source: trunk/libs/newlib/src/include/coff/m88k.h @ 668

/* coff information for 88k bcs
   
   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.  */

#define DO_NOT_DEFINE_SCNHDR
#define L_LNNO_SIZE 4
#define DO_NOT_DEFINE_SYMENT
#define DO_NOT_DEFINE_AUXENT
#include "coff/external.h"

#define MC88MAGIC  0540           /* 88k BCS executable */
#define MC88DMAGIC 0541           /* DG/UX executable   */
#define MC88OMAGIC 0555           /* Object file        */

#define MC88BADMAG(x) (((x).f_magic != MC88MAGIC) \
                    && ((x).f_magic != MC88DMAGIC) \
                    && ((x).f_magic != MC88OMAGIC))

#define PAGEMAGIC3   0414 /* Split i&d, zero mapped */
#define PAGEMAGICBCS 0413

/********************** 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[4];    /* number of relocation entries */
  char          s_nlnno[4];     /* number of line number entries*/
  char          s_flags[4];     /* flags                        */
};

#define SCNHDR  struct external_scnhdr
#define SCNHSZ  44

/* Names of "special" sections.  */
#define _TEXT   ".text"
#define _DATA   ".data"
#define _BSS    ".bss"
#define _COMMENT ".comment"


/********************** 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;

  } e;

  char e_value[4];
  char e_scnum[2];
  char e_type[2];
  char e_sclass[1];
  char e_numaux[1];
  char pad2[2];
};

#define N_BTMASK        017
#define N_TMASK         060
#define N_BTSHFT        4
#define N_TSHIFT        2

/* Note that this isn't the same shape as other coffs */
union external_auxent
{
  struct
  {
    char x_tagndx[4];           /* str, un, or enum tag indx */
    /* 4 */
    
    union
    {
      char x_fsize[4];          /* size of function */

      struct
      {
        char  x_lnno[4];        /* declaration line number */
        char  x_size[4];        /* str/union/array size */
      } x_lnsz;

    } x_misc;
    
    /* 12 */
    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;
    /* 20 */
    
  } 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[4];           /* # relocation entries */
    char x_nlinno[4];           /* # 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;                       /* info about .tv section (in auxent of symbol .tv)) */
};

#define GET_LNSZ_SIZE(abfd, ext) \
  H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_size)
#define GET_LNSZ_LNNO(abfd, ext) \
  H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno)
#define PUT_LNSZ_LNNO(abfd, in, ext) \
  H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno)
#define PUT_LNSZ_SIZE(abfd, in, ext) \
  H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_size)
#define GET_SCN_NRELOC(abfd, ext) \
  H_GET_32 (abfd, ext->x_scn.x_nreloc)
#define GET_SCN_NLINNO(abfd, ext) \
  H_GET_32 (abfd, ext->x_scn.x_nlinno)
#define PUT_SCN_NRELOC(abfd, in, ext) \
  H_PUT_32 (abfd, in, ext->x_scn.x_nreloc)
#define PUT_SCN_NLINNO(abfd, in, ext) \
  H_PUT_32 (abfd,in, ext->x_scn.x_nlinno)

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

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

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

#define RELOC struct external_reloc
#define RELSZ  12

#define NO_TVNDX