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/*
* 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
#include <linux/config.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. */
/* 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 SHF_MIPS_GPREL 0x10000000
#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) */
#ifdef __KERNEL__
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 { \
current->thread.mflags |= MF_N32; \
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 { \
current->thread.mflags |= MF_O32; \
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 { \
current->thread.mflags &= ~MF_ABI_MASK; \
if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
__SET_PERSONALITY32(ex); \
else { \
current->thread.mflags |= MF_N64; \
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 */
extern void 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) \
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)
#endif /* __KERNEL__ */
#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 */
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