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);
49 static reloc_howto_type r_high8 =
50 HOWTO (R_H8500_HIGH8, 0, 1, 8, false, 0,
51 complain_overflow_dont, 0, "r_high8", true, 0x000000ff, 0x000000ff, false);
53 static reloc_howto_type r_low16 =
54 HOWTO (R_H8500_LOW16, 0, 1, 16, false, 0,
55 complain_overflow_dont, 0, "r_low16", true, 0x0000ffff, 0x0000ffff, false);
57 static reloc_howto_type r_pcrel8 =
58 HOWTO (R_H8500_PCREL8, 0, 1, 8, true, 0, complain_overflow_signed, 0, "r_pcrel8", true, 0, 0, true);
61 static reloc_howto_type r_pcrel16 =
62 HOWTO (R_H8500_PCREL16, 0, 1, 16, true, 0, complain_overflow_signed, 0, "r_pcrel16", true, 0, 0, true);
64 static reloc_howto_type r_high16 =
65 HOWTO (R_H8500_HIGH16, 0, 1, 8, false, 0,
66 complain_overflow_dont, 0, "r_high16", true, 0x000ffff, 0x0000ffff, false);
69 /* Turn a howto into a reloc number */
72 coff_h8500_select_reloc (howto)
73 reloc_howto_type *howto;
78 #define SELECT_RELOC(x,howto) x.r_type = coff_h8500_select_reloc(howto)
81 #define BADMAG(x) H8500BADMAG(x)
82 #define H8500 1 /* Customize coffcode.h */
84 #define __A_MAGIC_SET__
86 /* Code to swap in the reloc */
87 #define SWAP_IN_RELOC_OFFSET bfd_h_get_32
88 #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
89 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
90 dst->r_stuff[0] = 'S'; \
91 dst->r_stuff[1] = 'C';
93 /* Code to turn a r_type into a howto ptr, uses the above howto table
97 rtype2howto(internal, dst)
99 struct internal_reloc *dst;
107 internal->howto = &r_imm8;
110 internal->howto = &r_imm16;
113 internal->howto = &r_imm24;
116 internal->howto = &r_imm32;
119 internal->howto = &r_pcrel8;
121 case R_H8500_PCREL16:
122 internal->howto = &r_pcrel16;
125 internal->howto = &r_high8;
128 internal->howto = &r_high16;
131 internal->howto = &r_low16;
136 #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
139 /* Perform any necessary magic to the addend in a reloc entry */
142 #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
143 cache_ptr->addend = ext_reloc.r_offset;
146 #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
147 reloc_processing(relent, reloc, symbols, abfd, section)
149 static void reloc_processing (relent, reloc, symbols, abfd, section)
151 struct internal_reloc *reloc;
156 relent->address = reloc->r_vaddr;
157 rtype2howto (relent, reloc);
159 if (reloc->r_symndx > 0)
161 relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
165 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
169 relent->addend = reloc->r_offset;
170 relent->address -= section->vma;
174 extra_case (in_abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)
176 struct bfd_link_info *link_info;
177 struct bfd_link_order *link_order;
180 unsigned int *src_ptr;
181 unsigned int *dst_ptr;
183 bfd_byte *d = data+*dst_ptr;
184 asection *input_section = link_order->u.indirect.section;
185 switch (reloc->howto->type)
189 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
197 (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
206 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
214 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
223 (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
233 int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section);
234 int o = bfd_get_32(in_abfd, data+ *dst_ptr -1);
235 v = (v & 0x00ffffff) | (o & 0xff00000);
236 bfd_put_32 (in_abfd, v, data + *dst_ptr -1);
243 int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section);
244 bfd_put_32 (in_abfd, v, data + *dst_ptr);
253 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
255 bfd_vma dot = link_order->offset
257 + link_order->u.indirect.section->output_section->vma;
258 int gap = dst - dot - 1; /* -1 since were in the odd byte of the
259 word and the pc's been incremented */
261 if (gap > 128 || gap < -128)
263 if (! ((*link_info->callbacks->reloc_overflow)
264 (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
265 reloc->howto->name, reloc->addend, input_section->owner,
266 input_section, reloc->address)))
269 bfd_put_8 (in_abfd, gap, data + *dst_ptr);
274 case R_H8500_PCREL16:
276 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
278 bfd_vma dot = link_order->offset
280 + link_order->u.indirect.section->output_section->vma;
281 int gap = dst - dot - 1; /* -1 since were in the odd byte of the
282 word and the pc's been incremented */
284 if (gap > 32767 || gap < -32768)
286 if (! ((*link_info->callbacks->reloc_overflow)
287 (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr),
288 reloc->howto->name, reloc->addend, input_section->owner,
289 input_section, reloc->address)))
292 bfd_put_16 (in_abfd, gap, data + *dst_ptr);
303 #define coff_reloc16_extra_cases extra_case
305 #include "coffcode.h"
308 #undef coff_bfd_get_relocated_section_contents
309 #undef coff_bfd_relax_section
310 #define coff_bfd_get_relocated_section_contents \
311 bfd_coff_reloc16_get_relocated_section_contents
312 #define coff_bfd_relax_section bfd_coff_reloc16_relax_section
314 CREATE_BIG_COFF_TARGET_VEC (h8500coff_vec, "coff-h8500", 0, 0, '_', NULL)