]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blame - bfd/elf32-lm32.c
projects / thirdparty / binutils-gdb.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Fix Common symbol override test fails
[thirdparty/binutils-gdb.git] / bfd / elf32-lm32.c
CommitLineData
84e94c90 1/* Lattice Mico32-specific support for 32-bit ELF
2571583a 2 Copyright (C) 2008-2017 Free Software Foundation, Inc.
84e94c90
NC		 3 Contributed by Jon Beniston <jon@beniston.com>
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
21
84e94c90 22#include "sysdep.h"
691bf19c 23#include "bfd.h"
84e94c90
NC		 24#include "libbfd.h"
25#include "elf-bfd.h"
26#include "elf/lm32.h"
27
28#define DEFAULT_STACK_SIZE 0x20000
29
30#define PLT_ENTRY_SIZE 20
31
32#define PLT0_ENTRY_WORD0 0
33#define PLT0_ENTRY_WORD1 0
34#define PLT0_ENTRY_WORD2 0
35#define PLT0_ENTRY_WORD3 0
36#define PLT0_ENTRY_WORD4 0
37
38#define PLT0_PIC_ENTRY_WORD0 0
39#define PLT0_PIC_ENTRY_WORD1 0
40#define PLT0_PIC_ENTRY_WORD2 0
41#define PLT0_PIC_ENTRY_WORD3 0
42#define PLT0_PIC_ENTRY_WORD4 0
43
44#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
45
6d00b590 46extern const bfd_target lm32_elf32_fdpic_vec;
84e94c90 47
6d00b590 48#define IS_FDPIC(bfd) ((bfd)->xvec == &lm32_elf32_fdpic_vec)
84e94c90
NC		 49
50static bfd_reloc_status_type lm32_elf_gprel_reloc
51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
52
84e94c90
NC		 53/* lm32 ELF linker hash entry. */
54
55struct elf_lm32_link_hash_entry
56{
57 struct elf_link_hash_entry root;
58
59 /* Track dynamic relocs copied for this symbol. */
3bf083ed 60 struct elf_dyn_relocs *dyn_relocs;
84e94c90
NC		 61};
62
63/* lm32 ELF linker hash table. */
64
65struct elf_lm32_link_hash_table
66{
67 struct elf_link_hash_table root;
68
69 /* Short-cuts to get to dynamic linker sections. */
84e94c90 70 asection *sfixup32;
84e94c90
NC		 71 asection *sdynbss;
72 asection *srelbss;
73
74 int relocs32;
75};
76
77/* Get the lm32 ELF linker hash table from a link_info structure. */
78
79#define lm32_elf_hash_table(p) \
4dfe6ac6
NC		 80 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
81 == LM32_ELF_DATA ? ((struct elf_lm32_link_hash_table *) ((p)->hash)) : NULL)
84e94c90
NC		 82
83#define lm32fdpic_got_section(info) \
ce558b89 84 (lm32_elf_hash_table (info)->root.sgot)
84e94c90 85#define lm32fdpic_gotrel_section(info) \
ce558b89 86 (lm32_elf_hash_table (info)->root.srelgot)
84e94c90
NC		 87#define lm32fdpic_fixup32_section(info) \
88 (lm32_elf_hash_table (info)->sfixup32)
89
90struct weak_symbol_list
91{
92 const char *name;
93 struct weak_symbol_list *next;
94};
95
96/* Create an entry in an lm32 ELF linker hash table. */
97
98static struct bfd_hash_entry *
99lm32_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
100 struct bfd_hash_table *table,
101 const char *string)
102{
103 struct elf_lm32_link_hash_entry *ret =
104 (struct elf_lm32_link_hash_entry *) entry;
105
106 /* Allocate the structure if it has not already been allocated by a
107 subclass. */
108 if (ret == NULL)
109 ret = bfd_hash_allocate (table,
110 sizeof (struct elf_lm32_link_hash_entry));
111 if (ret == NULL)
112 return NULL;
113
114 /* Call the allocation method of the superclass. */
115 ret = ((struct elf_lm32_link_hash_entry *)
116 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
117 table, string));
118 if (ret != NULL)
119 {
120 struct elf_lm32_link_hash_entry *eh;
121
122 eh = (struct elf_lm32_link_hash_entry *) ret;
123 eh->dyn_relocs = NULL;
124 }
125
126 return (struct bfd_hash_entry *) ret;
127}
128
129/* Create an lm32 ELF linker hash table. */
130
131static struct bfd_link_hash_table *
132lm32_elf_link_hash_table_create (bfd *abfd)
133{
134 struct elf_lm32_link_hash_table *ret;
135 bfd_size_type amt = sizeof (struct elf_lm32_link_hash_table);
136
7bf52ea2 137 ret = bfd_zmalloc (amt);
84e94c90
NC		 138 if (ret == NULL)
139 return NULL;
140
141 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
142 lm32_elf_link_hash_newfunc,
4dfe6ac6
NC		 143 sizeof (struct elf_lm32_link_hash_entry),
144 LM32_ELF_DATA))
84e94c90
NC		 145 {
146 free (ret);
147 return NULL;
148 }
149
84e94c90
NC		 150 return &ret->root.root;
151}
152
153/* Add a fixup to the ROFIXUP section. */
154
155static bfd_vma
156_lm32fdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma relocation)
157{
158 bfd_vma fixup_offset;
159
160 if (rofixup->flags & SEC_EXCLUDE)
161 return -1;
162
163 fixup_offset = rofixup->reloc_count * 4;
164 if (rofixup->contents)
165 {
166 BFD_ASSERT (fixup_offset < rofixup->size);
167 if (fixup_offset < rofixup->size)
168 bfd_put_32 (output_bfd, relocation, rofixup->contents + fixup_offset);
169 }
170 rofixup->reloc_count++;
171
172 return fixup_offset;
173}
174
84e94c90
NC		 175/* Create .rofixup sections in DYNOBJ, and set up
176 shortcuts to them in our hash table. */
177
178static bfd_boolean
179create_rofixup_section (bfd *dynobj, struct bfd_link_info *info)
180{
181 struct elf_lm32_link_hash_table *htab;
182 htab = lm32_elf_hash_table (info);
183
4dfe6ac6
NC		 184 if (htab == NULL)
185 return FALSE;
186
187 /* Fixup section for R_LM32_32 relocs. */
3d4d4302
AM		 188 lm32fdpic_fixup32_section (info)
189 = bfd_make_section_anyway_with_flags (dynobj,
190 ".rofixup",
191 (SEC_ALLOC
192 | SEC_LOAD
193 | SEC_HAS_CONTENTS
194 | SEC_IN_MEMORY
195 | SEC_LINKER_CREATED
196 | SEC_READONLY));
84e94c90 197 if (lm32fdpic_fixup32_section (info) == NULL
3d4d4302
AM		 198 || ! bfd_set_section_alignment (dynobj,
199 lm32fdpic_fixup32_section (info), 2))
84e94c90
NC		 200 return FALSE;
201
202 return TRUE;
203}
204
205static reloc_howto_type lm32_elf_howto_table [] =
206{
207 /* This reloc does nothing. */
208 HOWTO (R_LM32_NONE, /* type */
209 0, /* rightshift */
6346d5ca
AM		 210 3, /* size (0 = byte, 1 = short, 2 = long) */
211 0, /* bitsize */
84e94c90
NC		 212 FALSE, /* pc_relative */
213 0, /* bitpos */
6346d5ca 214 complain_overflow_dont, /* complain_on_overflow */
84e94c90
NC		 215 bfd_elf_generic_reloc, /* special_function */
216 "R_LM32_NONE", /* name */
217 FALSE, /* partial_inplace */
218 0, /* src_mask */
219 0, /* dst_mask */
220 FALSE), /* pcrel_offset */
221
222 /* An 8 bit absolute relocation. */
223 HOWTO (R_LM32_8, /* type */
224 0, /* rightshift */
225 0, /* size (0 = byte, 1 = short, 2 = long) */
226 8, /* bitsize */
227 FALSE, /* pc_relative */
228 0, /* bitpos */
229 complain_overflow_bitfield,/* complain_on_overflow */
230 bfd_elf_generic_reloc, /* special_function */
231 "R_LM32_8", /* name */
232 FALSE, /* partial_inplace */
233 0, /* src_mask */
234 0xff, /* dst_mask */
235 FALSE), /* pcrel_offset */
236
237 /* A 16 bit absolute relocation. */
238 HOWTO (R_LM32_16, /* type */
239 0, /* rightshift */
240 1, /* size (0 = byte, 1 = short, 2 = long) */
241 16, /* bitsize */
242 FALSE, /* pc_relative */
243 0, /* bitpos */
244 complain_overflow_bitfield,/* complain_on_overflow */
245 bfd_elf_generic_reloc, /* special_function */
246 "R_LM32_16", /* name */
247 FALSE, /* partial_inplace */
248 0, /* src_mask */
249 0xffff, /* dst_mask */
250 FALSE), /* pcrel_offset */
251
252 /* A 32 bit absolute relocation. */
253 HOWTO (R_LM32_32, /* type */
254 0, /* rightshift */
255 2, /* size (0 = byte, 1 = short, 2 = long) */
256 32, /* bitsize */
257 FALSE, /* pc_relative */
258 0, /* bitpos */
259 complain_overflow_bitfield,/* complain_on_overflow */
260 bfd_elf_generic_reloc, /* special_function */
261 "R_LM32_32", /* name */
262 FALSE, /* partial_inplace */
263 0, /* src_mask */
264 0xffffffff, /* dst_mask */
265 FALSE), /* pcrel_offset */
266
267 HOWTO (R_LM32_HI16, /* type */
268 16, /* rightshift */
269 2, /* size (0 = byte, 1 = short, 2 = long) */
270 16, /* bitsize */
271 FALSE, /* pc_relative */
272 0, /* bitpos */
273 complain_overflow_bitfield,/* complain_on_overflow */
274 bfd_elf_generic_reloc, /* special_function */
275 "R_LM32_HI16", /* name */
276 FALSE, /* partial_inplace */
277 0, /* src_mask */
278 0xffff, /* dst_mask */
279 FALSE), /* pcrel_offset */
280
281 HOWTO (R_LM32_LO16, /* type */
282 0, /* rightshift */
283 2, /* size (0 = byte, 1 = short, 2 = long) */
284 16, /* bitsize */
285 FALSE, /* pc_relative */
286 0, /* bitpos */
287 complain_overflow_dont, /* complain_on_overflow */
288 bfd_elf_generic_reloc, /* special_function */
289 "R_LM32_LO16", /* name */
290 FALSE, /* partial_inplace */
291 0, /* src_mask */
292 0xffff, /* dst_mask */
293 FALSE), /* pcrel_offset */
294
295 HOWTO (R_LM32_GPREL16, /* type */
296 0, /* rightshift */
297 2, /* size (0 = byte, 1 = short, 2 = long) */
298 16, /* bitsize */
299 FALSE, /* pc_relative */
300 0, /* bitpos */
301 complain_overflow_dont, /* complain_on_overflow */
302 lm32_elf_gprel_reloc, /* special_function */
303 "R_LM32_GPREL16", /* name */
304 FALSE, /* partial_inplace */
305 0, /* src_mask */
306 0xffff, /* dst_mask */
307 FALSE), /* pcrel_offset */
308
309 HOWTO (R_LM32_CALL, /* type */
310 2, /* rightshift */
311 2, /* size (0 = byte, 1 = short, 2 = long) */
312 26, /* bitsize */
313 TRUE, /* pc_relative */
314 0, /* bitpos */
315 complain_overflow_signed, /* complain_on_overflow */
316 bfd_elf_generic_reloc, /* special_function */
317 "R_LM32_CALL", /* name */
318 FALSE, /* partial_inplace */
319 0, /* src_mask */
320 0x3ffffff, /* dst_mask */
321 TRUE), /* pcrel_offset */
322
323 HOWTO (R_LM32_BRANCH, /* type */
324 2, /* rightshift */
325 2, /* size (0 = byte, 1 = short, 2 = long) */
326 16, /* bitsize */
327 TRUE, /* pc_relative */
328 0, /* bitpos */
329 complain_overflow_signed, /* complain_on_overflow */
330 bfd_elf_generic_reloc, /* special_function */
331 "R_LM32_BRANCH", /* name */
332 FALSE, /* partial_inplace */
333 0, /* src_mask */
334 0xffff, /* dst_mask */
335 TRUE), /* pcrel_offset */
336
337 /* GNU extension to record C++ vtable hierarchy. */
338 HOWTO (R_LM32_GNU_VTINHERIT, /* type */
339 0, /* rightshift */
340 2, /* size (0 = byte, 1 = short, 2 = long) */
341 0, /* bitsize */
342 FALSE, /* pc_relative */
343 0, /* bitpos */
344 complain_overflow_dont, /* complain_on_overflow */
345 NULL, /* special_function */
346 "R_LM32_GNU_VTINHERIT", /* name */
347 FALSE, /* partial_inplace */
348 0, /* src_mask */
349 0, /* dst_mask */
350 FALSE), /* pcrel_offset */
351
352 /* GNU extension to record C++ vtable member usage. */
353 HOWTO (R_LM32_GNU_VTENTRY, /* type */
354 0, /* rightshift */
355 2, /* size (0 = byte, 1 = short, 2 = long) */
356 0, /* bitsize */
357 FALSE, /* pc_relative */
358 0, /* bitpos */
359 complain_overflow_dont, /* complain_on_overflow */
360 _bfd_elf_rel_vtable_reloc_fn,/* special_function */
361 "R_LM32_GNU_VTENTRY", /* name */
362 FALSE, /* partial_inplace */
363 0, /* src_mask */
364 0, /* dst_mask */
365 FALSE), /* pcrel_offset */
366
367 HOWTO (R_LM32_16_GOT, /* type */
368 0, /* rightshift */
369 2, /* size (0 = byte, 1 = short, 2 = long) */
370 16, /* bitsize */
371 FALSE, /* pc_relative */
372 0, /* bitpos */
373 complain_overflow_signed, /* complain_on_overflow */
374 bfd_elf_generic_reloc, /* special_function */
375 "R_LM32_16_GOT", /* name */
376 FALSE, /* partial_inplace */
377 0, /* src_mask */
378 0xffff, /* dst_mask */
379 FALSE), /* pcrel_offset */
380
381 HOWTO (R_LM32_GOTOFF_HI16, /* type */
382 16, /* rightshift */
383 2, /* size (0 = byte, 1 = short, 2 = long) */
384 16, /* bitsize */
385 FALSE, /* pc_relative */
386 0, /* bitpos */
387 complain_overflow_dont, /* complain_on_overflow */
388 bfd_elf_generic_reloc, /* special_function */
389 "R_LM32_GOTOFF_HI16", /* name */
390 FALSE, /* partial_inplace */
391 0xffff, /* src_mask */
392 0xffff, /* dst_mask */
393 FALSE), /* pcrel_offset */
394
395 HOWTO (R_LM32_GOTOFF_LO16, /* type */
396 0, /* rightshift */
397 2, /* size (0 = byte, 1 = short, 2 = long) */
398 16, /* bitsize */
399 FALSE, /* pc_relative */
400 0, /* bitpos */
401 complain_overflow_dont, /* complain_on_overflow */
402 bfd_elf_generic_reloc, /* special_function */
403 "R_LM32_GOTOFF_LO16", /* name */
404 FALSE, /* partial_inplace */
405 0xffff, /* src_mask */
406 0xffff, /* dst_mask */
407 FALSE), /* pcrel_offset */
408
409 HOWTO (R_LM32_COPY, /* type */
410 0, /* rightshift */
411 2, /* size (0 = byte, 1 = short, 2 = long) */
412 32, /* bitsize */
413 FALSE, /* pc_relative */
414 0, /* bitpos */
415 complain_overflow_bitfield, /* complain_on_overflow */
416 bfd_elf_generic_reloc, /* special_function */
417 "R_LM32_COPY", /* name */
418 FALSE, /* partial_inplace */
419 0xffffffff, /* src_mask */
420 0xffffffff, /* dst_mask */
421 FALSE), /* pcrel_offset */
422
423 HOWTO (R_LM32_GLOB_DAT, /* type */
424 0, /* rightshift */
425 2, /* size (0 = byte, 1 = short, 2 = long) */
426 32, /* bitsize */
427 FALSE, /* pc_relative */
428 0, /* bitpos */
429 complain_overflow_bitfield, /* complain_on_overflow */
430 bfd_elf_generic_reloc, /* special_function */
431 "R_LM32_GLOB_DAT", /* name */
432 FALSE, /* partial_inplace */
433 0xffffffff, /* src_mask */
434 0xffffffff, /* dst_mask */
435 FALSE), /* pcrel_offset */
436
437 HOWTO (R_LM32_JMP_SLOT, /* type */
438 0, /* rightshift */
439 2, /* size (0 = byte, 1 = short, 2 = long) */
440 32, /* bitsize */
441 FALSE, /* pc_relative */
442 0, /* bitpos */
443 complain_overflow_bitfield, /* complain_on_overflow */
444 bfd_elf_generic_reloc, /* special_function */
445 "R_LM32_JMP_SLOT", /* name */
446 FALSE, /* partial_inplace */
447 0xffffffff, /* src_mask */
448 0xffffffff, /* dst_mask */
449 FALSE), /* pcrel_offset */
450
451 HOWTO (R_LM32_RELATIVE, /* type */
452 0, /* rightshift */
453 2, /* size (0 = byte, 1 = short, 2 = long) */
454 32, /* bitsize */
455 FALSE, /* pc_relative */
456 0, /* bitpos */
457 complain_overflow_bitfield, /* complain_on_overflow */
458 bfd_elf_generic_reloc, /* special_function */
459 "R_LM32_RELATIVE", /* name */
460 FALSE, /* partial_inplace */
461 0xffffffff, /* src_mask */
462 0xffffffff, /* dst_mask */
463 FALSE), /* pcrel_offset */
464
465};
466
467/* Map BFD reloc types to lm32 ELF reloc types. */
468
469struct lm32_reloc_map
470{
471 bfd_reloc_code_real_type bfd_reloc_val;
472 unsigned char elf_reloc_val;
473};
474
475static const struct lm32_reloc_map lm32_reloc_map[] =
476{
477 { BFD_RELOC_NONE, R_LM32_NONE },
478 { BFD_RELOC_8, R_LM32_8 },
479 { BFD_RELOC_16, R_LM32_16 },
480 { BFD_RELOC_32, R_LM32_32 },
481 { BFD_RELOC_HI16, R_LM32_HI16 },
482 { BFD_RELOC_LO16, R_LM32_LO16 },
483 { BFD_RELOC_GPREL16, R_LM32_GPREL16 },
484 { BFD_RELOC_LM32_CALL, R_LM32_CALL },
485 { BFD_RELOC_LM32_BRANCH, R_LM32_BRANCH },
486 { BFD_RELOC_VTABLE_INHERIT, R_LM32_GNU_VTINHERIT },
487 { BFD_RELOC_VTABLE_ENTRY, R_LM32_GNU_VTENTRY },
488 { BFD_RELOC_LM32_16_GOT, R_LM32_16_GOT },
489 { BFD_RELOC_LM32_GOTOFF_HI16, R_LM32_GOTOFF_HI16 },
490 { BFD_RELOC_LM32_GOTOFF_LO16, R_LM32_GOTOFF_LO16 },
491 { BFD_RELOC_LM32_COPY, R_LM32_COPY },
492 { BFD_RELOC_LM32_GLOB_DAT, R_LM32_GLOB_DAT },
493 { BFD_RELOC_LM32_JMP_SLOT, R_LM32_JMP_SLOT },
494 { BFD_RELOC_LM32_RELATIVE, R_LM32_RELATIVE },
495};
496
497static reloc_howto_type *
498lm32_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
499 bfd_reloc_code_real_type code)
500{
501 unsigned int i;
502
503 for (i = 0; i < sizeof (lm32_reloc_map) / sizeof (lm32_reloc_map[0]); i++)
504 if (lm32_reloc_map[i].bfd_reloc_val == code)
505 return &lm32_elf_howto_table[lm32_reloc_map[i].elf_reloc_val];
506 return NULL;
507}
508
509static reloc_howto_type *
510lm32_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
511 const char *r_name)
512{
513 unsigned int i;
514
515 for (i = 0;
516 i < sizeof (lm32_elf_howto_table) / sizeof (lm32_elf_howto_table[0]);
517 i++)
518 if (lm32_elf_howto_table[i].name != NULL
519 && strcasecmp (lm32_elf_howto_table[i].name, r_name) == 0)
520 return &lm32_elf_howto_table[i];
521
522 return NULL;
523}
524
525
526/* Set the howto pointer for an Lattice Mico32 ELF reloc. */
527
528static void
529lm32_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
530 arelent *cache_ptr,
531 Elf_Internal_Rela *dst)
532{
533 unsigned int r_type;
534
535 r_type = ELF32_R_TYPE (dst->r_info);
5860e3f8
NC		 536 if (r_type >= (unsigned int) R_LM32_max)
537 {
695344c0 538 /* xgettext:c-format */
64d29018 539 _bfd_error_handler (_("%B: invalid LM32 reloc number: %d"), abfd, r_type);
5860e3f8
NC		 540 r_type = 0;
541 }
84e94c90
NC		 542 cache_ptr->howto = &lm32_elf_howto_table[r_type];
543}
544
545/* Set the right machine number for an Lattice Mico32 ELF file. */
546
547static bfd_boolean
548lm32_elf_object_p (bfd *abfd)
549{
550 return bfd_default_set_arch_mach (abfd, bfd_arch_lm32, bfd_mach_lm32);
551}
552
553/* Set machine type flags just before file is written out. */
554
555static void
556lm32_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
557{
558 elf_elfheader (abfd)->e_machine = EM_LATTICEMICO32;
559 elf_elfheader (abfd)->e_flags &=~ EF_LM32_MACH;
560 switch (bfd_get_mach (abfd))
561 {
562 case bfd_mach_lm32:
563 elf_elfheader (abfd)->e_flags |= E_LM32_MACH;
564 break;
565 default:
566 abort ();
567 }
568}
569
570/* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
571 dangerous relocation. */
572
573static bfd_boolean
574lm32_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
575{
576 unsigned int count;
577 asymbol **sym;
578 unsigned int i;
579
580 /* If we've already figured out what GP will be, just return it. */
581 *pgp = _bfd_get_gp_value (output_bfd);
582 if (*pgp)
583 return TRUE;
584
585 count = bfd_get_symcount (output_bfd);
586 sym = bfd_get_outsymbols (output_bfd);
587
588 /* The linker script will have created a symbol named `_gp' with the
589 appropriate value. */
590 if (sym == NULL)
591 i = count;
592 else
593 {
594 for (i = 0; i < count; i++, sym++)
595 {
596 const char *name;
597
598 name = bfd_asymbol_name (*sym);
599 if (*name == '_' && strcmp (name, "_gp") == 0)
600 {
601 *pgp = bfd_asymbol_value (*sym);
602 _bfd_set_gp_value (output_bfd, *pgp);
603 break;
604 }
605 }
606 }
607
608 if (i >= count)
609 {
610 /* Only get the error once. */
611 *pgp = 4;
612 _bfd_set_gp_value (output_bfd, *pgp);
613 return FALSE;
614 }
615
616 return TRUE;
617}
618
619/* We have to figure out the gp value, so that we can adjust the
620 symbol value correctly. We look up the symbol _gp in the output
621 BFD. If we can't find it, we're stuck. We cache it in the ELF
622 target data. We don't need to adjust the symbol value for an
623 external symbol if we are producing relocatable output. */
624
625static bfd_reloc_status_type
626lm32_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
627 char **error_message, bfd_vma *pgp)
628{
629 if (bfd_is_und_section (symbol->section) && !relocatable)
630 {
631 *pgp = 0;
632 return bfd_reloc_undefined;
633 }
634
635 *pgp = _bfd_get_gp_value (output_bfd);
636 if (*pgp == 0 && (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0))
637 {
638 if (relocatable)
639 {
640 /* Make up a value. */
641 *pgp = symbol->section->output_section->vma + 0x4000;
642 _bfd_set_gp_value (output_bfd, *pgp);
643 }
644 else if (!lm32_elf_assign_gp (output_bfd, pgp))
645 {
646 *error_message =
647 (char *)
648 _("global pointer relative relocation when _gp not defined");
649 return bfd_reloc_dangerous;
650 }
651 }
652
653 return bfd_reloc_ok;
654}
655
656static bfd_reloc_status_type
657lm32_elf_do_gprel_relocate (bfd *abfd,
658 reloc_howto_type *howto,
659 asection *input_section ATTRIBUTE_UNUSED,
660 bfd_byte *data,
661 bfd_vma offset,
662 bfd_vma symbol_value,
663 bfd_vma addend)
664{
665 return _bfd_final_link_relocate (howto, abfd, input_section,
666 data, offset, symbol_value, addend);
667}
668
669static bfd_reloc_status_type
670lm32_elf_gprel_reloc (bfd *abfd,
671 arelent *reloc_entry,
672 asymbol *symbol,
673 void *data,
674 asection *input_section,
675 bfd *output_bfd,
676 char **msg)
677{
678 bfd_vma relocation;
679 bfd_vma gp;
680 bfd_reloc_status_type r;
681
682 if (output_bfd != (bfd *) NULL
683 && (symbol->flags & BSF_SECTION_SYM) == 0
684 && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0))
685 {
686 reloc_entry->address += input_section->output_offset;
687 return bfd_reloc_ok;
688 }
689
690 if (output_bfd != NULL)
691 return bfd_reloc_ok;
692
693 relocation = symbol->value
694 + symbol->section->output_section->vma + symbol->section->output_offset;
695
696 if ((r =
697 lm32_elf_final_gp (abfd, symbol, FALSE, msg, &gp)) == bfd_reloc_ok)
698 {
699 relocation = relocation + reloc_entry->addend - gp;
700 reloc_entry->addend = 0;
701 if ((signed) relocation < -32768 || (signed) relocation > 32767)
702 {
703 *msg = _("global pointer relative address out of range");
704 r = bfd_reloc_outofrange;
705 }
706 else
707 {
708 r = lm32_elf_do_gprel_relocate (abfd, reloc_entry->howto,
709 input_section,
710 data, reloc_entry->address,
711 relocation, reloc_entry->addend);
712 }
713 }
714
715 return r;
716}
717
718/* Find the segment number in which OSEC, and output section, is
719 located. */
720
721static unsigned
722_lm32fdpic_osec_to_segment (bfd *output_bfd, asection *osec)
723{
724 struct elf_segment_map *m;
725 Elf_Internal_Phdr *p;
726
727 /* Find the segment that contains the output_section. */
12bd6957 728 for (m = elf_seg_map (output_bfd), p = elf_tdata (output_bfd)->phdr;
84e94c90
NC		 729 m != NULL;
730 m = m->next, p++)
731 {
732 int i;
733
734 for (i = m->count - 1; i >= 0; i--)
735 if (m->sections[i] == osec)
736 break;
737
738 if (i >= 0)
739 break;
740 }
741
742 return p - elf_tdata (output_bfd)->phdr;
743}
744
745/* Determine if an output section is read-only. */
746
747inline static bfd_boolean
748_lm32fdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
749{
750 unsigned seg = _lm32fdpic_osec_to_segment (output_bfd, osec);
751
752 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
753}
754
755/* Relocate a section */
756
757static bfd_boolean
758lm32_elf_relocate_section (bfd *output_bfd,
759 struct bfd_link_info *info,
760 bfd *input_bfd,
761 asection *input_section,
762 bfd_byte *contents,
763 Elf_Internal_Rela *relocs,
764 Elf_Internal_Sym *local_syms,
765 asection **local_sections)
766{
767 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
768 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
769 Elf_Internal_Rela *rel, *relend;
84e94c90 770 struct elf_lm32_link_hash_table *htab = lm32_elf_hash_table (info);
84e94c90 771 bfd_vma *local_got_offsets;
c7e2358a 772 asection *sgot;
84e94c90 773
4dfe6ac6
NC		 774 if (htab == NULL)
775 return FALSE;
776
84e94c90
NC		 777 local_got_offsets = elf_local_got_offsets (input_bfd);
778
ce558b89 779 sgot = htab->root.sgot;
84e94c90
NC		 780
781 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
782 sym_hashes = elf_sym_hashes (input_bfd);
783
784 rel = relocs;
785 relend = relocs + input_section->reloc_count;
786 for (; rel < relend; rel++)
787 {
788 reloc_howto_type *howto;
789 unsigned int r_type;
790 unsigned long r_symndx;
791 Elf_Internal_Sym *sym;
792 asection *sec;
793 struct elf_link_hash_entry *h;
794 bfd_vma relocation;
795 bfd_vma gp;
796 bfd_reloc_status_type r;
797 const char *name = NULL;
84e94c90
NC		 798
799 r_symndx = ELF32_R_SYM (rel->r_info);
800 r_type = ELF32_R_TYPE (rel->r_info);
801
802 if (r_type == R_LM32_GNU_VTENTRY
803 || r_type == R_LM32_GNU_VTINHERIT )
804 continue;
805
806 h = NULL;
807 sym = NULL;
808 sec = NULL;
809
810 howto = lm32_elf_howto_table + r_type;
811
812 if (r_symndx < symtab_hdr->sh_info)
813 {
814 /* It's a local symbol. */
815 sym = local_syms + r_symndx;
c7e2358a 816 sec = local_sections[r_symndx];
84e94c90
NC		 817 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
818 name = bfd_elf_string_from_elf_section
819 (input_bfd, symtab_hdr->sh_link, sym->st_name);
820 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
821 }
822 else
823 {
824 /* It's a global symbol. */
825 bfd_boolean unresolved_reloc;
62d887d4 826 bfd_boolean warned, ignored;
84e94c90
NC		 827
828 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
829 r_symndx, symtab_hdr, sym_hashes,
830 h, sec, relocation,
62d887d4 831 unresolved_reloc, warned, ignored);
84e94c90
NC		 832 name = h->root.root.string;
833 }
834
dbaa2011 835 if (sec != NULL && discarded_section (sec))
e4067dbb 836 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 837 rel, 1, relend, howto, 0, contents);
84e94c90 838
0e1862bb 839 if (bfd_link_relocatable (info))
84e94c90
NC		 840 {
841 /* This is a relocatable link. We don't have to change
842 anything, unless the reloc is against a section symbol,
843 in which case we have to adjust according to where the
844 section symbol winds up in the output section. */
845 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
846 continue;
847
848 /* If partial_inplace, we need to store any additional addend
849 back in the section. */
850 if (! howto->partial_inplace)
851 continue;
852
853 /* Shouldn't reach here. */
854 abort ();
855 r = bfd_reloc_ok;
856 }
857 else
858 {
859 switch (howto->type)
860 {
861 case R_LM32_GPREL16:
862 if (!lm32_elf_assign_gp (output_bfd, &gp))
863 r = bfd_reloc_dangerous;
864 else
865 {
866 relocation = relocation + rel->r_addend - gp;
867 rel->r_addend = 0;
868 if ((signed)relocation < -32768 || (signed)relocation > 32767)
869 r = bfd_reloc_outofrange;
870 else
871 {
872 r = _bfd_final_link_relocate (howto, input_bfd,
873 input_section, contents,
874 rel->r_offset, relocation,
875 rel->r_addend);
876 }
877 }
878 break;
879 case R_LM32_16_GOT:
880 /* Relocation is to the entry for this symbol in the global
881 offset table. */
882 BFD_ASSERT (sgot != NULL);
883 if (h != NULL)
884 {
885 bfd_boolean dyn;
886 bfd_vma off;
887
888 off = h->got.offset;
889 BFD_ASSERT (off != (bfd_vma) -1);
890
891 dyn = htab->root.dynamic_sections_created;
0e1862bb
L		 892 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
893 bfd_link_pic (info),
894 h)
895 || (bfd_link_pic (info)
84e94c90
NC		 896 && (info->symbolic
897 || h->dynindx == -1
898 || h->forced_local)
899 && h->def_regular))
900 {
901 /* This is actually a static link, or it is a
902 -Bsymbolic link and the symbol is defined
903 locally, or the symbol was forced to be local
904 because of a version file. We must initialize
905 this entry in the global offset table. Since the
906 offset must always be a multiple of 4, we use the
907 least significant bit to record whether we have
908 initialized it already.
909
910 When doing a dynamic link, we create a .rela.got
911 relocation entry to initialize the value. This
912 is done in the finish_dynamic_symbol routine. */
913 if ((off & 1) != 0)
914 off &= ~1;
915 else
916 {
917 /* Write entry in GOT */
918 bfd_put_32 (output_bfd, relocation,
919 sgot->contents + off);
920 /* Create entry in .rofixup pointing to GOT entry. */
921 if (IS_FDPIC (output_bfd) && h->root.type != bfd_link_hash_undefweak)
922 {
923 _lm32fdpic_add_rofixup (output_bfd,
924 lm32fdpic_fixup32_section
925 (info),
926 sgot->output_section->vma
927 + sgot->output_offset
928 + off);
929 }
930 /* Mark GOT entry as having been written. */
931 h->got.offset |= 1;
932 }
933 }
934
935 relocation = sgot->output_offset + off;
936 }
937 else
938 {
939 bfd_vma off;
940 bfd_byte *loc;
941
942 BFD_ASSERT (local_got_offsets != NULL
943 && local_got_offsets[r_symndx] != (bfd_vma) -1);
944
945 /* Get offset into GOT table. */
946 off = local_got_offsets[r_symndx];
947
948 /* The offset must always be a multiple of 4. We use
949 the least significant bit to record whether we have
950 already processed this entry. */
951 if ((off & 1) != 0)
952 off &= ~1;
953 else
954 {
955 /* Write entry in GOT. */
956 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
957 /* Create entry in .rofixup pointing to GOT entry. */
958 if (IS_FDPIC (output_bfd))
959 {
960 _lm32fdpic_add_rofixup (output_bfd,
961 lm32fdpic_fixup32_section
962 (info),
963 sgot->output_section->vma
964 + sgot->output_offset
965 + off);
966 }
967
0e1862bb 968 if (bfd_link_pic (info))
84e94c90
NC		 969 {
970 asection *srelgot;
971 Elf_Internal_Rela outrel;
972
973 /* We need to generate a R_LM32_RELATIVE reloc
974 for the dynamic linker. */
ce558b89 975 srelgot = htab->root.srelgot;
84e94c90
NC		 976 BFD_ASSERT (srelgot != NULL);
977
978 outrel.r_offset = (sgot->output_section->vma
979 + sgot->output_offset
980 + off);
981 outrel.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
982 outrel.r_addend = relocation;
983 loc = srelgot->contents;
984 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
985 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
986 ++srelgot->reloc_count;
987 }
988
989 local_got_offsets[r_symndx] |= 1;
990 }
991
992
993 relocation = sgot->output_offset + off;
994 }
995
996 /* Addend should be zero. */
997 if (rel->r_addend != 0)
4eca0228 998 _bfd_error_handler (_("internal error: addend should be zero for R_LM32_16_GOT"));
84e94c90
NC		 999
1000 r = _bfd_final_link_relocate (howto,
1001 input_bfd,
1002 input_section,
1003 contents,
1004 rel->r_offset,
1005 relocation,
1006 rel->r_addend);
1007 break;
1008
1009 case R_LM32_GOTOFF_LO16:
1010 case R_LM32_GOTOFF_HI16:
1011 /* Relocation is offset from GOT. */
1012 BFD_ASSERT (sgot != NULL);
1013 relocation -= sgot->output_section->vma;
1014 /* Account for sign-extension. */
1015 if ((r_type == R_LM32_GOTOFF_HI16)
1016 && ((relocation + rel->r_addend) & 0x8000))
1017 rel->r_addend += 0x10000;
1018 r = _bfd_final_link_relocate (howto,
1019 input_bfd,
1020 input_section,
1021 contents,
1022 rel->r_offset,
1023 relocation,
1024 rel->r_addend);
1025 break;
1026
1027 case R_LM32_32:
1028 if (IS_FDPIC (output_bfd))
1029 {
1030 if ((!h) || (h && h->root.type != bfd_link_hash_undefweak))
1031 {
1032 /* Only create .rofixup entries for relocs in loadable sections. */
1033 if ((bfd_get_section_flags (output_bfd, input_section->output_section)
1034 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
1035
1036 {
1037 /* Check address to be modified is writable. */
1038 if (_lm32fdpic_osec_readonly_p (output_bfd,
1039 input_section
1040 ->output_section))
1041 {
1042 info->callbacks->warning
1043 (info,
1044 _("cannot emit dynamic relocations in read-only section"),
1045 name, input_bfd, input_section, rel->r_offset);
1046 return FALSE;
1047 }
1048 /* Create entry in .rofixup section. */
1049 _lm32fdpic_add_rofixup (output_bfd,
1050 lm32fdpic_fixup32_section (info),
1051 input_section->output_section->vma
1052 + input_section->output_offset
1053 + rel->r_offset);
1054 }
1055 }
1056 }
1057 /* Fall through. */
1058
1059 default:
1060 r = _bfd_final_link_relocate (howto,
1061 input_bfd,
1062 input_section,
1063 contents,
1064 rel->r_offset,
1065 relocation,
1066 rel->r_addend);
1067 break;
1068 }
1069 }
1070
1071 if (r != bfd_reloc_ok)
1072 {
84e94c90
NC		 1073 const char *msg = NULL;
1074 arelent bfd_reloc;
84e94c90
NC		 1075
1076 lm32_info_to_howto_rela (input_bfd, &bfd_reloc, rel);
1077 howto = bfd_reloc.howto;
1078
1079 if (h != NULL)
1080 name = h->root.root.string;
1081 else
1082 {
1083 name = (bfd_elf_string_from_elf_section
1084 (input_bfd, symtab_hdr->sh_link, sym->st_name));
1085 if (name == NULL || *name == '\0')
1086 name = bfd_section_name (input_bfd, sec);
1087 }
1088
1089 switch (r)
1090 {
1091 case bfd_reloc_overflow:
1092 if ((h != NULL)
1093 && (h->root.type == bfd_link_hash_undefweak))
1094 break;
1a72702b
AM		 1095 (*info->callbacks->reloc_overflow)
1096 (info, (h ? &h->root : NULL), name, howto->name,
1097 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
84e94c90
NC		 1098 break;
1099
1100 case bfd_reloc_undefined:
1a72702b
AM		 1101 (*info->callbacks->undefined_symbol)
1102 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
84e94c90
NC		 1103 break;
1104
1105 case bfd_reloc_outofrange:
1106 msg = _("internal error: out of range error");
1107 goto common_error;
1108
1109 case bfd_reloc_notsupported:
1110 msg = _("internal error: unsupported relocation error");
1111 goto common_error;
1112
1113 case bfd_reloc_dangerous:
1114 msg = _("internal error: dangerous error");
1115 goto common_error;
1116
1117 default:
1118 msg = _("internal error: unknown error");
1119 /* fall through */
1120
1121 common_error:
1a72702b
AM		 1122 (*info->callbacks->warning) (info, msg, name, input_bfd,
1123 input_section, rel->r_offset);
84e94c90
NC		 1124 break;
1125 }
1126 }
1127 }
1128
1129 return TRUE;
1130}
1131
1132static asection *
1133lm32_elf_gc_mark_hook (asection *sec,
1134 struct bfd_link_info *info,
1135 Elf_Internal_Rela *rel,
1136 struct elf_link_hash_entry *h,
1137 Elf_Internal_Sym *sym)
1138{
1139 if (h != NULL)
1140 switch (ELF32_R_TYPE (rel->r_info))
1141 {
1142 case R_LM32_GNU_VTINHERIT:
1143 case R_LM32_GNU_VTENTRY:
1144 return NULL;
1145 }
1146
1147 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1148}
1149
84e94c90
NC		 1150/* Look through the relocs for a section during the first phase. */
1151
1152static bfd_boolean
1153lm32_elf_check_relocs (bfd *abfd,
1154 struct bfd_link_info *info,
1155 asection *sec,
1156 const Elf_Internal_Rela *relocs)
1157{
1158 Elf_Internal_Shdr *symtab_hdr;
1159 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
1160 const Elf_Internal_Rela *rel;
1161 const Elf_Internal_Rela *rel_end;
1162 struct elf_lm32_link_hash_table *htab;
1163 bfd *dynobj;
84e94c90 1164
0e1862bb 1165 if (bfd_link_relocatable (info))
84e94c90
NC		 1166 return TRUE;
1167
65281396
AM		 1168 /* Don't do anything special with non-loaded, non-alloced sections.
1169 In particular, any relocs in such sections should not affect GOT
1170 and PLT reference counting (ie. we don't allow them to create GOT
1171 or PLT entries), there's no possibility or desire to optimize TLS
1172 relocs, and there's not much point in propagating relocs to shared
1173 libs that the dynamic linker won't relocate. */
1174 if ((sec->flags & SEC_ALLOC) == 0)
1175 return TRUE;
1176
84e94c90
NC		 1177 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1178 sym_hashes = elf_sym_hashes (abfd);
1179 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
1180 if (!elf_bad_symtab (abfd))
1181 sym_hashes_end -= symtab_hdr->sh_info;
1182
1183 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 1184 if (htab == NULL)
1185 return FALSE;
1186
84e94c90 1187 dynobj = htab->root.dynobj;
84e94c90
NC		 1188
1189 rel_end = relocs + sec->reloc_count;
1190 for (rel = relocs; rel < rel_end; rel++)
1191 {
1192 int r_type;
1193 struct elf_link_hash_entry *h;
1194 unsigned long r_symndx;
1195
1196 r_symndx = ELF32_R_SYM (rel->r_info);
1197 r_type = ELF32_R_TYPE (rel->r_info);
1198 if (r_symndx < symtab_hdr->sh_info)
1199 h = NULL;
1200 else
1201 {
1202 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1203 while (h->root.type == bfd_link_hash_indirect
1204 || h->root.type == bfd_link_hash_warning)
1205 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1206 }
1207
1208 /* Some relocs require a global offset table. */
ce558b89 1209 if (htab->root.sgot == NULL)
84e94c90
NC		 1210 {
1211 switch (r_type)
1212 {
1213 case R_LM32_16_GOT:
1214 case R_LM32_GOTOFF_HI16:
1215 case R_LM32_GOTOFF_LO16:
1216 if (dynobj == NULL)
1217 htab->root.dynobj = dynobj = abfd;
ce558b89 1218 if (!_bfd_elf_create_got_section (dynobj, info))
84e94c90
NC		 1219 return FALSE;
1220 break;
1221 }
1222 }
1223
1224 /* Some relocs require a rofixup table. */
1225 if (IS_FDPIC (abfd))
1226 {
1227 switch (r_type)
1228 {
1229 case R_LM32_32:
1230 /* FDPIC requires a GOT if there is a .rofixup section
1231 (Normal ELF doesn't). */
1232 if (dynobj == NULL)
1233 htab->root.dynobj = dynobj = abfd;
ce558b89 1234 if (!_bfd_elf_create_got_section (dynobj, info))
84e94c90
NC		 1235 return FALSE;
1236 /* Create .rofixup section */
1237 if (htab->sfixup32 == NULL)
1238 {
3d4d4302 1239 if (! create_rofixup_section (dynobj, info))
84e94c90
NC		 1240 return FALSE;
1241 }
1242 break;
1243 case R_LM32_16_GOT:
1244 case R_LM32_GOTOFF_HI16:
1245 case R_LM32_GOTOFF_LO16:
1246 /* Create .rofixup section. */
1247 if (htab->sfixup32 == NULL)
1248 {
3d4d4302
AM		 1249 if (dynobj == NULL)
1250 htab->root.dynobj = dynobj = abfd;
1251 if (! create_rofixup_section (dynobj, info))
84e94c90
NC		 1252 return FALSE;
1253 }
1254 break;
1255 }
1256 }
1257
1258 switch (r_type)
1259 {
1260 case R_LM32_16_GOT:
1261 if (h != NULL)
1262 h->got.refcount += 1;
1263 else
1264 {
1265 bfd_signed_vma *local_got_refcounts;
1266
1267 /* This is a global offset table entry for a local symbol. */
1268 local_got_refcounts = elf_local_got_refcounts (abfd);
1269 if (local_got_refcounts == NULL)
1270 {
1271 bfd_size_type size;
1272
1273 size = symtab_hdr->sh_info;
1274 size *= sizeof (bfd_signed_vma);
1275 local_got_refcounts = bfd_zalloc (abfd, size);
1276 if (local_got_refcounts == NULL)
1277 return FALSE;
1278 elf_local_got_refcounts (abfd) = local_got_refcounts;
1279 }
1280 local_got_refcounts[r_symndx] += 1;
1281 }
1282 break;
1283
1284 /* This relocation describes the C++ object vtable hierarchy.
1285 Reconstruct it for later use during GC. */
1286 case R_LM32_GNU_VTINHERIT:
1287 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1288 return FALSE;
1289 break;
1290
1291 /* This relocation describes which C++ vtable entries are actually
1292 used. Record for later use during GC. */
1293 case R_LM32_GNU_VTENTRY:
1294 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1295 return FALSE;
1296 break;
1297
1298 }
1299 }
1300
1301 return TRUE;
1302}
1303
1304/* Finish up the dynamic sections. */
1305
1306static bfd_boolean
1307lm32_elf_finish_dynamic_sections (bfd *output_bfd,
1308 struct bfd_link_info *info)
1309{
1310 struct elf_lm32_link_hash_table *htab;
1311 bfd *dynobj;
1312 asection *sdyn;
1313 asection *sgot;
1314
1315 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 1316 if (htab == NULL)
1317 return FALSE;
1318
84e94c90
NC		 1319 dynobj = htab->root.dynobj;
1320
ce558b89 1321 sgot = htab->root.sgotplt;
3d4d4302 1322 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
84e94c90
NC		 1323
1324 if (htab->root.dynamic_sections_created)
1325 {
1326 asection *splt;
1327 Elf32_External_Dyn *dyncon, *dynconend;
1328
1329 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1330
1331 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1332 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1333
1334 for (; dyncon < dynconend; dyncon++)
1335 {
1336 Elf_Internal_Dyn dyn;
84e94c90
NC		 1337 asection *s;
1338
1339 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1340
1341 switch (dyn.d_tag)
1342 {
1343 default:
1344 break;
1345
1346 case DT_PLTGOT:
ce558b89 1347 s = htab->root.sgotplt;
84e94c90
NC		 1348 goto get_vma;
1349 case DT_JMPREL:
ce558b89 1350 s = htab->root.srelplt;
84e94c90 1351 get_vma:
4ade44b7 1352 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
84e94c90
NC		 1353 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1354 break;
1355
1356 case DT_PLTRELSZ:
ce558b89 1357 s = htab->root.srelplt;
84e94c90
NC		 1358 dyn.d_un.d_val = s->size;
1359 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1360 break;
84e94c90
NC		 1361 }
1362 }
1363
1364 /* Fill in the first entry in the procedure linkage table. */
ce558b89 1365 splt = htab->root.splt;
84e94c90
NC		 1366 if (splt && splt->size > 0)
1367 {
0e1862bb 1368 if (bfd_link_pic (info))
84e94c90
NC		 1369 {
1370 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
1371 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
1372 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
1373 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
1374 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
1375 }
1376 else
1377 {
1378 unsigned long addr;
1379 /* addr = .got + 4 */
1380 addr = sgot->output_section->vma + sgot->output_offset + 4;
1381 bfd_put_32 (output_bfd,
1382 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1383 splt->contents);
1384 bfd_put_32 (output_bfd,
1385 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1386 splt->contents + 4);
1387 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1388 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1389 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1390 }
1391
1392 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
1393 PLT_ENTRY_SIZE;
1394 }
1395 }
1396
1397 /* Fill in the first three entries in the global offset table. */
1398 if (sgot && sgot->size > 0)
1399 {
1400 if (sdyn == NULL)
1401 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1402 else
1403 bfd_put_32 (output_bfd,
1404 sdyn->output_section->vma + sdyn->output_offset,
1405 sgot->contents);
1406 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1407 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1408
1409 /* FIXME: This can be null if create_dynamic_sections wasn't called. */
1410 if (elf_section_data (sgot->output_section) != NULL)
1411 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1412 }
1413
1414 if (lm32fdpic_fixup32_section (info))
1415 {
1416 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
1417 bfd_vma got_value = hgot->root.u.def.value
1418 + hgot->root.u.def.section->output_section->vma
1419 + hgot->root.u.def.section->output_offset;
1420 struct bfd_link_hash_entry *hend;
1421
1422 /* Last entry is pointer to GOT. */
1423 _lm32fdpic_add_rofixup (output_bfd, lm32fdpic_fixup32_section (info), got_value);
1424
1425 /* Check we wrote enough entries. */
1426 if (lm32fdpic_fixup32_section (info)->size
1427 != (lm32fdpic_fixup32_section (info)->reloc_count * 4))
1428 {
4eca0228 1429 _bfd_error_handler
d42c267e 1430 ("LINKER BUG: .rofixup section size mismatch: size/4 %Ld != relocs %d",
84e94c90
NC		 1431 lm32fdpic_fixup32_section (info)->size/4,
1432 lm32fdpic_fixup32_section (info)->reloc_count);
1433 return FALSE;
1434 }
1435
1436 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
1437 FALSE, FALSE, TRUE);
1438 if (hend
1439 && (hend->type == bfd_link_hash_defined
1440 || hend->type == bfd_link_hash_defweak))
1441 {
1442 bfd_vma value =
1443 lm32fdpic_fixup32_section (info)->output_section->vma
1444 + lm32fdpic_fixup32_section (info)->output_offset
1445 + lm32fdpic_fixup32_section (info)->size
1446 - hend->u.def.section->output_section->vma
1447 - hend->u.def.section->output_offset;
1448 BFD_ASSERT (hend->u.def.value == value);
1449 if (hend->u.def.value != value)
1450 {
4eca0228 1451 _bfd_error_handler
d42c267e 1452 ("LINKER BUG: .rofixup section hend->u.def.value != value: %Ld != %Ld", hend->u.def.value, value);
84e94c90
NC		 1453 return FALSE;
1454 }
1455 }
1456 }
1457
1458 return TRUE;
1459}
1460
1461/* Finish up dynamic symbol handling. We set the contents of various
1462 dynamic sections here. */
1463
1464static bfd_boolean
1465lm32_elf_finish_dynamic_symbol (bfd *output_bfd,
1466 struct bfd_link_info *info,
1467 struct elf_link_hash_entry *h,
1468 Elf_Internal_Sym *sym)
1469{
1470 struct elf_lm32_link_hash_table *htab;
84e94c90
NC		 1471 bfd_byte *loc;
1472
1473 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 1474 if (htab == NULL)
1475 return FALSE;
1476
84e94c90
NC		 1477 if (h->plt.offset != (bfd_vma) -1)
1478 {
1479 asection *splt;
1480 asection *sgot;
1481 asection *srela;
1482
1483 bfd_vma plt_index;
1484 bfd_vma got_offset;
1485 Elf_Internal_Rela rela;
1486
1487 /* This symbol has an entry in the procedure linkage table. Set
1488 it up. */
1489 BFD_ASSERT (h->dynindx != -1);
1490
ce558b89
AM		 1491 splt = htab->root.splt;
1492 sgot = htab->root.sgotplt;
1493 srela = htab->root.srelplt;
84e94c90
NC		 1494 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1495
1496 /* Get the index in the procedure linkage table which
1497 corresponds to this symbol. This is the index of this symbol
1498 in all the symbols for which we are making plt entries. The
1499 first entry in the procedure linkage table is reserved. */
1500 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1501
1502 /* Get the offset into the .got table of the entry that
1503 corresponds to this function. Each .got entry is 4 bytes.
1504 The first three are reserved. */
1505 got_offset = (plt_index + 3) * 4;
1506
1507 /* Fill in the entry in the procedure linkage table. */
0e1862bb 1508 if (! bfd_link_pic (info))
84e94c90
NC		 1509 {
1510 /* TODO */
1511 }
1512 else
1513 {
1514 /* TODO */
1515 }
1516
1517 /* Fill in the entry in the global offset table. */
1518 bfd_put_32 (output_bfd,
1519 (splt->output_section->vma
1520 + splt->output_offset
1521 + h->plt.offset
1522 + 12), /* same offset */
1523 sgot->contents + got_offset);
1524
1525 /* Fill in the entry in the .rela.plt section. */
1526 rela.r_offset = (sgot->output_section->vma
1527 + sgot->output_offset
1528 + got_offset);
1529 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_JMP_SLOT);
1530 rela.r_addend = 0;
1531 loc = srela->contents;
1532 loc += plt_index * sizeof (Elf32_External_Rela);
1533 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1534
1535 if (!h->def_regular)
1536 {
1537 /* Mark the symbol as undefined, rather than as defined in
1538 the .plt section. Leave the value alone. */
1539 sym->st_shndx = SHN_UNDEF;
1540 }
1541
1542 }
1543
1544 if (h->got.offset != (bfd_vma) -1)
1545 {
1546 asection *sgot;
1547 asection *srela;
1548 Elf_Internal_Rela rela;
1549
1550 /* This symbol has an entry in the global offset table. Set it
1551 up. */
ce558b89
AM		 1552 sgot = htab->root.sgot;
1553 srela = htab->root.srelgot;
84e94c90
NC		 1554 BFD_ASSERT (sgot != NULL && srela != NULL);
1555
1556 rela.r_offset = (sgot->output_section->vma
1557 + sgot->output_offset
1558 + (h->got.offset &~ 1));
1559
1560 /* If this is a -Bsymbolic link, and the symbol is defined
1561 locally, we just want to emit a RELATIVE reloc. Likewise if
1562 the symbol was forced to be local because of a version file.
1563 The entry in the global offset table will already have been
1564 initialized in the relocate_section function. */
0e1862bb 1565 if (bfd_link_pic (info)
84e94c90
NC		 1566 && (info->symbolic
1567 || h->dynindx == -1
1568 || h->forced_local)
1569 && h->def_regular)
1570 {
1571 rela.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
1572 rela.r_addend = (h->root.u.def.value
1573 + h->root.u.def.section->output_section->vma
1574 + h->root.u.def.section->output_offset);
1575 }
1576 else
1577 {
1578 BFD_ASSERT ((h->got.offset & 1) == 0);
1579 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1580 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_GLOB_DAT);
1581 rela.r_addend = 0;
1582 }
1583
1584 loc = srela->contents;
1585 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1586 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1587 ++srela->reloc_count;
1588 }
1589
1590 if (h->needs_copy)
1591 {
1592 asection *s;
1593 Elf_Internal_Rela rela;
1594
1595 /* This symbols needs a copy reloc. Set it up. */
1596 BFD_ASSERT (h->dynindx != -1
1597 && (h->root.type == bfd_link_hash_defined
1598 || h->root.type == bfd_link_hash_defweak));
1599
3d4d4302 1600 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
84e94c90
NC		 1601 BFD_ASSERT (s != NULL);
1602
1603 rela.r_offset = (h->root.u.def.value
1604 + h->root.u.def.section->output_section->vma
1605 + h->root.u.def.section->output_offset);
1606 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_COPY);
1607 rela.r_addend = 0;
1608 loc = s->contents;
1609 loc += s->reloc_count * sizeof (Elf32_External_Rela);
1610 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1611 ++s->reloc_count;
1612 }
1613
1614 /* Mark some specially defined symbols as absolute. */
9637f6ef 1615 if (h == htab->root.hdynamic || h == htab->root.hgot)
84e94c90
NC		 1616 sym->st_shndx = SHN_ABS;
1617
1618 return TRUE;
1619}
1620
1621static enum elf_reloc_type_class
7e612e98
AM		 1622lm32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1623 const asection *rel_sec ATTRIBUTE_UNUSED,
1624 const Elf_Internal_Rela *rela)
84e94c90
NC		 1625{
1626 switch ((int) ELF32_R_TYPE (rela->r_info))
1627 {
1628 case R_LM32_RELATIVE: return reloc_class_relative;
1629 case R_LM32_JMP_SLOT: return reloc_class_plt;
1630 case R_LM32_COPY: return reloc_class_copy;
1631 default: return reloc_class_normal;
1632 }
1633}
1634
63c1f59d
AM		 1635/* Find dynamic relocs for H that apply to read-only sections. */
1636
1637static asection *
1638readonly_dynrelocs (struct elf_link_hash_entry *h)
1639{
3bf083ed 1640 struct elf_dyn_relocs *p;
63c1f59d
AM		 1641 struct elf_lm32_link_hash_entry *eh = (struct elf_lm32_link_hash_entry *) h;
1642
1643 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1644 {
1645 asection *s = p->sec->output_section;
1646
1647 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1648 return p->sec;
1649 }
1650 return NULL;
1651}
1652
84e94c90
NC		 1653/* Adjust a symbol defined by a dynamic object and referenced by a
1654 regular object. The current definition is in some section of the
1655 dynamic object, but we're not including those sections. We have to
1656 change the definition to something the rest of the link can
1657 understand. */
1658
1659static bfd_boolean
1660lm32_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1661 struct elf_link_hash_entry *h)
1662{
1663 struct elf_lm32_link_hash_table *htab;
84e94c90
NC		 1664 bfd *dynobj;
1665 asection *s;
1666
1667 dynobj = elf_hash_table (info)->dynobj;
1668
1669 /* Make sure we know what is going on here. */
1670 BFD_ASSERT (dynobj != NULL
1671 && (h->needs_plt
60d67dc8 1672 || h->is_weakalias
84e94c90
NC		 1673 || (h->def_dynamic
1674 && h->ref_regular
1675 && !h->def_regular)));
1676
1677 /* If this is a function, put it in the procedure linkage table. We
1678 will fill in the contents of the procedure linkage table later,
1679 when we know the address of the .got section. */
1680 if (h->type == STT_FUNC
1681 || h->needs_plt)
1682 {
0e1862bb 1683 if (! bfd_link_pic (info)
84e94c90
NC		 1684 && !h->def_dynamic
1685 && !h->ref_dynamic
1686 && h->root.type != bfd_link_hash_undefweak
1687 && h->root.type != bfd_link_hash_undefined)
1688 {
1689 /* This case can occur if we saw a PLT reloc in an input
1690 file, but the symbol was never referred to by a dynamic
1691 object. In such a case, we don't actually need to build
1692 a procedure linkage table, and we can just do a PCREL
1693 reloc instead. */
1694 h->plt.offset = (bfd_vma) -1;
1695 h->needs_plt = 0;
1696 }
1697
1698 return TRUE;
1699 }
1700 else
1701 h->plt.offset = (bfd_vma) -1;
1702
1703 /* If this is a weak symbol, and there is a real definition, the
1704 processor independent code will have arranged for us to see the
1705 real definition first, and we can just use the same value. */
60d67dc8 1706 if (h->is_weakalias)
84e94c90 1707 {
60d67dc8
AM		 1708 struct elf_link_hash_entry *def = weakdef (h);
1709 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1710 h->root.u.def.section = def->root.u.def.section;
1711 h->root.u.def.value = def->root.u.def.value;
84e94c90
NC		 1712 return TRUE;
1713 }
1714
1715 /* This is a reference to a symbol defined by a dynamic object which
1716 is not a function. */
1717
1718 /* If we are creating a shared library, we must presume that the
1719 only references to the symbol are via the global offset table.
1720 For such cases we need not do anything here; the relocations will
1721 be handled correctly by relocate_section. */
0e1862bb 1722 if (bfd_link_pic (info))
84e94c90
NC		 1723 return TRUE;
1724
1725 /* If there are no references to this symbol that do not use the
1726 GOT, we don't need to generate a copy reloc. */
1727 if (!h->non_got_ref)
1728 return TRUE;
1729
1730 /* If -z nocopyreloc was given, we won't generate them either. */
3bf083ed 1731 if (0 && info->nocopyreloc)
84e94c90
NC		 1732 {
1733 h->non_got_ref = 0;
1734 return TRUE;
1735 }
1736
3bf083ed
AM		 1737 /* If we don't find any dynamic relocs in read-only sections, then
1738 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1739 if (0 && !readonly_dynrelocs (h))
84e94c90
NC		 1740 {
1741 h->non_got_ref = 0;
1742 return TRUE;
1743 }
1744
84e94c90
NC		 1745 /* We must allocate the symbol in our .dynbss section, which will
1746 become part of the .bss section of the executable. There will be
1747 an entry for this symbol in the .dynsym section. The dynamic
1748 object will contain position independent code, so all references
1749 from the dynamic object to this symbol will go through the global
1750 offset table. The dynamic linker will use the .dynsym entry to
1751 determine the address it must put in the global offset table, so
1752 both the dynamic object and the regular object will refer to the
1753 same memory location for the variable. */
1754
1755 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 1756 if (htab == NULL)
1757 return FALSE;
1758
84e94c90
NC		 1759 s = htab->sdynbss;
1760 BFD_ASSERT (s != NULL);
1761
1762 /* We must generate a R_LM32_COPY reloc to tell the dynamic linker
1763 to copy the initial value out of the dynamic object and into the
1764 runtime process image. We need to remember the offset into the
1765 .rela.bss section we are going to use. */
1d7e9d18 1766 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
84e94c90
NC		 1767 {
1768 asection *srel;
1769
1770 srel = htab->srelbss;
1771 BFD_ASSERT (srel != NULL);
1772 srel->size += sizeof (Elf32_External_Rela);
1773 h->needs_copy = 1;
1774 }
1775
6cabe1ea 1776 return _bfd_elf_adjust_dynamic_copy (info, h, s);
84e94c90
NC		 1777}
1778
1779/* Allocate space in .plt, .got and associated reloc sections for
1780 dynamic relocs. */
1781
1782static bfd_boolean
1783allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1784{
1785 struct bfd_link_info *info;
1786 struct elf_lm32_link_hash_table *htab;
1787 struct elf_lm32_link_hash_entry *eh;
3bf083ed 1788 struct elf_dyn_relocs *p;
84e94c90
NC		 1789
1790 if (h->root.type == bfd_link_hash_indirect)
1791 return TRUE;
1792
84e94c90
NC		 1793 info = (struct bfd_link_info *) inf;
1794 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 1795 if (htab == NULL)
1796 return FALSE;
84e94c90
NC		 1797
1798 eh = (struct elf_lm32_link_hash_entry *) h;
1799
1800 if (htab->root.dynamic_sections_created
1801 && h->plt.refcount > 0)
1802 {
1803 /* Make sure this symbol is output as a dynamic symbol.
1804 Undefined weak syms won't yet be marked as dynamic. */
1805 if (h->dynindx == -1
1806 && !h->forced_local)
1807 {
1808 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1809 return FALSE;
1810 }
1811
0e1862bb 1812 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
84e94c90 1813 {
ce558b89 1814 asection *s = htab->root.splt;
84e94c90
NC		 1815
1816 /* If this is the first .plt entry, make room for the special
1817 first entry. */
1818 if (s->size == 0)
1819 s->size += PLT_ENTRY_SIZE;
1820
1821 h->plt.offset = s->size;
1822
1823 /* If this symbol is not defined in a regular file, and we are
1824 not generating a shared library, then set the symbol to this
1825 location in the .plt. This is required to make function
1826 pointers compare as equal between the normal executable and
1827 the shared library. */
0e1862bb 1828 if (! bfd_link_pic (info)
84e94c90
NC		 1829 && !h->def_regular)
1830 {
1831 h->root.u.def.section = s;
1832 h->root.u.def.value = h->plt.offset;
1833 }
1834
1835 /* Make room for this entry. */
1836 s->size += PLT_ENTRY_SIZE;
1837
1838 /* We also need to make an entry in the .got.plt section, which
1839 will be placed in the .got section by the linker script. */
ce558b89 1840 htab->root.sgotplt->size += 4;
84e94c90
NC		 1841
1842 /* We also need to make an entry in the .rel.plt section. */
ce558b89 1843 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
84e94c90
NC		 1844 }
1845 else
1846 {
1847 h->plt.offset = (bfd_vma) -1;
1848 h->needs_plt = 0;
1849 }
1850 }
1851 else
1852 {
1853 h->plt.offset = (bfd_vma) -1;
1854 h->needs_plt = 0;
1855 }
1856
1857 if (h->got.refcount > 0)
1858 {
1859 asection *s;
1860 bfd_boolean dyn;
1861
1862 /* Make sure this symbol is output as a dynamic symbol.
1863 Undefined weak syms won't yet be marked as dynamic. */
1864 if (h->dynindx == -1
1865 && !h->forced_local)
1866 {
1867 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1868 return FALSE;
1869 }
1870
ce558b89 1871 s = htab->root.sgot;
84e94c90
NC		 1872
1873 h->got.offset = s->size;
1874 s->size += 4;
1875 dyn = htab->root.dynamic_sections_created;
0e1862bb 1876 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
ce558b89 1877 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
84e94c90
NC		 1878 }
1879 else
1880 h->got.offset = (bfd_vma) -1;
1881
1882 if (eh->dyn_relocs == NULL)
1883 return TRUE;
1884
1885 /* In the shared -Bsymbolic case, discard space allocated for
1886 dynamic pc-relative relocs against symbols which turn out to be
1887 defined in regular objects. For the normal shared case, discard
1888 space for pc-relative relocs that have become local due to symbol
1889 visibility changes. */
1890
0e1862bb 1891 if (bfd_link_pic (info))
84e94c90
NC		 1892 {
1893 if (h->def_regular
1894 && (h->forced_local
1895 || info->symbolic))
1896 {
3bf083ed 1897 struct elf_dyn_relocs **pp;
84e94c90
NC		 1898
1899 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
1900 {
1901 p->count -= p->pc_count;
1902 p->pc_count = 0;
1903 if (p->count == 0)
1904 *pp = p->next;
1905 else
1906 pp = &p->next;
1907 }
1908 }
1909
1910 /* Also discard relocs on undefined weak syms with non-default
1911 visibility. */
1912 if (eh->dyn_relocs != NULL
1913 && h->root.type == bfd_link_hash_undefweak)
1914 {
1915 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1916 eh->dyn_relocs = NULL;
1917
1918 /* Make sure undefined weak symbols are output as a dynamic
1919 symbol in PIEs. */
1920 else if (h->dynindx == -1
1921 && !h->forced_local)
1922 {
1923 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1924 return FALSE;
1925 }
1926 }
1927 }
1928 else
1929 {
1930 /* For the non-shared case, discard space for relocs against
1931 symbols which turn out to need copy relocs or are not
1932 dynamic. */
1933
1934 if (!h->non_got_ref
1935 && ((h->def_dynamic
1936 && !h->def_regular)
1937 || (htab->root.dynamic_sections_created
1938 && (h->root.type == bfd_link_hash_undefweak
1939 || h->root.type == bfd_link_hash_undefined))))
1940 {
1941 /* Make sure this symbol is output as a dynamic symbol.
1942 Undefined weak syms won't yet be marked as dynamic. */
1943 if (h->dynindx == -1
1944 && !h->forced_local)
1945 {
1946 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1947 return FALSE;
1948 }
1949
1950 /* If that succeeded, we know we'll be keeping all the
1951 relocs. */
1952 if (h->dynindx != -1)
1953 goto keep;
1954 }
1955
1956 eh->dyn_relocs = NULL;
1957
1958 keep: ;
1959 }
1960
1961 /* Finally, allocate space. */
1962 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1963 {
1964 asection *sreloc = elf_section_data (p->sec)->sreloc;
1965 sreloc->size += p->count * sizeof (Elf32_External_Rela);
1966 }
1967
1968 return TRUE;
1969}
1970
63c1f59d
AM		 1971/* Set DF_TEXTREL if we find any dynamic relocs that apply to
1972 read-only sections. */
84e94c90
NC		 1973
1974static bfd_boolean
63c1f59d 1975maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
84e94c90 1976{
63c1f59d 1977 asection *sec;
84e94c90 1978
63c1f59d
AM		 1979 if (h->root.type == bfd_link_hash_indirect)
1980 return TRUE;
84e94c90 1981
63c1f59d
AM		 1982 sec = readonly_dynrelocs (h);
1983 if (sec != NULL)
1984 {
1985 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
84e94c90 1986
63c1f59d
AM		 1987 info->flags |= DF_TEXTREL;
1988 info->callbacks->minfo
1989 (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
1990 sec->owner, h->root.root.string, sec);
84e94c90 1991
63c1f59d
AM		 1992 /* Not an error, just cut short the traversal. */
1993 return FALSE;
84e94c90
NC		 1994 }
1995 return TRUE;
1996}
1997
1998/* Set the sizes of the dynamic sections. */
1999
2000static bfd_boolean
2001lm32_elf_size_dynamic_sections (bfd *output_bfd,
2002 struct bfd_link_info *info)
2003{
2004 struct elf_lm32_link_hash_table *htab;
2005 bfd *dynobj;
2006 asection *s;
2007 bfd_boolean relocs;
2008 bfd *ibfd;
2009
2010 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 2011 if (htab == NULL)
2012 return FALSE;
2013
84e94c90
NC		 2014 dynobj = htab->root.dynobj;
2015 BFD_ASSERT (dynobj != NULL);
2016
2017 if (htab->root.dynamic_sections_created)
2018 {
2019 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2020 if (bfd_link_executable (info) && !info->nointerp)
84e94c90 2021 {
3d4d4302 2022 s = bfd_get_linker_section (dynobj, ".interp");
84e94c90
NC		 2023 BFD_ASSERT (s != NULL);
2024 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2025 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2026 }
2027 }
2028
2029 /* Set up .got offsets for local syms, and space for local dynamic
2030 relocs. */
c72f2fb2 2031 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
84e94c90
NC		 2032 {
2033 bfd_signed_vma *local_got;
2034 bfd_signed_vma *end_local_got;
2035 bfd_size_type locsymcount;
2036 Elf_Internal_Shdr *symtab_hdr;
2037 asection *srel;
2038
2039 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2040 continue;
2041
2042 for (s = ibfd->sections; s != NULL; s = s->next)
2043 {
3bf083ed 2044 struct elf_dyn_relocs *p;
84e94c90 2045
3bf083ed 2046 for (p = ((struct elf_dyn_relocs *)
84e94c90
NC		 2047 elf_section_data (s)->local_dynrel);
2048 p != NULL;
2049 p = p->next)
2050 {
2051 if (! bfd_is_abs_section (p->sec)
2052 && bfd_is_abs_section (p->sec->output_section))
2053 {
2054 /* Input section has been discarded, either because
2055 it is a copy of a linkonce section or due to
2056 linker script /DISCARD/, so we'll be discarding
2057 the relocs too. */
2058 }
2059 else if (p->count != 0)
2060 {
2061 srel = elf_section_data (p->sec)->sreloc;
2062 srel->size += p->count * sizeof (Elf32_External_Rela);
2063 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2064 info->flags |= DF_TEXTREL;
2065 }
2066 }
2067 }
2068
2069 local_got = elf_local_got_refcounts (ibfd);
2070 if (!local_got)
2071 continue;
2072
2073 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2074 locsymcount = symtab_hdr->sh_info;
2075 end_local_got = local_got + locsymcount;
ce558b89
AM		 2076 s = htab->root.sgot;
2077 srel = htab->root.srelgot;
84e94c90
NC		 2078 for (; local_got < end_local_got; ++local_got)
2079 {
2080 if (*local_got > 0)
2081 {
2082 *local_got = s->size;
2083 s->size += 4;
0e1862bb 2084 if (bfd_link_pic (info))
84e94c90
NC		 2085 srel->size += sizeof (Elf32_External_Rela);
2086 }
2087 else
2088 *local_got = (bfd_vma) -1;
2089 }
2090 }
2091
2092 /* Allocate global sym .plt and .got entries, and space for global
2093 sym dynamic relocs. */
2094 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2095
2096 /* We now have determined the sizes of the various dynamic sections.
2097 Allocate memory for them. */
2098 relocs = FALSE;
2099 for (s = dynobj->sections; s != NULL; s = s->next)
2100 {
2101 if ((s->flags & SEC_LINKER_CREATED) == 0)
2102 continue;
2103
ce558b89
AM		 2104 if (s == htab->root.splt
2105 || s == htab->root.sgot
2106 || s == htab->root.sgotplt
84e94c90
NC		 2107 || s == htab->sdynbss)
2108 {
2109 /* Strip this section if we don't need it; see the
2110 comment below. */
2111 }
2112 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2113 {
ce558b89 2114 if (s->size != 0 && s != htab->root.srelplt)
84e94c90
NC		 2115 relocs = TRUE;
2116
2117 /* We use the reloc_count field as a counter if we need
2118 to copy relocs into the output file. */
2119 s->reloc_count = 0;
2120 }
2121 else
2122 /* It's not one of our sections, so don't allocate space. */
2123 continue;
2124
2125 if (s->size == 0)
2126 {
2127 /* If we don't need this section, strip it from the
2128 output file. This is mostly to handle .rela.bss and
2129 .rela.plt. We must create both sections in
2130 create_dynamic_sections, because they must be created
2131 before the linker maps input sections to output
2132 sections. The linker does that before
2133 adjust_dynamic_symbol is called, and it is that
2134 function which decides whether anything needs to go
2135 into these sections. */
2136 s->flags |= SEC_EXCLUDE;
2137 continue;
2138 }
2139
2140 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2141 continue;
2142
2143 /* Allocate memory for the section contents. We use bfd_zalloc
2144 here in case unused entries are not reclaimed before the
2145 section's contents are written out. This should not happen,
2146 but this way if it does, we get a R_LM32_NONE reloc instead
2147 of garbage. */
2148 s->contents = bfd_zalloc (dynobj, s->size);
2149 if (s->contents == NULL)
2150 return FALSE;
2151 }
2152
2153 if (htab->root.dynamic_sections_created)
2154 {
2155 /* Add some entries to the .dynamic section. We fill in the
2156 values later, in lm32_elf_finish_dynamic_sections, but we
2157 must add the entries now so that we get the correct size for
2158 the .dynamic section. The DT_DEBUG entry is filled in by the
2159 dynamic linker and used by the debugger. */
2160#define add_dynamic_entry(TAG, VAL) \
2161 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2162
0e1862bb 2163 if (bfd_link_executable (info))
84e94c90
NC		 2164 {
2165 if (! add_dynamic_entry (DT_DEBUG, 0))
2166 return FALSE;
2167 }
2168
ce558b89 2169 if (htab->root.splt->size != 0)
84e94c90
NC		 2170 {
2171 if (! add_dynamic_entry (DT_PLTGOT, 0)
2172 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2173 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2174 || ! add_dynamic_entry (DT_JMPREL, 0))
2175 return FALSE;
2176 }
2177
2178 if (relocs)
2179 {
2180 if (! add_dynamic_entry (DT_RELA, 0)
2181 || ! add_dynamic_entry (DT_RELASZ, 0)
2182 || ! add_dynamic_entry (DT_RELAENT,
2183 sizeof (Elf32_External_Rela)))
2184 return FALSE;
2185
2186 /* If any dynamic relocs apply to a read-only section,
2187 then we need a DT_TEXTREL entry. */
2188 if ((info->flags & DF_TEXTREL) == 0)
63c1f59d 2189 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
84e94c90
NC		 2190
2191 if ((info->flags & DF_TEXTREL) != 0)
2192 {
2193 if (! add_dynamic_entry (DT_TEXTREL, 0))
2194 return FALSE;
2195 }
2196 }
2197 }
2198#undef add_dynamic_entry
2199
2200 /* Allocate .rofixup section. */
2201 if (IS_FDPIC (output_bfd))
2202 {
2203 struct weak_symbol_list *list_start = NULL, *list_end = NULL;
2204 int rgot_weak_count = 0;
2205 int r32_count = 0;
2206 int rgot_count = 0;
2207 /* Look for deleted sections. */
c72f2fb2 2208 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
84e94c90
NC		 2209 {
2210 for (s = ibfd->sections; s != NULL; s = s->next)
2211 {
2212 if (s->reloc_count)
2213 {
2214 /* Count relocs that need .rofixup entires. */
2215 Elf_Internal_Rela *internal_relocs, *end;
2216 internal_relocs = elf_section_data (s)->relocs;
2217 if (internal_relocs == NULL)
2218 internal_relocs = (_bfd_elf_link_read_relocs (ibfd, s, NULL, NULL, FALSE));
2219 if (internal_relocs != NULL)
2220 {
2221 end = internal_relocs + s->reloc_count;
2222 while (internal_relocs < end)
2223 {
2224 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2225 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
2226 unsigned long r_symndx;
2227 struct elf_link_hash_entry *h;
2228
2229 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2230 sym_hashes = elf_sym_hashes (ibfd);
2231 r_symndx = ELF32_R_SYM (internal_relocs->r_info);
2232 h = NULL;
2233 if (r_symndx < symtab_hdr->sh_info)
2234 {
2235 }
2236 else
2237 {
2238 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2239 while (h->root.type == bfd_link_hash_indirect
2240 || h->root.type == bfd_link_hash_warning)
2241 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2242 }
2243
2244 /* Don't generate entries for weak symbols. */
2245 if (!h || (h && h->root.type != bfd_link_hash_undefweak))
2246 {
dbaa2011 2247 if (!discarded_section (s) && !((bfd_get_section_flags (ibfd, s) & SEC_ALLOC) == 0))
84e94c90
NC		 2248 {
2249 switch (ELF32_R_TYPE (internal_relocs->r_info))
2250 {
2251 case R_LM32_32:
2252 r32_count++;
2253 break;
2254 case R_LM32_16_GOT:
2255 rgot_count++;
2256 break;
2257 }
2258 }
2259 }
2260 else
2261 {
2262 struct weak_symbol_list *current, *new_entry;
2263 /* Is this symbol already in the list? */
2264 for (current = list_start; current; current = current->next)
2265 {
2266 if (!strcmp (current->name, h->root.root.string))
2267 break;
2268 }
dbaa2011 2269 if (!current && !discarded_section (s) && (bfd_get_section_flags (ibfd, s) & SEC_ALLOC))
84e94c90
NC		 2270 {
2271 /* Will this have an entry in the GOT. */
2272 if (ELF32_R_TYPE (internal_relocs->r_info) == R_LM32_16_GOT)
2273 {
2274 /* Create a new entry. */
2275 new_entry = malloc (sizeof (struct weak_symbol_list));
2276 if (!new_entry)
2277 return FALSE;
2278 new_entry->name = h->root.root.string;
2279 new_entry->next = NULL;
2280 /* Add to list */
2281 if (list_start == NULL)
2282 {
2283 list_start = new_entry;
2284 list_end = new_entry;
2285 }
2286 else
2287 {
2288 list_end->next = new_entry;
2289 list_end = new_entry;
2290 }
2291 /* Increase count of undefined weak symbols in the got. */
2292 rgot_weak_count++;
2293 }
2294 }
2295 }
2296 internal_relocs++;
2297 }
2298 }
2299 else
2300 return FALSE;
2301 }
2302 }
2303 }
2304 /* Free list. */
2305 while (list_start)
2306 {
2307 list_end = list_start->next;
2308 free (list_start);
2309 list_start = list_end;
2310 }
2311
2312 /* Size sections. */
ce558b89
AM		 2313 lm32fdpic_fixup32_section (info)->size
2314 = (r32_count + (htab->root.sgot->size / 4) - rgot_weak_count + 1) * 4;
84e94c90
NC		 2315 if (lm32fdpic_fixup32_section (info)->size == 0)
2316 lm32fdpic_fixup32_section (info)->flags |= SEC_EXCLUDE;
2317 else
2318 {
2319 lm32fdpic_fixup32_section (info)->contents =
2320 bfd_zalloc (dynobj, lm32fdpic_fixup32_section (info)->size);
2321 if (lm32fdpic_fixup32_section (info)->contents == NULL)
2322 return FALSE;
2323 }
2324 }
2325
2326 return TRUE;
2327}
2328
2329/* Create dynamic sections when linking against a dynamic object. */
2330
2331static bfd_boolean
2332lm32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2333{
2334 struct elf_lm32_link_hash_table *htab;
2335 flagword flags, pltflags;
2336 asection *s;
2337 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2338 int ptralign = 2; /* 32bit */
2339
2340 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 2341 if (htab == NULL)
2342 return FALSE;
84e94c90
NC		 2343
2344 /* Make sure we have a GOT - For the case where we have a dynamic object
2345 but none of the relocs in check_relocs */
ce558b89 2346 if (!_bfd_elf_create_got_section (abfd, info))
84e94c90
NC		 2347 return FALSE;
2348 if (IS_FDPIC (abfd) && (htab->sfixup32 == NULL))
2349 {
2350 if (! create_rofixup_section (abfd, info))
2351 return FALSE;
2352 }
2353
2354 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2355 .rel[a].bss sections. */
2356 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2357 | SEC_LINKER_CREATED);
2358
2359 pltflags = flags;
2360 pltflags |= SEC_CODE;
2361 if (bed->plt_not_loaded)
2362 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2363 if (bed->plt_readonly)
2364 pltflags |= SEC_READONLY;
2365
3d4d4302 2366 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
ce558b89 2367 htab->root.splt = s;
84e94c90
NC		 2368 if (s == NULL
2369 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
2370 return FALSE;
2371
2372 if (bed->want_plt_sym)
2373 {
2374 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2375 .plt section. */
2376 struct bfd_link_hash_entry *bh = NULL;
2377 struct elf_link_hash_entry *h;
2378
2379 if (! (_bfd_generic_link_add_one_symbol
2380 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
2381 (bfd_vma) 0, NULL, FALSE,
2382 get_elf_backend_data (abfd)->collect, &bh)))
2383 return FALSE;
2384 h = (struct elf_link_hash_entry *) bh;
2385 h->def_regular = 1;
2386 h->type = STT_OBJECT;
2387 htab->root.hplt = h;
2388
0e1862bb 2389 if (bfd_link_pic (info)
84e94c90
NC		 2390 && ! bfd_elf_link_record_dynamic_symbol (info, h))
2391 return FALSE;
2392 }
2393
3d4d4302
AM		 2394 s = bfd_make_section_anyway_with_flags (abfd,
2395 bed->default_use_rela_p
2396 ? ".rela.plt" : ".rel.plt",
2397 flags | SEC_READONLY);
ce558b89 2398 htab->root.srelplt = s;
84e94c90
NC		 2399 if (s == NULL
2400 || ! bfd_set_section_alignment (abfd, s, ptralign))
2401 return FALSE;
2402
ce558b89
AM		 2403 if (htab->root.sgot == NULL
2404 && !_bfd_elf_create_got_section (abfd, info))
84e94c90
NC		 2405 return FALSE;
2406
84e94c90
NC		 2407 if (bed->want_dynbss)
2408 {
2409 /* The .dynbss section is a place to put symbols which are defined
2410 by dynamic objects, are referenced by regular objects, and are
2411 not functions. We must allocate space for them in the process
2412 image and use a R_*_COPY reloc to tell the dynamic linker to
2413 initialize them at run time. The linker script puts the .dynbss
2414 section into the .bss section of the final image. */
3d4d4302
AM		 2415 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2416 SEC_ALLOC | SEC_LINKER_CREATED);
84e94c90
NC		 2417 htab->sdynbss = s;
2418 if (s == NULL)
2419 return FALSE;
2420 /* The .rel[a].bss section holds copy relocs. This section is not
2421 normally needed. We need to create it here, though, so that the
2422 linker will map it to an output section. We can't just create it
2423 only if we need it, because we will not know whether we need it
2424 until we have seen all the input files, and the first time the
2425 main linker code calls BFD after examining all the input files
2426 (size_dynamic_sections) the input sections have already been
2427 mapped to the output sections. If the section turns out not to
2428 be needed, we can discard it later. We will never need this
2429 section when generating a shared object, since they do not use
2430 copy relocs. */
0e1862bb 2431 if (! bfd_link_pic (info))
84e94c90 2432 {
3d4d4302
AM		 2433 s = bfd_make_section_anyway_with_flags (abfd,
2434 (bed->default_use_rela_p
2435 ? ".rela.bss" : ".rel.bss"),
2436 flags | SEC_READONLY);
84e94c90
NC		 2437 htab->srelbss = s;
2438 if (s == NULL
2439 || ! bfd_set_section_alignment (abfd, s, ptralign))
2440 return FALSE;
2441 }
2442 }
2443
2444 return TRUE;
2445}
2446
2447/* Copy the extra info we tack onto an elf_link_hash_entry. */
2448
2449static void
2450lm32_elf_copy_indirect_symbol (struct bfd_link_info *info,
2451 struct elf_link_hash_entry *dir,
2452 struct elf_link_hash_entry *ind)
2453{
2454 struct elf_lm32_link_hash_entry * edir;
2455 struct elf_lm32_link_hash_entry * eind;
2456
2457 edir = (struct elf_lm32_link_hash_entry *) dir;
2458 eind = (struct elf_lm32_link_hash_entry *) ind;
2459
2460 if (eind->dyn_relocs != NULL)
2461 {
2462 if (edir->dyn_relocs != NULL)
2463 {
3bf083ed
AM		 2464 struct elf_dyn_relocs **pp;
2465 struct elf_dyn_relocs *p;
84e94c90
NC		 2466
2467 /* Add reloc counts against the indirect sym to the direct sym
2468 list. Merge any entries against the same section. */
2469 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2470 {
3bf083ed 2471 struct elf_dyn_relocs *q;
84e94c90
NC		 2472
2473 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2474 if (q->sec == p->sec)
2475 {
2476 q->pc_count += p->pc_count;
2477 q->count += p->count;
2478 *pp = p->next;
2479 break;
2480 }
2481 if (q == NULL)
2482 pp = &p->next;
2483 }
2484 *pp = edir->dyn_relocs;
2485 }
2486
2487 edir->dyn_relocs = eind->dyn_relocs;
2488 eind->dyn_relocs = NULL;
2489 }
2490
2491 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2492}
2493
2494static bfd_boolean
04c3a755 2495lm32_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
84e94c90 2496{
0e1862bb 2497 if (!bfd_link_relocatable (info))
84e94c90 2498 {
04c3a755
NS		 2499 if (!bfd_elf_stack_segment_size (output_bfd, info,
2500 "__stacksize", DEFAULT_STACK_SIZE))
2501 return FALSE;
84e94c90 2502
84e94c90 2503 asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
84e94c90 2504 if (sec)
04c3a755 2505 sec->size = info->stacksize >= 0 ? info->stacksize : 0;
84e94c90
NC		 2506 }
2507
2508 return TRUE;
2509}
2510
84e94c90
NC		 2511static bfd_boolean
2512lm32_elf_fdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2513{
2514 unsigned i;
2515
2516 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2517 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2518 return TRUE;
2519
e2349352 2520 if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
84e94c90
NC		 2521 return FALSE;
2522
2523 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
2524 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
2525 return TRUE;
2526
2527 /* Copy the stack size. */
2528 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
2529 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
2530 {
2531 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
2532
2533 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
2534 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
2535 {
2536 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
2537
2538 /* Rewrite the phdrs, since we're only called after they were first written. */
2539 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
2540 ->s->sizeof_ehdr, SEEK_SET) != 0
2541 || get_elf_backend_data (obfd)->s->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
2542 elf_elfheader (obfd)->e_phnum) != 0)
2543 return FALSE;
2544 break;
2545 }
2546
2547 break;
2548 }
2549
2550 return TRUE;
2551}
2552
2553
2554#define ELF_ARCH bfd_arch_lm32
ae95ffa6 2555#define ELF_TARGET_ID LM32_ELF_DATA
84e94c90
NC		 2556#define ELF_MACHINE_CODE EM_LATTICEMICO32
2557#define ELF_MAXPAGESIZE 0x1000
2558
6d00b590 2559#define TARGET_BIG_SYM lm32_elf32_vec
84e94c90
NC		 2560#define TARGET_BIG_NAME "elf32-lm32"
2561
2562#define bfd_elf32_bfd_reloc_type_lookup lm32_reloc_type_lookup
2563#define bfd_elf32_bfd_reloc_name_lookup lm32_reloc_name_lookup
2564#define elf_info_to_howto lm32_info_to_howto_rela
2565#define elf_info_to_howto_rel 0
2566#define elf_backend_rela_normal 1
2567#define elf_backend_object_p lm32_elf_object_p
2568#define elf_backend_final_write_processing lm32_elf_final_write_processing
04c3a755 2569#define elf_backend_stack_align 8
84e94c90
NC		 2570#define elf_backend_can_gc_sections 1
2571#define elf_backend_can_refcount 1
2572#define elf_backend_gc_mark_hook lm32_elf_gc_mark_hook
84e94c90
NC		 2573#define elf_backend_plt_readonly 1
2574#define elf_backend_want_got_plt 1
2575#define elf_backend_want_plt_sym 0
2576#define elf_backend_got_header_size 12
64f52338 2577#define elf_backend_dtrel_excludes_plt 1
84e94c90
NC		 2578#define bfd_elf32_bfd_link_hash_table_create lm32_elf_link_hash_table_create
2579#define elf_backend_check_relocs lm32_elf_check_relocs
2580#define elf_backend_reloc_type_class lm32_elf_reloc_type_class
2581#define elf_backend_copy_indirect_symbol lm32_elf_copy_indirect_symbol
2582#define elf_backend_size_dynamic_sections lm32_elf_size_dynamic_sections
2583#define elf_backend_omit_section_dynsym ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
2584#define elf_backend_create_dynamic_sections lm32_elf_create_dynamic_sections
2585#define elf_backend_finish_dynamic_sections lm32_elf_finish_dynamic_sections
2586#define elf_backend_adjust_dynamic_symbol lm32_elf_adjust_dynamic_symbol
2587#define elf_backend_finish_dynamic_symbol lm32_elf_finish_dynamic_symbol
2588#define elf_backend_relocate_section lm32_elf_relocate_section
2589
2590#include "elf32-target.h"
2591
2592#undef ELF_MAXPAGESIZE
2593#define ELF_MAXPAGESIZE 0x4000
2594
2595
2596#undef TARGET_BIG_SYM
6d00b590 2597#define TARGET_BIG_SYM lm32_elf32_fdpic_vec
84e94c90
NC		 2598#undef TARGET_BIG_NAME
2599#define TARGET_BIG_NAME "elf32-lm32fdpic"
2600#undef elf32_bed
2601#define elf32_bed elf32_lm32fdpic_bed
2602
2603#undef elf_backend_always_size_sections
2604#define elf_backend_always_size_sections lm32_elf_always_size_sections
84e94c90
NC		 2605#undef bfd_elf32_bfd_copy_private_bfd_data
2606#define bfd_elf32_bfd_copy_private_bfd_data lm32_elf_fdpic_copy_private_bfd_data
2607
2608#include "elf32-target.h"
A mirror of the official binutils-gdb repository