[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / sh / include / asm / elf.h

#ifndef __ASM_SH_ELF_H
#define __ASM_SH_ELF_H

#include <linux/utsname.h>
#include <asm/auxvec.h>
#include <asm/ptrace.h>
#include <asm/user.h>

/* ELF header e_flags defines */
#define EF_SH_PIC		0x100	/* -fpic */
#define EF_SH_FDPIC		0x8000	/* -mfdpic */

/* SH (particularly SHcompact) relocation types  */
#define	R_SH_NONE		0
#define	R_SH_DIR32		1
#define	R_SH_REL32		2
#define	R_SH_DIR8WPN		3
#define	R_SH_IND12W		4
#define	R_SH_DIR8WPL		5
#define	R_SH_DIR8WPZ		6
#define	R_SH_DIR8BP		7
#define	R_SH_DIR8W		8
#define	R_SH_DIR8L		9
#define	R_SH_SWITCH16		25
#define	R_SH_SWITCH32		26
#define	R_SH_USES		27
#define	R_SH_COUNT		28
#define	R_SH_ALIGN		29
#define	R_SH_CODE		30
#define	R_SH_DATA		31
#define	R_SH_LABEL		32
#define	R_SH_SWITCH8		33
#define	R_SH_GNU_VTINHERIT	34
#define	R_SH_GNU_VTENTRY	35
#define	R_SH_TLS_GD_32		144
#define	R_SH_TLS_LD_32		145
#define	R_SH_TLS_LDO_32		146
#define	R_SH_TLS_IE_32		147
#define	R_SH_TLS_LE_32		148
#define	R_SH_TLS_DTPMOD32	149
#define	R_SH_TLS_DTPOFF32	150
#define	R_SH_TLS_TPOFF32	151
#define	R_SH_GOT32		160
#define	R_SH_PLT32		161
#define	R_SH_COPY		162
#define	R_SH_GLOB_DAT		163
#define	R_SH_JMP_SLOT		164
#define	R_SH_RELATIVE		165
#define	R_SH_GOTOFF		166
#define	R_SH_GOTPC		167

/* FDPIC relocs */
#define R_SH_GOT20		201
#define R_SH_GOTOFF20		202
#define R_SH_GOTFUNCDESC	203
#define R_SH_GOTFUNCDESC20	204
#define R_SH_GOTOFFFUNCDESC	205
#define R_SH_GOTOFFFUNCDESC20	206
#define R_SH_FUNCDESC		207
#define R_SH_FUNCDESC_VALUE	208

/* SHmedia relocs */
#define R_SH_IMM_LOW16		246
#define R_SH_IMM_LOW16_PCREL	247
#define R_SH_IMM_MEDLOW16	248
#define R_SH_IMM_MEDLOW16_PCREL	249
/* Keep this the last entry.  */
#define	R_SH_NUM		256

/*
 * ELF register definitions..
 */

typedef unsigned long elf_greg_t;

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

typedef struct user_fpu_struct elf_fpregset_t;

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

#ifdef __KERNEL__
/*
 * This is used to ensure we don't load something for the wrong architecture.
 */
#define elf_check_arch(x)		((x)->e_machine == EM_SH)
#define elf_check_fdpic(x)		((x)->e_flags & EF_SH_FDPIC)
#define elf_check_const_displacement(x)	((x)->e_flags & EF_SH_PIC)

/*
 * Enable dump using regset.
 * This covers all of general/DSP/FPU regs.
 */
#define CORE_DUMP_USE_REGSET

#define ELF_FDPIC_CORE_EFLAGS	EF_SH_FDPIC
#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.  */

#define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)

#define ELF_CORE_COPY_REGS(_dest,_regs)				\
	memcpy((char *) &_dest, (char *) _regs,			\
	       sizeof(struct pt_regs));

/* This yields a mask that user programs can use to figure out what
   instruction set this CPU supports.  This could be done in user space,
   but it's not easy, and we've already done it here.  */

#define ELF_HWCAP	(boot_cpu_data.flags)

/* 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	(utsname()->machine)

#ifdef __SH5__
#define ELF_PLAT_INIT(_r, load_addr) \
  do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
       _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
       _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
       _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \
       _r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \
       _r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \
       _r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \
       _r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \
       _r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \
       _r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \
       _r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \
       _r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \
       _r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \
       _r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \
       _r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \
       _r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \
       _r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \
       _r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \
       _r->sr = SR_FD | SR_MMU; } while (0)
#else
#define ELF_PLAT_INIT(_r, load_addr) \
  do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
       _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
       _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
       _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \
       _r->sr = SR_FD; } while (0)

#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr,	\
			    _dynamic_addr)				\
do {									\
	_r->regs[0]	= 0;						\
	_r->regs[1]	= 0;						\
	_r->regs[2]	= 0;						\
	_r->regs[3]	= 0;						\
	_r->regs[4]	= 0;						\
	_r->regs[5]	= 0;						\
	_r->regs[6]	= 0;						\
	_r->regs[7]	= 0;						\
	_r->regs[8]	= _exec_map_addr;				\
	_r->regs[9]	= _interp_map_addr;				\
	_r->regs[10]	= _dynamic_addr;				\
	_r->regs[11]	= 0;						\
	_r->regs[12]	= 0;						\
	_r->regs[13]	= 0;						\
	_r->regs[14]	= 0;						\
	_r->sr		= SR_FD;					\
} while (0)
#endif

#define SET_PERSONALITY(ex) \
	set_personality(PER_LINUX_32BIT | (current->personality & (~PER_MASK)))

#ifdef CONFIG_VSYSCALL
/* vDSO has arch_setup_additional_pages */
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
struct linux_binprm;
extern int arch_setup_additional_pages(struct linux_binprm *bprm,
				       int uses_interp);

extern unsigned int vdso_enabled;
extern void __kernel_vsyscall;

#define VDSO_BASE		((unsigned long)current->mm->context.vdso)
#define VDSO_SYM(x)		(VDSO_BASE + (unsigned long)(x))

#define VSYSCALL_AUX_ENT					\
	if (vdso_enabled)					\
		NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE);	\
	else							\
		NEW_AUX_ENT(AT_IGNORE, 0)
#else
#define VSYSCALL_AUX_ENT	NEW_AUX_ENT(AT_IGNORE, 0)
#endif /* CONFIG_VSYSCALL */

#ifdef CONFIG_SH_FPU
#define FPU_AUX_ENT	NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
#else
#define FPU_AUX_ENT	NEW_AUX_ENT(AT_IGNORE, 0)
#endif

extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;

/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
#define ARCH_DLINFO						\
do {								\
	/* Optional FPU initialization */			\
	FPU_AUX_ENT;						\
								\
	/* Optional vsyscall entry */				\
	VSYSCALL_AUX_ENT;					\
								\
	/* Cache desc */					\
	NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape);	\
	NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape);	\
	NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape);		\
} while (0)

#endif /* __KERNEL__ */
#endif /* __ASM_SH_ELF_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef __ASM_SH_ELF_H
	2	#define __ASM_SH_ELF_H
	3
3bc24a1a	4	#include <linux/utsname.h>
315bb968 PM	5	#include <asm/auxvec.h>
	6	#include <asm/ptrace.h>
	7	#include <asm/user.h>
	8
3bc24a1a PM	9	/* ELF header e_flags defines */
	10	#define EF_SH_PIC 0x100 /* -fpic */
	11	#define EF_SH_FDPIC 0x8000 /* -mfdpic */
	12
b542ad11	13	/* SH (particularly SHcompact) relocation types */
1da177e4 LT	14	#define R_SH_NONE 0
	15	#define R_SH_DIR32 1
	16	#define R_SH_REL32 2
	17	#define R_SH_DIR8WPN 3
	18	#define R_SH_IND12W 4
	19	#define R_SH_DIR8WPL 5
	20	#define R_SH_DIR8WPZ 6
	21	#define R_SH_DIR8BP 7
	22	#define R_SH_DIR8W 8
	23	#define R_SH_DIR8L 9
	24	#define R_SH_SWITCH16 25
	25	#define R_SH_SWITCH32 26
	26	#define R_SH_USES 27
	27	#define R_SH_COUNT 28
	28	#define R_SH_ALIGN 29
	29	#define R_SH_CODE 30
	30	#define R_SH_DATA 31
	31	#define R_SH_LABEL 32
	32	#define R_SH_SWITCH8 33
	33	#define R_SH_GNU_VTINHERIT 34
	34	#define R_SH_GNU_VTENTRY 35
	35	#define R_SH_TLS_GD_32 144
	36	#define R_SH_TLS_LD_32 145
	37	#define R_SH_TLS_LDO_32 146
	38	#define R_SH_TLS_IE_32 147
	39	#define R_SH_TLS_LE_32 148
	40	#define R_SH_TLS_DTPMOD32 149
	41	#define R_SH_TLS_DTPOFF32 150
	42	#define R_SH_TLS_TPOFF32 151
	43	#define R_SH_GOT32 160
	44	#define R_SH_PLT32 161
	45	#define R_SH_COPY 162
	46	#define R_SH_GLOB_DAT 163
	47	#define R_SH_JMP_SLOT 164
	48	#define R_SH_RELATIVE 165
	49	#define R_SH_GOTOFF 166
	50	#define R_SH_GOTPC 167
3bc24a1a PM	51
3bc24a1a PM	52	/* FDPIC relocs */
9a9fcfa0 PM	53	#define R_SH_GOT20 201
	54	#define R_SH_GOTOFF20 202
	55	#define R_SH_GOTFUNCDESC 203
	56	#define R_SH_GOTFUNCDESC20 204
	57	#define R_SH_GOTOFFFUNCDESC 205
	58	#define R_SH_GOTOFFFUNCDESC20 206
	59	#define R_SH_FUNCDESC 207
	60	#define R_SH_FUNCDESC_VALUE 208
3bc24a1a	61
b542ad11 PM	62	/* SHmedia relocs */
	63	#define R_SH_IMM_LOW16 246
	64	#define R_SH_IMM_LOW16_PCREL 247
	65	#define R_SH_IMM_MEDLOW16 248
	66	#define R_SH_IMM_MEDLOW16_PCREL 249
1da177e4 LT	67	/* Keep this the last entry. */
	68	#define R_SH_NUM 256
	69
	70	/*
	71	* ELF register definitions..
	72	*/
	73
1da177e4 LT	74	typedef unsigned long elf_greg_t;
	75
	76	#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
	77	typedef elf_greg_t elf_gregset_t[ELF_NGREG];
	78
	79	typedef struct user_fpu_struct elf_fpregset_t;
	80
1da177e4 LT	81	/*
	82	* These are used to set parameters in the core dumps.
	83	*/
	84	#define ELF_CLASS ELFCLASS32
	85	#ifdef __LITTLE_ENDIAN__
	86	#define ELF_DATA ELFDATA2LSB
	87	#else
	88	#define ELF_DATA ELFDATA2MSB
	89	#endif
	90	#define ELF_ARCH EM_SH
	91
a9f1365e PM	92	#ifdef __KERNEL__
	93	/*
	94	* This is used to ensure we don't load something for the wrong architecture.
	95	*/
3bc24a1a PM	96	#define elf_check_arch(x) ((x)->e_machine == EM_SH)
	97	#define elf_check_fdpic(x) ((x)->e_flags & EF_SH_FDPIC)
	98	#define elf_check_const_displacement(x) ((x)->e_flags & EF_SH_PIC)
a9f1365e	99
934135c1	100	/*
e7ab3cd2 PM	101	* Enable dump using regset.
e7ab3cd2 PM	102	* This covers all of general/DSP/FPU regs.
934135c1 PM	103	*/
934135c1 PM	104	#define CORE_DUMP_USE_REGSET
934135c1	105
3bc24a1a	106	#define ELF_FDPIC_CORE_EFLAGS EF_SH_FDPIC
21440cf0	107	#define ELF_EXEC_PAGESIZE PAGE_SIZE
1da177e4 LT	108
	109	/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
	110	use of this is to invoke "./ld.so someprog" to test out a new version of
	111	the loader. We need to make sure that it is out of the way of the program
	112	that it will "exec", and that there is sufficient room for the brk. */
	113
	114	#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
	115
1da177e4 LT	116	#define ELF_CORE_COPY_REGS(_dest,_regs) \
	117	memcpy((char ) &_dest, (char ) _regs, \
	118	sizeof(struct pt_regs));
	119
	120	/* This yields a mask that user programs can use to figure out what
	121	instruction set this CPU supports. This could be done in user space,
	122	but it's not easy, and we've already done it here. */
	123
315bb968	124	#define ELF_HWCAP (boot_cpu_data.flags)
1da177e4 LT	125
	126	/* This yields a string that ld.so will use to load implementation
	127	specific libraries for optimization. This is more specific in
	128	intent than poking at uname or /proc/cpuinfo.
	129
	130	For the moment, we have only optimizations for the Intel generations,
	131	but that could change... */
	132
a9f1365e	133	#define ELF_PLATFORM (utsname()->machine)
1da177e4	134
b542ad11 PM	135	#ifdef __SH5__
	136	#define ELF_PLAT_INIT(_r, load_addr) \
	137	do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
	138	_r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
	139	_r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
	140	_r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \
	141	_r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \
	142	_r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \
	143	_r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \
	144	_r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \
	145	_r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \
	146	_r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \
	147	_r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \
	148	_r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \
	149	_r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \
	150	_r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \
	151	_r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \
	152	_r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \
	153	_r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \
	154	_r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \
	155	_r->sr = SR_FD \| SR_MMU; } while (0)
	156	#else
1da177e4 LT	157	#define ELF_PLAT_INIT(_r, load_addr) \
	158	do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
	159	_r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
	160	_r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
	161	_r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \
	162	_r->sr = SR_FD; } while (0)
3bc24a1a PM	163
	164	#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, \
	165	_dynamic_addr) \
	166	do { \
	167	_r->regs[0] = 0; \
	168	_r->regs[1] = 0; \
	169	_r->regs[2] = 0; \
	170	_r->regs[3] = 0; \
	171	_r->regs[4] = 0; \
	172	_r->regs[5] = 0; \
	173	_r->regs[6] = 0; \
	174	_r->regs[7] = 0; \
	175	_r->regs[8] = _exec_map_addr; \
	176	_r->regs[9] = _interp_map_addr; \
	177	_r->regs[10] = _dynamic_addr; \
	178	_r->regs[11] = 0; \
	179	_r->regs[12] = 0; \
	180	_r->regs[13] = 0; \
	181	_r->regs[14] = 0; \
	182	_r->sr = SR_FD; \
	183	} while (0)
b542ad11	184	#endif
1da177e4	185
16f3e95b JK	186	#define SET_PERSONALITY(ex) \
16f3e95b JK	187	set_personality(PER_LINUX_32BIT \| (current->personality & (~PER_MASK)))
9a19eb2a	188
19f9a34f PM	189	#ifdef CONFIG_VSYSCALL
	190	/* vDSO has arch_setup_additional_pages */
	191	#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
	192	struct linux_binprm;
	193	extern int arch_setup_additional_pages(struct linux_binprm *bprm,
fc5243d9	194	int uses_interp);
19f9a34f PM	195
	196	extern unsigned int vdso_enabled;
	197	extern void __kernel_vsyscall;
	198
	199	#define VDSO_BASE ((unsigned long)current->mm->context.vdso)
	200	#define VDSO_SYM(x) (VDSO_BASE + (unsigned long)(x))
	201
cd01204b PM	202	#define VSYSCALL_AUX_ENT \
cd01204b PM	203	if (vdso_enabled) \
d5ab7803 AS	204	NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE); \
d5ab7803 AS	205	else \
4a71997a	206	NEW_AUX_ENT(AT_IGNORE, 0)
cd01204b	207	#else
4a71997a	208	#define VSYSCALL_AUX_ENT NEW_AUX_ENT(AT_IGNORE, 0)
cd01204b PM	209	#endif /* CONFIG_VSYSCALL */
cd01204b PM	210
98c4ecde PM	211	#ifdef CONFIG_SH_FPU
	212	#define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
	213	#else
d5ab7803	214	#define FPU_AUX_ENT NEW_AUX_ENT(AT_IGNORE, 0)
98c4ecde PM	215	#endif
98c4ecde PM	216
cd01204b PM	217	extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
cd01204b PM	218
4f9a58d7	219	/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
19f9a34f PM	220	#define ARCH_DLINFO \
19f9a34f PM	221	do { \
98c4ecde PM	222	/* Optional FPU initialization */ \
	223	FPU_AUX_ENT; \
	224	\
cd01204b	225	/* Optional vsyscall entry */ \
98c4ecde	226	VSYSCALL_AUX_ENT; \
cd01204b PM	227	\
	228	/* Cache desc */ \
	229	NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape); \
	230	NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape); \
	231	NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape); \
19f9a34f	232	} while (0)
19f9a34f	233
a9f1365e	234	#endif /* __KERNEL__ */
1da177e4	235	#endif /* __ASM_SH_ELF_H */