[deliverable/linux.git] / include / asm-sparc64 / elf.h

/* $Id: elf.h,v 1.32 2002/02/09 19:49:31 davem Exp $ */
#ifndef __ASM_SPARC64_ELF_H
#define __ASM_SPARC64_ELF_H

/*
 * ELF register definitions..
 */

#include <asm/ptrace.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
#include <asm/spitfire.h>

/*
 * Sparc section types
 */
#define STT_REGISTER		13

/*
 * Sparc ELF relocation types
 */
#define	R_SPARC_NONE		0
#define	R_SPARC_8		1
#define	R_SPARC_16		2
#define	R_SPARC_32		3
#define	R_SPARC_DISP8		4
#define	R_SPARC_DISP16		5
#define	R_SPARC_DISP32		6
#define	R_SPARC_WDISP30		7
#define	R_SPARC_WDISP22		8
#define	R_SPARC_HI22		9
#define	R_SPARC_22		10
#define	R_SPARC_13		11
#define	R_SPARC_LO10		12
#define	R_SPARC_GOT10		13
#define	R_SPARC_GOT13		14
#define	R_SPARC_GOT22		15
#define	R_SPARC_PC10		16
#define	R_SPARC_PC22		17
#define	R_SPARC_WPLT30		18
#define	R_SPARC_COPY		19
#define	R_SPARC_GLOB_DAT	20
#define	R_SPARC_JMP_SLOT	21
#define	R_SPARC_RELATIVE	22
#define	R_SPARC_UA32		23
#define R_SPARC_PLT32		24
#define R_SPARC_HIPLT22		25
#define R_SPARC_LOPLT10		26
#define R_SPARC_PCPLT32		27
#define R_SPARC_PCPLT22		28
#define R_SPARC_PCPLT10		29
#define R_SPARC_10		30
#define R_SPARC_11		31
#define R_SPARC_64		32
#define R_SPARC_OLO10		33
#define R_SPARC_WDISP16		40
#define R_SPARC_WDISP19		41
#define R_SPARC_7		43
#define R_SPARC_5		44
#define R_SPARC_6		45

/* Bits present in AT_HWCAP, primarily for Sparc32.  */

#define HWCAP_SPARC_FLUSH       1    /* CPU supports flush instruction. */
#define HWCAP_SPARC_STBAR       2
#define HWCAP_SPARC_SWAP        4
#define HWCAP_SPARC_MULDIV      8
#define HWCAP_SPARC_V9		16
#define HWCAP_SPARC_ULTRA3	32
#define HWCAP_SPARC_BLKINIT	64
#define HWCAP_SPARC_N2		128

/*
 * These are used to set parameters in the core dumps.
 */
#ifndef ELF_ARCH
#define ELF_ARCH		EM_SPARCV9
#define ELF_CLASS		ELFCLASS64
#define ELF_DATA		ELFDATA2MSB

typedef unsigned long elf_greg_t;

#define ELF_NGREG 36
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
/* Format of 64-bit elf_gregset_t is:
 * 	G0 --> G7
 * 	O0 --> O7
 * 	L0 --> L7
 * 	I0 --> I7
 *	TSTATE
 *	TPC
 *	TNPC
 *	Y
 */
#define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs)	\
do {	unsigned long *dest = &(__elf_regs[0]);		\
	struct pt_regs *src = (__pt_regs);		\
	unsigned long __user *sp;			\
	int i;						\
	for(i = 0; i < 16; i++)				\
		dest[i] = src->u_regs[i];		\
	/* Don't try this at home kids... */		\
	sp = (unsigned long __user *)			\
	 ((src->u_regs[14] + STACK_BIAS)		\
	  & 0xfffffffffffffff8UL);			\
	for(i = 0; i < 16; i++)				\
		__get_user(dest[i+16], &sp[i]);		\
	dest[32] = src->tstate;				\
	dest[33] = src->tpc;				\
	dest[34] = src->tnpc;				\
	dest[35] = src->y;				\
} while (0);

typedef struct {
	unsigned long	pr_regs[32];
	unsigned long	pr_fsr;
	unsigned long	pr_gsr;
	unsigned long	pr_fprs;
} elf_fpregset_t;
#endif

#define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs)	\
	({ ELF_CORE_COPY_REGS((*(__elf_regs)), task_pt_regs(__tsk)); 1; })

/*
 * This is used to ensure we don't load something for the wrong architecture.
 */
#ifndef elf_check_arch
#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)	/* Might be EM_SPARCV9 or EM_SPARC */
#endif

#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE	PAGE_SIZE

/* 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         0x0000010000000000UL
#endif


/* This yields a mask that user programs can use to figure out what
   instruction set this cpu supports.  */

/* On Ultra, we support all of the v8 capabilities. */
static inline unsigned int sparc64_elf_hwcap(void)
{
	unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR |
			    HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV |
			    HWCAP_SPARC_V9);

	if (tlb_type == cheetah || tlb_type == cheetah_plus)
		cap |= HWCAP_SPARC_ULTRA3;
	else if (tlb_type == hypervisor) {
		if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 ||
		    sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
			cap |= HWCAP_SPARC_BLKINIT;
		if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
			cap |= HWCAP_SPARC_N2;
	}

	return cap;
}

#define ELF_HWCAP	sparc64_elf_hwcap();

/* 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	(NULL)

#define SET_PERSONALITY(ex, ibcs2)			\
do {	unsigned long new_flags = current_thread_info()->flags; \
	new_flags &= _TIF_32BIT;			\
	if ((ex).e_ident[EI_CLASS] == ELFCLASS32)	\
		new_flags |= _TIF_32BIT;		\
	else						\
		new_flags &= ~_TIF_32BIT;		\
	if ((current_thread_info()->flags & _TIF_32BIT) \
	    != new_flags)				\
		set_thread_flag(TIF_ABI_PENDING);	\
	else						\
		clear_thread_flag(TIF_ABI_PENDING);	\
	/* flush_thread will update pgd cache */	\
	if (ibcs2)					\
		set_personality(PER_SVR4);		\
	else if (current->personality != PER_LINUX32)	\
		set_personality(PER_LINUX);		\
} while (0)

#endif /* !(__ASM_SPARC64_ELF_H) */
Commit	Line	Data
1da177e4 LT	1	/* $Id: elf.h,v 1.32 2002/02/09 19:49:31 davem Exp $ */
	2	#ifndef __ASM_SPARC64_ELF_H
	3	#define __ASM_SPARC64_ELF_H
	4
	5	/*
	6	* ELF register definitions..
	7	*/
	8
	9	#include <asm/ptrace.h>
1da177e4 LT	10	#include <asm/processor.h>
1da177e4 LT	11	#include <asm/uaccess.h>
97532f59	12	#include <asm/spitfire.h>
1da177e4 LT	13
	14	/*
	15	* Sparc section types
	16	*/
	17	#define STT_REGISTER 13
	18
	19	/*
	20	* Sparc ELF relocation types
	21	*/
	22	#define R_SPARC_NONE 0
	23	#define R_SPARC_8 1
	24	#define R_SPARC_16 2
	25	#define R_SPARC_32 3
	26	#define R_SPARC_DISP8 4
	27	#define R_SPARC_DISP16 5
	28	#define R_SPARC_DISP32 6
	29	#define R_SPARC_WDISP30 7
	30	#define R_SPARC_WDISP22 8
	31	#define R_SPARC_HI22 9
	32	#define R_SPARC_22 10
	33	#define R_SPARC_13 11
	34	#define R_SPARC_LO10 12
	35	#define R_SPARC_GOT10 13
	36	#define R_SPARC_GOT13 14
	37	#define R_SPARC_GOT22 15
	38	#define R_SPARC_PC10 16
	39	#define R_SPARC_PC22 17
	40	#define R_SPARC_WPLT30 18
	41	#define R_SPARC_COPY 19
	42	#define R_SPARC_GLOB_DAT 20
	43	#define R_SPARC_JMP_SLOT 21
	44	#define R_SPARC_RELATIVE 22
	45	#define R_SPARC_UA32 23
	46	#define R_SPARC_PLT32 24
	47	#define R_SPARC_HIPLT22 25
	48	#define R_SPARC_LOPLT10 26
	49	#define R_SPARC_PCPLT32 27
	50	#define R_SPARC_PCPLT22 28
	51	#define R_SPARC_PCPLT10 29
	52	#define R_SPARC_10 30
	53	#define R_SPARC_11 31
	54	#define R_SPARC_64 32
	55	#define R_SPARC_OLO10 33
	56	#define R_SPARC_WDISP16 40
	57	#define R_SPARC_WDISP19 41
	58	#define R_SPARC_7 43
	59	#define R_SPARC_5 44
	60	#define R_SPARC_6 45
	61
	62	/* Bits present in AT_HWCAP, primarily for Sparc32. */
	63
	64	#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */
	65	#define HWCAP_SPARC_STBAR 2
	66	#define HWCAP_SPARC_SWAP 4
	67	#define HWCAP_SPARC_MULDIV 8
	68	#define HWCAP_SPARC_V9 16
	69	#define HWCAP_SPARC_ULTRA3 32
97532f59	70	#define HWCAP_SPARC_BLKINIT 64
8b224b81	71	#define HWCAP_SPARC_N2 128
1da177e4 LT	72
	73	/*
	74	* These are used to set parameters in the core dumps.
	75	*/
	76	#ifndef ELF_ARCH
	77	#define ELF_ARCH EM_SPARCV9
	78	#define ELF_CLASS ELFCLASS64
	79	#define ELF_DATA ELFDATA2MSB
	80
	81	typedef unsigned long elf_greg_t;
	82
	83	#define ELF_NGREG 36
	84	typedef elf_greg_t elf_gregset_t[ELF_NGREG];
	85	/* Format of 64-bit elf_gregset_t is:
	86	* G0 --> G7
	87	* O0 --> O7
	88	* L0 --> L7
	89	* I0 --> I7
	90	* TSTATE
	91	* TPC
	92	* TNPC
	93	* Y
	94	*/
	95	#define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs) \
	96	do { unsigned long *dest = &(__elf_regs[0]); \
	97	struct pt_regs *src = (__pt_regs); \
	98	unsigned long __user *sp; \
	99	int i; \
	100	for(i = 0; i < 16; i++) \
	101	dest[i] = src->u_regs[i]; \
	102	/* Don't try this at home kids... */ \
	103	sp = (unsigned long __user *) \
	104	((src->u_regs[14] + STACK_BIAS) \
	105	& 0xfffffffffffffff8UL); \
	106	for(i = 0; i < 16; i++) \
	107	__get_user(dest[i+16], &sp[i]); \
	108	dest[32] = src->tstate; \
	109	dest[33] = src->tpc; \
	110	dest[34] = src->tnpc; \
	111	dest[35] = src->y; \
	112	} while (0);
	113
	114	typedef struct {
	115	unsigned long pr_regs[32];
	116	unsigned long pr_fsr;
	117	unsigned long pr_gsr;
	118	unsigned long pr_fprs;
	119	} elf_fpregset_t;
	120	#endif
	121
	122	#define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs) \
26ecbdea	123	({ ELF_CORE_COPY_REGS((*(__elf_regs)), task_pt_regs(__tsk)); 1; })
1da177e4 LT	124
	125	/*
	126	* This is used to ensure we don't load something for the wrong architecture.
	127	*/
	128	#ifndef elf_check_arch
	129	#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) /* Might be EM_SPARCV9 or EM_SPARC */
	130	#endif
	131
	132	#define USE_ELF_CORE_DUMP
	133	#define ELF_EXEC_PAGESIZE PAGE_SIZE
	134
	135	/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
	136	use of this is to invoke "./ld.so someprog" to test out a new version of
	137	the loader. We need to make sure that it is out of the way of the program
	138	that it will "exec", and that there is sufficient room for the brk. */
	139
	140	#ifndef ELF_ET_DYN_BASE
	141	#define ELF_ET_DYN_BASE 0x0000010000000000UL
	142	#endif
	143
	144
	145	/* This yields a mask that user programs can use to figure out what
	146	instruction set this cpu supports. */
	147
	148	/* On Ultra, we support all of the v8 capabilities. */
97532f59 DM	149	static inline unsigned int sparc64_elf_hwcap(void)
	150	{
	151	unsigned int cap = (HWCAP_SPARC_FLUSH \| HWCAP_SPARC_STBAR \|
	152	HWCAP_SPARC_SWAP \| HWCAP_SPARC_MULDIV \|
	153	HWCAP_SPARC_V9);
	154
	155	if (tlb_type == cheetah \|\| tlb_type == cheetah_plus)
	156	cap \|= HWCAP_SPARC_ULTRA3;
8b224b81 DM	157	else if (tlb_type == hypervisor) {
	158	if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 \|\|
	159	sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
	160	cap \|= HWCAP_SPARC_BLKINIT;
	161	if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
	162	cap \|= HWCAP_SPARC_N2;
	163	}
97532f59 DM	164
	165	return cap;
	166	}
	167
	168	#define ELF_HWCAP sparc64_elf_hwcap();
1da177e4 LT	169
	170	/* This yields a string that ld.so will use to load implementation
	171	specific libraries for optimization. This is more specific in
	172	intent than poking at uname or /proc/cpuinfo. */
	173
	174	#define ELF_PLATFORM (NULL)
	175
1da177e4 LT	176	#define SET_PERSONALITY(ex, ibcs2) \
	177	do { unsigned long new_flags = current_thread_info()->flags; \
	178	new_flags &= _TIF_32BIT; \
	179	if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
	180	new_flags \|= _TIF_32BIT; \
	181	else \
	182	new_flags &= ~_TIF_32BIT; \
	183	if ((current_thread_info()->flags & _TIF_32BIT) \
	184	!= new_flags) \
	185	set_thread_flag(TIF_ABI_PENDING); \
	186	else \
	187	clear_thread_flag(TIF_ABI_PENDING); \
	188	/* flush_thread will update pgd cache */ \
	189	if (ibcs2) \
	190	set_personality(PER_SVR4); \
	191	else if (current->personality != PER_LINUX32) \
	192	set_personality(PER_LINUX); \
	193	} while (0)
1da177e4 LT	194
1da177e4 LT	195	#endif /* !(__ASM_SPARC64_ELF_H) */