[mirror_ubuntu-zesty-kernel.git] / arch / arm / include / asm / elf.h

#ifndef __ASMARM_ELF_H
#define __ASMARM_ELF_H

#include <asm/hwcap.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	(2 * TASK_SIZE / 3)

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