darling-gdb/bfd/coff-m88k.c

148 lines
4.8 KiB
C
Raw Normal View History

/* BFD back-end for Motorola 88000 COFF "Binary Compatability Standard" files.
Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
Written by Cygnus Support.
1991-04-03 22:08:46 +00:00
This file is part of BFD, the Binary File Descriptor library.
1991-04-03 22:08:46 +00:00
This program is free software; you can redistribute it and/or modify
1991-04-03 22:08:46 +00:00
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.
1991-04-03 22:08:46 +00:00
This program is distributed in the hope that it will be useful,
1991-04-03 22:08:46 +00:00
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. */
1991-04-03 22:08:46 +00:00
#define M88 1 /* Customize various include files */
1991-04-03 22:08:46 +00:00
#include "bfd.h"
#include "sysdep.h"
1991-04-03 22:08:46 +00:00
#include "libbfd.h"
1991-04-23 16:02:09 +00:00
#include "obstack.h"
#include "coff/m88k.h"
#include "coff/internal.h"
1991-04-23 16:02:09 +00:00
#include "libcoff.h"
#undef HOWTO_PREPARE
/* Provided the symbol, returns the value reffed */
#define HOWTO_PREPARE(relocation, symbol) \
{ \
if (symbol != (asymbol *)NULL) { \
if (bfd_is_com_section (symbol->section)) { \
relocation = 0; \
} \
else { \
relocation = symbol->value; \
} \
} \
if (symbol->section != (asection *)NULL) { \
relocation += symbol->section->output_section->vma + \
symbol->section->output_offset; \
} \
}
static bfd_reloc_status_type
howto_hvrt16 (abfd, reloc_entry, symbol_in, data,
ignore_input_section, ignore_bfd, error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol_in;
PTR data;
asection *ignore_input_section;
bfd *ignore_bfd;
char **error_message;
{
long relocation = 0;
bfd_vma addr = reloc_entry->address;
1991-05-18 02:57:45 +00:00
long x = bfd_get_16(abfd, (bfd_byte *)data + addr);
HOWTO_PREPARE(relocation, symbol_in);
x = (x + relocation + reloc_entry->addend) >> 16;
1991-05-18 02:57:45 +00:00
bfd_put_16(abfd, x, (bfd_byte *)data + addr);
return bfd_reloc_ok;
}
1991-04-03 22:08:46 +00:00
static reloc_howto_type howto_table[] =
{
HOWTO(R_PCR16L,02,1,16,true, 0,complain_overflow_signed, 0, "PCR16L",false,0x0000ffff,0x0000ffff,true),
HOWTO(R_PCR26L,02,2,26,true, 0,complain_overflow_signed, 0, "PCR26L",false,0x03ffffff,0x03ffffff,true),
HOWTO(R_VRT16, 00,1,16,false,0,complain_overflow_bitfield, 0, "VRT16", false,0x0000ffff,0x0000ffff,true),
HOWTO(R_HVRT16,16,1,16,false,0,complain_overflow_dont,howto_hvrt16,"HVRT16",false,0x0000ffff,0x0000ffff,true),
HOWTO(R_LVRT16,00,1,16,false,0,complain_overflow_dont, 0, "LVRT16",false,0x0000ffff,0x0000ffff,true),
HOWTO(R_VRT32, 00,2,32,false,0,complain_overflow_bitfield, 0, "VRT32", false,0xffffffff,0xffffffff,true),
1991-04-03 22:08:46 +00:00
};
/* Code to swap in the reloc offset */
#define SWAP_IN_RELOC_OFFSET bfd_h_get_16
#define SWAP_OUT_RELOC_OFFSET bfd_h_put_16
/* Code to turn an external r_type into a pointer to an entry in the
above howto table */
#define RTYPE2HOWTO(cache_ptr, dst) \
if ((dst)->r_type >= R_PCR16L && (dst)->r_type <= R_VRT32) {\
cache_ptr->howto = howto_table + (dst)->r_type - R_PCR16L;\
cache_ptr->addend += (dst)->r_offset << 16; \
} \
else { \
BFD_ASSERT(0); \
}
1991-04-03 22:08:46 +00:00
#define BADMAG(x) MC88BADMAG(x)
1991-05-30 22:33:01 +00:00
#include "coffcode.h"
1991-04-03 22:08:46 +00:00
1991-11-12 15:22:22 +00:00
#undef coff_write_armap
1991-04-23 16:02:09 +00:00
bfd_target m88kbcs_vec =
1991-04-03 22:08:46 +00:00
{
"coff-m88kbcs", /* name */
bfd_target_coff_flavour,
1991-04-23 16:02:09 +00:00
true, /* data byte order is big */
1991-04-03 22:08:46 +00:00
true, /* header byte order is big */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | WP_TEXT),
1991-04-03 22:08:46 +00:00
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
'_', /* leading underscore */
1991-04-03 22:08:46 +00:00
'/', /* ar_pad_char */
15, /* ar_max_namelen */
3, /* default alignment power */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
1991-04-03 22:08:46 +00:00
{_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},
1991-04-23 16:02:09 +00:00
BFD_JUMP_TABLE_GENERIC (coff),
BFD_JUMP_TABLE_COPY (coff),
BFD_JUMP_TABLE_CORE (_bfd_nocore),
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
BFD_JUMP_TABLE_SYMBOLS (coff),
BFD_JUMP_TABLE_RELOCS (coff),
BFD_JUMP_TABLE_WRITE (coff),
BFD_JUMP_TABLE_LINK (coff),
COFF_SWAP_TABLE,
};