1 /* FRV-specific support for 32-bit ELF.
2 Copyright 2002, 2003, 2004, 2005, 2006, 2007
3 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
27 #include "elf/dwarf2.h"
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
67 static bfd_boolean elf32_frv_object_p
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);
82 static reloc_howto_type elf32_frv_howto_table [] =
84 /* This reloc does nothing. */
85 HOWTO (R_FRV_NONE, /* type */
87 2, /* size (0 = byte, 1 = short, 2 = long) */
89 FALSE, /* pc_relative */
91 complain_overflow_bitfield, /* complain_on_overflow */
92 bfd_elf_generic_reloc, /* special_function */
93 "R_FRV_NONE", /* name */
94 FALSE, /* partial_inplace */
97 FALSE), /* pcrel_offset */
99 /* A 32 bit absolute relocation. */
100 HOWTO (R_FRV_32, /* type */
102 2, /* size (0 = byte, 1 = short, 2 = long) */
104 FALSE, /* pc_relative */
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 */
114 /* A 16 bit pc-relative relocation. */
115 HOWTO (R_FRV_LABEL16, /* type */
117 2, /* size (0 = byte, 1 = short, 2 = long) */
119 TRUE, /* pc_relative */
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 */
129 /* A 24-bit pc-relative relocation. */
130 HOWTO (R_FRV_LABEL24, /* type */
132 2, /* size (0 = byte, 1 = short, 2 = long) */
134 TRUE, /* pc_relative */
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 */
144 HOWTO (R_FRV_LO16, /* type */
146 2, /* size (0 = byte, 1 = short, 2 = long) */
148 FALSE, /* pc_relative */
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 */
158 HOWTO (R_FRV_HI16, /* type */
160 2, /* size (0 = byte, 1 = short, 2 = long) */
162 FALSE, /* pc_relative */
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 */
172 HOWTO (R_FRV_GPREL12, /* type */
174 2, /* size (0 = byte, 1 = short, 2 = long) */
176 FALSE, /* pc_relative */
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 */
186 HOWTO (R_FRV_GPRELU12, /* type */
188 2, /* size (0 = byte, 1 = short, 2 = long) */
190 FALSE, /* pc_relative */
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 */
200 HOWTO (R_FRV_GPREL32, /* type */
202 2, /* size (0 = byte, 1 = short, 2 = long) */
204 FALSE, /* pc_relative */
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 */
214 HOWTO (R_FRV_GPRELHI, /* type */
216 2, /* size (0 = byte, 1 = short, 2 = long) */
218 FALSE, /* pc_relative */
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 */
228 HOWTO (R_FRV_GPRELLO, /* type */
230 2, /* size (0 = byte, 1 = short, 2 = long) */
232 FALSE, /* pc_relative */
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 */
242 /* A 12-bit signed operand with the GOT offset for the address of
244 HOWTO (R_FRV_GOT12, /* type */
246 2, /* size (0 = byte, 1 = short, 2 = long) */
248 FALSE, /* pc_relative */
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 */
258 /* The upper 16 bits of the GOT offset for the address of the
260 HOWTO (R_FRV_GOTHI, /* type */
262 2, /* size (0 = byte, 1 = short, 2 = long) */
264 FALSE, /* pc_relative */
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 */
274 /* The lower 16 bits of the GOT offset for the address of the
276 HOWTO (R_FRV_GOTLO, /* type */
278 2, /* size (0 = byte, 1 = short, 2 = long) */
280 FALSE, /* pc_relative */
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 */
290 /* The 32-bit address of the canonical descriptor of a function. */
291 HOWTO (R_FRV_FUNCDESC, /* type */
293 2, /* size (0 = byte, 1 = short, 2 = long) */
295 FALSE, /* pc_relative */
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 */
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 */
309 2, /* size (0 = byte, 1 = short, 2 = long) */
311 FALSE, /* pc_relative */
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 */
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 */
325 2, /* size (0 = byte, 1 = short, 2 = long) */
327 FALSE, /* pc_relative */
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 */
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 */
341 2, /* size (0 = byte, 1 = short, 2 = long) */
343 FALSE, /* pc_relative */
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 */
353 /* The 64-bit descriptor of a function. */
354 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
358 FALSE, /* pc_relative */
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 */
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 */
372 2, /* size (0 = byte, 1 = short, 2 = long) */
374 FALSE, /* pc_relative */
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 */
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 */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
390 FALSE, /* pc_relative */
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 */
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 */
404 2, /* size (0 = byte, 1 = short, 2 = long) */
406 FALSE, /* pc_relative */
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 */
416 /* A 12-bit signed operand with the GOT offset for the address of
418 HOWTO (R_FRV_GOTOFF12, /* type */
420 2, /* size (0 = byte, 1 = short, 2 = long) */
422 FALSE, /* pc_relative */
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 */
432 /* The upper 16 bits of the GOT offset for the address of the
434 HOWTO (R_FRV_GOTOFFHI, /* type */
436 2, /* size (0 = byte, 1 = short, 2 = long) */
438 FALSE, /* pc_relative */
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 */
448 /* The lower 16 bits of the GOT offset for the address of the
450 HOWTO (R_FRV_GOTOFFLO, /* type */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
454 FALSE, /* pc_relative */
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 */
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
467 HOWTO (R_FRV_GETTLSOFF, /* type */
469 2, /* size (0 = byte, 1 = short, 2 = long) */
471 TRUE, /* pc_relative */
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 */
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 */
485 2, /* size (0 = byte, 1 = short, 2 = long) */
487 FALSE, /* pc_relative */
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 */
497 /* A 12-bit signed operand with the GOT offset for the TLS
498 descriptor of the symbol. */
499 HOWTO (R_FRV_GOTTLSDESC12, /* type */
501 2, /* size (0 = byte, 1 = short, 2 = long) */
503 FALSE, /* pc_relative */
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 */
513 /* The upper 16 bits of the GOT offset for the TLS descriptor of the
515 HOWTO (R_FRV_GOTTLSDESCHI, /* type */
517 2, /* size (0 = byte, 1 = short, 2 = long) */
519 FALSE, /* pc_relative */
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 */
529 /* The lower 16 bits of the GOT offset for the TLS descriptor of the
531 HOWTO (R_FRV_GOTTLSDESCLO, /* type */
533 2, /* size (0 = byte, 1 = short, 2 = long) */
535 FALSE, /* pc_relative */
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 */
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 */
549 2, /* size (0 = byte, 1 = short, 2 = long) */
551 FALSE, /* pc_relative */
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 */
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 */
565 2, /* size (0 = byte, 1 = short, 2 = long) */
567 FALSE, /* pc_relative */
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 */
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 */
581 2, /* size (0 = byte, 1 = short, 2 = long) */
583 FALSE, /* pc_relative */
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 */
593 /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
595 HOWTO (R_FRV_GOTTLSOFF12, /* type */
597 2, /* size (0 = byte, 1 = short, 2 = long) */
599 FALSE, /* pc_relative */
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 */
609 /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
611 HOWTO (R_FRV_GOTTLSOFFHI, /* type */
613 2, /* size (0 = byte, 1 = short, 2 = long) */
615 FALSE, /* pc_relative */
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 */
625 /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
627 HOWTO (R_FRV_GOTTLSOFFLO, /* type */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
631 FALSE, /* pc_relative */
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 */
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 */
645 2, /* size (0 = byte, 1 = short, 2 = long) */
647 FALSE, /* pc_relative */
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 */
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 */
662 2, /* size (0 = byte, 1 = short, 2 = long) */
664 FALSE, /* pc_relative */
666 complain_overflow_dont, /* complain_on_overflow */
667 bfd_elf_generic_reloc, /* special_function */
668 "R_FRV_TLSDESC_RELAX", /* name */
669 FALSE, /* partial_inplace */
672 FALSE), /* pcrel_offset */
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 */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
681 FALSE, /* pc_relative */
683 complain_overflow_dont, /* complain_on_overflow */
684 bfd_elf_generic_reloc, /* special_function */
685 "R_FRV_GETTLSOFF_RELAX", /* name */
686 FALSE, /* partial_inplace */
689 FALSE), /* pcrel_offset */
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 */
696 2, /* size (0 = byte, 1 = short, 2 = long) */
698 FALSE, /* pc_relative */
700 complain_overflow_bitfield, /* complain_on_overflow */
701 bfd_elf_generic_reloc, /* special_function */
702 "R_FRV_TLSOFF_RELAX", /* name */
703 FALSE, /* partial_inplace */
706 FALSE), /* pcrel_offset */
708 /* A 32-bit offset from the module base address to
709 the thread-local symbol address. */
710 HOWTO (R_FRV_TLSMOFF, /* type */
712 2, /* size (0 = byte, 1 = short, 2 = long) */
714 FALSE, /* pc_relative */
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 */
725 /* GNU extension to record C++ vtable hierarchy. */
726 static reloc_howto_type elf32_frv_vtinherit_howto =
727 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
729 2, /* size (0 = byte, 1 = short, 2 = long) */
731 FALSE, /* pc_relative */
733 complain_overflow_dont, /* complain_on_overflow */
734 NULL, /* special_function */
735 "R_FRV_GNU_VTINHERIT", /* name */
736 FALSE, /* partial_inplace */
739 FALSE); /* pcrel_offset */
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 */
745 2, /* size (0 = byte, 1 = short, 2 = long) */
747 FALSE, /* pc_relative */
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 */
755 FALSE); /* pcrel_offset */
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 */
762 2, /* size (0 = byte, 1 = short, 2 = long) */
764 FALSE, /* pc_relative */
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 */
774 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
775 HOWTO (R_FRV_FUNCDESC, /* type */
777 2, /* size (0 = byte, 1 = short, 2 = long) */
779 FALSE, /* pc_relative */
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 */
789 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
790 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
792 2, /* size (0 = byte, 1 = short, 2 = long) */
794 FALSE, /* pc_relative */
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 */
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
816 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
818 2, /* size (0 = byte, 1 = short, 2 = long) */
820 FALSE, /* pc_relative */
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 */
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 */
835 2, /* size (0 = byte, 1 = short, 2 = long) */
837 FALSE, /* pc_relative */
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 */
849 extern const bfd_target bfd_elf32_frvfdpic_vec;
850 #define IS_FDPIC(bfd) ((bfd)->xvec == &bfd_elf32_frvfdpic_vec)
852 /* An extension of the elf hash table data structure, containing some
853 additional FRV-specific data. */
854 struct frvfdpic_elf_link_hash_table
856 struct elf_link_hash_table elf;
858 /* A pointer to the .got section. */
860 /* A pointer to the .rel.got section. */
862 /* A pointer to the .rofixup section. */
864 /* A pointer to the .plt section. */
866 /* A pointer to the .rel.plt section. */
868 /* GOT base offset. */
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
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;
883 /* Get the FRV ELF linker hash table from a link_info structure. */
885 #define frvfdpic_hash_table(info) \
886 ((struct frvfdpic_elf_link_hash_table *) ((info)->hash))
888 #define frvfdpic_got_section(info) \
889 (frvfdpic_hash_table (info)->sgot)
890 #define frvfdpic_gotrel_section(info) \
891 (frvfdpic_hash_table (info)->sgotrel)
892 #define frvfdpic_gotfixup_section(info) \
893 (frvfdpic_hash_table (info)->sgotfixup)
894 #define frvfdpic_plt_section(info) \
895 (frvfdpic_hash_table (info)->splt)
896 #define frvfdpic_pltrel_section(info) \
897 (frvfdpic_hash_table (info)->spltrel)
898 #define frvfdpic_relocs_info(info) \
899 (frvfdpic_hash_table (info)->relocs_info)
900 #define frvfdpic_got_initial_offset(info) \
901 (frvfdpic_hash_table (info)->got0)
902 #define frvfdpic_plt_initial_offset(info) \
903 (frvfdpic_hash_table (info)->plt0)
904 #define frvfdpic_dynamic_got_plt_info(info) \
905 (frvfdpic_hash_table (info)->g)
907 /* Currently it's the same, but if some day we have a reason to change
908 it, we'd better be using a different macro.
910 FIXME: if there's any TLS PLT entry that uses local-exec or
911 initial-exec models, we could use the ret at the end of any of them
912 instead of adding one more. */
913 #define frvfdpic_plt_tls_ret_offset(info) \
914 (frvfdpic_plt_initial_offset (info))
916 /* The name of the dynamic interpreter. This is put in the .interp
919 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
921 #define DEFAULT_STACK_SIZE 0x20000
923 /* This structure is used to collect the number of entries present in
924 each addressable range of the got. */
925 struct _frvfdpic_dynamic_got_info
927 /* Several bits of information about the current link. */
928 struct bfd_link_info *info;
929 /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
931 bfd_vma got12, gotlos, gothilo;
932 /* Total GOT size needed for function descriptor entries within the 12-,
933 16- or 32-bit ranges. */
934 bfd_vma fd12, fdlos, fdhilo;
935 /* Total GOT size needed by function descriptor entries referenced
936 in PLT entries, that would be profitable to place in offsets
937 close to the PIC register. */
939 /* Total PLT size needed by lazy PLT entries. */
941 /* Total GOT size needed for TLS descriptor entries within the 12-,
942 16- or 32-bit ranges. */
943 bfd_vma tlsd12, tlsdlos, tlsdhilo;
944 /* Total GOT size needed by TLS descriptors referenced in PLT
945 entries, that would be profitable to place in offers close to the
948 /* Total PLT size needed by TLS lazy PLT entries. */
950 /* Number of relocations carried over from input object files. */
951 unsigned long relocs;
952 /* Number of fixups introduced by relocations in input object files. */
953 unsigned long fixups;
954 /* The number of fixups that reference the ret instruction added to
955 the PLT for locally-resolved TLS descriptors. */
956 unsigned long tls_ret_refs;
959 /* This structure is used to assign offsets to got entries, function
960 descriptors, plt entries and lazy plt entries. */
962 struct _frvfdpic_dynamic_got_plt_info
964 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
965 struct _frvfdpic_dynamic_got_info g;
967 /* For each addressable range, we record a MAX (positive) and MIN
968 (negative) value. CUR is used to assign got entries, and it's
969 incremented from an initial positive value to MAX, then from MIN
970 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
971 assign function descriptors, and it's decreased from an initial
972 non-positive value to MIN, then from MAX down to CUR (unless CUR
973 wraps around first). All of MIN, MAX, CUR and FDCUR always point
974 to even words. ODD, if non-zero, indicates an odd word to be
975 used for the next got entry, otherwise CUR is used and
976 incremented by a pair of words, wrapping around when it reaches
977 MAX. FDCUR is decremented (and wrapped) before the next function
978 descriptor is chosen. FDPLT indicates the number of remaining
979 slots that can be used for function descriptors used only by PLT
982 TMAX, TMIN and TCUR are used to assign TLS descriptors. TCUR
983 starts as MAX, and grows up to TMAX, then wraps around to TMIN
984 and grows up to MIN. TLSDPLT indicates the number of remaining
985 slots that can be used for TLS descriptors used only by TLS PLT
987 struct _frvfdpic_dynamic_got_alloc_data
989 bfd_signed_vma max, cur, odd, fdcur, min;
990 bfd_signed_vma tmax, tcur, tmin;
991 bfd_vma fdplt, tlsdplt;
992 } got12, gotlos, gothilo;
995 /* Create an FRV ELF linker hash table. */
997 static struct bfd_link_hash_table *
998 frvfdpic_elf_link_hash_table_create (bfd *abfd)
1000 struct frvfdpic_elf_link_hash_table *ret;
1001 bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
1003 ret = bfd_zalloc (abfd, amt);
1007 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1008 _bfd_elf_link_hash_newfunc,
1009 sizeof (struct elf_link_hash_entry)))
1015 return &ret->elf.root;
1018 /* Decide whether a reference to a symbol can be resolved locally or
1019 not. If the symbol is protected, we want the local address, but
1020 its function descriptor must be assigned by the dynamic linker. */
1021 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
1022 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
1023 || ! elf_hash_table (INFO)->dynamic_sections_created)
1024 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
1025 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
1027 /* This structure collects information on what kind of GOT, PLT or
1028 function descriptors are required by relocations that reference a
1030 struct frvfdpic_relocs_info
1032 /* The index of the symbol, as stored in the relocation r_info, if
1033 we have a local symbol; -1 otherwise. */
1037 /* The input bfd in which the symbol is defined, if it's a local
1040 /* If symndx == -1, the hash table entry corresponding to a global
1041 symbol (even if it turns out to bind locally, in which case it
1042 should ideally be replaced with section's symndx + addend). */
1043 struct elf_link_hash_entry *h;
1045 /* The addend of the relocation that references the symbol. */
1048 /* The fields above are used to identify an entry. The fields below
1049 contain information on how an entry is used and, later on, which
1050 locations it was assigned. */
1051 /* The following 3 fields record whether the symbol+addend above was
1052 ever referenced with a GOT relocation. The 12 suffix indicates a
1053 GOT12 relocation; los is used for GOTLO relocations that are not
1054 matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
1059 /* Whether a FUNCDESC relocation references symbol+addend. */
1061 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1063 unsigned fdgotlos:1;
1064 unsigned fdgothilo:1;
1065 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1066 unsigned fdgoff12:1;
1067 unsigned fdgofflos:1;
1068 unsigned fdgoffhilo:1;
1069 /* Whether a GETTLSOFF relocation references symbol+addend. */
1071 /* FIXME: we should probably add tlspltdesc, tlspltoff and
1072 tlspltimm, to tell what kind of TLS PLT entry we're generating.
1073 We might instead just pre-compute flags telling whether the
1074 object is suitable for local exec, initial exec or general
1075 dynamic addressing, and use that all over the place. We could
1076 also try to do a better job of merging TLSOFF and TLSDESC entries
1077 in main executables, but perhaps we can get rid of TLSDESC
1078 entirely in them instead. */
1079 /* Whether a GOTTLSDESC relocation references symbol+addend. */
1080 unsigned tlsdesc12:1;
1081 unsigned tlsdesclos:1;
1082 unsigned tlsdeschilo:1;
1083 /* Whether a GOTTLSOFF relocation references symbol+addend. */
1084 unsigned tlsoff12:1;
1085 unsigned tlsofflos:1;
1086 unsigned tlsoffhilo:1;
1087 /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1088 GOTOFFHI relocations. The addend doesn't really matter, since we
1089 envision that this will only be used to check whether the symbol
1090 is mapped to the same segment as the got. */
1092 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1094 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1097 /* Whether we need a PLT entry for a symbol. Should be implied by
1099 (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
1101 /* Whether a function descriptor should be created in this link unit
1102 for symbol+addend. Should be implied by something like:
1103 (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1104 || ((fd || fdgot12 || fdgotlos || fdgothilo)
1105 && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
1107 /* Whether a lazy PLT entry is needed for this symbol+addend.
1108 Should be implied by something like:
1109 (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1110 && ! (info->flags & DF_BIND_NOW)) */
1112 /* Whether we've already emitted GOT relocations and PLT entries as
1113 needed for this symbol. */
1116 /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1117 R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1119 unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1121 /* The number of .rofixups entries and dynamic relocations allocated
1122 for this symbol, minus any that might have already been used. */
1123 unsigned fixups, dynrelocs;
1125 /* The offsets of the GOT entries assigned to symbol+addend, to the
1126 function descriptor's address, and to a function descriptor,
1127 respectively. Should be zero if unassigned. The offsets are
1128 counted from the value that will be assigned to the PIC register,
1129 not from the beginning of the .got section. */
1130 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1131 /* The offsets of the PLT entries assigned to symbol+addend,
1132 non-lazy and lazy, respectively. If unassigned, should be
1134 bfd_vma plt_entry, lzplt_entry;
1135 /* The offsets of the GOT entries for TLS offset and TLS descriptor. */
1136 bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1137 /* The offset of the TLS offset PLT entry. */
1138 bfd_vma tlsplt_entry;
1141 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
1143 frvfdpic_relocs_info_hash (const void *entry_)
1145 const struct frvfdpic_relocs_info *entry = entry_;
1147 return (entry->symndx == -1
1148 ? (long) entry->d.h->root.root.hash
1149 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1152 /* Test whether the key fields of two frvfdpic_relocs_info entries are
1155 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1157 const struct frvfdpic_relocs_info *e1 = entry1;
1158 const struct frvfdpic_relocs_info *e2 = entry2;
1160 return e1->symndx == e2->symndx && e1->addend == e2->addend
1161 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1164 /* Find or create an entry in a hash table HT that matches the key
1165 fields of the given ENTRY. If it's not found, memory for a new
1166 entry is allocated in ABFD's obstack. */
1167 static struct frvfdpic_relocs_info *
1168 frvfdpic_relocs_info_find (struct htab *ht,
1170 const struct frvfdpic_relocs_info *entry,
1171 enum insert_option insert)
1173 struct frvfdpic_relocs_info **loc =
1174 (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1182 *loc = bfd_zalloc (abfd, sizeof (**loc));
1187 (*loc)->symndx = entry->symndx;
1188 (*loc)->d = entry->d;
1189 (*loc)->addend = entry->addend;
1190 (*loc)->plt_entry = (bfd_vma)-1;
1191 (*loc)->lzplt_entry = (bfd_vma)-1;
1192 (*loc)->tlsplt_entry = (bfd_vma)-1;
1197 /* Obtain the address of the entry in HT associated with H's symbol +
1198 addend, creating a new entry if none existed. ABFD is only used
1199 for memory allocation purposes. */
1200 inline static struct frvfdpic_relocs_info *
1201 frvfdpic_relocs_info_for_global (struct htab *ht,
1203 struct elf_link_hash_entry *h,
1205 enum insert_option insert)
1207 struct frvfdpic_relocs_info entry;
1211 entry.addend = addend;
1213 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1216 /* Obtain the address of the entry in HT associated with the SYMNDXth
1217 local symbol of the input bfd ABFD, plus the addend, creating a new
1218 entry if none existed. */
1219 inline static struct frvfdpic_relocs_info *
1220 frvfdpic_relocs_info_for_local (struct htab *ht,
1224 enum insert_option insert)
1226 struct frvfdpic_relocs_info entry;
1228 entry.symndx = symndx;
1229 entry.d.abfd = abfd;
1230 entry.addend = addend;
1232 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1235 /* Merge fields set by check_relocs() of two entries that end up being
1236 mapped to the same (presumably global) symbol. */
1239 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1240 struct frvfdpic_relocs_info const *e1)
1242 e2->got12 |= e1->got12;
1243 e2->gotlos |= e1->gotlos;
1244 e2->gothilo |= e1->gothilo;
1246 e2->fdgot12 |= e1->fdgot12;
1247 e2->fdgotlos |= e1->fdgotlos;
1248 e2->fdgothilo |= e1->fdgothilo;
1249 e2->fdgoff12 |= e1->fdgoff12;
1250 e2->fdgofflos |= e1->fdgofflos;
1251 e2->fdgoffhilo |= e1->fdgoffhilo;
1252 e2->tlsplt |= e1->tlsplt;
1253 e2->tlsdesc12 |= e1->tlsdesc12;
1254 e2->tlsdesclos |= e1->tlsdesclos;
1255 e2->tlsdeschilo |= e1->tlsdeschilo;
1256 e2->tlsoff12 |= e1->tlsoff12;
1257 e2->tlsofflos |= e1->tlsofflos;
1258 e2->tlsoffhilo |= e1->tlsoffhilo;
1259 e2->gotoff |= e1->gotoff;
1260 e2->call |= e1->call;
1264 /* Every block of 65535 lazy PLT entries shares a single call to the
1265 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1266 32767, counting from 0). All other lazy PLT entries branch to it
1267 in a single instruction. */
1269 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1270 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1272 /* Add a dynamic relocation to the SRELOC section. */
1274 inline static bfd_vma
1275 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1276 int reloc_type, long dynindx, bfd_vma addend,
1277 struct frvfdpic_relocs_info *entry)
1279 Elf_Internal_Rela outrel;
1280 bfd_vma reloc_offset;
1282 outrel.r_offset = offset;
1283 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1284 outrel.r_addend = addend;
1286 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1287 BFD_ASSERT (reloc_offset < sreloc->size);
1288 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1289 sreloc->contents + reloc_offset);
1290 sreloc->reloc_count++;
1292 /* If the entry's index is zero, this relocation was probably to a
1293 linkonce section that got discarded. We reserved a dynamic
1294 relocation, but it was for another entry than the one we got at
1295 the time of emitting the relocation. Unfortunately there's no
1296 simple way for us to catch this situation, since the relocation
1297 is cleared right before calling relocate_section, at which point
1298 we no longer know what the relocation used to point to. */
1301 BFD_ASSERT (entry->dynrelocs > 0);
1305 return reloc_offset;
1308 /* Add a fixup to the ROFIXUP section. */
1311 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1312 struct frvfdpic_relocs_info *entry)
1314 bfd_vma fixup_offset;
1316 if (rofixup->flags & SEC_EXCLUDE)
1319 fixup_offset = rofixup->reloc_count * 4;
1320 if (rofixup->contents)
1322 BFD_ASSERT (fixup_offset < rofixup->size);
1323 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1325 rofixup->reloc_count++;
1327 if (entry && entry->symndx)
1329 /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1331 BFD_ASSERT (entry->fixups > 0);
1335 return fixup_offset;
1338 /* Find the segment number in which OSEC, and output section, is
1342 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1344 struct elf_segment_map *m;
1345 Elf_Internal_Phdr *p;
1347 /* Find the segment that contains the output_section. */
1348 for (m = elf_tdata (output_bfd)->segment_map,
1349 p = elf_tdata (output_bfd)->phdr;
1355 for (i = m->count - 1; i >= 0; i--)
1356 if (m->sections[i] == osec)
1363 return p - elf_tdata (output_bfd)->phdr;
1366 inline static bfd_boolean
1367 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1369 unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1371 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1374 #define FRVFDPIC_TLS_BIAS (2048 - 16)
1376 /* Return the base VMA address which should be subtracted from real addresses
1377 when resolving TLSMOFF relocation.
1378 This is PT_TLS segment p_vaddr, plus the 2048-16 bias. */
1381 tls_biased_base (struct bfd_link_info *info)
1383 /* If tls_sec is NULL, we should have signalled an error already. */
1384 if (elf_hash_table (info)->tls_sec == NULL)
1385 return FRVFDPIC_TLS_BIAS;
1386 return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1389 /* Generate relocations for GOT entries, function descriptors, and
1390 code for PLT and lazy PLT entries. */
1392 inline static bfd_boolean
1393 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1395 struct bfd_link_info *info,
1397 Elf_Internal_Sym *sym,
1401 bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1408 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1409 || entry->tlsoff_entry || entry->tlsdesc_entry)
1411 /* If the symbol is dynamic, consider it for dynamic
1412 relocations, otherwise decay to section + offset. */
1413 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1414 dynindx = entry->d.h->dynindx;
1417 if (sec->output_section
1418 && ! bfd_is_abs_section (sec->output_section)
1419 && ! bfd_is_und_section (sec->output_section))
1420 dynindx = elf_section_data (sec->output_section)->dynindx;
1426 /* Generate relocation for GOT entry pointing to the symbol. */
1427 if (entry->got_entry)
1430 bfd_vma ad = addend;
1432 /* If the symbol is dynamic but binds locally, use
1434 if (sec && (entry->symndx != -1
1435 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1437 if (entry->symndx == -1)
1438 ad += entry->d.h->root.u.def.value;
1440 ad += sym->st_value;
1441 ad += sec->output_offset;
1442 if (sec->output_section && elf_section_data (sec->output_section))
1443 idx = elf_section_data (sec->output_section)->dynindx;
1448 /* If we're linking an executable at a fixed address, we can
1449 omit the dynamic relocation as long as the symbol is local to
1451 if (info->executable && !info->pie
1452 && (entry->symndx != -1
1453 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1456 ad += sec->output_section->vma;
1457 if (entry->symndx != -1
1458 || entry->d.h->root.type != bfd_link_hash_undefweak)
1459 _frvfdpic_add_rofixup (output_bfd,
1460 frvfdpic_gotfixup_section (info),
1461 frvfdpic_got_section (info)->output_section
1463 + frvfdpic_got_section (info)->output_offset
1464 + frvfdpic_got_initial_offset (info)
1465 + entry->got_entry, entry);
1468 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1469 _bfd_elf_section_offset
1471 frvfdpic_got_section (info),
1472 frvfdpic_got_initial_offset (info)
1474 + frvfdpic_got_section (info)
1475 ->output_section->vma
1476 + frvfdpic_got_section (info)->output_offset,
1477 R_FRV_32, idx, ad, entry);
1479 bfd_put_32 (output_bfd, ad,
1480 frvfdpic_got_section (info)->contents
1481 + frvfdpic_got_initial_offset (info)
1482 + entry->got_entry);
1485 /* Generate relocation for GOT entry pointing to a canonical
1486 function descriptor. */
1487 if (entry->fdgot_entry)
1492 if (! (entry->symndx == -1
1493 && entry->d.h->root.type == bfd_link_hash_undefweak
1494 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1496 /* If the symbol is dynamic and there may be dynamic symbol
1497 resolution because we are, or are linked with, a shared
1498 library, emit a FUNCDESC relocation such that the dynamic
1499 linker will allocate the function descriptor. If the
1500 symbol needs a non-local function descriptor but binds
1501 locally (e.g., its visibility is protected, emit a
1502 dynamic relocation decayed to section+offset. */
1503 if (entry->symndx == -1
1504 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1505 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1506 && !(info->executable && !info->pie))
1508 reloc = R_FRV_FUNCDESC;
1509 idx = elf_section_data (entry->d.h->root.u.def.section
1510 ->output_section)->dynindx;
1511 ad = entry->d.h->root.u.def.section->output_offset
1512 + entry->d.h->root.u.def.value;
1514 else if (entry->symndx == -1
1515 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1517 reloc = R_FRV_FUNCDESC;
1522 (*info->callbacks->reloc_dangerous)
1523 (info, _("relocation requires zero addend"),
1524 elf_hash_table (info)->dynobj,
1525 frvfdpic_got_section (info),
1526 entry->fdgot_entry);
1532 /* Otherwise, we know we have a private function descriptor,
1533 so reference it directly. */
1534 if (elf_hash_table (info)->dynamic_sections_created)
1535 BFD_ASSERT (entry->privfd);
1537 idx = elf_section_data (frvfdpic_got_section (info)
1538 ->output_section)->dynindx;
1539 ad = frvfdpic_got_section (info)->output_offset
1540 + frvfdpic_got_initial_offset (info) + entry->fd_entry;
1543 /* If there is room for dynamic symbol resolution, emit the
1544 dynamic relocation. However, if we're linking an
1545 executable at a fixed location, we won't have emitted a
1546 dynamic symbol entry for the got section, so idx will be
1547 zero, which means we can and should compute the address
1548 of the private descriptor ourselves. */
1549 if (info->executable && !info->pie
1550 && (entry->symndx != -1
1551 || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1553 ad += frvfdpic_got_section (info)->output_section->vma;
1554 _frvfdpic_add_rofixup (output_bfd,
1555 frvfdpic_gotfixup_section (info),
1556 frvfdpic_got_section (info)
1557 ->output_section->vma
1558 + frvfdpic_got_section (info)
1560 + frvfdpic_got_initial_offset (info)
1561 + entry->fdgot_entry, entry);
1564 _frvfdpic_add_dyn_reloc (output_bfd,
1565 frvfdpic_gotrel_section (info),
1566 _bfd_elf_section_offset
1568 frvfdpic_got_section (info),
1569 frvfdpic_got_initial_offset (info)
1570 + entry->fdgot_entry)
1571 + frvfdpic_got_section (info)
1572 ->output_section->vma
1573 + frvfdpic_got_section (info)
1575 reloc, idx, ad, entry);
1578 bfd_put_32 (output_bfd, ad,
1579 frvfdpic_got_section (info)->contents
1580 + frvfdpic_got_initial_offset (info)
1581 + entry->fdgot_entry);
1584 /* Generate relocation to fill in a private function descriptor in
1586 if (entry->fd_entry)
1589 bfd_vma ad = addend;
1591 long lowword, highword;
1593 /* If the symbol is dynamic but binds locally, use
1595 if (sec && (entry->symndx != -1
1596 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1598 if (entry->symndx == -1)
1599 ad += entry->d.h->root.u.def.value;
1601 ad += sym->st_value;
1602 ad += sec->output_offset;
1603 if (sec->output_section && elf_section_data (sec->output_section))
1604 idx = elf_section_data (sec->output_section)->dynindx;
1609 /* If we're linking an executable at a fixed address, we can
1610 omit the dynamic relocation as long as the symbol is local to
1612 if (info->executable && !info->pie
1613 && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1616 ad += sec->output_section->vma;
1618 if (entry->symndx != -1
1619 || entry->d.h->root.type != bfd_link_hash_undefweak)
1621 _frvfdpic_add_rofixup (output_bfd,
1622 frvfdpic_gotfixup_section (info),
1623 frvfdpic_got_section (info)
1624 ->output_section->vma
1625 + frvfdpic_got_section (info)
1627 + frvfdpic_got_initial_offset (info)
1628 + entry->fd_entry, entry);
1629 _frvfdpic_add_rofixup (output_bfd,
1630 frvfdpic_gotfixup_section (info),
1631 frvfdpic_got_section (info)
1632 ->output_section->vma
1633 + frvfdpic_got_section (info)
1635 + frvfdpic_got_initial_offset (info)
1636 + entry->fd_entry + 4, entry);
1642 _frvfdpic_add_dyn_reloc (output_bfd,
1644 ? frvfdpic_pltrel_section (info)
1645 : frvfdpic_gotrel_section (info),
1646 _bfd_elf_section_offset
1648 frvfdpic_got_section (info),
1649 frvfdpic_got_initial_offset (info)
1651 + frvfdpic_got_section (info)
1652 ->output_section->vma
1653 + frvfdpic_got_section (info)
1655 R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1658 /* If we've omitted the dynamic relocation, just emit the fixed
1659 addresses of the symbol and of the local GOT base offset. */
1660 if (info->executable && !info->pie && sec && sec->output_section)
1663 highword = frvfdpic_got_section (info)->output_section->vma
1664 + frvfdpic_got_section (info)->output_offset
1665 + frvfdpic_got_initial_offset (info);
1667 else if (entry->lazyplt)
1671 (*info->callbacks->reloc_dangerous)
1672 (info, _("relocation requires zero addend"),
1673 elf_hash_table (info)->dynobj,
1674 frvfdpic_got_section (info),
1679 fd_lazy_rel_offset = ofst;
1681 /* A function descriptor used for lazy or local resolving is
1682 initialized such that its high word contains the output
1683 section index in which the PLT entries are located, and
1684 the low word contains the address of the lazy PLT entry
1685 entry point, that must be within the memory region
1686 assigned to that section. */
1687 lowword = entry->lzplt_entry + 4
1688 + frvfdpic_plt_section (info)->output_offset
1689 + frvfdpic_plt_section (info)->output_section->vma;
1690 highword = _frvfdpic_osec_to_segment
1691 (output_bfd, frvfdpic_plt_section (info)->output_section);
1695 /* A function descriptor for a local function gets the index
1696 of the section. For a non-local function, it's
1699 if (entry->symndx == -1 && entry->d.h->dynindx != -1
1700 && entry->d.h->dynindx == idx)
1703 highword = _frvfdpic_osec_to_segment
1704 (output_bfd, sec->output_section);
1707 bfd_put_32 (output_bfd, lowword,
1708 frvfdpic_got_section (info)->contents
1709 + frvfdpic_got_initial_offset (info)
1711 bfd_put_32 (output_bfd, highword,
1712 frvfdpic_got_section (info)->contents
1713 + frvfdpic_got_initial_offset (info)
1714 + entry->fd_entry + 4);
1717 /* Generate code for the PLT entry. */
1718 if (entry->plt_entry != (bfd_vma) -1)
1720 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1723 BFD_ASSERT (entry->fd_entry);
1725 /* Figure out what kind of PLT entry we need, depending on the
1726 location of the function descriptor within the GOT. */
1727 if (entry->fd_entry >= -(1 << (12 - 1))
1728 && entry->fd_entry < (1 << (12 - 1)))
1730 /* lddi @(gr15, fd_entry), gr14 */
1731 bfd_put_32 (output_bfd,
1732 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1738 if (entry->fd_entry >= -(1 << (16 - 1))
1739 && entry->fd_entry < (1 << (16 - 1)))
1741 /* setlos lo(fd_entry), gr14 */
1742 bfd_put_32 (output_bfd,
1744 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1750 /* sethi.p hi(fd_entry), gr14
1751 setlo lo(fd_entry), gr14 */
1752 bfd_put_32 (output_bfd,
1754 | ((entry->fd_entry >> 16)
1755 & (((bfd_vma)1 << 16) - 1)),
1758 bfd_put_32 (output_bfd,
1760 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1764 /* ldd @(gr14,gr15),gr14 */
1765 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1768 /* jmpl @(gr14,gr0) */
1769 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1772 /* Generate code for the lazy PLT entry. */
1773 if (entry->lzplt_entry != (bfd_vma) -1)
1775 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1776 + entry->lzplt_entry;
1777 bfd_vma resolverStub_addr;
1779 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1782 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1783 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1784 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1785 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1787 if (entry->lzplt_entry == resolverStub_addr)
1789 /* This is a lazy PLT entry that includes a resolver call. */
1790 /* ldd @(gr15,gr0), gr4
1792 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1793 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1797 /* bra resolverStub */
1798 bfd_put_32 (output_bfd,
1800 | (((resolverStub_addr - entry->lzplt_entry)
1801 / 4) & (((bfd_vma)1 << 16) - 1)),
1806 /* Generate relocation for GOT entry holding the TLS offset. */
1807 if (entry->tlsoff_entry)
1810 bfd_vma ad = addend;
1812 if (entry->symndx != -1
1813 || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1815 /* If the symbol is dynamic but binds locally, use
1819 if (entry->symndx == -1)
1820 ad += entry->d.h->root.u.def.value;
1822 ad += sym->st_value;
1823 ad += sec->output_offset;
1824 if (sec->output_section
1825 && elf_section_data (sec->output_section))
1826 idx = elf_section_data (sec->output_section)->dynindx;
1832 /* *ABS*+addend is special for TLS relocations, use only the
1834 if (info->executable
1836 && (bfd_is_abs_section (sec)
1837 || bfd_is_und_section (sec)))
1839 /* If we're linking an executable, we can entirely omit the
1840 dynamic relocation if the symbol is local to this module. */
1841 else if (info->executable
1842 && (entry->symndx != -1
1843 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1846 ad += sec->output_section->vma - tls_biased_base (info);
1851 && (bfd_is_abs_section (sec)
1852 || bfd_is_und_section (sec)))
1854 if (! elf_hash_table (info)->tls_sec)
1856 (*info->callbacks->undefined_symbol)
1857 (info, "TLS section", elf_hash_table (info)->dynobj,
1858 frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1861 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1862 ad += FRVFDPIC_TLS_BIAS;
1864 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1865 _bfd_elf_section_offset
1867 frvfdpic_got_section (info),
1868 frvfdpic_got_initial_offset (info)
1869 + entry->tlsoff_entry)
1870 + frvfdpic_got_section (info)
1871 ->output_section->vma
1872 + frvfdpic_got_section (info)
1874 R_FRV_TLSOFF, idx, ad, entry);
1877 bfd_put_32 (output_bfd, ad,
1878 frvfdpic_got_section (info)->contents
1879 + frvfdpic_got_initial_offset (info)
1880 + entry->tlsoff_entry);
1883 if (entry->tlsdesc_entry)
1886 bfd_vma ad = addend;
1888 /* If the symbol is dynamic but binds locally, use
1890 if (sec && (entry->symndx != -1
1891 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1893 if (entry->symndx == -1)
1894 ad += entry->d.h->root.u.def.value;
1896 ad += sym->st_value;
1897 ad += sec->output_offset;
1898 if (sec->output_section && elf_section_data (sec->output_section))
1899 idx = elf_section_data (sec->output_section)->dynindx;
1904 /* If we didn't set up a TLS offset entry, but we're linking an
1905 executable and the symbol binds locally, we can use the
1906 module offset in the TLS descriptor in relaxations. */
1907 if (info->executable && ! entry->tlsoff_entry)
1908 entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1910 if (info->executable && !info->pie
1912 && (bfd_is_abs_section (sec)
1913 || bfd_is_und_section (sec)))
1914 || entry->symndx != -1
1915 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1917 /* *ABS*+addend is special for TLS relocations, use only the
1918 addend for the TLS offset, and take the module id as
1921 && (bfd_is_abs_section (sec)
1922 || bfd_is_und_section (sec)))
1924 /* For other TLS symbols that bind locally, add the section
1925 TLS offset to the addend. */
1927 ad += sec->output_section->vma - tls_biased_base (info);
1929 bfd_put_32 (output_bfd,
1930 frvfdpic_plt_section (info)->output_section->vma
1931 + frvfdpic_plt_section (info)->output_offset
1932 + frvfdpic_plt_tls_ret_offset (info),
1933 frvfdpic_got_section (info)->contents
1934 + frvfdpic_got_initial_offset (info)
1935 + entry->tlsdesc_entry);
1937 _frvfdpic_add_rofixup (output_bfd,
1938 frvfdpic_gotfixup_section (info),
1939 frvfdpic_got_section (info)
1940 ->output_section->vma
1941 + frvfdpic_got_section (info)
1943 + frvfdpic_got_initial_offset (info)
1944 + entry->tlsdesc_entry, entry);
1946 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1948 /* We've used one of the reserved fixups, so discount it so
1949 that we can check at the end that we've used them
1951 frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1953 /* While at that, make sure the ret instruction makes to the
1954 right location in the PLT. We could do it only when we
1955 got to 0, but since the check at the end will only print
1956 a warning, make sure we have the ret in place in case the
1957 warning is missed. */
1958 bfd_put_32 (output_bfd, 0xc03a4000,
1959 frvfdpic_plt_section (info)->contents
1960 + frvfdpic_plt_tls_ret_offset (info));
1965 && (bfd_is_abs_section (sec)
1966 || bfd_is_und_section (sec)))
1968 if (! elf_hash_table (info)->tls_sec)
1970 (*info->callbacks->undefined_symbol)
1971 (info, "TLS section", elf_hash_table (info)->dynobj,
1972 frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1975 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1976 ad += FRVFDPIC_TLS_BIAS;
1979 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1980 _bfd_elf_section_offset
1982 frvfdpic_got_section (info),
1983 frvfdpic_got_initial_offset (info)
1984 + entry->tlsdesc_entry)
1985 + frvfdpic_got_section (info)
1986 ->output_section->vma
1987 + frvfdpic_got_section (info)
1989 R_FRV_TLSDESC_VALUE, idx, ad, entry);
1991 bfd_put_32 (output_bfd, 0,
1992 frvfdpic_got_section (info)->contents
1993 + frvfdpic_got_initial_offset (info)
1994 + entry->tlsdesc_entry);
1997 bfd_put_32 (output_bfd, ad,
1998 frvfdpic_got_section (info)->contents
1999 + frvfdpic_got_initial_offset (info)
2000 + entry->tlsdesc_entry + 4);
2003 /* Generate code for the get-TLS-offset PLT entry. */
2004 if (entry->tlsplt_entry != (bfd_vma) -1)
2006 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
2007 + entry->tlsplt_entry;
2009 if (info->executable
2010 && (entry->symndx != -1
2011 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
2014 bfd_vma ad = addend;
2016 /* sec may be NULL when referencing an undefweak symbol
2017 while linking a static executable. */
2020 BFD_ASSERT (entry->symndx == -1
2021 && entry->d.h->root.type == bfd_link_hash_undefweak);
2025 if (entry->symndx == -1)
2026 ad += entry->d.h->root.u.def.value;
2028 ad += sym->st_value;
2029 ad += sec->output_offset;
2030 if (sec->output_section
2031 && elf_section_data (sec->output_section))
2032 idx = elf_section_data (sec->output_section)->dynindx;
2037 /* *ABS*+addend is special for TLS relocations, use only the
2038 addend for the TLS offset, and take the module id as
2041 && (bfd_is_abs_section (sec)
2042 || bfd_is_und_section (sec)))
2044 /* For other TLS symbols that bind locally, add the section
2045 TLS offset to the addend. */
2047 ad += sec->output_section->vma - tls_biased_base (info);
2049 if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
2050 && (bfd_signed_vma)ad < (1 << (16 - 1)))
2052 /* setlos lo(ad), gr9 */
2053 bfd_put_32 (output_bfd,
2056 & (((bfd_vma)1 << 16) - 1)),
2062 /* sethi.p hi(ad), gr9
2063 setlo lo(ad), gr9 */
2064 bfd_put_32 (output_bfd,
2067 & (((bfd_vma)1 << 16) - 1)),
2070 bfd_put_32 (output_bfd,
2073 & (((bfd_vma)1 << 16) - 1)),
2078 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2080 else if (entry->tlsoff_entry)
2082 /* Figure out what kind of PLT entry we need, depending on the
2083 location of the TLS descriptor within the GOT. */
2084 if (entry->tlsoff_entry >= -(1 << (12 - 1))
2085 && entry->tlsoff_entry < (1 << (12 - 1)))
2087 /* ldi @(gr15, tlsoff_entry), gr9 */
2088 bfd_put_32 (output_bfd,
2089 0x92c8f000 | (entry->tlsoff_entry
2096 if (entry->tlsoff_entry >= -(1 << (16 - 1))
2097 && entry->tlsoff_entry < (1 << (16 - 1)))
2099 /* setlos lo(tlsoff_entry), gr8 */
2100 bfd_put_32 (output_bfd,
2102 | (entry->tlsoff_entry
2103 & (((bfd_vma)1 << 16) - 1)),
2109 /* sethi.p hi(tlsoff_entry), gr8
2110 setlo lo(tlsoff_entry), gr8 */
2111 bfd_put_32 (output_bfd,
2113 | ((entry->tlsoff_entry >> 16)
2114 & (((bfd_vma)1 << 16) - 1)),
2117 bfd_put_32 (output_bfd,
2119 | (entry->tlsoff_entry
2120 & (((bfd_vma)1 << 16) - 1)),
2124 /* ld @(gr15,gr8),gr9 */
2125 bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2129 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2133 BFD_ASSERT (entry->tlsdesc_entry);
2135 /* Figure out what kind of PLT entry we need, depending on the
2136 location of the TLS descriptor within the GOT. */
2137 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2138 && entry->tlsdesc_entry < (1 << (12 - 1)))
2140 /* lddi @(gr15, tlsdesc_entry), gr8 */
2141 bfd_put_32 (output_bfd,
2142 0x90ccf000 | (entry->tlsdesc_entry
2149 if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2150 && entry->tlsdesc_entry < (1 << (16 - 1)))
2152 /* setlos lo(tlsdesc_entry), gr8 */
2153 bfd_put_32 (output_bfd,
2155 | (entry->tlsdesc_entry
2156 & (((bfd_vma)1 << 16) - 1)),
2162 /* sethi.p hi(tlsdesc_entry), gr8
2163 setlo lo(tlsdesc_entry), gr8 */
2164 bfd_put_32 (output_bfd,
2166 | ((entry->tlsdesc_entry >> 16)
2167 & (((bfd_vma)1 << 16) - 1)),
2170 bfd_put_32 (output_bfd,
2172 | (entry->tlsdesc_entry
2173 & (((bfd_vma)1 << 16) - 1)),
2177 /* ldd @(gr15,gr8),gr8 */
2178 bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2181 /* jmpl @(gr8,gr0) */
2182 bfd_put_32 (output_bfd, 0x80308000, plt_code);
2189 /* Handle an FRV small data reloc. */
2191 static bfd_reloc_status_type
2192 elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation,
2194 struct bfd_link_info *info;
2196 asection *input_section;
2197 Elf_Internal_Rela *relocation;
2203 struct bfd_link_hash_entry *h;
2205 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2207 gp = (h->u.def.value
2208 + h->u.def.section->output_section->vma
2209 + h->u.def.section->output_offset);
2211 value -= input_section->output_section->vma;
2212 value -= (gp - input_section->output_section->vma);
2214 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2216 value += relocation->r_addend;
2218 if ((long) value > 0x7ff || (long) value < -0x800)
2219 return bfd_reloc_overflow;
2221 bfd_put_32 (input_bfd,
2222 (insn & 0xfffff000) | (value & 0xfff),
2223 contents + relocation->r_offset);
2225 return bfd_reloc_ok;
2228 /* Handle an FRV small data reloc. for the u12 field. */
2230 static bfd_reloc_status_type
2231 elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation,
2233 struct bfd_link_info *info;
2235 asection *input_section;
2236 Elf_Internal_Rela *relocation;
2242 struct bfd_link_hash_entry *h;
2245 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2247 gp = (h->u.def.value
2248 + h->u.def.section->output_section->vma
2249 + h->u.def.section->output_offset);
2251 value -= input_section->output_section->vma;
2252 value -= (gp - input_section->output_section->vma);
2254 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2256 value += relocation->r_addend;
2258 if ((long) value > 0x7ff || (long) value < -0x800)
2259 return bfd_reloc_overflow;
2261 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
2263 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2265 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2267 return bfd_reloc_ok;
2270 /* Handle an FRV ELF HI16 reloc. */
2272 static bfd_reloc_status_type
2273 elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value)
2275 Elf_Internal_Rela *relhi;
2281 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2283 value += relhi->r_addend;
2284 value = ((value >> 16) & 0xffff);
2286 insn = (insn & 0xffff0000) | value;
2288 if ((long) value > 0xffff || (long) value < -0x10000)
2289 return bfd_reloc_overflow;
2291 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2292 return bfd_reloc_ok;
2295 static bfd_reloc_status_type
2296 elf32_frv_relocate_lo16 (input_bfd, rello, contents, value)
2298 Elf_Internal_Rela *rello;
2304 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2306 value += rello->r_addend;
2307 value = value & 0xffff;
2309 insn = (insn & 0xffff0000) | value;
2311 if ((long) value > 0xffff || (long) value < -0x10000)
2312 return bfd_reloc_overflow;
2314 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2315 return bfd_reloc_ok;
2318 /* Perform the relocation for the CALL label24 instruction. */
2320 static bfd_reloc_status_type
2321 elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value)
2323 asection *input_section;
2324 Elf_Internal_Rela *rello;
2332 /* The format for the call instruction is:
2334 0 000000 0001111 000000000000000000
2335 label6 opcode label18
2337 The branch calculation is: pc + (4*label24)
2338 where label24 is the concatenation of label6 and label18. */
2340 /* Grab the instruction. */
2341 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2343 value -= input_section->output_section->vma + input_section->output_offset;
2344 value -= rello->r_offset;
2345 value += rello->r_addend;
2349 label6 = value & 0xfc0000;
2350 label6 = label6 << 7;
2352 label18 = value & 0x3ffff;
2354 insn = insn & 0x803c0000;
2355 insn = insn | label6;
2356 insn = insn | label18;
2358 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2360 return bfd_reloc_ok;
2363 static bfd_reloc_status_type
2364 elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation,
2366 struct bfd_link_info *info;
2368 asection *input_section;
2369 Elf_Internal_Rela *relocation;
2375 struct bfd_link_hash_entry *h;
2377 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2379 gp = (h->u.def.value
2380 + h->u.def.section->output_section->vma
2381 + h->u.def.section->output_offset);
2383 value -= input_section->output_section->vma;
2384 value -= (gp - input_section->output_section->vma);
2385 value += relocation->r_addend;
2386 value = ((value >> 16) & 0xffff);
2388 if ((long) value > 0xffff || (long) value < -0x10000)
2389 return bfd_reloc_overflow;
2391 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2392 insn = (insn & 0xffff0000) | value;
2394 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2395 return bfd_reloc_ok;
2398 static bfd_reloc_status_type
2399 elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation,
2401 struct bfd_link_info *info;
2403 asection *input_section;
2404 Elf_Internal_Rela *relocation;
2410 struct bfd_link_hash_entry *h;
2412 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2414 gp = (h->u.def.value
2415 + h->u.def.section->output_section->vma
2416 + h->u.def.section->output_offset);
2418 value -= input_section->output_section->vma;
2419 value -= (gp - input_section->output_section->vma);
2420 value += relocation->r_addend;
2421 value = value & 0xffff;
2423 if ((long) value > 0xffff || (long) value < -0x10000)
2424 return bfd_reloc_overflow;
2426 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2427 insn = (insn & 0xffff0000) | value;
2429 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2431 return bfd_reloc_ok;
2434 static reloc_howto_type *
2435 frv_reloc_type_lookup (abfd, code)
2436 bfd *abfd ATTRIBUTE_UNUSED;
2437 bfd_reloc_code_real_type code;
2444 case BFD_RELOC_NONE:
2445 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2448 if (elf_elfheader (abfd)->e_type == ET_EXEC
2449 || elf_elfheader (abfd)->e_type == ET_DYN)
2450 return &elf32_frv_rel_32_howto;
2452 case BFD_RELOC_CTOR:
2453 return &elf32_frv_howto_table[ (int) R_FRV_32];
2455 case BFD_RELOC_FRV_LABEL16:
2456 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2458 case BFD_RELOC_FRV_LABEL24:
2459 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2461 case BFD_RELOC_FRV_LO16:
2462 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2464 case BFD_RELOC_FRV_HI16:
2465 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2467 case BFD_RELOC_FRV_GPREL12:
2468 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2470 case BFD_RELOC_FRV_GPRELU12:
2471 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2473 case BFD_RELOC_FRV_GPREL32:
2474 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2476 case BFD_RELOC_FRV_GPRELHI:
2477 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2479 case BFD_RELOC_FRV_GPRELLO:
2480 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2482 case BFD_RELOC_FRV_GOT12:
2483 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2485 case BFD_RELOC_FRV_GOTHI:
2486 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2488 case BFD_RELOC_FRV_GOTLO:
2489 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2491 case BFD_RELOC_FRV_FUNCDESC:
2492 if (elf_elfheader (abfd)->e_type == ET_EXEC
2493 || elf_elfheader (abfd)->e_type == ET_DYN)
2494 return &elf32_frv_rel_funcdesc_howto;
2495 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2497 case BFD_RELOC_FRV_FUNCDESC_GOT12:
2498 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2500 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2501 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2503 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2504 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2506 case BFD_RELOC_FRV_FUNCDESC_VALUE:
2507 if (elf_elfheader (abfd)->e_type == ET_EXEC
2508 || elf_elfheader (abfd)->e_type == ET_DYN)
2509 return &elf32_frv_rel_funcdesc_value_howto;
2510 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2512 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2513 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2515 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2516 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2518 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2519 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2521 case BFD_RELOC_FRV_GOTOFF12:
2522 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2524 case BFD_RELOC_FRV_GOTOFFHI:
2525 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2527 case BFD_RELOC_FRV_GOTOFFLO:
2528 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2530 case BFD_RELOC_FRV_GETTLSOFF:
2531 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2533 case BFD_RELOC_FRV_TLSDESC_VALUE:
2534 if (elf_elfheader (abfd)->e_type == ET_EXEC
2535 || elf_elfheader (abfd)->e_type == ET_DYN)
2536 return &elf32_frv_rel_tlsdesc_value_howto;
2537 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2539 case BFD_RELOC_FRV_GOTTLSDESC12:
2540 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2542 case BFD_RELOC_FRV_GOTTLSDESCHI:
2543 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2545 case BFD_RELOC_FRV_GOTTLSDESCLO:
2546 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2548 case BFD_RELOC_FRV_TLSMOFF12:
2549 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2551 case BFD_RELOC_FRV_TLSMOFFHI:
2552 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2554 case BFD_RELOC_FRV_TLSMOFFLO:
2555 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2557 case BFD_RELOC_FRV_GOTTLSOFF12:
2558 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2560 case BFD_RELOC_FRV_GOTTLSOFFHI:
2561 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2563 case BFD_RELOC_FRV_GOTTLSOFFLO:
2564 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2566 case BFD_RELOC_FRV_TLSOFF:
2567 if (elf_elfheader (abfd)->e_type == ET_EXEC
2568 || elf_elfheader (abfd)->e_type == ET_DYN)
2569 return &elf32_frv_rel_tlsoff_howto;
2570 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2572 case BFD_RELOC_FRV_TLSDESC_RELAX:
2573 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2575 case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2576 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2578 case BFD_RELOC_FRV_TLSOFF_RELAX:
2579 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2581 case BFD_RELOC_FRV_TLSMOFF:
2582 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2584 case BFD_RELOC_VTABLE_INHERIT:
2585 return &elf32_frv_vtinherit_howto;
2587 case BFD_RELOC_VTABLE_ENTRY:
2588 return &elf32_frv_vtentry_howto;
2594 static reloc_howto_type *
2595 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2600 i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2602 if (elf32_frv_howto_table[i].name != NULL
2603 && strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2604 return &elf32_frv_howto_table[i];
2606 if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2607 return &elf32_frv_vtinherit_howto;
2608 if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2609 return &elf32_frv_vtentry_howto;
2614 /* Set the howto pointer for an FRV ELF reloc. */
2617 frv_info_to_howto_rela (abfd, cache_ptr, dst)
2618 bfd *abfd ATTRIBUTE_UNUSED;
2620 Elf_Internal_Rela *dst;
2622 unsigned int r_type;
2624 r_type = ELF32_R_TYPE (dst->r_info);
2627 case R_FRV_GNU_VTINHERIT:
2628 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2631 case R_FRV_GNU_VTENTRY:
2632 cache_ptr->howto = &elf32_frv_vtentry_howto;
2636 cache_ptr->howto = & elf32_frv_howto_table [r_type];
2641 /* Set the howto pointer for an FRV ELF REL reloc. */
2643 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2644 arelent *cache_ptr, Elf_Internal_Rela *dst)
2646 unsigned int r_type;
2648 r_type = ELF32_R_TYPE (dst->r_info);
2652 cache_ptr->howto = &elf32_frv_rel_32_howto;
2655 case R_FRV_FUNCDESC:
2656 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2659 case R_FRV_FUNCDESC_VALUE:
2660 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2663 case R_FRV_TLSDESC_VALUE:
2664 cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2668 cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2672 cache_ptr->howto = NULL;
2677 /* Perform a single relocation. By default we use the standard BFD
2678 routines, but a few relocs, we have to do them ourselves. */
2680 static bfd_reloc_status_type
2681 frv_final_link_relocate (howto, input_bfd, input_section, contents, rel,
2683 reloc_howto_type *howto;
2685 asection *input_section;
2687 Elf_Internal_Rela *rel;
2690 return _bfd_final_link_relocate (howto, input_bfd, input_section,
2691 contents, rel->r_offset, relocation,
2696 /* Relocate an FRV ELF section.
2698 The RELOCATE_SECTION function is called by the new ELF backend linker
2699 to handle the relocations for a section.
2701 The relocs are always passed as Rela structures; if the section
2702 actually uses Rel structures, the r_addend field will always be
2705 This function is responsible for adjusting the section contents as
2706 necessary, and (if using Rela relocs and generating a relocatable
2707 output file) adjusting the reloc addend as necessary.
2709 This function does not have to worry about setting the reloc
2710 address or the reloc symbol index.
2712 LOCAL_SYMS is a pointer to the swapped in local symbols.
2714 LOCAL_SECTIONS is an array giving the section in the input file
2715 corresponding to the st_shndx field of each local symbol.
2717 The global hash table entry for the global symbols can be found
2718 via elf_sym_hashes (input_bfd).
2720 When generating relocatable output, this function must handle
2721 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2722 going to be the section symbol corresponding to the output
2723 section, which means that the addend must be adjusted
2727 elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
2728 contents, relocs, local_syms, local_sections)
2729 bfd *output_bfd ATTRIBUTE_UNUSED;
2730 struct bfd_link_info *info;
2732 asection *input_section;
2734 Elf_Internal_Rela *relocs;
2735 Elf_Internal_Sym *local_syms;
2736 asection **local_sections;
2738 Elf_Internal_Shdr *symtab_hdr;
2739 struct elf_link_hash_entry **sym_hashes;
2740 Elf_Internal_Rela *rel;
2741 Elf_Internal_Rela *relend;
2742 unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2744 int silence_segment_error = !(info->shared || info->pie);
2747 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2748 sym_hashes = elf_sym_hashes (input_bfd);
2749 relend = relocs + input_section->reloc_count;
2751 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2752 input_section->output_section);
2753 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2754 got_segment = _frvfdpic_osec_to_segment (output_bfd,
2755 frvfdpic_got_section (info)
2759 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2760 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2761 frvfdpic_gotfixup_section (info)
2765 if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2766 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2767 frvfdpic_plt_section (info)
2771 if (elf_hash_table (info)->tls_sec)
2772 tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2773 elf_hash_table (info)->tls_sec);
2777 for (rel = relocs; rel < relend; rel ++)
2779 reloc_howto_type *howto;
2780 unsigned long r_symndx;
2781 Elf_Internal_Sym *sym;
2783 struct elf_link_hash_entry *h;
2785 bfd_reloc_status_type r;
2786 const char * name = NULL;
2789 struct frvfdpic_relocs_info *picrel;
2790 bfd_vma orig_addend = rel->r_addend;
2792 r_type = ELF32_R_TYPE (rel->r_info);
2794 if ( r_type == R_FRV_GNU_VTINHERIT
2795 || r_type == R_FRV_GNU_VTENTRY)
2798 r_symndx = ELF32_R_SYM (rel->r_info);
2799 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2804 if (r_symndx < symtab_hdr->sh_info)
2806 sym = local_syms + r_symndx;
2807 osec = sec = local_sections [r_symndx];
2808 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2810 name = bfd_elf_string_from_elf_section
2811 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2812 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
2817 bfd_boolean unresolved_reloc;
2819 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2820 r_symndx, symtab_hdr, sym_hashes,
2822 unresolved_reloc, warned);
2826 if (sec != NULL && elf_discarded_section (sec))
2828 /* For relocs against symbols from removed linkonce sections,
2829 or sections discarded by a linker script, we just want the
2830 section contents zeroed. Avoid any special processing. */
2831 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2837 if (info->relocatable)
2840 if (r_type != R_FRV_TLSMOFF
2842 && (h->root.type == bfd_link_hash_defined
2843 || h->root.type == bfd_link_hash_defweak)
2844 && !FRVFDPIC_SYM_LOCAL (info, h))
2854 if (! IS_FDPIC (output_bfd))
2860 case R_FRV_FUNCDESC_GOT12:
2861 case R_FRV_FUNCDESC_GOTHI:
2862 case R_FRV_FUNCDESC_GOTLO:
2863 case R_FRV_GOTOFF12:
2864 case R_FRV_GOTOFFHI:
2865 case R_FRV_GOTOFFLO:
2866 case R_FRV_FUNCDESC_GOTOFF12:
2867 case R_FRV_FUNCDESC_GOTOFFHI:
2868 case R_FRV_FUNCDESC_GOTOFFLO:
2869 case R_FRV_FUNCDESC:
2870 case R_FRV_FUNCDESC_VALUE:
2871 case R_FRV_GETTLSOFF:
2872 case R_FRV_TLSDESC_VALUE:
2873 case R_FRV_GOTTLSDESC12:
2874 case R_FRV_GOTTLSDESCHI:
2875 case R_FRV_GOTTLSDESCLO:
2876 case R_FRV_TLSMOFF12:
2877 case R_FRV_TLSMOFFHI:
2878 case R_FRV_TLSMOFFLO:
2879 case R_FRV_GOTTLSOFF12:
2880 case R_FRV_GOTTLSOFFHI:
2881 case R_FRV_GOTTLSOFFLO:
2883 case R_FRV_TLSDESC_RELAX:
2884 case R_FRV_GETTLSOFF_RELAX:
2885 case R_FRV_TLSOFF_RELAX:
2888 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2889 (info), input_bfd, h,
2890 orig_addend, INSERT);
2892 /* In order to find the entry we created before, we must
2893 use the original addend, not the one that may have been
2894 modified by _bfd_elf_rela_local_sym(). */
2895 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2896 (info), input_bfd, r_symndx,
2897 orig_addend, INSERT);
2901 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2905 (*_bfd_error_handler)
2906 (_("%B(%A+0x%x): relocation to `%s+%x' may have caused the error above"),
2907 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2916 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
2918 info->callbacks->warning
2919 (info, _("relocation references symbol not defined in the module"),
2920 name, input_bfd, input_section, rel->r_offset);
2928 case R_FRV_GETTLSOFF:
2929 case R_FRV_TLSDESC_VALUE:
2930 case R_FRV_GOTTLSDESC12:
2931 case R_FRV_GOTTLSDESCHI:
2932 case R_FRV_GOTTLSDESCLO:
2933 case R_FRV_TLSMOFF12:
2934 case R_FRV_TLSMOFFHI:
2935 case R_FRV_TLSMOFFLO:
2936 case R_FRV_GOTTLSOFF12:
2937 case R_FRV_GOTTLSOFFHI:
2938 case R_FRV_GOTTLSOFFLO:
2940 case R_FRV_TLSDESC_RELAX:
2941 case R_FRV_GETTLSOFF_RELAX:
2942 case R_FRV_TLSOFF_RELAX:
2944 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2945 relocation += tls_biased_base (info);
2952 /* Try to apply TLS relaxations. */
2957 #define LOCAL_EXEC_P(info, picrel) \
2958 ((info)->executable \
2959 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2960 #define INITIAL_EXEC_P(info, picrel) \
2961 (((info)->executable || (info)->flags & DF_STATIC_TLS) \
2962 && (picrel)->tlsoff_entry)
2964 #define IN_RANGE_FOR_OFST12_P(value) \
2965 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2966 #define IN_RANGE_FOR_SETLOS_P(value) \
2967 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2968 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2969 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2971 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2972 (LOCAL_EXEC_P ((info), (picrel)) \
2973 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2974 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2975 (INITIAL_EXEC_P ((info), (picrel)) \
2976 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2978 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2979 (LOCAL_EXEC_P ((info), (picrel)))
2980 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2981 (INITIAL_EXEC_P ((info), (picrel)))
2983 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2984 (LOCAL_EXEC_P ((info), (picrel)) \
2985 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2987 case R_FRV_GETTLSOFF:
2988 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2990 /* Is this a call instruction? */
2991 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2993 r = info->callbacks->warning
2995 _("R_FRV_GETTLSOFF not applied to a call instruction"),
2996 name, input_bfd, input_section, rel->r_offset);
3000 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
3001 relocation + rel->r_addend))
3003 /* Replace the call instruction (except the packing bit)
3004 with setlos #tlsmofflo(symbol+offset), gr9. */
3005 insn &= (unsigned long)0x80000000;
3006 insn |= (unsigned long)0x12fc0000;
3007 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3009 r_type = R_FRV_TLSMOFFLO;
3010 howto = elf32_frv_howto_table + r_type;
3011 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3014 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
3016 /* Replace the call instruction (except the packing bit)
3017 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
3018 insn &= (unsigned long)0x80000000;
3019 insn |= (unsigned long)0x12c8f000;
3020 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3022 r_type = R_FRV_GOTTLSOFF12;
3023 howto = elf32_frv_howto_table + r_type;
3024 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3029 case R_FRV_GOTTLSDESC12:
3030 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3032 /* Is this an lddi instruction? */
3033 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
3035 r = info->callbacks->warning
3037 _("R_FRV_GOTTLSDESC12 not applied to an lddi instruction"),
3038 name, input_bfd, input_section, rel->r_offset);
3042 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3043 relocation + rel->r_addend)
3044 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3047 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3048 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3049 Preserve the packing bit. */
3050 insn = (insn & (unsigned long)0x80000000)
3051 | ((insn + (unsigned long)0x02000000)
3052 & (unsigned long)0x7e000000);
3053 insn |= (unsigned long)0x00fc0000;
3054 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3056 r_type = R_FRV_TLSMOFFLO;
3057 howto = elf32_frv_howto_table + r_type;
3058 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3061 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3062 relocation + rel->r_addend))
3064 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3065 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3066 Preserve the packing bit. */
3067 insn = (insn & (unsigned long)0x80000000)
3068 | ((insn + (unsigned long)0x02000000)
3069 & (unsigned long)0x7e000000);
3070 insn |= (unsigned long)0x00f80000;
3071 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3073 r_type = R_FRV_TLSMOFFHI;
3074 howto = elf32_frv_howto_table + r_type;
3075 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3078 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3080 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3081 with ldi @(grB, #gottlsoff12(symbol+offset),
3082 gr<C+1>. Preserve the packing bit. If gottlsoff12
3083 overflows, we'll error out, but that's sort-of ok,
3084 since we'd started with gottlsdesc12, that's actually
3085 more demanding. Compiling with -fPIE instead of
3086 -fpie would fix it; linking with --relax should fix
3088 insn = (insn & (unsigned long)0x80cbf000)
3089 | ((insn + (unsigned long)0x02000000)
3090 & (unsigned long)0x7e000000);
3091 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3093 r_type = R_FRV_GOTTLSOFF12;
3094 howto = elf32_frv_howto_table + r_type;
3095 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3100 case R_FRV_GOTTLSDESCHI:
3101 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3103 /* Is this a sethi instruction? */
3104 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3106 r = info->callbacks->warning
3108 _("R_FRV_GOTTLSDESCHI not applied to a sethi instruction"),
3109 name, input_bfd, input_section, rel->r_offset);
3113 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3114 relocation + rel->r_addend)
3115 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3116 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3118 /* Replace sethi with a nop. Preserve the packing bit. */
3119 insn &= (unsigned long)0x80000000;
3120 insn |= (unsigned long)0x00880000;
3121 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3123 /* Nothing to relocate. */
3127 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3129 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3130 r_type = R_FRV_GOTTLSOFFHI;
3131 howto = elf32_frv_howto_table + r_type;
3132 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3137 case R_FRV_GOTTLSDESCLO:
3138 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3140 /* Is this a setlo or setlos instruction? */
3141 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3143 r = info->callbacks->warning
3145 _("R_FRV_GOTTLSDESCLO"
3146 " not applied to a setlo or setlos instruction"),
3147 name, input_bfd, input_section, rel->r_offset);
3151 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3152 relocation + rel->r_addend)
3153 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3154 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3156 /* Replace setlo/setlos with a nop. Preserve the
3158 insn &= (unsigned long)0x80000000;
3159 insn |= (unsigned long)0x00880000;
3160 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3162 /* Nothing to relocate. */
3166 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3168 /* If the corresponding sethi (if it exists) decayed
3169 to a nop, make sure this becomes (or already is) a
3170 setlos, not setlo. */
3171 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3173 insn |= (unsigned long)0x00080000;
3174 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3177 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3178 r_type = R_FRV_GOTTLSOFFLO;
3179 howto = elf32_frv_howto_table + r_type;
3180 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3185 case R_FRV_TLSDESC_RELAX:
3186 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3188 /* Is this an ldd instruction? */
3189 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3191 r = info->callbacks->warning
3193 _("R_FRV_TLSDESC_RELAX not applied to an ldd instruction"),
3194 name, input_bfd, input_section, rel->r_offset);
3198 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3199 relocation + rel->r_addend)
3200 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3203 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3204 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3205 Preserve the packing bit. */
3206 insn = (insn & (unsigned long)0x80000000)
3207 | ((insn + (unsigned long)0x02000000)
3208 & (unsigned long)0x7e000000);
3209 insn |= (unsigned long)0x00fc0000;
3210 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3212 r_type = R_FRV_TLSMOFFLO;
3213 howto = elf32_frv_howto_table + r_type;
3214 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3217 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3218 relocation + rel->r_addend))
3220 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3221 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3222 Preserve the packing bit. */
3223 insn = (insn & (unsigned long)0x80000000)
3224 | ((insn + (unsigned long)0x02000000)
3225 & (unsigned long)0x7e000000);
3226 insn |= (unsigned long)0x00f80000;
3227 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3229 r_type = R_FRV_TLSMOFFHI;
3230 howto = elf32_frv_howto_table + r_type;
3231 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3234 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3235 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3237 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3238 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3239 Preserve the packing bit. */
3240 insn = (insn & (unsigned long)0x8003f000)
3241 | (unsigned long)0x00c80000
3242 | ((insn + (unsigned long)0x02000000)
3243 & (unsigned long)0x7e000000);
3244 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3246 r_type = R_FRV_GOTTLSOFF12;
3247 howto = elf32_frv_howto_table + r_type;
3248 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3251 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3253 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3254 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3255 Preserve the packing bit. */
3256 insn = (insn & (unsigned long)0x81ffffbf)
3257 | ((insn + (unsigned long)0x02000000)
3258 & (unsigned long)0x7e000000);
3259 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3261 /* #tlsoff(symbol+offset) is just a relaxation
3262 annotation, so there's nothing left to
3269 case R_FRV_GETTLSOFF_RELAX:
3270 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3272 /* Is this a calll or callil instruction? */
3273 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3275 r = info->callbacks->warning
3277 _("R_FRV_GETTLSOFF_RELAX"
3278 " not applied to a calll instruction"),
3279 name, input_bfd, input_section, rel->r_offset);
3283 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3284 relocation + rel->r_addend)
3285 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3288 /* Replace calll with a nop. Preserve the packing bit. */
3289 insn &= (unsigned long)0x80000000;
3290 insn |= (unsigned long)0x00880000;
3291 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3293 /* Nothing to relocate. */
3297 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3298 relocation + rel->r_addend))
3300 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3301 Preserve the packing bit. */
3302 insn &= (unsigned long)0x80000000;
3303 insn |= (unsigned long)0x12f40000;
3304 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3306 r_type = R_FRV_TLSMOFFLO;
3307 howto = elf32_frv_howto_table + r_type;
3308 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3311 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3313 /* Replace calll with a nop. Preserve the packing bit. */
3314 insn &= (unsigned long)0x80000000;
3315 insn |= (unsigned long)0x00880000;
3316 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3318 /* Nothing to relocate. */
3324 case R_FRV_GOTTLSOFF12:
3325 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3327 /* Is this an ldi instruction? */
3328 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3330 r = info->callbacks->warning
3332 _("R_FRV_GOTTLSOFF12 not applied to an ldi instruction"),
3333 name, input_bfd, input_section, rel->r_offset);
3337 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3338 relocation + rel->r_addend))
3340 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3341 with setlos #tlsmofflo(symbol+offset), grC.
3342 Preserve the packing bit. */
3343 insn &= (unsigned long)0xfe000000;
3344 insn |= (unsigned long)0x00fc0000;
3345 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3347 r_type = R_FRV_TLSMOFFLO;
3348 howto = elf32_frv_howto_table + r_type;
3349 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3354 case R_FRV_GOTTLSOFFHI:
3355 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3357 /* Is this a sethi instruction? */
3358 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3360 r = info->callbacks->warning
3362 _("R_FRV_GOTTLSOFFHI not applied to a sethi instruction"),
3363 name, input_bfd, input_section, rel->r_offset);
3367 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3368 relocation + rel->r_addend)
3369 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3370 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3372 /* Replace sethi with a nop. Preserve the packing bit. */
3373 insn &= (unsigned long)0x80000000;
3374 insn |= (unsigned long)0x00880000;
3375 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3377 /* Nothing to relocate. */
3383 case R_FRV_GOTTLSOFFLO:
3384 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3386 /* Is this a setlo or setlos instruction? */
3387 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3389 r = info->callbacks->warning
3391 _("R_FRV_GOTTLSOFFLO"
3392 " not applied to a setlo or setlos instruction"),
3393 name, input_bfd, input_section, rel->r_offset);
3397 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3398 relocation + rel->r_addend)
3399 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3400 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3402 /* Replace setlo/setlos with a nop. Preserve the
3404 insn &= (unsigned long)0x80000000;
3405 insn |= (unsigned long)0x00880000;
3406 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3408 /* Nothing to relocate. */
3414 case R_FRV_TLSOFF_RELAX:
3415 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3417 /* Is this an ld instruction? */
3418 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3420 r = info->callbacks->warning
3422 _("R_FRV_TLSOFF_RELAX not applied to an ld instruction"),
3423 name, input_bfd, input_section, rel->r_offset);
3427 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3428 relocation + rel->r_addend))
3430 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3431 with setlos #tlsmofflo(symbol+offset), grC.
3432 Preserve the packing bit. */
3433 insn &= (unsigned long)0xfe000000;
3434 insn |= (unsigned long)0x00fc0000;
3435 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3437 r_type = R_FRV_TLSMOFFLO;
3438 howto = elf32_frv_howto_table + r_type;
3439 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3442 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3443 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3445 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3446 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3447 Preserve the packing bit. */
3448 insn = (insn & (unsigned long)0xfe03f000)
3449 | (unsigned long)0x00c80000;;
3450 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3452 r_type = R_FRV_GOTTLSOFF12;
3453 howto = elf32_frv_howto_table + r_type;
3454 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3459 case R_FRV_TLSMOFFHI:
3460 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3462 /* Is this a sethi instruction? */
3463 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3465 r = info->callbacks->warning
3467 _("R_FRV_TLSMOFFHI not applied to a sethi instruction"),
3468 name, input_bfd, input_section, rel->r_offset);
3472 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3475 /* Replace sethi with a nop. Preserve the packing bit. */
3476 insn &= (unsigned long)0x80000000;
3477 insn |= (unsigned long)0x00880000;
3478 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3480 /* Nothing to relocate. */
3486 case R_FRV_TLSMOFFLO:
3487 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3489 /* Is this a setlo or setlos instruction? */
3490 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3492 r = info->callbacks->warning
3495 " not applied to a setlo or setlos instruction"),
3496 name, input_bfd, input_section, rel->r_offset);
3500 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3502 /* If the corresponding sethi (if it exists) decayed
3503 to a nop, make sure this becomes (or already is) a
3504 setlos, not setlo. */
3506 insn |= (unsigned long)0x00080000;
3507 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3513 There's nothing to relax in these:
3529 check_segment[0] = isec_segment;
3530 if (! IS_FDPIC (output_bfd))
3531 check_segment[1] = isec_segment;
3532 else if (picrel->plt)
3534 relocation = frvfdpic_plt_section (info)->output_section->vma
3535 + frvfdpic_plt_section (info)->output_offset
3536 + picrel->plt_entry;
3537 check_segment[1] = plt_segment;
3539 /* We don't want to warn on calls to undefined weak symbols,
3540 as calls to them must be protected by non-NULL tests
3541 anyway, and unprotected calls would invoke undefined
3543 else if (picrel->symndx == -1
3544 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3545 check_segment[1] = check_segment[0];
3547 check_segment[1] = sec
3548 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3555 relocation = picrel->got_entry;
3556 check_segment[0] = check_segment[1] = got_segment;
3559 case R_FRV_FUNCDESC_GOT12:
3560 case R_FRV_FUNCDESC_GOTHI:
3561 case R_FRV_FUNCDESC_GOTLO:
3562 relocation = picrel->fdgot_entry;
3563 check_segment[0] = check_segment[1] = got_segment;
3566 case R_FRV_GOTOFFHI:
3567 case R_FRV_GOTOFF12:
3568 case R_FRV_GOTOFFLO:
3569 relocation -= frvfdpic_got_section (info)->output_section->vma
3570 + frvfdpic_got_section (info)->output_offset
3571 + frvfdpic_got_initial_offset (info);
3572 check_segment[0] = got_segment;
3573 check_segment[1] = sec
3574 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3578 case R_FRV_FUNCDESC_GOTOFF12:
3579 case R_FRV_FUNCDESC_GOTOFFHI:
3580 case R_FRV_FUNCDESC_GOTOFFLO:
3581 relocation = picrel->fd_entry;
3582 check_segment[0] = check_segment[1] = got_segment;
3585 case R_FRV_FUNCDESC:
3588 bfd_vma addend = rel->r_addend;
3590 if (! (h && h->root.type == bfd_link_hash_undefweak
3591 && FRVFDPIC_SYM_LOCAL (info, h)))
3593 /* If the symbol is dynamic and there may be dynamic
3594 symbol resolution because we are or are linked with a
3595 shared library, emit a FUNCDESC relocation such that
3596 the dynamic linker will allocate the function
3597 descriptor. If the symbol needs a non-local function
3598 descriptor but binds locally (e.g., its visibility is
3599 protected, emit a dynamic relocation decayed to
3601 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3602 && FRVFDPIC_SYM_LOCAL (info, h)
3603 && !(info->executable && !info->pie))
3605 dynindx = elf_section_data (h->root.u.def.section
3606 ->output_section)->dynindx;
3607 addend += h->root.u.def.section->output_offset
3608 + h->root.u.def.value;
3610 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3614 info->callbacks->warning
3615 (info, _("R_FRV_FUNCDESC references dynamic symbol with nonzero addend"),
3616 name, input_bfd, input_section, rel->r_offset);
3619 dynindx = h->dynindx;
3623 /* Otherwise, we know we have a private function
3624 descriptor, so reference it directly. */
3625 BFD_ASSERT (picrel->privfd);
3627 dynindx = elf_section_data (frvfdpic_got_section (info)
3628 ->output_section)->dynindx;
3629 addend = frvfdpic_got_section (info)->output_offset
3630 + frvfdpic_got_initial_offset (info)
3634 /* If there is room for dynamic symbol resolution, emit
3635 the dynamic relocation. However, if we're linking an
3636 executable at a fixed location, we won't have emitted a
3637 dynamic symbol entry for the got section, so idx will
3638 be zero, which means we can and should compute the
3639 address of the private descriptor ourselves. */
3640 if (info->executable && !info->pie
3641 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3643 addend += frvfdpic_got_section (info)->output_section->vma;
3644 if ((bfd_get_section_flags (output_bfd,
3645 input_section->output_section)
3646 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3650 if (_frvfdpic_osec_readonly_p (output_bfd,
3654 info->callbacks->warning
3656 _("cannot emit fixups in read-only section"),
3657 name, input_bfd, input_section, rel->r_offset);
3661 offset = _bfd_elf_section_offset
3663 input_section, rel->r_offset);
3665 if (offset != (bfd_vma)-1)
3666 _frvfdpic_add_rofixup (output_bfd,
3667 frvfdpic_gotfixup_section
3669 offset + input_section
3670 ->output_section->vma
3671 + input_section->output_offset,
3675 else if ((bfd_get_section_flags (output_bfd,
3676 input_section->output_section)
3677 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3681 if (_frvfdpic_osec_readonly_p (output_bfd,
3685 info->callbacks->warning
3687 _("cannot emit dynamic relocations in read-only section"),
3688 name, input_bfd, input_section, rel->r_offset);
3692 offset = _bfd_elf_section_offset
3694 input_section, rel->r_offset);
3696 if (offset != (bfd_vma)-1)
3697 _frvfdpic_add_dyn_reloc (output_bfd,
3698 frvfdpic_gotrel_section (info),
3699 offset + input_section
3700 ->output_section->vma
3701 + input_section->output_offset,
3702 r_type, dynindx, addend, picrel);
3705 addend += frvfdpic_got_section (info)->output_section->vma;
3708 /* We want the addend in-place because dynamic
3709 relocations are REL. Setting relocation to it should
3710 arrange for it to be installed. */
3711 relocation = addend - rel->r_addend;
3713 check_segment[0] = check_segment[1] = got_segment;
3717 if (! IS_FDPIC (output_bfd))
3719 check_segment[0] = check_segment[1] = -1;
3723 case R_FRV_FUNCDESC_VALUE:
3726 bfd_vma addend = rel->r_addend;
3728 /* If the symbol is dynamic but binds locally, use
3730 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3732 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3734 info->callbacks->warning
3735 (info, _("R_FRV_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
3736 name, input_bfd, input_section, rel->r_offset);
3739 dynindx = h->dynindx;
3744 addend += h->root.u.def.value;
3746 addend += sym->st_value;
3748 addend += osec->output_offset;
3749 if (osec && osec->output_section
3750 && ! bfd_is_abs_section (osec->output_section)
3751 && ! bfd_is_und_section (osec->output_section))
3752 dynindx = elf_section_data (osec->output_section)->dynindx;
3757 /* If we're linking an executable at a fixed address, we
3758 can omit the dynamic relocation as long as the symbol
3759 is defined in the current link unit (which is implied
3760 by its output section not being NULL). */
3761 if (info->executable && !info->pie
3762 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3765 addend += osec->output_section->vma;
3766 if (IS_FDPIC (input_bfd)
3767 && (bfd_get_section_flags (output_bfd,
3768 input_section->output_section)
3769 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3771 if (_frvfdpic_osec_readonly_p (output_bfd,
3775 info->callbacks->warning
3777 _("cannot emit fixups in read-only section"),
3778 name, input_bfd, input_section, rel->r_offset);
3781 if (!h || h->root.type != bfd_link_hash_undefweak)
3783 bfd_vma offset = _bfd_elf_section_offset
3785 input_section, rel->r_offset);
3787 if (offset != (bfd_vma)-1)
3789 _frvfdpic_add_rofixup (output_bfd,
3790 frvfdpic_gotfixup_section
3792 offset + input_section
3793 ->output_section->vma
3794 + input_section->output_offset,
3796 if (r_type == R_FRV_FUNCDESC_VALUE)
3797 _frvfdpic_add_rofixup
3799 frvfdpic_gotfixup_section (info),
3801 + input_section->output_section->vma
3802 + input_section->output_offset + 4, picrel);
3809 if ((bfd_get_section_flags (output_bfd,
3810 input_section->output_section)
3811 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3815 if (_frvfdpic_osec_readonly_p (output_bfd,
3819 info->callbacks->warning
3821 _("cannot emit dynamic relocations in read-only section"),
3822 name, input_bfd, input_section, rel->r_offset);
3826 offset = _bfd_elf_section_offset
3828 input_section, rel->r_offset);
3830 if (offset != (bfd_vma)-1)
3831 _frvfdpic_add_dyn_reloc (output_bfd,
3832 frvfdpic_gotrel_section (info),
3833 offset + input_section
3834 ->output_section->vma
3835 + input_section->output_offset,
3836 r_type, dynindx, addend, picrel);
3839 addend += osec->output_section->vma;
3840 /* We want the addend in-place because dynamic
3841 relocations are REL. Setting relocation to it
3842 should arrange for it to be installed. */
3843 relocation = addend - rel->r_addend;
3846 if (r_type == R_FRV_FUNCDESC_VALUE)
3848 /* If we've omitted the dynamic relocation, just emit
3849 the fixed addresses of the symbol and of the local
3851 if (info->executable && !info->pie
3852 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3853 bfd_put_32 (output_bfd,
3854 frvfdpic_got_section (info)->output_section->vma
3855 + frvfdpic_got_section (info)->output_offset
3856 + frvfdpic_got_initial_offset (info),
3857 contents + rel->r_offset + 4);
3859 /* A function descriptor used for lazy or local
3860 resolving is initialized such that its high word
3861 contains the output section index in which the
3862 PLT entries are located, and the low word
3863 contains the offset of the lazy PLT entry entry
3864 point into that section. */
3865 bfd_put_32 (output_bfd,
3866 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3868 : _frvfdpic_osec_to_segment (output_bfd,
3871 contents + rel->r_offset + 4);
3874 check_segment[0] = check_segment[1] = got_segment;
3878 case R_FRV_GPRELU12:
3882 check_segment[0] = gprel_segment;
3883 check_segment[1] = sec
3884 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3888 case R_FRV_GETTLSOFF:
3889 relocation = frvfdpic_plt_section (info)->output_section->vma
3890 + frvfdpic_plt_section (info)->output_offset
3891 + picrel->tlsplt_entry;
3892 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3893 && picrel->tlsdesc_entry);
3894 check_segment[0] = isec_segment;
3895 check_segment[1] = plt_segment;
3898 case R_FRV_GOTTLSDESC12:
3899 case R_FRV_GOTTLSDESCHI:
3900 case R_FRV_GOTTLSDESCLO:
3901 BFD_ASSERT (picrel->tlsdesc_entry);
3902 relocation = picrel->tlsdesc_entry;
3903 check_segment[0] = tls_segment;
3904 check_segment[1] = sec
3905 && ! bfd_is_abs_section (sec)
3906 && ! bfd_is_und_section (sec)
3907 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3911 case R_FRV_TLSMOFF12:
3912 case R_FRV_TLSMOFFHI:
3913 case R_FRV_TLSMOFFLO:
3915 check_segment[0] = tls_segment;
3917 check_segment[1] = -1;
3918 else if (bfd_is_abs_section (sec)
3919 || bfd_is_und_section (sec))
3922 check_segment[1] = tls_segment;
3924 else if (sec->output_section)
3926 relocation -= tls_biased_base (info);
3928 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3931 check_segment[1] = -1;
3934 case R_FRV_GOTTLSOFF12:
3935 case R_FRV_GOTTLSOFFHI:
3936 case R_FRV_GOTTLSOFFLO:
3937 BFD_ASSERT (picrel->tlsoff_entry);
3938 relocation = picrel->tlsoff_entry;
3939 check_segment[0] = tls_segment;
3940 check_segment[1] = sec
3941 && ! bfd_is_abs_section (sec)
3942 && ! bfd_is_und_section (sec)
3943 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3947 case R_FRV_TLSDESC_VALUE:
3949 /* These shouldn't be present in input object files. */
3950 check_segment[0] = check_segment[1] = isec_segment;
3953 case R_FRV_TLSDESC_RELAX:
3954 case R_FRV_GETTLSOFF_RELAX:
3955 case R_FRV_TLSOFF_RELAX:
3956 /* These are just annotations for relaxation, nothing to do
3961 check_segment[0] = isec_segment;
3962 check_segment[1] = sec
3963 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3968 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3970 /* If you take this out, remove the #error from fdpic-static-6.d
3971 in the ld testsuite. */
3972 /* This helps catch problems in GCC while we can't do more
3973 than static linking. The idea is to test whether the
3974 input file basename is crt0.o only once. */
3975 if (silence_segment_error == 1)
3976 silence_segment_error =
3977 (strlen (input_bfd->filename) == 6
3978 && strcmp (input_bfd->filename, "crt0.o") == 0)
3979 || (strlen (input_bfd->filename) > 6
3980 && strcmp (input_bfd->filename
3981 + strlen (input_bfd->filename) - 7,
3984 if (!silence_segment_error
3985 /* We don't want duplicate errors for undefined
3987 && !(picrel && picrel->symndx == -1
3988 && picrel->d.h->root.type == bfd_link_hash_undefined))
3990 if (info->shared || info->pie)
3991 (*_bfd_error_handler)
3992 (_("%B(%A+0x%lx): reloc against `%s': %s"),
3993 input_bfd, input_section, (long)rel->r_offset, name,
3994 _("relocation references a different segment"));
3996 info->callbacks->warning
3998 _("relocation references a different segment"),
3999 name, input_bfd, input_section, rel->r_offset);
4001 if (!silence_segment_error && (info->shared || info->pie))
4003 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
4008 case R_FRV_GOTOFFHI:
4009 case R_FRV_TLSMOFFHI:
4010 /* We need the addend to be applied before we shift the
4012 relocation += rel->r_addend;
4015 case R_FRV_FUNCDESC_GOTHI:
4016 case R_FRV_FUNCDESC_GOTOFFHI:
4017 case R_FRV_GOTTLSOFFHI:
4018 case R_FRV_GOTTLSDESCHI:
4023 case R_FRV_FUNCDESC_GOTLO:
4024 case R_FRV_GOTOFFLO:
4025 case R_FRV_FUNCDESC_GOTOFFLO:
4026 case R_FRV_GOTTLSOFFLO:
4027 case R_FRV_GOTTLSDESCLO:
4028 case R_FRV_TLSMOFFLO:
4029 relocation &= 0xffff;
4039 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
4043 /* When referencing a GOT entry, a function descriptor or a
4044 PLT, we don't want the addend to apply to the reference,
4045 but rather to the referenced symbol. The actual entry
4046 will have already been created taking the addend into
4047 account, so cancel it out here. */
4051 case R_FRV_FUNCDESC_GOT12:
4052 case R_FRV_FUNCDESC_GOTHI:
4053 case R_FRV_FUNCDESC_GOTLO:
4054 case R_FRV_FUNCDESC_GOTOFF12:
4055 case R_FRV_FUNCDESC_GOTOFFHI:
4056 case R_FRV_FUNCDESC_GOTOFFLO:
4057 case R_FRV_GETTLSOFF:
4058 case R_FRV_GOTTLSDESC12:
4059 case R_FRV_GOTTLSDESCHI:
4060 case R_FRV_GOTTLSDESCLO:
4061 case R_FRV_GOTTLSOFF12:
4062 case R_FRV_GOTTLSOFFHI:
4063 case R_FRV_GOTTLSOFFLO:
4064 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
4065 here, since we do want to apply the addend to the others.
4066 Note that we've applied the addend to GOTOFFHI before we
4067 shifted it right. */
4068 case R_FRV_GOTOFFHI:
4069 case R_FRV_TLSMOFFHI:
4070 relocation -= rel->r_addend;
4077 if (r_type == R_FRV_HI16)
4078 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
4080 else if (r_type == R_FRV_LO16)
4081 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
4083 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4084 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4085 contents, relocation);
4087 else if (r_type == R_FRV_GPREL12)
4088 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4089 contents, relocation);
4091 else if (r_type == R_FRV_GPRELU12)
4092 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4093 contents, relocation);
4095 else if (r_type == R_FRV_GPRELLO)
4096 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4097 contents, relocation);
4099 else if (r_type == R_FRV_GPRELHI)
4100 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4101 contents, relocation);
4103 else if (r_type == R_FRV_TLSOFF
4104 || r_type == R_FRV_TLSDESC_VALUE)
4105 r = bfd_reloc_notsupported;
4108 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4111 if (r != bfd_reloc_ok)
4113 const char * msg = (const char *) NULL;
4117 case bfd_reloc_overflow:
4118 r = info->callbacks->reloc_overflow
4119 (info, (h ? &h->root : NULL), name, howto->name,
4120 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4123 case bfd_reloc_undefined:
4124 r = info->callbacks->undefined_symbol
4125 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4128 case bfd_reloc_outofrange:
4129 msg = _("internal error: out of range error");
4132 case bfd_reloc_notsupported:
4133 msg = _("internal error: unsupported relocation error");
4136 case bfd_reloc_dangerous:
4137 msg = _("internal error: dangerous relocation");
4141 msg = _("internal error: unknown error");
4147 (*_bfd_error_handler)
4148 (_("%B(%A+0x%lx): reloc against `%s': %s"),
4149 input_bfd, input_section, (long)rel->r_offset, name, msg);
4161 /* Return the section that should be marked against GC for a given
4165 elf32_frv_gc_mark_hook (asection *sec,
4166 struct bfd_link_info *info,
4167 Elf_Internal_Rela *rel,
4168 struct elf_link_hash_entry *h,
4169 Elf_Internal_Sym *sym)
4172 switch (ELF32_R_TYPE (rel->r_info))
4174 case R_FRV_GNU_VTINHERIT:
4175 case R_FRV_GNU_VTENTRY:
4179 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4182 /* Hook called by the linker routine which adds symbols from an object
4183 file. We use it to put .comm items in .scomm, and not .comm. */
4186 elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
4188 struct bfd_link_info *info;
4189 Elf_Internal_Sym *sym;
4190 const char **namep ATTRIBUTE_UNUSED;
4191 flagword *flagsp ATTRIBUTE_UNUSED;
4195 if (sym->st_shndx == SHN_COMMON
4196 && !info->relocatable
4197 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4199 /* Common symbols less than or equal to -G nn bytes are
4200 automatically put into .sbss. */
4202 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4206 scomm = bfd_make_section_with_flags (abfd, ".scommon",
4209 | SEC_LINKER_CREATED));
4215 *valp = sym->st_size;
4221 /* We need dynamic symbols for every section, since segments can
4222 relocate independently. */
4224 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4225 struct bfd_link_info *info
4227 asection *p ATTRIBUTE_UNUSED)
4229 switch (elf_section_data (p)->this_hdr.sh_type)
4233 /* If sh_type is yet undecided, assume it could be
4234 SHT_PROGBITS/SHT_NOBITS. */
4238 /* There shouldn't be section relative relocations
4239 against any other section. */
4245 /* Create a .got section, as well as its additional info field. This
4246 is almost entirely copied from
4247 elflink.c:_bfd_elf_create_got_section(). */
4250 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4252 flagword flags, pltflags;
4254 struct elf_link_hash_entry *h;
4255 struct bfd_link_hash_entry *bh;
4256 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4260 /* This function may be called more than once. */
4261 s = bfd_get_section_by_name (abfd, ".got");
4262 if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
4265 /* Machine specific: although pointers are 32-bits wide, we want the
4266 GOT to be aligned to a 64-bit boundary, such that function
4267 descriptors in it can be accessed with 64-bit loads and
4271 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4272 | SEC_LINKER_CREATED);
4275 s = bfd_make_section_with_flags (abfd, ".got", flags);
4277 || !bfd_set_section_alignment (abfd, s, ptralign))
4280 if (bed->want_got_plt)
4282 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
4284 || !bfd_set_section_alignment (abfd, s, ptralign))
4288 if (bed->want_got_sym)
4290 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4291 (or .got.plt) section. We don't do this in the linker script
4292 because we don't want to define the symbol if we are not creating
4293 a global offset table. */
4294 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4295 elf_hash_table (info)->hgot = h;
4299 /* Machine-specific: we want the symbol for executables as
4301 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4305 /* The first bit of the global offset table is the header. */
4306 s->size += bed->got_header_size;
4308 /* This is the machine-specific part. Create and initialize section
4309 data for the got. */
4310 if (IS_FDPIC (abfd))
4312 frvfdpic_got_section (info) = s;
4313 frvfdpic_relocs_info (info) = htab_try_create (1,
4314 frvfdpic_relocs_info_hash,
4315 frvfdpic_relocs_info_eq,
4317 if (! frvfdpic_relocs_info (info))
4320 s = bfd_make_section_with_flags (abfd, ".rel.got",
4321 (flags | SEC_READONLY));
4323 || ! bfd_set_section_alignment (abfd, s, 2))
4326 frvfdpic_gotrel_section (info) = s;
4328 /* Machine-specific. */
4329 s = bfd_make_section_with_flags (abfd, ".rofixup",
4330 (flags | SEC_READONLY));
4332 || ! bfd_set_section_alignment (abfd, s, 2))
4335 frvfdpic_gotfixup_section (info) = s;
4342 flags = BSF_GLOBAL | BSF_WEAK;
4345 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
4346 turns out that we're linking with a different linker script, the
4347 linker script will override it. */
4349 if (!(_bfd_generic_link_add_one_symbol
4350 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4351 bed->collect, &bh)))
4353 h = (struct elf_link_hash_entry *) bh;
4355 h->type = STT_OBJECT;
4356 /* h->other = STV_HIDDEN; */ /* Should we? */
4358 /* Machine-specific: we want the symbol for executables as well. */
4359 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4362 if (!IS_FDPIC (abfd))
4365 /* FDPIC supports Thread Local Storage, and this may require a
4366 procedure linkage table for TLS PLT entries. */
4368 /* This is mostly copied from
4369 elflink.c:_bfd_elf_create_dynamic_sections(). */
4372 pltflags |= SEC_CODE;
4373 if (bed->plt_not_loaded)
4374 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4375 if (bed->plt_readonly)
4376 pltflags |= SEC_READONLY;
4378 s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
4380 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4382 /* FRV-specific: remember it. */
4383 frvfdpic_plt_section (info) = s;
4385 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4387 if (bed->want_plt_sym)
4389 h = _bfd_elf_define_linkage_sym (abfd, info, s,
4390 "_PROCEDURE_LINKAGE_TABLE_");
4391 elf_hash_table (info)->hplt = h;
4396 /* FRV-specific: we want rel relocations for the plt. */
4397 s = bfd_make_section_with_flags (abfd, ".rel.plt",
4398 flags | SEC_READONLY);
4400 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4402 /* FRV-specific: remember it. */
4403 frvfdpic_pltrel_section (info) = s;
4408 /* Make sure the got and plt sections exist, and that our pointers in
4409 the link hash table point to them. */
4412 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4414 /* This is mostly copied from
4415 elflink.c:_bfd_elf_create_dynamic_sections(). */
4418 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4420 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4421 | SEC_LINKER_CREATED);
4423 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4424 .rel[a].bss sections. */
4426 /* FRV-specific: we want to create the GOT and the PLT in the FRV
4428 if (! _frv_create_got_section (abfd, info))
4431 /* FRV-specific: make sure we created everything we wanted. */
4432 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4433 && frvfdpic_gotfixup_section (info)
4434 && frvfdpic_plt_section (info)
4435 && frvfdpic_pltrel_section (info));
4437 if (bed->want_dynbss)
4439 /* The .dynbss section is a place to put symbols which are defined
4440 by dynamic objects, are referenced by regular objects, and are
4441 not functions. We must allocate space for them in the process
4442 image and use a R_*_COPY reloc to tell the dynamic linker to
4443 initialize them at run time. The linker script puts the .dynbss
4444 section into the .bss section of the final image. */
4445 s = bfd_make_section_with_flags (abfd, ".dynbss",
4446 SEC_ALLOC | SEC_LINKER_CREATED);
4450 /* The .rel[a].bss section holds copy relocs. This section is not
4451 normally needed. We need to create it here, though, so that the
4452 linker will map it to an output section. We can't just create it
4453 only if we need it, because we will not know whether we need it
4454 until we have seen all the input files, and the first time the
4455 main linker code calls BFD after examining all the input files
4456 (size_dynamic_sections) the input sections have already been
4457 mapped to the output sections. If the section turns out not to
4458 be needed, we can discard it later. We will never need this
4459 section when generating a shared object, since they do not use
4463 s = bfd_make_section_with_flags (abfd,
4464 (bed->default_use_rela_p
4465 ? ".rela.bss" : ".rel.bss"),
4466 flags | SEC_READONLY);
4468 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4476 /* Compute the total GOT and PLT size required by each symbol in each
4477 range. Symbols may require up to 4 words in the GOT: an entry
4478 pointing to the symbol, an entry pointing to its function
4479 descriptor, and a private function descriptors taking two
4483 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4484 struct _frvfdpic_dynamic_got_info *dinfo)
4486 /* Allocate space for a GOT entry pointing to the symbol. */
4489 else if (entry->gotlos)
4491 else if (entry->gothilo)
4492 dinfo->gothilo += 4;
4497 /* Allocate space for a GOT entry pointing to the function
4501 else if (entry->fdgotlos)
4503 else if (entry->fdgothilo)
4504 dinfo->gothilo += 4;
4509 /* Decide whether we need a PLT entry, a function descriptor in the
4510 GOT, and a lazy PLT entry for this symbol. */
4511 entry->plt = entry->call
4512 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4513 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4514 entry->privfd = entry->plt
4515 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4516 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4517 && (entry->symndx != -1
4518 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4519 entry->lazyplt = entry->privfd
4520 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4521 && ! (dinfo->info->flags & DF_BIND_NOW)
4522 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4524 /* Allocate space for a function descriptor. */
4525 if (entry->fdgoff12)
4527 else if (entry->fdgofflos)
4529 else if (entry->privfd && entry->plt)
4531 else if (entry->privfd)
4541 /* Compute the total GOT size required by each TLS symbol in each
4542 range. Symbols may require up to 5 words in the GOT: an entry
4543 holding the TLS offset for the symbol, and an entry with a full TLS
4544 descriptor taking 4 words. */
4547 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4548 struct _frvfdpic_dynamic_got_info *dinfo,
4549 bfd_boolean subtract)
4551 const int l = subtract ? -1 : 1;
4553 /* Allocate space for a GOT entry with the TLS offset of the
4555 if (entry->tlsoff12)
4556 dinfo->got12 += 4 * l;
4557 else if (entry->tlsofflos)
4558 dinfo->gotlos += 4 * l;
4559 else if (entry->tlsoffhilo)
4560 dinfo->gothilo += 4 * l;
4562 entry->relocstlsoff -= l;
4563 entry->relocstlsoff += l;
4565 /* If there's any TLSOFF relocation, mark the output file as not
4566 suitable for dlopening. This mark will remain even if we relax
4567 all such relocations, but this is not a problem, since we'll only
4568 do so for executables, and we definitely don't want anyone
4569 dlopening executables. */
4570 if (entry->relocstlsoff)
4571 dinfo->info->flags |= DF_STATIC_TLS;
4573 /* Allocate space for a TLS descriptor. */
4574 if (entry->tlsdesc12)
4575 dinfo->tlsd12 += 8 * l;
4576 else if (entry->tlsdesclos)
4577 dinfo->tlsdlos += 8 * l;
4578 else if (entry->tlsplt)
4579 dinfo->tlsdplt += 8 * l;
4580 else if (entry->tlsdeschilo)
4581 dinfo->tlsdhilo += 8 * l;
4583 entry->relocstlsd -= l;
4584 entry->relocstlsd += l;
4587 /* Compute the number of dynamic relocations and fixups that a symbol
4588 requires, and add (or subtract) from the grand and per-symbol
4592 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4593 struct _frvfdpic_dynamic_got_info *dinfo,
4594 bfd_boolean subtract)
4596 bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4598 if (!dinfo->info->executable || dinfo->info->pie)
4600 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4601 + entry->relocstlsd;
4603 /* In the executable, TLS relocations to symbols that bind
4604 locally (including those that resolve to global TLS offsets)
4605 are resolved immediately, without any need for fixups or
4606 dynamic relocations. In shared libraries, however, we must
4607 emit dynamic relocations even for local symbols, because we
4608 don't know the module id the library is going to get at
4609 run-time, nor its TLS base offset. */
4610 if (!dinfo->info->executable
4611 || (entry->symndx == -1
4612 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4613 relocs += entry->relocstlsoff;
4617 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4619 if (entry->symndx != -1
4620 || entry->d.h->root.type != bfd_link_hash_undefweak)
4621 fixups += entry->relocs32 + 2 * entry->relocsfdv;
4622 fixups += entry->relocstlsd;
4623 tlsrets += entry->relocstlsd;
4627 relocs += entry->relocs32 + entry->relocsfdv
4628 + entry->relocstlsoff + entry->relocstlsd;
4631 if (entry->symndx != -1
4632 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4634 if (entry->symndx != -1
4635 || entry->d.h->root.type != bfd_link_hash_undefweak)
4636 fixups += entry->relocsfd;
4639 relocs += entry->relocsfd;
4646 tlsrets = - tlsrets;
4649 entry->dynrelocs += relocs;
4650 entry->fixups += fixups;
4651 dinfo->relocs += relocs;
4652 dinfo->fixups += fixups;
4653 dinfo->tls_ret_refs += tlsrets;
4656 /* Look for opportunities to relax TLS relocations. We can assume
4657 we're linking the main executable or a static-tls library, since
4658 otherwise we wouldn't have got here. When relaxing, we have to
4659 first undo any previous accounting of TLS uses of fixups, dynamic
4660 relocations, GOT and PLT entries. */
4663 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4664 struct _frvfdpic_dynamic_got_info *dinfo,
4665 bfd_boolean relaxing)
4667 bfd_boolean changed = ! relaxing;
4669 BFD_ASSERT (dinfo->info->executable
4670 || (dinfo->info->flags & DF_STATIC_TLS));
4672 if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4676 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4677 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4681 /* When linking an executable, we can always decay GOTTLSDESC to
4682 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4683 When linking a static-tls shared library, using TLSMOFF is
4684 not an option, but we can still use GOTTLSOFF. When decaying
4685 to GOTTLSOFF, we must keep the GOT entry in range. We know
4686 it has to fit because we'll be trading the 4 words of hte TLS
4687 descriptor for a single word in the same range. */
4688 if (! dinfo->info->executable
4689 || (entry->symndx == -1
4690 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4692 entry->tlsoff12 |= entry->tlsdesc12;
4693 entry->tlsofflos |= entry->tlsdesclos;
4694 entry->tlsoffhilo |= entry->tlsdeschilo;
4697 entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4700 /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4701 main executable. We have to check whether the symbol's TLSOFF is
4702 in range for a setlos. For symbols with a hash entry, we can
4703 determine exactly what to do; for others locals, we don't have
4704 addresses handy, so we use the size of the TLS section as an
4705 approximation. If we get it wrong, we'll retain a GOT entry
4706 holding the TLS offset (without dynamic relocations or fixups),
4707 but we'll still optimize away the loads from it. Since TLS sizes
4708 are generally very small, it's probably not worth attempting to
4709 do better than this. */
4711 || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4712 && dinfo->info->executable && relaxing
4713 && ((entry->symndx == -1
4714 && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4715 /* The above may hold for an undefweak TLS symbol, so make
4716 sure we don't have this case before accessing def.value
4718 && (entry->d.h->root.type == bfd_link_hash_undefweak
4719 || (bfd_vma)(entry->d.h->root.u.def.value
4720 + (entry->d.h->root.u.def.section
4721 ->output_section->vma)
4722 + entry->d.h->root.u.def.section->output_offset
4724 - tls_biased_base (dinfo->info)
4725 + 32768) < (bfd_vma)65536))
4726 || (entry->symndx != -1
4727 && (elf_hash_table (dinfo->info)->tls_sec->size
4728 + abs (entry->addend) < 32768 + FRVFDPIC_TLS_BIAS))))
4732 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4733 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4738 entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4741 /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4742 have a #gottlsoff12 relocation for this entry, or if we can fit
4743 one more in the 12-bit (and 16-bit) ranges. */
4747 && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4748 && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4749 + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4750 <= 65536 - 12 - 4))))
4754 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4755 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4759 entry->tlsoff12 = 1;
4765 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4766 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4772 /* Compute the total GOT and PLT size required by each symbol in each range. *
4773 Symbols may require up to 4 words in the GOT: an entry pointing to
4774 the symbol, an entry pointing to its function descriptor, and a
4775 private function descriptors taking two words. */
4778 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4780 struct frvfdpic_relocs_info *entry = *entryp;
4781 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4783 _frvfdpic_count_nontls_entries (entry, dinfo);
4785 if (dinfo->info->executable || (dinfo->info->flags & DF_STATIC_TLS))
4786 _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4789 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4790 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4796 /* Determine the positive and negative ranges to be used by each
4797 offset range in the GOT. FDCUR and CUR, that must be aligned to a
4798 double-word boundary, are the minimum (negative) and maximum
4799 (positive) GOT offsets already used by previous ranges, except for
4800 an ODD entry that may have been left behind. GOT and FD indicate
4801 the size of GOT entries and function descriptors that must be
4802 placed within the range from -WRAP to WRAP. If there's room left,
4803 up to FDPLT bytes should be reserved for additional function
4806 inline static bfd_signed_vma
4807 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4808 bfd_signed_vma fdcur,
4818 bfd_signed_vma wrapmin = -wrap;
4819 const bfd_vma tdescsz = 8;
4821 /* Start at the given initial points. */
4825 /* If we had an incoming odd word and we have any got entries that
4826 are going to use it, consume it, otherwise leave gad->odd at
4827 zero. We might force gad->odd to zero and return the incoming
4828 odd such that it is used by the next range, but then GOT entries
4829 might appear to be out of order and we wouldn't be able to
4830 shorten the GOT by one word if it turns out to end with an
4831 unpaired GOT entry. */
4841 /* If we're left with an unpaired GOT entry, compute its location
4842 such that we can return it. Otherwise, if got doesn't require an
4843 odd number of words here, either odd was already zero in the
4844 block above, or it was set to zero because got was non-zero, or
4845 got was already zero. In the latter case, we want the value of
4846 odd to carry over to the return statement, so we don't want to
4847 reset odd unless the condition below is true. */
4854 /* Compute the tentative boundaries of this range. */
4855 gad->max = cur + got;
4856 gad->min = fdcur - fd;
4859 /* If function descriptors took too much space, wrap some of them
4861 if (gad->min < wrapmin)
4863 gad->max += wrapmin - gad->min;
4864 gad->tmin = gad->min = wrapmin;
4867 /* If GOT entries took too much space, wrap some of them around.
4868 This may well cause gad->min to become lower than wrapmin. This
4869 will cause a relocation overflow later on, so we don't have to
4871 if ((bfd_vma) gad->max > wrap)
4873 gad->min -= gad->max - wrap;
4877 /* Add TLS descriptors. */
4878 gad->tmax = gad->max + tlsd;
4879 gad->tmin = gad->min;
4882 /* If TLS descriptors took too much space, wrap an integral number
4884 if ((bfd_vma) gad->tmax > wrap)
4886 bfd_vma wrapsize = gad->tmax - wrap;
4888 wrapsize += tdescsz / 2;
4889 wrapsize &= ~ tdescsz / 2;
4891 gad->tmin -= wrapsize;
4892 gad->tmax -= wrapsize;
4895 /* If there is space left and we have function descriptors
4896 referenced in PLT entries that could take advantage of shorter
4897 offsets, place them now. */
4898 if (fdplt && gad->tmin > wrapmin)
4902 if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4903 fds = gad->tmin - wrapmin;
4913 /* If there is more space left, try to place some more function
4914 descriptors for PLT entries. */
4915 if (fdplt && (bfd_vma) gad->tmax < wrap)
4919 if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4920 fds = wrap - gad->tmax;
4930 /* If there is space left and we have TLS descriptors referenced in
4931 PLT entries that could take advantage of shorter offsets, place
4933 if (tlsdplt && gad->tmin > wrapmin)
4937 if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4938 tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4944 gad->tlsdplt += tlsds;
4947 /* If there is more space left, try to place some more TLS
4948 descriptors for PLT entries. Although we could try to fit an
4949 additional TLS descriptor with half of it just before before the
4950 wrap point and another right past the wrap point, this might
4951 cause us to run out of space for the next region, so don't do
4953 if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4957 if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4958 tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4964 gad->tlsdplt += tlsds;
4967 /* If odd was initially computed as an offset past the wrap point,
4970 odd = gad->min + odd - gad->max;
4972 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4973 before returning, so do it here too. This guarantees that,
4974 should cur and fdcur meet at the wrap point, they'll both be
4976 if (gad->cur == gad->max)
4977 gad->cur = gad->min;
4979 /* Ditto for _frvfdpic_get_tlsdesc_entry(). */
4980 gad->tcur = gad->max;
4981 if (gad->tcur == gad->tmax)
4982 gad->tcur = gad->tmin;
4987 /* Compute the location of the next GOT entry, given the allocation
4988 data for a range. */
4990 inline static bfd_signed_vma
4991 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4997 /* If there was an odd word left behind, use it. */
5003 /* Otherwise, use the word pointed to by cur, reserve the next
5004 as an odd word, and skip to the next pair of words, possibly
5007 gad->odd = gad->cur + 4;
5009 if (gad->cur == gad->max)
5010 gad->cur = gad->min;
5016 /* Compute the location of the next function descriptor entry in the
5017 GOT, given the allocation data for a range. */
5019 inline static bfd_signed_vma
5020 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5022 /* If we're at the bottom, wrap around, and only then allocate the
5023 next pair of words. */
5024 if (gad->fdcur == gad->min)
5025 gad->fdcur = gad->max;
5026 return gad->fdcur -= 8;
5029 /* Compute the location of the next TLS descriptor entry in the GOT,
5030 given the allocation data for a range. */
5031 inline static bfd_signed_vma
5032 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5040 /* If we're at the top of the region, wrap around to the bottom. */
5041 if (gad->tcur == gad->tmax)
5042 gad->tcur = gad->tmin;
5047 /* Assign GOT offsets for every GOT entry and function descriptor.
5048 Doing everything in a single pass is tricky. */
5051 _frvfdpic_assign_got_entries (void **entryp, void *info_)
5053 struct frvfdpic_relocs_info *entry = *entryp;
5054 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5057 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5058 else if (entry->gotlos)
5059 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5060 else if (entry->gothilo)
5061 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5064 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5065 else if (entry->fdgotlos)
5066 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5067 else if (entry->fdgothilo)
5068 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5070 if (entry->fdgoff12)
5071 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5072 else if (entry->plt && dinfo->got12.fdplt)
5074 dinfo->got12.fdplt -= 8;
5075 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5077 else if (entry->fdgofflos)
5078 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5079 else if (entry->plt && dinfo->gotlos.fdplt)
5081 dinfo->gotlos.fdplt -= 8;
5082 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5084 else if (entry->plt)
5086 dinfo->gothilo.fdplt -= 8;
5087 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5089 else if (entry->privfd)
5090 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5092 if (entry->tlsoff12)
5093 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5094 else if (entry->tlsofflos)
5095 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5096 else if (entry->tlsoffhilo)
5097 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5099 if (entry->tlsdesc12)
5100 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5101 else if (entry->tlsplt && dinfo->got12.tlsdplt)
5103 dinfo->got12.tlsdplt -= 8;
5104 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5106 else if (entry->tlsdesclos)
5107 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5108 else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5110 dinfo->gotlos.tlsdplt -= 8;
5111 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5113 else if (entry->tlsplt)
5115 dinfo->gothilo.tlsdplt -= 8;
5116 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5118 else if (entry->tlsdeschilo)
5119 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5124 /* Assign GOT offsets to private function descriptors used by PLT
5125 entries (or referenced by 32-bit offsets), as well as PLT entries
5126 and lazy PLT entries. */
5129 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5131 struct frvfdpic_relocs_info *entry = *entryp;
5132 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5135 BFD_ASSERT (entry->fd_entry);
5141 /* We use the section's raw size to mark the location of the
5143 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5145 /* Figure out the length of this PLT entry based on the
5146 addressing mode we need to reach the function descriptor. */
5147 BFD_ASSERT (entry->fd_entry);
5148 if (entry->fd_entry >= -(1 << (12 - 1))
5149 && entry->fd_entry < (1 << (12 - 1)))
5151 else if (entry->fd_entry >= -(1 << (16 - 1))
5152 && entry->fd_entry < (1 << (16 - 1)))
5157 frvfdpic_plt_section (dinfo->g.info)->size += size;
5162 entry->lzplt_entry = dinfo->g.lzplt;
5163 dinfo->g.lzplt += 8;
5164 /* If this entry is the one that gets the resolver stub, account
5165 for the additional instruction. */
5166 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5167 == FRVFDPIC_LZPLT_RESOLV_LOC)
5168 dinfo->g.lzplt += 4;
5176 = frvfdpic_plt_section (dinfo->g.info)->size;
5178 if (dinfo->g.info->executable
5179 && (entry->symndx != -1
5180 || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5182 if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5183 /* FIXME: here we use the size of the TLS section
5184 as an upper bound for the value of the TLS
5185 symbol, because we may not know the exact value
5186 yet. If we get it wrong, we'll just waste a
5187 word in the PLT, and we should never get even
5188 close to 32 KiB of TLS anyway. */
5189 && elf_hash_table (dinfo->g.info)->tls_sec
5190 && (elf_hash_table (dinfo->g.info)->tls_sec->size
5191 + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5196 else if (entry->tlsoff_entry)
5198 if (entry->tlsoff_entry >= -(1 << (12 - 1))
5199 && entry->tlsoff_entry < (1 << (12 - 1)))
5201 else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5202 && entry->tlsoff_entry < (1 << (16 - 1)))
5209 BFD_ASSERT (entry->tlsdesc_entry);
5211 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5212 && entry->tlsdesc_entry < (1 << (12 - 1)))
5214 else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5215 && entry->tlsdesc_entry < (1 << (16 - 1)))
5221 frvfdpic_plt_section (dinfo->g.info)->size += size;
5227 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5228 _frvfdpic_assign_plt_entries. */
5231 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5233 struct frvfdpic_relocs_info *entry = *entryp;
5235 entry->got_entry = 0;
5236 entry->fdgot_entry = 0;
5237 entry->fd_entry = 0;
5238 entry->plt_entry = (bfd_vma)-1;
5239 entry->lzplt_entry = (bfd_vma)-1;
5240 entry->tlsoff_entry = 0;
5241 entry->tlsdesc_entry = 0;
5242 entry->tlsplt_entry = (bfd_vma)-1;
5247 /* Follow indirect and warning hash entries so that each got entry
5248 points to the final symbol definition. P must point to a pointer
5249 to the hash table we're traversing. Since this traversal may
5250 modify the hash table, we set this pointer to NULL to indicate
5251 we've made a potentially-destructive change to the hash table, so
5252 the traversal must be restarted. */
5254 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5256 struct frvfdpic_relocs_info *entry = *entryp;
5259 if (entry->symndx == -1)
5261 struct elf_link_hash_entry *h = entry->d.h;
5262 struct frvfdpic_relocs_info *oentry;
5264 while (h->root.type == bfd_link_hash_indirect
5265 || h->root.type == bfd_link_hash_warning)
5266 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5268 if (entry->d.h == h)
5271 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5276 /* Merge the two entries. */
5277 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5278 htab_clear_slot (*htab, entryp);
5284 /* If we can't find this entry with the new bfd hash, re-insert
5285 it, and get the traversal restarted. */
5286 if (! htab_find (*htab, entry))
5288 htab_clear_slot (*htab, entryp);
5289 entryp = htab_find_slot (*htab, entry, INSERT);
5292 /* Abort the traversal, since the whole table may have
5293 moved, and leave it up to the parent to restart the
5295 *(htab_t *)p = NULL;
5303 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5304 section and the rofixup section. Assign locations for GOT and PLT
5308 _frvfdpic_size_got_plt (bfd *output_bfd,
5309 struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5312 bfd_vma limit, tlslimit;
5313 struct bfd_link_info *info = gpinfop->g.info;
5314 bfd *dynobj = elf_hash_table (info)->dynobj;
5316 memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5317 sizeof (gpinfop->g));
5320 /* Compute the total size taken by entries in the 12-bit and 16-bit
5321 ranges, to tell how many PLT function descriptors we can bring
5322 into the 12-bit range without causing the 16-bit range to
5324 limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5325 + gpinfop->g.fd12 + gpinfop->g.fdlos
5326 + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5327 if (limit < (bfd_vma)1 << 16)
5328 limit = ((bfd_vma)1 << 16) - limit;
5331 if (gpinfop->g.fdplt < limit)
5333 tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5334 limit = gpinfop->g.fdplt;
5338 if (gpinfop->g.tlsdplt < tlslimit)
5339 tlslimit = gpinfop->g.tlsdplt;
5341 /* Determine the ranges of GOT offsets that we can use for each
5342 range of addressing modes. */
5343 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5352 (bfd_vma)1 << (12-1));
5353 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5354 gpinfop->got12.tmin,
5356 gpinfop->got12.tmax,
5360 - gpinfop->got12.fdplt,
5363 - gpinfop->got12.tlsdplt,
5364 (bfd_vma)1 << (16-1));
5365 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5366 gpinfop->gotlos.tmin,
5368 gpinfop->gotlos.tmax,
5372 - gpinfop->got12.fdplt
5373 - gpinfop->gotlos.fdplt,
5374 gpinfop->g.tlsdhilo,
5376 - gpinfop->got12.tlsdplt
5377 - gpinfop->gotlos.tlsdplt,
5378 (bfd_vma)1 << (32-1));
5380 /* Now assign (most) GOT offsets. */
5381 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5384 frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5385 - gpinfop->gothilo.tmin
5386 /* If an odd word is the last word of the GOT, we don't need this
5387 word to be part of the GOT. */
5388 - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5389 if (frvfdpic_got_section (info)->size == 0)
5390 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5391 else if (frvfdpic_got_section (info)->size == 12
5392 && ! elf_hash_table (info)->dynamic_sections_created)
5394 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5395 frvfdpic_got_section (info)->size = 0;
5397 /* This will be non-NULL during relaxation. The assumption is that
5398 the size of one of these sections will never grow, only shrink,
5399 so we can use the larger buffer we allocated before. */
5400 else if (frvfdpic_got_section (info)->contents == NULL)
5402 frvfdpic_got_section (info)->contents =
5403 (bfd_byte *) bfd_zalloc (dynobj,
5404 frvfdpic_got_section (info)->size);
5405 if (frvfdpic_got_section (info)->contents == NULL)
5409 if (frvfdpic_gotrel_section (info))
5410 /* Subtract the number of lzplt entries, since those will generate
5411 relocations in the pltrel section. */
5412 frvfdpic_gotrel_section (info)->size =
5413 (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5414 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5416 BFD_ASSERT (gpinfop->g.relocs == 0);
5417 if (frvfdpic_gotrel_section (info)->size == 0)
5418 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5419 else if (frvfdpic_gotrel_section (info)->contents == NULL)
5421 frvfdpic_gotrel_section (info)->contents =
5422 (bfd_byte *) bfd_zalloc (dynobj,
5423 frvfdpic_gotrel_section (info)->size);
5424 if (frvfdpic_gotrel_section (info)->contents == NULL)
5428 frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5429 if (frvfdpic_gotfixup_section (info)->size == 0)
5430 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5431 else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5433 frvfdpic_gotfixup_section (info)->contents =
5434 (bfd_byte *) bfd_zalloc (dynobj,
5435 frvfdpic_gotfixup_section (info)->size);
5436 if (frvfdpic_gotfixup_section (info)->contents == NULL)
5440 if (frvfdpic_pltrel_section (info))
5442 frvfdpic_pltrel_section (info)->size =
5443 gpinfop->g.lzplt / 8
5444 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5445 if (frvfdpic_pltrel_section (info)->size == 0)
5446 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5447 else if (frvfdpic_pltrel_section (info)->contents == NULL)
5449 frvfdpic_pltrel_section (info)->contents =
5450 (bfd_byte *) bfd_zalloc (dynobj,
5451 frvfdpic_pltrel_section (info)->size);
5452 if (frvfdpic_pltrel_section (info)->contents == NULL)
5457 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5458 such that there's room for the additional instruction needed to
5459 call the resolver. Since _frvfdpic_assign_got_entries didn't
5460 account for them, our block size is 4 bytes smaller than the real
5462 if (frvfdpic_plt_section (info))
5464 frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5465 + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5466 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5469 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5470 actually assign lazy PLT entries addresses. */
5471 gpinfop->g.lzplt = 0;
5473 /* Save information that we're going to need to generate GOT and PLT
5475 frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5477 if (get_elf_backend_data (output_bfd)->want_got_sym)
5478 elf_hash_table (info)->hgot->root.u.def.value
5479 = frvfdpic_got_initial_offset (info);
5481 if (frvfdpic_plt_section (info))
5482 frvfdpic_plt_initial_offset (info) =
5483 frvfdpic_plt_section (info)->size;
5485 /* Allocate a ret statement at plt_initial_offset, to be used by
5486 locally-resolved TLS descriptors. */
5487 if (gpinfop->g.tls_ret_refs)
5488 frvfdpic_plt_section (info)->size += 4;
5490 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5493 /* Allocate the PLT section contents only after
5494 _frvfdpic_assign_plt_entries has a chance to add the size of the
5495 non-lazy PLT entries. */
5496 if (frvfdpic_plt_section (info))
5498 if (frvfdpic_plt_section (info)->size == 0)
5499 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5500 else if (frvfdpic_plt_section (info)->contents == NULL)
5502 frvfdpic_plt_section (info)->contents =
5503 (bfd_byte *) bfd_zalloc (dynobj,
5504 frvfdpic_plt_section (info)->size);
5505 if (frvfdpic_plt_section (info)->contents == NULL)
5513 /* Set the sizes of the dynamic sections. */
5516 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5517 struct bfd_link_info *info)
5521 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5523 dynobj = elf_hash_table (info)->dynobj;
5524 BFD_ASSERT (dynobj != NULL);
5526 if (elf_hash_table (info)->dynamic_sections_created)
5528 /* Set the contents of the .interp section to the interpreter. */
5529 if (info->executable)
5531 s = bfd_get_section_by_name (dynobj, ".interp");
5532 BFD_ASSERT (s != NULL);
5533 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5534 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5538 memset (&gpinfo, 0, sizeof (gpinfo));
5539 gpinfo.g.info = info;
5543 htab_t relocs = frvfdpic_relocs_info (info);
5545 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5547 if (relocs == frvfdpic_relocs_info (info))
5551 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5554 /* Allocate space to save the summary information, we're going to
5555 use it if we're doing relaxations. */
5556 frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5558 if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5561 if (elf_hash_table (info)->dynamic_sections_created)
5563 if (frvfdpic_got_section (info)->size)
5564 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5567 if (frvfdpic_pltrel_section (info)->size)
5568 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5569 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5570 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5573 if (frvfdpic_gotrel_section (info)->size)
5574 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5575 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5576 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5577 sizeof (Elf32_External_Rel)))
5585 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5586 struct bfd_link_info *info)
5588 if (!info->relocatable)
5590 struct elf_link_hash_entry *h;
5592 /* Force a PT_GNU_STACK segment to be created. */
5593 if (! elf_tdata (output_bfd)->stack_flags)
5594 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
5596 /* Define __stacksize if it's not defined yet. */
5597 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5598 FALSE, FALSE, FALSE);
5599 if (! h || h->root.type != bfd_link_hash_defined
5600 || h->type != STT_OBJECT
5603 struct bfd_link_hash_entry *bh = NULL;
5605 if (!(_bfd_generic_link_add_one_symbol
5606 (info, output_bfd, "__stacksize",
5607 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
5608 (const char *) NULL, FALSE,
5609 get_elf_backend_data (output_bfd)->collect, &bh)))
5612 h = (struct elf_link_hash_entry *) bh;
5614 h->type = STT_OBJECT;
5615 /* This one must NOT be hidden. */
5622 /* Check whether any of the relocations was optimized away, and
5623 subtract it from the relocation or fixup count. */
5625 _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5626 struct bfd_link_info *info,
5628 bfd_boolean *changed)
5630 Elf_Internal_Shdr *symtab_hdr;
5631 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
5632 Elf_Internal_Rela *rel, *erel;
5634 if ((sec->flags & SEC_RELOC) == 0
5635 || sec->reloc_count == 0)
5638 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5639 sym_hashes = elf_sym_hashes (abfd);
5640 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
5641 if (!elf_bad_symtab (abfd))
5642 sym_hashes_end -= symtab_hdr->sh_info;
5644 rel = elf_section_data (sec)->relocs;
5646 /* Now examine each relocation. */
5647 for (erel = rel + sec->reloc_count; rel < erel; rel++)
5649 struct elf_link_hash_entry *h;
5650 unsigned long r_symndx;
5651 struct frvfdpic_relocs_info *picrel;
5652 struct _frvfdpic_dynamic_got_info *dinfo;
5654 if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5655 && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5658 if (_bfd_elf_section_offset (sec->output_section->owner,
5659 info, sec, rel->r_offset)
5663 r_symndx = ELF32_R_SYM (rel->r_info);
5664 if (r_symndx < symtab_hdr->sh_info)
5668 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5669 while (h->root.type == bfd_link_hash_indirect
5670 || h->root.type == bfd_link_hash_warning)
5671 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5675 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5677 rel->r_addend, NO_INSERT);
5679 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5681 rel->r_addend, NO_INSERT);
5687 dinfo = frvfdpic_dynamic_got_plt_info (info);
5689 _frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
5690 if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5692 else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5694 _frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
5701 frvfdpic_elf_discard_info (bfd *ibfd,
5702 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5703 struct bfd_link_info *info)
5705 bfd_boolean changed = FALSE;
5709 /* Account for relaxation of .eh_frame section. */
5710 for (s = ibfd->sections; s; s = s->next)
5711 if (s->sec_info_type == ELF_INFO_TYPE_EH_FRAME)
5713 if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5715 obfd = s->output_section->owner;
5720 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5722 memset (&gpinfo, 0, sizeof (gpinfo));
5723 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5726 /* Clear GOT and PLT assignments. */
5727 htab_traverse (frvfdpic_relocs_info (info),
5728 _frvfdpic_reset_got_plt_entries,
5731 if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5738 /* Look for opportunities to relax TLS relocations. We can assume
5739 we're linking the main executable or a static-tls library, since
5740 otherwise we wouldn't have got here. */
5743 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5745 struct frvfdpic_relocs_info *entry = *entryp;
5746 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5748 _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5754 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5755 struct bfd_link_info *info, bfd_boolean *again)
5757 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5759 /* If we return early, we didn't change anything. */
5762 /* We'll do our thing when requested to relax the GOT section. */
5763 if (sec != frvfdpic_got_section (info))
5766 /* We can only relax when linking the main executable or a library
5767 that can't be dlopened. */
5768 if (! info->executable && ! (info->flags & DF_STATIC_TLS))
5771 /* If there isn't a TLS section for this binary, we can't do
5772 anything about its TLS relocations (it probably doesn't have
5774 if (elf_hash_table (info)->tls_sec == NULL)
5777 memset (&gpinfo, 0, sizeof (gpinfo));
5778 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5780 /* Now look for opportunities to relax, adjusting the GOT usage
5782 htab_traverse (frvfdpic_relocs_info (info),
5783 _frvfdpic_relax_got_plt_entries,
5786 /* If we changed anything, reset and re-assign GOT and PLT entries. */
5787 if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5788 &gpinfo.g, sizeof (gpinfo.g)) != 0)
5790 /* Clear GOT and PLT assignments. */
5791 htab_traverse (frvfdpic_relocs_info (info),
5792 _frvfdpic_reset_got_plt_entries,
5795 /* The owner of the TLS section is the output bfd. There should
5796 be a better way to get to it. */
5797 if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5801 /* Repeat until we don't make any further changes. We could fail to
5802 introduce changes in a round if, for example, the 12-bit range is
5803 full, but we later release some space by getting rid of TLS
5804 descriptors in it. We have to repeat the whole process because
5805 we might have changed the size of a section processed before this
5814 elf32_frvfdpic_modify_program_headers (bfd *output_bfd,
5815 struct bfd_link_info *info)
5817 struct elf_obj_tdata *tdata = elf_tdata (output_bfd);
5818 struct elf_segment_map *m;
5819 Elf_Internal_Phdr *p;
5821 /* objcopy and strip preserve what's already there using
5822 elf32_frvfdpic_copy_private_bfd_data (). */
5826 for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++)
5827 if (m->p_type == PT_GNU_STACK)
5832 struct elf_link_hash_entry *h;
5834 /* Obtain the pointer to the __stacksize symbol. */
5835 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5836 FALSE, FALSE, FALSE);
5839 while (h->root.type == bfd_link_hash_indirect
5840 || h->root.type == bfd_link_hash_warning)
5841 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5842 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
5845 /* Set the header p_memsz from the symbol value. We
5846 intentionally ignore the symbol section. */
5847 if (h && h->root.type == bfd_link_hash_defined)
5848 p->p_memsz = h->root.u.def.value;
5850 p->p_memsz = DEFAULT_STACK_SIZE;
5858 /* Fill in code and data in dynamic sections. */
5861 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5862 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5864 /* Nothing to be done for non-FDPIC. */
5869 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5870 struct bfd_link_info *info)
5875 dynobj = elf_hash_table (info)->dynobj;
5877 if (frvfdpic_dynamic_got_plt_info (info))
5879 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5881 if (frvfdpic_got_section (info))
5883 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5884 == (frvfdpic_gotrel_section (info)->reloc_count
5885 * sizeof (Elf32_External_Rel)));
5887 if (frvfdpic_gotfixup_section (info))
5889 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5890 bfd_vma got_value = hgot->root.u.def.value
5891 + hgot->root.u.def.section->output_section->vma
5892 + hgot->root.u.def.section->output_offset;
5893 struct bfd_link_hash_entry *hend;
5895 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5898 if (frvfdpic_gotfixup_section (info)->size
5899 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5902 (*_bfd_error_handler)
5903 ("LINKER BUG: .rofixup section size mismatch");
5907 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5908 FALSE, FALSE, TRUE);
5910 && (hend->type == bfd_link_hash_defined
5911 || hend->type == bfd_link_hash_defweak))
5914 frvfdpic_gotfixup_section (info)->output_section->vma
5915 + frvfdpic_gotfixup_section (info)->output_offset
5916 + frvfdpic_gotfixup_section (info)->size
5917 - hend->u.def.section->output_section->vma
5918 - hend->u.def.section->output_offset;
5919 BFD_ASSERT (hend->u.def.value == value);
5920 if (hend->u.def.value != value)
5925 if (frvfdpic_pltrel_section (info))
5927 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5928 == (frvfdpic_pltrel_section (info)->reloc_count
5929 * sizeof (Elf32_External_Rel)));
5933 if (elf_hash_table (info)->dynamic_sections_created)
5935 Elf32_External_Dyn * dyncon;
5936 Elf32_External_Dyn * dynconend;
5938 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
5940 BFD_ASSERT (sdyn != NULL);
5942 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5943 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5945 for (; dyncon < dynconend; dyncon++)
5947 Elf_Internal_Dyn dyn;
5949 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5957 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5958 + frvfdpic_got_section (info)->output_offset
5959 + frvfdpic_got_initial_offset (info);
5960 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5964 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5965 ->output_section->vma
5966 + frvfdpic_pltrel_section (info)->output_offset;
5967 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5971 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5972 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5981 /* Adjust a symbol defined by a dynamic object and referenced by a
5985 elf32_frvfdpic_adjust_dynamic_symbol
5986 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5987 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5991 dynobj = elf_hash_table (info)->dynobj;
5993 /* Make sure we know what is going on here. */
5994 BFD_ASSERT (dynobj != NULL
5995 && (h->u.weakdef != NULL
5998 && !h->def_regular)));
6000 /* If this is a weak symbol, and there is a real definition, the
6001 processor independent code will have arranged for us to see the
6002 real definition first, and we can just use the same value. */
6003 if (h->u.weakdef != NULL)
6005 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
6006 || h->u.weakdef->root.type == bfd_link_hash_defweak);
6007 h->root.u.def.section = h->u.weakdef->root.u.def.section;
6008 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6014 /* Perform any actions needed for dynamic symbols. */
6017 elf32_frvfdpic_finish_dynamic_symbol
6018 (bfd *output_bfd ATTRIBUTE_UNUSED,
6019 struct bfd_link_info *info ATTRIBUTE_UNUSED,
6020 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
6021 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
6026 /* Decide whether to attempt to turn absptr or lsda encodings in
6027 shared libraries into pcrel within the given input section. */
6030 frvfdpic_elf_use_relative_eh_frame
6031 (bfd *input_bfd ATTRIBUTE_UNUSED,
6032 struct bfd_link_info *info ATTRIBUTE_UNUSED,
6033 asection *eh_frame_section ATTRIBUTE_UNUSED)
6035 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
6039 /* Adjust the contents of an eh_frame_hdr section before they're output. */
6042 frvfdpic_elf_encode_eh_address (bfd *abfd,
6043 struct bfd_link_info *info,
6044 asection *osec, bfd_vma offset,
6045 asection *loc_sec, bfd_vma loc_offset,
6048 struct elf_link_hash_entry *h;
6050 h = elf_hash_table (info)->hgot;
6051 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
6053 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
6054 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
6055 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
6056 loc_sec, loc_offset, encoded);
6058 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
6059 == (_frvfdpic_osec_to_segment
6060 (abfd, h->root.u.def.section->output_section)));
6062 *encoded = osec->vma + offset
6063 - (h->root.u.def.value
6064 + h->root.u.def.section->output_section->vma
6065 + h->root.u.def.section->output_offset);
6067 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
6070 /* Look through the relocs for a section during the first phase.
6072 Besides handling virtual table relocs for gc, we have to deal with
6073 all sorts of PIC-related relocations. We describe below the
6074 general plan on how to handle such relocations, even though we only
6075 collect information at this point, storing them in hash tables for
6076 perusal of later passes.
6078 32 relocations are propagated to the linker output when creating
6079 position-independent output. LO16 and HI16 relocations are not
6080 supposed to be encountered in this case.
6082 LABEL16 should always be resolvable by the linker, since it's only
6085 LABEL24, on the other hand, is used by calls. If it turns out that
6086 the target of a call is a dynamic symbol, a PLT entry must be
6087 created for it, which triggers the creation of a private function
6088 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
6090 GPREL relocations require the referenced symbol to be in the same
6091 segment as _gp, but this can only be checked later.
6093 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
6094 exist. LABEL24 might as well, since it may require a PLT entry,
6095 that will require a got.
6097 Non-FUNCDESC GOT relocations require a GOT entry to be created
6098 regardless of whether the symbol is dynamic. However, since a
6099 global symbol that turns out to not be exported may have the same
6100 address of a non-dynamic symbol, we don't assign GOT entries at
6101 this point, such that we can share them in this case. A relocation
6102 for the GOT entry always has to be created, be it to offset a
6103 private symbol by the section load address, be it to get the symbol
6104 resolved dynamically.
6106 FUNCDESC GOT relocations require a GOT entry to be created, and
6107 handled as if a FUNCDESC relocation was applied to the GOT entry in
6110 FUNCDESC relocations referencing a symbol that turns out to NOT be
6111 dynamic cause a private function descriptor to be created. The
6112 FUNCDESC relocation then decays to a 32 relocation that points at
6113 the private descriptor. If the symbol is dynamic, the FUNCDESC
6114 relocation is propagated to the linker output, such that the
6115 dynamic linker creates the canonical descriptor, pointing to the
6116 dynamically-resolved definition of the function.
6118 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
6119 symbols that are assigned to the same segment as the GOT, but we
6120 can only check this later, after we know the complete set of
6121 symbols defined and/or exported.
6123 FUNCDESC GOTOFF relocations require a function descriptor to be
6124 created and, unless lazy binding is disabled or the symbol is not
6125 dynamic, a lazy PLT entry. Since we can't tell at this point
6126 whether a symbol is going to be dynamic, we have to decide later
6127 whether to create a lazy PLT entry or bind the descriptor directly
6128 to the private function.
6130 FUNCDESC_VALUE relocations are not supposed to be present in object
6131 files, but they may very well be simply propagated to the linker
6132 output, since they have no side effect.
6135 A function descriptor always requires a FUNCDESC_VALUE relocation.
6136 Whether it's in .plt.rel or not depends on whether lazy binding is
6137 enabled and on whether the referenced symbol is dynamic.
6139 The existence of a lazy PLT requires the resolverStub lazy PLT
6140 entry to be present.
6143 As for assignment of GOT, PLT and lazy PLT entries, and private
6144 descriptors, we might do them all sequentially, but we can do
6145 better than that. For example, we can place GOT entries and
6146 private function descriptors referenced using 12-bit operands
6147 closer to the PIC register value, such that these relocations don't
6148 overflow. Those that are only referenced with LO16 relocations
6149 could come next, but we may as well place PLT-required function
6150 descriptors in the 12-bit range to make them shorter. Symbols
6151 referenced with LO16/HI16 may come next, but we may place
6152 additional function descriptors in the 16-bit range if we can
6153 reliably tell that we've already placed entries that are ever
6154 referenced with only LO16. PLT entries are therefore generated as
6155 small as possible, while not introducing relocation overflows in
6156 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
6157 generated before or after PLT entries, but not intermingled with
6158 them, such that we can have more lazy PLT entries in range for a
6159 branch to the resolverStub. The resolverStub should be emitted at
6160 the most distant location from the first lazy PLT entry such that
6161 it's still in range for a branch, or closer, if there isn't a need
6162 for so many lazy PLT entries. Additional lazy PLT entries may be
6163 emitted after the resolverStub, as long as branches are still in
6164 range. If the branch goes out of range, longer lazy PLT entries
6167 We could further optimize PLT and lazy PLT entries by giving them
6168 priority in assignment to closer-to-gr17 locations depending on the
6169 number of occurrences of references to them (assuming a function
6170 that's called more often is more important for performance, so its
6171 PLT entry should be faster), or taking hints from the compiler.
6172 Given infinite time and money... :-) */
6175 elf32_frv_check_relocs (abfd, info, sec, relocs)
6177 struct bfd_link_info *info;
6179 const Elf_Internal_Rela *relocs;
6181 Elf_Internal_Shdr *symtab_hdr;
6182 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
6183 const Elf_Internal_Rela *rel;
6184 const Elf_Internal_Rela *rel_end;
6186 struct frvfdpic_relocs_info *picrel;
6188 if (info->relocatable)
6191 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6192 sym_hashes = elf_sym_hashes (abfd);
6193 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
6194 if (!elf_bad_symtab (abfd))
6195 sym_hashes_end -= symtab_hdr->sh_info;
6197 dynobj = elf_hash_table (info)->dynobj;
6198 rel_end = relocs + sec->reloc_count;
6199 for (rel = relocs; rel < rel_end; rel++)
6201 struct elf_link_hash_entry *h;
6202 unsigned long r_symndx;
6204 r_symndx = ELF32_R_SYM (rel->r_info);
6205 if (r_symndx < symtab_hdr->sh_info)
6209 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6210 while (h->root.type == bfd_link_hash_indirect
6211 || h->root.type == bfd_link_hash_warning)
6212 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6215 switch (ELF32_R_TYPE (rel->r_info))
6217 case R_FRV_GETTLSOFF:
6218 case R_FRV_TLSDESC_VALUE:
6219 case R_FRV_GOTTLSDESC12:
6220 case R_FRV_GOTTLSDESCHI:
6221 case R_FRV_GOTTLSDESCLO:
6222 case R_FRV_GOTTLSOFF12:
6223 case R_FRV_GOTTLSOFFHI:
6224 case R_FRV_GOTTLSOFFLO:
6229 case R_FRV_FUNCDESC_GOT12:
6230 case R_FRV_FUNCDESC_GOTHI:
6231 case R_FRV_FUNCDESC_GOTLO:
6232 case R_FRV_GOTOFF12:
6233 case R_FRV_GOTOFFHI:
6234 case R_FRV_GOTOFFLO:
6235 case R_FRV_FUNCDESC_GOTOFF12:
6236 case R_FRV_FUNCDESC_GOTOFFHI:
6237 case R_FRV_FUNCDESC_GOTOFFLO:
6238 case R_FRV_FUNCDESC:
6239 case R_FRV_FUNCDESC_VALUE:
6240 case R_FRV_TLSMOFF12:
6241 case R_FRV_TLSMOFFHI:
6242 case R_FRV_TLSMOFFLO:
6244 if (! IS_FDPIC (abfd))
6248 case R_FRV_GPRELU12:
6255 elf_hash_table (info)->dynobj = dynobj = abfd;
6256 if (! _frv_create_got_section (abfd, info))
6259 if (! IS_FDPIC (abfd))
6266 if (h->dynindx == -1)
6267 switch (ELF_ST_VISIBILITY (h->other))
6273 bfd_elf_link_record_dynamic_symbol (info, h);
6277 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6279 rel->r_addend, INSERT);
6282 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6283 (info), abfd, r_symndx,
6284 rel->r_addend, INSERT);
6294 switch (ELF32_R_TYPE (rel->r_info))
6297 if (IS_FDPIC (abfd))
6301 case R_FRV_FUNCDESC_VALUE:
6302 picrel->relocsfdv++;
6303 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6308 if (! IS_FDPIC (abfd))
6312 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6322 picrel->gothilo = 1;
6325 case R_FRV_FUNCDESC_GOT12:
6326 picrel->fdgot12 = 1;
6329 case R_FRV_FUNCDESC_GOTHI:
6330 case R_FRV_FUNCDESC_GOTLO:
6331 picrel->fdgothilo = 1;
6334 case R_FRV_GOTOFF12:
6335 case R_FRV_GOTOFFHI:
6336 case R_FRV_GOTOFFLO:
6340 case R_FRV_FUNCDESC_GOTOFF12:
6341 picrel->fdgoff12 = 1;
6344 case R_FRV_FUNCDESC_GOTOFFHI:
6345 case R_FRV_FUNCDESC_GOTOFFLO:
6346 picrel->fdgoffhilo = 1;
6349 case R_FRV_FUNCDESC:
6354 case R_FRV_GETTLSOFF:
6358 case R_FRV_TLSDESC_VALUE:
6359 picrel->relocstlsd++;
6362 case R_FRV_GOTTLSDESC12:
6363 picrel->tlsdesc12 = 1;
6366 case R_FRV_GOTTLSDESCHI:
6367 case R_FRV_GOTTLSDESCLO:
6368 picrel->tlsdeschilo = 1;
6371 case R_FRV_TLSMOFF12:
6372 case R_FRV_TLSMOFFHI:
6373 case R_FRV_TLSMOFFLO:
6377 case R_FRV_GOTTLSOFF12:
6378 picrel->tlsoff12 = 1;
6379 info->flags |= DF_STATIC_TLS;
6382 case R_FRV_GOTTLSOFFHI:
6383 case R_FRV_GOTTLSOFFLO:
6384 picrel->tlsoffhilo = 1;
6385 info->flags |= DF_STATIC_TLS;
6389 picrel->relocstlsoff++;
6390 info->flags |= DF_STATIC_TLS;
6393 /* This relocation describes the C++ object vtable hierarchy.
6394 Reconstruct it for later use during GC. */
6395 case R_FRV_GNU_VTINHERIT:
6396 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6400 /* This relocation describes which C++ vtable entries are actually
6401 used. Record for later use during GC. */
6402 case R_FRV_GNU_VTENTRY:
6403 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6411 case R_FRV_GPRELU12:
6415 case R_FRV_TLSDESC_RELAX:
6416 case R_FRV_GETTLSOFF_RELAX:
6417 case R_FRV_TLSOFF_RELAX:
6422 (*_bfd_error_handler)
6423 (_("%B: unsupported relocation type %i"),
6424 abfd, ELF32_R_TYPE (rel->r_info));
6433 /* Return the machine subcode from the ELF e_flags header. */
6436 elf32_frv_machine (abfd)
6439 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6442 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6443 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6444 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6445 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6446 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6447 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6448 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6449 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6452 return bfd_mach_frv;
6455 /* Set the right machine number for a FRV ELF file. */
6458 elf32_frv_object_p (abfd)
6461 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6462 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6463 == (IS_FDPIC (abfd)));
6466 /* Function to set the ELF flag bits. */
6469 frv_elf_set_private_flags (abfd, flags)
6473 elf_elfheader (abfd)->e_flags = flags;
6474 elf_flags_init (abfd) = TRUE;
6478 /* Copy backend specific data from one object module to another. */
6481 frv_elf_copy_private_bfd_data (ibfd, obfd)
6485 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6486 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6489 BFD_ASSERT (!elf_flags_init (obfd)
6490 || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
6492 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
6493 elf_flags_init (obfd) = TRUE;
6495 /* Copy object attributes. */
6496 _bfd_elf_copy_obj_attributes (ibfd, obfd);
6501 /* Return true if the architecture described by elf header flag
6502 EXTENSION is an extension of the architecture described by BASE. */
6505 frv_elf_arch_extension_p (flagword base, flagword extension)
6507 if (base == extension)
6510 /* CPU_GENERIC code can be merged with code for a specific
6511 architecture, in which case the result is marked as being
6512 for the specific architecture. Everything is therefore
6513 an extension of CPU_GENERIC. */
6514 if (base == EF_FRV_CPU_GENERIC)
6517 if (extension == EF_FRV_CPU_FR450)
6518 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6521 if (extension == EF_FRV_CPU_FR405)
6522 if (base == EF_FRV_CPU_FR400)
6529 elf32_frvfdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
6533 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6534 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6537 if (! frv_elf_copy_private_bfd_data (ibfd, obfd))
6540 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
6541 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
6544 /* Copy the stack size. */
6545 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
6546 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
6548 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
6550 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
6551 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
6553 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
6555 /* Rewrite the phdrs, since we're only called after they
6556 were first written. */
6557 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
6558 ->s->sizeof_ehdr, SEEK_SET) != 0
6559 || get_elf_backend_data (obfd)->s
6560 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
6561 elf_elfheader (obfd)->e_phnum) != 0)
6572 /* Merge backend specific data from an object file to the output
6573 object file when linking. */
6576 frv_elf_merge_private_bfd_data (ibfd, obfd)
6580 flagword old_flags, old_partial;
6581 flagword new_flags, new_partial;
6582 bfd_boolean error = FALSE;
6586 new_opt[0] = old_opt[0] = '\0';
6587 new_flags = elf_elfheader (ibfd)->e_flags;
6588 old_flags = elf_elfheader (obfd)->e_flags;
6590 if (new_flags & EF_FRV_FDPIC)
6591 new_flags &= ~EF_FRV_PIC;
6594 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
6595 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6596 bfd_get_filename (ibfd));
6599 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6601 elf_flags_init (obfd) = TRUE;
6602 old_flags = new_flags;
6605 else if (new_flags == old_flags) /* Compatible flags are ok. */
6608 else /* Possibly incompatible flags. */
6610 /* Warn if different # of gprs are used. Note, 0 means nothing is
6611 said about the size of gprs. */
6612 new_partial = (new_flags & EF_FRV_GPR_MASK);
6613 old_partial = (old_flags & EF_FRV_GPR_MASK);
6614 if (new_partial == old_partial)
6617 else if (new_partial == 0)
6620 else if (old_partial == 0)
6621 old_flags |= new_partial;
6625 switch (new_partial)
6627 default: strcat (new_opt, " -mgpr-??"); break;
6628 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6629 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6632 switch (old_partial)
6634 default: strcat (old_opt, " -mgpr-??"); break;
6635 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6636 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6640 /* Warn if different # of fprs are used. Note, 0 means nothing is
6641 said about the size of fprs. */
6642 new_partial = (new_flags & EF_FRV_FPR_MASK);
6643 old_partial = (old_flags & EF_FRV_FPR_MASK);
6644 if (new_partial == old_partial)
6647 else if (new_partial == 0)
6650 else if (old_partial == 0)
6651 old_flags |= new_partial;
6655 switch (new_partial)
6657 default: strcat (new_opt, " -mfpr-?"); break;
6658 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6659 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6660 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6663 switch (old_partial)
6665 default: strcat (old_opt, " -mfpr-?"); break;
6666 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6667 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6668 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6672 /* Warn if different dword support was used. Note, 0 means nothing is
6673 said about the dword support. */
6674 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6675 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6676 if (new_partial == old_partial)
6679 else if (new_partial == 0)
6682 else if (old_partial == 0)
6683 old_flags |= new_partial;
6687 switch (new_partial)
6689 default: strcat (new_opt, " -mdword-?"); break;
6690 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6691 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6694 switch (old_partial)
6696 default: strcat (old_opt, " -mdword-?"); break;
6697 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6698 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6702 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6704 old_flags |= new_flags & (EF_FRV_DOUBLE
6707 | EF_FRV_NON_PIC_RELOCS);
6709 /* If any module was compiled without -G0, clear the G0 bit. */
6710 old_flags = ((old_flags & ~ EF_FRV_G0)
6711 | (old_flags & new_flags & EF_FRV_G0));
6713 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6714 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6715 | (old_flags & new_flags & EF_FRV_NOPACK));
6717 /* We don't have to do anything if the pic flags are the same, or the new
6718 module(s) were compiled with -mlibrary-pic. */
6719 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6720 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6721 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6724 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6725 flags if any from the new module. */
6726 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6727 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6729 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6730 else if (new_partial != 0 && old_partial != 0)
6731 old_flags |= new_partial;
6733 /* One module was compiled for pic and the other was not, see if we have
6734 had any relocations that are not pic-safe. */
6737 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6738 old_flags |= new_partial;
6741 old_flags &= ~ EF_FRV_PIC_FLAGS;
6742 #ifndef FRV_NO_PIC_ERROR
6744 (*_bfd_error_handler)
6745 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
6746 bfd_get_filename (ibfd),
6747 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6752 /* Warn if different cpu is used (allow a specific cpu to override
6753 the generic cpu). */
6754 new_partial = (new_flags & EF_FRV_CPU_MASK);
6755 old_partial = (old_flags & EF_FRV_CPU_MASK);
6756 if (frv_elf_arch_extension_p (new_partial, old_partial))
6759 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6760 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6764 switch (new_partial)
6766 default: strcat (new_opt, " -mcpu=?"); break;
6767 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6768 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6769 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6770 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6771 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6772 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6773 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6774 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6775 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6778 switch (old_partial)
6780 default: strcat (old_opt, " -mcpu=?"); break;
6781 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6782 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6783 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6784 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6785 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6786 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6787 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6788 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6789 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6793 /* Print out any mismatches from above. */
6797 (*_bfd_error_handler)
6798 (_("%s: compiled with %s and linked with modules compiled with %s"),
6799 bfd_get_filename (ibfd), new_opt, old_opt);
6802 /* Warn about any other mismatches */
6803 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6804 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6805 if (new_partial != old_partial)
6807 old_flags |= new_partial;
6809 (*_bfd_error_handler)
6810 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
6811 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
6815 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6816 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6817 old_flags |= EF_FRV_NOPACK;
6819 /* Update the old flags now with changes made above. */
6820 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6821 elf_elfheader (obfd)->e_flags = old_flags;
6822 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6823 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6825 if (((new_flags & EF_FRV_FDPIC) == 0)
6826 != (! IS_FDPIC (ibfd)))
6829 if (IS_FDPIC (obfd))
6830 (*_bfd_error_handler)
6831 (_("%s: cannot link non-fdpic object file into fdpic executable"),
6832 bfd_get_filename (ibfd));
6834 (*_bfd_error_handler)
6835 (_("%s: cannot link fdpic object file into non-fdpic executable"),
6836 bfd_get_filename (ibfd));
6840 bfd_set_error (bfd_error_bad_value);
6847 frv_elf_print_private_bfd_data (abfd, ptr)
6851 FILE *file = (FILE *) ptr;
6854 BFD_ASSERT (abfd != NULL && ptr != NULL);
6856 /* Print normal ELF private data. */
6857 _bfd_elf_print_private_bfd_data (abfd, ptr);
6859 flags = elf_elfheader (abfd)->e_flags;
6860 fprintf (file, _("private flags = 0x%lx:"), (long)flags);
6862 switch (flags & EF_FRV_CPU_MASK)
6865 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6866 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6867 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6868 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6869 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6870 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6871 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6872 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6875 switch (flags & EF_FRV_GPR_MASK)
6878 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6879 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6882 switch (flags & EF_FRV_FPR_MASK)
6885 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6886 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6887 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6890 switch (flags & EF_FRV_DWORD_MASK)
6893 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6894 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6897 if (flags & EF_FRV_DOUBLE)
6898 fprintf (file, " -mdouble");
6900 if (flags & EF_FRV_MEDIA)
6901 fprintf (file, " -mmedia");
6903 if (flags & EF_FRV_MULADD)
6904 fprintf (file, " -mmuladd");
6906 if (flags & EF_FRV_PIC)
6907 fprintf (file, " -fpic");
6909 if (flags & EF_FRV_BIGPIC)
6910 fprintf (file, " -fPIC");
6912 if (flags & EF_FRV_LIBPIC)
6913 fprintf (file, " -mlibrary-pic");
6915 if (flags & EF_FRV_FDPIC)
6916 fprintf (file, " -mfdpic");
6918 if (flags & EF_FRV_NON_PIC_RELOCS)
6919 fprintf (file, " non-pic relocations");
6921 if (flags & EF_FRV_G0)
6922 fprintf (file, " -G0");
6929 /* Support for core dump NOTE sections. */
6932 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6935 unsigned int raw_size;
6937 switch (note->descsz)
6942 /* The Linux/FRV elf_prstatus struct is 268 bytes long. The other
6943 hardcoded offsets and sizes listed below (and contained within
6944 this lexical block) refer to fields in the target's elf_prstatus
6947 /* `pr_cursig' is at offset 12. */
6948 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
6950 /* `pr_pid' is at offset 24. */
6951 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
6953 /* `pr_reg' is at offset 72. */
6956 /* Most grok_prstatus implementations set `raw_size' to the size
6957 of the pr_reg field. For Linux/FRV, we set `raw_size' to be
6958 the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6959 and `pr_interp_fdpic_loadmap', both of which (by design)
6960 immediately follow `pr_reg'. This will allow these fields to
6961 be viewed by GDB as registers.
6963 `pr_reg' is 184 bytes long. `pr_exec_fdpic_loadmap' and
6964 `pr_interp_fdpic_loadmap' are 4 bytes each. */
6965 raw_size = 184 + 4 + 4;
6970 /* Make a ".reg/999" section. */
6971 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6972 note->descpos + offset);
6976 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6978 switch (note->descsz)
6983 /* The Linux/FRV elf_prpsinfo struct is 124 bytes long. */
6986 /* `pr_fname' is found at offset 28 and is 16 bytes long. */
6987 elf_tdata (abfd)->core_program
6988 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6990 /* `pr_psargs' is found at offset 44 and is 80 bytes long. */
6991 elf_tdata (abfd)->core_command
6992 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6995 /* Note that for some reason, a spurious space is tacked
6996 onto the end of the args in some (at least one anyway)
6997 implementations, so strip it off if it exists. */
7000 char *command = elf_tdata (abfd)->core_command;
7001 int n = strlen (command);
7003 if (0 < n && command[n - 1] == ' ')
7004 command[n - 1] = '\0';
7009 #define ELF_ARCH bfd_arch_frv
7010 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
7011 #define ELF_MAXPAGESIZE 0x1000
7013 #define TARGET_BIG_SYM bfd_elf32_frv_vec
7014 #define TARGET_BIG_NAME "elf32-frv"
7016 #define elf_info_to_howto frv_info_to_howto_rela
7017 #define elf_backend_relocate_section elf32_frv_relocate_section
7018 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
7019 #define elf_backend_check_relocs elf32_frv_check_relocs
7020 #define elf_backend_object_p elf32_frv_object_p
7021 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
7023 #define elf_backend_can_gc_sections 1
7024 #define elf_backend_rela_normal 1
7026 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
7027 #define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
7028 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
7029 #define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data
7030 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
7031 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
7033 #define elf_backend_want_got_sym 1
7034 #define elf_backend_got_header_size 0
7035 #define elf_backend_want_got_plt 0
7036 #define elf_backend_plt_readonly 1
7037 #define elf_backend_want_plt_sym 0
7038 #define elf_backend_plt_header_size 0
7040 #define elf_backend_finish_dynamic_sections \
7041 elf32_frv_finish_dynamic_sections
7043 #define elf_backend_grok_prstatus elf32_frv_grok_prstatus
7044 #define elf_backend_grok_psinfo elf32_frv_grok_psinfo
7046 #include "elf32-target.h"
7048 #undef ELF_MAXPAGESIZE
7049 #define ELF_MAXPAGESIZE 0x4000
7051 #undef TARGET_BIG_SYM
7052 #define TARGET_BIG_SYM bfd_elf32_frvfdpic_vec
7053 #undef TARGET_BIG_NAME
7054 #define TARGET_BIG_NAME "elf32-frvfdpic"
7056 #define elf32_bed elf32_frvfdpic_bed
7058 #undef elf_info_to_howto_rel
7059 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
7061 #undef bfd_elf32_bfd_link_hash_table_create
7062 #define bfd_elf32_bfd_link_hash_table_create \
7063 frvfdpic_elf_link_hash_table_create
7064 #undef elf_backend_always_size_sections
7065 #define elf_backend_always_size_sections \
7066 elf32_frvfdpic_always_size_sections
7067 #undef elf_backend_modify_program_headers
7068 #define elf_backend_modify_program_headers \
7069 elf32_frvfdpic_modify_program_headers
7070 #undef bfd_elf32_bfd_copy_private_bfd_data
7071 #define bfd_elf32_bfd_copy_private_bfd_data \
7072 elf32_frvfdpic_copy_private_bfd_data
7074 #undef elf_backend_create_dynamic_sections
7075 #define elf_backend_create_dynamic_sections \
7076 elf32_frvfdpic_create_dynamic_sections
7077 #undef elf_backend_adjust_dynamic_symbol
7078 #define elf_backend_adjust_dynamic_symbol \
7079 elf32_frvfdpic_adjust_dynamic_symbol
7080 #undef elf_backend_size_dynamic_sections
7081 #define elf_backend_size_dynamic_sections \
7082 elf32_frvfdpic_size_dynamic_sections
7083 #undef bfd_elf32_bfd_relax_section
7084 #define bfd_elf32_bfd_relax_section \
7085 elf32_frvfdpic_relax_section
7086 #undef elf_backend_finish_dynamic_symbol
7087 #define elf_backend_finish_dynamic_symbol \
7088 elf32_frvfdpic_finish_dynamic_symbol
7089 #undef elf_backend_finish_dynamic_sections
7090 #define elf_backend_finish_dynamic_sections \
7091 elf32_frvfdpic_finish_dynamic_sections
7093 #undef elf_backend_discard_info
7094 #define elf_backend_discard_info \
7095 frvfdpic_elf_discard_info
7096 #undef elf_backend_can_make_relative_eh_frame
7097 #define elf_backend_can_make_relative_eh_frame \
7098 frvfdpic_elf_use_relative_eh_frame
7099 #undef elf_backend_can_make_lsda_relative_eh_frame
7100 #define elf_backend_can_make_lsda_relative_eh_frame \
7101 frvfdpic_elf_use_relative_eh_frame
7102 #undef elf_backend_encode_eh_address
7103 #define elf_backend_encode_eh_address \
7104 frvfdpic_elf_encode_eh_address
7106 #undef elf_backend_may_use_rel_p
7107 #define elf_backend_may_use_rel_p 1
7108 #undef elf_backend_may_use_rela_p
7109 #define elf_backend_may_use_rela_p 1
7110 /* We use REL for dynamic relocations only. */
7111 #undef elf_backend_default_use_rela_p
7112 #define elf_backend_default_use_rela_p 1
7114 #undef elf_backend_omit_section_dynsym
7115 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
7117 #include "elf32-target.h"