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Sourcecode: linux-2.6 version File versions

a.out.h

#ifndef __ALPHA_A_OUT_H__
#define __ALPHA_A_OUT_H__

#include <linux/types.h>

/*
 * OSF/1 ECOFF header structs.  ECOFF files consist of:
 *    - a file header (struct filehdr),
 *    - an a.out header (struct aouthdr),
 *    - one or more section headers (struct scnhdr). 
 *      The filhdr's "f_nscns" field contains the
 *      number of section headers.
 */

struct filehdr
{
      /* OSF/1 "file" header */
      __u16 f_magic, f_nscns;
      __u32 f_timdat;
      __u64 f_symptr;
      __u32 f_nsyms;
      __u16 f_opthdr, f_flags;
};

struct aouthdr
{
      __u64 info;       /* after that it looks quite normal.. */
      __u64 tsize;
      __u64 dsize;
      __u64 bsize;
      __u64 entry;
      __u64 text_start; /* with a few additions that actually make sense */
      __u64 data_start;
      __u64 bss_start;
      __u32 gprmask, fprmask; /* bitmask of general & floating point regs used in binary */
      __u64 gpvalue;
};

struct scnhdr
{
      char  s_name[8];
      __u64 s_paddr;
      __u64 s_vaddr;
      __u64 s_size;
      __u64 s_scnptr;
      __u64 s_relptr;
      __u64 s_lnnoptr;
      __u16 s_nreloc;
      __u16 s_nlnno;
      __u32 s_flags;
};

struct exec
{
      /* OSF/1 "file" header */
      struct filehdr          fh;
      struct aouthdr          ah;
};

/*
 * Define's so that the kernel exec code can access the a.out header
 * fields...
 */
#define     a_info            ah.info
#define     a_text            ah.tsize
#define a_data          ah.dsize
#define a_bss           ah.bsize
#define a_entry         ah.entry
#define a_textstart     ah.text_start
#define     a_datastart ah.data_start
#define     a_bssstart  ah.bss_start
#define     a_gprmask   ah.gprmask
#define a_fprmask ah.fprmask
#define a_gpvalue ah.gpvalue

#define N_TXTADDR(x) ((x).a_textstart)
#define N_DATADDR(x) ((x).a_datastart)
#define N_BSSADDR(x) ((x).a_bssstart)
#define N_DRSIZE(x) 0
#define N_TRSIZE(x) 0
#define N_SYMSIZE(x) 0

#define AOUTHSZ         sizeof(struct aouthdr)
#define SCNHSZ          sizeof(struct scnhdr)
#define SCNROUND  16

#define N_TXTOFF(x) \
  ((long) N_MAGIC(x) == ZMAGIC ? 0 : \
   (sizeof(struct exec) + (x).fh.f_nscns*SCNHSZ + SCNROUND - 1) & ~(SCNROUND - 1))

#ifdef __KERNEL__

/* Assume that start addresses below 4G belong to a TASO application.
   Unfortunately, there is no proper bit in the exec header to check.
   Worse, we have to notice the start address before swapping to use
   /sbin/loader, which of course is _not_ a TASO application.  */
#define SET_AOUT_PERSONALITY(BFPM, EX) \
      set_personality (((BFPM->taso || EX.ah.entry < 0x100000000L \
                     ? ADDR_LIMIT_32BIT : 0) | PER_OSF4))

#endif /* __KERNEL__ */
#endif /* __A_OUT_GNU_H__ */

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