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x86: Define GNU_PROPERTY_X86_ISA_1_AVX512_BF16
[deliverable/binutils-gdb.git] / bfd / elf32-cr16.c
CommitLineData
3d3d428f 1/* BFD back-end for National Semiconductor's CR16 ELF
82704155 2 Copyright (C) 2007-2019 Free Software Foundation, Inc.
3d3d428f
NC		 3 Written by M R Swami Reddy.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
3d3d428f
NC		 10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software Foundation,
19 Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
20
21#include "sysdep.h"
22#include "bfd.h"
23#include "bfdlink.h"
24#include "libbfd.h"
25#include "libiberty.h"
26#include "elf-bfd.h"
27#include "elf/cr16.h"
28
99706f30
SR		 29/* The cr16 linker needs to keep track of the number of relocs that
30 it decides to copy in check_relocs for each symbol. This is so
31 that it can discard PC relative relocs if it doesn't need them when
32 linking with -Bsymbolic. We store the information in a field
33 extending the regular ELF linker hash table. */
34
4dfe6ac6
NC		 35struct elf32_cr16_link_hash_entry
36{
99706f30
SR		 37 /* The basic elf link hash table entry. */
38 struct elf_link_hash_entry root;
39
40 /* For function symbols, the number of times this function is
41 called directly (ie by name). */
42 unsigned int direct_calls;
43
44 /* For function symbols, the size of this function's stack
45 (if <= 255 bytes). We stuff this into "call" instructions
46 to this target when it's valid and profitable to do so.
47
48 This does not include stack allocated by movm! */
49 unsigned char stack_size;
50
51 /* For function symbols, arguments (if any) for movm instruction
52 in the prologue. We stuff this value into "call" instructions
53 to the target when it's valid and profitable to do so. */
54 unsigned char movm_args;
55
56 /* For function symbols, the amount of stack space that would be allocated
57 by the movm instruction. This is redundant with movm_args, but we
58 add it to the hash table to avoid computing it over and over. */
59 unsigned char movm_stack_size;
60
61/* Used to mark functions which have had redundant parts of their
62 prologue deleted. */
63#define CR16_DELETED_PROLOGUE_BYTES 0x1
64 unsigned char flags;
65
66 /* Calculated value. */
67 bfd_vma value;
68};
69
3d3d428f
NC		 70/* cr16_reloc_map array maps BFD relocation enum into a CRGAS relocation type. */
71
72struct cr16_reloc_map
73{
74 bfd_reloc_code_real_type bfd_reloc_enum; /* BFD relocation enum. */
07d6d2b8 75 unsigned short cr16_reloc_type; /* CR16 relocation type. */
3d3d428f
NC		 76};
77
78static const struct cr16_reloc_map cr16_reloc_map[R_CR16_MAX] =
79{
07d6d2b8
AM		 80 {BFD_RELOC_NONE, R_CR16_NONE},
81 {BFD_RELOC_CR16_NUM8, R_CR16_NUM8},
3d3d428f
NC		 82 {BFD_RELOC_CR16_NUM16, R_CR16_NUM16},
83 {BFD_RELOC_CR16_NUM32, R_CR16_NUM32},
84 {BFD_RELOC_CR16_NUM32a, R_CR16_NUM32a},
85 {BFD_RELOC_CR16_REGREL4, R_CR16_REGREL4},
86 {BFD_RELOC_CR16_REGREL4a, R_CR16_REGREL4a},
87 {BFD_RELOC_CR16_REGREL14, R_CR16_REGREL14},
88 {BFD_RELOC_CR16_REGREL14a, R_CR16_REGREL14a},
89 {BFD_RELOC_CR16_REGREL16, R_CR16_REGREL16},
90 {BFD_RELOC_CR16_REGREL20, R_CR16_REGREL20},
91 {BFD_RELOC_CR16_REGREL20a, R_CR16_REGREL20a},
92 {BFD_RELOC_CR16_ABS20, R_CR16_ABS20},
93 {BFD_RELOC_CR16_ABS24, R_CR16_ABS24},
07d6d2b8
AM		 94 {BFD_RELOC_CR16_IMM4, R_CR16_IMM4},
95 {BFD_RELOC_CR16_IMM8, R_CR16_IMM8},
3d3d428f
NC		 96 {BFD_RELOC_CR16_IMM16, R_CR16_IMM16},
97 {BFD_RELOC_CR16_IMM20, R_CR16_IMM20},
98 {BFD_RELOC_CR16_IMM24, R_CR16_IMM24},
99 {BFD_RELOC_CR16_IMM32, R_CR16_IMM32},
100 {BFD_RELOC_CR16_IMM32a, R_CR16_IMM32a},
101 {BFD_RELOC_CR16_DISP4, R_CR16_DISP4},
102 {BFD_RELOC_CR16_DISP8, R_CR16_DISP8},
103 {BFD_RELOC_CR16_DISP16, R_CR16_DISP16},
104 {BFD_RELOC_CR16_DISP24, R_CR16_DISP24},
7fac7ff4
NC		 105 {BFD_RELOC_CR16_DISP24a, R_CR16_DISP24a},
106 {BFD_RELOC_CR16_SWITCH8, R_CR16_SWITCH8},
107 {BFD_RELOC_CR16_SWITCH16, R_CR16_SWITCH16},
99706f30
SR		 108 {BFD_RELOC_CR16_SWITCH32, R_CR16_SWITCH32},
109 {BFD_RELOC_CR16_GOT_REGREL20, R_CR16_GOT_REGREL20},
110 {BFD_RELOC_CR16_GOTC_REGREL20, R_CR16_GOTC_REGREL20},
111 {BFD_RELOC_CR16_GLOB_DAT, R_CR16_GLOB_DAT}
3d3d428f
NC		 112};
113
114static reloc_howto_type cr16_elf_howto_table[] =
115{
07d6d2b8
AM		 116 HOWTO (R_CR16_NONE, /* type */
117 0, /* rightshift */
118 3, /* size */
119 0, /* bitsize */
120 FALSE, /* pc_relative */
121 0, /* bitpos */
122 complain_overflow_dont, /* complain_on_overflow */
123 bfd_elf_generic_reloc, /* special_function */
124 "R_CR16_NONE", /* name */
125 FALSE, /* partial_inplace */
126 0, /* src_mask */
127 0, /* dst_mask */
128 FALSE), /* pcrel_offset */
129
130 HOWTO (R_CR16_NUM8, /* type */
131 0, /* rightshift */
132 0, /* size */
133 8, /* bitsize */
134 FALSE, /* pc_relative */
135 0, /* bitpos */
136 complain_overflow_bitfield,/* complain_on_overflow */
137 bfd_elf_generic_reloc, /* special_function */
138 "R_CR16_NUM8", /* name */
139 FALSE, /* partial_inplace */
140 0x0, /* src_mask */
141 0xff, /* dst_mask */
142 FALSE), /* pcrel_offset */
143
144 HOWTO (R_CR16_NUM16, /* type */
145 0, /* rightshift */
146 1, /* size */
147 16, /* bitsize */
148 FALSE, /* pc_relative */
149 0, /* bitpos */
150 complain_overflow_bitfield,/* complain_on_overflow */
151 bfd_elf_generic_reloc, /* special_function */
152 "R_CR16_NUM16", /* name */
153 FALSE, /* partial_inplace */
154 0x0, /* src_mask */
155 0xffff, /* dst_mask */
156 FALSE), /* pcrel_offset */
157
158 HOWTO (R_CR16_NUM32, /* type */
159 0, /* rightshift */
160 2, /* size */
161 32, /* bitsize */
162 FALSE, /* pc_relative */
163 0, /* bitpos */
164 complain_overflow_bitfield,/* complain_on_overflow */
165 bfd_elf_generic_reloc, /* special_function */
166 "R_CR16_NUM32", /* name */
167 FALSE, /* partial_inplace */
168 0x0, /* src_mask */
169 0xffffffff, /* dst_mask */
170 FALSE), /* pcrel_offset */
171
172 HOWTO (R_CR16_NUM32a, /* type */
173 1, /* rightshift */
174 2, /* size */
175 32, /* bitsize */
176 FALSE, /* pc_relative */
177 0, /* bitpos */
178 complain_overflow_bitfield,/* complain_on_overflow */
179 bfd_elf_generic_reloc, /* special_function */
180 "R_CR16_NUM32a", /* name */
181 FALSE, /* partial_inplace */
182 0x0, /* src_mask */
183 0xffffffff, /* dst_mask */
184 FALSE), /* pcrel_offset */
185
186 HOWTO (R_CR16_REGREL4, /* type */
187 0, /* rightshift */
188 0, /* size */
189 4, /* bitsize */
190 FALSE, /* pc_relative */
191 0, /* bitpos */
192 complain_overflow_bitfield,/* complain_on_overflow */
193 bfd_elf_generic_reloc, /* special_function */
194 "R_CR16_REGREL4", /* name */
195 FALSE, /* partial_inplace */
196 0x0, /* src_mask */
197 0xf, /* dst_mask */
198 FALSE), /* pcrel_offset */
199
200 HOWTO (R_CR16_REGREL4a, /* type */
201 0, /* rightshift */
202 0, /* size */
203 4, /* bitsize */
204 FALSE, /* pc_relative */
205 0, /* bitpos */
206 complain_overflow_bitfield,/* complain_on_overflow */
207 bfd_elf_generic_reloc, /* special_function */
208 "R_CR16_REGREL4a", /* name */
209 FALSE, /* partial_inplace */
210 0x0, /* src_mask */
211 0xf, /* dst_mask */
212 FALSE), /* pcrel_offset */
213
214 HOWTO (R_CR16_REGREL14, /* type */
215 0, /* rightshift */
216 1, /* size */
217 14, /* bitsize */
218 FALSE, /* pc_relative */
219 0, /* bitpos */
220 complain_overflow_bitfield,/* complain_on_overflow */
221 bfd_elf_generic_reloc, /* special_function */
222 "R_CR16_REGREL14", /* name */
223 FALSE, /* partial_inplace */
224 0x0, /* src_mask */
225 0x3fff, /* dst_mask */
226 FALSE), /* pcrel_offset */
227
228 HOWTO (R_CR16_REGREL14a, /* type */
229 0, /* rightshift */
230 1, /* size */
231 14, /* bitsize */
232 FALSE, /* pc_relative */
233 0, /* bitpos */
234 complain_overflow_bitfield,/* complain_on_overflow */
235 bfd_elf_generic_reloc, /* special_function */
236 "R_CR16_REGREL14a", /* name */
237 FALSE, /* partial_inplace */
238 0x0, /* src_mask */
239 0x3fff, /* dst_mask */
240 FALSE), /* pcrel_offset */
241
242 HOWTO (R_CR16_REGREL16, /* type */
243 0, /* rightshift */
244 1, /* size */
245 16, /* bitsize */
246 FALSE, /* pc_relative */
247 0, /* bitpos */
248 complain_overflow_bitfield,/* complain_on_overflow */
249 bfd_elf_generic_reloc, /* special_function */
250 "R_CR16_REGREL16", /* name */
251 FALSE, /* partial_inplace */
252 0x0, /* src_mask */
253 0xffff, /* dst_mask */
254 FALSE), /* pcrel_offset */
255
256 HOWTO (R_CR16_REGREL20, /* type */
257 0, /* rightshift */
258 2, /* size */
259 20, /* bitsize */
260 FALSE, /* pc_relative */
261 0, /* bitpos */
262 complain_overflow_bitfield,/* complain_on_overflow */
263 bfd_elf_generic_reloc, /* special_function */
264 "R_CR16_REGREL20", /* name */
265 FALSE, /* partial_inplace */
266 0x0, /* src_mask */
267 0xfffff, /* dst_mask */
268 FALSE), /* pcrel_offset */
269
270 HOWTO (R_CR16_REGREL20a, /* type */
271 0, /* rightshift */
272 2, /* size */
273 20, /* bitsize */
274 FALSE, /* pc_relative */
275 0, /* bitpos */
276 complain_overflow_bitfield,/* complain_on_overflow */
277 bfd_elf_generic_reloc, /* special_function */
278 "R_CR16_REGREL20a", /* name */
279 FALSE, /* partial_inplace */
280 0x0, /* src_mask */
281 0xfffff, /* dst_mask */
282 FALSE), /* pcrel_offset */
283
284 HOWTO (R_CR16_ABS20, /* type */
285 0, /* rightshift */
286 2, /* size */
287 20, /* bitsize */
288 FALSE, /* pc_relative */
289 0, /* bitpos */
290 complain_overflow_bitfield,/* complain_on_overflow */
291 bfd_elf_generic_reloc, /* special_function */
292 "R_CR16_ABS20", /* name */
293 FALSE, /* partial_inplace */
294 0x0, /* src_mask */
295 0xfffff, /* dst_mask */
296 FALSE), /* pcrel_offset */
297
298 HOWTO (R_CR16_ABS24, /* type */
299 0, /* rightshift */
300 2, /* size */
301 24, /* bitsize */
302 FALSE, /* pc_relative */
303 0, /* bitpos */
304 complain_overflow_bitfield,/* complain_on_overflow */
305 bfd_elf_generic_reloc, /* special_function */
306 "R_CR16_ABS24", /* name */
307 FALSE, /* partial_inplace */
308 0x0, /* src_mask */
309 0xffffff, /* dst_mask */
310 FALSE), /* pcrel_offset */
311
312 HOWTO (R_CR16_IMM4, /* type */
313 0, /* rightshift */
314 0, /* size */
315 4, /* bitsize */
316 FALSE, /* pc_relative */
317 0, /* bitpos */
318 complain_overflow_bitfield,/* complain_on_overflow */
319 bfd_elf_generic_reloc, /* special_function */
320 "R_CR16_IMM4", /* name */
321 FALSE, /* partial_inplace */
322 0x0, /* src_mask */
323 0xf, /* dst_mask */
324 FALSE), /* pcrel_offset */
325
326 HOWTO (R_CR16_IMM8, /* type */
327 0, /* rightshift */
328 0, /* size */
329 8, /* bitsize */
330 FALSE, /* pc_relative */
331 0, /* bitpos */
332 complain_overflow_bitfield,/* complain_on_overflow */
333 bfd_elf_generic_reloc, /* special_function */
334 "R_CR16_IMM8", /* name */
335 FALSE, /* partial_inplace */
336 0x0, /* src_mask */
337 0xff, /* dst_mask */
338 FALSE), /* pcrel_offset */
339
340 HOWTO (R_CR16_IMM16, /* type */
341 0, /* rightshift */
342 1, /* size */
343 16, /* bitsize */
344 FALSE, /* pc_relative */
345 0, /* bitpos */
346 complain_overflow_bitfield,/* complain_on_overflow */
347 bfd_elf_generic_reloc, /* special_function */
348 "R_CR16_IMM16", /* name */
349 FALSE, /* partial_inplace */
350 0x0, /* src_mask */
351 0xffff, /* dst_mask */
352 FALSE), /* pcrel_offset */
353
354 HOWTO (R_CR16_IMM20, /* type */
355 0, /* rightshift */
356 2, /* size */
357 20, /* bitsize */
358 FALSE, /* pc_relative */
359 0, /* bitpos */
360 complain_overflow_bitfield,/* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_CR16_IMM20", /* name */
363 FALSE, /* partial_inplace */
364 0x0, /* src_mask */
365 0xfffff, /* dst_mask */
366 FALSE), /* pcrel_offset */
367
368 HOWTO (R_CR16_IMM24, /* type */
369 0, /* rightshift */
370 2, /* size */
371 24, /* bitsize */
372 FALSE, /* pc_relative */
373 0, /* bitpos */
374 complain_overflow_bitfield,/* complain_on_overflow */
375 bfd_elf_generic_reloc, /* special_function */
376 "R_CR16_IMM24", /* name */
377 FALSE, /* partial_inplace */
378 0x0, /* src_mask */
379 0xffffff, /* dst_mask */
380 FALSE), /* pcrel_offset */
381
382 HOWTO (R_CR16_IMM32, /* type */
383 0, /* rightshift */
384 2, /* size */
385 32, /* bitsize */
386 FALSE, /* pc_relative */
387 0, /* bitpos */
388 complain_overflow_bitfield,/* complain_on_overflow */
389 bfd_elf_generic_reloc, /* special_function */
390 "R_CR16_IMM32", /* name */
391 FALSE, /* partial_inplace */
392 0x0, /* src_mask */
393 0xffffffff, /* dst_mask */
394 FALSE), /* pcrel_offset */
395
396 HOWTO (R_CR16_IMM32a, /* type */
397 1, /* rightshift */
398 2, /* size */
399 32, /* bitsize */
400 FALSE, /* pc_relative */
401 0, /* bitpos */
402 complain_overflow_bitfield,/* complain_on_overflow */
403 bfd_elf_generic_reloc, /* special_function */
404 "R_CR16_IMM32a", /* name */
405 FALSE, /* partial_inplace */
406 0x0, /* src_mask */
407 0xffffffff, /* dst_mask */
408 FALSE), /* pcrel_offset */
409
410 HOWTO (R_CR16_DISP4, /* type */
411 1, /* rightshift */
412 0, /* size (0 = byte, 1 = short, 2 = long) */
413 4, /* bitsize */
414 TRUE, /* pc_relative */
415 0, /* bitpos */
416 complain_overflow_unsigned, /* complain_on_overflow */
417 bfd_elf_generic_reloc, /* special_function */
418 "R_CR16_DISP4", /* name */
419 FALSE, /* partial_inplace */
420 0x0, /* src_mask */
421 0xf, /* dst_mask */
422 FALSE), /* pcrel_offset */
423
424 HOWTO (R_CR16_DISP8, /* type */
425 1, /* rightshift */
426 0, /* size (0 = byte, 1 = short, 2 = long) */
427 8, /* bitsize */
428 TRUE, /* pc_relative */
429 0, /* bitpos */
430 complain_overflow_unsigned, /* complain_on_overflow */
431 bfd_elf_generic_reloc, /* special_function */
432 "R_CR16_DISP8", /* name */
433 FALSE, /* partial_inplace */
434 0x0, /* src_mask */
435 0x1ff, /* dst_mask */
436 FALSE), /* pcrel_offset */
437
438 HOWTO (R_CR16_DISP16, /* type */
439 0, /* rightshift REVIITS: To sync with WinIDEA*/
440 1, /* size (0 = byte, 1 = short, 2 = long) */
441 16, /* bitsize */
442 TRUE, /* pc_relative */
443 0, /* bitpos */
444 complain_overflow_unsigned, /* complain_on_overflow */
445 bfd_elf_generic_reloc, /* special_function */
446 "R_CR16_DISP16", /* name */
447 FALSE, /* partial_inplace */
448 0x0, /* src_mask */
449 0x1ffff, /* dst_mask */
450 FALSE), /* pcrel_offset */
3d3d428f
NC		 451 /* REVISIT: DISP24 should be left-shift by 2 as per ISA doc
452 but its not done, to sync with WinIDEA and CR16 4.1 tools */
07d6d2b8
AM		 453 HOWTO (R_CR16_DISP24, /* type */
454 0, /* rightshift */
455 2, /* size (0 = byte, 1 = short, 2 = long) */
456 24, /* bitsize */
457 TRUE, /* pc_relative */
458 0, /* bitpos */
459 complain_overflow_unsigned, /* complain_on_overflow */
460 bfd_elf_generic_reloc, /* special_function */
461 "R_CR16_DISP24", /* name */
462 FALSE, /* partial_inplace */
463 0x0, /* src_mask */
464 0x1ffffff, /* dst_mask */
465 FALSE), /* pcrel_offset */
466
467 HOWTO (R_CR16_DISP24a, /* type */
468 0, /* rightshift */
469 2, /* size (0 = byte, 1 = short, 2 = long) */
470 24, /* bitsize */
471 TRUE, /* pc_relative */
472 0, /* bitpos */
473 complain_overflow_unsigned, /* complain_on_overflow */
474 bfd_elf_generic_reloc, /* special_function */
475 "R_CR16_DISP24a", /* name */
476 FALSE, /* partial_inplace */
477 0x0, /* src_mask */
478 0xffffff, /* dst_mask */
479 FALSE), /* pcrel_offset */
7fac7ff4
NC		 480
481 /* An 8 bit switch table entry. This is generated for an expression
482 such as ``.byte L1 - L2''. The offset holds the difference
483 between the reloc address and L2. */
07d6d2b8
AM		 484 HOWTO (R_CR16_SWITCH8, /* type */
485 0, /* rightshift */
486 0, /* size (0 = byte, 1 = short, 2 = long) */
487 8, /* bitsize */
488 FALSE, /* pc_relative */
489 0, /* bitpos */
490 complain_overflow_unsigned, /* complain_on_overflow */
491 bfd_elf_generic_reloc, /* special_function */
492 "R_CR16_SWITCH8", /* name */
493 FALSE, /* partial_inplace */
494 0x0, /* src_mask */
495 0xff, /* dst_mask */
496 TRUE), /* pcrel_offset */
7fac7ff4
NC		 497
498 /* A 16 bit switch table entry. This is generated for an expression
499 such as ``.word L1 - L2''. The offset holds the difference
500 between the reloc address and L2. */
07d6d2b8
AM		 501 HOWTO (R_CR16_SWITCH16, /* type */
502 0, /* rightshift */
503 1, /* size (0 = byte, 1 = short, 2 = long) */
504 16, /* bitsize */
505 FALSE, /* pc_relative */
506 0, /* bitpos */
507 complain_overflow_unsigned, /* complain_on_overflow */
508 bfd_elf_generic_reloc, /* special_function */
509 "R_CR16_SWITCH16", /* name */
510 FALSE, /* partial_inplace */
511 0x0, /* src_mask */
512 0xffff, /* dst_mask */
513 TRUE), /* pcrel_offset */
7fac7ff4
NC		 514
515 /* A 32 bit switch table entry. This is generated for an expression
516 such as ``.long L1 - L2''. The offset holds the difference
517 between the reloc address and L2. */
07d6d2b8
AM		 518 HOWTO (R_CR16_SWITCH32, /* type */
519 0, /* rightshift */
520 2, /* size (0 = byte, 1 = short, 2 = long) */
521 32, /* bitsize */
522 FALSE, /* pc_relative */
523 0, /* bitpos */
524 complain_overflow_unsigned, /* complain_on_overflow */
525 bfd_elf_generic_reloc, /* special_function */
526 "R_CR16_SWITCH32", /* name */
527 FALSE, /* partial_inplace */
528 0x0, /* src_mask */
529 0xffffffff, /* dst_mask */
530 TRUE), /* pcrel_offset */
531
532 HOWTO (R_CR16_GOT_REGREL20, /* type */
533 0, /* rightshift */
534 2, /* size */
535 20, /* bitsize */
536 FALSE, /* pc_relative */
537 0, /* bitpos */
538 complain_overflow_bitfield,/* complain_on_overflow */
539 bfd_elf_generic_reloc, /* special_function */
540 "R_CR16_GOT_REGREL20", /* name */
541 TRUE, /* partial_inplace */
542 0x0, /* src_mask */
543 0xfffff, /* dst_mask */
544 FALSE), /* pcrel_offset */
545
546 HOWTO (R_CR16_GOTC_REGREL20, /* type */
547 0, /* rightshift */
548 2, /* size */
549 20, /* bitsize */
550 FALSE, /* pc_relative */
551 0, /* bitpos */
552 complain_overflow_bitfield,/* complain_on_overflow */
553 bfd_elf_generic_reloc, /* special_function */
554 "R_CR16_GOTC_REGREL20", /* name */
555 TRUE, /* partial_inplace */
556 0x0, /* src_mask */
557 0xfffff, /* dst_mask */
558 FALSE), /* pcrel_offset */
559
560 HOWTO (R_CR16_GLOB_DAT, /* type */
561 0, /* rightshift */
562 2, /* size (0 = byte, 1 = short, 2 = long) */
563 32, /* bitsize */
564 FALSE, /* pc_relative */
565 0, /* bitpos */
566 complain_overflow_unsigned, /* complain_on_overflow */
567 bfd_elf_generic_reloc, /* special_function */
568 "R_CR16_GLOB_DAT", /* name */
569 FALSE, /* partial_inplace */
570 0x0, /* src_mask */
571 0xffffffff, /* dst_mask */
572 TRUE) /* pcrel_offset */
3d3d428f
NC		 573};
574
99706f30
SR		 575
576/* Create the GOT section. */
577
578static bfd_boolean
579_bfd_cr16_elf_create_got_section (bfd * abfd, struct bfd_link_info * info)
580{
581 flagword flags;
582 asection * s;
583 struct elf_link_hash_entry * h;
584 const struct elf_backend_data * bed = get_elf_backend_data (abfd);
ce558b89 585 struct elf_link_hash_table *htab = elf_hash_table (info);
99706f30
SR		 586 int ptralign;
587
588 /* This function may be called more than once. */
ce558b89 589 if (htab->sgot != NULL)
99706f30
SR		 590 return TRUE;
591
592 switch (bed->s->arch_size)
593 {
594 case 16:
595 ptralign = 1;
596 break;
597
598 case 32:
599 ptralign = 2;
600 break;
601
602 default:
603 bfd_set_error (bfd_error_bad_value);
604 return FALSE;
605 }
606
607 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
07d6d2b8 608 | SEC_LINKER_CREATED);
99706f30 609
3d4d4302 610 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
ce558b89 611 htab->sgot= s;
99706f30
SR		 612 if (s == NULL
613 || ! bfd_set_section_alignment (abfd, s, ptralign))
614 return FALSE;
615
616 if (bed->want_got_plt)
617 {
3d4d4302 618 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
ce558b89 619 htab->sgotplt = s;
99706f30 620 if (s == NULL
07d6d2b8
AM		 621 || ! bfd_set_section_alignment (abfd, s, ptralign))
622 return FALSE;
99706f30
SR		 623 }
624
625 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
626 (or .got.plt) section. We don't do this in the linker script
627 because we don't want to define the symbol if we are not creating
628 a global offset table. */
629 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
ce558b89 630 htab->hgot = h;
99706f30
SR		 631 if (h == NULL)
632 return FALSE;
633
634 /* The first bit of the global offset table is the header. */
635 s->size += bed->got_header_size;
636
637 return TRUE;
638}
639
640
3d3d428f
NC		 641/* Retrieve a howto ptr using a BFD reloc_code. */
642
643static reloc_howto_type *
0aa13fee 644elf_cr16_reloc_type_lookup (bfd *abfd,
07d6d2b8 645 bfd_reloc_code_real_type code)
3d3d428f
NC		 646{
647 unsigned int i;
648
649 for (i = 0; i < R_CR16_MAX; i++)
650 if (code == cr16_reloc_map[i].bfd_reloc_enum)
651 return &cr16_elf_howto_table[cr16_reloc_map[i].cr16_reloc_type];
652
0aa13fee
AM		 653 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
654 abfd, code);
3d3d428f
NC		 655 return NULL;
656}
657
658static reloc_howto_type *
659elf_cr16_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
07d6d2b8 660 const char *r_name)
3d3d428f
NC		 661{
662 unsigned int i;
663
664 for (i = 0; ARRAY_SIZE (cr16_elf_howto_table); i++)
665 if (cr16_elf_howto_table[i].name != NULL
07d6d2b8 666 && strcasecmp (cr16_elf_howto_table[i].name, r_name) == 0)
3d3d428f
NC		 667 return cr16_elf_howto_table + i;
668
669 return NULL;
670}
671
672/* Retrieve a howto ptr using an internal relocation entry. */
673
f3185997 674static bfd_boolean
0aa13fee 675elf_cr16_info_to_howto (bfd *abfd, arelent *cache_ptr,
07d6d2b8 676 Elf_Internal_Rela *dst)
3d3d428f
NC		 677{
678 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
679
cd21f5da
NC		 680 if (r_type >= R_CR16_MAX)
681 {
695344c0 682 /* xgettext:c-format */
0aa13fee 683 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4eca0228 684 abfd, r_type);
cd21f5da 685 bfd_set_error (bfd_error_bad_value);
f3185997 686 return FALSE;
cd21f5da 687 }
99706f30 688 cache_ptr->howto = cr16_elf_howto_table + r_type;
f3185997 689 return TRUE;
99706f30
SR		 690}
691
692/* Look through the relocs for a section during the first phase.
693 Since we don't do .gots or .plts, we just need to consider the
694 virtual table relocs for gc. */
695
696static bfd_boolean
697cr16_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
07d6d2b8 698 const Elf_Internal_Rela *relocs)
99706f30
SR		 699{
700 Elf_Internal_Shdr *symtab_hdr;
701 Elf_Internal_Sym * isymbuf = NULL;
702 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
703 const Elf_Internal_Rela *rel;
704 const Elf_Internal_Rela *rel_end;
705 bfd * dynobj;
706 bfd_vma * local_got_offsets;
707 asection * sgot;
708 asection * srelgot;
709
710 sgot = NULL;
711 srelgot = NULL;
712 bfd_boolean result = FALSE;
713
0e1862bb 714 if (bfd_link_relocatable (info))
99706f30
SR		 715 return TRUE;
716
717 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
718 sym_hashes = elf_sym_hashes (abfd);
719 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
720 if (!elf_bad_symtab (abfd))
721 sym_hashes_end -= symtab_hdr->sh_info;
722
723 dynobj = elf_hash_table (info)->dynobj;
724 local_got_offsets = elf_local_got_offsets (abfd);
725 rel_end = relocs + sec->reloc_count;
726 for (rel = relocs; rel < rel_end; rel++)
727 {
728 struct elf_link_hash_entry *h;
729 unsigned long r_symndx;
730
731 r_symndx = ELF32_R_SYM (rel->r_info);
732 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8 733 h = NULL;
99706f30 734 else
07d6d2b8
AM		 735 {
736 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
737 while (h->root.type == bfd_link_hash_indirect
738 || h->root.type == bfd_link_hash_warning)
739 h = (struct elf_link_hash_entry *) h->root.u.i.link;
740 }
99706f30
SR		 741
742 /* Some relocs require a global offset table. */
743 if (dynobj == NULL)
07d6d2b8
AM		 744 {
745 switch (ELF32_R_TYPE (rel->r_info))
746 {
747 case R_CR16_GOT_REGREL20:
748 case R_CR16_GOTC_REGREL20:
749 elf_hash_table (info)->dynobj = dynobj = abfd;
750 if (! _bfd_cr16_elf_create_got_section (dynobj, info))
751 goto fail;
752 break;
753
754 default:
755 break;
756 }
757 }
99706f30
SR		 758
759 switch (ELF32_R_TYPE (rel->r_info))
07d6d2b8
AM		 760 {
761 case R_CR16_GOT_REGREL20:
762 case R_CR16_GOTC_REGREL20:
763 /* This symbol requires a global offset table entry. */
99706f30 764
ce558b89
AM		 765 sgot = elf_hash_table (info)->sgot;
766 srelgot = elf_hash_table (info)->srelgot;
767 BFD_ASSERT (sgot != NULL && srelgot != NULL);
99706f30 768
07d6d2b8
AM		 769 if (h != NULL)
770 {
771 if (h->got.offset != (bfd_vma) -1)
772 /* We have already allocated space in the .got. */
773 break;
774
775 h->got.offset = sgot->size;
776
777 /* Make sure this symbol is output as a dynamic symbol. */
778 if (h->dynindx == -1)
779 {
780 if (! bfd_elf_link_record_dynamic_symbol (info, h))
781 goto fail;
782 }
783
784 srelgot->size += sizeof (Elf32_External_Rela);
785 }
786 else
787 {
788 /* This is a global offset table entry for a local
789 symbol. */
790 if (local_got_offsets == NULL)
791 {
792 size_t size;
793 unsigned int i;
794
795 size = symtab_hdr->sh_info * sizeof (bfd_vma);
796 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
797
798 if (local_got_offsets == NULL)
799 goto fail;
800
801 elf_local_got_offsets (abfd) = local_got_offsets;
802
803 for (i = 0; i < symtab_hdr->sh_info; i++)
804 local_got_offsets[i] = (bfd_vma) -1;
805 }
806
807 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
808 /* We have already allocated space in the .got. */
809 break;
810
811 local_got_offsets[r_symndx] = sgot->size;
812
813 if (bfd_link_executable (info))
814 /* If we are generating a shared object, we need to
815 output a R_CR16_RELATIVE reloc so that the dynamic
816 linker can adjust this GOT entry. */
817 srelgot->size += sizeof (Elf32_External_Rela);
818 }
819
820 sgot->size += 4;
821 break;
822
823 }
99706f30
SR		 824 }
825
826 result = TRUE;
827 fail:
828 if (isymbuf != NULL)
829 free (isymbuf);
830
831 return result;
3d3d428f
NC		 832}
833
834/* Perform a relocation as part of a final link. */
835
836static bfd_reloc_status_type
837cr16_elf_final_link_relocate (reloc_howto_type *howto,
07d6d2b8
AM		 838 bfd *input_bfd,
839 bfd *output_bfd ATTRIBUTE_UNUSED,
840 asection *input_section,
841 bfd_byte *contents,
842 bfd_vma offset,
843 bfd_vma Rvalue,
844 bfd_vma addend,
845 struct elf_link_hash_entry * h,
846 unsigned long symndx ATTRIBUTE_UNUSED,
847 struct bfd_link_info *info ATTRIBUTE_UNUSED,
848 asection *sec ATTRIBUTE_UNUSED,
849 int is_local ATTRIBUTE_UNUSED)
3d3d428f
NC		 850{
851 unsigned short r_type = howto->type;
852 bfd_byte *hit_data = contents + offset;
853 bfd_vma reloc_bits, check, Rvalue1;
99706f30 854
3d3d428f
NC		 855 switch (r_type)
856 {
857 case R_CR16_IMM4:
7fac7ff4
NC		 858 case R_CR16_IMM20:
859 case R_CR16_ABS20:
860 break;
861
3d3d428f
NC		 862 case R_CR16_IMM8:
863 case R_CR16_IMM16:
3d3d428f
NC		 864 case R_CR16_IMM32:
865 case R_CR16_IMM32a:
866 case R_CR16_REGREL4:
867 case R_CR16_REGREL4a:
868 case R_CR16_REGREL14:
869 case R_CR16_REGREL14a:
870 case R_CR16_REGREL16:
871 case R_CR16_REGREL20:
99706f30
SR		 872 case R_CR16_REGREL20a:
873 case R_CR16_GOT_REGREL20:
874 case R_CR16_GOTC_REGREL20:
3d3d428f
NC		 875 case R_CR16_ABS24:
876 case R_CR16_DISP16:
877 case R_CR16_DISP24:
878 /* 'hit_data' is relative to the start of the instruction, not the
07d6d2b8 879 relocation offset. Advance it to account for the exact offset. */
3d3d428f
NC		 880 hit_data += 2;
881 break;
882
883 case R_CR16_NONE:
884 return bfd_reloc_ok;
885 break;
886
887 case R_CR16_DISP4:
7fac7ff4 888 if (is_local)
07d6d2b8 889 Rvalue += -1;
7fac7ff4
NC		 890 break;
891
3d3d428f
NC		 892 case R_CR16_DISP8:
893 case R_CR16_DISP24a:
7fac7ff4 894 if (is_local)
07d6d2b8 895 Rvalue -= -1;
7fac7ff4
NC		 896 break;
897
898 case R_CR16_SWITCH8:
899 case R_CR16_SWITCH16:
900 case R_CR16_SWITCH32:
3d3d428f 901 /* We only care about the addend, where the difference between
07d6d2b8 902 expressions is kept. */
7fac7ff4 903 Rvalue = 0;
68ffbac6 904
3d3d428f
NC		 905 default:
906 break;
907 }
908
909 if (howto->pc_relative)
910 {
911 /* Subtract the address of the section containing the location. */
912 Rvalue -= (input_section->output_section->vma
07d6d2b8 913 + input_section->output_offset);
3d3d428f
NC		 914 /* Subtract the position of the location within the section. */
915 Rvalue -= offset;
916 }
917
918 /* Add in supplied addend. */
919 Rvalue += addend;
920
921 /* Complain if the bitfield overflows, whether it is considered
922 as signed or unsigned. */
923 check = Rvalue >> howto->rightshift;
924
925 /* Assumes two's complement. This expression avoids
926 overflow if howto->bitsize is the number of bits in
927 bfd_vma. */
928 reloc_bits = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1;
929
99706f30
SR		 930 /* For GOT and GOTC relocs no boundary checks applied. */
931 if (!((r_type == R_CR16_GOT_REGREL20)
932 || (r_type == R_CR16_GOTC_REGREL20)))
3d3d428f 933 {
99706f30 934 if (((bfd_vma) check & ~reloc_bits) != 0
07d6d2b8
AM		 935 && (((bfd_vma) check & ~reloc_bits)
936 != (-(bfd_vma) 1 & ~reloc_bits)))
937 {
938 /* The above right shift is incorrect for a signed
939 value. See if turning on the upper bits fixes the
940 overflow. */
941 if (howto->rightshift && (bfd_signed_vma) Rvalue < 0)
942 {
943 check |= ((bfd_vma) - 1
944 & ~((bfd_vma) - 1
945 >> howto->rightshift));
946
947 if (((bfd_vma) check & ~reloc_bits)
948 != (-(bfd_vma) 1 & ~reloc_bits))
949 return bfd_reloc_overflow;
950 }
951 else
952 return bfd_reloc_overflow;
953 }
3d3d428f 954
99706f30
SR		 955 /* Drop unwanted bits from the value we are relocating to. */
956 Rvalue >>= (bfd_vma) howto->rightshift;
3d3d428f 957
99706f30
SR		 958 /* Apply dst_mask to select only relocatable part of the insn. */
959 Rvalue &= howto->dst_mask;
960 }
3d3d428f
NC		 961
962 switch (howto->size)
963 {
964 case 0:
07d6d2b8
AM		 965 if (r_type == R_CR16_DISP8)
966 {
967 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
968 Rvalue = ((Rvalue1 & 0xf000) | ((Rvalue << 4) & 0xf00)
969 | (Rvalue1 & 0x00f0) | (Rvalue & 0xf));
970 bfd_put_16 (input_bfd, Rvalue, hit_data);
971 }
972 else if (r_type == R_CR16_IMM4)
973 {
974 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
975 Rvalue = (((Rvalue1 & 0xff) << 8) | ((Rvalue << 4) & 0xf0)
976 | ((Rvalue1 & 0x0f00) >> 8));
977 bfd_put_16 (input_bfd, Rvalue, hit_data);
978 }
979 else if (r_type == R_CR16_DISP4)
980 {
981 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
982 Rvalue = (Rvalue1 | ((Rvalue & 0xf) << 4));
983 bfd_put_16 (input_bfd, Rvalue, hit_data);
984 }
985 else
986 {
987 bfd_put_8 (input_bfd, (unsigned char) Rvalue, hit_data);
988 }
989 break;
3d3d428f
NC		 990
991 case 1:
07d6d2b8
AM		 992 if (r_type == R_CR16_DISP16)
993 {
994 Rvalue |= (bfd_get_16 (input_bfd, hit_data));
995 Rvalue = ((Rvalue & 0xfffe) | ((Rvalue >> 16) & 0x1));
996 }
997 if (r_type == R_CR16_IMM16)
998 {
999 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
1000
1001 /* Add or subtract the offset value. */
1002 if (Rvalue1 & 0x8000)
1003 Rvalue -= (~Rvalue1 + 1) & 0xffff;
1004 else
1005 Rvalue += Rvalue1;
1006
1007 /* Check for range. */
1008 if ((long) Rvalue > 0xffff || (long) Rvalue < 0x0)
1009 return bfd_reloc_overflow;
1010 }
1011
1012 bfd_put_16 (input_bfd, Rvalue, hit_data);
1013 break;
3d3d428f
NC		 1014
1015 case 2:
07d6d2b8
AM		 1016 if ((r_type == R_CR16_ABS20) || (r_type == R_CR16_IMM20))
1017 {
1018 Rvalue1 = (bfd_get_16 (input_bfd, hit_data + 2)
1019 | (((bfd_get_16 (input_bfd, hit_data) & 0xf) <<16)));
1020
1021 /* Add or subtract the offset value. */
1022 if (Rvalue1 & 0x80000)
1023 Rvalue -= (~Rvalue1 + 1) & 0xfffff;
1024 else
1025 Rvalue += Rvalue1;
1026
1027 /* Check for range. */
1028 if ((long) Rvalue > 0xfffff || (long) Rvalue < 0x0)
1029 return bfd_reloc_overflow;
1030
1031 bfd_put_16 (input_bfd, ((bfd_get_16 (input_bfd, hit_data) & 0xfff0)
1032 | ((Rvalue >> 16) & 0xf)), hit_data);
1033 bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
1034 }
1035 else if (r_type == R_CR16_GOT_REGREL20)
1036 {
1037 asection *sgot = elf_hash_table (info)->sgot;
1038
1039 if (h != NULL)
1040 {
1041 bfd_vma off;
1042
1043 off = h->got.offset;
1044 BFD_ASSERT (off != (bfd_vma) -1);
1045
1046 if (! elf_hash_table (info)->dynamic_sections_created
1047 || SYMBOL_REFERENCES_LOCAL (info, h))
1048 /* This is actually a static link, or it is a
1049 -Bsymbolic link and the symbol is defined
1050 locally, or the symbol was forced to be local
1051 because of a version file. We must initialize
1052 this entry in the global offset table.
1053 When doing a dynamic link, we create a .rela.got
1054 relocation entry to initialize the value. This
1055 is done in the finish_dynamic_symbol routine. */
1056 bfd_put_32 (output_bfd, Rvalue, sgot->contents + off);
1057
1058 Rvalue = sgot->output_offset + off;
1059 }
1060 else
1061 {
1062 bfd_vma off;
1063
1064 off = elf_local_got_offsets (input_bfd)[symndx];
1065 bfd_put_32 (output_bfd,Rvalue, sgot->contents + off);
1066
1067 Rvalue = sgot->output_offset + off;
1068 }
1069
1070 Rvalue += addend;
1071
1072 /* REVISIT: if ((long) Rvalue > 0xffffff ||
1073 (long) Rvalue < -0x800000). */
1074 if ((long) Rvalue > 0xffffff || (long) Rvalue < 0)
1075 return bfd_reloc_overflow;
1076
1077
1078 bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data))
1079 | (((Rvalue >> 16) & 0xf) << 8), hit_data);
1080 bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
1081
1082 }
1083 else if (r_type == R_CR16_GOTC_REGREL20)
1084 {
1085 asection *sgot = elf_hash_table (info)->sgot;
1086
1087 if (h != NULL)
1088 {
1089 bfd_vma off;
1090
1091 off = h->got.offset;
1092 BFD_ASSERT (off != (bfd_vma) -1);
1093
1094 Rvalue >>=1; /* For code symbols. */
1095
1096 if (! elf_hash_table (info)->dynamic_sections_created
1097 || SYMBOL_REFERENCES_LOCAL (info, h))
1098 /* This is actually a static link, or it is a
1099 -Bsymbolic link and the symbol is defined
1100 locally, or the symbol was forced to be local
1101 because of a version file. We must initialize
1102 this entry in the global offset table.
1103 When doing a dynamic link, we create a .rela.got
1104 relocation entry to initialize the value. This
1105 is done in the finish_dynamic_symbol routine. */
1106 bfd_put_32 (output_bfd, Rvalue, sgot->contents + off);
1107
1108 Rvalue = sgot->output_offset + off;
1109 }
1110 else
1111 {
1112 bfd_vma off;
1113
1114 off = elf_local_got_offsets (input_bfd)[symndx];
1115 Rvalue >>= 1;
1116 bfd_put_32 (output_bfd,Rvalue, sgot->contents + off);
1117 Rvalue = sgot->output_offset + off;
1118 }
1119
1120 Rvalue += addend;
1121
1122 /* Check if any value in DISP. */
1123 Rvalue1 =((bfd_get_32 (input_bfd, hit_data) >>16)
1124 | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16));
1125
1126 /* Add or subtract the offset value. */
1127 if (Rvalue1 & 0x80000)
1128 Rvalue -= (~Rvalue1 + 1) & 0xfffff;
1129 else
1130 Rvalue += Rvalue1;
1131
1132 /* Check for range. */
1133 /* REVISIT: if ((long) Rvalue > 0xffffff
1134 || (long) Rvalue < -0x800000). */
1135 if ((long) Rvalue > 0xffffff || (long) Rvalue < 0)
1136 return bfd_reloc_overflow;
1137
1138 bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data))
1139 | (((Rvalue >> 16) & 0xf) << 8), hit_data);
1140 bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
1141 }
1142 else
1143 {
1144 if (r_type == R_CR16_ABS24)
1145 {
1146 Rvalue1 = ((bfd_get_32 (input_bfd, hit_data) >> 16)
1147 | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16)
1148 | (((bfd_get_32 (input_bfd, hit_data) & 0xf) <<20)));
1149
1150 /* Add or subtract the offset value. */
1151 if (Rvalue1 & 0x800000)
1152 Rvalue -= (~Rvalue1 + 1) & 0xffffff;
1153 else
1154 Rvalue += Rvalue1;
1155
1156 /* Check for Range. */
1157 if ((long) Rvalue > 0xffffff || (long) Rvalue < 0x0)
1158 return bfd_reloc_overflow;
1159
1160 Rvalue = ((((Rvalue >> 20) & 0xf) | (((Rvalue >> 16) & 0xf)<<8)
1161 | (bfd_get_32 (input_bfd, hit_data) & 0xf0f0))
1162 | ((Rvalue & 0xffff) << 16));
1163 }
1164 else if (r_type == R_CR16_DISP24)
1165 {
1166 Rvalue = ((((Rvalue >> 20)& 0xf) | (((Rvalue >>16) & 0xf)<<8)
1167 | (bfd_get_16 (input_bfd, hit_data)))
1168 | (((Rvalue & 0xfffe) | ((Rvalue >> 24) & 0x1)) << 16));
1169 }
1170 else if ((r_type == R_CR16_IMM32) || (r_type == R_CR16_IMM32a))
1171 {
1172 Rvalue1 =((((bfd_get_32 (input_bfd, hit_data)) >> 16) &0xffff)
1173 | (((bfd_get_32 (input_bfd, hit_data)) &0xffff)) << 16);
1174
1175 /* Add or subtract the offset value. */
1176 if (Rvalue1 & 0x80000000)
1177 Rvalue -= (~Rvalue1 + 1) & 0xffffffff;
1178 else
1179 Rvalue += Rvalue1;
1180
1181 /* Check for range. */
1182 if (Rvalue > 0xffffffff || (long) Rvalue < 0x0)
1183 return bfd_reloc_overflow;
1184
1185 Rvalue = (((Rvalue >> 16)& 0xffff) | (Rvalue & 0xffff) << 16);
1186 }
1187 else if (r_type == R_CR16_DISP24a)
1188 {
1189 Rvalue = (((Rvalue & 0xfffffe) | (Rvalue >> 23)));
1190 Rvalue = ((Rvalue >> 16) & 0xff) | ((Rvalue & 0xffff) << 16)
1191 | (bfd_get_32 (input_bfd, hit_data));
1192 }
1193 else if ((r_type == R_CR16_REGREL20)
1194 || (r_type == R_CR16_REGREL20a))
1195 {
1196 Rvalue1 = ((bfd_get_32 (input_bfd, hit_data) >> 16)
1197 | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16));
1198 /* Add or subtract the offset value. */
1199 if (Rvalue1 & 0x80000)
1200 Rvalue -= (~Rvalue1 + 1) & 0xfffff;
1201 else
1202 Rvalue += Rvalue1;
1203
1204 /* Check for range. */
1205 if ((long) Rvalue > 0xfffff || (long) Rvalue < 0x0)
1206 return bfd_reloc_overflow;
1207
1208 Rvalue = (((((Rvalue >> 20)& 0xf) | (((Rvalue >>16) & 0xf)<<8)
1209 | ((Rvalue & 0xffff) << 16)))
1210 | (bfd_get_32 (input_bfd, hit_data) & 0xf0ff));
1211
1212 }
1213 else if (r_type == R_CR16_NUM32)
1214 {
1215 Rvalue1 = (bfd_get_32 (input_bfd, hit_data));
1216
1217 /* Add or subtract the offset value */
1218 if (Rvalue1 & 0x80000000)
1219 Rvalue -= (~Rvalue1 + 1) & 0xffffffff;
1220 else
1221 Rvalue += Rvalue1;
1222
1223 /* Check for Ranga */
1224 if (Rvalue > 0xffffffff)
1225 return bfd_reloc_overflow;
1226 }
1227
1228 bfd_put_32 (input_bfd, Rvalue, hit_data);
1229 }
1230 break;
3d3d428f
NC		 1231
1232 default:
07d6d2b8 1233 return bfd_reloc_notsupported;
3d3d428f
NC		 1234 }
1235
1236 return bfd_reloc_ok;
1237}
1238
1239/* Delete some bytes from a section while relaxing. */
1240
1241static bfd_boolean
1242elf32_cr16_relax_delete_bytes (struct bfd_link_info *link_info, bfd *abfd,
07d6d2b8 1243 asection *sec, bfd_vma addr, int count)
3d3d428f
NC		 1244{
1245 Elf_Internal_Shdr *symtab_hdr;
1246 unsigned int sec_shndx;
1247 bfd_byte *contents;
1248 Elf_Internal_Rela *irel, *irelend;
3d3d428f
NC		 1249 bfd_vma toaddr;
1250 Elf_Internal_Sym *isym;
1251 Elf_Internal_Sym *isymend;
1252 struct elf_link_hash_entry **sym_hashes;
1253 struct elf_link_hash_entry **end_hashes;
1254 struct elf_link_hash_entry **start_hashes;
1255 unsigned int symcount;
1256
1257 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
1258
1259 contents = elf_section_data (sec)->this_hdr.contents;
1260
3d3d428f
NC		 1261 toaddr = sec->size;
1262
1263 irel = elf_section_data (sec)->relocs;
1264 irelend = irel + sec->reloc_count;
1265
1266 /* Actually delete the bytes. */
1267 memmove (contents + addr, contents + addr + count,
07d6d2b8 1268 (size_t) (toaddr - addr - count));
3d3d428f
NC		 1269 sec->size -= count;
1270
1271 /* Adjust all the relocs. */
1272 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
1273 /* Get the new reloc address. */
1274 if ((irel->r_offset > addr && irel->r_offset < toaddr))
07d6d2b8 1275 irel->r_offset -= count;
3d3d428f
NC		 1276
1277 /* Adjust the local symbols defined in this section. */
1278 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1279 isym = (Elf_Internal_Sym *) symtab_hdr->contents;
1280 for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
1281 {
1282 if (isym->st_shndx == sec_shndx
07d6d2b8
AM		 1283 && isym->st_value > addr
1284 && isym->st_value < toaddr)
1285 {
1286 /* Adjust the addend of SWITCH relocations in this section,
1287 which reference this local symbol. */
99706f30 1288#if 0
07d6d2b8
AM		 1289 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
1290 {
1291 unsigned long r_symndx;
1292 Elf_Internal_Sym *rsym;
1293 bfd_vma addsym, subsym;
1294
1295 /* Skip if not a SWITCH relocation. */
1296 if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH8
1297 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH16
1298 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH32)
1299 continue;
1300
1301 r_symndx = ELF32_R_SYM (irel->r_info);
1302 rsym = (Elf_Internal_Sym *) symtab_hdr->contents + r_symndx;
1303
1304 /* Skip if not the local adjusted symbol. */
1305 if (rsym != isym)
1306 continue;
1307
1308 addsym = isym->st_value;
1309 subsym = addsym - irel->r_addend;
1310
1311 /* Fix the addend only when -->> (addsym > addr >= subsym). */
1312 if (subsym <= addr)
1313 irel->r_addend -= count;
1314 else
1315 continue;
1316 }
99706f30 1317#endif
3d3d428f 1318
07d6d2b8
AM		 1319 isym->st_value -= count;
1320 }
3d3d428f
NC		 1321 }
1322
1323 /* Now adjust the global symbols defined in this section. */
1324 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
07d6d2b8 1325 - symtab_hdr->sh_info);
3d3d428f
NC		 1326 sym_hashes = start_hashes = elf_sym_hashes (abfd);
1327 end_hashes = sym_hashes + symcount;
1328
1329 for (; sym_hashes < end_hashes; sym_hashes++)
1330 {
1331 struct elf_link_hash_entry *sym_hash = *sym_hashes;
1332
1333 /* The '--wrap SYMBOL' option is causing a pain when the object file,
07d6d2b8
AM		 1334 containing the definition of __wrap_SYMBOL, includes a direct
1335 call to SYMBOL as well. Since both __wrap_SYMBOL and SYMBOL reference
1336 the same symbol (which is __wrap_SYMBOL), but still exist as two
1337 different symbols in 'sym_hashes', we don't want to adjust
1338 the global symbol __wrap_SYMBOL twice.
1339 This check is only relevant when symbols are being wrapped. */
3d3d428f 1340 if (link_info->wrap_hash != NULL)
07d6d2b8
AM		 1341 {
1342 struct elf_link_hash_entry **cur_sym_hashes;
1343
1344 /* Loop only over the symbols whom been already checked. */
1345 for (cur_sym_hashes = start_hashes; cur_sym_hashes < sym_hashes;
1346 cur_sym_hashes++)
1347 /* If the current symbol is identical to 'sym_hash', that means
1348 the symbol was already adjusted (or at least checked). */
1349 if (*cur_sym_hashes == sym_hash)
1350 break;
1351
1352 /* Don't adjust the symbol again. */
1353 if (cur_sym_hashes < sym_hashes)
1354 continue;
1355 }
3d3d428f
NC		 1356
1357 if ((sym_hash->root.type == bfd_link_hash_defined
07d6d2b8
AM		 1358 || sym_hash->root.type == bfd_link_hash_defweak)
1359 && sym_hash->root.u.def.section == sec
1360 && sym_hash->root.u.def.value > addr
1361 && sym_hash->root.u.def.value < toaddr)
1362 sym_hash->root.u.def.value -= count;
3d3d428f
NC		 1363 }
1364
1365 return TRUE;
1366}
1367
1368/* Relocate a CR16 ELF section. */
1369
1370static bfd_boolean
1371elf32_cr16_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
07d6d2b8
AM		 1372 bfd *input_bfd, asection *input_section,
1373 bfd_byte *contents, Elf_Internal_Rela *relocs,
1374 Elf_Internal_Sym *local_syms,
1375 asection **local_sections)
3d3d428f
NC		 1376{
1377 Elf_Internal_Shdr *symtab_hdr;
1378 struct elf_link_hash_entry **sym_hashes;
1379 Elf_Internal_Rela *rel, *relend;
1380
3d3d428f
NC		 1381 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1382 sym_hashes = elf_sym_hashes (input_bfd);
1383
1384 rel = relocs;
1385 relend = relocs + input_section->reloc_count;
1386 for (; rel < relend; rel++)
1387 {
1388 int r_type;
1389 reloc_howto_type *howto;
1390 unsigned long r_symndx;
1391 Elf_Internal_Sym *sym;
1392 asection *sec;
1393 struct elf_link_hash_entry *h;
1394 bfd_vma relocation;
1395 bfd_reloc_status_type r;
1396
1397 r_symndx = ELF32_R_SYM (rel->r_info);
1398 r_type = ELF32_R_TYPE (rel->r_info);
1399 howto = cr16_elf_howto_table + (r_type);
1400
1401 h = NULL;
1402 sym = NULL;
1403 sec = NULL;
1404 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8
AM		 1405 {
1406 sym = local_syms + r_symndx;
1407 sec = local_sections[r_symndx];
1408 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1409 }
3d3d428f 1410 else
07d6d2b8
AM		 1411 {
1412 bfd_boolean unresolved_reloc, warned, ignored;
3d3d428f 1413
07d6d2b8
AM		 1414 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1415 r_symndx, symtab_hdr, sym_hashes,
1416 h, sec, relocation,
1417 unresolved_reloc, warned, ignored);
1418 }
3d3d428f 1419
dbaa2011 1420 if (sec != NULL && discarded_section (sec))
e4067dbb 1421 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 1422 rel, 1, relend, howto, 0, contents);
1004c3e1 1423
0e1862bb 1424 if (bfd_link_relocatable (info))
07d6d2b8 1425 continue;
1004c3e1 1426
3d3d428f 1427 r = cr16_elf_final_link_relocate (howto, input_bfd, output_bfd,
07d6d2b8
AM		 1428 input_section,
1429 contents, rel->r_offset,
1430 relocation, rel->r_addend,
1431 (struct elf_link_hash_entry *) h,
1432 r_symndx,
1433 info, sec, h == NULL);
3d3d428f
NC		 1434
1435 if (r != bfd_reloc_ok)
07d6d2b8
AM		 1436 {
1437 const char *name;
1438 const char *msg = NULL;
1439
1440 if (h != NULL)
1441 name = h->root.root.string;
1442 else
1443 {
1444 name = (bfd_elf_string_from_elf_section
1445 (input_bfd, symtab_hdr->sh_link, sym->st_name));
1446 if (name == NULL || *name == '\0')
1447 name = bfd_section_name (input_bfd, sec);
1448 }
1449
1450 switch (r)
1451 {
1452 case bfd_reloc_overflow:
1a72702b
AM		 1453 (*info->callbacks->reloc_overflow)
1454 (info, (h ? &h->root : NULL), name, howto->name,
1455 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
07d6d2b8 1456 break;
3d3d428f 1457
07d6d2b8 1458 case bfd_reloc_undefined:
1a72702b
AM		 1459 (*info->callbacks->undefined_symbol)
1460 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
07d6d2b8 1461 break;
3d3d428f 1462
07d6d2b8
AM		 1463 case bfd_reloc_outofrange:
1464 msg = _("internal error: out of range error");
1465 goto common_error;
3d3d428f 1466
07d6d2b8
AM		 1467 case bfd_reloc_notsupported:
1468 msg = _("internal error: unsupported relocation error");
1469 goto common_error;
3d3d428f 1470
07d6d2b8
AM		 1471 case bfd_reloc_dangerous:
1472 msg = _("internal error: dangerous error");
1473 goto common_error;
3d3d428f 1474
07d6d2b8
AM		 1475 default:
1476 msg = _("internal error: unknown error");
1477 /* Fall through. */
3d3d428f 1478
07d6d2b8 1479 common_error:
1a72702b
AM		 1480 (*info->callbacks->warning) (info, msg, name, input_bfd,
1481 input_section, rel->r_offset);
07d6d2b8
AM		 1482 break;
1483 }
1484 }
3d3d428f
NC		 1485 }
1486
1487 return TRUE;
1488}
1489
1490/* This is a version of bfd_generic_get_relocated_section_contents
1491 which uses elf32_cr16_relocate_section. */
1492
1493static bfd_byte *
1494elf32_cr16_get_relocated_section_contents (bfd *output_bfd,
07d6d2b8
AM		 1495 struct bfd_link_info *link_info,
1496 struct bfd_link_order *link_order,
1497 bfd_byte *data,
1498 bfd_boolean relocatable,
1499 asymbol **symbols)
3d3d428f
NC		 1500{
1501 Elf_Internal_Shdr *symtab_hdr;
1502 asection *input_section = link_order->u.indirect.section;
1503 bfd *input_bfd = input_section->owner;
1504 asection **sections = NULL;
1505 Elf_Internal_Rela *internal_relocs = NULL;
1506 Elf_Internal_Sym *isymbuf = NULL;
1507
1508 /* We only need to handle the case of relaxing, or of having a
1509 particular set of section contents, specially. */
1510 if (relocatable
1511 || elf_section_data (input_section)->this_hdr.contents == NULL)
1512 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
07d6d2b8
AM		 1513 link_order, data,
1514 relocatable,
1515 symbols);
3d3d428f
NC		 1516
1517 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1518
1519 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
07d6d2b8 1520 (size_t) input_section->size);
3d3d428f
NC		 1521
1522 if ((input_section->flags & SEC_RELOC) != 0
1523 && input_section->reloc_count > 0)
1524 {
1525 Elf_Internal_Sym *isym;
1526 Elf_Internal_Sym *isymend;
1527 asection **secpp;
1528 bfd_size_type amt;
1529
1530 internal_relocs = _bfd_elf_link_read_relocs (input_bfd, input_section,
07d6d2b8 1531 NULL, NULL, FALSE);
3d3d428f 1532 if (internal_relocs == NULL)
07d6d2b8 1533 goto error_return;
3d3d428f
NC		 1534
1535 if (symtab_hdr->sh_info != 0)
07d6d2b8
AM		 1536 {
1537 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
1538 if (isymbuf == NULL)
1539 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
1540 symtab_hdr->sh_info, 0,
1541 NULL, NULL, NULL);
1542 if (isymbuf == NULL)
1543 goto error_return;
1544 }
3d3d428f
NC		 1545
1546 amt = symtab_hdr->sh_info;
1547 amt *= sizeof (asection *);
1548 sections = bfd_malloc (amt);
1549 if (sections == NULL && amt != 0)
07d6d2b8 1550 goto error_return;
3d3d428f
NC		 1551
1552 isymend = isymbuf + symtab_hdr->sh_info;
1553 for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
07d6d2b8
AM		 1554 {
1555 asection *isec;
3d3d428f 1556
07d6d2b8
AM		 1557 if (isym->st_shndx == SHN_UNDEF)
1558 isec = bfd_und_section_ptr;
1559 else if (isym->st_shndx == SHN_ABS)
1560 isec = bfd_abs_section_ptr;
1561 else if (isym->st_shndx == SHN_COMMON)
1562 isec = bfd_com_section_ptr;
1563 else
1564 isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
3d3d428f 1565
07d6d2b8
AM		 1566 *secpp = isec;
1567 }
3d3d428f
NC		 1568
1569 if (! elf32_cr16_relocate_section (output_bfd, link_info, input_bfd,
07d6d2b8
AM		 1570 input_section, data, internal_relocs,
1571 isymbuf, sections))
1572 goto error_return;
3d3d428f
NC		 1573
1574 if (sections != NULL)
07d6d2b8 1575 free (sections);
3d3d428f 1576 if (isymbuf != NULL
07d6d2b8
AM		 1577 && symtab_hdr->contents != (unsigned char *) isymbuf)
1578 free (isymbuf);
3d3d428f 1579 if (elf_section_data (input_section)->relocs != internal_relocs)
07d6d2b8 1580 free (internal_relocs);
3d3d428f
NC		 1581 }
1582
1583 return data;
1584
1585 error_return:
1586 if (sections != NULL)
1587 free (sections);
1588 if (isymbuf != NULL
1589 && symtab_hdr->contents != (unsigned char *) isymbuf)
1590 free (isymbuf);
1591 if (internal_relocs != NULL
1592 && elf_section_data (input_section)->relocs != internal_relocs)
1593 free (internal_relocs);
1594 return NULL;
1595}
1596
99706f30
SR		 1597/* Assorted hash table functions. */
1598
1599/* Initialize an entry in the link hash table. */
1600
1601/* Create an entry in an CR16 ELF linker hash table. */
1602
1603static struct bfd_hash_entry *
1604elf32_cr16_link_hash_newfunc (struct bfd_hash_entry *entry,
07d6d2b8
AM		 1605 struct bfd_hash_table *table,
1606 const char *string)
99706f30
SR		 1607{
1608 struct elf32_cr16_link_hash_entry *ret =
1609 (struct elf32_cr16_link_hash_entry *) entry;
1610
1611 /* Allocate the structure if it has not already been allocated by a
1612 subclass. */
1613 if (ret == (struct elf32_cr16_link_hash_entry *) NULL)
1614 ret = ((struct elf32_cr16_link_hash_entry *)
07d6d2b8
AM		 1615 bfd_hash_allocate (table,
1616 sizeof (struct elf32_cr16_link_hash_entry)));
99706f30
SR		 1617 if (ret == (struct elf32_cr16_link_hash_entry *) NULL)
1618 return (struct bfd_hash_entry *) ret;
1619
1620 /* Call the allocation method of the superclass. */
1621 ret = ((struct elf32_cr16_link_hash_entry *)
07d6d2b8
AM		 1622 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1623 table, string));
99706f30
SR		 1624 if (ret != (struct elf32_cr16_link_hash_entry *) NULL)
1625 {
1626 ret->direct_calls = 0;
1627 ret->stack_size = 0;
1628 ret->movm_args = 0;
1629 ret->movm_stack_size = 0;
1630 ret->flags = 0;
1631 ret->value = 0;
1632 }
1633
1634 return (struct bfd_hash_entry *) ret;
1635}
1636
1637/* Create an cr16 ELF linker hash table. */
1638
1639static struct bfd_link_hash_table *
1640elf32_cr16_link_hash_table_create (bfd *abfd)
1641{
4dfe6ac6
NC		 1642 struct elf_link_hash_table *ret;
1643 bfd_size_type amt = sizeof (struct elf_link_hash_table);
99706f30 1644
7bf52ea2 1645 ret = (struct elf_link_hash_table *) bfd_zmalloc (amt);
4dfe6ac6 1646 if (ret == (struct elf_link_hash_table *) NULL)
99706f30
SR		 1647 return NULL;
1648
4dfe6ac6 1649 if (!_bfd_elf_link_hash_table_init (ret, abfd,
07d6d2b8
AM		 1650 elf32_cr16_link_hash_newfunc,
1651 sizeof (struct elf32_cr16_link_hash_entry),
4dfe6ac6 1652 GENERIC_ELF_DATA))
99706f30
SR		 1653 {
1654 free (ret);
1655 return NULL;
1656 }
1657
4dfe6ac6 1658 return &ret->root;
99706f30
SR		 1659}
1660
99706f30
SR		 1661static unsigned long
1662elf_cr16_mach (flagword flags)
1663{
1664 switch (flags)
1665 {
1666 case EM_CR16:
1667 default:
1668 return bfd_mach_cr16;
1669 }
1670}
1671
1672/* The final processing done just before writing out a CR16 ELF object
1673 file. This gets the CR16 architecture right based on the machine
1674 number. */
1675
1676static void
1677_bfd_cr16_elf_final_write_processing (bfd *abfd,
07d6d2b8 1678 bfd_boolean linker ATTRIBUTE_UNUSED)
99706f30
SR		 1679{
1680 unsigned long val;
1681 switch (bfd_get_mach (abfd))
1682 {
1683 default:
1684 case bfd_mach_cr16:
07d6d2b8
AM		 1685 val = EM_CR16;
1686 break;
99706f30
SR		 1687 }
1688
1689
1690 elf_elfheader (abfd)->e_flags |= val;
1691}
1692
1693
1694static bfd_boolean
1695_bfd_cr16_elf_object_p (bfd *abfd)
1696{
1697 bfd_default_set_arch_mach (abfd, bfd_arch_cr16,
07d6d2b8 1698 elf_cr16_mach (elf_elfheader (abfd)->e_flags));
99706f30
SR		 1699 return TRUE;
1700}
1701
1702/* Merge backend specific data from an object file to the output
1703 object file when linking. */
1704
1705static bfd_boolean
50e03d47 1706_bfd_cr16_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
99706f30 1707{
50e03d47
AM		 1708 bfd *obfd = info->output_bfd;
1709
99706f30
SR		 1710 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
1711 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
1712 return TRUE;
1713
1714 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
1715 && bfd_get_mach (obfd) < bfd_get_mach (ibfd))
1716 {
1717 if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
07d6d2b8
AM		 1718 bfd_get_mach (ibfd)))
1719 return FALSE;
99706f30
SR		 1720 }
1721
1722 return TRUE;
1723}
1724
1725
3d3d428f
NC		 1726/* This function handles relaxing for the CR16.
1727
1728 There's quite a few relaxing opportunites available on the CR16:
1729
07d6d2b8
AM		 1730 * bcond:24 -> bcond:16 1 byte
1731 * bcond:16 -> bcond:8 1 byte
1732 * arithmetic imm32 -> arithmetic imm20 12 bits
1733 * arithmetic imm20/imm16 -> arithmetic imm4 12/16 bits
3d3d428f
NC		 1734
1735 Symbol- and reloc-reading infrastructure copied from elf-m10200.c. */
1736
1737static bfd_boolean
1738elf32_cr16_relax_section (bfd *abfd, asection *sec,
07d6d2b8 1739 struct bfd_link_info *link_info, bfd_boolean *again)
3d3d428f
NC		 1740{
1741 Elf_Internal_Shdr *symtab_hdr;
1742 Elf_Internal_Rela *internal_relocs;
1743 Elf_Internal_Rela *irel, *irelend;
1744 bfd_byte *contents = NULL;
1745 Elf_Internal_Sym *isymbuf = NULL;
1746
1747 /* Assume nothing changes. */
1748 *again = FALSE;
1749
1750 /* We don't have to do anything for a relocatable link, if
1751 this section does not have relocs, or if this is not a
1752 code section. */
0e1862bb 1753 if (bfd_link_relocatable (link_info)
3d3d428f
NC		 1754 || (sec->flags & SEC_RELOC) == 0
1755 || sec->reloc_count == 0
1756 || (sec->flags & SEC_CODE) == 0)
1757 return TRUE;
1758
1759 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1760
1761 /* Get a copy of the native relocations. */
1762 internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
07d6d2b8 1763 link_info->keep_memory);
3d3d428f
NC		 1764 if (internal_relocs == NULL)
1765 goto error_return;
1766
1767 /* Walk through them looking for relaxing opportunities. */
1768 irelend = internal_relocs + sec->reloc_count;
1769 for (irel = internal_relocs; irel < irelend; irel++)
1770 {
1771 bfd_vma symval;
1772
1773 /* If this isn't something that can be relaxed, then ignore
07d6d2b8 1774 this reloc. */
3d3d428f 1775 if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP16
07d6d2b8
AM		 1776 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP24
1777 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM32
1778 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM20
1779 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM16)
1780 continue;
3d3d428f
NC		 1781
1782 /* Get the section contents if we haven't done so already. */
1783 if (contents == NULL)
07d6d2b8
AM		 1784 {
1785 /* Get cached copy if it exists. */
1786 if (elf_section_data (sec)->this_hdr.contents != NULL)
1787 contents = elf_section_data (sec)->this_hdr.contents;
1788 /* Go get them off disk. */
1789 else if (!bfd_malloc_and_get_section (abfd, sec, &contents))
1790 goto error_return;
1791 }
3d3d428f
NC		 1792
1793 /* Read this BFD's local symbols if we haven't done so already. */
1794 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
07d6d2b8
AM		 1795 {
1796 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
1797 if (isymbuf == NULL)
1798 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
1799 symtab_hdr->sh_info, 0,
1800 NULL, NULL, NULL);
1801 if (isymbuf == NULL)
1802 goto error_return;
1803 }
3d3d428f
NC		 1804
1805 /* Get the value of the symbol referred to by the reloc. */
1806 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
07d6d2b8
AM		 1807 {
1808 /* A local symbol. */
1809 Elf_Internal_Sym *isym;
1810 asection *sym_sec;
1811
1812 isym = isymbuf + ELF32_R_SYM (irel->r_info);
1813 if (isym->st_shndx == SHN_UNDEF)
1814 sym_sec = bfd_und_section_ptr;
1815 else if (isym->st_shndx == SHN_ABS)
1816 sym_sec = bfd_abs_section_ptr;
1817 else if (isym->st_shndx == SHN_COMMON)
1818 sym_sec = bfd_com_section_ptr;
1819 else
1820 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
1821 symval = (isym->st_value
1822 + sym_sec->output_section->vma
1823 + sym_sec->output_offset);
1824 }
3d3d428f 1825 else
07d6d2b8
AM		 1826 {
1827 unsigned long indx;
1828 struct elf_link_hash_entry *h;
1829
1830 /* An external symbol. */
1831 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
1832 h = elf_sym_hashes (abfd)[indx];
1833 BFD_ASSERT (h != NULL);
1834
1835 if (h->root.type != bfd_link_hash_defined
1836 && h->root.type != bfd_link_hash_defweak)
1837 /* This appears to be a reference to an undefined
1838 symbol. Just ignore it--it will be caught by the
1839 regular reloc processing. */
1840 continue;
1841
1842 symval = (h->root.u.def.value
1843 + h->root.u.def.section->output_section->vma
1844 + h->root.u.def.section->output_offset);
1845 }
3d3d428f
NC		 1846
1847 /* For simplicity of coding, we are going to modify the section
07d6d2b8
AM		 1848 contents, the section relocs, and the BFD symbol table. We
1849 must tell the rest of the code not to free up this
1850 information. It would be possible to instead create a table
1851 of changes which have to be made, as is done in coff-mips.c;
1852 that would be more work, but would require less memory when
1853 the linker is run. */
3d3d428f
NC		 1854
1855 /* Try to turn a 24 branch/call into a 16bit relative
07d6d2b8 1856 branch/call. */
3d3d428f 1857 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP24)
07d6d2b8
AM		 1858 {
1859 bfd_vma value = symval;
1860
1861 /* Deal with pc-relative gunk. */
1862 value -= (sec->output_section->vma + sec->output_offset);
1863 value -= irel->r_offset;
1864 value += irel->r_addend;
1865
1866 /* See if the value will fit in 16 bits, note the high value is
1867 0xfffe + 2 as the target will be two bytes closer if we are
1868 able to relax. */
1869 if ((long) value < 0x10000 && (long) value > -0x10002)
1870 {
1871 unsigned int code;
1872
1873 /* Get the opcode. */
1874 code = (unsigned int) bfd_get_32 (abfd, contents + irel->r_offset);
1875
1876 /* Verify it's a 'bcond' and fix the opcode. */
1877 if ((code & 0xffff) == 0x0010)
1878 bfd_put_16 (abfd, 0x1800 | ((0xf & (code >> 20)) << 4), contents + irel->r_offset);
1879 else
1880 continue;
1881
1882 /* Note that we've changed the relocs, section contents, etc. */
1883 elf_section_data (sec)->relocs = internal_relocs;
1884 elf_section_data (sec)->this_hdr.contents = contents;
1885 symtab_hdr->contents = (unsigned char *) isymbuf;
1886
1887 /* Fix the relocation's type. */
1888 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
1889 R_CR16_DISP16);
1890
1891 /* Delete two bytes of data. */
1892 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
1893 irel->r_offset + 2, 2))
1894 goto error_return;
1895
1896 /* That will change things, so, we should relax again.
1897 Note that this is not required, and it may be slow. */
1898 *again = TRUE;
1899 }
1900 }
3d3d428f 1901
99706f30 1902 /* Try to turn a 16bit pc-relative branch into an
07d6d2b8 1903 8bit pc-relative branch. */
3d3d428f 1904 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP16)
07d6d2b8
AM		 1905 {
1906 bfd_vma value = symval;
1907
1908 /* Deal with pc-relative gunk. */
1909 value -= (sec->output_section->vma + sec->output_offset);
1910 value -= irel->r_offset;
1911 value += irel->r_addend;
1912
1913 /* See if the value will fit in 8 bits, note the high value is
1914 0xfc + 2 as the target will be two bytes closer if we are
1915 able to relax. */
1916 /*if ((long) value < 0x1fa && (long) value > -0x100) REVISIT:range */
1917 if ((long) value < 0xfa && (long) value > -0x100)
1918 {
1919 unsigned short code;
1920
1921 /* Get the opcode. */
1922 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
1923
1924 /* Verify it's a 'bcond' and fix the opcode. */
1925 if ((code & 0xff0f) == 0x1800)
1926 bfd_put_16 (abfd, (code & 0xf0f0), contents + irel->r_offset);
1927 else
1928 continue;
1929
1930 /* Note that we've changed the relocs, section contents, etc. */
1931 elf_section_data (sec)->relocs = internal_relocs;
1932 elf_section_data (sec)->this_hdr.contents = contents;
1933 symtab_hdr->contents = (unsigned char *) isymbuf;
1934
1935 /* Fix the relocation's type. */
1936 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
1937 R_CR16_DISP8);
1938
1939 /* Delete two bytes of data. */
1940 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
1941 irel->r_offset + 2, 2))
1942 goto error_return;
1943
1944 /* That will change things, so, we should relax again.
1945 Note that this is not required, and it may be slow. */
1946 *again = TRUE;
1947 }
1948 }
3d3d428f 1949
99706f30 1950 /* Try to turn a 32-bit IMM address into a 20/16-bit IMM address */
3d3d428f 1951 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM32)
07d6d2b8
AM		 1952 {
1953 bfd_vma value = symval;
1954 unsigned short is_add_mov = 0;
1955 bfd_vma value1 = 0;
1956
1957 /* Get the existing value from the mcode */
1958 value1 = ((bfd_get_32 (abfd, contents + irel->r_offset + 2) >> 16)
1959 |(((bfd_get_32 (abfd, contents + irel->r_offset + 2) & 0xffff) << 16)));
1960
1961 /* See if the value will fit in 20 bits. */
1962 if ((long) (value + value1) < 0xfffff && (long) (value + value1) > 0)
1963 {
1964 unsigned short code;
1965
1966 /* Get the opcode. */
1967 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
1968
1969 /* Verify it's a 'arithmetic ADDD or MOVD instruction'.
1970 For ADDD and MOVD only, convert to IMM32 -> IMM20. */
1971
1972 if (((code & 0xfff0) == 0x0070) || ((code & 0xfff0) == 0x0020))
1973 is_add_mov = 1;
1974
1975 if (is_add_mov)
1976 {
1977 /* Note that we've changed the relocs, section contents,
1978 etc. */
1979 elf_section_data (sec)->relocs = internal_relocs;
1980 elf_section_data (sec)->this_hdr.contents = contents;
1981 symtab_hdr->contents = (unsigned char *) isymbuf;
1982
1983 /* Fix the opcode. */
1984 if ((code & 0xfff0) == 0x0070) /* For movd. */
1985 bfd_put_8 (abfd, 0x05, contents + irel->r_offset + 1);
1986 else /* code == 0x0020 for addd. */
1987 bfd_put_8 (abfd, 0x04, contents + irel->r_offset + 1);
1988
1989 bfd_put_8 (abfd, (code & 0xf) << 4, contents + irel->r_offset);
1990
1991 /* If existing value is nagavive adjust approriately
1992 place the 16-20bits (ie 4 bit) in new opcode,
1993 as the 0xffffxxxx, the higher 2 byte values removed. */
1994 if (value1 & 0x80000000)
1995 bfd_put_8 (abfd, (0x0f | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset);
1996 else
1997 bfd_put_8 (abfd, (((value1 >> 16)&0xf) | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset);
1998
1999 /* Fix the relocation's type. */
2000 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2001 R_CR16_IMM20);
2002
2003 /* Delete two bytes of data. */
2004 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
2005 irel->r_offset + 2, 2))
2006 goto error_return;
2007
2008 /* That will change things, so, we should relax again.
2009 Note that this is not required, and it may be slow. */
2010 *again = TRUE;
2011 }
2012 }
2013
2014 /* See if the value will fit in 16 bits. */
2015 if ((!is_add_mov)
2016 && ((long)(value + value1) < 0x7fff && (long)(value + value1) > 0))
2017 {
2018 unsigned short code;
2019
2020 /* Get the opcode. */
2021 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
2022
2023 /* Note that we've changed the relocs, section contents, etc. */
2024 elf_section_data (sec)->relocs = internal_relocs;
2025 elf_section_data (sec)->this_hdr.contents = contents;
2026 symtab_hdr->contents = (unsigned char *) isymbuf;
2027
2028 /* Fix the opcode. */
2029 if ((code & 0xf0) == 0x70) /* For movd. */
2030 bfd_put_8 (abfd, 0x54, contents + irel->r_offset + 1);
2031 else if ((code & 0xf0) == 0x20) /* For addd. */
2032 bfd_put_8 (abfd, 0x60, contents + irel->r_offset + 1);
2033 else if ((code & 0xf0) == 0x90) /* For cmpd. */
2034 bfd_put_8 (abfd, 0x56, contents + irel->r_offset + 1);
2035 else
2036 continue;
2037
2038 bfd_put_8 (abfd, 0xb0 | (code & 0xf), contents + irel->r_offset);
2039
2040 /* If existing value is nagavive adjust approriately
2041 place the 12-16bits (ie 4 bit) in new opcode,
2042 as the 0xfffffxxx, the higher 2 byte values removed. */
2043 if (value1 & 0x80000000)
2044 bfd_put_8 (abfd, (0x0f | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset);
2045 else
2046 bfd_put_16 (abfd, value1, contents + irel->r_offset + 2);
2047
2048
2049 /* Fix the relocation's type. */
2050 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2051 R_CR16_IMM16);
2052
2053 /* Delete two bytes of data. */
2054 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
2055 irel->r_offset + 2, 2))
2056 goto error_return;
2057
2058 /* That will change things, so, we should relax again.
2059 Note that this is not required, and it may be slow. */
2060 *again = TRUE;
2061 }
2062 }
7fac7ff4 2063
99706f30
SR		 2064#if 0
2065 /* Try to turn a 16bit immediate address into a 4bit
07d6d2b8 2066 immediate address. */
68ffbac6 2067 if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20)
07d6d2b8
AM		 2068 || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM16))
2069 {
2070 bfd_vma value = symval;
2071 bfd_vma value1 = 0;
2072
2073 /* Get the existing value from the mcode */
2074 value1 = ((bfd_get_16 (abfd, contents + irel->r_offset + 2) & 0xffff));
2075
2076 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20)
2077 {
2078 value1 |= ((bfd_get_16 (abfd, contents + irel->r_offset + 1) & 0xf000) << 0x4);
2079 }
2080
2081 /* See if the value will fit in 4 bits. */
2082 if ((((long) (value + value1)) < 0xf)
2083 && (((long) (value + value1)) > 0))
2084 {
2085 unsigned short code;
2086
2087 /* Get the opcode. */
2088 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
2089
2090 /* Note that we've changed the relocs, section contents, etc. */
2091 elf_section_data (sec)->relocs = internal_relocs;
2092 elf_section_data (sec)->this_hdr.contents = contents;
2093 symtab_hdr->contents = (unsigned char *) isymbuf;
2094
2095 /* Fix the opcode. */
2096 if (((code & 0x0f00) == 0x0400) || ((code & 0x0f00) == 0x0500))
2097 {
2098 if ((code & 0x0f00) == 0x0400) /* For movd imm20. */
2099 bfd_put_8 (abfd, 0x60, contents + irel->r_offset);
2100 else /* For addd imm20. */
2101 bfd_put_8 (abfd, 0x54, contents + irel->r_offset);
2102 bfd_put_8 (abfd, (code & 0xf0) >> 4, contents + irel->r_offset + 1);
2103 }
2104 else
2105 {
2106 if ((code & 0xfff0) == 0x56b0) /* For cmpd imm16. */
2107 bfd_put_8 (abfd, 0x56, contents + irel->r_offset);
2108 else if ((code & 0xfff0) == 0x54b0) /* For movd imm16. */
2109 bfd_put_8 (abfd, 0x54, contents + irel->r_offset);
2110 else if ((code & 0xfff0) == 0x58b0) /* For movb imm16. */
2111 bfd_put_8 (abfd, 0x58, contents + irel->r_offset);
2112 else if ((code & 0xfff0) == 0x5Ab0) /* For movw imm16. */
2113 bfd_put_8 (abfd, 0x5A, contents + irel->r_offset);
2114 else if ((code & 0xfff0) == 0x60b0) /* For addd imm16. */
2115 bfd_put_8 (abfd, 0x60, contents + irel->r_offset);
2116 else if ((code & 0xfff0) == 0x30b0) /* For addb imm16. */
2117 bfd_put_8 (abfd, 0x30, contents + irel->r_offset);
2118 else if ((code & 0xfff0) == 0x2Cb0) /* For addub imm16. */
2119 bfd_put_8 (abfd, 0x2C, contents + irel->r_offset);
2120 else if ((code & 0xfff0) == 0x32b0) /* For adduw imm16. */
2121 bfd_put_8 (abfd, 0x32, contents + irel->r_offset);
2122 else if ((code & 0xfff0) == 0x38b0) /* For subb imm16. */
2123 bfd_put_8 (abfd, 0x38, contents + irel->r_offset);
2124 else if ((code & 0xfff0) == 0x3Cb0) /* For subcb imm16. */
2125 bfd_put_8 (abfd, 0x3C, contents + irel->r_offset);
2126 else if ((code & 0xfff0) == 0x3Fb0) /* For subcw imm16. */
2127 bfd_put_8 (abfd, 0x3F, contents + irel->r_offset);
2128 else if ((code & 0xfff0) == 0x3Ab0) /* For subw imm16. */
2129 bfd_put_8 (abfd, 0x3A, contents + irel->r_offset);
2130 else if ((code & 0xfff0) == 0x50b0) /* For cmpb imm16. */
2131 bfd_put_8 (abfd, 0x50, contents + irel->r_offset);
2132 else if ((code & 0xfff0) == 0x52b0) /* For cmpw imm16. */
2133 bfd_put_8 (abfd, 0x52, contents + irel->r_offset);
2134 else
2135 continue;
2136
2137 bfd_put_8 (abfd, (code & 0xf), contents + irel->r_offset + 1);
2138 }
2139
2140 /* Fix the relocation's type. */
2141 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2142 R_CR16_IMM4);
2143
2144 /* Delete two bytes of data. */
2145 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
2146 irel->r_offset + 2, 2))
2147 goto error_return;
2148
2149 /* That will change things, so, we should relax again.
2150 Note that this is not required, and it may be slow. */
2151 *again = TRUE;
2152 }
2153 }
99706f30 2154#endif
3d3d428f
NC		 2155 }
2156
2157 if (isymbuf != NULL
2158 && symtab_hdr->contents != (unsigned char *) isymbuf)
2159 {
2160 if (! link_info->keep_memory)
07d6d2b8 2161 free (isymbuf);
3d3d428f 2162 else
99706f30
SR		 2163 /* Cache the symbols for elf_link_input_bfd. */
2164 symtab_hdr->contents = (unsigned char *) isymbuf;
3d3d428f
NC		 2165 }
2166
2167 if (contents != NULL
2168 && elf_section_data (sec)->this_hdr.contents != contents)
2169 {
2170 if (! link_info->keep_memory)
07d6d2b8 2171 free (contents);
3d3d428f 2172 else
99706f30
SR		 2173 /* Cache the section contents for elf_link_input_bfd. */
2174 elf_section_data (sec)->this_hdr.contents = contents;
68ffbac6 2175
3d3d428f
NC		 2176 }
2177
2178 if (internal_relocs != NULL
2179 && elf_section_data (sec)->relocs != internal_relocs)
2180 free (internal_relocs);
2181
2182 return TRUE;
2183
2184 error_return:
2185 if (isymbuf != NULL
2186 && symtab_hdr->contents != (unsigned char *) isymbuf)
2187 free (isymbuf);
2188 if (contents != NULL
2189 && elf_section_data (sec)->this_hdr.contents != contents)
2190 free (contents);
2191 if (internal_relocs != NULL
2192 && elf_section_data (sec)->relocs != internal_relocs)
2193 free (internal_relocs);
2194
2195 return FALSE;
2196}
2197
2198static asection *
2199elf32_cr16_gc_mark_hook (asection *sec,
07d6d2b8
AM		 2200 struct bfd_link_info *info,
2201 Elf_Internal_Rela *rel,
2202 struct elf_link_hash_entry *h,
2203 Elf_Internal_Sym *sym)
3d3d428f 2204{
fb34365b 2205 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3d3d428f
NC		 2206}
2207
99706f30
SR		 2208/* Create dynamic sections when linking against a dynamic object. */
2209
2210static bfd_boolean
2211_bfd_cr16_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2212{
2213 flagword flags;
2214 asection * s;
2215 const struct elf_backend_data * bed = get_elf_backend_data (abfd);
ce558b89 2216 struct elf_link_hash_table *htab = elf_hash_table (info);
99706f30
SR		 2217 int ptralign = 0;
2218
2219 switch (bed->s->arch_size)
2220 {
2221 case 16:
2222 ptralign = 1;
2223 break;
2224
2225 case 32:
2226 ptralign = 2;
2227 break;
2228
2229 default:
2230 bfd_set_error (bfd_error_bad_value);
2231 return FALSE;
2232 }
2233
2234 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2235 .rel[a].bss sections. */
2236
2237 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
07d6d2b8 2238 | SEC_LINKER_CREATED);
99706f30 2239
3d4d4302
AM		 2240 s = bfd_make_section_anyway_with_flags (abfd,
2241 (bed->default_use_rela_p
2242 ? ".rela.plt" : ".rel.plt"),
2243 flags | SEC_READONLY);
ce558b89 2244 htab->srelplt = s;
99706f30
SR		 2245 if (s == NULL
2246 || ! bfd_set_section_alignment (abfd, s, ptralign))
2247 return FALSE;
2248
2249 if (! _bfd_cr16_elf_create_got_section (abfd, info))
2250 return FALSE;
2251
99706f30
SR		 2252 if (bed->want_dynbss)
2253 {
2254 /* The .dynbss section is a place to put symbols which are defined
07d6d2b8
AM		 2255 by dynamic objects, are referenced by regular objects, and are
2256 not functions. We must allocate space for them in the process
2257 image and use a R_*_COPY reloc to tell the dynamic linker to
2258 initialize them at run time. The linker script puts the .dynbss
2259 section into the .bss section of the final image. */
3d4d4302
AM		 2260 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2261 SEC_ALLOC | SEC_LINKER_CREATED);
99706f30 2262 if (s == NULL)
07d6d2b8 2263 return FALSE;
99706f30
SR		 2264
2265 /* The .rel[a].bss section holds copy relocs. This section is not
07d6d2b8
AM		 2266 normally needed. We need to create it here, though, so that the
2267 linker will map it to an output section. We can't just create it
2268 only if we need it, because we will not know whether we need it
2269 until we have seen all the input files, and the first time the
2270 main linker code calls BFD after examining all the input files
2271 (size_dynamic_sections) the input sections have already been
2272 mapped to the output sections. If the section turns out not to
2273 be needed, we can discard it later. We will never need this
2274 section when generating a shared object, since they do not use
2275 copy relocs. */
0e1862bb 2276 if (! bfd_link_executable (info))
07d6d2b8
AM		 2277 {
2278 s = bfd_make_section_anyway_with_flags (abfd,
3d4d4302
AM		 2279 (bed->default_use_rela_p
2280 ? ".rela.bss" : ".rel.bss"),
2281 flags | SEC_READONLY);
07d6d2b8
AM		 2282 if (s == NULL
2283 || ! bfd_set_section_alignment (abfd, s, ptralign))
2284 return FALSE;
2285 }
99706f30
SR		 2286 }
2287
2288 return TRUE;
2289}
2290\f
2291/* Adjust a symbol defined by a dynamic object and referenced by a
2292 regular object. The current definition is in some section of the
2293 dynamic object, but we're not including those sections. We have to
2294 change the definition to something the rest of the link can
2295 understand. */
2296
2297static bfd_boolean
2298_bfd_cr16_elf_adjust_dynamic_symbol (struct bfd_link_info * info,
07d6d2b8 2299 struct elf_link_hash_entry * h)
99706f30
SR		 2300{
2301 bfd * dynobj;
2302 asection * s;
2303
2304 dynobj = elf_hash_table (info)->dynobj;
2305
2306 /* Make sure we know what is going on here. */
2307 BFD_ASSERT (dynobj != NULL
07d6d2b8
AM		 2308 && (h->needs_plt
2309 || h->is_weakalias
2310 || (h->def_dynamic
2311 && h->ref_regular
2312 && !h->def_regular)));
99706f30
SR		 2313
2314 /* If this is a function, put it in the procedure linkage table. We
2315 will fill in the contents of the procedure linkage table later,
2316 when we know the address of the .got section. */
2317 if (h->type == STT_FUNC
2318 || h->needs_plt)
2319 {
0e1862bb 2320 if (! bfd_link_executable (info)
07d6d2b8
AM		 2321 && !h->def_dynamic
2322 && !h->ref_dynamic)
2323 {
2324 /* This case can occur if we saw a PLT reloc in an input
2325 file, but the symbol was never referred to by a dynamic
2326 object. In such a case, we don't actually need to build
2327 a procedure linkage table, and we can just do a REL32
2328 reloc instead. */
2329 BFD_ASSERT (h->needs_plt);
2330 return TRUE;
2331 }
99706f30
SR		 2332
2333 /* Make sure this symbol is output as a dynamic symbol. */
2334 if (h->dynindx == -1)
07d6d2b8
AM		 2335 {
2336 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2337 return FALSE;
2338 }
99706f30
SR		 2339
2340 /* We also need to make an entry in the .got.plt section, which
07d6d2b8 2341 will be placed in the .got section by the linker script. */
99706f30 2342
ce558b89 2343 s = elf_hash_table (info)->sgotplt;
99706f30
SR		 2344 BFD_ASSERT (s != NULL);
2345 s->size += 4;
2346
2347 /* We also need to make an entry in the .rela.plt section. */
2348
ce558b89 2349 s = elf_hash_table (info)->srelplt;
99706f30
SR		 2350 BFD_ASSERT (s != NULL);
2351 s->size += sizeof (Elf32_External_Rela);
2352
2353 return TRUE;
2354 }
2355
2356 /* If this is a weak symbol, and there is a real definition, the
2357 processor independent code will have arranged for us to see the
2358 real definition first, and we can just use the same value. */
60d67dc8 2359 if (h->is_weakalias)
99706f30 2360 {
60d67dc8
AM		 2361 struct elf_link_hash_entry *def = weakdef (h);
2362 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2363 h->root.u.def.section = def->root.u.def.section;
2364 h->root.u.def.value = def->root.u.def.value;
99706f30
SR		 2365 return TRUE;
2366 }
2367
2368 /* This is a reference to a symbol defined by a dynamic object which
2369 is not a function. */
2370
2371 /* If we are creating a shared library, we must presume that the
2372 only references to the symbol are via the global offset table.
2373 For such cases we need not do anything here; the relocations will
2374 be handled correctly by relocate_section. */
0e1862bb 2375 if (bfd_link_executable (info))
99706f30
SR		 2376 return TRUE;
2377
2378 /* If there are no references to this symbol that do not use the
2379 GOT, we don't need to generate a copy reloc. */
2380 if (!h->non_got_ref)
2381 return TRUE;
2382
99706f30
SR		 2383 /* We must allocate the symbol in our .dynbss section, which will
2384 become part of the .bss section of the executable. There will be
2385 an entry for this symbol in the .dynsym section. The dynamic
2386 object will contain position independent code, so all references
2387 from the dynamic object to this symbol will go through the global
2388 offset table. The dynamic linker will use the .dynsym entry to
2389 determine the address it must put in the global offset table, so
2390 both the dynamic object and the regular object will refer to the
2391 same memory location for the variable. */
2392
3d4d4302 2393 s = bfd_get_linker_section (dynobj, ".dynbss");
99706f30
SR		 2394 BFD_ASSERT (s != NULL);
2395
2396 /* We must generate a R_CR16_COPY reloc to tell the dynamic linker to
2397 copy the initial value out of the dynamic object and into the
2398 runtime process image. We need to remember the offset into the
2399 .rela.bss section we are going to use. */
1d7e9d18 2400 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
99706f30
SR		 2401 {
2402 asection * srel;
2403
3d4d4302 2404 srel = bfd_get_linker_section (dynobj, ".rela.bss");
99706f30
SR		 2405 BFD_ASSERT (srel != NULL);
2406 srel->size += sizeof (Elf32_External_Rela);
2407 h->needs_copy = 1;
2408 }
2409
6cabe1ea 2410 return _bfd_elf_adjust_dynamic_copy (info, h, s);
99706f30
SR		 2411}
2412
2413/* Set the sizes of the dynamic sections. */
2414
2415static bfd_boolean
2416_bfd_cr16_elf_size_dynamic_sections (bfd * output_bfd,
07d6d2b8 2417 struct bfd_link_info * info)
99706f30
SR		 2418{
2419 bfd * dynobj;
2420 asection * s;
2421 bfd_boolean plt;
2422 bfd_boolean relocs;
2423 bfd_boolean reltext;
2424
2425 dynobj = elf_hash_table (info)->dynobj;
2426 BFD_ASSERT (dynobj != NULL);
2427
2428 if (elf_hash_table (info)->dynamic_sections_created)
2429 {
2430 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2431 if (bfd_link_executable (info) && !info->nointerp)
07d6d2b8 2432 {
99706f30 2433#if 0
07d6d2b8
AM		 2434 s = bfd_get_linker_section (dynobj, ".interp");
2435 BFD_ASSERT (s != NULL);
2436 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2437 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
99706f30 2438#endif
07d6d2b8 2439 }
99706f30
SR		 2440 }
2441 else
2442 {
2443 /* We may have created entries in the .rela.got section.
07d6d2b8
AM		 2444 However, if we are not creating the dynamic sections, we will
2445 not actually use these entries. Reset the size of .rela.got,
2446 which will cause it to get stripped from the output file
2447 below. */
ce558b89 2448 s = elf_hash_table (info)->srelgot;
99706f30 2449 if (s != NULL)
07d6d2b8 2450 s->size = 0;
99706f30
SR		 2451 }
2452
2453 /* The check_relocs and adjust_dynamic_symbol entry points have
2454 determined the sizes of the various dynamic sections. Allocate
2455 memory for them. */
2456 plt = FALSE;
2457 relocs = FALSE;
2458 reltext = FALSE;
2459 for (s = dynobj->sections; s != NULL; s = s->next)
2460 {
2461 const char * name;
2462
2463 if ((s->flags & SEC_LINKER_CREATED) == 0)
07d6d2b8 2464 continue;
99706f30
SR		 2465
2466 /* It's OK to base decisions on the section name, because none
07d6d2b8 2467 of the dynobj section names depend upon the input files. */
99706f30
SR		 2468 name = bfd_get_section_name (dynobj, s);
2469
2470 if (strcmp (name, ".plt") == 0)
07d6d2b8
AM		 2471 {
2472 /* Remember whether there is a PLT. */
2473 plt = s->size != 0;
2474 }
99706f30 2475 else if (CONST_STRNEQ (name, ".rela"))
07d6d2b8
AM		 2476 {
2477 if (s->size != 0)
2478 {
2479 asection * target;
2480
2481 /* Remember whether there are any reloc sections other
2482 than .rela.plt. */
2483 if (strcmp (name, ".rela.plt") != 0)
2484 {
2485 const char * outname;
2486
2487 relocs = TRUE;
2488
2489 /* If this relocation section applies to a read only
2490 section, then we probably need a DT_TEXTREL
2491 entry. The entries in the .rela.plt section
2492 really apply to the .got section, which we
2493 created ourselves and so know is not readonly. */
2494 outname = bfd_get_section_name (output_bfd,
2495 s->output_section);
2496 target = bfd_get_section_by_name (output_bfd, outname + 5);
2497 if (target != NULL
2498 && (target->flags & SEC_READONLY) != 0
2499 && (target->flags & SEC_ALLOC) != 0)
2500 reltext = TRUE;
2501 }
2502
2503 /* We use the reloc_count field as a counter if we need
2504 to copy relocs into the output file. */
2505 s->reloc_count = 0;
2506 }
2507 }
99706f30 2508 else if (! CONST_STRNEQ (name, ".got")
07d6d2b8
AM		 2509 && strcmp (name, ".dynbss") != 0)
2510 /* It's not one of our sections, so don't allocate space. */
2511 continue;
99706f30
SR		 2512
2513 if (s->size == 0)
07d6d2b8
AM		 2514 {
2515 /* If we don't need this section, strip it from the
2516 output file. This is mostly to handle .rela.bss and
2517 .rela.plt. We must create both sections in
2518 create_dynamic_sections, because they must be created
2519 before the linker maps input sections to output
2520 sections. The linker does that before
2521 adjust_dynamic_symbol is called, and it is that
2522 function which decides whether anything needs to go
2523 into these sections. */
2524 s->flags |= SEC_EXCLUDE;
2525 continue;
2526 }
2527
2528 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2529 continue;
99706f30
SR		 2530
2531 /* Allocate memory for the section contents. We use bfd_zalloc
07d6d2b8
AM		 2532 here in case unused entries are not reclaimed before the
2533 section's contents are written out. This should not happen,
2534 but this way if it does, we get a R_CR16_NONE reloc
2535 instead of garbage. */
99706f30
SR		 2536 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2537 if (s->contents == NULL)
07d6d2b8 2538 return FALSE;
99706f30
SR		 2539 }
2540
2541 if (elf_hash_table (info)->dynamic_sections_created)
2542 {
2543 /* Add some entries to the .dynamic section. We fill in the
07d6d2b8
AM		 2544 values later, in _bfd_cr16_elf_finish_dynamic_sections,
2545 but we must add the entries now so that we get the correct
2546 size for the .dynamic section. The DT_DEBUG entry is filled
2547 in by the dynamic linker and used by the debugger. */
0e1862bb 2548 if (! bfd_link_executable (info))
07d6d2b8
AM		 2549 {
2550 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
2551 return FALSE;
2552 }
99706f30
SR		 2553
2554 if (plt)
07d6d2b8
AM		 2555 {
2556 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
2557 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
2558 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
2559 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
2560 return FALSE;
2561 }
99706f30
SR		 2562
2563 if (relocs)
07d6d2b8
AM		 2564 {
2565 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
2566 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
2567 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
2568 sizeof (Elf32_External_Rela)))
2569 return FALSE;
2570 }
99706f30
SR		 2571
2572 if (reltext)
07d6d2b8
AM		 2573 {
2574 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
2575 return FALSE;
2576 }
99706f30
SR		 2577 }
2578
2579 return TRUE;
2580}
2581
2582/* Finish up dynamic symbol handling. We set the contents of various
2583 dynamic sections here. */
2584
2585static bfd_boolean
2586_bfd_cr16_elf_finish_dynamic_symbol (bfd * output_bfd,
07d6d2b8
AM		 2587 struct bfd_link_info * info,
2588 struct elf_link_hash_entry * h,
2589 Elf_Internal_Sym * sym)
99706f30
SR		 2590{
2591 bfd * dynobj;
2592
2593 dynobj = elf_hash_table (info)->dynobj;
2594
2595 if (h->got.offset != (bfd_vma) -1)
2596 {
07d6d2b8
AM		 2597 asection * sgot;
2598 asection * srel;
99706f30
SR		 2599 Elf_Internal_Rela rel;
2600
2601 /* This symbol has an entry in the global offset table. Set it up. */
2602
ce558b89
AM		 2603 sgot = elf_hash_table (info)->sgot;
2604 srel = elf_hash_table (info)->srelgot;
99706f30
SR		 2605 BFD_ASSERT (sgot != NULL && srel != NULL);
2606
2607 rel.r_offset = (sgot->output_section->vma
07d6d2b8
AM		 2608 + sgot->output_offset
2609 + (h->got.offset & ~1));
99706f30
SR		 2610
2611 /* If this is a -Bsymbolic link, and the symbol is defined
07d6d2b8
AM		 2612 locally, we just want to emit a RELATIVE reloc. Likewise if
2613 the symbol was forced to be local because of a version file.
2614 The entry in the global offset table will already have been
2615 initialized in the relocate_section function. */
0e1862bb 2616 if (bfd_link_executable (info)
07d6d2b8
AM		 2617 && (info->symbolic || h->dynindx == -1)
2618 && h->def_regular)
2619 {
2620 rel.r_info = ELF32_R_INFO (0, R_CR16_GOT_REGREL20);
2621 rel.r_addend = (h->root.u.def.value
2622 + h->root.u.def.section->output_section->vma
2623 + h->root.u.def.section->output_offset);
2624 }
99706f30 2625 else
07d6d2b8
AM		 2626 {
2627 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
2628 rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20);
2629 rel.r_addend = 0;
2630 }
99706f30
SR		 2631
2632 bfd_elf32_swap_reloca_out (output_bfd, &rel,
07d6d2b8
AM		 2633 (bfd_byte *) ((Elf32_External_Rela *) srel->contents
2634 + srel->reloc_count));
99706f30
SR		 2635 ++ srel->reloc_count;
2636 }
2637
2638 if (h->needs_copy)
2639 {
07d6d2b8 2640 asection * s;
99706f30
SR		 2641 Elf_Internal_Rela rel;
2642
2643 /* This symbol needs a copy reloc. Set it up. */
2644 BFD_ASSERT (h->dynindx != -1
07d6d2b8
AM		 2645 && (h->root.type == bfd_link_hash_defined
2646 || h->root.type == bfd_link_hash_defweak));
99706f30 2647
3d4d4302 2648 s = bfd_get_linker_section (dynobj, ".rela.bss");
99706f30
SR		 2649 BFD_ASSERT (s != NULL);
2650
2651 rel.r_offset = (h->root.u.def.value
07d6d2b8
AM		 2652 + h->root.u.def.section->output_section->vma
2653 + h->root.u.def.section->output_offset);
99706f30
SR		 2654 rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20);
2655 rel.r_addend = 0;
2656 bfd_elf32_swap_reloca_out (output_bfd, &rel,
07d6d2b8
AM		 2657 (bfd_byte *) ((Elf32_External_Rela *) s->contents
2658 + s->reloc_count));
99706f30
SR		 2659 ++ s->reloc_count;
2660 }
2661
2662 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9637f6ef 2663 if (h == elf_hash_table (info)->hdynamic
99706f30
SR		 2664 || h == elf_hash_table (info)->hgot)
2665 sym->st_shndx = SHN_ABS;
2666
2667 return TRUE;
2668}
2669
2670/* Finish up the dynamic sections. */
2671
2672static bfd_boolean
2673_bfd_cr16_elf_finish_dynamic_sections (bfd * output_bfd,
07d6d2b8 2674 struct bfd_link_info * info)
99706f30
SR		 2675{
2676 bfd * dynobj;
2677 asection * sgot;
2678 asection * sdyn;
2679
2680 dynobj = elf_hash_table (info)->dynobj;
2681
ce558b89 2682 sgot = elf_hash_table (info)->sgotplt;
99706f30 2683 BFD_ASSERT (sgot != NULL);
3d4d4302 2684 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
99706f30
SR		 2685
2686 if (elf_hash_table (info)->dynamic_sections_created)
2687 {
2688 Elf32_External_Dyn * dyncon;
2689 Elf32_External_Dyn * dynconend;
2690
2691 BFD_ASSERT (sdyn != NULL);
2692
2693 dyncon = (Elf32_External_Dyn *) sdyn->contents;
2694 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
2695
2696 for (; dyncon < dynconend; dyncon++)
07d6d2b8
AM		 2697 {
2698 Elf_Internal_Dyn dyn;
2699 asection * s;
2700
2701 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
2702
2703 switch (dyn.d_tag)
2704 {
2705 default:
2706 break;
2707
2708 case DT_PLTGOT:
2709 s = elf_hash_table (info)->sgotplt;
2710 goto get_vma;
2711
2712 case DT_JMPREL:
2713 s = elf_hash_table (info)->srelplt;
2714 get_vma:
2715 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
2716 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2717 break;
2718
2719 case DT_PLTRELSZ:
2720 s = elf_hash_table (info)->srelplt;
2721 dyn.d_un.d_val = s->size;
2722 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2723 break;
2724 }
2725 }
99706f30
SR		 2726
2727 }
2728
2729 /* Fill in the first three entries in the global offset table. */
2730 if (sgot->size > 0)
2731 {
2732 if (sdyn == NULL)
07d6d2b8 2733 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
99706f30 2734 else
07d6d2b8
AM		 2735 bfd_put_32 (output_bfd,
2736 sdyn->output_section->vma + sdyn->output_offset,
2737 sgot->contents);
99706f30
SR		 2738 }
2739
2740 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
2741
2742 return TRUE;
2743}
2744
2745/* Given a .data.rel section and a .emreloc in-memory section, store
2746 relocation information into the .emreloc section which can be
2747 used at runtime to relocate the section. This is called by the
2748 linker when the --embedded-relocs switch is used. This is called
2749 after the add_symbols entry point has been called for all the
2750 objects, and before the final_link entry point is called. */
2751
2752bfd_boolean
2753bfd_cr16_elf32_create_embedded_relocs (bfd *abfd,
07d6d2b8
AM		 2754 struct bfd_link_info *info,
2755 asection *datasec,
2756 asection *relsec,
2757 char **errmsg)
99706f30
SR		 2758{
2759 Elf_Internal_Shdr *symtab_hdr;
2760 Elf_Internal_Sym *isymbuf = NULL;
2761 Elf_Internal_Rela *internal_relocs = NULL;
2762 Elf_Internal_Rela *irel, *irelend;
2763 bfd_byte *p;
2764 bfd_size_type amt;
2765
0e1862bb 2766 BFD_ASSERT (! bfd_link_relocatable (info));
99706f30
SR		 2767
2768 *errmsg = NULL;
2769
2770 if (datasec->reloc_count == 0)
2771 return TRUE;
2772
2773 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2774
2775 /* Get a copy of the native relocations. */
2776 internal_relocs = (_bfd_elf_link_read_relocs
07d6d2b8 2777 (abfd, datasec, NULL, NULL, info->keep_memory));
99706f30
SR		 2778 if (internal_relocs == NULL)
2779 goto error_return;
2780
2781 amt = (bfd_size_type) datasec->reloc_count * 8;
2782 relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
2783 if (relsec->contents == NULL)
2784 goto error_return;
2785
2786 p = relsec->contents;
2787
2788 irelend = internal_relocs + datasec->reloc_count;
2789 for (irel = internal_relocs; irel < irelend; irel++, p += 8)
2790 {
2791 asection *targetsec;
2792
2793 /* We are going to write a four byte longword into the runtime
2794 reloc section. The longword will be the address in the data
2795 section which must be relocated. It is followed by the name
2796 of the target section NUL-padded or truncated to 8
2797 characters. */
2798
2799 /* We can only relocate absolute longword relocs at run time. */
2800 if (!((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a)
07d6d2b8
AM		 2801 || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32)))
2802 {
0aa13fee 2803 *errmsg = _("unsupported relocation type");
07d6d2b8
AM		 2804 bfd_set_error (bfd_error_bad_value);
2805 goto error_return;
2806 }
99706f30
SR		 2807
2808 /* Get the target section referred to by the reloc. */
2809 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
07d6d2b8
AM		 2810 {
2811 /* A local symbol. */
2812 Elf_Internal_Sym *isym;
2813
2814 /* Read this BFD's local symbols if we haven't done so already. */
2815 if (isymbuf == NULL)
2816 {
2817 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2818 if (isymbuf == NULL)
2819 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
2820 symtab_hdr->sh_info, 0,
2821 NULL, NULL, NULL);
2822 if (isymbuf == NULL)
2823 goto error_return;
2824 }
2825
2826 isym = isymbuf + ELF32_R_SYM (irel->r_info);
2827 targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
2828 }
99706f30 2829 else
07d6d2b8
AM		 2830 {
2831 unsigned long indx;
2832 struct elf_link_hash_entry *h;
2833
2834 /* An external symbol. */
2835 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
2836 h = elf_sym_hashes (abfd)[indx];
2837 BFD_ASSERT (h != NULL);
2838 if (h->root.type == bfd_link_hash_defined
2839 || h->root.type == bfd_link_hash_defweak)
2840 targetsec = h->root.u.def.section;
2841 else
2842 targetsec = NULL;
2843 }
99706f30
SR		 2844
2845 bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
2846 memset (p + 4, 0, 4);
2847 if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a)
07d6d2b8
AM		 2848 && (targetsec != NULL) )
2849 strncpy ((char *) p + 4, targetsec->output_section->name, 4);
99706f30
SR		 2850 }
2851
2852 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
2853 free (isymbuf);
2854 if (internal_relocs != NULL
2855 && elf_section_data (datasec)->relocs != internal_relocs)
2856 free (internal_relocs);
2857 return TRUE;
2858
2859error_return:
2860 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
2861 free (isymbuf);
2862 if (internal_relocs != NULL
2863 && elf_section_data (datasec)->relocs != internal_relocs)
2864 free (internal_relocs);
2865 return FALSE;
2866}
2867
2868
2869/* Classify relocation types, such that combreloc can sort them
2870 properly. */
2871
2872static enum elf_reloc_type_class
7e612e98
AM		 2873_bfd_cr16_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
2874 const asection *rel_sec ATTRIBUTE_UNUSED,
2875 const Elf_Internal_Rela *rela)
99706f30
SR		 2876{
2877 switch ((int) ELF32_R_TYPE (rela->r_info))
2878 {
2879 case R_CR16_GOT_REGREL20:
2880 case R_CR16_GOTC_REGREL20:
2881 return reloc_class_relative;
2882 default:
2883 return reloc_class_normal;
2884 }
2885}
2886
3d3d428f 2887/* Definitions for setting CR16 target vector. */
07d6d2b8
AM		 2888#define TARGET_LITTLE_SYM cr16_elf32_vec
2889#define TARGET_LITTLE_NAME "elf32-cr16"
2890#define ELF_ARCH bfd_arch_cr16
2891#define ELF_MACHINE_CODE EM_CR16
2892#define ELF_MACHINE_ALT1 EM_CR16_OLD
2893#define ELF_MAXPAGESIZE 0x1
2894#define elf_symbol_leading_char '_'
2895
2896#define bfd_elf32_bfd_reloc_type_lookup elf_cr16_reloc_type_lookup
2897#define bfd_elf32_bfd_reloc_name_lookup elf_cr16_reloc_name_lookup
2898#define elf_info_to_howto elf_cr16_info_to_howto
f3185997 2899#define elf_info_to_howto_rel NULL
07d6d2b8
AM		 2900#define elf_backend_relocate_section elf32_cr16_relocate_section
2901#define bfd_elf32_bfd_relax_section elf32_cr16_relax_section
3d3d428f 2902#define bfd_elf32_bfd_get_relocated_section_contents \
07d6d2b8
AM		 2903 elf32_cr16_get_relocated_section_contents
2904#define elf_backend_gc_mark_hook elf32_cr16_gc_mark_hook
2905#define elf_backend_can_gc_sections 1
2906#define elf_backend_rela_normal 1
2907#define elf_backend_check_relocs cr16_elf_check_relocs
99706f30
SR		 2908/* So we can set bits in e_flags. */
2909#define elf_backend_final_write_processing \
07d6d2b8
AM		 2910 _bfd_cr16_elf_final_write_processing
2911#define elf_backend_object_p _bfd_cr16_elf_object_p
99706f30
SR		 2912
2913#define bfd_elf32_bfd_merge_private_bfd_data \
07d6d2b8 2914 _bfd_cr16_elf_merge_private_bfd_data
99706f30
SR		 2915
2916
2917#define bfd_elf32_bfd_link_hash_table_create \
07d6d2b8 2918 elf32_cr16_link_hash_table_create
99706f30
SR		 2919
2920#define elf_backend_create_dynamic_sections \
07d6d2b8 2921 _bfd_cr16_elf_create_dynamic_sections
99706f30 2922#define elf_backend_adjust_dynamic_symbol \
07d6d2b8 2923 _bfd_cr16_elf_adjust_dynamic_symbol
99706f30 2924#define elf_backend_size_dynamic_sections \
07d6d2b8 2925 _bfd_cr16_elf_size_dynamic_sections
d00dd7dc 2926#define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all
99706f30 2927#define elf_backend_finish_dynamic_symbol \
07d6d2b8 2928 _bfd_cr16_elf_finish_dynamic_symbol
99706f30 2929#define elf_backend_finish_dynamic_sections \
07d6d2b8 2930 _bfd_cr16_elf_finish_dynamic_sections
99706f30
SR		 2931
2932#define elf_backend_reloc_type_class _bfd_cr16_elf_reloc_type_class
2933
2934
07d6d2b8
AM		 2935#define elf_backend_want_got_plt 1
2936#define elf_backend_plt_readonly 1
2937#define elf_backend_want_plt_sym 0
2938#define elf_backend_got_header_size 12
64f52338 2939#define elf_backend_dtrel_excludes_plt 1
3d3d428f
NC		 2940
2941#include "elf32-target.h"
GDB Binutils - Deliverables
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