mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
332 lines
8.7 KiB
C
332 lines
8.7 KiB
C
/* BFD back-end for Hitachi H8/500 COFF binaries.
|
|
Copyright 1993 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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
#include "bfd.h"
|
|
#include "sysdep.h"
|
|
#include "libbfd.h"
|
|
#include "obstack.h"
|
|
#include "coff/h8500.h"
|
|
#include "coff/internal.h"
|
|
#include "libcoff.h"
|
|
#include "seclet.h"
|
|
|
|
extern bfd_error_vector_type bfd_error_vector;
|
|
|
|
static reloc_howto_type r_imm8 =
|
|
HOWTO (R_H8500_IMM8, 0, 1, 8, false, 0, true,
|
|
true, 0, "r_imm8", true, 0x000000ff, 0x000000ff, false);
|
|
|
|
static reloc_howto_type r_imm16 =
|
|
HOWTO (R_H8500_IMM16, 0, 1, 16, false, 0, true,
|
|
true, 0, "r_imm16", true, 0x0000ffff, 0x0000ffff, false);
|
|
|
|
static reloc_howto_type r_imm24 =
|
|
HOWTO (R_H8500_IMM24, 0, 1, 24, false, 0, true,
|
|
true, 0, "r_imm24", true, 0x00ffffff, 0x00ffffff, false);
|
|
|
|
static reloc_howto_type r_imm32 =
|
|
HOWTO (R_H8500_IMM32, 0, 1, 32, false, 0, true,
|
|
true, 0, "r_imm32", true, 0xffffffff, 0xffffffff, false);
|
|
|
|
|
|
static reloc_howto_type r_high8 =
|
|
HOWTO (R_H8500_HIGH8, 0, 1, 8, false, 0, true,
|
|
true, 0, "r_high8", true, 0x000000ff, 0x000000ff, false);
|
|
|
|
static reloc_howto_type r_low16 =
|
|
HOWTO (R_H8500_LOW16, 0, 1, 16, false, 0, true,
|
|
true, 0, "r_low16", true, 0x0000ffff, 0x0000ffff, false);
|
|
|
|
static reloc_howto_type r_pcrel8 =
|
|
HOWTO (R_H8500_PCREL8, 0, 1, 8, true, 0, true, true, 0, "r_pcrel8", true, 0, 0, true);
|
|
|
|
|
|
static reloc_howto_type r_pcrel16 =
|
|
HOWTO (R_H8500_PCREL16, 0, 1, 16, true, 0, true, true, 0, "r_pcrel16", true, 0, 0, true);
|
|
|
|
static reloc_howto_type r_high16 =
|
|
HOWTO (R_H8500_HIGH16, 0, 1, 8, false, 0, true,
|
|
true, 0, "r_high16", true, 0x000ffff, 0x0000ffff, false);
|
|
|
|
|
|
/* Turn a howto into a reloc number */
|
|
|
|
static int
|
|
coff_h8500_select_reloc (howto)
|
|
reloc_howto_type *howto;
|
|
{
|
|
return howto->type;
|
|
}
|
|
|
|
#define SELECT_RELOC(x,howto) x= 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 bfd_h_get_32
|
|
#define SWAP_OUT_RELOC_OFFSET bfd_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(internal, dst)
|
|
arelent * internal;
|
|
struct internal_reloc *dst;
|
|
{
|
|
switch (dst->r_type)
|
|
{
|
|
default:
|
|
printf ("BAD 0x%x\n", dst->r_type);
|
|
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 necessaru 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 (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 (reloc->r_symndx > 0)
|
|
{
|
|
relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
|
|
}
|
|
else
|
|
{
|
|
relent->sym_ptr_ptr = &(bfd_abs_symbol);
|
|
}
|
|
|
|
|
|
relent->addend = reloc->r_offset;
|
|
relent->address -= section->vma;
|
|
}
|
|
|
|
static void
|
|
extra_case (in_abfd, seclet, reloc, data, src_ptr, dst_ptr)
|
|
bfd *in_abfd;
|
|
bfd_seclet_type *seclet;
|
|
arelent *reloc;
|
|
bfd_byte *data;
|
|
unsigned int *src_ptr;
|
|
unsigned int *dst_ptr;
|
|
{
|
|
bfd_byte *d = data+*dst_ptr;
|
|
switch (reloc->howto->type)
|
|
{
|
|
case R_H8500_IMM8:
|
|
bfd_put_8 (in_abfd,
|
|
bfd_coff_reloc16_get_value (reloc, seclet),
|
|
d);
|
|
(*dst_ptr) += 1;
|
|
(*src_ptr) += 1;
|
|
break;
|
|
|
|
case R_H8500_HIGH8:
|
|
bfd_put_8 (in_abfd,
|
|
(bfd_coff_reloc16_get_value (reloc, seclet)>>16),
|
|
d );
|
|
(*dst_ptr) += 1;
|
|
(*src_ptr) += 1;
|
|
break;
|
|
|
|
case R_H8500_IMM16:
|
|
bfd_put_16 (in_abfd,
|
|
bfd_coff_reloc16_get_value (reloc, seclet) ,
|
|
d );
|
|
(*dst_ptr) += 2;
|
|
(*src_ptr) += 2;
|
|
break;
|
|
|
|
case R_H8500_LOW16:
|
|
bfd_put_16 (in_abfd,
|
|
bfd_coff_reloc16_get_value (reloc, seclet) ,
|
|
d);
|
|
|
|
(*dst_ptr) += 2;
|
|
(*src_ptr) += 2;
|
|
break;
|
|
|
|
case R_H8500_HIGH16:
|
|
bfd_put_16 (in_abfd,
|
|
bfd_coff_reloc16_get_value (reloc, seclet)>>16 ,
|
|
d);
|
|
|
|
(*dst_ptr) += 2;
|
|
(*src_ptr) += 2;
|
|
break;
|
|
|
|
case R_H8500_IMM24:
|
|
{
|
|
int v = bfd_coff_reloc16_get_value(reloc, seclet);
|
|
int o = bfd_get_32(in_abfd, data+ *dst_ptr -1);
|
|
v = (v & 0x00ffffff) | (o & 0xff00000);
|
|
bfd_put_32 (in_abfd, v, data + *dst_ptr -1);
|
|
(*dst_ptr) +=3;
|
|
(*src_ptr)+=3;;
|
|
}
|
|
break;
|
|
case R_H8500_IMM32:
|
|
{
|
|
int v = bfd_coff_reloc16_get_value(reloc, seclet);
|
|
bfd_put_32 (in_abfd, v, data + *dst_ptr);
|
|
(*dst_ptr) +=4;
|
|
(*src_ptr)+=4;;
|
|
}
|
|
break;
|
|
|
|
|
|
case R_H8500_PCREL8:
|
|
{
|
|
bfd_vma dst = bfd_coff_reloc16_get_value (reloc, seclet);
|
|
bfd_vma dot = seclet->offset
|
|
+ *dst_ptr
|
|
+ seclet->u.indirect.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)
|
|
{
|
|
bfd_error_vector.reloc_value_truncated (reloc, seclet);
|
|
}
|
|
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, seclet);
|
|
bfd_vma dot = seclet->offset
|
|
+ *dst_ptr
|
|
+ seclet->u.indirect.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)
|
|
{
|
|
bfd_error_vector.reloc_value_truncated (reloc, seclet);
|
|
}
|
|
bfd_put_16 (in_abfd, gap, data + *dst_ptr);
|
|
(*dst_ptr)+=2;
|
|
(*src_ptr)+=2;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
abort ();
|
|
}
|
|
}
|
|
|
|
#define coff_reloc16_extra_cases extra_case
|
|
|
|
#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
|
|
|
|
bfd_target h8500coff_vec =
|
|
{
|
|
"coff-h8500", /* name */
|
|
bfd_target_coff_flavour,
|
|
true, /* data byte order is big */
|
|
true, /* header byte order is big */
|
|
|
|
(HAS_RELOC | EXEC_P | /* object flags */
|
|
HAS_LINENO | HAS_DEBUG |
|
|
HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
|
|
|
|
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
|
|
'_', /* leading symbol underscore */
|
|
'/', /* ar_pad_char */
|
|
15, /* ar_max_namelen */
|
|
1, /* minimum section alignment */
|
|
_do_getb64, _do_getb_signed_64, _do_putb64,
|
|
_do_getb32, _do_getb_signed_32, _do_putb32,
|
|
_do_getb16, _do_getb_signed_16, _do_putb16, /* data */
|
|
_do_getb64, _do_getb_signed_64, _do_putb64,
|
|
_do_getb32, _do_getb_signed_32, _do_putb32,
|
|
_do_getb16, _do_getb_signed_16, _do_putb16, /* hdrs */
|
|
|
|
{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
|
|
bfd_generic_archive_p, _bfd_dummy_target},
|
|
{bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
|
|
bfd_false},
|
|
{bfd_false, coff_write_object_contents, /* bfd_write_contents */
|
|
_bfd_write_archive_contents, bfd_false},
|
|
|
|
JUMP_TABLE (coff),
|
|
COFF_SWAP_TABLE,
|
|
};
|