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/* Matsushita 10300 specific support for 32-bit ELF
Copyright (C) 1996 Free Software Foundation, Inc.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void mn10300_info_to_howto_rel
PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
/* Try to minimize the amount of space occupied by relocation tables
on the ROM (not that the ROM won't be swamped by other ELF overhead). */
#define USE_REL
enum reloc_type
{
R_MN10300_NONE = 0,
R_MN10300_32,
R_MN10300_16,
R_MN10300_8,
R_MN10300_PCREL32,
R_MN10300_PCREL16,
R_MN10300_PCREL8,
R_MN10300_MAX
};
static reloc_howto_type elf_mn10300_howto_table[] =
{
/* */
HOWTO (R_MN10300_NONE,
0,
2,
16,
false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10300_NONE",
false,
0,
0,
false),
HOWTO (R_MN10300_32,
0,
2,
32,
false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10300_32",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_MN10300_16,
0,
1,
16,
false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10300_16",
true,
0xffff,
0xffff,
false),
HOWTO (R_MN10300_8,
0,
0,
8,
false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10300_8",
true,
0xff,
0xff,
false),
HOWTO (R_MN10300_PCREL32,
0,
2,
32,
true,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10300_PCREL32",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_MN10300_PCREL16,
0,
1,
16,
true,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10300_PCREL16",
true,
0xffff,
0xffff,
false),
HOWTO (R_MN10300_PCREL8,
0,
0,
8,
true,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10300_PCREL8",
true,
0xff,
0xff,
false),
};
struct mn10300_reloc_map
{
unsigned char bfd_reloc_val;
unsigned char elf_reloc_val;
};
static const struct mn10300_reloc_map mn10300_reloc_map[] =
{
{ BFD_RELOC_NONE, R_MN10300_NONE, },
{ BFD_RELOC_32, R_MN10300_32, },
{ BFD_RELOC_16, R_MN10300_16, },
{ BFD_RELOC_8, R_MN10300_8, },
{ BFD_RELOC_32_PCREL, R_MN10300_PCREL32, },
{ BFD_RELOC_16_PCREL, R_MN10300_PCREL16, },
{ BFD_RELOC_8_PCREL, R_MN10300_PCREL8, },
};
static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup (abfd, code)
bfd *abfd;
bfd_reloc_code_real_type code;
{
unsigned int i;
for (i = 0;
i < sizeof (mn10300_reloc_map) / sizeof (struct mn10300_reloc_map);
i++)
{
if (mn10300_reloc_map[i].bfd_reloc_val == code)
return &elf_mn10300_howto_table[mn10300_reloc_map[i].elf_reloc_val];
}
return NULL;
}
/* Set the howto pointer for an V850 ELF reloc. */
static void
mn10300_info_to_howto_rel (abfd, cache_ptr, dst)
bfd *abfd;
arelent *cache_ptr;
Elf32_Internal_Rel *dst;
{
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_MN10300_MAX);
cache_ptr->howto = &elf_mn10300_howto_table[r_type];
}
#define TARGET_LITTLE_SYM bfd_elf32_mn10300_vec
#define TARGET_LITTLE_NAME "elf32-mn10300"
#define ELF_ARCH bfd_arch_mn10300
#define ELF_MACHINE_CODE EM_CYGNUS_MN10300
#define ELF_MAXPAGESIZE 0x1000
#define elf_info_to_howto 0
#define elf_info_to_howto_rel mn10300_info_to_howto_rel
#include "elf32-target.h"
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