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- /* $Id: a.out.h,v 1.13 2000/01/09 10:46:53 anton Exp $ */
- #ifndef __SPARC_A_OUT_H__
- #define __SPARC_A_OUT_H__
- #define SPARC_PGSIZE 0x2000 /* Thanks to the sun4 architecture... */
- #define SEGMENT_SIZE SPARC_PGSIZE /* whee... */
- 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 long a_text; /* length of text, in bytes */
- unsigned long a_data; /* length of data, in bytes */
- unsigned long a_bss; /* length of bss, in bytes */
- unsigned long a_syms; /* length of symbol table, in bytes */
- unsigned long a_entry; /* where program begins */
- unsigned long a_trsize;
- unsigned long a_drsize;
- };
- /* 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) (((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) \
- : (_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)
- /*
- * 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 long 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 */
- int r_pad:2; /* <unused> */
- enum reloc_type r_type:5; /* type of relocation to perform */
- long r_addend; /* addend for relocation value */
- };
- #define N_RELOCATION_INFO_DECLARED 1
- #ifdef __KERNEL__
- #include <asm/page.h>
- #define STACK_TOP (PAGE_OFFSET - PAGE_SIZE)
- #endif /* __KERNEL__ */
- #endif /* __SPARC_A_OUT_H__ */
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