1 /* BFD back-end for Hitachi H8/500 COFF binaries.
2 Copyright 1993, 94, 95, 1997 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
26 #include "coff/h8500.h"
27 #include "coff/internal.h"
30 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
32 static reloc_howto_type r_imm8 =
33 HOWTO (R_H8500_IMM8, 0, 1, 8, false, 0,
34 complain_overflow_bitfield, 0, "r_imm8", true, 0x000000ff, 0x000000ff, false);
36 static reloc_howto_type r_imm16 =
37 HOWTO (R_H8500_IMM16, 0, 1, 16, false, 0,
38 complain_overflow_bitfield, 0, "r_imm16", true, 0x0000ffff, 0x0000ffff, false);
40 static reloc_howto_type r_imm24 =
41 HOWTO (R_H8500_IMM24, 0, 1, 24, false, 0,
42 complain_overflow_bitfield, 0, "r_imm24", true, 0x00ffffff, 0x00ffffff, false);
44 static reloc_howto_type r_imm32 =
45 HOWTO (R_H8500_IMM32, 0, 1, 32, false, 0,
46 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);
59 static reloc_howto_type r_pcrel16 =
60 HOWTO (R_H8500_PCREL16, 0, 1, 16, true, 0, complain_overflow_signed, 0, "r_pcrel16", true, 0, 0, true);
62 static reloc_howto_type r_high16 =
63 HOWTO (R_H8500_HIGH16, 0, 1, 8, false, 0,
64 complain_overflow_dont, 0, "r_high16", true, 0x000ffff, 0x0000ffff, false);
66 /* Turn a howto into a reloc number */
69 coff_h8500_select_reloc (howto)
70 reloc_howto_type *howto;
75 #define SELECT_RELOC(x,howto) x.r_type = coff_h8500_select_reloc(howto)
77 #define BADMAG(x) H8500BADMAG(x)
78 #define H8500 1 /* Customize coffcode.h */
80 #define __A_MAGIC_SET__
82 /* Code to swap in the reloc */
83 #define SWAP_IN_RELOC_OFFSET bfd_h_get_32
84 #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
85 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
86 dst->r_stuff[0] = 'S'; \
87 dst->r_stuff[1] = 'C';
89 /* Code to turn a r_type into a howto ptr, uses the above howto table
93 rtype2howto(internal, dst)
95 struct internal_reloc *dst;
103 internal->howto = &r_imm8;
106 internal->howto = &r_imm16;
109 internal->howto = &r_imm24;
112 internal->howto = &r_imm32;
115 internal->howto = &r_pcrel8;
117 case R_H8500_PCREL16:
118 internal->howto = &r_pcrel16;
121 internal->howto = &r_high8;
124 internal->howto = &r_high16;
127 internal->howto = &r_low16;
132 #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
134 /* Perform any necessary magic to the addend in a reloc entry */
136 #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
137 cache_ptr->addend = ext_reloc.r_offset;
139 #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
140 reloc_processing(relent, reloc, symbols, abfd, section)
142 static void reloc_processing (relent, reloc, symbols, abfd, section)
144 struct internal_reloc *reloc;
149 relent->address = reloc->r_vaddr;
150 rtype2howto (relent, reloc);
152 if (reloc->r_symndx > 0)
154 relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
158 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
161 relent->addend = reloc->r_offset;
162 relent->address -= section->vma;
166 extra_case (in_abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)
168 struct bfd_link_info *link_info;
169 struct bfd_link_order *link_order;
172 unsigned int *src_ptr;
173 unsigned int *dst_ptr;
175 bfd_byte *d = data+*dst_ptr;
176 asection *input_section = link_order->u.indirect.section;
177 switch (reloc->howto->type)
181 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
189 (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
198 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
206 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
215 (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
225 int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section);
226 int o = bfd_get_32(in_abfd, data+ *dst_ptr -1);
227 v = (v & 0x00ffffff) | (o & 0xff00000);
228 bfd_put_32 (in_abfd, v, data + *dst_ptr -1);
235 int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section);
236 bfd_put_32 (in_abfd, v, data + *dst_ptr);
244 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
246 bfd_vma dot = link_order->offset
248 + link_order->u.indirect.section->output_section->vma;
249 int gap = dst - dot - 1; /* -1 since were in the odd byte of the
250 word and the pc's been incremented */
252 if (gap > 128 || gap < -128)
254 if (! ((*link_info->callbacks->reloc_overflow)
255 (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
256 reloc->howto->name, reloc->addend, input_section->owner,
257 input_section, reloc->address)))
260 bfd_put_8 (in_abfd, gap, data + *dst_ptr);
265 case R_H8500_PCREL16:
267 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
269 bfd_vma dot = link_order->offset
271 + link_order->u.indirect.section->output_section->vma;
272 int gap = dst - dot - 1; /* -1 since were in the odd byte of the
273 word and the pc's been incremented */
275 if (gap > 32767 || gap < -32768)
277 if (! ((*link_info->callbacks->reloc_overflow)
278 (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
279 reloc->howto->name, reloc->addend, input_section->owner,
280 input_section, reloc->address)))
283 bfd_put_16 (in_abfd, gap, data + *dst_ptr);
294 #define coff_reloc16_extra_cases extra_case
296 #include "coffcode.h"
298 #undef coff_bfd_get_relocated_section_contents
299 #undef coff_bfd_relax_section
300 #define coff_bfd_get_relocated_section_contents \
301 bfd_coff_reloc16_get_relocated_section_contents
302 #define coff_bfd_relax_section bfd_coff_reloc16_relax_section
304 CREATE_BIG_COFF_TARGET_VEC (h8500coff_vec, "coff-h8500", 0, 0, '_', NULL)