a.out.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:7k
- #ifndef __A_OUT_GNU_H__
- #define __A_OUT_GNU_H__
- #define __GNU_EXEC_MACROS__
- #ifndef __STRUCT_EXEC_OVERRIDE__
- #include <asm/a.out.h>
- #endif /* __STRUCT_EXEC_OVERRIDE__ */
- /* these go in the N_MACHTYPE field */
- enum machine_type {
- #if defined (M_OLDSUN2)
- M__OLDSUN2 = M_OLDSUN2,
- #else
- M_OLDSUN2 = 0,
- #endif
- #if defined (M_68010)
- M__68010 = M_68010,
- #else
- M_68010 = 1,
- #endif
- #if defined (M_68020)
- M__68020 = M_68020,
- #else
- M_68020 = 2,
- #endif
- #if defined (M_SPARC)
- M__SPARC = M_SPARC,
- #else
- M_SPARC = 3,
- #endif
- /* skip a bunch so we don't run into any of sun's numbers */
- M_386 = 100,
- M_MIPS1 = 151, /* MIPS R3000/R3000 binary */
- M_MIPS2 = 152 /* MIPS R6000/R4000 binary */
- };
- #if !defined (N_MAGIC)
- #define N_MAGIC(exec) ((exec).a_info & 0xffff)
- #endif
- #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
- #if !defined (N_BADMAG)
- #define N_BADMAG(x) (N_MAGIC(x) != OMAGIC
- && N_MAGIC(x) != NMAGIC
- && N_MAGIC(x) != ZMAGIC
- && N_MAGIC(x) != QMAGIC)
- #endif
- #define _N_HDROFF(x) (1024 - sizeof (struct exec))
- #if !defined (N_TXTOFF)
- #define N_TXTOFF(x)
- (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) :
- (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec)))
- #endif
- #if !defined (N_DATOFF)
- #define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
- #endif
- #if !defined (N_TRELOFF)
- #define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data)
- #endif
- #if !defined (N_DRELOFF)
- #define N_DRELOFF(x) (N_TRELOFF(x) + N_TRSIZE(x))
- #endif
- #if !defined (N_SYMOFF)
- #define N_SYMOFF(x) (N_DRELOFF(x) + N_DRSIZE(x))
- #endif
- #if !defined (N_STROFF)
- #define N_STROFF(x) (N_SYMOFF(x) + N_SYMSIZE(x))
- #endif
- /* Address of text segment in memory after it is loaded. */
- #if !defined (N_TXTADDR)
- #define N_TXTADDR(x) (N_MAGIC(x) == QMAGIC ? PAGE_SIZE : 0)
- #endif
- /* Address of data segment in memory after it is loaded.
- Note that it is up to you to define SEGMENT_SIZE
- on machines not listed here. */
- #if defined(vax) || defined(hp300) || defined(pyr)
- #define SEGMENT_SIZE page_size
- #endif
- #ifdef sony
- #define SEGMENT_SIZE 0x2000
- #endif /* Sony. */
- #ifdef is68k
- #define SEGMENT_SIZE 0x20000
- #endif
- #if defined(m68k) && defined(PORTAR)
- #define PAGE_SIZE 0x400
- #define SEGMENT_SIZE PAGE_SIZE
- #endif
- #ifdef linux
- #include <asm/page.h>
- #if defined(__i386__) || defined(__mc68000__)
- #define SEGMENT_SIZE 1024
- #else
- #ifndef SEGMENT_SIZE
- #define SEGMENT_SIZE PAGE_SIZE
- #endif
- #endif
- #endif
- #define _N_SEGMENT_ROUND(x) ALIGN(x, SEGMENT_SIZE)
- #define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text)
- #ifndef N_DATADDR
- #define N_DATADDR(x)
- (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x))
- : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
- #endif
- /* Address of bss segment in memory after it is loaded. */
- #if !defined (N_BSSADDR)
- #define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data)
- #endif
- #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. */
- #if !defined (N_UNDF)
- #define N_UNDF 0
- #endif
- #if !defined (N_ABS)
- #define N_ABS 2
- #endif
- #if !defined (N_TEXT)
- #define N_TEXT 4
- #endif
- #if !defined (N_DATA)
- #define N_DATA 6
- #endif
- #if !defined (N_BSS)
- #define N_BSS 8
- #endif
- #if !defined (N_FN)
- #define N_FN 15
- #endif
- #if !defined (N_EXT)
- #define N_EXT 1
- #endif
- #if !defined (N_TYPE)
- #define N_TYPE 036
- #endif
- #if !defined (N_STAB)
- #define N_STAB 0340
- #endif
- /* The following type indicates the definition of a symbol as being
- an indirect reference to another symbol. The other symbol
- appears as an undefined reference, immediately following this symbol.
- Indirection is asymmetrical. The other symbol's value will be used
- to satisfy requests for the indirect symbol, but not vice versa.
- If the other symbol does not have a definition, libraries will
- be searched to find a definition. */
- #define N_INDR 0xa
- /* The following symbols refer to set elements.
- All the N_SET[ATDB] symbols with the same name form one set.
- Space is allocated for the set in the text section, and each set
- element's value is stored into one word of the space.
- The first word of the space is the length of the set (number of elements).
- The address of the set is made into an N_SETV symbol
- whose name is the same as the name of the set.
- This symbol acts like a N_DATA global symbol
- in that it can satisfy undefined external references. */
- /* These appear as input to LD, in a .o file. */
- #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 */
- /* This is output from LD. */
- #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
- {
- /* Address (within segment) to be relocated. */
- int r_address;
- /* The meaning of r_symbolnum depends on r_extern. */
- unsigned int r_symbolnum:24;
- /* Nonzero means value is a pc-relative offset
- and it should be relocated for changes in its own address
- as well as for changes in the symbol or section specified. */
- unsigned int r_pcrel:1;
- /* Length (as exponent of 2) of the field to be relocated.
- Thus, a value of 2 indicates 1<<2 bytes. */
- unsigned int r_length:2;
- /* 1 => relocate with value of symbol.
- r_symbolnum is the index of the symbol
- in file's the symbol table.
- 0 => relocate with the address of a segment.
- r_symbolnum is N_TEXT, N_DATA, N_BSS or N_ABS
- (the N_EXT bit may be set also, but signifies nothing). */
- unsigned int r_extern:1;
- /* Four bits that aren't used, but when writing an object file
- it is desirable to clear them. */
- #ifdef NS32K
- unsigned r_bsr:1;
- unsigned r_disp:1;
- unsigned r_pad:2;
- #else
- unsigned int r_pad:4;
- #endif
- };
- #endif /* no N_RELOCATION_INFO_DECLARED. */
- #endif /* __A_OUT_GNU_H__ */