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46dd0622 SC |
1 | /* BFD back-end for Hitachi H8/500 COFF binaries. |
2 | Copyright 1993 Free Software Foundation, Inc. | |
3 | Contributed by Cygnus Support. | |
4 | Written by Steve Chamberlain, <[email protected]>. | |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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. */ | |
21 | ||
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
46dd0622 | 24 | #include "obstack.h" |
4991ebb9 ILT |
25 | #include "libbfd.h" |
26 | #include "bfdlink.h" | |
46dd0622 SC |
27 | #include "coff/h8500.h" |
28 | #include "coff/internal.h" | |
29 | #include "libcoff.h" | |
46dd0622 SC |
30 | |
31 | static reloc_howto_type r_imm8 = | |
4991ebb9 ILT |
32 | HOWTO (R_H8500_IMM8, 0, 1, 8, false, 0, |
33 | complain_overflow_bitfield, 0, "r_imm8", true, 0x000000ff, 0x000000ff, false); | |
46dd0622 SC |
34 | |
35 | static reloc_howto_type r_imm16 = | |
4991ebb9 ILT |
36 | HOWTO (R_H8500_IMM16, 0, 1, 16, false, 0, |
37 | complain_overflow_bitfield, 0, "r_imm16", true, 0x0000ffff, 0x0000ffff, false); | |
46dd0622 SC |
38 | |
39 | static reloc_howto_type r_imm24 = | |
4991ebb9 ILT |
40 | HOWTO (R_H8500_IMM24, 0, 1, 24, false, 0, |
41 | complain_overflow_bitfield, 0, "r_imm24", true, 0x00ffffff, 0x00ffffff, false); | |
46dd0622 SC |
42 | |
43 | static reloc_howto_type r_imm32 = | |
4991ebb9 ILT |
44 | HOWTO (R_H8500_IMM32, 0, 1, 32, false, 0, |
45 | complain_overflow_bitfield, 0, "r_imm32", true, 0xffffffff, 0xffffffff, false); | |
46dd0622 SC |
46 | |
47 | ||
48 | static reloc_howto_type r_high8 = | |
4991ebb9 ILT |
49 | HOWTO (R_H8500_HIGH8, 0, 1, 8, false, 0, |
50 | complain_overflow_bitfield, 0, "r_high8", true, 0x000000ff, 0x000000ff, false); | |
46dd0622 SC |
51 | |
52 | static reloc_howto_type r_low16 = | |
4991ebb9 ILT |
53 | HOWTO (R_H8500_LOW16, 0, 1, 16, false, 0, |
54 | complain_overflow_bitfield, 0, "r_low16", true, 0x0000ffff, 0x0000ffff, false); | |
46dd0622 SC |
55 | |
56 | static reloc_howto_type r_pcrel8 = | |
4991ebb9 | 57 | HOWTO (R_H8500_PCREL8, 0, 1, 8, true, 0, complain_overflow_signed, 0, "r_pcrel8", true, 0, 0, true); |
46dd0622 SC |
58 | |
59 | ||
60 | static reloc_howto_type r_pcrel16 = | |
4991ebb9 | 61 | HOWTO (R_H8500_PCREL16, 0, 1, 16, true, 0, complain_overflow_signed, 0, "r_pcrel16", true, 0, 0, true); |
46dd0622 SC |
62 | |
63 | static reloc_howto_type r_high16 = | |
4991ebb9 ILT |
64 | HOWTO (R_H8500_HIGH16, 0, 1, 8, false, 0, |
65 | complain_overflow_bitfield, 0, "r_high16", true, 0x000ffff, 0x0000ffff, false); | |
46dd0622 SC |
66 | |
67 | ||
68 | /* Turn a howto into a reloc number */ | |
69 | ||
70 | static int | |
71 | coff_h8500_select_reloc (howto) | |
72 | reloc_howto_type *howto; | |
73 | { | |
74 | return howto->type; | |
75 | } | |
76 | ||
77 | #define SELECT_RELOC(x,howto) x= coff_h8500_select_reloc(howto) | |
78 | ||
79 | ||
80 | #define BADMAG(x) H8500BADMAG(x) | |
81 | #define H8500 1 /* Customize coffcode.h */ | |
82 | ||
83 | #define __A_MAGIC_SET__ | |
84 | ||
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'; | |
91 | ||
92 | /* Code to turn a r_type into a howto ptr, uses the above howto table | |
93 | */ | |
94 | ||
95 | static void | |
96 | rtype2howto(internal, dst) | |
97 | arelent * internal; | |
98 | struct internal_reloc *dst; | |
99 | { | |
100 | switch (dst->r_type) | |
101 | { | |
102 | default: | |
4991ebb9 | 103 | fprintf (stderr, "BAD 0x%x\n", dst->r_type); |
46dd0622 SC |
104 | case R_H8500_IMM8: |
105 | internal->howto = &r_imm8; | |
106 | break; | |
107 | case R_H8500_IMM16: | |
108 | internal->howto = &r_imm16; | |
109 | break; | |
110 | case R_H8500_IMM24: | |
111 | internal->howto = &r_imm24; | |
112 | break; | |
113 | case R_H8500_IMM32: | |
114 | internal->howto = &r_imm32; | |
115 | break; | |
116 | case R_H8500_PCREL8: | |
117 | internal->howto = &r_pcrel8; | |
118 | break; | |
119 | case R_H8500_PCREL16: | |
120 | internal->howto = &r_pcrel16; | |
121 | break; | |
122 | case R_H8500_HIGH8: | |
123 | internal->howto = &r_high8; | |
124 | break; | |
125 | case R_H8500_HIGH16: | |
126 | internal->howto = &r_high16; | |
127 | break; | |
128 | case R_H8500_LOW16: | |
129 | internal->howto = &r_low16; | |
130 | break; | |
131 | } | |
132 | } | |
133 | ||
134 | #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry) | |
135 | ||
136 | ||
137 | /* Perform any necessaru magic to the addend in a reloc entry */ | |
138 | ||
139 | ||
140 | #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \ | |
141 | cache_ptr->addend = ext_reloc.r_offset; | |
142 | ||
143 | ||
144 | #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \ | |
145 | reloc_processing(relent, reloc, symbols, abfd, section) | |
146 | ||
147 | static void reloc_processing (relent, reloc, symbols, abfd, section) | |
148 | arelent * relent; | |
149 | struct internal_reloc *reloc; | |
150 | asymbol ** symbols; | |
151 | bfd * abfd; | |
152 | asection * section; | |
153 | { | |
154 | relent->address = reloc->r_vaddr; | |
155 | rtype2howto (relent, reloc); | |
156 | ||
157 | if (reloc->r_symndx > 0) | |
158 | { | |
159 | relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; | |
160 | } | |
161 | else | |
162 | { | |
163 | relent->sym_ptr_ptr = &(bfd_abs_symbol); | |
164 | } | |
165 | ||
166 | ||
167 | relent->addend = reloc->r_offset; | |
168 | relent->address -= section->vma; | |
169 | } | |
170 | ||
171 | static void | |
4991ebb9 | 172 | extra_case (in_abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr) |
46dd0622 | 173 | bfd *in_abfd; |
4991ebb9 ILT |
174 | struct bfd_link_info *link_info; |
175 | struct bfd_link_order *link_order; | |
46dd0622 SC |
176 | arelent *reloc; |
177 | bfd_byte *data; | |
178 | unsigned int *src_ptr; | |
179 | unsigned int *dst_ptr; | |
180 | { | |
181 | bfd_byte *d = data+*dst_ptr; | |
4991ebb9 | 182 | asection *input_section = link_order->u.indirect.section; |
46dd0622 SC |
183 | switch (reloc->howto->type) |
184 | { | |
185 | case R_H8500_IMM8: | |
186 | bfd_put_8 (in_abfd, | |
4991ebb9 | 187 | bfd_coff_reloc16_get_value (reloc, link_info, input_section), |
46dd0622 SC |
188 | d); |
189 | (*dst_ptr) += 1; | |
190 | (*src_ptr) += 1; | |
191 | break; | |
192 | ||
193 | case R_H8500_HIGH8: | |
194 | bfd_put_8 (in_abfd, | |
4991ebb9 ILT |
195 | (bfd_coff_reloc16_get_value (reloc, link_info, input_section) |
196 | >> 16), | |
46dd0622 SC |
197 | d ); |
198 | (*dst_ptr) += 1; | |
199 | (*src_ptr) += 1; | |
200 | break; | |
201 | ||
202 | case R_H8500_IMM16: | |
203 | bfd_put_16 (in_abfd, | |
4991ebb9 | 204 | bfd_coff_reloc16_get_value (reloc, link_info, input_section), |
46dd0622 SC |
205 | d ); |
206 | (*dst_ptr) += 2; | |
207 | (*src_ptr) += 2; | |
208 | break; | |
209 | ||
210 | case R_H8500_LOW16: | |
211 | bfd_put_16 (in_abfd, | |
4991ebb9 | 212 | bfd_coff_reloc16_get_value (reloc, link_info, input_section), |
46dd0622 SC |
213 | d); |
214 | ||
215 | (*dst_ptr) += 2; | |
216 | (*src_ptr) += 2; | |
217 | break; | |
218 | ||
219 | case R_H8500_HIGH16: | |
220 | bfd_put_16 (in_abfd, | |
4991ebb9 ILT |
221 | (bfd_coff_reloc16_get_value (reloc, link_info, input_section) |
222 | >>16), | |
46dd0622 SC |
223 | d); |
224 | ||
225 | (*dst_ptr) += 2; | |
226 | (*src_ptr) += 2; | |
227 | break; | |
228 | ||
229 | case R_H8500_IMM24: | |
230 | { | |
4991ebb9 | 231 | int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section); |
46dd0622 SC |
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); | |
235 | (*dst_ptr) +=3; | |
236 | (*src_ptr)+=3;; | |
237 | } | |
238 | break; | |
239 | case R_H8500_IMM32: | |
240 | { | |
4991ebb9 | 241 | int v = bfd_coff_reloc16_get_value(reloc, link_info, input_section); |
46dd0622 SC |
242 | bfd_put_32 (in_abfd, v, data + *dst_ptr); |
243 | (*dst_ptr) +=4; | |
244 | (*src_ptr)+=4;; | |
245 | } | |
246 | break; | |
247 | ||
248 | ||
249 | case R_H8500_PCREL8: | |
250 | { | |
4991ebb9 ILT |
251 | bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info, |
252 | input_section); | |
253 | bfd_vma dot = link_order->offset | |
46dd0622 | 254 | + *dst_ptr |
4991ebb9 | 255 | + link_order->u.indirect.section->output_section->vma; |
46dd0622 SC |
256 | int gap = dst - dot - 1; /* -1 since were in the odd byte of the |
257 | word and the pc's been incremented */ | |
258 | ||
259 | if (gap > 128 || gap < -128) | |
260 | { | |
4991ebb9 ILT |
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))) | |
265 | abort (); | |
46dd0622 SC |
266 | } |
267 | bfd_put_8 (in_abfd, gap, data + *dst_ptr); | |
268 | (*dst_ptr)++; | |
269 | (*src_ptr)++; | |
270 | break; | |
271 | } | |
272 | case R_H8500_PCREL16: | |
273 | { | |
4991ebb9 ILT |
274 | bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info, |
275 | input_section); | |
276 | bfd_vma dot = link_order->offset | |
46dd0622 | 277 | + *dst_ptr |
4991ebb9 | 278 | + link_order->u.indirect.section->output_section->vma; |
46dd0622 SC |
279 | int gap = dst - dot - 1; /* -1 since were in the odd byte of the |
280 | word and the pc's been incremented */ | |
281 | ||
282 | if (gap > 32767 || gap < -32768) | |
283 | { | |
4991ebb9 ILT |
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))) | |
288 | abort (); | |
46dd0622 SC |
289 | } |
290 | bfd_put_16 (in_abfd, gap, data + *dst_ptr); | |
291 | (*dst_ptr)+=2; | |
292 | (*src_ptr)+=2; | |
293 | break; | |
294 | } | |
295 | ||
296 | default: | |
297 | abort (); | |
298 | } | |
299 | } | |
300 | ||
301 | #define coff_reloc16_extra_cases extra_case | |
302 | ||
303 | #include "coffcode.h" | |
304 | ||
305 | ||
306 | #undef coff_bfd_get_relocated_section_contents | |
307 | #undef coff_bfd_relax_section | |
4991ebb9 ILT |
308 | #define coff_bfd_get_relocated_section_contents \ |
309 | bfd_coff_reloc16_get_relocated_section_contents | |
46dd0622 SC |
310 | #define coff_bfd_relax_section bfd_coff_reloc16_relax_section |
311 | ||
312 | bfd_target h8500coff_vec = | |
313 | { | |
314 | "coff-h8500", /* name */ | |
315 | bfd_target_coff_flavour, | |
316 | true, /* data byte order is big */ | |
317 | true, /* header byte order is big */ | |
318 | ||
319 | (HAS_RELOC | EXEC_P | /* object flags */ | |
320 | HAS_LINENO | HAS_DEBUG | | |
4991ebb9 | 321 | HAS_SYMS | HAS_LOCALS | WP_TEXT), |
46dd0622 SC |
322 | |
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 */ | |
4991ebb9 ILT |
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 */ | |
46dd0622 SC |
334 | |
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 */ | |
338 | bfd_false}, | |
339 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
340 | _bfd_write_archive_contents, bfd_false}, | |
341 | ||
342 | JUMP_TABLE (coff), | |
343 | COFF_SWAP_TABLE, | |
344 | }; |