1181624Skmacy#ifndef __XEN_PUBLIC_ELFSTRUCTS_H__ 2181624Skmacy#define __XEN_PUBLIC_ELFSTRUCTS_H__ 1 3181624Skmacy/* 4181624Skmacy * Copyright (c) 1995, 1996 Erik Theisen. All rights reserved. 5181624Skmacy * 6181624Skmacy * Redistribution and use in source and binary forms, with or without 7181624Skmacy * modification, are permitted provided that the following conditions 8181624Skmacy * are met: 9181624Skmacy * 1. Redistributions of source code must retain the above copyright 10181624Skmacy * notice, this list of conditions and the following disclaimer. 11181624Skmacy * 2. Redistributions in binary form must reproduce the above copyright 12181624Skmacy * notice, this list of conditions and the following disclaimer in the 13181624Skmacy * documentation and/or other materials provided with the distribution. 14181624Skmacy * 3. The name of the author may not be used to endorse or promote products 15181624Skmacy * derived from this software without specific prior written permission 16181624Skmacy * 17181624Skmacy * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18181624Skmacy * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19181624Skmacy * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20181624Skmacy * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21181624Skmacy * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22181624Skmacy * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23181624Skmacy * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24181624Skmacy * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25181624Skmacy * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26181624Skmacy * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27181624Skmacy */ 28181624Skmacy 29181624Skmacytypedef uint8_t Elf_Byte; 30181624Skmacy 31181624Skmacytypedef uint32_t Elf32_Addr; /* Unsigned program address */ 32181624Skmacytypedef uint32_t Elf32_Off; /* Unsigned file offset */ 33181624Skmacytypedef int32_t Elf32_Sword; /* Signed large integer */ 34181624Skmacytypedef uint32_t Elf32_Word; /* Unsigned large integer */ 35181624Skmacytypedef uint16_t Elf32_Half; /* Unsigned medium integer */ 36181624Skmacy 37181624Skmacytypedef uint64_t Elf64_Addr; 38181624Skmacytypedef uint64_t Elf64_Off; 39181624Skmacytypedef int32_t Elf64_Shalf; 40181624Skmacy 41181624Skmacytypedef int32_t Elf64_Sword; 42181624Skmacytypedef uint32_t Elf64_Word; 43181624Skmacy 44181624Skmacytypedef int64_t Elf64_Sxword; 45181624Skmacytypedef uint64_t Elf64_Xword; 46181624Skmacy 47181624Skmacytypedef uint32_t Elf64_Half; 48181624Skmacytypedef uint16_t Elf64_Quarter; 49181624Skmacy 50181624Skmacy/* 51181624Skmacy * e_ident[] identification indexes 52181624Skmacy * See http://www.caldera.com/developers/gabi/2000-07-17/ch4.eheader.html 53181624Skmacy */ 54181624Skmacy#define EI_MAG0 0 /* file ID */ 55181624Skmacy#define EI_MAG1 1 /* file ID */ 56181624Skmacy#define EI_MAG2 2 /* file ID */ 57181624Skmacy#define EI_MAG3 3 /* file ID */ 58181624Skmacy#define EI_CLASS 4 /* file class */ 59181624Skmacy#define EI_DATA 5 /* data encoding */ 60181624Skmacy#define EI_VERSION 6 /* ELF header version */ 61181624Skmacy#define EI_OSABI 7 /* OS/ABI ID */ 62181624Skmacy#define EI_ABIVERSION 8 /* ABI version */ 63181624Skmacy#define EI_PAD 9 /* start of pad bytes */ 64181624Skmacy#define EI_NIDENT 16 /* Size of e_ident[] */ 65181624Skmacy 66181624Skmacy/* e_ident[] magic number */ 67181624Skmacy#define ELFMAG0 0x7f /* e_ident[EI_MAG0] */ 68181624Skmacy#define ELFMAG1 'E' /* e_ident[EI_MAG1] */ 69181624Skmacy#define ELFMAG2 'L' /* e_ident[EI_MAG2] */ 70181624Skmacy#define ELFMAG3 'F' /* e_ident[EI_MAG3] */ 71181624Skmacy#define ELFMAG "\177ELF" /* magic */ 72181624Skmacy#define SELFMAG 4 /* size of magic */ 73181624Skmacy 74181624Skmacy/* e_ident[] file class */ 75181624Skmacy#define ELFCLASSNONE 0 /* invalid */ 76181624Skmacy#define ELFCLASS32 1 /* 32-bit objs */ 77181624Skmacy#define ELFCLASS64 2 /* 64-bit objs */ 78181624Skmacy#define ELFCLASSNUM 3 /* number of classes */ 79181624Skmacy 80181624Skmacy/* e_ident[] data encoding */ 81181624Skmacy#define ELFDATANONE 0 /* invalid */ 82181624Skmacy#define ELFDATA2LSB 1 /* Little-Endian */ 83181624Skmacy#define ELFDATA2MSB 2 /* Big-Endian */ 84181624Skmacy#define ELFDATANUM 3 /* number of data encode defines */ 85181624Skmacy 86181624Skmacy/* e_ident[] Operating System/ABI */ 87181624Skmacy#define ELFOSABI_SYSV 0 /* UNIX System V ABI */ 88181624Skmacy#define ELFOSABI_HPUX 1 /* HP-UX operating system */ 89181624Skmacy#define ELFOSABI_NETBSD 2 /* NetBSD */ 90181624Skmacy#define ELFOSABI_LINUX 3 /* GNU/Linux */ 91181624Skmacy#define ELFOSABI_HURD 4 /* GNU/Hurd */ 92181624Skmacy#define ELFOSABI_86OPEN 5 /* 86Open common IA32 ABI */ 93181624Skmacy#define ELFOSABI_SOLARIS 6 /* Solaris */ 94181624Skmacy#define ELFOSABI_MONTEREY 7 /* Monterey */ 95181624Skmacy#define ELFOSABI_IRIX 8 /* IRIX */ 96181624Skmacy#define ELFOSABI_FREEBSD 9 /* FreeBSD */ 97181624Skmacy#define ELFOSABI_TRU64 10 /* TRU64 UNIX */ 98181624Skmacy#define ELFOSABI_MODESTO 11 /* Novell Modesto */ 99181624Skmacy#define ELFOSABI_OPENBSD 12 /* OpenBSD */ 100181624Skmacy#define ELFOSABI_ARM 97 /* ARM */ 101181624Skmacy#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ 102181624Skmacy 103181624Skmacy/* e_ident */ 104181624Skmacy#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \ 105181624Skmacy (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \ 106181624Skmacy (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \ 107181624Skmacy (ehdr).e_ident[EI_MAG3] == ELFMAG3) 108181624Skmacy 109181624Skmacy/* ELF Header */ 110181624Skmacytypedef struct elfhdr { 111181624Skmacy unsigned char e_ident[EI_NIDENT]; /* ELF Identification */ 112181624Skmacy Elf32_Half e_type; /* object file type */ 113181624Skmacy Elf32_Half e_machine; /* machine */ 114181624Skmacy Elf32_Word e_version; /* object file version */ 115181624Skmacy Elf32_Addr e_entry; /* virtual entry point */ 116181624Skmacy Elf32_Off e_phoff; /* program header table offset */ 117181624Skmacy Elf32_Off e_shoff; /* section header table offset */ 118181624Skmacy Elf32_Word e_flags; /* processor-specific flags */ 119181624Skmacy Elf32_Half e_ehsize; /* ELF header size */ 120181624Skmacy Elf32_Half e_phentsize; /* program header entry size */ 121181624Skmacy Elf32_Half e_phnum; /* number of program header entries */ 122181624Skmacy Elf32_Half e_shentsize; /* section header entry size */ 123181624Skmacy Elf32_Half e_shnum; /* number of section header entries */ 124181624Skmacy Elf32_Half e_shstrndx; /* section header table's "section 125181624Skmacy header string table" entry offset */ 126181624Skmacy} Elf32_Ehdr; 127181624Skmacy 128181624Skmacytypedef struct { 129181624Skmacy unsigned char e_ident[EI_NIDENT]; /* Id bytes */ 130181624Skmacy Elf64_Quarter e_type; /* file type */ 131181624Skmacy Elf64_Quarter e_machine; /* machine type */ 132181624Skmacy Elf64_Half e_version; /* version number */ 133181624Skmacy Elf64_Addr e_entry; /* entry point */ 134181624Skmacy Elf64_Off e_phoff; /* Program hdr offset */ 135181624Skmacy Elf64_Off e_shoff; /* Section hdr offset */ 136181624Skmacy Elf64_Half e_flags; /* Processor flags */ 137181624Skmacy Elf64_Quarter e_ehsize; /* sizeof ehdr */ 138181624Skmacy Elf64_Quarter e_phentsize; /* Program header entry size */ 139181624Skmacy Elf64_Quarter e_phnum; /* Number of program headers */ 140181624Skmacy Elf64_Quarter e_shentsize; /* Section header entry size */ 141181624Skmacy Elf64_Quarter e_shnum; /* Number of section headers */ 142181624Skmacy Elf64_Quarter e_shstrndx; /* String table index */ 143181624Skmacy} Elf64_Ehdr; 144181624Skmacy 145181624Skmacy/* e_type */ 146181624Skmacy#define ET_NONE 0 /* No file type */ 147181624Skmacy#define ET_REL 1 /* relocatable file */ 148181624Skmacy#define ET_EXEC 2 /* executable file */ 149181624Skmacy#define ET_DYN 3 /* shared object file */ 150181624Skmacy#define ET_CORE 4 /* core file */ 151181624Skmacy#define ET_NUM 5 /* number of types */ 152181624Skmacy#define ET_LOPROC 0xff00 /* reserved range for processor */ 153181624Skmacy#define ET_HIPROC 0xffff /* specific e_type */ 154181624Skmacy 155181624Skmacy/* e_machine */ 156181624Skmacy#define EM_NONE 0 /* No Machine */ 157181624Skmacy#define EM_M32 1 /* AT&T WE 32100 */ 158181624Skmacy#define EM_SPARC 2 /* SPARC */ 159181624Skmacy#define EM_386 3 /* Intel 80386 */ 160181624Skmacy#define EM_68K 4 /* Motorola 68000 */ 161181624Skmacy#define EM_88K 5 /* Motorola 88000 */ 162181624Skmacy#define EM_486 6 /* Intel 80486 - unused? */ 163181624Skmacy#define EM_860 7 /* Intel 80860 */ 164181624Skmacy#define EM_MIPS 8 /* MIPS R3000 Big-Endian only */ 165181624Skmacy/* 166181624Skmacy * Don't know if EM_MIPS_RS4_BE, 167181624Skmacy * EM_SPARC64, EM_PARISC, 168181624Skmacy * or EM_PPC are ABI compliant 169181624Skmacy */ 170181624Skmacy#define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */ 171181624Skmacy#define EM_SPARC64 11 /* SPARC v9 64-bit unoffical */ 172181624Skmacy#define EM_PARISC 15 /* HPPA */ 173181624Skmacy#define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */ 174181624Skmacy#define EM_PPC 20 /* PowerPC */ 175181624Skmacy#define EM_PPC64 21 /* PowerPC 64-bit */ 176181624Skmacy#define EM_ARM 40 /* Advanced RISC Machines ARM */ 177181624Skmacy#define EM_ALPHA 41 /* DEC ALPHA */ 178181624Skmacy#define EM_SPARCV9 43 /* SPARC version 9 */ 179181624Skmacy#define EM_ALPHA_EXP 0x9026 /* DEC ALPHA */ 180181624Skmacy#define EM_IA_64 50 /* Intel Merced */ 181181624Skmacy#define EM_X86_64 62 /* AMD x86-64 architecture */ 182181624Skmacy#define EM_VAX 75 /* DEC VAX */ 183181624Skmacy 184181624Skmacy/* Version */ 185181624Skmacy#define EV_NONE 0 /* Invalid */ 186181624Skmacy#define EV_CURRENT 1 /* Current */ 187181624Skmacy#define EV_NUM 2 /* number of versions */ 188181624Skmacy 189181624Skmacy/* Section Header */ 190181624Skmacytypedef struct { 191181624Skmacy Elf32_Word sh_name; /* name - index into section header 192181624Skmacy string table section */ 193181624Skmacy Elf32_Word sh_type; /* type */ 194181624Skmacy Elf32_Word sh_flags; /* flags */ 195181624Skmacy Elf32_Addr sh_addr; /* address */ 196181624Skmacy Elf32_Off sh_offset; /* file offset */ 197181624Skmacy Elf32_Word sh_size; /* section size */ 198181624Skmacy Elf32_Word sh_link; /* section header table index link */ 199181624Skmacy Elf32_Word sh_info; /* extra information */ 200181624Skmacy Elf32_Word sh_addralign; /* address alignment */ 201181624Skmacy Elf32_Word sh_entsize; /* section entry size */ 202181624Skmacy} Elf32_Shdr; 203181624Skmacy 204181624Skmacytypedef struct { 205181624Skmacy Elf64_Half sh_name; /* section name */ 206181624Skmacy Elf64_Half sh_type; /* section type */ 207181624Skmacy Elf64_Xword sh_flags; /* section flags */ 208181624Skmacy Elf64_Addr sh_addr; /* virtual address */ 209181624Skmacy Elf64_Off sh_offset; /* file offset */ 210181624Skmacy Elf64_Xword sh_size; /* section size */ 211181624Skmacy Elf64_Half sh_link; /* link to another */ 212181624Skmacy Elf64_Half sh_info; /* misc info */ 213181624Skmacy Elf64_Xword sh_addralign; /* memory alignment */ 214181624Skmacy Elf64_Xword sh_entsize; /* table entry size */ 215181624Skmacy} Elf64_Shdr; 216181624Skmacy 217181624Skmacy/* Special Section Indexes */ 218181624Skmacy#define SHN_UNDEF 0 /* undefined */ 219181624Skmacy#define SHN_LORESERVE 0xff00 /* lower bounds of reserved indexes */ 220181624Skmacy#define SHN_LOPROC 0xff00 /* reserved range for processor */ 221181624Skmacy#define SHN_HIPROC 0xff1f /* specific section indexes */ 222181624Skmacy#define SHN_ABS 0xfff1 /* absolute value */ 223181624Skmacy#define SHN_COMMON 0xfff2 /* common symbol */ 224181624Skmacy#define SHN_HIRESERVE 0xffff /* upper bounds of reserved indexes */ 225181624Skmacy 226181624Skmacy/* sh_type */ 227181624Skmacy#define SHT_NULL 0 /* inactive */ 228181624Skmacy#define SHT_PROGBITS 1 /* program defined information */ 229181624Skmacy#define SHT_SYMTAB 2 /* symbol table section */ 230181624Skmacy#define SHT_STRTAB 3 /* string table section */ 231181624Skmacy#define SHT_RELA 4 /* relocation section with addends*/ 232181624Skmacy#define SHT_HASH 5 /* symbol hash table section */ 233181624Skmacy#define SHT_DYNAMIC 6 /* dynamic section */ 234181624Skmacy#define SHT_NOTE 7 /* note section */ 235181624Skmacy#define SHT_NOBITS 8 /* no space section */ 236181624Skmacy#define SHT_REL 9 /* relation section without addends */ 237181624Skmacy#define SHT_SHLIB 10 /* reserved - purpose unknown */ 238181624Skmacy#define SHT_DYNSYM 11 /* dynamic symbol table section */ 239181624Skmacy#define SHT_NUM 12 /* number of section types */ 240181624Skmacy#define SHT_LOPROC 0x70000000 /* reserved range for processor */ 241181624Skmacy#define SHT_HIPROC 0x7fffffff /* specific section header types */ 242181624Skmacy#define SHT_LOUSER 0x80000000 /* reserved range for application */ 243181624Skmacy#define SHT_HIUSER 0xffffffff /* specific indexes */ 244181624Skmacy 245181624Skmacy/* Section names */ 246181624Skmacy#define ELF_BSS ".bss" /* uninitialized data */ 247181624Skmacy#define ELF_DATA ".data" /* initialized data */ 248181624Skmacy#define ELF_DEBUG ".debug" /* debug */ 249181624Skmacy#define ELF_DYNAMIC ".dynamic" /* dynamic linking information */ 250181624Skmacy#define ELF_DYNSTR ".dynstr" /* dynamic string table */ 251181624Skmacy#define ELF_DYNSYM ".dynsym" /* dynamic symbol table */ 252181624Skmacy#define ELF_FINI ".fini" /* termination code */ 253181624Skmacy#define ELF_GOT ".got" /* global offset table */ 254181624Skmacy#define ELF_HASH ".hash" /* symbol hash table */ 255181624Skmacy#define ELF_INIT ".init" /* initialization code */ 256181624Skmacy#define ELF_REL_DATA ".rel.data" /* relocation data */ 257181624Skmacy#define ELF_REL_FINI ".rel.fini" /* relocation termination code */ 258181624Skmacy#define ELF_REL_INIT ".rel.init" /* relocation initialization code */ 259181624Skmacy#define ELF_REL_DYN ".rel.dyn" /* relocaltion dynamic link info */ 260181624Skmacy#define ELF_REL_RODATA ".rel.rodata" /* relocation read-only data */ 261181624Skmacy#define ELF_REL_TEXT ".rel.text" /* relocation code */ 262181624Skmacy#define ELF_RODATA ".rodata" /* read-only data */ 263181624Skmacy#define ELF_SHSTRTAB ".shstrtab" /* section header string table */ 264181624Skmacy#define ELF_STRTAB ".strtab" /* string table */ 265181624Skmacy#define ELF_SYMTAB ".symtab" /* symbol table */ 266181624Skmacy#define ELF_TEXT ".text" /* code */ 267181624Skmacy 268181624Skmacy 269181624Skmacy/* Section Attribute Flags - sh_flags */ 270181624Skmacy#define SHF_WRITE 0x1 /* Writable */ 271181624Skmacy#define SHF_ALLOC 0x2 /* occupies memory */ 272181624Skmacy#define SHF_EXECINSTR 0x4 /* executable */ 273181624Skmacy#define SHF_MASKPROC 0xf0000000 /* reserved bits for processor */ 274181624Skmacy /* specific section attributes */ 275181624Skmacy 276181624Skmacy/* Symbol Table Entry */ 277181624Skmacytypedef struct elf32_sym { 278181624Skmacy Elf32_Word st_name; /* name - index into string table */ 279181624Skmacy Elf32_Addr st_value; /* symbol value */ 280181624Skmacy Elf32_Word st_size; /* symbol size */ 281181624Skmacy unsigned char st_info; /* type and binding */ 282181624Skmacy unsigned char st_other; /* 0 - no defined meaning */ 283181624Skmacy Elf32_Half st_shndx; /* section header index */ 284181624Skmacy} Elf32_Sym; 285181624Skmacy 286181624Skmacytypedef struct { 287181624Skmacy Elf64_Half st_name; /* Symbol name index in str table */ 288181624Skmacy Elf_Byte st_info; /* type / binding attrs */ 289181624Skmacy Elf_Byte st_other; /* unused */ 290181624Skmacy Elf64_Quarter st_shndx; /* section index of symbol */ 291181624Skmacy Elf64_Xword st_value; /* value of symbol */ 292181624Skmacy Elf64_Xword st_size; /* size of symbol */ 293181624Skmacy} Elf64_Sym; 294181624Skmacy 295181624Skmacy/* Symbol table index */ 296181624Skmacy#define STN_UNDEF 0 /* undefined */ 297181624Skmacy 298181624Skmacy/* Extract symbol info - st_info */ 299181624Skmacy#define ELF32_ST_BIND(x) ((x) >> 4) 300181624Skmacy#define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf) 301181624Skmacy#define ELF32_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf)) 302181624Skmacy 303181624Skmacy#define ELF64_ST_BIND(x) ((x) >> 4) 304181624Skmacy#define ELF64_ST_TYPE(x) (((unsigned int) x) & 0xf) 305181624Skmacy#define ELF64_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf)) 306181624Skmacy 307181624Skmacy/* Symbol Binding - ELF32_ST_BIND - st_info */ 308181624Skmacy#define STB_LOCAL 0 /* Local symbol */ 309181624Skmacy#define STB_GLOBAL 1 /* Global symbol */ 310181624Skmacy#define STB_WEAK 2 /* like global - lower precedence */ 311181624Skmacy#define STB_NUM 3 /* number of symbol bindings */ 312181624Skmacy#define STB_LOPROC 13 /* reserved range for processor */ 313181624Skmacy#define STB_HIPROC 15 /* specific symbol bindings */ 314181624Skmacy 315181624Skmacy/* Symbol type - ELF32_ST_TYPE - st_info */ 316181624Skmacy#define STT_NOTYPE 0 /* not specified */ 317181624Skmacy#define STT_OBJECT 1 /* data object */ 318181624Skmacy#define STT_FUNC 2 /* function */ 319181624Skmacy#define STT_SECTION 3 /* section */ 320181624Skmacy#define STT_FILE 4 /* file */ 321181624Skmacy#define STT_NUM 5 /* number of symbol types */ 322181624Skmacy#define STT_LOPROC 13 /* reserved range for processor */ 323181624Skmacy#define STT_HIPROC 15 /* specific symbol types */ 324181624Skmacy 325181624Skmacy/* Relocation entry with implicit addend */ 326181624Skmacytypedef struct { 327181624Skmacy Elf32_Addr r_offset; /* offset of relocation */ 328181624Skmacy Elf32_Word r_info; /* symbol table index and type */ 329181624Skmacy} Elf32_Rel; 330181624Skmacy 331181624Skmacy/* Relocation entry with explicit addend */ 332181624Skmacytypedef struct { 333181624Skmacy Elf32_Addr r_offset; /* offset of relocation */ 334181624Skmacy Elf32_Word r_info; /* symbol table index and type */ 335181624Skmacy Elf32_Sword r_addend; 336181624Skmacy} Elf32_Rela; 337181624Skmacy 338181624Skmacy/* Extract relocation info - r_info */ 339181624Skmacy#define ELF32_R_SYM(i) ((i) >> 8) 340181624Skmacy#define ELF32_R_TYPE(i) ((unsigned char) (i)) 341181624Skmacy#define ELF32_R_INFO(s,t) (((s) << 8) + (unsigned char)(t)) 342181624Skmacy 343181624Skmacytypedef struct { 344181624Skmacy Elf64_Xword r_offset; /* where to do it */ 345181624Skmacy Elf64_Xword r_info; /* index & type of relocation */ 346181624Skmacy} Elf64_Rel; 347181624Skmacy 348181624Skmacytypedef struct { 349181624Skmacy Elf64_Xword r_offset; /* where to do it */ 350181624Skmacy Elf64_Xword r_info; /* index & type of relocation */ 351181624Skmacy Elf64_Sxword r_addend; /* adjustment value */ 352181624Skmacy} Elf64_Rela; 353181624Skmacy 354181624Skmacy#define ELF64_R_SYM(info) ((info) >> 32) 355181624Skmacy#define ELF64_R_TYPE(info) ((info) & 0xFFFFFFFF) 356181624Skmacy#define ELF64_R_INFO(s,t) (((s) << 32) + (u_int32_t)(t)) 357181624Skmacy 358181624Skmacy/* Program Header */ 359181624Skmacytypedef struct { 360181624Skmacy Elf32_Word p_type; /* segment type */ 361181624Skmacy Elf32_Off p_offset; /* segment offset */ 362181624Skmacy Elf32_Addr p_vaddr; /* virtual address of segment */ 363181624Skmacy Elf32_Addr p_paddr; /* physical address - ignored? */ 364181624Skmacy Elf32_Word p_filesz; /* number of bytes in file for seg. */ 365181624Skmacy Elf32_Word p_memsz; /* number of bytes in mem. for seg. */ 366181624Skmacy Elf32_Word p_flags; /* flags */ 367181624Skmacy Elf32_Word p_align; /* memory alignment */ 368181624Skmacy} Elf32_Phdr; 369181624Skmacy 370181624Skmacytypedef struct { 371181624Skmacy Elf64_Half p_type; /* entry type */ 372181624Skmacy Elf64_Half p_flags; /* flags */ 373181624Skmacy Elf64_Off p_offset; /* offset */ 374181624Skmacy Elf64_Addr p_vaddr; /* virtual address */ 375181624Skmacy Elf64_Addr p_paddr; /* physical address */ 376181624Skmacy Elf64_Xword p_filesz; /* file size */ 377181624Skmacy Elf64_Xword p_memsz; /* memory size */ 378181624Skmacy Elf64_Xword p_align; /* memory & file alignment */ 379181624Skmacy} Elf64_Phdr; 380181624Skmacy 381181624Skmacy/* Segment types - p_type */ 382181624Skmacy#define PT_NULL 0 /* unused */ 383181624Skmacy#define PT_LOAD 1 /* loadable segment */ 384181624Skmacy#define PT_DYNAMIC 2 /* dynamic linking section */ 385181624Skmacy#define PT_INTERP 3 /* the RTLD */ 386181624Skmacy#define PT_NOTE 4 /* auxiliary information */ 387181624Skmacy#define PT_SHLIB 5 /* reserved - purpose undefined */ 388181624Skmacy#define PT_PHDR 6 /* program header */ 389181624Skmacy#define PT_NUM 7 /* Number of segment types */ 390181624Skmacy#define PT_LOPROC 0x70000000 /* reserved range for processor */ 391181624Skmacy#define PT_HIPROC 0x7fffffff /* specific segment types */ 392181624Skmacy 393181624Skmacy/* Segment flags - p_flags */ 394181624Skmacy#define PF_X 0x1 /* Executable */ 395181624Skmacy#define PF_W 0x2 /* Writable */ 396181624Skmacy#define PF_R 0x4 /* Readable */ 397181624Skmacy#define PF_MASKPROC 0xf0000000 /* reserved bits for processor */ 398181624Skmacy /* specific segment flags */ 399181624Skmacy 400181624Skmacy/* Dynamic structure */ 401181624Skmacytypedef struct { 402181624Skmacy Elf32_Sword d_tag; /* controls meaning of d_val */ 403181624Skmacy union { 404181624Skmacy Elf32_Word d_val; /* Multiple meanings - see d_tag */ 405181624Skmacy Elf32_Addr d_ptr; /* program virtual address */ 406181624Skmacy } d_un; 407181624Skmacy} Elf32_Dyn; 408181624Skmacy 409181624Skmacytypedef struct { 410181624Skmacy Elf64_Xword d_tag; /* controls meaning of d_val */ 411181624Skmacy union { 412181624Skmacy Elf64_Addr d_ptr; 413181624Skmacy Elf64_Xword d_val; 414181624Skmacy } d_un; 415181624Skmacy} Elf64_Dyn; 416181624Skmacy 417181624Skmacy/* Dynamic Array Tags - d_tag */ 418181624Skmacy#define DT_NULL 0 /* marks end of _DYNAMIC array */ 419181624Skmacy#define DT_NEEDED 1 /* string table offset of needed lib */ 420181624Skmacy#define DT_PLTRELSZ 2 /* size of relocation entries in PLT */ 421181624Skmacy#define DT_PLTGOT 3 /* address PLT/GOT */ 422181624Skmacy#define DT_HASH 4 /* address of symbol hash table */ 423181624Skmacy#define DT_STRTAB 5 /* address of string table */ 424181624Skmacy#define DT_SYMTAB 6 /* address of symbol table */ 425181624Skmacy#define DT_RELA 7 /* address of relocation table */ 426181624Skmacy#define DT_RELASZ 8 /* size of relocation table */ 427181624Skmacy#define DT_RELAENT 9 /* size of relocation entry */ 428181624Skmacy#define DT_STRSZ 10 /* size of string table */ 429181624Skmacy#define DT_SYMENT 11 /* size of symbol table entry */ 430181624Skmacy#define DT_INIT 12 /* address of initialization func. */ 431181624Skmacy#define DT_FINI 13 /* address of termination function */ 432181624Skmacy#define DT_SONAME 14 /* string table offset of shared obj */ 433181624Skmacy#define DT_RPATH 15 /* string table offset of library 434181624Skmacy search path */ 435181624Skmacy#define DT_SYMBOLIC 16 /* start sym search in shared obj. */ 436181624Skmacy#define DT_REL 17 /* address of rel. tbl. w addends */ 437181624Skmacy#define DT_RELSZ 18 /* size of DT_REL relocation table */ 438181624Skmacy#define DT_RELENT 19 /* size of DT_REL relocation entry */ 439181624Skmacy#define DT_PLTREL 20 /* PLT referenced relocation entry */ 440181624Skmacy#define DT_DEBUG 21 /* bugger */ 441181624Skmacy#define DT_TEXTREL 22 /* Allow rel. mod. to unwritable seg */ 442181624Skmacy#define DT_JMPREL 23 /* add. of PLT's relocation entries */ 443181624Skmacy#define DT_BIND_NOW 24 /* Bind now regardless of env setting */ 444181624Skmacy#define DT_NUM 25 /* Number used. */ 445181624Skmacy#define DT_LOPROC 0x70000000 /* reserved range for processor */ 446181624Skmacy#define DT_HIPROC 0x7fffffff /* specific dynamic array tags */ 447181624Skmacy 448181624Skmacy/* Standard ELF hashing function */ 449181624Skmacyunsigned int elf_hash(const unsigned char *name); 450181624Skmacy 451181624Skmacy/* 452181624Skmacy * Note Definitions 453181624Skmacy */ 454181624Skmacytypedef struct { 455181624Skmacy Elf32_Word namesz; 456181624Skmacy Elf32_Word descsz; 457181624Skmacy Elf32_Word type; 458181624Skmacy} Elf32_Note; 459181624Skmacy 460181624Skmacytypedef struct { 461181624Skmacy Elf64_Half namesz; 462181624Skmacy Elf64_Half descsz; 463181624Skmacy Elf64_Half type; 464181624Skmacy} Elf64_Note; 465181624Skmacy 466181624Skmacy 467181624Skmacy#if defined(ELFSIZE) 468181624Skmacy#define CONCAT(x,y) __CONCAT(x,y) 469181624Skmacy#define ELFNAME(x) CONCAT(elf,CONCAT(ELFSIZE,CONCAT(_,x))) 470181624Skmacy#define ELFNAME2(x,y) CONCAT(x,CONCAT(_elf,CONCAT(ELFSIZE,CONCAT(_,y)))) 471181624Skmacy#define ELFNAMEEND(x) CONCAT(x,CONCAT(_elf,ELFSIZE)) 472181624Skmacy#define ELFDEFNNAME(x) CONCAT(ELF,CONCAT(ELFSIZE,CONCAT(_,x))) 473181624Skmacy#endif 474181624Skmacy 475181624Skmacy#if defined(ELFSIZE) && (ELFSIZE == 32) 476181624Skmacy#define Elf_Ehdr Elf32_Ehdr 477181624Skmacy#define Elf_Phdr Elf32_Phdr 478181624Skmacy#define Elf_Shdr Elf32_Shdr 479181624Skmacy#define Elf_Sym Elf32_Sym 480181624Skmacy#define Elf_Rel Elf32_Rel 481181624Skmacy#define Elf_RelA Elf32_Rela 482181624Skmacy#define Elf_Dyn Elf32_Dyn 483181624Skmacy#define Elf_Word Elf32_Word 484181624Skmacy#define Elf_Sword Elf32_Sword 485181624Skmacy#define Elf_Addr Elf32_Addr 486181624Skmacy#define Elf_Off Elf32_Off 487181624Skmacy#define Elf_Nhdr Elf32_Nhdr 488181624Skmacy#define Elf_Note Elf32_Note 489181624Skmacy 490181624Skmacy#define ELF_R_SYM ELF32_R_SYM 491181624Skmacy#define ELF_R_TYPE ELF32_R_TYPE 492181624Skmacy#define ELF_R_INFO ELF32_R_INFO 493181624Skmacy#define ELFCLASS ELFCLASS32 494181624Skmacy 495181624Skmacy#define ELF_ST_BIND ELF32_ST_BIND 496181624Skmacy#define ELF_ST_TYPE ELF32_ST_TYPE 497181624Skmacy#define ELF_ST_INFO ELF32_ST_INFO 498181624Skmacy 499181624Skmacy#define AuxInfo Aux32Info 500181624Skmacy#elif defined(ELFSIZE) && (ELFSIZE == 64) 501181624Skmacy#define Elf_Ehdr Elf64_Ehdr 502181624Skmacy#define Elf_Phdr Elf64_Phdr 503181624Skmacy#define Elf_Shdr Elf64_Shdr 504181624Skmacy#define Elf_Sym Elf64_Sym 505181624Skmacy#define Elf_Rel Elf64_Rel 506181624Skmacy#define Elf_RelA Elf64_Rela 507181624Skmacy#define Elf_Dyn Elf64_Dyn 508181624Skmacy#define Elf_Word Elf64_Word 509181624Skmacy#define Elf_Sword Elf64_Sword 510181624Skmacy#define Elf_Addr Elf64_Addr 511181624Skmacy#define Elf_Off Elf64_Off 512181624Skmacy#define Elf_Nhdr Elf64_Nhdr 513181624Skmacy#define Elf_Note Elf64_Note 514181624Skmacy 515181624Skmacy#define ELF_R_SYM ELF64_R_SYM 516181624Skmacy#define ELF_R_TYPE ELF64_R_TYPE 517181624Skmacy#define ELF_R_INFO ELF64_R_INFO 518181624Skmacy#define ELFCLASS ELFCLASS64 519181624Skmacy 520181624Skmacy#define ELF_ST_BIND ELF64_ST_BIND 521181624Skmacy#define ELF_ST_TYPE ELF64_ST_TYPE 522181624Skmacy#define ELF_ST_INFO ELF64_ST_INFO 523181624Skmacy 524181624Skmacy#define AuxInfo Aux64Info 525181624Skmacy#endif 526181624Skmacy 527181624Skmacy#endif /* __XEN_PUBLIC_ELFSTRUCTS_H__ */ 528