[444] | 1 | /* AArch64 ELF support for BFD. |
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| 2 | |
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| 3 | Copyright 2009, 2010, 2011, 2012 Free Software Foundation, Inc. |
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| 4 | Contributed by ARM Ltd. |
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| 5 | |
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| 6 | This file is part of GNU Binutils. |
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| 7 | |
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| 8 | This program is free software; you can redistribute it and/or modify |
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| 9 | it under the terms of the GNU General Public License as published by |
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| 10 | the Free Software Foundation; either version 3 of the license, or |
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| 11 | (at your option) any later version. |
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| 12 | |
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| 13 | This program is distributed in the hope that it will be useful, |
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | GNU General Public License for more details. |
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| 17 | |
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| 18 | You should have received a copy of the GNU General Public License |
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| 19 | along with this program; see the file COPYING3. If not, |
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| 20 | see <http://www.gnu.org/licenses/>. */ |
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| 21 | |
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| 22 | #ifndef _ELF_AARCH64_H |
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| 23 | #define _ELF_AARCH64_H |
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| 24 | |
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| 25 | #include "elf/reloc-macros.h" |
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| 26 | |
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| 27 | /* Processor specific program header types. */ |
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| 28 | #define PT_AARCH64_ARCHEXT (PT_LOPROC + 0) |
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| 29 | |
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| 30 | /* Additional section types. */ |
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| 31 | #define SHT_AARCH64_ATTRIBUTES 0x70000003 /* Section holds attributes. */ |
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| 32 | |
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| 33 | /* AArch64-specific values for sh_flags. */ |
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| 34 | #define SHF_ENTRYSECT 0x10000000 /* Section contains an |
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| 35 | entry point. */ |
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| 36 | #define SHF_COMDEF 0x80000000 /* Section may be multiply defined |
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| 37 | in the input to a link step. */ |
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| 38 | |
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| 39 | /* Relocation types. */ |
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| 40 | |
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| 41 | START_RELOC_NUMBERS (elf_aarch64_reloc_type) |
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| 42 | |
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| 43 | /* Null relocations. */ |
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| 44 | RELOC_NUMBER (R_AARCH64_NONE, 0) /* No reloc */ |
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| 45 | |
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| 46 | /* Basic data relocations. */ |
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| 47 | |
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| 48 | /* .word: (S+A) */ |
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| 49 | RELOC_NUMBER (R_AARCH64_P32_ABS32, 1) |
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| 50 | |
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| 51 | /* .half: (S+A) */ |
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| 52 | RELOC_NUMBER (R_AARCH64_P32_ABS16, 2) |
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| 53 | |
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| 54 | /* .word: (S+A-P) */ |
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| 55 | RELOC_NUMBER (R_AARCH64_P32_PREL32, 3) |
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| 56 | |
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| 57 | /* .half: (S+A-P) */ |
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| 58 | RELOC_NUMBER (R_AARCH64_P32_PREL16, 4) |
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| 59 | |
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| 60 | /* Group relocations to create a 16, 32, 48 or 64 bit |
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| 61 | unsigned data or abs address inline. */ |
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| 62 | |
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| 63 | /* MOV[ZK]: ((S+A) >> 0) & 0xffff */ |
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| 64 | RELOC_NUMBER (R_AARCH64_P32_MOVW_UABS_G0, 5) |
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| 65 | |
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| 66 | /* MOV[ZK]: ((S+A) >> 0) & 0xffff */ |
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| 67 | RELOC_NUMBER (R_AARCH64_P32_MOVW_UABS_G0_NC, 6) |
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| 68 | |
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| 69 | /* MOV[ZK]: ((S+A) >> 16) & 0xffff */ |
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| 70 | RELOC_NUMBER (R_AARCH64_P32_MOVW_UABS_G1, 7) |
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| 71 | |
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| 72 | /* Group relocations to create high part of a 16, 32, 48 or 64 bit |
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| 73 | signed data or abs address inline. Will change instruction |
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| 74 | to MOVN or MOVZ depending on sign of calculated value. */ |
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| 75 | |
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| 76 | /* MOV[ZN]: ((S+A) >> 0) & 0xffff */ |
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| 77 | RELOC_NUMBER (R_AARCH64_P32_MOVW_SABS_G0, 8) |
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| 78 | |
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| 79 | /* Relocations to generate 19, 21 and 33 bit PC-relative load/store |
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| 80 | addresses: PG(x) is (x & ~0xfff). */ |
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| 81 | |
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| 82 | /* LD-lit: ((S+A-P) >> 2) & 0x7ffff */ |
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| 83 | RELOC_NUMBER (R_AARCH64_P32_LD_PREL_LO19, 9) |
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| 84 | |
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| 85 | /* ADR: (S+A-P) & 0x1fffff */ |
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| 86 | RELOC_NUMBER (R_AARCH64_P32_ADR_PREL_LO21, 10) |
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| 87 | |
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| 88 | /* ADRH: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ |
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| 89 | RELOC_NUMBER (R_AARCH64_P32_ADR_PREL_PG_HI21, 11) |
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| 90 | |
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| 91 | /* ADD: (S+A) & 0xfff */ |
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| 92 | RELOC_NUMBER (R_AARCH64_P32_ADD_ABS_LO12_NC, 12) |
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| 93 | |
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| 94 | /* LD/ST8: (S+A) & 0xfff */ |
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| 95 | RELOC_NUMBER (R_AARCH64_P32_LDST8_ABS_LO12_NC, 13) |
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| 96 | |
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| 97 | /* LD/ST16: (S+A) & 0xffe */ |
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| 98 | RELOC_NUMBER (R_AARCH64_P32_LDST16_ABS_LO12_NC, 14) |
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| 99 | |
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| 100 | /* LD/ST32: (S+A) & 0xffc */ |
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| 101 | RELOC_NUMBER (R_AARCH64_P32_LDST32_ABS_LO12_NC, 15) |
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| 102 | |
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| 103 | /* LD/ST64: (S+A) & 0xff8 */ |
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| 104 | RELOC_NUMBER (R_AARCH64_P32_LDST64_ABS_LO12_NC, 16) |
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| 105 | |
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| 106 | /* LD/ST128: (S+A) & 0xff0 */ |
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| 107 | RELOC_NUMBER (R_AARCH64_P32_LDST128_ABS_LO12_NC, 17) |
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| 108 | |
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| 109 | /* Relocations for control-flow instructions. */ |
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| 110 | |
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| 111 | /* TBZ/NZ: ((S+A-P) >> 2) & 0x3fff. */ |
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| 112 | RELOC_NUMBER (R_AARCH64_P32_TSTBR14, 18) |
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| 113 | |
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| 114 | /* B.cond: ((S+A-P) >> 2) & 0x7ffff. */ |
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| 115 | RELOC_NUMBER (R_AARCH64_P32_CONDBR19, 19) |
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| 116 | |
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| 117 | /* B: ((S+A-P) >> 2) & 0x3ffffff. */ |
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| 118 | RELOC_NUMBER (R_AARCH64_P32_JUMP26, 20) |
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| 119 | |
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| 120 | /* BL: ((S+A-P) >> 2) & 0x3ffffff. */ |
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| 121 | RELOC_NUMBER (R_AARCH64_P32_CALL26, 21) |
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| 122 | |
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| 123 | |
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| 124 | RELOC_NUMBER (R_AARCH64_P32_GOT_LD_PREL19, 25) |
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| 125 | RELOC_NUMBER (R_AARCH64_P32_ADR_GOT_PAGE, 26) |
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| 126 | RELOC_NUMBER (R_AARCH64_P32_LD32_GOT_LO12_NC, 27) |
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| 127 | |
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| 128 | |
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| 129 | RELOC_NUMBER (R_AARCH64_P32_TLSGD_ADR_PAGE21, 81) |
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| 130 | RELOC_NUMBER (R_AARCH64_P32_TLSGD_ADD_LO12_NC, 82) |
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| 131 | RELOC_NUMBER (R_AARCH64_P32_TLSIE_ADR_GOTTPREL_PAGE21, 103) |
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| 132 | RELOC_NUMBER (R_AARCH64_P32_TLSIE_LD32_GOTTPREL_LO12_NC, 104) |
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| 133 | RELOC_NUMBER (R_AARCH64_P32_TLSIE_LD_GOTTPREL_PREL19, 105) |
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| 134 | RELOC_NUMBER (R_AARCH64_P32_TLSLE_MOVW_TPREL_G1, 106) |
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| 135 | RELOC_NUMBER (R_AARCH64_P32_TLSLE_MOVW_TPREL_G0, 107) |
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| 136 | RELOC_NUMBER (R_AARCH64_P32_TLSLE_MOVW_TPREL_G0_NC, 108) |
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| 137 | RELOC_NUMBER (R_AARCH64_P32_TLSLE_ADD_TPREL_HI12, 109) |
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| 138 | RELOC_NUMBER (R_AARCH64_P32_TLSLE_ADD_TPREL_LO12, 110) |
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| 139 | RELOC_NUMBER (R_AARCH64_P32_TLSLE_ADD_TPREL_LO12_NC, 111) |
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| 140 | |
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| 141 | RELOC_NUMBER (R_AARCH64_P32_TLSDESC_LD_PREL19, 122) |
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| 142 | RELOC_NUMBER (R_AARCH64_P32_TLSDESC_ADR_PREL21, 123) |
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| 143 | RELOC_NUMBER (R_AARCH64_P32_TLSDESC_ADR_PAGE21, 124) |
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| 144 | RELOC_NUMBER (R_AARCH64_P32_TLSDESC_LD32_LO12_NC, 125) |
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| 145 | RELOC_NUMBER (R_AARCH64_P32_TLSDESC_ADD_LO12_NC, 126) |
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| 146 | RELOC_NUMBER (R_AARCH64_P32_TLSDESC_CALL, 127) |
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| 147 | |
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| 148 | /* Dynamic relocations */ |
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| 149 | |
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| 150 | /* Copy symbol at runtime. */ |
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| 151 | RELOC_NUMBER (R_AARCH64_P32_COPY, 180) |
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| 152 | |
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| 153 | /* Create GOT entry. */ |
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| 154 | RELOC_NUMBER (R_AARCH64_P32_GLOB_DAT, 181) |
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| 155 | |
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| 156 | /* Create PLT entry. */ |
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| 157 | RELOC_NUMBER (R_AARCH64_P32_JUMP_SLOT, 182) |
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| 158 | |
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| 159 | /* Adjust by program base. */ |
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| 160 | RELOC_NUMBER (R_AARCH64_P32_RELATIVE, 183) |
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| 161 | RELOC_NUMBER (R_AARCH64_P32_TLS_DTPMOD, 184) |
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| 162 | RELOC_NUMBER (R_AARCH64_P32_TLS_DTPREL, 185) |
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| 163 | RELOC_NUMBER (R_AARCH64_P32_TLS_TPREL, 186) |
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| 164 | RELOC_NUMBER (R_AARCH64_P32_TLSDESC, 187) |
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| 165 | RELOC_NUMBER (R_AARCH64_P32_IRELATIVE, 188) |
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| 166 | |
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| 167 | RELOC_NUMBER (R_AARCH64_NULL, 256) /* No reloc */ |
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| 168 | |
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| 169 | /* Basic data relocations. */ |
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| 170 | |
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| 171 | /* .xword: (S+A) */ |
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| 172 | RELOC_NUMBER (R_AARCH64_ABS64, 257) |
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| 173 | |
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| 174 | /* .word: (S+A) */ |
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| 175 | RELOC_NUMBER (R_AARCH64_ABS32, 258) |
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| 176 | |
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| 177 | /* .half: (S+A) */ |
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| 178 | RELOC_NUMBER (R_AARCH64_ABS16, 259) |
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| 179 | |
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| 180 | /* .xword: (S+A-P) */ |
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| 181 | RELOC_NUMBER (R_AARCH64_PREL64, 260) |
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| 182 | |
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| 183 | /* .word: (S+A-P) */ |
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| 184 | RELOC_NUMBER (R_AARCH64_PREL32, 261) |
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| 185 | |
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| 186 | /* .half: (S+A-P) */ |
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| 187 | RELOC_NUMBER (R_AARCH64_PREL16, 262) |
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| 188 | |
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| 189 | /* Group relocations to create a 16, 32, 48 or 64 bit |
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| 190 | unsigned data or abs address inline. */ |
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| 191 | |
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| 192 | /* MOV[ZK]: ((S+A) >> 0) & 0xffff */ |
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| 193 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G0, 263) |
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| 194 | |
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| 195 | /* MOV[ZK]: ((S+A) >> 0) & 0xffff */ |
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| 196 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G0_NC, 264) |
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| 197 | |
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| 198 | /* MOV[ZK]: ((S+A) >> 16) & 0xffff */ |
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| 199 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G1, 265) |
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| 200 | |
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| 201 | /* MOV[ZK]: ((S+A) >> 16) & 0xffff */ |
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| 202 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G1_NC, 266) |
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| 203 | |
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| 204 | /* MOV[ZK]: ((S+A) >> 32) & 0xffff */ |
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| 205 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G2, 267) |
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| 206 | |
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| 207 | /* MOV[ZK]: ((S+A) >> 32) & 0xffff */ |
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| 208 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G2_NC, 268) |
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| 209 | |
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| 210 | /* MOV[ZK]: ((S+A) >> 48) & 0xffff */ |
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| 211 | RELOC_NUMBER (R_AARCH64_MOVW_UABS_G3, 269) |
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| 212 | |
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| 213 | /* Group relocations to create high part of a 16, 32, 48 or 64 bit |
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| 214 | signed data or abs address inline. Will change instruction |
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| 215 | to MOVN or MOVZ depending on sign of calculated value. */ |
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| 216 | |
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| 217 | /* MOV[ZN]: ((S+A) >> 0) & 0xffff */ |
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| 218 | RELOC_NUMBER (R_AARCH64_MOVW_SABS_G0, 270) |
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| 219 | |
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| 220 | /* MOV[ZN]: ((S+A) >> 16) & 0xffff */ |
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| 221 | RELOC_NUMBER (R_AARCH64_MOVW_SABS_G1, 271) |
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| 222 | |
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| 223 | /* MOV[ZN]: ((S+A) >> 32) & 0xffff */ |
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| 224 | RELOC_NUMBER (R_AARCH64_MOVW_SABS_G2, 272) |
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| 225 | |
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| 226 | /* Relocations to generate 19, 21 and 33 bit PC-relative load/store |
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| 227 | addresses: PG(x) is (x & ~0xfff). */ |
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| 228 | |
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| 229 | /* LD-lit: ((S+A-P) >> 2) & 0x7ffff */ |
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| 230 | RELOC_NUMBER (R_AARCH64_LD_PREL_LO19, 273) |
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| 231 | |
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| 232 | /* ADR: (S+A-P) & 0x1fffff */ |
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| 233 | RELOC_NUMBER (R_AARCH64_ADR_PREL_LO21, 274) |
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| 234 | |
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| 235 | /* ADRH: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ |
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| 236 | RELOC_NUMBER (R_AARCH64_ADR_PREL_PG_HI21, 275) |
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| 237 | |
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| 238 | /* ADRH: ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */ |
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| 239 | RELOC_NUMBER (R_AARCH64_ADR_PREL_PG_HI21_NC, 276) |
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| 240 | |
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| 241 | /* ADD: (S+A) & 0xfff */ |
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| 242 | RELOC_NUMBER (R_AARCH64_ADD_ABS_LO12_NC, 277) |
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| 243 | |
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| 244 | /* LD/ST8: (S+A) & 0xfff */ |
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| 245 | RELOC_NUMBER (R_AARCH64_LDST8_ABS_LO12_NC, 278) |
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| 246 | |
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| 247 | /* Relocations for control-flow instructions. */ |
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| 248 | |
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| 249 | /* TBZ/NZ: ((S+A-P) >> 2) & 0x3fff. */ |
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| 250 | RELOC_NUMBER (R_AARCH64_TSTBR14, 279) |
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| 251 | |
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| 252 | /* B.cond: ((S+A-P) >> 2) & 0x7ffff. */ |
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| 253 | RELOC_NUMBER (R_AARCH64_CONDBR19, 280) |
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| 254 | |
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| 255 | /* 281 unused */ |
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| 256 | |
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| 257 | /* B: ((S+A-P) >> 2) & 0x3ffffff. */ |
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| 258 | RELOC_NUMBER (R_AARCH64_JUMP26, 282) |
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| 259 | |
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| 260 | /* BL: ((S+A-P) >> 2) & 0x3ffffff. */ |
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| 261 | RELOC_NUMBER (R_AARCH64_CALL26, 283) |
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| 262 | |
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| 263 | /* LD/ST16: (S+A) & 0xffe */ |
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| 264 | RELOC_NUMBER (R_AARCH64_LDST16_ABS_LO12_NC, 284) |
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| 265 | |
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| 266 | /* LD/ST32: (S+A) & 0xffc */ |
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| 267 | RELOC_NUMBER (R_AARCH64_LDST32_ABS_LO12_NC, 285) |
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| 268 | |
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| 269 | /* LD/ST64: (S+A) & 0xff8 */ |
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| 270 | RELOC_NUMBER (R_AARCH64_LDST64_ABS_LO12_NC, 286) |
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| 271 | |
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| 272 | /* LD/ST128: (S+A) & 0xff0 */ |
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| 273 | RELOC_NUMBER (R_AARCH64_LDST128_ABS_LO12_NC, 299) |
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| 274 | |
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| 275 | RELOC_NUMBER (R_AARCH64_GOT_LD_PREL19, 309) |
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| 276 | RELOC_NUMBER (R_AARCH64_ADR_GOT_PAGE, 311) |
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| 277 | RELOC_NUMBER (R_AARCH64_LD64_GOT_LO12_NC, 312) |
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| 278 | |
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| 279 | RELOC_NUMBER (R_AARCH64_TLSGD_ADR_PAGE21, 513) |
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| 280 | RELOC_NUMBER (R_AARCH64_TLSGD_ADD_LO12_NC, 514) |
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| 281 | RELOC_NUMBER (R_AARCH64_TLSIE_MOVW_GOTTPREL_G1, 539) |
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| 282 | RELOC_NUMBER (R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC, 540) |
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| 283 | RELOC_NUMBER (R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21, 541) |
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| 284 | RELOC_NUMBER (R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC, 542) |
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| 285 | RELOC_NUMBER (R_AARCH64_TLSIE_LD_GOTTPREL_PREL19, 543) |
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| 286 | RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G2, 544) |
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| 287 | RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G1, 545) |
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| 288 | RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G1_NC, 546) |
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| 289 | RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G0, 547) |
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| 290 | RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G0_NC, 548) |
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| 291 | RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_HI12, 549) |
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| 292 | RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_LO12, 550) |
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| 293 | RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_LO12_NC, 551) |
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| 294 | |
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| 295 | RELOC_NUMBER (R_AARCH64_TLSDESC_LD_PREL19, 560) |
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| 296 | RELOC_NUMBER (R_AARCH64_TLSDESC_ADR_PREL21, 561) |
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| 297 | RELOC_NUMBER (R_AARCH64_TLSDESC_ADR_PAGE21, 562) |
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| 298 | RELOC_NUMBER (R_AARCH64_TLSDESC_LD64_LO12_NC, 563) |
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| 299 | RELOC_NUMBER (R_AARCH64_TLSDESC_ADD_LO12_NC, 564) |
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| 300 | RELOC_NUMBER (R_AARCH64_TLSDESC_OFF_G1, 565) |
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| 301 | RELOC_NUMBER (R_AARCH64_TLSDESC_OFF_G0_NC, 566) |
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| 302 | RELOC_NUMBER (R_AARCH64_TLSDESC_LDR, 567) |
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| 303 | RELOC_NUMBER (R_AARCH64_TLSDESC_ADD, 568) |
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| 304 | RELOC_NUMBER (R_AARCH64_TLSDESC_CALL, 569) |
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| 305 | |
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| 306 | /* Dynamic relocations */ |
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| 307 | |
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| 308 | /* Copy symbol at runtime. */ |
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| 309 | RELOC_NUMBER (R_AARCH64_COPY, 1024) |
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| 310 | |
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| 311 | /* Create GOT entry. */ |
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| 312 | RELOC_NUMBER (R_AARCH64_GLOB_DAT, 1025) |
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| 313 | |
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| 314 | /* Create PLT entry. */ |
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| 315 | RELOC_NUMBER (R_AARCH64_JUMP_SLOT, 1026) |
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| 316 | |
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| 317 | /* Adjust by program base. */ |
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| 318 | RELOC_NUMBER (R_AARCH64_RELATIVE, 1027) |
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| 319 | RELOC_NUMBER (R_AARCH64_TLS_DTPMOD, 1028) |
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| 320 | RELOC_NUMBER (R_AARCH64_TLS_DTPREL, 1029) |
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| 321 | RELOC_NUMBER (R_AARCH64_TLS_TPREL, 1030) |
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| 322 | RELOC_NUMBER (R_AARCH64_TLSDESC, 1031) |
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| 323 | RELOC_NUMBER (R_AARCH64_IRELATIVE, 1032) |
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| 324 | |
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| 325 | END_RELOC_NUMBERS (R_AARCH64_end) |
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| 326 | |
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| 327 | #endif /* _ELF_AARCH64_H */ |
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