1 /* 2 * Copyright (c) 2013 M. Warner Losh. All Rights Reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 /*- 29 * Copyright (c) 2013 The NetBSD Foundation, Inc. 30 * All rights reserved. 31 * 32 * Redistribution and use in source and binary forms, with or without 33 * modification, are permitted provided that the following conditions 34 * are met: 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 2. Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in the 39 * documentation and/or other materials provided with the distribution. 40 * 41 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 42 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 43 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 44 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 45 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 46 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 47 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 48 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 49 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 51 * POSSIBILITY OF SUCH DAMAGE. 52 * 53 * See below starting with the line with $NetBSD...$ for code this applies to. 54 */ 55 56 #ifndef __MIPS_ELF_H 57 #define __MIPS_ELF_H 58 59 /* FreeBSD specific bits - derived from FreeBSD specific files and changes to old elf.h */ 60 61 /* 62 * Define __ELF_WORD_SIZE based on the ABI, if not defined yet. This sets 63 * the proper defaults when we're not trying to do 32-bit on 64-bit systems. 64 * We include both 32 and 64 bit versions so we can support multiple ABIs. 65 */ 66 #ifndef __ELF_WORD_SIZE 67 #if defined(__mips_n64) 68 #define __ELF_WORD_SIZE 64 69 #else 70 #define __ELF_WORD_SIZE 32 71 #endif 72 #endif 73 #include <sys/elf32.h> 74 #include <sys/elf64.h> 75 #include <sys/elf_generic.h> 76 77 #define ELF_ARCH EM_MIPS 78 #define ELF_ARCH32 EM_MIPS 79 80 /* Define "machine" characteristics */ 81 #if __ELF_WORD_SIZE == 32 82 #define ELF_TARG_CLASS ELFCLASS32 83 #else 84 #define ELF_TARG_CLASS ELFCLASS64 85 #endif 86 #ifdef __MIPSEB__ 87 #define ELF_TARG_DATA ELFDATA2MSB 88 #else 89 #define ELF_TARG_DATA ELFDATA2LSB 90 #endif 91 #define ELF_TARG_MACH EM_MIPS 92 #define ELF_TARG_VER 1 93 94 /* 95 * Auxiliary vector entries for passing information to the interpreter. 96 * 97 * The i386 supplement to the SVR4 ABI specification names this "auxv_t", 98 * but POSIX lays claim to all symbols ending with "_t". 99 */ 100 typedef struct { /* Auxiliary vector entry on initial stack */ 101 int a_type; /* Entry type. */ 102 union { 103 int a_val; /* Integer value. */ 104 void *a_ptr; /* Address. */ 105 void (*a_fcn)(void); /* Function pointer (not used). */ 106 } a_un; 107 } Elf32_Auxinfo; 108 109 typedef struct { /* Auxiliary vector entry on initial stack */ 110 long a_type; /* Entry type. */ 111 union { 112 long a_val; /* Integer value. */ 113 void *a_ptr; /* Address. */ 114 void (*a_fcn)(void); /* Function pointer (not used). */ 115 } a_un; 116 } Elf64_Auxinfo; 117 118 __ElfType(Auxinfo); 119 120 /* Values for a_type. */ 121 #define AT_NULL 0 /* Terminates the vector. */ 122 #define AT_IGNORE 1 /* Ignored entry. */ 123 #define AT_EXECFD 2 /* File descriptor of program to load. */ 124 #define AT_PHDR 3 /* Program header of program already loaded. */ 125 #define AT_PHENT 4 /* Size of each program header entry. */ 126 #define AT_PHNUM 5 /* Number of program header entries. */ 127 #define AT_PAGESZ 6 /* Page size in bytes. */ 128 #define AT_BASE 7 /* Interpreter's base address. */ 129 #define AT_FLAGS 8 /* Flags (unused for i386). */ 130 #define AT_ENTRY 9 /* Where interpreter should transfer control. */ 131 #define AT_NOTELF 10 /* Program is not ELF ?? */ 132 #define AT_UID 11 /* Real uid. */ 133 #define AT_EUID 12 /* Effective uid. */ 134 #define AT_GID 13 /* Real gid. */ 135 #define AT_EGID 14 /* Effective gid. */ 136 #define AT_EXECPATH 15 /* Path to the executable. */ 137 #define AT_CANARY 16 /* Canary for SSP */ 138 #define AT_CANARYLEN 17 /* Length of the canary. */ 139 #define AT_OSRELDATE 18 /* OSRELDATE. */ 140 #define AT_NCPUS 19 /* Number of CPUs. */ 141 #define AT_PAGESIZES 20 /* Pagesizes. */ 142 #define AT_PAGESIZESLEN 21 /* Number of pagesizes. */ 143 #define AT_TIMEKEEP 22 /* Pointer to timehands. */ 144 #define AT_STACKPROT 23 /* Initial stack protection. */ 145 146 #define AT_COUNT 24 /* Count of defined aux entry types. */ 147 148 #define ET_DYN_LOAD_ADDR 0x0120000 149 150 /* 151 * Constant to mark start of symtab/strtab saved by trampoline 152 */ 153 #define SYMTAB_MAGIC 0x64656267 154 155 /* from NetBSD's sys/mips/include/elf_machdep.h $NetBSD: elf_machdep.h,v 1.18 2013/05/23 21:39:49 christos Exp $ */ 156 157 /* mips relocs. */ 158 159 #define R_MIPS_NONE 0 160 #define R_MIPS_16 1 161 #define R_MIPS_32 2 162 #define R_MIPS_REL32 3 163 #define R_MIPS_REL R_MIPS_REL32 164 #define R_MIPS_26 4 165 #define R_MIPS_HI16 5 /* high 16 bits of symbol value */ 166 #define R_MIPS_LO16 6 /* low 16 bits of symbol value */ 167 #define R_MIPS_GPREL16 7 /* GP-relative reference */ 168 #define R_MIPS_LITERAL 8 /* Reference to literal section */ 169 #define R_MIPS_GOT16 9 /* Reference to global offset table */ 170 #define R_MIPS_GOT R_MIPS_GOT16 171 #define R_MIPS_PC16 10 /* 16 bit PC relative reference */ 172 #define R_MIPS_CALL16 11 /* 16 bit call thru glbl offset tbl */ 173 #define R_MIPS_CALL R_MIPS_CALL16 174 #define R_MIPS_GPREL32 12 175 176 /* 13, 14, 15 are not defined at this point. */ 177 #define R_MIPS_UNUSED1 13 178 #define R_MIPS_UNUSED2 14 179 #define R_MIPS_UNUSED3 15 180 181 /* 182 * The remaining relocs are apparently part of the 64-bit Irix ELF ABI. 183 */ 184 #define R_MIPS_SHIFT5 16 185 #define R_MIPS_SHIFT6 17 186 187 #define R_MIPS_64 18 188 #define R_MIPS_GOT_DISP 19 189 #define R_MIPS_GOT_PAGE 20 190 #define R_MIPS_GOT_OFST 21 191 #define R_MIPS_GOT_HI16 22 192 #define R_MIPS_GOT_LO16 23 193 #define R_MIPS_SUB 24 194 #define R_MIPS_INSERT_A 25 195 #define R_MIPS_INSERT_B 26 196 #define R_MIPS_DELETE 27 197 #define R_MIPS_HIGHER 28 198 #define R_MIPS_HIGHEST 29 199 #define R_MIPS_CALL_HI16 30 200 #define R_MIPS_CALL_LO16 31 201 #define R_MIPS_SCN_DISP 32 202 #define R_MIPS_REL16 33 203 #define R_MIPS_ADD_IMMEDIATE 34 204 #define R_MIPS_PJUMP 35 205 #define R_MIPS_RELGOT 36 206 #define R_MIPS_JALR 37 207 /* TLS relocations */ 208 209 #define R_MIPS_TLS_DTPMOD32 38 /* Module number 32 bit */ 210 #define R_MIPS_TLS_DTPREL32 39 /* Module-relative offset 32 bit */ 211 #define R_MIPS_TLS_DTPMOD64 40 /* Module number 64 bit */ 212 #define R_MIPS_TLS_DTPREL64 41 /* Module-relative offset 64 bit */ 213 #define R_MIPS_TLS_GD 42 /* 16 bit GOT offset for GD */ 214 #define R_MIPS_TLS_LDM 43 /* 16 bit GOT offset for LDM */ 215 #define R_MIPS_TLS_DTPREL_HI16 44 /* Module-relative offset, high 16 bits */ 216 #define R_MIPS_TLS_DTPREL_LO16 45 /* Module-relative offset, low 16 bits */ 217 #define R_MIPS_TLS_GOTTPREL 46 /* 16 bit GOT offset for IE */ 218 #define R_MIPS_TLS_TPREL32 47 /* TP-relative offset, 32 bit */ 219 #define R_MIPS_TLS_TPREL64 48 /* TP-relative offset, 64 bit */ 220 #define R_MIPS_TLS_TPREL_HI16 49 /* TP-relative offset, high 16 bits */ 221 #define R_MIPS_TLS_TPREL_LO16 50 /* TP-relative offset, low 16 bits */ 222 223 #define R_MIPS_max 51 224 225 #define R_TYPE(name) __CONCAT(R_MIPS_,name) 226 227 #define R_MIPS16_min 100 228 #define R_MIPS16_26 100 229 #define R_MIPS16_GPREL 101 230 #define R_MIPS16_GOT16 102 231 #define R_MIPS16_CALL16 103 232 #define R_MIPS16_HI16 104 233 #define R_MIPS16_LO16 105 234 #define R_MIPS16_max 106 235 236 #define R_MIPS_COPY 126 237 #define R_MIPS_JUMP_SLOT 127 238 239 /* mips dynamic tags */ 240 241 #define DT_MIPS_RLD_VERSION 0x70000001 242 #define DT_MIPS_TIME_STAMP 0x70000002 243 #define DT_MIPS_ICHECKSUM 0x70000003 244 #define DT_MIPS_IVERSION 0x70000004 245 #define DT_MIPS_FLAGS 0x70000005 246 #define DT_MIPS_BASE_ADDRESS 0x70000006 247 #define DT_MIPS_CONFLICT 0x70000008 248 #define DT_MIPS_LIBLIST 0x70000009 249 #define DT_MIPS_CONFLICTNO 0x7000000b 250 #define DT_MIPS_LOCAL_GOTNO 0x7000000a /* number of local got ents */ 251 #define DT_MIPS_LIBLISTNO 0x70000010 252 #define DT_MIPS_SYMTABNO 0x70000011 /* number of .dynsym entries */ 253 #define DT_MIPS_UNREFEXTNO 0x70000012 254 #define DT_MIPS_GOTSYM 0x70000013 /* first dynamic sym in got */ 255 #define DT_MIPS_HIPAGENO 0x70000014 256 #define DT_MIPS_RLD_MAP 0x70000016 /* address of loader map */ 257 #define DT_MIPS_PLTGOT 0x70000032 258 #define DT_MIPS_RWPLT 0x70000034 259 260 /* 261 * ELF Flags 262 */ 263 #define EF_MIPS_PIC 0x00000002 /* Contains PIC code */ 264 #define EF_MIPS_CPIC 0x00000004 /* STD PIC calling sequence */ 265 #define EF_MIPS_ABI2 0x00000020 /* N32 */ 266 267 #define EF_MIPS_ARCH_ASE 0x0f000000 /* Architectural extensions */ 268 #define EF_MIPS_ARCH_MDMX 0x08000000 /* MDMX multimedia extension */ 269 #define EF_MIPS_ARCH_M16 0x04000000 /* MIPS-16 ISA extensions */ 270 271 #define EF_MIPS_ARCH 0xf0000000 /* Architecture field */ 272 #define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code */ 273 #define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code */ 274 #define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code */ 275 #define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code */ 276 #define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code */ 277 #define EF_MIPS_ARCH_32 0x50000000 /* -mips32 code */ 278 #define EF_MIPS_ARCH_64 0x60000000 /* -mips64 code */ 279 #define EF_MIPS_ARCH_32R2 0x70000000 /* -mips32r2 code */ 280 #define EF_MIPS_ARCH_64R2 0x80000000 /* -mips64r2 code */ 281 282 #define EF_MIPS_ABI 0x0000f000 283 #define EF_MIPS_ABI_O32 0x00001000 284 #define EF_MIPS_ABI_O64 0x00002000 285 #define EF_MIPS_ABI_EABI32 0x00003000 286 #define EF_MIPS_ABI_EABI64 0x00004000 287 288 #endif /* __MIPS_ELF_H */ 289