1 /* BFD back-end for Renesas H8/500 COFF binaries.
2 Copyright (C) 1993-2014 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
27 #include "coff/h8500.h"
28 #include "coff/internal.h"
32 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
34 static reloc_howto_type r_imm8 =
35 HOWTO (R_H8500_IMM8, 0, 1, 8, FALSE, 0,
36 complain_overflow_bitfield, 0, "r_imm8", TRUE, 0x000000ff, 0x000000ff, FALSE);
38 static reloc_howto_type r_imm16 =
39 HOWTO (R_H8500_IMM16, 0, 1, 16, FALSE, 0,
40 complain_overflow_bitfield, 0, "r_imm16", TRUE, 0x0000ffff, 0x0000ffff, FALSE);
42 static reloc_howto_type r_imm24 =
43 HOWTO (R_H8500_IMM24, 0, 1, 24, FALSE, 0,
44 complain_overflow_bitfield, 0, "r_imm24", TRUE, 0x00ffffff, 0x00ffffff, FALSE);
46 static reloc_howto_type r_imm32 =
47 HOWTO (R_H8500_IMM32, 0, 1, 32, FALSE, 0,
48 complain_overflow_bitfield, 0, "r_imm32", TRUE, 0xffffffff, 0xffffffff, FALSE);
50 static reloc_howto_type r_high8 =
51 HOWTO (R_H8500_HIGH8, 0, 1, 8, FALSE, 0,
52 complain_overflow_dont, 0, "r_high8", TRUE, 0x000000ff, 0x000000ff, FALSE);
54 static reloc_howto_type r_low16 =
55 HOWTO (R_H8500_LOW16, 0, 1, 16, FALSE, 0,
56 complain_overflow_dont, 0, "r_low16", TRUE, 0x0000ffff, 0x0000ffff, FALSE);
58 static reloc_howto_type r_pcrel8 =
59 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);
68 /* Turn a howto into a reloc number. */
71 coff_h8500_select_reloc (reloc_howto_type *howto)
76 #define SELECT_RELOC(x,howto) x.r_type = coff_h8500_select_reloc(howto)
78 #define BADMAG(x) H8500BADMAG(x)
79 #define H8500 1 /* Customize coffcode.h */
81 #define __A_MAGIC_SET__
83 /* Code to swap in the reloc. */
84 #define SWAP_IN_RELOC_OFFSET H_GET_32
85 #define SWAP_OUT_RELOC_OFFSET H_PUT_32
86 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
87 dst->r_stuff[0] = 'S'; \
88 dst->r_stuff[1] = 'C';
90 /* Code to turn a r_type into a howto ptr, uses the above howto table. */
93 rtype2howto (arelent * internal, struct internal_reloc *dst)
98 internal->howto = NULL;
101 internal->howto = &r_imm8;
104 internal->howto = &r_imm16;
107 internal->howto = &r_imm24;
110 internal->howto = &r_imm32;
113 internal->howto = &r_pcrel8;
115 case R_H8500_PCREL16:
116 internal->howto = &r_pcrel16;
119 internal->howto = &r_high8;
122 internal->howto = &r_high16;
125 internal->howto = &r_low16;
130 #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
132 /* Perform any necessary magic to the addend in a reloc entry. */
134 #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
135 cache_ptr->addend = ext_reloc.r_offset;
137 #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
138 reloc_processing(relent, reloc, symbols, abfd, section)
141 reloc_processing (arelent * relent,
142 struct internal_reloc *reloc,
147 relent->address = reloc->r_vaddr;
148 rtype2howto (relent, reloc);
150 if (reloc->r_symndx > 0)
151 relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
153 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
155 relent->addend = reloc->r_offset;
156 relent->address -= section->vma;
160 extra_case (bfd *in_abfd,
161 struct bfd_link_info *link_info,
162 struct bfd_link_order *link_order,
165 unsigned int *src_ptr,
166 unsigned int *dst_ptr)
168 bfd_byte *d = data+*dst_ptr;
169 asection *input_section = link_order->u.indirect.section;
171 switch (reloc->howto->type)
175 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
183 (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
192 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
200 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
209 (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
219 int v = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
220 int o = bfd_get_32 (in_abfd, data+ *dst_ptr -1);
221 v = (v & 0x00ffffff) | (o & 0xff00000);
222 bfd_put_32 (in_abfd, (bfd_vma) v, data + *dst_ptr -1);
229 int v = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
230 bfd_put_32 (in_abfd, (bfd_vma) v, data + *dst_ptr);
238 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
240 bfd_vma dot = (*dst_ptr
241 + input_section->output_offset
242 + input_section->output_section->vma);
243 int gap = dst - dot - 1; /* -1 since were in the odd byte of the
244 word and the pc's been incremented. */
246 if (gap > 128 || gap < -128)
248 if (! ((*link_info->callbacks->reloc_overflow)
250 bfd_asymbol_name (*reloc->sym_ptr_ptr),
251 reloc->howto->name, reloc->addend, input_section->owner,
252 input_section, reloc->address)))
255 bfd_put_8 (in_abfd, gap, data + *dst_ptr);
260 case R_H8500_PCREL16:
262 bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
264 bfd_vma dot = (*dst_ptr
265 + input_section->output_offset
266 + input_section->output_section->vma);
267 int gap = dst - dot - 1; /* -1 since were in the odd byte of the
268 word and the pc's been incremented. */
270 if (gap > 32767 || gap < -32768)
272 if (! ((*link_info->callbacks->reloc_overflow)
274 bfd_asymbol_name (*reloc->sym_ptr_ptr),
275 reloc->howto->name, reloc->addend, input_section->owner,
276 input_section, reloc->address)))
279 bfd_put_16 (in_abfd, (bfd_vma) gap, data + *dst_ptr);
290 #define coff_reloc16_extra_cases extra_case
292 #ifndef bfd_pe_print_pdata
293 #define bfd_pe_print_pdata NULL
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 (h8500_coff_vec, "coff-h8500", 0, 0, '_', NULL, COFF_SWAP_TABLE)