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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.20.1/] [include/] [coff/] [external.h] - Blame information for rev 247

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1 205 julius
/* external.h  -- External COFF structures
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   Copyright 2001, 2006 Free Software Foundation, Inc.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 2 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
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#ifndef COFF_EXTERNAL_H
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#define COFF_EXTERNAL_H
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#ifndef DO_NOT_DEFINE_FILHDR
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/********************** FILE HEADER **********************/
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struct external_filehdr
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  {
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    char f_magic[2];    /* magic number                 */
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    char f_nscns[2];    /* number of sections           */
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    char f_timdat[4];   /* time & date stamp            */
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    char f_symptr[4];   /* file pointer to symtab       */
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    char f_nsyms[4];    /* number of symtab entries     */
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    char f_opthdr[2];   /* sizeof(optional hdr)         */
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    char f_flags[2];    /* flags                        */
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  };
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#define FILHDR  struct external_filehdr
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#define FILHSZ  20
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#endif
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#ifndef DO_NOT_DEFINE_AOUTHDR
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/********************** AOUT "OPTIONAL HEADER" **********************/
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typedef struct external_aouthdr
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  {
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    char magic[2];      /* type of file                         */
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    char vstamp[2];     /* version stamp                        */
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    char tsize[4];      /* text size in bytes, padded to FW bdry*/
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    char dsize[4];      /* initialized data "  "                */
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    char bsize[4];      /* uninitialized data "   "             */
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    char entry[4];      /* entry pt.                            */
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    char text_start[4]; /* base of text used for this file      */
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    char data_start[4]; /* base of data used for this file      */
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  } ATTRIBUTE_PACKED
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AOUTHDR;
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#define AOUTHDRSZ 28
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#define AOUTSZ 28
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typedef struct external_aouthdr64
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{
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  char magic[2];        /* Type of file.                        */
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  char vstamp[2];       /* Version stamp.                       */
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  char tsize[4];        /* Text size in bytes, padded to FW bdry*/
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  char dsize[4];        /* Initialized data "  ".               */
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  char bsize[4];        /* Uninitialized data "   ".            */
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  char entry[4];        /* Entry pt.                            */
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  char text_start[4];   /* Base of text used for this file.     */
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}
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AOUTHDR64;
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#define AOUTHDRSZ64     24
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#endif /* not DO_NOT_DEFINE_AOUTHDR */
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#ifndef DO_NOT_DEFINE_SCNHDR
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/********************** SECTION HEADER **********************/
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struct external_scnhdr
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  {
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    char s_name[8];     /* section name                         */
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    char s_paddr[4];    /* physical address, aliased s_nlib     */
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    char s_vaddr[4];    /* virtual address                      */
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    char s_size[4];     /* section size                         */
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    char s_scnptr[4];   /* file ptr to raw data for section     */
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    char s_relptr[4];   /* file ptr to relocation               */
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    char s_lnnoptr[4];  /* file ptr to line numbers             */
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    char s_nreloc[2];   /* number of relocation entries         */
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    char s_nlnno[2];    /* number of line number entries        */
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    char s_flags[4];    /* flags                                */
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  };
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#define SCNHDR  struct external_scnhdr
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#define SCNHSZ  40
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/* Names of "special" sections.  */
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#define _TEXT    ".text"
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#define _DATA    ".data"
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#define _BSS     ".bss"
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#define _COMMENT ".comment"
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#define _LIB     ".lib"
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#endif /* not DO_NOT_DEFINE_SCNHDR */
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#ifndef DO_NOT_DEFINE_LINENO
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/********************** LINE NUMBERS **********************/
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#ifndef L_LNNO_SIZE
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#error  L_LNNO_SIZE needs to be defined
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#endif
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/* 1 line number entry for every "breakpointable" source line in a section.
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   Line numbers are grouped on a per function basis; first entry in a function
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   grouping will have l_lnno = 0 and in place of physical address will be the
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   symbol table index of the function name.  */
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struct external_lineno
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{
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  union
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  {
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    char l_symndx[4];   /* function name symbol index, iff l_lnno == 0*/
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    char l_paddr[4];    /* (physical) address of line number    */
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  } l_addr;
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  char l_lnno[L_LNNO_SIZE];     /* line number          */
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};
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#define LINENO  struct external_lineno
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#define LINESZ  (4 + L_LNNO_SIZE)
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#if L_LNNO_SIZE == 4
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#define GET_LINENO_LNNO(abfd, ext)      H_GET_32 (abfd,      (ext->l_lnno))
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#define PUT_LINENO_LNNO(abfd, val, ext) H_PUT_32 (abfd, val, (ext->l_lnno))
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#endif
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#if L_LNNO_SIZE == 2
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#define GET_LINENO_LNNO(abfd, ext)      H_GET_16 (abfd,      (ext->l_lnno))
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#define PUT_LINENO_LNNO(abfd, val, ext) H_PUT_16 (abfd, val, (ext->l_lnno))
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#endif
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#endif /* not DO_NOT_DEFINE_LINENO */
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#ifndef DO_NOT_DEFINE_SYMENT
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/********************** SYMBOLS **********************/
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#define E_SYMNMLEN      8       /* # characters in a symbol name        */
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#ifndef E_FILNMLEN
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#define E_FILNMLEN      14
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#endif
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#define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
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struct external_syment
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{
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  union
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  {
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    char e_name[E_SYMNMLEN];
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    struct
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    {
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      char e_zeroes[4];
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      char e_offset[4];
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    } e;
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  } e;
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  char e_value[4];
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  char e_scnum[2];
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  char e_type[2];
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  char e_sclass[1];
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  char e_numaux[1];
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} ATTRIBUTE_PACKED ;
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#define SYMENT  struct external_syment
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#define SYMESZ  18      
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#ifndef N_BTMASK
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#define N_BTMASK        0xf
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#endif
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#ifndef N_TMASK
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#define N_TMASK         0x30
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#endif
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#ifndef N_BTSHFT
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#define N_BTSHFT        4
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#endif
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#ifndef N_TSHIFT
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#define N_TSHIFT        2
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#endif
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#endif /* not DO_NOT_DEFINE_SYMENT */
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#ifndef DO_NOT_DEFINE_AUXENT
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union external_auxent
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{
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  struct
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  {
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    char x_tagndx[4];           /* str, un, or enum tag indx */
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    union
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    {
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      struct
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      {
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        char  x_lnno[2]; /* declaration line number */
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        char  x_size[2]; /* str/union/array size */
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      } x_lnsz;
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      char x_fsize[4];  /* size of function */
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    } x_misc;
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    union
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    {
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      struct            /* if ISFCN, tag, or .bb */
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      {
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        char x_lnnoptr[4];      /* ptr to fcn line # */
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        char x_endndx[4];       /* entry ndx past block end */
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      } x_fcn;
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      struct            /* if ISARY, up to 4 dimen. */
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      {
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        char x_dimen[E_DIMNUM][2];
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      } x_ary;
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    } x_fcnary;
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    char x_tvndx[2];    /* tv index */
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  } x_sym;
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  union
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  {
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    char x_fname[E_FILNMLEN];
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    struct
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    {
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      char x_zeroes[4];
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      char x_offset[4];
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    } x_n;
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  } x_file;
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  struct
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  {
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    char x_scnlen[4];   /* section length */
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    char x_nreloc[2];   /* # relocation entries */
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    char x_nlinno[2];   /* # line numbers */
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#ifdef INCLUDE_COMDAT_FIELDS_IN_AUXENT
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    char x_checksum[4];            /* section COMDAT checksum         */
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    char x_associated[2];          /* COMDAT associated section index */
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    char x_comdat[1];              /* COMDAT selection number         */
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#endif    
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  } x_scn;
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  struct
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  {
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    char x_tvfill[4];   /* tv fill value */
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    char x_tvlen[2];    /* length of .tv */
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    char x_tvran[2][2]; /* tv range */
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  } x_tv;               /* info about .tv section (in auxent of symbol .tv)) */
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} ATTRIBUTE_PACKED ;
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#define AUXENT  union external_auxent
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#define AUXESZ  18
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#define _ETEXT  "etext"
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#endif /* not DO_NOT_DEFINE_AUXENT */
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#endif /* COFF_EXTERNAL_H */

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