[linux-2.6-block.git] / arch / mips / include / asm / elf.h

/*
 * 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 defined(__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)						\
do {									\
	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)						\
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 (current->personality != PER_LINUX32)			\
		set_personality(PER_LINUX);				\
} while (0)

#endif /* CONFIG_64BIT */

struct pt_regs;
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 *);

#ifndef ELF_CORE_COPY_REGS
#define ELF_CORE_COPY_REGS(elf_regs, regs)			\
	elf_dump_regs((elf_greg_t *)&(elf_regs), regs);
#endif
#ifndef ELF_CORE_COPY_TASK_REGS
#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
#endif
#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs)			\
	dump_task_fpu(tsk, elf_fpregs)

#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.
 */

#define ELF_PLATFORM  __elf_platform
extern const char *__elf_platform;

/*
 * 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

#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
struct linux_binprm;
extern int arch_setup_additional_pages(struct linux_binprm *bprm,
				       int uses_interp);
#endif /* _ASM_ELF_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* This file is subject to the terms and conditions of the GNU General Public
	3	* License. See the file "COPYING" in the main directory of this archive
	4	* for more details.
f039b5d3 RB	5	*
f039b5d3 RB	6	* Much of this is taken from binutils and GNU libc ...
1da177e4 LT	7	*/
	8	#ifndef _ASM_ELF_H
	9	#define _ASM_ELF_H
	10
1da177e4 LT	11
	12	/* ELF header e_flags defines. */
	13	/* MIPS architecture level. */
	14	#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
	15	#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
	16	#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
	17	#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
	18	#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
	19	#define EF_MIPS_ARCH_32 0x50000000 /* MIPS32 code. */
	20	#define EF_MIPS_ARCH_64 0x60000000 /* MIPS64 code. */
97fb5de1 RB	21	#define EF_MIPS_ARCH_32R2 0x70000000 /* MIPS32 R2 code. */
97fb5de1 RB	22	#define EF_MIPS_ARCH_64R2 0x80000000 /* MIPS64 R2 code. */
1da177e4 LT	23
	24	/* The ABI of a file. */
	25	#define EF_MIPS_ABI_O32 0x00001000 /* O32 ABI. */
	26	#define EF_MIPS_ABI_O64 0x00002000 /* O32 extended for 64 bit. */
	27
	28	#define PT_MIPS_REGINFO 0x70000000
	29	#define PT_MIPS_RTPROC 0x70000001
	30	#define PT_MIPS_OPTIONS 0x70000002
	31
	32	/* Flags in the e_flags field of the header */
	33	#define EF_MIPS_NOREORDER 0x00000001
	34	#define EF_MIPS_PIC 0x00000002
	35	#define EF_MIPS_CPIC 0x00000004
	36	#define EF_MIPS_ABI2 0x00000020
	37	#define EF_MIPS_OPTIONS_FIRST 0x00000080
	38	#define EF_MIPS_32BITMODE 0x00000100
	39	#define EF_MIPS_ABI 0x0000f000
	40	#define EF_MIPS_ARCH 0xf0000000
	41
	42	#define DT_MIPS_RLD_VERSION 0x70000001
	43	#define DT_MIPS_TIME_STAMP 0x70000002
	44	#define DT_MIPS_ICHECKSUM 0x70000003
	45	#define DT_MIPS_IVERSION 0x70000004
	46	#define DT_MIPS_FLAGS 0x70000005
	47	#define RHF_NONE 0x00000000
	48	#define RHF_HARDWAY 0x00000001
	49	#define RHF_NOTPOT 0x00000002
	50	#define RHF_SGI_ONLY 0x00000010
	51	#define DT_MIPS_BASE_ADDRESS 0x70000006
	52	#define DT_MIPS_CONFLICT 0x70000008
	53	#define DT_MIPS_LIBLIST 0x70000009
	54	#define DT_MIPS_LOCAL_GOTNO 0x7000000a
	55	#define DT_MIPS_CONFLICTNO 0x7000000b
	56	#define DT_MIPS_LIBLISTNO 0x70000010
	57	#define DT_MIPS_SYMTABNO 0x70000011
	58	#define DT_MIPS_UNREFEXTNO 0x70000012
	59	#define DT_MIPS_GOTSYM 0x70000013
	60	#define DT_MIPS_HIPAGENO 0x70000014
	61	#define DT_MIPS_RLD_MAP 0x70000016
	62
	63	#define R_MIPS_NONE 0
	64	#define R_MIPS_16 1
	65	#define R_MIPS_32 2
	66	#define R_MIPS_REL32 3
	67	#define R_MIPS_26 4
	68	#define R_MIPS_HI16 5
	69	#define R_MIPS_LO16 6
	70	#define R_MIPS_GPREL16 7
	71	#define R_MIPS_LITERAL 8
	72	#define R_MIPS_GOT16 9
	73	#define R_MIPS_PC16 10
	74	#define R_MIPS_CALL16 11
	75	#define R_MIPS_GPREL32 12
	76	/* The remaining relocs are defined on Irix, although they are not
	77	in the MIPS ELF ABI. */
	78	#define R_MIPS_UNUSED1 13
	79	#define R_MIPS_UNUSED2 14
	80	#define R_MIPS_UNUSED3 15
	81	#define R_MIPS_SHIFT5 16
	82	#define R_MIPS_SHIFT6 17
	83	#define R_MIPS_64 18
	84	#define R_MIPS_GOT_DISP 19
	85	#define R_MIPS_GOT_PAGE 20
	86	#define R_MIPS_GOT_OFST 21
87	/*
88	* The following two relocation types are specified in the MIPS ABI
89	* conformance guide version 1.2 but not yet in the psABI.
90	*/
91	#define R_MIPS_GOTHI16 22
92	#define R_MIPS_GOTLO16 23
93	#define R_MIPS_SUB 24
94	#define R_MIPS_INSERT_A 25
95	#define R_MIPS_INSERT_B 26
96	#define R_MIPS_DELETE 27
97	#define R_MIPS_HIGHER 28
98	#define R_MIPS_HIGHEST 29
99	/*
100	* The following two relocation types are specified in the MIPS ABI
101	* conformance guide version 1.2 but not yet in the psABI.
102	*/
103	#define R_MIPS_CALLHI16 30
104	#define R_MIPS_CALLLO16 31
105	/*
106	* This range is reserved for vendor specific relocations.
107	*/
108	#define R_MIPS_LOVENDOR 100
109	#define R_MIPS_HIVENDOR 127
110
f039b5d3 RB	111	#define SHN_MIPS_ACCOMON 0xff00 /* Allocated common symbols */
	112	#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */
	113	#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */
	114	#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */
	115	#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */
1da177e4 LT	116
	117	#define SHT_MIPS_LIST 0x70000000
	118	#define SHT_MIPS_CONFLICT 0x70000002
	119	#define SHT_MIPS_GPTAB 0x70000003
	120	#define SHT_MIPS_UCODE 0x70000004
84ada9f8 RB	121	#define SHT_MIPS_DEBUG 0x70000005
	122	#define SHT_MIPS_REGINFO 0x70000006
	123	#define SHT_MIPS_PACKAGE 0x70000007
	124	#define SHT_MIPS_PACKSYM 0x70000008
	125	#define SHT_MIPS_RELD 0x70000009
	126	#define SHT_MIPS_IFACE 0x7000000b
	127	#define SHT_MIPS_CONTENT 0x7000000c
	128	#define SHT_MIPS_OPTIONS 0x7000000d
	129	#define SHT_MIPS_SHDR 0x70000010
	130	#define SHT_MIPS_FDESC 0x70000011
	131	#define SHT_MIPS_EXTSYM 0x70000012
	132	#define SHT_MIPS_DENSE 0x70000013
	133	#define SHT_MIPS_PDESC 0x70000014
	134	#define SHT_MIPS_LOCSYM 0x70000015
	135	#define SHT_MIPS_AUXSYM 0x70000016
	136	#define SHT_MIPS_OPTSYM 0x70000017
	137	#define SHT_MIPS_LOCSTR 0x70000018
	138	#define SHT_MIPS_LINE 0x70000019
	139	#define SHT_MIPS_RFDESC 0x7000001a
	140	#define SHT_MIPS_DELTASYM 0x7000001b
	141	#define SHT_MIPS_DELTAINST 0x7000001c
	142	#define SHT_MIPS_DELTACLASS 0x7000001d
	143	#define SHT_MIPS_DWARF 0x7000001e
	144	#define SHT_MIPS_DELTADECL 0x7000001f
	145	#define SHT_MIPS_SYMBOL_LIB 0x70000020
	146	#define SHT_MIPS_EVENTS 0x70000021
	147	#define SHT_MIPS_TRANSLATE 0x70000022
	148	#define SHT_MIPS_PIXIE 0x70000023
	149	#define SHT_MIPS_XLATE 0x70000024
	150	#define SHT_MIPS_XLATE_DEBUG 0x70000025
	151	#define SHT_MIPS_WHIRL 0x70000026
	152	#define SHT_MIPS_EH_REGION 0x70000027
	153	#define SHT_MIPS_XLATE_OLD 0x70000028
	154	#define SHT_MIPS_PDR_EXCEPTION 0x70000029
1da177e4	155
84ada9f8 RB	156	#define SHF_MIPS_GPREL 0x10000000
	157	#define SHF_MIPS_MERGE 0x20000000
	158	#define SHF_MIPS_ADDR 0x40000000
	159	#define SHF_MIPS_STRING 0x80000000
	160	#define SHF_MIPS_NOSTRIP 0x08000000
	161	#define SHF_MIPS_LOCAL 0x04000000
	162	#define SHF_MIPS_NAMES 0x02000000
	163	#define SHF_MIPS_NODUPES 0x01000000
1da177e4 LT	164
	165	#ifndef ELF_ARCH
	166	/* ELF register definitions */
	167	#define ELF_NGREG 45
	168	#define ELF_NFPREG 33
	169
	170	typedef unsigned long elf_greg_t;
	171	typedef elf_greg_t elf_gregset_t[ELF_NGREG];
	172
	173	typedef double elf_fpreg_t;
	174	typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
	175
875d43e7	176	#ifdef CONFIG_32BIT
1da177e4 LT	177
	178	/*
	179	* This is used to ensure we don't load something for the wrong architecture.
	180	*/
	181	#define elf_check_arch(hdr) \
	182	({ \
	183	int __res = 1; \
	184	struct elfhdr *__h = (hdr); \
	185	\
	186	if (__h->e_machine != EM_MIPS) \
	187	__res = 0; \
	188	if (__h->e_ident[EI_CLASS] != ELFCLASS32) \
	189	__res = 0; \
	190	if ((__h->e_flags & EF_MIPS_ABI2) != 0) \
	191	__res = 0; \
	192	if (((__h->e_flags & EF_MIPS_ABI) != 0) && \
	193	((__h->e_flags & EF_MIPS_ABI) != EF_MIPS_ABI_O32)) \
	194	__res = 0; \
	195	\
	196	__res; \
	197	})
	198
	199	/*
	200	* These are used to set parameters in the core dumps.
	201	*/
	202	#define ELF_CLASS ELFCLASS32
	203
875d43e7	204	#endif /* CONFIG_32BIT */
1da177e4	205
875d43e7	206	#ifdef CONFIG_64BIT
1da177e4 LT	207	/*
	208	* This is used to ensure we don't load something for the wrong architecture.
	209	*/
	210	#define elf_check_arch(hdr) \
	211	({ \
	212	int __res = 1; \
	213	struct elfhdr *__h = (hdr); \
	214	\
	215	if (__h->e_machine != EM_MIPS) \
	216	__res = 0; \
	217	if (__h->e_ident[EI_CLASS] != ELFCLASS64) \
	218	__res = 0; \
	219	\
	220	__res; \
	221	})
	222
	223	/*
	224	* These are used to set parameters in the core dumps.
	225	*/
	226	#define ELF_CLASS ELFCLASS64
	227
875d43e7	228	#endif /* CONFIG_64BIT */
1da177e4 LT	229
	230	/*
	231	* These are used to set parameters in the core dumps.
	232	*/
	233	#ifdef __MIPSEB__
	234	#define ELF_DATA ELFDATA2MSB
08d9d1c4	235	#elif defined(__MIPSEL__)
1da177e4 LT	236	#define ELF_DATA ELFDATA2LSB
	237	#endif
	238	#define ELF_ARCH EM_MIPS
	239
	240	#endif /* !defined(ELF_ARCH) */
	241
e50c0a8f RB	242	struct mips_abi;
	243
	244	extern struct mips_abi mips_abi;
	245	extern struct mips_abi mips_abi_32;
	246	extern struct mips_abi mips_abi_n32;
	247
875d43e7	248	#ifdef CONFIG_32BIT
1da177e4	249
0b592682	250	#define SET_PERSONALITY(ex) \
e50c0a8f	251	do { \
e50c0a8f RB	252	set_personality(PER_LINUX); \
	253	\
	254	current->thread.abi = &mips_abi; \
1da177e4 LT	255	} while (0)
1da177e4 LT	256
875d43e7	257	#endif /* CONFIG_32BIT */
1da177e4	258
875d43e7	259	#ifdef CONFIG_64BIT
1da177e4	260
e50c0a8f RB	261	#ifdef CONFIG_MIPS32_N32
	262	#define __SET_PERSONALITY32_N32() \
	263	do { \
293c5bd1	264	set_thread_flag(TIF_32BIT_ADDR); \
e50c0a8f RB	265	current->thread.abi = &mips_abi_n32; \
	266	} while (0)
	267	#else
	268	#define __SET_PERSONALITY32_N32() \
	269	do { } while (0)
	270	#endif
	271
	272	#ifdef CONFIG_MIPS32_O32
	273	#define __SET_PERSONALITY32_O32() \
	274	do { \
293c5bd1 RB	275	set_thread_flag(TIF_32BIT_REGS); \
293c5bd1 RB	276	set_thread_flag(TIF_32BIT_ADDR); \
e50c0a8f RB	277	current->thread.abi = &mips_abi_32; \
	278	} while (0)
	279	#else
	280	#define __SET_PERSONALITY32_O32() \
	281	do { } while (0)
	282	#endif
	283
	284	#ifdef CONFIG_MIPS32_COMPAT
	285	#define __SET_PERSONALITY32(ex) \
	286	do { \
	287	if ((((ex).e_flags & EF_MIPS_ABI2) != 0) && \
	288	((ex).e_flags & EF_MIPS_ABI) == 0) \
	289	__SET_PERSONALITY32_N32(); \
	290	else \
	291	__SET_PERSONALITY32_O32(); \
	292	} while (0)
	293	#else
	294	#define __SET_PERSONALITY32(ex) do { } while (0)
	295	#endif
	296
0b592682	297	#define SET_PERSONALITY(ex) \
e50c0a8f	298	do { \
293c5bd1 RB	299	clear_thread_flag(TIF_32BIT_REGS); \
	300	clear_thread_flag(TIF_32BIT_ADDR); \
	301	\
e50c0a8f RB	302	if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
e50c0a8f RB	303	__SET_PERSONALITY32(ex); \
293c5bd1	304	else \
e50c0a8f	305	current->thread.abi = &mips_abi; \
e50c0a8f	306	\
0b592682	307	if (current->personality != PER_LINUX32) \
e50c0a8f	308	set_personality(PER_LINUX); \
1da177e4 LT	309	} while (0)
1da177e4 LT	310
875d43e7	311	#endif /* CONFIG_64BIT */
1da177e4	312
d5d3102b	313	struct pt_regs;
8c65b4a6 TS	314	struct task_struct;
8c65b4a6 TS	315
d56efda4	316	extern void elf_dump_regs(elf_greg_t , struct pt_regs regs);
49a89efb	317	extern int dump_task_regs(struct task_struct , elf_gregset_t );
1da177e4 LT	318	extern int dump_task_fpu(struct task_struct , elf_fpregset_t );
1da177e4 LT	319
cad9bc69	320	#ifndef ELF_CORE_COPY_REGS
1da177e4	321	#define ELF_CORE_COPY_REGS(elf_regs, regs) \
d56efda4	322	elf_dump_regs((elf_greg_t *)&(elf_regs), regs);
cad9bc69 YZ	323	#endif
cad9bc69 YZ	324	#ifndef ELF_CORE_COPY_TASK_REGS
71e0e556	325	#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
cad9bc69	326	#endif
1da177e4 LT	327	#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) \
	328	dump_task_fpu(tsk, elf_fpregs)
	329
1da177e4 LT	330	#define ELF_EXEC_PAGESIZE PAGE_SIZE
	331
	332	/* This yields a mask that user programs can use to figure out what
	333	instruction set this cpu supports. This could be done in userspace,
	334	but it's not easy, and we've already done it here. */
	335
	336	#define ELF_HWCAP (0)
	337
874fd3b5 DD	338	/*
	339	* This yields a string that ld.so will use to load implementation
	340	* specific libraries for optimization. This is more specific in
	341	* intent than poking at uname or /proc/cpuinfo.
	342	*/
1da177e4	343
874fd3b5 DD	344	#define ELF_PLATFORM __elf_platform
874fd3b5 DD	345	extern const char *__elf_platform;
1da177e4 LT	346
	347	/*
	348	* See comments in asm-alpha/elf.h, this is the same thing
	349	* on the MIPS.
	350	*/
	351	#define ELF_PLAT_INIT(_r, load_addr) do { \
	352	_r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0; \
	353	_r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0; \
	354	_r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0; \
	355	_r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0; \
	356	_r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0; \
	357	_r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0; \
	358	_r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0; \
	359	_r->regs[30] = _r->regs[31] = 0; \
	360	} while (0)
	361
	362	/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
	363	use of this is to invoke "./ld.so someprog" to test out a new version of
	364	the loader. We need to make sure that it is out of the way of the program
	365	that it will "exec", and that there is sufficient room for the brk. */
	366
	367	#ifndef ELF_ET_DYN_BASE
	368	#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
	369	#endif
	370
c52d0d30 DD	371	#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
	372	struct linux_binprm;
	373	extern int arch_setup_additional_pages(struct linux_binprm *bprm,
	374	int uses_interp);
1da177e4	375	#endif /* _ASM_ELF_H */