111 lines
3.1 KiB
C
111 lines
3.1 KiB
C
/* $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)
|
|
|
|
#define STACK_TOP_MAX STACK_TOP64
|
|
|
|
#endif
|
|
|
|
#endif /* !(__ASSEMBLY__) */
|
|
|
|
#endif /* !(__SPARC64_A_OUT_H__) */
|