[linux.git] / include / asm-sparc64 / a.out.h

/* $Id: a.out.h,v 1.8 2002/02/09 19:49:31 davem Exp $ */
#ifndef __SPARC64_A_OUT_H__
#define __SPARC64_A_OUT_H__

#define SPARC_PGSIZE    0x2000        /* Thanks to the sun4 architecture... */
#define SEGMENT_SIZE    SPARC_PGSIZE  /* whee... */

#ifndef __ASSEMBLY__

struct exec {
	unsigned char a_dynamic:1;      /* A __DYNAMIC is in this image */
	unsigned char a_toolversion:7;
	unsigned char a_machtype;
	unsigned short a_info;
	unsigned int a_text;		/* length of text, in bytes */
	unsigned int a_data;		/* length of data, in bytes */
	unsigned int a_bss;		/* length of bss, in bytes */
	unsigned int a_syms;		/* length of symbol table, in bytes */
	unsigned int a_entry;		/* where program begins */
	unsigned int a_trsize;
	unsigned int a_drsize;
};

#endif /* !__ASSEMBLY__ */

/* Where in the file does the text information begin? */
#define N_TXTOFF(x)     (N_MAGIC(x) == ZMAGIC ? 0 : sizeof (struct exec))

/* Where do the Symbols start? */
#define N_SYMOFF(x)     (N_TXTOFF(x) + (x).a_text +   \
                         (x).a_data + (x).a_trsize +  \
                         (x).a_drsize)

/* Where does text segment go in memory after being loaded? */
#define N_TXTADDR(x)    (unsigned long)(((N_MAGIC(x) == ZMAGIC) &&      \
	                 ((x).a_entry < SPARC_PGSIZE)) ?   		\
                          0 : SPARC_PGSIZE)

/* And same for the data segment.. */
#define N_DATADDR(x) (N_MAGIC(x)==OMAGIC ?         \
                      (N_TXTADDR(x) + (x).a_text)  \
                       : (unsigned long)(_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))

#define N_TRSIZE(a)	((a).a_trsize)
#define N_DRSIZE(a)	((a).a_drsize)
#define N_SYMSIZE(a)	((a).a_syms)

#ifndef __ASSEMBLY__

/*
 * Sparc relocation types
 */
enum reloc_type
{
	RELOC_8,
	RELOC_16,
	RELOC_32,	/* simplest relocs */
	RELOC_DISP8,
	RELOC_DISP16,
	RELOC_DISP32,	/* Disp's (pc-rel) */
	RELOC_WDISP30,
	RELOC_WDISP22,  /* SR word disp's */
	RELOC_HI22,
	RELOC_22,	/* SR 22-bit relocs */
	RELOC_13,
	RELOC_LO10,	/* SR 13&10-bit relocs */
	RELOC_SFA_BASE,
	RELOC_SFA_OFF13, /* SR S.F.A. relocs */
	RELOC_BASE10,
	RELOC_BASE13,
	RELOC_BASE22,	/* base_relative pic */
	RELOC_PC10,
	RELOC_PC22,	/* special pc-rel pic */
	RELOC_JMP_TBL,	/* jmp_tbl_rel in pic */
	RELOC_SEGOFF16,	/* ShLib offset-in-seg */
	RELOC_GLOB_DAT,
	RELOC_JMP_SLOT,
	RELOC_RELATIVE 	/* rtld relocs */
};

/*
 * Format of a relocation datum.
 */
struct relocation_info /* used when header.a_machtype == M_SPARC */
{
        unsigned int    r_address;  /* relocation addr */
        unsigned int    r_index:24; /* segment index or symbol index */
        unsigned int    r_extern:1; /* if F, r_index==SEG#; if T, SYM idx */
        unsigned int    r_pad:2;    /* <unused> */
        enum reloc_type r_type:5;   /* type of relocation to perform */
        int             r_addend;   /* addend for relocation value */
};

#define N_RELOCATION_INFO_DECLARED 1

#ifdef __KERNEL__

#define STACK_TOP32	((1UL << 32UL) - PAGE_SIZE)
#define STACK_TOP64	(0x0000080000000000UL - (1UL << 32UL))

#define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
		   STACK_TOP32 : STACK_TOP64)

#endif

#endif /* !(__ASSEMBLY__) */

#endif /* !(__SPARC64_A_OUT_H__) */
Commit	Line	Data
1da177e4 LT	1	/* $Id: a.out.h,v 1.8 2002/02/09 19:49:31 davem Exp $ */
	2	#ifndef __SPARC64_A_OUT_H__
	3	#define __SPARC64_A_OUT_H__
	4
	5	#define SPARC_PGSIZE 0x2000 /* Thanks to the sun4 architecture... */
	6	#define SEGMENT_SIZE SPARC_PGSIZE /* whee... */
	7
	8	#ifndef __ASSEMBLY__
	9
	10	struct exec {
	11	unsigned char a_dynamic:1; /* A __DYNAMIC is in this image */
	12	unsigned char a_toolversion:7;
	13	unsigned char a_machtype;
	14	unsigned short a_info;
	15	unsigned int a_text; /* length of text, in bytes */
	16	unsigned int a_data; /* length of data, in bytes */
	17	unsigned int a_bss; /* length of bss, in bytes */
	18	unsigned int a_syms; /* length of symbol table, in bytes */
	19	unsigned int a_entry; /* where program begins */
	20	unsigned int a_trsize;
	21	unsigned int a_drsize;
	22	};
	23
	24	#endif /* !__ASSEMBLY__ */
	25
	26	/* Where in the file does the text information begin? */
	27	#define N_TXTOFF(x) (N_MAGIC(x) == ZMAGIC ? 0 : sizeof (struct exec))
	28
	29	/* Where do the Symbols start? */
	30	#define N_SYMOFF(x) (N_TXTOFF(x) + (x).a_text + \
	31	(x).a_data + (x).a_trsize + \
	32	(x).a_drsize)
	33
	34	/* Where does text segment go in memory after being loaded? */
	35	#define N_TXTADDR(x) (unsigned long)(((N_MAGIC(x) == ZMAGIC) && \
	36	((x).a_entry < SPARC_PGSIZE)) ? \
	37	0 : SPARC_PGSIZE)
	38
	39	/* And same for the data segment.. */
	40	#define N_DATADDR(x) (N_MAGIC(x)==OMAGIC ? \
	41	(N_TXTADDR(x) + (x).a_text) \
	42	: (unsigned long)(_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
	43
	44	#define N_TRSIZE(a) ((a).a_trsize)
	45	#define N_DRSIZE(a) ((a).a_drsize)
	46	#define N_SYMSIZE(a) ((a).a_syms)
	47
	48	#ifndef __ASSEMBLY__
	49
	50	/*
	51	* Sparc relocation types
	52	*/
	53	enum reloc_type
	54	{
	55	RELOC_8,
	56	RELOC_16,
	57	RELOC_32, /* simplest relocs */
	58	RELOC_DISP8,
	59	RELOC_DISP16,
	60	RELOC_DISP32, /* Disp's (pc-rel) */
	61	RELOC_WDISP30,
	62	RELOC_WDISP22, /* SR word disp's */
	63	RELOC_HI22,
	64	RELOC_22, /* SR 22-bit relocs */
65	RELOC_13,
66	RELOC_LO10, /* SR 13&10-bit relocs */
67	RELOC_SFA_BASE,
68	RELOC_SFA_OFF13, /* SR S.F.A. relocs */
69	RELOC_BASE10,
70	RELOC_BASE13,
71	RELOC_BASE22, /* base_relative pic */
72	RELOC_PC10,
73	RELOC_PC22, /* special pc-rel pic */
74	RELOC_JMP_TBL, /* jmp_tbl_rel in pic */
75	RELOC_SEGOFF16, /* ShLib offset-in-seg */
76	RELOC_GLOB_DAT,
77	RELOC_JMP_SLOT,
78	RELOC_RELATIVE /* rtld relocs */
79	};
80
81	/*
82	* Format of a relocation datum.
83	*/
84	struct relocation_info /* used when header.a_machtype == M_SPARC */
85	{
86	unsigned int r_address; /* relocation addr */
87	unsigned int r_index:24; /* segment index or symbol index */
88	unsigned int r_extern:1; /* if F, r_index==SEG#; if T, SYM idx */
d80f0a4b	89	unsigned int r_pad:2; /* <unused> */
1da177e4 LT	90	enum reloc_type r_type:5; /* type of relocation to perform */
	91	int r_addend; /* addend for relocation value */
	92	};
	93
	94	#define N_RELOCATION_INFO_DECLARED 1
	95
	96	#ifdef __KERNEL__
	97
d61e16df DM	98	#define STACK_TOP32 ((1UL << 32UL) - PAGE_SIZE)
	99	#define STACK_TOP64 (0x0000080000000000UL - (1UL << 32UL))
	100
8bcd1741	101	#define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
d61e16df	102	STACK_TOP32 : STACK_TOP64)
1da177e4 LT	103
	104	#endif
	105
	106	#endif /* !(__ASSEMBLY__) */
	107
	108	#endif /* !(__SPARC64_A_OUT_H__) */