binutils-gdb/bfd/cpu-z8k.c

179 lines
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/* BFD library support routines for the Z800n architecture.
Copyright 1992, 1993, 1994, 2000, 2001, 2002
Free Software Foundation, Inc.
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Hacked by Steve Chamberlain of Cygnus Support.
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"
static const bfd_arch_info_type *compatible
PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
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#if 0 /* not used currently */
/*
Relocations for the Z8K
*/
static bfd_reloc_status_type
howto16_callback (abfd, reloc_entry, symbol_in, data,
ignore_input_section, ignore_bfd)
bfd *abfd;
arelent *reloc_entry;
struct symbol_cache_entry *symbol_in;
PTR data;
asection *ignore_input_section;
bfd *ignore_bfd;
{
long relocation = 0;
bfd_vma addr = reloc_entry->address;
long x = bfd_get_16 (abfd, (bfd_byte *) data + addr);
HOWTO_PREPARE (relocation, symbol_in);
x = (x + relocation + reloc_entry->addend);
bfd_put_16 (abfd, x, (bfd_byte *) data + addr);
return bfd_reloc_ok;
}
static bfd_reloc_status_type
howto8_callback (abfd, reloc_entry, symbol_in, data,
ignore_input_section, ignore_bfd)
bfd *abfd;
arelent *reloc_entry;
struct symbol_cache_entry *symbol_in;
PTR data;
asection *ignore_input_section;
bfd *ignore_bfd;
{
long relocation = 0;
bfd_vma addr = reloc_entry->address;
long x = bfd_get_8 (abfd, (bfd_byte *) data + addr);
HOWTO_PREPARE (relocation, symbol_in);
x = (x + relocation + reloc_entry->addend);
bfd_put_8 (abfd, x, (bfd_byte *) data + addr);
return bfd_reloc_ok;
}
static bfd_reloc_status_type
howto8_FFnn_callback (abfd, reloc_entry, symbol_in, data,
ignore_input_section, ignore_bfd)
bfd *abfd;
arelent *reloc_entry;
struct symbol_cache_entry *symbol_in;
PTR data;
asection *ignore_input_section;
bfd *ignore_bfd;
{
long relocation = 0;
bfd_vma addr = reloc_entry->address;
long x = bfd_get_8 (abfd, (bfd_byte *) data + addr);
abort ();
HOWTO_PREPARE (relocation, symbol_in);
x = (x + relocation + reloc_entry->addend);
bfd_put_8 (abfd, x, (bfd_byte *) data + addr);
return bfd_reloc_ok;
}
static bfd_reloc_status_type
howto8_pcrel_callback (abfd, reloc_entry, symbol_in, data,
ignore_input_section, ignore_bfd)
bfd *abfd;
arelent *reloc_entry;
struct symbol_cache_entry *symbol_in;
PTR data;
asection *ignore_input_section;
bfd *ignore_bfd;
{
long relocation = 0;
bfd_vma addr = reloc_entry->address;
long x = bfd_get_8 (abfd, (bfd_byte *) data + addr);
abort ();
HOWTO_PREPARE (relocation, symbol_in);
x = (x + relocation + reloc_entry->addend);
bfd_put_8 (abfd, x, (bfd_byte *) data + addr);
return bfd_reloc_ok;
}
static reloc_howto_type howto_16
= NEWHOWTO (howto16_callback, "abs16", 1, FALSE, FALSE);
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static reloc_howto_type howto_8
= NEWHOWTO (howto8_callback, "abs8", 0, FALSE, FALSE);
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static reloc_howto_type howto_8_FFnn
= NEWHOWTO (howto8_FFnn_callback, "ff00+abs8", 0, FALSE, FALSE);
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static reloc_howto_type howto_8_pcrel
= NEWHOWTO (howto8_pcrel_callback, "pcrel8", 0, FALSE, TRUE);
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static reloc_howto_type *
local_bfd_reloc_type_lookup (arch, code)
const struct bfd_arch_info *arch;
bfd_reloc_code_real_type code;
{
switch (code)
{
case BFD_RELOC_16:
return &howto_16;
case BFD_RELOC_8_FFnn:
return &howto_8_FFnn;
case BFD_RELOC_8:
return &howto_8;
case BFD_RELOC_8_PCREL:
return &howto_8_pcrel;
default:
return (reloc_howto_type *) NULL;
}
}
#endif
/* This routine is provided two arch_infos and returns whether
they'd be compatible */
static const bfd_arch_info_type *
compatible (a, b)
const bfd_arch_info_type *a;
const bfd_arch_info_type *b;
{
if (a->arch != b->arch || a->mach != b->mach)
return NULL;
return a;
}
static const bfd_arch_info_type arch_info_struct[] =
{
{ 32, 16, 8, bfd_arch_z8k, bfd_mach_z8002, "z8k", "z8002", 1, FALSE,
compatible, bfd_default_scan, 0 }
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};
const bfd_arch_info_type bfd_z8k_arch =
{
32, 32, 8, bfd_arch_z8k, bfd_mach_z8001, "z8k", "z8001", 1, TRUE,
compatible, bfd_default_scan, &arch_info_struct[0]
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};