a.out.h

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#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__ */