1999-05-03 09:29:11 +02:00
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/* BFD back-end for Motorola 68000 COFF binaries.
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2001-08-23 17:30:34 +02:00
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Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999,
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2005-02-20 15:59:07 +01:00
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2000, 2001, 2002, 2003, 2005
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1999-07-12 12:30:21 +02:00
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Free Software Foundation, Inc.
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1999-05-03 09:29:11 +02:00
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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/m68k.h"
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#include "coff/internal.h"
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#include "libcoff.h"
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/* This source file is compiled multiple times for various m68k COFF
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variants. The following macros control its behaviour:
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TARGET_SYM
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The C name of the BFD target vector. The default is m68kcoff_vec.
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TARGET_NAME
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The user visible target name. The default is "coff-m68k".
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NAMES_HAVE_UNDERSCORE
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Whether symbol names have an underscore.
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ONLY_DECLARE_RELOCS
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Only declare the relocation howto array. Don't actually compile
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it. The actual array will be picked up in another version of the
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file.
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STATIC_RELOCS
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Make the relocation howto array, and associated functions, static.
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COFF_COMMON_ADDEND
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If this is defined, then, for a relocation against a common
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symbol, the object file holds the value (the size) of the common
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symbol. If this is not defined, then, for a relocation against a
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common symbol, the object file holds zero. */
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#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
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#ifndef COFF_PAGE_SIZE
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/* The page size is a guess based on ELF. */
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#define COFF_PAGE_SIZE 0x2000
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#endif
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#ifndef COFF_COMMON_ADDEND
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#define RELOC_SPECIAL_FN 0
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#else
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static bfd_reloc_status_type m68kcoff_common_addend_special_fn
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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static reloc_howto_type *m68kcoff_common_addend_rtype_to_howto
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PARAMS ((bfd *, asection *, struct internal_reloc *,
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struct coff_link_hash_entry *, struct internal_syment *,
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bfd_vma *));
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#define RELOC_SPECIAL_FN m68kcoff_common_addend_special_fn
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#endif
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2002-11-30 09:39:46 +01:00
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static bfd_boolean m68k_coff_is_local_label_name
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PARAMS ((bfd *, const char *));
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1999-05-03 09:29:11 +02:00
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/* On the delta, a symbol starting with L% is local. We won't see
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such a symbol on other platforms, so it should be safe to always
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consider it local here. */
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2002-11-30 09:39:46 +01:00
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static bfd_boolean
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1999-05-03 09:29:11 +02:00
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m68k_coff_is_local_label_name (abfd, name)
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bfd *abfd;
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const char *name;
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{
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if (name[0] == 'L' && name[1] == '%')
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2002-11-30 09:39:46 +01:00
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return TRUE;
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1999-05-03 09:29:11 +02:00
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return _bfd_coff_is_local_label_name (abfd, name);
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}
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#ifndef STATIC_RELOCS
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/* Clean up namespace. */
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#define m68kcoff_howto_table _bfd_m68kcoff_howto_table
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#define m68k_rtype2howto _bfd_m68kcoff_rtype2howto
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#define m68k_howto2rtype _bfd_m68kcoff_howto2rtype
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#define m68k_reloc_type_lookup _bfd_m68kcoff_reloc_type_lookup
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#endif
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#ifdef ONLY_DECLARE_RELOCS
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extern reloc_howto_type m68kcoff_howto_table[];
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#else
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#ifdef STATIC_RELOCS
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static
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#endif
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2000-11-11 20:03:23 +01:00
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reloc_howto_type m68kcoff_howto_table[] =
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2001-08-23 17:30:34 +02:00
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{
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2002-11-30 09:39:46 +01:00
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HOWTO (R_RELBYTE, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, RELOC_SPECIAL_FN, "8", TRUE, 0x000000ff,0x000000ff, FALSE),
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HOWTO (R_RELWORD, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, RELOC_SPECIAL_FN, "16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
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HOWTO (R_RELLONG, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, RELOC_SPECIAL_FN, "32", TRUE, 0xffffffff,0xffffffff, FALSE),
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HOWTO (R_PCRBYTE, 0, 0, 8, TRUE, 0, complain_overflow_signed, RELOC_SPECIAL_FN, "DISP8", TRUE, 0x000000ff,0x000000ff, FALSE),
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HOWTO (R_PCRWORD, 0, 1, 16, TRUE, 0, complain_overflow_signed, RELOC_SPECIAL_FN, "DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
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HOWTO (R_PCRLONG, 0, 2, 32, TRUE, 0, complain_overflow_signed, RELOC_SPECIAL_FN, "DISP32", TRUE, 0xffffffff,0xffffffff, FALSE),
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HOWTO (R_RELLONG_NEG, 0, -2, 32, FALSE, 0, complain_overflow_bitfield, RELOC_SPECIAL_FN, "-32", TRUE, 0xffffffff,0xffffffff, FALSE),
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2001-08-23 17:30:34 +02:00
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};
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1999-05-03 09:29:11 +02:00
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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 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 m68k_rtype2howto PARAMS ((arelent *internal, int relocentry));
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extern int m68k_howto2rtype PARAMS ((reloc_howto_type *));
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extern reloc_howto_type *m68k_reloc_type_lookup
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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#else
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2001-08-23 19:05:52 +02:00
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1999-05-03 09:29:11 +02:00
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#ifdef STATIC_RELOCS
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2001-08-23 19:05:52 +02:00
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#define STAT_REL static
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#else
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#define STAT_REL
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1999-05-03 09:29:11 +02:00
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#endif
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2001-08-23 19:05:52 +02:00
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STAT_REL reloc_howto_type * m68k_reloc_type_lookup PARAMS ((bfd *, bfd_reloc_code_real_type));
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STAT_REL int m68k_howto2rtype PARAMS ((reloc_howto_type *));
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STAT_REL void m68k_rtype2howto PARAMS ((arelent *, int));
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STAT_REL void
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1999-05-03 09:29:11 +02:00
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m68k_rtype2howto(internal, relocentry)
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arelent *internal;
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int relocentry;
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{
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2000-11-11 20:03:23 +01:00
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switch (relocentry)
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2001-08-23 17:30:34 +02:00
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{
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case R_RELBYTE: internal->howto = m68kcoff_howto_table + 0; break;
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case R_RELWORD: internal->howto = m68kcoff_howto_table + 1; break;
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case R_RELLONG: internal->howto = m68kcoff_howto_table + 2; break;
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case R_PCRBYTE: internal->howto = m68kcoff_howto_table + 3; break;
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case R_PCRWORD: internal->howto = m68kcoff_howto_table + 4; break;
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case R_PCRLONG: internal->howto = m68kcoff_howto_table + 5; break;
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case R_RELLONG_NEG: internal->howto = m68kcoff_howto_table + 6; break;
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}
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1999-05-03 09:29:11 +02:00
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}
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2001-08-23 19:05:52 +02:00
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STAT_REL int
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1999-05-03 09:29:11 +02:00
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m68k_howto2rtype (internal)
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reloc_howto_type *internal;
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{
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2000-11-11 20:03:23 +01:00
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if (internal->pc_relative)
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1999-05-03 09:29:11 +02:00
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{
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2001-08-23 17:30:34 +02:00
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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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1999-05-03 09:29:11 +02:00
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}
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2000-11-11 20:03:23 +01:00
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else
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2001-08-23 17:30:34 +02:00
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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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2000-11-11 20:03:23 +01:00
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return R_RELLONG;
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1999-05-03 09:29:11 +02:00
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}
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2001-08-23 19:05:52 +02:00
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STAT_REL reloc_howto_type *
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1999-05-03 09:29:11 +02:00
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m68k_reloc_type_lookup (abfd, code)
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1999-07-12 12:30:21 +02:00
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bfd *abfd ATTRIBUTE_UNUSED;
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1999-05-03 09:29:11 +02:00
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bfd_reloc_code_real_type code;
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{
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switch (code)
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{
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default: return NULL;
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case BFD_RELOC_8: return m68kcoff_howto_table + 0;
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case BFD_RELOC_16: return m68kcoff_howto_table + 1;
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case BFD_RELOC_CTOR:
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case BFD_RELOC_32: return m68kcoff_howto_table + 2;
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case BFD_RELOC_8_PCREL: return m68kcoff_howto_table + 3;
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case BFD_RELOC_16_PCREL: return m68kcoff_howto_table + 4;
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case BFD_RELOC_32_PCREL: return m68kcoff_howto_table + 5;
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/* FIXME: There doesn't seem to be a code for R_RELLONG_NEG. */
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}
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/*NOTREACHED*/
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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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m68k_rtype2howto(internal, (relocentry)->r_type)
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#define SELECT_RELOC(external, internal) \
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external.r_type = m68k_howto2rtype (internal)
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#define coff_bfd_reloc_type_lookup m68k_reloc_type_lookup
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#ifndef COFF_COMMON_ADDEND
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#ifndef coff_rtype_to_howto
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#define coff_rtype_to_howto m68kcoff_rtype_to_howto
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static reloc_howto_type *m68kcoff_rtype_to_howto
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PARAMS ((bfd *, asection *, struct internal_reloc *,
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struct coff_link_hash_entry *, struct internal_syment *,
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bfd_vma *));
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static reloc_howto_type *
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m68kcoff_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
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1999-07-12 12:30:21 +02:00
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bfd *abfd ATTRIBUTE_UNUSED;
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1999-05-03 09:29:11 +02:00
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asection *sec;
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struct internal_reloc *rel;
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1999-07-12 12:30:21 +02:00
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struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
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struct internal_syment *sym ATTRIBUTE_UNUSED;
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1999-05-03 09:29:11 +02:00
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bfd_vma *addendp;
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{
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arelent relent;
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reloc_howto_type *howto;
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RTYPE2HOWTO (&relent, rel);
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howto = relent.howto;
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if (howto->pc_relative)
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*addendp += sec->vma;
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return howto;
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}
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#endif /* ! defined (coff_rtype_to_howto) */
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#endif /* ! defined (COFF_COMMON_ADDEND) */
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#ifdef COFF_COMMON_ADDEND
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/* If COFF_COMMON_ADDEND is defined, then when using m68k COFF the
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value stored in the .text section for a reference to a common
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symbol is the value itself plus any desired offset. (taken from
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work done by Ian Taylor, Cygnus Support, for I386 COFF). */
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2003-06-25 08:40:27 +02:00
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/* If we are producing relocatable output, we need to do some
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1999-05-03 09:29:11 +02:00
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adjustments to the object file that are not done by the
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bfd_perform_relocation function. This function is called by every
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reloc type to make any required adjustments. */
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static bfd_reloc_status_type
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m68kcoff_common_addend_special_fn (abfd, reloc_entry, symbol, data,
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input_section, output_bfd, error_message)
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bfd *abfd;
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arelent *reloc_entry;
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asymbol *symbol;
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PTR data;
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1999-07-12 12:30:21 +02:00
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asection *input_section ATTRIBUTE_UNUSED;
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1999-05-03 09:29:11 +02:00
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bfd *output_bfd;
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1999-07-12 12:30:21 +02:00
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char **error_message ATTRIBUTE_UNUSED;
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1999-05-03 09:29:11 +02:00
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{
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symvalue diff;
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if (output_bfd == (bfd *) NULL)
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|
|
|
|
return bfd_reloc_continue;
|
|
|
|
|
|
|
|
|
|
if (bfd_is_com_section (symbol->section))
|
|
|
|
|
{
|
|
|
|
|
/* We are relocating a common symbol. The current value in the
|
|
|
|
|
object file is ORIG + OFFSET, where ORIG is the value of the
|
|
|
|
|
common symbol as seen by the object file when it was compiled
|
|
|
|
|
(this may be zero if the symbol was undefined) and OFFSET is
|
|
|
|
|
the offset into the common symbol (normally zero, but may be
|
|
|
|
|
non-zero when referring to a field in a common structure).
|
|
|
|
|
ORIG is the negative of reloc_entry->addend, which is set by
|
|
|
|
|
the CALC_ADDEND macro below. We want to replace the value in
|
|
|
|
|
the object file with NEW + OFFSET, where NEW is the value of
|
|
|
|
|
the common symbol which we are going to put in the final
|
|
|
|
|
object file. NEW is symbol->value. */
|
|
|
|
|
diff = symbol->value + reloc_entry->addend;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* For some reason bfd_perform_relocation always effectively
|
|
|
|
|
ignores the addend for a COFF target when producing
|
2003-06-25 08:40:27 +02:00
|
|
|
|
relocatable output. This seems to be always wrong for 386
|
1999-05-03 09:29:11 +02:00
|
|
|
|
COFF, so we handle the addend here instead. */
|
|
|
|
|
diff = reloc_entry->addend;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define DOIT(x) \
|
|
|
|
|
x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask))
|
|
|
|
|
|
|
|
|
|
if (diff != 0)
|
|
|
|
|
{
|
|
|
|
|
reloc_howto_type *howto = reloc_entry->howto;
|
|
|
|
|
unsigned char *addr = (unsigned char *) data + reloc_entry->address;
|
|
|
|
|
|
|
|
|
|
switch (howto->size)
|
|
|
|
|
{
|
|
|
|
|
case 0:
|
|
|
|
|
{
|
|
|
|
|
char x = bfd_get_8 (abfd, addr);
|
|
|
|
|
DOIT (x);
|
|
|
|
|
bfd_put_8 (abfd, x, addr);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 1:
|
|
|
|
|
{
|
|
|
|
|
short x = bfd_get_16 (abfd, addr);
|
|
|
|
|
DOIT (x);
|
Touches most files in bfd/, so likely will be blamed for everything..
o bfd_read and bfd_write lose an unnecessary param and become
bfd_bread and bfd_bwrite.
o bfd_*alloc now all take a bfd_size_type arg, and will error if
size_t is too small. eg. 32 bit host, 64 bit bfd, verrry big files
or bugs in linker scripts etc.
o file_ptr becomes a bfd_signed_vma. Besides matching sizes with
various other types involved in handling sections, this should make
it easier for bfd to support a 64 bit off_t on 32 bit hosts that
provide it.
o I've made the H_GET_* and H_PUT_* macros (which invoke bfd_h_{get,put}_*)
generally available. They now cast their args to bfd_vma and
bfd_byte * as appropriate, which removes a swag of casts from the
source.
o Bug fixes to bfd_get8, aix386_core_vec, elf32_h8_relax_section, and
aout-encap.c.
o Zillions of formatting and -Wconversion fixes.
2001-09-18 11:57:26 +02:00
|
|
|
|
bfd_put_16 (abfd, (bfd_vma) x, addr);
|
1999-05-03 09:29:11 +02:00
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 2:
|
|
|
|
|
{
|
|
|
|
|
long x = bfd_get_32 (abfd, addr);
|
|
|
|
|
DOIT (x);
|
Touches most files in bfd/, so likely will be blamed for everything..
o bfd_read and bfd_write lose an unnecessary param and become
bfd_bread and bfd_bwrite.
o bfd_*alloc now all take a bfd_size_type arg, and will error if
size_t is too small. eg. 32 bit host, 64 bit bfd, verrry big files
or bugs in linker scripts etc.
o file_ptr becomes a bfd_signed_vma. Besides matching sizes with
various other types involved in handling sections, this should make
it easier for bfd to support a 64 bit off_t on 32 bit hosts that
provide it.
o I've made the H_GET_* and H_PUT_* macros (which invoke bfd_h_{get,put}_*)
generally available. They now cast their args to bfd_vma and
bfd_byte * as appropriate, which removes a swag of casts from the
source.
o Bug fixes to bfd_get8, aix386_core_vec, elf32_h8_relax_section, and
aout-encap.c.
o Zillions of formatting and -Wconversion fixes.
2001-09-18 11:57:26 +02:00
|
|
|
|
bfd_put_32 (abfd, (bfd_vma) x, addr);
|
1999-05-03 09:29:11 +02:00
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Now let bfd_perform_relocation finish everything up. */
|
|
|
|
|
return bfd_reloc_continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Compute the addend of a reloc. If the reloc is to a common symbol,
|
|
|
|
|
the object file contains the value of the common symbol. By the
|
|
|
|
|
time this is called, the linker may be using a different symbol
|
|
|
|
|
from a different object file with a different value. Therefore, we
|
|
|
|
|
hack wildly to locate the original symbol from this file so that we
|
|
|
|
|
can make the correct adjustment. This macro sets coffsym to the
|
|
|
|
|
symbol from the original file, and uses it to set the addend value
|
|
|
|
|
correctly. If this is not a common symbol, the usual addend
|
|
|
|
|
calculation is done, except that an additional tweak is needed for
|
|
|
|
|
PC relative relocs.
|
|
|
|
|
FIXME: This macro refers to symbols and asect; these are from the
|
|
|
|
|
calling function, not the macro arguments. */
|
|
|
|
|
|
|
|
|
|
#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
|
|
|
|
|
{ \
|
|
|
|
|
coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
|
|
|
|
|
if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
|
|
|
|
|
coffsym = (obj_symbols (abfd) \
|
|
|
|
|
+ (cache_ptr->sym_ptr_ptr - symbols)); \
|
|
|
|
|
else if (ptr) \
|
|
|
|
|
coffsym = coff_symbol_from (abfd, ptr); \
|
|
|
|
|
if (coffsym != (coff_symbol_type *) NULL \
|
|
|
|
|
&& coffsym->native->u.syment.n_scnum == 0) \
|
|
|
|
|
cache_ptr->addend = - coffsym->native->u.syment.n_value; \
|
|
|
|
|
else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
|
|
|
|
|
&& ptr->section != (asection *) NULL) \
|
|
|
|
|
cache_ptr->addend = - (ptr->section->vma + ptr->value); \
|
|
|
|
|
else \
|
|
|
|
|
cache_ptr->addend = 0; \
|
|
|
|
|
if (ptr && (reloc.r_type == R_PCRBYTE \
|
|
|
|
|
|| reloc.r_type == R_PCRWORD \
|
|
|
|
|
|| reloc.r_type == R_PCRLONG)) \
|
|
|
|
|
cache_ptr->addend += asect->vma; \
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifndef coff_rtype_to_howto
|
|
|
|
|
|
|
|
|
|
/* coff-m68k.c uses the special COFF backend linker. We need to
|
|
|
|
|
adjust common symbols. */
|
|
|
|
|
|
|
|
|
|
static reloc_howto_type *
|
|
|
|
|
m68kcoff_common_addend_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
|
1999-07-12 12:30:21 +02:00
|
|
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
1999-05-03 09:29:11 +02:00
|
|
|
|
asection *sec;
|
|
|
|
|
struct internal_reloc *rel;
|
|
|
|
|
struct coff_link_hash_entry *h;
|
|
|
|
|
struct internal_syment *sym;
|
|
|
|
|
bfd_vma *addendp;
|
|
|
|
|
{
|
|
|
|
|
arelent relent;
|
|
|
|
|
reloc_howto_type *howto;
|
|
|
|
|
|
|
|
|
|
RTYPE2HOWTO (&relent, rel);
|
|
|
|
|
|
|
|
|
|
howto = relent.howto;
|
|
|
|
|
|
|
|
|
|
if (howto->pc_relative)
|
|
|
|
|
*addendp += sec->vma;
|
|
|
|
|
|
|
|
|
|
if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0)
|
|
|
|
|
{
|
|
|
|
|
/* This is a common symbol. The section contents include the
|
|
|
|
|
size (sym->n_value) as an addend. The relocate_section
|
|
|
|
|
function will be adding in the final value of the symbol. We
|
|
|
|
|
need to subtract out the current size in order to get the
|
|
|
|
|
correct result. */
|
|
|
|
|
BFD_ASSERT (h != NULL);
|
|
|
|
|
*addendp -= sym->n_value;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If the output symbol is common (in which case this must be a
|
2003-06-25 08:40:27 +02:00
|
|
|
|
relocatable link), we need to add in the final size of the
|
1999-05-03 09:29:11 +02:00
|
|
|
|
common symbol. */
|
|
|
|
|
if (h != NULL && h->root.type == bfd_link_hash_common)
|
|
|
|
|
*addendp += h->root.u.c.size;
|
|
|
|
|
|
|
|
|
|
return howto;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define coff_rtype_to_howto m68kcoff_common_addend_rtype_to_howto
|
|
|
|
|
|
|
|
|
|
#endif /* ! defined (coff_rtype_to_howto) */
|
|
|
|
|
|
|
|
|
|
#endif /* COFF_COMMON_ADDEND */
|
2000-07-22 01:31:53 +02:00
|
|
|
|
|
|
|
|
|
#if !defined ONLY_DECLARE_RELOCS && ! defined STATIC_RELOCS
|
|
|
|
|
/* Given a .data section and a .emreloc in-memory section, store
|
|
|
|
|
relocation information into the .emreloc section which can be
|
|
|
|
|
used at runtime to relocate the section. This is called by the
|
|
|
|
|
linker when the --embedded-relocs switch is used. This is called
|
|
|
|
|
after the add_symbols entry point has been called for all the
|
|
|
|
|
objects, and before the final_link entry point is called. */
|
|
|
|
|
|
2002-11-30 09:39:46 +01:00
|
|
|
|
bfd_boolean
|
2000-07-22 01:31:53 +02:00
|
|
|
|
bfd_m68k_coff_create_embedded_relocs (abfd, info, datasec, relsec, errmsg)
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
asection *datasec;
|
|
|
|
|
asection *relsec;
|
|
|
|
|
char **errmsg;
|
|
|
|
|
{
|
|
|
|
|
char *extsyms;
|
|
|
|
|
bfd_size_type symesz;
|
|
|
|
|
struct internal_reloc *irel, *irelend;
|
|
|
|
|
bfd_byte *p;
|
Touches most files in bfd/, so likely will be blamed for everything..
o bfd_read and bfd_write lose an unnecessary param and become
bfd_bread and bfd_bwrite.
o bfd_*alloc now all take a bfd_size_type arg, and will error if
size_t is too small. eg. 32 bit host, 64 bit bfd, verrry big files
or bugs in linker scripts etc.
o file_ptr becomes a bfd_signed_vma. Besides matching sizes with
various other types involved in handling sections, this should make
it easier for bfd to support a 64 bit off_t on 32 bit hosts that
provide it.
o I've made the H_GET_* and H_PUT_* macros (which invoke bfd_h_{get,put}_*)
generally available. They now cast their args to bfd_vma and
bfd_byte * as appropriate, which removes a swag of casts from the
source.
o Bug fixes to bfd_get8, aix386_core_vec, elf32_h8_relax_section, and
aout-encap.c.
o Zillions of formatting and -Wconversion fixes.
2001-09-18 11:57:26 +02:00
|
|
|
|
bfd_size_type amt;
|
2000-07-22 01:31:53 +02:00
|
|
|
|
|
2003-06-25 08:40:27 +02:00
|
|
|
|
BFD_ASSERT (! info->relocatable);
|
2000-07-22 01:31:53 +02:00
|
|
|
|
|
|
|
|
|
*errmsg = NULL;
|
|
|
|
|
|
|
|
|
|
if (datasec->reloc_count == 0)
|
2002-11-30 09:39:46 +01:00
|
|
|
|
return TRUE;
|
2000-07-22 01:31:53 +02:00
|
|
|
|
|
|
|
|
|
extsyms = obj_coff_external_syms (abfd);
|
|
|
|
|
symesz = bfd_coff_symesz (abfd);
|
|
|
|
|
|
2002-11-30 09:39:46 +01:00
|
|
|
|
irel = _bfd_coff_read_internal_relocs (abfd, datasec, TRUE, NULL, FALSE,
|
2000-07-22 01:31:53 +02:00
|
|
|
|
NULL);
|
|
|
|
|
irelend = irel + datasec->reloc_count;
|
|
|
|
|
|
Touches most files in bfd/, so likely will be blamed for everything..
o bfd_read and bfd_write lose an unnecessary param and become
bfd_bread and bfd_bwrite.
o bfd_*alloc now all take a bfd_size_type arg, and will error if
size_t is too small. eg. 32 bit host, 64 bit bfd, verrry big files
or bugs in linker scripts etc.
o file_ptr becomes a bfd_signed_vma. Besides matching sizes with
various other types involved in handling sections, this should make
it easier for bfd to support a 64 bit off_t on 32 bit hosts that
provide it.
o I've made the H_GET_* and H_PUT_* macros (which invoke bfd_h_{get,put}_*)
generally available. They now cast their args to bfd_vma and
bfd_byte * as appropriate, which removes a swag of casts from the
source.
o Bug fixes to bfd_get8, aix386_core_vec, elf32_h8_relax_section, and
aout-encap.c.
o Zillions of formatting and -Wconversion fixes.
2001-09-18 11:57:26 +02:00
|
|
|
|
amt = (bfd_size_type) datasec->reloc_count * 12;
|
|
|
|
|
relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
|
2000-07-22 01:31:53 +02:00
|
|
|
|
if (relsec->contents == NULL)
|
2002-11-30 09:39:46 +01:00
|
|
|
|
return FALSE;
|
2000-07-22 01:31:53 +02:00
|
|
|
|
|
|
|
|
|
p = relsec->contents;
|
|
|
|
|
|
|
|
|
|
for (; irel < irelend; irel++, p += 12)
|
|
|
|
|
{
|
|
|
|
|
asection *targetsec;
|
|
|
|
|
|
|
|
|
|
/* We are going to write a four byte longword into the runtime
|
|
|
|
|
reloc section. The longword will be the address in the data
|
|
|
|
|
section which must be relocated. It is followed by the name
|
|
|
|
|
of the target section NUL-padded or truncated to 8
|
|
|
|
|
characters. */
|
|
|
|
|
|
|
|
|
|
/* We can only relocate absolute longword relocs at run time. */
|
|
|
|
|
if (irel->r_type != R_RELLONG)
|
|
|
|
|
{
|
|
|
|
|
*errmsg = _("unsupported reloc type");
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
2002-11-30 09:39:46 +01:00
|
|
|
|
return FALSE;
|
2000-07-22 01:31:53 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (irel->r_symndx == -1)
|
|
|
|
|
targetsec = bfd_abs_section_ptr;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
struct coff_link_hash_entry *h;
|
2000-11-11 20:03:23 +01:00
|
|
|
|
|
2000-07-22 01:31:53 +02:00
|
|
|
|
h = obj_coff_sym_hashes (abfd)[irel->r_symndx];
|
|
|
|
|
if (h == NULL)
|
|
|
|
|
{
|
|
|
|
|
struct internal_syment isym;
|
2000-11-11 20:03:23 +01:00
|
|
|
|
|
2000-07-22 01:31:53 +02:00
|
|
|
|
bfd_coff_swap_sym_in (abfd, extsyms + symesz * irel->r_symndx,
|
|
|
|
|
&isym);
|
|
|
|
|
targetsec = coff_section_from_bfd_index (abfd, isym.n_scnum);
|
|
|
|
|
}
|
|
|
|
|
else if (h->root.type == bfd_link_hash_defined
|
|
|
|
|
|| h->root.type == bfd_link_hash_defweak)
|
|
|
|
|
targetsec = h->root.u.def.section;
|
|
|
|
|
else
|
|
|
|
|
targetsec = NULL;
|
|
|
|
|
}
|
2000-11-11 20:03:23 +01:00
|
|
|
|
|
2000-07-22 01:31:53 +02:00
|
|
|
|
bfd_put_32 (abfd,
|
|
|
|
|
(irel->r_vaddr - datasec->vma + datasec->output_offset), p);
|
|
|
|
|
memset (p + 4, 0, 8);
|
2000-09-10 21:17:08 +02:00
|
|
|
|
if (targetsec != NULL)
|
2005-02-20 15:59:07 +01:00
|
|
|
|
strncpy ((char *) p + 4, targetsec->output_section->name, 8);
|
2000-07-22 01:31:53 +02:00
|
|
|
|
}
|
2000-11-11 20:03:23 +01:00
|
|
|
|
|
2002-11-30 09:39:46 +01:00
|
|
|
|
return TRUE;
|
2000-07-22 01:31:53 +02:00
|
|
|
|
}
|
|
|
|
|
#endif /* neither ONLY_DECLARE_RELOCS not STATIC_RELOCS */
|
1999-05-03 09:29:11 +02:00
|
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|
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#define coff_bfd_is_local_label_name m68k_coff_is_local_label_name
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#define coff_relocate_section _bfd_coff_generic_relocate_section
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#include "coffcode.h"
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#ifndef TARGET_SYM
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#define TARGET_SYM m68kcoff_vec
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#endif
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#ifndef TARGET_NAME
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#define TARGET_NAME "coff-m68k"
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#endif
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#ifdef NAMES_HAVE_UNDERSCORE
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2003-06-04 12:47:33 +02:00
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CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE)
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1999-05-03 09:29:11 +02:00
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#else
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2003-06-04 12:47:33 +02:00
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CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, 0, NULL, COFF_SWAP_TABLE)
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1999-05-03 09:29:11 +02:00
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#endif
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