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: stable/11/sys/mips/include/elf.h 325810 2017-11-14 16:03:07Z jhb $ 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 ELF_MACHINE_OK(x) ((x) == ELF_ARCH) 81 82/* Define "machine" characteristics */ 83#if __ELF_WORD_SIZE == 32 84#define ELF_TARG_CLASS ELFCLASS32 85#else 86#define ELF_TARG_CLASS ELFCLASS64 87#endif 88#ifdef __MIPSEB__ 89#define ELF_TARG_DATA ELFDATA2MSB 90#else 91#define ELF_TARG_DATA ELFDATA2LSB 92#endif 93#define ELF_TARG_MACH EM_MIPS 94#define ELF_TARG_VER 1 95 96/* 97 * Auxiliary vector entries for passing information to the interpreter. 98 * 99 * The i386 supplement to the SVR4 ABI specification names this "auxv_t", 100 * but POSIX lays claim to all symbols ending with "_t". 101 */ 102typedef struct { /* Auxiliary vector entry on initial stack */ 103 int a_type; /* Entry type. */ 104 union { 105 int a_val; /* Integer value. */ 106 void *a_ptr; /* Address. */ 107 void (*a_fcn)(void); /* Function pointer (not used). */ 108 } a_un; 109} Elf32_Auxinfo; 110 111typedef struct { /* Auxiliary vector entry on initial stack */ 112 long a_type; /* Entry type. */ 113 union { 114 long a_val; /* Integer value. */ 115 void *a_ptr; /* Address. */ 116 void (*a_fcn)(void); /* Function pointer (not used). */ 117 } a_un; 118} Elf64_Auxinfo; 119 120__ElfType(Auxinfo); 121 122/* Values for a_type. */ 123#define AT_NULL 0 /* Terminates the vector. */ 124#define AT_IGNORE 1 /* Ignored entry. */ 125#define AT_EXECFD 2 /* File descriptor of program to load. */ 126#define AT_PHDR 3 /* Program header of program already loaded. */ 127#define AT_PHENT 4 /* Size of each program header entry. */ 128#define AT_PHNUM 5 /* Number of program header entries. */ 129#define AT_PAGESZ 6 /* Page size in bytes. */ 130#define AT_BASE 7 /* Interpreter's base address. */ 131#define AT_FLAGS 8 /* Flags (unused for i386). */ 132#define AT_ENTRY 9 /* Where interpreter should transfer control. */ 133#define AT_NOTELF 10 /* Program is not ELF ?? */ 134#define AT_UID 11 /* Real uid. */ 135#define AT_EUID 12 /* Effective uid. */ 136#define AT_GID 13 /* Real gid. */ 137#define AT_EGID 14 /* Effective gid. */ 138#define AT_EXECPATH 15 /* Path to the executable. */ 139#define AT_CANARY 16 /* Canary for SSP */ 140#define AT_CANARYLEN 17 /* Length of the canary. */ 141#define AT_OSRELDATE 18 /* OSRELDATE. */ 142#define AT_NCPUS 19 /* Number of CPUs. */ 143#define AT_PAGESIZES 20 /* Pagesizes. */ 144#define AT_PAGESIZESLEN 21 /* Number of pagesizes. */ 145#define AT_TIMEKEEP 22 /* Pointer to timehands. */ 146#define AT_STACKPROT 23 /* Initial stack protection. */ 147#define AT_EHDRFLAGS 24 /* e_flags field from elf hdr */ 148#define AT_HWCAP 25 /* CPU feature flags. */ 149#define AT_HWCAP2 26 /* CPU feature flags 2. */ 150 151#define AT_COUNT 27 /* Count of defined aux entry types. */ 152 153#define ET_DYN_LOAD_ADDR 0x0120000 154 155/* 156 * Constant to mark start of symtab/strtab saved by trampoline 157 */ 158#define SYMTAB_MAGIC 0x64656267 159 160/* from NetBSD's sys/mips/include/elf_machdep.h $NetBSD: elf_machdep.h,v 1.18 2013/05/23 21:39:49 christos Exp $ */ 161 162/* mips relocs. */ 163 164#define R_MIPS_NONE 0 165#define R_MIPS_16 1 166#define R_MIPS_32 2 167#define R_MIPS_REL32 3 168#define R_MIPS_REL R_MIPS_REL32 169#define R_MIPS_26 4 170#define R_MIPS_HI16 5 /* high 16 bits of symbol value */ 171#define R_MIPS_LO16 6 /* low 16 bits of symbol value */ 172#define R_MIPS_GPREL16 7 /* GP-relative reference */ 173#define R_MIPS_LITERAL 8 /* Reference to literal section */ 174#define R_MIPS_GOT16 9 /* Reference to global offset table */ 175#define R_MIPS_GOT R_MIPS_GOT16 176#define R_MIPS_PC16 10 /* 16 bit PC relative reference */ 177#define R_MIPS_CALL16 11 /* 16 bit call thru glbl offset tbl */ 178#define R_MIPS_CALL R_MIPS_CALL16 179#define R_MIPS_GPREL32 12 180 181/* 13, 14, 15 are not defined at this point. */ 182#define R_MIPS_UNUSED1 13 183#define R_MIPS_UNUSED2 14 184#define R_MIPS_UNUSED3 15 185 186/* 187 * The remaining relocs are apparently part of the 64-bit Irix ELF ABI. 188 */ 189#define R_MIPS_SHIFT5 16 190#define R_MIPS_SHIFT6 17 191 192#define R_MIPS_64 18 193#define R_MIPS_GOT_DISP 19 194#define R_MIPS_GOT_PAGE 20 195#define R_MIPS_GOT_OFST 21 196#define R_MIPS_GOT_HI16 22 197#define R_MIPS_GOT_LO16 23 198#define R_MIPS_SUB 24 199#define R_MIPS_INSERT_A 25 200#define R_MIPS_INSERT_B 26 201#define R_MIPS_DELETE 27 202#define R_MIPS_HIGHER 28 203#define R_MIPS_HIGHEST 29 204#define R_MIPS_CALL_HI16 30 205#define R_MIPS_CALL_LO16 31 206#define R_MIPS_SCN_DISP 32 207#define R_MIPS_REL16 33 208#define R_MIPS_ADD_IMMEDIATE 34 209#define R_MIPS_PJUMP 35 210#define R_MIPS_RELGOT 36 211#define R_MIPS_JALR 37 212/* TLS relocations */ 213 214#define R_MIPS_TLS_DTPMOD32 38 /* Module number 32 bit */ 215#define R_MIPS_TLS_DTPREL32 39 /* Module-relative offset 32 bit */ 216#define R_MIPS_TLS_DTPMOD64 40 /* Module number 64 bit */ 217#define R_MIPS_TLS_DTPREL64 41 /* Module-relative offset 64 bit */ 218#define R_MIPS_TLS_GD 42 /* 16 bit GOT offset for GD */ 219#define R_MIPS_TLS_LDM 43 /* 16 bit GOT offset for LDM */ 220#define R_MIPS_TLS_DTPREL_HI16 44 /* Module-relative offset, high 16 bits */ 221#define R_MIPS_TLS_DTPREL_LO16 45 /* Module-relative offset, low 16 bits */ 222#define R_MIPS_TLS_GOTTPREL 46 /* 16 bit GOT offset for IE */ 223#define R_MIPS_TLS_TPREL32 47 /* TP-relative offset, 32 bit */ 224#define R_MIPS_TLS_TPREL64 48 /* TP-relative offset, 64 bit */ 225#define R_MIPS_TLS_TPREL_HI16 49 /* TP-relative offset, high 16 bits */ 226#define R_MIPS_TLS_TPREL_LO16 50 /* TP-relative offset, low 16 bits */ 227 228#define R_MIPS_max 51 229 230#define R_TYPE(name) __CONCAT(R_MIPS_,name) 231 232#define R_MIPS16_min 100 233#define R_MIPS16_26 100 234#define R_MIPS16_GPREL 101 235#define R_MIPS16_GOT16 102 236#define R_MIPS16_CALL16 103 237#define R_MIPS16_HI16 104 238#define R_MIPS16_LO16 105 239#define R_MIPS16_max 106 240 241#define R_MIPS_COPY 126 242#define R_MIPS_JUMP_SLOT 127 243 244/* 245 * ELF Flags 246 */ 247 248#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code */ 249#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code */ 250#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code */ 251#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code */ 252#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code */ 253#define EF_MIPS_ARCH_32 0x50000000 /* -mips32 code */ 254#define EF_MIPS_ARCH_64 0x60000000 /* -mips64 code */ 255#define EF_MIPS_ARCH_32R2 0x70000000 /* -mips32r2 code */ 256#define EF_MIPS_ARCH_64R2 0x80000000 /* -mips64r2 code */ 257 258#define EF_MIPS_ABI 0x0000f000 259#define EF_MIPS_ABI_O32 0x00001000 260#define EF_MIPS_ABI_O64 0x00002000 261#define EF_MIPS_ABI_EABI32 0x00003000 262#define EF_MIPS_ABI_EABI64 0x00004000 263 264#endif /* __MIPS_ELF_H */ 265