290 lines
11 KiB
C
290 lines
11 KiB
C
/* $OpenBSD: elf_abi.h,v 1.1 1998/01/28 11:14:41 pefo Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1996 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.
|
|
*
|
|
* JNPR: elf.h,v 1.4 2006/12/02 09:53:40 katta
|
|
* $FreeBSD$
|
|
*
|
|
*/
|
|
|
|
#ifndef _MACHINE_ELF_H_
|
|
#define _MACHINE_ELF_H_
|
|
|
|
/* Information taken from MIPS ABI supplemental */
|
|
|
|
#ifndef __ELF_WORD_SIZE
|
|
#if defined(__mips_n64)
|
|
#define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */
|
|
#else
|
|
#define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
|
|
#endif
|
|
#endif
|
|
#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
|
|
#include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */
|
|
#include <sys/elf_generic.h>
|
|
|
|
#define ELF_ARCH EM_MIPS
|
|
#define ELF_MACHINE_OK(x) ((x) == EM_MIPS || (x) == EM_MIPS_RS4_BE)
|
|
|
|
/* 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 1 /* .noreorder was used */
|
|
#define EF_MIPS_PIC 2 /* Contains PIC code */
|
|
#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */
|
|
#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */
|
|
|
|
/*
|
|
* 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 */
|
|
|
|
/*
|
|
* 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;
|
|
typedef union {
|
|
struct {
|
|
Elf64_Word gt_current_g_value; /* -G val used in compilation */
|
|
Elf64_Word gt_unused; /* Not used */
|
|
} gt_header; /* First entry in section */
|
|
struct {
|
|
Elf64_Word gt_g_value; /* If this val were used for -G */
|
|
Elf64_Word gt_bytes; /* This many bytes would be used */
|
|
} gt_entry; /* Subsequent entries in section */
|
|
} Elf64_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;
|
|
typedef struct {
|
|
Elf64_Word ri_gprmask; /* General registers used */
|
|
Elf64_Word ri_cprmask[4]; /* Coprocessor registers used */
|
|
Elf64_Sword ri_gp_value; /* $gp register value */
|
|
} Elf64_RegInfo;
|
|
|
|
|
|
/*
|
|
* 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 */
|
|
#define R_MIPS_GOTHI16 21 /* GOT HI 16 bit */
|
|
#define R_MIPS_GOTLO16 22 /* GOT LO 16 bit */
|
|
#define R_MIPS_CALLHI16 30 /* upper 16 bit GOT entry for function */
|
|
#define R_MIPS_CALLLO16 31 /* lower 16 bit GOT entry for function */
|
|
|
|
/*
|
|
* These are from the 64-bit Irix ELF ABI
|
|
*/
|
|
#define R_MIPS_SHIFT5 16
|
|
#define R_MIPS_SHIFT6 17
|
|
#define R_MIPS_64 18
|
|
#define R_MIPS_GOT_DISP 19
|
|
#define R_MIPS_GOT_PAGE 20
|
|
#define R_MIPS_GOT_OFST 21
|
|
#define R_MIPS_GOT_HI16 22
|
|
#define R_MIPS_GOT_LO16 23
|
|
#define R_MIPS_SUB 24
|
|
#define R_MIPS_INSERT_A 25
|
|
#define R_MIPS_INSERT_B 26
|
|
#define R_MIPS_DELETE 27
|
|
#define R_MIPS_HIGHER 28
|
|
#define R_MIPS_HIGHEST 29
|
|
#define R_MIPS_SCN_DISP 32
|
|
#define R_MIPS_REL16 33
|
|
#define R_MIPS_ADD_IMMEDIATE 34
|
|
#define R_MIPS_PJUMP 35
|
|
#define R_MIPS_RELGOT 36
|
|
#define R_MIPS_JALR 37
|
|
|
|
/*
|
|
* TLS relocations
|
|
*/
|
|
#define R_MIPS_TLS_DTPMOD32 38 /* Module number 32 bit */
|
|
#define R_MIPS_TLS_DTPREL32 39 /* Module-relative offset 32 bit */
|
|
#define R_MIPS_TLS_DTPMOD64 40 /* Module number 64 bit */
|
|
#define R_MIPS_TLS_DTPREL64 41 /* Module-relative offset 64 bit */
|
|
#define R_MIPS_TLS_GD 42 /* 16 bit GOT offset for GD */
|
|
#define R_MIPS_TLS_LDM 43 /* 16 bit GOT offset for LDM */
|
|
#define R_MIPS_TLS_DTPREL_HI16 44 /* Module-relative offset, high 16 bits */
|
|
#define R_MIPS_TLS_DTPREL_LO16 45 /* Module-relative offset, low 16 bits */
|
|
#define R_MIPS_TLS_GOTTPREL 46 /* 16 bit GOT offset for IE */
|
|
#define R_MIPS_TLS_TPREL32 47 /* TP-relative offset, 32 bit */
|
|
#define R_MIPS_TLS_TPREL64 48 /* TP-relative offset, 64 bit */
|
|
#define R_MIPS_TLS_TPREL_HI16 49 /* TP-relative offset, high 16 bits */
|
|
#define R_MIPS_TLS_TPREL_LO16 50 /* TP-relative offset, low 16 bits */
|
|
|
|
#define R_MIPS_max 51
|
|
#define R_TYPE(name) __CONCAT(R_MIPS_,name)
|
|
|
|
/* Define "machine" characteristics */
|
|
#if __ELF_WORD_SIZE == 32
|
|
#define ELF_TARG_CLASS ELFCLASS32
|
|
#else
|
|
#define ELF_TARG_CLASS ELFCLASS64
|
|
#endif
|
|
#ifdef __MIPSEB__
|
|
#define ELF_TARG_DATA ELFDATA2MSB
|
|
#else
|
|
#define ELF_TARG_DATA ELFDATA2LSB
|
|
#endif
|
|
#define ELF_TARG_MACH EM_MIPS
|
|
#define ELF_TARG_VER 1
|
|
|
|
/*
|
|
* Auxiliary vector entries for passing information to the interpreter.
|
|
*
|
|
* The i386 supplement to the SVR4 ABI specification names this "auxv_t",
|
|
* but POSIX lays claim to all symbols ending with "_t".
|
|
*/
|
|
typedef struct { /* Auxiliary vector entry on initial stack */
|
|
int a_type; /* Entry type. */
|
|
union {
|
|
int a_val; /* Integer value. */
|
|
void *a_ptr; /* Address. */
|
|
void (*a_fcn)(void); /* Function pointer (not used). */
|
|
} a_un;
|
|
} Elf32_Auxinfo;
|
|
|
|
typedef struct { /* Auxiliary vector entry on initial stack */
|
|
long a_type; /* Entry type. */
|
|
union {
|
|
long a_val; /* Integer value. */
|
|
void *a_ptr; /* Address. */
|
|
void (*a_fcn)(void); /* Function pointer (not used). */
|
|
} a_un;
|
|
} Elf64_Auxinfo;
|
|
|
|
__ElfType(Auxinfo);
|
|
|
|
/* Values for a_type. */
|
|
#define AT_NULL 0 /* Terminates the vector. */
|
|
#define AT_IGNORE 1 /* Ignored entry. */
|
|
#define AT_EXECFD 2 /* File descriptor of program to load. */
|
|
#define AT_PHDR 3 /* Program header of program already loaded. */
|
|
#define AT_PHENT 4 /* Size of each program header entry. */
|
|
#define AT_PHNUM 5 /* Number of program header entries. */
|
|
#define AT_PAGESZ 6 /* Page size in bytes. */
|
|
#define AT_BASE 7 /* Interpreter's base address. */
|
|
#define AT_FLAGS 8 /* Flags (unused for i386). */
|
|
#define AT_ENTRY 9 /* Where interpreter should transfer control. */
|
|
#define AT_NOTELF 10 /* Program is not ELF ?? */
|
|
#define AT_UID 11 /* Real uid. */
|
|
#define AT_EUID 12 /* Effective uid. */
|
|
#define AT_GID 13 /* Real gid. */
|
|
#define AT_EGID 14 /* Effective gid. */
|
|
#define AT_EXECPATH 15 /* Path to the executable. */
|
|
#define AT_CANARY 16 /* Canary for SSP */
|
|
#define AT_CANARYLEN 17 /* Length of the canary. */
|
|
#define AT_OSRELDATE 18 /* OSRELDATE. */
|
|
#define AT_NCPUS 19 /* Number of CPUs. */
|
|
#define AT_PAGESIZES 20 /* Pagesizes. */
|
|
#define AT_PAGESIZESLEN 21 /* Number of pagesizes. */
|
|
#define AT_STACKPROT 23 /* Initial stack protection. */
|
|
|
|
#define AT_COUNT 24 /* Count of defined aux entry types. */
|
|
|
|
#define ET_DYN_LOAD_ADDR 0x0120000
|
|
|
|
/*
|
|
* Constant to mark start of symtab/strtab saved by trampoline
|
|
*/
|
|
#define SYMTAB_MAGIC 0x64656267
|
|
|
|
#endif /* !_MACHINE_ELF_H_ */
|