include/elf/aarch64.h

   1 /* AArch64 ELF support for BFD.
   2
   3    Copyright 2009, 2010, 2011, 2012  Free Software Foundation, Inc.
   4    Contributed by ARM Ltd.
   5
   6    This file is part of GNU Binutils.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the license, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; see the file COPYING3. If not,
  20    see <http://www.gnu.org/licenses/>.  */
  21
  22 #ifndef _ELF_AARCH64_H
  23 #define _ELF_AARCH64_H
  24
  25 #include "elf/reloc-macros.h"
  26
  27 /* Processor specific program header types.  */
  28 #define PT_AARCH64_ARCHEXT      (PT_LOPROC + 0)
  29
  30 /* Additional section types.  */
  31 #define SHT_AARCH64_ATTRIBUTES  0x70000003  /* Section holds attributes.  */
  32
  33 /* AArch64-specific values for sh_flags.  */
  34 #define SHF_ENTRYSECT           0x10000000   /* Section contains an
  35                                                 entry point.  */
  36 #define SHF_COMDEF              0x80000000   /* Section may be multiply defined
  37                                                 in the input to a link step.  */
  38
  39 /* Relocation types.  */
  40
  41 START_RELOC_NUMBERS (elf_aarch64_reloc_type)
  42
  43 /* Null relocations.  */
  44 RELOC_NUMBER (R_AARCH64_NONE, 0) /* No reloc */
  45
  46 FAKE_RELOC (R_AARCH64_static_min, 256)
  47
  48 RELOC_NUMBER (R_AARCH64_NULL, 256) /* No reloc */
  49
  50 /* Basic data relocations.  */
  51
  52 /* .xword: (S+A) */
  53 RELOC_NUMBER (R_AARCH64_ABS64, 257)
  54
  55 /* .word:  (S+A) */
  56 RELOC_NUMBER (R_AARCH64_ABS32, 258)
  57
  58 /* .half: (S+A) */
  59 RELOC_NUMBER (R_AARCH64_ABS16, 259)
  60
  61 /* .xword: (S+A-P) */
  62 RELOC_NUMBER (R_AARCH64_PREL64, 260)
  63
  64 /* .word: (S+A-P) */
  65 RELOC_NUMBER (R_AARCH64_PREL32, 261)
  66
  67 /* .half:  (S+A-P) */
  68 RELOC_NUMBER (R_AARCH64_PREL16, 262)
  69
  70 /* Group relocations to create a 16, 32, 48 or 64 bit
  71    unsigned data or abs address inline.  */
  72
  73 /* MOV[ZK]:   ((S+A) >>  0) & 0xffff */
  74 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G0,           263)
  75
  76 /* MOV[ZK]:   ((S+A) >>  0) & 0xffff */
  77 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G0_NC, 264)
  78
  79 /* MOV[ZK]:   ((S+A) >> 16) & 0xffff */
  80 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G1, 265)
  81
  82 /* MOV[ZK]:   ((S+A) >> 16) & 0xffff */
  83 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G1_NC, 266)
  84
  85 /* MOV[ZK]:   ((S+A) >> 32) & 0xffff */
  86 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G2, 267)
  87
  88 /* MOV[ZK]:   ((S+A) >> 32) & 0xffff */
  89 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G2_NC, 268)
  90
  91 /* MOV[ZK]:   ((S+A) >> 48) & 0xffff */
  92 RELOC_NUMBER (R_AARCH64_MOVW_UABS_G3, 269)
  93
  94 /* Group relocations to create high part of a 16, 32, 48 or 64 bit
  95    signed data or abs address inline. Will change instruction
  96    to MOVN or MOVZ depending on sign of calculated value.  */
  97
  98 /* MOV[ZN]:   ((S+A) >>  0) & 0xffff */
  99 RELOC_NUMBER (R_AARCH64_MOVW_SABS_G0, 270)
 100
 101 /* MOV[ZN]:   ((S+A) >> 16) & 0xffff */
 102 RELOC_NUMBER (R_AARCH64_MOVW_SABS_G1, 271)
 103
 104 /* MOV[ZN]:   ((S+A) >> 32) & 0xffff */
 105 RELOC_NUMBER (R_AARCH64_MOVW_SABS_G2, 272)
 106
 107 /* Relocations to generate 19, 21 and 33 bit PC-relative load/store
 108    addresses: PG(x) is (x & ~0xfff).  */
 109
 110 /* LD-lit: ((S+A-P) >> 2) & 0x7ffff */
 111 RELOC_NUMBER (R_AARCH64_LD_PREL_LO19, 273)
 112
 113 /* ADR:    (S+A-P) & 0x1fffff */
 114 RELOC_NUMBER (R_AARCH64_ADR_PREL_LO21, 274)
 115
 116 /* ADRH:   ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */
 117 RELOC_NUMBER (R_AARCH64_ADR_PREL_PG_HI21, 275)
 118
 119 /* ADRH:   ((PG(S+A)-PG(P)) >> 12) & 0x1fffff */
 120 RELOC_NUMBER (R_AARCH64_ADR_PREL_PG_HI21_NC, 276)
 121
 122 /* ADD:    (S+A) & 0xfff */
 123 RELOC_NUMBER (R_AARCH64_ADD_ABS_LO12_NC, 277)
 124
 125 /* LD/ST8: (S+A) & 0xfff */
 126 RELOC_NUMBER (R_AARCH64_LDST8_ABS_LO12_NC, 278)
 127
 128 /* Relocations for control-flow instructions.  */
 129
 130 /* TBZ/NZ: ((S+A-P) >> 2) & 0x3fff.  */
 131 RELOC_NUMBER (R_AARCH64_TSTBR14, 279)
 132
 133 /* B.cond: ((S+A-P) >> 2) & 0x7ffff.  */
 134 RELOC_NUMBER (R_AARCH64_CONDBR19, 280)
 135
 136 /* 281 unused */
 137
 138 /* B:      ((S+A-P) >> 2) & 0x3ffffff.  */
 139 RELOC_NUMBER (R_AARCH64_JUMP26, 282)
 140
 141 /* BL:     ((S+A-P) >> 2) & 0x3ffffff.  */
 142 RELOC_NUMBER (R_AARCH64_CALL26, 283)
 143
 144 /* LD/ST16: (S+A) & 0xffe */
 145 RELOC_NUMBER (R_AARCH64_LDST16_ABS_LO12_NC, 284)
 146
 147 /* LD/ST32: (S+A) & 0xffc */
 148 RELOC_NUMBER (R_AARCH64_LDST32_ABS_LO12_NC, 285)
 149
 150 /* LD/ST64: (S+A) & 0xff8 */
 151 RELOC_NUMBER (R_AARCH64_LDST64_ABS_LO12_NC, 286)
 152
 153 /* LD/ST128: (S+A) & 0xff0 */
 154 RELOC_NUMBER (R_AARCH64_LDST128_ABS_LO12_NC, 299)
 155
 156 RELOC_NUMBER (R_AARCH64_ADR_GOT_PAGE, 311)
 157 RELOC_NUMBER (R_AARCH64_LD64_GOT_LO12_NC, 312)
 158
 159 FAKE_RELOC (R_AARCH64_static_max, 313)
 160
 161 FAKE_RELOC (R_AARCH64_tls_min, 512)
 162 RELOC_NUMBER (R_AARCH64_TLSGD_ADR_PAGE21, 513)
 163 RELOC_NUMBER (R_AARCH64_TLSGD_ADD_LO12_NC, 514)
 164 RELOC_NUMBER (R_AARCH64_TLSIE_MOVW_GOTTPREL_G1, 539)
 165 RELOC_NUMBER (R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC, 540)
 166 RELOC_NUMBER (R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21, 541)
 167 RELOC_NUMBER (R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC, 542)
 168 RELOC_NUMBER (R_AARCH64_TLSIE_LD_GOTTPREL_PREL19, 543)
 169 RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G2, 544)
 170 RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G1, 545)
 171 RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G1_NC, 546)
 172 RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G0, 547)
 173 RELOC_NUMBER (R_AARCH64_TLSLE_MOVW_TPREL_G0_NC, 548)
 174 RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_HI12, 549)
 175 RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_LO12, 550)
 176 RELOC_NUMBER (R_AARCH64_TLSLE_ADD_TPREL_LO12_NC, 551)
 177 FAKE_RELOC (R_AARCH64_tls_max, 552)
 178
 179 FAKE_RELOC (R_AARCH64_tlsdesc_min, 560)
 180 RELOC_NUMBER (R_AARCH64_TLSDESC_LD64_PREL19, 560)
 181 RELOC_NUMBER (R_AARCH64_TLSDESC_ADR_PREL21, 561)
 182 RELOC_NUMBER (R_AARCH64_TLSDESC_ADR_PAGE, 562)
 183 RELOC_NUMBER (R_AARCH64_TLSDESC_LD64_LO12_NC, 563)
 184 RELOC_NUMBER (R_AARCH64_TLSDESC_ADD_LO12_NC, 564)
 185 RELOC_NUMBER (R_AARCH64_TLSDESC_OFF_G1, 565)
 186 RELOC_NUMBER (R_AARCH64_TLSDESC_OFF_G0_NC, 566)
 187 RELOC_NUMBER (R_AARCH64_TLSDESC_LDR, 567)
 188 RELOC_NUMBER (R_AARCH64_TLSDESC_ADD, 568)
 189 RELOC_NUMBER (R_AARCH64_TLSDESC_CALL, 569)
 190 FAKE_RELOC (R_AARCH64_tlsdesc_max, 570)
 191
 192 /* Dynamic relocations */
 193 FAKE_RELOC (R_AARCH64_dyn_min, 1024)
 194
 195 /* Copy symbol at runtime.  */
 196 RELOC_NUMBER (R_AARCH64_COPY, 1024)
 197
 198 /* Create GOT entry.  */
 199 RELOC_NUMBER (R_AARCH64_GLOB_DAT, 1025)
 200
 201  /* Create PLT entry.  */
 202 RELOC_NUMBER (R_AARCH64_JUMP_SLOT, 1026)
 203
 204 /* Adjust by program base.  */
 205 RELOC_NUMBER (R_AARCH64_RELATIVE, 1027)
 206 RELOC_NUMBER (R_AARCH64_TLS_DTPMOD64, 1028)
 207 RELOC_NUMBER (R_AARCH64_TLS_DTPREL64, 1029)
 208 RELOC_NUMBER (R_AARCH64_TLS_TPREL64, 1030)
 209 RELOC_NUMBER (R_AARCH64_TLSDESC, 1031)
 210 FAKE_RELOC (R_AARCH64_dyn_max, 1032)
 211
 212 END_RELOC_NUMBERS (R_AARCH64_end)
 213
 214 #endif /* _ELF_AARCH64_H */