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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, 2006, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
21
22 #include "sysdep.h"
23 #include "bfd.h"
24 #include "libbfd.h"
25 #include "elf-bfd.h"
26 #include "elf/frv.h"
27 #include "dwarf2.h"
28 #include "hashtab.h"
29
30 /* Forward declarations. */
31 static bfd_reloc_status_type elf32_frv_relocate_lo16
32 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
33 static bfd_reloc_status_type elf32_frv_relocate_hi16
34 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
35 static bfd_reloc_status_type elf32_frv_relocate_label24
36 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
37 static bfd_reloc_status_type elf32_frv_relocate_gprel12
38 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
39 bfd_byte *, bfd_vma));
40 static bfd_reloc_status_type elf32_frv_relocate_gprelu12
41 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
42 bfd_byte *, bfd_vma));
43 static bfd_reloc_status_type elf32_frv_relocate_gprello
44 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
45 bfd_byte *, bfd_vma));
46 static bfd_reloc_status_type elf32_frv_relocate_gprelhi
47 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
48 bfd_byte *, bfd_vma));
49 static reloc_howto_type *frv_reloc_type_lookup
50 PARAMS ((bfd *, bfd_reloc_code_real_type));
51 static void frv_info_to_howto_rela
52 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
53 static bfd_boolean elf32_frv_relocate_section
54 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
55 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
56 static bfd_boolean elf32_frv_add_symbol_hook
57 PARAMS (( bfd *, struct bfd_link_info *, Elf_Internal_Sym *,
58 const char **, flagword *, asection **, bfd_vma *));
59 static bfd_reloc_status_type frv_final_link_relocate
60 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
61 Elf_Internal_Rela *, bfd_vma));
62 static bfd_boolean elf32_frv_check_relocs
63 PARAMS ((bfd *, struct bfd_link_info *, asection *,
64 const Elf_Internal_Rela *));
65 static int elf32_frv_machine
66 PARAMS ((bfd *));
67 static bfd_boolean elf32_frv_object_p
68 PARAMS ((bfd *));
69 static bfd_boolean frv_elf_set_private_flags
70 PARAMS ((bfd *, flagword));
71 static bfd_boolean frv_elf_copy_private_bfd_data
72 PARAMS ((bfd *, bfd *));
73 static bfd_boolean frv_elf_merge_private_bfd_data
74 PARAMS ((bfd *, bfd *));
75 static bfd_boolean frv_elf_print_private_bfd_data
76 PARAMS ((bfd *, PTR));
77 static bfd_boolean elf32_frv_grok_prstatus (bfd * abfd,
78 Elf_Internal_Note * note);
79 static bfd_boolean elf32_frv_grok_psinfo (bfd * abfd,
80 Elf_Internal_Note * note);
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(p) \
886 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
887 == FRV_ELF_DATA ? ((struct frvfdpic_elf_link_hash_table *) ((p)->hash)) : NULL)
888
889 #define frvfdpic_got_section(info) \
890 (frvfdpic_hash_table (info)->sgot)
891 #define frvfdpic_gotrel_section(info) \
892 (frvfdpic_hash_table (info)->sgotrel)
893 #define frvfdpic_gotfixup_section(info) \
894 (frvfdpic_hash_table (info)->sgotfixup)
895 #define frvfdpic_plt_section(info) \
896 (frvfdpic_hash_table (info)->splt)
897 #define frvfdpic_pltrel_section(info) \
898 (frvfdpic_hash_table (info)->spltrel)
899 #define frvfdpic_relocs_info(info) \
900 (frvfdpic_hash_table (info)->relocs_info)
901 #define frvfdpic_got_initial_offset(info) \
902 (frvfdpic_hash_table (info)->got0)
903 #define frvfdpic_plt_initial_offset(info) \
904 (frvfdpic_hash_table (info)->plt0)
905 #define frvfdpic_dynamic_got_plt_info(info) \
906 (frvfdpic_hash_table (info)->g)
907
908 /* Currently it's the same, but if some day we have a reason to change
909 it, we'd better be using a different macro.
910
911 FIXME: if there's any TLS PLT entry that uses local-exec or
912 initial-exec models, we could use the ret at the end of any of them
913 instead of adding one more. */
914 #define frvfdpic_plt_tls_ret_offset(info) \
915 (frvfdpic_plt_initial_offset (info))
916
917 /* The name of the dynamic interpreter. This is put in the .interp
918 section. */
919
920 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
921
922 #define DEFAULT_STACK_SIZE 0x20000
923
924 /* This structure is used to collect the number of entries present in
925 each addressable range of the got. */
926 struct _frvfdpic_dynamic_got_info
927 {
928 /* Several bits of information about the current link. */
929 struct bfd_link_info *info;
930 /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
931 ranges. */
932 bfd_vma got12, gotlos, gothilo;
933 /* Total GOT size needed for function descriptor entries within the 12-,
934 16- or 32-bit ranges. */
935 bfd_vma fd12, fdlos, fdhilo;
936 /* Total GOT size needed by function descriptor entries referenced
937 in PLT entries, that would be profitable to place in offsets
938 close to the PIC register. */
939 bfd_vma fdplt;
940 /* Total PLT size needed by lazy PLT entries. */
941 bfd_vma lzplt;
942 /* Total GOT size needed for TLS descriptor entries within the 12-,
943 16- or 32-bit ranges. */
944 bfd_vma tlsd12, tlsdlos, tlsdhilo;
945 /* Total GOT size needed by TLS descriptors referenced in PLT
946 entries, that would be profitable to place in offers close to the
947 PIC register. */
948 bfd_vma tlsdplt;
949 /* Total PLT size needed by TLS lazy PLT entries. */
950 bfd_vma tlslzplt;
951 /* Number of relocations carried over from input object files. */
952 unsigned long relocs;
953 /* Number of fixups introduced by relocations in input object files. */
954 unsigned long fixups;
955 /* The number of fixups that reference the ret instruction added to
956 the PLT for locally-resolved TLS descriptors. */
957 unsigned long tls_ret_refs;
958 };
959
960 /* This structure is used to assign offsets to got entries, function
961 descriptors, plt entries and lazy plt entries. */
962
963 struct _frvfdpic_dynamic_got_plt_info
964 {
965 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
966 struct _frvfdpic_dynamic_got_info g;
967
968 /* For each addressable range, we record a MAX (positive) and MIN
969 (negative) value. CUR is used to assign got entries, and it's
970 incremented from an initial positive value to MAX, then from MIN
971 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
972 assign function descriptors, and it's decreased from an initial
973 non-positive value to MIN, then from MAX down to CUR (unless CUR
974 wraps around first). All of MIN, MAX, CUR and FDCUR always point
975 to even words. ODD, if non-zero, indicates an odd word to be
976 used for the next got entry, otherwise CUR is used and
977 incremented by a pair of words, wrapping around when it reaches
978 MAX. FDCUR is decremented (and wrapped) before the next function
979 descriptor is chosen. FDPLT indicates the number of remaining
980 slots that can be used for function descriptors used only by PLT
981 entries.
982
983 TMAX, TMIN and TCUR are used to assign TLS descriptors. TCUR
984 starts as MAX, and grows up to TMAX, then wraps around to TMIN
985 and grows up to MIN. TLSDPLT indicates the number of remaining
986 slots that can be used for TLS descriptors used only by TLS PLT
987 entries. */
988 struct _frvfdpic_dynamic_got_alloc_data
989 {
990 bfd_signed_vma max, cur, odd, fdcur, min;
991 bfd_signed_vma tmax, tcur, tmin;
992 bfd_vma fdplt, tlsdplt;
993 } got12, gotlos, gothilo;
994 };
995
996 /* Create an FRV ELF linker hash table. */
997
998 static struct bfd_link_hash_table *
999 frvfdpic_elf_link_hash_table_create (bfd *abfd)
1000 {
1001 struct frvfdpic_elf_link_hash_table *ret;
1002 bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
1003
1004 ret = bfd_zalloc (abfd, amt);
1005 if (ret == NULL)
1006 return NULL;
1007
1008 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1009 _bfd_elf_link_hash_newfunc,
1010 sizeof (struct elf_link_hash_entry),
1011 FRV_ELF_DATA))
1012 {
1013 free (ret);
1014 return NULL;
1015 }
1016
1017 return &ret->elf.root;
1018 }
1019
1020 /* Decide whether a reference to a symbol can be resolved locally or
1021 not. If the symbol is protected, we want the local address, but
1022 its function descriptor must be assigned by the dynamic linker. */
1023 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
1024 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
1025 || ! elf_hash_table (INFO)->dynamic_sections_created)
1026 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
1027 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
1028
1029 /* This structure collects information on what kind of GOT, PLT or
1030 function descriptors are required by relocations that reference a
1031 certain symbol. */
1032 struct frvfdpic_relocs_info
1033 {
1034 /* The index of the symbol, as stored in the relocation r_info, if
1035 we have a local symbol; -1 otherwise. */
1036 long symndx;
1037 union
1038 {
1039 /* The input bfd in which the symbol is defined, if it's a local
1040 symbol. */
1041 bfd *abfd;
1042 /* If symndx == -1, the hash table entry corresponding to a global
1043 symbol (even if it turns out to bind locally, in which case it
1044 should ideally be replaced with section's symndx + addend). */
1045 struct elf_link_hash_entry *h;
1046 } d;
1047 /* The addend of the relocation that references the symbol. */
1048 bfd_vma addend;
1049
1050 /* The fields above are used to identify an entry. The fields below
1051 contain information on how an entry is used and, later on, which
1052 locations it was assigned. */
1053 /* The following 3 fields record whether the symbol+addend above was
1054 ever referenced with a GOT relocation. The 12 suffix indicates a
1055 GOT12 relocation; los is used for GOTLO relocations that are not
1056 matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
1057 pairs. */
1058 unsigned got12:1;
1059 unsigned gotlos:1;
1060 unsigned gothilo:1;
1061 /* Whether a FUNCDESC relocation references symbol+addend. */
1062 unsigned fd:1;
1063 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1064 unsigned fdgot12:1;
1065 unsigned fdgotlos:1;
1066 unsigned fdgothilo:1;
1067 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1068 unsigned fdgoff12:1;
1069 unsigned fdgofflos:1;
1070 unsigned fdgoffhilo:1;
1071 /* Whether a GETTLSOFF relocation references symbol+addend. */
1072 unsigned tlsplt:1;
1073 /* FIXME: we should probably add tlspltdesc, tlspltoff and
1074 tlspltimm, to tell what kind of TLS PLT entry we're generating.
1075 We might instead just pre-compute flags telling whether the
1076 object is suitable for local exec, initial exec or general
1077 dynamic addressing, and use that all over the place. We could
1078 also try to do a better job of merging TLSOFF and TLSDESC entries
1079 in main executables, but perhaps we can get rid of TLSDESC
1080 entirely in them instead. */
1081 /* Whether a GOTTLSDESC relocation references symbol+addend. */
1082 unsigned tlsdesc12:1;
1083 unsigned tlsdesclos:1;
1084 unsigned tlsdeschilo:1;
1085 /* Whether a GOTTLSOFF relocation references symbol+addend. */
1086 unsigned tlsoff12:1;
1087 unsigned tlsofflos:1;
1088 unsigned tlsoffhilo:1;
1089 /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1090 GOTOFFHI relocations. The addend doesn't really matter, since we
1091 envision that this will only be used to check whether the symbol
1092 is mapped to the same segment as the got. */
1093 unsigned gotoff:1;
1094 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1095 unsigned call:1;
1096 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1097 relocation. */
1098 unsigned sym:1;
1099 /* Whether we need a PLT entry for a symbol. Should be implied by
1100 something like:
1101 (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
1102 unsigned plt:1;
1103 /* Whether a function descriptor should be created in this link unit
1104 for symbol+addend. Should be implied by something like:
1105 (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1106 || ((fd || fdgot12 || fdgotlos || fdgothilo)
1107 && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
1108 unsigned privfd:1;
1109 /* Whether a lazy PLT entry is needed for this symbol+addend.
1110 Should be implied by something like:
1111 (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1112 && ! (info->flags & DF_BIND_NOW)) */
1113 unsigned lazyplt:1;
1114 /* Whether we've already emitted GOT relocations and PLT entries as
1115 needed for this symbol. */
1116 unsigned done:1;
1117
1118 /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1119 R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1120 symbol+addend. */
1121 unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1122
1123 /* The number of .rofixups entries and dynamic relocations allocated
1124 for this symbol, minus any that might have already been used. */
1125 unsigned fixups, dynrelocs;
1126
1127 /* The offsets of the GOT entries assigned to symbol+addend, to the
1128 function descriptor's address, and to a function descriptor,
1129 respectively. Should be zero if unassigned. The offsets are
1130 counted from the value that will be assigned to the PIC register,
1131 not from the beginning of the .got section. */
1132 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1133 /* The offsets of the PLT entries assigned to symbol+addend,
1134 non-lazy and lazy, respectively. If unassigned, should be
1135 (bfd_vma)-1. */
1136 bfd_vma plt_entry, lzplt_entry;
1137 /* The offsets of the GOT entries for TLS offset and TLS descriptor. */
1138 bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1139 /* The offset of the TLS offset PLT entry. */
1140 bfd_vma tlsplt_entry;
1141 };
1142
1143 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
1144 static hashval_t
1145 frvfdpic_relocs_info_hash (const void *entry_)
1146 {
1147 const struct frvfdpic_relocs_info *entry = entry_;
1148
1149 return (entry->symndx == -1
1150 ? (long) entry->d.h->root.root.hash
1151 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1152 }
1153
1154 /* Test whether the key fields of two frvfdpic_relocs_info entries are
1155 identical. */
1156 static int
1157 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1158 {
1159 const struct frvfdpic_relocs_info *e1 = entry1;
1160 const struct frvfdpic_relocs_info *e2 = entry2;
1161
1162 return e1->symndx == e2->symndx && e1->addend == e2->addend
1163 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1164 }
1165
1166 /* Find or create an entry in a hash table HT that matches the key
1167 fields of the given ENTRY. If it's not found, memory for a new
1168 entry is allocated in ABFD's obstack. */
1169 static struct frvfdpic_relocs_info *
1170 frvfdpic_relocs_info_find (struct htab *ht,
1171 bfd *abfd,
1172 const struct frvfdpic_relocs_info *entry,
1173 enum insert_option insert)
1174 {
1175 struct frvfdpic_relocs_info **loc =
1176 (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1177
1178 if (! loc)
1179 return NULL;
1180
1181 if (*loc)
1182 return *loc;
1183
1184 *loc = bfd_zalloc (abfd, sizeof (**loc));
1185
1186 if (! *loc)
1187 return *loc;
1188
1189 (*loc)->symndx = entry->symndx;
1190 (*loc)->d = entry->d;
1191 (*loc)->addend = entry->addend;
1192 (*loc)->plt_entry = (bfd_vma)-1;
1193 (*loc)->lzplt_entry = (bfd_vma)-1;
1194 (*loc)->tlsplt_entry = (bfd_vma)-1;
1195
1196 return *loc;
1197 }
1198
1199 /* Obtain the address of the entry in HT associated with H's symbol +
1200 addend, creating a new entry if none existed. ABFD is only used
1201 for memory allocation purposes. */
1202 inline static struct frvfdpic_relocs_info *
1203 frvfdpic_relocs_info_for_global (struct htab *ht,
1204 bfd *abfd,
1205 struct elf_link_hash_entry *h,
1206 bfd_vma addend,
1207 enum insert_option insert)
1208 {
1209 struct frvfdpic_relocs_info entry;
1210
1211 entry.symndx = -1;
1212 entry.d.h = h;
1213 entry.addend = addend;
1214
1215 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1216 }
1217
1218 /* Obtain the address of the entry in HT associated with the SYMNDXth
1219 local symbol of the input bfd ABFD, plus the addend, creating a new
1220 entry if none existed. */
1221 inline static struct frvfdpic_relocs_info *
1222 frvfdpic_relocs_info_for_local (struct htab *ht,
1223 bfd *abfd,
1224 long symndx,
1225 bfd_vma addend,
1226 enum insert_option insert)
1227 {
1228 struct frvfdpic_relocs_info entry;
1229
1230 entry.symndx = symndx;
1231 entry.d.abfd = abfd;
1232 entry.addend = addend;
1233
1234 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1235 }
1236
1237 /* Merge fields set by check_relocs() of two entries that end up being
1238 mapped to the same (presumably global) symbol. */
1239
1240 inline static void
1241 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1242 struct frvfdpic_relocs_info const *e1)
1243 {
1244 e2->got12 |= e1->got12;
1245 e2->gotlos |= e1->gotlos;
1246 e2->gothilo |= e1->gothilo;
1247 e2->fd |= e1->fd;
1248 e2->fdgot12 |= e1->fdgot12;
1249 e2->fdgotlos |= e1->fdgotlos;
1250 e2->fdgothilo |= e1->fdgothilo;
1251 e2->fdgoff12 |= e1->fdgoff12;
1252 e2->fdgofflos |= e1->fdgofflos;
1253 e2->fdgoffhilo |= e1->fdgoffhilo;
1254 e2->tlsplt |= e1->tlsplt;
1255 e2->tlsdesc12 |= e1->tlsdesc12;
1256 e2->tlsdesclos |= e1->tlsdesclos;
1257 e2->tlsdeschilo |= e1->tlsdeschilo;
1258 e2->tlsoff12 |= e1->tlsoff12;
1259 e2->tlsofflos |= e1->tlsofflos;
1260 e2->tlsoffhilo |= e1->tlsoffhilo;
1261 e2->gotoff |= e1->gotoff;
1262 e2->call |= e1->call;
1263 e2->sym |= e1->sym;
1264 }
1265
1266 /* Every block of 65535 lazy PLT entries shares a single call to the
1267 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1268 32767, counting from 0). All other lazy PLT entries branch to it
1269 in a single instruction. */
1270
1271 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1272 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1273
1274 /* Add a dynamic relocation to the SRELOC section. */
1275
1276 inline static bfd_vma
1277 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1278 int reloc_type, long dynindx, bfd_vma addend,
1279 struct frvfdpic_relocs_info *entry)
1280 {
1281 Elf_Internal_Rela outrel;
1282 bfd_vma reloc_offset;
1283
1284 outrel.r_offset = offset;
1285 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1286 outrel.r_addend = addend;
1287
1288 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1289 BFD_ASSERT (reloc_offset < sreloc->size);
1290 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1291 sreloc->contents + reloc_offset);
1292 sreloc->reloc_count++;
1293
1294 /* If the entry's index is zero, this relocation was probably to a
1295 linkonce section that got discarded. We reserved a dynamic
1296 relocation, but it was for another entry than the one we got at
1297 the time of emitting the relocation. Unfortunately there's no
1298 simple way for us to catch this situation, since the relocation
1299 is cleared right before calling relocate_section, at which point
1300 we no longer know what the relocation used to point to. */
1301 if (entry->symndx)
1302 {
1303 BFD_ASSERT (entry->dynrelocs > 0);
1304 entry->dynrelocs--;
1305 }
1306
1307 return reloc_offset;
1308 }
1309
1310 /* Add a fixup to the ROFIXUP section. */
1311
1312 static bfd_vma
1313 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1314 struct frvfdpic_relocs_info *entry)
1315 {
1316 bfd_vma fixup_offset;
1317
1318 if (rofixup->flags & SEC_EXCLUDE)
1319 return -1;
1320
1321 fixup_offset = rofixup->reloc_count * 4;
1322 if (rofixup->contents)
1323 {
1324 BFD_ASSERT (fixup_offset < rofixup->size);
1325 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1326 }
1327 rofixup->reloc_count++;
1328
1329 if (entry && entry->symndx)
1330 {
1331 /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1332 above. */
1333 BFD_ASSERT (entry->fixups > 0);
1334 entry->fixups--;
1335 }
1336
1337 return fixup_offset;
1338 }
1339
1340 /* Find the segment number in which OSEC, and output section, is
1341 located. */
1342
1343 static unsigned
1344 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1345 {
1346 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
1347
1348 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
1349 }
1350
1351 inline static bfd_boolean
1352 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1353 {
1354 unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1355
1356 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1357 }
1358
1359 #define FRVFDPIC_TLS_BIAS (2048 - 16)
1360
1361 /* Return the base VMA address which should be subtracted from real addresses
1362 when resolving TLSMOFF relocation.
1363 This is PT_TLS segment p_vaddr, plus the 2048-16 bias. */
1364
1365 static bfd_vma
1366 tls_biased_base (struct bfd_link_info *info)
1367 {
1368 /* If tls_sec is NULL, we should have signalled an error already. */
1369 if (elf_hash_table (info)->tls_sec == NULL)
1370 return FRVFDPIC_TLS_BIAS;
1371 return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1372 }
1373
1374 /* Generate relocations for GOT entries, function descriptors, and
1375 code for PLT and lazy PLT entries. */
1376
1377 inline static bfd_boolean
1378 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1379 bfd *output_bfd,
1380 struct bfd_link_info *info,
1381 asection *sec,
1382 Elf_Internal_Sym *sym,
1383 bfd_vma addend)
1384
1385 {
1386 bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1387 int dynindx = -1;
1388
1389 if (entry->done)
1390 return TRUE;
1391 entry->done = 1;
1392
1393 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1394 || entry->tlsoff_entry || entry->tlsdesc_entry)
1395 {
1396 /* If the symbol is dynamic, consider it for dynamic
1397 relocations, otherwise decay to section + offset. */
1398 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1399 dynindx = entry->d.h->dynindx;
1400 else
1401 {
1402 if (sec
1403 && sec->output_section
1404 && ! bfd_is_abs_section (sec->output_section)
1405 && ! bfd_is_und_section (sec->output_section))
1406 dynindx = elf_section_data (sec->output_section)->dynindx;
1407 else
1408 dynindx = 0;
1409 }
1410 }
1411
1412 /* Generate relocation for GOT entry pointing to the symbol. */
1413 if (entry->got_entry)
1414 {
1415 int idx = dynindx;
1416 bfd_vma ad = addend;
1417
1418 /* If the symbol is dynamic but binds locally, use
1419 section+offset. */
1420 if (sec && (entry->symndx != -1
1421 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1422 {
1423 if (entry->symndx == -1)
1424 ad += entry->d.h->root.u.def.value;
1425 else
1426 ad += sym->st_value;
1427 ad += sec->output_offset;
1428 if (sec->output_section && elf_section_data (sec->output_section))
1429 idx = elf_section_data (sec->output_section)->dynindx;
1430 else
1431 idx = 0;
1432 }
1433
1434 /* If we're linking an executable at a fixed address, we can
1435 omit the dynamic relocation as long as the symbol is local to
1436 this module. */
1437 if (info->executable && !info->pie
1438 && (entry->symndx != -1
1439 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1440 {
1441 if (sec)
1442 ad += sec->output_section->vma;
1443 if (entry->symndx != -1
1444 || entry->d.h->root.type != bfd_link_hash_undefweak)
1445 _frvfdpic_add_rofixup (output_bfd,
1446 frvfdpic_gotfixup_section (info),
1447 frvfdpic_got_section (info)->output_section
1448 ->vma
1449 + frvfdpic_got_section (info)->output_offset
1450 + frvfdpic_got_initial_offset (info)
1451 + entry->got_entry, entry);
1452 }
1453 else
1454 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1455 _bfd_elf_section_offset
1456 (output_bfd, info,
1457 frvfdpic_got_section (info),
1458 frvfdpic_got_initial_offset (info)
1459 + entry->got_entry)
1460 + frvfdpic_got_section (info)
1461 ->output_section->vma
1462 + frvfdpic_got_section (info)->output_offset,
1463 R_FRV_32, idx, ad, entry);
1464
1465 bfd_put_32 (output_bfd, ad,
1466 frvfdpic_got_section (info)->contents
1467 + frvfdpic_got_initial_offset (info)
1468 + entry->got_entry);
1469 }
1470
1471 /* Generate relocation for GOT entry pointing to a canonical
1472 function descriptor. */
1473 if (entry->fdgot_entry)
1474 {
1475 int reloc, idx;
1476 bfd_vma ad = 0;
1477
1478 if (! (entry->symndx == -1
1479 && entry->d.h->root.type == bfd_link_hash_undefweak
1480 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1481 {
1482 /* If the symbol is dynamic and there may be dynamic symbol
1483 resolution because we are, or are linked with, a shared
1484 library, emit a FUNCDESC relocation such that the dynamic
1485 linker will allocate the function descriptor. If the
1486 symbol needs a non-local function descriptor but binds
1487 locally (e.g., its visibility is protected, emit a
1488 dynamic relocation decayed to section+offset. */
1489 if (entry->symndx == -1
1490 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1491 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1492 && !(info->executable && !info->pie))
1493 {
1494 reloc = R_FRV_FUNCDESC;
1495 idx = elf_section_data (entry->d.h->root.u.def.section
1496 ->output_section)->dynindx;
1497 ad = entry->d.h->root.u.def.section->output_offset
1498 + entry->d.h->root.u.def.value;
1499 }
1500 else if (entry->symndx == -1
1501 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1502 {
1503 reloc = R_FRV_FUNCDESC;
1504 idx = dynindx;
1505 ad = addend;
1506 if (ad)
1507 {
1508 (*info->callbacks->reloc_dangerous)
1509 (info, _("relocation requires zero addend"),
1510 elf_hash_table (info)->dynobj,
1511 frvfdpic_got_section (info),
1512 entry->fdgot_entry);
1513 return FALSE;
1514 }
1515 }
1516 else
1517 {
1518 /* Otherwise, we know we have a private function descriptor,
1519 so reference it directly. */
1520 if (elf_hash_table (info)->dynamic_sections_created)
1521 BFD_ASSERT (entry->privfd);
1522 reloc = R_FRV_32;
1523 idx = elf_section_data (frvfdpic_got_section (info)
1524 ->output_section)->dynindx;
1525 ad = frvfdpic_got_section (info)->output_offset
1526 + frvfdpic_got_initial_offset (info) + entry->fd_entry;
1527 }
1528
1529 /* If there is room for dynamic symbol resolution, emit the
1530 dynamic relocation. However, if we're linking an
1531 executable at a fixed location, we won't have emitted a
1532 dynamic symbol entry for the got section, so idx will be
1533 zero, which means we can and should compute the address
1534 of the private descriptor ourselves. */
1535 if (info->executable && !info->pie
1536 && (entry->symndx != -1
1537 || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1538 {
1539 ad += frvfdpic_got_section (info)->output_section->vma;
1540 _frvfdpic_add_rofixup (output_bfd,
1541 frvfdpic_gotfixup_section (info),
1542 frvfdpic_got_section (info)
1543 ->output_section->vma
1544 + frvfdpic_got_section (info)
1545 ->output_offset
1546 + frvfdpic_got_initial_offset (info)
1547 + entry->fdgot_entry, entry);
1548 }
1549 else
1550 _frvfdpic_add_dyn_reloc (output_bfd,
1551 frvfdpic_gotrel_section (info),
1552 _bfd_elf_section_offset
1553 (output_bfd, info,
1554 frvfdpic_got_section (info),
1555 frvfdpic_got_initial_offset (info)
1556 + entry->fdgot_entry)
1557 + frvfdpic_got_section (info)
1558 ->output_section->vma
1559 + frvfdpic_got_section (info)
1560 ->output_offset,
1561 reloc, idx, ad, entry);
1562 }
1563
1564 bfd_put_32 (output_bfd, ad,
1565 frvfdpic_got_section (info)->contents
1566 + frvfdpic_got_initial_offset (info)
1567 + entry->fdgot_entry);
1568 }
1569
1570 /* Generate relocation to fill in a private function descriptor in
1571 the GOT. */
1572 if (entry->fd_entry)
1573 {
1574 int idx = dynindx;
1575 bfd_vma ad = addend;
1576 bfd_vma ofst;
1577 long lowword, highword;
1578
1579 /* If the symbol is dynamic but binds locally, use
1580 section+offset. */
1581 if (sec && (entry->symndx != -1
1582 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1583 {
1584 if (entry->symndx == -1)
1585 ad += entry->d.h->root.u.def.value;
1586 else
1587 ad += sym->st_value;
1588 ad += sec->output_offset;
1589 if (sec->output_section && elf_section_data (sec->output_section))
1590 idx = elf_section_data (sec->output_section)->dynindx;
1591 else
1592 idx = 0;
1593 }
1594
1595 /* If we're linking an executable at a fixed address, we can
1596 omit the dynamic relocation as long as the symbol is local to
1597 this module. */
1598 if (info->executable && !info->pie
1599 && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1600 {
1601 if (sec)
1602 ad += sec->output_section->vma;
1603 ofst = 0;
1604 if (entry->symndx != -1
1605 || entry->d.h->root.type != bfd_link_hash_undefweak)
1606 {
1607 _frvfdpic_add_rofixup (output_bfd,
1608 frvfdpic_gotfixup_section (info),
1609 frvfdpic_got_section (info)
1610 ->output_section->vma
1611 + frvfdpic_got_section (info)
1612 ->output_offset
1613 + frvfdpic_got_initial_offset (info)
1614 + entry->fd_entry, entry);
1615 _frvfdpic_add_rofixup (output_bfd,
1616 frvfdpic_gotfixup_section (info),
1617 frvfdpic_got_section (info)
1618 ->output_section->vma
1619 + frvfdpic_got_section (info)
1620 ->output_offset
1621 + frvfdpic_got_initial_offset (info)
1622 + entry->fd_entry + 4, entry);
1623 }
1624 }
1625 else
1626 {
1627 ofst =
1628 _frvfdpic_add_dyn_reloc (output_bfd,
1629 entry->lazyplt
1630 ? frvfdpic_pltrel_section (info)
1631 : frvfdpic_gotrel_section (info),
1632 _bfd_elf_section_offset
1633 (output_bfd, info,
1634 frvfdpic_got_section (info),
1635 frvfdpic_got_initial_offset (info)
1636 + entry->fd_entry)
1637 + frvfdpic_got_section (info)
1638 ->output_section->vma
1639 + frvfdpic_got_section (info)
1640 ->output_offset,
1641 R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1642 }
1643
1644 /* If we've omitted the dynamic relocation, just emit the fixed
1645 addresses of the symbol and of the local GOT base offset. */
1646 if (info->executable && !info->pie && sec && sec->output_section)
1647 {
1648 lowword = ad;
1649 highword = frvfdpic_got_section (info)->output_section->vma
1650 + frvfdpic_got_section (info)->output_offset
1651 + frvfdpic_got_initial_offset (info);
1652 }
1653 else if (entry->lazyplt)
1654 {
1655 if (ad)
1656 {
1657 (*info->callbacks->reloc_dangerous)
1658 (info, _("relocation requires zero addend"),
1659 elf_hash_table (info)->dynobj,
1660 frvfdpic_got_section (info),
1661 entry->fd_entry);
1662 return FALSE;
1663 }
1664
1665 fd_lazy_rel_offset = ofst;
1666
1667 /* A function descriptor used for lazy or local resolving is
1668 initialized such that its high word contains the output
1669 section index in which the PLT entries are located, and
1670 the low word contains the address of the lazy PLT entry
1671 entry point, that must be within the memory region
1672 assigned to that section. */
1673 lowword = entry->lzplt_entry + 4
1674 + frvfdpic_plt_section (info)->output_offset
1675 + frvfdpic_plt_section (info)->output_section->vma;
1676 highword = _frvfdpic_osec_to_segment
1677 (output_bfd, frvfdpic_plt_section (info)->output_section);
1678 }
1679 else
1680 {
1681 /* A function descriptor for a local function gets the index
1682 of the section. For a non-local function, it's
1683 disregarded. */
1684 lowword = ad;
1685 if (sec == NULL
1686 || (entry->symndx == -1 && entry->d.h->dynindx != -1
1687 && entry->d.h->dynindx == idx))
1688 highword = 0;
1689 else
1690 highword = _frvfdpic_osec_to_segment
1691 (output_bfd, sec->output_section);
1692 }
1693
1694 bfd_put_32 (output_bfd, lowword,
1695 frvfdpic_got_section (info)->contents
1696 + frvfdpic_got_initial_offset (info)
1697 + entry->fd_entry);
1698 bfd_put_32 (output_bfd, highword,
1699 frvfdpic_got_section (info)->contents
1700 + frvfdpic_got_initial_offset (info)
1701 + entry->fd_entry + 4);
1702 }
1703
1704 /* Generate code for the PLT entry. */
1705 if (entry->plt_entry != (bfd_vma) -1)
1706 {
1707 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1708 + entry->plt_entry;
1709
1710 BFD_ASSERT (entry->fd_entry);
1711
1712 /* Figure out what kind of PLT entry we need, depending on the
1713 location of the function descriptor within the GOT. */
1714 if (entry->fd_entry >= -(1 << (12 - 1))
1715 && entry->fd_entry < (1 << (12 - 1)))
1716 {
1717 /* lddi @(gr15, fd_entry), gr14 */
1718 bfd_put_32 (output_bfd,
1719 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1720 plt_code);
1721 plt_code += 4;
1722 }
1723 else
1724 {
1725 if (entry->fd_entry >= -(1 << (16 - 1))
1726 && entry->fd_entry < (1 << (16 - 1)))
1727 {
1728 /* setlos lo(fd_entry), gr14 */
1729 bfd_put_32 (output_bfd,
1730 0x9cfc0000
1731 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1732 plt_code);
1733 plt_code += 4;
1734 }
1735 else
1736 {
1737 /* sethi.p hi(fd_entry), gr14
1738 setlo lo(fd_entry), gr14 */
1739 bfd_put_32 (output_bfd,
1740 0x1cf80000
1741 | ((entry->fd_entry >> 16)
1742 & (((bfd_vma)1 << 16) - 1)),
1743 plt_code);
1744 plt_code += 4;
1745 bfd_put_32 (output_bfd,
1746 0x9cf40000
1747 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1748 plt_code);
1749 plt_code += 4;
1750 }
1751 /* ldd @(gr14,gr15),gr14 */
1752 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1753 plt_code += 4;
1754 }
1755 /* jmpl @(gr14,gr0) */
1756 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1757 }
1758
1759 /* Generate code for the lazy PLT entry. */
1760 if (entry->lzplt_entry != (bfd_vma) -1)
1761 {
1762 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1763 + entry->lzplt_entry;
1764 bfd_vma resolverStub_addr;
1765
1766 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1767 lzplt_code += 4;
1768
1769 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1770 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1771 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1772 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1773
1774 if (entry->lzplt_entry == resolverStub_addr)
1775 {
1776 /* This is a lazy PLT entry that includes a resolver call. */
1777 /* ldd @(gr15,gr0), gr4
1778 jmpl @(gr4,gr0) */
1779 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1780 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1781 }
1782 else
1783 {
1784 /* bra resolverStub */
1785 bfd_put_32 (output_bfd,
1786 0xc01a0000
1787 | (((resolverStub_addr - entry->lzplt_entry)
1788 / 4) & (((bfd_vma)1 << 16) - 1)),
1789 lzplt_code);
1790 }
1791 }
1792
1793 /* Generate relocation for GOT entry holding the TLS offset. */
1794 if (entry->tlsoff_entry)
1795 {
1796 int idx = dynindx;
1797 bfd_vma ad = addend;
1798
1799 if (entry->symndx != -1
1800 || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1801 {
1802 /* If the symbol is dynamic but binds locally, use
1803 section+offset. */
1804 if (sec)
1805 {
1806 if (entry->symndx == -1)
1807 ad += entry->d.h->root.u.def.value;
1808 else
1809 ad += sym->st_value;
1810 ad += sec->output_offset;
1811 if (sec->output_section
1812 && elf_section_data (sec->output_section))
1813 idx = elf_section_data (sec->output_section)->dynindx;
1814 else
1815 idx = 0;
1816 }
1817 }
1818
1819 /* *ABS*+addend is special for TLS relocations, use only the
1820 addend. */
1821 if (info->executable
1822 && idx == 0
1823 && (bfd_is_abs_section (sec)
1824 || bfd_is_und_section (sec)))
1825 ;
1826 /* If we're linking an executable, we can entirely omit the
1827 dynamic relocation if the symbol is local to this module. */
1828 else if (info->executable
1829 && (entry->symndx != -1
1830 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1831 {
1832 if (sec)
1833 ad += sec->output_section->vma - tls_biased_base (info);
1834 }
1835 else
1836 {
1837 if (idx == 0
1838 && (bfd_is_abs_section (sec)
1839 || bfd_is_und_section (sec)))
1840 {
1841 if (! elf_hash_table (info)->tls_sec)
1842 {
1843 (*info->callbacks->undefined_symbol)
1844 (info, "TLS section", elf_hash_table (info)->dynobj,
1845 frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1846 return FALSE;
1847 }
1848 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1849 ad += FRVFDPIC_TLS_BIAS;
1850 }
1851 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1852 _bfd_elf_section_offset
1853 (output_bfd, info,
1854 frvfdpic_got_section (info),
1855 frvfdpic_got_initial_offset (info)
1856 + entry->tlsoff_entry)
1857 + frvfdpic_got_section (info)
1858 ->output_section->vma
1859 + frvfdpic_got_section (info)
1860 ->output_offset,
1861 R_FRV_TLSOFF, idx, ad, entry);
1862 }
1863
1864 bfd_put_32 (output_bfd, ad,
1865 frvfdpic_got_section (info)->contents
1866 + frvfdpic_got_initial_offset (info)
1867 + entry->tlsoff_entry);
1868 }
1869
1870 if (entry->tlsdesc_entry)
1871 {
1872 int idx = dynindx;
1873 bfd_vma ad = addend;
1874
1875 /* If the symbol is dynamic but binds locally, use
1876 section+offset. */
1877 if (sec && (entry->symndx != -1
1878 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1879 {
1880 if (entry->symndx == -1)
1881 ad += entry->d.h->root.u.def.value;
1882 else
1883 ad += sym->st_value;
1884 ad += sec->output_offset;
1885 if (sec->output_section && elf_section_data (sec->output_section))
1886 idx = elf_section_data (sec->output_section)->dynindx;
1887 else
1888 idx = 0;
1889 }
1890
1891 /* If we didn't set up a TLS offset entry, but we're linking an
1892 executable and the symbol binds locally, we can use the
1893 module offset in the TLS descriptor in relaxations. */
1894 if (info->executable && ! entry->tlsoff_entry)
1895 entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1896
1897 if (info->executable && !info->pie
1898 && ((idx == 0
1899 && (bfd_is_abs_section (sec)
1900 || bfd_is_und_section (sec)))
1901 || entry->symndx != -1
1902 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1903 {
1904 /* *ABS*+addend is special for TLS relocations, use only the
1905 addend for the TLS offset, and take the module id as
1906 0. */
1907 if (idx == 0
1908 && (bfd_is_abs_section (sec)
1909 || bfd_is_und_section (sec)))
1910 ;
1911 /* For other TLS symbols that bind locally, add the section
1912 TLS offset to the addend. */
1913 else if (sec)
1914 ad += sec->output_section->vma - tls_biased_base (info);
1915
1916 bfd_put_32 (output_bfd,
1917 frvfdpic_plt_section (info)->output_section->vma
1918 + frvfdpic_plt_section (info)->output_offset
1919 + frvfdpic_plt_tls_ret_offset (info),
1920 frvfdpic_got_section (info)->contents
1921 + frvfdpic_got_initial_offset (info)
1922 + entry->tlsdesc_entry);
1923
1924 _frvfdpic_add_rofixup (output_bfd,
1925 frvfdpic_gotfixup_section (info),
1926 frvfdpic_got_section (info)
1927 ->output_section->vma
1928 + frvfdpic_got_section (info)
1929 ->output_offset
1930 + frvfdpic_got_initial_offset (info)
1931 + entry->tlsdesc_entry, entry);
1932
1933 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1934
1935 /* We've used one of the reserved fixups, so discount it so
1936 that we can check at the end that we've used them
1937 all. */
1938 frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1939
1940 /* While at that, make sure the ret instruction makes to the
1941 right location in the PLT. We could do it only when we
1942 got to 0, but since the check at the end will only print
1943 a warning, make sure we have the ret in place in case the
1944 warning is missed. */
1945 bfd_put_32 (output_bfd, 0xc03a4000,
1946 frvfdpic_plt_section (info)->contents
1947 + frvfdpic_plt_tls_ret_offset (info));
1948 }
1949 else
1950 {
1951 if (idx == 0
1952 && (bfd_is_abs_section (sec)
1953 || bfd_is_und_section (sec)))
1954 {
1955 if (! elf_hash_table (info)->tls_sec)
1956 {
1957 (*info->callbacks->undefined_symbol)
1958 (info, "TLS section", elf_hash_table (info)->dynobj,
1959 frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1960 return FALSE;
1961 }
1962 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1963 ad += FRVFDPIC_TLS_BIAS;
1964 }
1965
1966 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1967 _bfd_elf_section_offset
1968 (output_bfd, info,
1969 frvfdpic_got_section (info),
1970 frvfdpic_got_initial_offset (info)
1971 + entry->tlsdesc_entry)
1972 + frvfdpic_got_section (info)
1973 ->output_section->vma
1974 + frvfdpic_got_section (info)
1975 ->output_offset,
1976 R_FRV_TLSDESC_VALUE, idx, ad, entry);
1977
1978 bfd_put_32 (output_bfd, 0,
1979 frvfdpic_got_section (info)->contents
1980 + frvfdpic_got_initial_offset (info)
1981 + entry->tlsdesc_entry);
1982 }
1983
1984 bfd_put_32 (output_bfd, ad,
1985 frvfdpic_got_section (info)->contents
1986 + frvfdpic_got_initial_offset (info)
1987 + entry->tlsdesc_entry + 4);
1988 }
1989
1990 /* Generate code for the get-TLS-offset PLT entry. */
1991 if (entry->tlsplt_entry != (bfd_vma) -1)
1992 {
1993 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1994 + entry->tlsplt_entry;
1995
1996 if (info->executable
1997 && (entry->symndx != -1
1998 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1999 {
2000 int idx = dynindx;
2001 bfd_vma ad = addend;
2002
2003 /* sec may be NULL when referencing an undefweak symbol
2004 while linking a static executable. */
2005 if (!sec)
2006 {
2007 BFD_ASSERT (entry->symndx == -1
2008 && entry->d.h->root.type == bfd_link_hash_undefweak);
2009 }
2010 else
2011 {
2012 if (entry->symndx == -1)
2013 ad += entry->d.h->root.u.def.value;
2014 else
2015 ad += sym->st_value;
2016 ad += sec->output_offset;
2017 if (sec->output_section
2018 && elf_section_data (sec->output_section))
2019 idx = elf_section_data (sec->output_section)->dynindx;
2020 else
2021 idx = 0;
2022 }
2023
2024 /* *ABS*+addend is special for TLS relocations, use only the
2025 addend for the TLS offset, and take the module id as
2026 0. */
2027 if (idx == 0
2028 && (bfd_is_abs_section (sec)
2029 || bfd_is_und_section (sec)))
2030 ;
2031 /* For other TLS symbols that bind locally, add the section
2032 TLS offset to the addend. */
2033 else if (sec)
2034 ad += sec->output_section->vma - tls_biased_base (info);
2035
2036 if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
2037 && (bfd_signed_vma)ad < (1 << (16 - 1)))
2038 {
2039 /* setlos lo(ad), gr9 */
2040 bfd_put_32 (output_bfd,
2041 0x92fc0000
2042 | (ad
2043 & (((bfd_vma)1 << 16) - 1)),
2044 plt_code);
2045 plt_code += 4;
2046 }
2047 else
2048 {
2049 /* sethi.p hi(ad), gr9
2050 setlo lo(ad), gr9 */
2051 bfd_put_32 (output_bfd,
2052 0x12f80000
2053 | ((ad >> 16)
2054 & (((bfd_vma)1 << 16) - 1)),
2055 plt_code);
2056 plt_code += 4;
2057 bfd_put_32 (output_bfd,
2058 0x92f40000
2059 | (ad
2060 & (((bfd_vma)1 << 16) - 1)),
2061 plt_code);
2062 plt_code += 4;
2063 }
2064 /* ret */
2065 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2066 }
2067 else if (entry->tlsoff_entry)
2068 {
2069 /* Figure out what kind of PLT entry we need, depending on the
2070 location of the TLS descriptor within the GOT. */
2071 if (entry->tlsoff_entry >= -(1 << (12 - 1))
2072 && entry->tlsoff_entry < (1 << (12 - 1)))
2073 {
2074 /* ldi @(gr15, tlsoff_entry), gr9 */
2075 bfd_put_32 (output_bfd,
2076 0x92c8f000 | (entry->tlsoff_entry
2077 & ((1 << 12) - 1)),
2078 plt_code);
2079 plt_code += 4;
2080 }
2081 else
2082 {
2083 if (entry->tlsoff_entry >= -(1 << (16 - 1))
2084 && entry->tlsoff_entry < (1 << (16 - 1)))
2085 {
2086 /* setlos lo(tlsoff_entry), gr8 */
2087 bfd_put_32 (output_bfd,
2088 0x90fc0000
2089 | (entry->tlsoff_entry
2090 & (((bfd_vma)1 << 16) - 1)),
2091 plt_code);
2092 plt_code += 4;
2093 }
2094 else
2095 {
2096 /* sethi.p hi(tlsoff_entry), gr8
2097 setlo lo(tlsoff_entry), gr8 */
2098 bfd_put_32 (output_bfd,
2099 0x10f80000
2100 | ((entry->tlsoff_entry >> 16)
2101 & (((bfd_vma)1 << 16) - 1)),
2102 plt_code);
2103 plt_code += 4;
2104 bfd_put_32 (output_bfd,
2105 0x90f40000
2106 | (entry->tlsoff_entry
2107 & (((bfd_vma)1 << 16) - 1)),
2108 plt_code);
2109 plt_code += 4;
2110 }
2111 /* ld @(gr15,gr8),gr9 */
2112 bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2113 plt_code += 4;
2114 }
2115 /* ret */
2116 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2117 }
2118 else
2119 {
2120 BFD_ASSERT (entry->tlsdesc_entry);
2121
2122 /* Figure out what kind of PLT entry we need, depending on the
2123 location of the TLS descriptor within the GOT. */
2124 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2125 && entry->tlsdesc_entry < (1 << (12 - 1)))
2126 {
2127 /* lddi @(gr15, tlsdesc_entry), gr8 */
2128 bfd_put_32 (output_bfd,
2129 0x90ccf000 | (entry->tlsdesc_entry
2130 & ((1 << 12) - 1)),
2131 plt_code);
2132 plt_code += 4;
2133 }
2134 else
2135 {
2136 if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2137 && entry->tlsdesc_entry < (1 << (16 - 1)))
2138 {
2139 /* setlos lo(tlsdesc_entry), gr8 */
2140 bfd_put_32 (output_bfd,
2141 0x90fc0000
2142 | (entry->tlsdesc_entry
2143 & (((bfd_vma)1 << 16) - 1)),
2144 plt_code);
2145 plt_code += 4;
2146 }
2147 else
2148 {
2149 /* sethi.p hi(tlsdesc_entry), gr8
2150 setlo lo(tlsdesc_entry), gr8 */
2151 bfd_put_32 (output_bfd,
2152 0x10f80000
2153 | ((entry->tlsdesc_entry >> 16)
2154 & (((bfd_vma)1 << 16) - 1)),
2155 plt_code);
2156 plt_code += 4;
2157 bfd_put_32 (output_bfd,
2158 0x90f40000
2159 | (entry->tlsdesc_entry
2160 & (((bfd_vma)1 << 16) - 1)),
2161 plt_code);
2162 plt_code += 4;
2163 }
2164 /* ldd @(gr15,gr8),gr8 */
2165 bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2166 plt_code += 4;
2167 }
2168 /* jmpl @(gr8,gr0) */
2169 bfd_put_32 (output_bfd, 0x80308000, plt_code);
2170 }
2171 }
2172
2173 return TRUE;
2174 }
2175
2176 /* Handle an FRV small data reloc. */
2177
2178 static bfd_reloc_status_type
2179 elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation,
2180 contents, value)
2181 struct bfd_link_info *info;
2182 bfd *input_bfd;
2183 asection *input_section;
2184 Elf_Internal_Rela *relocation;
2185 bfd_byte *contents;
2186 bfd_vma value;
2187 {
2188 bfd_vma insn;
2189 bfd_vma gp;
2190 struct bfd_link_hash_entry *h;
2191
2192 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2193
2194 gp = (h->u.def.value
2195 + h->u.def.section->output_section->vma
2196 + h->u.def.section->output_offset);
2197
2198 value -= input_section->output_section->vma;
2199 value -= (gp - input_section->output_section->vma);
2200
2201 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2202
2203 value += relocation->r_addend;
2204
2205 if ((long) value > 0x7ff || (long) value < -0x800)
2206 return bfd_reloc_overflow;
2207
2208 bfd_put_32 (input_bfd,
2209 (insn & 0xfffff000) | (value & 0xfff),
2210 contents + relocation->r_offset);
2211
2212 return bfd_reloc_ok;
2213 }
2214
2215 /* Handle an FRV small data reloc. for the u12 field. */
2216
2217 static bfd_reloc_status_type
2218 elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation,
2219 contents, value)
2220 struct bfd_link_info *info;
2221 bfd *input_bfd;
2222 asection *input_section;
2223 Elf_Internal_Rela *relocation;
2224 bfd_byte *contents;
2225 bfd_vma value;
2226 {
2227 bfd_vma insn;
2228 bfd_vma gp;
2229 struct bfd_link_hash_entry *h;
2230 bfd_vma mask;
2231
2232 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2233
2234 gp = (h->u.def.value
2235 + h->u.def.section->output_section->vma
2236 + h->u.def.section->output_offset);
2237
2238 value -= input_section->output_section->vma;
2239 value -= (gp - input_section->output_section->vma);
2240
2241 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2242
2243 value += relocation->r_addend;
2244
2245 if ((long) value > 0x7ff || (long) value < -0x800)
2246 return bfd_reloc_overflow;
2247
2248 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
2249 mask = 0x3f03f;
2250 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2251
2252 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2253
2254 return bfd_reloc_ok;
2255 }
2256
2257 /* Handle an FRV ELF HI16 reloc. */
2258
2259 static bfd_reloc_status_type
2260 elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value)
2261 bfd *input_bfd;
2262 Elf_Internal_Rela *relhi;
2263 bfd_byte *contents;
2264 bfd_vma value;
2265 {
2266 bfd_vma insn;
2267
2268 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2269
2270 value += relhi->r_addend;
2271 value = ((value >> 16) & 0xffff);
2272
2273 insn = (insn & 0xffff0000) | value;
2274
2275 if ((long) value > 0xffff || (long) value < -0x10000)
2276 return bfd_reloc_overflow;
2277
2278 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2279 return bfd_reloc_ok;
2280
2281 }
2282 static bfd_reloc_status_type
2283 elf32_frv_relocate_lo16 (input_bfd, rello, contents, value)
2284 bfd *input_bfd;
2285 Elf_Internal_Rela *rello;
2286 bfd_byte *contents;
2287 bfd_vma value;
2288 {
2289 bfd_vma insn;
2290
2291 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2292
2293 value += rello->r_addend;
2294 value = value & 0xffff;
2295
2296 insn = (insn & 0xffff0000) | value;
2297
2298 if ((long) value > 0xffff || (long) value < -0x10000)
2299 return bfd_reloc_overflow;
2300
2301 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2302 return bfd_reloc_ok;
2303 }
2304
2305 /* Perform the relocation for the CALL label24 instruction. */
2306
2307 static bfd_reloc_status_type
2308 elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value)
2309 bfd *input_bfd;
2310 asection *input_section;
2311 Elf_Internal_Rela *rello;
2312 bfd_byte *contents;
2313 bfd_vma value;
2314 {
2315 bfd_vma insn;
2316 bfd_vma label6;
2317 bfd_vma label18;
2318
2319 /* The format for the call instruction is:
2320
2321 0 000000 0001111 000000000000000000
2322 label6 opcode label18
2323
2324 The branch calculation is: pc + (4*label24)
2325 where label24 is the concatenation of label6 and label18. */
2326
2327 /* Grab the instruction. */
2328 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2329
2330 value -= input_section->output_section->vma + input_section->output_offset;
2331 value -= rello->r_offset;
2332 value += rello->r_addend;
2333
2334 value = value >> 2;
2335
2336 label6 = value & 0xfc0000;
2337 label6 = label6 << 7;
2338
2339 label18 = value & 0x3ffff;
2340
2341 insn = insn & 0x803c0000;
2342 insn = insn | label6;
2343 insn = insn | label18;
2344
2345 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2346
2347 return bfd_reloc_ok;
2348 }
2349
2350 static bfd_reloc_status_type
2351 elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation,
2352 contents, value)
2353 struct bfd_link_info *info;
2354 bfd *input_bfd;
2355 asection *input_section;
2356 Elf_Internal_Rela *relocation;
2357 bfd_byte *contents;
2358 bfd_vma value;
2359 {
2360 bfd_vma insn;
2361 bfd_vma gp;
2362 struct bfd_link_hash_entry *h;
2363
2364 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2365
2366 gp = (h->u.def.value
2367 + h->u.def.section->output_section->vma
2368 + h->u.def.section->output_offset);
2369
2370 value -= input_section->output_section->vma;
2371 value -= (gp - input_section->output_section->vma);
2372 value += relocation->r_addend;
2373 value = ((value >> 16) & 0xffff);
2374
2375 if ((long) value > 0xffff || (long) value < -0x10000)
2376 return bfd_reloc_overflow;
2377
2378 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2379 insn = (insn & 0xffff0000) | value;
2380
2381 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2382 return bfd_reloc_ok;
2383 }
2384
2385 static bfd_reloc_status_type
2386 elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation,
2387 contents, value)
2388 struct bfd_link_info *info;
2389 bfd *input_bfd;
2390 asection *input_section;
2391 Elf_Internal_Rela *relocation;
2392 bfd_byte *contents;
2393 bfd_vma value;
2394 {
2395 bfd_vma insn;
2396 bfd_vma gp;
2397 struct bfd_link_hash_entry *h;
2398
2399 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2400
2401 gp = (h->u.def.value
2402 + h->u.def.section->output_section->vma
2403 + h->u.def.section->output_offset);
2404
2405 value -= input_section->output_section->vma;
2406 value -= (gp - input_section->output_section->vma);
2407 value += relocation->r_addend;
2408 value = value & 0xffff;
2409
2410 if ((long) value > 0xffff || (long) value < -0x10000)
2411 return bfd_reloc_overflow;
2412
2413 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2414 insn = (insn & 0xffff0000) | value;
2415
2416 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2417
2418 return bfd_reloc_ok;
2419 }
2420
2421 static reloc_howto_type *
2422 frv_reloc_type_lookup (abfd, code)
2423 bfd *abfd ATTRIBUTE_UNUSED;
2424 bfd_reloc_code_real_type code;
2425 {
2426 switch (code)
2427 {
2428 default:
2429 break;
2430
2431 case BFD_RELOC_NONE:
2432 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2433
2434 case BFD_RELOC_32:
2435 if (elf_elfheader (abfd)->e_type == ET_EXEC
2436 || elf_elfheader (abfd)->e_type == ET_DYN)
2437 return &elf32_frv_rel_32_howto;
2438 /* Fall through. */
2439 case BFD_RELOC_CTOR:
2440 return &elf32_frv_howto_table[ (int) R_FRV_32];
2441
2442 case BFD_RELOC_FRV_LABEL16:
2443 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2444
2445 case BFD_RELOC_FRV_LABEL24:
2446 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2447
2448 case BFD_RELOC_FRV_LO16:
2449 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2450
2451 case BFD_RELOC_FRV_HI16:
2452 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2453
2454 case BFD_RELOC_FRV_GPREL12:
2455 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2456
2457 case BFD_RELOC_FRV_GPRELU12:
2458 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2459
2460 case BFD_RELOC_FRV_GPREL32:
2461 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2462
2463 case BFD_RELOC_FRV_GPRELHI:
2464 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2465
2466 case BFD_RELOC_FRV_GPRELLO:
2467 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2468
2469 case BFD_RELOC_FRV_GOT12:
2470 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2471
2472 case BFD_RELOC_FRV_GOTHI:
2473 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2474
2475 case BFD_RELOC_FRV_GOTLO:
2476 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2477
2478 case BFD_RELOC_FRV_FUNCDESC:
2479 if (elf_elfheader (abfd)->e_type == ET_EXEC
2480 || elf_elfheader (abfd)->e_type == ET_DYN)
2481 return &elf32_frv_rel_funcdesc_howto;
2482 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2483
2484 case BFD_RELOC_FRV_FUNCDESC_GOT12:
2485 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2486
2487 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2488 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2489
2490 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2491 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2492
2493 case BFD_RELOC_FRV_FUNCDESC_VALUE:
2494 if (elf_elfheader (abfd)->e_type == ET_EXEC
2495 || elf_elfheader (abfd)->e_type == ET_DYN)
2496 return &elf32_frv_rel_funcdesc_value_howto;
2497 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2498
2499 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2500 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2501
2502 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2503 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2504
2505 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2506 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2507
2508 case BFD_RELOC_FRV_GOTOFF12:
2509 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2510
2511 case BFD_RELOC_FRV_GOTOFFHI:
2512 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2513
2514 case BFD_RELOC_FRV_GOTOFFLO:
2515 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2516
2517 case BFD_RELOC_FRV_GETTLSOFF:
2518 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2519
2520 case BFD_RELOC_FRV_TLSDESC_VALUE:
2521 if (elf_elfheader (abfd)->e_type == ET_EXEC
2522 || elf_elfheader (abfd)->e_type == ET_DYN)
2523 return &elf32_frv_rel_tlsdesc_value_howto;
2524 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2525
2526 case BFD_RELOC_FRV_GOTTLSDESC12:
2527 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2528
2529 case BFD_RELOC_FRV_GOTTLSDESCHI:
2530 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2531
2532 case BFD_RELOC_FRV_GOTTLSDESCLO:
2533 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2534
2535 case BFD_RELOC_FRV_TLSMOFF12:
2536 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2537
2538 case BFD_RELOC_FRV_TLSMOFFHI:
2539 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2540
2541 case BFD_RELOC_FRV_TLSMOFFLO:
2542 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2543
2544 case BFD_RELOC_FRV_GOTTLSOFF12:
2545 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2546
2547 case BFD_RELOC_FRV_GOTTLSOFFHI:
2548 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2549
2550 case BFD_RELOC_FRV_GOTTLSOFFLO:
2551 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2552
2553 case BFD_RELOC_FRV_TLSOFF:
2554 if (elf_elfheader (abfd)->e_type == ET_EXEC
2555 || elf_elfheader (abfd)->e_type == ET_DYN)
2556 return &elf32_frv_rel_tlsoff_howto;
2557 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2558
2559 case BFD_RELOC_FRV_TLSDESC_RELAX:
2560 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2561
2562 case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2563 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2564
2565 case BFD_RELOC_FRV_TLSOFF_RELAX:
2566 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2567
2568 case BFD_RELOC_FRV_TLSMOFF:
2569 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2570
2571 case BFD_RELOC_VTABLE_INHERIT:
2572 return &elf32_frv_vtinherit_howto;
2573
2574 case BFD_RELOC_VTABLE_ENTRY:
2575 return &elf32_frv_vtentry_howto;
2576 }
2577
2578 return NULL;
2579 }
2580
2581 static reloc_howto_type *
2582 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2583 {
2584 unsigned int i;
2585
2586 for (i = 0;
2587 i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2588 i++)
2589 if (elf32_frv_howto_table[i].name != NULL
2590 && strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2591 return &elf32_frv_howto_table[i];
2592
2593 if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2594 return &elf32_frv_vtinherit_howto;
2595 if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2596 return &elf32_frv_vtentry_howto;
2597
2598 return NULL;
2599 }
2600
2601 /* Set the howto pointer for an FRV ELF reloc. */
2602
2603 static void
2604 frv_info_to_howto_rela (abfd, cache_ptr, dst)
2605 bfd *abfd ATTRIBUTE_UNUSED;
2606 arelent *cache_ptr;
2607 Elf_Internal_Rela *dst;
2608 {
2609 unsigned int r_type;
2610
2611 r_type = ELF32_R_TYPE (dst->r_info);
2612 switch (r_type)
2613 {
2614 case R_FRV_GNU_VTINHERIT:
2615 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2616 break;
2617
2618 case R_FRV_GNU_VTENTRY:
2619 cache_ptr->howto = &elf32_frv_vtentry_howto;
2620 break;
2621
2622 default:
2623 cache_ptr->howto = & elf32_frv_howto_table [r_type];
2624 break;
2625 }
2626 }
2627
2628 /* Set the howto pointer for an FRV ELF REL reloc. */
2629 static void
2630 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2631 arelent *cache_ptr, Elf_Internal_Rela *dst)
2632 {
2633 unsigned int r_type;
2634
2635 r_type = ELF32_R_TYPE (dst->r_info);
2636 switch (r_type)
2637 {
2638 case R_FRV_32:
2639 cache_ptr->howto = &elf32_frv_rel_32_howto;
2640 break;
2641
2642 case R_FRV_FUNCDESC:
2643 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2644 break;
2645
2646 case R_FRV_FUNCDESC_VALUE:
2647 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2648 break;
2649
2650 case R_FRV_TLSDESC_VALUE:
2651 cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2652 break;
2653
2654 case R_FRV_TLSOFF:
2655 cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2656 break;
2657
2658 default:
2659 cache_ptr->howto = NULL;
2660 break;
2661 }
2662 }
2663 \f
2664 /* Perform a single relocation. By default we use the standard BFD
2665 routines, but a few relocs, we have to do them ourselves. */
2666
2667 static bfd_reloc_status_type
2668 frv_final_link_relocate (howto, input_bfd, input_section, contents, rel,
2669 relocation)
2670 reloc_howto_type *howto;
2671 bfd *input_bfd;
2672 asection *input_section;
2673 bfd_byte *contents;
2674 Elf_Internal_Rela *rel;
2675 bfd_vma relocation;
2676 {
2677 return _bfd_final_link_relocate (howto, input_bfd, input_section,
2678 contents, rel->r_offset, relocation,
2679 rel->r_addend);
2680 }
2681
2682 \f
2683 /* Relocate an FRV ELF section.
2684
2685 The RELOCATE_SECTION function is called by the new ELF backend linker
2686 to handle the relocations for a section.
2687
2688 The relocs are always passed as Rela structures; if the section
2689 actually uses Rel structures, the r_addend field will always be
2690 zero.
2691
2692 This function is responsible for adjusting the section contents as
2693 necessary, and (if using Rela relocs and generating a relocatable
2694 output file) adjusting the reloc addend as necessary.
2695
2696 This function does not have to worry about setting the reloc
2697 address or the reloc symbol index.
2698
2699 LOCAL_SYMS is a pointer to the swapped in local symbols.
2700
2701 LOCAL_SECTIONS is an array giving the section in the input file
2702 corresponding to the st_shndx field of each local symbol.
2703
2704 The global hash table entry for the global symbols can be found
2705 via elf_sym_hashes (input_bfd).
2706
2707 When generating relocatable output, this function must handle
2708 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2709 going to be the section symbol corresponding to the output
2710 section, which means that the addend must be adjusted
2711 accordingly. */
2712
2713 static bfd_boolean
2714 elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
2715 contents, relocs, local_syms, local_sections)
2716 bfd *output_bfd ATTRIBUTE_UNUSED;
2717 struct bfd_link_info *info;
2718 bfd *input_bfd;
2719 asection *input_section;
2720 bfd_byte *contents;
2721 Elf_Internal_Rela *relocs;
2722 Elf_Internal_Sym *local_syms;
2723 asection **local_sections;
2724 {
2725 Elf_Internal_Shdr *symtab_hdr;
2726 struct elf_link_hash_entry **sym_hashes;
2727 Elf_Internal_Rela *rel;
2728 Elf_Internal_Rela *relend;
2729 unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2730 check_segment[2];
2731 int silence_segment_error = !(info->shared || info->pie);
2732 unsigned long insn;
2733
2734 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2735 sym_hashes = elf_sym_hashes (input_bfd);
2736 relend = relocs + input_section->reloc_count;
2737
2738 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2739 input_section->output_section);
2740 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2741 got_segment = _frvfdpic_osec_to_segment (output_bfd,
2742 frvfdpic_got_section (info)
2743 ->output_section);
2744 else
2745 got_segment = -1;
2746 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2747 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2748 frvfdpic_gotfixup_section (info)
2749 ->output_section);
2750 else
2751 gprel_segment = -1;
2752 if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2753 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2754 frvfdpic_plt_section (info)
2755 ->output_section);
2756 else
2757 plt_segment = -1;
2758 if (elf_hash_table (info)->tls_sec)
2759 tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2760 elf_hash_table (info)->tls_sec);
2761 else
2762 tls_segment = -1;
2763
2764 for (rel = relocs; rel < relend; rel ++)
2765 {
2766 reloc_howto_type *howto;
2767 unsigned long r_symndx;
2768 Elf_Internal_Sym *sym;
2769 asection *sec;
2770 struct elf_link_hash_entry *h;
2771 bfd_vma relocation;
2772 bfd_reloc_status_type r;
2773 const char *name;
2774 int r_type;
2775 asection *osec;
2776 struct frvfdpic_relocs_info *picrel;
2777 bfd_vma orig_addend = rel->r_addend;
2778
2779 r_type = ELF32_R_TYPE (rel->r_info);
2780
2781 if ( r_type == R_FRV_GNU_VTINHERIT
2782 || r_type == R_FRV_GNU_VTENTRY)
2783 continue;
2784
2785 r_symndx = ELF32_R_SYM (rel->r_info);
2786 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2787 h = NULL;
2788 sym = NULL;
2789 sec = NULL;
2790
2791 if (r_symndx < symtab_hdr->sh_info)
2792 {
2793 sym = local_syms + r_symndx;
2794 osec = sec = local_sections [r_symndx];
2795 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2796
2797 name = bfd_elf_string_from_elf_section
2798 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2799 if (name == NULL || name[0] == 0)
2800 name = bfd_section_name (input_bfd, sec);
2801 }
2802 else
2803 {
2804 bfd_boolean warned;
2805 bfd_boolean unresolved_reloc;
2806
2807 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2808 r_symndx, symtab_hdr, sym_hashes,
2809 h, sec, relocation,
2810 unresolved_reloc, warned);
2811 osec = sec;
2812 name = h->root.root.string;
2813 }
2814
2815 if (sec != NULL && elf_discarded_section (sec))
2816 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2817 rel, relend, howto, contents);
2818
2819 if (info->relocatable)
2820 continue;
2821
2822 if (r_type != R_FRV_TLSMOFF
2823 && h != NULL
2824 && (h->root.type == bfd_link_hash_defined
2825 || h->root.type == bfd_link_hash_defweak)
2826 && !FRVFDPIC_SYM_LOCAL (info, h))
2827 {
2828 osec = sec = NULL;
2829 relocation = 0;
2830 }
2831
2832 switch (r_type)
2833 {
2834 case R_FRV_LABEL24:
2835 case R_FRV_32:
2836 if (! IS_FDPIC (output_bfd))
2837 goto non_fdpic;
2838
2839 case R_FRV_GOT12:
2840 case R_FRV_GOTHI:
2841 case R_FRV_GOTLO:
2842 case R_FRV_FUNCDESC_GOT12:
2843 case R_FRV_FUNCDESC_GOTHI:
2844 case R_FRV_FUNCDESC_GOTLO:
2845 case R_FRV_GOTOFF12:
2846 case R_FRV_GOTOFFHI:
2847 case R_FRV_GOTOFFLO:
2848 case R_FRV_FUNCDESC_GOTOFF12:
2849 case R_FRV_FUNCDESC_GOTOFFHI:
2850 case R_FRV_FUNCDESC_GOTOFFLO:
2851 case R_FRV_FUNCDESC:
2852 case R_FRV_FUNCDESC_VALUE:
2853 case R_FRV_GETTLSOFF:
2854 case R_FRV_TLSDESC_VALUE:
2855 case R_FRV_GOTTLSDESC12:
2856 case R_FRV_GOTTLSDESCHI:
2857 case R_FRV_GOTTLSDESCLO:
2858 case R_FRV_TLSMOFF12:
2859 case R_FRV_TLSMOFFHI:
2860 case R_FRV_TLSMOFFLO:
2861 case R_FRV_GOTTLSOFF12:
2862 case R_FRV_GOTTLSOFFHI:
2863 case R_FRV_GOTTLSOFFLO:
2864 case R_FRV_TLSOFF:
2865 case R_FRV_TLSDESC_RELAX:
2866 case R_FRV_GETTLSOFF_RELAX:
2867 case R_FRV_TLSOFF_RELAX:
2868 case R_FRV_TLSMOFF:
2869 if (h != NULL)
2870 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2871 (info), input_bfd, h,
2872 orig_addend, INSERT);
2873 else
2874 /* In order to find the entry we created before, we must
2875 use the original addend, not the one that may have been
2876 modified by _bfd_elf_rela_local_sym(). */
2877 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2878 (info), input_bfd, r_symndx,
2879 orig_addend, INSERT);
2880 if (! picrel)
2881 return FALSE;
2882
2883 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2884 osec, sym,
2885 rel->r_addend))
2886 {
2887 (*_bfd_error_handler)
2888 (_("%B(%A+0x%x): relocation to `%s+%x' may have caused the error above"),
2889 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2890 return FALSE;
2891 }
2892
2893 break;
2894
2895 default:
2896 non_fdpic:
2897 picrel = NULL;
2898 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
2899 {
2900 info->callbacks->warning
2901 (info, _("relocation references symbol not defined in the module"),
2902 name, input_bfd, input_section, rel->r_offset);
2903 return FALSE;
2904 }
2905 break;
2906 }
2907
2908 switch (r_type)
2909 {
2910 case R_FRV_GETTLSOFF:
2911 case R_FRV_TLSDESC_VALUE:
2912 case R_FRV_GOTTLSDESC12:
2913 case R_FRV_GOTTLSDESCHI:
2914 case R_FRV_GOTTLSDESCLO:
2915 case R_FRV_TLSMOFF12:
2916 case R_FRV_TLSMOFFHI:
2917 case R_FRV_TLSMOFFLO:
2918 case R_FRV_GOTTLSOFF12:
2919 case R_FRV_GOTTLSOFFHI:
2920 case R_FRV_GOTTLSOFFLO:
2921 case R_FRV_TLSOFF:
2922 case R_FRV_TLSDESC_RELAX:
2923 case R_FRV_GETTLSOFF_RELAX:
2924 case R_FRV_TLSOFF_RELAX:
2925 case R_FRV_TLSMOFF:
2926 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2927 relocation += tls_biased_base (info);
2928 break;
2929
2930 default:
2931 break;
2932 }
2933
2934 /* Try to apply TLS relaxations. */
2935 if (1)
2936 switch (r_type)
2937 {
2938
2939 #define LOCAL_EXEC_P(info, picrel) \
2940 ((info)->executable \
2941 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2942 #define INITIAL_EXEC_P(info, picrel) \
2943 (((info)->executable || (info)->flags & DF_STATIC_TLS) \
2944 && (picrel)->tlsoff_entry)
2945
2946 #define IN_RANGE_FOR_OFST12_P(value) \
2947 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2948 #define IN_RANGE_FOR_SETLOS_P(value) \
2949 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2950 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2951 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2952
2953 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2954 (LOCAL_EXEC_P ((info), (picrel)) \
2955 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2956 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2957 (INITIAL_EXEC_P ((info), (picrel)) \
2958 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2959
2960 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2961 (LOCAL_EXEC_P ((info), (picrel)))
2962 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2963 (INITIAL_EXEC_P ((info), (picrel)))
2964
2965 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2966 (LOCAL_EXEC_P ((info), (picrel)) \
2967 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2968
2969 case R_FRV_GETTLSOFF:
2970 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2971
2972 /* Is this a call instruction? */
2973 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2974 {
2975 r = info->callbacks->warning
2976 (info,
2977 _("R_FRV_GETTLSOFF not applied to a call instruction"),
2978 name, input_bfd, input_section, rel->r_offset);
2979 return FALSE;
2980 }
2981
2982 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2983 relocation + rel->r_addend))
2984 {
2985 /* Replace the call instruction (except the packing bit)
2986 with setlos #tlsmofflo(symbol+offset), gr9. */
2987 insn &= (unsigned long)0x80000000;
2988 insn |= (unsigned long)0x12fc0000;
2989 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2990
2991 r_type = R_FRV_TLSMOFFLO;
2992 howto = elf32_frv_howto_table + r_type;
2993 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2994 }
2995
2996 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
2997 {
2998 /* Replace the call instruction (except the packing bit)
2999 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
3000 insn &= (unsigned long)0x80000000;
3001 insn |= (unsigned long)0x12c8f000;
3002 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3003
3004 r_type = R_FRV_GOTTLSOFF12;
3005 howto = elf32_frv_howto_table + r_type;
3006 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3007 }
3008
3009 break;
3010
3011 case R_FRV_GOTTLSDESC12:
3012 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3013
3014 /* Is this an lddi instruction? */
3015 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
3016 {
3017 r = info->callbacks->warning
3018 (info,
3019 _("R_FRV_GOTTLSDESC12 not applied to an lddi instruction"),
3020 name, input_bfd, input_section, rel->r_offset);
3021 return FALSE;
3022 }
3023
3024 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3025 relocation + rel->r_addend)
3026 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3027 info))
3028 {
3029 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3030 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3031 Preserve the packing bit. */
3032 insn = (insn & (unsigned long)0x80000000)
3033 | ((insn + (unsigned long)0x02000000)
3034 & (unsigned long)0x7e000000);
3035 insn |= (unsigned long)0x00fc0000;
3036 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3037
3038 r_type = R_FRV_TLSMOFFLO;
3039 howto = elf32_frv_howto_table + r_type;
3040 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3041 }
3042
3043 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3044 relocation + rel->r_addend))
3045 {
3046 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3047 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3048 Preserve the packing bit. */
3049 insn = (insn & (unsigned long)0x80000000)
3050 | ((insn + (unsigned long)0x02000000)
3051 & (unsigned long)0x7e000000);
3052 insn |= (unsigned long)0x00f80000;
3053 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3054
3055 r_type = R_FRV_TLSMOFFHI;
3056 howto = elf32_frv_howto_table + r_type;
3057 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3058 }
3059
3060 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3061 {
3062 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3063 with ldi @(grB, #gottlsoff12(symbol+offset),
3064 gr<C+1>. Preserve the packing bit. If gottlsoff12
3065 overflows, we'll error out, but that's sort-of ok,
3066 since we'd started with gottlsdesc12, that's actually
3067 more demanding. Compiling with -fPIE instead of
3068 -fpie would fix it; linking with --relax should fix
3069 it as well. */
3070 insn = (insn & (unsigned long)0x80cbf000)
3071 | ((insn + (unsigned long)0x02000000)
3072 & (unsigned long)0x7e000000);
3073 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3074
3075 r_type = R_FRV_GOTTLSOFF12;
3076 howto = elf32_frv_howto_table + r_type;
3077 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3078 }
3079
3080 break;
3081
3082 case R_FRV_GOTTLSDESCHI:
3083 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3084
3085 /* Is this a sethi instruction? */
3086 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3087 {
3088 r = info->callbacks->warning
3089 (info,
3090 _("R_FRV_GOTTLSDESCHI not applied to a sethi instruction"),
3091 name, input_bfd, input_section, rel->r_offset);
3092 return FALSE;
3093 }
3094
3095 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3096 relocation + rel->r_addend)
3097 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3098 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3099 {
3100 /* Replace sethi with a nop. Preserve the packing bit. */
3101 insn &= (unsigned long)0x80000000;
3102 insn |= (unsigned long)0x00880000;
3103 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3104
3105 /* Nothing to relocate. */
3106 continue;
3107 }
3108
3109 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3110 {
3111 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3112 r_type = R_FRV_GOTTLSOFFHI;
3113 howto = elf32_frv_howto_table + r_type;
3114 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3115 }
3116
3117 break;
3118
3119 case R_FRV_GOTTLSDESCLO:
3120 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3121
3122 /* Is this a setlo or setlos instruction? */
3123 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3124 {
3125 r = info->callbacks->warning
3126 (info,
3127 _("R_FRV_GOTTLSDESCLO"
3128 " not applied to a setlo or setlos instruction"),
3129 name, input_bfd, input_section, rel->r_offset);
3130 return FALSE;
3131 }
3132
3133 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3134 relocation + rel->r_addend)
3135 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3136 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3137 {
3138 /* Replace setlo/setlos with a nop. Preserve the
3139 packing bit. */
3140 insn &= (unsigned long)0x80000000;
3141 insn |= (unsigned long)0x00880000;
3142 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3143
3144 /* Nothing to relocate. */
3145 continue;
3146 }
3147
3148 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3149 {
3150 /* If the corresponding sethi (if it exists) decayed
3151 to a nop, make sure this becomes (or already is) a
3152 setlos, not setlo. */
3153 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3154 {
3155 insn |= (unsigned long)0x00080000;
3156 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3157 }
3158
3159 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3160 r_type = R_FRV_GOTTLSOFFLO;
3161 howto = elf32_frv_howto_table + r_type;
3162 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3163 }
3164
3165 break;
3166
3167 case R_FRV_TLSDESC_RELAX:
3168 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3169
3170 /* Is this an ldd instruction? */
3171 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3172 {
3173 r = info->callbacks->warning
3174 (info,
3175 _("R_FRV_TLSDESC_RELAX not applied to an ldd instruction"),
3176 name, input_bfd, input_section, rel->r_offset);
3177 return FALSE;
3178 }
3179
3180 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3181 relocation + rel->r_addend)
3182 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3183 info))
3184 {
3185 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3186 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3187 Preserve the packing bit. */
3188 insn = (insn & (unsigned long)0x80000000)
3189 | ((insn + (unsigned long)0x02000000)
3190 & (unsigned long)0x7e000000);
3191 insn |= (unsigned long)0x00fc0000;
3192 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3193
3194 r_type = R_FRV_TLSMOFFLO;
3195 howto = elf32_frv_howto_table + r_type;
3196 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3197 }
3198
3199 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3200 relocation + rel->r_addend))
3201 {
3202 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3203 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3204 Preserve the packing bit. */
3205 insn = (insn & (unsigned long)0x80000000)
3206 | ((insn + (unsigned long)0x02000000)
3207 & (unsigned long)0x7e000000);
3208 insn |= (unsigned long)0x00f80000;
3209 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3210
3211 r_type = R_FRV_TLSMOFFHI;
3212 howto = elf32_frv_howto_table + r_type;
3213 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3214 }
3215
3216 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3217 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3218 {
3219 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3220 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3221 Preserve the packing bit. */
3222 insn = (insn & (unsigned long)0x8003f000)
3223 | (unsigned long)0x00c80000
3224 | ((insn + (unsigned long)0x02000000)
3225 & (unsigned long)0x7e000000);
3226 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3227
3228 r_type = R_FRV_GOTTLSOFF12;
3229 howto = elf32_frv_howto_table + r_type;
3230 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3231 }
3232
3233 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3234 {
3235 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3236 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3237 Preserve the packing bit. */
3238 insn = (insn & (unsigned long)0x81ffffbf)
3239 | ((insn + (unsigned long)0x02000000)
3240 & (unsigned long)0x7e000000);
3241 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3242
3243 /* #tlsoff(symbol+offset) is just a relaxation
3244 annotation, so there's nothing left to
3245 relocate. */
3246 continue;
3247 }
3248
3249 break;
3250
3251 case R_FRV_GETTLSOFF_RELAX:
3252 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3253
3254 /* Is this a calll or callil instruction? */
3255 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3256 {
3257 r = info->callbacks->warning
3258 (info,
3259 _("R_FRV_GETTLSOFF_RELAX"
3260 " not applied to a calll instruction"),
3261 name, input_bfd, input_section, rel->r_offset);
3262 return FALSE;
3263 }
3264
3265 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3266 relocation + rel->r_addend)
3267 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3268 info))
3269 {
3270 /* Replace calll with a nop. Preserve the packing bit. */
3271 insn &= (unsigned long)0x80000000;
3272 insn |= (unsigned long)0x00880000;
3273 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3274
3275 /* Nothing to relocate. */
3276 continue;
3277 }
3278
3279 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3280 relocation + rel->r_addend))
3281 {
3282 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3283 Preserve the packing bit. */
3284 insn &= (unsigned long)0x80000000;
3285 insn |= (unsigned long)0x12f40000;
3286 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3287
3288 r_type = R_FRV_TLSMOFFLO;
3289 howto = elf32_frv_howto_table + r_type;
3290 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3291 }
3292
3293 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3294 {
3295 /* Replace calll with a nop. Preserve the packing bit. */
3296 insn &= (unsigned long)0x80000000;
3297 insn |= (unsigned long)0x00880000;
3298 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3299
3300 /* Nothing to relocate. */
3301 continue;
3302 }
3303
3304 break;
3305
3306 case R_FRV_GOTTLSOFF12:
3307 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3308
3309 /* Is this an ldi instruction? */
3310 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3311 {
3312 r = info->callbacks->warning
3313 (info,
3314 _("R_FRV_GOTTLSOFF12 not applied to an ldi instruction"),
3315 name, input_bfd, input_section, rel->r_offset);
3316 return FALSE;
3317 }
3318
3319 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3320 relocation + rel->r_addend))
3321 {
3322 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3323 with setlos #tlsmofflo(symbol+offset), grC.
3324 Preserve the packing bit. */
3325 insn &= (unsigned long)0xfe000000;
3326 insn |= (unsigned long)0x00fc0000;
3327 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3328
3329 r_type = R_FRV_TLSMOFFLO;
3330 howto = elf32_frv_howto_table + r_type;
3331 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3332 }
3333
3334 break;
3335
3336 case R_FRV_GOTTLSOFFHI:
3337 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3338
3339 /* Is this a sethi instruction? */
3340 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3341 {
3342 r = info->callbacks->warning
3343 (info,
3344 _("R_FRV_GOTTLSOFFHI not applied to a sethi instruction"),
3345 name, input_bfd, input_section, rel->r_offset);
3346 return FALSE;
3347 }
3348
3349 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3350 relocation + rel->r_addend)
3351 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3352 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3353 {
3354 /* Replace sethi with a nop. Preserve the packing bit. */
3355 insn &= (unsigned long)0x80000000;
3356 insn |= (unsigned long)0x00880000;
3357 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3358
3359 /* Nothing to relocate. */
3360 continue;
3361 }
3362
3363 break;
3364
3365 case R_FRV_GOTTLSOFFLO:
3366 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3367
3368 /* Is this a setlo or setlos instruction? */
3369 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3370 {
3371 r = info->callbacks->warning
3372 (info,
3373 _("R_FRV_GOTTLSOFFLO"
3374 " not applied to a setlo or setlos instruction"),
3375 name, input_bfd, input_section, rel->r_offset);
3376 return FALSE;
3377 }
3378
3379 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3380 relocation + rel->r_addend)
3381 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3382 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3383 {
3384 /* Replace setlo/setlos with a nop. Preserve the
3385 packing bit. */
3386 insn &= (unsigned long)0x80000000;
3387 insn |= (unsigned long)0x00880000;
3388 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3389
3390 /* Nothing to relocate. */
3391 continue;
3392 }
3393
3394 break;
3395
3396 case R_FRV_TLSOFF_RELAX:
3397 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3398
3399 /* Is this an ld instruction? */
3400 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3401 {
3402 r = info->callbacks->warning
3403 (info,
3404 _("R_FRV_TLSOFF_RELAX not applied to an ld instruction"),
3405 name, input_bfd, input_section, rel->r_offset);
3406 return FALSE;
3407 }
3408
3409 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3410 relocation + rel->r_addend))
3411 {
3412 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3413 with setlos #tlsmofflo(symbol+offset), grC.
3414 Preserve the packing bit. */
3415 insn &= (unsigned long)0xfe000000;
3416 insn |= (unsigned long)0x00fc0000;
3417 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3418
3419 r_type = R_FRV_TLSMOFFLO;
3420 howto = elf32_frv_howto_table + r_type;
3421 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3422 }
3423
3424 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3425 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3426 {
3427 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3428 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3429 Preserve the packing bit. */
3430 insn = (insn & (unsigned long)0xfe03f000)
3431 | (unsigned long)0x00c80000;;
3432 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3433
3434 r_type = R_FRV_GOTTLSOFF12;
3435 howto = elf32_frv_howto_table + r_type;
3436 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3437 }
3438
3439 break;
3440
3441 case R_FRV_TLSMOFFHI:
3442 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3443
3444 /* Is this a sethi instruction? */
3445 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3446 {
3447 r = info->callbacks->warning
3448 (info,
3449 _("R_FRV_TLSMOFFHI not applied to a sethi instruction"),
3450 name, input_bfd, input_section, rel->r_offset);
3451 return FALSE;
3452 }
3453
3454 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3455 info))
3456 {
3457 /* Replace sethi with a nop. Preserve the packing bit. */
3458 insn &= (unsigned long)0x80000000;
3459 insn |= (unsigned long)0x00880000;
3460 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3461
3462 /* Nothing to relocate. */
3463 continue;
3464 }
3465
3466 break;
3467
3468 case R_FRV_TLSMOFFLO:
3469 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3470
3471 /* Is this a setlo or setlos instruction? */
3472 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3473 {
3474 r = info->callbacks->warning
3475 (info,
3476 _("R_FRV_TLSMOFFLO"
3477 " not applied to a setlo or setlos instruction"),
3478 name, input_bfd, input_section, rel->r_offset);
3479 return FALSE;
3480 }
3481
3482 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3483 info))
3484 /* If the corresponding sethi (if it exists) decayed
3485 to a nop, make sure this becomes (or already is) a
3486 setlos, not setlo. */
3487 {
3488 insn |= (unsigned long)0x00080000;
3489 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3490 }
3491
3492 break;
3493
3494 /*
3495 There's nothing to relax in these:
3496 R_FRV_TLSDESC_VALUE
3497 R_FRV_TLSOFF
3498 R_FRV_TLSMOFF12
3499 R_FRV_TLSMOFFHI
3500 R_FRV_TLSMOFFLO
3501 R_FRV_TLSMOFF
3502 */
3503
3504 default:
3505 break;
3506 }
3507
3508 switch (r_type)
3509 {
3510 case R_FRV_LABEL24:
3511 check_segment[0] = isec_segment;
3512 if (! IS_FDPIC (output_bfd))
3513 check_segment[1] = isec_segment;
3514 else if (picrel->plt)
3515 {
3516 relocation = frvfdpic_plt_section (info)->output_section->vma
3517 + frvfdpic_plt_section (info)->output_offset
3518 + picrel->plt_entry;
3519 check_segment[1] = plt_segment;
3520 }
3521 /* We don't want to warn on calls to undefined weak symbols,
3522 as calls to them must be protected by non-NULL tests
3523 anyway, and unprotected calls would invoke undefined
3524 behavior. */
3525 else if (picrel->symndx == -1
3526 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3527 check_segment[1] = check_segment[0];
3528 else
3529 check_segment[1] = sec
3530 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3531 : (unsigned)-1;
3532 break;
3533
3534 case R_FRV_GOT12:
3535 case R_FRV_GOTHI:
3536 case R_FRV_GOTLO:
3537 relocation = picrel->got_entry;
3538 check_segment[0] = check_segment[1] = got_segment;
3539 break;
3540
3541 case R_FRV_FUNCDESC_GOT12:
3542 case R_FRV_FUNCDESC_GOTHI:
3543 case R_FRV_FUNCDESC_GOTLO:
3544 relocation = picrel->fdgot_entry;
3545 check_segment[0] = check_segment[1] = got_segment;
3546 break;
3547
3548 case R_FRV_GOTOFFHI:
3549 case R_FRV_GOTOFF12:
3550 case R_FRV_GOTOFFLO:
3551 relocation -= frvfdpic_got_section (info)->output_section->vma
3552 + frvfdpic_got_section (info)->output_offset
3553 + frvfdpic_got_initial_offset (info);
3554 check_segment[0] = got_segment;
3555 check_segment[1] = sec
3556 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3557 : (unsigned)-1;
3558 break;
3559
3560 case R_FRV_FUNCDESC_GOTOFF12:
3561 case R_FRV_FUNCDESC_GOTOFFHI:
3562 case R_FRV_FUNCDESC_GOTOFFLO:
3563 relocation = picrel->fd_entry;
3564 check_segment[0] = check_segment[1] = got_segment;
3565 break;
3566
3567 case R_FRV_FUNCDESC:
3568 {
3569 int dynindx;
3570 bfd_vma addend = rel->r_addend;
3571
3572 if (! (h && h->root.type == bfd_link_hash_undefweak
3573 && FRVFDPIC_SYM_LOCAL (info, h)))
3574 {
3575 /* If the symbol is dynamic and there may be dynamic
3576 symbol resolution because we are or are linked with a
3577 shared library, emit a FUNCDESC relocation such that
3578 the dynamic linker will allocate the function
3579 descriptor. If the symbol needs a non-local function
3580 descriptor but binds locally (e.g., its visibility is
3581 protected, emit a dynamic relocation decayed to
3582 section+offset. */
3583 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3584 && FRVFDPIC_SYM_LOCAL (info, h)
3585 && !(info->executable && !info->pie))
3586 {
3587 dynindx = elf_section_data (h->root.u.def.section
3588 ->output_section)->dynindx;
3589 addend += h->root.u.def.section->output_offset
3590 + h->root.u.def.value;
3591 }
3592 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3593 {
3594 if (addend)
3595 {
3596 info->callbacks->warning
3597 (info, _("R_FRV_FUNCDESC references dynamic symbol with nonzero addend"),
3598 name, input_bfd, input_section, rel->r_offset);
3599 return FALSE;
3600 }
3601 dynindx = h->dynindx;
3602 }
3603 else
3604 {
3605 /* Otherwise, we know we have a private function
3606 descriptor, so reference it directly. */
3607 BFD_ASSERT (picrel->privfd);
3608 r_type = R_FRV_32;
3609 dynindx = elf_section_data (frvfdpic_got_section (info)
3610 ->output_section)->dynindx;
3611 addend = frvfdpic_got_section (info)->output_offset
3612 + frvfdpic_got_initial_offset (info)
3613 + picrel->fd_entry;
3614 }
3615
3616 /* If there is room for dynamic symbol resolution, emit
3617 the dynamic relocation. However, if we're linking an
3618 executable at a fixed location, we won't have emitted a
3619 dynamic symbol entry for the got section, so idx will
3620 be zero, which means we can and should compute the
3621 address of the private descriptor ourselves. */
3622 if (info->executable && !info->pie
3623 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3624 {
3625 addend += frvfdpic_got_section (info)->output_section->vma;
3626 if ((bfd_get_section_flags (output_bfd,
3627 input_section->output_section)
3628 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3629 {
3630 bfd_vma offset;
3631
3632 if (_frvfdpic_osec_readonly_p (output_bfd,
3633 input_section
3634 ->output_section))
3635 {
3636 info->callbacks->warning
3637 (info,
3638 _("cannot emit fixups in read-only section"),
3639 name, input_bfd, input_section, rel->r_offset);
3640 return FALSE;
3641 }
3642
3643 offset = _bfd_elf_section_offset
3644 (output_bfd, info,
3645 input_section, rel->r_offset);
3646
3647 if (offset != (bfd_vma)-1)
3648 _frvfdpic_add_rofixup (output_bfd,
3649 frvfdpic_gotfixup_section
3650 (info),
3651 offset + input_section
3652 ->output_section->vma
3653 + input_section->output_offset,
3654 picrel);
3655 }
3656 }
3657 else if ((bfd_get_section_flags (output_bfd,
3658 input_section->output_section)
3659 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3660 {
3661 bfd_vma offset;
3662
3663 if (_frvfdpic_osec_readonly_p (output_bfd,
3664 input_section
3665 ->output_section))
3666 {
3667 info->callbacks->warning
3668 (info,
3669 _("cannot emit dynamic relocations in read-only section"),
3670 name, input_bfd, input_section, rel->r_offset);
3671 return FALSE;
3672 }
3673
3674 offset = _bfd_elf_section_offset
3675 (output_bfd, info,
3676 input_section, rel->r_offset);
3677
3678 if (offset != (bfd_vma)-1)
3679 _frvfdpic_add_dyn_reloc (output_bfd,
3680 frvfdpic_gotrel_section (info),
3681 offset + input_section
3682 ->output_section->vma
3683 + input_section->output_offset,
3684 r_type, dynindx, addend, picrel);
3685 }
3686 else
3687 addend += frvfdpic_got_section (info)->output_section->vma;
3688 }
3689
3690 /* We want the addend in-place because dynamic
3691 relocations are REL. Setting relocation to it should
3692 arrange for it to be installed. */
3693 relocation = addend - rel->r_addend;
3694 }
3695 check_segment[0] = check_segment[1] = got_segment;
3696 break;
3697
3698 case R_FRV_32:
3699 if (! IS_FDPIC (output_bfd))
3700 {
3701 check_segment[0] = check_segment[1] = -1;
3702 break;
3703 }
3704 /* Fall through. */
3705 case R_FRV_FUNCDESC_VALUE:
3706 {
3707 int dynindx;
3708 bfd_vma addend = rel->r_addend;
3709
3710 /* If the symbol is dynamic but binds locally, use
3711 section+offset. */
3712 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3713 {
3714 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3715 {
3716 info->callbacks->warning
3717 (info, _("R_FRV_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
3718 name, input_bfd, input_section, rel->r_offset);
3719 return FALSE;
3720 }
3721 dynindx = h->dynindx;
3722 }
3723 else
3724 {
3725 if (h)
3726 addend += h->root.u.def.value;
3727 else
3728 addend += sym->st_value;
3729 if (osec)
3730 addend += osec->output_offset;
3731 if (osec && osec->output_section
3732 && ! bfd_is_abs_section (osec->output_section)
3733 && ! bfd_is_und_section (osec->output_section))
3734 dynindx = elf_section_data (osec->output_section)->dynindx;
3735 else
3736 dynindx = 0;
3737 }
3738
3739 /* If we're linking an executable at a fixed address, we
3740 can omit the dynamic relocation as long as the symbol
3741 is defined in the current link unit (which is implied
3742 by its output section not being NULL). */
3743 if (info->executable && !info->pie
3744 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3745 {
3746 if (osec)
3747 addend += osec->output_section->vma;
3748 if (IS_FDPIC (input_bfd)
3749 && (bfd_get_section_flags (output_bfd,
3750 input_section->output_section)
3751 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3752 {
3753 if (_frvfdpic_osec_readonly_p (output_bfd,
3754 input_section
3755 ->output_section))
3756 {
3757 info->callbacks->warning
3758 (info,
3759 _("cannot emit fixups in read-only section"),
3760 name, input_bfd, input_section, rel->r_offset);
3761 return FALSE;
3762 }
3763 if (!h || h->root.type != bfd_link_hash_undefweak)
3764 {
3765 bfd_vma offset = _bfd_elf_section_offset
3766 (output_bfd, info,
3767 input_section, rel->r_offset);
3768
3769 if (offset != (bfd_vma)-1)
3770 {
3771 _frvfdpic_add_rofixup (output_bfd,
3772 frvfdpic_gotfixup_section
3773 (info),
3774 offset + 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 offset
3783 + input_section->output_section->vma
3784 + input_section->output_offset + 4, picrel);
3785 }
3786 }
3787 }
3788 }
3789 else
3790 {
3791 if ((bfd_get_section_flags (output_bfd,
3792 input_section->output_section)
3793 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3794 {
3795 bfd_vma offset;
3796
3797 if (_frvfdpic_osec_readonly_p (output_bfd,
3798 input_section
3799 ->output_section))
3800 {
3801 info->callbacks->warning
3802 (info,
3803 _("cannot emit dynamic relocations in read-only section"),
3804 name, input_bfd, input_section, rel->r_offset);
3805 return FALSE;
3806 }
3807
3808 offset = _bfd_elf_section_offset
3809 (output_bfd, info,
3810 input_section, rel->r_offset);
3811
3812 if (offset != (bfd_vma)-1)
3813 _frvfdpic_add_dyn_reloc (output_bfd,
3814 frvfdpic_gotrel_section (info),
3815 offset + input_section
3816 ->output_section->vma
3817 + input_section->output_offset,
3818 r_type, dynindx, addend, picrel);
3819 }
3820 else if (osec)
3821 addend += osec->output_section->vma;
3822 /* We want the addend in-place because dynamic
3823 relocations are REL. Setting relocation to it
3824 should arrange for it to be installed. */
3825 relocation = addend - rel->r_addend;
3826 }
3827
3828 if (r_type == R_FRV_FUNCDESC_VALUE)
3829 {
3830 /* If we've omitted the dynamic relocation, just emit
3831 the fixed addresses of the symbol and of the local
3832 GOT base offset. */
3833 if (info->executable && !info->pie
3834 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3835 bfd_put_32 (output_bfd,
3836 frvfdpic_got_section (info)->output_section->vma
3837 + frvfdpic_got_section (info)->output_offset
3838 + frvfdpic_got_initial_offset (info),
3839 contents + rel->r_offset + 4);
3840 else
3841 /* A function descriptor used for lazy or local
3842 resolving is initialized such that its high word
3843 contains the output section index in which the
3844 PLT entries are located, and the low word
3845 contains the offset of the lazy PLT entry entry
3846 point into that section. */
3847 bfd_put_32 (output_bfd,
3848 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3849 ? 0
3850 : _frvfdpic_osec_to_segment (output_bfd,
3851 sec
3852 ->output_section),
3853 contents + rel->r_offset + 4);
3854 }
3855 }
3856 check_segment[0] = check_segment[1] = got_segment;
3857 break;
3858
3859 case R_FRV_GPREL12:
3860 case R_FRV_GPRELU12:
3861 case R_FRV_GPREL32:
3862 case R_FRV_GPRELHI:
3863 case R_FRV_GPRELLO:
3864 check_segment[0] = gprel_segment;
3865 check_segment[1] = sec
3866 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3867 : (unsigned)-1;
3868 break;
3869
3870 case R_FRV_GETTLSOFF:
3871 relocation = frvfdpic_plt_section (info)->output_section->vma
3872 + frvfdpic_plt_section (info)->output_offset
3873 + picrel->tlsplt_entry;
3874 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3875 && picrel->tlsdesc_entry);
3876 check_segment[0] = isec_segment;
3877 check_segment[1] = plt_segment;
3878 break;
3879
3880 case R_FRV_GOTTLSDESC12:
3881 case R_FRV_GOTTLSDESCHI:
3882 case R_FRV_GOTTLSDESCLO:
3883 BFD_ASSERT (picrel->tlsdesc_entry);
3884 relocation = picrel->tlsdesc_entry;
3885 check_segment[0] = tls_segment;
3886 check_segment[1] = sec
3887 && ! bfd_is_abs_section (sec)
3888 && ! bfd_is_und_section (sec)
3889 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3890 : tls_segment;
3891 break;
3892
3893 case R_FRV_TLSMOFF12:
3894 case R_FRV_TLSMOFFHI:
3895 case R_FRV_TLSMOFFLO:
3896 case R_FRV_TLSMOFF:
3897 check_segment[0] = tls_segment;
3898 if (! sec)
3899 check_segment[1] = -1;
3900 else if (bfd_is_abs_section (sec)
3901 || bfd_is_und_section (sec))
3902 {
3903 relocation = 0;
3904 check_segment[1] = tls_segment;
3905 }
3906 else if (sec->output_section)
3907 {
3908 relocation -= tls_biased_base (info);
3909 check_segment[1] =
3910 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3911 }
3912 else
3913 check_segment[1] = -1;
3914 break;
3915
3916 case R_FRV_GOTTLSOFF12:
3917 case R_FRV_GOTTLSOFFHI:
3918 case R_FRV_GOTTLSOFFLO:
3919 BFD_ASSERT (picrel->tlsoff_entry);
3920 relocation = picrel->tlsoff_entry;
3921 check_segment[0] = tls_segment;
3922 check_segment[1] = sec
3923 && ! bfd_is_abs_section (sec)
3924 && ! bfd_is_und_section (sec)
3925 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3926 : tls_segment;
3927 break;
3928
3929 case R_FRV_TLSDESC_VALUE:
3930 case R_FRV_TLSOFF:
3931 /* These shouldn't be present in input object files. */
3932 check_segment[0] = check_segment[1] = isec_segment;
3933 break;
3934
3935 case R_FRV_TLSDESC_RELAX:
3936 case R_FRV_GETTLSOFF_RELAX:
3937 case R_FRV_TLSOFF_RELAX:
3938 /* These are just annotations for relaxation, nothing to do
3939 here. */
3940 continue;
3941
3942 default:
3943 check_segment[0] = isec_segment;
3944 check_segment[1] = sec
3945 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3946 : (unsigned)-1;
3947 break;
3948 }
3949
3950 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3951 {
3952 /* If you take this out, remove the #error from fdpic-static-6.d
3953 in the ld testsuite. */
3954 /* This helps catch problems in GCC while we can't do more
3955 than static linking. The idea is to test whether the
3956 input file basename is crt0.o only once. */
3957 if (silence_segment_error == 1)
3958 silence_segment_error =
3959 (strlen (input_bfd->filename) == 6
3960 && filename_cmp (input_bfd->filename, "crt0.o") == 0)
3961 || (strlen (input_bfd->filename) > 6
3962 && filename_cmp (input_bfd->filename
3963 + strlen (input_bfd->filename) - 7,
3964 "/crt0.o") == 0)
3965 ? -1 : 0;
3966 if (!silence_segment_error
3967 /* We don't want duplicate errors for undefined
3968 symbols. */
3969 && !(picrel && picrel->symndx == -1
3970 && picrel->d.h->root.type == bfd_link_hash_undefined))
3971 {
3972 if (info->shared || info->pie)
3973 (*_bfd_error_handler)
3974 (_("%B(%A+0x%lx): reloc against `%s': %s"),
3975 input_bfd, input_section, (long)rel->r_offset, name,
3976 _("relocation references a different segment"));
3977 else
3978 info->callbacks->warning
3979 (info,
3980 _("relocation references a different segment"),
3981 name, input_bfd, input_section, rel->r_offset);
3982 }
3983 if (!silence_segment_error && (info->shared || info->pie))
3984 return FALSE;
3985 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3986 }
3987
3988 switch (r_type)
3989 {
3990 case R_FRV_GOTOFFHI:
3991 case R_FRV_TLSMOFFHI:
3992 /* We need the addend to be applied before we shift the
3993 value right. */
3994 relocation += rel->r_addend;
3995 /* Fall through. */
3996 case R_FRV_GOTHI:
3997 case R_FRV_FUNCDESC_GOTHI:
3998 case R_FRV_FUNCDESC_GOTOFFHI:
3999 case R_FRV_GOTTLSOFFHI:
4000 case R_FRV_GOTTLSDESCHI:
4001 relocation >>= 16;
4002 /* Fall through. */
4003
4004 case R_FRV_GOTLO:
4005 case R_FRV_FUNCDESC_GOTLO:
4006 case R_FRV_GOTOFFLO:
4007 case R_FRV_FUNCDESC_GOTOFFLO:
4008 case R_FRV_GOTTLSOFFLO:
4009 case R_FRV_GOTTLSDESCLO:
4010 case R_FRV_TLSMOFFLO:
4011 relocation &= 0xffff;
4012 break;
4013
4014 default:
4015 break;
4016 }
4017
4018 switch (r_type)
4019 {
4020 case R_FRV_LABEL24:
4021 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
4022 break;
4023 /* Fall through. */
4024
4025 /* When referencing a GOT entry, a function descriptor or a
4026 PLT, we don't want the addend to apply to the reference,
4027 but rather to the referenced symbol. The actual entry
4028 will have already been created taking the addend into
4029 account, so cancel it out here. */
4030 case R_FRV_GOT12:
4031 case R_FRV_GOTHI:
4032 case R_FRV_GOTLO:
4033 case R_FRV_FUNCDESC_GOT12:
4034 case R_FRV_FUNCDESC_GOTHI:
4035 case R_FRV_FUNCDESC_GOTLO:
4036 case R_FRV_FUNCDESC_GOTOFF12:
4037 case R_FRV_FUNCDESC_GOTOFFHI:
4038 case R_FRV_FUNCDESC_GOTOFFLO:
4039 case R_FRV_GETTLSOFF:
4040 case R_FRV_GOTTLSDESC12:
4041 case R_FRV_GOTTLSDESCHI:
4042 case R_FRV_GOTTLSDESCLO:
4043 case R_FRV_GOTTLSOFF12:
4044 case R_FRV_GOTTLSOFFHI:
4045 case R_FRV_GOTTLSOFFLO:
4046 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
4047 here, since we do want to apply the addend to the others.
4048 Note that we've applied the addend to GOTOFFHI before we
4049 shifted it right. */
4050 case R_FRV_GOTOFFHI:
4051 case R_FRV_TLSMOFFHI:
4052 relocation -= rel->r_addend;
4053 break;
4054
4055 default:
4056 break;
4057 }
4058
4059 if (r_type == R_FRV_HI16)
4060 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
4061
4062 else if (r_type == R_FRV_LO16)
4063 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
4064
4065 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4066 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4067 contents, relocation);
4068
4069 else if (r_type == R_FRV_GPREL12)
4070 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4071 contents, relocation);
4072
4073 else if (r_type == R_FRV_GPRELU12)
4074 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4075 contents, relocation);
4076
4077 else if (r_type == R_FRV_GPRELLO)
4078 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4079 contents, relocation);
4080
4081 else if (r_type == R_FRV_GPRELHI)
4082 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4083 contents, relocation);
4084
4085 else if (r_type == R_FRV_TLSOFF
4086 || r_type == R_FRV_TLSDESC_VALUE)
4087 r = bfd_reloc_notsupported;
4088
4089 else
4090 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4091 rel, relocation);
4092
4093 if (r != bfd_reloc_ok)
4094 {
4095 const char * msg = (const char *) NULL;
4096
4097 switch (r)
4098 {
4099 case bfd_reloc_overflow:
4100 r = info->callbacks->reloc_overflow
4101 (info, (h ? &h->root : NULL), name, howto->name,
4102 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4103 break;
4104
4105 case bfd_reloc_undefined:
4106 r = info->callbacks->undefined_symbol
4107 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4108 break;
4109
4110 case bfd_reloc_outofrange:
4111 msg = _("internal error: out of range error");
4112 break;
4113
4114 case bfd_reloc_notsupported:
4115 msg = _("internal error: unsupported relocation error");
4116 break;
4117
4118 case bfd_reloc_dangerous:
4119 msg = _("internal error: dangerous relocation");
4120 break;
4121
4122 default:
4123 msg = _("internal error: unknown error");
4124 break;
4125 }
4126
4127 if (msg)
4128 {
4129 (*_bfd_error_handler)
4130 (_("%B(%A+0x%lx): reloc against `%s': %s"),
4131 input_bfd, input_section, (long)rel->r_offset, name, msg);
4132 return FALSE;
4133 }
4134
4135 if (! r)
4136 return FALSE;
4137 }
4138 }
4139
4140 return TRUE;
4141 }
4142 \f
4143 /* Return the section that should be marked against GC for a given
4144 relocation. */
4145
4146 static asection *
4147 elf32_frv_gc_mark_hook (asection *sec,
4148 struct bfd_link_info *info,
4149 Elf_Internal_Rela *rel,
4150 struct elf_link_hash_entry *h,
4151 Elf_Internal_Sym *sym)
4152 {
4153 if (h != NULL)
4154 switch (ELF32_R_TYPE (rel->r_info))
4155 {
4156 case R_FRV_GNU_VTINHERIT:
4157 case R_FRV_GNU_VTENTRY:
4158 return NULL;
4159 }
4160
4161 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4162 }
4163 \f
4164 /* Hook called by the linker routine which adds symbols from an object
4165 file. We use it to put .comm items in .scomm, and not .comm. */
4166
4167 static bfd_boolean
4168 elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
4169 bfd *abfd;
4170 struct bfd_link_info *info;
4171 Elf_Internal_Sym *sym;
4172 const char **namep ATTRIBUTE_UNUSED;
4173 flagword *flagsp ATTRIBUTE_UNUSED;
4174 asection **secp;
4175 bfd_vma *valp;
4176 {
4177 if (sym->st_shndx == SHN_COMMON
4178 && !info->relocatable
4179 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4180 {
4181 /* Common symbols less than or equal to -G nn bytes are
4182 automatically put into .sbss. */
4183
4184 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4185
4186 if (scomm == NULL)
4187 {
4188 scomm = bfd_make_section_with_flags (abfd, ".scommon",
4189 (SEC_ALLOC
4190 | SEC_IS_COMMON
4191 | SEC_LINKER_CREATED));
4192 if (scomm == NULL)
4193 return FALSE;
4194 }
4195
4196 *secp = scomm;
4197 *valp = sym->st_size;
4198 }
4199
4200 return TRUE;
4201 }
4202
4203 /* We need dynamic symbols for every section, since segments can
4204 relocate independently. */
4205 static bfd_boolean
4206 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4207 struct bfd_link_info *info
4208 ATTRIBUTE_UNUSED,
4209 asection *p ATTRIBUTE_UNUSED)
4210 {
4211 switch (elf_section_data (p)->this_hdr.sh_type)
4212 {
4213 case SHT_PROGBITS:
4214 case SHT_NOBITS:
4215 /* If sh_type is yet undecided, assume it could be
4216 SHT_PROGBITS/SHT_NOBITS. */
4217 case SHT_NULL:
4218 return FALSE;
4219
4220 /* There shouldn't be section relative relocations
4221 against any other section. */
4222 default:
4223 return TRUE;
4224 }
4225 }
4226
4227 /* Create a .got section, as well as its additional info field. This
4228 is almost entirely copied from
4229 elflink.c:_bfd_elf_create_got_section(). */
4230
4231 static bfd_boolean
4232 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4233 {
4234 flagword flags, pltflags;
4235 asection *s;
4236 struct elf_link_hash_entry *h;
4237 struct bfd_link_hash_entry *bh;
4238 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4239 int ptralign;
4240 int offset;
4241
4242 /* This function may be called more than once. */
4243 s = bfd_get_section_by_name (abfd, ".got");
4244 if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
4245 return TRUE;
4246
4247 /* Machine specific: although pointers are 32-bits wide, we want the
4248 GOT to be aligned to a 64-bit boundary, such that function
4249 descriptors in it can be accessed with 64-bit loads and
4250 stores. */
4251 ptralign = 3;
4252
4253 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4254 | SEC_LINKER_CREATED);
4255 pltflags = flags;
4256
4257 s = bfd_make_section_with_flags (abfd, ".got", flags);
4258 if (s == NULL
4259 || !bfd_set_section_alignment (abfd, s, ptralign))
4260 return FALSE;
4261
4262 if (bed->want_got_plt)
4263 {
4264 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
4265 if (s == NULL
4266 || !bfd_set_section_alignment (abfd, s, ptralign))
4267 return FALSE;
4268 }
4269
4270 if (bed->want_got_sym)
4271 {
4272 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4273 (or .got.plt) section. We don't do this in the linker script
4274 because we don't want to define the symbol if we are not creating
4275 a global offset table. */
4276 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4277 elf_hash_table (info)->hgot = h;
4278 if (h == NULL)
4279 return FALSE;
4280
4281 /* Machine-specific: we want the symbol for executables as
4282 well. */
4283 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4284 return FALSE;
4285 }
4286
4287 /* The first bit of the global offset table is the header. */
4288 s->size += bed->got_header_size;
4289
4290 /* This is the machine-specific part. Create and initialize section
4291 data for the got. */
4292 if (IS_FDPIC (abfd))
4293 {
4294 frvfdpic_got_section (info) = s;
4295 frvfdpic_relocs_info (info) = htab_try_create (1,
4296 frvfdpic_relocs_info_hash,
4297 frvfdpic_relocs_info_eq,
4298 (htab_del) NULL);
4299 if (! frvfdpic_relocs_info (info))
4300 return FALSE;
4301
4302 s = bfd_make_section_with_flags (abfd, ".rel.got",
4303 (flags | SEC_READONLY));
4304 if (s == NULL
4305 || ! bfd_set_section_alignment (abfd, s, 2))
4306 return FALSE;
4307
4308 frvfdpic_gotrel_section (info) = s;
4309
4310 /* Machine-specific. */
4311 s = bfd_make_section_with_flags (abfd, ".rofixup",
4312 (flags | SEC_READONLY));
4313 if (s == NULL
4314 || ! bfd_set_section_alignment (abfd, s, 2))
4315 return FALSE;
4316
4317 frvfdpic_gotfixup_section (info) = s;
4318 offset = -2048;
4319 flags = BSF_GLOBAL;
4320 }
4321 else
4322 {
4323 offset = 2048;
4324 flags = BSF_GLOBAL | BSF_WEAK;
4325 }
4326
4327 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
4328 turns out that we're linking with a different linker script, the
4329 linker script will override it. */
4330 bh = NULL;
4331 if (!(_bfd_generic_link_add_one_symbol
4332 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4333 bed->collect, &bh)))
4334 return FALSE;
4335 h = (struct elf_link_hash_entry *) bh;
4336 h->def_regular = 1;
4337 h->type = STT_OBJECT;
4338 /* h->other = STV_HIDDEN; */ /* Should we? */
4339
4340 /* Machine-specific: we want the symbol for executables as well. */
4341 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4342 return FALSE;
4343
4344 if (!IS_FDPIC (abfd))
4345 return TRUE;
4346
4347 /* FDPIC supports Thread Local Storage, and this may require a
4348 procedure linkage table for TLS PLT entries. */
4349
4350 /* This is mostly copied from
4351 elflink.c:_bfd_elf_create_dynamic_sections(). */
4352
4353 flags = pltflags;
4354 pltflags |= SEC_CODE;
4355 if (bed->plt_not_loaded)
4356 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4357 if (bed->plt_readonly)
4358 pltflags |= SEC_READONLY;
4359
4360 s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
4361 if (s == NULL
4362 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4363 return FALSE;
4364 /* FRV-specific: remember it. */
4365 frvfdpic_plt_section (info) = s;
4366
4367 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4368 .plt section. */
4369 if (bed->want_plt_sym)
4370 {
4371 h = _bfd_elf_define_linkage_sym (abfd, info, s,
4372 "_PROCEDURE_LINKAGE_TABLE_");
4373 elf_hash_table (info)->hplt = h;
4374 if (h == NULL)
4375 return FALSE;
4376 }
4377
4378 /* FRV-specific: we want rel relocations for the plt. */
4379 s = bfd_make_section_with_flags (abfd, ".rel.plt",
4380 flags | SEC_READONLY);
4381 if (s == NULL
4382 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4383 return FALSE;
4384 /* FRV-specific: remember it. */
4385 frvfdpic_pltrel_section (info) = s;
4386
4387 return TRUE;
4388 }
4389
4390 /* Make sure the got and plt sections exist, and that our pointers in
4391 the link hash table point to them. */
4392
4393 static bfd_boolean
4394 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4395 {
4396 /* This is mostly copied from
4397 elflink.c:_bfd_elf_create_dynamic_sections(). */
4398 flagword flags;
4399 asection *s;
4400 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4401
4402 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4403 | SEC_LINKER_CREATED);
4404
4405 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4406 .rel[a].bss sections. */
4407
4408 /* FRV-specific: we want to create the GOT and the PLT in the FRV
4409 way. */
4410 if (! _frv_create_got_section (abfd, info))
4411 return FALSE;
4412
4413 /* FRV-specific: make sure we created everything we wanted. */
4414 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4415 && frvfdpic_gotfixup_section (info)
4416 && frvfdpic_plt_section (info)
4417 && frvfdpic_pltrel_section (info));
4418
4419 if (bed->want_dynbss)
4420 {
4421 /* The .dynbss section is a place to put symbols which are defined
4422 by dynamic objects, are referenced by regular objects, and are
4423 not functions. We must allocate space for them in the process
4424 image and use a R_*_COPY reloc to tell the dynamic linker to
4425 initialize them at run time. The linker script puts the .dynbss
4426 section into the .bss section of the final image. */
4427 s = bfd_make_section_with_flags (abfd, ".dynbss",
4428 SEC_ALLOC | SEC_LINKER_CREATED);
4429 if (s == NULL)
4430 return FALSE;
4431
4432 /* The .rel[a].bss section holds copy relocs. This section is not
4433 normally needed. We need to create it here, though, so that the
4434 linker will map it to an output section. We can't just create it
4435 only if we need it, because we will not know whether we need it
4436 until we have seen all the input files, and the first time the
4437 main linker code calls BFD after examining all the input files
4438 (size_dynamic_sections) the input sections have already been
4439 mapped to the output sections. If the section turns out not to
4440 be needed, we can discard it later. We will never need this
4441 section when generating a shared object, since they do not use
4442 copy relocs. */
4443 if (! info->shared)
4444 {
4445 s = bfd_make_section_with_flags (abfd,
4446 (bed->default_use_rela_p
4447 ? ".rela.bss" : ".rel.bss"),
4448 flags | SEC_READONLY);
4449 if (s == NULL
4450 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4451 return FALSE;
4452 }
4453 }
4454
4455 return TRUE;
4456 }
4457
4458 /* Compute the total GOT and PLT size required by each symbol in each
4459 range. Symbols may require up to 4 words in the GOT: an entry
4460 pointing to the symbol, an entry pointing to its function
4461 descriptor, and a private function descriptors taking two
4462 words. */
4463
4464 static void
4465 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4466 struct _frvfdpic_dynamic_got_info *dinfo)
4467 {
4468 /* Allocate space for a GOT entry pointing to the symbol. */
4469 if (entry->got12)
4470 dinfo->got12 += 4;
4471 else if (entry->gotlos)
4472 dinfo->gotlos += 4;
4473 else if (entry->gothilo)
4474 dinfo->gothilo += 4;
4475 else
4476 entry->relocs32--;
4477 entry->relocs32++;
4478
4479 /* Allocate space for a GOT entry pointing to the function
4480 descriptor. */
4481 if (entry->fdgot12)
4482 dinfo->got12 += 4;
4483 else if (entry->fdgotlos)
4484 dinfo->gotlos += 4;
4485 else if (entry->fdgothilo)
4486 dinfo->gothilo += 4;
4487 else
4488 entry->relocsfd--;
4489 entry->relocsfd++;
4490
4491 /* Decide whether we need a PLT entry, a function descriptor in the
4492 GOT, and a lazy PLT entry for this symbol. */
4493 entry->plt = entry->call
4494 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4495 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4496 entry->privfd = entry->plt
4497 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4498 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4499 && (entry->symndx != -1
4500 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4501 entry->lazyplt = entry->privfd
4502 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4503 && ! (dinfo->info->flags & DF_BIND_NOW)
4504 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4505
4506 /* Allocate space for a function descriptor. */
4507 if (entry->fdgoff12)
4508 dinfo->fd12 += 8;
4509 else if (entry->fdgofflos)
4510 dinfo->fdlos += 8;
4511 else if (entry->privfd && entry->plt)
4512 dinfo->fdplt += 8;
4513 else if (entry->privfd)
4514 dinfo->fdhilo += 8;
4515 else
4516 entry->relocsfdv--;
4517 entry->relocsfdv++;
4518
4519 if (entry->lazyplt)
4520 dinfo->lzplt += 8;
4521 }
4522
4523 /* Compute the total GOT size required by each TLS symbol in each
4524 range. Symbols may require up to 5 words in the GOT: an entry
4525 holding the TLS offset for the symbol, and an entry with a full TLS
4526 descriptor taking 4 words. */
4527
4528 static void
4529 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4530 struct _frvfdpic_dynamic_got_info *dinfo,
4531 bfd_boolean subtract)
4532 {
4533 const int l = subtract ? -1 : 1;
4534
4535 /* Allocate space for a GOT entry with the TLS offset of the
4536 symbol. */
4537 if (entry->tlsoff12)
4538 dinfo->got12 += 4 * l;
4539 else if (entry->tlsofflos)
4540 dinfo->gotlos += 4 * l;
4541 else if (entry->tlsoffhilo)
4542 dinfo->gothilo += 4 * l;
4543 else
4544 entry->relocstlsoff -= l;
4545 entry->relocstlsoff += l;
4546
4547 /* If there's any TLSOFF relocation, mark the output file as not
4548 suitable for dlopening. This mark will remain even if we relax
4549 all such relocations, but this is not a problem, since we'll only
4550 do so for executables, and we definitely don't want anyone
4551 dlopening executables. */
4552 if (entry->relocstlsoff)
4553 dinfo->info->flags |= DF_STATIC_TLS;
4554
4555 /* Allocate space for a TLS descriptor. */
4556 if (entry->tlsdesc12)
4557 dinfo->tlsd12 += 8 * l;
4558 else if (entry->tlsdesclos)
4559 dinfo->tlsdlos += 8 * l;
4560 else if (entry->tlsplt)
4561 dinfo->tlsdplt += 8 * l;
4562 else if (entry->tlsdeschilo)
4563 dinfo->tlsdhilo += 8 * l;
4564 else
4565 entry->relocstlsd -= l;
4566 entry->relocstlsd += l;
4567 }
4568
4569 /* Compute the number of dynamic relocations and fixups that a symbol
4570 requires, and add (or subtract) from the grand and per-symbol
4571 totals. */
4572
4573 static void
4574 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4575 struct _frvfdpic_dynamic_got_info *dinfo,
4576 bfd_boolean subtract)
4577 {
4578 bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4579
4580 if (!dinfo->info->executable || dinfo->info->pie)
4581 {
4582 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4583 + entry->relocstlsd;
4584
4585 /* In the executable, TLS relocations to symbols that bind
4586 locally (including those that resolve to global TLS offsets)
4587 are resolved immediately, without any need for fixups or
4588 dynamic relocations. In shared libraries, however, we must
4589 emit dynamic relocations even for local symbols, because we
4590 don't know the module id the library is going to get at
4591 run-time, nor its TLS base offset. */
4592 if (!dinfo->info->executable
4593 || (entry->symndx == -1
4594 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4595 relocs += entry->relocstlsoff;
4596 }
4597 else
4598 {
4599 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4600 {
4601 if (entry->symndx != -1
4602 || entry->d.h->root.type != bfd_link_hash_undefweak)
4603 fixups += entry->relocs32 + 2 * entry->relocsfdv;
4604 fixups += entry->relocstlsd;
4605 tlsrets += entry->relocstlsd;
4606 }
4607 else
4608 {
4609 relocs += entry->relocs32 + entry->relocsfdv
4610 + entry->relocstlsoff + entry->relocstlsd;
4611 }
4612
4613 if (entry->symndx != -1
4614 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4615 {
4616 if (entry->symndx != -1
4617 || entry->d.h->root.type != bfd_link_hash_undefweak)
4618 fixups += entry->relocsfd;
4619 }
4620 else
4621 relocs += entry->relocsfd;
4622 }
4623
4624 if (subtract)
4625 {
4626 relocs = - relocs;
4627 fixups = - fixups;
4628 tlsrets = - tlsrets;
4629 }
4630
4631 entry->dynrelocs += relocs;
4632 entry->fixups += fixups;
4633 dinfo->relocs += relocs;
4634 dinfo->fixups += fixups;
4635 dinfo->tls_ret_refs += tlsrets;
4636 }
4637
4638 /* Look for opportunities to relax TLS relocations. We can assume
4639 we're linking the main executable or a static-tls library, since
4640 otherwise we wouldn't have got here. When relaxing, we have to
4641 first undo any previous accounting of TLS uses of fixups, dynamic
4642 relocations, GOT and PLT entries. */
4643
4644 static void
4645 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4646 struct _frvfdpic_dynamic_got_info *dinfo,
4647 bfd_boolean relaxing)
4648 {
4649 bfd_boolean changed = ! relaxing;
4650
4651 BFD_ASSERT (dinfo->info->executable
4652 || (dinfo->info->flags & DF_STATIC_TLS));
4653
4654 if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4655 {
4656 if (! changed)
4657 {
4658 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4659 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4660 changed = TRUE;
4661 }
4662
4663 /* When linking an executable, we can always decay GOTTLSDESC to
4664 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4665 When linking a static-tls shared library, using TLSMOFF is
4666 not an option, but we can still use GOTTLSOFF. When decaying
4667 to GOTTLSOFF, we must keep the GOT entry in range. We know
4668 it has to fit because we'll be trading the 4 words of hte TLS
4669 descriptor for a single word in the same range. */
4670 if (! dinfo->info->executable
4671 || (entry->symndx == -1
4672 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4673 {
4674 entry->tlsoff12 |= entry->tlsdesc12;
4675 entry->tlsofflos |= entry->tlsdesclos;
4676 entry->tlsoffhilo |= entry->tlsdeschilo;
4677 }
4678
4679 entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4680 }
4681
4682 /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4683 main executable. We have to check whether the symbol's TLSOFF is
4684 in range for a setlos. For symbols with a hash entry, we can
4685 determine exactly what to do; for others locals, we don't have
4686 addresses handy, so we use the size of the TLS section as an
4687 approximation. If we get it wrong, we'll retain a GOT entry
4688 holding the TLS offset (without dynamic relocations or fixups),
4689 but we'll still optimize away the loads from it. Since TLS sizes
4690 are generally very small, it's probably not worth attempting to
4691 do better than this. */
4692 if ((entry->tlsplt
4693 || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4694 && dinfo->info->executable && relaxing
4695 && ((entry->symndx == -1
4696 && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4697 /* The above may hold for an undefweak TLS symbol, so make
4698 sure we don't have this case before accessing def.value
4699 and def.section. */
4700 && (entry->d.h->root.type == bfd_link_hash_undefweak
4701 || (bfd_vma)(entry->d.h->root.u.def.value
4702 + (entry->d.h->root.u.def.section
4703 ->output_section->vma)
4704 + entry->d.h->root.u.def.section->output_offset
4705 + entry->addend
4706 - tls_biased_base (dinfo->info)
4707 + 32768) < (bfd_vma)65536))
4708 || (entry->symndx != -1
4709 && (elf_hash_table (dinfo->info)->tls_sec->size
4710 + abs (entry->addend) < 32768 + FRVFDPIC_TLS_BIAS))))
4711 {
4712 if (! changed)
4713 {
4714 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4715 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4716 changed = TRUE;
4717 }
4718
4719 entry->tlsplt =
4720 entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4721 }
4722
4723 /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4724 have a #gottlsoff12 relocation for this entry, or if we can fit
4725 one more in the 12-bit (and 16-bit) ranges. */
4726 if (entry->tlsplt
4727 && (entry->tlsoff12
4728 || (relaxing
4729 && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4730 && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4731 + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4732 <= 65536 - 12 - 4))))
4733 {
4734 if (! changed)
4735 {
4736 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4737 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4738 changed = TRUE;
4739 }
4740
4741 entry->tlsoff12 = 1;
4742 entry->tlsplt = 0;
4743 }
4744
4745 if (changed)
4746 {
4747 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4748 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4749 }
4750
4751 return;
4752 }
4753
4754 /* Compute the total GOT and PLT size required by each symbol in each range. *
4755 Symbols may require up to 4 words in the GOT: an entry pointing to
4756 the symbol, an entry pointing to its function descriptor, and a
4757 private function descriptors taking two words. */
4758
4759 static int
4760 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4761 {
4762 struct frvfdpic_relocs_info *entry = *entryp;
4763 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4764
4765 _frvfdpic_count_nontls_entries (entry, dinfo);
4766
4767 if (dinfo->info->executable || (dinfo->info->flags & DF_STATIC_TLS))
4768 _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4769 else
4770 {
4771 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4772 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4773 }
4774
4775 return 1;
4776 }
4777
4778 /* Determine the positive and negative ranges to be used by each
4779 offset range in the GOT. FDCUR and CUR, that must be aligned to a
4780 double-word boundary, are the minimum (negative) and maximum
4781 (positive) GOT offsets already used by previous ranges, except for
4782 an ODD entry that may have been left behind. GOT and FD indicate
4783 the size of GOT entries and function descriptors that must be
4784 placed within the range from -WRAP to WRAP. If there's room left,
4785 up to FDPLT bytes should be reserved for additional function
4786 descriptors. */
4787
4788 inline static bfd_signed_vma
4789 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4790 bfd_signed_vma fdcur,
4791 bfd_signed_vma odd,
4792 bfd_signed_vma cur,
4793 bfd_vma got,
4794 bfd_vma fd,
4795 bfd_vma fdplt,
4796 bfd_vma tlsd,
4797 bfd_vma tlsdplt,
4798 bfd_vma wrap)
4799 {
4800 bfd_signed_vma wrapmin = -wrap;
4801 const bfd_vma tdescsz = 8;
4802
4803 /* Start at the given initial points. */
4804 gad->fdcur = fdcur;
4805 gad->cur = cur;
4806
4807 /* If we had an incoming odd word and we have any got entries that
4808 are going to use it, consume it, otherwise leave gad->odd at
4809 zero. We might force gad->odd to zero and return the incoming
4810 odd such that it is used by the next range, but then GOT entries
4811 might appear to be out of order and we wouldn't be able to
4812 shorten the GOT by one word if it turns out to end with an
4813 unpaired GOT entry. */
4814 if (odd && got)
4815 {
4816 gad->odd = odd;
4817 got -= 4;
4818 odd = 0;
4819 }
4820 else
4821 gad->odd = 0;
4822
4823 /* If we're left with an unpaired GOT entry, compute its location
4824 such that we can return it. Otherwise, if got doesn't require an
4825 odd number of words here, either odd was already zero in the
4826 block above, or it was set to zero because got was non-zero, or
4827 got was already zero. In the latter case, we want the value of
4828 odd to carry over to the return statement, so we don't want to
4829 reset odd unless the condition below is true. */
4830 if (got & 4)
4831 {
4832 odd = cur + got;
4833 got += 4;
4834 }
4835
4836 /* Compute the tentative boundaries of this range. */
4837 gad->max = cur + got;
4838 gad->min = fdcur - fd;
4839 gad->fdplt = 0;
4840
4841 /* If function descriptors took too much space, wrap some of them
4842 around. */
4843 if (gad->min < wrapmin)
4844 {
4845 gad->max += wrapmin - gad->min;
4846 gad->tmin = gad->min = wrapmin;
4847 }
4848
4849 /* If GOT entries took too much space, wrap some of them around.
4850 This may well cause gad->min to become lower than wrapmin. This
4851 will cause a relocation overflow later on, so we don't have to
4852 report it here . */
4853 if ((bfd_vma) gad->max > wrap)
4854 {
4855 gad->min -= gad->max - wrap;
4856 gad->max = wrap;
4857 }
4858
4859 /* Add TLS descriptors. */
4860 gad->tmax = gad->max + tlsd;
4861 gad->tmin = gad->min;
4862 gad->tlsdplt = 0;
4863
4864 /* If TLS descriptors took too much space, wrap an integral number
4865 of them around. */
4866 if ((bfd_vma) gad->tmax > wrap)
4867 {
4868 bfd_vma wrapsize = gad->tmax - wrap;
4869
4870 wrapsize += tdescsz / 2;
4871 wrapsize &= ~ tdescsz / 2;
4872
4873 gad->tmin -= wrapsize;
4874 gad->tmax -= wrapsize;
4875 }
4876
4877 /* If there is space left and we have function descriptors
4878 referenced in PLT entries that could take advantage of shorter
4879 offsets, place them now. */
4880 if (fdplt && gad->tmin > wrapmin)
4881 {
4882 bfd_vma fds;
4883
4884 if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4885 fds = gad->tmin - wrapmin;
4886 else
4887 fds = fdplt;
4888
4889 fdplt -= fds;
4890 gad->min -= fds;
4891 gad->tmin -= fds;
4892 gad->fdplt += fds;
4893 }
4894
4895 /* If there is more space left, try to place some more function
4896 descriptors for PLT entries. */
4897 if (fdplt && (bfd_vma) gad->tmax < wrap)
4898 {
4899 bfd_vma fds;
4900
4901 if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4902 fds = wrap - gad->tmax;
4903 else
4904 fds = fdplt;
4905
4906 fdplt -= fds;
4907 gad->max += fds;
4908 gad->tmax += fds;
4909 gad->fdplt += fds;
4910 }
4911
4912 /* If there is space left and we have TLS descriptors referenced in
4913 PLT entries that could take advantage of shorter offsets, place
4914 them now. */
4915 if (tlsdplt && gad->tmin > wrapmin)
4916 {
4917 bfd_vma tlsds;
4918
4919 if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4920 tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4921 else
4922 tlsds = tlsdplt;
4923
4924 tlsdplt -= tlsds;
4925 gad->tmin -= tlsds;
4926 gad->tlsdplt += tlsds;
4927 }
4928
4929 /* If there is more space left, try to place some more TLS
4930 descriptors for PLT entries. Although we could try to fit an
4931 additional TLS descriptor with half of it just before before the
4932 wrap point and another right past the wrap point, this might
4933 cause us to run out of space for the next region, so don't do
4934 it. */
4935 if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4936 {
4937 bfd_vma tlsds;
4938
4939 if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4940 tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4941 else
4942 tlsds = tlsdplt;
4943
4944 tlsdplt -= tlsds;
4945 gad->tmax += tlsds;
4946 gad->tlsdplt += tlsds;
4947 }
4948
4949 /* If odd was initially computed as an offset past the wrap point,
4950 wrap it around. */
4951 if (odd > gad->max)
4952 odd = gad->min + odd - gad->max;
4953
4954 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4955 before returning, so do it here too. This guarantees that,
4956 should cur and fdcur meet at the wrap point, they'll both be
4957 equal to min. */
4958 if (gad->cur == gad->max)
4959 gad->cur = gad->min;
4960
4961 /* Ditto for _frvfdpic_get_tlsdesc_entry(). */
4962 gad->tcur = gad->max;
4963 if (gad->tcur == gad->tmax)
4964 gad->tcur = gad->tmin;
4965
4966 return odd;
4967 }
4968
4969 /* Compute the location of the next GOT entry, given the allocation
4970 data for a range. */
4971
4972 inline static bfd_signed_vma
4973 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4974 {
4975 bfd_signed_vma ret;
4976
4977 if (gad->odd)
4978 {
4979 /* If there was an odd word left behind, use it. */
4980 ret = gad->odd;
4981 gad->odd = 0;
4982 }
4983 else
4984 {
4985 /* Otherwise, use the word pointed to by cur, reserve the next
4986 as an odd word, and skip to the next pair of words, possibly
4987 wrapping around. */
4988 ret = gad->cur;
4989 gad->odd = gad->cur + 4;
4990 gad->cur += 8;
4991 if (gad->cur == gad->max)
4992 gad->cur = gad->min;
4993 }
4994
4995 return ret;
4996 }
4997
4998 /* Compute the location of the next function descriptor entry in the
4999 GOT, given the allocation data for a range. */
5000
5001 inline static bfd_signed_vma
5002 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5003 {
5004 /* If we're at the bottom, wrap around, and only then allocate the
5005 next pair of words. */
5006 if (gad->fdcur == gad->min)
5007 gad->fdcur = gad->max;
5008 return gad->fdcur -= 8;
5009 }
5010
5011 /* Compute the location of the next TLS descriptor entry in the GOT,
5012 given the allocation data for a range. */
5013 inline static bfd_signed_vma
5014 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5015 {
5016 bfd_signed_vma ret;
5017
5018 ret = gad->tcur;
5019
5020 gad->tcur += 8;
5021
5022 /* If we're at the top of the region, wrap around to the bottom. */
5023 if (gad->tcur == gad->tmax)
5024 gad->tcur = gad->tmin;
5025
5026 return ret;
5027 }
5028
5029 /* Assign GOT offsets for every GOT entry and function descriptor.
5030 Doing everything in a single pass is tricky. */
5031
5032 static int
5033 _frvfdpic_assign_got_entries (void **entryp, void *info_)
5034 {
5035 struct frvfdpic_relocs_info *entry = *entryp;
5036 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5037
5038 if (entry->got12)
5039 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5040 else if (entry->gotlos)
5041 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5042 else if (entry->gothilo)
5043 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5044
5045 if (entry->fdgot12)
5046 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5047 else if (entry->fdgotlos)
5048 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5049 else if (entry->fdgothilo)
5050 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5051
5052 if (entry->fdgoff12)
5053 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5054 else if (entry->plt && dinfo->got12.fdplt)
5055 {
5056 dinfo->got12.fdplt -= 8;
5057 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5058 }
5059 else if (entry->fdgofflos)
5060 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5061 else if (entry->plt && dinfo->gotlos.fdplt)
5062 {
5063 dinfo->gotlos.fdplt -= 8;
5064 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5065 }
5066 else if (entry->plt)
5067 {
5068 dinfo->gothilo.fdplt -= 8;
5069 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5070 }
5071 else if (entry->privfd)
5072 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5073
5074 if (entry->tlsoff12)
5075 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5076 else if (entry->tlsofflos)
5077 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5078 else if (entry->tlsoffhilo)
5079 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5080
5081 if (entry->tlsdesc12)
5082 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5083 else if (entry->tlsplt && dinfo->got12.tlsdplt)
5084 {
5085 dinfo->got12.tlsdplt -= 8;
5086 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5087 }
5088 else if (entry->tlsdesclos)
5089 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5090 else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5091 {
5092 dinfo->gotlos.tlsdplt -= 8;
5093 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5094 }
5095 else if (entry->tlsplt)
5096 {
5097 dinfo->gothilo.tlsdplt -= 8;
5098 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5099 }
5100 else if (entry->tlsdeschilo)
5101 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5102
5103 return 1;
5104 }
5105
5106 /* Assign GOT offsets to private function descriptors used by PLT
5107 entries (or referenced by 32-bit offsets), as well as PLT entries
5108 and lazy PLT entries. */
5109
5110 static int
5111 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5112 {
5113 struct frvfdpic_relocs_info *entry = *entryp;
5114 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5115
5116 if (entry->privfd)
5117 BFD_ASSERT (entry->fd_entry);
5118
5119 if (entry->plt)
5120 {
5121 int size;
5122
5123 /* We use the section's raw size to mark the location of the
5124 next PLT entry. */
5125 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5126
5127 /* Figure out the length of this PLT entry based on the
5128 addressing mode we need to reach the function descriptor. */
5129 BFD_ASSERT (entry->fd_entry);
5130 if (entry->fd_entry >= -(1 << (12 - 1))
5131 && entry->fd_entry < (1 << (12 - 1)))
5132 size = 8;
5133 else if (entry->fd_entry >= -(1 << (16 - 1))
5134 && entry->fd_entry < (1 << (16 - 1)))
5135 size = 12;
5136 else
5137 size = 16;
5138
5139 frvfdpic_plt_section (dinfo->g.info)->size += size;
5140 }
5141
5142 if (entry->lazyplt)
5143 {
5144 entry->lzplt_entry = dinfo->g.lzplt;
5145 dinfo->g.lzplt += 8;
5146 /* If this entry is the one that gets the resolver stub, account
5147 for the additional instruction. */
5148 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5149 == FRVFDPIC_LZPLT_RESOLV_LOC)
5150 dinfo->g.lzplt += 4;
5151 }
5152
5153 if (entry->tlsplt)
5154 {
5155 int size;
5156
5157 entry->tlsplt_entry
5158 = frvfdpic_plt_section (dinfo->g.info)->size;
5159
5160 if (dinfo->g.info->executable
5161 && (entry->symndx != -1
5162 || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5163 {
5164 if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5165 /* FIXME: here we use the size of the TLS section
5166 as an upper bound for the value of the TLS
5167 symbol, because we may not know the exact value
5168 yet. If we get it wrong, we'll just waste a
5169 word in the PLT, and we should never get even
5170 close to 32 KiB of TLS anyway. */
5171 && elf_hash_table (dinfo->g.info)->tls_sec
5172 && (elf_hash_table (dinfo->g.info)->tls_sec->size
5173 + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5174 size = 8;
5175 else
5176 size = 12;
5177 }
5178 else if (entry->tlsoff_entry)
5179 {
5180 if (entry->tlsoff_entry >= -(1 << (12 - 1))
5181 && entry->tlsoff_entry < (1 << (12 - 1)))
5182 size = 8;
5183 else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5184 && entry->tlsoff_entry < (1 << (16 - 1)))
5185 size = 12;
5186 else
5187 size = 16;
5188 }
5189 else
5190 {
5191 BFD_ASSERT (entry->tlsdesc_entry);
5192
5193 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5194 && entry->tlsdesc_entry < (1 << (12 - 1)))
5195 size = 8;
5196 else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5197 && entry->tlsdesc_entry < (1 << (16 - 1)))
5198 size = 12;
5199 else
5200 size = 16;
5201 }
5202
5203 frvfdpic_plt_section (dinfo->g.info)->size += size;
5204 }
5205
5206 return 1;
5207 }
5208
5209 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5210 _frvfdpic_assign_plt_entries. */
5211
5212 static int
5213 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5214 {
5215 struct frvfdpic_relocs_info *entry = *entryp;
5216
5217 entry->got_entry = 0;
5218 entry->fdgot_entry = 0;
5219 entry->fd_entry = 0;
5220 entry->plt_entry = (bfd_vma)-1;
5221 entry->lzplt_entry = (bfd_vma)-1;
5222 entry->tlsoff_entry = 0;
5223 entry->tlsdesc_entry = 0;
5224 entry->tlsplt_entry = (bfd_vma)-1;
5225
5226 return 1;
5227 }
5228
5229 /* Follow indirect and warning hash entries so that each got entry
5230 points to the final symbol definition. P must point to a pointer
5231 to the hash table we're traversing. Since this traversal may
5232 modify the hash table, we set this pointer to NULL to indicate
5233 we've made a potentially-destructive change to the hash table, so
5234 the traversal must be restarted. */
5235 static int
5236 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5237 {
5238 struct frvfdpic_relocs_info *entry = *entryp;
5239 htab_t *htab = p;
5240
5241 if (entry->symndx == -1)
5242 {
5243 struct elf_link_hash_entry *h = entry->d.h;
5244 struct frvfdpic_relocs_info *oentry;
5245
5246 while (h->root.type == bfd_link_hash_indirect
5247 || h->root.type == bfd_link_hash_warning)
5248 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5249
5250 if (entry->d.h == h)
5251 return 1;
5252
5253 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5254 NO_INSERT);
5255
5256 if (oentry)
5257 {
5258 /* Merge the two entries. */
5259 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5260 htab_clear_slot (*htab, entryp);
5261 return 1;
5262 }
5263
5264 entry->d.h = h;
5265
5266 /* If we can't find this entry with the new bfd hash, re-insert
5267 it, and get the traversal restarted. */
5268 if (! htab_find (*htab, entry))
5269 {
5270 htab_clear_slot (*htab, entryp);
5271 entryp = htab_find_slot (*htab, entry, INSERT);
5272 if (! *entryp)
5273 *entryp = entry;
5274 /* Abort the traversal, since the whole table may have
5275 moved, and leave it up to the parent to restart the
5276 process. */
5277 *(htab_t *)p = NULL;
5278 return 0;
5279 }
5280 }
5281
5282 return 1;
5283 }
5284
5285 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5286 section and the rofixup section. Assign locations for GOT and PLT
5287 entries. */
5288
5289 static bfd_boolean
5290 _frvfdpic_size_got_plt (bfd *output_bfd,
5291 struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5292 {
5293 bfd_signed_vma odd;
5294 bfd_vma limit, tlslimit;
5295 struct bfd_link_info *info = gpinfop->g.info;
5296 bfd *dynobj = elf_hash_table (info)->dynobj;
5297
5298 memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5299 sizeof (gpinfop->g));
5300
5301 odd = 12;
5302 /* Compute the total size taken by entries in the 12-bit and 16-bit
5303 ranges, to tell how many PLT function descriptors we can bring
5304 into the 12-bit range without causing the 16-bit range to
5305 overflow. */
5306 limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5307 + gpinfop->g.fd12 + gpinfop->g.fdlos
5308 + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5309 if (limit < (bfd_vma)1 << 16)
5310 limit = ((bfd_vma)1 << 16) - limit;
5311 else
5312 limit = 0;
5313 if (gpinfop->g.fdplt < limit)
5314 {
5315 tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5316 limit = gpinfop->g.fdplt;
5317 }
5318 else
5319 tlslimit = 0;
5320 if (gpinfop->g.tlsdplt < tlslimit)
5321 tlslimit = gpinfop->g.tlsdplt;
5322
5323 /* Determine the ranges of GOT offsets that we can use for each
5324 range of addressing modes. */
5325 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5326 0,
5327 odd,
5328 16,
5329 gpinfop->g.got12,
5330 gpinfop->g.fd12,
5331 limit,
5332 gpinfop->g.tlsd12,
5333 tlslimit,
5334 (bfd_vma)1 << (12-1));
5335 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5336 gpinfop->got12.tmin,
5337 odd,
5338 gpinfop->got12.tmax,
5339 gpinfop->g.gotlos,
5340 gpinfop->g.fdlos,
5341 gpinfop->g.fdplt
5342 - gpinfop->got12.fdplt,
5343 gpinfop->g.tlsdlos,
5344 gpinfop->g.tlsdplt
5345 - gpinfop->got12.tlsdplt,
5346 (bfd_vma)1 << (16-1));
5347 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5348 gpinfop->gotlos.tmin,
5349 odd,
5350 gpinfop->gotlos.tmax,
5351 gpinfop->g.gothilo,
5352 gpinfop->g.fdhilo,
5353 gpinfop->g.fdplt
5354 - gpinfop->got12.fdplt
5355 - gpinfop->gotlos.fdplt,
5356 gpinfop->g.tlsdhilo,
5357 gpinfop->g.tlsdplt
5358 - gpinfop->got12.tlsdplt
5359 - gpinfop->gotlos.tlsdplt,
5360 (bfd_vma)1 << (32-1));
5361
5362 /* Now assign (most) GOT offsets. */
5363 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5364 gpinfop);
5365
5366 frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5367 - gpinfop->gothilo.tmin
5368 /* If an odd word is the last word of the GOT, we don't need this
5369 word to be part of the GOT. */
5370 - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5371 if (frvfdpic_got_section (info)->size == 0)
5372 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5373 else if (frvfdpic_got_section (info)->size == 12
5374 && ! elf_hash_table (info)->dynamic_sections_created)
5375 {
5376 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5377 frvfdpic_got_section (info)->size = 0;
5378 }
5379 /* This will be non-NULL during relaxation. The assumption is that
5380 the size of one of these sections will never grow, only shrink,
5381 so we can use the larger buffer we allocated before. */
5382 else if (frvfdpic_got_section (info)->contents == NULL)
5383 {
5384 frvfdpic_got_section (info)->contents =
5385 (bfd_byte *) bfd_zalloc (dynobj,
5386 frvfdpic_got_section (info)->size);
5387 if (frvfdpic_got_section (info)->contents == NULL)
5388 return FALSE;
5389 }
5390
5391 if (frvfdpic_gotrel_section (info))
5392 /* Subtract the number of lzplt entries, since those will generate
5393 relocations in the pltrel section. */
5394 frvfdpic_gotrel_section (info)->size =
5395 (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5396 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5397 else
5398 BFD_ASSERT (gpinfop->g.relocs == 0);
5399 if (frvfdpic_gotrel_section (info)->size == 0)
5400 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5401 else if (frvfdpic_gotrel_section (info)->contents == NULL)
5402 {
5403 frvfdpic_gotrel_section (info)->contents =
5404 (bfd_byte *) bfd_zalloc (dynobj,
5405 frvfdpic_gotrel_section (info)->size);
5406 if (frvfdpic_gotrel_section (info)->contents == NULL)
5407 return FALSE;
5408 }
5409
5410 frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5411 if (frvfdpic_gotfixup_section (info)->size == 0)
5412 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5413 else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5414 {
5415 frvfdpic_gotfixup_section (info)->contents =
5416 (bfd_byte *) bfd_zalloc (dynobj,
5417 frvfdpic_gotfixup_section (info)->size);
5418 if (frvfdpic_gotfixup_section (info)->contents == NULL)
5419 return FALSE;
5420 }
5421
5422 if (frvfdpic_pltrel_section (info))
5423 {
5424 frvfdpic_pltrel_section (info)->size =
5425 gpinfop->g.lzplt / 8
5426 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5427 if (frvfdpic_pltrel_section (info)->size == 0)
5428 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5429 else if (frvfdpic_pltrel_section (info)->contents == NULL)
5430 {
5431 frvfdpic_pltrel_section (info)->contents =
5432 (bfd_byte *) bfd_zalloc (dynobj,
5433 frvfdpic_pltrel_section (info)->size);
5434 if (frvfdpic_pltrel_section (info)->contents == NULL)
5435 return FALSE;
5436 }
5437 }
5438
5439 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5440 such that there's room for the additional instruction needed to
5441 call the resolver. Since _frvfdpic_assign_got_entries didn't
5442 account for them, our block size is 4 bytes smaller than the real
5443 block size. */
5444 if (frvfdpic_plt_section (info))
5445 {
5446 frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5447 + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5448 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5449 }
5450
5451 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5452 actually assign lazy PLT entries addresses. */
5453 gpinfop->g.lzplt = 0;
5454
5455 /* Save information that we're going to need to generate GOT and PLT
5456 entries. */
5457 frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5458
5459 if (get_elf_backend_data (output_bfd)->want_got_sym)
5460 elf_hash_table (info)->hgot->root.u.def.value
5461 = frvfdpic_got_initial_offset (info);
5462
5463 if (frvfdpic_plt_section (info))
5464 frvfdpic_plt_initial_offset (info) =
5465 frvfdpic_plt_section (info)->size;
5466
5467 /* Allocate a ret statement at plt_initial_offset, to be used by
5468 locally-resolved TLS descriptors. */
5469 if (gpinfop->g.tls_ret_refs)
5470 frvfdpic_plt_section (info)->size += 4;
5471
5472 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5473 gpinfop);
5474
5475 /* Allocate the PLT section contents only after
5476 _frvfdpic_assign_plt_entries has a chance to add the size of the
5477 non-lazy PLT entries. */
5478 if (frvfdpic_plt_section (info))
5479 {
5480 if (frvfdpic_plt_section (info)->size == 0)
5481 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5482 else if (frvfdpic_plt_section (info)->contents == NULL)
5483 {
5484 frvfdpic_plt_section (info)->contents =
5485 (bfd_byte *) bfd_zalloc (dynobj,
5486 frvfdpic_plt_section (info)->size);
5487 if (frvfdpic_plt_section (info)->contents == NULL)
5488 return FALSE;
5489 }
5490 }
5491
5492 return TRUE;
5493 }
5494
5495 /* Set the sizes of the dynamic sections. */
5496
5497 static bfd_boolean
5498 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5499 struct bfd_link_info *info)
5500 {
5501 bfd *dynobj;
5502 asection *s;
5503 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5504
5505 dynobj = elf_hash_table (info)->dynobj;
5506 BFD_ASSERT (dynobj != NULL);
5507
5508 if (elf_hash_table (info)->dynamic_sections_created)
5509 {
5510 /* Set the contents of the .interp section to the interpreter. */
5511 if (info->executable)
5512 {
5513 s = bfd_get_section_by_name (dynobj, ".interp");
5514 BFD_ASSERT (s != NULL);
5515 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5516 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5517 }
5518 }
5519
5520 memset (&gpinfo, 0, sizeof (gpinfo));
5521 gpinfo.g.info = info;
5522
5523 for (;;)
5524 {
5525 htab_t relocs = frvfdpic_relocs_info (info);
5526
5527 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5528
5529 if (relocs == frvfdpic_relocs_info (info))
5530 break;
5531 }
5532
5533 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5534 &gpinfo.g);
5535
5536 /* Allocate space to save the summary information, we're going to
5537 use it if we're doing relaxations. */
5538 frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5539
5540 if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5541 return FALSE;
5542
5543 if (elf_hash_table (info)->dynamic_sections_created)
5544 {
5545 if (frvfdpic_got_section (info)->size)
5546 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5547 return FALSE;
5548
5549 if (frvfdpic_pltrel_section (info)->size)
5550 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5551 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5552 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5553 return FALSE;
5554
5555 if (frvfdpic_gotrel_section (info)->size)
5556 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5557 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5558 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5559 sizeof (Elf32_External_Rel)))
5560 return FALSE;
5561 }
5562
5563 return TRUE;
5564 }
5565
5566 static bfd_boolean
5567 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5568 struct bfd_link_info *info)
5569 {
5570 if (!info->relocatable)
5571 {
5572 struct elf_link_hash_entry *h;
5573
5574 /* Force a PT_GNU_STACK segment to be created. */
5575 if (! elf_tdata (output_bfd)->stack_flags)
5576 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
5577
5578 /* Define __stacksize if it's not defined yet. */
5579 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5580 FALSE, FALSE, FALSE);
5581 if (! h || h->root.type != bfd_link_hash_defined
5582 || h->type != STT_OBJECT
5583 || !h->def_regular)
5584 {
5585 struct bfd_link_hash_entry *bh = NULL;
5586
5587 if (!(_bfd_generic_link_add_one_symbol
5588 (info, output_bfd, "__stacksize",
5589 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
5590 (const char *) NULL, FALSE,
5591 get_elf_backend_data (output_bfd)->collect, &bh)))
5592 return FALSE;
5593
5594 h = (struct elf_link_hash_entry *) bh;
5595 h->def_regular = 1;
5596 h->type = STT_OBJECT;
5597 /* This one must NOT be hidden. */
5598 }
5599 }
5600
5601 return TRUE;
5602 }
5603
5604 /* Check whether any of the relocations was optimized away, and
5605 subtract it from the relocation or fixup count. */
5606 static bfd_boolean
5607 _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5608 struct bfd_link_info *info,
5609
5610 bfd_boolean *changed)
5611 {
5612 Elf_Internal_Shdr *symtab_hdr;
5613 struct elf_link_hash_entry **sym_hashes;
5614 Elf_Internal_Rela *rel, *erel;
5615
5616 if ((sec->flags & SEC_RELOC) == 0
5617 || sec->reloc_count == 0)
5618 return TRUE;
5619
5620 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5621 sym_hashes = elf_sym_hashes (abfd);
5622
5623 rel = elf_section_data (sec)->relocs;
5624
5625 /* Now examine each relocation. */
5626 for (erel = rel + sec->reloc_count; rel < erel; rel++)
5627 {
5628 struct elf_link_hash_entry *h;
5629 unsigned long r_symndx;
5630 struct frvfdpic_relocs_info *picrel;
5631 struct _frvfdpic_dynamic_got_info *dinfo;
5632
5633 if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5634 && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5635 continue;
5636
5637 if (_bfd_elf_section_offset (sec->output_section->owner,
5638 info, sec, rel->r_offset)
5639 != (bfd_vma)-1)
5640 continue;
5641
5642 r_symndx = ELF32_R_SYM (rel->r_info);
5643 if (r_symndx < symtab_hdr->sh_info)
5644 h = NULL;
5645 else
5646 {
5647 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5648 while (h->root.type == bfd_link_hash_indirect
5649 || h->root.type == bfd_link_hash_warning)
5650 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5651 }
5652
5653 if (h != NULL)
5654 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5655 abfd, h,
5656 rel->r_addend, NO_INSERT);
5657 else
5658 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5659 abfd, r_symndx,
5660 rel->r_addend, NO_INSERT);
5661
5662 if (! picrel)
5663 return FALSE;
5664
5665 *changed = TRUE;
5666 dinfo = frvfdpic_dynamic_got_plt_info (info);
5667
5668 _frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
5669 if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5670 picrel->relocs32--;
5671 else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5672 picrel->relocsfd--;
5673 _frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
5674 }
5675
5676 return TRUE;
5677 }
5678
5679 static bfd_boolean
5680 frvfdpic_elf_discard_info (bfd *ibfd,
5681 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5682 struct bfd_link_info *info)
5683 {
5684 bfd_boolean changed = FALSE;
5685 asection *s;
5686 bfd *obfd = NULL;
5687
5688 /* Account for relaxation of .eh_frame section. */
5689 for (s = ibfd->sections; s; s = s->next)
5690 if (s->sec_info_type == ELF_INFO_TYPE_EH_FRAME)
5691 {
5692 if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5693 return FALSE;
5694 obfd = s->output_section->owner;
5695 }
5696
5697 if (changed)
5698 {
5699 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5700
5701 memset (&gpinfo, 0, sizeof (gpinfo));
5702 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5703 sizeof (gpinfo.g));
5704
5705 /* Clear GOT and PLT assignments. */
5706 htab_traverse (frvfdpic_relocs_info (info),
5707 _frvfdpic_reset_got_plt_entries,
5708 NULL);
5709
5710 if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5711 return FALSE;
5712 }
5713
5714 return TRUE;
5715 }
5716
5717 /* Look for opportunities to relax TLS relocations. We can assume
5718 we're linking the main executable or a static-tls library, since
5719 otherwise we wouldn't have got here. */
5720
5721 static int
5722 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5723 {
5724 struct frvfdpic_relocs_info *entry = *entryp;
5725 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5726
5727 _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5728
5729 return 1;
5730 }
5731
5732 static bfd_boolean
5733 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5734 struct bfd_link_info *info, bfd_boolean *again)
5735 {
5736 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5737
5738 if (info->relocatable)
5739 (*info->callbacks->einfo)
5740 (_("%P%F: --relax and -r may not be used together\n"));
5741
5742 /* If we return early, we didn't change anything. */
5743 *again = FALSE;
5744
5745 /* We'll do our thing when requested to relax the GOT section. */
5746 if (sec != frvfdpic_got_section (info))
5747 return TRUE;
5748
5749 /* We can only relax when linking the main executable or a library
5750 that can't be dlopened. */
5751 if (! info->executable && ! (info->flags & DF_STATIC_TLS))
5752 return TRUE;
5753
5754 /* If there isn't a TLS section for this binary, we can't do
5755 anything about its TLS relocations (it probably doesn't have
5756 any. */
5757 if (elf_hash_table (info)->tls_sec == NULL)
5758 return TRUE;
5759
5760 memset (&gpinfo, 0, sizeof (gpinfo));
5761 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5762
5763 /* Now look for opportunities to relax, adjusting the GOT usage
5764 as needed. */
5765 htab_traverse (frvfdpic_relocs_info (info),
5766 _frvfdpic_relax_got_plt_entries,
5767 &gpinfo.g);
5768
5769 /* If we changed anything, reset and re-assign GOT and PLT entries. */
5770 if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5771 &gpinfo.g, sizeof (gpinfo.g)) != 0)
5772 {
5773 /* Clear GOT and PLT assignments. */
5774 htab_traverse (frvfdpic_relocs_info (info),
5775 _frvfdpic_reset_got_plt_entries,
5776 NULL);
5777
5778 /* The owner of the TLS section is the output bfd. There should
5779 be a better way to get to it. */
5780 if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5781 &gpinfo))
5782 return FALSE;
5783
5784 /* Repeat until we don't make any further changes. We could fail to
5785 introduce changes in a round if, for example, the 12-bit range is
5786 full, but we later release some space by getting rid of TLS
5787 descriptors in it. We have to repeat the whole process because
5788 we might have changed the size of a section processed before this
5789 one. */
5790 *again = TRUE;
5791 }
5792
5793 return TRUE;
5794 }
5795
5796 static bfd_boolean
5797 elf32_frvfdpic_modify_program_headers (bfd *output_bfd,
5798 struct bfd_link_info *info)
5799 {
5800 struct elf_obj_tdata *tdata = elf_tdata (output_bfd);
5801 struct elf_segment_map *m;
5802 Elf_Internal_Phdr *p;
5803
5804 /* objcopy and strip preserve what's already there using
5805 elf32_frvfdpic_copy_private_bfd_data (). */
5806 if (! info)
5807 return TRUE;
5808
5809 for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++)
5810 if (m->p_type == PT_GNU_STACK)
5811 break;
5812
5813 if (m)
5814 {
5815 struct elf_link_hash_entry *h;
5816
5817 /* Obtain the pointer to the __stacksize symbol. */
5818 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5819 FALSE, FALSE, FALSE);
5820 if (h)
5821 {
5822 while (h->root.type == bfd_link_hash_indirect
5823 || h->root.type == bfd_link_hash_warning)
5824 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5825 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
5826 }
5827
5828 /* Set the header p_memsz from the symbol value. We
5829 intentionally ignore the symbol section. */
5830 if (h && h->root.type == bfd_link_hash_defined)
5831 p->p_memsz = h->root.u.def.value;
5832 else
5833 p->p_memsz = DEFAULT_STACK_SIZE;
5834
5835 p->p_align = 8;
5836 }
5837
5838 return TRUE;
5839 }
5840
5841 /* Fill in code and data in dynamic sections. */
5842
5843 static bfd_boolean
5844 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5845 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5846 {
5847 /* Nothing to be done for non-FDPIC. */
5848 return TRUE;
5849 }
5850
5851 static bfd_boolean
5852 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5853 struct bfd_link_info *info)
5854 {
5855 bfd *dynobj;
5856 asection *sdyn;
5857
5858 dynobj = elf_hash_table (info)->dynobj;
5859
5860 if (frvfdpic_dynamic_got_plt_info (info))
5861 {
5862 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5863 }
5864 if (frvfdpic_got_section (info))
5865 {
5866 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5867 == (frvfdpic_gotrel_section (info)->reloc_count
5868 * sizeof (Elf32_External_Rel)));
5869
5870 if (frvfdpic_gotfixup_section (info))
5871 {
5872 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5873 bfd_vma got_value = hgot->root.u.def.value
5874 + hgot->root.u.def.section->output_section->vma
5875 + hgot->root.u.def.section->output_offset;
5876 struct bfd_link_hash_entry *hend;
5877
5878 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5879 got_value, 0);
5880
5881 if (frvfdpic_gotfixup_section (info)->size
5882 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5883 {
5884 error:
5885 (*_bfd_error_handler)
5886 ("LINKER BUG: .rofixup section size mismatch");
5887 return FALSE;
5888 }
5889
5890 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5891 FALSE, FALSE, TRUE);
5892 if (hend
5893 && (hend->type == bfd_link_hash_defined
5894 || hend->type == bfd_link_hash_defweak)
5895 && hend->u.def.section->output_section != NULL)
5896 {
5897 bfd_vma value =
5898 frvfdpic_gotfixup_section (info)->output_section->vma
5899 + frvfdpic_gotfixup_section (info)->output_offset
5900 + frvfdpic_gotfixup_section (info)->size
5901 - hend->u.def.section->output_section->vma
5902 - hend->u.def.section->output_offset;
5903 BFD_ASSERT (hend->u.def.value == value);
5904 if (hend->u.def.value != value)
5905 goto error;
5906 }
5907 }
5908 }
5909 if (frvfdpic_pltrel_section (info))
5910 {
5911 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5912 == (frvfdpic_pltrel_section (info)->reloc_count
5913 * sizeof (Elf32_External_Rel)));
5914 }
5915
5916
5917 if (elf_hash_table (info)->dynamic_sections_created)
5918 {
5919 Elf32_External_Dyn * dyncon;
5920 Elf32_External_Dyn * dynconend;
5921
5922 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
5923
5924 BFD_ASSERT (sdyn != NULL);
5925
5926 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5927 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5928
5929 for (; dyncon < dynconend; dyncon++)
5930 {
5931 Elf_Internal_Dyn dyn;
5932
5933 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5934
5935 switch (dyn.d_tag)
5936 {
5937 default:
5938 break;
5939
5940 case DT_PLTGOT:
5941 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5942 + frvfdpic_got_section (info)->output_offset
5943 + frvfdpic_got_initial_offset (info);
5944 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5945 break;
5946
5947 case DT_JMPREL:
5948 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5949 ->output_section->vma
5950 + frvfdpic_pltrel_section (info)->output_offset;
5951 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5952 break;
5953
5954 case DT_PLTRELSZ:
5955 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5956 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5957 break;
5958 }
5959 }
5960 }
5961
5962 return TRUE;
5963 }
5964
5965 /* Adjust a symbol defined by a dynamic object and referenced by a
5966 regular object. */
5967
5968 static bfd_boolean
5969 elf32_frvfdpic_adjust_dynamic_symbol
5970 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5971 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5972 {
5973 bfd * dynobj;
5974
5975 dynobj = elf_hash_table (info)->dynobj;
5976
5977 /* Make sure we know what is going on here. */
5978 BFD_ASSERT (dynobj != NULL
5979 && (h->u.weakdef != NULL
5980 || (h->def_dynamic
5981 && h->ref_regular
5982 && !h->def_regular)));
5983
5984 /* If this is a weak symbol, and there is a real definition, the
5985 processor independent code will have arranged for us to see the
5986 real definition first, and we can just use the same value. */
5987 if (h->u.weakdef != NULL)
5988 {
5989 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5990 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5991 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5992 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5993 }
5994
5995 return TRUE;
5996 }
5997
5998 /* Perform any actions needed for dynamic symbols. */
5999
6000 static bfd_boolean
6001 elf32_frvfdpic_finish_dynamic_symbol
6002 (bfd *output_bfd ATTRIBUTE_UNUSED,
6003 struct bfd_link_info *info ATTRIBUTE_UNUSED,
6004 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
6005 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
6006 {
6007 return TRUE;
6008 }
6009
6010 /* Decide whether to attempt to turn absptr or lsda encodings in
6011 shared libraries into pcrel within the given input section. */
6012
6013 static bfd_boolean
6014 frvfdpic_elf_use_relative_eh_frame
6015 (bfd *input_bfd ATTRIBUTE_UNUSED,
6016 struct bfd_link_info *info ATTRIBUTE_UNUSED,
6017 asection *eh_frame_section ATTRIBUTE_UNUSED)
6018 {
6019 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
6020 return FALSE;
6021 }
6022
6023 /* Adjust the contents of an eh_frame_hdr section before they're output. */
6024
6025 static bfd_byte
6026 frvfdpic_elf_encode_eh_address (bfd *abfd,
6027 struct bfd_link_info *info,
6028 asection *osec, bfd_vma offset,
6029 asection *loc_sec, bfd_vma loc_offset,
6030 bfd_vma *encoded)
6031 {
6032 struct elf_link_hash_entry *h;
6033
6034 h = elf_hash_table (info)->hgot;
6035 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
6036
6037 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
6038 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
6039 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
6040 loc_sec, loc_offset, encoded);
6041
6042 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
6043 == (_frvfdpic_osec_to_segment
6044 (abfd, h->root.u.def.section->output_section)));
6045
6046 *encoded = osec->vma + offset
6047 - (h->root.u.def.value
6048 + h->root.u.def.section->output_section->vma
6049 + h->root.u.def.section->output_offset);
6050
6051 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
6052 }
6053
6054 /* Look through the relocs for a section during the first phase.
6055
6056 Besides handling virtual table relocs for gc, we have to deal with
6057 all sorts of PIC-related relocations. We describe below the
6058 general plan on how to handle such relocations, even though we only
6059 collect information at this point, storing them in hash tables for
6060 perusal of later passes.
6061
6062 32 relocations are propagated to the linker output when creating
6063 position-independent output. LO16 and HI16 relocations are not
6064 supposed to be encountered in this case.
6065
6066 LABEL16 should always be resolvable by the linker, since it's only
6067 used by branches.
6068
6069 LABEL24, on the other hand, is used by calls. If it turns out that
6070 the target of a call is a dynamic symbol, a PLT entry must be
6071 created for it, which triggers the creation of a private function
6072 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
6073
6074 GPREL relocations require the referenced symbol to be in the same
6075 segment as _gp, but this can only be checked later.
6076
6077 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
6078 exist. LABEL24 might as well, since it may require a PLT entry,
6079 that will require a got.
6080
6081 Non-FUNCDESC GOT relocations require a GOT entry to be created
6082 regardless of whether the symbol is dynamic. However, since a
6083 global symbol that turns out to not be exported may have the same
6084 address of a non-dynamic symbol, we don't assign GOT entries at
6085 this point, such that we can share them in this case. A relocation
6086 for the GOT entry always has to be created, be it to offset a
6087 private symbol by the section load address, be it to get the symbol
6088 resolved dynamically.
6089
6090 FUNCDESC GOT relocations require a GOT entry to be created, and
6091 handled as if a FUNCDESC relocation was applied to the GOT entry in
6092 an object file.
6093
6094 FUNCDESC relocations referencing a symbol that turns out to NOT be
6095 dynamic cause a private function descriptor to be created. The
6096 FUNCDESC relocation then decays to a 32 relocation that points at
6097 the private descriptor. If the symbol is dynamic, the FUNCDESC
6098 relocation is propagated to the linker output, such that the
6099 dynamic linker creates the canonical descriptor, pointing to the
6100 dynamically-resolved definition of the function.
6101
6102 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
6103 symbols that are assigned to the same segment as the GOT, but we
6104 can only check this later, after we know the complete set of
6105 symbols defined and/or exported.
6106
6107 FUNCDESC GOTOFF relocations require a function descriptor to be
6108 created and, unless lazy binding is disabled or the symbol is not
6109 dynamic, a lazy PLT entry. Since we can't tell at this point
6110 whether a symbol is going to be dynamic, we have to decide later
6111 whether to create a lazy PLT entry or bind the descriptor directly
6112 to the private function.
6113
6114 FUNCDESC_VALUE relocations are not supposed to be present in object
6115 files, but they may very well be simply propagated to the linker
6116 output, since they have no side effect.
6117
6118
6119 A function descriptor always requires a FUNCDESC_VALUE relocation.
6120 Whether it's in .plt.rel or not depends on whether lazy binding is
6121 enabled and on whether the referenced symbol is dynamic.
6122
6123 The existence of a lazy PLT requires the resolverStub lazy PLT
6124 entry to be present.
6125
6126
6127 As for assignment of GOT, PLT and lazy PLT entries, and private
6128 descriptors, we might do them all sequentially, but we can do
6129 better than that. For example, we can place GOT entries and
6130 private function descriptors referenced using 12-bit operands
6131 closer to the PIC register value, such that these relocations don't
6132 overflow. Those that are only referenced with LO16 relocations
6133 could come next, but we may as well place PLT-required function
6134 descriptors in the 12-bit range to make them shorter. Symbols
6135 referenced with LO16/HI16 may come next, but we may place
6136 additional function descriptors in the 16-bit range if we can
6137 reliably tell that we've already placed entries that are ever
6138 referenced with only LO16. PLT entries are therefore generated as
6139 small as possible, while not introducing relocation overflows in
6140 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
6141 generated before or after PLT entries, but not intermingled with
6142 them, such that we can have more lazy PLT entries in range for a
6143 branch to the resolverStub. The resolverStub should be emitted at
6144 the most distant location from the first lazy PLT entry such that
6145 it's still in range for a branch, or closer, if there isn't a need
6146 for so many lazy PLT entries. Additional lazy PLT entries may be
6147 emitted after the resolverStub, as long as branches are still in
6148 range. If the branch goes out of range, longer lazy PLT entries
6149 are emitted.
6150
6151 We could further optimize PLT and lazy PLT entries by giving them
6152 priority in assignment to closer-to-gr17 locations depending on the
6153 number of occurrences of references to them (assuming a function
6154 that's called more often is more important for performance, so its
6155 PLT entry should be faster), or taking hints from the compiler.
6156 Given infinite time and money... :-) */
6157
6158 static bfd_boolean
6159 elf32_frv_check_relocs (abfd, info, sec, relocs)
6160 bfd *abfd;
6161 struct bfd_link_info *info;
6162 asection *sec;
6163 const Elf_Internal_Rela *relocs;
6164 {
6165 Elf_Internal_Shdr *symtab_hdr;
6166 struct elf_link_hash_entry **sym_hashes;
6167 const Elf_Internal_Rela *rel;
6168 const Elf_Internal_Rela *rel_end;
6169 bfd *dynobj;
6170 struct frvfdpic_relocs_info *picrel;
6171
6172 if (info->relocatable)
6173 return TRUE;
6174
6175 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6176 sym_hashes = elf_sym_hashes (abfd);
6177
6178 dynobj = elf_hash_table (info)->dynobj;
6179 rel_end = relocs + sec->reloc_count;
6180 for (rel = relocs; rel < rel_end; rel++)
6181 {
6182 struct elf_link_hash_entry *h;
6183 unsigned long r_symndx;
6184
6185 r_symndx = ELF32_R_SYM (rel->r_info);
6186 if (r_symndx < symtab_hdr->sh_info)
6187 h = NULL;
6188 else
6189 {
6190 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6191 while (h->root.type == bfd_link_hash_indirect
6192 || h->root.type == bfd_link_hash_warning)
6193 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6194 }
6195
6196 switch (ELF32_R_TYPE (rel->r_info))
6197 {
6198 case R_FRV_GETTLSOFF:
6199 case R_FRV_TLSDESC_VALUE:
6200 case R_FRV_GOTTLSDESC12:
6201 case R_FRV_GOTTLSDESCHI:
6202 case R_FRV_GOTTLSDESCLO:
6203 case R_FRV_GOTTLSOFF12:
6204 case R_FRV_GOTTLSOFFHI:
6205 case R_FRV_GOTTLSOFFLO:
6206 case R_FRV_TLSOFF:
6207 case R_FRV_GOT12:
6208 case R_FRV_GOTHI:
6209 case R_FRV_GOTLO:
6210 case R_FRV_FUNCDESC_GOT12:
6211 case R_FRV_FUNCDESC_GOTHI:
6212 case R_FRV_FUNCDESC_GOTLO:
6213 case R_FRV_GOTOFF12:
6214 case R_FRV_GOTOFFHI:
6215 case R_FRV_GOTOFFLO:
6216 case R_FRV_FUNCDESC_GOTOFF12:
6217 case R_FRV_FUNCDESC_GOTOFFHI:
6218 case R_FRV_FUNCDESC_GOTOFFLO:
6219 case R_FRV_FUNCDESC:
6220 case R_FRV_FUNCDESC_VALUE:
6221 case R_FRV_TLSMOFF12:
6222 case R_FRV_TLSMOFFHI:
6223 case R_FRV_TLSMOFFLO:
6224 case R_FRV_TLSMOFF:
6225 if (! IS_FDPIC (abfd))
6226 goto bad_reloc;
6227 /* Fall through. */
6228 case R_FRV_GPREL12:
6229 case R_FRV_GPRELU12:
6230 case R_FRV_GPRELHI:
6231 case R_FRV_GPRELLO:
6232 case R_FRV_LABEL24:
6233 case R_FRV_32:
6234 if (! dynobj)
6235 {
6236 elf_hash_table (info)->dynobj = dynobj = abfd;
6237 if (! _frv_create_got_section (abfd, info))
6238 return FALSE;
6239 }
6240 if (! IS_FDPIC (abfd))
6241 {
6242 picrel = NULL;
6243 break;
6244 }
6245 if (h != NULL)
6246 {
6247 if (h->dynindx == -1)
6248 switch (ELF_ST_VISIBILITY (h->other))
6249 {
6250 case STV_INTERNAL:
6251 case STV_HIDDEN:
6252 break;
6253 default:
6254 bfd_elf_link_record_dynamic_symbol (info, h);
6255 break;
6256 }
6257 picrel
6258 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6259 abfd, h,
6260 rel->r_addend, INSERT);
6261 }
6262 else
6263 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6264 (info), abfd, r_symndx,
6265 rel->r_addend, INSERT);
6266 if (! picrel)
6267 return FALSE;
6268 break;
6269
6270 default:
6271 picrel = NULL;
6272 break;
6273 }
6274
6275 switch (ELF32_R_TYPE (rel->r_info))
6276 {
6277 case R_FRV_LABEL24:
6278 if (IS_FDPIC (abfd))
6279 picrel->call = 1;
6280 break;
6281
6282 case R_FRV_FUNCDESC_VALUE:
6283 picrel->relocsfdv++;
6284 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6285 picrel->relocs32--;
6286 /* Fall through. */
6287
6288 case R_FRV_32:
6289 if (! IS_FDPIC (abfd))
6290 break;
6291
6292 picrel->sym = 1;
6293 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6294 picrel->relocs32++;
6295 break;
6296
6297 case R_FRV_GOT12:
6298 picrel->got12 = 1;
6299 break;
6300
6301 case R_FRV_GOTHI:
6302 case R_FRV_GOTLO:
6303 picrel->gothilo = 1;
6304 break;
6305
6306 case R_FRV_FUNCDESC_GOT12:
6307 picrel->fdgot12 = 1;
6308 break;
6309
6310 case R_FRV_FUNCDESC_GOTHI:
6311 case R_FRV_FUNCDESC_GOTLO:
6312 picrel->fdgothilo = 1;
6313 break;
6314
6315 case R_FRV_GOTOFF12:
6316 case R_FRV_GOTOFFHI:
6317 case R_FRV_GOTOFFLO:
6318 picrel->gotoff = 1;
6319 break;
6320
6321 case R_FRV_FUNCDESC_GOTOFF12:
6322 picrel->fdgoff12 = 1;
6323 break;
6324
6325 case R_FRV_FUNCDESC_GOTOFFHI:
6326 case R_FRV_FUNCDESC_GOTOFFLO:
6327 picrel->fdgoffhilo = 1;
6328 break;
6329
6330 case R_FRV_FUNCDESC:
6331 picrel->fd = 1;
6332 picrel->relocsfd++;
6333 break;
6334
6335 case R_FRV_GETTLSOFF:
6336 picrel->tlsplt = 1;
6337 break;
6338
6339 case R_FRV_TLSDESC_VALUE:
6340 picrel->relocstlsd++;
6341 goto bad_reloc;
6342
6343 case R_FRV_GOTTLSDESC12:
6344 picrel->tlsdesc12 = 1;
6345 break;
6346
6347 case R_FRV_GOTTLSDESCHI:
6348 case R_FRV_GOTTLSDESCLO:
6349 picrel->tlsdeschilo = 1;
6350 break;
6351
6352 case R_FRV_TLSMOFF12:
6353 case R_FRV_TLSMOFFHI:
6354 case R_FRV_TLSMOFFLO:
6355 case R_FRV_TLSMOFF:
6356 break;
6357
6358 case R_FRV_GOTTLSOFF12:
6359 picrel->tlsoff12 = 1;
6360 info->flags |= DF_STATIC_TLS;
6361 break;
6362
6363 case R_FRV_GOTTLSOFFHI:
6364 case R_FRV_GOTTLSOFFLO:
6365 picrel->tlsoffhilo = 1;
6366 info->flags |= DF_STATIC_TLS;
6367 break;
6368
6369 case R_FRV_TLSOFF:
6370 picrel->relocstlsoff++;
6371 info->flags |= DF_STATIC_TLS;
6372 goto bad_reloc;
6373
6374 /* This relocation describes the C++ object vtable hierarchy.
6375 Reconstruct it for later use during GC. */
6376 case R_FRV_GNU_VTINHERIT:
6377 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6378 return FALSE;
6379 break;
6380
6381 /* This relocation describes which C++ vtable entries are actually
6382 used. Record for later use during GC. */
6383 case R_FRV_GNU_VTENTRY:
6384 BFD_ASSERT (h != NULL);
6385 if (h != NULL
6386 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6387 return FALSE;
6388 break;
6389
6390 case R_FRV_LABEL16:
6391 case R_FRV_LO16:
6392 case R_FRV_HI16:
6393 case R_FRV_GPREL12:
6394 case R_FRV_GPRELU12:
6395 case R_FRV_GPREL32:
6396 case R_FRV_GPRELHI:
6397 case R_FRV_GPRELLO:
6398 case R_FRV_TLSDESC_RELAX:
6399 case R_FRV_GETTLSOFF_RELAX:
6400 case R_FRV_TLSOFF_RELAX:
6401 break;
6402
6403 default:
6404 bad_reloc:
6405 (*_bfd_error_handler)
6406 (_("%B: unsupported relocation type %i"),
6407 abfd, ELF32_R_TYPE (rel->r_info));
6408 return FALSE;
6409 }
6410 }
6411
6412 return TRUE;
6413 }
6414
6415 \f
6416 /* Return the machine subcode from the ELF e_flags header. */
6417
6418 static int
6419 elf32_frv_machine (abfd)
6420 bfd *abfd;
6421 {
6422 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6423 {
6424 default: break;
6425 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6426 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6427 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6428 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6429 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6430 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6431 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6432 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6433 }
6434
6435 return bfd_mach_frv;
6436 }
6437
6438 /* Set the right machine number for a FRV ELF file. */
6439
6440 static bfd_boolean
6441 elf32_frv_object_p (abfd)
6442 bfd *abfd;
6443 {
6444 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6445 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6446 == (IS_FDPIC (abfd)));
6447 }
6448 \f
6449 /* Function to set the ELF flag bits. */
6450
6451 static bfd_boolean
6452 frv_elf_set_private_flags (abfd, flags)
6453 bfd *abfd;
6454 flagword flags;
6455 {
6456 elf_elfheader (abfd)->e_flags = flags;
6457 elf_flags_init (abfd) = TRUE;
6458 return TRUE;
6459 }
6460
6461 /* Copy backend specific data from one object module to another. */
6462
6463 static bfd_boolean
6464 frv_elf_copy_private_bfd_data (ibfd, obfd)
6465 bfd *ibfd;
6466 bfd *obfd;
6467 {
6468 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6469 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6470 return TRUE;
6471
6472 BFD_ASSERT (!elf_flags_init (obfd)
6473 || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
6474
6475 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
6476 elf_flags_init (obfd) = TRUE;
6477
6478 /* Copy object attributes. */
6479 _bfd_elf_copy_obj_attributes (ibfd, obfd);
6480
6481 return TRUE;
6482 }
6483
6484 /* Return true if the architecture described by elf header flag
6485 EXTENSION is an extension of the architecture described by BASE. */
6486
6487 static bfd_boolean
6488 frv_elf_arch_extension_p (flagword base, flagword extension)
6489 {
6490 if (base == extension)
6491 return TRUE;
6492
6493 /* CPU_GENERIC code can be merged with code for a specific
6494 architecture, in which case the result is marked as being
6495 for the specific architecture. Everything is therefore
6496 an extension of CPU_GENERIC. */
6497 if (base == EF_FRV_CPU_GENERIC)
6498 return TRUE;
6499
6500 if (extension == EF_FRV_CPU_FR450)
6501 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6502 return TRUE;
6503
6504 if (extension == EF_FRV_CPU_FR405)
6505 if (base == EF_FRV_CPU_FR400)
6506 return TRUE;
6507
6508 return FALSE;
6509 }
6510
6511 static bfd_boolean
6512 elf32_frvfdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
6513 {
6514 unsigned i;
6515
6516 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6517 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6518 return TRUE;
6519
6520 if (! frv_elf_copy_private_bfd_data (ibfd, obfd))
6521 return FALSE;
6522
6523 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
6524 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
6525 return TRUE;
6526
6527 /* Copy the stack size. */
6528 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
6529 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
6530 {
6531 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
6532
6533 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
6534 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
6535 {
6536 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
6537
6538 /* Rewrite the phdrs, since we're only called after they
6539 were first written. */
6540 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
6541 ->s->sizeof_ehdr, SEEK_SET) != 0
6542 || get_elf_backend_data (obfd)->s
6543 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
6544 elf_elfheader (obfd)->e_phnum) != 0)
6545 return FALSE;
6546 break;
6547 }
6548
6549 break;
6550 }
6551
6552 return TRUE;
6553 }
6554
6555 /* Merge backend specific data from an object file to the output
6556 object file when linking. */
6557
6558 static bfd_boolean
6559 frv_elf_merge_private_bfd_data (ibfd, obfd)
6560 bfd *ibfd;
6561 bfd *obfd;
6562 {
6563 flagword old_flags, old_partial;
6564 flagword new_flags, new_partial;
6565 bfd_boolean error = FALSE;
6566 char new_opt[80];
6567 char old_opt[80];
6568
6569 new_opt[0] = old_opt[0] = '\0';
6570 new_flags = elf_elfheader (ibfd)->e_flags;
6571 old_flags = elf_elfheader (obfd)->e_flags;
6572
6573 if (new_flags & EF_FRV_FDPIC)
6574 new_flags &= ~EF_FRV_PIC;
6575
6576 #ifdef DEBUG
6577 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
6578 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6579 bfd_get_filename (ibfd));
6580 #endif
6581
6582 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6583 {
6584 elf_flags_init (obfd) = TRUE;
6585 old_flags = new_flags;
6586 }
6587
6588 else if (new_flags == old_flags) /* Compatible flags are ok. */
6589 ;
6590
6591 else /* Possibly incompatible flags. */
6592 {
6593 /* Warn if different # of gprs are used. Note, 0 means nothing is
6594 said about the size of gprs. */
6595 new_partial = (new_flags & EF_FRV_GPR_MASK);
6596 old_partial = (old_flags & EF_FRV_GPR_MASK);
6597 if (new_partial == old_partial)
6598 ;
6599
6600 else if (new_partial == 0)
6601 ;
6602
6603 else if (old_partial == 0)
6604 old_flags |= new_partial;
6605
6606 else
6607 {
6608 switch (new_partial)
6609 {
6610 default: strcat (new_opt, " -mgpr-??"); break;
6611 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6612 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6613 }
6614
6615 switch (old_partial)
6616 {
6617 default: strcat (old_opt, " -mgpr-??"); break;
6618 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6619 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6620 }
6621 }
6622
6623 /* Warn if different # of fprs are used. Note, 0 means nothing is
6624 said about the size of fprs. */
6625 new_partial = (new_flags & EF_FRV_FPR_MASK);
6626 old_partial = (old_flags & EF_FRV_FPR_MASK);
6627 if (new_partial == old_partial)
6628 ;
6629
6630 else if (new_partial == 0)
6631 ;
6632
6633 else if (old_partial == 0)
6634 old_flags |= new_partial;
6635
6636 else
6637 {
6638 switch (new_partial)
6639 {
6640 default: strcat (new_opt, " -mfpr-?"); break;
6641 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6642 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6643 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6644 }
6645
6646 switch (old_partial)
6647 {
6648 default: strcat (old_opt, " -mfpr-?"); break;
6649 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6650 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6651 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6652 }
6653 }
6654
6655 /* Warn if different dword support was used. Note, 0 means nothing is
6656 said about the dword support. */
6657 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6658 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6659 if (new_partial == old_partial)
6660 ;
6661
6662 else if (new_partial == 0)
6663 ;
6664
6665 else if (old_partial == 0)
6666 old_flags |= new_partial;
6667
6668 else
6669 {
6670 switch (new_partial)
6671 {
6672 default: strcat (new_opt, " -mdword-?"); break;
6673 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6674 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6675 }
6676
6677 switch (old_partial)
6678 {
6679 default: strcat (old_opt, " -mdword-?"); break;
6680 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6681 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6682 }
6683 }
6684
6685 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6686 feature is used. */
6687 old_flags |= new_flags & (EF_FRV_DOUBLE
6688 | EF_FRV_MEDIA
6689 | EF_FRV_MULADD
6690 | EF_FRV_NON_PIC_RELOCS);
6691
6692 /* If any module was compiled without -G0, clear the G0 bit. */
6693 old_flags = ((old_flags & ~ EF_FRV_G0)
6694 | (old_flags & new_flags & EF_FRV_G0));
6695
6696 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6697 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6698 | (old_flags & new_flags & EF_FRV_NOPACK));
6699
6700 /* We don't have to do anything if the pic flags are the same, or the new
6701 module(s) were compiled with -mlibrary-pic. */
6702 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6703 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6704 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6705 ;
6706
6707 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6708 flags if any from the new module. */
6709 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6710 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6711
6712 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6713 else if (new_partial != 0 && old_partial != 0)
6714 old_flags |= new_partial;
6715
6716 /* One module was compiled for pic and the other was not, see if we have
6717 had any relocations that are not pic-safe. */
6718 else
6719 {
6720 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6721 old_flags |= new_partial;
6722 else
6723 {
6724 old_flags &= ~ EF_FRV_PIC_FLAGS;
6725 #ifndef FRV_NO_PIC_ERROR
6726 error = TRUE;
6727 (*_bfd_error_handler)
6728 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
6729 bfd_get_filename (ibfd),
6730 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6731 #endif
6732 }
6733 }
6734
6735 /* Warn if different cpu is used (allow a specific cpu to override
6736 the generic cpu). */
6737 new_partial = (new_flags & EF_FRV_CPU_MASK);
6738 old_partial = (old_flags & EF_FRV_CPU_MASK);
6739 if (frv_elf_arch_extension_p (new_partial, old_partial))
6740 ;
6741
6742 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6743 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6744
6745 else
6746 {
6747 switch (new_partial)
6748 {
6749 default: strcat (new_opt, " -mcpu=?"); break;
6750 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6751 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6752 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6753 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6754 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6755 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6756 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6757 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6758 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6759 }
6760
6761 switch (old_partial)
6762 {
6763 default: strcat (old_opt, " -mcpu=?"); break;
6764 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6765 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6766 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6767 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6768 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6769 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6770 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6771 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6772 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6773 }
6774 }
6775
6776 /* Print out any mismatches from above. */
6777 if (new_opt[0])
6778 {
6779 error = TRUE;
6780 (*_bfd_error_handler)
6781 (_("%s: compiled with %s and linked with modules compiled with %s"),
6782 bfd_get_filename (ibfd), new_opt, old_opt);
6783 }
6784
6785 /* Warn about any other mismatches */
6786 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6787 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6788 if (new_partial != old_partial)
6789 {
6790 old_flags |= new_partial;
6791 error = TRUE;
6792 (*_bfd_error_handler)
6793 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
6794 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
6795 }
6796 }
6797
6798 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6799 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6800 old_flags |= EF_FRV_NOPACK;
6801
6802 /* Update the old flags now with changes made above. */
6803 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6804 elf_elfheader (obfd)->e_flags = old_flags;
6805 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6806 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6807
6808 if (((new_flags & EF_FRV_FDPIC) == 0)
6809 != (! IS_FDPIC (ibfd)))
6810 {
6811 error = TRUE;
6812 if (IS_FDPIC (obfd))
6813 (*_bfd_error_handler)
6814 (_("%s: cannot link non-fdpic object file into fdpic executable"),
6815 bfd_get_filename (ibfd));
6816 else
6817 (*_bfd_error_handler)
6818 (_("%s: cannot link fdpic object file into non-fdpic executable"),
6819 bfd_get_filename (ibfd));
6820 }
6821
6822 if (error)
6823 bfd_set_error (bfd_error_bad_value);
6824
6825 return !error;
6826 }
6827
6828 \f
6829 bfd_boolean
6830 frv_elf_print_private_bfd_data (abfd, ptr)
6831 bfd *abfd;
6832 PTR ptr;
6833 {
6834 FILE *file = (FILE *) ptr;
6835 flagword flags;
6836
6837 BFD_ASSERT (abfd != NULL && ptr != NULL);
6838
6839 /* Print normal ELF private data. */
6840 _bfd_elf_print_private_bfd_data (abfd, ptr);
6841
6842 flags = elf_elfheader (abfd)->e_flags;
6843 fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
6844
6845 switch (flags & EF_FRV_CPU_MASK)
6846 {
6847 default: break;
6848 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6849 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6850 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6851 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6852 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6853 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6854 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6855 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6856 }
6857
6858 switch (flags & EF_FRV_GPR_MASK)
6859 {
6860 default: break;
6861 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6862 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6863 }
6864
6865 switch (flags & EF_FRV_FPR_MASK)
6866 {
6867 default: break;
6868 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6869 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6870 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6871 }
6872
6873 switch (flags & EF_FRV_DWORD_MASK)
6874 {
6875 default: break;
6876 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6877 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6878 }
6879
6880 if (flags & EF_FRV_DOUBLE)
6881 fprintf (file, " -mdouble");
6882
6883 if (flags & EF_FRV_MEDIA)
6884 fprintf (file, " -mmedia");
6885
6886 if (flags & EF_FRV_MULADD)
6887 fprintf (file, " -mmuladd");
6888
6889 if (flags & EF_FRV_PIC)
6890 fprintf (file, " -fpic");
6891
6892 if (flags & EF_FRV_BIGPIC)
6893 fprintf (file, " -fPIC");
6894
6895 if (flags & EF_FRV_LIBPIC)
6896 fprintf (file, " -mlibrary-pic");
6897
6898 if (flags & EF_FRV_FDPIC)
6899 fprintf (file, " -mfdpic");
6900
6901 if (flags & EF_FRV_NON_PIC_RELOCS)
6902 fprintf (file, " non-pic relocations");
6903
6904 if (flags & EF_FRV_G0)
6905 fprintf (file, " -G0");
6906
6907 fputc ('\n', file);
6908 return TRUE;
6909 }
6910
6911 \f
6912 /* Support for core dump NOTE sections. */
6913
6914 static bfd_boolean
6915 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6916 {
6917 int offset;
6918 unsigned int raw_size;
6919
6920 switch (note->descsz)
6921 {
6922 default:
6923 return FALSE;
6924
6925 /* The Linux/FRV elf_prstatus struct is 268 bytes long. The other
6926 hardcoded offsets and sizes listed below (and contained within
6927 this lexical block) refer to fields in the target's elf_prstatus
6928 struct. */
6929 case 268:
6930 /* `pr_cursig' is at offset 12. */
6931 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
6932
6933 /* `pr_pid' is at offset 24. */
6934 elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
6935
6936 /* `pr_reg' is at offset 72. */
6937 offset = 72;
6938
6939 /* Most grok_prstatus implementations set `raw_size' to the size
6940 of the pr_reg field. For Linux/FRV, we set `raw_size' to be
6941 the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6942 and `pr_interp_fdpic_loadmap', both of which (by design)
6943 immediately follow `pr_reg'. This will allow these fields to
6944 be viewed by GDB as registers.
6945
6946 `pr_reg' is 184 bytes long. `pr_exec_fdpic_loadmap' and
6947 `pr_interp_fdpic_loadmap' are 4 bytes each. */
6948 raw_size = 184 + 4 + 4;
6949
6950 break;
6951 }
6952
6953 /* Make a ".reg/999" section. */
6954 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6955 note->descpos + offset);
6956 }
6957
6958 static bfd_boolean
6959 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6960 {
6961 switch (note->descsz)
6962 {
6963 default:
6964 return FALSE;
6965
6966 /* The Linux/FRV elf_prpsinfo struct is 124 bytes long. */
6967 case 124:
6968
6969 /* `pr_fname' is found at offset 28 and is 16 bytes long. */
6970 elf_tdata (abfd)->core_program
6971 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6972
6973 /* `pr_psargs' is found at offset 44 and is 80 bytes long. */
6974 elf_tdata (abfd)->core_command
6975 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6976 }
6977
6978 /* Note that for some reason, a spurious space is tacked
6979 onto the end of the args in some (at least one anyway)
6980 implementations, so strip it off if it exists. */
6981
6982 {
6983 char *command = elf_tdata (abfd)->core_command;
6984 int n = strlen (command);
6985
6986 if (0 < n && command[n - 1] == ' ')
6987 command[n - 1] = '\0';
6988 }
6989
6990 return TRUE;
6991 }
6992 #define ELF_ARCH bfd_arch_frv
6993 #define ELF_TARGET_ID FRV_ELF_DATA
6994 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
6995 #define ELF_MAXPAGESIZE 0x1000
6996
6997 #define TARGET_BIG_SYM bfd_elf32_frv_vec
6998 #define TARGET_BIG_NAME "elf32-frv"
6999
7000 #define elf_info_to_howto frv_info_to_howto_rela
7001 #define elf_backend_relocate_section elf32_frv_relocate_section
7002 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
7003 #define elf_backend_check_relocs elf32_frv_check_relocs
7004 #define elf_backend_object_p elf32_frv_object_p
7005 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
7006
7007 #define elf_backend_can_gc_sections 1
7008 #define elf_backend_rela_normal 1
7009
7010 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
7011 #define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
7012 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
7013 #define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data
7014 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
7015 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
7016
7017 #define elf_backend_want_got_sym 1
7018 #define elf_backend_got_header_size 0
7019 #define elf_backend_want_got_plt 0
7020 #define elf_backend_plt_readonly 1
7021 #define elf_backend_want_plt_sym 0
7022 #define elf_backend_plt_header_size 0
7023
7024 #define elf_backend_finish_dynamic_sections \
7025 elf32_frv_finish_dynamic_sections
7026
7027 #define elf_backend_grok_prstatus elf32_frv_grok_prstatus
7028 #define elf_backend_grok_psinfo elf32_frv_grok_psinfo
7029
7030 #include "elf32-target.h"
7031
7032 #undef ELF_MAXPAGESIZE
7033 #define ELF_MAXPAGESIZE 0x4000
7034
7035 #undef TARGET_BIG_SYM
7036 #define TARGET_BIG_SYM bfd_elf32_frvfdpic_vec
7037 #undef TARGET_BIG_NAME
7038 #define TARGET_BIG_NAME "elf32-frvfdpic"
7039 #undef elf32_bed
7040 #define elf32_bed elf32_frvfdpic_bed
7041
7042 #undef elf_info_to_howto_rel
7043 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
7044
7045 #undef bfd_elf32_bfd_link_hash_table_create
7046 #define bfd_elf32_bfd_link_hash_table_create \
7047 frvfdpic_elf_link_hash_table_create
7048 #undef elf_backend_always_size_sections
7049 #define elf_backend_always_size_sections \
7050 elf32_frvfdpic_always_size_sections
7051 #undef elf_backend_modify_program_headers
7052 #define elf_backend_modify_program_headers \
7053 elf32_frvfdpic_modify_program_headers
7054 #undef bfd_elf32_bfd_copy_private_bfd_data
7055 #define bfd_elf32_bfd_copy_private_bfd_data \
7056 elf32_frvfdpic_copy_private_bfd_data
7057
7058 #undef elf_backend_create_dynamic_sections
7059 #define elf_backend_create_dynamic_sections \
7060 elf32_frvfdpic_create_dynamic_sections
7061 #undef elf_backend_adjust_dynamic_symbol
7062 #define elf_backend_adjust_dynamic_symbol \
7063 elf32_frvfdpic_adjust_dynamic_symbol
7064 #undef elf_backend_size_dynamic_sections
7065 #define elf_backend_size_dynamic_sections \
7066 elf32_frvfdpic_size_dynamic_sections
7067 #undef bfd_elf32_bfd_relax_section
7068 #define bfd_elf32_bfd_relax_section \
7069 elf32_frvfdpic_relax_section
7070 #undef elf_backend_finish_dynamic_symbol
7071 #define elf_backend_finish_dynamic_symbol \
7072 elf32_frvfdpic_finish_dynamic_symbol
7073 #undef elf_backend_finish_dynamic_sections
7074 #define elf_backend_finish_dynamic_sections \
7075 elf32_frvfdpic_finish_dynamic_sections
7076
7077 #undef elf_backend_discard_info
7078 #define elf_backend_discard_info \
7079 frvfdpic_elf_discard_info
7080 #undef elf_backend_can_make_relative_eh_frame
7081 #define elf_backend_can_make_relative_eh_frame \
7082 frvfdpic_elf_use_relative_eh_frame
7083 #undef elf_backend_can_make_lsda_relative_eh_frame
7084 #define elf_backend_can_make_lsda_relative_eh_frame \
7085 frvfdpic_elf_use_relative_eh_frame
7086 #undef elf_backend_encode_eh_address
7087 #define elf_backend_encode_eh_address \
7088 frvfdpic_elf_encode_eh_address
7089
7090 #undef elf_backend_may_use_rel_p
7091 #define elf_backend_may_use_rel_p 1
7092 #undef elf_backend_may_use_rela_p
7093 #define elf_backend_may_use_rela_p 1
7094 /* We use REL for dynamic relocations only. */
7095 #undef elf_backend_default_use_rela_p
7096 #define elf_backend_default_use_rela_p 1
7097
7098 #undef elf_backend_omit_section_dynsym
7099 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
7100
7101 #include "elf32-target.h"
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