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1 | /* BFD back-end for Renesas Super-H COFF binaries. | |
2 | Copyright (C) 1993-2021 Free Software Foundation, Inc. | |
3 | Contributed by Cygnus Support. | |
4 | Written by Steve Chamberlain, <sac@cygnus.com>. | |
5 | Relaxing code written by Ian Lance Taylor, <ian@cygnus.com>. | |
6 | ||
7 | This file is part of BFD, the Binary File Descriptor library. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
22 | MA 02110-1301, USA. */ | |
23 | ||
24 | #include "sysdep.h" | |
25 | #include "bfd.h" | |
26 | #include "libiberty.h" | |
27 | #include "libbfd.h" | |
28 | #include "bfdlink.h" | |
29 | #include "coff/sh.h" | |
30 | #include "coff/internal.h" | |
31 | ||
32 | #undef bfd_pe_print_pdata | |
33 | ||
34 | #ifdef COFF_WITH_PE | |
35 | #include "coff/pe.h" | |
36 | ||
37 | #ifndef COFF_IMAGE_WITH_PE | |
38 | static bfd_boolean sh_align_load_span | |
39 | (bfd *, asection *, bfd_byte *, | |
40 | bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma), | |
41 | void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *); | |
42 | ||
43 | #define _bfd_sh_align_load_span sh_align_load_span | |
44 | #endif | |
45 | ||
46 | #define bfd_pe_print_pdata _bfd_pe_print_ce_compressed_pdata | |
47 | ||
48 | #else | |
49 | ||
50 | #define bfd_pe_print_pdata NULL | |
51 | ||
52 | #endif /* COFF_WITH_PE. */ | |
53 | ||
54 | #include "libcoff.h" | |
55 | ||
56 | /* Internal functions. */ | |
57 | ||
58 | #ifdef COFF_WITH_PE | |
59 | /* Can't build import tables with 2**4 alignment. */ | |
60 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2 | |
61 | #else | |
62 | /* Default section alignment to 2**4. */ | |
63 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 4 | |
64 | #endif | |
65 | ||
66 | #ifdef COFF_IMAGE_WITH_PE | |
67 | /* Align PE executables. */ | |
68 | #define COFF_PAGE_SIZE 0x1000 | |
69 | #endif | |
70 | ||
71 | /* Generate long file names. */ | |
72 | #define COFF_LONG_FILENAMES | |
73 | ||
74 | #ifdef COFF_WITH_PE | |
75 | /* Return TRUE if this relocation should | |
76 | appear in the output .reloc section. */ | |
77 | ||
78 | static bfd_boolean | |
79 | in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED, | |
80 | reloc_howto_type * howto) | |
81 | { | |
82 | return ! howto->pc_relative && howto->type != R_SH_IMAGEBASE; | |
83 | } | |
84 | #endif | |
85 | ||
86 | static bfd_reloc_status_type | |
87 | sh_reloc (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
88 | static bfd_boolean | |
89 | sh_relocate_section (bfd *, struct bfd_link_info *, bfd *, asection *, | |
90 | bfd_byte *, struct internal_reloc *, | |
91 | struct internal_syment *, asection **); | |
92 | static bfd_boolean | |
93 | sh_align_loads (bfd *, asection *, struct internal_reloc *, | |
94 | bfd_byte *, bfd_boolean *); | |
95 | ||
96 | /* The supported relocations. There are a lot of relocations defined | |
97 | in coff/internal.h which we do not expect to ever see. */ | |
98 | static reloc_howto_type sh_coff_howtos[] = | |
99 | { | |
100 | EMPTY_HOWTO (0), | |
101 | EMPTY_HOWTO (1), | |
102 | #ifdef COFF_WITH_PE | |
103 | /* Windows CE */ | |
104 | HOWTO (R_SH_IMM32CE, /* type */ | |
105 | 0, /* rightshift */ | |
106 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
107 | 32, /* bitsize */ | |
108 | FALSE, /* pc_relative */ | |
109 | 0, /* bitpos */ | |
110 | complain_overflow_bitfield, /* complain_on_overflow */ | |
111 | sh_reloc, /* special_function */ | |
112 | "r_imm32ce", /* name */ | |
113 | TRUE, /* partial_inplace */ | |
114 | 0xffffffff, /* src_mask */ | |
115 | 0xffffffff, /* dst_mask */ | |
116 | FALSE), /* pcrel_offset */ | |
117 | #else | |
118 | EMPTY_HOWTO (2), | |
119 | #endif | |
120 | EMPTY_HOWTO (3), /* R_SH_PCREL8 */ | |
121 | EMPTY_HOWTO (4), /* R_SH_PCREL16 */ | |
122 | EMPTY_HOWTO (5), /* R_SH_HIGH8 */ | |
123 | EMPTY_HOWTO (6), /* R_SH_IMM24 */ | |
124 | EMPTY_HOWTO (7), /* R_SH_LOW16 */ | |
125 | EMPTY_HOWTO (8), | |
126 | EMPTY_HOWTO (9), /* R_SH_PCDISP8BY4 */ | |
127 | ||
128 | HOWTO (R_SH_PCDISP8BY2, /* type */ | |
129 | 1, /* rightshift */ | |
130 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
131 | 8, /* bitsize */ | |
132 | TRUE, /* pc_relative */ | |
133 | 0, /* bitpos */ | |
134 | complain_overflow_signed, /* complain_on_overflow */ | |
135 | sh_reloc, /* special_function */ | |
136 | "r_pcdisp8by2", /* name */ | |
137 | TRUE, /* partial_inplace */ | |
138 | 0xff, /* src_mask */ | |
139 | 0xff, /* dst_mask */ | |
140 | TRUE), /* pcrel_offset */ | |
141 | ||
142 | EMPTY_HOWTO (11), /* R_SH_PCDISP8 */ | |
143 | ||
144 | HOWTO (R_SH_PCDISP, /* type */ | |
145 | 1, /* rightshift */ | |
146 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
147 | 12, /* bitsize */ | |
148 | TRUE, /* pc_relative */ | |
149 | 0, /* bitpos */ | |
150 | complain_overflow_signed, /* complain_on_overflow */ | |
151 | sh_reloc, /* special_function */ | |
152 | "r_pcdisp12by2", /* name */ | |
153 | TRUE, /* partial_inplace */ | |
154 | 0xfff, /* src_mask */ | |
155 | 0xfff, /* dst_mask */ | |
156 | TRUE), /* pcrel_offset */ | |
157 | ||
158 | EMPTY_HOWTO (13), | |
159 | ||
160 | HOWTO (R_SH_IMM32, /* type */ | |
161 | 0, /* rightshift */ | |
162 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
163 | 32, /* bitsize */ | |
164 | FALSE, /* pc_relative */ | |
165 | 0, /* bitpos */ | |
166 | complain_overflow_bitfield, /* complain_on_overflow */ | |
167 | sh_reloc, /* special_function */ | |
168 | "r_imm32", /* name */ | |
169 | TRUE, /* partial_inplace */ | |
170 | 0xffffffff, /* src_mask */ | |
171 | 0xffffffff, /* dst_mask */ | |
172 | FALSE), /* pcrel_offset */ | |
173 | ||
174 | EMPTY_HOWTO (15), | |
175 | #ifdef COFF_WITH_PE | |
176 | HOWTO (R_SH_IMAGEBASE, /* type */ | |
177 | 0, /* rightshift */ | |
178 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
179 | 32, /* bitsize */ | |
180 | FALSE, /* pc_relative */ | |
181 | 0, /* bitpos */ | |
182 | complain_overflow_bitfield, /* complain_on_overflow */ | |
183 | sh_reloc, /* special_function */ | |
184 | "rva32", /* name */ | |
185 | TRUE, /* partial_inplace */ | |
186 | 0xffffffff, /* src_mask */ | |
187 | 0xffffffff, /* dst_mask */ | |
188 | FALSE), /* pcrel_offset */ | |
189 | #else | |
190 | EMPTY_HOWTO (16), /* R_SH_IMM8 */ | |
191 | #endif | |
192 | EMPTY_HOWTO (17), /* R_SH_IMM8BY2 */ | |
193 | EMPTY_HOWTO (18), /* R_SH_IMM8BY4 */ | |
194 | EMPTY_HOWTO (19), /* R_SH_IMM4 */ | |
195 | EMPTY_HOWTO (20), /* R_SH_IMM4BY2 */ | |
196 | EMPTY_HOWTO (21), /* R_SH_IMM4BY4 */ | |
197 | ||
198 | HOWTO (R_SH_PCRELIMM8BY2, /* type */ | |
199 | 1, /* rightshift */ | |
200 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
201 | 8, /* bitsize */ | |
202 | TRUE, /* pc_relative */ | |
203 | 0, /* bitpos */ | |
204 | complain_overflow_unsigned, /* complain_on_overflow */ | |
205 | sh_reloc, /* special_function */ | |
206 | "r_pcrelimm8by2", /* name */ | |
207 | TRUE, /* partial_inplace */ | |
208 | 0xff, /* src_mask */ | |
209 | 0xff, /* dst_mask */ | |
210 | TRUE), /* pcrel_offset */ | |
211 | ||
212 | HOWTO (R_SH_PCRELIMM8BY4, /* type */ | |
213 | 2, /* rightshift */ | |
214 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
215 | 8, /* bitsize */ | |
216 | TRUE, /* pc_relative */ | |
217 | 0, /* bitpos */ | |
218 | complain_overflow_unsigned, /* complain_on_overflow */ | |
219 | sh_reloc, /* special_function */ | |
220 | "r_pcrelimm8by4", /* name */ | |
221 | TRUE, /* partial_inplace */ | |
222 | 0xff, /* src_mask */ | |
223 | 0xff, /* dst_mask */ | |
224 | TRUE), /* pcrel_offset */ | |
225 | ||
226 | HOWTO (R_SH_IMM16, /* type */ | |
227 | 0, /* rightshift */ | |
228 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
229 | 16, /* bitsize */ | |
230 | FALSE, /* pc_relative */ | |
231 | 0, /* bitpos */ | |
232 | complain_overflow_bitfield, /* complain_on_overflow */ | |
233 | sh_reloc, /* special_function */ | |
234 | "r_imm16", /* name */ | |
235 | TRUE, /* partial_inplace */ | |
236 | 0xffff, /* src_mask */ | |
237 | 0xffff, /* dst_mask */ | |
238 | FALSE), /* pcrel_offset */ | |
239 | ||
240 | HOWTO (R_SH_SWITCH16, /* type */ | |
241 | 0, /* rightshift */ | |
242 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
243 | 16, /* bitsize */ | |
244 | FALSE, /* pc_relative */ | |
245 | 0, /* bitpos */ | |
246 | complain_overflow_bitfield, /* complain_on_overflow */ | |
247 | sh_reloc, /* special_function */ | |
248 | "r_switch16", /* name */ | |
249 | TRUE, /* partial_inplace */ | |
250 | 0xffff, /* src_mask */ | |
251 | 0xffff, /* dst_mask */ | |
252 | FALSE), /* pcrel_offset */ | |
253 | ||
254 | HOWTO (R_SH_SWITCH32, /* type */ | |
255 | 0, /* rightshift */ | |
256 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
257 | 32, /* bitsize */ | |
258 | FALSE, /* pc_relative */ | |
259 | 0, /* bitpos */ | |
260 | complain_overflow_bitfield, /* complain_on_overflow */ | |
261 | sh_reloc, /* special_function */ | |
262 | "r_switch32", /* name */ | |
263 | TRUE, /* partial_inplace */ | |
264 | 0xffffffff, /* src_mask */ | |
265 | 0xffffffff, /* dst_mask */ | |
266 | FALSE), /* pcrel_offset */ | |
267 | ||
268 | HOWTO (R_SH_USES, /* type */ | |
269 | 0, /* rightshift */ | |
270 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
271 | 16, /* bitsize */ | |
272 | FALSE, /* pc_relative */ | |
273 | 0, /* bitpos */ | |
274 | complain_overflow_bitfield, /* complain_on_overflow */ | |
275 | sh_reloc, /* special_function */ | |
276 | "r_uses", /* name */ | |
277 | TRUE, /* partial_inplace */ | |
278 | 0xffff, /* src_mask */ | |
279 | 0xffff, /* dst_mask */ | |
280 | FALSE), /* pcrel_offset */ | |
281 | ||
282 | HOWTO (R_SH_COUNT, /* type */ | |
283 | 0, /* rightshift */ | |
284 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
285 | 32, /* bitsize */ | |
286 | FALSE, /* pc_relative */ | |
287 | 0, /* bitpos */ | |
288 | complain_overflow_bitfield, /* complain_on_overflow */ | |
289 | sh_reloc, /* special_function */ | |
290 | "r_count", /* name */ | |
291 | TRUE, /* partial_inplace */ | |
292 | 0xffffffff, /* src_mask */ | |
293 | 0xffffffff, /* dst_mask */ | |
294 | FALSE), /* pcrel_offset */ | |
295 | ||
296 | HOWTO (R_SH_ALIGN, /* type */ | |
297 | 0, /* rightshift */ | |
298 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
299 | 32, /* bitsize */ | |
300 | FALSE, /* pc_relative */ | |
301 | 0, /* bitpos */ | |
302 | complain_overflow_bitfield, /* complain_on_overflow */ | |
303 | sh_reloc, /* special_function */ | |
304 | "r_align", /* name */ | |
305 | TRUE, /* partial_inplace */ | |
306 | 0xffffffff, /* src_mask */ | |
307 | 0xffffffff, /* dst_mask */ | |
308 | FALSE), /* pcrel_offset */ | |
309 | ||
310 | HOWTO (R_SH_CODE, /* type */ | |
311 | 0, /* rightshift */ | |
312 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
313 | 32, /* bitsize */ | |
314 | FALSE, /* pc_relative */ | |
315 | 0, /* bitpos */ | |
316 | complain_overflow_bitfield, /* complain_on_overflow */ | |
317 | sh_reloc, /* special_function */ | |
318 | "r_code", /* name */ | |
319 | TRUE, /* partial_inplace */ | |
320 | 0xffffffff, /* src_mask */ | |
321 | 0xffffffff, /* dst_mask */ | |
322 | FALSE), /* pcrel_offset */ | |
323 | ||
324 | HOWTO (R_SH_DATA, /* type */ | |
325 | 0, /* rightshift */ | |
326 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
327 | 32, /* bitsize */ | |
328 | FALSE, /* pc_relative */ | |
329 | 0, /* bitpos */ | |
330 | complain_overflow_bitfield, /* complain_on_overflow */ | |
331 | sh_reloc, /* special_function */ | |
332 | "r_data", /* name */ | |
333 | TRUE, /* partial_inplace */ | |
334 | 0xffffffff, /* src_mask */ | |
335 | 0xffffffff, /* dst_mask */ | |
336 | FALSE), /* pcrel_offset */ | |
337 | ||
338 | HOWTO (R_SH_LABEL, /* type */ | |
339 | 0, /* rightshift */ | |
340 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
341 | 32, /* bitsize */ | |
342 | FALSE, /* pc_relative */ | |
343 | 0, /* bitpos */ | |
344 | complain_overflow_bitfield, /* complain_on_overflow */ | |
345 | sh_reloc, /* special_function */ | |
346 | "r_label", /* name */ | |
347 | TRUE, /* partial_inplace */ | |
348 | 0xffffffff, /* src_mask */ | |
349 | 0xffffffff, /* dst_mask */ | |
350 | FALSE), /* pcrel_offset */ | |
351 | ||
352 | HOWTO (R_SH_SWITCH8, /* type */ | |
353 | 0, /* rightshift */ | |
354 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
355 | 8, /* bitsize */ | |
356 | FALSE, /* pc_relative */ | |
357 | 0, /* bitpos */ | |
358 | complain_overflow_bitfield, /* complain_on_overflow */ | |
359 | sh_reloc, /* special_function */ | |
360 | "r_switch8", /* name */ | |
361 | TRUE, /* partial_inplace */ | |
362 | 0xff, /* src_mask */ | |
363 | 0xff, /* dst_mask */ | |
364 | FALSE) /* pcrel_offset */ | |
365 | }; | |
366 | ||
367 | #define SH_COFF_HOWTO_COUNT (sizeof sh_coff_howtos / sizeof sh_coff_howtos[0]) | |
368 | ||
369 | /* Check for a bad magic number. */ | |
370 | #define BADMAG(x) SHBADMAG(x) | |
371 | ||
372 | /* Customize coffcode.h (this is not currently used). */ | |
373 | #define SH 1 | |
374 | ||
375 | /* FIXME: This should not be set here. */ | |
376 | #define __A_MAGIC_SET__ | |
377 | ||
378 | #ifndef COFF_WITH_PE | |
379 | /* Swap the r_offset field in and out. */ | |
380 | #define SWAP_IN_RELOC_OFFSET H_GET_32 | |
381 | #define SWAP_OUT_RELOC_OFFSET H_PUT_32 | |
382 | ||
383 | /* Swap out extra information in the reloc structure. */ | |
384 | #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \ | |
385 | do \ | |
386 | { \ | |
387 | dst->r_stuff[0] = 'S'; \ | |
388 | dst->r_stuff[1] = 'C'; \ | |
389 | } \ | |
390 | while (0) | |
391 | #endif | |
392 | ||
393 | /* Get the value of a symbol, when performing a relocation. */ | |
394 | ||
395 | static long | |
396 | get_symbol_value (asymbol *symbol) | |
397 | { | |
398 | bfd_vma relocation; | |
399 | ||
400 | if (bfd_is_com_section (symbol->section)) | |
401 | relocation = 0; | |
402 | else | |
403 | relocation = (symbol->value + | |
404 | symbol->section->output_section->vma + | |
405 | symbol->section->output_offset); | |
406 | ||
407 | return relocation; | |
408 | } | |
409 | ||
410 | #ifdef COFF_WITH_PE | |
411 | /* Convert an rtype to howto for the COFF backend linker. | |
412 | Copied from coff-i386. */ | |
413 | #define coff_rtype_to_howto coff_sh_rtype_to_howto | |
414 | ||
415 | ||
416 | static reloc_howto_type * | |
417 | coff_sh_rtype_to_howto (bfd * abfd ATTRIBUTE_UNUSED, | |
418 | asection * sec, | |
419 | struct internal_reloc * rel, | |
420 | struct coff_link_hash_entry * h, | |
421 | struct internal_syment * sym, | |
422 | bfd_vma * addendp) | |
423 | { | |
424 | reloc_howto_type * howto; | |
425 | ||
426 | howto = sh_coff_howtos + rel->r_type; | |
427 | ||
428 | *addendp = 0; | |
429 | ||
430 | if (howto->pc_relative) | |
431 | *addendp += sec->vma; | |
432 | ||
433 | if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0) | |
434 | { | |
435 | /* This is a common symbol. The section contents include the | |
436 | size (sym->n_value) as an addend. The relocate_section | |
437 | function will be adding in the final value of the symbol. We | |
438 | need to subtract out the current size in order to get the | |
439 | correct result. */ | |
440 | BFD_ASSERT (h != NULL); | |
441 | } | |
442 | ||
443 | if (howto->pc_relative) | |
444 | { | |
445 | *addendp -= 4; | |
446 | ||
447 | /* If the symbol is defined, then the generic code is going to | |
448 | add back the symbol value in order to cancel out an | |
449 | adjustment it made to the addend. However, we set the addend | |
450 | to 0 at the start of this function. We need to adjust here, | |
451 | to avoid the adjustment the generic code will make. FIXME: | |
452 | This is getting a bit hackish. */ | |
453 | if (sym != NULL && sym->n_scnum != 0) | |
454 | *addendp -= sym->n_value; | |
455 | } | |
456 | ||
457 | if (rel->r_type == R_SH_IMAGEBASE) | |
458 | *addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase; | |
459 | ||
460 | return howto; | |
461 | } | |
462 | ||
463 | #endif /* COFF_WITH_PE */ | |
464 | ||
465 | /* This structure is used to map BFD reloc codes to SH PE relocs. */ | |
466 | struct shcoff_reloc_map | |
467 | { | |
468 | bfd_reloc_code_real_type bfd_reloc_val; | |
469 | unsigned char shcoff_reloc_val; | |
470 | }; | |
471 | ||
472 | #ifdef COFF_WITH_PE | |
473 | /* An array mapping BFD reloc codes to SH PE relocs. */ | |
474 | static const struct shcoff_reloc_map sh_reloc_map[] = | |
475 | { | |
476 | { BFD_RELOC_32, R_SH_IMM32CE }, | |
477 | { BFD_RELOC_RVA, R_SH_IMAGEBASE }, | |
478 | { BFD_RELOC_CTOR, R_SH_IMM32CE }, | |
479 | }; | |
480 | #else | |
481 | /* An array mapping BFD reloc codes to SH PE relocs. */ | |
482 | static const struct shcoff_reloc_map sh_reloc_map[] = | |
483 | { | |
484 | { BFD_RELOC_32, R_SH_IMM32 }, | |
485 | { BFD_RELOC_CTOR, R_SH_IMM32 }, | |
486 | }; | |
487 | #endif | |
488 | ||
489 | /* Given a BFD reloc code, return the howto structure for the | |
490 | corresponding SH PE reloc. */ | |
491 | #define coff_bfd_reloc_type_lookup sh_coff_reloc_type_lookup | |
492 | #define coff_bfd_reloc_name_lookup sh_coff_reloc_name_lookup | |
493 | ||
494 | static reloc_howto_type * | |
495 | sh_coff_reloc_type_lookup (bfd *abfd, | |
496 | bfd_reloc_code_real_type code) | |
497 | { | |
498 | unsigned int i; | |
499 | ||
500 | for (i = ARRAY_SIZE (sh_reloc_map); i--;) | |
501 | if (sh_reloc_map[i].bfd_reloc_val == code) | |
502 | return &sh_coff_howtos[(int) sh_reloc_map[i].shcoff_reloc_val]; | |
503 | ||
504 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), | |
505 | abfd, (unsigned int) code); | |
506 | return NULL; | |
507 | } | |
508 | ||
509 | static reloc_howto_type * | |
510 | sh_coff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
511 | const char *r_name) | |
512 | { | |
513 | unsigned int i; | |
514 | ||
515 | for (i = 0; i < sizeof (sh_coff_howtos) / sizeof (sh_coff_howtos[0]); i++) | |
516 | if (sh_coff_howtos[i].name != NULL | |
517 | && strcasecmp (sh_coff_howtos[i].name, r_name) == 0) | |
518 | return &sh_coff_howtos[i]; | |
519 | ||
520 | return NULL; | |
521 | } | |
522 | ||
523 | /* This macro is used in coffcode.h to get the howto corresponding to | |
524 | an internal reloc. */ | |
525 | ||
526 | #define RTYPE2HOWTO(relent, internal) \ | |
527 | ((relent)->howto = \ | |
528 | ((internal)->r_type < SH_COFF_HOWTO_COUNT \ | |
529 | ? &sh_coff_howtos[(internal)->r_type] \ | |
530 | : (reloc_howto_type *) NULL)) | |
531 | ||
532 | /* This is the same as the macro in coffcode.h, except that it copies | |
533 | r_offset into reloc_entry->addend for some relocs. */ | |
534 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ | |
535 | { \ | |
536 | coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ | |
537 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ | |
538 | coffsym = (obj_symbols (abfd) \ | |
539 | + (cache_ptr->sym_ptr_ptr - symbols)); \ | |
540 | else if (ptr) \ | |
541 | coffsym = coff_symbol_from (ptr); \ | |
542 | if (coffsym != (coff_symbol_type *) NULL \ | |
543 | && coffsym->native->u.syment.n_scnum == 0) \ | |
544 | cache_ptr->addend = 0; \ | |
545 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ | |
546 | && ptr->section != (asection *) NULL) \ | |
547 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ | |
548 | else \ | |
549 | cache_ptr->addend = 0; \ | |
550 | if ((reloc).r_type == R_SH_SWITCH8 \ | |
551 | || (reloc).r_type == R_SH_SWITCH16 \ | |
552 | || (reloc).r_type == R_SH_SWITCH32 \ | |
553 | || (reloc).r_type == R_SH_USES \ | |
554 | || (reloc).r_type == R_SH_COUNT \ | |
555 | || (reloc).r_type == R_SH_ALIGN) \ | |
556 | cache_ptr->addend = (reloc).r_offset; \ | |
557 | } | |
558 | ||
559 | /* This is the howto function for the SH relocations. */ | |
560 | ||
561 | static bfd_reloc_status_type | |
562 | sh_reloc (bfd * abfd, | |
563 | arelent * reloc_entry, | |
564 | asymbol * symbol_in, | |
565 | void * data, | |
566 | asection * input_section, | |
567 | bfd * output_bfd, | |
568 | char ** error_message ATTRIBUTE_UNUSED) | |
569 | { | |
570 | bfd_vma insn; | |
571 | bfd_vma sym_value; | |
572 | unsigned short r_type; | |
573 | bfd_vma addr = reloc_entry->address; | |
574 | bfd_byte *hit_data = addr + (bfd_byte *) data; | |
575 | ||
576 | r_type = reloc_entry->howto->type; | |
577 | ||
578 | if (output_bfd != NULL) | |
579 | { | |
580 | /* Partial linking--do nothing. */ | |
581 | reloc_entry->address += input_section->output_offset; | |
582 | return bfd_reloc_ok; | |
583 | } | |
584 | ||
585 | /* Almost all relocs have to do with relaxing. If any work must be | |
586 | done for them, it has been done in sh_relax_section. */ | |
587 | if (r_type != R_SH_IMM32 | |
588 | #ifdef COFF_WITH_PE | |
589 | && r_type != R_SH_IMM32CE | |
590 | && r_type != R_SH_IMAGEBASE | |
591 | #endif | |
592 | && (r_type != R_SH_PCDISP | |
593 | || (symbol_in->flags & BSF_LOCAL) != 0)) | |
594 | return bfd_reloc_ok; | |
595 | ||
596 | if (symbol_in != NULL | |
597 | && bfd_is_und_section (symbol_in->section)) | |
598 | return bfd_reloc_undefined; | |
599 | ||
600 | if (addr > input_section->size) | |
601 | return bfd_reloc_outofrange; | |
602 | ||
603 | sym_value = get_symbol_value (symbol_in); | |
604 | ||
605 | switch (r_type) | |
606 | { | |
607 | case R_SH_IMM32: | |
608 | #ifdef COFF_WITH_PE | |
609 | case R_SH_IMM32CE: | |
610 | #endif | |
611 | insn = bfd_get_32 (abfd, hit_data); | |
612 | insn += sym_value + reloc_entry->addend; | |
613 | bfd_put_32 (abfd, insn, hit_data); | |
614 | break; | |
615 | #ifdef COFF_WITH_PE | |
616 | case R_SH_IMAGEBASE: | |
617 | insn = bfd_get_32 (abfd, hit_data); | |
618 | insn += sym_value + reloc_entry->addend; | |
619 | insn -= pe_data (input_section->output_section->owner)->pe_opthdr.ImageBase; | |
620 | bfd_put_32 (abfd, insn, hit_data); | |
621 | break; | |
622 | #endif | |
623 | case R_SH_PCDISP: | |
624 | insn = bfd_get_16 (abfd, hit_data); | |
625 | sym_value += reloc_entry->addend; | |
626 | sym_value -= (input_section->output_section->vma | |
627 | + input_section->output_offset | |
628 | + addr | |
629 | + 4); | |
630 | sym_value += (((insn & 0xfff) ^ 0x800) - 0x800) << 1; | |
631 | insn = (insn & 0xf000) | ((sym_value >> 1) & 0xfff); | |
632 | bfd_put_16 (abfd, insn, hit_data); | |
633 | if (sym_value + 0x1000 >= 0x2000 || (sym_value & 1) != 0) | |
634 | return bfd_reloc_overflow; | |
635 | break; | |
636 | default: | |
637 | abort (); | |
638 | break; | |
639 | } | |
640 | ||
641 | return bfd_reloc_ok; | |
642 | } | |
643 | ||
644 | #define coff_bfd_merge_private_bfd_data _bfd_generic_verify_endian_match | |
645 | ||
646 | /* We can do relaxing. */ | |
647 | #define coff_bfd_relax_section sh_relax_section | |
648 | ||
649 | /* We use the special COFF backend linker. */ | |
650 | #define coff_relocate_section sh_relocate_section | |
651 | ||
652 | /* When relaxing, we need to use special code to get the relocated | |
653 | section contents. */ | |
654 | #define coff_bfd_get_relocated_section_contents \ | |
655 | sh_coff_get_relocated_section_contents | |
656 | ||
657 | #include "coffcode.h" | |
658 | \f | |
659 | static bfd_boolean | |
660 | sh_relax_delete_bytes (bfd *, asection *, bfd_vma, int); | |
661 | ||
662 | /* This function handles relaxing on the SH. | |
663 | ||
664 | Function calls on the SH look like this: | |
665 | ||
666 | movl L1,r0 | |
667 | ... | |
668 | jsr @r0 | |
669 | ... | |
670 | L1: | |
671 | .long function | |
672 | ||
673 | The compiler and assembler will cooperate to create R_SH_USES | |
674 | relocs on the jsr instructions. The r_offset field of the | |
675 | R_SH_USES reloc is the PC relative offset to the instruction which | |
676 | loads the register (the r_offset field is computed as though it | |
677 | were a jump instruction, so the offset value is actually from four | |
678 | bytes past the instruction). The linker can use this reloc to | |
679 | determine just which function is being called, and thus decide | |
680 | whether it is possible to replace the jsr with a bsr. | |
681 | ||
682 | If multiple function calls are all based on a single register load | |
683 | (i.e., the same function is called multiple times), the compiler | |
684 | guarantees that each function call will have an R_SH_USES reloc. | |
685 | Therefore, if the linker is able to convert each R_SH_USES reloc | |
686 | which refers to that address, it can safely eliminate the register | |
687 | load. | |
688 | ||
689 | When the assembler creates an R_SH_USES reloc, it examines it to | |
690 | determine which address is being loaded (L1 in the above example). | |
691 | It then counts the number of references to that address, and | |
692 | creates an R_SH_COUNT reloc at that address. The r_offset field of | |
693 | the R_SH_COUNT reloc will be the number of references. If the | |
694 | linker is able to eliminate a register load, it can use the | |
695 | R_SH_COUNT reloc to see whether it can also eliminate the function | |
696 | address. | |
697 | ||
698 | SH relaxing also handles another, unrelated, matter. On the SH, if | |
699 | a load or store instruction is not aligned on a four byte boundary, | |
700 | the memory cycle interferes with the 32 bit instruction fetch, | |
701 | causing a one cycle bubble in the pipeline. Therefore, we try to | |
702 | align load and store instructions on four byte boundaries if we | |
703 | can, by swapping them with one of the adjacent instructions. */ | |
704 | ||
705 | static bfd_boolean | |
706 | sh_relax_section (bfd *abfd, | |
707 | asection *sec, | |
708 | struct bfd_link_info *link_info, | |
709 | bfd_boolean *again) | |
710 | { | |
711 | struct internal_reloc *internal_relocs; | |
712 | bfd_boolean have_code; | |
713 | struct internal_reloc *irel, *irelend; | |
714 | bfd_byte *contents = NULL; | |
715 | ||
716 | *again = FALSE; | |
717 | ||
718 | if (bfd_link_relocatable (link_info) | |
719 | || (sec->flags & SEC_RELOC) == 0 | |
720 | || sec->reloc_count == 0) | |
721 | return TRUE; | |
722 | ||
723 | if (coff_section_data (abfd, sec) == NULL) | |
724 | { | |
725 | size_t amt = sizeof (struct coff_section_tdata); | |
726 | sec->used_by_bfd = bfd_zalloc (abfd, amt); | |
727 | if (sec->used_by_bfd == NULL) | |
728 | return FALSE; | |
729 | } | |
730 | ||
731 | internal_relocs = (_bfd_coff_read_internal_relocs | |
732 | (abfd, sec, link_info->keep_memory, | |
733 | (bfd_byte *) NULL, FALSE, | |
734 | (struct internal_reloc *) NULL)); | |
735 | if (internal_relocs == NULL) | |
736 | goto error_return; | |
737 | ||
738 | have_code = FALSE; | |
739 | ||
740 | irelend = internal_relocs + sec->reloc_count; | |
741 | for (irel = internal_relocs; irel < irelend; irel++) | |
742 | { | |
743 | bfd_vma laddr, paddr, symval; | |
744 | unsigned short insn; | |
745 | struct internal_reloc *irelfn, *irelscan, *irelcount; | |
746 | struct internal_syment sym; | |
747 | bfd_signed_vma foff; | |
748 | ||
749 | if (irel->r_type == R_SH_CODE) | |
750 | have_code = TRUE; | |
751 | ||
752 | if (irel->r_type != R_SH_USES) | |
753 | continue; | |
754 | ||
755 | /* Get the section contents. */ | |
756 | if (contents == NULL) | |
757 | { | |
758 | if (coff_section_data (abfd, sec)->contents != NULL) | |
759 | contents = coff_section_data (abfd, sec)->contents; | |
760 | else | |
761 | { | |
762 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) | |
763 | goto error_return; | |
764 | } | |
765 | } | |
766 | ||
767 | /* The r_offset field of the R_SH_USES reloc will point us to | |
768 | the register load. The 4 is because the r_offset field is | |
769 | computed as though it were a jump offset, which are based | |
770 | from 4 bytes after the jump instruction. */ | |
771 | laddr = irel->r_vaddr - sec->vma + 4; | |
772 | /* Careful to sign extend the 32-bit offset. */ | |
773 | laddr += ((irel->r_offset & 0xffffffff) ^ 0x80000000) - 0x80000000; | |
774 | if (laddr >= sec->size) | |
775 | { | |
776 | /* xgettext: c-format */ | |
777 | _bfd_error_handler | |
778 | (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES offset"), | |
779 | abfd, (uint64_t) irel->r_vaddr); | |
780 | continue; | |
781 | } | |
782 | insn = bfd_get_16 (abfd, contents + laddr); | |
783 | ||
784 | /* If the instruction is not mov.l NN,rN, we don't know what to do. */ | |
785 | if ((insn & 0xf000) != 0xd000) | |
786 | { | |
787 | _bfd_error_handler | |
788 | /* xgettext: c-format */ | |
789 | (_("%pB: %#" PRIx64 ": warning: R_SH_USES points to unrecognized insn %#x"), | |
790 | abfd, (uint64_t) irel->r_vaddr, insn); | |
791 | continue; | |
792 | } | |
793 | ||
794 | /* Get the address from which the register is being loaded. The | |
795 | displacement in the mov.l instruction is quadrupled. It is a | |
796 | displacement from four bytes after the movl instruction, but, | |
797 | before adding in the PC address, two least significant bits | |
798 | of the PC are cleared. We assume that the section is aligned | |
799 | on a four byte boundary. */ | |
800 | paddr = insn & 0xff; | |
801 | paddr *= 4; | |
802 | paddr += (laddr + 4) &~ (bfd_vma) 3; | |
803 | if (paddr >= sec->size) | |
804 | { | |
805 | _bfd_error_handler | |
806 | /* xgettext: c-format */ | |
807 | (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES load offset"), | |
808 | abfd, (uint64_t) irel->r_vaddr); | |
809 | continue; | |
810 | } | |
811 | ||
812 | /* Get the reloc for the address from which the register is | |
813 | being loaded. This reloc will tell us which function is | |
814 | actually being called. */ | |
815 | paddr += sec->vma; | |
816 | for (irelfn = internal_relocs; irelfn < irelend; irelfn++) | |
817 | if (irelfn->r_vaddr == paddr | |
818 | #ifdef COFF_WITH_PE | |
819 | && (irelfn->r_type == R_SH_IMM32 | |
820 | || irelfn->r_type == R_SH_IMM32CE | |
821 | || irelfn->r_type == R_SH_IMAGEBASE) | |
822 | ||
823 | #else | |
824 | && irelfn->r_type == R_SH_IMM32 | |
825 | #endif | |
826 | ) | |
827 | break; | |
828 | if (irelfn >= irelend) | |
829 | { | |
830 | _bfd_error_handler | |
831 | /* xgettext: c-format */ | |
832 | (_("%pB: %#" PRIx64 ": warning: could not find expected reloc"), | |
833 | abfd, (uint64_t) paddr); | |
834 | continue; | |
835 | } | |
836 | ||
837 | /* Get the value of the symbol referred to by the reloc. */ | |
838 | if (! _bfd_coff_get_external_symbols (abfd)) | |
839 | goto error_return; | |
840 | bfd_coff_swap_sym_in (abfd, | |
841 | ((bfd_byte *) obj_coff_external_syms (abfd) | |
842 | + (irelfn->r_symndx | |
843 | * bfd_coff_symesz (abfd))), | |
844 | &sym); | |
845 | if (sym.n_scnum != 0 && sym.n_scnum != sec->target_index) | |
846 | { | |
847 | _bfd_error_handler | |
848 | /* xgettext: c-format */ | |
849 | (_("%pB: %#" PRIx64 ": warning: symbol in unexpected section"), | |
850 | abfd, (uint64_t) paddr); | |
851 | continue; | |
852 | } | |
853 | ||
854 | if (sym.n_sclass != C_EXT) | |
855 | { | |
856 | symval = (sym.n_value | |
857 | - sec->vma | |
858 | + sec->output_section->vma | |
859 | + sec->output_offset); | |
860 | } | |
861 | else | |
862 | { | |
863 | struct coff_link_hash_entry *h; | |
864 | ||
865 | h = obj_coff_sym_hashes (abfd)[irelfn->r_symndx]; | |
866 | BFD_ASSERT (h != NULL); | |
867 | if (h->root.type != bfd_link_hash_defined | |
868 | && h->root.type != bfd_link_hash_defweak) | |
869 | { | |
870 | /* This appears to be a reference to an undefined | |
871 | symbol. Just ignore it--it will be caught by the | |
872 | regular reloc processing. */ | |
873 | continue; | |
874 | } | |
875 | ||
876 | symval = (h->root.u.def.value | |
877 | + h->root.u.def.section->output_section->vma | |
878 | + h->root.u.def.section->output_offset); | |
879 | } | |
880 | ||
881 | symval += bfd_get_32 (abfd, contents + paddr - sec->vma); | |
882 | ||
883 | /* See if this function call can be shortened. */ | |
884 | foff = (symval | |
885 | - (irel->r_vaddr | |
886 | - sec->vma | |
887 | + sec->output_section->vma | |
888 | + sec->output_offset | |
889 | + 4)); | |
890 | if (foff < -0x1000 || foff >= 0x1000) | |
891 | { | |
892 | /* After all that work, we can't shorten this function call. */ | |
893 | continue; | |
894 | } | |
895 | ||
896 | /* Shorten the function call. */ | |
897 | ||
898 | /* For simplicity of coding, we are going to modify the section | |
899 | contents, the section relocs, and the BFD symbol table. We | |
900 | must tell the rest of the code not to free up this | |
901 | information. It would be possible to instead create a table | |
902 | of changes which have to be made, as is done in coff-mips.c; | |
903 | that would be more work, but would require less memory when | |
904 | the linker is run. */ | |
905 | ||
906 | coff_section_data (abfd, sec)->relocs = internal_relocs; | |
907 | coff_section_data (abfd, sec)->keep_relocs = TRUE; | |
908 | ||
909 | coff_section_data (abfd, sec)->contents = contents; | |
910 | coff_section_data (abfd, sec)->keep_contents = TRUE; | |
911 | ||
912 | obj_coff_keep_syms (abfd) = TRUE; | |
913 | ||
914 | /* Replace the jsr with a bsr. */ | |
915 | ||
916 | /* Change the R_SH_USES reloc into an R_SH_PCDISP reloc, and | |
917 | replace the jsr with a bsr. */ | |
918 | irel->r_type = R_SH_PCDISP; | |
919 | irel->r_symndx = irelfn->r_symndx; | |
920 | if (sym.n_sclass != C_EXT) | |
921 | { | |
922 | /* If this needs to be changed because of future relaxing, | |
923 | it will be handled here like other internal PCDISP | |
924 | relocs. */ | |
925 | bfd_put_16 (abfd, | |
926 | (bfd_vma) 0xb000 | ((foff >> 1) & 0xfff), | |
927 | contents + irel->r_vaddr - sec->vma); | |
928 | } | |
929 | else | |
930 | { | |
931 | /* We can't fully resolve this yet, because the external | |
932 | symbol value may be changed by future relaxing. We let | |
933 | the final link phase handle it. */ | |
934 | bfd_put_16 (abfd, (bfd_vma) 0xb000, | |
935 | contents + irel->r_vaddr - sec->vma); | |
936 | } | |
937 | ||
938 | /* See if there is another R_SH_USES reloc referring to the same | |
939 | register load. */ | |
940 | for (irelscan = internal_relocs; irelscan < irelend; irelscan++) | |
941 | if (irelscan->r_type == R_SH_USES | |
942 | && laddr == irelscan->r_vaddr - sec->vma + 4 + irelscan->r_offset) | |
943 | break; | |
944 | if (irelscan < irelend) | |
945 | { | |
946 | /* Some other function call depends upon this register load, | |
947 | and we have not yet converted that function call. | |
948 | Indeed, we may never be able to convert it. There is | |
949 | nothing else we can do at this point. */ | |
950 | continue; | |
951 | } | |
952 | ||
953 | /* Look for a R_SH_COUNT reloc on the location where the | |
954 | function address is stored. Do this before deleting any | |
955 | bytes, to avoid confusion about the address. */ | |
956 | for (irelcount = internal_relocs; irelcount < irelend; irelcount++) | |
957 | if (irelcount->r_vaddr == paddr | |
958 | && irelcount->r_type == R_SH_COUNT) | |
959 | break; | |
960 | ||
961 | /* Delete the register load. */ | |
962 | if (! sh_relax_delete_bytes (abfd, sec, laddr, 2)) | |
963 | goto error_return; | |
964 | ||
965 | /* That will change things, so, just in case it permits some | |
966 | other function call to come within range, we should relax | |
967 | again. Note that this is not required, and it may be slow. */ | |
968 | *again = TRUE; | |
969 | ||
970 | /* Now check whether we got a COUNT reloc. */ | |
971 | if (irelcount >= irelend) | |
972 | { | |
973 | _bfd_error_handler | |
974 | /* xgettext: c-format */ | |
975 | (_("%pB: %#" PRIx64 ": warning: could not find expected COUNT reloc"), | |
976 | abfd, (uint64_t) paddr); | |
977 | continue; | |
978 | } | |
979 | ||
980 | /* The number of uses is stored in the r_offset field. We've | |
981 | just deleted one. */ | |
982 | if (irelcount->r_offset == 0) | |
983 | { | |
984 | /* xgettext: c-format */ | |
985 | _bfd_error_handler (_("%pB: %#" PRIx64 ": warning: bad count"), | |
986 | abfd, (uint64_t) paddr); | |
987 | continue; | |
988 | } | |
989 | ||
990 | --irelcount->r_offset; | |
991 | ||
992 | /* If there are no more uses, we can delete the address. Reload | |
993 | the address from irelfn, in case it was changed by the | |
994 | previous call to sh_relax_delete_bytes. */ | |
995 | if (irelcount->r_offset == 0) | |
996 | { | |
997 | if (! sh_relax_delete_bytes (abfd, sec, | |
998 | irelfn->r_vaddr - sec->vma, 4)) | |
999 | goto error_return; | |
1000 | } | |
1001 | ||
1002 | /* We've done all we can with that function call. */ | |
1003 | } | |
1004 | ||
1005 | /* Look for load and store instructions that we can align on four | |
1006 | byte boundaries. */ | |
1007 | if (have_code) | |
1008 | { | |
1009 | bfd_boolean swapped; | |
1010 | ||
1011 | /* Get the section contents. */ | |
1012 | if (contents == NULL) | |
1013 | { | |
1014 | if (coff_section_data (abfd, sec)->contents != NULL) | |
1015 | contents = coff_section_data (abfd, sec)->contents; | |
1016 | else | |
1017 | { | |
1018 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) | |
1019 | goto error_return; | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | if (! sh_align_loads (abfd, sec, internal_relocs, contents, &swapped)) | |
1024 | goto error_return; | |
1025 | ||
1026 | if (swapped) | |
1027 | { | |
1028 | coff_section_data (abfd, sec)->relocs = internal_relocs; | |
1029 | coff_section_data (abfd, sec)->keep_relocs = TRUE; | |
1030 | ||
1031 | coff_section_data (abfd, sec)->contents = contents; | |
1032 | coff_section_data (abfd, sec)->keep_contents = TRUE; | |
1033 | ||
1034 | obj_coff_keep_syms (abfd) = TRUE; | |
1035 | } | |
1036 | } | |
1037 | ||
1038 | if (internal_relocs != NULL | |
1039 | && internal_relocs != coff_section_data (abfd, sec)->relocs) | |
1040 | { | |
1041 | if (! link_info->keep_memory) | |
1042 | free (internal_relocs); | |
1043 | else | |
1044 | coff_section_data (abfd, sec)->relocs = internal_relocs; | |
1045 | } | |
1046 | ||
1047 | if (contents != NULL && contents != coff_section_data (abfd, sec)->contents) | |
1048 | { | |
1049 | if (! link_info->keep_memory) | |
1050 | free (contents); | |
1051 | else | |
1052 | /* Cache the section contents for coff_link_input_bfd. */ | |
1053 | coff_section_data (abfd, sec)->contents = contents; | |
1054 | } | |
1055 | ||
1056 | return TRUE; | |
1057 | ||
1058 | error_return: | |
1059 | if (internal_relocs != coff_section_data (abfd, sec)->relocs) | |
1060 | free (internal_relocs); | |
1061 | if (contents != coff_section_data (abfd, sec)->contents) | |
1062 | free (contents); | |
1063 | return FALSE; | |
1064 | } | |
1065 | ||
1066 | /* Delete some bytes from a section while relaxing. */ | |
1067 | ||
1068 | static bfd_boolean | |
1069 | sh_relax_delete_bytes (bfd *abfd, | |
1070 | asection *sec, | |
1071 | bfd_vma addr, | |
1072 | int count) | |
1073 | { | |
1074 | bfd_byte *contents; | |
1075 | struct internal_reloc *irel, *irelend; | |
1076 | struct internal_reloc *irelalign; | |
1077 | bfd_vma toaddr; | |
1078 | bfd_byte *esym, *esymend; | |
1079 | bfd_size_type symesz; | |
1080 | struct coff_link_hash_entry **sym_hash; | |
1081 | asection *o; | |
1082 | ||
1083 | contents = coff_section_data (abfd, sec)->contents; | |
1084 | ||
1085 | /* The deletion must stop at the next ALIGN reloc for an alignment | |
1086 | power larger than the number of bytes we are deleting. */ | |
1087 | ||
1088 | irelalign = NULL; | |
1089 | toaddr = sec->size; | |
1090 | ||
1091 | irel = coff_section_data (abfd, sec)->relocs; | |
1092 | irelend = irel + sec->reloc_count; | |
1093 | for (; irel < irelend; irel++) | |
1094 | { | |
1095 | if (irel->r_type == R_SH_ALIGN | |
1096 | && irel->r_vaddr - sec->vma > addr | |
1097 | && count < (1 << irel->r_offset)) | |
1098 | { | |
1099 | irelalign = irel; | |
1100 | toaddr = irel->r_vaddr - sec->vma; | |
1101 | break; | |
1102 | } | |
1103 | } | |
1104 | ||
1105 | /* Actually delete the bytes. */ | |
1106 | memmove (contents + addr, contents + addr + count, | |
1107 | (size_t) (toaddr - addr - count)); | |
1108 | if (irelalign == NULL) | |
1109 | sec->size -= count; | |
1110 | else | |
1111 | { | |
1112 | int i; | |
1113 | ||
1114 | #define NOP_OPCODE (0x0009) | |
1115 | ||
1116 | BFD_ASSERT ((count & 1) == 0); | |
1117 | for (i = 0; i < count; i += 2) | |
1118 | bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i); | |
1119 | } | |
1120 | ||
1121 | /* Adjust all the relocs. */ | |
1122 | for (irel = coff_section_data (abfd, sec)->relocs; irel < irelend; irel++) | |
1123 | { | |
1124 | bfd_vma nraddr, stop; | |
1125 | bfd_vma start = 0; | |
1126 | int insn = 0; | |
1127 | struct internal_syment sym; | |
1128 | int off, adjust, oinsn; | |
1129 | bfd_signed_vma voff = 0; | |
1130 | bfd_boolean overflow; | |
1131 | ||
1132 | /* Get the new reloc address. */ | |
1133 | nraddr = irel->r_vaddr - sec->vma; | |
1134 | if ((irel->r_vaddr - sec->vma > addr | |
1135 | && irel->r_vaddr - sec->vma < toaddr) | |
1136 | || (irel->r_type == R_SH_ALIGN | |
1137 | && irel->r_vaddr - sec->vma == toaddr)) | |
1138 | nraddr -= count; | |
1139 | ||
1140 | /* See if this reloc was for the bytes we have deleted, in which | |
1141 | case we no longer care about it. Don't delete relocs which | |
1142 | represent addresses, though. */ | |
1143 | if (irel->r_vaddr - sec->vma >= addr | |
1144 | && irel->r_vaddr - sec->vma < addr + count | |
1145 | && irel->r_type != R_SH_ALIGN | |
1146 | && irel->r_type != R_SH_CODE | |
1147 | && irel->r_type != R_SH_DATA | |
1148 | && irel->r_type != R_SH_LABEL) | |
1149 | irel->r_type = R_SH_UNUSED; | |
1150 | ||
1151 | /* If this is a PC relative reloc, see if the range it covers | |
1152 | includes the bytes we have deleted. */ | |
1153 | switch (irel->r_type) | |
1154 | { | |
1155 | default: | |
1156 | break; | |
1157 | ||
1158 | case R_SH_PCDISP8BY2: | |
1159 | case R_SH_PCDISP: | |
1160 | case R_SH_PCRELIMM8BY2: | |
1161 | case R_SH_PCRELIMM8BY4: | |
1162 | start = irel->r_vaddr - sec->vma; | |
1163 | insn = bfd_get_16 (abfd, contents + nraddr); | |
1164 | break; | |
1165 | } | |
1166 | ||
1167 | switch (irel->r_type) | |
1168 | { | |
1169 | default: | |
1170 | start = stop = addr; | |
1171 | break; | |
1172 | ||
1173 | case R_SH_IMM32: | |
1174 | #ifdef COFF_WITH_PE | |
1175 | case R_SH_IMM32CE: | |
1176 | case R_SH_IMAGEBASE: | |
1177 | #endif | |
1178 | /* If this reloc is against a symbol defined in this | |
1179 | section, and the symbol will not be adjusted below, we | |
1180 | must check the addend to see it will put the value in | |
1181 | range to be adjusted, and hence must be changed. */ | |
1182 | bfd_coff_swap_sym_in (abfd, | |
1183 | ((bfd_byte *) obj_coff_external_syms (abfd) | |
1184 | + (irel->r_symndx | |
1185 | * bfd_coff_symesz (abfd))), | |
1186 | &sym); | |
1187 | if (sym.n_sclass != C_EXT | |
1188 | && sym.n_scnum == sec->target_index | |
1189 | && ((bfd_vma) sym.n_value <= addr | |
1190 | || (bfd_vma) sym.n_value >= toaddr)) | |
1191 | { | |
1192 | bfd_vma val; | |
1193 | ||
1194 | val = bfd_get_32 (abfd, contents + nraddr); | |
1195 | val += sym.n_value; | |
1196 | if (val > addr && val < toaddr) | |
1197 | bfd_put_32 (abfd, val - count, contents + nraddr); | |
1198 | } | |
1199 | start = stop = addr; | |
1200 | break; | |
1201 | ||
1202 | case R_SH_PCDISP8BY2: | |
1203 | off = insn & 0xff; | |
1204 | if (off & 0x80) | |
1205 | off -= 0x100; | |
1206 | stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); | |
1207 | break; | |
1208 | ||
1209 | case R_SH_PCDISP: | |
1210 | bfd_coff_swap_sym_in (abfd, | |
1211 | ((bfd_byte *) obj_coff_external_syms (abfd) | |
1212 | + (irel->r_symndx | |
1213 | * bfd_coff_symesz (abfd))), | |
1214 | &sym); | |
1215 | if (sym.n_sclass == C_EXT) | |
1216 | start = stop = addr; | |
1217 | else | |
1218 | { | |
1219 | off = insn & 0xfff; | |
1220 | if (off & 0x800) | |
1221 | off -= 0x1000; | |
1222 | stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); | |
1223 | } | |
1224 | break; | |
1225 | ||
1226 | case R_SH_PCRELIMM8BY2: | |
1227 | off = insn & 0xff; | |
1228 | stop = start + 4 + off * 2; | |
1229 | break; | |
1230 | ||
1231 | case R_SH_PCRELIMM8BY4: | |
1232 | off = insn & 0xff; | |
1233 | stop = (start &~ (bfd_vma) 3) + 4 + off * 4; | |
1234 | break; | |
1235 | ||
1236 | case R_SH_SWITCH8: | |
1237 | case R_SH_SWITCH16: | |
1238 | case R_SH_SWITCH32: | |
1239 | /* These relocs types represent | |
1240 | .word L2-L1 | |
1241 | The r_offset field holds the difference between the reloc | |
1242 | address and L1. That is the start of the reloc, and | |
1243 | adding in the contents gives us the top. We must adjust | |
1244 | both the r_offset field and the section contents. */ | |
1245 | ||
1246 | start = irel->r_vaddr - sec->vma; | |
1247 | stop = (bfd_vma) ((bfd_signed_vma) start - (long) irel->r_offset); | |
1248 | ||
1249 | if (start > addr | |
1250 | && start < toaddr | |
1251 | && (stop <= addr || stop >= toaddr)) | |
1252 | irel->r_offset += count; | |
1253 | else if (stop > addr | |
1254 | && stop < toaddr | |
1255 | && (start <= addr || start >= toaddr)) | |
1256 | irel->r_offset -= count; | |
1257 | ||
1258 | start = stop; | |
1259 | ||
1260 | if (irel->r_type == R_SH_SWITCH16) | |
1261 | voff = bfd_get_signed_16 (abfd, contents + nraddr); | |
1262 | else if (irel->r_type == R_SH_SWITCH8) | |
1263 | voff = bfd_get_8 (abfd, contents + nraddr); | |
1264 | else | |
1265 | voff = bfd_get_signed_32 (abfd, contents + nraddr); | |
1266 | stop = (bfd_vma) ((bfd_signed_vma) start + voff); | |
1267 | ||
1268 | break; | |
1269 | ||
1270 | case R_SH_USES: | |
1271 | start = irel->r_vaddr - sec->vma; | |
1272 | stop = (bfd_vma) ((bfd_signed_vma) start | |
1273 | + (long) irel->r_offset | |
1274 | + 4); | |
1275 | break; | |
1276 | } | |
1277 | ||
1278 | if (start > addr | |
1279 | && start < toaddr | |
1280 | && (stop <= addr || stop >= toaddr)) | |
1281 | adjust = count; | |
1282 | else if (stop > addr | |
1283 | && stop < toaddr | |
1284 | && (start <= addr || start >= toaddr)) | |
1285 | adjust = - count; | |
1286 | else | |
1287 | adjust = 0; | |
1288 | ||
1289 | if (adjust != 0) | |
1290 | { | |
1291 | oinsn = insn; | |
1292 | overflow = FALSE; | |
1293 | switch (irel->r_type) | |
1294 | { | |
1295 | default: | |
1296 | abort (); | |
1297 | break; | |
1298 | ||
1299 | case R_SH_PCDISP8BY2: | |
1300 | case R_SH_PCRELIMM8BY2: | |
1301 | insn += adjust / 2; | |
1302 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
1303 | overflow = TRUE; | |
1304 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); | |
1305 | break; | |
1306 | ||
1307 | case R_SH_PCDISP: | |
1308 | insn += adjust / 2; | |
1309 | if ((oinsn & 0xf000) != (insn & 0xf000)) | |
1310 | overflow = TRUE; | |
1311 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); | |
1312 | break; | |
1313 | ||
1314 | case R_SH_PCRELIMM8BY4: | |
1315 | BFD_ASSERT (adjust == count || count >= 4); | |
1316 | if (count >= 4) | |
1317 | insn += adjust / 4; | |
1318 | else | |
1319 | { | |
1320 | if ((irel->r_vaddr & 3) == 0) | |
1321 | ++insn; | |
1322 | } | |
1323 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
1324 | overflow = TRUE; | |
1325 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); | |
1326 | break; | |
1327 | ||
1328 | case R_SH_SWITCH8: | |
1329 | voff += adjust; | |
1330 | if (voff < 0 || voff >= 0xff) | |
1331 | overflow = TRUE; | |
1332 | bfd_put_8 (abfd, (bfd_vma) voff, contents + nraddr); | |
1333 | break; | |
1334 | ||
1335 | case R_SH_SWITCH16: | |
1336 | voff += adjust; | |
1337 | if (voff < - 0x8000 || voff >= 0x8000) | |
1338 | overflow = TRUE; | |
1339 | bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr); | |
1340 | break; | |
1341 | ||
1342 | case R_SH_SWITCH32: | |
1343 | voff += adjust; | |
1344 | bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr); | |
1345 | break; | |
1346 | ||
1347 | case R_SH_USES: | |
1348 | irel->r_offset += adjust; | |
1349 | break; | |
1350 | } | |
1351 | ||
1352 | if (overflow) | |
1353 | { | |
1354 | _bfd_error_handler | |
1355 | /* xgettext: c-format */ | |
1356 | (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"), | |
1357 | abfd, (uint64_t) irel->r_vaddr); | |
1358 | bfd_set_error (bfd_error_bad_value); | |
1359 | return FALSE; | |
1360 | } | |
1361 | } | |
1362 | ||
1363 | irel->r_vaddr = nraddr + sec->vma; | |
1364 | } | |
1365 | ||
1366 | /* Look through all the other sections. If there contain any IMM32 | |
1367 | relocs against internal symbols which we are not going to adjust | |
1368 | below, we may need to adjust the addends. */ | |
1369 | for (o = abfd->sections; o != NULL; o = o->next) | |
1370 | { | |
1371 | struct internal_reloc *internal_relocs; | |
1372 | struct internal_reloc *irelscan, *irelscanend; | |
1373 | bfd_byte *ocontents; | |
1374 | ||
1375 | if (o == sec | |
1376 | || (o->flags & SEC_RELOC) == 0 | |
1377 | || o->reloc_count == 0) | |
1378 | continue; | |
1379 | ||
1380 | /* We always cache the relocs. Perhaps, if info->keep_memory is | |
1381 | FALSE, we should free them, if we are permitted to, when we | |
1382 | leave sh_coff_relax_section. */ | |
1383 | internal_relocs = (_bfd_coff_read_internal_relocs | |
1384 | (abfd, o, TRUE, (bfd_byte *) NULL, FALSE, | |
1385 | (struct internal_reloc *) NULL)); | |
1386 | if (internal_relocs == NULL) | |
1387 | return FALSE; | |
1388 | ||
1389 | ocontents = NULL; | |
1390 | irelscanend = internal_relocs + o->reloc_count; | |
1391 | for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++) | |
1392 | { | |
1393 | struct internal_syment sym; | |
1394 | ||
1395 | #ifdef COFF_WITH_PE | |
1396 | if (irelscan->r_type != R_SH_IMM32 | |
1397 | && irelscan->r_type != R_SH_IMAGEBASE | |
1398 | && irelscan->r_type != R_SH_IMM32CE) | |
1399 | #else | |
1400 | if (irelscan->r_type != R_SH_IMM32) | |
1401 | #endif | |
1402 | continue; | |
1403 | ||
1404 | bfd_coff_swap_sym_in (abfd, | |
1405 | ((bfd_byte *) obj_coff_external_syms (abfd) | |
1406 | + (irelscan->r_symndx | |
1407 | * bfd_coff_symesz (abfd))), | |
1408 | &sym); | |
1409 | if (sym.n_sclass != C_EXT | |
1410 | && sym.n_scnum == sec->target_index | |
1411 | && ((bfd_vma) sym.n_value <= addr | |
1412 | || (bfd_vma) sym.n_value >= toaddr)) | |
1413 | { | |
1414 | bfd_vma val; | |
1415 | ||
1416 | if (ocontents == NULL) | |
1417 | { | |
1418 | if (coff_section_data (abfd, o)->contents != NULL) | |
1419 | ocontents = coff_section_data (abfd, o)->contents; | |
1420 | else | |
1421 | { | |
1422 | if (!bfd_malloc_and_get_section (abfd, o, &ocontents)) | |
1423 | return FALSE; | |
1424 | /* We always cache the section contents. | |
1425 | Perhaps, if info->keep_memory is FALSE, we | |
1426 | should free them, if we are permitted to, | |
1427 | when we leave sh_coff_relax_section. */ | |
1428 | coff_section_data (abfd, o)->contents = ocontents; | |
1429 | } | |
1430 | } | |
1431 | ||
1432 | val = bfd_get_32 (abfd, ocontents + irelscan->r_vaddr - o->vma); | |
1433 | val += sym.n_value; | |
1434 | if (val > addr && val < toaddr) | |
1435 | bfd_put_32 (abfd, val - count, | |
1436 | ocontents + irelscan->r_vaddr - o->vma); | |
1437 | ||
1438 | coff_section_data (abfd, o)->keep_contents = TRUE; | |
1439 | } | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | /* Adjusting the internal symbols will not work if something has | |
1444 | already retrieved the generic symbols. It would be possible to | |
1445 | make this work by adjusting the generic symbols at the same time. | |
1446 | However, this case should not arise in normal usage. */ | |
1447 | if (obj_symbols (abfd) != NULL | |
1448 | || obj_raw_syments (abfd) != NULL) | |
1449 | { | |
1450 | _bfd_error_handler | |
1451 | (_("%pB: fatal: generic symbols retrieved before relaxing"), abfd); | |
1452 | bfd_set_error (bfd_error_invalid_operation); | |
1453 | return FALSE; | |
1454 | } | |
1455 | ||
1456 | /* Adjust all the symbols. */ | |
1457 | sym_hash = obj_coff_sym_hashes (abfd); | |
1458 | symesz = bfd_coff_symesz (abfd); | |
1459 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
1460 | esymend = esym + obj_raw_syment_count (abfd) * symesz; | |
1461 | while (esym < esymend) | |
1462 | { | |
1463 | struct internal_syment isym; | |
1464 | ||
1465 | bfd_coff_swap_sym_in (abfd, esym, &isym); | |
1466 | ||
1467 | if (isym.n_scnum == sec->target_index | |
1468 | && (bfd_vma) isym.n_value > addr | |
1469 | && (bfd_vma) isym.n_value < toaddr) | |
1470 | { | |
1471 | isym.n_value -= count; | |
1472 | ||
1473 | bfd_coff_swap_sym_out (abfd, &isym, esym); | |
1474 | ||
1475 | if (*sym_hash != NULL) | |
1476 | { | |
1477 | BFD_ASSERT ((*sym_hash)->root.type == bfd_link_hash_defined | |
1478 | || (*sym_hash)->root.type == bfd_link_hash_defweak); | |
1479 | BFD_ASSERT ((*sym_hash)->root.u.def.value >= addr | |
1480 | && (*sym_hash)->root.u.def.value < toaddr); | |
1481 | (*sym_hash)->root.u.def.value -= count; | |
1482 | } | |
1483 | } | |
1484 | ||
1485 | esym += (isym.n_numaux + 1) * symesz; | |
1486 | sym_hash += isym.n_numaux + 1; | |
1487 | } | |
1488 | ||
1489 | /* See if we can move the ALIGN reloc forward. We have adjusted | |
1490 | r_vaddr for it already. */ | |
1491 | if (irelalign != NULL) | |
1492 | { | |
1493 | bfd_vma alignto, alignaddr; | |
1494 | ||
1495 | alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_offset); | |
1496 | alignaddr = BFD_ALIGN (irelalign->r_vaddr - sec->vma, | |
1497 | 1 << irelalign->r_offset); | |
1498 | if (alignto != alignaddr) | |
1499 | { | |
1500 | /* Tail recursion. */ | |
1501 | return sh_relax_delete_bytes (abfd, sec, alignaddr, | |
1502 | (int) (alignto - alignaddr)); | |
1503 | } | |
1504 | } | |
1505 | ||
1506 | return TRUE; | |
1507 | } | |
1508 | \f | |
1509 | /* This is yet another version of the SH opcode table, used to rapidly | |
1510 | get information about a particular instruction. */ | |
1511 | ||
1512 | /* The opcode map is represented by an array of these structures. The | |
1513 | array is indexed by the high order four bits in the instruction. */ | |
1514 | ||
1515 | struct sh_major_opcode | |
1516 | { | |
1517 | /* A pointer to the instruction list. This is an array which | |
1518 | contains all the instructions with this major opcode. */ | |
1519 | const struct sh_minor_opcode *minor_opcodes; | |
1520 | /* The number of elements in minor_opcodes. */ | |
1521 | unsigned short count; | |
1522 | }; | |
1523 | ||
1524 | /* This structure holds information for a set of SH opcodes. The | |
1525 | instruction code is anded with the mask value, and the resulting | |
1526 | value is used to search the order opcode list. */ | |
1527 | ||
1528 | struct sh_minor_opcode | |
1529 | { | |
1530 | /* The sorted opcode list. */ | |
1531 | const struct sh_opcode *opcodes; | |
1532 | /* The number of elements in opcodes. */ | |
1533 | unsigned short count; | |
1534 | /* The mask value to use when searching the opcode list. */ | |
1535 | unsigned short mask; | |
1536 | }; | |
1537 | ||
1538 | /* This structure holds information for an SH instruction. An array | |
1539 | of these structures is sorted in order by opcode. */ | |
1540 | ||
1541 | struct sh_opcode | |
1542 | { | |
1543 | /* The code for this instruction, after it has been anded with the | |
1544 | mask value in the sh_major_opcode structure. */ | |
1545 | unsigned short opcode; | |
1546 | /* Flags for this instruction. */ | |
1547 | unsigned long flags; | |
1548 | }; | |
1549 | ||
1550 | /* Flag which appear in the sh_opcode structure. */ | |
1551 | ||
1552 | /* This instruction loads a value from memory. */ | |
1553 | #define LOAD (0x1) | |
1554 | ||
1555 | /* This instruction stores a value to memory. */ | |
1556 | #define STORE (0x2) | |
1557 | ||
1558 | /* This instruction is a branch. */ | |
1559 | #define BRANCH (0x4) | |
1560 | ||
1561 | /* This instruction has a delay slot. */ | |
1562 | #define DELAY (0x8) | |
1563 | ||
1564 | /* This instruction uses the value in the register in the field at | |
1565 | mask 0x0f00 of the instruction. */ | |
1566 | #define USES1 (0x10) | |
1567 | #define USES1_REG(x) ((x & 0x0f00) >> 8) | |
1568 | ||
1569 | /* This instruction uses the value in the register in the field at | |
1570 | mask 0x00f0 of the instruction. */ | |
1571 | #define USES2 (0x20) | |
1572 | #define USES2_REG(x) ((x & 0x00f0) >> 4) | |
1573 | ||
1574 | /* This instruction uses the value in register 0. */ | |
1575 | #define USESR0 (0x40) | |
1576 | ||
1577 | /* This instruction sets the value in the register in the field at | |
1578 | mask 0x0f00 of the instruction. */ | |
1579 | #define SETS1 (0x80) | |
1580 | #define SETS1_REG(x) ((x & 0x0f00) >> 8) | |
1581 | ||
1582 | /* This instruction sets the value in the register in the field at | |
1583 | mask 0x00f0 of the instruction. */ | |
1584 | #define SETS2 (0x100) | |
1585 | #define SETS2_REG(x) ((x & 0x00f0) >> 4) | |
1586 | ||
1587 | /* This instruction sets register 0. */ | |
1588 | #define SETSR0 (0x200) | |
1589 | ||
1590 | /* This instruction sets a special register. */ | |
1591 | #define SETSSP (0x400) | |
1592 | ||
1593 | /* This instruction uses a special register. */ | |
1594 | #define USESSP (0x800) | |
1595 | ||
1596 | /* This instruction uses the floating point register in the field at | |
1597 | mask 0x0f00 of the instruction. */ | |
1598 | #define USESF1 (0x1000) | |
1599 | #define USESF1_REG(x) ((x & 0x0f00) >> 8) | |
1600 | ||
1601 | /* This instruction uses the floating point register in the field at | |
1602 | mask 0x00f0 of the instruction. */ | |
1603 | #define USESF2 (0x2000) | |
1604 | #define USESF2_REG(x) ((x & 0x00f0) >> 4) | |
1605 | ||
1606 | /* This instruction uses floating point register 0. */ | |
1607 | #define USESF0 (0x4000) | |
1608 | ||
1609 | /* This instruction sets the floating point register in the field at | |
1610 | mask 0x0f00 of the instruction. */ | |
1611 | #define SETSF1 (0x8000) | |
1612 | #define SETSF1_REG(x) ((x & 0x0f00) >> 8) | |
1613 | ||
1614 | #define USESAS (0x10000) | |
1615 | #define USESAS_REG(x) (((((x) >> 8) - 2) & 3) + 2) | |
1616 | #define USESR8 (0x20000) | |
1617 | #define SETSAS (0x40000) | |
1618 | #define SETSAS_REG(x) USESAS_REG (x) | |
1619 | ||
1620 | #define MAP(a) a, sizeof a / sizeof a[0] | |
1621 | ||
1622 | #ifndef COFF_IMAGE_WITH_PE | |
1623 | ||
1624 | /* The opcode maps. */ | |
1625 | ||
1626 | static const struct sh_opcode sh_opcode00[] = | |
1627 | { | |
1628 | { 0x0008, SETSSP }, /* clrt */ | |
1629 | { 0x0009, 0 }, /* nop */ | |
1630 | { 0x000b, BRANCH | DELAY | USESSP }, /* rts */ | |
1631 | { 0x0018, SETSSP }, /* sett */ | |
1632 | { 0x0019, SETSSP }, /* div0u */ | |
1633 | { 0x001b, 0 }, /* sleep */ | |
1634 | { 0x0028, SETSSP }, /* clrmac */ | |
1635 | { 0x002b, BRANCH | DELAY | SETSSP }, /* rte */ | |
1636 | { 0x0038, USESSP | SETSSP }, /* ldtlb */ | |
1637 | { 0x0048, SETSSP }, /* clrs */ | |
1638 | { 0x0058, SETSSP } /* sets */ | |
1639 | }; | |
1640 | ||
1641 | static const struct sh_opcode sh_opcode01[] = | |
1642 | { | |
1643 | { 0x0003, BRANCH | DELAY | USES1 | SETSSP }, /* bsrf rn */ | |
1644 | { 0x000a, SETS1 | USESSP }, /* sts mach,rn */ | |
1645 | { 0x001a, SETS1 | USESSP }, /* sts macl,rn */ | |
1646 | { 0x0023, BRANCH | DELAY | USES1 }, /* braf rn */ | |
1647 | { 0x0029, SETS1 | USESSP }, /* movt rn */ | |
1648 | { 0x002a, SETS1 | USESSP }, /* sts pr,rn */ | |
1649 | { 0x005a, SETS1 | USESSP }, /* sts fpul,rn */ | |
1650 | { 0x006a, SETS1 | USESSP }, /* sts fpscr,rn / sts dsr,rn */ | |
1651 | { 0x0083, LOAD | USES1 }, /* pref @rn */ | |
1652 | { 0x007a, SETS1 | USESSP }, /* sts a0,rn */ | |
1653 | { 0x008a, SETS1 | USESSP }, /* sts x0,rn */ | |
1654 | { 0x009a, SETS1 | USESSP }, /* sts x1,rn */ | |
1655 | { 0x00aa, SETS1 | USESSP }, /* sts y0,rn */ | |
1656 | { 0x00ba, SETS1 | USESSP } /* sts y1,rn */ | |
1657 | }; | |
1658 | ||
1659 | static const struct sh_opcode sh_opcode02[] = | |
1660 | { | |
1661 | { 0x0002, SETS1 | USESSP }, /* stc <special_reg>,rn */ | |
1662 | { 0x0004, STORE | USES1 | USES2 | USESR0 }, /* mov.b rm,@(r0,rn) */ | |
1663 | { 0x0005, STORE | USES1 | USES2 | USESR0 }, /* mov.w rm,@(r0,rn) */ | |
1664 | { 0x0006, STORE | USES1 | USES2 | USESR0 }, /* mov.l rm,@(r0,rn) */ | |
1665 | { 0x0007, SETSSP | USES1 | USES2 }, /* mul.l rm,rn */ | |
1666 | { 0x000c, LOAD | SETS1 | USES2 | USESR0 }, /* mov.b @(r0,rm),rn */ | |
1667 | { 0x000d, LOAD | SETS1 | USES2 | USESR0 }, /* mov.w @(r0,rm),rn */ | |
1668 | { 0x000e, LOAD | SETS1 | USES2 | USESR0 }, /* mov.l @(r0,rm),rn */ | |
1669 | { 0x000f, LOAD|SETS1|SETS2|SETSSP|USES1|USES2|USESSP }, /* mac.l @rm+,@rn+ */ | |
1670 | }; | |
1671 | ||
1672 | static const struct sh_minor_opcode sh_opcode0[] = | |
1673 | { | |
1674 | { MAP (sh_opcode00), 0xffff }, | |
1675 | { MAP (sh_opcode01), 0xf0ff }, | |
1676 | { MAP (sh_opcode02), 0xf00f } | |
1677 | }; | |
1678 | ||
1679 | static const struct sh_opcode sh_opcode10[] = | |
1680 | { | |
1681 | { 0x1000, STORE | USES1 | USES2 } /* mov.l rm,@(disp,rn) */ | |
1682 | }; | |
1683 | ||
1684 | static const struct sh_minor_opcode sh_opcode1[] = | |
1685 | { | |
1686 | { MAP (sh_opcode10), 0xf000 } | |
1687 | }; | |
1688 | ||
1689 | static const struct sh_opcode sh_opcode20[] = | |
1690 | { | |
1691 | { 0x2000, STORE | USES1 | USES2 }, /* mov.b rm,@rn */ | |
1692 | { 0x2001, STORE | USES1 | USES2 }, /* mov.w rm,@rn */ | |
1693 | { 0x2002, STORE | USES1 | USES2 }, /* mov.l rm,@rn */ | |
1694 | { 0x2004, STORE | SETS1 | USES1 | USES2 }, /* mov.b rm,@-rn */ | |
1695 | { 0x2005, STORE | SETS1 | USES1 | USES2 }, /* mov.w rm,@-rn */ | |
1696 | { 0x2006, STORE | SETS1 | USES1 | USES2 }, /* mov.l rm,@-rn */ | |
1697 | { 0x2007, SETSSP | USES1 | USES2 | USESSP }, /* div0s */ | |
1698 | { 0x2008, SETSSP | USES1 | USES2 }, /* tst rm,rn */ | |
1699 | { 0x2009, SETS1 | USES1 | USES2 }, /* and rm,rn */ | |
1700 | { 0x200a, SETS1 | USES1 | USES2 }, /* xor rm,rn */ | |
1701 | { 0x200b, SETS1 | USES1 | USES2 }, /* or rm,rn */ | |
1702 | { 0x200c, SETSSP | USES1 | USES2 }, /* cmp/str rm,rn */ | |
1703 | { 0x200d, SETS1 | USES1 | USES2 }, /* xtrct rm,rn */ | |
1704 | { 0x200e, SETSSP | USES1 | USES2 }, /* mulu.w rm,rn */ | |
1705 | { 0x200f, SETSSP | USES1 | USES2 } /* muls.w rm,rn */ | |
1706 | }; | |
1707 | ||
1708 | static const struct sh_minor_opcode sh_opcode2[] = | |
1709 | { | |
1710 | { MAP (sh_opcode20), 0xf00f } | |
1711 | }; | |
1712 | ||
1713 | static const struct sh_opcode sh_opcode30[] = | |
1714 | { | |
1715 | { 0x3000, SETSSP | USES1 | USES2 }, /* cmp/eq rm,rn */ | |
1716 | { 0x3002, SETSSP | USES1 | USES2 }, /* cmp/hs rm,rn */ | |
1717 | { 0x3003, SETSSP | USES1 | USES2 }, /* cmp/ge rm,rn */ | |
1718 | { 0x3004, SETSSP | USESSP | USES1 | USES2 }, /* div1 rm,rn */ | |
1719 | { 0x3005, SETSSP | USES1 | USES2 }, /* dmulu.l rm,rn */ | |
1720 | { 0x3006, SETSSP | USES1 | USES2 }, /* cmp/hi rm,rn */ | |
1721 | { 0x3007, SETSSP | USES1 | USES2 }, /* cmp/gt rm,rn */ | |
1722 | { 0x3008, SETS1 | USES1 | USES2 }, /* sub rm,rn */ | |
1723 | { 0x300a, SETS1 | SETSSP | USES1 | USES2 | USESSP }, /* subc rm,rn */ | |
1724 | { 0x300b, SETS1 | SETSSP | USES1 | USES2 }, /* subv rm,rn */ | |
1725 | { 0x300c, SETS1 | USES1 | USES2 }, /* add rm,rn */ | |
1726 | { 0x300d, SETSSP | USES1 | USES2 }, /* dmuls.l rm,rn */ | |
1727 | { 0x300e, SETS1 | SETSSP | USES1 | USES2 | USESSP }, /* addc rm,rn */ | |
1728 | { 0x300f, SETS1 | SETSSP | USES1 | USES2 } /* addv rm,rn */ | |
1729 | }; | |
1730 | ||
1731 | static const struct sh_minor_opcode sh_opcode3[] = | |
1732 | { | |
1733 | { MAP (sh_opcode30), 0xf00f } | |
1734 | }; | |
1735 | ||
1736 | static const struct sh_opcode sh_opcode40[] = | |
1737 | { | |
1738 | { 0x4000, SETS1 | SETSSP | USES1 }, /* shll rn */ | |
1739 | { 0x4001, SETS1 | SETSSP | USES1 }, /* shlr rn */ | |
1740 | { 0x4002, STORE | SETS1 | USES1 | USESSP }, /* sts.l mach,@-rn */ | |
1741 | { 0x4004, SETS1 | SETSSP | USES1 }, /* rotl rn */ | |
1742 | { 0x4005, SETS1 | SETSSP | USES1 }, /* rotr rn */ | |
1743 | { 0x4006, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,mach */ | |
1744 | { 0x4008, SETS1 | USES1 }, /* shll2 rn */ | |
1745 | { 0x4009, SETS1 | USES1 }, /* shlr2 rn */ | |
1746 | { 0x400a, SETSSP | USES1 }, /* lds rm,mach */ | |
1747 | { 0x400b, BRANCH | DELAY | USES1 }, /* jsr @rn */ | |
1748 | { 0x4010, SETS1 | SETSSP | USES1 }, /* dt rn */ | |
1749 | { 0x4011, SETSSP | USES1 }, /* cmp/pz rn */ | |
1750 | { 0x4012, STORE | SETS1 | USES1 | USESSP }, /* sts.l macl,@-rn */ | |
1751 | { 0x4014, SETSSP | USES1 }, /* setrc rm */ | |
1752 | { 0x4015, SETSSP | USES1 }, /* cmp/pl rn */ | |
1753 | { 0x4016, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,macl */ | |
1754 | { 0x4018, SETS1 | USES1 }, /* shll8 rn */ | |
1755 | { 0x4019, SETS1 | USES1 }, /* shlr8 rn */ | |
1756 | { 0x401a, SETSSP | USES1 }, /* lds rm,macl */ | |
1757 | { 0x401b, LOAD | SETSSP | USES1 }, /* tas.b @rn */ | |
1758 | { 0x4020, SETS1 | SETSSP | USES1 }, /* shal rn */ | |
1759 | { 0x4021, SETS1 | SETSSP | USES1 }, /* shar rn */ | |
1760 | { 0x4022, STORE | SETS1 | USES1 | USESSP }, /* sts.l pr,@-rn */ | |
1761 | { 0x4024, SETS1 | SETSSP | USES1 | USESSP }, /* rotcl rn */ | |
1762 | { 0x4025, SETS1 | SETSSP | USES1 | USESSP }, /* rotcr rn */ | |
1763 | { 0x4026, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,pr */ | |
1764 | { 0x4028, SETS1 | USES1 }, /* shll16 rn */ | |
1765 | { 0x4029, SETS1 | USES1 }, /* shlr16 rn */ | |
1766 | { 0x402a, SETSSP | USES1 }, /* lds rm,pr */ | |
1767 | { 0x402b, BRANCH | DELAY | USES1 }, /* jmp @rn */ | |
1768 | { 0x4052, STORE | SETS1 | USES1 | USESSP }, /* sts.l fpul,@-rn */ | |
1769 | { 0x4056, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,fpul */ | |
1770 | { 0x405a, SETSSP | USES1 }, /* lds.l rm,fpul */ | |
1771 | { 0x4062, STORE | SETS1 | USES1 | USESSP }, /* sts.l fpscr / dsr,@-rn */ | |
1772 | { 0x4066, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,fpscr / dsr */ | |
1773 | { 0x406a, SETSSP | USES1 }, /* lds rm,fpscr / lds rm,dsr */ | |
1774 | { 0x4072, STORE | SETS1 | USES1 | USESSP }, /* sts.l a0,@-rn */ | |
1775 | { 0x4076, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,a0 */ | |
1776 | { 0x407a, SETSSP | USES1 }, /* lds.l rm,a0 */ | |
1777 | { 0x4082, STORE | SETS1 | USES1 | USESSP }, /* sts.l x0,@-rn */ | |
1778 | { 0x4086, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,x0 */ | |
1779 | { 0x408a, SETSSP | USES1 }, /* lds.l rm,x0 */ | |
1780 | { 0x4092, STORE | SETS1 | USES1 | USESSP }, /* sts.l x1,@-rn */ | |
1781 | { 0x4096, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,x1 */ | |
1782 | { 0x409a, SETSSP | USES1 }, /* lds.l rm,x1 */ | |
1783 | { 0x40a2, STORE | SETS1 | USES1 | USESSP }, /* sts.l y0,@-rn */ | |
1784 | { 0x40a6, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,y0 */ | |
1785 | { 0x40aa, SETSSP | USES1 }, /* lds.l rm,y0 */ | |
1786 | { 0x40b2, STORE | SETS1 | USES1 | USESSP }, /* sts.l y1,@-rn */ | |
1787 | { 0x40b6, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,y1 */ | |
1788 | { 0x40ba, SETSSP | USES1 } /* lds.l rm,y1 */ | |
1789 | }; | |
1790 | ||
1791 | static const struct sh_opcode sh_opcode41[] = | |
1792 | { | |
1793 | { 0x4003, STORE | SETS1 | USES1 | USESSP }, /* stc.l <special_reg>,@-rn */ | |
1794 | { 0x4007, LOAD | SETS1 | SETSSP | USES1 }, /* ldc.l @rm+,<special_reg> */ | |
1795 | { 0x400c, SETS1 | USES1 | USES2 }, /* shad rm,rn */ | |
1796 | { 0x400d, SETS1 | USES1 | USES2 }, /* shld rm,rn */ | |
1797 | { 0x400e, SETSSP | USES1 }, /* ldc rm,<special_reg> */ | |
1798 | { 0x400f, LOAD|SETS1|SETS2|SETSSP|USES1|USES2|USESSP }, /* mac.w @rm+,@rn+ */ | |
1799 | }; | |
1800 | ||
1801 | static const struct sh_minor_opcode sh_opcode4[] = | |
1802 | { | |
1803 | { MAP (sh_opcode40), 0xf0ff }, | |
1804 | { MAP (sh_opcode41), 0xf00f } | |
1805 | }; | |
1806 | ||
1807 | static const struct sh_opcode sh_opcode50[] = | |
1808 | { | |
1809 | { 0x5000, LOAD | SETS1 | USES2 } /* mov.l @(disp,rm),rn */ | |
1810 | }; | |
1811 | ||
1812 | static const struct sh_minor_opcode sh_opcode5[] = | |
1813 | { | |
1814 | { MAP (sh_opcode50), 0xf000 } | |
1815 | }; | |
1816 | ||
1817 | static const struct sh_opcode sh_opcode60[] = | |
1818 | { | |
1819 | { 0x6000, LOAD | SETS1 | USES2 }, /* mov.b @rm,rn */ | |
1820 | { 0x6001, LOAD | SETS1 | USES2 }, /* mov.w @rm,rn */ | |
1821 | { 0x6002, LOAD | SETS1 | USES2 }, /* mov.l @rm,rn */ | |
1822 | { 0x6003, SETS1 | USES2 }, /* mov rm,rn */ | |
1823 | { 0x6004, LOAD | SETS1 | SETS2 | USES2 }, /* mov.b @rm+,rn */ | |
1824 | { 0x6005, LOAD | SETS1 | SETS2 | USES2 }, /* mov.w @rm+,rn */ | |
1825 | { 0x6006, LOAD | SETS1 | SETS2 | USES2 }, /* mov.l @rm+,rn */ | |
1826 | { 0x6007, SETS1 | USES2 }, /* not rm,rn */ | |
1827 | { 0x6008, SETS1 | USES2 }, /* swap.b rm,rn */ | |
1828 | { 0x6009, SETS1 | USES2 }, /* swap.w rm,rn */ | |
1829 | { 0x600a, SETS1 | SETSSP | USES2 | USESSP }, /* negc rm,rn */ | |
1830 | { 0x600b, SETS1 | USES2 }, /* neg rm,rn */ | |
1831 | { 0x600c, SETS1 | USES2 }, /* extu.b rm,rn */ | |
1832 | { 0x600d, SETS1 | USES2 }, /* extu.w rm,rn */ | |
1833 | { 0x600e, SETS1 | USES2 }, /* exts.b rm,rn */ | |
1834 | { 0x600f, SETS1 | USES2 } /* exts.w rm,rn */ | |
1835 | }; | |
1836 | ||
1837 | static const struct sh_minor_opcode sh_opcode6[] = | |
1838 | { | |
1839 | { MAP (sh_opcode60), 0xf00f } | |
1840 | }; | |
1841 | ||
1842 | static const struct sh_opcode sh_opcode70[] = | |
1843 | { | |
1844 | { 0x7000, SETS1 | USES1 } /* add #imm,rn */ | |
1845 | }; | |
1846 | ||
1847 | static const struct sh_minor_opcode sh_opcode7[] = | |
1848 | { | |
1849 | { MAP (sh_opcode70), 0xf000 } | |
1850 | }; | |
1851 | ||
1852 | static const struct sh_opcode sh_opcode80[] = | |
1853 | { | |
1854 | { 0x8000, STORE | USES2 | USESR0 }, /* mov.b r0,@(disp,rn) */ | |
1855 | { 0x8100, STORE | USES2 | USESR0 }, /* mov.w r0,@(disp,rn) */ | |
1856 | { 0x8200, SETSSP }, /* setrc #imm */ | |
1857 | { 0x8400, LOAD | SETSR0 | USES2 }, /* mov.b @(disp,rm),r0 */ | |
1858 | { 0x8500, LOAD | SETSR0 | USES2 }, /* mov.w @(disp,rn),r0 */ | |
1859 | { 0x8800, SETSSP | USESR0 }, /* cmp/eq #imm,r0 */ | |
1860 | { 0x8900, BRANCH | USESSP }, /* bt label */ | |
1861 | { 0x8b00, BRANCH | USESSP }, /* bf label */ | |
1862 | { 0x8c00, SETSSP }, /* ldrs @(disp,pc) */ | |
1863 | { 0x8d00, BRANCH | DELAY | USESSP }, /* bt/s label */ | |
1864 | { 0x8e00, SETSSP }, /* ldre @(disp,pc) */ | |
1865 | { 0x8f00, BRANCH | DELAY | USESSP } /* bf/s label */ | |
1866 | }; | |
1867 | ||
1868 | static const struct sh_minor_opcode sh_opcode8[] = | |
1869 | { | |
1870 | { MAP (sh_opcode80), 0xff00 } | |
1871 | }; | |
1872 | ||
1873 | static const struct sh_opcode sh_opcode90[] = | |
1874 | { | |
1875 | { 0x9000, LOAD | SETS1 } /* mov.w @(disp,pc),rn */ | |
1876 | }; | |
1877 | ||
1878 | static const struct sh_minor_opcode sh_opcode9[] = | |
1879 | { | |
1880 | { MAP (sh_opcode90), 0xf000 } | |
1881 | }; | |
1882 | ||
1883 | static const struct sh_opcode sh_opcodea0[] = | |
1884 | { | |
1885 | { 0xa000, BRANCH | DELAY } /* bra label */ | |
1886 | }; | |
1887 | ||
1888 | static const struct sh_minor_opcode sh_opcodea[] = | |
1889 | { | |
1890 | { MAP (sh_opcodea0), 0xf000 } | |
1891 | }; | |
1892 | ||
1893 | static const struct sh_opcode sh_opcodeb0[] = | |
1894 | { | |
1895 | { 0xb000, BRANCH | DELAY } /* bsr label */ | |
1896 | }; | |
1897 | ||
1898 | static const struct sh_minor_opcode sh_opcodeb[] = | |
1899 | { | |
1900 | { MAP (sh_opcodeb0), 0xf000 } | |
1901 | }; | |
1902 | ||
1903 | static const struct sh_opcode sh_opcodec0[] = | |
1904 | { | |
1905 | { 0xc000, STORE | USESR0 | USESSP }, /* mov.b r0,@(disp,gbr) */ | |
1906 | { 0xc100, STORE | USESR0 | USESSP }, /* mov.w r0,@(disp,gbr) */ | |
1907 | { 0xc200, STORE | USESR0 | USESSP }, /* mov.l r0,@(disp,gbr) */ | |
1908 | { 0xc300, BRANCH | USESSP }, /* trapa #imm */ | |
1909 | { 0xc400, LOAD | SETSR0 | USESSP }, /* mov.b @(disp,gbr),r0 */ | |
1910 | { 0xc500, LOAD | SETSR0 | USESSP }, /* mov.w @(disp,gbr),r0 */ | |
1911 | { 0xc600, LOAD | SETSR0 | USESSP }, /* mov.l @(disp,gbr),r0 */ | |
1912 | { 0xc700, SETSR0 }, /* mova @(disp,pc),r0 */ | |
1913 | { 0xc800, SETSSP | USESR0 }, /* tst #imm,r0 */ | |
1914 | { 0xc900, SETSR0 | USESR0 }, /* and #imm,r0 */ | |
1915 | { 0xca00, SETSR0 | USESR0 }, /* xor #imm,r0 */ | |
1916 | { 0xcb00, SETSR0 | USESR0 }, /* or #imm,r0 */ | |
1917 | { 0xcc00, LOAD | SETSSP | USESR0 | USESSP }, /* tst.b #imm,@(r0,gbr) */ | |
1918 | { 0xcd00, LOAD | STORE | USESR0 | USESSP }, /* and.b #imm,@(r0,gbr) */ | |
1919 | { 0xce00, LOAD | STORE | USESR0 | USESSP }, /* xor.b #imm,@(r0,gbr) */ | |
1920 | { 0xcf00, LOAD | STORE | USESR0 | USESSP } /* or.b #imm,@(r0,gbr) */ | |
1921 | }; | |
1922 | ||
1923 | static const struct sh_minor_opcode sh_opcodec[] = | |
1924 | { | |
1925 | { MAP (sh_opcodec0), 0xff00 } | |
1926 | }; | |
1927 | ||
1928 | static const struct sh_opcode sh_opcoded0[] = | |
1929 | { | |
1930 | { 0xd000, LOAD | SETS1 } /* mov.l @(disp,pc),rn */ | |
1931 | }; | |
1932 | ||
1933 | static const struct sh_minor_opcode sh_opcoded[] = | |
1934 | { | |
1935 | { MAP (sh_opcoded0), 0xf000 } | |
1936 | }; | |
1937 | ||
1938 | static const struct sh_opcode sh_opcodee0[] = | |
1939 | { | |
1940 | { 0xe000, SETS1 } /* mov #imm,rn */ | |
1941 | }; | |
1942 | ||
1943 | static const struct sh_minor_opcode sh_opcodee[] = | |
1944 | { | |
1945 | { MAP (sh_opcodee0), 0xf000 } | |
1946 | }; | |
1947 | ||
1948 | static const struct sh_opcode sh_opcodef0[] = | |
1949 | { | |
1950 | { 0xf000, SETSF1 | USESF1 | USESF2 }, /* fadd fm,fn */ | |
1951 | { 0xf001, SETSF1 | USESF1 | USESF2 }, /* fsub fm,fn */ | |
1952 | { 0xf002, SETSF1 | USESF1 | USESF2 }, /* fmul fm,fn */ | |
1953 | { 0xf003, SETSF1 | USESF1 | USESF2 }, /* fdiv fm,fn */ | |
1954 | { 0xf004, SETSSP | USESF1 | USESF2 }, /* fcmp/eq fm,fn */ | |
1955 | { 0xf005, SETSSP | USESF1 | USESF2 }, /* fcmp/gt fm,fn */ | |
1956 | { 0xf006, LOAD | SETSF1 | USES2 | USESR0 }, /* fmov.s @(r0,rm),fn */ | |
1957 | { 0xf007, STORE | USES1 | USESF2 | USESR0 }, /* fmov.s fm,@(r0,rn) */ | |
1958 | { 0xf008, LOAD | SETSF1 | USES2 }, /* fmov.s @rm,fn */ | |
1959 | { 0xf009, LOAD | SETS2 | SETSF1 | USES2 }, /* fmov.s @rm+,fn */ | |
1960 | { 0xf00a, STORE | USES1 | USESF2 }, /* fmov.s fm,@rn */ | |
1961 | { 0xf00b, STORE | SETS1 | USES1 | USESF2 }, /* fmov.s fm,@-rn */ | |
1962 | { 0xf00c, SETSF1 | USESF2 }, /* fmov fm,fn */ | |
1963 | { 0xf00e, SETSF1 | USESF1 | USESF2 | USESF0 } /* fmac f0,fm,fn */ | |
1964 | }; | |
1965 | ||
1966 | static const struct sh_opcode sh_opcodef1[] = | |
1967 | { | |
1968 | { 0xf00d, SETSF1 | USESSP }, /* fsts fpul,fn */ | |
1969 | { 0xf01d, SETSSP | USESF1 }, /* flds fn,fpul */ | |
1970 | { 0xf02d, SETSF1 | USESSP }, /* float fpul,fn */ | |
1971 | { 0xf03d, SETSSP | USESF1 }, /* ftrc fn,fpul */ | |
1972 | { 0xf04d, SETSF1 | USESF1 }, /* fneg fn */ | |
1973 | { 0xf05d, SETSF1 | USESF1 }, /* fabs fn */ | |
1974 | { 0xf06d, SETSF1 | USESF1 }, /* fsqrt fn */ | |
1975 | { 0xf07d, SETSSP | USESF1 }, /* ftst/nan fn */ | |
1976 | { 0xf08d, SETSF1 }, /* fldi0 fn */ | |
1977 | { 0xf09d, SETSF1 } /* fldi1 fn */ | |
1978 | }; | |
1979 | ||
1980 | static const struct sh_minor_opcode sh_opcodef[] = | |
1981 | { | |
1982 | { MAP (sh_opcodef0), 0xf00f }, | |
1983 | { MAP (sh_opcodef1), 0xf0ff } | |
1984 | }; | |
1985 | ||
1986 | static struct sh_major_opcode sh_opcodes[] = | |
1987 | { | |
1988 | { MAP (sh_opcode0) }, | |
1989 | { MAP (sh_opcode1) }, | |
1990 | { MAP (sh_opcode2) }, | |
1991 | { MAP (sh_opcode3) }, | |
1992 | { MAP (sh_opcode4) }, | |
1993 | { MAP (sh_opcode5) }, | |
1994 | { MAP (sh_opcode6) }, | |
1995 | { MAP (sh_opcode7) }, | |
1996 | { MAP (sh_opcode8) }, | |
1997 | { MAP (sh_opcode9) }, | |
1998 | { MAP (sh_opcodea) }, | |
1999 | { MAP (sh_opcodeb) }, | |
2000 | { MAP (sh_opcodec) }, | |
2001 | { MAP (sh_opcoded) }, | |
2002 | { MAP (sh_opcodee) }, | |
2003 | { MAP (sh_opcodef) } | |
2004 | }; | |
2005 | ||
2006 | /* The double data transfer / parallel processing insns are not | |
2007 | described here. This will cause sh_align_load_span to leave them alone. */ | |
2008 | ||
2009 | static const struct sh_opcode sh_dsp_opcodef0[] = | |
2010 | { | |
2011 | { 0xf400, USESAS | SETSAS | LOAD | SETSSP }, /* movs.x @-as,ds */ | |
2012 | { 0xf401, USESAS | SETSAS | STORE | USESSP }, /* movs.x ds,@-as */ | |
2013 | { 0xf404, USESAS | LOAD | SETSSP }, /* movs.x @as,ds */ | |
2014 | { 0xf405, USESAS | STORE | USESSP }, /* movs.x ds,@as */ | |
2015 | { 0xf408, USESAS | SETSAS | LOAD | SETSSP }, /* movs.x @as+,ds */ | |
2016 | { 0xf409, USESAS | SETSAS | STORE | USESSP }, /* movs.x ds,@as+ */ | |
2017 | { 0xf40c, USESAS | SETSAS | LOAD | SETSSP | USESR8 }, /* movs.x @as+r8,ds */ | |
2018 | { 0xf40d, USESAS | SETSAS | STORE | USESSP | USESR8 } /* movs.x ds,@as+r8 */ | |
2019 | }; | |
2020 | ||
2021 | static const struct sh_minor_opcode sh_dsp_opcodef[] = | |
2022 | { | |
2023 | { MAP (sh_dsp_opcodef0), 0xfc0d } | |
2024 | }; | |
2025 | ||
2026 | /* Given an instruction, return a pointer to the corresponding | |
2027 | sh_opcode structure. Return NULL if the instruction is not | |
2028 | recognized. */ | |
2029 | ||
2030 | static const struct sh_opcode * | |
2031 | sh_insn_info (unsigned int insn) | |
2032 | { | |
2033 | const struct sh_major_opcode *maj; | |
2034 | const struct sh_minor_opcode *min, *minend; | |
2035 | ||
2036 | maj = &sh_opcodes[(insn & 0xf000) >> 12]; | |
2037 | min = maj->minor_opcodes; | |
2038 | minend = min + maj->count; | |
2039 | for (; min < minend; min++) | |
2040 | { | |
2041 | unsigned int l; | |
2042 | const struct sh_opcode *op, *opend; | |
2043 | ||
2044 | l = insn & min->mask; | |
2045 | op = min->opcodes; | |
2046 | opend = op + min->count; | |
2047 | ||
2048 | /* Since the opcodes tables are sorted, we could use a binary | |
2049 | search here if the count were above some cutoff value. */ | |
2050 | for (; op < opend; op++) | |
2051 | if (op->opcode == l) | |
2052 | return op; | |
2053 | } | |
2054 | ||
2055 | return NULL; | |
2056 | } | |
2057 | ||
2058 | /* See whether an instruction uses a general purpose register. */ | |
2059 | ||
2060 | static bfd_boolean | |
2061 | sh_insn_uses_reg (unsigned int insn, | |
2062 | const struct sh_opcode *op, | |
2063 | unsigned int reg) | |
2064 | { | |
2065 | unsigned int f; | |
2066 | ||
2067 | f = op->flags; | |
2068 | ||
2069 | if ((f & USES1) != 0 | |
2070 | && USES1_REG (insn) == reg) | |
2071 | return TRUE; | |
2072 | if ((f & USES2) != 0 | |
2073 | && USES2_REG (insn) == reg) | |
2074 | return TRUE; | |
2075 | if ((f & USESR0) != 0 | |
2076 | && reg == 0) | |
2077 | return TRUE; | |
2078 | if ((f & USESAS) && reg == USESAS_REG (insn)) | |
2079 | return TRUE; | |
2080 | if ((f & USESR8) && reg == 8) | |
2081 | return TRUE; | |
2082 | ||
2083 | return FALSE; | |
2084 | } | |
2085 | ||
2086 | /* See whether an instruction sets a general purpose register. */ | |
2087 | ||
2088 | static bfd_boolean | |
2089 | sh_insn_sets_reg (unsigned int insn, | |
2090 | const struct sh_opcode *op, | |
2091 | unsigned int reg) | |
2092 | { | |
2093 | unsigned int f; | |
2094 | ||
2095 | f = op->flags; | |
2096 | ||
2097 | if ((f & SETS1) != 0 | |
2098 | && SETS1_REG (insn) == reg) | |
2099 | return TRUE; | |
2100 | if ((f & SETS2) != 0 | |
2101 | && SETS2_REG (insn) == reg) | |
2102 | return TRUE; | |
2103 | if ((f & SETSR0) != 0 | |
2104 | && reg == 0) | |
2105 | return TRUE; | |
2106 | if ((f & SETSAS) && reg == SETSAS_REG (insn)) | |
2107 | return TRUE; | |
2108 | ||
2109 | return FALSE; | |
2110 | } | |
2111 | ||
2112 | /* See whether an instruction uses or sets a general purpose register */ | |
2113 | ||
2114 | static bfd_boolean | |
2115 | sh_insn_uses_or_sets_reg (unsigned int insn, | |
2116 | const struct sh_opcode *op, | |
2117 | unsigned int reg) | |
2118 | { | |
2119 | if (sh_insn_uses_reg (insn, op, reg)) | |
2120 | return TRUE; | |
2121 | ||
2122 | return sh_insn_sets_reg (insn, op, reg); | |
2123 | } | |
2124 | ||
2125 | /* See whether an instruction uses a floating point register. */ | |
2126 | ||
2127 | static bfd_boolean | |
2128 | sh_insn_uses_freg (unsigned int insn, | |
2129 | const struct sh_opcode *op, | |
2130 | unsigned int freg) | |
2131 | { | |
2132 | unsigned int f; | |
2133 | ||
2134 | f = op->flags; | |
2135 | ||
2136 | /* We can't tell if this is a double-precision insn, so just play safe | |
2137 | and assume that it might be. So not only have we test FREG against | |
2138 | itself, but also even FREG against FREG+1 - if the using insn uses | |
2139 | just the low part of a double precision value - but also an odd | |
2140 | FREG against FREG-1 - if the setting insn sets just the low part | |
2141 | of a double precision value. | |
2142 | So what this all boils down to is that we have to ignore the lowest | |
2143 | bit of the register number. */ | |
2144 | ||
2145 | if ((f & USESF1) != 0 | |
2146 | && (USESF1_REG (insn) & 0xe) == (freg & 0xe)) | |
2147 | return TRUE; | |
2148 | if ((f & USESF2) != 0 | |
2149 | && (USESF2_REG (insn) & 0xe) == (freg & 0xe)) | |
2150 | return TRUE; | |
2151 | if ((f & USESF0) != 0 | |
2152 | && freg == 0) | |
2153 | return TRUE; | |
2154 | ||
2155 | return FALSE; | |
2156 | } | |
2157 | ||
2158 | /* See whether an instruction sets a floating point register. */ | |
2159 | ||
2160 | static bfd_boolean | |
2161 | sh_insn_sets_freg (unsigned int insn, | |
2162 | const struct sh_opcode *op, | |
2163 | unsigned int freg) | |
2164 | { | |
2165 | unsigned int f; | |
2166 | ||
2167 | f = op->flags; | |
2168 | ||
2169 | /* We can't tell if this is a double-precision insn, so just play safe | |
2170 | and assume that it might be. So not only have we test FREG against | |
2171 | itself, but also even FREG against FREG+1 - if the using insn uses | |
2172 | just the low part of a double precision value - but also an odd | |
2173 | FREG against FREG-1 - if the setting insn sets just the low part | |
2174 | of a double precision value. | |
2175 | So what this all boils down to is that we have to ignore the lowest | |
2176 | bit of the register number. */ | |
2177 | ||
2178 | if ((f & SETSF1) != 0 | |
2179 | && (SETSF1_REG (insn) & 0xe) == (freg & 0xe)) | |
2180 | return TRUE; | |
2181 | ||
2182 | return FALSE; | |
2183 | } | |
2184 | ||
2185 | /* See whether an instruction uses or sets a floating point register */ | |
2186 | ||
2187 | static bfd_boolean | |
2188 | sh_insn_uses_or_sets_freg (unsigned int insn, | |
2189 | const struct sh_opcode *op, | |
2190 | unsigned int reg) | |
2191 | { | |
2192 | if (sh_insn_uses_freg (insn, op, reg)) | |
2193 | return TRUE; | |
2194 | ||
2195 | return sh_insn_sets_freg (insn, op, reg); | |
2196 | } | |
2197 | ||
2198 | /* See whether instructions I1 and I2 conflict, assuming I1 comes | |
2199 | before I2. OP1 and OP2 are the corresponding sh_opcode structures. | |
2200 | This should return TRUE if there is a conflict, or FALSE if the | |
2201 | instructions can be swapped safely. */ | |
2202 | ||
2203 | static bfd_boolean | |
2204 | sh_insns_conflict (unsigned int i1, | |
2205 | const struct sh_opcode *op1, | |
2206 | unsigned int i2, | |
2207 | const struct sh_opcode *op2) | |
2208 | { | |
2209 | unsigned int f1, f2; | |
2210 | ||
2211 | f1 = op1->flags; | |
2212 | f2 = op2->flags; | |
2213 | ||
2214 | /* Load of fpscr conflicts with floating point operations. | |
2215 | FIXME: shouldn't test raw opcodes here. */ | |
2216 | if (((i1 & 0xf0ff) == 0x4066 && (i2 & 0xf000) == 0xf000) | |
2217 | || ((i2 & 0xf0ff) == 0x4066 && (i1 & 0xf000) == 0xf000)) | |
2218 | return TRUE; | |
2219 | ||
2220 | if ((f1 & (BRANCH | DELAY)) != 0 | |
2221 | || (f2 & (BRANCH | DELAY)) != 0) | |
2222 | return TRUE; | |
2223 | ||
2224 | if (((f1 | f2) & SETSSP) | |
2225 | && (f1 & (SETSSP | USESSP)) | |
2226 | && (f2 & (SETSSP | USESSP))) | |
2227 | return TRUE; | |
2228 | ||
2229 | if ((f1 & SETS1) != 0 | |
2230 | && sh_insn_uses_or_sets_reg (i2, op2, SETS1_REG (i1))) | |
2231 | return TRUE; | |
2232 | if ((f1 & SETS2) != 0 | |
2233 | && sh_insn_uses_or_sets_reg (i2, op2, SETS2_REG (i1))) | |
2234 | return TRUE; | |
2235 | if ((f1 & SETSR0) != 0 | |
2236 | && sh_insn_uses_or_sets_reg (i2, op2, 0)) | |
2237 | return TRUE; | |
2238 | if ((f1 & SETSAS) | |
2239 | && sh_insn_uses_or_sets_reg (i2, op2, SETSAS_REG (i1))) | |
2240 | return TRUE; | |
2241 | if ((f1 & SETSF1) != 0 | |
2242 | && sh_insn_uses_or_sets_freg (i2, op2, SETSF1_REG (i1))) | |
2243 | return TRUE; | |
2244 | ||
2245 | if ((f2 & SETS1) != 0 | |
2246 | && sh_insn_uses_or_sets_reg (i1, op1, SETS1_REG (i2))) | |
2247 | return TRUE; | |
2248 | if ((f2 & SETS2) != 0 | |
2249 | && sh_insn_uses_or_sets_reg (i1, op1, SETS2_REG (i2))) | |
2250 | return TRUE; | |
2251 | if ((f2 & SETSR0) != 0 | |
2252 | && sh_insn_uses_or_sets_reg (i1, op1, 0)) | |
2253 | return TRUE; | |
2254 | if ((f2 & SETSAS) | |
2255 | && sh_insn_uses_or_sets_reg (i1, op1, SETSAS_REG (i2))) | |
2256 | return TRUE; | |
2257 | if ((f2 & SETSF1) != 0 | |
2258 | && sh_insn_uses_or_sets_freg (i1, op1, SETSF1_REG (i2))) | |
2259 | return TRUE; | |
2260 | ||
2261 | /* The instructions do not conflict. */ | |
2262 | return FALSE; | |
2263 | } | |
2264 | ||
2265 | /* I1 is a load instruction, and I2 is some other instruction. Return | |
2266 | TRUE if I1 loads a register which I2 uses. */ | |
2267 | ||
2268 | static bfd_boolean | |
2269 | sh_load_use (unsigned int i1, | |
2270 | const struct sh_opcode *op1, | |
2271 | unsigned int i2, | |
2272 | const struct sh_opcode *op2) | |
2273 | { | |
2274 | unsigned int f1; | |
2275 | ||
2276 | f1 = op1->flags; | |
2277 | ||
2278 | if ((f1 & LOAD) == 0) | |
2279 | return FALSE; | |
2280 | ||
2281 | /* If both SETS1 and SETSSP are set, that means a load to a special | |
2282 | register using postincrement addressing mode, which we don't care | |
2283 | about here. */ | |
2284 | if ((f1 & SETS1) != 0 | |
2285 | && (f1 & SETSSP) == 0 | |
2286 | && sh_insn_uses_reg (i2, op2, (i1 & 0x0f00) >> 8)) | |
2287 | return TRUE; | |
2288 | ||
2289 | if ((f1 & SETSR0) != 0 | |
2290 | && sh_insn_uses_reg (i2, op2, 0)) | |
2291 | return TRUE; | |
2292 | ||
2293 | if ((f1 & SETSF1) != 0 | |
2294 | && sh_insn_uses_freg (i2, op2, (i1 & 0x0f00) >> 8)) | |
2295 | return TRUE; | |
2296 | ||
2297 | return FALSE; | |
2298 | } | |
2299 | ||
2300 | /* Try to align loads and stores within a span of memory. This is | |
2301 | called by both the ELF and the COFF sh targets. ABFD and SEC are | |
2302 | the BFD and section we are examining. CONTENTS is the contents of | |
2303 | the section. SWAP is the routine to call to swap two instructions. | |
2304 | RELOCS is a pointer to the internal relocation information, to be | |
2305 | passed to SWAP. PLABEL is a pointer to the current label in a | |
2306 | sorted list of labels; LABEL_END is the end of the list. START and | |
2307 | STOP are the range of memory to examine. If a swap is made, | |
2308 | *PSWAPPED is set to TRUE. */ | |
2309 | ||
2310 | #ifdef COFF_WITH_PE | |
2311 | static | |
2312 | #endif | |
2313 | bfd_boolean | |
2314 | _bfd_sh_align_load_span (bfd *abfd, | |
2315 | asection *sec, | |
2316 | bfd_byte *contents, | |
2317 | bfd_boolean (*swap) (bfd *, asection *, void *, bfd_byte *, bfd_vma), | |
2318 | void * relocs, | |
2319 | bfd_vma **plabel, | |
2320 | bfd_vma *label_end, | |
2321 | bfd_vma start, | |
2322 | bfd_vma stop, | |
2323 | bfd_boolean *pswapped) | |
2324 | { | |
2325 | int dsp = (abfd->arch_info->mach == bfd_mach_sh_dsp | |
2326 | || abfd->arch_info->mach == bfd_mach_sh3_dsp); | |
2327 | bfd_vma i; | |
2328 | ||
2329 | /* The SH4 has a Harvard architecture, hence aligning loads is not | |
2330 | desirable. In fact, it is counter-productive, since it interferes | |
2331 | with the schedules generated by the compiler. */ | |
2332 | if (abfd->arch_info->mach == bfd_mach_sh4) | |
2333 | return TRUE; | |
2334 | ||
2335 | /* If we are linking sh[3]-dsp code, swap the FPU instructions for DSP | |
2336 | instructions. */ | |
2337 | if (dsp) | |
2338 | { | |
2339 | sh_opcodes[0xf].minor_opcodes = sh_dsp_opcodef; | |
2340 | sh_opcodes[0xf].count = sizeof sh_dsp_opcodef / sizeof sh_dsp_opcodef [0]; | |
2341 | } | |
2342 | ||
2343 | /* Instructions should be aligned on 2 byte boundaries. */ | |
2344 | if ((start & 1) == 1) | |
2345 | ++start; | |
2346 | ||
2347 | /* Now look through the unaligned addresses. */ | |
2348 | i = start; | |
2349 | if ((i & 2) == 0) | |
2350 | i += 2; | |
2351 | for (; i < stop; i += 4) | |
2352 | { | |
2353 | unsigned int insn; | |
2354 | const struct sh_opcode *op; | |
2355 | unsigned int prev_insn = 0; | |
2356 | const struct sh_opcode *prev_op = NULL; | |
2357 | ||
2358 | insn = bfd_get_16 (abfd, contents + i); | |
2359 | op = sh_insn_info (insn); | |
2360 | if (op == NULL | |
2361 | || (op->flags & (LOAD | STORE)) == 0) | |
2362 | continue; | |
2363 | ||
2364 | /* This is a load or store which is not on a four byte boundary. */ | |
2365 | ||
2366 | while (*plabel < label_end && **plabel < i) | |
2367 | ++*plabel; | |
2368 | ||
2369 | if (i > start) | |
2370 | { | |
2371 | prev_insn = bfd_get_16 (abfd, contents + i - 2); | |
2372 | /* If INSN is the field b of a parallel processing insn, it is not | |
2373 | a load / store after all. Note that the test here might mistake | |
2374 | the field_b of a pcopy insn for the starting code of a parallel | |
2375 | processing insn; this might miss a swapping opportunity, but at | |
2376 | least we're on the safe side. */ | |
2377 | if (dsp && (prev_insn & 0xfc00) == 0xf800) | |
2378 | continue; | |
2379 | ||
2380 | /* Check if prev_insn is actually the field b of a parallel | |
2381 | processing insn. Again, this can give a spurious match | |
2382 | after a pcopy. */ | |
2383 | if (dsp && i - 2 > start) | |
2384 | { | |
2385 | unsigned pprev_insn = bfd_get_16 (abfd, contents + i - 4); | |
2386 | ||
2387 | if ((pprev_insn & 0xfc00) == 0xf800) | |
2388 | prev_op = NULL; | |
2389 | else | |
2390 | prev_op = sh_insn_info (prev_insn); | |
2391 | } | |
2392 | else | |
2393 | prev_op = sh_insn_info (prev_insn); | |
2394 | ||
2395 | /* If the load/store instruction is in a delay slot, we | |
2396 | can't swap. */ | |
2397 | if (prev_op == NULL | |
2398 | || (prev_op->flags & DELAY) != 0) | |
2399 | continue; | |
2400 | } | |
2401 | if (i > start | |
2402 | && (*plabel >= label_end || **plabel != i) | |
2403 | && prev_op != NULL | |
2404 | && (prev_op->flags & (LOAD | STORE)) == 0 | |
2405 | && ! sh_insns_conflict (prev_insn, prev_op, insn, op)) | |
2406 | { | |
2407 | bfd_boolean ok; | |
2408 | ||
2409 | /* The load/store instruction does not have a label, and | |
2410 | there is a previous instruction; PREV_INSN is not | |
2411 | itself a load/store instruction, and PREV_INSN and | |
2412 | INSN do not conflict. */ | |
2413 | ||
2414 | ok = TRUE; | |
2415 | ||
2416 | if (i >= start + 4) | |
2417 | { | |
2418 | unsigned int prev2_insn; | |
2419 | const struct sh_opcode *prev2_op; | |
2420 | ||
2421 | prev2_insn = bfd_get_16 (abfd, contents + i - 4); | |
2422 | prev2_op = sh_insn_info (prev2_insn); | |
2423 | ||
2424 | /* If the instruction before PREV_INSN has a delay | |
2425 | slot--that is, PREV_INSN is in a delay slot--we | |
2426 | can not swap. */ | |
2427 | if (prev2_op == NULL | |
2428 | || (prev2_op->flags & DELAY) != 0) | |
2429 | ok = FALSE; | |
2430 | ||
2431 | /* If the instruction before PREV_INSN is a load, | |
2432 | and it sets a register which INSN uses, then | |
2433 | putting INSN immediately after PREV_INSN will | |
2434 | cause a pipeline bubble, so there is no point to | |
2435 | making the swap. */ | |
2436 | if (ok | |
2437 | && (prev2_op->flags & LOAD) != 0 | |
2438 | && sh_load_use (prev2_insn, prev2_op, insn, op)) | |
2439 | ok = FALSE; | |
2440 | } | |
2441 | ||
2442 | if (ok) | |
2443 | { | |
2444 | if (! (*swap) (abfd, sec, relocs, contents, i - 2)) | |
2445 | return FALSE; | |
2446 | *pswapped = TRUE; | |
2447 | continue; | |
2448 | } | |
2449 | } | |
2450 | ||
2451 | while (*plabel < label_end && **plabel < i + 2) | |
2452 | ++*plabel; | |
2453 | ||
2454 | if (i + 2 < stop | |
2455 | && (*plabel >= label_end || **plabel != i + 2)) | |
2456 | { | |
2457 | unsigned int next_insn; | |
2458 | const struct sh_opcode *next_op; | |
2459 | ||
2460 | /* There is an instruction after the load/store | |
2461 | instruction, and it does not have a label. */ | |
2462 | next_insn = bfd_get_16 (abfd, contents + i + 2); | |
2463 | next_op = sh_insn_info (next_insn); | |
2464 | if (next_op != NULL | |
2465 | && (next_op->flags & (LOAD | STORE)) == 0 | |
2466 | && ! sh_insns_conflict (insn, op, next_insn, next_op)) | |
2467 | { | |
2468 | bfd_boolean ok; | |
2469 | ||
2470 | /* NEXT_INSN is not itself a load/store instruction, | |
2471 | and it does not conflict with INSN. */ | |
2472 | ||
2473 | ok = TRUE; | |
2474 | ||
2475 | /* If PREV_INSN is a load, and it sets a register | |
2476 | which NEXT_INSN uses, then putting NEXT_INSN | |
2477 | immediately after PREV_INSN will cause a pipeline | |
2478 | bubble, so there is no reason to make this swap. */ | |
2479 | if (prev_op != NULL | |
2480 | && (prev_op->flags & LOAD) != 0 | |
2481 | && sh_load_use (prev_insn, prev_op, next_insn, next_op)) | |
2482 | ok = FALSE; | |
2483 | ||
2484 | /* If INSN is a load, and it sets a register which | |
2485 | the insn after NEXT_INSN uses, then doing the | |
2486 | swap will cause a pipeline bubble, so there is no | |
2487 | reason to make the swap. However, if the insn | |
2488 | after NEXT_INSN is itself a load or store | |
2489 | instruction, then it is misaligned, so | |
2490 | optimistically hope that it will be swapped | |
2491 | itself, and just live with the pipeline bubble if | |
2492 | it isn't. */ | |
2493 | if (ok | |
2494 | && i + 4 < stop | |
2495 | && (op->flags & LOAD) != 0) | |
2496 | { | |
2497 | unsigned int next2_insn; | |
2498 | const struct sh_opcode *next2_op; | |
2499 | ||
2500 | next2_insn = bfd_get_16 (abfd, contents + i + 4); | |
2501 | next2_op = sh_insn_info (next2_insn); | |
2502 | if (next2_op == NULL | |
2503 | || ((next2_op->flags & (LOAD | STORE)) == 0 | |
2504 | && sh_load_use (insn, op, next2_insn, next2_op))) | |
2505 | ok = FALSE; | |
2506 | } | |
2507 | ||
2508 | if (ok) | |
2509 | { | |
2510 | if (! (*swap) (abfd, sec, relocs, contents, i)) | |
2511 | return FALSE; | |
2512 | *pswapped = TRUE; | |
2513 | continue; | |
2514 | } | |
2515 | } | |
2516 | } | |
2517 | } | |
2518 | ||
2519 | return TRUE; | |
2520 | } | |
2521 | #endif /* not COFF_IMAGE_WITH_PE */ | |
2522 | ||
2523 | /* Swap two SH instructions. */ | |
2524 | ||
2525 | static bfd_boolean | |
2526 | sh_swap_insns (bfd * abfd, | |
2527 | asection * sec, | |
2528 | void * relocs, | |
2529 | bfd_byte * contents, | |
2530 | bfd_vma addr) | |
2531 | { | |
2532 | struct internal_reloc *internal_relocs = (struct internal_reloc *) relocs; | |
2533 | unsigned short i1, i2; | |
2534 | struct internal_reloc *irel, *irelend; | |
2535 | ||
2536 | /* Swap the instructions themselves. */ | |
2537 | i1 = bfd_get_16 (abfd, contents + addr); | |
2538 | i2 = bfd_get_16 (abfd, contents + addr + 2); | |
2539 | bfd_put_16 (abfd, (bfd_vma) i2, contents + addr); | |
2540 | bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2); | |
2541 | ||
2542 | /* Adjust all reloc addresses. */ | |
2543 | irelend = internal_relocs + sec->reloc_count; | |
2544 | for (irel = internal_relocs; irel < irelend; irel++) | |
2545 | { | |
2546 | int type, add; | |
2547 | ||
2548 | /* There are a few special types of relocs that we don't want to | |
2549 | adjust. These relocs do not apply to the instruction itself, | |
2550 | but are only associated with the address. */ | |
2551 | type = irel->r_type; | |
2552 | if (type == R_SH_ALIGN | |
2553 | || type == R_SH_CODE | |
2554 | || type == R_SH_DATA | |
2555 | || type == R_SH_LABEL) | |
2556 | continue; | |
2557 | ||
2558 | /* If an R_SH_USES reloc points to one of the addresses being | |
2559 | swapped, we must adjust it. It would be incorrect to do this | |
2560 | for a jump, though, since we want to execute both | |
2561 | instructions after the jump. (We have avoided swapping | |
2562 | around a label, so the jump will not wind up executing an | |
2563 | instruction it shouldn't). */ | |
2564 | if (type == R_SH_USES) | |
2565 | { | |
2566 | bfd_vma off; | |
2567 | ||
2568 | off = irel->r_vaddr - sec->vma + 4 + irel->r_offset; | |
2569 | if (off == addr) | |
2570 | irel->r_offset += 2; | |
2571 | else if (off == addr + 2) | |
2572 | irel->r_offset -= 2; | |
2573 | } | |
2574 | ||
2575 | if (irel->r_vaddr - sec->vma == addr) | |
2576 | { | |
2577 | irel->r_vaddr += 2; | |
2578 | add = -2; | |
2579 | } | |
2580 | else if (irel->r_vaddr - sec->vma == addr + 2) | |
2581 | { | |
2582 | irel->r_vaddr -= 2; | |
2583 | add = 2; | |
2584 | } | |
2585 | else | |
2586 | add = 0; | |
2587 | ||
2588 | if (add != 0) | |
2589 | { | |
2590 | bfd_byte *loc; | |
2591 | unsigned short insn, oinsn; | |
2592 | bfd_boolean overflow; | |
2593 | ||
2594 | loc = contents + irel->r_vaddr - sec->vma; | |
2595 | overflow = FALSE; | |
2596 | switch (type) | |
2597 | { | |
2598 | default: | |
2599 | break; | |
2600 | ||
2601 | case R_SH_PCDISP8BY2: | |
2602 | case R_SH_PCRELIMM8BY2: | |
2603 | insn = bfd_get_16 (abfd, loc); | |
2604 | oinsn = insn; | |
2605 | insn += add / 2; | |
2606 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
2607 | overflow = TRUE; | |
2608 | bfd_put_16 (abfd, (bfd_vma) insn, loc); | |
2609 | break; | |
2610 | ||
2611 | case R_SH_PCDISP: | |
2612 | insn = bfd_get_16 (abfd, loc); | |
2613 | oinsn = insn; | |
2614 | insn += add / 2; | |
2615 | if ((oinsn & 0xf000) != (insn & 0xf000)) | |
2616 | overflow = TRUE; | |
2617 | bfd_put_16 (abfd, (bfd_vma) insn, loc); | |
2618 | break; | |
2619 | ||
2620 | case R_SH_PCRELIMM8BY4: | |
2621 | /* This reloc ignores the least significant 3 bits of | |
2622 | the program counter before adding in the offset. | |
2623 | This means that if ADDR is at an even address, the | |
2624 | swap will not affect the offset. If ADDR is an at an | |
2625 | odd address, then the instruction will be crossing a | |
2626 | four byte boundary, and must be adjusted. */ | |
2627 | if ((addr & 3) != 0) | |
2628 | { | |
2629 | insn = bfd_get_16 (abfd, loc); | |
2630 | oinsn = insn; | |
2631 | insn += add / 2; | |
2632 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
2633 | overflow = TRUE; | |
2634 | bfd_put_16 (abfd, (bfd_vma) insn, loc); | |
2635 | } | |
2636 | ||
2637 | break; | |
2638 | } | |
2639 | ||
2640 | if (overflow) | |
2641 | { | |
2642 | _bfd_error_handler | |
2643 | /* xgettext: c-format */ | |
2644 | (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"), | |
2645 | abfd, (uint64_t) irel->r_vaddr); | |
2646 | bfd_set_error (bfd_error_bad_value); | |
2647 | return FALSE; | |
2648 | } | |
2649 | } | |
2650 | } | |
2651 | ||
2652 | return TRUE; | |
2653 | } | |
2654 | ||
2655 | /* Look for loads and stores which we can align to four byte | |
2656 | boundaries. See the longer comment above sh_relax_section for why | |
2657 | this is desirable. This sets *PSWAPPED if some instruction was | |
2658 | swapped. */ | |
2659 | ||
2660 | static bfd_boolean | |
2661 | sh_align_loads (bfd *abfd, | |
2662 | asection *sec, | |
2663 | struct internal_reloc *internal_relocs, | |
2664 | bfd_byte *contents, | |
2665 | bfd_boolean *pswapped) | |
2666 | { | |
2667 | struct internal_reloc *irel, *irelend; | |
2668 | bfd_vma *labels = NULL; | |
2669 | bfd_vma *label, *label_end; | |
2670 | bfd_size_type amt; | |
2671 | ||
2672 | *pswapped = FALSE; | |
2673 | ||
2674 | irelend = internal_relocs + sec->reloc_count; | |
2675 | ||
2676 | /* Get all the addresses with labels on them. */ | |
2677 | amt = (bfd_size_type) sec->reloc_count * sizeof (bfd_vma); | |
2678 | labels = (bfd_vma *) bfd_malloc (amt); | |
2679 | if (labels == NULL) | |
2680 | goto error_return; | |
2681 | label_end = labels; | |
2682 | for (irel = internal_relocs; irel < irelend; irel++) | |
2683 | { | |
2684 | if (irel->r_type == R_SH_LABEL) | |
2685 | { | |
2686 | *label_end = irel->r_vaddr - sec->vma; | |
2687 | ++label_end; | |
2688 | } | |
2689 | } | |
2690 | ||
2691 | /* Note that the assembler currently always outputs relocs in | |
2692 | address order. If that ever changes, this code will need to sort | |
2693 | the label values and the relocs. */ | |
2694 | ||
2695 | label = labels; | |
2696 | ||
2697 | for (irel = internal_relocs; irel < irelend; irel++) | |
2698 | { | |
2699 | bfd_vma start, stop; | |
2700 | ||
2701 | if (irel->r_type != R_SH_CODE) | |
2702 | continue; | |
2703 | ||
2704 | start = irel->r_vaddr - sec->vma; | |
2705 | ||
2706 | for (irel++; irel < irelend; irel++) | |
2707 | if (irel->r_type == R_SH_DATA) | |
2708 | break; | |
2709 | if (irel < irelend) | |
2710 | stop = irel->r_vaddr - sec->vma; | |
2711 | else | |
2712 | stop = sec->size; | |
2713 | ||
2714 | if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_swap_insns, | |
2715 | internal_relocs, &label, | |
2716 | label_end, start, stop, pswapped)) | |
2717 | goto error_return; | |
2718 | } | |
2719 | ||
2720 | free (labels); | |
2721 | ||
2722 | return TRUE; | |
2723 | ||
2724 | error_return: | |
2725 | free (labels); | |
2726 | return FALSE; | |
2727 | } | |
2728 | \f | |
2729 | /* This is a modification of _bfd_coff_generic_relocate_section, which | |
2730 | will handle SH relaxing. */ | |
2731 | ||
2732 | static bfd_boolean | |
2733 | sh_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2734 | struct bfd_link_info *info, | |
2735 | bfd *input_bfd, | |
2736 | asection *input_section, | |
2737 | bfd_byte *contents, | |
2738 | struct internal_reloc *relocs, | |
2739 | struct internal_syment *syms, | |
2740 | asection **sections) | |
2741 | { | |
2742 | struct internal_reloc *rel; | |
2743 | struct internal_reloc *relend; | |
2744 | ||
2745 | rel = relocs; | |
2746 | relend = rel + input_section->reloc_count; | |
2747 | for (; rel < relend; rel++) | |
2748 | { | |
2749 | long symndx; | |
2750 | struct coff_link_hash_entry *h; | |
2751 | struct internal_syment *sym; | |
2752 | bfd_vma addend; | |
2753 | bfd_vma val; | |
2754 | reloc_howto_type *howto; | |
2755 | bfd_reloc_status_type rstat; | |
2756 | ||
2757 | /* Almost all relocs have to do with relaxing. If any work must | |
2758 | be done for them, it has been done in sh_relax_section. */ | |
2759 | if (rel->r_type != R_SH_IMM32 | |
2760 | #ifdef COFF_WITH_PE | |
2761 | && rel->r_type != R_SH_IMM32CE | |
2762 | && rel->r_type != R_SH_IMAGEBASE | |
2763 | #endif | |
2764 | && rel->r_type != R_SH_PCDISP) | |
2765 | continue; | |
2766 | ||
2767 | symndx = rel->r_symndx; | |
2768 | ||
2769 | if (symndx == -1) | |
2770 | { | |
2771 | h = NULL; | |
2772 | sym = NULL; | |
2773 | } | |
2774 | else | |
2775 | { | |
2776 | if (symndx < 0 | |
2777 | || (unsigned long) symndx >= obj_raw_syment_count (input_bfd)) | |
2778 | { | |
2779 | _bfd_error_handler | |
2780 | /* xgettext: c-format */ | |
2781 | (_("%pB: illegal symbol index %ld in relocs"), | |
2782 | input_bfd, symndx); | |
2783 | bfd_set_error (bfd_error_bad_value); | |
2784 | return FALSE; | |
2785 | } | |
2786 | h = obj_coff_sym_hashes (input_bfd)[symndx]; | |
2787 | sym = syms + symndx; | |
2788 | } | |
2789 | ||
2790 | if (sym != NULL && sym->n_scnum != 0) | |
2791 | addend = - sym->n_value; | |
2792 | else | |
2793 | addend = 0; | |
2794 | ||
2795 | if (rel->r_type == R_SH_PCDISP) | |
2796 | addend -= 4; | |
2797 | ||
2798 | if (rel->r_type >= SH_COFF_HOWTO_COUNT) | |
2799 | howto = NULL; | |
2800 | else | |
2801 | howto = &sh_coff_howtos[rel->r_type]; | |
2802 | ||
2803 | if (howto == NULL) | |
2804 | { | |
2805 | bfd_set_error (bfd_error_bad_value); | |
2806 | return FALSE; | |
2807 | } | |
2808 | ||
2809 | #ifdef COFF_WITH_PE | |
2810 | if (rel->r_type == R_SH_IMAGEBASE) | |
2811 | addend -= pe_data (input_section->output_section->owner)->pe_opthdr.ImageBase; | |
2812 | #endif | |
2813 | ||
2814 | val = 0; | |
2815 | ||
2816 | if (h == NULL) | |
2817 | { | |
2818 | asection *sec; | |
2819 | ||
2820 | /* There is nothing to do for an internal PCDISP reloc. */ | |
2821 | if (rel->r_type == R_SH_PCDISP) | |
2822 | continue; | |
2823 | ||
2824 | if (symndx == -1) | |
2825 | { | |
2826 | sec = bfd_abs_section_ptr; | |
2827 | val = 0; | |
2828 | } | |
2829 | else | |
2830 | { | |
2831 | sec = sections[symndx]; | |
2832 | val = (sec->output_section->vma | |
2833 | + sec->output_offset | |
2834 | + sym->n_value | |
2835 | - sec->vma); | |
2836 | } | |
2837 | } | |
2838 | else | |
2839 | { | |
2840 | if (h->root.type == bfd_link_hash_defined | |
2841 | || h->root.type == bfd_link_hash_defweak) | |
2842 | { | |
2843 | asection *sec; | |
2844 | ||
2845 | sec = h->root.u.def.section; | |
2846 | val = (h->root.u.def.value | |
2847 | + sec->output_section->vma | |
2848 | + sec->output_offset); | |
2849 | } | |
2850 | else if (! bfd_link_relocatable (info)) | |
2851 | (*info->callbacks->undefined_symbol) | |
2852 | (info, h->root.root.string, input_bfd, input_section, | |
2853 | rel->r_vaddr - input_section->vma, TRUE); | |
2854 | } | |
2855 | ||
2856 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
2857 | contents, | |
2858 | rel->r_vaddr - input_section->vma, | |
2859 | val, addend); | |
2860 | ||
2861 | switch (rstat) | |
2862 | { | |
2863 | default: | |
2864 | abort (); | |
2865 | case bfd_reloc_ok: | |
2866 | break; | |
2867 | case bfd_reloc_overflow: | |
2868 | { | |
2869 | const char *name; | |
2870 | char buf[SYMNMLEN + 1]; | |
2871 | ||
2872 | if (symndx == -1) | |
2873 | name = "*ABS*"; | |
2874 | else if (h != NULL) | |
2875 | name = NULL; | |
2876 | else if (sym->_n._n_n._n_zeroes == 0 | |
2877 | && sym->_n._n_n._n_offset != 0) | |
2878 | name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset; | |
2879 | else | |
2880 | { | |
2881 | strncpy (buf, sym->_n._n_name, SYMNMLEN); | |
2882 | buf[SYMNMLEN] = '\0'; | |
2883 | name = buf; | |
2884 | } | |
2885 | ||
2886 | (*info->callbacks->reloc_overflow) | |
2887 | (info, (h ? &h->root : NULL), name, howto->name, | |
2888 | (bfd_vma) 0, input_bfd, input_section, | |
2889 | rel->r_vaddr - input_section->vma); | |
2890 | } | |
2891 | } | |
2892 | } | |
2893 | ||
2894 | return TRUE; | |
2895 | } | |
2896 | ||
2897 | /* This is a version of bfd_generic_get_relocated_section_contents | |
2898 | which uses sh_relocate_section. */ | |
2899 | ||
2900 | static bfd_byte * | |
2901 | sh_coff_get_relocated_section_contents (bfd *output_bfd, | |
2902 | struct bfd_link_info *link_info, | |
2903 | struct bfd_link_order *link_order, | |
2904 | bfd_byte *data, | |
2905 | bfd_boolean relocatable, | |
2906 | asymbol **symbols) | |
2907 | { | |
2908 | asection *input_section = link_order->u.indirect.section; | |
2909 | bfd *input_bfd = input_section->owner; | |
2910 | asection **sections = NULL; | |
2911 | struct internal_reloc *internal_relocs = NULL; | |
2912 | struct internal_syment *internal_syms = NULL; | |
2913 | ||
2914 | /* We only need to handle the case of relaxing, or of having a | |
2915 | particular set of section contents, specially. */ | |
2916 | if (relocatable | |
2917 | || coff_section_data (input_bfd, input_section) == NULL | |
2918 | || coff_section_data (input_bfd, input_section)->contents == NULL) | |
2919 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
2920 | link_order, data, | |
2921 | relocatable, | |
2922 | symbols); | |
2923 | ||
2924 | memcpy (data, coff_section_data (input_bfd, input_section)->contents, | |
2925 | (size_t) input_section->size); | |
2926 | ||
2927 | if ((input_section->flags & SEC_RELOC) != 0 | |
2928 | && input_section->reloc_count > 0) | |
2929 | { | |
2930 | bfd_size_type symesz = bfd_coff_symesz (input_bfd); | |
2931 | bfd_byte *esym, *esymend; | |
2932 | struct internal_syment *isymp; | |
2933 | asection **secpp; | |
2934 | bfd_size_type amt; | |
2935 | ||
2936 | if (! _bfd_coff_get_external_symbols (input_bfd)) | |
2937 | goto error_return; | |
2938 | ||
2939 | internal_relocs = (_bfd_coff_read_internal_relocs | |
2940 | (input_bfd, input_section, FALSE, (bfd_byte *) NULL, | |
2941 | FALSE, (struct internal_reloc *) NULL)); | |
2942 | if (internal_relocs == NULL) | |
2943 | goto error_return; | |
2944 | ||
2945 | amt = obj_raw_syment_count (input_bfd); | |
2946 | amt *= sizeof (struct internal_syment); | |
2947 | internal_syms = (struct internal_syment *) bfd_malloc (amt); | |
2948 | if (internal_syms == NULL) | |
2949 | goto error_return; | |
2950 | ||
2951 | amt = obj_raw_syment_count (input_bfd); | |
2952 | amt *= sizeof (asection *); | |
2953 | sections = (asection **) bfd_malloc (amt); | |
2954 | if (sections == NULL) | |
2955 | goto error_return; | |
2956 | ||
2957 | isymp = internal_syms; | |
2958 | secpp = sections; | |
2959 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); | |
2960 | esymend = esym + obj_raw_syment_count (input_bfd) * symesz; | |
2961 | while (esym < esymend) | |
2962 | { | |
2963 | bfd_coff_swap_sym_in (input_bfd, esym, isymp); | |
2964 | ||
2965 | if (isymp->n_scnum != 0) | |
2966 | *secpp = coff_section_from_bfd_index (input_bfd, isymp->n_scnum); | |
2967 | else | |
2968 | { | |
2969 | if (isymp->n_value == 0) | |
2970 | *secpp = bfd_und_section_ptr; | |
2971 | else | |
2972 | *secpp = bfd_com_section_ptr; | |
2973 | } | |
2974 | ||
2975 | esym += (isymp->n_numaux + 1) * symesz; | |
2976 | secpp += isymp->n_numaux + 1; | |
2977 | isymp += isymp->n_numaux + 1; | |
2978 | } | |
2979 | ||
2980 | if (! sh_relocate_section (output_bfd, link_info, input_bfd, | |
2981 | input_section, data, internal_relocs, | |
2982 | internal_syms, sections)) | |
2983 | goto error_return; | |
2984 | ||
2985 | free (sections); | |
2986 | sections = NULL; | |
2987 | free (internal_syms); | |
2988 | internal_syms = NULL; | |
2989 | free (internal_relocs); | |
2990 | internal_relocs = NULL; | |
2991 | } | |
2992 | ||
2993 | return data; | |
2994 | ||
2995 | error_return: | |
2996 | free (internal_relocs); | |
2997 | free (internal_syms); | |
2998 | free (sections); | |
2999 | return NULL; | |
3000 | } | |
3001 | ||
3002 | /* The target vectors. */ | |
3003 | ||
3004 | #ifndef TARGET_SHL_SYM | |
3005 | CREATE_BIG_COFF_TARGET_VEC (sh_coff_vec, "coff-sh", BFD_IS_RELAXABLE, 0, '_', NULL, COFF_SWAP_TABLE) | |
3006 | #endif | |
3007 | ||
3008 | #ifdef TARGET_SHL_SYM | |
3009 | #define TARGET_SYM TARGET_SHL_SYM | |
3010 | #else | |
3011 | #define TARGET_SYM sh_coff_le_vec | |
3012 | #endif | |
3013 | ||
3014 | #ifndef TARGET_SHL_NAME | |
3015 | #define TARGET_SHL_NAME "coff-shl" | |
3016 | #endif | |
3017 | ||
3018 | #ifdef COFF_WITH_PE | |
3019 | CREATE_LITTLE_COFF_TARGET_VEC (TARGET_SYM, TARGET_SHL_NAME, BFD_IS_RELAXABLE, | |
3020 | SEC_CODE | SEC_DATA, '_', NULL, COFF_SWAP_TABLE); | |
3021 | #else | |
3022 | CREATE_LITTLE_COFF_TARGET_VEC (TARGET_SYM, TARGET_SHL_NAME, BFD_IS_RELAXABLE, | |
3023 | 0, '_', NULL, COFF_SWAP_TABLE) | |
3024 | #endif | |
3025 | ||
3026 | #ifndef TARGET_SHL_SYM | |
3027 | ||
3028 | /* Some people want versions of the SH COFF target which do not align | |
3029 | to 16 byte boundaries. We implement that by adding a couple of new | |
3030 | target vectors. These are just like the ones above, but they | |
3031 | change the default section alignment. To generate them in the | |
3032 | assembler, use -small. To use them in the linker, use -b | |
3033 | coff-sh{l}-small and -oformat coff-sh{l}-small. | |
3034 | ||
3035 | Yes, this is a horrible hack. A general solution for setting | |
3036 | section alignment in COFF is rather complex. ELF handles this | |
3037 | correctly. */ | |
3038 | ||
3039 | /* Only recognize the small versions if the target was not defaulted. | |
3040 | Otherwise we won't recognize the non default endianness. */ | |
3041 | ||
3042 | static bfd_cleanup | |
3043 | coff_small_object_p (bfd *abfd) | |
3044 | { | |
3045 | if (abfd->target_defaulted) | |
3046 | { | |
3047 | bfd_set_error (bfd_error_wrong_format); | |
3048 | return NULL; | |
3049 | } | |
3050 | return coff_object_p (abfd); | |
3051 | } | |
3052 | ||
3053 | /* Set the section alignment for the small versions. */ | |
3054 | ||
3055 | static bfd_boolean | |
3056 | coff_small_new_section_hook (bfd *abfd, asection *section) | |
3057 | { | |
3058 | if (! coff_new_section_hook (abfd, section)) | |
3059 | return FALSE; | |
3060 | ||
3061 | /* We must align to at least a four byte boundary, because longword | |
3062 | accesses must be on a four byte boundary. */ | |
3063 | if (section->alignment_power == COFF_DEFAULT_SECTION_ALIGNMENT_POWER) | |
3064 | section->alignment_power = 2; | |
3065 | ||
3066 | return TRUE; | |
3067 | } | |
3068 | ||
3069 | /* This is copied from bfd_coff_std_swap_table so that we can change | |
3070 | the default section alignment power. */ | |
3071 | ||
3072 | static bfd_coff_backend_data bfd_coff_small_swap_table = | |
3073 | { | |
3074 | coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in, | |
3075 | coff_swap_aux_out, coff_swap_sym_out, | |
3076 | coff_swap_lineno_out, coff_swap_reloc_out, | |
3077 | coff_swap_filehdr_out, coff_swap_aouthdr_out, | |
3078 | coff_swap_scnhdr_out, | |
3079 | FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, FILNMLEN, | |
3080 | #ifdef COFF_LONG_FILENAMES | |
3081 | TRUE, | |
3082 | #else | |
3083 | FALSE, | |
3084 | #endif | |
3085 | COFF_DEFAULT_LONG_SECTION_NAMES, | |
3086 | 2, | |
3087 | #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS | |
3088 | TRUE, | |
3089 | #else | |
3090 | FALSE, | |
3091 | #endif | |
3092 | #ifdef COFF_DEBUG_STRING_WIDE_PREFIX | |
3093 | 4, | |
3094 | #else | |
3095 | 2, | |
3096 | #endif | |
3097 | 32768, | |
3098 | coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in, | |
3099 | coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, | |
3100 | coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, | |
3101 | coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, | |
3102 | coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, | |
3103 | coff_classify_symbol, coff_compute_section_file_positions, | |
3104 | coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, | |
3105 | coff_adjust_symndx, coff_link_add_one_symbol, | |
3106 | coff_link_output_has_begun, coff_final_link_postscript, | |
3107 | bfd_pe_print_pdata | |
3108 | }; | |
3109 | ||
3110 | #define coff_small_close_and_cleanup \ | |
3111 | coff_close_and_cleanup | |
3112 | #define coff_small_bfd_free_cached_info \ | |
3113 | coff_bfd_free_cached_info | |
3114 | #define coff_small_get_section_contents \ | |
3115 | coff_get_section_contents | |
3116 | #define coff_small_get_section_contents_in_window \ | |
3117 | coff_get_section_contents_in_window | |
3118 | ||
3119 | extern const bfd_target sh_coff_small_le_vec; | |
3120 | ||
3121 | const bfd_target sh_coff_small_vec = | |
3122 | { | |
3123 | "coff-sh-small", /* name */ | |
3124 | bfd_target_coff_flavour, | |
3125 | BFD_ENDIAN_BIG, /* data byte order is big */ | |
3126 | BFD_ENDIAN_BIG, /* header byte order is big */ | |
3127 | ||
3128 | (HAS_RELOC | EXEC_P /* object flags */ | |
3129 | | HAS_LINENO | HAS_DEBUG | |
3130 | | HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE), | |
3131 | ||
3132 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), | |
3133 | '_', /* leading symbol underscore */ | |
3134 | '/', /* ar_pad_char */ | |
3135 | 15, /* ar_max_namelen */ | |
3136 | 0, /* match priority. */ | |
3137 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
3138 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
3139 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
3140 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
3141 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
3142 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
3143 | ||
3144 | { /* bfd_check_format */ | |
3145 | _bfd_dummy_target, | |
3146 | coff_small_object_p, | |
3147 | bfd_generic_archive_p, | |
3148 | _bfd_dummy_target | |
3149 | }, | |
3150 | { /* bfd_set_format */ | |
3151 | _bfd_bool_bfd_false_error, | |
3152 | coff_mkobject, | |
3153 | _bfd_generic_mkarchive, | |
3154 | _bfd_bool_bfd_false_error | |
3155 | }, | |
3156 | { /* bfd_write_contents */ | |
3157 | _bfd_bool_bfd_false_error, | |
3158 | coff_write_object_contents, | |
3159 | _bfd_write_archive_contents, | |
3160 | _bfd_bool_bfd_false_error | |
3161 | }, | |
3162 | ||
3163 | BFD_JUMP_TABLE_GENERIC (coff_small), | |
3164 | BFD_JUMP_TABLE_COPY (coff), | |
3165 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
3166 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
3167 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
3168 | BFD_JUMP_TABLE_RELOCS (coff), | |
3169 | BFD_JUMP_TABLE_WRITE (coff), | |
3170 | BFD_JUMP_TABLE_LINK (coff), | |
3171 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
3172 | ||
3173 | &sh_coff_small_le_vec, | |
3174 | ||
3175 | &bfd_coff_small_swap_table | |
3176 | }; | |
3177 | ||
3178 | const bfd_target sh_coff_small_le_vec = | |
3179 | { | |
3180 | "coff-shl-small", /* name */ | |
3181 | bfd_target_coff_flavour, | |
3182 | BFD_ENDIAN_LITTLE, /* data byte order is little */ | |
3183 | BFD_ENDIAN_LITTLE, /* header byte order is little endian too*/ | |
3184 | ||
3185 | (HAS_RELOC | EXEC_P /* object flags */ | |
3186 | | HAS_LINENO | HAS_DEBUG | |
3187 | | HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE), | |
3188 | ||
3189 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), | |
3190 | '_', /* leading symbol underscore */ | |
3191 | '/', /* ar_pad_char */ | |
3192 | 15, /* ar_max_namelen */ | |
3193 | 0, /* match priority. */ | |
3194 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
3195 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
3196 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
3197 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
3198 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
3199 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
3200 | ||
3201 | { /* bfd_check_format */ | |
3202 | _bfd_dummy_target, | |
3203 | coff_small_object_p, | |
3204 | bfd_generic_archive_p, | |
3205 | _bfd_dummy_target | |
3206 | }, | |
3207 | { /* bfd_set_format */ | |
3208 | _bfd_bool_bfd_false_error, | |
3209 | coff_mkobject, | |
3210 | _bfd_generic_mkarchive, | |
3211 | _bfd_bool_bfd_false_error | |
3212 | }, | |
3213 | { /* bfd_write_contents */ | |
3214 | _bfd_bool_bfd_false_error, | |
3215 | coff_write_object_contents, | |
3216 | _bfd_write_archive_contents, | |
3217 | _bfd_bool_bfd_false_error | |
3218 | }, | |
3219 | ||
3220 | BFD_JUMP_TABLE_GENERIC (coff_small), | |
3221 | BFD_JUMP_TABLE_COPY (coff), | |
3222 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
3223 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
3224 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
3225 | BFD_JUMP_TABLE_RELOCS (coff), | |
3226 | BFD_JUMP_TABLE_WRITE (coff), | |
3227 | BFD_JUMP_TABLE_LINK (coff), | |
3228 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
3229 | ||
3230 | &sh_coff_small_vec, | |
3231 | ||
3232 | &bfd_coff_small_swap_table | |
3233 | }; | |
3234 | #endif |