mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-12-11 06:04:12 +00:00
139 lines
4.4 KiB
C
139 lines
4.4 KiB
C
/* BFD back-end for Motorola 88000 COFF "Binary Compatability Standard" files.
|
|
Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
|
|
Written by 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
#define M88 1 /* Customize various include files */
|
|
#include "bfd.h"
|
|
#include "sysdep.h"
|
|
#include "libbfd.h"
|
|
#include "obstack.h"
|
|
#include "coff/m88k.h"
|
|
#include "coff/internal.h"
|
|
#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
|
|
DEFUN(howto_hvrt16,(abfd, reloc_entry, symbol_in, data,
|
|
ignore_input_section, ignore_bfd),
|
|
bfd *abfd AND
|
|
arelent *reloc_entry AND
|
|
asymbol *symbol_in AND
|
|
PTR data AND
|
|
asection *ignore_input_section AND
|
|
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) >> 16;
|
|
|
|
bfd_put_16(abfd, x, (bfd_byte *)data + addr);
|
|
return bfd_reloc_ok;
|
|
}
|
|
|
|
|
|
|
|
static reloc_howto_type howto_table[] =
|
|
{
|
|
HOWTO(R_PCR16L,02,1,16,true, 0,false,true,0,"PCR16L",false,0x0000ffff,0x0000ffff,true),
|
|
HOWTO(R_PCR26L,02,2,26,true, 0,false,true,0,"PCR26L",false,0x03ffffff,0x03ffffff,true),
|
|
HOWTO(R_VRT16, 00,1,16,false,0,false,true,0,"VRT16", false,0x0000ffff,0x0000ffff,true),
|
|
HOWTO(R_HVRT16,16,1,16,false,0,false,true,howto_hvrt16,"HVRT16",false,0x0000ffff,0x0000ffff,true),
|
|
HOWTO(R_LVRT16,00,1,16,false,0,false,true,0,"LVRT16",false,0x0000ffff,0x0000ffff,true),
|
|
HOWTO(R_VRT32, 00,2,32,false,0,false,true,0,"VRT32", false,0xffffffff,0xffffffff,true),
|
|
};
|
|
|
|
|
|
/* 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); \
|
|
}
|
|
|
|
|
|
|
|
#define BADMAG(x) MC88BADMAG(x)
|
|
#include "coffcode.h"
|
|
|
|
#undef coff_write_armap
|
|
|
|
bfd_target m88kbcs_vec =
|
|
{
|
|
"coff-m88kbcs", /* 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 underscore */
|
|
'/', /* ar_pad_char */
|
|
15, /* ar_max_namelen */
|
|
3, /* default alignment power */
|
|
_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,
|
|
};
|