projects / deliverable / binutils-gdb.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
* ld-cris/libdso-3.d, ld-cris/dso-3.s, ld-cris/noglob1.s,
[deliverable/binutils-gdb.git] / bfd / elf32-cris.c
CommitLineData
06c15ad7 1/* CRIS-specific support for 32-bit ELF.
e5094212 2 Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
06c15ad7
HPN		 3 Contributed by Axis Communications AB.
4 Written by Hans-Peter Nilsson, based on elf32-fr30.c
915e5146 5 PIC and shlib bits based primarily on elf32-m68k.c and elf32-i386.c.
06c15ad7
HPN		 6
7This file is part of BFD, the Binary File Descriptor library.
8
9This program is free software; you can redistribute it and/or modify
10it under the terms of the GNU General Public License as published by
11the Free Software Foundation; either version 2 of the License, or
12(at your option) any later version.
13
14This program is distributed in the hope that it will be useful,
15but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17GNU General Public License for more details.
18
19You should have received a copy of the GNU General Public License
20along with this program; if not, write to the Free Software
21Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22
23#include "bfd.h"
24#include "sysdep.h"
25#include "libbfd.h"
26#include "elf-bfd.h"
27#include "elf/cris.h"
28
29/* Forward declarations. */
30static reloc_howto_type * cris_reloc_type_lookup
31 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
32
a7c10850 33static void cris_info_to_howto_rela
06c15ad7
HPN		 34 PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
35
72209a1f
HPN		 36static boolean cris_elf_grok_prstatus
37 PARAMS ((bfd *abfd, Elf_Internal_Note *note));
38
39static boolean cris_elf_grok_psinfo
40 PARAMS ((bfd *abfd, Elf_Internal_Note *note));
41
a7c10850 42static boolean cris_elf_relocate_section
06c15ad7
HPN		 43 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
44 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
45
46static bfd_reloc_status_type cris_final_link_relocate
47 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
48 Elf_Internal_Rela *, bfd_vma));
49
50static boolean cris_elf_gc_sweep_hook
51 PARAMS ((bfd *, struct bfd_link_info *, asection *,
52 const Elf_Internal_Rela *));
53
54static asection * cris_elf_gc_mark_hook
1e2f5b6e 55 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
06c15ad7
HPN		 56 struct elf_link_hash_entry *, Elf_Internal_Sym *));
57
4da81684
HPN		 58static boolean cris_elf_object_p PARAMS ((bfd *));
59
60static void cris_elf_final_write_processing PARAMS ((bfd *, boolean));
61
62static boolean cris_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
63
64static boolean cris_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
65
915e5146 66struct elf_cris_link_hash_entry;
4d96d128
HPN		 67static boolean elf_cris_discard_excess_dso_dynamics
68 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
69static boolean elf_cris_discard_excess_program_dynamics
915e5146
HPN		 70 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
71static boolean elf_cris_adjust_gotplt_to_got
72 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
73static boolean elf_cris_try_fold_plt_to_got
74 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
75static struct bfd_hash_entry *elf_cris_link_hash_newfunc
76 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
77static struct bfd_link_hash_table *elf_cris_link_hash_table_create
78 PARAMS ((bfd *));
79static boolean elf_cris_adjust_dynamic_symbol
80 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
99c79b2e
AJ		 81static boolean cris_elf_check_relocs
82 PARAMS ((bfd *, struct bfd_link_info *, asection *,
83 const Elf_Internal_Rela *));
84
915e5146
HPN		 85static boolean elf_cris_size_dynamic_sections
86 PARAMS ((bfd *, struct bfd_link_info *));
87static boolean elf_cris_finish_dynamic_symbol
88 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
89 Elf_Internal_Sym *));
90static boolean elf_cris_finish_dynamic_sections
91 PARAMS ((bfd *, struct bfd_link_info *));
92static void elf_cris_hide_symbol
e5094212 93 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, boolean));
99e4ae17 94static enum elf_reloc_type_class elf_cris_reloc_type_class
f51e552e 95 PARAMS ((const Elf_Internal_Rela *));
915e5146 96
06c15ad7
HPN		 97static reloc_howto_type cris_elf_howto_table [] =
98{
99 /* This reloc does nothing. */
100 HOWTO (R_CRIS_NONE, /* type */
101 0, /* rightshift */
102 2, /* size (0 = byte, 1 = short, 2 = long) */
103 32, /* bitsize */
104 false, /* pc_relative */
105 0, /* bitpos */
106 complain_overflow_bitfield, /* complain_on_overflow */
107 bfd_elf_generic_reloc, /* special_function */
108 "R_CRIS_NONE", /* name */
109 false, /* partial_inplace */
110 0, /* src_mask */
111 0, /* dst_mask */
112 false), /* pcrel_offset */
113
114 /* An 8 bit absolute relocation. */
115 HOWTO (R_CRIS_8, /* type */
116 0, /* rightshift */
117 0, /* size (0 = byte, 1 = short, 2 = long) */
118 8, /* bitsize */
119 false, /* pc_relative */
120 0, /* bitpos */
121 complain_overflow_bitfield, /* complain_on_overflow */
122 bfd_elf_generic_reloc, /* special_function */
123 "R_CRIS_8", /* name */
124 false, /* partial_inplace */
125 0x0000, /* src_mask */
126 0x00ff, /* dst_mask */
127 false), /* pcrel_offset */
128
129 /* A 16 bit absolute relocation. */
130 HOWTO (R_CRIS_16, /* type */
131 0, /* rightshift */
132 1, /* size (0 = byte, 1 = short, 2 = long) */
133 16, /* bitsize */
134 false, /* pc_relative */
135 0, /* bitpos */
136 complain_overflow_bitfield, /* complain_on_overflow */
137 bfd_elf_generic_reloc, /* special_function */
138 "R_CRIS_16", /* name */
139 false, /* partial_inplace */
140 0x00000000, /* src_mask */
141 0x0000ffff, /* dst_mask */
142 false), /* pcrel_offset */
143
144 /* A 32 bit absolute relocation. */
145 HOWTO (R_CRIS_32, /* type */
146 0, /* rightshift */
147 2, /* size (0 = byte, 1 = short, 2 = long) */
148 32, /* bitsize */
149 false, /* pc_relative */
150 0, /* bitpos */
151 complain_overflow_bitfield, /* complain_on_overflow */
152 bfd_elf_generic_reloc, /* special_function */
153 "R_CRIS_32", /* name */
154 false, /* partial_inplace */
155 0x00000000, /* src_mask */
156 0xffffffff, /* dst_mask */
157 false), /* pcrel_offset */
158
915e5146 159 /* An 8 bit PC-relative relocation. */
06c15ad7
HPN		 160 HOWTO (R_CRIS_8_PCREL, /* type */
161 0, /* rightshift */
162 0, /* size (0 = byte, 1 = short, 2 = long) */
163 8, /* bitsize */
164 true, /* pc_relative */
165 0, /* bitpos */
166 complain_overflow_bitfield, /* complain_on_overflow */
167 bfd_elf_generic_reloc, /* special_function */
168 "R_CRIS_8_PCREL", /* name */
169 false, /* partial_inplace */
170 0x0000, /* src_mask */
171 0x00ff, /* dst_mask */
915e5146 172 true), /* pcrel_offset */
06c15ad7 173
915e5146 174 /* A 16 bit PC-relative relocation. */
06c15ad7
HPN		 175 HOWTO (R_CRIS_16_PCREL, /* type */
176 0, /* rightshift */
177 1, /* size (0 = byte, 1 = short, 2 = long) */
178 16, /* bitsize */
179 true, /* pc_relative */
180 0, /* bitpos */
181 complain_overflow_bitfield, /* complain_on_overflow */
182 bfd_elf_generic_reloc, /* special_function */
44aa49bb 183 "R_CRIS_16_PCREL", /* name */
06c15ad7
HPN		 184 false, /* partial_inplace */
185 0x00000000, /* src_mask */
186 0x0000ffff, /* dst_mask */
915e5146 187 true), /* pcrel_offset */
06c15ad7 188
915e5146 189 /* A 32 bit PC-relative relocation. */
06c15ad7
HPN		 190 HOWTO (R_CRIS_32_PCREL, /* type */
191 0, /* rightshift */
192 2, /* size (0 = byte, 1 = short, 2 = long) */
193 32, /* bitsize */
194 true, /* pc_relative */
195 0, /* bitpos */
196 complain_overflow_bitfield, /* complain_on_overflow */
197 bfd_elf_generic_reloc, /* special_function */
44aa49bb 198 "R_CRIS_32_PCREL", /* name */
06c15ad7
HPN		 199 false, /* partial_inplace */
200 0x00000000, /* src_mask */
201 0xffffffff, /* dst_mask */
915e5146 202 true), /* pcrel_offset */
06c15ad7 203
915e5146
HPN		 204 /* GNU extension to record C++ vtable hierarchy. */
205 HOWTO (R_CRIS_GNU_VTINHERIT, /* type */
06c15ad7
HPN		 206 0, /* rightshift */
207 2, /* size (0 = byte, 1 = short, 2 = long) */
208 0, /* bitsize */
209 false, /* pc_relative */
210 0, /* bitpos */
211 complain_overflow_dont, /* complain_on_overflow */
212 NULL, /* special_function */
213 "R_CRIS_GNU_VTINHERIT", /* name */
214 false, /* partial_inplace */
215 0, /* src_mask */
216 0, /* dst_mask */
217 false), /* pcrel_offset */
218
915e5146
HPN		 219 /* GNU extension to record C++ vtable member usage. */
220 HOWTO (R_CRIS_GNU_VTENTRY, /* type */
06c15ad7
HPN		 221 0, /* rightshift */
222 2, /* size (0 = byte, 1 = short, 2 = long) */
223 0, /* bitsize */
224 false, /* pc_relative */
225 0, /* bitpos */
226 complain_overflow_dont, /* complain_on_overflow */
227 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
228 "R_CRIS_GNU_VTENTRY", /* name */
229 false, /* partial_inplace */
230 0, /* src_mask */
231 0, /* dst_mask */
915e5146
HPN		 232 false), /* pcrel_offset */
233
234 /* This is used only by the dynamic linker. The symbol should exist
235 both in the object being run and in some shared library. The
236 dynamic linker copies the data addressed by the symbol from the
237 shared library into the object, because the object being
238 run has to have the data at some particular address. */
239 HOWTO (R_CRIS_COPY, /* type */
240 0, /* rightshift */
241 2, /* size (0 = byte, 1 = short, 2 = long) */
242 32, /* bitsize */
243 false, /* pc_relative */
244 0, /* bitpos */
245 complain_overflow_bitfield, /* complain_on_overflow */
246 bfd_elf_generic_reloc, /* special_function */
247 "R_CRIS_COPY", /* name */
248 false, /* partial_inplace */
249 0, /* src_mask */
250 0, /* dst_mask */
251 false), /* pcrel_offset */
252
253 /* Like R_CRIS_32, but used when setting global offset table entries. */
254 HOWTO (R_CRIS_GLOB_DAT, /* type */
255 0, /* rightshift */
256 2, /* size (0 = byte, 1 = short, 2 = long) */
257 32, /* bitsize */
258 false, /* pc_relative */
259 0, /* bitpos */
260 complain_overflow_bitfield, /* complain_on_overflow */
261 bfd_elf_generic_reloc, /* special_function */
262 "R_CRIS_GLOB_DAT", /* name */
263 false, /* partial_inplace */
264 0, /* src_mask */
265 0xffffffff, /* dst_mask */
266 false), /* pcrel_offset */
267
268 /* Marks a procedure linkage table entry for a symbol. */
269 HOWTO (R_CRIS_JUMP_SLOT, /* type */
270 0, /* rightshift */
271 2, /* size (0 = byte, 1 = short, 2 = long) */
272 32, /* bitsize */
273 false, /* pc_relative */
274 0, /* bitpos */
275 complain_overflow_bitfield, /* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_CRIS_JUMP_SLOT", /* name */
278 false, /* partial_inplace */
279 0, /* src_mask */
280 0, /* dst_mask */
281 false), /* pcrel_offset */
282
283 /* Used only by the dynamic linker. When the object is run, this
284 longword is set to the load address of the object, plus the
285 addend. */
286 HOWTO (R_CRIS_RELATIVE, /* type */
287 0, /* rightshift */
288 2, /* size (0 = byte, 1 = short, 2 = long) */
289 32, /* bitsize */
290 false, /* pc_relative */
291 0, /* bitpos */
292 complain_overflow_bitfield, /* complain_on_overflow */
293 bfd_elf_generic_reloc, /* special_function */
294 "R_CRIS_RELATIVE", /* name */
295 false, /* partial_inplace */
296 0, /* src_mask */
297 0xffffffff, /* dst_mask */
298 false), /* pcrel_offset */
299
300 /* Like R_CRIS_32, but referring to the GOT table entry for the symbol. */
301 HOWTO (R_CRIS_16_GOT, /* type */
302 0, /* rightshift */
303 1, /* size (0 = byte, 1 = short, 2 = long) */
304 16, /* bitsize */
305 false, /* pc_relative */
306 0, /* bitpos */
307 complain_overflow_bitfield, /* complain_on_overflow */
308 bfd_elf_generic_reloc, /* special_function */
309 "R_CRIS_16_GOT", /* name */
310 false, /* partial_inplace */
311 0, /* src_mask */
312 0xffff, /* dst_mask */
313 false), /* pcrel_offset */
314
315 HOWTO (R_CRIS_32_GOT, /* type */
316 0, /* rightshift */
317 2, /* size (0 = byte, 1 = short, 2 = long) */
318 32, /* bitsize */
319 false, /* pc_relative */
320 0, /* bitpos */
321 complain_overflow_bitfield, /* complain_on_overflow */
322 bfd_elf_generic_reloc, /* special_function */
323 "R_CRIS_32_GOT", /* name */
324 false, /* partial_inplace */
325 0, /* src_mask */
326 0xffffffff, /* dst_mask */
327 false), /* pcrel_offset */
328
329 /* Like R_CRIS_32_GOT, but referring to (and requesting a) PLT part of
330 the GOT table for the symbol. */
331 HOWTO (R_CRIS_16_GOTPLT, /* type */
332 0, /* rightshift */
333 1, /* size (0 = byte, 1 = short, 2 = long) */
334 16, /* bitsize */
335 false, /* pc_relative */
336 0, /* bitpos */
337 complain_overflow_bitfield, /* complain_on_overflow */
338 bfd_elf_generic_reloc, /* special_function */
339 "R_CRIS_16_GOTPLT", /* name */
340 false, /* partial_inplace */
341 0, /* src_mask */
342 0xffff, /* dst_mask */
343 false), /* pcrel_offset */
344
345 HOWTO (R_CRIS_32_GOTPLT, /* type */
346 0, /* rightshift */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
348 32, /* bitsize */
349 false, /* pc_relative */
350 0, /* bitpos */
351 complain_overflow_bitfield, /* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_CRIS_32_GOTPLT", /* name */
354 false, /* partial_inplace */
355 0, /* src_mask */
356 0xffffffff, /* dst_mask */
357 false), /* pcrel_offset */
358
359 /* A 32-bit offset from GOT to (local const) symbol: no GOT entry should
360 be necessary. */
361 HOWTO (R_CRIS_32_GOTREL, /* type */
362 0, /* rightshift */
363 2, /* size (0 = byte, 1 = short, 2 = long) */
364 32, /* bitsize */
365 false, /* pc_relative */
366 0, /* bitpos */
367 complain_overflow_bitfield, /* complain_on_overflow */
368 bfd_elf_generic_reloc, /* special_function */
369 "R_CRIS_32_GOTREL", /* name */
370 false, /* partial_inplace */
371 0, /* src_mask */
372 0xffffffff, /* dst_mask */
373 false), /* pcrel_offset */
374
375 /* A 32-bit offset from GOT to entry for this symbol in PLT and request
376 to create PLT entry for symbol. */
377 HOWTO (R_CRIS_32_PLT_GOTREL, /* type */
378 0, /* rightshift */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
380 32, /* bitsize */
381 false, /* pc_relative */
382 0, /* bitpos */
383 complain_overflow_bitfield, /* complain_on_overflow */
384 bfd_elf_generic_reloc, /* special_function */
385 "R_CRIS_32_PLT_GOTREL", /* name */
386 false, /* partial_inplace */
387 0, /* src_mask */
388 0xffffffff, /* dst_mask */
389 false), /* pcrel_offset */
390
391 /* A 32-bit offset from PC (location after the relocation) + addend to
392 entry for this symbol in PLT and request to create PLT entry for
393 symbol. */
394 HOWTO (R_CRIS_32_PLT_PCREL, /* type */
395 0, /* rightshift */
396 2, /* size (0 = byte, 1 = short, 2 = long) */
397 32, /* bitsize */
398 true, /* pc_relative */
399 0, /* bitpos */
400 complain_overflow_bitfield, /* complain_on_overflow */
401 bfd_elf_generic_reloc, /* special_function */
402 "R_CRIS_32_PLT_PCREL", /* name */
403 false, /* partial_inplace */
404 0, /* src_mask */
405 0xffffffff, /* dst_mask */
406 true) /* pcrel_offset */
06c15ad7
HPN		 407};
408\f
409/* Map BFD reloc types to CRIS ELF reloc types. */
410
411struct cris_reloc_map
412{
413 bfd_reloc_code_real_type bfd_reloc_val;
414 unsigned int cris_reloc_val;
415};
416
417static const struct cris_reloc_map cris_reloc_map [] =
418{
419 { BFD_RELOC_NONE, R_CRIS_NONE },
420 { BFD_RELOC_8, R_CRIS_8 },
421 { BFD_RELOC_16, R_CRIS_16 },
422 { BFD_RELOC_32, R_CRIS_32 },
423 { BFD_RELOC_8_PCREL, R_CRIS_8_PCREL },
424 { BFD_RELOC_16_PCREL, R_CRIS_16_PCREL },
425 { BFD_RELOC_32_PCREL, R_CRIS_32_PCREL },
426 { BFD_RELOC_VTABLE_INHERIT, R_CRIS_GNU_VTINHERIT },
915e5146
HPN		 427 { BFD_RELOC_VTABLE_ENTRY, R_CRIS_GNU_VTENTRY },
428 { BFD_RELOC_CRIS_COPY, R_CRIS_COPY },
429 { BFD_RELOC_CRIS_GLOB_DAT, R_CRIS_GLOB_DAT },
430 { BFD_RELOC_CRIS_JUMP_SLOT, R_CRIS_JUMP_SLOT },
431 { BFD_RELOC_CRIS_RELATIVE, R_CRIS_RELATIVE },
432 { BFD_RELOC_CRIS_16_GOT, R_CRIS_16_GOT },
433 { BFD_RELOC_CRIS_32_GOT, R_CRIS_32_GOT },
434 { BFD_RELOC_CRIS_16_GOTPLT, R_CRIS_16_GOTPLT },
435 { BFD_RELOC_CRIS_32_GOTPLT, R_CRIS_32_GOTPLT },
436 { BFD_RELOC_CRIS_32_GOTREL, R_CRIS_32_GOTREL },
437 { BFD_RELOC_CRIS_32_PLT_GOTREL, R_CRIS_32_PLT_GOTREL },
438 { BFD_RELOC_CRIS_32_PLT_PCREL, R_CRIS_32_PLT_PCREL }
06c15ad7
HPN		 439};
440
441static reloc_howto_type *
442cris_reloc_type_lookup (abfd, code)
443 bfd * abfd ATTRIBUTE_UNUSED;
444 bfd_reloc_code_real_type code;
445{
908d94bf 446 unsigned int i;
06c15ad7 447
908d94bf 448 for (i = 0; i < sizeof (cris_reloc_map) / sizeof (cris_reloc_map[0]); i++)
06c15ad7
HPN		 449 if (cris_reloc_map [i].bfd_reloc_val == code)
450 return & cris_elf_howto_table [cris_reloc_map[i].cris_reloc_val];
a7c10850 451
06c15ad7
HPN		 452 return NULL;
453}
454
455/* Set the howto pointer for an CRIS ELF reloc. */
456
457static void
458cris_info_to_howto_rela (abfd, cache_ptr, dst)
459 bfd * abfd ATTRIBUTE_UNUSED;
460 arelent * cache_ptr;
461 Elf32_Internal_Rela * dst;
462{
463 unsigned int r_type;
464
465 r_type = ELF32_R_TYPE (dst->r_info);
466 BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
467 cache_ptr->howto = & cris_elf_howto_table [r_type];
468}
469\f
72209a1f
HPN		 470/* Support for core dump NOTE sections. */
471
472static boolean
473cris_elf_grok_prstatus (abfd, note)
474 bfd *abfd;
475 Elf_Internal_Note *note;
476{
477 int offset;
478 size_t raw_size;
479
480 switch (note->descsz)
481 {
482 default:
483 return false;
484
bc0d28ee 485 case 214: /* Linux/CRIS */
72209a1f
HPN		 486 /* pr_cursig */
487 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
488
489 /* pr_pid */
490 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
491
492 /* pr_reg */
493 offset = 70;
bc0d28ee 494 raw_size = 140;
72209a1f
HPN		 495
496 break;
497 }
498
499 /* Make a ".reg/999" section. */
500 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
501 raw_size, note->descpos + offset);
502}
503
504static boolean
505cris_elf_grok_psinfo (abfd, note)
506 bfd *abfd;
507 Elf_Internal_Note *note;
508{
509 switch (note->descsz)
510 {
511 default:
512 return false;
513
514 case 124: /* Linux/CRIS elf_prpsinfo */
515 elf_tdata (abfd)->core_program
516 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
517 elf_tdata (abfd)->core_command
518 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
519 }
520
521 /* Note that for some reason, a spurious space is tacked
522 onto the end of the args in some (at least one anyway)
523 implementations, so strip it off if it exists. */
524
525 {
526 char *command = elf_tdata (abfd)->core_command;
527 int n = strlen (command);
528
529 if (0 < n && command[n - 1] == ' ')
530 command[n - 1] = '\0';
531 }
532
533 return true;
534}
535\f
915e5146
HPN		 536/* The name of the dynamic interpreter. This is put in the .interp
537 section. */
538
539#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
540
541/* The size in bytes of an entry in the procedure linkage table. */
542
543#define PLT_ENTRY_SIZE 20
544
545/* The first entry in an absolute procedure linkage table looks like this. */
546
547static const bfd_byte elf_cris_plt0_entry[PLT_ENTRY_SIZE] =
548{
549 0xfc, 0xe1,
cedb70c5 550 0x7e, 0x7e, /* push mof. */
915e5146
HPN		 551 0x7f, 0x0d, /* (dip [pc+]) */
552 0, 0, 0, 0, /* Replaced with address of .got + 4. */
553 0x30, 0x7a, /* move [...],mof */
554 0x7f, 0x0d, /* (dip [pc+]) */
555 0, 0, 0, 0, /* Replaced with address of .got + 8. */
556 0x30, 0x09, /* jump [...] */
557};
558
559/* Subsequent entries in an absolute procedure linkage table look like
560 this. */
561
562static const bfd_byte elf_cris_plt_entry[PLT_ENTRY_SIZE] =
563{
564 0x7f, 0x0d, /* (dip [pc+]) */
565 0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
566 0x30, 0x09, /* jump [...] */
567 0x3f, 0x7e, /* move [pc+],mof */
568 0, 0, 0, 0, /* Replaced with offset into relocation table. */
569 0x2f, 0xfe, /* add.d [pc+],pc */
570 0xec, 0xff,
571 0xff, 0xff /* Replaced with offset to start of .plt. */
572};
573
574/* The first entry in a PIC procedure linkage table looks like this. */
575
576static const bfd_byte elf_cris_pic_plt0_entry[PLT_ENTRY_SIZE] =
577{
578 0xfc, 0xe1, 0x7e, 0x7e, /* push mof */
579 0x04, 0x01, 0x30, 0x7a, /* move [r0+4],mof */
580 0x08, 0x01, 0x30, 0x09, /* jump [r0+8] */
581 0, 0, 0, 0, 0, 0, 0, 0, /* Pad out to 20 bytes. */
582};
583
584/* Subsequent entries in a PIC procedure linkage table look like this. */
585
586static const bfd_byte elf_cris_pic_plt_entry[PLT_ENTRY_SIZE] =
587{
588 0x6f, 0x0d, /* (bdap [pc+].d,r0) */
589 0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
590 0x30, 0x09, /* jump [...] */
591 0x3f, 0x7e, /* move [pc+],mof */
592 0, 0, 0, 0, /* Replaced with offset into relocation table. */
593 0x2f, 0xfe, /* add.d [pc+],pc */
594 0xec, 0xff, /* Replaced with offset to start of .plt. */
595 0xff, 0xff
596};
597\f
598/* We copy elf32-m68k.c and elf32-i386.c for the basic linker hash bits
599 (and most other PIC/shlib stuff). Check that we don't drift away
600 without reason.
601
602 The CRIS linker, like the m68k and i386 linkers (and probably the rest
603 too) needs to keep track of the number of relocs that it decides to
604 copy in check_relocs for each symbol. This is so that it can discard
605 PC relative relocs if it doesn't need them when linking with
606 -Bsymbolic. We store the information in a field extending the regular
607 ELF linker hash table. */
608
609/* This structure keeps track of the number of PC relative relocs we have
610 copied for a given symbol. */
611
612struct elf_cris_pcrel_relocs_copied
613{
614 /* Next section. */
615 struct elf_cris_pcrel_relocs_copied *next;
616 /* A section in dynobj. */
617 asection *section;
618 /* Number of relocs copied in this section. */
619 bfd_size_type count;
620};
621
622/* CRIS ELF linker hash entry. */
623
624struct elf_cris_link_hash_entry
625{
626 struct elf_link_hash_entry root;
627
628 /* Number of PC relative relocs copied for this symbol. */
629 struct elf_cris_pcrel_relocs_copied *pcrel_relocs_copied;
630
631 /* The GOTPLT references are CRIS-specific; the goal is to avoid having
632 both a general GOT and a PLT-specific GOT entry for the same symbol,
633 when it is referenced both as a function and as a function pointer.
634
635 Number of GOTPLT references for a function. */
636 bfd_signed_vma gotplt_refcount;
637
638 /* Actual GOTPLT index for this symbol, if applicable, or zero if not
639 (zero is never used as an index). FIXME: We should be able to fold
640 this with gotplt_refcount in a union, like the got and plt unions in
641 elf_link_hash_entry. */
642 bfd_size_type gotplt_offset;
643};
644
645/* CRIS ELF linker hash table. */
646
647struct elf_cris_link_hash_table
648{
649 struct elf_link_hash_table root;
650
651 /* We can't use the PLT offset and calculate to get the GOTPLT offset,
652 since we try and avoid creating GOTPLT:s when there's already a GOT.
653 Instead, we keep and update the next available index here. */
654 bfd_size_type next_gotplt_entry;
655};
656
657/* Traverse a CRIS ELF linker hash table. */
658
659#define elf_cris_link_hash_traverse(table, func, info) \
660 (elf_link_hash_traverse \
661 (&(table)->root, \
662 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
663 (info)))
664
665/* Get the CRIS ELF linker hash table from a link_info structure. */
666
667#define elf_cris_hash_table(p) \
668 ((struct elf_cris_link_hash_table *) (p)->hash)
669
670/* Create an entry in a CRIS ELF linker hash table. */
671
672static struct bfd_hash_entry *
673elf_cris_link_hash_newfunc (entry, table, string)
674 struct bfd_hash_entry *entry;
675 struct bfd_hash_table *table;
676 const char *string;
677{
678 struct elf_cris_link_hash_entry *ret =
679 (struct elf_cris_link_hash_entry *) entry;
680
681 /* Allocate the structure if it has not already been allocated by a
682 subclass. */
683 if (ret == (struct elf_cris_link_hash_entry *) NULL)
684 ret = ((struct elf_cris_link_hash_entry *)
685 bfd_hash_allocate (table,
686 sizeof (struct elf_cris_link_hash_entry)));
687 if (ret == (struct elf_cris_link_hash_entry *) NULL)
688 return (struct bfd_hash_entry *) ret;
689
690 /* Call the allocation method of the superclass. */
691 ret = ((struct elf_cris_link_hash_entry *)
692 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
693 table, string));
694 if (ret != (struct elf_cris_link_hash_entry *) NULL)
695 {
696 ret->pcrel_relocs_copied = NULL;
697 ret->gotplt_refcount = 0;
698 ret->gotplt_offset = 0;
699 }
700
701 return (struct bfd_hash_entry *) ret;
702}
703
704/* Create a CRIS ELF linker hash table. */
705
706static struct bfd_link_hash_table *
707elf_cris_link_hash_table_create (abfd)
708 bfd *abfd;
709{
710 struct elf_cris_link_hash_table *ret;
dc810e39 711 bfd_size_type amt = sizeof (struct elf_cris_link_hash_table);
915e5146 712
e2d34d7d 713 ret = ((struct elf_cris_link_hash_table *) bfd_malloc (amt));
915e5146
HPN		 714 if (ret == (struct elf_cris_link_hash_table *) NULL)
715 return NULL;
716
717 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
718 elf_cris_link_hash_newfunc))
719 {
e2d34d7d 720 free (ret);
915e5146
HPN		 721 return NULL;
722 }
723
724 /* Initialize to skip over the first three entries in the gotplt; they
725 are used for run-time symbol evaluation. */
726 ret->next_gotplt_entry = 12;
727
728 return &ret->root.root;
729}
730\f
06c15ad7 731/* Perform a single relocation. By default we use the standard BFD
915e5146 732 routines, with a few tweaks. */
06c15ad7
HPN		 733
734static bfd_reloc_status_type
735cris_final_link_relocate (howto, input_bfd, input_section, contents, rel,
736 relocation)
737 reloc_howto_type * howto;
738 bfd * input_bfd;
739 asection * input_section;
740 bfd_byte * contents;
741 Elf_Internal_Rela * rel;
742 bfd_vma relocation;
743{
915e5146
HPN		 744 bfd_reloc_status_type r;
745
746 /* PC-relative relocations are relative to the position *after*
747 the reloc. Note that for R_CRIS_8_PCREL the adjustment is
748 not a single byte, since PC must be 16-bit-aligned. */
749 switch (ELF32_R_TYPE (rel->r_info))
750 {
751 /* Check that the 16-bit GOT relocs are positive. */
752 case R_CRIS_16_GOTPLT:
753 case R_CRIS_16_GOT:
754 if ((bfd_signed_vma) relocation < 0)
755 return bfd_reloc_overflow;
756 break;
757
758 case R_CRIS_32_PLT_PCREL:
759 case R_CRIS_32_PCREL:
760 relocation -= 2;
761 /* Fall through. */
762 case R_CRIS_8_PCREL:
763 case R_CRIS_16_PCREL:
764 relocation -= 2;
765 break;
766
767 default:
768 break;
769 }
770
771 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
06c15ad7
HPN		 772 contents, rel->r_offset,
773 relocation, rel->r_addend);
774 return r;
775}
776\f
777/* Relocate an CRIS ELF section. See elf32-fr30.c, from where this was
778 copied, for further comments. */
779
780static boolean
781cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
782 contents, relocs, local_syms, local_sections)
783 bfd * output_bfd ATTRIBUTE_UNUSED;
784 struct bfd_link_info * info;
785 bfd * input_bfd;
786 asection * input_section;
787 bfd_byte * contents;
788 Elf_Internal_Rela * relocs;
789 Elf_Internal_Sym * local_syms;
790 asection ** local_sections;
791{
915e5146 792 bfd *dynobj;
06c15ad7
HPN		 793 Elf_Internal_Shdr * symtab_hdr;
794 struct elf_link_hash_entry ** sym_hashes;
915e5146
HPN		 795 bfd_vma *local_got_offsets;
796 asection *sgot;
797 asection *splt;
798 asection *sreloc;
06c15ad7
HPN		 799 Elf_Internal_Rela * rel;
800 Elf_Internal_Rela * relend;
801
915e5146
HPN		 802 dynobj = elf_hash_table (info)->dynobj;
803 local_got_offsets = elf_local_got_offsets (input_bfd);
06c15ad7
HPN		 804 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
805 sym_hashes = elf_sym_hashes (input_bfd);
806 relend = relocs + input_section->reloc_count;
807
808 /* It seems this can happen with erroneous or unsupported input (mixing
809 a.out and elf in an archive, for example.) */
810 if (sym_hashes == NULL)
811 return false;
812
915e5146
HPN		 813 sgot = NULL;
814 splt = NULL;
815 sreloc = NULL;
816
817 if (dynobj != NULL)
818 {
819 splt = bfd_get_section_by_name (dynobj, ".plt");
820 sgot = bfd_get_section_by_name (dynobj, ".got");
821 }
822
06c15ad7
HPN		 823 for (rel = relocs; rel < relend; rel ++)
824 {
825 reloc_howto_type * howto;
826 unsigned long r_symndx;
827 Elf_Internal_Sym * sym;
828 asection * sec;
829 struct elf_link_hash_entry * h;
830 bfd_vma relocation;
831 bfd_reloc_status_type r;
dc810e39 832 const char * symname = NULL;
06c15ad7 833 int r_type;
a7c10850 834
06c15ad7 835 r_type = ELF32_R_TYPE (rel->r_info);
a7c10850 836
06c15ad7
HPN		 837 if ( r_type == R_CRIS_GNU_VTINHERIT
838 || r_type == R_CRIS_GNU_VTENTRY)
839 continue;
a7c10850 840
06c15ad7
HPN		 841 r_symndx = ELF32_R_SYM (rel->r_info);
842
843 if (info->relocateable)
844 {
845 /* This is a relocateable link. We don't have to change
846 anything, unless the reloc is against a section symbol,
847 in which case we have to adjust according to where the
848 section symbol winds up in the output section. */
849 if (r_symndx < symtab_hdr->sh_info)
850 {
851 sym = local_syms + r_symndx;
a7c10850 852
06c15ad7
HPN		 853 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
854 {
855 sec = local_sections [r_symndx];
856 rel->r_addend += sec->output_offset + sym->st_value;
857 }
858 }
859
860 continue;
861 }
862
863 /* This is a final link. */
915e5146 864 howto = cris_elf_howto_table + r_type;
06c15ad7
HPN		 865 h = NULL;
866 sym = NULL;
867 sec = NULL;
a7c10850 868
06c15ad7
HPN		 869 if (r_symndx < symtab_hdr->sh_info)
870 {
871 sym = local_syms + r_symndx;
872 sec = local_sections [r_symndx];
f8df10f4 873 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
a7c10850 874
dc810e39
AM		 875 symname = (bfd_elf_string_from_elf_section
876 (input_bfd, symtab_hdr->sh_link, sym->st_name));
877 if (symname == NULL)
878 symname = bfd_section_name (input_bfd, sec);
06c15ad7
HPN		 879 }
880 else
881 {
882 h = sym_hashes [r_symndx - symtab_hdr->sh_info];
a7c10850 883
06c15ad7
HPN		 884 while (h->root.type == bfd_link_hash_indirect
885 || h->root.type == bfd_link_hash_warning)
886 h = (struct elf_link_hash_entry *) h->root.u.i.link;
887
dc810e39 888 symname = h->root.root.string;
a7c10850 889
06c15ad7
HPN		 890 if (h->root.type == bfd_link_hash_defined
891 || h->root.type == bfd_link_hash_defweak)
892 {
893 sec = h->root.u.def.section;
915e5146
HPN		 894
895 /* Perhaps we should detect the cases that
896 sec->output_section is expected to be NULL like i386 and
897 m68k, but apparently (and according to elfxx-ia64.c) all
898 valid cases are where the symbol is defined in a shared
899 object which we link dynamically against. This includes
900 PLT relocs for which we've created a PLT entry and other
901 relocs for which we're prepared to create dynamic
902 relocations.
903
904 For now, new situations cause us to just err when
905 sec->output_offset is NULL but the object with the symbol
906 is *not* dynamically linked against. Thus this will
907 automatically remind us so we can see if there are other
908 valid cases we need to revisit. */
909 if ((sec->output_section == NULL
910 && (sec->owner->flags & DYNAMIC) != 0)
911
912 /* Here follow the cases where the relocation value must
913 be zero (or when further handling is simplified when
914 zero). I can't claim to understand the various
915 conditions and they weren't described in the files
916 where I copied them from (elf32-m68k.c and
917 elf32-i386.c), but let's mention examples of where
918 they happen. FIXME: Perhaps define and use a
919 dynamic_symbol_p function like ia64.
920
921 - When creating a shared library, we can have an
922 ordinary relocation for a symbol defined in a shared
923 library (perhaps the one we create). We then make
924 the relocation value zero, as the value seen now will
925 be added into the relocation addend in this shared
926 library, but must be handled only at dynamic-link
927 time. FIXME: Not sure this example covers the
928 h->elf_link_hash_flags test, though it's there in
929 other targets. */
930 || (info->shared
931 && ((! info->symbolic && h->dynindx != -1)
932 || (h->elf_link_hash_flags
933 & ELF_LINK_HASH_DEF_REGULAR) == 0)
934 && (input_section->flags & SEC_ALLOC) != 0
935 && (r_type == R_CRIS_8
936 || r_type == R_CRIS_16
937 || r_type == R_CRIS_32
938 || r_type == R_CRIS_8_PCREL
939 || r_type == R_CRIS_16_PCREL
940 || r_type == R_CRIS_32_PCREL)))
941 relocation = 0;
942 else if (sec->output_section != NULL)
943 relocation = (h->root.u.def.value
944 + sec->output_section->vma
945 + sec->output_offset);
946 else
947 {
8f615d07
AM		 948 (*_bfd_error_handler)
949 (_("%s: unresolvable relocation %s against symbol `%s' from %s section"),
950 bfd_archive_filename (input_bfd),
951 cris_elf_howto_table[r_type].name,
952 symname,
953 bfd_get_section_name (input_bfd, input_section));
915e5146
HPN		 954 bfd_set_error (bfd_error_bad_value);
955 return false;
956 }
06c15ad7
HPN		 957 }
958 else if (h->root.type == bfd_link_hash_undefweak)
915e5146 959 relocation = 0;
06c15ad7 960 else if (info->shared
671bae9c 961 && (!info->symbolic || info->allow_shlib_undefined)
915e5146 962 && !info->no_undefined
06c15ad7
HPN		 963 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
964 relocation = 0;
965 else
966 {
915e5146 967 if (!(info->callbacks->undefined_symbol
dc810e39 968 (info, symname, input_bfd,
915e5146
HPN		 969 input_section, rel->r_offset,
970 (!info->shared || info->no_undefined
971 || ELF_ST_VISIBILITY (h->other)))))
06c15ad7 972 return false;
06c15ad7
HPN		 973 relocation = 0;
974 }
975 }
a7c10850 976
915e5146 977 switch (r_type)
06c15ad7 978 {
915e5146
HPN		 979 case R_CRIS_16_GOTPLT:
980 case R_CRIS_32_GOTPLT:
981 /* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT,
982 but we require a PLT, and the PLT handling will take care of
983 filling in the PLT-specific GOT entry. For the GOT offset,
984 calculate it as we do when filling it in for the .got.plt
985 section. If we don't have a PLT, punt to GOT handling. */
986 if (h != NULL
987 && ((struct elf_cris_link_hash_entry *) h)->gotplt_offset != 0)
06c15ad7 988 {
915e5146
HPN		 989 asection *sgotplt
990 = bfd_get_section_by_name (dynobj, ".got.plt");
991 bfd_vma got_offset;
a7c10850 992
915e5146
HPN		 993 BFD_ASSERT (h->dynindx != -1);
994 BFD_ASSERT (sgotplt != NULL);
a7c10850 995
915e5146
HPN		 996 got_offset
997 = ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
06c15ad7 998
915e5146 999 relocation = got_offset;
06c15ad7 1000 break;
915e5146 1001 }
06c15ad7 1002
4d96d128 1003 /* We didn't make a PLT entry for this symbol. Maybe everything is
915e5146
HPN		 1004 folded into the GOT. Other than folding, this happens when
1005 statically linking PIC code, or when using -Bsymbolic. Check
1006 that we instead have a GOT entry as done for us by
1007 elf_cris_adjust_dynamic_symbol, and drop through into the
1008 ordinary GOT cases. */
1009 if (h != NULL && h->got.offset == (bfd_vma) -1)
1010 {
1011 (*_bfd_error_handler)
1012 (_("%s: No PLT nor GOT for relocation %s against symbol `%s' from %s section"),
8f615d07 1013 bfd_archive_filename (input_bfd),
915e5146 1014 cris_elf_howto_table[r_type].name,
dc810e39 1015 symname[0] != '\0' ? symname : _("[whose name is lost]"),
915e5146
HPN		 1016 bfd_get_section_name (input_bfd, input_section));
1017
1018 /* FIXME: Perhaps blaming input is not the right thing to
1019 do; this is probably an internal error. But it is true
1020 that we didn't like that particular input. */
1021 bfd_set_error (bfd_error_bad_value);
1022 return false;
1023 }
1024 /* Fall through. */
1025
1026 /* The size of the actual relocation is not used here; we only
1027 fill in the GOT table here. */
1028 case R_CRIS_16_GOT:
1029 case R_CRIS_32_GOT:
1030 {
1031 bfd_vma off;
1032
1033 /* Note that despite using RELA relocations, the .got contents
1034 is always filled in with the link-relative relocation
1035 value; the addend. */
1036
1037 if (h != NULL)
1038 {
1039 off = h->got.offset;
1040 BFD_ASSERT (off != (bfd_vma) -1);
1041
1042 if (!elf_hash_table (info)->dynamic_sections_created
4d96d128 1043 || (! info->shared && h->dynindx == -1)
915e5146
HPN		 1044 || (info->shared
1045 && (info->symbolic || h->dynindx == -1)
1046 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
1047 {
4d96d128
HPN		 1048 /* This wasn't checked above for ! info->shared, but
1049 must hold there if we get here; the symbol must not
1050 be used in, or defined by a DSO. (Note that
1051 checking for ELF_LINK_HASH_DEF_REGULAR doesn't
1052 catch all cases.) */
1053 BFD_ASSERT (info->shared
1054 || (h->elf_link_hash_flags
1055 & (ELF_LINK_HASH_REF_DYNAMIC
1056 | ELF_LINK_HASH_DEF_DYNAMIC)) == 0);
1057
915e5146
HPN		 1058 /* This is actually a static link, or it is a
1059 -Bsymbolic link and the symbol is defined
1060 locally, or the symbol was forced to be local
4d96d128
HPN		 1061 because of a version file, or we're not creating a
1062 dynamic object and the symbol isn't referred to by
1063 a dynamic object. We must initialize
915e5146
HPN		 1064 this entry in the global offset table. Since
1065 the offset must always be a multiple of 4, we
1066 use the least significant bit to record whether
1067 we have initialized it already.
1068
1069 When doing a dynamic link, we create a .rela.got
1070 relocation entry to initialize the value. This
1071 is done in the finish_dynamic_symbol routine. */
1072 if ((off & 1) != 0)
1073 off &= ~1;
1074 else
1075 {
1076 bfd_put_32 (output_bfd, relocation,
1077 sgot->contents + off);
1078 h->got.offset |= 1;
1079 }
1080 }
1081 }
1082 else
1083 {
1084 BFD_ASSERT (local_got_offsets != NULL
1085 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1086
1087 off = local_got_offsets[r_symndx];
1088
1089 /* The offset must always be a multiple of 4. We use
1090 the least significant bit to record whether we have
1091 already generated the necessary reloc. */
1092 if ((off & 1) != 0)
1093 off &= ~1;
1094 else
1095 {
1096 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1097
1098 if (info->shared)
1099 {
1100 asection *srelgot;
1101 Elf_Internal_Rela outrel;
1102
1103 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1104 BFD_ASSERT (srelgot != NULL);
1105
1106 outrel.r_offset = (sgot->output_section->vma
1107 + sgot->output_offset
1108 + off);
1109 outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
1110 outrel.r_addend = relocation;
1111 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
1112 (((Elf32_External_Rela *)
1113 srelgot->contents)
1114 + srelgot->reloc_count));
1115 ++srelgot->reloc_count;
1116 }
1117
1118 local_got_offsets[r_symndx] |= 1;
1119 }
1120 }
1121
1122 relocation = sgot->output_offset + off;
1123 if (rel->r_addend != 0)
1124 {
1125 /* We can't do anything for a relocation which is against
1126 a symbol *plus offset*. GOT holds relocations for
1127 symbols. Make this an error; the compiler isn't
1128 allowed to pass us these kinds of things. */
1129 if (h == NULL)
1130 (*_bfd_error_handler)
1131 (_("%s: relocation %s with non-zero addend %d against local symbol from %s section"),
8f615d07 1132 bfd_archive_filename (input_bfd),
915e5146
HPN		 1133 cris_elf_howto_table[r_type].name,
1134 rel->r_addend,
1135 bfd_get_section_name (input_bfd, input_section));
1136 else
1137 (*_bfd_error_handler)
1138 (_("%s: relocation %s with non-zero addend %d against symbol `%s' from %s section"),
8f615d07 1139 bfd_archive_filename (input_bfd),
915e5146
HPN		 1140 cris_elf_howto_table[r_type].name,
1141 rel->r_addend,
dc810e39 1142 symname[0] != '\0' ? symname : _("[whose name is lost]"),
915e5146
HPN		 1143 bfd_get_section_name (input_bfd, input_section));
1144
1145 bfd_set_error (bfd_error_bad_value);
1146 return false;
1147 }
1148 }
1149 break;
06c15ad7 1150
915e5146
HPN		 1151 case R_CRIS_32_GOTREL:
1152 /* This relocation must only be performed against local symbols. */
1153 if (h != NULL)
1154 {
1155 (*_bfd_error_handler)
1156 (_("%s: relocation %s is not allowed for global symbol: `%s' from %s section"),
8f615d07 1157 bfd_archive_filename (input_bfd),
915e5146 1158 cris_elf_howto_table[r_type].name,
dc810e39 1159 symname,
915e5146
HPN		 1160 bfd_get_section_name (input_bfd, input_section));
1161 bfd_set_error (bfd_error_bad_value);
1162 return false;
06c15ad7
HPN		 1163 }
1164
58255df3
HPN		 1165 /* This can happen if we get a link error with the input ELF
1166 variant mismatching the output variant. Emit an error so
1167 it's noticed if it happens elsewhere. */
1168 if (sgot == NULL)
1169 {
1170 (*_bfd_error_handler)
1171 (_("%s: relocation %s in section %s with no GOT created"),
1172 bfd_archive_filename (input_bfd),
1173 cris_elf_howto_table[r_type].name,
1174 bfd_get_section_name (input_bfd, input_section));
1175 bfd_set_error (bfd_error_bad_value);
1176 return false;
1177 }
1178
915e5146
HPN		 1179 /* This relocation is like a PC-relative one, except the
1180 reference point is the location of GOT. Note that
1181 sgot->output_offset is not involved in this calculation. We
1182 always want the start of entire .got section, not the
1183 position after the reserved header. */
1184 relocation -= sgot->output_section->vma;
1185 break;
06c15ad7 1186
915e5146
HPN		 1187 case R_CRIS_32_PLT_PCREL:
1188 /* Relocation is to the entry for this symbol in the
1189 procedure linkage table. */
06c15ad7 1190
915e5146
HPN		 1191 /* Resolve a PLT_PCREL reloc against a local symbol directly,
1192 without using the procedure linkage table. */
1193 if (h == NULL)
1194 break;
1195
1196 if (h->plt.offset == (bfd_vma) -1
1197 || splt == NULL)
1198 {
1199 /* We didn't make a PLT entry for this symbol. This
1200 happens when statically linking PIC code, or when
1201 using -Bsymbolic. */
1202 break;
1203 }
1204
1205 relocation = (splt->output_section->vma
1206 + splt->output_offset
1207 + h->plt.offset);
1208 break;
1209
1210 case R_CRIS_32_PLT_GOTREL:
1211 /* Like R_CRIS_32_PLT_PCREL, but the reference point is the
1212 start of the .got section. See also comment at
1213 R_CRIS_32_GOT. */
1214 relocation -= sgot->output_section->vma;
1215
1216 /* Resolve a PLT_GOTREL reloc against a local symbol directly,
1217 without using the procedure linkage table. */
1218 if (h == NULL)
1219 break;
1220
1221 if (h->plt.offset == (bfd_vma) -1
1222 || splt == NULL)
1223 {
1224 /* We didn't make a PLT entry for this symbol. This
1225 happens when statically linking PIC code, or when
1226 using -Bsymbolic. */
1227 break;
1228 }
1229
1230 relocation = (splt->output_section->vma
1231 + splt->output_offset
1232 + h->plt.offset
1233 - sgot->output_section->vma);
1234 break;
1235
1236 case R_CRIS_8_PCREL:
1237 case R_CRIS_16_PCREL:
1238 case R_CRIS_32_PCREL:
1239 /* If the symbol was local, we need no shlib-specific handling. */
1240 if (h == NULL)
1241 break;
1242
1243 /* Fall through. */
1244 case R_CRIS_8:
1245 case R_CRIS_16:
1246 case R_CRIS_32:
1247 if (info->shared
ec338859 1248 && r_symndx != 0
915e5146
HPN		 1249 && (input_section->flags & SEC_ALLOC) != 0
1250 && ((r_type != R_CRIS_8_PCREL
1251 && r_type != R_CRIS_16_PCREL
1252 && r_type != R_CRIS_32_PCREL)
1253 || (!info->symbolic
1254 || (h->elf_link_hash_flags
1255 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
1256 {
1257 Elf_Internal_Rela outrel;
1258 boolean skip, relocate;
1259
1260 /* When generating a shared object, these relocations
1261 are copied into the output file to be resolved at run
1262 time. */
1263
1264 if (sreloc == NULL)
1265 {
1266 const char *name;
1267
1268 name = (bfd_elf_string_from_elf_section
1269 (input_bfd,
1270 elf_elfheader (input_bfd)->e_shstrndx,
1271 elf_section_data (input_section)->rel_hdr.sh_name));
1272 if (name == NULL)
1273 return false;
1274
1275 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1276 && strcmp (bfd_get_section_name (input_bfd,
1277 input_section),
1278 name + 5) == 0);
1279
1280 sreloc = bfd_get_section_by_name (dynobj, name);
1281
1282 /* That section should have been created in
1283 cris_elf_check_relocs, but that function will not be
1284 called for objects which fail in
1285 cris_elf_merge_private_bfd_data. */
1286 if (sreloc == NULL)
1287 {
1288 (*_bfd_error_handler)
1289 (_("%s: Internal inconsistency; no relocation section %s"),
8f615d07 1290 bfd_archive_filename (input_bfd),
915e5146
HPN		 1291 name);
1292
1293 bfd_set_error (bfd_error_bad_value);
1294 return false;
1295 }
1296 }
1297
1298 skip = false;
0bb2d96a 1299 relocate = false;
915e5146 1300
c629eae0
JJ		 1301 outrel.r_offset =
1302 _bfd_elf_section_offset (output_bfd, info, input_section,
1303 rel->r_offset);
1304 if (outrel.r_offset == (bfd_vma) -1)
1305 skip = true;
0bb2d96a
JJ		 1306 else if (outrel.r_offset == (bfd_vma) -2)
1307 skip = true, relocate = true;
915e5146
HPN		 1308 outrel.r_offset += (input_section->output_section->vma
1309 + input_section->output_offset);
1310
1311 if (skip)
0bb2d96a 1312 memset (&outrel, 0, sizeof outrel);
915e5146
HPN		 1313 /* h->dynindx may be -1 if the symbol was marked to
1314 become local. */
1315 else if (h != NULL
1316 && ((! info->symbolic && h->dynindx != -1)
1317 || (h->elf_link_hash_flags
1318 & ELF_LINK_HASH_DEF_REGULAR) == 0))
1319 {
1320 BFD_ASSERT (h->dynindx != -1);
915e5146
HPN		 1321 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1322 outrel.r_addend = relocation + rel->r_addend;
1323 }
1324 else
1325 {
1326 if (r_type == R_CRIS_32)
1327 {
1328 relocate = true;
1329 outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
1330 outrel.r_addend = relocation + rel->r_addend;
1331 }
1332 else
1333 {
1334 long indx;
1335
1336 if (h == NULL)
1337 sec = local_sections[r_symndx];
1338 else
1339 {
1340 BFD_ASSERT (h->root.type == bfd_link_hash_defined
1341 || (h->root.type
1342 == bfd_link_hash_defweak));
1343 sec = h->root.u.def.section;
1344 }
1345 if (sec != NULL && bfd_is_abs_section (sec))
1346 indx = 0;
1347 else if (sec == NULL || sec->owner == NULL)
1348 {
1349 bfd_set_error (bfd_error_bad_value);
1350 return false;
1351 }
1352 else
1353 {
1354 asection *osec;
1355
1356 osec = sec->output_section;
1357 indx = elf_section_data (osec)->dynindx;
1358 BFD_ASSERT (indx > 0);
1359 }
1360
915e5146
HPN		 1361 outrel.r_info = ELF32_R_INFO (indx, r_type);
1362 outrel.r_addend = relocation + rel->r_addend;
1363 }
1364 }
1365
1366 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
1367 (((Elf32_External_Rela *)
1368 sreloc->contents)
1369 + sreloc->reloc_count));
1370 ++sreloc->reloc_count;
1371
1372 /* This reloc will be computed at runtime, so there's no
1373 need to do anything now, except for R_CRIS_32 relocations
1374 that have been turned into R_CRIS_RELATIVE. */
1375 if (!relocate)
1376 continue;
1377 }
1378
1379 break;
1380 }
1381
1382 r = cris_final_link_relocate (howto, input_bfd, input_section,
1383 contents, rel, relocation);
1384
1385 if (r != bfd_reloc_ok)
1386 {
1387 const char * msg = (const char *) NULL;
1388
1389 switch (r)
1390 {
1391 case bfd_reloc_overflow:
1392 r = info->callbacks->reloc_overflow
dc810e39 1393 (info, symname, howto->name, (bfd_vma) 0,
915e5146
HPN		 1394 input_bfd, input_section, rel->r_offset);
1395 break;
1396
1397 case bfd_reloc_undefined:
1398 r = info->callbacks->undefined_symbol
dc810e39 1399 (info, symname, input_bfd, input_section, rel->r_offset,
915e5146
HPN		 1400 true);
1401 break;
1402
1403 case bfd_reloc_outofrange:
1404 msg = _("internal error: out of range error");
1405 break;
1406
1407 case bfd_reloc_notsupported:
1408 msg = _("internal error: unsupported relocation error");
1409 break;
1410
1411 case bfd_reloc_dangerous:
1412 msg = _("internal error: dangerous relocation");
1413 break;
1414
1415 default:
1416 msg = _("internal error: unknown error");
1417 break;
1418 }
1419
1420 if (msg)
1421 r = info->callbacks->warning
dc810e39 1422 (info, msg, symname, input_bfd, input_section, rel->r_offset);
915e5146
HPN		 1423
1424 if (! r)
1425 return false;
1426 }
1427 }
1428
1429 return true;
1430}
1431\f
1432/* Finish up dynamic symbol handling. We set the contents of various
1433 dynamic sections here. */
1434
1435static boolean
1436elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
1437 bfd *output_bfd;
1438 struct bfd_link_info *info;
1439 struct elf_link_hash_entry *h;
1440 Elf_Internal_Sym *sym;
1441{
1442 bfd *dynobj;
1443 int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16;
1444
1445 dynobj = elf_hash_table (info)->dynobj;
1446
1447 if (h->plt.offset != (bfd_vma) -1)
1448 {
1449 asection *splt;
1450 asection *sgotplt;
1451 asection *sgot;
1452 asection *srela;
1453 bfd_vma got_base;
1454
1455 bfd_vma gotplt_offset
1456 = ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
1457 Elf_Internal_Rela rela;
1458 boolean has_gotplt = gotplt_offset != 0;
1459
1460 /* Get the index in the procedure linkage table which
1461 corresponds to this symbol. This is the index of this symbol
1462 in all the symbols for which we are making plt entries. The
1463 first entry in the procedure linkage table is reserved. */
1464 /* We have to count backwards here, and the result is only valid as
1465 an index into .got.plt and its relocations. FIXME: Constants... */
1466 bfd_vma gotplt_index = gotplt_offset/4 - 3;
1467
1468 /* Get the offset into the .got table of the entry that corresponds
1469 to this function. Note that we embed knowledge that "incoming"
1470 .got goes after .got.plt in the output without padding (pointer
1471 aligned). However, that knowledge is present in several other
1472 places too, here and in elflink.h at least. */
1473 bfd_vma got_offset
1474 = (has_gotplt
1475 ? gotplt_offset
1476 : h->got.offset + elf_cris_hash_table(info)->next_gotplt_entry);
1477
1478 /* This symbol has an entry in the procedure linkage table. Set it
1479 up. */
1480
1481 BFD_ASSERT (h->dynindx != -1);
1482
1483 splt = bfd_get_section_by_name (dynobj, ".plt");
1484 sgot = bfd_get_section_by_name (dynobj, ".got");
1485 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1486 srela = bfd_get_section_by_name (dynobj, ".rela.plt");
1487 BFD_ASSERT (splt != NULL && sgotplt != NULL
1488 && (! has_gotplt || srela != NULL));
1489
1490 got_base = sgotplt->output_section->vma + sgotplt->output_offset;
1491
1492 /* Fill in the entry in the procedure linkage table. */
1493 if (! info->shared)
1494 {
1495 memcpy (splt->contents + h->plt.offset, elf_cris_plt_entry,
1496 PLT_ENTRY_SIZE);
1497
1498 /* We need to enter the absolute address of the GOT entry here. */
1499 bfd_put_32 (output_bfd, got_base + got_offset,
1500 splt->contents + h->plt.offset + plt_off1);
1501 }
1502 else
1503 {
1504 memcpy (splt->contents + h->plt.offset, elf_cris_pic_plt_entry,
1505 PLT_ENTRY_SIZE);
1506 bfd_put_32 (output_bfd, got_offset,
1507 splt->contents + h->plt.offset + plt_off1);
1508 }
1509
1510 /* Fill in the plt entry and make a relocation, if this is a "real"
1511 PLT entry. */
1512 if (has_gotplt)
1513 {
1514 /* Fill in the offset into the reloc table. */
1515 bfd_put_32 (output_bfd,
1516 gotplt_index * sizeof (Elf32_External_Rela),
1517 splt->contents + h->plt.offset + plt_off2);
1518
1519 /* Fill in the offset to the first PLT entry, where to "jump". */
1520 bfd_put_32 (output_bfd, - (h->plt.offset + plt_off3 + 4),
1521 splt->contents + h->plt.offset + plt_off3);
1522
1523 /* Fill in the entry in the global offset table with the address of
1524 the relocating stub. */
1525 bfd_put_32 (output_bfd,
1526 (splt->output_section->vma
1527 + splt->output_offset
1528 + h->plt.offset
1529 + 8),
1530 sgotplt->contents + got_offset);
1531
1532 /* Fill in the entry in the .rela.plt section. */
1533 rela.r_offset = (sgotplt->output_section->vma
1534 + sgotplt->output_offset
1535 + got_offset);
1536 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_JUMP_SLOT);
1537 rela.r_addend = 0;
1538 bfd_elf32_swap_reloca_out (output_bfd, &rela,
1539 ((Elf32_External_Rela *) srela->contents
1540 + gotplt_index));
1541 }
1542
1543 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
1544 {
1545 /* Mark the symbol as undefined, rather than as defined in
1546 the .plt section. Leave the value alone. */
1547 sym->st_shndx = SHN_UNDEF;
1548
1549 /* FIXME: From elf32-sparc.c 2001-02-19 (1.18). I still don't
1550 know whether resetting the value is significant; if it really
1551 is, rather than a quirk or bug in the sparc port, then I
1552 believe we'd see this elsewhere. */
1553 /* If the symbol is weak, we do need to clear the value.
1554 Otherwise, the PLT entry would provide a definition for
1555 the symbol even if the symbol wasn't defined anywhere,
1556 and so the symbol would never be NULL. */
1557 if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK)
1558 == 0)
1559 sym->st_value = 0;
1560 }
1561 }
1562
4d96d128
HPN		 1563 /* We don't emit .got relocs for symbols that aren't in the
1564 dynamic-symbols table for an ordinary program. */
1565 if (h->got.offset != (bfd_vma) -1
1566 && (info->shared || h->dynindx != -1))
915e5146
HPN		 1567 {
1568 asection *sgot;
1569 asection *srela;
1570 Elf_Internal_Rela rela;
dc810e39 1571 bfd_byte *where;
915e5146
HPN		 1572
1573 /* This symbol has an entry in the global offset table. Set it up. */
1574
1575 sgot = bfd_get_section_by_name (dynobj, ".got");
1576 srela = bfd_get_section_by_name (dynobj, ".rela.got");
1577 BFD_ASSERT (sgot != NULL && srela != NULL);
1578
1579 rela.r_offset = (sgot->output_section->vma
1580 + sgot->output_offset
dc810e39 1581 + (h->got.offset &~ (bfd_vma) 1));
915e5146
HPN		 1582
1583 /* If this is a static link, or it is a -Bsymbolic link and the
1584 symbol is defined locally or was forced to be local because
1585 of a version file, we just want to emit a RELATIVE reloc.
1586 The entry in the global offset table will already have been
1587 initialized in the relocate_section function. */
dc810e39 1588 where = sgot->contents + (h->got.offset &~ (bfd_vma) 1);
915e5146
HPN		 1589 if (! elf_hash_table (info)->dynamic_sections_created
1590 || (info->shared
1591 && (info->symbolic || h->dynindx == -1)
1592 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
1593 {
1594 rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
dc810e39 1595 rela.r_addend = bfd_get_signed_32 (output_bfd, where);
915e5146
HPN		 1596 }
1597 else
1598 {
dc810e39 1599 bfd_put_32 (output_bfd, (bfd_vma) 0, where);
915e5146
HPN		 1600 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_GLOB_DAT);
1601 rela.r_addend = 0;
1602 }
1603
1604 bfd_elf32_swap_reloca_out (output_bfd, &rela,
1605 ((Elf32_External_Rela *) srela->contents
1606 + srela->reloc_count));
1607 ++srela->reloc_count;
1608 }
1609
1610 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
1611 {
1612 asection *s;
1613 Elf_Internal_Rela rela;
1614
1615 /* This symbol needs a copy reloc. Set it up. */
1616
1617 BFD_ASSERT (h->dynindx != -1
1618 && (h->root.type == bfd_link_hash_defined
1619 || h->root.type == bfd_link_hash_defweak));
1620
1621 s = bfd_get_section_by_name (h->root.u.def.section->owner,
1622 ".rela.bss");
1623 BFD_ASSERT (s != NULL);
1624
1625 rela.r_offset = (h->root.u.def.value
1626 + h->root.u.def.section->output_section->vma
1627 + h->root.u.def.section->output_offset);
1628 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_COPY);
1629 rela.r_addend = 0;
1630 bfd_elf32_swap_reloca_out (output_bfd, &rela,
1631 ((Elf32_External_Rela *) s->contents
1632 + s->reloc_count));
1633 ++s->reloc_count;
1634 }
1635
1636 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1637 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
1638 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1639 sym->st_shndx = SHN_ABS;
1640
1641 return true;
1642}
1643\f
1644/* Finish up the dynamic sections. */
1645
1646static boolean
1647elf_cris_finish_dynamic_sections (output_bfd, info)
1648 bfd *output_bfd;
1649 struct bfd_link_info *info;
1650{
1651 bfd *dynobj;
1652 asection *sgot;
1653 asection *sdyn;
1654
1655 dynobj = elf_hash_table (info)->dynobj;
1656
1657 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
1658 BFD_ASSERT (sgot != NULL);
1659 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
1660
1661 if (elf_hash_table (info)->dynamic_sections_created)
1662 {
1663 asection *splt;
1664 Elf32_External_Dyn *dyncon, *dynconend;
1665
1666 splt = bfd_get_section_by_name (dynobj, ".plt");
1667 BFD_ASSERT (splt != NULL && sdyn != NULL);
1668
1669 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1670 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
1671 for (; dyncon < dynconend; dyncon++)
1672 {
1673 Elf_Internal_Dyn dyn;
1674 asection *s;
1675
1676 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1677
1678 switch (dyn.d_tag)
1679 {
1680 default:
1681 break;
1682
1683 case DT_PLTGOT:
1684 s = bfd_get_section_by_name (output_bfd, ".got");
1685 BFD_ASSERT (s != NULL);
1686 dyn.d_un.d_ptr = s->vma;
1687 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1688 break;
1689
1690 case DT_JMPREL:
1691 /* Yes, we *can* have a .plt and no .plt.rela, for instance
1692 if all symbols are found in the .got (not .got.plt). */
1693 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1694 dyn.d_un.d_ptr = s != NULL ? s->vma : 0;
1695 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1696 break;
1697
1698 case DT_PLTRELSZ:
1699 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1700 if (s == NULL)
1701 dyn.d_un.d_val = 0;
1702 else if (s->_cooked_size != 0)
1703 dyn.d_un.d_val = s->_cooked_size;
1704 else
1705 dyn.d_un.d_val = s->_raw_size;
1706 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1707 break;
1708
1709 case DT_RELASZ:
1710 /* The procedure linkage table relocs (DT_JMPREL) should
1711 not be included in the overall relocs (DT_RELA).
1712 Therefore, we override the DT_RELASZ entry here to
1713 make it not include the JMPREL relocs. Since the
1714 linker script arranges for .rela.plt to follow all
1715 other relocation sections, we don't have to worry
1716 about changing the DT_RELA entry. */
1717 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1718 if (s != NULL)
1719 {
1720 if (s->_cooked_size != 0)
1721 dyn.d_un.d_val -= s->_cooked_size;
1722 else
1723 dyn.d_un.d_val -= s->_raw_size;
1724 }
1725 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1726 break;
1727 }
1728 }
1729
1730 /* Fill in the first entry in the procedure linkage table. */
1731 if (splt->_raw_size > 0)
1732 {
1733 if (info->shared)
1734 memcpy (splt->contents, elf_cris_pic_plt0_entry, PLT_ENTRY_SIZE);
1735 else
1736 {
1737 memcpy (splt->contents, elf_cris_plt0_entry, PLT_ENTRY_SIZE);
1738 bfd_put_32 (output_bfd,
1739 sgot->output_section->vma + sgot->output_offset + 4,
1740 splt->contents + 6);
1741 bfd_put_32 (output_bfd,
1742 sgot->output_section->vma + sgot->output_offset + 8,
1743 splt->contents + 14);
1744
1745 elf_section_data (splt->output_section)->this_hdr.sh_entsize
1746 = PLT_ENTRY_SIZE;
1747 }
1748 }
1749 }
1750
1751 /* Fill in the first three entries in the global offset table. */
1752 if (sgot->_raw_size > 0)
1753 {
1754 if (sdyn == NULL)
1755 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1756 else
1757 bfd_put_32 (output_bfd,
1758 sdyn->output_section->vma + sdyn->output_offset,
1759 sgot->contents);
1760 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1761 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1762 }
1763
1764 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1765
1766 return true;
06c15ad7
HPN		 1767}
1768\f
1769/* Return the section that should be marked against GC for a given
1770 relocation. */
1771
1772static asection *
1e2f5b6e
AM		 1773cris_elf_gc_mark_hook (sec, info, rel, h, sym)
1774 asection * sec;
06c15ad7
HPN		 1775 struct bfd_link_info * info ATTRIBUTE_UNUSED;
1776 Elf_Internal_Rela * rel;
1777 struct elf_link_hash_entry * h;
1778 Elf_Internal_Sym * sym;
1779{
1780 if (h != NULL)
1781 {
1782 switch (ELF32_R_TYPE (rel->r_info))
1783 {
1784 case R_CRIS_GNU_VTINHERIT:
1785 case R_CRIS_GNU_VTENTRY:
1786 break;
1787
1788 default:
1789 switch (h->root.type)
1790 {
1791 case bfd_link_hash_defined:
1792 case bfd_link_hash_defweak:
1793 return h->root.u.def.section;
1794
1795 case bfd_link_hash_common:
1796 return h->root.u.c.p->section;
1797
1798 default:
1799 break;
1800 }
1801 }
1802 }
1803 else
1e2f5b6e 1804 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
06c15ad7
HPN		 1805
1806 return NULL;
1807}
1808
1809/* Update the got entry reference counts for the section being removed. */
1810
1811static boolean
1812cris_elf_gc_sweep_hook (abfd, info, sec, relocs)
1813 bfd * abfd ATTRIBUTE_UNUSED;
1814 struct bfd_link_info * info ATTRIBUTE_UNUSED;
1815 asection * sec ATTRIBUTE_UNUSED;
1816 const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED;
1817{
915e5146
HPN		 1818 Elf_Internal_Shdr *symtab_hdr;
1819 struct elf_link_hash_entry **sym_hashes;
1820 bfd_signed_vma *local_got_refcounts;
1821 const Elf_Internal_Rela *rel, *relend;
1822 unsigned long r_symndx;
1823 struct elf_link_hash_entry *h;
1824 bfd *dynobj;
1825 asection *sgot;
1826 asection *srelgot;
1827
1828 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1829 sym_hashes = elf_sym_hashes (abfd);
1830 local_got_refcounts = elf_local_got_refcounts (abfd);
1831
1832 dynobj = elf_hash_table (info)->dynobj;
1833 if (dynobj == NULL)
1834 return true;
1835
1836 sgot = bfd_get_section_by_name (dynobj, ".got");
1837 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1838
1839 relend = relocs + sec->reloc_count;
1840 for (rel = relocs; rel < relend; rel++)
1841 {
1842 switch (ELF32_R_TYPE (rel->r_info))
1843 {
1844 case R_CRIS_16_GOT:
1845 case R_CRIS_32_GOT:
1846 r_symndx = ELF32_R_SYM (rel->r_info);
1847 if (r_symndx >= symtab_hdr->sh_info)
1848 {
1849 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1850 if (h->got.refcount > 0)
1851 {
1852 --h->got.refcount;
1853 if (h->got.refcount == 0)
1854 {
1855 /* We don't need the .got entry any more. */
1856 sgot->_raw_size -= 4;
1857 srelgot->_raw_size -= sizeof (Elf32_External_Rela);
1858 }
1859 }
1860 break;
1861 }
1862
1863 local_got_reloc:
1864 if (local_got_refcounts != NULL)
1865 {
1866 if (local_got_refcounts[r_symndx] > 0)
1867 {
1868 --local_got_refcounts[r_symndx];
1869 if (local_got_refcounts[r_symndx] == 0)
1870 {
1871 /* We don't need the .got entry any more. */
1872 sgot->_raw_size -= 4;
1873 if (info->shared)
1874 srelgot->_raw_size -= sizeof (Elf32_External_Rela);
1875 }
1876 }
1877 }
1878 break;
1879
1880 case R_CRIS_16_GOTPLT:
1881 case R_CRIS_32_GOTPLT:
1882 /* For local symbols, treat these like GOT relocs. */
1883 r_symndx = ELF32_R_SYM (rel->r_info);
1884 if (r_symndx < symtab_hdr->sh_info)
1885 goto local_got_reloc;
1886
1887 case R_CRIS_32_PLT_GOTREL:
1888 /* FIXME: We don't garbage-collect away the .got section. */
1889 if (local_got_refcounts != NULL)
1890 local_got_refcounts[-1]--;
1891 /* Fall through. */
1892
1893 case R_CRIS_8_PCREL:
1894 case R_CRIS_16_PCREL:
1895 case R_CRIS_32_PCREL:
1896 case R_CRIS_32_PLT_PCREL:
1897 r_symndx = ELF32_R_SYM (rel->r_info);
1898 if (r_symndx >= symtab_hdr->sh_info)
1899 {
1900 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1901 if (h->plt.refcount > 0)
1902 --h->plt.refcount;
1903 }
1904 break;
1905
1906 default:
1907 break;
1908 }
1909 }
1910
06c15ad7
HPN		 1911 return true;
1912}
1913
915e5146
HPN		 1914/* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
1915 entry but we found we will not create any. Called when we find we will
4d96d128
HPN		 1916 not have any PLT for this symbol, by for example
1917 elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
1918 or elf_cris_size_dynamic_sections if no dynamic sections will be
1919 created (we're only linking static objects). */
915e5146
HPN		 1920
1921static boolean
1922elf_cris_adjust_gotplt_to_got (h, p)
1923 struct elf_cris_link_hash_entry *h;
1924 PTR p;
1925{
1926 struct bfd_link_info *info = (struct bfd_link_info *) p;
1927 bfd *dynobj = elf_hash_table (info)->dynobj;
1928
1929 BFD_ASSERT (dynobj != NULL);
1930
e92d460e
AM		 1931 if (h->root.root.type == bfd_link_hash_warning)
1932 h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
1933
915e5146
HPN		 1934 /* If nobody wanted a GOTPLT with this symbol, we're done. */
1935 if (h->gotplt_refcount <= 0)
1936 return true;
1937
1938 if (h->root.got.refcount > 0)
1939 {
1940 /* There's a GOT entry for this symbol. Just adjust the refcount.
1941 Probably not necessary at this stage, but keeping it accurate
1942 helps avoiding surprises later. */
1943 h->root.got.refcount += h->gotplt_refcount;
1944 h->gotplt_refcount = -1;
1945 }
1946 else
1947 {
4d96d128 1948 /* No GOT entry for this symbol. We need to create one. */
915e5146
HPN		 1949 asection *sgot = bfd_get_section_by_name (dynobj, ".got");
1950 asection *srelgot
1951 = bfd_get_section_by_name (dynobj, ".rela.got");
1952
1953 /* Put an accurate refcount there. */
1954 h->root.got.refcount = h->gotplt_refcount;
1955
1956 h->gotplt_refcount = -1;
1957
44aa49bb
HPN		 1958 /* We always have a .got and a .rela.got section if there were
1959 GOTPLT relocs in input. */
1960 BFD_ASSERT (sgot != NULL && srelgot != NULL);
915e5146
HPN		 1961
1962 /* Allocate space in the .got section. */
1963 sgot->_raw_size += 4;
1964
1965 /* Allocate relocation space. */
1966 srelgot->_raw_size += sizeof (Elf32_External_Rela);
1967 }
1968
1969 return true;
1970}
1971
1972/* Try to fold PLT entries with GOT entries. There are two cases when we
1973 want to do this:
1974
1975 - When all PLT references are GOTPLT references, and there are GOT
1976 references. We don't have to generate a PLT at all.
1977
1978 - When there are both (ordinary) PLT references and GOT references.
1979 We want to make the PLT reference use the ordinary GOT entry rather
1980 than a run-time dynamically resolved GOTPLT entry (since the GOT
1981 entry will have to be resolved at startup anyway).
1982
1983 Though the latter case is handled when room for the PLT is allocated,
1984 not here.
1985
1986 Note that this function is called before symbols are forced local by
1987 version scripts. The differing cases are handled by
1988 elf_cris_hide_symbol. */
1989
1990static boolean
1991elf_cris_try_fold_plt_to_got (h, p)
1992 struct elf_cris_link_hash_entry *h;
1993 PTR p;
1994{
1995 struct bfd_link_info *info = (struct bfd_link_info *) p;
1996
1997 /* If there are no GOT references for this symbol, we can't fold any
1998 other reference so there's nothing to do. Likewise if there are no
1999 PLT references; GOTPLT references included. */
2000 if (h->root.got.refcount <= 0 || h->root.plt.refcount <= 0)
2001 return true;
2002
2003 /* GOTPLT relocs are supposed to be included into the PLT refcount. */
2004 BFD_ASSERT (h->gotplt_refcount <= h->root.plt.refcount);
2005
2006 if (h->gotplt_refcount == h->root.plt.refcount)
2007 {
4d96d128 2008 /* The only PLT references are GOTPLT references, and there are GOT
915e5146
HPN		 2009 references. Convert PLT to GOT references. */
2010 if (! elf_cris_adjust_gotplt_to_got (h, info))
2011 return false;
2012
2013 /* Clear the PLT references, so no PLT will be created. */
2014 h->root.plt.offset = (bfd_vma) -1;
2015 }
2016
2017 return true;
2018}
2019
2020/* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
2021 to use a GOT entry (and create one) rather than requiring a GOTPLT
2022 entry. */
2023
2024static void
e5094212 2025elf_cris_hide_symbol (info, h, force_local)
915e5146
HPN		 2026 struct bfd_link_info *info;
2027 struct elf_link_hash_entry *h;
e5094212 2028 boolean force_local;
915e5146
HPN		 2029{
2030 elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry *) h, info);
2031
e5094212 2032 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
915e5146
HPN		 2033}
2034
2035/* Adjust a symbol defined by a dynamic object and referenced by a
2036 regular object. The current definition is in some section of the
2037 dynamic object, but we're not including those sections. We have to
2038 change the definition to something the rest of the link can
2039 understand. */
2040
2041static boolean
2042elf_cris_adjust_dynamic_symbol (info, h)
2043 struct bfd_link_info *info;
2044 struct elf_link_hash_entry *h;
2045{
2046 bfd *dynobj;
2047 asection *s;
2048 unsigned int power_of_two;
2049
2050 dynobj = elf_hash_table (info)->dynobj;
2051
2052 /* Make sure we know what is going on here. */
2053 BFD_ASSERT (dynobj != NULL
2054 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
2055 || h->weakdef != NULL
2056 || ((h->elf_link_hash_flags
2057 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
2058 && (h->elf_link_hash_flags
2059 & ELF_LINK_HASH_REF_REGULAR) != 0
2060 && (h->elf_link_hash_flags
2061 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
2062
2063 /* If this is a function, put it in the procedure linkage table. We
2064 will fill in the contents of the procedure linkage table later,
2065 when we know the address of the .got section. */
2066 if (h->type == STT_FUNC
2067 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
2068 {
2069 if (! info->shared
2070 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
2071 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0
2072 /* We must always create the plt entry if it was referenced by a
2073 PLT relocation. In this case we already recorded it as a
2074 dynamic symbol. */
2075 /* FIXME: m68k and i386 differ here, for unclear reasons. */
2076 && h->dynindx == -1)
2077 {
2078 /* This case can occur if we saw a PLT reloc in an input file,
2079 but the symbol was never referred to by a dynamic object. In
2080 such a case, we don't actually need to build a procedure
4d96d128
HPN		 2081 linkage table, and we can just do a PC reloc instead, or
2082 change a .got.plt index to a .got index for GOTPLT relocs. */
915e5146
HPN		 2083 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
2084 h->plt.offset = (bfd_vma) -1;
2085
2086 return
2087 elf_cris_adjust_gotplt_to_got ((struct
2088 elf_cris_link_hash_entry *) h,
2089 info);
2090 }
2091
2092 /* If there are only GOT references and GOTPLT references to this
2093 PLT entry, get rid of the PLT. */
2094 if (! elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry *)
2095 h, info))
2096 return false;
2097
2098 /* GC or folding may have rendered this entry unused. */
2099 if (h->plt.refcount <= 0)
2100 {
2101 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
2102 h->plt.offset = (bfd_vma) -1;
2103 return true;
2104 }
2105
2106 /* Make sure this symbol is output as a dynamic symbol. */
2107 if (h->dynindx == -1)
2108 {
2109 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
2110 return false;
2111 }
2112
2113 s = bfd_get_section_by_name (dynobj, ".plt");
2114 BFD_ASSERT (s != NULL);
2115
2116 /* If this is the first .plt entry, make room for the special
2117 first entry. */
2118 if (s->_raw_size == 0)
2119 s->_raw_size += PLT_ENTRY_SIZE;
2120
2121 /* If this symbol is not defined in a regular file, and we are
2122 not generating a shared library, then set the symbol to this
2123 location in the .plt. This is required to make function
2124 pointers compare as equal between the normal executable and
2125 the shared library. */
2126 if (!info->shared
2127 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
2128 {
2129 h->root.u.def.section = s;
2130 h->root.u.def.value = s->_raw_size;
2131 }
2132
4d96d128
HPN		 2133 /* If there's already a GOT entry, use that, not a .got.plt. A
2134 GOT field still has a reference count when we get here; it's
2135 not yet changed to an offset. */
915e5146
HPN		 2136 if (h->got.refcount > 0)
2137 {
2138 h->got.refcount += h->plt.refcount;
2139
2140 /* Mark the PLT offset to use the GOT entry by setting the low
2141 bit in the plt offset; it is always a multiple of
2142 pointer-size. */
2143 BFD_ASSERT ((s->_raw_size & 3) == 0);
2144
2145 /* Change the PLT refcount to an offset. */
2146 h->plt.offset = s->_raw_size;
2147
2148 /* By not setting gotplt_offset (i.e. it remains at 0), we signal
2149 that the got entry should be used instead. */
2150 BFD_ASSERT (((struct elf_cris_link_hash_entry *)
2151 h)->gotplt_offset == 0);
2152
2153 /* Make room for this entry. */
2154 s->_raw_size += PLT_ENTRY_SIZE;
2155
2156 return true;
2157 }
2158
2159 /* No GOT reference for this symbol; prepare for an ordinary PLT. */
2160 h->plt.offset = s->_raw_size;
2161
2162 /* Make room for this entry. */
2163 s->_raw_size += PLT_ENTRY_SIZE;
2164
2165 /* We also need to make an entry in the .got.plt section, which
2166 will be placed in the .got section by the linker script. */
2167 ((struct elf_cris_link_hash_entry *) h)->gotplt_offset
2168 = elf_cris_hash_table (info)->next_gotplt_entry;
2169 elf_cris_hash_table (info)->next_gotplt_entry += 4;
2170
2171 s = bfd_get_section_by_name (dynobj, ".got.plt");
2172 BFD_ASSERT (s != NULL);
2173 s->_raw_size += 4;
2174
2175 /* We also need to make an entry in the .rela.plt section. */
2176
2177 s = bfd_get_section_by_name (dynobj, ".rela.plt");
2178 BFD_ASSERT (s != NULL);
2179 s->_raw_size += sizeof (Elf32_External_Rela);
2180
2181 return true;
2182 }
2183
2184 /* Reinitialize the plt offset now that it is not used as a reference
2185 count any more. */
2186 h->plt.offset = (bfd_vma) -1;
2187
2188 /* If this is a weak symbol, and there is a real definition, the
2189 processor independent code will have arranged for us to see the
2190 real definition first, and we can just use the same value. */
2191 if (h->weakdef != NULL)
2192 {
2193 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
2194 || h->weakdef->root.type == bfd_link_hash_defweak);
2195 h->root.u.def.section = h->weakdef->root.u.def.section;
2196 h->root.u.def.value = h->weakdef->root.u.def.value;
2197 return true;
2198 }
2199
2200 /* This is a reference to a symbol defined by a dynamic object which
2201 is not a function. */
2202
2203 /* If we are creating a shared library, we must presume that the
2204 only references to the symbol are via the global offset table.
2205 For such cases we need not do anything here; the relocations will
2206 be handled correctly by relocate_section. */
2207 if (info->shared)
2208 return true;
2209
2210 /* If there are no references to this symbol that do not use the
2211 GOT, we don't need to generate a copy reloc. */
2212 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
2213 return true;
2214
2215 /* We must allocate the symbol in our .dynbss section, which will
2216 become part of the .bss section of the executable. There will be
2217 an entry for this symbol in the .dynsym section. The dynamic
2218 object will contain position independent code, so all references
2219 from the dynamic object to this symbol will go through the global
2220 offset table. The dynamic linker will use the .dynsym entry to
2221 determine the address it must put in the global offset table, so
2222 both the dynamic object and the regular object will refer to the
2223 same memory location for the variable. */
2224
2225 s = bfd_get_section_by_name (dynobj, ".dynbss");
2226 BFD_ASSERT (s != NULL);
2227
2228 /* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
2229 copy the initial value out of the dynamic object and into the
2230 runtime process image. We need to remember the offset into the
2231 .rela.bss section we are going to use. */
2232 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2233 {
2234 asection *srel;
2235
2236 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
2237 BFD_ASSERT (srel != NULL);
2238 srel->_raw_size += sizeof (Elf32_External_Rela);
2239 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
2240 }
2241
2242 /* Historic precedent: m68k and i386 allow max 8-byte alignment for the
2243 thing to copy; so do we. */
2244
2245 /* We need to figure out the alignment required for this symbol. I
2246 have no idea how ELF linkers handle this. */
2247 power_of_two = bfd_log2 (h->size);
2248 if (power_of_two > 3)
2249 power_of_two = 3;
2250
2251 /* Apply the required alignment. */
2252 s->_raw_size = BFD_ALIGN (s->_raw_size,
2253 (bfd_size_type) (1 << power_of_two));
2254 if (power_of_two > bfd_get_section_alignment (dynobj, s))
2255 {
2256 if (!bfd_set_section_alignment (dynobj, s, power_of_two))
2257 return false;
2258 }
2259
2260 /* Define the symbol as being at this point in the section. */
2261 h->root.u.def.section = s;
2262 h->root.u.def.value = s->_raw_size;
2263
2264 /* Increment the section size to make room for the symbol. */
2265 s->_raw_size += h->size;
2266
2267 return true;
2268}
2269
2270/* Look through the relocs for a section during the first phase. */
a7c10850 2271
06c15ad7
HPN		 2272static boolean
2273cris_elf_check_relocs (abfd, info, sec, relocs)
2274 bfd *abfd;
2275 struct bfd_link_info *info;
2276 asection *sec;
2277 const Elf_Internal_Rela *relocs;
2278{
915e5146 2279 bfd *dynobj;
06c15ad7
HPN		 2280 Elf_Internal_Shdr *symtab_hdr;
2281 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
915e5146 2282 bfd_signed_vma *local_got_refcounts;
06c15ad7
HPN		 2283 const Elf_Internal_Rela *rel;
2284 const Elf_Internal_Rela *rel_end;
915e5146
HPN		 2285 asection *sgot;
2286 asection *srelgot;
2287 asection *sreloc;
a7c10850 2288
06c15ad7
HPN		 2289 if (info->relocateable)
2290 return true;
a7c10850 2291
915e5146 2292 dynobj = elf_hash_table (info)->dynobj;
06c15ad7
HPN		 2293 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2294 sym_hashes = elf_sym_hashes (abfd);
a7c10850 2295 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
915e5146
HPN		 2296 local_got_refcounts = elf_local_got_refcounts (abfd);
2297
2298 sgot = NULL;
2299 srelgot = NULL;
2300 sreloc = NULL;
2301
06c15ad7
HPN		 2302 if (!elf_bad_symtab (abfd))
2303 sym_hashes_end -= symtab_hdr->sh_info;
a7c10850 2304
06c15ad7
HPN		 2305 rel_end = relocs + sec->reloc_count;
2306 for (rel = relocs; rel < rel_end; rel++)
2307 {
2308 struct elf_link_hash_entry *h;
2309 unsigned long r_symndx;
915e5146 2310 enum elf_cris_reloc_type r_type;
a7c10850 2311
06c15ad7
HPN		 2312 r_symndx = ELF32_R_SYM (rel->r_info);
2313 if (r_symndx < symtab_hdr->sh_info)
2314 h = NULL;
2315 else
2316 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
a7c10850 2317
915e5146
HPN		 2318 r_type = ELF32_R_TYPE (rel->r_info);
2319
2320 /* Some relocs require linker-created sections; we need to hang them
2321 on the first input bfd we found that contained dynamic relocs. */
2322 switch (r_type)
2323 {
2324 case R_CRIS_16_GOT:
2325 case R_CRIS_32_GOT:
2326 case R_CRIS_32_GOTREL:
2327 case R_CRIS_32_PLT_GOTREL:
2328 case R_CRIS_32_PLT_PCREL:
2329 case R_CRIS_16_GOTPLT:
2330 case R_CRIS_32_GOTPLT:
2331 if (dynobj == NULL)
2332 {
2333 elf_hash_table (info)->dynobj = dynobj = abfd;
2334
2335 /* Create the .got section, so we can assume it's always
2336 present whenever there's a dynobj. */
2337 if (!_bfd_elf_create_got_section (dynobj, info))
2338 return false;
2339 }
2340 break;
2341
2342 default:
2343 break;
2344 }
2345
2346 /* Some relocs require a global offset table (but perhaps not a
2347 specific GOT entry). */
4d96d128 2348 switch (r_type)
915e5146 2349 {
44aa49bb
HPN		 2350 /* For R_CRIS_16_GOTPLT and R_CRIS_32_GOTPLT, we need a GOT
2351 entry only for local symbols. Unfortunately, we don't know
2352 until later on if there's a version script that forces the
2353 symbol local. We must have the .rela.got section in place
2354 before we know if the symbol looks global now, so we need
2355 to treat the reloc just like for R_CRIS_16_GOT and
2356 R_CRIS_32_GOT. */
2357 case R_CRIS_16_GOTPLT:
2358 case R_CRIS_32_GOTPLT:
915e5146
HPN		 2359 case R_CRIS_16_GOT:
2360 case R_CRIS_32_GOT:
44aa49bb
HPN		 2361 if (srelgot == NULL
2362 && (h != NULL || info->shared))
2363 {
2364 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2365 if (srelgot == NULL)
2366 {
2367 srelgot = bfd_make_section (dynobj, ".rela.got");
2368 if (srelgot == NULL
2369 || !bfd_set_section_flags (dynobj, srelgot,
2370 (SEC_ALLOC
2371 | SEC_LOAD
2372 | SEC_HAS_CONTENTS
2373 | SEC_IN_MEMORY
2374 | SEC_LINKER_CREATED
2375 | SEC_READONLY))
2376 || !bfd_set_section_alignment (dynobj, srelgot, 2))
2377 return false;
2378 }
2379 }
2380 /* Fall through. */
2381
915e5146
HPN		 2382 case R_CRIS_32_GOTREL:
2383 case R_CRIS_32_PLT_GOTREL:
2384 if (sgot == NULL)
2385 sgot = bfd_get_section_by_name (dynobj, ".got");
2386
2387 if (local_got_refcounts == NULL)
2388 {
dc810e39 2389 bfd_size_type amt;
915e5146
HPN		 2390
2391 /* We use index local_got_refcounts[-1] to count all
2392 GOT-relative relocations that do not have explicit
2393 GOT entries. */
dc810e39
AM		 2394 amt = symtab_hdr->sh_info + 1;
2395 amt *= sizeof (bfd_signed_vma);
51b64d56 2396 local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, amt));
915e5146
HPN		 2397 if (local_got_refcounts == NULL)
2398 return false;
915e5146
HPN		 2399
2400 local_got_refcounts++;
2401 elf_local_got_refcounts (abfd) = local_got_refcounts;
2402 }
2403 break;
2404
2405 default:
2406 break;
2407 }
2408
4d96d128 2409 switch (r_type)
06c15ad7 2410 {
915e5146
HPN		 2411 case R_CRIS_16_GOTPLT:
2412 case R_CRIS_32_GOTPLT:
2413 /* Mark that we need a GOT entry if the PLT entry (and its GOT
2414 entry) is eliminated. We can only do this for a non-local
2415 symbol. */
2416 if (h != NULL)
2417 {
2418 ((struct elf_cris_link_hash_entry *) h)->gotplt_refcount++;
2419 goto handle_gotplt_reloc;
2420 }
2421 /* If h is NULL then this is a local symbol, and we must make a
2422 GOT entry for it, so handle it like a GOT reloc. */
2423 /* Fall through. */
2424
2425 case R_CRIS_16_GOT:
2426 case R_CRIS_32_GOT:
2427 /* This symbol requires a global offset table entry. */
915e5146
HPN		 2428 if (h != NULL)
2429 {
51b64d56 2430 if (h->got.refcount == 0)
915e5146 2431 {
915e5146
HPN		 2432 /* Make sure this symbol is output as a dynamic symbol. */
2433 if (h->dynindx == -1)
2434 {
2435 if (!bfd_elf32_link_record_dynamic_symbol (info, h))
2436 return false;
2437 }
2438
2439 /* Allocate space in the .got section. */
2440 sgot->_raw_size += 4;
2441 /* Allocate relocation space. */
2442 srelgot->_raw_size += sizeof (Elf32_External_Rela);
2443 }
51b64d56 2444 h->got.refcount++;
915e5146
HPN		 2445 }
2446 else
2447 {
2448 /* This is a global offset table entry for a local symbol. */
51b64d56 2449 if (local_got_refcounts[r_symndx] == 0)
915e5146 2450 {
915e5146
HPN		 2451 sgot->_raw_size += 4;
2452 if (info->shared)
2453 {
2454 /* If we are generating a shared object, we need to
2455 output a R_CRIS_RELATIVE reloc so that the dynamic
2456 linker can adjust this GOT entry. */
2457 srelgot->_raw_size += sizeof (Elf32_External_Rela);
2458 }
2459 }
51b64d56 2460 local_got_refcounts[r_symndx]++;
915e5146
HPN		 2461 }
2462 break;
2463
2464 case R_CRIS_32_GOTREL:
2465 /* This reference requires a global offset table.
2466 FIXME: The actual refcount isn't used currently; the .got
2467 section can't be removed if there were any references in the
2468 input. */
2469 local_got_refcounts[-1]++;
2470 break;
2471
2472 handle_gotplt_reloc:
2473
2474 case R_CRIS_32_PLT_GOTREL:
2475 /* This reference requires a global offset table. */
2476 local_got_refcounts[-1]++;
2477 /* Fall through. */
2478
2479 case R_CRIS_32_PLT_PCREL:
2480 /* This symbol requires a procedure linkage table entry. We
2481 actually build the entry in adjust_dynamic_symbol,
2482 because this might be a case of linking PIC code which is
2483 never referenced by a dynamic object, in which case we
2484 don't need to generate a procedure linkage table entry
2485 after all. */
2486
2487 /* If this is a local symbol, we resolve it directly without
2488 creating a procedure linkage table entry. */
2489 if (h == NULL)
2490 continue;
2491
2492 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
51b64d56 2493 h->plt.refcount++;
915e5146
HPN		 2494 break;
2495
2496 case R_CRIS_8:
2497 case R_CRIS_16:
2498 case R_CRIS_32:
2499 /* Let's help debug shared library creation. Any of these
2500 relocs can be used in shared libs, but pages containing them
2501 cannot be shared. Don't warn for sections we don't care
2502 about, such as debug sections or non-constant sections. We
2503 can't help tables of (global) function pointers, for example,
2504 though they must be emitted in a data section to avoid having
2505 impure text sections. */
2506 if (info->shared
2507 && (sec->flags & SEC_ALLOC) != 0
2508 && (sec->flags & SEC_READONLY) != 0)
2509 {
2510 /* FIXME: How do we make this optionally a warning only? */
8f615d07
AM		 2511 (*_bfd_error_handler)
2512 (_("%s, section %s:\n relocation %s should not be used in a shared object; recompile with -fPIC"),
2513 bfd_archive_filename (abfd),
2514 sec->name,
2515 cris_elf_howto_table[r_type].name);
915e5146
HPN		 2516 }
2517 /* Fall through. */
2518
2519 case R_CRIS_8_PCREL:
2520 case R_CRIS_16_PCREL:
2521 case R_CRIS_32_PCREL:
2522 if (h != NULL)
2523 {
2524 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
2525
2526 /* Make sure a plt entry is created for this symbol if it
2527 turns out to be a function defined by a dynamic object. */
51b64d56 2528 h->plt.refcount++;
915e5146
HPN		 2529 }
2530
2531 /* If we are creating a shared library and this is not a local
2532 symbol, we need to copy the reloc into the shared library.
2533 However when linking with -Bsymbolic and this is a global
2534 symbol which is defined in an object we are including in the
2535 link (i.e., DEF_REGULAR is set), then we can resolve the
2536 reloc directly. At this point we have not seen all the input
2537 files, so it is possible that DEF_REGULAR is not set now but
2538 will be set later (it is never cleared). In case of a weak
2539 definition, DEF_REGULAR may be cleared later by a strong
2540 definition in a shared library. We account for that
2541 possibility below by storing information in the relocs_copied
2542 field of the hash table entry. A similar situation occurs
2543 when creating shared libraries and symbol visibility changes
2544 render the symbol local. */
2545
2546 /* No need to do anything if we're not creating a shared object. */
2547 if (! info->shared)
2548 break;
2549
2550 /* We don't need to handle relocs into sections not going into
2551 the "real" output. */
2552 if ((sec->flags & SEC_ALLOC) == 0)
2553 break;
2554
2555 /* We can only eliminate PC-relative relocs. */
2556 if (r_type == R_CRIS_8_PCREL
2557 || r_type == R_CRIS_16_PCREL
2558 || r_type == R_CRIS_32_PCREL)
2559 {
2560 /* If the symbol is local, then we can eliminate the reloc. */
2561 if (h == NULL)
2562 break;
2563
2564 /* If this is with -Bsymbolic and the symbol isn't weak, and
2565 is defined by an ordinary object (the ones we include in
2566 this shared library) then we can also eliminate the
2567 reloc. See comment above for more eliminable cases which
2568 we can't identify at this time. */
2569 if (info->symbolic
2570 && h->root.type != bfd_link_hash_defweak
2571 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0)
2572 break;
2573 }
2574
2575 /* We create a reloc section in dynobj and make room for this
2576 reloc. */
2577 if (sreloc == NULL)
2578 {
2579 const char *name;
2580
2581 name = (bfd_elf_string_from_elf_section
2582 (abfd,
2583 elf_elfheader (abfd)->e_shstrndx,
2584 elf_section_data (sec)->rel_hdr.sh_name));
2585 if (name == NULL)
2586 return false;
2587
2588 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2589 && strcmp (bfd_get_section_name (abfd, sec),
2590 name + 5) == 0);
2591
2592 sreloc = bfd_get_section_by_name (dynobj, name);
2593 if (sreloc == NULL)
2594 {
2595 sreloc = bfd_make_section (dynobj, name);
2596 if (sreloc == NULL
2597 || !bfd_set_section_flags (dynobj, sreloc,
2598 (SEC_ALLOC
2599 | SEC_LOAD
2600 | SEC_HAS_CONTENTS
2601 | SEC_IN_MEMORY
2602 | SEC_LINKER_CREATED
2603 | SEC_READONLY))
2604 || !bfd_set_section_alignment (dynobj, sreloc, 2))
2605 return false;
2606 }
99e4ae17
AJ		 2607 if (sec->flags & SEC_READONLY)
2608 info->flags |= DF_TEXTREL;
915e5146
HPN		 2609 }
2610
2611 sreloc->_raw_size += sizeof (Elf32_External_Rela);
2612
2613 /* If we are linking with -Bsymbolic, we count the number of PC
2614 relative relocations we have entered for this symbol, so that
2615 we can discard them again if the symbol is later defined by a
2616 regular object. We know that h is really a pointer to an
2617 elf_cris_link_hash_entry. */
4d96d128
HPN		 2618 if ((r_type == R_CRIS_8_PCREL
2619 || r_type == R_CRIS_16_PCREL
2620 || r_type == R_CRIS_32_PCREL)
915e5146
HPN		 2621 && info->symbolic)
2622 {
2623 struct elf_cris_link_hash_entry *eh;
2624 struct elf_cris_pcrel_relocs_copied *p;
2625
2626 eh = (struct elf_cris_link_hash_entry *) h;
2627
2628 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2629 if (p->section == sreloc)
2630 break;
2631
2632 if (p == NULL)
2633 {
2634 p = ((struct elf_cris_pcrel_relocs_copied *)
dc810e39 2635 bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
915e5146
HPN		 2636 if (p == NULL)
2637 return false;
2638 p->next = eh->pcrel_relocs_copied;
2639 eh->pcrel_relocs_copied = p;
2640 p->section = sreloc;
2641 p->count = 0;
2642 }
2643
2644 ++p->count;
2645 }
2646 break;
2647
06c15ad7
HPN		 2648 /* This relocation describes the C++ object vtable hierarchy.
2649 Reconstruct it for later use during GC. */
2650 case R_CRIS_GNU_VTINHERIT:
2651 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2652 return false;
2653 break;
a7c10850 2654
06c15ad7
HPN		 2655 /* This relocation describes which C++ vtable entries are actually
2656 used. Record for later use during GC. */
2657 case R_CRIS_GNU_VTENTRY:
2658 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2659 return false;
2660 break;
4d96d128
HPN		 2661
2662 default:
2663 /* Other relocs do not appear here. */
2664 bfd_set_error (bfd_error_bad_value);
2665 return false;
06c15ad7
HPN		 2666 }
2667 }
a7c10850 2668
06c15ad7
HPN		 2669 return true;
2670}
4da81684 2671
915e5146
HPN		 2672/* Set the sizes of the dynamic sections. */
2673
2674static boolean
2675elf_cris_size_dynamic_sections (output_bfd, info)
99e4ae17 2676 bfd *output_bfd ATTRIBUTE_UNUSED;
915e5146
HPN		 2677 struct bfd_link_info *info;
2678{
2679 bfd *dynobj;
2680 asection *s;
2681 boolean plt;
2682 boolean relocs;
915e5146
HPN		 2683
2684 dynobj = elf_hash_table (info)->dynobj;
2685 BFD_ASSERT (dynobj != NULL);
2686
2687 if (elf_hash_table (info)->dynamic_sections_created)
2688 {
2689 /* Set the contents of the .interp section to the interpreter. */
2690 if (!info->shared)
2691 {
2692 s = bfd_get_section_by_name (dynobj, ".interp");
2693 BFD_ASSERT (s != NULL);
2694 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
2695 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2696 }
2697 }
2698 else
2699 {
2700 /* Adjust all expected GOTPLT uses to use a GOT entry instead. */
2701 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
2702 elf_cris_adjust_gotplt_to_got,
2703 (PTR) info);
2704
2705 /* We may have created entries in the .rela.got section.
2706 However, if we are not creating the dynamic sections, we will
2707 not actually use these entries. Reset the size of .rela.got,
2708 which will cause it to get stripped from the output file
2709 below. */
2710 s = bfd_get_section_by_name (dynobj, ".rela.got");
2711 if (s != NULL)
2712 s->_raw_size = 0;
2713 }
2714
2715 /* If this is a -Bsymbolic shared link, then we need to discard all PC
2716 relative relocs against symbols defined in a regular object. We
2717 allocated space for them in the check_relocs routine, but we will not
2718 fill them in in the relocate_section routine. We also discard space
2719 for relocs that have become for local symbols due to symbol
4d96d128
HPN		 2720 visibility changes. For programs, we discard space for relocs for
2721 symbols not referenced by any dynamic object. */
915e5146
HPN		 2722 if (info->shared)
2723 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
4d96d128
HPN		 2724 elf_cris_discard_excess_dso_dynamics,
2725 (PTR) info);
2726 else
2727 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
2728 elf_cris_discard_excess_program_dynamics,
915e5146
HPN		 2729 (PTR) info);
2730
2731 /* The check_relocs and adjust_dynamic_symbol entry points have
2732 determined the sizes of the various dynamic sections. Allocate
2733 memory for them. */
2734 plt = false;
2735 relocs = false;
915e5146
HPN		 2736 for (s = dynobj->sections; s != NULL; s = s->next)
2737 {
2738 const char *name;
2739 boolean strip;
2740
2741 if ((s->flags & SEC_LINKER_CREATED) == 0)
2742 continue;
2743
2744 /* It's OK to base decisions on the section name, because none
2745 of the dynobj section names depend upon the input files. */
2746 name = bfd_get_section_name (dynobj, s);
2747
2748 strip = false;
2749
2750 if (strcmp (name, ".plt") == 0)
2751 {
2752 if (s->_raw_size == 0)
2753 {
2754 /* Strip this section if we don't need it; see the
2755 comment below. */
2756 strip = true;
2757 }
2758 else
2759 {
2760 /* Remember whether there is a PLT. */
2761 plt = true;
2762 }
2763 }
2764 else if (strncmp (name, ".rela", 5) == 0)
2765 {
2766 if (s->_raw_size == 0)
2767 {
2768 /* If we don't need this section, strip it from the
2769 output file. This is mostly to handle .rela.bss and
2770 .rela.plt. We must create both sections in
2771 create_dynamic_sections, because they must be created
2772 before the linker maps input sections to output
2773 sections. The linker does that before
2774 adjust_dynamic_symbol is called, and it is that
2775 function which decides whether anything needs to go
2776 into these sections. */
2777 strip = true;
2778 }
2779 else
2780 {
915e5146
HPN		 2781 /* Remember whether there are any reloc sections other
2782 than .rela.plt. */
2783 if (strcmp (name, ".rela.plt") != 0)
915e5146
HPN		 2784 relocs = true;
2785
915e5146
HPN		 2786 /* We use the reloc_count field as a counter if we need
2787 to copy relocs into the output file. */
2788 s->reloc_count = 0;
2789 }
2790 }
2791 else if (strncmp (name, ".got", 4) != 0)
2792 {
2793 /* It's not one of our sections, so don't allocate space. */
2794 continue;
2795 }
2796
2797 if (strip)
2798 {
2799 _bfd_strip_section_from_output (info, s);
2800 continue;
2801 }
2802
2803 /* Allocate memory for the section contents. We use bfd_zalloc here
2804 in case unused entries are not reclaimed before the section's
2805 contents are written out. This should not happen, but this way
2806 if it does, we will not write out garbage. For reloc sections,
2807 this will make entries have the type R_CRIS_NONE. */
2808 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
2809 if (s->contents == NULL && s->_raw_size != 0)
2810 return false;
2811 }
2812
2813 if (elf_hash_table (info)->dynamic_sections_created)
2814 {
2815 /* Add some entries to the .dynamic section. We fill in the
2816 values later, in elf_cris_finish_dynamic_sections, but we
2817 must add the entries now so that we get the correct size for
2818 the .dynamic section. The DT_DEBUG entry is filled in by the
2819 dynamic linker and used by the debugger. */
dc810e39
AM		 2820#define add_dynamic_entry(TAG, VAL) \
2821 bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
2822
915e5146
HPN		 2823 if (!info->shared)
2824 {
dc810e39 2825 if (!add_dynamic_entry (DT_DEBUG, 0))
915e5146
HPN		 2826 return false;
2827 }
2828
2829 if (plt)
2830 {
dc810e39
AM		 2831 if (!add_dynamic_entry (DT_PLTGOT, 0)
2832 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2833 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2834 || !add_dynamic_entry (DT_JMPREL, 0))
915e5146
HPN		 2835 return false;
2836 }
2837
2838 if (relocs)
2839 {
dc810e39
AM		 2840 if (!add_dynamic_entry (DT_RELA, 0)
2841 || !add_dynamic_entry (DT_RELASZ, 0)
2842 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
915e5146
HPN		 2843 return false;
2844 }
2845
99e4ae17 2846 if ((info->flags & DF_TEXTREL) != 0)
915e5146 2847 {
dc810e39 2848 if (!add_dynamic_entry (DT_TEXTREL, 0))
915e5146
HPN		 2849 return false;
2850 info->flags |= DF_TEXTREL;
2851 }
2852 }
dc810e39 2853#undef add_dynamic_entry
915e5146
HPN		 2854
2855 return true;
2856}
2857
2858/* This function is called via elf_cris_link_hash_traverse if we are
2859 creating a shared object. In the -Bsymbolic case, it discards the
2860 space allocated to copy PC relative relocs against symbols which
2861 are defined in regular objects. For the normal non-symbolic case,
2862 we also discard space for relocs that have become local due to
2863 symbol visibility changes. We allocated space for them in the
2864 check_relocs routine, but we won't fill them in in the
2865 relocate_section routine. */
2866
2867static boolean
4d96d128 2868elf_cris_discard_excess_dso_dynamics (h, inf)
915e5146
HPN		 2869 struct elf_cris_link_hash_entry *h;
2870 PTR inf;
2871{
2872 struct elf_cris_pcrel_relocs_copied *s;
2873 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2874
e92d460e
AM		 2875 if (h->root.root.type == bfd_link_hash_warning)
2876 h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
2877
915e5146
HPN		 2878 /* If a symbol has been forced local or we have found a regular
2879 definition for the symbolic link case, then we won't be needing
2880 any relocs. */
2881 if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
2882 && ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
2883 || info->symbolic))
2884 {
2885 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
4d96d128
HPN		 2886 s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela);
2887 }
2888
2889 return true;
2890}
2891
2892/* This function is called via elf_cris_link_hash_traverse if we are *not*
2893 creating a shared object. We discard space for relocs for symbols put
2894 in the .got, but which we found we do not have to resolve at run-time. */
2895
2896static boolean
2897elf_cris_discard_excess_program_dynamics (h, inf)
2898 struct elf_cris_link_hash_entry *h;
2899 PTR inf;
2900{
2901 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2902
e92d460e
AM		 2903 if (h->root.root.type == bfd_link_hash_warning)
2904 h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
2905
4d96d128
HPN		 2906 /* If we're not creating a shared library and have a symbol which is
2907 referred to by .got references, but the symbol is defined locally,
2908 (or rather, not referred to by a DSO and not defined by a DSO) then
2909 lose the reloc for the .got (don't allocate room for it). */
2910 if ((h->root.elf_link_hash_flags
2911 & (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_DEF_DYNAMIC)) == 0)
2912 {
2913 if (h->root.got.refcount > 0
2914 /* The size of this section is only valid and in sync with the
2915 various reference counts if we do dynamic; don't decrement it
2916 otherwise. */
2917 && elf_hash_table (info)->dynamic_sections_created)
2918 {
2919 bfd *dynobj = elf_hash_table (info)->dynobj;
2920 asection *srelgot;
2921
2922 BFD_ASSERT (dynobj != NULL);
99c79b2e 2923
4d96d128
HPN		 2924 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2925
2926 BFD_ASSERT (srelgot != NULL);
2927
2928 srelgot->_raw_size -= sizeof (Elf32_External_Rela);
2929 }
2930
2931 /* If the locally-defined symbol isn't used by a DSO, then we don't
2932 have to export it as a dynamic symbol. This was already done for
2933 functions; doing this for all symbols would presumably not
e5dfef09
HPN		 2934 introduce new problems. Of course we don't do this if we're
2935 exporting all dynamic symbols. */
2936 if (! info->export_dynamic)
2937 {
2938 h->root.dynindx = -1;
2939 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2940 h->root.dynstr_index);
2941 }
915e5146
HPN		 2942 }
2943
2944 return true;
2945}
2946
2947/* Reject a file depending on presence and expectation of prefixed
2948 underscores on symbols. */
4da81684
HPN		 2949
2950static boolean
2951cris_elf_object_p (abfd)
2952 bfd *abfd;
2953{
2954 if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
2955 return (bfd_get_symbol_leading_char (abfd) == '_');
2956 else
2957 return (bfd_get_symbol_leading_char (abfd) == 0);
2958}
2959
2960/* Mark presence or absence of leading underscore. */
2961
2962static void
2963cris_elf_final_write_processing (abfd, linker)
2964 bfd *abfd;
2965 boolean linker ATTRIBUTE_UNUSED;
2966{
2967 if (bfd_get_symbol_leading_char (abfd) == '_')
2968 elf_elfheader (abfd)->e_flags |= EF_CRIS_UNDERSCORE;
2969 else
2970 elf_elfheader (abfd)->e_flags &= ~EF_CRIS_UNDERSCORE;
2971}
2972
2973/* Display the flags field. */
2974
2975static boolean
2976cris_elf_print_private_bfd_data (abfd, ptr)
2977 bfd *abfd;
2978 PTR ptr;
2979{
2980 FILE *file = (FILE *) ptr;
2981
2982 BFD_ASSERT (abfd != NULL && ptr != NULL)
2983
2984 _bfd_elf_print_private_bfd_data (abfd, ptr);
2985
2986 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
2987
2988 if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
2989 fprintf (file, _(" [symbols have a _ prefix]"));
2990
2991 fputc ('\n', file);
2992 return true;
2993}
2994
2995/* Don't mix files with and without a leading underscore. */
2996
2997static boolean
2998cris_elf_merge_private_bfd_data (ibfd, obfd)
2999 bfd *ibfd;
3000 bfd *obfd;
3001{
3002 flagword old_flags, new_flags;
3003
82e51918 3004 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4da81684
HPN		 3005 return false;
3006
3007 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3008 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3009 return true;
3010
3011 if (! elf_flags_init (obfd))
3012 {
3013 /* This happens when ld starts out with a 'blank' output file. */
3014 elf_flags_init (obfd) = true;
3015
3016 /* Set flags according to current bfd_target. */
3017 cris_elf_final_write_processing (obfd, false);
3018 }
3019
3020 old_flags = elf_elfheader (obfd)->e_flags;
3021 new_flags = elf_elfheader (ibfd)->e_flags;
3022
3023 /* Is this good or bad? We'll follow with other excluding flags. */
3024 if ((old_flags & EF_CRIS_UNDERSCORE) != (new_flags & EF_CRIS_UNDERSCORE))
3025 {
3026 (*_bfd_error_handler)
3027 ((new_flags & EF_CRIS_UNDERSCORE)
3028 ? _("%s: uses _-prefixed symbols, but writing file with non-prefixed symbols")
3029 : _("%s: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
8f615d07 3030 bfd_archive_filename (ibfd));
4da81684
HPN		 3031 bfd_set_error (bfd_error_bad_value);
3032 return false;
3033 }
3034
3035 return true;
3036}
99e4ae17
AJ		 3037
3038
3039static enum elf_reloc_type_class
f51e552e
AM		 3040elf_cris_reloc_type_class (rela)
3041 const Elf_Internal_Rela *rela;
99e4ae17 3042{
f51e552e 3043 switch ((int) ELF32_R_TYPE (rela->r_info))
99e4ae17
AJ		 3044 {
3045 case R_CRIS_RELATIVE:
3046 return reloc_class_relative;
3047 case R_CRIS_JUMP_SLOT:
3048 return reloc_class_plt;
3049 case R_CRIS_COPY:
3050 return reloc_class_copy;
3051 default:
3052 return reloc_class_normal;
3053 }
3054}
06c15ad7
HPN		 3055\f
3056#define ELF_ARCH bfd_arch_cris
3057#define ELF_MACHINE_CODE EM_CRIS
3058#define ELF_MAXPAGESIZE 0x2000
3059
3060#define TARGET_LITTLE_SYM bfd_elf32_cris_vec
3061#define TARGET_LITTLE_NAME "elf32-cris"
4da81684 3062#define elf_symbol_leading_char 0
06c15ad7
HPN		 3063
3064#define elf_info_to_howto_rel NULL
3065#define elf_info_to_howto cris_info_to_howto_rela
3066#define elf_backend_relocate_section cris_elf_relocate_section
3067#define elf_backend_gc_mark_hook cris_elf_gc_mark_hook
3068#define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook
3069#define elf_backend_check_relocs cris_elf_check_relocs
72209a1f
HPN		 3070#define elf_backend_grok_prstatus cris_elf_grok_prstatus
3071#define elf_backend_grok_psinfo cris_elf_grok_psinfo
06c15ad7
HPN		 3072
3073#define elf_backend_can_gc_sections 1
51b64d56 3074#define elf_backend_can_refcount 1
06c15ad7 3075
4da81684
HPN		 3076#define elf_backend_object_p cris_elf_object_p
3077#define elf_backend_final_write_processing \
3078 cris_elf_final_write_processing
3079#define bfd_elf32_bfd_print_private_bfd_data \
3080 cris_elf_print_private_bfd_data
3081#define bfd_elf32_bfd_merge_private_bfd_data \
3082 cris_elf_merge_private_bfd_data
3083
06c15ad7
HPN		 3084#define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
3085
915e5146
HPN		 3086#define bfd_elf32_bfd_link_hash_table_create \
3087 elf_cris_link_hash_table_create
3088#define elf_backend_adjust_dynamic_symbol \
3089 elf_cris_adjust_dynamic_symbol
3090#define elf_backend_size_dynamic_sections \
3091 elf_cris_size_dynamic_sections
3092#define elf_backend_finish_dynamic_symbol \
3093 elf_cris_finish_dynamic_symbol
3094#define elf_backend_finish_dynamic_sections \
3095 elf_cris_finish_dynamic_sections
3096#define elf_backend_create_dynamic_sections \
3097 _bfd_elf_create_dynamic_sections
3098#define bfd_elf32_bfd_final_link \
3099 _bfd_elf32_gc_common_final_link
3100#define elf_backend_hide_symbol elf_cris_hide_symbol
99e4ae17 3101#define elf_backend_reloc_type_class elf_cris_reloc_type_class
915e5146
HPN		 3102
3103#define elf_backend_want_got_plt 1
3104#define elf_backend_plt_readonly 1
3105#define elf_backend_want_plt_sym 0
3106#define elf_backend_got_header_size 12
3107#define elf_backend_plt_header_size PLT_ENTRY_SIZE
3108
06c15ad7
HPN		 3109/* Later, we my want to optimize RELA entries into REL entries for dynamic
3110 linking and libraries (if it's a win of any significance). Until then,
3111 take the easy route. */
3112#define elf_backend_may_use_rel_p 0
3113#define elf_backend_may_use_rela_p 1
3114
3115#include "elf32-target.h"
4da81684
HPN		 3116
3117#define INCLUDED_TARGET_FILE
3118
3119#undef TARGET_LITTLE_SYM
3120#undef TARGET_LITTLE_NAME
3121#undef elf_symbol_leading_char
3122
3123#define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
3124#define TARGET_LITTLE_NAME "elf32-us-cris"
3125#define elf_symbol_leading_char '_'
3126
3127#include "elf32-target.h"
GDB Binutils - Deliverables
This page took 0.25096 seconds and 4 git commands to generate.