1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-2-Clause-NetBSD 3 * 4 * Copyright (c) 2013 M. Warner Losh <[email protected]> 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 /*- 31 * Copyright (c) 2013 The NetBSD Foundation, Inc. 32 * All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 44 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 45 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 46 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 47 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 48 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 49 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 50 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 51 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 52 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 53 * POSSIBILITY OF SUCH DAMAGE. 54 * 55 * See below starting with the line with $NetBSD...$ for code this applies to. 56 */ 57 58 #ifndef __MIPS_ELF_H 59 #define __MIPS_ELF_H 60 61 /* FreeBSD specific bits - derived from FreeBSD specific files and changes to old elf.h */ 62 63 /* 64 * Define __ELF_WORD_SIZE based on the ABI, if not defined yet. This sets 65 * the proper defaults when we're not trying to do 32-bit on 64-bit systems. 66 * We include both 32 and 64 bit versions so we can support multiple ABIs. 67 */ 68 #ifndef __ELF_WORD_SIZE 69 #if defined(__mips_n64) 70 #define __ELF_WORD_SIZE 64 71 #else 72 #define __ELF_WORD_SIZE 32 73 #endif 74 #endif 75 #include <sys/elf32.h> 76 #include <sys/elf64.h> 77 #include <sys/elf_generic.h> 78 79 #define ELF_ARCH EM_MIPS 80 #define ELF_ARCH32 EM_MIPS 81 82 #define ELF_MACHINE_OK(x) ((x) == ELF_ARCH) 83 84 /* Define "machine" characteristics */ 85 #if __ELF_WORD_SIZE == 32 86 #define ELF_TARG_CLASS ELFCLASS32 87 #else 88 #define ELF_TARG_CLASS ELFCLASS64 89 #endif 90 #ifdef __MIPSEB__ 91 #define ELF_TARG_DATA ELFDATA2MSB 92 #else 93 #define ELF_TARG_DATA ELFDATA2LSB 94 #endif 95 #define ELF_TARG_MACH EM_MIPS 96 #define ELF_TARG_VER 1 97 98 /* 99 * Auxiliary vector entries for passing information to the interpreter. 100 * 101 * The i386 supplement to the SVR4 ABI specification names this "auxv_t", 102 * but POSIX lays claim to all symbols ending with "_t". 103 */ 104 typedef struct { /* Auxiliary vector entry on initial stack */ 105 int a_type; /* Entry type. */ 106 union { 107 int a_val; /* Integer value. */ 108 #if defined(__mips_o32) || defined(__mips_n32) 109 void *a_ptr; /* Address. */ 110 void (*a_fcn)(void); /* Function pointer (not used). */ 111 #endif 112 } a_un; 113 } Elf32_Auxinfo; 114 115 typedef struct { /* Auxiliary vector entry on initial stack */ 116 long a_type; /* Entry type. */ 117 union { 118 long a_val; /* Integer value. */ 119 void *a_ptr; /* Address. */ 120 void (*a_fcn)(void); /* Function pointer (not used). */ 121 } a_un; 122 } Elf64_Auxinfo; 123 124 __ElfType(Auxinfo); 125 126 #define ET_DYN_LOAD_ADDR 0x0120000 127 128 /* 129 * Constant to mark start of symtab/strtab saved by trampoline 130 */ 131 #define SYMTAB_MAGIC 0x64656267 132 133 /* from NetBSD's sys/mips/include/elf_machdep.h $NetBSD: elf_machdep.h,v 1.18 2013/05/23 21:39:49 christos Exp $ */ 134 135 /* mips relocs. */ 136 137 #define R_MIPS_NONE 0 138 #define R_MIPS_16 1 139 #define R_MIPS_32 2 140 #define R_MIPS_REL32 3 141 #define R_MIPS_REL R_MIPS_REL32 142 #define R_MIPS_26 4 143 #define R_MIPS_HI16 5 /* high 16 bits of symbol value */ 144 #define R_MIPS_LO16 6 /* low 16 bits of symbol value */ 145 #define R_MIPS_GPREL16 7 /* GP-relative reference */ 146 #define R_MIPS_LITERAL 8 /* Reference to literal section */ 147 #define R_MIPS_GOT16 9 /* Reference to global offset table */ 148 #define R_MIPS_GOT R_MIPS_GOT16 149 #define R_MIPS_PC16 10 /* 16 bit PC relative reference */ 150 #define R_MIPS_CALL16 11 /* 16 bit call thru glbl offset tbl */ 151 #define R_MIPS_CALL R_MIPS_CALL16 152 #define R_MIPS_GPREL32 12 153 154 /* 13, 14, 15 are not defined at this point. */ 155 #define R_MIPS_UNUSED1 13 156 #define R_MIPS_UNUSED2 14 157 #define R_MIPS_UNUSED3 15 158 159 /* 160 * The remaining relocs are apparently part of the 64-bit Irix ELF ABI. 161 */ 162 #define R_MIPS_SHIFT5 16 163 #define R_MIPS_SHIFT6 17 164 165 #define R_MIPS_64 18 166 #define R_MIPS_GOT_DISP 19 167 #define R_MIPS_GOT_PAGE 20 168 #define R_MIPS_GOT_OFST 21 169 #define R_MIPS_GOT_HI16 22 170 #define R_MIPS_GOT_LO16 23 171 #define R_MIPS_SUB 24 172 #define R_MIPS_INSERT_A 25 173 #define R_MIPS_INSERT_B 26 174 #define R_MIPS_DELETE 27 175 #define R_MIPS_HIGHER 28 176 #define R_MIPS_HIGHEST 29 177 #define R_MIPS_CALL_HI16 30 178 #define R_MIPS_CALL_LO16 31 179 #define R_MIPS_SCN_DISP 32 180 #define R_MIPS_REL16 33 181 #define R_MIPS_ADD_IMMEDIATE 34 182 #define R_MIPS_PJUMP 35 183 #define R_MIPS_RELGOT 36 184 #define R_MIPS_JALR 37 185 /* TLS relocations */ 186 187 #define R_MIPS_TLS_DTPMOD32 38 /* Module number 32 bit */ 188 #define R_MIPS_TLS_DTPREL32 39 /* Module-relative offset 32 bit */ 189 #define R_MIPS_TLS_DTPMOD64 40 /* Module number 64 bit */ 190 #define R_MIPS_TLS_DTPREL64 41 /* Module-relative offset 64 bit */ 191 #define R_MIPS_TLS_GD 42 /* 16 bit GOT offset for GD */ 192 #define R_MIPS_TLS_LDM 43 /* 16 bit GOT offset for LDM */ 193 #define R_MIPS_TLS_DTPREL_HI16 44 /* Module-relative offset, high 16 bits */ 194 #define R_MIPS_TLS_DTPREL_LO16 45 /* Module-relative offset, low 16 bits */ 195 #define R_MIPS_TLS_GOTTPREL 46 /* 16 bit GOT offset for IE */ 196 #define R_MIPS_TLS_TPREL32 47 /* TP-relative offset, 32 bit */ 197 #define R_MIPS_TLS_TPREL64 48 /* TP-relative offset, 64 bit */ 198 #define R_MIPS_TLS_TPREL_HI16 49 /* TP-relative offset, high 16 bits */ 199 #define R_MIPS_TLS_TPREL_LO16 50 /* TP-relative offset, low 16 bits */ 200 201 #define R_MIPS_max 51 202 203 #define R_TYPE(name) __CONCAT(R_MIPS_,name) 204 205 #define R_MIPS16_min 100 206 #define R_MIPS16_26 100 207 #define R_MIPS16_GPREL 101 208 #define R_MIPS16_GOT16 102 209 #define R_MIPS16_CALL16 103 210 #define R_MIPS16_HI16 104 211 #define R_MIPS16_LO16 105 212 #define R_MIPS16_max 106 213 214 #define R_MIPS_COPY 126 215 #define R_MIPS_JUMP_SLOT 127 216 217 #endif /* __MIPS_ELF_H */ 218