/* Special version of <a.out.h> for use under HP-UX.
   Copyright (C) 1988-2017 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

struct hp300hpux_exec_bytes
{
  unsigned char e_info[4];   /* a_machtype/a_magic */
  unsigned char e_spare1[4];
  unsigned char e_spare2[4];
  unsigned char e_text[4];   /* length of text, in bytes */
  unsigned char e_data[4];   /* length of data, in bytes */
  unsigned char e_bss[4];    /* length of uninitialized data area , in bytes */
  unsigned char e_trsize[4]; /* length of relocation info for text, in bytes*/
  unsigned char e_drsize[4]; /* length of relocation info for data, in bytes*/
  unsigned char e_passize[4];/* HP = pascal interface size */
  unsigned char e_syms[4];   /* HP = symbol table size */
  unsigned char e_spare5[4]; /* HP = debug name table size */
  unsigned char e_entry[4];  /* start address */
  unsigned char e_spare6[4]; /* HP = source line table size */
  unsigned char e_supsize[4];/* HP = value table size */
  unsigned char e_drelocs[4];
  unsigned char e_extension[4]; /* file offset of extension */
};
#define	EXEC_BYTES_SIZE	64

struct hp300hpux_nlist_bytes
{
  unsigned char e_value[4];
  unsigned char e_type[1];
  unsigned char e_length[1];	/* Length of ascii symbol name.  */
  unsigned char e_almod[2];	/* Alignment mod.  */
  unsigned char e_shlib[2];	/* Info about dynamic linking.  */
};
#define EXTERNAL_NLIST_SIZE 10

struct hp300hpux_reloc
{
  unsigned char r_address[4];/* offset of data to relocate */
  unsigned char r_index[2];  /* symbol table index of symbol         */
  unsigned char r_type[1];   /* relocation type                      */
  unsigned char r_length[1]; /* length of item to reloc              */
};

struct hp300hpux_header_extension
{
  unsigned char e_syms[4];
  unsigned char unique_headers[12*4];
  unsigned char e_header[2];   /* Type of header.  */
  unsigned char e_version[2];  /* Version.  */
  unsigned char e_size[4];     /* Bytes following.  */
  unsigned char e_extension[4];/* File offset of next extension.  */
};
#define EXTERNAL_EXTENSION_HEADER_SIZE (16*4)

/* HPUX separates object files (0x106) and impure executables (0x107)
   but the bfd code does not distinguish between them. Since we want to
   read hpux .o files, we add an special define and use it below in
   offset and address calculations.  */

#define HPUX_DOT_O_MAGIC 0x106
#define OMAGIC 0x107       /* Object file or impure executable.  */
#define NMAGIC 0x108       /* Code indicating pure executable.   */
#define ZMAGIC 0x10B       /* Demand-paged executable.           */

#define N_HEADER_IN_TEXT(x) 0

#if 0 /* libaout.h only uses the lower 8 bits.  */
#define HP98x6_ID 0x20A
#define HP9000S200_ID 0x20C
#endif
#define HP98x6_ID 0x0A
#define HP9000S200_ID 0x0C

#define N_BADMAG(x) ((_N_BADMAG (x)) || (_N_BADMACH (x)))

#define N_DATADDR(x) \
  ((N_MAGIC (x) == OMAGIC || N_MAGIC (x) == HPUX_DOT_O_MAGIC)		\
   ? (N_TXTADDR (x) + N_TXTSIZE (x))					\
   : (N_SEGSIZE (x) + ((N_TXTADDR (x) + N_TXTSIZE (x) - 1)		\
		       & ~ (bfd_vma) (N_SEGSIZE (x) - 1))))

#define _N_BADMACH(x) \
  (((N_MACHTYPE (x)) != HP9000S200_ID) && ((N_MACHTYPE (x)) != HP98x6_ID))

#define _N_BADMAG(x)	  (N_MAGIC(x) != HPUX_DOT_O_MAGIC \
                        && N_MAGIC(x) != OMAGIC		\
			&& N_MAGIC(x) != NMAGIC		\
  			&& N_MAGIC(x) != ZMAGIC )

#undef _N_HDROFF
#define _N_HDROFF(x) (SEGMENT_SIZE - (sizeof (struct exec)))

#undef N_DATOFF
#undef N_PASOFF
#undef N_SYMOFF
#undef N_SUPOFF
#undef N_TRELOFF
#undef N_DRELOFF
#undef N_STROFF

#define N_DATOFF(x)	( N_TXTOFF(x) + N_TXTSIZE(x) )
#define N_PASOFF(x)     ( N_DATOFF(x) + (x)->a_data)
#define N_SYMOFF(x)	( N_PASOFF(x)   /* + (x)->a_passize*/ )
#define N_SUPOFF(x)     ( N_SYMOFF(x) + (x)->a_syms )
#define N_TRELOFF(x)	( N_SUPOFF(x)    /* + (x)->a_supsize*/ )
#define N_DRELOFF(x)	( N_TRELOFF(x) + (x)->a_trsize )
#define N_EXTHOFF(x)    ( N_DRELOFF(x)   /*  + (x)->a_drsize */)
#define N_STROFF(x)	( 0 /* no string table */ )

/* Use these when the file has gnu symbol tables.  */
#define N_GNU_TRELOFF(x) (N_DATOFF(x) + (x)->a_data)
#define N_GNU_DRELOFF(x) (N_GNU_TRELOFF(x) + (x)->a_trsize)
#define N_GNU_SYMOFF(x)  (N_GNU_DRELOFF(x) + (x)->a_drsize)

#define TARGET_PAGE_SIZE 0x1000
#define SEGMENT_SIZE 0x1000
#define TEXT_START_ADDR 0