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[binutils.git] / bfd / elf32-frv.c
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4e5ba5b7 1/* FRV-specific support for 32-bit ELF.
5a580b3a 2 Copyright 2002, 2003, 2004 Free Software Foundation, Inc.
4e5ba5b7
DB		 3
4This file is part of BFD, the Binary File Descriptor library.
5
6This program is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2 of the License, or
9(at your option) any later version.
10
11This program is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with this program; if not, write to the Free Software
18Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20#include "bfd.h"
21#include "sysdep.h"
22#include "libbfd.h"
23#include "elf-bfd.h"
24#include "elf/frv.h"
ec3391e7 25#include "elf/dwarf2.h"
51532845 26#include "hashtab.h"
4e5ba5b7
DB		 27
28/* Forward declarations. */
29static bfd_reloc_status_type elf32_frv_relocate_lo16
30 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
31static bfd_reloc_status_type elf32_frv_relocate_hi16
32 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
33static bfd_reloc_status_type elf32_frv_relocate_label24
34 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
35static bfd_reloc_status_type elf32_frv_relocate_gprel12
b34976b6
AM		 36 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
37 bfd_byte *, bfd_vma));
4e5ba5b7 38static bfd_reloc_status_type elf32_frv_relocate_gprelu12
b34976b6
AM		 39 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
40 bfd_byte *, bfd_vma));
4e5ba5b7 41static bfd_reloc_status_type elf32_frv_relocate_gprello
b34976b6
AM		 42 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
43 bfd_byte *, bfd_vma));
4e5ba5b7 44static bfd_reloc_status_type elf32_frv_relocate_gprelhi
b34976b6
AM		 45 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
46 bfd_byte *, bfd_vma));
4e5ba5b7
DB		 47static reloc_howto_type *frv_reloc_type_lookup
48 PARAMS ((bfd *, bfd_reloc_code_real_type));
b34976b6 49static void frv_info_to_howto_rela
947216bf 50 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
b34976b6
AM		 51static 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 **));
54static bfd_boolean elf32_frv_add_symbol_hook
555cd476 55 PARAMS (( bfd *, struct bfd_link_info *, Elf_Internal_Sym *,
b34976b6 56 const char **, flagword *, asection **, bfd_vma *));
4e5ba5b7 57static bfd_reloc_status_type frv_final_link_relocate
b34976b6
AM		 58 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
59 Elf_Internal_Rela *, bfd_vma));
60static bfd_boolean elf32_frv_gc_sweep_hook
61 PARAMS ((bfd *, struct bfd_link_info *, asection *, const
62 Elf_Internal_Rela *));
4e5ba5b7 63static asection * elf32_frv_gc_mark_hook
b34976b6
AM		 64 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
65 struct elf_link_hash_entry *, Elf_Internal_Sym *));
66static bfd_boolean elf32_frv_check_relocs
67 PARAMS ((bfd *, struct bfd_link_info *, asection *,
68 const Elf_Internal_Rela *));
69static int elf32_frv_machine
70 PARAMS ((bfd *));
71static bfd_boolean elf32_frv_object_p
72 PARAMS ((bfd *));
73static bfd_boolean frv_elf_set_private_flags
74 PARAMS ((bfd *, flagword));
75static bfd_boolean frv_elf_copy_private_bfd_data
76 PARAMS ((bfd *, bfd *));
77static bfd_boolean frv_elf_merge_private_bfd_data
78 PARAMS ((bfd *, bfd *));
79static bfd_boolean frv_elf_print_private_bfd_data
80 PARAMS ((bfd *, PTR));
4e5ba5b7
DB		 81
82static reloc_howto_type elf32_frv_howto_table [] =
83{
84 /* This reloc does nothing. */
85 HOWTO (R_FRV_NONE, /* type */
86 0, /* rightshift */
87 2, /* size (0 = byte, 1 = short, 2 = long) */
88 32, /* bitsize */
b34976b6 89 FALSE, /* pc_relative */
4e5ba5b7
DB		 90 0, /* bitpos */
91 complain_overflow_bitfield, /* complain_on_overflow */
92 bfd_elf_generic_reloc, /* special_function */
93 "R_FRV_NONE", /* name */
b34976b6 94 FALSE, /* partial_inplace */
4e5ba5b7
DB		 95 0, /* src_mask */
96 0, /* dst_mask */
b34976b6 97 FALSE), /* pcrel_offset */
4e5ba5b7
DB		 98
99 /* A 32 bit absolute relocation. */
100 HOWTO (R_FRV_32, /* type */
101 0, /* rightshift */
102 2, /* size (0 = byte, 1 = short, 2 = long) */
103 32, /* bitsize */
b34976b6 104 FALSE, /* pc_relative */
4e5ba5b7
DB		 105 0, /* bitpos */
106 complain_overflow_bitfield, /* complain_on_overflow */
107 bfd_elf_generic_reloc, /* special_function */
108 "R_FRV_32", /* name */
b34976b6 109 FALSE, /* partial_inplace */
4e5ba5b7
DB		 110 0xffffffff, /* src_mask */
111 0xffffffff, /* dst_mask */
b34976b6 112 FALSE), /* pcrel_offset */
4e5ba5b7
DB		 113
114 /* A 16 bit pc-relative relocation. */
115 HOWTO (R_FRV_LABEL16, /* type */
b15b52ef 116 2, /* rightshift */
4e5ba5b7
DB		 117 2, /* size (0 = byte, 1 = short, 2 = long) */
118 16, /* bitsize */
b34976b6 119 TRUE, /* pc_relative */
4e5ba5b7 120 0, /* bitpos */
e6deed0a 121 complain_overflow_signed, /* complain_on_overflow */
4e5ba5b7
DB		 122 bfd_elf_generic_reloc, /* special_function */
123 "R_FRV_LABEL16", /* name */
b34976b6 124 FALSE, /* partial_inplace */
4e5ba5b7
DB		 125 0xffff, /* src_mask */
126 0xffff, /* dst_mask */
b34976b6 127 TRUE), /* pcrel_offset */
4e5ba5b7
DB		 128
129 /* A 24-bit pc-relative relocation. */
130 HOWTO (R_FRV_LABEL24, /* type */
131 2, /* rightshift */
132 2, /* size (0 = byte, 1 = short, 2 = long) */
133 26, /* bitsize */
b34976b6 134 TRUE, /* pc_relative */
4e5ba5b7
DB		 135 0, /* bitpos */
136 complain_overflow_bitfield, /* complain_on_overflow */
137 bfd_elf_generic_reloc, /* special_function */
138 "R_FRV_LABEL24", /* name */
b34976b6 139 FALSE, /* partial_inplace */
4e5ba5b7
DB		 140 0x7e03ffff, /* src_mask */
141 0x7e03ffff, /* dst_mask */
b34976b6 142 TRUE), /* pcrel_offset */
4e5ba5b7
DB		 143
144 HOWTO (R_FRV_LO16, /* type */
145 0, /* rightshift */
146 2, /* size (0 = byte, 1 = short, 2 = long) */
147 16, /* bitsize */
b34976b6 148 FALSE, /* pc_relative */
4e5ba5b7
DB		 149 0, /* bitpos */
150 complain_overflow_dont, /* complain_on_overflow */
151 bfd_elf_generic_reloc, /* special_function */
152 "R_FRV_LO16", /* name */
b34976b6 153 FALSE, /* partial_inplace */
4e5ba5b7
DB		 154 0xffff, /* src_mask */
155 0xffff, /* dst_mask */
b34976b6 156 FALSE), /* pcrel_offset */
4e5ba5b7
DB		 157
158 HOWTO (R_FRV_HI16, /* type */
159 0, /* rightshift */
160 2, /* size (0 = byte, 1 = short, 2 = long) */
161 16, /* bitsize */
b34976b6 162 FALSE, /* pc_relative */
4e5ba5b7
DB		 163 0, /* bitpos */
164 complain_overflow_dont, /* complain_on_overflow */
165 bfd_elf_generic_reloc, /* special_function */
166 "R_FRV_HI16", /* name */
b34976b6 167 FALSE, /* partial_inplace */
4e5ba5b7
DB		 168 0xffff, /* src_mask */
169 0xffff, /* dst_mask */
b34976b6 170 FALSE), /* pcrel_offset */
4e5ba5b7
DB		 171
172 HOWTO (R_FRV_GPREL12, /* type */
173 0, /* rightshift */
174 2, /* size (0 = byte, 1 = short, 2 = long) */
175 12, /* bitsize */
b34976b6 176 FALSE, /* pc_relative */
4e5ba5b7
DB		 177 0, /* bitpos */
178 complain_overflow_dont, /* complain_on_overflow */
179 bfd_elf_generic_reloc, /* special_function */
180 "R_FRV_GPREL12", /* name */
b34976b6 181 FALSE, /* partial_inplace */
4e5ba5b7
DB		 182 0xfff, /* src_mask */
183 0xfff, /* dst_mask */
b34976b6 184 FALSE), /* pcrel_offset */
4e5ba5b7
DB		 185
186 HOWTO (R_FRV_GPRELU12, /* type */
187 0, /* rightshift */
188 2, /* size (0 = byte, 1 = short, 2 = long) */
189 12, /* bitsize */
b34976b6 190 FALSE, /* pc_relative */
4e5ba5b7
DB		 191 0, /* bitpos */
192 complain_overflow_dont, /* complain_on_overflow */
193 bfd_elf_generic_reloc, /* special_function */
194 "R_FRV_GPRELU12", /* name */
b34976b6 195 FALSE, /* partial_inplace */
4e5ba5b7
DB		 196 0xfff, /* src_mask */
197 0x3f03f, /* dst_mask */
b34976b6 198 FALSE), /* pcrel_offset */
4e5ba5b7
DB		 199
200 HOWTO (R_FRV_GPREL32, /* type */
201 0, /* rightshift */
202 2, /* size (0 = byte, 1 = short, 2 = long) */
203 32, /* bitsize */
b34976b6 204 FALSE, /* pc_relative */
4e5ba5b7
DB		 205 0, /* bitpos */
206 complain_overflow_dont, /* complain_on_overflow */
207 bfd_elf_generic_reloc, /* special_function */
208 "R_FRV_GPREL32", /* name */
b34976b6 209 FALSE, /* partial_inplace */
4e5ba5b7
DB		 210 0xffffffff, /* src_mask */
211 0xffffffff, /* dst_mask */
b34976b6 212 FALSE), /* pcrel_offset */
4e5ba5b7
DB		 213
214 HOWTO (R_FRV_GPRELHI, /* type */
215 0, /* rightshift */
216 2, /* size (0 = byte, 1 = short, 2 = long) */
217 16, /* bitsize */
b34976b6 218 FALSE, /* pc_relative */
4e5ba5b7
DB		 219 0, /* bitpos */
220 complain_overflow_dont, /* complain_on_overflow */
221 bfd_elf_generic_reloc, /* special_function */
222 "R_FRV_GPRELHI", /* name */
b34976b6 223 FALSE, /* partial_inplace */
4e5ba5b7
DB		 224 0xffff, /* src_mask */
225 0xffff, /* dst_mask */
b34976b6 226 FALSE), /* pcrel_offset */
4e5ba5b7
DB		 227
228 HOWTO (R_FRV_GPRELLO, /* type */
229 0, /* rightshift */
230 2, /* size (0 = byte, 1 = short, 2 = long) */
231 16, /* bitsize */
b34976b6 232 FALSE, /* pc_relative */
4e5ba5b7
DB		 233 0, /* bitpos */
234 complain_overflow_dont, /* complain_on_overflow */
235 bfd_elf_generic_reloc, /* special_function */
236 "R_FRV_GPRELLO", /* name */
b34976b6 237 FALSE, /* partial_inplace */
4e5ba5b7
DB		 238 0xffff, /* src_mask */
239 0xffff, /* dst_mask */
b34976b6 240 FALSE), /* pcrel_offset */
51532845
AO		 241
242 /* A 12-bit signed operand with the GOT offset for the address of
243 the symbol. */
244 HOWTO (R_FRV_GOT12, /* type */
245 0, /* rightshift */
246 2, /* size (0 = byte, 1 = short, 2 = long) */
247 12, /* bitsize */
248 FALSE, /* pc_relative */
249 0, /* bitpos */
250 complain_overflow_signed, /* complain_on_overflow */
251 bfd_elf_generic_reloc, /* special_function */
252 "R_FRV_GOT12", /* name */
253 FALSE, /* partial_inplace */
254 0xfff, /* src_mask */
255 0xfff, /* dst_mask */
256 FALSE), /* pcrel_offset */
257
258 /* The upper 16 bits of the GOT offset for the address of the
259 symbol. */
260 HOWTO (R_FRV_GOTHI, /* type */
261 0, /* rightshift */
262 2, /* size (0 = byte, 1 = short, 2 = long) */
263 16, /* bitsize */
264 FALSE, /* pc_relative */
265 0, /* bitpos */
266 complain_overflow_dont, /* complain_on_overflow */
267 bfd_elf_generic_reloc, /* special_function */
268 "R_FRV_GOTHI", /* name */
269 FALSE, /* partial_inplace */
270 0xffff, /* src_mask */
271 0xffff, /* dst_mask */
272 FALSE), /* pcrel_offset */
273
274 /* The lower 16 bits of the GOT offset for the address of the
275 symbol. */
276 HOWTO (R_FRV_GOTLO, /* type */
277 0, /* rightshift */
278 2, /* size (0 = byte, 1 = short, 2 = long) */
279 16, /* bitsize */
280 FALSE, /* pc_relative */
281 0, /* bitpos */
282 complain_overflow_dont, /* complain_on_overflow */
283 bfd_elf_generic_reloc, /* special_function */
284 "R_FRV_GOTLO", /* name */
285 FALSE, /* partial_inplace */
286 0xffff, /* src_mask */
287 0xffff, /* dst_mask */
288 FALSE), /* pcrel_offset */
289
290 /* The 32-bit address of the canonical descriptor of a function. */
291 HOWTO (R_FRV_FUNCDESC, /* type */
292 0, /* rightshift */
293 2, /* size (0 = byte, 1 = short, 2 = long) */
294 32, /* bitsize */
295 FALSE, /* pc_relative */
296 0, /* bitpos */
297 complain_overflow_bitfield, /* complain_on_overflow */
298 bfd_elf_generic_reloc, /* special_function */
299 "R_FRV_FUNCDESC", /* name */
300 FALSE, /* partial_inplace */
301 0xffffffff, /* src_mask */
302 0xffffffff, /* dst_mask */
303 FALSE), /* pcrel_offset */
304
305 /* A 12-bit signed operand with the GOT offset for the address of
306 canonical descriptor of a function. */
307 HOWTO (R_FRV_FUNCDESC_GOT12, /* type */
308 0, /* rightshift */
309 2, /* size (0 = byte, 1 = short, 2 = long) */
310 12, /* bitsize */
311 FALSE, /* pc_relative */
312 0, /* bitpos */
313 complain_overflow_signed, /* complain_on_overflow */
314 bfd_elf_generic_reloc, /* special_function */
315 "R_FRV_FUNCDESC_GOT12", /* name */
316 FALSE, /* partial_inplace */
317 0xfff, /* src_mask */
318 0xfff, /* dst_mask */
319 FALSE), /* pcrel_offset */
320
321 /* The upper 16 bits of the GOT offset for the address of the
322 canonical descriptor of a function. */
323 HOWTO (R_FRV_FUNCDESC_GOTHI, /* type */
324 0, /* rightshift */
325 2, /* size (0 = byte, 1 = short, 2 = long) */
326 16, /* bitsize */
327 FALSE, /* pc_relative */
328 0, /* bitpos */
329 complain_overflow_dont, /* complain_on_overflow */
330 bfd_elf_generic_reloc, /* special_function */
331 "R_FRV_FUNCDESC_GOTHI", /* name */
332 FALSE, /* partial_inplace */
333 0xffff, /* src_mask */
334 0xffff, /* dst_mask */
335 FALSE), /* pcrel_offset */
336
337 /* The lower 16 bits of the GOT offset for the address of the
338 canonical descriptor of a function. */
339 HOWTO (R_FRV_FUNCDESC_GOTLO, /* type */
340 0, /* rightshift */
341 2, /* size (0 = byte, 1 = short, 2 = long) */
342 16, /* bitsize */
343 FALSE, /* pc_relative */
344 0, /* bitpos */
345 complain_overflow_dont, /* complain_on_overflow */
346 bfd_elf_generic_reloc, /* special_function */
347 "R_FRV_FUNCDESC_GOTLO", /* name */
348 FALSE, /* partial_inplace */
349 0xffff, /* src_mask */
350 0xffff, /* dst_mask */
351 FALSE), /* pcrel_offset */
352
353 /* The 32-bit address of the canonical descriptor of a function. */
354 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
355 0, /* rightshift */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
357 64, /* bitsize */
358 FALSE, /* pc_relative */
359 0, /* bitpos */
360 complain_overflow_bitfield, /* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_FRV_FUNCDESC_VALUE", /* name */
363 FALSE, /* partial_inplace */
364 0xffffffff, /* src_mask */
365 0xffffffff, /* dst_mask */
366 FALSE), /* pcrel_offset */
367
368 /* A 12-bit signed operand with the GOT offset for the address of
369 canonical descriptor of a function. */
370 HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
371 0, /* rightshift */
372 2, /* size (0 = byte, 1 = short, 2 = long) */
373 12, /* bitsize */
374 FALSE, /* pc_relative */
375 0, /* bitpos */
376 complain_overflow_signed, /* complain_on_overflow */
377 bfd_elf_generic_reloc, /* special_function */
378 "R_FRV_FUNCDESC_GOTOFF12", /* name */
379 FALSE, /* partial_inplace */
380 0xfff, /* src_mask */
381 0xfff, /* dst_mask */
382 FALSE), /* pcrel_offset */
383
384 /* The upper 16 bits of the GOT offset for the address of the
385 canonical descriptor of a function. */
386 HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
387 0, /* rightshift */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
389 16, /* bitsize */
390 FALSE, /* pc_relative */
391 0, /* bitpos */
392 complain_overflow_dont, /* complain_on_overflow */
393 bfd_elf_generic_reloc, /* special_function */
394 "R_FRV_FUNCDESC_GOTOFFHI", /* name */
395 FALSE, /* partial_inplace */
396 0xffff, /* src_mask */
397 0xffff, /* dst_mask */
398 FALSE), /* pcrel_offset */
399
400 /* The lower 16 bits of the GOT offset for the address of the
401 canonical descriptor of a function. */
402 HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
403 0, /* rightshift */
404 2, /* size (0 = byte, 1 = short, 2 = long) */
405 16, /* bitsize */
406 FALSE, /* pc_relative */
407 0, /* bitpos */
408 complain_overflow_dont, /* complain_on_overflow */
409 bfd_elf_generic_reloc, /* special_function */
410 "R_FRV_FUNCDESC_GOTOFFLO", /* name */
411 FALSE, /* partial_inplace */
412 0xffff, /* src_mask */
413 0xffff, /* dst_mask */
414 FALSE), /* pcrel_offset */
415
416 /* A 12-bit signed operand with the GOT offset for the address of
417 the symbol. */
418 HOWTO (R_FRV_GOTOFF12, /* type */
419 0, /* rightshift */
420 2, /* size (0 = byte, 1 = short, 2 = long) */
421 12, /* bitsize */
422 FALSE, /* pc_relative */
423 0, /* bitpos */
424 complain_overflow_signed, /* complain_on_overflow */
425 bfd_elf_generic_reloc, /* special_function */
426 "R_FRV_GOTOFF12", /* name */
427 FALSE, /* partial_inplace */
428 0xfff, /* src_mask */
429 0xfff, /* dst_mask */
430 FALSE), /* pcrel_offset */
431
432 /* The upper 16 bits of the GOT offset for the address of the
433 symbol. */
434 HOWTO (R_FRV_GOTOFFHI, /* type */
435 0, /* rightshift */
436 2, /* size (0 = byte, 1 = short, 2 = long) */
437 16, /* bitsize */
438 FALSE, /* pc_relative */
439 0, /* bitpos */
440 complain_overflow_dont, /* complain_on_overflow */
441 bfd_elf_generic_reloc, /* special_function */
442 "R_FRV_GOTOFFHI", /* name */
443 FALSE, /* partial_inplace */
444 0xffff, /* src_mask */
445 0xffff, /* dst_mask */
446 FALSE), /* pcrel_offset */
447
448 /* The lower 16 bits of the GOT offset for the address of the
449 symbol. */
450 HOWTO (R_FRV_GOTOFFLO, /* type */
451 0, /* rightshift */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
453 16, /* bitsize */
454 FALSE, /* pc_relative */
455 0, /* bitpos */
456 complain_overflow_dont, /* complain_on_overflow */
457 bfd_elf_generic_reloc, /* special_function */
458 "R_FRV_GOTOFFLO", /* name */
459 FALSE, /* partial_inplace */
460 0xffff, /* src_mask */
461 0xffff, /* dst_mask */
462 FALSE), /* pcrel_offset */
463
4e5ba5b7
DB		 464};
465
466/* GNU extension to record C++ vtable hierarchy. */
467static reloc_howto_type elf32_frv_vtinherit_howto =
468 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
469 0, /* rightshift */
470 2, /* size (0 = byte, 1 = short, 2 = long) */
471 0, /* bitsize */
b34976b6 472 FALSE, /* pc_relative */
4e5ba5b7
DB		 473 0, /* bitpos */
474 complain_overflow_dont, /* complain_on_overflow */
475 NULL, /* special_function */
476 "R_FRV_GNU_VTINHERIT", /* name */
b34976b6 477 FALSE, /* partial_inplace */
4e5ba5b7
DB		 478 0, /* src_mask */
479 0, /* dst_mask */
b34976b6 480 FALSE); /* pcrel_offset */
4e5ba5b7
DB		 481
482 /* GNU extension to record C++ vtable member usage. */
483static reloc_howto_type elf32_frv_vtentry_howto =
484 HOWTO (R_FRV_GNU_VTENTRY, /* type */
485 0, /* rightshift */
486 2, /* size (0 = byte, 1 = short, 2 = long) */
487 0, /* bitsize */
b34976b6 488 FALSE, /* pc_relative */
4e5ba5b7
DB		 489 0, /* bitpos */
490 complain_overflow_dont, /* complain_on_overflow */
491 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
492 "R_FRV_GNU_VTENTRY", /* name */
b34976b6 493 FALSE, /* partial_inplace */
4e5ba5b7
DB		 494 0, /* src_mask */
495 0, /* dst_mask */
b34976b6 496 FALSE); /* pcrel_offset */
51532845
AO		 497
498/* The following 3 relocations are REL. The only difference to the
499 entries in the table above are that partial_inplace is TRUE. */
500static reloc_howto_type elf32_frv_rel_32_howto =
501 HOWTO (R_FRV_32, /* type */
502 0, /* rightshift */
503 2, /* size (0 = byte, 1 = short, 2 = long) */
504 32, /* bitsize */
505 FALSE, /* pc_relative */
506 0, /* bitpos */
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 */
514
515static reloc_howto_type elf32_frv_rel_funcdesc_howto =
516 HOWTO (R_FRV_FUNCDESC, /* type */
517 0, /* rightshift */
518 2, /* size (0 = byte, 1 = short, 2 = long) */
519 32, /* bitsize */
520 FALSE, /* pc_relative */
521 0, /* bitpos */
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 */
529
530static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
531 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
532 0, /* rightshift */
533 2, /* size (0 = byte, 1 = short, 2 = long) */
534 64, /* bitsize */
535 FALSE, /* pc_relative */
536 0, /* bitpos */
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 */
544
4e5ba5b7
DB		 545\f
546/* Map BFD reloc types to FRV ELF reloc types. */
547#if 0
548struct frv_reloc_map
549{
550 unsigned int bfd_reloc_val;
551 unsigned int frv_reloc_val;
552};
553
554static const struct frv_reloc_map frv_reloc_map [] =
555{
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 },
51532845
AO		 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 },
4e5ba5b7
DB		 581 { BFD_RELOC_VTABLE_INHERIT, R_FRV_GNU_VTINHERIT },
582 { BFD_RELOC_VTABLE_ENTRY, R_FRV_GNU_VTENTRY },
583};
584#endif
585
43850d5b
AO		 586extern const bfd_target bfd_elf32_frvfdpic_vec;
587#define IS_FDPIC(bfd) ((bfd)->xvec == &bfd_elf32_frvfdpic_vec)
4e5ba5b7 588
51532845
AO		 589/* An extension of the elf hash table data structure, containing some
590 additional FRV-specific data. */
43850d5b 591struct frvfdpic_elf_link_hash_table
4e5ba5b7 592{
51532845
AO		 593 struct elf_link_hash_table elf;
594
595 /* A pointer to the .got section. */
596 asection *sgot;
597 /* A pointer to the .rel.got section. */
598 asection *sgotrel;
599 /* A pointer to the .rofixup section. */
600 asection *sgotfixup;
601 /* A pointer to the .plt section. */
602 asection *splt;
603 /* A pointer to the .rel.plt section. */
604 asection *spltrel;
605 /* GOT base offset. */
606 bfd_vma got0;
607 /* Location of the first non-lazy PLT entry, i.e., the number of
608 bytes taken by lazy PLT entries. */
609 bfd_vma plt0;
610 /* A hash table holding information about which symbols were
611 referenced with which PIC-related relocations. */
612 struct htab *relocs_info;
613};
4e5ba5b7 614
51532845
AO		 615/* Get the FRV ELF linker hash table from a link_info structure. */
616
43850d5b
AO		 617#define frvfdpic_hash_table(info) \
618 ((struct frvfdpic_elf_link_hash_table *) ((info)->hash))
619
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)
51532845
AO		 636
637/* Create an FRV ELF linker hash table. */
638
639static struct bfd_link_hash_table *
43850d5b 640frvfdpic_elf_link_hash_table_create (bfd *abfd)
51532845 641{
43850d5b
AO		 642 struct frvfdpic_elf_link_hash_table *ret;
643 bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
4e5ba5b7 644
51532845
AO		 645 ret = bfd_zalloc (abfd, amt);
646 if (ret == NULL)
647 return NULL;
4e5ba5b7 648
51532845
AO		 649 if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd,
650 _bfd_elf_link_hash_newfunc))
651 {
652 free (ret);
653 return NULL;
654 }
4e5ba5b7 655
51532845
AO		 656 return &ret->elf.root;
657}
4e5ba5b7 658
51532845
AO		 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. */
43850d5b 662#define FRVFDPIC_SYM_LOCAL(INFO, H) \
51532845 663 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
7e2294f9 664 || ! elf_hash_table (INFO)->dynamic_sections_created)
43850d5b 665#define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
51532845
AO		 666 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
667
668/* This structure collects information on what kind of GOT, PLT or
669 function descriptors are required by relocations that reference a
670 certain symbol. */
43850d5b 671struct frvfdpic_relocs_info
51532845
AO		 672{
673 /* The index of the symbol, as stored in the relocation r_info, if
674 we have a local symbol; -1 otherwise. */
675 long symndx;
676 union
677 {
678 /* The input bfd in which the symbol is defined, if it's a local
679 symbol. */
680 bfd *abfd;
681 /* If symndx == -1, the hash table entry corresponding to a global
682 symbol (even if it turns out to bind locally, in which case it
683 should ideally be replaced with section's symndx + addend). */
684 struct elf_link_hash_entry *h;
685 } d;
686 /* The addend of the relocation that references the symbol. */
687 bfd_vma addend;
688
689 /* The fields above are used to identify an entry. The fields below
690 contain information on how an entry is used and, later on, which
691 locations it was assigned. */
692 /* The following 3 fields record whether the symbol+addend above was
693 ever referenced with a GOT relocation. The 12 suffix indicates a
694 GOT12 relocation; los is used for GOTLO relocations that are not
695 matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
696 pairs. */
697 unsigned got12:1;
698 unsigned gotlos:1;
699 unsigned gothilo:1;
700 /* Whether a FUNCDESC relocation references symbol+addend. */
701 unsigned fd:1;
702 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
703 unsigned fdgot12:1;
704 unsigned fdgotlos:1;
705 unsigned fdgothilo:1;
706 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
707 unsigned fdgoff12:1;
708 unsigned fdgofflos:1;
709 unsigned fdgoffhilo:1;
710 /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
711 GOTOFFHI relocations. The addend doesn't really matter, since we
712 envision that this will only be used to check whether the symbol
713 is mapped to the same segment as the got. */
714 unsigned gotoff:1;
715 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
716 unsigned call:1;
717 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
718 relocation. */
719 unsigned sym:1;
720 /* Whether we need a PLT entry for a symbol. Should be implied by
721 something like:
43850d5b 722 (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
51532845
AO		 723 unsigned plt:1;
724 /* Whether a function descriptor should be created in this link unit
725 for symbol+addend. Should be implied by something like:
726 (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
727 || ((fd || fdgot12 || fdgotlos || fdgothilo)
43850d5b 728 && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
51532845
AO		 729 unsigned privfd:1;
730 /* Whether a lazy PLT entry is needed for this symbol+addend.
731 Should be implied by something like:
43850d5b 732 (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
51532845
AO		 733 && ! (info->flags & DF_BIND_NOW)) */
734 unsigned lazyplt:1;
735 /* Whether we've already emitted GOT relocations and PLT entries as
736 needed for this symbol. */
737 unsigned done:1;
738
739 /* The number of R_FRV_32, R_FRV_FUNCDESC and R_FRV_FUNCDESC_VALUE
740 relocations referencing the symbol. */
741 unsigned relocs32, relocsfd, relocsfdv;
742
3b712a1a
AO		 743 /* The number of .rofixups entries and dynamic relocations allocated
744 for this symbol, minus any that might have already been used. */
745 unsigned fixups, dynrelocs;
746
51532845
AO		 747 /* The offsets of the GOT entries assigned to symbol+addend, to the
748 function descriptor's address, and to a function descriptor,
749 respectively. Should be zero if unassigned. The offsets are
750 counted from the value that will be assigned to the PIC register,
751 not from the beginning of the .got section. */
752 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
753 /* The offsets of the PLT entries assigned to symbol+addend,
754 non-lazy and lazy, respectively. If unassigned, should be
755 (bfd_vma)-1. */
756 bfd_vma plt_entry, lzplt_entry;
757};
4e5ba5b7 758
43850d5b 759/* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
51532845 760static hashval_t
43850d5b 761frvfdpic_relocs_info_hash (const void *entry_)
51532845 762{
43850d5b 763 const struct frvfdpic_relocs_info *entry = entry_;
4e5ba5b7 764
51532845
AO		 765 return (entry->symndx == -1
766 ? entry->d.h->root.root.hash
767 : entry->symndx + entry->d.abfd->id * 257) + entry->addend;
4e5ba5b7
DB		 768}
769
43850d5b 770/* Test whether the key fields of two frvfdpic_relocs_info entries are
51532845
AO		 771 identical. */
772static int
43850d5b 773frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
51532845 774{
43850d5b
AO		 775 const struct frvfdpic_relocs_info *e1 = entry1;
776 const struct frvfdpic_relocs_info *e2 = entry2;
4e5ba5b7 777
51532845
AO		 778 return e1->symndx == e2->symndx && e1->addend == e2->addend
779 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
780}
781
782/* Find or create an entry in a hash table HT that matches the key
783 fields of the given ENTRY. If it's not found, memory for a new
784 entry is allocated in ABFD's obstack. */
43850d5b
AO		 785static struct frvfdpic_relocs_info *
786frvfdpic_relocs_info_find (struct htab *ht,
787 bfd *abfd,
788 const struct frvfdpic_relocs_info *entry,
789 enum insert_option insert)
4e5ba5b7 790{
43850d5b
AO		 791 struct frvfdpic_relocs_info **loc =
792 (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
3b712a1a
AO		 793
794 if (! loc)
795 return NULL;
4e5ba5b7 796
51532845
AO		 797 if (*loc)
798 return *loc;
4e5ba5b7 799
51532845 800 *loc = bfd_zalloc (abfd, sizeof (**loc));
b34976b6 801
51532845
AO		 802 if (! *loc)
803 return *loc;
804
805 (*loc)->symndx = entry->symndx;
806 (*loc)->d = entry->d;
807 (*loc)->addend = entry->addend;
808 (*loc)->plt_entry = (bfd_vma)-1;
809 (*loc)->lzplt_entry = (bfd_vma)-1;
810
811 return *loc;
812}
813
814/* Obtain the address of the entry in HT associated with H's symbol +
815 addend, creating a new entry if none existed. ABFD is only used
816 for memory allocation purposes. */
43850d5b
AO		 817inline static struct frvfdpic_relocs_info *
818frvfdpic_relocs_info_for_global (struct htab *ht,
819 bfd *abfd,
820 struct elf_link_hash_entry *h,
821 bfd_vma addend,
822 enum insert_option insert)
51532845 823{
43850d5b 824 struct frvfdpic_relocs_info entry;
51532845
AO		 825
826 entry.symndx = -1;
827 entry.d.h = h;
828 entry.addend = addend;
829
43850d5b 830 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
51532845
AO		 831}
832
833/* Obtain the address of the entry in HT associated with the SYMNDXth
834 local symbol of the input bfd ABFD, plus the addend, creating a new
f12123c0 835 entry if none existed. */
43850d5b
AO		 836inline static struct frvfdpic_relocs_info *
837frvfdpic_relocs_info_for_local (struct htab *ht,
838 bfd *abfd,
839 long symndx,
840 bfd_vma addend,
841 enum insert_option insert)
51532845 842{
43850d5b 843 struct frvfdpic_relocs_info entry;
51532845
AO		 844
845 entry.symndx = symndx;
846 entry.d.abfd = abfd;
847 entry.addend = addend;
848
43850d5b 849 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
3b712a1a
AO		 850}
851
852/* Merge fields set by check_relocs() of two entries that end up being
853 mapped to the same (presumably global) symbol. */
854
855inline static void
43850d5b
AO		 856frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
857 struct frvfdpic_relocs_info const *e1)
3b712a1a
AO		 858{
859 e2->got12 |= e1->got12;
860 e2->gotlos |= e1->gotlos;
861 e2->gothilo |= e1->gothilo;
862 e2->fd |= e1->fd;
863 e2->fdgot12 |= e1->fdgot12;
864 e2->fdgotlos |= e1->fdgotlos;
865 e2->fdgothilo |= e1->fdgothilo;
866 e2->fdgoff12 |= e1->fdgoff12;
867 e2->fdgofflos |= e1->fdgofflos;
868 e2->fdgoffhilo |= e1->fdgoffhilo;
869 e2->gotoff |= e1->gotoff;
870 e2->call |= e1->call;
871 e2->sym |= e1->sym;
872
873#if 0
43850d5b
AO		 874 /* These are set in _frvfdpic_count_got_plt_entries() or later, and this
875 function is only called in _frvfdpic_resolve_final_relocs_info(), that
3b712a1a
AO		 876 runs just before it, so we don't have to worry about the fields
877 below. */
878
879 e2->plt |= e1->plt;
880 e2->privfd |= e1->privfd;
881 e2->lazyplt |= e1->lazyplt;
882 e2->done |= e1->done;
883
884 e2->relocs32 += e1->relocs32;
885 e2->relocsfd += e1->relocsfd;
886 e2->relocsfdv += e1->relocsfdv;
887 e2->fixups += e1->fixups;
888 e2->dynrelocs += e1->dynrelocs;
889
890 if (abs (e1->got_entry) < abs (e2->got_entry))
891 e2->got_entry = e1->got_entry;
892 if (abs (e1->fdgot_entry) < abs (e2->fdgot_entry))
893 e2->fdgot_entry = e1->fdgot_entry;
894 if (abs (e1->fd_entry) < abs (e2->fd_entry))
895 e2->fd_entry = e1->fd_entry;
896
897 if (e1->plt_entry < e2->plt_entry)
898 e2->plt_entry = e1->plt_entry;
899 if (e1->lzplt_entry < e2->lzplt_entry)
900 e2->lzplt_entry = e1->lzplt_entry;
901#endif
51532845
AO		 902}
903
904/* Every block of 65535 lazy PLT entries shares a single call to the
905 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
906 32767, counting from 0). All other lazy PLT entries branch to it
907 in a single instruction. */
908
43850d5b
AO		 909#define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
910#define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
51532845
AO		 911
912/* Add a dynamic relocation to the SRELOC section. */
913
914inline static bfd_vma
43850d5b
AO		 915_frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
916 int reloc_type, long dynindx, bfd_vma addend,
917 struct frvfdpic_relocs_info *entry)
51532845
AO		 918{
919 Elf_Internal_Rela outrel;
920 bfd_vma reloc_offset;
921
922 outrel.r_offset = offset;
923 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
924 outrel.r_addend = addend;
925
926 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
eea6121a 927 BFD_ASSERT (reloc_offset < sreloc->size);
51532845
AO		 928 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
929 sreloc->contents + reloc_offset);
930 sreloc->reloc_count++;
931
3f980e41
AO		 932 /* If the entry's index is zero, this relocation was probably to a
933 linkonce section that got discarded. We reserved a dynamic
934 relocation, but it was for another entry than the one we got at
935 the time of emitting the relocation. Unfortunately there's no
936 simple way for us to catch this situation, since the relocation
937 is cleared right before calling relocate_section, at which point
938 we no longer know what the relocation used to point to. */
939 if (entry->symndx)
940 {
941 BFD_ASSERT (entry->dynrelocs > 0);
942 entry->dynrelocs--;
943 }
3b712a1a 944
51532845
AO		 945 return reloc_offset;
946}
947
948/* Add a fixup to the ROFIXUP section. */
949
950static bfd_vma
43850d5b
AO		 951_frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
952 struct frvfdpic_relocs_info *entry)
51532845
AO		 953{
954 bfd_vma fixup_offset;
955
956 if (rofixup->flags & SEC_EXCLUDE)
957 return -1;
958
959 fixup_offset = rofixup->reloc_count * 4;
960 if (rofixup->contents)
961 {
eea6121a 962 BFD_ASSERT (fixup_offset < rofixup->size);
51532845
AO		 963 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
964 }
965 rofixup->reloc_count++;
3b712a1a 966
3f980e41 967 if (entry && entry->symndx)
3b712a1a 968 {
3f980e41
AO		 969 /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
970 above. */
3b712a1a
AO		 971 BFD_ASSERT (entry->fixups > 0);
972 entry->fixups--;
973 }
974
51532845
AO		 975 return fixup_offset;
976}
977
978/* Find the segment number in which OSEC, and output section, is
979 located. */
980
981static unsigned
43850d5b 982_frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
51532845
AO		 983{
984 struct elf_segment_map *m;
985 Elf_Internal_Phdr *p;
986
987 /* Find the segment that contains the output_section. */
988 for (m = elf_tdata (output_bfd)->segment_map,
989 p = elf_tdata (output_bfd)->phdr;
990 m != NULL;
991 m = m->next, p++)
992 {
993 int i;
994
995 for (i = m->count - 1; i >= 0; i--)
996 if (m->sections[i] == osec)
997 break;
998
999 if (i >= 0)
1000 break;
1001 }
1002
1003 return p - elf_tdata (output_bfd)->phdr;
1004}
1005
1006inline static bfd_boolean
43850d5b 1007_frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
51532845 1008{
43850d5b 1009 unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
51532845
AO		 1010
1011 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1012}
1013
1014/* Generate relocations for GOT entries, function descriptors, and
1015 code for PLT and lazy PLT entries. */
1016
1017inline static bfd_boolean
43850d5b
AO		 1018_frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1019 bfd *output_bfd,
1020 struct bfd_link_info *info,
1021 asection *sec,
1022 Elf_Internal_Sym *sym,
1023 bfd_vma addend)
f12123c0 1024
51532845
AO		 1025{
1026 bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1027 int dynindx = -1;
1028
1029 if (entry->done)
1030 return TRUE;
1031 entry->done = 1;
1032
1033 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry)
1034 {
1035 /* If the symbol is dynamic, consider it for dynamic
1036 relocations, otherwise decay to section + offset. */
1037 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1038 dynindx = entry->d.h->dynindx;
1039 else
1040 {
1041 if (sec->output_section
1042 && ! bfd_is_abs_section (sec->output_section)
1043 && ! bfd_is_und_section (sec->output_section))
1044 dynindx = elf_section_data (sec->output_section)->dynindx;
1045 else
1046 dynindx = 0;
1047 }
1048 }
1049
1050 /* Generate relocation for GOT entry pointing to the symbol. */
1051 if (entry->got_entry)
1052 {
1053 int idx = dynindx;
1054 bfd_vma ad = addend;
1055
1056 /* If the symbol is dynamic but binds locally, use
1057 section+offset. */
43850d5b
AO		 1058 if (sec && (entry->symndx != -1
1059 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
51532845
AO		 1060 {
1061 if (entry->symndx == -1)
1062 ad += entry->d.h->root.u.def.value;
1063 else
1064 ad += sym->st_value;
1065 ad += sec->output_offset;
1066 if (sec->output_section && elf_section_data (sec->output_section))
1067 idx = elf_section_data (sec->output_section)->dynindx;
1068 else
1069 idx = 0;
1070 }
1071
1072 /* If we're linking an executable at a fixed address, we can
1073 omit the dynamic relocation as long as the symbol is local to
1074 this module. */
1075 if (info->executable && !info->pie
43850d5b
AO		 1076 && (entry->symndx != -1
1077 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
51532845
AO		 1078 {
1079 if (sec)
1080 ad += sec->output_section->vma;
3b712a1a
AO		 1081 if (entry->symndx != -1
1082 || entry->d.h->root.type != bfd_link_hash_undefweak)
43850d5b
AO		 1083 _frvfdpic_add_rofixup (output_bfd,
1084 frvfdpic_gotfixup_section (info),
1085 frvfdpic_got_section (info)->output_section
1086 ->vma
1087 + frvfdpic_got_section (info)->output_offset
1088 + frvfdpic_got_initial_offset (info)
1089 + entry->got_entry, entry);
51532845
AO		 1090 }
1091 else
43850d5b
AO		 1092 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1093 _bfd_elf_section_offset
1094 (output_bfd, info,
1095 frvfdpic_got_section (info),
1096 frvfdpic_got_initial_offset (info)
1097 + entry->got_entry)
1098 + frvfdpic_got_section (info)
1099 ->output_section->vma
1100 + frvfdpic_got_section (info)->output_offset,
1101 R_FRV_32, idx, ad, entry);
f12123c0 1102
51532845 1103 bfd_put_32 (output_bfd, ad,
43850d5b
AO		 1104 frvfdpic_got_section (info)->contents
1105 + frvfdpic_got_initial_offset (info)
51532845
AO		 1106 + entry->got_entry);
1107 }
1108
1109 /* Generate relocation for GOT entry pointing to a canonical
1110 function descriptor. */
1111 if (entry->fdgot_entry)
1112 {
1113 int reloc, idx;
072c8903 1114 bfd_vma ad = 0;
f12123c0 1115
072c8903
AO		 1116 if (! (entry->symndx == -1
1117 && entry->d.h->root.type == bfd_link_hash_undefweak
43850d5b 1118 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
51532845 1119 {
072c8903
AO		 1120 /* If the symbol is dynamic and there may be dynamic symbol
1121 resolution because we are, or are linked with, a shared
1122 library, emit a FUNCDESC relocation such that the dynamic
1123 linker will allocate the function descriptor. If the
1124 symbol needs a non-local function descriptor but binds
1125 locally (e.g., its visibility is protected, emit a
1126 dynamic relocation decayed to section+offset. */
43850d5b
AO		 1127 if (entry->symndx == -1
1128 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1129 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
072c8903
AO		 1130 && !(info->executable && !info->pie))
1131 {
1132 reloc = R_FRV_FUNCDESC;
1133 idx = elf_section_data (entry->d.h->root.u.def.section
1134 ->output_section)->dynindx;
1135 ad = entry->d.h->root.u.def.section->output_offset
1136 + entry->d.h->root.u.def.value;
1137 }
1138 else if (entry->symndx == -1
43850d5b 1139 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
072c8903
AO		 1140 {
1141 reloc = R_FRV_FUNCDESC;
1142 idx = dynindx;
1143 ad = addend;
1144 if (ad)
1145 return FALSE;
1146 }
51532845 1147 else
072c8903
AO		 1148 {
1149 /* Otherwise, we know we have a private function descriptor,
1150 so reference it directly. */
1151 if (elf_hash_table (info)->dynamic_sections_created)
1152 BFD_ASSERT (entry->privfd);
1153 reloc = R_FRV_32;
43850d5b 1154 idx = elf_section_data (frvfdpic_got_section (info)
072c8903 1155 ->output_section)->dynindx;
43850d5b
AO		 1156 ad = frvfdpic_got_section (info)->output_offset
1157 + frvfdpic_got_initial_offset (info) + entry->fd_entry;
072c8903
AO		 1158 }
1159
1160 /* If there is room for dynamic symbol resolution, emit the
1161 dynamic relocation. However, if we're linking an
1162 executable at a fixed location, we won't have emitted a
1163 dynamic symbol entry for the got section, so idx will be
1164 zero, which means we can and should compute the address
1165 of the private descriptor ourselves. */
1166 if (info->executable && !info->pie
1167 && (entry->symndx != -1
43850d5b 1168 || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
51532845 1169 {
43850d5b
AO		 1170 ad += frvfdpic_got_section (info)->output_section->vma;
1171 _frvfdpic_add_rofixup (output_bfd,
1172 frvfdpic_gotfixup_section (info),
1173 frvfdpic_got_section (info)
1174 ->output_section->vma
1175 + frvfdpic_got_section (info)
1176 ->output_offset
1177 + frvfdpic_got_initial_offset (info)
1178 + entry->fdgot_entry, entry);
51532845 1179 }
072c8903 1180 else
43850d5b
AO		 1181 _frvfdpic_add_dyn_reloc (output_bfd,
1182 frvfdpic_gotrel_section (info),
1183 _bfd_elf_section_offset
1184 (output_bfd, info,
1185 frvfdpic_got_section (info),
1186 frvfdpic_got_initial_offset (info)
1187 + entry->fdgot_entry)
1188 + frvfdpic_got_section (info)
1189 ->output_section->vma
1190 + frvfdpic_got_section (info)
1191 ->output_offset,
1192 reloc, idx, ad, entry);
51532845 1193 }
51532845
AO		 1194
1195 bfd_put_32 (output_bfd, ad,
43850d5b
AO		 1196 frvfdpic_got_section (info)->contents
1197 + frvfdpic_got_initial_offset (info)
51532845
AO		 1198 + entry->fdgot_entry);
1199 }
1200
1201 /* Generate relocation to fill in a private function descriptor in
1202 the GOT. */
1203 if (entry->fd_entry)
1204 {
1205 int idx = dynindx;
1206 bfd_vma ad = addend;
1207 bfd_vma ofst;
1208 long lowword, highword;
1209
1210 /* If the symbol is dynamic but binds locally, use
1211 section+offset. */
43850d5b
AO		 1212 if (sec && (entry->symndx != -1
1213 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
51532845
AO		 1214 {
1215 if (entry->symndx == -1)
1216 ad += entry->d.h->root.u.def.value;
1217 else
1218 ad += sym->st_value;
1219 ad += sec->output_offset;
1220 if (sec->output_section && elf_section_data (sec->output_section))
1221 idx = elf_section_data (sec->output_section)->dynindx;
1222 else
1223 idx = 0;
1224 }
1225
1226 /* If we're linking an executable at a fixed address, we can
1227 omit the dynamic relocation as long as the symbol is local to
1228 this module. */
1229 if (info->executable && !info->pie
43850d5b 1230 && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
51532845
AO		 1231 {
1232 if (sec)
1233 ad += sec->output_section->vma;
1234 ofst = 0;
3b712a1a
AO		 1235 if (entry->symndx != -1
1236 || entry->d.h->root.type != bfd_link_hash_undefweak)
51532845 1237 {
43850d5b
AO		 1238 _frvfdpic_add_rofixup (output_bfd,
1239 frvfdpic_gotfixup_section (info),
1240 frvfdpic_got_section (info)
1241 ->output_section->vma
1242 + frvfdpic_got_section (info)
1243 ->output_offset
1244 + frvfdpic_got_initial_offset (info)
1245 + entry->fd_entry, entry);
1246 _frvfdpic_add_rofixup (output_bfd,
1247 frvfdpic_gotfixup_section (info),
1248 frvfdpic_got_section (info)
1249 ->output_section->vma
1250 + frvfdpic_got_section (info)
1251 ->output_offset
1252 + frvfdpic_got_initial_offset (info)
1253 + entry->fd_entry + 4, entry);
51532845
AO		 1254 }
1255 }
1256 else
1257 {
1258 ofst =
43850d5b
AO		 1259 _frvfdpic_add_dyn_reloc (output_bfd,
1260 entry->lazyplt
1261 ? frvfdpic_pltrel_section (info)
1262 : frvfdpic_gotrel_section (info),
1263 _bfd_elf_section_offset
1264 (output_bfd, info,
1265 frvfdpic_got_section (info),
1266 frvfdpic_got_initial_offset (info)
1267 + entry->fd_entry)
1268 + frvfdpic_got_section (info)
1269 ->output_section->vma
1270 + frvfdpic_got_section (info)
1271 ->output_offset,
1272 R_FRV_FUNCDESC_VALUE, idx, ad, entry);
51532845
AO		 1273 }
1274
1275 /* If we've omitted the dynamic relocation, just emit the fixed
1276 addresses of the symbol and of the local GOT base offset. */
1277 if (info->executable && !info->pie && sec && sec->output_section)
1278 {
1279 lowword = ad;
43850d5b
AO		 1280 highword = frvfdpic_got_section (info)->output_section->vma
1281 + frvfdpic_got_section (info)->output_offset
1282 + frvfdpic_got_initial_offset (info);
51532845
AO		 1283 }
1284 else if (entry->lazyplt)
1285 {
1286 if (ad)
1287 return FALSE;
f12123c0 1288
51532845
AO		 1289 fd_lazy_rel_offset = ofst;
1290
1291 /* A function descriptor used for lazy or local resolving is
1292 initialized such that its high word contains the output
1293 section index in which the PLT entries are located, and
1294 the low word contains the address of the lazy PLT entry
1295 entry point, that must be within the memory region
1296 assigned to that section. */
1297 lowword = entry->lzplt_entry + 4
43850d5b
AO		 1298 + frvfdpic_plt_section (info)->output_offset
1299 + frvfdpic_plt_section (info)->output_section->vma;
f12123c0 1300 highword = _frvfdpic_osec_to_segment
43850d5b 1301 (output_bfd, frvfdpic_plt_section (info)->output_section);
51532845
AO		 1302 }
1303 else
1304 {
1305 /* A function descriptor for a local function gets the index
1306 of the section. For a non-local function, it's
1307 disregarded. */
1308 lowword = ad;
1309 if (entry->symndx == -1 && entry->d.h->dynindx != -1
1310 && entry->d.h->dynindx == idx)
1311 highword = 0;
1312 else
43850d5b
AO		 1313 highword = _frvfdpic_osec_to_segment
1314 (output_bfd, sec->output_section);
51532845
AO		 1315 }
1316
1317 bfd_put_32 (output_bfd, lowword,
43850d5b
AO		 1318 frvfdpic_got_section (info)->contents
1319 + frvfdpic_got_initial_offset (info)
51532845
AO		 1320 + entry->fd_entry);
1321 bfd_put_32 (output_bfd, highword,
43850d5b
AO		 1322 frvfdpic_got_section (info)->contents
1323 + frvfdpic_got_initial_offset (info)
51532845
AO		 1324 + entry->fd_entry + 4);
1325 }
1326
1327 /* Generate code for the PLT entry. */
1328 if (entry->plt_entry != (bfd_vma) -1)
1329 {
43850d5b
AO		 1330 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1331 + entry->plt_entry;
51532845
AO		 1332
1333 BFD_ASSERT (entry->fd_entry);
1334
1335 /* Figure out what kind of PLT entry we need, depending on the
1336 location of the function descriptor within the GOT. */
1337 if (entry->fd_entry >= -(1 << (12 - 1))
1338 && entry->fd_entry < (1 << (12 - 1)))
1339 {
1340 /* lddi @(gr15, fd_entry), gr14 */
1341 bfd_put_32 (output_bfd,
1342 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1343 plt_code);
1344 plt_code += 4;
1345 }
1346 else
1347 {
1348 if (entry->fd_entry >= -(1 << (16 - 1))
1349 && entry->fd_entry < (1 << (16 - 1)))
1350 {
1351 /* setlos lo(fd_entry), gr14 */
1352 bfd_put_32 (output_bfd,
1353 0x9cfc0000
1354 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1355 plt_code);
1356 plt_code += 4;
1357 }
1358 else
1359 {
1360 /* sethi.p hi(fd_entry), gr14
1361 setlo lo(fd_entry), gr14 */
1362 bfd_put_32 (output_bfd,
1363 0x1cf80000
1364 | ((entry->fd_entry >> 16)
1365 & (((bfd_vma)1 << 16) - 1)),
1366 plt_code);
1367 bfd_put_32 (output_bfd,
1368 0x9cf40000
1369 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1370 plt_code);
1371 plt_code += 8;
1372 }
1373 /* ldd @(gr14,gr15),gr14 */
1374 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1375 plt_code += 4;
1376 }
1377 /* jmpl @(gr14,gr0) */
1378 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1379 }
1380
1381 /* Generate code for the lazy PLT entry. */
1382 if (entry->lzplt_entry != (bfd_vma) -1)
1383 {
43850d5b 1384 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
51532845
AO		 1385 + entry->lzplt_entry;
1386 bfd_vma resolverStub_addr;
1387
1388 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1389 lzplt_code += 4;
1390
43850d5b
AO		 1391 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1392 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1393 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1394 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
51532845
AO		 1395
1396 if (entry->lzplt_entry == resolverStub_addr)
1397 {
1398 /* This is a lazy PLT entry that includes a resolver call. */
1399 /* ldd @(gr15,gr0), gr4
1400 jmpl @(gr4,gr0) */
1401 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1402 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1403 }
1404 else
1405 {
1406 /* bra resolverStub */
1407 bfd_put_32 (output_bfd,
1408 0xc01a0000
1409 | (((resolverStub_addr - entry->lzplt_entry)
1410 / 4) & (((bfd_vma)1 << 16) - 1)),
1411 lzplt_code);
1412 }
1413 }
1414
1415 return TRUE;
1416}
1417
1418/* Handle an FRV small data reloc. */
1419
1420static bfd_reloc_status_type
1421elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation,
1422 contents, value)
1423 struct bfd_link_info *info;
1424 bfd *input_bfd;
1425 asection *input_section;
1426 Elf_Internal_Rela *relocation;
1427 bfd_byte *contents;
1428 bfd_vma value;
1429{
1430 bfd_vma insn;
1431 bfd_vma gp;
1432 struct bfd_link_hash_entry *h;
1433
1434 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
1435
1436 gp = (h->u.def.value
1437 + h->u.def.section->output_section->vma
1438 + h->u.def.section->output_offset);
1439
1440 value -= input_section->output_section->vma;
1441 value -= (gp - input_section->output_section->vma);
1442
1443 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
1444
1445 value += relocation->r_addend;
1446
1447 if ((long) value > 0x7ff || (long) value < -0x800)
1448 return bfd_reloc_overflow;
1449
1450 bfd_put_32 (input_bfd,
1451 (insn & 0xfffff000) | (value & 0xfff),
1452 contents + relocation->r_offset);
1453
1454 return bfd_reloc_ok;
1455}
1456
1457/* Handle an FRV small data reloc. for the u12 field. */
1458
1459static bfd_reloc_status_type
1460elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation,
1461 contents, value)
1462 struct bfd_link_info *info;
1463 bfd *input_bfd;
1464 asection *input_section;
1465 Elf_Internal_Rela *relocation;
1466 bfd_byte *contents;
1467 bfd_vma value;
1468{
1469 bfd_vma insn;
1470 bfd_vma gp;
1471 struct bfd_link_hash_entry *h;
1472 bfd_vma mask;
1473
1474 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
1475
1476 gp = (h->u.def.value
1477 + h->u.def.section->output_section->vma
1478 + h->u.def.section->output_offset);
1479
1480 value -= input_section->output_section->vma;
1481 value -= (gp - input_section->output_section->vma);
4e5ba5b7
DB		 1482
1483 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
1484
1485 value += relocation->r_addend;
1486
1487 if ((long) value > 0x7ff || (long) value < -0x800)
1488 return bfd_reloc_overflow;
1489
1490 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
1491 mask = 0x3f03f;
1492 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
1493
1494 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
1495
1496 return bfd_reloc_ok;
1497}
1498
1499/* Handle an FRV ELF HI16 reloc. */
1500
1501static bfd_reloc_status_type
1502elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value)
1503 bfd *input_bfd;
1504 Elf_Internal_Rela *relhi;
1505 bfd_byte *contents;
1506 bfd_vma value;
1507{
1508 bfd_vma insn;
1509
1510 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
1511
1512 value += relhi->r_addend;
1513 value = ((value >> 16) & 0xffff);
1514
1515 insn = (insn & 0xffff0000) | value;
1516
1517 if ((long) value > 0xffff || (long) value < -0x10000)
1518 return bfd_reloc_overflow;
1519
1520 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
1521 return bfd_reloc_ok;
1522
1523}
1524static bfd_reloc_status_type
1525elf32_frv_relocate_lo16 (input_bfd, rello, contents, value)
1526 bfd *input_bfd;
1527 Elf_Internal_Rela *rello;
1528 bfd_byte *contents;
1529 bfd_vma value;
1530{
1531 bfd_vma insn;
1532
1533 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
1534
1535 value += rello->r_addend;
1536 value = value & 0xffff;
1537
1538 insn = (insn & 0xffff0000) | value;
1539
1540 if ((long) value > 0xffff || (long) value < -0x10000)
1541 return bfd_reloc_overflow;
1542
1543 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
1544 return bfd_reloc_ok;
1545}
1546
1547/* Perform the relocation for the CALL label24 instruction. */
1548
1549static bfd_reloc_status_type
1550elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value)
1551 bfd *input_bfd;
1552 asection *input_section;
1553 Elf_Internal_Rela *rello;
1554 bfd_byte *contents;
1555 bfd_vma value;
1556{
1557 bfd_vma insn;
1558 bfd_vma label6;
1559 bfd_vma label18;
1560
1561 /* The format for the call instruction is:
1562
b34976b6 1563 0 000000 0001111 000000000000000000
4e5ba5b7
DB		 1564 label6 opcode label18
1565
1566 The branch calculation is: pc + (4*label24)
1567 where label24 is the concatenation of label6 and label18. */
1568
1569 /* Grab the instruction. */
1570 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
1571
1572 value -= input_section->output_section->vma + input_section->output_offset;
1573 value -= rello->r_offset;
1574 value += rello->r_addend;
1575
1576 value = value >> 2;
1577
1578 label6 = value & 0xfc0000;
1579 label6 = label6 << 7;
1580
1581 label18 = value & 0x3ffff;
1582
1583 insn = insn & 0x803c0000;
1584 insn = insn | label6;
1585 insn = insn | label18;
1586
1587 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
1588
1589 return bfd_reloc_ok;
1590}
1591
1592static bfd_reloc_status_type
b34976b6
AM		 1593elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation,
1594 contents, value)
4e5ba5b7
DB		 1595 struct bfd_link_info *info;
1596 bfd *input_bfd;
1597 asection *input_section;
1598 Elf_Internal_Rela *relocation;
1599 bfd_byte *contents;
1600 bfd_vma value;
1601{
1602 bfd_vma insn;
1603 bfd_vma gp;
1604 struct bfd_link_hash_entry *h;
1605
b34976b6 1606 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
4e5ba5b7
DB		 1607
1608 gp = (h->u.def.value
1609 + h->u.def.section->output_section->vma
1610 + h->u.def.section->output_offset);
1611
1612 value -= input_section->output_section->vma;
1613 value -= (gp - input_section->output_section->vma);
1614 value += relocation->r_addend;
1615 value = ((value >> 16) & 0xffff);
1616
1617 if ((long) value > 0xffff || (long) value < -0x10000)
1618 return bfd_reloc_overflow;
1619
1620 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
1621 insn = (insn & 0xffff0000) | value;
1622
1623 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
1624 return bfd_reloc_ok;
1625}
1626
1627static bfd_reloc_status_type
b34976b6
AM		 1628elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation,
1629 contents, value)
4e5ba5b7
DB		 1630 struct bfd_link_info *info;
1631 bfd *input_bfd;
1632 asection *input_section;
1633 Elf_Internal_Rela *relocation;
1634 bfd_byte *contents;
1635 bfd_vma value;
1636{
1637 bfd_vma insn;
1638 bfd_vma gp;
1639 struct bfd_link_hash_entry *h;
1640
b34976b6 1641 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
4e5ba5b7
DB		 1642
1643 gp = (h->u.def.value
1644 + h->u.def.section->output_section->vma
1645 + h->u.def.section->output_offset);
1646
1647 value -= input_section->output_section->vma;
1648 value -= (gp - input_section->output_section->vma);
1649 value += relocation->r_addend;
1650 value = value & 0xffff;
1651
1652 if ((long) value > 0xffff || (long) value < -0x10000)
1653 return bfd_reloc_overflow;
1654
1655 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
1656 insn = (insn & 0xffff0000) | value;
1657
1658 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
1659
1660 return bfd_reloc_ok;
1661}
1662
1663static reloc_howto_type *
1664frv_reloc_type_lookup (abfd, code)
b34976b6 1665 bfd *abfd ATTRIBUTE_UNUSED;
4e5ba5b7
DB		 1666 bfd_reloc_code_real_type code;
1667{
1668 switch (code)
1669 {
1670 default:
1671 break;
1672
1673 case BFD_RELOC_NONE:
1674 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
b34976b6 1675
4e5ba5b7 1676 case BFD_RELOC_32:
51532845
AO		 1677 if (elf_elfheader (abfd)->e_type == ET_EXEC
1678 || elf_elfheader (abfd)->e_type == ET_DYN)
1679 return &elf32_frv_rel_32_howto;
1680 /* Fall through. */
4e5ba5b7
DB		 1681 case BFD_RELOC_CTOR:
1682 return &elf32_frv_howto_table[ (int) R_FRV_32];
1683
1684 case BFD_RELOC_FRV_LABEL16:
1685 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
1686
1687 case BFD_RELOC_FRV_LABEL24:
1688 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
1689
1690 case BFD_RELOC_FRV_LO16:
1691 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
1692
1693 case BFD_RELOC_FRV_HI16:
1694 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
1695
1696 case BFD_RELOC_FRV_GPREL12:
1697 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
1698
1699 case BFD_RELOC_FRV_GPRELU12:
1700 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
1701
1702 case BFD_RELOC_FRV_GPREL32:
1703 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
1704
1705 case BFD_RELOC_FRV_GPRELHI:
1706 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
1707
1708 case BFD_RELOC_FRV_GPRELLO:
1709 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
1710
51532845
AO		 1711 case BFD_RELOC_FRV_GOT12:
1712 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
1713
1714 case BFD_RELOC_FRV_GOTHI:
1715 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
1716
1717 case BFD_RELOC_FRV_GOTLO:
1718 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
1719
1720 case BFD_RELOC_FRV_FUNCDESC:
1721 if (elf_elfheader (abfd)->e_type == ET_EXEC
1722 || elf_elfheader (abfd)->e_type == ET_DYN)
1723 return &elf32_frv_rel_funcdesc_howto;
1724 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
1725
1726 case BFD_RELOC_FRV_FUNCDESC_GOT12:
1727 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
1728
1729 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
1730 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
1731
1732 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
1733 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
1734
1735 case BFD_RELOC_FRV_FUNCDESC_VALUE:
1736 if (elf_elfheader (abfd)->e_type == ET_EXEC
1737 || elf_elfheader (abfd)->e_type == ET_DYN)
1738 return &elf32_frv_rel_funcdesc_value_howto;
1739 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
1740
1741 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
1742 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
1743
1744 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
1745 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
1746
1747 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
1748 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
1749
1750 case BFD_RELOC_FRV_GOTOFF12:
1751 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
1752
1753 case BFD_RELOC_FRV_GOTOFFHI:
1754 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
1755
1756 case BFD_RELOC_FRV_GOTOFFLO:
1757 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
1758
4e5ba5b7
DB		 1759 case BFD_RELOC_VTABLE_INHERIT:
1760 return &elf32_frv_vtinherit_howto;
1761
1762 case BFD_RELOC_VTABLE_ENTRY:
1763 return &elf32_frv_vtentry_howto;
1764 }
1765
1766 return NULL;
1767}
1768
1769/* Set the howto pointer for an FRV ELF reloc. */
1770
1771static void
1772frv_info_to_howto_rela (abfd, cache_ptr, dst)
b34976b6
AM		 1773 bfd *abfd ATTRIBUTE_UNUSED;
1774 arelent *cache_ptr;
1775 Elf_Internal_Rela *dst;
4e5ba5b7
DB		 1776{
1777 unsigned int r_type;
1778
1779 r_type = ELF32_R_TYPE (dst->r_info);
1780 switch (r_type)
1781 {
1782 case R_FRV_GNU_VTINHERIT:
1783 cache_ptr->howto = &elf32_frv_vtinherit_howto;
1784 break;
1785
1786 case R_FRV_GNU_VTENTRY:
1787 cache_ptr->howto = &elf32_frv_vtentry_howto;
1788 break;
1789
1790 default:
1791 cache_ptr->howto = & elf32_frv_howto_table [r_type];
1792 break;
1793 }
1794}
51532845
AO		 1795
1796/* Set the howto pointer for an FRV ELF REL reloc. */
1797static void
43850d5b
AO		 1798frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1799 arelent *cache_ptr, Elf_Internal_Rela *dst)
51532845
AO		 1800{
1801 unsigned int r_type;
1802
1803 r_type = ELF32_R_TYPE (dst->r_info);
1804 switch (r_type)
1805 {
1806 case R_FRV_32:
1807 cache_ptr->howto = &elf32_frv_rel_32_howto;
1808 break;
1809
1810 case R_FRV_FUNCDESC:
1811 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
1812 break;
1813
1814 case R_FRV_FUNCDESC_VALUE:
1815 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
1816 break;
1817
1818 default:
1819 cache_ptr->howto = NULL;
1820 break;
1821 }
1822}
4e5ba5b7
DB		 1823\f
1824/* Perform a single relocation. By default we use the standard BFD
1825 routines, but a few relocs, we have to do them ourselves. */
1826
1827static bfd_reloc_status_type
b34976b6
AM		 1828frv_final_link_relocate (howto, input_bfd, input_section, contents, rel,
1829 relocation)
1830 reloc_howto_type *howto;
1831 bfd *input_bfd;
1832 asection *input_section;
1833 bfd_byte *contents;
1834 Elf_Internal_Rela *rel;
1835 bfd_vma relocation;
4e5ba5b7
DB		 1836{
1837 return _bfd_final_link_relocate (howto, input_bfd, input_section,
1838 contents, rel->r_offset, relocation,
1839 rel->r_addend);
1840}
1841
1842\f
1843/* Relocate an FRV ELF section.
4e5ba5b7
DB		 1844
1845 The RELOCATE_SECTION function is called by the new ELF backend linker
1846 to handle the relocations for a section.
1847
1848 The relocs are always passed as Rela structures; if the section
1849 actually uses Rel structures, the r_addend field will always be
1850 zero.
1851
1852 This function is responsible for adjusting the section contents as
1049f94e 1853 necessary, and (if using Rela relocs and generating a relocatable
4e5ba5b7
DB		 1854 output file) adjusting the reloc addend as necessary.
1855
1856 This function does not have to worry about setting the reloc
1857 address or the reloc symbol index.
1858
1859 LOCAL_SYMS is a pointer to the swapped in local symbols.
1860
1861 LOCAL_SECTIONS is an array giving the section in the input file
1862 corresponding to the st_shndx field of each local symbol.
1863
1864 The global hash table entry for the global symbols can be found
1865 via elf_sym_hashes (input_bfd).
1866
1049f94e 1867 When generating relocatable output, this function must handle
4e5ba5b7
DB		 1868 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
1869 going to be the section symbol corresponding to the output
1870 section, which means that the addend must be adjusted
1871 accordingly. */
1872
b34976b6 1873static bfd_boolean
4e5ba5b7 1874elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
de2d743e 1875 contents, relocs, local_syms, local_sections)
b34976b6
AM		 1876 bfd *output_bfd ATTRIBUTE_UNUSED;
1877 struct bfd_link_info *info;
1878 bfd *input_bfd;
1879 asection *input_section;
1880 bfd_byte *contents;
1881 Elf_Internal_Rela *relocs;
1882 Elf_Internal_Sym *local_syms;
1883 asection **local_sections;
4e5ba5b7 1884{
b34976b6
AM		 1885 Elf_Internal_Shdr *symtab_hdr;
1886 struct elf_link_hash_entry **sym_hashes;
1887 Elf_Internal_Rela *rel;
1888 Elf_Internal_Rela *relend;
51532845
AO		 1889 unsigned isec_segment, got_segment, plt_segment, gprel_segment,
1890 check_segment[2];
1891 int silence_segment_error = !(info->shared || info->pie);
4e5ba5b7 1892
1049f94e 1893 if (info->relocatable)
b34976b6 1894 return TRUE;
de2d743e 1895
4e5ba5b7
DB		 1896 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
1897 sym_hashes = elf_sym_hashes (input_bfd);
1898 relend = relocs + input_section->reloc_count;
1899
43850d5b
AO		 1900 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
1901 input_section->output_section);
1902 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
1903 got_segment = _frvfdpic_osec_to_segment (output_bfd,
1904 frvfdpic_got_section (info)
1905 ->output_section);
51532845
AO		 1906 else
1907 got_segment = -1;
43850d5b
AO		 1908 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
1909 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
1910 frvfdpic_gotfixup_section (info)
1911 ->output_section);
51532845
AO		 1912 else
1913 gprel_segment = -1;
43850d5b
AO		 1914 if (IS_FDPIC (output_bfd) && elf_hash_table (info)->dynamic_sections_created)
1915 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
1916 frvfdpic_plt_section (info)
1917 ->output_section);
51532845
AO		 1918 else
1919 plt_segment = -1;
1920
4e5ba5b7
DB		 1921 for (rel = relocs; rel < relend; rel ++)
1922 {
b34976b6
AM		 1923 reloc_howto_type *howto;
1924 unsigned long r_symndx;
1925 Elf_Internal_Sym *sym;
1926 asection *sec;
1927 struct elf_link_hash_entry *h;
1928 bfd_vma relocation;
1929 bfd_reloc_status_type r;
1930 const char * name = NULL;
1931 int r_type;
51532845 1932 asection *osec;
43850d5b 1933 struct frvfdpic_relocs_info *picrel;
51532845
AO		 1934 bfd_vma orig_addend = rel->r_addend;
1935
1936 r_type = ELF32_R_TYPE (rel->r_info);
1937
1938 if ( r_type == R_FRV_GNU_VTINHERIT
1939 || r_type == R_FRV_GNU_VTENTRY)
1940 continue;
1941
1942 /* This is a final link. */
1943 r_symndx = ELF32_R_SYM (rel->r_info);
1944 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
1945 h = NULL;
1946 sym = NULL;
1947 sec = NULL;
1948
1949 if (r_symndx < symtab_hdr->sh_info)
1950 {
1951 sym = local_syms + r_symndx;
1952 osec = sec = local_sections [r_symndx];
1953 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1954
1955 name = bfd_elf_string_from_elf_section
1956 (input_bfd, symtab_hdr->sh_link, sym->st_name);
1957 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
1958 }
1959 else
1960 {
1961 h = sym_hashes [r_symndx - symtab_hdr->sh_info];
1962
1963 while (h->root.type == bfd_link_hash_indirect
1964 || h->root.type == bfd_link_hash_warning)
1965 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1966
1967 name = h->root.root.string;
1968
1969 if ((h->root.type == bfd_link_hash_defined
1970 || h->root.type == bfd_link_hash_defweak)
43850d5b 1971 && ! FRVFDPIC_SYM_LOCAL (info, h))
51532845
AO		 1972 {
1973 sec = NULL;
1974 relocation = 0;
1975 }
1976 else
1977 if (h->root.type == bfd_link_hash_defined
1978 || h->root.type == bfd_link_hash_defweak)
1979 {
1980 sec = h->root.u.def.section;
1981 relocation = (h->root.u.def.value
1982 + sec->output_section->vma
1983 + sec->output_offset);
1984 }
1985 else if (h->root.type == bfd_link_hash_undefweak)
1986 {
1987 relocation = 0;
1988 }
59c2e50f 1989 else if (info->unresolved_syms_in_objects == RM_IGNORE
51532845
AO		 1990 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1991 relocation = 0;
1992 else
1993 {
1994 if (! ((*info->callbacks->undefined_symbol)
1995 (info, h->root.root.string, input_bfd,
59c2e50f
L		 1996 input_section, rel->r_offset,
1997 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1998 || ELF_ST_VISIBILITY (h->other)))))
51532845
AO		 1999 return FALSE;
2000 relocation = 0;
2001 }
2002 osec = sec;
2003 }
2004
2005 switch (r_type)
2006 {
2007 case R_FRV_LABEL24:
2008 case R_FRV_32:
43850d5b
AO		 2009 if (! IS_FDPIC (output_bfd))
2010 goto non_fdpic;
2011
51532845
AO		 2012 case R_FRV_GOT12:
2013 case R_FRV_GOTHI:
2014 case R_FRV_GOTLO:
2015 case R_FRV_FUNCDESC_GOT12:
2016 case R_FRV_FUNCDESC_GOTHI:
2017 case R_FRV_FUNCDESC_GOTLO:
2018 case R_FRV_GOTOFF12:
2019 case R_FRV_GOTOFFHI:
2020 case R_FRV_GOTOFFLO:
2021 case R_FRV_FUNCDESC_GOTOFF12:
2022 case R_FRV_FUNCDESC_GOTOFFHI:
2023 case R_FRV_FUNCDESC_GOTOFFLO:
2024 case R_FRV_FUNCDESC:
2025 case R_FRV_FUNCDESC_VALUE:
2026 if (h != NULL)
43850d5b
AO		 2027 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2028 (info), input_bfd, h,
2029 orig_addend, INSERT);
51532845
AO		 2030 else
2031 /* In order to find the entry we created before, we must
2032 use the original addend, not the one that may have been
2033 modified by _bfd_elf_rela_local_sym(). */
43850d5b
AO		 2034 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2035 (info), input_bfd, r_symndx,
2036 orig_addend, INSERT);
51532845
AO		 2037 if (! picrel)
2038 return FALSE;
2039
43850d5b
AO		 2040 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2041 osec, sym,
2042 rel->r_addend))
51532845 2043 {
43850d5b 2044 (*_bfd_error_handler)
d003868e
AM		 2045 (_("%B: relocation at `%A+0x%x' references symbol `%s' with nonzero addend"),
2046 input_bfd, input_section, rel->r_offset, name);
51532845
AO		 2047 return FALSE;
2048
2049 }
2050
2051 break;
2052
2053 default:
43850d5b 2054 non_fdpic:
51532845 2055 picrel = NULL;
43850d5b 2056 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
51532845
AO		 2057 {
2058 info->callbacks->warning
2059 (info, _("relocation references symbol not defined in the module"),
2060 name, input_bfd, input_section, rel->r_offset);
2061 return FALSE;
2062 }
2063 break;
2064 }
2065
2066 switch (r_type)
2067 {
2068 case R_FRV_LABEL24:
2069 check_segment[0] = isec_segment;
43850d5b
AO		 2070 if (! IS_FDPIC (output_bfd))
2071 check_segment[1] = isec_segment;
2072 else if (picrel->plt)
51532845 2073 {
43850d5b
AO		 2074 relocation = frvfdpic_plt_section (info)->output_section->vma
2075 + frvfdpic_plt_section (info)->output_offset
51532845
AO		 2076 + picrel->plt_entry;
2077 check_segment[1] = plt_segment;
2078 }
2079 /* We don't want to warn on calls to undefined weak symbols,
2080 as calls to them must be protected by non-NULL tests
2081 anyway, and unprotected calls would invoke undefined
2082 behavior. */
2083 else if (picrel->symndx == -1
2084 && picrel->d.h->root.type == bfd_link_hash_undefweak)
2085 check_segment[1] = check_segment[0];
2086 else
2087 check_segment[1] = sec
43850d5b 2088 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
51532845
AO		 2089 : (unsigned)-1;
2090 break;
2091
2092 case R_FRV_GOT12:
2093 case R_FRV_GOTHI:
2094 case R_FRV_GOTLO:
2095 relocation = picrel->got_entry;
2096 check_segment[0] = check_segment[1] = got_segment;
2097 break;
f12123c0 2098
51532845
AO		 2099 case R_FRV_FUNCDESC_GOT12:
2100 case R_FRV_FUNCDESC_GOTHI:
2101 case R_FRV_FUNCDESC_GOTLO:
2102 relocation = picrel->fdgot_entry;
2103 check_segment[0] = check_segment[1] = got_segment;
2104 break;
f12123c0 2105
51532845
AO		 2106 case R_FRV_GOTOFFHI:
2107 case R_FRV_GOTOFF12:
2108 case R_FRV_GOTOFFLO:
43850d5b
AO		 2109 relocation -= frvfdpic_got_section (info)->output_section->vma
2110 + frvfdpic_got_section (info)->output_offset
2111 + frvfdpic_got_initial_offset (info);
51532845
AO		 2112 check_segment[0] = got_segment;
2113 check_segment[1] = sec
43850d5b 2114 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
51532845
AO		 2115 : (unsigned)-1;
2116 break;
2117
2118 case R_FRV_FUNCDESC_GOTOFF12:
2119 case R_FRV_FUNCDESC_GOTOFFHI:
2120 case R_FRV_FUNCDESC_GOTOFFLO:
2121 relocation = picrel->fd_entry;
2122 check_segment[0] = check_segment[1] = got_segment;
2123 break;
2124
2125 case R_FRV_FUNCDESC:
2126 {
2127 int dynindx;
2128 bfd_vma addend = rel->r_addend;
2129
072c8903 2130 if (! (h && h->root.type == bfd_link_hash_undefweak
43850d5b 2131 && FRVFDPIC_SYM_LOCAL (info, h)))
51532845 2132 {
072c8903
AO		 2133 /* If the symbol is dynamic and there may be dynamic
2134 symbol resolution because we are or are linked with a
2135 shared library, emit a FUNCDESC relocation such that
2136 the dynamic linker will allocate the function
2137 descriptor. If the symbol needs a non-local function
2138 descriptor but binds locally (e.g., its visibility is
2139 protected, emit a dynamic relocation decayed to
2140 section+offset. */
43850d5b
AO		 2141 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
2142 && FRVFDPIC_SYM_LOCAL (info, h)
072c8903 2143 && !(info->executable && !info->pie))
51532845 2144 {
072c8903
AO		 2145 dynindx = elf_section_data (h->root.u.def.section
2146 ->output_section)->dynindx;
2147 addend += h->root.u.def.section->output_offset
2148 + h->root.u.def.value;
2149 }
43850d5b 2150 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
072c8903
AO		 2151 {
2152 if (addend)
2153 {
2154 info->callbacks->warning
2155 (info, _("R_FRV_FUNCDESC references dynamic symbol with nonzero addend"),
2156 name, input_bfd, input_section, rel->r_offset);
2157 return FALSE;
2158 }
2159 dynindx = h->dynindx;
2160 }
2161 else
2162 {
2163 /* Otherwise, we know we have a private function
2164 descriptor, so reference it directly. */
2165 BFD_ASSERT (picrel->privfd);
2166 r_type = R_FRV_32;
43850d5b 2167 dynindx = elf_section_data (frvfdpic_got_section (info)
072c8903 2168 ->output_section)->dynindx;
43850d5b
AO		 2169 addend = frvfdpic_got_section (info)->output_offset
2170 + frvfdpic_got_initial_offset (info)
072c8903 2171 + picrel->fd_entry;
51532845 2172 }
51532845 2173
072c8903
AO		 2174 /* If there is room for dynamic symbol resolution, emit
2175 the dynamic relocation. However, if we're linking an
2176 executable at a fixed location, we won't have emitted a
2177 dynamic symbol entry for the got section, so idx will
2178 be zero, which means we can and should compute the
2179 address of the private descriptor ourselves. */
2180 if (info->executable && !info->pie
43850d5b 2181 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
072c8903 2182 {
43850d5b 2183 addend += frvfdpic_got_section (info)->output_section->vma;
072c8903
AO		 2184 if ((bfd_get_section_flags (output_bfd,
2185 input_section->output_section)
2186 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2187 {
43850d5b
AO		 2188 if (_frvfdpic_osec_readonly_p (output_bfd,
2189 input_section
2190 ->output_section))
072c8903
AO		 2191 {
2192 info->callbacks->warning
2193 (info,
2194 _("cannot emit fixups in read-only section"),
2195 name, input_bfd, input_section, rel->r_offset);
2196 return FALSE;
2197 }
43850d5b
AO		 2198 _frvfdpic_add_rofixup (output_bfd,
2199 frvfdpic_gotfixup_section
2200 (info),
2201 _bfd_elf_section_offset
2202 (output_bfd, info,
2203 input_section, rel->r_offset)
2204 + input_section
2205 ->output_section->vma
2206 + input_section->output_offset,
2207 picrel);
072c8903
AO		 2208 }
2209 }
2210 else if ((bfd_get_section_flags (output_bfd,
2211 input_section->output_section)
2212 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
51532845 2213 {
43850d5b
AO		 2214 if (_frvfdpic_osec_readonly_p (output_bfd,
2215 input_section
2216 ->output_section))
51532845
AO		 2217 {
2218 info->callbacks->warning
2219 (info,
072c8903 2220 _("cannot emit dynamic relocations in read-only section"),
51532845
AO		 2221 name, input_bfd, input_section, rel->r_offset);
2222 return FALSE;
2223 }
43850d5b
AO		 2224 _frvfdpic_add_dyn_reloc (output_bfd,
2225 frvfdpic_gotrel_section (info),
2226 _bfd_elf_section_offset
2227 (output_bfd, info,
2228 input_section, rel->r_offset)
2229 + input_section
2230 ->output_section->vma
2231 + input_section->output_offset,
2232 r_type, dynindx, addend, picrel);
51532845 2233 }
43850d5b
AO		 2234 else
2235 addend += frvfdpic_got_section (info)->output_section->vma;
51532845
AO		 2236 }
2237
2238 /* We want the addend in-place because dynamic
2239 relocations are REL. Setting relocation to it should
2240 arrange for it to be installed. */
2241 relocation = addend - rel->r_addend;
2242 }
2243 check_segment[0] = check_segment[1] = got_segment;
2244 break;
2245
2246 case R_FRV_32:
43850d5b
AO		 2247 if (! IS_FDPIC (output_bfd))
2248 {
2249 check_segment[0] = check_segment[1] = -1;
2250 break;
2251 }
2252 /* Fall through. */
51532845
AO		 2253 case R_FRV_FUNCDESC_VALUE:
2254 {
2255 int dynindx;
2256 bfd_vma addend = rel->r_addend;
2257
2258 /* If the symbol is dynamic but binds locally, use
2259 section+offset. */
43850d5b 2260 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
51532845
AO		 2261 {
2262 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
2263 {
2264 info->callbacks->warning
2265 (info, _("R_FRV_FUNCDESC_VALUE references dynamic symbol with nonzero addend"),
2266 name, input_bfd, input_section, rel->r_offset);
2267 return FALSE;
2268 }
2269 dynindx = h->dynindx;
2270 }
2271 else
2272 {
2273 if (h)
2274 addend += h->root.u.def.value;
2275 else
2276 addend += sym->st_value;
2277 if (osec)
2278 addend += osec->output_offset;
2279 if (osec && osec->output_section
2280 && ! bfd_is_abs_section (osec->output_section)
2281 && ! bfd_is_und_section (osec->output_section))
2282 dynindx = elf_section_data (osec->output_section)->dynindx;
2283 else
2284 dynindx = 0;
2285 }
2286
2287 /* If we're linking an executable at a fixed address, we
2288 can omit the dynamic relocation as long as the symbol
2289 is defined in the current link unit (which is implied
2290 by its output section not being NULL). */
2291 if (info->executable && !info->pie
43850d5b 2292 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
51532845
AO		 2293 {
2294 if (osec)
2295 addend += osec->output_section->vma;
43850d5b 2296 if (IS_FDPIC (input_bfd)
51532845
AO		 2297 && (bfd_get_section_flags (output_bfd,
2298 input_section->output_section)
2299 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2300 {
43850d5b
AO		 2301 if (_frvfdpic_osec_readonly_p (output_bfd,
2302 input_section
2303 ->output_section))
51532845
AO		 2304 {
2305 info->callbacks->warning
2306 (info,
2307 _("cannot emit fixups in read-only section"),
2308 name, input_bfd, input_section, rel->r_offset);
2309 return FALSE;
2310 }
2311 if (!h || h->root.type != bfd_link_hash_undefweak)
2312 {
43850d5b
AO		 2313 _frvfdpic_add_rofixup (output_bfd,
2314 frvfdpic_gotfixup_section
2315 (info),
2316 _bfd_elf_section_offset
2317 (output_bfd, info,
2318 input_section, rel->r_offset)
2319 + input_section
2320 ->output_section->vma
2321 + input_section->output_offset,
2322 picrel);
51532845 2323 if (r_type == R_FRV_FUNCDESC_VALUE)
43850d5b 2324 _frvfdpic_add_rofixup
51532845 2325 (output_bfd,
43850d5b 2326 frvfdpic_gotfixup_section (info),
51532845
AO		 2327 _bfd_elf_section_offset
2328 (output_bfd, info,
2329 input_section, rel->r_offset)
2330 + input_section->output_section->vma
3b712a1a 2331 + input_section->output_offset + 4, picrel);
51532845
AO		 2332 }
2333 }
2334 }
2335 else
2336 {
2337 if ((bfd_get_section_flags (output_bfd,
2338 input_section->output_section)
2339 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
2340 {
43850d5b
AO		 2341 if (_frvfdpic_osec_readonly_p (output_bfd,
2342 input_section
2343 ->output_section))
51532845
AO		 2344 {
2345 info->callbacks->warning
2346 (info,
2347 _("cannot emit dynamic relocations in read-only section"),
2348 name, input_bfd, input_section, rel->r_offset);
2349 return FALSE;
2350 }
43850d5b
AO		 2351 _frvfdpic_add_dyn_reloc (output_bfd,
2352 frvfdpic_gotrel_section (info),
2353 _bfd_elf_section_offset
2354 (output_bfd, info,
2355 input_section, rel->r_offset)
2356 + input_section
2357 ->output_section->vma
2358 + input_section->output_offset,
2359 r_type, dynindx, addend, picrel);
51532845 2360 }
43850d5b
AO		 2361 else if (osec)
2362 addend += osec->output_section->vma;
51532845
AO		 2363 /* We want the addend in-place because dynamic
2364 relocations are REL. Setting relocation to it
2365 should arrange for it to be installed. */
2366 relocation = addend - rel->r_addend;
2367 }
2368
2369 if (r_type == R_FRV_FUNCDESC_VALUE)
2370 {
2371 /* If we've omitted the dynamic relocation, just emit
2372 the fixed addresses of the symbol and of the local
2373 GOT base offset. */
2374 if (info->executable && !info->pie
43850d5b 2375 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
51532845 2376 bfd_put_32 (output_bfd,
43850d5b
AO		 2377 frvfdpic_got_section (info)->output_section->vma
2378 + frvfdpic_got_section (info)->output_offset
2379 + frvfdpic_got_initial_offset (info),
51532845
AO		 2380 contents + rel->r_offset + 4);
2381 else
2382 /* A function descriptor used for lazy or local
2383 resolving is initialized such that its high word
2384 contains the output section index in which the
2385 PLT entries are located, and the low word
2386 contains the offset of the lazy PLT entry entry
2387 point into that section. */
2388 bfd_put_32 (output_bfd,
43850d5b 2389 h && ! FRVFDPIC_SYM_LOCAL (info, h)
51532845 2390 ? 0
43850d5b
AO		 2391 : _frvfdpic_osec_to_segment (output_bfd,
2392 sec
2393 ->output_section),
51532845
AO		 2394 contents + rel->r_offset + 4);
2395 }
2396 }
2397 check_segment[0] = check_segment[1] = got_segment;
2398 break;
2399
2400 case R_FRV_GPREL12:
2401 case R_FRV_GPRELU12:
2402 case R_FRV_GPREL32:
2403 case R_FRV_GPRELHI:
2404 case R_FRV_GPRELLO:
2405 check_segment[0] = gprel_segment;
2406 check_segment[1] = sec
43850d5b 2407 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
51532845
AO		 2408 : (unsigned)-1;
2409 break;
2410
2411 default:
2412 check_segment[0] = isec_segment;
2413 check_segment[1] = sec
43850d5b 2414 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
51532845
AO		 2415 : (unsigned)-1;
2416 break;
2417 }
2418
43850d5b 2419 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
51532845 2420 {
43850d5b
AO		 2421#if 1 /* If you take this out, remove the #error from fdpic-static-6.d
2422 in the ld testsuite. */
51532845
AO		 2423 /* This helps catch problems in GCC while we can't do more
2424 than static linking. The idea is to test whether the
2425 input file basename is crt0.o only once. */
2426 if (silence_segment_error == 1)
2427 silence_segment_error =
2428 (strlen (input_bfd->filename) == 6
2429 && strcmp (input_bfd->filename, "crt0.o") == 0)
2430 || (strlen (input_bfd->filename) > 6
2431 && strcmp (input_bfd->filename
2432 + strlen (input_bfd->filename) - 7,
2433 "/crt0.o") == 0)
2434 ? -1 : 0;
2435#endif
2436 if (!silence_segment_error
2437 /* We don't want duplicate errors for undefined
2438 symbols. */
2439 && !(picrel && picrel->symndx == -1
2440 && picrel->d.h->root.type == bfd_link_hash_undefined))
2441 info->callbacks->warning
2442 (info,
2443 (info->shared || info->pie)
2444 ? _("relocations between different segments are not supported")
2445 : _("warning: relocation references a different segment"),
2446 name, input_bfd, input_section, rel->r_offset);
2447 if (!silence_segment_error && (info->shared || info->pie))
2448 return FALSE;
2449 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
2450 }
2451
2452 switch (r_type)
2453 {
2454 case R_FRV_GOTOFFHI:
2455 /* We need the addend to be applied before we shift the
2456 value right. */
2457 relocation += rel->r_addend;
2458 /* Fall through. */
2459 case R_FRV_GOTHI:
2460 case R_FRV_FUNCDESC_GOTHI:
2461 case R_FRV_FUNCDESC_GOTOFFHI:
2462 relocation >>= 16;
2463 /* Fall through. */
2464
2465 case R_FRV_GOTLO:
2466 case R_FRV_FUNCDESC_GOTLO:
2467 case R_FRV_GOTOFFLO:
2468 case R_FRV_FUNCDESC_GOTOFFLO:
2469 relocation &= 0xffff;
2470 break;
2471
2472 default:
2473 break;
2474 }
2475
2476 switch (r_type)
2477 {
2478 case R_FRV_LABEL24:
43850d5b 2479 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
51532845
AO		 2480 break;
2481 /* Fall through. */
f12123c0 2482
51532845
AO		 2483 /* When referencing a GOT entry, a function descriptor or a
2484 PLT, we don't want the addend to apply to the reference,
2485 but rather to the referenced symbol. The actual entry
2486 will have already been created taking the addend into
2487 account, so cancel it out here. */
2488 case R_FRV_GOT12:
2489 case R_FRV_GOTHI:
2490 case R_FRV_GOTLO:
2491 case R_FRV_FUNCDESC_GOT12:
2492 case R_FRV_FUNCDESC_GOTHI:
2493 case R_FRV_FUNCDESC_GOTLO:
2494 case R_FRV_FUNCDESC_GOTOFF12:
2495 case R_FRV_FUNCDESC_GOTOFFHI:
2496 case R_FRV_FUNCDESC_GOTOFFLO:
2497 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
2498 here, since we do want to apply the addend to the others.
2499 Note that we've applied the addend to GOTOFFHI before we
f12123c0 2500 shifted it right. */
51532845
AO		 2501 case R_FRV_GOTOFFHI:
2502 relocation -= rel->r_addend;
2503 break;
2504
2505 default:
2506 break;
2507 }
2508
2509 if (r_type == R_FRV_HI16)
2510 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
2511
2512 else if (r_type == R_FRV_LO16)
2513 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
2514
2515 else if (r_type == R_FRV_LABEL24)
2516 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
2517 contents, relocation);
2518
2519 else if (r_type == R_FRV_GPREL12)
2520 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
2521 contents, relocation);
2522
2523 else if (r_type == R_FRV_GPRELU12)
2524 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
2525 contents, relocation);
2526
2527 else if (r_type == R_FRV_GPRELLO)
2528 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
2529 contents, relocation);
2530
2531 else if (r_type == R_FRV_GPRELHI)
2532 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
2533 contents, relocation);
2534
2535 else
2536 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
2537 rel, relocation);
2538
2539 if (r != bfd_reloc_ok)
2540 {
2541 const char * msg = (const char *) NULL;
2542
2543 switch (r)
2544 {
2545 case bfd_reloc_overflow:
2546 r = info->callbacks->reloc_overflow
2547 (info, name, howto->name, (bfd_vma) 0,
2548 input_bfd, input_section, rel->r_offset);
2549 break;
2550
2551 case bfd_reloc_undefined:
2552 r = info->callbacks->undefined_symbol
2553 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
2554 break;
2555
2556 case bfd_reloc_outofrange:
2557 msg = _("internal error: out of range error");
2558 break;
2559
2560 case bfd_reloc_notsupported:
2561 msg = _("internal error: unsupported relocation error");
2562 break;
2563
2564 case bfd_reloc_dangerous:
2565 msg = _("internal error: dangerous relocation");
2566 break;
2567
2568 default:
2569 msg = _("internal error: unknown error");
2570 break;
2571 }
2572
2573 if (msg)
2574 r = info->callbacks->warning
2575 (info, msg, name, input_bfd, input_section, rel->r_offset);
2576
2577 if (! r)
2578 return FALSE;
2579 }
2580 }
2581
2582 return TRUE;
2583}
2584\f
2585/* Return the section that should be marked against GC for a given
2586 relocation. */
2587
2588static asection *
2589elf32_frv_gc_mark_hook (sec, info, rel, h, sym)
2590 asection *sec;
2591 struct bfd_link_info *info ATTRIBUTE_UNUSED;
2592 Elf_Internal_Rela *rel;
2593 struct elf_link_hash_entry *h;
2594 Elf_Internal_Sym *sym;
2595{
2596 if (h != NULL)
2597 {
2598 switch (ELF32_R_TYPE (rel->r_info))
2599 {
2600 case R_FRV_GNU_VTINHERIT:
2601 case R_FRV_GNU_VTENTRY:
2602 break;
2603
2604 default:
2605 switch (h->root.type)
2606 {
2607 default:
2608 break;
2609
2610 case bfd_link_hash_defined:
2611 case bfd_link_hash_defweak:
2612 return h->root.u.def.section;
2613
2614 case bfd_link_hash_common:
2615 return h->root.u.c.p->section;
2616 }
2617 }
2618 }
2619 else
2620 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
2621
2622 return NULL;
2623}
2624
2625/* Update the got entry reference counts for the section being removed. */
2626
2627static bfd_boolean
2628elf32_frv_gc_sweep_hook (abfd, info, sec, relocs)
2629 bfd *abfd ATTRIBUTE_UNUSED;
2630 struct bfd_link_info *info ATTRIBUTE_UNUSED;
2631 asection *sec ATTRIBUTE_UNUSED;
2632 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
2633{
2634 return TRUE;
2635}
2636
2637\f
2638/* Hook called by the linker routine which adds symbols from an object
2639 file. We use it to put .comm items in .scomm, and not .comm. */
2640
2641static bfd_boolean
2642elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
2643 bfd *abfd;
2644 struct bfd_link_info *info;
555cd476 2645 Elf_Internal_Sym *sym;
51532845
AO		 2646 const char **namep ATTRIBUTE_UNUSED;
2647 flagword *flagsp ATTRIBUTE_UNUSED;
2648 asection **secp;
2649 bfd_vma *valp;
2650{
2651 if (sym->st_shndx == SHN_COMMON
2652 && !info->relocatable
2653 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
2654 {
2655 /* Common symbols less than or equal to -G nn bytes are
2656 automatically put into .sbss. */
2657
2658 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
2659
2660 if (scomm == NULL)
2661 {
2662 scomm = bfd_make_section (abfd, ".scommon");
2663 if (scomm == NULL
2664 || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC
2665 | SEC_IS_COMMON
2666 | SEC_LINKER_CREATED)))
2667 return FALSE;
2668 }
2669
2670 *secp = scomm;
2671 *valp = sym->st_size;
2672 }
2673
2674 return TRUE;
2675}
43850d5b 2676
aee6f5b4
AO		 2677/* We need dynamic symbols for every section, since segments can
2678 relocate independently. */
2679static bfd_boolean
2680_frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2681 struct bfd_link_info *info
2682 ATTRIBUTE_UNUSED,
2683 asection *p ATTRIBUTE_UNUSED)
2684{
2685 switch (elf_section_data (p)->this_hdr.sh_type)
2686 {
2687 case SHT_PROGBITS:
2688 case SHT_NOBITS:
2689 /* If sh_type is yet undecided, assume it could be
2690 SHT_PROGBITS/SHT_NOBITS. */
2691 case SHT_NULL:
2692 return FALSE;
2693
2694 /* There shouldn't be section relative relocations
2695 against any other section. */
2696 default:
2697 return TRUE;
2698 }
2699}
2700
43850d5b 2701/* Create a .got section, as well as its additional info field. This
51532845
AO		 2702 is almost entirely copied from
2703 elflink.c:_bfd_elf_create_got_section(). */
2704
2705static bfd_boolean
2706_frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
2707{
2708 flagword flags;
2709 asection *s;
2710 struct elf_link_hash_entry *h;
2711 struct bfd_link_hash_entry *bh;
2712 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2713 int ptralign;
43850d5b 2714 int offset;
51532845
AO		 2715
2716 /* This function may be called more than once. */
2717 s = bfd_get_section_by_name (abfd, ".got");
2718 if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
2719 return TRUE;
2720
2721 /* Machine specific: although pointers are 32-bits wide, we want the
2722 GOT to be aligned to a 64-bit boundary, such that function
2723 descriptors in it can be accessed with 64-bit loads and
2724 stores. */
2725 ptralign = 3;
2726
2727 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2728 | SEC_LINKER_CREATED);
2729
2730 s = bfd_make_section (abfd, ".got");
2731 if (s == NULL
2732 || !bfd_set_section_flags (abfd, s, flags)
2733 || !bfd_set_section_alignment (abfd, s, ptralign))
2734 return FALSE;
2735
2736 if (bed->want_got_plt)
2737 {
2738 s = bfd_make_section (abfd, ".got.plt");
2739 if (s == NULL
2740 || !bfd_set_section_flags (abfd, s, flags)
2741 || !bfd_set_section_alignment (abfd, s, ptralign))
2742 return FALSE;
2743 }
2744
2745 if (bed->want_got_sym)
2746 {
2747 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
2748 (or .got.plt) section. We don't do this in the linker script
2749 because we don't want to define the symbol if we are not creating
2750 a global offset table. */
2751 bh = NULL;
2752 if (!(_bfd_generic_link_add_one_symbol
2753 (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
2754 bed->got_symbol_offset, (const char *) NULL, FALSE,
2755 bed->collect, &bh)))
2756 return FALSE;
2757 h = (struct elf_link_hash_entry *) bh;
f5385ebf 2758 h->def_regular = 1;
51532845
AO		 2759 h->type = STT_OBJECT;
2760
2761 /* Machine-specific: we want the symbol for executables as
2762 well. */
c152c796 2763 if (! bfd_elf_link_record_dynamic_symbol (info, h))
51532845
AO		 2764 return FALSE;
2765
2766 elf_hash_table (info)->hgot = h;
2767 }
2768
2769 /* The first bit of the global offset table is the header. */
eea6121a 2770 s->size += bed->got_header_size + bed->got_symbol_offset;
51532845
AO		 2771
2772 /* This is the machine-specific part. Create and initialize section
2773 data for the got. */
43850d5b
AO		 2774 if (IS_FDPIC (abfd))
2775 {
2776 frvfdpic_got_section (info) = s;
2777 frvfdpic_relocs_info (info) = htab_try_create (1, frvfdpic_relocs_info_hash,
2778 frvfdpic_relocs_info_eq,
2779 (htab_del) NULL);
2780 if (! frvfdpic_relocs_info (info))
2781 return FALSE;
51532845 2782
43850d5b
AO		 2783 s = bfd_make_section (abfd, ".rel.got");
2784 if (s == NULL
2785 || ! bfd_set_section_flags (abfd, s, (flags | SEC_READONLY))
2786 || ! bfd_set_section_alignment (abfd, s, 2))
2787 return FALSE;
51532845 2788
43850d5b 2789 frvfdpic_gotrel_section (info) = s;
51532845 2790
43850d5b
AO		 2791 /* Machine-specific. */
2792 s = bfd_make_section (abfd, ".rofixup");
2793 if (s == NULL
2794 || ! bfd_set_section_flags (abfd, s, (flags | SEC_READONLY))
2795 || ! bfd_set_section_alignment (abfd, s, 2))
2796 return FALSE;
51532845 2797
43850d5b
AO		 2798 frvfdpic_gotfixup_section (info) = s;
2799 offset = -2048;
2800 flags = BSF_GLOBAL;
2801 }
2802 else
2803 {
2804 offset = 2048;
2805 flags = BSF_GLOBAL | BSF_WEAK;
2806 }
51532845 2807
43850d5b
AO		 2808 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
2809 turns out that we're linking with a different linker script, the
2810 linker script will override it. */
51532845
AO		 2811 bh = NULL;
2812 if (!(_bfd_generic_link_add_one_symbol
43850d5b 2813 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
51532845
AO		 2814 bed->collect, &bh)))
2815 return FALSE;
2816 h = (struct elf_link_hash_entry *) bh;
f5385ebf 2817 h->def_regular = 1;
51532845
AO		 2818 h->type = STT_OBJECT;
2819
2820 /* Machine-specific: we want the symbol for executables as well. */
43850d5b 2821 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
51532845 2822 return FALSE;
43850d5b 2823
51532845
AO		 2824 return TRUE;
2825}
2826
2827/* Make sure the got and plt sections exist, and that our pointers in
2828 the link hash table point to them. */
2829
2830static bfd_boolean
43850d5b 2831elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
51532845
AO		 2832{
2833 /* This is mostly copied from
2834 elflink.c:_bfd_elf_create_dynamic_sections(). */
2835 flagword flags, pltflags;
2836 asection *s;
2837 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2838
2839 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2840 .rel[a].bss sections. */
2841
2842 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2843 | SEC_LINKER_CREATED);
2844
2845 pltflags = flags;
2846 pltflags |= SEC_CODE;
2847 if (bed->plt_not_loaded)
2848 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
2849 if (bed->plt_readonly)
2850 pltflags |= SEC_READONLY;
2851
2852 s = bfd_make_section (abfd, ".plt");
2853 if (s == NULL
2854 || ! bfd_set_section_flags (abfd, s, pltflags)
2855 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
2856 return FALSE;
2857 /* FRV-specific: remember it. */
43850d5b 2858 frvfdpic_plt_section (info) = s;
51532845
AO		 2859
2860 if (bed->want_plt_sym)
2861 {
2862 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2863 .plt section. */
2864 struct elf_link_hash_entry *h;
2865 struct bfd_link_hash_entry *bh = NULL;
2866
2867 if (! (_bfd_generic_link_add_one_symbol
2868 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL,
2869 FALSE, get_elf_backend_data (abfd)->collect, &bh)))
2870 return FALSE;
2871 h = (struct elf_link_hash_entry *) bh;
f5385ebf 2872 h->def_regular = 1;
51532845
AO		 2873 h->type = STT_OBJECT;
2874
2875 if (! info->executable
c152c796 2876 && ! bfd_elf_link_record_dynamic_symbol (info, h))
51532845
AO		 2877 return FALSE;
2878 }
2879
2880 /* FRV-specific: we want rel relocations for the plt. */
2881 s = bfd_make_section (abfd, ".rel.plt");
2882 if (s == NULL
2883 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
2884 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
2885 return FALSE;
2886 /* FRV-specific: remember it. */
43850d5b 2887 frvfdpic_pltrel_section (info) = s;
51532845
AO		 2888
2889 /* FRV-specific: we want to create the GOT in the FRV way. */
2890 if (! _frv_create_got_section (abfd, info))
2891 return FALSE;
2892
2893 /* FRV-specific: make sure we created everything we wanted. */
43850d5b
AO		 2894 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
2895 && frvfdpic_gotfixup_section (info)
2896 && frvfdpic_plt_section (info)
2897 && frvfdpic_pltrel_section (info));
51532845
AO		 2898
2899 if (bed->want_dynbss)
2900 {
2901 /* The .dynbss section is a place to put symbols which are defined
2902 by dynamic objects, are referenced by regular objects, and are
2903 not functions. We must allocate space for them in the process
2904 image and use a R_*_COPY reloc to tell the dynamic linker to
2905 initialize them at run time. The linker script puts the .dynbss
2906 section into the .bss section of the final image. */
2907 s = bfd_make_section (abfd, ".dynbss");
2908 if (s == NULL
2909 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC | SEC_LINKER_CREATED))
2910 return FALSE;
2911
2912 /* The .rel[a].bss section holds copy relocs. This section is not
2913 normally needed. We need to create it here, though, so that the
2914 linker will map it to an output section. We can't just create it
2915 only if we need it, because we will not know whether we need it
2916 until we have seen all the input files, and the first time the
2917 main linker code calls BFD after examining all the input files
2918 (size_dynamic_sections) the input sections have already been
2919 mapped to the output sections. If the section turns out not to
2920 be needed, we can discard it later. We will never need this
2921 section when generating a shared object, since they do not use
2922 copy relocs. */
2923 if (! info->shared)
2924 {
2925 s = bfd_make_section (abfd,
2926 (bed->default_use_rela_p
2927 ? ".rela.bss" : ".rel.bss"));
2928 if (s == NULL
2929 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
2930 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
2931 return FALSE;
2932 }
2933 }
2934
2935 return TRUE;
2936}
2937
2938/* The name of the dynamic interpreter. This is put in the .interp
2939 section. */
2940
2941#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2942
2943#define DEFAULT_STACK_SIZE 0x20000
2944
2945/* This structure is used to collect the number of entries present in
2946 each addressable range of the got. */
43850d5b 2947struct _frvfdpic_dynamic_got_info
51532845
AO		 2948{
2949 /* Several bits of information about the current link. */
2950 struct bfd_link_info *info;
2951 /* Total size needed for GOT entries within the 12-, 16- or 32-bit
2952 ranges. */
2953 bfd_vma got12, gotlos, gothilo;
2954 /* Total size needed for function descriptor entries within the 12-,
2955 16- or 32-bit ranges. */
2956 bfd_vma fd12, fdlos, fdhilo;
2957 /* Total size needed function descriptor entries referenced in PLT
2958 entries, that would be profitable to place in offsets close to
2959 the PIC register. */
2960 bfd_vma fdplt;
2961 /* Total size needed by lazy PLT entries. */
2962 bfd_vma lzplt;
2963 /* Number of relocations carried over from input object files. */
2964 unsigned long relocs;
2965 /* Number of fixups introduced by relocations in input object files. */
2966 unsigned long fixups;
2967};
2968
2969/* Compute the total GOT size required by each symbol in each range.
2970 Symbols may require up to 4 words in the GOT: an entry pointing to
2971 the symbol, an entry pointing to its function descriptor, and a
2972 private function descriptors taking two words. */
2973
2974static int
43850d5b 2975_frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
51532845 2976{
43850d5b
AO		 2977 struct frvfdpic_relocs_info *entry = *entryp;
2978 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
3b712a1a 2979 unsigned relocs = 0, fixups = 0;
51532845
AO		 2980
2981 /* Allocate space for a GOT entry pointing to the symbol. */
2982 if (entry->got12)
2983 dinfo->got12 += 4;
2984 else if (entry->gotlos)
2985 dinfo->gotlos += 4;
2986 else if (entry->gothilo)
2987 dinfo->gothilo += 4;
2988 else
2989 entry->relocs32--;
2990 entry->relocs32++;
2991
2992 /* Allocate space for a GOT entry pointing to the function
2993 descriptor. */
2994 if (entry->fdgot12)
2995 dinfo->got12 += 4;
2996 else if (entry->fdgotlos)
2997 dinfo->gotlos += 4;
2998 else if (entry->fdgothilo)
2999 dinfo->gothilo += 4;
3000 else
3001 entry->relocsfd--;
3002 entry->relocsfd++;
3003
3004 /* Decide whether we need a PLT entry, a function descriptor in the
3005 GOT, and a lazy PLT entry for this symbol. */
3006 entry->plt = entry->call
43850d5b 3007 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
51532845
AO		 3008 && elf_hash_table (dinfo->info)->dynamic_sections_created;
3009 entry->privfd = entry->plt
3010 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
3011 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
3012 && (entry->symndx != -1
43850d5b 3013 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
51532845 3014 entry->lazyplt = entry->privfd
43850d5b 3015 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
51532845
AO		 3016 && ! (dinfo->info->flags & DF_BIND_NOW)
3017 && elf_hash_table (dinfo->info)->dynamic_sections_created;
3018
3019 /* Allocate space for a function descriptor. */
3020 if (entry->fdgoff12)
3021 dinfo->fd12 += 8;
3022 else if (entry->fdgofflos)
3023 dinfo->fdlos += 8;
3024 else if (entry->privfd && entry->plt)
3025 dinfo->fdplt += 8;
3026 else if (entry->privfd)
3027 dinfo->fdhilo += 8;
3028 else
3029 entry->relocsfdv--;
3030 entry->relocsfdv++;
3031
3032 if (entry->lazyplt)
3033 dinfo->lzplt += 8;
3034
3035 if (!dinfo->info->executable || dinfo->info->pie)
3b712a1a 3036 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv;
51532845
AO		 3037 else
3038 {
43850d5b 3039 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
51532845
AO		 3040 {
3041 if (entry->symndx != -1
3b712a1a
AO		 3042 || entry->d.h->root.type != bfd_link_hash_undefweak)
3043 fixups += entry->relocs32 + 2 * entry->relocsfdv;
51532845
AO		 3044 }
3045 else
3b712a1a
AO		 3046 relocs += entry->relocs32 + entry->relocsfdv;
3047
43850d5b
AO		 3048 if (entry->symndx != -1
3049 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
51532845
AO		 3050 {
3051 if (entry->symndx != -1
3052 || entry->d.h->root.type != bfd_link_hash_undefweak)
3b712a1a 3053 fixups += entry->relocsfd;
51532845
AO		 3054 }
3055 else
3b712a1a 3056 relocs += entry->relocsfd;
51532845
AO		 3057 }
3058
3b712a1a
AO		 3059 entry->dynrelocs += relocs;
3060 entry->fixups += fixups;
3061 dinfo->relocs += relocs;
3062 dinfo->fixups += fixups;
3063
51532845
AO		 3064 return 1;
3065}
3066
3067/* This structure is used to assign offsets to got entries, function
3068 descriptors, plt entries and lazy plt entries. */
3069
43850d5b 3070struct _frvfdpic_dynamic_got_plt_info
51532845 3071{
43850d5b
AO		 3072 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
3073 struct _frvfdpic_dynamic_got_info g;
51532845
AO		 3074
3075 /* For each addressable range, we record a MAX (positive) and MIN
3076 (negative) value. CUR is used to assign got entries, and it's
3077 incremented from an initial positive value to MAX, then from MIN
3078 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
3079 assign function descriptors, and it's decreased from an initial
3080 non-positive value to MIN, then from MAX down to CUR (unless CUR
3081 wraps around first). All of MIN, MAX, CUR and FDCUR always point
3082 to even words. ODD, if non-zero, indicates an odd word to be
3083 used for the next got entry, otherwise CUR is used and
3084 incremented by a pair of words, wrapping around when it reaches
3085 MAX. FDCUR is decremented (and wrapped) before the next function
3086 descriptor is chosen. FDPLT indicates the number of remaining
3087 slots that can be used for function descriptors used only by PLT
3088 entries. */
43850d5b 3089 struct _frvfdpic_dynamic_got_alloc_data
51532845
AO		 3090 {
3091 bfd_signed_vma max, cur, odd, fdcur, min;
3092 bfd_vma fdplt;
3093 } got12, gotlos, gothilo;
3094};
3095
3096/* Determine the positive and negative ranges to be used by each
3097 offset range in the GOT. FDCUR and CUR, that must be aligned to a
3098 double-word boundary, are the minimum (negative) and maximum
3099 (positive) GOT offsets already used by previous ranges, except for
3100 an ODD entry that may have been left behind. GOT and FD indicate
3101 the size of GOT entries and function descriptors that must be
3102 placed within the range from -WRAP to WRAP. If there's room left,
3103 up to FDPLT bytes should be reserved for additional function
3104 descriptors. */
3105
3106inline static bfd_signed_vma
43850d5b
AO		 3107_frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
3108 bfd_signed_vma fdcur,
3109 bfd_signed_vma odd,
3110 bfd_signed_vma cur,
3111 bfd_vma got,
3112 bfd_vma fd,
3113 bfd_vma fdplt,
3114 bfd_vma wrap)
51532845
AO		 3115{
3116 bfd_signed_vma wrapmin = -wrap;
3117
3118 /* Start at the given initial points. */
3119 gad->fdcur = fdcur;
3120 gad->cur = cur;
3121
3122 /* If we had an incoming odd word and we have any got entries that
3123 are going to use it, consume it, otherwise leave gad->odd at
3124 zero. We might force gad->odd to zero and return the incoming
3125 odd such that it is used by the next range, but then GOT entries
3126 might appear to be out of order and we wouldn't be able to
3127 shorten the GOT by one word if it turns out to end with an
3128 unpaired GOT entry. */
3129 if (odd && got)
3130 {
3131 gad->odd = odd;
3132 got -= 4;
3133 odd = 0;
3134 }
3135 else
3136 gad->odd = 0;
3137
3138 /* If we're left with an unpaired GOT entry, compute its location
3139 such that we can return it. Otherwise, if got doesn't require an
3140 odd number of words here, either odd was already zero in the
3141 block above, or it was set to zero because got was non-zero, or
3142 got was already zero. In the latter case, we want the value of
3143 odd to carry over to the return statement, so we don't want to
3144 reset odd unless the condition below is true. */
3145 if (got & 4)
3146 {
3147 odd = cur + got;
3148 got += 4;
3149 }
f12123c0 3150
51532845
AO		 3151 /* Compute the tentative boundaries of this range. */
3152 gad->max = cur + got;
3153 gad->min = fdcur - fd;
3154 gad->fdplt = 0;
3155
3156 /* If function descriptors took too much space, wrap some of them
3157 around. */
3158 if (gad->min < wrapmin)
3159 {
3160 gad->max += wrapmin - gad->min;
3161 gad->min = wrapmin;
3162 }
3163 /* If there is space left and we have function descriptors
3164 referenced in PLT entries that could take advantage of shorter
3165 offsets, place them here. */
3166 else if (fdplt && gad->min > wrapmin)
3167 {
3168 bfd_vma fds;
3169 if ((bfd_vma) (gad->min - wrapmin) < fdplt)
3170 fds = gad->min - wrapmin;
3171 else
3172 fds = fdplt;
3173
3174 fdplt -= fds;
3175 gad->min -= fds;
3176 gad->fdplt += fds;
3177 }
3178
3179 /* If GOT entries took too much space, wrap some of them around.
3180 This may well cause gad->min to become lower than wrapmin. This
3181 will cause a relocation overflow later on, so we don't have to
3182 report it here . */
3183 if ((bfd_vma) gad->max > wrap)
3184 {
3185 gad->min -= gad->max - wrap;
3186 gad->max = wrap;
3187 }
3188 /* If there is more space left, try to place some more function
3189 descriptors for PLT entries. */
3190 else if (fdplt && (bfd_vma) gad->max < wrap)
3191 {
3192 bfd_vma fds;
3193 if ((bfd_vma) (wrap - gad->max) < fdplt)
3194 fds = wrap - gad->max;
3195 else
3196 fds = fdplt;
3197
3198 fdplt -= fds;
3199 gad->max += fds;
3200 gad->fdplt += fds;
3201 }
3202
3203 /* If odd was initially computed as an offset past the wrap point,
3204 wrap it around. */
3205 if (odd > gad->max)
3206 odd = gad->min + odd - gad->max;
3207
43850d5b 3208 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
51532845
AO		 3209 before returning, so do it here too. This guarantees that,
3210 should cur and fdcur meet at the wrap point, they'll both be
3211 equal to min. */
3212 if (gad->cur == gad->max)
3213 gad->cur = gad->min;
3214
3215 return odd;
3216}
3217
3218/* Compute the location of the next GOT entry, given the allocation
3219 data for a range. */
3220
3221inline static bfd_signed_vma
43850d5b 3222_frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
51532845
AO		 3223{
3224 bfd_signed_vma ret;
f12123c0 3225
51532845
AO		 3226 if (gad->odd)
3227 {
3228 /* If there was an odd word left behind, use it. */
3229 ret = gad->odd;
3230 gad->odd = 0;
3231 }
3232 else
3233 {
3234 /* Otherwise, use the word pointed to by cur, reserve the next
3235 as an odd word, and skip to the next pair of words, possibly
3236 wrapping around. */
3237 ret = gad->cur;
3238 gad->odd = gad->cur + 4;
3239 gad->cur += 8;
3240 if (gad->cur == gad->max)
3241 gad->cur = gad->min;
3242 }
3243
3244 return ret;
3245}
3246
3247/* Compute the location of the next function descriptor entry in the
3248 GOT, given the allocation data for a range. */
3249
3250inline static bfd_signed_vma
43850d5b 3251_frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
51532845
AO		 3252{
3253 /* If we're at the bottom, wrap around, and only then allocate the
3254 next pair of words. */
3255 if (gad->fdcur == gad->min)
3256 gad->fdcur = gad->max;
3257 return gad->fdcur -= 8;
3258}
3259
3260/* Assign GOT offsets for every GOT entry and function descriptor.
3261 Doing everything in a single pass is tricky. */
3262
3263static int
43850d5b 3264_frvfdpic_assign_got_entries (void **entryp, void *info_)
51532845 3265{
43850d5b
AO		 3266 struct frvfdpic_relocs_info *entry = *entryp;
3267 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
51532845
AO		 3268
3269 if (entry->got12)
43850d5b 3270 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
51532845 3271 else if (entry->gotlos)
43850d5b 3272 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
51532845 3273 else if (entry->gothilo)
43850d5b 3274 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
51532845
AO		 3275
3276 if (entry->fdgot12)
43850d5b 3277 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
51532845 3278 else if (entry->fdgotlos)
43850d5b 3279 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
51532845 3280 else if (entry->fdgothilo)
43850d5b 3281 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
51532845
AO		 3282
3283 if (entry->fdgoff12)
43850d5b 3284 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
51532845
AO		 3285 else if (entry->plt && dinfo->got12.fdplt)
3286 {
3287 dinfo->got12.fdplt -= 8;
43850d5b 3288 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
51532845
AO		 3289 }
3290 else if (entry->fdgofflos)
43850d5b 3291 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
51532845
AO		 3292 else if (entry->plt && dinfo->gotlos.fdplt)
3293 {
3294 dinfo->gotlos.fdplt -= 8;
43850d5b 3295 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
51532845
AO		 3296 }
3297 else if (entry->plt)
3298 {
3299 dinfo->gothilo.fdplt -= 8;
43850d5b 3300 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
51532845
AO		 3301 }
3302 else if (entry->privfd)
43850d5b 3303 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
f12123c0 3304
51532845
AO		 3305 return 1;
3306}
3307
3308/* Assign GOT offsets to private function descriptors used by PLT
3309 entries (or referenced by 32-bit offsets), as well as PLT entries
3310 and lazy PLT entries. */
3311
3312static int
43850d5b 3313_frvfdpic_assign_plt_entries (void **entryp, void *info_)
51532845 3314{
43850d5b
AO		 3315 struct frvfdpic_relocs_info *entry = *entryp;
3316 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
51532845
AO		 3317
3318 /* If this symbol requires a local function descriptor, allocate
3319 one. */
3320 if (entry->privfd && entry->fd_entry == 0)
3321 {
3322 if (dinfo->got12.fdplt)
3323 {
43850d5b 3324 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
51532845
AO		 3325 dinfo->got12.fdplt -= 8;
3326 }
3327 else if (dinfo->gotlos.fdplt)
3328 {
43850d5b 3329 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
51532845
AO		 3330 dinfo->gotlos.fdplt -= 8;
3331 }
3332 else
3333 {
f12123c0 3334 BFD_ASSERT (dinfo->gothilo.fdplt);
43850d5b 3335 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
51532845
AO		 3336 dinfo->gothilo.fdplt -= 8;
3337 }
3338 }
3339
3340 if (entry->plt)
3341 {
3342 int size;
3343
3344 /* We use the section's raw size to mark the location of the
3345 next PLT entry. */
eea6121a 3346 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
51532845
AO		 3347
3348 /* Figure out the length of this PLT entry based on the
3349 addressing mode we need to reach the function descriptor. */
3350 BFD_ASSERT (entry->fd_entry);
3351 if (entry->fd_entry >= -(1 << (12 - 1))
3352 && entry->fd_entry < (1 << (12 - 1)))
3353 size = 8;
3354 else if (entry->fd_entry >= -(1 << (16 - 1))
3355 && entry->fd_entry < (1 << (16 - 1)))
3356 size = 12;
3357 else
3358 size = 16;
3359
eea6121a 3360 frvfdpic_plt_section (dinfo->g.info)->size += size;
51532845
AO		 3361 }
3362
3363 if (entry->lazyplt)
3364 {
3365 entry->lzplt_entry = dinfo->g.lzplt;
3366 dinfo->g.lzplt += 8;
3367 /* If this entry is the one that gets the resolver stub, account
3368 for the additional instruction. */
43850d5b
AO		 3369 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
3370 == FRVFDPIC_LZPLT_RESOLV_LOC)
51532845
AO		 3371 dinfo->g.lzplt += 4;
3372 }
f12123c0 3373
51532845 3374 return 1;
f12123c0 3375}
51532845
AO		 3376
3377/* Follow indirect and warning hash entries so that each got entry
3378 points to the final symbol definition. P must point to a pointer
3379 to the hash table we're traversing. Since this traversal may
3380 modify the hash table, we set this pointer to NULL to indicate
3381 we've made a potentially-destructive change to the hash table, so
3382 the traversal must be restarted. */
3383static int
43850d5b 3384_frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
51532845 3385{
43850d5b 3386 struct frvfdpic_relocs_info *entry = *entryp;
51532845
AO		 3387 htab_t *htab = p;
3388
3389 if (entry->symndx == -1)
3390 {
3391 struct elf_link_hash_entry *h = entry->d.h;
43850d5b 3392 struct frvfdpic_relocs_info *oentry;
51532845
AO		 3393
3394 while (h->root.type == bfd_link_hash_indirect
3395 || h->root.type == bfd_link_hash_warning)
3396 h = (struct elf_link_hash_entry *)h->root.u.i.link;
3397
3398 if (entry->d.h == h)
3399 return 1;
3400
43850d5b
AO		 3401 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
3402 NO_INSERT);
3b712a1a
AO		 3403
3404 if (oentry)
3405 {
3406 /* Merge the two entries. */
43850d5b 3407 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
3b712a1a
AO		 3408 htab_clear_slot (*htab, entryp);
3409 return 1;
3410 }
3411
51532845
AO		 3412 entry->d.h = h;
3413
3414 /* If we can't find this entry with the new bfd hash, re-insert
3415 it, and get the traversal restarted. */
3416 if (! htab_find (*htab, entry))
3417 {
3418 htab_clear_slot (*htab, entryp);
3419 entryp = htab_find_slot (*htab, entry, INSERT);
3420 if (! *entryp)
3421 *entryp = entry;
3422 /* Abort the traversal, since the whole table may have
3423 moved, and leave it up to the parent to restart the
3424 process. */
3425 *(htab_t *)p = NULL;
3426 return 0;
3427 }
3428 }
3429
3430 return 1;
3431}
3432
3433/* Set the sizes of the dynamic sections. */
3434
3435static bfd_boolean
43850d5b
AO		 3436elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
3437 struct bfd_link_info *info)
51532845
AO		 3438{
3439 bfd *dynobj;
3440 asection *s;
43850d5b 3441 struct _frvfdpic_dynamic_got_plt_info gpinfo;
51532845
AO		 3442 bfd_signed_vma odd;
3443 bfd_vma limit;
3444
3445 dynobj = elf_hash_table (info)->dynobj;
3446 BFD_ASSERT (dynobj != NULL);
3447
3448 if (elf_hash_table (info)->dynamic_sections_created)
3449 {
3450 /* Set the contents of the .interp section to the interpreter. */
3451 if (info->executable)
3452 {
3453 s = bfd_get_section_by_name (dynobj, ".interp");
3454 BFD_ASSERT (s != NULL);
eea6121a 3455 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
51532845
AO		 3456 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
3457 }
3458 }
3459
3460 memset (&gpinfo, 0, sizeof (gpinfo));
3461 gpinfo.g.info = info;
3462
3463 for (;;)
3464 {
43850d5b 3465 htab_t relocs = frvfdpic_relocs_info (info);
51532845 3466
43850d5b 3467 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
51532845 3468
43850d5b 3469 if (relocs == frvfdpic_relocs_info (info))
51532845
AO		 3470 break;
3471 }
3472
43850d5b 3473 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
51532845
AO		 3474 &gpinfo.g);
3475
3476 odd = 12;
3477 /* Compute the total size taken by entries in the 12-bit and 16-bit
3478 ranges, to tell how many PLT function descriptors we can bring
3479 into the 12-bit range without causing the 16-bit range to
3480 overflow. */
3481 limit = odd + gpinfo.g.got12 + gpinfo.g.gotlos
3482 + gpinfo.g.fd12 + gpinfo.g.fdlos;
3483 if (limit < (bfd_vma)1 << 16)
3484 limit = ((bfd_vma)1 << 16) - limit;
3485 else
3486 limit = 0;
3487 if (gpinfo.g.fdplt < limit)
3488 limit = gpinfo.g.fdplt;
3489
3490 /* Determine the ranges of GOT offsets that we can use for each
3491 range of addressing modes. */
43850d5b
AO		 3492 odd = _frvfdpic_compute_got_alloc_data (&gpinfo.got12,
3493 0,
3494 odd,
3495 16,
3496 gpinfo.g.got12,
3497 gpinfo.g.fd12,
3498 limit,
3499 (bfd_vma)1 << (12-1));
3500 odd = _frvfdpic_compute_got_alloc_data (&gpinfo.gotlos,
3501 gpinfo.got12.min,
3502 odd,
3503 gpinfo.got12.max,
3504 gpinfo.g.gotlos,
3505 gpinfo.g.fdlos,
3506 gpinfo.g.fdplt - gpinfo.got12.fdplt,
3507 (bfd_vma)1 << (16-1));
3508 odd = _frvfdpic_compute_got_alloc_data (&gpinfo.gothilo,
3509 gpinfo.gotlos.min,
3510 odd,
3511 gpinfo.gotlos.max,
3512 gpinfo.g.gothilo,
3513 gpinfo.g.fdhilo,
3514 gpinfo.g.fdplt - gpinfo.got12.fdplt
3515 - gpinfo.gotlos.fdplt,
3516 (bfd_vma)1 << (32-1));
51532845
AO		 3517
3518 /* Now assign (most) GOT offsets. */
43850d5b
AO		 3519 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
3520 &gpinfo);
51532845 3521
eea6121a 3522 frvfdpic_got_section (info)->size = gpinfo.gothilo.max
43850d5b 3523 - gpinfo.gothilo.min
51532845
AO		 3524 /* If an odd word is the last word of the GOT, we don't need this
3525 word to be part of the GOT. */
3526 - (odd + 4 == gpinfo.gothilo.max ? 4 : 0);
eea6121a 3527 if (frvfdpic_got_section (info)->size == 0)
43850d5b 3528 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
eea6121a 3529 else if (frvfdpic_got_section (info)->size == 12
51532845
AO		 3530 && ! elf_hash_table (info)->dynamic_sections_created)
3531 {
43850d5b 3532 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
eea6121a 3533 frvfdpic_got_section (info)->size = 0;
51532845
AO		 3534 }
3535 else
3536 {
43850d5b
AO		 3537 frvfdpic_got_section (info)->contents =
3538 (bfd_byte *) bfd_zalloc (dynobj,
eea6121a 3539 frvfdpic_got_section (info)->size);
43850d5b 3540 if (frvfdpic_got_section (info)->contents == NULL)
51532845
AO		 3541 return FALSE;
3542 }
f12123c0 3543
51532845
AO		 3544 if (elf_hash_table (info)->dynamic_sections_created)
3545 /* Subtract the number of lzplt entries, since those will generate
3546 relocations in the pltrel section. */
eea6121a 3547 frvfdpic_gotrel_section (info)->size =
51532845
AO		 3548 (gpinfo.g.relocs - gpinfo.g.lzplt / 8)
3549 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
3550 else
3551 BFD_ASSERT (gpinfo.g.relocs == 0);
eea6121a 3552 if (frvfdpic_gotrel_section (info)->size == 0)
43850d5b 3553 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
51532845
AO		 3554 else
3555 {
43850d5b
AO		 3556 frvfdpic_gotrel_section (info)->contents =
3557 (bfd_byte *) bfd_zalloc (dynobj,
eea6121a 3558 frvfdpic_gotrel_section (info)->size);
43850d5b 3559 if (frvfdpic_gotrel_section (info)->contents == NULL)
51532845
AO		 3560 return FALSE;
3561 }
3562
eea6121a
AM		 3563 frvfdpic_gotfixup_section (info)->size = (gpinfo.g.fixups + 1) * 4;
3564 if (frvfdpic_gotfixup_section (info)->size == 0)
43850d5b 3565 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
51532845
AO		 3566 else
3567 {
43850d5b 3568 frvfdpic_gotfixup_section (info)->contents =
51532845 3569 (bfd_byte *) bfd_zalloc (dynobj,
eea6121a 3570 frvfdpic_gotfixup_section (info)->size);
43850d5b 3571 if (frvfdpic_gotfixup_section (info)->contents == NULL)
51532845
AO		 3572 return FALSE;
3573 }
f12123c0 3574
51532845
AO		 3575 if (elf_hash_table (info)->dynamic_sections_created)
3576 {
eea6121a 3577 frvfdpic_pltrel_section (info)->size =
51532845 3578 gpinfo.g.lzplt / 8 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
eea6121a 3579 if (frvfdpic_pltrel_section (info)->size == 0)
43850d5b 3580 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
51532845
AO		 3581 else
3582 {
43850d5b 3583 frvfdpic_pltrel_section (info)->contents =
51532845 3584 (bfd_byte *) bfd_zalloc (dynobj,
eea6121a 3585 frvfdpic_pltrel_section (info)->size);
43850d5b 3586 if (frvfdpic_pltrel_section (info)->contents == NULL)
51532845
AO		 3587 return FALSE;
3588 }
3589 }
f12123c0 3590
51532845
AO		 3591 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
3592 such that there's room for the additional instruction needed to
43850d5b
AO		 3593 call the resolver. Since _frvfdpic_assign_got_entries didn't
3594 account for them, our block size is 4 bytes smaller than the real
3595 block size. */
51532845
AO		 3596 if (elf_hash_table (info)->dynamic_sections_created)
3597 {
eea6121a 3598 frvfdpic_plt_section (info)->size = gpinfo.g.lzplt
43850d5b
AO		 3599 + ((gpinfo.g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
3600 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
51532845 3601 }
b34976b6 3602
43850d5b 3603 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
51532845
AO		 3604 actually assign lazy PLT entries addresses. */
3605 gpinfo.g.lzplt = 0;
b34976b6 3606
51532845
AO		 3607 /* Save information that we're going to need to generate GOT and PLT
3608 entries. */
43850d5b 3609 frvfdpic_got_initial_offset (info) = -gpinfo.gothilo.min;
b34976b6 3610
51532845
AO		 3611 if (get_elf_backend_data (output_bfd)->want_got_sym)
3612 elf_hash_table (info)->hgot->root.u.def.value
43850d5b 3613 += frvfdpic_got_initial_offset (info);
b34976b6 3614
51532845 3615 if (elf_hash_table (info)->dynamic_sections_created)
43850d5b 3616 frvfdpic_plt_initial_offset (info) =
eea6121a 3617 frvfdpic_plt_section (info)->size;
b34976b6 3618
43850d5b
AO		 3619 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
3620 &gpinfo);
51532845
AO		 3621
3622 /* Allocate the PLT section contents only after
43850d5b 3623 _frvfdpic_assign_plt_entries has a chance to add the size of the
51532845
AO		 3624 non-lazy PLT entries. */
3625 if (elf_hash_table (info)->dynamic_sections_created)
3626 {
eea6121a 3627 if (frvfdpic_plt_section (info)->size == 0)
43850d5b 3628 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
4e5ba5b7
DB		 3629 else
3630 {
43850d5b
AO		 3631 frvfdpic_plt_section (info)->contents =
3632 (bfd_byte *) bfd_zalloc (dynobj,
eea6121a 3633 frvfdpic_plt_section (info)->size);
43850d5b 3634 if (frvfdpic_plt_section (info)->contents == NULL)
51532845
AO		 3635 return FALSE;
3636 }
3637 }
b34976b6 3638
51532845
AO		 3639 if (elf_hash_table (info)->dynamic_sections_created)
3640 {
eea6121a 3641 if (frvfdpic_got_section (info)->size)
5a580b3a 3642 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
51532845
AO		 3643 return FALSE;
3644
eea6121a 3645 if (frvfdpic_pltrel_section (info)->size)
5a580b3a
AM		 3646 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3647 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
3648 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
51532845
AO		 3649 return FALSE;
3650
eea6121a 3651 if (frvfdpic_gotrel_section (info)->size)
5a580b3a
AM		 3652 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
3653 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
3654 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
3655 sizeof (Elf32_External_Rel)))
51532845
AO		 3656 return FALSE;
3657 }
4e5ba5b7 3658
51532845
AO		 3659 return TRUE;
3660}
b34976b6 3661
51532845 3662static bfd_boolean
43850d5b
AO		 3663elf32_frvfdpic_always_size_sections (bfd *output_bfd,
3664 struct bfd_link_info *info)
51532845 3665{
43850d5b 3666 if (!info->relocatable)
51532845
AO		 3667 {
3668 struct elf_link_hash_entry *h;
3669 asection *sec;
b34976b6 3670
51532845
AO		 3671 /* Force a PT_GNU_STACK segment to be created. */
3672 if (! elf_tdata (output_bfd)->stack_flags)
3673 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
4e5ba5b7 3674
51532845
AO		 3675 /* Define __stacksize if it's not defined yet. */
3676 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3677 FALSE, FALSE, FALSE);
3678 if (! h || h->root.type != bfd_link_hash_defined
3679 || h->type != STT_OBJECT
f5385ebf 3680 || !h->def_regular)
51532845 3681 {
ea01195e 3682 struct bfd_link_hash_entry *bh = NULL;
4e5ba5b7 3683
51532845
AO		 3684 if (!(_bfd_generic_link_add_one_symbol
3685 (info, output_bfd, "__stacksize",
3686 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
3687 (const char *) NULL, FALSE,
3688 get_elf_backend_data (output_bfd)->collect, &bh)))
3689 return FALSE;
4e5ba5b7 3690
51532845 3691 h = (struct elf_link_hash_entry *) bh;
f5385ebf 3692 h->def_regular = 1;
51532845
AO		 3693 h->type = STT_OBJECT;
3694 }
4e5ba5b7 3695
51532845
AO		 3696 /* Create a stack section, and set its alignment. */
3697 sec = bfd_make_section (output_bfd, ".stack");
4e5ba5b7 3698
51532845
AO		 3699 if (sec == NULL
3700 || ! bfd_set_section_alignment (output_bfd, sec, 3))
3701 return FALSE;
3702 }
4e5ba5b7 3703
51532845
AO		 3704 return TRUE;
3705}
4e5ba5b7 3706
51532845 3707static bfd_boolean
43850d5b
AO		 3708elf32_frvfdpic_modify_segment_map (bfd *output_bfd,
3709 struct bfd_link_info *info)
51532845 3710{
43850d5b 3711 struct elf_segment_map *m;
4e5ba5b7 3712
7e9f3bd6
AO		 3713 /* objcopy and strip preserve what's already there using
3714 elf32_frvfdpic_copy_private_bfd_data (). */
3715 if (! info)
3716 return TRUE;
3717
43850d5b
AO		 3718 for (m = elf_tdata (output_bfd)->segment_map; m != NULL; m = m->next)
3719 if (m->p_type == PT_GNU_STACK)
3720 break;
3721
3722 if (m)
3723 {
3724 asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
3725 struct elf_link_hash_entry *h;
51532845 3726
43850d5b 3727 if (sec)
4e5ba5b7 3728 {
43850d5b
AO		 3729 /* Obtain the pointer to the __stacksize symbol. */
3730 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3731 FALSE, FALSE, FALSE);
3732 while (h->root.type == bfd_link_hash_indirect
3733 || h->root.type == bfd_link_hash_warning)
3734 h = (struct elf_link_hash_entry *)h->root.u.i.link;
3735 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
4e5ba5b7 3736
43850d5b
AO		 3737 /* Set the section size from the symbol value. We
3738 intentionally ignore the symbol section. */
3739 if (h->root.type == bfd_link_hash_defined)
eea6121a 3740 sec->size = h->root.u.def.value;
43850d5b 3741 else
eea6121a 3742 sec->size = DEFAULT_STACK_SIZE;
51532845 3743
43850d5b
AO		 3744 /* Add the stack section to the PT_GNU_STACK segment,
3745 such that its size and alignment requirements make it
3746 to the segment. */
3747 m->sections[m->count] = sec;
3748 m->count++;
51532845
AO		 3749 }
3750 }
b34976b6 3751
51532845
AO		 3752 return TRUE;
3753}
b34976b6 3754
51532845 3755/* Fill in code and data in dynamic sections. */
4e5ba5b7 3756
51532845 3757static bfd_boolean
43850d5b
AO		 3758elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3759 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3760{
3761 /* Nothing to be done for non-FDPIC. */
3762 return TRUE;
3763}
3764
3765static bfd_boolean
3766elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
3767 struct bfd_link_info *info)
51532845
AO		 3768{
3769 bfd *dynobj;
3770 asection *sdyn;
4e5ba5b7 3771
51532845 3772 dynobj = elf_hash_table (info)->dynobj;
4e5ba5b7 3773
43850d5b 3774 if (frvfdpic_got_section (info))
51532845 3775 {
eea6121a 3776 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
43850d5b 3777 == (frvfdpic_gotrel_section (info)->reloc_count
51532845 3778 * sizeof (Elf32_External_Rel)));
4e5ba5b7 3779
43850d5b 3780 if (frvfdpic_gotfixup_section (info))
51532845 3781 {
43850d5b
AO		 3782 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
3783 bfd_vma got_value = hgot->root.u.def.value
3784 + hgot->root.u.def.section->output_section->vma
3785 + hgot->root.u.def.section->output_offset;
4e5ba5b7 3786
43850d5b
AO		 3787 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
3788 got_value, 0);
51532845 3789
eea6121a 3790 if (frvfdpic_gotfixup_section (info)->size
43850d5b 3791 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
51532845 3792 {
43850d5b
AO		 3793 (*_bfd_error_handler)
3794 ("LINKER BUG: .rofixup section size mismatch");
3795 return FALSE;
51532845 3796 }
4e5ba5b7
DB		 3797 }
3798 }
51532845
AO		 3799 if (elf_hash_table (info)->dynamic_sections_created)
3800 {
eea6121a 3801 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
43850d5b 3802 == (frvfdpic_pltrel_section (info)->reloc_count
51532845
AO		 3803 * sizeof (Elf32_External_Rel)));
3804 }
4e5ba5b7 3805
51532845 3806 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4e5ba5b7 3807
51532845 3808 if (elf_hash_table (info)->dynamic_sections_created)
4e5ba5b7 3809 {
51532845
AO		 3810 Elf32_External_Dyn * dyncon;
3811 Elf32_External_Dyn * dynconend;
3812
3813 BFD_ASSERT (sdyn != NULL);
3814
3815 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3816 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
51532845
AO		 3817
3818 for (; dyncon < dynconend; dyncon++)
4e5ba5b7 3819 {
51532845 3820 Elf_Internal_Dyn dyn;
4e5ba5b7 3821
51532845
AO		 3822 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3823
3824 switch (dyn.d_tag)
4e5ba5b7
DB		 3825 {
3826 default:
3827 break;
3828
51532845 3829 case DT_PLTGOT:
43850d5b
AO		 3830 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
3831 + frvfdpic_got_section (info)->output_offset
3832 + frvfdpic_got_initial_offset (info);
51532845
AO		 3833 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3834 break;
4e5ba5b7 3835
51532845 3836 case DT_JMPREL:
43850d5b
AO		 3837 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
3838 ->output_section->vma
3839 + frvfdpic_pltrel_section (info)->output_offset;
51532845
AO		 3840 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3841 break;
3842
3843 case DT_PLTRELSZ:
eea6121a 3844 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
51532845
AO		 3845 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3846 break;
4e5ba5b7
DB		 3847 }
3848 }
3849 }
4e5ba5b7 3850
51532845 3851 return TRUE;
4e5ba5b7
DB		 3852}
3853
51532845
AO		 3854/* Adjust a symbol defined by a dynamic object and referenced by a
3855 regular object. */
4e5ba5b7 3856
b34976b6 3857static bfd_boolean
43850d5b
AO		 3858elf32_frvfdpic_adjust_dynamic_symbol
3859(struct bfd_link_info *info ATTRIBUTE_UNUSED,
3860 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
4e5ba5b7 3861{
51532845
AO		 3862 bfd * dynobj;
3863
3864 dynobj = elf_hash_table (info)->dynobj;
3865
3866 /* Make sure we know what is going on here. */
3867 BFD_ASSERT (dynobj != NULL
f6e332e6 3868 && (h->u.weakdef != NULL
f5385ebf
AM		 3869 || (h->def_dynamic
3870 && h->ref_regular
3871 && !h->def_regular)));
51532845
AO		 3872
3873 /* If this is a weak symbol, and there is a real definition, the
3874 processor independent code will have arranged for us to see the
3875 real definition first, and we can just use the same value. */
f6e332e6 3876 if (h->u.weakdef != NULL)
51532845 3877 {
f6e332e6
AM		 3878 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3879 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3880 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3881 h->root.u.def.value = h->u.weakdef->root.u.def.value;
51532845
AO		 3882 }
3883
b34976b6 3884 return TRUE;
4e5ba5b7
DB		 3885}
3886
51532845 3887/* Perform any actions needed for dynamic symbols. */
4e5ba5b7 3888
b34976b6 3889static bfd_boolean
43850d5b
AO		 3890elf32_frvfdpic_finish_dynamic_symbol
3891(bfd *output_bfd ATTRIBUTE_UNUSED,
3892 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3893 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
3894 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
4e5ba5b7 3895{
b34976b6 3896 return TRUE;
4e5ba5b7 3897}
51532845 3898
ec3391e7
AO		 3899/* Decide whether to attempt to turn absptr or lsda encodings in
3900 shared libraries into pcrel within the given input section. */
3901
3902static bfd_boolean
43850d5b
AO		 3903frvfdpic_elf_use_relative_eh_frame
3904(bfd *input_bfd ATTRIBUTE_UNUSED,
3905 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3906 asection *eh_frame_section ATTRIBUTE_UNUSED)
ec3391e7
AO		 3907{
3908 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
43850d5b 3909 return FALSE;
ec3391e7
AO		 3910}
3911
3912/* Adjust the contents of an eh_frame_hdr section before they're output. */
3913
3914static bfd_byte
43850d5b
AO		 3915frvfdpic_elf_encode_eh_address (bfd *abfd,
3916 struct bfd_link_info *info,
3917 asection *osec, bfd_vma offset,
3918 asection *loc_sec, bfd_vma loc_offset,
3919 bfd_vma *encoded)
ec3391e7
AO		 3920{
3921 struct elf_link_hash_entry *h;
3922
ec3391e7
AO		 3923 h = elf_hash_table (info)->hgot;
3924 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
3925
43850d5b
AO		 3926 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
3927 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
ec3391e7
AO		 3928 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
3929 loc_sec, loc_offset, encoded);
3930
43850d5b
AO		 3931 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
3932 == (_frvfdpic_osec_to_segment
3933 (abfd, h->root.u.def.section->output_section)));
ec3391e7
AO		 3934
3935 *encoded = osec->vma + offset
3936 - (h->root.u.def.value
3937 + h->root.u.def.section->output_section->vma
3938 + h->root.u.def.section->output_offset);
3939
3940 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
3941}
3942
4e5ba5b7 3943/* Look through the relocs for a section during the first phase.
51532845
AO		 3944
3945 Besides handling virtual table relocs for gc, we have to deal with
3946 all sorts of PIC-related relocations. We describe below the
3947 general plan on how to handle such relocations, even though we only
3948 collect information at this point, storing them in hash tables for
3949 perusal of later passes.
3950
3951 32 relocations are propagated to the linker output when creating
3952 position-independent output. LO16 and HI16 relocations are not
3953 supposed to be encountered in this case.
3954
3955 LABEL16 should always be resolvable by the linker, since it's only
3956 used by branches.
3957
3958 LABEL24, on the other hand, is used by calls. If it turns out that
3959 the target of a call is a dynamic symbol, a PLT entry must be
3960 created for it, which triggers the creation of a private function
3961 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
3962
3963 GPREL relocations require the referenced symbol to be in the same
3964 segment as _gp, but this can only be checked later.
3965
3966 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
3967 exist. LABEL24 might as well, since it may require a PLT entry,
3968 that will require a got.
3969
3970 Non-FUNCDESC GOT relocations require a GOT entry to be created
3971 regardless of whether the symbol is dynamic. However, since a
3972 global symbol that turns out to not be exported may have the same
3973 address of a non-dynamic symbol, we don't assign GOT entries at
3974 this point, such that we can share them in this case. A relocation
3975 for the GOT entry always has to be created, be it to offset a
3976 private symbol by the section load address, be it to get the symbol
3977 resolved dynamically.
3978
3979 FUNCDESC GOT relocations require a GOT entry to be created, and
3980 handled as if a FUNCDESC relocation was applied to the GOT entry in
3981 an object file.
3982
3983 FUNCDESC relocations referencing a symbol that turns out to NOT be
3984 dynamic cause a private function descriptor to be created. The
3985 FUNCDESC relocation then decays to a 32 relocation that points at
3986 the private descriptor. If the symbol is dynamic, the FUNCDESC
3987 relocation is propagated to the linker output, such that the
3988 dynamic linker creates the canonical descriptor, pointing to the
3989 dynamically-resolved definition of the function.
3990
3991 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
3992 symbols that are assigned to the same segment as the GOT, but we
3993 can only check this later, after we know the complete set of
3994 symbols defined and/or exported.
3995
3996 FUNCDESC GOTOFF relocations require a function descriptor to be
3997 created and, unless lazy binding is disabled or the symbol is not
3998 dynamic, a lazy PLT entry. Since we can't tell at this point
3999 whether a symbol is going to be dynamic, we have to decide later
4000 whether to create a lazy PLT entry or bind the descriptor directly
4001 to the private function.
4002
4003 FUNCDESC_VALUE relocations are not supposed to be present in object
4004 files, but they may very well be simply propagated to the linker
4005 output, since they have no side effect.
4006
4007
4008 A function descriptor always requires a FUNCDESC_VALUE relocation.
4009 Whether it's in .plt.rel or not depends on whether lazy binding is
4010 enabled and on whether the referenced symbol is dynamic.
4011
4012 The existence of a lazy PLT requires the resolverStub lazy PLT
4013 entry to be present.
4014
4015
4016 As for assignment of GOT, PLT and lazy PLT entries, and private
4017 descriptors, we might do them all sequentially, but we can do
4018 better than that. For example, we can place GOT entries and
4019 private function descriptors referenced using 12-bit operands
4020 closer to the PIC register value, such that these relocations don't
4021 overflow. Those that are only referenced with LO16 relocations
4022 could come next, but we may as well place PLT-required function
4023 descriptors in the 12-bit range to make them shorter. Symbols
4024 referenced with LO16/HI16 may come next, but we may place
4025 additional function descriptors in the 16-bit range if we can
4026 reliably tell that we've already placed entries that are ever
4027 referenced with only LO16. PLT entries are therefore generated as
4028 small as possible, while not introducing relocation overflows in
4029 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
4030 generated before or after PLT entries, but not intermingled with
4031 them, such that we can have more lazy PLT entries in range for a
4032 branch to the resolverStub. The resolverStub should be emitted at
4033 the most distant location from the first lazy PLT entry such that
4034 it's still in range for a branch, or closer, if there isn't a need
4035 for so many lazy PLT entries. Additional lazy PLT entries may be
4036 emitted after the resolverStub, as long as branches are still in
4037 range. If the branch goes out of range, longer lazy PLT entries
4038 are emitted.
4039
4040 We could further optimize PLT and lazy PLT entries by giving them
4041 priority in assignment to closer-to-gr17 locations depending on the
4042 number of occurrences of references to them (assuming a function
4043 that's called more often is more important for performance, so its
4044 PLT entry should be faster), or taking hints from the compiler.
4045 Given infinite time and money... :-) */
b34976b6
AM		 4046
4047static bfd_boolean
4e5ba5b7
DB		 4048elf32_frv_check_relocs (abfd, info, sec, relocs)
4049 bfd *abfd;
4050 struct bfd_link_info *info;
4051 asection *sec;
4052 const Elf_Internal_Rela *relocs;
4053{
4054 Elf_Internal_Shdr *symtab_hdr;
4055 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4056 const Elf_Internal_Rela *rel;
4057 const Elf_Internal_Rela *rel_end;
51532845 4058 bfd *dynobj;
43850d5b 4059 struct frvfdpic_relocs_info *picrel;
b34976b6 4060
1049f94e 4061 if (info->relocatable)
b34976b6
AM		 4062 return TRUE;
4063
4e5ba5b7
DB		 4064 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4065 sym_hashes = elf_sym_hashes (abfd);
4066 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
4067 if (!elf_bad_symtab (abfd))
4068 sym_hashes_end -= symtab_hdr->sh_info;
b34976b6 4069
51532845 4070 dynobj = elf_hash_table (info)->dynobj;
4e5ba5b7
DB		 4071 rel_end = relocs + sec->reloc_count;
4072 for (rel = relocs; rel < rel_end; rel++)
4073 {
4074 struct elf_link_hash_entry *h;
4075 unsigned long r_symndx;
b34976b6 4076
4e5ba5b7
DB		 4077 r_symndx = ELF32_R_SYM (rel->r_info);
4078 if (r_symndx < symtab_hdr->sh_info)
4079 h = NULL;
4080 else
4081 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b34976b6 4082
51532845
AO		 4083 switch (ELF32_R_TYPE (rel->r_info))
4084 {
51532845
AO		 4085 case R_FRV_GOT12:
4086 case R_FRV_GOTHI:
4087 case R_FRV_GOTLO:
4088 case R_FRV_FUNCDESC_GOT12:
4089 case R_FRV_FUNCDESC_GOTHI:
4090 case R_FRV_FUNCDESC_GOTLO:
4091 case R_FRV_GOTOFF12:
4092 case R_FRV_GOTOFFHI:
4093 case R_FRV_GOTOFFLO:
4094 case R_FRV_FUNCDESC_GOTOFF12:
4095 case R_FRV_FUNCDESC_GOTOFFHI:
4096 case R_FRV_FUNCDESC_GOTOFFLO:
4097 case R_FRV_FUNCDESC:
4098 case R_FRV_FUNCDESC_VALUE:
43850d5b
AO		 4099 if (! IS_FDPIC (abfd))
4100 goto bad_reloc;
4101 /* Fall through. */
4102 case R_FRV_GPREL12:
4103 case R_FRV_GPRELU12:
4104 case R_FRV_GPRELHI:
4105 case R_FRV_GPRELLO:
4106 case R_FRV_LABEL24:
4107 case R_FRV_32:
51532845
AO		 4108 if (! dynobj)
4109 {
4110 elf_hash_table (info)->dynobj = dynobj = abfd;
4111 if (! _frv_create_got_section (abfd, info))
4112 return FALSE;
4113 }
43850d5b
AO		 4114 if (! IS_FDPIC (abfd))
4115 {
4116 picrel = NULL;
4117 break;
4118 }
51532845
AO		 4119 if (h != NULL)
4120 {
4121 if (h->dynindx == -1)
4122 switch (ELF_ST_VISIBILITY (h->other))
4123 {
4124 case STV_INTERNAL:
4125 case STV_HIDDEN:
4126 break;
4127 default:
c152c796 4128 bfd_elf_link_record_dynamic_symbol (info, h);
51532845
AO		 4129 break;
4130 }
4131 picrel
43850d5b
AO		 4132 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
4133 abfd, h,
4134 rel->r_addend, INSERT);
51532845
AO		 4135 }
4136 else
43850d5b
AO		 4137 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
4138 (info), abfd, r_symndx,
4139 rel->r_addend, INSERT);
51532845
AO		 4140 if (! picrel)
4141 return FALSE;
4142 break;
4143
4144 default:
4145 picrel = NULL;
4146 break;
4147 }
f12123c0 4148
4e5ba5b7
DB		 4149 switch (ELF32_R_TYPE (rel->r_info))
4150 {
51532845 4151 case R_FRV_LABEL24:
43850d5b
AO		 4152 if (IS_FDPIC (abfd))
4153 picrel->call = 1;
51532845 4154 break;
f12123c0 4155
51532845
AO		 4156 case R_FRV_FUNCDESC_VALUE:
4157 picrel->relocsfdv++;
4158 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
4159 picrel->relocs32--;
4160 /* Fall through. */
43850d5b 4161
51532845 4162 case R_FRV_32:
43850d5b
AO		 4163 if (! IS_FDPIC (abfd))
4164 break;
4165
51532845
AO		 4166 picrel->sym = 1;
4167 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
4168 picrel->relocs32++;
4169 break;
f12123c0 4170
51532845
AO		 4171 case R_FRV_GOT12:
4172 picrel->got12 = 1;
4173 break;
f12123c0 4174
51532845
AO		 4175 case R_FRV_GOTHI:
4176 case R_FRV_GOTLO:
4177 picrel->gothilo = 1;
4178 break;
4179
4180 case R_FRV_FUNCDESC_GOT12:
4181 picrel->fdgot12 = 1;
4182 break;
f12123c0 4183
51532845
AO		 4184 case R_FRV_FUNCDESC_GOTHI:
4185 case R_FRV_FUNCDESC_GOTLO:
4186 picrel->fdgothilo = 1;
4187 break;
f12123c0 4188
51532845
AO		 4189 case R_FRV_GOTOFF12:
4190 case R_FRV_GOTOFFHI:
4191 case R_FRV_GOTOFFLO:
4192 picrel->gotoff = 1;
4193 break;
f12123c0 4194
51532845
AO		 4195 case R_FRV_FUNCDESC_GOTOFF12:
4196 picrel->fdgoff12 = 1;
4197 break;
f12123c0 4198
51532845
AO		 4199 case R_FRV_FUNCDESC_GOTOFFHI:
4200 case R_FRV_FUNCDESC_GOTOFFLO:
4201 picrel->fdgoffhilo = 1;
4202 break;
f12123c0 4203
51532845
AO		 4204 case R_FRV_FUNCDESC:
4205 picrel->fd = 1;
4206 picrel->relocsfd++;
4207 break;
f12123c0 4208
4e5ba5b7
DB		 4209 /* This relocation describes the C++ object vtable hierarchy.
4210 Reconstruct it for later use during GC. */
4211 case R_FRV_GNU_VTINHERIT:
c152c796 4212 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 4213 return FALSE;
4e5ba5b7 4214 break;
b34976b6 4215
4e5ba5b7
DB		 4216 /* This relocation describes which C++ vtable entries are actually
4217 used. Record for later use during GC. */
4218 case R_FRV_GNU_VTENTRY:
c152c796 4219 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 4220 return FALSE;
4e5ba5b7 4221 break;
43850d5b
AO		 4222
4223 case R_FRV_LABEL16:
4224 case R_FRV_LO16:
4225 case R_FRV_HI16:
4226 case R_FRV_GPREL12:
4227 case R_FRV_GPRELU12:
4228 case R_FRV_GPREL32:
4229 case R_FRV_GPRELHI:
4230 case R_FRV_GPRELLO:
4231 break;
4232
4233 default:
4234 bad_reloc:
4235 (*_bfd_error_handler)
d003868e
AM		 4236 (_("%B: unsupported relocation type %i"),
4237 abfd, ELF32_R_TYPE (rel->r_info));
43850d5b 4238 return FALSE;
4e5ba5b7
DB		 4239 }
4240 }
b34976b6
AM		 4241
4242 return TRUE;
4e5ba5b7
DB		 4243}
4244
4245\f
4246/* Return the machine subcode from the ELF e_flags header. */
4247
4248static int
4249elf32_frv_machine (abfd)
4250 bfd *abfd;
4251{
4252 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
4253 {
4254 default: break;
9c8ee639 4255 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
4e5ba5b7 4256 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
676a64f4
RS		 4257 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
4258 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
4e5ba5b7
DB		 4259 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
4260 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
4261 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
4262 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
4263 }
4264
4265 return bfd_mach_frv;
4266}
4267
4268/* Set the right machine number for a FRV ELF file. */
4269
b34976b6 4270static bfd_boolean
4e5ba5b7
DB		 4271elf32_frv_object_p (abfd)
4272 bfd *abfd;
4273{
4274 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
43850d5b
AO		 4275 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
4276 == (IS_FDPIC (abfd)));
4e5ba5b7
DB		 4277}
4278\f
4279/* Function to set the ELF flag bits. */
4280
b34976b6 4281static bfd_boolean
4e5ba5b7
DB		 4282frv_elf_set_private_flags (abfd, flags)
4283 bfd *abfd;
4284 flagword flags;
4285{
4286 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM		 4287 elf_flags_init (abfd) = TRUE;
4288 return TRUE;
4e5ba5b7
DB		 4289}
4290
4291/* Copy backend specific data from one object module to another. */
4292
b34976b6 4293static bfd_boolean
4e5ba5b7
DB		 4294frv_elf_copy_private_bfd_data (ibfd, obfd)
4295 bfd *ibfd;
4296 bfd *obfd;
4297{
4298 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4299 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 4300 return TRUE;
4e5ba5b7
DB		 4301
4302 BFD_ASSERT (!elf_flags_init (obfd)
4303 || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
4304
4305 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
b34976b6
AM		 4306 elf_flags_init (obfd) = TRUE;
4307 return TRUE;
4e5ba5b7
DB		 4308}
4309
676a64f4
RS		 4310/* Return true if the architecture described by elf header flag
4311 EXTENSION is an extension of the architecture described by BASE. */
4312
4313static bfd_boolean
4314frv_elf_arch_extension_p (flagword base, flagword extension)
4315{
4316 if (base == extension)
4317 return TRUE;
4318
4319 /* CPU_GENERIC code can be merged with code for a specific
4320 architecture, in which case the result is marked as being
4321 for the specific architecture. Everything is therefore
4322 an extension of CPU_GENERIC. */
4323 if (base == EF_FRV_CPU_GENERIC)
4324 return TRUE;
4325
4326 if (extension == EF_FRV_CPU_FR450)
4327 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
4328 return TRUE;
4329
4330 if (extension == EF_FRV_CPU_FR405)
4331 if (base == EF_FRV_CPU_FR400)
4332 return TRUE;
4333
4334 return FALSE;
4335}
4336
7e9f3bd6
AO		 4337static bfd_boolean
4338elf32_frvfdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
4339{
4340 unsigned i;
4341
4342 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4343 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4344 return TRUE;
4345
4346 if (! frv_elf_copy_private_bfd_data (ibfd, obfd))
4347 return FALSE;
4348
4349 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
4350 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
4351 return TRUE;
4352
4353 /* Copy the stack size. */
4354 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
4355 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
4356 {
4357 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
4358
4359 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
4360 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
4361 {
4362 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
4363
4364 /* Rewrite the phdrs, since we're only called after they
4365 were first written. */
4366 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
4367 ->s->sizeof_ehdr, SEEK_SET) != 0
4368 || get_elf_backend_data (obfd)->s
4369 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
4370 elf_elfheader (obfd)->e_phnum) != 0)
4371 return FALSE;
4372 break;
4373 }
4374
4375 break;
4376 }
4377
4378 return TRUE;
4379}
4380
4e5ba5b7
DB		 4381/* Merge backend specific data from an object file to the output
4382 object file when linking. */
4383
b34976b6 4384static bfd_boolean
4e5ba5b7
DB		 4385frv_elf_merge_private_bfd_data (ibfd, obfd)
4386 bfd *ibfd;
4387 bfd *obfd;
4388{
4389 flagword old_flags, old_partial;
4390 flagword new_flags, new_partial;
b34976b6 4391 bfd_boolean error = FALSE;
4e5ba5b7
DB		 4392 char new_opt[80];
4393 char old_opt[80];
4394
4395 new_opt[0] = old_opt[0] = '\0';
4396 new_flags = elf_elfheader (ibfd)->e_flags;
4397 old_flags = elf_elfheader (obfd)->e_flags;
4398
51532845
AO		 4399 if (new_flags & EF_FRV_FDPIC)
4400 new_flags &= ~EF_FRV_PIC;
4401
4e5ba5b7
DB		 4402#ifdef DEBUG
4403 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
4404 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
4405 bfd_get_filename (ibfd));
4406#endif
4407
4408 if (!elf_flags_init (obfd)) /* First call, no flags set. */
4409 {
b34976b6 4410 elf_flags_init (obfd) = TRUE;
4e5ba5b7
DB		 4411 old_flags = new_flags;
4412 }
4413
4414 else if (new_flags == old_flags) /* Compatible flags are ok. */
4415 ;
4416
4417 else /* Possibly incompatible flags. */
4418 {
4419 /* Warn if different # of gprs are used. Note, 0 means nothing is
4420 said about the size of gprs. */
4421 new_partial = (new_flags & EF_FRV_GPR_MASK);
4422 old_partial = (old_flags & EF_FRV_GPR_MASK);
4423 if (new_partial == old_partial)
4424 ;
4425
4426 else if (new_partial == 0)
4427 ;
4428
4429 else if (old_partial == 0)
4430 old_flags |= new_partial;
4431
4432 else
4433 {
4434 switch (new_partial)
4435 {
4436 default: strcat (new_opt, " -mgpr-??"); break;
4437 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
4438 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
4439 }
4440
4441 switch (old_partial)
4442 {
4443 default: strcat (old_opt, " -mgpr-??"); break;
4444 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
4445 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
4446 }
4447 }
4448
4449 /* Warn if different # of fprs are used. Note, 0 means nothing is
4450 said about the size of fprs. */
4451 new_partial = (new_flags & EF_FRV_FPR_MASK);
4452 old_partial = (old_flags & EF_FRV_FPR_MASK);
4453 if (new_partial == old_partial)
4454 ;
4455
4456 else if (new_partial == 0)
4457 ;
4458
4459 else if (old_partial == 0)
4460 old_flags |= new_partial;
4461
4462 else
4463 {
4464 switch (new_partial)
4465 {
4466 default: strcat (new_opt, " -mfpr-?"); break;
4467 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
4468 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
4469 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
4470 }
4471
4472 switch (old_partial)
4473 {
4474 default: strcat (old_opt, " -mfpr-?"); break;
4475 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
4476 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
4477 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
4478 }
4479 }
4480
4481 /* Warn if different dword support was used. Note, 0 means nothing is
4482 said about the dword support. */
4483 new_partial = (new_flags & EF_FRV_DWORD_MASK);
4484 old_partial = (old_flags & EF_FRV_DWORD_MASK);
4485 if (new_partial == old_partial)
4486 ;
4487
4488 else if (new_partial == 0)
4489 ;
4490
4491 else if (old_partial == 0)
4492 old_flags |= new_partial;
4493
4494 else
4495 {
4496 switch (new_partial)
4497 {
4498 default: strcat (new_opt, " -mdword-?"); break;
4499 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
4500 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
4501 }
4502
4503 switch (old_partial)
4504 {
4505 default: strcat (old_opt, " -mdword-?"); break;
4506 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
4507 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
4508 }
4509 }
4510
4511 /* Or in flags that accumulate (ie, if one module uses it, mark that the
4512 feature is used. */
4513 old_flags |= new_flags & (EF_FRV_DOUBLE
4514 | EF_FRV_MEDIA
4515 | EF_FRV_MULADD
4516 | EF_FRV_NON_PIC_RELOCS);
4517
4518 /* If any module was compiled without -G0, clear the G0 bit. */
4519 old_flags = ((old_flags & ~ EF_FRV_G0)
4520 | (old_flags & new_flags & EF_FRV_G0));
4521
4522 /* If any module was compiled without -mnopack, clear the mnopack bit. */
4523 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
4524 | (old_flags & new_flags & EF_FRV_NOPACK));
4525
4526 /* We don't have to do anything if the pic flags are the same, or the new
4527 module(s) were compiled with -mlibrary-pic. */
4528 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
4529 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
4530 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
4531 ;
4532
4533 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
4534 flags if any from the new module. */
4535 else if ((old_partial & EF_FRV_LIBPIC) != 0)
4536 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
4537
4538 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
4539 else if (new_partial != 0 && old_partial != 0)
4540 old_flags |= new_partial;
4541
4542 /* One module was compiled for pic and the other was not, see if we have
4543 had any relocations that are not pic-safe. */
4544 else
4545 {
4546 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
4547 old_flags |= new_partial;
4548 else
4549 {
4550 old_flags &= ~ EF_FRV_PIC_FLAGS;
4551#ifndef FRV_NO_PIC_ERROR
b34976b6 4552 error = TRUE;
4e5ba5b7
DB		 4553 (*_bfd_error_handler)
4554 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
4555 bfd_get_filename (ibfd),
4556 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
4557#endif
4558 }
4559 }
4560
4561 /* Warn if different cpu is used (allow a specific cpu to override
4562 the generic cpu). */
4563 new_partial = (new_flags & EF_FRV_CPU_MASK);
4564 old_partial = (old_flags & EF_FRV_CPU_MASK);
676a64f4 4565 if (frv_elf_arch_extension_p (new_partial, old_partial))
4e5ba5b7
DB		 4566 ;
4567
676a64f4 4568 else if (frv_elf_arch_extension_p (old_partial, new_partial))
4e5ba5b7
DB		 4569 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
4570
4571 else
4572 {
4573 switch (new_partial)
4574 {
4575 default: strcat (new_opt, " -mcpu=?"); break;
4576 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
4577 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
9c8ee639 4578 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
4e5ba5b7 4579 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
676a64f4
RS		 4580 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
4581 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
4e5ba5b7
DB		 4582 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
4583 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
4584 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
4585 }
4586
4587 switch (old_partial)
4588 {
4589 default: strcat (old_opt, " -mcpu=?"); break;
4590 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
4591 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
9c8ee639 4592 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
4e5ba5b7 4593 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
676a64f4
RS		 4594 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
4595 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
4e5ba5b7
DB		 4596 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
4597 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
4598 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
4599 }
4600 }
b34976b6 4601
4e5ba5b7
DB		 4602 /* Print out any mismatches from above. */
4603 if (new_opt[0])
4604 {
b34976b6 4605 error = TRUE;
4e5ba5b7
DB		 4606 (*_bfd_error_handler)
4607 (_("%s: compiled with %s and linked with modules compiled with %s"),
4608 bfd_get_filename (ibfd), new_opt, old_opt);
4609 }
4610
4611 /* Warn about any other mismatches */
4612 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
4613 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
4614 if (new_partial != old_partial)
4615 {
4616 old_flags |= new_partial;
b34976b6 4617 error = TRUE;
4e5ba5b7
DB		 4618 (*_bfd_error_handler)
4619 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
4620 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
4621 }
4622 }
4623
4624 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
4625 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
4626 old_flags |= EF_FRV_NOPACK;
4627
4628 /* Update the old flags now with changes made above. */
4629 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
4630 elf_elfheader (obfd)->e_flags = old_flags;
4631 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
4632 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
4633
43850d5b
AO		 4634 if (((new_flags & EF_FRV_FDPIC) == 0)
4635 != (! IS_FDPIC (ibfd)))
4636 {
4637 error = TRUE;
4638 if (IS_FDPIC (obfd))
4639 (*_bfd_error_handler)
4640 (_("%s: cannot link non-fdpic object file into fdpic executable"),
4641 bfd_get_filename (ibfd));
4642 else
4643 (*_bfd_error_handler)
4644 (_("%s: cannot link fdpic object file into non-fdpic executable"),
4645 bfd_get_filename (ibfd));
4646 }
4647
4e5ba5b7
DB		 4648 if (error)
4649 bfd_set_error (bfd_error_bad_value);
4650
4651 return !error;
4652}
4653
4654\f
b34976b6 4655bfd_boolean
4e5ba5b7
DB		 4656frv_elf_print_private_bfd_data (abfd, ptr)
4657 bfd *abfd;
4658 PTR ptr;
4659{
4660 FILE *file = (FILE *) ptr;
4661 flagword flags;
4662
4663 BFD_ASSERT (abfd != NULL && ptr != NULL);
4664
4665 /* Print normal ELF private data. */
4666 _bfd_elf_print_private_bfd_data (abfd, ptr);
4667
4668 flags = elf_elfheader (abfd)->e_flags;
4669 fprintf (file, _("private flags = 0x%lx:"), (long)flags);
4670
4671 switch (flags & EF_FRV_CPU_MASK)
4672 {
4673 default: break;
4674 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
9c8ee639 4675 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
4e5ba5b7 4676 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
676a64f4
RS		 4677 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
4678 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
4e5ba5b7
DB		 4679 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
4680 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
4681 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
4682 }
4683
4684 switch (flags & EF_FRV_GPR_MASK)
4685 {
4686 default: break;
4687 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
4688 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
4689 }
4690
4691 switch (flags & EF_FRV_FPR_MASK)
4692 {
4693 default: break;
4694 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
4695 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
4696 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
4697 }
4698
4699 switch (flags & EF_FRV_DWORD_MASK)
4700 {
4701 default: break;
4702 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
4703 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
4704 }
4705
4706 if (flags & EF_FRV_DOUBLE)
4707 fprintf (file, " -mdouble");
4708
4709 if (flags & EF_FRV_MEDIA)
4710 fprintf (file, " -mmedia");
4711
4712 if (flags & EF_FRV_MULADD)
4713 fprintf (file, " -mmuladd");
4714
4715 if (flags & EF_FRV_PIC)
4716 fprintf (file, " -fpic");
4717
4718 if (flags & EF_FRV_BIGPIC)
4719 fprintf (file, " -fPIC");
4720
51532845
AO		 4721 if (flags & EF_FRV_LIBPIC)
4722 fprintf (file, " -mlibrary-pic");
4723
4724 if (flags & EF_FRV_FDPIC)
4725 fprintf (file, " -mfdpic");
f12123c0 4726
4e5ba5b7
DB		 4727 if (flags & EF_FRV_NON_PIC_RELOCS)
4728 fprintf (file, " non-pic relocations");
4729
4730 if (flags & EF_FRV_G0)
4731 fprintf (file, " -G0");
4732
4733 fputc ('\n', file);
b34976b6 4734 return TRUE;
4e5ba5b7
DB		 4735}
4736
4737\f
4738#define ELF_ARCH bfd_arch_frv
4739#define ELF_MACHINE_CODE EM_CYGNUS_FRV
4740#define ELF_MAXPAGESIZE 0x1000
4741
4742#define TARGET_BIG_SYM bfd_elf32_frv_vec
4743#define TARGET_BIG_NAME "elf32-frv"
4744
4e5ba5b7
DB		 4745#define elf_info_to_howto frv_info_to_howto_rela
4746#define elf_backend_relocate_section elf32_frv_relocate_section
4747#define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
4748#define elf_backend_gc_sweep_hook elf32_frv_gc_sweep_hook
4749#define elf_backend_check_relocs elf32_frv_check_relocs
4750#define elf_backend_object_p elf32_frv_object_p
4751#define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
4752
4753#define elf_backend_can_gc_sections 1
de2d743e 4754#define elf_backend_rela_normal 1
4e5ba5b7
DB		 4755
4756#define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
4757#define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
4758#define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data
4759#define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
4760#define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
4761
43850d5b
AO		 4762#define elf_backend_want_got_sym 1
4763#define elf_backend_got_header_size 0
4764#define elf_backend_want_got_plt 0
4765#define elf_backend_plt_readonly 1
4766#define elf_backend_want_plt_sym 0
4767#define elf_backend_plt_header_size 0
4768
4769#define elf_backend_finish_dynamic_sections \
4770 elf32_frv_finish_dynamic_sections
4771
4772#include "elf32-target.h"
4773
4774#undef ELF_MAXPAGESIZE
4775#define ELF_MAXPAGESIZE 0x4000
4776
4777#undef TARGET_BIG_SYM
4778#define TARGET_BIG_SYM bfd_elf32_frvfdpic_vec
4779#undef TARGET_BIG_NAME
4780#define TARGET_BIG_NAME "elf32-frvfdpic"
4781#undef elf32_bed
4782#define elf32_bed elf32_frvfdpic_bed
4783
4784#undef elf_info_to_howto_rel
4785#define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
4786
4787#undef bfd_elf32_bfd_link_hash_table_create
4788#define bfd_elf32_bfd_link_hash_table_create \
4789 frvfdpic_elf_link_hash_table_create
4790#undef elf_backend_always_size_sections
51532845 4791#define elf_backend_always_size_sections \
43850d5b
AO		 4792 elf32_frvfdpic_always_size_sections
4793#undef elf_backend_modify_segment_map
51532845 4794#define elf_backend_modify_segment_map \
43850d5b 4795 elf32_frvfdpic_modify_segment_map
7e9f3bd6
AO		 4796#undef bfd_elf32_bfd_copy_private_bfd_data
4797#define bfd_elf32_bfd_copy_private_bfd_data \
4798 elf32_frvfdpic_copy_private_bfd_data
51532845 4799
43850d5b 4800#undef elf_backend_create_dynamic_sections
51532845 4801#define elf_backend_create_dynamic_sections \
43850d5b
AO		 4802 elf32_frvfdpic_create_dynamic_sections
4803#undef elf_backend_adjust_dynamic_symbol
51532845 4804#define elf_backend_adjust_dynamic_symbol \
43850d5b
AO		 4805 elf32_frvfdpic_adjust_dynamic_symbol
4806#undef elf_backend_size_dynamic_sections
51532845 4807#define elf_backend_size_dynamic_sections \
43850d5b
AO		 4808 elf32_frvfdpic_size_dynamic_sections
4809#undef elf_backend_finish_dynamic_symbol
51532845 4810#define elf_backend_finish_dynamic_symbol \
43850d5b
AO		 4811 elf32_frvfdpic_finish_dynamic_symbol
4812#undef elf_backend_finish_dynamic_sections
51532845 4813#define elf_backend_finish_dynamic_sections \
43850d5b 4814 elf32_frvfdpic_finish_dynamic_sections
51532845 4815
43850d5b 4816#undef elf_backend_can_make_relative_eh_frame
ec3391e7 4817#define elf_backend_can_make_relative_eh_frame \
43850d5b
AO		 4818 frvfdpic_elf_use_relative_eh_frame
4819#undef elf_backend_can_make_lsda_relative_eh_frame
ec3391e7 4820#define elf_backend_can_make_lsda_relative_eh_frame \
43850d5b
AO		 4821 frvfdpic_elf_use_relative_eh_frame
4822#undef elf_backend_encode_eh_address
4823#define elf_backend_encode_eh_address \
4824 frvfdpic_elf_encode_eh_address
ec3391e7 4825
43850d5b 4826#undef elf_backend_may_use_rel_p
51532845 4827#define elf_backend_may_use_rel_p 1
43850d5b 4828#undef elf_backend_may_use_rela_p
51532845
AO		 4829#define elf_backend_may_use_rela_p 1
4830/* We use REL for dynamic relocations only. */
43850d5b 4831#undef elf_backend_default_use_rela_p
51532845
AO		 4832#define elf_backend_default_use_rela_p 1
4833
aee6f5b4
AO		 4834#undef elf_backend_omit_section_dynsym
4835#define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
4836
4e5ba5b7 4837#include "elf32-target.h"
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