/*- * Copyright (c) 1996-1997 John D. Polstra. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _MACHINE_ELF_H_ #define _MACHINE_ELF_H_ 1 #if defined(__i386__) || defined(_MACHINE_ELF_WANT_32BIT) /* * ELF definitions for the i386 architecture. */ #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ #if defined(__ELF_WORD_SIZE) && __ELF_WORD_SIZE == 64 #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ #endif #ifndef __ELF_WORD_SIZE #define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */ #endif #include <sys/elf_generic.h> #define ELF_ARCH EM_386 #define ELF_MACHINE_OK(x) ((x) == EM_386 || (x) == EM_486) /* * Auxiliary vector entries for passing information to the interpreter. * * The i386 supplement to the SVR4 ABI specification names this "auxv_t", * but POSIX lays claim to all symbols ending with "_t". */ typedef struct { /* Auxiliary vector entry on initial stack */ int a_type; /* Entry type. */ union { long a_val; /* Integer value. */ void *a_ptr; /* Address. */ void (*a_fcn)(void); /* Function pointer (not used). */ } a_un; } Elf32_Auxinfo; #if __ELF_WORD_SIZE == 64 /* Fake for amd64 loader support */ typedef struct { int fake; } Elf64_Auxinfo; #endif __ElfType(Auxinfo); /* Values for a_type. */ #define AT_NULL 0 /* Terminates the vector. */ #define AT_IGNORE 1 /* Ignored entry. */ #define AT_EXECFD 2 /* File descriptor of program to load. */ #define AT_PHDR 3 /* Program header of program already loaded. */ #define AT_PHENT 4 /* Size of each program header entry. */ #define AT_PHNUM 5 /* Number of program header entries. */ #define AT_PAGESZ 6 /* Page size in bytes. */ #define AT_BASE 7 /* Interpreter's base address. */ #define AT_FLAGS 8 /* Flags (unused for i386). */ #define AT_ENTRY 9 /* Where interpreter should transfer control. */ #define AT_NOTELF 10 /* Program is not ELF ?? */ #define AT_UID 11 /* Real uid. */ #define AT_EUID 12 /* Effective uid. */ #define AT_GID 13 /* Real gid. */ #define AT_EGID 14 /* Effective gid. */ #define AT_EXECPATH 15 /* Path to the executable. */ #define AT_CANARY 16 /* Canary for SSP. */ #define AT_CANARYLEN 17 /* Length of the canary. */ #define AT_OSRELDATE 18 /* OSRELDATE. */ #define AT_NCPUS 19 /* Number of CPUs. */ #define AT_PAGESIZES 20 /* Pagesizes. */ #define AT_PAGESIZESLEN 21 /* Number of pagesizes. */ #define AT_TIMEKEEP 22 /* Pointer to timehands. */ #define AT_STACKPROT 23 /* Initial stack protection. */ #define AT_COUNT 24 /* Count of defined aux entry types. */ /* * Relocation types. */ #define R_386_COUNT 38 /* Count of defined relocation types. */ /* Define "machine" characteristics */ #define ELF_TARG_CLASS ELFCLASS32 #define ELF_TARG_DATA ELFDATA2LSB #define ELF_TARG_MACH EM_386 #define ELF_TARG_VER 1 #define ET_DYN_LOAD_ADDR 0x01001000 #elif defined(__amd64__) /* * ELF definitions for the AMD64 architecture. */ #ifndef __ELF_WORD_SIZE #define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */ #endif #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ #include <sys/elf_generic.h> #define ELF_ARCH EM_X86_64 #define ELF_ARCH32 EM_386 #define ELF_MACHINE_OK(x) ((x) == EM_X86_64) /* * Auxiliary vector entries for passing information to the interpreter. * * The i386 supplement to the SVR4 ABI specification names this "auxv_t", * but POSIX lays claim to all symbols ending with "_t". */ typedef struct { /* Auxiliary vector entry on initial stack */ int a_type; /* Entry type. */ union { int a_val; /* Integer value. */ } a_un; } Elf32_Auxinfo; typedef struct { /* Auxiliary vector entry on initial stack */ long a_type; /* Entry type. */ union { long a_val; /* Integer value. */ void *a_ptr; /* Address. */ void (*a_fcn)(void); /* Function pointer (not used). */ } a_un; } Elf64_Auxinfo; __ElfType(Auxinfo); /* Values for a_type. */ #define AT_NULL 0 /* Terminates the vector. */ #define AT_IGNORE 1 /* Ignored entry. */ #define AT_EXECFD 2 /* File descriptor of program to load. */ #define AT_PHDR 3 /* Program header of program already loaded. */ #define AT_PHENT 4 /* Size of each program header entry. */ #define AT_PHNUM 5 /* Number of program header entries. */ #define AT_PAGESZ 6 /* Page size in bytes. */ #define AT_BASE 7 /* Interpreter's base address. */ #define AT_FLAGS 8 /* Flags (unused for i386). */ #define AT_ENTRY 9 /* Where interpreter should transfer control. */ #define AT_NOTELF 10 /* Program is not ELF ?? */ #define AT_UID 11 /* Real uid. */ #define AT_EUID 12 /* Effective uid. */ #define AT_GID 13 /* Real gid. */ #define AT_EGID 14 /* Effective gid. */ #define AT_EXECPATH 15 /* Path to the executable. */ #define AT_CANARY 16 /* Canary for SSP */ #define AT_CANARYLEN 17 /* Length of the canary. */ #define AT_OSRELDATE 18 /* OSRELDATE. */ #define AT_NCPUS 19 /* Number of CPUs. */ #define AT_PAGESIZES 20 /* Pagesizes. */ #define AT_PAGESIZESLEN 21 /* Number of pagesizes. */ #define AT_TIMEKEEP 22 /* Pointer to timehands. */ #define AT_STACKPROT 23 /* Initial stack protection. */ #define AT_COUNT 24 /* Count of defined aux entry types. */ /* * Relocation types. */ #define R_X86_64_COUNT 24 /* Count of defined relocation types. */ /* Define "machine" characteristics */ #if __ELF_WORD_SIZE == 32 #define ELF_TARG_CLASS ELFCLASS32 #else #define ELF_TARG_CLASS ELFCLASS64 #endif #define ELF_TARG_DATA ELFDATA2LSB #define ELF_TARG_MACH EM_X86_64 #define ELF_TARG_VER 1 #if __ELF_WORD_SIZE == 32 #define ET_DYN_LOAD_ADDR 0x01001000 #else #define ET_DYN_LOAD_ADDR 0x01021000 #endif #endif /* __i386__, __amd64__ */ #endif /* !_MACHINE_ELF_H_ */
