[mirror_ubuntu-artful-kernel.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		70
#define R_SH_GOTOFF20		71
#define R_SH_GOTFUNCDESC	72
#define R_SH_GOTFUNCDESC20	73
#define R_SH_GOTOFFFUNCDESC	74
#define R_SH_GOTOFFFUNCDESC20	75
#define R_SH_FUNCDESC		76
#define R_SH_FUNCDESC_VALUE	77

#if 0 /* XXX - later .. */
#define R_SH_GOT20		198
#define R_SH_GOTOFF20		199
#define R_SH_GOTFUNCDESC	200
#define R_SH_GOTFUNCDESC20	201
#define R_SH_GOTOFFFUNCDESC	202
#define R_SH_GOTOFFFUNCDESC20	203
#define R_SH_FUNCDESC		204
#define R_SH_FUNCDESC_VALUE	205
#endif

/* 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)

#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
#define VSYSCALL_AUX_ENT
#endif /* CONFIG_VSYSCALL */

#ifdef CONFIG_SH_FPU
#define FPU_AUX_ENT	NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
#else
#define FPU_AUX_ENT
#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
	52	/* FDPIC relocs */
	53	#define R_SH_GOT20 70
	54	#define R_SH_GOTOFF20 71
	55	#define R_SH_GOTFUNCDESC 72
	56	#define R_SH_GOTFUNCDESC20 73
	57	#define R_SH_GOTOFFFUNCDESC 74
	58	#define R_SH_GOTOFFFUNCDESC20 75
	59	#define R_SH_FUNCDESC 76
	60	#define R_SH_FUNCDESC_VALUE 77
	61
	62	#if 0 /* XXX - later .. */
	63	#define R_SH_GOT20 198
	64	#define R_SH_GOTOFF20 199
	65	#define R_SH_GOTFUNCDESC 200
	66	#define R_SH_GOTFUNCDESC20 201
	67	#define R_SH_GOTOFFFUNCDESC 202
	68	#define R_SH_GOTOFFFUNCDESC20 203
	69	#define R_SH_FUNCDESC 204
	70	#define R_SH_FUNCDESC_VALUE 205
	71	#endif
	72
b542ad11 PM	73	/* SHmedia relocs */
	74	#define R_SH_IMM_LOW16 246
	75	#define R_SH_IMM_LOW16_PCREL 247
	76	#define R_SH_IMM_MEDLOW16 248
	77	#define R_SH_IMM_MEDLOW16_PCREL 249
1da177e4 LT	78	/* Keep this the last entry. */
	79	#define R_SH_NUM 256
	80
	81	/*
	82	* ELF register definitions..
	83	*/
	84
1da177e4 LT	85	typedef unsigned long elf_greg_t;
	86
	87	#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
	88	typedef elf_greg_t elf_gregset_t[ELF_NGREG];
	89
	90	typedef struct user_fpu_struct elf_fpregset_t;
	91
1da177e4 LT	92	/*
	93	* These are used to set parameters in the core dumps.
	94	*/
	95	#define ELF_CLASS ELFCLASS32
	96	#ifdef __LITTLE_ENDIAN__
	97	#define ELF_DATA ELFDATA2LSB
	98	#else
	99	#define ELF_DATA ELFDATA2MSB
	100	#endif
	101	#define ELF_ARCH EM_SH
	102
a9f1365e PM	103	#ifdef __KERNEL__
	104	/*
	105	* This is used to ensure we don't load something for the wrong architecture.
	106	*/
3bc24a1a PM	107	#define elf_check_arch(x) ((x)->e_machine == EM_SH)
	108	#define elf_check_fdpic(x) ((x)->e_flags & EF_SH_FDPIC)
	109	#define elf_check_const_displacement(x) ((x)->e_flags & EF_SH_PIC)
a9f1365e	110
934135c1	111	/*
e7ab3cd2 PM	112	* Enable dump using regset.
e7ab3cd2 PM	113	* This covers all of general/DSP/FPU regs.
934135c1 PM	114	*/
934135c1 PM	115	#define CORE_DUMP_USE_REGSET
934135c1	116
3bc24a1a	117	#define ELF_FDPIC_CORE_EFLAGS EF_SH_FDPIC
21440cf0	118	#define ELF_EXEC_PAGESIZE PAGE_SIZE
1da177e4 LT	119
	120	/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
	121	use of this is to invoke "./ld.so someprog" to test out a new version of
	122	the loader. We need to make sure that it is out of the way of the program
	123	that it will "exec", and that there is sufficient room for the brk. */
	124
	125	#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
	126
1da177e4 LT	127	#define ELF_CORE_COPY_REGS(_dest,_regs) \
	128	memcpy((char ) &_dest, (char ) _regs, \
	129	sizeof(struct pt_regs));
	130
	131	/* This yields a mask that user programs can use to figure out what
	132	instruction set this CPU supports. This could be done in user space,
	133	but it's not easy, and we've already done it here. */
	134
315bb968	135	#define ELF_HWCAP (boot_cpu_data.flags)
1da177e4 LT	136
	137	/* This yields a string that ld.so will use to load implementation
	138	specific libraries for optimization. This is more specific in
	139	intent than poking at uname or /proc/cpuinfo.
	140
	141	For the moment, we have only optimizations for the Intel generations,
	142	but that could change... */
	143
a9f1365e	144	#define ELF_PLATFORM (utsname()->machine)
1da177e4	145
b542ad11 PM	146	#ifdef __SH5__
	147	#define ELF_PLAT_INIT(_r, load_addr) \
	148	do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
	149	_r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
	150	_r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
	151	_r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \
	152	_r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \
	153	_r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \
	154	_r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \
	155	_r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \
	156	_r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \
	157	_r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \
	158	_r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \
	159	_r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \
	160	_r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \
	161	_r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \
	162	_r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \
	163	_r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \
	164	_r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \
	165	_r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \
	166	_r->sr = SR_FD \| SR_MMU; } while (0)
	167	#else
1da177e4 LT	168	#define ELF_PLAT_INIT(_r, load_addr) \
	169	do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
	170	_r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
	171	_r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
	172	_r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \
	173	_r->sr = SR_FD; } while (0)
3bc24a1a PM	174
	175	#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, \
	176	_dynamic_addr) \
	177	do { \
	178	_r->regs[0] = 0; \
	179	_r->regs[1] = 0; \
	180	_r->regs[2] = 0; \
	181	_r->regs[3] = 0; \
	182	_r->regs[4] = 0; \
	183	_r->regs[5] = 0; \
	184	_r->regs[6] = 0; \
	185	_r->regs[7] = 0; \
	186	_r->regs[8] = _exec_map_addr; \
	187	_r->regs[9] = _interp_map_addr; \
	188	_r->regs[10] = _dynamic_addr; \
	189	_r->regs[11] = 0; \
	190	_r->regs[12] = 0; \
	191	_r->regs[13] = 0; \
	192	_r->regs[14] = 0; \
	193	_r->sr = SR_FD; \
	194	} while (0)
b542ad11	195	#endif
1da177e4	196
9a19eb2a PM	197	#define SET_PERSONALITY(ex) set_personality(PER_LINUX_32BIT)
9a19eb2a PM	198
19f9a34f PM	199	#ifdef CONFIG_VSYSCALL
	200	/* vDSO has arch_setup_additional_pages */
	201	#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
	202	struct linux_binprm;
	203	extern int arch_setup_additional_pages(struct linux_binprm *bprm,
fc5243d9	204	int uses_interp);
19f9a34f PM	205
	206	extern unsigned int vdso_enabled;
	207	extern void __kernel_vsyscall;
	208
	209	#define VDSO_BASE ((unsigned long)current->mm->context.vdso)
	210	#define VDSO_SYM(x) (VDSO_BASE + (unsigned long)(x))
	211
cd01204b PM	212	#define VSYSCALL_AUX_ENT \
	213	if (vdso_enabled) \
	214	NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE);
	215	#else
	216	#define VSYSCALL_AUX_ENT
	217	#endif /* CONFIG_VSYSCALL */
	218
98c4ecde PM	219	#ifdef CONFIG_SH_FPU
	220	#define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
	221	#else
	222	#define FPU_AUX_ENT
	223	#endif
	224
cd01204b PM	225	extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
cd01204b PM	226
4f9a58d7	227	/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
19f9a34f PM	228	#define ARCH_DLINFO \
19f9a34f PM	229	do { \
98c4ecde PM	230	/* Optional FPU initialization */ \
	231	FPU_AUX_ENT; \
	232	\
cd01204b	233	/* Optional vsyscall entry */ \
98c4ecde	234	VSYSCALL_AUX_ENT; \
cd01204b PM	235	\
	236	/* Cache desc */ \
	237	NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape); \
	238	NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape); \
	239	NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape); \
19f9a34f	240	} while (0)
19f9a34f	241
a9f1365e	242	#endif /* __KERNEL__ */
1da177e4	243	#endif /* __ASM_SH_ELF_H */