1/*- 2 * Copyright (c) 2001 David E. O'Brien 3 * Copyright (c) 1996-1997 John D. Polstra. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: releng/10.3/sys/powerpc/include/elf.h 237430 2012-06-22 06:38:31Z kib $ 28 */ 29 30#ifndef _MACHINE_ELF_H_ 31#define _MACHINE_ELF_H_ 1 32 33/* 34 * EABI ELF definitions for the PowerPC architecture. 35 * See "PowerPC Embedded Application Binary Interface, 32-Bit Impliementation" 36 * [ppc-eabi-1995-01.pdf] for details. 37 */ 38 39#ifndef __ELF_WORD_SIZE 40#ifdef __powerpc64__ 41#define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */ 42#else 43#define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */ 44#endif 45#endif 46 47#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 48#include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ 49#include <sys/elf_generic.h> 50 51#if __ELF_WORD_SIZE == 64 52#define ELF_ARCH EM_PPC64 53#define ELF_MACHINE_OK(x) ((x) == EM_PPC64) 54#else 55#define ELF_ARCH EM_PPC 56#define ELF_ARCH32 EM_PPC 57#define ELF_MACHINE_OK(x) ((x) == EM_PPC) 58#endif 59 60/* 61 * Auxiliary vector entries for passing information to the interpreter. 62 * 63 * The PowerPC supplement to the SVR4 ABI specification names this "auxv_t", 64 * but POSIX lays claim to all symbols ending with "_t". 65 */ 66 67typedef struct { /* Auxiliary vector entry on initial stack */ 68 int a_type; /* Entry type. */ 69 union { 70 long a_val; /* Integer value. */ 71 void *a_ptr; /* Address. */ 72 void (*a_fcn)(void); /* Function pointer (not used). */ 73 } a_un; 74} Elf32_Auxinfo; 75 76typedef struct { /* Auxiliary vector entry on initial stack */ 77 long a_type; /* Entry type. */ 78 union { 79 long a_val; /* Integer value. */ 80 void *a_ptr; /* Address. */ 81 void (*a_fcn)(void); /* Function pointer (not used). */ 82 } a_un; 83} Elf64_Auxinfo; 84 85__ElfType(Auxinfo); 86 87/* Values for a_type. */ 88#define AT_NULL 0 /* Terminates the vector. */ 89#define AT_IGNORE 1 /* Ignored entry. */ 90#define AT_EXECFD 2 /* File descriptor of program to load. */ 91#define AT_PHDR 3 /* Program header of program already loaded. */ 92#define AT_PHENT 4 /* Size of each program header entry. */ 93#define AT_PHNUM 5 /* Number of program header entries. */ 94#define AT_PAGESZ 6 /* Page size in bytes. */ 95#define AT_BASE 7 /* Interpreter's base address. */ 96#define AT_FLAGS 8 /* Flags (unused for PowerPC). */ 97#define AT_ENTRY 9 /* Where interpreter should transfer control. */ 98#define AT_DCACHEBSIZE 10 /* Data cache block size for the processor. */ 99#define AT_ICACHEBSIZE 11 /* Instruction cache block size for the uP. */ 100#define AT_UCACHEBSIZE 12 /* Cache block size, or `0' if cache not unified. */ 101#define AT_EXECPATH 13 /* Path to the executable. */ 102#define AT_CANARY 14 /* Canary for SSP */ 103#define AT_CANARYLEN 15 /* Length of the canary. */ 104#define AT_OSRELDATE 16 /* OSRELDATE. */ 105#define AT_NCPUS 17 /* Number of CPUs. */ 106#define AT_PAGESIZES 18 /* Pagesizes. */ 107#define AT_PAGESIZESLEN 19 /* Number of pagesizes. */ 108#define AT_STACKPROT 21 /* Initial stack protection. */ 109#define AT_TIMEKEEP 22 /* Pointer to timehands. */ 110 111#define AT_COUNT 23 /* Count of defined aux entry types. */ 112 113/* 114 * Relocation types. 115 */ 116 117#define R_PPC_COUNT 37 /* Count of defined relocation types. */ 118 119 /* Count of defined relocation types. */ 120#define R_PPC_EMB_COUNT (R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1) 121 122/* Define "machine" characteristics */ 123#if __ELF_WORD_SIZE == 64 124#define ELF_TARG_CLASS ELFCLASS64 125#define ELF_TARG_DATA ELFDATA2MSB 126#define ELF_TARG_MACH EM_PPC64 127#define ELF_TARG_VER 1 128#else 129#define ELF_TARG_CLASS ELFCLASS32 130#define ELF_TARG_DATA ELFDATA2MSB 131#define ELF_TARG_MACH EM_PPC 132#define ELF_TARG_VER 1 133#endif 134 135#define ET_DYN_LOAD_ADDR 0x01010000 136 137#endif /* !_MACHINE_ELF_H_ */ 138