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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *  * Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  *  * Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in
     12  *    the documentation and/or other materials provided with the
     13  *    distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
     22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _ELF_H
     30 #define _ELF_H
     31 
     32 #include <sys/cdefs.h>
     33 
     34 #include <bits/auxvec.h>
     35 #include <bits/elf_arm.h>
     36 #include <bits/elf_arm64.h>
     37 #include <bits/elf_mips.h>
     38 #include <bits/elf_x86.h>
     39 #include <bits/elf_x86_64.h>
     40 #include <linux/elf.h>
     41 #include <linux/elf-em.h>
     42 
     43 /* http://www.sco.com/developers/gabi/latest/ch4.intro.html */
     44 typedef __u64 Elf32_Xword;
     45 typedef __s64 Elf32_Sxword;
     46 
     47 typedef struct {
     48   __u32 a_type;
     49   union {
     50     __u32 a_val;
     51   } a_un;
     52 } Elf32_auxv_t;
     53 
     54 typedef struct {
     55   __u64 a_type;
     56   union {
     57     __u64 a_val;
     58   } a_un;
     59 } Elf64_auxv_t;
     60 
     61 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */
     62 typedef struct {
     63   Elf32_Word ch_type;
     64   Elf32_Word ch_size;
     65   Elf32_Word ch_addralign;
     66 } Elf32_Chdr;
     67 typedef struct {
     68   Elf64_Word ch_type;
     69   Elf64_Word ch_reserved;
     70   Elf64_Xword ch_size;
     71   Elf64_Xword ch_addralign;
     72 } Elf64_Chdr;
     73 
     74 typedef struct {
     75   Elf32_Word l_name;
     76   Elf32_Word l_time_stamp;
     77   Elf32_Word l_checksum;
     78   Elf32_Word l_version;
     79   Elf32_Word l_flags;
     80 } Elf32_Lib;
     81 typedef struct {
     82   Elf64_Word l_name;
     83   Elf64_Word l_time_stamp;
     84   Elf64_Word l_checksum;
     85   Elf64_Word l_version;
     86   Elf64_Word l_flags;
     87 } Elf64_Lib;
     88 /* ElfW(Lib)::l_flags values. */
     89 #define LL_NONE 0x0
     90 #define LL_EXACT_MATCH 0x1
     91 #define LL_IGNORE_INT_VER 0x2
     92 #define LL_REQUIRE_MINOR 0x4
     93 #define LL_EXPORTS 0x8
     94 #define LL_DELAY_LOAD 0x10
     95 #define LL_DELTA 0x20
     96 
     97 typedef struct {
     98   Elf32_Xword m_value;
     99   Elf32_Word m_info;
    100   Elf32_Word m_poffset;
    101   Elf32_Half m_repeat;
    102   Elf32_Half m_stride;
    103 } Elf32_Move;
    104 typedef struct {
    105   Elf64_Xword m_value;
    106   Elf64_Xword m_info;
    107   Elf64_Xword m_poffset;
    108   Elf64_Half m_repeat;
    109   Elf64_Half m_stride;
    110 } Elf64_Move;
    111 
    112 typedef __u16 Elf32_Section;
    113 typedef __u16 Elf64_Section;
    114 
    115 typedef struct {
    116   Elf32_Half si_boundto;
    117   Elf32_Half si_flags;
    118 } Elf32_Syminfo;
    119 typedef struct {
    120   Elf64_Half si_boundto;
    121   Elf64_Half si_flags;
    122 } Elf64_Syminfo;
    123 /* ElfW(Syminfo)::si_boundto values. */
    124 #define SYMINFO_BT_SELF 0xffff
    125 #define SYMINFO_BT_PARENT 0xfffe
    126 /* ElfW(Syminfo)::si_flags values. */
    127 #define SYMINFO_FLG_DIRECT 0x1
    128 #define SYMINFO_FLG_PASSTHRU 0x2
    129 #define SYMINFO_FLG_COPY 0x4
    130 #define SYMINFO_FLG_LAZYLOAD 0x8
    131 
    132 typedef Elf32_Half Elf32_Versym;
    133 typedef Elf64_Half Elf64_Versym;
    134 
    135 typedef struct {
    136   Elf32_Half vd_version;
    137   Elf32_Half vd_flags;
    138   Elf32_Half vd_ndx;
    139   Elf32_Half vd_cnt;
    140   Elf32_Word vd_hash;
    141   Elf32_Word vd_aux;
    142   Elf32_Word vd_next;
    143 } Elf32_Verdef;
    144 
    145 typedef struct {
    146   Elf32_Word vda_name;
    147   Elf32_Word vda_next;
    148 } Elf32_Verdaux;
    149 
    150 typedef struct {
    151   Elf64_Half vd_version;
    152   Elf64_Half vd_flags;
    153   Elf64_Half vd_ndx;
    154   Elf64_Half vd_cnt;
    155   Elf64_Word vd_hash;
    156   Elf64_Word vd_aux;
    157   Elf64_Word vd_next;
    158 } Elf64_Verdef;
    159 
    160 typedef struct {
    161   Elf64_Word vda_name;
    162   Elf64_Word vda_next;
    163 } Elf64_Verdaux;
    164 
    165 typedef struct {
    166   Elf32_Half vn_version;
    167   Elf32_Half vn_cnt;
    168   Elf32_Word vn_file;
    169   Elf32_Word vn_aux;
    170   Elf32_Word vn_next;
    171 } Elf32_Verneed;
    172 
    173 typedef struct {
    174   Elf32_Word vna_hash;
    175   Elf32_Half vna_flags;
    176   Elf32_Half vna_other;
    177   Elf32_Word vna_name;
    178   Elf32_Word vna_next;
    179 } Elf32_Vernaux;
    180 
    181 typedef struct {
    182   Elf64_Half vn_version;
    183   Elf64_Half vn_cnt;
    184   Elf64_Word vn_file;
    185   Elf64_Word vn_aux;
    186   Elf64_Word vn_next;
    187 } Elf64_Verneed;
    188 
    189 typedef struct {
    190   Elf64_Word vna_hash;
    191   Elf64_Half vna_flags;
    192   Elf64_Half vna_other;
    193   Elf64_Word vna_name;
    194   Elf64_Word vna_next;
    195 } Elf64_Vernaux;
    196 
    197 /* Relocation table entry for relative (in section of type SHT_RELR). */
    198 typedef Elf32_Word Elf32_Relr;
    199 typedef Elf64_Xword Elf64_Relr;
    200 
    201 /* http://www.sco.com/developers/gabi/latest/ch5.dynamic.html */
    202 #define DF_ORIGIN     0x00000001
    203 #define DF_SYMBOLIC   0x00000002
    204 #define DF_TEXTREL    0x00000004
    205 #define DF_BIND_NOW   0x00000008
    206 #define DF_STATIC_TLS 0x00000010
    207 
    208 #define DF_1_NOW        0x00000001 /* Perform complete relocation processing. */
    209 #define DF_1_GLOBAL     0x00000002 /* implies RTLD_GLOBAL */
    210 #define DF_1_GROUP      0x00000004
    211 #define DF_1_NODELETE   0x00000008 /* implies RTLD_NODELETE */
    212 #define DF_1_LOADFLTR   0x00000010
    213 #define DF_1_INITFIRST  0x00000020
    214 #define DF_1_NOOPEN     0x00000040 /* Object can not be used with dlopen(3) */
    215 #define DF_1_ORIGIN     0x00000080
    216 #define DF_1_DIRECT     0x00000100
    217 #define DF_1_TRANS      0x00000200
    218 #define DF_1_INTERPOSE  0x00000400
    219 #define DF_1_NODEFLIB   0x00000800
    220 #define DF_1_NODUMP     0x00001000 /* Object cannot be dumped with dldump(3) */
    221 #define DF_1_CONFALT    0x00002000
    222 #define DF_1_ENDFILTEE  0x00004000
    223 #define DF_1_DISPRELDNE 0x00008000
    224 #define DF_1_DISPRELPND 0x00010000
    225 #define DF_1_NODIRECT   0x00020000
    226 #define DF_1_IGNMULDEF  0x00040000 /* Internal use */
    227 #define DF_1_NOKSYMS    0x00080000 /* Internal use */
    228 #define DF_1_NOHDR      0x00100000 /* Internal use */
    229 #define DF_1_EDITED     0x00200000
    230 #define DF_1_NORELOC    0x00400000 /* Internal use */
    231 #define DF_1_SYMINTPOSE 0x00800000
    232 #define DF_1_GLOBAUDIT  0x01000000
    233 #define DF_1_SINGLETON  0x02000000
    234 #define DF_1_STUB       0x04000000
    235 #define DF_1_PIE        0x08000000
    236 
    237 /* http://www.sco.com/developers/gabi/latest/ch5.dynamic.html */
    238 #define DT_BIND_NOW 24
    239 #define DT_INIT_ARRAY 25
    240 #define DT_FINI_ARRAY 26
    241 #define DT_INIT_ARRAYSZ 27
    242 #define DT_FINI_ARRAYSZ 28
    243 #define DT_RUNPATH 29
    244 #define DT_FLAGS 30
    245 /* glibc and BSD disagree for DT_ENCODING; glibc looks wrong. */
    246 #define DT_PREINIT_ARRAY 32
    247 #define DT_PREINIT_ARRAYSZ 33
    248 
    249 /* Experimental support for SHT_RELR sections. For details, see proposal
    250    at https://groups.google.com/forum/#!topic/generic-abi/bX460iggiKg */
    251 #define DT_RELR 0x6fffe000
    252 #define DT_RELRSZ 0x6fffe001
    253 #define DT_RELRENT 0x6fffe003
    254 #define DT_RELRCOUNT 0x6fffe005
    255 
    256 /* Android compressed rel/rela sections */
    257 #define DT_ANDROID_REL (DT_LOOS + 2)
    258 #define DT_ANDROID_RELSZ (DT_LOOS + 3)
    259 #define DT_ANDROID_RELA (DT_LOOS + 4)
    260 #define DT_ANDROID_RELASZ (DT_LOOS + 5)
    261 
    262 #define DT_GNU_HASH 0x6ffffef5
    263 #define DT_TLSDESC_PLT 0x6ffffef6
    264 #define DT_TLSDESC_GOT 0x6ffffef7
    265 
    266 /* http://www.sco.com/developers/gabi/latest/ch4.eheader.html */
    267 #define EI_ABIVERSION 8
    268 #undef EI_PAD
    269 #define EI_PAD 9
    270 
    271 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */
    272 #define ELFCOMPRESS_ZLIB 1
    273 #define ELFCOMPRESS_LOOS 0x60000000
    274 #define ELFCOMPRESS_HIOS 0x6fffffff
    275 #define ELFCOMPRESS_LOPROC 0x70000000
    276 #define ELFCOMPRESS_HIPROC 0x7fffffff
    277 
    278 /* http://www.sco.com/developers/gabi/latest/ch4.eheader.html */
    279 #define ELFOSABI_SYSV 0 /* Synonym for ELFOSABI_NONE used by valgrind. */
    280 #define ELFOSABI_HPUX 1
    281 #define ELFOSABI_NETBSD 2
    282 #define ELFOSABI_GNU 3 /* Synonym for ELFOSABI_LINUX. */
    283 #define ELFOSABI_SOLARIS 6
    284 #define ELFOSABI_AIX 7
    285 #define ELFOSABI_IRIX 8
    286 #define ELFOSABI_FREEBSD 9
    287 #define ELFOSABI_TRU64 10
    288 #define ELFOSABI_MODESTO 11
    289 #define ELFOSABI_OPENBSD 12
    290 #define ELFOSABI_OPENVMS 13
    291 #define ELFOSABI_NSK 14
    292 #define ELFOSABI_AROS 15
    293 #define ELFOSABI_FENIXOS 16
    294 #define ELFOSABI_CLOUDABI 17
    295 #define ELFOSABI_OPENVOS 18
    296 #define ELFOSABI_ARM_AEABI 64
    297 
    298 /* http://www.sco.com/developers/gabi/latest/ch4.reloc.html */
    299 #define ELF32_R_INFO(sym, type) ((((Elf32_Word)sym) << 8) | ((type) & 0xff))
    300 #define ELF64_R_INFO(sym, type) ((((Elf64_Xword)sym) << 32) | ((type) & 0xffffffff))
    301 
    302 /* http://www.sco.com/developers/gabi/latest/ch4.symtab.html */
    303 #undef ELF_ST_TYPE
    304 #define ELF_ST_TYPE(x) ((x) & 0xf)
    305 #define ELF_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
    306 #define ELF32_ST_INFO(b,t) ELF_ST_INFO(b,t)
    307 #define ELF64_ST_INFO(b,t) ELF_ST_INFO(b,t)
    308 
    309 /* http://www.sco.com/developers/gabi/latest/ch4.eheader.html */
    310 #define EM_S370 9
    311 #define EM_VPP500 17
    312 #define EM_960 19
    313 #define EM_V800 36
    314 #define EM_FR20 37
    315 #define EM_RH32 38
    316 #define EM_RCE 39
    317 #define EM_FAKE_ALPHA 41
    318 #define EM_TRICORE 44
    319 #define EM_ARC 45
    320 #define EM_H8_300H 47
    321 #define EM_H8S 48
    322 #define EM_H8_500 49
    323 #define EM_MIPS_X 51
    324 #define EM_COLDFIRE 52
    325 #define EM_68HC12 53
    326 #define EM_MMA 54
    327 #define EM_PCP 55
    328 #define EM_NCPU 56
    329 #define EM_NDR1 57
    330 #define EM_STARCORE 58
    331 #define EM_ME16 59
    332 #define EM_ST100 60
    333 #define EM_TINYJ 61
    334 #define EM_PDSP 63
    335 #define EM_PDP10 64
    336 #define EM_PDP11 65
    337 #define EM_FX66 66
    338 #define EM_ST9PLUS 67
    339 #define EM_ST7 68
    340 #define EM_68HC16 69
    341 #define EM_68HC11 70
    342 #define EM_68HC08 71
    343 #define EM_68HC05 72
    344 #define EM_SVX 73
    345 #define EM_ST19 74
    346 #define EM_VAX 75
    347 #define EM_JAVELIN 77
    348 #define EM_FIREPATH 78
    349 #define EM_ZSP 79
    350 #define EM_MMIX 80
    351 #define EM_HUANY 81
    352 #define EM_PRISM 82
    353 #define EM_AVR 83
    354 #define EM_FR30 84
    355 #define EM_D10V 85
    356 #define EM_D30V 86
    357 #define EM_V850 87
    358 #define EM_MN10200 90
    359 #define EM_PJ 91
    360 #define EM_ARC_COMPACT 93
    361 #define EM_XTENSA 94
    362 #define EM_VIDEOCORE 95
    363 #define EM_TMM_GPP 96
    364 #define EM_NS32K 97
    365 #define EM_TPC 98
    366 #define EM_SNP1K 99
    367 #define EM_ST200 100
    368 #define EM_IP2K 101
    369 #define EM_MAX 102
    370 #define EM_CR 103
    371 #define EM_F2MC16 104
    372 #define EM_MSP430 105
    373 #define EM_SE_C33 107
    374 #define EM_SEP 108
    375 #define EM_ARCA 109
    376 #define EM_UNICORE 110
    377 #define EM_EXCESS 111
    378 #define EM_DXP 112
    379 #define EM_CRX 114
    380 #define EM_XGATE 115
    381 #define EM_C166 116
    382 #define EM_M16C 117
    383 #define EM_DSPIC30F 118
    384 #define EM_CE 119
    385 #define EM_M32C 120
    386 #define EM_TSK3000 131
    387 #define EM_RS08 132
    388 #define EM_SHARC 133
    389 #define EM_ECOG2 134
    390 #define EM_SCORE7 135
    391 #define EM_DSP24 136
    392 #define EM_VIDEOCORE3 137
    393 #define EM_LATTICEMICO32 138
    394 #define EM_SE_C17 139
    395 #define EM_TI_C2000 141
    396 #define EM_TI_C5500 142
    397 #define EM_MMDSP_PLUS 160
    398 #define EM_CYPRESS_M8C 161
    399 #define EM_R32C 162
    400 #define EM_TRIMEDIA 163
    401 #define EM_QDSP6 164
    402 #define EM_8051 165
    403 #define EM_STXP7X 166
    404 #define EM_NDS32 167
    405 #define EM_ECOG1 168
    406 #define EM_ECOG1X 168
    407 #define EM_MAXQ30 169
    408 #define EM_XIMO16 170
    409 #define EM_MANIK 171
    410 #define EM_CRAYNV2 172
    411 #define EM_RX 173
    412 #define EM_METAG 174
    413 #define EM_MCST_ELBRUS 175
    414 #define EM_ECOG16 176
    415 #define EM_CR16 177
    416 #define EM_ETPU 178
    417 #define EM_SLE9X 179
    418 #define EM_L10M 180
    419 #define EM_K10M 181
    420 #define EM_AVR32 185
    421 #define EM_STM8 186
    422 #define EM_TILE64 187
    423 #define EM_CUDA 190
    424 #define EM_CLOUDSHIELD 192
    425 #define EM_COREA_1ST 193
    426 #define EM_COREA_2ND 194
    427 #define EM_ARC_COMPACT2 195
    428 #define EM_OPEN8 196
    429 #define EM_RL78 197
    430 #define EM_VIDEOCORE5 198
    431 #define EM_78KOR 199
    432 #define EM_56800EX 200
    433 #define EM_BA1 201
    434 #define EM_BA2 202
    435 #define EM_XCORE 203
    436 #define EM_MCHP_PIC 204
    437 #define EM_INTEL205 205
    438 #define EM_INTEL206 206
    439 #define EM_INTEL207 207
    440 #define EM_INTEL208 208
    441 #define EM_INTEL209 209
    442 #define EM_KM32 210
    443 #define EM_KMX32 211
    444 #define EM_KMX16 212
    445 #define EM_KMX8 213
    446 #define EM_KVARC 214
    447 #define EM_CDP 215
    448 #define EM_COGE 216
    449 #define EM_COOL 217
    450 #define EM_NORC 218
    451 #define EM_CSR_KALIMBA 219
    452 #define EM_Z80 220
    453 #define EM_VISIUM 221
    454 #define EM_FT32 222
    455 #define EM_MOXIE 223
    456 #define EM_AMDGPU 224
    457 #define EM_RISCV 243
    458 
    459 /* http://www.sco.com/developers/gabi/latest/ch4.eheader.html */
    460 #define ET_LOOS 0xfe00
    461 #define ET_HIOS 0xfeff
    462 
    463 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */
    464 #define GRP_COMDAT 0x1
    465 #define GRP_MASKOS   0x0ff00000
    466 #define GRP_MASKPROC 0xf0000000
    467 
    468 /* http://www.sco.com/developers/gabi/latest/ch5.pheader.html */
    469 #define PF_X 0x1
    470 #define PF_W 0x2
    471 #define PF_R 0x4
    472 #define PF_MASKOS   0x0ff00000
    473 #define PF_MASKPROC 0xf0000000
    474 
    475 #define PT_GNU_RELRO 0x6474e552
    476 
    477 #define STB_LOOS 10
    478 #define STB_HIOS 12
    479 #define STB_LOPROC 13
    480 #define STB_HIPROC 15
    481 
    482 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */
    483 #define SHF_MERGE 0x10
    484 #define SHF_STRINGS 0x20
    485 #define SHF_INFO_LINK 0x40
    486 #define SHF_LINK_ORDER 0x80
    487 #define SHF_OS_NONCONFORMING 0x100
    488 #define SHF_GROUP 0x200
    489 #define SHF_TLS 0x400
    490 #define SHF_COMPRESSED 0x800
    491 #define SHF_MASKOS 0x0ff00000
    492 #define SHF_MASKPROC 0xf0000000
    493 
    494 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */
    495 #define SHN_LOOS 0xff20
    496 #define SHN_HIOS 0xff3f
    497 #define SHN_XINDEX 0xffff
    498 
    499 /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */
    500 #define SHT_INIT_ARRAY 14
    501 #define SHT_FINI_ARRAY 15
    502 #define SHT_PREINIT_ARRAY 16
    503 #define SHT_GROUP 17
    504 #define SHT_SYMTAB_SHNDX 18
    505 #undef SHT_NUM
    506 #define SHT_NUM 19
    507 #define SHT_LOOS 0x60000000
    508 #define SHT_HIOS 0x6fffffff
    509 
    510 /* Experimental support for SHT_RELR sections. For details, see proposal
    511    at https://groups.google.com/forum/#!topic/generic-abi/bX460iggiKg */
    512 #define SHT_RELR 0x6fffff00
    513 
    514 /* http://www.sco.com/developers/gabi/latest/ch4.symtab.html */
    515 #define STN_UNDEF 0
    516 
    517 /* http://www.sco.com/developers/gabi/latest/ch4.symtab.html */
    518 #define STT_GNU_IFUNC 10
    519 #define STT_LOOS 10
    520 #define STT_HIOS 12
    521 #define STT_LOPROC 13
    522 #define STT_HIPROC 15
    523 
    524 /* http://www.sco.com/developers/gabi/latest/ch4.symtab.html */
    525 #define STV_DEFAULT 0
    526 #define STV_INTERNAL 1
    527 #define STV_HIDDEN 2
    528 #define STV_PROTECTED 3
    529 
    530 /* The kernel uses NT_PRFPREG but glibc also offers NT_FPREGSET */
    531 #define NT_FPREGSET NT_PRFPREG
    532 
    533 #define ELF_NOTE_GNU "GNU"
    534 
    535 #define NT_GNU_BUILD_ID 3
    536 
    537 #define VER_FLG_BASE 0x1
    538 #define VER_FLG_WEAK 0x2
    539 
    540 #define VER_NDX_LOCAL 0
    541 #define VER_NDX_GLOBAL 1
    542 
    543 #endif /* _ELF_H */
    544