372 lines
11 KiB
C
372 lines
11 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Much of this is taken from binutils and GNU libc ...
|
|
*/
|
|
#ifndef _ASM_ELF_H
|
|
#define _ASM_ELF_H
|
|
|
|
|
|
/* ELF header e_flags defines. */
|
|
/* MIPS architecture level. */
|
|
#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
|
|
#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
|
|
#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
|
|
#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
|
|
#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
|
|
#define EF_MIPS_ARCH_32 0x50000000 /* MIPS32 code. */
|
|
#define EF_MIPS_ARCH_64 0x60000000 /* MIPS64 code. */
|
|
#define EF_MIPS_ARCH_32R2 0x70000000 /* MIPS32 R2 code. */
|
|
#define EF_MIPS_ARCH_64R2 0x80000000 /* MIPS64 R2 code. */
|
|
|
|
/* The ABI of a file. */
|
|
#define EF_MIPS_ABI_O32 0x00001000 /* O32 ABI. */
|
|
#define EF_MIPS_ABI_O64 0x00002000 /* O32 extended for 64 bit. */
|
|
|
|
#define PT_MIPS_REGINFO 0x70000000
|
|
#define PT_MIPS_RTPROC 0x70000001
|
|
#define PT_MIPS_OPTIONS 0x70000002
|
|
|
|
/* Flags in the e_flags field of the header */
|
|
#define EF_MIPS_NOREORDER 0x00000001
|
|
#define EF_MIPS_PIC 0x00000002
|
|
#define EF_MIPS_CPIC 0x00000004
|
|
#define EF_MIPS_ABI2 0x00000020
|
|
#define EF_MIPS_OPTIONS_FIRST 0x00000080
|
|
#define EF_MIPS_32BITMODE 0x00000100
|
|
#define EF_MIPS_ABI 0x0000f000
|
|
#define EF_MIPS_ARCH 0xf0000000
|
|
|
|
#define DT_MIPS_RLD_VERSION 0x70000001
|
|
#define DT_MIPS_TIME_STAMP 0x70000002
|
|
#define DT_MIPS_ICHECKSUM 0x70000003
|
|
#define DT_MIPS_IVERSION 0x70000004
|
|
#define DT_MIPS_FLAGS 0x70000005
|
|
#define RHF_NONE 0x00000000
|
|
#define RHF_HARDWAY 0x00000001
|
|
#define RHF_NOTPOT 0x00000002
|
|
#define RHF_SGI_ONLY 0x00000010
|
|
#define DT_MIPS_BASE_ADDRESS 0x70000006
|
|
#define DT_MIPS_CONFLICT 0x70000008
|
|
#define DT_MIPS_LIBLIST 0x70000009
|
|
#define DT_MIPS_LOCAL_GOTNO 0x7000000a
|
|
#define DT_MIPS_CONFLICTNO 0x7000000b
|
|
#define DT_MIPS_LIBLISTNO 0x70000010
|
|
#define DT_MIPS_SYMTABNO 0x70000011
|
|
#define DT_MIPS_UNREFEXTNO 0x70000012
|
|
#define DT_MIPS_GOTSYM 0x70000013
|
|
#define DT_MIPS_HIPAGENO 0x70000014
|
|
#define DT_MIPS_RLD_MAP 0x70000016
|
|
|
|
#define R_MIPS_NONE 0
|
|
#define R_MIPS_16 1
|
|
#define R_MIPS_32 2
|
|
#define R_MIPS_REL32 3
|
|
#define R_MIPS_26 4
|
|
#define R_MIPS_HI16 5
|
|
#define R_MIPS_LO16 6
|
|
#define R_MIPS_GPREL16 7
|
|
#define R_MIPS_LITERAL 8
|
|
#define R_MIPS_GOT16 9
|
|
#define R_MIPS_PC16 10
|
|
#define R_MIPS_CALL16 11
|
|
#define R_MIPS_GPREL32 12
|
|
/* The remaining relocs are defined on Irix, although they are not
|
|
in the MIPS ELF ABI. */
|
|
#define R_MIPS_UNUSED1 13
|
|
#define R_MIPS_UNUSED2 14
|
|
#define R_MIPS_UNUSED3 15
|
|
#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
|
|
/*
|
|
* The following two relocation types are specified in the MIPS ABI
|
|
* conformance guide version 1.2 but not yet in the psABI.
|
|
*/
|
|
#define R_MIPS_GOTHI16 22
|
|
#define R_MIPS_GOTLO16 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
|
|
/*
|
|
* The following two relocation types are specified in the MIPS ABI
|
|
* conformance guide version 1.2 but not yet in the psABI.
|
|
*/
|
|
#define R_MIPS_CALLHI16 30
|
|
#define R_MIPS_CALLLO16 31
|
|
/*
|
|
* This range is reserved for vendor specific relocations.
|
|
*/
|
|
#define R_MIPS_LOVENDOR 100
|
|
#define R_MIPS_HIVENDOR 127
|
|
|
|
#define SHN_MIPS_ACCOMON 0xff00 /* Allocated common symbols */
|
|
#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */
|
|
#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */
|
|
#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */
|
|
#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */
|
|
|
|
#define SHT_MIPS_LIST 0x70000000
|
|
#define SHT_MIPS_CONFLICT 0x70000002
|
|
#define SHT_MIPS_GPTAB 0x70000003
|
|
#define SHT_MIPS_UCODE 0x70000004
|
|
#define SHT_MIPS_DEBUG 0x70000005
|
|
#define SHT_MIPS_REGINFO 0x70000006
|
|
#define SHT_MIPS_PACKAGE 0x70000007
|
|
#define SHT_MIPS_PACKSYM 0x70000008
|
|
#define SHT_MIPS_RELD 0x70000009
|
|
#define SHT_MIPS_IFACE 0x7000000b
|
|
#define SHT_MIPS_CONTENT 0x7000000c
|
|
#define SHT_MIPS_OPTIONS 0x7000000d
|
|
#define SHT_MIPS_SHDR 0x70000010
|
|
#define SHT_MIPS_FDESC 0x70000011
|
|
#define SHT_MIPS_EXTSYM 0x70000012
|
|
#define SHT_MIPS_DENSE 0x70000013
|
|
#define SHT_MIPS_PDESC 0x70000014
|
|
#define SHT_MIPS_LOCSYM 0x70000015
|
|
#define SHT_MIPS_AUXSYM 0x70000016
|
|
#define SHT_MIPS_OPTSYM 0x70000017
|
|
#define SHT_MIPS_LOCSTR 0x70000018
|
|
#define SHT_MIPS_LINE 0x70000019
|
|
#define SHT_MIPS_RFDESC 0x7000001a
|
|
#define SHT_MIPS_DELTASYM 0x7000001b
|
|
#define SHT_MIPS_DELTAINST 0x7000001c
|
|
#define SHT_MIPS_DELTACLASS 0x7000001d
|
|
#define SHT_MIPS_DWARF 0x7000001e
|
|
#define SHT_MIPS_DELTADECL 0x7000001f
|
|
#define SHT_MIPS_SYMBOL_LIB 0x70000020
|
|
#define SHT_MIPS_EVENTS 0x70000021
|
|
#define SHT_MIPS_TRANSLATE 0x70000022
|
|
#define SHT_MIPS_PIXIE 0x70000023
|
|
#define SHT_MIPS_XLATE 0x70000024
|
|
#define SHT_MIPS_XLATE_DEBUG 0x70000025
|
|
#define SHT_MIPS_WHIRL 0x70000026
|
|
#define SHT_MIPS_EH_REGION 0x70000027
|
|
#define SHT_MIPS_XLATE_OLD 0x70000028
|
|
#define SHT_MIPS_PDR_EXCEPTION 0x70000029
|
|
|
|
#define SHF_MIPS_GPREL 0x10000000
|
|
#define SHF_MIPS_MERGE 0x20000000
|
|
#define SHF_MIPS_ADDR 0x40000000
|
|
#define SHF_MIPS_STRING 0x80000000
|
|
#define SHF_MIPS_NOSTRIP 0x08000000
|
|
#define SHF_MIPS_LOCAL 0x04000000
|
|
#define SHF_MIPS_NAMES 0x02000000
|
|
#define SHF_MIPS_NODUPES 0x01000000
|
|
|
|
#ifndef ELF_ARCH
|
|
/* ELF register definitions */
|
|
#define ELF_NGREG 45
|
|
#define ELF_NFPREG 33
|
|
|
|
typedef unsigned long elf_greg_t;
|
|
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
|
|
|
|
typedef double elf_fpreg_t;
|
|
typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
|
|
|
|
#ifdef CONFIG_32BIT
|
|
|
|
/*
|
|
* This is used to ensure we don't load something for the wrong architecture.
|
|
*/
|
|
#define elf_check_arch(hdr) \
|
|
({ \
|
|
int __res = 1; \
|
|
struct elfhdr *__h = (hdr); \
|
|
\
|
|
if (__h->e_machine != EM_MIPS) \
|
|
__res = 0; \
|
|
if (__h->e_ident[EI_CLASS] != ELFCLASS32) \
|
|
__res = 0; \
|
|
if ((__h->e_flags & EF_MIPS_ABI2) != 0) \
|
|
__res = 0; \
|
|
if (((__h->e_flags & EF_MIPS_ABI) != 0) && \
|
|
((__h->e_flags & EF_MIPS_ABI) != EF_MIPS_ABI_O32)) \
|
|
__res = 0; \
|
|
\
|
|
__res; \
|
|
})
|
|
|
|
/*
|
|
* These are used to set parameters in the core dumps.
|
|
*/
|
|
#define ELF_CLASS ELFCLASS32
|
|
|
|
#endif /* CONFIG_32BIT */
|
|
|
|
#ifdef CONFIG_64BIT
|
|
/*
|
|
* This is used to ensure we don't load something for the wrong architecture.
|
|
*/
|
|
#define elf_check_arch(hdr) \
|
|
({ \
|
|
int __res = 1; \
|
|
struct elfhdr *__h = (hdr); \
|
|
\
|
|
if (__h->e_machine != EM_MIPS) \
|
|
__res = 0; \
|
|
if (__h->e_ident[EI_CLASS] != ELFCLASS64) \
|
|
__res = 0; \
|
|
\
|
|
__res; \
|
|
})
|
|
|
|
/*
|
|
* These are used to set parameters in the core dumps.
|
|
*/
|
|
#define ELF_CLASS ELFCLASS64
|
|
|
|
#endif /* CONFIG_64BIT */
|
|
|
|
/*
|
|
* These are used to set parameters in the core dumps.
|
|
*/
|
|
#ifdef __MIPSEB__
|
|
#define ELF_DATA ELFDATA2MSB
|
|
#elif __MIPSEL__
|
|
#define ELF_DATA ELFDATA2LSB
|
|
#endif
|
|
#define ELF_ARCH EM_MIPS
|
|
|
|
#endif /* !defined(ELF_ARCH) */
|
|
|
|
struct mips_abi;
|
|
|
|
extern struct mips_abi mips_abi;
|
|
extern struct mips_abi mips_abi_32;
|
|
extern struct mips_abi mips_abi_n32;
|
|
|
|
#ifdef CONFIG_32BIT
|
|
|
|
#define SET_PERSONALITY(ex, ibcs2) \
|
|
do { \
|
|
if (ibcs2) \
|
|
set_personality(PER_SVR4); \
|
|
set_personality(PER_LINUX); \
|
|
\
|
|
current->thread.abi = &mips_abi; \
|
|
} while (0)
|
|
|
|
#endif /* CONFIG_32BIT */
|
|
|
|
#ifdef CONFIG_64BIT
|
|
|
|
#ifdef CONFIG_MIPS32_N32
|
|
#define __SET_PERSONALITY32_N32() \
|
|
do { \
|
|
set_thread_flag(TIF_32BIT_ADDR); \
|
|
current->thread.abi = &mips_abi_n32; \
|
|
} while (0)
|
|
#else
|
|
#define __SET_PERSONALITY32_N32() \
|
|
do { } while (0)
|
|
#endif
|
|
|
|
#ifdef CONFIG_MIPS32_O32
|
|
#define __SET_PERSONALITY32_O32() \
|
|
do { \
|
|
set_thread_flag(TIF_32BIT_REGS); \
|
|
set_thread_flag(TIF_32BIT_ADDR); \
|
|
current->thread.abi = &mips_abi_32; \
|
|
} while (0)
|
|
#else
|
|
#define __SET_PERSONALITY32_O32() \
|
|
do { } while (0)
|
|
#endif
|
|
|
|
#ifdef CONFIG_MIPS32_COMPAT
|
|
#define __SET_PERSONALITY32(ex) \
|
|
do { \
|
|
if ((((ex).e_flags & EF_MIPS_ABI2) != 0) && \
|
|
((ex).e_flags & EF_MIPS_ABI) == 0) \
|
|
__SET_PERSONALITY32_N32(); \
|
|
else \
|
|
__SET_PERSONALITY32_O32(); \
|
|
} while (0)
|
|
#else
|
|
#define __SET_PERSONALITY32(ex) do { } while (0)
|
|
#endif
|
|
|
|
#define SET_PERSONALITY(ex, ibcs2) \
|
|
do { \
|
|
clear_thread_flag(TIF_32BIT_REGS); \
|
|
clear_thread_flag(TIF_32BIT_ADDR); \
|
|
\
|
|
if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
|
|
__SET_PERSONALITY32(ex); \
|
|
else \
|
|
current->thread.abi = &mips_abi; \
|
|
\
|
|
if (ibcs2) \
|
|
set_personality(PER_SVR4); \
|
|
else if (current->personality != PER_LINUX32) \
|
|
set_personality(PER_LINUX); \
|
|
} while (0)
|
|
|
|
#endif /* CONFIG_64BIT */
|
|
|
|
struct task_struct;
|
|
|
|
extern void elf_dump_regs(elf_greg_t *, struct pt_regs *regs);
|
|
extern int dump_task_regs(struct task_struct *, elf_gregset_t *);
|
|
extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *);
|
|
|
|
#define ELF_CORE_COPY_REGS(elf_regs, regs) \
|
|
elf_dump_regs((elf_greg_t *)&(elf_regs), regs);
|
|
#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
|
|
#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) \
|
|
dump_task_fpu(tsk, elf_fpregs)
|
|
|
|
#define USE_ELF_CORE_DUMP
|
|
#define ELF_EXEC_PAGESIZE PAGE_SIZE
|
|
|
|
/* This yields a mask that user programs can use to figure out what
|
|
instruction set this cpu supports. This could be done in userspace,
|
|
but it's not easy, and we've already done it here. */
|
|
|
|
#define ELF_HWCAP (0)
|
|
|
|
/* This yields a string that ld.so will use to load implementation
|
|
specific libraries for optimization. This is more specific in
|
|
intent than poking at uname or /proc/cpuinfo.
|
|
|
|
For the moment, we have only optimizations for the Intel generations,
|
|
but that could change... */
|
|
|
|
#define ELF_PLATFORM (NULL)
|
|
|
|
/*
|
|
* See comments in asm-alpha/elf.h, this is the same thing
|
|
* on the MIPS.
|
|
*/
|
|
#define ELF_PLAT_INIT(_r, load_addr) do { \
|
|
_r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0; \
|
|
_r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0; \
|
|
_r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0; \
|
|
_r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0; \
|
|
_r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0; \
|
|
_r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0; \
|
|
_r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0; \
|
|
_r->regs[30] = _r->regs[31] = 0; \
|
|
} while (0)
|
|
|
|
/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
|
|
use of this is to invoke "./ld.so someprog" to test out a new version of
|
|
the loader. We need to make sure that it is out of the way of the program
|
|
that it will "exec", and that there is sufficient room for the brk. */
|
|
|
|
#ifndef ELF_ET_DYN_BASE
|
|
#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
|
|
#endif
|
|
|
|
#endif /* _ASM_ELF_H */
|