Annotation of sys/sys/exec_elf.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: exec_elf.h,v 1.43 2007/05/14 05:04:58 tedu Exp $ */
! 2: /*
! 3: * Copyright (c) 1995, 1996 Erik Theisen. 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, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: * 3. The name of the author may not be used to endorse or promote products
! 14: * derived from this software without specific prior written permission
! 15: *
! 16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 19: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 20: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 21: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 22: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 23: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 24: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 25: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 26: */
! 27:
! 28: /*
! 29: * This is the ELF ABI header file
! 30: * formerly known as "elf_abi.h".
! 31: */
! 32:
! 33: #ifndef _SYS_EXEC_ELF_H_
! 34: #define _SYS_EXEC_ELF_H_
! 35:
! 36: #include <machine/_types.h>
! 37: #include <machine/exec.h>
! 38:
! 39: typedef __uint8_t Elf_Byte;
! 40:
! 41: typedef __uint32_t Elf32_Addr; /* Unsigned program address */
! 42: typedef __uint32_t Elf32_Off; /* Unsigned file offset */
! 43: typedef __int32_t Elf32_Sword; /* Signed large integer */
! 44: typedef __uint32_t Elf32_Word; /* Unsigned large integer */
! 45: typedef __uint16_t Elf32_Half; /* Unsigned medium integer */
! 46:
! 47: typedef __uint64_t Elf64_Addr;
! 48: typedef __uint64_t Elf64_Off;
! 49: typedef __int32_t Elf64_Shalf;
! 50:
! 51: #ifdef __alpha__
! 52: typedef __int64_t Elf64_Sword;
! 53: typedef __uint64_t Elf64_Word;
! 54: #else
! 55: typedef __int32_t Elf64_Sword;
! 56: typedef __uint32_t Elf64_Word;
! 57: #endif
! 58:
! 59: typedef __int64_t Elf64_Sxword;
! 60: typedef __uint64_t Elf64_Xword;
! 61:
! 62: typedef __uint32_t Elf64_Half;
! 63: typedef __uint16_t Elf64_Quarter;
! 64:
! 65: /*
! 66: * e_ident[] identification indexes
! 67: * See http://www.caldera.com/developers/gabi/2000-07-17/ch4.eheader.html
! 68: */
! 69: #define EI_MAG0 0 /* file ID */
! 70: #define EI_MAG1 1 /* file ID */
! 71: #define EI_MAG2 2 /* file ID */
! 72: #define EI_MAG3 3 /* file ID */
! 73: #define EI_CLASS 4 /* file class */
! 74: #define EI_DATA 5 /* data encoding */
! 75: #define EI_VERSION 6 /* ELF header version */
! 76: #define EI_OSABI 7 /* OS/ABI ID */
! 77: #define EI_ABIVERSION 8 /* ABI version */
! 78: #define EI_PAD 9 /* start of pad bytes */
! 79: #define EI_NIDENT 16 /* Size of e_ident[] */
! 80:
! 81: /* e_ident[] magic number */
! 82: #define ELFMAG0 0x7f /* e_ident[EI_MAG0] */
! 83: #define ELFMAG1 'E' /* e_ident[EI_MAG1] */
! 84: #define ELFMAG2 'L' /* e_ident[EI_MAG2] */
! 85: #define ELFMAG3 'F' /* e_ident[EI_MAG3] */
! 86: #define ELFMAG "\177ELF" /* magic */
! 87: #define SELFMAG 4 /* size of magic */
! 88:
! 89: /* e_ident[] file class */
! 90: #define ELFCLASSNONE 0 /* invalid */
! 91: #define ELFCLASS32 1 /* 32-bit objs */
! 92: #define ELFCLASS64 2 /* 64-bit objs */
! 93: #define ELFCLASSNUM 3 /* number of classes */
! 94:
! 95: /* e_ident[] data encoding */
! 96: #define ELFDATANONE 0 /* invalid */
! 97: #define ELFDATA2LSB 1 /* Little-Endian */
! 98: #define ELFDATA2MSB 2 /* Big-Endian */
! 99: #define ELFDATANUM 3 /* number of data encode defines */
! 100:
! 101: /* e_ident[] Operating System/ABI */
! 102: #define ELFOSABI_SYSV 0 /* UNIX System V ABI */
! 103: #define ELFOSABI_HPUX 1 /* HP-UX operating system */
! 104: #define ELFOSABI_NETBSD 2 /* NetBSD */
! 105: #define ELFOSABI_LINUX 3 /* GNU/Linux */
! 106: #define ELFOSABI_HURD 4 /* GNU/Hurd */
! 107: #define ELFOSABI_86OPEN 5 /* 86Open common IA32 ABI */
! 108: #define ELFOSABI_SOLARIS 6 /* Solaris */
! 109: #define ELFOSABI_MONTEREY 7 /* Monterey */
! 110: #define ELFOSABI_IRIX 8 /* IRIX */
! 111: #define ELFOSABI_FREEBSD 9 /* FreeBSD */
! 112: #define ELFOSABI_TRU64 10 /* TRU64 UNIX */
! 113: #define ELFOSABI_MODESTO 11 /* Novell Modesto */
! 114: #define ELFOSABI_OPENBSD 12 /* OpenBSD */
! 115: #define ELFOSABI_ARM 97 /* ARM */
! 116: #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
! 117:
! 118: /* e_ident */
! 119: #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
! 120: (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
! 121: (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
! 122: (ehdr).e_ident[EI_MAG3] == ELFMAG3)
! 123:
! 124: /* ELF Header */
! 125: typedef struct elfhdr {
! 126: unsigned char e_ident[EI_NIDENT]; /* ELF Identification */
! 127: Elf32_Half e_type; /* object file type */
! 128: Elf32_Half e_machine; /* machine */
! 129: Elf32_Word e_version; /* object file version */
! 130: Elf32_Addr e_entry; /* virtual entry point */
! 131: Elf32_Off e_phoff; /* program header table offset */
! 132: Elf32_Off e_shoff; /* section header table offset */
! 133: Elf32_Word e_flags; /* processor-specific flags */
! 134: Elf32_Half e_ehsize; /* ELF header size */
! 135: Elf32_Half e_phentsize; /* program header entry size */
! 136: Elf32_Half e_phnum; /* number of program header entries */
! 137: Elf32_Half e_shentsize; /* section header entry size */
! 138: Elf32_Half e_shnum; /* number of section header entries */
! 139: Elf32_Half e_shstrndx; /* section header table's "section
! 140: header string table" entry offset */
! 141: } Elf32_Ehdr;
! 142:
! 143: typedef struct {
! 144: unsigned char e_ident[EI_NIDENT]; /* Id bytes */
! 145: Elf64_Quarter e_type; /* file type */
! 146: Elf64_Quarter e_machine; /* machine type */
! 147: Elf64_Half e_version; /* version number */
! 148: Elf64_Addr e_entry; /* entry point */
! 149: Elf64_Off e_phoff; /* Program hdr offset */
! 150: Elf64_Off e_shoff; /* Section hdr offset */
! 151: Elf64_Half e_flags; /* Processor flags */
! 152: Elf64_Quarter e_ehsize; /* sizeof ehdr */
! 153: Elf64_Quarter e_phentsize; /* Program header entry size */
! 154: Elf64_Quarter e_phnum; /* Number of program headers */
! 155: Elf64_Quarter e_shentsize; /* Section header entry size */
! 156: Elf64_Quarter e_shnum; /* Number of section headers */
! 157: Elf64_Quarter e_shstrndx; /* String table index */
! 158: } Elf64_Ehdr;
! 159:
! 160: /* e_type */
! 161: #define ET_NONE 0 /* No file type */
! 162: #define ET_REL 1 /* relocatable file */
! 163: #define ET_EXEC 2 /* executable file */
! 164: #define ET_DYN 3 /* shared object file */
! 165: #define ET_CORE 4 /* core file */
! 166: #define ET_NUM 5 /* number of types */
! 167: #define ET_LOPROC 0xff00 /* reserved range for processor */
! 168: #define ET_HIPROC 0xffff /* specific e_type */
! 169:
! 170: /* e_machine */
! 171: #define EM_NONE 0 /* No Machine */
! 172: #define EM_M32 1 /* AT&T WE 32100 */
! 173: #define EM_SPARC 2 /* SPARC */
! 174: #define EM_386 3 /* Intel 80386 */
! 175: #define EM_68K 4 /* Motorola 68000 */
! 176: #define EM_88K 5 /* Motorola 88000 */
! 177: #define EM_486 6 /* Intel 80486 - unused? */
! 178: #define EM_860 7 /* Intel 80860 */
! 179: #define EM_MIPS 8 /* MIPS R3000 Big-Endian only */
! 180: /*
! 181: * Don't know if EM_MIPS_RS4_BE,
! 182: * EM_SPARC64, EM_PARISC,
! 183: * or EM_PPC are ABI compliant
! 184: */
! 185: #define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */
! 186: #define EM_SPARC64 11 /* SPARC v9 64-bit unoffical */
! 187: #define EM_PARISC 15 /* HPPA */
! 188: #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
! 189: #define EM_PPC 20 /* PowerPC */
! 190: #define EM_ARM 40 /* Advanced RISC Machines ARM */
! 191: #define EM_ALPHA 41 /* DEC ALPHA */
! 192: #define EM_SH 42 /* Hitachi/Renesas Super-H */
! 193: #define EM_SPARCV9 43 /* SPARC version 9 */
! 194: #define EM_ALPHA_EXP 0x9026 /* DEC ALPHA */
! 195: #define EM_AMD64 62 /* AMD64 architecture */
! 196: #define EM_VAX 75 /* DEC VAX */
! 197: #define EM_NUM 15 /* number of machine types */
! 198:
! 199: /* Version */
! 200: #define EV_NONE 0 /* Invalid */
! 201: #define EV_CURRENT 1 /* Current */
! 202: #define EV_NUM 2 /* number of versions */
! 203:
! 204: /* Section Header */
! 205: typedef struct {
! 206: Elf32_Word sh_name; /* name - index into section header
! 207: string table section */
! 208: Elf32_Word sh_type; /* type */
! 209: Elf32_Word sh_flags; /* flags */
! 210: Elf32_Addr sh_addr; /* address */
! 211: Elf32_Off sh_offset; /* file offset */
! 212: Elf32_Word sh_size; /* section size */
! 213: Elf32_Word sh_link; /* section header table index link */
! 214: Elf32_Word sh_info; /* extra information */
! 215: Elf32_Word sh_addralign; /* address alignment */
! 216: Elf32_Word sh_entsize; /* section entry size */
! 217: } Elf32_Shdr;
! 218:
! 219: typedef struct {
! 220: Elf64_Half sh_name; /* section name */
! 221: Elf64_Half sh_type; /* section type */
! 222: Elf64_Xword sh_flags; /* section flags */
! 223: Elf64_Addr sh_addr; /* virtual address */
! 224: Elf64_Off sh_offset; /* file offset */
! 225: Elf64_Xword sh_size; /* section size */
! 226: Elf64_Half sh_link; /* link to another */
! 227: Elf64_Half sh_info; /* misc info */
! 228: Elf64_Xword sh_addralign; /* memory alignment */
! 229: Elf64_Xword sh_entsize; /* table entry size */
! 230: } Elf64_Shdr;
! 231:
! 232: /* Special Section Indexes */
! 233: #define SHN_UNDEF 0 /* undefined */
! 234: #define SHN_LORESERVE 0xff00 /* lower bounds of reserved indexes */
! 235: #define SHN_LOPROC 0xff00 /* reserved range for processor */
! 236: #define SHN_HIPROC 0xff1f /* specific section indexes */
! 237: #define SHN_ABS 0xfff1 /* absolute value */
! 238: #define SHN_COMMON 0xfff2 /* common symbol */
! 239: #define SHN_HIRESERVE 0xffff /* upper bounds of reserved indexes */
! 240:
! 241: /* sh_type */
! 242: #define SHT_NULL 0 /* inactive */
! 243: #define SHT_PROGBITS 1 /* program defined information */
! 244: #define SHT_SYMTAB 2 /* symbol table section */
! 245: #define SHT_STRTAB 3 /* string table section */
! 246: #define SHT_RELA 4 /* relocation section with addends*/
! 247: #define SHT_HASH 5 /* symbol hash table section */
! 248: #define SHT_DYNAMIC 6 /* dynamic section */
! 249: #define SHT_NOTE 7 /* note section */
! 250: #define SHT_NOBITS 8 /* no space section */
! 251: #define SHT_REL 9 /* relation section without addends */
! 252: #define SHT_SHLIB 10 /* reserved - purpose unknown */
! 253: #define SHT_DYNSYM 11 /* dynamic symbol table section */
! 254: #define SHT_NUM 12 /* number of section types */
! 255: #define SHT_LOPROC 0x70000000 /* reserved range for processor */
! 256: #define SHT_HIPROC 0x7fffffff /* specific section header types */
! 257: #define SHT_LOUSER 0x80000000 /* reserved range for application */
! 258: #define SHT_HIUSER 0xffffffff /* specific indexes */
! 259:
! 260: /* Section names */
! 261: #define ELF_BSS ".bss" /* uninitialized data */
! 262: #define ELF_DATA ".data" /* initialized data */
! 263: #define ELF_DEBUG ".debug" /* debug */
! 264: #define ELF_DYNAMIC ".dynamic" /* dynamic linking information */
! 265: #define ELF_DYNSTR ".dynstr" /* dynamic string table */
! 266: #define ELF_DYNSYM ".dynsym" /* dynamic symbol table */
! 267: #define ELF_FINI ".fini" /* termination code */
! 268: #define ELF_GOT ".got" /* global offset table */
! 269: #define ELF_HASH ".hash" /* symbol hash table */
! 270: #define ELF_INIT ".init" /* initialization code */
! 271: #define ELF_REL_DATA ".rel.data" /* relocation data */
! 272: #define ELF_REL_FINI ".rel.fini" /* relocation termination code */
! 273: #define ELF_REL_INIT ".rel.init" /* relocation initialization code */
! 274: #define ELF_REL_DYN ".rel.dyn" /* relocaltion dynamic link info */
! 275: #define ELF_REL_RODATA ".rel.rodata" /* relocation read-only data */
! 276: #define ELF_REL_TEXT ".rel.text" /* relocation code */
! 277: #define ELF_RODATA ".rodata" /* read-only data */
! 278: #define ELF_SHSTRTAB ".shstrtab" /* section header string table */
! 279: #define ELF_STRTAB ".strtab" /* string table */
! 280: #define ELF_SYMTAB ".symtab" /* symbol table */
! 281: #define ELF_TEXT ".text" /* code */
! 282:
! 283:
! 284: /* Section Attribute Flags - sh_flags */
! 285: #define SHF_WRITE 0x1 /* Writable */
! 286: #define SHF_ALLOC 0x2 /* occupies memory */
! 287: #define SHF_EXECINSTR 0x4 /* executable */
! 288: #define SHF_MASKPROC 0xf0000000 /* reserved bits for processor */
! 289: /* specific section attributes */
! 290:
! 291: /* Symbol Table Entry */
! 292: typedef struct elf32_sym {
! 293: Elf32_Word st_name; /* name - index into string table */
! 294: Elf32_Addr st_value; /* symbol value */
! 295: Elf32_Word st_size; /* symbol size */
! 296: unsigned char st_info; /* type and binding */
! 297: unsigned char st_other; /* 0 - no defined meaning */
! 298: Elf32_Half st_shndx; /* section header index */
! 299: } Elf32_Sym;
! 300:
! 301: typedef struct {
! 302: Elf64_Half st_name; /* Symbol name index in str table */
! 303: Elf_Byte st_info; /* type / binding attrs */
! 304: Elf_Byte st_other; /* unused */
! 305: Elf64_Quarter st_shndx; /* section index of symbol */
! 306: Elf64_Xword st_value; /* value of symbol */
! 307: Elf64_Xword st_size; /* size of symbol */
! 308: } Elf64_Sym;
! 309:
! 310: /* Symbol table index */
! 311: #define STN_UNDEF 0 /* undefined */
! 312:
! 313: /* Extract symbol info - st_info */
! 314: #define ELF32_ST_BIND(x) ((x) >> 4)
! 315: #define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf)
! 316: #define ELF32_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
! 317:
! 318: #define ELF64_ST_BIND(x) ((x) >> 4)
! 319: #define ELF64_ST_TYPE(x) (((unsigned int) x) & 0xf)
! 320: #define ELF64_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
! 321:
! 322: /* Symbol Binding - ELF32_ST_BIND - st_info */
! 323: #define STB_LOCAL 0 /* Local symbol */
! 324: #define STB_GLOBAL 1 /* Global symbol */
! 325: #define STB_WEAK 2 /* like global - lower precedence */
! 326: #define STB_NUM 3 /* number of symbol bindings */
! 327: #define STB_LOPROC 13 /* reserved range for processor */
! 328: #define STB_HIPROC 15 /* specific symbol bindings */
! 329:
! 330: /* Symbol type - ELF32_ST_TYPE - st_info */
! 331: #define STT_NOTYPE 0 /* not specified */
! 332: #define STT_OBJECT 1 /* data object */
! 333: #define STT_FUNC 2 /* function */
! 334: #define STT_SECTION 3 /* section */
! 335: #define STT_FILE 4 /* file */
! 336: #define STT_NUM 5 /* number of symbol types */
! 337: #define STT_LOPROC 13 /* reserved range for processor */
! 338: #define STT_HIPROC 15 /* specific symbol types */
! 339:
! 340: /* Relocation entry with implicit addend */
! 341: typedef struct {
! 342: Elf32_Addr r_offset; /* offset of relocation */
! 343: Elf32_Word r_info; /* symbol table index and type */
! 344: } Elf32_Rel;
! 345:
! 346: /* Relocation entry with explicit addend */
! 347: typedef struct {
! 348: Elf32_Addr r_offset; /* offset of relocation */
! 349: Elf32_Word r_info; /* symbol table index and type */
! 350: Elf32_Sword r_addend;
! 351: } Elf32_Rela;
! 352:
! 353: /* Extract relocation info - r_info */
! 354: #define ELF32_R_SYM(i) ((i) >> 8)
! 355: #define ELF32_R_TYPE(i) ((unsigned char) (i))
! 356: #define ELF32_R_INFO(s,t) (((s) << 8) + (unsigned char)(t))
! 357:
! 358: typedef struct {
! 359: Elf64_Xword r_offset; /* where to do it */
! 360: Elf64_Xword r_info; /* index & type of relocation */
! 361: } Elf64_Rel;
! 362:
! 363: typedef struct {
! 364: Elf64_Xword r_offset; /* where to do it */
! 365: Elf64_Xword r_info; /* index & type of relocation */
! 366: Elf64_Sxword r_addend; /* adjustment value */
! 367: } Elf64_Rela;
! 368:
! 369: #define ELF64_R_SYM(info) ((info) >> 32)
! 370: #define ELF64_R_TYPE(info) ((info) & 0xFFFFFFFF)
! 371: #define ELF64_R_INFO(s,t) (((s) << 32) + (__uint32_t)(t))
! 372:
! 373: /* Program Header */
! 374: typedef struct {
! 375: Elf32_Word p_type; /* segment type */
! 376: Elf32_Off p_offset; /* segment offset */
! 377: Elf32_Addr p_vaddr; /* virtual address of segment */
! 378: Elf32_Addr p_paddr; /* physical address - ignored? */
! 379: Elf32_Word p_filesz; /* number of bytes in file for seg. */
! 380: Elf32_Word p_memsz; /* number of bytes in mem. for seg. */
! 381: Elf32_Word p_flags; /* flags */
! 382: Elf32_Word p_align; /* memory alignment */
! 383: } Elf32_Phdr;
! 384:
! 385: typedef struct {
! 386: Elf64_Half p_type; /* entry type */
! 387: Elf64_Half p_flags; /* flags */
! 388: Elf64_Off p_offset; /* offset */
! 389: Elf64_Addr p_vaddr; /* virtual address */
! 390: Elf64_Addr p_paddr; /* physical address */
! 391: Elf64_Xword p_filesz; /* file size */
! 392: Elf64_Xword p_memsz; /* memory size */
! 393: Elf64_Xword p_align; /* memory & file alignment */
! 394: } Elf64_Phdr;
! 395:
! 396: /* Segment types - p_type */
! 397: #define PT_NULL 0 /* unused */
! 398: #define PT_LOAD 1 /* loadable segment */
! 399: #define PT_DYNAMIC 2 /* dynamic linking section */
! 400: #define PT_INTERP 3 /* the RTLD */
! 401: #define PT_NOTE 4 /* auxiliary information */
! 402: #define PT_SHLIB 5 /* reserved - purpose undefined */
! 403: #define PT_PHDR 6 /* program header */
! 404: #define PT_NUM 7 /* Number of segment types */
! 405: #define PT_LOOS 0x60000000 /* reserved range for OS */
! 406: #define PT_HIOS 0x6fffffff /* specific segment types */
! 407: #define PT_LOPROC 0x70000000 /* reserved range for processor */
! 408: #define PT_HIPROC 0x7fffffff /* specific segment types */
! 409:
! 410: /* Segment flags - p_flags */
! 411: #define PF_X 0x1 /* Executable */
! 412: #define PF_W 0x2 /* Writable */
! 413: #define PF_R 0x4 /* Readable */
! 414: #define PF_MASKPROC 0xf0000000 /* reserved bits for processor */
! 415: /* specific segment flags */
! 416:
! 417: /* Dynamic structure */
! 418: typedef struct {
! 419: Elf32_Sword d_tag; /* controls meaning of d_val */
! 420: union {
! 421: Elf32_Word d_val; /* Multiple meanings - see d_tag */
! 422: Elf32_Addr d_ptr; /* program virtual address */
! 423: } d_un;
! 424: } Elf32_Dyn;
! 425:
! 426: typedef struct {
! 427: Elf64_Xword d_tag; /* controls meaning of d_val */
! 428: union {
! 429: Elf64_Addr d_ptr;
! 430: Elf64_Xword d_val;
! 431: } d_un;
! 432: } Elf64_Dyn;
! 433:
! 434: /* Dynamic Array Tags - d_tag */
! 435: #define DT_NULL 0 /* marks end of _DYNAMIC array */
! 436: #define DT_NEEDED 1 /* string table offset of needed lib */
! 437: #define DT_PLTRELSZ 2 /* size of relocation entries in PLT */
! 438: #define DT_PLTGOT 3 /* address PLT/GOT */
! 439: #define DT_HASH 4 /* address of symbol hash table */
! 440: #define DT_STRTAB 5 /* address of string table */
! 441: #define DT_SYMTAB 6 /* address of symbol table */
! 442: #define DT_RELA 7 /* address of relocation table */
! 443: #define DT_RELASZ 8 /* size of relocation table */
! 444: #define DT_RELAENT 9 /* size of relocation entry */
! 445: #define DT_STRSZ 10 /* size of string table */
! 446: #define DT_SYMENT 11 /* size of symbol table entry */
! 447: #define DT_INIT 12 /* address of initialization func. */
! 448: #define DT_FINI 13 /* address of termination function */
! 449: #define DT_SONAME 14 /* string table offset of shared obj */
! 450: #define DT_RPATH 15 /* string table offset of library
! 451: search path */
! 452: #define DT_SYMBOLIC 16 /* start sym search in shared obj. */
! 453: #define DT_REL 17 /* address of rel. tbl. w addends */
! 454: #define DT_RELSZ 18 /* size of DT_REL relocation table */
! 455: #define DT_RELENT 19 /* size of DT_REL relocation entry */
! 456: #define DT_PLTREL 20 /* PLT referenced relocation entry */
! 457: #define DT_DEBUG 21 /* bugger */
! 458: #define DT_TEXTREL 22 /* Allow rel. mod. to unwritable seg */
! 459: #define DT_JMPREL 23 /* add. of PLT's relocation entries */
! 460: #define DT_BIND_NOW 24 /* Bind now regardless of env setting */
! 461: #define DT_NUM 25 /* Number used. */
! 462: #define DT_LOPROC 0x70000000 /* reserved range for processor */
! 463: #define DT_HIPROC 0x7fffffff /* specific dynamic array tags */
! 464:
! 465: /* Standard ELF hashing function */
! 466: unsigned int elf_hash(const unsigned char *name);
! 467:
! 468: /*
! 469: * Note Definitions
! 470: */
! 471: typedef struct {
! 472: Elf32_Word namesz;
! 473: Elf32_Word descsz;
! 474: Elf32_Word type;
! 475: } Elf32_Note;
! 476:
! 477: typedef struct {
! 478: Elf64_Half namesz;
! 479: Elf64_Half descsz;
! 480: Elf64_Half type;
! 481: } Elf64_Note;
! 482:
! 483: /*
! 484: * XXX - these _KERNEL items aren't part of the ABI!
! 485: */
! 486: #if defined(_KERNEL) || defined(_DYN_LOADER)
! 487:
! 488: #define ELF32_NO_ADDR ((uint32_t) ~0) /* Indicates addr. not yet filled in */
! 489: #define ELF_AUX_ENTRIES 8 /* Size of aux array passed to loader */
! 490:
! 491: typedef struct {
! 492: Elf32_Sword au_id; /* 32-bit id */
! 493: Elf32_Word au_v; /* 32-bit value */
! 494: } Aux32Info;
! 495:
! 496: #define ELF64_NO_ADDR ((__uint64_t) ~0)/* Indicates addr. not yet filled in */
! 497: #define ELF64_AUX_ENTRIES 8 /* Size of aux array passed to loader */
! 498:
! 499: typedef struct {
! 500: Elf64_Shalf au_id; /* 32-bit id */
! 501: Elf64_Xword au_v; /* 64-bit id */
! 502: } Aux64Info;
! 503:
! 504: enum AuxID {
! 505: AUX_null = 0,
! 506: AUX_ignore = 1,
! 507: AUX_execfd = 2,
! 508: AUX_phdr = 3, /* &phdr[0] */
! 509: AUX_phent = 4, /* sizeof(phdr[0]) */
! 510: AUX_phnum = 5, /* # phdr entries */
! 511: AUX_pagesz = 6, /* PAGESIZE */
! 512: AUX_base = 7, /* ld.so base addr */
! 513: AUX_flags = 8, /* processor flags */
! 514: AUX_entry = 9, /* a.out entry */
! 515: AUX_sun_uid = 2000, /* euid */
! 516: AUX_sun_ruid = 2001, /* ruid */
! 517: AUX_sun_gid = 2002, /* egid */
! 518: AUX_sun_rgid = 2003 /* rgid */
! 519: };
! 520:
! 521: struct elf_args {
! 522: u_long arg_entry; /* program entry point */
! 523: u_long arg_interp; /* Interpreter load address */
! 524: u_long arg_phaddr; /* program header address */
! 525: u_long arg_phentsize; /* Size of program header */
! 526: u_long arg_phnum; /* Number of program headers */
! 527: u_long arg_os; /* OS tag */
! 528: };
! 529:
! 530: #endif
! 531:
! 532: #if !defined(ELFSIZE) && defined(ARCH_ELFSIZE)
! 533: #define ELFSIZE ARCH_ELFSIZE
! 534: #endif
! 535:
! 536: #if defined(ELFSIZE)
! 537: #define CONCAT(x,y) __CONCAT(x,y)
! 538: #define ELFNAME(x) CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x)))
! 539: #define ELFNAME2(x,y) CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y))))
! 540: #define ELFNAMEEND(x) CONCAT(x,CONCAT(_elf,ELFSIZE))
! 541: #define ELFDEFNNAME(x) CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x)))
! 542: #endif
! 543:
! 544: #if defined(ELFSIZE) && (ELFSIZE == 32)
! 545: #define Elf_Ehdr Elf32_Ehdr
! 546: #define Elf_Phdr Elf32_Phdr
! 547: #define Elf_Shdr Elf32_Shdr
! 548: #define Elf_Sym Elf32_Sym
! 549: #define Elf_Rel Elf32_Rel
! 550: #define Elf_RelA Elf32_Rela
! 551: #define Elf_Dyn Elf32_Dyn
! 552: #define Elf_Half Elf32_Half
! 553: #define Elf_Word Elf32_Word
! 554: #define Elf_Sword Elf32_Sword
! 555: #define Elf_Addr Elf32_Addr
! 556: #define Elf_Off Elf32_Off
! 557: #define Elf_Nhdr Elf32_Nhdr
! 558: #define Elf_Note Elf32_Note
! 559:
! 560: #define ELF_R_SYM ELF32_R_SYM
! 561: #define ELF_R_TYPE ELF32_R_TYPE
! 562: #define ELF_R_INFO ELF32_R_INFO
! 563: #define ELFCLASS ELFCLASS32
! 564:
! 565: #define ELF_ST_BIND ELF32_ST_BIND
! 566: #define ELF_ST_TYPE ELF32_ST_TYPE
! 567: #define ELF_ST_INFO ELF32_ST_INFO
! 568:
! 569: #define AuxInfo Aux32Info
! 570: #elif defined(ELFSIZE) && (ELFSIZE == 64)
! 571: #define Elf_Ehdr Elf64_Ehdr
! 572: #define Elf_Phdr Elf64_Phdr
! 573: #define Elf_Shdr Elf64_Shdr
! 574: #define Elf_Sym Elf64_Sym
! 575: #define Elf_Rel Elf64_Rel
! 576: #define Elf_RelA Elf64_Rela
! 577: #define Elf_Dyn Elf64_Dyn
! 578: #define Elf_Half Elf64_Half
! 579: #define Elf_Word Elf64_Word
! 580: #define Elf_Sword Elf64_Sword
! 581: #define Elf_Addr Elf64_Addr
! 582: #define Elf_Off Elf64_Off
! 583: #define Elf_Nhdr Elf64_Nhdr
! 584: #define Elf_Note Elf64_Note
! 585:
! 586: #define ELF_R_SYM ELF64_R_SYM
! 587: #define ELF_R_TYPE ELF64_R_TYPE
! 588: #define ELF_R_INFO ELF64_R_INFO
! 589: #define ELFCLASS ELFCLASS64
! 590:
! 591: #define ELF_ST_BIND ELF64_ST_BIND
! 592: #define ELF_ST_TYPE ELF64_ST_TYPE
! 593: #define ELF_ST_INFO ELF64_ST_INFO
! 594:
! 595: #define AuxInfo Aux64Info
! 596: #endif
! 597:
! 598: #ifndef _KERNEL
! 599: extern Elf_Dyn _DYNAMIC[];
! 600: #endif
! 601:
! 602: #ifdef _KERNEL
! 603: #ifdef _KERN_DO_ELF64
! 604: int exec_elf64_makecmds(struct proc *, struct exec_package *);
! 605: void *elf64_copyargs(struct exec_package *, struct ps_strings *,
! 606: void *, void *);
! 607: int exec_elf64_fixup(struct proc *, struct exec_package *);
! 608: char *elf64_check_brand(Elf64_Ehdr *);
! 609: int elf64_os_pt_note(struct proc *, struct exec_package *, Elf64_Ehdr *,
! 610: char *, size_t, size_t);
! 611: #endif
! 612: #ifdef _KERN_DO_ELF
! 613: int exec_elf32_makecmds(struct proc *, struct exec_package *);
! 614: void *elf32_copyargs(struct exec_package *, struct ps_strings *,
! 615: void *, void *);
! 616: int exec_elf32_fixup(struct proc *, struct exec_package *);
! 617: char *elf32_check_brand(Elf32_Ehdr *);
! 618: int elf32_os_pt_note(struct proc *, struct exec_package *, Elf32_Ehdr *,
! 619: char *, size_t, size_t);
! 620: #endif
! 621:
! 622: #endif /* _KERNEL */
! 623:
! 624: #define ELF_TARG_VER 1 /* The ver for which this code is intended */
! 625:
! 626: #endif /* _SYS_EXEC_ELF_H_ */
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