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121 lines
4.0 KiB
C
121 lines
4.0 KiB
C
/* BFD back-end for Apollo 68000 COFF binaries.
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Copyright 1990, 91, 92, 93, 94, 95, 1997 Free Software Foundation, Inc.
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By Troy Rollo (troy@cbme.unsw.edu.au)
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Based on m68k standard COFF version Written by Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "coff/apollo.h"
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#include "coff/internal.h"
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#include "libcoff.h"
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#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
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#ifdef ONLY_DECLARE_RELOCS
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extern reloc_howto_type apollocoff_howto_table[];
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#else
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reloc_howto_type apollocoff_howto_table[] =
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{
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HOWTO(R_RELBYTE, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "8", true, 0x000000ff,0x000000ff, false),
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HOWTO(R_RELWORD, 0, 1, 16, false, 0, complain_overflow_bitfield, 0, "16", true, 0x0000ffff,0x0000ffff, false),
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HOWTO(R_RELLONG, 0, 2, 32, false, 0, complain_overflow_bitfield, 0, "32", true, 0xffffffff,0xffffffff, false),
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HOWTO(R_PCRBYTE, 0, 0, 8, true, 0, complain_overflow_signed, 0, "DISP8", true, 0x000000ff,0x000000ff, false),
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HOWTO(R_PCRWORD, 0, 1, 16, true, 0, complain_overflow_signed, 0, "DISP16", true, 0x0000ffff,0x0000ffff, false),
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HOWTO(R_PCRLONG, 0, 2, 32, true, 0, complain_overflow_signed, 0, "DISP32", true, 0xffffffff,0xffffffff, false),
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HOWTO(R_RELLONG_NEG, 0, -2, 32, false, 0, complain_overflow_bitfield, 0, "-32", true, 0xffffffff,0xffffffff, false),
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};
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#endif /* not ONLY_DECLARE_RELOCS */
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#ifndef BADMAG
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#define BADMAG(x) M68KBADMAG(x)
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#endif
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#define APOLLO_M68 1 /* Customize coffcode.h */
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/* Turn a howto into a reloc number */
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#ifdef ONLY_DECLARE_RELOCS
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extern void apollo_rtype2howto PARAMS ((arelent *internal, int relocentry));
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extern int apollo_howto2rtype PARAMS ((reloc_howto_type *));
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#else
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void
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apollo_rtype2howto(internal, relocentry)
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arelent *internal;
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int relocentry;
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{
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switch (relocentry)
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{
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case R_RELBYTE: internal->howto = apollocoff_howto_table + 0; break;
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case R_RELWORD: internal->howto = apollocoff_howto_table + 1; break;
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case R_RELLONG: internal->howto = apollocoff_howto_table + 2; break;
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case R_PCRBYTE: internal->howto = apollocoff_howto_table + 3; break;
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case R_PCRWORD: internal->howto = apollocoff_howto_table + 4; break;
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case R_PCRLONG: internal->howto = apollocoff_howto_table + 5; break;
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case R_RELLONG_NEG: internal->howto = apollocoff_howto_table + 6; break;
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}
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}
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int
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apollo_howto2rtype (internal)
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reloc_howto_type *internal;
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{
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if (internal->pc_relative)
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{
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switch (internal->bitsize)
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{
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case 32: return R_PCRLONG;
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case 16: return R_PCRWORD;
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case 8: return R_PCRBYTE;
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}
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}
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else
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{
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switch (internal->bitsize)
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{
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case 32: return R_RELLONG;
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case 16: return R_RELWORD;
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case 8: return R_RELBYTE;
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}
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}
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return R_RELLONG;
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}
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#endif /* not ONLY_DECLARE_RELOCS */
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#define RTYPE2HOWTO(internal, relocentry) \
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apollo_rtype2howto(internal, (relocentry)->r_type)
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#define SELECT_RELOC(external, internal) \
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external.r_type = apollo_howto2rtype(internal);
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#include "coffcode.h"
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#ifndef TARGET_SYM
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#define TARGET_SYM apollocoff_vec
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#endif
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#ifndef TARGET_NAME
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#define TARGET_NAME "apollo-m68k"
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#endif
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#ifdef NAMES_HAVE_UNDERSCORE
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CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, '_', NULL)
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#else
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CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, 0, NULL)
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#endif
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