1 /*- 2 * Copyright (c) 1996-1997 John D. Polstra. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, 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 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _MACHINE_ELF_H_ 30 #define _MACHINE_ELF_H_ 1 31 32 /* 33 * ELF definitions for the AMD64 architecture. 34 */ 35 36 37 #ifndef __ELF_WORD_SIZE 38 #define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */ 39 #endif 40 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 41 #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ 42 #include <sys/elf_generic.h> 43 44 #define ELF_ARCH EM_X86_64 45 #define ELF_ARCH32 EM_386 46 47 #define ELF_MACHINE_OK(x) ((x) == EM_X86_64) 48 49 /* 50 * Auxiliary vector entries for passing information to the interpreter. 51 * 52 * The i386 supplement to the SVR4 ABI specification names this "auxv_t", 53 * but POSIX lays claim to all symbols ending with "_t". 54 */ 55 typedef struct { /* Auxiliary vector entry on initial stack */ 56 int a_type; /* Entry type. */ 57 union { 58 int a_val; /* Integer value. */ 59 } a_un; 60 } Elf32_Auxinfo; 61 62 63 typedef struct { /* Auxiliary vector entry on initial stack */ 64 long a_type; /* Entry type. */ 65 union { 66 long a_val; /* Integer value. */ 67 void *a_ptr; /* Address. */ 68 void (*a_fcn)(void); /* Function pointer (not used). */ 69 } a_un; 70 } Elf64_Auxinfo; 71 72 __ElfType(Auxinfo); 73 74 /* Values for a_type. */ 75 #define AT_NULL 0 /* Terminates the vector. */ 76 #define AT_IGNORE 1 /* Ignored entry. */ 77 #define AT_EXECFD 2 /* File descriptor of program to load. */ 78 #define AT_PHDR 3 /* Program header of program already loaded. */ 79 #define AT_PHENT 4 /* Size of each program header entry. */ 80 #define AT_PHNUM 5 /* Number of program header entries. */ 81 #define AT_PAGESZ 6 /* Page size in bytes. */ 82 #define AT_BASE 7 /* Interpreter's base address. */ 83 #define AT_FLAGS 8 /* Flags (unused for i386). */ 84 #define AT_ENTRY 9 /* Where interpreter should transfer control. */ 85 #define AT_NOTELF 10 /* Program is not ELF ?? */ 86 #define AT_UID 11 /* Real uid. */ 87 #define AT_EUID 12 /* Effective uid. */ 88 #define AT_GID 13 /* Real gid. */ 89 #define AT_EGID 14 /* Effective gid. */ 90 #define AT_EXECPATH 15 /* Path to the executable. */ 91 #define AT_CANARY 16 /* Canary for SSP */ 92 #define AT_CANARYLEN 17 /* Length of the canary. */ 93 #define AT_OSRELDATE 18 /* OSRELDATE. */ 94 #define AT_NCPUS 19 /* Number of CPUs. */ 95 #define AT_PAGESIZES 20 /* Pagesizes. */ 96 #define AT_PAGESIZESLEN 21 /* Number of pagesizes. */ 97 #define AT_TIMEKEEP 22 /* Pointer to timehands. */ 98 #define AT_STACKPROT 23 /* Initial stack protection. */ 99 100 #define AT_COUNT 24 /* Count of defined aux entry types. */ 101 102 /* 103 * Relocation types. 104 */ 105 106 #define R_X86_64_COUNT 24 /* Count of defined relocation types. */ 107 108 /* Define "machine" characteristics */ 109 #if __ELF_WORD_SIZE == 32 110 #define ELF_TARG_CLASS ELFCLASS32 111 #else 112 #define ELF_TARG_CLASS ELFCLASS64 113 #endif 114 #define ELF_TARG_DATA ELFDATA2LSB 115 #define ELF_TARG_MACH EM_X86_64 116 #define ELF_TARG_VER 1 117 118 #if __ELF_WORD_SIZE == 32 119 #define ET_DYN_LOAD_ADDR 0x01001000 120 #else 121 #define ET_DYN_LOAD_ADDR 0x01021000 122 #endif 123 124 #endif /* !_MACHINE_ELF_H_ */ 125