a11652892c
PR binutils/17512 * dwarf.c (display_block): Do nothing if the block starts after the end of the buffer. (read_and_display_attr_value): Add range checks. (struct Frame_Chunk): Make the ncols and ra fields unsigned. (frame_need_space): Test for an ncols of zero. (read_cie): Fail if the augmentation data extends off the end of the buffer. (display_debug_frames): Add checks for read_cie failing. Add range checks. * coff-h8300.c (rtype2howto): Replace abort with returning a NULL value. * coff-h8500.c (rtype2howto): Likewise. * coff-tic30.c (rtype2howto): Likewise. * coff-z80.c (rtype2howto): Likewise. * coff-z8k.c (rtype2howto): Likewise. * coff-ia64.c (RTYPE2HOWTO): Always return a valid howto. * coff-m68k.c (m68k_rtype2howto): Return a NULL howto if none could be found. * coff-mcore.c (RTYPE2HOWTO): Add range checking. * coff-w65.c (rtype2howto): Likewise. * coff-we32k.c (RTYPE2HOWTO): Likewise. * pe-mips.c (RTYPE2HOWTO): Likewise. * coff-x86_64.c (coff_amd64_reloc): Likewise. Replace abort with an error return. * coffcode.h (coff_slurp_reloc_table): Allow the rel parameter to be unused. * coffgen.c (make_a_section_from_file): Check the length of a section name before testing to see if it is a debug section name. (coff_object_p): Zero out any uninitialised bytes in the opt header. * ecoff.c (_bfd_ecoff_slurp_symbolic_info): Test for the raw source being empty when there are values to be processed. (_bfd_ecoff_slurp_symbol_table): Add range check. * mach-o.c (bfd_mach_o_canonicalize_one_reloc): Likewise. (bfd_mach_o_mangle_sections): Move test for too many sections to before the allocation of the section table. (bfd_mach_o_read_symtab_strtab): If the read fails, free the memory and nullify the symbol pointer. * reloc.c (bfd_generic_get_relocated_section_contents): Add handling of a bfd_reloc_notsupported return value. * versados.c (EDATA): Add range checking. (get_record): Likewise. (process_otr): Check for contents being available before updating them. (versados_canonicalize_reloc): Add range check.
305 lines
8.4 KiB
C
305 lines
8.4 KiB
C
/* BFD back-end for Renesas H8/500 COFF binaries.
|
||
Copyright (C) 1993-2014 Free Software Foundation, Inc.
|
||
Contributed by Cygnus Support.
|
||
Written by Steve Chamberlain, <sac@cygnus.com>.
|
||
|
||
This file is part of BFD, the Binary File Descriptor library.
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 3 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
||
MA 02110-1301, USA. */
|
||
|
||
#include "sysdep.h"
|
||
#include "bfd.h"
|
||
#include "libbfd.h"
|
||
#include "bfdlink.h"
|
||
#include "coff/h8500.h"
|
||
#include "coff/internal.h"
|
||
#include "libcoff.h"
|
||
|
||
|
||
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
|
||
|
||
static reloc_howto_type r_imm8 =
|
||
HOWTO (R_H8500_IMM8, 0, 1, 8, FALSE, 0,
|
||
complain_overflow_bitfield, 0, "r_imm8", TRUE, 0x000000ff, 0x000000ff, FALSE);
|
||
|
||
static reloc_howto_type r_imm16 =
|
||
HOWTO (R_H8500_IMM16, 0, 1, 16, FALSE, 0,
|
||
complain_overflow_bitfield, 0, "r_imm16", TRUE, 0x0000ffff, 0x0000ffff, FALSE);
|
||
|
||
static reloc_howto_type r_imm24 =
|
||
HOWTO (R_H8500_IMM24, 0, 1, 24, FALSE, 0,
|
||
complain_overflow_bitfield, 0, "r_imm24", TRUE, 0x00ffffff, 0x00ffffff, FALSE);
|
||
|
||
static reloc_howto_type r_imm32 =
|
||
HOWTO (R_H8500_IMM32, 0, 1, 32, FALSE, 0,
|
||
complain_overflow_bitfield, 0, "r_imm32", TRUE, 0xffffffff, 0xffffffff, FALSE);
|
||
|
||
static reloc_howto_type r_high8 =
|
||
HOWTO (R_H8500_HIGH8, 0, 1, 8, FALSE, 0,
|
||
complain_overflow_dont, 0, "r_high8", TRUE, 0x000000ff, 0x000000ff, FALSE);
|
||
|
||
static reloc_howto_type r_low16 =
|
||
HOWTO (R_H8500_LOW16, 0, 1, 16, FALSE, 0,
|
||
complain_overflow_dont, 0, "r_low16", TRUE, 0x0000ffff, 0x0000ffff, FALSE);
|
||
|
||
static reloc_howto_type r_pcrel8 =
|
||
HOWTO (R_H8500_PCREL8, 0, 1, 8, TRUE, 0, complain_overflow_signed, 0, "r_pcrel8", TRUE, 0, 0, TRUE);
|
||
|
||
static reloc_howto_type r_pcrel16 =
|
||
HOWTO (R_H8500_PCREL16, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "r_pcrel16", TRUE, 0, 0, TRUE);
|
||
|
||
static reloc_howto_type r_high16 =
|
||
HOWTO (R_H8500_HIGH16, 0, 1, 8, FALSE, 0,
|
||
complain_overflow_dont, 0, "r_high16", TRUE, 0x000ffff, 0x0000ffff, FALSE);
|
||
|
||
/* Turn a howto into a reloc number. */
|
||
|
||
static int
|
||
coff_h8500_select_reloc (reloc_howto_type *howto)
|
||
{
|
||
return howto->type;
|
||
}
|
||
|
||
#define SELECT_RELOC(x,howto) x.r_type = coff_h8500_select_reloc(howto)
|
||
|
||
#define BADMAG(x) H8500BADMAG(x)
|
||
#define H8500 1 /* Customize coffcode.h */
|
||
|
||
#define __A_MAGIC_SET__
|
||
|
||
/* Code to swap in the reloc. */
|
||
#define SWAP_IN_RELOC_OFFSET H_GET_32
|
||
#define SWAP_OUT_RELOC_OFFSET H_PUT_32
|
||
#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
|
||
dst->r_stuff[0] = 'S'; \
|
||
dst->r_stuff[1] = 'C';
|
||
|
||
/* Code to turn a r_type into a howto ptr, uses the above howto table. */
|
||
|
||
static void
|
||
rtype2howto (arelent * internal, struct internal_reloc *dst)
|
||
{
|
||
switch (dst->r_type)
|
||
{
|
||
default:
|
||
internal->howto = NULL;
|
||
break;
|
||
case R_H8500_IMM8:
|
||
internal->howto = &r_imm8;
|
||
break;
|
||
case R_H8500_IMM16:
|
||
internal->howto = &r_imm16;
|
||
break;
|
||
case R_H8500_IMM24:
|
||
internal->howto = &r_imm24;
|
||
break;
|
||
case R_H8500_IMM32:
|
||
internal->howto = &r_imm32;
|
||
break;
|
||
case R_H8500_PCREL8:
|
||
internal->howto = &r_pcrel8;
|
||
break;
|
||
case R_H8500_PCREL16:
|
||
internal->howto = &r_pcrel16;
|
||
break;
|
||
case R_H8500_HIGH8:
|
||
internal->howto = &r_high8;
|
||
break;
|
||
case R_H8500_HIGH16:
|
||
internal->howto = &r_high16;
|
||
break;
|
||
case R_H8500_LOW16:
|
||
internal->howto = &r_low16;
|
||
break;
|
||
}
|
||
}
|
||
|
||
#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
|
||
|
||
/* Perform any necessary magic to the addend in a reloc entry. */
|
||
|
||
#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
|
||
cache_ptr->addend = ext_reloc.r_offset;
|
||
|
||
#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
|
||
reloc_processing(relent, reloc, symbols, abfd, section)
|
||
|
||
static void
|
||
reloc_processing (arelent * relent,
|
||
struct internal_reloc *reloc,
|
||
asymbol ** symbols,
|
||
bfd * abfd,
|
||
asection * section)
|
||
{
|
||
relent->address = reloc->r_vaddr;
|
||
rtype2howto (relent, reloc);
|
||
|
||
if (reloc->r_symndx > 0)
|
||
relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
|
||
else
|
||
relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
||
|
||
relent->addend = reloc->r_offset;
|
||
relent->address -= section->vma;
|
||
}
|
||
|
||
static void
|
||
extra_case (bfd *in_abfd,
|
||
struct bfd_link_info *link_info,
|
||
struct bfd_link_order *link_order,
|
||
arelent *reloc,
|
||
bfd_byte *data,
|
||
unsigned int *src_ptr,
|
||
unsigned int *dst_ptr)
|
||
{
|
||
bfd_byte *d = data+*dst_ptr;
|
||
asection *input_section = link_order->u.indirect.section;
|
||
|
||
switch (reloc->howto->type)
|
||
{
|
||
case R_H8500_IMM8:
|
||
bfd_put_8 (in_abfd,
|
||
bfd_coff_reloc16_get_value (reloc, link_info, input_section),
|
||
d);
|
||
(*dst_ptr) += 1;
|
||
(*src_ptr) += 1;
|
||
break;
|
||
|
||
case R_H8500_HIGH8:
|
||
bfd_put_8 (in_abfd,
|
||
(bfd_coff_reloc16_get_value (reloc, link_info, input_section)
|
||
>> 16),
|
||
d);
|
||
(*dst_ptr) += 1;
|
||
(*src_ptr) += 1;
|
||
break;
|
||
|
||
case R_H8500_IMM16:
|
||
bfd_put_16 (in_abfd,
|
||
bfd_coff_reloc16_get_value (reloc, link_info, input_section),
|
||
d);
|
||
(*dst_ptr) += 2;
|
||
(*src_ptr) += 2;
|
||
break;
|
||
|
||
case R_H8500_LOW16:
|
||
bfd_put_16 (in_abfd,
|
||
bfd_coff_reloc16_get_value (reloc, link_info, input_section),
|
||
d);
|
||
|
||
(*dst_ptr) += 2;
|
||
(*src_ptr) += 2;
|
||
break;
|
||
|
||
case R_H8500_HIGH16:
|
||
bfd_put_16 (in_abfd,
|
||
(bfd_coff_reloc16_get_value (reloc, link_info, input_section)
|
||
>> 16),
|
||
d);
|
||
|
||
(*dst_ptr) += 2;
|
||
(*src_ptr) += 2;
|
||
break;
|
||
|
||
case R_H8500_IMM24:
|
||
{
|
||
int v = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
|
||
int o = bfd_get_32 (in_abfd, data+ *dst_ptr -1);
|
||
v = (v & 0x00ffffff) | (o & 0xff00000);
|
||
bfd_put_32 (in_abfd, (bfd_vma) v, data + *dst_ptr -1);
|
||
(*dst_ptr) += 3;
|
||
(*src_ptr) += 3;
|
||
}
|
||
break;
|
||
case R_H8500_IMM32:
|
||
{
|
||
int v = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
|
||
bfd_put_32 (in_abfd, (bfd_vma) v, data + *dst_ptr);
|
||
(*dst_ptr) += 4;
|
||
(*src_ptr) += 4;
|
||
}
|
||
break;
|
||
|
||
case R_H8500_PCREL8:
|
||
{
|
||
bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
|
||
input_section);
|
||
bfd_vma dot = (*dst_ptr
|
||
+ input_section->output_offset
|
||
+ input_section->output_section->vma);
|
||
int gap = dst - dot - 1; /* -1 since were in the odd byte of the
|
||
word and the pc's been incremented. */
|
||
|
||
if (gap > 128 || gap < -128)
|
||
{
|
||
if (! ((*link_info->callbacks->reloc_overflow)
|
||
(link_info, NULL,
|
||
bfd_asymbol_name (*reloc->sym_ptr_ptr),
|
||
reloc->howto->name, reloc->addend, input_section->owner,
|
||
input_section, reloc->address)))
|
||
abort ();
|
||
}
|
||
bfd_put_8 (in_abfd, gap, data + *dst_ptr);
|
||
(*dst_ptr)++;
|
||
(*src_ptr)++;
|
||
break;
|
||
}
|
||
case R_H8500_PCREL16:
|
||
{
|
||
bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
|
||
input_section);
|
||
bfd_vma dot = (*dst_ptr
|
||
+ input_section->output_offset
|
||
+ input_section->output_section->vma);
|
||
int gap = dst - dot - 1; /* -1 since were in the odd byte of the
|
||
word and the pc's been incremented. */
|
||
|
||
if (gap > 32767 || gap < -32768)
|
||
{
|
||
if (! ((*link_info->callbacks->reloc_overflow)
|
||
(link_info, NULL,
|
||
bfd_asymbol_name (*reloc->sym_ptr_ptr),
|
||
reloc->howto->name, reloc->addend, input_section->owner,
|
||
input_section, reloc->address)))
|
||
abort ();
|
||
}
|
||
bfd_put_16 (in_abfd, (bfd_vma) gap, data + *dst_ptr);
|
||
(*dst_ptr) += 2;
|
||
(*src_ptr) += 2;
|
||
break;
|
||
}
|
||
|
||
default:
|
||
abort ();
|
||
}
|
||
}
|
||
|
||
#define coff_reloc16_extra_cases extra_case
|
||
|
||
#ifndef bfd_pe_print_pdata
|
||
#define bfd_pe_print_pdata NULL
|
||
#endif
|
||
|
||
#include "coffcode.h"
|
||
|
||
#undef coff_bfd_get_relocated_section_contents
|
||
#undef coff_bfd_relax_section
|
||
#define coff_bfd_get_relocated_section_contents \
|
||
bfd_coff_reloc16_get_relocated_section_contents
|
||
#define coff_bfd_relax_section bfd_coff_reloc16_relax_section
|
||
|
||
CREATE_BIG_COFF_TARGET_VEC (h8500_coff_vec, "coff-h8500", 0, 0, '_', NULL, COFF_SWAP_TABLE)
|