Commit | Line | Data |
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e01b0e69 JR |
1 | /* Generic support for 32-bit ELF |
2 | Copyright 1993, 1995, 1998, 1999 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include "bfd.h" | |
21 | #include "sysdep.h" | |
22 | #include "libbfd.h" | |
23 | #include "elf-bfd.h" | |
24 | #include "elf/h8.h" | |
25 | ||
26 | static reloc_howto_type *elf32_h8_reloc_type_lookup | |
27 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); | |
28 | static void elf32_h8_info_to_howto | |
29 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); | |
5e47149d JL |
30 | static void elf32_h8_info_to_howto_rel |
31 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); | |
32 | static int elf32_h8_mach | |
33 | PARAMS ((flagword)); | |
34 | static bfd_reloc_status_type elf32_h8_final_link_relocate | |
35 | PARAMS ((unsigned long, bfd *, bfd *, asection *, | |
36 | bfd_byte *, bfd_vma, bfd_vma, bfd_vma, | |
37 | struct bfd_link_info *, asection *, int)); | |
38 | static boolean elf32_h8_relocate_section | |
39 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, | |
40 | bfd_byte *, Elf_Internal_Rela *, | |
41 | Elf_Internal_Sym *, asection **)); | |
a00c9dbc JL |
42 | static bfd_reloc_status_type special |
43 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
e01b0e69 JR |
44 | |
45 | /* This does not include any relocation information, but should be | |
46 | good enough for GDB or objdump to read the file. */ | |
47 | ||
48 | static reloc_howto_type h8_elf_howto_table[] = | |
49 | { | |
50 | #define R_H8_NONE_X 0 | |
51 | HOWTO (R_H8_NONE, /* type */ | |
52 | 0, /* rightshift */ | |
53 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
54 | 0, /* bitsize */ | |
55 | false, /* pc_relative */ | |
56 | 0, /* bitpos */ | |
57 | complain_overflow_dont, /* complain_on_overflow */ | |
a00c9dbc | 58 | special, /* special_function */ |
e01b0e69 JR |
59 | "R_H8_NONE", /* name */ |
60 | false, /* partial_inplace */ | |
61 | 0, /* src_mask */ | |
62 | 0, /* dst_mask */ | |
63 | false), /* pcrel_offset */ | |
64 | #define R_H8_DIR32_X (R_H8_NONE_X + 1) | |
65 | HOWTO (R_H8_DIR32, /* type */ | |
66 | 0, /* rightshift */ | |
67 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
68 | 32, /* bitsize */ | |
69 | false, /* pc_relative */ | |
70 | 0, /* bitpos */ | |
71 | complain_overflow_dont, /* complain_on_overflow */ | |
a00c9dbc | 72 | special, /* special_function */ |
e01b0e69 JR |
73 | "R_H8_DIR32", /* name */ |
74 | false, /* partial_inplace */ | |
75 | 0, /* src_mask */ | |
76 | 0xffffffff, /* dst_mask */ | |
77 | false), /* pcrel_offset */ | |
78 | #define R_H8_DIR16_X (R_H8_DIR32_X + 1) | |
79 | HOWTO (R_H8_DIR16, /* type */ | |
80 | 0, /* rightshift */ | |
81 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
82 | 16, /* bitsize */ | |
83 | false, /* pc_relative */ | |
84 | 0, /* bitpos */ | |
85 | complain_overflow_dont, /* complain_on_overflow */ | |
a00c9dbc | 86 | special, /* special_function */ |
e01b0e69 JR |
87 | "R_H8_DIR16", /* name */ |
88 | false, /* partial_inplace */ | |
89 | 0, /* src_mask */ | |
90 | 0x0000ffff, /* dst_mask */ | |
91 | false), /* pcrel_offset */ | |
92 | #define R_H8_DIR8_X (R_H8_DIR16_X + 1) | |
93 | HOWTO (R_H8_DIR8, /* type */ | |
94 | 0, /* rightshift */ | |
95 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
96 | 8, /* bitsize */ | |
97 | false, /* pc_relative */ | |
98 | 0, /* bitpos */ | |
99 | complain_overflow_dont, /* complain_on_overflow */ | |
a00c9dbc | 100 | special, /* special_function */ |
e01b0e69 JR |
101 | "R_H8_DIR16", /* name */ |
102 | false, /* partial_inplace */ | |
103 | 0, /* src_mask */ | |
104 | 0x000000ff, /* dst_mask */ | |
105 | false), /* pcrel_offset */ | |
106 | #define R_H8_DIR16A8_X (R_H8_DIR8_X + 1) | |
107 | HOWTO (R_H8_DIR16A8, /* type */ | |
108 | 0, /* rightshift */ | |
109 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
110 | 16, /* bitsize */ | |
111 | false, /* pc_relative */ | |
112 | 0, /* bitpos */ | |
113 | complain_overflow_bitfield, /* complain_on_overflow */ | |
a00c9dbc | 114 | special, /* special_function */ |
e01b0e69 JR |
115 | "R_H8_DIR16A8", /* name */ |
116 | false, /* partial_inplace */ | |
117 | 0, /* src_mask */ | |
118 | 0x0000ffff, /* dst_mask */ | |
119 | false), /* pcrel_offset */ | |
120 | #define R_H8_DIR16R8_X (R_H8_DIR16A8_X + 1) | |
121 | HOWTO (R_H8_DIR16R8, /* type */ | |
122 | 0, /* rightshift */ | |
123 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
124 | 16, /* bitsize */ | |
125 | false, /* pc_relative */ | |
126 | 0, /* bitpos */ | |
127 | complain_overflow_bitfield, /* complain_on_overflow */ | |
a00c9dbc | 128 | special, /* special_function */ |
e01b0e69 JR |
129 | "R_H8_DIR16R8", /* name */ |
130 | false, /* partial_inplace */ | |
131 | 0, /* src_mask */ | |
132 | 0x0000ffff, /* dst_mask */ | |
133 | false), /* pcrel_offset */ | |
134 | #define R_H8_DIR24A8_X (R_H8_DIR16R8_X + 1) | |
135 | HOWTO (R_H8_DIR24A8, /* type */ | |
136 | 0, /* rightshift */ | |
137 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
138 | 24, /* bitsize */ | |
139 | false, /* pc_relative */ | |
140 | 0, /* bitpos */ | |
141 | complain_overflow_bitfield, /* complain_on_overflow */ | |
a00c9dbc | 142 | special, /* special_function */ |
e01b0e69 JR |
143 | "R_H8_DIR24A8", /* name */ |
144 | true, /* partial_inplace */ | |
145 | 0xff000000, /* src_mask */ | |
146 | 0x00ffffff, /* dst_mask */ | |
147 | false), /* pcrel_offset */ | |
148 | #define R_H8_DIR24R8_X (R_H8_DIR24A8_X + 1) | |
149 | HOWTO (R_H8_DIR24R8, /* type */ | |
150 | 0, /* rightshift */ | |
151 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
152 | 24, /* bitsize */ | |
153 | false, /* pc_relative */ | |
154 | 0, /* bitpos */ | |
155 | complain_overflow_bitfield, /* complain_on_overflow */ | |
a00c9dbc | 156 | special, /* special_function */ |
e01b0e69 JR |
157 | "R_H8_DIR24R8", /* name */ |
158 | true, /* partial_inplace */ | |
159 | 0xff000000, /* src_mask */ | |
160 | 0x00ffffff, /* dst_mask */ | |
161 | false), /* pcrel_offset */ | |
162 | #define R_H8_DIR32A16_X (R_H8_DIR24R8_X + 1) | |
163 | HOWTO (R_H8_DIR32A16, /* type */ | |
164 | 0, /* rightshift */ | |
165 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
166 | 32, /* bitsize */ | |
167 | false, /* pc_relative */ | |
168 | 0, /* bitpos */ | |
169 | complain_overflow_dont, /* complain_on_overflow */ | |
a00c9dbc | 170 | special, /* special_function */ |
e01b0e69 JR |
171 | "R_H8_DIR32", /* name */ |
172 | false, /* partial_inplace */ | |
173 | 0, /* src_mask */ | |
174 | 0xffffffff, /* dst_mask */ | |
175 | false), /* pcrel_offset */ | |
f2352488 JL |
176 | #define R_H8_PCREL16_X (R_H8_DIR32A16_X + 1) |
177 | HOWTO (R_H8_PCREL16, /* type */ | |
178 | 0, /* rightshift */ | |
179 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
180 | 16, /* bitsize */ | |
181 | true, /* pc_relative */ | |
182 | 0, /* bitpos */ | |
183 | complain_overflow_signed, /* complain_on_overflow */ | |
a00c9dbc | 184 | special, /* special_function */ |
f2352488 JL |
185 | "R_H8_PCREL16", /* name */ |
186 | false, /* partial_inplace */ | |
187 | 0xffff, /* src_mask */ | |
188 | 0xffff, /* dst_mask */ | |
189 | true), /* pcrel_offset */ | |
190 | #define R_H8_PCREL8_X (R_H8_PCREL16_X + 1) | |
191 | HOWTO (R_H8_PCREL8, /* type */ | |
192 | 0, /* rightshift */ | |
193 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
194 | 8, /* bitsize */ | |
195 | true, /* pc_relative */ | |
196 | 0, /* bitpos */ | |
197 | complain_overflow_signed, /* complain_on_overflow */ | |
a00c9dbc | 198 | special, /* special_function */ |
f2352488 JL |
199 | "R_H8_PCREL8", /* name */ |
200 | false, /* partial_inplace */ | |
201 | 0xff, /* src_mask */ | |
202 | 0xff, /* dst_mask */ | |
203 | true), /* pcrel_offset */ | |
e01b0e69 JR |
204 | }; |
205 | ||
206 | /* This structure is used to map BFD reloc codes to H8 ELF relocs. */ | |
207 | ||
208 | struct elf_reloc_map | |
209 | { | |
210 | bfd_reloc_code_real_type bfd_reloc_val; | |
211 | unsigned char howto_index; | |
212 | }; | |
213 | ||
214 | /* An array mapping BFD reloc codes to SH ELF relocs. */ | |
215 | ||
216 | static const struct elf_reloc_map h8_reloc_map[] = | |
217 | { | |
218 | { BFD_RELOC_NONE, R_H8_NONE_X }, | |
219 | { BFD_RELOC_32, R_H8_DIR32_X }, | |
220 | { BFD_RELOC_16, R_H8_DIR16_X }, | |
221 | { BFD_RELOC_8, R_H8_DIR8_X }, | |
222 | { BFD_RELOC_H8_DIR16A8, R_H8_DIR16A8_X }, | |
223 | { BFD_RELOC_H8_DIR16R8, R_H8_DIR16R8_X }, | |
224 | { BFD_RELOC_H8_DIR24A8, R_H8_DIR24A8_X }, | |
225 | { BFD_RELOC_H8_DIR24R8, R_H8_DIR24R8_X }, | |
226 | { BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X }, | |
f2352488 JL |
227 | { BFD_RELOC_16_PCREL, R_H8_PCREL16_X }, |
228 | { BFD_RELOC_8_PCREL, R_H8_PCREL8_X }, | |
e01b0e69 JR |
229 | }; |
230 | ||
0a83638b | 231 | |
e01b0e69 JR |
232 | static reloc_howto_type * |
233 | elf32_h8_reloc_type_lookup (abfd, code) | |
234 | bfd *abfd ATTRIBUTE_UNUSED; | |
235 | bfd_reloc_code_real_type code; | |
236 | { | |
237 | unsigned int i; | |
238 | ||
239 | for (i = 0; i < sizeof (h8_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
240 | { | |
241 | if (h8_reloc_map[i].bfd_reloc_val == code) | |
242 | return &h8_elf_howto_table[(int) h8_reloc_map[i].howto_index]; | |
243 | } | |
244 | return NULL; | |
245 | } | |
246 | ||
247 | static void | |
248 | elf32_h8_info_to_howto (abfd, bfd_reloc, elf_reloc) | |
249 | bfd *abfd ATTRIBUTE_UNUSED; | |
250 | arelent *bfd_reloc; | |
5e47149d | 251 | Elf32_Internal_Rela *elf_reloc; |
e01b0e69 JR |
252 | { |
253 | unsigned int r; | |
254 | unsigned int i; | |
255 | ||
256 | r = ELF32_R_TYPE (elf_reloc->r_info); | |
257 | for (i = 0; i < sizeof (h8_elf_howto_table) / sizeof (reloc_howto_type); i++) | |
258 | if (h8_elf_howto_table[i].type== r) | |
259 | { | |
260 | bfd_reloc->howto = &h8_elf_howto_table[i]; | |
261 | return; | |
262 | } | |
263 | abort (); | |
264 | } | |
265 | ||
266 | static void | |
267 | elf32_h8_info_to_howto_rel (abfd, bfd_reloc, elf_reloc) | |
268 | bfd *abfd ATTRIBUTE_UNUSED; | |
269 | arelent *bfd_reloc; | |
270 | Elf32_Internal_Rel *elf_reloc ATTRIBUTE_UNUSED; | |
271 | { | |
272 | unsigned int r; | |
273 | ||
274 | abort (); | |
275 | r = ELF32_R_TYPE (elf_reloc->r_info); | |
276 | bfd_reloc->howto = &h8_elf_howto_table[r]; | |
277 | } | |
278 | ||
a00c9dbc JL |
279 | /* Special handling for H8/300 relocs. |
280 | We only come here for pcrel stuff and return normally if not an -r link. | |
281 | When doing -r, we can't do any arithmetic for the pcrel stuff, because | |
282 | we support relaxing on the H8/300 series chips. */ | |
283 | static bfd_reloc_status_type | |
284 | special (abfd, reloc_entry, symbol, data, input_section, output_bfd, | |
285 | error_message) | |
286 | bfd *abfd ATTRIBUTE_UNUSED; | |
287 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
288 | asymbol *symbol ATTRIBUTE_UNUSED; | |
289 | PTR data ATTRIBUTE_UNUSED; | |
290 | asection *input_section ATTRIBUTE_UNUSED; | |
291 | bfd *output_bfd; | |
292 | char **error_message ATTRIBUTE_UNUSED; | |
293 | { | |
294 | if (output_bfd == (bfd *) NULL) | |
295 | return bfd_reloc_continue; | |
296 | ||
297 | /* Adjust the reloc address to that in the output section. */ | |
298 | reloc_entry->address += input_section->output_offset; | |
299 | return bfd_reloc_ok; | |
300 | } | |
5e47149d JL |
301 | |
302 | /* Perform a relocation as part of a final link. */ | |
303 | static bfd_reloc_status_type | |
304 | elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd, | |
305 | input_section, contents, offset, value, | |
306 | addend, info, sym_sec, is_local) | |
307 | unsigned long r_type; | |
308 | bfd *input_bfd; | |
309 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
310 | asection *input_section ATTRIBUTE_UNUSED; | |
311 | bfd_byte *contents; | |
312 | bfd_vma offset; | |
313 | bfd_vma value; | |
314 | bfd_vma addend; | |
315 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
316 | asection *sym_sec ATTRIBUTE_UNUSED; | |
317 | int is_local ATTRIBUTE_UNUSED; | |
318 | { | |
319 | bfd_byte *hit_data = contents + offset; | |
320 | ||
321 | switch (r_type) | |
322 | { | |
323 | ||
324 | case R_H8_NONE: | |
325 | return bfd_reloc_ok; | |
326 | ||
327 | case R_H8_DIR32: | |
328 | case R_H8_DIR32A16: | |
a00c9dbc | 329 | case R_H8_DIR24A8: |
5e47149d JL |
330 | value += addend; |
331 | bfd_put_32 (input_bfd, value, hit_data); | |
332 | return bfd_reloc_ok; | |
333 | ||
334 | case R_H8_DIR16: | |
335 | case R_H8_DIR16A8: | |
336 | case R_H8_DIR16R8: | |
337 | value += addend; | |
338 | bfd_put_16 (input_bfd, value, hit_data); | |
339 | return bfd_reloc_ok; | |
340 | ||
341 | /* AKA R_RELBYTE */ | |
342 | case R_H8_DIR8: | |
343 | value += addend; | |
344 | ||
5e47149d JL |
345 | bfd_put_8 (input_bfd, value, hit_data); |
346 | return bfd_reloc_ok; | |
347 | ||
5e47149d JL |
348 | case R_H8_DIR24R8: |
349 | value += addend; | |
350 | ||
a00c9dbc JL |
351 | /* HIT_DATA is the address for the first byte for the relocated |
352 | value. Subtract 1 so that we can manipulate the data in 32bit | |
353 | hunks. */ | |
354 | hit_data--; | |
355 | ||
356 | /* Clear out the top byte in value. */ | |
5e47149d | 357 | value &= 0xffffff; |
a00c9dbc JL |
358 | |
359 | /* Retrieve the type byte for value from the section contents. */ | |
5e47149d | 360 | value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000); |
a00c9dbc JL |
361 | |
362 | /* Now scribble it out in one 32bit hunk. */ | |
5e47149d JL |
363 | bfd_put_32 (input_bfd, value, hit_data); |
364 | return bfd_reloc_ok; | |
365 | ||
f2352488 JL |
366 | case R_H8_PCREL16: |
367 | value -= (input_section->output_section->vma | |
368 | + input_section->output_offset); | |
369 | value -= offset; | |
370 | value += addend; | |
371 | ||
a00c9dbc JL |
372 | /* The value is relative to the start of the instruction, |
373 | not the relocation offset. Subtract 2 to account for | |
374 | this minor issue. */ | |
375 | value -= 2; | |
376 | ||
f2352488 JL |
377 | bfd_put_16 (input_bfd, value, hit_data); |
378 | return bfd_reloc_ok; | |
379 | ||
380 | case R_H8_PCREL8: | |
381 | value -= (input_section->output_section->vma | |
382 | + input_section->output_offset); | |
383 | value -= offset; | |
384 | value += addend; | |
385 | ||
a00c9dbc JL |
386 | /* The value is relative to the start of the instruction, |
387 | not the relocation offset. Subtract 1 to account for | |
388 | this minor issue. */ | |
389 | value -= 1; | |
390 | ||
f2352488 JL |
391 | bfd_put_8 (input_bfd, value, hit_data); |
392 | return bfd_reloc_ok; | |
393 | ||
5e47149d JL |
394 | default: |
395 | return bfd_reloc_notsupported; | |
396 | } | |
397 | } | |
398 | \f | |
399 | /* Relocate an H8 ELF section. */ | |
400 | static boolean | |
401 | elf32_h8_relocate_section (output_bfd, info, input_bfd, input_section, | |
402 | contents, relocs, local_syms, local_sections) | |
403 | bfd *output_bfd; | |
404 | struct bfd_link_info *info; | |
405 | bfd *input_bfd; | |
406 | asection *input_section; | |
407 | bfd_byte *contents; | |
408 | Elf_Internal_Rela *relocs; | |
409 | Elf_Internal_Sym *local_syms; | |
410 | asection **local_sections; | |
411 | { | |
412 | Elf_Internal_Shdr *symtab_hdr; | |
413 | struct elf_link_hash_entry **sym_hashes; | |
414 | Elf_Internal_Rela *rel, *relend; | |
415 | ||
416 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
417 | sym_hashes = elf_sym_hashes (input_bfd); | |
418 | ||
419 | rel = relocs; | |
420 | relend = relocs + input_section->reloc_count; | |
421 | for (; rel < relend; rel++) | |
422 | { | |
423 | int r_type; | |
424 | unsigned long r_symndx; | |
425 | Elf_Internal_Sym *sym; | |
426 | asection *sec; | |
427 | struct elf_link_hash_entry *h; | |
428 | bfd_vma relocation; | |
429 | bfd_reloc_status_type r; | |
430 | ||
431 | r_symndx = ELF32_R_SYM (rel->r_info); | |
432 | r_type = ELF32_R_TYPE (rel->r_info); | |
433 | ||
434 | if (info->relocateable) | |
435 | { | |
436 | /* This is a relocateable link. We don't have to change | |
437 | anything, unless the reloc is against a section symbol, | |
438 | in which case we have to adjust according to where the | |
439 | section symbol winds up in the output section. */ | |
440 | if (r_symndx < symtab_hdr->sh_info) | |
441 | { | |
442 | sym = local_syms + r_symndx; | |
443 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
444 | { | |
445 | sec = local_sections[r_symndx]; | |
446 | rel->r_addend += sec->output_offset + sym->st_value; | |
447 | } | |
448 | } | |
449 | ||
450 | continue; | |
451 | } | |
452 | ||
453 | /* This is a final link. */ | |
454 | h = NULL; | |
455 | sym = NULL; | |
456 | sec = NULL; | |
457 | if (r_symndx < symtab_hdr->sh_info) | |
458 | { | |
459 | sym = local_syms + r_symndx; | |
460 | sec = local_sections[r_symndx]; | |
461 | relocation = (sec->output_section->vma | |
462 | + sec->output_offset | |
463 | + sym->st_value); | |
464 | } | |
465 | else | |
466 | { | |
467 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
468 | while (h->root.type == bfd_link_hash_indirect | |
469 | || h->root.type == bfd_link_hash_warning) | |
470 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
471 | if (h->root.type == bfd_link_hash_defined | |
472 | || h->root.type == bfd_link_hash_defweak) | |
473 | { | |
474 | sec = h->root.u.def.section; | |
475 | relocation = (h->root.u.def.value | |
476 | + sec->output_section->vma | |
477 | + sec->output_offset); | |
478 | } | |
479 | else if (h->root.type == bfd_link_hash_undefweak) | |
480 | relocation = 0; | |
481 | else | |
482 | { | |
483 | if (! ((*info->callbacks->undefined_symbol) | |
484 | (info, h->root.root.string, input_bfd, | |
485 | input_section, rel->r_offset, true))) | |
486 | return false; | |
487 | relocation = 0; | |
488 | } | |
489 | } | |
490 | ||
491 | r = elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd, | |
492 | input_section, | |
493 | contents, rel->r_offset, | |
494 | relocation, rel->r_addend, | |
495 | info, sec, h == NULL); | |
496 | ||
497 | if (r != bfd_reloc_ok) | |
498 | { | |
499 | const char *name; | |
500 | const char *msg = (const char *) 0; | |
501 | arelent bfd_reloc; | |
502 | reloc_howto_type *howto; | |
503 | ||
504 | elf32_h8_info_to_howto (input_bfd, &bfd_reloc, rel); | |
505 | howto = bfd_reloc.howto; | |
506 | ||
507 | if (h != NULL) | |
508 | name = h->root.root.string; | |
509 | else | |
510 | { | |
511 | name = (bfd_elf_string_from_elf_section | |
512 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
513 | if (name == NULL || *name == '\0') | |
514 | name = bfd_section_name (input_bfd, sec); | |
515 | } | |
516 | ||
517 | switch (r) | |
518 | { | |
519 | case bfd_reloc_overflow: | |
520 | if (! ((*info->callbacks->reloc_overflow) | |
521 | (info, name, howto->name, (bfd_vma) 0, | |
522 | input_bfd, input_section, rel->r_offset))) | |
523 | return false; | |
524 | break; | |
525 | ||
526 | case bfd_reloc_undefined: | |
527 | if (! ((*info->callbacks->undefined_symbol) | |
528 | (info, name, input_bfd, input_section, | |
529 | rel->r_offset, true))) | |
530 | return false; | |
531 | break; | |
532 | ||
533 | case bfd_reloc_outofrange: | |
534 | msg = _("internal error: out of range error"); | |
535 | goto common_error; | |
536 | ||
537 | case bfd_reloc_notsupported: | |
538 | msg = _("internal error: unsupported relocation error"); | |
539 | goto common_error; | |
540 | ||
541 | case bfd_reloc_dangerous: | |
542 | msg = _("internal error: dangerous error"); | |
543 | goto common_error; | |
544 | ||
545 | default: | |
546 | msg = _("internal error: unknown error"); | |
547 | /* fall through */ | |
548 | ||
549 | common_error: | |
550 | if (!((*info->callbacks->warning) | |
551 | (info, msg, name, input_bfd, input_section, | |
552 | rel->r_offset))) | |
553 | return false; | |
554 | break; | |
555 | } | |
556 | } | |
557 | } | |
558 | ||
559 | return true; | |
560 | } | |
561 | ||
0a83638b JL |
562 | /* Object files encode the specific H8 model they were compiled |
563 | for in the ELF flags field. | |
564 | ||
565 | Examine that field and return the proper BFD machine type for | |
566 | the object file. */ | |
567 | static int | |
568 | elf32_h8_mach (flags) | |
569 | flagword flags; | |
570 | { | |
571 | switch (flags & EF_H8_MACH) | |
572 | { | |
573 | case E_H8_MACH_H8300: | |
574 | default: | |
575 | return bfd_mach_h8300; | |
576 | ||
577 | case E_H8_MACH_H8300H: | |
578 | return bfd_mach_h8300h; | |
579 | ||
580 | case E_H8_MACH_H8300S: | |
581 | return bfd_mach_h8300s; | |
582 | } | |
583 | } | |
584 | ||
585 | /* The final processing done just before writing out a H8 ELF object | |
586 | file. We use this opportunity to encode the BFD machine type | |
587 | into the flags field in the object file. */ | |
588 | ||
589 | void | |
590 | elf32_h8_final_write_processing (abfd, linker) | |
591 | bfd *abfd; | |
592 | boolean linker ATTRIBUTE_UNUSED; | |
593 | { | |
594 | unsigned long val; | |
595 | ||
596 | switch (bfd_get_mach (abfd)) | |
597 | { | |
598 | default: | |
599 | case bfd_mach_h8300: | |
600 | val = E_H8_MACH_H8300; | |
601 | break; | |
602 | ||
603 | case bfd_mach_h8300h: | |
604 | val = E_H8_MACH_H8300H; | |
605 | break; | |
606 | ||
607 | case bfd_mach_h8300s: | |
608 | val = E_H8_MACH_H8300S; | |
609 | break; | |
610 | } | |
611 | ||
612 | elf_elfheader (abfd)->e_flags &= ~ (EF_H8_MACH); | |
613 | elf_elfheader (abfd)->e_flags |= val; | |
614 | } | |
615 | ||
616 | /* Return nonzero if ABFD represents a valid H8 ELF object file; also | |
617 | record the encoded machine type found in the ELF flags. */ | |
618 | ||
619 | boolean | |
620 | elf32_h8_object_p (abfd) | |
621 | bfd *abfd; | |
622 | { | |
623 | bfd_default_set_arch_mach (abfd, bfd_arch_h8300, | |
624 | elf32_h8_mach (elf_elfheader (abfd)->e_flags)); | |
625 | return true; | |
626 | } | |
627 | ||
628 | /* Merge backend specific data from an object file to the output | |
629 | object file when linking. The only data we need to copy at this | |
630 | time is the architecture/machine information. */ | |
631 | ||
632 | boolean | |
633 | elf32_h8_merge_private_bfd_data (ibfd, obfd) | |
634 | bfd *ibfd; | |
635 | bfd *obfd; | |
636 | { | |
637 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
638 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
639 | return true; | |
640 | ||
641 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
642 | && bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
643 | { | |
644 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
645 | bfd_get_mach (ibfd))) | |
646 | return false; | |
647 | } | |
648 | ||
649 | return true; | |
650 | } | |
651 | ||
652 | ||
e01b0e69 JR |
653 | #define TARGET_BIG_SYM bfd_elf32_h8300_vec |
654 | #define TARGET_BIG_NAME "elf32-h8300" | |
655 | #define ELF_ARCH bfd_arch_h8300 | |
656 | #define ELF_MACHINE_CODE EM_H8_300 | |
657 | #define ELF_MAXPAGESIZE 0x1 | |
658 | #define bfd_elf32_bfd_reloc_type_lookup elf32_h8_reloc_type_lookup | |
659 | #define elf_info_to_howto elf32_h8_info_to_howto | |
660 | #define elf_info_to_howto_rel elf32_h8_info_to_howto_rel | |
661 | ||
0a83638b JL |
662 | /* So we can set/examine bits in e_flags to get the specific |
663 | H8 architecture in use. */ | |
664 | #define elf_backend_final_write_processing \ | |
665 | elf32_h8_final_write_processing | |
666 | #define elf_backend_object_p \ | |
667 | elf32_h8_object_p | |
668 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
669 | elf32_h8_merge_private_bfd_data | |
670 | ||
e01b0e69 JR |
671 | /* ??? when elf_backend_relocate_section is not defined, elf32-target.h |
672 | defaults to using _bfd_generic_link_hash_table_create, but | |
673 | elflink.h:bfd_elf32_size_dynamic_sections uses | |
674 | dynobj = elf_hash_table (info)->dynobj; | |
675 | and thus requires an elf hash table. */ | |
676 | #define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create | |
677 | ||
5e47149d JL |
678 | /* Use an H8 specific linker, not the ELF generic linker. */ |
679 | #define elf_backend_relocate_section elf32_h8_relocate_section | |
680 | ||
e01b0e69 | 681 | #include "elf32-target.h" |