newlib-cygwin/include/coff/sparc.h

/* coff information for Sparc.
   
   Copyright 2001, 2010 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.  */

/* This file is an amalgamation of several standard include files that
   define coff format, such as filehdr.h, aouthdr.h, and so forth.  In
   addition, all datatypes have been translated into character arrays of
   (presumed) equivalent size.  This is necessary so that this file can
   be used with different systems while still yielding the same results.  */

#define L_LNNO_SIZE 2
#define DO_NOT_DEFINE_SYMENT
#define DO_NOT_DEFINE_AUXENT
#include "coff/external.h"

#define F_RELFLG	(0x0001)	/* relocation info stripped */
#define F_EXEC		(0x0002)	/* file is executable */
#define F_LNNO		(0x0004)	/* line numbers stripped */
#define F_LSYMS		(0x0008)	/* local symbols stripped */

#define SPARCMAGIC	(0540)

/* This is Lynx's all-platform magic number for executables. */

#define LYNXCOFFMAGIC	(0415)

#define OMAGIC          0404    /* object files, eg as output */
#define ZMAGIC          0413    /* demand load format, eg normal ld output */
#define STMAGIC		0401	/* target shlib */
#define SHMAGIC		0443	/* host   shlib */

/* More names of "special" sections. */

#define _TV	".tv"
#define _INIT	".init"
#define _FINI	".fini"

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

#define E_SYMNMLEN	(8)	/* # characters in a symbol name	*/
#define E_FILNMLEN	(14)	/* # characters in a file name		*/
#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;
#if 0 /* of doubtful value */
    char e_nptr[2][4];
    struct {
      char e_leading_zero[1];
      char e_dbx_type[1];
      char e_dbx_desc[2];
    } e_dbx;
#endif
  } e;

  char e_value[4];
  char e_scnum[2];
  char e_type[2];
  char e_sclass[1];
  char e_numaux[1];
  char padding[2];
};

#define N_BTMASK	(0xf)
#define N_TMASK		(0x30)
#define N_BTSHFT	(4)
#define N_TSHIFT	(2)
  
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 */
  } 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;			/* .tv section info (in auxent of sym .tv)) */

  char x_fill[20];		/* forces to 20-byte size */
};

#define	SYMENT	struct external_syment
#define	SYMESZ	20	
#define	AUXENT	union external_auxent
#define	AUXESZ	20

#define _ETEXT	"etext"

/********************** RELOCATION DIRECTIVES **********************/

struct external_reloc
{
  char r_vaddr[4];
  char r_symndx[4];
  char r_type[2];
  char r_spare[2];
  char r_offset[4];
};

#define RELOC struct external_reloc
#define RELSZ 16