elf/elf.h

   1 /* This file defines standard ELF types, structures, and macros.
   2 Copyright (C) 1995 Free Software Foundation, Inc.
   3 Contributed by Ian Lance Taylor (ian@cygnus.com).
   4
   5 This file is part of the GNU C Library.
   6
   7 The GNU C Library is free software; you can redistribute it and/or
   8 modify it under the terms of the GNU Library General Public License as
   9 published by the Free Software Foundation; either version 2 of the
  10 License, or (at your option) any later version.
  11
  12 The GNU C Library 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 GNU
  15 Library General Public License for more details.
  16
  17 You should have received a copy of the GNU Library General Public
  18 License along with the GNU C Library; see the file COPYING.LIB.  If
  19 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  20 Cambridge, MA 02139, USA.  */
  21
  22 #ifndef _ELF_H
  23 #define _ELF_H 1
  24
  25
  26 /* Standard ELF types.
  27
  28    Using __attribute__ mode ensures that gcc will choose the right for
  29    these types.  */
  30
  31 typedef unsigned int Elf32_Addr    __attribute__ ((mode (SI)));
  32 typedef unsigned int Elf32_Half    __attribute__ ((mode (HI)));
  33 typedef unsigned int Elf32_Off     __attribute__ ((mode (SI)));
  34 typedef          int Elf32_Sword   __attribute__ ((mode (SI)));
  35 typedef unsigned int Elf32_Word    __attribute__ ((mode (SI)));
  36
  37 /* The ELF file header.  This appears at the start of every ELF file.  */
  38
  39 #define EI_NIDENT (16)
  40
  41 typedef struct
  42 {
  43   unsigned char e_ident[EI_NIDENT];     /* Magic number and other info */
  44   Elf32_Half    e_type;                 /* Object file type */
  45   Elf32_Half    e_machine;              /* Architecture */
  46   Elf32_Word    e_version;              /* Object file version */
  47   Elf32_Addr    e_entry;                /* Entry point virtual address */
  48   Elf32_Off     e_phoff;                /* Program header table file offset */
  49   Elf32_Off     e_shoff;                /* Section header table file offset */
  50   Elf32_Word    e_flags;                /* Processor-specific flags */
  51   Elf32_Half    e_ehsize;               /* ELF header size in bytes */
  52   Elf32_Half    e_phentsize;            /* Program header table entry size */
  53   Elf32_Half    e_phnum;                /* Program header table entry count */
  54   Elf32_Half    e_shentsize;            /* Section header table entry size */
  55   Elf32_Half    e_shnum;                /* Section header table entry count */
  56   Elf32_Half    e_shstrndx;             /* Section header string table index */
  57 } Elf32_Ehdr;
  58
  59 /* Fields in the e_ident array.  The EI_* macros are indices into the
  60    array.  The macros under each EI_* macro are the values the byte
  61    may have.  */
  62
  63 #define EI_MAG0         0               /* File identification byte 0 index */
  64 #define ELFMAG0         0x7f            /* Magic number byte 0 */
  65
  66 #define EI_MAG1         1               /* File identification byte 1 index */
  67 #define ELFMAG1         'E'             /* Magic number byte 1 */
  68
  69 #define EI_MAG2         2               /* File identification byte 2 index */
  70 #define ELFMAG2         'L'             /* Magic number byte 2 */
  71
  72 #define EI_MAG3         3               /* File identification byte 3 index */
  73 #define ELFMAG3         'F'             /* Magic number byte 3 */
  74
  75 /* Conglomeration of the identification bytes, for easy testing as a word.  */
  76 #define ELFMAG          "\177ELF"
  77 #define SELFMAG         4
  78
  79 #define EI_CLASS        4               /* File class byte index */
  80 #define ELFCLASSNONE    0               /* Invalid class */
  81 #define ELFCLASS32      1               /* 32-bit objects */
  82 #define ELFCLASS64      2               /* 64-bit objects */
  83
  84 #define EI_DATA         5               /* Data encoding byte index */
  85 #define ELFDATANONE     0               /* Invalid data encoding */
  86 #define ELFDATA2LSB     1               /* 2's complement, little endian */
  87 #define ELFDATA2MSB     2               /* 2's complement, big endian */
  88
  89 #define EI_VERSION      6               /* File version byte index */
  90                                         /* Value must be EV_CURRENT */
  91
  92 #define EI_PAD          7               /* Byte index of padding bytes */
  93
  94 /* Legal values for e_type (object file type).  */
  95
  96 #define ET_NONE         0               /* No file type */
  97 #define ET_REL          1               /* Relocatable file */
  98 #define ET_EXEC         2               /* Executable file */
  99 #define ET_DYN          3               /* Shared object file */
 100 #define ET_CORE         4               /* Core file */
 101 #define ET_NUM          5               /* Number of defined types.  */
 102 #define ET_LOPROC       0xff00          /* Processor-specific */
 103 #define ET_HIPROC       0xffff          /* Processor-specific */
 104
 105 /* Legal values for e_machine (architecture).  */
 106
 107 #define EM_NONE         0               /* No machine */
 108 #define EM_M32          1               /* AT&T WE 32100 */
 109 #define EM_SPARC        2               /* SUN SPARC */
 110 #define EM_386          3               /* Intel 80386 */
 111 #define EM_68K          4               /* Motorola m68k family */
 112 #define EM_88K          5               /* Motorola m88k family */
 113 #define EM_486          6               /* Intel 80486 */
 114 #define EM_860          7               /* Intel 80860 */
 115 #define EM_MIPS         8               /* MIPS R3000 big-endian */
 116 #define EM_S370         9               /* Amdahl */
 117 #define EM_MIPS_RS4_BE 10               /* MIPS R4000 big-endian */
 118
 119 #define EM_SPARC64     11               /* SPARC v9 (not official) 64-bit */
 120
 121 #define EM_PARISC      15               /* HPPA */
 122
 123 /* If it is necessary to assign new unofficial EM_* values, please
 124    pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the
 125    chances of collision with official or non-GNU unofficial values.  */
 126
 127 /* Legal values for e_version (version).  */
 128
 129 #define EV_NONE         0               /* Invalid ELF version */
 130 #define EV_CURRENT      1               /* Current version */
 131
 132 /* Section header.  */
 133
 134 typedef struct
 135 {
 136   Elf32_Word    sh_name;                /* Section name (string tbl index) */
 137   Elf32_Word    sh_type;                /* Section type */
 138   Elf32_Word    sh_flags;               /* Section flags */
 139   Elf32_Addr    sh_addr;                /* Section virtual addr at execution */
 140   Elf32_Off     sh_offset;              /* Section file offset */
 141   Elf32_Word    sh_size;                /* Section size in bytes */
 142   Elf32_Word    sh_link;                /* Link to another section */
 143   Elf32_Word    sh_info;                /* Additional section information */
 144   Elf32_Word    sh_addralign;           /* Section alignment */
 145   Elf32_Word    sh_entsize;             /* Entry size if section holds table */
 146 } Elf32_Shdr;
 147
 148 /* Special section indices.  */
 149
 150 #define SHN_UNDEF       0               /* Undefined section */
 151 #define SHN_LORESERVE   0xff00          /* Start of reserved indices */
 152 #define SHN_LOPROC      0xff00          /* Start of processor-specific */
 153 #define SHN_HIPROC      0xff1f          /* End of processor-specific */
 154 #define SHN_ABS         0xfff1          /* Associated symbol is absolute */
 155 #define SHN_COMMON      0xfff2          /* Associated symbol is common */
 156 #define SHN_HIRESERVE   0xffff          /* End of reserved indices */
 157
 158 /* Legal values for sh_type (section type).  */
 159
 160 #define SHT_NULL        0               /* Section header table entry unused */
 161 #define SHT_PROGBITS    1               /* Program data */
 162 #define SHT_SYMTAB      2               /* Symbol table */
 163 #define SHT_STRTAB      3               /* String table */
 164 #define SHT_RELA        4               /* Relocation entries with addends */
 165 #define SHT_HASH        5               /* Symbol hash table */
 166 #define SHT_DYNAMIC     6               /* Dynamic linking information */
 167 #define SHT_NOTE        7               /* Notes */
 168 #define SHT_NOBITS      8               /* Program space with no data (bss) */
 169 #define SHT_REL         9               /* Relocation entries, no addends */
 170 #define SHT_SHLIB       10              /* Reserved */
 171 #define SHT_DYNSYM      11              /* Dynamic linker symbol table */
 172 #define SHT_NUM         12              /* Number of defined types.  */
 173 #define SHT_LOPROC      0x70000000      /* Start of processor-specific */
 174 #define SHT_HIPROC      0x7fffffff      /* End of processor-specific */
 175 #define SHT_LOUSER      0x80000000      /* Start of application-specific */
 176 #define SHT_HIUSER      0x8fffffff      /* End of application-specific */
 177
 178 /* Legal values for sh_flags (section flags).  */
 179
 180 #define SHF_WRITE       (1 << 0)        /* Writable */
 181 #define SHF_ALLOC       (1 << 1)        /* Occupies memory during execution */
 182 #define SHF_EXECINSTR   (1 << 2)        /* Executable */
 183 #define SHF_MASKPROC    0xf0000000      /* Processor-specific */
 184
 185 /* Symbol table entry.  */
 186
 187 typedef struct
 188 {
 189   Elf32_Word    st_name;                /* Symbol name (string tbl index) */
 190   Elf32_Addr    st_value;               /* Symbol value */
 191   Elf32_Word    st_size;                /* Symbol size */
 192   unsigned char st_info;                /* Symbol type and binding */
 193   unsigned char st_other;               /* No defined meaning, 0 */
 194   Elf32_Half    st_shndx;               /* Section index */
 195 } Elf32_Sym;
 196
 197 /* Special section index.  */
 198
 199 #define SHN_UNDEF       0               /* No section, undefined symbol.  */
 200
 201 /* How to extract and insert information held in the st_info field.  */
 202
 203 #define ELF32_ST_BIND(val)              (((unsigned char) (val)) >> 4)
 204 #define ELF32_ST_TYPE(val)              ((val) & 0xf)
 205 #define ELF32_ST_INFO(bind, type)       (((bind) << 4) + ((type) & 0xf))
 206
 207 /* Legal values for ST_BIND subfield of st_info (symbol binding).  */
 208
 209 #define STB_LOCAL       0               /* Local symbol */
 210 #define STB_GLOBAL      1               /* Global symbol */
 211 #define STB_WEAK        2               /* Weak symbol */
 212 #define STB_NUM         3               /* Number of defined types.  */
 213 #define STB_LOPROC      13              /* Start of processor-specific */
 214 #define STB_HIPROC      15              /* End of processor-specific */
 215
 216 /* Legal values for ST_TYPE subfield of st_info (symbol type).  */
 217
 218 #define STT_NOTYPE      0               /* Symbol type is unspecified */
 219 #define STT_OBJECT      1               /* Symbol is a data object */
 220 #define STT_FUNC        2               /* Symbol is a code object */
 221 #define STT_SECTION     3               /* Symbol associated with a section */
 222 #define STT_FILE        4               /* Symbol's name is file name */
 223 #define STT_NUM         5               /* Number of defined types.  */
 224 #define STT_LOPROC      13              /* Start of processor-specific */
 225 #define STT_HIPROC      15              /* End of processor-specific */
 226
 227
 228 /* Symbol table indices are found in the hash buckets and chain table
 229    of a symbol hash table section.  This special index value indicates
 230    the end of a chain, meaning no further symbols are found in that bucket.  */
 231
 232 #define STN_UNDEF       0               /* End of a chain.  */
 233
 234
 235 /* Relocation table entry without addend (in section of type SHT_REL).  */
 236
 237 typedef struct
 238 {
 239   Elf32_Addr    r_offset;               /* Address */
 240   Elf32_Word    r_info;                 /* Relocation type and symbol index */
 241 } Elf32_Rel;
 242
 243 /* Relocation table entry with addend (in section of type SHT_RELA).  */
 244
 245 typedef struct
 246 {
 247   Elf32_Addr    r_offset;               /* Address */
 248   Elf32_Word    r_info;                 /* Relocation type and symbol index */
 249   Elf32_Sword   r_addend;               /* Addend */
 250 } Elf32_Rela;
 251
 252 /* How to extract and insert information held in the r_info field.  */
 253
 254 #define ELF32_R_SYM(val)                ((val) >> 8)
 255 #define ELF32_R_TYPE(val)               ((val) & 0xff)
 256 #define ELF32_R_INFO(sym, type)         (((sym) << 8) + ((type) & 0xff))
 257
 258 /* Program segment header.  */
 259
 260 typedef struct {
 261   Elf32_Word    p_type;                 /* Segment type */
 262   Elf32_Off     p_offset;               /* Segment file offset */
 263   Elf32_Addr    p_vaddr;                /* Segment virtual address */
 264   Elf32_Addr    p_paddr;                /* Segment physical address */
 265   Elf32_Word    p_filesz;               /* Segment size in file */
 266   Elf32_Word    p_memsz;                /* Segment size in memory */
 267   Elf32_Word    p_flags;                /* Segment flags */
 268   Elf32_Word    p_align;                /* Segment alignment */
 269 } Elf32_Phdr;
 270
 271 /* Legal values for p_type (segment type).  */
 272
 273 #define PT_NULL         0               /* Program header table entry unused */
 274 #define PT_LOAD         1               /* Loadable program segment */
 275 #define PT_DYNAMIC      2               /* Dynamic linking information */
 276 #define PT_INTERP       3               /* Program interpreter */
 277 #define PT_NOTE         4               /* Auxiliary information */
 278 #define PT_SHLIB        5               /* Reserved */
 279 #define PT_PHDR         6               /* Entry for header table itself */
 280 #define PT_NUM          7               /* Number of defined types.  */
 281 #define PT_LOPROC       0x70000000      /* Start of processor-specific */
 282 #define PT_HIPROC       0x7fffffff      /* End of processor-specific */
 283
 284 /* Legal values for p_flags (segment flags).  */
 285
 286 #define PF_X            (1 << 0)        /* Segment is executable */
 287 #define PF_W            (1 << 1)        /* Segment is writable */
 288 #define PF_R            (1 << 2)        /* Segment is readable */
 289 #define PF_MASKPROC     0xf0000000      /* Processor-specific */
 290
 291 /* Dynamic section entry.  */
 292
 293 typedef struct
 294 {
 295   Elf32_Sword   d_tag;                  /* Dynamic entry type */
 296   union
 297     {
 298       Elf32_Word d_val;                 /* Integer value */
 299       Elf32_Addr d_ptr;                 /* Address value */
 300     } d_un;
 301 } Elf32_Dyn;
 302
 303 /* Legal values for d_tag (dynamic entry type).  */
 304
 305 #define DT_NULL         0               /* Marks end of dynamic section */
 306 #define DT_NEEDED       1               /* Name of needed library */
 307 #define DT_PLTRELSZ     2               /* Size in bytes of PLT relocs */
 308 #define DT_PLTGOT       3               /* Processor defined value */
 309 #define DT_HASH         4               /* Address of symbol hash table */
 310 #define DT_STRTAB       5               /* Address of string table */
 311 #define DT_SYMTAB       6               /* Address of symbol table */
 312 #define DT_RELA         7               /* Address of Rela relocs */
 313 #define DT_RELASZ       8               /* Total size of Rela relocs */
 314 #define DT_RELAENT      9               /* Size of one Rela reloc */
 315 #define DT_STRSZ        10              /* Size of string table */
 316 #define DT_SYMENT       11              /* Size of one symbol table entry */
 317 #define DT_INIT         12              /* Address of init function */
 318 #define DT_FINI         13              /* Address of termination function */
 319 #define DT_SONAME       14              /* Name of shared object */
 320 #define DT_RPATH        15              /* Library search path */
 321 #define DT_SYMBOLIC     16              /* Start symbol search here */
 322 #define DT_REL          17              /* Address of Rel relocs */
 323 #define DT_RELSZ        18              /* Total size of Rel relocs */
 324 #define DT_RELENT       19              /* Size of one Rel reloc */
 325 #define DT_PLTREL       20              /* Type of reloc in PLT */
 326 #define DT_DEBUG        21              /* For debugging; unspecified */
 327 #define DT_TEXTREL      22              /* Reloc might modify .text */
 328 #define DT_JMPREL       23              /* Address of PLT relocs */
 329 #define DT_NUM          24              /* Number used.  */
 330 #define DT_LOPROC       0x70000000      /* Start of processor-specific */
 331 #define DT_HIPROC       0x7fffffff      /* End of processor-specific */
 332
 333 /* Standard 64 bit ELF types.  */
 334
 335 typedef unsigned int Elf64_Addr    __attribute__ ((mode (DI)));
 336 typedef unsigned int Elf64_Half    __attribute__ ((mode (HI)));
 337 typedef unsigned int Elf64_Off     __attribute__ ((mode (DI)));
 338 typedef          int Elf64_Sword   __attribute__ ((mode (SI)));
 339 typedef          int Elf64_Sxword  __attribute__ ((mode (DI)));
 340 typedef unsigned int Elf64_Word    __attribute__ ((mode (SI)));
 341 typedef unsigned int Elf64_Xword   __attribute__ ((mode (DI)));
 342 typedef unsigned int Elf64_Byte    __attribute__ ((mode (QI)));
 343 typedef unsigned int Elf64_Section __attribute__ ((mode (HI)));
 344
 345 /* 64 bit ELF file header.  */
 346
 347 typedef struct
 348 {
 349   unsigned char e_ident[EI_NIDENT];     /* Magic number and other info */
 350   Elf64_Half    e_type;                 /* Object file type */
 351   Elf64_Half    e_machine;              /* Architecture */
 352   Elf64_Word    e_version;              /* Object file version */
 353   Elf64_Addr    e_entry;                /* Entry point virtual address */
 354   Elf64_Off     e_phoff;                /* Program header table file offset */
 355   Elf64_Off     e_shoff;                /* Section header table file offset */
 356   Elf64_Word    e_flags;                /* Processor-specific flags */
 357   Elf64_Half    e_ehsize;               /* ELF header size in bytes */
 358   Elf64_Half    e_phentsize;            /* Program header table entry size */
 359   Elf64_Half    e_phnum;                /* Program header table entry count */
 360   Elf64_Half    e_shentsize;            /* Section header table entry size */
 361   Elf64_Half    e_shnum;                /* Section header table entry count */
 362   Elf64_Half    e_shstrndx;             /* Section header string table index */
 363 } Elf64_Ehdr;
 364
 365 /* 64 bit section header.  */
 366
 367 typedef struct
 368 {
 369   Elf64_Word    sh_name;                /* Section name (string tbl index) */
 370   Elf64_Word    sh_type;                /* Section type */
 371   Elf64_Xword   sh_flags;               /* Section flags */
 372   Elf64_Addr    sh_addr;                /* Section virtual addr at execution */
 373   Elf64_Off     sh_offset;              /* Section file offset */
 374   Elf64_Xword   sh_size;                /* Section size in bytes */
 375   Elf64_Word    sh_link;                /* Link to another section */
 376   Elf64_Word    sh_info;                /* Additional section information */
 377   Elf64_Xword   sh_addralign;           /* Section alignment */
 378   Elf64_Xword   sh_entsize;             /* Entry size if section holds table */
 379 } Elf64_Shdr;
 380
 381 /* 64 bit symbol table entry.  */
 382
 383 typedef struct
 384 {
 385   Elf64_Word    st_name;                /* Symbol name (string tbl index) */
 386   Elf64_Byte    st_info;                /* Symbol type and binding */
 387   Elf64_Byte    st_other;               /* No defined meaning, 0 */
 388   Elf64_Section st_shndx;               /* Section index */
 389   Elf64_Addr    st_value;               /* Symbol value */
 390   Elf64_Xword   st_size;                /* Symbol size */
 391 } Elf64_Sym;
 392
 393 /* The 64 bit st_info field is the same as the 32 bit one.  */
 394
 395 #define ELF64_ST_BIND(val)              (((unsigned char) (val)) >> 4)
 396 #define ELF64_ST_TYPE(val)              ((val) & 0xf)
 397 #define ELF64_ST_INFO(bind, type)       (((bind) << 4) + ((type) & 0xf))
 398
 399 /* I have seen two different definitions of the Elf64_Rel and
 400    Elf64_Rela structures, so we'll leave them out until Novell (or
 401    whoever) gets their act together.  */
 402
 403 /* Auxiliary vector.  */
 404
 405 /* This vector is normally only used by the program interpreter.  The
 406    usual definition in an ABI supplement uses the name auxv_t.  The
 407    vector is not usually defined in a standard <elf.h> file, but it
 408    can't hurt.  We rename it to avoid conflicts.  The sizes of these
 409    types are an arrangement between the exec server and the program
 410    interpreter, so we don't fully specify them here.  */
 411
 412 typedef struct
 413 {
 414   int a_type;                           /* Entry type */
 415   union
 416     {
 417       long a_val;                       /* Integer value */
 418       void *a_ptr;                      /* Pointer value */
 419       void (*a_fcn) ();                 /* Function pointer value */
 420     } a_un;
 421 } Elf32_auxv_t;
 422
 423 /* Legal values for a_type (entry type).  */
 424
 425 #define AT_NULL         0               /* End of vector */
 426 #define AT_IGNORE       1               /* Entry should be ignored */
 427 #define AT_EXECFD       2               /* File descriptor of program */
 428 #define AT_PHDR         3               /* Program headers for program */
 429 #define AT_PHENT        4               /* Size of program header entry */
 430 #define AT_PHNUM        5               /* Number of program headers */
 431 #define AT_PAGESZ       6               /* System page size */
 432 #define AT_BASE         7               /* Base address of interpreter */
 433 #define AT_FLAGS        8               /* Flags */
 434 #define AT_ENTRY        9               /* Entry point of program */
 435 #define AT_NOTELF       10              /* Program is not ELF */
 436 #define AT_UID          11              /* Real uid */
 437 #define AT_EUID         12              /* Effective uid */
 438 #define AT_GID          13              /* Real gid */
 439 #define AT_EGID         14              /* Effective gid */
 440
 441 /* Intel 80386 specific definitions.  */
 442
 443 /* i386 relocs.  */
 444
 445 #define R_386_NONE      0               /* No reloc */
 446 #define R_386_32        1               /* Direct 32 bit  */
 447 #define R_386_PC32      2               /* PC relative 32 bit */
 448 #define R_386_GOT32     3               /* 32 bit GOT entry */
 449 #define R_386_PLT32     4               /* 32 bit PLT address */
 450 #define R_386_COPY      5               /* Copy symbol at runtime */
 451 #define R_386_GLOB_DAT  6               /* Create GOT entry */
 452 #define R_386_JMP_SLOT  7               /* Create PLT entry */
 453 #define R_386_RELATIVE  8               /* Adjust by program base */
 454 #define R_386_GOTOFF    9               /* 32 bit offset to GOT */
 455 #define R_386_GOTPC     10              /* 32 bit PC relative offset to GOT */
 456
 457 /* SUN SPARC specific definitions.  */
 458
 459 /* SPARC relocs.  */
 460
 461 #define R_SPARC_NONE    0               /* No reloc */
 462 #define R_SPARC_8       1               /* Direct 8 bit */
 463 #define R_SPARC_16      2               /* Direct 16 bit */
 464 #define R_SPARC_32      3               /* Direct 32 bit */
 465 #define R_SPARC_DISP8   4               /* PC relative 8 bit */
 466 #define R_SPARC_DISP16  5               /* PC relative 16 bit */
 467 #define R_SPARC_DISP32  6               /* PC relative 32 bit */
 468 #define R_SPARC_WDISP30 7               /* PC relative 30 bit shifted */
 469 #define R_SPARC_WDISP22 8               /* PC relative 22 bit shifted */
 470 #define R_SPARC_HI22    9               /* High 22 bit */
 471 #define R_SPARC_22      10              /* Direct 22 bit */
 472 #define R_SPARC_13      11              /* Direct 13 bit */
 473 #define R_SPARC_LO10    12              /* Truncated 10 bit */
 474 #define R_SPARC_GOT10   13              /* Truncated 10 bit GOT entry */
 475 #define R_SPARC_GOT13   14              /* 13 bit GOT entry */
 476 #define R_SPARC_GOT22   15              /* 22 bit GOT entry shifted */
 477 #define R_SPARC_PC10    16              /* PC relative 10 bit truncated */
 478 #define R_SPARC_PC22    17              /* PC relative 22 bit shifted */
 479 #define R_SPARC_WPLT30  18              /* 30 bit PC relative PLT address */
 480 #define R_SPARC_COPY    19              /* Copy symbol at runtime */
 481 #define R_SPARC_GLOB_DAT 20             /* Create GOT entry */
 482 #define R_SPARC_JMP_SLOT 21             /* Create PLT entry */
 483 #define R_SPARC_RELATIVE 22             /* Adjust by program base */
 484 #define R_SPARC_UA32    23              /* Direct 32 bit unaligned */
 485
 486 /* MIPS R3000 specific definitions.  */
 487
 488 /* Legal values for e_flags field of Elf32_Ehdr.  */
 489
 490 #define EF_MIPS_NOREORDER 1             /* A .noreorder directive was used */
 491 #define EF_MIPS_PIC       2             /* Contains PIC code */
 492 #define EF_MIPS_CPIC      4             /* Uses PIC calling sequence */
 493 #define EF_MIPS_ARCH      0xf0000000    /* MIPS architecture level */
 494
 495 /* Special section indices.  */
 496
 497 #define SHN_MIPS_ACOMMON 0xff00         /* Allocated common symbols */
 498 #define SHN_MIPS_SCOMMON 0xff03         /* Small common symbols */
 499 #define SHN_MIPS_SUNDEFINED 0xff04      /* Small undefined symbols */
 500
 501 /* Legal values for sh_type field of Elf32_Shdr.  */
 502
 503 #define SHT_MIPS_LIBLIST  0x70000000    /* Shared objects used in link */
 504 #define SHT_MIPS_CONFLICT 0x70000002    /* Conflicting symbols */
 505 #define SHT_MIPS_GPTAB    0x70000003    /* Global data area sizes */
 506 #define SHT_MIPS_UCODE    0x70000004    /* Reserved for SGI/MIPS compilers */
 507 #define SHT_MIPS_DEBUG    0x70000005    /* MIPS ECOFF debugging information */
 508 #define SHT_MIPS_REGINFO  0x70000006    /* Register usage information */
 509
 510 /* Legal values for sh_flags field of Elf32_Shdr.  */
 511
 512 #define SHF_MIPS_GPREL  0x10000000      /* Must be part of global data area */
 513
 514 /* Entries found in sections of type SHT_MIPS_GPTAB.  */
 515
 516 typedef union
 517 {
 518   struct
 519     {
 520       Elf32_Word gt_current_g_value;    /* -G value used for compilation */
 521       Elf32_Word gt_unused;             /* Not used */
 522     } gt_header;                        /* First entry in section */
 523   struct
 524     {
 525       Elf32_Word gt_g_value;            /* If this value were used for -G */
 526       Elf32_Word gt_bytes;              /* This many bytes would be used */
 527     } gt_entry;                         /* Subsequent entries in section */
 528 } Elf32_gptab;
 529
 530 /* Entry found in sections of type SHT_MIPS_REGINFO.  */
 531
 532 typedef struct
 533 {
 534   Elf32_Word    ri_gprmask;             /* General registers used */
 535   Elf32_Word    ri_cprmask[4];          /* Coprocessor registers used */
 536   Elf32_Sword   ri_gp_value;            /* $gp register value */
 537 } Elf32_RegInfo;
 538
 539 /* MIPS relocs.  */
 540
 541 #define R_MIPS_NONE     0               /* No reloc */
 542 #define R_MIPS_16       1               /* Direct 16 bit */
 543 #define R_MIPS_32       2               /* Direct 32 bit */
 544 #define R_MIPS_REL32    3               /* PC relative 32 bit */
 545 #define R_MIPS_26       4               /* Direct 26 bit shifted */
 546 #define R_MIPS_HI16     5               /* High 16 bit */
 547 #define R_MIPS_LO16     6               /* Low 16 bit */
 548 #define R_MIPS_GPREL16  7               /* GP relative 16 bit */
 549 #define R_MIPS_LITERAL  8               /* 16 bit literal entry */
 550 #define R_MIPS_GOT16    9               /* 16 bit GOT entry */
 551 #define R_MIPS_PC16     10              /* PC relative 16 bit */
 552 #define R_MIPS_CALL16   11              /* 16 bit GOT entry for function */
 553 #define R_MIPS_GPREL32  12              /* GP relative 32 bit */
 554
 555 /* Legal values for p_type field of Elf32_Phdr.  */
 556
 557 #define PT_MIPS_REGINFO 0x70000000      /* Register usage information */
 558
 559 /* Legal values for d_tag field of Elf32_Dyn.  */
 560
 561 #define DT_MIPS_RLD_VERSION  0x70000001 /* Runtime linker interface version */
 562 #define DT_MIPS_TIME_STAMP   0x70000002 /* Timestamp */
 563 #define DT_MIPS_ICHECKSUM    0x70000003 /* Checksum */
 564 #define DT_MIPS_IVERSION     0x70000004 /* Version string (string tbl index) */
 565 #define DT_MIPS_FLAGS        0x70000005 /* Flags */
 566 #define DT_MIPS_BASE_ADDRESS 0x70000006 /* Base address */
 567 #define DT_MIPS_CONFLICT     0x70000008 /* Address of CONFLICT section */
 568 #define DT_MIPS_LIBLIST      0x70000009 /* Address of LIBLIST section */
 569 #define DT_MIPS_LOCAL_GOTNO  0x7000000a /* Number of local GOT entries */
 570 #define DT_MIPS_CONFLICTNO   0x7000000b /* Number of CONFLICT entries */
 571 #define DT_MIPS_LIBLISTNO    0x70000010 /* Number of LIBLIST entries */
 572 #define DT_MIPS_SYMTABNO     0x70000011 /* Number of DYNSYM entries */
 573 #define DT_MIPS_UNREFEXTNO   0x70000012 /* First external DYNSYM */
 574 #define DT_MIPS_GOTSYM       0x70000013 /* First GOT entry in DYNSYM */
 575 #define DT_MIPS_HIPAGENO     0x70000014 /* Number of GOT page table entries */
 576
 577 /* Legal values for DT_MIPS_FLAG Elf32_Dyn entry.  */
 578
 579 #define RHF_NONE                   0            /* No flags */
 580 #define RHF_QUICKSTART             (1 << 0)     /* Use quickstart */
 581 #define RHF_NOTPOT                 (1 << 1)     /* Hash size not power of 2 */
 582 #define RHF_NO_LIBRARY_REPLACEMENT (1 << 2)     /* Ignore LD_LIBRARY_PATH */
 583
 584 /* Entries found in sections of type SHT_MIPS_LIBLIST.  */
 585
 586 typedef struct
 587 {
 588   Elf32_Word    l_name;                 /* Name (string table index) */
 589   Elf32_Word    l_time_stamp;           /* Timestamp */
 590   Elf32_Word    l_checksum;             /* Checksum */
 591   Elf32_Word    l_version;              /* Interface version */
 592   Elf32_Word    l_flags;                /* Flags */
 593 } Elf32_Lib;
 594
 595 /* Legal values for l_flags.  */
 596
 597 #define LL_EXACT_MATCH    (1 << 0)      /* Require exact match */
 598 #define LL_IGNORE_INT_VER (1 << 1)      /* Ignore interface version */
 599
 600 /* Entries found in sections of type SHT_MIPS_CONFLICT.  */
 601
 602 typedef Elf32_Addr Elf32_Conflict;
 603
 604
 605 #endif  /* elf.h */