compiler/include/dos/elf.h

   1 #ifndef DOS_ELF_H
   2 #define DOS_ELF_H
   3
   4 /*
   5     Copyright © 1995-2011, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8     Desc: Definition of ELF file structures.
   9     Lang: english
  10 */
  11
  12 #include <exec/types.h>
  13
  14 /*
  15  * Define one of ELF_64BIT or ELF_32BIT in your code if you want to enforce specific
  16  * version of ELF structures. Otherwize it fails back to your native machine's size.
  17  */
  18 #ifdef ELF_64BIT
  19 #define elf_ptr_t       UQUAD
  20 #define elf_uintptr_t   UQUAD
  21 #define elf_intptr_t    QUAD
  22 #endif
  23
  24 #ifdef ELF_32BIT
  25 #define elf_ptr_t       ULONG
  26 #define elf_uintptr_t   ULONG
  27 #define elf_intptr_t    LONG
  28 #endif
  29
  30 #ifndef elf_ptr_t
  31 #define elf_ptr_t       APTR
  32 #define elf_uintptr_t   IPTR
  33 #define elf_intptr_t    SIPTR
  34
  35 #if (__WORDSIZE == 64)
  36 #define ELF_64BIT
  37 #endif
  38
  39 #endif
  40
  41 #define SHT_PROGBITS       1
  42 #define SHT_SYMTAB         2
  43 #define SHT_STRTAB         3
  44 #define SHT_RELA           4
  45 #define SHT_NOBITS         8
  46 #define SHT_REL            9
  47 #define SHT_SYMTAB_SHNDX   18
  48 #define SHT_ARM_ATTRIBUTES 0x70000003
  49
  50 #define ET_REL          1
  51 #define ET_EXEC         2
  52
  53 #define EM_386          3
  54 #define EM_68K          4
  55 #define EM_PPC          20
  56 #define EM_ARM          40
  57 #define EM_X86_64       62      /* AMD x86-64 */
  58
  59 #define R_386_NONE      0
  60 #define R_386_32        1
  61 #define R_386_PC32      2
  62
  63 /* AMD x86-64 relocations.  */
  64 #define R_X86_64_NONE   0       /* No reloc */
  65 #define R_X86_64_64     1       /* Direct 64 bit  */
  66 #define R_X86_64_PC32   2       /* PC relative 32 bit signed */
  67 #define R_X86_64_32     10
  68 #define R_X86_64_32S    11
  69
  70 #define R_68K_NONE      0
  71 #define R_68K_32        1
  72 #define R_68K_16        2
  73 #define R_68K_8         3
  74 #define R_68K_PC32      4
  75 #define R_68K_PC16      5
  76 #define R_68K_PC8       6
  77
  78 #define R_PPC_NONE      0
  79 #define R_PPC_ADDR32    1
  80 #define R_PPC_ADDR16_LO 4
  81 #define R_PPC_ADDR16_HA 6
  82 #define R_PPC_REL24     10
  83 #define R_PPC_REL32     26
  84 #define R_PPC_REL16_LO  250
  85 #define R_PPC_REL16_HA  252
  86
  87 #define R_ARM_NONE            0
  88 #define R_ARM_PC24            1
  89 #define R_ARM_ABS32           2
  90 #define R_ARM_CALL            28
  91 #define R_ARM_JUMP24          29
  92 #define R_ARM_V4BX            40
  93 #define R_ARM_PREL31          42
  94 #define R_ARM_MOVW_ABS_NC     43
  95 #define R_ARM_MOVT_ABS        44
  96 #define R_ARM_THM_CALL        10
  97 #define R_ARM_THM_JUMP24      30
  98 #define R_ARM_THM_MOVW_ABS_NC 47
  99 #define R_ARM_THM_MOVT_ABS    48
 100
 101 #define STT_NOTYPE      0
 102 #define STT_OBJECT      1
 103 #define STT_FUNC        2
 104 #define STT_SECTION     3
 105 #define STT_FILE        4
 106 #define STT_LOPROC      13
 107 #define STT_HIPROC      15
 108
 109 #define STB_LOCAL       0
 110 #define STB_GLOBAL      1
 111 #define STB_WEAK        2
 112 #define STB_LOOS        10
 113 #define STB_GNU_UNIQUE  10
 114 #define STB_HIOS        12
 115 #define STB_LOPROC      13
 116 #define STB_HIPROC      15
 117
 118 #define SHN_UNDEF       0
 119 #define SHN_LORESERVE   0xff00
 120 #define SHN_ABS         0xfff1
 121 #define SHN_COMMON      0xfff2
 122 #define SHN_XINDEX      0xffff
 123 #define SHN_HIRESERVE   0xffff
 124
 125 #define SHF_WRITE       (1 << 0)
 126 #define SHF_ALLOC       (1 << 1)
 127 #define SHF_EXECINSTR   (1 << 2)
 128
 129 #define ELF_ST_TYPE(i)    ((i) & 0x0F)
 130
 131 #define EI_VERSION      6
 132 #define EV_CURRENT      1
 133
 134 #define EI_DATA         5
 135 #define ELFDATA2LSB     1
 136 #define ELFDATA2MSB     2
 137
 138 #define EI_CLASS        4
 139 #define ELFCLASS32      1
 140 #define ELFCLASS64      2               /* 64-bit objects */
 141
 142 #define EI_OSABI        7
 143 #define EI_ABIVERSION   8
 144
 145 #define ELFOSABI_AROS   15
 146
 147 #define PF_X            (1 << 0)
 148
 149 struct elfheader
 150 {
 151     UBYTE         ident[16];
 152     UWORD         type;
 153     UWORD         machine;
 154     ULONG         version;
 155     elf_ptr_t     entry;
 156     elf_uintptr_t phoff;
 157     elf_uintptr_t shoff;
 158     ULONG         flags;
 159     UWORD         ehsize;
 160     UWORD         phentsize;
 161     UWORD         phnum;
 162     UWORD         shentsize;
 163     UWORD         shnum;
 164     UWORD         shstrndx;
 165 };
 166
 167 struct sheader
 168 {
 169     ULONG         name;
 170     ULONG         type;
 171     elf_uintptr_t flags;
 172     elf_ptr_t     addr;
 173     elf_uintptr_t offset;
 174     elf_uintptr_t size;
 175     ULONG         link;
 176     ULONG         info;
 177     elf_uintptr_t addralign;
 178     elf_uintptr_t entsize;
 179 };
 180
 181 #define PT_LOAD 1
 182
 183 #ifdef ELF_64BIT
 184
 185 struct pheader
 186 {
 187     ULONG         type;
 188     ULONG         flags;
 189     elf_uintptr_t offset;
 190     elf_ptr_t     vaddr;
 191     elf_ptr_t     paddr;
 192     elf_uintptr_t filesz;
 193     elf_uintptr_t memsz;
 194     elf_uintptr_t align;
 195 };
 196
 197 struct symbol
 198 {
 199     ULONG         name;     /* Offset of the name string in the string table            */
 200     UBYTE         info;     /* What kind of symbol is this ? (global, variable, etc)    */
 201     UBYTE         other;    /* undefined                                                */
 202     UWORD         shindex;  /* In which section is the symbol defined ?                 */
 203     elf_uintptr_t value;    /* Varies; eg. the offset of the symbol in its hunk         */
 204     elf_uintptr_t size;     /* How much memory does the symbol occupy                   */
 205 };
 206
 207 #define ELF_R_SYM(i)          (ULONG)((i) >> 32)
 208 #define ELF_R_TYPE(i)         (ULONG)((i) & 0xffffffffULL)
 209 #define ELF_R_INFO(sym, type) (((UQUAD)(sym) << 32) + (type))
 210
 211 #else
 212
 213 struct pheader
 214 {
 215     ULONG     type;
 216     ULONG     offset;
 217     elf_ptr_t vaddr;
 218     elf_ptr_t paddr;
 219     ULONG     filesz;
 220     ULONG     memsz;
 221     ULONG     flags;
 222     ULONG     align;
 223 };
 224
 225 struct symbol
 226 {
 227     ULONG         name;     /* Offset of the name string in the string table            */
 228     elf_uintptr_t value;    /* Varies; eg. the offset of the symbol in its hunk         */
 229     elf_uintptr_t size;     /* How much memory does the symbol occupy                   */
 230     UBYTE         info;     /* What kind of symbol is this ? (global, variable, etc)    */
 231     UBYTE         other;    /* undefined                                                */
 232     UWORD         shindex;  /* In which section is the symbol defined ?                 */
 233 };
 234
 235 #define ELF_R_SYM(val)        ((val) >> 8)
 236 #define ELF_R_TYPE(val)       ((val) & 0xff)
 237 #define ELF_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff))
 238
 239 #endif
 240
 241 #define ELF_S_BIND(val)         ((val) >> 4)
 242 #define ELF_S_TYPE(val)         ((val) & 0xF)
 243 #define ELF_S_INFO(bind, type)  (((bind) << 4) + ((type) & 0xF))
 244
 245 struct rel
 246 {
 247     elf_uintptr_t offset;   /* Address of the relocation relative to the section it refers to */
 248     elf_uintptr_t info;     /* Type of the relocation */
 249 };
 250
 251 struct rela
 252 {
 253     elf_uintptr_t offset;   /* Address of the relocation relative to the section it refers to */
 254     elf_uintptr_t info;     /* Type of the relocation */
 255     elf_intptr_t  addend;   /* Constant addend used to compute value */
 256 };
 257
 258 /* convert section header number to array index */
 259 #define SHINDEX(n) \
 260     ((n) < SHN_LORESERVE ? (n) : ((n) <= SHN_HIRESERVE ? 0 : (n) - (SHN_HIRESERVE + 1 - SHN_LORESERVE)))
 261
 262 /* convert section header array index to section number */
 263 #define SHNUM(i) \
 264     ((i) < SHN_LORESERVE ? (i) : (i) + (SHN_HIRESERVE + 1 - SHN_LORESERVE))
 265
 266 /* ARM-specific attributes section definitions follow */
 267
 268 #define ATTR_VERSION_CURRENT 0x41
 269
 270 struct attrs_section
 271 {
 272     ULONG size;
 273     char  vendor[1];        /* NULL-terminated name */
 274                             /* Vendor-specific subsections follow */
 275 };
 276
 277 struct attrs_subsection
 278 {
 279     UBYTE tag;
 280     ULONG size;
 281 } __attribute__((packed));
 282
 283 #define Tag_File                 1
 284 #define Tag_Section              2
 285 #define Tag_Symbol               3
 286 #define Tag_CPU_raw_name         4
 287 #define Tag_CPU_name             5
 288 #define Tag_CPU_arch             6
 289 #define Tag_FP_arch              10
 290 #define Tag_compatibility        32
 291 #define Tag_also_compatible_with 65
 292 #define Tag_conformance          67
 293
 294 /* Tag_CPU_arch values */
 295 #define ELF_CPU_PREv4    0
 296 #define ELF_CPU_ARMv4    1
 297 #define ELF_CPU_ARMv4T   2
 298 #define ELF_CPU_ARMv5T   3
 299 #define ELF_CPU_ARMv5TE  4
 300 #define ELF_CPU_ARMv5TEJ 5
 301 #define ELF_CPU_ARMv6    6
 302 #define ELF_CPU_ARMv6KZ  7
 303 #define ELF_CPU_ARMv6T2  8
 304 #define ELF_CPU_ARMv6K   9
 305 #define ELF_CPU_ARMv7    10
 306 #define ELF_CPU_ARM_v6M  11
 307 #define ELF_CPU_ARMv6SM  12
 308 #define ELF_CPU_ARMv7EM  13
 309
 310 /* Tag_FP_arch values */
 311 #define ELF_FP_None     0
 312 #define ELF_FP_v1       1
 313 #define ELF_FP_v2       2
 314 #define ELF_FP_v3       3
 315 #define ELF_FP_v3_Short 4
 316 #define ELF_FP_v4       5
 317 #define ELF_FP_v4_Short 6
 318
 319 /* Machine's native values */
 320 #ifdef ELF_64BIT
 321 #define AROS_ELF_CLASS ELFCLASS64
 322 #else
 323 #define AROS_ELF_CLASS ELFCLASS32
 324 #endif
 325
 326 #if AROS_BIG_ENDIAN
 327 #define AROS_ELF_DATA ELFDATA2MSB
 328 #else
 329 #define AROS_ELF_DATA ELFDATA2LSB
 330 #endif
 331
 332 #if defined(__i386__) || defined(__x86_64__)
 333 #ifdef ELF_64BIT
 334 #define AROS_ELF_MACHINE EM_X86_64
 335 #define AROS_ELF_REL     SHT_RELA
 336 #define relo             rela
 337 #else
 338 #define AROS_ELF_MACHINE EM_386
 339 #define AROS_ELF_REL     SHT_REL
 340 #define relo             rel
 341 #endif
 342 #endif
 343 #ifdef __mc68000__
 344 #define AROS_ELF_MACHINE EM_68K
 345 #define AROS_ELF_REL     SHT_RELA
 346 #define relo             rela
 347 #endif
 348 #ifdef __powerpc__
 349 #define AROS_ELF_MACHINE EM_PPC
 350 #define AROS_ELF_REL     SHT_RELA
 351 #define relo             rela
 352 #endif
 353 #ifdef __arm__
 354 #define AROS_ELF_MACHINE EM_ARM
 355 #define AROS_ELF_REL     SHT_REL
 356 #define relo             rel
 357 #endif
 358
 359 #endif