138 lines
4.4 KiB
C
138 lines
4.4 KiB
C
/* BFD back-end for Motorola 88000 COFF "Binary Compatability Standard" files.
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Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
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Written by Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define M88 1 /* Customize various include files */
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "obstack.h"
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#include "coff/m88k.h"
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#include "coff/internal.h"
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#include "libcoff.h"
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#undef HOWTO_PREPARE
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/* Provided the symbol, returns the value reffed */
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#define HOWTO_PREPARE(relocation, symbol) \
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{ \
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if (symbol != (asymbol *)NULL) { \
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if (bfd_is_com_section (symbol->section)) { \
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relocation = 0; \
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} \
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else { \
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relocation = symbol->value; \
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} \
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} \
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if (symbol->section != (asection *)NULL) { \
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relocation += symbol->section->output_section->vma + \
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symbol->section->output_offset; \
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} \
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}
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static bfd_reloc_status_type
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DEFUN(howto_hvrt16,(abfd, reloc_entry, symbol_in, data,
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ignore_input_section, ignore_bfd),
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bfd *abfd AND
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arelent *reloc_entry AND
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asymbol *symbol_in AND
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PTR data AND
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asection *ignore_input_section AND
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bfd *ignore_bfd)
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{
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long relocation = 0;
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bfd_vma addr = reloc_entry->address;
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long x = bfd_get_16(abfd, (bfd_byte *)data + addr);
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HOWTO_PREPARE(relocation, symbol_in);
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x = (x + relocation + reloc_entry->addend) >> 16;
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bfd_put_16(abfd, x, (bfd_byte *)data + addr);
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return bfd_reloc_ok;
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}
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static reloc_howto_type howto_table[] =
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{
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HOWTO(R_PCR16L,02,1,16,true, 0,false,true,0,"PCR16L",false,0x0000ffff,0x0000ffff,true),
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HOWTO(R_PCR26L,02,2,26,true, 0,false,true,0,"PCR26L",false,0x03ffffff,0x03ffffff,true),
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HOWTO(R_VRT16, 00,1,16,false,0,false,true,0,"VRT16", false,0x0000ffff,0x0000ffff,true),
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HOWTO(R_HVRT16,16,1,16,false,0,false,true,howto_hvrt16,"HVRT16",false,0x0000ffff,0x0000ffff,true),
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HOWTO(R_LVRT16,00,1,16,false,0,false,true,0,"LVRT16",false,0x0000ffff,0x0000ffff,true),
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HOWTO(R_VRT32, 00,2,32,false,0,false,true,0,"VRT32", false,0xffffffff,0xffffffff,true),
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};
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/* Code to swap in the reloc offset */
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#define SWAP_IN_RELOC_OFFSET bfd_h_get_16
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#define SWAP_OUT_RELOC_OFFSET bfd_h_put_16
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/* Code to turn an external r_type into a pointer to an entry in the
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above howto table */
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#define RTYPE2HOWTO(cache_ptr, dst) \
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if ((dst)->r_type >= R_PCR16L && (dst)->r_type <= R_VRT32) {\
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cache_ptr->howto = howto_table + (dst)->r_type - R_PCR16L;\
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cache_ptr->addend += (dst)->r_offset << 16; \
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} \
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else { \
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BFD_ASSERT(0); \
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}
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#define BADMAG(x) MC88BADMAG(x)
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#include "coffcode.h"
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#undef coff_write_armap
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bfd_target m88kbcs_vec =
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{
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"coff-m88kbcs", /* name */
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bfd_target_coff_flavour,
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true, /* data byte order is big */
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true, /* header byte order is big */
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(HAS_RELOC | EXEC_P | /* object flags */
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HAS_LINENO | HAS_DEBUG |
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HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
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(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
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'_', /* leading underscore */
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'/', /* ar_pad_char */
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15, /* ar_max_namelen */
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3, /* default alignment power */
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_do_getb64, _do_getb_signed_64, _do_putb64,
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_do_getb32, _do_getb_signed_32, _do_putb32,
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_do_getb16, _do_getb_signed_16, _do_putb16, /* data */
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_do_getb64, _do_getb_signed_64, _do_putb64,
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_do_getb32, _do_getb_signed_32, _do_putb32,
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_do_getb16, _do_getb_signed_16, _do_putb16, /* hdrs */
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{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
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bfd_generic_archive_p, _bfd_dummy_target},
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{bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
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bfd_false},
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{bfd_false, coff_write_object_contents, /* bfd_write_contents */
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_bfd_write_archive_contents, bfd_false},
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JUMP_TABLE(coff),
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COFF_SWAP_TABLE,
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};
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