[linux-2.6-block.git] / arch / blackfin / include / asm / elf.h

/*
 * Copyright 2004-2009 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#ifndef __ASMBFIN_ELF_H
#define __ASMBFIN_ELF_H

/*
 * ELF register definitions..
 */

#include <asm/ptrace.h>
#include <asm/user.h>

/* Processor specific flags for the ELF header e_flags field.  */
#define EF_BFIN_PIC		0x00000001	/* -fpic */
#define EF_BFIN_FDPIC		0x00000002	/* -mfdpic */
#define EF_BFIN_CODE_IN_L1	0x00000010	/* --code-in-l1 */
#define EF_BFIN_DATA_IN_L1	0x00000020	/* --data-in-l1 */
#define EF_BFIN_CODE_IN_L2	0x00000040	/* --code-in-l2 */
#define EF_BFIN_DATA_IN_L2	0x00000080	/* --data-in-l2 */

#if 1	/* core dumps not supported, but linux/elfcore.h needs these */
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 { } elf_fpregset_t;
#endif

/*
 * This is used to ensure we don't load something for the wrong architecture.
 */
#define elf_check_arch(x) ((x)->e_machine == EM_BLACKFIN)

#define elf_check_fdpic(x) ((x)->e_flags & EF_BFIN_FDPIC /* && !((x)->e_flags & EF_FRV_NON_PIC_RELOCS) */)
#define elf_check_const_displacement(x) ((x)->e_flags & EF_BFIN_PIC)

/* EM_BLACKFIN defined in linux/elf.h	*/

/*
 * These are used to set parameters in the core dumps.
 */
#define ELF_CLASS	ELFCLASS32
#define ELF_DATA	ELFDATA2LSB
#define ELF_ARCH	EM_BLACKFIN

#define ELF_PLAT_INIT(_r)	_r->p1 = 0

#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, _dynamic_addr)	\
do {											\
	_regs->r7	= 0;						\
	_regs->p0	= _exec_map_addr;				\
	_regs->p1	= _interp_map_addr;				\
	_regs->p2	= _dynamic_addr;				\
} while(0)

#if 0
#define CORE_DUMP_USE_REGSET
#endif
#define ELF_FDPIC_CORE_EFLAGS	EF_BFIN_FDPIC
#define ELF_EXEC_PAGESIZE	4096

#define R_BFIN_UNUSED0         0   /* relocation type 0 is not defined */
#define R_BFIN_PCREL5M2        1   /* LSETUP part a */
#define R_BFIN_UNUSED1         2   /* relocation type 2 is not defined */
#define R_BFIN_PCREL10         3   /* type 3, if cc jump <target> */
#define R_BFIN_PCREL12_JUMP    4   /* type 4, jump <target> */
#define R_BFIN_RIMM16          5   /* type 0x5, rN = <target> */
#define R_BFIN_LUIMM16         6   /* # 0x6, preg.l=<target> Load imm 16 to lower half */
#define R_BFIN_HUIMM16         7   /* # 0x7, preg.h=<target> Load imm 16 to upper half */
#define R_BFIN_PCREL12_JUMP_S  8   /* # 0x8 jump.s <target> */
#define R_BFIN_PCREL24_JUMP_X  9   /* # 0x9 jump.x <target> */
#define R_BFIN_PCREL24         10  /* # 0xa call <target> , not expandable */
#define R_BFIN_UNUSEDB         11  /* # 0xb not generated */
#define R_BFIN_UNUSEDC         12  /* # 0xc  not used */
#define R_BFIN_PCREL24_JUMP_L  13  /* 0xd jump.l <target> */
#define R_BFIN_PCREL24_CALL_X  14  /* 0xE, call.x <target> if <target> is above 24 bit limit call through P1 */
#define R_BFIN_VAR_EQ_SYMB     15  /* 0xf, linker should treat it same as 0x12 */
#define R_BFIN_BYTE_DATA       16  /* 0x10, .byte var = symbol */
#define R_BFIN_BYTE2_DATA      17  /* 0x11, .byte2 var = symbol */
#define R_BFIN_BYTE4_DATA      18  /* 0x12, .byte4 var = symbol and .var var=symbol */
#define R_BFIN_PCREL11         19  /* 0x13, lsetup part b */
#define R_BFIN_UNUSED14        20  /* 0x14, undefined */
#define R_BFIN_UNUSED15        21  /* not generated by VDSP 3.5 */

/* arithmetic relocations */
#define R_BFIN_PUSH            0xE0
#define R_BFIN_CONST           0xE1
#define R_BFIN_ADD             0xE2
#define R_BFIN_SUB             0xE3
#define R_BFIN_MULT            0xE4
#define R_BFIN_DIV             0xE5
#define R_BFIN_MOD             0xE6
#define R_BFIN_LSHIFT          0xE7
#define R_BFIN_RSHIFT          0xE8
#define R_BFIN_AND             0xE9
#define R_BFIN_OR              0xEA
#define R_BFIN_XOR             0xEB
#define R_BFIN_LAND            0xEC
#define R_BFIN_LOR             0xED
#define R_BFIN_LEN             0xEE
#define R_BFIN_NEG             0xEF
#define R_BFIN_COMP            0xF0
#define R_BFIN_PAGE            0xF1
#define R_BFIN_HWPAGE          0xF2
#define R_BFIN_ADDR            0xF3

/* 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         0xD0000000UL

#define ELF_CORE_COPY_REGS(pr_reg, regs)	\
        memcpy((char *) &pr_reg, (char *)regs,  \
               sizeof(struct pt_regs));

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

#define ELF_HWCAP	(0)

/* 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) set_personality(PER_LINUX)

#endif
Commit	Line	Data
96f1050d RG	1	/*
	2	* Copyright 2004-2009 Analog Devices Inc.
	3	*
	4	* Licensed under the GPL-2 or later.
	5	*/
1394f032 BW	6
	7	#ifndef __ASMBFIN_ELF_H
	8	#define __ASMBFIN_ELF_H
	9
	10	/*
	11	* ELF register definitions..
	12	*/
	13
	14	#include <asm/ptrace.h>
	15	#include <asm/user.h>
	16
	17	/* Processor specific flags for the ELF header e_flags field. */
	18	#define EF_BFIN_PIC 0x00000001 /* -fpic */
	19	#define EF_BFIN_FDPIC 0x00000002 /* -mfdpic */
	20	#define EF_BFIN_CODE_IN_L1 0x00000010 /* --code-in-l1 */
	21	#define EF_BFIN_DATA_IN_L1 0x00000020 /* --data-in-l1 */
262c3825 SZ	22	#define EF_BFIN_CODE_IN_L2 0x00000040 /* --code-in-l2 */
262c3825 SZ	23	#define EF_BFIN_DATA_IN_L2 0x00000080 /* --data-in-l2 */
1394f032	24
e50e2f25	25	#if 1 /* core dumps not supported, but linux/elfcore.h needs these */
1394f032 BW	26	typedef unsigned long elf_greg_t;
1394f032 BW	27
e50e2f25	28	#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
1394f032 BW	29	typedef elf_greg_t elf_gregset_t[ELF_NGREG];
1394f032 BW	30
3b67d91b	31	typedef struct { } elf_fpregset_t;
e50e2f25 MF	32	#endif
e50e2f25 MF	33
1394f032 BW	34	/*
	35	* This is used to ensure we don't load something for the wrong architecture.
	36	*/
	37	#define elf_check_arch(x) ((x)->e_machine == EM_BLACKFIN)
	38
	39	#define elf_check_fdpic(x) ((x)->e_flags & EF_BFIN_FDPIC /* && !((x)->e_flags & EF_FRV_NON_PIC_RELOCS) */)
	40	#define elf_check_const_displacement(x) ((x)->e_flags & EF_BFIN_PIC)
	41
	42	/* EM_BLACKFIN defined in linux/elf.h */
	43
	44	/*
	45	* These are used to set parameters in the core dumps.
	46	*/
	47	#define ELF_CLASS ELFCLASS32
	48	#define ELF_DATA ELFDATA2LSB
	49	#define ELF_ARCH EM_BLACKFIN
	50
	51	#define ELF_PLAT_INIT(_r) _r->p1 = 0
	52
	53	#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, _dynamic_addr) \
	54	do { \
	55	_regs->r7 = 0; \
	56	_regs->p0 = _exec_map_addr; \
	57	_regs->p1 = _interp_map_addr; \
	58	_regs->p2 = _dynamic_addr; \
	59	} while(0)
	60
e50e2f25 MF	61	#if 0
	62	#define CORE_DUMP_USE_REGSET
	63	#endif
1394f032 BW	64	#define ELF_FDPIC_CORE_EFLAGS EF_BFIN_FDPIC
	65	#define ELF_EXEC_PAGESIZE 4096
	66
595d681f MF	67	#define R_BFIN_UNUSED0 0 /* relocation type 0 is not defined */
	68	#define R_BFIN_PCREL5M2 1 /* LSETUP part a */
	69	#define R_BFIN_UNUSED1 2 /* relocation type 2 is not defined */
	70	#define R_BFIN_PCREL10 3 /* type 3, if cc jump <target> */
	71	#define R_BFIN_PCREL12_JUMP 4 /* type 4, jump <target> */
	72	#define R_BFIN_RIMM16 5 /* type 0x5, rN = <target> */
	73	#define R_BFIN_LUIMM16 6 /* # 0x6, preg.l=<target> Load imm 16 to lower half */
	74	#define R_BFIN_HUIMM16 7 /* # 0x7, preg.h=<target> Load imm 16 to upper half */
	75	#define R_BFIN_PCREL12_JUMP_S 8 /* # 0x8 jump.s <target> */
	76	#define R_BFIN_PCREL24_JUMP_X 9 /* # 0x9 jump.x <target> */
	77	#define R_BFIN_PCREL24 10 /* # 0xa call <target> , not expandable */
	78	#define R_BFIN_UNUSEDB 11 /* # 0xb not generated */
	79	#define R_BFIN_UNUSEDC 12 /* # 0xc not used */
	80	#define R_BFIN_PCREL24_JUMP_L 13 /* 0xd jump.l <target> */
	81	#define R_BFIN_PCREL24_CALL_X 14 /* 0xE, call.x <target> if <target> is above 24 bit limit call through P1 */
	82	#define R_BFIN_VAR_EQ_SYMB 15 /* 0xf, linker should treat it same as 0x12 */
	83	#define R_BFIN_BYTE_DATA 16 /* 0x10, .byte var = symbol */
	84	#define R_BFIN_BYTE2_DATA 17 /* 0x11, .byte2 var = symbol */
	85	#define R_BFIN_BYTE4_DATA 18 /* 0x12, .byte4 var = symbol and .var var=symbol */
	86	#define R_BFIN_PCREL11 19 /* 0x13, lsetup part b */
	87	#define R_BFIN_UNUSED14 20 /* 0x14, undefined */
	88	#define R_BFIN_UNUSED15 21 /* not generated by VDSP 3.5 */
1394f032 BW	89
1394f032 BW	90	/* arithmetic relocations */
595d681f MF	91	#define R_BFIN_PUSH 0xE0
	92	#define R_BFIN_CONST 0xE1
	93	#define R_BFIN_ADD 0xE2
	94	#define R_BFIN_SUB 0xE3
	95	#define R_BFIN_MULT 0xE4
	96	#define R_BFIN_DIV 0xE5
	97	#define R_BFIN_MOD 0xE6
	98	#define R_BFIN_LSHIFT 0xE7
	99	#define R_BFIN_RSHIFT 0xE8
	100	#define R_BFIN_AND 0xE9
	101	#define R_BFIN_OR 0xEA
	102	#define R_BFIN_XOR 0xEB
	103	#define R_BFIN_LAND 0xEC
	104	#define R_BFIN_LOR 0xED
	105	#define R_BFIN_LEN 0xEE
	106	#define R_BFIN_NEG 0xEF
	107	#define R_BFIN_COMP 0xF0
	108	#define R_BFIN_PAGE 0xF1
	109	#define R_BFIN_HWPAGE 0xF2
	110	#define R_BFIN_ADDR 0xF3
1394f032 BW	111
	112	/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
	113	use of this is to invoke "./ld.so someprog" to test out a new version of
	114	the loader. We need to make sure that it is out of the way of the program
	115	that it will "exec", and that there is sufficient room for the brk. */
	116
	117	#define ELF_ET_DYN_BASE 0xD0000000UL
	118
	119	#define ELF_CORE_COPY_REGS(pr_reg, regs) \
	120	memcpy((char ) &pr_reg, (char )regs, \
	121	sizeof(struct pt_regs));
	122
	123	/* This yields a mask that user programs can use to figure out what
	124	instruction set this cpu supports. */
	125
	126	#define ELF_HWCAP (0)
	127
	128	/* This yields a string that ld.so will use to load implementation
	129	specific libraries for optimization. This is more specific in
	130	intent than poking at uname or /proc/cpuinfo. */
	131
	132	#define ELF_PLATFORM (NULL)
	133
0b592682	134	#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
1394f032 BW	135
1394f032 BW	136	#endif