contrib/file/src/readelf.h

   1 /*
   2  * Copyright (c) Christos Zoulas 2003.
   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  * 1. Redistributions of source code must retain the above copyright
   9  *    notice immediately at the beginning of the file, without modification,
  10  *    this list of conditions, and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  19  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  */
  27 /*
  28  * @(#)Id: readelf.h,v 1.9 2002/05/16 18:45:56 christos Exp
  29  *
  30  * Provide elf data structures for non-elf machines, allowing file
  31  * non-elf hosts to determine if an elf binary is stripped.
  32  * Note: cobbled from the linux header file, with modifications
  33  */
  34 #ifndef __fake_elf_h__
  35 #define __fake_elf_h__
  36
  37 #if HAVE_STDINT_H
  38 #include <stdint.h>
  39 #endif
  40
  41 typedef uint32_t        Elf32_Addr;
  42 typedef uint32_t        Elf32_Off;
  43 typedef uint16_t        Elf32_Half;
  44 typedef uint32_t        Elf32_Word;
  45 typedef uint8_t         Elf32_Char;
  46
  47 typedef uint64_t        Elf64_Addr;
  48 typedef uint64_t        Elf64_Off;
  49 typedef uint64_t        Elf64_Xword;
  50 typedef uint16_t        Elf64_Half;
  51 typedef uint32_t        Elf64_Word;
  52 typedef uint8_t         Elf64_Char;
  53
  54 #define EI_NIDENT       16
  55
  56 typedef struct {
  57         Elf32_Word      a_type;         /* 32-bit id */
  58         Elf32_Word      a_v;            /* 32-bit id */
  59 } Aux32Info;
  60
  61 typedef struct {
  62         Elf64_Xword     a_type;         /* 64-bit id */
  63         Elf64_Xword     a_v;            /* 64-bit id */
  64 } Aux64Info;
  65
  66 #define AT_NULL   0     /* end of vector */
  67 #define AT_IGNORE 1     /* entry should be ignored */
  68 #define AT_EXECFD 2     /* file descriptor of program */
  69 #define AT_PHDR   3     /* program headers for program */
  70 #define AT_PHENT  4     /* size of program header entry */
  71 #define AT_PHNUM  5     /* number of program headers */
  72 #define AT_PAGESZ 6     /* system page size */
  73 #define AT_BASE   7     /* base address of interpreter */
  74 #define AT_FLAGS  8     /* flags */
  75 #define AT_ENTRY  9     /* entry point of program */
  76 #define AT_LINUX_NOTELF 10    /* program is not ELF */
  77 #define AT_LINUX_UID    11    /* real uid */
  78 #define AT_LINUX_EUID   12    /* effective uid */
  79 #define AT_LINUX_GID    13    /* real gid */
  80 #define AT_LINUX_EGID   14    /* effective gid */
  81 #define AT_LINUX_PLATFORM 15  /* string identifying CPU for optimizations */
  82 #define AT_LINUX_HWCAP  16    /* arch dependent hints at CPU capabilities */
  83 #define AT_LINUX_CLKTCK 17    /* frequency at which times() increments */
  84 /* AT_* values 18 through 22 are reserved */
  85 #define AT_LINUX_SECURE 23   /* secure mode boolean */
  86 #define AT_LINUX_BASE_PLATFORM 24     /* string identifying real platform, may
  87                                  * differ from AT_PLATFORM. */
  88 #define AT_LINUX_RANDOM 25    /* address of 16 random bytes */
  89 #define AT_LINUX_HWCAP2 26    /* extension of AT_HWCAP */
  90 #define AT_LINUX_EXECFN 31   /* filename of program */
  91
  92 typedef struct {
  93     Elf32_Char  e_ident[EI_NIDENT];
  94     Elf32_Half  e_type;
  95     Elf32_Half  e_machine;
  96     Elf32_Word  e_version;
  97     Elf32_Addr  e_entry;  /* Entry point */
  98     Elf32_Off   e_phoff;
  99     Elf32_Off   e_shoff;
 100     Elf32_Word  e_flags;
 101     Elf32_Half  e_ehsize;
 102     Elf32_Half  e_phentsize;
 103     Elf32_Half  e_phnum;
 104     Elf32_Half  e_shentsize;
 105     Elf32_Half  e_shnum;
 106     Elf32_Half  e_shstrndx;
 107 } Elf32_Ehdr;
 108
 109 typedef struct {
 110     Elf64_Char  e_ident[EI_NIDENT];
 111     Elf64_Half  e_type;
 112     Elf64_Half  e_machine;
 113     Elf64_Word  e_version;
 114     Elf64_Addr  e_entry;  /* Entry point */
 115     Elf64_Off   e_phoff;
 116     Elf64_Off   e_shoff;
 117     Elf64_Word  e_flags;
 118     Elf64_Half  e_ehsize;
 119     Elf64_Half  e_phentsize;
 120     Elf64_Half  e_phnum;
 121     Elf64_Half  e_shentsize;
 122     Elf64_Half  e_shnum;
 123     Elf64_Half  e_shstrndx;
 124 } Elf64_Ehdr;
 125
 126 /* e_type */
 127 #define ET_REL          1
 128 #define ET_EXEC         2
 129 #define ET_DYN          3
 130 #define ET_CORE         4
 131
 132 /* e_machine (used only for SunOS 5.x hardware capabilities) */
 133 #define EM_SPARC        2
 134 #define EM_386          3
 135 #define EM_SPARC32PLUS  18
 136 #define EM_SPARCV9      43
 137 #define EM_IA_64        50
 138 #define EM_AMD64        62
 139
 140 /* sh_type */
 141 #define SHT_SYMTAB      2
 142 #define SHT_NOTE        7
 143 #define SHT_DYNSYM      11
 144 #define SHT_SUNW_cap    0x6ffffff5      /* SunOS 5.x hw/sw capabilities */
 145
 146 /* elf type */
 147 #define ELFDATANONE     0               /* e_ident[EI_DATA] */
 148 #define ELFDATA2LSB     1
 149 #define ELFDATA2MSB     2
 150
 151 /* elf class */
 152 #define ELFCLASSNONE    0
 153 #define ELFCLASS32      1
 154 #define ELFCLASS64      2
 155
 156 /* magic number */
 157 #define EI_MAG0         0               /* e_ident[] indexes */
 158 #define EI_MAG1         1
 159 #define EI_MAG2         2
 160 #define EI_MAG3         3
 161 #define EI_CLASS        4
 162 #define EI_DATA         5
 163 #define EI_VERSION      6
 164 #define EI_PAD          7
 165
 166 #define ELFMAG0         0x7f            /* EI_MAG */
 167 #define ELFMAG1         'E'
 168 #define ELFMAG2         'L'
 169 #define ELFMAG3         'F'
 170 #define ELFMAG          "\177ELF"
 171
 172 #define OLFMAG1         'O'
 173 #define OLFMAG          "\177OLF"
 174
 175 typedef struct {
 176     Elf32_Word  p_type;
 177     Elf32_Off   p_offset;
 178     Elf32_Addr  p_vaddr;
 179     Elf32_Addr  p_paddr;
 180     Elf32_Word  p_filesz;
 181     Elf32_Word  p_memsz;
 182     Elf32_Word  p_flags;
 183     Elf32_Word  p_align;
 184 } Elf32_Phdr;
 185
 186 typedef struct {
 187     Elf64_Word  p_type;
 188     Elf64_Word  p_flags;
 189     Elf64_Off   p_offset;
 190     Elf64_Addr  p_vaddr;
 191     Elf64_Addr  p_paddr;
 192     Elf64_Xword p_filesz;
 193     Elf64_Xword p_memsz;
 194     Elf64_Xword p_align;
 195 } Elf64_Phdr;
 196
 197 #define PT_NULL         0               /* p_type */
 198 #define PT_LOAD         1
 199 #define PT_DYNAMIC      2
 200 #define PT_INTERP       3
 201 #define PT_NOTE         4
 202 #define PT_SHLIB        5
 203 #define PT_PHDR         6
 204 #define PT_NUM          7
 205
 206 typedef struct {
 207     Elf32_Word  sh_name;
 208     Elf32_Word  sh_type;
 209     Elf32_Word  sh_flags;
 210     Elf32_Addr  sh_addr;
 211     Elf32_Off   sh_offset;
 212     Elf32_Word  sh_size;
 213     Elf32_Word  sh_link;
 214     Elf32_Word  sh_info;
 215     Elf32_Word  sh_addralign;
 216     Elf32_Word  sh_entsize;
 217 } Elf32_Shdr;
 218
 219 typedef struct {
 220     Elf64_Word  sh_name;
 221     Elf64_Word  sh_type;
 222     Elf64_Off   sh_flags;
 223     Elf64_Addr  sh_addr;
 224     Elf64_Off   sh_offset;
 225     Elf64_Off   sh_size;
 226     Elf64_Word  sh_link;
 227     Elf64_Word  sh_info;
 228     Elf64_Off   sh_addralign;
 229     Elf64_Off   sh_entsize;
 230 } Elf64_Shdr;
 231
 232 #define NT_NETBSD_CORE_PROCINFO         1
 233 #define NT_NETBSD_CORE_AUXV             2
 234
 235 struct NetBSD_elfcore_procinfo {
 236         /* Version 1 fields start here. */
 237         uint32_t        cpi_version;            /* our version */
 238         uint32_t        cpi_cpisize;            /* sizeof(this struct) */
 239         uint32_t        cpi_signo;              /* killing signal */
 240         uint32_t        cpi_sigcode;            /* signal code */
 241         uint32_t        cpi_sigpend[4];         /* pending signals */
 242         uint32_t        cpi_sigmask[4];         /* blocked signals */
 243         uint32_t        cpi_sigignore[4];       /* ignored signals */
 244         uint32_t        cpi_sigcatch[4];        /* caught signals */
 245         int32_t         cpi_pid;                /* process ID */
 246         int32_t         cpi_ppid;               /* parent process ID */
 247         int32_t         cpi_pgrp;               /* process group ID */
 248         int32_t         cpi_sid;                /* session ID */
 249         uint32_t        cpi_ruid;               /* real user ID */
 250         uint32_t        cpi_euid;               /* effective user ID */
 251         uint32_t        cpi_svuid;              /* saved user ID */
 252         uint32_t        cpi_rgid;               /* real group ID */
 253         uint32_t        cpi_egid;               /* effective group ID */
 254         uint32_t        cpi_svgid;              /* saved group ID */
 255         uint32_t        cpi_nlwps;              /* number of LWPs */
 256         int8_t          cpi_name[32];           /* copy of p->p_comm */
 257         /* Add version 2 fields below here. */
 258         int32_t         cpi_siglwp;     /* LWP target of killing signal */
 259 };
 260
 261 /* Note header in a PT_NOTE section */
 262 typedef struct elf_note {
 263     Elf32_Word  n_namesz;       /* Name size */
 264     Elf32_Word  n_descsz;       /* Content size */
 265     Elf32_Word  n_type;         /* Content type */
 266 } Elf32_Nhdr;
 267
 268 typedef struct {
 269     Elf64_Word  n_namesz;
 270     Elf64_Word  n_descsz;
 271     Elf64_Word  n_type;
 272 } Elf64_Nhdr;
 273
 274 /* Notes used in ET_CORE */
 275 #define NT_PRSTATUS     1
 276 #define NT_PRFPREG      2
 277 #define NT_PRPSINFO     3
 278 #define NT_PRXREG       4
 279 #define NT_TASKSTRUCT   4
 280 #define NT_PLATFORM     5
 281 #define NT_AUXV         6
 282
 283 /* Note types used in executables */
 284 /* NetBSD executables (name = "NetBSD") */
 285 #define NT_NETBSD_VERSION       1
 286 #define NT_NETBSD_EMULATION     2
 287 #define NT_FREEBSD_VERSION      1
 288 #define NT_OPENBSD_VERSION      1
 289 #define NT_DRAGONFLY_VERSION    1
 290 /*
 291  * GNU executables (name = "GNU")
 292  * word[0]: GNU OS tags
 293  * word[1]: major version
 294  * word[2]: minor version
 295  * word[3]: tiny version
 296  */
 297 #define NT_GNU_VERSION          1
 298
 299 /* GNU OS tags */
 300 #define GNU_OS_LINUX    0
 301 #define GNU_OS_HURD     1
 302 #define GNU_OS_SOLARIS  2
 303 #define GNU_OS_KFREEBSD 3
 304 #define GNU_OS_KNETBSD  4
 305
 306 /*
 307  * GNU Hardware capability information
 308  * word[0]: Number of entries
 309  * word[1]: Bitmask of enabled entries
 310  * Followed by a byte id, and a NUL terminated string per entry
 311  */
 312 #define NT_GNU_HWCAP            2
 313
 314 /*
 315  * GNU Build ID generated by ld
 316  * 160 bit SHA1 [default]
 317  * 128 bit md5 or uuid
 318  */
 319 #define NT_GNU_BUILD_ID         3
 320
 321 /*
 322  * NetBSD-specific note type: PaX.
 323  * There should be 1 NOTE per executable.
 324  * name: PaX\0
 325  * namesz: 4
 326  * desc:
 327  *      word[0]: capability bitmask
 328  * descsz: 4
 329  */
 330 #define NT_NETBSD_PAX           3
 331 #define NT_NETBSD_PAX_MPROTECT          0x01    /* Force enable Mprotect */
 332 #define NT_NETBSD_PAX_NOMPROTECT        0x02    /* Force disable Mprotect */
 333 #define NT_NETBSD_PAX_GUARD             0x04    /* Force enable Segvguard */
 334 #define NT_NETBSD_PAX_NOGUARD           0x08    /* Force disable Servguard */
 335 #define NT_NETBSD_PAX_ASLR              0x10    /* Force enable ASLR */
 336 #define NT_NETBSD_PAX_NOASLR            0x20    /* Force disable ASLR */
 337
 338 /*
 339  * NetBSD-specific note type: MACHINE_ARCH.
 340  * There should be 1 NOTE per executable.
 341  * name:        NetBSD\0
 342  * namesz:      7
 343  * desc:        string
 344  * descsz:      variable
 345  */
 346 #define NT_NETBSD_MARCH         5
 347
 348 /*
 349  * NetBSD-specific note type: COMPILER MODEL.
 350  * There should be 1 NOTE per executable.
 351  * name:        NetBSD\0
 352  * namesz:      7
 353  * desc:        string
 354  * descsz:      variable
 355  */
 356 #define NT_NETBSD_CMODEL        6
 357
 358 /*
 359  * FreeBSD specific notes
 360  */
 361 #define NT_FREEBSD_PROCSTAT_AUXV        16
 362
 363 #if !defined(ELFSIZE) && defined(ARCH_ELFSIZE)
 364 #define ELFSIZE ARCH_ELFSIZE
 365 #endif
 366 /* SunOS 5.x hardware/software capabilities */
 367 typedef struct {
 368         Elf32_Word      c_tag;
 369         union {
 370                 Elf32_Word      c_val;
 371                 Elf32_Addr      c_ptr;
 372         } c_un;
 373 } Elf32_Cap;
 374
 375 typedef struct {
 376         Elf64_Xword     c_tag;
 377         union {
 378                 Elf64_Xword     c_val;
 379                 Elf64_Addr      c_ptr;
 380         } c_un;
 381 } Elf64_Cap;
 382
 383 /* SunOS 5.x hardware/software capability tags */
 384 #define CA_SUNW_NULL    0
 385 #define CA_SUNW_HW_1    1
 386 #define CA_SUNW_SF_1    2
 387
 388 /* SunOS 5.x software capabilities */
 389 #define SF1_SUNW_FPKNWN 0x01
 390 #define SF1_SUNW_FPUSED 0x02
 391 #define SF1_SUNW_MASK   0x03
 392
 393 /* SunOS 5.x hardware capabilities: sparc */
 394 #define AV_SPARC_MUL32          0x0001
 395 #define AV_SPARC_DIV32          0x0002
 396 #define AV_SPARC_FSMULD         0x0004
 397 #define AV_SPARC_V8PLUS         0x0008
 398 #define AV_SPARC_POPC           0x0010
 399 #define AV_SPARC_VIS            0x0020
 400 #define AV_SPARC_VIS2           0x0040
 401 #define AV_SPARC_ASI_BLK_INIT   0x0080
 402 #define AV_SPARC_FMAF           0x0100
 403 #define AV_SPARC_FJFMAU         0x4000
 404 #define AV_SPARC_IMA            0x8000
 405
 406 /* SunOS 5.x hardware capabilities: 386 */
 407 #define AV_386_FPU              0x00000001
 408 #define AV_386_TSC              0x00000002
 409 #define AV_386_CX8              0x00000004
 410 #define AV_386_SEP              0x00000008
 411 #define AV_386_AMD_SYSC         0x00000010
 412 #define AV_386_CMOV             0x00000020
 413 #define AV_386_MMX              0x00000040
 414 #define AV_386_AMD_MMX          0x00000080
 415 #define AV_386_AMD_3DNow        0x00000100
 416 #define AV_386_AMD_3DNowx       0x00000200
 417 #define AV_386_FXSR             0x00000400
 418 #define AV_386_SSE              0x00000800
 419 #define AV_386_SSE2             0x00001000
 420 #define AV_386_PAUSE            0x00002000
 421 #define AV_386_SSE3             0x00004000
 422 #define AV_386_MON              0x00008000
 423 #define AV_386_CX16             0x00010000
 424 #define AV_386_AHF              0x00020000
 425 #define AV_386_TSCP             0x00040000
 426 #define AV_386_AMD_SSE4A        0x00080000
 427 #define AV_386_POPCNT           0x00100000
 428 #define AV_386_AMD_LZCNT        0x00200000
 429 #define AV_386_SSSE3            0x00400000
 430 #define AV_386_SSE4_1           0x00800000
 431 #define AV_386_SSE4_2           0x01000000
 432
 433 #endif