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jeremybenn |
/* BFD back-end for Texas Instruments TMS320C80 Multimedia Video Processor (MVP).
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Copyright 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
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Free Software Foundation, Inc.
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Written by Fred Fish (fnf@cygnus.com)
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There is nothing new under the sun. This file draws a lot on other
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coff files.
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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 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, 51 Franklin Street - Fifth Floor,
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Boston, MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfdlink.h"
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#include "libbfd.h"
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#ifdef _CONST
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/* Newlib-based hosts define _CONST as a STDC-safe alias for const,
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but to the tic80 toolchain it means something altogether different.
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Since sysdep.h will have pulled in stdio.h and hence _ansi.h which
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contains this definition, we must undef it before including the
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tic80-specific definition. */
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#undef _CONST
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#endif /* _CONST */
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#include "coff/tic80.h"
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#include "coff/internal.h"
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#include "libcoff.h"
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#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
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#define COFF_ALIGN_IN_SECTION_HEADER 1
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#define COFF_ALIGN_IN_SFLAGS 1
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#define GET_SCNHDR_FLAGS H_GET_16
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#define PUT_SCNHDR_FLAGS H_PUT_16
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static void rtype2howto
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PARAMS ((arelent *cache_ptr, struct internal_reloc *dst));
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static bfd_reloc_status_type ppbase_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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static bfd_reloc_status_type glob15_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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static bfd_reloc_status_type glob16_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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static bfd_reloc_status_type local16_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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static bfd_boolean coff_tic80_relocate_section
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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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static reloc_howto_type * coff_tic80_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 tic80_howto_table[] =
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{
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HOWTO (R_RELLONG, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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NULL, /* special_function */
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"RELLONG", /* name */
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TRUE, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_MPPCR, /* type */
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2, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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TRUE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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NULL, /* special_function */
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"MPPCR", /* name */
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TRUE, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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HOWTO (R_ABS, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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NULL, /* special_function */
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"ABS", /* name */
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TRUE, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_PPBASE, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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ppbase_reloc, /* special_function */
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"PPBASE", /* name */
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TRUE, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_PPLBASE, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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ppbase_reloc, /* special_function */
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"PPLBASE", /* name */
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TRUE, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_PP15, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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15, /* bitsize */
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FALSE, /* pc_relative */
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6, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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glob15_reloc, /* special_function */
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"PP15", /* name */
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TRUE, /* partial_inplace */
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0x1ffc0, /* src_mask */
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0x1ffc0, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_PP15W, /* type */
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2, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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15, /* bitsize */
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FALSE, /* pc_relative */
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6, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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glob15_reloc, /* special_function */
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"PP15W", /* name */
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TRUE, /* partial_inplace */
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0x1ffc0, /* src_mask */
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0x1ffc0, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_PP15H, /* type */
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1, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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15, /* bitsize */
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FALSE, /* pc_relative */
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6, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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glob15_reloc, /* special_function */
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"PP15H", /* name */
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TRUE, /* partial_inplace */
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0x1ffc0, /* src_mask */
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0x1ffc0, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_PP16B, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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6, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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glob16_reloc, /* special_function */
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"PP16B", /* name */
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TRUE, /* partial_inplace */
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0x3ffc0, /* src_mask */
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0x3ffc0, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_PPL15, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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15, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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NULL, /* special_function */
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"PPL15", /* name */
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TRUE, /* partial_inplace */
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0x7fff, /* src_mask */
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0x7fff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_PPL15W, /* type */
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2, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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15, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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NULL, /* special_function */
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"PPL15W", /* name */
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TRUE, /* partial_inplace */
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0x7fff, /* src_mask */
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0x7fff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_PPL15H, /* type */
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1, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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15, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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NULL, /* special_function */
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"PPL15H", /* name */
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TRUE, /* partial_inplace */
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0x7fff, /* src_mask */
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0x7fff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_PPL16B, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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FALSE, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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local16_reloc, /* special_function */
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"PPL16B", /* name */
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TRUE, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_PPN15, /* type */
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0, /* rightshift */
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-2, /* size (0 = byte, 1 = short, 2 = long) */
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15, /* bitsize */
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FALSE, /* pc_relative */
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6, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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glob15_reloc, /* special_function */
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"PPN15", /* name */
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TRUE, /* partial_inplace */
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0x1ffc0, /* src_mask */
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| 264 |
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0x1ffc0, /* dst_mask */
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| 265 |
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FALSE), /* pcrel_offset */
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HOWTO (R_PPN15W, /* type */
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| 268 |
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2, /* rightshift */
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-2, /* size (0 = byte, 1 = short, 2 = long) */
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| 270 |
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15, /* bitsize */
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| 271 |
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FALSE, /* pc_relative */
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| 272 |
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6, /* bitpos */
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| 273 |
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complain_overflow_dont, /* complain_on_overflow */
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| 274 |
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glob15_reloc, /* special_function */
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| 275 |
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"PPN15W", /* name */
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| 276 |
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TRUE, /* partial_inplace */
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| 277 |
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0x1ffc0, /* src_mask */
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| 278 |
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0x1ffc0, /* dst_mask */
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| 279 |
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FALSE), /* pcrel_offset */
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| 280 |
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| 281 |
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HOWTO (R_PPN15H, /* type */
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| 282 |
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1, /* rightshift */
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| 283 |
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-2, /* size (0 = byte, 1 = short, 2 = long) */
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| 284 |
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15, /* bitsize */
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| 285 |
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FALSE, /* pc_relative */
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| 286 |
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6, /* bitpos */
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| 287 |
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complain_overflow_dont, /* complain_on_overflow */
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| 288 |
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glob15_reloc, /* special_function */
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| 289 |
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"PPN15H", /* name */
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| 290 |
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TRUE, /* partial_inplace */
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| 291 |
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0x1ffc0, /* src_mask */
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| 292 |
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0x1ffc0, /* dst_mask */
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| 293 |
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FALSE), /* pcrel_offset */
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| 294 |
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| 295 |
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HOWTO (R_PPN16B, /* type */
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| 296 |
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0, /* rightshift */
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| 297 |
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-2, /* size (0 = byte, 1 = short, 2 = long) */
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| 298 |
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16, /* bitsize */
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| 299 |
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FALSE, /* pc_relative */
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| 300 |
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6, /* bitpos */
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| 301 |
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complain_overflow_dont, /* complain_on_overflow */
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| 302 |
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glob16_reloc, /* special_function */
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"PPN16B", /* name */
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| 304 |
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TRUE, /* partial_inplace */
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| 305 |
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0x3ffc0, /* src_mask */
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| 306 |
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0x3ffc0, /* dst_mask */
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| 307 |
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FALSE), /* pcrel_offset */
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| 308 |
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| 309 |
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HOWTO (R_PPLN15, /* type */
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| 310 |
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0, /* rightshift */
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| 311 |
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-2, /* size (0 = byte, 1 = short, 2 = long) */
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| 312 |
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15, /* bitsize */
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| 313 |
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FALSE, /* pc_relative */
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| 314 |
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0, /* bitpos */
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| 315 |
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complain_overflow_dont, /* complain_on_overflow */
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| 316 |
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NULL, /* special_function */
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| 317 |
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"PPLN15", /* name */
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| 318 |
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TRUE, /* partial_inplace */
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| 319 |
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0x7fff, /* src_mask */
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| 320 |
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0x7fff, /* dst_mask */
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| 321 |
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FALSE), /* pcrel_offset */
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| 322 |
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| 323 |
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HOWTO (R_PPLN15W, /* type */
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| 324 |
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2, /* rightshift */
|
| 325 |
|
|
-2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 326 |
|
|
15, /* bitsize */
|
| 327 |
|
|
FALSE, /* pc_relative */
|
| 328 |
|
|
0, /* bitpos */
|
| 329 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 330 |
|
|
NULL, /* special_function */
|
| 331 |
|
|
"PPLN15W", /* name */
|
| 332 |
|
|
TRUE, /* partial_inplace */
|
| 333 |
|
|
0x7fff, /* src_mask */
|
| 334 |
|
|
0x7fff, /* dst_mask */
|
| 335 |
|
|
FALSE), /* pcrel_offset */
|
| 336 |
|
|
|
| 337 |
|
|
HOWTO (R_PPLN15H, /* type */
|
| 338 |
|
|
1, /* rightshift */
|
| 339 |
|
|
-2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 340 |
|
|
15, /* bitsize */
|
| 341 |
|
|
FALSE, /* pc_relative */
|
| 342 |
|
|
0, /* bitpos */
|
| 343 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 344 |
|
|
NULL, /* special_function */
|
| 345 |
|
|
"PPLN15H", /* name */
|
| 346 |
|
|
TRUE, /* partial_inplace */
|
| 347 |
|
|
0x7fff, /* src_mask */
|
| 348 |
|
|
0x7fff, /* dst_mask */
|
| 349 |
|
|
FALSE), /* pcrel_offset */
|
| 350 |
|
|
|
| 351 |
|
|
HOWTO (R_PPLN16B, /* type */
|
| 352 |
|
|
0, /* rightshift */
|
| 353 |
|
|
-2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 354 |
|
|
15, /* bitsize */
|
| 355 |
|
|
FALSE, /* pc_relative */
|
| 356 |
|
|
0, /* bitpos */
|
| 357 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 358 |
|
|
local16_reloc, /* special_function */
|
| 359 |
|
|
"PPLN16B", /* name */
|
| 360 |
|
|
TRUE, /* partial_inplace */
|
| 361 |
|
|
0xffff, /* src_mask */
|
| 362 |
|
|
0xffff, /* dst_mask */
|
| 363 |
|
|
FALSE) /* pcrel_offset */
|
| 364 |
|
|
};
|
| 365 |
|
|
|
| 366 |
|
|
/* Special relocation functions, used when the output file is not
|
| 367 |
|
|
itself a COFF TIc80 file. */
|
| 368 |
|
|
|
| 369 |
|
|
/* This special function is used for the base address type
|
| 370 |
|
|
relocations. */
|
| 371 |
|
|
|
| 372 |
|
|
static bfd_reloc_status_type
|
| 373 |
|
|
ppbase_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
|
| 374 |
|
|
error_message)
|
| 375 |
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
| 376 |
|
|
arelent *reloc_entry ATTRIBUTE_UNUSED;
|
| 377 |
|
|
asymbol *symbol_in ATTRIBUTE_UNUSED;
|
| 378 |
|
|
PTR data ATTRIBUTE_UNUSED;
|
| 379 |
|
|
asection *input_section ATTRIBUTE_UNUSED;
|
| 380 |
|
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
| 381 |
|
|
char **error_message ATTRIBUTE_UNUSED;
|
| 382 |
|
|
{
|
| 383 |
|
|
/* FIXME. */
|
| 384 |
|
|
abort ();
|
| 385 |
|
|
}
|
| 386 |
|
|
|
| 387 |
|
|
/* This special function is used for the global 15 bit relocations. */
|
| 388 |
|
|
|
| 389 |
|
|
static bfd_reloc_status_type
|
| 390 |
|
|
glob15_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
|
| 391 |
|
|
error_message)
|
| 392 |
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
| 393 |
|
|
arelent *reloc_entry ATTRIBUTE_UNUSED;
|
| 394 |
|
|
asymbol *symbol_in ATTRIBUTE_UNUSED;
|
| 395 |
|
|
PTR data ATTRIBUTE_UNUSED;
|
| 396 |
|
|
asection *input_section ATTRIBUTE_UNUSED;
|
| 397 |
|
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
| 398 |
|
|
char **error_message ATTRIBUTE_UNUSED;
|
| 399 |
|
|
{
|
| 400 |
|
|
/* FIXME. */
|
| 401 |
|
|
abort ();
|
| 402 |
|
|
}
|
| 403 |
|
|
|
| 404 |
|
|
/* This special function is used for the global 16 bit relocations. */
|
| 405 |
|
|
|
| 406 |
|
|
static bfd_reloc_status_type
|
| 407 |
|
|
glob16_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
|
| 408 |
|
|
error_message)
|
| 409 |
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
| 410 |
|
|
arelent *reloc_entry ATTRIBUTE_UNUSED;
|
| 411 |
|
|
asymbol *symbol_in ATTRIBUTE_UNUSED;
|
| 412 |
|
|
PTR data ATTRIBUTE_UNUSED;
|
| 413 |
|
|
asection *input_section ATTRIBUTE_UNUSED;
|
| 414 |
|
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
| 415 |
|
|
char **error_message ATTRIBUTE_UNUSED;
|
| 416 |
|
|
{
|
| 417 |
|
|
/* FIXME. */
|
| 418 |
|
|
abort ();
|
| 419 |
|
|
}
|
| 420 |
|
|
|
| 421 |
|
|
/* This special function is used for the local 16 bit relocations. */
|
| 422 |
|
|
|
| 423 |
|
|
static bfd_reloc_status_type
|
| 424 |
|
|
local16_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
|
| 425 |
|
|
error_message)
|
| 426 |
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
| 427 |
|
|
arelent *reloc_entry ATTRIBUTE_UNUSED;
|
| 428 |
|
|
asymbol *symbol_in ATTRIBUTE_UNUSED;
|
| 429 |
|
|
PTR data ATTRIBUTE_UNUSED;
|
| 430 |
|
|
asection *input_section ATTRIBUTE_UNUSED;
|
| 431 |
|
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
| 432 |
|
|
char **error_message ATTRIBUTE_UNUSED;
|
| 433 |
|
|
{
|
| 434 |
|
|
/* FIXME. */
|
| 435 |
|
|
abort ();
|
| 436 |
|
|
}
|
| 437 |
|
|
|
| 438 |
|
|
/* Code to turn an external r_type into a pointer to an entry in the howto_table.
|
| 439 |
|
|
If passed an r_type we don't recognize the abort rather than silently failing
|
| 440 |
|
|
to generate an output file. */
|
| 441 |
|
|
|
| 442 |
|
|
static void
|
| 443 |
|
|
rtype2howto (cache_ptr, dst)
|
| 444 |
|
|
arelent *cache_ptr;
|
| 445 |
|
|
struct internal_reloc *dst;
|
| 446 |
|
|
{
|
| 447 |
|
|
unsigned int i;
|
| 448 |
|
|
|
| 449 |
|
|
for (i = 0; i < sizeof tic80_howto_table / sizeof tic80_howto_table[0]; i++)
|
| 450 |
|
|
{
|
| 451 |
|
|
if (tic80_howto_table[i].type == dst->r_type)
|
| 452 |
|
|
{
|
| 453 |
|
|
cache_ptr->howto = tic80_howto_table + i;
|
| 454 |
|
|
return;
|
| 455 |
|
|
}
|
| 456 |
|
|
}
|
| 457 |
|
|
|
| 458 |
|
|
(*_bfd_error_handler) (_("Unrecognized reloc type 0x%x"),
|
| 459 |
|
|
(unsigned int) dst->r_type);
|
| 460 |
|
|
cache_ptr->howto = tic80_howto_table + 0;
|
| 461 |
|
|
}
|
| 462 |
|
|
|
| 463 |
|
|
#define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst)
|
| 464 |
|
|
#define coff_rtype_to_howto coff_tic80_rtype_to_howto
|
| 465 |
|
|
|
| 466 |
|
|
static reloc_howto_type *
|
| 467 |
|
|
coff_tic80_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
|
| 468 |
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
| 469 |
|
|
asection *sec;
|
| 470 |
|
|
struct internal_reloc *rel;
|
| 471 |
|
|
struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
|
| 472 |
|
|
struct internal_syment *sym ATTRIBUTE_UNUSED;
|
| 473 |
|
|
bfd_vma *addendp;
|
| 474 |
|
|
{
|
| 475 |
|
|
arelent genrel;
|
| 476 |
|
|
|
| 477 |
|
|
if (rel -> r_symndx == -1 && addendp != NULL)
|
| 478 |
|
|
{
|
| 479 |
|
|
/* This is a TI "internal relocation", which means that the relocation
|
| 480 |
|
|
amount is the amount by which the current section is being relocated
|
| 481 |
|
|
in the output section. */
|
| 482 |
|
|
*addendp = (sec -> output_section -> vma + sec -> output_offset) - sec -> vma;
|
| 483 |
|
|
}
|
| 484 |
|
|
RTYPE2HOWTO (&genrel, rel);
|
| 485 |
|
|
return genrel.howto;
|
| 486 |
|
|
}
|
| 487 |
|
|
|
| 488 |
|
|
#ifndef BADMAG
|
| 489 |
|
|
#define BADMAG(x) TIC80BADMAG(x)
|
| 490 |
|
|
#endif
|
| 491 |
|
|
|
| 492 |
|
|
#define coff_relocate_section coff_tic80_relocate_section
|
| 493 |
|
|
|
| 494 |
|
|
/* We need a special relocation routine to handle the PP relocs. Most
|
| 495 |
|
|
of this is a copy of _bfd_coff_generic_relocate_section. */
|
| 496 |
|
|
|
| 497 |
|
|
static bfd_boolean
|
| 498 |
|
|
coff_tic80_relocate_section (output_bfd, info, input_bfd,
|
| 499 |
|
|
input_section, contents, relocs, syms,
|
| 500 |
|
|
sections)
|
| 501 |
|
|
bfd *output_bfd;
|
| 502 |
|
|
struct bfd_link_info *info;
|
| 503 |
|
|
bfd *input_bfd;
|
| 504 |
|
|
asection *input_section;
|
| 505 |
|
|
bfd_byte *contents;
|
| 506 |
|
|
struct internal_reloc *relocs;
|
| 507 |
|
|
struct internal_syment *syms;
|
| 508 |
|
|
asection **sections;
|
| 509 |
|
|
{
|
| 510 |
|
|
struct internal_reloc *rel;
|
| 511 |
|
|
struct internal_reloc *relend;
|
| 512 |
|
|
|
| 513 |
|
|
rel = relocs;
|
| 514 |
|
|
relend = rel + input_section->reloc_count;
|
| 515 |
|
|
for (; rel < relend; rel++)
|
| 516 |
|
|
{
|
| 517 |
|
|
long symndx;
|
| 518 |
|
|
struct coff_link_hash_entry *h;
|
| 519 |
|
|
struct internal_syment *sym;
|
| 520 |
|
|
bfd_vma addend;
|
| 521 |
|
|
bfd_vma val;
|
| 522 |
|
|
reloc_howto_type *howto;
|
| 523 |
|
|
bfd_reloc_status_type rstat;
|
| 524 |
|
|
bfd_vma addr;
|
| 525 |
|
|
|
| 526 |
|
|
symndx = rel->r_symndx;
|
| 527 |
|
|
|
| 528 |
|
|
if (symndx == -1)
|
| 529 |
|
|
{
|
| 530 |
|
|
h = NULL;
|
| 531 |
|
|
sym = NULL;
|
| 532 |
|
|
}
|
| 533 |
|
|
else
|
| 534 |
|
|
{
|
| 535 |
|
|
h = obj_coff_sym_hashes (input_bfd)[symndx];
|
| 536 |
|
|
sym = syms + symndx;
|
| 537 |
|
|
}
|
| 538 |
|
|
|
| 539 |
|
|
/* COFF treats common symbols in one of two ways. Either the
|
| 540 |
|
|
size of the symbol is included in the section contents, or it
|
| 541 |
|
|
is not. We assume that the size is not included, and force
|
| 542 |
|
|
the rtype_to_howto function to adjust the addend as needed. */
|
| 543 |
|
|
|
| 544 |
|
|
if (sym != NULL && sym->n_scnum != 0)
|
| 545 |
|
|
addend = - sym->n_value;
|
| 546 |
|
|
else
|
| 547 |
|
|
addend = 0;
|
| 548 |
|
|
|
| 549 |
|
|
howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
|
| 550 |
|
|
sym, &addend);
|
| 551 |
|
|
if (howto == NULL)
|
| 552 |
|
|
return FALSE;
|
| 553 |
|
|
|
| 554 |
|
|
val = 0;
|
| 555 |
|
|
|
| 556 |
|
|
if (h == NULL)
|
| 557 |
|
|
{
|
| 558 |
|
|
asection *sec;
|
| 559 |
|
|
|
| 560 |
|
|
if (symndx == -1)
|
| 561 |
|
|
{
|
| 562 |
|
|
sec = bfd_abs_section_ptr;
|
| 563 |
|
|
val = 0;
|
| 564 |
|
|
}
|
| 565 |
|
|
else
|
| 566 |
|
|
{
|
| 567 |
|
|
sec = sections[symndx];
|
| 568 |
|
|
val = (sec->output_section->vma
|
| 569 |
|
|
+ sec->output_offset
|
| 570 |
|
|
+ sym->n_value);
|
| 571 |
|
|
if (! obj_pe (output_bfd))
|
| 572 |
|
|
val -= sec->vma;
|
| 573 |
|
|
}
|
| 574 |
|
|
}
|
| 575 |
|
|
else
|
| 576 |
|
|
{
|
| 577 |
|
|
if (h->root.type == bfd_link_hash_defined
|
| 578 |
|
|
|| h->root.type == bfd_link_hash_defweak)
|
| 579 |
|
|
{
|
| 580 |
|
|
asection *sec;
|
| 581 |
|
|
|
| 582 |
|
|
sec = h->root.u.def.section;
|
| 583 |
|
|
val = (h->root.u.def.value
|
| 584 |
|
|
+ sec->output_section->vma
|
| 585 |
|
|
+ sec->output_offset);
|
| 586 |
|
|
}
|
| 587 |
|
|
|
| 588 |
|
|
else if (! info->relocatable)
|
| 589 |
|
|
{
|
| 590 |
|
|
if (! ((*info->callbacks->undefined_symbol)
|
| 591 |
|
|
(info, h->root.root.string, input_bfd, input_section,
|
| 592 |
|
|
rel->r_vaddr - input_section->vma, TRUE)))
|
| 593 |
|
|
return FALSE;
|
| 594 |
|
|
}
|
| 595 |
|
|
}
|
| 596 |
|
|
|
| 597 |
|
|
addr = rel->r_vaddr - input_section->vma;
|
| 598 |
|
|
|
| 599 |
|
|
/* FIXME: This code assumes little endian, but the PP can
|
| 600 |
|
|
apparently be bi-endian. I don't know if the bi-endianness
|
| 601 |
|
|
applies to the instruction set or just to the data. */
|
| 602 |
|
|
switch (howto->type)
|
| 603 |
|
|
{
|
| 604 |
|
|
default:
|
| 605 |
|
|
case R_ABS:
|
| 606 |
|
|
case R_RELLONGX:
|
| 607 |
|
|
case R_PPL15:
|
| 608 |
|
|
case R_PPL15W:
|
| 609 |
|
|
case R_PPL15H:
|
| 610 |
|
|
case R_PPLN15:
|
| 611 |
|
|
case R_PPLN15W:
|
| 612 |
|
|
case R_PPLN15H:
|
| 613 |
|
|
rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
| 614 |
|
|
contents, addr, val, addend);
|
| 615 |
|
|
break;
|
| 616 |
|
|
|
| 617 |
|
|
case R_PP15:
|
| 618 |
|
|
case R_PP15W:
|
| 619 |
|
|
case R_PP15H:
|
| 620 |
|
|
case R_PPN15:
|
| 621 |
|
|
case R_PPN15W:
|
| 622 |
|
|
case R_PPN15H:
|
| 623 |
|
|
/* Offset the address so that we can use 4 byte relocations. */
|
| 624 |
|
|
rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
| 625 |
|
|
contents + 2, addr, val, addend);
|
| 626 |
|
|
break;
|
| 627 |
|
|
|
| 628 |
|
|
case R_PP16B:
|
| 629 |
|
|
case R_PPN16B:
|
| 630 |
|
|
{
|
| 631 |
|
|
/* The most significant bit is stored in bit 6. */
|
| 632 |
|
|
bfd_byte hold;
|
| 633 |
|
|
|
| 634 |
|
|
hold = contents[addr + 4];
|
| 635 |
|
|
contents[addr + 4] &=~ 0x20;
|
| 636 |
|
|
contents[addr + 4] |= (contents[addr] >> 1) & 0x20;
|
| 637 |
|
|
rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
| 638 |
|
|
contents + 2, addr,
|
| 639 |
|
|
val, addend);
|
| 640 |
|
|
contents[addr] &=~ 0x40;
|
| 641 |
|
|
contents[addr] |= (contents[addr + 4] << 1) & 0x40;
|
| 642 |
|
|
contents[addr + 4] &=~ 0x20;
|
| 643 |
|
|
contents[addr + 4] |= hold & 0x20;
|
| 644 |
|
|
break;
|
| 645 |
|
|
}
|
| 646 |
|
|
|
| 647 |
|
|
case R_PPL16B:
|
| 648 |
|
|
case R_PPLN16B:
|
| 649 |
|
|
{
|
| 650 |
|
|
/* The most significant bit is stored in bit 28. */
|
| 651 |
|
|
bfd_byte hold;
|
| 652 |
|
|
|
| 653 |
|
|
hold = contents[addr + 1];
|
| 654 |
|
|
contents[addr + 1] &=~ 0x80;
|
| 655 |
|
|
contents[addr + 1] |= (contents[addr + 3] << 3) & 0x80;
|
| 656 |
|
|
rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
| 657 |
|
|
contents, addr,
|
| 658 |
|
|
val, addend);
|
| 659 |
|
|
contents[addr + 3] &= ~0x10;
|
| 660 |
|
|
contents[addr + 3] |= (contents[addr + 1] >> 3) & 0x10;
|
| 661 |
|
|
contents[addr + 1] &=~ 0x80;
|
| 662 |
|
|
contents[addr + 1] |= hold & 0x80;
|
| 663 |
|
|
break;
|
| 664 |
|
|
}
|
| 665 |
|
|
|
| 666 |
|
|
case R_PPBASE:
|
| 667 |
|
|
/* Parameter RAM is from 0x1000000 to 0x1000800. */
|
| 668 |
|
|
contents[addr] &=~ 0x3;
|
| 669 |
|
|
if (val >= 0x1000000 && val < 0x1000800)
|
| 670 |
|
|
contents[addr] |= 0x3;
|
| 671 |
|
|
else
|
| 672 |
|
|
contents[addr] |= 0x2;
|
| 673 |
|
|
rstat = bfd_reloc_ok;
|
| 674 |
|
|
break;
|
| 675 |
|
|
|
| 676 |
|
|
case R_PPLBASE:
|
| 677 |
|
|
/* Parameter RAM is from 0x1000000 to 0x1000800. */
|
| 678 |
|
|
contents[addr + 2] &= ~0xc0;
|
| 679 |
|
|
if (val >= 0x1000000 && val < 0x1000800)
|
| 680 |
|
|
contents[addr + 2] |= 0xc0;
|
| 681 |
|
|
else
|
| 682 |
|
|
contents[addr + 2] |= 0x80;
|
| 683 |
|
|
rstat = bfd_reloc_ok;
|
| 684 |
|
|
break;
|
| 685 |
|
|
}
|
| 686 |
|
|
|
| 687 |
|
|
switch (rstat)
|
| 688 |
|
|
{
|
| 689 |
|
|
default:
|
| 690 |
|
|
abort ();
|
| 691 |
|
|
case bfd_reloc_ok:
|
| 692 |
|
|
break;
|
| 693 |
|
|
case bfd_reloc_outofrange:
|
| 694 |
|
|
(*_bfd_error_handler)
|
| 695 |
|
|
(_("%B: bad reloc address 0x%lx in section `%A'"),
|
| 696 |
|
|
input_bfd, input_section, (unsigned long) rel->r_vaddr);
|
| 697 |
|
|
return FALSE;
|
| 698 |
|
|
case bfd_reloc_overflow:
|
| 699 |
|
|
{
|
| 700 |
|
|
const char *name;
|
| 701 |
|
|
char buf[SYMNMLEN + 1];
|
| 702 |
|
|
|
| 703 |
|
|
if (symndx == -1)
|
| 704 |
|
|
name = "*ABS*";
|
| 705 |
|
|
else if (h != NULL)
|
| 706 |
|
|
name = NULL;
|
| 707 |
|
|
else
|
| 708 |
|
|
{
|
| 709 |
|
|
name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
|
| 710 |
|
|
if (name == NULL)
|
| 711 |
|
|
return FALSE;
|
| 712 |
|
|
}
|
| 713 |
|
|
|
| 714 |
|
|
if (! ((*info->callbacks->reloc_overflow)
|
| 715 |
|
|
(info, (h ? &h->root : NULL), name, howto->name,
|
| 716 |
|
|
(bfd_vma) 0, input_bfd, input_section,
|
| 717 |
|
|
rel->r_vaddr - input_section->vma)))
|
| 718 |
|
|
return FALSE;
|
| 719 |
|
|
}
|
| 720 |
|
|
}
|
| 721 |
|
|
}
|
| 722 |
|
|
return TRUE;
|
| 723 |
|
|
}
|
| 724 |
|
|
|
| 725 |
|
|
/* Clear the r_reserved field in relocs. */
|
| 726 |
|
|
#define SWAP_OUT_RELOC_EXTRA(abfd,src,dst) \
|
| 727 |
|
|
do \
|
| 728 |
|
|
{ \
|
| 729 |
|
|
dst->r_reserved[0] = 0; \
|
| 730 |
|
|
dst->r_reserved[1] = 0; \
|
| 731 |
|
|
} \
|
| 732 |
|
|
while (0)
|
| 733 |
|
|
|
| 734 |
|
|
#define TIC80COFF 1 /* Customize coffcode.h */
|
| 735 |
|
|
#undef C_AUTOARG /* Clashes with TIc80's C_UEXT */
|
| 736 |
|
|
#undef C_LASTENT /* Clashes with TIc80's C_STATLAB */
|
| 737 |
|
|
#include "coffcode.h"
|
| 738 |
|
|
|
| 739 |
|
|
CREATE_LITTLE_COFF_TARGET_VEC (tic80coff_vec, "coff-tic80", D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE)
|
