1 /* $OpenBSD: exec.h,v 1.9 2017/08/13 14:56:09 visa Exp $ */ 2 3 /* 4 * Copyright (c) 1996-2004 Per Fogelstrom, Opsycon AB 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 ``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 67 #define DT_PROCNUM (DT_MIPS_RLD_MAP - DT_LOPROC + 1) 68 69 /* 70 * Legal values for e_flags field of Elf32_Ehdr. 71 */ 72 #define EF_MIPS_NOREORDER 0x00000001 /* .noreorder was used */ 73 #define EF_MIPS_PIC 0x00000002 /* Contains PIC code */ 74 #define EF_MIPS_CPIC 0x00000004 /* Uses PIC calling sequence */ 75 #define EF_MIPS_ABI2 0x00000020 /* -n32 on Irix 6 */ 76 #define EF_MIPS_32BITMODE 0x00000100 /* 64 bit in 32 bit mode... */ 77 #define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */ 78 #define E_MIPS_ARCH_1 0x00000000 79 #define E_MIPS_ARCH_2 0x10000000 80 #define E_MIPS_ARCH_3 0x20000000 81 #define E_MIPS_ARCH_4 0x30000000 82 #define EF_MIPS_ABI 0x0000f000 /* ABI level */ 83 #define E_MIPS_ABI_NONE 0x00000000 /* ABI level not set */ 84 #define E_MIPS_ABI_O32 0x00001000 85 #define E_MIPS_ABI_O64 0x00002000 86 #define E_MIPS_ABI_EABI32 0x00004000 87 #define E_MIPS_ABI_EABI64 0x00004000 88 89 /* 90 * Mips special sections. 91 */ 92 #define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */ 93 #define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */ 94 #define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */ 95 96 /* 97 * Legal values for sh_type field of Elf32_Shdr. 98 */ 99 #define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */ 100 #define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */ 101 #define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */ 102 #define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */ 103 #define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information */ 104 #define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */ 105 106 /* 107 * Legal values for sh_flags field of Elf32_Shdr. 108 */ 109 #define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */ 110 111 #if 0 112 /* 113 * Entries found in sections of type SHT_MIPS_GPTAB. 114 */ 115 typedef union { 116 struct { 117 Elf32_Word gt_current_g_value; /* -G val used in compilation */ 118 Elf32_Word gt_unused; /* Not used */ 119 } gt_header; /* First entry in section */ 120 struct { 121 Elf32_Word gt_g_value; /* If this val were used for -G */ 122 Elf32_Word gt_bytes; /* This many bytes would be used */ 123 } gt_entry; /* Subsequent entries in section */ 124 } Elf32_gptab; 125 126 /* 127 * Entry found in sections of type SHT_MIPS_REGINFO. 128 */ 129 typedef struct { 130 Elf32_Word ri_gprmask; /* General registers used */ 131 Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */ 132 Elf32_Sword ri_gp_value; /* $gp register value */ 133 } Elf32_RegInfo; 134 #endif 135 136 #endif /* !_MIPS64_EXEC_H_ */ 137