1144513Simp/* $OpenBSD: exec.h,v 1.10 2022/10/28 15:07:25 kettenis Exp $ */ 2144513Simp 3144513Simp/* 4144513Simp * Copyright (c) 1996-2004 Per Fogelstrom, Opsycon AB 5144513Simp * 6144513Simp * 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 ``AS IS'' AND ANY EXPRESS 16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 19 * 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 */ 28 29#ifndef _MIPS64_EXEC_H_ 30#define _MIPS64_EXEC_H_ 31 32#define __LDPGSZ 16384 33 34#define ARCH_ELFSIZE 64 35#define ELF_TARG_CLASS ELFCLASS64 36 37#if defined(__MIPSEB__) 38#define ELF_TARG_DATA ELFDATA2MSB 39#else 40#define ELF_TARG_DATA ELFDATA2LSB 41#endif 42#define ELF_TARG_MACH EM_MIPS 43 44/* Information taken from MIPS ABI supplement */ 45 46/* Architecture dependent Segment types - p_type */ 47#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */ 48 49/* Architecture dependent d_tag field for Elf32_Dyn. */ 50#define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime Linker Interface ID */ 51#define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */ 52#define DT_MIPS_ICHECKSUM 0x70000003 /* Cksum of ext. str. and com. sizes */ 53#define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */ 54#define DT_MIPS_FLAGS 0x70000005 /* Flags */ 55#define DT_MIPS_BASE_ADDRESS 0x70000006 /* Segment base address */ 56#define DT_MIPS_CONFLICT 0x70000008 /* Adr of .conflict section */ 57#define DT_MIPS_LIBLIST 0x70000009 /* Address of .liblist section */ 58#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local .GOT entries */ 59#define DT_MIPS_CONFLICTNO 0x7000000b /* Number of .conflict entries */ 60#define DT_MIPS_LIBLISTNO 0x70000010 /* Number of .liblist entries */ 61#define DT_MIPS_SYMTABNO 0x70000011 /* Number of .dynsym entries */ 62#define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */ 63#define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in .dynsym */ 64#define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */ 65#define DT_MIPS_RLD_MAP 0x70000016 /* Address of debug map pointer */ 66#define DT_MIPS_RLD_MAP_REL 0x70000035 /* Relative address of debug map ptr */ 67 68#define DT_PROCNUM (DT_MIPS_RLD_MAP_REL - DT_LOPROC + 1) 69 70/* 71 * Legal values for e_flags field of Elf32_Ehdr. 72 */ 73#define EF_MIPS_NOREORDER 0x00000001 /* .noreorder was used */ 74#define EF_MIPS_PIC 0x00000002 /* Contains PIC code */ 75#define EF_MIPS_CPIC 0x00000004 /* Uses PIC calling sequence */ 76#define EF_MIPS_ABI2 0x00000020 /* -n32 on Irix 6 */ 77#define EF_MIPS_32BITMODE 0x00000100 /* 64 bit in 32 bit mode... */ 78#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */ 79#define E_MIPS_ARCH_1 0x00000000 80#define E_MIPS_ARCH_2 0x10000000 81#define E_MIPS_ARCH_3 0x20000000 82#define E_MIPS_ARCH_4 0x30000000 83#define EF_MIPS_ABI 0x0000f000 /* ABI level */ 84#define E_MIPS_ABI_NONE 0x00000000 /* ABI level not set */ 85#define E_MIPS_ABI_O32 0x00001000 86#define E_MIPS_ABI_O64 0x00002000 87#define E_MIPS_ABI_EABI32 0x00004000 88#define E_MIPS_ABI_EABI64 0x00004000 89 90/* 91 * Mips special sections. 92 */ 93#define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */ 94#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */ 95#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */ 96 97/* 98 * Legal values for sh_type field of Elf32_Shdr. 99 */ 100#define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */ 101#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */ 102#define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */ 103#define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */ 104#define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information */ 105#define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */ 106 107/* 108 * Legal values for sh_flags field of Elf32_Shdr. 109 */ 110#define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */ 111 112#if 0 113/* 114 * Entries found in sections of type SHT_MIPS_GPTAB. 115 */ 116typedef union { 117 struct { 118 Elf32_Word gt_current_g_value; /* -G val used in compilation */ 119 Elf32_Word gt_unused; /* Not used */ 120 } gt_header; /* First entry in section */ 121 struct { 122 Elf32_Word gt_g_value; /* If this val were used for -G */ 123 Elf32_Word gt_bytes; /* This many bytes would be used */ 124 } gt_entry; /* Subsequent entries in section */ 125} Elf32_gptab; 126 127/* 128 * Entry found in sections of type SHT_MIPS_REGINFO. 129 */ 130typedef struct { 131 Elf32_Word ri_gprmask; /* General registers used */ 132 Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */ 133 Elf32_Sword ri_gp_value; /* $gp register value */ 134} Elf32_RegInfo; 135#endif 136 137#endif /* !_MIPS64_EXEC_H_ */ 138