BFD messages
[deliverable/binutils-gdb.git] / bfd / elf32-lm32.c
CommitLineData
84e94c90 1/* Lattice Mico32-specific support for 32-bit ELF
219d1afa 2 Copyright (C) 2008-2018 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 *)
07d6d2b8
AM
116 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
117 table, string));
84e94c90
NC
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,
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NC
143 sizeof (struct elf_lm32_link_hash_entry),
144 LM32_ELF_DATA))
84e94c90
NC
145 {
146 free (ret);
147 return NULL;
148 }
149
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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
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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))
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NC
200 return FALSE;
201
202 return TRUE;
203}
204
205static reloc_howto_type lm32_elf_howto_table [] =
206{
207 /* This reloc does nothing. */
07d6d2b8
AM
208 HOWTO (R_LM32_NONE, /* type */
209 0, /* rightshift */
210 3, /* size (0 = byte, 1 = short, 2 = long) */
211 0, /* bitsize */
212 FALSE, /* pc_relative */
213 0, /* bitpos */
214 complain_overflow_dont, /* complain_on_overflow */
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 */
84e94c90
NC
221
222 /* An 8 bit absolute relocation. */
07d6d2b8
AM
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 */
84e94c90
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236
237 /* A 16 bit absolute relocation. */
07d6d2b8
AM
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 */
84e94c90
NC
251
252 /* A 32 bit absolute relocation. */
07d6d2b8
AM
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 */
84e94c90
NC
336
337 /* GNU extension to record C++ vtable hierarchy. */
07d6d2b8
AM
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 */
84e94c90
NC
351
352 /* GNU extension to record C++ vtable member usage. */
07d6d2b8
AM
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 */
84e94c90
NC
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{
07d6d2b8
AM
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 },
84e94c90
NC
489 { BFD_RELOC_LM32_GOTOFF_HI16, R_LM32_GOTOFF_HI16 },
490 { BFD_RELOC_LM32_GOTOFF_LO16, R_LM32_GOTOFF_LO16 },
07d6d2b8
AM
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 },
84e94c90
NC
495};
496
497static reloc_howto_type *
498lm32_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
07d6d2b8 499 bfd_reloc_code_real_type code)
84e94c90
NC
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
0aa13fee 529lm32_info_to_howto_rela (bfd *abfd,
07d6d2b8
AM
530 arelent *cache_ptr,
531 Elf_Internal_Rela *dst)
84e94c90
NC
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 */
0aa13fee
AM
539 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
540 abfd, r_type);
5860e3f8
NC
541 r_type = 0;
542 }
84e94c90
NC
543 cache_ptr->howto = &lm32_elf_howto_table[r_type];
544}
545
546/* Set the right machine number for an Lattice Mico32 ELF file. */
547
548static bfd_boolean
549lm32_elf_object_p (bfd *abfd)
550{
551 return bfd_default_set_arch_mach (abfd, bfd_arch_lm32, bfd_mach_lm32);
552}
553
554/* Set machine type flags just before file is written out. */
555
556static void
557lm32_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
558{
559 elf_elfheader (abfd)->e_machine = EM_LATTICEMICO32;
560 elf_elfheader (abfd)->e_flags &=~ EF_LM32_MACH;
561 switch (bfd_get_mach (abfd))
562 {
563 case bfd_mach_lm32:
07d6d2b8
AM
564 elf_elfheader (abfd)->e_flags |= E_LM32_MACH;
565 break;
84e94c90 566 default:
07d6d2b8 567 abort ();
84e94c90
NC
568 }
569}
570
571/* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
572 dangerous relocation. */
573
574static bfd_boolean
575lm32_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
576{
577 unsigned int count;
578 asymbol **sym;
579 unsigned int i;
580
581 /* If we've already figured out what GP will be, just return it. */
582 *pgp = _bfd_get_gp_value (output_bfd);
583 if (*pgp)
584 return TRUE;
585
586 count = bfd_get_symcount (output_bfd);
587 sym = bfd_get_outsymbols (output_bfd);
588
589 /* The linker script will have created a symbol named `_gp' with the
590 appropriate value. */
591 if (sym == NULL)
592 i = count;
593 else
594 {
595 for (i = 0; i < count; i++, sym++)
596 {
597 const char *name;
598
599 name = bfd_asymbol_name (*sym);
600 if (*name == '_' && strcmp (name, "_gp") == 0)
601 {
602 *pgp = bfd_asymbol_value (*sym);
603 _bfd_set_gp_value (output_bfd, *pgp);
604 break;
605 }
606 }
607 }
608
609 if (i >= count)
610 {
611 /* Only get the error once. */
612 *pgp = 4;
613 _bfd_set_gp_value (output_bfd, *pgp);
614 return FALSE;
615 }
616
617 return TRUE;
618}
619
620/* We have to figure out the gp value, so that we can adjust the
621 symbol value correctly. We look up the symbol _gp in the output
622 BFD. If we can't find it, we're stuck. We cache it in the ELF
623 target data. We don't need to adjust the symbol value for an
624 external symbol if we are producing relocatable output. */
625
626static bfd_reloc_status_type
627lm32_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
07d6d2b8 628 char **error_message, bfd_vma *pgp)
84e94c90
NC
629{
630 if (bfd_is_und_section (symbol->section) && !relocatable)
631 {
632 *pgp = 0;
633 return bfd_reloc_undefined;
634 }
635
636 *pgp = _bfd_get_gp_value (output_bfd);
637 if (*pgp == 0 && (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0))
638 {
639 if (relocatable)
640 {
641 /* Make up a value. */
642 *pgp = symbol->section->output_section->vma + 0x4000;
643 _bfd_set_gp_value (output_bfd, *pgp);
644 }
645 else if (!lm32_elf_assign_gp (output_bfd, pgp))
646 {
647 *error_message =
648 (char *)
649 _("global pointer relative relocation when _gp not defined");
650 return bfd_reloc_dangerous;
651 }
652 }
653
654 return bfd_reloc_ok;
655}
656
657static bfd_reloc_status_type
658lm32_elf_do_gprel_relocate (bfd *abfd,
659 reloc_howto_type *howto,
660 asection *input_section ATTRIBUTE_UNUSED,
661 bfd_byte *data,
662 bfd_vma offset,
663 bfd_vma symbol_value,
664 bfd_vma addend)
665{
666 return _bfd_final_link_relocate (howto, abfd, input_section,
667 data, offset, symbol_value, addend);
668}
669
670static bfd_reloc_status_type
671lm32_elf_gprel_reloc (bfd *abfd,
672 arelent *reloc_entry,
673 asymbol *symbol,
674 void *data,
675 asection *input_section,
676 bfd *output_bfd,
677 char **msg)
678{
679 bfd_vma relocation;
680 bfd_vma gp;
681 bfd_reloc_status_type r;
682
683 if (output_bfd != (bfd *) NULL
684 && (symbol->flags & BSF_SECTION_SYM) == 0
685 && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0))
686 {
687 reloc_entry->address += input_section->output_offset;
688 return bfd_reloc_ok;
689 }
690
691 if (output_bfd != NULL)
692 return bfd_reloc_ok;
693
694 relocation = symbol->value
695 + symbol->section->output_section->vma + symbol->section->output_offset;
696
697 if ((r =
698 lm32_elf_final_gp (abfd, symbol, FALSE, msg, &gp)) == bfd_reloc_ok)
699 {
700 relocation = relocation + reloc_entry->addend - gp;
701 reloc_entry->addend = 0;
702 if ((signed) relocation < -32768 || (signed) relocation > 32767)
703 {
704 *msg = _("global pointer relative address out of range");
705 r = bfd_reloc_outofrange;
706 }
707 else
708 {
709 r = lm32_elf_do_gprel_relocate (abfd, reloc_entry->howto,
710 input_section,
711 data, reloc_entry->address,
712 relocation, reloc_entry->addend);
713 }
714 }
715
716 return r;
717}
718
719/* Find the segment number in which OSEC, and output section, is
720 located. */
721
722static unsigned
723_lm32fdpic_osec_to_segment (bfd *output_bfd, asection *osec)
724{
725 struct elf_segment_map *m;
726 Elf_Internal_Phdr *p;
727
728 /* Find the segment that contains the output_section. */
12bd6957 729 for (m = elf_seg_map (output_bfd), p = elf_tdata (output_bfd)->phdr;
84e94c90
NC
730 m != NULL;
731 m = m->next, p++)
732 {
733 int i;
734
735 for (i = m->count - 1; i >= 0; i--)
736 if (m->sections[i] == osec)
737 break;
738
739 if (i >= 0)
740 break;
741 }
742
743 return p - elf_tdata (output_bfd)->phdr;
744}
745
746/* Determine if an output section is read-only. */
747
748inline static bfd_boolean
749_lm32fdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
750{
751 unsigned seg = _lm32fdpic_osec_to_segment (output_bfd, osec);
752
753 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
754}
755
756/* Relocate a section */
757
758static bfd_boolean
759lm32_elf_relocate_section (bfd *output_bfd,
07d6d2b8
AM
760 struct bfd_link_info *info,
761 bfd *input_bfd,
762 asection *input_section,
763 bfd_byte *contents,
764 Elf_Internal_Rela *relocs,
765 Elf_Internal_Sym *local_syms,
766 asection **local_sections)
84e94c90
NC
767{
768 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
769 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
770 Elf_Internal_Rela *rel, *relend;
84e94c90 771 struct elf_lm32_link_hash_table *htab = lm32_elf_hash_table (info);
84e94c90 772 bfd_vma *local_got_offsets;
c7e2358a 773 asection *sgot;
84e94c90 774
4dfe6ac6
NC
775 if (htab == NULL)
776 return FALSE;
777
84e94c90
NC
778 local_got_offsets = elf_local_got_offsets (input_bfd);
779
ce558b89 780 sgot = htab->root.sgot;
84e94c90
NC
781
782 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
783 sym_hashes = elf_sym_hashes (input_bfd);
784
785 rel = relocs;
786 relend = relocs + input_section->reloc_count;
787 for (; rel < relend; rel++)
788 {
789 reloc_howto_type *howto;
790 unsigned int r_type;
791 unsigned long r_symndx;
792 Elf_Internal_Sym *sym;
793 asection *sec;
794 struct elf_link_hash_entry *h;
795 bfd_vma relocation;
796 bfd_vma gp;
797 bfd_reloc_status_type r;
798 const char *name = NULL;
84e94c90
NC
799
800 r_symndx = ELF32_R_SYM (rel->r_info);
801 r_type = ELF32_R_TYPE (rel->r_info);
802
803 if (r_type == R_LM32_GNU_VTENTRY
07d6d2b8
AM
804 || r_type == R_LM32_GNU_VTINHERIT )
805 continue;
84e94c90
NC
806
807 h = NULL;
808 sym = NULL;
809 sec = NULL;
810
811 howto = lm32_elf_howto_table + r_type;
812
813 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8
AM
814 {
815 /* It's a local symbol. */
816 sym = local_syms + r_symndx;
817 sec = local_sections[r_symndx];
818 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
819 name = bfd_elf_string_from_elf_section
84e94c90
NC
820 (input_bfd, symtab_hdr->sh_link, sym->st_name);
821 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
07d6d2b8 822 }
84e94c90 823 else
07d6d2b8
AM
824 {
825 /* It's a global symbol. */
826 bfd_boolean unresolved_reloc;
62d887d4 827 bfd_boolean warned, ignored;
84e94c90
NC
828
829 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
830 r_symndx, symtab_hdr, sym_hashes,
831 h, sec, relocation,
62d887d4 832 unresolved_reloc, warned, ignored);
84e94c90 833 name = h->root.root.string;
07d6d2b8 834 }
84e94c90 835
dbaa2011 836 if (sec != NULL && discarded_section (sec))
e4067dbb 837 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 838 rel, 1, relend, howto, 0, contents);
84e94c90 839
0e1862bb 840 if (bfd_link_relocatable (info))
07d6d2b8 841 {
84e94c90
NC
842 /* This is a relocatable link. We don't have to change
843 anything, unless the reloc is against a section symbol,
844 in which case we have to adjust according to where the
845 section symbol winds up in the output section. */
846 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
847 continue;
848
849 /* If partial_inplace, we need to store any additional addend
850 back in the section. */
851 if (! howto->partial_inplace)
852 continue;
853
07d6d2b8 854 /* Shouldn't reach here. */
84e94c90
NC
855 abort ();
856 r = bfd_reloc_ok;
07d6d2b8 857 }
84e94c90 858 else
07d6d2b8
AM
859 {
860 switch (howto->type)
861 {
862 case R_LM32_GPREL16:
863 if (!lm32_elf_assign_gp (output_bfd, &gp))
864 r = bfd_reloc_dangerous;
865 else
866 {
867 relocation = relocation + rel->r_addend - gp;
868 rel->r_addend = 0;
869 if ((signed)relocation < -32768 || (signed)relocation > 32767)
870 r = bfd_reloc_outofrange;
871 else
872 {
873 r = _bfd_final_link_relocate (howto, input_bfd,
874 input_section, contents,
875 rel->r_offset, relocation,
876 rel->r_addend);
877 }
878 }
879 break;
880 case R_LM32_16_GOT:
881 /* Relocation is to the entry for this symbol in the global
882 offset table. */
883 BFD_ASSERT (sgot != NULL);
884 if (h != NULL)
885 {
886 bfd_boolean dyn;
887 bfd_vma off;
888
889 off = h->got.offset;
890 BFD_ASSERT (off != (bfd_vma) -1);
891
892 dyn = htab->root.dynamic_sections_created;
893 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
0e1862bb
L
894 bfd_link_pic (info),
895 h)
07d6d2b8
AM
896 || (bfd_link_pic (info)
897 && (info->symbolic
898 || h->dynindx == -1
899 || h->forced_local)
900 && h->def_regular))
901 {
902 /* This is actually a static link, or it is a
903 -Bsymbolic link and the symbol is defined
904 locally, or the symbol was forced to be local
905 because of a version file. We must initialize
906 this entry in the global offset table. Since the
907 offset must always be a multiple of 4, we use the
908 least significant bit to record whether we have
909 initialized it already.
910
911 When doing a dynamic link, we create a .rela.got
912 relocation entry to initialize the value. This
913 is done in the finish_dynamic_symbol routine. */
914 if ((off & 1) != 0)
915 off &= ~1;
916 else
917 {
918 /* Write entry in GOT */
919 bfd_put_32 (output_bfd, relocation,
920 sgot->contents + off);
921 /* Create entry in .rofixup pointing to GOT entry. */
922 if (IS_FDPIC (output_bfd) && h->root.type != bfd_link_hash_undefweak)
923 {
924 _lm32fdpic_add_rofixup (output_bfd,
925 lm32fdpic_fixup32_section
926 (info),
927 sgot->output_section->vma
928 + sgot->output_offset
929 + off);
930 }
931 /* Mark GOT entry as having been written. */
932 h->got.offset |= 1;
933 }
934 }
935
936 relocation = sgot->output_offset + off;
937 }
938 else
939 {
940 bfd_vma off;
941 bfd_byte *loc;
942
943 BFD_ASSERT (local_got_offsets != NULL
944 && local_got_offsets[r_symndx] != (bfd_vma) -1);
945
946 /* Get offset into GOT table. */
947 off = local_got_offsets[r_symndx];
948
949 /* The offset must always be a multiple of 4. We use
950 the least significant bit to record whether we have
951 already processed this entry. */
952 if ((off & 1) != 0)
953 off &= ~1;
954 else
955 {
956 /* Write entry in GOT. */
957 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
958 /* Create entry in .rofixup pointing to GOT entry. */
959 if (IS_FDPIC (output_bfd))
960 {
961 _lm32fdpic_add_rofixup (output_bfd,
962 lm32fdpic_fixup32_section
963 (info),
964 sgot->output_section->vma
965 + sgot->output_offset
966 + off);
967 }
968
969 if (bfd_link_pic (info))
970 {
971 asection *srelgot;
972 Elf_Internal_Rela outrel;
973
974 /* We need to generate a R_LM32_RELATIVE reloc
975 for the dynamic linker. */
976 srelgot = htab->root.srelgot;
977 BFD_ASSERT (srelgot != NULL);
978
979 outrel.r_offset = (sgot->output_section->vma
980 + sgot->output_offset
981 + off);
982 outrel.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
983 outrel.r_addend = relocation;
984 loc = srelgot->contents;
985 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
986 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
987 ++srelgot->reloc_count;
988 }
989
990 local_got_offsets[r_symndx] |= 1;
991 }
992
993
994 relocation = sgot->output_offset + off;
995 }
996
997 /* Addend should be zero. */
998 if (rel->r_addend != 0)
4eca0228 999 _bfd_error_handler (_("internal error: addend should be zero for R_LM32_16_GOT"));
84e94c90 1000
07d6d2b8
AM
1001 r = _bfd_final_link_relocate (howto,
1002 input_bfd,
1003 input_section,
1004 contents,
1005 rel->r_offset,
1006 relocation,
1007 rel->r_addend);
1008 break;
1009
1010 case R_LM32_GOTOFF_LO16:
1011 case R_LM32_GOTOFF_HI16:
1012 /* Relocation is offset from GOT. */
84e94c90
NC
1013 BFD_ASSERT (sgot != NULL);
1014 relocation -= sgot->output_section->vma;
1015 /* Account for sign-extension. */
07d6d2b8
AM
1016 if ((r_type == R_LM32_GOTOFF_HI16)
1017 && ((relocation + rel->r_addend) & 0x8000))
1018 rel->r_addend += 0x10000;
1019 r = _bfd_final_link_relocate (howto,
1020 input_bfd,
1021 input_section,
1022 contents,
1023 rel->r_offset,
1024 relocation,
1025 rel->r_addend);
1026 break;
1027
1028 case R_LM32_32:
1029 if (IS_FDPIC (output_bfd))
1030 {
1031 if ((!h) || (h && h->root.type != bfd_link_hash_undefweak))
1032 {
1033 /* Only create .rofixup entries for relocs in loadable sections. */
1034 if ((bfd_get_section_flags (output_bfd, input_section->output_section)
1035 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
1036
1037 {
1038 /* Check address to be modified is writable. */
1039 if (_lm32fdpic_osec_readonly_p (output_bfd,
1040 input_section
1041 ->output_section))
1042 {
1043 info->callbacks->warning
1044 (info,
1045 _("cannot emit dynamic relocations in read-only section"),
1046 name, input_bfd, input_section, rel->r_offset);
1047 return FALSE;
1048 }
1049 /* Create entry in .rofixup section. */
1050 _lm32fdpic_add_rofixup (output_bfd,
1051 lm32fdpic_fixup32_section (info),
1052 input_section->output_section->vma
1053 + input_section->output_offset
1054 + rel->r_offset);
1055 }
1056 }
1057 }
1058 /* Fall through. */
1059
1060 default:
1061 r = _bfd_final_link_relocate (howto,
1062 input_bfd,
1063 input_section,
1064 contents,
1065 rel->r_offset,
1066 relocation,
1067 rel->r_addend);
1068 break;
1069 }
1070 }
84e94c90
NC
1071
1072 if (r != bfd_reloc_ok)
07d6d2b8
AM
1073 {
1074 const char *msg = NULL;
1075 arelent bfd_reloc;
1076
1077 lm32_info_to_howto_rela (input_bfd, &bfd_reloc, rel);
1078 howto = bfd_reloc.howto;
1079
1080 if (h != NULL)
1081 name = h->root.root.string;
1082 else
1083 {
1084 name = (bfd_elf_string_from_elf_section
1085 (input_bfd, symtab_hdr->sh_link, sym->st_name));
1086 if (name == NULL || *name == '\0')
1087 name = bfd_section_name (input_bfd, sec);
1088 }
1089
1090 switch (r)
1091 {
84e94c90
NC
1092 case bfd_reloc_overflow:
1093 if ((h != NULL)
07d6d2b8
AM
1094 && (h->root.type == bfd_link_hash_undefweak))
1095 break;
1a72702b
AM
1096 (*info->callbacks->reloc_overflow)
1097 (info, (h ? &h->root : NULL), name, howto->name,
1098 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
84e94c90
NC
1099 break;
1100
07d6d2b8 1101 case bfd_reloc_undefined:
1a72702b
AM
1102 (*info->callbacks->undefined_symbol)
1103 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
07d6d2b8 1104 break;
84e94c90 1105
07d6d2b8
AM
1106 case bfd_reloc_outofrange:
1107 msg = _("internal error: out of range error");
1108 goto common_error;
84e94c90 1109
07d6d2b8
AM
1110 case bfd_reloc_notsupported:
1111 msg = _("internal error: unsupported relocation error");
1112 goto common_error;
84e94c90 1113
07d6d2b8
AM
1114 case bfd_reloc_dangerous:
1115 msg = _("internal error: dangerous error");
1116 goto common_error;
84e94c90 1117
07d6d2b8
AM
1118 default:
1119 msg = _("internal error: unknown error");
1120 /* fall through */
84e94c90 1121
07d6d2b8 1122 common_error:
1a72702b
AM
1123 (*info->callbacks->warning) (info, msg, name, input_bfd,
1124 input_section, rel->r_offset);
07d6d2b8
AM
1125 break;
1126 }
1127 }
84e94c90
NC
1128 }
1129
1130 return TRUE;
1131}
1132
1133static asection *
1134lm32_elf_gc_mark_hook (asection *sec,
07d6d2b8
AM
1135 struct bfd_link_info *info,
1136 Elf_Internal_Rela *rel,
1137 struct elf_link_hash_entry *h,
1138 Elf_Internal_Sym *sym)
84e94c90
NC
1139{
1140 if (h != NULL)
1141 switch (ELF32_R_TYPE (rel->r_info))
1142 {
1143 case R_LM32_GNU_VTINHERIT:
1144 case R_LM32_GNU_VTENTRY:
1145 return NULL;
1146 }
1147
1148 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1149}
1150
84e94c90
NC
1151/* Look through the relocs for a section during the first phase. */
1152
1153static bfd_boolean
1154lm32_elf_check_relocs (bfd *abfd,
07d6d2b8
AM
1155 struct bfd_link_info *info,
1156 asection *sec,
1157 const Elf_Internal_Rela *relocs)
84e94c90
NC
1158{
1159 Elf_Internal_Shdr *symtab_hdr;
1160 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
1161 const Elf_Internal_Rela *rel;
1162 const Elf_Internal_Rela *rel_end;
1163 struct elf_lm32_link_hash_table *htab;
1164 bfd *dynobj;
84e94c90 1165
0e1862bb 1166 if (bfd_link_relocatable (info))
84e94c90
NC
1167 return TRUE;
1168
65281396
AM
1169 /* Don't do anything special with non-loaded, non-alloced sections.
1170 In particular, any relocs in such sections should not affect GOT
1171 and PLT reference counting (ie. we don't allow them to create GOT
1172 or PLT entries), there's no possibility or desire to optimize TLS
1173 relocs, and there's not much point in propagating relocs to shared
1174 libs that the dynamic linker won't relocate. */
1175 if ((sec->flags & SEC_ALLOC) == 0)
1176 return TRUE;
1177
84e94c90
NC
1178 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1179 sym_hashes = elf_sym_hashes (abfd);
1180 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
1181 if (!elf_bad_symtab (abfd))
1182 sym_hashes_end -= symtab_hdr->sh_info;
1183
1184 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC
1185 if (htab == NULL)
1186 return FALSE;
1187
84e94c90 1188 dynobj = htab->root.dynobj;
84e94c90
NC
1189
1190 rel_end = relocs + sec->reloc_count;
1191 for (rel = relocs; rel < rel_end; rel++)
1192 {
1193 int r_type;
1194 struct elf_link_hash_entry *h;
1195 unsigned long r_symndx;
1196
1197 r_symndx = ELF32_R_SYM (rel->r_info);
1198 r_type = ELF32_R_TYPE (rel->r_info);
1199 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8 1200 h = NULL;
84e94c90
NC
1201 else
1202 {
1203 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1204 while (h->root.type == bfd_link_hash_indirect
1205 || h->root.type == bfd_link_hash_warning)
1206 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1207 }
1208
1209 /* Some relocs require a global offset table. */
ce558b89 1210 if (htab->root.sgot == NULL)
07d6d2b8
AM
1211 {
1212 switch (r_type)
1213 {
1214 case R_LM32_16_GOT:
1215 case R_LM32_GOTOFF_HI16:
1216 case R_LM32_GOTOFF_LO16:
1217 if (dynobj == NULL)
1218 htab->root.dynobj = dynobj = abfd;
1219 if (!_bfd_elf_create_got_section (dynobj, info))
1220 return FALSE;
1221 break;
1222 }
1223 }
84e94c90
NC
1224
1225 /* Some relocs require a rofixup table. */
1226 if (IS_FDPIC (abfd))
07d6d2b8
AM
1227 {
1228 switch (r_type)
1229 {
1230 case R_LM32_32:
1231 /* FDPIC requires a GOT if there is a .rofixup section
1232 (Normal ELF doesn't). */
1233 if (dynobj == NULL)
1234 htab->root.dynobj = dynobj = abfd;
1235 if (!_bfd_elf_create_got_section (dynobj, info))
1236 return FALSE;
1237 /* Create .rofixup section */
1238 if (htab->sfixup32 == NULL)
1239 {
1240 if (! create_rofixup_section (dynobj, info))
1241 return FALSE;
1242 }
1243 break;
1244 case R_LM32_16_GOT:
1245 case R_LM32_GOTOFF_HI16:
1246 case R_LM32_GOTOFF_LO16:
1247 /* Create .rofixup section. */
1248 if (htab->sfixup32 == NULL)
1249 {
3d4d4302
AM
1250 if (dynobj == NULL)
1251 htab->root.dynobj = dynobj = abfd;
07d6d2b8
AM
1252 if (! create_rofixup_section (dynobj, info))
1253 return FALSE;
1254 }
1255 break;
1256 }
1257 }
84e94c90
NC
1258
1259 switch (r_type)
1260 {
1261 case R_LM32_16_GOT:
07d6d2b8
AM
1262 if (h != NULL)
1263 h->got.refcount += 1;
1264 else
1265 {
1266 bfd_signed_vma *local_got_refcounts;
1267
1268 /* This is a global offset table entry for a local symbol. */
1269 local_got_refcounts = elf_local_got_refcounts (abfd);
1270 if (local_got_refcounts == NULL)
1271 {
1272 bfd_size_type size;
1273
1274 size = symtab_hdr->sh_info;
1275 size *= sizeof (bfd_signed_vma);
1276 local_got_refcounts = bfd_zalloc (abfd, size);
1277 if (local_got_refcounts == NULL)
1278 return FALSE;
1279 elf_local_got_refcounts (abfd) = local_got_refcounts;
1280 }
1281 local_got_refcounts[r_symndx] += 1;
1282 }
1283 break;
1284
1285 /* This relocation describes the C++ object vtable hierarchy.
1286 Reconstruct it for later use during GC. */
1287 case R_LM32_GNU_VTINHERIT:
1288 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1289 return FALSE;
1290 break;
1291
1292 /* This relocation describes which C++ vtable entries are actually
1293 used. Record for later use during GC. */
1294 case R_LM32_GNU_VTENTRY:
1295 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1296 return FALSE;
1297 break;
1298
1299 }
84e94c90
NC
1300 }
1301
1302 return TRUE;
1303}
1304
1305/* Finish up the dynamic sections. */
1306
1307static bfd_boolean
1308lm32_elf_finish_dynamic_sections (bfd *output_bfd,
1309 struct bfd_link_info *info)
1310{
1311 struct elf_lm32_link_hash_table *htab;
1312 bfd *dynobj;
1313 asection *sdyn;
1314 asection *sgot;
1315
1316 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC
1317 if (htab == NULL)
1318 return FALSE;
1319
84e94c90
NC
1320 dynobj = htab->root.dynobj;
1321
ce558b89 1322 sgot = htab->root.sgotplt;
3d4d4302 1323 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
84e94c90
NC
1324
1325 if (htab->root.dynamic_sections_created)
1326 {
1327 asection *splt;
1328 Elf32_External_Dyn *dyncon, *dynconend;
1329
1330 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1331
1332 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1333 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1334
1335 for (; dyncon < dynconend; dyncon++)
07d6d2b8
AM
1336 {
1337 Elf_Internal_Dyn dyn;
1338 asection *s;
1339
1340 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1341
1342 switch (dyn.d_tag)
1343 {
1344 default:
1345 break;
1346
1347 case DT_PLTGOT:
1348 s = htab->root.sgotplt;
1349 goto get_vma;
1350 case DT_JMPREL:
1351 s = htab->root.srelplt;
1352 get_vma:
1353 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1354 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1355 break;
1356
1357 case DT_PLTRELSZ:
1358 s = htab->root.srelplt;
84e94c90 1359 dyn.d_un.d_val = s->size;
07d6d2b8
AM
1360 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1361 break;
1362 }
1363 }
84e94c90
NC
1364
1365 /* Fill in the first entry in the procedure linkage table. */
ce558b89 1366 splt = htab->root.splt;
84e94c90 1367 if (splt && splt->size > 0)
07d6d2b8
AM
1368 {
1369 if (bfd_link_pic (info))
1370 {
1371 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
1372 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
1373 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
1374 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
1375 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
1376 }
1377 else
1378 {
1379 unsigned long addr;
1380 /* addr = .got + 4 */
1381 addr = sgot->output_section->vma + sgot->output_offset + 4;
1382 bfd_put_32 (output_bfd,
84e94c90
NC
1383 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1384 splt->contents);
07d6d2b8 1385 bfd_put_32 (output_bfd,
84e94c90
NC
1386 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1387 splt->contents + 4);
07d6d2b8
AM
1388 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1389 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1390 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1391 }
1392
1393 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
1394 PLT_ENTRY_SIZE;
1395 }
84e94c90
NC
1396 }
1397
1398 /* Fill in the first three entries in the global offset table. */
1399 if (sgot && sgot->size > 0)
1400 {
1401 if (sdyn == NULL)
07d6d2b8 1402 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
84e94c90 1403 else
07d6d2b8
AM
1404 bfd_put_32 (output_bfd,
1405 sdyn->output_section->vma + sdyn->output_offset,
1406 sgot->contents);
84e94c90
NC
1407 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1408 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1409
1410 /* FIXME: This can be null if create_dynamic_sections wasn't called. */
1411 if (elf_section_data (sgot->output_section) != NULL)
07d6d2b8 1412 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
84e94c90
NC
1413 }
1414
1415 if (lm32fdpic_fixup32_section (info))
1416 {
1417 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
1418 bfd_vma got_value = hgot->root.u.def.value
07d6d2b8
AM
1419 + hgot->root.u.def.section->output_section->vma
1420 + hgot->root.u.def.section->output_offset;
84e94c90
NC
1421 struct bfd_link_hash_entry *hend;
1422
1423 /* Last entry is pointer to GOT. */
1424 _lm32fdpic_add_rofixup (output_bfd, lm32fdpic_fixup32_section (info), got_value);
1425
1426 /* Check we wrote enough entries. */
1427 if (lm32fdpic_fixup32_section (info)->size
07d6d2b8
AM
1428 != (lm32fdpic_fixup32_section (info)->reloc_count * 4))
1429 {
4eca0228 1430 _bfd_error_handler
2dcf00ce
AM
1431 ("LINKER BUG: .rofixup section size mismatch: size/4 %" PRId64
1432 " != relocs %d",
1433 (int64_t) (lm32fdpic_fixup32_section (info)->size / 4),
07d6d2b8
AM
1434 lm32fdpic_fixup32_section (info)->reloc_count);
1435 return FALSE;
1436 }
84e94c90
NC
1437
1438 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
07d6d2b8 1439 FALSE, FALSE, TRUE);
84e94c90 1440 if (hend
07d6d2b8
AM
1441 && (hend->type == bfd_link_hash_defined
1442 || hend->type == bfd_link_hash_defweak))
1443 {
1444 bfd_vma value =
1445 lm32fdpic_fixup32_section (info)->output_section->vma
1446 + lm32fdpic_fixup32_section (info)->output_offset
1447 + lm32fdpic_fixup32_section (info)->size
1448 - hend->u.def.section->output_section->vma
1449 - hend->u.def.section->output_offset;
1450 BFD_ASSERT (hend->u.def.value == value);
1451 if (hend->u.def.value != value)
1452 {
4eca0228 1453 _bfd_error_handler
2dcf00ce
AM
1454 ("LINKER BUG: .rofixup section hend->u.def.value != value: %"
1455 PRId64 " != %" PRId64,
1456 (int64_t) hend->u.def.value, (int64_t) value);
07d6d2b8
AM
1457 return FALSE;
1458 }
1459 }
84e94c90
NC
1460 }
1461
1462 return TRUE;
1463}
1464
1465/* Finish up dynamic symbol handling. We set the contents of various
1466 dynamic sections here. */
1467
1468static bfd_boolean
1469lm32_elf_finish_dynamic_symbol (bfd *output_bfd,
1470 struct bfd_link_info *info,
1471 struct elf_link_hash_entry *h,
1472 Elf_Internal_Sym *sym)
1473{
1474 struct elf_lm32_link_hash_table *htab;
84e94c90
NC
1475 bfd_byte *loc;
1476
1477 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC
1478 if (htab == NULL)
1479 return FALSE;
1480
84e94c90
NC
1481 if (h->plt.offset != (bfd_vma) -1)
1482 {
1483 asection *splt;
1484 asection *sgot;
1485 asection *srela;
1486
1487 bfd_vma plt_index;
1488 bfd_vma got_offset;
1489 Elf_Internal_Rela rela;
1490
1491 /* This symbol has an entry in the procedure linkage table. Set
07d6d2b8 1492 it up. */
84e94c90
NC
1493 BFD_ASSERT (h->dynindx != -1);
1494
ce558b89
AM
1495 splt = htab->root.splt;
1496 sgot = htab->root.sgotplt;
1497 srela = htab->root.srelplt;
84e94c90
NC
1498 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1499
1500 /* Get the index in the procedure linkage table which
07d6d2b8
AM
1501 corresponds to this symbol. This is the index of this symbol
1502 in all the symbols for which we are making plt entries. The
1503 first entry in the procedure linkage table is reserved. */
84e94c90
NC
1504 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1505
1506 /* Get the offset into the .got table of the entry that
07d6d2b8
AM
1507 corresponds to this function. Each .got entry is 4 bytes.
1508 The first three are reserved. */
84e94c90
NC
1509 got_offset = (plt_index + 3) * 4;
1510
1511 /* Fill in the entry in the procedure linkage table. */
0e1862bb 1512 if (! bfd_link_pic (info))
07d6d2b8
AM
1513 {
1514 /* TODO */
1515 }
84e94c90 1516 else
07d6d2b8
AM
1517 {
1518 /* TODO */
1519 }
84e94c90
NC
1520
1521 /* Fill in the entry in the global offset table. */
1522 bfd_put_32 (output_bfd,
07d6d2b8
AM
1523 (splt->output_section->vma
1524 + splt->output_offset
1525 + h->plt.offset
1526 + 12), /* same offset */
1527 sgot->contents + got_offset);
84e94c90
NC
1528
1529 /* Fill in the entry in the .rela.plt section. */
1530 rela.r_offset = (sgot->output_section->vma
07d6d2b8
AM
1531 + sgot->output_offset
1532 + got_offset);
84e94c90
NC
1533 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_JMP_SLOT);
1534 rela.r_addend = 0;
1535 loc = srela->contents;
1536 loc += plt_index * sizeof (Elf32_External_Rela);
1537 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1538
1539 if (!h->def_regular)
07d6d2b8
AM
1540 {
1541 /* Mark the symbol as undefined, rather than as defined in
1542 the .plt section. Leave the value alone. */
1543 sym->st_shndx = SHN_UNDEF;
1544 }
84e94c90
NC
1545
1546 }
1547
1548 if (h->got.offset != (bfd_vma) -1)
1549 {
1550 asection *sgot;
1551 asection *srela;
1552 Elf_Internal_Rela rela;
1553
1554 /* This symbol has an entry in the global offset table. Set it
07d6d2b8 1555 up. */
ce558b89
AM
1556 sgot = htab->root.sgot;
1557 srela = htab->root.srelgot;
84e94c90
NC
1558 BFD_ASSERT (sgot != NULL && srela != NULL);
1559
1560 rela.r_offset = (sgot->output_section->vma
07d6d2b8
AM
1561 + sgot->output_offset
1562 + (h->got.offset &~ 1));
84e94c90
NC
1563
1564 /* If this is a -Bsymbolic link, and the symbol is defined
07d6d2b8
AM
1565 locally, we just want to emit a RELATIVE reloc. Likewise if
1566 the symbol was forced to be local because of a version file.
1567 The entry in the global offset table will already have been
1568 initialized in the relocate_section function. */
0e1862bb 1569 if (bfd_link_pic (info)
07d6d2b8 1570 && (info->symbolic
84e94c90
NC
1571 || h->dynindx == -1
1572 || h->forced_local)
07d6d2b8
AM
1573 && h->def_regular)
1574 {
1575 rela.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
1576 rela.r_addend = (h->root.u.def.value
1577 + h->root.u.def.section->output_section->vma
1578 + h->root.u.def.section->output_offset);
1579 }
84e94c90 1580 else
07d6d2b8 1581 {
84e94c90 1582 BFD_ASSERT ((h->got.offset & 1) == 0);
07d6d2b8
AM
1583 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1584 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_GLOB_DAT);
1585 rela.r_addend = 0;
1586 }
84e94c90
NC
1587
1588 loc = srela->contents;
1589 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1590 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1591 ++srela->reloc_count;
1592 }
1593
1594 if (h->needs_copy)
1595 {
1596 asection *s;
1597 Elf_Internal_Rela rela;
1598
1599 /* This symbols needs a copy reloc. Set it up. */
1600 BFD_ASSERT (h->dynindx != -1
07d6d2b8
AM
1601 && (h->root.type == bfd_link_hash_defined
1602 || h->root.type == bfd_link_hash_defweak));
84e94c90 1603
3d4d4302 1604 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
84e94c90
NC
1605 BFD_ASSERT (s != NULL);
1606
1607 rela.r_offset = (h->root.u.def.value
07d6d2b8
AM
1608 + h->root.u.def.section->output_section->vma
1609 + h->root.u.def.section->output_offset);
84e94c90
NC
1610 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_COPY);
1611 rela.r_addend = 0;
1612 loc = s->contents;
1613 loc += s->reloc_count * sizeof (Elf32_External_Rela);
1614 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1615 ++s->reloc_count;
1616 }
1617
1618 /* Mark some specially defined symbols as absolute. */
9637f6ef 1619 if (h == htab->root.hdynamic || h == htab->root.hgot)
84e94c90
NC
1620 sym->st_shndx = SHN_ABS;
1621
1622 return TRUE;
1623}
1624
1625static enum elf_reloc_type_class
7e612e98
AM
1626lm32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1627 const asection *rel_sec ATTRIBUTE_UNUSED,
1628 const Elf_Internal_Rela *rela)
84e94c90
NC
1629{
1630 switch ((int) ELF32_R_TYPE (rela->r_info))
1631 {
1632 case R_LM32_RELATIVE: return reloc_class_relative;
1633 case R_LM32_JMP_SLOT: return reloc_class_plt;
1634 case R_LM32_COPY: return reloc_class_copy;
07d6d2b8 1635 default: return reloc_class_normal;
84e94c90
NC
1636 }
1637}
1638
63c1f59d
AM
1639/* Find dynamic relocs for H that apply to read-only sections. */
1640
1641static asection *
1642readonly_dynrelocs (struct elf_link_hash_entry *h)
1643{
3bf083ed 1644 struct elf_dyn_relocs *p;
63c1f59d
AM
1645 struct elf_lm32_link_hash_entry *eh = (struct elf_lm32_link_hash_entry *) h;
1646
1647 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1648 {
1649 asection *s = p->sec->output_section;
1650
1651 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1652 return p->sec;
1653 }
1654 return NULL;
1655}
1656
84e94c90
NC
1657/* Adjust a symbol defined by a dynamic object and referenced by a
1658 regular object. The current definition is in some section of the
1659 dynamic object, but we're not including those sections. We have to
1660 change the definition to something the rest of the link can
1661 understand. */
1662
1663static bfd_boolean
1664lm32_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1665 struct elf_link_hash_entry *h)
1666{
1667 struct elf_lm32_link_hash_table *htab;
84e94c90
NC
1668 bfd *dynobj;
1669 asection *s;
1670
1671 dynobj = elf_hash_table (info)->dynobj;
1672
1673 /* Make sure we know what is going on here. */
1674 BFD_ASSERT (dynobj != NULL
07d6d2b8
AM
1675 && (h->needs_plt
1676 || h->is_weakalias
1677 || (h->def_dynamic
1678 && h->ref_regular
1679 && !h->def_regular)));
84e94c90
NC
1680
1681 /* If this is a function, put it in the procedure linkage table. We
1682 will fill in the contents of the procedure linkage table later,
1683 when we know the address of the .got section. */
1684 if (h->type == STT_FUNC
1685 || h->needs_plt)
1686 {
0e1862bb 1687 if (! bfd_link_pic (info)
07d6d2b8
AM
1688 && !h->def_dynamic
1689 && !h->ref_dynamic
84e94c90
NC
1690 && h->root.type != bfd_link_hash_undefweak
1691 && h->root.type != bfd_link_hash_undefined)
07d6d2b8
AM
1692 {
1693 /* This case can occur if we saw a PLT reloc in an input
1694 file, but the symbol was never referred to by a dynamic
1695 object. In such a case, we don't actually need to build
1696 a procedure linkage table, and we can just do a PCREL
1697 reloc instead. */
1698 h->plt.offset = (bfd_vma) -1;
1699 h->needs_plt = 0;
1700 }
84e94c90
NC
1701
1702 return TRUE;
1703 }
1704 else
1705 h->plt.offset = (bfd_vma) -1;
1706
1707 /* If this is a weak symbol, and there is a real definition, the
1708 processor independent code will have arranged for us to see the
1709 real definition first, and we can just use the same value. */
60d67dc8 1710 if (h->is_weakalias)
84e94c90 1711 {
60d67dc8
AM
1712 struct elf_link_hash_entry *def = weakdef (h);
1713 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1714 h->root.u.def.section = def->root.u.def.section;
1715 h->root.u.def.value = def->root.u.def.value;
84e94c90
NC
1716 return TRUE;
1717 }
1718
1719 /* This is a reference to a symbol defined by a dynamic object which
1720 is not a function. */
1721
1722 /* If we are creating a shared library, we must presume that the
1723 only references to the symbol are via the global offset table.
1724 For such cases we need not do anything here; the relocations will
1725 be handled correctly by relocate_section. */
0e1862bb 1726 if (bfd_link_pic (info))
84e94c90
NC
1727 return TRUE;
1728
1729 /* If there are no references to this symbol that do not use the
1730 GOT, we don't need to generate a copy reloc. */
1731 if (!h->non_got_ref)
1732 return TRUE;
1733
1734 /* If -z nocopyreloc was given, we won't generate them either. */
3bf083ed 1735 if (0 && info->nocopyreloc)
84e94c90
NC
1736 {
1737 h->non_got_ref = 0;
1738 return TRUE;
1739 }
1740
3bf083ed
AM
1741 /* If we don't find any dynamic relocs in read-only sections, then
1742 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1743 if (0 && !readonly_dynrelocs (h))
84e94c90
NC
1744 {
1745 h->non_got_ref = 0;
1746 return TRUE;
1747 }
1748
84e94c90
NC
1749 /* We must allocate the symbol in our .dynbss section, which will
1750 become part of the .bss section of the executable. There will be
1751 an entry for this symbol in the .dynsym section. The dynamic
1752 object will contain position independent code, so all references
1753 from the dynamic object to this symbol will go through the global
1754 offset table. The dynamic linker will use the .dynsym entry to
1755 determine the address it must put in the global offset table, so
1756 both the dynamic object and the regular object will refer to the
1757 same memory location for the variable. */
1758
1759 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC
1760 if (htab == NULL)
1761 return FALSE;
1762
84e94c90
NC
1763 s = htab->sdynbss;
1764 BFD_ASSERT (s != NULL);
1765
1766 /* We must generate a R_LM32_COPY reloc to tell the dynamic linker
1767 to copy the initial value out of the dynamic object and into the
1768 runtime process image. We need to remember the offset into the
1769 .rela.bss section we are going to use. */
1d7e9d18 1770 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
84e94c90
NC
1771 {
1772 asection *srel;
1773
1774 srel = htab->srelbss;
1775 BFD_ASSERT (srel != NULL);
1776 srel->size += sizeof (Elf32_External_Rela);
1777 h->needs_copy = 1;
1778 }
1779
6cabe1ea 1780 return _bfd_elf_adjust_dynamic_copy (info, h, s);
84e94c90
NC
1781}
1782
1783/* Allocate space in .plt, .got and associated reloc sections for
1784 dynamic relocs. */
1785
1786static bfd_boolean
1787allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1788{
1789 struct bfd_link_info *info;
1790 struct elf_lm32_link_hash_table *htab;
1791 struct elf_lm32_link_hash_entry *eh;
3bf083ed 1792 struct elf_dyn_relocs *p;
84e94c90
NC
1793
1794 if (h->root.type == bfd_link_hash_indirect)
1795 return TRUE;
1796
84e94c90
NC
1797 info = (struct bfd_link_info *) inf;
1798 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC
1799 if (htab == NULL)
1800 return FALSE;
84e94c90
NC
1801
1802 eh = (struct elf_lm32_link_hash_entry *) h;
1803
1804 if (htab->root.dynamic_sections_created
1805 && h->plt.refcount > 0)
1806 {
1807 /* Make sure this symbol is output as a dynamic symbol.
07d6d2b8 1808 Undefined weak syms won't yet be marked as dynamic. */
84e94c90 1809 if (h->dynindx == -1
07d6d2b8
AM
1810 && !h->forced_local)
1811 {
1812 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1813 return FALSE;
1814 }
84e94c90 1815
0e1862bb 1816 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
07d6d2b8
AM
1817 {
1818 asection *s = htab->root.splt;
1819
1820 /* If this is the first .plt entry, make room for the special
1821 first entry. */
1822 if (s->size == 0)
1823 s->size += PLT_ENTRY_SIZE;
1824
1825 h->plt.offset = s->size;
1826
1827 /* If this symbol is not defined in a regular file, and we are
1828 not generating a shared library, then set the symbol to this
1829 location in the .plt. This is required to make function
1830 pointers compare as equal between the normal executable and
1831 the shared library. */
1832 if (! bfd_link_pic (info)
1833 && !h->def_regular)
1834 {
1835 h->root.u.def.section = s;
1836 h->root.u.def.value = h->plt.offset;
1837 }
1838
1839 /* Make room for this entry. */
1840 s->size += PLT_ENTRY_SIZE;
1841
1842 /* We also need to make an entry in the .got.plt section, which
1843 will be placed in the .got section by the linker script. */
1844 htab->root.sgotplt->size += 4;
1845
1846 /* We also need to make an entry in the .rel.plt section. */
1847 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
1848 }
84e94c90 1849 else
07d6d2b8
AM
1850 {
1851 h->plt.offset = (bfd_vma) -1;
1852 h->needs_plt = 0;
1853 }
84e94c90
NC
1854 }
1855 else
1856 {
1857 h->plt.offset = (bfd_vma) -1;
1858 h->needs_plt = 0;
1859 }
1860
1861 if (h->got.refcount > 0)
1862 {
1863 asection *s;
1864 bfd_boolean dyn;
1865
1866 /* Make sure this symbol is output as a dynamic symbol.
07d6d2b8 1867 Undefined weak syms won't yet be marked as dynamic. */
84e94c90 1868 if (h->dynindx == -1
07d6d2b8
AM
1869 && !h->forced_local)
1870 {
1871 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1872 return FALSE;
1873 }
84e94c90 1874
ce558b89 1875 s = htab->root.sgot;
84e94c90
NC
1876
1877 h->got.offset = s->size;
1878 s->size += 4;
1879 dyn = htab->root.dynamic_sections_created;
0e1862bb 1880 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
07d6d2b8 1881 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
84e94c90
NC
1882 }
1883 else
1884 h->got.offset = (bfd_vma) -1;
1885
1886 if (eh->dyn_relocs == NULL)
1887 return TRUE;
1888
1889 /* In the shared -Bsymbolic case, discard space allocated for
1890 dynamic pc-relative relocs against symbols which turn out to be
1891 defined in regular objects. For the normal shared case, discard
1892 space for pc-relative relocs that have become local due to symbol
1893 visibility changes. */
1894
0e1862bb 1895 if (bfd_link_pic (info))
84e94c90
NC
1896 {
1897 if (h->def_regular
07d6d2b8
AM
1898 && (h->forced_local
1899 || info->symbolic))
1900 {
1901 struct elf_dyn_relocs **pp;
1902
1903 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
1904 {
1905 p->count -= p->pc_count;
1906 p->pc_count = 0;
1907 if (p->count == 0)
1908 *pp = p->next;
1909 else
1910 pp = &p->next;
1911 }
1912 }
84e94c90
NC
1913
1914 /* Also discard relocs on undefined weak syms with non-default
1915 visibility. */
1916 if (eh->dyn_relocs != NULL
1917 && h->root.type == bfd_link_hash_undefweak)
1918 {
1919 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1920 eh->dyn_relocs = NULL;
1921
1922 /* Make sure undefined weak symbols are output as a dynamic
1923 symbol in PIEs. */
1924 else if (h->dynindx == -1
1925 && !h->forced_local)
1926 {
1927 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1928 return FALSE;
1929 }
1930 }
1931 }
1932 else
1933 {
1934 /* For the non-shared case, discard space for relocs against
07d6d2b8
AM
1935 symbols which turn out to need copy relocs or are not
1936 dynamic. */
84e94c90
NC
1937
1938 if (!h->non_got_ref
07d6d2b8
AM
1939 && ((h->def_dynamic
1940 && !h->def_regular)
1941 || (htab->root.dynamic_sections_created
1942 && (h->root.type == bfd_link_hash_undefweak
1943 || h->root.type == bfd_link_hash_undefined))))
1944 {
1945 /* Make sure this symbol is output as a dynamic symbol.
1946 Undefined weak syms won't yet be marked as dynamic. */
1947 if (h->dynindx == -1
1948 && !h->forced_local)
1949 {
1950 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1951 return FALSE;
1952 }
1953
1954 /* If that succeeded, we know we'll be keeping all the
1955 relocs. */
1956 if (h->dynindx != -1)
1957 goto keep;
1958 }
84e94c90
NC
1959
1960 eh->dyn_relocs = NULL;
1961
1962 keep: ;
1963 }
1964
1965 /* Finally, allocate space. */
1966 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1967 {
1968 asection *sreloc = elf_section_data (p->sec)->sreloc;
1969 sreloc->size += p->count * sizeof (Elf32_External_Rela);
1970 }
1971
1972 return TRUE;
1973}
1974
63c1f59d
AM
1975/* Set DF_TEXTREL if we find any dynamic relocs that apply to
1976 read-only sections. */
84e94c90
NC
1977
1978static bfd_boolean
63c1f59d 1979maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
84e94c90 1980{
63c1f59d 1981 asection *sec;
84e94c90 1982
63c1f59d
AM
1983 if (h->root.type == bfd_link_hash_indirect)
1984 return TRUE;
84e94c90 1985
63c1f59d
AM
1986 sec = readonly_dynrelocs (h);
1987 if (sec != NULL)
1988 {
1989 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
84e94c90 1990
63c1f59d
AM
1991 info->flags |= DF_TEXTREL;
1992 info->callbacks->minfo
c1c8c1ef 1993 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
63c1f59d 1994 sec->owner, h->root.root.string, sec);
84e94c90 1995
63c1f59d
AM
1996 /* Not an error, just cut short the traversal. */
1997 return FALSE;
84e94c90
NC
1998 }
1999 return TRUE;
2000}
2001
2002/* Set the sizes of the dynamic sections. */
2003
2004static bfd_boolean
2005lm32_elf_size_dynamic_sections (bfd *output_bfd,
07d6d2b8 2006 struct bfd_link_info *info)
84e94c90
NC
2007{
2008 struct elf_lm32_link_hash_table *htab;
2009 bfd *dynobj;
2010 asection *s;
2011 bfd_boolean relocs;
2012 bfd *ibfd;
2013
2014 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC
2015 if (htab == NULL)
2016 return FALSE;
2017
84e94c90
NC
2018 dynobj = htab->root.dynobj;
2019 BFD_ASSERT (dynobj != NULL);
2020
2021 if (htab->root.dynamic_sections_created)
2022 {
2023 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2024 if (bfd_link_executable (info) && !info->nointerp)
84e94c90 2025 {
3d4d4302 2026 s = bfd_get_linker_section (dynobj, ".interp");
84e94c90
NC
2027 BFD_ASSERT (s != NULL);
2028 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2029 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2030 }
2031 }
2032
2033 /* Set up .got offsets for local syms, and space for local dynamic
2034 relocs. */
c72f2fb2 2035 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
84e94c90
NC
2036 {
2037 bfd_signed_vma *local_got;
2038 bfd_signed_vma *end_local_got;
2039 bfd_size_type locsymcount;
2040 Elf_Internal_Shdr *symtab_hdr;
2041 asection *srel;
2042
2043 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
07d6d2b8 2044 continue;
84e94c90
NC
2045
2046 for (s = ibfd->sections; s != NULL; s = s->next)
07d6d2b8
AM
2047 {
2048 struct elf_dyn_relocs *p;
2049
2050 for (p = ((struct elf_dyn_relocs *)
2051 elf_section_data (s)->local_dynrel);
2052 p != NULL;
2053 p = p->next)
2054 {
2055 if (! bfd_is_abs_section (p->sec)
2056 && bfd_is_abs_section (p->sec->output_section))
2057 {
2058 /* Input section has been discarded, either because
2059 it is a copy of a linkonce section or due to
2060 linker script /DISCARD/, so we'll be discarding
2061 the relocs too. */
2062 }
2063 else if (p->count != 0)
2064 {
2065 srel = elf_section_data (p->sec)->sreloc;
2066 srel->size += p->count * sizeof (Elf32_External_Rela);
2067 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2068 info->flags |= DF_TEXTREL;
2069 }
2070 }
2071 }
84e94c90
NC
2072
2073 local_got = elf_local_got_refcounts (ibfd);
2074 if (!local_got)
07d6d2b8 2075 continue;
84e94c90
NC
2076
2077 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2078 locsymcount = symtab_hdr->sh_info;
2079 end_local_got = local_got + locsymcount;
ce558b89
AM
2080 s = htab->root.sgot;
2081 srel = htab->root.srelgot;
84e94c90 2082 for (; local_got < end_local_got; ++local_got)
07d6d2b8
AM
2083 {
2084 if (*local_got > 0)
2085 {
2086 *local_got = s->size;
2087 s->size += 4;
2088 if (bfd_link_pic (info))
2089 srel->size += sizeof (Elf32_External_Rela);
2090 }
2091 else
2092 *local_got = (bfd_vma) -1;
2093 }
84e94c90
NC
2094 }
2095
2096 /* Allocate global sym .plt and .got entries, and space for global
2097 sym dynamic relocs. */
2098 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2099
2100 /* We now have determined the sizes of the various dynamic sections.
2101 Allocate memory for them. */
2102 relocs = FALSE;
2103 for (s = dynobj->sections; s != NULL; s = s->next)
2104 {
2105 if ((s->flags & SEC_LINKER_CREATED) == 0)
07d6d2b8 2106 continue;
84e94c90 2107
ce558b89 2108 if (s == htab->root.splt
07d6d2b8
AM
2109 || s == htab->root.sgot
2110 || s == htab->root.sgotplt
84e94c90 2111 || s == htab->sdynbss)
07d6d2b8
AM
2112 {
2113 /* Strip this section if we don't need it; see the
2114 comment below. */
2115 }
84e94c90 2116 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
07d6d2b8
AM
2117 {
2118 if (s->size != 0 && s != htab->root.srelplt)
2119 relocs = TRUE;
2120
2121 /* We use the reloc_count field as a counter if we need
2122 to copy relocs into the output file. */
2123 s->reloc_count = 0;
2124 }
84e94c90
NC
2125 else
2126 /* It's not one of our sections, so don't allocate space. */
2127 continue;
2128
2129 if (s->size == 0)
07d6d2b8
AM
2130 {
2131 /* If we don't need this section, strip it from the
2132 output file. This is mostly to handle .rela.bss and
2133 .rela.plt. We must create both sections in
2134 create_dynamic_sections, because they must be created
2135 before the linker maps input sections to output
2136 sections. The linker does that before
2137 adjust_dynamic_symbol is called, and it is that
2138 function which decides whether anything needs to go
2139 into these sections. */
2140 s->flags |= SEC_EXCLUDE;
2141 continue;
2142 }
84e94c90
NC
2143
2144 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2145 continue;
2146
2147 /* Allocate memory for the section contents. We use bfd_zalloc
07d6d2b8
AM
2148 here in case unused entries are not reclaimed before the
2149 section's contents are written out. This should not happen,
2150 but this way if it does, we get a R_LM32_NONE reloc instead
2151 of garbage. */
84e94c90
NC
2152 s->contents = bfd_zalloc (dynobj, s->size);
2153 if (s->contents == NULL)
07d6d2b8 2154 return FALSE;
84e94c90
NC
2155 }
2156
2157 if (htab->root.dynamic_sections_created)
2158 {
2159 /* Add some entries to the .dynamic section. We fill in the
2160 values later, in lm32_elf_finish_dynamic_sections, but we
2161 must add the entries now so that we get the correct size for
2162 the .dynamic section. The DT_DEBUG entry is filled in by the
2163 dynamic linker and used by the debugger. */
2164#define add_dynamic_entry(TAG, VAL) \
2165 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2166
0e1862bb 2167 if (bfd_link_executable (info))
84e94c90
NC
2168 {
2169 if (! add_dynamic_entry (DT_DEBUG, 0))
2170 return FALSE;
2171 }
2172
ce558b89 2173 if (htab->root.splt->size != 0)
07d6d2b8
AM
2174 {
2175 if (! add_dynamic_entry (DT_PLTGOT, 0)
2176 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2177 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2178 || ! add_dynamic_entry (DT_JMPREL, 0))
2179 return FALSE;
2180 }
84e94c90
NC
2181
2182 if (relocs)
07d6d2b8
AM
2183 {
2184 if (! add_dynamic_entry (DT_RELA, 0)
2185 || ! add_dynamic_entry (DT_RELASZ, 0)
2186 || ! add_dynamic_entry (DT_RELAENT,
2187 sizeof (Elf32_External_Rela)))
2188 return FALSE;
2189
2190 /* If any dynamic relocs apply to a read-only section,
2191 then we need a DT_TEXTREL entry. */
2192 if ((info->flags & DF_TEXTREL) == 0)
2193 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
2194
2195 if ((info->flags & DF_TEXTREL) != 0)
2196 {
2197 if (! add_dynamic_entry (DT_TEXTREL, 0))
2198 return FALSE;
2199 }
2200 }
84e94c90
NC
2201 }
2202#undef add_dynamic_entry
2203
2204 /* Allocate .rofixup section. */
2205 if (IS_FDPIC (output_bfd))
2206 {
2207 struct weak_symbol_list *list_start = NULL, *list_end = NULL;
2208 int rgot_weak_count = 0;
2209 int r32_count = 0;
2210 int rgot_count = 0;
2211 /* Look for deleted sections. */
c72f2fb2 2212 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
07d6d2b8
AM
2213 {
2214 for (s = ibfd->sections; s != NULL; s = s->next)
2215 {
2216 if (s->reloc_count)
2217 {
2218 /* Count relocs that need .rofixup entires. */
2219 Elf_Internal_Rela *internal_relocs, *end;
2220 internal_relocs = elf_section_data (s)->relocs;
2221 if (internal_relocs == NULL)
2222 internal_relocs = (_bfd_elf_link_read_relocs (ibfd, s, NULL, NULL, FALSE));
2223 if (internal_relocs != NULL)
2224 {
2225 end = internal_relocs + s->reloc_count;
2226 while (internal_relocs < end)
2227 {
2228 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2229 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
2230 unsigned long r_symndx;
2231 struct elf_link_hash_entry *h;
2232
2233 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2234 sym_hashes = elf_sym_hashes (ibfd);
2235 r_symndx = ELF32_R_SYM (internal_relocs->r_info);
2236 h = NULL;
2237 if (r_symndx < symtab_hdr->sh_info)
2238 {
2239 }
2240 else
2241 {
2242 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2243 while (h->root.type == bfd_link_hash_indirect
2244 || h->root.type == bfd_link_hash_warning)
2245 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2246 }
2247
2248 /* Don't generate entries for weak symbols. */
2249 if (!h || (h && h->root.type != bfd_link_hash_undefweak))
2250 {
2251 if (!discarded_section (s) && !((bfd_get_section_flags (ibfd, s) & SEC_ALLOC) == 0))
2252 {
2253 switch (ELF32_R_TYPE (internal_relocs->r_info))
2254 {
2255 case R_LM32_32:
2256 r32_count++;
2257 break;
2258 case R_LM32_16_GOT:
2259 rgot_count++;
2260 break;
2261 }
2262 }
2263 }
2264 else
2265 {
2266 struct weak_symbol_list *current, *new_entry;
2267 /* Is this symbol already in the list? */
2268 for (current = list_start; current; current = current->next)
2269 {
2270 if (!strcmp (current->name, h->root.root.string))
2271 break;
2272 }
2273 if (!current && !discarded_section (s) && (bfd_get_section_flags (ibfd, s) & SEC_ALLOC))
2274 {
2275 /* Will this have an entry in the GOT. */
2276 if (ELF32_R_TYPE (internal_relocs->r_info) == R_LM32_16_GOT)
2277 {
2278 /* Create a new entry. */
2279 new_entry = malloc (sizeof (struct weak_symbol_list));
2280 if (!new_entry)
2281 return FALSE;
2282 new_entry->name = h->root.root.string;
2283 new_entry->next = NULL;
2284 /* Add to list */
2285 if (list_start == NULL)
2286 {
2287 list_start = new_entry;
2288 list_end = new_entry;
2289 }
2290 else
2291 {
2292 list_end->next = new_entry;
2293 list_end = new_entry;
2294 }
2295 /* Increase count of undefined weak symbols in the got. */
2296 rgot_weak_count++;
2297 }
2298 }
2299 }
2300 internal_relocs++;
2301 }
2302 }
2303 else
2304 return FALSE;
2305 }
2306 }
2307 }
84e94c90
NC
2308 /* Free list. */
2309 while (list_start)
07d6d2b8
AM
2310 {
2311 list_end = list_start->next;
2312 free (list_start);
2313 list_start = list_end;
2314 }
84e94c90
NC
2315
2316 /* Size sections. */
ce558b89
AM
2317 lm32fdpic_fixup32_section (info)->size
2318 = (r32_count + (htab->root.sgot->size / 4) - rgot_weak_count + 1) * 4;
84e94c90 2319 if (lm32fdpic_fixup32_section (info)->size == 0)
07d6d2b8 2320 lm32fdpic_fixup32_section (info)->flags |= SEC_EXCLUDE;
84e94c90 2321 else
07d6d2b8
AM
2322 {
2323 lm32fdpic_fixup32_section (info)->contents =
2324 bfd_zalloc (dynobj, lm32fdpic_fixup32_section (info)->size);
2325 if (lm32fdpic_fixup32_section (info)->contents == NULL)
2326 return FALSE;
2327 }
84e94c90
NC
2328 }
2329
2330 return TRUE;
2331}
2332
2333/* Create dynamic sections when linking against a dynamic object. */
2334
2335static bfd_boolean
2336lm32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2337{
2338 struct elf_lm32_link_hash_table *htab;
2339 flagword flags, pltflags;
2340 asection *s;
2341 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2342 int ptralign = 2; /* 32bit */
2343
2344 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC
2345 if (htab == NULL)
2346 return FALSE;
84e94c90
NC
2347
2348 /* Make sure we have a GOT - For the case where we have a dynamic object
2349 but none of the relocs in check_relocs */
ce558b89 2350 if (!_bfd_elf_create_got_section (abfd, info))
84e94c90
NC
2351 return FALSE;
2352 if (IS_FDPIC (abfd) && (htab->sfixup32 == NULL))
2353 {
2354 if (! create_rofixup_section (abfd, info))
07d6d2b8 2355 return FALSE;
84e94c90
NC
2356 }
2357
2358 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2359 .rel[a].bss sections. */
2360 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
07d6d2b8 2361 | SEC_LINKER_CREATED);
84e94c90
NC
2362
2363 pltflags = flags;
2364 pltflags |= SEC_CODE;
2365 if (bed->plt_not_loaded)
2366 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2367 if (bed->plt_readonly)
2368 pltflags |= SEC_READONLY;
2369
3d4d4302 2370 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
ce558b89 2371 htab->root.splt = s;
84e94c90
NC
2372 if (s == NULL
2373 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
2374 return FALSE;
2375
2376 if (bed->want_plt_sym)
2377 {
2378 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
07d6d2b8 2379 .plt section. */
84e94c90
NC
2380 struct bfd_link_hash_entry *bh = NULL;
2381 struct elf_link_hash_entry *h;
2382
2383 if (! (_bfd_generic_link_add_one_symbol
07d6d2b8
AM
2384 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
2385 (bfd_vma) 0, NULL, FALSE,
2386 get_elf_backend_data (abfd)->collect, &bh)))
2387 return FALSE;
84e94c90
NC
2388 h = (struct elf_link_hash_entry *) bh;
2389 h->def_regular = 1;
2390 h->type = STT_OBJECT;
2391 htab->root.hplt = h;
2392
0e1862bb 2393 if (bfd_link_pic (info)
07d6d2b8
AM
2394 && ! bfd_elf_link_record_dynamic_symbol (info, h))
2395 return FALSE;
84e94c90
NC
2396 }
2397
3d4d4302
AM
2398 s = bfd_make_section_anyway_with_flags (abfd,
2399 bed->default_use_rela_p
2400 ? ".rela.plt" : ".rel.plt",
2401 flags | SEC_READONLY);
ce558b89 2402 htab->root.srelplt = s;
84e94c90
NC
2403 if (s == NULL
2404 || ! bfd_set_section_alignment (abfd, s, ptralign))
2405 return FALSE;
2406
ce558b89
AM
2407 if (htab->root.sgot == NULL
2408 && !_bfd_elf_create_got_section (abfd, info))
84e94c90
NC
2409 return FALSE;
2410
84e94c90
NC
2411 if (bed->want_dynbss)
2412 {
2413 /* The .dynbss section is a place to put symbols which are defined
07d6d2b8
AM
2414 by dynamic objects, are referenced by regular objects, and are
2415 not functions. We must allocate space for them in the process
2416 image and use a R_*_COPY reloc to tell the dynamic linker to
2417 initialize them at run time. The linker script puts the .dynbss
2418 section into the .bss section of the final image. */
3d4d4302
AM
2419 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2420 SEC_ALLOC | SEC_LINKER_CREATED);
84e94c90
NC
2421 htab->sdynbss = s;
2422 if (s == NULL)
07d6d2b8 2423 return FALSE;
84e94c90 2424 /* The .rel[a].bss section holds copy relocs. This section is not
07d6d2b8
AM
2425 normally needed. We need to create it here, though, so that the
2426 linker will map it to an output section. We can't just create it
2427 only if we need it, because we will not know whether we need it
2428 until we have seen all the input files, and the first time the
2429 main linker code calls BFD after examining all the input files
2430 (size_dynamic_sections) the input sections have already been
2431 mapped to the output sections. If the section turns out not to
2432 be needed, we can discard it later. We will never need this
2433 section when generating a shared object, since they do not use
2434 copy relocs. */
0e1862bb 2435 if (! bfd_link_pic (info))
07d6d2b8
AM
2436 {
2437 s = bfd_make_section_anyway_with_flags (abfd,
3d4d4302
AM
2438 (bed->default_use_rela_p
2439 ? ".rela.bss" : ".rel.bss"),
2440 flags | SEC_READONLY);
07d6d2b8
AM
2441 htab->srelbss = s;
2442 if (s == NULL
2443 || ! bfd_set_section_alignment (abfd, s, ptralign))
2444 return FALSE;
2445 }
84e94c90
NC
2446 }
2447
2448 return TRUE;
2449}
2450
2451/* Copy the extra info we tack onto an elf_link_hash_entry. */
2452
2453static void
2454lm32_elf_copy_indirect_symbol (struct bfd_link_info *info,
07d6d2b8
AM
2455 struct elf_link_hash_entry *dir,
2456 struct elf_link_hash_entry *ind)
84e94c90
NC
2457{
2458 struct elf_lm32_link_hash_entry * edir;
2459 struct elf_lm32_link_hash_entry * eind;
2460
2461 edir = (struct elf_lm32_link_hash_entry *) dir;
2462 eind = (struct elf_lm32_link_hash_entry *) ind;
2463
2464 if (eind->dyn_relocs != NULL)
2465 {
2466 if (edir->dyn_relocs != NULL)
07d6d2b8
AM
2467 {
2468 struct elf_dyn_relocs **pp;
2469 struct elf_dyn_relocs *p;
2470
2471 /* Add reloc counts against the indirect sym to the direct sym
2472 list. Merge any entries against the same section. */
2473 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2474 {
2475 struct elf_dyn_relocs *q;
2476
2477 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2478 if (q->sec == p->sec)
2479 {
2480 q->pc_count += p->pc_count;
2481 q->count += p->count;
2482 *pp = p->next;
2483 break;
2484 }
2485 if (q == NULL)
2486 pp = &p->next;
2487 }
2488 *pp = edir->dyn_relocs;
2489 }
84e94c90
NC
2490
2491 edir->dyn_relocs = eind->dyn_relocs;
2492 eind->dyn_relocs = NULL;
2493 }
2494
2495 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2496}
2497
2498static bfd_boolean
04c3a755 2499lm32_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
84e94c90 2500{
0e1862bb 2501 if (!bfd_link_relocatable (info))
84e94c90 2502 {
04c3a755
NS
2503 if (!bfd_elf_stack_segment_size (output_bfd, info,
2504 "__stacksize", DEFAULT_STACK_SIZE))
2505 return FALSE;
84e94c90 2506
84e94c90 2507 asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
84e94c90 2508 if (sec)
04c3a755 2509 sec->size = info->stacksize >= 0 ? info->stacksize : 0;
84e94c90
NC
2510 }
2511
2512 return TRUE;
2513}
2514
84e94c90
NC
2515static bfd_boolean
2516lm32_elf_fdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2517{
2518 unsigned i;
2519
2520 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2521 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2522 return TRUE;
2523
e2349352 2524 if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
84e94c90
NC
2525 return FALSE;
2526
2527 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
2528 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
2529 return TRUE;
2530
2531 /* Copy the stack size. */
2532 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
2533 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
2534 {
2535 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
2536
2537 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
2538 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
2539 {
2540 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
2541
2542 /* Rewrite the phdrs, since we're only called after they were first written. */
2543 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
2544 ->s->sizeof_ehdr, SEEK_SET) != 0
2545 || get_elf_backend_data (obfd)->s->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
2546 elf_elfheader (obfd)->e_phnum) != 0)
2547 return FALSE;
2548 break;
2549 }
2550
2551 break;
2552 }
2553
2554 return TRUE;
2555}
2556
2557
07d6d2b8 2558#define ELF_ARCH bfd_arch_lm32
ae95ffa6 2559#define ELF_TARGET_ID LM32_ELF_DATA
07d6d2b8
AM
2560#define ELF_MACHINE_CODE EM_LATTICEMICO32
2561#define ELF_MAXPAGESIZE 0x1000
2562
2563#define TARGET_BIG_SYM lm32_elf32_vec
2564#define TARGET_BIG_NAME "elf32-lm32"
2565
2566#define bfd_elf32_bfd_reloc_type_lookup lm32_reloc_type_lookup
2567#define bfd_elf32_bfd_reloc_name_lookup lm32_reloc_name_lookup
2568#define elf_info_to_howto lm32_info_to_howto_rela
2569#define elf_info_to_howto_rel 0
2570#define elf_backend_rela_normal 1
2571#define elf_backend_object_p lm32_elf_object_p
2572#define elf_backend_final_write_processing lm32_elf_final_write_processing
04c3a755 2573#define elf_backend_stack_align 8
07d6d2b8
AM
2574#define elf_backend_can_gc_sections 1
2575#define elf_backend_can_refcount 1
2576#define elf_backend_gc_mark_hook lm32_elf_gc_mark_hook
2577#define elf_backend_plt_readonly 1
2578#define elf_backend_want_got_plt 1
2579#define elf_backend_want_plt_sym 0
2580#define elf_backend_got_header_size 12
64f52338 2581#define elf_backend_dtrel_excludes_plt 1
07d6d2b8
AM
2582#define bfd_elf32_bfd_link_hash_table_create lm32_elf_link_hash_table_create
2583#define elf_backend_check_relocs lm32_elf_check_relocs
2584#define elf_backend_reloc_type_class lm32_elf_reloc_type_class
2585#define elf_backend_copy_indirect_symbol lm32_elf_copy_indirect_symbol
2586#define elf_backend_size_dynamic_sections lm32_elf_size_dynamic_sections
d00dd7dc 2587#define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all
07d6d2b8
AM
2588#define elf_backend_create_dynamic_sections lm32_elf_create_dynamic_sections
2589#define elf_backend_finish_dynamic_sections lm32_elf_finish_dynamic_sections
2590#define elf_backend_adjust_dynamic_symbol lm32_elf_adjust_dynamic_symbol
2591#define elf_backend_finish_dynamic_symbol lm32_elf_finish_dynamic_symbol
2592#define elf_backend_relocate_section lm32_elf_relocate_section
84e94c90
NC
2593
2594#include "elf32-target.h"
2595
2596#undef ELF_MAXPAGESIZE
2597#define ELF_MAXPAGESIZE 0x4000
2598
2599
2600#undef TARGET_BIG_SYM
07d6d2b8
AM
2601#define TARGET_BIG_SYM lm32_elf32_fdpic_vec
2602#undef TARGET_BIG_NAME
84e94c90
NC
2603#define TARGET_BIG_NAME "elf32-lm32fdpic"
2604#undef elf32_bed
2605#define elf32_bed elf32_lm32fdpic_bed
2606
07d6d2b8
AM
2607#undef elf_backend_always_size_sections
2608#define elf_backend_always_size_sections lm32_elf_always_size_sections
2609#undef bfd_elf32_bfd_copy_private_bfd_data
2610#define bfd_elf32_bfd_copy_private_bfd_data lm32_elf_fdpic_copy_private_bfd_data
84e94c90
NC
2611
2612#include "elf32-target.h"
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