1 /* BFD back-end for Hitachi H8/500 COFF binaries.
2 Copyright 1993, 1994 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
4 Written by Steve Chamberlain, <sac@cygnus.com>.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
27 #include "coff/h8500.h"
28 #include "coff/internal.h"
31 static reloc_howto_type r_imm8 =
32 HOWTO (R_H8500_IMM8, 0, 1, 8, false, 0,
33 complain_overflow_bitfield, 0, "r_imm8", true, 0x000000ff, 0x000000ff, false);
35 static reloc_howto_type r_imm16 =
36 HOWTO (R_H8500_IMM16, 0, 1, 16, false, 0,
37 complain_overflow_bitfield, 0, "r_imm16", true, 0x0000ffff, 0x0000ffff, false);
39 static reloc_howto_type r_imm24 =
40 HOWTO (R_H8500_IMM24, 0, 1, 24, false, 0,
41 complain_overflow_bitfield, 0, "r_imm24", true, 0x00ffffff, 0x00ffffff, false);
43 static reloc_howto_type r_imm32 =
44 HOWTO (R_H8500_IMM32, 0, 1, 32, false, 0,
45 complain_overflow_bitfield, 0, "r_imm32", true, 0xffffffff, 0xffffffff, false);
48 static reloc_howto_type r_high8 =
49 HOWTO (R_H8500_HIGH8, 0, 1, 8, false, 0,
50 complain_overflow_dont, 0, "r_high8", true, 0x000000ff, 0x000000ff, false);
52 static reloc_howto_type r_low16 =
53 HOWTO (R_H8500_LOW16, 0, 1, 16, false, 0,
54 complain_overflow_dont, 0, "r_low16", true, 0x0000ffff, 0x0000ffff, false);
56 static reloc_howto_type r_pcrel8 =
57 HOWTO (R_H8500_PCREL8, 0, 1, 8, true, 0, complain_overflow_signed, 0, "r_pcrel8", true, 0, 0, true);
60 static reloc_howto_type r_pcrel16 =
61 HOWTO (R_H8500_PCREL16, 0, 1, 16, true, 0, complain_overflow_signed, 0, "r_pcrel16", true, 0, 0, true);
63 static reloc_howto_type r_high16 =
64 HOWTO (R_H8500_HIGH16, 0, 1, 8, false, 0,
65 complain_overflow_dont, 0, "r_high16", true, 0x000ffff, 0x0000ffff, false);
68 /* Turn a howto into a reloc number */
71 coff_h8500_select_reloc (howto)
72 reloc_howto_type *howto;
77 #define SELECT_RELOC(x,howto) x.r_type = coff_h8500_select_reloc(howto)
80 #define BADMAG(x) H8500BADMAG(x)
81 #define H8500 1 /* Customize coffcode.h */
83 #define __A_MAGIC_SET__
85 /* Code to swap in the reloc */
86 #define SWAP_IN_RELOC_OFFSET bfd_h_get_32
87 #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
88 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
89 dst->r_stuff[0] = 'S'; \
90 dst->r_stuff[1] = 'C';
92 /* Code to turn a r_type into a howto ptr, uses the above howto table
96 rtype2howto(internal, dst)
98 struct internal_reloc *dst;
103 fprintf (stderr, "BAD 0x%x\n", dst->r_type);
105 internal->howto = &r_imm8;
108 internal->howto = &r_imm16;
111 internal->howto = &r_imm24;
114 internal->howto = &r_imm32;
117 internal->howto = &r_pcrel8;
119 case R_H8500_PCREL16:
120 internal->howto = &r_pcrel16;
123 internal->howto = &r_high8;
126 internal->howto = &r_high16;
129 internal->howto = &r_low16;
134 #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
137 /* Perform any necessaru magic to the addend in a reloc entry */
140 #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
141 cache_ptr->addend = ext_reloc.r_offset;
144 #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
145 reloc_processing(relent, reloc, symbols, abfd, section)
147 static void reloc_processing (relent, reloc, symbols, abfd, section)
149 struct internal_reloc *reloc;
154 relent->address = reloc->r_vaddr;
155 rtype2howto (relent, reloc);
157 if (reloc->r_symndx > 0)
159 relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
163 relent->sym_ptr_ptr = &(bfd_abs_symbol);
167 relent->addend = reloc->r_offset;
168 relent->address -= section->vma;
172 extra_case (in_abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)
174 struct bfd_link_info *link_info;
175 struct bfd_link_order *link_order;
178 unsigned int *src_ptr;
179 unsigned int *dst_ptr;
181 bfd_byte *d = data+*dst_ptr;
182 asection *input_section = link_order->u.indirect.section;
183 switch (reloc->howto->type)
187 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
195 (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
204 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
212 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
221 (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
231 int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section);
232 int o = bfd_get_32(in_abfd, data+ *dst_ptr -1);
233 v = (v & 0x00ffffff) | (o & 0xff00000);
234 bfd_put_32 (in_abfd, v, data + *dst_ptr -1);
241 int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section);
242 bfd_put_32 (in_abfd, v, data + *dst_ptr);
251 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
253 bfd_vma dot = link_order->offset
255 + link_order->u.indirect.section->output_section->vma;
256 int gap = dst - dot - 1; /* -1 since were in the odd byte of the
257 word and the pc's been incremented */
259 if (gap > 128 || gap < -128)
261 if (! ((*link_info->callbacks->reloc_overflow)
262 (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
263 reloc->howto->name, reloc->addend, input_section->owner,
264 input_section, reloc->address)))
267 bfd_put_8 (in_abfd, gap, data + *dst_ptr);
272 case R_H8500_PCREL16:
274 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
276 bfd_vma dot = link_order->offset
278 + link_order->u.indirect.section->output_section->vma;
279 int gap = dst - dot - 1; /* -1 since were in the odd byte of the
280 word and the pc's been incremented */
282 if (gap > 32767 || gap < -32768)
284 if (! ((*link_info->callbacks->reloc_overflow)
285 (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
286 reloc->howto->name, reloc->addend, input_section->owner,
287 input_section, reloc->address)))
290 bfd_put_16 (in_abfd, gap, data + *dst_ptr);
301 #define coff_reloc16_extra_cases extra_case
303 #include "coffcode.h"
306 #undef coff_bfd_get_relocated_section_contents
307 #undef coff_bfd_relax_section
308 #define coff_bfd_get_relocated_section_contents \
309 bfd_coff_reloc16_get_relocated_section_contents
310 #define coff_bfd_relax_section bfd_coff_reloc16_relax_section
312 bfd_target h8500coff_vec =
314 "coff-h8500", /* name */
315 bfd_target_coff_flavour,
316 true, /* data byte order is big */
317 true, /* header byte order is big */
319 (HAS_RELOC | EXEC_P | /* object flags */
320 HAS_LINENO | HAS_DEBUG |
321 HAS_SYMS | HAS_LOCALS | WP_TEXT),
323 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
324 '_', /* leading symbol underscore */
325 '/', /* ar_pad_char */
326 15, /* ar_max_namelen */
327 1, /* minimum section alignment */
328 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
329 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
330 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
331 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
332 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
333 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
335 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
336 bfd_generic_archive_p, _bfd_dummy_target},
337 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
339 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
340 _bfd_write_archive_contents, bfd_false},