/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI__ALPHA_A_OUT_H__
#define _UAPI__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))

#endif /* _UAPI__ALPHA_A_OUT_H__ */