[deliverable/linux.git] / arch / arm / include / asm / elf.h

#ifndef __ASMARM_ELF_H
#define __ASMARM_ELF_H

#include <asm/auxvec.h>
#include <asm/hwcap.h>
#include <asm/vdso_datapage.h>

/*
 * ELF register definitions..
 */
#include <asm/ptrace.h>
#include <asm/user.h>

struct task_struct;

typedef unsigned long elf_greg_t;
typedef unsigned long elf_freg_t[3];

#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];

typedef struct user_fp elf_fpregset_t;

#define EF_ARM_EABI_MASK	0xff000000
#define EF_ARM_EABI_UNKNOWN	0x00000000
#define EF_ARM_EABI_VER1	0x01000000
#define EF_ARM_EABI_VER2	0x02000000
#define EF_ARM_EABI_VER3	0x03000000
#define EF_ARM_EABI_VER4	0x04000000
#define EF_ARM_EABI_VER5	0x05000000

#define EF_ARM_BE8		0x00800000	/* ABI 4,5 */
#define EF_ARM_LE8		0x00400000	/* ABI 4,5 */
#define EF_ARM_MAVERICK_FLOAT	0x00000800	/* ABI 0 */
#define EF_ARM_VFP_FLOAT	0x00000400	/* ABI 0 */
#define EF_ARM_SOFT_FLOAT	0x00000200	/* ABI 0 */
#define EF_ARM_OLD_ABI		0x00000100	/* ABI 0 */
#define EF_ARM_NEW_ABI		0x00000080	/* ABI 0 */
#define EF_ARM_ALIGN8		0x00000040	/* ABI 0 */
#define EF_ARM_PIC		0x00000020	/* ABI 0 */
#define EF_ARM_MAPSYMSFIRST	0x00000010	/* ABI 2 */
#define EF_ARM_APCS_FLOAT	0x00000010	/* ABI 0, floats in fp regs */
#define EF_ARM_DYNSYMSUSESEGIDX	0x00000008	/* ABI 2 */
#define EF_ARM_APCS_26		0x00000008	/* ABI 0 */
#define EF_ARM_SYMSARESORTED	0x00000004	/* ABI 1,2 */
#define EF_ARM_INTERWORK	0x00000004	/* ABI 0 */
#define EF_ARM_HASENTRY		0x00000002	/* All */
#define EF_ARM_RELEXEC		0x00000001	/* All */

#define R_ARM_NONE		0
#define R_ARM_PC24		1
#define R_ARM_ABS32		2
#define R_ARM_CALL		28
#define R_ARM_JUMP24		29
#define R_ARM_TARGET1		38
#define R_ARM_V4BX		40
#define R_ARM_PREL31		42
#define R_ARM_MOVW_ABS_NC	43
#define R_ARM_MOVT_ABS		44

#define R_ARM_THM_CALL		10
#define R_ARM_THM_JUMP24	30
#define R_ARM_THM_MOVW_ABS_NC	47
#define R_ARM_THM_MOVT_ABS	48

/*
 * These are used to set parameters in the core dumps.
 */
#define ELF_CLASS	ELFCLASS32
#ifdef __ARMEB__
#define ELF_DATA	ELFDATA2MSB
#else
#define ELF_DATA	ELFDATA2LSB
#endif
#define ELF_ARCH	EM_ARM

/*
 * 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 now we just provide a fairly general string that describes the
 * processor family.  This could be made more specific later if someone
 * implemented optimisations that require it.  26-bit CPUs give you
 * "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
 * supported).  32-bit CPUs give you "v3[lb]" for anything based on an
 * ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
 * core.
 */
#define ELF_PLATFORM_SIZE 8
#define ELF_PLATFORM	(elf_platform)

extern char elf_platform[];

struct elf32_hdr;

/*
 * This is used to ensure we don't load something for the wrong architecture.
 */
extern int elf_check_arch(const struct elf32_hdr *);
#define elf_check_arch elf_check_arch

#define vmcore_elf64_check_arch(x) (0)

extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int);
#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk)

struct task_struct;
int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
#define ELF_CORE_COPY_TASK_REGS dump_task_regs

#define CORE_DUMP_USE_REGSET
#define ELF_EXEC_PAGESIZE	4096

/* 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.  */

#define ELF_ET_DYN_BASE	(TASK_SIZE / 3 * 2)

/* When the program starts, a1 contains a pointer to a function to be 
   registered with atexit, as per the SVR4 ABI.  A value of 0 means we 
   have no such handler.  */
#define ELF_PLAT_INIT(_r, load_addr)	(_r)->ARM_r0 = 0

extern void elf_set_personality(const struct elf32_hdr *);
#define SET_PERSONALITY(ex)	elf_set_personality(&(ex))

#ifdef CONFIG_MMU
#ifdef CONFIG_VDSO
#define ARCH_DLINFO						\
do {								\
	NEW_AUX_ENT(AT_SYSINFO_EHDR,				\
		    (elf_addr_t)current->mm->context.vdso);	\
} while (0)
#endif
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
struct linux_binprm;
int arch_setup_additional_pages(struct linux_binprm *, int);
#endif

#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef __ASMARM_ELF_H
	2	#define __ASMARM_ELF_H
	3
1713ce7c	4	#include <asm/auxvec.h>
f393e99d	5	#include <asm/hwcap.h>
1713ce7c	6	#include <asm/vdso_datapage.h>
f393e99d	7
1da177e4 LT	8	/*
	9	* ELF register definitions..
	10	*/
1da177e4 LT	11	#include <asm/ptrace.h>
1da177e4 LT	12	#include <asm/user.h>
1da177e4	13
ea5ce655 AM	14	struct task_struct;
ea5ce655 AM	15
1da177e4 LT	16	typedef unsigned long elf_greg_t;
	17	typedef unsigned long elf_freg_t[3];
	18
4a5222ca RK	19	#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
	20	typedef elf_greg_t elf_gregset_t[ELF_NGREG];
	21
	22	typedef struct user_fp elf_fpregset_t;
4a5222ca	23
8ec53663 RK	24	#define EF_ARM_EABI_MASK 0xff000000
	25	#define EF_ARM_EABI_UNKNOWN 0x00000000
	26	#define EF_ARM_EABI_VER1 0x01000000
	27	#define EF_ARM_EABI_VER2 0x02000000
	28	#define EF_ARM_EABI_VER3 0x03000000
	29	#define EF_ARM_EABI_VER4 0x04000000
	30	#define EF_ARM_EABI_VER5 0x05000000
	31
	32	#define EF_ARM_BE8 0x00800000 /* ABI 4,5 */
	33	#define EF_ARM_LE8 0x00400000 /* ABI 4,5 */
	34	#define EF_ARM_MAVERICK_FLOAT 0x00000800 /* ABI 0 */
	35	#define EF_ARM_VFP_FLOAT 0x00000400 /* ABI 0 */
	36	#define EF_ARM_SOFT_FLOAT 0x00000200 /* ABI 0 */
	37	#define EF_ARM_OLD_ABI 0x00000100 /* ABI 0 */
	38	#define EF_ARM_NEW_ABI 0x00000080 /* ABI 0 */
	39	#define EF_ARM_ALIGN8 0x00000040 /* ABI 0 */
	40	#define EF_ARM_PIC 0x00000020 /* ABI 0 */
	41	#define EF_ARM_MAPSYMSFIRST 0x00000010 /* ABI 2 */
	42	#define EF_ARM_APCS_FLOAT 0x00000010 /* ABI 0, floats in fp regs */
	43	#define EF_ARM_DYNSYMSUSESEGIDX 0x00000008 /* ABI 2 */
	44	#define EF_ARM_APCS_26 0x00000008 /* ABI 0 */
	45	#define EF_ARM_SYMSARESORTED 0x00000004 /* ABI 1,2 */
	46	#define EF_ARM_INTERWORK 0x00000004 /* ABI 0 */
	47	#define EF_ARM_HASENTRY 0x00000002 /* All */
	48	#define EF_ARM_RELEXEC 0x00000001 /* All */
1da177e4	49
ae51e609 PG	50	#define R_ARM_NONE 0
	51	#define R_ARM_PC24 1
	52	#define R_ARM_ABS32 2
	53	#define R_ARM_CALL 28
	54	#define R_ARM_JUMP24 29
55f0fb6a	55	#define R_ARM_TARGET1 38
ae51e609 PG	56	#define R_ARM_V4BX 40
	57	#define R_ARM_PREL31 42
	58	#define R_ARM_MOVW_ABS_NC 43
	59	#define R_ARM_MOVT_ABS 44
1da177e4	60
adca6dc2 CM	61	#define R_ARM_THM_CALL 10
adca6dc2 CM	62	#define R_ARM_THM_JUMP24 30
8dd47741 CM	63	#define R_ARM_THM_MOVW_ABS_NC 47
8dd47741 CM	64	#define R_ARM_THM_MOVT_ABS 48
adca6dc2	65
1da177e4 LT	66	/*
	67	* These are used to set parameters in the core dumps.
	68	*/
	69	#define ELF_CLASS ELFCLASS32
	70	#ifdef __ARMEB__
718a30a5	71	#define ELF_DATA ELFDATA2MSB
1da177e4	72	#else
718a30a5	73	#define ELF_DATA ELFDATA2LSB
1da177e4 LT	74	#endif
	75	#define ELF_ARCH EM_ARM
	76
4a5222ca RK	77	/*
	78	* This yields a string that ld.so will use to load implementation
	79	* specific libraries for optimization. This is more specific in
	80	* intent than poking at uname or /proc/cpuinfo.
	81	*
	82	* For now we just provide a fairly general string that describes the
	83	* processor family. This could be made more specific later if someone
	84	* implemented optimisations that require it. 26-bit CPUs give you
	85	* "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
	86	* supported). 32-bit CPUs give you "v3[lb]" for anything based on an
	87	* ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
	88	* core.
	89	*/
	90	#define ELF_PLATFORM_SIZE 8
	91	#define ELF_PLATFORM (elf_platform)
	92
	93	extern char elf_platform[];
4a5222ca	94
8ec53663	95	struct elf32_hdr;
4a5222ca RK	96
4a5222ca RK	97	/*
8ec53663	98	* This is used to ensure we don't load something for the wrong architecture.
4a5222ca	99	*/
8ec53663 RK	100	extern int elf_check_arch(const struct elf32_hdr *);
8ec53663 RK	101	#define elf_check_arch elf_check_arch
4a5222ca	102
4b3bf7ae MW	103	#define vmcore_elf64_check_arch(x) (0)
4b3bf7ae MW	104
8ec53663 RK	105	extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int);
8ec53663 RK	106	#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk)
6ff6340a	107
bb35579b	108	struct task_struct;
cde3f860 AB	109	int dump_task_regs(struct task_struct t, elf_gregset_t elfregs);
	110	#define ELF_CORE_COPY_TASK_REGS dump_task_regs
	111
5be6f62b	112	#define CORE_DUMP_USE_REGSET
1da177e4 LT	113	#define ELF_EXEC_PAGESIZE 4096
	114
	115	/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
	116	use of this is to invoke "./ld.so someprog" to test out a new version of
	117	the loader. We need to make sure that it is out of the way of the program
	118	that it will "exec", and that there is sufficient room for the brk. */
	119
8defb336	120	#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
1da177e4 LT	121
	122	/* When the program starts, a1 contains a pointer to a function to be
	123	registered with atexit, as per the SVR4 ABI. A value of 0 means we
	124	have no such handler. */
	125	#define ELF_PLAT_INIT(_r, load_addr) (_r)->ARM_r0 = 0
	126
8ec53663	127	extern void elf_set_personality(const struct elf32_hdr *);
0b592682	128	#define SET_PERSONALITY(ex) elf_set_personality(&(ex))
1da177e4	129
8c0cc8a5	130	#ifdef CONFIG_MMU
1713ce7c NL	131	#ifdef CONFIG_VDSO
	132	#define ARCH_DLINFO \
	133	do { \
	134	NEW_AUX_ENT(AT_SYSINFO_EHDR, \
	135	(elf_addr_t)current->mm->context.vdso); \
	136	} while (0)
	137	#endif
48be69a0 RK	138	#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
	139	struct linux_binprm;
	140	int arch_setup_additional_pages(struct linux_binprm *, int);
8c0cc8a5	141	#endif
48be69a0	142
1da177e4	143	#endif