1 /* FRV-specific support for 32-bit ELF.
2 Copyright 2002, 2003, 2004 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 #include "elf/dwarf2.h"
28 /* Forward declarations. */
29 static bfd_reloc_status_type elf32_frv_relocate_lo16
30 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
31 static bfd_reloc_status_type elf32_frv_relocate_hi16
32 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
33 static bfd_reloc_status_type elf32_frv_relocate_label24
34 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
35 static bfd_reloc_status_type elf32_frv_relocate_gprel12
36 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
37 bfd_byte *, bfd_vma));
38 static bfd_reloc_status_type elf32_frv_relocate_gprelu12
39 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
40 bfd_byte *, bfd_vma));
41 static bfd_reloc_status_type elf32_frv_relocate_gprello
42 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
43 bfd_byte *, bfd_vma));
44 static bfd_reloc_status_type elf32_frv_relocate_gprelhi
45 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
46 bfd_byte *, bfd_vma));
47 static reloc_howto_type *frv_reloc_type_lookup
48 PARAMS ((bfd *, bfd_reloc_code_real_type));
49 static void frv_info_to_howto_rela
50 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
51 static bfd_boolean elf32_frv_relocate_section
52 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
53 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
54 static bfd_boolean elf32_frv_add_symbol_hook
55 PARAMS (( bfd *, struct bfd_link_info *, Elf_Internal_Sym *,
56 const char **, flagword *, asection **, bfd_vma *));
57 static bfd_reloc_status_type frv_final_link_relocate
58 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
59 Elf_Internal_Rela *, bfd_vma));
60 static bfd_boolean elf32_frv_gc_sweep_hook
61 PARAMS ((bfd *, struct bfd_link_info *, asection *, const
62 Elf_Internal_Rela *));
63 static asection * elf32_frv_gc_mark_hook
64 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
65 struct elf_link_hash_entry *, Elf_Internal_Sym *));
66 static bfd_boolean elf32_frv_check_relocs
67 PARAMS ((bfd *, struct bfd_link_info *, asection *,
68 const Elf_Internal_Rela *));
69 static int elf32_frv_machine
71 static bfd_boolean elf32_frv_object_p
73 static bfd_boolean frv_elf_set_private_flags
74 PARAMS ((bfd *, flagword));
75 static bfd_boolean frv_elf_copy_private_bfd_data
76 PARAMS ((bfd *, bfd *));
77 static bfd_boolean frv_elf_merge_private_bfd_data
78 PARAMS ((bfd *, bfd *));
79 static bfd_boolean frv_elf_print_private_bfd_data
80 PARAMS ((bfd *, PTR));
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 32-bit address of the canonical 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 */
466 /* GNU extension to record C++ vtable hierarchy. */
467 static reloc_howto_type elf32_frv_vtinherit_howto =
468 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
470 2, /* size (0 = byte, 1 = short, 2 = long) */
472 FALSE, /* pc_relative */
474 complain_overflow_dont, /* complain_on_overflow */
475 NULL, /* special_function */
476 "R_FRV_GNU_VTINHERIT", /* name */
477 FALSE, /* partial_inplace */
480 FALSE); /* pcrel_offset */
482 /* GNU extension to record C++ vtable member usage. */
483 static reloc_howto_type elf32_frv_vtentry_howto =
484 HOWTO (R_FRV_GNU_VTENTRY, /* type */
486 2, /* size (0 = byte, 1 = short, 2 = long) */
488 FALSE, /* pc_relative */
490 complain_overflow_dont, /* complain_on_overflow */
491 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
492 "R_FRV_GNU_VTENTRY", /* name */
493 FALSE, /* partial_inplace */
496 FALSE); /* pcrel_offset */
498 /* The following 3 relocations are REL. The only difference to the
499 entries in the table above are that partial_inplace is TRUE. */
500 static reloc_howto_type elf32_frv_rel_32_howto =
501 HOWTO (R_FRV_32, /* type */
503 2, /* size (0 = byte, 1 = short, 2 = long) */
505 FALSE, /* pc_relative */
507 complain_overflow_bitfield, /* complain_on_overflow */
508 bfd_elf_generic_reloc, /* special_function */
509 "R_FRV_32", /* name */
510 TRUE, /* partial_inplace */
511 0xffffffff, /* src_mask */
512 0xffffffff, /* dst_mask */
513 FALSE); /* pcrel_offset */
515 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
516 HOWTO (R_FRV_FUNCDESC, /* type */
518 2, /* size (0 = byte, 1 = short, 2 = long) */
520 FALSE, /* pc_relative */
522 complain_overflow_bitfield, /* complain_on_overflow */
523 bfd_elf_generic_reloc, /* special_function */
524 "R_FRV_FUNCDESC", /* name */
525 TRUE, /* partial_inplace */
526 0xffffffff, /* src_mask */
527 0xffffffff, /* dst_mask */
528 FALSE); /* pcrel_offset */
530 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
531 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
533 2, /* size (0 = byte, 1 = short, 2 = long) */
535 FALSE, /* pc_relative */
537 complain_overflow_bitfield, /* complain_on_overflow */
538 bfd_elf_generic_reloc, /* special_function */
539 "R_FRV_FUNCDESC_VALUE", /* name */
540 TRUE, /* partial_inplace */
541 0xffffffff, /* src_mask */
542 0xffffffff, /* dst_mask */
543 FALSE); /* pcrel_offset */
546 /* Map BFD reloc types to FRV ELF reloc types. */
550 unsigned int bfd_reloc_val;
551 unsigned int frv_reloc_val;
554 static const struct frv_reloc_map frv_reloc_map [] =
556 { BFD_RELOC_NONE, R_FRV_NONE },
557 { BFD_RELOC_32, R_FRV_32 },
558 { BFD_RELOC_FRV_LABEL16, R_FRV_LABEL16 },
559 { BFD_RELOC_FRV_LABEL24, R_FRV_LABEL24 },
560 { BFD_RELOC_FRV_LO16, R_FRV_LO16 },
561 { BFD_RELOC_FRV_HI16, R_FRV_HI16 },
562 { BFD_RELOC_FRV_GPREL12, R_FRV_GPREL12 },
563 { BFD_RELOC_FRV_GPRELU12, R_FRV_GPRELU12 },
564 { BFD_RELOC_FRV_GPREL32, R_FRV_GPREL32 },
565 { BFD_RELOC_FRV_GPRELHI, R_FRV_GPRELHI },
566 { BFD_RELOC_FRV_GPRELLO, R_FRV_GPRELLO },
567 { BFD_RELOC_FRV_GOT12, R_FRV_GOT12 },
568 { BFD_RELOC_FRV_GOTHI, R_FRV_GOTHI },
569 { BFD_RELOC_FRV_GOTLO, R_FRV_GOTLO },
570 { BFD_RELOC_FRV_FUNCDESC, R_FRV_FUNCDESC },
571 { BFD_RELOC_FRV_FUNCDESC_GOT12, R_FRV_FUNCDESC_GOT12 },
572 { BFD_RELOC_FRV_FUNCDESC_GOTHI, R_FRV_FUNCDESC_GOTHI },
573 { BFD_RELOC_FRV_FUNCDESC_GOTLO, R_FRV_FUNCDESC_GOTLO },
574 { BFD_RELOC_FRV_FUNCDESC_VALUE, R_FRV_FUNCDESC_VALUE },
575 { BFD_RELOC_FRV_FUNCDESC_GOTOFF12, R_FRV_FUNCDESC_GOTOFF12 },
576 { BFD_RELOC_FRV_FUNCDESC_GOTOFFHI, R_FRV_FUNCDESC_GOTOFFHI },
577 { BFD_RELOC_FRV_FUNCDESC_GOTOFFLO, R_FRV_FUNCDESC_GOTOFFLO },
578 { BFD_RELOC_FRV_GOTOFF12, R_FRV_GOTOFF12 },
579 { BFD_RELOC_FRV_GOTOFFHI, R_FRV_GOTOFFHI },
580 { BFD_RELOC_FRV_GOTOFFLO, R_FRV_GOTOFFLO },
581 { BFD_RELOC_VTABLE_INHERIT, R_FRV_GNU_VTINHERIT },
582 { BFD_RELOC_VTABLE_ENTRY, R_FRV_GNU_VTENTRY },
586 extern const bfd_target bfd_elf32_frvfdpic_vec;
587 #define IS_FDPIC(bfd) ((bfd)->xvec == &bfd_elf32_frvfdpic_vec)
589 /* An extension of the elf hash table data structure, containing some
590 additional FRV-specific data. */
591 struct frvfdpic_elf_link_hash_table
593 struct elf_link_hash_table elf;
595 /* A pointer to the .got section. */
597 /* A pointer to the .rel.got section. */
599 /* A pointer to the .rofixup section. */
601 /* A pointer to the .plt section. */
603 /* A pointer to the .rel.plt section. */
605 /* GOT base offset. */
607 /* Location of the first non-lazy PLT entry, i.e., the number of
608 bytes taken by lazy PLT entries. */
610 /* A hash table holding information about which symbols were
611 referenced with which PIC-related relocations. */
612 struct htab *relocs_info;
615 /* Get the FRV ELF linker hash table from a link_info structure. */
617 #define frvfdpic_hash_table(info) \
618 ((struct frvfdpic_elf_link_hash_table *) ((info)->hash))
620 #define frvfdpic_got_section(info) \
621 (frvfdpic_hash_table (info)->sgot)
622 #define frvfdpic_gotrel_section(info) \
623 (frvfdpic_hash_table (info)->sgotrel)
624 #define frvfdpic_gotfixup_section(info) \
625 (frvfdpic_hash_table (info)->sgotfixup)
626 #define frvfdpic_plt_section(info) \
627 (frvfdpic_hash_table (info)->splt)
628 #define frvfdpic_pltrel_section(info) \
629 (frvfdpic_hash_table (info)->spltrel)
630 #define frvfdpic_relocs_info(info) \
631 (frvfdpic_hash_table (info)->relocs_info)
632 #define frvfdpic_got_initial_offset(info) \
633 (frvfdpic_hash_table (info)->got0)
634 #define frvfdpic_plt_initial_offset(info) \
635 (frvfdpic_hash_table (info)->plt0)
637 /* Create an FRV ELF linker hash table. */
639 static struct bfd_link_hash_table *
640 frvfdpic_elf_link_hash_table_create (bfd *abfd)
642 struct frvfdpic_elf_link_hash_table *ret;
643 bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
645 ret = bfd_zalloc (abfd, amt);
649 if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd,
650 _bfd_elf_link_hash_newfunc))
656 return &ret->elf.root;
659 /* Decide whether a reference to a symbol can be resolved locally or
660 not. If the symbol is protected, we want the local address, but
661 its function descriptor must be assigned by the dynamic linker. */
662 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
663 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
664 || ! elf_hash_table (INFO)->dynamic_sections_created \
665 || (/* The condition below is an ugly hack to get .scommon data to
666 be regarded as local. For some reason the
667 ELF_LINK_HASH_DEF_REGULAR bit is not set on such common
668 symbols, and the SEC_IS_COMMON bit is not set any longer
669 when we need to perform this test. Hopefully this
670 approximation is good enough. */ \
671 ((H)->root.type == bfd_link_hash_defined \
672 || (H)->root.type == bfd_link_hash_defweak) \
673 && (H)->root.u.def.section->output_section \
674 && ((H)->root.u.def.section->flags & SEC_LINKER_CREATED)))
675 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
676 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
678 /* This structure collects information on what kind of GOT, PLT or
679 function descriptors are required by relocations that reference a
681 struct frvfdpic_relocs_info
683 /* The index of the symbol, as stored in the relocation r_info, if
684 we have a local symbol; -1 otherwise. */
688 /* The input bfd in which the symbol is defined, if it's a local
691 /* If symndx == -1, the hash table entry corresponding to a global
692 symbol (even if it turns out to bind locally, in which case it
693 should ideally be replaced with section's symndx + addend). */
694 struct elf_link_hash_entry *h;
696 /* The addend of the relocation that references the symbol. */
699 /* The fields above are used to identify an entry. The fields below
700 contain information on how an entry is used and, later on, which
701 locations it was assigned. */
702 /* The following 3 fields record whether the symbol+addend above was
703 ever referenced with a GOT relocation. The 12 suffix indicates a
704 GOT12 relocation; los is used for GOTLO relocations that are not
705 matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
710 /* Whether a FUNCDESC relocation references symbol+addend. */
712 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
715 unsigned fdgothilo:1;
716 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
718 unsigned fdgofflos:1;
719 unsigned fdgoffhilo:1;
720 /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
721 GOTOFFHI relocations. The addend doesn't really matter, since we
722 envision that this will only be used to check whether the symbol
723 is mapped to the same segment as the got. */
725 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
727 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
730 /* Whether we need a PLT entry for a symbol. Should be implied by
732 (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
734 /* Whether a function descriptor should be created in this link unit
735 for symbol+addend. Should be implied by something like:
736 (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
737 || ((fd || fdgot12 || fdgotlos || fdgothilo)
738 && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
740 /* Whether a lazy PLT entry is needed for this symbol+addend.
741 Should be implied by something like:
742 (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
743 && ! (info->flags & DF_BIND_NOW)) */
745 /* Whether we've already emitted GOT relocations and PLT entries as
746 needed for this symbol. */
749 /* The number of R_FRV_32, R_FRV_FUNCDESC and R_FRV_FUNCDESC_VALUE
750 relocations referencing the symbol. */
751 unsigned relocs32, relocsfd, relocsfdv;
753 /* The number of .rofixups entries and dynamic relocations allocated
754 for this symbol, minus any that might have already been used. */
755 unsigned fixups, dynrelocs;
757 /* The offsets of the GOT entries assigned to symbol+addend, to the
758 function descriptor's address, and to a function descriptor,
759 respectively. Should be zero if unassigned. The offsets are
760 counted from the value that will be assigned to the PIC register,
761 not from the beginning of the .got section. */
762 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
763 /* The offsets of the PLT entries assigned to symbol+addend,
764 non-lazy and lazy, respectively. If unassigned, should be
766 bfd_vma plt_entry, lzplt_entry;
769 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
771 frvfdpic_relocs_info_hash (const void *entry_)
773 const struct frvfdpic_relocs_info *entry = entry_;
775 return (entry->symndx == -1
776 ? entry->d.h->root.root.hash
777 : entry->symndx + entry->d.abfd->id * 257) + entry->addend;
780 /* Test whether the key fields of two frvfdpic_relocs_info entries are
783 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
785 const struct frvfdpic_relocs_info *e1 = entry1;
786 const struct frvfdpic_relocs_info *e2 = entry2;
788 return e1->symndx == e2->symndx && e1->addend == e2->addend
789 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
792 /* Find or create an entry in a hash table HT that matches the key
793 fields of the given ENTRY. If it's not found, memory for a new
794 entry is allocated in ABFD's obstack. */
795 static struct frvfdpic_relocs_info *
796 frvfdpic_relocs_info_find (struct htab *ht,
798 const struct frvfdpic_relocs_info *entry,
799 enum insert_option insert)
801 struct frvfdpic_relocs_info **loc =
802 (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
810 *loc = bfd_zalloc (abfd, sizeof (**loc));
815 (*loc)->symndx = entry->symndx;
816 (*loc)->d = entry->d;
817 (*loc)->addend = entry->addend;
818 (*loc)->plt_entry = (bfd_vma)-1;
819 (*loc)->lzplt_entry = (bfd_vma)-1;
824 /* Obtain the address of the entry in HT associated with H's symbol +
825 addend, creating a new entry if none existed. ABFD is only used
826 for memory allocation purposes. */
827 inline static struct frvfdpic_relocs_info *
828 frvfdpic_relocs_info_for_global (struct htab *ht,
830 struct elf_link_hash_entry *h,
832 enum insert_option insert)
834 struct frvfdpic_relocs_info entry;
838 entry.addend = addend;
840 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
843 /* Obtain the address of the entry in HT associated with the SYMNDXth
844 local symbol of the input bfd ABFD, plus the addend, creating a new
845 entry if none existed. */
846 inline static struct frvfdpic_relocs_info *
847 frvfdpic_relocs_info_for_local (struct htab *ht,
851 enum insert_option insert)
853 struct frvfdpic_relocs_info entry;
855 entry.symndx = symndx;
857 entry.addend = addend;
859 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
862 /* Merge fields set by check_relocs() of two entries that end up being
863 mapped to the same (presumably global) symbol. */
866 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
867 struct frvfdpic_relocs_info const *e1)
869 e2->got12 |= e1->got12;
870 e2->gotlos |= e1->gotlos;
871 e2->gothilo |= e1->gothilo;
873 e2->fdgot12 |= e1->fdgot12;
874 e2->fdgotlos |= e1->fdgotlos;
875 e2->fdgothilo |= e1->fdgothilo;
876 e2->fdgoff12 |= e1->fdgoff12;
877 e2->fdgofflos |= e1->fdgofflos;
878 e2->fdgoffhilo |= e1->fdgoffhilo;
879 e2->gotoff |= e1->gotoff;
880 e2->call |= e1->call;
884 /* These are set in _frvfdpic_count_got_plt_entries() or later, and this
885 function is only called in _frvfdpic_resolve_final_relocs_info(), that
886 runs just before it, so we don't have to worry about the fields
890 e2->privfd |= e1->privfd;
891 e2->lazyplt |= e1->lazyplt;
892 e2->done |= e1->done;
894 e2->relocs32 += e1->relocs32;
895 e2->relocsfd += e1->relocsfd;
896 e2->relocsfdv += e1->relocsfdv;
897 e2->fixups += e1->fixups;
898 e2->dynrelocs += e1->dynrelocs;
900 if (abs (e1->got_entry) < abs (e2->got_entry))
901 e2->got_entry = e1->got_entry;
902 if (abs (e1->fdgot_entry) < abs (e2->fdgot_entry))
903 e2->fdgot_entry = e1->fdgot_entry;
904 if (abs (e1->fd_entry) < abs (e2->fd_entry))
905 e2->fd_entry = e1->fd_entry;
907 if (e1->plt_entry < e2->plt_entry)
908 e2->plt_entry = e1->plt_entry;
909 if (e1->lzplt_entry < e2->lzplt_entry)
910 e2->lzplt_entry = e1->lzplt_entry;
914 /* Every block of 65535 lazy PLT entries shares a single call to the
915 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
916 32767, counting from 0). All other lazy PLT entries branch to it
917 in a single instruction. */
919 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
920 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
922 /* Add a dynamic relocation to the SRELOC section. */
924 inline static bfd_vma
925 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
926 int reloc_type, long dynindx, bfd_vma addend,
927 struct frvfdpic_relocs_info *entry)
929 Elf_Internal_Rela outrel;
930 bfd_vma reloc_offset;
932 outrel.r_offset = offset;
933 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
934 outrel.r_addend = addend;
936 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
937 BFD_ASSERT (reloc_offset < sreloc->_raw_size);
938 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
939 sreloc->contents + reloc_offset);
940 sreloc->reloc_count++;
942 BFD_ASSERT (entry->dynrelocs > 0);
948 /* Add a fixup to the ROFIXUP section. */
951 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
952 struct frvfdpic_relocs_info *entry)
954 bfd_vma fixup_offset;
956 if (rofixup->flags & SEC_EXCLUDE)
959 fixup_offset = rofixup->reloc_count * 4;
960 if (rofixup->contents)
962 BFD_ASSERT (fixup_offset < rofixup->_raw_size);
963 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
965 rofixup->reloc_count++;
969 BFD_ASSERT (entry->fixups > 0);
976 /* Find the segment number in which OSEC, and output section, is
980 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
982 struct elf_segment_map *m;
983 Elf_Internal_Phdr *p;
985 /* Find the segment that contains the output_section. */
986 for (m = elf_tdata (output_bfd)->segment_map,
987 p = elf_tdata (output_bfd)->phdr;
993 for (i = m->count - 1; i >= 0; i--)
994 if (m->sections[i] == osec)
1001 return p - elf_tdata (output_bfd)->phdr;
1004 inline static bfd_boolean
1005 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1007 unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1009 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1012 /* Generate relocations for GOT entries, function descriptors, and
1013 code for PLT and lazy PLT entries. */
1015 inline static bfd_boolean
1016 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1018 struct bfd_link_info *info,
1020 Elf_Internal_Sym *sym,
1024 bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1031 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry)
1033 /* If the symbol is dynamic, consider it for dynamic
1034 relocations, otherwise decay to section + offset. */
1035 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1036 dynindx = entry->d.h->dynindx;
1039 if (sec->output_section
1040 && ! bfd_is_abs_section (sec->output_section)
1041 && ! bfd_is_und_section (sec->output_section))
1042 dynindx = elf_section_data (sec->output_section)->dynindx;
1048 /* Generate relocation for GOT entry pointing to the symbol. */
1049 if (entry->got_entry)
1052 bfd_vma ad = addend;
1054 /* If the symbol is dynamic but binds locally, use
1056 if (sec && (entry->symndx != -1
1057 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1059 if (entry->symndx == -1)
1060 ad += entry->d.h->root.u.def.value;
1062 ad += sym->st_value;
1063 ad += sec->output_offset;
1064 if (sec->output_section && elf_section_data (sec->output_section))
1065 idx = elf_section_data (sec->output_section)->dynindx;
1070 /* If we're linking an executable at a fixed address, we can
1071 omit the dynamic relocation as long as the symbol is local to
1073 if (info->executable && !info->pie
1074 && (entry->symndx != -1
1075 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1078 ad += sec->output_section->vma;
1079 if (entry->symndx != -1
1080 || entry->d.h->root.type != bfd_link_hash_undefweak)
1081 _frvfdpic_add_rofixup (output_bfd,
1082 frvfdpic_gotfixup_section (info),
1083 frvfdpic_got_section (info)->output_section
1085 + frvfdpic_got_section (info)->output_offset
1086 + frvfdpic_got_initial_offset (info)
1087 + entry->got_entry, entry);
1090 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1091 _bfd_elf_section_offset
1093 frvfdpic_got_section (info),
1094 frvfdpic_got_initial_offset (info)
1096 + frvfdpic_got_section (info)
1097 ->output_section->vma
1098 + frvfdpic_got_section (info)->output_offset,
1099 R_FRV_32, idx, ad, entry);
1101 bfd_put_32 (output_bfd, ad,
1102 frvfdpic_got_section (info)->contents
1103 + frvfdpic_got_initial_offset (info)
1104 + entry->got_entry);
1107 /* Generate relocation for GOT entry pointing to a canonical
1108 function descriptor. */
1109 if (entry->fdgot_entry)
1114 if (! (entry->symndx == -1
1115 && entry->d.h->root.type == bfd_link_hash_undefweak
1116 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1118 /* If the symbol is dynamic and there may be dynamic symbol
1119 resolution because we are, or are linked with, a shared
1120 library, emit a FUNCDESC relocation such that the dynamic
1121 linker will allocate the function descriptor. If the
1122 symbol needs a non-local function descriptor but binds
1123 locally (e.g., its visibility is protected, emit a
1124 dynamic relocation decayed to section+offset. */
1125 if (entry->symndx == -1
1126 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1127 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1128 && !(info->executable && !info->pie))
1130 reloc = R_FRV_FUNCDESC;
1131 idx = elf_section_data (entry->d.h->root.u.def.section
1132 ->output_section)->dynindx;
1133 ad = entry->d.h->root.u.def.section->output_offset
1134 + entry->d.h->root.u.def.value;
1136 else if (entry->symndx == -1
1137 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1139 reloc = R_FRV_FUNCDESC;
1147 /* Otherwise, we know we have a private function descriptor,
1148 so reference it directly. */
1149 if (elf_hash_table (info)->dynamic_sections_created)
1150 BFD_ASSERT (entry->privfd);
1152 idx = elf_section_data (frvfdpic_got_section (info)
1153 ->output_section)->dynindx;
1154 ad = frvfdpic_got_section (info)->output_offset
1155 + frvfdpic_got_initial_offset (info) + entry->fd_entry;
1158 /* If there is room for dynamic symbol resolution, emit the
1159 dynamic relocation. However, if we're linking an
1160 executable at a fixed location, we won't have emitted a
1161 dynamic symbol entry for the got section, so idx will be
1162 zero, which means we can and should compute the address
1163 of the private descriptor ourselves. */
1164 if (info->executable && !info->pie
1165 && (entry->symndx != -1
1166 || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1168 ad += frvfdpic_got_section (info)->output_section->vma;
1169 _frvfdpic_add_rofixup (output_bfd,
1170 frvfdpic_gotfixup_section (info),
1171 frvfdpic_got_section (info)
1172 ->output_section->vma
1173 + frvfdpic_got_section (info)
1175 + frvfdpic_got_initial_offset (info)
1176 + entry->fdgot_entry, entry);
1179 _frvfdpic_add_dyn_reloc (output_bfd,
1180 frvfdpic_gotrel_section (info),
1181 _bfd_elf_section_offset
1183 frvfdpic_got_section (info),
1184 frvfdpic_got_initial_offset (info)
1185 + entry->fdgot_entry)
1186 + frvfdpic_got_section (info)
1187 ->output_section->vma
1188 + frvfdpic_got_section (info)
1190 reloc, idx, ad, entry);
1193 bfd_put_32 (output_bfd, ad,
1194 frvfdpic_got_section (info)->contents
1195 + frvfdpic_got_initial_offset (info)
1196 + entry->fdgot_entry);
1199 /* Generate relocation to fill in a private function descriptor in
1201 if (entry->fd_entry)
1204 bfd_vma ad = addend;
1206 long lowword, highword;
1208 /* If the symbol is dynamic but binds locally, use
1210 if (sec && (entry->symndx != -1
1211 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1213 if (entry->symndx == -1)
1214 ad += entry->d.h->root.u.def.value;
1216 ad += sym->st_value;
1217 ad += sec->output_offset;
1218 if (sec->output_section && elf_section_data (sec->output_section))
1219 idx = elf_section_data (sec->output_section)->dynindx;
1224 /* If we're linking an executable at a fixed address, we can
1225 omit the dynamic relocation as long as the symbol is local to
1227 if (info->executable && !info->pie
1228 && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1231 ad += sec->output_section->vma;
1233 if (entry->symndx != -1
1234 || entry->d.h->root.type != bfd_link_hash_undefweak)
1236 _frvfdpic_add_rofixup (output_bfd,
1237 frvfdpic_gotfixup_section (info),
1238 frvfdpic_got_section (info)
1239 ->output_section->vma
1240 + frvfdpic_got_section (info)
1242 + frvfdpic_got_initial_offset (info)
1243 + entry->fd_entry, entry);
1244 _frvfdpic_add_rofixup (output_bfd,
1245 frvfdpic_gotfixup_section (info),
1246 frvfdpic_got_section (info)
1247 ->output_section->vma
1248 + frvfdpic_got_section (info)
1250 + frvfdpic_got_initial_offset (info)
1251 + entry->fd_entry + 4, entry);
1257 _frvfdpic_add_dyn_reloc (output_bfd,
1259 ? frvfdpic_pltrel_section (info)
1260 : frvfdpic_gotrel_section (info),
1261 _bfd_elf_section_offset
1263 frvfdpic_got_section (info),
1264 frvfdpic_got_initial_offset (info)
1266 + frvfdpic_got_section (info)
1267 ->output_section->vma
1268 + frvfdpic_got_section (info)
1270 R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1273 /* If we've omitted the dynamic relocation, just emit the fixed
1274 addresses of the symbol and of the local GOT base offset. */
1275 if (info->executable && !info->pie && sec && sec->output_section)
1278 highword = frvfdpic_got_section (info)->output_section->vma
1279 + frvfdpic_got_section (info)->output_offset
1280 + frvfdpic_got_initial_offset (info);
1282 else if (entry->lazyplt)
1287 fd_lazy_rel_offset = ofst;
1289 /* A function descriptor used for lazy or local resolving is
1290 initialized such that its high word contains the output
1291 section index in which the PLT entries are located, and
1292 the low word contains the address of the lazy PLT entry
1293 entry point, that must be within the memory region
1294 assigned to that section. */
1295 lowword = entry->lzplt_entry + 4
1296 + frvfdpic_plt_section (info)->output_offset
1297 + frvfdpic_plt_section (info)->output_section->vma;
1298 highword = _frvfdpic_osec_to_segment
1299 (output_bfd, frvfdpic_plt_section (info)->output_section);
1303 /* A function descriptor for a local function gets the index
1304 of the section. For a non-local function, it's
1307 if (entry->symndx == -1 && entry->d.h->dynindx != -1
1308 && entry->d.h->dynindx == idx)
1311 highword = _frvfdpic_osec_to_segment
1312 (output_bfd, sec->output_section);
1315 bfd_put_32 (output_bfd, lowword,
1316 frvfdpic_got_section (info)->contents
1317 + frvfdpic_got_initial_offset (info)
1319 bfd_put_32 (output_bfd, highword,
1320 frvfdpic_got_section (info)->contents
1321 + frvfdpic_got_initial_offset (info)
1322 + entry->fd_entry + 4);
1325 /* Generate code for the PLT entry. */
1326 if (entry->plt_entry != (bfd_vma) -1)
1328 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1331 BFD_ASSERT (entry->fd_entry);
1333 /* Figure out what kind of PLT entry we need, depending on the
1334 location of the function descriptor within the GOT. */
1335 if (entry->fd_entry >= -(1 << (12 - 1))
1336 && entry->fd_entry < (1 << (12 - 1)))
1338 /* lddi @(gr15, fd_entry), gr14 */
1339 bfd_put_32 (output_bfd,
1340 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1346 if (entry->fd_entry >= -(1 << (16 - 1))
1347 && entry->fd_entry < (1 << (16 - 1)))
1349 /* setlos lo(fd_entry), gr14 */
1350 bfd_put_32 (output_bfd,
1352 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1358 /* sethi.p hi(fd_entry), gr14
1359 setlo lo(fd_entry), gr14 */
1360 bfd_put_32 (output_bfd,
1362 | ((entry->fd_entry >> 16)
1363 & (((bfd_vma)1 << 16) - 1)),
1365 bfd_put_32 (output_bfd,
1367 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1371 /* ldd @(gr14,gr15),gr14 */
1372 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1375 /* jmpl @(gr14,gr0) */
1376 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1379 /* Generate code for the lazy PLT entry. */
1380 if (entry->lzplt_entry != (bfd_vma) -1)
1382 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1383 + entry->lzplt_entry;
1384 bfd_vma resolverStub_addr;
1386 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1389 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1390 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1391 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1392 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1394 if (entry->lzplt_entry == resolverStub_addr)
1396 /* This is a lazy PLT entry that includes a resolver call. */
1397 /* ldd @(gr15,gr0), gr4
1399 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1400 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1404 /* bra resolverStub */
1405 bfd_put_32 (output_bfd,
1407 | (((resolverStub_addr - entry->lzplt_entry)
1408 / 4) & (((bfd_vma)1 << 16) - 1)),
1416 /* Handle an FRV small data reloc. */
1418 static bfd_reloc_status_type
1419 elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation,
1421 struct bfd_link_info *info;
1423 asection *input_section;
1424 Elf_Internal_Rela *relocation;
1430 struct bfd_link_hash_entry *h;
1432 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
1434 gp = (h->u.def.value
1435 + h->u.def.section->output_section->vma
1436 + h->u.def.section->output_offset);
1438 value -= input_section->output_section->vma;
1439 value -= (gp - input_section->output_section->vma);
1441 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
1443 value += relocation->r_addend;
1445 if ((long) value > 0x7ff || (long) value < -0x800)
1446 return bfd_reloc_overflow;
1448 bfd_put_32 (input_bfd,
1449 (insn & 0xfffff000) | (value & 0xfff),
1450 contents + relocation->r_offset);
1452 return bfd_reloc_ok;
1455 /* Handle an FRV small data reloc. for the u12 field. */
1457 static bfd_reloc_status_type
1458 elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation,
1460 struct bfd_link_info *info;
1462 asection *input_section;
1463 Elf_Internal_Rela *relocation;
1469 struct bfd_link_hash_entry *h;
1472 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
1474 gp = (h->u.def.value
1475 + h->u.def.section->output_section->vma
1476 + h->u.def.section->output_offset);
1478 value -= input_section->output_section->vma;
1479 value -= (gp - input_section->output_section->vma);
1481 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
1483 value += relocation->r_addend;
1485 if ((long) value > 0x7ff || (long) value < -0x800)
1486 return bfd_reloc_overflow;
1488 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
1490 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
1492 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
1494 return bfd_reloc_ok;
1497 /* Handle an FRV ELF HI16 reloc. */
1499 static bfd_reloc_status_type
1500 elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value)
1502 Elf_Internal_Rela *relhi;
1508 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
1510 value += relhi->r_addend;
1511 value = ((value >> 16) & 0xffff);
1513 insn = (insn & 0xffff0000) | value;
1515 if ((long) value > 0xffff || (long) value < -0x10000)
1516 return bfd_reloc_overflow;
1518 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
1519 return bfd_reloc_ok;
1522 static bfd_reloc_status_type
1523 elf32_frv_relocate_lo16 (input_bfd, rello, contents, value)
1525 Elf_Internal_Rela *rello;
1531 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
1533 value += rello->r_addend;
1534 value = value & 0xffff;
1536 insn = (insn & 0xffff0000) | value;
1538 if ((long) value > 0xffff || (long) value < -0x10000)
1539 return bfd_reloc_overflow;
1541 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
1542 return bfd_reloc_ok;
1545 /* Perform the relocation for the CALL label24 instruction. */
1547 static bfd_reloc_status_type
1548 elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value)
1550 asection *input_section;
1551 Elf_Internal_Rela *rello;
1559 /* The format for the call instruction is:
1561 0 000000 0001111 000000000000000000
1562 label6 opcode label18
1564 The branch calculation is: pc + (4*label24)
1565 where label24 is the concatenation of label6 and label18. */
1567 /* Grab the instruction. */
1568 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
1570 value -= input_section->output_section->vma + input_section->output_offset;
1571 value -= rello->r_offset;
1572 value += rello->r_addend;
1576 label6 = value & 0xfc0000;
1577 label6 = label6 << 7;
1579 label18 = value & 0x3ffff;
1581 insn = insn & 0x803c0000;
1582 insn = insn | label6;
1583 insn = insn | label18;
1585 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
1587 return bfd_reloc_ok;
1590 static bfd_reloc_status_type
1591 elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation,
1593 struct bfd_link_info *info;
1595 asection *input_section;
1596 Elf_Internal_Rela *relocation;
1602 struct bfd_link_hash_entry *h;
1604 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
1606 gp = (h->u.def.value
1607 + h->u.def.section->output_section->vma
1608 + h->u.def.section->output_offset);
1610 value -= input_section->output_section->vma;
1611 value -= (gp - input_section->output_section->vma);
1612 value += relocation->r_addend;
1613 value = ((value >> 16) & 0xffff);
1615 if ((long) value > 0xffff || (long) value < -0x10000)
1616 return bfd_reloc_overflow;
1618 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
1619 insn = (insn & 0xffff0000) | value;
1621 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
1622 return bfd_reloc_ok;
1625 static bfd_reloc_status_type
1626 elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation,
1628 struct bfd_link_info *info;
1630 asection *input_section;
1631 Elf_Internal_Rela *relocation;
1637 struct bfd_link_hash_entry *h;
1639 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
1641 gp = (h->u.def.value
1642 + h->u.def.section->output_section->vma
1643 + h->u.def.section->output_offset);
1645 value -= input_section->output_section->vma;
1646 value -= (gp - input_section->output_section->vma);
1647 value += relocation->r_addend;
1648 value = value & 0xffff;
1650 if ((long) value > 0xffff || (long) value < -0x10000)
1651 return bfd_reloc_overflow;
1653 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
1654 insn = (insn & 0xffff0000) | value;
1656 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
1658 return bfd_reloc_ok;
1661 static reloc_howto_type *
1662 frv_reloc_type_lookup (abfd, code)
1663 bfd *abfd ATTRIBUTE_UNUSED;
1664 bfd_reloc_code_real_type code;
1671 case BFD_RELOC_NONE:
1672 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
1675 if (elf_elfheader (abfd)->e_type == ET_EXEC
1676 || elf_elfheader (abfd)->e_type == ET_DYN)
1677 return &elf32_frv_rel_32_howto;
1679 case BFD_RELOC_CTOR:
1680 return &elf32_frv_howto_table[ (int) R_FRV_32];
1682 case BFD_RELOC_FRV_LABEL16:
1683 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
1685 case BFD_RELOC_FRV_LABEL24:
1686 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
1688 case BFD_RELOC_FRV_LO16:
1689 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
1691 case BFD_RELOC_FRV_HI16:
1692 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
1694 case BFD_RELOC_FRV_GPREL12:
1695 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
1697 case BFD_RELOC_FRV_GPRELU12:
1698 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
1700 case BFD_RELOC_FRV_GPREL32:
1701 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
1703 case BFD_RELOC_FRV_GPRELHI:
1704 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
1706 case BFD_RELOC_FRV_GPRELLO:
1707 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
1709 case BFD_RELOC_FRV_GOT12:
1710 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
1712 case BFD_RELOC_FRV_GOTHI:
1713 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
1715 case BFD_RELOC_FRV_GOTLO:
1716 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
1718 case BFD_RELOC_FRV_FUNCDESC:
1719 if (elf_elfheader (abfd)->e_type == ET_EXEC
1720 || elf_elfheader (abfd)->e_type == ET_DYN)
1721 return &elf32_frv_rel_funcdesc_howto;
1722 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
1724 case BFD_RELOC_FRV_FUNCDESC_GOT12:
1725 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
1727 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
1728 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
1730 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
1731 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
1733 case BFD_RELOC_FRV_FUNCDESC_VALUE:
1734 if (elf_elfheader (abfd)->e_type == ET_EXEC
1735 || elf_elfheader (abfd)->e_type == ET_DYN)
1736 return &elf32_frv_rel_funcdesc_value_howto;
1737 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
1739 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
1740 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
1742 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
1743 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
1745 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
1746 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
1748 case BFD_RELOC_FRV_GOTOFF12:
1749 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
1751 case BFD_RELOC_FRV_GOTOFFHI:
1752 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
1754 case BFD_RELOC_FRV_GOTOFFLO:
1755 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
1757 case BFD_RELOC_VTABLE_INHERIT:
1758 return &elf32_frv_vtinherit_howto;
1760 case BFD_RELOC_VTABLE_ENTRY:
1761 return &elf32_frv_vtentry_howto;
1767 /* Set the howto pointer for an FRV ELF reloc. */
1770 frv_info_to_howto_rela (abfd, cache_ptr, dst)
1771 bfd *abfd ATTRIBUTE_UNUSED;
1773 Elf_Internal_Rela *dst;
1775 unsigned int r_type;
1777 r_type = ELF32_R_TYPE (dst->r_info);
1780 case R_FRV_GNU_VTINHERIT:
1781 cache_ptr->howto = &elf32_frv_vtinherit_howto;
1784 case R_FRV_GNU_VTENTRY:
1785 cache_ptr->howto = &elf32_frv_vtentry_howto;
1789 cache_ptr->howto = & elf32_frv_howto_table [r_type];
1794 /* Set the howto pointer for an FRV ELF REL reloc. */
1796 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1797 arelent *cache_ptr, Elf_Internal_Rela *dst)
1799 unsigned int r_type;
1801 r_type = ELF32_R_TYPE (dst->r_info);
1805 cache_ptr->howto = &elf32_frv_rel_32_howto;
1808 case R_FRV_FUNCDESC:
1809 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
1812 case R_FRV_FUNCDESC_VALUE:
1813 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
1817 cache_ptr->howto = NULL;
1822 /* Perform a single relocation. By default we use the standard BFD
1823 routines, but a few relocs, we have to do them ourselves. */
1825 static bfd_reloc_status_type
1826 frv_final_link_relocate (howto, input_bfd, input_section, contents, rel,
1828 reloc_howto_type *howto;
1830 asection *input_section;
1832 Elf_Internal_Rela *rel;
1835 return _bfd_final_link_relocate (howto, input_bfd, input_section,
1836 contents, rel->r_offset, relocation,
1841 /* Relocate an FRV ELF section.
1843 The RELOCATE_SECTION function is called by the new ELF backend linker
1844 to handle the relocations for a section.
1846 The relocs are always passed as Rela structures; if the section
1847 actually uses Rel structures, the r_addend field will always be
1850 This function is responsible for adjusting the section contents as
1851 necessary, and (if using Rela relocs and generating a relocatable
1852 output file) adjusting the reloc addend as necessary.
1854 This function does not have to worry about setting the reloc
1855 address or the reloc symbol index.
1857 LOCAL_SYMS is a pointer to the swapped in local symbols.
1859 LOCAL_SECTIONS is an array giving the section in the input file
1860 corresponding to the st_shndx field of each local symbol.
1862 The global hash table entry for the global symbols can be found
1863 via elf_sym_hashes (input_bfd).
1865 When generating relocatable output, this function must handle
1866 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
1867 going to be the section symbol corresponding to the output
1868 section, which means that the addend must be adjusted
1872 elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
1873 contents, relocs, local_syms, local_sections)
1874 bfd *output_bfd ATTRIBUTE_UNUSED;
1875 struct bfd_link_info *info;
1877 asection *input_section;
1879 Elf_Internal_Rela *relocs;
1880 Elf_Internal_Sym *local_syms;
1881 asection **local_sections;
1883 Elf_Internal_Shdr *symtab_hdr;
1884 struct elf_link_hash_entry **sym_hashes;
1885 Elf_Internal_Rela *rel;
1886 Elf_Internal_Rela *relend;
1887 unsigned isec_segment, got_segment, plt_segment, gprel_segment,
1889 int silence_segment_error = !(info->shared || info->pie);
1891 if (info->relocatable)
1894 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
1895 sym_hashes = elf_sym_hashes (input_bfd);
1896 relend = relocs + input_section->reloc_count;
1898 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
1899 input_section->output_section);
1900 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
1901 got_segment = _frvfdpic_osec_to_segment (output_bfd,
1902 frvfdpic_got_section (info)
1906 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
1907 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
1908 frvfdpic_gotfixup_section (info)
1912 if (IS_FDPIC (output_bfd) && elf_hash_table (info)->dynamic_sections_created)
1913 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
1914 frvfdpic_plt_section (info)
1919 for (rel = relocs; rel < relend; rel ++)
1921 reloc_howto_type *howto;
1922 unsigned long r_symndx;
1923 Elf_Internal_Sym *sym;
1925 struct elf_link_hash_entry *h;
1927 bfd_reloc_status_type r;
1928 const char * name = NULL;
1931 struct frvfdpic_relocs_info *picrel;
1932 bfd_vma orig_addend = rel->r_addend;
1934 r_type = ELF32_R_TYPE (rel->r_info);
1936 if ( r_type == R_FRV_GNU_VTINHERIT
1937 || r_type == R_FRV_GNU_VTENTRY)
1940 /* This is a final link. */
1941 r_symndx = ELF32_R_SYM (rel->r_info);
1942 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
1947 if (r_symndx < symtab_hdr->sh_info)
1949 sym = local_syms + r_symndx;
1950 osec = sec = local_sections [r_symndx];
1951 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1953 name = bfd_elf_string_from_elf_section
1954 (input_bfd, symtab_hdr->sh_link, sym->st_name);
1955 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
1959 h = sym_hashes [r_symndx - symtab_hdr->sh_info];
1961 while (h->root.type == bfd_link_hash_indirect
1962 || h->root.type == bfd_link_hash_warning)
1963 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1965 name = h->root.root.string;
1967 if ((h->root.type == bfd_link_hash_defined
1968 || h->root.type == bfd_link_hash_defweak)
1969 && ! FRVFDPIC_SYM_LOCAL (info, h))
1975 if (h->root.type == bfd_link_hash_defined
1976 || h->root.type == bfd_link_hash_defweak)
1978 sec = h->root.u.def.section;
1979 relocation = (h->root.u.def.value
1980 + sec->output_section->vma
1981 + sec->output_offset);
1983 else if (h->root.type == bfd_link_hash_undefweak)
1987 else if (info->unresolved_syms_in_objects == RM_IGNORE
1988 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1992 if (! ((*info->callbacks->undefined_symbol)
1993 (info, h->root.root.string, input_bfd,
1994 input_section, rel->r_offset,
1995 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1996 || ELF_ST_VISIBILITY (h->other)))))
2007 if (! IS_FDPIC (output_bfd))
2013 case R_FRV_FUNCDESC_GOT12:
2014 case R_FRV_FUNCDESC_GOTHI:
2015 case R_FRV_FUNCDESC_GOTLO:
2016 case R_FRV_GOTOFF12:
2017 case R_FRV_GOTOFFHI:
2018 case R_FRV_GOTOFFLO:
2019 case R_FRV_FUNCDESC_GOTOFF12:
2020 case R_FRV_FUNCDESC_GOTOFFHI:
2021 case R_FRV_FUNCDESC_GOTOFFLO:
2022 case R_FRV_FUNCDESC:
2023 case R_FRV_FUNCDESC_VALUE:
2025 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2026 (info), input_bfd, h,
2027 orig_addend, INSERT);
2029 /* In order to find the entry we created before, we must
2030 use the original addend, not the one that may have been
2031 modified by _bfd_elf_rela_local_sym(). */
2032 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2033 (info), input_bfd, r_symndx,
2034 orig_addend, INSERT);
2038 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2042 (*_bfd_error_handler)
2043 (_("%s: relocation at `%s+0x%x' references symbol `%s' with nonzero addend"),
2044 bfd_archive_filename (input_bfd), input_section->name,
2045 rel->r_offset, name);
2055 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
2057 info->callbacks->warning
2058 (info, _("relocation references symbol not defined in the module"),
2059 name, input_bfd, input_section, rel->r_offset);
2068 check_segment[0] = isec_segment;
2069 if (! IS_FDPIC (output_bfd))
2070 check_segment[1] = isec_segment;
2071 else if (picrel->plt)
2073 relocation = frvfdpic_plt_section (info)->output_section->vma
2074 + frvfdpic_plt_section (info)->output_offset
2075 + picrel->plt_entry;
2076 check_segment[1] = plt_segment;
2078 /* We don't want to warn on calls to undefined weak symbols,
2079 as calls to them must be protected by non-NULL tests
2080 anyway, and unprotected calls would invoke undefined
2082 else if (picrel->symndx == -1
2083 && picrel->d.h->root.type == bfd_link_hash_undefweak)
2084 check_segment[1] = check_segment[0];
2086 check_segment[1] = sec
2087 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
2094 relocation = picrel->got_entry;
2095 check_segment[0] = check_segment[1] = got_segment;
2098 case R_FRV_FUNCDESC_GOT12:
2099 case R_FRV_FUNCDESC_GOTHI:
2100 case R_FRV_FUNCDESC_GOTLO:
2101 relocation = picrel->fdgot_entry;
2102 check_segment[0] = check_segment[1] = got_segment;
2105 case R_FRV_GOTOFFHI:
2106 case R_FRV_GOTOFF12:
2107 case R_FRV_GOTOFFLO:
2108 relocation -= frvfdpic_got_section (info)->output_section->vma
2109 + frvfdpic_got_section (info)->output_offset
2110 + frvfdpic_got_initial_offset (info);
2111 check_segment[0] = got_segment;
2112 check_segment[1] = sec
2113 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
2117 case R_FRV_FUNCDESC_GOTOFF12:
2118 case R_FRV_FUNCDESC_GOTOFFHI:
2119 case R_FRV_FUNCDESC_GOTOFFLO:
2120 relocation = picrel->fd_entry;
2121 check_segment[0] = check_segment[1] = got_segment;
2124 case R_FRV_FUNCDESC:
2127 bfd_vma addend = rel->r_addend;
2129 if (! (h && h->root.type == bfd_link_hash_undefweak
2130 && FRVFDPIC_SYM_LOCAL (info, h)))
2132 /* If the symbol is dynamic and there may be dynamic
2133 symbol resolution because we are or are linked with a
2134 shared library, emit a FUNCDESC relocation such that
2135 the dynamic linker will allocate the function
2136 descriptor. If the symbol needs a non-local function
2137 descriptor but binds locally (e.g., its visibility is
2138 protected, emit a dynamic relocation decayed to
2140 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
2141 && FRVFDPIC_SYM_LOCAL (info, h)
2142 && !(info->executable && !info->pie))
2144 dynindx = elf_section_data (h->root.u.def.section
2145 ->output_section)->dynindx;
2146 addend += h->root.u.def.section->output_offset
2147 + h->root.u.def.value;
2149 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
2153 info->callbacks->warning
2154 (info, _("R_FRV_FUNCDESC references dynamic symbol with nonzero addend"),
2155 name, input_bfd, input_section, rel->r_offset);
2158 dynindx = h->dynindx;
2162 /* Otherwise, we know we have a private function
2163 descriptor, so reference it directly. */
2164 BFD_ASSERT (picrel->privfd);
2166 dynindx = elf_section_data (frvfdpic_got_section (info)
2167 ->output_section)->dynindx;
2168 addend = frvfdpic_got_section (info)->output_offset
2169 + frvfdpic_got_initial_offset (info)
2173 /* If there is room for dynamic symbol resolution, emit
2174 the dynamic relocation. However, if we're linking an
2175 executable at a fixed location, we won't have emitted a
2176 dynamic symbol entry for the got section, so idx will
2177 be zero, which means we can and should compute the
2178 address of the private descriptor ourselves. */
2179 if (info->executable && !info->pie
2180 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
2182 addend += frvfdpic_got_section (info)->output_section->vma;
2183 if ((bfd_get_section_flags (output_bfd,
2184 input_section->output_section)
2185 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2187 if (_frvfdpic_osec_readonly_p (output_bfd,
2191 info->callbacks->warning
2193 _("cannot emit fixups in read-only section"),
2194 name, input_bfd, input_section, rel->r_offset);
2197 _frvfdpic_add_rofixup (output_bfd,
2198 frvfdpic_gotfixup_section
2200 _bfd_elf_section_offset
2202 input_section, rel->r_offset)
2204 ->output_section->vma
2205 + input_section->output_offset,
2209 else if ((bfd_get_section_flags (output_bfd,
2210 input_section->output_section)
2211 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2213 if (_frvfdpic_osec_readonly_p (output_bfd,
2217 info->callbacks->warning
2219 _("cannot emit dynamic relocations in read-only section"),
2220 name, input_bfd, input_section, rel->r_offset);
2223 _frvfdpic_add_dyn_reloc (output_bfd,
2224 frvfdpic_gotrel_section (info),
2225 _bfd_elf_section_offset
2227 input_section, rel->r_offset)
2229 ->output_section->vma
2230 + input_section->output_offset,
2231 r_type, dynindx, addend, picrel);
2234 addend += frvfdpic_got_section (info)->output_section->vma;
2237 /* We want the addend in-place because dynamic
2238 relocations are REL. Setting relocation to it should
2239 arrange for it to be installed. */
2240 relocation = addend - rel->r_addend;
2242 check_segment[0] = check_segment[1] = got_segment;
2246 if (! IS_FDPIC (output_bfd))
2248 check_segment[0] = check_segment[1] = -1;
2252 case R_FRV_FUNCDESC_VALUE:
2255 bfd_vma addend = rel->r_addend;
2257 /* If the symbol is dynamic but binds locally, use
2259 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
2261 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
2263 info->callbacks->warning
2264 (info, _("R_FRV_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
2265 name, input_bfd, input_section, rel->r_offset);
2268 dynindx = h->dynindx;
2273 addend += h->root.u.def.value;
2275 addend += sym->st_value;
2277 addend += osec->output_offset;
2278 if (osec && osec->output_section
2279 && ! bfd_is_abs_section (osec->output_section)
2280 && ! bfd_is_und_section (osec->output_section))
2281 dynindx = elf_section_data (osec->output_section)->dynindx;
2286 /* If we're linking an executable at a fixed address, we
2287 can omit the dynamic relocation as long as the symbol
2288 is defined in the current link unit (which is implied
2289 by its output section not being NULL). */
2290 if (info->executable && !info->pie
2291 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
2294 addend += osec->output_section->vma;
2295 if (IS_FDPIC (input_bfd)
2296 && (bfd_get_section_flags (output_bfd,
2297 input_section->output_section)
2298 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2300 if (_frvfdpic_osec_readonly_p (output_bfd,
2304 info->callbacks->warning
2306 _("cannot emit fixups in read-only section"),
2307 name, input_bfd, input_section, rel->r_offset);
2310 if (!h || h->root.type != bfd_link_hash_undefweak)
2312 _frvfdpic_add_rofixup (output_bfd,
2313 frvfdpic_gotfixup_section
2315 _bfd_elf_section_offset
2317 input_section, rel->r_offset)
2319 ->output_section->vma
2320 + input_section->output_offset,
2322 if (r_type == R_FRV_FUNCDESC_VALUE)
2323 _frvfdpic_add_rofixup
2325 frvfdpic_gotfixup_section (info),
2326 _bfd_elf_section_offset
2328 input_section, rel->r_offset)
2329 + input_section->output_section->vma
2330 + input_section->output_offset + 4, picrel);
2336 if ((bfd_get_section_flags (output_bfd,
2337 input_section->output_section)
2338 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2340 if (_frvfdpic_osec_readonly_p (output_bfd,
2344 info->callbacks->warning
2346 _("cannot emit dynamic relocations in read-only section"),
2347 name, input_bfd, input_section, rel->r_offset);
2350 _frvfdpic_add_dyn_reloc (output_bfd,
2351 frvfdpic_gotrel_section (info),
2352 _bfd_elf_section_offset
2354 input_section, rel->r_offset)
2356 ->output_section->vma
2357 + input_section->output_offset,
2358 r_type, dynindx, addend, picrel);
2361 addend += osec->output_section->vma;
2362 /* We want the addend in-place because dynamic
2363 relocations are REL. Setting relocation to it
2364 should arrange for it to be installed. */
2365 relocation = addend - rel->r_addend;
2368 if (r_type == R_FRV_FUNCDESC_VALUE)
2370 /* If we've omitted the dynamic relocation, just emit
2371 the fixed addresses of the symbol and of the local
2373 if (info->executable && !info->pie
2374 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
2375 bfd_put_32 (output_bfd,
2376 frvfdpic_got_section (info)->output_section->vma
2377 + frvfdpic_got_section (info)->output_offset
2378 + frvfdpic_got_initial_offset (info),
2379 contents + rel->r_offset + 4);
2381 /* A function descriptor used for lazy or local
2382 resolving is initialized such that its high word
2383 contains the output section index in which the
2384 PLT entries are located, and the low word
2385 contains the offset of the lazy PLT entry entry
2386 point into that section. */
2387 bfd_put_32 (output_bfd,
2388 h && ! FRVFDPIC_SYM_LOCAL (info, h)
2390 : _frvfdpic_osec_to_segment (output_bfd,
2393 contents + rel->r_offset + 4);
2396 check_segment[0] = check_segment[1] = got_segment;
2400 case R_FRV_GPRELU12:
2404 check_segment[0] = gprel_segment;
2405 check_segment[1] = sec
2406 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
2411 check_segment[0] = isec_segment;
2412 check_segment[1] = sec
2413 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
2418 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
2420 #if 1 /* If you take this out, remove the #error from fdpic-static-6.d
2421 in the ld testsuite. */
2422 /* This helps catch problems in GCC while we can't do more
2423 than static linking. The idea is to test whether the
2424 input file basename is crt0.o only once. */
2425 if (silence_segment_error == 1)
2426 silence_segment_error =
2427 (strlen (input_bfd->filename) == 6
2428 && strcmp (input_bfd->filename, "crt0.o") == 0)
2429 || (strlen (input_bfd->filename) > 6
2430 && strcmp (input_bfd->filename
2431 + strlen (input_bfd->filename) - 7,
2435 if (!silence_segment_error
2436 /* We don't want duplicate errors for undefined
2438 && !(picrel && picrel->symndx == -1
2439 && picrel->d.h->root.type == bfd_link_hash_undefined))
2440 info->callbacks->warning
2442 (info->shared || info->pie)
2443 ? _("relocations between different segments are not supported")
2444 : _("warning: relocation references a different segment"),
2445 name, input_bfd, input_section, rel->r_offset);
2446 if (!silence_segment_error && (info->shared || info->pie))
2448 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
2453 case R_FRV_GOTOFFHI:
2454 /* We need the addend to be applied before we shift the
2456 relocation += rel->r_addend;
2459 case R_FRV_FUNCDESC_GOTHI:
2460 case R_FRV_FUNCDESC_GOTOFFHI:
2465 case R_FRV_FUNCDESC_GOTLO:
2466 case R_FRV_GOTOFFLO:
2467 case R_FRV_FUNCDESC_GOTOFFLO:
2468 relocation &= 0xffff;
2478 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
2482 /* When referencing a GOT entry, a function descriptor or a
2483 PLT, we don't want the addend to apply to the reference,
2484 but rather to the referenced symbol. The actual entry
2485 will have already been created taking the addend into
2486 account, so cancel it out here. */
2490 case R_FRV_FUNCDESC_GOT12:
2491 case R_FRV_FUNCDESC_GOTHI:
2492 case R_FRV_FUNCDESC_GOTLO:
2493 case R_FRV_FUNCDESC_GOTOFF12:
2494 case R_FRV_FUNCDESC_GOTOFFHI:
2495 case R_FRV_FUNCDESC_GOTOFFLO:
2496 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
2497 here, since we do want to apply the addend to the others.
2498 Note that we've applied the addend to GOTOFFHI before we
2499 shifted it right. */
2500 case R_FRV_GOTOFFHI:
2501 relocation -= rel->r_addend;
2508 if (r_type == R_FRV_HI16)
2509 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
2511 else if (r_type == R_FRV_LO16)
2512 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
2514 else if (r_type == R_FRV_LABEL24)
2515 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
2516 contents, relocation);
2518 else if (r_type == R_FRV_GPREL12)
2519 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
2520 contents, relocation);
2522 else if (r_type == R_FRV_GPRELU12)
2523 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
2524 contents, relocation);
2526 else if (r_type == R_FRV_GPRELLO)
2527 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
2528 contents, relocation);
2530 else if (r_type == R_FRV_GPRELHI)
2531 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
2532 contents, relocation);
2535 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
2538 if (r != bfd_reloc_ok)
2540 const char * msg = (const char *) NULL;
2544 case bfd_reloc_overflow:
2545 r = info->callbacks->reloc_overflow
2546 (info, name, howto->name, (bfd_vma) 0,
2547 input_bfd, input_section, rel->r_offset);
2550 case bfd_reloc_undefined:
2551 r = info->callbacks->undefined_symbol
2552 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
2555 case bfd_reloc_outofrange:
2556 msg = _("internal error: out of range error");
2559 case bfd_reloc_notsupported:
2560 msg = _("internal error: unsupported relocation error");
2563 case bfd_reloc_dangerous:
2564 msg = _("internal error: dangerous relocation");
2568 msg = _("internal error: unknown error");
2573 r = info->callbacks->warning
2574 (info, msg, name, input_bfd, input_section, rel->r_offset);
2584 /* Return the section that should be marked against GC for a given
2588 elf32_frv_gc_mark_hook (sec, info, rel, h, sym)
2590 struct bfd_link_info *info ATTRIBUTE_UNUSED;
2591 Elf_Internal_Rela *rel;
2592 struct elf_link_hash_entry *h;
2593 Elf_Internal_Sym *sym;
2597 switch (ELF32_R_TYPE (rel->r_info))
2599 case R_FRV_GNU_VTINHERIT:
2600 case R_FRV_GNU_VTENTRY:
2604 switch (h->root.type)
2609 case bfd_link_hash_defined:
2610 case bfd_link_hash_defweak:
2611 return h->root.u.def.section;
2613 case bfd_link_hash_common:
2614 return h->root.u.c.p->section;
2619 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
2624 /* Update the got entry reference counts for the section being removed. */
2627 elf32_frv_gc_sweep_hook (abfd, info, sec, relocs)
2628 bfd *abfd ATTRIBUTE_UNUSED;
2629 struct bfd_link_info *info ATTRIBUTE_UNUSED;
2630 asection *sec ATTRIBUTE_UNUSED;
2631 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
2637 /* Hook called by the linker routine which adds symbols from an object
2638 file. We use it to put .comm items in .scomm, and not .comm. */
2641 elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
2643 struct bfd_link_info *info;
2644 Elf_Internal_Sym *sym;
2645 const char **namep ATTRIBUTE_UNUSED;
2646 flagword *flagsp ATTRIBUTE_UNUSED;
2650 if (sym->st_shndx == SHN_COMMON
2651 && !info->relocatable
2652 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
2654 /* Common symbols less than or equal to -G nn bytes are
2655 automatically put into .sbss. */
2657 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
2661 scomm = bfd_make_section (abfd, ".scommon");
2663 || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC
2665 | SEC_LINKER_CREATED)))
2670 *valp = sym->st_size;
2676 /* Create a .got section, as well as its additional info field. This
2677 is almost entirely copied from
2678 elflink.c:_bfd_elf_create_got_section(). */
2681 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
2685 struct elf_link_hash_entry *h;
2686 struct bfd_link_hash_entry *bh;
2687 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2691 /* This function may be called more than once. */
2692 s = bfd_get_section_by_name (abfd, ".got");
2693 if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
2696 /* Machine specific: although pointers are 32-bits wide, we want the
2697 GOT to be aligned to a 64-bit boundary, such that function
2698 descriptors in it can be accessed with 64-bit loads and
2702 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2703 | SEC_LINKER_CREATED);
2705 s = bfd_make_section (abfd, ".got");
2707 || !bfd_set_section_flags (abfd, s, flags)
2708 || !bfd_set_section_alignment (abfd, s, ptralign))
2711 if (bed->want_got_plt)
2713 s = bfd_make_section (abfd, ".got.plt");
2715 || !bfd_set_section_flags (abfd, s, flags)
2716 || !bfd_set_section_alignment (abfd, s, ptralign))
2720 if (bed->want_got_sym)
2722 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
2723 (or .got.plt) section. We don't do this in the linker script
2724 because we don't want to define the symbol if we are not creating
2725 a global offset table. */
2727 if (!(_bfd_generic_link_add_one_symbol
2728 (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
2729 bed->got_symbol_offset, (const char *) NULL, FALSE,
2730 bed->collect, &bh)))
2732 h = (struct elf_link_hash_entry *) bh;
2733 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
2734 h->type = STT_OBJECT;
2736 /* Machine-specific: we want the symbol for executables as
2738 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2741 elf_hash_table (info)->hgot = h;
2744 /* The first bit of the global offset table is the header. */
2745 s->_raw_size += bed->got_header_size + bed->got_symbol_offset;
2747 /* This is the machine-specific part. Create and initialize section
2748 data for the got. */
2749 if (IS_FDPIC (abfd))
2751 frvfdpic_got_section (info) = s;
2752 frvfdpic_relocs_info (info) = htab_try_create (1, frvfdpic_relocs_info_hash,
2753 frvfdpic_relocs_info_eq,
2755 if (! frvfdpic_relocs_info (info))
2758 s = bfd_make_section (abfd, ".rel.got");
2760 || ! bfd_set_section_flags (abfd, s, (flags | SEC_READONLY))
2761 || ! bfd_set_section_alignment (abfd, s, 2))
2764 frvfdpic_gotrel_section (info) = s;
2766 /* Machine-specific. */
2767 s = bfd_make_section (abfd, ".rofixup");
2769 || ! bfd_set_section_flags (abfd, s, (flags | SEC_READONLY))
2770 || ! bfd_set_section_alignment (abfd, s, 2))
2773 frvfdpic_gotfixup_section (info) = s;
2780 flags = BSF_GLOBAL | BSF_WEAK;
2783 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
2784 turns out that we're linking with a different linker script, the
2785 linker script will override it. */
2787 if (!(_bfd_generic_link_add_one_symbol
2788 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
2789 bed->collect, &bh)))
2791 h = (struct elf_link_hash_entry *) bh;
2792 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
2793 h->type = STT_OBJECT;
2795 /* Machine-specific: we want the symbol for executables as well. */
2796 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
2802 /* Make sure the got and plt sections exist, and that our pointers in
2803 the link hash table point to them. */
2806 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2808 /* This is mostly copied from
2809 elflink.c:_bfd_elf_create_dynamic_sections(). */
2810 flagword flags, pltflags;
2812 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2814 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2815 .rel[a].bss sections. */
2817 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2818 | SEC_LINKER_CREATED);
2821 pltflags |= SEC_CODE;
2822 if (bed->plt_not_loaded)
2823 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
2824 if (bed->plt_readonly)
2825 pltflags |= SEC_READONLY;
2827 s = bfd_make_section (abfd, ".plt");
2829 || ! bfd_set_section_flags (abfd, s, pltflags)
2830 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
2832 /* FRV-specific: remember it. */
2833 frvfdpic_plt_section (info) = s;
2835 if (bed->want_plt_sym)
2837 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2839 struct elf_link_hash_entry *h;
2840 struct bfd_link_hash_entry *bh = NULL;
2842 if (! (_bfd_generic_link_add_one_symbol
2843 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL,
2844 FALSE, get_elf_backend_data (abfd)->collect, &bh)))
2846 h = (struct elf_link_hash_entry *) bh;
2847 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
2848 h->type = STT_OBJECT;
2850 if (! info->executable
2851 && ! bfd_elf_link_record_dynamic_symbol (info, h))
2855 /* FRV-specific: we want rel relocations for the plt. */
2856 s = bfd_make_section (abfd, ".rel.plt");
2858 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
2859 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
2861 /* FRV-specific: remember it. */
2862 frvfdpic_pltrel_section (info) = s;
2864 /* FRV-specific: we want to create the GOT in the FRV way. */
2865 if (! _frv_create_got_section (abfd, info))
2868 /* FRV-specific: make sure we created everything we wanted. */
2869 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
2870 && frvfdpic_gotfixup_section (info)
2871 && frvfdpic_plt_section (info)
2872 && frvfdpic_pltrel_section (info));
2874 if (bed->want_dynbss)
2876 /* The .dynbss section is a place to put symbols which are defined
2877 by dynamic objects, are referenced by regular objects, and are
2878 not functions. We must allocate space for them in the process
2879 image and use a R_*_COPY reloc to tell the dynamic linker to
2880 initialize them at run time. The linker script puts the .dynbss
2881 section into the .bss section of the final image. */
2882 s = bfd_make_section (abfd, ".dynbss");
2884 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC | SEC_LINKER_CREATED))
2887 /* The .rel[a].bss section holds copy relocs. This section is not
2888 normally needed. We need to create it here, though, so that the
2889 linker will map it to an output section. We can't just create it
2890 only if we need it, because we will not know whether we need it
2891 until we have seen all the input files, and the first time the
2892 main linker code calls BFD after examining all the input files
2893 (size_dynamic_sections) the input sections have already been
2894 mapped to the output sections. If the section turns out not to
2895 be needed, we can discard it later. We will never need this
2896 section when generating a shared object, since they do not use
2900 s = bfd_make_section (abfd,
2901 (bed->default_use_rela_p
2902 ? ".rela.bss" : ".rel.bss"));
2904 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
2905 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
2913 /* The name of the dynamic interpreter. This is put in the .interp
2916 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2918 #define DEFAULT_STACK_SIZE 0x20000
2920 /* This structure is used to collect the number of entries present in
2921 each addressable range of the got. */
2922 struct _frvfdpic_dynamic_got_info
2924 /* Several bits of information about the current link. */
2925 struct bfd_link_info *info;
2926 /* Total size needed for GOT entries within the 12-, 16- or 32-bit
2928 bfd_vma got12, gotlos, gothilo;
2929 /* Total size needed for function descriptor entries within the 12-,
2930 16- or 32-bit ranges. */
2931 bfd_vma fd12, fdlos, fdhilo;
2932 /* Total size needed function descriptor entries referenced in PLT
2933 entries, that would be profitable to place in offsets close to
2934 the PIC register. */
2936 /* Total size needed by lazy PLT entries. */
2938 /* Number of relocations carried over from input object files. */
2939 unsigned long relocs;
2940 /* Number of fixups introduced by relocations in input object files. */
2941 unsigned long fixups;
2944 /* Compute the total GOT size required by each symbol in each range.
2945 Symbols may require up to 4 words in the GOT: an entry pointing to
2946 the symbol, an entry pointing to its function descriptor, and a
2947 private function descriptors taking two words. */
2950 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
2952 struct frvfdpic_relocs_info *entry = *entryp;
2953 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
2954 unsigned relocs = 0, fixups = 0;
2956 /* Allocate space for a GOT entry pointing to the symbol. */
2959 else if (entry->gotlos)
2961 else if (entry->gothilo)
2962 dinfo->gothilo += 4;
2967 /* Allocate space for a GOT entry pointing to the function
2971 else if (entry->fdgotlos)
2973 else if (entry->fdgothilo)
2974 dinfo->gothilo += 4;
2979 /* Decide whether we need a PLT entry, a function descriptor in the
2980 GOT, and a lazy PLT entry for this symbol. */
2981 entry->plt = entry->call
2982 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
2983 && elf_hash_table (dinfo->info)->dynamic_sections_created;
2984 entry->privfd = entry->plt
2985 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
2986 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
2987 && (entry->symndx != -1
2988 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
2989 entry->lazyplt = entry->privfd
2990 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
2991 && ! (dinfo->info->flags & DF_BIND_NOW)
2992 && elf_hash_table (dinfo->info)->dynamic_sections_created;
2994 /* Allocate space for a function descriptor. */
2995 if (entry->fdgoff12)
2997 else if (entry->fdgofflos)
2999 else if (entry->privfd && entry->plt)
3001 else if (entry->privfd)
3010 if (!dinfo->info->executable || dinfo->info->pie)
3011 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv;
3014 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
3016 if (entry->symndx != -1
3017 || entry->d.h->root.type != bfd_link_hash_undefweak)
3018 fixups += entry->relocs32 + 2 * entry->relocsfdv;
3021 relocs += entry->relocs32 + entry->relocsfdv;
3023 if (entry->symndx != -1
3024 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
3026 if (entry->symndx != -1
3027 || entry->d.h->root.type != bfd_link_hash_undefweak)
3028 fixups += entry->relocsfd;
3031 relocs += entry->relocsfd;
3034 entry->dynrelocs += relocs;
3035 entry->fixups += fixups;
3036 dinfo->relocs += relocs;
3037 dinfo->fixups += fixups;
3042 /* This structure is used to assign offsets to got entries, function
3043 descriptors, plt entries and lazy plt entries. */
3045 struct _frvfdpic_dynamic_got_plt_info
3047 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
3048 struct _frvfdpic_dynamic_got_info g;
3050 /* For each addressable range, we record a MAX (positive) and MIN
3051 (negative) value. CUR is used to assign got entries, and it's
3052 incremented from an initial positive value to MAX, then from MIN
3053 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
3054 assign function descriptors, and it's decreased from an initial
3055 non-positive value to MIN, then from MAX down to CUR (unless CUR
3056 wraps around first). All of MIN, MAX, CUR and FDCUR always point
3057 to even words. ODD, if non-zero, indicates an odd word to be
3058 used for the next got entry, otherwise CUR is used and
3059 incremented by a pair of words, wrapping around when it reaches
3060 MAX. FDCUR is decremented (and wrapped) before the next function
3061 descriptor is chosen. FDPLT indicates the number of remaining
3062 slots that can be used for function descriptors used only by PLT
3064 struct _frvfdpic_dynamic_got_alloc_data
3066 bfd_signed_vma max, cur, odd, fdcur, min;
3068 } got12, gotlos, gothilo;
3071 /* Determine the positive and negative ranges to be used by each
3072 offset range in the GOT. FDCUR and CUR, that must be aligned to a
3073 double-word boundary, are the minimum (negative) and maximum
3074 (positive) GOT offsets already used by previous ranges, except for
3075 an ODD entry that may have been left behind. GOT and FD indicate
3076 the size of GOT entries and function descriptors that must be
3077 placed within the range from -WRAP to WRAP. If there's room left,
3078 up to FDPLT bytes should be reserved for additional function
3081 inline static bfd_signed_vma
3082 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
3083 bfd_signed_vma fdcur,
3091 bfd_signed_vma wrapmin = -wrap;
3093 /* Start at the given initial points. */
3097 /* If we had an incoming odd word and we have any got entries that
3098 are going to use it, consume it, otherwise leave gad->odd at
3099 zero. We might force gad->odd to zero and return the incoming
3100 odd such that it is used by the next range, but then GOT entries
3101 might appear to be out of order and we wouldn't be able to
3102 shorten the GOT by one word if it turns out to end with an
3103 unpaired GOT entry. */
3113 /* If we're left with an unpaired GOT entry, compute its location
3114 such that we can return it. Otherwise, if got doesn't require an
3115 odd number of words here, either odd was already zero in the
3116 block above, or it was set to zero because got was non-zero, or
3117 got was already zero. In the latter case, we want the value of
3118 odd to carry over to the return statement, so we don't want to
3119 reset odd unless the condition below is true. */
3126 /* Compute the tentative boundaries of this range. */
3127 gad->max = cur + got;
3128 gad->min = fdcur - fd;
3131 /* If function descriptors took too much space, wrap some of them
3133 if (gad->min < wrapmin)
3135 gad->max += wrapmin - gad->min;
3138 /* If there is space left and we have function descriptors
3139 referenced in PLT entries that could take advantage of shorter
3140 offsets, place them here. */
3141 else if (fdplt && gad->min > wrapmin)
3144 if ((bfd_vma) (gad->min - wrapmin) < fdplt)
3145 fds = gad->min - wrapmin;
3154 /* If GOT entries took too much space, wrap some of them around.
3155 This may well cause gad->min to become lower than wrapmin. This
3156 will cause a relocation overflow later on, so we don't have to
3158 if ((bfd_vma) gad->max > wrap)
3160 gad->min -= gad->max - wrap;
3163 /* If there is more space left, try to place some more function
3164 descriptors for PLT entries. */
3165 else if (fdplt && (bfd_vma) gad->max < wrap)
3168 if ((bfd_vma) (wrap - gad->max) < fdplt)
3169 fds = wrap - gad->max;
3178 /* If odd was initially computed as an offset past the wrap point,
3181 odd = gad->min + odd - gad->max;
3183 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
3184 before returning, so do it here too. This guarantees that,
3185 should cur and fdcur meet at the wrap point, they'll both be
3187 if (gad->cur == gad->max)
3188 gad->cur = gad->min;
3193 /* Compute the location of the next GOT entry, given the allocation
3194 data for a range. */
3196 inline static bfd_signed_vma
3197 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
3203 /* If there was an odd word left behind, use it. */
3209 /* Otherwise, use the word pointed to by cur, reserve the next
3210 as an odd word, and skip to the next pair of words, possibly
3213 gad->odd = gad->cur + 4;
3215 if (gad->cur == gad->max)
3216 gad->cur = gad->min;
3222 /* Compute the location of the next function descriptor entry in the
3223 GOT, given the allocation data for a range. */
3225 inline static bfd_signed_vma
3226 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
3228 /* If we're at the bottom, wrap around, and only then allocate the
3229 next pair of words. */
3230 if (gad->fdcur == gad->min)
3231 gad->fdcur = gad->max;
3232 return gad->fdcur -= 8;
3235 /* Assign GOT offsets for every GOT entry and function descriptor.
3236 Doing everything in a single pass is tricky. */
3239 _frvfdpic_assign_got_entries (void **entryp, void *info_)
3241 struct frvfdpic_relocs_info *entry = *entryp;
3242 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
3245 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
3246 else if (entry->gotlos)
3247 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
3248 else if (entry->gothilo)
3249 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
3252 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
3253 else if (entry->fdgotlos)
3254 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
3255 else if (entry->fdgothilo)
3256 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
3258 if (entry->fdgoff12)
3259 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
3260 else if (entry->plt && dinfo->got12.fdplt)
3262 dinfo->got12.fdplt -= 8;
3263 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
3265 else if (entry->fdgofflos)
3266 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
3267 else if (entry->plt && dinfo->gotlos.fdplt)
3269 dinfo->gotlos.fdplt -= 8;
3270 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
3272 else if (entry->plt)
3274 dinfo->gothilo.fdplt -= 8;
3275 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
3277 else if (entry->privfd)
3278 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
3283 /* Assign GOT offsets to private function descriptors used by PLT
3284 entries (or referenced by 32-bit offsets), as well as PLT entries
3285 and lazy PLT entries. */
3288 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
3290 struct frvfdpic_relocs_info *entry = *entryp;
3291 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
3293 /* If this symbol requires a local function descriptor, allocate
3295 if (entry->privfd && entry->fd_entry == 0)
3297 if (dinfo->got12.fdplt)
3299 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
3300 dinfo->got12.fdplt -= 8;
3302 else if (dinfo->gotlos.fdplt)
3304 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
3305 dinfo->gotlos.fdplt -= 8;
3309 BFD_ASSERT (dinfo->gothilo.fdplt)
3310 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
3311 dinfo->gothilo.fdplt -= 8;
3319 /* We use the section's raw size to mark the location of the
3321 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->_raw_size;
3323 /* Figure out the length of this PLT entry based on the
3324 addressing mode we need to reach the function descriptor. */
3325 BFD_ASSERT (entry->fd_entry);
3326 if (entry->fd_entry >= -(1 << (12 - 1))
3327 && entry->fd_entry < (1 << (12 - 1)))
3329 else if (entry->fd_entry >= -(1 << (16 - 1))
3330 && entry->fd_entry < (1 << (16 - 1)))
3335 frvfdpic_plt_section (dinfo->g.info)->_raw_size += size;
3340 entry->lzplt_entry = dinfo->g.lzplt;
3341 dinfo->g.lzplt += 8;
3342 /* If this entry is the one that gets the resolver stub, account
3343 for the additional instruction. */
3344 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
3345 == FRVFDPIC_LZPLT_RESOLV_LOC)
3346 dinfo->g.lzplt += 4;
3352 /* Follow indirect and warning hash entries so that each got entry
3353 points to the final symbol definition. P must point to a pointer
3354 to the hash table we're traversing. Since this traversal may
3355 modify the hash table, we set this pointer to NULL to indicate
3356 we've made a potentially-destructive change to the hash table, so
3357 the traversal must be restarted. */
3359 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
3361 struct frvfdpic_relocs_info *entry = *entryp;
3364 if (entry->symndx == -1)
3366 struct elf_link_hash_entry *h = entry->d.h;
3367 struct frvfdpic_relocs_info *oentry;
3369 while (h->root.type == bfd_link_hash_indirect
3370 || h->root.type == bfd_link_hash_warning)
3371 h = (struct elf_link_hash_entry *)h->root.u.i.link;
3373 if (entry->d.h == h)
3376 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
3381 /* Merge the two entries. */
3382 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
3383 htab_clear_slot (*htab, entryp);
3389 /* If we can't find this entry with the new bfd hash, re-insert
3390 it, and get the traversal restarted. */
3391 if (! htab_find (*htab, entry))
3393 htab_clear_slot (*htab, entryp);
3394 entryp = htab_find_slot (*htab, entry, INSERT);
3397 /* Abort the traversal, since the whole table may have
3398 moved, and leave it up to the parent to restart the
3400 *(htab_t *)p = NULL;
3408 /* Set the sizes of the dynamic sections. */
3411 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
3412 struct bfd_link_info *info)
3416 struct _frvfdpic_dynamic_got_plt_info gpinfo;
3420 dynobj = elf_hash_table (info)->dynobj;
3421 BFD_ASSERT (dynobj != NULL);
3423 if (elf_hash_table (info)->dynamic_sections_created)
3425 /* Set the contents of the .interp section to the interpreter. */
3426 if (info->executable)
3428 s = bfd_get_section_by_name (dynobj, ".interp");
3429 BFD_ASSERT (s != NULL);
3430 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
3431 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
3435 memset (&gpinfo, 0, sizeof (gpinfo));
3436 gpinfo.g.info = info;
3440 htab_t relocs = frvfdpic_relocs_info (info);
3442 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
3444 if (relocs == frvfdpic_relocs_info (info))
3448 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
3452 /* Compute the total size taken by entries in the 12-bit and 16-bit
3453 ranges, to tell how many PLT function descriptors we can bring
3454 into the 12-bit range without causing the 16-bit range to
3456 limit = odd + gpinfo.g.got12 + gpinfo.g.gotlos
3457 + gpinfo.g.fd12 + gpinfo.g.fdlos;
3458 if (limit < (bfd_vma)1 << 16)
3459 limit = ((bfd_vma)1 << 16) - limit;
3462 if (gpinfo.g.fdplt < limit)
3463 limit = gpinfo.g.fdplt;
3465 /* Determine the ranges of GOT offsets that we can use for each
3466 range of addressing modes. */
3467 odd = _frvfdpic_compute_got_alloc_data (&gpinfo.got12,
3474 (bfd_vma)1 << (12-1));
3475 odd = _frvfdpic_compute_got_alloc_data (&gpinfo.gotlos,
3481 gpinfo.g.fdplt - gpinfo.got12.fdplt,
3482 (bfd_vma)1 << (16-1));
3483 odd = _frvfdpic_compute_got_alloc_data (&gpinfo.gothilo,
3489 gpinfo.g.fdplt - gpinfo.got12.fdplt
3490 - gpinfo.gotlos.fdplt,
3491 (bfd_vma)1 << (32-1));
3493 /* Now assign (most) GOT offsets. */
3494 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
3497 frvfdpic_got_section (info)->_raw_size = gpinfo.gothilo.max
3498 - gpinfo.gothilo.min
3499 /* If an odd word is the last word of the GOT, we don't need this
3500 word to be part of the GOT. */
3501 - (odd + 4 == gpinfo.gothilo.max ? 4 : 0);
3502 if (frvfdpic_got_section (info)->_raw_size == 0)
3503 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
3504 else if (frvfdpic_got_section (info)->_raw_size == 12
3505 && ! elf_hash_table (info)->dynamic_sections_created)
3507 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
3508 frvfdpic_got_section (info)->_raw_size = 0;
3512 frvfdpic_got_section (info)->contents =
3513 (bfd_byte *) bfd_zalloc (dynobj,
3514 frvfdpic_got_section (info)->_raw_size);
3515 if (frvfdpic_got_section (info)->contents == NULL)
3519 if (elf_hash_table (info)->dynamic_sections_created)
3520 /* Subtract the number of lzplt entries, since those will generate
3521 relocations in the pltrel section. */
3522 frvfdpic_gotrel_section (info)->_raw_size =
3523 (gpinfo.g.relocs - gpinfo.g.lzplt / 8)
3524 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
3526 BFD_ASSERT (gpinfo.g.relocs == 0);
3527 if (frvfdpic_gotrel_section (info)->_raw_size == 0)
3528 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
3531 frvfdpic_gotrel_section (info)->contents =
3532 (bfd_byte *) bfd_zalloc (dynobj,
3533 frvfdpic_gotrel_section (info)->_raw_size);
3534 if (frvfdpic_gotrel_section (info)->contents == NULL)
3538 frvfdpic_gotfixup_section (info)->_raw_size = (gpinfo.g.fixups + 1) * 4;
3539 if (frvfdpic_gotfixup_section (info)->_raw_size == 0)
3540 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
3543 frvfdpic_gotfixup_section (info)->contents =
3544 (bfd_byte *) bfd_zalloc (dynobj,
3545 frvfdpic_gotfixup_section (info)->_raw_size);
3546 if (frvfdpic_gotfixup_section (info)->contents == NULL)
3550 if (elf_hash_table (info)->dynamic_sections_created)
3552 frvfdpic_pltrel_section (info)->_raw_size =
3553 gpinfo.g.lzplt / 8 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
3554 if (frvfdpic_pltrel_section (info)->_raw_size == 0)
3555 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
3558 frvfdpic_pltrel_section (info)->contents =
3559 (bfd_byte *) bfd_zalloc (dynobj,
3560 frvfdpic_pltrel_section (info)
3562 if (frvfdpic_pltrel_section (info)->contents == NULL)
3567 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
3568 such that there's room for the additional instruction needed to
3569 call the resolver. Since _frvfdpic_assign_got_entries didn't
3570 account for them, our block size is 4 bytes smaller than the real
3572 if (elf_hash_table (info)->dynamic_sections_created)
3574 frvfdpic_plt_section (info)->_raw_size = gpinfo.g.lzplt
3575 + ((gpinfo.g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
3576 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
3579 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
3580 actually assign lazy PLT entries addresses. */
3583 /* Save information that we're going to need to generate GOT and PLT
3585 frvfdpic_got_initial_offset (info) = -gpinfo.gothilo.min;
3587 if (get_elf_backend_data (output_bfd)->want_got_sym)
3588 elf_hash_table (info)->hgot->root.u.def.value
3589 += frvfdpic_got_initial_offset (info);
3591 if (elf_hash_table (info)->dynamic_sections_created)
3592 frvfdpic_plt_initial_offset (info) =
3593 frvfdpic_plt_section (info)->_raw_size;
3595 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
3598 /* Allocate the PLT section contents only after
3599 _frvfdpic_assign_plt_entries has a chance to add the size of the
3600 non-lazy PLT entries. */
3601 if (elf_hash_table (info)->dynamic_sections_created)
3603 if (frvfdpic_plt_section (info)->_raw_size == 0)
3604 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
3607 frvfdpic_plt_section (info)->contents =
3608 (bfd_byte *) bfd_zalloc (dynobj,
3609 frvfdpic_plt_section (info)->_raw_size);
3610 if (frvfdpic_plt_section (info)->contents == NULL)
3615 if (elf_hash_table (info)->dynamic_sections_created)
3617 if (frvfdpic_got_section (info)->_raw_size)
3618 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
3621 if (frvfdpic_pltrel_section (info)->_raw_size)
3622 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3623 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
3624 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3627 if (frvfdpic_gotrel_section (info)->_raw_size)
3628 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
3629 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
3630 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
3631 sizeof (Elf32_External_Rel)))
3639 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
3640 struct bfd_link_info *info)
3642 if (!info->relocatable)
3644 struct elf_link_hash_entry *h;
3647 /* Force a PT_GNU_STACK segment to be created. */
3648 if (! elf_tdata (output_bfd)->stack_flags)
3649 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
3651 /* Define __stacksize if it's not defined yet. */
3652 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3653 FALSE, FALSE, FALSE);
3654 if (! h || h->root.type != bfd_link_hash_defined
3655 || h->type != STT_OBJECT
3656 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
3658 struct bfd_link_hash_entry *bh = NULL;
3660 if (!(_bfd_generic_link_add_one_symbol
3661 (info, output_bfd, "__stacksize",
3662 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
3663 (const char *) NULL, FALSE,
3664 get_elf_backend_data (output_bfd)->collect, &bh)))
3667 h = (struct elf_link_hash_entry *) bh;
3668 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
3669 h->type = STT_OBJECT;
3672 /* Create a stack section, and set its alignment. */
3673 sec = bfd_make_section (output_bfd, ".stack");
3676 || ! bfd_set_section_alignment (output_bfd, sec, 3))
3684 elf32_frvfdpic_modify_segment_map (bfd *output_bfd,
3685 struct bfd_link_info *info)
3687 struct elf_segment_map *m;
3689 /* objcopy and strip preserve what's already there using
3690 elf32_frvfdpic_copy_private_bfd_data (). */
3694 for (m = elf_tdata (output_bfd)->segment_map; m != NULL; m = m->next)
3695 if (m->p_type == PT_GNU_STACK)
3700 asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
3701 struct elf_link_hash_entry *h;
3705 /* Obtain the pointer to the __stacksize symbol. */
3706 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3707 FALSE, FALSE, FALSE);
3708 while (h->root.type == bfd_link_hash_indirect
3709 || h->root.type == bfd_link_hash_warning)
3710 h = (struct elf_link_hash_entry *)h->root.u.i.link;
3711 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
3713 /* Set the section size from the symbol value. We
3714 intentionally ignore the symbol section. */
3715 if (h->root.type == bfd_link_hash_defined)
3716 sec->_raw_size = h->root.u.def.value;
3718 sec->_raw_size = DEFAULT_STACK_SIZE;
3720 /* Add the stack section to the PT_GNU_STACK segment,
3721 such that its size and alignment requirements make it
3723 m->sections[m->count] = sec;
3731 /* Fill in code and data in dynamic sections. */
3734 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3735 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3737 /* Nothing to be done for non-FDPIC. */
3742 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
3743 struct bfd_link_info *info)
3748 dynobj = elf_hash_table (info)->dynobj;
3750 if (frvfdpic_got_section (info))
3752 BFD_ASSERT (frvfdpic_gotrel_section (info)->_raw_size
3753 == (frvfdpic_gotrel_section (info)->reloc_count
3754 * sizeof (Elf32_External_Rel)));
3756 if (frvfdpic_gotfixup_section (info))
3758 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
3759 bfd_vma got_value = hgot->root.u.def.value
3760 + hgot->root.u.def.section->output_section->vma
3761 + hgot->root.u.def.section->output_offset;
3763 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
3766 if (frvfdpic_gotfixup_section (info)->_raw_size
3767 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
3769 (*_bfd_error_handler)
3770 ("LINKER BUG: .rofixup section size mismatch");
3775 if (elf_hash_table (info)->dynamic_sections_created)
3777 BFD_ASSERT (frvfdpic_pltrel_section (info)->_raw_size
3778 == (frvfdpic_pltrel_section (info)->reloc_count
3779 * sizeof (Elf32_External_Rel)));
3782 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3784 if (elf_hash_table (info)->dynamic_sections_created)
3786 Elf32_External_Dyn * dyncon;
3787 Elf32_External_Dyn * dynconend;
3789 BFD_ASSERT (sdyn != NULL);
3791 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3792 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
3794 for (; dyncon < dynconend; dyncon++)
3796 Elf_Internal_Dyn dyn;
3798 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3806 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
3807 + frvfdpic_got_section (info)->output_offset
3808 + frvfdpic_got_initial_offset (info);
3809 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3813 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
3814 ->output_section->vma
3815 + frvfdpic_pltrel_section (info)->output_offset;
3816 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3820 if (frvfdpic_pltrel_section (info)->_cooked_size != 0)
3821 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->_cooked_size;
3823 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->_raw_size;
3824 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3833 /* Adjust a symbol defined by a dynamic object and referenced by a
3837 elf32_frvfdpic_adjust_dynamic_symbol
3838 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3839 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3843 dynobj = elf_hash_table (info)->dynobj;
3845 /* Make sure we know what is going on here. */
3846 BFD_ASSERT (dynobj != NULL
3847 && (h->weakdef != NULL
3848 || ((h->elf_link_hash_flags
3849 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
3850 && (h->elf_link_hash_flags
3851 & ELF_LINK_HASH_REF_REGULAR) != 0
3852 && (h->elf_link_hash_flags
3853 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
3855 /* If this is a weak symbol, and there is a real definition, the
3856 processor independent code will have arranged for us to see the
3857 real definition first, and we can just use the same value. */
3858 if (h->weakdef != NULL)
3860 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
3861 || h->weakdef->root.type == bfd_link_hash_defweak);
3862 h->root.u.def.section = h->weakdef->root.u.def.section;
3863 h->root.u.def.value = h->weakdef->root.u.def.value;
3869 /* Perform any actions needed for dynamic symbols. */
3872 elf32_frvfdpic_finish_dynamic_symbol
3873 (bfd *output_bfd ATTRIBUTE_UNUSED,
3874 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3875 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
3876 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
3881 /* Decide whether to attempt to turn absptr or lsda encodings in
3882 shared libraries into pcrel within the given input section. */
3885 frvfdpic_elf_use_relative_eh_frame
3886 (bfd *input_bfd ATTRIBUTE_UNUSED,
3887 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3888 asection *eh_frame_section ATTRIBUTE_UNUSED)
3890 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
3894 /* Adjust the contents of an eh_frame_hdr section before they're output. */
3897 frvfdpic_elf_encode_eh_address (bfd *abfd,
3898 struct bfd_link_info *info,
3899 asection *osec, bfd_vma offset,
3900 asection *loc_sec, bfd_vma loc_offset,
3903 struct elf_link_hash_entry *h;
3905 h = elf_hash_table (info)->hgot;
3906 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
3908 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
3909 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
3910 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
3911 loc_sec, loc_offset, encoded);
3913 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
3914 == (_frvfdpic_osec_to_segment
3915 (abfd, h->root.u.def.section->output_section)));
3917 *encoded = osec->vma + offset
3918 - (h->root.u.def.value
3919 + h->root.u.def.section->output_section->vma
3920 + h->root.u.def.section->output_offset);
3922 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
3925 /* Look through the relocs for a section during the first phase.
3927 Besides handling virtual table relocs for gc, we have to deal with
3928 all sorts of PIC-related relocations. We describe below the
3929 general plan on how to handle such relocations, even though we only
3930 collect information at this point, storing them in hash tables for
3931 perusal of later passes.
3933 32 relocations are propagated to the linker output when creating
3934 position-independent output. LO16 and HI16 relocations are not
3935 supposed to be encountered in this case.
3937 LABEL16 should always be resolvable by the linker, since it's only
3940 LABEL24, on the other hand, is used by calls. If it turns out that
3941 the target of a call is a dynamic symbol, a PLT entry must be
3942 created for it, which triggers the creation of a private function
3943 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
3945 GPREL relocations require the referenced symbol to be in the same
3946 segment as _gp, but this can only be checked later.
3948 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
3949 exist. LABEL24 might as well, since it may require a PLT entry,
3950 that will require a got.
3952 Non-FUNCDESC GOT relocations require a GOT entry to be created
3953 regardless of whether the symbol is dynamic. However, since a
3954 global symbol that turns out to not be exported may have the same
3955 address of a non-dynamic symbol, we don't assign GOT entries at
3956 this point, such that we can share them in this case. A relocation
3957 for the GOT entry always has to be created, be it to offset a
3958 private symbol by the section load address, be it to get the symbol
3959 resolved dynamically.
3961 FUNCDESC GOT relocations require a GOT entry to be created, and
3962 handled as if a FUNCDESC relocation was applied to the GOT entry in
3965 FUNCDESC relocations referencing a symbol that turns out to NOT be
3966 dynamic cause a private function descriptor to be created. The
3967 FUNCDESC relocation then decays to a 32 relocation that points at
3968 the private descriptor. If the symbol is dynamic, the FUNCDESC
3969 relocation is propagated to the linker output, such that the
3970 dynamic linker creates the canonical descriptor, pointing to the
3971 dynamically-resolved definition of the function.
3973 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
3974 symbols that are assigned to the same segment as the GOT, but we
3975 can only check this later, after we know the complete set of
3976 symbols defined and/or exported.
3978 FUNCDESC GOTOFF relocations require a function descriptor to be
3979 created and, unless lazy binding is disabled or the symbol is not
3980 dynamic, a lazy PLT entry. Since we can't tell at this point
3981 whether a symbol is going to be dynamic, we have to decide later
3982 whether to create a lazy PLT entry or bind the descriptor directly
3983 to the private function.
3985 FUNCDESC_VALUE relocations are not supposed to be present in object
3986 files, but they may very well be simply propagated to the linker
3987 output, since they have no side effect.
3990 A function descriptor always requires a FUNCDESC_VALUE relocation.
3991 Whether it's in .plt.rel or not depends on whether lazy binding is
3992 enabled and on whether the referenced symbol is dynamic.
3994 The existence of a lazy PLT requires the resolverStub lazy PLT
3995 entry to be present.
3998 As for assignment of GOT, PLT and lazy PLT entries, and private
3999 descriptors, we might do them all sequentially, but we can do
4000 better than that. For example, we can place GOT entries and
4001 private function descriptors referenced using 12-bit operands
4002 closer to the PIC register value, such that these relocations don't
4003 overflow. Those that are only referenced with LO16 relocations
4004 could come next, but we may as well place PLT-required function
4005 descriptors in the 12-bit range to make them shorter. Symbols
4006 referenced with LO16/HI16 may come next, but we may place
4007 additional function descriptors in the 16-bit range if we can
4008 reliably tell that we've already placed entries that are ever
4009 referenced with only LO16. PLT entries are therefore generated as
4010 small as possible, while not introducing relocation overflows in
4011 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
4012 generated before or after PLT entries, but not intermingled with
4013 them, such that we can have more lazy PLT entries in range for a
4014 branch to the resolverStub. The resolverStub should be emitted at
4015 the most distant location from the first lazy PLT entry such that
4016 it's still in range for a branch, or closer, if there isn't a need
4017 for so many lazy PLT entries. Additional lazy PLT entries may be
4018 emitted after the resolverStub, as long as branches are still in
4019 range. If the branch goes out of range, longer lazy PLT entries
4022 We could further optimize PLT and lazy PLT entries by giving them
4023 priority in assignment to closer-to-gr17 locations depending on the
4024 number of occurrences of references to them (assuming a function
4025 that's called more often is more important for performance, so its
4026 PLT entry should be faster), or taking hints from the compiler.
4027 Given infinite time and money... :-) */
4030 elf32_frv_check_relocs (abfd, info, sec, relocs)
4032 struct bfd_link_info *info;
4034 const Elf_Internal_Rela *relocs;
4036 Elf_Internal_Shdr *symtab_hdr;
4037 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4038 const Elf_Internal_Rela *rel;
4039 const Elf_Internal_Rela *rel_end;
4041 struct frvfdpic_relocs_info *picrel;
4043 if (info->relocatable)
4046 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4047 sym_hashes = elf_sym_hashes (abfd);
4048 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
4049 if (!elf_bad_symtab (abfd))
4050 sym_hashes_end -= symtab_hdr->sh_info;
4052 dynobj = elf_hash_table (info)->dynobj;
4053 rel_end = relocs + sec->reloc_count;
4054 for (rel = relocs; rel < rel_end; rel++)
4056 struct elf_link_hash_entry *h;
4057 unsigned long r_symndx;
4059 r_symndx = ELF32_R_SYM (rel->r_info);
4060 if (r_symndx < symtab_hdr->sh_info)
4063 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4065 switch (ELF32_R_TYPE (rel->r_info))
4070 case R_FRV_FUNCDESC_GOT12:
4071 case R_FRV_FUNCDESC_GOTHI:
4072 case R_FRV_FUNCDESC_GOTLO:
4073 case R_FRV_GOTOFF12:
4074 case R_FRV_GOTOFFHI:
4075 case R_FRV_GOTOFFLO:
4076 case R_FRV_FUNCDESC_GOTOFF12:
4077 case R_FRV_FUNCDESC_GOTOFFHI:
4078 case R_FRV_FUNCDESC_GOTOFFLO:
4079 case R_FRV_FUNCDESC:
4080 case R_FRV_FUNCDESC_VALUE:
4081 if (! IS_FDPIC (abfd))
4085 case R_FRV_GPRELU12:
4092 elf_hash_table (info)->dynobj = dynobj = abfd;
4093 if (! _frv_create_got_section (abfd, info))
4096 if (! IS_FDPIC (abfd))
4103 if (h->dynindx == -1)
4104 switch (ELF_ST_VISIBILITY (h->other))
4110 bfd_elf_link_record_dynamic_symbol (info, h);
4114 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
4116 rel->r_addend, INSERT);
4119 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
4120 (info), abfd, r_symndx,
4121 rel->r_addend, INSERT);
4131 switch (ELF32_R_TYPE (rel->r_info))
4134 if (IS_FDPIC (abfd))
4138 case R_FRV_FUNCDESC_VALUE:
4139 picrel->relocsfdv++;
4140 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
4145 if (! IS_FDPIC (abfd))
4149 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
4159 picrel->gothilo = 1;
4162 case R_FRV_FUNCDESC_GOT12:
4163 picrel->fdgot12 = 1;
4166 case R_FRV_FUNCDESC_GOTHI:
4167 case R_FRV_FUNCDESC_GOTLO:
4168 picrel->fdgothilo = 1;
4171 case R_FRV_GOTOFF12:
4172 case R_FRV_GOTOFFHI:
4173 case R_FRV_GOTOFFLO:
4177 case R_FRV_FUNCDESC_GOTOFF12:
4178 picrel->fdgoff12 = 1;
4181 case R_FRV_FUNCDESC_GOTOFFHI:
4182 case R_FRV_FUNCDESC_GOTOFFLO:
4183 picrel->fdgoffhilo = 1;
4186 case R_FRV_FUNCDESC:
4191 /* This relocation describes the C++ object vtable hierarchy.
4192 Reconstruct it for later use during GC. */
4193 case R_FRV_GNU_VTINHERIT:
4194 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4198 /* This relocation describes which C++ vtable entries are actually
4199 used. Record for later use during GC. */
4200 case R_FRV_GNU_VTENTRY:
4201 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4209 case R_FRV_GPRELU12:
4217 (*_bfd_error_handler)
4218 (_("%s: unsupported relocation type %i"),
4219 bfd_archive_filename (abfd), ELF32_R_TYPE (rel->r_info));
4228 /* Return the machine subcode from the ELF e_flags header. */
4231 elf32_frv_machine (abfd)
4234 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
4237 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
4238 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
4239 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
4240 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
4241 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
4242 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
4243 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
4244 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
4247 return bfd_mach_frv;
4250 /* Set the right machine number for a FRV ELF file. */
4253 elf32_frv_object_p (abfd)
4256 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
4257 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
4258 == (IS_FDPIC (abfd)));
4261 /* Function to set the ELF flag bits. */
4264 frv_elf_set_private_flags (abfd, flags)
4268 elf_elfheader (abfd)->e_flags = flags;
4269 elf_flags_init (abfd) = TRUE;
4273 /* Copy backend specific data from one object module to another. */
4276 frv_elf_copy_private_bfd_data (ibfd, obfd)
4280 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4281 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4284 BFD_ASSERT (!elf_flags_init (obfd)
4285 || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
4287 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
4288 elf_flags_init (obfd) = TRUE;
4292 /* Return true if the architecture described by elf header flag
4293 EXTENSION is an extension of the architecture described by BASE. */
4296 frv_elf_arch_extension_p (flagword base, flagword extension)
4298 if (base == extension)
4301 /* CPU_GENERIC code can be merged with code for a specific
4302 architecture, in which case the result is marked as being
4303 for the specific architecture. Everything is therefore
4304 an extension of CPU_GENERIC. */
4305 if (base == EF_FRV_CPU_GENERIC)
4308 if (extension == EF_FRV_CPU_FR450)
4309 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
4312 if (extension == EF_FRV_CPU_FR405)
4313 if (base == EF_FRV_CPU_FR400)
4320 elf32_frvfdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
4324 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4325 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4328 if (! frv_elf_copy_private_bfd_data (ibfd, obfd))
4331 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
4332 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
4335 /* Copy the stack size. */
4336 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
4337 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
4339 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
4341 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
4342 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
4344 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
4346 /* Rewrite the phdrs, since we're only called after they
4347 were first written. */
4348 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
4349 ->s->sizeof_ehdr, SEEK_SET) != 0
4350 || get_elf_backend_data (obfd)->s
4351 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
4352 elf_elfheader (obfd)->e_phnum) != 0)
4363 /* Merge backend specific data from an object file to the output
4364 object file when linking. */
4367 frv_elf_merge_private_bfd_data (ibfd, obfd)
4371 flagword old_flags, old_partial;
4372 flagword new_flags, new_partial;
4373 bfd_boolean error = FALSE;
4377 new_opt[0] = old_opt[0] = '\0';
4378 new_flags = elf_elfheader (ibfd)->e_flags;
4379 old_flags = elf_elfheader (obfd)->e_flags;
4381 if (new_flags & EF_FRV_FDPIC)
4382 new_flags &= ~EF_FRV_PIC;
4385 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
4386 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
4387 bfd_get_filename (ibfd));
4390 if (!elf_flags_init (obfd)) /* First call, no flags set. */
4392 elf_flags_init (obfd) = TRUE;
4393 old_flags = new_flags;
4396 else if (new_flags == old_flags) /* Compatible flags are ok. */
4399 else /* Possibly incompatible flags. */
4401 /* Warn if different # of gprs are used. Note, 0 means nothing is
4402 said about the size of gprs. */
4403 new_partial = (new_flags & EF_FRV_GPR_MASK);
4404 old_partial = (old_flags & EF_FRV_GPR_MASK);
4405 if (new_partial == old_partial)
4408 else if (new_partial == 0)
4411 else if (old_partial == 0)
4412 old_flags |= new_partial;
4416 switch (new_partial)
4418 default: strcat (new_opt, " -mgpr-??"); break;
4419 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
4420 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
4423 switch (old_partial)
4425 default: strcat (old_opt, " -mgpr-??"); break;
4426 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
4427 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
4431 /* Warn if different # of fprs are used. Note, 0 means nothing is
4432 said about the size of fprs. */
4433 new_partial = (new_flags & EF_FRV_FPR_MASK);
4434 old_partial = (old_flags & EF_FRV_FPR_MASK);
4435 if (new_partial == old_partial)
4438 else if (new_partial == 0)
4441 else if (old_partial == 0)
4442 old_flags |= new_partial;
4446 switch (new_partial)
4448 default: strcat (new_opt, " -mfpr-?"); break;
4449 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
4450 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
4451 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
4454 switch (old_partial)
4456 default: strcat (old_opt, " -mfpr-?"); break;
4457 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
4458 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
4459 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
4463 /* Warn if different dword support was used. Note, 0 means nothing is
4464 said about the dword support. */
4465 new_partial = (new_flags & EF_FRV_DWORD_MASK);
4466 old_partial = (old_flags & EF_FRV_DWORD_MASK);
4467 if (new_partial == old_partial)
4470 else if (new_partial == 0)
4473 else if (old_partial == 0)
4474 old_flags |= new_partial;
4478 switch (new_partial)
4480 default: strcat (new_opt, " -mdword-?"); break;
4481 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
4482 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
4485 switch (old_partial)
4487 default: strcat (old_opt, " -mdword-?"); break;
4488 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
4489 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
4493 /* Or in flags that accumulate (ie, if one module uses it, mark that the
4495 old_flags |= new_flags & (EF_FRV_DOUBLE
4498 | EF_FRV_NON_PIC_RELOCS);
4500 /* If any module was compiled without -G0, clear the G0 bit. */
4501 old_flags = ((old_flags & ~ EF_FRV_G0)
4502 | (old_flags & new_flags & EF_FRV_G0));
4504 /* If any module was compiled without -mnopack, clear the mnopack bit. */
4505 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
4506 | (old_flags & new_flags & EF_FRV_NOPACK));
4508 /* We don't have to do anything if the pic flags are the same, or the new
4509 module(s) were compiled with -mlibrary-pic. */
4510 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
4511 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
4512 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
4515 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
4516 flags if any from the new module. */
4517 else if ((old_partial & EF_FRV_LIBPIC) != 0)
4518 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
4520 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
4521 else if (new_partial != 0 && old_partial != 0)
4522 old_flags |= new_partial;
4524 /* One module was compiled for pic and the other was not, see if we have
4525 had any relocations that are not pic-safe. */
4528 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
4529 old_flags |= new_partial;
4532 old_flags &= ~ EF_FRV_PIC_FLAGS;
4533 #ifndef FRV_NO_PIC_ERROR
4535 (*_bfd_error_handler)
4536 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
4537 bfd_get_filename (ibfd),
4538 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
4543 /* Warn if different cpu is used (allow a specific cpu to override
4544 the generic cpu). */
4545 new_partial = (new_flags & EF_FRV_CPU_MASK);
4546 old_partial = (old_flags & EF_FRV_CPU_MASK);
4547 if (frv_elf_arch_extension_p (new_partial, old_partial))
4550 else if (frv_elf_arch_extension_p (old_partial, new_partial))
4551 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
4555 switch (new_partial)
4557 default: strcat (new_opt, " -mcpu=?"); break;
4558 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
4559 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
4560 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
4561 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
4562 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
4563 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
4564 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
4565 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
4566 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
4569 switch (old_partial)
4571 default: strcat (old_opt, " -mcpu=?"); break;
4572 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
4573 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
4574 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
4575 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
4576 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
4577 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
4578 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
4579 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
4580 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
4584 /* Print out any mismatches from above. */
4588 (*_bfd_error_handler)
4589 (_("%s: compiled with %s and linked with modules compiled with %s"),
4590 bfd_get_filename (ibfd), new_opt, old_opt);
4593 /* Warn about any other mismatches */
4594 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
4595 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
4596 if (new_partial != old_partial)
4598 old_flags |= new_partial;
4600 (*_bfd_error_handler)
4601 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
4602 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
4606 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
4607 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
4608 old_flags |= EF_FRV_NOPACK;
4610 /* Update the old flags now with changes made above. */
4611 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
4612 elf_elfheader (obfd)->e_flags = old_flags;
4613 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
4614 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
4616 if (((new_flags & EF_FRV_FDPIC) == 0)
4617 != (! IS_FDPIC (ibfd)))
4620 if (IS_FDPIC (obfd))
4621 (*_bfd_error_handler)
4622 (_("%s: cannot link non-fdpic object file into fdpic executable"),
4623 bfd_get_filename (ibfd));
4625 (*_bfd_error_handler)
4626 (_("%s: cannot link fdpic object file into non-fdpic executable"),
4627 bfd_get_filename (ibfd));
4631 bfd_set_error (bfd_error_bad_value);
4638 frv_elf_print_private_bfd_data (abfd, ptr)
4642 FILE *file = (FILE *) ptr;
4645 BFD_ASSERT (abfd != NULL && ptr != NULL);
4647 /* Print normal ELF private data. */
4648 _bfd_elf_print_private_bfd_data (abfd, ptr);
4650 flags = elf_elfheader (abfd)->e_flags;
4651 fprintf (file, _("private flags = 0x%lx:"), (long)flags);
4653 switch (flags & EF_FRV_CPU_MASK)
4656 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
4657 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
4658 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
4659 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
4660 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
4661 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
4662 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
4663 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
4666 switch (flags & EF_FRV_GPR_MASK)
4669 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
4670 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
4673 switch (flags & EF_FRV_FPR_MASK)
4676 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
4677 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
4678 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
4681 switch (flags & EF_FRV_DWORD_MASK)
4684 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
4685 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
4688 if (flags & EF_FRV_DOUBLE)
4689 fprintf (file, " -mdouble");
4691 if (flags & EF_FRV_MEDIA)
4692 fprintf (file, " -mmedia");
4694 if (flags & EF_FRV_MULADD)
4695 fprintf (file, " -mmuladd");
4697 if (flags & EF_FRV_PIC)
4698 fprintf (file, " -fpic");
4700 if (flags & EF_FRV_BIGPIC)
4701 fprintf (file, " -fPIC");
4703 if (flags & EF_FRV_LIBPIC)
4704 fprintf (file, " -mlibrary-pic");
4706 if (flags & EF_FRV_FDPIC)
4707 fprintf (file, " -mfdpic");
4709 if (flags & EF_FRV_NON_PIC_RELOCS)
4710 fprintf (file, " non-pic relocations");
4712 if (flags & EF_FRV_G0)
4713 fprintf (file, " -G0");
4720 #define ELF_ARCH bfd_arch_frv
4721 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
4722 #define ELF_MAXPAGESIZE 0x1000
4724 #define TARGET_BIG_SYM bfd_elf32_frv_vec
4725 #define TARGET_BIG_NAME "elf32-frv"
4727 #define elf_info_to_howto frv_info_to_howto_rela
4728 #define elf_backend_relocate_section elf32_frv_relocate_section
4729 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
4730 #define elf_backend_gc_sweep_hook elf32_frv_gc_sweep_hook
4731 #define elf_backend_check_relocs elf32_frv_check_relocs
4732 #define elf_backend_object_p elf32_frv_object_p
4733 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
4735 #define elf_backend_can_gc_sections 1
4736 #define elf_backend_rela_normal 1
4738 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
4739 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
4740 #define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data
4741 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
4742 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
4744 #define elf_backend_want_got_sym 1
4745 #define elf_backend_got_header_size 0
4746 #define elf_backend_want_got_plt 0
4747 #define elf_backend_plt_readonly 1
4748 #define elf_backend_want_plt_sym 0
4749 #define elf_backend_plt_header_size 0
4751 #define elf_backend_finish_dynamic_sections \
4752 elf32_frv_finish_dynamic_sections
4754 #include "elf32-target.h"
4756 #undef ELF_MAXPAGESIZE
4757 #define ELF_MAXPAGESIZE 0x4000
4759 #undef TARGET_BIG_SYM
4760 #define TARGET_BIG_SYM bfd_elf32_frvfdpic_vec
4761 #undef TARGET_BIG_NAME
4762 #define TARGET_BIG_NAME "elf32-frvfdpic"
4764 #define elf32_bed elf32_frvfdpic_bed
4766 #undef elf_info_to_howto_rel
4767 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
4769 #undef bfd_elf32_bfd_link_hash_table_create
4770 #define bfd_elf32_bfd_link_hash_table_create \
4771 frvfdpic_elf_link_hash_table_create
4772 #undef elf_backend_always_size_sections
4773 #define elf_backend_always_size_sections \
4774 elf32_frvfdpic_always_size_sections
4775 #undef elf_backend_modify_segment_map
4776 #define elf_backend_modify_segment_map \
4777 elf32_frvfdpic_modify_segment_map
4778 #undef bfd_elf32_bfd_copy_private_bfd_data
4779 #define bfd_elf32_bfd_copy_private_bfd_data \
4780 elf32_frvfdpic_copy_private_bfd_data
4782 #undef elf_backend_create_dynamic_sections
4783 #define elf_backend_create_dynamic_sections \
4784 elf32_frvfdpic_create_dynamic_sections
4785 #undef elf_backend_adjust_dynamic_symbol
4786 #define elf_backend_adjust_dynamic_symbol \
4787 elf32_frvfdpic_adjust_dynamic_symbol
4788 #undef elf_backend_size_dynamic_sections
4789 #define elf_backend_size_dynamic_sections \
4790 elf32_frvfdpic_size_dynamic_sections
4791 #undef elf_backend_finish_dynamic_symbol
4792 #define elf_backend_finish_dynamic_symbol \
4793 elf32_frvfdpic_finish_dynamic_symbol
4794 #undef elf_backend_finish_dynamic_sections
4795 #define elf_backend_finish_dynamic_sections \
4796 elf32_frvfdpic_finish_dynamic_sections
4798 #undef elf_backend_can_make_relative_eh_frame
4799 #define elf_backend_can_make_relative_eh_frame \
4800 frvfdpic_elf_use_relative_eh_frame
4801 #undef elf_backend_can_make_lsda_relative_eh_frame
4802 #define elf_backend_can_make_lsda_relative_eh_frame \
4803 frvfdpic_elf_use_relative_eh_frame
4804 #undef elf_backend_encode_eh_address
4805 #define elf_backend_encode_eh_address \
4806 frvfdpic_elf_encode_eh_address
4808 #undef elf_backend_may_use_rel_p
4809 #define elf_backend_may_use_rel_p 1
4810 #undef elf_backend_may_use_rela_p
4811 #define elf_backend_may_use_rela_p 1
4812 /* We use REL for dynamic relocations only. */
4813 #undef elf_backend_default_use_rela_p
4814 #define elf_backend_default_use_rela_p 1
4816 #include "elf32-target.h"