/* BFD back-end for Motorola MCore COFF/PE
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/* BFD back-end for Motorola MCore COFF/PE
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Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
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Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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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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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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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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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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(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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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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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along with this program; if not, write to the Free Software
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Foundation, 51 Franklin Street - Fifth Floor,
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Foundation, 51 Franklin Street - Fifth Floor,
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Boston, MA 02110-1301, USA. */
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Boston, MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfd.h"
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#include "libbfd.h"
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#include "libbfd.h"
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#include "coff/mcore.h"
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#include "coff/mcore.h"
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#include "coff/internal.h"
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#include "coff/internal.h"
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#include "coff/pe.h"
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#include "coff/pe.h"
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#include "libcoff.h"
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#include "libcoff.h"
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#ifdef BADMAG
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#ifdef BADMAG
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#undef BADMAG
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#undef BADMAG
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#endif
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#endif
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#define BADMAG(x) MCOREBADMAG(x)
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#define BADMAG(x) MCOREBADMAG(x)
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#ifndef NUM_ELEM
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#ifndef NUM_ELEM
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#define NUM_ELEM(A) (sizeof (A) / sizeof (A)[0])
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#define NUM_ELEM(A) (sizeof (A) / sizeof (A)[0])
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#endif
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#endif
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/* This file is compiled more than once, but we only compile the
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/* This file is compiled more than once, but we only compile the
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final_link routine once. */
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final_link routine once. */
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extern bfd_boolean mcore_bfd_coff_final_link
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extern bfd_boolean mcore_bfd_coff_final_link
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PARAMS ((bfd *, struct bfd_link_info *));
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PARAMS ((bfd *, struct bfd_link_info *));
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static bfd_reloc_status_type mcore_coff_unsupported_reloc
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static bfd_reloc_status_type mcore_coff_unsupported_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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static bfd_boolean coff_mcore_relocate_section
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static bfd_boolean coff_mcore_relocate_section
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PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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struct internal_reloc *, struct internal_syment *, asection **));
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struct internal_reloc *, struct internal_syment *, asection **));
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static reloc_howto_type *mcore_coff_reloc_type_lookup
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static reloc_howto_type *mcore_coff_reloc_type_lookup
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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static reloc_howto_type *coff_mcore_rtype_to_howto
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static reloc_howto_type *coff_mcore_rtype_to_howto
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PARAMS ((bfd *, asection *, struct internal_reloc *,
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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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struct coff_link_hash_entry *, struct internal_syment *,
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bfd_vma *));
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bfd_vma *));
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static bfd_boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *));
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static bfd_boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *));
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/* The NT loader points the toc register to &toc + 32768, in order to
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/* The NT loader points the toc register to &toc + 32768, in order to
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use the complete range of a 16-bit displacement. We have to adjust
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use the complete range of a 16-bit displacement. We have to adjust
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for this when we fix up loads displaced off the toc reg. */
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for this when we fix up loads displaced off the toc reg. */
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#define TOC_LOAD_ADJUSTMENT (-32768)
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#define TOC_LOAD_ADJUSTMENT (-32768)
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#define TOC_SECTION_NAME ".private.toc"
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#define TOC_SECTION_NAME ".private.toc"
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/* The main body of code is in coffcode.h. */
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/* The main body of code is in coffcode.h. */
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#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2
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#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2
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/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
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/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
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from smaller values. Start with zero, widen, *then* decrement. */
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from smaller values. Start with zero, widen, *then* decrement. */
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#define MINUS_ONE (((bfd_vma)0) - 1)
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#define MINUS_ONE (((bfd_vma)0) - 1)
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static reloc_howto_type mcore_coff_howto_table[] =
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static reloc_howto_type mcore_coff_howto_table[] =
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{
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{
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/* Unused: */
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/* Unused: */
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HOWTO (IMAGE_REL_MCORE_ABSOLUTE,/* type */
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HOWTO (IMAGE_REL_MCORE_ABSOLUTE,/* type */
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0, /* rightshift */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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0, /* bitsize */
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FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_dont, /* dont complain_on_overflow */
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complain_overflow_dont, /* dont complain_on_overflow */
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NULL, /* special_function */
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NULL, /* special_function */
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"ABSOLUTE", /* name */
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"ABSOLUTE", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x00, /* src_mask */
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0x00, /* src_mask */
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0x00, /* dst_mask */
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0x00, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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HOWTO (IMAGE_REL_MCORE_ADDR32,/* type */
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HOWTO (IMAGE_REL_MCORE_ADDR32,/* type */
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0, /* rightshift */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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32, /* bitsize */
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FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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NULL, /* special_function */
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NULL, /* special_function */
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"ADDR32", /* name */
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"ADDR32", /* name */
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TRUE, /* partial_inplace */
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TRUE, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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0xffffffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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/* 8 bits + 2 zero bits; jmpi/jsri/lrw instructions.
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/* 8 bits + 2 zero bits; jmpi/jsri/lrw instructions.
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Should not appear in object files. */
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Should not appear in object files. */
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HOWTO (IMAGE_REL_MCORE_PCREL_IMM8BY4, /* type */
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HOWTO (IMAGE_REL_MCORE_PCREL_IMM8BY4, /* type */
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2, /* rightshift */
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2, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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8, /* bitsize */
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TRUE, /* pc_relative */
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TRUE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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mcore_coff_unsupported_reloc, /* special_function */
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mcore_coff_unsupported_reloc, /* special_function */
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"IMM8BY4", /* name */
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"IMM8BY4", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* src_mask */
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0, /* dst_mask */
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0, /* dst_mask */
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TRUE), /* pcrel_offset */
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TRUE), /* pcrel_offset */
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/* bsr/bt/bf/br instructions; 11 bits + 1 zero bit
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/* bsr/bt/bf/br instructions; 11 bits + 1 zero bit
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Span 2k instructions == 4k bytes.
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Span 2k instructions == 4k bytes.
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Only useful pieces at the relocated address are the opcode (5 bits) */
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Only useful pieces at the relocated address are the opcode (5 bits) */
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HOWTO (IMAGE_REL_MCORE_PCREL_IMM11BY2,/* type */
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HOWTO (IMAGE_REL_MCORE_PCREL_IMM11BY2,/* type */
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1, /* rightshift */
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1, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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11, /* bitsize */
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11, /* bitsize */
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TRUE, /* pc_relative */
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TRUE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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complain_overflow_signed, /* complain_on_overflow */
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NULL, /* special_function */
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NULL, /* special_function */
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"IMM11BY2", /* name */
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"IMM11BY2", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x0, /* src_mask */
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0x0, /* src_mask */
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0x7ff, /* dst_mask */
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0x7ff, /* dst_mask */
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TRUE), /* pcrel_offset */
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TRUE), /* pcrel_offset */
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/* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported. */
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/* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported. */
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HOWTO (IMAGE_REL_MCORE_PCREL_IMM4BY2, /* type */
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HOWTO (IMAGE_REL_MCORE_PCREL_IMM4BY2, /* type */
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1, /* rightshift */
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1, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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4, /* bitsize */
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4, /* bitsize */
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TRUE, /* pc_relative */
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TRUE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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mcore_coff_unsupported_reloc, /* special_function */
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mcore_coff_unsupported_reloc, /* special_function */
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"IMM4BY2", /* name */
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"IMM4BY2", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* src_mask */
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0, /* dst_mask */
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0, /* dst_mask */
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TRUE), /* pcrel_offset */
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TRUE), /* pcrel_offset */
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/* 32-bit pc-relative. Eventually this will help support PIC code. */
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/* 32-bit pc-relative. Eventually this will help support PIC code. */
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HOWTO (IMAGE_REL_MCORE_PCREL_32,/* type */
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HOWTO (IMAGE_REL_MCORE_PCREL_32,/* type */
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0, /* rightshift */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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32, /* bitsize */
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TRUE, /* pc_relative */
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TRUE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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NULL, /* special_function */
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NULL, /* special_function */
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"PCREL_32", /* name */
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"PCREL_32", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x0, /* src_mask */
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0x0, /* src_mask */
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0xffffffff, /* dst_mask */
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0xffffffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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TRUE), /* pcrel_offset */
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/* Like PCREL_IMM11BY2, this relocation indicates that there is a
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/* Like PCREL_IMM11BY2, this relocation indicates that there is a
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'jsri' at the specified address. There is a separate relocation
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'jsri' at the specified address. There is a separate relocation
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entry for the literal pool entry that it references, but we
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entry for the literal pool entry that it references, but we
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might be able to change the jsri to a bsr if the target turns out
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might be able to change the jsri to a bsr if the target turns out
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to be close enough [even though we won't reclaim the literal pool
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to be close enough [even though we won't reclaim the literal pool
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entry, we'll get some runtime efficiency back]. Note that this
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entry, we'll get some runtime efficiency back]. Note that this
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is a relocation that we are allowed to safely ignore. */
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is a relocation that we are allowed to safely ignore. */
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HOWTO (IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2,/* type */
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HOWTO (IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2,/* type */
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1, /* rightshift */
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1, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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11, /* bitsize */
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11, /* bitsize */
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TRUE, /* pc_relative */
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TRUE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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complain_overflow_signed, /* complain_on_overflow */
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NULL, /* special_function */
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NULL, /* special_function */
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"JSR_IMM11BY2", /* name */
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"JSR_IMM11BY2", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x0, /* src_mask */
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0x0, /* src_mask */
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0x7ff, /* dst_mask */
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0x7ff, /* dst_mask */
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TRUE), /* pcrel_offset */
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TRUE), /* pcrel_offset */
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HOWTO (IMAGE_REL_MCORE_RVA, /* type */
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HOWTO (IMAGE_REL_MCORE_RVA, /* type */
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0, /* rightshift */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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32, /* bitsize */
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FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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complain_overflow_signed, /* complain_on_overflow */
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NULL, /* special_function */
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NULL, /* special_function */
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"MCORE_RVA", /* name */
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"MCORE_RVA", /* name */
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TRUE, /* partial_inplace */
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TRUE, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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0xffffffff, /* dst_mask */
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TRUE) /* pcrel_offset */
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TRUE) /* pcrel_offset */
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};
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};
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/* Extend the coff_link_hash_table structure with a few M*Core specific fields.
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/* Extend the coff_link_hash_table structure with a few M*Core specific fields.
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This allows us to store global data here without actually creating any
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This allows us to store global data here without actually creating any
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global variables, which is a no-no in the BFD world. */
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global variables, which is a no-no in the BFD world. */
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typedef struct coff_mcore_link_hash_table
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typedef struct coff_mcore_link_hash_table
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{
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{
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/* The original coff_link_hash_table structure. MUST be first field. */
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/* The original coff_link_hash_table structure. MUST be first field. */
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struct coff_link_hash_table root;
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struct coff_link_hash_table root;
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bfd * bfd_of_toc_owner;
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bfd * bfd_of_toc_owner;
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long int global_toc_size;
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long int global_toc_size;
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long int import_table_size;
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long int import_table_size;
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long int first_thunk_address;
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long int first_thunk_address;
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long int thunk_size;
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long int thunk_size;
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}
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}
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mcore_hash_table;
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mcore_hash_table;
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/* Get the MCore coff linker hash table from a link_info structure. */
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/* Get the MCore coff linker hash table from a link_info structure. */
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#define coff_mcore_hash_table(info) \
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#define coff_mcore_hash_table(info) \
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((mcore_hash_table *) ((info)->hash))
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((mcore_hash_table *) ((info)->hash))
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/* Add an entry to the base file. */
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/* Add an entry to the base file. */
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static bfd_boolean
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static bfd_boolean
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mcore_emit_base_file_entry (struct bfd_link_info *info,
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mcore_emit_base_file_entry (struct bfd_link_info *info,
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bfd *output_bfd,
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bfd *output_bfd,
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asection *input_section,
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asection *input_section,
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bfd_vma reloc_offset)
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bfd_vma reloc_offset)
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{
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{
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bfd_vma addr = reloc_offset
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bfd_vma addr = reloc_offset
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- input_section->vma
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- input_section->vma
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+ input_section->output_offset
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+ input_section->output_offset
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+ input_section->output_section->vma;
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+ input_section->output_section->vma;
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if (coff_data (output_bfd)->pe)
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if (coff_data (output_bfd)->pe)
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addr -= pe_data (output_bfd)->pe_opthdr.ImageBase;
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addr -= pe_data (output_bfd)->pe_opthdr.ImageBase;
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if (fwrite (&addr, sizeof (addr), 1, (FILE *) info->base_file) == 1)
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if (fwrite (&addr, sizeof (addr), 1, (FILE *) info->base_file) == 1)
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return TRUE;
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return TRUE;
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bfd_set_error (bfd_error_system_call);
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bfd_set_error (bfd_error_system_call);
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return FALSE;
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return FALSE;
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}
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}
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static bfd_reloc_status_type
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static bfd_reloc_status_type
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mcore_coff_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
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mcore_coff_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
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output_bfd, error_message)
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output_bfd, error_message)
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bfd * abfd;
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bfd * abfd;
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arelent * reloc_entry;
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arelent * reloc_entry;
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asymbol * symbol ATTRIBUTE_UNUSED;
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asymbol * symbol ATTRIBUTE_UNUSED;
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PTR data ATTRIBUTE_UNUSED;
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PTR data ATTRIBUTE_UNUSED;
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asection * input_section ATTRIBUTE_UNUSED;
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asection * input_section ATTRIBUTE_UNUSED;
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bfd * output_bfd ATTRIBUTE_UNUSED;
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bfd * output_bfd ATTRIBUTE_UNUSED;
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char ** error_message ATTRIBUTE_UNUSED;
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char ** error_message ATTRIBUTE_UNUSED;
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{
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{
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BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
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BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
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_bfd_error_handler (_("%B: Relocation %s (%d) is not currently supported.\n"),
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_bfd_error_handler (_("%B: Relocation %s (%d) is not currently supported.\n"),
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abfd,
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abfd,
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reloc_entry->howto->name,
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reloc_entry->howto->name,
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reloc_entry->howto->type);
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reloc_entry->howto->type);
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return bfd_reloc_notsupported;
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return bfd_reloc_notsupported;
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}
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}
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/* A cheesy little macro to make the code a little more readable. */
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/* A cheesy little macro to make the code a little more readable. */
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#define HOW2MAP(bfd_rtype, mcore_rtype) \
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#define HOW2MAP(bfd_rtype, mcore_rtype) \
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case bfd_rtype: return & mcore_coff_howto_table [mcore_rtype]
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case bfd_rtype: return & mcore_coff_howto_table [mcore_rtype]
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static reloc_howto_type *
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static reloc_howto_type *
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mcore_coff_reloc_type_lookup (abfd, code)
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mcore_coff_reloc_type_lookup (abfd, code)
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bfd * abfd ATTRIBUTE_UNUSED;
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bfd * abfd ATTRIBUTE_UNUSED;
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bfd_reloc_code_real_type code;
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bfd_reloc_code_real_type code;
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{
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{
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switch (code)
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switch (code)
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{
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{
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HOW2MAP (BFD_RELOC_32, IMAGE_REL_MCORE_ADDR32);
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HOW2MAP (BFD_RELOC_32, IMAGE_REL_MCORE_ADDR32);
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HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM8BY4, IMAGE_REL_MCORE_PCREL_IMM8BY4);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM8BY4, IMAGE_REL_MCORE_PCREL_IMM8BY4);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM11BY2, IMAGE_REL_MCORE_PCREL_IMM11BY2);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM11BY2, IMAGE_REL_MCORE_PCREL_IMM11BY2);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM4BY2, IMAGE_REL_MCORE_PCREL_IMM4BY2);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM4BY2, IMAGE_REL_MCORE_PCREL_IMM4BY2);
|
HOW2MAP (BFD_RELOC_32_PCREL, IMAGE_REL_MCORE_PCREL_32);
|
HOW2MAP (BFD_RELOC_32_PCREL, IMAGE_REL_MCORE_PCREL_32);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2, IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2);
|
HOW2MAP (BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2, IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2);
|
HOW2MAP (BFD_RELOC_RVA, IMAGE_REL_MCORE_RVA);
|
HOW2MAP (BFD_RELOC_RVA, IMAGE_REL_MCORE_RVA);
|
default:
|
default:
|
return NULL;
|
return NULL;
|
}
|
}
|
/*NOTREACHED*/
|
/*NOTREACHED*/
|
}
|
}
|
#undef HOW2MAP
|
#undef HOW2MAP
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
mcore_coff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
mcore_coff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
const char *r_name)
|
const char *r_name)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
|
|
for (i = 0;
|
for (i = 0;
|
i < (sizeof (mcore_coff_howto_table)
|
i < (sizeof (mcore_coff_howto_table)
|
/ sizeof (mcore_coff_howto_table[0]));
|
/ sizeof (mcore_coff_howto_table[0]));
|
i++)
|
i++)
|
if (mcore_coff_howto_table[i].name != NULL
|
if (mcore_coff_howto_table[i].name != NULL
|
&& strcasecmp (mcore_coff_howto_table[i].name, r_name) == 0)
|
&& strcasecmp (mcore_coff_howto_table[i].name, r_name) == 0)
|
return &mcore_coff_howto_table[i];
|
return &mcore_coff_howto_table[i];
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
#define RTYPE2HOWTO(cache_ptr, dst) \
|
#define RTYPE2HOWTO(cache_ptr, dst) \
|
(cache_ptr)->howto = mcore_coff_howto_table + (dst)->r_type;
|
(cache_ptr)->howto = mcore_coff_howto_table + (dst)->r_type;
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
coff_mcore_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
|
coff_mcore_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
|
bfd * abfd ATTRIBUTE_UNUSED;
|
bfd * abfd ATTRIBUTE_UNUSED;
|
asection * sec;
|
asection * sec;
|
struct internal_reloc * rel;
|
struct internal_reloc * rel;
|
struct coff_link_hash_entry * h ATTRIBUTE_UNUSED;
|
struct coff_link_hash_entry * h ATTRIBUTE_UNUSED;
|
struct internal_syment * sym;
|
struct internal_syment * sym;
|
bfd_vma * addendp;
|
bfd_vma * addendp;
|
{
|
{
|
reloc_howto_type * howto;
|
reloc_howto_type * howto;
|
|
|
if (rel->r_type >= NUM_ELEM (mcore_coff_howto_table))
|
if (rel->r_type >= NUM_ELEM (mcore_coff_howto_table))
|
return NULL;
|
return NULL;
|
|
|
howto = mcore_coff_howto_table + rel->r_type;
|
howto = mcore_coff_howto_table + rel->r_type;
|
|
|
if (rel->r_type == IMAGE_REL_MCORE_RVA)
|
if (rel->r_type == IMAGE_REL_MCORE_RVA)
|
* addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase;
|
* addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase;
|
|
|
else if (howto->pc_relative)
|
else if (howto->pc_relative)
|
{
|
{
|
* addendp = sec->vma - 2; /* XXX guess - is this right ? */
|
* addendp = sec->vma - 2; /* XXX guess - is this right ? */
|
|
|
/* If the symbol is defined, then the generic code is going to
|
/* If the symbol is defined, then the generic code is going to
|
add back the symbol value in order to cancel out an
|
add back the symbol value in order to cancel out an
|
adjustment it made to the addend. However, we set the addend
|
adjustment it made to the addend. However, we set the addend
|
to 0 at the start of this function. We need to adjust here,
|
to 0 at the start of this function. We need to adjust here,
|
to avoid the adjustment the generic code will make. FIXME:
|
to avoid the adjustment the generic code will make. FIXME:
|
This is getting a bit hackish. */
|
This is getting a bit hackish. */
|
if (sym != NULL && sym->n_scnum != 0)
|
if (sym != NULL && sym->n_scnum != 0)
|
* addendp -= sym->n_value;
|
* addendp -= sym->n_value;
|
}
|
}
|
else
|
else
|
* addendp = 0;
|
* addendp = 0;
|
|
|
return howto;
|
return howto;
|
}
|
}
|
|
|
/* Return TRUE if this relocation should appear in the output .reloc section.
|
/* Return TRUE if this relocation should appear in the output .reloc section.
|
This function is referenced in pe_mkobject in peicode.h. */
|
This function is referenced in pe_mkobject in peicode.h. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
in_reloc_p (abfd, howto)
|
in_reloc_p (abfd, howto)
|
bfd * abfd ATTRIBUTE_UNUSED;
|
bfd * abfd ATTRIBUTE_UNUSED;
|
reloc_howto_type * howto;
|
reloc_howto_type * howto;
|
{
|
{
|
return ! howto->pc_relative && howto->type != IMAGE_REL_MCORE_RVA;
|
return ! howto->pc_relative && howto->type != IMAGE_REL_MCORE_RVA;
|
}
|
}
|
|
|
/* The reloc processing routine for the optimized COFF linker. */
|
/* The reloc processing routine for the optimized COFF linker. */
|
static bfd_boolean
|
static bfd_boolean
|
coff_mcore_relocate_section (output_bfd, info, input_bfd, input_section,
|
coff_mcore_relocate_section (output_bfd, info, input_bfd, input_section,
|
contents, relocs, syms, sections)
|
contents, relocs, syms, sections)
|
bfd * output_bfd;
|
bfd * output_bfd;
|
struct bfd_link_info * info;
|
struct bfd_link_info * info;
|
bfd * input_bfd;
|
bfd * input_bfd;
|
asection * input_section;
|
asection * input_section;
|
bfd_byte * contents;
|
bfd_byte * contents;
|
struct internal_reloc * relocs;
|
struct internal_reloc * relocs;
|
struct internal_syment * syms;
|
struct internal_syment * syms;
|
asection ** sections;
|
asection ** sections;
|
{
|
{
|
struct internal_reloc * rel;
|
struct internal_reloc * rel;
|
struct internal_reloc * relend;
|
struct internal_reloc * relend;
|
bfd_boolean hihalf;
|
bfd_boolean hihalf;
|
bfd_vma hihalf_val;
|
bfd_vma hihalf_val;
|
|
|
/* If we are performing a relocatable link, we don't need to do a
|
/* If we are performing a relocatable link, we don't need to do a
|
thing. The caller will take care of adjusting the reloc
|
thing. The caller will take care of adjusting the reloc
|
addresses and symbol indices. */
|
addresses and symbol indices. */
|
if (info->relocatable)
|
if (info->relocatable)
|
return TRUE;
|
return TRUE;
|
|
|
/* Check if we have the same endianess */
|
/* Check if we have the same endianess */
|
if ( input_bfd->xvec->byteorder != output_bfd->xvec->byteorder
|
if ( input_bfd->xvec->byteorder != output_bfd->xvec->byteorder
|
&& output_bfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
|
&& output_bfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B: compiled for a %s system and target is %s.\n"),
|
(_("%B: compiled for a %s system and target is %s.\n"),
|
input_bfd,
|
input_bfd,
|
bfd_big_endian (input_bfd) ? _("big endian") : _("little endian"),
|
bfd_big_endian (input_bfd) ? _("big endian") : _("little endian"),
|
bfd_big_endian (output_bfd) ? _("big endian") : _("little endian"));
|
bfd_big_endian (output_bfd) ? _("big endian") : _("little endian"));
|
|
|
bfd_set_error (bfd_error_wrong_format);
|
bfd_set_error (bfd_error_wrong_format);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
hihalf = FALSE;
|
hihalf = FALSE;
|
hihalf_val = 0;
|
hihalf_val = 0;
|
|
|
rel = relocs;
|
rel = relocs;
|
relend = rel + input_section->reloc_count;
|
relend = rel + input_section->reloc_count;
|
|
|
for (; rel < relend; rel++)
|
for (; rel < relend; rel++)
|
{
|
{
|
long symndx;
|
long symndx;
|
struct internal_syment * sym;
|
struct internal_syment * sym;
|
bfd_vma val;
|
bfd_vma val;
|
bfd_vma addend;
|
bfd_vma addend;
|
bfd_reloc_status_type rstat;
|
bfd_reloc_status_type rstat;
|
bfd_byte * loc;
|
bfd_byte * loc;
|
unsigned short r_type = rel->r_type;
|
unsigned short r_type = rel->r_type;
|
reloc_howto_type * howto = NULL;
|
reloc_howto_type * howto = NULL;
|
struct coff_link_hash_entry * h;
|
struct coff_link_hash_entry * h;
|
const char * my_name;
|
const char * my_name;
|
|
|
symndx = rel->r_symndx;
|
symndx = rel->r_symndx;
|
loc = contents + rel->r_vaddr - input_section->vma;
|
loc = contents + rel->r_vaddr - input_section->vma;
|
|
|
if (symndx == -1)
|
if (symndx == -1)
|
{
|
{
|
h = NULL;
|
h = NULL;
|
sym = NULL;
|
sym = NULL;
|
}
|
}
|
else
|
else
|
{
|
{
|
h = obj_coff_sym_hashes (input_bfd)[symndx];
|
h = obj_coff_sym_hashes (input_bfd)[symndx];
|
sym = syms + symndx;
|
sym = syms + symndx;
|
}
|
}
|
|
|
addend = 0;
|
addend = 0;
|
|
|
/* Get the howto and initialise the addend. */
|
/* Get the howto and initialise the addend. */
|
howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
|
howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
|
sym, & addend);
|
sym, & addend);
|
if (howto == NULL)
|
if (howto == NULL)
|
return FALSE;
|
return FALSE;
|
|
|
val = 0;
|
val = 0;
|
|
|
if (h == NULL)
|
if (h == NULL)
|
{
|
{
|
if (symndx == -1)
|
if (symndx == -1)
|
my_name = "*ABS*";
|
my_name = "*ABS*";
|
else
|
else
|
{
|
{
|
asection * sec = sections[symndx];
|
asection * sec = sections[symndx];
|
|
|
val = (sym->n_value
|
val = (sym->n_value
|
+ sec->output_section->vma
|
+ sec->output_section->vma
|
+ sec->output_offset);
|
+ sec->output_offset);
|
|
|
if (sym == NULL)
|
if (sym == NULL)
|
my_name = "*unknown*";
|
my_name = "*unknown*";
|
else if ( sym->_n._n_n._n_zeroes == 0
|
else if ( sym->_n._n_n._n_zeroes == 0
|
&& sym->_n._n_n._n_offset != 0)
|
&& sym->_n._n_n._n_offset != 0)
|
my_name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
|
my_name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
|
else
|
else
|
{
|
{
|
static char buf [SYMNMLEN + 1];
|
static char buf [SYMNMLEN + 1];
|
|
|
strncpy (buf, sym->_n._n_name, SYMNMLEN);
|
strncpy (buf, sym->_n._n_name, SYMNMLEN);
|
buf[SYMNMLEN] = '\0';
|
buf[SYMNMLEN] = '\0';
|
my_name = buf;
|
my_name = buf;
|
}
|
}
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
if ( h->root.type == bfd_link_hash_defined
|
if ( h->root.type == bfd_link_hash_defined
|
|| h->root.type == bfd_link_hash_defweak)
|
|| h->root.type == bfd_link_hash_defweak)
|
{
|
{
|
asection * sec = h->root.u.def.section;
|
asection * sec = h->root.u.def.section;
|
|
|
val = (h->root.u.def.value
|
val = (h->root.u.def.value
|
+ sec->output_section->vma
|
+ sec->output_section->vma
|
+ sec->output_offset);
|
+ sec->output_offset);
|
}
|
}
|
else
|
else
|
{
|
{
|
if (! ((*info->callbacks->undefined_symbol)
|
if (! ((*info->callbacks->undefined_symbol)
|
(info, h->root.root.string, input_bfd, input_section,
|
(info, h->root.root.string, input_bfd, input_section,
|
rel->r_vaddr - input_section->vma, TRUE)))
|
rel->r_vaddr - input_section->vma, TRUE)))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
my_name = h->root.root.string;
|
my_name = h->root.root.string;
|
}
|
}
|
|
|
rstat = bfd_reloc_ok;
|
rstat = bfd_reloc_ok;
|
|
|
/* Each case must do its own relocation, setting rstat appropriately. */
|
/* Each case must do its own relocation, setting rstat appropriately. */
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
default:
|
default:
|
_bfd_error_handler (_("%B: unsupported relocation type 0x%02x"),
|
_bfd_error_handler (_("%B: unsupported relocation type 0x%02x"),
|
input_bfd, r_type);
|
input_bfd, r_type);
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
|
|
case IMAGE_REL_MCORE_ABSOLUTE:
|
case IMAGE_REL_MCORE_ABSOLUTE:
|
_bfd_error_handler
|
_bfd_error_handler
|
(_("Warning: unsupported reloc %s <file %B, section %A>\n"
|
(_("Warning: unsupported reloc %s <file %B, section %A>\n"
|
"sym %ld (%s), r_vaddr %ld (%lx)"),
|
"sym %ld (%s), r_vaddr %ld (%lx)"),
|
input_bfd, input_section, howto->name,
|
input_bfd, input_section, howto->name,
|
rel->r_symndx, my_name, (long) rel->r_vaddr,
|
rel->r_symndx, my_name, (long) rel->r_vaddr,
|
(unsigned long) rel->r_vaddr);
|
(unsigned long) rel->r_vaddr);
|
break;
|
break;
|
|
|
case IMAGE_REL_MCORE_PCREL_IMM8BY4:
|
case IMAGE_REL_MCORE_PCREL_IMM8BY4:
|
case IMAGE_REL_MCORE_PCREL_IMM11BY2:
|
case IMAGE_REL_MCORE_PCREL_IMM11BY2:
|
case IMAGE_REL_MCORE_PCREL_IMM4BY2:
|
case IMAGE_REL_MCORE_PCREL_IMM4BY2:
|
case IMAGE_REL_MCORE_PCREL_32:
|
case IMAGE_REL_MCORE_PCREL_32:
|
case IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2:
|
case IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2:
|
case IMAGE_REL_MCORE_ADDR32:
|
case IMAGE_REL_MCORE_ADDR32:
|
/* XXX fixme - shouldn't this be like the code for the RVA reloc ? */
|
/* XXX fixme - shouldn't this be like the code for the RVA reloc ? */
|
rstat = _bfd_relocate_contents (howto, input_bfd, val, loc);
|
rstat = _bfd_relocate_contents (howto, input_bfd, val, loc);
|
break;
|
break;
|
|
|
case IMAGE_REL_MCORE_RVA:
|
case IMAGE_REL_MCORE_RVA:
|
rstat = _bfd_final_link_relocate
|
rstat = _bfd_final_link_relocate
|
(howto, input_bfd,
|
(howto, input_bfd,
|
input_section, contents, rel->r_vaddr - input_section->vma,
|
input_section, contents, rel->r_vaddr - input_section->vma,
|
val, addend);
|
val, addend);
|
break;
|
break;
|
}
|
}
|
|
|
/* Emit a reloc if the backend thinks it needs it. */
|
/* Emit a reloc if the backend thinks it needs it. */
|
if (info->base_file
|
if (info->base_file
|
&& sym
|
&& sym
|
&& pe_data (output_bfd)->in_reloc_p (output_bfd, howto)
|
&& pe_data (output_bfd)->in_reloc_p (output_bfd, howto)
|
&& !mcore_emit_base_file_entry (info, output_bfd, input_section,
|
&& !mcore_emit_base_file_entry (info, output_bfd, input_section,
|
rel->r_vaddr))
|
rel->r_vaddr))
|
return FALSE;
|
return FALSE;
|
|
|
switch (rstat)
|
switch (rstat)
|
{
|
{
|
default:
|
default:
|
abort ();
|
abort ();
|
|
|
case bfd_reloc_ok:
|
case bfd_reloc_ok:
|
break;
|
break;
|
|
|
case bfd_reloc_overflow:
|
case bfd_reloc_overflow:
|
if (! ((*info->callbacks->reloc_overflow)
|
if (! ((*info->callbacks->reloc_overflow)
|
(info, (h ? &h->root : NULL), my_name, howto->name,
|
(info, (h ? &h->root : NULL), my_name, howto->name,
|
(bfd_vma) 0, input_bfd,
|
(bfd_vma) 0, input_bfd,
|
input_section, rel->r_vaddr - input_section->vma)))
|
input_section, rel->r_vaddr - input_section->vma)))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Tailor coffcode.h -- macro heaven. */
|
/* Tailor coffcode.h -- macro heaven. */
|
|
|
/* We use the special COFF backend linker, with our own special touch. */
|
/* We use the special COFF backend linker, with our own special touch. */
|
|
|
#define coff_bfd_reloc_type_lookup mcore_coff_reloc_type_lookup
|
#define coff_bfd_reloc_type_lookup mcore_coff_reloc_type_lookup
|
#define coff_bfd_reloc_name_lookup mcore_coff_reloc_name_lookup
|
#define coff_bfd_reloc_name_lookup mcore_coff_reloc_name_lookup
|
#define coff_relocate_section coff_mcore_relocate_section
|
#define coff_relocate_section coff_mcore_relocate_section
|
#define coff_rtype_to_howto coff_mcore_rtype_to_howto
|
#define coff_rtype_to_howto coff_mcore_rtype_to_howto
|
|
|
#define SELECT_RELOC(internal, howto) {internal.r_type = howto->type;}
|
#define SELECT_RELOC(internal, howto) {internal.r_type = howto->type;}
|
|
|
/* Make sure that the 'r_offset' field is copied properly
|
/* Make sure that the 'r_offset' field is copied properly
|
so that identical binaries will compare the same. */
|
so that identical binaries will compare the same. */
|
#define SWAP_IN_RELOC_OFFSET H_GET_32
|
#define SWAP_IN_RELOC_OFFSET H_GET_32
|
#define SWAP_OUT_RELOC_OFFSET H_PUT_32
|
#define SWAP_OUT_RELOC_OFFSET H_PUT_32
|
|
|
#define COFF_PAGE_SIZE 0x1000
|
#define COFF_PAGE_SIZE 0x1000
|
|
|
#include "coffcode.h"
|
#include "coffcode.h"
|
|
|
/* Forward declaration to initialise alternative_target field. */
|
/* Forward declaration to initialise alternative_target field. */
|
extern const bfd_target TARGET_LITTLE_SYM;
|
extern const bfd_target TARGET_LITTLE_SYM;
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/* The transfer vectors that lead the outside world to all of the above. */
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/* The transfer vectors that lead the outside world to all of the above. */
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CREATE_BIG_COFF_TARGET_VEC (TARGET_BIG_SYM, TARGET_BIG_NAME, D_PAGED,
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CREATE_BIG_COFF_TARGET_VEC (TARGET_BIG_SYM, TARGET_BIG_NAME, D_PAGED,
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(SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_READONLY | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
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(SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_READONLY | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
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0, & TARGET_LITTLE_SYM, COFF_SWAP_TABLE)
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0, & TARGET_LITTLE_SYM, COFF_SWAP_TABLE)
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CREATE_LITTLE_COFF_TARGET_VEC (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, D_PAGED,
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CREATE_LITTLE_COFF_TARGET_VEC (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, D_PAGED,
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(SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_READONLY | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
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(SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_READONLY | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
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0, & TARGET_BIG_SYM, COFF_SWAP_TABLE)
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0, & TARGET_BIG_SYM, COFF_SWAP_TABLE)
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