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/* external.h  -- External COFF structures

   Copyright (C) 2001-2015 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.  */

#ifndef COFF_EXTERNAL_H

#define COFF_EXTERNAL_H

#ifndef DO_NOT_DEFINE_FILHDR

/********************** FILE HEADER **********************/

struct external_filehdr

  {

    char f_magic[2];	/* magic number			*/

    char f_nscns[2];	/* number of sections		*/

    char f_timdat[4];	/* time & date stamp		*/

    char f_symptr[4];	/* file pointer to symtab	*/

    char f_nsyms[4];	/* number of symtab entries	*/

    char f_opthdr[2];	/* sizeof(optional hdr)		*/

    char f_flags[2];	/* flags			*/

  };

#define	FILHDR	struct external_filehdr

#define	FILHSZ	20

#endif

#ifndef DO_NOT_DEFINE_AOUTHDR

/********************** AOUT "OPTIONAL HEADER" **********************/

typedef struct external_aouthdr

  {

    char magic[2];	/* type of file				*/

    char vstamp[2];	/* version stamp			*/

    char tsize[4];	/* text size in bytes, padded to FW bdry*/

    char dsize[4];	/* initialized data "  "		*/

    char bsize[4];	/* uninitialized data "   "		*/

    char entry[4];	/* entry pt.				*/

    char text_start[4];	/* base of text used for this file 	*/

    char data_start[4];	/* base of data used for this file 	*/

  } ATTRIBUTE_PACKED

AOUTHDR;

#define AOUTHDRSZ 28

#define AOUTSZ 28

typedef struct external_aouthdr64

{

  char magic[2];	/* Type of file.			*/

  char vstamp[2];	/* Version stamp.			*/

  char tsize[4];	/* Text size in bytes, padded to FW bdry*/

  char dsize[4];	/* Initialized data "  ".		*/

  char bsize[4];	/* Uninitialized data "   ".		*/

  char entry[4];	/* Entry pt.				*/

  char text_start[4];	/* Base of text used for this file. 	*/

}

AOUTHDR64;

#define AOUTHDRSZ64	24

#endif /* not DO_NOT_DEFINE_AOUTHDR */

#ifndef DO_NOT_DEFINE_SCNHDR

/********************** SECTION HEADER **********************/

struct external_scnhdr

  {

    char s_name[8];	/* section name				*/

    char s_paddr[4];	/* physical address, aliased s_nlib 	*/

    char s_vaddr[4];	/* virtual address			*/

    char s_size[4];	/* section size				*/

    char s_scnptr[4];	/* file ptr to raw data for section 	*/

    char s_relptr[4];	/* file ptr to relocation		*/

    char s_lnnoptr[4];	/* file ptr to line numbers		*/

    char s_nreloc[2];	/* number of relocation entries		*/

    char s_nlnno[2];	/* number of line number entries	*/

    char s_flags[4];	/* flags				*/

  };

#define	SCNHDR	struct external_scnhdr

#define	SCNHSZ	40

/* Names of "special" sections.  */

#define _TEXT	 ".text"

#define _DATA	 ".data"

#define _BSS	 ".bss"

#define _COMMENT ".comment"

#define _LIB     ".lib"

#endif /* not DO_NOT_DEFINE_SCNHDR */

#ifndef DO_NOT_DEFINE_LINENO

/********************** LINE NUMBERS **********************/

#ifndef L_LNNO_SIZE

#error  L_LNNO_SIZE needs to be defined

#endif

/* 1 line number entry for every "breakpointable" source line in a section.

   Line numbers are grouped on a per function basis; first entry in a function

   grouping will have l_lnno = 0 and in place of physical address will be the

   symbol table index of the function name.  */

struct external_lineno

{

  union

  {

    char l_symndx[4];	/* function name symbol index, iff l_lnno == 0*/

    char l_paddr[4];	/* (physical) address of line number	*/

  } l_addr;

  char l_lnno[L_LNNO_SIZE];	/* line number		*/

};

#define	LINENO	struct external_lineno

#define	LINESZ	(4 + L_LNNO_SIZE)

#if L_LNNO_SIZE == 4

#define GET_LINENO_LNNO(abfd, ext)      H_GET_32 (abfd,      (ext->l_lnno))

#define PUT_LINENO_LNNO(abfd, val, ext) H_PUT_32 (abfd, val, (ext->l_lnno))

#endif

#if L_LNNO_SIZE == 2

#define GET_LINENO_LNNO(abfd, ext)      H_GET_16 (abfd,      (ext->l_lnno))

#define PUT_LINENO_LNNO(abfd, val, ext) H_PUT_16 (abfd, val, (ext->l_lnno))

#endif

#endif /* not DO_NOT_DEFINE_LINENO */

#ifndef DO_NOT_DEFINE_SYMENT

/********************** SYMBOLS **********************/

#define E_SYMNMLEN	8	/* # characters in a symbol name	*/

#ifndef E_FILNMLEN

#define E_FILNMLEN	14

#endif

#define E_DIMNUM	4	/* # array dimensions in auxiliary entry */

struct external_syment

{

  union

  {

    char e_name[E_SYMNMLEN];

    struct

    {

      char e_zeroes[4];

      char e_offset[4];

    } e;

  } e;

  char e_value[4];

  char e_scnum[2];

  char e_type[2];

  char e_sclass[1];

  char e_numaux[1];

} ATTRIBUTE_PACKED ;

#define	SYMENT	struct external_syment

#define	SYMESZ	18

#ifndef N_BTMASK

#define N_BTMASK	0xf

#endif

#ifndef N_TMASK

#define N_TMASK		0x30

#endif

#ifndef N_BTSHFT

#define N_BTSHFT	4

#endif

#ifndef N_TSHIFT

#define N_TSHIFT	2

#endif

#endif /* not DO_NOT_DEFINE_SYMENT */

#ifndef DO_NOT_DEFINE_AUXENT

union external_auxent

{

  struct

  {

    char x_tagndx[4];		/* str, un, or enum tag indx */

    union

    {

      struct

      {

	char  x_lnno[2]; /* declaration line number */

	char  x_size[2]; /* str/union/array size */

      } x_lnsz;

      char x_fsize[4];	/* size of function */

    } x_misc;

    union

    {

      struct 		/* if ISFCN, tag, or .bb */

      {

	char x_lnnoptr[4];	/* ptr to fcn line # */

	char x_endndx[4];	/* entry ndx past block end */

      } x_fcn;

      struct 		/* if ISARY, up to 4 dimen. */

      {

	char x_dimen[E_DIMNUM][2];

      } x_ary;

    } x_fcnary;

    char x_tvndx[2];	/* tv index */

  } x_sym;

  union

  {

    char x_fname[E_FILNMLEN];

    struct

    {

      char x_zeroes[4];

      char x_offset[4];

    } x_n;

  } x_file;

  struct

  {

    char x_scnlen[4];	/* section length */

    char x_nreloc[2];	/* # relocation entries */

    char x_nlinno[2];	/* # line numbers */

#ifdef INCLUDE_COMDAT_FIELDS_IN_AUXENT

    char x_checksum[4];		   /* section COMDAT checksum	      */

    char x_associated[2];	   /* COMDAT associated section index */

    char x_comdat[1];		   /* COMDAT selection number	      */

#endif

  } x_scn;

  struct

  {

    char x_tvfill[4];	/* tv fill value */

    char x_tvlen[2];	/* length of .tv */

    char x_tvran[2][2];	/* tv range */

  } x_tv;		/* info about .tv section (in auxent of symbol .tv)) */

} ATTRIBUTE_PACKED ;

#define	AUXENT	union external_auxent

#define	AUXESZ	18

#define _ETEXT	"etext"

#endif /* not DO_NOT_DEFINE_AUXENT */

#endif /* COFF_EXTERNAL_H */