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Delete duplicate target short-cuts to dynamic sections
[thirdparty/binutils-gdb.git] / bfd / elf32-lm32.c
CommitLineData
84e94c90 1/* Lattice Mico32-specific support for 32-bit ELF
6f2750fe 2 Copyright (C) 2008-2016 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
53/* The linker needs to keep track of the number of relocs that it
54 decides to copy as dynamic relocs in check_relocs for each symbol.
55 This is so that it can later discard them if they are found to be
56 unnecessary. We store the information in a field extending the
57 regular ELF linker hash table. */
58
59struct elf_lm32_dyn_relocs
60{
61 struct elf_lm32_dyn_relocs *next;
62
63 /* The input section of the reloc. */
64 asection *sec;
65
66 /* Total number of relocs copied for the input section. */
67 bfd_size_type count;
68
69 /* Number of pc-relative relocs copied for the input section. */
70 bfd_size_type pc_count;
71};
72
73/* lm32 ELF linker hash entry. */
74
75struct elf_lm32_link_hash_entry
76{
77 struct elf_link_hash_entry root;
78
79 /* Track dynamic relocs copied for this symbol. */
80 struct elf_lm32_dyn_relocs *dyn_relocs;
81};
82
83/* lm32 ELF linker hash table. */
84
85struct elf_lm32_link_hash_table
86{
87 struct elf_link_hash_table root;
88
89 /* Short-cuts to get to dynamic linker sections. */
84e94c90 90 asection *sfixup32;
84e94c90
NC		 91 asection *sdynbss;
92 asection *srelbss;
93
94 int relocs32;
95};
96
97/* Get the lm32 ELF linker hash table from a link_info structure. */
98
99#define lm32_elf_hash_table(p) \
4dfe6ac6
NC		 100 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
101 == LM32_ELF_DATA ? ((struct elf_lm32_link_hash_table *) ((p)->hash)) : NULL)
84e94c90
NC		 102
103#define lm32fdpic_got_section(info) \
ce558b89 104 (lm32_elf_hash_table (info)->root.sgot)
84e94c90 105#define lm32fdpic_gotrel_section(info) \
ce558b89 106 (lm32_elf_hash_table (info)->root.srelgot)
84e94c90
NC		 107#define lm32fdpic_fixup32_section(info) \
108 (lm32_elf_hash_table (info)->sfixup32)
109
110struct weak_symbol_list
111{
112 const char *name;
113 struct weak_symbol_list *next;
114};
115
116/* Create an entry in an lm32 ELF linker hash table. */
117
118static struct bfd_hash_entry *
119lm32_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
120 struct bfd_hash_table *table,
121 const char *string)
122{
123 struct elf_lm32_link_hash_entry *ret =
124 (struct elf_lm32_link_hash_entry *) entry;
125
126 /* Allocate the structure if it has not already been allocated by a
127 subclass. */
128 if (ret == NULL)
129 ret = bfd_hash_allocate (table,
130 sizeof (struct elf_lm32_link_hash_entry));
131 if (ret == NULL)
132 return NULL;
133
134 /* Call the allocation method of the superclass. */
135 ret = ((struct elf_lm32_link_hash_entry *)
136 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
137 table, string));
138 if (ret != NULL)
139 {
140 struct elf_lm32_link_hash_entry *eh;
141
142 eh = (struct elf_lm32_link_hash_entry *) ret;
143 eh->dyn_relocs = NULL;
144 }
145
146 return (struct bfd_hash_entry *) ret;
147}
148
149/* Create an lm32 ELF linker hash table. */
150
151static struct bfd_link_hash_table *
152lm32_elf_link_hash_table_create (bfd *abfd)
153{
154 struct elf_lm32_link_hash_table *ret;
155 bfd_size_type amt = sizeof (struct elf_lm32_link_hash_table);
156
7bf52ea2 157 ret = bfd_zmalloc (amt);
84e94c90
NC		 158 if (ret == NULL)
159 return NULL;
160
161 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
162 lm32_elf_link_hash_newfunc,
4dfe6ac6
NC		 163 sizeof (struct elf_lm32_link_hash_entry),
164 LM32_ELF_DATA))
84e94c90
NC		 165 {
166 free (ret);
167 return NULL;
168 }
169
84e94c90
NC		 170 return &ret->root.root;
171}
172
173/* Add a fixup to the ROFIXUP section. */
174
175static bfd_vma
176_lm32fdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma relocation)
177{
178 bfd_vma fixup_offset;
179
180 if (rofixup->flags & SEC_EXCLUDE)
181 return -1;
182
183 fixup_offset = rofixup->reloc_count * 4;
184 if (rofixup->contents)
185 {
186 BFD_ASSERT (fixup_offset < rofixup->size);
187 if (fixup_offset < rofixup->size)
188 bfd_put_32 (output_bfd, relocation, rofixup->contents + fixup_offset);
189 }
190 rofixup->reloc_count++;
191
192 return fixup_offset;
193}
194
84e94c90
NC		 195/* Create .rofixup sections in DYNOBJ, and set up
196 shortcuts to them in our hash table. */
197
198static bfd_boolean
199create_rofixup_section (bfd *dynobj, struct bfd_link_info *info)
200{
201 struct elf_lm32_link_hash_table *htab;
202 htab = lm32_elf_hash_table (info);
203
4dfe6ac6
NC		 204 if (htab == NULL)
205 return FALSE;
206
207 /* Fixup section for R_LM32_32 relocs. */
3d4d4302
AM		 208 lm32fdpic_fixup32_section (info)
209 = bfd_make_section_anyway_with_flags (dynobj,
210 ".rofixup",
211 (SEC_ALLOC
212 | SEC_LOAD
213 | SEC_HAS_CONTENTS
214 | SEC_IN_MEMORY
215 | SEC_LINKER_CREATED
216 | SEC_READONLY));
84e94c90 217 if (lm32fdpic_fixup32_section (info) == NULL
3d4d4302
AM		 218 || ! bfd_set_section_alignment (dynobj,
219 lm32fdpic_fixup32_section (info), 2))
84e94c90
NC		 220 return FALSE;
221
222 return TRUE;
223}
224
225static reloc_howto_type lm32_elf_howto_table [] =
226{
227 /* This reloc does nothing. */
228 HOWTO (R_LM32_NONE, /* type */
229 0, /* rightshift */
6346d5ca
AM		 230 3, /* size (0 = byte, 1 = short, 2 = long) */
231 0, /* bitsize */
84e94c90
NC		 232 FALSE, /* pc_relative */
233 0, /* bitpos */
6346d5ca 234 complain_overflow_dont, /* complain_on_overflow */
84e94c90
NC		 235 bfd_elf_generic_reloc, /* special_function */
236 "R_LM32_NONE", /* name */
237 FALSE, /* partial_inplace */
238 0, /* src_mask */
239 0, /* dst_mask */
240 FALSE), /* pcrel_offset */
241
242 /* An 8 bit absolute relocation. */
243 HOWTO (R_LM32_8, /* type */
244 0, /* rightshift */
245 0, /* size (0 = byte, 1 = short, 2 = long) */
246 8, /* bitsize */
247 FALSE, /* pc_relative */
248 0, /* bitpos */
249 complain_overflow_bitfield,/* complain_on_overflow */
250 bfd_elf_generic_reloc, /* special_function */
251 "R_LM32_8", /* name */
252 FALSE, /* partial_inplace */
253 0, /* src_mask */
254 0xff, /* dst_mask */
255 FALSE), /* pcrel_offset */
256
257 /* A 16 bit absolute relocation. */
258 HOWTO (R_LM32_16, /* type */
259 0, /* rightshift */
260 1, /* size (0 = byte, 1 = short, 2 = long) */
261 16, /* bitsize */
262 FALSE, /* pc_relative */
263 0, /* bitpos */
264 complain_overflow_bitfield,/* complain_on_overflow */
265 bfd_elf_generic_reloc, /* special_function */
266 "R_LM32_16", /* name */
267 FALSE, /* partial_inplace */
268 0, /* src_mask */
269 0xffff, /* dst_mask */
270 FALSE), /* pcrel_offset */
271
272 /* A 32 bit absolute relocation. */
273 HOWTO (R_LM32_32, /* type */
274 0, /* rightshift */
275 2, /* size (0 = byte, 1 = short, 2 = long) */
276 32, /* bitsize */
277 FALSE, /* pc_relative */
278 0, /* bitpos */
279 complain_overflow_bitfield,/* complain_on_overflow */
280 bfd_elf_generic_reloc, /* special_function */
281 "R_LM32_32", /* name */
282 FALSE, /* partial_inplace */
283 0, /* src_mask */
284 0xffffffff, /* dst_mask */
285 FALSE), /* pcrel_offset */
286
287 HOWTO (R_LM32_HI16, /* type */
288 16, /* rightshift */
289 2, /* size (0 = byte, 1 = short, 2 = long) */
290 16, /* bitsize */
291 FALSE, /* pc_relative */
292 0, /* bitpos */
293 complain_overflow_bitfield,/* complain_on_overflow */
294 bfd_elf_generic_reloc, /* special_function */
295 "R_LM32_HI16", /* name */
296 FALSE, /* partial_inplace */
297 0, /* src_mask */
298 0xffff, /* dst_mask */
299 FALSE), /* pcrel_offset */
300
301 HOWTO (R_LM32_LO16, /* type */
302 0, /* rightshift */
303 2, /* size (0 = byte, 1 = short, 2 = long) */
304 16, /* bitsize */
305 FALSE, /* pc_relative */
306 0, /* bitpos */
307 complain_overflow_dont, /* complain_on_overflow */
308 bfd_elf_generic_reloc, /* special_function */
309 "R_LM32_LO16", /* name */
310 FALSE, /* partial_inplace */
311 0, /* src_mask */
312 0xffff, /* dst_mask */
313 FALSE), /* pcrel_offset */
314
315 HOWTO (R_LM32_GPREL16, /* type */
316 0, /* rightshift */
317 2, /* size (0 = byte, 1 = short, 2 = long) */
318 16, /* bitsize */
319 FALSE, /* pc_relative */
320 0, /* bitpos */
321 complain_overflow_dont, /* complain_on_overflow */
322 lm32_elf_gprel_reloc, /* special_function */
323 "R_LM32_GPREL16", /* name */
324 FALSE, /* partial_inplace */
325 0, /* src_mask */
326 0xffff, /* dst_mask */
327 FALSE), /* pcrel_offset */
328
329 HOWTO (R_LM32_CALL, /* type */
330 2, /* rightshift */
331 2, /* size (0 = byte, 1 = short, 2 = long) */
332 26, /* bitsize */
333 TRUE, /* pc_relative */
334 0, /* bitpos */
335 complain_overflow_signed, /* complain_on_overflow */
336 bfd_elf_generic_reloc, /* special_function */
337 "R_LM32_CALL", /* name */
338 FALSE, /* partial_inplace */
339 0, /* src_mask */
340 0x3ffffff, /* dst_mask */
341 TRUE), /* pcrel_offset */
342
343 HOWTO (R_LM32_BRANCH, /* type */
344 2, /* rightshift */
345 2, /* size (0 = byte, 1 = short, 2 = long) */
346 16, /* bitsize */
347 TRUE, /* pc_relative */
348 0, /* bitpos */
349 complain_overflow_signed, /* complain_on_overflow */
350 bfd_elf_generic_reloc, /* special_function */
351 "R_LM32_BRANCH", /* name */
352 FALSE, /* partial_inplace */
353 0, /* src_mask */
354 0xffff, /* dst_mask */
355 TRUE), /* pcrel_offset */
356
357 /* GNU extension to record C++ vtable hierarchy. */
358 HOWTO (R_LM32_GNU_VTINHERIT, /* type */
359 0, /* rightshift */
360 2, /* size (0 = byte, 1 = short, 2 = long) */
361 0, /* bitsize */
362 FALSE, /* pc_relative */
363 0, /* bitpos */
364 complain_overflow_dont, /* complain_on_overflow */
365 NULL, /* special_function */
366 "R_LM32_GNU_VTINHERIT", /* name */
367 FALSE, /* partial_inplace */
368 0, /* src_mask */
369 0, /* dst_mask */
370 FALSE), /* pcrel_offset */
371
372 /* GNU extension to record C++ vtable member usage. */
373 HOWTO (R_LM32_GNU_VTENTRY, /* type */
374 0, /* rightshift */
375 2, /* size (0 = byte, 1 = short, 2 = long) */
376 0, /* bitsize */
377 FALSE, /* pc_relative */
378 0, /* bitpos */
379 complain_overflow_dont, /* complain_on_overflow */
380 _bfd_elf_rel_vtable_reloc_fn,/* special_function */
381 "R_LM32_GNU_VTENTRY", /* name */
382 FALSE, /* partial_inplace */
383 0, /* src_mask */
384 0, /* dst_mask */
385 FALSE), /* pcrel_offset */
386
387 HOWTO (R_LM32_16_GOT, /* type */
388 0, /* rightshift */
389 2, /* size (0 = byte, 1 = short, 2 = long) */
390 16, /* bitsize */
391 FALSE, /* pc_relative */
392 0, /* bitpos */
393 complain_overflow_signed, /* complain_on_overflow */
394 bfd_elf_generic_reloc, /* special_function */
395 "R_LM32_16_GOT", /* name */
396 FALSE, /* partial_inplace */
397 0, /* src_mask */
398 0xffff, /* dst_mask */
399 FALSE), /* pcrel_offset */
400
401 HOWTO (R_LM32_GOTOFF_HI16, /* type */
402 16, /* rightshift */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
404 16, /* bitsize */
405 FALSE, /* pc_relative */
406 0, /* bitpos */
407 complain_overflow_dont, /* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_LM32_GOTOFF_HI16", /* name */
410 FALSE, /* partial_inplace */
411 0xffff, /* src_mask */
412 0xffff, /* dst_mask */
413 FALSE), /* pcrel_offset */
414
415 HOWTO (R_LM32_GOTOFF_LO16, /* type */
416 0, /* rightshift */
417 2, /* size (0 = byte, 1 = short, 2 = long) */
418 16, /* bitsize */
419 FALSE, /* pc_relative */
420 0, /* bitpos */
421 complain_overflow_dont, /* complain_on_overflow */
422 bfd_elf_generic_reloc, /* special_function */
423 "R_LM32_GOTOFF_LO16", /* name */
424 FALSE, /* partial_inplace */
425 0xffff, /* src_mask */
426 0xffff, /* dst_mask */
427 FALSE), /* pcrel_offset */
428
429 HOWTO (R_LM32_COPY, /* type */
430 0, /* rightshift */
431 2, /* size (0 = byte, 1 = short, 2 = long) */
432 32, /* bitsize */
433 FALSE, /* pc_relative */
434 0, /* bitpos */
435 complain_overflow_bitfield, /* complain_on_overflow */
436 bfd_elf_generic_reloc, /* special_function */
437 "R_LM32_COPY", /* name */
438 FALSE, /* partial_inplace */
439 0xffffffff, /* src_mask */
440 0xffffffff, /* dst_mask */
441 FALSE), /* pcrel_offset */
442
443 HOWTO (R_LM32_GLOB_DAT, /* type */
444 0, /* rightshift */
445 2, /* size (0 = byte, 1 = short, 2 = long) */
446 32, /* bitsize */
447 FALSE, /* pc_relative */
448 0, /* bitpos */
449 complain_overflow_bitfield, /* complain_on_overflow */
450 bfd_elf_generic_reloc, /* special_function */
451 "R_LM32_GLOB_DAT", /* name */
452 FALSE, /* partial_inplace */
453 0xffffffff, /* src_mask */
454 0xffffffff, /* dst_mask */
455 FALSE), /* pcrel_offset */
456
457 HOWTO (R_LM32_JMP_SLOT, /* type */
458 0, /* rightshift */
459 2, /* size (0 = byte, 1 = short, 2 = long) */
460 32, /* bitsize */
461 FALSE, /* pc_relative */
462 0, /* bitpos */
463 complain_overflow_bitfield, /* complain_on_overflow */
464 bfd_elf_generic_reloc, /* special_function */
465 "R_LM32_JMP_SLOT", /* name */
466 FALSE, /* partial_inplace */
467 0xffffffff, /* src_mask */
468 0xffffffff, /* dst_mask */
469 FALSE), /* pcrel_offset */
470
471 HOWTO (R_LM32_RELATIVE, /* type */
472 0, /* rightshift */
473 2, /* size (0 = byte, 1 = short, 2 = long) */
474 32, /* bitsize */
475 FALSE, /* pc_relative */
476 0, /* bitpos */
477 complain_overflow_bitfield, /* complain_on_overflow */
478 bfd_elf_generic_reloc, /* special_function */
479 "R_LM32_RELATIVE", /* name */
480 FALSE, /* partial_inplace */
481 0xffffffff, /* src_mask */
482 0xffffffff, /* dst_mask */
483 FALSE), /* pcrel_offset */
484
485};
486
487/* Map BFD reloc types to lm32 ELF reloc types. */
488
489struct lm32_reloc_map
490{
491 bfd_reloc_code_real_type bfd_reloc_val;
492 unsigned char elf_reloc_val;
493};
494
495static const struct lm32_reloc_map lm32_reloc_map[] =
496{
497 { BFD_RELOC_NONE, R_LM32_NONE },
498 { BFD_RELOC_8, R_LM32_8 },
499 { BFD_RELOC_16, R_LM32_16 },
500 { BFD_RELOC_32, R_LM32_32 },
501 { BFD_RELOC_HI16, R_LM32_HI16 },
502 { BFD_RELOC_LO16, R_LM32_LO16 },
503 { BFD_RELOC_GPREL16, R_LM32_GPREL16 },
504 { BFD_RELOC_LM32_CALL, R_LM32_CALL },
505 { BFD_RELOC_LM32_BRANCH, R_LM32_BRANCH },
506 { BFD_RELOC_VTABLE_INHERIT, R_LM32_GNU_VTINHERIT },
507 { BFD_RELOC_VTABLE_ENTRY, R_LM32_GNU_VTENTRY },
508 { BFD_RELOC_LM32_16_GOT, R_LM32_16_GOT },
509 { BFD_RELOC_LM32_GOTOFF_HI16, R_LM32_GOTOFF_HI16 },
510 { BFD_RELOC_LM32_GOTOFF_LO16, R_LM32_GOTOFF_LO16 },
511 { BFD_RELOC_LM32_COPY, R_LM32_COPY },
512 { BFD_RELOC_LM32_GLOB_DAT, R_LM32_GLOB_DAT },
513 { BFD_RELOC_LM32_JMP_SLOT, R_LM32_JMP_SLOT },
514 { BFD_RELOC_LM32_RELATIVE, R_LM32_RELATIVE },
515};
516
517static reloc_howto_type *
518lm32_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
519 bfd_reloc_code_real_type code)
520{
521 unsigned int i;
522
523 for (i = 0; i < sizeof (lm32_reloc_map) / sizeof (lm32_reloc_map[0]); i++)
524 if (lm32_reloc_map[i].bfd_reloc_val == code)
525 return &lm32_elf_howto_table[lm32_reloc_map[i].elf_reloc_val];
526 return NULL;
527}
528
529static reloc_howto_type *
530lm32_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
531 const char *r_name)
532{
533 unsigned int i;
534
535 for (i = 0;
536 i < sizeof (lm32_elf_howto_table) / sizeof (lm32_elf_howto_table[0]);
537 i++)
538 if (lm32_elf_howto_table[i].name != NULL
539 && strcasecmp (lm32_elf_howto_table[i].name, r_name) == 0)
540 return &lm32_elf_howto_table[i];
541
542 return NULL;
543}
544
545
546/* Set the howto pointer for an Lattice Mico32 ELF reloc. */
547
548static void
549lm32_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
550 arelent *cache_ptr,
551 Elf_Internal_Rela *dst)
552{
553 unsigned int r_type;
554
555 r_type = ELF32_R_TYPE (dst->r_info);
5860e3f8
NC		 556 if (r_type >= (unsigned int) R_LM32_max)
557 {
695344c0 558 /* xgettext:c-format */
64d29018 559 _bfd_error_handler (_("%B: invalid LM32 reloc number: %d"), abfd, r_type);
5860e3f8
NC		 560 r_type = 0;
561 }
84e94c90
NC		 562 cache_ptr->howto = &lm32_elf_howto_table[r_type];
563}
564
565/* Set the right machine number for an Lattice Mico32 ELF file. */
566
567static bfd_boolean
568lm32_elf_object_p (bfd *abfd)
569{
570 return bfd_default_set_arch_mach (abfd, bfd_arch_lm32, bfd_mach_lm32);
571}
572
573/* Set machine type flags just before file is written out. */
574
575static void
576lm32_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
577{
578 elf_elfheader (abfd)->e_machine = EM_LATTICEMICO32;
579 elf_elfheader (abfd)->e_flags &=~ EF_LM32_MACH;
580 switch (bfd_get_mach (abfd))
581 {
582 case bfd_mach_lm32:
583 elf_elfheader (abfd)->e_flags |= E_LM32_MACH;
584 break;
585 default:
586 abort ();
587 }
588}
589
590/* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
591 dangerous relocation. */
592
593static bfd_boolean
594lm32_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
595{
596 unsigned int count;
597 asymbol **sym;
598 unsigned int i;
599
600 /* If we've already figured out what GP will be, just return it. */
601 *pgp = _bfd_get_gp_value (output_bfd);
602 if (*pgp)
603 return TRUE;
604
605 count = bfd_get_symcount (output_bfd);
606 sym = bfd_get_outsymbols (output_bfd);
607
608 /* The linker script will have created a symbol named `_gp' with the
609 appropriate value. */
610 if (sym == NULL)
611 i = count;
612 else
613 {
614 for (i = 0; i < count; i++, sym++)
615 {
616 const char *name;
617
618 name = bfd_asymbol_name (*sym);
619 if (*name == '_' && strcmp (name, "_gp") == 0)
620 {
621 *pgp = bfd_asymbol_value (*sym);
622 _bfd_set_gp_value (output_bfd, *pgp);
623 break;
624 }
625 }
626 }
627
628 if (i >= count)
629 {
630 /* Only get the error once. */
631 *pgp = 4;
632 _bfd_set_gp_value (output_bfd, *pgp);
633 return FALSE;
634 }
635
636 return TRUE;
637}
638
639/* We have to figure out the gp value, so that we can adjust the
640 symbol value correctly. We look up the symbol _gp in the output
641 BFD. If we can't find it, we're stuck. We cache it in the ELF
642 target data. We don't need to adjust the symbol value for an
643 external symbol if we are producing relocatable output. */
644
645static bfd_reloc_status_type
646lm32_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
647 char **error_message, bfd_vma *pgp)
648{
649 if (bfd_is_und_section (symbol->section) && !relocatable)
650 {
651 *pgp = 0;
652 return bfd_reloc_undefined;
653 }
654
655 *pgp = _bfd_get_gp_value (output_bfd);
656 if (*pgp == 0 && (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0))
657 {
658 if (relocatable)
659 {
660 /* Make up a value. */
661 *pgp = symbol->section->output_section->vma + 0x4000;
662 _bfd_set_gp_value (output_bfd, *pgp);
663 }
664 else if (!lm32_elf_assign_gp (output_bfd, pgp))
665 {
666 *error_message =
667 (char *)
668 _("global pointer relative relocation when _gp not defined");
669 return bfd_reloc_dangerous;
670 }
671 }
672
673 return bfd_reloc_ok;
674}
675
676static bfd_reloc_status_type
677lm32_elf_do_gprel_relocate (bfd *abfd,
678 reloc_howto_type *howto,
679 asection *input_section ATTRIBUTE_UNUSED,
680 bfd_byte *data,
681 bfd_vma offset,
682 bfd_vma symbol_value,
683 bfd_vma addend)
684{
685 return _bfd_final_link_relocate (howto, abfd, input_section,
686 data, offset, symbol_value, addend);
687}
688
689static bfd_reloc_status_type
690lm32_elf_gprel_reloc (bfd *abfd,
691 arelent *reloc_entry,
692 asymbol *symbol,
693 void *data,
694 asection *input_section,
695 bfd *output_bfd,
696 char **msg)
697{
698 bfd_vma relocation;
699 bfd_vma gp;
700 bfd_reloc_status_type r;
701
702 if (output_bfd != (bfd *) NULL
703 && (symbol->flags & BSF_SECTION_SYM) == 0
704 && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0))
705 {
706 reloc_entry->address += input_section->output_offset;
707 return bfd_reloc_ok;
708 }
709
710 if (output_bfd != NULL)
711 return bfd_reloc_ok;
712
713 relocation = symbol->value
714 + symbol->section->output_section->vma + symbol->section->output_offset;
715
716 if ((r =
717 lm32_elf_final_gp (abfd, symbol, FALSE, msg, &gp)) == bfd_reloc_ok)
718 {
719 relocation = relocation + reloc_entry->addend - gp;
720 reloc_entry->addend = 0;
721 if ((signed) relocation < -32768 || (signed) relocation > 32767)
722 {
723 *msg = _("global pointer relative address out of range");
724 r = bfd_reloc_outofrange;
725 }
726 else
727 {
728 r = lm32_elf_do_gprel_relocate (abfd, reloc_entry->howto,
729 input_section,
730 data, reloc_entry->address,
731 relocation, reloc_entry->addend);
732 }
733 }
734
735 return r;
736}
737
738/* Find the segment number in which OSEC, and output section, is
739 located. */
740
741static unsigned
742_lm32fdpic_osec_to_segment (bfd *output_bfd, asection *osec)
743{
744 struct elf_segment_map *m;
745 Elf_Internal_Phdr *p;
746
747 /* Find the segment that contains the output_section. */
12bd6957 748 for (m = elf_seg_map (output_bfd), p = elf_tdata (output_bfd)->phdr;
84e94c90
NC		 749 m != NULL;
750 m = m->next, p++)
751 {
752 int i;
753
754 for (i = m->count - 1; i >= 0; i--)
755 if (m->sections[i] == osec)
756 break;
757
758 if (i >= 0)
759 break;
760 }
761
762 return p - elf_tdata (output_bfd)->phdr;
763}
764
765/* Determine if an output section is read-only. */
766
767inline static bfd_boolean
768_lm32fdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
769{
770 unsigned seg = _lm32fdpic_osec_to_segment (output_bfd, osec);
771
772 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
773}
774
775/* Relocate a section */
776
777static bfd_boolean
778lm32_elf_relocate_section (bfd *output_bfd,
779 struct bfd_link_info *info,
780 bfd *input_bfd,
781 asection *input_section,
782 bfd_byte *contents,
783 Elf_Internal_Rela *relocs,
784 Elf_Internal_Sym *local_syms,
785 asection **local_sections)
786{
787 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
788 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
789 Elf_Internal_Rela *rel, *relend;
84e94c90 790 struct elf_lm32_link_hash_table *htab = lm32_elf_hash_table (info);
84e94c90 791 bfd_vma *local_got_offsets;
c7e2358a 792 asection *sgot;
84e94c90 793
4dfe6ac6
NC		 794 if (htab == NULL)
795 return FALSE;
796
84e94c90
NC		 797 local_got_offsets = elf_local_got_offsets (input_bfd);
798
ce558b89 799 sgot = htab->root.sgot;
84e94c90
NC		 800
801 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
802 sym_hashes = elf_sym_hashes (input_bfd);
803
804 rel = relocs;
805 relend = relocs + input_section->reloc_count;
806 for (; rel < relend; rel++)
807 {
808 reloc_howto_type *howto;
809 unsigned int r_type;
810 unsigned long r_symndx;
811 Elf_Internal_Sym *sym;
812 asection *sec;
813 struct elf_link_hash_entry *h;
814 bfd_vma relocation;
815 bfd_vma gp;
816 bfd_reloc_status_type r;
817 const char *name = NULL;
84e94c90
NC		 818
819 r_symndx = ELF32_R_SYM (rel->r_info);
820 r_type = ELF32_R_TYPE (rel->r_info);
821
822 if (r_type == R_LM32_GNU_VTENTRY
823 || r_type == R_LM32_GNU_VTINHERIT )
824 continue;
825
826 h = NULL;
827 sym = NULL;
828 sec = NULL;
829
830 howto = lm32_elf_howto_table + r_type;
831
832 if (r_symndx < symtab_hdr->sh_info)
833 {
834 /* It's a local symbol. */
835 sym = local_syms + r_symndx;
c7e2358a 836 sec = local_sections[r_symndx];
84e94c90
NC		 837 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
838 name = bfd_elf_string_from_elf_section
839 (input_bfd, symtab_hdr->sh_link, sym->st_name);
840 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
841 }
842 else
843 {
844 /* It's a global symbol. */
845 bfd_boolean unresolved_reloc;
62d887d4 846 bfd_boolean warned, ignored;
84e94c90
NC		 847
848 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
849 r_symndx, symtab_hdr, sym_hashes,
850 h, sec, relocation,
62d887d4 851 unresolved_reloc, warned, ignored);
84e94c90
NC		 852 name = h->root.root.string;
853 }
854
dbaa2011 855 if (sec != NULL && discarded_section (sec))
e4067dbb 856 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 857 rel, 1, relend, howto, 0, contents);
84e94c90 858
0e1862bb 859 if (bfd_link_relocatable (info))
84e94c90
NC		 860 {
861 /* This is a relocatable link. We don't have to change
862 anything, unless the reloc is against a section symbol,
863 in which case we have to adjust according to where the
864 section symbol winds up in the output section. */
865 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
866 continue;
867
868 /* If partial_inplace, we need to store any additional addend
869 back in the section. */
870 if (! howto->partial_inplace)
871 continue;
872
873 /* Shouldn't reach here. */
874 abort ();
875 r = bfd_reloc_ok;
876 }
877 else
878 {
879 switch (howto->type)
880 {
881 case R_LM32_GPREL16:
882 if (!lm32_elf_assign_gp (output_bfd, &gp))
883 r = bfd_reloc_dangerous;
884 else
885 {
886 relocation = relocation + rel->r_addend - gp;
887 rel->r_addend = 0;
888 if ((signed)relocation < -32768 || (signed)relocation > 32767)
889 r = bfd_reloc_outofrange;
890 else
891 {
892 r = _bfd_final_link_relocate (howto, input_bfd,
893 input_section, contents,
894 rel->r_offset, relocation,
895 rel->r_addend);
896 }
897 }
898 break;
899 case R_LM32_16_GOT:
900 /* Relocation is to the entry for this symbol in the global
901 offset table. */
902 BFD_ASSERT (sgot != NULL);
903 if (h != NULL)
904 {
905 bfd_boolean dyn;
906 bfd_vma off;
907
908 off = h->got.offset;
909 BFD_ASSERT (off != (bfd_vma) -1);
910
911 dyn = htab->root.dynamic_sections_created;
0e1862bb
L		 912 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
913 bfd_link_pic (info),
914 h)
915 || (bfd_link_pic (info)
84e94c90
NC		 916 && (info->symbolic
917 || h->dynindx == -1
918 || h->forced_local)
919 && h->def_regular))
920 {
921 /* This is actually a static link, or it is a
922 -Bsymbolic link and the symbol is defined
923 locally, or the symbol was forced to be local
924 because of a version file. We must initialize
925 this entry in the global offset table. Since the
926 offset must always be a multiple of 4, we use the
927 least significant bit to record whether we have
928 initialized it already.
929
930 When doing a dynamic link, we create a .rela.got
931 relocation entry to initialize the value. This
932 is done in the finish_dynamic_symbol routine. */
933 if ((off & 1) != 0)
934 off &= ~1;
935 else
936 {
937 /* Write entry in GOT */
938 bfd_put_32 (output_bfd, relocation,
939 sgot->contents + off);
940 /* Create entry in .rofixup pointing to GOT entry. */
941 if (IS_FDPIC (output_bfd) && h->root.type != bfd_link_hash_undefweak)
942 {
943 _lm32fdpic_add_rofixup (output_bfd,
944 lm32fdpic_fixup32_section
945 (info),
946 sgot->output_section->vma
947 + sgot->output_offset
948 + off);
949 }
950 /* Mark GOT entry as having been written. */
951 h->got.offset |= 1;
952 }
953 }
954
955 relocation = sgot->output_offset + off;
956 }
957 else
958 {
959 bfd_vma off;
960 bfd_byte *loc;
961
962 BFD_ASSERT (local_got_offsets != NULL
963 && local_got_offsets[r_symndx] != (bfd_vma) -1);
964
965 /* Get offset into GOT table. */
966 off = local_got_offsets[r_symndx];
967
968 /* The offset must always be a multiple of 4. We use
969 the least significant bit to record whether we have
970 already processed this entry. */
971 if ((off & 1) != 0)
972 off &= ~1;
973 else
974 {
975 /* Write entry in GOT. */
976 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
977 /* Create entry in .rofixup pointing to GOT entry. */
978 if (IS_FDPIC (output_bfd))
979 {
980 _lm32fdpic_add_rofixup (output_bfd,
981 lm32fdpic_fixup32_section
982 (info),
983 sgot->output_section->vma
984 + sgot->output_offset
985 + off);
986 }
987
0e1862bb 988 if (bfd_link_pic (info))
84e94c90
NC		 989 {
990 asection *srelgot;
991 Elf_Internal_Rela outrel;
992
993 /* We need to generate a R_LM32_RELATIVE reloc
994 for the dynamic linker. */
ce558b89 995 srelgot = htab->root.srelgot;
84e94c90
NC		 996 BFD_ASSERT (srelgot != NULL);
997
998 outrel.r_offset = (sgot->output_section->vma
999 + sgot->output_offset
1000 + off);
1001 outrel.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
1002 outrel.r_addend = relocation;
1003 loc = srelgot->contents;
1004 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
1005 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
1006 ++srelgot->reloc_count;
1007 }
1008
1009 local_got_offsets[r_symndx] |= 1;
1010 }
1011
1012
1013 relocation = sgot->output_offset + off;
1014 }
1015
1016 /* Addend should be zero. */
1017 if (rel->r_addend != 0)
4eca0228 1018 _bfd_error_handler (_("internal error: addend should be zero for R_LM32_16_GOT"));
84e94c90
NC		 1019
1020 r = _bfd_final_link_relocate (howto,
1021 input_bfd,
1022 input_section,
1023 contents,
1024 rel->r_offset,
1025 relocation,
1026 rel->r_addend);
1027 break;
1028
1029 case R_LM32_GOTOFF_LO16:
1030 case R_LM32_GOTOFF_HI16:
1031 /* Relocation is offset from GOT. */
1032 BFD_ASSERT (sgot != NULL);
1033 relocation -= sgot->output_section->vma;
1034 /* Account for sign-extension. */
1035 if ((r_type == R_LM32_GOTOFF_HI16)
1036 && ((relocation + rel->r_addend) & 0x8000))
1037 rel->r_addend += 0x10000;
1038 r = _bfd_final_link_relocate (howto,
1039 input_bfd,
1040 input_section,
1041 contents,
1042 rel->r_offset,
1043 relocation,
1044 rel->r_addend);
1045 break;
1046
1047 case R_LM32_32:
1048 if (IS_FDPIC (output_bfd))
1049 {
1050 if ((!h) || (h && h->root.type != bfd_link_hash_undefweak))
1051 {
1052 /* Only create .rofixup entries for relocs in loadable sections. */
1053 if ((bfd_get_section_flags (output_bfd, input_section->output_section)
1054 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
1055
1056 {
1057 /* Check address to be modified is writable. */
1058 if (_lm32fdpic_osec_readonly_p (output_bfd,
1059 input_section
1060 ->output_section))
1061 {
1062 info->callbacks->warning
1063 (info,
1064 _("cannot emit dynamic relocations in read-only section"),
1065 name, input_bfd, input_section, rel->r_offset);
1066 return FALSE;
1067 }
1068 /* Create entry in .rofixup section. */
1069 _lm32fdpic_add_rofixup (output_bfd,
1070 lm32fdpic_fixup32_section (info),
1071 input_section->output_section->vma
1072 + input_section->output_offset
1073 + rel->r_offset);
1074 }
1075 }
1076 }
1077 /* Fall through. */
1078
1079 default:
1080 r = _bfd_final_link_relocate (howto,
1081 input_bfd,
1082 input_section,
1083 contents,
1084 rel->r_offset,
1085 relocation,
1086 rel->r_addend);
1087 break;
1088 }
1089 }
1090
1091 if (r != bfd_reloc_ok)
1092 {
84e94c90
NC		 1093 const char *msg = NULL;
1094 arelent bfd_reloc;
84e94c90
NC		 1095
1096 lm32_info_to_howto_rela (input_bfd, &bfd_reloc, rel);
1097 howto = bfd_reloc.howto;
1098
1099 if (h != NULL)
1100 name = h->root.root.string;
1101 else
1102 {
1103 name = (bfd_elf_string_from_elf_section
1104 (input_bfd, symtab_hdr->sh_link, sym->st_name));
1105 if (name == NULL || *name == '\0')
1106 name = bfd_section_name (input_bfd, sec);
1107 }
1108
1109 switch (r)
1110 {
1111 case bfd_reloc_overflow:
1112 if ((h != NULL)
1113 && (h->root.type == bfd_link_hash_undefweak))
1114 break;
1a72702b
AM		 1115 (*info->callbacks->reloc_overflow)
1116 (info, (h ? &h->root : NULL), name, howto->name,
1117 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
84e94c90
NC		 1118 break;
1119
1120 case bfd_reloc_undefined:
1a72702b
AM		 1121 (*info->callbacks->undefined_symbol)
1122 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
84e94c90
NC		 1123 break;
1124
1125 case bfd_reloc_outofrange:
1126 msg = _("internal error: out of range error");
1127 goto common_error;
1128
1129 case bfd_reloc_notsupported:
1130 msg = _("internal error: unsupported relocation error");
1131 goto common_error;
1132
1133 case bfd_reloc_dangerous:
1134 msg = _("internal error: dangerous error");
1135 goto common_error;
1136
1137 default:
1138 msg = _("internal error: unknown error");
1139 /* fall through */
1140
1141 common_error:
1a72702b
AM		 1142 (*info->callbacks->warning) (info, msg, name, input_bfd,
1143 input_section, rel->r_offset);
84e94c90
NC		 1144 break;
1145 }
1146 }
1147 }
1148
1149 return TRUE;
1150}
1151
1152static asection *
1153lm32_elf_gc_mark_hook (asection *sec,
1154 struct bfd_link_info *info,
1155 Elf_Internal_Rela *rel,
1156 struct elf_link_hash_entry *h,
1157 Elf_Internal_Sym *sym)
1158{
1159 if (h != NULL)
1160 switch (ELF32_R_TYPE (rel->r_info))
1161 {
1162 case R_LM32_GNU_VTINHERIT:
1163 case R_LM32_GNU_VTENTRY:
1164 return NULL;
1165 }
1166
1167 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1168}
1169
1170static bfd_boolean
1171lm32_elf_gc_sweep_hook (bfd *abfd,
1172 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1173 asection *sec,
1174 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
1175{
1176 /* Update the got entry reference counts for the section being removed. */
1177 Elf_Internal_Shdr *symtab_hdr;
1178 struct elf_link_hash_entry **sym_hashes;
1179 bfd_signed_vma *local_got_refcounts;
1180 const Elf_Internal_Rela *rel, *relend;
1181
1182 elf_section_data (sec)->local_dynrel = NULL;
1183
1184 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1185 sym_hashes = elf_sym_hashes (abfd);
1186 local_got_refcounts = elf_local_got_refcounts (abfd);
1187
1188 relend = relocs + sec->reloc_count;
1189 for (rel = relocs; rel < relend; rel++)
1190 {
1191 unsigned long r_symndx;
1192 struct elf_link_hash_entry *h = NULL;
1193
1194 r_symndx = ELF32_R_SYM (rel->r_info);
1195 if (r_symndx >= symtab_hdr->sh_info)
1196 {
1197 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1198 while (h->root.type == bfd_link_hash_indirect
1199 || h->root.type == bfd_link_hash_warning)
1200 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1201 }
1202
1203 switch (ELF32_R_TYPE (rel->r_info))
1204 {
1205 case R_LM32_16_GOT:
1206 if (h != NULL)
1207 {
1208 if (h->got.refcount > 0)
1209 h->got.refcount--;
1210 }
1211 else
1212 {
1213 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
1214 local_got_refcounts[r_symndx]--;
1215 }
1216 break;
1217
1218 default:
1219 break;
1220 }
1221 }
1222 return TRUE;
1223}
1224
1225/* Look through the relocs for a section during the first phase. */
1226
1227static bfd_boolean
1228lm32_elf_check_relocs (bfd *abfd,
1229 struct bfd_link_info *info,
1230 asection *sec,
1231 const Elf_Internal_Rela *relocs)
1232{
1233 Elf_Internal_Shdr *symtab_hdr;
1234 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
1235 const Elf_Internal_Rela *rel;
1236 const Elf_Internal_Rela *rel_end;
1237 struct elf_lm32_link_hash_table *htab;
1238 bfd *dynobj;
84e94c90 1239
0e1862bb 1240 if (bfd_link_relocatable (info))
84e94c90
NC		 1241 return TRUE;
1242
84e94c90
NC		 1243 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1244 sym_hashes = elf_sym_hashes (abfd);
1245 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
1246 if (!elf_bad_symtab (abfd))
1247 sym_hashes_end -= symtab_hdr->sh_info;
1248
1249 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 1250 if (htab == NULL)
1251 return FALSE;
1252
84e94c90 1253 dynobj = htab->root.dynobj;
84e94c90
NC		 1254
1255 rel_end = relocs + sec->reloc_count;
1256 for (rel = relocs; rel < rel_end; rel++)
1257 {
1258 int r_type;
1259 struct elf_link_hash_entry *h;
1260 unsigned long r_symndx;
1261
1262 r_symndx = ELF32_R_SYM (rel->r_info);
1263 r_type = ELF32_R_TYPE (rel->r_info);
1264 if (r_symndx < symtab_hdr->sh_info)
1265 h = NULL;
1266 else
1267 {
1268 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1269 while (h->root.type == bfd_link_hash_indirect
1270 || h->root.type == bfd_link_hash_warning)
1271 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM		 1272
1273 /* PR15323, ref flags aren't set for references in the same
1274 object. */
1275 h->root.non_ir_ref = 1;
84e94c90
NC		 1276 }
1277
1278 /* Some relocs require a global offset table. */
ce558b89 1279 if (htab->root.sgot == NULL)
84e94c90
NC		 1280 {
1281 switch (r_type)
1282 {
1283 case R_LM32_16_GOT:
1284 case R_LM32_GOTOFF_HI16:
1285 case R_LM32_GOTOFF_LO16:
1286 if (dynobj == NULL)
1287 htab->root.dynobj = dynobj = abfd;
ce558b89 1288 if (!_bfd_elf_create_got_section (dynobj, info))
84e94c90
NC		 1289 return FALSE;
1290 break;
1291 }
1292 }
1293
1294 /* Some relocs require a rofixup table. */
1295 if (IS_FDPIC (abfd))
1296 {
1297 switch (r_type)
1298 {
1299 case R_LM32_32:
1300 /* FDPIC requires a GOT if there is a .rofixup section
1301 (Normal ELF doesn't). */
1302 if (dynobj == NULL)
1303 htab->root.dynobj = dynobj = abfd;
ce558b89 1304 if (!_bfd_elf_create_got_section (dynobj, info))
84e94c90
NC		 1305 return FALSE;
1306 /* Create .rofixup section */
1307 if (htab->sfixup32 == NULL)
1308 {
3d4d4302 1309 if (! create_rofixup_section (dynobj, info))
84e94c90
NC		 1310 return FALSE;
1311 }
1312 break;
1313 case R_LM32_16_GOT:
1314 case R_LM32_GOTOFF_HI16:
1315 case R_LM32_GOTOFF_LO16:
1316 /* Create .rofixup section. */
1317 if (htab->sfixup32 == NULL)
1318 {
3d4d4302
AM		 1319 if (dynobj == NULL)
1320 htab->root.dynobj = dynobj = abfd;
1321 if (! create_rofixup_section (dynobj, info))
84e94c90
NC		 1322 return FALSE;
1323 }
1324 break;
1325 }
1326 }
1327
1328 switch (r_type)
1329 {
1330 case R_LM32_16_GOT:
1331 if (h != NULL)
1332 h->got.refcount += 1;
1333 else
1334 {
1335 bfd_signed_vma *local_got_refcounts;
1336
1337 /* This is a global offset table entry for a local symbol. */
1338 local_got_refcounts = elf_local_got_refcounts (abfd);
1339 if (local_got_refcounts == NULL)
1340 {
1341 bfd_size_type size;
1342
1343 size = symtab_hdr->sh_info;
1344 size *= sizeof (bfd_signed_vma);
1345 local_got_refcounts = bfd_zalloc (abfd, size);
1346 if (local_got_refcounts == NULL)
1347 return FALSE;
1348 elf_local_got_refcounts (abfd) = local_got_refcounts;
1349 }
1350 local_got_refcounts[r_symndx] += 1;
1351 }
1352 break;
1353
1354 /* This relocation describes the C++ object vtable hierarchy.
1355 Reconstruct it for later use during GC. */
1356 case R_LM32_GNU_VTINHERIT:
1357 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1358 return FALSE;
1359 break;
1360
1361 /* This relocation describes which C++ vtable entries are actually
1362 used. Record for later use during GC. */
1363 case R_LM32_GNU_VTENTRY:
1364 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1365 return FALSE;
1366 break;
1367
1368 }
1369 }
1370
1371 return TRUE;
1372}
1373
1374/* Finish up the dynamic sections. */
1375
1376static bfd_boolean
1377lm32_elf_finish_dynamic_sections (bfd *output_bfd,
1378 struct bfd_link_info *info)
1379{
1380 struct elf_lm32_link_hash_table *htab;
1381 bfd *dynobj;
1382 asection *sdyn;
1383 asection *sgot;
1384
1385 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 1386 if (htab == NULL)
1387 return FALSE;
1388
84e94c90
NC		 1389 dynobj = htab->root.dynobj;
1390
ce558b89 1391 sgot = htab->root.sgotplt;
3d4d4302 1392 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
84e94c90
NC		 1393
1394 if (htab->root.dynamic_sections_created)
1395 {
1396 asection *splt;
1397 Elf32_External_Dyn *dyncon, *dynconend;
1398
1399 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1400
1401 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1402 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1403
1404 for (; dyncon < dynconend; dyncon++)
1405 {
1406 Elf_Internal_Dyn dyn;
84e94c90
NC		 1407 asection *s;
1408
1409 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1410
1411 switch (dyn.d_tag)
1412 {
1413 default:
1414 break;
1415
1416 case DT_PLTGOT:
ce558b89 1417 s = htab->root.sgotplt;
84e94c90
NC		 1418 goto get_vma;
1419 case DT_JMPREL:
ce558b89 1420 s = htab->root.srelplt;
84e94c90 1421 get_vma:
4ade44b7 1422 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
84e94c90
NC		 1423 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1424 break;
1425
1426 case DT_PLTRELSZ:
ce558b89 1427 s = htab->root.srelplt;
84e94c90
NC		 1428 dyn.d_un.d_val = s->size;
1429 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1430 break;
1431
1432 case DT_RELASZ:
1433 /* My reading of the SVR4 ABI indicates that the
1434 procedure linkage table relocs (DT_JMPREL) should be
1435 included in the overall relocs (DT_RELA). This is
1436 what Solaris does. However, UnixWare can not handle
1437 that case. Therefore, we override the DT_RELASZ entry
1438 here to make it not include the JMPREL relocs. Since
1439 the linker script arranges for .rela.plt to follow all
1440 other relocation sections, we don't have to worry
1441 about changing the DT_RELA entry. */
ce558b89 1442 if (htab->root.srelplt != NULL)
84e94c90 1443 {
ce558b89 1444 s = htab->root.srelplt;
84e94c90
NC		 1445 dyn.d_un.d_val -= s->size;
1446 }
1447 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1448 break;
1449 }
1450 }
1451
1452 /* Fill in the first entry in the procedure linkage table. */
ce558b89 1453 splt = htab->root.splt;
84e94c90
NC		 1454 if (splt && splt->size > 0)
1455 {
0e1862bb 1456 if (bfd_link_pic (info))
84e94c90
NC		 1457 {
1458 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
1459 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
1460 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
1461 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
1462 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
1463 }
1464 else
1465 {
1466 unsigned long addr;
1467 /* addr = .got + 4 */
1468 addr = sgot->output_section->vma + sgot->output_offset + 4;
1469 bfd_put_32 (output_bfd,
1470 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1471 splt->contents);
1472 bfd_put_32 (output_bfd,
1473 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1474 splt->contents + 4);
1475 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1476 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1477 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1478 }
1479
1480 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
1481 PLT_ENTRY_SIZE;
1482 }
1483 }
1484
1485 /* Fill in the first three entries in the global offset table. */
1486 if (sgot && sgot->size > 0)
1487 {
1488 if (sdyn == NULL)
1489 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1490 else
1491 bfd_put_32 (output_bfd,
1492 sdyn->output_section->vma + sdyn->output_offset,
1493 sgot->contents);
1494 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1495 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1496
1497 /* FIXME: This can be null if create_dynamic_sections wasn't called. */
1498 if (elf_section_data (sgot->output_section) != NULL)
1499 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1500 }
1501
1502 if (lm32fdpic_fixup32_section (info))
1503 {
1504 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
1505 bfd_vma got_value = hgot->root.u.def.value
1506 + hgot->root.u.def.section->output_section->vma
1507 + hgot->root.u.def.section->output_offset;
1508 struct bfd_link_hash_entry *hend;
1509
1510 /* Last entry is pointer to GOT. */
1511 _lm32fdpic_add_rofixup (output_bfd, lm32fdpic_fixup32_section (info), got_value);
1512
1513 /* Check we wrote enough entries. */
1514 if (lm32fdpic_fixup32_section (info)->size
1515 != (lm32fdpic_fixup32_section (info)->reloc_count * 4))
1516 {
4eca0228 1517 _bfd_error_handler
84e94c90
NC		 1518 ("LINKER BUG: .rofixup section size mismatch: size/4 %d != relocs %d",
1519 lm32fdpic_fixup32_section (info)->size/4,
1520 lm32fdpic_fixup32_section (info)->reloc_count);
1521 return FALSE;
1522 }
1523
1524 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
1525 FALSE, FALSE, TRUE);
1526 if (hend
1527 && (hend->type == bfd_link_hash_defined
1528 || hend->type == bfd_link_hash_defweak))
1529 {
1530 bfd_vma value =
1531 lm32fdpic_fixup32_section (info)->output_section->vma
1532 + lm32fdpic_fixup32_section (info)->output_offset
1533 + lm32fdpic_fixup32_section (info)->size
1534 - hend->u.def.section->output_section->vma
1535 - hend->u.def.section->output_offset;
1536 BFD_ASSERT (hend->u.def.value == value);
1537 if (hend->u.def.value != value)
1538 {
4eca0228 1539 _bfd_error_handler
84e94c90
NC		 1540 ("LINKER BUG: .rofixup section hend->u.def.value != value: %ld != %ld", hend->u.def.value, value);
1541 return FALSE;
1542 }
1543 }
1544 }
1545
1546 return TRUE;
1547}
1548
1549/* Finish up dynamic symbol handling. We set the contents of various
1550 dynamic sections here. */
1551
1552static bfd_boolean
1553lm32_elf_finish_dynamic_symbol (bfd *output_bfd,
1554 struct bfd_link_info *info,
1555 struct elf_link_hash_entry *h,
1556 Elf_Internal_Sym *sym)
1557{
1558 struct elf_lm32_link_hash_table *htab;
84e94c90
NC		 1559 bfd_byte *loc;
1560
1561 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 1562 if (htab == NULL)
1563 return FALSE;
1564
84e94c90
NC		 1565 if (h->plt.offset != (bfd_vma) -1)
1566 {
1567 asection *splt;
1568 asection *sgot;
1569 asection *srela;
1570
1571 bfd_vma plt_index;
1572 bfd_vma got_offset;
1573 Elf_Internal_Rela rela;
1574
1575 /* This symbol has an entry in the procedure linkage table. Set
1576 it up. */
1577 BFD_ASSERT (h->dynindx != -1);
1578
ce558b89
AM		 1579 splt = htab->root.splt;
1580 sgot = htab->root.sgotplt;
1581 srela = htab->root.srelplt;
84e94c90
NC		 1582 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1583
1584 /* Get the index in the procedure linkage table which
1585 corresponds to this symbol. This is the index of this symbol
1586 in all the symbols for which we are making plt entries. The
1587 first entry in the procedure linkage table is reserved. */
1588 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1589
1590 /* Get the offset into the .got table of the entry that
1591 corresponds to this function. Each .got entry is 4 bytes.
1592 The first three are reserved. */
1593 got_offset = (plt_index + 3) * 4;
1594
1595 /* Fill in the entry in the procedure linkage table. */
0e1862bb 1596 if (! bfd_link_pic (info))
84e94c90
NC		 1597 {
1598 /* TODO */
1599 }
1600 else
1601 {
1602 /* TODO */
1603 }
1604
1605 /* Fill in the entry in the global offset table. */
1606 bfd_put_32 (output_bfd,
1607 (splt->output_section->vma
1608 + splt->output_offset
1609 + h->plt.offset
1610 + 12), /* same offset */
1611 sgot->contents + got_offset);
1612
1613 /* Fill in the entry in the .rela.plt section. */
1614 rela.r_offset = (sgot->output_section->vma
1615 + sgot->output_offset
1616 + got_offset);
1617 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_JMP_SLOT);
1618 rela.r_addend = 0;
1619 loc = srela->contents;
1620 loc += plt_index * sizeof (Elf32_External_Rela);
1621 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1622
1623 if (!h->def_regular)
1624 {
1625 /* Mark the symbol as undefined, rather than as defined in
1626 the .plt section. Leave the value alone. */
1627 sym->st_shndx = SHN_UNDEF;
1628 }
1629
1630 }
1631
1632 if (h->got.offset != (bfd_vma) -1)
1633 {
1634 asection *sgot;
1635 asection *srela;
1636 Elf_Internal_Rela rela;
1637
1638 /* This symbol has an entry in the global offset table. Set it
1639 up. */
ce558b89
AM		 1640 sgot = htab->root.sgot;
1641 srela = htab->root.srelgot;
84e94c90
NC		 1642 BFD_ASSERT (sgot != NULL && srela != NULL);
1643
1644 rela.r_offset = (sgot->output_section->vma
1645 + sgot->output_offset
1646 + (h->got.offset &~ 1));
1647
1648 /* If this is a -Bsymbolic link, and the symbol is defined
1649 locally, we just want to emit a RELATIVE reloc. Likewise if
1650 the symbol was forced to be local because of a version file.
1651 The entry in the global offset table will already have been
1652 initialized in the relocate_section function. */
0e1862bb 1653 if (bfd_link_pic (info)
84e94c90
NC		 1654 && (info->symbolic
1655 || h->dynindx == -1
1656 || h->forced_local)
1657 && h->def_regular)
1658 {
1659 rela.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
1660 rela.r_addend = (h->root.u.def.value
1661 + h->root.u.def.section->output_section->vma
1662 + h->root.u.def.section->output_offset);
1663 }
1664 else
1665 {
1666 BFD_ASSERT ((h->got.offset & 1) == 0);
1667 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1668 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_GLOB_DAT);
1669 rela.r_addend = 0;
1670 }
1671
1672 loc = srela->contents;
1673 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1674 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1675 ++srela->reloc_count;
1676 }
1677
1678 if (h->needs_copy)
1679 {
1680 asection *s;
1681 Elf_Internal_Rela rela;
1682
1683 /* This symbols needs a copy reloc. Set it up. */
1684 BFD_ASSERT (h->dynindx != -1
1685 && (h->root.type == bfd_link_hash_defined
1686 || h->root.type == bfd_link_hash_defweak));
1687
3d4d4302 1688 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
84e94c90
NC		 1689 BFD_ASSERT (s != NULL);
1690
1691 rela.r_offset = (h->root.u.def.value
1692 + h->root.u.def.section->output_section->vma
1693 + h->root.u.def.section->output_offset);
1694 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_COPY);
1695 rela.r_addend = 0;
1696 loc = s->contents;
1697 loc += s->reloc_count * sizeof (Elf32_External_Rela);
1698 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1699 ++s->reloc_count;
1700 }
1701
1702 /* Mark some specially defined symbols as absolute. */
9637f6ef 1703 if (h == htab->root.hdynamic || h == htab->root.hgot)
84e94c90
NC		 1704 sym->st_shndx = SHN_ABS;
1705
1706 return TRUE;
1707}
1708
1709static enum elf_reloc_type_class
7e612e98
AM		 1710lm32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1711 const asection *rel_sec ATTRIBUTE_UNUSED,
1712 const Elf_Internal_Rela *rela)
84e94c90
NC		 1713{
1714 switch ((int) ELF32_R_TYPE (rela->r_info))
1715 {
1716 case R_LM32_RELATIVE: return reloc_class_relative;
1717 case R_LM32_JMP_SLOT: return reloc_class_plt;
1718 case R_LM32_COPY: return reloc_class_copy;
1719 default: return reloc_class_normal;
1720 }
1721}
1722
1723/* Adjust a symbol defined by a dynamic object and referenced by a
1724 regular object. The current definition is in some section of the
1725 dynamic object, but we're not including those sections. We have to
1726 change the definition to something the rest of the link can
1727 understand. */
1728
1729static bfd_boolean
1730lm32_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1731 struct elf_link_hash_entry *h)
1732{
1733 struct elf_lm32_link_hash_table *htab;
1734 struct elf_lm32_link_hash_entry *eh;
1735 struct elf_lm32_dyn_relocs *p;
1736 bfd *dynobj;
1737 asection *s;
1738
1739 dynobj = elf_hash_table (info)->dynobj;
1740
1741 /* Make sure we know what is going on here. */
1742 BFD_ASSERT (dynobj != NULL
1743 && (h->needs_plt
1744 || h->u.weakdef != NULL
1745 || (h->def_dynamic
1746 && h->ref_regular
1747 && !h->def_regular)));
1748
1749 /* If this is a function, put it in the procedure linkage table. We
1750 will fill in the contents of the procedure linkage table later,
1751 when we know the address of the .got section. */
1752 if (h->type == STT_FUNC
1753 || h->needs_plt)
1754 {
0e1862bb 1755 if (! bfd_link_pic (info)
84e94c90
NC		 1756 && !h->def_dynamic
1757 && !h->ref_dynamic
1758 && h->root.type != bfd_link_hash_undefweak
1759 && h->root.type != bfd_link_hash_undefined)
1760 {
1761 /* This case can occur if we saw a PLT reloc in an input
1762 file, but the symbol was never referred to by a dynamic
1763 object. In such a case, we don't actually need to build
1764 a procedure linkage table, and we can just do a PCREL
1765 reloc instead. */
1766 h->plt.offset = (bfd_vma) -1;
1767 h->needs_plt = 0;
1768 }
1769
1770 return TRUE;
1771 }
1772 else
1773 h->plt.offset = (bfd_vma) -1;
1774
1775 /* If this is a weak symbol, and there is a real definition, the
1776 processor independent code will have arranged for us to see the
1777 real definition first, and we can just use the same value. */
1778 if (h->u.weakdef != NULL)
1779 {
1780 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1781 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1782 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1783 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1784 return TRUE;
1785 }
1786
1787 /* This is a reference to a symbol defined by a dynamic object which
1788 is not a function. */
1789
1790 /* If we are creating a shared library, we must presume that the
1791 only references to the symbol are via the global offset table.
1792 For such cases we need not do anything here; the relocations will
1793 be handled correctly by relocate_section. */
0e1862bb 1794 if (bfd_link_pic (info))
84e94c90
NC		 1795 return TRUE;
1796
1797 /* If there are no references to this symbol that do not use the
1798 GOT, we don't need to generate a copy reloc. */
1799 if (!h->non_got_ref)
1800 return TRUE;
1801
1802 /* If -z nocopyreloc was given, we won't generate them either. */
1803 if (info->nocopyreloc)
1804 {
1805 h->non_got_ref = 0;
1806 return TRUE;
1807 }
1808
1809 eh = (struct elf_lm32_link_hash_entry *) h;
1810 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1811 {
1812 s = p->sec->output_section;
1813 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1814 break;
1815 }
1816
1817 /* If we didn't find any dynamic relocs in sections which needs the
1818 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1819 the copy reloc. */
1820 if (p == NULL)
1821 {
1822 h->non_got_ref = 0;
1823 return TRUE;
1824 }
1825
84e94c90
NC		 1826 /* We must allocate the symbol in our .dynbss section, which will
1827 become part of the .bss section of the executable. There will be
1828 an entry for this symbol in the .dynsym section. The dynamic
1829 object will contain position independent code, so all references
1830 from the dynamic object to this symbol will go through the global
1831 offset table. The dynamic linker will use the .dynsym entry to
1832 determine the address it must put in the global offset table, so
1833 both the dynamic object and the regular object will refer to the
1834 same memory location for the variable. */
1835
1836 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 1837 if (htab == NULL)
1838 return FALSE;
1839
84e94c90
NC		 1840 s = htab->sdynbss;
1841 BFD_ASSERT (s != NULL);
1842
1843 /* We must generate a R_LM32_COPY reloc to tell the dynamic linker
1844 to copy the initial value out of the dynamic object and into the
1845 runtime process image. We need to remember the offset into the
1846 .rela.bss section we are going to use. */
1d7e9d18 1847 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
84e94c90
NC		 1848 {
1849 asection *srel;
1850
1851 srel = htab->srelbss;
1852 BFD_ASSERT (srel != NULL);
1853 srel->size += sizeof (Elf32_External_Rela);
1854 h->needs_copy = 1;
1855 }
1856
6cabe1ea 1857 return _bfd_elf_adjust_dynamic_copy (info, h, s);
84e94c90
NC		 1858}
1859
1860/* Allocate space in .plt, .got and associated reloc sections for
1861 dynamic relocs. */
1862
1863static bfd_boolean
1864allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1865{
1866 struct bfd_link_info *info;
1867 struct elf_lm32_link_hash_table *htab;
1868 struct elf_lm32_link_hash_entry *eh;
1869 struct elf_lm32_dyn_relocs *p;
1870
1871 if (h->root.type == bfd_link_hash_indirect)
1872 return TRUE;
1873
84e94c90
NC		 1874 info = (struct bfd_link_info *) inf;
1875 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 1876 if (htab == NULL)
1877 return FALSE;
84e94c90
NC		 1878
1879 eh = (struct elf_lm32_link_hash_entry *) h;
1880
1881 if (htab->root.dynamic_sections_created
1882 && h->plt.refcount > 0)
1883 {
1884 /* Make sure this symbol is output as a dynamic symbol.
1885 Undefined weak syms won't yet be marked as dynamic. */
1886 if (h->dynindx == -1
1887 && !h->forced_local)
1888 {
1889 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1890 return FALSE;
1891 }
1892
0e1862bb 1893 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
84e94c90 1894 {
ce558b89 1895 asection *s = htab->root.splt;
84e94c90
NC		 1896
1897 /* If this is the first .plt entry, make room for the special
1898 first entry. */
1899 if (s->size == 0)
1900 s->size += PLT_ENTRY_SIZE;
1901
1902 h->plt.offset = s->size;
1903
1904 /* If this symbol is not defined in a regular file, and we are
1905 not generating a shared library, then set the symbol to this
1906 location in the .plt. This is required to make function
1907 pointers compare as equal between the normal executable and
1908 the shared library. */
0e1862bb 1909 if (! bfd_link_pic (info)
84e94c90
NC		 1910 && !h->def_regular)
1911 {
1912 h->root.u.def.section = s;
1913 h->root.u.def.value = h->plt.offset;
1914 }
1915
1916 /* Make room for this entry. */
1917 s->size += PLT_ENTRY_SIZE;
1918
1919 /* We also need to make an entry in the .got.plt section, which
1920 will be placed in the .got section by the linker script. */
ce558b89 1921 htab->root.sgotplt->size += 4;
84e94c90
NC		 1922
1923 /* We also need to make an entry in the .rel.plt section. */
ce558b89 1924 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
84e94c90
NC		 1925 }
1926 else
1927 {
1928 h->plt.offset = (bfd_vma) -1;
1929 h->needs_plt = 0;
1930 }
1931 }
1932 else
1933 {
1934 h->plt.offset = (bfd_vma) -1;
1935 h->needs_plt = 0;
1936 }
1937
1938 if (h->got.refcount > 0)
1939 {
1940 asection *s;
1941 bfd_boolean dyn;
1942
1943 /* Make sure this symbol is output as a dynamic symbol.
1944 Undefined weak syms won't yet be marked as dynamic. */
1945 if (h->dynindx == -1
1946 && !h->forced_local)
1947 {
1948 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1949 return FALSE;
1950 }
1951
ce558b89 1952 s = htab->root.sgot;
84e94c90
NC		 1953
1954 h->got.offset = s->size;
1955 s->size += 4;
1956 dyn = htab->root.dynamic_sections_created;
0e1862bb 1957 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
ce558b89 1958 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
84e94c90
NC		 1959 }
1960 else
1961 h->got.offset = (bfd_vma) -1;
1962
1963 if (eh->dyn_relocs == NULL)
1964 return TRUE;
1965
1966 /* In the shared -Bsymbolic case, discard space allocated for
1967 dynamic pc-relative relocs against symbols which turn out to be
1968 defined in regular objects. For the normal shared case, discard
1969 space for pc-relative relocs that have become local due to symbol
1970 visibility changes. */
1971
0e1862bb 1972 if (bfd_link_pic (info))
84e94c90
NC		 1973 {
1974 if (h->def_regular
1975 && (h->forced_local
1976 || info->symbolic))
1977 {
1978 struct elf_lm32_dyn_relocs **pp;
1979
1980 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
1981 {
1982 p->count -= p->pc_count;
1983 p->pc_count = 0;
1984 if (p->count == 0)
1985 *pp = p->next;
1986 else
1987 pp = &p->next;
1988 }
1989 }
1990
1991 /* Also discard relocs on undefined weak syms with non-default
1992 visibility. */
1993 if (eh->dyn_relocs != NULL
1994 && h->root.type == bfd_link_hash_undefweak)
1995 {
1996 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1997 eh->dyn_relocs = NULL;
1998
1999 /* Make sure undefined weak symbols are output as a dynamic
2000 symbol in PIEs. */
2001 else if (h->dynindx == -1
2002 && !h->forced_local)
2003 {
2004 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2005 return FALSE;
2006 }
2007 }
2008 }
2009 else
2010 {
2011 /* For the non-shared case, discard space for relocs against
2012 symbols which turn out to need copy relocs or are not
2013 dynamic. */
2014
2015 if (!h->non_got_ref
2016 && ((h->def_dynamic
2017 && !h->def_regular)
2018 || (htab->root.dynamic_sections_created
2019 && (h->root.type == bfd_link_hash_undefweak
2020 || h->root.type == bfd_link_hash_undefined))))
2021 {
2022 /* Make sure this symbol is output as a dynamic symbol.
2023 Undefined weak syms won't yet be marked as dynamic. */
2024 if (h->dynindx == -1
2025 && !h->forced_local)
2026 {
2027 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2028 return FALSE;
2029 }
2030
2031 /* If that succeeded, we know we'll be keeping all the
2032 relocs. */
2033 if (h->dynindx != -1)
2034 goto keep;
2035 }
2036
2037 eh->dyn_relocs = NULL;
2038
2039 keep: ;
2040 }
2041
2042 /* Finally, allocate space. */
2043 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2044 {
2045 asection *sreloc = elf_section_data (p->sec)->sreloc;
2046 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2047 }
2048
2049 return TRUE;
2050}
2051
2052/* Find any dynamic relocs that apply to read-only sections. */
2053
2054static bfd_boolean
2055readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2056{
2057 struct elf_lm32_link_hash_entry *eh;
2058 struct elf_lm32_dyn_relocs *p;
2059
84e94c90
NC		 2060 eh = (struct elf_lm32_link_hash_entry *) h;
2061 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2062 {
2063 asection *s = p->sec->output_section;
2064
2065 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2066 {
2067 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2068
2069 info->flags |= DF_TEXTREL;
2070
2071 /* Not an error, just cut short the traversal. */
2072 return FALSE;
2073 }
2074 }
2075 return TRUE;
2076}
2077
2078/* Set the sizes of the dynamic sections. */
2079
2080static bfd_boolean
2081lm32_elf_size_dynamic_sections (bfd *output_bfd,
2082 struct bfd_link_info *info)
2083{
2084 struct elf_lm32_link_hash_table *htab;
2085 bfd *dynobj;
2086 asection *s;
2087 bfd_boolean relocs;
2088 bfd *ibfd;
2089
2090 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 2091 if (htab == NULL)
2092 return FALSE;
2093
84e94c90
NC		 2094 dynobj = htab->root.dynobj;
2095 BFD_ASSERT (dynobj != NULL);
2096
2097 if (htab->root.dynamic_sections_created)
2098 {
2099 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2100 if (bfd_link_executable (info) && !info->nointerp)
84e94c90 2101 {
3d4d4302 2102 s = bfd_get_linker_section (dynobj, ".interp");
84e94c90
NC		 2103 BFD_ASSERT (s != NULL);
2104 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2105 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2106 }
2107 }
2108
2109 /* Set up .got offsets for local syms, and space for local dynamic
2110 relocs. */
c72f2fb2 2111 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
84e94c90
NC		 2112 {
2113 bfd_signed_vma *local_got;
2114 bfd_signed_vma *end_local_got;
2115 bfd_size_type locsymcount;
2116 Elf_Internal_Shdr *symtab_hdr;
2117 asection *srel;
2118
2119 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2120 continue;
2121
2122 for (s = ibfd->sections; s != NULL; s = s->next)
2123 {
2124 struct elf_lm32_dyn_relocs *p;
2125
2126 for (p = ((struct elf_lm32_dyn_relocs *)
2127 elf_section_data (s)->local_dynrel);
2128 p != NULL;
2129 p = p->next)
2130 {
2131 if (! bfd_is_abs_section (p->sec)
2132 && bfd_is_abs_section (p->sec->output_section))
2133 {
2134 /* Input section has been discarded, either because
2135 it is a copy of a linkonce section or due to
2136 linker script /DISCARD/, so we'll be discarding
2137 the relocs too. */
2138 }
2139 else if (p->count != 0)
2140 {
2141 srel = elf_section_data (p->sec)->sreloc;
2142 srel->size += p->count * sizeof (Elf32_External_Rela);
2143 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2144 info->flags |= DF_TEXTREL;
2145 }
2146 }
2147 }
2148
2149 local_got = elf_local_got_refcounts (ibfd);
2150 if (!local_got)
2151 continue;
2152
2153 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2154 locsymcount = symtab_hdr->sh_info;
2155 end_local_got = local_got + locsymcount;
ce558b89
AM		 2156 s = htab->root.sgot;
2157 srel = htab->root.srelgot;
84e94c90
NC		 2158 for (; local_got < end_local_got; ++local_got)
2159 {
2160 if (*local_got > 0)
2161 {
2162 *local_got = s->size;
2163 s->size += 4;
0e1862bb 2164 if (bfd_link_pic (info))
84e94c90
NC		 2165 srel->size += sizeof (Elf32_External_Rela);
2166 }
2167 else
2168 *local_got = (bfd_vma) -1;
2169 }
2170 }
2171
2172 /* Allocate global sym .plt and .got entries, and space for global
2173 sym dynamic relocs. */
2174 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2175
2176 /* We now have determined the sizes of the various dynamic sections.
2177 Allocate memory for them. */
2178 relocs = FALSE;
2179 for (s = dynobj->sections; s != NULL; s = s->next)
2180 {
2181 if ((s->flags & SEC_LINKER_CREATED) == 0)
2182 continue;
2183
ce558b89
AM		 2184 if (s == htab->root.splt
2185 || s == htab->root.sgot
2186 || s == htab->root.sgotplt
84e94c90
NC		 2187 || s == htab->sdynbss)
2188 {
2189 /* Strip this section if we don't need it; see the
2190 comment below. */
2191 }
2192 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2193 {
ce558b89 2194 if (s->size != 0 && s != htab->root.srelplt)
84e94c90
NC		 2195 relocs = TRUE;
2196
2197 /* We use the reloc_count field as a counter if we need
2198 to copy relocs into the output file. */
2199 s->reloc_count = 0;
2200 }
2201 else
2202 /* It's not one of our sections, so don't allocate space. */
2203 continue;
2204
2205 if (s->size == 0)
2206 {
2207 /* If we don't need this section, strip it from the
2208 output file. This is mostly to handle .rela.bss and
2209 .rela.plt. We must create both sections in
2210 create_dynamic_sections, because they must be created
2211 before the linker maps input sections to output
2212 sections. The linker does that before
2213 adjust_dynamic_symbol is called, and it is that
2214 function which decides whether anything needs to go
2215 into these sections. */
2216 s->flags |= SEC_EXCLUDE;
2217 continue;
2218 }
2219
2220 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2221 continue;
2222
2223 /* Allocate memory for the section contents. We use bfd_zalloc
2224 here in case unused entries are not reclaimed before the
2225 section's contents are written out. This should not happen,
2226 but this way if it does, we get a R_LM32_NONE reloc instead
2227 of garbage. */
2228 s->contents = bfd_zalloc (dynobj, s->size);
2229 if (s->contents == NULL)
2230 return FALSE;
2231 }
2232
2233 if (htab->root.dynamic_sections_created)
2234 {
2235 /* Add some entries to the .dynamic section. We fill in the
2236 values later, in lm32_elf_finish_dynamic_sections, but we
2237 must add the entries now so that we get the correct size for
2238 the .dynamic section. The DT_DEBUG entry is filled in by the
2239 dynamic linker and used by the debugger. */
2240#define add_dynamic_entry(TAG, VAL) \
2241 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2242
0e1862bb 2243 if (bfd_link_executable (info))
84e94c90
NC		 2244 {
2245 if (! add_dynamic_entry (DT_DEBUG, 0))
2246 return FALSE;
2247 }
2248
ce558b89 2249 if (htab->root.splt->size != 0)
84e94c90
NC		 2250 {
2251 if (! add_dynamic_entry (DT_PLTGOT, 0)
2252 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2253 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2254 || ! add_dynamic_entry (DT_JMPREL, 0))
2255 return FALSE;
2256 }
2257
2258 if (relocs)
2259 {
2260 if (! add_dynamic_entry (DT_RELA, 0)
2261 || ! add_dynamic_entry (DT_RELASZ, 0)
2262 || ! add_dynamic_entry (DT_RELAENT,
2263 sizeof (Elf32_External_Rela)))
2264 return FALSE;
2265
2266 /* If any dynamic relocs apply to a read-only section,
2267 then we need a DT_TEXTREL entry. */
2268 if ((info->flags & DF_TEXTREL) == 0)
2269 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2270 info);
2271
2272 if ((info->flags & DF_TEXTREL) != 0)
2273 {
2274 if (! add_dynamic_entry (DT_TEXTREL, 0))
2275 return FALSE;
2276 }
2277 }
2278 }
2279#undef add_dynamic_entry
2280
2281 /* Allocate .rofixup section. */
2282 if (IS_FDPIC (output_bfd))
2283 {
2284 struct weak_symbol_list *list_start = NULL, *list_end = NULL;
2285 int rgot_weak_count = 0;
2286 int r32_count = 0;
2287 int rgot_count = 0;
2288 /* Look for deleted sections. */
c72f2fb2 2289 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
84e94c90
NC		 2290 {
2291 for (s = ibfd->sections; s != NULL; s = s->next)
2292 {
2293 if (s->reloc_count)
2294 {
2295 /* Count relocs that need .rofixup entires. */
2296 Elf_Internal_Rela *internal_relocs, *end;
2297 internal_relocs = elf_section_data (s)->relocs;
2298 if (internal_relocs == NULL)
2299 internal_relocs = (_bfd_elf_link_read_relocs (ibfd, s, NULL, NULL, FALSE));
2300 if (internal_relocs != NULL)
2301 {
2302 end = internal_relocs + s->reloc_count;
2303 while (internal_relocs < end)
2304 {
2305 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2306 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
2307 unsigned long r_symndx;
2308 struct elf_link_hash_entry *h;
2309
2310 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2311 sym_hashes = elf_sym_hashes (ibfd);
2312 r_symndx = ELF32_R_SYM (internal_relocs->r_info);
2313 h = NULL;
2314 if (r_symndx < symtab_hdr->sh_info)
2315 {
2316 }
2317 else
2318 {
2319 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2320 while (h->root.type == bfd_link_hash_indirect
2321 || h->root.type == bfd_link_hash_warning)
2322 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2323 }
2324
2325 /* Don't generate entries for weak symbols. */
2326 if (!h || (h && h->root.type != bfd_link_hash_undefweak))
2327 {
dbaa2011 2328 if (!discarded_section (s) && !((bfd_get_section_flags (ibfd, s) & SEC_ALLOC) == 0))
84e94c90
NC		 2329 {
2330 switch (ELF32_R_TYPE (internal_relocs->r_info))
2331 {
2332 case R_LM32_32:
2333 r32_count++;
2334 break;
2335 case R_LM32_16_GOT:
2336 rgot_count++;
2337 break;
2338 }
2339 }
2340 }
2341 else
2342 {
2343 struct weak_symbol_list *current, *new_entry;
2344 /* Is this symbol already in the list? */
2345 for (current = list_start; current; current = current->next)
2346 {
2347 if (!strcmp (current->name, h->root.root.string))
2348 break;
2349 }
dbaa2011 2350 if (!current && !discarded_section (s) && (bfd_get_section_flags (ibfd, s) & SEC_ALLOC))
84e94c90
NC		 2351 {
2352 /* Will this have an entry in the GOT. */
2353 if (ELF32_R_TYPE (internal_relocs->r_info) == R_LM32_16_GOT)
2354 {
2355 /* Create a new entry. */
2356 new_entry = malloc (sizeof (struct weak_symbol_list));
2357 if (!new_entry)
2358 return FALSE;
2359 new_entry->name = h->root.root.string;
2360 new_entry->next = NULL;
2361 /* Add to list */
2362 if (list_start == NULL)
2363 {
2364 list_start = new_entry;
2365 list_end = new_entry;
2366 }
2367 else
2368 {
2369 list_end->next = new_entry;
2370 list_end = new_entry;
2371 }
2372 /* Increase count of undefined weak symbols in the got. */
2373 rgot_weak_count++;
2374 }
2375 }
2376 }
2377 internal_relocs++;
2378 }
2379 }
2380 else
2381 return FALSE;
2382 }
2383 }
2384 }
2385 /* Free list. */
2386 while (list_start)
2387 {
2388 list_end = list_start->next;
2389 free (list_start);
2390 list_start = list_end;
2391 }
2392
2393 /* Size sections. */
ce558b89
AM		 2394 lm32fdpic_fixup32_section (info)->size
2395 = (r32_count + (htab->root.sgot->size / 4) - rgot_weak_count + 1) * 4;
84e94c90
NC		 2396 if (lm32fdpic_fixup32_section (info)->size == 0)
2397 lm32fdpic_fixup32_section (info)->flags |= SEC_EXCLUDE;
2398 else
2399 {
2400 lm32fdpic_fixup32_section (info)->contents =
2401 bfd_zalloc (dynobj, lm32fdpic_fixup32_section (info)->size);
2402 if (lm32fdpic_fixup32_section (info)->contents == NULL)
2403 return FALSE;
2404 }
2405 }
2406
2407 return TRUE;
2408}
2409
2410/* Create dynamic sections when linking against a dynamic object. */
2411
2412static bfd_boolean
2413lm32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2414{
2415 struct elf_lm32_link_hash_table *htab;
2416 flagword flags, pltflags;
2417 asection *s;
2418 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2419 int ptralign = 2; /* 32bit */
2420
2421 htab = lm32_elf_hash_table (info);
4dfe6ac6
NC		 2422 if (htab == NULL)
2423 return FALSE;
84e94c90
NC		 2424
2425 /* Make sure we have a GOT - For the case where we have a dynamic object
2426 but none of the relocs in check_relocs */
ce558b89 2427 if (!_bfd_elf_create_got_section (abfd, info))
84e94c90
NC		 2428 return FALSE;
2429 if (IS_FDPIC (abfd) && (htab->sfixup32 == NULL))
2430 {
2431 if (! create_rofixup_section (abfd, info))
2432 return FALSE;
2433 }
2434
2435 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2436 .rel[a].bss sections. */
2437 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2438 | SEC_LINKER_CREATED);
2439
2440 pltflags = flags;
2441 pltflags |= SEC_CODE;
2442 if (bed->plt_not_loaded)
2443 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2444 if (bed->plt_readonly)
2445 pltflags |= SEC_READONLY;
2446
3d4d4302 2447 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
ce558b89 2448 htab->root.splt = s;
84e94c90
NC		 2449 if (s == NULL
2450 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
2451 return FALSE;
2452
2453 if (bed->want_plt_sym)
2454 {
2455 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2456 .plt section. */
2457 struct bfd_link_hash_entry *bh = NULL;
2458 struct elf_link_hash_entry *h;
2459
2460 if (! (_bfd_generic_link_add_one_symbol
2461 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
2462 (bfd_vma) 0, NULL, FALSE,
2463 get_elf_backend_data (abfd)->collect, &bh)))
2464 return FALSE;
2465 h = (struct elf_link_hash_entry *) bh;
2466 h->def_regular = 1;
2467 h->type = STT_OBJECT;
2468 htab->root.hplt = h;
2469
0e1862bb 2470 if (bfd_link_pic (info)
84e94c90
NC		 2471 && ! bfd_elf_link_record_dynamic_symbol (info, h))
2472 return FALSE;
2473 }
2474
3d4d4302
AM		 2475 s = bfd_make_section_anyway_with_flags (abfd,
2476 bed->default_use_rela_p
2477 ? ".rela.plt" : ".rel.plt",
2478 flags | SEC_READONLY);
ce558b89 2479 htab->root.srelplt = s;
84e94c90
NC		 2480 if (s == NULL
2481 || ! bfd_set_section_alignment (abfd, s, ptralign))
2482 return FALSE;
2483
ce558b89
AM		 2484 if (htab->root.sgot == NULL
2485 && !_bfd_elf_create_got_section (abfd, info))
84e94c90
NC		 2486 return FALSE;
2487
84e94c90
NC		 2488 if (bed->want_dynbss)
2489 {
2490 /* The .dynbss section is a place to put symbols which are defined
2491 by dynamic objects, are referenced by regular objects, and are
2492 not functions. We must allocate space for them in the process
2493 image and use a R_*_COPY reloc to tell the dynamic linker to
2494 initialize them at run time. The linker script puts the .dynbss
2495 section into the .bss section of the final image. */
3d4d4302
AM		 2496 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2497 SEC_ALLOC | SEC_LINKER_CREATED);
84e94c90
NC		 2498 htab->sdynbss = s;
2499 if (s == NULL)
2500 return FALSE;
2501 /* The .rel[a].bss section holds copy relocs. This section is not
2502 normally needed. We need to create it here, though, so that the
2503 linker will map it to an output section. We can't just create it
2504 only if we need it, because we will not know whether we need it
2505 until we have seen all the input files, and the first time the
2506 main linker code calls BFD after examining all the input files
2507 (size_dynamic_sections) the input sections have already been
2508 mapped to the output sections. If the section turns out not to
2509 be needed, we can discard it later. We will never need this
2510 section when generating a shared object, since they do not use
2511 copy relocs. */
0e1862bb 2512 if (! bfd_link_pic (info))
84e94c90 2513 {
3d4d4302
AM		 2514 s = bfd_make_section_anyway_with_flags (abfd,
2515 (bed->default_use_rela_p
2516 ? ".rela.bss" : ".rel.bss"),
2517 flags | SEC_READONLY);
84e94c90
NC		 2518 htab->srelbss = s;
2519 if (s == NULL
2520 || ! bfd_set_section_alignment (abfd, s, ptralign))
2521 return FALSE;
2522 }
2523 }
2524
2525 return TRUE;
2526}
2527
2528/* Copy the extra info we tack onto an elf_link_hash_entry. */
2529
2530static void
2531lm32_elf_copy_indirect_symbol (struct bfd_link_info *info,
2532 struct elf_link_hash_entry *dir,
2533 struct elf_link_hash_entry *ind)
2534{
2535 struct elf_lm32_link_hash_entry * edir;
2536 struct elf_lm32_link_hash_entry * eind;
2537
2538 edir = (struct elf_lm32_link_hash_entry *) dir;
2539 eind = (struct elf_lm32_link_hash_entry *) ind;
2540
2541 if (eind->dyn_relocs != NULL)
2542 {
2543 if (edir->dyn_relocs != NULL)
2544 {
2545 struct elf_lm32_dyn_relocs **pp;
2546 struct elf_lm32_dyn_relocs *p;
2547
2548 /* Add reloc counts against the indirect sym to the direct sym
2549 list. Merge any entries against the same section. */
2550 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2551 {
2552 struct elf_lm32_dyn_relocs *q;
2553
2554 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2555 if (q->sec == p->sec)
2556 {
2557 q->pc_count += p->pc_count;
2558 q->count += p->count;
2559 *pp = p->next;
2560 break;
2561 }
2562 if (q == NULL)
2563 pp = &p->next;
2564 }
2565 *pp = edir->dyn_relocs;
2566 }
2567
2568 edir->dyn_relocs = eind->dyn_relocs;
2569 eind->dyn_relocs = NULL;
2570 }
2571
2572 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2573}
2574
2575static bfd_boolean
04c3a755 2576lm32_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
84e94c90 2577{
0e1862bb 2578 if (!bfd_link_relocatable (info))
84e94c90 2579 {
04c3a755
NS		 2580 if (!bfd_elf_stack_segment_size (output_bfd, info,
2581 "__stacksize", DEFAULT_STACK_SIZE))
2582 return FALSE;
84e94c90 2583
84e94c90 2584 asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
84e94c90 2585 if (sec)
04c3a755 2586 sec->size = info->stacksize >= 0 ? info->stacksize : 0;
84e94c90
NC		 2587 }
2588
2589 return TRUE;
2590}
2591
84e94c90
NC		 2592static bfd_boolean
2593lm32_elf_fdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2594{
2595 unsigned i;
2596
2597 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2598 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2599 return TRUE;
2600
e2349352 2601 if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
84e94c90
NC		 2602 return FALSE;
2603
2604 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
2605 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
2606 return TRUE;
2607
2608 /* Copy the stack size. */
2609 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
2610 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
2611 {
2612 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
2613
2614 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
2615 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
2616 {
2617 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
2618
2619 /* Rewrite the phdrs, since we're only called after they were first written. */
2620 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
2621 ->s->sizeof_ehdr, SEEK_SET) != 0
2622 || get_elf_backend_data (obfd)->s->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
2623 elf_elfheader (obfd)->e_phnum) != 0)
2624 return FALSE;
2625 break;
2626 }
2627
2628 break;
2629 }
2630
2631 return TRUE;
2632}
2633
2634
2635#define ELF_ARCH bfd_arch_lm32
ae95ffa6 2636#define ELF_TARGET_ID LM32_ELF_DATA
84e94c90
NC		 2637#define ELF_MACHINE_CODE EM_LATTICEMICO32
2638#define ELF_MAXPAGESIZE 0x1000
2639
6d00b590 2640#define TARGET_BIG_SYM lm32_elf32_vec
84e94c90
NC		 2641#define TARGET_BIG_NAME "elf32-lm32"
2642
2643#define bfd_elf32_bfd_reloc_type_lookup lm32_reloc_type_lookup
2644#define bfd_elf32_bfd_reloc_name_lookup lm32_reloc_name_lookup
2645#define elf_info_to_howto lm32_info_to_howto_rela
2646#define elf_info_to_howto_rel 0
2647#define elf_backend_rela_normal 1
2648#define elf_backend_object_p lm32_elf_object_p
2649#define elf_backend_final_write_processing lm32_elf_final_write_processing
04c3a755 2650#define elf_backend_stack_align 8
84e94c90
NC		 2651#define elf_backend_can_gc_sections 1
2652#define elf_backend_can_refcount 1
2653#define elf_backend_gc_mark_hook lm32_elf_gc_mark_hook
2654#define elf_backend_gc_sweep_hook lm32_elf_gc_sweep_hook
2655#define elf_backend_plt_readonly 1
2656#define elf_backend_want_got_plt 1
2657#define elf_backend_want_plt_sym 0
2658#define elf_backend_got_header_size 12
2659#define bfd_elf32_bfd_link_hash_table_create lm32_elf_link_hash_table_create
2660#define elf_backend_check_relocs lm32_elf_check_relocs
2661#define elf_backend_reloc_type_class lm32_elf_reloc_type_class
2662#define elf_backend_copy_indirect_symbol lm32_elf_copy_indirect_symbol
2663#define elf_backend_size_dynamic_sections lm32_elf_size_dynamic_sections
2664#define elf_backend_omit_section_dynsym ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
2665#define elf_backend_create_dynamic_sections lm32_elf_create_dynamic_sections
2666#define elf_backend_finish_dynamic_sections lm32_elf_finish_dynamic_sections
2667#define elf_backend_adjust_dynamic_symbol lm32_elf_adjust_dynamic_symbol
2668#define elf_backend_finish_dynamic_symbol lm32_elf_finish_dynamic_symbol
2669#define elf_backend_relocate_section lm32_elf_relocate_section
2670
2671#include "elf32-target.h"
2672
2673#undef ELF_MAXPAGESIZE
2674#define ELF_MAXPAGESIZE 0x4000
2675
2676
2677#undef TARGET_BIG_SYM
6d00b590 2678#define TARGET_BIG_SYM lm32_elf32_fdpic_vec
84e94c90
NC		 2679#undef TARGET_BIG_NAME
2680#define TARGET_BIG_NAME "elf32-lm32fdpic"
2681#undef elf32_bed
2682#define elf32_bed elf32_lm32fdpic_bed
2683
2684#undef elf_backend_always_size_sections
2685#define elf_backend_always_size_sections lm32_elf_always_size_sections
84e94c90
NC		 2686#undef bfd_elf32_bfd_copy_private_bfd_data
2687#define bfd_elf32_bfd_copy_private_bfd_data lm32_elf_fdpic_copy_private_bfd_data
2688
2689#include "elf32-target.h"
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