]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blame - bfd/elf32-cris.c
2006-09-16 Paul Brook <paul@codesourcery.com>
[thirdparty/binutils-gdb.git] / bfd / elf32-cris.c
CommitLineData
06c15ad7 1/* CRIS-specific support for 32-bit ELF.
66eb6687 2 Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006
3eb128b2 3 Free Software Foundation, Inc.
06c15ad7
HPN
4 Contributed by Axis Communications AB.
5 Written by Hans-Peter Nilsson, based on elf32-fr30.c
915e5146 6 PIC and shlib bits based primarily on elf32-m68k.c and elf32-i386.c.
06c15ad7 7
ae9a127f 8 This file is part of BFD, the Binary File Descriptor library.
06c15ad7 9
ae9a127f
NC
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
06c15ad7 14
ae9a127f
NC
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
06c15ad7 19
ae9a127f
NC
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
3e110533 22 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
06c15ad7
HPN
23
24#include "bfd.h"
25#include "sysdep.h"
26#include "libbfd.h"
27#include "elf-bfd.h"
28#include "elf/cris.h"
29
30/* Forward declarations. */
31static reloc_howto_type * cris_reloc_type_lookup
32 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
33
a7c10850 34static void cris_info_to_howto_rela
947216bf 35 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
06c15ad7 36
bac23f82
HPN
37static bfd_reloc_status_type cris_elf_pcrel_reloc
38 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
39
b34976b6 40static bfd_boolean cris_elf_grok_prstatus
72209a1f
HPN
41 PARAMS ((bfd *abfd, Elf_Internal_Note *note));
42
b34976b6 43static bfd_boolean cris_elf_grok_psinfo
72209a1f
HPN
44 PARAMS ((bfd *abfd, Elf_Internal_Note *note));
45
b34976b6 46static bfd_boolean cris_elf_relocate_section
06c15ad7
HPN
47 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
48 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
49
50static bfd_reloc_status_type cris_final_link_relocate
51 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
52 Elf_Internal_Rela *, bfd_vma));
53
b34976b6 54static bfd_boolean cris_elf_gc_sweep_hook
06c15ad7
HPN
55 PARAMS ((bfd *, struct bfd_link_info *, asection *,
56 const Elf_Internal_Rela *));
57
58static asection * cris_elf_gc_mark_hook
1e2f5b6e 59 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
06c15ad7
HPN
60 struct elf_link_hash_entry *, Elf_Internal_Sym *));
61
b34976b6 62static bfd_boolean cris_elf_object_p PARAMS ((bfd *));
4da81684 63
b34976b6 64static void cris_elf_final_write_processing PARAMS ((bfd *, bfd_boolean));
4da81684 65
bac23f82
HPN
66static bfd_boolean cris_elf_set_mach_from_flags
67 PARAMS ((bfd *, unsigned long int));
68
b34976b6 69static bfd_boolean cris_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
4da81684 70
b34976b6 71static bfd_boolean cris_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
bac23f82 72static bfd_boolean cris_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
4da81684 73
915e5146 74struct elf_cris_link_hash_entry;
b34976b6 75static bfd_boolean elf_cris_discard_excess_dso_dynamics
4d96d128 76 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
b34976b6 77static bfd_boolean elf_cris_discard_excess_program_dynamics
915e5146 78 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
b34976b6 79static bfd_boolean elf_cris_adjust_gotplt_to_got
915e5146 80 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
b34976b6 81static bfd_boolean elf_cris_try_fold_plt_to_got
915e5146
HPN
82 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
83static struct bfd_hash_entry *elf_cris_link_hash_newfunc
84 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
85static struct bfd_link_hash_table *elf_cris_link_hash_table_create
86 PARAMS ((bfd *));
b34976b6 87static bfd_boolean elf_cris_adjust_dynamic_symbol
915e5146 88 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
b34976b6 89static bfd_boolean cris_elf_check_relocs
99c79b2e
AJ
90 PARAMS ((bfd *, struct bfd_link_info *, asection *,
91 const Elf_Internal_Rela *));
92
b34976b6 93static bfd_boolean elf_cris_size_dynamic_sections
915e5146 94 PARAMS ((bfd *, struct bfd_link_info *));
b34976b6 95static bfd_boolean elf_cris_finish_dynamic_symbol
915e5146
HPN
96 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
97 Elf_Internal_Sym *));
b34976b6 98static bfd_boolean elf_cris_finish_dynamic_sections
915e5146
HPN
99 PARAMS ((bfd *, struct bfd_link_info *));
100static void elf_cris_hide_symbol
b34976b6 101 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean));
99e4ae17 102static enum elf_reloc_type_class elf_cris_reloc_type_class
f51e552e 103 PARAMS ((const Elf_Internal_Rela *));
915e5146 104
06c15ad7
HPN
105static reloc_howto_type cris_elf_howto_table [] =
106{
107 /* This reloc does nothing. */
108 HOWTO (R_CRIS_NONE, /* type */
109 0, /* rightshift */
110 2, /* size (0 = byte, 1 = short, 2 = long) */
111 32, /* bitsize */
b34976b6 112 FALSE, /* pc_relative */
06c15ad7
HPN
113 0, /* bitpos */
114 complain_overflow_bitfield, /* complain_on_overflow */
115 bfd_elf_generic_reloc, /* special_function */
116 "R_CRIS_NONE", /* name */
b34976b6 117 FALSE, /* partial_inplace */
06c15ad7
HPN
118 0, /* src_mask */
119 0, /* dst_mask */
b34976b6 120 FALSE), /* pcrel_offset */
06c15ad7
HPN
121
122 /* An 8 bit absolute relocation. */
123 HOWTO (R_CRIS_8, /* type */
124 0, /* rightshift */
125 0, /* size (0 = byte, 1 = short, 2 = long) */
126 8, /* bitsize */
b34976b6 127 FALSE, /* pc_relative */
06c15ad7
HPN
128 0, /* bitpos */
129 complain_overflow_bitfield, /* complain_on_overflow */
130 bfd_elf_generic_reloc, /* special_function */
131 "R_CRIS_8", /* name */
b34976b6 132 FALSE, /* partial_inplace */
06c15ad7
HPN
133 0x0000, /* src_mask */
134 0x00ff, /* dst_mask */
b34976b6 135 FALSE), /* pcrel_offset */
06c15ad7
HPN
136
137 /* A 16 bit absolute relocation. */
138 HOWTO (R_CRIS_16, /* type */
139 0, /* rightshift */
140 1, /* size (0 = byte, 1 = short, 2 = long) */
141 16, /* bitsize */
b34976b6 142 FALSE, /* pc_relative */
06c15ad7
HPN
143 0, /* bitpos */
144 complain_overflow_bitfield, /* complain_on_overflow */
145 bfd_elf_generic_reloc, /* special_function */
146 "R_CRIS_16", /* name */
b34976b6 147 FALSE, /* partial_inplace */
06c15ad7
HPN
148 0x00000000, /* src_mask */
149 0x0000ffff, /* dst_mask */
b34976b6 150 FALSE), /* pcrel_offset */
06c15ad7
HPN
151
152 /* A 32 bit absolute relocation. */
153 HOWTO (R_CRIS_32, /* type */
154 0, /* rightshift */
155 2, /* size (0 = byte, 1 = short, 2 = long) */
156 32, /* bitsize */
b34976b6 157 FALSE, /* pc_relative */
06c15ad7 158 0, /* bitpos */
b2efcd36
HPN
159 /* We don't want overflow complaints for 64-bit vma builds
160 for e.g. sym+0x40000000 (or actually sym-0xc0000000 in
161 32-bit ELF) where sym=0xc0001234.
162 Don't do this for the PIC relocs, as we don't expect to
163 see them with large offsets. */
164 complain_overflow_dont, /* complain_on_overflow */
06c15ad7
HPN
165 bfd_elf_generic_reloc, /* special_function */
166 "R_CRIS_32", /* name */
b34976b6 167 FALSE, /* partial_inplace */
06c15ad7
HPN
168 0x00000000, /* src_mask */
169 0xffffffff, /* dst_mask */
b34976b6 170 FALSE), /* pcrel_offset */
06c15ad7 171
915e5146 172 /* An 8 bit PC-relative relocation. */
06c15ad7
HPN
173 HOWTO (R_CRIS_8_PCREL, /* type */
174 0, /* rightshift */
175 0, /* size (0 = byte, 1 = short, 2 = long) */
176 8, /* bitsize */
b34976b6 177 TRUE, /* pc_relative */
06c15ad7
HPN
178 0, /* bitpos */
179 complain_overflow_bitfield, /* complain_on_overflow */
bac23f82 180 cris_elf_pcrel_reloc, /* special_function */
06c15ad7 181 "R_CRIS_8_PCREL", /* name */
b34976b6 182 FALSE, /* partial_inplace */
06c15ad7
HPN
183 0x0000, /* src_mask */
184 0x00ff, /* dst_mask */
b34976b6 185 TRUE), /* pcrel_offset */
06c15ad7 186
915e5146 187 /* A 16 bit PC-relative relocation. */
06c15ad7
HPN
188 HOWTO (R_CRIS_16_PCREL, /* type */
189 0, /* rightshift */
190 1, /* size (0 = byte, 1 = short, 2 = long) */
191 16, /* bitsize */
b34976b6 192 TRUE, /* pc_relative */
06c15ad7
HPN
193 0, /* bitpos */
194 complain_overflow_bitfield, /* complain_on_overflow */
bac23f82 195 cris_elf_pcrel_reloc, /* special_function */
44aa49bb 196 "R_CRIS_16_PCREL", /* name */
b34976b6 197 FALSE, /* partial_inplace */
06c15ad7
HPN
198 0x00000000, /* src_mask */
199 0x0000ffff, /* dst_mask */
b34976b6 200 TRUE), /* pcrel_offset */
06c15ad7 201
915e5146 202 /* A 32 bit PC-relative relocation. */
06c15ad7
HPN
203 HOWTO (R_CRIS_32_PCREL, /* type */
204 0, /* rightshift */
205 2, /* size (0 = byte, 1 = short, 2 = long) */
206 32, /* bitsize */
b34976b6 207 TRUE, /* pc_relative */
06c15ad7
HPN
208 0, /* bitpos */
209 complain_overflow_bitfield, /* complain_on_overflow */
bac23f82 210 cris_elf_pcrel_reloc, /* special_function */
44aa49bb 211 "R_CRIS_32_PCREL", /* name */
b34976b6 212 FALSE, /* partial_inplace */
06c15ad7
HPN
213 0x00000000, /* src_mask */
214 0xffffffff, /* dst_mask */
b34976b6 215 TRUE), /* pcrel_offset */
06c15ad7 216
915e5146
HPN
217 /* GNU extension to record C++ vtable hierarchy. */
218 HOWTO (R_CRIS_GNU_VTINHERIT, /* type */
06c15ad7
HPN
219 0, /* rightshift */
220 2, /* size (0 = byte, 1 = short, 2 = long) */
221 0, /* bitsize */
b34976b6 222 FALSE, /* pc_relative */
06c15ad7
HPN
223 0, /* bitpos */
224 complain_overflow_dont, /* complain_on_overflow */
225 NULL, /* special_function */
226 "R_CRIS_GNU_VTINHERIT", /* name */
b34976b6 227 FALSE, /* partial_inplace */
06c15ad7
HPN
228 0, /* src_mask */
229 0, /* dst_mask */
b34976b6 230 FALSE), /* pcrel_offset */
06c15ad7 231
915e5146
HPN
232 /* GNU extension to record C++ vtable member usage. */
233 HOWTO (R_CRIS_GNU_VTENTRY, /* type */
06c15ad7
HPN
234 0, /* rightshift */
235 2, /* size (0 = byte, 1 = short, 2 = long) */
236 0, /* bitsize */
b34976b6 237 FALSE, /* pc_relative */
06c15ad7
HPN
238 0, /* bitpos */
239 complain_overflow_dont, /* complain_on_overflow */
240 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
241 "R_CRIS_GNU_VTENTRY", /* name */
b34976b6 242 FALSE, /* partial_inplace */
06c15ad7
HPN
243 0, /* src_mask */
244 0, /* dst_mask */
b34976b6 245 FALSE), /* pcrel_offset */
915e5146
HPN
246
247 /* This is used only by the dynamic linker. The symbol should exist
248 both in the object being run and in some shared library. The
249 dynamic linker copies the data addressed by the symbol from the
250 shared library into the object, because the object being
251 run has to have the data at some particular address. */
252 HOWTO (R_CRIS_COPY, /* type */
253 0, /* rightshift */
254 2, /* size (0 = byte, 1 = short, 2 = long) */
255 32, /* bitsize */
b34976b6 256 FALSE, /* pc_relative */
915e5146
HPN
257 0, /* bitpos */
258 complain_overflow_bitfield, /* complain_on_overflow */
259 bfd_elf_generic_reloc, /* special_function */
260 "R_CRIS_COPY", /* name */
b34976b6 261 FALSE, /* partial_inplace */
915e5146
HPN
262 0, /* src_mask */
263 0, /* dst_mask */
b34976b6 264 FALSE), /* pcrel_offset */
915e5146
HPN
265
266 /* Like R_CRIS_32, but used when setting global offset table entries. */
267 HOWTO (R_CRIS_GLOB_DAT, /* type */
268 0, /* rightshift */
269 2, /* size (0 = byte, 1 = short, 2 = long) */
270 32, /* bitsize */
b34976b6 271 FALSE, /* pc_relative */
915e5146
HPN
272 0, /* bitpos */
273 complain_overflow_bitfield, /* complain_on_overflow */
274 bfd_elf_generic_reloc, /* special_function */
275 "R_CRIS_GLOB_DAT", /* name */
b34976b6 276 FALSE, /* partial_inplace */
915e5146
HPN
277 0, /* src_mask */
278 0xffffffff, /* dst_mask */
b34976b6 279 FALSE), /* pcrel_offset */
915e5146
HPN
280
281 /* Marks a procedure linkage table entry for a symbol. */
282 HOWTO (R_CRIS_JUMP_SLOT, /* type */
283 0, /* rightshift */
284 2, /* size (0 = byte, 1 = short, 2 = long) */
285 32, /* bitsize */
b34976b6 286 FALSE, /* pc_relative */
915e5146
HPN
287 0, /* bitpos */
288 complain_overflow_bitfield, /* complain_on_overflow */
289 bfd_elf_generic_reloc, /* special_function */
290 "R_CRIS_JUMP_SLOT", /* name */
b34976b6 291 FALSE, /* partial_inplace */
915e5146
HPN
292 0, /* src_mask */
293 0, /* dst_mask */
b34976b6 294 FALSE), /* pcrel_offset */
915e5146
HPN
295
296 /* Used only by the dynamic linker. When the object is run, this
297 longword is set to the load address of the object, plus the
298 addend. */
299 HOWTO (R_CRIS_RELATIVE, /* type */
300 0, /* rightshift */
301 2, /* size (0 = byte, 1 = short, 2 = long) */
302 32, /* bitsize */
b34976b6 303 FALSE, /* pc_relative */
915e5146
HPN
304 0, /* bitpos */
305 complain_overflow_bitfield, /* complain_on_overflow */
306 bfd_elf_generic_reloc, /* special_function */
307 "R_CRIS_RELATIVE", /* name */
b34976b6 308 FALSE, /* partial_inplace */
915e5146
HPN
309 0, /* src_mask */
310 0xffffffff, /* dst_mask */
b34976b6 311 FALSE), /* pcrel_offset */
915e5146
HPN
312
313 /* Like R_CRIS_32, but referring to the GOT table entry for the symbol. */
314 HOWTO (R_CRIS_16_GOT, /* type */
315 0, /* rightshift */
316 1, /* size (0 = byte, 1 = short, 2 = long) */
317 16, /* bitsize */
b34976b6 318 FALSE, /* pc_relative */
915e5146
HPN
319 0, /* bitpos */
320 complain_overflow_bitfield, /* complain_on_overflow */
321 bfd_elf_generic_reloc, /* special_function */
322 "R_CRIS_16_GOT", /* name */
b34976b6 323 FALSE, /* partial_inplace */
915e5146
HPN
324 0, /* src_mask */
325 0xffff, /* dst_mask */
b34976b6 326 FALSE), /* pcrel_offset */
915e5146
HPN
327
328 HOWTO (R_CRIS_32_GOT, /* type */
329 0, /* rightshift */
330 2, /* size (0 = byte, 1 = short, 2 = long) */
331 32, /* bitsize */
b34976b6 332 FALSE, /* pc_relative */
915e5146
HPN
333 0, /* bitpos */
334 complain_overflow_bitfield, /* complain_on_overflow */
335 bfd_elf_generic_reloc, /* special_function */
336 "R_CRIS_32_GOT", /* name */
b34976b6 337 FALSE, /* partial_inplace */
915e5146
HPN
338 0, /* src_mask */
339 0xffffffff, /* dst_mask */
b34976b6 340 FALSE), /* pcrel_offset */
915e5146
HPN
341
342 /* Like R_CRIS_32_GOT, but referring to (and requesting a) PLT part of
343 the GOT table for the symbol. */
344 HOWTO (R_CRIS_16_GOTPLT, /* type */
345 0, /* rightshift */
346 1, /* size (0 = byte, 1 = short, 2 = long) */
347 16, /* bitsize */
b34976b6 348 FALSE, /* pc_relative */
915e5146
HPN
349 0, /* bitpos */
350 complain_overflow_bitfield, /* complain_on_overflow */
351 bfd_elf_generic_reloc, /* special_function */
352 "R_CRIS_16_GOTPLT", /* name */
b34976b6 353 FALSE, /* partial_inplace */
915e5146
HPN
354 0, /* src_mask */
355 0xffff, /* dst_mask */
b34976b6 356 FALSE), /* pcrel_offset */
915e5146
HPN
357
358 HOWTO (R_CRIS_32_GOTPLT, /* type */
359 0, /* rightshift */
360 2, /* size (0 = byte, 1 = short, 2 = long) */
361 32, /* bitsize */
b34976b6 362 FALSE, /* pc_relative */
915e5146
HPN
363 0, /* bitpos */
364 complain_overflow_bitfield, /* complain_on_overflow */
365 bfd_elf_generic_reloc, /* special_function */
366 "R_CRIS_32_GOTPLT", /* name */
b34976b6 367 FALSE, /* partial_inplace */
915e5146
HPN
368 0, /* src_mask */
369 0xffffffff, /* dst_mask */
b34976b6 370 FALSE), /* pcrel_offset */
915e5146
HPN
371
372 /* A 32-bit offset from GOT to (local const) symbol: no GOT entry should
373 be necessary. */
374 HOWTO (R_CRIS_32_GOTREL, /* type */
375 0, /* rightshift */
376 2, /* size (0 = byte, 1 = short, 2 = long) */
377 32, /* bitsize */
b34976b6 378 FALSE, /* pc_relative */
915e5146
HPN
379 0, /* bitpos */
380 complain_overflow_bitfield, /* complain_on_overflow */
381 bfd_elf_generic_reloc, /* special_function */
382 "R_CRIS_32_GOTREL", /* name */
b34976b6 383 FALSE, /* partial_inplace */
915e5146
HPN
384 0, /* src_mask */
385 0xffffffff, /* dst_mask */
b34976b6 386 FALSE), /* pcrel_offset */
915e5146
HPN
387
388 /* A 32-bit offset from GOT to entry for this symbol in PLT and request
389 to create PLT entry for symbol. */
390 HOWTO (R_CRIS_32_PLT_GOTREL, /* type */
391 0, /* rightshift */
392 2, /* size (0 = byte, 1 = short, 2 = long) */
393 32, /* bitsize */
b34976b6 394 FALSE, /* pc_relative */
915e5146
HPN
395 0, /* bitpos */
396 complain_overflow_bitfield, /* complain_on_overflow */
397 bfd_elf_generic_reloc, /* special_function */
398 "R_CRIS_32_PLT_GOTREL", /* name */
b34976b6 399 FALSE, /* partial_inplace */
915e5146
HPN
400 0, /* src_mask */
401 0xffffffff, /* dst_mask */
b34976b6 402 FALSE), /* pcrel_offset */
915e5146
HPN
403
404 /* A 32-bit offset from PC (location after the relocation) + addend to
405 entry for this symbol in PLT and request to create PLT entry for
406 symbol. */
407 HOWTO (R_CRIS_32_PLT_PCREL, /* type */
408 0, /* rightshift */
409 2, /* size (0 = byte, 1 = short, 2 = long) */
410 32, /* bitsize */
b34976b6 411 TRUE, /* pc_relative */
915e5146
HPN
412 0, /* bitpos */
413 complain_overflow_bitfield, /* complain_on_overflow */
bac23f82 414 cris_elf_pcrel_reloc, /* special_function */
915e5146 415 "R_CRIS_32_PLT_PCREL", /* name */
b34976b6 416 FALSE, /* partial_inplace */
915e5146
HPN
417 0, /* src_mask */
418 0xffffffff, /* dst_mask */
b34976b6 419 TRUE) /* pcrel_offset */
06c15ad7
HPN
420};
421\f
422/* Map BFD reloc types to CRIS ELF reloc types. */
423
424struct cris_reloc_map
425{
426 bfd_reloc_code_real_type bfd_reloc_val;
427 unsigned int cris_reloc_val;
428};
429
430static const struct cris_reloc_map cris_reloc_map [] =
431{
432 { BFD_RELOC_NONE, R_CRIS_NONE },
433 { BFD_RELOC_8, R_CRIS_8 },
434 { BFD_RELOC_16, R_CRIS_16 },
435 { BFD_RELOC_32, R_CRIS_32 },
436 { BFD_RELOC_8_PCREL, R_CRIS_8_PCREL },
437 { BFD_RELOC_16_PCREL, R_CRIS_16_PCREL },
438 { BFD_RELOC_32_PCREL, R_CRIS_32_PCREL },
439 { BFD_RELOC_VTABLE_INHERIT, R_CRIS_GNU_VTINHERIT },
915e5146
HPN
440 { BFD_RELOC_VTABLE_ENTRY, R_CRIS_GNU_VTENTRY },
441 { BFD_RELOC_CRIS_COPY, R_CRIS_COPY },
442 { BFD_RELOC_CRIS_GLOB_DAT, R_CRIS_GLOB_DAT },
443 { BFD_RELOC_CRIS_JUMP_SLOT, R_CRIS_JUMP_SLOT },
444 { BFD_RELOC_CRIS_RELATIVE, R_CRIS_RELATIVE },
445 { BFD_RELOC_CRIS_16_GOT, R_CRIS_16_GOT },
446 { BFD_RELOC_CRIS_32_GOT, R_CRIS_32_GOT },
447 { BFD_RELOC_CRIS_16_GOTPLT, R_CRIS_16_GOTPLT },
448 { BFD_RELOC_CRIS_32_GOTPLT, R_CRIS_32_GOTPLT },
449 { BFD_RELOC_CRIS_32_GOTREL, R_CRIS_32_GOTREL },
450 { BFD_RELOC_CRIS_32_PLT_GOTREL, R_CRIS_32_PLT_GOTREL },
451 { BFD_RELOC_CRIS_32_PLT_PCREL, R_CRIS_32_PLT_PCREL }
06c15ad7
HPN
452};
453
454static reloc_howto_type *
455cris_reloc_type_lookup (abfd, code)
456 bfd * abfd ATTRIBUTE_UNUSED;
457 bfd_reloc_code_real_type code;
458{
908d94bf 459 unsigned int i;
06c15ad7 460
908d94bf 461 for (i = 0; i < sizeof (cris_reloc_map) / sizeof (cris_reloc_map[0]); i++)
06c15ad7
HPN
462 if (cris_reloc_map [i].bfd_reloc_val == code)
463 return & cris_elf_howto_table [cris_reloc_map[i].cris_reloc_val];
a7c10850 464
06c15ad7
HPN
465 return NULL;
466}
467
468/* Set the howto pointer for an CRIS ELF reloc. */
469
470static void
471cris_info_to_howto_rela (abfd, cache_ptr, dst)
472 bfd * abfd ATTRIBUTE_UNUSED;
473 arelent * cache_ptr;
947216bf 474 Elf_Internal_Rela * dst;
06c15ad7
HPN
475{
476 unsigned int r_type;
477
478 r_type = ELF32_R_TYPE (dst->r_info);
479 BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
480 cache_ptr->howto = & cris_elf_howto_table [r_type];
481}
bac23f82
HPN
482
483bfd_reloc_status_type
484cris_elf_pcrel_reloc (abfd, reloc_entry, symbol, data, input_section,
485 output_bfd, error_message)
486 bfd *abfd ATTRIBUTE_UNUSED;
487 arelent *reloc_entry;
488 asymbol *symbol;
489 PTR data ATTRIBUTE_UNUSED;
490 asection *input_section;
491 bfd *output_bfd;
492 char **error_message ATTRIBUTE_UNUSED;
493{
494 /* By default (using only bfd_elf_generic_reloc when linking to
495 non-ELF formats) PC-relative relocs are relative to the beginning
496 of the reloc. CRIS PC-relative relocs are relative to the position
497 *after* the reloc because that's what pre-CRISv32 PC points to
498 after reading an insn field with that reloc. (For CRISv32, PC is
499 actually relative to the start of the insn, but we keep the old
500 definition.) Still, we use as much generic machinery as we can.
501
502 Only adjust when doing a final link. */
503 if (output_bfd == (bfd *) NULL)
504 reloc_entry->addend -= 1 << reloc_entry->howto->size;
505
506 return
507 bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
508 input_section, output_bfd, error_message);
509}
06c15ad7 510\f
bac23f82
HPN
511/* Support for core dump NOTE sections.
512 The slightly unintuitive code layout is an attempt to keep at least
513 some similarities with other ports, hoping to simplify general
514 changes, while still keeping Linux/CRIS and Linux/CRISv32 code apart. */
72209a1f 515
b34976b6 516static bfd_boolean
72209a1f
HPN
517cris_elf_grok_prstatus (abfd, note)
518 bfd *abfd;
519 Elf_Internal_Note *note;
520{
521 int offset;
eea6121a 522 size_t size;
72209a1f 523
bac23f82
HPN
524 if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
525 switch (note->descsz)
526 {
527 default:
528 return FALSE;
529
530 case 202: /* Linux/CRISv32 */
531 /* pr_cursig */
532 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
533
534 /* pr_pid */
535 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
536
537 /* pr_reg */
538 offset = 70;
539 size = 128;
540
541 break;
542 }
543 else
544 switch (note->descsz)
545 {
72209a1f 546 default:
b34976b6 547 return FALSE;
72209a1f 548
bc0d28ee 549 case 214: /* Linux/CRIS */
72209a1f
HPN
550 /* pr_cursig */
551 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
552
553 /* pr_pid */
554 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
555
556 /* pr_reg */
557 offset = 70;
eea6121a 558 size = 140;
72209a1f
HPN
559
560 break;
bac23f82 561 }
72209a1f
HPN
562
563 /* Make a ".reg/999" section. */
564 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 565 size, note->descpos + offset);
72209a1f
HPN
566}
567
b34976b6 568static bfd_boolean
72209a1f
HPN
569cris_elf_grok_psinfo (abfd, note)
570 bfd *abfd;
571 Elf_Internal_Note *note;
572{
bac23f82
HPN
573 if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
574 switch (note->descsz)
575 {
576 default:
577 return FALSE;
578
579 case 124: /* Linux/CRISv32 elf_prpsinfo */
580 elf_tdata (abfd)->core_program
581 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
582 elf_tdata (abfd)->core_command
583 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
584 }
585 else
586 switch (note->descsz)
587 {
72209a1f 588 default:
b34976b6 589 return FALSE;
72209a1f
HPN
590
591 case 124: /* Linux/CRIS elf_prpsinfo */
592 elf_tdata (abfd)->core_program
bac23f82 593 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
72209a1f 594 elf_tdata (abfd)->core_command
bac23f82
HPN
595 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
596 }
72209a1f
HPN
597
598 /* Note that for some reason, a spurious space is tacked
599 onto the end of the args in some (at least one anyway)
600 implementations, so strip it off if it exists. */
601
602 {
603 char *command = elf_tdata (abfd)->core_command;
604 int n = strlen (command);
605
606 if (0 < n && command[n - 1] == ' ')
607 command[n - 1] = '\0';
608 }
609
b34976b6 610 return TRUE;
72209a1f
HPN
611}
612\f
915e5146
HPN
613/* The name of the dynamic interpreter. This is put in the .interp
614 section. */
615
616#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
617
618/* The size in bytes of an entry in the procedure linkage table. */
619
620#define PLT_ENTRY_SIZE 20
bac23f82 621#define PLT_ENTRY_SIZE_V32 26
915e5146
HPN
622
623/* The first entry in an absolute procedure linkage table looks like this. */
624
625static const bfd_byte elf_cris_plt0_entry[PLT_ENTRY_SIZE] =
626{
627 0xfc, 0xe1,
cedb70c5 628 0x7e, 0x7e, /* push mof. */
915e5146
HPN
629 0x7f, 0x0d, /* (dip [pc+]) */
630 0, 0, 0, 0, /* Replaced with address of .got + 4. */
631 0x30, 0x7a, /* move [...],mof */
632 0x7f, 0x0d, /* (dip [pc+]) */
633 0, 0, 0, 0, /* Replaced with address of .got + 8. */
bac23f82
HPN
634 0x30, 0x09 /* jump [...] */
635};
636
637static const bfd_byte elf_cris_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
638{
639 0x84, 0xe2, /* subq 4,$sp */
640 0x6f, 0xfe, /* move.d 0,$acr */
641 0, 0, 0, 0, /* Replaced by address of .got + 4. */
642 0x7e, 0x7a, /* move $mof,[$sp] */
643 0x3f, 0x7a, /* move [$acr],$mof */
644 0x04, 0xf2, /* addq 4,acr */
645 0x6f, 0xfa, /* move.d [$acr],$acr */
646 0xbf, 0x09, /* jump $acr */
647 0xb0, 0x05, /* nop */
648 0, 0 /* Pad out to 26 bytes. */
915e5146
HPN
649};
650
651/* Subsequent entries in an absolute procedure linkage table look like
652 this. */
653
654static const bfd_byte elf_cris_plt_entry[PLT_ENTRY_SIZE] =
655{
656 0x7f, 0x0d, /* (dip [pc+]) */
657 0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
658 0x30, 0x09, /* jump [...] */
659 0x3f, 0x7e, /* move [pc+],mof */
660 0, 0, 0, 0, /* Replaced with offset into relocation table. */
661 0x2f, 0xfe, /* add.d [pc+],pc */
662 0xec, 0xff,
663 0xff, 0xff /* Replaced with offset to start of .plt. */
664};
665
bac23f82
HPN
666static const bfd_byte elf_cris_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
667{
668 0x6f, 0xfe, /* move.d 0,$acr */
669 0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
670 0x6f, 0xfa, /* move.d [$acr],$acr */
671 0xbf, 0x09, /* jump $acr */
672 0xb0, 0x05, /* nop */
673 0x3f, 0x7e, /* move 0,mof */
674 0, 0, 0, 0, /* Replaced with offset into relocation table. */
675 0xbf, 0x0e, /* ba start_of_plt0_entry */
676 0, 0, 0, 0, /* Replaced with offset to plt0 entry. */
677 0xb0, 0x05 /* nop */
678};
679
915e5146
HPN
680/* The first entry in a PIC procedure linkage table looks like this. */
681
682static const bfd_byte elf_cris_pic_plt0_entry[PLT_ENTRY_SIZE] =
683{
684 0xfc, 0xe1, 0x7e, 0x7e, /* push mof */
685 0x04, 0x01, 0x30, 0x7a, /* move [r0+4],mof */
686 0x08, 0x01, 0x30, 0x09, /* jump [r0+8] */
687 0, 0, 0, 0, 0, 0, 0, 0, /* Pad out to 20 bytes. */
688};
689
bac23f82
HPN
690static const bfd_byte elf_cris_pic_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
691{
692 0x84, 0xe2, /* subq 4,$sp */
693 0x04, 0x01, /* addoq 4,$r0,$acr */
694 0x7e, 0x7a, /* move $mof,[$sp] */
695 0x3f, 0x7a, /* move [$acr],$mof */
696 0x04, 0xf2, /* addq 4,$acr */
697 0x6f, 0xfa, /* move.d [$acr],$acr */
698 0xbf, 0x09, /* jump $acr */
699 0xb0, 0x05, /* nop */
700 0, 0, /* Pad out to 26 bytes. */
701 0, 0, 0, 0,
702 0, 0, 0, 0
703};
704
915e5146
HPN
705/* Subsequent entries in a PIC procedure linkage table look like this. */
706
707static const bfd_byte elf_cris_pic_plt_entry[PLT_ENTRY_SIZE] =
708{
709 0x6f, 0x0d, /* (bdap [pc+].d,r0) */
710 0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
711 0x30, 0x09, /* jump [...] */
712 0x3f, 0x7e, /* move [pc+],mof */
713 0, 0, 0, 0, /* Replaced with offset into relocation table. */
714 0x2f, 0xfe, /* add.d [pc+],pc */
715 0xec, 0xff, /* Replaced with offset to start of .plt. */
716 0xff, 0xff
717};
bac23f82
HPN
718
719static const bfd_byte elf_cris_pic_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
720{
721 0x6f, 0x0d, /* addo.d 0,$r0,$acr */
722 0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
723 0x6f, 0xfa, /* move.d [$acr],$acr */
724 0xbf, 0x09, /* jump $acr */
725 0xb0, 0x05, /* nop */
726 0x3f, 0x7e, /* move relocoffs,$mof */
727 0, 0, 0, 0, /* Replaced with offset into relocation table. */
728 0xbf, 0x0e, /* ba start_of_plt */
729 0, 0, 0, 0, /* Replaced with offset to start of .plt. */
730 0xb0, 0x05 /* nop */
731};
915e5146
HPN
732\f
733/* We copy elf32-m68k.c and elf32-i386.c for the basic linker hash bits
734 (and most other PIC/shlib stuff). Check that we don't drift away
735 without reason.
736
737 The CRIS linker, like the m68k and i386 linkers (and probably the rest
738 too) needs to keep track of the number of relocs that it decides to
739 copy in check_relocs for each symbol. This is so that it can discard
740 PC relative relocs if it doesn't need them when linking with
741 -Bsymbolic. We store the information in a field extending the regular
742 ELF linker hash table. */
743
744/* This structure keeps track of the number of PC relative relocs we have
745 copied for a given symbol. */
746
747struct elf_cris_pcrel_relocs_copied
748{
749 /* Next section. */
750 struct elf_cris_pcrel_relocs_copied *next;
751 /* A section in dynobj. */
752 asection *section;
753 /* Number of relocs copied in this section. */
754 bfd_size_type count;
755};
756
757/* CRIS ELF linker hash entry. */
758
759struct elf_cris_link_hash_entry
760{
761 struct elf_link_hash_entry root;
762
763 /* Number of PC relative relocs copied for this symbol. */
764 struct elf_cris_pcrel_relocs_copied *pcrel_relocs_copied;
765
766 /* The GOTPLT references are CRIS-specific; the goal is to avoid having
767 both a general GOT and a PLT-specific GOT entry for the same symbol,
768 when it is referenced both as a function and as a function pointer.
769
770 Number of GOTPLT references for a function. */
771 bfd_signed_vma gotplt_refcount;
772
773 /* Actual GOTPLT index for this symbol, if applicable, or zero if not
774 (zero is never used as an index). FIXME: We should be able to fold
775 this with gotplt_refcount in a union, like the got and plt unions in
776 elf_link_hash_entry. */
777 bfd_size_type gotplt_offset;
778};
779
780/* CRIS ELF linker hash table. */
781
782struct elf_cris_link_hash_table
783{
784 struct elf_link_hash_table root;
785
786 /* We can't use the PLT offset and calculate to get the GOTPLT offset,
787 since we try and avoid creating GOTPLT:s when there's already a GOT.
788 Instead, we keep and update the next available index here. */
789 bfd_size_type next_gotplt_entry;
790};
791
792/* Traverse a CRIS ELF linker hash table. */
793
794#define elf_cris_link_hash_traverse(table, func, info) \
795 (elf_link_hash_traverse \
796 (&(table)->root, \
b34976b6 797 (bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
915e5146
HPN
798 (info)))
799
800/* Get the CRIS ELF linker hash table from a link_info structure. */
801
802#define elf_cris_hash_table(p) \
803 ((struct elf_cris_link_hash_table *) (p)->hash)
804
805/* Create an entry in a CRIS ELF linker hash table. */
806
807static struct bfd_hash_entry *
808elf_cris_link_hash_newfunc (entry, table, string)
809 struct bfd_hash_entry *entry;
810 struct bfd_hash_table *table;
811 const char *string;
812{
813 struct elf_cris_link_hash_entry *ret =
814 (struct elf_cris_link_hash_entry *) entry;
815
816 /* Allocate the structure if it has not already been allocated by a
817 subclass. */
818 if (ret == (struct elf_cris_link_hash_entry *) NULL)
819 ret = ((struct elf_cris_link_hash_entry *)
820 bfd_hash_allocate (table,
821 sizeof (struct elf_cris_link_hash_entry)));
822 if (ret == (struct elf_cris_link_hash_entry *) NULL)
823 return (struct bfd_hash_entry *) ret;
824
825 /* Call the allocation method of the superclass. */
826 ret = ((struct elf_cris_link_hash_entry *)
827 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
828 table, string));
829 if (ret != (struct elf_cris_link_hash_entry *) NULL)
830 {
831 ret->pcrel_relocs_copied = NULL;
832 ret->gotplt_refcount = 0;
833 ret->gotplt_offset = 0;
834 }
835
836 return (struct bfd_hash_entry *) ret;
837}
838
839/* Create a CRIS ELF linker hash table. */
840
841static struct bfd_link_hash_table *
842elf_cris_link_hash_table_create (abfd)
843 bfd *abfd;
844{
845 struct elf_cris_link_hash_table *ret;
dc810e39 846 bfd_size_type amt = sizeof (struct elf_cris_link_hash_table);
915e5146 847
e2d34d7d 848 ret = ((struct elf_cris_link_hash_table *) bfd_malloc (amt));
915e5146
HPN
849 if (ret == (struct elf_cris_link_hash_table *) NULL)
850 return NULL;
851
66eb6687
AM
852 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
853 elf_cris_link_hash_newfunc,
854 sizeof (struct elf_cris_link_hash_entry)))
915e5146 855 {
e2d34d7d 856 free (ret);
915e5146
HPN
857 return NULL;
858 }
859
860 /* Initialize to skip over the first three entries in the gotplt; they
861 are used for run-time symbol evaluation. */
862 ret->next_gotplt_entry = 12;
863
864 return &ret->root.root;
865}
866\f
06c15ad7 867/* Perform a single relocation. By default we use the standard BFD
915e5146 868 routines, with a few tweaks. */
06c15ad7
HPN
869
870static bfd_reloc_status_type
871cris_final_link_relocate (howto, input_bfd, input_section, contents, rel,
872 relocation)
873 reloc_howto_type * howto;
874 bfd * input_bfd;
875 asection * input_section;
876 bfd_byte * contents;
877 Elf_Internal_Rela * rel;
878 bfd_vma relocation;
879{
915e5146
HPN
880 bfd_reloc_status_type r;
881
882 /* PC-relative relocations are relative to the position *after*
883 the reloc. Note that for R_CRIS_8_PCREL the adjustment is
884 not a single byte, since PC must be 16-bit-aligned. */
885 switch (ELF32_R_TYPE (rel->r_info))
886 {
887 /* Check that the 16-bit GOT relocs are positive. */
888 case R_CRIS_16_GOTPLT:
889 case R_CRIS_16_GOT:
890 if ((bfd_signed_vma) relocation < 0)
891 return bfd_reloc_overflow;
892 break;
893
894 case R_CRIS_32_PLT_PCREL:
895 case R_CRIS_32_PCREL:
896 relocation -= 2;
897 /* Fall through. */
898 case R_CRIS_8_PCREL:
899 case R_CRIS_16_PCREL:
900 relocation -= 2;
901 break;
902
903 default:
904 break;
905 }
906
907 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
06c15ad7
HPN
908 contents, rel->r_offset,
909 relocation, rel->r_addend);
910 return r;
911}
912\f
913/* Relocate an CRIS ELF section. See elf32-fr30.c, from where this was
914 copied, for further comments. */
915
b34976b6 916static bfd_boolean
06c15ad7
HPN
917cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
918 contents, relocs, local_syms, local_sections)
b34976b6
AM
919 bfd *output_bfd ATTRIBUTE_UNUSED;
920 struct bfd_link_info *info;
921 bfd *input_bfd;
922 asection *input_section;
923 bfd_byte *contents;
924 Elf_Internal_Rela *relocs;
925 Elf_Internal_Sym *local_syms;
926 asection **local_sections;
06c15ad7 927{
915e5146 928 bfd *dynobj;
b34976b6
AM
929 Elf_Internal_Shdr *symtab_hdr;
930 struct elf_link_hash_entry **sym_hashes;
915e5146
HPN
931 bfd_vma *local_got_offsets;
932 asection *sgot;
933 asection *splt;
934 asection *sreloc;
b34976b6
AM
935 Elf_Internal_Rela *rel;
936 Elf_Internal_Rela *relend;
06c15ad7 937
1049f94e 938 if (info->relocatable)
b34976b6 939 return TRUE;
f0fe0e16 940
915e5146
HPN
941 dynobj = elf_hash_table (info)->dynobj;
942 local_got_offsets = elf_local_got_offsets (input_bfd);
06c15ad7
HPN
943 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
944 sym_hashes = elf_sym_hashes (input_bfd);
945 relend = relocs + input_section->reloc_count;
946
915e5146
HPN
947 sgot = NULL;
948 splt = NULL;
949 sreloc = NULL;
950
951 if (dynobj != NULL)
952 {
953 splt = bfd_get_section_by_name (dynobj, ".plt");
954 sgot = bfd_get_section_by_name (dynobj, ".got");
955 }
956
06c15ad7
HPN
957 for (rel = relocs; rel < relend; rel ++)
958 {
b34976b6
AM
959 reloc_howto_type *howto;
960 unsigned long r_symndx;
961 Elf_Internal_Sym *sym;
962 asection *sec;
963 struct elf_link_hash_entry *h;
964 bfd_vma relocation;
965 bfd_reloc_status_type r;
966 const char *symname = NULL;
967 int r_type;
a7c10850 968
06c15ad7 969 r_type = ELF32_R_TYPE (rel->r_info);
a7c10850 970
06c15ad7
HPN
971 if ( r_type == R_CRIS_GNU_VTINHERIT
972 || r_type == R_CRIS_GNU_VTENTRY)
973 continue;
a7c10850 974
06c15ad7 975 /* This is a final link. */
f0fe0e16 976 r_symndx = ELF32_R_SYM (rel->r_info);
915e5146 977 howto = cris_elf_howto_table + r_type;
06c15ad7
HPN
978 h = NULL;
979 sym = NULL;
980 sec = NULL;
a7c10850 981
06c15ad7
HPN
982 if (r_symndx < symtab_hdr->sh_info)
983 {
984 sym = local_syms + r_symndx;
985 sec = local_sections [r_symndx];
8517fae7 986 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
a7c10850 987
dc810e39
AM
988 symname = (bfd_elf_string_from_elf_section
989 (input_bfd, symtab_hdr->sh_link, sym->st_name));
990 if (symname == NULL)
991 symname = bfd_section_name (input_bfd, sec);
06c15ad7
HPN
992 }
993 else
994 {
560e09e9
NC
995 bfd_boolean warned;
996 bfd_boolean unresolved_reloc;
0a4787a0 997
b2a8e766
AM
998 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
999 r_symndx, symtab_hdr, sym_hashes,
1000 h, sec, relocation,
1001 unresolved_reloc, warned);
915e5146 1002
560e09e9 1003 if (unresolved_reloc
915e5146
HPN
1004 /* Perhaps we should detect the cases that
1005 sec->output_section is expected to be NULL like i386 and
1006 m68k, but apparently (and according to elfxx-ia64.c) all
1007 valid cases are where the symbol is defined in a shared
1008 object which we link dynamically against. This includes
1009 PLT relocs for which we've created a PLT entry and other
1010 relocs for which we're prepared to create dynamic
1011 relocations.
1012
1013 For now, new situations cause us to just err when
1014 sec->output_offset is NULL but the object with the symbol
1015 is *not* dynamically linked against. Thus this will
1016 automatically remind us so we can see if there are other
1017 valid cases we need to revisit. */
560e09e9
NC
1018 && (sec->owner->flags & DYNAMIC) != 0)
1019 relocation = 0;
1020
1021 else if (h->root.type == bfd_link_hash_defined
1022 || h->root.type == bfd_link_hash_defweak)
1023 {
1024 /* Here follow the cases where the relocation value must
1025 be zero (or when further handling is simplified when
1026 zero). I can't claim to understand the various
1027 conditions and they weren't described in the files
1028 where I copied them from (elf32-m68k.c and
1029 elf32-i386.c), but let's mention examples of where
1030 they happen. FIXME: Perhaps define and use a
1031 dynamic_symbol_p function like ia64.
1032
1033 - When creating a shared library, we can have an
1034 ordinary relocation for a symbol defined in a shared
1035 library (perhaps the one we create). We then make
1036 the relocation value zero, as the value seen now will
1037 be added into the relocation addend in this shared
1038 library, but must be handled only at dynamic-link
1039 time. FIXME: Not sure this example covers the
1040 h->elf_link_hash_flags test, though it's there in
1041 other targets. */
1042 if (info->shared
1043 && ((! info->symbolic && h->dynindx != -1)
f5385ebf 1044 || !h->def_regular)
560e09e9
NC
1045 && (input_section->flags & SEC_ALLOC) != 0
1046 && (r_type == R_CRIS_8
1047 || r_type == R_CRIS_16
1048 || r_type == R_CRIS_32
1049 || r_type == R_CRIS_8_PCREL
1050 || r_type == R_CRIS_16_PCREL
1051 || r_type == R_CRIS_32_PCREL))
915e5146 1052 relocation = 0;
560e09e9 1053 else if (unresolved_reloc)
915e5146 1054 {
560e09e9 1055 _bfd_error_handler
bac23f82 1056 (_("%B, section %A: unresolvable relocation %s against symbol `%s'"),
d003868e
AM
1057 input_bfd,
1058 input_section,
8f615d07 1059 cris_elf_howto_table[r_type].name,
d003868e 1060 symname);
915e5146 1061 bfd_set_error (bfd_error_bad_value);
b34976b6 1062 return FALSE;
915e5146 1063 }
06c15ad7 1064 }
06c15ad7 1065 }
a7c10850 1066
915e5146 1067 switch (r_type)
06c15ad7 1068 {
915e5146
HPN
1069 case R_CRIS_16_GOTPLT:
1070 case R_CRIS_32_GOTPLT:
1071 /* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT,
1072 but we require a PLT, and the PLT handling will take care of
1073 filling in the PLT-specific GOT entry. For the GOT offset,
1074 calculate it as we do when filling it in for the .got.plt
1075 section. If we don't have a PLT, punt to GOT handling. */
1076 if (h != NULL
1077 && ((struct elf_cris_link_hash_entry *) h)->gotplt_offset != 0)
06c15ad7 1078 {
915e5146
HPN
1079 asection *sgotplt
1080 = bfd_get_section_by_name (dynobj, ".got.plt");
1081 bfd_vma got_offset;
a7c10850 1082
915e5146
HPN
1083 BFD_ASSERT (h->dynindx != -1);
1084 BFD_ASSERT (sgotplt != NULL);
a7c10850 1085
915e5146
HPN
1086 got_offset
1087 = ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
06c15ad7 1088
915e5146 1089 relocation = got_offset;
06c15ad7 1090 break;
915e5146 1091 }
06c15ad7 1092
4d96d128 1093 /* We didn't make a PLT entry for this symbol. Maybe everything is
915e5146
HPN
1094 folded into the GOT. Other than folding, this happens when
1095 statically linking PIC code, or when using -Bsymbolic. Check
1096 that we instead have a GOT entry as done for us by
1097 elf_cris_adjust_dynamic_symbol, and drop through into the
e4a2175c
HPN
1098 ordinary GOT cases. This must not happen for the
1099 executable, because any reference it does to a function
1100 that is satisfied by a DSO must generate a PLT. We assume
1101 these call-specific relocs don't address non-functions. */
1102 if (h != NULL
1103 && (h->got.offset == (bfd_vma) -1
1104 || (!info->shared
f5385ebf
AM
1105 && !(h->def_regular
1106 || (!h->def_dynamic
1107 && h->root.type == bfd_link_hash_undefweak)))))
915e5146
HPN
1108 {
1109 (*_bfd_error_handler)
e4a2175c 1110 ((h->got.offset == (bfd_vma) -1)
bac23f82 1111 ? _("%B, section %A: No PLT nor GOT for relocation %s"
d003868e 1112 " against symbol `%s'")
bac23f82 1113 : _("%B, section %A: No PLT for relocation %s"
d003868e
AM
1114 " against symbol `%s'"),
1115 input_bfd,
1116 input_section,
915e5146 1117 cris_elf_howto_table[r_type].name,
ada1953e
HPN
1118 (symname != NULL && symname[0] != '\0'
1119 ? symname : _("[whose name is lost]")));
915e5146
HPN
1120
1121 /* FIXME: Perhaps blaming input is not the right thing to
1122 do; this is probably an internal error. But it is true
1123 that we didn't like that particular input. */
1124 bfd_set_error (bfd_error_bad_value);
b34976b6 1125 return FALSE;
915e5146
HPN
1126 }
1127 /* Fall through. */
1128
1129 /* The size of the actual relocation is not used here; we only
1130 fill in the GOT table here. */
1131 case R_CRIS_16_GOT:
1132 case R_CRIS_32_GOT:
1133 {
1134 bfd_vma off;
1135
1136 /* Note that despite using RELA relocations, the .got contents
1137 is always filled in with the link-relative relocation
1138 value; the addend. */
1139
1140 if (h != NULL)
1141 {
1142 off = h->got.offset;
1143 BFD_ASSERT (off != (bfd_vma) -1);
1144
1145 if (!elf_hash_table (info)->dynamic_sections_created
205cfeb0 1146 || (! info->shared
f5385ebf 1147 && (h->def_regular
e4a2175c 1148 || h->type == STT_FUNC
f5385ebf 1149 || h->needs_plt))
915e5146
HPN
1150 || (info->shared
1151 && (info->symbolic || h->dynindx == -1)
f5385ebf 1152 && h->def_regular))
915e5146 1153 {
4d96d128 1154 /* This wasn't checked above for ! info->shared, but
e4a2175c
HPN
1155 must hold there if we get here; the symbol must
1156 be defined in the regular program or be undefweak
1157 or be a function or otherwise need a PLT. */
6849c52f
HPN
1158 BFD_ASSERT (!elf_hash_table (info)->dynamic_sections_created
1159 || info->shared
f5385ebf 1160 || h->def_regular
e4a2175c 1161 || h->type == STT_FUNC
f5385ebf 1162 || h->needs_plt
6849c52f 1163 || h->root.type == bfd_link_hash_undefweak);
4d96d128 1164
915e5146 1165 /* This is actually a static link, or it is a
6849c52f
HPN
1166 -Bsymbolic link and the symbol is defined locally,
1167 or is undefweak, or the symbol was forced to be
1168 local because of a version file, or we're not
1169 creating a dynamic object. We must initialize this
1170 entry in the global offset table. Since the offset
1171 must always be a multiple of 4, we use the least
1172 significant bit to record whether we have
1173 initialized it already.
1174
1175 If this GOT entry should be runtime-initialized, we
1176 will create a .rela.got relocation entry to
1177 initialize the value. This is done in the
1178 finish_dynamic_symbol routine. */
915e5146
HPN
1179 if ((off & 1) != 0)
1180 off &= ~1;
1181 else
1182 {
1183 bfd_put_32 (output_bfd, relocation,
1184 sgot->contents + off);
1185 h->got.offset |= 1;
1186 }
1187 }
1188 }
1189 else
1190 {
1191 BFD_ASSERT (local_got_offsets != NULL
1192 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1193
1194 off = local_got_offsets[r_symndx];
1195
1196 /* The offset must always be a multiple of 4. We use
1197 the least significant bit to record whether we have
1198 already generated the necessary reloc. */
1199 if ((off & 1) != 0)
1200 off &= ~1;
1201 else
1202 {
1203 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1204
1205 if (info->shared)
1206 {
947216bf 1207 asection *s;
915e5146 1208 Elf_Internal_Rela outrel;
947216bf 1209 bfd_byte *loc;
915e5146 1210
947216bf
AM
1211 s = bfd_get_section_by_name (dynobj, ".rela.got");
1212 BFD_ASSERT (s != NULL);
915e5146
HPN
1213
1214 outrel.r_offset = (sgot->output_section->vma
1215 + sgot->output_offset
1216 + off);
1217 outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
1218 outrel.r_addend = relocation;
947216bf
AM
1219 loc = s->contents;
1220 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
1221 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
915e5146
HPN
1222 }
1223
1224 local_got_offsets[r_symndx] |= 1;
1225 }
1226 }
1227
1228 relocation = sgot->output_offset + off;
1229 if (rel->r_addend != 0)
1230 {
1231 /* We can't do anything for a relocation which is against
1232 a symbol *plus offset*. GOT holds relocations for
1233 symbols. Make this an error; the compiler isn't
1234 allowed to pass us these kinds of things. */
1235 if (h == NULL)
1236 (*_bfd_error_handler)
bac23f82 1237 (_("%B, section %A: relocation %s with non-zero addend %d"
d003868e
AM
1238 " against local symbol"),
1239 input_bfd,
1240 input_section,
915e5146 1241 cris_elf_howto_table[r_type].name,
d003868e 1242 rel->r_addend);
915e5146
HPN
1243 else
1244 (*_bfd_error_handler)
bac23f82 1245 (_("%B, section %A: relocation %s with non-zero addend %d"
d003868e
AM
1246 " against symbol `%s'"),
1247 input_bfd,
1248 input_section,
915e5146
HPN
1249 cris_elf_howto_table[r_type].name,
1250 rel->r_addend,
d003868e 1251 symname[0] != '\0' ? symname : _("[whose name is lost]"));
915e5146
HPN
1252
1253 bfd_set_error (bfd_error_bad_value);
b34976b6 1254 return FALSE;
915e5146
HPN
1255 }
1256 }
1257 break;
06c15ad7 1258
915e5146 1259 case R_CRIS_32_GOTREL:
3dab95d3
HPN
1260 /* This relocation must only be performed against local symbols.
1261 It's also ok when we link a program and the symbol is either
1262 defined in an ordinary (non-DSO) object or is undefined weak. */
1263 if (h != NULL
1264 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1265 && !(!info->shared
f5385ebf
AM
1266 && (h->def_regular
1267 || (!h->def_dynamic
3dab95d3 1268 && h->root.type == bfd_link_hash_undefweak))))
915e5146
HPN
1269 {
1270 (*_bfd_error_handler)
bac23f82
HPN
1271 (_("%B, section %A: relocation %s is"
1272 " not allowed for global symbol: `%s'"),
d003868e
AM
1273 input_bfd,
1274 input_section,
915e5146 1275 cris_elf_howto_table[r_type].name,
d003868e 1276 symname);
915e5146 1277 bfd_set_error (bfd_error_bad_value);
b34976b6 1278 return FALSE;
06c15ad7
HPN
1279 }
1280
58255df3
HPN
1281 /* This can happen if we get a link error with the input ELF
1282 variant mismatching the output variant. Emit an error so
1283 it's noticed if it happens elsewhere. */
1284 if (sgot == NULL)
1285 {
1286 (*_bfd_error_handler)
bac23f82 1287 (_("%B, section %A: relocation %s with no GOT created"),
d003868e
AM
1288 input_bfd,
1289 input_section,
1290 cris_elf_howto_table[r_type].name);
58255df3 1291 bfd_set_error (bfd_error_bad_value);
b34976b6 1292 return FALSE;
58255df3
HPN
1293 }
1294
915e5146
HPN
1295 /* This relocation is like a PC-relative one, except the
1296 reference point is the location of GOT. Note that
1297 sgot->output_offset is not involved in this calculation. We
1298 always want the start of entire .got section, not the
1299 position after the reserved header. */
1300 relocation -= sgot->output_section->vma;
1301 break;
06c15ad7 1302
915e5146
HPN
1303 case R_CRIS_32_PLT_PCREL:
1304 /* Relocation is to the entry for this symbol in the
1305 procedure linkage table. */
06c15ad7 1306
915e5146
HPN
1307 /* Resolve a PLT_PCREL reloc against a local symbol directly,
1308 without using the procedure linkage table. */
0a4787a0 1309 if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
915e5146
HPN
1310 break;
1311
1312 if (h->plt.offset == (bfd_vma) -1
1313 || splt == NULL)
1314 {
1315 /* We didn't make a PLT entry for this symbol. This
1316 happens when statically linking PIC code, or when
1317 using -Bsymbolic. */
1318 break;
1319 }
1320
1321 relocation = (splt->output_section->vma
1322 + splt->output_offset
1323 + h->plt.offset);
1324 break;
1325
1326 case R_CRIS_32_PLT_GOTREL:
1327 /* Like R_CRIS_32_PLT_PCREL, but the reference point is the
1328 start of the .got section. See also comment at
1329 R_CRIS_32_GOT. */
1330 relocation -= sgot->output_section->vma;
1331
1332 /* Resolve a PLT_GOTREL reloc against a local symbol directly,
1333 without using the procedure linkage table. */
0a4787a0 1334 if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
915e5146
HPN
1335 break;
1336
1337 if (h->plt.offset == (bfd_vma) -1
1338 || splt == NULL)
1339 {
1340 /* We didn't make a PLT entry for this symbol. This
1341 happens when statically linking PIC code, or when
1342 using -Bsymbolic. */
1343 break;
1344 }
1345
1346 relocation = (splt->output_section->vma
1347 + splt->output_offset
1348 + h->plt.offset
1349 - sgot->output_section->vma);
1350 break;
1351
1352 case R_CRIS_8_PCREL:
1353 case R_CRIS_16_PCREL:
1354 case R_CRIS_32_PCREL:
1355 /* If the symbol was local, we need no shlib-specific handling. */
0a4787a0 1356 if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
915e5146
HPN
1357 break;
1358
1359 /* Fall through. */
1360 case R_CRIS_8:
1361 case R_CRIS_16:
1362 case R_CRIS_32:
1363 if (info->shared
ec338859 1364 && r_symndx != 0
915e5146
HPN
1365 && (input_section->flags & SEC_ALLOC) != 0
1366 && ((r_type != R_CRIS_8_PCREL
1367 && r_type != R_CRIS_16_PCREL
1368 && r_type != R_CRIS_32_PCREL)
1369 || (!info->symbolic
f5385ebf 1370 || !h->def_regular)))
915e5146
HPN
1371 {
1372 Elf_Internal_Rela outrel;
947216bf 1373 bfd_byte *loc;
b34976b6 1374 bfd_boolean skip, relocate;
915e5146
HPN
1375
1376 /* When generating a shared object, these relocations
1377 are copied into the output file to be resolved at run
1378 time. */
1379
1380 if (sreloc == NULL)
1381 {
1382 const char *name;
1383
1384 name = (bfd_elf_string_from_elf_section
1385 (input_bfd,
1386 elf_elfheader (input_bfd)->e_shstrndx,
1387 elf_section_data (input_section)->rel_hdr.sh_name));
1388 if (name == NULL)
b34976b6 1389 return FALSE;
915e5146
HPN
1390
1391 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1392 && strcmp (bfd_get_section_name (input_bfd,
1393 input_section),
1394 name + 5) == 0);
1395
1396 sreloc = bfd_get_section_by_name (dynobj, name);
1397
1398 /* That section should have been created in
1399 cris_elf_check_relocs, but that function will not be
1400 called for objects which fail in
1401 cris_elf_merge_private_bfd_data. */
1402 if (sreloc == NULL)
1403 {
1404 (*_bfd_error_handler)
d003868e
AM
1405 (_("%B: Internal inconsistency; no relocation section %s"),
1406 input_bfd,
915e5146
HPN
1407 name);
1408
1409 bfd_set_error (bfd_error_bad_value);
b34976b6 1410 return FALSE;
915e5146
HPN
1411 }
1412 }
1413
b34976b6
AM
1414 skip = FALSE;
1415 relocate = FALSE;
915e5146 1416
c629eae0
JJ
1417 outrel.r_offset =
1418 _bfd_elf_section_offset (output_bfd, info, input_section,
1419 rel->r_offset);
1420 if (outrel.r_offset == (bfd_vma) -1)
b34976b6 1421 skip = TRUE;
0bb2d96a 1422 else if (outrel.r_offset == (bfd_vma) -2)
b34976b6 1423 skip = TRUE, relocate = TRUE;
915e5146
HPN
1424 outrel.r_offset += (input_section->output_section->vma
1425 + input_section->output_offset);
1426
1427 if (skip)
0bb2d96a 1428 memset (&outrel, 0, sizeof outrel);
915e5146
HPN
1429 /* h->dynindx may be -1 if the symbol was marked to
1430 become local. */
1431 else if (h != NULL
1432 && ((! info->symbolic && h->dynindx != -1)
f5385ebf 1433 || !h->def_regular))
915e5146
HPN
1434 {
1435 BFD_ASSERT (h->dynindx != -1);
915e5146
HPN
1436 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1437 outrel.r_addend = relocation + rel->r_addend;
1438 }
1439 else
1440 {
1441 if (r_type == R_CRIS_32)
1442 {
b34976b6 1443 relocate = TRUE;
915e5146
HPN
1444 outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
1445 outrel.r_addend = relocation + rel->r_addend;
1446 }
1447 else
1448 {
1449 long indx;
1450
8517fae7 1451 if (bfd_is_abs_section (sec))
915e5146
HPN
1452 indx = 0;
1453 else if (sec == NULL || sec->owner == NULL)
1454 {
1455 bfd_set_error (bfd_error_bad_value);
b34976b6 1456 return FALSE;
915e5146
HPN
1457 }
1458 else
1459 {
1460 asection *osec;
1461
1462 osec = sec->output_section;
1463 indx = elf_section_data (osec)->dynindx;
1464 BFD_ASSERT (indx > 0);
1465 }
1466
915e5146
HPN
1467 outrel.r_info = ELF32_R_INFO (indx, r_type);
1468 outrel.r_addend = relocation + rel->r_addend;
1469 }
1470 }
1471
947216bf
AM
1472 loc = sreloc->contents;
1473 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1474 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
915e5146
HPN
1475
1476 /* This reloc will be computed at runtime, so there's no
1477 need to do anything now, except for R_CRIS_32 relocations
1478 that have been turned into R_CRIS_RELATIVE. */
1479 if (!relocate)
1480 continue;
1481 }
1482
1483 break;
1484 }
1485
1486 r = cris_final_link_relocate (howto, input_bfd, input_section,
1487 contents, rel, relocation);
1488
1489 if (r != bfd_reloc_ok)
1490 {
1491 const char * msg = (const char *) NULL;
1492
1493 switch (r)
1494 {
1495 case bfd_reloc_overflow:
1496 r = info->callbacks->reloc_overflow
dfeffb9f
L
1497 (info, (h ? &h->root : NULL), symname, howto->name,
1498 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
915e5146
HPN
1499 break;
1500
1501 case bfd_reloc_undefined:
1502 r = info->callbacks->undefined_symbol
dc810e39 1503 (info, symname, input_bfd, input_section, rel->r_offset,
b34976b6 1504 TRUE);
915e5146
HPN
1505 break;
1506
1507 case bfd_reloc_outofrange:
1508 msg = _("internal error: out of range error");
1509 break;
1510
1511 case bfd_reloc_notsupported:
1512 msg = _("internal error: unsupported relocation error");
1513 break;
1514
1515 case bfd_reloc_dangerous:
1516 msg = _("internal error: dangerous relocation");
1517 break;
1518
1519 default:
1520 msg = _("internal error: unknown error");
1521 break;
1522 }
1523
1524 if (msg)
1525 r = info->callbacks->warning
dc810e39 1526 (info, msg, symname, input_bfd, input_section, rel->r_offset);
915e5146
HPN
1527
1528 if (! r)
b34976b6 1529 return FALSE;
915e5146
HPN
1530 }
1531 }
1532
b34976b6 1533 return TRUE;
915e5146
HPN
1534}
1535\f
1536/* Finish up dynamic symbol handling. We set the contents of various
1537 dynamic sections here. */
1538
b34976b6 1539static bfd_boolean
915e5146
HPN
1540elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
1541 bfd *output_bfd;
1542 struct bfd_link_info *info;
1543 struct elf_link_hash_entry *h;
1544 Elf_Internal_Sym *sym;
1545{
1546 bfd *dynobj;
bac23f82
HPN
1547
1548 /* Where in the plt entry to put values. */
915e5146
HPN
1549 int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16;
1550
bac23f82
HPN
1551 /* What offset to add to the distance to the first PLT entry for the
1552 value at plt_off3. */
1553 int plt_off3_value_bias = 4;
1554
1555 /* Where in the PLT entry the call-dynlink-stub is (happens to be same
1556 for PIC and non-PIC for v32 and pre-v32). */
1557 int plt_stub_offset = 8;
1558 int plt_entry_size = PLT_ENTRY_SIZE;
1559 const bfd_byte *plt_entry = elf_cris_plt_entry;
1560 const bfd_byte *plt_pic_entry = elf_cris_pic_plt_entry;
1561
1562 /* Adjust the various PLT entry offsets. */
1563 if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
1564 {
1565 plt_off2 = 14;
1566 plt_off3 = 20;
1567 plt_off3_value_bias = -2;
1568 plt_stub_offset = 12;
1569 plt_entry_size = PLT_ENTRY_SIZE_V32;
1570 plt_entry = elf_cris_plt_entry_v32;
1571 plt_pic_entry = elf_cris_pic_plt_entry_v32;
1572 }
1573
915e5146
HPN
1574 dynobj = elf_hash_table (info)->dynobj;
1575
1576 if (h->plt.offset != (bfd_vma) -1)
1577 {
1578 asection *splt;
1579 asection *sgotplt;
1580 asection *sgot;
1581 asection *srela;
1582 bfd_vma got_base;
1583
1584 bfd_vma gotplt_offset
1585 = ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
1586 Elf_Internal_Rela rela;
947216bf 1587 bfd_byte *loc;
b34976b6 1588 bfd_boolean has_gotplt = gotplt_offset != 0;
915e5146
HPN
1589
1590 /* Get the index in the procedure linkage table which
1591 corresponds to this symbol. This is the index of this symbol
1592 in all the symbols for which we are making plt entries. The
1593 first entry in the procedure linkage table is reserved. */
1594 /* We have to count backwards here, and the result is only valid as
1595 an index into .got.plt and its relocations. FIXME: Constants... */
1596 bfd_vma gotplt_index = gotplt_offset/4 - 3;
1597
1598 /* Get the offset into the .got table of the entry that corresponds
1599 to this function. Note that we embed knowledge that "incoming"
1600 .got goes after .got.plt in the output without padding (pointer
1601 aligned). However, that knowledge is present in several other
c152c796 1602 places too. */
915e5146
HPN
1603 bfd_vma got_offset
1604 = (has_gotplt
1605 ? gotplt_offset
1606 : h->got.offset + elf_cris_hash_table(info)->next_gotplt_entry);
1607
1608 /* This symbol has an entry in the procedure linkage table. Set it
1609 up. */
1610
1611 BFD_ASSERT (h->dynindx != -1);
1612
1613 splt = bfd_get_section_by_name (dynobj, ".plt");
1614 sgot = bfd_get_section_by_name (dynobj, ".got");
1615 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1616 srela = bfd_get_section_by_name (dynobj, ".rela.plt");
1617 BFD_ASSERT (splt != NULL && sgotplt != NULL
1618 && (! has_gotplt || srela != NULL));
1619
1620 got_base = sgotplt->output_section->vma + sgotplt->output_offset;
1621
1622 /* Fill in the entry in the procedure linkage table. */
1623 if (! info->shared)
1624 {
bac23f82
HPN
1625 memcpy (splt->contents + h->plt.offset, plt_entry,
1626 plt_entry_size);
915e5146
HPN
1627
1628 /* We need to enter the absolute address of the GOT entry here. */
1629 bfd_put_32 (output_bfd, got_base + got_offset,
1630 splt->contents + h->plt.offset + plt_off1);
1631 }
1632 else
1633 {
bac23f82
HPN
1634 memcpy (splt->contents + h->plt.offset, plt_pic_entry,
1635 plt_entry_size);
915e5146
HPN
1636 bfd_put_32 (output_bfd, got_offset,
1637 splt->contents + h->plt.offset + plt_off1);
1638 }
1639
1640 /* Fill in the plt entry and make a relocation, if this is a "real"
1641 PLT entry. */
1642 if (has_gotplt)
1643 {
bac23f82 1644 /* Fill in the offset to the reloc table. */
915e5146
HPN
1645 bfd_put_32 (output_bfd,
1646 gotplt_index * sizeof (Elf32_External_Rela),
1647 splt->contents + h->plt.offset + plt_off2);
1648
1649 /* Fill in the offset to the first PLT entry, where to "jump". */
bac23f82
HPN
1650 bfd_put_32 (output_bfd,
1651 - (h->plt.offset + plt_off3 + plt_off3_value_bias),
915e5146
HPN
1652 splt->contents + h->plt.offset + plt_off3);
1653
1654 /* Fill in the entry in the global offset table with the address of
1655 the relocating stub. */
1656 bfd_put_32 (output_bfd,
1657 (splt->output_section->vma
1658 + splt->output_offset
1659 + h->plt.offset
bac23f82 1660 + plt_stub_offset),
915e5146
HPN
1661 sgotplt->contents + got_offset);
1662
1663 /* Fill in the entry in the .rela.plt section. */
1664 rela.r_offset = (sgotplt->output_section->vma
1665 + sgotplt->output_offset
1666 + got_offset);
1667 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_JUMP_SLOT);
1668 rela.r_addend = 0;
947216bf
AM
1669 loc = srela->contents + gotplt_index * sizeof (Elf32_External_Rela);
1670 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
915e5146
HPN
1671 }
1672
f5385ebf 1673 if (!h->def_regular)
915e5146
HPN
1674 {
1675 /* Mark the symbol as undefined, rather than as defined in
1676 the .plt section. Leave the value alone. */
1677 sym->st_shndx = SHN_UNDEF;
1678
1679 /* FIXME: From elf32-sparc.c 2001-02-19 (1.18). I still don't
1680 know whether resetting the value is significant; if it really
1681 is, rather than a quirk or bug in the sparc port, then I
1682 believe we'd see this elsewhere. */
1683 /* If the symbol is weak, we do need to clear the value.
1684 Otherwise, the PLT entry would provide a definition for
1685 the symbol even if the symbol wasn't defined anywhere,
1686 and so the symbol would never be NULL. */
f5385ebf 1687 if (!h->ref_regular_nonweak)
915e5146
HPN
1688 sym->st_value = 0;
1689 }
1690 }
1691
e4a2175c
HPN
1692 /* For an ordinary program, we emit .got relocs only for symbols that
1693 are in the dynamic-symbols table and are either defined by the
1694 program or are undefined weak symbols, or are function symbols
1695 where we do not output a PLT: the PLT reloc was output above and all
1696 references to the function symbol are redirected to the PLT. */
4d96d128 1697 if (h->got.offset != (bfd_vma) -1
6849c52f
HPN
1698 && (info->shared
1699 || (h->dynindx != -1
e4a2175c 1700 && h->plt.offset == (bfd_vma) -1
f5385ebf 1701 && !h->def_regular
6849c52f 1702 && h->root.type != bfd_link_hash_undefweak)))
915e5146
HPN
1703 {
1704 asection *sgot;
1705 asection *srela;
1706 Elf_Internal_Rela rela;
947216bf 1707 bfd_byte *loc;
dc810e39 1708 bfd_byte *where;
915e5146
HPN
1709
1710 /* This symbol has an entry in the global offset table. Set it up. */
1711
1712 sgot = bfd_get_section_by_name (dynobj, ".got");
1713 srela = bfd_get_section_by_name (dynobj, ".rela.got");
1714 BFD_ASSERT (sgot != NULL && srela != NULL);
1715
1716 rela.r_offset = (sgot->output_section->vma
1717 + sgot->output_offset
dc810e39 1718 + (h->got.offset &~ (bfd_vma) 1));
915e5146
HPN
1719
1720 /* If this is a static link, or it is a -Bsymbolic link and the
1721 symbol is defined locally or was forced to be local because
1722 of a version file, we just want to emit a RELATIVE reloc.
1723 The entry in the global offset table will already have been
1724 initialized in the relocate_section function. */
dc810e39 1725 where = sgot->contents + (h->got.offset &~ (bfd_vma) 1);
915e5146
HPN
1726 if (! elf_hash_table (info)->dynamic_sections_created
1727 || (info->shared
1728 && (info->symbolic || h->dynindx == -1)
f5385ebf 1729 && h->def_regular))
915e5146
HPN
1730 {
1731 rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
dc810e39 1732 rela.r_addend = bfd_get_signed_32 (output_bfd, where);
915e5146
HPN
1733 }
1734 else
1735 {
dc810e39 1736 bfd_put_32 (output_bfd, (bfd_vma) 0, where);
915e5146
HPN
1737 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_GLOB_DAT);
1738 rela.r_addend = 0;
1739 }
1740
947216bf
AM
1741 loc = srela->contents;
1742 loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
1743 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
915e5146
HPN
1744 }
1745
f5385ebf 1746 if (h->needs_copy)
915e5146
HPN
1747 {
1748 asection *s;
1749 Elf_Internal_Rela rela;
947216bf 1750 bfd_byte *loc;
915e5146
HPN
1751
1752 /* This symbol needs a copy reloc. Set it up. */
1753
1754 BFD_ASSERT (h->dynindx != -1
1755 && (h->root.type == bfd_link_hash_defined
1756 || h->root.type == bfd_link_hash_defweak));
1757
1758 s = bfd_get_section_by_name (h->root.u.def.section->owner,
1759 ".rela.bss");
1760 BFD_ASSERT (s != NULL);
1761
1762 rela.r_offset = (h->root.u.def.value
1763 + h->root.u.def.section->output_section->vma
1764 + h->root.u.def.section->output_offset);
1765 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_COPY);
1766 rela.r_addend = 0;
947216bf
AM
1767 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
1768 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
915e5146
HPN
1769 }
1770
1771 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1772 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
22edb2f1 1773 || h == elf_hash_table (info)->hgot)
915e5146
HPN
1774 sym->st_shndx = SHN_ABS;
1775
b34976b6 1776 return TRUE;
915e5146
HPN
1777}
1778\f
1779/* Finish up the dynamic sections. */
1780
b34976b6 1781static bfd_boolean
915e5146
HPN
1782elf_cris_finish_dynamic_sections (output_bfd, info)
1783 bfd *output_bfd;
1784 struct bfd_link_info *info;
1785{
1786 bfd *dynobj;
1787 asection *sgot;
1788 asection *sdyn;
1789
1790 dynobj = elf_hash_table (info)->dynobj;
1791
1792 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
1793 BFD_ASSERT (sgot != NULL);
1794 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
1795
1796 if (elf_hash_table (info)->dynamic_sections_created)
1797 {
1798 asection *splt;
1799 Elf32_External_Dyn *dyncon, *dynconend;
1800
1801 splt = bfd_get_section_by_name (dynobj, ".plt");
1802 BFD_ASSERT (splt != NULL && sdyn != NULL);
1803
1804 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 1805 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
915e5146
HPN
1806 for (; dyncon < dynconend; dyncon++)
1807 {
1808 Elf_Internal_Dyn dyn;
1809 asection *s;
1810
1811 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1812
1813 switch (dyn.d_tag)
1814 {
1815 default:
1816 break;
1817
1818 case DT_PLTGOT:
1819 s = bfd_get_section_by_name (output_bfd, ".got");
1820 BFD_ASSERT (s != NULL);
1821 dyn.d_un.d_ptr = s->vma;
1822 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1823 break;
1824
1825 case DT_JMPREL:
1826 /* Yes, we *can* have a .plt and no .plt.rela, for instance
1827 if all symbols are found in the .got (not .got.plt). */
1828 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1829 dyn.d_un.d_ptr = s != NULL ? s->vma : 0;
1830 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1831 break;
1832
1833 case DT_PLTRELSZ:
1834 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1835 if (s == NULL)
1836 dyn.d_un.d_val = 0;
915e5146 1837 else
eea6121a 1838 dyn.d_un.d_val = s->size;
915e5146
HPN
1839 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1840 break;
1841
1842 case DT_RELASZ:
1843 /* The procedure linkage table relocs (DT_JMPREL) should
1844 not be included in the overall relocs (DT_RELA).
1845 Therefore, we override the DT_RELASZ entry here to
1846 make it not include the JMPREL relocs. Since the
1847 linker script arranges for .rela.plt to follow all
1848 other relocation sections, we don't have to worry
1849 about changing the DT_RELA entry. */
1850 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1851 if (s != NULL)
eea6121a 1852 dyn.d_un.d_val -= s->size;
915e5146
HPN
1853 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1854 break;
1855 }
1856 }
1857
1858 /* Fill in the first entry in the procedure linkage table. */
eea6121a 1859 if (splt->size > 0)
915e5146 1860 {
bac23f82
HPN
1861 if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
1862 {
1863 if (info->shared)
1864 memcpy (splt->contents, elf_cris_pic_plt0_entry_v32,
1865 PLT_ENTRY_SIZE_V32);
1866 else
1867 {
1868 memcpy (splt->contents, elf_cris_plt0_entry_v32,
1869 PLT_ENTRY_SIZE_V32);
1870 bfd_put_32 (output_bfd,
1871 sgot->output_section->vma
1872 + sgot->output_offset + 4,
1873 splt->contents + 4);
1874
1875 elf_section_data (splt->output_section)->this_hdr.sh_entsize
1876 = PLT_ENTRY_SIZE_V32;
1877 }
1878 }
915e5146 1879 else
bac23f82
HPN
1880 {
1881 if (info->shared)
1882 memcpy (splt->contents, elf_cris_pic_plt0_entry,
1883 PLT_ENTRY_SIZE);
1884 else
1885 {
1886 memcpy (splt->contents, elf_cris_plt0_entry,
1887 PLT_ENTRY_SIZE);
1888 bfd_put_32 (output_bfd,
1889 sgot->output_section->vma
1890 + sgot->output_offset + 4,
1891 splt->contents + 6);
1892 bfd_put_32 (output_bfd,
1893 sgot->output_section->vma
1894 + sgot->output_offset + 8,
1895 splt->contents + 14);
1896
1897 elf_section_data (splt->output_section)->this_hdr.sh_entsize
1898 = PLT_ENTRY_SIZE;
1899 }
915e5146
HPN
1900 }
1901 }
1902 }
1903
1904 /* Fill in the first three entries in the global offset table. */
eea6121a 1905 if (sgot->size > 0)
915e5146
HPN
1906 {
1907 if (sdyn == NULL)
1908 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1909 else
1910 bfd_put_32 (output_bfd,
1911 sdyn->output_section->vma + sdyn->output_offset,
1912 sgot->contents);
1913 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1914 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1915 }
1916
1917 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1918
b34976b6 1919 return TRUE;
06c15ad7
HPN
1920}
1921\f
1922/* Return the section that should be marked against GC for a given
1923 relocation. */
1924
1925static asection *
1e2f5b6e 1926cris_elf_gc_mark_hook (sec, info, rel, h, sym)
b34976b6
AM
1927 asection *sec;
1928 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1929 Elf_Internal_Rela *rel;
1930 struct elf_link_hash_entry *h;
1931 Elf_Internal_Sym *sym;
06c15ad7
HPN
1932{
1933 if (h != NULL)
1934 {
1935 switch (ELF32_R_TYPE (rel->r_info))
1936 {
1937 case R_CRIS_GNU_VTINHERIT:
1938 case R_CRIS_GNU_VTENTRY:
1939 break;
1940
1941 default:
1942 switch (h->root.type)
1943 {
1944 case bfd_link_hash_defined:
1945 case bfd_link_hash_defweak:
1946 return h->root.u.def.section;
1947
1948 case bfd_link_hash_common:
1949 return h->root.u.c.p->section;
1950
1951 default:
1952 break;
1953 }
1954 }
1955 }
1956 else
1e2f5b6e 1957 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
06c15ad7
HPN
1958
1959 return NULL;
1960}
1961
1962/* Update the got entry reference counts for the section being removed. */
1963
b34976b6 1964static bfd_boolean
06c15ad7 1965cris_elf_gc_sweep_hook (abfd, info, sec, relocs)
b34976b6
AM
1966 bfd *abfd ATTRIBUTE_UNUSED;
1967 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1968 asection *sec ATTRIBUTE_UNUSED;
1969 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
06c15ad7 1970{
915e5146
HPN
1971 Elf_Internal_Shdr *symtab_hdr;
1972 struct elf_link_hash_entry **sym_hashes;
1973 bfd_signed_vma *local_got_refcounts;
1974 const Elf_Internal_Rela *rel, *relend;
915e5146
HPN
1975 bfd *dynobj;
1976 asection *sgot;
1977 asection *srelgot;
1978
915e5146
HPN
1979 dynobj = elf_hash_table (info)->dynobj;
1980 if (dynobj == NULL)
b34976b6 1981 return TRUE;
915e5146 1982
babfd660
KH
1983 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1984 sym_hashes = elf_sym_hashes (abfd);
1985 local_got_refcounts = elf_local_got_refcounts (abfd);
1986
915e5146
HPN
1987 sgot = bfd_get_section_by_name (dynobj, ".got");
1988 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1989
1990 relend = relocs + sec->reloc_count;
1991 for (rel = relocs; rel < relend; rel++)
1992 {
babfd660 1993 unsigned long r_symndx;
3eb128b2
AM
1994 struct elf_link_hash_entry *h = NULL;
1995
1996 r_symndx = ELF32_R_SYM (rel->r_info);
1997 if (r_symndx >= symtab_hdr->sh_info)
1998 {
1999 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2000 while (h->root.type == bfd_link_hash_indirect
2001 || h->root.type == bfd_link_hash_warning)
2002 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2003 }
babfd660 2004
915e5146
HPN
2005 switch (ELF32_R_TYPE (rel->r_info))
2006 {
2007 case R_CRIS_16_GOT:
2008 case R_CRIS_32_GOT:
3eb128b2 2009 if (h != NULL)
915e5146 2010 {
915e5146
HPN
2011 if (h->got.refcount > 0)
2012 {
2013 --h->got.refcount;
2014 if (h->got.refcount == 0)
2015 {
2016 /* We don't need the .got entry any more. */
eea6121a
AM
2017 sgot->size -= 4;
2018 srelgot->size -= sizeof (Elf32_External_Rela);
915e5146
HPN
2019 }
2020 }
2021 break;
2022 }
2023
2024 local_got_reloc:
2025 if (local_got_refcounts != NULL)
2026 {
2027 if (local_got_refcounts[r_symndx] > 0)
2028 {
2029 --local_got_refcounts[r_symndx];
2030 if (local_got_refcounts[r_symndx] == 0)
2031 {
2032 /* We don't need the .got entry any more. */
eea6121a 2033 sgot->size -= 4;
915e5146 2034 if (info->shared)
eea6121a 2035 srelgot->size -= sizeof (Elf32_External_Rela);
915e5146
HPN
2036 }
2037 }
2038 }
2039 break;
2040
2041 case R_CRIS_16_GOTPLT:
2042 case R_CRIS_32_GOTPLT:
2043 /* For local symbols, treat these like GOT relocs. */
3eb128b2 2044 if (h == NULL)
915e5146 2045 goto local_got_reloc;
e4a2175c 2046 /* Fall through. */
3eb128b2 2047
915e5146
HPN
2048 case R_CRIS_32_PLT_GOTREL:
2049 /* FIXME: We don't garbage-collect away the .got section. */
2050 if (local_got_refcounts != NULL)
2051 local_got_refcounts[-1]--;
2052 /* Fall through. */
3eb128b2 2053
915e5146
HPN
2054 case R_CRIS_8_PCREL:
2055 case R_CRIS_16_PCREL:
2056 case R_CRIS_32_PCREL:
2057 case R_CRIS_32_PLT_PCREL:
3eb128b2 2058 if (h != NULL)
915e5146 2059 {
0a4787a0
HPN
2060 if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2061 && h->plt.refcount > 0)
915e5146
HPN
2062 --h->plt.refcount;
2063 }
2064 break;
2065
2066 default:
2067 break;
2068 }
2069 }
2070
b34976b6 2071 return TRUE;
06c15ad7
HPN
2072}
2073
915e5146
HPN
2074/* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
2075 entry but we found we will not create any. Called when we find we will
4d96d128
HPN
2076 not have any PLT for this symbol, by for example
2077 elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
2078 or elf_cris_size_dynamic_sections if no dynamic sections will be
2079 created (we're only linking static objects). */
915e5146 2080
b34976b6 2081static bfd_boolean
915e5146
HPN
2082elf_cris_adjust_gotplt_to_got (h, p)
2083 struct elf_cris_link_hash_entry *h;
2084 PTR p;
2085{
2086 struct bfd_link_info *info = (struct bfd_link_info *) p;
915e5146 2087
e92d460e
AM
2088 if (h->root.root.type == bfd_link_hash_warning)
2089 h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
2090
915e5146
HPN
2091 /* If nobody wanted a GOTPLT with this symbol, we're done. */
2092 if (h->gotplt_refcount <= 0)
b34976b6 2093 return TRUE;
915e5146
HPN
2094
2095 if (h->root.got.refcount > 0)
2096 {
2097 /* There's a GOT entry for this symbol. Just adjust the refcount.
2098 Probably not necessary at this stage, but keeping it accurate
2099 helps avoiding surprises later. */
2100 h->root.got.refcount += h->gotplt_refcount;
5e0f5ae3 2101 h->gotplt_refcount = 0;
915e5146
HPN
2102 }
2103 else
2104 {
4d96d128 2105 /* No GOT entry for this symbol. We need to create one. */
8d1d654f
AM
2106 bfd *dynobj = elf_hash_table (info)->dynobj;
2107 asection *sgot;
2108 asection *srelgot;
2109
2110 BFD_ASSERT (dynobj != NULL);
2111 sgot = bfd_get_section_by_name (dynobj, ".got");
2112 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
915e5146
HPN
2113
2114 /* Put an accurate refcount there. */
2115 h->root.got.refcount = h->gotplt_refcount;
2116
5e0f5ae3 2117 h->gotplt_refcount = 0;
915e5146 2118
44aa49bb
HPN
2119 /* We always have a .got and a .rela.got section if there were
2120 GOTPLT relocs in input. */
2121 BFD_ASSERT (sgot != NULL && srelgot != NULL);
915e5146
HPN
2122
2123 /* Allocate space in the .got section. */
eea6121a 2124 sgot->size += 4;
915e5146
HPN
2125
2126 /* Allocate relocation space. */
eea6121a 2127 srelgot->size += sizeof (Elf32_External_Rela);
915e5146
HPN
2128 }
2129
b34976b6 2130 return TRUE;
915e5146
HPN
2131}
2132
2133/* Try to fold PLT entries with GOT entries. There are two cases when we
2134 want to do this:
2135
2136 - When all PLT references are GOTPLT references, and there are GOT
e4a2175c
HPN
2137 references, and this is not the executable. We don't have to
2138 generate a PLT at all.
915e5146 2139
e4a2175c
HPN
2140 - When there are both (ordinary) PLT references and GOT references,
2141 and this isn't the executable.
915e5146 2142 We want to make the PLT reference use the ordinary GOT entry rather
e4a2175c
HPN
2143 than R_CRIS_JUMP_SLOT, a run-time dynamically resolved GOTPLT entry,
2144 since the GOT entry will have to be resolved at startup anyway.
915e5146
HPN
2145
2146 Though the latter case is handled when room for the PLT is allocated,
2147 not here.
2148
e4a2175c
HPN
2149 By folding into the GOT, we may need a round-trip to a PLT in the
2150 executable for calls, a loss in performance. Still, losing a
2151 reloc is a win in size and at least in start-up time.
2152
915e5146
HPN
2153 Note that this function is called before symbols are forced local by
2154 version scripts. The differing cases are handled by
2155 elf_cris_hide_symbol. */
2156
b34976b6 2157static bfd_boolean
915e5146
HPN
2158elf_cris_try_fold_plt_to_got (h, p)
2159 struct elf_cris_link_hash_entry *h;
2160 PTR p;
2161{
2162 struct bfd_link_info *info = (struct bfd_link_info *) p;
2163
2164 /* If there are no GOT references for this symbol, we can't fold any
2165 other reference so there's nothing to do. Likewise if there are no
2166 PLT references; GOTPLT references included. */
2167 if (h->root.got.refcount <= 0 || h->root.plt.refcount <= 0)
b34976b6 2168 return TRUE;
915e5146
HPN
2169
2170 /* GOTPLT relocs are supposed to be included into the PLT refcount. */
2171 BFD_ASSERT (h->gotplt_refcount <= h->root.plt.refcount);
2172
2173 if (h->gotplt_refcount == h->root.plt.refcount)
2174 {
4d96d128 2175 /* The only PLT references are GOTPLT references, and there are GOT
915e5146
HPN
2176 references. Convert PLT to GOT references. */
2177 if (! elf_cris_adjust_gotplt_to_got (h, info))
b34976b6 2178 return FALSE;
915e5146
HPN
2179
2180 /* Clear the PLT references, so no PLT will be created. */
2181 h->root.plt.offset = (bfd_vma) -1;
2182 }
2183
b34976b6 2184 return TRUE;
915e5146
HPN
2185}
2186
2187/* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
2188 to use a GOT entry (and create one) rather than requiring a GOTPLT
2189 entry. */
2190
2191static void
e5094212 2192elf_cris_hide_symbol (info, h, force_local)
915e5146
HPN
2193 struct bfd_link_info *info;
2194 struct elf_link_hash_entry *h;
b34976b6 2195 bfd_boolean force_local;
915e5146
HPN
2196{
2197 elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry *) h, info);
2198
e5094212 2199 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
915e5146
HPN
2200}
2201
2202/* Adjust a symbol defined by a dynamic object and referenced by a
2203 regular object. The current definition is in some section of the
2204 dynamic object, but we're not including those sections. We have to
2205 change the definition to something the rest of the link can
2206 understand. */
2207
b34976b6 2208static bfd_boolean
915e5146
HPN
2209elf_cris_adjust_dynamic_symbol (info, h)
2210 struct bfd_link_info *info;
2211 struct elf_link_hash_entry *h;
2212{
2213 bfd *dynobj;
2214 asection *s;
2215 unsigned int power_of_two;
bac23f82 2216 bfd_size_type plt_entry_size;
915e5146
HPN
2217
2218 dynobj = elf_hash_table (info)->dynobj;
2219
2220 /* Make sure we know what is going on here. */
2221 BFD_ASSERT (dynobj != NULL
f5385ebf 2222 && (h->needs_plt
f6e332e6 2223 || h->u.weakdef != NULL
f5385ebf
AM
2224 || (h->def_dynamic
2225 && h->ref_regular
2226 && !h->def_regular)));
915e5146 2227
bac23f82
HPN
2228 plt_entry_size
2229 = (bfd_get_mach (dynobj) == bfd_mach_cris_v32
2230 ? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE);
2231
915e5146
HPN
2232 /* If this is a function, put it in the procedure linkage table. We
2233 will fill in the contents of the procedure linkage table later,
2234 when we know the address of the .got section. */
2235 if (h->type == STT_FUNC
f5385ebf 2236 || h->needs_plt)
915e5146 2237 {
6849c52f
HPN
2238 /* If we link a program (not a DSO), we'll get rid of unnecessary
2239 PLT entries; we point to the actual symbols -- even for pic
2240 relocs, because a program built with -fpic should have the same
2241 result as one built without -fpic, specifically considering weak
2242 symbols.
2243 FIXME: m68k and i386 differ here, for unclear reasons. */
915e5146 2244 if (! info->shared
f5385ebf 2245 && !h->def_dynamic)
915e5146
HPN
2246 {
2247 /* This case can occur if we saw a PLT reloc in an input file,
6849c52f
HPN
2248 but the symbol was not defined by a dynamic object. In such
2249 a case, we don't actually need to build a procedure linkage
2250 table, and we can just do an absolute or PC reloc instead, or
4d96d128 2251 change a .got.plt index to a .got index for GOTPLT relocs. */
f5385ebf
AM
2252 BFD_ASSERT (h->needs_plt);
2253 h->needs_plt = 0;
915e5146 2254 h->plt.offset = (bfd_vma) -1;
915e5146
HPN
2255 return
2256 elf_cris_adjust_gotplt_to_got ((struct
2257 elf_cris_link_hash_entry *) h,
2258 info);
2259 }
2260
e4a2175c
HPN
2261 /* If we had a R_CRIS_GLOB_DAT that didn't have to point to a PLT;
2262 where a pointer-equivalent symbol was unimportant (i.e. more
2263 like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid
2264 of the PLT. We can't for the executable, because the GOT
2265 entries will point to the PLT there (and be constant). */
2266 if (info->shared
2267 && !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry*)
2268 h, info))
b34976b6 2269 return FALSE;
915e5146
HPN
2270
2271 /* GC or folding may have rendered this entry unused. */
2272 if (h->plt.refcount <= 0)
2273 {
f5385ebf 2274 h->needs_plt = 0;
915e5146 2275 h->plt.offset = (bfd_vma) -1;
b34976b6 2276 return TRUE;
915e5146
HPN
2277 }
2278
2279 /* Make sure this symbol is output as a dynamic symbol. */
2280 if (h->dynindx == -1)
2281 {
c152c796 2282 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2283 return FALSE;
915e5146
HPN
2284 }
2285
2286 s = bfd_get_section_by_name (dynobj, ".plt");
2287 BFD_ASSERT (s != NULL);
2288
2289 /* If this is the first .plt entry, make room for the special
2290 first entry. */
eea6121a 2291 if (s->size == 0)
bac23f82 2292 s->size += plt_entry_size;
915e5146
HPN
2293
2294 /* If this symbol is not defined in a regular file, and we are
2295 not generating a shared library, then set the symbol to this
6849c52f 2296 location in the .plt. */
915e5146 2297 if (!info->shared
f5385ebf 2298 && !h->def_regular)
915e5146
HPN
2299 {
2300 h->root.u.def.section = s;
eea6121a 2301 h->root.u.def.value = s->size;
915e5146
HPN
2302 }
2303
4d96d128
HPN
2304 /* If there's already a GOT entry, use that, not a .got.plt. A
2305 GOT field still has a reference count when we get here; it's
e4a2175c
HPN
2306 not yet changed to an offset. We can't do this for an
2307 executable, because then the reloc associated with the PLT
2308 would get a non-PLT reloc pointing to the PLT. FIXME: Move
2309 this to elf_cris_try_fold_plt_to_got. */
2310 if (info->shared && h->got.refcount > 0)
915e5146
HPN
2311 {
2312 h->got.refcount += h->plt.refcount;
2313
2314 /* Mark the PLT offset to use the GOT entry by setting the low
2315 bit in the plt offset; it is always a multiple of
bac23f82
HPN
2316 plt_entry_size (which is at least a multiple of 2). */
2317 BFD_ASSERT ((s->size % plt_entry_size) == 0);
915e5146
HPN
2318
2319 /* Change the PLT refcount to an offset. */
eea6121a 2320 h->plt.offset = s->size;
915e5146
HPN
2321
2322 /* By not setting gotplt_offset (i.e. it remains at 0), we signal
2323 that the got entry should be used instead. */
2324 BFD_ASSERT (((struct elf_cris_link_hash_entry *)
2325 h)->gotplt_offset == 0);
2326
2327 /* Make room for this entry. */
bac23f82 2328 s->size += plt_entry_size;
915e5146 2329
b34976b6 2330 return TRUE;
915e5146
HPN
2331 }
2332
2333 /* No GOT reference for this symbol; prepare for an ordinary PLT. */
eea6121a 2334 h->plt.offset = s->size;
915e5146
HPN
2335
2336 /* Make room for this entry. */
bac23f82 2337 s->size += plt_entry_size;
915e5146
HPN
2338
2339 /* We also need to make an entry in the .got.plt section, which
2340 will be placed in the .got section by the linker script. */
2341 ((struct elf_cris_link_hash_entry *) h)->gotplt_offset
2342 = elf_cris_hash_table (info)->next_gotplt_entry;
2343 elf_cris_hash_table (info)->next_gotplt_entry += 4;
2344
2345 s = bfd_get_section_by_name (dynobj, ".got.plt");
2346 BFD_ASSERT (s != NULL);
eea6121a 2347 s->size += 4;
915e5146
HPN
2348
2349 /* We also need to make an entry in the .rela.plt section. */
2350
2351 s = bfd_get_section_by_name (dynobj, ".rela.plt");
2352 BFD_ASSERT (s != NULL);
eea6121a 2353 s->size += sizeof (Elf32_External_Rela);
915e5146 2354
b34976b6 2355 return TRUE;
915e5146
HPN
2356 }
2357
2358 /* Reinitialize the plt offset now that it is not used as a reference
2359 count any more. */
2360 h->plt.offset = (bfd_vma) -1;
2361
2362 /* If this is a weak symbol, and there is a real definition, the
2363 processor independent code will have arranged for us to see the
2364 real definition first, and we can just use the same value. */
f6e332e6 2365 if (h->u.weakdef != NULL)
915e5146 2366 {
f6e332e6
AM
2367 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2368 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2369 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2370 h->root.u.def.value = h->u.weakdef->root.u.def.value;
b34976b6 2371 return TRUE;
915e5146
HPN
2372 }
2373
2374 /* This is a reference to a symbol defined by a dynamic object which
2375 is not a function. */
2376
2377 /* If we are creating a shared library, we must presume that the
2378 only references to the symbol are via the global offset table.
2379 For such cases we need not do anything here; the relocations will
2380 be handled correctly by relocate_section. */
2381 if (info->shared)
b34976b6 2382 return TRUE;
915e5146
HPN
2383
2384 /* If there are no references to this symbol that do not use the
2385 GOT, we don't need to generate a copy reloc. */
f5385ebf 2386 if (!h->non_got_ref)
b34976b6 2387 return TRUE;
915e5146 2388
909272ee
AM
2389 if (h->size == 0)
2390 {
2391 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
2392 h->root.root.string);
2393 return TRUE;
2394 }
2395
915e5146
HPN
2396 /* We must allocate the symbol in our .dynbss section, which will
2397 become part of the .bss section of the executable. There will be
2398 an entry for this symbol in the .dynsym section. The dynamic
2399 object will contain position independent code, so all references
2400 from the dynamic object to this symbol will go through the global
2401 offset table. The dynamic linker will use the .dynsym entry to
2402 determine the address it must put in the global offset table, so
2403 both the dynamic object and the regular object will refer to the
2404 same memory location for the variable. */
2405
2406 s = bfd_get_section_by_name (dynobj, ".dynbss");
2407 BFD_ASSERT (s != NULL);
2408
2409 /* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
2410 copy the initial value out of the dynamic object and into the
2411 runtime process image. We need to remember the offset into the
2412 .rela.bss section we are going to use. */
2413 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2414 {
2415 asection *srel;
2416
2417 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
2418 BFD_ASSERT (srel != NULL);
eea6121a 2419 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 2420 h->needs_copy = 1;
915e5146
HPN
2421 }
2422
2423 /* Historic precedent: m68k and i386 allow max 8-byte alignment for the
2424 thing to copy; so do we. */
2425
2426 /* We need to figure out the alignment required for this symbol. I
2427 have no idea how ELF linkers handle this. */
2428 power_of_two = bfd_log2 (h->size);
2429 if (power_of_two > 3)
2430 power_of_two = 3;
2431
2432 /* Apply the required alignment. */
eea6121a 2433 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
915e5146
HPN
2434 if (power_of_two > bfd_get_section_alignment (dynobj, s))
2435 {
2436 if (!bfd_set_section_alignment (dynobj, s, power_of_two))
b34976b6 2437 return FALSE;
915e5146
HPN
2438 }
2439
2440 /* Define the symbol as being at this point in the section. */
2441 h->root.u.def.section = s;
eea6121a 2442 h->root.u.def.value = s->size;
915e5146
HPN
2443
2444 /* Increment the section size to make room for the symbol. */
eea6121a 2445 s->size += h->size;
915e5146 2446
b34976b6 2447 return TRUE;
915e5146
HPN
2448}
2449
2450/* Look through the relocs for a section during the first phase. */
a7c10850 2451
b34976b6 2452static bfd_boolean
06c15ad7
HPN
2453cris_elf_check_relocs (abfd, info, sec, relocs)
2454 bfd *abfd;
2455 struct bfd_link_info *info;
2456 asection *sec;
2457 const Elf_Internal_Rela *relocs;
2458{
915e5146 2459 bfd *dynobj;
06c15ad7
HPN
2460 Elf_Internal_Shdr *symtab_hdr;
2461 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
915e5146 2462 bfd_signed_vma *local_got_refcounts;
06c15ad7
HPN
2463 const Elf_Internal_Rela *rel;
2464 const Elf_Internal_Rela *rel_end;
915e5146
HPN
2465 asection *sgot;
2466 asection *srelgot;
2467 asection *sreloc;
a7c10850 2468
1049f94e 2469 if (info->relocatable)
b34976b6 2470 return TRUE;
a7c10850 2471
915e5146 2472 dynobj = elf_hash_table (info)->dynobj;
06c15ad7
HPN
2473 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2474 sym_hashes = elf_sym_hashes (abfd);
a7c10850 2475 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
915e5146
HPN
2476 local_got_refcounts = elf_local_got_refcounts (abfd);
2477
2478 sgot = NULL;
2479 srelgot = NULL;
2480 sreloc = NULL;
2481
06c15ad7
HPN
2482 if (!elf_bad_symtab (abfd))
2483 sym_hashes_end -= symtab_hdr->sh_info;
a7c10850 2484
06c15ad7
HPN
2485 rel_end = relocs + sec->reloc_count;
2486 for (rel = relocs; rel < rel_end; rel++)
2487 {
2488 struct elf_link_hash_entry *h;
2489 unsigned long r_symndx;
915e5146 2490 enum elf_cris_reloc_type r_type;
a7c10850 2491
06c15ad7
HPN
2492 r_symndx = ELF32_R_SYM (rel->r_info);
2493 if (r_symndx < symtab_hdr->sh_info)
2494 h = NULL;
2495 else
973a3492
L
2496 {
2497 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2498 while (h->root.type == bfd_link_hash_indirect
2499 || h->root.type == bfd_link_hash_warning)
2500 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2501 }
a7c10850 2502
915e5146
HPN
2503 r_type = ELF32_R_TYPE (rel->r_info);
2504
2505 /* Some relocs require linker-created sections; we need to hang them
2506 on the first input bfd we found that contained dynamic relocs. */
2507 switch (r_type)
2508 {
2509 case R_CRIS_16_GOT:
2510 case R_CRIS_32_GOT:
2511 case R_CRIS_32_GOTREL:
2512 case R_CRIS_32_PLT_GOTREL:
2513 case R_CRIS_32_PLT_PCREL:
2514 case R_CRIS_16_GOTPLT:
2515 case R_CRIS_32_GOTPLT:
2516 if (dynobj == NULL)
2517 {
2518 elf_hash_table (info)->dynobj = dynobj = abfd;
2519
bac23f82
HPN
2520 /* We could handle this if we can get a handle on the
2521 output bfd in elf_cris_adjust_dynamic_symbol. Failing
2522 that, we must insist on dynobj being a specific mach. */
2523 if (bfd_get_mach (dynobj) == bfd_mach_cris_v10_v32)
2524 {
2525 (*_bfd_error_handler)
2526 (_("%B, section %A:\n v10/v32 compatible object %s"
2527 " must not contain a PIC relocation"),
2528 abfd, sec);
2529 return FALSE;
2530 }
2531
915e5146
HPN
2532 /* Create the .got section, so we can assume it's always
2533 present whenever there's a dynobj. */
2534 if (!_bfd_elf_create_got_section (dynobj, info))
b34976b6 2535 return FALSE;
915e5146
HPN
2536 }
2537 break;
2538
2539 default:
2540 break;
2541 }
2542
2543 /* Some relocs require a global offset table (but perhaps not a
2544 specific GOT entry). */
4d96d128 2545 switch (r_type)
915e5146 2546 {
44aa49bb
HPN
2547 /* For R_CRIS_16_GOTPLT and R_CRIS_32_GOTPLT, we need a GOT
2548 entry only for local symbols. Unfortunately, we don't know
2549 until later on if there's a version script that forces the
2550 symbol local. We must have the .rela.got section in place
2551 before we know if the symbol looks global now, so we need
2552 to treat the reloc just like for R_CRIS_16_GOT and
2553 R_CRIS_32_GOT. */
2554 case R_CRIS_16_GOTPLT:
2555 case R_CRIS_32_GOTPLT:
915e5146
HPN
2556 case R_CRIS_16_GOT:
2557 case R_CRIS_32_GOT:
44aa49bb
HPN
2558 if (srelgot == NULL
2559 && (h != NULL || info->shared))
2560 {
2561 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2562 if (srelgot == NULL)
2563 {
3496cb2a
L
2564 srelgot = bfd_make_section_with_flags (dynobj,
2565 ".rela.got",
2566 (SEC_ALLOC
2567 | SEC_LOAD
2568 | SEC_HAS_CONTENTS
2569 | SEC_IN_MEMORY
2570 | SEC_LINKER_CREATED
2571 | SEC_READONLY));
44aa49bb 2572 if (srelgot == NULL
44aa49bb 2573 || !bfd_set_section_alignment (dynobj, srelgot, 2))
b34976b6 2574 return FALSE;
44aa49bb
HPN
2575 }
2576 }
2577 /* Fall through. */
2578
915e5146
HPN
2579 case R_CRIS_32_GOTREL:
2580 case R_CRIS_32_PLT_GOTREL:
2581 if (sgot == NULL)
2582 sgot = bfd_get_section_by_name (dynobj, ".got");
2583
2584 if (local_got_refcounts == NULL)
2585 {
dc810e39 2586 bfd_size_type amt;
915e5146
HPN
2587
2588 /* We use index local_got_refcounts[-1] to count all
2589 GOT-relative relocations that do not have explicit
2590 GOT entries. */
dc810e39
AM
2591 amt = symtab_hdr->sh_info + 1;
2592 amt *= sizeof (bfd_signed_vma);
51b64d56 2593 local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, amt));
915e5146 2594 if (local_got_refcounts == NULL)
b34976b6 2595 return FALSE;
915e5146
HPN
2596
2597 local_got_refcounts++;
2598 elf_local_got_refcounts (abfd) = local_got_refcounts;
2599 }
2600 break;
2601
2602 default:
2603 break;
2604 }
2605
4d96d128 2606 switch (r_type)
06c15ad7 2607 {
915e5146
HPN
2608 case R_CRIS_16_GOTPLT:
2609 case R_CRIS_32_GOTPLT:
2610 /* Mark that we need a GOT entry if the PLT entry (and its GOT
2611 entry) is eliminated. We can only do this for a non-local
2612 symbol. */
2613 if (h != NULL)
2614 {
2615 ((struct elf_cris_link_hash_entry *) h)->gotplt_refcount++;
2616 goto handle_gotplt_reloc;
2617 }
2618 /* If h is NULL then this is a local symbol, and we must make a
2619 GOT entry for it, so handle it like a GOT reloc. */
2620 /* Fall through. */
2621
2622 case R_CRIS_16_GOT:
2623 case R_CRIS_32_GOT:
2624 /* This symbol requires a global offset table entry. */
915e5146
HPN
2625 if (h != NULL)
2626 {
51b64d56 2627 if (h->got.refcount == 0)
915e5146 2628 {
915e5146
HPN
2629 /* Make sure this symbol is output as a dynamic symbol. */
2630 if (h->dynindx == -1)
2631 {
c152c796 2632 if (!bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2633 return FALSE;
915e5146
HPN
2634 }
2635
2636 /* Allocate space in the .got section. */
eea6121a 2637 sgot->size += 4;
915e5146 2638 /* Allocate relocation space. */
eea6121a 2639 srelgot->size += sizeof (Elf32_External_Rela);
915e5146 2640 }
51b64d56 2641 h->got.refcount++;
915e5146
HPN
2642 }
2643 else
2644 {
2645 /* This is a global offset table entry for a local symbol. */
51b64d56 2646 if (local_got_refcounts[r_symndx] == 0)
915e5146 2647 {
eea6121a 2648 sgot->size += 4;
915e5146
HPN
2649 if (info->shared)
2650 {
2651 /* If we are generating a shared object, we need to
2652 output a R_CRIS_RELATIVE reloc so that the dynamic
2653 linker can adjust this GOT entry. */
eea6121a 2654 srelgot->size += sizeof (Elf32_External_Rela);
915e5146
HPN
2655 }
2656 }
51b64d56 2657 local_got_refcounts[r_symndx]++;
915e5146
HPN
2658 }
2659 break;
2660
2661 case R_CRIS_32_GOTREL:
2662 /* This reference requires a global offset table.
2663 FIXME: The actual refcount isn't used currently; the .got
2664 section can't be removed if there were any references in the
2665 input. */
2666 local_got_refcounts[-1]++;
2667 break;
2668
2669 handle_gotplt_reloc:
2670
2671 case R_CRIS_32_PLT_GOTREL:
2672 /* This reference requires a global offset table. */
2673 local_got_refcounts[-1]++;
2674 /* Fall through. */
2675
2676 case R_CRIS_32_PLT_PCREL:
2677 /* This symbol requires a procedure linkage table entry. We
2678 actually build the entry in adjust_dynamic_symbol,
2679 because this might be a case of linking PIC code which is
2680 never referenced by a dynamic object, in which case we
2681 don't need to generate a procedure linkage table entry
2682 after all. */
2683
ada1953e
HPN
2684 /* Beware: if we'd check for visibility of the symbol here
2685 (and not marking the need for a PLT when non-visible), we'd
2686 get into trouble with keeping handling consistent with
2687 regards to relocs found before definition and GOTPLT
2688 handling. Eliminable PLT entries will be dealt with later
2689 anyway. */
2690 if (h == NULL)
915e5146
HPN
2691 continue;
2692
f5385ebf 2693 h->needs_plt = 1;
51b64d56 2694 h->plt.refcount++;
915e5146
HPN
2695 break;
2696
2697 case R_CRIS_8:
2698 case R_CRIS_16:
2699 case R_CRIS_32:
2700 /* Let's help debug shared library creation. Any of these
2701 relocs can be used in shared libs, but pages containing them
2702 cannot be shared. Don't warn for sections we don't care
2703 about, such as debug sections or non-constant sections. We
2704 can't help tables of (global) function pointers, for example,
2705 though they must be emitted in a data section to avoid having
2706 impure text sections. */
2707 if (info->shared
2708 && (sec->flags & SEC_ALLOC) != 0
2709 && (sec->flags & SEC_READONLY) != 0)
2710 {
2711 /* FIXME: How do we make this optionally a warning only? */
8f615d07 2712 (*_bfd_error_handler)
bac23f82
HPN
2713 (_("%B, section %A:\n relocation %s should not"
2714 " be used in a shared object; recompile with -fPIC"),
d003868e
AM
2715 abfd,
2716 sec,
8f615d07 2717 cris_elf_howto_table[r_type].name);
915e5146
HPN
2718 }
2719 /* Fall through. */
2720
2721 case R_CRIS_8_PCREL:
2722 case R_CRIS_16_PCREL:
2723 case R_CRIS_32_PCREL:
2724 if (h != NULL)
2725 {
f5385ebf 2726 h->non_got_ref = 1;
915e5146
HPN
2727
2728 /* Make sure a plt entry is created for this symbol if it
2729 turns out to be a function defined by a dynamic object. */
0a4787a0
HPN
2730 if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2731 h->plt.refcount++;
915e5146
HPN
2732 }
2733
2734 /* If we are creating a shared library and this is not a local
2735 symbol, we need to copy the reloc into the shared library.
2736 However when linking with -Bsymbolic and this is a global
2737 symbol which is defined in an object we are including in the
2738 link (i.e., DEF_REGULAR is set), then we can resolve the
2739 reloc directly. At this point we have not seen all the input
2740 files, so it is possible that DEF_REGULAR is not set now but
2741 will be set later (it is never cleared). In case of a weak
2742 definition, DEF_REGULAR may be cleared later by a strong
2743 definition in a shared library. We account for that
2744 possibility below by storing information in the relocs_copied
2745 field of the hash table entry. A similar situation occurs
2746 when creating shared libraries and symbol visibility changes
2747 render the symbol local. */
2748
2749 /* No need to do anything if we're not creating a shared object. */
2750 if (! info->shared)
2751 break;
2752
2753 /* We don't need to handle relocs into sections not going into
2754 the "real" output. */
2755 if ((sec->flags & SEC_ALLOC) == 0)
2756 break;
2757
2758 /* We can only eliminate PC-relative relocs. */
2759 if (r_type == R_CRIS_8_PCREL
2760 || r_type == R_CRIS_16_PCREL
2761 || r_type == R_CRIS_32_PCREL)
2762 {
2763 /* If the symbol is local, then we can eliminate the reloc. */
0a4787a0 2764 if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
915e5146
HPN
2765 break;
2766
2767 /* If this is with -Bsymbolic and the symbol isn't weak, and
2768 is defined by an ordinary object (the ones we include in
2769 this shared library) then we can also eliminate the
2770 reloc. See comment above for more eliminable cases which
2771 we can't identify at this time. */
2772 if (info->symbolic
2773 && h->root.type != bfd_link_hash_defweak
f5385ebf 2774 && h->def_regular)
915e5146 2775 break;
bac23f82
HPN
2776
2777 if ((sec->flags & SEC_READONLY) != 0)
2778 {
2779 /* FIXME: How do we make this optionally a warning only? */
2780 (*_bfd_error_handler)
2781 (_("%B, section %A:\n relocation %s should not be used"
2782 " in a shared object; recompile with -fPIC"),
2783 abfd,
2784 sec,
2785 cris_elf_howto_table[r_type].name);
2786 }
915e5146
HPN
2787 }
2788
2789 /* We create a reloc section in dynobj and make room for this
2790 reloc. */
2791 if (sreloc == NULL)
2792 {
2793 const char *name;
2794
2795 name = (bfd_elf_string_from_elf_section
2796 (abfd,
2797 elf_elfheader (abfd)->e_shstrndx,
2798 elf_section_data (sec)->rel_hdr.sh_name));
2799 if (name == NULL)
b34976b6 2800 return FALSE;
915e5146
HPN
2801
2802 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2803 && strcmp (bfd_get_section_name (abfd, sec),
2804 name + 5) == 0);
2805
2806 sreloc = bfd_get_section_by_name (dynobj, name);
2807 if (sreloc == NULL)
2808 {
3496cb2a
L
2809 sreloc = bfd_make_section_with_flags (dynobj, name,
2810 (SEC_ALLOC
2811 | SEC_LOAD
2812 | SEC_HAS_CONTENTS
2813 | SEC_IN_MEMORY
2814 | SEC_LINKER_CREATED
2815 | SEC_READONLY));
915e5146 2816 if (sreloc == NULL
915e5146 2817 || !bfd_set_section_alignment (dynobj, sreloc, 2))
b34976b6 2818 return FALSE;
915e5146 2819 }
99e4ae17
AJ
2820 if (sec->flags & SEC_READONLY)
2821 info->flags |= DF_TEXTREL;
915e5146
HPN
2822 }
2823
eea6121a 2824 sreloc->size += sizeof (Elf32_External_Rela);
915e5146
HPN
2825
2826 /* If we are linking with -Bsymbolic, we count the number of PC
2827 relative relocations we have entered for this symbol, so that
2828 we can discard them again if the symbol is later defined by a
2829 regular object. We know that h is really a pointer to an
2830 elf_cris_link_hash_entry. */
4d96d128
HPN
2831 if ((r_type == R_CRIS_8_PCREL
2832 || r_type == R_CRIS_16_PCREL
2833 || r_type == R_CRIS_32_PCREL)
915e5146
HPN
2834 && info->symbolic)
2835 {
2836 struct elf_cris_link_hash_entry *eh;
2837 struct elf_cris_pcrel_relocs_copied *p;
2838
2839 eh = (struct elf_cris_link_hash_entry *) h;
2840
2841 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2842 if (p->section == sreloc)
2843 break;
2844
2845 if (p == NULL)
2846 {
2847 p = ((struct elf_cris_pcrel_relocs_copied *)
dc810e39 2848 bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
915e5146 2849 if (p == NULL)
b34976b6 2850 return FALSE;
915e5146
HPN
2851 p->next = eh->pcrel_relocs_copied;
2852 eh->pcrel_relocs_copied = p;
2853 p->section = sreloc;
2854 p->count = 0;
2855 }
2856
2857 ++p->count;
2858 }
2859 break;
2860
06c15ad7
HPN
2861 /* This relocation describes the C++ object vtable hierarchy.
2862 Reconstruct it for later use during GC. */
2863 case R_CRIS_GNU_VTINHERIT:
c152c796 2864 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 2865 return FALSE;
06c15ad7 2866 break;
a7c10850 2867
06c15ad7
HPN
2868 /* This relocation describes which C++ vtable entries are actually
2869 used. Record for later use during GC. */
2870 case R_CRIS_GNU_VTENTRY:
c152c796 2871 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 2872 return FALSE;
06c15ad7 2873 break;
4d96d128
HPN
2874
2875 default:
2876 /* Other relocs do not appear here. */
2877 bfd_set_error (bfd_error_bad_value);
b34976b6 2878 return FALSE;
06c15ad7
HPN
2879 }
2880 }
a7c10850 2881
b34976b6 2882 return TRUE;
06c15ad7 2883}
4da81684 2884
915e5146
HPN
2885/* Set the sizes of the dynamic sections. */
2886
b34976b6 2887static bfd_boolean
915e5146 2888elf_cris_size_dynamic_sections (output_bfd, info)
99e4ae17 2889 bfd *output_bfd ATTRIBUTE_UNUSED;
915e5146
HPN
2890 struct bfd_link_info *info;
2891{
2892 bfd *dynobj;
2893 asection *s;
b34976b6
AM
2894 bfd_boolean plt;
2895 bfd_boolean relocs;
915e5146
HPN
2896
2897 dynobj = elf_hash_table (info)->dynobj;
2898 BFD_ASSERT (dynobj != NULL);
2899
2900 if (elf_hash_table (info)->dynamic_sections_created)
2901 {
2902 /* Set the contents of the .interp section to the interpreter. */
893c4fe2 2903 if (info->executable)
915e5146
HPN
2904 {
2905 s = bfd_get_section_by_name (dynobj, ".interp");
2906 BFD_ASSERT (s != NULL);
eea6121a 2907 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
915e5146
HPN
2908 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2909 }
2910 }
2911 else
2912 {
2913 /* Adjust all expected GOTPLT uses to use a GOT entry instead. */
2914 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
2915 elf_cris_adjust_gotplt_to_got,
2916 (PTR) info);
2917
2918 /* We may have created entries in the .rela.got section.
2919 However, if we are not creating the dynamic sections, we will
2920 not actually use these entries. Reset the size of .rela.got,
2921 which will cause it to get stripped from the output file
2922 below. */
2923 s = bfd_get_section_by_name (dynobj, ".rela.got");
2924 if (s != NULL)
eea6121a 2925 s->size = 0;
915e5146
HPN
2926 }
2927
2928 /* If this is a -Bsymbolic shared link, then we need to discard all PC
2929 relative relocs against symbols defined in a regular object. We
2930 allocated space for them in the check_relocs routine, but we will not
2931 fill them in in the relocate_section routine. We also discard space
2932 for relocs that have become for local symbols due to symbol
4d96d128
HPN
2933 visibility changes. For programs, we discard space for relocs for
2934 symbols not referenced by any dynamic object. */
915e5146
HPN
2935 if (info->shared)
2936 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
4d96d128
HPN
2937 elf_cris_discard_excess_dso_dynamics,
2938 (PTR) info);
2939 else
2940 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
2941 elf_cris_discard_excess_program_dynamics,
915e5146
HPN
2942 (PTR) info);
2943
2944 /* The check_relocs and adjust_dynamic_symbol entry points have
2945 determined the sizes of the various dynamic sections. Allocate
2946 memory for them. */
b34976b6
AM
2947 plt = FALSE;
2948 relocs = FALSE;
915e5146
HPN
2949 for (s = dynobj->sections; s != NULL; s = s->next)
2950 {
2951 const char *name;
915e5146
HPN
2952
2953 if ((s->flags & SEC_LINKER_CREATED) == 0)
2954 continue;
2955
2956 /* It's OK to base decisions on the section name, because none
2957 of the dynobj section names depend upon the input files. */
2958 name = bfd_get_section_name (dynobj, s);
2959
915e5146
HPN
2960 if (strcmp (name, ".plt") == 0)
2961 {
c456f082
AM
2962 /* Remember whether there is a PLT. */
2963 plt = s->size != 0;
915e5146
HPN
2964 }
2965 else if (strncmp (name, ".rela", 5) == 0)
2966 {
c456f082 2967 if (s->size != 0)
915e5146 2968 {
915e5146
HPN
2969 /* Remember whether there are any reloc sections other
2970 than .rela.plt. */
2971 if (strcmp (name, ".rela.plt") != 0)
b34976b6 2972 relocs = TRUE;
915e5146 2973
915e5146
HPN
2974 /* We use the reloc_count field as a counter if we need
2975 to copy relocs into the output file. */
2976 s->reloc_count = 0;
2977 }
2978 }
c456f082
AM
2979 else if (strncmp (name, ".got", 4) != 0
2980 && strcmp (name, ".dynbss") != 0)
915e5146
HPN
2981 {
2982 /* It's not one of our sections, so don't allocate space. */
2983 continue;
2984 }
2985
c456f082 2986 if (s->size == 0)
915e5146 2987 {
c456f082
AM
2988 /* If we don't need this section, strip it from the
2989 output file. This is mostly to handle .rela.bss and
2990 .rela.plt. We must create both sections in
2991 create_dynamic_sections, because they must be created
2992 before the linker maps input sections to output
2993 sections. The linker does that before
2994 adjust_dynamic_symbol is called, and it is that
2995 function which decides whether anything needs to go
2996 into these sections. */
8423293d 2997 s->flags |= SEC_EXCLUDE;
915e5146
HPN
2998 continue;
2999 }
3000
c456f082
AM
3001 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3002 continue;
3003
915e5146
HPN
3004 /* Allocate memory for the section contents. We use bfd_zalloc here
3005 in case unused entries are not reclaimed before the section's
3006 contents are written out. This should not happen, but this way
3007 if it does, we will not write out garbage. For reloc sections,
3008 this will make entries have the type R_CRIS_NONE. */
eea6121a 3009 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
c456f082 3010 if (s->contents == NULL)
b34976b6 3011 return FALSE;
915e5146
HPN
3012 }
3013
3014 if (elf_hash_table (info)->dynamic_sections_created)
3015 {
3016 /* Add some entries to the .dynamic section. We fill in the
3017 values later, in elf_cris_finish_dynamic_sections, but we
3018 must add the entries now so that we get the correct size for
3019 the .dynamic section. The DT_DEBUG entry is filled in by the
3020 dynamic linker and used by the debugger. */
dc810e39 3021#define add_dynamic_entry(TAG, VAL) \
5a580b3a 3022 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 3023
915e5146
HPN
3024 if (!info->shared)
3025 {
dc810e39 3026 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 3027 return FALSE;
915e5146
HPN
3028 }
3029
3030 if (plt)
3031 {
dc810e39
AM
3032 if (!add_dynamic_entry (DT_PLTGOT, 0)
3033 || !add_dynamic_entry (DT_PLTRELSZ, 0)
3034 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3035 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 3036 return FALSE;
915e5146
HPN
3037 }
3038
3039 if (relocs)
3040 {
dc810e39
AM
3041 if (!add_dynamic_entry (DT_RELA, 0)
3042 || !add_dynamic_entry (DT_RELASZ, 0)
3043 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 3044 return FALSE;
915e5146
HPN
3045 }
3046
99e4ae17 3047 if ((info->flags & DF_TEXTREL) != 0)
915e5146 3048 {
dc810e39 3049 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 3050 return FALSE;
915e5146
HPN
3051 info->flags |= DF_TEXTREL;
3052 }
3053 }
dc810e39 3054#undef add_dynamic_entry
915e5146 3055
b34976b6 3056 return TRUE;
915e5146
HPN
3057}
3058
3059/* This function is called via elf_cris_link_hash_traverse if we are
3060 creating a shared object. In the -Bsymbolic case, it discards the
3061 space allocated to copy PC relative relocs against symbols which
3062 are defined in regular objects. For the normal non-symbolic case,
3063 we also discard space for relocs that have become local due to
3064 symbol visibility changes. We allocated space for them in the
3065 check_relocs routine, but we won't fill them in in the
3066 relocate_section routine. */
3067
b34976b6 3068static bfd_boolean
4d96d128 3069elf_cris_discard_excess_dso_dynamics (h, inf)
915e5146
HPN
3070 struct elf_cris_link_hash_entry *h;
3071 PTR inf;
3072{
3073 struct elf_cris_pcrel_relocs_copied *s;
3074 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3075
e92d460e
AM
3076 if (h->root.root.type == bfd_link_hash_warning)
3077 h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
3078
915e5146
HPN
3079 /* If a symbol has been forced local or we have found a regular
3080 definition for the symbolic link case, then we won't be needing
3081 any relocs. */
f5385ebf
AM
3082 if (h->root.def_regular
3083 && (h->root.forced_local
915e5146
HPN
3084 || info->symbolic))
3085 {
3086 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
eea6121a 3087 s->section->size -= s->count * sizeof (Elf32_External_Rela);
4d96d128
HPN
3088 }
3089
b34976b6 3090 return TRUE;
4d96d128
HPN
3091}
3092
3093/* This function is called via elf_cris_link_hash_traverse if we are *not*
3094 creating a shared object. We discard space for relocs for symbols put
3095 in the .got, but which we found we do not have to resolve at run-time. */
3096
b34976b6 3097static bfd_boolean
4d96d128
HPN
3098elf_cris_discard_excess_program_dynamics (h, inf)
3099 struct elf_cris_link_hash_entry *h;
3100 PTR inf;
3101{
3102 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3103
e92d460e
AM
3104 if (h->root.root.type == bfd_link_hash_warning)
3105 h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
3106
4d96d128
HPN
3107 /* If we're not creating a shared library and have a symbol which is
3108 referred to by .got references, but the symbol is defined locally,
e4a2175c
HPN
3109 (or rather, not defined by a DSO) then lose the reloc for the .got
3110 (don't allocate room for it). Likewise for relocs for something
3111 for which we create a PLT. */
f5385ebf 3112 if (!h->root.def_dynamic
e4a2175c 3113 || h->root.plt.refcount > 0)
4d96d128
HPN
3114 {
3115 if (h->root.got.refcount > 0
3116 /* The size of this section is only valid and in sync with the
3117 various reference counts if we do dynamic; don't decrement it
3118 otherwise. */
3119 && elf_hash_table (info)->dynamic_sections_created)
3120 {
3121 bfd *dynobj = elf_hash_table (info)->dynobj;
3122 asection *srelgot;
3123
3124 BFD_ASSERT (dynobj != NULL);
99c79b2e 3125
4d96d128
HPN
3126 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
3127
3128 BFD_ASSERT (srelgot != NULL);
3129
eea6121a 3130 srelgot->size -= sizeof (Elf32_External_Rela);
4d96d128
HPN
3131 }
3132
3133 /* If the locally-defined symbol isn't used by a DSO, then we don't
3134 have to export it as a dynamic symbol. This was already done for
3135 functions; doing this for all symbols would presumably not
e5dfef09
HPN
3136 introduce new problems. Of course we don't do this if we're
3137 exporting all dynamic symbols. */
0741c7be 3138 if (! info->export_dynamic
77cfaee6 3139 && h->root.dynindx != -1
f5385ebf
AM
3140 && !h->root.def_dynamic
3141 && !h->root.ref_dynamic)
e5dfef09
HPN
3142 {
3143 h->root.dynindx = -1;
3144 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
3145 h->root.dynstr_index);
3146 }
915e5146
HPN
3147 }
3148
b34976b6 3149 return TRUE;
915e5146
HPN
3150}
3151
3152/* Reject a file depending on presence and expectation of prefixed
3153 underscores on symbols. */
4da81684 3154
b34976b6 3155static bfd_boolean
4da81684
HPN
3156cris_elf_object_p (abfd)
3157 bfd *abfd;
3158{
bac23f82
HPN
3159 if (! cris_elf_set_mach_from_flags (abfd, elf_elfheader (abfd)->e_flags))
3160 return FALSE;
3161
4da81684
HPN
3162 if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
3163 return (bfd_get_symbol_leading_char (abfd) == '_');
3164 else
3165 return (bfd_get_symbol_leading_char (abfd) == 0);
3166}
3167
bac23f82
HPN
3168/* Mark presence or absence of leading underscore. Set machine type
3169 flags from mach type. */
4da81684
HPN
3170
3171static void
3172cris_elf_final_write_processing (abfd, linker)
3173 bfd *abfd;
b34976b6 3174 bfd_boolean linker ATTRIBUTE_UNUSED;
4da81684 3175{
bac23f82
HPN
3176 unsigned long e_flags = elf_elfheader (abfd)->e_flags;
3177
3178 e_flags &= ~EF_CRIS_UNDERSCORE;
4da81684 3179 if (bfd_get_symbol_leading_char (abfd) == '_')
bac23f82
HPN
3180 e_flags |= EF_CRIS_UNDERSCORE;
3181
3182 switch (bfd_get_mach (abfd))
3183 {
3184 case bfd_mach_cris_v0_v10:
3185 e_flags |= EF_CRIS_VARIANT_ANY_V0_V10;
3186 break;
3187
3188 case bfd_mach_cris_v10_v32:
3189 e_flags |= EF_CRIS_VARIANT_COMMON_V10_V32;
3190 break;
3191
3192 case bfd_mach_cris_v32:
3193 e_flags |= EF_CRIS_VARIANT_V32;
3194 break;
3195
3196 default:
3197 _bfd_abort (__FILE__, __LINE__,
3198 _("Unexpected machine number"));
3199 }
3200
3201 elf_elfheader (abfd)->e_flags = e_flags;
3202}
3203
3204/* Set the mach type from e_flags value. */
3205
3206static bfd_boolean
3207cris_elf_set_mach_from_flags (abfd, flags)
3208 bfd *abfd;
3209 unsigned long flags;
3210{
3211 switch (flags & EF_CRIS_VARIANT_MASK)
3212 {
3213 case EF_CRIS_VARIANT_ANY_V0_V10:
3214 bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v0_v10);
3215 break;
3216
3217 case EF_CRIS_VARIANT_V32:
3218 bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v32);
3219 break;
3220
3221 case EF_CRIS_VARIANT_COMMON_V10_V32:
3222 bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v10_v32);
3223 break;
3224
3225 default:
3226 /* Since we don't recognize them, we obviously can't support them
3227 with this code; we'd have to require that all future handling
3228 would be optional. */
3229 bfd_set_error (bfd_error_wrong_format);
3230 return FALSE;
3231 }
3232
3233 return TRUE;
4da81684
HPN
3234}
3235
3236/* Display the flags field. */
3237
b34976b6 3238static bfd_boolean
4da81684
HPN
3239cris_elf_print_private_bfd_data (abfd, ptr)
3240 bfd *abfd;
3241 PTR ptr;
3242{
3243 FILE *file = (FILE *) ptr;
3244
f12123c0 3245 BFD_ASSERT (abfd != NULL && ptr != NULL);
4da81684
HPN
3246
3247 _bfd_elf_print_private_bfd_data (abfd, ptr);
3248
3249 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
3250
3251 if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
3252 fprintf (file, _(" [symbols have a _ prefix]"));
bac23f82
HPN
3253 if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
3254 == EF_CRIS_VARIANT_COMMON_V10_V32)
3255 fprintf (file, _(" [v10 and v32]"));
3256 if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
3257 == EF_CRIS_VARIANT_V32)
3258 fprintf (file, _(" [v32]"));
4da81684
HPN
3259
3260 fputc ('\n', file);
b34976b6 3261 return TRUE;
4da81684
HPN
3262}
3263
3264/* Don't mix files with and without a leading underscore. */
3265
b34976b6 3266static bfd_boolean
4da81684
HPN
3267cris_elf_merge_private_bfd_data (ibfd, obfd)
3268 bfd *ibfd;
3269 bfd *obfd;
3270{
bac23f82 3271 int imach, omach;
4da81684 3272
82e51918 3273 if (! _bfd_generic_verify_endian_match (ibfd, obfd))
b34976b6 3274 return FALSE;
4da81684
HPN
3275
3276 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3277 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3278 return TRUE;
4da81684 3279
bac23f82
HPN
3280 imach = bfd_get_mach (ibfd);
3281
4da81684
HPN
3282 if (! elf_flags_init (obfd))
3283 {
3284 /* This happens when ld starts out with a 'blank' output file. */
b34976b6 3285 elf_flags_init (obfd) = TRUE;
4da81684 3286
bac23f82
HPN
3287 /* We ignore the linker-set mach, and instead set it according to
3288 the first input file. This would also happen if we could
3289 somehow filter out the OUTPUT_ARCH () setting from elf.sc.
3290 This allows us to keep the same linker config across
3291 cris(v0..v10) and crisv32. The drawback is that we can't force
3292 the output type, which might be a sane thing to do for a
3293 v10+v32 compatibility object. */
3294 if (! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
3295 return FALSE;
4da81684
HPN
3296 }
3297
bac23f82
HPN
3298 if (bfd_get_symbol_leading_char (ibfd)
3299 != bfd_get_symbol_leading_char (obfd))
4da81684
HPN
3300 {
3301 (*_bfd_error_handler)
bac23f82 3302 (bfd_get_symbol_leading_char (ibfd) == '_'
d003868e
AM
3303 ? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols")
3304 : _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
3305 ibfd);
4da81684 3306 bfd_set_error (bfd_error_bad_value);
b34976b6 3307 return FALSE;
4da81684
HPN
3308 }
3309
bac23f82
HPN
3310 omach = bfd_get_mach (obfd);
3311
3312 if (imach != omach)
3313 {
3314 /* We can get an incompatible combination only if either is
3315 bfd_mach_cris_v32, and the other one isn't compatible. */
3316 if ((imach == bfd_mach_cris_v32
3317 && omach != bfd_mach_cris_v10_v32)
3318 || (omach == bfd_mach_cris_v32
3319 && imach != bfd_mach_cris_v10_v32))
3320 {
3321 (*_bfd_error_handler)
3322 ((imach == bfd_mach_cris_v32)
3323 ? _("%B contains CRIS v32 code, incompatible"
3324 " with previous objects")
3325 : _("%B contains non-CRIS-v32 code, incompatible"
3326 " with previous objects"),
3327 ibfd);
3328 bfd_set_error (bfd_error_bad_value);
3329 return FALSE;
3330 }
3331
3332 /* We don't have to check the case where the input is compatible
3333 with v10 and v32, because the output is already known to be set
3334 to the other (compatible) mach. */
3335 if (omach == bfd_mach_cris_v10_v32
3336 && ! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
3337 return FALSE;
3338 }
3339
b34976b6 3340 return TRUE;
4da81684 3341}
99e4ae17 3342
bac23f82
HPN
3343/* Do side-effects of e_flags copying to obfd. */
3344
3345static bfd_boolean
3346cris_elf_copy_private_bfd_data (ibfd, obfd)
3347 bfd *ibfd;
3348 bfd *obfd;
3349{
3350 /* Call the base function. */
3351 if (!_bfd_elf_copy_private_bfd_data (ibfd, obfd))
3352 return FALSE;
3353
3354 /* If output is big-endian for some obscure reason, stop here. */
3355 if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
3356 return FALSE;
3357
3358 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3359 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3360 return TRUE;
3361
3362 /* Do what we really came here for. */
3363 return bfd_set_arch_mach (obfd, bfd_arch_cris, bfd_get_mach (ibfd));
3364}
99e4ae17
AJ
3365
3366static enum elf_reloc_type_class
f51e552e
AM
3367elf_cris_reloc_type_class (rela)
3368 const Elf_Internal_Rela *rela;
99e4ae17 3369{
f51e552e 3370 switch ((int) ELF32_R_TYPE (rela->r_info))
99e4ae17
AJ
3371 {
3372 case R_CRIS_RELATIVE:
3373 return reloc_class_relative;
3374 case R_CRIS_JUMP_SLOT:
3375 return reloc_class_plt;
3376 case R_CRIS_COPY:
3377 return reloc_class_copy;
3378 default:
3379 return reloc_class_normal;
3380 }
3381}
06c15ad7
HPN
3382\f
3383#define ELF_ARCH bfd_arch_cris
3384#define ELF_MACHINE_CODE EM_CRIS
3385#define ELF_MAXPAGESIZE 0x2000
3386
3387#define TARGET_LITTLE_SYM bfd_elf32_cris_vec
3388#define TARGET_LITTLE_NAME "elf32-cris"
4da81684 3389#define elf_symbol_leading_char 0
06c15ad7
HPN
3390
3391#define elf_info_to_howto_rel NULL
3392#define elf_info_to_howto cris_info_to_howto_rela
3393#define elf_backend_relocate_section cris_elf_relocate_section
3394#define elf_backend_gc_mark_hook cris_elf_gc_mark_hook
3395#define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook
3396#define elf_backend_check_relocs cris_elf_check_relocs
72209a1f
HPN
3397#define elf_backend_grok_prstatus cris_elf_grok_prstatus
3398#define elf_backend_grok_psinfo cris_elf_grok_psinfo
06c15ad7
HPN
3399
3400#define elf_backend_can_gc_sections 1
51b64d56 3401#define elf_backend_can_refcount 1
06c15ad7 3402
4da81684
HPN
3403#define elf_backend_object_p cris_elf_object_p
3404#define elf_backend_final_write_processing \
3405 cris_elf_final_write_processing
3406#define bfd_elf32_bfd_print_private_bfd_data \
3407 cris_elf_print_private_bfd_data
3408#define bfd_elf32_bfd_merge_private_bfd_data \
3409 cris_elf_merge_private_bfd_data
bac23f82
HPN
3410#define bfd_elf32_bfd_copy_private_bfd_data \
3411 cris_elf_copy_private_bfd_data
4da81684 3412
06c15ad7
HPN
3413#define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
3414
915e5146
HPN
3415#define bfd_elf32_bfd_link_hash_table_create \
3416 elf_cris_link_hash_table_create
3417#define elf_backend_adjust_dynamic_symbol \
3418 elf_cris_adjust_dynamic_symbol
3419#define elf_backend_size_dynamic_sections \
3420 elf_cris_size_dynamic_sections
3421#define elf_backend_finish_dynamic_symbol \
3422 elf_cris_finish_dynamic_symbol
3423#define elf_backend_finish_dynamic_sections \
3424 elf_cris_finish_dynamic_sections
3425#define elf_backend_create_dynamic_sections \
3426 _bfd_elf_create_dynamic_sections
3427#define bfd_elf32_bfd_final_link \
c152c796 3428 bfd_elf_gc_common_final_link
915e5146 3429#define elf_backend_hide_symbol elf_cris_hide_symbol
99e4ae17 3430#define elf_backend_reloc_type_class elf_cris_reloc_type_class
915e5146
HPN
3431
3432#define elf_backend_want_got_plt 1
3433#define elf_backend_plt_readonly 1
3434#define elf_backend_want_plt_sym 0
3435#define elf_backend_got_header_size 12
915e5146 3436
06c15ad7
HPN
3437/* Later, we my want to optimize RELA entries into REL entries for dynamic
3438 linking and libraries (if it's a win of any significance). Until then,
3439 take the easy route. */
3440#define elf_backend_may_use_rel_p 0
3441#define elf_backend_may_use_rela_p 1
f0fe0e16 3442#define elf_backend_rela_normal 1
06c15ad7
HPN
3443
3444#include "elf32-target.h"
4da81684
HPN
3445
3446#define INCLUDED_TARGET_FILE
3447
3448#undef TARGET_LITTLE_SYM
3449#undef TARGET_LITTLE_NAME
3450#undef elf_symbol_leading_char
3451
3452#define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
3453#define TARGET_LITTLE_NAME "elf32-us-cris"
3454#define elf_symbol_leading_char '_'
3455
3456#include "elf32-target.h"