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[thirdparty/binutils-gdb.git] / bfd / elf32-frv.c
1 /* FRV-specific support for 32-bit ELF.
2 Copyright 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20 #include "bfd.h"
21 #include "sysdep.h"
22 #include "libbfd.h"
23 #include "elf-bfd.h"
24 #include "elf/frv.h"
25 #include "elf/dwarf2.h"
26 #include "hashtab.h"
27
28 /* Forward declarations. */
29 static bfd_reloc_status_type elf32_frv_relocate_lo16
30 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
31 static bfd_reloc_status_type elf32_frv_relocate_hi16
32 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
33 static bfd_reloc_status_type elf32_frv_relocate_label24
34 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
35 static bfd_reloc_status_type elf32_frv_relocate_gprel12
36 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
37 bfd_byte *, bfd_vma));
38 static bfd_reloc_status_type elf32_frv_relocate_gprelu12
39 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
40 bfd_byte *, bfd_vma));
41 static bfd_reloc_status_type elf32_frv_relocate_gprello
42 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
43 bfd_byte *, bfd_vma));
44 static bfd_reloc_status_type elf32_frv_relocate_gprelhi
45 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
46 bfd_byte *, bfd_vma));
47 static reloc_howto_type *frv_reloc_type_lookup
48 PARAMS ((bfd *, bfd_reloc_code_real_type));
49 static void frv_info_to_howto_rela
50 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
51 static bfd_boolean elf32_frv_relocate_section
52 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
53 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
54 static bfd_boolean elf32_frv_add_symbol_hook
55 PARAMS (( bfd *, struct bfd_link_info *, Elf_Internal_Sym *,
56 const char **, flagword *, asection **, bfd_vma *));
57 static bfd_reloc_status_type frv_final_link_relocate
58 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
59 Elf_Internal_Rela *, bfd_vma));
60 static bfd_boolean elf32_frv_gc_sweep_hook
61 PARAMS ((bfd *, struct bfd_link_info *, asection *, const
62 Elf_Internal_Rela *));
63 static asection * elf32_frv_gc_mark_hook
64 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
65 struct elf_link_hash_entry *, Elf_Internal_Sym *));
66 static bfd_boolean elf32_frv_check_relocs
67 PARAMS ((bfd *, struct bfd_link_info *, asection *,
68 const Elf_Internal_Rela *));
69 static int elf32_frv_machine
70 PARAMS ((bfd *));
71 static bfd_boolean elf32_frv_object_p
72 PARAMS ((bfd *));
73 static bfd_boolean frv_elf_set_private_flags
74 PARAMS ((bfd *, flagword));
75 static bfd_boolean frv_elf_copy_private_bfd_data
76 PARAMS ((bfd *, bfd *));
77 static bfd_boolean frv_elf_merge_private_bfd_data
78 PARAMS ((bfd *, bfd *));
79 static bfd_boolean frv_elf_print_private_bfd_data
80 PARAMS ((bfd *, PTR));
81
82 static reloc_howto_type elf32_frv_howto_table [] =
83 {
84 /* This reloc does nothing. */
85 HOWTO (R_FRV_NONE, /* type */
86 0, /* rightshift */
87 2, /* size (0 = byte, 1 = short, 2 = long) */
88 32, /* bitsize */
89 FALSE, /* pc_relative */
90 0, /* bitpos */
91 complain_overflow_bitfield, /* complain_on_overflow */
92 bfd_elf_generic_reloc, /* special_function */
93 "R_FRV_NONE", /* name */
94 FALSE, /* partial_inplace */
95 0, /* src_mask */
96 0, /* dst_mask */
97 FALSE), /* pcrel_offset */
98
99 /* A 32 bit absolute relocation. */
100 HOWTO (R_FRV_32, /* type */
101 0, /* rightshift */
102 2, /* size (0 = byte, 1 = short, 2 = long) */
103 32, /* bitsize */
104 FALSE, /* pc_relative */
105 0, /* bitpos */
106 complain_overflow_bitfield, /* complain_on_overflow */
107 bfd_elf_generic_reloc, /* special_function */
108 "R_FRV_32", /* name */
109 FALSE, /* partial_inplace */
110 0xffffffff, /* src_mask */
111 0xffffffff, /* dst_mask */
112 FALSE), /* pcrel_offset */
113
114 /* A 16 bit pc-relative relocation. */
115 HOWTO (R_FRV_LABEL16, /* type */
116 2, /* rightshift */
117 2, /* size (0 = byte, 1 = short, 2 = long) */
118 16, /* bitsize */
119 TRUE, /* pc_relative */
120 0, /* bitpos */
121 complain_overflow_signed, /* complain_on_overflow */
122 bfd_elf_generic_reloc, /* special_function */
123 "R_FRV_LABEL16", /* name */
124 FALSE, /* partial_inplace */
125 0xffff, /* src_mask */
126 0xffff, /* dst_mask */
127 TRUE), /* pcrel_offset */
128
129 /* A 24-bit pc-relative relocation. */
130 HOWTO (R_FRV_LABEL24, /* type */
131 2, /* rightshift */
132 2, /* size (0 = byte, 1 = short, 2 = long) */
133 26, /* bitsize */
134 TRUE, /* pc_relative */
135 0, /* bitpos */
136 complain_overflow_bitfield, /* complain_on_overflow */
137 bfd_elf_generic_reloc, /* special_function */
138 "R_FRV_LABEL24", /* name */
139 FALSE, /* partial_inplace */
140 0x7e03ffff, /* src_mask */
141 0x7e03ffff, /* dst_mask */
142 TRUE), /* pcrel_offset */
143
144 HOWTO (R_FRV_LO16, /* type */
145 0, /* rightshift */
146 2, /* size (0 = byte, 1 = short, 2 = long) */
147 16, /* bitsize */
148 FALSE, /* pc_relative */
149 0, /* bitpos */
150 complain_overflow_dont, /* complain_on_overflow */
151 bfd_elf_generic_reloc, /* special_function */
152 "R_FRV_LO16", /* name */
153 FALSE, /* partial_inplace */
154 0xffff, /* src_mask */
155 0xffff, /* dst_mask */
156 FALSE), /* pcrel_offset */
157
158 HOWTO (R_FRV_HI16, /* type */
159 0, /* rightshift */
160 2, /* size (0 = byte, 1 = short, 2 = long) */
161 16, /* bitsize */
162 FALSE, /* pc_relative */
163 0, /* bitpos */
164 complain_overflow_dont, /* complain_on_overflow */
165 bfd_elf_generic_reloc, /* special_function */
166 "R_FRV_HI16", /* name */
167 FALSE, /* partial_inplace */
168 0xffff, /* src_mask */
169 0xffff, /* dst_mask */
170 FALSE), /* pcrel_offset */
171
172 HOWTO (R_FRV_GPREL12, /* type */
173 0, /* rightshift */
174 2, /* size (0 = byte, 1 = short, 2 = long) */
175 12, /* bitsize */
176 FALSE, /* pc_relative */
177 0, /* bitpos */
178 complain_overflow_dont, /* complain_on_overflow */
179 bfd_elf_generic_reloc, /* special_function */
180 "R_FRV_GPREL12", /* name */
181 FALSE, /* partial_inplace */
182 0xfff, /* src_mask */
183 0xfff, /* dst_mask */
184 FALSE), /* pcrel_offset */
185
186 HOWTO (R_FRV_GPRELU12, /* type */
187 0, /* rightshift */
188 2, /* size (0 = byte, 1 = short, 2 = long) */
189 12, /* bitsize */
190 FALSE, /* pc_relative */
191 0, /* bitpos */
192 complain_overflow_dont, /* complain_on_overflow */
193 bfd_elf_generic_reloc, /* special_function */
194 "R_FRV_GPRELU12", /* name */
195 FALSE, /* partial_inplace */
196 0xfff, /* src_mask */
197 0x3f03f, /* dst_mask */
198 FALSE), /* pcrel_offset */
199
200 HOWTO (R_FRV_GPREL32, /* type */
201 0, /* rightshift */
202 2, /* size (0 = byte, 1 = short, 2 = long) */
203 32, /* bitsize */
204 FALSE, /* pc_relative */
205 0, /* bitpos */
206 complain_overflow_dont, /* complain_on_overflow */
207 bfd_elf_generic_reloc, /* special_function */
208 "R_FRV_GPREL32", /* name */
209 FALSE, /* partial_inplace */
210 0xffffffff, /* src_mask */
211 0xffffffff, /* dst_mask */
212 FALSE), /* pcrel_offset */
213
214 HOWTO (R_FRV_GPRELHI, /* type */
215 0, /* rightshift */
216 2, /* size (0 = byte, 1 = short, 2 = long) */
217 16, /* bitsize */
218 FALSE, /* pc_relative */
219 0, /* bitpos */
220 complain_overflow_dont, /* complain_on_overflow */
221 bfd_elf_generic_reloc, /* special_function */
222 "R_FRV_GPRELHI", /* name */
223 FALSE, /* partial_inplace */
224 0xffff, /* src_mask */
225 0xffff, /* dst_mask */
226 FALSE), /* pcrel_offset */
227
228 HOWTO (R_FRV_GPRELLO, /* type */
229 0, /* rightshift */
230 2, /* size (0 = byte, 1 = short, 2 = long) */
231 16, /* bitsize */
232 FALSE, /* pc_relative */
233 0, /* bitpos */
234 complain_overflow_dont, /* complain_on_overflow */
235 bfd_elf_generic_reloc, /* special_function */
236 "R_FRV_GPRELLO", /* name */
237 FALSE, /* partial_inplace */
238 0xffff, /* src_mask */
239 0xffff, /* dst_mask */
240 FALSE), /* pcrel_offset */
241
242 /* A 12-bit signed operand with the GOT offset for the address of
243 the symbol. */
244 HOWTO (R_FRV_GOT12, /* type */
245 0, /* rightshift */
246 2, /* size (0 = byte, 1 = short, 2 = long) */
247 12, /* bitsize */
248 FALSE, /* pc_relative */
249 0, /* bitpos */
250 complain_overflow_signed, /* complain_on_overflow */
251 bfd_elf_generic_reloc, /* special_function */
252 "R_FRV_GOT12", /* name */
253 FALSE, /* partial_inplace */
254 0xfff, /* src_mask */
255 0xfff, /* dst_mask */
256 FALSE), /* pcrel_offset */
257
258 /* The upper 16 bits of the GOT offset for the address of the
259 symbol. */
260 HOWTO (R_FRV_GOTHI, /* type */
261 0, /* rightshift */
262 2, /* size (0 = byte, 1 = short, 2 = long) */
263 16, /* bitsize */
264 FALSE, /* pc_relative */
265 0, /* bitpos */
266 complain_overflow_dont, /* complain_on_overflow */
267 bfd_elf_generic_reloc, /* special_function */
268 "R_FRV_GOTHI", /* name */
269 FALSE, /* partial_inplace */
270 0xffff, /* src_mask */
271 0xffff, /* dst_mask */
272 FALSE), /* pcrel_offset */
273
274 /* The lower 16 bits of the GOT offset for the address of the
275 symbol. */
276 HOWTO (R_FRV_GOTLO, /* type */
277 0, /* rightshift */
278 2, /* size (0 = byte, 1 = short, 2 = long) */
279 16, /* bitsize */
280 FALSE, /* pc_relative */
281 0, /* bitpos */
282 complain_overflow_dont, /* complain_on_overflow */
283 bfd_elf_generic_reloc, /* special_function */
284 "R_FRV_GOTLO", /* name */
285 FALSE, /* partial_inplace */
286 0xffff, /* src_mask */
287 0xffff, /* dst_mask */
288 FALSE), /* pcrel_offset */
289
290 /* The 32-bit address of the canonical descriptor of a function. */
291 HOWTO (R_FRV_FUNCDESC, /* type */
292 0, /* rightshift */
293 2, /* size (0 = byte, 1 = short, 2 = long) */
294 32, /* bitsize */
295 FALSE, /* pc_relative */
296 0, /* bitpos */
297 complain_overflow_bitfield, /* complain_on_overflow */
298 bfd_elf_generic_reloc, /* special_function */
299 "R_FRV_FUNCDESC", /* name */
300 FALSE, /* partial_inplace */
301 0xffffffff, /* src_mask */
302 0xffffffff, /* dst_mask */
303 FALSE), /* pcrel_offset */
304
305 /* A 12-bit signed operand with the GOT offset for the address of
306 canonical descriptor of a function. */
307 HOWTO (R_FRV_FUNCDESC_GOT12, /* type */
308 0, /* rightshift */
309 2, /* size (0 = byte, 1 = short, 2 = long) */
310 12, /* bitsize */
311 FALSE, /* pc_relative */
312 0, /* bitpos */
313 complain_overflow_signed, /* complain_on_overflow */
314 bfd_elf_generic_reloc, /* special_function */
315 "R_FRV_FUNCDESC_GOT12", /* name */
316 FALSE, /* partial_inplace */
317 0xfff, /* src_mask */
318 0xfff, /* dst_mask */
319 FALSE), /* pcrel_offset */
320
321 /* The upper 16 bits of the GOT offset for the address of the
322 canonical descriptor of a function. */
323 HOWTO (R_FRV_FUNCDESC_GOTHI, /* type */
324 0, /* rightshift */
325 2, /* size (0 = byte, 1 = short, 2 = long) */
326 16, /* bitsize */
327 FALSE, /* pc_relative */
328 0, /* bitpos */
329 complain_overflow_dont, /* complain_on_overflow */
330 bfd_elf_generic_reloc, /* special_function */
331 "R_FRV_FUNCDESC_GOTHI", /* name */
332 FALSE, /* partial_inplace */
333 0xffff, /* src_mask */
334 0xffff, /* dst_mask */
335 FALSE), /* pcrel_offset */
336
337 /* The lower 16 bits of the GOT offset for the address of the
338 canonical descriptor of a function. */
339 HOWTO (R_FRV_FUNCDESC_GOTLO, /* type */
340 0, /* rightshift */
341 2, /* size (0 = byte, 1 = short, 2 = long) */
342 16, /* bitsize */
343 FALSE, /* pc_relative */
344 0, /* bitpos */
345 complain_overflow_dont, /* complain_on_overflow */
346 bfd_elf_generic_reloc, /* special_function */
347 "R_FRV_FUNCDESC_GOTLO", /* name */
348 FALSE, /* partial_inplace */
349 0xffff, /* src_mask */
350 0xffff, /* dst_mask */
351 FALSE), /* pcrel_offset */
352
353 /* The 64-bit descriptor of a function. */
354 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
355 0, /* rightshift */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
357 64, /* bitsize */
358 FALSE, /* pc_relative */
359 0, /* bitpos */
360 complain_overflow_bitfield, /* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_FRV_FUNCDESC_VALUE", /* name */
363 FALSE, /* partial_inplace */
364 0xffffffff, /* src_mask */
365 0xffffffff, /* dst_mask */
366 FALSE), /* pcrel_offset */
367
368 /* A 12-bit signed operand with the GOT offset for the address of
369 canonical descriptor of a function. */
370 HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
371 0, /* rightshift */
372 2, /* size (0 = byte, 1 = short, 2 = long) */
373 12, /* bitsize */
374 FALSE, /* pc_relative */
375 0, /* bitpos */
376 complain_overflow_signed, /* complain_on_overflow */
377 bfd_elf_generic_reloc, /* special_function */
378 "R_FRV_FUNCDESC_GOTOFF12", /* name */
379 FALSE, /* partial_inplace */
380 0xfff, /* src_mask */
381 0xfff, /* dst_mask */
382 FALSE), /* pcrel_offset */
383
384 /* The upper 16 bits of the GOT offset for the address of the
385 canonical descriptor of a function. */
386 HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
387 0, /* rightshift */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
389 16, /* bitsize */
390 FALSE, /* pc_relative */
391 0, /* bitpos */
392 complain_overflow_dont, /* complain_on_overflow */
393 bfd_elf_generic_reloc, /* special_function */
394 "R_FRV_FUNCDESC_GOTOFFHI", /* name */
395 FALSE, /* partial_inplace */
396 0xffff, /* src_mask */
397 0xffff, /* dst_mask */
398 FALSE), /* pcrel_offset */
399
400 /* The lower 16 bits of the GOT offset for the address of the
401 canonical descriptor of a function. */
402 HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
403 0, /* rightshift */
404 2, /* size (0 = byte, 1 = short, 2 = long) */
405 16, /* bitsize */
406 FALSE, /* pc_relative */
407 0, /* bitpos */
408 complain_overflow_dont, /* complain_on_overflow */
409 bfd_elf_generic_reloc, /* special_function */
410 "R_FRV_FUNCDESC_GOTOFFLO", /* name */
411 FALSE, /* partial_inplace */
412 0xffff, /* src_mask */
413 0xffff, /* dst_mask */
414 FALSE), /* pcrel_offset */
415
416 /* A 12-bit signed operand with the GOT offset for the address of
417 the symbol. */
418 HOWTO (R_FRV_GOTOFF12, /* type */
419 0, /* rightshift */
420 2, /* size (0 = byte, 1 = short, 2 = long) */
421 12, /* bitsize */
422 FALSE, /* pc_relative */
423 0, /* bitpos */
424 complain_overflow_signed, /* complain_on_overflow */
425 bfd_elf_generic_reloc, /* special_function */
426 "R_FRV_GOTOFF12", /* name */
427 FALSE, /* partial_inplace */
428 0xfff, /* src_mask */
429 0xfff, /* dst_mask */
430 FALSE), /* pcrel_offset */
431
432 /* The upper 16 bits of the GOT offset for the address of the
433 symbol. */
434 HOWTO (R_FRV_GOTOFFHI, /* type */
435 0, /* rightshift */
436 2, /* size (0 = byte, 1 = short, 2 = long) */
437 16, /* bitsize */
438 FALSE, /* pc_relative */
439 0, /* bitpos */
440 complain_overflow_dont, /* complain_on_overflow */
441 bfd_elf_generic_reloc, /* special_function */
442 "R_FRV_GOTOFFHI", /* name */
443 FALSE, /* partial_inplace */
444 0xffff, /* src_mask */
445 0xffff, /* dst_mask */
446 FALSE), /* pcrel_offset */
447
448 /* The lower 16 bits of the GOT offset for the address of the
449 symbol. */
450 HOWTO (R_FRV_GOTOFFLO, /* type */
451 0, /* rightshift */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
453 16, /* bitsize */
454 FALSE, /* pc_relative */
455 0, /* bitpos */
456 complain_overflow_dont, /* complain_on_overflow */
457 bfd_elf_generic_reloc, /* special_function */
458 "R_FRV_GOTOFFLO", /* name */
459 FALSE, /* partial_inplace */
460 0xffff, /* src_mask */
461 0xffff, /* dst_mask */
462 FALSE), /* pcrel_offset */
463
464 /* A 24-bit pc-relative relocation referencing the TLS PLT entry for
465 a thread-local symbol. If the symbol number is 0, it refers to
466 the module. */
467 HOWTO (R_FRV_GETTLSOFF, /* type */
468 2, /* rightshift */
469 2, /* size (0 = byte, 1 = short, 2 = long) */
470 26, /* bitsize */
471 TRUE, /* pc_relative */
472 0, /* bitpos */
473 complain_overflow_bitfield, /* complain_on_overflow */
474 bfd_elf_generic_reloc, /* special_function */
475 "R_FRV_GETTLSOFF", /* name */
476 FALSE, /* partial_inplace */
477 0x7e03ffff, /* src_mask */
478 0x7e03ffff, /* dst_mask */
479 TRUE), /* pcrel_offset */
480
481 /* A 64-bit TLS descriptor for a symbol. This relocation is only
482 valid as a REL, dynamic relocation. */
483 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
484 0, /* rightshift */
485 2, /* size (0 = byte, 1 = short, 2 = long) */
486 64, /* bitsize */
487 FALSE, /* pc_relative */
488 0, /* bitpos */
489 complain_overflow_bitfield, /* complain_on_overflow */
490 bfd_elf_generic_reloc, /* special_function */
491 "R_FRV_TLSDESC_VALUE", /* name */
492 FALSE, /* partial_inplace */
493 0xffffffff, /* src_mask */
494 0xffffffff, /* dst_mask */
495 FALSE), /* pcrel_offset */
496
497 /* A 12-bit signed operand with the GOT offset for the TLS
498 descriptor of the symbol. */
499 HOWTO (R_FRV_GOTTLSDESC12, /* type */
500 0, /* rightshift */
501 2, /* size (0 = byte, 1 = short, 2 = long) */
502 12, /* bitsize */
503 FALSE, /* pc_relative */
504 0, /* bitpos */
505 complain_overflow_signed, /* complain_on_overflow */
506 bfd_elf_generic_reloc, /* special_function */
507 "R_FRV_GOTTLSDESC12", /* name */
508 FALSE, /* partial_inplace */
509 0xfff, /* src_mask */
510 0xfff, /* dst_mask */
511 FALSE), /* pcrel_offset */
512
513 /* The upper 16 bits of the GOT offset for the TLS descriptor of the
514 symbol. */
515 HOWTO (R_FRV_GOTTLSDESCHI, /* type */
516 0, /* rightshift */
517 2, /* size (0 = byte, 1 = short, 2 = long) */
518 16, /* bitsize */
519 FALSE, /* pc_relative */
520 0, /* bitpos */
521 complain_overflow_dont, /* complain_on_overflow */
522 bfd_elf_generic_reloc, /* special_function */
523 "R_FRV_GOTTLSDESCHI", /* name */
524 FALSE, /* partial_inplace */
525 0xffff, /* src_mask */
526 0xffff, /* dst_mask */
527 FALSE), /* pcrel_offset */
528
529 /* The lower 16 bits of the GOT offset for the TLS descriptor of the
530 symbol. */
531 HOWTO (R_FRV_GOTTLSDESCLO, /* type */
532 0, /* rightshift */
533 2, /* size (0 = byte, 1 = short, 2 = long) */
534 16, /* bitsize */
535 FALSE, /* pc_relative */
536 0, /* bitpos */
537 complain_overflow_dont, /* complain_on_overflow */
538 bfd_elf_generic_reloc, /* special_function */
539 "R_FRV_GOTTLSDESCLO", /* name */
540 FALSE, /* partial_inplace */
541 0xffff, /* src_mask */
542 0xffff, /* dst_mask */
543 FALSE), /* pcrel_offset */
544
545 /* A 12-bit signed operand with the offset from the module base
546 address to the thread-local symbol address. */
547 HOWTO (R_FRV_TLSMOFF12, /* type */
548 0, /* rightshift */
549 2, /* size (0 = byte, 1 = short, 2 = long) */
550 12, /* bitsize */
551 FALSE, /* pc_relative */
552 0, /* bitpos */
553 complain_overflow_signed, /* complain_on_overflow */
554 bfd_elf_generic_reloc, /* special_function */
555 "R_FRV_TLSMOFF12", /* name */
556 FALSE, /* partial_inplace */
557 0xfff, /* src_mask */
558 0xfff, /* dst_mask */
559 FALSE), /* pcrel_offset */
560
561 /* The upper 16 bits of the offset from the module base address to
562 the thread-local symbol address. */
563 HOWTO (R_FRV_TLSMOFFHI, /* type */
564 0, /* rightshift */
565 2, /* size (0 = byte, 1 = short, 2 = long) */
566 16, /* bitsize */
567 FALSE, /* pc_relative */
568 0, /* bitpos */
569 complain_overflow_dont, /* complain_on_overflow */
570 bfd_elf_generic_reloc, /* special_function */
571 "R_FRV_TLSMOFFHI", /* name */
572 FALSE, /* partial_inplace */
573 0xffff, /* src_mask */
574 0xffff, /* dst_mask */
575 FALSE), /* pcrel_offset */
576
577 /* The lower 16 bits of the offset from the module base address to
578 the thread-local symbol address. */
579 HOWTO (R_FRV_TLSMOFFLO, /* type */
580 0, /* rightshift */
581 2, /* size (0 = byte, 1 = short, 2 = long) */
582 16, /* bitsize */
583 FALSE, /* pc_relative */
584 0, /* bitpos */
585 complain_overflow_dont, /* complain_on_overflow */
586 bfd_elf_generic_reloc, /* special_function */
587 "R_FRV_TLSMOFFLO", /* name */
588 FALSE, /* partial_inplace */
589 0xffff, /* src_mask */
590 0xffff, /* dst_mask */
591 FALSE), /* pcrel_offset */
592
593 /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
594 for a symbol. */
595 HOWTO (R_FRV_GOTTLSOFF12, /* type */
596 0, /* rightshift */
597 2, /* size (0 = byte, 1 = short, 2 = long) */
598 12, /* bitsize */
599 FALSE, /* pc_relative */
600 0, /* bitpos */
601 complain_overflow_signed, /* complain_on_overflow */
602 bfd_elf_generic_reloc, /* special_function */
603 "R_FRV_GOTTLSOFF12", /* name */
604 FALSE, /* partial_inplace */
605 0xfff, /* src_mask */
606 0xfff, /* dst_mask */
607 FALSE), /* pcrel_offset */
608
609 /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
610 symbol. */
611 HOWTO (R_FRV_GOTTLSOFFHI, /* type */
612 0, /* rightshift */
613 2, /* size (0 = byte, 1 = short, 2 = long) */
614 16, /* bitsize */
615 FALSE, /* pc_relative */
616 0, /* bitpos */
617 complain_overflow_dont, /* complain_on_overflow */
618 bfd_elf_generic_reloc, /* special_function */
619 "R_FRV_GOTTLSOFFHI", /* name */
620 FALSE, /* partial_inplace */
621 0xffff, /* src_mask */
622 0xffff, /* dst_mask */
623 FALSE), /* pcrel_offset */
624
625 /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
626 symbol. */
627 HOWTO (R_FRV_GOTTLSOFFLO, /* type */
628 0, /* rightshift */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
630 16, /* bitsize */
631 FALSE, /* pc_relative */
632 0, /* bitpos */
633 complain_overflow_dont, /* complain_on_overflow */
634 bfd_elf_generic_reloc, /* special_function */
635 "R_FRV_GOTTLSOFFLO", /* name */
636 FALSE, /* partial_inplace */
637 0xffff, /* src_mask */
638 0xffff, /* dst_mask */
639 FALSE), /* pcrel_offset */
640
641 /* The 32-bit offset from the thread pointer (not the module base
642 address) to a thread-local symbol. */
643 HOWTO (R_FRV_TLSOFF, /* type */
644 0, /* rightshift */
645 2, /* size (0 = byte, 1 = short, 2 = long) */
646 32, /* bitsize */
647 FALSE, /* pc_relative */
648 0, /* bitpos */
649 complain_overflow_dont, /* complain_on_overflow */
650 bfd_elf_generic_reloc, /* special_function */
651 "R_FRV_TLSOFF", /* name */
652 FALSE, /* partial_inplace */
653 0xffffffff, /* src_mask */
654 0xffffffff, /* dst_mask */
655 FALSE), /* pcrel_offset */
656
657 /* An annotation for linker relaxation, that denotes the
658 symbol+addend whose TLS descriptor is referenced by the sum of
659 the two input registers of an ldd instruction. */
660 HOWTO (R_FRV_TLSDESC_RELAX, /* type */
661 0, /* rightshift */
662 2, /* size (0 = byte, 1 = short, 2 = long) */
663 0, /* bitsize */
664 FALSE, /* pc_relative */
665 0, /* bitpos */
666 complain_overflow_dont, /* complain_on_overflow */
667 bfd_elf_generic_reloc, /* special_function */
668 "R_FRV_TLSDESC_RELAX", /* name */
669 FALSE, /* partial_inplace */
670 0, /* src_mask */
671 0, /* dst_mask */
672 FALSE), /* pcrel_offset */
673
674 /* An annotation for linker relaxation, that denotes the
675 symbol+addend whose TLS resolver entry point is given by the sum
676 of the two register operands of an calll instruction. */
677 HOWTO (R_FRV_GETTLSOFF_RELAX, /* type */
678 0, /* rightshift */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
680 0, /* bitsize */
681 FALSE, /* pc_relative */
682 0, /* bitpos */
683 complain_overflow_dont, /* complain_on_overflow */
684 bfd_elf_generic_reloc, /* special_function */
685 "R_FRV_GETTLSOFF_RELAX", /* name */
686 FALSE, /* partial_inplace */
687 0, /* src_mask */
688 0, /* dst_mask */
689 FALSE), /* pcrel_offset */
690
691 /* An annotation for linker relaxation, that denotes the
692 symbol+addend whose TLS offset GOT entry is given by the sum of
693 the two input registers of an ld instruction. */
694 HOWTO (R_FRV_TLSOFF_RELAX, /* type */
695 0, /* rightshift */
696 2, /* size (0 = byte, 1 = short, 2 = long) */
697 0, /* bitsize */
698 FALSE, /* pc_relative */
699 0, /* bitpos */
700 complain_overflow_bitfield, /* complain_on_overflow */
701 bfd_elf_generic_reloc, /* special_function */
702 "R_FRV_TLSOFF_RELAX", /* name */
703 FALSE, /* partial_inplace */
704 0, /* src_mask */
705 0, /* dst_mask */
706 FALSE), /* pcrel_offset */
707
708 /* A 32-bit offset from the module base address to
709 the thread-local symbol address. */
710 HOWTO (R_FRV_TLSMOFF, /* type */
711 0, /* rightshift */
712 2, /* size (0 = byte, 1 = short, 2 = long) */
713 32, /* bitsize */
714 FALSE, /* pc_relative */
715 0, /* bitpos */
716 complain_overflow_dont, /* complain_on_overflow */
717 bfd_elf_generic_reloc, /* special_function */
718 "R_FRV_TLSMOFF", /* name */
719 FALSE, /* partial_inplace */
720 0xffffffff, /* src_mask */
721 0xffffffff, /* dst_mask */
722 FALSE), /* pcrel_offset */
723 };
724
725 /* GNU extension to record C++ vtable hierarchy. */
726 static reloc_howto_type elf32_frv_vtinherit_howto =
727 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
728 0, /* rightshift */
729 2, /* size (0 = byte, 1 = short, 2 = long) */
730 0, /* bitsize */
731 FALSE, /* pc_relative */
732 0, /* bitpos */
733 complain_overflow_dont, /* complain_on_overflow */
734 NULL, /* special_function */
735 "R_FRV_GNU_VTINHERIT", /* name */
736 FALSE, /* partial_inplace */
737 0, /* src_mask */
738 0, /* dst_mask */
739 FALSE); /* pcrel_offset */
740
741 /* GNU extension to record C++ vtable member usage. */
742 static reloc_howto_type elf32_frv_vtentry_howto =
743 HOWTO (R_FRV_GNU_VTENTRY, /* type */
744 0, /* rightshift */
745 2, /* size (0 = byte, 1 = short, 2 = long) */
746 0, /* bitsize */
747 FALSE, /* pc_relative */
748 0, /* bitpos */
749 complain_overflow_dont, /* complain_on_overflow */
750 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
751 "R_FRV_GNU_VTENTRY", /* name */
752 FALSE, /* partial_inplace */
753 0, /* src_mask */
754 0, /* dst_mask */
755 FALSE); /* pcrel_offset */
756
757 /* The following 3 relocations are REL. The only difference to the
758 entries in the table above are that partial_inplace is TRUE. */
759 static reloc_howto_type elf32_frv_rel_32_howto =
760 HOWTO (R_FRV_32, /* type */
761 0, /* rightshift */
762 2, /* size (0 = byte, 1 = short, 2 = long) */
763 32, /* bitsize */
764 FALSE, /* pc_relative */
765 0, /* bitpos */
766 complain_overflow_bitfield, /* complain_on_overflow */
767 bfd_elf_generic_reloc, /* special_function */
768 "R_FRV_32", /* name */
769 TRUE, /* partial_inplace */
770 0xffffffff, /* src_mask */
771 0xffffffff, /* dst_mask */
772 FALSE); /* pcrel_offset */
773
774 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
775 HOWTO (R_FRV_FUNCDESC, /* type */
776 0, /* rightshift */
777 2, /* size (0 = byte, 1 = short, 2 = long) */
778 32, /* bitsize */
779 FALSE, /* pc_relative */
780 0, /* bitpos */
781 complain_overflow_bitfield, /* complain_on_overflow */
782 bfd_elf_generic_reloc, /* special_function */
783 "R_FRV_FUNCDESC", /* name */
784 TRUE, /* partial_inplace */
785 0xffffffff, /* src_mask */
786 0xffffffff, /* dst_mask */
787 FALSE); /* pcrel_offset */
788
789 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
790 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
791 0, /* rightshift */
792 2, /* size (0 = byte, 1 = short, 2 = long) */
793 64, /* bitsize */
794 FALSE, /* pc_relative */
795 0, /* bitpos */
796 complain_overflow_bitfield, /* complain_on_overflow */
797 bfd_elf_generic_reloc, /* special_function */
798 "R_FRV_FUNCDESC_VALUE", /* name */
799 TRUE, /* partial_inplace */
800 0xffffffff, /* src_mask */
801 0xffffffff, /* dst_mask */
802 FALSE); /* pcrel_offset */
803
804 static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
805 /* A 64-bit TLS descriptor for a symbol. The first word resolves to
806 an entry point, and the second resolves to a special argument.
807 If the symbol turns out to be in static TLS, the entry point is a
808 return instruction, and the special argument is the TLS offset
809 for the symbol. If it's in dynamic TLS, the entry point is a TLS
810 offset resolver, and the special argument is a pointer to a data
811 structure allocated by the dynamic loader, containing the GOT
812 address for the offset resolver, the module id, the offset within
813 the module, and anything else the TLS offset resolver might need
814 to determine the TLS offset for the symbol in the running
815 thread. */
816 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
817 0, /* rightshift */
818 2, /* size (0 = byte, 1 = short, 2 = long) */
819 64, /* bitsize */
820 FALSE, /* pc_relative */
821 0, /* bitpos */
822 complain_overflow_bitfield, /* complain_on_overflow */
823 bfd_elf_generic_reloc, /* special_function */
824 "R_FRV_TLSDESC_VALUE", /* name */
825 TRUE, /* partial_inplace */
826 0xffffffff, /* src_mask */
827 0xffffffff, /* dst_mask */
828 FALSE); /* pcrel_offset */
829
830 static reloc_howto_type elf32_frv_rel_tlsoff_howto =
831 /* The 32-bit offset from the thread pointer (not the module base
832 address) to a thread-local symbol. */
833 HOWTO (R_FRV_TLSOFF, /* type */
834 0, /* rightshift */
835 2, /* size (0 = byte, 1 = short, 2 = long) */
836 32, /* bitsize */
837 FALSE, /* pc_relative */
838 0, /* bitpos */
839 complain_overflow_bitfield, /* complain_on_overflow */
840 bfd_elf_generic_reloc, /* special_function */
841 "R_FRV_TLSOFF", /* name */
842 TRUE, /* partial_inplace */
843 0xffffffff, /* src_mask */
844 0xffffffff, /* dst_mask */
845 FALSE); /* pcrel_offset */
846
847
848 \f
849 extern const bfd_target bfd_elf32_frvfdpic_vec;
850 #define IS_FDPIC(bfd) ((bfd)->xvec == &bfd_elf32_frvfdpic_vec)
851
852 /* An extension of the elf hash table data structure, containing some
853 additional FRV-specific data. */
854 struct frvfdpic_elf_link_hash_table
855 {
856 struct elf_link_hash_table elf;
857
858 /* A pointer to the .got section. */
859 asection *sgot;
860 /* A pointer to the .rel.got section. */
861 asection *sgotrel;
862 /* A pointer to the .rofixup section. */
863 asection *sgotfixup;
864 /* A pointer to the .plt section. */
865 asection *splt;
866 /* A pointer to the .rel.plt section. */
867 asection *spltrel;
868 /* GOT base offset. */
869 bfd_vma got0;
870 /* Location of the first non-lazy PLT entry, i.e., the number of
871 bytes taken by lazy PLT entries. If locally-bound TLS
872 descriptors require a ret instruction, it will be placed at this
873 offset. */
874 bfd_vma plt0;
875 /* A hash table holding information about which symbols were
876 referenced with which PIC-related relocations. */
877 struct htab *relocs_info;
878 /* Summary reloc information collected by
879 _frvfdpic_count_got_plt_entries. */
880 struct _frvfdpic_dynamic_got_info *g;
881 };
882
883 /* Get the FRV ELF linker hash table from a link_info structure. */
884
885 #define frvfdpic_hash_table(info) \
886 ((struct frvfdpic_elf_link_hash_table *) ((info)->hash))
887
888 #define frvfdpic_got_section(info) \
889 (frvfdpic_hash_table (info)->sgot)
890 #define frvfdpic_gotrel_section(info) \
891 (frvfdpic_hash_table (info)->sgotrel)
892 #define frvfdpic_gotfixup_section(info) \
893 (frvfdpic_hash_table (info)->sgotfixup)
894 #define frvfdpic_plt_section(info) \
895 (frvfdpic_hash_table (info)->splt)
896 #define frvfdpic_pltrel_section(info) \
897 (frvfdpic_hash_table (info)->spltrel)
898 #define frvfdpic_relocs_info(info) \
899 (frvfdpic_hash_table (info)->relocs_info)
900 #define frvfdpic_got_initial_offset(info) \
901 (frvfdpic_hash_table (info)->got0)
902 #define frvfdpic_plt_initial_offset(info) \
903 (frvfdpic_hash_table (info)->plt0)
904 #define frvfdpic_dynamic_got_plt_info(info) \
905 (frvfdpic_hash_table (info)->g)
906
907 /* Currently it's the same, but if some day we have a reason to change
908 it, we'd better be using a different macro.
909
910 FIXME: if there's any TLS PLT entry that uses local-exec or
911 initial-exec models, we could use the ret at the end of any of them
912 instead of adding one more. */
913 #define frvfdpic_plt_tls_ret_offset(info) \
914 (frvfdpic_plt_initial_offset (info))
915
916 /* The name of the dynamic interpreter. This is put in the .interp
917 section. */
918
919 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
920
921 #define DEFAULT_STACK_SIZE 0x20000
922
923 /* This structure is used to collect the number of entries present in
924 each addressable range of the got. */
925 struct _frvfdpic_dynamic_got_info
926 {
927 /* Several bits of information about the current link. */
928 struct bfd_link_info *info;
929 /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
930 ranges. */
931 bfd_vma got12, gotlos, gothilo;
932 /* Total GOT size needed for function descriptor entries within the 12-,
933 16- or 32-bit ranges. */
934 bfd_vma fd12, fdlos, fdhilo;
935 /* Total GOT size needed by function descriptor entries referenced
936 in PLT entries, that would be profitable to place in offsets
937 close to the PIC register. */
938 bfd_vma fdplt;
939 /* Total PLT size needed by lazy PLT entries. */
940 bfd_vma lzplt;
941 /* Total GOT size needed for TLS descriptor entries within the 12-,
942 16- or 32-bit ranges. */
943 bfd_vma tlsd12, tlsdlos, tlsdhilo;
944 /* Total GOT size needed by TLS descriptors referenced in PLT
945 entries, that would be profitable to place in offers close to the
946 PIC register. */
947 bfd_vma tlsdplt;
948 /* Total PLT size needed by TLS lazy PLT entries. */
949 bfd_vma tlslzplt;
950 /* Number of relocations carried over from input object files. */
951 unsigned long relocs;
952 /* Number of fixups introduced by relocations in input object files. */
953 unsigned long fixups;
954 /* The number of fixups that reference the ret instruction added to
955 the PLT for locally-resolved TLS descriptors. */
956 unsigned long tls_ret_refs;
957 };
958
959 /* This structure is used to assign offsets to got entries, function
960 descriptors, plt entries and lazy plt entries. */
961
962 struct _frvfdpic_dynamic_got_plt_info
963 {
964 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
965 struct _frvfdpic_dynamic_got_info g;
966
967 /* For each addressable range, we record a MAX (positive) and MIN
968 (negative) value. CUR is used to assign got entries, and it's
969 incremented from an initial positive value to MAX, then from MIN
970 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
971 assign function descriptors, and it's decreased from an initial
972 non-positive value to MIN, then from MAX down to CUR (unless CUR
973 wraps around first). All of MIN, MAX, CUR and FDCUR always point
974 to even words. ODD, if non-zero, indicates an odd word to be
975 used for the next got entry, otherwise CUR is used and
976 incremented by a pair of words, wrapping around when it reaches
977 MAX. FDCUR is decremented (and wrapped) before the next function
978 descriptor is chosen. FDPLT indicates the number of remaining
979 slots that can be used for function descriptors used only by PLT
980 entries.
981
982 TMAX, TMIN and TCUR are used to assign TLS descriptors. TCUR
983 starts as MAX, and grows up to TMAX, then wraps around to TMIN
984 and grows up to MIN. TLSDPLT indicates the number of remaining
985 slots that can be used for TLS descriptors used only by TLS PLT
986 entries. */
987 struct _frvfdpic_dynamic_got_alloc_data
988 {
989 bfd_signed_vma max, cur, odd, fdcur, min;
990 bfd_signed_vma tmax, tcur, tmin;
991 bfd_vma fdplt, tlsdplt;
992 } got12, gotlos, gothilo;
993 };
994
995 /* Create an FRV ELF linker hash table. */
996
997 static struct bfd_link_hash_table *
998 frvfdpic_elf_link_hash_table_create (bfd *abfd)
999 {
1000 struct frvfdpic_elf_link_hash_table *ret;
1001 bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
1002
1003 ret = bfd_zalloc (abfd, amt);
1004 if (ret == NULL)
1005 return NULL;
1006
1007 if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd,
1008 _bfd_elf_link_hash_newfunc))
1009 {
1010 free (ret);
1011 return NULL;
1012 }
1013
1014 return &ret->elf.root;
1015 }
1016
1017 /* Decide whether a reference to a symbol can be resolved locally or
1018 not. If the symbol is protected, we want the local address, but
1019 its function descriptor must be assigned by the dynamic linker. */
1020 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
1021 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
1022 || ! elf_hash_table (INFO)->dynamic_sections_created)
1023 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
1024 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
1025
1026 /* This structure collects information on what kind of GOT, PLT or
1027 function descriptors are required by relocations that reference a
1028 certain symbol. */
1029 struct frvfdpic_relocs_info
1030 {
1031 /* The index of the symbol, as stored in the relocation r_info, if
1032 we have a local symbol; -1 otherwise. */
1033 long symndx;
1034 union
1035 {
1036 /* The input bfd in which the symbol is defined, if it's a local
1037 symbol. */
1038 bfd *abfd;
1039 /* If symndx == -1, the hash table entry corresponding to a global
1040 symbol (even if it turns out to bind locally, in which case it
1041 should ideally be replaced with section's symndx + addend). */
1042 struct elf_link_hash_entry *h;
1043 } d;
1044 /* The addend of the relocation that references the symbol. */
1045 bfd_vma addend;
1046
1047 /* The fields above are used to identify an entry. The fields below
1048 contain information on how an entry is used and, later on, which
1049 locations it was assigned. */
1050 /* The following 3 fields record whether the symbol+addend above was
1051 ever referenced with a GOT relocation. The 12 suffix indicates a
1052 GOT12 relocation; los is used for GOTLO relocations that are not
1053 matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
1054 pairs. */
1055 unsigned got12:1;
1056 unsigned gotlos:1;
1057 unsigned gothilo:1;
1058 /* Whether a FUNCDESC relocation references symbol+addend. */
1059 unsigned fd:1;
1060 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1061 unsigned fdgot12:1;
1062 unsigned fdgotlos:1;
1063 unsigned fdgothilo:1;
1064 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1065 unsigned fdgoff12:1;
1066 unsigned fdgofflos:1;
1067 unsigned fdgoffhilo:1;
1068 /* Whether a GETTLSOFF relocation references symbol+addend. */
1069 unsigned tlsplt:1;
1070 /* FIXME: we should probably add tlspltdesc, tlspltoff and
1071 tlspltimm, to tell what kind of TLS PLT entry we're generating.
1072 We might instead just pre-compute flags telling whether the
1073 object is suitable for local exec, initial exec or general
1074 dynamic addressing, and use that all over the place. We could
1075 also try to do a better job of merging TLSOFF and TLSDESC entries
1076 in main executables, but perhaps we can get rid of TLSDESC
1077 entirely in them instead. */
1078 /* Whether a GOTTLSDESC relocation references symbol+addend. */
1079 unsigned tlsdesc12:1;
1080 unsigned tlsdesclos:1;
1081 unsigned tlsdeschilo:1;
1082 /* Whether a GOTTLSOFF relocation references symbol+addend. */
1083 unsigned tlsoff12:1;
1084 unsigned tlsofflos:1;
1085 unsigned tlsoffhilo:1;
1086 /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1087 GOTOFFHI relocations. The addend doesn't really matter, since we
1088 envision that this will only be used to check whether the symbol
1089 is mapped to the same segment as the got. */
1090 unsigned gotoff:1;
1091 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1092 unsigned call:1;
1093 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1094 relocation. */
1095 unsigned sym:1;
1096 /* Whether we need a PLT entry for a symbol. Should be implied by
1097 something like:
1098 (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
1099 unsigned plt:1;
1100 /* Whether a function descriptor should be created in this link unit
1101 for symbol+addend. Should be implied by something like:
1102 (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1103 || ((fd || fdgot12 || fdgotlos || fdgothilo)
1104 && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
1105 unsigned privfd:1;
1106 /* Whether a lazy PLT entry is needed for this symbol+addend.
1107 Should be implied by something like:
1108 (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1109 && ! (info->flags & DF_BIND_NOW)) */
1110 unsigned lazyplt:1;
1111 /* Whether we've already emitted GOT relocations and PLT entries as
1112 needed for this symbol. */
1113 unsigned done:1;
1114
1115 /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1116 R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1117 symbol+addend. */
1118 unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1119
1120 /* The number of .rofixups entries and dynamic relocations allocated
1121 for this symbol, minus any that might have already been used. */
1122 unsigned fixups, dynrelocs;
1123
1124 /* The offsets of the GOT entries assigned to symbol+addend, to the
1125 function descriptor's address, and to a function descriptor,
1126 respectively. Should be zero if unassigned. The offsets are
1127 counted from the value that will be assigned to the PIC register,
1128 not from the beginning of the .got section. */
1129 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1130 /* The offsets of the PLT entries assigned to symbol+addend,
1131 non-lazy and lazy, respectively. If unassigned, should be
1132 (bfd_vma)-1. */
1133 bfd_vma plt_entry, lzplt_entry;
1134 /* The offsets of the GOT entries for TLS offset and TLS descriptor. */
1135 bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1136 /* The offset of the TLS offset PLT entry. */
1137 bfd_vma tlsplt_entry;
1138 };
1139
1140 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
1141 static hashval_t
1142 frvfdpic_relocs_info_hash (const void *entry_)
1143 {
1144 const struct frvfdpic_relocs_info *entry = entry_;
1145
1146 return (entry->symndx == -1
1147 ? (long)entry->d.h->root.root.hash
1148 : entry->symndx + entry->d.abfd->id * 257) + entry->addend;
1149 }
1150
1151 /* Test whether the key fields of two frvfdpic_relocs_info entries are
1152 identical. */
1153 static int
1154 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1155 {
1156 const struct frvfdpic_relocs_info *e1 = entry1;
1157 const struct frvfdpic_relocs_info *e2 = entry2;
1158
1159 return e1->symndx == e2->symndx && e1->addend == e2->addend
1160 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1161 }
1162
1163 /* Find or create an entry in a hash table HT that matches the key
1164 fields of the given ENTRY. If it's not found, memory for a new
1165 entry is allocated in ABFD's obstack. */
1166 static struct frvfdpic_relocs_info *
1167 frvfdpic_relocs_info_find (struct htab *ht,
1168 bfd *abfd,
1169 const struct frvfdpic_relocs_info *entry,
1170 enum insert_option insert)
1171 {
1172 struct frvfdpic_relocs_info **loc =
1173 (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1174
1175 if (! loc)
1176 return NULL;
1177
1178 if (*loc)
1179 return *loc;
1180
1181 *loc = bfd_zalloc (abfd, sizeof (**loc));
1182
1183 if (! *loc)
1184 return *loc;
1185
1186 (*loc)->symndx = entry->symndx;
1187 (*loc)->d = entry->d;
1188 (*loc)->addend = entry->addend;
1189 (*loc)->plt_entry = (bfd_vma)-1;
1190 (*loc)->lzplt_entry = (bfd_vma)-1;
1191 (*loc)->tlsplt_entry = (bfd_vma)-1;
1192
1193 return *loc;
1194 }
1195
1196 /* Obtain the address of the entry in HT associated with H's symbol +
1197 addend, creating a new entry if none existed. ABFD is only used
1198 for memory allocation purposes. */
1199 inline static struct frvfdpic_relocs_info *
1200 frvfdpic_relocs_info_for_global (struct htab *ht,
1201 bfd *abfd,
1202 struct elf_link_hash_entry *h,
1203 bfd_vma addend,
1204 enum insert_option insert)
1205 {
1206 struct frvfdpic_relocs_info entry;
1207
1208 entry.symndx = -1;
1209 entry.d.h = h;
1210 entry.addend = addend;
1211
1212 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1213 }
1214
1215 /* Obtain the address of the entry in HT associated with the SYMNDXth
1216 local symbol of the input bfd ABFD, plus the addend, creating a new
1217 entry if none existed. */
1218 inline static struct frvfdpic_relocs_info *
1219 frvfdpic_relocs_info_for_local (struct htab *ht,
1220 bfd *abfd,
1221 long symndx,
1222 bfd_vma addend,
1223 enum insert_option insert)
1224 {
1225 struct frvfdpic_relocs_info entry;
1226
1227 entry.symndx = symndx;
1228 entry.d.abfd = abfd;
1229 entry.addend = addend;
1230
1231 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1232 }
1233
1234 /* Merge fields set by check_relocs() of two entries that end up being
1235 mapped to the same (presumably global) symbol. */
1236
1237 inline static void
1238 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1239 struct frvfdpic_relocs_info const *e1)
1240 {
1241 e2->got12 |= e1->got12;
1242 e2->gotlos |= e1->gotlos;
1243 e2->gothilo |= e1->gothilo;
1244 e2->fd |= e1->fd;
1245 e2->fdgot12 |= e1->fdgot12;
1246 e2->fdgotlos |= e1->fdgotlos;
1247 e2->fdgothilo |= e1->fdgothilo;
1248 e2->fdgoff12 |= e1->fdgoff12;
1249 e2->fdgofflos |= e1->fdgofflos;
1250 e2->fdgoffhilo |= e1->fdgoffhilo;
1251 e2->tlsplt |= e1->tlsplt;
1252 e2->tlsdesc12 |= e1->tlsdesc12;
1253 e2->tlsdesclos |= e1->tlsdesclos;
1254 e2->tlsdeschilo |= e1->tlsdeschilo;
1255 e2->tlsoff12 |= e1->tlsoff12;
1256 e2->tlsofflos |= e1->tlsofflos;
1257 e2->tlsoffhilo |= e1->tlsoffhilo;
1258 e2->gotoff |= e1->gotoff;
1259 e2->call |= e1->call;
1260 e2->sym |= e1->sym;
1261 }
1262
1263 /* Every block of 65535 lazy PLT entries shares a single call to the
1264 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1265 32767, counting from 0). All other lazy PLT entries branch to it
1266 in a single instruction. */
1267
1268 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1269 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1270
1271 /* Add a dynamic relocation to the SRELOC section. */
1272
1273 inline static bfd_vma
1274 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1275 int reloc_type, long dynindx, bfd_vma addend,
1276 struct frvfdpic_relocs_info *entry)
1277 {
1278 Elf_Internal_Rela outrel;
1279 bfd_vma reloc_offset;
1280
1281 outrel.r_offset = offset;
1282 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1283 outrel.r_addend = addend;
1284
1285 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1286 BFD_ASSERT (reloc_offset < sreloc->size);
1287 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1288 sreloc->contents + reloc_offset);
1289 sreloc->reloc_count++;
1290
1291 /* If the entry's index is zero, this relocation was probably to a
1292 linkonce section that got discarded. We reserved a dynamic
1293 relocation, but it was for another entry than the one we got at
1294 the time of emitting the relocation. Unfortunately there's no
1295 simple way for us to catch this situation, since the relocation
1296 is cleared right before calling relocate_section, at which point
1297 we no longer know what the relocation used to point to. */
1298 if (entry->symndx)
1299 {
1300 BFD_ASSERT (entry->dynrelocs > 0);
1301 entry->dynrelocs--;
1302 }
1303
1304 return reloc_offset;
1305 }
1306
1307 /* Add a fixup to the ROFIXUP section. */
1308
1309 static bfd_vma
1310 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1311 struct frvfdpic_relocs_info *entry)
1312 {
1313 bfd_vma fixup_offset;
1314
1315 if (rofixup->flags & SEC_EXCLUDE)
1316 return -1;
1317
1318 fixup_offset = rofixup->reloc_count * 4;
1319 if (rofixup->contents)
1320 {
1321 BFD_ASSERT (fixup_offset < rofixup->size);
1322 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1323 }
1324 rofixup->reloc_count++;
1325
1326 if (entry && entry->symndx)
1327 {
1328 /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1329 above. */
1330 BFD_ASSERT (entry->fixups > 0);
1331 entry->fixups--;
1332 }
1333
1334 return fixup_offset;
1335 }
1336
1337 /* Find the segment number in which OSEC, and output section, is
1338 located. */
1339
1340 static unsigned
1341 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1342 {
1343 struct elf_segment_map *m;
1344 Elf_Internal_Phdr *p;
1345
1346 /* Find the segment that contains the output_section. */
1347 for (m = elf_tdata (output_bfd)->segment_map,
1348 p = elf_tdata (output_bfd)->phdr;
1349 m != NULL;
1350 m = m->next, p++)
1351 {
1352 int i;
1353
1354 for (i = m->count - 1; i >= 0; i--)
1355 if (m->sections[i] == osec)
1356 break;
1357
1358 if (i >= 0)
1359 break;
1360 }
1361
1362 return p - elf_tdata (output_bfd)->phdr;
1363 }
1364
1365 inline static bfd_boolean
1366 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1367 {
1368 unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1369
1370 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1371 }
1372
1373 #define FRVFDPIC_TLS_BIAS (2048 - 16)
1374
1375 /* Return the base VMA address which should be subtracted from real addresses
1376 when resolving TLSMOFF relocation.
1377 This is PT_TLS segment p_vaddr, plus the 2048-16 bias. */
1378
1379 static bfd_vma
1380 tls_biased_base (struct bfd_link_info *info)
1381 {
1382 /* If tls_sec is NULL, we should have signalled an error already. */
1383 if (elf_hash_table (info)->tls_sec == NULL)
1384 return FRVFDPIC_TLS_BIAS;
1385 return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1386 }
1387
1388 /* Generate relocations for GOT entries, function descriptors, and
1389 code for PLT and lazy PLT entries. */
1390
1391 inline static bfd_boolean
1392 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1393 bfd *output_bfd,
1394 struct bfd_link_info *info,
1395 asection *sec,
1396 Elf_Internal_Sym *sym,
1397 bfd_vma addend)
1398
1399 {
1400 bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1401 int dynindx = -1;
1402
1403 if (entry->done)
1404 return TRUE;
1405 entry->done = 1;
1406
1407 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1408 || entry->tlsoff_entry || entry->tlsdesc_entry)
1409 {
1410 /* If the symbol is dynamic, consider it for dynamic
1411 relocations, otherwise decay to section + offset. */
1412 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1413 dynindx = entry->d.h->dynindx;
1414 else
1415 {
1416 if (sec->output_section
1417 && ! bfd_is_abs_section (sec->output_section)
1418 && ! bfd_is_und_section (sec->output_section))
1419 dynindx = elf_section_data (sec->output_section)->dynindx;
1420 else
1421 dynindx = 0;
1422 }
1423 }
1424
1425 /* Generate relocation for GOT entry pointing to the symbol. */
1426 if (entry->got_entry)
1427 {
1428 int idx = dynindx;
1429 bfd_vma ad = addend;
1430
1431 /* If the symbol is dynamic but binds locally, use
1432 section+offset. */
1433 if (sec && (entry->symndx != -1
1434 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1435 {
1436 if (entry->symndx == -1)
1437 ad += entry->d.h->root.u.def.value;
1438 else
1439 ad += sym->st_value;
1440 ad += sec->output_offset;
1441 if (sec->output_section && elf_section_data (sec->output_section))
1442 idx = elf_section_data (sec->output_section)->dynindx;
1443 else
1444 idx = 0;
1445 }
1446
1447 /* If we're linking an executable at a fixed address, we can
1448 omit the dynamic relocation as long as the symbol is local to
1449 this module. */
1450 if (info->executable && !info->pie
1451 && (entry->symndx != -1
1452 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1453 {
1454 if (sec)
1455 ad += sec->output_section->vma;
1456 if (entry->symndx != -1
1457 || entry->d.h->root.type != bfd_link_hash_undefweak)
1458 _frvfdpic_add_rofixup (output_bfd,
1459 frvfdpic_gotfixup_section (info),
1460 frvfdpic_got_section (info)->output_section
1461 ->vma
1462 + frvfdpic_got_section (info)->output_offset
1463 + frvfdpic_got_initial_offset (info)
1464 + entry->got_entry, entry);
1465 }
1466 else
1467 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1468 _bfd_elf_section_offset
1469 (output_bfd, info,
1470 frvfdpic_got_section (info),
1471 frvfdpic_got_initial_offset (info)
1472 + entry->got_entry)
1473 + frvfdpic_got_section (info)
1474 ->output_section->vma
1475 + frvfdpic_got_section (info)->output_offset,
1476 R_FRV_32, idx, ad, entry);
1477
1478 bfd_put_32 (output_bfd, ad,
1479 frvfdpic_got_section (info)->contents
1480 + frvfdpic_got_initial_offset (info)
1481 + entry->got_entry);
1482 }
1483
1484 /* Generate relocation for GOT entry pointing to a canonical
1485 function descriptor. */
1486 if (entry->fdgot_entry)
1487 {
1488 int reloc, idx;
1489 bfd_vma ad = 0;
1490
1491 if (! (entry->symndx == -1
1492 && entry->d.h->root.type == bfd_link_hash_undefweak
1493 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1494 {
1495 /* If the symbol is dynamic and there may be dynamic symbol
1496 resolution because we are, or are linked with, a shared
1497 library, emit a FUNCDESC relocation such that the dynamic
1498 linker will allocate the function descriptor. If the
1499 symbol needs a non-local function descriptor but binds
1500 locally (e.g., its visibility is protected, emit a
1501 dynamic relocation decayed to section+offset. */
1502 if (entry->symndx == -1
1503 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1504 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1505 && !(info->executable && !info->pie))
1506 {
1507 reloc = R_FRV_FUNCDESC;
1508 idx = elf_section_data (entry->d.h->root.u.def.section
1509 ->output_section)->dynindx;
1510 ad = entry->d.h->root.u.def.section->output_offset
1511 + entry->d.h->root.u.def.value;
1512 }
1513 else if (entry->symndx == -1
1514 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1515 {
1516 reloc = R_FRV_FUNCDESC;
1517 idx = dynindx;
1518 ad = addend;
1519 if (ad)
1520 {
1521 (*info->callbacks->reloc_dangerous)
1522 (info, _("relocation requires zero addend"),
1523 elf_hash_table (info)->dynobj,
1524 frvfdpic_got_section (info),
1525 entry->fdgot_entry);
1526 return FALSE;
1527 }
1528 }
1529 else
1530 {
1531 /* Otherwise, we know we have a private function descriptor,
1532 so reference it directly. */
1533 if (elf_hash_table (info)->dynamic_sections_created)
1534 BFD_ASSERT (entry->privfd);
1535 reloc = R_FRV_32;
1536 idx = elf_section_data (frvfdpic_got_section (info)
1537 ->output_section)->dynindx;
1538 ad = frvfdpic_got_section (info)->output_offset
1539 + frvfdpic_got_initial_offset (info) + entry->fd_entry;
1540 }
1541
1542 /* If there is room for dynamic symbol resolution, emit the
1543 dynamic relocation. However, if we're linking an
1544 executable at a fixed location, we won't have emitted a
1545 dynamic symbol entry for the got section, so idx will be
1546 zero, which means we can and should compute the address
1547 of the private descriptor ourselves. */
1548 if (info->executable && !info->pie
1549 && (entry->symndx != -1
1550 || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1551 {
1552 ad += frvfdpic_got_section (info)->output_section->vma;
1553 _frvfdpic_add_rofixup (output_bfd,
1554 frvfdpic_gotfixup_section (info),
1555 frvfdpic_got_section (info)
1556 ->output_section->vma
1557 + frvfdpic_got_section (info)
1558 ->output_offset
1559 + frvfdpic_got_initial_offset (info)
1560 + entry->fdgot_entry, entry);
1561 }
1562 else
1563 _frvfdpic_add_dyn_reloc (output_bfd,
1564 frvfdpic_gotrel_section (info),
1565 _bfd_elf_section_offset
1566 (output_bfd, info,
1567 frvfdpic_got_section (info),
1568 frvfdpic_got_initial_offset (info)
1569 + entry->fdgot_entry)
1570 + frvfdpic_got_section (info)
1571 ->output_section->vma
1572 + frvfdpic_got_section (info)
1573 ->output_offset,
1574 reloc, idx, ad, entry);
1575 }
1576
1577 bfd_put_32 (output_bfd, ad,
1578 frvfdpic_got_section (info)->contents
1579 + frvfdpic_got_initial_offset (info)
1580 + entry->fdgot_entry);
1581 }
1582
1583 /* Generate relocation to fill in a private function descriptor in
1584 the GOT. */
1585 if (entry->fd_entry)
1586 {
1587 int idx = dynindx;
1588 bfd_vma ad = addend;
1589 bfd_vma ofst;
1590 long lowword, highword;
1591
1592 /* If the symbol is dynamic but binds locally, use
1593 section+offset. */
1594 if (sec && (entry->symndx != -1
1595 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1596 {
1597 if (entry->symndx == -1)
1598 ad += entry->d.h->root.u.def.value;
1599 else
1600 ad += sym->st_value;
1601 ad += sec->output_offset;
1602 if (sec->output_section && elf_section_data (sec->output_section))
1603 idx = elf_section_data (sec->output_section)->dynindx;
1604 else
1605 idx = 0;
1606 }
1607
1608 /* If we're linking an executable at a fixed address, we can
1609 omit the dynamic relocation as long as the symbol is local to
1610 this module. */
1611 if (info->executable && !info->pie
1612 && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1613 {
1614 if (sec)
1615 ad += sec->output_section->vma;
1616 ofst = 0;
1617 if (entry->symndx != -1
1618 || entry->d.h->root.type != bfd_link_hash_undefweak)
1619 {
1620 _frvfdpic_add_rofixup (output_bfd,
1621 frvfdpic_gotfixup_section (info),
1622 frvfdpic_got_section (info)
1623 ->output_section->vma
1624 + frvfdpic_got_section (info)
1625 ->output_offset
1626 + frvfdpic_got_initial_offset (info)
1627 + entry->fd_entry, entry);
1628 _frvfdpic_add_rofixup (output_bfd,
1629 frvfdpic_gotfixup_section (info),
1630 frvfdpic_got_section (info)
1631 ->output_section->vma
1632 + frvfdpic_got_section (info)
1633 ->output_offset
1634 + frvfdpic_got_initial_offset (info)
1635 + entry->fd_entry + 4, entry);
1636 }
1637 }
1638 else
1639 {
1640 ofst =
1641 _frvfdpic_add_dyn_reloc (output_bfd,
1642 entry->lazyplt
1643 ? frvfdpic_pltrel_section (info)
1644 : frvfdpic_gotrel_section (info),
1645 _bfd_elf_section_offset
1646 (output_bfd, info,
1647 frvfdpic_got_section (info),
1648 frvfdpic_got_initial_offset (info)
1649 + entry->fd_entry)
1650 + frvfdpic_got_section (info)
1651 ->output_section->vma
1652 + frvfdpic_got_section (info)
1653 ->output_offset,
1654 R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1655 }
1656
1657 /* If we've omitted the dynamic relocation, just emit the fixed
1658 addresses of the symbol and of the local GOT base offset. */
1659 if (info->executable && !info->pie && sec && sec->output_section)
1660 {
1661 lowword = ad;
1662 highword = frvfdpic_got_section (info)->output_section->vma
1663 + frvfdpic_got_section (info)->output_offset
1664 + frvfdpic_got_initial_offset (info);
1665 }
1666 else if (entry->lazyplt)
1667 {
1668 if (ad)
1669 {
1670 (*info->callbacks->reloc_dangerous)
1671 (info, _("relocation requires zero addend"),
1672 elf_hash_table (info)->dynobj,
1673 frvfdpic_got_section (info),
1674 entry->fd_entry);
1675 return FALSE;
1676 }
1677
1678 fd_lazy_rel_offset = ofst;
1679
1680 /* A function descriptor used for lazy or local resolving is
1681 initialized such that its high word contains the output
1682 section index in which the PLT entries are located, and
1683 the low word contains the address of the lazy PLT entry
1684 entry point, that must be within the memory region
1685 assigned to that section. */
1686 lowword = entry->lzplt_entry + 4
1687 + frvfdpic_plt_section (info)->output_offset
1688 + frvfdpic_plt_section (info)->output_section->vma;
1689 highword = _frvfdpic_osec_to_segment
1690 (output_bfd, frvfdpic_plt_section (info)->output_section);
1691 }
1692 else
1693 {
1694 /* A function descriptor for a local function gets the index
1695 of the section. For a non-local function, it's
1696 disregarded. */
1697 lowword = ad;
1698 if (entry->symndx == -1 && entry->d.h->dynindx != -1
1699 && entry->d.h->dynindx == idx)
1700 highword = 0;
1701 else
1702 highword = _frvfdpic_osec_to_segment
1703 (output_bfd, sec->output_section);
1704 }
1705
1706 bfd_put_32 (output_bfd, lowword,
1707 frvfdpic_got_section (info)->contents
1708 + frvfdpic_got_initial_offset (info)
1709 + entry->fd_entry);
1710 bfd_put_32 (output_bfd, highword,
1711 frvfdpic_got_section (info)->contents
1712 + frvfdpic_got_initial_offset (info)
1713 + entry->fd_entry + 4);
1714 }
1715
1716 /* Generate code for the PLT entry. */
1717 if (entry->plt_entry != (bfd_vma) -1)
1718 {
1719 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1720 + entry->plt_entry;
1721
1722 BFD_ASSERT (entry->fd_entry);
1723
1724 /* Figure out what kind of PLT entry we need, depending on the
1725 location of the function descriptor within the GOT. */
1726 if (entry->fd_entry >= -(1 << (12 - 1))
1727 && entry->fd_entry < (1 << (12 - 1)))
1728 {
1729 /* lddi @(gr15, fd_entry), gr14 */
1730 bfd_put_32 (output_bfd,
1731 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1732 plt_code);
1733 plt_code += 4;
1734 }
1735 else
1736 {
1737 if (entry->fd_entry >= -(1 << (16 - 1))
1738 && entry->fd_entry < (1 << (16 - 1)))
1739 {
1740 /* setlos lo(fd_entry), gr14 */
1741 bfd_put_32 (output_bfd,
1742 0x9cfc0000
1743 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1744 plt_code);
1745 plt_code += 4;
1746 }
1747 else
1748 {
1749 /* sethi.p hi(fd_entry), gr14
1750 setlo lo(fd_entry), gr14 */
1751 bfd_put_32 (output_bfd,
1752 0x1cf80000
1753 | ((entry->fd_entry >> 16)
1754 & (((bfd_vma)1 << 16) - 1)),
1755 plt_code);
1756 plt_code += 4;
1757 bfd_put_32 (output_bfd,
1758 0x9cf40000
1759 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1760 plt_code);
1761 plt_code += 4;
1762 }
1763 /* ldd @(gr14,gr15),gr14 */
1764 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1765 plt_code += 4;
1766 }
1767 /* jmpl @(gr14,gr0) */
1768 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1769 }
1770
1771 /* Generate code for the lazy PLT entry. */
1772 if (entry->lzplt_entry != (bfd_vma) -1)
1773 {
1774 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1775 + entry->lzplt_entry;
1776 bfd_vma resolverStub_addr;
1777
1778 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1779 lzplt_code += 4;
1780
1781 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1782 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1783 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1784 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1785
1786 if (entry->lzplt_entry == resolverStub_addr)
1787 {
1788 /* This is a lazy PLT entry that includes a resolver call. */
1789 /* ldd @(gr15,gr0), gr4
1790 jmpl @(gr4,gr0) */
1791 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1792 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1793 }
1794 else
1795 {
1796 /* bra resolverStub */
1797 bfd_put_32 (output_bfd,
1798 0xc01a0000
1799 | (((resolverStub_addr - entry->lzplt_entry)
1800 / 4) & (((bfd_vma)1 << 16) - 1)),
1801 lzplt_code);
1802 }
1803 }
1804
1805 /* Generate relocation for GOT entry holding the TLS offset. */
1806 if (entry->tlsoff_entry)
1807 {
1808 int idx = dynindx;
1809 bfd_vma ad = addend;
1810
1811 if (entry->symndx != -1
1812 || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1813 {
1814 /* If the symbol is dynamic but binds locally, use
1815 section+offset. */
1816 if (sec)
1817 {
1818 if (entry->symndx == -1)
1819 ad += entry->d.h->root.u.def.value;
1820 else
1821 ad += sym->st_value;
1822 ad += sec->output_offset;
1823 if (sec->output_section
1824 && elf_section_data (sec->output_section))
1825 idx = elf_section_data (sec->output_section)->dynindx;
1826 else
1827 idx = 0;
1828 }
1829 }
1830
1831 /* *ABS*+addend is special for TLS relocations, use only the
1832 addend. */
1833 if (info->executable
1834 && idx == 0
1835 && (bfd_is_abs_section (sec)
1836 || bfd_is_und_section (sec)))
1837 ;
1838 /* If we're linking an executable, we can entirely omit the
1839 dynamic relocation if the symbol is local to this module. */
1840 else if (info->executable
1841 && (entry->symndx != -1
1842 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1843 {
1844 if (sec)
1845 ad += sec->output_section->vma - tls_biased_base (info);
1846 }
1847 else
1848 {
1849 if (idx == 0
1850 && (bfd_is_abs_section (sec)
1851 || bfd_is_und_section (sec)))
1852 {
1853 if (! elf_hash_table (info)->tls_sec)
1854 {
1855 (*info->callbacks->undefined_symbol)
1856 (info, "TLS section", elf_hash_table (info)->dynobj,
1857 frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1858 return FALSE;
1859 }
1860 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1861 ad += FRVFDPIC_TLS_BIAS;
1862 }
1863 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1864 _bfd_elf_section_offset
1865 (output_bfd, info,
1866 frvfdpic_got_section (info),
1867 frvfdpic_got_initial_offset (info)
1868 + entry->tlsoff_entry)
1869 + frvfdpic_got_section (info)
1870 ->output_section->vma
1871 + frvfdpic_got_section (info)
1872 ->output_offset,
1873 R_FRV_TLSOFF, idx, ad, entry);
1874 }
1875
1876 bfd_put_32 (output_bfd, ad,
1877 frvfdpic_got_section (info)->contents
1878 + frvfdpic_got_initial_offset (info)
1879 + entry->tlsoff_entry);
1880 }
1881
1882 if (entry->tlsdesc_entry)
1883 {
1884 int idx = dynindx;
1885 bfd_vma ad = addend;
1886
1887 /* If the symbol is dynamic but binds locally, use
1888 section+offset. */
1889 if (sec && (entry->symndx != -1
1890 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1891 {
1892 if (entry->symndx == -1)
1893 ad += entry->d.h->root.u.def.value;
1894 else
1895 ad += sym->st_value;
1896 ad += sec->output_offset;
1897 if (sec->output_section && elf_section_data (sec->output_section))
1898 idx = elf_section_data (sec->output_section)->dynindx;
1899 else
1900 idx = 0;
1901 }
1902
1903 /* If we didn't set up a TLS offset entry, but we're linking an
1904 executable and the symbol binds locally, we can use the
1905 module offset in the TLS descriptor in relaxations. */
1906 if (info->executable && ! entry->tlsoff_entry)
1907 entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1908
1909 if (info->executable && !info->pie
1910 && ((idx == 0
1911 && (bfd_is_abs_section (sec)
1912 || bfd_is_und_section (sec)))
1913 || entry->symndx != -1
1914 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1915 {
1916 /* *ABS*+addend is special for TLS relocations, use only the
1917 addend for the TLS offset, and take the module id as
1918 0. */
1919 if (idx == 0
1920 && (bfd_is_abs_section (sec)
1921 || bfd_is_und_section (sec)))
1922 ;
1923 /* For other TLS symbols that bind locally, add the section
1924 TLS offset to the addend. */
1925 else if (sec)
1926 ad += sec->output_section->vma - tls_biased_base (info);
1927
1928 bfd_put_32 (output_bfd,
1929 frvfdpic_plt_section (info)->output_section->vma
1930 + frvfdpic_plt_section (info)->output_offset
1931 + frvfdpic_plt_tls_ret_offset (info),
1932 frvfdpic_got_section (info)->contents
1933 + frvfdpic_got_initial_offset (info)
1934 + entry->tlsdesc_entry);
1935
1936 _frvfdpic_add_rofixup (output_bfd,
1937 frvfdpic_gotfixup_section (info),
1938 frvfdpic_got_section (info)
1939 ->output_section->vma
1940 + frvfdpic_got_section (info)
1941 ->output_offset
1942 + frvfdpic_got_initial_offset (info)
1943 + entry->tlsdesc_entry, entry);
1944
1945 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1946
1947 /* We've used one of the reserved fixups, so discount it so
1948 that we can check at the end that we've used them
1949 all. */
1950 frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1951
1952 /* While at that, make sure the ret instruction makes to the
1953 right location in the PLT. We could do it only when we
1954 got to 0, but since the check at the end will only print
1955 a warning, make sure we have the ret in place in case the
1956 warning is missed. */
1957 bfd_put_32 (output_bfd, 0xc03a4000,
1958 frvfdpic_plt_section (info)->contents
1959 + frvfdpic_plt_tls_ret_offset (info));
1960 }
1961 else
1962 {
1963 if (idx == 0
1964 && (bfd_is_abs_section (sec)
1965 || bfd_is_und_section (sec)))
1966 {
1967 if (! elf_hash_table (info)->tls_sec)
1968 {
1969 (*info->callbacks->undefined_symbol)
1970 (info, "TLS section", elf_hash_table (info)->dynobj,
1971 frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1972 return FALSE;
1973 }
1974 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1975 ad += FRVFDPIC_TLS_BIAS;
1976 }
1977
1978 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1979 _bfd_elf_section_offset
1980 (output_bfd, info,
1981 frvfdpic_got_section (info),
1982 frvfdpic_got_initial_offset (info)
1983 + entry->tlsdesc_entry)
1984 + frvfdpic_got_section (info)
1985 ->output_section->vma
1986 + frvfdpic_got_section (info)
1987 ->output_offset,
1988 R_FRV_TLSDESC_VALUE, idx, ad, entry);
1989
1990 bfd_put_32 (output_bfd, 0,
1991 frvfdpic_got_section (info)->contents
1992 + frvfdpic_got_initial_offset (info)
1993 + entry->tlsdesc_entry);
1994 }
1995
1996 bfd_put_32 (output_bfd, ad,
1997 frvfdpic_got_section (info)->contents
1998 + frvfdpic_got_initial_offset (info)
1999 + entry->tlsdesc_entry + 4);
2000 }
2001
2002 /* Generate code for the get-TLS-offset PLT entry. */
2003 if (entry->tlsplt_entry != (bfd_vma) -1)
2004 {
2005 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
2006 + entry->tlsplt_entry;
2007
2008 if (info->executable
2009 && (entry->symndx != -1
2010 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
2011 {
2012 int idx = dynindx;
2013 bfd_vma ad = addend;
2014
2015 /* sec may be NULL when referencing an undefweak symbol
2016 while linking a static executable. */
2017 if (!sec)
2018 {
2019 BFD_ASSERT (entry->symndx == -1
2020 && entry->d.h->root.type == bfd_link_hash_undefweak);
2021 }
2022 else
2023 {
2024 if (entry->symndx == -1)
2025 ad += entry->d.h->root.u.def.value;
2026 else
2027 ad += sym->st_value;
2028 ad += sec->output_offset;
2029 if (sec->output_section
2030 && elf_section_data (sec->output_section))
2031 idx = elf_section_data (sec->output_section)->dynindx;
2032 else
2033 idx = 0;
2034 }
2035
2036 /* *ABS*+addend is special for TLS relocations, use only the
2037 addend for the TLS offset, and take the module id as
2038 0. */
2039 if (idx == 0
2040 && (bfd_is_abs_section (sec)
2041 || bfd_is_und_section (sec)))
2042 ;
2043 /* For other TLS symbols that bind locally, add the section
2044 TLS offset to the addend. */
2045 else if (sec)
2046 ad += sec->output_section->vma - tls_biased_base (info);
2047
2048 if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
2049 && (bfd_signed_vma)ad < (1 << (16 - 1)))
2050 {
2051 /* setlos lo(ad), gr9 */
2052 bfd_put_32 (output_bfd,
2053 0x92fc0000
2054 | (ad
2055 & (((bfd_vma)1 << 16) - 1)),
2056 plt_code);
2057 plt_code += 4;
2058 }
2059 else
2060 {
2061 /* sethi.p hi(ad), gr9
2062 setlo lo(ad), gr9 */
2063 bfd_put_32 (output_bfd,
2064 0x12f80000
2065 | ((ad >> 16)
2066 & (((bfd_vma)1 << 16) - 1)),
2067 plt_code);
2068 plt_code += 4;
2069 bfd_put_32 (output_bfd,
2070 0x92f40000
2071 | (ad
2072 & (((bfd_vma)1 << 16) - 1)),
2073 plt_code);
2074 plt_code += 4;
2075 }
2076 /* ret */
2077 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2078 }
2079 else if (entry->tlsoff_entry)
2080 {
2081 /* Figure out what kind of PLT entry we need, depending on the
2082 location of the TLS descriptor within the GOT. */
2083 if (entry->tlsoff_entry >= -(1 << (12 - 1))
2084 && entry->tlsoff_entry < (1 << (12 - 1)))
2085 {
2086 /* ldi @(gr15, tlsoff_entry), gr9 */
2087 bfd_put_32 (output_bfd,
2088 0x92c8f000 | (entry->tlsoff_entry
2089 & ((1 << 12) - 1)),
2090 plt_code);
2091 plt_code += 4;
2092 }
2093 else
2094 {
2095 if (entry->tlsoff_entry >= -(1 << (16 - 1))
2096 && entry->tlsoff_entry < (1 << (16 - 1)))
2097 {
2098 /* setlos lo(tlsoff_entry), gr8 */
2099 bfd_put_32 (output_bfd,
2100 0x90fc0000
2101 | (entry->tlsoff_entry
2102 & (((bfd_vma)1 << 16) - 1)),
2103 plt_code);
2104 plt_code += 4;
2105 }
2106 else
2107 {
2108 /* sethi.p hi(tlsoff_entry), gr8
2109 setlo lo(tlsoff_entry), gr8 */
2110 bfd_put_32 (output_bfd,
2111 0x10f80000
2112 | ((entry->tlsoff_entry >> 16)
2113 & (((bfd_vma)1 << 16) - 1)),
2114 plt_code);
2115 plt_code += 4;
2116 bfd_put_32 (output_bfd,
2117 0x90f40000
2118 | (entry->tlsoff_entry
2119 & (((bfd_vma)1 << 16) - 1)),
2120 plt_code);
2121 plt_code += 4;
2122 }
2123 /* ld @(gr15,gr8),gr9 */
2124 bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2125 plt_code += 4;
2126 }
2127 /* ret */
2128 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2129 }
2130 else
2131 {
2132 BFD_ASSERT (entry->tlsdesc_entry);
2133
2134 /* Figure out what kind of PLT entry we need, depending on the
2135 location of the TLS descriptor within the GOT. */
2136 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2137 && entry->tlsdesc_entry < (1 << (12 - 1)))
2138 {
2139 /* lddi @(gr15, tlsdesc_entry), gr8 */
2140 bfd_put_32 (output_bfd,
2141 0x90ccf000 | (entry->tlsdesc_entry
2142 & ((1 << 12) - 1)),
2143 plt_code);
2144 plt_code += 4;
2145 }
2146 else
2147 {
2148 if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2149 && entry->tlsdesc_entry < (1 << (16 - 1)))
2150 {
2151 /* setlos lo(tlsdesc_entry), gr8 */
2152 bfd_put_32 (output_bfd,
2153 0x90fc0000
2154 | (entry->tlsdesc_entry
2155 & (((bfd_vma)1 << 16) - 1)),
2156 plt_code);
2157 plt_code += 4;
2158 }
2159 else
2160 {
2161 /* sethi.p hi(tlsdesc_entry), gr8
2162 setlo lo(tlsdesc_entry), gr8 */
2163 bfd_put_32 (output_bfd,
2164 0x10f80000
2165 | ((entry->tlsdesc_entry >> 16)
2166 & (((bfd_vma)1 << 16) - 1)),
2167 plt_code);
2168 plt_code += 4;
2169 bfd_put_32 (output_bfd,
2170 0x90f40000
2171 | (entry->tlsdesc_entry
2172 & (((bfd_vma)1 << 16) - 1)),
2173 plt_code);
2174 plt_code += 4;
2175 }
2176 /* ldd @(gr15,gr8),gr8 */
2177 bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2178 plt_code += 4;
2179 }
2180 /* jmpl @(gr8,gr0) */
2181 bfd_put_32 (output_bfd, 0x80308000, plt_code);
2182 }
2183 }
2184
2185 return TRUE;
2186 }
2187
2188 /* Handle an FRV small data reloc. */
2189
2190 static bfd_reloc_status_type
2191 elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation,
2192 contents, value)
2193 struct bfd_link_info *info;
2194 bfd *input_bfd;
2195 asection *input_section;
2196 Elf_Internal_Rela *relocation;
2197 bfd_byte *contents;
2198 bfd_vma value;
2199 {
2200 bfd_vma insn;
2201 bfd_vma gp;
2202 struct bfd_link_hash_entry *h;
2203
2204 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2205
2206 gp = (h->u.def.value
2207 + h->u.def.section->output_section->vma
2208 + h->u.def.section->output_offset);
2209
2210 value -= input_section->output_section->vma;
2211 value -= (gp - input_section->output_section->vma);
2212
2213 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2214
2215 value += relocation->r_addend;
2216
2217 if ((long) value > 0x7ff || (long) value < -0x800)
2218 return bfd_reloc_overflow;
2219
2220 bfd_put_32 (input_bfd,
2221 (insn & 0xfffff000) | (value & 0xfff),
2222 contents + relocation->r_offset);
2223
2224 return bfd_reloc_ok;
2225 }
2226
2227 /* Handle an FRV small data reloc. for the u12 field. */
2228
2229 static bfd_reloc_status_type
2230 elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation,
2231 contents, value)
2232 struct bfd_link_info *info;
2233 bfd *input_bfd;
2234 asection *input_section;
2235 Elf_Internal_Rela *relocation;
2236 bfd_byte *contents;
2237 bfd_vma value;
2238 {
2239 bfd_vma insn;
2240 bfd_vma gp;
2241 struct bfd_link_hash_entry *h;
2242 bfd_vma mask;
2243
2244 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2245
2246 gp = (h->u.def.value
2247 + h->u.def.section->output_section->vma
2248 + h->u.def.section->output_offset);
2249
2250 value -= input_section->output_section->vma;
2251 value -= (gp - input_section->output_section->vma);
2252
2253 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2254
2255 value += relocation->r_addend;
2256
2257 if ((long) value > 0x7ff || (long) value < -0x800)
2258 return bfd_reloc_overflow;
2259
2260 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
2261 mask = 0x3f03f;
2262 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2263
2264 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2265
2266 return bfd_reloc_ok;
2267 }
2268
2269 /* Handle an FRV ELF HI16 reloc. */
2270
2271 static bfd_reloc_status_type
2272 elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value)
2273 bfd *input_bfd;
2274 Elf_Internal_Rela *relhi;
2275 bfd_byte *contents;
2276 bfd_vma value;
2277 {
2278 bfd_vma insn;
2279
2280 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2281
2282 value += relhi->r_addend;
2283 value = ((value >> 16) & 0xffff);
2284
2285 insn = (insn & 0xffff0000) | value;
2286
2287 if ((long) value > 0xffff || (long) value < -0x10000)
2288 return bfd_reloc_overflow;
2289
2290 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2291 return bfd_reloc_ok;
2292
2293 }
2294 static bfd_reloc_status_type
2295 elf32_frv_relocate_lo16 (input_bfd, rello, contents, value)
2296 bfd *input_bfd;
2297 Elf_Internal_Rela *rello;
2298 bfd_byte *contents;
2299 bfd_vma value;
2300 {
2301 bfd_vma insn;
2302
2303 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2304
2305 value += rello->r_addend;
2306 value = value & 0xffff;
2307
2308 insn = (insn & 0xffff0000) | value;
2309
2310 if ((long) value > 0xffff || (long) value < -0x10000)
2311 return bfd_reloc_overflow;
2312
2313 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2314 return bfd_reloc_ok;
2315 }
2316
2317 /* Perform the relocation for the CALL label24 instruction. */
2318
2319 static bfd_reloc_status_type
2320 elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value)
2321 bfd *input_bfd;
2322 asection *input_section;
2323 Elf_Internal_Rela *rello;
2324 bfd_byte *contents;
2325 bfd_vma value;
2326 {
2327 bfd_vma insn;
2328 bfd_vma label6;
2329 bfd_vma label18;
2330
2331 /* The format for the call instruction is:
2332
2333 0 000000 0001111 000000000000000000
2334 label6 opcode label18
2335
2336 The branch calculation is: pc + (4*label24)
2337 where label24 is the concatenation of label6 and label18. */
2338
2339 /* Grab the instruction. */
2340 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2341
2342 value -= input_section->output_section->vma + input_section->output_offset;
2343 value -= rello->r_offset;
2344 value += rello->r_addend;
2345
2346 value = value >> 2;
2347
2348 label6 = value & 0xfc0000;
2349 label6 = label6 << 7;
2350
2351 label18 = value & 0x3ffff;
2352
2353 insn = insn & 0x803c0000;
2354 insn = insn | label6;
2355 insn = insn | label18;
2356
2357 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2358
2359 return bfd_reloc_ok;
2360 }
2361
2362 static bfd_reloc_status_type
2363 elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation,
2364 contents, value)
2365 struct bfd_link_info *info;
2366 bfd *input_bfd;
2367 asection *input_section;
2368 Elf_Internal_Rela *relocation;
2369 bfd_byte *contents;
2370 bfd_vma value;
2371 {
2372 bfd_vma insn;
2373 bfd_vma gp;
2374 struct bfd_link_hash_entry *h;
2375
2376 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2377
2378 gp = (h->u.def.value
2379 + h->u.def.section->output_section->vma
2380 + h->u.def.section->output_offset);
2381
2382 value -= input_section->output_section->vma;
2383 value -= (gp - input_section->output_section->vma);
2384 value += relocation->r_addend;
2385 value = ((value >> 16) & 0xffff);
2386
2387 if ((long) value > 0xffff || (long) value < -0x10000)
2388 return bfd_reloc_overflow;
2389
2390 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2391 insn = (insn & 0xffff0000) | value;
2392
2393 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2394 return bfd_reloc_ok;
2395 }
2396
2397 static bfd_reloc_status_type
2398 elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation,
2399 contents, value)
2400 struct bfd_link_info *info;
2401 bfd *input_bfd;
2402 asection *input_section;
2403 Elf_Internal_Rela *relocation;
2404 bfd_byte *contents;
2405 bfd_vma value;
2406 {
2407 bfd_vma insn;
2408 bfd_vma gp;
2409 struct bfd_link_hash_entry *h;
2410
2411 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2412
2413 gp = (h->u.def.value
2414 + h->u.def.section->output_section->vma
2415 + h->u.def.section->output_offset);
2416
2417 value -= input_section->output_section->vma;
2418 value -= (gp - input_section->output_section->vma);
2419 value += relocation->r_addend;
2420 value = value & 0xffff;
2421
2422 if ((long) value > 0xffff || (long) value < -0x10000)
2423 return bfd_reloc_overflow;
2424
2425 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2426 insn = (insn & 0xffff0000) | value;
2427
2428 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2429
2430 return bfd_reloc_ok;
2431 }
2432
2433 static reloc_howto_type *
2434 frv_reloc_type_lookup (abfd, code)
2435 bfd *abfd ATTRIBUTE_UNUSED;
2436 bfd_reloc_code_real_type code;
2437 {
2438 switch (code)
2439 {
2440 default:
2441 break;
2442
2443 case BFD_RELOC_NONE:
2444 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2445
2446 case BFD_RELOC_32:
2447 if (elf_elfheader (abfd)->e_type == ET_EXEC
2448 || elf_elfheader (abfd)->e_type == ET_DYN)
2449 return &elf32_frv_rel_32_howto;
2450 /* Fall through. */
2451 case BFD_RELOC_CTOR:
2452 return &elf32_frv_howto_table[ (int) R_FRV_32];
2453
2454 case BFD_RELOC_FRV_LABEL16:
2455 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2456
2457 case BFD_RELOC_FRV_LABEL24:
2458 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2459
2460 case BFD_RELOC_FRV_LO16:
2461 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2462
2463 case BFD_RELOC_FRV_HI16:
2464 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2465
2466 case BFD_RELOC_FRV_GPREL12:
2467 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2468
2469 case BFD_RELOC_FRV_GPRELU12:
2470 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2471
2472 case BFD_RELOC_FRV_GPREL32:
2473 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2474
2475 case BFD_RELOC_FRV_GPRELHI:
2476 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2477
2478 case BFD_RELOC_FRV_GPRELLO:
2479 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2480
2481 case BFD_RELOC_FRV_GOT12:
2482 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2483
2484 case BFD_RELOC_FRV_GOTHI:
2485 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2486
2487 case BFD_RELOC_FRV_GOTLO:
2488 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2489
2490 case BFD_RELOC_FRV_FUNCDESC:
2491 if (elf_elfheader (abfd)->e_type == ET_EXEC
2492 || elf_elfheader (abfd)->e_type == ET_DYN)
2493 return &elf32_frv_rel_funcdesc_howto;
2494 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2495
2496 case BFD_RELOC_FRV_FUNCDESC_GOT12:
2497 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2498
2499 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2500 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2501
2502 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2503 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2504
2505 case BFD_RELOC_FRV_FUNCDESC_VALUE:
2506 if (elf_elfheader (abfd)->e_type == ET_EXEC
2507 || elf_elfheader (abfd)->e_type == ET_DYN)
2508 return &elf32_frv_rel_funcdesc_value_howto;
2509 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2510
2511 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2512 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2513
2514 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2515 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2516
2517 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2518 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2519
2520 case BFD_RELOC_FRV_GOTOFF12:
2521 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2522
2523 case BFD_RELOC_FRV_GOTOFFHI:
2524 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2525
2526 case BFD_RELOC_FRV_GOTOFFLO:
2527 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2528
2529 case BFD_RELOC_FRV_GETTLSOFF:
2530 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2531
2532 case BFD_RELOC_FRV_TLSDESC_VALUE:
2533 if (elf_elfheader (abfd)->e_type == ET_EXEC
2534 || elf_elfheader (abfd)->e_type == ET_DYN)
2535 return &elf32_frv_rel_tlsdesc_value_howto;
2536 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2537
2538 case BFD_RELOC_FRV_GOTTLSDESC12:
2539 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2540
2541 case BFD_RELOC_FRV_GOTTLSDESCHI:
2542 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2543
2544 case BFD_RELOC_FRV_GOTTLSDESCLO:
2545 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2546
2547 case BFD_RELOC_FRV_TLSMOFF12:
2548 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2549
2550 case BFD_RELOC_FRV_TLSMOFFHI:
2551 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2552
2553 case BFD_RELOC_FRV_TLSMOFFLO:
2554 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2555
2556 case BFD_RELOC_FRV_GOTTLSOFF12:
2557 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2558
2559 case BFD_RELOC_FRV_GOTTLSOFFHI:
2560 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2561
2562 case BFD_RELOC_FRV_GOTTLSOFFLO:
2563 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2564
2565 case BFD_RELOC_FRV_TLSOFF:
2566 if (elf_elfheader (abfd)->e_type == ET_EXEC
2567 || elf_elfheader (abfd)->e_type == ET_DYN)
2568 return &elf32_frv_rel_tlsoff_howto;
2569 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2570
2571 case BFD_RELOC_FRV_TLSDESC_RELAX:
2572 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2573
2574 case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2575 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2576
2577 case BFD_RELOC_FRV_TLSOFF_RELAX:
2578 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2579
2580 case BFD_RELOC_FRV_TLSMOFF:
2581 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2582
2583 case BFD_RELOC_VTABLE_INHERIT:
2584 return &elf32_frv_vtinherit_howto;
2585
2586 case BFD_RELOC_VTABLE_ENTRY:
2587 return &elf32_frv_vtentry_howto;
2588 }
2589
2590 return NULL;
2591 }
2592
2593 /* Set the howto pointer for an FRV ELF reloc. */
2594
2595 static void
2596 frv_info_to_howto_rela (abfd, cache_ptr, dst)
2597 bfd *abfd ATTRIBUTE_UNUSED;
2598 arelent *cache_ptr;
2599 Elf_Internal_Rela *dst;
2600 {
2601 unsigned int r_type;
2602
2603 r_type = ELF32_R_TYPE (dst->r_info);
2604 switch (r_type)
2605 {
2606 case R_FRV_GNU_VTINHERIT:
2607 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2608 break;
2609
2610 case R_FRV_GNU_VTENTRY:
2611 cache_ptr->howto = &elf32_frv_vtentry_howto;
2612 break;
2613
2614 default:
2615 cache_ptr->howto = & elf32_frv_howto_table [r_type];
2616 break;
2617 }
2618 }
2619
2620 /* Set the howto pointer for an FRV ELF REL reloc. */
2621 static void
2622 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2623 arelent *cache_ptr, Elf_Internal_Rela *dst)
2624 {
2625 unsigned int r_type;
2626
2627 r_type = ELF32_R_TYPE (dst->r_info);
2628 switch (r_type)
2629 {
2630 case R_FRV_32:
2631 cache_ptr->howto = &elf32_frv_rel_32_howto;
2632 break;
2633
2634 case R_FRV_FUNCDESC:
2635 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2636 break;
2637
2638 case R_FRV_FUNCDESC_VALUE:
2639 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2640 break;
2641
2642 case R_FRV_TLSDESC_VALUE:
2643 cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2644 break;
2645
2646 case R_FRV_TLSOFF:
2647 cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2648 break;
2649
2650 default:
2651 cache_ptr->howto = NULL;
2652 break;
2653 }
2654 }
2655 \f
2656 /* Perform a single relocation. By default we use the standard BFD
2657 routines, but a few relocs, we have to do them ourselves. */
2658
2659 static bfd_reloc_status_type
2660 frv_final_link_relocate (howto, input_bfd, input_section, contents, rel,
2661 relocation)
2662 reloc_howto_type *howto;
2663 bfd *input_bfd;
2664 asection *input_section;
2665 bfd_byte *contents;
2666 Elf_Internal_Rela *rel;
2667 bfd_vma relocation;
2668 {
2669 return _bfd_final_link_relocate (howto, input_bfd, input_section,
2670 contents, rel->r_offset, relocation,
2671 rel->r_addend);
2672 }
2673
2674 \f
2675 /* Relocate an FRV ELF section.
2676
2677 The RELOCATE_SECTION function is called by the new ELF backend linker
2678 to handle the relocations for a section.
2679
2680 The relocs are always passed as Rela structures; if the section
2681 actually uses Rel structures, the r_addend field will always be
2682 zero.
2683
2684 This function is responsible for adjusting the section contents as
2685 necessary, and (if using Rela relocs and generating a relocatable
2686 output file) adjusting the reloc addend as necessary.
2687
2688 This function does not have to worry about setting the reloc
2689 address or the reloc symbol index.
2690
2691 LOCAL_SYMS is a pointer to the swapped in local symbols.
2692
2693 LOCAL_SECTIONS is an array giving the section in the input file
2694 corresponding to the st_shndx field of each local symbol.
2695
2696 The global hash table entry for the global symbols can be found
2697 via elf_sym_hashes (input_bfd).
2698
2699 When generating relocatable output, this function must handle
2700 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2701 going to be the section symbol corresponding to the output
2702 section, which means that the addend must be adjusted
2703 accordingly. */
2704
2705 static bfd_boolean
2706 elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
2707 contents, relocs, local_syms, local_sections)
2708 bfd *output_bfd ATTRIBUTE_UNUSED;
2709 struct bfd_link_info *info;
2710 bfd *input_bfd;
2711 asection *input_section;
2712 bfd_byte *contents;
2713 Elf_Internal_Rela *relocs;
2714 Elf_Internal_Sym *local_syms;
2715 asection **local_sections;
2716 {
2717 Elf_Internal_Shdr *symtab_hdr;
2718 struct elf_link_hash_entry **sym_hashes;
2719 Elf_Internal_Rela *rel;
2720 Elf_Internal_Rela *relend;
2721 unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2722 check_segment[2];
2723 int silence_segment_error = !(info->shared || info->pie);
2724 unsigned long insn;
2725
2726 if (info->relocatable)
2727 return TRUE;
2728
2729 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2730 sym_hashes = elf_sym_hashes (input_bfd);
2731 relend = relocs + input_section->reloc_count;
2732
2733 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2734 input_section->output_section);
2735 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2736 got_segment = _frvfdpic_osec_to_segment (output_bfd,
2737 frvfdpic_got_section (info)
2738 ->output_section);
2739 else
2740 got_segment = -1;
2741 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2742 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2743 frvfdpic_gotfixup_section (info)
2744 ->output_section);
2745 else
2746 gprel_segment = -1;
2747 if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2748 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2749 frvfdpic_plt_section (info)
2750 ->output_section);
2751 else
2752 plt_segment = -1;
2753 if (elf_hash_table (info)->tls_sec)
2754 tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2755 elf_hash_table (info)->tls_sec);
2756 else
2757 tls_segment = -1;
2758
2759 for (rel = relocs; rel < relend; rel ++)
2760 {
2761 reloc_howto_type *howto;
2762 unsigned long r_symndx;
2763 Elf_Internal_Sym *sym;
2764 asection *sec;
2765 struct elf_link_hash_entry *h;
2766 bfd_vma relocation;
2767 bfd_reloc_status_type r;
2768 const char * name = NULL;
2769 int r_type;
2770 asection *osec;
2771 struct frvfdpic_relocs_info *picrel;
2772 bfd_vma orig_addend = rel->r_addend;
2773
2774 r_type = ELF32_R_TYPE (rel->r_info);
2775
2776 if ( r_type == R_FRV_GNU_VTINHERIT
2777 || r_type == R_FRV_GNU_VTENTRY)
2778 continue;
2779
2780 /* This is a final link. */
2781 r_symndx = ELF32_R_SYM (rel->r_info);
2782 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2783 h = NULL;
2784 sym = NULL;
2785 sec = NULL;
2786
2787 if (r_symndx < symtab_hdr->sh_info)
2788 {
2789 sym = local_syms + r_symndx;
2790 osec = sec = local_sections [r_symndx];
2791 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2792
2793 name = bfd_elf_string_from_elf_section
2794 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2795 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
2796 }
2797 else
2798 {
2799 h = sym_hashes [r_symndx - symtab_hdr->sh_info];
2800
2801 while (h->root.type == bfd_link_hash_indirect
2802 || h->root.type == bfd_link_hash_warning)
2803 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2804
2805 name = h->root.root.string;
2806
2807 if ((h->root.type == bfd_link_hash_defined
2808 || h->root.type == bfd_link_hash_defweak))
2809 {
2810 if (/* TLSMOFF forces local binding. */
2811 r_type != R_FRV_TLSMOFF
2812 && ! FRVFDPIC_SYM_LOCAL (info, h))
2813 {
2814 sec = NULL;
2815 relocation = 0;
2816 }
2817 else
2818 {
2819 sec = h->root.u.def.section;
2820 relocation = (h->root.u.def.value
2821 + sec->output_section->vma
2822 + sec->output_offset);
2823 }
2824 }
2825 else if (h->root.type == bfd_link_hash_undefweak)
2826 {
2827 relocation = 0;
2828 }
2829 else if (info->unresolved_syms_in_objects == RM_IGNORE
2830 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2831 relocation = 0;
2832 else
2833 {
2834 if (! ((*info->callbacks->undefined_symbol)
2835 (info, h->root.root.string, input_bfd,
2836 input_section, rel->r_offset,
2837 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2838 || ELF_ST_VISIBILITY (h->other)))))
2839 return FALSE;
2840 relocation = 0;
2841 }
2842 osec = sec;
2843 }
2844
2845 switch (r_type)
2846 {
2847 case R_FRV_LABEL24:
2848 case R_FRV_32:
2849 if (! IS_FDPIC (output_bfd))
2850 goto non_fdpic;
2851
2852 case R_FRV_GOT12:
2853 case R_FRV_GOTHI:
2854 case R_FRV_GOTLO:
2855 case R_FRV_FUNCDESC_GOT12:
2856 case R_FRV_FUNCDESC_GOTHI:
2857 case R_FRV_FUNCDESC_GOTLO:
2858 case R_FRV_GOTOFF12:
2859 case R_FRV_GOTOFFHI:
2860 case R_FRV_GOTOFFLO:
2861 case R_FRV_FUNCDESC_GOTOFF12:
2862 case R_FRV_FUNCDESC_GOTOFFHI:
2863 case R_FRV_FUNCDESC_GOTOFFLO:
2864 case R_FRV_FUNCDESC:
2865 case R_FRV_FUNCDESC_VALUE:
2866 case R_FRV_GETTLSOFF:
2867 case R_FRV_TLSDESC_VALUE:
2868 case R_FRV_GOTTLSDESC12:
2869 case R_FRV_GOTTLSDESCHI:
2870 case R_FRV_GOTTLSDESCLO:
2871 case R_FRV_TLSMOFF12:
2872 case R_FRV_TLSMOFFHI:
2873 case R_FRV_TLSMOFFLO:
2874 case R_FRV_GOTTLSOFF12:
2875 case R_FRV_GOTTLSOFFHI:
2876 case R_FRV_GOTTLSOFFLO:
2877 case R_FRV_TLSOFF:
2878 case R_FRV_TLSDESC_RELAX:
2879 case R_FRV_GETTLSOFF_RELAX:
2880 case R_FRV_TLSOFF_RELAX:
2881 case R_FRV_TLSMOFF:
2882 if (h != NULL)
2883 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2884 (info), input_bfd, h,
2885 orig_addend, INSERT);
2886 else
2887 /* In order to find the entry we created before, we must
2888 use the original addend, not the one that may have been
2889 modified by _bfd_elf_rela_local_sym(). */
2890 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2891 (info), input_bfd, r_symndx,
2892 orig_addend, INSERT);
2893 if (! picrel)
2894 return FALSE;
2895
2896 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2897 osec, sym,
2898 rel->r_addend))
2899 {
2900 (*_bfd_error_handler)
2901 (_("%B(%A+0x%x): relocation to `%s+%x' may have caused the error above"),
2902 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2903 return FALSE;
2904 }
2905
2906 break;
2907
2908 default:
2909 non_fdpic:
2910 picrel = NULL;
2911 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
2912 {
2913 info->callbacks->warning
2914 (info, _("relocation references symbol not defined in the module"),
2915 name, input_bfd, input_section, rel->r_offset);
2916 return FALSE;
2917 }
2918 break;
2919 }
2920
2921 switch (r_type)
2922 {
2923 case R_FRV_GETTLSOFF:
2924 case R_FRV_TLSDESC_VALUE:
2925 case R_FRV_GOTTLSDESC12:
2926 case R_FRV_GOTTLSDESCHI:
2927 case R_FRV_GOTTLSDESCLO:
2928 case R_FRV_TLSMOFF12:
2929 case R_FRV_TLSMOFFHI:
2930 case R_FRV_TLSMOFFLO:
2931 case R_FRV_GOTTLSOFF12:
2932 case R_FRV_GOTTLSOFFHI:
2933 case R_FRV_GOTTLSOFFLO:
2934 case R_FRV_TLSOFF:
2935 case R_FRV_TLSDESC_RELAX:
2936 case R_FRV_GETTLSOFF_RELAX:
2937 case R_FRV_TLSOFF_RELAX:
2938 case R_FRV_TLSMOFF:
2939 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2940 relocation += tls_biased_base (info);
2941 break;
2942
2943 default:
2944 break;
2945 }
2946
2947 /* Try to apply TLS relaxations. */
2948 if (1)
2949 switch (r_type)
2950 {
2951
2952 #define LOCAL_EXEC_P(info, picrel) \
2953 ((info)->executable \
2954 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2955 #define INITIAL_EXEC_P(info, picrel) \
2956 (((info)->executable || (info)->flags & DF_STATIC_TLS) \
2957 && (picrel)->tlsoff_entry)
2958
2959 #define IN_RANGE_FOR_OFST12_P(value) \
2960 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2961 #define IN_RANGE_FOR_SETLOS_P(value) \
2962 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2963 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2964 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2965
2966 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2967 (LOCAL_EXEC_P ((info), (picrel)) \
2968 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2969 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2970 (INITIAL_EXEC_P ((info), (picrel)) \
2971 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2972
2973 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2974 (LOCAL_EXEC_P ((info), (picrel)))
2975 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2976 (INITIAL_EXEC_P ((info), (picrel)))
2977
2978 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2979 (LOCAL_EXEC_P ((info), (picrel)) \
2980 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2981
2982 case R_FRV_GETTLSOFF:
2983 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2984
2985 /* Is this a call instruction? */
2986 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2987 {
2988 r = info->callbacks->warning
2989 (info,
2990 _("R_FRV_GETTLSOFF not applied to a call instruction"),
2991 name, input_bfd, input_section, rel->r_offset);
2992 return FALSE;
2993 }
2994
2995 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2996 relocation + rel->r_addend))
2997 {
2998 /* Replace the call instruction (except the packing bit)
2999 with setlos #tlsmofflo(symbol+offset), gr9. */
3000 insn &= (unsigned long)0x80000000;
3001 insn |= (unsigned long)0x12fc0000;
3002 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3003
3004 r_type = R_FRV_TLSMOFFLO;
3005 howto = elf32_frv_howto_table + r_type;
3006 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3007 }
3008
3009 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
3010 {
3011 /* Replace the call instruction (except the packing bit)
3012 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
3013 insn &= (unsigned long)0x80000000;
3014 insn |= (unsigned long)0x12c8f000;
3015 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3016
3017 r_type = R_FRV_GOTTLSOFF12;
3018 howto = elf32_frv_howto_table + r_type;
3019 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3020 }
3021
3022 break;
3023
3024 case R_FRV_GOTTLSDESC12:
3025 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3026
3027 /* Is this an lddi instruction? */
3028 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
3029 {
3030 r = info->callbacks->warning
3031 (info,
3032 _("R_FRV_GOTTLSDESC12 not applied to an lddi instruction"),
3033 name, input_bfd, input_section, rel->r_offset);
3034 return FALSE;
3035 }
3036
3037 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3038 relocation + rel->r_addend)
3039 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3040 info))
3041 {
3042 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3043 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3044 Preserve the packing bit. */
3045 insn = (insn & (unsigned long)0x80000000)
3046 | ((insn + (unsigned long)0x02000000)
3047 & (unsigned long)0x7e000000);
3048 insn |= (unsigned long)0x00fc0000;
3049 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3050
3051 r_type = R_FRV_TLSMOFFLO;
3052 howto = elf32_frv_howto_table + r_type;
3053 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3054 }
3055
3056 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3057 relocation + rel->r_addend))
3058 {
3059 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3060 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3061 Preserve the packing bit. */
3062 insn = (insn & (unsigned long)0x80000000)
3063 | ((insn + (unsigned long)0x02000000)
3064 & (unsigned long)0x7e000000);
3065 insn |= (unsigned long)0x00f80000;
3066 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3067
3068 r_type = R_FRV_TLSMOFFHI;
3069 howto = elf32_frv_howto_table + r_type;
3070 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3071 }
3072
3073 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3074 {
3075 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3076 with ldi @(grB, #gottlsoff12(symbol+offset),
3077 gr<C+1>. Preserve the packing bit. If gottlsoff12
3078 overflows, we'll error out, but that's sort-of ok,
3079 since we'd started with gottlsdesc12, that's actually
3080 more demanding. Compiling with -fPIE instead of
3081 -fpie would fix it; linking with --relax should fix
3082 it as well. */
3083 insn = (insn & (unsigned long)0x80cbf000)
3084 | ((insn + (unsigned long)0x02000000)
3085 & (unsigned long)0x7e000000);
3086 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3087
3088 r_type = R_FRV_GOTTLSOFF12;
3089 howto = elf32_frv_howto_table + r_type;
3090 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3091 }
3092
3093 break;
3094
3095 case R_FRV_GOTTLSDESCHI:
3096 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3097
3098 /* Is this a sethi instruction? */
3099 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3100 {
3101 r = info->callbacks->warning
3102 (info,
3103 _("R_FRV_GOTTLSDESCHI not applied to a sethi instruction"),
3104 name, input_bfd, input_section, rel->r_offset);
3105 return FALSE;
3106 }
3107
3108 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3109 relocation + rel->r_addend)
3110 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3111 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3112 {
3113 /* Replace sethi with a nop. Preserve the packing bit. */
3114 insn &= (unsigned long)0x80000000;
3115 insn |= (unsigned long)0x00880000;
3116 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3117
3118 /* Nothing to relocate. */
3119 continue;
3120 }
3121
3122 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3123 {
3124 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3125 r_type = R_FRV_GOTTLSOFFHI;
3126 howto = elf32_frv_howto_table + r_type;
3127 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3128 }
3129
3130 break;
3131
3132 case R_FRV_GOTTLSDESCLO:
3133 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3134
3135 /* Is this a setlo or setlos instruction? */
3136 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3137 {
3138 r = info->callbacks->warning
3139 (info,
3140 _("R_FRV_GOTTLSDESCLO"
3141 " not applied to a setlo or setlos instruction"),
3142 name, input_bfd, input_section, rel->r_offset);
3143 return FALSE;
3144 }
3145
3146 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3147 relocation + rel->r_addend)
3148 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3149 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3150 {
3151 /* Replace setlo/setlos with a nop. Preserve the
3152 packing bit. */
3153 insn &= (unsigned long)0x80000000;
3154 insn |= (unsigned long)0x00880000;
3155 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3156
3157 /* Nothing to relocate. */
3158 continue;
3159 }
3160
3161 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3162 {
3163 /* If the corresponding sethi (if it exists) decayed
3164 to a nop, make sure this becomes (or already is) a
3165 setlos, not setlo. */
3166 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3167 {
3168 insn |= (unsigned long)0x00080000;
3169 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3170 }
3171
3172 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3173 r_type = R_FRV_GOTTLSOFFLO;
3174 howto = elf32_frv_howto_table + r_type;
3175 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3176 }
3177
3178 break;
3179
3180 case R_FRV_TLSDESC_RELAX:
3181 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3182
3183 /* Is this an ldd instruction? */
3184 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3185 {
3186 r = info->callbacks->warning
3187 (info,
3188 _("R_FRV_TLSDESC_RELAX not applied to an ldd instruction"),
3189 name, input_bfd, input_section, rel->r_offset);
3190 return FALSE;
3191 }
3192
3193 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3194 relocation + rel->r_addend)
3195 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3196 info))
3197 {
3198 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3199 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3200 Preserve the packing bit. */
3201 insn = (insn & (unsigned long)0x80000000)
3202 | ((insn + (unsigned long)0x02000000)
3203 & (unsigned long)0x7e000000);
3204 insn |= (unsigned long)0x00fc0000;
3205 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3206
3207 r_type = R_FRV_TLSMOFFLO;
3208 howto = elf32_frv_howto_table + r_type;
3209 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3210 }
3211
3212 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3213 relocation + rel->r_addend))
3214 {
3215 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3216 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3217 Preserve the packing bit. */
3218 insn = (insn & (unsigned long)0x80000000)
3219 | ((insn + (unsigned long)0x02000000)
3220 & (unsigned long)0x7e000000);
3221 insn |= (unsigned long)0x00f80000;
3222 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3223
3224 r_type = R_FRV_TLSMOFFHI;
3225 howto = elf32_frv_howto_table + r_type;
3226 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3227 }
3228
3229 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3230 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3231 {
3232 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3233 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3234 Preserve the packing bit. */
3235 insn = (insn & (unsigned long)0x8003f000)
3236 | (unsigned long)0x00c80000
3237 | ((insn + (unsigned long)0x02000000)
3238 & (unsigned long)0x7e000000);
3239 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3240
3241 r_type = R_FRV_GOTTLSOFF12;
3242 howto = elf32_frv_howto_table + r_type;
3243 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3244 }
3245
3246 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3247 {
3248 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3249 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3250 Preserve the packing bit. */
3251 insn = (insn & (unsigned long)0x81ffffbf)
3252 | ((insn + (unsigned long)0x02000000)
3253 & (unsigned long)0x7e000000);
3254 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3255
3256 /* #tlsoff(symbol+offset) is just a relaxation
3257 annotation, so there's nothing left to
3258 relocate. */
3259 continue;
3260 }
3261
3262 break;
3263
3264 case R_FRV_GETTLSOFF_RELAX:
3265 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3266
3267 /* Is this a calll or callil instruction? */
3268 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3269 {
3270 r = info->callbacks->warning
3271 (info,
3272 _("R_FRV_GETTLSOFF_RELAX"
3273 " not applied to a calll instruction"),
3274 name, input_bfd, input_section, rel->r_offset);
3275 return FALSE;
3276 }
3277
3278 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3279 relocation + rel->r_addend)
3280 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3281 info))
3282 {
3283 /* Replace calll with a nop. Preserve the packing bit. */
3284 insn &= (unsigned long)0x80000000;
3285 insn |= (unsigned long)0x00880000;
3286 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3287
3288 /* Nothing to relocate. */
3289 continue;
3290 }
3291
3292 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3293 relocation + rel->r_addend))
3294 {
3295 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3296 Preserve the packing bit. */
3297 insn &= (unsigned long)0x80000000;
3298 insn |= (unsigned long)0x12f40000;
3299 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3300
3301 r_type = R_FRV_TLSMOFFLO;
3302 howto = elf32_frv_howto_table + r_type;
3303 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3304 }
3305
3306 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3307 {
3308 /* Replace calll with a nop. Preserve the packing bit. */
3309 insn &= (unsigned long)0x80000000;
3310 insn |= (unsigned long)0x00880000;
3311 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3312
3313 /* Nothing to relocate. */
3314 continue;
3315 }
3316
3317 break;
3318
3319 case R_FRV_GOTTLSOFF12:
3320 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3321
3322 /* Is this an ldi instruction? */
3323 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3324 {
3325 r = info->callbacks->warning
3326 (info,
3327 _("R_FRV_GOTTLSOFF12 not applied to an ldi instruction"),
3328 name, input_bfd, input_section, rel->r_offset);
3329 return FALSE;
3330 }
3331
3332 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3333 relocation + rel->r_addend))
3334 {
3335 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3336 with setlos #tlsmofflo(symbol+offset), grC.
3337 Preserve the packing bit. */
3338 insn &= (unsigned long)0xfe000000;
3339 insn |= (unsigned long)0x00fc0000;
3340 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3341
3342 r_type = R_FRV_TLSMOFFLO;
3343 howto = elf32_frv_howto_table + r_type;
3344 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3345 }
3346
3347 break;
3348
3349 case R_FRV_GOTTLSOFFHI:
3350 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3351
3352 /* Is this a sethi instruction? */
3353 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3354 {
3355 r = info->callbacks->warning
3356 (info,
3357 _("R_FRV_GOTTLSOFFHI not applied to a sethi instruction"),
3358 name, input_bfd, input_section, rel->r_offset);
3359 return FALSE;
3360 }
3361
3362 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3363 relocation + rel->r_addend)
3364 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3365 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3366 {
3367 /* Replace sethi with a nop. Preserve the packing bit. */
3368 insn &= (unsigned long)0x80000000;
3369 insn |= (unsigned long)0x00880000;
3370 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3371
3372 /* Nothing to relocate. */
3373 continue;
3374 }
3375
3376 break;
3377
3378 case R_FRV_GOTTLSOFFLO:
3379 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3380
3381 /* Is this a setlo or setlos instruction? */
3382 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3383 {
3384 r = info->callbacks->warning
3385 (info,
3386 _("R_FRV_GOTTLSOFFLO"
3387 " not applied to a setlo or setlos instruction"),
3388 name, input_bfd, input_section, rel->r_offset);
3389 return FALSE;
3390 }
3391
3392 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3393 relocation + rel->r_addend)
3394 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3395 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3396 {
3397 /* Replace setlo/setlos with a nop. Preserve the
3398 packing bit. */
3399 insn &= (unsigned long)0x80000000;
3400 insn |= (unsigned long)0x00880000;
3401 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3402
3403 /* Nothing to relocate. */
3404 continue;
3405 }
3406
3407 break;
3408
3409 case R_FRV_TLSOFF_RELAX:
3410 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3411
3412 /* Is this an ld instruction? */
3413 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3414 {
3415 r = info->callbacks->warning
3416 (info,
3417 _("R_FRV_TLSOFF_RELAX not applied to an ld instruction"),
3418 name, input_bfd, input_section, rel->r_offset);
3419 return FALSE;
3420 }
3421
3422 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3423 relocation + rel->r_addend))
3424 {
3425 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3426 with setlos #tlsmofflo(symbol+offset), grC.
3427 Preserve the packing bit. */
3428 insn &= (unsigned long)0xfe000000;
3429 insn |= (unsigned long)0x00fc0000;
3430 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3431
3432 r_type = R_FRV_TLSMOFFLO;
3433 howto = elf32_frv_howto_table + r_type;
3434 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3435 }
3436
3437 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3438 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3439 {
3440 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3441 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3442 Preserve the packing bit. */
3443 insn = (insn & (unsigned long)0xfe03f000)
3444 | (unsigned long)0x00c80000;;
3445 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3446
3447 r_type = R_FRV_GOTTLSOFF12;
3448 howto = elf32_frv_howto_table + r_type;
3449 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3450 }
3451
3452 break;
3453
3454 case R_FRV_TLSMOFFHI:
3455 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3456
3457 /* Is this a sethi instruction? */
3458 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3459 {
3460 r = info->callbacks->warning
3461 (info,
3462 _("R_FRV_TLSMOFFHI not applied to a sethi instruction"),
3463 name, input_bfd, input_section, rel->r_offset);
3464 return FALSE;
3465 }
3466
3467 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3468 info))
3469 {
3470 /* Replace sethi with a nop. Preserve the packing bit. */
3471 insn &= (unsigned long)0x80000000;
3472 insn |= (unsigned long)0x00880000;
3473 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3474
3475 /* Nothing to relocate. */
3476 continue;
3477 }
3478
3479 break;
3480
3481 case R_FRV_TLSMOFFLO:
3482 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3483
3484 /* Is this a setlo or setlos instruction? */
3485 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3486 {
3487 r = info->callbacks->warning
3488 (info,
3489 _("R_FRV_TLSMOFFLO"
3490 " not applied to a setlo or setlos instruction"),
3491 name, input_bfd, input_section, rel->r_offset);
3492 return FALSE;
3493 }
3494
3495 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3496 info))
3497 /* If the corresponding sethi (if it exists) decayed
3498 to a nop, make sure this becomes (or already is) a
3499 setlos, not setlo. */
3500 {
3501 insn |= (unsigned long)0x00080000;
3502 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3503 }
3504
3505 break;
3506
3507 /*
3508 There's nothing to relax in these:
3509 R_FRV_TLSDESC_VALUE
3510 R_FRV_TLSOFF
3511 R_FRV_TLSMOFF12
3512 R_FRV_TLSMOFFHI
3513 R_FRV_TLSMOFFLO
3514 R_FRV_TLSMOFF
3515 */
3516
3517 default:
3518 break;
3519 }
3520
3521 switch (r_type)
3522 {
3523 case R_FRV_LABEL24:
3524 check_segment[0] = isec_segment;
3525 if (! IS_FDPIC (output_bfd))
3526 check_segment[1] = isec_segment;
3527 else if (picrel->plt)
3528 {
3529 relocation = frvfdpic_plt_section (info)->output_section->vma
3530 + frvfdpic_plt_section (info)->output_offset
3531 + picrel->plt_entry;
3532 check_segment[1] = plt_segment;
3533 }
3534 /* We don't want to warn on calls to undefined weak symbols,
3535 as calls to them must be protected by non-NULL tests
3536 anyway, and unprotected calls would invoke undefined
3537 behavior. */
3538 else if (picrel->symndx == -1
3539 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3540 check_segment[1] = check_segment[0];
3541 else
3542 check_segment[1] = sec
3543 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3544 : (unsigned)-1;
3545 break;
3546
3547 case R_FRV_GOT12:
3548 case R_FRV_GOTHI:
3549 case R_FRV_GOTLO:
3550 relocation = picrel->got_entry;
3551 check_segment[0] = check_segment[1] = got_segment;
3552 break;
3553
3554 case R_FRV_FUNCDESC_GOT12:
3555 case R_FRV_FUNCDESC_GOTHI:
3556 case R_FRV_FUNCDESC_GOTLO:
3557 relocation = picrel->fdgot_entry;
3558 check_segment[0] = check_segment[1] = got_segment;
3559 break;
3560
3561 case R_FRV_GOTOFFHI:
3562 case R_FRV_GOTOFF12:
3563 case R_FRV_GOTOFFLO:
3564 relocation -= frvfdpic_got_section (info)->output_section->vma
3565 + frvfdpic_got_section (info)->output_offset
3566 + frvfdpic_got_initial_offset (info);
3567 check_segment[0] = got_segment;
3568 check_segment[1] = sec
3569 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3570 : (unsigned)-1;
3571 break;
3572
3573 case R_FRV_FUNCDESC_GOTOFF12:
3574 case R_FRV_FUNCDESC_GOTOFFHI:
3575 case R_FRV_FUNCDESC_GOTOFFLO:
3576 relocation = picrel->fd_entry;
3577 check_segment[0] = check_segment[1] = got_segment;
3578 break;
3579
3580 case R_FRV_FUNCDESC:
3581 {
3582 int dynindx;
3583 bfd_vma addend = rel->r_addend;
3584
3585 if (! (h && h->root.type == bfd_link_hash_undefweak
3586 && FRVFDPIC_SYM_LOCAL (info, h)))
3587 {
3588 /* If the symbol is dynamic and there may be dynamic
3589 symbol resolution because we are or are linked with a
3590 shared library, emit a FUNCDESC relocation such that
3591 the dynamic linker will allocate the function
3592 descriptor. If the symbol needs a non-local function
3593 descriptor but binds locally (e.g., its visibility is
3594 protected, emit a dynamic relocation decayed to
3595 section+offset. */
3596 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3597 && FRVFDPIC_SYM_LOCAL (info, h)
3598 && !(info->executable && !info->pie))
3599 {
3600 dynindx = elf_section_data (h->root.u.def.section
3601 ->output_section)->dynindx;
3602 addend += h->root.u.def.section->output_offset
3603 + h->root.u.def.value;
3604 }
3605 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3606 {
3607 if (addend)
3608 {
3609 info->callbacks->warning
3610 (info, _("R_FRV_FUNCDESC references dynamic symbol with nonzero addend"),
3611 name, input_bfd, input_section, rel->r_offset);
3612 return FALSE;
3613 }
3614 dynindx = h->dynindx;
3615 }
3616 else
3617 {
3618 /* Otherwise, we know we have a private function
3619 descriptor, so reference it directly. */
3620 BFD_ASSERT (picrel->privfd);
3621 r_type = R_FRV_32;
3622 dynindx = elf_section_data (frvfdpic_got_section (info)
3623 ->output_section)->dynindx;
3624 addend = frvfdpic_got_section (info)->output_offset
3625 + frvfdpic_got_initial_offset (info)
3626 + picrel->fd_entry;
3627 }
3628
3629 /* If there is room for dynamic symbol resolution, emit
3630 the dynamic relocation. However, if we're linking an
3631 executable at a fixed location, we won't have emitted a
3632 dynamic symbol entry for the got section, so idx will
3633 be zero, which means we can and should compute the
3634 address of the private descriptor ourselves. */
3635 if (info->executable && !info->pie
3636 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3637 {
3638 addend += frvfdpic_got_section (info)->output_section->vma;
3639 if ((bfd_get_section_flags (output_bfd,
3640 input_section->output_section)
3641 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3642 {
3643 if (_frvfdpic_osec_readonly_p (output_bfd,
3644 input_section
3645 ->output_section))
3646 {
3647 info->callbacks->warning
3648 (info,
3649 _("cannot emit fixups in read-only section"),
3650 name, input_bfd, input_section, rel->r_offset);
3651 return FALSE;
3652 }
3653 _frvfdpic_add_rofixup (output_bfd,
3654 frvfdpic_gotfixup_section
3655 (info),
3656 _bfd_elf_section_offset
3657 (output_bfd, info,
3658 input_section, rel->r_offset)
3659 + input_section
3660 ->output_section->vma
3661 + input_section->output_offset,
3662 picrel);
3663 }
3664 }
3665 else if ((bfd_get_section_flags (output_bfd,
3666 input_section->output_section)
3667 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3668 {
3669 if (_frvfdpic_osec_readonly_p (output_bfd,
3670 input_section
3671 ->output_section))
3672 {
3673 info->callbacks->warning
3674 (info,
3675 _("cannot emit dynamic relocations in read-only section"),
3676 name, input_bfd, input_section, rel->r_offset);
3677 return FALSE;
3678 }
3679 _frvfdpic_add_dyn_reloc (output_bfd,
3680 frvfdpic_gotrel_section (info),
3681 _bfd_elf_section_offset
3682 (output_bfd, info,
3683 input_section, rel->r_offset)
3684 + input_section
3685 ->output_section->vma
3686 + input_section->output_offset,
3687 r_type, dynindx, addend, picrel);
3688 }
3689 else
3690 addend += frvfdpic_got_section (info)->output_section->vma;
3691 }
3692
3693 /* We want the addend in-place because dynamic
3694 relocations are REL. Setting relocation to it should
3695 arrange for it to be installed. */
3696 relocation = addend - rel->r_addend;
3697 }
3698 check_segment[0] = check_segment[1] = got_segment;
3699 break;
3700
3701 case R_FRV_32:
3702 if (! IS_FDPIC (output_bfd))
3703 {
3704 check_segment[0] = check_segment[1] = -1;
3705 break;
3706 }
3707 /* Fall through. */
3708 case R_FRV_FUNCDESC_VALUE:
3709 {
3710 int dynindx;
3711 bfd_vma addend = rel->r_addend;
3712
3713 /* If the symbol is dynamic but binds locally, use
3714 section+offset. */
3715 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3716 {
3717 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3718 {
3719 info->callbacks->warning
3720 (info, _("R_FRV_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
3721 name, input_bfd, input_section, rel->r_offset);
3722 return FALSE;
3723 }
3724 dynindx = h->dynindx;
3725 }
3726 else
3727 {
3728 if (h)
3729 addend += h->root.u.def.value;
3730 else
3731 addend += sym->st_value;
3732 if (osec)
3733 addend += osec->output_offset;
3734 if (osec && osec->output_section
3735 && ! bfd_is_abs_section (osec->output_section)
3736 && ! bfd_is_und_section (osec->output_section))
3737 dynindx = elf_section_data (osec->output_section)->dynindx;
3738 else
3739 dynindx = 0;
3740 }
3741
3742 /* If we're linking an executable at a fixed address, we
3743 can omit the dynamic relocation as long as the symbol
3744 is defined in the current link unit (which is implied
3745 by its output section not being NULL). */
3746 if (info->executable && !info->pie
3747 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3748 {
3749 if (osec)
3750 addend += osec->output_section->vma;
3751 if (IS_FDPIC (input_bfd)
3752 && (bfd_get_section_flags (output_bfd,
3753 input_section->output_section)
3754 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3755 {
3756 if (_frvfdpic_osec_readonly_p (output_bfd,
3757 input_section
3758 ->output_section))
3759 {
3760 info->callbacks->warning
3761 (info,
3762 _("cannot emit fixups in read-only section"),
3763 name, input_bfd, input_section, rel->r_offset);
3764 return FALSE;
3765 }
3766 if (!h || h->root.type != bfd_link_hash_undefweak)
3767 {
3768 _frvfdpic_add_rofixup (output_bfd,
3769 frvfdpic_gotfixup_section
3770 (info),
3771 _bfd_elf_section_offset
3772 (output_bfd, info,
3773 input_section, rel->r_offset)
3774 + input_section
3775 ->output_section->vma
3776 + input_section->output_offset,
3777 picrel);
3778 if (r_type == R_FRV_FUNCDESC_VALUE)
3779 _frvfdpic_add_rofixup
3780 (output_bfd,
3781 frvfdpic_gotfixup_section (info),
3782 _bfd_elf_section_offset
3783 (output_bfd, info,
3784 input_section, rel->r_offset)
3785 + input_section->output_section->vma
3786 + input_section->output_offset + 4, picrel);
3787 }
3788 }
3789 }
3790 else
3791 {
3792 if ((bfd_get_section_flags (output_bfd,
3793 input_section->output_section)
3794 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3795 {
3796 if (_frvfdpic_osec_readonly_p (output_bfd,
3797 input_section
3798 ->output_section))
3799 {
3800 info->callbacks->warning
3801 (info,
3802 _("cannot emit dynamic relocations in read-only section"),
3803 name, input_bfd, input_section, rel->r_offset);
3804 return FALSE;
3805 }
3806 _frvfdpic_add_dyn_reloc (output_bfd,
3807 frvfdpic_gotrel_section (info),
3808 _bfd_elf_section_offset
3809 (output_bfd, info,
3810 input_section, rel->r_offset)
3811 + input_section
3812 ->output_section->vma
3813 + input_section->output_offset,
3814 r_type, dynindx, addend, picrel);
3815 }
3816 else if (osec)
3817 addend += osec->output_section->vma;
3818 /* We want the addend in-place because dynamic
3819 relocations are REL. Setting relocation to it
3820 should arrange for it to be installed. */
3821 relocation = addend - rel->r_addend;
3822 }
3823
3824 if (r_type == R_FRV_FUNCDESC_VALUE)
3825 {
3826 /* If we've omitted the dynamic relocation, just emit
3827 the fixed addresses of the symbol and of the local
3828 GOT base offset. */
3829 if (info->executable && !info->pie
3830 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3831 bfd_put_32 (output_bfd,
3832 frvfdpic_got_section (info)->output_section->vma
3833 + frvfdpic_got_section (info)->output_offset
3834 + frvfdpic_got_initial_offset (info),
3835 contents + rel->r_offset + 4);
3836 else
3837 /* A function descriptor used for lazy or local
3838 resolving is initialized such that its high word
3839 contains the output section index in which the
3840 PLT entries are located, and the low word
3841 contains the offset of the lazy PLT entry entry
3842 point into that section. */
3843 bfd_put_32 (output_bfd,
3844 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3845 ? 0
3846 : _frvfdpic_osec_to_segment (output_bfd,
3847 sec
3848 ->output_section),
3849 contents + rel->r_offset + 4);
3850 }
3851 }
3852 check_segment[0] = check_segment[1] = got_segment;
3853 break;
3854
3855 case R_FRV_GPREL12:
3856 case R_FRV_GPRELU12:
3857 case R_FRV_GPREL32:
3858 case R_FRV_GPRELHI:
3859 case R_FRV_GPRELLO:
3860 check_segment[0] = gprel_segment;
3861 check_segment[1] = sec
3862 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3863 : (unsigned)-1;
3864 break;
3865
3866 case R_FRV_GETTLSOFF:
3867 relocation = frvfdpic_plt_section (info)->output_section->vma
3868 + frvfdpic_plt_section (info)->output_offset
3869 + picrel->tlsplt_entry;
3870 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3871 && picrel->tlsdesc_entry);
3872 check_segment[0] = isec_segment;
3873 check_segment[1] = plt_segment;
3874 break;
3875
3876 case R_FRV_GOTTLSDESC12:
3877 case R_FRV_GOTTLSDESCHI:
3878 case R_FRV_GOTTLSDESCLO:
3879 BFD_ASSERT (picrel->tlsdesc_entry);
3880 relocation = picrel->tlsdesc_entry;
3881 check_segment[0] = tls_segment;
3882 check_segment[1] = sec
3883 && ! bfd_is_abs_section (sec)
3884 && ! bfd_is_und_section (sec)
3885 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3886 : tls_segment;
3887 break;
3888
3889 case R_FRV_TLSMOFF12:
3890 case R_FRV_TLSMOFFHI:
3891 case R_FRV_TLSMOFFLO:
3892 case R_FRV_TLSMOFF:
3893 check_segment[0] = tls_segment;
3894 if (! sec)
3895 check_segment[1] = -1;
3896 else if (bfd_is_abs_section (sec)
3897 || bfd_is_und_section (sec))
3898 {
3899 relocation = 0;
3900 check_segment[1] = tls_segment;
3901 }
3902 else if (sec->output_section)
3903 {
3904 relocation -= tls_biased_base (info);
3905 check_segment[1] =
3906 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3907 }
3908 break;
3909
3910 case R_FRV_GOTTLSOFF12:
3911 case R_FRV_GOTTLSOFFHI:
3912 case R_FRV_GOTTLSOFFLO:
3913 BFD_ASSERT (picrel->tlsoff_entry);
3914 relocation = picrel->tlsoff_entry;
3915 check_segment[0] = tls_segment;
3916 check_segment[1] = sec
3917 && ! bfd_is_abs_section (sec)
3918 && ! bfd_is_und_section (sec)
3919 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3920 : tls_segment;
3921 break;
3922
3923 case R_FRV_TLSDESC_VALUE:
3924 case R_FRV_TLSOFF:
3925 /* These shouldn't be present in input object files. */
3926 check_segment[0] = check_segment[1] = isec_segment;
3927 break;
3928
3929 case R_FRV_TLSDESC_RELAX:
3930 case R_FRV_GETTLSOFF_RELAX:
3931 case R_FRV_TLSOFF_RELAX:
3932 /* These are just annotations for relaxation, nothing to do
3933 here. */
3934 continue;
3935
3936 default:
3937 check_segment[0] = isec_segment;
3938 check_segment[1] = sec
3939 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3940 : (unsigned)-1;
3941 break;
3942 }
3943
3944 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3945 {
3946 /* If you take this out, remove the #error from fdpic-static-6.d
3947 in the ld testsuite. */
3948 /* This helps catch problems in GCC while we can't do more
3949 than static linking. The idea is to test whether the
3950 input file basename is crt0.o only once. */
3951 if (silence_segment_error == 1)
3952 silence_segment_error =
3953 (strlen (input_bfd->filename) == 6
3954 && strcmp (input_bfd->filename, "crt0.o") == 0)
3955 || (strlen (input_bfd->filename) > 6
3956 && strcmp (input_bfd->filename
3957 + strlen (input_bfd->filename) - 7,
3958 "/crt0.o") == 0)
3959 ? -1 : 0;
3960 if (!silence_segment_error
3961 /* We don't want duplicate errors for undefined
3962 symbols. */
3963 && !(picrel && picrel->symndx == -1
3964 && picrel->d.h->root.type == bfd_link_hash_undefined))
3965 info->callbacks->warning
3966 (info,
3967 (info->shared || info->pie)
3968 ? _("relocations between different segments are not supported")
3969 : _("warning: relocation references a different segment"),
3970 name, input_bfd, input_section, rel->r_offset);
3971 if (!silence_segment_error && (info->shared || info->pie))
3972 return FALSE;
3973 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3974 }
3975
3976 switch (r_type)
3977 {
3978 case R_FRV_GOTOFFHI:
3979 case R_FRV_TLSMOFFHI:
3980 /* We need the addend to be applied before we shift the
3981 value right. */
3982 relocation += rel->r_addend;
3983 /* Fall through. */
3984 case R_FRV_GOTHI:
3985 case R_FRV_FUNCDESC_GOTHI:
3986 case R_FRV_FUNCDESC_GOTOFFHI:
3987 case R_FRV_GOTTLSOFFHI:
3988 case R_FRV_GOTTLSDESCHI:
3989 relocation >>= 16;
3990 /* Fall through. */
3991
3992 case R_FRV_GOTLO:
3993 case R_FRV_FUNCDESC_GOTLO:
3994 case R_FRV_GOTOFFLO:
3995 case R_FRV_FUNCDESC_GOTOFFLO:
3996 case R_FRV_GOTTLSOFFLO:
3997 case R_FRV_GOTTLSDESCLO:
3998 case R_FRV_TLSMOFFLO:
3999 relocation &= 0xffff;
4000 break;
4001
4002 default:
4003 break;
4004 }
4005
4006 switch (r_type)
4007 {
4008 case R_FRV_LABEL24:
4009 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
4010 break;
4011 /* Fall through. */
4012
4013 /* When referencing a GOT entry, a function descriptor or a
4014 PLT, we don't want the addend to apply to the reference,
4015 but rather to the referenced symbol. The actual entry
4016 will have already been created taking the addend into
4017 account, so cancel it out here. */
4018 case R_FRV_GOT12:
4019 case R_FRV_GOTHI:
4020 case R_FRV_GOTLO:
4021 case R_FRV_FUNCDESC_GOT12:
4022 case R_FRV_FUNCDESC_GOTHI:
4023 case R_FRV_FUNCDESC_GOTLO:
4024 case R_FRV_FUNCDESC_GOTOFF12:
4025 case R_FRV_FUNCDESC_GOTOFFHI:
4026 case R_FRV_FUNCDESC_GOTOFFLO:
4027 case R_FRV_GETTLSOFF:
4028 case R_FRV_GOTTLSDESC12:
4029 case R_FRV_GOTTLSDESCHI:
4030 case R_FRV_GOTTLSDESCLO:
4031 case R_FRV_GOTTLSOFF12:
4032 case R_FRV_GOTTLSOFFHI:
4033 case R_FRV_GOTTLSOFFLO:
4034 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
4035 here, since we do want to apply the addend to the others.
4036 Note that we've applied the addend to GOTOFFHI before we
4037 shifted it right. */
4038 case R_FRV_GOTOFFHI:
4039 case R_FRV_TLSMOFFHI:
4040 relocation -= rel->r_addend;
4041 break;
4042
4043 default:
4044 break;
4045 }
4046
4047 if (r_type == R_FRV_HI16)
4048 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
4049
4050 else if (r_type == R_FRV_LO16)
4051 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
4052
4053 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4054 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4055 contents, relocation);
4056
4057 else if (r_type == R_FRV_GPREL12)
4058 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4059 contents, relocation);
4060
4061 else if (r_type == R_FRV_GPRELU12)
4062 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4063 contents, relocation);
4064
4065 else if (r_type == R_FRV_GPRELLO)
4066 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4067 contents, relocation);
4068
4069 else if (r_type == R_FRV_GPRELHI)
4070 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4071 contents, relocation);
4072
4073 else if (r_type == R_FRV_TLSOFF
4074 || r_type == R_FRV_TLSDESC_VALUE)
4075 r = bfd_reloc_notsupported;
4076
4077 else
4078 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4079 rel, relocation);
4080
4081 if (r != bfd_reloc_ok)
4082 {
4083 const char * msg = (const char *) NULL;
4084
4085 switch (r)
4086 {
4087 case bfd_reloc_overflow:
4088 r = info->callbacks->reloc_overflow
4089 (info, (h ? &h->root : NULL), name, howto->name,
4090 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4091 break;
4092
4093 case bfd_reloc_undefined:
4094 r = info->callbacks->undefined_symbol
4095 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4096 break;
4097
4098 case bfd_reloc_outofrange:
4099 msg = _("internal error: out of range error");
4100 break;
4101
4102 case bfd_reloc_notsupported:
4103 msg = _("internal error: unsupported relocation error");
4104 break;
4105
4106 case bfd_reloc_dangerous:
4107 msg = _("internal error: dangerous relocation");
4108 break;
4109
4110 default:
4111 msg = _("internal error: unknown error");
4112 break;
4113 }
4114
4115 if (msg)
4116 r = info->callbacks->warning
4117 (info, msg, name, input_bfd, input_section, rel->r_offset);
4118
4119 if (! r)
4120 return FALSE;
4121 }
4122 }
4123
4124 return TRUE;
4125 }
4126 \f
4127 /* Return the section that should be marked against GC for a given
4128 relocation. */
4129
4130 static asection *
4131 elf32_frv_gc_mark_hook (sec, info, rel, h, sym)
4132 asection *sec;
4133 struct bfd_link_info *info ATTRIBUTE_UNUSED;
4134 Elf_Internal_Rela *rel;
4135 struct elf_link_hash_entry *h;
4136 Elf_Internal_Sym *sym;
4137 {
4138 if (h != NULL)
4139 {
4140 switch (ELF32_R_TYPE (rel->r_info))
4141 {
4142 case R_FRV_GNU_VTINHERIT:
4143 case R_FRV_GNU_VTENTRY:
4144 break;
4145
4146 default:
4147 switch (h->root.type)
4148 {
4149 default:
4150 break;
4151
4152 case bfd_link_hash_defined:
4153 case bfd_link_hash_defweak:
4154 return h->root.u.def.section;
4155
4156 case bfd_link_hash_common:
4157 return h->root.u.c.p->section;
4158 }
4159 }
4160 }
4161 else
4162 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
4163
4164 return NULL;
4165 }
4166
4167 /* Update the got entry reference counts for the section being removed. */
4168
4169 static bfd_boolean
4170 elf32_frv_gc_sweep_hook (abfd, info, sec, relocs)
4171 bfd *abfd ATTRIBUTE_UNUSED;
4172 struct bfd_link_info *info ATTRIBUTE_UNUSED;
4173 asection *sec ATTRIBUTE_UNUSED;
4174 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
4175 {
4176 return TRUE;
4177 }
4178
4179 \f
4180 /* Hook called by the linker routine which adds symbols from an object
4181 file. We use it to put .comm items in .scomm, and not .comm. */
4182
4183 static bfd_boolean
4184 elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
4185 bfd *abfd;
4186 struct bfd_link_info *info;
4187 Elf_Internal_Sym *sym;
4188 const char **namep ATTRIBUTE_UNUSED;
4189 flagword *flagsp ATTRIBUTE_UNUSED;
4190 asection **secp;
4191 bfd_vma *valp;
4192 {
4193 if (sym->st_shndx == SHN_COMMON
4194 && !info->relocatable
4195 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4196 {
4197 /* Common symbols less than or equal to -G nn bytes are
4198 automatically put into .sbss. */
4199
4200 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4201
4202 if (scomm == NULL)
4203 {
4204 scomm = bfd_make_section (abfd, ".scommon");
4205 if (scomm == NULL
4206 || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC
4207 | SEC_IS_COMMON
4208 | SEC_LINKER_CREATED)))
4209 return FALSE;
4210 }
4211
4212 *secp = scomm;
4213 *valp = sym->st_size;
4214 }
4215
4216 return TRUE;
4217 }
4218
4219 /* We need dynamic symbols for every section, since segments can
4220 relocate independently. */
4221 static bfd_boolean
4222 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4223 struct bfd_link_info *info
4224 ATTRIBUTE_UNUSED,
4225 asection *p ATTRIBUTE_UNUSED)
4226 {
4227 switch (elf_section_data (p)->this_hdr.sh_type)
4228 {
4229 case SHT_PROGBITS:
4230 case SHT_NOBITS:
4231 /* If sh_type is yet undecided, assume it could be
4232 SHT_PROGBITS/SHT_NOBITS. */
4233 case SHT_NULL:
4234 return FALSE;
4235
4236 /* There shouldn't be section relative relocations
4237 against any other section. */
4238 default:
4239 return TRUE;
4240 }
4241 }
4242
4243 /* Create a .got section, as well as its additional info field. This
4244 is almost entirely copied from
4245 elflink.c:_bfd_elf_create_got_section(). */
4246
4247 static bfd_boolean
4248 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4249 {
4250 flagword flags, pltflags;
4251 asection *s;
4252 struct elf_link_hash_entry *h;
4253 struct bfd_link_hash_entry *bh;
4254 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4255 int ptralign;
4256 int offset;
4257
4258 /* This function may be called more than once. */
4259 s = bfd_get_section_by_name (abfd, ".got");
4260 if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
4261 return TRUE;
4262
4263 /* Machine specific: although pointers are 32-bits wide, we want the
4264 GOT to be aligned to a 64-bit boundary, such that function
4265 descriptors in it can be accessed with 64-bit loads and
4266 stores. */
4267 ptralign = 3;
4268
4269 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4270 | SEC_LINKER_CREATED);
4271 pltflags = flags;
4272
4273 s = bfd_make_section (abfd, ".got");
4274 if (s == NULL
4275 || !bfd_set_section_flags (abfd, s, flags)
4276 || !bfd_set_section_alignment (abfd, s, ptralign))
4277 return FALSE;
4278
4279 if (bed->want_got_plt)
4280 {
4281 s = bfd_make_section (abfd, ".got.plt");
4282 if (s == NULL
4283 || !bfd_set_section_flags (abfd, s, flags)
4284 || !bfd_set_section_alignment (abfd, s, ptralign))
4285 return FALSE;
4286 }
4287
4288 if (bed->want_got_sym)
4289 {
4290 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4291 (or .got.plt) section. We don't do this in the linker script
4292 because we don't want to define the symbol if we are not creating
4293 a global offset table. */
4294 bh = NULL;
4295 if (!(_bfd_generic_link_add_one_symbol
4296 (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
4297 bed->got_symbol_offset, (const char *) NULL, FALSE,
4298 bed->collect, &bh)))
4299 return FALSE;
4300 h = (struct elf_link_hash_entry *) bh;
4301 h->def_regular = 1;
4302 h->type = STT_OBJECT;
4303 /* h->other = STV_HIDDEN; */ /* Should we? */
4304
4305 /* Machine-specific: we want the symbol for executables as
4306 well. */
4307 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4308 return FALSE;
4309
4310 elf_hash_table (info)->hgot = h;
4311 }
4312
4313 /* The first bit of the global offset table is the header. */
4314 s->size += bed->got_header_size + bed->got_symbol_offset;
4315
4316 /* This is the machine-specific part. Create and initialize section
4317 data for the got. */
4318 if (IS_FDPIC (abfd))
4319 {
4320 frvfdpic_got_section (info) = s;
4321 frvfdpic_relocs_info (info) = htab_try_create (1,
4322 frvfdpic_relocs_info_hash,
4323 frvfdpic_relocs_info_eq,
4324 (htab_del) NULL);
4325 if (! frvfdpic_relocs_info (info))
4326 return FALSE;
4327
4328 s = bfd_make_section (abfd, ".rel.got");
4329 if (s == NULL
4330 || ! bfd_set_section_flags (abfd, s, (flags | SEC_READONLY))
4331 || ! bfd_set_section_alignment (abfd, s, 2))
4332 return FALSE;
4333
4334 frvfdpic_gotrel_section (info) = s;
4335
4336 /* Machine-specific. */
4337 s = bfd_make_section (abfd, ".rofixup");
4338 if (s == NULL
4339 || ! bfd_set_section_flags (abfd, s, (flags | SEC_READONLY))
4340 || ! bfd_set_section_alignment (abfd, s, 2))
4341 return FALSE;
4342
4343 frvfdpic_gotfixup_section (info) = s;
4344 offset = -2048;
4345 flags = BSF_GLOBAL;
4346 }
4347 else
4348 {
4349 offset = 2048;
4350 flags = BSF_GLOBAL | BSF_WEAK;
4351 }
4352
4353 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
4354 turns out that we're linking with a different linker script, the
4355 linker script will override it. */
4356 bh = NULL;
4357 if (!(_bfd_generic_link_add_one_symbol
4358 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4359 bed->collect, &bh)))
4360 return FALSE;
4361 h = (struct elf_link_hash_entry *) bh;
4362 h->def_regular = 1;
4363 h->type = STT_OBJECT;
4364 /* h->other = STV_HIDDEN; */ /* Should we? */
4365
4366 /* Machine-specific: we want the symbol for executables as well. */
4367 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4368 return FALSE;
4369
4370 if (!IS_FDPIC (abfd))
4371 return TRUE;
4372
4373 /* FDPIC supports Thread Local Storage, and this may require a
4374 procedure linkage table for TLS PLT entries. */
4375
4376 /* This is mostly copied from
4377 elflink.c:_bfd_elf_create_dynamic_sections(). */
4378
4379 flags = pltflags;
4380 pltflags |= SEC_CODE;
4381 if (bed->plt_not_loaded)
4382 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4383 if (bed->plt_readonly)
4384 pltflags |= SEC_READONLY;
4385
4386 s = bfd_make_section (abfd, ".plt");
4387 if (s == NULL
4388 || ! bfd_set_section_flags (abfd, s, pltflags)
4389 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4390 return FALSE;
4391 /* FRV-specific: remember it. */
4392 frvfdpic_plt_section (info) = s;
4393
4394 if (bed->want_plt_sym)
4395 {
4396 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4397 .plt section. */
4398 struct elf_link_hash_entry *h;
4399 struct bfd_link_hash_entry *bh = NULL;
4400
4401 if (! (_bfd_generic_link_add_one_symbol
4402 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL,
4403 FALSE, get_elf_backend_data (abfd)->collect, &bh)))
4404 return FALSE;
4405 h = (struct elf_link_hash_entry *) bh;
4406 h->def_regular = 1;
4407 h->type = STT_OBJECT;
4408 /* h->other = STV_HIDDEN; */ /* Should we? */
4409
4410 if (! info->executable
4411 && ! bfd_elf_link_record_dynamic_symbol (info, h))
4412 return FALSE;
4413 }
4414
4415 /* FRV-specific: we want rel relocations for the plt. */
4416 s = bfd_make_section (abfd, ".rel.plt");
4417 if (s == NULL
4418 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
4419 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4420 return FALSE;
4421 /* FRV-specific: remember it. */
4422 frvfdpic_pltrel_section (info) = s;
4423
4424 return TRUE;
4425 }
4426
4427 /* Make sure the got and plt sections exist, and that our pointers in
4428 the link hash table point to them. */
4429
4430 static bfd_boolean
4431 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4432 {
4433 /* This is mostly copied from
4434 elflink.c:_bfd_elf_create_dynamic_sections(). */
4435 flagword flags;
4436 asection *s;
4437 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4438
4439 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4440 | SEC_LINKER_CREATED);
4441
4442 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4443 .rel[a].bss sections. */
4444
4445 /* FRV-specific: we want to create the GOT and the PLT in the FRV
4446 way. */
4447 if (! _frv_create_got_section (abfd, info))
4448 return FALSE;
4449
4450 /* FRV-specific: make sure we created everything we wanted. */
4451 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4452 && frvfdpic_gotfixup_section (info)
4453 && frvfdpic_plt_section (info)
4454 && frvfdpic_pltrel_section (info));
4455
4456 if (bed->want_dynbss)
4457 {
4458 /* The .dynbss section is a place to put symbols which are defined
4459 by dynamic objects, are referenced by regular objects, and are
4460 not functions. We must allocate space for them in the process
4461 image and use a R_*_COPY reloc to tell the dynamic linker to
4462 initialize them at run time. The linker script puts the .dynbss
4463 section into the .bss section of the final image. */
4464 s = bfd_make_section (abfd, ".dynbss");
4465 if (s == NULL
4466 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC | SEC_LINKER_CREATED))
4467 return FALSE;
4468
4469 /* The .rel[a].bss section holds copy relocs. This section is not
4470 normally needed. We need to create it here, though, so that the
4471 linker will map it to an output section. We can't just create it
4472 only if we need it, because we will not know whether we need it
4473 until we have seen all the input files, and the first time the
4474 main linker code calls BFD after examining all the input files
4475 (size_dynamic_sections) the input sections have already been
4476 mapped to the output sections. If the section turns out not to
4477 be needed, we can discard it later. We will never need this
4478 section when generating a shared object, since they do not use
4479 copy relocs. */
4480 if (! info->shared)
4481 {
4482 s = bfd_make_section (abfd,
4483 (bed->default_use_rela_p
4484 ? ".rela.bss" : ".rel.bss"));
4485 if (s == NULL
4486 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
4487 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4488 return FALSE;
4489 }
4490 }
4491
4492 return TRUE;
4493 }
4494
4495 /* Compute the total GOT and PLT size required by each symbol in each
4496 range. Symbols may require up to 4 words in the GOT: an entry
4497 pointing to the symbol, an entry pointing to its function
4498 descriptor, and a private function descriptors taking two
4499 words. */
4500
4501 static void
4502 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4503 struct _frvfdpic_dynamic_got_info *dinfo)
4504 {
4505 /* Allocate space for a GOT entry pointing to the symbol. */
4506 if (entry->got12)
4507 dinfo->got12 += 4;
4508 else if (entry->gotlos)
4509 dinfo->gotlos += 4;
4510 else if (entry->gothilo)
4511 dinfo->gothilo += 4;
4512 else
4513 entry->relocs32--;
4514 entry->relocs32++;
4515
4516 /* Allocate space for a GOT entry pointing to the function
4517 descriptor. */
4518 if (entry->fdgot12)
4519 dinfo->got12 += 4;
4520 else if (entry->fdgotlos)
4521 dinfo->gotlos += 4;
4522 else if (entry->fdgothilo)
4523 dinfo->gothilo += 4;
4524 else
4525 entry->relocsfd--;
4526 entry->relocsfd++;
4527
4528 /* Decide whether we need a PLT entry, a function descriptor in the
4529 GOT, and a lazy PLT entry for this symbol. */
4530 entry->plt = entry->call
4531 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4532 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4533 entry->privfd = entry->plt
4534 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4535 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4536 && (entry->symndx != -1
4537 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4538 entry->lazyplt = entry->privfd
4539 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4540 && ! (dinfo->info->flags & DF_BIND_NOW)
4541 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4542
4543 /* Allocate space for a function descriptor. */
4544 if (entry->fdgoff12)
4545 dinfo->fd12 += 8;
4546 else if (entry->fdgofflos)
4547 dinfo->fdlos += 8;
4548 else if (entry->privfd && entry->plt)
4549 dinfo->fdplt += 8;
4550 else if (entry->privfd)
4551 dinfo->fdhilo += 8;
4552 else
4553 entry->relocsfdv--;
4554 entry->relocsfdv++;
4555
4556 if (entry->lazyplt)
4557 dinfo->lzplt += 8;
4558 }
4559
4560 /* Compute the total GOT size required by each TLS symbol in each
4561 range. Symbols may require up to 5 words in the GOT: an entry
4562 holding the TLS offset for the symbol, and an entry with a full TLS
4563 descriptor taking 4 words. */
4564
4565 static void
4566 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4567 struct _frvfdpic_dynamic_got_info *dinfo,
4568 bfd_boolean subtract)
4569 {
4570 const int l = subtract ? -1 : 1;
4571
4572 /* Allocate space for a GOT entry with the TLS offset of the
4573 symbol. */
4574 if (entry->tlsoff12)
4575 dinfo->got12 += 4 * l;
4576 else if (entry->tlsofflos)
4577 dinfo->gotlos += 4 * l;
4578 else if (entry->tlsoffhilo)
4579 dinfo->gothilo += 4 * l;
4580 else
4581 entry->relocstlsoff -= l;
4582 entry->relocstlsoff += l;
4583
4584 /* If there's any TLSOFF relocation, mark the output file as not
4585 suitable for dlopening. This mark will remain even if we relax
4586 all such relocations, but this is not a problem, since we'll only
4587 do so for executables, and we definitely don't want anyone
4588 dlopening executables. */
4589 if (entry->relocstlsoff)
4590 dinfo->info->flags |= DF_STATIC_TLS;
4591
4592 /* Allocate space for a TLS descriptor. */
4593 if (entry->tlsdesc12)
4594 dinfo->tlsd12 += 8 * l;
4595 else if (entry->tlsdesclos)
4596 dinfo->tlsdlos += 8 * l;
4597 else if (entry->tlsplt)
4598 dinfo->tlsdplt += 8 * l;
4599 else if (entry->tlsdeschilo)
4600 dinfo->tlsdhilo += 8 * l;
4601 else
4602 entry->relocstlsd -= l;
4603 entry->relocstlsd += l;
4604 }
4605
4606 /* Compute the number of dynamic relocations and fixups that a symbol
4607 requires, and add (or subtract) from the grand and per-symbol
4608 totals. */
4609
4610 static void
4611 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4612 struct _frvfdpic_dynamic_got_info *dinfo,
4613 bfd_boolean subtract)
4614 {
4615 bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4616
4617 if (!dinfo->info->executable || dinfo->info->pie)
4618 {
4619 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4620 + entry->relocstlsd;
4621
4622 /* In the executable, TLS relocations to symbols that bind
4623 locally (including those that resolve to global TLS offsets)
4624 are resolved immediately, without any need for fixups or
4625 dynamic relocations. In shared libraries, however, we must
4626 emit dynamic relocations even for local symbols, because we
4627 don't know the module id the library is going to get at
4628 run-time, nor its TLS base offset. */
4629 if (!dinfo->info->executable
4630 || (entry->symndx == -1
4631 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4632 relocs += entry->relocstlsoff;
4633 }
4634 else
4635 {
4636 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4637 {
4638 if (entry->symndx != -1
4639 || entry->d.h->root.type != bfd_link_hash_undefweak)
4640 fixups += entry->relocs32 + 2 * entry->relocsfdv;
4641 fixups += entry->relocstlsd;
4642 tlsrets += entry->relocstlsd;
4643 }
4644 else
4645 {
4646 relocs += entry->relocs32 + entry->relocsfdv
4647 + entry->relocstlsoff + entry->relocstlsd;
4648 }
4649
4650 if (entry->symndx != -1
4651 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4652 {
4653 if (entry->symndx != -1
4654 || entry->d.h->root.type != bfd_link_hash_undefweak)
4655 fixups += entry->relocsfd;
4656 }
4657 else
4658 relocs += entry->relocsfd;
4659 }
4660
4661 if (subtract)
4662 {
4663 relocs = - relocs;
4664 fixups = - fixups;
4665 tlsrets = - tlsrets;
4666 }
4667
4668 entry->dynrelocs += relocs;
4669 entry->fixups += fixups;
4670 dinfo->relocs += relocs;
4671 dinfo->fixups += fixups;
4672 dinfo->tls_ret_refs += tlsrets;
4673 }
4674
4675 /* Look for opportunities to relax TLS relocations. We can assume
4676 we're linking the main executable or a static-tls library, since
4677 otherwise we wouldn't have got here. When relaxing, we have to
4678 first undo any previous accounting of TLS uses of fixups, dynamic
4679 relocations, GOT and PLT entries. */
4680
4681 static void
4682 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4683 struct _frvfdpic_dynamic_got_info *dinfo,
4684 bfd_boolean relaxing)
4685 {
4686 bfd_boolean changed = ! relaxing;
4687
4688 BFD_ASSERT (dinfo->info->executable
4689 || (dinfo->info->flags & DF_STATIC_TLS));
4690
4691 if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4692 {
4693 if (! changed)
4694 {
4695 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4696 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4697 changed = TRUE;
4698 }
4699
4700 /* When linking an executable, we can always decay GOTTLSDESC to
4701 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4702 When linking a static-tls shared library, using TLSMOFF is
4703 not an option, but we can still use GOTTLSOFF. When decaying
4704 to GOTTLSOFF, we must keep the GOT entry in range. We know
4705 it has to fit because we'll be trading the 4 words of hte TLS
4706 descriptor for a single word in the same range. */
4707 if (! dinfo->info->executable
4708 || (entry->symndx == -1
4709 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4710 {
4711 entry->tlsoff12 |= entry->tlsdesc12;
4712 entry->tlsofflos |= entry->tlsdesclos;
4713 entry->tlsoffhilo |= entry->tlsdeschilo;
4714 }
4715
4716 entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4717 }
4718
4719 /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4720 main executable. We have to check whether the symbol's TLSOFF is
4721 in range for a setlos. For symbols with a hash entry, we can
4722 determine exactly what to do; for others locals, we don't have
4723 addresses handy, so we use the size of the TLS section as an
4724 approximation. If we get it wrong, we'll retain a GOT entry
4725 holding the TLS offset (without dynamic relocations or fixups),
4726 but we'll still optimize away the loads from it. Since TLS sizes
4727 are generally very small, it's probably not worth attempting to
4728 do better than this. */
4729 if ((entry->tlsplt
4730 || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4731 && dinfo->info->executable && relaxing
4732 && ((entry->symndx == -1
4733 && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4734 /* The above may hold for an undefweak TLS symbol, so make
4735 sure we don't have this case before accessing def.value
4736 and def.section. */
4737 && (entry->d.h->root.type == bfd_link_hash_undefweak
4738 || (bfd_vma)(entry->d.h->root.u.def.value
4739 + (entry->d.h->root.u.def.section
4740 ->output_section->vma)
4741 + entry->d.h->root.u.def.section->output_offset
4742 + entry->addend
4743 - tls_biased_base (dinfo->info)
4744 + 32768) < (bfd_vma)65536))
4745 || (entry->symndx != -1
4746 && (elf_hash_table (dinfo->info)->tls_sec->size
4747 + abs (entry->addend) < 32768 + FRVFDPIC_TLS_BIAS))))
4748 {
4749 if (! changed)
4750 {
4751 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4752 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4753 changed = TRUE;
4754 }
4755
4756 entry->tlsplt =
4757 entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4758 }
4759
4760 /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4761 have a #gottlsoff12 relocation for this entry, or if we can fit
4762 one more in the 12-bit (and 16-bit) ranges. */
4763 if (entry->tlsplt
4764 && (entry->tlsoff12
4765 || (relaxing
4766 && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4767 && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4768 + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4769 <= 65536 - 12 - 4))))
4770 {
4771 if (! changed)
4772 {
4773 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4774 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4775 changed = TRUE;
4776 }
4777
4778 entry->tlsoff12 = 1;
4779 entry->tlsplt = 0;
4780 }
4781
4782 if (changed)
4783 {
4784 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4785 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4786 }
4787
4788 return;
4789 }
4790
4791 /* Compute the total GOT and PLT size required by each symbol in each range. *
4792 Symbols may require up to 4 words in the GOT: an entry pointing to
4793 the symbol, an entry pointing to its function descriptor, and a
4794 private function descriptors taking two words. */
4795
4796 static int
4797 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4798 {
4799 struct frvfdpic_relocs_info *entry = *entryp;
4800 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4801
4802 _frvfdpic_count_nontls_entries (entry, dinfo);
4803
4804 if (dinfo->info->executable || (dinfo->info->flags & DF_STATIC_TLS))
4805 _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4806 else
4807 {
4808 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4809 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4810 }
4811
4812 return 1;
4813 }
4814
4815 /* Determine the positive and negative ranges to be used by each
4816 offset range in the GOT. FDCUR and CUR, that must be aligned to a
4817 double-word boundary, are the minimum (negative) and maximum
4818 (positive) GOT offsets already used by previous ranges, except for
4819 an ODD entry that may have been left behind. GOT and FD indicate
4820 the size of GOT entries and function descriptors that must be
4821 placed within the range from -WRAP to WRAP. If there's room left,
4822 up to FDPLT bytes should be reserved for additional function
4823 descriptors. */
4824
4825 inline static bfd_signed_vma
4826 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4827 bfd_signed_vma fdcur,
4828 bfd_signed_vma odd,
4829 bfd_signed_vma cur,
4830 bfd_vma got,
4831 bfd_vma fd,
4832 bfd_vma fdplt,
4833 bfd_vma tlsd,
4834 bfd_vma tlsdplt,
4835 bfd_vma wrap)
4836 {
4837 bfd_signed_vma wrapmin = -wrap;
4838 const bfd_vma tdescsz = 8;
4839
4840 /* Start at the given initial points. */
4841 gad->fdcur = fdcur;
4842 gad->cur = cur;
4843
4844 /* If we had an incoming odd word and we have any got entries that
4845 are going to use it, consume it, otherwise leave gad->odd at
4846 zero. We might force gad->odd to zero and return the incoming
4847 odd such that it is used by the next range, but then GOT entries
4848 might appear to be out of order and we wouldn't be able to
4849 shorten the GOT by one word if it turns out to end with an
4850 unpaired GOT entry. */
4851 if (odd && got)
4852 {
4853 gad->odd = odd;
4854 got -= 4;
4855 odd = 0;
4856 }
4857 else
4858 gad->odd = 0;
4859
4860 /* If we're left with an unpaired GOT entry, compute its location
4861 such that we can return it. Otherwise, if got doesn't require an
4862 odd number of words here, either odd was already zero in the
4863 block above, or it was set to zero because got was non-zero, or
4864 got was already zero. In the latter case, we want the value of
4865 odd to carry over to the return statement, so we don't want to
4866 reset odd unless the condition below is true. */
4867 if (got & 4)
4868 {
4869 odd = cur + got;
4870 got += 4;
4871 }
4872
4873 /* Compute the tentative boundaries of this range. */
4874 gad->max = cur + got;
4875 gad->min = fdcur - fd;
4876 gad->fdplt = 0;
4877
4878 /* If function descriptors took too much space, wrap some of them
4879 around. */
4880 if (gad->min < wrapmin)
4881 {
4882 gad->max += wrapmin - gad->min;
4883 gad->tmin = gad->min = wrapmin;
4884 }
4885
4886 /* If GOT entries took too much space, wrap some of them around.
4887 This may well cause gad->min to become lower than wrapmin. This
4888 will cause a relocation overflow later on, so we don't have to
4889 report it here . */
4890 if ((bfd_vma) gad->max > wrap)
4891 {
4892 gad->min -= gad->max - wrap;
4893 gad->max = wrap;
4894 }
4895
4896 /* Add TLS descriptors. */
4897 gad->tmax = gad->max + tlsd;
4898 gad->tmin = gad->min;
4899 gad->tlsdplt = 0;
4900
4901 /* If TLS descriptors took too much space, wrap an integral number
4902 of them around. */
4903 if ((bfd_vma) gad->tmax > wrap)
4904 {
4905 bfd_vma wrapsize = gad->tmax - wrap;
4906
4907 wrapsize += tdescsz / 2;
4908 wrapsize &= ~ tdescsz / 2;
4909
4910 gad->tmin -= wrapsize;
4911 gad->tmax -= wrapsize;
4912 }
4913
4914 /* If there is space left and we have function descriptors
4915 referenced in PLT entries that could take advantage of shorter
4916 offsets, place them now. */
4917 if (fdplt && gad->tmin > wrapmin)
4918 {
4919 bfd_vma fds;
4920
4921 if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4922 fds = gad->tmin - wrapmin;
4923 else
4924 fds = fdplt;
4925
4926 fdplt -= fds;
4927 gad->min -= fds;
4928 gad->tmin -= fds;
4929 gad->fdplt += fds;
4930 }
4931
4932 /* If there is more space left, try to place some more function
4933 descriptors for PLT entries. */
4934 if (fdplt && (bfd_vma) gad->tmax < wrap)
4935 {
4936 bfd_vma fds;
4937
4938 if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4939 fds = wrap - gad->tmax;
4940 else
4941 fds = fdplt;
4942
4943 fdplt -= fds;
4944 gad->max += fds;
4945 gad->tmax += fds;
4946 gad->fdplt += fds;
4947 }
4948
4949 /* If there is space left and we have TLS descriptors referenced in
4950 PLT entries that could take advantage of shorter offsets, place
4951 them now. */
4952 if (tlsdplt && gad->tmin > wrapmin)
4953 {
4954 bfd_vma tlsds;
4955
4956 if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4957 tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4958 else
4959 tlsds = tlsdplt;
4960
4961 tlsdplt -= tlsds;
4962 gad->tmin -= tlsds;
4963 gad->tlsdplt += tlsds;
4964 }
4965
4966 /* If there is more space left, try to place some more TLS
4967 descriptors for PLT entries. Although we could try to fit an
4968 additional TLS descriptor with half of it just before before the
4969 wrap point and another right past the wrap point, this might
4970 cause us to run out of space for the next region, so don't do
4971 it. */
4972 if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4973 {
4974 bfd_vma tlsds;
4975
4976 if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4977 tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4978 else
4979 tlsds = tlsdplt;
4980
4981 tlsdplt -= tlsds;
4982 gad->tmax += tlsds;
4983 gad->tlsdplt += tlsds;
4984 }
4985
4986 /* If odd was initially computed as an offset past the wrap point,
4987 wrap it around. */
4988 if (odd > gad->max)
4989 odd = gad->min + odd - gad->max;
4990
4991 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4992 before returning, so do it here too. This guarantees that,
4993 should cur and fdcur meet at the wrap point, they'll both be
4994 equal to min. */
4995 if (gad->cur == gad->max)
4996 gad->cur = gad->min;
4997
4998 /* Ditto for _frvfdpic_get_tlsdesc_entry(). */
4999 gad->tcur = gad->max;
5000 if (gad->tcur == gad->tmax)
5001 gad->tcur = gad->tmin;
5002
5003 return odd;
5004 }
5005
5006 /* Compute the location of the next GOT entry, given the allocation
5007 data for a range. */
5008
5009 inline static bfd_signed_vma
5010 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5011 {
5012 bfd_signed_vma ret;
5013
5014 if (gad->odd)
5015 {
5016 /* If there was an odd word left behind, use it. */
5017 ret = gad->odd;
5018 gad->odd = 0;
5019 }
5020 else
5021 {
5022 /* Otherwise, use the word pointed to by cur, reserve the next
5023 as an odd word, and skip to the next pair of words, possibly
5024 wrapping around. */
5025 ret = gad->cur;
5026 gad->odd = gad->cur + 4;
5027 gad->cur += 8;
5028 if (gad->cur == gad->max)
5029 gad->cur = gad->min;
5030 }
5031
5032 return ret;
5033 }
5034
5035 /* Compute the location of the next function descriptor entry in the
5036 GOT, given the allocation data for a range. */
5037
5038 inline static bfd_signed_vma
5039 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5040 {
5041 /* If we're at the bottom, wrap around, and only then allocate the
5042 next pair of words. */
5043 if (gad->fdcur == gad->min)
5044 gad->fdcur = gad->max;
5045 return gad->fdcur -= 8;
5046 }
5047
5048 /* Compute the location of the next TLS descriptor entry in the GOT,
5049 given the allocation data for a range. */
5050 inline static bfd_signed_vma
5051 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5052 {
5053 bfd_signed_vma ret;
5054
5055 ret = gad->tcur;
5056
5057 gad->tcur += 8;
5058
5059 /* If we're at the top of the region, wrap around to the bottom. */
5060 if (gad->tcur == gad->tmax)
5061 gad->tcur = gad->tmin;
5062
5063 return ret;
5064 }
5065
5066 /* Assign GOT offsets for every GOT entry and function descriptor.
5067 Doing everything in a single pass is tricky. */
5068
5069 static int
5070 _frvfdpic_assign_got_entries (void **entryp, void *info_)
5071 {
5072 struct frvfdpic_relocs_info *entry = *entryp;
5073 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5074
5075 if (entry->got12)
5076 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5077 else if (entry->gotlos)
5078 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5079 else if (entry->gothilo)
5080 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5081
5082 if (entry->fdgot12)
5083 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5084 else if (entry->fdgotlos)
5085 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5086 else if (entry->fdgothilo)
5087 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5088
5089 if (entry->fdgoff12)
5090 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5091 else if (entry->plt && dinfo->got12.fdplt)
5092 {
5093 dinfo->got12.fdplt -= 8;
5094 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5095 }
5096 else if (entry->fdgofflos)
5097 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5098 else if (entry->plt && dinfo->gotlos.fdplt)
5099 {
5100 dinfo->gotlos.fdplt -= 8;
5101 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5102 }
5103 else if (entry->plt)
5104 {
5105 dinfo->gothilo.fdplt -= 8;
5106 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5107 }
5108 else if (entry->privfd)
5109 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5110
5111 if (entry->tlsoff12)
5112 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5113 else if (entry->tlsofflos)
5114 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5115 else if (entry->tlsoffhilo)
5116 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5117
5118 if (entry->tlsdesc12)
5119 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5120 else if (entry->tlsplt && dinfo->got12.tlsdplt)
5121 {
5122 dinfo->got12.tlsdplt -= 8;
5123 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5124 }
5125 else if (entry->tlsdesclos)
5126 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5127 else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5128 {
5129 dinfo->gotlos.tlsdplt -= 8;
5130 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5131 }
5132 else if (entry->tlsplt)
5133 {
5134 dinfo->gothilo.tlsdplt -= 8;
5135 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5136 }
5137 else if (entry->tlsdeschilo)
5138 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5139
5140 return 1;
5141 }
5142
5143 /* Assign GOT offsets to private function descriptors used by PLT
5144 entries (or referenced by 32-bit offsets), as well as PLT entries
5145 and lazy PLT entries. */
5146
5147 static int
5148 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5149 {
5150 struct frvfdpic_relocs_info *entry = *entryp;
5151 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5152
5153 if (entry->privfd)
5154 BFD_ASSERT (entry->fd_entry);
5155
5156 if (entry->plt)
5157 {
5158 int size;
5159
5160 /* We use the section's raw size to mark the location of the
5161 next PLT entry. */
5162 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5163
5164 /* Figure out the length of this PLT entry based on the
5165 addressing mode we need to reach the function descriptor. */
5166 BFD_ASSERT (entry->fd_entry);
5167 if (entry->fd_entry >= -(1 << (12 - 1))
5168 && entry->fd_entry < (1 << (12 - 1)))
5169 size = 8;
5170 else if (entry->fd_entry >= -(1 << (16 - 1))
5171 && entry->fd_entry < (1 << (16 - 1)))
5172 size = 12;
5173 else
5174 size = 16;
5175
5176 frvfdpic_plt_section (dinfo->g.info)->size += size;
5177 }
5178
5179 if (entry->lazyplt)
5180 {
5181 entry->lzplt_entry = dinfo->g.lzplt;
5182 dinfo->g.lzplt += 8;
5183 /* If this entry is the one that gets the resolver stub, account
5184 for the additional instruction. */
5185 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5186 == FRVFDPIC_LZPLT_RESOLV_LOC)
5187 dinfo->g.lzplt += 4;
5188 }
5189
5190 if (entry->tlsplt)
5191 {
5192 int size;
5193
5194 entry->tlsplt_entry
5195 = frvfdpic_plt_section (dinfo->g.info)->size;
5196
5197 if (dinfo->g.info->executable
5198 && (entry->symndx != -1
5199 || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5200 {
5201 if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5202 /* FIXME: here we use the size of the TLS section
5203 as an upper bound for the value of the TLS
5204 symbol, because we may not know the exact value
5205 yet. If we get it wrong, we'll just waste a
5206 word in the PLT, and we should never get even
5207 close to 32 KiB of TLS anyway. */
5208 && elf_hash_table (dinfo->g.info)->tls_sec
5209 && (elf_hash_table (dinfo->g.info)->tls_sec->size
5210 + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5211 size = 8;
5212 else
5213 size = 12;
5214 }
5215 else if (entry->tlsoff_entry)
5216 {
5217 if (entry->tlsoff_entry >= -(1 << (12 - 1))
5218 && entry->tlsoff_entry < (1 << (12 - 1)))
5219 size = 8;
5220 else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5221 && entry->tlsoff_entry < (1 << (16 - 1)))
5222 size = 12;
5223 else
5224 size = 16;
5225 }
5226 else
5227 {
5228 BFD_ASSERT (entry->tlsdesc_entry);
5229
5230 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5231 && entry->tlsdesc_entry < (1 << (12 - 1)))
5232 size = 8;
5233 else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5234 && entry->tlsdesc_entry < (1 << (16 - 1)))
5235 size = 12;
5236 else
5237 size = 16;
5238 }
5239
5240 frvfdpic_plt_section (dinfo->g.info)->size += size;
5241 }
5242
5243 return 1;
5244 }
5245
5246 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5247 _frvfdpic_assign_plt_entries. */
5248
5249 static int
5250 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5251 {
5252 struct frvfdpic_relocs_info *entry = *entryp;
5253
5254 entry->got_entry = 0;
5255 entry->fdgot_entry = 0;
5256 entry->fd_entry = 0;
5257 entry->plt_entry = (bfd_vma)-1;
5258 entry->lzplt_entry = (bfd_vma)-1;
5259 entry->tlsoff_entry = 0;
5260 entry->tlsdesc_entry = 0;
5261 entry->tlsplt_entry = (bfd_vma)-1;
5262
5263 return 1;
5264 }
5265
5266 /* Follow indirect and warning hash entries so that each got entry
5267 points to the final symbol definition. P must point to a pointer
5268 to the hash table we're traversing. Since this traversal may
5269 modify the hash table, we set this pointer to NULL to indicate
5270 we've made a potentially-destructive change to the hash table, so
5271 the traversal must be restarted. */
5272 static int
5273 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5274 {
5275 struct frvfdpic_relocs_info *entry = *entryp;
5276 htab_t *htab = p;
5277
5278 if (entry->symndx == -1)
5279 {
5280 struct elf_link_hash_entry *h = entry->d.h;
5281 struct frvfdpic_relocs_info *oentry;
5282
5283 while (h->root.type == bfd_link_hash_indirect
5284 || h->root.type == bfd_link_hash_warning)
5285 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5286
5287 if (entry->d.h == h)
5288 return 1;
5289
5290 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5291 NO_INSERT);
5292
5293 if (oentry)
5294 {
5295 /* Merge the two entries. */
5296 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5297 htab_clear_slot (*htab, entryp);
5298 return 1;
5299 }
5300
5301 entry->d.h = h;
5302
5303 /* If we can't find this entry with the new bfd hash, re-insert
5304 it, and get the traversal restarted. */
5305 if (! htab_find (*htab, entry))
5306 {
5307 htab_clear_slot (*htab, entryp);
5308 entryp = htab_find_slot (*htab, entry, INSERT);
5309 if (! *entryp)
5310 *entryp = entry;
5311 /* Abort the traversal, since the whole table may have
5312 moved, and leave it up to the parent to restart the
5313 process. */
5314 *(htab_t *)p = NULL;
5315 return 0;
5316 }
5317 }
5318
5319 return 1;
5320 }
5321
5322 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5323 section and the rofixup section. Assign locations for GOT and PLT
5324 entries. */
5325
5326 static bfd_boolean
5327 _frvfdpic_size_got_plt (bfd *output_bfd,
5328 struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5329 {
5330 bfd_signed_vma odd;
5331 bfd_vma limit, tlslimit;
5332 struct bfd_link_info *info = gpinfop->g.info;
5333 bfd *dynobj = elf_hash_table (info)->dynobj;
5334
5335 memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5336 sizeof (gpinfop->g));
5337
5338 odd = 12;
5339 /* Compute the total size taken by entries in the 12-bit and 16-bit
5340 ranges, to tell how many PLT function descriptors we can bring
5341 into the 12-bit range without causing the 16-bit range to
5342 overflow. */
5343 limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5344 + gpinfop->g.fd12 + gpinfop->g.fdlos
5345 + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5346 if (limit < (bfd_vma)1 << 16)
5347 limit = ((bfd_vma)1 << 16) - limit;
5348 else
5349 limit = 0;
5350 if (gpinfop->g.fdplt < limit)
5351 {
5352 tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5353 limit = gpinfop->g.fdplt;
5354 }
5355 else
5356 tlslimit = 0;
5357 if (gpinfop->g.tlsdplt < tlslimit)
5358 tlslimit = gpinfop->g.tlsdplt;
5359
5360 /* Determine the ranges of GOT offsets that we can use for each
5361 range of addressing modes. */
5362 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5363 0,
5364 odd,
5365 16,
5366 gpinfop->g.got12,
5367 gpinfop->g.fd12,
5368 limit,
5369 gpinfop->g.tlsd12,
5370 tlslimit,
5371 (bfd_vma)1 << (12-1));
5372 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5373 gpinfop->got12.tmin,
5374 odd,
5375 gpinfop->got12.tmax,
5376 gpinfop->g.gotlos,
5377 gpinfop->g.fdlos,
5378 gpinfop->g.fdplt
5379 - gpinfop->got12.fdplt,
5380 gpinfop->g.tlsdlos,
5381 gpinfop->g.tlsdplt
5382 - gpinfop->got12.tlsdplt,
5383 (bfd_vma)1 << (16-1));
5384 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5385 gpinfop->gotlos.tmin,
5386 odd,
5387 gpinfop->gotlos.tmax,
5388 gpinfop->g.gothilo,
5389 gpinfop->g.fdhilo,
5390 gpinfop->g.fdplt
5391 - gpinfop->got12.fdplt
5392 - gpinfop->gotlos.fdplt,
5393 gpinfop->g.tlsdhilo,
5394 gpinfop->g.tlsdplt
5395 - gpinfop->got12.tlsdplt
5396 - gpinfop->gotlos.tlsdplt,
5397 (bfd_vma)1 << (32-1));
5398
5399 /* Now assign (most) GOT offsets. */
5400 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5401 gpinfop);
5402
5403 frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5404 - gpinfop->gothilo.tmin
5405 /* If an odd word is the last word of the GOT, we don't need this
5406 word to be part of the GOT. */
5407 - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5408 if (frvfdpic_got_section (info)->size == 0)
5409 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5410 else if (frvfdpic_got_section (info)->size == 12
5411 && ! elf_hash_table (info)->dynamic_sections_created)
5412 {
5413 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5414 frvfdpic_got_section (info)->size = 0;
5415 }
5416 /* This will be non-NULL during relaxation. The assumption is that
5417 the size of one of these sections will never grow, only shrink,
5418 so we can use the larger buffer we allocated before. */
5419 else if (frvfdpic_got_section (info)->contents == NULL)
5420 {
5421 frvfdpic_got_section (info)->contents =
5422 (bfd_byte *) bfd_zalloc (dynobj,
5423 frvfdpic_got_section (info)->size);
5424 if (frvfdpic_got_section (info)->contents == NULL)
5425 return FALSE;
5426 }
5427
5428 if (frvfdpic_gotrel_section (info))
5429 /* Subtract the number of lzplt entries, since those will generate
5430 relocations in the pltrel section. */
5431 frvfdpic_gotrel_section (info)->size =
5432 (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5433 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5434 else
5435 BFD_ASSERT (gpinfop->g.relocs == 0);
5436 if (frvfdpic_gotrel_section (info)->size == 0)
5437 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5438 else if (frvfdpic_gotrel_section (info)->contents == NULL)
5439 {
5440 frvfdpic_gotrel_section (info)->contents =
5441 (bfd_byte *) bfd_zalloc (dynobj,
5442 frvfdpic_gotrel_section (info)->size);
5443 if (frvfdpic_gotrel_section (info)->contents == NULL)
5444 return FALSE;
5445 }
5446
5447 frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5448 if (frvfdpic_gotfixup_section (info)->size == 0)
5449 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5450 else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5451 {
5452 frvfdpic_gotfixup_section (info)->contents =
5453 (bfd_byte *) bfd_zalloc (dynobj,
5454 frvfdpic_gotfixup_section (info)->size);
5455 if (frvfdpic_gotfixup_section (info)->contents == NULL)
5456 return FALSE;
5457 }
5458
5459 if (frvfdpic_pltrel_section (info))
5460 {
5461 frvfdpic_pltrel_section (info)->size =
5462 gpinfop->g.lzplt / 8
5463 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5464 if (frvfdpic_pltrel_section (info)->size == 0)
5465 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5466 else if (frvfdpic_pltrel_section (info)->contents == NULL)
5467 {
5468 frvfdpic_pltrel_section (info)->contents =
5469 (bfd_byte *) bfd_zalloc (dynobj,
5470 frvfdpic_pltrel_section (info)->size);
5471 if (frvfdpic_pltrel_section (info)->contents == NULL)
5472 return FALSE;
5473 }
5474 }
5475
5476 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5477 such that there's room for the additional instruction needed to
5478 call the resolver. Since _frvfdpic_assign_got_entries didn't
5479 account for them, our block size is 4 bytes smaller than the real
5480 block size. */
5481 if (frvfdpic_plt_section (info))
5482 {
5483 frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5484 + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5485 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5486 }
5487
5488 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5489 actually assign lazy PLT entries addresses. */
5490 gpinfop->g.lzplt = 0;
5491
5492 /* Save information that we're going to need to generate GOT and PLT
5493 entries. */
5494 frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5495
5496 if (get_elf_backend_data (output_bfd)->want_got_sym)
5497 elf_hash_table (info)->hgot->root.u.def.value
5498 = frvfdpic_got_initial_offset (info);
5499
5500 if (frvfdpic_plt_section (info))
5501 frvfdpic_plt_initial_offset (info) =
5502 frvfdpic_plt_section (info)->size;
5503
5504 /* Allocate a ret statement at plt_initial_offset, to be used by
5505 locally-resolved TLS descriptors. */
5506 if (gpinfop->g.tls_ret_refs)
5507 frvfdpic_plt_section (info)->size += 4;
5508
5509 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5510 gpinfop);
5511
5512 /* Allocate the PLT section contents only after
5513 _frvfdpic_assign_plt_entries has a chance to add the size of the
5514 non-lazy PLT entries. */
5515 if (frvfdpic_plt_section (info))
5516 {
5517 if (frvfdpic_plt_section (info)->size == 0)
5518 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5519 else if (frvfdpic_plt_section (info)->contents == NULL)
5520 {
5521 frvfdpic_plt_section (info)->contents =
5522 (bfd_byte *) bfd_zalloc (dynobj,
5523 frvfdpic_plt_section (info)->size);
5524 if (frvfdpic_plt_section (info)->contents == NULL)
5525 return FALSE;
5526 }
5527 }
5528
5529 return TRUE;
5530 }
5531
5532 /* Set the sizes of the dynamic sections. */
5533
5534 static bfd_boolean
5535 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5536 struct bfd_link_info *info)
5537 {
5538 bfd *dynobj;
5539 asection *s;
5540 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5541
5542 dynobj = elf_hash_table (info)->dynobj;
5543 BFD_ASSERT (dynobj != NULL);
5544
5545 if (elf_hash_table (info)->dynamic_sections_created)
5546 {
5547 /* Set the contents of the .interp section to the interpreter. */
5548 if (info->executable)
5549 {
5550 s = bfd_get_section_by_name (dynobj, ".interp");
5551 BFD_ASSERT (s != NULL);
5552 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5553 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5554 }
5555 }
5556
5557 memset (&gpinfo, 0, sizeof (gpinfo));
5558 gpinfo.g.info = info;
5559
5560 for (;;)
5561 {
5562 htab_t relocs = frvfdpic_relocs_info (info);
5563
5564 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5565
5566 if (relocs == frvfdpic_relocs_info (info))
5567 break;
5568 }
5569
5570 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5571 &gpinfo.g);
5572
5573 /* Allocate space to save the summary information, we're going to
5574 use it if we're doing relaxations. */
5575 frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5576
5577 if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5578 return FALSE;
5579
5580 if (elf_hash_table (info)->dynamic_sections_created)
5581 {
5582 if (frvfdpic_got_section (info)->size)
5583 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5584 return FALSE;
5585
5586 if (frvfdpic_pltrel_section (info)->size)
5587 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5588 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5589 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5590 return FALSE;
5591
5592 if (frvfdpic_gotrel_section (info)->size)
5593 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5594 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5595 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5596 sizeof (Elf32_External_Rel)))
5597 return FALSE;
5598 }
5599
5600 return TRUE;
5601 }
5602
5603 static bfd_boolean
5604 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5605 struct bfd_link_info *info)
5606 {
5607 if (!info->relocatable)
5608 {
5609 struct elf_link_hash_entry *h;
5610 asection *sec;
5611
5612 /* Force a PT_GNU_STACK segment to be created. */
5613 if (! elf_tdata (output_bfd)->stack_flags)
5614 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
5615
5616 /* Define __stacksize if it's not defined yet. */
5617 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5618 FALSE, FALSE, FALSE);
5619 if (! h || h->root.type != bfd_link_hash_defined
5620 || h->type != STT_OBJECT
5621 || !h->def_regular)
5622 {
5623 struct bfd_link_hash_entry *bh = NULL;
5624
5625 if (!(_bfd_generic_link_add_one_symbol
5626 (info, output_bfd, "__stacksize",
5627 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
5628 (const char *) NULL, FALSE,
5629 get_elf_backend_data (output_bfd)->collect, &bh)))
5630 return FALSE;
5631
5632 h = (struct elf_link_hash_entry *) bh;
5633 h->def_regular = 1;
5634 h->type = STT_OBJECT;
5635 /* This one must NOT be hidden. */
5636 }
5637
5638 /* Create a stack section, and set its alignment. */
5639 sec = bfd_make_section (output_bfd, ".stack");
5640
5641 if (sec == NULL
5642 || ! bfd_set_section_alignment (output_bfd, sec, 3))
5643 return FALSE;
5644 }
5645
5646 return TRUE;
5647 }
5648
5649 /* Look for opportunities to relax TLS relocations. We can assume
5650 we're linking the main executable or a static-tls library, since
5651 otherwise we wouldn't have got here. */
5652
5653 static int
5654 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5655 {
5656 struct frvfdpic_relocs_info *entry = *entryp;
5657 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5658
5659 _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5660
5661 return 1;
5662 }
5663
5664 static bfd_boolean
5665 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5666 struct bfd_link_info *info, bfd_boolean *again)
5667 {
5668 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5669
5670 /* If we return early, we didn't change anything. */
5671 *again = FALSE;
5672
5673 /* We'll do our thing when requested to relax the GOT section. */
5674 if (sec != frvfdpic_got_section (info))
5675 return TRUE;
5676
5677 /* We can only relax when linking the main executable or a library
5678 that can't be dlopened. */
5679 if (! info->executable && ! (info->flags & DF_STATIC_TLS))
5680 return TRUE;
5681
5682 /* If there isn't a TLS section for this binary, we can't do
5683 anything about its TLS relocations (it probably doesn't have
5684 any. */
5685 if (elf_hash_table (info)->tls_sec == NULL)
5686 return TRUE;
5687
5688 memset (&gpinfo, 0, sizeof (gpinfo));
5689 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5690
5691 /* Now look for opportunities to relax, adjusting the GOT usage
5692 as needed. */
5693 htab_traverse (frvfdpic_relocs_info (info),
5694 _frvfdpic_relax_got_plt_entries,
5695 &gpinfo.g);
5696
5697 /* If we changed anything, reset and re-assign GOT and PLT entries. */
5698 if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5699 &gpinfo.g, sizeof (gpinfo.g)) != 0)
5700 {
5701 /* Clear GOT and PLT assignments. */
5702 htab_traverse (frvfdpic_relocs_info (info),
5703 _frvfdpic_reset_got_plt_entries,
5704 NULL);
5705
5706 /* The owner of the TLS section is the output bfd. There should
5707 be a better way to get to it. */
5708 if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5709 &gpinfo))
5710 return FALSE;
5711
5712 /* Repeat until we don't make any further changes. We could fail to
5713 introduce changes in a round if, for example, the 12-bit range is
5714 full, but we later release some space by getting rid of TLS
5715 descriptors in it. We have to repeat the whole process because
5716 we might have changed the size of a section processed before this
5717 one. */
5718 *again = TRUE;
5719 }
5720
5721 return TRUE;
5722 }
5723
5724 static bfd_boolean
5725 elf32_frvfdpic_modify_segment_map (bfd *output_bfd,
5726 struct bfd_link_info *info)
5727 {
5728 struct elf_segment_map *m;
5729
5730 /* objcopy and strip preserve what's already there using
5731 elf32_frvfdpic_copy_private_bfd_data (). */
5732 if (! info)
5733 return TRUE;
5734
5735 for (m = elf_tdata (output_bfd)->segment_map; m != NULL; m = m->next)
5736 if (m->p_type == PT_GNU_STACK)
5737 break;
5738
5739 if (m)
5740 {
5741 asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
5742 struct elf_link_hash_entry *h;
5743
5744 if (sec)
5745 {
5746 /* Obtain the pointer to the __stacksize symbol. */
5747 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5748 FALSE, FALSE, FALSE);
5749 while (h->root.type == bfd_link_hash_indirect
5750 || h->root.type == bfd_link_hash_warning)
5751 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5752 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
5753
5754 /* Set the section size from the symbol value. We
5755 intentionally ignore the symbol section. */
5756 if (h->root.type == bfd_link_hash_defined)
5757 sec->size = h->root.u.def.value;
5758 else
5759 sec->size = DEFAULT_STACK_SIZE;
5760
5761 /* Add the stack section to the PT_GNU_STACK segment,
5762 such that its size and alignment requirements make it
5763 to the segment. */
5764 m->sections[m->count] = sec;
5765 m->count++;
5766 }
5767 }
5768
5769 return TRUE;
5770 }
5771
5772 /* Fill in code and data in dynamic sections. */
5773
5774 static bfd_boolean
5775 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5776 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5777 {
5778 /* Nothing to be done for non-FDPIC. */
5779 return TRUE;
5780 }
5781
5782 static bfd_boolean
5783 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5784 struct bfd_link_info *info)
5785 {
5786 bfd *dynobj;
5787 asection *sdyn;
5788
5789 dynobj = elf_hash_table (info)->dynobj;
5790
5791 if (frvfdpic_dynamic_got_plt_info (info))
5792 {
5793 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5794 }
5795 if (frvfdpic_got_section (info))
5796 {
5797 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5798 == (frvfdpic_gotrel_section (info)->reloc_count
5799 * sizeof (Elf32_External_Rel)));
5800
5801 if (frvfdpic_gotfixup_section (info))
5802 {
5803 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5804 bfd_vma got_value = hgot->root.u.def.value
5805 + hgot->root.u.def.section->output_section->vma
5806 + hgot->root.u.def.section->output_offset;
5807 struct bfd_link_hash_entry *hend;
5808
5809 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5810 got_value, 0);
5811
5812 if (frvfdpic_gotfixup_section (info)->size
5813 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5814 {
5815 error:
5816 (*_bfd_error_handler)
5817 ("LINKER BUG: .rofixup section size mismatch");
5818 return FALSE;
5819 }
5820
5821 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5822 FALSE, FALSE, TRUE);
5823 if (hend
5824 && (hend->type == bfd_link_hash_defined
5825 || hend->type == bfd_link_hash_defweak))
5826 {
5827 bfd_vma value =
5828 frvfdpic_gotfixup_section (info)->output_section->vma
5829 + frvfdpic_gotfixup_section (info)->output_offset
5830 + frvfdpic_gotfixup_section (info)->size
5831 - hend->u.def.section->output_section->vma
5832 - hend->u.def.section->output_offset;
5833 BFD_ASSERT (hend->u.def.value == value);
5834 if (hend->u.def.value != value)
5835 goto error;
5836 }
5837 }
5838 }
5839 if (frvfdpic_pltrel_section (info))
5840 {
5841 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5842 == (frvfdpic_pltrel_section (info)->reloc_count
5843 * sizeof (Elf32_External_Rel)));
5844 }
5845
5846
5847 if (elf_hash_table (info)->dynamic_sections_created)
5848 {
5849 Elf32_External_Dyn * dyncon;
5850 Elf32_External_Dyn * dynconend;
5851
5852 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
5853
5854 BFD_ASSERT (sdyn != NULL);
5855
5856 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5857 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5858
5859 for (; dyncon < dynconend; dyncon++)
5860 {
5861 Elf_Internal_Dyn dyn;
5862
5863 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5864
5865 switch (dyn.d_tag)
5866 {
5867 default:
5868 break;
5869
5870 case DT_PLTGOT:
5871 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5872 + frvfdpic_got_section (info)->output_offset
5873 + frvfdpic_got_initial_offset (info);
5874 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5875 break;
5876
5877 case DT_JMPREL:
5878 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5879 ->output_section->vma
5880 + frvfdpic_pltrel_section (info)->output_offset;
5881 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5882 break;
5883
5884 case DT_PLTRELSZ:
5885 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5886 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5887 break;
5888 }
5889 }
5890 }
5891
5892 return TRUE;
5893 }
5894
5895 /* Adjust a symbol defined by a dynamic object and referenced by a
5896 regular object. */
5897
5898 static bfd_boolean
5899 elf32_frvfdpic_adjust_dynamic_symbol
5900 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5901 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5902 {
5903 bfd * dynobj;
5904
5905 dynobj = elf_hash_table (info)->dynobj;
5906
5907 /* Make sure we know what is going on here. */
5908 BFD_ASSERT (dynobj != NULL
5909 && (h->u.weakdef != NULL
5910 || (h->def_dynamic
5911 && h->ref_regular
5912 && !h->def_regular)));
5913
5914 /* If this is a weak symbol, and there is a real definition, the
5915 processor independent code will have arranged for us to see the
5916 real definition first, and we can just use the same value. */
5917 if (h->u.weakdef != NULL)
5918 {
5919 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5920 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5921 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5922 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5923 }
5924
5925 return TRUE;
5926 }
5927
5928 /* Perform any actions needed for dynamic symbols. */
5929
5930 static bfd_boolean
5931 elf32_frvfdpic_finish_dynamic_symbol
5932 (bfd *output_bfd ATTRIBUTE_UNUSED,
5933 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5934 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
5935 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5936 {
5937 return TRUE;
5938 }
5939
5940 /* Decide whether to attempt to turn absptr or lsda encodings in
5941 shared libraries into pcrel within the given input section. */
5942
5943 static bfd_boolean
5944 frvfdpic_elf_use_relative_eh_frame
5945 (bfd *input_bfd ATTRIBUTE_UNUSED,
5946 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5947 asection *eh_frame_section ATTRIBUTE_UNUSED)
5948 {
5949 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
5950 return FALSE;
5951 }
5952
5953 /* Adjust the contents of an eh_frame_hdr section before they're output. */
5954
5955 static bfd_byte
5956 frvfdpic_elf_encode_eh_address (bfd *abfd,
5957 struct bfd_link_info *info,
5958 asection *osec, bfd_vma offset,
5959 asection *loc_sec, bfd_vma loc_offset,
5960 bfd_vma *encoded)
5961 {
5962 struct elf_link_hash_entry *h;
5963
5964 h = elf_hash_table (info)->hgot;
5965 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
5966
5967 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
5968 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
5969 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
5970 loc_sec, loc_offset, encoded);
5971
5972 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
5973 == (_frvfdpic_osec_to_segment
5974 (abfd, h->root.u.def.section->output_section)));
5975
5976 *encoded = osec->vma + offset
5977 - (h->root.u.def.value
5978 + h->root.u.def.section->output_section->vma
5979 + h->root.u.def.section->output_offset);
5980
5981 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
5982 }
5983
5984 /* Look through the relocs for a section during the first phase.
5985
5986 Besides handling virtual table relocs for gc, we have to deal with
5987 all sorts of PIC-related relocations. We describe below the
5988 general plan on how to handle such relocations, even though we only
5989 collect information at this point, storing them in hash tables for
5990 perusal of later passes.
5991
5992 32 relocations are propagated to the linker output when creating
5993 position-independent output. LO16 and HI16 relocations are not
5994 supposed to be encountered in this case.
5995
5996 LABEL16 should always be resolvable by the linker, since it's only
5997 used by branches.
5998
5999 LABEL24, on the other hand, is used by calls. If it turns out that
6000 the target of a call is a dynamic symbol, a PLT entry must be
6001 created for it, which triggers the creation of a private function
6002 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
6003
6004 GPREL relocations require the referenced symbol to be in the same
6005 segment as _gp, but this can only be checked later.
6006
6007 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
6008 exist. LABEL24 might as well, since it may require a PLT entry,
6009 that will require a got.
6010
6011 Non-FUNCDESC GOT relocations require a GOT entry to be created
6012 regardless of whether the symbol is dynamic. However, since a
6013 global symbol that turns out to not be exported may have the same
6014 address of a non-dynamic symbol, we don't assign GOT entries at
6015 this point, such that we can share them in this case. A relocation
6016 for the GOT entry always has to be created, be it to offset a
6017 private symbol by the section load address, be it to get the symbol
6018 resolved dynamically.
6019
6020 FUNCDESC GOT relocations require a GOT entry to be created, and
6021 handled as if a FUNCDESC relocation was applied to the GOT entry in
6022 an object file.
6023
6024 FUNCDESC relocations referencing a symbol that turns out to NOT be
6025 dynamic cause a private function descriptor to be created. The
6026 FUNCDESC relocation then decays to a 32 relocation that points at
6027 the private descriptor. If the symbol is dynamic, the FUNCDESC
6028 relocation is propagated to the linker output, such that the
6029 dynamic linker creates the canonical descriptor, pointing to the
6030 dynamically-resolved definition of the function.
6031
6032 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
6033 symbols that are assigned to the same segment as the GOT, but we
6034 can only check this later, after we know the complete set of
6035 symbols defined and/or exported.
6036
6037 FUNCDESC GOTOFF relocations require a function descriptor to be
6038 created and, unless lazy binding is disabled or the symbol is not
6039 dynamic, a lazy PLT entry. Since we can't tell at this point
6040 whether a symbol is going to be dynamic, we have to decide later
6041 whether to create a lazy PLT entry or bind the descriptor directly
6042 to the private function.
6043
6044 FUNCDESC_VALUE relocations are not supposed to be present in object
6045 files, but they may very well be simply propagated to the linker
6046 output, since they have no side effect.
6047
6048
6049 A function descriptor always requires a FUNCDESC_VALUE relocation.
6050 Whether it's in .plt.rel or not depends on whether lazy binding is
6051 enabled and on whether the referenced symbol is dynamic.
6052
6053 The existence of a lazy PLT requires the resolverStub lazy PLT
6054 entry to be present.
6055
6056
6057 As for assignment of GOT, PLT and lazy PLT entries, and private
6058 descriptors, we might do them all sequentially, but we can do
6059 better than that. For example, we can place GOT entries and
6060 private function descriptors referenced using 12-bit operands
6061 closer to the PIC register value, such that these relocations don't
6062 overflow. Those that are only referenced with LO16 relocations
6063 could come next, but we may as well place PLT-required function
6064 descriptors in the 12-bit range to make them shorter. Symbols
6065 referenced with LO16/HI16 may come next, but we may place
6066 additional function descriptors in the 16-bit range if we can
6067 reliably tell that we've already placed entries that are ever
6068 referenced with only LO16. PLT entries are therefore generated as
6069 small as possible, while not introducing relocation overflows in
6070 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
6071 generated before or after PLT entries, but not intermingled with
6072 them, such that we can have more lazy PLT entries in range for a
6073 branch to the resolverStub. The resolverStub should be emitted at
6074 the most distant location from the first lazy PLT entry such that
6075 it's still in range for a branch, or closer, if there isn't a need
6076 for so many lazy PLT entries. Additional lazy PLT entries may be
6077 emitted after the resolverStub, as long as branches are still in
6078 range. If the branch goes out of range, longer lazy PLT entries
6079 are emitted.
6080
6081 We could further optimize PLT and lazy PLT entries by giving them
6082 priority in assignment to closer-to-gr17 locations depending on the
6083 number of occurrences of references to them (assuming a function
6084 that's called more often is more important for performance, so its
6085 PLT entry should be faster), or taking hints from the compiler.
6086 Given infinite time and money... :-) */
6087
6088 static bfd_boolean
6089 elf32_frv_check_relocs (abfd, info, sec, relocs)
6090 bfd *abfd;
6091 struct bfd_link_info *info;
6092 asection *sec;
6093 const Elf_Internal_Rela *relocs;
6094 {
6095 Elf_Internal_Shdr *symtab_hdr;
6096 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
6097 const Elf_Internal_Rela *rel;
6098 const Elf_Internal_Rela *rel_end;
6099 bfd *dynobj;
6100 struct frvfdpic_relocs_info *picrel;
6101
6102 if (info->relocatable)
6103 return TRUE;
6104
6105 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6106 sym_hashes = elf_sym_hashes (abfd);
6107 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
6108 if (!elf_bad_symtab (abfd))
6109 sym_hashes_end -= symtab_hdr->sh_info;
6110
6111 dynobj = elf_hash_table (info)->dynobj;
6112 rel_end = relocs + sec->reloc_count;
6113 for (rel = relocs; rel < rel_end; rel++)
6114 {
6115 struct elf_link_hash_entry *h;
6116 unsigned long r_symndx;
6117
6118 r_symndx = ELF32_R_SYM (rel->r_info);
6119 if (r_symndx < symtab_hdr->sh_info)
6120 h = NULL;
6121 else
6122 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6123
6124 switch (ELF32_R_TYPE (rel->r_info))
6125 {
6126 case R_FRV_GETTLSOFF:
6127 case R_FRV_TLSDESC_VALUE:
6128 case R_FRV_GOTTLSDESC12:
6129 case R_FRV_GOTTLSDESCHI:
6130 case R_FRV_GOTTLSDESCLO:
6131 case R_FRV_GOTTLSOFF12:
6132 case R_FRV_GOTTLSOFFHI:
6133 case R_FRV_GOTTLSOFFLO:
6134 case R_FRV_TLSOFF:
6135 case R_FRV_GOT12:
6136 case R_FRV_GOTHI:
6137 case R_FRV_GOTLO:
6138 case R_FRV_FUNCDESC_GOT12:
6139 case R_FRV_FUNCDESC_GOTHI:
6140 case R_FRV_FUNCDESC_GOTLO:
6141 case R_FRV_GOTOFF12:
6142 case R_FRV_GOTOFFHI:
6143 case R_FRV_GOTOFFLO:
6144 case R_FRV_FUNCDESC_GOTOFF12:
6145 case R_FRV_FUNCDESC_GOTOFFHI:
6146 case R_FRV_FUNCDESC_GOTOFFLO:
6147 case R_FRV_FUNCDESC:
6148 case R_FRV_FUNCDESC_VALUE:
6149 case R_FRV_TLSMOFF12:
6150 case R_FRV_TLSMOFFHI:
6151 case R_FRV_TLSMOFFLO:
6152 case R_FRV_TLSMOFF:
6153 if (! IS_FDPIC (abfd))
6154 goto bad_reloc;
6155 /* Fall through. */
6156 case R_FRV_GPREL12:
6157 case R_FRV_GPRELU12:
6158 case R_FRV_GPRELHI:
6159 case R_FRV_GPRELLO:
6160 case R_FRV_LABEL24:
6161 case R_FRV_32:
6162 if (! dynobj)
6163 {
6164 elf_hash_table (info)->dynobj = dynobj = abfd;
6165 if (! _frv_create_got_section (abfd, info))
6166 return FALSE;
6167 }
6168 if (! IS_FDPIC (abfd))
6169 {
6170 picrel = NULL;
6171 break;
6172 }
6173 if (h != NULL)
6174 {
6175 if (h->dynindx == -1)
6176 switch (ELF_ST_VISIBILITY (h->other))
6177 {
6178 case STV_INTERNAL:
6179 case STV_HIDDEN:
6180 break;
6181 default:
6182 bfd_elf_link_record_dynamic_symbol (info, h);
6183 break;
6184 }
6185 picrel
6186 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6187 abfd, h,
6188 rel->r_addend, INSERT);
6189 }
6190 else
6191 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6192 (info), abfd, r_symndx,
6193 rel->r_addend, INSERT);
6194 if (! picrel)
6195 return FALSE;
6196 break;
6197
6198 default:
6199 picrel = NULL;
6200 break;
6201 }
6202
6203 switch (ELF32_R_TYPE (rel->r_info))
6204 {
6205 case R_FRV_LABEL24:
6206 if (IS_FDPIC (abfd))
6207 picrel->call = 1;
6208 break;
6209
6210 case R_FRV_FUNCDESC_VALUE:
6211 picrel->relocsfdv++;
6212 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6213 picrel->relocs32--;
6214 /* Fall through. */
6215
6216 case R_FRV_32:
6217 if (! IS_FDPIC (abfd))
6218 break;
6219
6220 picrel->sym = 1;
6221 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6222 picrel->relocs32++;
6223 break;
6224
6225 case R_FRV_GOT12:
6226 picrel->got12 = 1;
6227 break;
6228
6229 case R_FRV_GOTHI:
6230 case R_FRV_GOTLO:
6231 picrel->gothilo = 1;
6232 break;
6233
6234 case R_FRV_FUNCDESC_GOT12:
6235 picrel->fdgot12 = 1;
6236 break;
6237
6238 case R_FRV_FUNCDESC_GOTHI:
6239 case R_FRV_FUNCDESC_GOTLO:
6240 picrel->fdgothilo = 1;
6241 break;
6242
6243 case R_FRV_GOTOFF12:
6244 case R_FRV_GOTOFFHI:
6245 case R_FRV_GOTOFFLO:
6246 picrel->gotoff = 1;
6247 break;
6248
6249 case R_FRV_FUNCDESC_GOTOFF12:
6250 picrel->fdgoff12 = 1;
6251 break;
6252
6253 case R_FRV_FUNCDESC_GOTOFFHI:
6254 case R_FRV_FUNCDESC_GOTOFFLO:
6255 picrel->fdgoffhilo = 1;
6256 break;
6257
6258 case R_FRV_FUNCDESC:
6259 picrel->fd = 1;
6260 picrel->relocsfd++;
6261 break;
6262
6263 case R_FRV_GETTLSOFF:
6264 picrel->tlsplt = 1;
6265 break;
6266
6267 case R_FRV_TLSDESC_VALUE:
6268 picrel->relocstlsd++;
6269 goto bad_reloc;
6270
6271 case R_FRV_GOTTLSDESC12:
6272 picrel->tlsdesc12 = 1;
6273 break;
6274
6275 case R_FRV_GOTTLSDESCHI:
6276 case R_FRV_GOTTLSDESCLO:
6277 picrel->tlsdeschilo = 1;
6278 break;
6279
6280 case R_FRV_TLSMOFF12:
6281 case R_FRV_TLSMOFFHI:
6282 case R_FRV_TLSMOFFLO:
6283 case R_FRV_TLSMOFF:
6284 break;
6285
6286 case R_FRV_GOTTLSOFF12:
6287 picrel->tlsoff12 = 1;
6288 info->flags |= DF_STATIC_TLS;
6289 break;
6290
6291 case R_FRV_GOTTLSOFFHI:
6292 case R_FRV_GOTTLSOFFLO:
6293 picrel->tlsoffhilo = 1;
6294 info->flags |= DF_STATIC_TLS;
6295 break;
6296
6297 case R_FRV_TLSOFF:
6298 picrel->relocstlsoff++;
6299 info->flags |= DF_STATIC_TLS;
6300 goto bad_reloc;
6301
6302 /* This relocation describes the C++ object vtable hierarchy.
6303 Reconstruct it for later use during GC. */
6304 case R_FRV_GNU_VTINHERIT:
6305 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6306 return FALSE;
6307 break;
6308
6309 /* This relocation describes which C++ vtable entries are actually
6310 used. Record for later use during GC. */
6311 case R_FRV_GNU_VTENTRY:
6312 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6313 return FALSE;
6314 break;
6315
6316 case R_FRV_LABEL16:
6317 case R_FRV_LO16:
6318 case R_FRV_HI16:
6319 case R_FRV_GPREL12:
6320 case R_FRV_GPRELU12:
6321 case R_FRV_GPREL32:
6322 case R_FRV_GPRELHI:
6323 case R_FRV_GPRELLO:
6324 case R_FRV_TLSDESC_RELAX:
6325 case R_FRV_GETTLSOFF_RELAX:
6326 case R_FRV_TLSOFF_RELAX:
6327 break;
6328
6329 default:
6330 bad_reloc:
6331 (*_bfd_error_handler)
6332 (_("%B: unsupported relocation type %i"),
6333 abfd, ELF32_R_TYPE (rel->r_info));
6334 return FALSE;
6335 }
6336 }
6337
6338 return TRUE;
6339 }
6340
6341 \f
6342 /* Return the machine subcode from the ELF e_flags header. */
6343
6344 static int
6345 elf32_frv_machine (abfd)
6346 bfd *abfd;
6347 {
6348 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6349 {
6350 default: break;
6351 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6352 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6353 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6354 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6355 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6356 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6357 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6358 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6359 }
6360
6361 return bfd_mach_frv;
6362 }
6363
6364 /* Set the right machine number for a FRV ELF file. */
6365
6366 static bfd_boolean
6367 elf32_frv_object_p (abfd)
6368 bfd *abfd;
6369 {
6370 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6371 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6372 == (IS_FDPIC (abfd)));
6373 }
6374 \f
6375 /* Function to set the ELF flag bits. */
6376
6377 static bfd_boolean
6378 frv_elf_set_private_flags (abfd, flags)
6379 bfd *abfd;
6380 flagword flags;
6381 {
6382 elf_elfheader (abfd)->e_flags = flags;
6383 elf_flags_init (abfd) = TRUE;
6384 return TRUE;
6385 }
6386
6387 /* Copy backend specific data from one object module to another. */
6388
6389 static bfd_boolean
6390 frv_elf_copy_private_bfd_data (ibfd, obfd)
6391 bfd *ibfd;
6392 bfd *obfd;
6393 {
6394 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6395 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6396 return TRUE;
6397
6398 BFD_ASSERT (!elf_flags_init (obfd)
6399 || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
6400
6401 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
6402 elf_flags_init (obfd) = TRUE;
6403 return TRUE;
6404 }
6405
6406 /* Return true if the architecture described by elf header flag
6407 EXTENSION is an extension of the architecture described by BASE. */
6408
6409 static bfd_boolean
6410 frv_elf_arch_extension_p (flagword base, flagword extension)
6411 {
6412 if (base == extension)
6413 return TRUE;
6414
6415 /* CPU_GENERIC code can be merged with code for a specific
6416 architecture, in which case the result is marked as being
6417 for the specific architecture. Everything is therefore
6418 an extension of CPU_GENERIC. */
6419 if (base == EF_FRV_CPU_GENERIC)
6420 return TRUE;
6421
6422 if (extension == EF_FRV_CPU_FR450)
6423 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6424 return TRUE;
6425
6426 if (extension == EF_FRV_CPU_FR405)
6427 if (base == EF_FRV_CPU_FR400)
6428 return TRUE;
6429
6430 return FALSE;
6431 }
6432
6433 static bfd_boolean
6434 elf32_frvfdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
6435 {
6436 unsigned i;
6437
6438 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6439 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6440 return TRUE;
6441
6442 if (! frv_elf_copy_private_bfd_data (ibfd, obfd))
6443 return FALSE;
6444
6445 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
6446 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
6447 return TRUE;
6448
6449 /* Copy the stack size. */
6450 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
6451 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
6452 {
6453 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
6454
6455 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
6456 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
6457 {
6458 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
6459
6460 /* Rewrite the phdrs, since we're only called after they
6461 were first written. */
6462 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
6463 ->s->sizeof_ehdr, SEEK_SET) != 0
6464 || get_elf_backend_data (obfd)->s
6465 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
6466 elf_elfheader (obfd)->e_phnum) != 0)
6467 return FALSE;
6468 break;
6469 }
6470
6471 break;
6472 }
6473
6474 return TRUE;
6475 }
6476
6477 /* Merge backend specific data from an object file to the output
6478 object file when linking. */
6479
6480 static bfd_boolean
6481 frv_elf_merge_private_bfd_data (ibfd, obfd)
6482 bfd *ibfd;
6483 bfd *obfd;
6484 {
6485 flagword old_flags, old_partial;
6486 flagword new_flags, new_partial;
6487 bfd_boolean error = FALSE;
6488 char new_opt[80];
6489 char old_opt[80];
6490
6491 new_opt[0] = old_opt[0] = '\0';
6492 new_flags = elf_elfheader (ibfd)->e_flags;
6493 old_flags = elf_elfheader (obfd)->e_flags;
6494
6495 if (new_flags & EF_FRV_FDPIC)
6496 new_flags &= ~EF_FRV_PIC;
6497
6498 #ifdef DEBUG
6499 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
6500 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6501 bfd_get_filename (ibfd));
6502 #endif
6503
6504 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6505 {
6506 elf_flags_init (obfd) = TRUE;
6507 old_flags = new_flags;
6508 }
6509
6510 else if (new_flags == old_flags) /* Compatible flags are ok. */
6511 ;
6512
6513 else /* Possibly incompatible flags. */
6514 {
6515 /* Warn if different # of gprs are used. Note, 0 means nothing is
6516 said about the size of gprs. */
6517 new_partial = (new_flags & EF_FRV_GPR_MASK);
6518 old_partial = (old_flags & EF_FRV_GPR_MASK);
6519 if (new_partial == old_partial)
6520 ;
6521
6522 else if (new_partial == 0)
6523 ;
6524
6525 else if (old_partial == 0)
6526 old_flags |= new_partial;
6527
6528 else
6529 {
6530 switch (new_partial)
6531 {
6532 default: strcat (new_opt, " -mgpr-??"); break;
6533 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6534 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6535 }
6536
6537 switch (old_partial)
6538 {
6539 default: strcat (old_opt, " -mgpr-??"); break;
6540 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6541 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6542 }
6543 }
6544
6545 /* Warn if different # of fprs are used. Note, 0 means nothing is
6546 said about the size of fprs. */
6547 new_partial = (new_flags & EF_FRV_FPR_MASK);
6548 old_partial = (old_flags & EF_FRV_FPR_MASK);
6549 if (new_partial == old_partial)
6550 ;
6551
6552 else if (new_partial == 0)
6553 ;
6554
6555 else if (old_partial == 0)
6556 old_flags |= new_partial;
6557
6558 else
6559 {
6560 switch (new_partial)
6561 {
6562 default: strcat (new_opt, " -mfpr-?"); break;
6563 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6564 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6565 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6566 }
6567
6568 switch (old_partial)
6569 {
6570 default: strcat (old_opt, " -mfpr-?"); break;
6571 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6572 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6573 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6574 }
6575 }
6576
6577 /* Warn if different dword support was used. Note, 0 means nothing is
6578 said about the dword support. */
6579 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6580 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6581 if (new_partial == old_partial)
6582 ;
6583
6584 else if (new_partial == 0)
6585 ;
6586
6587 else if (old_partial == 0)
6588 old_flags |= new_partial;
6589
6590 else
6591 {
6592 switch (new_partial)
6593 {
6594 default: strcat (new_opt, " -mdword-?"); break;
6595 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6596 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6597 }
6598
6599 switch (old_partial)
6600 {
6601 default: strcat (old_opt, " -mdword-?"); break;
6602 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6603 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6604 }
6605 }
6606
6607 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6608 feature is used. */
6609 old_flags |= new_flags & (EF_FRV_DOUBLE
6610 | EF_FRV_MEDIA
6611 | EF_FRV_MULADD
6612 | EF_FRV_NON_PIC_RELOCS);
6613
6614 /* If any module was compiled without -G0, clear the G0 bit. */
6615 old_flags = ((old_flags & ~ EF_FRV_G0)
6616 | (old_flags & new_flags & EF_FRV_G0));
6617
6618 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6619 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6620 | (old_flags & new_flags & EF_FRV_NOPACK));
6621
6622 /* We don't have to do anything if the pic flags are the same, or the new
6623 module(s) were compiled with -mlibrary-pic. */
6624 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6625 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6626 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6627 ;
6628
6629 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6630 flags if any from the new module. */
6631 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6632 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6633
6634 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6635 else if (new_partial != 0 && old_partial != 0)
6636 old_flags |= new_partial;
6637
6638 /* One module was compiled for pic and the other was not, see if we have
6639 had any relocations that are not pic-safe. */
6640 else
6641 {
6642 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6643 old_flags |= new_partial;
6644 else
6645 {
6646 old_flags &= ~ EF_FRV_PIC_FLAGS;
6647 #ifndef FRV_NO_PIC_ERROR
6648 error = TRUE;
6649 (*_bfd_error_handler)
6650 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
6651 bfd_get_filename (ibfd),
6652 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6653 #endif
6654 }
6655 }
6656
6657 /* Warn if different cpu is used (allow a specific cpu to override
6658 the generic cpu). */
6659 new_partial = (new_flags & EF_FRV_CPU_MASK);
6660 old_partial = (old_flags & EF_FRV_CPU_MASK);
6661 if (frv_elf_arch_extension_p (new_partial, old_partial))
6662 ;
6663
6664 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6665 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6666
6667 else
6668 {
6669 switch (new_partial)
6670 {
6671 default: strcat (new_opt, " -mcpu=?"); break;
6672 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6673 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6674 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6675 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6676 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6677 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6678 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6679 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6680 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6681 }
6682
6683 switch (old_partial)
6684 {
6685 default: strcat (old_opt, " -mcpu=?"); break;
6686 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6687 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6688 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6689 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6690 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6691 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6692 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6693 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6694 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6695 }
6696 }
6697
6698 /* Print out any mismatches from above. */
6699 if (new_opt[0])
6700 {
6701 error = TRUE;
6702 (*_bfd_error_handler)
6703 (_("%s: compiled with %s and linked with modules compiled with %s"),
6704 bfd_get_filename (ibfd), new_opt, old_opt);
6705 }
6706
6707 /* Warn about any other mismatches */
6708 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6709 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6710 if (new_partial != old_partial)
6711 {
6712 old_flags |= new_partial;
6713 error = TRUE;
6714 (*_bfd_error_handler)
6715 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
6716 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
6717 }
6718 }
6719
6720 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6721 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6722 old_flags |= EF_FRV_NOPACK;
6723
6724 /* Update the old flags now with changes made above. */
6725 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6726 elf_elfheader (obfd)->e_flags = old_flags;
6727 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6728 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6729
6730 if (((new_flags & EF_FRV_FDPIC) == 0)
6731 != (! IS_FDPIC (ibfd)))
6732 {
6733 error = TRUE;
6734 if (IS_FDPIC (obfd))
6735 (*_bfd_error_handler)
6736 (_("%s: cannot link non-fdpic object file into fdpic executable"),
6737 bfd_get_filename (ibfd));
6738 else
6739 (*_bfd_error_handler)
6740 (_("%s: cannot link fdpic object file into non-fdpic executable"),
6741 bfd_get_filename (ibfd));
6742 }
6743
6744 if (error)
6745 bfd_set_error (bfd_error_bad_value);
6746
6747 return !error;
6748 }
6749
6750 \f
6751 bfd_boolean
6752 frv_elf_print_private_bfd_data (abfd, ptr)
6753 bfd *abfd;
6754 PTR ptr;
6755 {
6756 FILE *file = (FILE *) ptr;
6757 flagword flags;
6758
6759 BFD_ASSERT (abfd != NULL && ptr != NULL);
6760
6761 /* Print normal ELF private data. */
6762 _bfd_elf_print_private_bfd_data (abfd, ptr);
6763
6764 flags = elf_elfheader (abfd)->e_flags;
6765 fprintf (file, _("private flags = 0x%lx:"), (long)flags);
6766
6767 switch (flags & EF_FRV_CPU_MASK)
6768 {
6769 default: break;
6770 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6771 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6772 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6773 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6774 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6775 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6776 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6777 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6778 }
6779
6780 switch (flags & EF_FRV_GPR_MASK)
6781 {
6782 default: break;
6783 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6784 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6785 }
6786
6787 switch (flags & EF_FRV_FPR_MASK)
6788 {
6789 default: break;
6790 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6791 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6792 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6793 }
6794
6795 switch (flags & EF_FRV_DWORD_MASK)
6796 {
6797 default: break;
6798 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6799 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6800 }
6801
6802 if (flags & EF_FRV_DOUBLE)
6803 fprintf (file, " -mdouble");
6804
6805 if (flags & EF_FRV_MEDIA)
6806 fprintf (file, " -mmedia");
6807
6808 if (flags & EF_FRV_MULADD)
6809 fprintf (file, " -mmuladd");
6810
6811 if (flags & EF_FRV_PIC)
6812 fprintf (file, " -fpic");
6813
6814 if (flags & EF_FRV_BIGPIC)
6815 fprintf (file, " -fPIC");
6816
6817 if (flags & EF_FRV_LIBPIC)
6818 fprintf (file, " -mlibrary-pic");
6819
6820 if (flags & EF_FRV_FDPIC)
6821 fprintf (file, " -mfdpic");
6822
6823 if (flags & EF_FRV_NON_PIC_RELOCS)
6824 fprintf (file, " non-pic relocations");
6825
6826 if (flags & EF_FRV_G0)
6827 fprintf (file, " -G0");
6828
6829 fputc ('\n', file);
6830 return TRUE;
6831 }
6832
6833 \f
6834 #define ELF_ARCH bfd_arch_frv
6835 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
6836 #define ELF_MAXPAGESIZE 0x1000
6837
6838 #define TARGET_BIG_SYM bfd_elf32_frv_vec
6839 #define TARGET_BIG_NAME "elf32-frv"
6840
6841 #define elf_info_to_howto frv_info_to_howto_rela
6842 #define elf_backend_relocate_section elf32_frv_relocate_section
6843 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
6844 #define elf_backend_gc_sweep_hook elf32_frv_gc_sweep_hook
6845 #define elf_backend_check_relocs elf32_frv_check_relocs
6846 #define elf_backend_object_p elf32_frv_object_p
6847 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
6848
6849 #define elf_backend_can_gc_sections 1
6850 #define elf_backend_rela_normal 1
6851
6852 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
6853 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
6854 #define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data
6855 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
6856 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
6857
6858 #define elf_backend_want_got_sym 1
6859 #define elf_backend_got_header_size 0
6860 #define elf_backend_want_got_plt 0
6861 #define elf_backend_plt_readonly 1
6862 #define elf_backend_want_plt_sym 0
6863 #define elf_backend_plt_header_size 0
6864
6865 #define elf_backend_finish_dynamic_sections \
6866 elf32_frv_finish_dynamic_sections
6867
6868 #include "elf32-target.h"
6869
6870 #undef ELF_MAXPAGESIZE
6871 #define ELF_MAXPAGESIZE 0x4000
6872
6873 #undef TARGET_BIG_SYM
6874 #define TARGET_BIG_SYM bfd_elf32_frvfdpic_vec
6875 #undef TARGET_BIG_NAME
6876 #define TARGET_BIG_NAME "elf32-frvfdpic"
6877 #undef elf32_bed
6878 #define elf32_bed elf32_frvfdpic_bed
6879
6880 #undef elf_info_to_howto_rel
6881 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
6882
6883 #undef bfd_elf32_bfd_link_hash_table_create
6884 #define bfd_elf32_bfd_link_hash_table_create \
6885 frvfdpic_elf_link_hash_table_create
6886 #undef elf_backend_always_size_sections
6887 #define elf_backend_always_size_sections \
6888 elf32_frvfdpic_always_size_sections
6889 #undef elf_backend_modify_segment_map
6890 #define elf_backend_modify_segment_map \
6891 elf32_frvfdpic_modify_segment_map
6892 #undef bfd_elf32_bfd_copy_private_bfd_data
6893 #define bfd_elf32_bfd_copy_private_bfd_data \
6894 elf32_frvfdpic_copy_private_bfd_data
6895
6896 #undef elf_backend_create_dynamic_sections
6897 #define elf_backend_create_dynamic_sections \
6898 elf32_frvfdpic_create_dynamic_sections
6899 #undef elf_backend_adjust_dynamic_symbol
6900 #define elf_backend_adjust_dynamic_symbol \
6901 elf32_frvfdpic_adjust_dynamic_symbol
6902 #undef elf_backend_size_dynamic_sections
6903 #define elf_backend_size_dynamic_sections \
6904 elf32_frvfdpic_size_dynamic_sections
6905 #undef bfd_elf32_bfd_relax_section
6906 #define bfd_elf32_bfd_relax_section \
6907 elf32_frvfdpic_relax_section
6908 #undef elf_backend_finish_dynamic_symbol
6909 #define elf_backend_finish_dynamic_symbol \
6910 elf32_frvfdpic_finish_dynamic_symbol
6911 #undef elf_backend_finish_dynamic_sections
6912 #define elf_backend_finish_dynamic_sections \
6913 elf32_frvfdpic_finish_dynamic_sections
6914
6915 #undef elf_backend_can_make_relative_eh_frame
6916 #define elf_backend_can_make_relative_eh_frame \
6917 frvfdpic_elf_use_relative_eh_frame
6918 #undef elf_backend_can_make_lsda_relative_eh_frame
6919 #define elf_backend_can_make_lsda_relative_eh_frame \
6920 frvfdpic_elf_use_relative_eh_frame
6921 #undef elf_backend_encode_eh_address
6922 #define elf_backend_encode_eh_address \
6923 frvfdpic_elf_encode_eh_address
6924
6925 #undef elf_backend_may_use_rel_p
6926 #define elf_backend_may_use_rel_p 1
6927 #undef elf_backend_may_use_rela_p
6928 #define elf_backend_may_use_rela_p 1
6929 /* We use REL for dynamic relocations only. */
6930 #undef elf_backend_default_use_rela_p
6931 #define elf_backend_default_use_rela_p 1
6932
6933 #undef elf_backend_omit_section_dynsym
6934 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
6935
6936 #include "elf32-target.h"
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