a.out.h ( File view )

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			/* The <a.out> header file describes the format of executable files. */

#ifndef _AOUT_H
#define _AOUT_H

struct	exec {
			/* a.out header */
  unsigned char	a_magic[2];	/* magic number */
  unsigned char	a_flags;	/* flags, see below */
  unsigned char	a_cpu;		/* cpu id */
  unsigned char	a_hdrlen;	/* length of header */
  unsigned char	a_unused;	/* reserved for future use */
  unsigned short a_version;	/* version stamp (not used at present) */
  long		a_text;		/* size of text segement in bytes */
  long		a_data;		/* size of data segment in bytes */
  long		a_bss;		/* size of bss segment in bytes */
  long		a_entry;	/* entry point */
  long		a_total;	/* total memory allocated */
  long		a_syms;		/* size of symbol table */

  /* SHORT FORM ENDS HERE */
  long		a_trsize;	/* text relocation size */
  long		a_drsize;	/* data relocation size */
  long		a_tbase;	/* text relocation base */
  long		a_dbase;	/* data relocation base */

};

#define A_MAGIC0      (unsigned char) 0x01
#define A_MAGIC1      (unsigned char) 0x03
#define BADMAG(X)     ((X).a_magic[0] != A_MAGIC0 ||(X).a_magic[1] != A_MAGIC1)

/* CPU Id of TARGET machine (byte order coded in low order two bits) */
#define A_NONE	0x00	/* unknown */
#define A_I8086	0x04	/* intel i8086/8088 */
#define A_M68K	0x0B	/* motorola m68000 */
#define A_NS16K	0x0C	/* national semiconductor 16032 */
#define A_I80386 0x10	/* intel i80386 */
#define A_SPARC	0x17	/* Sun SPARC */

#define A_BLR(cputype)	((cputype&0x01)!=0) /* TRUE if bytes left-to-right */
#define A_WLR(cputype)	((cputype&0x02)!=0) /* TRUE if words left-to-right */

/* Flags. */
#define A_UZP	0x01	/* unmapped zero page (pages) */
#define A_PAL	0x02	/* page aligned executable */
#define A_NSYM	0x04	/* new style symbol table */
#define A_EXEC	0x10	/* executable */
#define A_SEP	0x20	/* separate I/D */
#define A_PURE	0x40	/* pure text */		/* not used */
#define A_TOVLY	0x80	/* text overlay */	/* not used */

/* Offsets of various things. */
#define A_MINHDR	32
#define	A_TEXTPOS(X)	((long)(X).a_hdrlen)
#define A_DATAPOS(X)	(A_TEXTPOS(X) + (X).a_text)
#define	A_HASRELS(X)	((X).a_hdrlen > (unsigned char) A_MINHDR)
#define A_HASEXT(X)	((X).a_hdrlen > (unsigned char) (A_MINHDR +  8))
#define A_HASLNS(X)	((X).a_hdrlen > (unsigned char) (A_MINHDR + 16))
#define A_HASTOFF(X)	((X).a_hdrlen > (unsigned char) (A_MINHDR + 24))
#define A_TRELPOS(X)	(A_DATAPOS(X) + (X).a_data)
#define A_DRELPOS(X)	(A_TRELPOS(X) + (X).a_trsize)
#define A_SYMPOS(X)	(A_TRELPOS(X) + (A_HASRELS(X) ? \
  			((X).a_trsize + (X).a_drsize) : 0))

struct reloc {

  long r_vaddr;			/* virtual address of reference */
  unsigned short r_symndx;	/* internal segnum or extern symbol num */
  unsi
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linux0.00 B0%|04-10-07
boot0.00 B04-10-07|15:01
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head.s13.22 kB08-01-04|21:38
setup.s12.42 kB08-01-04|21:38
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bitmap.c8.46 kB02-09-04|13:12
block_dev.c3.95 kB02-09-04|13:12
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char_dev.c4.09 kB02-09-04|13:12
exec.c18.90 kB02-09-04|13:12
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truncate.c2.46 kB02-09-04|13:12
include0.00 B04-10-07|15:01
a.out.h8.22 kB02-09-04|13:14
asm0.00 B04-10-07|15:01
io.h772.00 B02-09-04|13:14
memory.h1.03 kB08-01-04|22:13
segment.h2.50 kB02-09-04|13:14
system.h4.08 kB02-09-04|13:14
const.h589.00 B02-09-04|13:14
ctype.h1.68 kB02-09-04|13:14
errno.h2.30 kB02-09-04|13:14
fcntl.h3.30 kB02-09-04|13:14
linux0.00 B04-10-07|15:01
config.h2.16 kB02-09-04|13:14
fs.h9.72 kB02-09-04|13:14
hdreg.h2.94 kB02-09-04|13:14
head.h760.00 B02-09-04|13:14
kernel.h1.44 kB02-09-04|13:14
mm.h473.00 B02-09-04|13:14
sched.h13.25 kB02-09-04|13:14
sys.h5.41 kB02-09-04|13:14
tty.h3.93 kB02-09-04|13:14
signal.h4.01 kB02-09-04|13:14
stdarg.h1.77 kB02-09-04|13:14
stddef.h378.00 B02-09-04|13:14
string.h21.75 kB02-09-04|13:14
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utsname.h423.00 B02-09-04|13:14
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termios.h13.58 kB02-09-04|13:14
time.h1.81 kB02-09-04|13:14
unistd.h9.21 kB02-09-04|13:14
utime.h392.00 B02-09-04|13:14
init0.00 B04-10-07|15:01
main.c12.52 kB02-09-04|13:12
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asm.s5.10 kB08-01-04|22:48
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floppy.c23.49 kB02-09-04|13:12
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tty_io.c18.40 kB02-09-04|13:12
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vsprintf.c9.96 kB02-09-04|13:12
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ctype.c1.72 kB02-09-04|13:12
dup.c401.00 B02-09-04|13:12
errno.c66.00 B02-09-04|13:12
execve.c607.00 B02-09-04|13:12
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open.c1.22 kB02-09-04|13:12
setsid.c382.00 B02-09-04|13:12
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wait.c774.00 B02-09-04|13:12
write.c545.00 B02-09-04|13:12
_exit.c616.00 B02-09-04|13:12
Makefile8.58 kB08-01-04|22:21
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Makefile2.91 kB08-01-04|22:34
memory.c25.10 kB02-09-04|13:12
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