Annotation of sys/arch/mips64/include/exec.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: exec.h,v 1.1 2004/10/18 19:05:36 grange 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 4096
! 33:
! 34: /*
! 35: * Define what exec "formats" we should handle.
! 36: */
! 37: #define NATIVE_EXEC_ELF
! 38: #define NATIVE_ELFSIZE 64
! 39: #define EXEC_SCRIPT
! 40:
! 41: /*
! 42: * If included from sys/exec.h define kernels ELF format.
! 43: */
! 44: #ifdef __LP64__
! 45: #define ARCH_ELFSIZE 64
! 46: #define DB_ELFSIZE 64
! 47: #define ELF_TARG_CLASS ELFCLASS64
! 48: #else
! 49: #define ARCH_ELFSIZE 32
! 50: #define DB_ELFSIZE 32
! 51: #define ELF_TARG_CLASS ELFCLASS32
! 52: #endif
! 53:
! 54: #if defined(__MIPSEB__)
! 55: #define ELF_TARG_DATA ELFDATA2MSB
! 56: #else
! 57: #define ELF_TARG_DATA ELFDATA2LSB
! 58: #endif
! 59: #define ELF_TARG_MACH EM_MIPS
! 60:
! 61: #define _NLIST_DO_ELF
! 62:
! 63: #if defined(_LP64)
! 64: #define _KERN_DO_ELF64
! 65: #if defined(COMPAT_O32)
! 66: #define _KERN_DO_ELF
! 67: #endif
! 68: #else
! 69: #define _KERN_DO_ELF
! 70: #endif
! 71:
! 72: /* Information taken from MIPS ABI supplemental */
! 73:
! 74: /* Architecture dependent Segment types - p_type */
! 75: #define PT_MIPS_REGINFO 0x70000000 /* Register usage information */
! 76:
! 77: /* Architecture dependent d_tag field for Elf32_Dyn. */
! 78: #define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime Linker Interface ID */
! 79: #define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */
! 80: #define DT_MIPS_ICHECKSUM 0x70000003 /* Cksum of ext. str. and com. sizes */
! 81: #define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */
! 82: #define DT_MIPS_FLAGS 0x70000005 /* Flags */
! 83: #define DT_MIPS_BASE_ADDRESS 0x70000006 /* Segment base address */
! 84: #define DT_MIPS_CONFLICT 0x70000008 /* Adr of .conflict section */
! 85: #define DT_MIPS_LIBLIST 0x70000009 /* Address of .liblist section */
! 86: #define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local .GOT entries */
! 87: #define DT_MIPS_CONFLICTNO 0x7000000b /* Number of .conflict entries */
! 88: #define DT_MIPS_LIBLISTNO 0x70000010 /* Number of .liblist entries */
! 89: #define DT_MIPS_SYMTABNO 0x70000011 /* Number of .dynsym entries */
! 90: #define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */
! 91: #define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in .dynsym */
! 92: #define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */
! 93: #define DT_MIPS_RLD_MAP 0x70000016 /* Address of debug map pointer */
! 94:
! 95: #define DT_PROCNUM (DT_MIPS_RLD_MAP - DT_LOPROC + 1)
! 96:
! 97: /*
! 98: * Legal values for e_flags field of Elf32_Ehdr.
! 99: */
! 100: #define EF_MIPS_NOREORDER 0x00000001 /* .noreorder was used */
! 101: #define EF_MIPS_PIC 0x00000002 /* Contains PIC code */
! 102: #define EF_MIPS_CPIC 0x00000004 /* Uses PIC calling sequence */
! 103: #define EF_MIPS_ABI2 0x00000020 /* -n32 on Irix 6 */
! 104: #define EF_MIPS_32BITMODE 0x00000100 /* 64 bit in 32 bit mode... */
! 105: #define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */
! 106: #define E_MIPS_ARCH_1 0x00000000
! 107: #define E_MIPS_ARCH_2 0x10000000
! 108: #define E_MIPS_ARCH_3 0x20000000
! 109: #define E_MIPS_ARCH_4 0x30000000
! 110: #define EF_MIPS_ABI 0x0000f000 /* ABI level */
! 111: #define E_MIPS_ABI_NONE 0x00000000 /* ABI level not set */
! 112: #define E_MIPS_ABI_O32 0x00001000
! 113: #define E_MIPS_ABI_O64 0x00002000
! 114: #define E_MIPS_ABI_EABI32 0x00004000
! 115: #define E_MIPS_ABI_EABI64 0x00004000
! 116:
! 117: /*
! 118: * Mips special sections.
! 119: */
! 120: #define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */
! 121: #define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */
! 122: #define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */
! 123:
! 124: /*
! 125: * Legal values for sh_type field of Elf32_Shdr.
! 126: */
! 127: #define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */
! 128: #define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */
! 129: #define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */
! 130: #define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */
! 131: #define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information */
! 132: #define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */
! 133:
! 134: /*
! 135: * Legal values for sh_flags field of Elf32_Shdr.
! 136: */
! 137: #define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */
! 138:
! 139: #if 0
! 140: /*
! 141: * Entries found in sections of type SHT_MIPS_GPTAB.
! 142: */
! 143: typedef union {
! 144: struct {
! 145: Elf32_Word gt_current_g_value; /* -G val used in compilation */
! 146: Elf32_Word gt_unused; /* Not used */
! 147: } gt_header; /* First entry in section */
! 148: struct {
! 149: Elf32_Word gt_g_value; /* If this val were used for -G */
! 150: Elf32_Word gt_bytes; /* This many bytes would be used */
! 151: } gt_entry; /* Subsequent entries in section */
! 152: } Elf32_gptab;
! 153:
! 154: /*
! 155: * Entry found in sections of type SHT_MIPS_REGINFO.
! 156: */
! 157: typedef struct {
! 158: Elf32_Word ri_gprmask; /* General registers used */
! 159: Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */
! 160: Elf32_Sword ri_gp_value; /* $gp register value */
! 161: } Elf32_RegInfo;
! 162: #endif
! 163:
! 164:
! 165: /*
! 166: * Mips relocations.
! 167: */
! 168:
! 169: #define R_MIPS_NONE 0 /* No reloc */
! 170: #define R_MIPS_16 1 /* Direct 16 bit */
! 171: #define R_MIPS_32 2 /* Direct 32 bit */
! 172: #define R_MIPS_REL32 3 /* PC relative 32 bit */
! 173: #define R_MIPS_26 4 /* Direct 26 bit shifted */
! 174: #define R_MIPS_HI16 5 /* High 16 bit */
! 175: #define R_MIPS_LO16 6 /* Low 16 bit */
! 176: #define R_MIPS_GPREL16 7 /* GP relative 16 bit */
! 177: #define R_MIPS_LITERAL 8 /* 16 bit literal entry */
! 178: #define R_MIPS_GOT16 9 /* 16 bit GOT entry */
! 179: #define R_MIPS_PC16 10 /* PC relative 16 bit */
! 180: #define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */
! 181: #define R_MIPS_GPREL32 12 /* GP relative 32 bit */
! 182:
! 183: #define R_MIPS_64 18
! 184:
! 185: #define R_MIPS_REL32_64 ((R_MIPS_64 << 8) | R_MIPS_REL32)
! 186:
! 187:
! 188: #endif /* !_MIPS64_EXEC_H_ */
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