a.out.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:4k
- #ifndef __A_OUT_GNU_H__
- #define __A_OUT_GNU_H__
- #include <bits/a.out.h>
- #define __GNU_EXEC_MACROS__
- struct exec
- {
- unsigned long a_info; /* Use macros N_MAGIC, etc for access. */
- unsigned int a_text; /* Length of text, in bytes. */
- unsigned int a_data; /* Length of data, in bytes. */
- unsigned int a_bss; /* Length of uninitialized data area for file, in bytes. */
- unsigned int a_syms; /* Length of symbol table data in file, in bytes. */
- unsigned int a_entry; /* Start address. */
- unsigned int a_trsize;/* Length of relocation info for text, in bytes. */
- unsigned int a_drsize;/* Length of relocation info for data, in bytes. */
- };
- enum machine_type
- {
- M_OLDSUN2 = 0,
- M_68010 = 1,
- M_68020 = 2,
- M_SPARC = 3,
- M_386 = 100,
- M_MIPS1 = 151,
- M_MIPS2 = 152
- };
- #define N_MAGIC(exec) ((exec).a_info & 0xffff)
- #define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff))
- #define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff)
- #define N_SET_INFO(exec, magic, type, flags)
- ((exec).a_info = ((magic) & 0xffff)
- | (((int)(type) & 0xff) << 16)
- | (((flags) & 0xff) << 24))
- #define N_SET_MAGIC(exec, magic)
- ((exec).a_info = ((exec).a_info & 0xffff0000) | ((magic) & 0xffff))
- #define N_SET_MACHTYPE(exec, machtype)
- ((exec).a_info =
- ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16))
- #define N_SET_FLAGS(exec, flags)
- ((exec).a_info =
- ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24))
- /* Code indicating object file or impure executable. */
- #define OMAGIC 0407
- /* Code indicating pure executable. */
- #define NMAGIC 0410
- /* Code indicating demand-paged executable. */
- #define ZMAGIC 0413
- /* This indicates a demand-paged executable with the header in the text.
- The first page is unmapped to help trap NULL pointer references. */
- #define QMAGIC 0314
- /* Code indicating core file. */
- #define CMAGIC 0421
- #define N_TRSIZE(a) ((a).a_trsize)
- #define N_DRSIZE(a) ((a).a_drsize)
- #define N_SYMSIZE(a) ((a).a_syms)
- #define N_BADMAG(x)
- (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC
- && N_MAGIC(x) != ZMAGIC && N_MAGIC(x) != QMAGIC)
- #define _N_HDROFF(x) (1024 - sizeof (struct exec))
- #define N_TXTOFF(x)
- (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) :
- (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec)))
- #define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
- #define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data)
- #define N_DRELOFF(x) (N_TRELOFF(x) + N_TRSIZE(x))
- #define N_SYMOFF(x) (N_DRELOFF(x) + N_DRSIZE(x))
- #define N_STROFF(x) (N_SYMOFF(x) + N_SYMSIZE(x))
- /* Address of text segment in memory after it is loaded. */
- #define N_TXTADDR(x) (N_MAGIC(x) == QMAGIC ? 4096 : 0)
- /* Address of data segment in memory after it is loaded. */
- #define SEGMENT_SIZE 1024
- #define _N_SEGMENT_ROUND(x) (((x) + SEGMENT_SIZE - 1) & ~(SEGMENT_SIZE - 1))
- #define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text)
- #define N_DATADDR(x)
- (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x))
- : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
- #define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data)
- #if !defined (N_NLIST_DECLARED)
- struct nlist
- {
- union
- {
- char *n_name;
- struct nlist *n_next;
- long n_strx;
- } n_un;
- unsigned char n_type;
- char n_other;
- short n_desc;
- unsigned long n_value;
- };
- #endif /* no N_NLIST_DECLARED. */
- #define N_UNDF 0
- #define N_ABS 2
- #define N_TEXT 4
- #define N_DATA 6
- #define N_BSS 8
- #define N_FN 15
- #define N_EXT 1
- #define N_TYPE 036
- #define N_STAB 0340
- #define N_INDR 0xa
- #define N_SETA 0x14 /* Absolute set element symbol. */
- #define N_SETT 0x16 /* Text set element symbol. */
- #define N_SETD 0x18 /* Data set element symbol. */
- #define N_SETB 0x1A /* Bss set element symbol. */
- #define N_SETV 0x1C /* Pointer to set vector in data area. */
- #if !defined (N_RELOCATION_INFO_DECLARED)
- /* This structure describes a single relocation to be performed.
- The text-relocation section of the file is a vector of these structures,
- all of which apply to the text section.
- Likewise, the data-relocation section applies to the data section. */
- struct relocation_info
- {
- int r_address;
- unsigned int r_symbolnum:24;
- unsigned int r_pcrel:1;
- unsigned int r_length:2;
- unsigned int r_extern:1;
- unsigned int r_pad:4;
- };
- #endif /* no N_RELOCATION_INFO_DECLARED. */
- #endif /* __A_OUT_GNU_H__ */