Commit | Line | Data |
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e01b0e69 | 1 | /* Generic support for 32-bit ELF |
dc810e39 | 2 | Copyright 1993, 1995, 1998, 1999, 2001 Free Software Foundation, Inc. |
e01b0e69 JR |
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 *)); | |
dc810e39 | 32 | static unsigned long elf32_h8_mach |
5e47149d | 33 | PARAMS ((flagword)); |
dc810e39 AM |
34 | static void elf32_h8_final_write_processing |
35 | PARAMS ((bfd *, boolean)); | |
36 | static boolean elf32_h8_object_p | |
37 | PARAMS ((bfd *)); | |
38 | static boolean elf32_h8_merge_private_bfd_data | |
39 | PARAMS ((bfd *, bfd *)); | |
40 | static boolean elf32_h8_relax_section | |
41 | PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *)); | |
42 | static boolean elf32_h8_relax_delete_bytes | |
43 | PARAMS ((bfd *, asection *, bfd_vma, int)); | |
44 | static boolean elf32_h8_symbol_address_p | |
9ad5cbcf | 45 | PARAMS ((bfd *, asection *, bfd_vma)); |
dc810e39 AM |
46 | static bfd_byte *elf32_h8_get_relocated_section_contents |
47 | PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, | |
48 | bfd_byte *, boolean, asymbol **)); | |
5e47149d JL |
49 | static bfd_reloc_status_type elf32_h8_final_link_relocate |
50 | PARAMS ((unsigned long, bfd *, bfd *, asection *, | |
51 | bfd_byte *, bfd_vma, bfd_vma, bfd_vma, | |
52 | struct bfd_link_info *, asection *, int)); | |
53 | static boolean elf32_h8_relocate_section | |
54 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, | |
55 | bfd_byte *, Elf_Internal_Rela *, | |
56 | Elf_Internal_Sym *, asection **)); | |
dc810e39 | 57 | static bfd_reloc_status_type special |
a00c9dbc | 58 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
e01b0e69 JR |
59 | |
60 | /* This does not include any relocation information, but should be | |
61 | good enough for GDB or objdump to read the file. */ | |
62 | ||
63 | static reloc_howto_type h8_elf_howto_table[] = | |
64 | { | |
65 | #define R_H8_NONE_X 0 | |
66 | HOWTO (R_H8_NONE, /* type */ | |
67 | 0, /* rightshift */ | |
68 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
69 | 0, /* bitsize */ | |
70 | false, /* pc_relative */ | |
71 | 0, /* bitpos */ | |
72 | complain_overflow_dont, /* complain_on_overflow */ | |
a00c9dbc | 73 | special, /* special_function */ |
e01b0e69 JR |
74 | "R_H8_NONE", /* name */ |
75 | false, /* partial_inplace */ | |
76 | 0, /* src_mask */ | |
77 | 0, /* dst_mask */ | |
78 | false), /* pcrel_offset */ | |
79 | #define R_H8_DIR32_X (R_H8_NONE_X + 1) | |
80 | HOWTO (R_H8_DIR32, /* type */ | |
81 | 0, /* rightshift */ | |
82 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
83 | 32, /* bitsize */ | |
84 | false, /* pc_relative */ | |
85 | 0, /* bitpos */ | |
86 | complain_overflow_dont, /* complain_on_overflow */ | |
a00c9dbc | 87 | special, /* special_function */ |
e01b0e69 JR |
88 | "R_H8_DIR32", /* name */ |
89 | false, /* partial_inplace */ | |
90 | 0, /* src_mask */ | |
91 | 0xffffffff, /* dst_mask */ | |
92 | false), /* pcrel_offset */ | |
93 | #define R_H8_DIR16_X (R_H8_DIR32_X + 1) | |
94 | HOWTO (R_H8_DIR16, /* type */ | |
95 | 0, /* rightshift */ | |
96 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
97 | 16, /* bitsize */ | |
98 | false, /* pc_relative */ | |
99 | 0, /* bitpos */ | |
100 | complain_overflow_dont, /* complain_on_overflow */ | |
a00c9dbc | 101 | special, /* special_function */ |
e01b0e69 JR |
102 | "R_H8_DIR16", /* name */ |
103 | false, /* partial_inplace */ | |
104 | 0, /* src_mask */ | |
105 | 0x0000ffff, /* dst_mask */ | |
106 | false), /* pcrel_offset */ | |
107 | #define R_H8_DIR8_X (R_H8_DIR16_X + 1) | |
108 | HOWTO (R_H8_DIR8, /* type */ | |
109 | 0, /* rightshift */ | |
110 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
111 | 8, /* bitsize */ | |
112 | false, /* pc_relative */ | |
113 | 0, /* bitpos */ | |
114 | complain_overflow_dont, /* complain_on_overflow */ | |
a00c9dbc | 115 | special, /* special_function */ |
e01b0e69 JR |
116 | "R_H8_DIR16", /* name */ |
117 | false, /* partial_inplace */ | |
118 | 0, /* src_mask */ | |
119 | 0x000000ff, /* dst_mask */ | |
120 | false), /* pcrel_offset */ | |
121 | #define R_H8_DIR16A8_X (R_H8_DIR8_X + 1) | |
122 | HOWTO (R_H8_DIR16A8, /* type */ | |
123 | 0, /* rightshift */ | |
124 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
125 | 16, /* bitsize */ | |
126 | false, /* pc_relative */ | |
127 | 0, /* bitpos */ | |
128 | complain_overflow_bitfield, /* complain_on_overflow */ | |
a00c9dbc | 129 | special, /* special_function */ |
e01b0e69 JR |
130 | "R_H8_DIR16A8", /* name */ |
131 | false, /* partial_inplace */ | |
132 | 0, /* src_mask */ | |
133 | 0x0000ffff, /* dst_mask */ | |
134 | false), /* pcrel_offset */ | |
135 | #define R_H8_DIR16R8_X (R_H8_DIR16A8_X + 1) | |
136 | HOWTO (R_H8_DIR16R8, /* type */ | |
137 | 0, /* rightshift */ | |
138 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
139 | 16, /* bitsize */ | |
140 | false, /* pc_relative */ | |
141 | 0, /* bitpos */ | |
142 | complain_overflow_bitfield, /* complain_on_overflow */ | |
a00c9dbc | 143 | special, /* special_function */ |
e01b0e69 JR |
144 | "R_H8_DIR16R8", /* name */ |
145 | false, /* partial_inplace */ | |
146 | 0, /* src_mask */ | |
147 | 0x0000ffff, /* dst_mask */ | |
148 | false), /* pcrel_offset */ | |
149 | #define R_H8_DIR24A8_X (R_H8_DIR16R8_X + 1) | |
150 | HOWTO (R_H8_DIR24A8, /* type */ | |
151 | 0, /* rightshift */ | |
152 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
153 | 24, /* bitsize */ | |
154 | false, /* pc_relative */ | |
155 | 0, /* bitpos */ | |
156 | complain_overflow_bitfield, /* complain_on_overflow */ | |
a00c9dbc | 157 | special, /* special_function */ |
e01b0e69 JR |
158 | "R_H8_DIR24A8", /* name */ |
159 | true, /* partial_inplace */ | |
160 | 0xff000000, /* src_mask */ | |
161 | 0x00ffffff, /* dst_mask */ | |
162 | false), /* pcrel_offset */ | |
163 | #define R_H8_DIR24R8_X (R_H8_DIR24A8_X + 1) | |
164 | HOWTO (R_H8_DIR24R8, /* type */ | |
165 | 0, /* rightshift */ | |
166 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
167 | 24, /* bitsize */ | |
168 | false, /* pc_relative */ | |
169 | 0, /* bitpos */ | |
170 | complain_overflow_bitfield, /* complain_on_overflow */ | |
a00c9dbc | 171 | special, /* special_function */ |
e01b0e69 JR |
172 | "R_H8_DIR24R8", /* name */ |
173 | true, /* partial_inplace */ | |
174 | 0xff000000, /* src_mask */ | |
175 | 0x00ffffff, /* dst_mask */ | |
176 | false), /* pcrel_offset */ | |
177 | #define R_H8_DIR32A16_X (R_H8_DIR24R8_X + 1) | |
178 | HOWTO (R_H8_DIR32A16, /* type */ | |
179 | 0, /* rightshift */ | |
180 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
181 | 32, /* bitsize */ | |
182 | false, /* pc_relative */ | |
183 | 0, /* bitpos */ | |
184 | complain_overflow_dont, /* complain_on_overflow */ | |
a00c9dbc | 185 | special, /* special_function */ |
e01b0e69 JR |
186 | "R_H8_DIR32", /* name */ |
187 | false, /* partial_inplace */ | |
188 | 0, /* src_mask */ | |
189 | 0xffffffff, /* dst_mask */ | |
190 | false), /* pcrel_offset */ | |
f2352488 JL |
191 | #define R_H8_PCREL16_X (R_H8_DIR32A16_X + 1) |
192 | HOWTO (R_H8_PCREL16, /* type */ | |
193 | 0, /* rightshift */ | |
194 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
195 | 16, /* bitsize */ | |
196 | true, /* pc_relative */ | |
197 | 0, /* bitpos */ | |
198 | complain_overflow_signed, /* complain_on_overflow */ | |
a00c9dbc | 199 | special, /* special_function */ |
f2352488 JL |
200 | "R_H8_PCREL16", /* name */ |
201 | false, /* partial_inplace */ | |
202 | 0xffff, /* src_mask */ | |
203 | 0xffff, /* dst_mask */ | |
204 | true), /* pcrel_offset */ | |
205 | #define R_H8_PCREL8_X (R_H8_PCREL16_X + 1) | |
206 | HOWTO (R_H8_PCREL8, /* type */ | |
207 | 0, /* rightshift */ | |
208 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
209 | 8, /* bitsize */ | |
210 | true, /* pc_relative */ | |
211 | 0, /* bitpos */ | |
212 | complain_overflow_signed, /* complain_on_overflow */ | |
a00c9dbc | 213 | special, /* special_function */ |
f2352488 JL |
214 | "R_H8_PCREL8", /* name */ |
215 | false, /* partial_inplace */ | |
216 | 0xff, /* src_mask */ | |
217 | 0xff, /* dst_mask */ | |
218 | true), /* pcrel_offset */ | |
e01b0e69 JR |
219 | }; |
220 | ||
221 | /* This structure is used to map BFD reloc codes to H8 ELF relocs. */ | |
222 | ||
223 | struct elf_reloc_map | |
224 | { | |
225 | bfd_reloc_code_real_type bfd_reloc_val; | |
226 | unsigned char howto_index; | |
227 | }; | |
228 | ||
229 | /* An array mapping BFD reloc codes to SH ELF relocs. */ | |
230 | ||
231 | static const struct elf_reloc_map h8_reloc_map[] = | |
232 | { | |
233 | { BFD_RELOC_NONE, R_H8_NONE_X }, | |
234 | { BFD_RELOC_32, R_H8_DIR32_X }, | |
235 | { BFD_RELOC_16, R_H8_DIR16_X }, | |
236 | { BFD_RELOC_8, R_H8_DIR8_X }, | |
237 | { BFD_RELOC_H8_DIR16A8, R_H8_DIR16A8_X }, | |
238 | { BFD_RELOC_H8_DIR16R8, R_H8_DIR16R8_X }, | |
239 | { BFD_RELOC_H8_DIR24A8, R_H8_DIR24A8_X }, | |
240 | { BFD_RELOC_H8_DIR24R8, R_H8_DIR24R8_X }, | |
241 | { BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X }, | |
f2352488 JL |
242 | { BFD_RELOC_16_PCREL, R_H8_PCREL16_X }, |
243 | { BFD_RELOC_8_PCREL, R_H8_PCREL8_X }, | |
e01b0e69 JR |
244 | }; |
245 | ||
0a83638b | 246 | |
e01b0e69 JR |
247 | static reloc_howto_type * |
248 | elf32_h8_reloc_type_lookup (abfd, code) | |
249 | bfd *abfd ATTRIBUTE_UNUSED; | |
250 | bfd_reloc_code_real_type code; | |
251 | { | |
252 | unsigned int i; | |
253 | ||
254 | for (i = 0; i < sizeof (h8_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
255 | { | |
256 | if (h8_reloc_map[i].bfd_reloc_val == code) | |
257 | return &h8_elf_howto_table[(int) h8_reloc_map[i].howto_index]; | |
258 | } | |
259 | return NULL; | |
260 | } | |
261 | ||
262 | static void | |
263 | elf32_h8_info_to_howto (abfd, bfd_reloc, elf_reloc) | |
264 | bfd *abfd ATTRIBUTE_UNUSED; | |
265 | arelent *bfd_reloc; | |
5e47149d | 266 | Elf32_Internal_Rela *elf_reloc; |
e01b0e69 JR |
267 | { |
268 | unsigned int r; | |
269 | unsigned int i; | |
270 | ||
271 | r = ELF32_R_TYPE (elf_reloc->r_info); | |
272 | for (i = 0; i < sizeof (h8_elf_howto_table) / sizeof (reloc_howto_type); i++) | |
273 | if (h8_elf_howto_table[i].type== r) | |
274 | { | |
275 | bfd_reloc->howto = &h8_elf_howto_table[i]; | |
276 | return; | |
277 | } | |
278 | abort (); | |
279 | } | |
280 | ||
281 | static void | |
282 | elf32_h8_info_to_howto_rel (abfd, bfd_reloc, elf_reloc) | |
283 | bfd *abfd ATTRIBUTE_UNUSED; | |
284 | arelent *bfd_reloc; | |
285 | Elf32_Internal_Rel *elf_reloc ATTRIBUTE_UNUSED; | |
286 | { | |
287 | unsigned int r; | |
288 | ||
289 | abort (); | |
290 | r = ELF32_R_TYPE (elf_reloc->r_info); | |
291 | bfd_reloc->howto = &h8_elf_howto_table[r]; | |
292 | } | |
293 | ||
a00c9dbc JL |
294 | /* Special handling for H8/300 relocs. |
295 | We only come here for pcrel stuff and return normally if not an -r link. | |
296 | When doing -r, we can't do any arithmetic for the pcrel stuff, because | |
297 | we support relaxing on the H8/300 series chips. */ | |
298 | static bfd_reloc_status_type | |
299 | special (abfd, reloc_entry, symbol, data, input_section, output_bfd, | |
300 | error_message) | |
301 | bfd *abfd ATTRIBUTE_UNUSED; | |
302 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
303 | asymbol *symbol ATTRIBUTE_UNUSED; | |
304 | PTR data ATTRIBUTE_UNUSED; | |
305 | asection *input_section ATTRIBUTE_UNUSED; | |
306 | bfd *output_bfd; | |
307 | char **error_message ATTRIBUTE_UNUSED; | |
308 | { | |
309 | if (output_bfd == (bfd *) NULL) | |
310 | return bfd_reloc_continue; | |
311 | ||
312 | /* Adjust the reloc address to that in the output section. */ | |
313 | reloc_entry->address += input_section->output_offset; | |
314 | return bfd_reloc_ok; | |
315 | } | |
5e47149d JL |
316 | |
317 | /* Perform a relocation as part of a final link. */ | |
318 | static bfd_reloc_status_type | |
319 | elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd, | |
320 | input_section, contents, offset, value, | |
321 | addend, info, sym_sec, is_local) | |
322 | unsigned long r_type; | |
323 | bfd *input_bfd; | |
324 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
325 | asection *input_section ATTRIBUTE_UNUSED; | |
326 | bfd_byte *contents; | |
327 | bfd_vma offset; | |
328 | bfd_vma value; | |
329 | bfd_vma addend; | |
330 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
331 | asection *sym_sec ATTRIBUTE_UNUSED; | |
332 | int is_local ATTRIBUTE_UNUSED; | |
333 | { | |
334 | bfd_byte *hit_data = contents + offset; | |
335 | ||
336 | switch (r_type) | |
337 | { | |
338 | ||
339 | case R_H8_NONE: | |
340 | return bfd_reloc_ok; | |
341 | ||
342 | case R_H8_DIR32: | |
343 | case R_H8_DIR32A16: | |
a00c9dbc | 344 | case R_H8_DIR24A8: |
5e47149d JL |
345 | value += addend; |
346 | bfd_put_32 (input_bfd, value, hit_data); | |
347 | return bfd_reloc_ok; | |
348 | ||
349 | case R_H8_DIR16: | |
350 | case R_H8_DIR16A8: | |
351 | case R_H8_DIR16R8: | |
352 | value += addend; | |
353 | bfd_put_16 (input_bfd, value, hit_data); | |
354 | return bfd_reloc_ok; | |
355 | ||
356 | /* AKA R_RELBYTE */ | |
357 | case R_H8_DIR8: | |
358 | value += addend; | |
359 | ||
5e47149d JL |
360 | bfd_put_8 (input_bfd, value, hit_data); |
361 | return bfd_reloc_ok; | |
362 | ||
5e47149d JL |
363 | case R_H8_DIR24R8: |
364 | value += addend; | |
365 | ||
a00c9dbc JL |
366 | /* HIT_DATA is the address for the first byte for the relocated |
367 | value. Subtract 1 so that we can manipulate the data in 32bit | |
368 | hunks. */ | |
369 | hit_data--; | |
370 | ||
371 | /* Clear out the top byte in value. */ | |
5e47149d | 372 | value &= 0xffffff; |
a00c9dbc JL |
373 | |
374 | /* Retrieve the type byte for value from the section contents. */ | |
5e47149d | 375 | value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000); |
a00c9dbc JL |
376 | |
377 | /* Now scribble it out in one 32bit hunk. */ | |
5e47149d JL |
378 | bfd_put_32 (input_bfd, value, hit_data); |
379 | return bfd_reloc_ok; | |
380 | ||
f2352488 JL |
381 | case R_H8_PCREL16: |
382 | value -= (input_section->output_section->vma | |
383 | + input_section->output_offset); | |
384 | value -= offset; | |
385 | value += addend; | |
386 | ||
a00c9dbc JL |
387 | /* The value is relative to the start of the instruction, |
388 | not the relocation offset. Subtract 2 to account for | |
389 | this minor issue. */ | |
390 | value -= 2; | |
391 | ||
f2352488 JL |
392 | bfd_put_16 (input_bfd, value, hit_data); |
393 | return bfd_reloc_ok; | |
394 | ||
395 | case R_H8_PCREL8: | |
396 | value -= (input_section->output_section->vma | |
397 | + input_section->output_offset); | |
398 | value -= offset; | |
399 | value += addend; | |
400 | ||
a00c9dbc JL |
401 | /* The value is relative to the start of the instruction, |
402 | not the relocation offset. Subtract 1 to account for | |
403 | this minor issue. */ | |
404 | value -= 1; | |
405 | ||
f2352488 JL |
406 | bfd_put_8 (input_bfd, value, hit_data); |
407 | return bfd_reloc_ok; | |
408 | ||
5e47149d JL |
409 | default: |
410 | return bfd_reloc_notsupported; | |
411 | } | |
412 | } | |
413 | \f | |
414 | /* Relocate an H8 ELF section. */ | |
415 | static boolean | |
416 | elf32_h8_relocate_section (output_bfd, info, input_bfd, input_section, | |
417 | contents, relocs, local_syms, local_sections) | |
418 | bfd *output_bfd; | |
419 | struct bfd_link_info *info; | |
420 | bfd *input_bfd; | |
421 | asection *input_section; | |
422 | bfd_byte *contents; | |
423 | Elf_Internal_Rela *relocs; | |
424 | Elf_Internal_Sym *local_syms; | |
425 | asection **local_sections; | |
426 | { | |
427 | Elf_Internal_Shdr *symtab_hdr; | |
428 | struct elf_link_hash_entry **sym_hashes; | |
429 | Elf_Internal_Rela *rel, *relend; | |
430 | ||
431 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
432 | sym_hashes = elf_sym_hashes (input_bfd); | |
433 | ||
434 | rel = relocs; | |
435 | relend = relocs + input_section->reloc_count; | |
436 | for (; rel < relend; rel++) | |
437 | { | |
dc810e39 | 438 | unsigned int r_type; |
5e47149d JL |
439 | unsigned long r_symndx; |
440 | Elf_Internal_Sym *sym; | |
441 | asection *sec; | |
442 | struct elf_link_hash_entry *h; | |
443 | bfd_vma relocation; | |
444 | bfd_reloc_status_type r; | |
445 | ||
446 | r_symndx = ELF32_R_SYM (rel->r_info); | |
447 | r_type = ELF32_R_TYPE (rel->r_info); | |
448 | ||
449 | if (info->relocateable) | |
450 | { | |
451 | /* This is a relocateable link. We don't have to change | |
452 | anything, unless the reloc is against a section symbol, | |
453 | in which case we have to adjust according to where the | |
454 | section symbol winds up in the output section. */ | |
455 | if (r_symndx < symtab_hdr->sh_info) | |
456 | { | |
457 | sym = local_syms + r_symndx; | |
458 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
459 | { | |
460 | sec = local_sections[r_symndx]; | |
461 | rel->r_addend += sec->output_offset + sym->st_value; | |
462 | } | |
463 | } | |
464 | ||
465 | continue; | |
466 | } | |
467 | ||
468 | /* This is a final link. */ | |
469 | h = NULL; | |
470 | sym = NULL; | |
471 | sec = NULL; | |
472 | if (r_symndx < symtab_hdr->sh_info) | |
473 | { | |
474 | sym = local_syms + r_symndx; | |
475 | sec = local_sections[r_symndx]; | |
f8df10f4 | 476 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel); |
5e47149d JL |
477 | } |
478 | else | |
479 | { | |
480 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
481 | while (h->root.type == bfd_link_hash_indirect | |
482 | || h->root.type == bfd_link_hash_warning) | |
483 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
484 | if (h->root.type == bfd_link_hash_defined | |
485 | || h->root.type == bfd_link_hash_defweak) | |
486 | { | |
487 | sec = h->root.u.def.section; | |
488 | relocation = (h->root.u.def.value | |
489 | + sec->output_section->vma | |
490 | + sec->output_offset); | |
491 | } | |
492 | else if (h->root.type == bfd_link_hash_undefweak) | |
493 | relocation = 0; | |
494 | else | |
495 | { | |
496 | if (! ((*info->callbacks->undefined_symbol) | |
497 | (info, h->root.root.string, input_bfd, | |
498 | input_section, rel->r_offset, true))) | |
499 | return false; | |
500 | relocation = 0; | |
501 | } | |
502 | } | |
503 | ||
504 | r = elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd, | |
505 | input_section, | |
506 | contents, rel->r_offset, | |
507 | relocation, rel->r_addend, | |
508 | info, sec, h == NULL); | |
509 | ||
510 | if (r != bfd_reloc_ok) | |
511 | { | |
512 | const char *name; | |
513 | const char *msg = (const char *) 0; | |
514 | arelent bfd_reloc; | |
515 | reloc_howto_type *howto; | |
516 | ||
517 | elf32_h8_info_to_howto (input_bfd, &bfd_reloc, rel); | |
518 | howto = bfd_reloc.howto; | |
dc810e39 | 519 | |
5e47149d JL |
520 | if (h != NULL) |
521 | name = h->root.root.string; | |
522 | else | |
523 | { | |
524 | name = (bfd_elf_string_from_elf_section | |
525 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
526 | if (name == NULL || *name == '\0') | |
527 | name = bfd_section_name (input_bfd, sec); | |
528 | } | |
529 | ||
530 | switch (r) | |
531 | { | |
532 | case bfd_reloc_overflow: | |
533 | if (! ((*info->callbacks->reloc_overflow) | |
534 | (info, name, howto->name, (bfd_vma) 0, | |
535 | input_bfd, input_section, rel->r_offset))) | |
536 | return false; | |
537 | break; | |
538 | ||
539 | case bfd_reloc_undefined: | |
540 | if (! ((*info->callbacks->undefined_symbol) | |
541 | (info, name, input_bfd, input_section, | |
542 | rel->r_offset, true))) | |
543 | return false; | |
544 | break; | |
545 | ||
546 | case bfd_reloc_outofrange: | |
547 | msg = _("internal error: out of range error"); | |
548 | goto common_error; | |
549 | ||
550 | case bfd_reloc_notsupported: | |
551 | msg = _("internal error: unsupported relocation error"); | |
552 | goto common_error; | |
553 | ||
554 | case bfd_reloc_dangerous: | |
555 | msg = _("internal error: dangerous error"); | |
556 | goto common_error; | |
557 | ||
558 | default: | |
559 | msg = _("internal error: unknown error"); | |
560 | /* fall through */ | |
561 | ||
562 | common_error: | |
563 | if (!((*info->callbacks->warning) | |
564 | (info, msg, name, input_bfd, input_section, | |
565 | rel->r_offset))) | |
566 | return false; | |
567 | break; | |
568 | } | |
569 | } | |
570 | } | |
571 | ||
572 | return true; | |
573 | } | |
574 | ||
0a83638b JL |
575 | /* Object files encode the specific H8 model they were compiled |
576 | for in the ELF flags field. | |
577 | ||
578 | Examine that field and return the proper BFD machine type for | |
579 | the object file. */ | |
dc810e39 | 580 | static unsigned long |
0a83638b JL |
581 | elf32_h8_mach (flags) |
582 | flagword flags; | |
583 | { | |
584 | switch (flags & EF_H8_MACH) | |
585 | { | |
586 | case E_H8_MACH_H8300: | |
587 | default: | |
588 | return bfd_mach_h8300; | |
589 | ||
590 | case E_H8_MACH_H8300H: | |
591 | return bfd_mach_h8300h; | |
592 | ||
593 | case E_H8_MACH_H8300S: | |
594 | return bfd_mach_h8300s; | |
595 | } | |
596 | } | |
597 | ||
598 | /* The final processing done just before writing out a H8 ELF object | |
599 | file. We use this opportunity to encode the BFD machine type | |
600 | into the flags field in the object file. */ | |
601 | ||
dc810e39 | 602 | static void |
0a83638b JL |
603 | elf32_h8_final_write_processing (abfd, linker) |
604 | bfd *abfd; | |
605 | boolean linker ATTRIBUTE_UNUSED; | |
606 | { | |
607 | unsigned long val; | |
608 | ||
609 | switch (bfd_get_mach (abfd)) | |
610 | { | |
611 | default: | |
612 | case bfd_mach_h8300: | |
613 | val = E_H8_MACH_H8300; | |
614 | break; | |
615 | ||
616 | case bfd_mach_h8300h: | |
617 | val = E_H8_MACH_H8300H; | |
618 | break; | |
619 | ||
620 | case bfd_mach_h8300s: | |
621 | val = E_H8_MACH_H8300S; | |
622 | break; | |
623 | } | |
624 | ||
625 | elf_elfheader (abfd)->e_flags &= ~ (EF_H8_MACH); | |
626 | elf_elfheader (abfd)->e_flags |= val; | |
627 | } | |
628 | ||
629 | /* Return nonzero if ABFD represents a valid H8 ELF object file; also | |
630 | record the encoded machine type found in the ELF flags. */ | |
631 | ||
dc810e39 | 632 | static boolean |
0a83638b JL |
633 | elf32_h8_object_p (abfd) |
634 | bfd *abfd; | |
635 | { | |
636 | bfd_default_set_arch_mach (abfd, bfd_arch_h8300, | |
637 | elf32_h8_mach (elf_elfheader (abfd)->e_flags)); | |
638 | return true; | |
639 | } | |
640 | ||
641 | /* Merge backend specific data from an object file to the output | |
642 | object file when linking. The only data we need to copy at this | |
643 | time is the architecture/machine information. */ | |
644 | ||
dc810e39 | 645 | static boolean |
0a83638b JL |
646 | elf32_h8_merge_private_bfd_data (ibfd, obfd) |
647 | bfd *ibfd; | |
648 | bfd *obfd; | |
649 | { | |
650 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
651 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
652 | return true; | |
653 | ||
654 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
655 | && bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
656 | { | |
657 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
658 | bfd_get_mach (ibfd))) | |
659 | return false; | |
660 | } | |
661 | ||
662 | return true; | |
663 | } | |
664 | ||
5907e628 JL |
665 | /* This function handles relaxing for the H8.. |
666 | ||
667 | There's a few relaxing opportunites available on the H8: | |
668 | ||
669 | jmp/jsr:24 -> bra/bsr:8 2 bytes | |
670 | The jmp may be completely eliminated if the previous insn is a | |
671 | conditional branch to the insn after the jump. In that case | |
672 | we invert the branch and delete the jump and save 4 bytes. | |
673 | ||
674 | bCC:16 -> bCC:8 2 bytes | |
675 | bsr:16 -> bsr:8 2 bytes | |
676 | ||
677 | mov.b:16 -> mov.b:8 2 bytes | |
678 | mov.b:24/32 -> mov.b:8 4 bytes | |
679 | ||
680 | mov.[bwl]:24/32 -> mov.[bwl]:16 2 bytes | |
dc810e39 | 681 | |
5907e628 JL |
682 | |
683 | */ | |
684 | ||
685 | static boolean | |
686 | elf32_h8_relax_section (abfd, sec, link_info, again) | |
687 | bfd *abfd; | |
688 | asection *sec; | |
689 | struct bfd_link_info *link_info; | |
690 | boolean *again; | |
691 | { | |
692 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 693 | Elf_Internal_Shdr *shndx_hdr; |
5907e628 JL |
694 | Elf_Internal_Rela *internal_relocs; |
695 | Elf_Internal_Rela *free_relocs = NULL; | |
696 | Elf_Internal_Rela *irel, *irelend; | |
697 | bfd_byte *contents = NULL; | |
698 | bfd_byte *free_contents = NULL; | |
699 | Elf32_External_Sym *extsyms = NULL; | |
700 | Elf32_External_Sym *free_extsyms = NULL; | |
9ad5cbcf | 701 | Elf_External_Sym_Shndx *shndx_buf = NULL; |
5907e628 JL |
702 | static asection *last_input_section = NULL; |
703 | static Elf_Internal_Rela *last_reloc = NULL; | |
704 | ||
705 | /* Assume nothing changes. */ | |
706 | *again = false; | |
707 | ||
708 | /* We don't have to do anything for a relocateable link, if | |
709 | this section does not have relocs, or if this is not a | |
710 | code section. */ | |
711 | if (link_info->relocateable | |
712 | || (sec->flags & SEC_RELOC) == 0 | |
713 | || sec->reloc_count == 0 | |
714 | || (sec->flags & SEC_CODE) == 0) | |
715 | return true; | |
716 | ||
717 | /* If this is the first time we have been called for this section, | |
718 | initialize the cooked size. */ | |
719 | if (sec->_cooked_size == 0) | |
720 | sec->_cooked_size = sec->_raw_size; | |
721 | ||
722 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
9ad5cbcf | 723 | shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; |
5907e628 JL |
724 | |
725 | /* Get a copy of the native relocations. */ | |
726 | internal_relocs = (_bfd_elf32_link_read_relocs | |
727 | (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, | |
728 | link_info->keep_memory)); | |
729 | if (internal_relocs == NULL) | |
730 | goto error_return; | |
731 | if (! link_info->keep_memory) | |
732 | free_relocs = internal_relocs; | |
733 | ||
734 | if (sec != last_input_section) | |
735 | last_reloc = NULL; | |
736 | ||
737 | last_input_section = sec; | |
738 | ||
739 | /* Walk through the relocs looking for relaxing opportunities. */ | |
740 | irelend = internal_relocs + sec->reloc_count; | |
741 | for (irel = internal_relocs; irel < irelend; irel++) | |
742 | { | |
743 | bfd_vma symval; | |
744 | ||
745 | /* Keep track of the previous reloc so that we can delete | |
746 | some long jumps created by the compiler. */ | |
747 | if (irel != internal_relocs) | |
748 | last_reloc = irel - 1; | |
749 | ||
750 | /* Get the section contents if we haven't done so already. */ | |
751 | if (contents == NULL) | |
752 | { | |
753 | /* Get cached copy if it exists. */ | |
754 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
755 | contents = elf_section_data (sec)->this_hdr.contents; | |
756 | else | |
757 | { | |
758 | /* Go get them off disk. */ | |
759 | contents = (bfd_byte *) bfd_malloc (sec->_raw_size); | |
760 | if (contents == NULL) | |
761 | goto error_return; | |
762 | free_contents = contents; | |
763 | ||
764 | if (! bfd_get_section_contents (abfd, sec, contents, | |
765 | (file_ptr) 0, sec->_raw_size)) | |
766 | goto error_return; | |
767 | } | |
768 | } | |
769 | ||
9ad5cbcf | 770 | /* Read this BFD's local symbols if we haven't done so already. */ |
5907e628 JL |
771 | if (extsyms == NULL) |
772 | { | |
773 | /* Get cached copy if it exists. */ | |
774 | if (symtab_hdr->contents != NULL) | |
775 | extsyms = (Elf32_External_Sym *) symtab_hdr->contents; | |
776 | else | |
777 | { | |
778 | /* Go get them off disk. */ | |
9ad5cbcf AM |
779 | bfd_size_type amt; |
780 | ||
781 | amt = symtab_hdr->sh_info * sizeof (Elf32_External_Sym); | |
782 | extsyms = (Elf32_External_Sym *) bfd_malloc (amt); | |
5907e628 JL |
783 | if (extsyms == NULL) |
784 | goto error_return; | |
785 | free_extsyms = extsyms; | |
786 | if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
9ad5cbcf | 787 | || bfd_bread ((PTR) extsyms, amt, abfd) != amt) |
5907e628 | 788 | goto error_return; |
9ad5cbcf AM |
789 | symtab_hdr->contents = (PTR) extsyms; |
790 | } | |
791 | ||
792 | if (shndx_hdr->sh_size != 0) | |
793 | { | |
794 | bfd_size_type amt; | |
795 | ||
796 | amt = symtab_hdr->sh_info * sizeof (Elf_External_Sym_Shndx); | |
797 | shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt); | |
798 | if (shndx_buf == NULL) | |
799 | goto error_return; | |
800 | if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0 | |
801 | || bfd_bread ((PTR) shndx_buf, amt, abfd) != amt) | |
802 | goto error_return; | |
803 | shndx_hdr->contents = (PTR) shndx_buf; | |
5907e628 JL |
804 | } |
805 | } | |
806 | ||
807 | /* Get the value of the symbol referred to by the reloc. */ | |
808 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
809 | { | |
9ad5cbcf AM |
810 | Elf32_External_Sym *esym; |
811 | Elf_External_Sym_Shndx *shndx; | |
5907e628 JL |
812 | Elf_Internal_Sym isym; |
813 | asection *sym_sec; | |
814 | ||
815 | /* A local symbol. */ | |
9ad5cbcf AM |
816 | esym = extsyms + ELF32_R_SYM (irel->r_info); |
817 | shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irel->r_info) : 0); | |
818 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym); | |
5907e628 JL |
819 | |
820 | sym_sec = bfd_section_from_elf_index (abfd, isym.st_shndx); | |
821 | symval = (isym.st_value | |
822 | + sym_sec->output_section->vma | |
823 | + sym_sec->output_offset); | |
824 | } | |
825 | else | |
826 | { | |
827 | unsigned long indx; | |
828 | struct elf_link_hash_entry *h; | |
829 | ||
830 | /* An external symbol. */ | |
831 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
832 | h = elf_sym_hashes (abfd)[indx]; | |
833 | BFD_ASSERT (h != NULL); | |
834 | if (h->root.type != bfd_link_hash_defined | |
835 | && h->root.type != bfd_link_hash_defweak) | |
836 | { | |
837 | /* This appears to be a reference to an undefined | |
838 | symbol. Just ignore it--it will be caught by the | |
839 | regular reloc processing. */ | |
840 | continue; | |
841 | } | |
842 | ||
843 | symval = (h->root.u.def.value | |
844 | + h->root.u.def.section->output_section->vma | |
845 | + h->root.u.def.section->output_offset); | |
846 | } | |
847 | ||
848 | /* For simplicity of coding, we are going to modify the section | |
849 | contents, the section relocs, and the BFD symbol table. We | |
850 | must tell the rest of the code not to free up this | |
851 | information. It would be possible to instead create a table | |
852 | of changes which have to be made, as is done in coff-mips.c; | |
853 | that would be more work, but would require less memory when | |
854 | the linker is run. */ | |
855 | switch (ELF32_R_TYPE (irel->r_info)) | |
856 | { | |
857 | /* Try to turn a 24 bit absolute branch/call into an 8 bit | |
858 | pc-relative branch/call. */ | |
859 | case R_H8_DIR24R8: | |
860 | { | |
861 | bfd_vma value = symval + irel->r_addend; | |
862 | bfd_vma dot, gap; | |
863 | ||
864 | /* Get the address of this instruction. */ | |
865 | dot = (sec->output_section->vma | |
866 | + sec->output_offset + irel->r_offset - 1); | |
867 | ||
868 | /* Compute the distance from this insn to the branch target. */ | |
869 | gap = value - dot; | |
870 | ||
871 | /* If the distance is within -126..+130 inclusive, then we can | |
872 | relax this jump. +130 is valid since the target will move | |
873 | two bytes closer if we do relax this branch. */ | |
dc810e39 | 874 | if ((int) gap >= -126 && (int) gap <= 130) |
5907e628 JL |
875 | { |
876 | unsigned char code; | |
877 | ||
878 | /* Note that we've changed the relocs, section contents, | |
879 | etc. */ | |
880 | elf_section_data (sec)->relocs = internal_relocs; | |
881 | free_relocs = NULL; | |
882 | ||
883 | elf_section_data (sec)->this_hdr.contents = contents; | |
884 | free_contents = NULL; | |
885 | ||
5907e628 JL |
886 | free_extsyms = NULL; |
887 | ||
888 | /* If the previous instruction conditionally jumped around | |
889 | this instruction, we may be able to reverse the condition | |
890 | and redirect the previous instruction to the target of | |
891 | this instruction. | |
892 | ||
893 | Such sequences are used by the compiler to deal with | |
894 | long conditional branches. */ | |
dc810e39 AM |
895 | if ((int) gap <= 130 |
896 | && (int) gap >= -128 | |
5907e628 JL |
897 | && last_reloc |
898 | && ELF32_R_TYPE (last_reloc->r_info) == R_H8_PCREL8 | |
899 | && ELF32_R_SYM (last_reloc->r_info) < symtab_hdr->sh_info) | |
900 | { | |
9ad5cbcf AM |
901 | Elf32_External_Sym *esym; |
902 | Elf_External_Sym_Shndx *shndx; | |
5907e628 JL |
903 | bfd_vma last_value; |
904 | asection *last_sym_sec; | |
905 | Elf_Internal_Sym last_symbol; | |
906 | ||
907 | /* We will need to examine the symbol used by the | |
908 | previous relocation. */ | |
dc810e39 | 909 | |
9ad5cbcf AM |
910 | esym = extsyms + ELF32_R_SYM (last_reloc->r_info); |
911 | shndx = shndx_buf; | |
912 | if (shndx != NULL) | |
913 | shndx += ELF32_R_SYM (last_reloc->r_info); | |
914 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, &last_symbol); | |
5907e628 JL |
915 | |
916 | last_sym_sec | |
917 | = bfd_section_from_elf_index (abfd, last_symbol.st_shndx); | |
918 | last_value = (last_symbol.st_value | |
919 | + last_sym_sec->output_section->vma | |
920 | + last_sym_sec->output_offset); | |
921 | ||
922 | /* Verify that the previous relocation was for a | |
923 | branch around this instruction and that no symbol | |
924 | exists at the current location. */ | |
925 | if (last_value == dot + 4 | |
926 | && last_reloc->r_offset + 2 == irel->r_offset | |
9ad5cbcf | 927 | && ! elf32_h8_symbol_address_p (abfd, sec, dot)) |
5907e628 JL |
928 | { |
929 | /* We can eliminate this jump. Twiddle the | |
930 | previous relocation as necessary. */ | |
931 | irel->r_info | |
932 | = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
933 | ELF32_R_TYPE (R_H8_NONE)); | |
934 | ||
935 | last_reloc->r_info | |
936 | = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
937 | ELF32_R_TYPE (R_H8_PCREL8)); | |
938 | last_reloc->r_addend = irel->r_addend; | |
939 | ||
940 | ||
941 | code = bfd_get_8 (abfd, | |
942 | contents + last_reloc->r_offset - 1); | |
943 | code ^= 1; | |
944 | bfd_put_8 (abfd, | |
945 | code, | |
946 | contents + last_reloc->r_offset - 1); | |
947 | ||
948 | /* Delete four bytes of data. */ | |
949 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
950 | irel->r_offset - 1, | |
951 | 4)) | |
952 | goto error_return; | |
953 | ||
954 | *again = true; | |
955 | break; | |
956 | } | |
957 | } | |
958 | ||
959 | /* We could not eliminate this jump, so just shorten it. */ | |
960 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
961 | ||
962 | if (code == 0x5e) | |
963 | bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 1); | |
964 | else if (code == 0x5a) | |
965 | bfd_put_8 (abfd, 0x40, contents + irel->r_offset - 1); | |
966 | else | |
967 | abort (); | |
968 | ||
969 | /* Fix the relocation's type. */ | |
970 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
971 | R_H8_PCREL8); | |
972 | ||
973 | /* Delete two bytes of data. */ | |
974 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
975 | irel->r_offset + 1, 2)) | |
976 | goto error_return; | |
977 | ||
978 | /* That will change things, so, we should relax again. | |
979 | Note that this is not required, and it may be slow. */ | |
980 | *again = true; | |
981 | } | |
982 | break; | |
983 | } | |
984 | ||
985 | /* Try to turn a 16bit pc-relative branch into a 8bit pc-relative | |
986 | branch. */ | |
987 | case R_H8_PCREL16: | |
988 | { | |
989 | bfd_vma value = symval + irel->r_addend; | |
990 | bfd_vma dot; | |
991 | bfd_vma gap; | |
992 | ||
993 | /* Get the address of this instruction. */ | |
994 | dot = (sec->output_section->vma | |
995 | + sec->output_offset | |
996 | + irel->r_offset - 2); | |
dc810e39 | 997 | |
5907e628 JL |
998 | gap = value - dot; |
999 | ||
1000 | /* If the distance is within -126..+130 inclusive, then we can | |
1001 | relax this jump. +130 is valid since the target will move | |
1002 | two bytes closer if we do relax this branch. */ | |
1003 | if ((int)gap >= -126 && (int)gap <= 130) | |
1004 | { | |
1005 | unsigned char code; | |
1006 | ||
1007 | /* Note that we've changed the relocs, section contents, | |
1008 | etc. */ | |
1009 | elf_section_data (sec)->relocs = internal_relocs; | |
1010 | free_relocs = NULL; | |
1011 | ||
1012 | elf_section_data (sec)->this_hdr.contents = contents; | |
1013 | free_contents = NULL; | |
1014 | ||
5907e628 JL |
1015 | free_extsyms = NULL; |
1016 | ||
1017 | /* Get the opcode. */ | |
1018 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
1019 | ||
1020 | if (code == 0x58) | |
1021 | { | |
1022 | /* bCC:16 -> bCC:8 */ | |
1023 | /* Get the condition code from the original insn. */ | |
1024 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
1025 | code &= 0xf0; | |
1026 | code >>= 4; | |
1027 | code |= 0x40; | |
1028 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
1029 | } | |
1030 | else if (code == 0x5c) | |
1031 | bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 2); | |
1032 | else | |
1033 | abort (); | |
1034 | ||
1035 | /* Fix the relocation's type. */ | |
1036 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1037 | R_H8_PCREL8); | |
1038 | irel->r_offset--; | |
1039 | ||
1040 | /* Delete two bytes of data. */ | |
1041 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
1042 | irel->r_offset + 1, 2)) | |
1043 | goto error_return; | |
1044 | ||
1045 | /* That will change things, so, we should relax again. | |
1046 | Note that this is not required, and it may be slow. */ | |
1047 | *again = true; | |
1048 | } | |
1049 | break; | |
1050 | } | |
1051 | ||
1052 | /* This is a 16 bit absolute address in a "mov.b" insn, which may | |
1053 | become an 8 bit absolute address if its in the right range. */ | |
1054 | case R_H8_DIR16A8: | |
1055 | { | |
1056 | bfd_vma value = symval + irel->r_addend; | |
1057 | ||
1058 | if ((bfd_get_mach (abfd) == bfd_mach_h8300 | |
1059 | && value >= 0xff00 | |
1060 | && value <= 0xffff) | |
1061 | || ((bfd_get_mach (abfd) == bfd_mach_h8300h | |
1062 | || bfd_get_mach (abfd) == bfd_mach_h8300s) | |
1063 | && value >= 0xffff00 | |
1064 | && value <= 0xffffff)) | |
1065 | { | |
1066 | unsigned char code; | |
1067 | ||
1068 | /* Note that we've changed the relocs, section contents, | |
1069 | etc. */ | |
1070 | elf_section_data (sec)->relocs = internal_relocs; | |
1071 | free_relocs = NULL; | |
1072 | ||
1073 | elf_section_data (sec)->this_hdr.contents = contents; | |
1074 | free_contents = NULL; | |
1075 | ||
5907e628 JL |
1076 | free_extsyms = NULL; |
1077 | ||
1078 | /* Get the opcode. */ | |
1079 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
1080 | ||
1081 | /* Sanity check. */ | |
1082 | if (code != 0x6a) | |
1083 | abort (); | |
1084 | ||
1085 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
1086 | ||
1087 | if ((code & 0xf0) == 0x00) | |
1088 | bfd_put_8 (abfd, | |
1089 | (code & 0xf) | 0x20, | |
1090 | contents + irel->r_offset - 2); | |
1091 | else if ((code & 0xf0) == 0x80) | |
1092 | bfd_put_8 (abfd, | |
1093 | (code & 0xf) | 0x30, | |
1094 | contents + irel->r_offset - 2); | |
1095 | else | |
1096 | abort (); | |
1097 | ||
1098 | /* Fix the relocation's type. */ | |
1099 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1100 | R_H8_DIR8); | |
1101 | ||
1102 | /* Delete two bytes of data. */ | |
1103 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
1104 | irel->r_offset + 1, 2)) | |
1105 | goto error_return; | |
1106 | ||
1107 | /* That will change things, so, we should relax again. | |
1108 | Note that this is not required, and it may be slow. */ | |
1109 | *again = true; | |
1110 | } | |
1111 | break; | |
1112 | } | |
1113 | ||
1114 | /* This is a 24 bit absolute address in a "mov.b" insn, which may | |
1115 | become an 8 bit absolute address if its in the right range. */ | |
1116 | case R_H8_DIR24A8: | |
1117 | { | |
1118 | bfd_vma value = symval + irel->r_addend; | |
1119 | ||
1120 | if ((bfd_get_mach (abfd) == bfd_mach_h8300 | |
1121 | && value >= 0xff00 | |
1122 | && value <= 0xffff) | |
1123 | || ((bfd_get_mach (abfd) == bfd_mach_h8300h | |
1124 | || bfd_get_mach (abfd) == bfd_mach_h8300s) | |
1125 | && value >= 0xffff00 | |
1126 | && value <= 0xffffff)) | |
1127 | { | |
1128 | unsigned char code; | |
1129 | ||
1130 | /* Note that we've changed the relocs, section contents, | |
1131 | etc. */ | |
1132 | elf_section_data (sec)->relocs = internal_relocs; | |
1133 | free_relocs = NULL; | |
1134 | ||
1135 | elf_section_data (sec)->this_hdr.contents = contents; | |
1136 | free_contents = NULL; | |
1137 | ||
5907e628 JL |
1138 | free_extsyms = NULL; |
1139 | ||
1140 | /* Get the opcode. */ | |
1141 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
1142 | ||
1143 | /* Sanity check. */ | |
1144 | if (code != 0x6a) | |
1145 | abort (); | |
1146 | ||
1147 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
1148 | ||
1149 | if ((code & 0xf0) == 0x00) | |
1150 | bfd_put_8 (abfd, | |
1151 | (code & 0xf) | 0x20, | |
1152 | contents + irel->r_offset - 2); | |
1153 | else if ((code & 0xf0) == 0x80) | |
1154 | bfd_put_8 (abfd, | |
1155 | (code & 0xf) | 0x30, | |
1156 | contents + irel->r_offset - 2); | |
1157 | else | |
1158 | abort (); | |
1159 | ||
1160 | /* Fix the relocation's type. */ | |
1161 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1162 | R_H8_DIR8); | |
1163 | ||
1164 | /* Delete two bytes of data. */ | |
1165 | if (!elf32_h8_relax_delete_bytes (abfd, sec, irel->r_offset, 2)) | |
1166 | goto error_return; | |
1167 | ||
1168 | /* That will change things, so, we should relax again. | |
1169 | Note that this is not required, and it may be slow. */ | |
1170 | *again = true; | |
1171 | } | |
1172 | } | |
1173 | ||
1174 | /* FALLTHRU */ | |
1175 | ||
1176 | /* This is a 24/32bit absolute address in a "mov" insn, which may | |
1177 | become a 16bit absoulte address if it is in the right range. */ | |
1178 | case R_H8_DIR32A16: | |
1179 | { | |
1180 | bfd_vma value = symval + irel->r_addend; | |
1181 | ||
1182 | if (value <= 0x7fff || value >= 0xff8000) | |
1183 | { | |
1184 | unsigned char code; | |
1185 | ||
1186 | /* Note that we've changed the relocs, section contents, | |
1187 | etc. */ | |
1188 | elf_section_data (sec)->relocs = internal_relocs; | |
1189 | free_relocs = NULL; | |
1190 | ||
1191 | elf_section_data (sec)->this_hdr.contents = contents; | |
1192 | free_contents = NULL; | |
1193 | ||
5907e628 JL |
1194 | free_extsyms = NULL; |
1195 | ||
1196 | /* Get the opcode. */ | |
1197 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
1198 | ||
1199 | /* We just need to turn off bit 0x20. */ | |
1200 | code &= ~0x20; | |
1201 | ||
1202 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); | |
1203 | ||
1204 | /* Fix the relocation's type. */ | |
1205 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1206 | R_H8_DIR16A8); | |
1207 | ||
1208 | /* Delete two bytes of data. */ | |
1209 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
1210 | irel->r_offset + 1, 2)) | |
1211 | goto error_return; | |
1212 | ||
1213 | /* That will change things, so, we should relax again. | |
1214 | Note that this is not required, and it may be slow. */ | |
1215 | *again = true; | |
1216 | } | |
1217 | break; | |
1218 | } | |
1219 | ||
1220 | default: | |
1221 | break; | |
1222 | } | |
1223 | } | |
1224 | ||
1225 | if (free_relocs != NULL) | |
1226 | { | |
1227 | free (free_relocs); | |
1228 | free_relocs = NULL; | |
1229 | } | |
1230 | ||
1231 | if (free_contents != NULL) | |
1232 | { | |
1233 | if (! link_info->keep_memory) | |
1234 | free (free_contents); | |
1235 | else | |
1236 | { | |
1237 | /* Cache the section contents for elf_link_input_bfd. */ | |
1238 | elf_section_data (sec)->this_hdr.contents = contents; | |
1239 | } | |
1240 | free_contents = NULL; | |
1241 | } | |
1242 | ||
9ad5cbcf AM |
1243 | if (shndx_buf != NULL) |
1244 | { | |
1245 | shndx_hdr->contents = NULL; | |
1246 | free (shndx_buf); | |
1247 | } | |
1248 | ||
5907e628 JL |
1249 | if (free_extsyms != NULL) |
1250 | { | |
1251 | if (! link_info->keep_memory) | |
5907e628 | 1252 | { |
9ad5cbcf AM |
1253 | symtab_hdr->contents = NULL; |
1254 | free (free_extsyms); | |
5907e628 | 1255 | } |
5907e628 JL |
1256 | } |
1257 | ||
1258 | return true; | |
1259 | ||
1260 | error_return: | |
1261 | if (free_relocs != NULL) | |
1262 | free (free_relocs); | |
1263 | if (free_contents != NULL) | |
1264 | free (free_contents); | |
9ad5cbcf AM |
1265 | if (shndx_buf != NULL) |
1266 | { | |
1267 | shndx_hdr->contents = NULL; | |
1268 | free (shndx_buf); | |
1269 | } | |
5907e628 | 1270 | if (free_extsyms != NULL) |
9ad5cbcf AM |
1271 | { |
1272 | symtab_hdr->contents = NULL; | |
1273 | free (free_extsyms); | |
1274 | } | |
5907e628 JL |
1275 | return false; |
1276 | } | |
1277 | ||
1278 | /* Delete some bytes from a section while relaxing. */ | |
1279 | ||
1280 | static boolean | |
1281 | elf32_h8_relax_delete_bytes (abfd, sec, addr, count) | |
1282 | bfd *abfd; | |
1283 | asection *sec; | |
1284 | bfd_vma addr; | |
1285 | int count; | |
1286 | { | |
1287 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 1288 | Elf_Internal_Shdr *shndx_hdr; |
5907e628 | 1289 | Elf32_External_Sym *extsyms; |
9ad5cbcf | 1290 | unsigned int sec_shndx; |
5907e628 JL |
1291 | bfd_byte *contents; |
1292 | Elf_Internal_Rela *irel, *irelend; | |
1293 | Elf_Internal_Rela *irelalign; | |
1294 | bfd_vma toaddr; | |
1295 | Elf32_External_Sym *esym, *esymend; | |
9ad5cbcf AM |
1296 | Elf_External_Sym_Shndx *shndx; |
1297 | struct elf_link_hash_entry **sym_hashes; | |
1298 | struct elf_link_hash_entry **end_hashes; | |
1299 | unsigned int symcount; | |
5907e628 JL |
1300 | |
1301 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1302 | extsyms = (Elf32_External_Sym *) symtab_hdr->contents; | |
1303 | ||
9ad5cbcf | 1304 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
5907e628 JL |
1305 | |
1306 | contents = elf_section_data (sec)->this_hdr.contents; | |
1307 | ||
1308 | /* The deletion must stop at the next ALIGN reloc for an aligment | |
1309 | power larger than the number of bytes we are deleting. */ | |
1310 | ||
1311 | irelalign = NULL; | |
1312 | toaddr = sec->_cooked_size; | |
1313 | ||
1314 | irel = elf_section_data (sec)->relocs; | |
1315 | irelend = irel + sec->reloc_count; | |
1316 | ||
1317 | /* Actually delete the bytes. */ | |
dc810e39 AM |
1318 | memmove (contents + addr, contents + addr + count, |
1319 | (size_t) (toaddr - addr - count)); | |
5907e628 JL |
1320 | sec->_cooked_size -= count; |
1321 | ||
1322 | /* Adjust all the relocs. */ | |
1323 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
1324 | { | |
1325 | /* Get the new reloc address. */ | |
1326 | if ((irel->r_offset > addr | |
1327 | && irel->r_offset < toaddr)) | |
1328 | irel->r_offset -= count; | |
1329 | } | |
1330 | ||
1331 | /* Adjust the local symbols defined in this section. */ | |
9ad5cbcf AM |
1332 | shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; |
1333 | shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents; | |
5907e628 JL |
1334 | esym = extsyms; |
1335 | esymend = esym + symtab_hdr->sh_info; | |
9ad5cbcf | 1336 | for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL)) |
5907e628 JL |
1337 | { |
1338 | Elf_Internal_Sym isym; | |
9ad5cbcf | 1339 | Elf_External_Sym_Shndx dummy; |
5907e628 | 1340 | |
9ad5cbcf | 1341 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym); |
5907e628 | 1342 | |
9ad5cbcf | 1343 | if (isym.st_shndx == sec_shndx |
5907e628 JL |
1344 | && isym.st_value > addr |
1345 | && isym.st_value < toaddr) | |
1346 | { | |
1347 | isym.st_value -= count; | |
9ad5cbcf | 1348 | bfd_elf32_swap_symbol_out (abfd, &isym, esym, &dummy); |
5907e628 JL |
1349 | } |
1350 | } | |
1351 | ||
1352 | /* Now adjust the global symbols defined in this section. */ | |
9ad5cbcf AM |
1353 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1354 | - symtab_hdr->sh_info); | |
1355 | sym_hashes = elf_sym_hashes (abfd); | |
1356 | end_hashes = sym_hashes + symcount; | |
1357 | for (; sym_hashes < end_hashes; sym_hashes++) | |
5907e628 | 1358 | { |
9ad5cbcf AM |
1359 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1360 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1361 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1362 | && sym_hash->root.u.def.section == sec | |
1363 | && sym_hash->root.u.def.value > addr | |
1364 | && sym_hash->root.u.def.value < toaddr) | |
5907e628 | 1365 | { |
9ad5cbcf | 1366 | sym_hash->root.u.def.value -= count; |
5907e628 JL |
1367 | } |
1368 | } | |
1369 | ||
1370 | return true; | |
1371 | } | |
1372 | ||
1373 | /* Return true if a symbol exists at the given address, else return | |
1374 | false. */ | |
1375 | static boolean | |
9ad5cbcf | 1376 | elf32_h8_symbol_address_p (abfd, sec, addr) |
5907e628 JL |
1377 | bfd *abfd; |
1378 | asection *sec; | |
5907e628 JL |
1379 | bfd_vma addr; |
1380 | { | |
1381 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf AM |
1382 | Elf_Internal_Shdr *shndx_hdr; |
1383 | unsigned int sec_shndx; | |
5907e628 | 1384 | Elf32_External_Sym *esym, *esymend; |
9ad5cbcf AM |
1385 | Elf_External_Sym_Shndx *shndx; |
1386 | struct elf_link_hash_entry **sym_hashes; | |
1387 | struct elf_link_hash_entry **end_hashes; | |
1388 | unsigned int symcount; | |
5907e628 | 1389 | |
9ad5cbcf | 1390 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
5907e628 JL |
1391 | |
1392 | /* Examine all the symbols. */ | |
9ad5cbcf AM |
1393 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1394 | shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
1395 | shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents; | |
1396 | esym = (Elf32_External_Sym *) symtab_hdr->contents; | |
5907e628 | 1397 | esymend = esym + symtab_hdr->sh_info; |
9ad5cbcf | 1398 | for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL)) |
5907e628 JL |
1399 | { |
1400 | Elf_Internal_Sym isym; | |
1401 | ||
9ad5cbcf | 1402 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym); |
5907e628 | 1403 | |
9ad5cbcf | 1404 | if (isym.st_shndx == sec_shndx |
5907e628 JL |
1405 | && isym.st_value == addr) |
1406 | return true; | |
1407 | } | |
1408 | ||
9ad5cbcf AM |
1409 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1410 | - symtab_hdr->sh_info); | |
1411 | sym_hashes = elf_sym_hashes (abfd); | |
1412 | end_hashes = sym_hashes + symcount; | |
1413 | for (; sym_hashes < end_hashes; sym_hashes++) | |
5907e628 | 1414 | { |
9ad5cbcf AM |
1415 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1416 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1417 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1418 | && sym_hash->root.u.def.section == sec | |
1419 | && sym_hash->root.u.def.value == addr) | |
5907e628 JL |
1420 | return true; |
1421 | } | |
9ad5cbcf | 1422 | |
5907e628 JL |
1423 | return false; |
1424 | } | |
1425 | ||
1426 | /* This is a version of bfd_generic_get_relocated_section_contents | |
1427 | which uses elf32_h8_relocate_section. */ | |
1428 | ||
1429 | static bfd_byte * | |
1430 | elf32_h8_get_relocated_section_contents (output_bfd, link_info, link_order, | |
1431 | data, relocateable, symbols) | |
1432 | bfd *output_bfd; | |
1433 | struct bfd_link_info *link_info; | |
1434 | struct bfd_link_order *link_order; | |
1435 | bfd_byte *data; | |
1436 | boolean relocateable; | |
1437 | asymbol **symbols; | |
1438 | { | |
1439 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 1440 | Elf_Internal_Shdr *shndx_hdr; |
5907e628 JL |
1441 | asection *input_section = link_order->u.indirect.section; |
1442 | bfd *input_bfd = input_section->owner; | |
1443 | asection **sections = NULL; | |
1444 | Elf_Internal_Rela *internal_relocs = NULL; | |
1445 | Elf32_External_Sym *external_syms = NULL; | |
9ad5cbcf AM |
1446 | Elf_External_Sym_Shndx *shndx_buf = NULL; |
1447 | Elf_External_Sym_Shndx *shndx; | |
5907e628 JL |
1448 | Elf_Internal_Sym *internal_syms = NULL; |
1449 | ||
1450 | /* We only need to handle the case of relaxing, or of having a | |
1451 | particular set of section contents, specially. */ | |
1452 | if (relocateable | |
1453 | || elf_section_data (input_section)->this_hdr.contents == NULL) | |
1454 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
1455 | link_order, data, | |
1456 | relocateable, | |
1457 | symbols); | |
1458 | ||
1459 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
9ad5cbcf | 1460 | shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr; |
5907e628 JL |
1461 | |
1462 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
dc810e39 | 1463 | (size_t) input_section->_raw_size); |
5907e628 JL |
1464 | |
1465 | if ((input_section->flags & SEC_RELOC) != 0 | |
1466 | && input_section->reloc_count > 0) | |
1467 | { | |
1468 | Elf_Internal_Sym *isymp; | |
1469 | asection **secpp; | |
1470 | Elf32_External_Sym *esym, *esymend; | |
9ad5cbcf | 1471 | bfd_size_type amt; |
5907e628 JL |
1472 | |
1473 | if (symtab_hdr->contents != NULL) | |
1474 | external_syms = (Elf32_External_Sym *) symtab_hdr->contents; | |
9ad5cbcf | 1475 | else if (symtab_hdr->sh_info != 0) |
5907e628 | 1476 | { |
dc810e39 AM |
1477 | amt = symtab_hdr->sh_info; |
1478 | amt *= sizeof (Elf32_External_Sym); | |
1479 | external_syms = (Elf32_External_Sym *) bfd_malloc (amt); | |
9ad5cbcf | 1480 | if (external_syms == NULL) |
5907e628 JL |
1481 | goto error_return; |
1482 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
9ad5cbcf AM |
1483 | || bfd_bread ((PTR) external_syms, amt, input_bfd) != amt) |
1484 | goto error_return; | |
1485 | } | |
1486 | ||
1487 | if (symtab_hdr->sh_info != 0 && shndx_hdr->sh_size != 0) | |
1488 | { | |
1489 | amt = symtab_hdr->sh_info; | |
1490 | amt *= sizeof (Elf_External_Sym_Shndx); | |
1491 | shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt); | |
1492 | if (shndx_buf == NULL) | |
1493 | goto error_return; | |
1494 | if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0 | |
1495 | || bfd_bread ((PTR) shndx_buf, amt, input_bfd) != amt) | |
5907e628 JL |
1496 | goto error_return; |
1497 | } | |
1498 | ||
1499 | internal_relocs = (_bfd_elf32_link_read_relocs | |
1500 | (input_bfd, input_section, (PTR) NULL, | |
1501 | (Elf_Internal_Rela *) NULL, false)); | |
1502 | if (internal_relocs == NULL) | |
1503 | goto error_return; | |
1504 | ||
9ad5cbcf AM |
1505 | amt = symtab_hdr->sh_info; |
1506 | amt *= sizeof (Elf_Internal_Sym); | |
1507 | internal_syms = (Elf_Internal_Sym *) bfd_malloc (amt); | |
1508 | if (internal_syms == NULL && amt != 0) | |
5907e628 JL |
1509 | goto error_return; |
1510 | ||
9ad5cbcf AM |
1511 | amt = symtab_hdr->sh_info; |
1512 | amt *= sizeof (asection *); | |
1513 | sections = (asection **) bfd_malloc (amt); | |
1514 | if (sections == NULL && amt != 0) | |
5907e628 JL |
1515 | goto error_return; |
1516 | ||
9ad5cbcf AM |
1517 | for (isymp = internal_syms, secpp = sections, shndx = shndx_buf, |
1518 | esym = external_syms, esymend = esym + symtab_hdr->sh_info; | |
1519 | esym < esymend; | |
1520 | ++esym, ++isymp, ++secpp, shndx = (shndx ? shndx + 1 : NULL)) | |
5907e628 JL |
1521 | { |
1522 | asection *isec; | |
1523 | ||
9ad5cbcf | 1524 | bfd_elf32_swap_symbol_in (input_bfd, esym, shndx, isymp); |
5907e628 JL |
1525 | |
1526 | if (isymp->st_shndx == SHN_UNDEF) | |
1527 | isec = bfd_und_section_ptr; | |
5907e628 JL |
1528 | else if (isymp->st_shndx == SHN_ABS) |
1529 | isec = bfd_abs_section_ptr; | |
1530 | else if (isymp->st_shndx == SHN_COMMON) | |
1531 | isec = bfd_com_section_ptr; | |
1532 | else | |
9ad5cbcf | 1533 | isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx); |
5907e628 JL |
1534 | |
1535 | *secpp = isec; | |
1536 | } | |
1537 | ||
1538 | if (! elf32_h8_relocate_section (output_bfd, link_info, input_bfd, | |
1539 | input_section, data, internal_relocs, | |
1540 | internal_syms, sections)) | |
1541 | goto error_return; | |
1542 | ||
1543 | if (sections != NULL) | |
1544 | free (sections); | |
5907e628 JL |
1545 | if (internal_syms != NULL) |
1546 | free (internal_syms); | |
9ad5cbcf AM |
1547 | if (shndx_buf != NULL) |
1548 | free (shndx_buf); | |
5907e628 JL |
1549 | if (external_syms != NULL && symtab_hdr->contents == NULL) |
1550 | free (external_syms); | |
5907e628 JL |
1551 | if (internal_relocs != elf_section_data (input_section)->relocs) |
1552 | free (internal_relocs); | |
5907e628 JL |
1553 | } |
1554 | ||
1555 | return data; | |
1556 | ||
1557 | error_return: | |
1558 | if (internal_relocs != NULL | |
1559 | && internal_relocs != elf_section_data (input_section)->relocs) | |
1560 | free (internal_relocs); | |
9ad5cbcf AM |
1561 | if (shndx_buf != NULL) |
1562 | free (shndx_buf); | |
5907e628 JL |
1563 | if (external_syms != NULL && symtab_hdr->contents == NULL) |
1564 | free (external_syms); | |
1565 | if (internal_syms != NULL) | |
1566 | free (internal_syms); | |
1567 | if (sections != NULL) | |
1568 | free (sections); | |
1569 | return NULL; | |
1570 | } | |
1571 | ||
0a83638b | 1572 | |
e01b0e69 JR |
1573 | #define TARGET_BIG_SYM bfd_elf32_h8300_vec |
1574 | #define TARGET_BIG_NAME "elf32-h8300" | |
1575 | #define ELF_ARCH bfd_arch_h8300 | |
1576 | #define ELF_MACHINE_CODE EM_H8_300 | |
1577 | #define ELF_MAXPAGESIZE 0x1 | |
1578 | #define bfd_elf32_bfd_reloc_type_lookup elf32_h8_reloc_type_lookup | |
1579 | #define elf_info_to_howto elf32_h8_info_to_howto | |
1580 | #define elf_info_to_howto_rel elf32_h8_info_to_howto_rel | |
1581 | ||
0a83638b JL |
1582 | /* So we can set/examine bits in e_flags to get the specific |
1583 | H8 architecture in use. */ | |
1584 | #define elf_backend_final_write_processing \ | |
1585 | elf32_h8_final_write_processing | |
1586 | #define elf_backend_object_p \ | |
1587 | elf32_h8_object_p | |
1588 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
1589 | elf32_h8_merge_private_bfd_data | |
1590 | ||
e01b0e69 JR |
1591 | /* ??? when elf_backend_relocate_section is not defined, elf32-target.h |
1592 | defaults to using _bfd_generic_link_hash_table_create, but | |
1593 | elflink.h:bfd_elf32_size_dynamic_sections uses | |
1594 | dynobj = elf_hash_table (info)->dynobj; | |
1595 | and thus requires an elf hash table. */ | |
1596 | #define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create | |
1597 | ||
5e47149d JL |
1598 | /* Use an H8 specific linker, not the ELF generic linker. */ |
1599 | #define elf_backend_relocate_section elf32_h8_relocate_section | |
1600 | ||
5907e628 JL |
1601 | /* And relaxing stuff. */ |
1602 | #define bfd_elf32_bfd_relax_section elf32_h8_relax_section | |
1603 | #define bfd_elf32_bfd_get_relocated_section_contents \ | |
1604 | elf32_h8_get_relocated_section_contents | |
1605 | ||
1606 | ||
e01b0e69 | 1607 | #include "elf32-target.h" |