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/* $OpenBSD: exec.h,v 1.1 2004/08/06 21:12:19 pefo Exp $ */
/*
* Copyright (c) 1996-2003 Per Fogelstrom
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed under OpenBSD by
* Per Fogelstrom.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _MIPS_EXEC_H_
#define _MIPS_EXEC_H_
#define __LDPGSZ 4096
/*
* Define what exec "formats" we should handle.
*/
#define NATIVE_EXEC_ELF
#define EXEC_SCRIPT
#define ARCH_ELFSIZE 32
#define ELF_TARG_CLASS ELFCLASS32
#if defined(__MIPSEB__)
#define ELF_TARG_DATA ELFDATA2MSB
#else
#define ELF_TARG_DATA ELFDATA2LSB
#endif
#define ELF_TARG_MACH EM_MIPS
#define _NLIST_DO_ELF
#define _NLIST_DO_ECOFF
#define _KERN_DO_ECOFF /* XXX obsolete */
#define _KERN_DO_ELF
#if defined(_LP64)
#define _KERN_DO_ELF64
#endif
/* Information taken from MIPS ABI supplemental */
/* Architecture dependent Segment types - p_type */
#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */
/* Architecture dependent d_tag field for Elf32_Dyn. */
#define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime Linker Interface ID */
#define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */
#define DT_MIPS_ICHECKSUM 0x70000003 /* Cksum of ext. str. and com. sizes */
#define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */
#define DT_MIPS_FLAGS 0x70000005 /* Flags */
#define DT_MIPS_BASE_ADDRESS 0x70000006 /* Segment base address */
#define DT_MIPS_CONFLICT 0x70000008 /* Adr of .conflict section */
#define DT_MIPS_LIBLIST 0x70000009 /* Address of .liblist section */
#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local .GOT entries */
#define DT_MIPS_CONFLICTNO 0x7000000b /* Number of .conflict entries */
#define DT_MIPS_LIBLISTNO 0x70000010 /* Number of .liblist entries */
#define DT_MIPS_SYMTABNO 0x70000011 /* Number of .dynsym entries */
#define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */
#define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in .dynsym */
#define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */
#define DT_MIPS_RLD_MAP 0x70000016 /* Address of debug map pointer */
#define DT_PROCNUM (DT_MIPS_RLD_MAP - DT_LOPROC + 1)
/*
* Legal values for e_flags field of Elf32_Ehdr.
*/
#define EF_MIPS_NOREORDER 0x00000001 /* .noreorder was used */
#define EF_MIPS_PIC 0x00000002 /* Contains PIC code */
#define EF_MIPS_CPIC 0x00000004 /* Uses PIC calling sequence */
#define EF_MIPS_ABI2 0x00000020 /* -n32 on Irix 6 */
#define EF_MIPS_32BITMODE 0x00000100 /* 64 bit in 32 bit mode... */
#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */
#define E_MIPS_ARCH_1 0x00000000
#define E_MIPS_ARCH_2 0x10000000
#define E_MIPS_ARCH_3 0x20000000
#define E_MIPS_ARCH_4 0x30000000
#define EF_MIPS_ABI 0x0000f000 /* ABI level */
#define E_MIPS_ABI_NONE 0x00000000 /* ABI level not set */
#define E_MIPS_ABI_O32 0x00001000
#define E_MIPS_ABI_O64 0x00002000
#define E_MIPS_ABI_EABI32 0x00004000
#define E_MIPS_ABI_EABI64 0x00004000
/*
* Mips special sections.
*/
#define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */
#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */
#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */
/*
* Legal values for sh_type field of Elf32_Shdr.
*/
#define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */
#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */
#define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */
#define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */
#define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information */
#define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */
/*
* Legal values for sh_flags field of Elf32_Shdr.
*/
#define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */
#if 0
/*
* Entries found in sections of type SHT_MIPS_GPTAB.
*/
typedef union {
struct {
Elf32_Word gt_current_g_value; /* -G val used in compilation */
Elf32_Word gt_unused; /* Not used */
} gt_header; /* First entry in section */
struct {
Elf32_Word gt_g_value; /* If this val were used for -G */
Elf32_Word gt_bytes; /* This many bytes would be used */
} gt_entry; /* Subsequent entries in section */
} Elf32_gptab;
/*
* Entry found in sections of type SHT_MIPS_REGINFO.
*/
typedef struct {
Elf32_Word ri_gprmask; /* General registers used */
Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */
Elf32_Sword ri_gp_value; /* $gp register value */
} Elf32_RegInfo;
#endif
/*
* Mips relocations.
*/
#define R_MIPS_NONE 0 /* No reloc */
#define R_MIPS_16 1 /* Direct 16 bit */
#define R_MIPS_32 2 /* Direct 32 bit */
#define R_MIPS_REL32 3 /* PC relative 32 bit */
#define R_MIPS_26 4 /* Direct 26 bit shifted */
#define R_MIPS_HI16 5 /* High 16 bit */
#define R_MIPS_LO16 6 /* Low 16 bit */
#define R_MIPS_GPREL16 7 /* GP relative 16 bit */
#define R_MIPS_LITERAL 8 /* 16 bit literal entry */
#define R_MIPS_GOT16 9 /* 16 bit GOT entry */
#define R_MIPS_PC16 10 /* PC relative 16 bit */
#define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */
#define R_MIPS_GPREL32 12 /* GP relative 32 bit */
#endif /* !_MIPS_EXEC_H_ */
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