & 0xfff) != 0xff8 && (vma & 0xfff) != 0xffc) | |
| 4040 | return FALSE; | |
| 4041 | ||
| 4042 | if (_bfd_aarch64_erratum_843419_sequence_p (insn_1, insn_2, insn_3)) | |
| 4043 | { | |
| 4044 | *p_veneer_i = i + 8; | |
| 4045 | return TRUE; | |
| 4046 | } | |
| 4047 | ||
| 4048 | if (span_end < i + 16) | |
| 4049 | return FALSE; | |
| 4050 | ||
| 4051 | uint32_t insn_4 = bfd_getl32 (contents + i + 12); | |
| 4052 | ||
| 4053 | if (_bfd_aarch64_erratum_843419_sequence_p (insn_1, insn_2, insn_4)) | |
| 4054 | { | |
| 4055 | *p_veneer_i = i + 12; | |
| 4056 | return TRUE; | |
| 4057 | } | |
| 4058 | ||
| 4059 | return FALSE; | |
| 4060 | } | |
| 4061 | ||
| 4062 | ||
| 13f622ec MS |
4063 | /* Resize all stub sections. */ |
| 4064 | ||
| 4065 | static void | |
| 4066 | _bfd_aarch64_resize_stubs (struct elf_aarch64_link_hash_table *htab) | |
| 4067 | { | |
| 4068 | asection *section; | |
| 4069 | ||
| 4070 | /* OK, we've added some stubs. Find out the new size of the | |
| 4071 | stub sections. */ | |
| 4072 | for (section = htab->stub_bfd->sections; | |
| 4073 | section != NULL; section = section->next) | |
| 4074 | { | |
| 4075 | /* Ignore non-stub sections. */ | |
| 4076 | if (!strstr (section->name, STUB_SUFFIX)) | |
| 4077 | continue; | |
| 4078 | section->size = 0; | |
| 4079 | } | |
| 4080 | ||
| 4081 | bfd_hash_traverse (&htab->stub_hash_table, aarch64_size_one_stub, htab); | |
| 13f622ec | 4082 | |
| 61865519 MS |
4083 | for (section = htab->stub_bfd->sections; |
| 4084 | section != NULL; section = section->next) | |
| 4085 | { | |
| 4086 | if (!strstr (section->name, STUB_SUFFIX)) | |
| 4087 | continue; | |
| 4088 | ||
| 9a2ebffd JW |
4089 | /* Add space for a branch. Add 8 bytes to keep section 8 byte aligned, |
| 4090 | as long branch stubs contain a 64-bit address. */ | |
| 61865519 | 4091 | if (section->size) |
| 9a2ebffd | 4092 | section->size += 8; |
| 4106101c MS |
4093 | |
| 4094 | /* Ensure all stub sections have a size which is a multiple of | |
| 4095 | 4096. This is important in order to ensure that the insertion | |
| 4096 | of stub sections does not in itself move existing code around | |
| 739b5c9c TC |
4097 | in such a way that new errata sequences are created. We only do this |
| 4098 | when the ADRP workaround is enabled. If only the ADR workaround is | |
| 4099 | enabled then the stubs workaround won't ever be used. */ | |
| 4100 | if (htab->fix_erratum_843419 & ERRAT_ADRP) | |
| 4106101c MS |
4101 | if (section->size) |
| 4102 | section->size = BFD_ALIGN (section->size, 0x1000); | |
| 4103 | } | |
| 4104 | } | |
| 4105 | ||
| 9a2ebffd | 4106 | /* Construct an erratum 843419 workaround stub name. */ |
| 4106101c MS |
4107 | |
| 4108 | static char * | |
| 4109 | _bfd_aarch64_erratum_843419_stub_name (asection *input_section, | |
| 4110 | bfd_vma offset) | |
| 4111 | { | |
| 4112 | const bfd_size_type len = 8 + 4 + 1 + 8 + 1 + 16 + 1; | |
| 4113 | char *stub_name = bfd_malloc (len); | |
| 4114 | ||
| 4115 | if (stub_name != NULL) | |
| 4116 | snprintf (stub_name, len, "e843419@%04x_%08x_%" BFD_VMA_FMT "x", | |
| 4117 | input_section->owner->id, | |
| 4118 | input_section->id, | |
| 4119 | offset); | |
| 4120 | return stub_name; | |
| 4121 | } | |
| 4122 | ||
| 4123 | /* Build a stub_entry structure describing an 843419 fixup. | |
| 4124 | ||
| 4125 | The stub_entry constructed is populated with the bit pattern INSN | |
| 4126 | of the instruction located at OFFSET within input SECTION. | |
| 4127 | ||
| 4128 | Returns TRUE on success. */ | |
| 4129 | ||
| 4130 | static bfd_boolean | |
| 4131 | _bfd_aarch64_erratum_843419_fixup (uint32_t insn, | |
| 4132 | bfd_vma adrp_offset, | |
| 4133 | bfd_vma ldst_offset, | |
| 4134 | asection *section, | |
| 4135 | struct bfd_link_info *info) | |
| 4136 | { | |
| 4137 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); | |
| 4138 | char *stub_name; | |
| 4139 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 4140 | ||
| 4141 | stub_name = _bfd_aarch64_erratum_843419_stub_name (section, ldst_offset); | |
| bb69498c NC |
4142 | if (stub_name == NULL) |
| 4143 | return FALSE; | |
| 4106101c MS |
4144 | stub_entry = aarch64_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
| 4145 | FALSE, FALSE); | |
| 4146 | if (stub_entry) | |
| 4147 | { | |
| 4148 | free (stub_name); | |
| 4149 | return TRUE; | |
| 4150 | } | |
| 4151 | ||
| 4152 | /* We always place an 843419 workaround veneer in the stub section | |
| 4153 | attached to the input section in which an erratum sequence has | |
| 4154 | been found. This ensures that later in the link process (in | |
| 4155 | elfNN_aarch64_write_section) when we copy the veneered | |
| 4156 | instruction from the input section into the stub section the | |
| 4157 | copied instruction will have had any relocations applied to it. | |
| 4158 | If we placed workaround veneers in any other stub section then we | |
| 4159 | could not assume that all relocations have been processed on the | |
| 4160 | corresponding input section at the point we output the stub | |
| bb69498c | 4161 | section. */ |
| 4106101c MS |
4162 | |
| 4163 | stub_entry = _bfd_aarch64_add_stub_entry_after (stub_name, section, htab); | |
| 4164 | if (stub_entry == NULL) | |
| 4165 | { | |
| 4166 | free (stub_name); | |
| 4167 | return FALSE; | |
| 4168 | } | |
| 4169 | ||
| 4170 | stub_entry->adrp_offset = adrp_offset; | |
| 4171 | stub_entry->target_value = ldst_offset; | |
| 4172 | stub_entry->target_section = section; | |
| 4173 | stub_entry->stub_type = aarch64_stub_erratum_843419_veneer; | |
| 4174 | stub_entry->veneered_insn = insn; | |
| 4175 | stub_entry->output_name = stub_name; | |
| 4176 | ||
| 4177 | return TRUE; | |
| 4178 | } | |
| 4179 | ||
| 4180 | ||
| 4181 | /* Scan an input section looking for the signature of erratum 843419. | |
| 4182 | ||
| 4183 | Scans input SECTION in INPUT_BFD looking for erratum 843419 | |
| 4184 | signatures, for each signature found a stub_entry is created | |
| 4185 | describing the location of the erratum for subsequent fixup. | |
| 4186 | ||
| 4187 | Return TRUE on successful scan, FALSE on failure to scan. | |
| 4188 | */ | |
| 4189 | ||
| 4190 | static bfd_boolean | |
| 4191 | _bfd_aarch64_erratum_843419_scan (bfd *input_bfd, asection *section, | |
| 4192 | struct bfd_link_info *info) | |
| 4193 | { | |
| 4194 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); | |
| 4195 | ||
| 4196 | if (htab == NULL) | |
| 4197 | return TRUE; | |
| 4198 | ||
| 4199 | if (elf_section_type (section) != SHT_PROGBITS | |
| 4200 | || (elf_section_flags (section) & SHF_EXECINSTR) == 0 | |
| 4201 | || (section->flags & SEC_EXCLUDE) != 0 | |
| 4202 | || (section->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) | |
| 4203 | || (section->output_section == bfd_abs_section_ptr)) | |
| 4204 | return TRUE; | |
| 4205 | ||
| 4206 | do | |
| 4207 | { | |
| 4208 | bfd_byte *contents = NULL; | |
| 4209 | struct _aarch64_elf_section_data *sec_data; | |
| 4210 | unsigned int span; | |
| 4211 | ||
| 4212 | if (elf_section_data (section)->this_hdr.contents != NULL) | |
| 4213 | contents = elf_section_data (section)->this_hdr.contents; | |
| 4214 | else if (! bfd_malloc_and_get_section (input_bfd, section, &contents)) | |
| 4215 | return FALSE; | |
| 4216 | ||
| 4217 | sec_data = elf_aarch64_section_data (section); | |
| 4218 | ||
| 4219 | qsort (sec_data->map, sec_data->mapcount, | |
| 4220 | sizeof (elf_aarch64_section_map), elf_aarch64_compare_mapping); | |
| 4221 | ||
| 4222 | for (span = 0; span < sec_data->mapcount; span++) | |
| 4223 | { | |
| 4224 | unsigned int span_start = sec_data->map[span].vma; | |
| 4225 | unsigned int span_end = ((span == sec_data->mapcount - 1) | |
| 4226 | ? sec_data->map[0].vma + section->size | |
| 4227 | : sec_data->map[span + 1].vma); | |
| 4228 | unsigned int i; | |
| 4229 | char span_type = sec_data->map[span].type; | |
| 4230 | ||
| 4231 | if (span_type == 'd') | |
| 4232 | continue; | |
| 4233 | ||
| 4234 | for (i = span_start; i + 8 < span_end; i += 4) | |
| 4235 | { | |
| 4236 | bfd_vma vma = (section->output_section->vma | |
| 4237 | + section->output_offset | |
| 4238 | + i); | |
| 4239 | bfd_vma veneer_i; | |
| 4240 | ||
| 4241 | if (_bfd_aarch64_erratum_843419_p | |
| 4242 | (contents, vma, i, span_end, &veneer_i)) | |
| 4243 | { | |
| 4244 | uint32_t insn = bfd_getl32 (contents + veneer_i); | |
| 4245 | ||
| 4246 | if (!_bfd_aarch64_erratum_843419_fixup (insn, i, veneer_i, | |
| 4247 | section, info)) | |
| 4248 | return FALSE; | |
| 4249 | } | |
| 4250 | } | |
| 4251 | } | |
| 4252 | ||
| 4253 | if (elf_section_data (section)->this_hdr.contents == NULL) | |
| 4254 | free (contents); | |
| 61865519 | 4255 | } |
| 4106101c MS |
4256 | while (0); |
| 4257 | ||
| 4258 | return TRUE; | |
| 61865519 | 4259 | } |
| 13f622ec | 4260 | |
| 4106101c | 4261 | |
| a06ea964 NC |
4262 | /* Determine and set the size of the stub section for a final link. |
| 4263 | ||
| 4264 | The basic idea here is to examine all the relocations looking for | |
| 4265 | PC-relative calls to a target that is unreachable with a "bl" | |
| 4266 | instruction. */ | |
| 4267 | ||
| 4268 | bfd_boolean | |
| cec5225b | 4269 | elfNN_aarch64_size_stubs (bfd *output_bfd, |
| a06ea964 NC |
4270 | bfd *stub_bfd, |
| 4271 | struct bfd_link_info *info, | |
| 4272 | bfd_signed_vma group_size, | |
| 4273 | asection * (*add_stub_section) (const char *, | |
| 4274 | asection *), | |
| 4275 | void (*layout_sections_again) (void)) | |
| 4276 | { | |
| 4277 | bfd_size_type stub_group_size; | |
| 4278 | bfd_boolean stubs_always_before_branch; | |
| 5421cc6e | 4279 | bfd_boolean stub_changed = FALSE; |
| cec5225b | 4280 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); |
| 68fcca92 | 4281 | unsigned int num_erratum_835769_fixes = 0; |
| a06ea964 NC |
4282 | |
| 4283 | /* Propagate mach to stub bfd, because it may not have been | |
| 4284 | finalized when we created stub_bfd. */ | |
| 4285 | bfd_set_arch_mach (stub_bfd, bfd_get_arch (output_bfd), | |
| 4286 | bfd_get_mach (output_bfd)); | |
| 4287 | ||
| 4288 | /* Stash our params away. */ | |
| 4289 | htab->stub_bfd = stub_bfd; | |
| 4290 | htab->add_stub_section = add_stub_section; | |
| 4291 | htab->layout_sections_again = layout_sections_again; | |
| 4292 | stubs_always_before_branch = group_size < 0; | |
| 4293 | if (group_size < 0) | |
| 4294 | stub_group_size = -group_size; | |
| 4295 | else | |
| 4296 | stub_group_size = group_size; | |
| 4297 | ||
| 4298 | if (stub_group_size == 1) | |
| 4299 | { | |
| 4300 | /* Default values. */ | |
| b9eead84 | 4301 | /* AArch64 branch range is +-128MB. The value used is 1MB less. */ |
| a06ea964 NC |
4302 | stub_group_size = 127 * 1024 * 1024; |
| 4303 | } | |
| 4304 | ||
| 4305 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
| 4306 | ||
| 4106101c MS |
4307 | (*htab->layout_sections_again) (); |
| 4308 | ||
| 5421cc6e MS |
4309 | if (htab->fix_erratum_835769) |
| 4310 | { | |
| 4311 | bfd *input_bfd; | |
| 4312 | ||
| 4313 | for (input_bfd = info->input_bfds; | |
| 4314 | input_bfd != NULL; input_bfd = input_bfd->link.next) | |
| 4315 | if (!_bfd_aarch64_erratum_835769_scan (input_bfd, info, | |
| 4316 | &num_erratum_835769_fixes)) | |
| 4317 | return FALSE; | |
| 4318 | ||
| 4106101c MS |
4319 | _bfd_aarch64_resize_stubs (htab); |
| 4320 | (*htab->layout_sections_again) (); | |
| 4321 | } | |
| 4322 | ||
| 739b5c9c | 4323 | if (htab->fix_erratum_843419 != ERRAT_NONE) |
| 4106101c MS |
4324 | { |
| 4325 | bfd *input_bfd; | |
| 4326 | ||
| 4327 | for (input_bfd = info->input_bfds; | |
| 4328 | input_bfd != NULL; | |
| 4329 | input_bfd = input_bfd->link.next) | |
| 4330 | { | |
| 4331 | asection *section; | |
| 4332 | ||
| 4333 | for (section = input_bfd->sections; | |
| 4334 | section != NULL; | |
| 4335 | section = section->next) | |
| 4336 | if (!_bfd_aarch64_erratum_843419_scan (input_bfd, section, info)) | |
| 4337 | return FALSE; | |
| 4338 | } | |
| 4339 | ||
| 4340 | _bfd_aarch64_resize_stubs (htab); | |
| 4341 | (*htab->layout_sections_again) (); | |
| 5421cc6e MS |
4342 | } |
| 4343 | ||
| a06ea964 NC |
4344 | while (1) |
| 4345 | { | |
| 4346 | bfd *input_bfd; | |
| a06ea964 | 4347 | |
| 9b9971aa MS |
4348 | for (input_bfd = info->input_bfds; |
| 4349 | input_bfd != NULL; input_bfd = input_bfd->link.next) | |
| a06ea964 NC |
4350 | { |
| 4351 | Elf_Internal_Shdr *symtab_hdr; | |
| 4352 | asection *section; | |
| 4353 | Elf_Internal_Sym *local_syms = NULL; | |
| 4354 | ||
| 4355 | /* We'll need the symbol table in a second. */ | |
| 4356 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
| 4357 | if (symtab_hdr->sh_info == 0) | |
| 4358 | continue; | |
| 4359 | ||
| 4360 | /* Walk over each section attached to the input bfd. */ | |
| 4361 | for (section = input_bfd->sections; | |
| 4362 | section != NULL; section = section->next) | |
| 4363 | { | |
| 4364 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
| 4365 | ||
| 4366 | /* If there aren't any relocs, then there's nothing more | |
| 4367 | to do. */ | |
| 4368 | if ((section->flags & SEC_RELOC) == 0 | |
| 4369 | || section->reloc_count == 0 | |
| 4370 | || (section->flags & SEC_CODE) == 0) | |
| 4371 | continue; | |
| 4372 | ||
| 4373 | /* If this section is a link-once section that will be | |
| 4374 | discarded, then don't create any stubs. */ | |
| 4375 | if (section->output_section == NULL | |
| 4376 | || section->output_section->owner != output_bfd) | |
| 4377 | continue; | |
| 4378 | ||
| 4379 | /* Get the relocs. */ | |
| 4380 | internal_relocs | |
| 4381 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, | |
| 4382 | NULL, info->keep_memory); | |
| 4383 | if (internal_relocs == NULL) | |
| 4384 | goto error_ret_free_local; | |
| 4385 | ||
| 4386 | /* Now examine each relocation. */ | |
| 4387 | irela = internal_relocs; | |
| 4388 | irelaend = irela + section->reloc_count; | |
| 4389 | for (; irela < irelaend; irela++) | |
| 4390 | { | |
| 4391 | unsigned int r_type, r_indx; | |
| cec5225b YZ |
4392 | enum elf_aarch64_stub_type stub_type; |
| 4393 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| a06ea964 NC |
4394 | asection *sym_sec; |
| 4395 | bfd_vma sym_value; | |
| 4396 | bfd_vma destination; | |
| cec5225b | 4397 | struct elf_aarch64_link_hash_entry *hash; |
| a06ea964 NC |
4398 | const char *sym_name; |
| 4399 | char *stub_name; | |
| 4400 | const asection *id_sec; | |
| 4401 | unsigned char st_type; | |
| 4402 | bfd_size_type len; | |
| 4403 | ||
| cec5225b YZ |
4404 | r_type = ELFNN_R_TYPE (irela->r_info); |
| 4405 | r_indx = ELFNN_R_SYM (irela->r_info); | |
| a06ea964 NC |
4406 | |
| 4407 | if (r_type >= (unsigned int) R_AARCH64_end) | |
| 4408 | { | |
| 4409 | bfd_set_error (bfd_error_bad_value); | |
| 4410 | error_ret_free_internal: | |
| 4411 | if (elf_section_data (section)->relocs == NULL) | |
| 4412 | free (internal_relocs); | |
| 4413 | goto error_ret_free_local; | |
| 4414 | } | |
| 4415 | ||
| 4416 | /* Only look for stubs on unconditional branch and | |
| 4417 | branch and link instructions. */ | |
| a6bb11b2 YZ |
4418 | if (r_type != (unsigned int) AARCH64_R (CALL26) |
| 4419 | && r_type != (unsigned int) AARCH64_R (JUMP26)) | |
| a06ea964 NC |
4420 | continue; |
| 4421 | ||
| 4422 | /* Now determine the call target, its name, value, | |
| 4423 | section. */ | |
| 4424 | sym_sec = NULL; | |
| 4425 | sym_value = 0; | |
| 4426 | destination = 0; | |
| 4427 | hash = NULL; | |
| 4428 | sym_name = NULL; | |
| 4429 | if (r_indx < symtab_hdr->sh_info) | |
| 4430 | { | |
| 4431 | /* It's a local symbol. */ | |
| 4432 | Elf_Internal_Sym *sym; | |
| 4433 | Elf_Internal_Shdr *hdr; | |
| 4434 | ||
| 4435 | if (local_syms == NULL) | |
| 4436 | { | |
| 4437 | local_syms | |
| 4438 | = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 4439 | if (local_syms == NULL) | |
| 4440 | local_syms | |
| 4441 | = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
| 4442 | symtab_hdr->sh_info, 0, | |
| 4443 | NULL, NULL, NULL); | |
| 4444 | if (local_syms == NULL) | |
| 4445 | goto error_ret_free_internal; | |
| 4446 | } | |
| 4447 | ||
| 4448 | sym = local_syms + r_indx; | |
| 4449 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
| 4450 | sym_sec = hdr->bfd_section; | |
| 4451 | if (!sym_sec) | |
| 4452 | /* This is an undefined symbol. It can never | |
| 4453 | be resolved. */ | |
| 4454 | continue; | |
| 4455 | ||
| 4456 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
| 4457 | sym_value = sym->st_value; | |
| 4458 | destination = (sym_value + irela->r_addend | |
| 4459 | + sym_sec->output_offset | |
| 4460 | + sym_sec->output_section->vma); | |
| 4461 | st_type = ELF_ST_TYPE (sym->st_info); | |
| 4462 | sym_name | |
| 4463 | = bfd_elf_string_from_elf_section (input_bfd, | |
| 4464 | symtab_hdr->sh_link, | |
| 4465 | sym->st_name); | |
| 4466 | } | |
| 4467 | else | |
| 4468 | { | |
| 4469 | int e_indx; | |
| 4470 | ||
| 4471 | e_indx = r_indx - symtab_hdr->sh_info; | |
| cec5225b | 4472 | hash = ((struct elf_aarch64_link_hash_entry *) |
| a06ea964 NC |
4473 | elf_sym_hashes (input_bfd)[e_indx]); |
| 4474 | ||
| 4475 | while (hash->root.root.type == bfd_link_hash_indirect | |
| 4476 | || hash->root.root.type == bfd_link_hash_warning) | |
| cec5225b | 4477 | hash = ((struct elf_aarch64_link_hash_entry *) |
| a06ea964 NC |
4478 | hash->root.root.u.i.link); |
| 4479 | ||
| 4480 | if (hash->root.root.type == bfd_link_hash_defined | |
| 4481 | || hash->root.root.type == bfd_link_hash_defweak) | |
| 4482 | { | |
| cec5225b YZ |
4483 | struct elf_aarch64_link_hash_table *globals = |
| 4484 | elf_aarch64_hash_table (info); | |
| a06ea964 NC |
4485 | sym_sec = hash->root.root.u.def.section; |
| 4486 | sym_value = hash->root.root.u.def.value; | |
| 4487 | /* For a destination in a shared library, | |
| 4488 | use the PLT stub as target address to | |
| 4489 | decide whether a branch stub is | |
| 4490 | needed. */ | |
| 4491 | if (globals->root.splt != NULL && hash != NULL | |
| 4492 | && hash->root.plt.offset != (bfd_vma) - 1) | |
| 4493 | { | |
| 4494 | sym_sec = globals->root.splt; | |
| 4495 | sym_value = hash->root.plt.offset; | |
| 4496 | if (sym_sec->output_section != NULL) | |
| 4497 | destination = (sym_value | |
| 4498 | + sym_sec->output_offset | |
| 4499 | + | |
| 4500 | sym_sec->output_section->vma); | |
| 4501 | } | |
| 4502 | else if (sym_sec->output_section != NULL) | |
| 4503 | destination = (sym_value + irela->r_addend | |
| 4504 | + sym_sec->output_offset | |
| 4505 | + sym_sec->output_section->vma); | |
| 4506 | } | |
| 4507 | else if (hash->root.root.type == bfd_link_hash_undefined | |
| 4508 | || (hash->root.root.type | |
| 4509 | == bfd_link_hash_undefweak)) | |
| 4510 | { | |
| 4511 | /* For a shared library, use the PLT stub as | |
| 4512 | target address to decide whether a long | |
| 4513 | branch stub is needed. | |
| 4514 | For absolute code, they cannot be handled. */ | |
| cec5225b YZ |
4515 | struct elf_aarch64_link_hash_table *globals = |
| 4516 | elf_aarch64_hash_table (info); | |
| a06ea964 NC |
4517 | |
| 4518 | if (globals->root.splt != NULL && hash != NULL | |
| 4519 | && hash->root.plt.offset != (bfd_vma) - 1) | |
| 4520 | { | |
| 4521 | sym_sec = globals->root.splt; | |
| 4522 | sym_value = hash->root.plt.offset; | |
| 4523 | if (sym_sec->output_section != NULL) | |
| 4524 | destination = (sym_value | |
| 4525 | + sym_sec->output_offset | |
| 4526 | + | |
| 4527 | sym_sec->output_section->vma); | |
| 4528 | } | |
| 4529 | else | |
| 4530 | continue; | |
| 4531 | } | |
| 4532 | else | |
| 4533 | { | |
| 4534 | bfd_set_error (bfd_error_bad_value); | |
| 4535 | goto error_ret_free_internal; | |
| 4536 | } | |
| 4537 | st_type = ELF_ST_TYPE (hash->root.type); | |
| 4538 | sym_name = hash->root.root.root.string; | |
| 4539 | } | |
| 4540 | ||
| 4541 | /* Determine what (if any) linker stub is needed. */ | |
| 9a228467 JW |
4542 | stub_type = aarch64_type_of_stub (section, irela, sym_sec, |
| 4543 | st_type, destination); | |
| a06ea964 NC |
4544 | if (stub_type == aarch64_stub_none) |
| 4545 | continue; | |
| 4546 | ||
| 4547 | /* Support for grouping stub sections. */ | |
| 4548 | id_sec = htab->stub_group[section->id].link_sec; | |
| 4549 | ||
| 4550 | /* Get the name of this stub. */ | |
| cec5225b | 4551 | stub_name = elfNN_aarch64_stub_name (id_sec, sym_sec, hash, |
| a06ea964 NC |
4552 | irela); |
| 4553 | if (!stub_name) | |
| 4554 | goto error_ret_free_internal; | |
| 4555 | ||
| 4556 | stub_entry = | |
| 4557 | aarch64_stub_hash_lookup (&htab->stub_hash_table, | |
| 4558 | stub_name, FALSE, FALSE); | |
| 4559 | if (stub_entry != NULL) | |
| 4560 | { | |
| 4561 | /* The proper stub has already been created. */ | |
| 4562 | free (stub_name); | |
| 3da64fe4 RA |
4563 | /* Always update this stub's target since it may have |
| 4564 | changed after layout. */ | |
| 4565 | stub_entry->target_value = sym_value + irela->r_addend; | |
| a06ea964 NC |
4566 | continue; |
| 4567 | } | |
| 4568 | ||
| ef857521 MS |
4569 | stub_entry = _bfd_aarch64_add_stub_entry_in_group |
| 4570 | (stub_name, section, htab); | |
| a06ea964 NC |
4571 | if (stub_entry == NULL) |
| 4572 | { | |
| 4573 | free (stub_name); | |
| 4574 | goto error_ret_free_internal; | |
| 4575 | } | |
| 4576 | ||
| 2f340668 | 4577 | stub_entry->target_value = sym_value + irela->r_addend; |
| a06ea964 NC |
4578 | stub_entry->target_section = sym_sec; |
| 4579 | stub_entry->stub_type = stub_type; | |
| 4580 | stub_entry->h = hash; | |
| 4581 | stub_entry->st_type = st_type; | |
| 4582 | ||
| 4583 | if (sym_name == NULL) | |
| 4584 | sym_name = "unnamed"; | |
| 4585 | len = sizeof (STUB_ENTRY_NAME) + strlen (sym_name); | |
| 4586 | stub_entry->output_name = bfd_alloc (htab->stub_bfd, len); | |
| 4587 | if (stub_entry->output_name == NULL) | |
| 4588 | { | |
| 4589 | free (stub_name); | |
| 4590 | goto error_ret_free_internal; | |
| 4591 | } | |
| 4592 | ||
| 4593 | snprintf (stub_entry->output_name, len, STUB_ENTRY_NAME, | |
| 4594 | sym_name); | |
| 4595 | ||
| 4596 | stub_changed = TRUE; | |
| 4597 | } | |
| 4598 | ||
| 4599 | /* We're done with the internal relocs, free them. */ | |
| 4600 | if (elf_section_data (section)->relocs == NULL) | |
| 4601 | free (internal_relocs); | |
| 4602 | } | |
| 4603 | } | |
| 4604 | ||
| 4605 | if (!stub_changed) | |
| 4606 | break; | |
| 4607 | ||
| 13f622ec | 4608 | _bfd_aarch64_resize_stubs (htab); |
| a06ea964 NC |
4609 | |
| 4610 | /* Ask the linker to do its stuff. */ | |
| 4611 | (*htab->layout_sections_again) (); | |
| 4612 | stub_changed = FALSE; | |
| 4613 | } | |
| 4614 | ||
| 4615 | return TRUE; | |
| 4616 | ||
| 4617 | error_ret_free_local: | |
| 4618 | return FALSE; | |
| 4619 | } | |
| 4620 | ||
| 4621 | /* Build all the stubs associated with the current output file. The | |
| 4622 | stubs are kept in a hash table attached to the main linker hash | |
| 4623 | table. We also set up the .plt entries for statically linked PIC | |
| 4624 | functions here. This function is called via aarch64_elf_finish in the | |
| 4625 | linker. */ | |
| 4626 | ||
| 4627 | bfd_boolean | |
| cec5225b | 4628 | elfNN_aarch64_build_stubs (struct bfd_link_info *info) |
| a06ea964 NC |
4629 | { |
| 4630 | asection *stub_sec; | |
| 4631 | struct bfd_hash_table *table; | |
| cec5225b | 4632 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 | 4633 | |
| cec5225b | 4634 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
4635 | |
| 4636 | for (stub_sec = htab->stub_bfd->sections; | |
| 4637 | stub_sec != NULL; stub_sec = stub_sec->next) | |
| 4638 | { | |
| 4639 | bfd_size_type size; | |
| 4640 | ||
| 4641 | /* Ignore non-stub sections. */ | |
| 4642 | if (!strstr (stub_sec->name, STUB_SUFFIX)) | |
| 4643 | continue; | |
| 4644 | ||
| 4645 | /* Allocate memory to hold the linker stubs. */ | |
| 4646 | size = stub_sec->size; | |
| 4647 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); | |
| 4648 | if (stub_sec->contents == NULL && size != 0) | |
| 4649 | return FALSE; | |
| 4650 | stub_sec->size = 0; | |
| 61865519 | 4651 | |
| 9a2ebffd JW |
4652 | /* Add a branch around the stub section, and a nop, to keep it 8 byte |
| 4653 | aligned, as long branch stubs contain a 64-bit address. */ | |
| 61865519 | 4654 | bfd_putl32 (0x14000000 | (size >> 2), stub_sec->contents); |
| 9a2ebffd JW |
4655 | bfd_putl32 (INSN_NOP, stub_sec->contents + 4); |
| 4656 | stub_sec->size += 8; | |
| a06ea964 NC |
4657 | } |
| 4658 | ||
| 4659 | /* Build the stubs as directed by the stub hash table. */ | |
| 4660 | table = &htab->stub_hash_table; | |
| 4661 | bfd_hash_traverse (table, aarch64_build_one_stub, info); | |
| 4662 | ||
| 4663 | return TRUE; | |
| 4664 | } | |
| 4665 | ||
| 4666 | ||
| 4667 | /* Add an entry to the code/data map for section SEC. */ | |
| 4668 | ||
| 4669 | static void | |
| cec5225b | 4670 | elfNN_aarch64_section_map_add (asection *sec, char type, bfd_vma vma) |
| a06ea964 NC |
4671 | { |
| 4672 | struct _aarch64_elf_section_data *sec_data = | |
| cec5225b | 4673 | elf_aarch64_section_data (sec); |
| a06ea964 NC |
4674 | unsigned int newidx; |
| 4675 | ||
| 4676 | if (sec_data->map == NULL) | |
| 4677 | { | |
| cec5225b | 4678 | sec_data->map = bfd_malloc (sizeof (elf_aarch64_section_map)); |
| a06ea964 NC |
4679 | sec_data->mapcount = 0; |
| 4680 | sec_data->mapsize = 1; | |
| 4681 | } | |
| 4682 | ||
| 4683 | newidx = sec_data->mapcount++; | |
| 4684 | ||
| 4685 | if (sec_data->mapcount > sec_data->mapsize) | |
| 4686 | { | |
| 4687 | sec_data->mapsize *= 2; | |
| 4688 | sec_data->map = bfd_realloc_or_free | |
| cec5225b | 4689 | (sec_data->map, sec_data->mapsize * sizeof (elf_aarch64_section_map)); |
| a06ea964 NC |
4690 | } |
| 4691 | ||
| 4692 | if (sec_data->map) | |
| 4693 | { | |
| 4694 | sec_data->map[newidx].vma = vma; | |
| 4695 | sec_data->map[newidx].type = type; | |
| 4696 | } | |
| 4697 | } | |
| 4698 | ||
| 4699 | ||
| 4700 | /* Initialise maps of insn/data for input BFDs. */ | |
| 4701 | void | |
| cec5225b | 4702 | bfd_elfNN_aarch64_init_maps (bfd *abfd) |
| a06ea964 NC |
4703 | { |
| 4704 | Elf_Internal_Sym *isymbuf; | |
| 4705 | Elf_Internal_Shdr *hdr; | |
| 4706 | unsigned int i, localsyms; | |
| 4707 | ||
| 4708 | /* Make sure that we are dealing with an AArch64 elf binary. */ | |
| 4709 | if (!is_aarch64_elf (abfd)) | |
| 4710 | return; | |
| 4711 | ||
| 4712 | if ((abfd->flags & DYNAMIC) != 0) | |
| 68fcca92 | 4713 | return; |
| a06ea964 NC |
4714 | |
| 4715 | hdr = &elf_symtab_hdr (abfd); | |
| 4716 | localsyms = hdr->sh_info; | |
| 4717 | ||
| 4718 | /* Obtain a buffer full of symbols for this BFD. The hdr->sh_info field | |
| 4719 | should contain the number of local symbols, which should come before any | |
| 4720 | global symbols. Mapping symbols are always local. */ | |
| 4721 | isymbuf = bfd_elf_get_elf_syms (abfd, hdr, localsyms, 0, NULL, NULL, NULL); | |
| 4722 | ||
| 4723 | /* No internal symbols read? Skip this BFD. */ | |
| 4724 | if (isymbuf == NULL) | |
| 4725 | return; | |
| 4726 | ||
| 4727 | for (i = 0; i < localsyms; i++) | |
| 4728 | { | |
| 4729 | Elf_Internal_Sym *isym = &isymbuf[i]; | |
| 4730 | asection *sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 4731 | const char *name; | |
| 4732 | ||
| 4733 | if (sec != NULL && ELF_ST_BIND (isym->st_info) == STB_LOCAL) | |
| 4734 | { | |
| 4735 | name = bfd_elf_string_from_elf_section (abfd, | |
| 4736 | hdr->sh_link, | |
| 4737 | isym->st_name); | |
| 4738 | ||
| 4739 | if (bfd_is_aarch64_special_symbol_name | |
| 4740 | (name, BFD_AARCH64_SPECIAL_SYM_TYPE_MAP)) | |
| cec5225b | 4741 | elfNN_aarch64_section_map_add (sec, name[1], isym->st_value); |
| a06ea964 NC |
4742 | } |
| 4743 | } | |
| 4744 | } | |
| 4745 | ||
| 37c18eed SD |
4746 | static void |
| 4747 | setup_plt_values (struct bfd_link_info *link_info, | |
| 4748 | aarch64_plt_type plt_type) | |
| 4749 | { | |
| 4750 | struct elf_aarch64_link_hash_table *globals; | |
| 4751 | globals = elf_aarch64_hash_table (link_info); | |
| 4752 | ||
| 1dbade74 SD |
4753 | if (plt_type == PLT_BTI_PAC) |
| 4754 | { | |
| 68bb0359 | 4755 | globals->plt0_entry = elfNN_aarch64_small_plt0_bti_entry; |
| 1dbade74 SD |
4756 | |
| 4757 | /* Only in ET_EXEC we need PLTn with BTI. */ | |
| 4758 | if (bfd_link_pde (link_info)) | |
| 4759 | { | |
| 4760 | globals->plt_entry_size = PLT_BTI_PAC_SMALL_ENTRY_SIZE; | |
| 4761 | globals->plt_entry = elfNN_aarch64_small_plt_bti_pac_entry; | |
| 4762 | } | |
| 4763 | else | |
| 4764 | { | |
| 4765 | globals->plt_entry_size = PLT_PAC_SMALL_ENTRY_SIZE; | |
| 4766 | globals->plt_entry = elfNN_aarch64_small_plt_pac_entry; | |
| 4767 | } | |
| 4768 | } | |
| 4769 | else if (plt_type == PLT_BTI) | |
| 37c18eed | 4770 | { |
| 37c18eed | 4771 | globals->plt0_entry = elfNN_aarch64_small_plt0_bti_entry; |
| 37c18eed SD |
4772 | |
| 4773 | /* Only in ET_EXEC we need PLTn with BTI. */ | |
| 4774 | if (bfd_link_pde (link_info)) | |
| 4775 | { | |
| 4776 | globals->plt_entry_size = PLT_BTI_SMALL_ENTRY_SIZE; | |
| 4777 | globals->plt_entry = elfNN_aarch64_small_plt_bti_entry; | |
| 4778 | } | |
| 4779 | } | |
| 1dbade74 SD |
4780 | else if (plt_type == PLT_PAC) |
| 4781 | { | |
| 1dbade74 SD |
4782 | globals->plt_entry_size = PLT_PAC_SMALL_ENTRY_SIZE; |
| 4783 | globals->plt_entry = elfNN_aarch64_small_plt_pac_entry; | |
| 4784 | } | |
| 37c18eed SD |
4785 | } |
| 4786 | ||
| a06ea964 NC |
4787 | /* Set option values needed during linking. */ |
| 4788 | void | |
| cec5225b | 4789 | bfd_elfNN_aarch64_set_options (struct bfd *output_bfd, |
| a06ea964 NC |
4790 | struct bfd_link_info *link_info, |
| 4791 | int no_enum_warn, | |
| 68fcca92 | 4792 | int no_wchar_warn, int pic_veneer, |
| 4106101c | 4793 | int fix_erratum_835769, |
| 739b5c9c | 4794 | erratum_84319_opts fix_erratum_843419, |
| 37c18eed SD |
4795 | int no_apply_dynamic_relocs, |
| 4796 | aarch64_bti_pac_info bp_info) | |
| a06ea964 | 4797 | { |
| cec5225b | 4798 | struct elf_aarch64_link_hash_table *globals; |
| a06ea964 | 4799 | |
| cec5225b | 4800 | globals = elf_aarch64_hash_table (link_info); |
| a06ea964 | 4801 | globals->pic_veneer = pic_veneer; |
| 68fcca92 | 4802 | globals->fix_erratum_835769 = fix_erratum_835769; |
| 739b5c9c TC |
4803 | /* If the default options are used, then ERRAT_ADR will be set by default |
| 4804 | which will enable the ADRP->ADR workaround for the erratum 843419 | |
| 4805 | workaround. */ | |
| 4106101c | 4806 | globals->fix_erratum_843419 = fix_erratum_843419; |
| 1f56df9d | 4807 | globals->no_apply_dynamic_relocs = no_apply_dynamic_relocs; |
| a06ea964 NC |
4808 | |
| 4809 | BFD_ASSERT (is_aarch64_elf (output_bfd)); | |
| 4810 | elf_aarch64_tdata (output_bfd)->no_enum_size_warning = no_enum_warn; | |
| 4811 | elf_aarch64_tdata (output_bfd)->no_wchar_size_warning = no_wchar_warn; | |
| 37c18eed SD |
4812 | |
| 4813 | switch (bp_info.bti_type) | |
| 4814 | { | |
| 4815 | case BTI_WARN: | |
| 4816 | elf_aarch64_tdata (output_bfd)->no_bti_warn = 0; | |
| 4817 | elf_aarch64_tdata (output_bfd)->gnu_and_prop | |
| 4818 | |= GNU_PROPERTY_AARCH64_FEATURE_1_BTI; | |
| 4819 | break; | |
| 4820 | ||
| 4821 | default: | |
| 4822 | break; | |
| 4823 | } | |
| 4824 | elf_aarch64_tdata (output_bfd)->plt_type = bp_info.plt_type; | |
| 4825 | setup_plt_values (link_info, bp_info.plt_type); | |
| a06ea964 NC |
4826 | } |
| 4827 | ||
| a06ea964 NC |
4828 | static bfd_vma |
| 4829 | aarch64_calculate_got_entry_vma (struct elf_link_hash_entry *h, | |
| cec5225b | 4830 | struct elf_aarch64_link_hash_table |
| a06ea964 NC |
4831 | *globals, struct bfd_link_info *info, |
| 4832 | bfd_vma value, bfd *output_bfd, | |
| 4833 | bfd_boolean *unresolved_reloc_p) | |
| 4834 | { | |
| 4835 | bfd_vma off = (bfd_vma) - 1; | |
| 4836 | asection *basegot = globals->root.sgot; | |
| 4837 | bfd_boolean dyn = globals->root.dynamic_sections_created; | |
| 4838 | ||
| 4839 | if (h != NULL) | |
| 4840 | { | |
| a6bb11b2 | 4841 | BFD_ASSERT (basegot != NULL); |
| a06ea964 NC |
4842 | off = h->got.offset; |
| 4843 | BFD_ASSERT (off != (bfd_vma) - 1); | |
| 0e1862bb L |
4844 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) |
| 4845 | || (bfd_link_pic (info) | |
| a06ea964 NC |
4846 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
| 4847 | || (ELF_ST_VISIBILITY (h->other) | |
| 4848 | && h->root.type == bfd_link_hash_undefweak)) | |
| 4849 | { | |
| 4850 | /* This is actually a static link, or it is a -Bsymbolic link | |
| 4851 | and the symbol is defined locally. We must initialize this | |
| 4852 | entry in the global offset table. Since the offset must | |
| a6bb11b2 YZ |
4853 | always be a multiple of 8 (4 in the case of ILP32), we use |
| 4854 | the least significant bit to record whether we have | |
| 4855 | initialized it already. | |
| a06ea964 NC |
4856 | When doing a dynamic link, we create a .rel(a).got relocation |
| 4857 | entry to initialize the value. This is done in the | |
| 4858 | finish_dynamic_symbol routine. */ | |
| 4859 | if ((off & 1) != 0) | |
| 4860 | off &= ~1; | |
| 4861 | else | |
| 4862 | { | |
| cec5225b | 4863 | bfd_put_NN (output_bfd, value, basegot->contents + off); |
| a06ea964 NC |
4864 | h->got.offset |= 1; |
| 4865 | } | |
| 4866 | } | |
| 4867 | else | |
| 4868 | *unresolved_reloc_p = FALSE; | |
| 4869 | ||
| 4870 | off = off + basegot->output_section->vma + basegot->output_offset; | |
| 4871 | } | |
| 4872 | ||
| 4873 | return off; | |
| 4874 | } | |
| 4875 | ||
| 4876 | /* Change R_TYPE to a more efficient access model where possible, | |
| 4877 | return the new reloc type. */ | |
| 4878 | ||
| a6bb11b2 YZ |
4879 | static bfd_reloc_code_real_type |
| 4880 | aarch64_tls_transition_without_check (bfd_reloc_code_real_type r_type, | |
| a06ea964 NC |
4881 | struct elf_link_hash_entry *h) |
| 4882 | { | |
| 4883 | bfd_boolean is_local = h == NULL; | |
| a6bb11b2 | 4884 | |
| a06ea964 NC |
4885 | switch (r_type) |
| 4886 | { | |
| a6bb11b2 | 4887 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| ce336788 | 4888 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| a6bb11b2 YZ |
4889 | return (is_local |
| 4890 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 | |
| 4891 | : BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21); | |
| 4892 | ||
| 389b8029 MS |
4893 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| 4894 | return (is_local | |
| 4895 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC | |
| 4896 | : r_type); | |
| 4897 | ||
| 1ada945d MS |
4898 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 4899 | return (is_local | |
| 4900 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 | |
| 4901 | : BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19); | |
| 4902 | ||
| 0484b454 RL |
4903 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| 4904 | return (is_local | |
| 4905 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC | |
| 4906 | : BFD_RELOC_AARCH64_NONE); | |
| 4907 | ||
| 4908 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: | |
| 4909 | return (is_local | |
| 4910 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC | |
| 4911 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC); | |
| 4912 | ||
| 4913 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| 4914 | return (is_local | |
| 4915 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2 | |
| 4916 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1); | |
| 4917 | ||
| a6bb11b2 | 4918 | case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC: |
| ce336788 | 4919 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a6bb11b2 YZ |
4920 | return (is_local |
| 4921 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC | |
| 4922 | : BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC); | |
| 4923 | ||
| 4924 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: | |
| 4925 | return is_local ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1 : r_type; | |
| 4926 | ||
| 4927 | case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC: | |
| 4928 | return is_local ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC : r_type; | |
| 4929 | ||
| 043bf05a MS |
4930 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 4931 | return r_type; | |
| 4932 | ||
| 3c12b054 MS |
4933 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 4934 | return (is_local | |
| 4935 | ? BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12 | |
| 4936 | : BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19); | |
| 4937 | ||
| 0484b454 | 4938 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| f955cccf | 4939 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 4940 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| a06ea964 | 4941 | /* Instructions with these relocations will become NOPs. */ |
| a6bb11b2 YZ |
4942 | return BFD_RELOC_AARCH64_NONE; |
| 4943 | ||
| 259364ad JW |
4944 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| 4945 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: | |
| 4946 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: | |
| 4947 | return is_local ? BFD_RELOC_AARCH64_NONE : r_type; | |
| 4948 | ||
| ac734732 RL |
4949 | #if ARCH_SIZE == 64 |
| 4950 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: | |
| 4951 | return is_local | |
| 4952 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC | |
| 4953 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC; | |
| 4954 | ||
| 4955 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: | |
| 4956 | return is_local | |
| 4957 | ? BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2 | |
| 4958 | : BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1; | |
| 4959 | #endif | |
| 4960 | ||
| a6bb11b2 YZ |
4961 | default: |
| 4962 | break; | |
| a06ea964 NC |
4963 | } |
| 4964 | ||
| 4965 | return r_type; | |
| 4966 | } | |
| 4967 | ||
| 4968 | static unsigned int | |
| a6bb11b2 | 4969 | aarch64_reloc_got_type (bfd_reloc_code_real_type r_type) |
| a06ea964 NC |
4970 | { |
| 4971 | switch (r_type) | |
| 4972 | { | |
| a6bb11b2 YZ |
4973 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 4974 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: | |
| 7018c030 | 4975 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| ce336788 | 4976 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| a2e1db00 | 4977 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 99ad26cb | 4978 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| ce336788 | 4979 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| dc8008f5 | 4980 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 4981 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| a06ea964 NC |
4982 | return GOT_NORMAL; |
| 4983 | ||
| ce336788 | 4984 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a6bb11b2 | 4985 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 4986 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 7ba7cfe4 | 4987 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 4988 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| 73f925cc | 4989 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 4990 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 4991 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
4992 | return GOT_TLS_GD; |
| 4993 | ||
| 0484b454 | 4994 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| f955cccf | 4995 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 4996 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 4997 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| a6bb11b2 | 4998 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| a6bb11b2 | 4999 | case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC: |
| f955cccf | 5000 | case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12: |
| 1ada945d | 5001 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 0484b454 RL |
5002 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| 5003 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: | |
| 5004 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| a06ea964 NC |
5005 | return GOT_TLSDESC_GD; |
| 5006 | ||
| a6bb11b2 | 5007 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a6bb11b2 | 5008 | case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: |
| ce336788 | 5009 | case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: |
| 043bf05a | 5010 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 3b957e5b RL |
5011 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 5012 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| a06ea964 NC |
5013 | return GOT_TLS_IE; |
| 5014 | ||
| a6bb11b2 YZ |
5015 | default: |
| 5016 | break; | |
| a06ea964 NC |
5017 | } |
| 5018 | return GOT_UNKNOWN; | |
| 5019 | } | |
| 5020 | ||
| 5021 | static bfd_boolean | |
| 5022 | aarch64_can_relax_tls (bfd *input_bfd, | |
| 5023 | struct bfd_link_info *info, | |
| a6bb11b2 | 5024 | bfd_reloc_code_real_type r_type, |
| a06ea964 NC |
5025 | struct elf_link_hash_entry *h, |
| 5026 | unsigned long r_symndx) | |
| 5027 | { | |
| 5028 | unsigned int symbol_got_type; | |
| 5029 | unsigned int reloc_got_type; | |
| 5030 | ||
| 9331eea1 | 5031 | if (! IS_AARCH64_TLS_RELAX_RELOC (r_type)) |
| a06ea964 NC |
5032 | return FALSE; |
| 5033 | ||
| cec5225b | 5034 | symbol_got_type = elfNN_aarch64_symbol_got_type (h, input_bfd, r_symndx); |
| a06ea964 NC |
5035 | reloc_got_type = aarch64_reloc_got_type (r_type); |
| 5036 | ||
| 5037 | if (symbol_got_type == GOT_TLS_IE && GOT_TLS_GD_ANY_P (reloc_got_type)) | |
| 5038 | return TRUE; | |
| 5039 | ||
| 6dda7875 | 5040 | if (!bfd_link_executable (info)) |
| a06ea964 NC |
5041 | return FALSE; |
| 5042 | ||
| 5043 | if (h && h->root.type == bfd_link_hash_undefweak) | |
| 5044 | return FALSE; | |
| 5045 | ||
| 5046 | return TRUE; | |
| 5047 | } | |
| 5048 | ||
| a6bb11b2 YZ |
5049 | /* Given the relocation code R_TYPE, return the relaxed bfd reloc |
| 5050 | enumerator. */ | |
| 5051 | ||
| 5052 | static bfd_reloc_code_real_type | |
| a06ea964 NC |
5053 | aarch64_tls_transition (bfd *input_bfd, |
| 5054 | struct bfd_link_info *info, | |
| 5055 | unsigned int r_type, | |
| 5056 | struct elf_link_hash_entry *h, | |
| 5057 | unsigned long r_symndx) | |
| 5058 | { | |
| a6bb11b2 | 5059 | bfd_reloc_code_real_type bfd_r_type |
| 0aa13fee | 5060 | = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| a06ea964 | 5061 | |
| a6bb11b2 YZ |
5062 | if (! aarch64_can_relax_tls (input_bfd, info, bfd_r_type, h, r_symndx)) |
| 5063 | return bfd_r_type; | |
| 5064 | ||
| 5065 | return aarch64_tls_transition_without_check (bfd_r_type, h); | |
| a06ea964 NC |
5066 | } |
| 5067 | ||
| 5068 | /* Return the base VMA address which should be subtracted from real addresses | |
| a6bb11b2 | 5069 | when resolving R_AARCH64_TLS_DTPREL relocation. */ |
| a06ea964 NC |
5070 | |
| 5071 | static bfd_vma | |
| 5072 | dtpoff_base (struct bfd_link_info *info) | |
| 5073 | { | |
| 5074 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
| 5075 | BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL); | |
| 5076 | return elf_hash_table (info)->tls_sec->vma; | |
| 5077 | } | |
| 5078 | ||
| a06ea964 NC |
5079 | /* Return the base VMA address which should be subtracted from real addresses |
| 5080 | when resolving R_AARCH64_TLS_GOTTPREL64 relocations. */ | |
| 5081 | ||
| 5082 | static bfd_vma | |
| 5083 | tpoff_base (struct bfd_link_info *info) | |
| 5084 | { | |
| 5085 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 5086 | ||
| 5087 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
| ac21917f | 5088 | BFD_ASSERT (htab->tls_sec != NULL); |
| a06ea964 NC |
5089 | |
| 5090 | bfd_vma base = align_power ((bfd_vma) TCB_SIZE, | |
| 5091 | htab->tls_sec->alignment_power); | |
| 5092 | return htab->tls_sec->vma - base; | |
| 5093 | } | |
| 5094 | ||
| 5095 | static bfd_vma * | |
| 5096 | symbol_got_offset_ref (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5097 | unsigned long r_symndx) | |
| 5098 | { | |
| 5099 | /* Calculate the address of the GOT entry for symbol | |
| 5100 | referred to in h. */ | |
| 5101 | if (h != NULL) | |
| 5102 | return &h->got.offset; | |
| 5103 | else | |
| 5104 | { | |
| 5105 | /* local symbol */ | |
| 5106 | struct elf_aarch64_local_symbol *l; | |
| 5107 | ||
| cec5225b | 5108 | l = elf_aarch64_locals (input_bfd); |
| a06ea964 NC |
5109 | return &l[r_symndx].got_offset; |
| 5110 | } | |
| 5111 | } | |
| 5112 | ||
| 5113 | static void | |
| 5114 | symbol_got_offset_mark (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5115 | unsigned long r_symndx) | |
| 5116 | { | |
| 5117 | bfd_vma *p; | |
| 5118 | p = symbol_got_offset_ref (input_bfd, h, r_symndx); | |
| 5119 | *p |= 1; | |
| 5120 | } | |
| 5121 | ||
| 5122 | static int | |
| 5123 | symbol_got_offset_mark_p (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5124 | unsigned long r_symndx) | |
| 5125 | { | |
| 5126 | bfd_vma value; | |
| 5127 | value = * symbol_got_offset_ref (input_bfd, h, r_symndx); | |
| 5128 | return value & 1; | |
| 5129 | } | |
| 5130 | ||
| 5131 | static bfd_vma | |
| 5132 | symbol_got_offset (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5133 | unsigned long r_symndx) | |
| 5134 | { | |
| 5135 | bfd_vma value; | |
| 5136 | value = * symbol_got_offset_ref (input_bfd, h, r_symndx); | |
| 5137 | value &= ~1; | |
| 5138 | return value; | |
| 5139 | } | |
| 5140 | ||
| 5141 | static bfd_vma * | |
| 5142 | symbol_tlsdesc_got_offset_ref (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5143 | unsigned long r_symndx) | |
| 5144 | { | |
| 5145 | /* Calculate the address of the GOT entry for symbol | |
| 5146 | referred to in h. */ | |
| 5147 | if (h != NULL) | |
| 5148 | { | |
| cec5225b YZ |
5149 | struct elf_aarch64_link_hash_entry *eh; |
| 5150 | eh = (struct elf_aarch64_link_hash_entry *) h; | |
| a06ea964 NC |
5151 | return &eh->tlsdesc_got_jump_table_offset; |
| 5152 | } | |
| 5153 | else | |
| 5154 | { | |
| 5155 | /* local symbol */ | |
| 5156 | struct elf_aarch64_local_symbol *l; | |
| 5157 | ||
| cec5225b | 5158 | l = elf_aarch64_locals (input_bfd); |
| a06ea964 NC |
5159 | return &l[r_symndx].tlsdesc_got_jump_table_offset; |
| 5160 | } | |
| 5161 | } | |
| 5162 | ||
| 5163 | static void | |
| 5164 | symbol_tlsdesc_got_offset_mark (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5165 | unsigned long r_symndx) | |
| 5166 | { | |
| 5167 | bfd_vma *p; | |
| 5168 | p = symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx); | |
| 5169 | *p |= 1; | |
| 5170 | } | |
| 5171 | ||
| 5172 | static int | |
| 5173 | symbol_tlsdesc_got_offset_mark_p (bfd *input_bfd, | |
| 5174 | struct elf_link_hash_entry *h, | |
| 5175 | unsigned long r_symndx) | |
| 5176 | { | |
| 5177 | bfd_vma value; | |
| 5178 | value = * symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx); | |
| 5179 | return value & 1; | |
| 5180 | } | |
| 5181 | ||
| 5182 | static bfd_vma | |
| 5183 | symbol_tlsdesc_got_offset (bfd *input_bfd, struct elf_link_hash_entry *h, | |
| 5184 | unsigned long r_symndx) | |
| 5185 | { | |
| 5186 | bfd_vma value; | |
| 5187 | value = * symbol_tlsdesc_got_offset_ref (input_bfd, h, r_symndx); | |
| 5188 | value &= ~1; | |
| 5189 | return value; | |
| 5190 | } | |
| 5191 | ||
| 68fcca92 JW |
5192 | /* Data for make_branch_to_erratum_835769_stub(). */ |
| 5193 | ||
| 5194 | struct erratum_835769_branch_to_stub_data | |
| 5195 | { | |
| 4106101c | 5196 | struct bfd_link_info *info; |
| 68fcca92 JW |
5197 | asection *output_section; |
| 5198 | bfd_byte *contents; | |
| 5199 | }; | |
| 5200 | ||
| 5201 | /* Helper to insert branches to erratum 835769 stubs in the right | |
| 5202 | places for a particular section. */ | |
| 5203 | ||
| 5204 | static bfd_boolean | |
| 5205 | make_branch_to_erratum_835769_stub (struct bfd_hash_entry *gen_entry, | |
| 5206 | void *in_arg) | |
| 5207 | { | |
| 5208 | struct elf_aarch64_stub_hash_entry *stub_entry; | |
| 5209 | struct erratum_835769_branch_to_stub_data *data; | |
| 5210 | bfd_byte *contents; | |
| 5211 | unsigned long branch_insn = 0; | |
| 5212 | bfd_vma veneered_insn_loc, veneer_entry_loc; | |
| 5213 | bfd_signed_vma branch_offset; | |
| 5214 | unsigned int target; | |
| 5215 | bfd *abfd; | |
| 5216 | ||
| 5217 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; | |
| 5218 | data = (struct erratum_835769_branch_to_stub_data *) in_arg; | |
| 5219 | ||
| 5220 | if (stub_entry->target_section != data->output_section | |
| 5221 | || stub_entry->stub_type != aarch64_stub_erratum_835769_veneer) | |
| 5222 | return TRUE; | |
| 5223 | ||
| 5224 | contents = data->contents; | |
| 5225 | veneered_insn_loc = stub_entry->target_section->output_section->vma | |
| 5226 | + stub_entry->target_section->output_offset | |
| 5227 | + stub_entry->target_value; | |
| 5228 | veneer_entry_loc = stub_entry->stub_sec->output_section->vma | |
| 5229 | + stub_entry->stub_sec->output_offset | |
| 5230 | + stub_entry->stub_offset; | |
| 5231 | branch_offset = veneer_entry_loc - veneered_insn_loc; | |
| 5232 | ||
| 5233 | abfd = stub_entry->target_section->owner; | |
| 5234 | if (!aarch64_valid_branch_p (veneer_entry_loc, veneered_insn_loc)) | |
| 4eca0228 | 5235 | _bfd_error_handler |
| 90b6238f | 5236 | (_("%pB: error: erratum 835769 stub out " |
| 4eca0228 | 5237 | "of range (input file too large)"), abfd); |
| 68fcca92 JW |
5238 | |
| 5239 | target = stub_entry->target_value; | |
| 5240 | branch_insn = 0x14000000; | |
| 5241 | branch_offset >>= 2; | |
| 5242 | branch_offset &= 0x3ffffff; | |
| 5243 | branch_insn |= branch_offset; | |
| 5244 | bfd_putl32 (branch_insn, &contents[target]); | |
| 5245 | ||
| 5246 | return TRUE; | |
| 5247 | } | |
| 5248 | ||
| 4106101c MS |
5249 | |
| 5250 | static bfd_boolean | |
| 5251 | _bfd_aarch64_erratum_843419_branch_to_stub (struct bfd_hash_entry *gen_entry, | |
| 5252 | void *in_arg) | |
| 5253 | { | |
| 5254 | struct elf_aarch64_stub_hash_entry *stub_entry | |
| 5255 | = (struct elf_aarch64_stub_hash_entry *) gen_entry; | |
| 5256 | struct erratum_835769_branch_to_stub_data *data | |
| 5257 | = (struct erratum_835769_branch_to_stub_data *) in_arg; | |
| 5258 | struct bfd_link_info *info; | |
| 5259 | struct elf_aarch64_link_hash_table *htab; | |
| 5260 | bfd_byte *contents; | |
| 5261 | asection *section; | |
| 5262 | bfd *abfd; | |
| 5263 | bfd_vma place; | |
| 5264 | uint32_t insn; | |
| 5265 | ||
| 5266 | info = data->info; | |
| 5267 | contents = data->contents; | |
| 5268 | section = data->output_section; | |
| 5269 | ||
| 5270 | htab = elf_aarch64_hash_table (info); | |
| 5271 | ||
| 5272 | if (stub_entry->target_section != section | |
| 5273 | || stub_entry->stub_type != aarch64_stub_erratum_843419_veneer) | |
| 5274 | return TRUE; | |
| 5275 | ||
| 739b5c9c TC |
5276 | BFD_ASSERT (((htab->fix_erratum_843419 & ERRAT_ADRP) && stub_entry->stub_sec) |
| 5277 | || (htab->fix_erratum_843419 & ERRAT_ADR)); | |
| 5278 | ||
| 5279 | /* Only update the stub section if we have one. We should always have one if | |
| 5280 | we're allowed to use the ADRP errata workaround, otherwise it is not | |
| 5281 | required. */ | |
| 5282 | if (stub_entry->stub_sec) | |
| 5283 | { | |
| 5284 | insn = bfd_getl32 (contents + stub_entry->target_value); | |
| 5285 | bfd_putl32 (insn, | |
| 5286 | stub_entry->stub_sec->contents + stub_entry->stub_offset); | |
| 5287 | } | |
| 4106101c MS |
5288 | |
| 5289 | place = (section->output_section->vma + section->output_offset | |
| 5290 | + stub_entry->adrp_offset); | |
| 5291 | insn = bfd_getl32 (contents + stub_entry->adrp_offset); | |
| 5292 | ||
| 9fca35fc | 5293 | if (!_bfd_aarch64_adrp_p (insn)) |
| 4106101c MS |
5294 | abort (); |
| 5295 | ||
| 5296 | bfd_signed_vma imm = | |
| 5297 | (_bfd_aarch64_sign_extend | |
| 5298 | ((bfd_vma) _bfd_aarch64_decode_adrp_imm (insn) << 12, 33) | |
| 5299 | - (place & 0xfff)); | |
| 5300 | ||
| 739b5c9c | 5301 | if ((htab->fix_erratum_843419 & ERRAT_ADR) |
| 4106101c MS |
5302 | && (imm >= AARCH64_MIN_ADRP_IMM && imm <= AARCH64_MAX_ADRP_IMM)) |
| 5303 | { | |
| 5304 | insn = (_bfd_aarch64_reencode_adr_imm (AARCH64_ADR_OP, imm) | |
| 5305 | | AARCH64_RT (insn)); | |
| 5306 | bfd_putl32 (insn, contents + stub_entry->adrp_offset); | |
| 739b5c9c TC |
5307 | /* Stub is not needed, don't map it out. */ |
| 5308 | stub_entry->stub_type = aarch64_stub_none; | |
| 4106101c | 5309 | } |
| 739b5c9c | 5310 | else if (htab->fix_erratum_843419 & ERRAT_ADRP) |
| 4106101c MS |
5311 | { |
| 5312 | bfd_vma veneered_insn_loc; | |
| 5313 | bfd_vma veneer_entry_loc; | |
| 5314 | bfd_signed_vma branch_offset; | |
| 5315 | uint32_t branch_insn; | |
| 5316 | ||
| 5317 | veneered_insn_loc = stub_entry->target_section->output_section->vma | |
| 5318 | + stub_entry->target_section->output_offset | |
| 5319 | + stub_entry->target_value; | |
| 5320 | veneer_entry_loc = stub_entry->stub_sec->output_section->vma | |
| 5321 | + stub_entry->stub_sec->output_offset | |
| 5322 | + stub_entry->stub_offset; | |
| 5323 | branch_offset = veneer_entry_loc - veneered_insn_loc; | |
| 5324 | ||
| 5325 | abfd = stub_entry->target_section->owner; | |
| 5326 | if (!aarch64_valid_branch_p (veneer_entry_loc, veneered_insn_loc)) | |
| 4eca0228 | 5327 | _bfd_error_handler |
| 90b6238f | 5328 | (_("%pB: error: erratum 843419 stub out " |
| 4106101c MS |
5329 | "of range (input file too large)"), abfd); |
| 5330 | ||
| 5331 | branch_insn = 0x14000000; | |
| 5332 | branch_offset >>= 2; | |
| 5333 | branch_offset &= 0x3ffffff; | |
| 5334 | branch_insn |= branch_offset; | |
| 5335 | bfd_putl32 (branch_insn, contents + stub_entry->target_value); | |
| 5336 | } | |
| 739b5c9c TC |
5337 | else |
| 5338 | { | |
| 5339 | abfd = stub_entry->target_section->owner; | |
| 5340 | _bfd_error_handler | |
| 64672071 | 5341 | (_("%pB: error: erratum 843419 immediate 0x%" BFD_VMA_FMT "x " |
| 739b5c9c TC |
5342 | "out of range for ADR (input file too large) and " |
| 5343 | "--fix-cortex-a53-843419=adr used. Run the linker with " | |
| 5344 | "--fix-cortex-a53-843419=full instead"), abfd, imm); | |
| 5345 | bfd_set_error (bfd_error_bad_value); | |
| 5346 | /* This function is called inside a hashtable traversal and the error | |
| 5347 | handlers called above turn into non-fatal errors. Which means this | |
| 5348 | case ld returns an exit code 0 and also produces a broken object file. | |
| 5349 | To prevent this, issue a hard abort. */ | |
| 5350 | BFD_FAIL (); | |
| 5351 | } | |
| 4106101c MS |
5352 | return TRUE; |
| 5353 | } | |
| 5354 | ||
| 5355 | ||
| 68fcca92 JW |
5356 | static bfd_boolean |
| 5357 | elfNN_aarch64_write_section (bfd *output_bfd ATTRIBUTE_UNUSED, | |
| 5358 | struct bfd_link_info *link_info, | |
| 5359 | asection *sec, | |
| 5360 | bfd_byte *contents) | |
| 5361 | ||
| 5362 | { | |
| 5363 | struct elf_aarch64_link_hash_table *globals = | |
| f872121a | 5364 | elf_aarch64_hash_table (link_info); |
| 68fcca92 JW |
5365 | |
| 5366 | if (globals == NULL) | |
| 5367 | return FALSE; | |
| 5368 | ||
| 5369 | /* Fix code to point to erratum 835769 stubs. */ | |
| 5370 | if (globals->fix_erratum_835769) | |
| 5371 | { | |
| 5372 | struct erratum_835769_branch_to_stub_data data; | |
| 5373 | ||
| 4106101c | 5374 | data.info = link_info; |
| 68fcca92 JW |
5375 | data.output_section = sec; |
| 5376 | data.contents = contents; | |
| 5377 | bfd_hash_traverse (&globals->stub_hash_table, | |
| 5378 | make_branch_to_erratum_835769_stub, &data); | |
| 5379 | } | |
| 5380 | ||
| 4106101c MS |
5381 | if (globals->fix_erratum_843419) |
| 5382 | { | |
| 5383 | struct erratum_835769_branch_to_stub_data data; | |
| 5384 | ||
| 5385 | data.info = link_info; | |
| 5386 | data.output_section = sec; | |
| 5387 | data.contents = contents; | |
| 5388 | bfd_hash_traverse (&globals->stub_hash_table, | |
| 5389 | _bfd_aarch64_erratum_843419_branch_to_stub, &data); | |
| 5390 | } | |
| 5391 | ||
| 68fcca92 JW |
5392 | return FALSE; |
| 5393 | } | |
| 5394 | ||
| 2aff25ba JW |
5395 | /* Return TRUE if RELOC is a relocation against the base of GOT table. */ |
| 5396 | ||
| 5397 | static bfd_boolean | |
| 5398 | aarch64_relocation_aginst_gp_p (bfd_reloc_code_real_type reloc) | |
| 5399 | { | |
| 5400 | return (reloc == BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14 | |
| 5401 | || reloc == BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15 | |
| 5402 | || reloc == BFD_RELOC_AARCH64_LD64_GOTOFF_LO15 | |
| 5403 | || reloc == BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC | |
| 5404 | || reloc == BFD_RELOC_AARCH64_MOVW_GOTOFF_G1); | |
| 5405 | } | |
| 5406 | ||
| 4e7fbb34 JW |
5407 | /* Perform a relocation as part of a final link. The input relocation type |
| 5408 | should be TLS relaxed. */ | |
| 5409 | ||
| a06ea964 | 5410 | static bfd_reloc_status_type |
| cec5225b | 5411 | elfNN_aarch64_final_link_relocate (reloc_howto_type *howto, |
| a06ea964 NC |
5412 | bfd *input_bfd, |
| 5413 | bfd *output_bfd, | |
| 5414 | asection *input_section, | |
| 5415 | bfd_byte *contents, | |
| 5416 | Elf_Internal_Rela *rel, | |
| 5417 | bfd_vma value, | |
| 5418 | struct bfd_link_info *info, | |
| 5419 | asection *sym_sec, | |
| 5420 | struct elf_link_hash_entry *h, | |
| 5421 | bfd_boolean *unresolved_reloc_p, | |
| 5422 | bfd_boolean save_addend, | |
| 1419bbe5 WN |
5423 | bfd_vma *saved_addend, |
| 5424 | Elf_Internal_Sym *sym) | |
| a06ea964 | 5425 | { |
| 1419bbe5 | 5426 | Elf_Internal_Shdr *symtab_hdr; |
| a06ea964 | 5427 | unsigned int r_type = howto->type; |
| a6bb11b2 YZ |
5428 | bfd_reloc_code_real_type bfd_r_type |
| 5429 | = elfNN_aarch64_bfd_reloc_from_howto (howto); | |
| a06ea964 NC |
5430 | unsigned long r_symndx; |
| 5431 | bfd_byte *hit_data = contents + rel->r_offset; | |
| 96d01d93 | 5432 | bfd_vma place, off, got_entry_addr = 0; |
| a06ea964 | 5433 | bfd_signed_vma signed_addend; |
| cec5225b | 5434 | struct elf_aarch64_link_hash_table *globals; |
| a06ea964 | 5435 | bfd_boolean weak_undef_p; |
| ff07562f | 5436 | bfd_boolean relative_reloc; |
| b53b1bed | 5437 | asection *base_got; |
| ff07562f | 5438 | bfd_vma orig_value = value; |
| ddb7fd0f | 5439 | bfd_boolean resolved_to_zero; |
| 0c1ded8d | 5440 | bfd_boolean abs_symbol_p; |
| a06ea964 | 5441 | |
| cec5225b | 5442 | globals = elf_aarch64_hash_table (info); |
| a06ea964 | 5443 | |
| 1419bbe5 WN |
5444 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5445 | ||
| a06ea964 NC |
5446 | BFD_ASSERT (is_aarch64_elf (input_bfd)); |
| 5447 | ||
| cec5225b | 5448 | r_symndx = ELFNN_R_SYM (rel->r_info); |
| a06ea964 | 5449 | |
| a06ea964 NC |
5450 | place = input_section->output_section->vma |
| 5451 | + input_section->output_offset + rel->r_offset; | |
| 5452 | ||
| 5453 | /* Get addend, accumulating the addend for consecutive relocs | |
| 5454 | which refer to the same offset. */ | |
| 5455 | signed_addend = saved_addend ? *saved_addend : 0; | |
| 5456 | signed_addend += rel->r_addend; | |
| 5457 | ||
| 5458 | weak_undef_p = (h ? h->root.type == bfd_link_hash_undefweak | |
| 5459 | : bfd_is_und_section (sym_sec)); | |
| c691de6a | 5460 | abs_symbol_p = h != NULL && bfd_is_abs_symbol (&h->root); |
| 0c1ded8d | 5461 | |
| a6bb11b2 | 5462 | |
| 1419bbe5 WN |
5463 | /* Since STT_GNU_IFUNC symbol must go through PLT, we handle |
| 5464 | it here if it is defined in a non-shared object. */ | |
| 5465 | if (h != NULL | |
| 5466 | && h->type == STT_GNU_IFUNC | |
| 5467 | && h->def_regular) | |
| 5468 | { | |
| 5469 | asection *plt; | |
| 5470 | const char *name; | |
| 99ad26cb | 5471 | bfd_vma addend = 0; |
| 1419bbe5 | 5472 | |
| 545bc2b3 SN |
5473 | if ((input_section->flags & SEC_ALLOC) == 0) |
| 5474 | { | |
| f657f8c4 NC |
5475 | /* If this is a SHT_NOTE section without SHF_ALLOC, treat |
| 5476 | STT_GNU_IFUNC symbol as STT_FUNC. */ | |
| 5477 | if (elf_section_type (input_section) == SHT_NOTE) | |
| 5478 | goto skip_ifunc; | |
| 5479 | ||
| 545bc2b3 SN |
5480 | /* Dynamic relocs are not propagated for SEC_DEBUGGING |
| 5481 | sections because such sections are not SEC_ALLOC and | |
| 5482 | thus ld.so will not process them. */ | |
| 5483 | if ((input_section->flags & SEC_DEBUGGING) != 0) | |
| 5484 | return bfd_reloc_ok; | |
| 5485 | ||
| 5486 | if (h->root.root.string) | |
| 5487 | name = h->root.root.string; | |
| 5488 | else | |
| 5489 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, NULL); | |
| 5490 | _bfd_error_handler | |
| 5491 | /* xgettext:c-format */ | |
| 2dcf00ce AM |
5492 | (_("%pB(%pA+%#" PRIx64 "): " |
| 5493 | "unresolvable %s relocation against symbol `%s'"), | |
| 5494 | input_bfd, input_section, (uint64_t) rel->r_offset, | |
| 5495 | howto->name, name); | |
| 545bc2b3 | 5496 | bfd_set_error (bfd_error_bad_value); |
| 1d75a8e2 | 5497 | return bfd_reloc_notsupported; |
| 545bc2b3 SN |
5498 | } |
| 5499 | else if (h->plt.offset == (bfd_vma) -1) | |
| 5500 | goto bad_ifunc_reloc; | |
| 1419bbe5 WN |
5501 | |
| 5502 | /* STT_GNU_IFUNC symbol must go through PLT. */ | |
| 5503 | plt = globals->root.splt ? globals->root.splt : globals->root.iplt; | |
| 5504 | value = (plt->output_section->vma + plt->output_offset + h->plt.offset); | |
| 5505 | ||
| 5506 | switch (bfd_r_type) | |
| 5507 | { | |
| 5508 | default: | |
| 545bc2b3 | 5509 | bad_ifunc_reloc: |
| 1419bbe5 WN |
5510 | if (h->root.root.string) |
| 5511 | name = h->root.root.string; | |
| 5512 | else | |
| 5513 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, | |
| 5514 | NULL); | |
| 4eca0228 | 5515 | _bfd_error_handler |
| 695344c0 | 5516 | /* xgettext:c-format */ |
| 871b3ab2 | 5517 | (_("%pB: relocation %s against STT_GNU_IFUNC " |
| 1419bbe5 WN |
5518 | "symbol `%s' isn't handled by %s"), input_bfd, |
| 5519 | howto->name, name, __FUNCTION__); | |
| 5520 | bfd_set_error (bfd_error_bad_value); | |
| 1d75a8e2 | 5521 | return bfd_reloc_notsupported; |
| 1419bbe5 WN |
5522 | |
| 5523 | case BFD_RELOC_AARCH64_NN: | |
| 5524 | if (rel->r_addend != 0) | |
| 5525 | { | |
| 5526 | if (h->root.root.string) | |
| 5527 | name = h->root.root.string; | |
| 5528 | else | |
| 5529 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, | |
| 5530 | sym, NULL); | |
| 4eca0228 | 5531 | _bfd_error_handler |
| 695344c0 | 5532 | /* xgettext:c-format */ |
| 871b3ab2 | 5533 | (_("%pB: relocation %s against STT_GNU_IFUNC " |
| 2dcf00ce AM |
5534 | "symbol `%s' has non-zero addend: %" PRId64), |
| 5535 | input_bfd, howto->name, name, (int64_t) rel->r_addend); | |
| 1419bbe5 | 5536 | bfd_set_error (bfd_error_bad_value); |
| 1d75a8e2 | 5537 | return bfd_reloc_notsupported; |
| 1419bbe5 WN |
5538 | } |
| 5539 | ||
| 5540 | /* Generate dynamic relocation only when there is a | |
| 5541 | non-GOT reference in a shared object. */ | |
| 0e1862bb | 5542 | if (bfd_link_pic (info) && h->non_got_ref) |
| 1419bbe5 WN |
5543 | { |
| 5544 | Elf_Internal_Rela outrel; | |
| 5545 | asection *sreloc; | |
| 5546 | ||
| 5547 | /* Need a dynamic relocation to get the real function | |
| 5548 | address. */ | |
| 5549 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, | |
| 5550 | info, | |
| 5551 | input_section, | |
| 5552 | rel->r_offset); | |
| 5553 | if (outrel.r_offset == (bfd_vma) -1 | |
| 5554 | || outrel.r_offset == (bfd_vma) -2) | |
| 5555 | abort (); | |
| 5556 | ||
| 5557 | outrel.r_offset += (input_section->output_section->vma | |
| 5558 | + input_section->output_offset); | |
| 5559 | ||
| 5560 | if (h->dynindx == -1 | |
| 5561 | || h->forced_local | |
| 0e1862bb | 5562 | || bfd_link_executable (info)) |
| 1419bbe5 WN |
5563 | { |
| 5564 | /* This symbol is resolved locally. */ | |
| 5565 | outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (IRELATIVE)); | |
| 5566 | outrel.r_addend = (h->root.u.def.value | |
| 5567 | + h->root.u.def.section->output_section->vma | |
| 5568 | + h->root.u.def.section->output_offset); | |
| 5569 | } | |
| 5570 | else | |
| 5571 | { | |
| 5572 | outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type); | |
| 5573 | outrel.r_addend = 0; | |
| 5574 | } | |
| 5575 | ||
| 5576 | sreloc = globals->root.irelifunc; | |
| 5577 | elf_append_rela (output_bfd, sreloc, &outrel); | |
| 5578 | ||
| 5579 | /* If this reloc is against an external symbol, we | |
| 5580 | do not want to fiddle with the addend. Otherwise, | |
| 5581 | we need to include the symbol value so that it | |
| 5582 | becomes an addend for the dynamic reloc. For an | |
| 5583 | internal symbol, we have updated addend. */ | |
| 5584 | return bfd_reloc_ok; | |
| 5585 | } | |
| 5586 | /* FALLTHROUGH */ | |
| 1419bbe5 | 5587 | case BFD_RELOC_AARCH64_CALL26: |
| ce336788 | 5588 | case BFD_RELOC_AARCH64_JUMP26: |
| 652afeef TC |
5589 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5590 | place, value, | |
| 1419bbe5 WN |
5591 | signed_addend, |
| 5592 | weak_undef_p); | |
| 5593 | return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type, | |
| 5594 | howto, value); | |
| 1419bbe5 WN |
5595 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 5596 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: | |
| 7018c030 | 5597 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| ce336788 | 5598 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| 99ad26cb | 5599 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| dc8008f5 | 5600 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 5601 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| a2e1db00 | 5602 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| ce336788 | 5603 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| 1419bbe5 WN |
5604 | base_got = globals->root.sgot; |
| 5605 | off = h->got.offset; | |
| 5606 | ||
| 5607 | if (base_got == NULL) | |
| 5608 | abort (); | |
| 5609 | ||
| 5610 | if (off == (bfd_vma) -1) | |
| 5611 | { | |
| 5612 | bfd_vma plt_index; | |
| 5613 | ||
| 5614 | /* We can't use h->got.offset here to save state, or | |
| 5615 | even just remember the offset, as finish_dynamic_symbol | |
| 5616 | would use that as offset into .got. */ | |
| 5617 | ||
| 5618 | if (globals->root.splt != NULL) | |
| 5619 | { | |
| b1ee0cc4 WN |
5620 | plt_index = ((h->plt.offset - globals->plt_header_size) / |
| 5621 | globals->plt_entry_size); | |
| 1419bbe5 WN |
5622 | off = (plt_index + 3) * GOT_ENTRY_SIZE; |
| 5623 | base_got = globals->root.sgotplt; | |
| 5624 | } | |
| 5625 | else | |
| 5626 | { | |
| 5627 | plt_index = h->plt.offset / globals->plt_entry_size; | |
| 5628 | off = plt_index * GOT_ENTRY_SIZE; | |
| 5629 | base_got = globals->root.igotplt; | |
| 5630 | } | |
| 5631 | ||
| 5632 | if (h->dynindx == -1 | |
| 5633 | || h->forced_local | |
| 5634 | || info->symbolic) | |
| 5635 | { | |
| 5636 | /* This references the local definition. We must | |
| 5637 | initialize this entry in the global offset table. | |
| 5638 | Since the offset must always be a multiple of 8, | |
| 5639 | we use the least significant bit to record | |
| 5640 | whether we have initialized it already. | |
| 5641 | ||
| 5642 | When doing a dynamic link, we create a .rela.got | |
| 5643 | relocation entry to initialize the value. This | |
| 5644 | is done in the finish_dynamic_symbol routine. */ | |
| 5645 | if ((off & 1) != 0) | |
| 5646 | off &= ~1; | |
| 5647 | else | |
| 5648 | { | |
| 5649 | bfd_put_NN (output_bfd, value, | |
| 5650 | base_got->contents + off); | |
| 5651 | /* Note that this is harmless as -1 | 1 still is -1. */ | |
| 5652 | h->got.offset |= 1; | |
| 5653 | } | |
| 5654 | } | |
| 5655 | value = (base_got->output_section->vma | |
| 5656 | + base_got->output_offset + off); | |
| 5657 | } | |
| 5658 | else | |
| 5659 | value = aarch64_calculate_got_entry_vma (h, globals, info, | |
| 5660 | value, output_bfd, | |
| 5661 | unresolved_reloc_p); | |
| a0becb89 | 5662 | |
| 2aff25ba JW |
5663 | if (aarch64_relocation_aginst_gp_p (bfd_r_type)) |
| 5664 | addend = (globals->root.sgot->output_section->vma | |
| 5665 | + globals->root.sgot->output_offset); | |
| a0becb89 | 5666 | |
| 652afeef TC |
5667 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5668 | place, value, | |
| 99ad26cb | 5669 | addend, weak_undef_p); |
| 1419bbe5 | 5670 | return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type, howto, value); |
| 1419bbe5 | 5671 | case BFD_RELOC_AARCH64_ADD_LO12: |
| ce336788 | 5672 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: |
| 1419bbe5 WN |
5673 | break; |
| 5674 | } | |
| 5675 | } | |
| 5676 | ||
| f657f8c4 | 5677 | skip_ifunc: |
| ddb7fd0f L |
5678 | resolved_to_zero = (h != NULL |
| 5679 | && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); | |
| 5680 | ||
| a6bb11b2 | 5681 | switch (bfd_r_type) |
| a06ea964 | 5682 | { |
| a6bb11b2 | 5683 | case BFD_RELOC_AARCH64_NONE: |
| 0484b454 | 5684 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| a6bb11b2 | 5685 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| 0484b454 | 5686 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| a06ea964 NC |
5687 | *unresolved_reloc_p = FALSE; |
| 5688 | return bfd_reloc_ok; | |
| 5689 | ||
| a6bb11b2 | 5690 | case BFD_RELOC_AARCH64_NN: |
| a06ea964 NC |
5691 | |
| 5692 | /* When generating a shared object or relocatable executable, these | |
| 07d6d2b8 AM |
5693 | relocations are copied into the output file to be resolved at |
| 5694 | run time. */ | |
| 6353d82b JW |
5695 | if (((bfd_link_pic (info) |
| 5696 | || globals->root.is_relocatable_executable) | |
| 5697 | && (input_section->flags & SEC_ALLOC) | |
| 5698 | && (h == NULL | |
| ddb7fd0f L |
5699 | || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
| 5700 | && !resolved_to_zero) | |
| 6353d82b JW |
5701 | || h->root.type != bfd_link_hash_undefweak)) |
| 5702 | /* Or we are creating an executable, we may need to keep relocations | |
| 5703 | for symbols satisfied by a dynamic library if we manage to avoid | |
| 5704 | copy relocs for the symbol. */ | |
| 5705 | || (ELIMINATE_COPY_RELOCS | |
| 5706 | && !bfd_link_pic (info) | |
| 5707 | && h != NULL | |
| 5708 | && (input_section->flags & SEC_ALLOC) | |
| 5709 | && h->dynindx != -1 | |
| 5710 | && !h->non_got_ref | |
| 5711 | && ((h->def_dynamic | |
| 5712 | && !h->def_regular) | |
| 5713 | || h->root.type == bfd_link_hash_undefweak | |
| 5714 | || h->root.type == bfd_link_hash_undefined))) | |
| a06ea964 NC |
5715 | { |
| 5716 | Elf_Internal_Rela outrel; | |
| 5717 | bfd_byte *loc; | |
| 5718 | bfd_boolean skip, relocate; | |
| 5719 | asection *sreloc; | |
| 5720 | ||
| 5721 | *unresolved_reloc_p = FALSE; | |
| 5722 | ||
| a06ea964 NC |
5723 | skip = FALSE; |
| 5724 | relocate = FALSE; | |
| 5725 | ||
| 5726 | outrel.r_addend = signed_addend; | |
| 5727 | outrel.r_offset = | |
| 5728 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 5729 | rel->r_offset); | |
| 5730 | if (outrel.r_offset == (bfd_vma) - 1) | |
| 5731 | skip = TRUE; | |
| 5732 | else if (outrel.r_offset == (bfd_vma) - 2) | |
| 5733 | { | |
| 5734 | skip = TRUE; | |
| 5735 | relocate = TRUE; | |
| 5736 | } | |
| 0c1ded8d RL |
5737 | else if (abs_symbol_p) |
| 5738 | { | |
| 5739 | /* Local absolute symbol. */ | |
| 5740 | skip = (h->forced_local || (h->dynindx == -1)); | |
| 5741 | relocate = skip; | |
| 5742 | } | |
| a06ea964 NC |
5743 | |
| 5744 | outrel.r_offset += (input_section->output_section->vma | |
| 5745 | + input_section->output_offset); | |
| 5746 | ||
| 5747 | if (skip) | |
| 5748 | memset (&outrel, 0, sizeof outrel); | |
| 5749 | else if (h != NULL | |
| 5750 | && h->dynindx != -1 | |
| 0e1862bb | 5751 | && (!bfd_link_pic (info) |
| 0c1ded8d | 5752 | || !(bfd_link_pie (info) || SYMBOLIC_BIND (info, h)) |
| 0e1862bb | 5753 | || !h->def_regular)) |
| cec5225b | 5754 | outrel.r_info = ELFNN_R_INFO (h->dynindx, r_type); |
| a06ea964 NC |
5755 | else |
| 5756 | { | |
| 5757 | int symbol; | |
| 5758 | ||
| 5759 | /* On SVR4-ish systems, the dynamic loader cannot | |
| 5760 | relocate the text and data segments independently, | |
| 5761 | so the symbol does not matter. */ | |
| 5762 | symbol = 0; | |
| 1f56df9d | 5763 | relocate = globals->no_apply_dynamic_relocs ? FALSE : TRUE; |
| a6bb11b2 | 5764 | outrel.r_info = ELFNN_R_INFO (symbol, AARCH64_R (RELATIVE)); |
| a06ea964 NC |
5765 | outrel.r_addend += value; |
| 5766 | } | |
| 5767 | ||
| 1419bbe5 WN |
5768 | sreloc = elf_section_data (input_section)->sreloc; |
| 5769 | if (sreloc == NULL || sreloc->contents == NULL) | |
| 5770 | return bfd_reloc_notsupported; | |
| 5771 | ||
| 5772 | loc = sreloc->contents + sreloc->reloc_count++ * RELOC_SIZE (globals); | |
| cec5225b | 5773 | bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc); |
| a06ea964 | 5774 | |
| 1419bbe5 | 5775 | if (sreloc->reloc_count * RELOC_SIZE (globals) > sreloc->size) |
| a06ea964 NC |
5776 | { |
| 5777 | /* Sanity to check that we have previously allocated | |
| 5778 | sufficient space in the relocation section for the | |
| 5779 | number of relocations we actually want to emit. */ | |
| 5780 | abort (); | |
| 5781 | } | |
| 5782 | ||
| 5783 | /* If this reloc is against an external symbol, we do not want to | |
| 5784 | fiddle with the addend. Otherwise, we need to include the symbol | |
| 5785 | value so that it becomes an addend for the dynamic reloc. */ | |
| 5786 | if (!relocate) | |
| 5787 | return bfd_reloc_ok; | |
| 5788 | ||
| 5789 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
| 5790 | contents, rel->r_offset, value, | |
| 5791 | signed_addend); | |
| 5792 | } | |
| 5793 | else | |
| 5794 | value += signed_addend; | |
| 5795 | break; | |
| 5796 | ||
| a6bb11b2 | 5797 | case BFD_RELOC_AARCH64_CALL26: |
| ce336788 | 5798 | case BFD_RELOC_AARCH64_JUMP26: |
| a06ea964 NC |
5799 | { |
| 5800 | asection *splt = globals->root.splt; | |
| 5801 | bfd_boolean via_plt_p = | |
| 5802 | splt != NULL && h != NULL && h->plt.offset != (bfd_vma) - 1; | |
| 5803 | ||
| 5804 | /* A call to an undefined weak symbol is converted to a jump to | |
| 5805 | the next instruction unless a PLT entry will be created. | |
| 5806 | The jump to the next instruction is optimized as a NOP. | |
| 5807 | Do the same for local undefined symbols. */ | |
| 5808 | if (weak_undef_p && ! via_plt_p) | |
| 5809 | { | |
| 5810 | bfd_putl32 (INSN_NOP, hit_data); | |
| 5811 | return bfd_reloc_ok; | |
| 5812 | } | |
| 5813 | ||
| 5814 | /* If the call goes through a PLT entry, make sure to | |
| 5815 | check distance to the right destination address. */ | |
| 5816 | if (via_plt_p) | |
| 07f9ddfe JW |
5817 | value = (splt->output_section->vma |
| 5818 | + splt->output_offset + h->plt.offset); | |
| 5819 | ||
| 5820 | /* Check if a stub has to be inserted because the destination | |
| 5821 | is too far away. */ | |
| 5822 | struct elf_aarch64_stub_hash_entry *stub_entry = NULL; | |
| 2f340668 JW |
5823 | |
| 5824 | /* If the branch destination is directed to plt stub, "value" will be | |
| 5825 | the final destination, otherwise we should plus signed_addend, it may | |
| 5826 | contain non-zero value, for example call to local function symbol | |
| 5827 | which are turned into "sec_sym + sec_off", and sec_off is kept in | |
| 5828 | signed_addend. */ | |
| 5829 | if (! aarch64_valid_branch_p (via_plt_p ? value : value + signed_addend, | |
| 5830 | place)) | |
| 07f9ddfe JW |
5831 | /* The target is out of reach, so redirect the branch to |
| 5832 | the local stub for this function. */ | |
| 5833 | stub_entry = elfNN_aarch64_get_stub_entry (input_section, sym_sec, h, | |
| 5834 | rel, globals); | |
| 5835 | if (stub_entry != NULL) | |
| 2f340668 JW |
5836 | { |
| 5837 | value = (stub_entry->stub_offset | |
| 5838 | + stub_entry->stub_sec->output_offset | |
| 5839 | + stub_entry->stub_sec->output_section->vma); | |
| 5840 | ||
| 5841 | /* We have redirected the destination to stub entry address, | |
| 5842 | so ignore any addend record in the original rela entry. */ | |
| 5843 | signed_addend = 0; | |
| 5844 | } | |
| a06ea964 | 5845 | } |
| 652afeef TC |
5846 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5847 | place, value, | |
| caed7120 | 5848 | signed_addend, weak_undef_p); |
| 07f9ddfe | 5849 | *unresolved_reloc_p = FALSE; |
| a06ea964 NC |
5850 | break; |
| 5851 | ||
| dcbd20eb JW |
5852 | case BFD_RELOC_AARCH64_16_PCREL: |
| 5853 | case BFD_RELOC_AARCH64_32_PCREL: | |
| 5854 | case BFD_RELOC_AARCH64_64_PCREL: | |
| ce336788 JW |
5855 | case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL: |
| 5856 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: | |
| 5857 | case BFD_RELOC_AARCH64_ADR_LO21_PCREL: | |
| 5858 | case BFD_RELOC_AARCH64_LD_LO19_PCREL: | |
| 1daf502a RL |
5859 | case BFD_RELOC_AARCH64_MOVW_PREL_G0: |
| 5860 | case BFD_RELOC_AARCH64_MOVW_PREL_G0_NC: | |
| 5861 | case BFD_RELOC_AARCH64_MOVW_PREL_G1: | |
| 5862 | case BFD_RELOC_AARCH64_MOVW_PREL_G1_NC: | |
| 5863 | case BFD_RELOC_AARCH64_MOVW_PREL_G2: | |
| 5864 | case BFD_RELOC_AARCH64_MOVW_PREL_G2_NC: | |
| 5865 | case BFD_RELOC_AARCH64_MOVW_PREL_G3: | |
| 0e1862bb | 5866 | if (bfd_link_pic (info) |
| dcbd20eb JW |
5867 | && (input_section->flags & SEC_ALLOC) != 0 |
| 5868 | && (input_section->flags & SEC_READONLY) != 0 | |
| d68f1976 | 5869 | && !SYMBOL_REFERENCES_LOCAL (info, h)) |
| dcbd20eb JW |
5870 | { |
| 5871 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 5872 | ||
| 4eca0228 | 5873 | _bfd_error_handler |
| 695344c0 | 5874 | /* xgettext:c-format */ |
| 871b3ab2 | 5875 | (_("%pB: relocation %s against symbol `%s' which may bind " |
| d68f1976 JW |
5876 | "externally can not be used when making a shared object; " |
| 5877 | "recompile with -fPIC"), | |
| dcbd20eb JW |
5878 | input_bfd, elfNN_aarch64_howto_table[howto_index].name, |
| 5879 | h->root.root.string); | |
| 5880 | bfd_set_error (bfd_error_bad_value); | |
| 1d75a8e2 | 5881 | return bfd_reloc_notsupported; |
| dcbd20eb | 5882 | } |
| 1a0670f3 | 5883 | /* Fall through. */ |
| dcbd20eb | 5884 | |
| a6bb11b2 | 5885 | case BFD_RELOC_AARCH64_16: |
| 92d77487 RL |
5886 | #if ARCH_SIZE == 64 |
| 5887 | case BFD_RELOC_AARCH64_32: | |
| 5888 | #endif | |
| a6bb11b2 | 5889 | case BFD_RELOC_AARCH64_ADD_LO12: |
| a6bb11b2 | 5890 | case BFD_RELOC_AARCH64_BRANCH19: |
| ce336788 | 5891 | case BFD_RELOC_AARCH64_LDST128_LO12: |
| a6bb11b2 YZ |
5892 | case BFD_RELOC_AARCH64_LDST16_LO12: |
| 5893 | case BFD_RELOC_AARCH64_LDST32_LO12: | |
| 5894 | case BFD_RELOC_AARCH64_LDST64_LO12: | |
| ce336788 | 5895 | case BFD_RELOC_AARCH64_LDST8_LO12: |
| a6bb11b2 YZ |
5896 | case BFD_RELOC_AARCH64_MOVW_G0: |
| 5897 | case BFD_RELOC_AARCH64_MOVW_G0_NC: | |
| ce336788 | 5898 | case BFD_RELOC_AARCH64_MOVW_G0_S: |
| a6bb11b2 YZ |
5899 | case BFD_RELOC_AARCH64_MOVW_G1: |
| 5900 | case BFD_RELOC_AARCH64_MOVW_G1_NC: | |
| ce336788 | 5901 | case BFD_RELOC_AARCH64_MOVW_G1_S: |
| a6bb11b2 YZ |
5902 | case BFD_RELOC_AARCH64_MOVW_G2: |
| 5903 | case BFD_RELOC_AARCH64_MOVW_G2_NC: | |
| ce336788 | 5904 | case BFD_RELOC_AARCH64_MOVW_G2_S: |
| a6bb11b2 | 5905 | case BFD_RELOC_AARCH64_MOVW_G3: |
| a6bb11b2 | 5906 | case BFD_RELOC_AARCH64_TSTBR14: |
| 652afeef TC |
5907 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5908 | place, value, | |
| caed7120 | 5909 | signed_addend, weak_undef_p); |
| a06ea964 NC |
5910 | break; |
| 5911 | ||
| a6bb11b2 YZ |
5912 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 5913 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: | |
| 7018c030 | 5914 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| ce336788 | 5915 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| 99ad26cb | 5916 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| ce336788 | 5917 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| 2aff25ba JW |
5918 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 5919 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: | |
| 5920 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: | |
| a06ea964 NC |
5921 | if (globals->root.sgot == NULL) |
| 5922 | BFD_ASSERT (h != NULL); | |
| 5923 | ||
| ff07562f | 5924 | relative_reloc = FALSE; |
| a06ea964 NC |
5925 | if (h != NULL) |
| 5926 | { | |
| 99ad26cb | 5927 | bfd_vma addend = 0; |
| ff07562f JW |
5928 | |
| 5929 | /* If a symbol is not dynamic and is not undefined weak, bind it | |
| 5930 | locally and generate a RELATIVE relocation under PIC mode. | |
| 5931 | ||
| 5932 | NOTE: one symbol may be referenced by several relocations, we | |
| 5933 | should only generate one RELATIVE relocation for that symbol. | |
| 5934 | Therefore, check GOT offset mark first. */ | |
| 5935 | if (h->dynindx == -1 | |
| 5936 | && !h->forced_local | |
| 5937 | && h->root.type != bfd_link_hash_undefweak | |
| 5938 | && bfd_link_pic (info) | |
| 5939 | && !symbol_got_offset_mark_p (input_bfd, h, r_symndx)) | |
| 5940 | relative_reloc = TRUE; | |
| 5941 | ||
| a06ea964 NC |
5942 | value = aarch64_calculate_got_entry_vma (h, globals, info, value, |
| 5943 | output_bfd, | |
| 5944 | unresolved_reloc_p); | |
| ff07562f JW |
5945 | /* Record the GOT entry address which will be used when generating |
| 5946 | RELATIVE relocation. */ | |
| 5947 | if (relative_reloc) | |
| 5948 | got_entry_addr = value; | |
| 5949 | ||
| 2aff25ba | 5950 | if (aarch64_relocation_aginst_gp_p (bfd_r_type)) |
| 99ad26cb JW |
5951 | addend = (globals->root.sgot->output_section->vma |
| 5952 | + globals->root.sgot->output_offset); | |
| 652afeef TC |
5953 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 5954 | place, value, | |
| 99ad26cb | 5955 | addend, weak_undef_p); |
| a06ea964 | 5956 | } |
| b53b1bed JW |
5957 | else |
| 5958 | { | |
| 99ad26cb | 5959 | bfd_vma addend = 0; |
| b53b1bed JW |
5960 | struct elf_aarch64_local_symbol *locals |
| 5961 | = elf_aarch64_locals (input_bfd); | |
| 5962 | ||
| 5963 | if (locals == NULL) | |
| 5964 | { | |
| 5965 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 4eca0228 | 5966 | _bfd_error_handler |
| 695344c0 | 5967 | /* xgettext:c-format */ |
| 90b6238f | 5968 | (_("%pB: local symbol descriptor table be NULL when applying " |
| b53b1bed JW |
5969 | "relocation %s against local symbol"), |
| 5970 | input_bfd, elfNN_aarch64_howto_table[howto_index].name); | |
| 5971 | abort (); | |
| 5972 | } | |
| 5973 | ||
| 5974 | off = symbol_got_offset (input_bfd, h, r_symndx); | |
| 5975 | base_got = globals->root.sgot; | |
| ff07562f JW |
5976 | got_entry_addr = (base_got->output_section->vma |
| 5977 | + base_got->output_offset + off); | |
| b53b1bed JW |
5978 | |
| 5979 | if (!symbol_got_offset_mark_p (input_bfd, h, r_symndx)) | |
| 5980 | { | |
| 5981 | bfd_put_64 (output_bfd, value, base_got->contents + off); | |
| 5982 | ||
| ff07562f JW |
5983 | /* For local symbol, we have done absolute relocation in static |
| 5984 | linking stage. While for shared library, we need to update the | |
| 5985 | content of GOT entry according to the shared object's runtime | |
| 5986 | base address. So, we need to generate a R_AARCH64_RELATIVE reloc | |
| 5987 | for dynamic linker. */ | |
| 0e1862bb | 5988 | if (bfd_link_pic (info)) |
| ff07562f | 5989 | relative_reloc = TRUE; |
| b53b1bed JW |
5990 | |
| 5991 | symbol_got_offset_mark (input_bfd, h, r_symndx); | |
| 5992 | } | |
| 5993 | ||
| 5994 | /* Update the relocation value to GOT entry addr as we have transformed | |
| 5995 | the direct data access into indirect data access through GOT. */ | |
| 5996 | value = got_entry_addr; | |
| 99ad26cb | 5997 | |
| 2aff25ba | 5998 | if (aarch64_relocation_aginst_gp_p (bfd_r_type)) |
| 99ad26cb JW |
5999 | addend = base_got->output_section->vma + base_got->output_offset; |
| 6000 | ||
| 652afeef TC |
6001 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6002 | place, value, | |
| 99ad26cb | 6003 | addend, weak_undef_p); |
| b53b1bed | 6004 | } |
| ff07562f JW |
6005 | |
| 6006 | if (relative_reloc) | |
| 6007 | { | |
| 6008 | asection *s; | |
| 6009 | Elf_Internal_Rela outrel; | |
| 6010 | ||
| 6011 | s = globals->root.srelgot; | |
| 6012 | if (s == NULL) | |
| 6013 | abort (); | |
| 6014 | ||
| 6015 | outrel.r_offset = got_entry_addr; | |
| 6016 | outrel.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE)); | |
| 6017 | outrel.r_addend = orig_value; | |
| 6018 | elf_append_rela (output_bfd, s, &outrel); | |
| 6019 | } | |
| a2e1db00 RL |
6020 | break; |
| 6021 | ||
| ce336788 | 6022 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a6bb11b2 | 6023 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 6024 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| a6bb11b2 | 6025 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a6bb11b2 | 6026 | case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: |
| ce336788 | 6027 | case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: |
| 043bf05a | 6028 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 73f925cc | 6029 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 6030 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 6031 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
6032 | if (globals->root.sgot == NULL) |
| 6033 | return bfd_reloc_notsupported; | |
| 6034 | ||
| 6035 | value = (symbol_got_offset (input_bfd, h, r_symndx) | |
| 6036 | + globals->root.sgot->output_section->vma | |
| f44a1f8e | 6037 | + globals->root.sgot->output_offset); |
| a06ea964 | 6038 | |
| 652afeef TC |
6039 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6040 | place, value, | |
| caed7120 | 6041 | 0, weak_undef_p); |
| a06ea964 NC |
6042 | *unresolved_reloc_p = FALSE; |
| 6043 | break; | |
| 6044 | ||
| 7ba7cfe4 | 6045 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 6046 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| 3b957e5b RL |
6047 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 6048 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| 94facae3 RL |
6049 | if (globals->root.sgot == NULL) |
| 6050 | return bfd_reloc_notsupported; | |
| 6051 | ||
| 6052 | value = symbol_got_offset (input_bfd, h, r_symndx); | |
| 652afeef TC |
6053 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6054 | place, value, | |
| 94facae3 RL |
6055 | 0, weak_undef_p); |
| 6056 | *unresolved_reloc_p = FALSE; | |
| 6057 | break; | |
| 6058 | ||
| 6ffe9a1b | 6059 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12: |
| 40fbed84 | 6060 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12: |
| 753999c1 | 6061 | case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC: |
| 07c9aa07 JW |
6062 | case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12: |
| 6063 | case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC: | |
| 6064 | case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12: | |
| 6065 | case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC: | |
| 6066 | case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12: | |
| 6067 | case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC: | |
| 6068 | case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12: | |
| 6069 | case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC: | |
| 6ffe9a1b JW |
6070 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0: |
| 6071 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: | |
| 6072 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1: | |
| 6073 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC: | |
| 6074 | case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2: | |
| 652afeef TC |
6075 | { |
| 6076 | if (!(weak_undef_p || elf_hash_table (info)->tls_sec)) | |
| 6077 | { | |
| 6078 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 6079 | _bfd_error_handler | |
| 6080 | /* xgettext:c-format */ | |
| 6081 | (_("%pB: TLS relocation %s against undefined symbol `%s'"), | |
| 6082 | input_bfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 6083 | h->root.root.string); | |
| 6084 | bfd_set_error (bfd_error_bad_value); | |
| 6085 | return bfd_reloc_notsupported; | |
| 6086 | } | |
| 6087 | ||
| 6088 | bfd_vma def_value | |
| 6089 | = weak_undef_p ? 0 : signed_addend - dtpoff_base (info); | |
| 6090 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, | |
| 6091 | place, value, | |
| 6092 | def_value, weak_undef_p); | |
| 6093 | break; | |
| 6094 | } | |
| 40fbed84 | 6095 | |
| a6bb11b2 YZ |
6096 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12: |
| 6097 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12: | |
| 6098 | case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC: | |
| e04ef022 RL |
6099 | case BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12: |
| 6100 | case BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12_NC: | |
| 6101 | case BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12: | |
| 6102 | case BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12_NC: | |
| 6103 | case BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12: | |
| 6104 | case BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12_NC: | |
| 6105 | case BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12: | |
| 6106 | case BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12_NC: | |
| a6bb11b2 YZ |
6107 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0: |
| 6108 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC: | |
| 6109 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1: | |
| 6110 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC: | |
| 6111 | case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2: | |
| 652afeef TC |
6112 | { |
| 6113 | if (!(weak_undef_p || elf_hash_table (info)->tls_sec)) | |
| 6114 | { | |
| 6115 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 6116 | _bfd_error_handler | |
| 6117 | /* xgettext:c-format */ | |
| 6118 | (_("%pB: TLS relocation %s against undefined symbol `%s'"), | |
| 6119 | input_bfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 6120 | h->root.root.string); | |
| 6121 | bfd_set_error (bfd_error_bad_value); | |
| 6122 | return bfd_reloc_notsupported; | |
| 6123 | } | |
| 6124 | ||
| 6125 | bfd_vma def_value | |
| 6126 | = weak_undef_p ? 0 : signed_addend - tpoff_base (info); | |
| 6127 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, | |
| 6128 | place, value, | |
| 6129 | def_value, weak_undef_p); | |
| 6130 | *unresolved_reloc_p = FALSE; | |
| 6131 | break; | |
| 6132 | } | |
| a06ea964 | 6133 | |
| f955cccf | 6134 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 6135 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 6136 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| a6bb11b2 | 6137 | case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC: |
| f955cccf | 6138 | case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12: |
| 1ada945d | 6139 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| a06ea964 NC |
6140 | if (globals->root.sgot == NULL) |
| 6141 | return bfd_reloc_notsupported; | |
| a06ea964 NC |
6142 | value = (symbol_tlsdesc_got_offset (input_bfd, h, r_symndx) |
| 6143 | + globals->root.sgotplt->output_section->vma | |
| f44a1f8e | 6144 | + globals->root.sgotplt->output_offset |
| a06ea964 NC |
6145 | + globals->sgotplt_jump_table_size); |
| 6146 | ||
| 652afeef TC |
6147 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6148 | place, value, | |
| caed7120 | 6149 | 0, weak_undef_p); |
| a06ea964 NC |
6150 | *unresolved_reloc_p = FALSE; |
| 6151 | break; | |
| 6152 | ||
| 0484b454 RL |
6153 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
| 6154 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| 6155 | if (globals->root.sgot == NULL) | |
| 6156 | return bfd_reloc_notsupported; | |
| 6157 | ||
| 6158 | value = (symbol_tlsdesc_got_offset (input_bfd, h, r_symndx) | |
| 6159 | + globals->root.sgotplt->output_section->vma | |
| 6160 | + globals->root.sgotplt->output_offset | |
| 6161 | + globals->sgotplt_jump_table_size); | |
| 6162 | ||
| 6163 | value -= (globals->root.sgot->output_section->vma | |
| 6164 | + globals->root.sgot->output_offset); | |
| 6165 | ||
| 652afeef TC |
6166 | value = _bfd_aarch64_elf_resolve_relocation (input_bfd, bfd_r_type, |
| 6167 | place, value, | |
| 0484b454 RL |
6168 | 0, weak_undef_p); |
| 6169 | *unresolved_reloc_p = FALSE; | |
| 6170 | break; | |
| 6171 | ||
| a06ea964 NC |
6172 | default: |
| 6173 | return bfd_reloc_notsupported; | |
| 6174 | } | |
| 6175 | ||
| 6176 | if (saved_addend) | |
| 6177 | *saved_addend = value; | |
| 6178 | ||
| 6179 | /* Only apply the final relocation in a sequence. */ | |
| 6180 | if (save_addend) | |
| 6181 | return bfd_reloc_continue; | |
| 6182 | ||
| caed7120 YZ |
6183 | return _bfd_aarch64_elf_put_addend (input_bfd, hit_data, bfd_r_type, |
| 6184 | howto, value); | |
| a06ea964 NC |
6185 | } |
| 6186 | ||
| 2d0ca824 YN |
6187 | /* LP64 and ILP32 operates on x- and w-registers respectively. |
| 6188 | Next definitions take into account the difference between | |
| 6189 | corresponding machine codes. R means x-register if the target | |
| 6190 | arch is LP64, and w-register if the target is ILP32. */ | |
| 6191 | ||
| 6192 | #if ARCH_SIZE == 64 | |
| 6193 | # define add_R0_R0 (0x91000000) | |
| 6194 | # define add_R0_R0_R1 (0x8b000020) | |
| 6195 | # define add_R0_R1 (0x91400020) | |
| 6196 | # define ldr_R0 (0x58000000) | |
| 6197 | # define ldr_R0_mask(i) (i & 0xffffffe0) | |
| 6198 | # define ldr_R0_x0 (0xf9400000) | |
| 6199 | # define ldr_hw_R0 (0xf2a00000) | |
| 6200 | # define movk_R0 (0xf2800000) | |
| 6201 | # define movz_R0 (0xd2a00000) | |
| 6202 | # define movz_hw_R0 (0xd2c00000) | |
| 6203 | #else /*ARCH_SIZE == 32 */ | |
| 6204 | # define add_R0_R0 (0x11000000) | |
| 6205 | # define add_R0_R0_R1 (0x0b000020) | |
| 6206 | # define add_R0_R1 (0x11400020) | |
| 6207 | # define ldr_R0 (0x18000000) | |
| 6208 | # define ldr_R0_mask(i) (i & 0xbfffffe0) | |
| 6209 | # define ldr_R0_x0 (0xb9400000) | |
| 6210 | # define ldr_hw_R0 (0x72a00000) | |
| 6211 | # define movk_R0 (0x72800000) | |
| 6212 | # define movz_R0 (0x52a00000) | |
| 6213 | # define movz_hw_R0 (0x52c00000) | |
| 6214 | #endif | |
| 6215 | ||
| 9fca35fc TC |
6216 | /* Structure to hold payload for _bfd_aarch64_erratum_843419_clear_stub, |
| 6217 | it is used to identify the stub information to reset. */ | |
| 6218 | ||
| 6219 | struct erratum_843419_branch_to_stub_clear_data | |
| 6220 | { | |
| 6221 | bfd_vma adrp_offset; | |
| 6222 | asection *output_section; | |
| 6223 | }; | |
| 6224 | ||
| 6225 | /* Clear the erratum information for GEN_ENTRY if the ADRP_OFFSET and | |
| 6226 | section inside IN_ARG matches. The clearing is done by setting the | |
| 6227 | stub_type to none. */ | |
| 6228 | ||
| 6229 | static bfd_boolean | |
| 6230 | _bfd_aarch64_erratum_843419_clear_stub (struct bfd_hash_entry *gen_entry, | |
| 6231 | void *in_arg) | |
| 6232 | { | |
| 6233 | struct elf_aarch64_stub_hash_entry *stub_entry | |
| 6234 | = (struct elf_aarch64_stub_hash_entry *) gen_entry; | |
| 6235 | struct erratum_843419_branch_to_stub_clear_data *data | |
| 6236 | = (struct erratum_843419_branch_to_stub_clear_data *) in_arg; | |
| 6237 | ||
| 6238 | if (stub_entry->target_section != data->output_section | |
| 6239 | || stub_entry->stub_type != aarch64_stub_erratum_843419_veneer | |
| 6240 | || stub_entry->adrp_offset != data->adrp_offset) | |
| 6241 | return TRUE; | |
| 6242 | ||
| 6243 | /* Change the stub type instead of removing the entry, removing from the hash | |
| 6244 | table would be slower and we have already reserved the memory for the entry | |
| 6245 | so there wouldn't be much gain. Changing the stub also keeps around a | |
| 6246 | record of what was there before. */ | |
| 6247 | stub_entry->stub_type = aarch64_stub_none; | |
| 6248 | ||
| 6249 | /* We're done and there could have been only one matching stub at that | |
| 6250 | particular offset, so abort further traversal. */ | |
| 6251 | return FALSE; | |
| 6252 | } | |
| 6253 | ||
| 6254 | /* TLS Relaxations may relax an adrp sequence that matches the erratum 843419 | |
| 6255 | sequence. In this case the erratum no longer applies and we need to remove | |
| 6256 | the entry from the pending stub generation. This clears matching adrp insn | |
| 6257 | at ADRP_OFFSET in INPUT_SECTION in the stub table defined in GLOBALS. */ | |
| 6258 | ||
| 6259 | static void | |
| 6260 | clear_erratum_843419_entry (struct elf_aarch64_link_hash_table *globals, | |
| 6261 | bfd_vma adrp_offset, asection *input_section) | |
| 6262 | { | |
| 739b5c9c | 6263 | if (globals->fix_erratum_843419 & ERRAT_ADRP) |
| 9fca35fc TC |
6264 | { |
| 6265 | struct erratum_843419_branch_to_stub_clear_data data; | |
| 6266 | data.adrp_offset = adrp_offset; | |
| 6267 | data.output_section = input_section; | |
| 6268 | ||
| 6269 | bfd_hash_traverse (&globals->stub_hash_table, | |
| 6270 | _bfd_aarch64_erratum_843419_clear_stub, &data); | |
| 6271 | } | |
| 6272 | } | |
| 6273 | ||
| a06ea964 NC |
6274 | /* Handle TLS relaxations. Relaxing is possible for symbols that use |
| 6275 | R_AARCH64_TLSDESC_ADR_{PAGE, LD64_LO12_NC, ADD_LO12_NC} during a static | |
| 6276 | link. | |
| 6277 | ||
| 6278 | Return bfd_reloc_ok if we're done, bfd_reloc_continue if the caller | |
| 6279 | is to then call final_link_relocate. Return other values in the | |
| 6280 | case of error. */ | |
| 6281 | ||
| 6282 | static bfd_reloc_status_type | |
| cec5225b | 6283 | elfNN_aarch64_tls_relax (struct elf_aarch64_link_hash_table *globals, |
| 9fca35fc TC |
6284 | bfd *input_bfd, asection *input_section, |
| 6285 | bfd_byte *contents, Elf_Internal_Rela *rel, | |
| 6286 | struct elf_link_hash_entry *h) | |
| a06ea964 NC |
6287 | { |
| 6288 | bfd_boolean is_local = h == NULL; | |
| cec5225b | 6289 | unsigned int r_type = ELFNN_R_TYPE (rel->r_info); |
| a06ea964 NC |
6290 | unsigned long insn; |
| 6291 | ||
| 6292 | BFD_ASSERT (globals && input_bfd && contents && rel); | |
| 6293 | ||
| 0aa13fee | 6294 | switch (elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type)) |
| a06ea964 | 6295 | { |
| a6bb11b2 | 6296 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| ce336788 | 6297 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| a06ea964 NC |
6298 | if (is_local) |
| 6299 | { | |
| 6300 | /* GD->LE relaxation: | |
| 2d0ca824 | 6301 | adrp x0, :tlsgd:var => movz R0, :tprel_g1:var |
| a06ea964 | 6302 | or |
| 2d0ca824 YN |
6303 | adrp x0, :tlsdesc:var => movz R0, :tprel_g1:var |
| 6304 | ||
| 6305 | Where R is x for LP64, and w for ILP32. */ | |
| 6306 | bfd_putl32 (movz_R0, contents + rel->r_offset); | |
| 9fca35fc TC |
6307 | /* We have relaxed the adrp into a mov, we may have to clear any |
| 6308 | pending erratum fixes. */ | |
| 6309 | clear_erratum_843419_entry (globals, rel->r_offset, input_section); | |
| a06ea964 NC |
6310 | return bfd_reloc_continue; |
| 6311 | } | |
| 6312 | else | |
| 6313 | { | |
| 6314 | /* GD->IE relaxation: | |
| 6315 | adrp x0, :tlsgd:var => adrp x0, :gottprel:var | |
| 6316 | or | |
| 6317 | adrp x0, :tlsdesc:var => adrp x0, :gottprel:var | |
| 6318 | */ | |
| a06ea964 NC |
6319 | return bfd_reloc_continue; |
| 6320 | } | |
| 6321 | ||
| 389b8029 MS |
6322 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| 6323 | BFD_ASSERT (0); | |
| 6324 | break; | |
| 6325 | ||
| 1ada945d MS |
6326 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 6327 | if (is_local) | |
| 6328 | { | |
| 6329 | /* Tiny TLSDESC->LE relaxation: | |
| 07d6d2b8 AM |
6330 | ldr x1, :tlsdesc:var => movz R0, #:tprel_g1:var |
| 6331 | adr x0, :tlsdesc:var => movk R0, #:tprel_g0_nc:var | |
| 1ada945d | 6332 | .tlsdesccall var |
| 07d6d2b8 | 6333 | blr x1 => nop |
| 2d0ca824 YN |
6334 | |
| 6335 | Where R is x for LP64, and w for ILP32. */ | |
| 1ada945d MS |
6336 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21)); |
| 6337 | BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (TLSDESC_CALL)); | |
| 6338 | ||
| 6339 | rel[1].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6340 | AARCH64_R (TLSLE_MOVW_TPREL_G0_NC)); | |
| 6341 | rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6342 | ||
| 2d0ca824 YN |
6343 | bfd_putl32 (movz_R0, contents + rel->r_offset); |
| 6344 | bfd_putl32 (movk_R0, contents + rel->r_offset + 4); | |
| 1ada945d MS |
6345 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 8); |
| 6346 | return bfd_reloc_continue; | |
| 6347 | } | |
| 6348 | else | |
| 6349 | { | |
| 6350 | /* Tiny TLSDESC->IE relaxation: | |
| 07d6d2b8 AM |
6351 | ldr x1, :tlsdesc:var => ldr x0, :gottprel:var |
| 6352 | adr x0, :tlsdesc:var => nop | |
| 1ada945d | 6353 | .tlsdesccall var |
| 07d6d2b8 | 6354 | blr x1 => nop |
| 1ada945d MS |
6355 | */ |
| 6356 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21)); | |
| 6357 | BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (TLSDESC_CALL)); | |
| 6358 | ||
| 6359 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6360 | rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6361 | ||
| 2d0ca824 | 6362 | bfd_putl32 (ldr_R0, contents + rel->r_offset); |
| 1ada945d MS |
6363 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 4); |
| 6364 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 8); | |
| 6365 | return bfd_reloc_continue; | |
| 6366 | } | |
| 6367 | ||
| 3c12b054 MS |
6368 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 6369 | if (is_local) | |
| 6370 | { | |
| 6371 | /* Tiny GD->LE relaxation: | |
| 07d6d2b8 AM |
6372 | adr x0, :tlsgd:var => mrs x1, tpidr_el0 |
| 6373 | bl __tls_get_addr => add R0, R1, #:tprel_hi12:x, lsl #12 | |
| 6374 | nop => add R0, R0, #:tprel_lo12_nc:x | |
| 2d0ca824 YN |
6375 | |
| 6376 | Where R is x for LP64, and x for Ilp32. */ | |
| 3c12b054 MS |
6377 | |
| 6378 | /* First kill the tls_get_addr reloc on the bl instruction. */ | |
| 6379 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6380 | ||
| 6381 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 0); | |
| 2d0ca824 YN |
6382 | bfd_putl32 (add_R0_R1, contents + rel->r_offset + 4); |
| 6383 | bfd_putl32 (add_R0_R0, contents + rel->r_offset + 8); | |
| 3c12b054 MS |
6384 | |
| 6385 | rel[1].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6386 | AARCH64_R (TLSLE_ADD_TPREL_LO12_NC)); | |
| 6387 | rel[1].r_offset = rel->r_offset + 8; | |
| 6388 | ||
| 6389 | /* Move the current relocation to the second instruction in | |
| 6390 | the sequence. */ | |
| 6391 | rel->r_offset += 4; | |
| 6392 | rel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6393 | AARCH64_R (TLSLE_ADD_TPREL_HI12)); | |
| 6394 | return bfd_reloc_continue; | |
| 6395 | } | |
| 6396 | else | |
| 6397 | { | |
| 6398 | /* Tiny GD->IE relaxation: | |
| 07d6d2b8 AM |
6399 | adr x0, :tlsgd:var => ldr R0, :gottprel:var |
| 6400 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6401 | nop => add R0, R0, R1 | |
| 2d0ca824 YN |
6402 | |
| 6403 | Where R is x for LP64, and w for Ilp32. */ | |
| 3c12b054 MS |
6404 | |
| 6405 | /* First kill the tls_get_addr reloc on the bl instruction. */ | |
| 6406 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6407 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6408 | ||
| 2d0ca824 | 6409 | bfd_putl32 (ldr_R0, contents + rel->r_offset); |
| 3c12b054 | 6410 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 4); |
| 2d0ca824 | 6411 | bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 8); |
| 3c12b054 MS |
6412 | return bfd_reloc_continue; |
| 6413 | } | |
| 6414 | ||
| ac734732 RL |
6415 | #if ARCH_SIZE == 64 |
| 6416 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: | |
| 6417 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSGD_MOVW_G0_NC)); | |
| 6418 | BFD_ASSERT (rel->r_offset + 12 == rel[2].r_offset); | |
| 6419 | BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (CALL26)); | |
| 6420 | ||
| 6421 | if (is_local) | |
| 6422 | { | |
| 6423 | /* Large GD->LE relaxation: | |
| 07d6d2b8 | 6424 | movz x0, #:tlsgd_g1:var => movz x0, #:tprel_g2:var, lsl #32 |
| ac734732 | 6425 | movk x0, #:tlsgd_g0_nc:var => movk x0, #:tprel_g1_nc:var, lsl #16 |
| 07d6d2b8 AM |
6426 | add x0, gp, x0 => movk x0, #:tprel_g0_nc:var |
| 6427 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6428 | nop => add x0, x0, x1 | |
| ac734732 RL |
6429 | */ |
| 6430 | rel[2].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info), | |
| 6431 | AARCH64_R (TLSLE_MOVW_TPREL_G0_NC)); | |
| 6432 | rel[2].r_offset = rel->r_offset + 8; | |
| 6433 | ||
| 2d0ca824 YN |
6434 | bfd_putl32 (movz_hw_R0, contents + rel->r_offset + 0); |
| 6435 | bfd_putl32 (ldr_hw_R0, contents + rel->r_offset + 4); | |
| 6436 | bfd_putl32 (movk_R0, contents + rel->r_offset + 8); | |
| ac734732 | 6437 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 12); |
| 2d0ca824 | 6438 | bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 16); |
| ac734732 RL |
6439 | } |
| 6440 | else | |
| 6441 | { | |
| 6442 | /* Large GD->IE relaxation: | |
| 07d6d2b8 | 6443 | movz x0, #:tlsgd_g1:var => movz x0, #:gottprel_g1:var, lsl #16 |
| ac734732 | 6444 | movk x0, #:tlsgd_g0_nc:var => movk x0, #:gottprel_g0_nc:var |
| 07d6d2b8 AM |
6445 | add x0, gp, x0 => ldr x0, [gp, x0] |
| 6446 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6447 | nop => add x0, x0, x1 | |
| ac734732 RL |
6448 | */ |
| 6449 | rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6450 | bfd_putl32 (0xd2a80000, contents + rel->r_offset + 0); | |
| 2d0ca824 | 6451 | bfd_putl32 (ldr_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 | return bfd_reloc_continue; | |
| 6456 | ||
| 6457 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: | |
| 6458 | return bfd_reloc_continue; | |
| 6459 | #endif | |
| 6460 | ||
| 043bf05a MS |
6461 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 6462 | return bfd_reloc_continue; | |
| 6463 | ||
| a6bb11b2 | 6464 | case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC: |
| a06ea964 NC |
6465 | if (is_local) |
| 6466 | { | |
| 6467 | /* GD->LE relaxation: | |
| 6468 | ldr xd, [x0, #:tlsdesc_lo12:var] => movk x0, :tprel_g0_nc:var | |
| 2d0ca824 YN |
6469 | |
| 6470 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 6471 | bfd_putl32 (movk_R0, contents + rel->r_offset); | |
| a06ea964 NC |
6472 | return bfd_reloc_continue; |
| 6473 | } | |
| 6474 | else | |
| 6475 | { | |
| 6476 | /* GD->IE relaxation: | |
| 2d0ca824 YN |
6477 | ldr xd, [x0, #:tlsdesc_lo12:var] => ldr R0, [x0, #:gottprel_lo12:var] |
| 6478 | ||
| 6479 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| a06ea964 | 6480 | insn = bfd_getl32 (contents + rel->r_offset); |
| 2d0ca824 | 6481 | bfd_putl32 (ldr_R0_mask (insn), contents + rel->r_offset); |
| a06ea964 NC |
6482 | return bfd_reloc_continue; |
| 6483 | } | |
| 6484 | ||
| a6bb11b2 | 6485 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a06ea964 NC |
6486 | if (is_local) |
| 6487 | { | |
| 6488 | /* GD->LE relaxation | |
| 07d6d2b8 AM |
6489 | add x0, #:tlsgd_lo12:var => movk R0, :tprel_g0_nc:var |
| 6490 | bl __tls_get_addr => mrs x1, tpidr_el0 | |
| 6491 | nop => add R0, R1, R0 | |
| 2d0ca824 YN |
6492 | |
| 6493 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| a06ea964 NC |
6494 | |
| 6495 | /* First kill the tls_get_addr reloc on the bl instruction. */ | |
| 6496 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| cec5225b | 6497 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); |
| a06ea964 | 6498 | |
| 2d0ca824 | 6499 | bfd_putl32 (movk_R0, contents + rel->r_offset); |
| a06ea964 | 6500 | bfd_putl32 (0xd53bd041, contents + rel->r_offset + 4); |
| 2d0ca824 | 6501 | bfd_putl32 (add_R0_R0_R1, contents + rel->r_offset + 8); |
| a06ea964 NC |
6502 | return bfd_reloc_continue; |
| 6503 | } | |
| 6504 | else | |
| 6505 | { | |
| 6506 | /* GD->IE relaxation | |
| 07d6d2b8 AM |
6507 | ADD x0, #:tlsgd_lo12:var => ldr R0, [x0, #:gottprel_lo12:var] |
| 6508 | BL __tls_get_addr => mrs x1, tpidr_el0 | |
| a06ea964 | 6509 | R_AARCH64_CALL26 |
| 07d6d2b8 | 6510 | NOP => add R0, R1, R0 |
| 5cd1d8bc YN |
6511 | |
| 6512 | Where R is x for lp64 mode, and w for ilp32 mode. */ | |
| a06ea964 | 6513 | |
| a6bb11b2 | 6514 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26)); |
| a06ea964 NC |
6515 | |
| 6516 | /* Remove the relocation on the BL instruction. */ | |
| cec5225b | 6517 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); |
| a06ea964 | 6518 | |
| a06ea964 NC |
6519 | /* We choose to fixup the BL and NOP instructions using the |
| 6520 | offset from the second relocation to allow flexibility in | |
| 6521 | scheduling instructions between the ADD and BL. */ | |
| 2d0ca824 | 6522 | bfd_putl32 (ldr_R0_x0, contents + rel->r_offset); |
| 5cd1d8bc | 6523 | bfd_putl32 (0xd53bd041, contents + rel[1].r_offset); |
| 2d0ca824 | 6524 | bfd_putl32 (add_R0_R0_R1, contents + rel[1].r_offset + 4); |
| a06ea964 NC |
6525 | return bfd_reloc_continue; |
| 6526 | } | |
| 6527 | ||
| 0484b454 | 6528 | case BFD_RELOC_AARCH64_TLSDESC_ADD: |
| f955cccf | 6529 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 6530 | case BFD_RELOC_AARCH64_TLSDESC_CALL: |
| a06ea964 | 6531 | /* GD->IE/LE relaxation: |
| 07d6d2b8 AM |
6532 | add x0, x0, #:tlsdesc_lo12:var => nop |
| 6533 | blr xd => nop | |
| a06ea964 NC |
6534 | */ |
| 6535 | bfd_putl32 (INSN_NOP, contents + rel->r_offset); | |
| 6536 | return bfd_reloc_ok; | |
| 6537 | ||
| 0484b454 RL |
6538 | case BFD_RELOC_AARCH64_TLSDESC_LDR: |
| 6539 | if (is_local) | |
| 6540 | { | |
| 6541 | /* GD->LE relaxation: | |
| 2d0ca824 YN |
6542 | ldr xd, [gp, xn] => movk R0, #:tprel_g0_nc:var |
| 6543 | ||
| 6544 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 6545 | bfd_putl32 (movk_R0, contents + rel->r_offset); | |
| 0484b454 RL |
6546 | return bfd_reloc_continue; |
| 6547 | } | |
| 6548 | else | |
| 6549 | { | |
| 6550 | /* GD->IE relaxation: | |
| 2d0ca824 YN |
6551 | ldr xd, [gp, xn] => ldr R0, [gp, xn] |
| 6552 | ||
| 6553 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 0484b454 | 6554 | insn = bfd_getl32 (contents + rel->r_offset); |
| 2d0ca824 | 6555 | bfd_putl32 (ldr_R0_mask (insn), contents + rel->r_offset); |
| 0484b454 RL |
6556 | return bfd_reloc_ok; |
| 6557 | } | |
| 6558 | ||
| 6559 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: | |
| 6560 | /* GD->LE relaxation: | |
| 2d0ca824 | 6561 | movk xd, #:tlsdesc_off_g0_nc:var => movk R0, #:tprel_g1_nc:var, lsl #16 |
| 0484b454 | 6562 | GD->IE relaxation: |
| 2d0ca824 YN |
6563 | movk xd, #:tlsdesc_off_g0_nc:var => movk Rd, #:gottprel_g0_nc:var |
| 6564 | ||
| 6565 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 0484b454 | 6566 | if (is_local) |
| 2d0ca824 | 6567 | bfd_putl32 (ldr_hw_R0, contents + rel->r_offset); |
| 0484b454 RL |
6568 | return bfd_reloc_continue; |
| 6569 | ||
| 6570 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| 6571 | if (is_local) | |
| 6572 | { | |
| 6573 | /* GD->LE relaxation: | |
| 2d0ca824 YN |
6574 | movz xd, #:tlsdesc_off_g1:var => movz R0, #:tprel_g2:var, lsl #32 |
| 6575 | ||
| 6576 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 6577 | bfd_putl32 (movz_hw_R0, contents + rel->r_offset); | |
| 0484b454 RL |
6578 | return bfd_reloc_continue; |
| 6579 | } | |
| 6580 | else | |
| 6581 | { | |
| 6582 | /* GD->IE relaxation: | |
| 2d0ca824 YN |
6583 | movz xd, #:tlsdesc_off_g1:var => movz Rd, #:gottprel_g1:var, lsl #16 |
| 6584 | ||
| 6585 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| 0484b454 | 6586 | insn = bfd_getl32 (contents + rel->r_offset); |
| 2d0ca824 | 6587 | bfd_putl32 (movz_R0 | (insn & 0x1f), contents + rel->r_offset); |
| 0484b454 RL |
6588 | return bfd_reloc_continue; |
| 6589 | } | |
| 6590 | ||
| a6bb11b2 | 6591 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a06ea964 | 6592 | /* IE->LE relaxation: |
| 07d6d2b8 | 6593 | adrp xd, :gottprel:var => movz Rd, :tprel_g1:var |
| 2d0ca824 YN |
6594 | |
| 6595 | Where R is x for lp64 mode, and w for ILP32 mode. */ | |
| a06ea964 NC |
6596 | if (is_local) |
| 6597 | { | |
| 6598 | insn = bfd_getl32 (contents + rel->r_offset); | |
| 2d0ca824 | 6599 | bfd_putl32 (movz_R0 | (insn & 0x1f), contents + rel->r_offset); |
| 9fca35fc TC |
6600 | /* We have relaxed the adrp into a mov, we may have to clear any |
| 6601 | pending erratum fixes. */ | |
| 6602 | clear_erratum_843419_entry (globals, rel->r_offset, input_section); | |
| a06ea964 NC |
6603 | } |
| 6604 | return bfd_reloc_continue; | |
| 6605 | ||
| a6bb11b2 | 6606 | case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC: |
| a06ea964 | 6607 | /* IE->LE relaxation: |
| 07d6d2b8 | 6608 | ldr xd, [xm, #:gottprel_lo12:var] => movk Rd, :tprel_g0_nc: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 (movk_R0 | (insn & 0x1f), contents + rel->r_offset); |
| a06ea964 NC |
6615 | } |
| 6616 | return bfd_reloc_continue; | |
| 6617 | ||
| 259364ad JW |
6618 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| 6619 | /* LD->LE relaxation (tiny): | |
| 6620 | adr x0, :tlsldm:x => mrs x0, tpidr_el0 | |
| c1fc2d7e YN |
6621 | bl __tls_get_addr => add R0, R0, TCB_SIZE |
| 6622 | ||
| 6623 | Where R is x for lp64 mode, and w for ilp32 mode. */ | |
| 259364ad JW |
6624 | if (is_local) |
| 6625 | { | |
| 6626 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6627 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26)); | |
| 6628 | /* No need of CALL26 relocation for tls_get_addr. */ | |
| 6629 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 6630 | bfd_putl32 (0xd53bd040, contents + rel->r_offset + 0); | |
| 2d0ca824 YN |
6631 | bfd_putl32 (add_R0_R0 | (TCB_SIZE << 10), |
| 6632 | contents + rel->r_offset + 4); | |
| 259364ad JW |
6633 | return bfd_reloc_ok; |
| 6634 | } | |
| 6635 | return bfd_reloc_continue; | |
| 6636 | ||
| 6637 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: | |
| 6638 | /* LD->LE relaxation (small): | |
| 6639 | adrp x0, :tlsldm:x => mrs x0, tpidr_el0 | |
| 6640 | */ | |
| 6641 | if (is_local) | |
| 6642 | { | |
| 6643 | bfd_putl32 (0xd53bd040, contents + rel->r_offset); | |
| 6644 | return bfd_reloc_ok; | |
| 6645 | } | |
| 6646 | return bfd_reloc_continue; | |
| 6647 | ||
| 6648 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: | |
| 6649 | /* LD->LE relaxation (small): | |
| c1fc2d7e | 6650 | add x0, #:tlsldm_lo12:x => add R0, R0, TCB_SIZE |
| 259364ad | 6651 | bl __tls_get_addr => nop |
| c1fc2d7e YN |
6652 | |
| 6653 | Where R is x for lp64 mode, and w for ilp32 mode. */ | |
| 259364ad JW |
6654 | if (is_local) |
| 6655 | { | |
| 6656 | BFD_ASSERT (rel->r_offset + 4 == rel[1].r_offset); | |
| 6657 | BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (CALL26)); | |
| 6658 | /* No need of CALL26 relocation for tls_get_addr. */ | |
| 6659 | rel[1].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE); | |
| 2d0ca824 YN |
6660 | bfd_putl32 (add_R0_R0 | (TCB_SIZE << 10), |
| 6661 | contents + rel->r_offset + 0); | |
| c1fc2d7e | 6662 | bfd_putl32 (INSN_NOP, contents + rel->r_offset + 4); |
| 259364ad JW |
6663 | return bfd_reloc_ok; |
| 6664 | } | |
| 6665 | return bfd_reloc_continue; | |
| 6666 | ||
| a06ea964 NC |
6667 | default: |
| 6668 | return bfd_reloc_continue; | |
| 6669 | } | |
| 6670 | ||
| 6671 | return bfd_reloc_ok; | |
| 6672 | } | |
| 6673 | ||
| 6674 | /* Relocate an AArch64 ELF section. */ | |
| 6675 | ||
| 6676 | static bfd_boolean | |
| cec5225b | 6677 | elfNN_aarch64_relocate_section (bfd *output_bfd, |
| a06ea964 NC |
6678 | struct bfd_link_info *info, |
| 6679 | bfd *input_bfd, | |
| 6680 | asection *input_section, | |
| 6681 | bfd_byte *contents, | |
| 6682 | Elf_Internal_Rela *relocs, | |
| 6683 | Elf_Internal_Sym *local_syms, | |
| 6684 | asection **local_sections) | |
| 6685 | { | |
| 6686 | Elf_Internal_Shdr *symtab_hdr; | |
| 6687 | struct elf_link_hash_entry **sym_hashes; | |
| 6688 | Elf_Internal_Rela *rel; | |
| 6689 | Elf_Internal_Rela *relend; | |
| 6690 | const char *name; | |
| cec5225b | 6691 | struct elf_aarch64_link_hash_table *globals; |
| a06ea964 NC |
6692 | bfd_boolean save_addend = FALSE; |
| 6693 | bfd_vma addend = 0; | |
| 6694 | ||
| cec5225b | 6695 | globals = elf_aarch64_hash_table (info); |
| a06ea964 NC |
6696 | |
| 6697 | symtab_hdr = &elf_symtab_hdr (input_bfd); | |
| 6698 | sym_hashes = elf_sym_hashes (input_bfd); | |
| 6699 | ||
| 6700 | rel = relocs; | |
| 6701 | relend = relocs + input_section->reloc_count; | |
| 6702 | for (; rel < relend; rel++) | |
| 6703 | { | |
| 6704 | unsigned int r_type; | |
| a6bb11b2 YZ |
6705 | bfd_reloc_code_real_type bfd_r_type; |
| 6706 | bfd_reloc_code_real_type relaxed_bfd_r_type; | |
| a06ea964 NC |
6707 | reloc_howto_type *howto; |
| 6708 | unsigned long r_symndx; | |
| 6709 | Elf_Internal_Sym *sym; | |
| 6710 | asection *sec; | |
| 6711 | struct elf_link_hash_entry *h; | |
| 6712 | bfd_vma relocation; | |
| 6713 | bfd_reloc_status_type r; | |
| 6714 | arelent bfd_reloc; | |
| 6715 | char sym_type; | |
| 6716 | bfd_boolean unresolved_reloc = FALSE; | |
| 6717 | char *error_message = NULL; | |
| 6718 | ||
| cec5225b YZ |
6719 | r_symndx = ELFNN_R_SYM (rel->r_info); |
| 6720 | r_type = ELFNN_R_TYPE (rel->r_info); | |
| a06ea964 | 6721 | |
| 0aa13fee AM |
6722 | bfd_reloc.howto = elfNN_aarch64_howto_from_type (input_bfd, r_type); |
| 6723 | howto = bfd_reloc.howto; | |
| a06ea964 | 6724 | |
| 7fcfd62d | 6725 | if (howto == NULL) |
| 47aeb64c NC |
6726 | return _bfd_unrecognized_reloc (input_bfd, input_section, r_type); |
| 6727 | ||
| a6bb11b2 | 6728 | bfd_r_type = elfNN_aarch64_bfd_reloc_from_howto (howto); |
| 7fcfd62d | 6729 | |
| a06ea964 NC |
6730 | h = NULL; |
| 6731 | sym = NULL; | |
| 6732 | sec = NULL; | |
| 6733 | ||
| 6734 | if (r_symndx < symtab_hdr->sh_info) | |
| 6735 | { | |
| 6736 | sym = local_syms + r_symndx; | |
| cec5225b | 6737 | sym_type = ELFNN_ST_TYPE (sym->st_info); |
| a06ea964 NC |
6738 | sec = local_sections[r_symndx]; |
| 6739 | ||
| 6740 | /* An object file might have a reference to a local | |
| 6741 | undefined symbol. This is a daft object file, but we | |
| 6742 | should at least do something about it. */ | |
| 6743 | if (r_type != R_AARCH64_NONE && r_type != R_AARCH64_NULL | |
| 6744 | && bfd_is_und_section (sec) | |
| 6745 | && ELF_ST_BIND (sym->st_info) != STB_WEAK) | |
| 1a72702b AM |
6746 | (*info->callbacks->undefined_symbol) |
| 6747 | (info, bfd_elf_string_from_elf_section | |
| 6748 | (input_bfd, symtab_hdr->sh_link, sym->st_name), | |
| 6749 | input_bfd, input_section, rel->r_offset, TRUE); | |
| a06ea964 | 6750 | |
| a06ea964 | 6751 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 1419bbe5 WN |
6752 | |
| 6753 | /* Relocate against local STT_GNU_IFUNC symbol. */ | |
| 0e1862bb | 6754 | if (!bfd_link_relocatable (info) |
| 1419bbe5 WN |
6755 | && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) |
| 6756 | { | |
| 6757 | h = elfNN_aarch64_get_local_sym_hash (globals, input_bfd, | |
| 6758 | rel, FALSE); | |
| 6759 | if (h == NULL) | |
| 6760 | abort (); | |
| 6761 | ||
| 6762 | /* Set STT_GNU_IFUNC symbol value. */ | |
| 6763 | h->root.u.def.value = sym->st_value; | |
| 6764 | h->root.u.def.section = sec; | |
| 6765 | } | |
| a06ea964 NC |
6766 | } |
| 6767 | else | |
| 6768 | { | |
| 62d887d4 | 6769 | bfd_boolean warned, ignored; |
| a06ea964 NC |
6770 | |
| 6771 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
| 6772 | r_symndx, symtab_hdr, sym_hashes, | |
| 6773 | h, sec, relocation, | |
| 62d887d4 | 6774 | unresolved_reloc, warned, ignored); |
| a06ea964 NC |
6775 | |
| 6776 | sym_type = h->type; | |
| 6777 | } | |
| 6778 | ||
| 6779 | if (sec != NULL && discarded_section (sec)) | |
| 6780 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, | |
| 6781 | rel, 1, relend, howto, 0, contents); | |
| 6782 | ||
| 0e1862bb | 6783 | if (bfd_link_relocatable (info)) |
| 2e0488d3 | 6784 | continue; |
| a06ea964 NC |
6785 | |
| 6786 | if (h != NULL) | |
| 6787 | name = h->root.root.string; | |
| 6788 | else | |
| 6789 | { | |
| 6790 | name = (bfd_elf_string_from_elf_section | |
| 6791 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
| 6792 | if (name == NULL || *name == '\0') | |
| 6793 | name = bfd_section_name (input_bfd, sec); | |
| 6794 | } | |
| 6795 | ||
| 6796 | if (r_symndx != 0 | |
| 6797 | && r_type != R_AARCH64_NONE | |
| 6798 | && r_type != R_AARCH64_NULL | |
| 6799 | && (h == NULL | |
| 6800 | || h->root.type == bfd_link_hash_defined | |
| 6801 | || h->root.type == bfd_link_hash_defweak) | |
| a6bb11b2 | 6802 | && IS_AARCH64_TLS_RELOC (bfd_r_type) != (sym_type == STT_TLS)) |
| a06ea964 | 6803 | { |
| 4eca0228 | 6804 | _bfd_error_handler |
| a06ea964 | 6805 | ((sym_type == STT_TLS |
| 695344c0 | 6806 | /* xgettext:c-format */ |
| 2dcf00ce | 6807 | ? _("%pB(%pA+%#" PRIx64 "): %s used with TLS symbol %s") |
| 695344c0 | 6808 | /* xgettext:c-format */ |
| 2dcf00ce | 6809 | : _("%pB(%pA+%#" PRIx64 "): %s used with non-TLS symbol %s")), |
| a06ea964 | 6810 | input_bfd, |
| 2dcf00ce | 6811 | input_section, (uint64_t) rel->r_offset, howto->name, name); |
| a06ea964 NC |
6812 | } |
| 6813 | ||
| a06ea964 | 6814 | /* We relax only if we can see that there can be a valid transition |
| 07d6d2b8 AM |
6815 | from a reloc type to another. |
| 6816 | We call elfNN_aarch64_final_link_relocate unless we're completely | |
| 6817 | done, i.e., the relaxation produced the final output we want. */ | |
| a06ea964 | 6818 | |
| a6bb11b2 YZ |
6819 | relaxed_bfd_r_type = aarch64_tls_transition (input_bfd, info, r_type, |
| 6820 | h, r_symndx); | |
| 6821 | if (relaxed_bfd_r_type != bfd_r_type) | |
| a06ea964 | 6822 | { |
| a6bb11b2 YZ |
6823 | bfd_r_type = relaxed_bfd_r_type; |
| 6824 | howto = elfNN_aarch64_howto_from_bfd_reloc (bfd_r_type); | |
| 6825 | BFD_ASSERT (howto != NULL); | |
| 6826 | r_type = howto->type; | |
| 9fca35fc TC |
6827 | r = elfNN_aarch64_tls_relax (globals, input_bfd, input_section, |
| 6828 | contents, rel, h); | |
| a06ea964 NC |
6829 | unresolved_reloc = 0; |
| 6830 | } | |
| 6831 | else | |
| 6832 | r = bfd_reloc_continue; | |
| 6833 | ||
| 6834 | /* There may be multiple consecutive relocations for the | |
| 07d6d2b8 AM |
6835 | same offset. In that case we are supposed to treat the |
| 6836 | output of each relocation as the addend for the next. */ | |
| a06ea964 NC |
6837 | if (rel + 1 < relend |
| 6838 | && rel->r_offset == rel[1].r_offset | |
| cec5225b YZ |
6839 | && ELFNN_R_TYPE (rel[1].r_info) != R_AARCH64_NONE |
| 6840 | && ELFNN_R_TYPE (rel[1].r_info) != R_AARCH64_NULL) | |
| a06ea964 NC |
6841 | save_addend = TRUE; |
| 6842 | else | |
| 6843 | save_addend = FALSE; | |
| 6844 | ||
| 6845 | if (r == bfd_reloc_continue) | |
| cec5225b | 6846 | r = elfNN_aarch64_final_link_relocate (howto, input_bfd, output_bfd, |
| a06ea964 NC |
6847 | input_section, contents, rel, |
| 6848 | relocation, info, sec, | |
| 6849 | h, &unresolved_reloc, | |
| 1419bbe5 | 6850 | save_addend, &addend, sym); |
| a06ea964 | 6851 | |
| 0aa13fee | 6852 | switch (elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type)) |
| a06ea964 | 6853 | { |
| ce336788 | 6854 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| a6bb11b2 | 6855 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 6856 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 7ba7cfe4 | 6857 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 6858 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| 73f925cc | 6859 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 6860 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 6861 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
6862 | if (! symbol_got_offset_mark_p (input_bfd, h, r_symndx)) |
| 6863 | { | |
| 6864 | bfd_boolean need_relocs = FALSE; | |
| 6865 | bfd_byte *loc; | |
| 6866 | int indx; | |
| 6867 | bfd_vma off; | |
| 6868 | ||
| 6869 | off = symbol_got_offset (input_bfd, h, r_symndx); | |
| 6870 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
| 6871 | ||
| 6872 | need_relocs = | |
| 6dda7875 | 6873 | (!bfd_link_executable (info) || indx != 0) && |
| a06ea964 NC |
6874 | (h == NULL |
| 6875 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 6876 | || h->root.type != bfd_link_hash_undefweak); | |
| 6877 | ||
| 6878 | BFD_ASSERT (globals->root.srelgot != NULL); | |
| 6879 | ||
| 6880 | if (need_relocs) | |
| 6881 | { | |
| 6882 | Elf_Internal_Rela rela; | |
| a6bb11b2 | 6883 | rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLS_DTPMOD)); |
| a06ea964 NC |
6884 | rela.r_addend = 0; |
| 6885 | rela.r_offset = globals->root.sgot->output_section->vma + | |
| 6886 | globals->root.sgot->output_offset + off; | |
| 6887 | ||
| 6888 | ||
| 6889 | loc = globals->root.srelgot->contents; | |
| 6890 | loc += globals->root.srelgot->reloc_count++ | |
| 6891 | * RELOC_SIZE (htab); | |
| cec5225b | 6892 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 | 6893 | |
| f69e4920 | 6894 | bfd_reloc_code_real_type real_type = |
| 0aa13fee | 6895 | elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| f69e4920 JW |
6896 | |
| 6897 | if (real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21 | |
| 73f925cc JW |
6898 | || real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21 |
| 6899 | || real_type == BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC) | |
| 77a69ff8 JW |
6900 | { |
| 6901 | /* For local dynamic, don't generate DTPREL in any case. | |
| 6902 | Initialize the DTPREL slot into zero, so we get module | |
| 6903 | base address when invoke runtime TLS resolver. */ | |
| 6904 | bfd_put_NN (output_bfd, 0, | |
| 6905 | globals->root.sgot->contents + off | |
| 6906 | + GOT_ENTRY_SIZE); | |
| 6907 | } | |
| 6908 | else if (indx == 0) | |
| a06ea964 | 6909 | { |
| cec5225b | 6910 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
6911 | relocation - dtpoff_base (info), |
| 6912 | globals->root.sgot->contents + off | |
| 6913 | + GOT_ENTRY_SIZE); | |
| 6914 | } | |
| 6915 | else | |
| 6916 | { | |
| 6917 | /* This TLS symbol is global. We emit a | |
| 6918 | relocation to fixup the tls offset at load | |
| 6919 | time. */ | |
| 6920 | rela.r_info = | |
| a6bb11b2 | 6921 | ELFNN_R_INFO (indx, AARCH64_R (TLS_DTPREL)); |
| a06ea964 NC |
6922 | rela.r_addend = 0; |
| 6923 | rela.r_offset = | |
| 6924 | (globals->root.sgot->output_section->vma | |
| 6925 | + globals->root.sgot->output_offset + off | |
| 6926 | + GOT_ENTRY_SIZE); | |
| 6927 | ||
| 6928 | loc = globals->root.srelgot->contents; | |
| 6929 | loc += globals->root.srelgot->reloc_count++ | |
| 6930 | * RELOC_SIZE (globals); | |
| cec5225b YZ |
6931 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| 6932 | bfd_put_NN (output_bfd, (bfd_vma) 0, | |
| a06ea964 NC |
6933 | globals->root.sgot->contents + off |
| 6934 | + GOT_ENTRY_SIZE); | |
| 6935 | } | |
| 6936 | } | |
| 6937 | else | |
| 6938 | { | |
| cec5225b | 6939 | bfd_put_NN (output_bfd, (bfd_vma) 1, |
| a06ea964 | 6940 | globals->root.sgot->contents + off); |
| cec5225b | 6941 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
6942 | relocation - dtpoff_base (info), |
| 6943 | globals->root.sgot->contents + off | |
| 6944 | + GOT_ENTRY_SIZE); | |
| 6945 | } | |
| 6946 | ||
| 6947 | symbol_got_offset_mark (input_bfd, h, r_symndx); | |
| 6948 | } | |
| 6949 | break; | |
| 6950 | ||
| a6bb11b2 YZ |
6951 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| 6952 | case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC: | |
| 043bf05a | 6953 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 3b957e5b RL |
6954 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 6955 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| a06ea964 NC |
6956 | if (! symbol_got_offset_mark_p (input_bfd, h, r_symndx)) |
| 6957 | { | |
| 6958 | bfd_boolean need_relocs = FALSE; | |
| 6959 | bfd_byte *loc; | |
| 6960 | int indx; | |
| 6961 | bfd_vma off; | |
| 6962 | ||
| 6963 | off = symbol_got_offset (input_bfd, h, r_symndx); | |
| 6964 | ||
| 6965 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
| 6966 | ||
| 6967 | need_relocs = | |
| 6dda7875 | 6968 | (!bfd_link_executable (info) || indx != 0) && |
| a06ea964 NC |
6969 | (h == NULL |
| 6970 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 6971 | || h->root.type != bfd_link_hash_undefweak); | |
| 6972 | ||
| 6973 | BFD_ASSERT (globals->root.srelgot != NULL); | |
| 6974 | ||
| 6975 | if (need_relocs) | |
| 6976 | { | |
| 6977 | Elf_Internal_Rela rela; | |
| 6978 | ||
| 6979 | if (indx == 0) | |
| 6980 | rela.r_addend = relocation - dtpoff_base (info); | |
| 6981 | else | |
| 6982 | rela.r_addend = 0; | |
| 6983 | ||
| a6bb11b2 | 6984 | rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLS_TPREL)); |
| a06ea964 NC |
6985 | rela.r_offset = globals->root.sgot->output_section->vma + |
| 6986 | globals->root.sgot->output_offset + off; | |
| 6987 | ||
| 6988 | loc = globals->root.srelgot->contents; | |
| 6989 | loc += globals->root.srelgot->reloc_count++ | |
| 6990 | * RELOC_SIZE (htab); | |
| 6991 | ||
| cec5225b | 6992 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 | 6993 | |
| cec5225b | 6994 | bfd_put_NN (output_bfd, rela.r_addend, |
| a06ea964 NC |
6995 | globals->root.sgot->contents + off); |
| 6996 | } | |
| 6997 | else | |
| cec5225b | 6998 | bfd_put_NN (output_bfd, relocation - tpoff_base (info), |
| a06ea964 NC |
6999 | globals->root.sgot->contents + off); |
| 7000 | ||
| 7001 | symbol_got_offset_mark (input_bfd, h, r_symndx); | |
| 7002 | } | |
| 7003 | break; | |
| 7004 | ||
| f955cccf | 7005 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| a6bb11b2 | 7006 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 7007 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| a6bb11b2 | 7008 | case BFD_RELOC_AARCH64_TLSDESC_LDNN_LO12_NC: |
| 1ada945d | 7009 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 0484b454 RL |
7010 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
| 7011 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| a06ea964 NC |
7012 | if (! symbol_tlsdesc_got_offset_mark_p (input_bfd, h, r_symndx)) |
| 7013 | { | |
| 7014 | bfd_boolean need_relocs = FALSE; | |
| 7015 | int indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
| 7016 | bfd_vma off = symbol_tlsdesc_got_offset (input_bfd, h, r_symndx); | |
| 7017 | ||
| 7018 | need_relocs = (h == NULL | |
| 7019 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 7020 | || h->root.type != bfd_link_hash_undefweak); | |
| 7021 | ||
| 7022 | BFD_ASSERT (globals->root.srelgot != NULL); | |
| 7023 | BFD_ASSERT (globals->root.sgot != NULL); | |
| 7024 | ||
| 7025 | if (need_relocs) | |
| 7026 | { | |
| 7027 | bfd_byte *loc; | |
| 7028 | Elf_Internal_Rela rela; | |
| a6bb11b2 YZ |
7029 | rela.r_info = ELFNN_R_INFO (indx, AARCH64_R (TLSDESC)); |
| 7030 | ||
| a06ea964 NC |
7031 | rela.r_addend = 0; |
| 7032 | rela.r_offset = (globals->root.sgotplt->output_section->vma | |
| 7033 | + globals->root.sgotplt->output_offset | |
| 7034 | + off + globals->sgotplt_jump_table_size); | |
| 7035 | ||
| 7036 | if (indx == 0) | |
| 7037 | rela.r_addend = relocation - dtpoff_base (info); | |
| 7038 | ||
| 7039 | /* Allocate the next available slot in the PLT reloc | |
| 7040 | section to hold our R_AARCH64_TLSDESC, the next | |
| 7041 | available slot is determined from reloc_count, | |
| 7042 | which we step. But note, reloc_count was | |
| 7043 | artifically moved down while allocating slots for | |
| 7044 | real PLT relocs such that all of the PLT relocs | |
| 7045 | will fit above the initial reloc_count and the | |
| 7046 | extra stuff will fit below. */ | |
| 7047 | loc = globals->root.srelplt->contents; | |
| 7048 | loc += globals->root.srelplt->reloc_count++ | |
| 7049 | * RELOC_SIZE (globals); | |
| 7050 | ||
| cec5225b | 7051 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 | 7052 | |
| cec5225b | 7053 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| a06ea964 NC |
7054 | globals->root.sgotplt->contents + off + |
| 7055 | globals->sgotplt_jump_table_size); | |
| cec5225b | 7056 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| a06ea964 NC |
7057 | globals->root.sgotplt->contents + off + |
| 7058 | globals->sgotplt_jump_table_size + | |
| 7059 | GOT_ENTRY_SIZE); | |
| 7060 | } | |
| 7061 | ||
| 7062 | symbol_tlsdesc_got_offset_mark (input_bfd, h, r_symndx); | |
| 7063 | } | |
| 7064 | break; | |
| a6bb11b2 YZ |
7065 | default: |
| 7066 | break; | |
| a06ea964 NC |
7067 | } |
| 7068 | ||
| a06ea964 | 7069 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 07d6d2b8 AM |
7070 | because such sections are not SEC_ALLOC and thus ld.so will |
| 7071 | not process them. */ | |
| a06ea964 NC |
7072 | if (unresolved_reloc |
| 7073 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
| 7074 | && h->def_dynamic) | |
| 7075 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 7076 | +rel->r_offset) != (bfd_vma) - 1) | |
| 7077 | { | |
| 4eca0228 | 7078 | _bfd_error_handler |
| 695344c0 | 7079 | /* xgettext:c-format */ |
| 2dcf00ce AM |
7080 | (_("%pB(%pA+%#" PRIx64 "): " |
| 7081 | "unresolvable %s relocation against symbol `%s'"), | |
| 7082 | input_bfd, input_section, (uint64_t) rel->r_offset, howto->name, | |
| a06ea964 NC |
7083 | h->root.root.string); |
| 7084 | return FALSE; | |
| 7085 | } | |
| 7086 | ||
| 7087 | if (r != bfd_reloc_ok && r != bfd_reloc_continue) | |
| 7088 | { | |
| c674f5cd | 7089 | bfd_reloc_code_real_type real_r_type |
| 0aa13fee | 7090 | = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type); |
| c674f5cd | 7091 | |
| a06ea964 NC |
7092 | switch (r) |
| 7093 | { | |
| 7094 | case bfd_reloc_overflow: | |
| 1a72702b AM |
7095 | (*info->callbacks->reloc_overflow) |
| 7096 | (info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0, | |
| 7097 | input_bfd, input_section, rel->r_offset); | |
| c674f5cd JW |
7098 | if (real_r_type == BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15 |
| 7099 | || real_r_type == BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14) | |
| 7100 | { | |
| 7101 | (*info->callbacks->warning) | |
| 7102 | (info, | |
| 90b6238f | 7103 | _("too many GOT entries for -fpic, " |
| c674f5cd JW |
7104 | "please recompile with -fPIC"), |
| 7105 | name, input_bfd, input_section, rel->r_offset); | |
| 7106 | return FALSE; | |
| 7107 | } | |
| 027e9c75 NC |
7108 | /* Overflow can occur when a variable is referenced with a type |
| 7109 | that has a larger alignment than the type with which it was | |
| 7110 | declared. eg: | |
| 7111 | file1.c: extern int foo; int a (void) { return foo; } | |
| 7112 | file2.c: char bar, foo, baz; | |
| 7113 | If the variable is placed into a data section at an offset | |
| 7114 | that is incompatible with the larger alignment requirement | |
| 7115 | overflow will occur. (Strictly speaking this is not overflow | |
| 7116 | but rather an alignment problem, but the bfd_reloc_ error | |
| 7117 | enum does not have a value to cover that situation). | |
| 7118 | ||
| 7119 | Try to catch this situation here and provide a more helpful | |
| 7120 | error message to the user. */ | |
| 7121 | if (addend & ((1 << howto->rightshift) - 1) | |
| 7122 | /* FIXME: Are we testing all of the appropriate reloc | |
| 7123 | types here ? */ | |
| 7124 | && (real_r_type == BFD_RELOC_AARCH64_LD_LO19_PCREL | |
| 7125 | || real_r_type == BFD_RELOC_AARCH64_LDST16_LO12 | |
| 7126 | || real_r_type == BFD_RELOC_AARCH64_LDST32_LO12 | |
| 7127 | || real_r_type == BFD_RELOC_AARCH64_LDST64_LO12 | |
| 7128 | || real_r_type == BFD_RELOC_AARCH64_LDST128_LO12)) | |
| 7129 | { | |
| 7130 | info->callbacks->warning | |
| 90b6238f | 7131 | (info, _("one possible cause of this error is that the \ |
| 027e9c75 | 7132 | symbol is being referenced in the indicated code as if it had a larger \ |
| 90b6238f | 7133 | alignment than was declared where it was defined"), |
| 027e9c75 NC |
7134 | name, input_bfd, input_section, rel->r_offset); |
| 7135 | } | |
| a06ea964 NC |
7136 | break; |
| 7137 | ||
| 7138 | case bfd_reloc_undefined: | |
| 1a72702b AM |
7139 | (*info->callbacks->undefined_symbol) |
| 7140 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); | |
| a06ea964 NC |
7141 | break; |
| 7142 | ||
| 7143 | case bfd_reloc_outofrange: | |
| 7144 | error_message = _("out of range"); | |
| 7145 | goto common_error; | |
| 7146 | ||
| 7147 | case bfd_reloc_notsupported: | |
| 7148 | error_message = _("unsupported relocation"); | |
| 7149 | goto common_error; | |
| 7150 | ||
| 7151 | case bfd_reloc_dangerous: | |
| 7152 | /* error_message should already be set. */ | |
| 7153 | goto common_error; | |
| 7154 | ||
| 7155 | default: | |
| 7156 | error_message = _("unknown error"); | |
| 7157 | /* Fall through. */ | |
| 7158 | ||
| 7159 | common_error: | |
| 7160 | BFD_ASSERT (error_message != NULL); | |
| 1a72702b AM |
7161 | (*info->callbacks->reloc_dangerous) |
| 7162 | (info, error_message, input_bfd, input_section, rel->r_offset); | |
| a06ea964 NC |
7163 | break; |
| 7164 | } | |
| 7165 | } | |
| 027e9c75 NC |
7166 | |
| 7167 | if (!save_addend) | |
| 7168 | addend = 0; | |
| a06ea964 NC |
7169 | } |
| 7170 | ||
| 7171 | return TRUE; | |
| 7172 | } | |
| 7173 | ||
| 7174 | /* Set the right machine number. */ | |
| 7175 | ||
| 7176 | static bfd_boolean | |
| cec5225b | 7177 | elfNN_aarch64_object_p (bfd *abfd) |
| a06ea964 | 7178 | { |
| cec5225b YZ |
7179 | #if ARCH_SIZE == 32 |
| 7180 | bfd_default_set_arch_mach (abfd, bfd_arch_aarch64, bfd_mach_aarch64_ilp32); | |
| 7181 | #else | |
| a06ea964 | 7182 | bfd_default_set_arch_mach (abfd, bfd_arch_aarch64, bfd_mach_aarch64); |
| cec5225b | 7183 | #endif |
| a06ea964 NC |
7184 | return TRUE; |
| 7185 | } | |
| 7186 | ||
| 7187 | /* Function to keep AArch64 specific flags in the ELF header. */ | |
| 7188 | ||
| 7189 | static bfd_boolean | |
| cec5225b | 7190 | elfNN_aarch64_set_private_flags (bfd *abfd, flagword flags) |
| a06ea964 NC |
7191 | { |
| 7192 | if (elf_flags_init (abfd) && elf_elfheader (abfd)->e_flags != flags) | |
| 7193 | { | |
| 7194 | } | |
| 7195 | else | |
| 7196 | { | |
| 7197 | elf_elfheader (abfd)->e_flags = flags; | |
| 7198 | elf_flags_init (abfd) = TRUE; | |
| 7199 | } | |
| 7200 | ||
| 7201 | return TRUE; | |
| 7202 | } | |
| 7203 | ||
| a06ea964 NC |
7204 | /* Merge backend specific data from an object file to the output |
| 7205 | object file when linking. */ | |
| 7206 | ||
| 7207 | static bfd_boolean | |
| 50e03d47 | 7208 | elfNN_aarch64_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| a06ea964 | 7209 | { |
| 50e03d47 | 7210 | bfd *obfd = info->output_bfd; |
| a06ea964 NC |
7211 | flagword out_flags; |
| 7212 | flagword in_flags; | |
| 7213 | bfd_boolean flags_compatible = TRUE; | |
| 7214 | asection *sec; | |
| 7215 | ||
| 7216 | /* Check if we have the same endianess. */ | |
| 50e03d47 | 7217 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| a06ea964 NC |
7218 | return FALSE; |
| 7219 | ||
| 7220 | if (!is_aarch64_elf (ibfd) || !is_aarch64_elf (obfd)) | |
| 7221 | return TRUE; | |
| 7222 | ||
| 7223 | /* The input BFD must have had its flags initialised. */ | |
| 7224 | /* The following seems bogus to me -- The flags are initialized in | |
| 7225 | the assembler but I don't think an elf_flags_init field is | |
| 7226 | written into the object. */ | |
| 7227 | /* BFD_ASSERT (elf_flags_init (ibfd)); */ | |
| 7228 | ||
| 7229 | in_flags = elf_elfheader (ibfd)->e_flags; | |
| 7230 | out_flags = elf_elfheader (obfd)->e_flags; | |
| 7231 | ||
| 7232 | if (!elf_flags_init (obfd)) | |
| 7233 | { | |
| 7234 | /* If the input is the default architecture and had the default | |
| 07d6d2b8 AM |
7235 | flags then do not bother setting the flags for the output |
| 7236 | architecture, instead allow future merges to do this. If no | |
| 7237 | future merges ever set these flags then they will retain their | |
| 7238 | uninitialised values, which surprise surprise, correspond | |
| 7239 | to the default values. */ | |
| a06ea964 NC |
7240 | if (bfd_get_arch_info (ibfd)->the_default |
| 7241 | && elf_elfheader (ibfd)->e_flags == 0) | |
| 7242 | return TRUE; | |
| 7243 | ||
| 7244 | elf_flags_init (obfd) = TRUE; | |
| 7245 | elf_elfheader (obfd)->e_flags = in_flags; | |
| 7246 | ||
| 7247 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
| 7248 | && bfd_get_arch_info (obfd)->the_default) | |
| 7249 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
| 7250 | bfd_get_mach (ibfd)); | |
| 7251 | ||
| 7252 | return TRUE; | |
| 7253 | } | |
| 7254 | ||
| 7255 | /* Identical flags must be compatible. */ | |
| 7256 | if (in_flags == out_flags) | |
| 7257 | return TRUE; | |
| 7258 | ||
| 7259 | /* Check to see if the input BFD actually contains any sections. If | |
| 7260 | not, its flags may not have been initialised either, but it | |
| 7261 | cannot actually cause any incompatiblity. Do not short-circuit | |
| 7262 | dynamic objects; their section list may be emptied by | |
| 7263 | elf_link_add_object_symbols. | |
| 7264 | ||
| 7265 | Also check to see if there are no code sections in the input. | |
| 7266 | In this case there is no need to check for code specific flags. | |
| 7267 | XXX - do we need to worry about floating-point format compatability | |
| 7268 | in data sections ? */ | |
| 7269 | if (!(ibfd->flags & DYNAMIC)) | |
| 7270 | { | |
| 7271 | bfd_boolean null_input_bfd = TRUE; | |
| 7272 | bfd_boolean only_data_sections = TRUE; | |
| 7273 | ||
| 7274 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 7275 | { | |
| 7276 | if ((bfd_get_section_flags (ibfd, sec) | |
| 7277 | & (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) | |
| 7278 | == (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) | |
| 7279 | only_data_sections = FALSE; | |
| 7280 | ||
| 7281 | null_input_bfd = FALSE; | |
| 7282 | break; | |
| 7283 | } | |
| 7284 | ||
| 7285 | if (null_input_bfd || only_data_sections) | |
| 7286 | return TRUE; | |
| 7287 | } | |
| 7288 | ||
| 7289 | return flags_compatible; | |
| 7290 | } | |
| 7291 | ||
| 7292 | /* Display the flags field. */ | |
| 7293 | ||
| 7294 | static bfd_boolean | |
| cec5225b | 7295 | elfNN_aarch64_print_private_bfd_data (bfd *abfd, void *ptr) |
| a06ea964 NC |
7296 | { |
| 7297 | FILE *file = (FILE *) ptr; | |
| 7298 | unsigned long flags; | |
| 7299 | ||
| 7300 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
| 7301 | ||
| 7302 | /* Print normal ELF private data. */ | |
| 7303 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 7304 | ||
| 7305 | flags = elf_elfheader (abfd)->e_flags; | |
| 7306 | /* Ignore init flag - it may not be set, despite the flags field | |
| 7307 | containing valid data. */ | |
| 7308 | ||
| 7309 | /* xgettext:c-format */ | |
| 7310 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); | |
| 7311 | ||
| 7312 | if (flags) | |
| 7313 | fprintf (file, _("<Unrecognised flag bits set>")); | |
| 7314 | ||
| 7315 | fputc ('\n', file); | |
| 7316 | ||
| 7317 | return TRUE; | |
| 7318 | } | |
| 7319 | ||
| 63c1f59d AM |
7320 | /* Find dynamic relocs for H that apply to read-only sections. */ |
| 7321 | ||
| 7322 | static asection * | |
| 7323 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7324 | { | |
| 7325 | struct elf_dyn_relocs *p; | |
| 7326 | ||
| 7327 | for (p = elf_aarch64_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
| 7328 | { | |
| 7329 | asection *s = p->sec->output_section; | |
| 7330 | ||
| 7331 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7332 | return p->sec; | |
| 7333 | } | |
| 7334 | return NULL; | |
| 7335 | } | |
| 7336 | ||
| 6353d82b JW |
7337 | /* Return true if we need copy relocation against EH. */ |
| 7338 | ||
| 7339 | static bfd_boolean | |
| 7340 | need_copy_relocation_p (struct elf_aarch64_link_hash_entry *eh) | |
| 7341 | { | |
| 7342 | struct elf_dyn_relocs *p; | |
| 7343 | asection *s; | |
| 7344 | ||
| 7345 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7346 | { | |
| 7347 | /* If there is any pc-relative reference, we need to keep copy relocation | |
| 7348 | to avoid propagating the relocation into runtime that current glibc | |
| 7349 | does not support. */ | |
| 7350 | if (p->pc_count) | |
| 7351 | return TRUE; | |
| 7352 | ||
| 7353 | s = p->sec->output_section; | |
| 7354 | /* Need copy relocation if it's against read-only section. */ | |
| 7355 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7356 | return TRUE; | |
| 7357 | } | |
| 7358 | ||
| 7359 | return FALSE; | |
| 7360 | } | |
| 7361 | ||
| a06ea964 NC |
7362 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7363 | regular object. The current definition is in some section of the | |
| 7364 | dynamic object, but we're not including those sections. We have to | |
| 7365 | change the definition to something the rest of the link can | |
| 7366 | understand. */ | |
| 7367 | ||
| 7368 | static bfd_boolean | |
| cec5225b | 7369 | elfNN_aarch64_adjust_dynamic_symbol (struct bfd_link_info *info, |
| a06ea964 NC |
7370 | struct elf_link_hash_entry *h) |
| 7371 | { | |
| cec5225b | 7372 | struct elf_aarch64_link_hash_table *htab; |
| 5474d94f | 7373 | asection *s, *srel; |
| a06ea964 NC |
7374 | |
| 7375 | /* If this is a function, put it in the procedure linkage table. We | |
| 7376 | will fill in the contents of the procedure linkage table later, | |
| 7377 | when we know the address of the .got section. */ | |
| 1419bbe5 | 7378 | if (h->type == STT_FUNC || h->type == STT_GNU_IFUNC || h->needs_plt) |
| a06ea964 NC |
7379 | { |
| 7380 | if (h->plt.refcount <= 0 | |
| 1419bbe5 WN |
7381 | || (h->type != STT_GNU_IFUNC |
| 7382 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 7383 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| 7384 | && h->root.type == bfd_link_hash_undefweak)))) | |
| a06ea964 NC |
7385 | { |
| 7386 | /* This case can occur if we saw a CALL26 reloc in | |
| 7387 | an input file, but the symbol wasn't referred to | |
| 7388 | by a dynamic object or all references were | |
| 7389 | garbage collected. In which case we can end up | |
| 7390 | resolving. */ | |
| 7391 | h->plt.offset = (bfd_vma) - 1; | |
| 7392 | h->needs_plt = 0; | |
| 7393 | } | |
| 7394 | ||
| 7395 | return TRUE; | |
| 7396 | } | |
| 7397 | else | |
| 80de0c6d | 7398 | /* Otherwise, reset to -1. */ |
| a06ea964 NC |
7399 | h->plt.offset = (bfd_vma) - 1; |
| 7400 | ||
| 7401 | ||
| 7402 | /* If this is a weak symbol, and there is a real definition, the | |
| 7403 | processor independent code will have arranged for us to see the | |
| 7404 | real definition first, and we can just use the same value. */ | |
| 60d67dc8 | 7405 | if (h->is_weakalias) |
| a06ea964 | 7406 | { |
| 60d67dc8 AM |
7407 | struct elf_link_hash_entry *def = weakdef (h); |
| 7408 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
| 7409 | h->root.u.def.section = def->root.u.def.section; | |
| 7410 | h->root.u.def.value = def->root.u.def.value; | |
| a06ea964 | 7411 | if (ELIMINATE_COPY_RELOCS || info->nocopyreloc) |
| 60d67dc8 | 7412 | h->non_got_ref = def->non_got_ref; |
| a06ea964 NC |
7413 | return TRUE; |
| 7414 | } | |
| 7415 | ||
| 7416 | /* If we are creating a shared library, we must presume that the | |
| 7417 | only references to the symbol are via the global offset table. | |
| 7418 | For such cases we need not do anything here; the relocations will | |
| 7419 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7420 | if (bfd_link_pic (info)) |
| a06ea964 NC |
7421 | return TRUE; |
| 7422 | ||
| 7423 | /* If there are no references to this symbol that do not use the | |
| 7424 | GOT, we don't need to generate a copy reloc. */ | |
| 7425 | if (!h->non_got_ref) | |
| 7426 | return TRUE; | |
| 7427 | ||
| 7428 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
| 7429 | if (info->nocopyreloc) | |
| 7430 | { | |
| 7431 | h->non_got_ref = 0; | |
| 7432 | return TRUE; | |
| 7433 | } | |
| 7434 | ||
| 6353d82b JW |
7435 | if (ELIMINATE_COPY_RELOCS) |
| 7436 | { | |
| 7437 | struct elf_aarch64_link_hash_entry *eh; | |
| dce2246a | 7438 | /* If we don't find any dynamic relocs in read-only sections, then |
| 6353d82b JW |
7439 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
| 7440 | eh = (struct elf_aarch64_link_hash_entry *) h; | |
| 7441 | if (!need_copy_relocation_p (eh)) | |
| 7442 | { | |
| 7443 | h->non_got_ref = 0; | |
| 7444 | return TRUE; | |
| 7445 | } | |
| 7446 | } | |
| 7447 | ||
| a06ea964 NC |
7448 | /* We must allocate the symbol in our .dynbss section, which will |
| 7449 | become part of the .bss section of the executable. There will be | |
| 7450 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7451 | object will contain position independent code, so all references | |
| 7452 | from the dynamic object to this symbol will go through the global | |
| 7453 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7454 | determine the address it must put in the global offset table, so | |
| 7455 | both the dynamic object and the regular object will refer to the | |
| 7456 | same memory location for the variable. */ | |
| 7457 | ||
| cec5225b | 7458 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
7459 | |
| 7460 | /* We must generate a R_AARCH64_COPY reloc to tell the dynamic linker | |
| 7461 | to copy the initial value out of the dynamic object and into the | |
| 7462 | runtime process image. */ | |
| 5474d94f AM |
7463 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 7464 | { | |
| 7465 | s = htab->root.sdynrelro; | |
| 7466 | srel = htab->root.sreldynrelro; | |
| 7467 | } | |
| 7468 | else | |
| 7469 | { | |
| 7470 | s = htab->root.sdynbss; | |
| 7471 | srel = htab->root.srelbss; | |
| 7472 | } | |
| a06ea964 NC |
7473 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 7474 | { | |
| 5474d94f | 7475 | srel->size += RELOC_SIZE (htab); |
| a06ea964 NC |
7476 | h->needs_copy = 1; |
| 7477 | } | |
| 7478 | ||
| 6cabe1ea | 7479 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| a06ea964 NC |
7480 | |
| 7481 | } | |
| 7482 | ||
| 7483 | static bfd_boolean | |
| cec5225b | 7484 | elfNN_aarch64_allocate_local_symbols (bfd *abfd, unsigned number) |
| a06ea964 NC |
7485 | { |
| 7486 | struct elf_aarch64_local_symbol *locals; | |
| cec5225b | 7487 | locals = elf_aarch64_locals (abfd); |
| a06ea964 NC |
7488 | if (locals == NULL) |
| 7489 | { | |
| 7490 | locals = (struct elf_aarch64_local_symbol *) | |
| 7491 | bfd_zalloc (abfd, number * sizeof (struct elf_aarch64_local_symbol)); | |
| 7492 | if (locals == NULL) | |
| 7493 | return FALSE; | |
| cec5225b | 7494 | elf_aarch64_locals (abfd) = locals; |
| a06ea964 NC |
7495 | } |
| 7496 | return TRUE; | |
| 7497 | } | |
| 7498 | ||
| cc0efaa8 MS |
7499 | /* Create the .got section to hold the global offset table. */ |
| 7500 | ||
| 7501 | static bfd_boolean | |
| 7502 | aarch64_elf_create_got_section (bfd *abfd, struct bfd_link_info *info) | |
| 7503 | { | |
| 7504 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
| 7505 | flagword flags; | |
| 7506 | asection *s; | |
| 7507 | struct elf_link_hash_entry *h; | |
| 7508 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 7509 | ||
| 7510 | /* This function may be called more than once. */ | |
| ce558b89 | 7511 | if (htab->sgot != NULL) |
| cc0efaa8 MS |
7512 | return TRUE; |
| 7513 | ||
| 7514 | flags = bed->dynamic_sec_flags; | |
| 7515 | ||
| 7516 | s = bfd_make_section_anyway_with_flags (abfd, | |
| 7517 | (bed->rela_plts_and_copies_p | |
| 7518 | ? ".rela.got" : ".rel.got"), | |
| 7519 | (bed->dynamic_sec_flags | |
| 7520 | | SEC_READONLY)); | |
| 7521 | if (s == NULL | |
| 7522 | || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align)) | |
| 7523 | return FALSE; | |
| 7524 | htab->srelgot = s; | |
| 7525 | ||
| 7526 | s = bfd_make_section_anyway_with_flags (abfd, ".got", flags); | |
| 7527 | if (s == NULL | |
| 7528 | || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align)) | |
| 7529 | return FALSE; | |
| 7530 | htab->sgot = s; | |
| 7531 | htab->sgot->size += GOT_ENTRY_SIZE; | |
| 7532 | ||
| 7533 | if (bed->want_got_sym) | |
| 7534 | { | |
| 7535 | /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got | |
| 7536 | (or .got.plt) section. We don't do this in the linker script | |
| 7537 | because we don't want to define the symbol if we are not creating | |
| 7538 | a global offset table. */ | |
| 7539 | h = _bfd_elf_define_linkage_sym (abfd, info, s, | |
| 7540 | "_GLOBAL_OFFSET_TABLE_"); | |
| 7541 | elf_hash_table (info)->hgot = h; | |
| 7542 | if (h == NULL) | |
| 7543 | return FALSE; | |
| 7544 | } | |
| 7545 | ||
| 7546 | if (bed->want_got_plt) | |
| 7547 | { | |
| 7548 | s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags); | |
| 7549 | if (s == NULL | |
| 7550 | || !bfd_set_section_alignment (abfd, s, | |
| 7551 | bed->s->log_file_align)) | |
| 7552 | return FALSE; | |
| 7553 | htab->sgotplt = s; | |
| 7554 | } | |
| 7555 | ||
| 7556 | /* The first bit of the global offset table is the header. */ | |
| 7557 | s->size += bed->got_header_size; | |
| 7558 | ||
| 7559 | return TRUE; | |
| 7560 | } | |
| 7561 | ||
| a06ea964 NC |
7562 | /* Look through the relocs for a section during the first phase. */ |
| 7563 | ||
| 7564 | static bfd_boolean | |
| cec5225b | 7565 | elfNN_aarch64_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| a06ea964 NC |
7566 | asection *sec, const Elf_Internal_Rela *relocs) |
| 7567 | { | |
| 7568 | Elf_Internal_Shdr *symtab_hdr; | |
| 7569 | struct elf_link_hash_entry **sym_hashes; | |
| 7570 | const Elf_Internal_Rela *rel; | |
| 7571 | const Elf_Internal_Rela *rel_end; | |
| 7572 | asection *sreloc; | |
| 7573 | ||
| cec5225b | 7574 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 | 7575 | |
| 0e1862bb | 7576 | if (bfd_link_relocatable (info)) |
| a06ea964 NC |
7577 | return TRUE; |
| 7578 | ||
| 7579 | BFD_ASSERT (is_aarch64_elf (abfd)); | |
| 7580 | ||
| cec5225b | 7581 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
7582 | sreloc = NULL; |
| 7583 | ||
| 7584 | symtab_hdr = &elf_symtab_hdr (abfd); | |
| 7585 | sym_hashes = elf_sym_hashes (abfd); | |
| a06ea964 NC |
7586 | |
| 7587 | rel_end = relocs + sec->reloc_count; | |
| 7588 | for (rel = relocs; rel < rel_end; rel++) | |
| 7589 | { | |
| 7590 | struct elf_link_hash_entry *h; | |
| d42c267e | 7591 | unsigned int r_symndx; |
| a06ea964 | 7592 | unsigned int r_type; |
| a6bb11b2 | 7593 | bfd_reloc_code_real_type bfd_r_type; |
| 1419bbe5 | 7594 | Elf_Internal_Sym *isym; |
| a06ea964 | 7595 | |
| cec5225b YZ |
7596 | r_symndx = ELFNN_R_SYM (rel->r_info); |
| 7597 | r_type = ELFNN_R_TYPE (rel->r_info); | |
| a06ea964 NC |
7598 | |
| 7599 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
| 7600 | { | |
| 695344c0 | 7601 | /* xgettext:c-format */ |
| 871b3ab2 | 7602 | _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx); |
| a06ea964 NC |
7603 | return FALSE; |
| 7604 | } | |
| 7605 | ||
| ed5acf27 | 7606 | if (r_symndx < symtab_hdr->sh_info) |
| 1419bbe5 WN |
7607 | { |
| 7608 | /* A local symbol. */ | |
| 7609 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 7610 | abfd, r_symndx); | |
| 7611 | if (isym == NULL) | |
| 7612 | return FALSE; | |
| 7613 | ||
| 7614 | /* Check relocation against local STT_GNU_IFUNC symbol. */ | |
| 7615 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 7616 | { | |
| 7617 | h = elfNN_aarch64_get_local_sym_hash (htab, abfd, rel, | |
| 7618 | TRUE); | |
| 7619 | if (h == NULL) | |
| 7620 | return FALSE; | |
| 7621 | ||
| 7622 | /* Fake a STT_GNU_IFUNC symbol. */ | |
| 7623 | h->type = STT_GNU_IFUNC; | |
| 7624 | h->def_regular = 1; | |
| 7625 | h->ref_regular = 1; | |
| 7626 | h->forced_local = 1; | |
| 7627 | h->root.type = bfd_link_hash_defined; | |
| 7628 | } | |
| 7629 | else | |
| 7630 | h = NULL; | |
| 7631 | } | |
| a06ea964 NC |
7632 | else |
| 7633 | { | |
| 7634 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| 7635 | while (h->root.type == bfd_link_hash_indirect | |
| 7636 | || h->root.type == bfd_link_hash_warning) | |
| 7637 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 7638 | } | |
| 7639 | ||
| 7640 | /* Could be done earlier, if h were already available. */ | |
| a6bb11b2 | 7641 | bfd_r_type = aarch64_tls_transition (abfd, info, r_type, h, r_symndx); |
| a06ea964 | 7642 | |
| 1419bbe5 WN |
7643 | if (h != NULL) |
| 7644 | { | |
| 18f822a0 JW |
7645 | /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. |
| 7646 | This shows up in particular in an R_AARCH64_PREL64 in large model | |
| 7647 | when calculating the pc-relative address to .got section which is | |
| 7648 | used to initialize the gp register. */ | |
| 7649 | if (h->root.root.string | |
| 7650 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
| 7651 | { | |
| 7652 | if (htab->root.dynobj == NULL) | |
| 7653 | htab->root.dynobj = abfd; | |
| 7654 | ||
| 7655 | if (! aarch64_elf_create_got_section (htab->root.dynobj, info)) | |
| 7656 | return FALSE; | |
| 7657 | ||
| 7658 | BFD_ASSERT (h == htab->root.hgot); | |
| 7659 | } | |
| 7660 | ||
| 1419bbe5 WN |
7661 | /* Create the ifunc sections for static executables. If we |
| 7662 | never see an indirect function symbol nor we are building | |
| 7663 | a static executable, those sections will be empty and | |
| 7664 | won't appear in output. */ | |
| 7665 | switch (bfd_r_type) | |
| 7666 | { | |
| 7667 | default: | |
| 7668 | break; | |
| 7669 | ||
| ce336788 JW |
7670 | case BFD_RELOC_AARCH64_ADD_LO12: |
| 7671 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: | |
| 7672 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: | |
| 1419bbe5 | 7673 | case BFD_RELOC_AARCH64_CALL26: |
| ce336788 | 7674 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: |
| 1419bbe5 | 7675 | case BFD_RELOC_AARCH64_JUMP26: |
| 7018c030 | 7676 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| 1419bbe5 | 7677 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| a2e1db00 | 7678 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 99ad26cb | 7679 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| 1419bbe5 | 7680 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| dc8008f5 | 7681 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 7682 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| ce336788 | 7683 | case BFD_RELOC_AARCH64_NN: |
| 1419bbe5 WN |
7684 | if (htab->root.dynobj == NULL) |
| 7685 | htab->root.dynobj = abfd; | |
| 7686 | if (!_bfd_elf_create_ifunc_sections (htab->root.dynobj, info)) | |
| 7687 | return FALSE; | |
| 7688 | break; | |
| 7689 | } | |
| 7690 | ||
| 2d0ca824 | 7691 | /* It is referenced by a non-shared object. */ |
| 1419bbe5 | 7692 | h->ref_regular = 1; |
| 1419bbe5 WN |
7693 | } |
| 7694 | ||
| a6bb11b2 | 7695 | switch (bfd_r_type) |
| a06ea964 | 7696 | { |
| 79e74192 RL |
7697 | case BFD_RELOC_AARCH64_16: |
| 7698 | #if ARCH_SIZE == 64 | |
| 7699 | case BFD_RELOC_AARCH64_32: | |
| 7700 | #endif | |
| 279b2f94 | 7701 | if (bfd_link_pic (info) && (sec->flags & SEC_ALLOC) != 0) |
| 79e74192 | 7702 | { |
| 279b2f94 RL |
7703 | if (h != NULL |
| 7704 | /* This is an absolute symbol. It represents a value instead | |
| 7705 | of an address. */ | |
| c691de6a | 7706 | && (bfd_is_abs_symbol (&h->root) |
| 279b2f94 RL |
7707 | /* This is an undefined symbol. */ |
| 7708 | || h->root.type == bfd_link_hash_undefined)) | |
| 7709 | break; | |
| 7710 | ||
| 7711 | /* For local symbols, defined global symbols in a non-ABS section, | |
| 7712 | it is assumed that the value is an address. */ | |
| 79e74192 RL |
7713 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; |
| 7714 | _bfd_error_handler | |
| 7715 | /* xgettext:c-format */ | |
| 871b3ab2 | 7716 | (_("%pB: relocation %s against `%s' can not be used when making " |
| 79e74192 RL |
7717 | "a shared object"), |
| 7718 | abfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 7719 | (h) ? h->root.root.string : "a local symbol"); | |
| 7720 | bfd_set_error (bfd_error_bad_value); | |
| 7721 | return FALSE; | |
| 7722 | } | |
| 7723 | else | |
| 7724 | break; | |
| 7725 | ||
| 6353d82b JW |
7726 | case BFD_RELOC_AARCH64_MOVW_G0_NC: |
| 7727 | case BFD_RELOC_AARCH64_MOVW_G1_NC: | |
| 7728 | case BFD_RELOC_AARCH64_MOVW_G2_NC: | |
| 7729 | case BFD_RELOC_AARCH64_MOVW_G3: | |
| 7730 | if (bfd_link_pic (info)) | |
| 7731 | { | |
| 7732 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; | |
| 7733 | _bfd_error_handler | |
| 7734 | /* xgettext:c-format */ | |
| 871b3ab2 | 7735 | (_("%pB: relocation %s against `%s' can not be used when making " |
| 6353d82b JW |
7736 | "a shared object; recompile with -fPIC"), |
| 7737 | abfd, elfNN_aarch64_howto_table[howto_index].name, | |
| 7738 | (h) ? h->root.root.string : "a local symbol"); | |
| 7739 | bfd_set_error (bfd_error_bad_value); | |
| 7740 | return FALSE; | |
| 7741 | } | |
| 7742 | /* Fall through. */ | |
| 7743 | ||
| 7744 | case BFD_RELOC_AARCH64_16_PCREL: | |
| 7745 | case BFD_RELOC_AARCH64_32_PCREL: | |
| 7746 | case BFD_RELOC_AARCH64_64_PCREL: | |
| 7747 | case BFD_RELOC_AARCH64_ADD_LO12: | |
| 7748 | case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL: | |
| 7749 | case BFD_RELOC_AARCH64_ADR_HI21_PCREL: | |
| 7750 | case BFD_RELOC_AARCH64_ADR_LO21_PCREL: | |
| 7751 | case BFD_RELOC_AARCH64_LDST128_LO12: | |
| 7752 | case BFD_RELOC_AARCH64_LDST16_LO12: | |
| 7753 | case BFD_RELOC_AARCH64_LDST32_LO12: | |
| 7754 | case BFD_RELOC_AARCH64_LDST64_LO12: | |
| 7755 | case BFD_RELOC_AARCH64_LDST8_LO12: | |
| 7756 | case BFD_RELOC_AARCH64_LD_LO19_PCREL: | |
| 7757 | if (h == NULL || bfd_link_pic (info)) | |
| 7758 | break; | |
| 7759 | /* Fall through. */ | |
| 7760 | ||
| a6bb11b2 | 7761 | case BFD_RELOC_AARCH64_NN: |
| a06ea964 NC |
7762 | |
| 7763 | /* We don't need to handle relocs into sections not going into | |
| 7764 | the "real" output. */ | |
| 7765 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 7766 | break; | |
| 7767 | ||
| 7768 | if (h != NULL) | |
| 7769 | { | |
| 0e1862bb | 7770 | if (!bfd_link_pic (info)) |
| a06ea964 NC |
7771 | h->non_got_ref = 1; |
| 7772 | ||
| 7773 | h->plt.refcount += 1; | |
| 7774 | h->pointer_equality_needed = 1; | |
| 7775 | } | |
| 7776 | ||
| 7777 | /* No need to do anything if we're not creating a shared | |
| 7778 | object. */ | |
| 6353d82b JW |
7779 | if (!(bfd_link_pic (info) |
| 7780 | /* If on the other hand, we are creating an executable, we | |
| 7781 | may need to keep relocations for symbols satisfied by a | |
| 7782 | dynamic library if we manage to avoid copy relocs for the | |
| 7783 | symbol. | |
| 7784 | ||
| 7785 | NOTE: Currently, there is no support of copy relocs | |
| 7786 | elimination on pc-relative relocation types, because there is | |
| 7787 | no dynamic relocation support for them in glibc. We still | |
| 7788 | record the dynamic symbol reference for them. This is | |
| 7789 | because one symbol may be referenced by both absolute | |
| 7790 | relocation (for example, BFD_RELOC_AARCH64_NN) and | |
| 7791 | pc-relative relocation. We need full symbol reference | |
| 7792 | information to make correct decision later in | |
| 7793 | elfNN_aarch64_adjust_dynamic_symbol. */ | |
| 7794 | || (ELIMINATE_COPY_RELOCS | |
| 7795 | && !bfd_link_pic (info) | |
| 7796 | && h != NULL | |
| 7797 | && (h->root.type == bfd_link_hash_defweak | |
| 7798 | || !h->def_regular)))) | |
| a06ea964 NC |
7799 | break; |
| 7800 | ||
| 7801 | { | |
| 7802 | struct elf_dyn_relocs *p; | |
| 7803 | struct elf_dyn_relocs **head; | |
| 6353d82b | 7804 | int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START; |
| a06ea964 NC |
7805 | |
| 7806 | /* We must copy these reloc types into the output file. | |
| 7807 | Create a reloc section in dynobj and make room for | |
| 7808 | this reloc. */ | |
| 7809 | if (sreloc == NULL) | |
| 7810 | { | |
| 7811 | if (htab->root.dynobj == NULL) | |
| 7812 | htab->root.dynobj = abfd; | |
| 7813 | ||
| 7814 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
| 0608afa7 | 7815 | (sec, htab->root.dynobj, LOG_FILE_ALIGN, abfd, /*rela? */ TRUE); |
| a06ea964 NC |
7816 | |
| 7817 | if (sreloc == NULL) | |
| 7818 | return FALSE; | |
| 7819 | } | |
| 7820 | ||
| 7821 | /* If this is a global symbol, we count the number of | |
| 7822 | relocations we need for this symbol. */ | |
| 7823 | if (h != NULL) | |
| 7824 | { | |
| cec5225b YZ |
7825 | struct elf_aarch64_link_hash_entry *eh; |
| 7826 | eh = (struct elf_aarch64_link_hash_entry *) h; | |
| a06ea964 NC |
7827 | head = &eh->dyn_relocs; |
| 7828 | } | |
| 7829 | else | |
| 7830 | { | |
| 7831 | /* Track dynamic relocs needed for local syms too. | |
| 7832 | We really need local syms available to do this | |
| 7833 | easily. Oh well. */ | |
| 7834 | ||
| 7835 | asection *s; | |
| 7836 | void **vpp; | |
| a06ea964 NC |
7837 | |
| 7838 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 7839 | abfd, r_symndx); | |
| 7840 | if (isym == NULL) | |
| 7841 | return FALSE; | |
| 7842 | ||
| 7843 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 7844 | if (s == NULL) | |
| 7845 | s = sec; | |
| 7846 | ||
| 7847 | /* Beware of type punned pointers vs strict aliasing | |
| 7848 | rules. */ | |
| 7849 | vpp = &(elf_section_data (s)->local_dynrel); | |
| 7850 | head = (struct elf_dyn_relocs **) vpp; | |
| 7851 | } | |
| 7852 | ||
| 7853 | p = *head; | |
| 7854 | if (p == NULL || p->sec != sec) | |
| 7855 | { | |
| 7856 | bfd_size_type amt = sizeof *p; | |
| 7857 | p = ((struct elf_dyn_relocs *) | |
| 7858 | bfd_zalloc (htab->root.dynobj, amt)); | |
| 7859 | if (p == NULL) | |
| 7860 | return FALSE; | |
| 7861 | p->next = *head; | |
| 7862 | *head = p; | |
| 7863 | p->sec = sec; | |
| 7864 | } | |
| 7865 | ||
| 7866 | p->count += 1; | |
| 7867 | ||
| 6353d82b JW |
7868 | if (elfNN_aarch64_howto_table[howto_index].pc_relative) |
| 7869 | p->pc_count += 1; | |
| a06ea964 NC |
7870 | } |
| 7871 | break; | |
| 7872 | ||
| 7873 | /* RR: We probably want to keep a consistency check that | |
| 7874 | there are no dangling GOT_PAGE relocs. */ | |
| a6bb11b2 | 7875 | case BFD_RELOC_AARCH64_ADR_GOT_PAGE: |
| 7bcccb57 | 7876 | case BFD_RELOC_AARCH64_GOT_LD_PREL19: |
| 7018c030 | 7877 | case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14: |
| 7bcccb57 | 7878 | case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC: |
| a2e1db00 | 7879 | case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15: |
| 99ad26cb | 7880 | case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15: |
| 7bcccb57 | 7881 | case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC: |
| dc8008f5 | 7882 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC: |
| 74a1bfe1 | 7883 | case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1: |
| f955cccf | 7884 | case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12: |
| 7bcccb57 | 7885 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21: |
| 389b8029 | 7886 | case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21: |
| 7bcccb57 | 7887 | case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC: |
| f955cccf | 7888 | case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12: |
| 1ada945d | 7889 | case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19: |
| 0484b454 RL |
7890 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC: |
| 7891 | case BFD_RELOC_AARCH64_TLSDESC_OFF_G1: | |
| a6bb11b2 | 7892 | case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC: |
| 7bcccb57 | 7893 | case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21: |
| 3c12b054 | 7894 | case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21: |
| 7ba7cfe4 | 7895 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC: |
| 94facae3 | 7896 | case BFD_RELOC_AARCH64_TLSGD_MOVW_G1: |
| a6bb11b2 | 7897 | case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: |
| a6bb11b2 | 7898 | case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC: |
| 7bcccb57 | 7899 | case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: |
| 043bf05a | 7900 | case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19: |
| 3b957e5b RL |
7901 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC: |
| 7902 | case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1: | |
| 73f925cc | 7903 | case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC: |
| f69e4920 | 7904 | case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21: |
| 77a69ff8 | 7905 | case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21: |
| a06ea964 NC |
7906 | { |
| 7907 | unsigned got_type; | |
| 7908 | unsigned old_got_type; | |
| 7909 | ||
| a6bb11b2 | 7910 | got_type = aarch64_reloc_got_type (bfd_r_type); |
| a06ea964 NC |
7911 | |
| 7912 | if (h) | |
| 7913 | { | |
| 7914 | h->got.refcount += 1; | |
| cec5225b | 7915 | old_got_type = elf_aarch64_hash_entry (h)->got_type; |
| a06ea964 NC |
7916 | } |
| 7917 | else | |
| 7918 | { | |
| 7919 | struct elf_aarch64_local_symbol *locals; | |
| 7920 | ||
| cec5225b | 7921 | if (!elfNN_aarch64_allocate_local_symbols |
| a06ea964 NC |
7922 | (abfd, symtab_hdr->sh_info)) |
| 7923 | return FALSE; | |
| 7924 | ||
| cec5225b | 7925 | locals = elf_aarch64_locals (abfd); |
| a06ea964 NC |
7926 | BFD_ASSERT (r_symndx < symtab_hdr->sh_info); |
| 7927 | locals[r_symndx].got_refcount += 1; | |
| 7928 | old_got_type = locals[r_symndx].got_type; | |
| 7929 | } | |
| 7930 | ||
| 7931 | /* If a variable is accessed with both general dynamic TLS | |
| 7932 | methods, two slots may be created. */ | |
| 7933 | if (GOT_TLS_GD_ANY_P (old_got_type) && GOT_TLS_GD_ANY_P (got_type)) | |
| 7934 | got_type |= old_got_type; | |
| 7935 | ||
| 7936 | /* We will already have issued an error message if there | |
| 7937 | is a TLS/non-TLS mismatch, based on the symbol type. | |
| 7938 | So just combine any TLS types needed. */ | |
| 7939 | if (old_got_type != GOT_UNKNOWN && old_got_type != GOT_NORMAL | |
| 7940 | && got_type != GOT_NORMAL) | |
| 7941 | got_type |= old_got_type; | |
| 7942 | ||
| 7943 | /* If the symbol is accessed by both IE and GD methods, we | |
| 7944 | are able to relax. Turn off the GD flag, without | |
| 7945 | messing up with any other kind of TLS types that may be | |
| 7946 | involved. */ | |
| 7947 | if ((got_type & GOT_TLS_IE) && GOT_TLS_GD_ANY_P (got_type)) | |
| 7948 | got_type &= ~ (GOT_TLSDESC_GD | GOT_TLS_GD); | |
| 7949 | ||
| 7950 | if (old_got_type != got_type) | |
| 7951 | { | |
| 7952 | if (h != NULL) | |
| cec5225b | 7953 | elf_aarch64_hash_entry (h)->got_type = got_type; |
| a06ea964 NC |
7954 | else |
| 7955 | { | |
| 7956 | struct elf_aarch64_local_symbol *locals; | |
| cec5225b | 7957 | locals = elf_aarch64_locals (abfd); |
| a06ea964 NC |
7958 | BFD_ASSERT (r_symndx < symtab_hdr->sh_info); |
| 7959 | locals[r_symndx].got_type = got_type; | |
| 7960 | } | |
| 7961 | } | |
| 7962 | ||
| cc0efaa8 MS |
7963 | if (htab->root.dynobj == NULL) |
| 7964 | htab->root.dynobj = abfd; | |
| 7965 | if (! aarch64_elf_create_got_section (htab->root.dynobj, info)) | |
| 7966 | return FALSE; | |
| a06ea964 NC |
7967 | break; |
| 7968 | } | |
| 7969 | ||
| a6bb11b2 YZ |
7970 | case BFD_RELOC_AARCH64_CALL26: |
| 7971 | case BFD_RELOC_AARCH64_JUMP26: | |
| a06ea964 NC |
7972 | /* If this is a local symbol then we resolve it |
| 7973 | directly without creating a PLT entry. */ | |
| 7974 | if (h == NULL) | |
| 7975 | continue; | |
| 7976 | ||
| 7977 | h->needs_plt = 1; | |
| 1419bbe5 WN |
7978 | if (h->plt.refcount <= 0) |
| 7979 | h->plt.refcount = 1; | |
| 7980 | else | |
| 7981 | h->plt.refcount += 1; | |
| a06ea964 | 7982 | break; |
| a6bb11b2 YZ |
7983 | |
| 7984 | default: | |
| 7985 | break; | |
| a06ea964 NC |
7986 | } |
| 7987 | } | |
| a6bb11b2 | 7988 | |
| a06ea964 NC |
7989 | return TRUE; |
| 7990 | } | |
| 7991 | ||
| 7992 | /* Treat mapping symbols as special target symbols. */ | |
| 7993 | ||
| 7994 | static bfd_boolean | |
| cec5225b | 7995 | elfNN_aarch64_is_target_special_symbol (bfd *abfd ATTRIBUTE_UNUSED, |
| a06ea964 NC |
7996 | asymbol *sym) |
| 7997 | { | |
| 7998 | return bfd_is_aarch64_special_symbol_name (sym->name, | |
| 7999 | BFD_AARCH64_SPECIAL_SYM_TYPE_ANY); | |
| 8000 | } | |
| 8001 | ||
| 62e0492f | 8002 | /* This is a version of _bfd_elf_find_function() from dwarf2.c except that |
| a06ea964 NC |
8003 | AArch64 mapping symbols are ignored when looking for function names. */ |
| 8004 | ||
| 8005 | static bfd_boolean | |
| 62e0492f AL |
8006 | aarch64_elf_find_function (bfd * abfd, |
| 8007 | asymbol ** symbols, | |
| 8008 | asection * section, | |
| 8009 | bfd_vma offset, | |
| 8010 | const char ** filename_ptr, | |
| 8011 | const char ** functionname_ptr) | |
| a06ea964 NC |
8012 | { |
| 8013 | const char *filename = NULL; | |
| 8014 | asymbol *func = NULL; | |
| 8015 | bfd_vma low_func = 0; | |
| 8016 | asymbol **p; | |
| 8017 | ||
| 62e0492f AL |
8018 | if (symbols == NULL) |
| 8019 | return FALSE; | |
| 8020 | ||
| 8021 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
| 8022 | return FALSE; | |
| 8023 | ||
| a06ea964 NC |
8024 | for (p = symbols; *p != NULL; p++) |
| 8025 | { | |
| 8026 | elf_symbol_type *q; | |
| 8027 | ||
| 8028 | q = (elf_symbol_type *) * p; | |
| 8029 | ||
| 8030 | switch (ELF_ST_TYPE (q->internal_elf_sym.st_info)) | |
| 8031 | { | |
| 8032 | default: | |
| 8033 | break; | |
| 8034 | case STT_FILE: | |
| 8035 | filename = bfd_asymbol_name (&q->symbol); | |
| 8036 | break; | |
| 8037 | case STT_FUNC: | |
| 8038 | case STT_NOTYPE: | |
| 8039 | /* Skip mapping symbols. */ | |
| 8040 | if ((q->symbol.flags & BSF_LOCAL) | |
| 8041 | && (bfd_is_aarch64_special_symbol_name | |
| 8042 | (q->symbol.name, BFD_AARCH64_SPECIAL_SYM_TYPE_ANY))) | |
| 8043 | continue; | |
| 8044 | /* Fall through. */ | |
| 8045 | if (bfd_get_section (&q->symbol) == section | |
| 8046 | && q->symbol.value >= low_func && q->symbol.value <= offset) | |
| 8047 | { | |
| 8048 | func = (asymbol *) q; | |
| 8049 | low_func = q->symbol.value; | |
| 8050 | } | |
| 8051 | break; | |
| 8052 | } | |
| 8053 | } | |
| 8054 | ||
| 8055 | if (func == NULL) | |
| 8056 | return FALSE; | |
| 8057 | ||
| 8058 | if (filename_ptr) | |
| 8059 | *filename_ptr = filename; | |
| 8060 | if (functionname_ptr) | |
| 8061 | *functionname_ptr = bfd_asymbol_name (func); | |
| 8062 | ||
| 8063 | return TRUE; | |
| 8064 | } | |
| 8065 | ||
| 8066 | ||
| 8067 | /* Find the nearest line to a particular section and offset, for error | |
| 8068 | reporting. This code is a duplicate of the code in elf.c, except | |
| 8069 | that it uses aarch64_elf_find_function. */ | |
| 8070 | ||
| 8071 | static bfd_boolean | |
| cec5225b | 8072 | elfNN_aarch64_find_nearest_line (bfd *abfd, |
| a06ea964 | 8073 | asymbol **symbols, |
| fb167eb2 | 8074 | asection *section, |
| a06ea964 NC |
8075 | bfd_vma offset, |
| 8076 | const char **filename_ptr, | |
| 8077 | const char **functionname_ptr, | |
| fb167eb2 AM |
8078 | unsigned int *line_ptr, |
| 8079 | unsigned int *discriminator_ptr) | |
| a06ea964 NC |
8080 | { |
| 8081 | bfd_boolean found = FALSE; | |
| 8082 | ||
| fb167eb2 | 8083 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
| a06ea964 | 8084 | filename_ptr, functionname_ptr, |
| fb167eb2 | 8085 | line_ptr, discriminator_ptr, |
| 9defd221 | 8086 | dwarf_debug_sections, |
| a06ea964 NC |
8087 | &elf_tdata (abfd)->dwarf2_find_line_info)) |
| 8088 | { | |
| 8089 | if (!*functionname_ptr) | |
| fb167eb2 | 8090 | aarch64_elf_find_function (abfd, symbols, section, offset, |
| a06ea964 NC |
8091 | *filename_ptr ? NULL : filename_ptr, |
| 8092 | functionname_ptr); | |
| 8093 | ||
| 8094 | return TRUE; | |
| 8095 | } | |
| 8096 | ||
| fb167eb2 AM |
8097 | /* Skip _bfd_dwarf1_find_nearest_line since no known AArch64 |
| 8098 | toolchain uses DWARF1. */ | |
| 8099 | ||
| a06ea964 NC |
8100 | if (!_bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, |
| 8101 | &found, filename_ptr, | |
| 8102 | functionname_ptr, line_ptr, | |
| 8103 | &elf_tdata (abfd)->line_info)) | |
| 8104 | return FALSE; | |
| 8105 | ||
| 8106 | if (found && (*functionname_ptr || *line_ptr)) | |
| 8107 | return TRUE; | |
| 8108 | ||
| 8109 | if (symbols == NULL) | |
| 8110 | return FALSE; | |
| 8111 | ||
| fb167eb2 | 8112 | if (!aarch64_elf_find_function (abfd, symbols, section, offset, |
| a06ea964 NC |
8113 | filename_ptr, functionname_ptr)) |
| 8114 | return FALSE; | |
| 8115 | ||
| 8116 | *line_ptr = 0; | |
| 8117 | return TRUE; | |
| 8118 | } | |
| 8119 | ||
| 8120 | static bfd_boolean | |
| cec5225b | 8121 | elfNN_aarch64_find_inliner_info (bfd *abfd, |
| a06ea964 NC |
8122 | const char **filename_ptr, |
| 8123 | const char **functionname_ptr, | |
| 8124 | unsigned int *line_ptr) | |
| 8125 | { | |
| 8126 | bfd_boolean found; | |
| 8127 | found = _bfd_dwarf2_find_inliner_info | |
| 8128 | (abfd, filename_ptr, | |
| 8129 | functionname_ptr, line_ptr, &elf_tdata (abfd)->dwarf2_find_line_info); | |
| 8130 | return found; | |
| 8131 | } | |
| 8132 | ||
| 8133 | ||
| 8134 | static void | |
| cec5225b | 8135 | elfNN_aarch64_post_process_headers (bfd *abfd, |
| 1419bbe5 | 8136 | struct bfd_link_info *link_info) |
| a06ea964 NC |
8137 | { |
| 8138 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
| 8139 | ||
| 8140 | i_ehdrp = elf_elfheader (abfd); | |
| a06ea964 | 8141 | i_ehdrp->e_ident[EI_ABIVERSION] = AARCH64_ELF_ABI_VERSION; |
| 1419bbe5 | 8142 | |
| 78245035 | 8143 | _bfd_elf_post_process_headers (abfd, link_info); |
| a06ea964 NC |
8144 | } |
| 8145 | ||
| 8146 | static enum elf_reloc_type_class | |
| cec5225b | 8147 | elfNN_aarch64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
| 7e612e98 AM |
8148 | const asection *rel_sec ATTRIBUTE_UNUSED, |
| 8149 | const Elf_Internal_Rela *rela) | |
| a06ea964 | 8150 | { |
| f2e6a843 SN |
8151 | struct elf_aarch64_link_hash_table *htab = elf_aarch64_hash_table (info); |
| 8152 | ||
| 8153 | if (htab->root.dynsym != NULL | |
| 8154 | && htab->root.dynsym->contents != NULL) | |
| 8155 | { | |
| 8156 | /* Check relocation against STT_GNU_IFUNC symbol if there are | |
| 8157 | dynamic symbols. */ | |
| 8158 | bfd *abfd = info->output_bfd; | |
| 8159 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
| 8160 | unsigned long r_symndx = ELFNN_R_SYM (rela->r_info); | |
| 8161 | if (r_symndx != STN_UNDEF) | |
| 8162 | { | |
| 8163 | Elf_Internal_Sym sym; | |
| 8164 | if (!bed->s->swap_symbol_in (abfd, | |
| 8165 | (htab->root.dynsym->contents | |
| 8166 | + r_symndx * bed->s->sizeof_sym), | |
| 8167 | 0, &sym)) | |
| 8168 | { | |
| 8169 | /* xgettext:c-format */ | |
| 871b3ab2 | 8170 | _bfd_error_handler (_("%pB symbol number %lu references" |
| f2e6a843 SN |
8171 | " nonexistent SHT_SYMTAB_SHNDX section"), |
| 8172 | abfd, r_symndx); | |
| 8173 | /* Ideally an error class should be returned here. */ | |
| 8174 | } | |
| 8175 | else if (ELF_ST_TYPE (sym.st_info) == STT_GNU_IFUNC) | |
| 8176 | return reloc_class_ifunc; | |
| 8177 | } | |
| 8178 | } | |
| 8179 | ||
| cec5225b | 8180 | switch ((int) ELFNN_R_TYPE (rela->r_info)) |
| a06ea964 | 8181 | { |
| f2e6a843 SN |
8182 | case AARCH64_R (IRELATIVE): |
| 8183 | return reloc_class_ifunc; | |
| a6bb11b2 | 8184 | case AARCH64_R (RELATIVE): |
| a06ea964 | 8185 | return reloc_class_relative; |
| a6bb11b2 | 8186 | case AARCH64_R (JUMP_SLOT): |
| a06ea964 | 8187 | return reloc_class_plt; |
| a6bb11b2 | 8188 | case AARCH64_R (COPY): |
| a06ea964 NC |
8189 | return reloc_class_copy; |
| 8190 | default: | |
| 8191 | return reloc_class_normal; | |
| 8192 | } | |
| 8193 | } | |
| 8194 | ||
| a06ea964 NC |
8195 | /* Handle an AArch64 specific section when reading an object file. This is |
| 8196 | called when bfd_section_from_shdr finds a section with an unknown | |
| 8197 | type. */ | |
| 8198 | ||
| 8199 | static bfd_boolean | |
| cec5225b | 8200 | elfNN_aarch64_section_from_shdr (bfd *abfd, |
| a06ea964 NC |
8201 | Elf_Internal_Shdr *hdr, |
| 8202 | const char *name, int shindex) | |
| 8203 | { | |
| 8204 | /* There ought to be a place to keep ELF backend specific flags, but | |
| 8205 | at the moment there isn't one. We just keep track of the | |
| 8206 | sections by their name, instead. Fortunately, the ABI gives | |
| 8207 | names for all the AArch64 specific sections, so we will probably get | |
| 8208 | away with this. */ | |
| 8209 | switch (hdr->sh_type) | |
| 8210 | { | |
| 8211 | case SHT_AARCH64_ATTRIBUTES: | |
| 8212 | break; | |
| 8213 | ||
| 8214 | default: | |
| 8215 | return FALSE; | |
| 8216 | } | |
| 8217 | ||
| 8218 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
| 8219 | return FALSE; | |
| 8220 | ||
| 8221 | return TRUE; | |
| 8222 | } | |
| 8223 | ||
| 8224 | /* A structure used to record a list of sections, independently | |
| 8225 | of the next and prev fields in the asection structure. */ | |
| 8226 | typedef struct section_list | |
| 8227 | { | |
| 8228 | asection *sec; | |
| 8229 | struct section_list *next; | |
| 8230 | struct section_list *prev; | |
| 8231 | } | |
| 8232 | section_list; | |
| 8233 | ||
| 8234 | /* Unfortunately we need to keep a list of sections for which | |
| 8235 | an _aarch64_elf_section_data structure has been allocated. This | |
| cec5225b | 8236 | is because it is possible for functions like elfNN_aarch64_write_section |
| a06ea964 NC |
8237 | to be called on a section which has had an elf_data_structure |
| 8238 | allocated for it (and so the used_by_bfd field is valid) but | |
| 8239 | for which the AArch64 extended version of this structure - the | |
| 8240 | _aarch64_elf_section_data structure - has not been allocated. */ | |
| 8241 | static section_list *sections_with_aarch64_elf_section_data = NULL; | |
| 8242 | ||
| 8243 | static void | |
| 8244 | record_section_with_aarch64_elf_section_data (asection *sec) | |
| 8245 | { | |
| 8246 | struct section_list *entry; | |
| 8247 | ||
| 8248 | entry = bfd_malloc (sizeof (*entry)); | |
| 8249 | if (entry == NULL) | |
| 8250 | return; | |
| 8251 | entry->sec = sec; | |
| 8252 | entry->next = sections_with_aarch64_elf_section_data; | |
| 8253 | entry->prev = NULL; | |
| 8254 | if (entry->next != NULL) | |
| 8255 | entry->next->prev = entry; | |
| 8256 | sections_with_aarch64_elf_section_data = entry; | |
| 8257 | } | |
| 8258 | ||
| 8259 | static struct section_list * | |
| 8260 | find_aarch64_elf_section_entry (asection *sec) | |
| 8261 | { | |
| 8262 | struct section_list *entry; | |
| 8263 | static struct section_list *last_entry = NULL; | |
| 8264 | ||
| 8265 | /* This is a short cut for the typical case where the sections are added | |
| 8266 | to the sections_with_aarch64_elf_section_data list in forward order and | |
| 8267 | then looked up here in backwards order. This makes a real difference | |
| 8268 | to the ld-srec/sec64k.exp linker test. */ | |
| 8269 | entry = sections_with_aarch64_elf_section_data; | |
| 8270 | if (last_entry != NULL) | |
| 8271 | { | |
| 8272 | if (last_entry->sec == sec) | |
| 8273 | entry = last_entry; | |
| 8274 | else if (last_entry->next != NULL && last_entry->next->sec == sec) | |
| 8275 | entry = last_entry->next; | |
| 8276 | } | |
| 8277 | ||
| 8278 | for (; entry; entry = entry->next) | |
| 8279 | if (entry->sec == sec) | |
| 8280 | break; | |
| 8281 | ||
| 8282 | if (entry) | |
| 8283 | /* Record the entry prior to this one - it is the entry we are | |
| 8284 | most likely to want to locate next time. Also this way if we | |
| 8285 | have been called from | |
| 8286 | unrecord_section_with_aarch64_elf_section_data () we will not | |
| 8287 | be caching a pointer that is about to be freed. */ | |
| 8288 | last_entry = entry->prev; | |
| 8289 | ||
| 8290 | return entry; | |
| 8291 | } | |
| 8292 | ||
| 8293 | static void | |
| 8294 | unrecord_section_with_aarch64_elf_section_data (asection *sec) | |
| 8295 | { | |
| 8296 | struct section_list *entry; | |
| 8297 | ||
| 8298 | entry = find_aarch64_elf_section_entry (sec); | |
| 8299 | ||
| 8300 | if (entry) | |
| 8301 | { | |
| 8302 | if (entry->prev != NULL) | |
| 8303 | entry->prev->next = entry->next; | |
| 8304 | if (entry->next != NULL) | |
| 8305 | entry->next->prev = entry->prev; | |
| 8306 | if (entry == sections_with_aarch64_elf_section_data) | |
| 8307 | sections_with_aarch64_elf_section_data = entry->next; | |
| 8308 | free (entry); | |
| 8309 | } | |
| 8310 | } | |
| 8311 | ||
| 8312 | ||
| 8313 | typedef struct | |
| 8314 | { | |
| 8315 | void *finfo; | |
| 8316 | struct bfd_link_info *info; | |
| 8317 | asection *sec; | |
| 8318 | int sec_shndx; | |
| 8319 | int (*func) (void *, const char *, Elf_Internal_Sym *, | |
| 8320 | asection *, struct elf_link_hash_entry *); | |
| 8321 | } output_arch_syminfo; | |
| 8322 | ||
| 8323 | enum map_symbol_type | |
| 8324 | { | |
| 8325 | AARCH64_MAP_INSN, | |
| 8326 | AARCH64_MAP_DATA | |
| 8327 | }; | |
| 8328 | ||
| 8329 | ||
| 8330 | /* Output a single mapping symbol. */ | |
| 8331 | ||
| 8332 | static bfd_boolean | |
| cec5225b | 8333 | elfNN_aarch64_output_map_sym (output_arch_syminfo *osi, |
| a06ea964 NC |
8334 | enum map_symbol_type type, bfd_vma offset) |
| 8335 | { | |
| 8336 | static const char *names[2] = { "$x", "$d" }; | |
| 8337 | Elf_Internal_Sym sym; | |
| 8338 | ||
| 8339 | sym.st_value = (osi->sec->output_section->vma | |
| 8340 | + osi->sec->output_offset + offset); | |
| 8341 | sym.st_size = 0; | |
| 8342 | sym.st_other = 0; | |
| 8343 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE); | |
| 8344 | sym.st_shndx = osi->sec_shndx; | |
| 8345 | return osi->func (osi->finfo, names[type], &sym, osi->sec, NULL) == 1; | |
| 8346 | } | |
| 8347 | ||
| a06ea964 NC |
8348 | /* Output a single local symbol for a generated stub. */ |
| 8349 | ||
| 8350 | static bfd_boolean | |
| cec5225b | 8351 | elfNN_aarch64_output_stub_sym (output_arch_syminfo *osi, const char *name, |
| a06ea964 NC |
8352 | bfd_vma offset, bfd_vma size) |
| 8353 | { | |
| 8354 | Elf_Internal_Sym sym; | |
| 8355 | ||
| 8356 | sym.st_value = (osi->sec->output_section->vma | |
| 8357 | + osi->sec->output_offset + offset); | |
| 8358 | sym.st_size = size; | |
| 8359 | sym.st_other = 0; | |
| 8360 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FUNC); | |
| 8361 | sym.st_shndx = osi->sec_shndx; | |
| 8362 | return osi->func (osi->finfo, name, &sym, osi->sec, NULL) == 1; | |
| 8363 | } | |
| 8364 | ||
| 8365 | static bfd_boolean | |
| 8366 | aarch64_map_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) | |
| 8367 | { | |
| cec5225b | 8368 | struct elf_aarch64_stub_hash_entry *stub_entry; |
| a06ea964 NC |
8369 | asection *stub_sec; |
| 8370 | bfd_vma addr; | |
| 8371 | char *stub_name; | |
| 8372 | output_arch_syminfo *osi; | |
| 8373 | ||
| 8374 | /* Massage our args to the form they really have. */ | |
| cec5225b | 8375 | stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; |
| a06ea964 NC |
8376 | osi = (output_arch_syminfo *) in_arg; |
| 8377 | ||
| 8378 | stub_sec = stub_entry->stub_sec; | |
| 8379 | ||
| 8380 | /* Ensure this stub is attached to the current section being | |
| 8381 | processed. */ | |
| 8382 | if (stub_sec != osi->sec) | |
| 8383 | return TRUE; | |
| 8384 | ||
| 8385 | addr = (bfd_vma) stub_entry->stub_offset; | |
| 8386 | ||
| 8387 | stub_name = stub_entry->output_name; | |
| 8388 | ||
| 8389 | switch (stub_entry->stub_type) | |
| 8390 | { | |
| 8391 | case aarch64_stub_adrp_branch: | |
| cec5225b | 8392 | if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr, |
| a06ea964 NC |
8393 | sizeof (aarch64_adrp_branch_stub))) |
| 8394 | return FALSE; | |
| cec5225b | 8395 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) |
| a06ea964 NC |
8396 | return FALSE; |
| 8397 | break; | |
| 8398 | case aarch64_stub_long_branch: | |
| cec5225b | 8399 | if (!elfNN_aarch64_output_stub_sym |
| a06ea964 NC |
8400 | (osi, stub_name, addr, sizeof (aarch64_long_branch_stub))) |
| 8401 | return FALSE; | |
| cec5225b | 8402 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) |
| a06ea964 | 8403 | return FALSE; |
| cec5225b | 8404 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_DATA, addr + 16)) |
| a06ea964 NC |
8405 | return FALSE; |
| 8406 | break; | |
| 68fcca92 JW |
8407 | case aarch64_stub_erratum_835769_veneer: |
| 8408 | if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr, | |
| 8409 | sizeof (aarch64_erratum_835769_stub))) | |
| 8410 | return FALSE; | |
| 8411 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) | |
| 8412 | return FALSE; | |
| 8413 | break; | |
| 4106101c MS |
8414 | case aarch64_stub_erratum_843419_veneer: |
| 8415 | if (!elfNN_aarch64_output_stub_sym (osi, stub_name, addr, | |
| 8416 | sizeof (aarch64_erratum_843419_stub))) | |
| 8417 | return FALSE; | |
| 8418 | if (!elfNN_aarch64_output_map_sym (osi, AARCH64_MAP_INSN, addr)) | |
| 8419 | return FALSE; | |
| 8420 | break; | |
| 9fca35fc TC |
8421 | case aarch64_stub_none: |
| 8422 | break; | |
| 4106101c | 8423 | |
| a06ea964 | 8424 | default: |
| 8e2fe09f | 8425 | abort (); |
| a06ea964 NC |
8426 | } |
| 8427 | ||
| 8428 | return TRUE; | |
| 8429 | } | |
| 8430 | ||
| 8431 | /* Output mapping symbols for linker generated sections. */ | |
| 8432 | ||
| 8433 | static bfd_boolean | |
| cec5225b | 8434 | elfNN_aarch64_output_arch_local_syms (bfd *output_bfd, |
| a06ea964 NC |
8435 | struct bfd_link_info *info, |
| 8436 | void *finfo, | |
| 8437 | int (*func) (void *, const char *, | |
| 8438 | Elf_Internal_Sym *, | |
| 8439 | asection *, | |
| 8440 | struct elf_link_hash_entry | |
| 8441 | *)) | |
| 8442 | { | |
| 8443 | output_arch_syminfo osi; | |
| cec5225b | 8444 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 | 8445 | |
| cec5225b | 8446 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
8447 | |
| 8448 | osi.finfo = finfo; | |
| 8449 | osi.info = info; | |
| 8450 | osi.func = func; | |
| 8451 | ||
| 8452 | /* Long calls stubs. */ | |
| 8453 | if (htab->stub_bfd && htab->stub_bfd->sections) | |
| 8454 | { | |
| 8455 | asection *stub_sec; | |
| 8456 | ||
| 8457 | for (stub_sec = htab->stub_bfd->sections; | |
| 8458 | stub_sec != NULL; stub_sec = stub_sec->next) | |
| 8459 | { | |
| 8460 | /* Ignore non-stub sections. */ | |
| 8461 | if (!strstr (stub_sec->name, STUB_SUFFIX)) | |
| 8462 | continue; | |
| 8463 | ||
| 8464 | osi.sec = stub_sec; | |
| 8465 | ||
| 8466 | osi.sec_shndx = _bfd_elf_section_from_bfd_section | |
| 8467 | (output_bfd, osi.sec->output_section); | |
| 8468 | ||
| 61865519 MS |
8469 | /* The first instruction in a stub is always a branch. */ |
| 8470 | if (!elfNN_aarch64_output_map_sym (&osi, AARCH64_MAP_INSN, 0)) | |
| 8471 | return FALSE; | |
| 8472 | ||
| a06ea964 NC |
8473 | bfd_hash_traverse (&htab->stub_hash_table, aarch64_map_one_stub, |
| 8474 | &osi); | |
| 8475 | } | |
| 8476 | } | |
| 8477 | ||
| 8478 | /* Finally, output mapping symbols for the PLT. */ | |
| 8479 | if (!htab->root.splt || htab->root.splt->size == 0) | |
| 8480 | return TRUE; | |
| 8481 | ||
| a06ea964 NC |
8482 | osi.sec_shndx = _bfd_elf_section_from_bfd_section |
| 8483 | (output_bfd, htab->root.splt->output_section); | |
| 8484 | osi.sec = htab->root.splt; | |
| 8485 | ||
| 73524045 | 8486 | elfNN_aarch64_output_map_sym (&osi, AARCH64_MAP_INSN, 0); |
| a06ea964 NC |
8487 | |
| 8488 | return TRUE; | |
| 8489 | ||
| 8490 | } | |
| 8491 | ||
| 8492 | /* Allocate target specific section data. */ | |
| 8493 | ||
| 8494 | static bfd_boolean | |
| cec5225b | 8495 | elfNN_aarch64_new_section_hook (bfd *abfd, asection *sec) |
| a06ea964 NC |
8496 | { |
| 8497 | if (!sec->used_by_bfd) | |
| 8498 | { | |
| 8499 | _aarch64_elf_section_data *sdata; | |
| 8500 | bfd_size_type amt = sizeof (*sdata); | |
| 8501 | ||
| 8502 | sdata = bfd_zalloc (abfd, amt); | |
| 8503 | if (sdata == NULL) | |
| 8504 | return FALSE; | |
| 8505 | sec->used_by_bfd = sdata; | |
| 8506 | } | |
| 8507 | ||
| 8508 | record_section_with_aarch64_elf_section_data (sec); | |
| 8509 | ||
| 8510 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 8511 | } | |
| 8512 | ||
| 8513 | ||
| 8514 | static void | |
| 8515 | unrecord_section_via_map_over_sections (bfd *abfd ATTRIBUTE_UNUSED, | |
| 8516 | asection *sec, | |
| 8517 | void *ignore ATTRIBUTE_UNUSED) | |
| 8518 | { | |
| 8519 | unrecord_section_with_aarch64_elf_section_data (sec); | |
| 8520 | } | |
| 8521 | ||
| 8522 | static bfd_boolean | |
| cec5225b | 8523 | elfNN_aarch64_close_and_cleanup (bfd *abfd) |
| a06ea964 NC |
8524 | { |
| 8525 | if (abfd->sections) | |
| 8526 | bfd_map_over_sections (abfd, | |
| 8527 | unrecord_section_via_map_over_sections, NULL); | |
| 8528 | ||
| 8529 | return _bfd_elf_close_and_cleanup (abfd); | |
| 8530 | } | |
| 8531 | ||
| 8532 | static bfd_boolean | |
| cec5225b | 8533 | elfNN_aarch64_bfd_free_cached_info (bfd *abfd) |
| a06ea964 NC |
8534 | { |
| 8535 | if (abfd->sections) | |
| 8536 | bfd_map_over_sections (abfd, | |
| 8537 | unrecord_section_via_map_over_sections, NULL); | |
| 8538 | ||
| 8539 | return _bfd_free_cached_info (abfd); | |
| 8540 | } | |
| 8541 | ||
| a06ea964 NC |
8542 | /* Create dynamic sections. This is different from the ARM backend in that |
| 8543 | the got, plt, gotplt and their relocation sections are all created in the | |
| 8544 | standard part of the bfd elf backend. */ | |
| 8545 | ||
| 8546 | static bfd_boolean | |
| cec5225b | 8547 | elfNN_aarch64_create_dynamic_sections (bfd *dynobj, |
| a06ea964 NC |
8548 | struct bfd_link_info *info) |
| 8549 | { | |
| cc0efaa8 MS |
8550 | /* We need to create .got section. */ |
| 8551 | if (!aarch64_elf_create_got_section (dynobj, info)) | |
| 8552 | return FALSE; | |
| a06ea964 | 8553 | |
| 9d19e4fd | 8554 | return _bfd_elf_create_dynamic_sections (dynobj, info); |
| a06ea964 NC |
8555 | } |
| 8556 | ||
| 8557 | ||
| 8558 | /* Allocate space in .plt, .got and associated reloc sections for | |
| 8559 | dynamic relocs. */ | |
| 8560 | ||
| 8561 | static bfd_boolean | |
| cec5225b | 8562 | elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| a06ea964 NC |
8563 | { |
| 8564 | struct bfd_link_info *info; | |
| cec5225b YZ |
8565 | struct elf_aarch64_link_hash_table *htab; |
| 8566 | struct elf_aarch64_link_hash_entry *eh; | |
| a06ea964 NC |
8567 | struct elf_dyn_relocs *p; |
| 8568 | ||
| 8569 | /* An example of a bfd_link_hash_indirect symbol is versioned | |
| 8570 | symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect) | |
| 8571 | -> __gxx_personality_v0(bfd_link_hash_defined) | |
| 8572 | ||
| 8573 | There is no need to process bfd_link_hash_indirect symbols here | |
| 8574 | because we will also be presented with the concrete instance of | |
| cec5225b | 8575 | the symbol and elfNN_aarch64_copy_indirect_symbol () will have been |
| a06ea964 | 8576 | called to copy all relevant data from the generic to the concrete |
| 2d0ca824 | 8577 | symbol instance. */ |
| a06ea964 NC |
8578 | if (h->root.type == bfd_link_hash_indirect) |
| 8579 | return TRUE; | |
| 8580 | ||
| 8581 | if (h->root.type == bfd_link_hash_warning) | |
| 8582 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 8583 | ||
| 8584 | info = (struct bfd_link_info *) inf; | |
| cec5225b | 8585 | htab = elf_aarch64_hash_table (info); |
| a06ea964 | 8586 | |
| 1419bbe5 WN |
8587 | /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it |
| 8588 | here if it is defined and referenced in a non-shared object. */ | |
| 8589 | if (h->type == STT_GNU_IFUNC | |
| 8590 | && h->def_regular) | |
| 8591 | return TRUE; | |
| 8592 | else if (htab->root.dynamic_sections_created && h->plt.refcount > 0) | |
| a06ea964 NC |
8593 | { |
| 8594 | /* Make sure this symbol is output as a dynamic symbol. | |
| 07d6d2b8 | 8595 | Undefined weak syms won't yet be marked as dynamic. */ |
| ff07562f JW |
8596 | if (h->dynindx == -1 && !h->forced_local |
| 8597 | && h->root.type == bfd_link_hash_undefweak) | |
| a06ea964 NC |
8598 | { |
| 8599 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 8600 | return FALSE; | |
| 8601 | } | |
| 8602 | ||
| 0e1862bb | 8603 | if (bfd_link_pic (info) || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) |
| a06ea964 NC |
8604 | { |
| 8605 | asection *s = htab->root.splt; | |
| 8606 | ||
| 8607 | /* If this is the first .plt entry, make room for the special | |
| 8608 | first entry. */ | |
| 8609 | if (s->size == 0) | |
| 8610 | s->size += htab->plt_header_size; | |
| 8611 | ||
| 8612 | h->plt.offset = s->size; | |
| 8613 | ||
| 8614 | /* If this symbol is not defined in a regular file, and we are | |
| 8615 | not generating a shared library, then set the symbol to this | |
| 8616 | location in the .plt. This is required to make function | |
| 8617 | pointers compare as equal between the normal executable and | |
| 8618 | the shared library. */ | |
| 0e1862bb | 8619 | if (!bfd_link_pic (info) && !h->def_regular) |
| a06ea964 NC |
8620 | { |
| 8621 | h->root.u.def.section = s; | |
| 8622 | h->root.u.def.value = h->plt.offset; | |
| 8623 | } | |
| 8624 | ||
| 8625 | /* Make room for this entry. For now we only create the | |
| 8626 | small model PLT entries. We later need to find a way | |
| 8627 | of relaxing into these from the large model PLT entries. */ | |
| 37c18eed | 8628 | s->size += htab->plt_entry_size; |
| a06ea964 NC |
8629 | |
| 8630 | /* We also need to make an entry in the .got.plt section, which | |
| 8631 | will be placed in the .got section by the linker script. */ | |
| 8632 | htab->root.sgotplt->size += GOT_ENTRY_SIZE; | |
| 8633 | ||
| 8634 | /* We also need to make an entry in the .rela.plt section. */ | |
| 8635 | htab->root.srelplt->size += RELOC_SIZE (htab); | |
| 8636 | ||
| 8637 | /* We need to ensure that all GOT entries that serve the PLT | |
| 8638 | are consecutive with the special GOT slots [0] [1] and | |
| 8639 | [2]. Any addtional relocations, such as | |
| 8640 | R_AARCH64_TLSDESC, must be placed after the PLT related | |
| 8641 | entries. We abuse the reloc_count such that during | |
| 8642 | sizing we adjust reloc_count to indicate the number of | |
| 8643 | PLT related reserved entries. In subsequent phases when | |
| 8644 | filling in the contents of the reloc entries, PLT related | |
| 8645 | entries are placed by computing their PLT index (0 | |
| 8646 | .. reloc_count). While other none PLT relocs are placed | |
| 8647 | at the slot indicated by reloc_count and reloc_count is | |
| 8648 | updated. */ | |
| 8649 | ||
| 8650 | htab->root.srelplt->reloc_count++; | |
| 823710d5 SN |
8651 | |
| 8652 | /* Mark the DSO in case R_<CLS>_JUMP_SLOT relocs against | |
| 8653 | variant PCS symbols are present. */ | |
| 8654 | if (h->other & STO_AARCH64_VARIANT_PCS) | |
| 8655 | htab->variant_pcs = 1; | |
| 8656 | ||
| a06ea964 NC |
8657 | } |
| 8658 | else | |
| 8659 | { | |
| 8660 | h->plt.offset = (bfd_vma) - 1; | |
| 8661 | h->needs_plt = 0; | |
| 8662 | } | |
| 8663 | } | |
| 8664 | else | |
| 8665 | { | |
| 8666 | h->plt.offset = (bfd_vma) - 1; | |
| 8667 | h->needs_plt = 0; | |
| 8668 | } | |
| 8669 | ||
| cec5225b | 8670 | eh = (struct elf_aarch64_link_hash_entry *) h; |
| a06ea964 NC |
8671 | eh->tlsdesc_got_jump_table_offset = (bfd_vma) - 1; |
| 8672 | ||
| 8673 | if (h->got.refcount > 0) | |
| 8674 | { | |
| 8675 | bfd_boolean dyn; | |
| cec5225b | 8676 | unsigned got_type = elf_aarch64_hash_entry (h)->got_type; |
| a06ea964 NC |
8677 | |
| 8678 | h->got.offset = (bfd_vma) - 1; | |
| 8679 | ||
| 8680 | dyn = htab->root.dynamic_sections_created; | |
| 8681 | ||
| 8682 | /* Make sure this symbol is output as a dynamic symbol. | |
| 07d6d2b8 | 8683 | Undefined weak syms won't yet be marked as dynamic. */ |
| ff07562f JW |
8684 | if (dyn && h->dynindx == -1 && !h->forced_local |
| 8685 | && h->root.type == bfd_link_hash_undefweak) | |
| a06ea964 NC |
8686 | { |
| 8687 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 8688 | return FALSE; | |
| 8689 | } | |
| 8690 | ||
| 8691 | if (got_type == GOT_UNKNOWN) | |
| 8692 | { | |
| 8693 | } | |
| 8694 | else if (got_type == GOT_NORMAL) | |
| 8695 | { | |
| 8696 | h->got.offset = htab->root.sgot->size; | |
| 8697 | htab->root.sgot->size += GOT_ENTRY_SIZE; | |
| 8698 | if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 8699 | || h->root.type != bfd_link_hash_undefweak) | |
| 0e1862bb | 8700 | && (bfd_link_pic (info) |
| a377ae2a SN |
8701 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) |
| 8702 | /* Undefined weak symbol in static PIE resolves to 0 without | |
| 8703 | any dynamic relocations. */ | |
| 8704 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
| a06ea964 NC |
8705 | { |
| 8706 | htab->root.srelgot->size += RELOC_SIZE (htab); | |
| 8707 | } | |
| 8708 | } | |
| 8709 | else | |
| 8710 | { | |
| 8711 | int indx; | |
| 8712 | if (got_type & GOT_TLSDESC_GD) | |
| 8713 | { | |
| 8714 | eh->tlsdesc_got_jump_table_offset = | |
| 8715 | (htab->root.sgotplt->size | |
| 8716 | - aarch64_compute_jump_table_size (htab)); | |
| 8717 | htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2; | |
| 8718 | h->got.offset = (bfd_vma) - 2; | |
| 8719 | } | |
| 8720 | ||
| 8721 | if (got_type & GOT_TLS_GD) | |
| 8722 | { | |
| 8723 | h->got.offset = htab->root.sgot->size; | |
| 8724 | htab->root.sgot->size += GOT_ENTRY_SIZE * 2; | |
| 8725 | } | |
| 8726 | ||
| 8727 | if (got_type & GOT_TLS_IE) | |
| 8728 | { | |
| 8729 | h->got.offset = htab->root.sgot->size; | |
| 8730 | htab->root.sgot->size += GOT_ENTRY_SIZE; | |
| 8731 | } | |
| 8732 | ||
| 8733 | indx = h && h->dynindx != -1 ? h->dynindx : 0; | |
| 8734 | if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 8735 | || h->root.type != bfd_link_hash_undefweak) | |
| 6dda7875 | 8736 | && (!bfd_link_executable (info) |
| a06ea964 NC |
8737 | || indx != 0 |
| 8738 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) | |
| 8739 | { | |
| 8740 | if (got_type & GOT_TLSDESC_GD) | |
| 8741 | { | |
| 8742 | htab->root.srelplt->size += RELOC_SIZE (htab); | |
| 8743 | /* Note reloc_count not incremented here! We have | |
| 8744 | already adjusted reloc_count for this relocation | |
| 8745 | type. */ | |
| 8746 | ||
| 8747 | /* TLSDESC PLT is now needed, but not yet determined. */ | |
| 8748 | htab->tlsdesc_plt = (bfd_vma) - 1; | |
| 8749 | } | |
| 8750 | ||
| 8751 | if (got_type & GOT_TLS_GD) | |
| 8752 | htab->root.srelgot->size += RELOC_SIZE (htab) * 2; | |
| 8753 | ||
| 8754 | if (got_type & GOT_TLS_IE) | |
| 8755 | htab->root.srelgot->size += RELOC_SIZE (htab); | |
| 8756 | } | |
| 8757 | } | |
| 8758 | } | |
| 8759 | else | |
| 8760 | { | |
| 8761 | h->got.offset = (bfd_vma) - 1; | |
| 8762 | } | |
| 8763 | ||
| 8764 | if (eh->dyn_relocs == NULL) | |
| 8765 | return TRUE; | |
| 8766 | ||
| 8767 | /* In the shared -Bsymbolic case, discard space allocated for | |
| 8768 | dynamic pc-relative relocs against symbols which turn out to be | |
| 8769 | defined in regular objects. For the normal shared case, discard | |
| 8770 | space for pc-relative relocs that have become local due to symbol | |
| 8771 | visibility changes. */ | |
| 8772 | ||
| 0e1862bb | 8773 | if (bfd_link_pic (info)) |
| a06ea964 NC |
8774 | { |
| 8775 | /* Relocs that use pc_count are those that appear on a call | |
| 07d6d2b8 AM |
8776 | insn, or certain REL relocs that can generated via assembly. |
| 8777 | We want calls to protected symbols to resolve directly to the | |
| 8778 | function rather than going via the plt. If people want | |
| 8779 | function pointer comparisons to work as expected then they | |
| 8780 | should avoid writing weird assembly. */ | |
| a06ea964 NC |
8781 | if (SYMBOL_CALLS_LOCAL (info, h)) |
| 8782 | { | |
| 8783 | struct elf_dyn_relocs **pp; | |
| 8784 | ||
| 8785 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL;) | |
| 8786 | { | |
| 8787 | p->count -= p->pc_count; | |
| 8788 | p->pc_count = 0; | |
| 8789 | if (p->count == 0) | |
| 8790 | *pp = p->next; | |
| 8791 | else | |
| 8792 | pp = &p->next; | |
| 8793 | } | |
| 8794 | } | |
| 8795 | ||
| 8796 | /* Also discard relocs on undefined weak syms with non-default | |
| 07d6d2b8 | 8797 | visibility. */ |
| a06ea964 NC |
8798 | if (eh->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak) |
| 8799 | { | |
| ddb7fd0f L |
8800 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
| 8801 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
| a06ea964 NC |
8802 | eh->dyn_relocs = NULL; |
| 8803 | ||
| 8804 | /* Make sure undefined weak symbols are output as a dynamic | |
| 8805 | symbol in PIEs. */ | |
| 8806 | else if (h->dynindx == -1 | |
| 8807 | && !h->forced_local | |
| ff07562f | 8808 | && h->root.type == bfd_link_hash_undefweak |
| a06ea964 NC |
8809 | && !bfd_elf_link_record_dynamic_symbol (info, h)) |
| 8810 | return FALSE; | |
| 8811 | } | |
| 8812 | ||
| 8813 | } | |
| 8814 | else if (ELIMINATE_COPY_RELOCS) | |
| 8815 | { | |
| 8816 | /* For the non-shared case, discard space for relocs against | |
| 07d6d2b8 AM |
8817 | symbols which turn out to need copy relocs or are not |
| 8818 | dynamic. */ | |
| a06ea964 NC |
8819 | |
| 8820 | if (!h->non_got_ref | |
| 8821 | && ((h->def_dynamic | |
| 8822 | && !h->def_regular) | |
| 8823 | || (htab->root.dynamic_sections_created | |
| 8824 | && (h->root.type == bfd_link_hash_undefweak | |
| 8825 | || h->root.type == bfd_link_hash_undefined)))) | |
| 8826 | { | |
| 8827 | /* Make sure this symbol is output as a dynamic symbol. | |
| 8828 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 8829 | if (h->dynindx == -1 | |
| 8830 | && !h->forced_local | |
| ff07562f | 8831 | && h->root.type == bfd_link_hash_undefweak |
| a06ea964 NC |
8832 | && !bfd_elf_link_record_dynamic_symbol (info, h)) |
| 8833 | return FALSE; | |
| 8834 | ||
| 8835 | /* If that succeeded, we know we'll be keeping all the | |
| 8836 | relocs. */ | |
| 8837 | if (h->dynindx != -1) | |
| 8838 | goto keep; | |
| 8839 | } | |
| 8840 | ||
| 8841 | eh->dyn_relocs = NULL; | |
| 8842 | ||
| 8843 | keep:; | |
| 8844 | } | |
| 8845 | ||
| 8846 | /* Finally, allocate space. */ | |
| 8847 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 8848 | { | |
| 8849 | asection *sreloc; | |
| 8850 | ||
| 8851 | sreloc = elf_section_data (p->sec)->sreloc; | |
| 8852 | ||
| 8853 | BFD_ASSERT (sreloc != NULL); | |
| 8854 | ||
| 8855 | sreloc->size += p->count * RELOC_SIZE (htab); | |
| 8856 | } | |
| 8857 | ||
| 8858 | return TRUE; | |
| 8859 | } | |
| 8860 | ||
| 1419bbe5 WN |
8861 | /* Allocate space in .plt, .got and associated reloc sections for |
| 8862 | ifunc dynamic relocs. */ | |
| 8863 | ||
| 8864 | static bfd_boolean | |
| 8865 | elfNN_aarch64_allocate_ifunc_dynrelocs (struct elf_link_hash_entry *h, | |
| 8866 | void *inf) | |
| 8867 | { | |
| 8868 | struct bfd_link_info *info; | |
| 8869 | struct elf_aarch64_link_hash_table *htab; | |
| 8870 | struct elf_aarch64_link_hash_entry *eh; | |
| 8871 | ||
| 8872 | /* An example of a bfd_link_hash_indirect symbol is versioned | |
| 8873 | symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect) | |
| 8874 | -> __gxx_personality_v0(bfd_link_hash_defined) | |
| 8875 | ||
| 8876 | There is no need to process bfd_link_hash_indirect symbols here | |
| 8877 | because we will also be presented with the concrete instance of | |
| 8878 | the symbol and elfNN_aarch64_copy_indirect_symbol () will have been | |
| 8879 | called to copy all relevant data from the generic to the concrete | |
| 2d0ca824 | 8880 | symbol instance. */ |
| 1419bbe5 WN |
8881 | if (h->root.type == bfd_link_hash_indirect) |
| 8882 | return TRUE; | |
| 8883 | ||
| 8884 | if (h->root.type == bfd_link_hash_warning) | |
| 8885 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
| 8886 | ||
| 8887 | info = (struct bfd_link_info *) inf; | |
| 8888 | htab = elf_aarch64_hash_table (info); | |
| 8889 | ||
| 8890 | eh = (struct elf_aarch64_link_hash_entry *) h; | |
| 8891 | ||
| 8892 | /* Since STT_GNU_IFUNC symbol must go through PLT, we handle it | |
| 8893 | here if it is defined and referenced in a non-shared object. */ | |
| 8894 | if (h->type == STT_GNU_IFUNC | |
| 8895 | && h->def_regular) | |
| 8896 | return _bfd_elf_allocate_ifunc_dyn_relocs (info, h, | |
| 8897 | &eh->dyn_relocs, | |
| 2df3368d | 8898 | NULL, |
| 1419bbe5 WN |
8899 | htab->plt_entry_size, |
| 8900 | htab->plt_header_size, | |
| 233cc9c1 L |
8901 | GOT_ENTRY_SIZE, |
| 8902 | FALSE); | |
| 1419bbe5 WN |
8903 | return TRUE; |
| 8904 | } | |
| 8905 | ||
| 1419bbe5 WN |
8906 | /* Allocate space in .plt, .got and associated reloc sections for |
| 8907 | local ifunc dynamic relocs. */ | |
| 8908 | ||
| 8909 | static bfd_boolean | |
| 8910 | elfNN_aarch64_allocate_local_ifunc_dynrelocs (void **slot, void *inf) | |
| 8911 | { | |
| 8912 | struct elf_link_hash_entry *h | |
| 8913 | = (struct elf_link_hash_entry *) *slot; | |
| 8914 | ||
| 8915 | if (h->type != STT_GNU_IFUNC | |
| 8916 | || !h->def_regular | |
| 8917 | || !h->ref_regular | |
| 8918 | || !h->forced_local | |
| 8919 | || h->root.type != bfd_link_hash_defined) | |
| 8920 | abort (); | |
| 8921 | ||
| 8922 | return elfNN_aarch64_allocate_ifunc_dynrelocs (h, inf); | |
| 8923 | } | |
| a06ea964 | 8924 | |
| 63c1f59d AM |
8925 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
| 8926 | read-only sections. */ | |
| c2170589 JW |
8927 | |
| 8928 | static bfd_boolean | |
| 63c1f59d | 8929 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
| c2170589 | 8930 | { |
| 63c1f59d | 8931 | asection *sec; |
| c2170589 | 8932 | |
| 63c1f59d AM |
8933 | if (h->root.type == bfd_link_hash_indirect) |
| 8934 | return TRUE; | |
| c2170589 | 8935 | |
| 63c1f59d AM |
8936 | sec = readonly_dynrelocs (h); |
| 8937 | if (sec != NULL) | |
| 8938 | { | |
| 8939 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; | |
| c2170589 | 8940 | |
| 63c1f59d AM |
8941 | info->flags |= DF_TEXTREL; |
| 8942 | info->callbacks->minfo | |
| c1c8c1ef | 8943 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
| 63c1f59d | 8944 | sec->owner, h->root.root.string, sec); |
| c2170589 | 8945 | |
| 63c1f59d AM |
8946 | /* Not an error, just cut short the traversal. */ |
| 8947 | return FALSE; | |
| c2170589 JW |
8948 | } |
| 8949 | return TRUE; | |
| 8950 | } | |
| 8951 | ||
| a06ea964 NC |
8952 | /* This is the most important function of all . Innocuosly named |
| 8953 | though ! */ | |
| 2d0ca824 | 8954 | |
| a06ea964 | 8955 | static bfd_boolean |
| cec5225b | 8956 | elfNN_aarch64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
| a06ea964 NC |
8957 | struct bfd_link_info *info) |
| 8958 | { | |
| cec5225b | 8959 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 NC |
8960 | bfd *dynobj; |
| 8961 | asection *s; | |
| 8962 | bfd_boolean relocs; | |
| 8963 | bfd *ibfd; | |
| 8964 | ||
| cec5225b | 8965 | htab = elf_aarch64_hash_table ((info)); |
| a06ea964 NC |
8966 | dynobj = htab->root.dynobj; |
| 8967 | ||
| 8968 | BFD_ASSERT (dynobj != NULL); | |
| 8969 | ||
| 8970 | if (htab->root.dynamic_sections_created) | |
| 8971 | { | |
| 9b8b325a | 8972 | if (bfd_link_executable (info) && !info->nointerp) |
| a06ea964 NC |
8973 | { |
| 8974 | s = bfd_get_linker_section (dynobj, ".interp"); | |
| 8975 | if (s == NULL) | |
| 8976 | abort (); | |
| 8977 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
| 8978 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
| 8979 | } | |
| 8980 | } | |
| 8981 | ||
| 8982 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 8983 | relocs. */ | |
| c72f2fb2 | 8984 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| a06ea964 NC |
8985 | { |
| 8986 | struct elf_aarch64_local_symbol *locals = NULL; | |
| 8987 | Elf_Internal_Shdr *symtab_hdr; | |
| 8988 | asection *srel; | |
| 8989 | unsigned int i; | |
| 8990 | ||
| 8991 | if (!is_aarch64_elf (ibfd)) | |
| 8992 | continue; | |
| 8993 | ||
| 8994 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 8995 | { | |
| 8996 | struct elf_dyn_relocs *p; | |
| 8997 | ||
| 8998 | for (p = (struct elf_dyn_relocs *) | |
| 8999 | (elf_section_data (s)->local_dynrel); p != NULL; p = p->next) | |
| 9000 | { | |
| 9001 | if (!bfd_is_abs_section (p->sec) | |
| 9002 | && bfd_is_abs_section (p->sec->output_section)) | |
| 9003 | { | |
| 9004 | /* Input section has been discarded, either because | |
| 9005 | it is a copy of a linkonce section or due to | |
| 9006 | linker script /DISCARD/, so we'll be discarding | |
| 9007 | the relocs too. */ | |
| 9008 | } | |
| 9009 | else if (p->count != 0) | |
| 9010 | { | |
| 9011 | srel = elf_section_data (p->sec)->sreloc; | |
| 9012 | srel->size += p->count * RELOC_SIZE (htab); | |
| 9013 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
| 9014 | info->flags |= DF_TEXTREL; | |
| 9015 | } | |
| 9016 | } | |
| 9017 | } | |
| 9018 | ||
| cec5225b | 9019 | locals = elf_aarch64_locals (ibfd); |
| a06ea964 NC |
9020 | if (!locals) |
| 9021 | continue; | |
| 9022 | ||
| 9023 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 9024 | srel = htab->root.srelgot; | |
| 9025 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
| 9026 | { | |
| 9027 | locals[i].got_offset = (bfd_vma) - 1; | |
| 9028 | locals[i].tlsdesc_got_jump_table_offset = (bfd_vma) - 1; | |
| 9029 | if (locals[i].got_refcount > 0) | |
| 9030 | { | |
| 9031 | unsigned got_type = locals[i].got_type; | |
| 9032 | if (got_type & GOT_TLSDESC_GD) | |
| 9033 | { | |
| 9034 | locals[i].tlsdesc_got_jump_table_offset = | |
| 9035 | (htab->root.sgotplt->size | |
| 9036 | - aarch64_compute_jump_table_size (htab)); | |
| 9037 | htab->root.sgotplt->size += GOT_ENTRY_SIZE * 2; | |
| 9038 | locals[i].got_offset = (bfd_vma) - 2; | |
| 9039 | } | |
| 9040 | ||
| 9041 | if (got_type & GOT_TLS_GD) | |
| 9042 | { | |
| 9043 | locals[i].got_offset = htab->root.sgot->size; | |
| 9044 | htab->root.sgot->size += GOT_ENTRY_SIZE * 2; | |
| 9045 | } | |
| 9046 | ||
| b53b1bed JW |
9047 | if (got_type & GOT_TLS_IE |
| 9048 | || got_type & GOT_NORMAL) | |
| a06ea964 NC |
9049 | { |
| 9050 | locals[i].got_offset = htab->root.sgot->size; | |
| 9051 | htab->root.sgot->size += GOT_ENTRY_SIZE; | |
| 9052 | } | |
| 9053 | ||
| 9054 | if (got_type == GOT_UNKNOWN) | |
| 9055 | { | |
| 9056 | } | |
| 9057 | ||
| 0e1862bb | 9058 | if (bfd_link_pic (info)) |
| a06ea964 NC |
9059 | { |
| 9060 | if (got_type & GOT_TLSDESC_GD) | |
| 9061 | { | |
| 9062 | htab->root.srelplt->size += RELOC_SIZE (htab); | |
| 9063 | /* Note RELOC_COUNT not incremented here! */ | |
| 9064 | htab->tlsdesc_plt = (bfd_vma) - 1; | |
| 9065 | } | |
| 9066 | ||
| 9067 | if (got_type & GOT_TLS_GD) | |
| 9068 | htab->root.srelgot->size += RELOC_SIZE (htab) * 2; | |
| 9069 | ||
| b53b1bed JW |
9070 | if (got_type & GOT_TLS_IE |
| 9071 | || got_type & GOT_NORMAL) | |
| a06ea964 NC |
9072 | htab->root.srelgot->size += RELOC_SIZE (htab); |
| 9073 | } | |
| 9074 | } | |
| 9075 | else | |
| 9076 | { | |
| 9077 | locals[i].got_refcount = (bfd_vma) - 1; | |
| 9078 | } | |
| 9079 | } | |
| 9080 | } | |
| 9081 | ||
| 9082 | ||
| 9083 | /* Allocate global sym .plt and .got entries, and space for global | |
| 9084 | sym dynamic relocs. */ | |
| cec5225b | 9085 | elf_link_hash_traverse (&htab->root, elfNN_aarch64_allocate_dynrelocs, |
| a06ea964 NC |
9086 | info); |
| 9087 | ||
| 1419bbe5 WN |
9088 | /* Allocate global ifunc sym .plt and .got entries, and space for global |
| 9089 | ifunc sym dynamic relocs. */ | |
| 9090 | elf_link_hash_traverse (&htab->root, elfNN_aarch64_allocate_ifunc_dynrelocs, | |
| 9091 | info); | |
| 9092 | ||
| 1419bbe5 WN |
9093 | /* Allocate .plt and .got entries, and space for local ifunc symbols. */ |
| 9094 | htab_traverse (htab->loc_hash_table, | |
| 9095 | elfNN_aarch64_allocate_local_ifunc_dynrelocs, | |
| 9096 | info); | |
| a06ea964 NC |
9097 | |
| 9098 | /* For every jump slot reserved in the sgotplt, reloc_count is | |
| 9099 | incremented. However, when we reserve space for TLS descriptors, | |
| 9100 | it's not incremented, so in order to compute the space reserved | |
| 9101 | for them, it suffices to multiply the reloc count by the jump | |
| 9102 | slot size. */ | |
| 9103 | ||
| 9104 | if (htab->root.srelplt) | |
| 8847944f | 9105 | htab->sgotplt_jump_table_size = aarch64_compute_jump_table_size (htab); |
| a06ea964 NC |
9106 | |
| 9107 | if (htab->tlsdesc_plt) | |
| 9108 | { | |
| 9109 | if (htab->root.splt->size == 0) | |
| 37c18eed | 9110 | htab->root.splt->size += htab->plt_header_size; |
| a06ea964 | 9111 | |
| a06ea964 | 9112 | /* If we're not using lazy TLS relocations, don't generate the |
| ce12121b | 9113 | GOT and PLT entry required. */ |
| a06ea964 NC |
9114 | if (!(info->flags & DF_BIND_NOW)) |
| 9115 | { | |
| ce12121b TC |
9116 | htab->tlsdesc_plt = htab->root.splt->size; |
| 9117 | htab->root.splt->size += htab->tlsdesc_plt_entry_size; | |
| 9118 | ||
| a06ea964 NC |
9119 | htab->dt_tlsdesc_got = htab->root.sgot->size; |
| 9120 | htab->root.sgot->size += GOT_ENTRY_SIZE; | |
| 9121 | } | |
| 9122 | } | |
| 9123 | ||
| 68fcca92 | 9124 | /* Init mapping symbols information to use later to distingush between |
| 4106101c MS |
9125 | code and data while scanning for errata. */ |
| 9126 | if (htab->fix_erratum_835769 || htab->fix_erratum_843419) | |
| 68fcca92 JW |
9127 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 9128 | { | |
| 9129 | if (!is_aarch64_elf (ibfd)) | |
| 9130 | continue; | |
| 9131 | bfd_elfNN_aarch64_init_maps (ibfd); | |
| 9132 | } | |
| 9133 | ||
| a06ea964 NC |
9134 | /* We now have determined the sizes of the various dynamic sections. |
| 9135 | Allocate memory for them. */ | |
| 9136 | relocs = FALSE; | |
| 9137 | for (s = dynobj->sections; s != NULL; s = s->next) | |
| 9138 | { | |
| 9139 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 9140 | continue; | |
| 9141 | ||
| 9142 | if (s == htab->root.splt | |
| 9143 | || s == htab->root.sgot | |
| 9144 | || s == htab->root.sgotplt | |
| 9145 | || s == htab->root.iplt | |
| 9d19e4fd | 9146 | || s == htab->root.igotplt |
| 5474d94f AM |
9147 | || s == htab->root.sdynbss |
| 9148 | || s == htab->root.sdynrelro) | |
| a06ea964 NC |
9149 | { |
| 9150 | /* Strip this section if we don't need it; see the | |
| 9151 | comment below. */ | |
| 9152 | } | |
| 9153 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) | |
| 9154 | { | |
| 9155 | if (s->size != 0 && s != htab->root.srelplt) | |
| 9156 | relocs = TRUE; | |
| 9157 | ||
| 9158 | /* We use the reloc_count field as a counter if we need | |
| 9159 | to copy relocs into the output file. */ | |
| 9160 | if (s != htab->root.srelplt) | |
| 9161 | s->reloc_count = 0; | |
| 9162 | } | |
| 9163 | else | |
| 9164 | { | |
| 9165 | /* It's not one of our sections, so don't allocate space. */ | |
| 9166 | continue; | |
| 9167 | } | |
| 9168 | ||
| 9169 | if (s->size == 0) | |
| 9170 | { | |
| 9171 | /* If we don't need this section, strip it from the | |
| 9172 | output file. This is mostly to handle .rela.bss and | |
| 9173 | .rela.plt. We must create both sections in | |
| 9174 | create_dynamic_sections, because they must be created | |
| 9175 | before the linker maps input sections to output | |
| 9176 | sections. The linker does that before | |
| 9177 | adjust_dynamic_symbol is called, and it is that | |
| 9178 | function which decides whether anything needs to go | |
| 9179 | into these sections. */ | |
| a06ea964 NC |
9180 | s->flags |= SEC_EXCLUDE; |
| 9181 | continue; | |
| 9182 | } | |
| 9183 | ||
| 9184 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
| 9185 | continue; | |
| 9186 | ||
| 9187 | /* Allocate memory for the section contents. We use bfd_zalloc | |
| 07d6d2b8 AM |
9188 | here in case unused entries are not reclaimed before the |
| 9189 | section's contents are written out. This should not happen, | |
| 9190 | but this way if it does, we get a R_AARCH64_NONE reloc instead | |
| 9191 | of garbage. */ | |
| a06ea964 NC |
9192 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
| 9193 | if (s->contents == NULL) | |
| 9194 | return FALSE; | |
| 9195 | } | |
| 9196 | ||
| 9197 | if (htab->root.dynamic_sections_created) | |
| 9198 | { | |
| 9199 | /* Add some entries to the .dynamic section. We fill in the | |
| 07d6d2b8 AM |
9200 | values later, in elfNN_aarch64_finish_dynamic_sections, but we |
| 9201 | must add the entries now so that we get the correct size for | |
| 9202 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 9203 | dynamic linker and used by the debugger. */ | |
| a06ea964 NC |
9204 | #define add_dynamic_entry(TAG, VAL) \ |
| 9205 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
| 9206 | ||
| 0e1862bb | 9207 | if (bfd_link_executable (info)) |
| a06ea964 NC |
9208 | { |
| 9209 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
| 9210 | return FALSE; | |
| 9211 | } | |
| 9212 | ||
| 9213 | if (htab->root.splt->size != 0) | |
| 9214 | { | |
| 9215 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
| 9216 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 9217 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 9218 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
| 9219 | return FALSE; | |
| 9220 | ||
| 823710d5 SN |
9221 | if (htab->variant_pcs |
| 9222 | && !add_dynamic_entry (DT_AARCH64_VARIANT_PCS, 0)) | |
| 9223 | return FALSE; | |
| 9224 | ||
| a06ea964 | 9225 | if (htab->tlsdesc_plt |
| ce12121b | 9226 | && !(info->flags & DF_BIND_NOW) |
| a06ea964 NC |
9227 | && (!add_dynamic_entry (DT_TLSDESC_PLT, 0) |
| 9228 | || !add_dynamic_entry (DT_TLSDESC_GOT, 0))) | |
| 9229 | return FALSE; | |
| 37c18eed | 9230 | |
| 1dbade74 SD |
9231 | if ((elf_aarch64_tdata (output_bfd)->plt_type == PLT_BTI_PAC) |
| 9232 | && (!add_dynamic_entry (DT_AARCH64_BTI_PLT, 0) | |
| 9233 | || !add_dynamic_entry (DT_AARCH64_PAC_PLT, 0))) | |
| 9234 | return FALSE; | |
| 9235 | ||
| 9236 | else if ((elf_aarch64_tdata (output_bfd)->plt_type == PLT_BTI) | |
| 9237 | && !add_dynamic_entry (DT_AARCH64_BTI_PLT, 0)) | |
| 9238 | return FALSE; | |
| 9239 | ||
| 9240 | else if ((elf_aarch64_tdata (output_bfd)->plt_type == PLT_PAC) | |
| 9241 | && !add_dynamic_entry (DT_AARCH64_PAC_PLT, 0)) | |
| 37c18eed | 9242 | return FALSE; |
| a06ea964 NC |
9243 | } |
| 9244 | ||
| 9245 | if (relocs) | |
| 9246 | { | |
| 9247 | if (!add_dynamic_entry (DT_RELA, 0) | |
| 9248 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 9249 | || !add_dynamic_entry (DT_RELAENT, RELOC_SIZE (htab))) | |
| 9250 | return FALSE; | |
| 9251 | ||
| 9252 | /* If any dynamic relocs apply to a read-only section, | |
| 9253 | then we need a DT_TEXTREL entry. */ | |
| c2170589 | 9254 | if ((info->flags & DF_TEXTREL) == 0) |
| 63c1f59d | 9255 | elf_link_hash_traverse (&htab->root, maybe_set_textrel, info); |
| c2170589 | 9256 | |
| a06ea964 NC |
9257 | if ((info->flags & DF_TEXTREL) != 0) |
| 9258 | { | |
| 9259 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
| 9260 | return FALSE; | |
| 9261 | } | |
| 9262 | } | |
| 9263 | } | |
| 9264 | #undef add_dynamic_entry | |
| 9265 | ||
| 9266 | return TRUE; | |
| a06ea964 NC |
9267 | } |
| 9268 | ||
| 9269 | static inline void | |
| caed7120 YZ |
9270 | elf_aarch64_update_plt_entry (bfd *output_bfd, |
| 9271 | bfd_reloc_code_real_type r_type, | |
| 9272 | bfd_byte *plt_entry, bfd_vma value) | |
| a06ea964 | 9273 | { |
| caed7120 YZ |
9274 | reloc_howto_type *howto = elfNN_aarch64_howto_from_bfd_reloc (r_type); |
| 9275 | ||
| 1d75a8e2 NC |
9276 | /* FIXME: We should check the return value from this function call. */ |
| 9277 | (void) _bfd_aarch64_elf_put_addend (output_bfd, plt_entry, r_type, howto, value); | |
| a06ea964 NC |
9278 | } |
| 9279 | ||
| 9280 | static void | |
| cec5225b YZ |
9281 | elfNN_aarch64_create_small_pltn_entry (struct elf_link_hash_entry *h, |
| 9282 | struct elf_aarch64_link_hash_table | |
| 1419bbe5 WN |
9283 | *htab, bfd *output_bfd, |
| 9284 | struct bfd_link_info *info) | |
| a06ea964 NC |
9285 | { |
| 9286 | bfd_byte *plt_entry; | |
| 9287 | bfd_vma plt_index; | |
| 9288 | bfd_vma got_offset; | |
| 9289 | bfd_vma gotplt_entry_address; | |
| 9290 | bfd_vma plt_entry_address; | |
| 9291 | Elf_Internal_Rela rela; | |
| 9292 | bfd_byte *loc; | |
| 1419bbe5 WN |
9293 | asection *plt, *gotplt, *relplt; |
| 9294 | ||
| 9295 | /* When building a static executable, use .iplt, .igot.plt and | |
| 9296 | .rela.iplt sections for STT_GNU_IFUNC symbols. */ | |
| 9297 | if (htab->root.splt != NULL) | |
| 9298 | { | |
| 9299 | plt = htab->root.splt; | |
| 9300 | gotplt = htab->root.sgotplt; | |
| 9301 | relplt = htab->root.srelplt; | |
| 9302 | } | |
| 9303 | else | |
| 9304 | { | |
| 9305 | plt = htab->root.iplt; | |
| 9306 | gotplt = htab->root.igotplt; | |
| 9307 | relplt = htab->root.irelplt; | |
| 9308 | } | |
| 9309 | ||
| 9310 | /* Get the index in the procedure linkage table which | |
| 9311 | corresponds to this symbol. This is the index of this symbol | |
| 9312 | in all the symbols for which we are making plt entries. The | |
| 9313 | first entry in the procedure linkage table is reserved. | |
| a06ea964 | 9314 | |
| 1419bbe5 WN |
9315 | Get the offset into the .got table of the entry that |
| 9316 | corresponds to this function. Each .got entry is GOT_ENTRY_SIZE | |
| 9317 | bytes. The first three are reserved for the dynamic linker. | |
| 692e2b8b | 9318 | |
| 1419bbe5 WN |
9319 | For static executables, we don't reserve anything. */ |
| 9320 | ||
| 9321 | if (plt == htab->root.splt) | |
| 9322 | { | |
| 9323 | plt_index = (h->plt.offset - htab->plt_header_size) / htab->plt_entry_size; | |
| 9324 | got_offset = (plt_index + 3) * GOT_ENTRY_SIZE; | |
| 9325 | } | |
| 9326 | else | |
| 9327 | { | |
| 9328 | plt_index = h->plt.offset / htab->plt_entry_size; | |
| 9329 | got_offset = plt_index * GOT_ENTRY_SIZE; | |
| 9330 | } | |
| 9331 | ||
| 9332 | plt_entry = plt->contents + h->plt.offset; | |
| 9333 | plt_entry_address = plt->output_section->vma | |
| f44a1f8e | 9334 | + plt->output_offset + h->plt.offset; |
| 1419bbe5 WN |
9335 | gotplt_entry_address = gotplt->output_section->vma + |
| 9336 | gotplt->output_offset + got_offset; | |
| a06ea964 NC |
9337 | |
| 9338 | /* Copy in the boiler-plate for the PLTn entry. */ | |
| 37c18eed SD |
9339 | memcpy (plt_entry, htab->plt_entry, htab->plt_entry_size); |
| 9340 | ||
| 9341 | /* First instruction in BTI enabled PLT stub is a BTI | |
| 9342 | instruction so skip it. */ | |
| 9343 | if (elf_aarch64_tdata (output_bfd)->plt_type & PLT_BTI | |
| 9344 | && elf_elfheader (output_bfd)->e_type == ET_EXEC) | |
| 9345 | plt_entry = plt_entry + 4; | |
| a06ea964 NC |
9346 | |
| 9347 | /* Fill in the top 21 bits for this: ADRP x16, PLT_GOT + n * 8. | |
| 9348 | ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ | |
| caed7120 YZ |
9349 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADR_HI21_PCREL, |
| 9350 | plt_entry, | |
| 9351 | PG (gotplt_entry_address) - | |
| 9352 | PG (plt_entry_address)); | |
| a06ea964 NC |
9353 | |
| 9354 | /* Fill in the lo12 bits for the load from the pltgot. */ | |
| caed7120 YZ |
9355 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_LDSTNN_LO12, |
| 9356 | plt_entry + 4, | |
| 9357 | PG_OFFSET (gotplt_entry_address)); | |
| a06ea964 | 9358 | |
| 9aff4b7a | 9359 | /* Fill in the lo12 bits for the add from the pltgot entry. */ |
| caed7120 YZ |
9360 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADD_LO12, |
| 9361 | plt_entry + 8, | |
| 9362 | PG_OFFSET (gotplt_entry_address)); | |
| a06ea964 NC |
9363 | |
| 9364 | /* All the GOTPLT Entries are essentially initialized to PLT0. */ | |
| cec5225b | 9365 | bfd_put_NN (output_bfd, |
| 1419bbe5 WN |
9366 | plt->output_section->vma + plt->output_offset, |
| 9367 | gotplt->contents + got_offset); | |
| a06ea964 | 9368 | |
| a06ea964 | 9369 | rela.r_offset = gotplt_entry_address; |
| 1419bbe5 WN |
9370 | |
| 9371 | if (h->dynindx == -1 | |
| 0e1862bb | 9372 | || ((bfd_link_executable (info) |
| 1419bbe5 WN |
9373 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
| 9374 | && h->def_regular | |
| 9375 | && h->type == STT_GNU_IFUNC)) | |
| 9376 | { | |
| 9377 | /* If an STT_GNU_IFUNC symbol is locally defined, generate | |
| 9378 | R_AARCH64_IRELATIVE instead of R_AARCH64_JUMP_SLOT. */ | |
| 9379 | rela.r_info = ELFNN_R_INFO (0, AARCH64_R (IRELATIVE)); | |
| 9380 | rela.r_addend = (h->root.u.def.value | |
| 9381 | + h->root.u.def.section->output_section->vma | |
| 9382 | + h->root.u.def.section->output_offset); | |
| 9383 | } | |
| 9384 | else | |
| 9385 | { | |
| 9386 | /* Fill in the entry in the .rela.plt section. */ | |
| 9387 | rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (JUMP_SLOT)); | |
| 9388 | rela.r_addend = 0; | |
| 9389 | } | |
| a06ea964 NC |
9390 | |
| 9391 | /* Compute the relocation entry to used based on PLT index and do | |
| 9392 | not adjust reloc_count. The reloc_count has already been adjusted | |
| 9393 | to account for this entry. */ | |
| 1419bbe5 | 9394 | loc = relplt->contents + plt_index * RELOC_SIZE (htab); |
| cec5225b | 9395 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 NC |
9396 | } |
| 9397 | ||
| 9398 | /* Size sections even though they're not dynamic. We use it to setup | |
| 9399 | _TLS_MODULE_BASE_, if needed. */ | |
| 9400 | ||
| 9401 | static bfd_boolean | |
| cec5225b | 9402 | elfNN_aarch64_always_size_sections (bfd *output_bfd, |
| a06ea964 NC |
9403 | struct bfd_link_info *info) |
| 9404 | { | |
| 9405 | asection *tls_sec; | |
| 9406 | ||
| 0e1862bb | 9407 | if (bfd_link_relocatable (info)) |
| a06ea964 NC |
9408 | return TRUE; |
| 9409 | ||
| 9410 | tls_sec = elf_hash_table (info)->tls_sec; | |
| 9411 | ||
| 9412 | if (tls_sec) | |
| 9413 | { | |
| 9414 | struct elf_link_hash_entry *tlsbase; | |
| 9415 | ||
| 9416 | tlsbase = elf_link_hash_lookup (elf_hash_table (info), | |
| 9417 | "_TLS_MODULE_BASE_", TRUE, TRUE, FALSE); | |
| 9418 | ||
| 9419 | if (tlsbase) | |
| 9420 | { | |
| 9421 | struct bfd_link_hash_entry *h = NULL; | |
| 9422 | const struct elf_backend_data *bed = | |
| 9423 | get_elf_backend_data (output_bfd); | |
| 9424 | ||
| 9425 | if (!(_bfd_generic_link_add_one_symbol | |
| 9426 | (info, output_bfd, "_TLS_MODULE_BASE_", BSF_LOCAL, | |
| 9427 | tls_sec, 0, NULL, FALSE, bed->collect, &h))) | |
| 9428 | return FALSE; | |
| 9429 | ||
| 9430 | tlsbase->type = STT_TLS; | |
| 9431 | tlsbase = (struct elf_link_hash_entry *) h; | |
| 9432 | tlsbase->def_regular = 1; | |
| 9433 | tlsbase->other = STV_HIDDEN; | |
| 9434 | (*bed->elf_backend_hide_symbol) (info, tlsbase, TRUE); | |
| 9435 | } | |
| 9436 | } | |
| 9437 | ||
| 9438 | return TRUE; | |
| 9439 | } | |
| 9440 | ||
| 9441 | /* Finish up dynamic symbol handling. We set the contents of various | |
| 9442 | dynamic sections here. */ | |
| 2d0ca824 | 9443 | |
| a06ea964 | 9444 | static bfd_boolean |
| cec5225b | 9445 | elfNN_aarch64_finish_dynamic_symbol (bfd *output_bfd, |
| a06ea964 NC |
9446 | struct bfd_link_info *info, |
| 9447 | struct elf_link_hash_entry *h, | |
| 9448 | Elf_Internal_Sym *sym) | |
| 9449 | { | |
| cec5225b YZ |
9450 | struct elf_aarch64_link_hash_table *htab; |
| 9451 | htab = elf_aarch64_hash_table (info); | |
| a06ea964 NC |
9452 | |
| 9453 | if (h->plt.offset != (bfd_vma) - 1) | |
| 9454 | { | |
| 1419bbe5 WN |
9455 | asection *plt, *gotplt, *relplt; |
| 9456 | ||
| a06ea964 | 9457 | /* This symbol has an entry in the procedure linkage table. Set |
| 07d6d2b8 | 9458 | it up. */ |
| a06ea964 | 9459 | |
| 1419bbe5 WN |
9460 | /* When building a static executable, use .iplt, .igot.plt and |
| 9461 | .rela.iplt sections for STT_GNU_IFUNC symbols. */ | |
| 9462 | if (htab->root.splt != NULL) | |
| 9463 | { | |
| 9464 | plt = htab->root.splt; | |
| 9465 | gotplt = htab->root.sgotplt; | |
| 9466 | relplt = htab->root.srelplt; | |
| 9467 | } | |
| 9468 | else | |
| 9469 | { | |
| 9470 | plt = htab->root.iplt; | |
| 9471 | gotplt = htab->root.igotplt; | |
| 9472 | relplt = htab->root.irelplt; | |
| 9473 | } | |
| 9474 | ||
| 9475 | /* This symbol has an entry in the procedure linkage table. Set | |
| 9476 | it up. */ | |
| 9477 | if ((h->dynindx == -1 | |
| 0e1862bb | 9478 | && !((h->forced_local || bfd_link_executable (info)) |
| 1419bbe5 WN |
9479 | && h->def_regular |
| 9480 | && h->type == STT_GNU_IFUNC)) | |
| 9481 | || plt == NULL | |
| 9482 | || gotplt == NULL | |
| 9483 | || relplt == NULL) | |
| f955cccf | 9484 | return FALSE; |
| a06ea964 | 9485 | |
| 1419bbe5 | 9486 | elfNN_aarch64_create_small_pltn_entry (h, htab, output_bfd, info); |
| a06ea964 NC |
9487 | if (!h->def_regular) |
| 9488 | { | |
| 9489 | /* Mark the symbol as undefined, rather than as defined in | |
| 46b87d49 | 9490 | the .plt section. */ |
| a06ea964 | 9491 | sym->st_shndx = SHN_UNDEF; |
| 46b87d49 WN |
9492 | /* If the symbol is weak we need to clear the value. |
| 9493 | Otherwise, the PLT entry would provide a definition for | |
| 9494 | the symbol even if the symbol wasn't defined anywhere, | |
| 9495 | and so the symbol would never be NULL. Leave the value if | |
| 9496 | there were any relocations where pointer equality matters | |
| 9497 | (this is a clue for the dynamic linker, to make function | |
| 9498 | pointer comparisons work between an application and shared | |
| 9499 | library). */ | |
| 9500 | if (!h->ref_regular_nonweak || !h->pointer_equality_needed) | |
| 9501 | sym->st_value = 0; | |
| a06ea964 NC |
9502 | } |
| 9503 | } | |
| 9504 | ||
| 9505 | if (h->got.offset != (bfd_vma) - 1 | |
| a377ae2a SN |
9506 | && elf_aarch64_hash_entry (h)->got_type == GOT_NORMAL |
| 9507 | /* Undefined weak symbol in static PIE resolves to 0 without | |
| 9508 | any dynamic relocations. */ | |
| 9509 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
| a06ea964 NC |
9510 | { |
| 9511 | Elf_Internal_Rela rela; | |
| 9512 | bfd_byte *loc; | |
| 9513 | ||
| 9514 | /* This symbol has an entry in the global offset table. Set it | |
| 07d6d2b8 | 9515 | up. */ |
| a06ea964 NC |
9516 | if (htab->root.sgot == NULL || htab->root.srelgot == NULL) |
| 9517 | abort (); | |
| 9518 | ||
| 9519 | rela.r_offset = (htab->root.sgot->output_section->vma | |
| 9520 | + htab->root.sgot->output_offset | |
| 9521 | + (h->got.offset & ~(bfd_vma) 1)); | |
| 9522 | ||
| 49206388 WN |
9523 | if (h->def_regular |
| 9524 | && h->type == STT_GNU_IFUNC) | |
| 9525 | { | |
| 0e1862bb | 9526 | if (bfd_link_pic (info)) |
| 49206388 WN |
9527 | { |
| 9528 | /* Generate R_AARCH64_GLOB_DAT. */ | |
| 9529 | goto do_glob_dat; | |
| 9530 | } | |
| 9531 | else | |
| 9532 | { | |
| 9533 | asection *plt; | |
| 9534 | ||
| 9535 | if (!h->pointer_equality_needed) | |
| 9536 | abort (); | |
| 9537 | ||
| 9538 | /* For non-shared object, we can't use .got.plt, which | |
| 9539 | contains the real function address if we need pointer | |
| 9540 | equality. We load the GOT entry with the PLT entry. */ | |
| 9541 | plt = htab->root.splt ? htab->root.splt : htab->root.iplt; | |
| 9542 | bfd_put_NN (output_bfd, (plt->output_section->vma | |
| 9543 | + plt->output_offset | |
| 9544 | + h->plt.offset), | |
| 9545 | htab->root.sgot->contents | |
| 9546 | + (h->got.offset & ~(bfd_vma) 1)); | |
| 9547 | return TRUE; | |
| 9548 | } | |
| 9549 | } | |
| 0e1862bb | 9550 | else if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h)) |
| a06ea964 | 9551 | { |
| 0ee3a6db | 9552 | if (!(h->def_regular || ELF_COMMON_DEF_P (h))) |
| a06ea964 NC |
9553 | return FALSE; |
| 9554 | ||
| 9555 | BFD_ASSERT ((h->got.offset & 1) != 0); | |
| a6bb11b2 | 9556 | rela.r_info = ELFNN_R_INFO (0, AARCH64_R (RELATIVE)); |
| a06ea964 NC |
9557 | rela.r_addend = (h->root.u.def.value |
| 9558 | + h->root.u.def.section->output_section->vma | |
| 9559 | + h->root.u.def.section->output_offset); | |
| 9560 | } | |
| 9561 | else | |
| 9562 | { | |
| 49206388 | 9563 | do_glob_dat: |
| a06ea964 | 9564 | BFD_ASSERT ((h->got.offset & 1) == 0); |
| cec5225b | 9565 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| a06ea964 | 9566 | htab->root.sgot->contents + h->got.offset); |
| a6bb11b2 | 9567 | rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (GLOB_DAT)); |
| a06ea964 NC |
9568 | rela.r_addend = 0; |
| 9569 | } | |
| 9570 | ||
| 9571 | loc = htab->root.srelgot->contents; | |
| 9572 | loc += htab->root.srelgot->reloc_count++ * RELOC_SIZE (htab); | |
| cec5225b | 9573 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 NC |
9574 | } |
| 9575 | ||
| 9576 | if (h->needs_copy) | |
| 9577 | { | |
| 9578 | Elf_Internal_Rela rela; | |
| 5474d94f | 9579 | asection *s; |
| a06ea964 NC |
9580 | bfd_byte *loc; |
| 9581 | ||
| 9582 | /* This symbol needs a copy reloc. Set it up. */ | |
| a06ea964 NC |
9583 | if (h->dynindx == -1 |
| 9584 | || (h->root.type != bfd_link_hash_defined | |
| 9585 | && h->root.type != bfd_link_hash_defweak) | |
| 9d19e4fd | 9586 | || htab->root.srelbss == NULL) |
| a06ea964 NC |
9587 | abort (); |
| 9588 | ||
| 9589 | rela.r_offset = (h->root.u.def.value | |
| 9590 | + h->root.u.def.section->output_section->vma | |
| 9591 | + h->root.u.def.section->output_offset); | |
| a6bb11b2 | 9592 | rela.r_info = ELFNN_R_INFO (h->dynindx, AARCH64_R (COPY)); |
| a06ea964 | 9593 | rela.r_addend = 0; |
| afbf7e8e | 9594 | if (h->root.u.def.section == htab->root.sdynrelro) |
| 5474d94f AM |
9595 | s = htab->root.sreldynrelro; |
| 9596 | else | |
| 9597 | s = htab->root.srelbss; | |
| 9598 | loc = s->contents + s->reloc_count++ * RELOC_SIZE (htab); | |
| cec5225b | 9599 | bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc); |
| a06ea964 NC |
9600 | } |
| 9601 | ||
| 9602 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. SYM may | |
| 9603 | be NULL for local symbols. */ | |
| 9604 | if (sym != NULL | |
| 9637f6ef | 9605 | && (h == elf_hash_table (info)->hdynamic |
| a06ea964 NC |
9606 | || h == elf_hash_table (info)->hgot)) |
| 9607 | sym->st_shndx = SHN_ABS; | |
| 9608 | ||
| 9609 | return TRUE; | |
| 9610 | } | |
| 9611 | ||
| 1419bbe5 WN |
9612 | /* Finish up local dynamic symbol handling. We set the contents of |
| 9613 | various dynamic sections here. */ | |
| 9614 | ||
| 9615 | static bfd_boolean | |
| 9616 | elfNN_aarch64_finish_local_dynamic_symbol (void **slot, void *inf) | |
| 9617 | { | |
| 9618 | struct elf_link_hash_entry *h | |
| 9619 | = (struct elf_link_hash_entry *) *slot; | |
| 9620 | struct bfd_link_info *info | |
| 9621 | = (struct bfd_link_info *) inf; | |
| 9622 | ||
| 9623 | return elfNN_aarch64_finish_dynamic_symbol (info->output_bfd, | |
| 9624 | info, h, NULL); | |
| 9625 | } | |
| 9626 | ||
| a06ea964 | 9627 | static void |
| cec5225b YZ |
9628 | elfNN_aarch64_init_small_plt0_entry (bfd *output_bfd ATTRIBUTE_UNUSED, |
| 9629 | struct elf_aarch64_link_hash_table | |
| a06ea964 NC |
9630 | *htab) |
| 9631 | { | |
| 9632 | /* Fill in PLT0. Fixme:RR Note this doesn't distinguish between | |
| 9633 | small and large plts and at the minute just generates | |
| 9634 | the small PLT. */ | |
| 9635 | ||
| cec5225b | 9636 | /* PLT0 of the small PLT looks like this in ELF64 - |
| a06ea964 NC |
9637 | stp x16, x30, [sp, #-16]! // Save the reloc and lr on stack. |
| 9638 | adrp x16, PLT_GOT + 16 // Get the page base of the GOTPLT | |
| 9639 | ldr x17, [x16, #:lo12:PLT_GOT+16] // Load the address of the | |
| 9640 | // symbol resolver | |
| 9641 | add x16, x16, #:lo12:PLT_GOT+16 // Load the lo12 bits of the | |
| 9642 | // GOTPLT entry for this. | |
| 9643 | br x17 | |
| cec5225b | 9644 | PLT0 will be slightly different in ELF32 due to different got entry |
| 2d0ca824 | 9645 | size. */ |
| caed7120 | 9646 | bfd_vma plt_got_2nd_ent; /* Address of GOT[2]. */ |
| a06ea964 NC |
9647 | bfd_vma plt_base; |
| 9648 | ||
| 9649 | ||
| 37c18eed SD |
9650 | memcpy (htab->root.splt->contents, htab->plt0_entry, |
| 9651 | htab->plt_header_size); | |
| a06ea964 | 9652 | elf_section_data (htab->root.splt->output_section)->this_hdr.sh_entsize = |
| 37c18eed | 9653 | htab->plt_header_size; |
| a06ea964 | 9654 | |
| caed7120 YZ |
9655 | plt_got_2nd_ent = (htab->root.sgotplt->output_section->vma |
| 9656 | + htab->root.sgotplt->output_offset | |
| 9657 | + GOT_ENTRY_SIZE * 2); | |
| a06ea964 NC |
9658 | |
| 9659 | plt_base = htab->root.splt->output_section->vma + | |
| f44a1f8e | 9660 | htab->root.splt->output_offset; |
| a06ea964 | 9661 | |
| 37c18eed SD |
9662 | /* First instruction in BTI enabled PLT stub is a BTI |
| 9663 | instruction so skip it. */ | |
| 9664 | bfd_byte *plt0_entry = htab->root.splt->contents; | |
| 9665 | if (elf_aarch64_tdata (output_bfd)->plt_type & PLT_BTI) | |
| 9666 | plt0_entry = plt0_entry + 4; | |
| 9667 | ||
| a06ea964 NC |
9668 | /* Fill in the top 21 bits for this: ADRP x16, PLT_GOT + n * 8. |
| 9669 | ADRP: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ | |
| caed7120 | 9670 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADR_HI21_PCREL, |
| 37c18eed | 9671 | plt0_entry + 4, |
| caed7120 | 9672 | PG (plt_got_2nd_ent) - PG (plt_base + 4)); |
| a06ea964 | 9673 | |
| caed7120 | 9674 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_LDSTNN_LO12, |
| 37c18eed | 9675 | plt0_entry + 8, |
| caed7120 | 9676 | PG_OFFSET (plt_got_2nd_ent)); |
| a06ea964 | 9677 | |
| caed7120 | 9678 | elf_aarch64_update_plt_entry (output_bfd, BFD_RELOC_AARCH64_ADD_LO12, |
| 37c18eed | 9679 | plt0_entry + 12, |
| caed7120 | 9680 | PG_OFFSET (plt_got_2nd_ent)); |
| a06ea964 NC |
9681 | } |
| 9682 | ||
| 9683 | static bfd_boolean | |
| cec5225b | 9684 | elfNN_aarch64_finish_dynamic_sections (bfd *output_bfd, |
| a06ea964 NC |
9685 | struct bfd_link_info *info) |
| 9686 | { | |
| cec5225b | 9687 | struct elf_aarch64_link_hash_table *htab; |
| a06ea964 NC |
9688 | bfd *dynobj; |
| 9689 | asection *sdyn; | |
| 9690 | ||
| cec5225b | 9691 | htab = elf_aarch64_hash_table (info); |
| a06ea964 NC |
9692 | dynobj = htab->root.dynobj; |
| 9693 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); | |
| 9694 | ||
| 9695 | if (htab->root.dynamic_sections_created) | |
| 9696 | { | |
| cec5225b | 9697 | ElfNN_External_Dyn *dyncon, *dynconend; |
| a06ea964 NC |
9698 | |
| 9699 | if (sdyn == NULL || htab->root.sgot == NULL) | |
| 9700 | abort (); | |
| 9701 | ||
| cec5225b YZ |
9702 | dyncon = (ElfNN_External_Dyn *) sdyn->contents; |
| 9703 | dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size); | |
| a06ea964 NC |
9704 | for (; dyncon < dynconend; dyncon++) |
| 9705 | { | |
| 9706 | Elf_Internal_Dyn dyn; | |
| 9707 | asection *s; | |
| 9708 | ||
| cec5225b | 9709 | bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn); |
| a06ea964 NC |
9710 | |
| 9711 | switch (dyn.d_tag) | |
| 9712 | { | |
| 9713 | default: | |
| 9714 | continue; | |
| 9715 | ||
| 9716 | case DT_PLTGOT: | |
| 9717 | s = htab->root.sgotplt; | |
| 9718 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
| 9719 | break; | |
| 9720 | ||
| 9721 | case DT_JMPREL: | |
| 4ade44b7 AM |
9722 | s = htab->root.srelplt; |
| 9723 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
| a06ea964 NC |
9724 | break; |
| 9725 | ||
| 9726 | case DT_PLTRELSZ: | |
| c955de36 | 9727 | s = htab->root.srelplt; |
| a06ea964 NC |
9728 | dyn.d_un.d_val = s->size; |
| 9729 | break; | |
| 9730 | ||
| a06ea964 NC |
9731 | case DT_TLSDESC_PLT: |
| 9732 | s = htab->root.splt; | |
| 9733 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset | |
| 9734 | + htab->tlsdesc_plt; | |
| 9735 | break; | |
| 9736 | ||
| 9737 | case DT_TLSDESC_GOT: | |
| 9738 | s = htab->root.sgot; | |
| ce12121b | 9739 | BFD_ASSERT (htab->dt_tlsdesc_got != (bfd_vma)-1); |
| a06ea964 NC |
9740 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset |
| 9741 | + htab->dt_tlsdesc_got; | |
| 9742 | break; | |
| 9743 | } | |
| 9744 | ||
| cec5225b | 9745 | bfd_elfNN_swap_dyn_out (output_bfd, &dyn, dyncon); |
| a06ea964 NC |
9746 | } |
| 9747 | ||
| 9748 | } | |
| 9749 | ||
| 9750 | /* Fill in the special first entry in the procedure linkage table. */ | |
| 9751 | if (htab->root.splt && htab->root.splt->size > 0) | |
| 9752 | { | |
| cec5225b | 9753 | elfNN_aarch64_init_small_plt0_entry (output_bfd, htab); |
| a06ea964 NC |
9754 | |
| 9755 | elf_section_data (htab->root.splt->output_section)-> | |
| 9756 | this_hdr.sh_entsize = htab->plt_entry_size; | |
| 9757 | ||
| 9758 | ||
| ce12121b | 9759 | if (htab->tlsdesc_plt && !(info->flags & DF_BIND_NOW)) |
| a06ea964 | 9760 | { |
| ce12121b | 9761 | BFD_ASSERT (htab->dt_tlsdesc_got != (bfd_vma)-1); |
| cec5225b | 9762 | bfd_put_NN (output_bfd, (bfd_vma) 0, |
| a06ea964 NC |
9763 | htab->root.sgot->contents + htab->dt_tlsdesc_got); |
| 9764 | ||
| 37c18eed SD |
9765 | const bfd_byte *entry = elfNN_aarch64_tlsdesc_small_plt_entry; |
| 9766 | htab->tlsdesc_plt_entry_size = PLT_TLSDESC_ENTRY_SIZE; | |
| 9767 | ||
| 9768 | aarch64_plt_type type = elf_aarch64_tdata (output_bfd)->plt_type; | |
| 1dbade74 | 9769 | if (type == PLT_BTI || type == PLT_BTI_PAC) |
| 37c18eed SD |
9770 | { |
| 9771 | entry = elfNN_aarch64_tlsdesc_small_plt_bti_entry; | |
| 37c18eed SD |
9772 | } |
| 9773 | ||
| a06ea964 | 9774 | memcpy (htab->root.splt->contents + htab->tlsdesc_plt, |
| 37c18eed | 9775 | entry, htab->tlsdesc_plt_entry_size); |
| a06ea964 NC |
9776 | |
| 9777 | { | |
| 9778 | bfd_vma adrp1_addr = | |
| 9779 | htab->root.splt->output_section->vma | |
| 9780 | + htab->root.splt->output_offset + htab->tlsdesc_plt + 4; | |
| 9781 | ||
| caed7120 | 9782 | bfd_vma adrp2_addr = adrp1_addr + 4; |
| a06ea964 NC |
9783 | |
| 9784 | bfd_vma got_addr = | |
| 9785 | htab->root.sgot->output_section->vma | |
| 9786 | + htab->root.sgot->output_offset; | |
| 9787 | ||
| 9788 | bfd_vma pltgot_addr = | |
| 9789 | htab->root.sgotplt->output_section->vma | |
| 9790 | + htab->root.sgotplt->output_offset; | |
| 9791 | ||
| 9792 | bfd_vma dt_tlsdesc_got = got_addr + htab->dt_tlsdesc_got; | |
| caed7120 YZ |
9793 | |
| 9794 | bfd_byte *plt_entry = | |
| 9795 | htab->root.splt->contents + htab->tlsdesc_plt; | |
| a06ea964 | 9796 | |
| 37c18eed SD |
9797 | /* First instruction in BTI enabled PLT stub is a BTI |
| 9798 | instruction so skip it. */ | |
| 9799 | if (type & PLT_BTI) | |
| 9800 | { | |
| 9801 | plt_entry = plt_entry + 4; | |
| 9802 | adrp1_addr = adrp1_addr + 4; | |
| 9803 | adrp2_addr = adrp2_addr + 4; | |
| 9804 | } | |
| 9805 | ||
| a06ea964 | 9806 | /* adrp x2, DT_TLSDESC_GOT */ |
| caed7120 YZ |
9807 | elf_aarch64_update_plt_entry (output_bfd, |
| 9808 | BFD_RELOC_AARCH64_ADR_HI21_PCREL, | |
| 9809 | plt_entry + 4, | |
| 9810 | (PG (dt_tlsdesc_got) | |
| 9811 | - PG (adrp1_addr))); | |
| a06ea964 NC |
9812 | |
| 9813 | /* adrp x3, 0 */ | |
| caed7120 YZ |
9814 | elf_aarch64_update_plt_entry (output_bfd, |
| 9815 | BFD_RELOC_AARCH64_ADR_HI21_PCREL, | |
| 9816 | plt_entry + 8, | |
| 9817 | (PG (pltgot_addr) | |
| 9818 | - PG (adrp2_addr))); | |
| a06ea964 NC |
9819 | |
| 9820 | /* ldr x2, [x2, #0] */ | |
| caed7120 YZ |
9821 | elf_aarch64_update_plt_entry (output_bfd, |
| 9822 | BFD_RELOC_AARCH64_LDSTNN_LO12, | |
| 9823 | plt_entry + 12, | |
| 9824 | PG_OFFSET (dt_tlsdesc_got)); | |
| a06ea964 NC |
9825 | |
| 9826 | /* add x3, x3, 0 */ | |
| caed7120 YZ |
9827 | elf_aarch64_update_plt_entry (output_bfd, |
| 9828 | BFD_RELOC_AARCH64_ADD_LO12, | |
| 9829 | plt_entry + 16, | |
| 9830 | PG_OFFSET (pltgot_addr)); | |
| a06ea964 NC |
9831 | } |
| 9832 | } | |
| 9833 | } | |
| 9834 | ||
| 9835 | if (htab->root.sgotplt) | |
| 9836 | { | |
| 9837 | if (bfd_is_abs_section (htab->root.sgotplt->output_section)) | |
| 9838 | { | |
| 4eca0228 | 9839 | _bfd_error_handler |
| 871b3ab2 | 9840 | (_("discarded output section: `%pA'"), htab->root.sgotplt); |
| a06ea964 NC |
9841 | return FALSE; |
| 9842 | } | |
| 9843 | ||
| 9844 | /* Fill in the first three entries in the global offset table. */ | |
| 9845 | if (htab->root.sgotplt->size > 0) | |
| 9846 | { | |
| 8db339a6 MS |
9847 | bfd_put_NN (output_bfd, (bfd_vma) 0, htab->root.sgotplt->contents); |
| 9848 | ||
| a06ea964 | 9849 | /* Write GOT[1] and GOT[2], needed for the dynamic linker. */ |
| cec5225b | 9850 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
9851 | (bfd_vma) 0, |
| 9852 | htab->root.sgotplt->contents + GOT_ENTRY_SIZE); | |
| cec5225b | 9853 | bfd_put_NN (output_bfd, |
| a06ea964 NC |
9854 | (bfd_vma) 0, |
| 9855 | htab->root.sgotplt->contents + GOT_ENTRY_SIZE * 2); | |
| 9856 | } | |
| 9857 | ||
| 8db339a6 MS |
9858 | if (htab->root.sgot) |
| 9859 | { | |
| 9860 | if (htab->root.sgot->size > 0) | |
| 9861 | { | |
| 9862 | bfd_vma addr = | |
| 9863 | sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0; | |
| 9864 | bfd_put_NN (output_bfd, addr, htab->root.sgot->contents); | |
| 9865 | } | |
| 9866 | } | |
| 9867 | ||
| a06ea964 NC |
9868 | elf_section_data (htab->root.sgotplt->output_section)-> |
| 9869 | this_hdr.sh_entsize = GOT_ENTRY_SIZE; | |
| 9870 | } | |
| 9871 | ||
| 9872 | if (htab->root.sgot && htab->root.sgot->size > 0) | |
| 9873 | elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize | |
| 9874 | = GOT_ENTRY_SIZE; | |
| 9875 | ||
| 1419bbe5 WN |
9876 | /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */ |
| 9877 | htab_traverse (htab->loc_hash_table, | |
| 9878 | elfNN_aarch64_finish_local_dynamic_symbol, | |
| 9879 | info); | |
| 9880 | ||
| a06ea964 NC |
9881 | return TRUE; |
| 9882 | } | |
| 9883 | ||
| 37c18eed SD |
9884 | /* Check if BTI enabled PLTs are needed. Returns the type needed. */ |
| 9885 | static aarch64_plt_type | |
| 9886 | get_plt_type (bfd *abfd) | |
| 9887 | { | |
| 9888 | aarch64_plt_type ret = PLT_NORMAL; | |
| 9889 | bfd_byte *contents, *extdyn, *extdynend; | |
| 9890 | asection *sec = bfd_get_section_by_name (abfd, ".dynamic"); | |
| 9891 | if (!sec || !bfd_malloc_and_get_section (abfd, sec, &contents)) | |
| 9892 | return ret; | |
| 9893 | extdyn = contents; | |
| 9894 | extdynend = contents + sec->size; | |
| 9895 | for (; extdyn < extdynend; extdyn += sizeof (ElfNN_External_Dyn)) | |
| 9896 | { | |
| 9897 | Elf_Internal_Dyn dyn; | |
| 9898 | bfd_elfNN_swap_dyn_in (abfd, extdyn, &dyn); | |
| 9899 | ||
| 9900 | /* Let's check the processor specific dynamic array tags. */ | |
| 9901 | bfd_vma tag = dyn.d_tag; | |
| 9902 | if (tag < DT_LOPROC || tag > DT_HIPROC) | |
| 9903 | continue; | |
| 9904 | ||
| 9905 | switch (tag) | |
| 9906 | { | |
| 9907 | case DT_AARCH64_BTI_PLT: | |
| 1dbade74 SD |
9908 | ret |= PLT_BTI; |
| 9909 | break; | |
| 9910 | ||
| 9911 | case DT_AARCH64_PAC_PLT: | |
| 9912 | ret |= PLT_PAC; | |
| 37c18eed SD |
9913 | break; |
| 9914 | ||
| 9915 | default: break; | |
| 9916 | } | |
| 9917 | } | |
| 9918 | free (contents); | |
| 9919 | return ret; | |
| 9920 | } | |
| 9921 | ||
| 9922 | static long | |
| 9923 | elfNN_aarch64_get_synthetic_symtab (bfd *abfd, | |
| 9924 | long symcount, | |
| 9925 | asymbol **syms, | |
| 9926 | long dynsymcount, | |
| 9927 | asymbol **dynsyms, | |
| 9928 | asymbol **ret) | |
| 9929 | { | |
| 9930 | elf_aarch64_tdata (abfd)->plt_type = get_plt_type (abfd); | |
| 9931 | return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms, | |
| 9932 | dynsymcount, dynsyms, ret); | |
| 9933 | } | |
| 9934 | ||
| a06ea964 NC |
9935 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
| 9936 | or (bfd_vma) -1 if it should not be included. */ | |
| 9937 | ||
| 9938 | static bfd_vma | |
| cec5225b | 9939 | elfNN_aarch64_plt_sym_val (bfd_vma i, const asection *plt, |
| a06ea964 NC |
9940 | const arelent *rel ATTRIBUTE_UNUSED) |
| 9941 | { | |
| 37c18eed SD |
9942 | size_t plt0_size = PLT_ENTRY_SIZE; |
| 9943 | size_t pltn_size = PLT_SMALL_ENTRY_SIZE; | |
| 9944 | ||
| 1dbade74 SD |
9945 | if (elf_aarch64_tdata (plt->owner)->plt_type == PLT_BTI_PAC) |
| 9946 | { | |
| 1dbade74 SD |
9947 | if (elf_elfheader (plt->owner)->e_type == ET_EXEC) |
| 9948 | pltn_size = PLT_BTI_PAC_SMALL_ENTRY_SIZE; | |
| 9949 | else | |
| 9950 | pltn_size = PLT_PAC_SMALL_ENTRY_SIZE; | |
| 9951 | } | |
| 9952 | else if (elf_aarch64_tdata (plt->owner)->plt_type == PLT_BTI) | |
| 37c18eed | 9953 | { |
| 37c18eed SD |
9954 | if (elf_elfheader (plt->owner)->e_type == ET_EXEC) |
| 9955 | pltn_size = PLT_BTI_SMALL_ENTRY_SIZE; | |
| 9956 | } | |
| 1dbade74 SD |
9957 | else if (elf_aarch64_tdata (plt->owner)->plt_type == PLT_PAC) |
| 9958 | { | |
| 1dbade74 SD |
9959 | pltn_size = PLT_PAC_SMALL_ENTRY_SIZE; |
| 9960 | } | |
| 9961 | ||
| 37c18eed | 9962 | return plt->vma + plt0_size + i * pltn_size; |
| a06ea964 NC |
9963 | } |
| 9964 | ||
| d691934d NC |
9965 | /* Returns TRUE if NAME is an AArch64 mapping symbol. |
| 9966 | The ARM ELF standard defines $x (for A64 code) and $d (for data). | |
| 9967 | It also allows a period initiated suffix to be added to the symbol, ie: | |
| 9968 | "$[adtx]\.[:sym_char]+". */ | |
| 9969 | ||
| 9970 | static bfd_boolean | |
| 9971 | is_aarch64_mapping_symbol (const char * name) | |
| 9972 | { | |
| 9973 | return name != NULL /* Paranoia. */ | |
| 9974 | && name[0] == '$' /* Note: if objcopy --prefix-symbols has been used then | |
| 9975 | the mapping symbols could have acquired a prefix. | |
| 9976 | We do not support this here, since such symbols no | |
| 9977 | longer conform to the ARM ELF ABI. */ | |
| 9978 | && (name[1] == 'd' || name[1] == 'x') | |
| 9979 | && (name[2] == 0 || name[2] == '.'); | |
| 9980 | /* FIXME: Strictly speaking the symbol is only a valid mapping symbol if | |
| 9981 | any characters that follow the period are legal characters for the body | |
| 9982 | of a symbol's name. For now we just assume that this is the case. */ | |
| 9983 | } | |
| 9984 | ||
| 9985 | /* Make sure that mapping symbols in object files are not removed via the | |
| 9986 | "strip --strip-unneeded" tool. These symbols might needed in order to | |
| 9987 | correctly generate linked files. Once an object file has been linked, | |
| 9988 | it should be safe to remove them. */ | |
| 9989 | ||
| 9990 | static void | |
| 9991 | elfNN_aarch64_backend_symbol_processing (bfd *abfd, asymbol *sym) | |
| 9992 | { | |
| 9993 | if (((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
| 9994 | && sym->section != bfd_abs_section_ptr | |
| 9995 | && is_aarch64_mapping_symbol (sym->name)) | |
| 9996 | sym->flags |= BSF_KEEP; | |
| 9997 | } | |
| 9998 | ||
| cd702818 SD |
9999 | /* Implement elf_backend_setup_gnu_properties for AArch64. It serves as a |
| 10000 | wrapper function for _bfd_aarch64_elf_link_setup_gnu_properties to account | |
| 10001 | for the effect of GNU properties of the output_bfd. */ | |
| 10002 | static bfd * | |
| 10003 | elfNN_aarch64_link_setup_gnu_properties (struct bfd_link_info *info) | |
| 10004 | { | |
| 10005 | uint32_t prop = elf_aarch64_tdata (info->output_bfd)->gnu_and_prop; | |
| 10006 | bfd *pbfd = _bfd_aarch64_elf_link_setup_gnu_properties (info, &prop); | |
| 10007 | elf_aarch64_tdata (info->output_bfd)->gnu_and_prop = prop; | |
| 37c18eed SD |
10008 | elf_aarch64_tdata (info->output_bfd)->plt_type |
| 10009 | |= (prop & GNU_PROPERTY_AARCH64_FEATURE_1_BTI) ? PLT_BTI : 0; | |
| 10010 | setup_plt_values (info, elf_aarch64_tdata (info->output_bfd)->plt_type); | |
| cd702818 SD |
10011 | return pbfd; |
| 10012 | } | |
| 10013 | ||
| 10014 | /* Implement elf_backend_merge_gnu_properties for AArch64. It serves as a | |
| 10015 | wrapper function for _bfd_aarch64_elf_merge_gnu_properties to account | |
| 10016 | for the effect of GNU properties of the output_bfd. */ | |
| 10017 | static bfd_boolean | |
| 10018 | elfNN_aarch64_merge_gnu_properties (struct bfd_link_info *info, | |
| 4e539114 | 10019 | bfd *abfd, bfd *bbfd, |
| cd702818 SD |
10020 | elf_property *aprop, |
| 10021 | elf_property *bprop) | |
| 10022 | { | |
| 10023 | uint32_t prop | |
| 10024 | = elf_aarch64_tdata (info->output_bfd)->gnu_and_prop; | |
| 37c18eed SD |
10025 | |
| 10026 | /* If output has been marked with BTI using command line argument, give out | |
| 10027 | warning if necessary. */ | |
| 4e539114 SD |
10028 | /* Properties are merged per type, hence only check for warnings when merging |
| 10029 | GNU_PROPERTY_AARCH64_FEATURE_1_AND. */ | |
| 10030 | if (((aprop && aprop->pr_type == GNU_PROPERTY_AARCH64_FEATURE_1_AND) | |
| 10031 | || (bprop && bprop->pr_type == GNU_PROPERTY_AARCH64_FEATURE_1_AND)) | |
| 10032 | && (prop & GNU_PROPERTY_AARCH64_FEATURE_1_BTI) | |
| 37c18eed SD |
10033 | && (!elf_aarch64_tdata (info->output_bfd)->no_bti_warn)) |
| 10034 | { | |
| 10035 | if ((aprop && !(aprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_BTI)) | |
| 4e539114 | 10036 | || !aprop) |
| 37c18eed | 10037 | { |
| 8bf6d176 | 10038 | _bfd_error_handler (_("%pB: warning: BTI turned on by -z force-bti when " |
| 4e539114 SD |
10039 | "all inputs do not have BTI in NOTE section."), |
| 10040 | abfd); | |
| 10041 | } | |
| 10042 | if ((bprop && !(bprop->u.number & GNU_PROPERTY_AARCH64_FEATURE_1_BTI)) | |
| 10043 | || !bprop) | |
| 10044 | { | |
| 8bf6d176 | 10045 | _bfd_error_handler (_("%pB: warning: BTI turned on by -z force-bti when " |
| 4e539114 SD |
10046 | "all inputs do not have BTI in NOTE section."), |
| 10047 | bbfd); | |
| 37c18eed SD |
10048 | } |
| 10049 | } | |
| 10050 | ||
| cd702818 SD |
10051 | return _bfd_aarch64_elf_merge_gnu_properties (info, abfd, aprop, |
| 10052 | bprop, prop); | |
| 10053 | } | |
| a06ea964 NC |
10054 | |
| 10055 | /* We use this so we can override certain functions | |
| 10056 | (though currently we don't). */ | |
| 10057 | ||
| cec5225b | 10058 | const struct elf_size_info elfNN_aarch64_size_info = |
| a06ea964 | 10059 | { |
| cec5225b YZ |
10060 | sizeof (ElfNN_External_Ehdr), |
| 10061 | sizeof (ElfNN_External_Phdr), | |
| 10062 | sizeof (ElfNN_External_Shdr), | |
| 10063 | sizeof (ElfNN_External_Rel), | |
| 10064 | sizeof (ElfNN_External_Rela), | |
| 10065 | sizeof (ElfNN_External_Sym), | |
| 10066 | sizeof (ElfNN_External_Dyn), | |
| a06ea964 NC |
10067 | sizeof (Elf_External_Note), |
| 10068 | 4, /* Hash table entry size. */ | |
| 10069 | 1, /* Internal relocs per external relocs. */ | |
| cec5225b YZ |
10070 | ARCH_SIZE, /* Arch size. */ |
| 10071 | LOG_FILE_ALIGN, /* Log_file_align. */ | |
| 10072 | ELFCLASSNN, EV_CURRENT, | |
| 10073 | bfd_elfNN_write_out_phdrs, | |
| 10074 | bfd_elfNN_write_shdrs_and_ehdr, | |
| 10075 | bfd_elfNN_checksum_contents, | |
| 10076 | bfd_elfNN_write_relocs, | |
| 10077 | bfd_elfNN_swap_symbol_in, | |
| 10078 | bfd_elfNN_swap_symbol_out, | |
| 10079 | bfd_elfNN_slurp_reloc_table, | |
| 10080 | bfd_elfNN_slurp_symbol_table, | |
| 10081 | bfd_elfNN_swap_dyn_in, | |
| 10082 | bfd_elfNN_swap_dyn_out, | |
| 10083 | bfd_elfNN_swap_reloc_in, | |
| 10084 | bfd_elfNN_swap_reloc_out, | |
| 10085 | bfd_elfNN_swap_reloca_in, | |
| 10086 | bfd_elfNN_swap_reloca_out | |
| a06ea964 NC |
10087 | }; |
| 10088 | ||
| 10089 | #define ELF_ARCH bfd_arch_aarch64 | |
| 10090 | #define ELF_MACHINE_CODE EM_AARCH64 | |
| 10091 | #define ELF_MAXPAGESIZE 0x10000 | |
| 10092 | #define ELF_MINPAGESIZE 0x1000 | |
| 10093 | #define ELF_COMMONPAGESIZE 0x1000 | |
| 10094 | ||
| 07d6d2b8 | 10095 | #define bfd_elfNN_close_and_cleanup \ |
| cec5225b | 10096 | elfNN_aarch64_close_and_cleanup |
| a06ea964 | 10097 | |
| 07d6d2b8 | 10098 | #define bfd_elfNN_bfd_free_cached_info \ |
| cec5225b | 10099 | elfNN_aarch64_bfd_free_cached_info |
| a06ea964 | 10100 | |
| cec5225b YZ |
10101 | #define bfd_elfNN_bfd_is_target_special_symbol \ |
| 10102 | elfNN_aarch64_is_target_special_symbol | |
| a06ea964 | 10103 | |
| 07d6d2b8 | 10104 | #define bfd_elfNN_bfd_link_hash_table_create \ |
| cec5225b | 10105 | elfNN_aarch64_link_hash_table_create |
| a06ea964 | 10106 | |
| cec5225b YZ |
10107 | #define bfd_elfNN_bfd_merge_private_bfd_data \ |
| 10108 | elfNN_aarch64_merge_private_bfd_data | |
| a06ea964 | 10109 | |
| cec5225b YZ |
10110 | #define bfd_elfNN_bfd_print_private_bfd_data \ |
| 10111 | elfNN_aarch64_print_private_bfd_data | |
| a06ea964 | 10112 | |
| cec5225b YZ |
10113 | #define bfd_elfNN_bfd_reloc_type_lookup \ |
| 10114 | elfNN_aarch64_reloc_type_lookup | |
| a06ea964 | 10115 | |
| cec5225b YZ |
10116 | #define bfd_elfNN_bfd_reloc_name_lookup \ |
| 10117 | elfNN_aarch64_reloc_name_lookup | |
| a06ea964 | 10118 | |
| cec5225b YZ |
10119 | #define bfd_elfNN_bfd_set_private_flags \ |
| 10120 | elfNN_aarch64_set_private_flags | |
| a06ea964 | 10121 | |
| cec5225b YZ |
10122 | #define bfd_elfNN_find_inliner_info \ |
| 10123 | elfNN_aarch64_find_inliner_info | |
| a06ea964 | 10124 | |
| cec5225b YZ |
10125 | #define bfd_elfNN_find_nearest_line \ |
| 10126 | elfNN_aarch64_find_nearest_line | |
| a06ea964 | 10127 | |
| 37c18eed SD |
10128 | #define bfd_elfNN_get_synthetic_symtab \ |
| 10129 | elfNN_aarch64_get_synthetic_symtab | |
| 10130 | ||
| cec5225b YZ |
10131 | #define bfd_elfNN_mkobject \ |
| 10132 | elfNN_aarch64_mkobject | |
| a06ea964 | 10133 | |
| cec5225b YZ |
10134 | #define bfd_elfNN_new_section_hook \ |
| 10135 | elfNN_aarch64_new_section_hook | |
| a06ea964 NC |
10136 | |
| 10137 | #define elf_backend_adjust_dynamic_symbol \ | |
| cec5225b | 10138 | elfNN_aarch64_adjust_dynamic_symbol |
| a06ea964 NC |
10139 | |
| 10140 | #define elf_backend_always_size_sections \ | |
| cec5225b | 10141 | elfNN_aarch64_always_size_sections |
| a06ea964 NC |
10142 | |
| 10143 | #define elf_backend_check_relocs \ | |
| cec5225b | 10144 | elfNN_aarch64_check_relocs |
| a06ea964 NC |
10145 | |
| 10146 | #define elf_backend_copy_indirect_symbol \ | |
| cec5225b | 10147 | elfNN_aarch64_copy_indirect_symbol |
| a06ea964 | 10148 | |
| 823710d5 SN |
10149 | #define elf_backend_merge_symbol_attribute \ |
| 10150 | elfNN_aarch64_merge_symbol_attribute | |
| 10151 | ||
| a06ea964 NC |
10152 | /* Create .dynbss, and .rela.bss sections in DYNOBJ, and set up shortcuts |
| 10153 | to them in our hash. */ | |
| 10154 | #define elf_backend_create_dynamic_sections \ | |
| cec5225b | 10155 | elfNN_aarch64_create_dynamic_sections |
| a06ea964 NC |
10156 | |
| 10157 | #define elf_backend_init_index_section \ | |
| 10158 | _bfd_elf_init_2_index_sections | |
| 10159 | ||
| a06ea964 | 10160 | #define elf_backend_finish_dynamic_sections \ |
| cec5225b | 10161 | elfNN_aarch64_finish_dynamic_sections |
| a06ea964 NC |
10162 | |
| 10163 | #define elf_backend_finish_dynamic_symbol \ | |
| cec5225b | 10164 | elfNN_aarch64_finish_dynamic_symbol |
| a06ea964 | 10165 | |
| a06ea964 | 10166 | #define elf_backend_object_p \ |
| cec5225b | 10167 | elfNN_aarch64_object_p |
| a06ea964 | 10168 | |
| 07d6d2b8 | 10169 | #define elf_backend_output_arch_local_syms \ |
| cec5225b | 10170 | elfNN_aarch64_output_arch_local_syms |
| a06ea964 NC |
10171 | |
| 10172 | #define elf_backend_plt_sym_val \ | |
| cec5225b | 10173 | elfNN_aarch64_plt_sym_val |
| a06ea964 NC |
10174 | |
| 10175 | #define elf_backend_post_process_headers \ | |
| cec5225b | 10176 | elfNN_aarch64_post_process_headers |
| a06ea964 NC |
10177 | |
| 10178 | #define elf_backend_relocate_section \ | |
| cec5225b | 10179 | elfNN_aarch64_relocate_section |
| a06ea964 NC |
10180 | |
| 10181 | #define elf_backend_reloc_type_class \ | |
| cec5225b | 10182 | elfNN_aarch64_reloc_type_class |
| a06ea964 | 10183 | |
| a06ea964 | 10184 | #define elf_backend_section_from_shdr \ |
| cec5225b | 10185 | elfNN_aarch64_section_from_shdr |
| a06ea964 NC |
10186 | |
| 10187 | #define elf_backend_size_dynamic_sections \ | |
| cec5225b | 10188 | elfNN_aarch64_size_dynamic_sections |
| a06ea964 NC |
10189 | |
| 10190 | #define elf_backend_size_info \ | |
| cec5225b | 10191 | elfNN_aarch64_size_info |
| a06ea964 | 10192 | |
| 68fcca92 JW |
10193 | #define elf_backend_write_section \ |
| 10194 | elfNN_aarch64_write_section | |
| 10195 | ||
| d691934d NC |
10196 | #define elf_backend_symbol_processing \ |
| 10197 | elfNN_aarch64_backend_symbol_processing | |
| 10198 | ||
| cd702818 SD |
10199 | #define elf_backend_setup_gnu_properties \ |
| 10200 | elfNN_aarch64_link_setup_gnu_properties | |
| 10201 | ||
| 10202 | #define elf_backend_merge_gnu_properties \ | |
| 10203 | elfNN_aarch64_merge_gnu_properties | |
| 10204 | ||
| a06ea964 | 10205 | #define elf_backend_can_refcount 1 |
| 59c108f7 | 10206 | #define elf_backend_can_gc_sections 1 |
| a06ea964 NC |
10207 | #define elf_backend_plt_readonly 1 |
| 10208 | #define elf_backend_want_got_plt 1 | |
| 10209 | #define elf_backend_want_plt_sym 0 | |
| 5474d94f | 10210 | #define elf_backend_want_dynrelro 1 |
| a06ea964 NC |
10211 | #define elf_backend_may_use_rel_p 0 |
| 10212 | #define elf_backend_may_use_rela_p 1 | |
| 10213 | #define elf_backend_default_use_rela_p 1 | |
| 07d6d2b8 | 10214 | #define elf_backend_rela_normal 1 |
| 64f52338 | 10215 | #define elf_backend_dtrel_excludes_plt 1 |
| a06ea964 | 10216 | #define elf_backend_got_header_size (GOT_ENTRY_SIZE * 3) |
| c495064d | 10217 | #define elf_backend_default_execstack 0 |
| 32f573bc | 10218 | #define elf_backend_extern_protected_data 1 |
| 7f784814 | 10219 | #define elf_backend_hash_symbol elf_aarch64_hash_symbol |
| a06ea964 | 10220 | |
| 07d6d2b8 | 10221 | #undef elf_backend_obj_attrs_section |
| a06ea964 NC |
10222 | #define elf_backend_obj_attrs_section ".ARM.attributes" |
| 10223 | ||
| cec5225b | 10224 | #include "elfNN-target.h" |
| a75cf613 ES |
10225 | |
| 10226 | /* CloudABI support. */ | |
| 10227 | ||
| 10228 | #undef TARGET_LITTLE_SYM | |
| 10229 | #define TARGET_LITTLE_SYM aarch64_elfNN_le_cloudabi_vec | |
| 10230 | #undef TARGET_LITTLE_NAME | |
| 10231 | #define TARGET_LITTLE_NAME "elfNN-littleaarch64-cloudabi" | |
| 10232 | #undef TARGET_BIG_SYM | |
| 10233 | #define TARGET_BIG_SYM aarch64_elfNN_be_cloudabi_vec | |
| 10234 | #undef TARGET_BIG_NAME | |
| 10235 | #define TARGET_BIG_NAME "elfNN-bigaarch64-cloudabi" | |
| 10236 | ||
| 10237 | #undef ELF_OSABI | |
| 10238 | #define ELF_OSABI ELFOSABI_CLOUDABI | |
| 10239 | ||
| 10240 | #undef elfNN_bed | |
| 10241 | #define elfNN_bed elfNN_aarch64_cloudabi_bed | |
| 10242 | ||
| 10243 | #include "elfNN-target.h" |