diff options
Diffstat (limited to 'include/asm-sparc/a.out.h')
| -rw-r--r-- | include/asm-sparc/a.out.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/include/asm-sparc/a.out.h b/include/asm-sparc/a.out.h new file mode 100644 index 000000000000..e4e83eb0161e --- /dev/null +++ b/include/asm-sparc/a.out.h @@ -0,0 +1,98 @@ +/* $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__ */ |