#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__ */