1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2001 David E. O'Brien 5 * Copyright (c) 1996-1997 John D. Polstra. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 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 #ifdef __powerpc64__ 71 int a_val; /* Integer value */ 72 #else 73 long a_val; /* Integer value. */ 74 void *a_ptr; /* Address. */ 75 void (*a_fcn)(void); /* Function pointer (not used). */ 76 #endif 77 } a_un; 78 } Elf32_Auxinfo; 79 80 typedef struct { /* Auxiliary vector entry on initial stack */ 81 long a_type; /* Entry type. */ 82 union { 83 long a_val; /* Integer value. */ 84 void *a_ptr; /* Address. */ 85 void (*a_fcn)(void); /* Function pointer (not used). */ 86 } a_un; 87 } Elf64_Auxinfo; 88 89 __ElfType(Auxinfo); 90 91 /* 92 * Relocation types. 93 */ 94 95 #define R_PPC_COUNT 37 /* Count of defined relocation types. */ 96 97 /* Count of defined relocation types. */ 98 #define R_PPC_EMB_COUNT (R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1) 99 100 /* Define "machine" characteristics */ 101 #if BYTE_ORDER == LITTLE_ENDIAN 102 #define ELF_TARG_DATA ELFDATA2LSB 103 #else 104 #define ELF_TARG_DATA ELFDATA2MSB 105 #endif 106 #if __ELF_WORD_SIZE == 64 107 #define ELF_TARG_CLASS ELFCLASS64 108 #define ELF_TARG_MACH EM_PPC64 109 #define ELF_TARG_VER 1 110 #else 111 #define ELF_TARG_CLASS ELFCLASS32 112 #define ELF_TARG_MACH EM_PPC 113 #define ELF_TARG_VER 1 114 #endif 115 116 #define ET_DYN_LOAD_ADDR 0x01010000 117 118 #define AT_OLD_NULL AT_NULL 119 #define AT_OLD_IGNORE AT_IGNORE 120 #define AT_OLD_EXECFD AT_EXECFD 121 #define AT_OLD_PHDR AT_PHDR 122 #define AT_OLD_PHENT AT_PHENT 123 #define AT_OLD_PHNUM AT_PHNUM 124 #define AT_OLD_PAGESZ AT_PAGESZ 125 #define AT_OLD_BASE AT_BASE 126 #define AT_OLD_FLAGS AT_FLAGS 127 #define AT_OLD_ENTRY AT_ENTRY 128 #define AT_OLD_NOTELF AT_NOTELF 129 #define AT_OLD_UID AT_UID 130 #define AT_OLD_EUID AT_EUID 131 #define AT_OLD_EXECPATH 13 132 #define AT_OLD_CANARY 14 133 #define AT_OLD_CANARYLEN 15 134 #define AT_OLD_OSRELDATE 16 135 #define AT_OLD_NCPUS 17 136 #define AT_OLD_PAGESIZES 18 137 #define AT_OLD_PAGESIZESLEN 19 138 #define AT_OLD_STACKPROT 21 139 #define AT_OLD_TIMEKEEP AT_TIMEKEEP 140 #define AT_OLD_EHDRFLAGS AT_EHDRFLAGS 141 #define AT_OLD_HWCAP AT_HWCAP 142 #define AT_OLD_HWCAP2 AT_HWCAP2 143 144 #define AT_OLD_COUNT 27 /* Count of defined aux entry types. */ 145 146 #endif /* !_MACHINE_ELF_H_ */ 147