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[deliverable/binutils-gdb.git] / bfd / elf32-cr16.c
1 /* BFD back-end for National Semiconductor's CR16 ELF
2 Copyright 2007, 2008, 2009 Free Software Foundation, Inc.
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
9 the Free Software Foundation; either version 3 of the License, or
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
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
35 struct elf32_cr16_link_hash_entry {
36 /* The basic elf link hash table entry. */
37 struct elf_link_hash_entry root;
38
39 /* For function symbols, the number of times this function is
40 called directly (ie by name). */
41 unsigned int direct_calls;
42
43 /* For function symbols, the size of this function's stack
44 (if <= 255 bytes). We stuff this into "call" instructions
45 to this target when it's valid and profitable to do so.
46
47 This does not include stack allocated by movm! */
48 unsigned char stack_size;
49
50 /* For function symbols, arguments (if any) for movm instruction
51 in the prologue. We stuff this value into "call" instructions
52 to the target when it's valid and profitable to do so. */
53 unsigned char movm_args;
54
55 /* For function symbols, the amount of stack space that would be allocated
56 by the movm instruction. This is redundant with movm_args, but we
57 add it to the hash table to avoid computing it over and over. */
58 unsigned char movm_stack_size;
59
60 /* Used to mark functions which have had redundant parts of their
61 prologue deleted. */
62 #define CR16_DELETED_PROLOGUE_BYTES 0x1
63 unsigned char flags;
64
65 /* Calculated value. */
66 bfd_vma value;
67 };
68
69 /* We derive a hash table from the main elf linker hash table so
70 we can store state variables and a secondary hash table without
71 resorting to global variables. */
72 struct elf32_cr16_link_hash_table {
73 /* The main hash table. */
74 struct elf_link_hash_table root;
75
76 /* A hash table for static functions. We could derive a new hash table
77 instead of using the full elf32_cr16_link_hash_table if we wanted
78 to save some memory. */
79 struct elf32_cr16_link_hash_table *static_hash_table;
80
81 /* Random linker state flags. */
82 #define CR16_HASH_ENTRIES_INITIALIZED 0x1
83 char flags;
84 };
85
86 /* For CR16 linker hash table. */
87
88 /* Get the CR16 ELF linker hash table from a link_info structure. */
89
90 #define elf32_cr16_hash_table(p) \
91 ((struct elf32_cr16_link_hash_table *) ((p)->hash))
92
93 #define elf32_cr16_link_hash_traverse(table, func, info) \
94 (elf_link_hash_traverse \
95 (&(table)->root, \
96 (bfd_boolean (*) ((struct elf_link_hash_entry *, void *))) (func), (info)))
97
98 /* cr16_reloc_map array maps BFD relocation enum into a CRGAS relocation type. */
99
100 struct cr16_reloc_map
101 {
102 bfd_reloc_code_real_type bfd_reloc_enum; /* BFD relocation enum. */
103 unsigned short cr16_reloc_type; /* CR16 relocation type. */
104 };
105
106 static const struct cr16_reloc_map cr16_reloc_map[R_CR16_MAX] =
107 {
108 {BFD_RELOC_NONE, R_CR16_NONE},
109 {BFD_RELOC_CR16_NUM8, R_CR16_NUM8},
110 {BFD_RELOC_CR16_NUM16, R_CR16_NUM16},
111 {BFD_RELOC_CR16_NUM32, R_CR16_NUM32},
112 {BFD_RELOC_CR16_NUM32a, R_CR16_NUM32a},
113 {BFD_RELOC_CR16_REGREL4, R_CR16_REGREL4},
114 {BFD_RELOC_CR16_REGREL4a, R_CR16_REGREL4a},
115 {BFD_RELOC_CR16_REGREL14, R_CR16_REGREL14},
116 {BFD_RELOC_CR16_REGREL14a, R_CR16_REGREL14a},
117 {BFD_RELOC_CR16_REGREL16, R_CR16_REGREL16},
118 {BFD_RELOC_CR16_REGREL20, R_CR16_REGREL20},
119 {BFD_RELOC_CR16_REGREL20a, R_CR16_REGREL20a},
120 {BFD_RELOC_CR16_ABS20, R_CR16_ABS20},
121 {BFD_RELOC_CR16_ABS24, R_CR16_ABS24},
122 {BFD_RELOC_CR16_IMM4, R_CR16_IMM4},
123 {BFD_RELOC_CR16_IMM8, R_CR16_IMM8},
124 {BFD_RELOC_CR16_IMM16, R_CR16_IMM16},
125 {BFD_RELOC_CR16_IMM20, R_CR16_IMM20},
126 {BFD_RELOC_CR16_IMM24, R_CR16_IMM24},
127 {BFD_RELOC_CR16_IMM32, R_CR16_IMM32},
128 {BFD_RELOC_CR16_IMM32a, R_CR16_IMM32a},
129 {BFD_RELOC_CR16_DISP4, R_CR16_DISP4},
130 {BFD_RELOC_CR16_DISP8, R_CR16_DISP8},
131 {BFD_RELOC_CR16_DISP16, R_CR16_DISP16},
132 {BFD_RELOC_CR16_DISP24, R_CR16_DISP24},
133 {BFD_RELOC_CR16_DISP24a, R_CR16_DISP24a},
134 {BFD_RELOC_CR16_SWITCH8, R_CR16_SWITCH8},
135 {BFD_RELOC_CR16_SWITCH16, R_CR16_SWITCH16},
136 {BFD_RELOC_CR16_SWITCH32, R_CR16_SWITCH32},
137 {BFD_RELOC_CR16_GOT_REGREL20, R_CR16_GOT_REGREL20},
138 {BFD_RELOC_CR16_GOTC_REGREL20, R_CR16_GOTC_REGREL20},
139 {BFD_RELOC_CR16_GLOB_DAT, R_CR16_GLOB_DAT}
140 };
141
142 static reloc_howto_type cr16_elf_howto_table[] =
143 {
144 HOWTO (R_CR16_NONE, /* type */
145 0, /* rightshift */
146 2, /* size */
147 32, /* bitsize */
148 FALSE, /* pc_relative */
149 0, /* bitpos */
150 complain_overflow_dont, /* complain_on_overflow */
151 bfd_elf_generic_reloc, /* special_function */
152 "R_CR16_NONE", /* name */
153 FALSE, /* partial_inplace */
154 0, /* src_mask */
155 0, /* dst_mask */
156 FALSE), /* pcrel_offset */
157
158 HOWTO (R_CR16_NUM8, /* type */
159 0, /* rightshift */
160 0, /* size */
161 8, /* 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_NUM8", /* name */
167 FALSE, /* partial_inplace */
168 0x0, /* src_mask */
169 0xff, /* dst_mask */
170 FALSE), /* pcrel_offset */
171
172 HOWTO (R_CR16_NUM16, /* type */
173 0, /* rightshift */
174 1, /* size */
175 16, /* 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_NUM16", /* name */
181 FALSE, /* partial_inplace */
182 0x0, /* src_mask */
183 0xffff, /* dst_mask */
184 FALSE), /* pcrel_offset */
185
186 HOWTO (R_CR16_NUM32, /* type */
187 0, /* rightshift */
188 2, /* size */
189 32, /* 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_NUM32", /* name */
195 FALSE, /* partial_inplace */
196 0x0, /* src_mask */
197 0xffffffff, /* dst_mask */
198 FALSE), /* pcrel_offset */
199
200 HOWTO (R_CR16_NUM32a, /* type */
201 1, /* rightshift */
202 2, /* size */
203 32, /* 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_NUM32a", /* name */
209 FALSE, /* partial_inplace */
210 0x0, /* src_mask */
211 0xffffffff, /* dst_mask */
212 FALSE), /* pcrel_offset */
213
214 HOWTO (R_CR16_REGREL4, /* type */
215 0, /* rightshift */
216 0, /* size */
217 4, /* 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_REGREL4", /* name */
223 FALSE, /* partial_inplace */
224 0x0, /* src_mask */
225 0xf, /* dst_mask */
226 FALSE), /* pcrel_offset */
227
228 HOWTO (R_CR16_REGREL4a, /* type */
229 0, /* rightshift */
230 0, /* size */
231 4, /* 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_REGREL4a", /* name */
237 FALSE, /* partial_inplace */
238 0x0, /* src_mask */
239 0xf, /* dst_mask */
240 FALSE), /* pcrel_offset */
241
242 HOWTO (R_CR16_REGREL14, /* type */
243 0, /* rightshift */
244 1, /* size */
245 14, /* 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_REGREL14", /* name */
251 FALSE, /* partial_inplace */
252 0x0, /* src_mask */
253 0x3fff, /* dst_mask */
254 FALSE), /* pcrel_offset */
255
256 HOWTO (R_CR16_REGREL14a, /* type */
257 0, /* rightshift */
258 1, /* size */
259 14, /* 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_REGREL14a", /* name */
265 FALSE, /* partial_inplace */
266 0x0, /* src_mask */
267 0x3fff, /* dst_mask */
268 FALSE), /* pcrel_offset */
269
270 HOWTO (R_CR16_REGREL16, /* type */
271 0, /* rightshift */
272 1, /* size */
273 16, /* 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_REGREL16", /* name */
279 FALSE, /* partial_inplace */
280 0x0, /* src_mask */
281 0xffff, /* dst_mask */
282 FALSE), /* pcrel_offset */
283
284 HOWTO (R_CR16_REGREL20, /* 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_REGREL20", /* name */
293 FALSE, /* partial_inplace */
294 0x0, /* src_mask */
295 0xfffff, /* dst_mask */
296 FALSE), /* pcrel_offset */
297
298 HOWTO (R_CR16_REGREL20a, /* type */
299 0, /* rightshift */
300 2, /* size */
301 20, /* 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_REGREL20a", /* name */
307 FALSE, /* partial_inplace */
308 0x0, /* src_mask */
309 0xfffff, /* dst_mask */
310 FALSE), /* pcrel_offset */
311
312 HOWTO (R_CR16_ABS20, /* type */
313 0, /* rightshift */
314 2, /* size */
315 20, /* 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_ABS20", /* name */
321 FALSE, /* partial_inplace */
322 0x0, /* src_mask */
323 0xfffff, /* dst_mask */
324 FALSE), /* pcrel_offset */
325
326 HOWTO (R_CR16_ABS24, /* type */
327 0, /* rightshift */
328 2, /* size */
329 24, /* 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_ABS24", /* name */
335 FALSE, /* partial_inplace */
336 0x0, /* src_mask */
337 0xffffff, /* dst_mask */
338 FALSE), /* pcrel_offset */
339
340 HOWTO (R_CR16_IMM4, /* type */
341 0, /* rightshift */
342 0, /* size */
343 4, /* 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_IMM4", /* name */
349 FALSE, /* partial_inplace */
350 0x0, /* src_mask */
351 0xf, /* dst_mask */
352 FALSE), /* pcrel_offset */
353
354 HOWTO (R_CR16_IMM8, /* type */
355 0, /* rightshift */
356 0, /* size */
357 8, /* 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_IMM8", /* name */
363 FALSE, /* partial_inplace */
364 0x0, /* src_mask */
365 0xff, /* dst_mask */
366 FALSE), /* pcrel_offset */
367
368 HOWTO (R_CR16_IMM16, /* type */
369 0, /* rightshift */
370 1, /* size */
371 16, /* 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_IMM16", /* name */
377 FALSE, /* partial_inplace */
378 0x0, /* src_mask */
379 0xffff, /* dst_mask */
380 FALSE), /* pcrel_offset */
381
382 HOWTO (R_CR16_IMM20, /* type */
383 0, /* rightshift */
384 2, /* size */
385 20, /* 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_IMM20", /* name */
391 FALSE, /* partial_inplace */
392 0x0, /* src_mask */
393 0xfffff, /* dst_mask */
394 FALSE), /* pcrel_offset */
395
396 HOWTO (R_CR16_IMM24, /* type */
397 0, /* rightshift */
398 2, /* size */
399 24, /* 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_IMM24", /* name */
405 FALSE, /* partial_inplace */
406 0x0, /* src_mask */
407 0xffffff, /* dst_mask */
408 FALSE), /* pcrel_offset */
409
410 HOWTO (R_CR16_IMM32, /* type */
411 0, /* rightshift */
412 2, /* size */
413 32, /* bitsize */
414 FALSE, /* pc_relative */
415 0, /* bitpos */
416 complain_overflow_bitfield,/* complain_on_overflow */
417 bfd_elf_generic_reloc, /* special_function */
418 "R_CR16_IMM32", /* name */
419 FALSE, /* partial_inplace */
420 0x0, /* src_mask */
421 0xffffffff, /* dst_mask */
422 FALSE), /* pcrel_offset */
423
424 HOWTO (R_CR16_IMM32a, /* type */
425 1, /* rightshift */
426 2, /* size */
427 32, /* bitsize */
428 FALSE, /* pc_relative */
429 0, /* bitpos */
430 complain_overflow_bitfield,/* complain_on_overflow */
431 bfd_elf_generic_reloc, /* special_function */
432 "R_CR16_IMM32a", /* name */
433 FALSE, /* partial_inplace */
434 0x0, /* src_mask */
435 0xffffffff, /* dst_mask */
436 FALSE), /* pcrel_offset */
437
438 HOWTO (R_CR16_DISP4, /* type */
439 1, /* rightshift */
440 0, /* size (0 = byte, 1 = short, 2 = long) */
441 4, /* 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_DISP4", /* name */
447 FALSE, /* partial_inplace */
448 0x0, /* src_mask */
449 0xf, /* dst_mask */
450 FALSE), /* pcrel_offset */
451
452 HOWTO (R_CR16_DISP8, /* type */
453 1, /* rightshift */
454 0, /* size (0 = byte, 1 = short, 2 = long) */
455 8, /* bitsize */
456 TRUE, /* pc_relative */
457 0, /* bitpos */
458 complain_overflow_unsigned, /* complain_on_overflow */
459 bfd_elf_generic_reloc, /* special_function */
460 "R_CR16_DISP8", /* name */
461 FALSE, /* partial_inplace */
462 0x0, /* src_mask */
463 0x1ff, /* dst_mask */
464 FALSE), /* pcrel_offset */
465
466 HOWTO (R_CR16_DISP16, /* type */
467 0, /* rightshift REVIITS: To sync with WinIDEA*/
468 1, /* size (0 = byte, 1 = short, 2 = long) */
469 16, /* bitsize */
470 TRUE, /* pc_relative */
471 0, /* bitpos */
472 complain_overflow_unsigned, /* complain_on_overflow */
473 bfd_elf_generic_reloc, /* special_function */
474 "R_CR16_DISP16", /* name */
475 FALSE, /* partial_inplace */
476 0x0, /* src_mask */
477 0x1ffff, /* dst_mask */
478 FALSE), /* pcrel_offset */
479 /* REVISIT: DISP24 should be left-shift by 2 as per ISA doc
480 but its not done, to sync with WinIDEA and CR16 4.1 tools */
481 HOWTO (R_CR16_DISP24, /* type */
482 0, /* rightshift */
483 2, /* size (0 = byte, 1 = short, 2 = long) */
484 24, /* bitsize */
485 TRUE, /* pc_relative */
486 0, /* bitpos */
487 complain_overflow_unsigned, /* complain_on_overflow */
488 bfd_elf_generic_reloc, /* special_function */
489 "R_CR16_DISP24", /* name */
490 FALSE, /* partial_inplace */
491 0x0, /* src_mask */
492 0x1ffffff, /* dst_mask */
493 FALSE), /* pcrel_offset */
494
495 HOWTO (R_CR16_DISP24a, /* type */
496 0, /* rightshift */
497 2, /* size (0 = byte, 1 = short, 2 = long) */
498 24, /* bitsize */
499 TRUE, /* pc_relative */
500 0, /* bitpos */
501 complain_overflow_unsigned, /* complain_on_overflow */
502 bfd_elf_generic_reloc, /* special_function */
503 "R_CR16_DISP24a", /* name */
504 FALSE, /* partial_inplace */
505 0x0, /* src_mask */
506 0xffffff, /* dst_mask */
507 FALSE), /* pcrel_offset */
508
509 /* An 8 bit switch table entry. This is generated for an expression
510 such as ``.byte L1 - L2''. The offset holds the difference
511 between the reloc address and L2. */
512 HOWTO (R_CR16_SWITCH8, /* type */
513 0, /* rightshift */
514 0, /* size (0 = byte, 1 = short, 2 = long) */
515 8, /* bitsize */
516 FALSE, /* pc_relative */
517 0, /* bitpos */
518 complain_overflow_unsigned, /* complain_on_overflow */
519 bfd_elf_generic_reloc, /* special_function */
520 "R_CR16_SWITCH8", /* name */
521 FALSE, /* partial_inplace */
522 0x0, /* src_mask */
523 0xff, /* dst_mask */
524 TRUE), /* pcrel_offset */
525
526 /* A 16 bit switch table entry. This is generated for an expression
527 such as ``.word L1 - L2''. The offset holds the difference
528 between the reloc address and L2. */
529 HOWTO (R_CR16_SWITCH16, /* type */
530 0, /* rightshift */
531 1, /* size (0 = byte, 1 = short, 2 = long) */
532 16, /* bitsize */
533 FALSE, /* pc_relative */
534 0, /* bitpos */
535 complain_overflow_unsigned, /* complain_on_overflow */
536 bfd_elf_generic_reloc, /* special_function */
537 "R_CR16_SWITCH16", /* name */
538 FALSE, /* partial_inplace */
539 0x0, /* src_mask */
540 0xffff, /* dst_mask */
541 TRUE), /* pcrel_offset */
542
543 /* A 32 bit switch table entry. This is generated for an expression
544 such as ``.long L1 - L2''. The offset holds the difference
545 between the reloc address and L2. */
546 HOWTO (R_CR16_SWITCH32, /* type */
547 0, /* rightshift */
548 2, /* size (0 = byte, 1 = short, 2 = long) */
549 32, /* bitsize */
550 FALSE, /* pc_relative */
551 0, /* bitpos */
552 complain_overflow_unsigned, /* complain_on_overflow */
553 bfd_elf_generic_reloc, /* special_function */
554 "R_CR16_SWITCH32", /* name */
555 FALSE, /* partial_inplace */
556 0x0, /* src_mask */
557 0xffffffff, /* dst_mask */
558 TRUE), /* pcrel_offset */
559
560 HOWTO (R_CR16_GOT_REGREL20, /* type */
561 0, /* rightshift */
562 2, /* size */
563 20, /* bitsize */
564 FALSE, /* pc_relative */
565 0, /* bitpos */
566 complain_overflow_bitfield,/* complain_on_overflow */
567 bfd_elf_generic_reloc, /* special_function */
568 "R_CR16_GOT_REGREL20", /* name */
569 TRUE, /* partial_inplace */
570 0x0, /* src_mask */
571 0xfffff, /* dst_mask */
572 FALSE), /* pcrel_offset */
573
574 HOWTO (R_CR16_GOTC_REGREL20, /* type */
575 0, /* rightshift */
576 2, /* size */
577 20, /* bitsize */
578 FALSE, /* pc_relative */
579 0, /* bitpos */
580 complain_overflow_bitfield,/* complain_on_overflow */
581 bfd_elf_generic_reloc, /* special_function */
582 "R_CR16_GOTC_REGREL20", /* name */
583 TRUE, /* partial_inplace */
584 0x0, /* src_mask */
585 0xfffff, /* dst_mask */
586 FALSE), /* pcrel_offset */
587
588 HOWTO (R_CR16_GLOB_DAT, /* type */
589 0, /* rightshift */
590 2, /* size (0 = byte, 1 = short, 2 = long) */
591 32, /* bitsize */
592 FALSE, /* pc_relative */
593 0, /* bitpos */
594 complain_overflow_unsigned, /* complain_on_overflow */
595 bfd_elf_generic_reloc, /* special_function */
596 "R_CR16_GLOB_DAT", /* name */
597 FALSE, /* partial_inplace */
598 0x0, /* src_mask */
599 0xffffffff, /* dst_mask */
600 TRUE) /* pcrel_offset */
601 };
602
603
604 /* Create the GOT section. */
605
606 static bfd_boolean
607 _bfd_cr16_elf_create_got_section (bfd * abfd, struct bfd_link_info * info)
608 {
609 flagword flags;
610 asection * s;
611 struct elf_link_hash_entry * h;
612 const struct elf_backend_data * bed = get_elf_backend_data (abfd);
613 int ptralign;
614
615 /* This function may be called more than once. */
616 if (bfd_get_section_by_name (abfd, ".got") != NULL)
617 return TRUE;
618
619 switch (bed->s->arch_size)
620 {
621 case 16:
622 ptralign = 1;
623 break;
624
625 case 32:
626 ptralign = 2;
627 break;
628
629 default:
630 bfd_set_error (bfd_error_bad_value);
631 return FALSE;
632 }
633
634 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
635 | SEC_LINKER_CREATED);
636
637 s = bfd_make_section_with_flags (abfd, ".got", flags);
638 if (s == NULL
639 || ! bfd_set_section_alignment (abfd, s, ptralign))
640 return FALSE;
641
642 if (bed->want_got_plt)
643 {
644 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
645 if (s == NULL
646 || ! bfd_set_section_alignment (abfd, s, ptralign))
647 return FALSE;
648 }
649
650 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
651 (or .got.plt) section. We don't do this in the linker script
652 because we don't want to define the symbol if we are not creating
653 a global offset table. */
654 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
655 elf_hash_table (info)->hgot = h;
656 if (h == NULL)
657 return FALSE;
658
659 /* The first bit of the global offset table is the header. */
660 s->size += bed->got_header_size;
661
662 return TRUE;
663 }
664
665
666 /* Retrieve a howto ptr using a BFD reloc_code. */
667
668 static reloc_howto_type *
669 elf_cr16_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
670 bfd_reloc_code_real_type code)
671 {
672 unsigned int i;
673
674 for (i = 0; i < R_CR16_MAX; i++)
675 if (code == cr16_reloc_map[i].bfd_reloc_enum)
676 return &cr16_elf_howto_table[cr16_reloc_map[i].cr16_reloc_type];
677
678 _bfd_error_handler ("Unsupported CR16 relocation type: 0x%x\n", code);
679 return NULL;
680 }
681
682 static reloc_howto_type *
683 elf_cr16_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
684 const char *r_name)
685 {
686 unsigned int i;
687
688 for (i = 0; ARRAY_SIZE (cr16_elf_howto_table); i++)
689 if (cr16_elf_howto_table[i].name != NULL
690 && strcasecmp (cr16_elf_howto_table[i].name, r_name) == 0)
691 return cr16_elf_howto_table + i;
692
693 return NULL;
694 }
695
696 /* Retrieve a howto ptr using an internal relocation entry. */
697
698 static void
699 elf_cr16_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
700 Elf_Internal_Rela *dst)
701 {
702 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
703
704 BFD_ASSERT (r_type < (unsigned int) R_CR16_MAX);
705 cache_ptr->howto = cr16_elf_howto_table + r_type;
706 }
707
708 /* Look through the relocs for a section during the first phase.
709 Since we don't do .gots or .plts, we just need to consider the
710 virtual table relocs for gc. */
711
712 static bfd_boolean
713 cr16_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
714 const Elf_Internal_Rela *relocs)
715 {
716 Elf_Internal_Shdr *symtab_hdr;
717 Elf_Internal_Sym * isymbuf = NULL;
718 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
719 const Elf_Internal_Rela *rel;
720 const Elf_Internal_Rela *rel_end;
721 bfd * dynobj;
722 bfd_vma * local_got_offsets;
723 asection * sgot;
724 asection * srelgot;
725
726 sgot = NULL;
727 srelgot = NULL;
728 bfd_boolean result = FALSE;
729
730 if (info->relocatable)
731 return TRUE;
732
733 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
734 sym_hashes = elf_sym_hashes (abfd);
735 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
736 if (!elf_bad_symtab (abfd))
737 sym_hashes_end -= symtab_hdr->sh_info;
738
739 dynobj = elf_hash_table (info)->dynobj;
740 local_got_offsets = elf_local_got_offsets (abfd);
741 rel_end = relocs + sec->reloc_count;
742 for (rel = relocs; rel < rel_end; rel++)
743 {
744 struct elf_link_hash_entry *h;
745 unsigned long r_symndx;
746
747 r_symndx = ELF32_R_SYM (rel->r_info);
748 if (r_symndx < symtab_hdr->sh_info)
749 h = NULL;
750 else
751 {
752 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
753 while (h->root.type == bfd_link_hash_indirect
754 || h->root.type == bfd_link_hash_warning)
755 h = (struct elf_link_hash_entry *) h->root.u.i.link;
756 }
757
758 /* Some relocs require a global offset table. */
759 if (dynobj == NULL)
760 {
761 switch (ELF32_R_TYPE (rel->r_info))
762 {
763 case R_CR16_GOT_REGREL20:
764 case R_CR16_GOTC_REGREL20:
765 elf_hash_table (info)->dynobj = dynobj = abfd;
766 if (! _bfd_cr16_elf_create_got_section (dynobj, info))
767 goto fail;
768 break;
769
770 default:
771 break;
772 }
773 }
774
775 switch (ELF32_R_TYPE (rel->r_info))
776 {
777 case R_CR16_GOT_REGREL20:
778 case R_CR16_GOTC_REGREL20:
779 /* This symbol requires a global offset table entry. */
780
781 if (sgot == NULL)
782 {
783 sgot = bfd_get_section_by_name (dynobj, ".got");
784 BFD_ASSERT (sgot != NULL);
785 }
786
787 if (srelgot == NULL
788 && (h != NULL || info->executable))
789 {
790 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
791 if (srelgot == NULL)
792 {
793 srelgot = bfd_make_section_with_flags (dynobj,
794 ".rela.got",
795 (SEC_ALLOC
796 | SEC_LOAD
797 | SEC_HAS_CONTENTS
798 | SEC_IN_MEMORY
799 | SEC_LINKER_CREATED
800 | SEC_READONLY));
801 if (srelgot == NULL
802 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
803 goto fail;
804 }
805 }
806
807 if (h != NULL)
808 {
809 if (h->got.offset != (bfd_vma) -1)
810 /* We have already allocated space in the .got. */
811 break;
812
813 h->got.offset = sgot->size;
814
815 /* Make sure this symbol is output as a dynamic symbol. */
816 if (h->dynindx == -1)
817 {
818 if (! bfd_elf_link_record_dynamic_symbol (info, h))
819 goto fail;
820 }
821
822 srelgot->size += sizeof (Elf32_External_Rela);
823 }
824 else
825 {
826 /* This is a global offset table entry for a local
827 symbol. */
828 if (local_got_offsets == NULL)
829 {
830 size_t size;
831 unsigned int i;
832
833 size = symtab_hdr->sh_info * sizeof (bfd_vma);
834 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
835
836 if (local_got_offsets == NULL)
837 goto fail;
838
839 elf_local_got_offsets (abfd) = local_got_offsets;
840
841 for (i = 0; i < symtab_hdr->sh_info; i++)
842 local_got_offsets[i] = (bfd_vma) -1;
843 }
844
845 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
846 /* We have already allocated space in the .got. */
847 break;
848
849 local_got_offsets[r_symndx] = sgot->size;
850
851 if (info->executable)
852 /* If we are generating a shared object, we need to
853 output a R_CR16_RELATIVE reloc so that the dynamic
854 linker can adjust this GOT entry. */
855 srelgot->size += sizeof (Elf32_External_Rela);
856 }
857
858 sgot->size += 4;
859 break;
860
861 }
862 }
863
864 result = TRUE;
865 fail:
866 if (isymbuf != NULL)
867 free (isymbuf);
868
869 return result;
870 }
871
872 /* Perform a relocation as part of a final link. */
873
874 static bfd_reloc_status_type
875 cr16_elf_final_link_relocate (reloc_howto_type *howto,
876 bfd *input_bfd,
877 bfd *output_bfd ATTRIBUTE_UNUSED,
878 asection *input_section,
879 bfd_byte *contents,
880 bfd_vma offset,
881 bfd_vma Rvalue,
882 bfd_vma addend,
883 struct elf_link_hash_entry * h,
884 unsigned long symndx ATTRIBUTE_UNUSED,
885 struct bfd_link_info *info ATTRIBUTE_UNUSED,
886 asection *sec ATTRIBUTE_UNUSED,
887 int is_local ATTRIBUTE_UNUSED)
888 {
889 unsigned short r_type = howto->type;
890 bfd_byte *hit_data = contents + offset;
891 bfd_vma reloc_bits, check, Rvalue1;
892
893 bfd * dynobj;
894 bfd_vma * local_got_offsets;
895 asection * sgot;
896
897 dynobj = elf_hash_table (info)->dynobj;
898 local_got_offsets = elf_local_got_offsets (input_bfd);
899
900 sgot = NULL;
901
902
903 switch (r_type)
904 {
905 case R_CR16_IMM4:
906 case R_CR16_IMM20:
907 case R_CR16_ABS20:
908 break;
909
910 case R_CR16_IMM8:
911 case R_CR16_IMM16:
912 case R_CR16_IMM32:
913 case R_CR16_IMM32a:
914 case R_CR16_REGREL4:
915 case R_CR16_REGREL4a:
916 case R_CR16_REGREL14:
917 case R_CR16_REGREL14a:
918 case R_CR16_REGREL16:
919 case R_CR16_REGREL20:
920 case R_CR16_REGREL20a:
921 case R_CR16_GOT_REGREL20:
922 case R_CR16_GOTC_REGREL20:
923 case R_CR16_ABS24:
924 case R_CR16_DISP16:
925 case R_CR16_DISP24:
926 /* 'hit_data' is relative to the start of the instruction, not the
927 relocation offset. Advance it to account for the exact offset. */
928 hit_data += 2;
929 break;
930
931 case R_CR16_NONE:
932 return bfd_reloc_ok;
933 break;
934
935 case R_CR16_DISP4:
936 if (is_local)
937 Rvalue += -1;
938 break;
939
940 case R_CR16_DISP8:
941 case R_CR16_DISP24a:
942 if (is_local)
943 Rvalue -= -1;
944 break;
945
946 case R_CR16_SWITCH8:
947 case R_CR16_SWITCH16:
948 case R_CR16_SWITCH32:
949 /* We only care about the addend, where the difference between
950 expressions is kept. */
951 Rvalue = 0;
952
953 default:
954 break;
955 }
956
957 if (howto->pc_relative)
958 {
959 /* Subtract the address of the section containing the location. */
960 Rvalue -= (input_section->output_section->vma
961 + input_section->output_offset);
962 /* Subtract the position of the location within the section. */
963 Rvalue -= offset;
964 }
965
966 /* Add in supplied addend. */
967 Rvalue += addend;
968
969 /* Complain if the bitfield overflows, whether it is considered
970 as signed or unsigned. */
971 check = Rvalue >> howto->rightshift;
972
973 /* Assumes two's complement. This expression avoids
974 overflow if howto->bitsize is the number of bits in
975 bfd_vma. */
976 reloc_bits = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1;
977
978 /* For GOT and GOTC relocs no boundary checks applied. */
979 if (!((r_type == R_CR16_GOT_REGREL20)
980 || (r_type == R_CR16_GOTC_REGREL20)))
981 {
982 if (((bfd_vma) check & ~reloc_bits) != 0
983 && (((bfd_vma) check & ~reloc_bits)
984 != (-(bfd_vma) 1 & ~reloc_bits)))
985 {
986 /* The above right shift is incorrect for a signed
987 value. See if turning on the upper bits fixes the
988 overflow. */
989 if (howto->rightshift && (bfd_signed_vma) Rvalue < 0)
990 {
991 check |= ((bfd_vma) - 1
992 & ~((bfd_vma) - 1
993 >> howto->rightshift));
994
995 if (((bfd_vma) check & ~reloc_bits)
996 != (-(bfd_vma) 1 & ~reloc_bits))
997 return bfd_reloc_overflow;
998 }
999 else
1000 return bfd_reloc_overflow;
1001 }
1002
1003 /* Drop unwanted bits from the value we are relocating to. */
1004 Rvalue >>= (bfd_vma) howto->rightshift;
1005
1006 /* Apply dst_mask to select only relocatable part of the insn. */
1007 Rvalue &= howto->dst_mask;
1008 }
1009
1010 switch (howto->size)
1011 {
1012 case 0:
1013 if (r_type == R_CR16_DISP8)
1014 {
1015 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
1016 Rvalue = ((Rvalue1 & 0xf000) | ((Rvalue << 4) & 0xf00)
1017 | (Rvalue1 & 0x00f0) | (Rvalue & 0xf));
1018 bfd_put_16 (input_bfd, Rvalue, hit_data);
1019 }
1020 else if (r_type == R_CR16_IMM4)
1021 {
1022 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
1023 Rvalue = (((Rvalue1 & 0xff) << 8) | ((Rvalue << 4) & 0xf0)
1024 | ((Rvalue1 & 0x0f00) >> 8));
1025 bfd_put_16 (input_bfd, Rvalue, hit_data);
1026 }
1027 else if (r_type == R_CR16_DISP4)
1028 {
1029 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
1030 Rvalue = (Rvalue1 | ((Rvalue & 0xf) << 4));
1031 bfd_put_16 (input_bfd, Rvalue, hit_data);
1032 }
1033 else
1034 {
1035 bfd_put_8 (input_bfd, (unsigned char) Rvalue, hit_data);
1036 }
1037 break;
1038
1039 case 1:
1040 if (r_type == R_CR16_DISP16)
1041 {
1042 Rvalue |= (bfd_get_16 (input_bfd, hit_data));
1043 Rvalue = ((Rvalue & 0xfffe) | ((Rvalue >> 16) & 0x1));
1044 }
1045 if (r_type == R_CR16_IMM16)
1046 {
1047 Rvalue1 = bfd_get_16 (input_bfd, hit_data);
1048
1049 /* Add or subtract the offset value. */
1050 if (Rvalue1 & 0x8000)
1051 Rvalue -= (~Rvalue1 + 1) & 0xffff;
1052 else
1053 Rvalue += Rvalue1;
1054
1055 /* Check for range. */
1056 if ((long) Rvalue > 0xffff || (long) Rvalue < 0x0)
1057 return bfd_reloc_overflow;
1058 }
1059
1060 bfd_put_16 (input_bfd, Rvalue, hit_data);
1061 break;
1062
1063 case 2:
1064 if ((r_type == R_CR16_ABS20) || (r_type == R_CR16_IMM20))
1065 {
1066 Rvalue1 = (bfd_get_16 (input_bfd, hit_data + 2)
1067 | (((bfd_get_16 (input_bfd, hit_data) & 0xf) <<16)));
1068
1069 /* Add or subtract the offset value. */
1070 if (Rvalue1 & 0x80000)
1071 Rvalue -= (~Rvalue1 + 1) & 0xfffff;
1072 else
1073 Rvalue += Rvalue1;
1074
1075 /* Check for range. */
1076 if ((long) Rvalue > 0xfffff || (long) Rvalue < 0x0)
1077 return bfd_reloc_overflow;
1078
1079 bfd_put_16 (input_bfd, ((bfd_get_16 (input_bfd, hit_data) & 0xfff0)
1080 | ((Rvalue >> 16) & 0xf)), hit_data);
1081 bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
1082 }
1083 else if (r_type == R_CR16_GOT_REGREL20)
1084 {
1085 asection * sgot = bfd_get_section_by_name (dynobj, ".got");
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 if (! elf_hash_table (info)->dynamic_sections_created
1095 || SYMBOL_REFERENCES_LOCAL (info, h))
1096 /* This is actually a static link, or it is a
1097 -Bsymbolic link and the symbol is defined
1098 locally, or the symbol was forced to be local
1099 because of a version file. We must initialize
1100 this entry in the global offset table.
1101 When doing a dynamic link, we create a .rela.got
1102 relocation entry to initialize the value. This
1103 is done in the finish_dynamic_symbol routine. */
1104 bfd_put_32 (output_bfd, Rvalue, sgot->contents + off);
1105
1106 Rvalue = sgot->output_offset + off;
1107 }
1108 else
1109 {
1110 bfd_vma off;
1111
1112 off = elf_local_got_offsets (input_bfd)[symndx];
1113 bfd_put_32 (output_bfd,Rvalue, sgot->contents + off);
1114
1115 Rvalue = sgot->output_offset + off;
1116 }
1117
1118 Rvalue += addend;
1119
1120 /* REVISIT: if ((long) Rvalue > 0xffffff ||
1121 (long) Rvalue < -0x800000). */
1122 if ((long) Rvalue > 0xffffff || (long) Rvalue < 0)
1123 return bfd_reloc_overflow;
1124
1125
1126 bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data))
1127 | (((Rvalue >> 16) & 0xf) << 8), hit_data);
1128 bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
1129
1130 }
1131 else if (r_type == R_CR16_GOTC_REGREL20)
1132 {
1133 asection * sgot;
1134 sgot = bfd_get_section_by_name (dynobj, ".got");
1135
1136 if (h != NULL)
1137 {
1138 bfd_vma off;
1139
1140 off = h->got.offset;
1141 BFD_ASSERT (off != (bfd_vma) -1);
1142
1143 Rvalue >>=1; /* For code symbols. */
1144
1145 if (! elf_hash_table (info)->dynamic_sections_created
1146 || SYMBOL_REFERENCES_LOCAL (info, h))
1147 /* This is actually a static link, or it is a
1148 -Bsymbolic link and the symbol is defined
1149 locally, or the symbol was forced to be local
1150 because of a version file. We must initialize
1151 this entry in the global offset table.
1152 When doing a dynamic link, we create a .rela.got
1153 relocation entry to initialize the value. This
1154 is done in the finish_dynamic_symbol routine. */
1155 bfd_put_32 (output_bfd, Rvalue, sgot->contents + off);
1156
1157 Rvalue = sgot->output_offset + off;
1158 }
1159 else
1160 {
1161 bfd_vma off;
1162
1163 off = elf_local_got_offsets (input_bfd)[symndx];
1164 Rvalue >>= 1;
1165 bfd_put_32 (output_bfd,Rvalue, sgot->contents + off);
1166 Rvalue = sgot->output_offset + off;
1167 }
1168
1169 Rvalue += addend;
1170
1171 /* Check if any value in DISP. */
1172 Rvalue1 =((bfd_get_32 (input_bfd, hit_data) >>16)
1173 | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16));
1174
1175 /* Add or subtract the offset value. */
1176 if (Rvalue1 & 0x80000)
1177 Rvalue -= (~Rvalue1 + 1) & 0xfffff;
1178 else
1179 Rvalue += Rvalue1;
1180
1181 /* Check for range. */
1182 /* REVISIT: if ((long) Rvalue > 0xffffff
1183 || (long) Rvalue < -0x800000). */
1184 if ((long) Rvalue > 0xffffff || (long) Rvalue < 0)
1185 return bfd_reloc_overflow;
1186
1187 bfd_put_16 (input_bfd, (bfd_get_16 (input_bfd, hit_data))
1188 | (((Rvalue >> 16) & 0xf) << 8), hit_data);
1189 bfd_put_16 (input_bfd, (Rvalue) & 0xffff, hit_data + 2);
1190 }
1191 else
1192 {
1193 if (r_type == R_CR16_ABS24)
1194 {
1195 Rvalue1 = ((bfd_get_32 (input_bfd, hit_data) >> 16)
1196 | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16)
1197 | (((bfd_get_32 (input_bfd, hit_data) & 0xf) <<20)));
1198
1199 /* Add or subtract the offset value. */
1200 if (Rvalue1 & 0x800000)
1201 Rvalue -= (~Rvalue1 + 1) & 0xffffff;
1202 else
1203 Rvalue += Rvalue1;
1204
1205 /* Check for Range. */
1206 if ((long) Rvalue > 0xffffff || (long) Rvalue < 0x0)
1207 return bfd_reloc_overflow;
1208
1209 Rvalue = ((((Rvalue >> 20) & 0xf) | (((Rvalue >> 16) & 0xf)<<8)
1210 | (bfd_get_32 (input_bfd, hit_data) & 0xf0f0))
1211 | ((Rvalue & 0xffff) << 16));
1212 }
1213 else if (r_type == R_CR16_DISP24)
1214 {
1215 Rvalue = ((((Rvalue >> 20)& 0xf) | (((Rvalue >>16) & 0xf)<<8)
1216 | (bfd_get_16 (input_bfd, hit_data)))
1217 | (((Rvalue & 0xfffe) | ((Rvalue >> 24) & 0x1)) << 16));
1218 }
1219 else if ((r_type == R_CR16_IMM32) || (r_type == R_CR16_IMM32a))
1220 {
1221 Rvalue1 =((((bfd_get_32 (input_bfd, hit_data)) >> 16) &0xffff)
1222 | (((bfd_get_32 (input_bfd, hit_data)) &0xffff)) << 16);
1223
1224 /* Add or subtract the offset value. */
1225 if (Rvalue1 & 0x80000000)
1226 Rvalue -= (~Rvalue1 + 1) & 0xffffffff;
1227 else
1228 Rvalue += Rvalue1;
1229
1230 /* Check for range. */
1231 if (Rvalue > 0xffffffff || (long) Rvalue < 0x0)
1232 return bfd_reloc_overflow;
1233
1234 Rvalue = (((Rvalue >> 16)& 0xffff) | (Rvalue & 0xffff) << 16);
1235 }
1236 else if (r_type == R_CR16_DISP24a)
1237 {
1238 Rvalue = (((Rvalue & 0xfffffe) | (Rvalue >> 23)));
1239 Rvalue = ((Rvalue >> 16) & 0xff) | ((Rvalue & 0xffff) << 16)
1240 | (bfd_get_32 (input_bfd, hit_data));
1241 }
1242 else if ((r_type == R_CR16_REGREL20)
1243 || (r_type == R_CR16_REGREL20a))
1244 {
1245 Rvalue1 = ((bfd_get_32 (input_bfd, hit_data) >> 16)
1246 | (((bfd_get_32 (input_bfd, hit_data) & 0xfff) >> 8) <<16));
1247 /* Add or subtract the offset value. */
1248 if (Rvalue1 & 0x80000)
1249 Rvalue -= (~Rvalue1 + 1) & 0xfffff;
1250 else
1251 Rvalue += Rvalue1;
1252
1253 /* Check for range. */
1254 if ((long) Rvalue > 0xfffff || (long) Rvalue < 0x0)
1255 return bfd_reloc_overflow;
1256
1257 Rvalue = (((((Rvalue >> 20)& 0xf) | (((Rvalue >>16) & 0xf)<<8)
1258 | ((Rvalue & 0xffff) << 16)))
1259 | (bfd_get_32 (input_bfd, hit_data) & 0xf0ff));
1260
1261 }
1262 else if (r_type == R_CR16_NUM32)
1263 {
1264 Rvalue1 = (bfd_get_32 (input_bfd, hit_data));
1265
1266 /* Add or subtract the offset value */
1267 if (Rvalue1 & 0x80000000)
1268 Rvalue -= (~Rvalue1 + 1) & 0xffffffff;
1269 else
1270 Rvalue += Rvalue1;
1271
1272 /* Check for Ranga */
1273 if (Rvalue > 0xffffffff)
1274 return bfd_reloc_overflow;
1275 }
1276
1277 bfd_put_32 (input_bfd, Rvalue, hit_data);
1278 }
1279 break;
1280
1281 default:
1282 return bfd_reloc_notsupported;
1283 }
1284
1285 return bfd_reloc_ok;
1286 }
1287
1288 /* Delete some bytes from a section while relaxing. */
1289
1290 static bfd_boolean
1291 elf32_cr16_relax_delete_bytes (struct bfd_link_info *link_info, bfd *abfd,
1292 asection *sec, bfd_vma addr, int count)
1293 {
1294 Elf_Internal_Shdr *symtab_hdr;
1295 unsigned int sec_shndx;
1296 bfd_byte *contents;
1297 Elf_Internal_Rela *irel, *irelend;
1298 Elf_Internal_Rela *irelalign;
1299 bfd_vma toaddr;
1300 Elf_Internal_Sym *isym;
1301 Elf_Internal_Sym *isymend;
1302 struct elf_link_hash_entry **sym_hashes;
1303 struct elf_link_hash_entry **end_hashes;
1304 struct elf_link_hash_entry **start_hashes;
1305 unsigned int symcount;
1306
1307 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
1308
1309 contents = elf_section_data (sec)->this_hdr.contents;
1310
1311 /* The deletion must stop at the next ALIGN reloc for an aligment
1312 power larger than the number of bytes we are deleting. */
1313 irelalign = NULL;
1314 toaddr = sec->size;
1315
1316 irel = elf_section_data (sec)->relocs;
1317 irelend = irel + sec->reloc_count;
1318
1319 /* Actually delete the bytes. */
1320 memmove (contents + addr, contents + addr + count,
1321 (size_t) (toaddr - addr - count));
1322 sec->size -= count;
1323
1324 /* Adjust all the relocs. */
1325 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
1326 /* Get the new reloc address. */
1327 if ((irel->r_offset > addr && irel->r_offset < toaddr))
1328 irel->r_offset -= count;
1329
1330 /* Adjust the local symbols defined in this section. */
1331 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1332 isym = (Elf_Internal_Sym *) symtab_hdr->contents;
1333 for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
1334 {
1335 if (isym->st_shndx == sec_shndx
1336 && isym->st_value > addr
1337 && isym->st_value < toaddr)
1338 {
1339 /* Adjust the addend of SWITCH relocations in this section,
1340 which reference this local symbol. */
1341 #if 0
1342 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
1343 {
1344 unsigned long r_symndx;
1345 Elf_Internal_Sym *rsym;
1346 bfd_vma addsym, subsym;
1347
1348 /* Skip if not a SWITCH relocation. */
1349 if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH8
1350 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH16
1351 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_SWITCH32)
1352 continue;
1353
1354 r_symndx = ELF32_R_SYM (irel->r_info);
1355 rsym = (Elf_Internal_Sym *) symtab_hdr->contents + r_symndx;
1356
1357 /* Skip if not the local adjusted symbol. */
1358 if (rsym != isym)
1359 continue;
1360
1361 addsym = isym->st_value;
1362 subsym = addsym - irel->r_addend;
1363
1364 /* Fix the addend only when -->> (addsym > addr >= subsym). */
1365 if (subsym <= addr)
1366 irel->r_addend -= count;
1367 else
1368 continue;
1369 }
1370 #endif
1371
1372 isym->st_value -= count;
1373 }
1374 }
1375
1376 /* Now adjust the global symbols defined in this section. */
1377 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
1378 - symtab_hdr->sh_info);
1379 sym_hashes = start_hashes = elf_sym_hashes (abfd);
1380 end_hashes = sym_hashes + symcount;
1381
1382 for (; sym_hashes < end_hashes; sym_hashes++)
1383 {
1384 struct elf_link_hash_entry *sym_hash = *sym_hashes;
1385
1386 /* The '--wrap SYMBOL' option is causing a pain when the object file,
1387 containing the definition of __wrap_SYMBOL, includes a direct
1388 call to SYMBOL as well. Since both __wrap_SYMBOL and SYMBOL reference
1389 the same symbol (which is __wrap_SYMBOL), but still exist as two
1390 different symbols in 'sym_hashes', we don't want to adjust
1391 the global symbol __wrap_SYMBOL twice.
1392 This check is only relevant when symbols are being wrapped. */
1393 if (link_info->wrap_hash != NULL)
1394 {
1395 struct elf_link_hash_entry **cur_sym_hashes;
1396
1397 /* Loop only over the symbols whom been already checked. */
1398 for (cur_sym_hashes = start_hashes; cur_sym_hashes < sym_hashes;
1399 cur_sym_hashes++)
1400 /* If the current symbol is identical to 'sym_hash', that means
1401 the symbol was already adjusted (or at least checked). */
1402 if (*cur_sym_hashes == sym_hash)
1403 break;
1404
1405 /* Don't adjust the symbol again. */
1406 if (cur_sym_hashes < sym_hashes)
1407 continue;
1408 }
1409
1410 if ((sym_hash->root.type == bfd_link_hash_defined
1411 || sym_hash->root.type == bfd_link_hash_defweak)
1412 && sym_hash->root.u.def.section == sec
1413 && sym_hash->root.u.def.value > addr
1414 && sym_hash->root.u.def.value < toaddr)
1415 sym_hash->root.u.def.value -= count;
1416 }
1417
1418 return TRUE;
1419 }
1420
1421 /* Relocate a CR16 ELF section. */
1422
1423 static bfd_boolean
1424 elf32_cr16_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
1425 bfd *input_bfd, asection *input_section,
1426 bfd_byte *contents, Elf_Internal_Rela *relocs,
1427 Elf_Internal_Sym *local_syms,
1428 asection **local_sections)
1429 {
1430 Elf_Internal_Shdr *symtab_hdr;
1431 struct elf_link_hash_entry **sym_hashes;
1432 Elf_Internal_Rela *rel, *relend;
1433
1434 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1435 sym_hashes = elf_sym_hashes (input_bfd);
1436
1437 rel = relocs;
1438 relend = relocs + input_section->reloc_count;
1439 for (; rel < relend; rel++)
1440 {
1441 int r_type;
1442 reloc_howto_type *howto;
1443 unsigned long r_symndx;
1444 Elf_Internal_Sym *sym;
1445 asection *sec;
1446 struct elf_link_hash_entry *h;
1447 bfd_vma relocation;
1448 bfd_reloc_status_type r;
1449
1450 r_symndx = ELF32_R_SYM (rel->r_info);
1451 r_type = ELF32_R_TYPE (rel->r_info);
1452 howto = cr16_elf_howto_table + (r_type);
1453
1454 h = NULL;
1455 sym = NULL;
1456 sec = NULL;
1457 if (r_symndx < symtab_hdr->sh_info)
1458 {
1459 sym = local_syms + r_symndx;
1460 sec = local_sections[r_symndx];
1461 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1462 }
1463 else
1464 {
1465 bfd_boolean unresolved_reloc, warned;
1466
1467 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1468 r_symndx, symtab_hdr, sym_hashes,
1469 h, sec, relocation,
1470 unresolved_reloc, warned);
1471 }
1472
1473 if (sec != NULL && elf_discarded_section (sec))
1474 {
1475 /* For relocs against symbols from removed linkonce sections,
1476 or sections discarded by a linker script, we just want the
1477 section contents zeroed. Avoid any special processing. */
1478 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
1479 rel->r_info = 0;
1480 rel->r_addend = 0;
1481 continue;
1482 }
1483
1484 if (info->relocatable)
1485 continue;
1486
1487 r = cr16_elf_final_link_relocate (howto, input_bfd, output_bfd,
1488 input_section,
1489 contents, rel->r_offset,
1490 relocation, rel->r_addend,
1491 (struct elf_link_hash_entry *) h,
1492 r_symndx,
1493 info, sec, h == NULL);
1494
1495 if (r != bfd_reloc_ok)
1496 {
1497 const char *name;
1498 const char *msg = NULL;
1499
1500 if (h != NULL)
1501 name = h->root.root.string;
1502 else
1503 {
1504 name = (bfd_elf_string_from_elf_section
1505 (input_bfd, symtab_hdr->sh_link, sym->st_name));
1506 if (name == NULL || *name == '\0')
1507 name = bfd_section_name (input_bfd, sec);
1508 }
1509
1510 switch (r)
1511 {
1512 case bfd_reloc_overflow:
1513 if (!((*info->callbacks->reloc_overflow)
1514 (info, (h ? &h->root : NULL), name, howto->name,
1515 (bfd_vma) 0, input_bfd, input_section,
1516 rel->r_offset)))
1517 return FALSE;
1518 break;
1519
1520 case bfd_reloc_undefined:
1521 if (!((*info->callbacks->undefined_symbol)
1522 (info, name, input_bfd, input_section,
1523 rel->r_offset, TRUE)))
1524 return FALSE;
1525 break;
1526
1527 case bfd_reloc_outofrange:
1528 msg = _("internal error: out of range error");
1529 goto common_error;
1530
1531 case bfd_reloc_notsupported:
1532 msg = _("internal error: unsupported relocation error");
1533 goto common_error;
1534
1535 case bfd_reloc_dangerous:
1536 msg = _("internal error: dangerous error");
1537 goto common_error;
1538
1539 default:
1540 msg = _("internal error: unknown error");
1541 /* Fall through. */
1542
1543 common_error:
1544 if (!((*info->callbacks->warning)
1545 (info, msg, name, input_bfd, input_section,
1546 rel->r_offset)))
1547 return FALSE;
1548 break;
1549 }
1550 }
1551 }
1552
1553 return TRUE;
1554 }
1555
1556 /* This is a version of bfd_generic_get_relocated_section_contents
1557 which uses elf32_cr16_relocate_section. */
1558
1559 static bfd_byte *
1560 elf32_cr16_get_relocated_section_contents (bfd *output_bfd,
1561 struct bfd_link_info *link_info,
1562 struct bfd_link_order *link_order,
1563 bfd_byte *data,
1564 bfd_boolean relocatable,
1565 asymbol **symbols)
1566 {
1567 Elf_Internal_Shdr *symtab_hdr;
1568 asection *input_section = link_order->u.indirect.section;
1569 bfd *input_bfd = input_section->owner;
1570 asection **sections = NULL;
1571 Elf_Internal_Rela *internal_relocs = NULL;
1572 Elf_Internal_Sym *isymbuf = NULL;
1573
1574 /* We only need to handle the case of relaxing, or of having a
1575 particular set of section contents, specially. */
1576 if (relocatable
1577 || elf_section_data (input_section)->this_hdr.contents == NULL)
1578 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
1579 link_order, data,
1580 relocatable,
1581 symbols);
1582
1583 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1584
1585 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
1586 (size_t) input_section->size);
1587
1588 if ((input_section->flags & SEC_RELOC) != 0
1589 && input_section->reloc_count > 0)
1590 {
1591 Elf_Internal_Sym *isym;
1592 Elf_Internal_Sym *isymend;
1593 asection **secpp;
1594 bfd_size_type amt;
1595
1596 internal_relocs = _bfd_elf_link_read_relocs (input_bfd, input_section,
1597 NULL, NULL, FALSE);
1598 if (internal_relocs == NULL)
1599 goto error_return;
1600
1601 if (symtab_hdr->sh_info != 0)
1602 {
1603 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
1604 if (isymbuf == NULL)
1605 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
1606 symtab_hdr->sh_info, 0,
1607 NULL, NULL, NULL);
1608 if (isymbuf == NULL)
1609 goto error_return;
1610 }
1611
1612 amt = symtab_hdr->sh_info;
1613 amt *= sizeof (asection *);
1614 sections = bfd_malloc (amt);
1615 if (sections == NULL && amt != 0)
1616 goto error_return;
1617
1618 isymend = isymbuf + symtab_hdr->sh_info;
1619 for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
1620 {
1621 asection *isec;
1622
1623 if (isym->st_shndx == SHN_UNDEF)
1624 isec = bfd_und_section_ptr;
1625 else if (isym->st_shndx == SHN_ABS)
1626 isec = bfd_abs_section_ptr;
1627 else if (isym->st_shndx == SHN_COMMON)
1628 isec = bfd_com_section_ptr;
1629 else
1630 isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
1631
1632 *secpp = isec;
1633 }
1634
1635 if (! elf32_cr16_relocate_section (output_bfd, link_info, input_bfd,
1636 input_section, data, internal_relocs,
1637 isymbuf, sections))
1638 goto error_return;
1639
1640 if (sections != NULL)
1641 free (sections);
1642 if (isymbuf != NULL
1643 && symtab_hdr->contents != (unsigned char *) isymbuf)
1644 free (isymbuf);
1645 if (elf_section_data (input_section)->relocs != internal_relocs)
1646 free (internal_relocs);
1647 }
1648
1649 return data;
1650
1651 error_return:
1652 if (sections != NULL)
1653 free (sections);
1654 if (isymbuf != NULL
1655 && symtab_hdr->contents != (unsigned char *) isymbuf)
1656 free (isymbuf);
1657 if (internal_relocs != NULL
1658 && elf_section_data (input_section)->relocs != internal_relocs)
1659 free (internal_relocs);
1660 return NULL;
1661 }
1662
1663 /* Assorted hash table functions. */
1664
1665 /* Initialize an entry in the link hash table. */
1666
1667 /* Create an entry in an CR16 ELF linker hash table. */
1668
1669 static struct bfd_hash_entry *
1670 elf32_cr16_link_hash_newfunc (struct bfd_hash_entry *entry,
1671 struct bfd_hash_table *table,
1672 const char *string)
1673 {
1674 struct elf32_cr16_link_hash_entry *ret =
1675 (struct elf32_cr16_link_hash_entry *) entry;
1676
1677 /* Allocate the structure if it has not already been allocated by a
1678 subclass. */
1679 if (ret == (struct elf32_cr16_link_hash_entry *) NULL)
1680 ret = ((struct elf32_cr16_link_hash_entry *)
1681 bfd_hash_allocate (table,
1682 sizeof (struct elf32_cr16_link_hash_entry)));
1683 if (ret == (struct elf32_cr16_link_hash_entry *) NULL)
1684 return (struct bfd_hash_entry *) ret;
1685
1686 /* Call the allocation method of the superclass. */
1687 ret = ((struct elf32_cr16_link_hash_entry *)
1688 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1689 table, string));
1690 if (ret != (struct elf32_cr16_link_hash_entry *) NULL)
1691 {
1692 ret->direct_calls = 0;
1693 ret->stack_size = 0;
1694 ret->movm_args = 0;
1695 ret->movm_stack_size = 0;
1696 ret->flags = 0;
1697 ret->value = 0;
1698 }
1699
1700 return (struct bfd_hash_entry *) ret;
1701 }
1702
1703 /* Create an cr16 ELF linker hash table. */
1704
1705 static struct bfd_link_hash_table *
1706 elf32_cr16_link_hash_table_create (bfd *abfd)
1707 {
1708 struct elf32_cr16_link_hash_table *ret;
1709 bfd_size_type amt = sizeof (struct elf32_cr16_link_hash_table);
1710
1711 ret = (struct elf32_cr16_link_hash_table *) bfd_malloc (amt);
1712 if (ret == (struct elf32_cr16_link_hash_table *) NULL)
1713 return NULL;
1714
1715 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1716 elf32_cr16_link_hash_newfunc,
1717 sizeof (struct elf32_cr16_link_hash_entry)))
1718 {
1719 free (ret);
1720 return NULL;
1721 }
1722
1723 ret->flags = 0;
1724 amt = sizeof (struct elf_link_hash_table);
1725 ret->static_hash_table
1726 = (struct elf32_cr16_link_hash_table *) bfd_malloc (amt);
1727 if (ret->static_hash_table == NULL)
1728 {
1729 free (ret);
1730 return NULL;
1731 }
1732
1733 if (!_bfd_elf_link_hash_table_init (&ret->static_hash_table->root, abfd,
1734 elf32_cr16_link_hash_newfunc,
1735 sizeof (struct elf32_cr16_link_hash_entry)))
1736 {
1737 free (ret->static_hash_table);
1738 free (ret);
1739 return NULL;
1740 }
1741 return &ret->root.root;
1742 }
1743
1744 /* Free an cr16 ELF linker hash table. */
1745
1746 static void
1747 elf32_cr16_link_hash_table_free (struct bfd_link_hash_table *hash)
1748 {
1749 struct elf32_cr16_link_hash_table *ret
1750 = (struct elf32_cr16_link_hash_table *) hash;
1751
1752 _bfd_generic_link_hash_table_free
1753 ((struct bfd_link_hash_table *) ret->static_hash_table);
1754 _bfd_generic_link_hash_table_free
1755 ((struct bfd_link_hash_table *) ret);
1756 }
1757
1758 static unsigned long
1759 elf_cr16_mach (flagword flags)
1760 {
1761 switch (flags)
1762 {
1763 case EM_CR16:
1764 default:
1765 return bfd_mach_cr16;
1766 }
1767 }
1768
1769 /* The final processing done just before writing out a CR16 ELF object
1770 file. This gets the CR16 architecture right based on the machine
1771 number. */
1772
1773 static void
1774 _bfd_cr16_elf_final_write_processing (bfd *abfd,
1775 bfd_boolean linker ATTRIBUTE_UNUSED)
1776 {
1777 unsigned long val;
1778 switch (bfd_get_mach (abfd))
1779 {
1780 default:
1781 case bfd_mach_cr16:
1782 val = EM_CR16;
1783 break;
1784 }
1785
1786
1787 elf_elfheader (abfd)->e_flags |= val;
1788 }
1789
1790
1791 static bfd_boolean
1792 _bfd_cr16_elf_object_p (bfd *abfd)
1793 {
1794 bfd_default_set_arch_mach (abfd, bfd_arch_cr16,
1795 elf_cr16_mach (elf_elfheader (abfd)->e_flags));
1796 return TRUE;
1797 }
1798
1799 /* Merge backend specific data from an object file to the output
1800 object file when linking. */
1801
1802 static bfd_boolean
1803 _bfd_cr16_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
1804 {
1805 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
1806 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
1807 return TRUE;
1808
1809 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
1810 && bfd_get_mach (obfd) < bfd_get_mach (ibfd))
1811 {
1812 if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
1813 bfd_get_mach (ibfd)))
1814 return FALSE;
1815 }
1816
1817 return TRUE;
1818 }
1819
1820
1821 /* This function handles relaxing for the CR16.
1822
1823 There's quite a few relaxing opportunites available on the CR16:
1824
1825 * bcond:24 -> bcond:16 1 byte
1826 * bcond:16 -> bcond:8 1 byte
1827 * arithmetic imm32 -> arithmetic imm20 12 bits
1828 * arithmetic imm20/imm16 -> arithmetic imm4 12/16 bits
1829
1830 Symbol- and reloc-reading infrastructure copied from elf-m10200.c. */
1831
1832 static bfd_boolean
1833 elf32_cr16_relax_section (bfd *abfd, asection *sec,
1834 struct bfd_link_info *link_info, bfd_boolean *again)
1835 {
1836 Elf_Internal_Shdr *symtab_hdr;
1837 Elf_Internal_Rela *internal_relocs;
1838 Elf_Internal_Rela *irel, *irelend;
1839 bfd_byte *contents = NULL;
1840 Elf_Internal_Sym *isymbuf = NULL;
1841
1842 /* Assume nothing changes. */
1843 *again = FALSE;
1844
1845 /* We don't have to do anything for a relocatable link, if
1846 this section does not have relocs, or if this is not a
1847 code section. */
1848 if (link_info->relocatable
1849 || (sec->flags & SEC_RELOC) == 0
1850 || sec->reloc_count == 0
1851 || (sec->flags & SEC_CODE) == 0)
1852 return TRUE;
1853
1854 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1855
1856 /* Get a copy of the native relocations. */
1857 internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
1858 link_info->keep_memory);
1859 if (internal_relocs == NULL)
1860 goto error_return;
1861
1862 /* Walk through them looking for relaxing opportunities. */
1863 irelend = internal_relocs + sec->reloc_count;
1864 for (irel = internal_relocs; irel < irelend; irel++)
1865 {
1866 bfd_vma symval;
1867
1868 /* If this isn't something that can be relaxed, then ignore
1869 this reloc. */
1870 if (ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP16
1871 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_DISP24
1872 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM32
1873 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM20
1874 && ELF32_R_TYPE (irel->r_info) != (int) R_CR16_IMM16)
1875 continue;
1876
1877 /* Get the section contents if we haven't done so already. */
1878 if (contents == NULL)
1879 {
1880 /* Get cached copy if it exists. */
1881 if (elf_section_data (sec)->this_hdr.contents != NULL)
1882 contents = elf_section_data (sec)->this_hdr.contents;
1883 /* Go get them off disk. */
1884 else if (!bfd_malloc_and_get_section (abfd, sec, &contents))
1885 goto error_return;
1886 }
1887
1888 /* Read this BFD's local symbols if we haven't done so already. */
1889 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
1890 {
1891 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
1892 if (isymbuf == NULL)
1893 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
1894 symtab_hdr->sh_info, 0,
1895 NULL, NULL, NULL);
1896 if (isymbuf == NULL)
1897 goto error_return;
1898 }
1899
1900 /* Get the value of the symbol referred to by the reloc. */
1901 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
1902 {
1903 /* A local symbol. */
1904 Elf_Internal_Sym *isym;
1905 asection *sym_sec;
1906
1907 isym = isymbuf + ELF32_R_SYM (irel->r_info);
1908 if (isym->st_shndx == SHN_UNDEF)
1909 sym_sec = bfd_und_section_ptr;
1910 else if (isym->st_shndx == SHN_ABS)
1911 sym_sec = bfd_abs_section_ptr;
1912 else if (isym->st_shndx == SHN_COMMON)
1913 sym_sec = bfd_com_section_ptr;
1914 else
1915 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
1916 symval = (isym->st_value
1917 + sym_sec->output_section->vma
1918 + sym_sec->output_offset);
1919 }
1920 else
1921 {
1922 unsigned long indx;
1923 struct elf_link_hash_entry *h;
1924
1925 /* An external symbol. */
1926 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
1927 h = elf_sym_hashes (abfd)[indx];
1928 BFD_ASSERT (h != NULL);
1929
1930 if (h->root.type != bfd_link_hash_defined
1931 && h->root.type != bfd_link_hash_defweak)
1932 /* This appears to be a reference to an undefined
1933 symbol. Just ignore it--it will be caught by the
1934 regular reloc processing. */
1935 continue;
1936
1937 symval = (h->root.u.def.value
1938 + h->root.u.def.section->output_section->vma
1939 + h->root.u.def.section->output_offset);
1940 }
1941
1942 /* For simplicity of coding, we are going to modify the section
1943 contents, the section relocs, and the BFD symbol table. We
1944 must tell the rest of the code not to free up this
1945 information. It would be possible to instead create a table
1946 of changes which have to be made, as is done in coff-mips.c;
1947 that would be more work, but would require less memory when
1948 the linker is run. */
1949
1950 /* Try to turn a 24 branch/call into a 16bit relative
1951 branch/call. */
1952 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP24)
1953 {
1954 bfd_vma value = symval;
1955
1956 /* Deal with pc-relative gunk. */
1957 value -= (sec->output_section->vma + sec->output_offset);
1958 value -= irel->r_offset;
1959 value += irel->r_addend;
1960
1961 /* See if the value will fit in 16 bits, note the high value is
1962 0xfffe + 2 as the target will be two bytes closer if we are
1963 able to relax. */
1964 if ((long) value < 0x10000 && (long) value > -0x10002)
1965 {
1966 unsigned int code;
1967
1968 /* Get the opcode. */
1969 code = (unsigned int) bfd_get_32 (abfd, contents + irel->r_offset);
1970
1971 /* Verify it's a 'bcond' and fix the opcode. */
1972 if ((code & 0xffff) == 0x0010)
1973 bfd_put_16 (abfd, 0x1800 | ((0xf & (code >> 20)) << 4), contents + irel->r_offset);
1974 else
1975 continue;
1976
1977 /* Note that we've changed the relocs, section contents, etc. */
1978 elf_section_data (sec)->relocs = internal_relocs;
1979 elf_section_data (sec)->this_hdr.contents = contents;
1980 symtab_hdr->contents = (unsigned char *) isymbuf;
1981
1982 /* Fix the relocation's type. */
1983 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
1984 R_CR16_DISP16);
1985
1986 /* Delete two bytes of data. */
1987 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
1988 irel->r_offset + 2, 2))
1989 goto error_return;
1990
1991 /* That will change things, so, we should relax again.
1992 Note that this is not required, and it may be slow. */
1993 *again = TRUE;
1994 }
1995 }
1996
1997 /* Try to turn a 16bit pc-relative branch into an
1998 8bit pc-relative branch. */
1999 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_DISP16)
2000 {
2001 bfd_vma value = symval;
2002
2003 /* Deal with pc-relative gunk. */
2004 value -= (sec->output_section->vma + sec->output_offset);
2005 value -= irel->r_offset;
2006 value += irel->r_addend;
2007
2008 /* See if the value will fit in 8 bits, note the high value is
2009 0xfc + 2 as the target will be two bytes closer if we are
2010 able to relax. */
2011 /*if ((long) value < 0x1fa && (long) value > -0x100) REVISIT:range */
2012 if ((long) value < 0xfa && (long) value > -0x100)
2013 {
2014 unsigned short code;
2015
2016 /* Get the opcode. */
2017 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
2018
2019 /* Verify it's a 'bcond' and fix the opcode. */
2020 if ((code & 0xff0f) == 0x1800)
2021 bfd_put_16 (abfd, (code & 0xf0f0), contents + irel->r_offset);
2022 else
2023 continue;
2024
2025 /* Note that we've changed the relocs, section contents, etc. */
2026 elf_section_data (sec)->relocs = internal_relocs;
2027 elf_section_data (sec)->this_hdr.contents = contents;
2028 symtab_hdr->contents = (unsigned char *) isymbuf;
2029
2030 /* Fix the relocation's type. */
2031 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2032 R_CR16_DISP8);
2033
2034 /* Delete two bytes of data. */
2035 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
2036 irel->r_offset + 2, 2))
2037 goto error_return;
2038
2039 /* That will change things, so, we should relax again.
2040 Note that this is not required, and it may be slow. */
2041 *again = TRUE;
2042 }
2043 }
2044
2045 /* Try to turn a 32-bit IMM address into a 20/16-bit IMM address */
2046 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM32)
2047 {
2048 bfd_vma value = symval;
2049 unsigned short is_add_mov = 0;
2050 bfd_vma value1 = 0;
2051
2052 /* Get the existing value from the mcode */
2053 value1 = ((bfd_get_32 (abfd, contents + irel->r_offset + 2) >> 16)
2054 |(((bfd_get_32 (abfd, contents + irel->r_offset + 2) & 0xffff) << 16)));
2055
2056 /* See if the value will fit in 20 bits. */
2057 if ((long) (value + value1) < 0xfffff && (long) (value + value1) > 0)
2058 {
2059 unsigned short code;
2060
2061 /* Get the opcode. */
2062 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
2063
2064 /* Verify it's a 'arithmetic ADDD or MOVD instruction'.
2065 For ADDD and MOVD only, convert to IMM32 -> IMM20. */
2066
2067 if (((code & 0xfff0) == 0x0070) || ((code & 0xfff0) == 0x0020))
2068 is_add_mov = 1;
2069
2070 if (is_add_mov)
2071 {
2072 /* Note that we've changed the relocs, section contents,
2073 etc. */
2074 elf_section_data (sec)->relocs = internal_relocs;
2075 elf_section_data (sec)->this_hdr.contents = contents;
2076 symtab_hdr->contents = (unsigned char *) isymbuf;
2077
2078 /* Fix the opcode. */
2079 if ((code & 0xfff0) == 0x0070) /* For movd. */
2080 bfd_put_8 (abfd, 0x05, contents + irel->r_offset + 1);
2081 else /* code == 0x0020 for addd. */
2082 bfd_put_8 (abfd, 0x04, contents + irel->r_offset + 1);
2083
2084 bfd_put_8 (abfd, (code & 0xf) << 4, contents + irel->r_offset);
2085
2086 /* If existing value is nagavive adjust approriately
2087 place the 16-20bits (ie 4 bit) in new opcode,
2088 as the 0xffffxxxx, the higher 2 byte values removed. */
2089 if (value1 & 0x80000000)
2090 bfd_put_8 (abfd, (0x0f | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset);
2091 else
2092 bfd_put_8 (abfd, (((value1 >> 16)&0xf) | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset);
2093
2094 /* Fix the relocation's type. */
2095 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2096 R_CR16_IMM20);
2097
2098 /* Delete two bytes of data. */
2099 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
2100 irel->r_offset + 2, 2))
2101 goto error_return;
2102
2103 /* That will change things, so, we should relax again.
2104 Note that this is not required, and it may be slow. */
2105 *again = TRUE;
2106 }
2107 }
2108
2109 /* See if the value will fit in 16 bits. */
2110 if ((!is_add_mov)
2111 && ((long)(value + value1) < 0x7fff && (long)(value + value1) > 0))
2112 {
2113 unsigned short code;
2114
2115 /* Get the opcode. */
2116 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
2117
2118 /* Note that we've changed the relocs, section contents, etc. */
2119 elf_section_data (sec)->relocs = internal_relocs;
2120 elf_section_data (sec)->this_hdr.contents = contents;
2121 symtab_hdr->contents = (unsigned char *) isymbuf;
2122
2123 /* Fix the opcode. */
2124 if ((code & 0xf0) == 0x70) /* For movd. */
2125 bfd_put_8 (abfd, 0x54, contents + irel->r_offset + 1);
2126 else if ((code & 0xf0) == 0x20) /* For addd. */
2127 bfd_put_8 (abfd, 0x60, contents + irel->r_offset + 1);
2128 else if ((code & 0xf0) == 0x90) /* For cmpd. */
2129 bfd_put_8 (abfd, 0x56, contents + irel->r_offset + 1);
2130 else
2131 continue;
2132
2133 bfd_put_8 (abfd, 0xb0 | (code & 0xf), contents + irel->r_offset);
2134
2135 /* If existing value is nagavive adjust approriately
2136 place the 12-16bits (ie 4 bit) in new opcode,
2137 as the 0xfffffxxx, the higher 2 byte values removed. */
2138 if (value1 & 0x80000000)
2139 bfd_put_8 (abfd, (0x0f | (bfd_get_8(abfd, contents + irel->r_offset))), contents + irel->r_offset);
2140 else
2141 bfd_put_16 (abfd, value1, contents + irel->r_offset + 2);
2142
2143
2144 /* Fix the relocation's type. */
2145 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2146 R_CR16_IMM16);
2147
2148 /* Delete two bytes of data. */
2149 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
2150 irel->r_offset + 2, 2))
2151 goto error_return;
2152
2153 /* That will change things, so, we should relax again.
2154 Note that this is not required, and it may be slow. */
2155 *again = TRUE;
2156 }
2157 }
2158
2159 #if 0
2160 /* Try to turn a 16bit immediate address into a 4bit
2161 immediate address. */
2162 if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20)
2163 || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM16))
2164 {
2165 bfd_vma value = symval;
2166 bfd_vma value1 = 0;
2167
2168 /* Get the existing value from the mcode */
2169 value1 = ((bfd_get_16 (abfd, contents + irel->r_offset + 2) & 0xffff));
2170
2171 if (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_IMM20)
2172 {
2173 value1 |= ((bfd_get_16 (abfd, contents + irel->r_offset + 1) & 0xf000) << 0x4);
2174 }
2175
2176 /* See if the value will fit in 4 bits. */
2177 if ((((long) (value + value1)) < 0xf)
2178 && (((long) (value + value1)) > 0))
2179 {
2180 unsigned short code;
2181
2182 /* Get the opcode. */
2183 code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
2184
2185 /* Note that we've changed the relocs, section contents, etc. */
2186 elf_section_data (sec)->relocs = internal_relocs;
2187 elf_section_data (sec)->this_hdr.contents = contents;
2188 symtab_hdr->contents = (unsigned char *) isymbuf;
2189
2190 /* Fix the opcode. */
2191 if (((code & 0x0f00) == 0x0400) || ((code & 0x0f00) == 0x0500))
2192 {
2193 if ((code & 0x0f00) == 0x0400) /* For movd imm20. */
2194 bfd_put_8 (abfd, 0x60, contents + irel->r_offset);
2195 else /* For addd imm20. */
2196 bfd_put_8 (abfd, 0x54, contents + irel->r_offset);
2197 bfd_put_8 (abfd, (code & 0xf0) >> 4, contents + irel->r_offset + 1);
2198 }
2199 else
2200 {
2201 if ((code & 0xfff0) == 0x56b0) /* For cmpd imm16. */
2202 bfd_put_8 (abfd, 0x56, contents + irel->r_offset);
2203 else if ((code & 0xfff0) == 0x54b0) /* For movd imm16. */
2204 bfd_put_8 (abfd, 0x54, contents + irel->r_offset);
2205 else if ((code & 0xfff0) == 0x58b0) /* For movb imm16. */
2206 bfd_put_8 (abfd, 0x58, contents + irel->r_offset);
2207 else if ((code & 0xfff0) == 0x5Ab0) /* For movw imm16. */
2208 bfd_put_8 (abfd, 0x5A, contents + irel->r_offset);
2209 else if ((code & 0xfff0) == 0x60b0) /* For addd imm16. */
2210 bfd_put_8 (abfd, 0x60, contents + irel->r_offset);
2211 else if ((code & 0xfff0) == 0x30b0) /* For addb imm16. */
2212 bfd_put_8 (abfd, 0x30, contents + irel->r_offset);
2213 else if ((code & 0xfff0) == 0x2Cb0) /* For addub imm16. */
2214 bfd_put_8 (abfd, 0x2C, contents + irel->r_offset);
2215 else if ((code & 0xfff0) == 0x32b0) /* For adduw imm16. */
2216 bfd_put_8 (abfd, 0x32, contents + irel->r_offset);
2217 else if ((code & 0xfff0) == 0x38b0) /* For subb imm16. */
2218 bfd_put_8 (abfd, 0x38, contents + irel->r_offset);
2219 else if ((code & 0xfff0) == 0x3Cb0) /* For subcb imm16. */
2220 bfd_put_8 (abfd, 0x3C, contents + irel->r_offset);
2221 else if ((code & 0xfff0) == 0x3Fb0) /* For subcw imm16. */
2222 bfd_put_8 (abfd, 0x3F, contents + irel->r_offset);
2223 else if ((code & 0xfff0) == 0x3Ab0) /* For subw imm16. */
2224 bfd_put_8 (abfd, 0x3A, contents + irel->r_offset);
2225 else if ((code & 0xfff0) == 0x50b0) /* For cmpb imm16. */
2226 bfd_put_8 (abfd, 0x50, contents + irel->r_offset);
2227 else if ((code & 0xfff0) == 0x52b0) /* For cmpw imm16. */
2228 bfd_put_8 (abfd, 0x52, contents + irel->r_offset);
2229 else
2230 continue;
2231
2232 bfd_put_8 (abfd, (code & 0xf), contents + irel->r_offset + 1);
2233 }
2234
2235 /* Fix the relocation's type. */
2236 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2237 R_CR16_IMM4);
2238
2239 /* Delete two bytes of data. */
2240 if (!elf32_cr16_relax_delete_bytes (link_info, abfd, sec,
2241 irel->r_offset + 2, 2))
2242 goto error_return;
2243
2244 /* That will change things, so, we should relax again.
2245 Note that this is not required, and it may be slow. */
2246 *again = TRUE;
2247 }
2248 }
2249 #endif
2250 }
2251
2252 if (isymbuf != NULL
2253 && symtab_hdr->contents != (unsigned char *) isymbuf)
2254 {
2255 if (! link_info->keep_memory)
2256 free (isymbuf);
2257 else
2258 /* Cache the symbols for elf_link_input_bfd. */
2259 symtab_hdr->contents = (unsigned char *) isymbuf;
2260 }
2261
2262 if (contents != NULL
2263 && elf_section_data (sec)->this_hdr.contents != contents)
2264 {
2265 if (! link_info->keep_memory)
2266 free (contents);
2267 else
2268 /* Cache the section contents for elf_link_input_bfd. */
2269 elf_section_data (sec)->this_hdr.contents = contents;
2270
2271 }
2272
2273 if (internal_relocs != NULL
2274 && elf_section_data (sec)->relocs != internal_relocs)
2275 free (internal_relocs);
2276
2277 return TRUE;
2278
2279 error_return:
2280 if (isymbuf != NULL
2281 && symtab_hdr->contents != (unsigned char *) isymbuf)
2282 free (isymbuf);
2283 if (contents != NULL
2284 && elf_section_data (sec)->this_hdr.contents != contents)
2285 free (contents);
2286 if (internal_relocs != NULL
2287 && elf_section_data (sec)->relocs != internal_relocs)
2288 free (internal_relocs);
2289
2290 return FALSE;
2291 }
2292
2293 static asection *
2294 elf32_cr16_gc_mark_hook (asection *sec,
2295 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2296 Elf_Internal_Rela *rel ATTRIBUTE_UNUSED,
2297 struct elf_link_hash_entry *h,
2298 Elf_Internal_Sym *sym)
2299 {
2300 if (h == NULL)
2301 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
2302
2303 switch (h->root.type)
2304 {
2305 case bfd_link_hash_defined:
2306 case bfd_link_hash_defweak:
2307 return h->root.u.def.section;
2308
2309 case bfd_link_hash_common:
2310 return h->root.u.c.p->section;
2311
2312 default:
2313 return NULL;
2314 }
2315 }
2316
2317 /* Update the got entry reference counts for the section being removed. */
2318
2319 static bfd_boolean
2320 elf32_cr16_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
2321 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2322 asection *sec ATTRIBUTE_UNUSED,
2323 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
2324 {
2325 /* We don't support garbage collection of GOT and PLT relocs yet. */
2326 return TRUE;
2327 }
2328
2329 /* Create dynamic sections when linking against a dynamic object. */
2330
2331 static bfd_boolean
2332 _bfd_cr16_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2333 {
2334 flagword flags;
2335 asection * s;
2336 const struct elf_backend_data * bed = get_elf_backend_data (abfd);
2337 int ptralign = 0;
2338
2339 switch (bed->s->arch_size)
2340 {
2341 case 16:
2342 ptralign = 1;
2343 break;
2344
2345 case 32:
2346 ptralign = 2;
2347 break;
2348
2349 default:
2350 bfd_set_error (bfd_error_bad_value);
2351 return FALSE;
2352 }
2353
2354 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2355 .rel[a].bss sections. */
2356
2357 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2358 | SEC_LINKER_CREATED);
2359
2360 s = bfd_make_section_with_flags (abfd,
2361 (bed->default_use_rela_p
2362 ? ".rela.plt" : ".rel.plt"),
2363 flags | SEC_READONLY);
2364 if (s == NULL
2365 || ! bfd_set_section_alignment (abfd, s, ptralign))
2366 return FALSE;
2367
2368 if (! _bfd_cr16_elf_create_got_section (abfd, info))
2369 return FALSE;
2370
2371 {
2372 const char * secname;
2373 char * relname;
2374 flagword secflags;
2375 asection * sec;
2376
2377 for (sec = abfd->sections; sec; sec = sec->next)
2378 {
2379 secflags = bfd_get_section_flags (abfd, sec);
2380 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
2381 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
2382 continue;
2383
2384 secname = bfd_get_section_name (abfd, sec);
2385 relname = (char *) bfd_malloc (strlen (secname) + 6);
2386 strcpy (relname, ".rela");
2387 strcat (relname, secname);
2388
2389 s = bfd_make_section_with_flags (abfd, relname,
2390 flags | SEC_READONLY);
2391 if (s == NULL
2392 || ! bfd_set_section_alignment (abfd, s, ptralign))
2393 return FALSE;
2394 }
2395 }
2396
2397 if (bed->want_dynbss)
2398 {
2399 /* The .dynbss section is a place to put symbols which are defined
2400 by dynamic objects, are referenced by regular objects, and are
2401 not functions. We must allocate space for them in the process
2402 image and use a R_*_COPY reloc to tell the dynamic linker to
2403 initialize them at run time. The linker script puts the .dynbss
2404 section into the .bss section of the final image. */
2405 s = bfd_make_section_with_flags (abfd, ".dynbss",
2406 SEC_ALLOC | SEC_LINKER_CREATED);
2407 if (s == NULL)
2408 return FALSE;
2409
2410 /* The .rel[a].bss section holds copy relocs. This section is not
2411 normally needed. We need to create it here, though, so that the
2412 linker will map it to an output section. We can't just create it
2413 only if we need it, because we will not know whether we need it
2414 until we have seen all the input files, and the first time the
2415 main linker code calls BFD after examining all the input files
2416 (size_dynamic_sections) the input sections have already been
2417 mapped to the output sections. If the section turns out not to
2418 be needed, we can discard it later. We will never need this
2419 section when generating a shared object, since they do not use
2420 copy relocs. */
2421 if (! info->executable)
2422 {
2423 s = bfd_make_section_with_flags (abfd,
2424 (bed->default_use_rela_p
2425 ? ".rela.bss" : ".rel.bss"),
2426 flags | SEC_READONLY);
2427 if (s == NULL
2428 || ! bfd_set_section_alignment (abfd, s, ptralign))
2429 return FALSE;
2430 }
2431 }
2432
2433 return TRUE;
2434 }
2435 \f
2436 /* Adjust a symbol defined by a dynamic object and referenced by a
2437 regular object. The current definition is in some section of the
2438 dynamic object, but we're not including those sections. We have to
2439 change the definition to something the rest of the link can
2440 understand. */
2441
2442 static bfd_boolean
2443 _bfd_cr16_elf_adjust_dynamic_symbol (struct bfd_link_info * info,
2444 struct elf_link_hash_entry * h)
2445 {
2446 bfd * dynobj;
2447 asection * s;
2448
2449 dynobj = elf_hash_table (info)->dynobj;
2450
2451 /* Make sure we know what is going on here. */
2452 BFD_ASSERT (dynobj != NULL
2453 && (h->needs_plt
2454 || h->u.weakdef != NULL
2455 || (h->def_dynamic
2456 && h->ref_regular
2457 && !h->def_regular)));
2458
2459 /* If this is a function, put it in the procedure linkage table. We
2460 will fill in the contents of the procedure linkage table later,
2461 when we know the address of the .got section. */
2462 if (h->type == STT_FUNC
2463 || h->needs_plt)
2464 {
2465 if (! info->executable
2466 && !h->def_dynamic
2467 && !h->ref_dynamic)
2468 {
2469 /* This case can occur if we saw a PLT reloc in an input
2470 file, but the symbol was never referred to by a dynamic
2471 object. In such a case, we don't actually need to build
2472 a procedure linkage table, and we can just do a REL32
2473 reloc instead. */
2474 BFD_ASSERT (h->needs_plt);
2475 return TRUE;
2476 }
2477
2478 /* Make sure this symbol is output as a dynamic symbol. */
2479 if (h->dynindx == -1)
2480 {
2481 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2482 return FALSE;
2483 }
2484
2485 /* We also need to make an entry in the .got.plt section, which
2486 will be placed in the .got section by the linker script. */
2487
2488 s = bfd_get_section_by_name (dynobj, ".got.plt");
2489 BFD_ASSERT (s != NULL);
2490 s->size += 4;
2491
2492 /* We also need to make an entry in the .rela.plt section. */
2493
2494 s = bfd_get_section_by_name (dynobj, ".rela.plt");
2495 BFD_ASSERT (s != NULL);
2496 s->size += sizeof (Elf32_External_Rela);
2497
2498 return TRUE;
2499 }
2500
2501 /* If this is a weak symbol, and there is a real definition, the
2502 processor independent code will have arranged for us to see the
2503 real definition first, and we can just use the same value. */
2504 if (h->u.weakdef != NULL)
2505 {
2506 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2507 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2508 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2509 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2510 return TRUE;
2511 }
2512
2513 /* This is a reference to a symbol defined by a dynamic object which
2514 is not a function. */
2515
2516 /* If we are creating a shared library, we must presume that the
2517 only references to the symbol are via the global offset table.
2518 For such cases we need not do anything here; the relocations will
2519 be handled correctly by relocate_section. */
2520 if (info->executable)
2521 return TRUE;
2522
2523 /* If there are no references to this symbol that do not use the
2524 GOT, we don't need to generate a copy reloc. */
2525 if (!h->non_got_ref)
2526 return TRUE;
2527
2528 if (h->size == 0)
2529 {
2530 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
2531 h->root.root.string);
2532 return TRUE;
2533 }
2534
2535 /* We must allocate the symbol in our .dynbss section, which will
2536 become part of the .bss section of the executable. There will be
2537 an entry for this symbol in the .dynsym section. The dynamic
2538 object will contain position independent code, so all references
2539 from the dynamic object to this symbol will go through the global
2540 offset table. The dynamic linker will use the .dynsym entry to
2541 determine the address it must put in the global offset table, so
2542 both the dynamic object and the regular object will refer to the
2543 same memory location for the variable. */
2544
2545 s = bfd_get_section_by_name (dynobj, ".dynbss");
2546 BFD_ASSERT (s != NULL);
2547
2548 /* We must generate a R_CR16_COPY reloc to tell the dynamic linker to
2549 copy the initial value out of the dynamic object and into the
2550 runtime process image. We need to remember the offset into the
2551 .rela.bss section we are going to use. */
2552 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2553 {
2554 asection * srel;
2555
2556 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
2557 BFD_ASSERT (srel != NULL);
2558 srel->size += sizeof (Elf32_External_Rela);
2559 h->needs_copy = 1;
2560 }
2561
2562 return _bfd_elf_adjust_dynamic_copy (h, s);
2563 }
2564
2565 /* Set the sizes of the dynamic sections. */
2566
2567 static bfd_boolean
2568 _bfd_cr16_elf_size_dynamic_sections (bfd * output_bfd,
2569 struct bfd_link_info * info)
2570 {
2571 bfd * dynobj;
2572 asection * s;
2573 bfd_boolean plt;
2574 bfd_boolean relocs;
2575 bfd_boolean reltext;
2576
2577 dynobj = elf_hash_table (info)->dynobj;
2578 BFD_ASSERT (dynobj != NULL);
2579
2580 if (elf_hash_table (info)->dynamic_sections_created)
2581 {
2582 /* Set the contents of the .interp section to the interpreter. */
2583 if (info->executable)
2584 {
2585 #if 0
2586 s = bfd_get_section_by_name (dynobj, ".interp");
2587 BFD_ASSERT (s != NULL);
2588 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2589 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2590 #endif
2591 }
2592 }
2593 else
2594 {
2595 /* We may have created entries in the .rela.got section.
2596 However, if we are not creating the dynamic sections, we will
2597 not actually use these entries. Reset the size of .rela.got,
2598 which will cause it to get stripped from the output file
2599 below. */
2600 s = bfd_get_section_by_name (dynobj, ".rela.got");
2601 if (s != NULL)
2602 s->size = 0;
2603 }
2604
2605 /* The check_relocs and adjust_dynamic_symbol entry points have
2606 determined the sizes of the various dynamic sections. Allocate
2607 memory for them. */
2608 plt = FALSE;
2609 relocs = FALSE;
2610 reltext = FALSE;
2611 for (s = dynobj->sections; s != NULL; s = s->next)
2612 {
2613 const char * name;
2614
2615 if ((s->flags & SEC_LINKER_CREATED) == 0)
2616 continue;
2617
2618 /* It's OK to base decisions on the section name, because none
2619 of the dynobj section names depend upon the input files. */
2620 name = bfd_get_section_name (dynobj, s);
2621
2622 if (strcmp (name, ".plt") == 0)
2623 {
2624 /* Remember whether there is a PLT. */
2625 plt = s->size != 0;
2626 }
2627 else if (CONST_STRNEQ (name, ".rela"))
2628 {
2629 if (s->size != 0)
2630 {
2631 asection * target;
2632
2633 /* Remember whether there are any reloc sections other
2634 than .rela.plt. */
2635 if (strcmp (name, ".rela.plt") != 0)
2636 {
2637 const char * outname;
2638
2639 relocs = TRUE;
2640
2641 /* If this relocation section applies to a read only
2642 section, then we probably need a DT_TEXTREL
2643 entry. The entries in the .rela.plt section
2644 really apply to the .got section, which we
2645 created ourselves and so know is not readonly. */
2646 outname = bfd_get_section_name (output_bfd,
2647 s->output_section);
2648 target = bfd_get_section_by_name (output_bfd, outname + 5);
2649 if (target != NULL
2650 && (target->flags & SEC_READONLY) != 0
2651 && (target->flags & SEC_ALLOC) != 0)
2652 reltext = TRUE;
2653 }
2654
2655 /* We use the reloc_count field as a counter if we need
2656 to copy relocs into the output file. */
2657 s->reloc_count = 0;
2658 }
2659 }
2660 else if (! CONST_STRNEQ (name, ".got")
2661 && strcmp (name, ".dynbss") != 0)
2662 /* It's not one of our sections, so don't allocate space. */
2663 continue;
2664
2665 if (s->size == 0)
2666 {
2667 /* If we don't need this section, strip it from the
2668 output file. This is mostly to handle .rela.bss and
2669 .rela.plt. We must create both sections in
2670 create_dynamic_sections, because they must be created
2671 before the linker maps input sections to output
2672 sections. The linker does that before
2673 adjust_dynamic_symbol is called, and it is that
2674 function which decides whether anything needs to go
2675 into these sections. */
2676 s->flags |= SEC_EXCLUDE;
2677 continue;
2678 }
2679
2680 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2681 continue;
2682
2683 /* Allocate memory for the section contents. We use bfd_zalloc
2684 here in case unused entries are not reclaimed before the
2685 section's contents are written out. This should not happen,
2686 but this way if it does, we get a R_CR16_NONE reloc
2687 instead of garbage. */
2688 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2689 if (s->contents == NULL)
2690 return FALSE;
2691 }
2692
2693 if (elf_hash_table (info)->dynamic_sections_created)
2694 {
2695 /* Add some entries to the .dynamic section. We fill in the
2696 values later, in _bfd_cr16_elf_finish_dynamic_sections,
2697 but we must add the entries now so that we get the correct
2698 size for the .dynamic section. The DT_DEBUG entry is filled
2699 in by the dynamic linker and used by the debugger. */
2700 if (! info->executable)
2701 {
2702 if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
2703 return FALSE;
2704 }
2705
2706 if (plt)
2707 {
2708 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
2709 || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
2710 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
2711 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
2712 return FALSE;
2713 }
2714
2715 if (relocs)
2716 {
2717 if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
2718 || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
2719 || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
2720 sizeof (Elf32_External_Rela)))
2721 return FALSE;
2722 }
2723
2724 if (reltext)
2725 {
2726 if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
2727 return FALSE;
2728 }
2729 }
2730
2731 return TRUE;
2732 }
2733
2734 /* Finish up dynamic symbol handling. We set the contents of various
2735 dynamic sections here. */
2736
2737 static bfd_boolean
2738 _bfd_cr16_elf_finish_dynamic_symbol (bfd * output_bfd,
2739 struct bfd_link_info * info,
2740 struct elf_link_hash_entry * h,
2741 Elf_Internal_Sym * sym)
2742 {
2743 bfd * dynobj;
2744
2745 dynobj = elf_hash_table (info)->dynobj;
2746
2747 if (h->got.offset != (bfd_vma) -1)
2748 {
2749 asection * sgot;
2750 asection * srel;
2751 Elf_Internal_Rela rel;
2752
2753 /* This symbol has an entry in the global offset table. Set it up. */
2754
2755 sgot = bfd_get_section_by_name (dynobj, ".got");
2756 srel = bfd_get_section_by_name (dynobj, ".rela.got");
2757 BFD_ASSERT (sgot != NULL && srel != NULL);
2758
2759 rel.r_offset = (sgot->output_section->vma
2760 + sgot->output_offset
2761 + (h->got.offset & ~1));
2762
2763 /* If this is a -Bsymbolic link, and the symbol is defined
2764 locally, we just want to emit a RELATIVE reloc. Likewise if
2765 the symbol was forced to be local because of a version file.
2766 The entry in the global offset table will already have been
2767 initialized in the relocate_section function. */
2768 if (info->executable
2769 && (info->symbolic || h->dynindx == -1)
2770 && h->def_regular)
2771 {
2772 rel.r_info = ELF32_R_INFO (0, R_CR16_GOT_REGREL20);
2773 rel.r_addend = (h->root.u.def.value
2774 + h->root.u.def.section->output_section->vma
2775 + h->root.u.def.section->output_offset);
2776 }
2777 else
2778 {
2779 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
2780 rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20);
2781 rel.r_addend = 0;
2782 }
2783
2784 bfd_elf32_swap_reloca_out (output_bfd, &rel,
2785 (bfd_byte *) ((Elf32_External_Rela *) srel->contents
2786 + srel->reloc_count));
2787 ++ srel->reloc_count;
2788 }
2789
2790 if (h->needs_copy)
2791 {
2792 asection * s;
2793 Elf_Internal_Rela rel;
2794
2795 /* This symbol needs a copy reloc. Set it up. */
2796 BFD_ASSERT (h->dynindx != -1
2797 && (h->root.type == bfd_link_hash_defined
2798 || h->root.type == bfd_link_hash_defweak));
2799
2800 s = bfd_get_section_by_name (h->root.u.def.section->owner,
2801 ".rela.bss");
2802 BFD_ASSERT (s != NULL);
2803
2804 rel.r_offset = (h->root.u.def.value
2805 + h->root.u.def.section->output_section->vma
2806 + h->root.u.def.section->output_offset);
2807 rel.r_info = ELF32_R_INFO (h->dynindx, R_CR16_GOT_REGREL20);
2808 rel.r_addend = 0;
2809 bfd_elf32_swap_reloca_out (output_bfd, &rel,
2810 (bfd_byte *) ((Elf32_External_Rela *) s->contents
2811 + s->reloc_count));
2812 ++ s->reloc_count;
2813 }
2814
2815 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
2816 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2817 || h == elf_hash_table (info)->hgot)
2818 sym->st_shndx = SHN_ABS;
2819
2820 return TRUE;
2821 }
2822
2823 /* Finish up the dynamic sections. */
2824
2825 static bfd_boolean
2826 _bfd_cr16_elf_finish_dynamic_sections (bfd * output_bfd,
2827 struct bfd_link_info * info)
2828 {
2829 bfd * dynobj;
2830 asection * sgot;
2831 asection * sdyn;
2832
2833 dynobj = elf_hash_table (info)->dynobj;
2834
2835 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
2836 BFD_ASSERT (sgot != NULL);
2837 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2838
2839 if (elf_hash_table (info)->dynamic_sections_created)
2840 {
2841 Elf32_External_Dyn * dyncon;
2842 Elf32_External_Dyn * dynconend;
2843
2844 BFD_ASSERT (sdyn != NULL);
2845
2846 dyncon = (Elf32_External_Dyn *) sdyn->contents;
2847 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
2848
2849 for (; dyncon < dynconend; dyncon++)
2850 {
2851 Elf_Internal_Dyn dyn;
2852 const char * name;
2853 asection * s;
2854
2855 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
2856
2857 switch (dyn.d_tag)
2858 {
2859 default:
2860 break;
2861
2862 case DT_PLTGOT:
2863 name = ".got";
2864 goto get_vma;
2865
2866 case DT_JMPREL:
2867 name = ".rela.plt";
2868 get_vma:
2869 s = bfd_get_section_by_name (output_bfd, name);
2870 BFD_ASSERT (s != NULL);
2871 dyn.d_un.d_ptr = s->vma;
2872 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2873 break;
2874
2875 case DT_PLTRELSZ:
2876 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2877 BFD_ASSERT (s != NULL);
2878 dyn.d_un.d_val = s->size;
2879 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2880 break;
2881
2882 case DT_RELASZ:
2883 /* My reading of the SVR4 ABI indicates that the
2884 procedure linkage table relocs (DT_JMPREL) should be
2885 included in the overall relocs (DT_RELA). This is
2886 what Solaris does. However, UnixWare can not handle
2887 that case. Therefore, we override the DT_RELASZ entry
2888 here to make it not include the JMPREL relocs. Since
2889 the linker script arranges for .rela.plt to follow all
2890 other relocation sections, we don't have to worry
2891 about changing the DT_RELA entry. */
2892 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2893 if (s != NULL)
2894 dyn.d_un.d_val -= s->size;
2895 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2896 break;
2897 }
2898 }
2899
2900 }
2901
2902 /* Fill in the first three entries in the global offset table. */
2903 if (sgot->size > 0)
2904 {
2905 if (sdyn == NULL)
2906 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
2907 else
2908 bfd_put_32 (output_bfd,
2909 sdyn->output_section->vma + sdyn->output_offset,
2910 sgot->contents);
2911 }
2912
2913 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
2914
2915 return TRUE;
2916 }
2917
2918 /* Given a .data.rel section and a .emreloc in-memory section, store
2919 relocation information into the .emreloc section which can be
2920 used at runtime to relocate the section. This is called by the
2921 linker when the --embedded-relocs switch is used. This is called
2922 after the add_symbols entry point has been called for all the
2923 objects, and before the final_link entry point is called. */
2924
2925 bfd_boolean
2926 bfd_cr16_elf32_create_embedded_relocs (bfd *abfd,
2927 struct bfd_link_info *info,
2928 asection *datasec,
2929 asection *relsec,
2930 char **errmsg)
2931 {
2932 Elf_Internal_Shdr *symtab_hdr;
2933 Elf_Internal_Sym *isymbuf = NULL;
2934 Elf_Internal_Rela *internal_relocs = NULL;
2935 Elf_Internal_Rela *irel, *irelend;
2936 bfd_byte *p;
2937 bfd_size_type amt;
2938
2939 BFD_ASSERT (! info->relocatable);
2940
2941 *errmsg = NULL;
2942
2943 if (datasec->reloc_count == 0)
2944 return TRUE;
2945
2946 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2947
2948 /* Get a copy of the native relocations. */
2949 internal_relocs = (_bfd_elf_link_read_relocs
2950 (abfd, datasec, NULL, NULL, info->keep_memory));
2951 if (internal_relocs == NULL)
2952 goto error_return;
2953
2954 amt = (bfd_size_type) datasec->reloc_count * 8;
2955 relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
2956 if (relsec->contents == NULL)
2957 goto error_return;
2958
2959 p = relsec->contents;
2960
2961 irelend = internal_relocs + datasec->reloc_count;
2962 for (irel = internal_relocs; irel < irelend; irel++, p += 8)
2963 {
2964 asection *targetsec;
2965
2966 /* We are going to write a four byte longword into the runtime
2967 reloc section. The longword will be the address in the data
2968 section which must be relocated. It is followed by the name
2969 of the target section NUL-padded or truncated to 8
2970 characters. */
2971
2972 /* We can only relocate absolute longword relocs at run time. */
2973 if (!((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a)
2974 || (ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32)))
2975 {
2976 *errmsg = _("unsupported reloc type");
2977 bfd_set_error (bfd_error_bad_value);
2978 goto error_return;
2979 }
2980
2981 /* Get the target section referred to by the reloc. */
2982 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
2983 {
2984 /* A local symbol. */
2985 Elf_Internal_Sym *isym;
2986
2987 /* Read this BFD's local symbols if we haven't done so already. */
2988 if (isymbuf == NULL)
2989 {
2990 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2991 if (isymbuf == NULL)
2992 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
2993 symtab_hdr->sh_info, 0,
2994 NULL, NULL, NULL);
2995 if (isymbuf == NULL)
2996 goto error_return;
2997 }
2998
2999 isym = isymbuf + ELF32_R_SYM (irel->r_info);
3000 targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3001 }
3002 else
3003 {
3004 unsigned long indx;
3005 struct elf_link_hash_entry *h;
3006
3007 /* An external symbol. */
3008 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3009 h = elf_sym_hashes (abfd)[indx];
3010 BFD_ASSERT (h != NULL);
3011 if (h->root.type == bfd_link_hash_defined
3012 || h->root.type == bfd_link_hash_defweak)
3013 targetsec = h->root.u.def.section;
3014 else
3015 targetsec = NULL;
3016 }
3017
3018 bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
3019 memset (p + 4, 0, 4);
3020 if ((ELF32_R_TYPE (irel->r_info) == (int) R_CR16_NUM32a)
3021 && (targetsec != NULL) )
3022 strncpy ((char *) p + 4, targetsec->output_section->name, 4);
3023 }
3024
3025 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
3026 free (isymbuf);
3027 if (internal_relocs != NULL
3028 && elf_section_data (datasec)->relocs != internal_relocs)
3029 free (internal_relocs);
3030 return TRUE;
3031
3032 error_return:
3033 if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
3034 free (isymbuf);
3035 if (internal_relocs != NULL
3036 && elf_section_data (datasec)->relocs != internal_relocs)
3037 free (internal_relocs);
3038 return FALSE;
3039 }
3040
3041
3042 /* Classify relocation types, such that combreloc can sort them
3043 properly. */
3044
3045 static enum elf_reloc_type_class
3046 _bfd_cr16_elf_reloc_type_class (const Elf_Internal_Rela *rela)
3047 {
3048 switch ((int) ELF32_R_TYPE (rela->r_info))
3049 {
3050 case R_CR16_GOT_REGREL20:
3051 case R_CR16_GOTC_REGREL20:
3052 return reloc_class_relative;
3053 default:
3054 return reloc_class_normal;
3055 }
3056 }
3057
3058 /* Definitions for setting CR16 target vector. */
3059 #define TARGET_LITTLE_SYM bfd_elf32_cr16_vec
3060 #define TARGET_LITTLE_NAME "elf32-cr16"
3061 #define ELF_ARCH bfd_arch_cr16
3062 #define ELF_MACHINE_CODE EM_CR16
3063 #define ELF_MACHINE_ALT1 EM_CR16_OLD
3064 #define ELF_MAXPAGESIZE 0x1
3065 #define elf_symbol_leading_char '_'
3066
3067 #define bfd_elf32_bfd_reloc_type_lookup elf_cr16_reloc_type_lookup
3068 #define bfd_elf32_bfd_reloc_name_lookup elf_cr16_reloc_name_lookup
3069 #define elf_info_to_howto elf_cr16_info_to_howto
3070 #define elf_info_to_howto_rel 0
3071 #define elf_backend_relocate_section elf32_cr16_relocate_section
3072 #define bfd_elf32_bfd_relax_section elf32_cr16_relax_section
3073 #define bfd_elf32_bfd_get_relocated_section_contents \
3074 elf32_cr16_get_relocated_section_contents
3075 #define elf_backend_gc_mark_hook elf32_cr16_gc_mark_hook
3076 #define elf_backend_gc_sweep_hook elf32_cr16_gc_sweep_hook
3077 #define elf_backend_can_gc_sections 1
3078 #define elf_backend_rela_normal 1
3079 #define elf_backend_check_relocs cr16_elf_check_relocs
3080 /* So we can set bits in e_flags. */
3081 #define elf_backend_final_write_processing \
3082 _bfd_cr16_elf_final_write_processing
3083 #define elf_backend_object_p _bfd_cr16_elf_object_p
3084
3085 #define bfd_elf32_bfd_merge_private_bfd_data \
3086 _bfd_cr16_elf_merge_private_bfd_data
3087
3088
3089 #define bfd_elf32_bfd_link_hash_table_create \
3090 elf32_cr16_link_hash_table_create
3091 #define bfd_elf32_bfd_link_hash_table_free \
3092 elf32_cr16_link_hash_table_free
3093
3094 #define elf_backend_create_dynamic_sections \
3095 _bfd_cr16_elf_create_dynamic_sections
3096 #define elf_backend_adjust_dynamic_symbol \
3097 _bfd_cr16_elf_adjust_dynamic_symbol
3098 #define elf_backend_size_dynamic_sections \
3099 _bfd_cr16_elf_size_dynamic_sections
3100 #define elf_backend_omit_section_dynsym \
3101 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
3102 #define elf_backend_finish_dynamic_symbol \
3103 _bfd_cr16_elf_finish_dynamic_symbol
3104 #define elf_backend_finish_dynamic_sections \
3105 _bfd_cr16_elf_finish_dynamic_sections
3106
3107 #define elf_backend_reloc_type_class _bfd_cr16_elf_reloc_type_class
3108
3109
3110 #define elf_backend_want_got_plt 1
3111 #define elf_backend_plt_readonly 1
3112 #define elf_backend_want_plt_sym 0
3113 #define elf_backend_got_header_size 12
3114
3115 #include "elf32-target.h"
GDB Binutils - Deliverables
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