binutils-gdb/bfd/coff-w65.c

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/* BFD back-end for WDC 65816 COFF binaries.
Copyright 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
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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 2 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. */
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#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "bfdlink.h"
#include "coff/w65.h"
#include "coff/internal.h"
#include "libcoff.h"
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static int select_reloc PARAMS ((reloc_howto_type *));
static void rtype2howto PARAMS ((arelent *, struct internal_reloc *));
static void reloc_processing PARAMS ((arelent *, struct internal_reloc *, asymbol **, bfd *, asection *));
static int w65_reloc16_estimate PARAMS ((bfd *, asection *, arelent *, unsigned int, struct bfd_link_info *));
static void w65_reloc16_extra_cases PARAMS ((bfd *,struct bfd_link_info *, struct bfd_link_order *, arelent *, bfd_byte *, unsigned int *, unsigned int *));
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#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
static reloc_howto_type howto_table[] =
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{
HOWTO (R_W65_ABS8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "abs8", TRUE, 0x000000ff, 0x000000ff, FALSE),
HOWTO (R_W65_ABS16, 1, 0, 16, FALSE, 0, complain_overflow_bitfield, 0, "abs16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
HOWTO (R_W65_ABS24, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "abs24", TRUE, 0x00ffffff, 0x00ffffff, FALSE),
HOWTO (R_W65_ABS8S8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, ">abs8", TRUE, 0x000000ff, 0x000000ff, FALSE),
HOWTO (R_W65_ABS8S16, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "^abs8", TRUE, 0x000000ff, 0x000000ff, FALSE),
HOWTO (R_W65_ABS16S8, 1, 0, 16, FALSE, 0, complain_overflow_bitfield, 0, ">abs16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
HOWTO (R_W65_ABS16S16,1, 0, 16, FALSE, 0, complain_overflow_bitfield, 0, "^abs16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
HOWTO (R_W65_PCR8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "pcrel8", TRUE, 0x000000ff, 0x000000ff, TRUE),
HOWTO (R_W65_PCR16, 1, 0, 16, FALSE, 0, complain_overflow_bitfield, 0, "pcrel16", TRUE, 0x0000ffff, 0x0000ffff, TRUE),
HOWTO (R_W65_DP, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "dp", TRUE, 0x000000ff, 0x000000ff, FALSE),
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};
/* Turn a howto into a reloc number. */
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#define SELECT_RELOC(x,howto) \
{ x.r_type = select_reloc(howto); }
#define BADMAG(x) (W65BADMAG(x))
#define W65 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
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#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
dst->r_stuff[0] = 'S'; \
dst->r_stuff[1] = 'C';
static int
select_reloc (howto)
reloc_howto_type *howto;
{
return howto->type ;
}
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/* Code to turn a r_type into a howto ptr, uses the above howto table. */
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static void
rtype2howto (internal, dst)
arelent *internal;
struct internal_reloc *dst;
{
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internal->howto = howto_table + dst->r_type - 1;
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}
#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
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/* Perform any necessary magic to the addend in a reloc entry. */
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#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 (relent, reloc, symbols, abfd, section)
arelent * relent;
struct internal_reloc *reloc;
asymbol ** symbols;
bfd * abfd;
asection * section;
{
relent->address = reloc->r_vaddr;
rtype2howto (relent, reloc);
if (((int) reloc->r_symndx) > 0)
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relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
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else
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relent->sym_ptr_ptr = (asymbol **)&(bfd_abs_symbol);
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relent->addend = reloc->r_offset;
relent->address -= section->vma;
/* relent->section = 0;*/
}
static int
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w65_reloc16_estimate (abfd, input_section, reloc, shrink, link_info)
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bfd *abfd;
asection *input_section;
arelent *reloc;
unsigned int shrink;
struct bfd_link_info *link_info;
{
bfd_vma value;
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bfd_vma dot;
bfd_vma gap;
/* The address of the thing to be relocated will have moved back by
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the size of the shrink - but we don't change reloc->address here,
since we need it to know where the relocation lives in the source
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uncooked section. */
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/* reloc->address -= shrink; conceptual */
bfd_vma address = reloc->address - shrink;
switch (reloc->howto->type)
{
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case R_MOV16B2:
case R_JMP2:
shrink+=2;
break;
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/* Thing is a move one byte. */
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case R_MOV16B1:
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value = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
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if (value >= 0xff00)
{
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/* Change the reloc type from 16bit, possible 8 to 8bit
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possible 16. */
reloc->howto = reloc->howto + 1;
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/* The place to relc moves back by one. */
/* This will be two bytes smaller in the long run. */
shrink += 2;
bfd_perform_slip (abfd, 2, input_section, address);
}
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break;
/* This is the 24 bit branch which could become an 8 bitter,
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the relocation points to the first byte of the insn, not the
actual data. */
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case R_JMPL1:
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value = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
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dot = input_section->output_section->vma +
input_section->output_offset + address;
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/* See if the address we're looking at within 127 bytes of where
we are, if so then we can use a small branch rather than the
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jump we were going to. */
gap = value - dot;
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if (-120 < (long) gap && (long) gap < 120)
{
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/* Change the reloc type from 24bit, possible 8 to 8bit
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possible 32. */
reloc->howto = reloc->howto + 1;
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/* This will be two bytes smaller in the long run. */
shrink += 2;
bfd_perform_slip (abfd, 2, input_section, address);
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}
break;
case R_JMP1:
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value = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
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dot = input_section->output_section->vma +
input_section->output_offset + address;
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/* See if the address we're looking at within 127 bytes of where
we are, if so then we can use a small branch rather than the
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jump we were going to. */
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gap = value - (dot - shrink);
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if (-120 < (long) gap && (long) gap < 120)
{
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/* Change the reloc type from 16bit, possible 8 to 8bit
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possible 16. */
reloc->howto = reloc->howto + 1;
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/* The place to relc moves back by one. */
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/* This will be two bytes smaller in the long run. */
shrink += 2;
bfd_perform_slip (abfd, 2, input_section, address);
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}
break;
}
return shrink;
}
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/* First phase of a relaxing link. */
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/* Reloc types
large small
R_MOV16B1 R_MOV16B2 mov.b with 16bit or 8 bit address
R_JMP1 R_JMP2 jmp or pcrel branch
R_JMPL1 R_JMPL_B8 24jmp or pcrel branch
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R_MOV24B1 R_MOV24B2 24 or 8 bit reloc for mov.b */
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static void
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w65_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
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dst_ptr)
bfd *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;
{
unsigned int src_address = *src_ptr;
unsigned int dst_address = *dst_ptr;
asection *input_section = link_order->u.indirect.section;
switch (reloc->howto->type)
{
case R_W65_ABS8:
case R_W65_DP:
{
unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
input_section);
bfd_put_8 (abfd, gap, data + dst_address);
dst_address += 1;
src_address += 1;
}
break;
case R_W65_ABS8S8:
{
unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
input_section);
gap >>= 8;
bfd_put_8 (abfd, gap, data + dst_address);
dst_address += 1;
src_address += 1;
}
break;
case R_W65_ABS8S16:
{
unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
input_section);
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gap >>= 16;
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bfd_put_8 (abfd, gap, data + dst_address);
dst_address += 1;
src_address += 1;
}
break;
case R_W65_ABS16:
{
unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
input_section);
bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
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dst_address += 2;
src_address += 2;
}
break;
case R_W65_ABS16S8:
{
unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
input_section);
gap >>= 8;
bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
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dst_address += 2;
src_address += 2;
}
break;
case R_W65_ABS16S16:
{
unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
input_section);
gap >>= 16;
bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
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dst_address += 2;
src_address += 2;
}
break;
case R_W65_ABS24:
{
unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info,
input_section);
bfd_put_16 (abfd, (bfd_vma) gap, data + dst_address);
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bfd_put_8 (abfd, gap >> 16, data+dst_address + 2);
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dst_address += 3;
src_address += 3;
}
break;
case R_W65_PCR8:
{
int gap = bfd_coff_reloc16_get_value (reloc, link_info,
input_section);
bfd_vma dot = (dst_address
+ input_section->output_offset
+ input_section->output_section->vma);
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gap -= dot + 1;
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if (gap < -128 || gap > 127)
{
if (! ((*link_info->callbacks->reloc_overflow)
bfd/ 2004-10-21 H.J. Lu <hongjiu.lu@intel.com> PR 463 * aoutx.h (aout_link_input_section_std): Pass proper hash entry to linker reloc_overflow callback. (aout_link_input_section_ext): Likewise. (aout_link_reloc_link_order): Likewise. * coff-a29k.c (coff_a29k_relocate_section): Likewise. * coff-alpha.c (alpha_ecoff_get_relocated_section_contents): Likewise. (alpha_relocate_section): Likewise. * coff-arm.c (coff_arm_relocate_section): Likewise. * coff-h8300.c (h8300_reloc16_extra_cases): Likewise. * coff-h8500.c (extra_case): Likewise. * coff-i960.c (coff_i960_relocate_section): Likewise. * coff-mcore.c (coff_mcore_relocate_section): Likewise. * coff-mips.c (mips_relocate_section): Likewise. * coff-or32.c (coff_or32_relocate_section): Likewise. * coff-ppc.c (coff_ppc_relocate_section): Likewise. * coff-rs6000.c (xcoff_ppc_relocate_section): Likewise. * coff-sh.c (sh_relocate_section): Likewise. * coff-tic80.c (coff_tic80_relocate_section): Likewise. * coff-w65.c (w65_reloc16_extra_cases): Likewise. * coff-z8k.c (extra_case): Likewise. * coff64-rs6000.c (xcoff64_ppc_relocate_section): Likewise. * cofflink.c (_bfd_coff_reloc_link_order): Likewise. (_bfd_coff_generic_relocate_section): Likewise. * ecoff.c (ecoff_reloc_link_order): Likewise. * elf-hppa.h (elf_hppa_relocate_section): Likewise. * elf-m10200.c (mn10200_elf_relocate_section): Likewise. * elf-m10300.c (mn10300_elf_relocate_section): Likewise. * elf32-arm.h (elf32_arm_relocate_section): Likewise. * elf32-avr.c (elf32_avr_relocate_section): Likewise. * elf32-cr16c.c (elf32_cr16c_relocate_section): Likewise. * elf32-cris.c (cris_elf_relocate_section): Likewise. * elf32-crx.c (elf32_crx_relocate_section): Likewise. * elf32-d10v.c (elf32_d10v_relocate_section): Likewise. * elf32-fr30.c (fr30_elf_relocate_section): Likewise. * elf32-frv.c (elf32_frv_relocate_section): Likewise. * elf32-h8300.c (elf32_h8_relocate_section): Likewise. * elf32-hppa.c (elf32_hppa_relocate_section): Likewise. * elf32-i370.c (i370_elf_relocate_section): Likewise. * elf32-i386.c (elf_i386_relocate_section): Likewise. * elf32-i860.c (elf32_i860_relocate_section): Likewise. * elf32-ip2k.c (ip2k_elf_relocate_section): Likewise. * elf32-iq2000.c (iq2000_elf_relocate_section): Likewise. * elf32-m32r.c (m32r_elf_relocate_section): Likewise. * elf32-m68hc1x.c (elf32_m68hc11_relocate_section): Likewise. * elf32-m68k.c (elf_m68k_relocate_section): Likewise. * elf32-mcore.c (mcore_elf_relocate_section): Likewise. * elf32-msp430.c (elf32_msp430_relocate_section): Likewise. * elf32-openrisc.c (openrisc_elf_relocate_section): Likewise. * elf32-ppc.c (ppc_elf_relocate_section): Likewise. * elf32-s390.c (elf_s390_relocate_section): Likewise. * elf32-sh.c (sh_elf_relocate_section): Likewise. * elf32-sparc.c (elf32_sparc_relocate_section): Likewise. * elf32-v850.c (v850_elf_relocate_section): Likewise. * elf32-vax.c (elf_vax_relocate_section): Likewise. * elf32-xstormy16.c (xstormy16_elf_relocate_section): Likewise. * elf64-alpha.c (elf64_alpha_relocate_section): Likewise. * elf64-mmix.c (mmix_elf_relocate_section): Likewise. * elf64-ppc.c (ppc64_elf_relocate_section): Likewise. * elf64-s390.c (elf_s390_relocate_section): Likewise. * elf64-sh64.c (sh_elf64_relocate_section): Likewise. * elf64-sparc.c (sparc64_elf_relocate_section): Likewise. * elf64-x86-64.c (elf64_x86_64_relocate_section): Likewise. * elflink.c (elf_reloc_link_order): Likewise. * elfxx-ia64.c (elfNN_ia64_relocate_section): Likewise. * elfxx-mips.c (_bfd_mips_elf_relocate_section): Likewise. (_bfd_elf_mips_get_relocated_section_contents): Likewise. * linker.c (_bfd_generic_reloc_link_order): Likewise. * pdp11.c (pdp11_aout_link_input_section): Likewise. (aout_link_reloc_link_order): Likewise. * reloc.c (bfd_generic_get_relocated_section_contents): Likewise. * xcofflink.c (xcoff_reloc_link_order): Likewise. * simple.c (simple_dummy_reloc_overflow): Updated. include/ 2004-10-21 H.J. Lu <hongjiu.lu@intel.com> PR 463 * bfdlink.h (bfd_link_callbacks): Add a pointer to struct bfd_link_hash_entry to reloc_overflow. ld/ 2004-10-21 H.J. Lu <hongjiu.lu@intel.com> PR 463 * ldmain.c (reloc_overflow): Accept a pointer to struct bfd_link_hash_entry. Report symbol location for relocation overflow.
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(link_info, NULL,
bfd_asymbol_name (*reloc->sym_ptr_ptr),
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reloc->howto->name, reloc->addend, input_section->owner,
input_section, reloc->address)))
abort ();
}
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bfd_put_8 (abfd, gap, data + dst_address);
dst_address += 1;
src_address += 1;
}
break;
case R_W65_PCR16:
{
bfd_vma gap = bfd_coff_reloc16_get_value (reloc, link_info,
input_section);
bfd_vma dot = (dst_address
+ input_section->output_offset
+ input_section->output_section->vma);
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/* This wraps within the page, so ignore the relativeness, look at the
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high part. */
if ((gap & 0xf0000) != (dot & 0xf0000))
{
if (! ((*link_info->callbacks->reloc_overflow)
bfd/ 2004-10-21 H.J. Lu <hongjiu.lu@intel.com> PR 463 * aoutx.h (aout_link_input_section_std): Pass proper hash entry to linker reloc_overflow callback. (aout_link_input_section_ext): Likewise. (aout_link_reloc_link_order): Likewise. * coff-a29k.c (coff_a29k_relocate_section): Likewise. * coff-alpha.c (alpha_ecoff_get_relocated_section_contents): Likewise. (alpha_relocate_section): Likewise. * coff-arm.c (coff_arm_relocate_section): Likewise. * coff-h8300.c (h8300_reloc16_extra_cases): Likewise. * coff-h8500.c (extra_case): Likewise. * coff-i960.c (coff_i960_relocate_section): Likewise. * coff-mcore.c (coff_mcore_relocate_section): Likewise. * coff-mips.c (mips_relocate_section): Likewise. * coff-or32.c (coff_or32_relocate_section): Likewise. * coff-ppc.c (coff_ppc_relocate_section): Likewise. * coff-rs6000.c (xcoff_ppc_relocate_section): Likewise. * coff-sh.c (sh_relocate_section): Likewise. * coff-tic80.c (coff_tic80_relocate_section): Likewise. * coff-w65.c (w65_reloc16_extra_cases): Likewise. * coff-z8k.c (extra_case): Likewise. * coff64-rs6000.c (xcoff64_ppc_relocate_section): Likewise. * cofflink.c (_bfd_coff_reloc_link_order): Likewise. (_bfd_coff_generic_relocate_section): Likewise. * ecoff.c (ecoff_reloc_link_order): Likewise. * elf-hppa.h (elf_hppa_relocate_section): Likewise. * elf-m10200.c (mn10200_elf_relocate_section): Likewise. * elf-m10300.c (mn10300_elf_relocate_section): Likewise. * elf32-arm.h (elf32_arm_relocate_section): Likewise. * elf32-avr.c (elf32_avr_relocate_section): Likewise. * elf32-cr16c.c (elf32_cr16c_relocate_section): Likewise. * elf32-cris.c (cris_elf_relocate_section): Likewise. * elf32-crx.c (elf32_crx_relocate_section): Likewise. * elf32-d10v.c (elf32_d10v_relocate_section): Likewise. * elf32-fr30.c (fr30_elf_relocate_section): Likewise. * elf32-frv.c (elf32_frv_relocate_section): Likewise. * elf32-h8300.c (elf32_h8_relocate_section): Likewise. * elf32-hppa.c (elf32_hppa_relocate_section): Likewise. * elf32-i370.c (i370_elf_relocate_section): Likewise. * elf32-i386.c (elf_i386_relocate_section): Likewise. * elf32-i860.c (elf32_i860_relocate_section): Likewise. * elf32-ip2k.c (ip2k_elf_relocate_section): Likewise. * elf32-iq2000.c (iq2000_elf_relocate_section): Likewise. * elf32-m32r.c (m32r_elf_relocate_section): Likewise. * elf32-m68hc1x.c (elf32_m68hc11_relocate_section): Likewise. * elf32-m68k.c (elf_m68k_relocate_section): Likewise. * elf32-mcore.c (mcore_elf_relocate_section): Likewise. * elf32-msp430.c (elf32_msp430_relocate_section): Likewise. * elf32-openrisc.c (openrisc_elf_relocate_section): Likewise. * elf32-ppc.c (ppc_elf_relocate_section): Likewise. * elf32-s390.c (elf_s390_relocate_section): Likewise. * elf32-sh.c (sh_elf_relocate_section): Likewise. * elf32-sparc.c (elf32_sparc_relocate_section): Likewise. * elf32-v850.c (v850_elf_relocate_section): Likewise. * elf32-vax.c (elf_vax_relocate_section): Likewise. * elf32-xstormy16.c (xstormy16_elf_relocate_section): Likewise. * elf64-alpha.c (elf64_alpha_relocate_section): Likewise. * elf64-mmix.c (mmix_elf_relocate_section): Likewise. * elf64-ppc.c (ppc64_elf_relocate_section): Likewise. * elf64-s390.c (elf_s390_relocate_section): Likewise. * elf64-sh64.c (sh_elf64_relocate_section): Likewise. * elf64-sparc.c (sparc64_elf_relocate_section): Likewise. * elf64-x86-64.c (elf64_x86_64_relocate_section): Likewise. * elflink.c (elf_reloc_link_order): Likewise. * elfxx-ia64.c (elfNN_ia64_relocate_section): Likewise. * elfxx-mips.c (_bfd_mips_elf_relocate_section): Likewise. (_bfd_elf_mips_get_relocated_section_contents): Likewise. * linker.c (_bfd_generic_reloc_link_order): Likewise. * pdp11.c (pdp11_aout_link_input_section): Likewise. (aout_link_reloc_link_order): Likewise. * reloc.c (bfd_generic_get_relocated_section_contents): Likewise. * xcofflink.c (xcoff_reloc_link_order): Likewise. * simple.c (simple_dummy_reloc_overflow): Updated. include/ 2004-10-21 H.J. Lu <hongjiu.lu@intel.com> PR 463 * bfdlink.h (bfd_link_callbacks): Add a pointer to struct bfd_link_hash_entry to reloc_overflow. ld/ 2004-10-21 H.J. Lu <hongjiu.lu@intel.com> PR 463 * ldmain.c (reloc_overflow): Accept a pointer to struct bfd_link_hash_entry. Report symbol location for relocation overflow.
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(link_info, NULL,
bfd_asymbol_name (*reloc->sym_ptr_ptr),
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reloc->howto->name, reloc->addend, input_section->owner,
input_section, reloc->address)))
abort ();
}
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gap -= dot + 2;
bfd_put_16 (abfd, gap, data + dst_address);
dst_address += 2;
src_address += 2;
}
break;
default:
printf (_("ignoring reloc %s\n"), reloc->howto->name);
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break;
}
*src_ptr = src_address;
*dst_ptr = dst_address;
}
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#define coff_reloc16_extra_cases w65_reloc16_extra_cases
#define coff_reloc16_estimate w65_reloc16_estimate
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#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_LITTLE_COFF_TARGET_VEC (w65_vec, "coff-w65", BFD_IS_RELAXABLE, 0, '_', NULL, COFF_SWAP_TABLE)