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