forked from KolibriOS/kolibrios
198 lines
4.9 KiB
C
198 lines
4.9 KiB
C
/* coff information for 88k bcs
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Copyright (C) 2001-2015 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 3 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,
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MA 02110-1301, USA. */
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#define DO_NOT_DEFINE_SCNHDR
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#define L_LNNO_SIZE 4
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#define DO_NOT_DEFINE_SYMENT
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#define DO_NOT_DEFINE_AUXENT
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#include "coff/external.h"
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#define MC88MAGIC 0540 /* 88k BCS executable */
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#define MC88DMAGIC 0541 /* DG/UX executable */
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#define MC88OMAGIC 0555 /* Object file */
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#define MC88BADMAG(x) (((x).f_magic != MC88MAGIC) \
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&& ((x).f_magic != MC88DMAGIC) \
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&& ((x).f_magic != MC88OMAGIC))
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#define PAGEMAGIC3 0414 /* Split i&d, zero mapped */
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#define PAGEMAGICBCS 0413
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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[4]; /* number of relocation entries */
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char s_nlnno[4]; /* 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 44
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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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/********************** SYMBOLS **********************/
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#define E_SYMNMLEN 8 /* # characters in a symbol name */
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#define E_FILNMLEN 14 /* # characters in a file name */
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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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char pad2[2];
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};
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#define N_BTMASK 017
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#define N_TMASK 060
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#define N_BTSHFT 4
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#define N_TSHIFT 2
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/* Note that this isn't the same shape as other coffs */
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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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/* 4 */
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union
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{
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char x_fsize[4]; /* size of function */
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struct
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{
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char x_lnno[4]; /* declaration line number */
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char x_size[4]; /* str/union/array size */
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} x_lnsz;
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} x_misc;
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/* 12 */
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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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/* 20 */
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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[4]; /* # relocation entries */
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char x_nlinno[4]; /* # line numbers */
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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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};
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#define GET_LNSZ_SIZE(abfd, ext) \
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H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_size)
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#define GET_LNSZ_LNNO(abfd, ext) \
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H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno)
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#define PUT_LNSZ_LNNO(abfd, in, ext) \
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H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno)
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#define PUT_LNSZ_SIZE(abfd, in, ext) \
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H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_size)
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#define GET_SCN_NRELOC(abfd, ext) \
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H_GET_32 (abfd, ext->x_scn.x_nreloc)
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#define GET_SCN_NLINNO(abfd, ext) \
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H_GET_32 (abfd, ext->x_scn.x_nlinno)
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#define PUT_SCN_NRELOC(abfd, in, ext) \
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H_PUT_32 (abfd, in, ext->x_scn.x_nreloc)
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#define PUT_SCN_NLINNO(abfd, in, ext) \
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H_PUT_32 (abfd,in, ext->x_scn.x_nlinno)
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#define SYMENT struct external_syment
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#define SYMESZ 20
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#define AUXENT union external_auxent
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#define AUXESZ 20
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/********************** RELOCATION DIRECTIVES **********************/
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struct external_reloc
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{
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char r_vaddr[4];
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char r_symndx[4];
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char r_type[2];
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char r_offset[2];
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};
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#define RELOC struct external_reloc
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#define RELSZ 12
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#define NO_TVNDX
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