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 * $FreeBSD$ 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 67 typedef 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 76 typedef 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. */ 109 110 #define AT_COUNT 22 /* Count of defined aux entry types. */ 111 112 /* 113 * Relocation types. 114 */ 115 116 #define R_PPC_COUNT 37 /* Count of defined relocation types. */ 117 118 /* Count of defined relocation types. */ 119 #define R_PPC_EMB_COUNT (R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1) 120 121 /* Define "machine" characteristics */ 122 #if __ELF_WORD_SIZE == 64 123 #define ELF_TARG_CLASS ELFCLASS64 124 #define ELF_TARG_DATA ELFDATA2MSB 125 #define ELF_TARG_MACH EM_PPC64 126 #define ELF_TARG_VER 1 127 #else 128 #define ELF_TARG_CLASS ELFCLASS32 129 #define ELF_TARG_DATA ELFDATA2MSB 130 #define ELF_TARG_MACH EM_PPC 131 #define ELF_TARG_VER 1 132 #endif 133 134 #define ET_DYN_LOAD_ADDR 0x01010000 135 136 #endif /* !_MACHINE_ELF_H_ */ 137