1 /* Lattice Mico32-specific support for 32-bit ELF
2 Copyright (C) 2008-2016 Free Software Foundation, Inc.
3 Contributed by Jon Beniston <jon@beniston.com>
5 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
28 #define DEFAULT_STACK_SIZE 0x20000
30 #define PLT_ENTRY_SIZE 20
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
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
44 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
46 extern const bfd_target lm32_elf32_fdpic_vec;
48 #define IS_FDPIC(bfd) ((bfd)->xvec == &lm32_elf32_fdpic_vec)
50 static bfd_reloc_status_type lm32_elf_gprel_reloc
51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
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. */
59 struct elf_lm32_dyn_relocs
61 struct elf_lm32_dyn_relocs *next;
63 /* The input section of the reloc. */
66 /* Total number of relocs copied for the input section. */
69 /* Number of pc-relative relocs copied for the input section. */
70 bfd_size_type pc_count;
73 /* lm32 ELF linker hash entry. */
75 struct elf_lm32_link_hash_entry
77 struct elf_link_hash_entry root;
79 /* Track dynamic relocs copied for this symbol. */
80 struct elf_lm32_dyn_relocs *dyn_relocs;
83 /* lm32 ELF linker hash table. */
85 struct elf_lm32_link_hash_table
87 struct elf_link_hash_table root;
89 /* Short-cuts to get to dynamic linker sections. */
102 /* Get the lm32 ELF linker hash table from a link_info structure. */
104 #define lm32_elf_hash_table(p) \
105 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
106 == LM32_ELF_DATA ? ((struct elf_lm32_link_hash_table *) ((p)->hash)) : NULL)
108 #define lm32fdpic_got_section(info) \
109 (lm32_elf_hash_table (info)->sgot)
110 #define lm32fdpic_gotrel_section(info) \
111 (lm32_elf_hash_table (info)->srelgot)
112 #define lm32fdpic_fixup32_section(info) \
113 (lm32_elf_hash_table (info)->sfixup32)
115 struct weak_symbol_list
118 struct weak_symbol_list *next;
121 /* Create an entry in an lm32 ELF linker hash table. */
123 static struct bfd_hash_entry *
124 lm32_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
125 struct bfd_hash_table *table,
128 struct elf_lm32_link_hash_entry *ret =
129 (struct elf_lm32_link_hash_entry *) entry;
131 /* Allocate the structure if it has not already been allocated by a
134 ret = bfd_hash_allocate (table,
135 sizeof (struct elf_lm32_link_hash_entry));
139 /* Call the allocation method of the superclass. */
140 ret = ((struct elf_lm32_link_hash_entry *)
141 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
145 struct elf_lm32_link_hash_entry *eh;
147 eh = (struct elf_lm32_link_hash_entry *) ret;
148 eh->dyn_relocs = NULL;
151 return (struct bfd_hash_entry *) ret;
154 /* Create an lm32 ELF linker hash table. */
156 static struct bfd_link_hash_table *
157 lm32_elf_link_hash_table_create (bfd *abfd)
159 struct elf_lm32_link_hash_table *ret;
160 bfd_size_type amt = sizeof (struct elf_lm32_link_hash_table);
162 ret = bfd_zmalloc (amt);
166 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
167 lm32_elf_link_hash_newfunc,
168 sizeof (struct elf_lm32_link_hash_entry),
175 return &ret->root.root;
178 /* Add a fixup to the ROFIXUP section. */
181 _lm32fdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma relocation)
183 bfd_vma fixup_offset;
185 if (rofixup->flags & SEC_EXCLUDE)
188 fixup_offset = rofixup->reloc_count * 4;
189 if (rofixup->contents)
191 BFD_ASSERT (fixup_offset < rofixup->size);
192 if (fixup_offset < rofixup->size)
193 bfd_put_32 (output_bfd, relocation, rofixup->contents + fixup_offset);
195 rofixup->reloc_count++;
200 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
201 shortcuts to them in our hash table. */
204 create_got_section (bfd *dynobj, struct bfd_link_info *info)
206 struct elf_lm32_link_hash_table *htab;
209 /* This function may be called more than once. */
210 s = bfd_get_linker_section (dynobj, ".got");
214 htab = lm32_elf_hash_table (info);
218 if (! _bfd_elf_create_got_section (dynobj, info))
221 htab->sgot = bfd_get_linker_section (dynobj, ".got");
222 htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
223 htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got");
224 if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
230 /* Create .rofixup sections in DYNOBJ, and set up
231 shortcuts to them in our hash table. */
234 create_rofixup_section (bfd *dynobj, struct bfd_link_info *info)
236 struct elf_lm32_link_hash_table *htab;
237 htab = lm32_elf_hash_table (info);
242 /* Fixup section for R_LM32_32 relocs. */
243 lm32fdpic_fixup32_section (info)
244 = bfd_make_section_anyway_with_flags (dynobj,
252 if (lm32fdpic_fixup32_section (info) == NULL
253 || ! bfd_set_section_alignment (dynobj,
254 lm32fdpic_fixup32_section (info), 2))
260 static reloc_howto_type lm32_elf_howto_table [] =
262 /* This reloc does nothing. */
263 HOWTO (R_LM32_NONE, /* type */
265 3, /* size (0 = byte, 1 = short, 2 = long) */
267 FALSE, /* pc_relative */
269 complain_overflow_dont, /* complain_on_overflow */
270 bfd_elf_generic_reloc, /* special_function */
271 "R_LM32_NONE", /* name */
272 FALSE, /* partial_inplace */
275 FALSE), /* pcrel_offset */
277 /* An 8 bit absolute relocation. */
278 HOWTO (R_LM32_8, /* type */
280 0, /* size (0 = byte, 1 = short, 2 = long) */
282 FALSE, /* pc_relative */
284 complain_overflow_bitfield,/* complain_on_overflow */
285 bfd_elf_generic_reloc, /* special_function */
286 "R_LM32_8", /* name */
287 FALSE, /* partial_inplace */
290 FALSE), /* pcrel_offset */
292 /* A 16 bit absolute relocation. */
293 HOWTO (R_LM32_16, /* type */
295 1, /* size (0 = byte, 1 = short, 2 = long) */
297 FALSE, /* pc_relative */
299 complain_overflow_bitfield,/* complain_on_overflow */
300 bfd_elf_generic_reloc, /* special_function */
301 "R_LM32_16", /* name */
302 FALSE, /* partial_inplace */
304 0xffff, /* dst_mask */
305 FALSE), /* pcrel_offset */
307 /* A 32 bit absolute relocation. */
308 HOWTO (R_LM32_32, /* type */
310 2, /* size (0 = byte, 1 = short, 2 = long) */
312 FALSE, /* pc_relative */
314 complain_overflow_bitfield,/* complain_on_overflow */
315 bfd_elf_generic_reloc, /* special_function */
316 "R_LM32_32", /* name */
317 FALSE, /* partial_inplace */
319 0xffffffff, /* dst_mask */
320 FALSE), /* pcrel_offset */
322 HOWTO (R_LM32_HI16, /* type */
324 2, /* size (0 = byte, 1 = short, 2 = long) */
326 FALSE, /* pc_relative */
328 complain_overflow_bitfield,/* complain_on_overflow */
329 bfd_elf_generic_reloc, /* special_function */
330 "R_LM32_HI16", /* name */
331 FALSE, /* partial_inplace */
333 0xffff, /* dst_mask */
334 FALSE), /* pcrel_offset */
336 HOWTO (R_LM32_LO16, /* type */
338 2, /* size (0 = byte, 1 = short, 2 = long) */
340 FALSE, /* pc_relative */
342 complain_overflow_dont, /* complain_on_overflow */
343 bfd_elf_generic_reloc, /* special_function */
344 "R_LM32_LO16", /* name */
345 FALSE, /* partial_inplace */
347 0xffff, /* dst_mask */
348 FALSE), /* pcrel_offset */
350 HOWTO (R_LM32_GPREL16, /* type */
352 2, /* size (0 = byte, 1 = short, 2 = long) */
354 FALSE, /* pc_relative */
356 complain_overflow_dont, /* complain_on_overflow */
357 lm32_elf_gprel_reloc, /* special_function */
358 "R_LM32_GPREL16", /* name */
359 FALSE, /* partial_inplace */
361 0xffff, /* dst_mask */
362 FALSE), /* pcrel_offset */
364 HOWTO (R_LM32_CALL, /* type */
366 2, /* size (0 = byte, 1 = short, 2 = long) */
368 TRUE, /* pc_relative */
370 complain_overflow_signed, /* complain_on_overflow */
371 bfd_elf_generic_reloc, /* special_function */
372 "R_LM32_CALL", /* name */
373 FALSE, /* partial_inplace */
375 0x3ffffff, /* dst_mask */
376 TRUE), /* pcrel_offset */
378 HOWTO (R_LM32_BRANCH, /* type */
380 2, /* size (0 = byte, 1 = short, 2 = long) */
382 TRUE, /* pc_relative */
384 complain_overflow_signed, /* complain_on_overflow */
385 bfd_elf_generic_reloc, /* special_function */
386 "R_LM32_BRANCH", /* name */
387 FALSE, /* partial_inplace */
389 0xffff, /* dst_mask */
390 TRUE), /* pcrel_offset */
392 /* GNU extension to record C++ vtable hierarchy. */
393 HOWTO (R_LM32_GNU_VTINHERIT, /* type */
395 2, /* size (0 = byte, 1 = short, 2 = long) */
397 FALSE, /* pc_relative */
399 complain_overflow_dont, /* complain_on_overflow */
400 NULL, /* special_function */
401 "R_LM32_GNU_VTINHERIT", /* name */
402 FALSE, /* partial_inplace */
405 FALSE), /* pcrel_offset */
407 /* GNU extension to record C++ vtable member usage. */
408 HOWTO (R_LM32_GNU_VTENTRY, /* type */
410 2, /* size (0 = byte, 1 = short, 2 = long) */
412 FALSE, /* pc_relative */
414 complain_overflow_dont, /* complain_on_overflow */
415 _bfd_elf_rel_vtable_reloc_fn,/* special_function */
416 "R_LM32_GNU_VTENTRY", /* name */
417 FALSE, /* partial_inplace */
420 FALSE), /* pcrel_offset */
422 HOWTO (R_LM32_16_GOT, /* type */
424 2, /* size (0 = byte, 1 = short, 2 = long) */
426 FALSE, /* pc_relative */
428 complain_overflow_signed, /* complain_on_overflow */
429 bfd_elf_generic_reloc, /* special_function */
430 "R_LM32_16_GOT", /* name */
431 FALSE, /* partial_inplace */
433 0xffff, /* dst_mask */
434 FALSE), /* pcrel_offset */
436 HOWTO (R_LM32_GOTOFF_HI16, /* type */
438 2, /* size (0 = byte, 1 = short, 2 = long) */
440 FALSE, /* pc_relative */
442 complain_overflow_dont, /* complain_on_overflow */
443 bfd_elf_generic_reloc, /* special_function */
444 "R_LM32_GOTOFF_HI16", /* name */
445 FALSE, /* partial_inplace */
446 0xffff, /* src_mask */
447 0xffff, /* dst_mask */
448 FALSE), /* pcrel_offset */
450 HOWTO (R_LM32_GOTOFF_LO16, /* type */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
454 FALSE, /* pc_relative */
456 complain_overflow_dont, /* complain_on_overflow */
457 bfd_elf_generic_reloc, /* special_function */
458 "R_LM32_GOTOFF_LO16", /* name */
459 FALSE, /* partial_inplace */
460 0xffff, /* src_mask */
461 0xffff, /* dst_mask */
462 FALSE), /* pcrel_offset */
464 HOWTO (R_LM32_COPY, /* type */
466 2, /* size (0 = byte, 1 = short, 2 = long) */
468 FALSE, /* pc_relative */
470 complain_overflow_bitfield, /* complain_on_overflow */
471 bfd_elf_generic_reloc, /* special_function */
472 "R_LM32_COPY", /* name */
473 FALSE, /* partial_inplace */
474 0xffffffff, /* src_mask */
475 0xffffffff, /* dst_mask */
476 FALSE), /* pcrel_offset */
478 HOWTO (R_LM32_GLOB_DAT, /* type */
480 2, /* size (0 = byte, 1 = short, 2 = long) */
482 FALSE, /* pc_relative */
484 complain_overflow_bitfield, /* complain_on_overflow */
485 bfd_elf_generic_reloc, /* special_function */
486 "R_LM32_GLOB_DAT", /* name */
487 FALSE, /* partial_inplace */
488 0xffffffff, /* src_mask */
489 0xffffffff, /* dst_mask */
490 FALSE), /* pcrel_offset */
492 HOWTO (R_LM32_JMP_SLOT, /* type */
494 2, /* size (0 = byte, 1 = short, 2 = long) */
496 FALSE, /* pc_relative */
498 complain_overflow_bitfield, /* complain_on_overflow */
499 bfd_elf_generic_reloc, /* special_function */
500 "R_LM32_JMP_SLOT", /* name */
501 FALSE, /* partial_inplace */
502 0xffffffff, /* src_mask */
503 0xffffffff, /* dst_mask */
504 FALSE), /* pcrel_offset */
506 HOWTO (R_LM32_RELATIVE, /* type */
508 2, /* size (0 = byte, 1 = short, 2 = long) */
510 FALSE, /* pc_relative */
512 complain_overflow_bitfield, /* complain_on_overflow */
513 bfd_elf_generic_reloc, /* special_function */
514 "R_LM32_RELATIVE", /* name */
515 FALSE, /* partial_inplace */
516 0xffffffff, /* src_mask */
517 0xffffffff, /* dst_mask */
518 FALSE), /* pcrel_offset */
522 /* Map BFD reloc types to lm32 ELF reloc types. */
524 struct lm32_reloc_map
526 bfd_reloc_code_real_type bfd_reloc_val;
527 unsigned char elf_reloc_val;
530 static const struct lm32_reloc_map lm32_reloc_map[] =
532 { BFD_RELOC_NONE, R_LM32_NONE },
533 { BFD_RELOC_8, R_LM32_8 },
534 { BFD_RELOC_16, R_LM32_16 },
535 { BFD_RELOC_32, R_LM32_32 },
536 { BFD_RELOC_HI16, R_LM32_HI16 },
537 { BFD_RELOC_LO16, R_LM32_LO16 },
538 { BFD_RELOC_GPREL16, R_LM32_GPREL16 },
539 { BFD_RELOC_LM32_CALL, R_LM32_CALL },
540 { BFD_RELOC_LM32_BRANCH, R_LM32_BRANCH },
541 { BFD_RELOC_VTABLE_INHERIT, R_LM32_GNU_VTINHERIT },
542 { BFD_RELOC_VTABLE_ENTRY, R_LM32_GNU_VTENTRY },
543 { BFD_RELOC_LM32_16_GOT, R_LM32_16_GOT },
544 { BFD_RELOC_LM32_GOTOFF_HI16, R_LM32_GOTOFF_HI16 },
545 { BFD_RELOC_LM32_GOTOFF_LO16, R_LM32_GOTOFF_LO16 },
546 { BFD_RELOC_LM32_COPY, R_LM32_COPY },
547 { BFD_RELOC_LM32_GLOB_DAT, R_LM32_GLOB_DAT },
548 { BFD_RELOC_LM32_JMP_SLOT, R_LM32_JMP_SLOT },
549 { BFD_RELOC_LM32_RELATIVE, R_LM32_RELATIVE },
552 static reloc_howto_type *
553 lm32_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
554 bfd_reloc_code_real_type code)
558 for (i = 0; i < sizeof (lm32_reloc_map) / sizeof (lm32_reloc_map[0]); i++)
559 if (lm32_reloc_map[i].bfd_reloc_val == code)
560 return &lm32_elf_howto_table[lm32_reloc_map[i].elf_reloc_val];
564 static reloc_howto_type *
565 lm32_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
571 i < sizeof (lm32_elf_howto_table) / sizeof (lm32_elf_howto_table[0]);
573 if (lm32_elf_howto_table[i].name != NULL
574 && strcasecmp (lm32_elf_howto_table[i].name, r_name) == 0)
575 return &lm32_elf_howto_table[i];
581 /* Set the howto pointer for an Lattice Mico32 ELF reloc. */
584 lm32_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
586 Elf_Internal_Rela *dst)
590 r_type = ELF32_R_TYPE (dst->r_info);
591 if (r_type >= (unsigned int) R_LM32_max)
593 /* xgettext:c-format */
594 _bfd_error_handler (_("%B: invalid LM32 reloc number: %d"), abfd, r_type);
597 cache_ptr->howto = &lm32_elf_howto_table[r_type];
600 /* Set the right machine number for an Lattice Mico32 ELF file. */
603 lm32_elf_object_p (bfd *abfd)
605 return bfd_default_set_arch_mach (abfd, bfd_arch_lm32, bfd_mach_lm32);
608 /* Set machine type flags just before file is written out. */
611 lm32_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
613 elf_elfheader (abfd)->e_machine = EM_LATTICEMICO32;
614 elf_elfheader (abfd)->e_flags &=~ EF_LM32_MACH;
615 switch (bfd_get_mach (abfd))
618 elf_elfheader (abfd)->e_flags |= E_LM32_MACH;
625 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
626 dangerous relocation. */
629 lm32_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
635 /* If we've already figured out what GP will be, just return it. */
636 *pgp = _bfd_get_gp_value (output_bfd);
640 count = bfd_get_symcount (output_bfd);
641 sym = bfd_get_outsymbols (output_bfd);
643 /* The linker script will have created a symbol named `_gp' with the
644 appropriate value. */
649 for (i = 0; i < count; i++, sym++)
653 name = bfd_asymbol_name (*sym);
654 if (*name == '_' && strcmp (name, "_gp") == 0)
656 *pgp = bfd_asymbol_value (*sym);
657 _bfd_set_gp_value (output_bfd, *pgp);
665 /* Only get the error once. */
667 _bfd_set_gp_value (output_bfd, *pgp);
674 /* We have to figure out the gp value, so that we can adjust the
675 symbol value correctly. We look up the symbol _gp in the output
676 BFD. If we can't find it, we're stuck. We cache it in the ELF
677 target data. We don't need to adjust the symbol value for an
678 external symbol if we are producing relocatable output. */
680 static bfd_reloc_status_type
681 lm32_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
682 char **error_message, bfd_vma *pgp)
684 if (bfd_is_und_section (symbol->section) && !relocatable)
687 return bfd_reloc_undefined;
690 *pgp = _bfd_get_gp_value (output_bfd);
691 if (*pgp == 0 && (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0))
695 /* Make up a value. */
696 *pgp = symbol->section->output_section->vma + 0x4000;
697 _bfd_set_gp_value (output_bfd, *pgp);
699 else if (!lm32_elf_assign_gp (output_bfd, pgp))
703 _("global pointer relative relocation when _gp not defined");
704 return bfd_reloc_dangerous;
711 static bfd_reloc_status_type
712 lm32_elf_do_gprel_relocate (bfd *abfd,
713 reloc_howto_type *howto,
714 asection *input_section ATTRIBUTE_UNUSED,
717 bfd_vma symbol_value,
720 return _bfd_final_link_relocate (howto, abfd, input_section,
721 data, offset, symbol_value, addend);
724 static bfd_reloc_status_type
725 lm32_elf_gprel_reloc (bfd *abfd,
726 arelent *reloc_entry,
729 asection *input_section,
735 bfd_reloc_status_type r;
737 if (output_bfd != (bfd *) NULL
738 && (symbol->flags & BSF_SECTION_SYM) == 0
739 && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0))
741 reloc_entry->address += input_section->output_offset;
745 if (output_bfd != NULL)
748 relocation = symbol->value
749 + symbol->section->output_section->vma + symbol->section->output_offset;
752 lm32_elf_final_gp (abfd, symbol, FALSE, msg, &gp)) == bfd_reloc_ok)
754 relocation = relocation + reloc_entry->addend - gp;
755 reloc_entry->addend = 0;
756 if ((signed) relocation < -32768 || (signed) relocation > 32767)
758 *msg = _("global pointer relative address out of range");
759 r = bfd_reloc_outofrange;
763 r = lm32_elf_do_gprel_relocate (abfd, reloc_entry->howto,
765 data, reloc_entry->address,
766 relocation, reloc_entry->addend);
773 /* Find the segment number in which OSEC, and output section, is
777 _lm32fdpic_osec_to_segment (bfd *output_bfd, asection *osec)
779 struct elf_segment_map *m;
780 Elf_Internal_Phdr *p;
782 /* Find the segment that contains the output_section. */
783 for (m = elf_seg_map (output_bfd), p = elf_tdata (output_bfd)->phdr;
789 for (i = m->count - 1; i >= 0; i--)
790 if (m->sections[i] == osec)
797 return p - elf_tdata (output_bfd)->phdr;
800 /* Determine if an output section is read-only. */
802 inline static bfd_boolean
803 _lm32fdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
805 unsigned seg = _lm32fdpic_osec_to_segment (output_bfd, osec);
807 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
810 /* Relocate a section */
813 lm32_elf_relocate_section (bfd *output_bfd,
814 struct bfd_link_info *info,
816 asection *input_section,
818 Elf_Internal_Rela *relocs,
819 Elf_Internal_Sym *local_syms,
820 asection **local_sections)
822 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
823 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
824 Elf_Internal_Rela *rel, *relend;
825 struct elf_lm32_link_hash_table *htab = lm32_elf_hash_table (info);
827 bfd_vma *local_got_offsets;
833 dynobj = htab->root.dynobj;
834 local_got_offsets = elf_local_got_offsets (input_bfd);
838 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
839 sym_hashes = elf_sym_hashes (input_bfd);
842 relend = relocs + input_section->reloc_count;
843 for (; rel < relend; rel++)
845 reloc_howto_type *howto;
847 unsigned long r_symndx;
848 Elf_Internal_Sym *sym;
850 struct elf_link_hash_entry *h;
853 bfd_reloc_status_type r;
854 const char *name = NULL;
856 r_symndx = ELF32_R_SYM (rel->r_info);
857 r_type = ELF32_R_TYPE (rel->r_info);
859 if (r_type == R_LM32_GNU_VTENTRY
860 || r_type == R_LM32_GNU_VTINHERIT )
867 howto = lm32_elf_howto_table + r_type;
869 if (r_symndx < symtab_hdr->sh_info)
871 /* It's a local symbol. */
872 sym = local_syms + r_symndx;
873 sec = local_sections[r_symndx];
874 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
875 name = bfd_elf_string_from_elf_section
876 (input_bfd, symtab_hdr->sh_link, sym->st_name);
877 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
881 /* It's a global symbol. */
882 bfd_boolean unresolved_reloc;
883 bfd_boolean warned, ignored;
885 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
886 r_symndx, symtab_hdr, sym_hashes,
888 unresolved_reloc, warned, ignored);
889 name = h->root.root.string;
892 if (sec != NULL && discarded_section (sec))
893 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
894 rel, 1, relend, howto, 0, contents);
896 if (bfd_link_relocatable (info))
898 /* This is a relocatable link. We don't have to change
899 anything, unless the reloc is against a section symbol,
900 in which case we have to adjust according to where the
901 section symbol winds up in the output section. */
902 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
905 /* If partial_inplace, we need to store any additional addend
906 back in the section. */
907 if (! howto->partial_inplace)
910 /* Shouldn't reach here. */
919 if (!lm32_elf_assign_gp (output_bfd, &gp))
920 r = bfd_reloc_dangerous;
923 relocation = relocation + rel->r_addend - gp;
925 if ((signed)relocation < -32768 || (signed)relocation > 32767)
926 r = bfd_reloc_outofrange;
929 r = _bfd_final_link_relocate (howto, input_bfd,
930 input_section, contents,
931 rel->r_offset, relocation,
937 /* Relocation is to the entry for this symbol in the global
939 BFD_ASSERT (sgot != NULL);
946 BFD_ASSERT (off != (bfd_vma) -1);
948 dyn = htab->root.dynamic_sections_created;
949 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
952 || (bfd_link_pic (info)
958 /* This is actually a static link, or it is a
959 -Bsymbolic link and the symbol is defined
960 locally, or the symbol was forced to be local
961 because of a version file. We must initialize
962 this entry in the global offset table. Since the
963 offset must always be a multiple of 4, we use the
964 least significant bit to record whether we have
965 initialized it already.
967 When doing a dynamic link, we create a .rela.got
968 relocation entry to initialize the value. This
969 is done in the finish_dynamic_symbol routine. */
974 /* Write entry in GOT */
975 bfd_put_32 (output_bfd, relocation,
976 sgot->contents + off);
977 /* Create entry in .rofixup pointing to GOT entry. */
978 if (IS_FDPIC (output_bfd) && h->root.type != bfd_link_hash_undefweak)
980 _lm32fdpic_add_rofixup (output_bfd,
981 lm32fdpic_fixup32_section
983 sgot->output_section->vma
984 + sgot->output_offset
987 /* Mark GOT entry as having been written. */
992 relocation = sgot->output_offset + off;
999 BFD_ASSERT (local_got_offsets != NULL
1000 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1002 /* Get offset into GOT table. */
1003 off = local_got_offsets[r_symndx];
1005 /* The offset must always be a multiple of 4. We use
1006 the least significant bit to record whether we have
1007 already processed this entry. */
1012 /* Write entry in GOT. */
1013 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1014 /* Create entry in .rofixup pointing to GOT entry. */
1015 if (IS_FDPIC (output_bfd))
1017 _lm32fdpic_add_rofixup (output_bfd,
1018 lm32fdpic_fixup32_section
1020 sgot->output_section->vma
1021 + sgot->output_offset
1025 if (bfd_link_pic (info))
1028 Elf_Internal_Rela outrel;
1030 /* We need to generate a R_LM32_RELATIVE reloc
1031 for the dynamic linker. */
1032 srelgot = bfd_get_linker_section (dynobj,
1034 BFD_ASSERT (srelgot != NULL);
1036 outrel.r_offset = (sgot->output_section->vma
1037 + sgot->output_offset
1039 outrel.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
1040 outrel.r_addend = relocation;
1041 loc = srelgot->contents;
1042 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
1043 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
1044 ++srelgot->reloc_count;
1047 local_got_offsets[r_symndx] |= 1;
1051 relocation = sgot->output_offset + off;
1054 /* Addend should be zero. */
1055 if (rel->r_addend != 0)
1056 _bfd_error_handler (_("internal error: addend should be zero for R_LM32_16_GOT"));
1058 r = _bfd_final_link_relocate (howto,
1067 case R_LM32_GOTOFF_LO16:
1068 case R_LM32_GOTOFF_HI16:
1069 /* Relocation is offset from GOT. */
1070 BFD_ASSERT (sgot != NULL);
1071 relocation -= sgot->output_section->vma;
1072 /* Account for sign-extension. */
1073 if ((r_type == R_LM32_GOTOFF_HI16)
1074 && ((relocation + rel->r_addend) & 0x8000))
1075 rel->r_addend += 0x10000;
1076 r = _bfd_final_link_relocate (howto,
1086 if (IS_FDPIC (output_bfd))
1088 if ((!h) || (h && h->root.type != bfd_link_hash_undefweak))
1090 /* Only create .rofixup entries for relocs in loadable sections. */
1091 if ((bfd_get_section_flags (output_bfd, input_section->output_section)
1092 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
1095 /* Check address to be modified is writable. */
1096 if (_lm32fdpic_osec_readonly_p (output_bfd,
1100 info->callbacks->warning
1102 _("cannot emit dynamic relocations in read-only section"),
1103 name, input_bfd, input_section, rel->r_offset);
1106 /* Create entry in .rofixup section. */
1107 _lm32fdpic_add_rofixup (output_bfd,
1108 lm32fdpic_fixup32_section (info),
1109 input_section->output_section->vma
1110 + input_section->output_offset
1118 r = _bfd_final_link_relocate (howto,
1129 if (r != bfd_reloc_ok)
1131 const char *msg = NULL;
1134 lm32_info_to_howto_rela (input_bfd, &bfd_reloc, rel);
1135 howto = bfd_reloc.howto;
1138 name = h->root.root.string;
1141 name = (bfd_elf_string_from_elf_section
1142 (input_bfd, symtab_hdr->sh_link, sym->st_name));
1143 if (name == NULL || *name == '\0')
1144 name = bfd_section_name (input_bfd, sec);
1149 case bfd_reloc_overflow:
1151 && (h->root.type == bfd_link_hash_undefweak))
1153 (*info->callbacks->reloc_overflow)
1154 (info, (h ? &h->root : NULL), name, howto->name,
1155 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1158 case bfd_reloc_undefined:
1159 (*info->callbacks->undefined_symbol)
1160 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1163 case bfd_reloc_outofrange:
1164 msg = _("internal error: out of range error");
1167 case bfd_reloc_notsupported:
1168 msg = _("internal error: unsupported relocation error");
1171 case bfd_reloc_dangerous:
1172 msg = _("internal error: dangerous error");
1176 msg = _("internal error: unknown error");
1180 (*info->callbacks->warning) (info, msg, name, input_bfd,
1181 input_section, rel->r_offset);
1191 lm32_elf_gc_mark_hook (asection *sec,
1192 struct bfd_link_info *info,
1193 Elf_Internal_Rela *rel,
1194 struct elf_link_hash_entry *h,
1195 Elf_Internal_Sym *sym)
1198 switch (ELF32_R_TYPE (rel->r_info))
1200 case R_LM32_GNU_VTINHERIT:
1201 case R_LM32_GNU_VTENTRY:
1205 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1209 lm32_elf_gc_sweep_hook (bfd *abfd,
1210 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1212 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
1214 /* Update the got entry reference counts for the section being removed. */
1215 Elf_Internal_Shdr *symtab_hdr;
1216 struct elf_link_hash_entry **sym_hashes;
1217 bfd_signed_vma *local_got_refcounts;
1218 const Elf_Internal_Rela *rel, *relend;
1220 elf_section_data (sec)->local_dynrel = NULL;
1222 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1223 sym_hashes = elf_sym_hashes (abfd);
1224 local_got_refcounts = elf_local_got_refcounts (abfd);
1226 relend = relocs + sec->reloc_count;
1227 for (rel = relocs; rel < relend; rel++)
1229 unsigned long r_symndx;
1230 struct elf_link_hash_entry *h = NULL;
1232 r_symndx = ELF32_R_SYM (rel->r_info);
1233 if (r_symndx >= symtab_hdr->sh_info)
1235 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1236 while (h->root.type == bfd_link_hash_indirect
1237 || h->root.type == bfd_link_hash_warning)
1238 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1241 switch (ELF32_R_TYPE (rel->r_info))
1246 if (h->got.refcount > 0)
1251 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
1252 local_got_refcounts[r_symndx]--;
1263 /* Look through the relocs for a section during the first phase. */
1266 lm32_elf_check_relocs (bfd *abfd,
1267 struct bfd_link_info *info,
1269 const Elf_Internal_Rela *relocs)
1271 Elf_Internal_Shdr *symtab_hdr;
1272 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
1273 const Elf_Internal_Rela *rel;
1274 const Elf_Internal_Rela *rel_end;
1275 struct elf_lm32_link_hash_table *htab;
1278 if (bfd_link_relocatable (info))
1281 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1282 sym_hashes = elf_sym_hashes (abfd);
1283 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
1284 if (!elf_bad_symtab (abfd))
1285 sym_hashes_end -= symtab_hdr->sh_info;
1287 htab = lm32_elf_hash_table (info);
1291 dynobj = htab->root.dynobj;
1293 rel_end = relocs + sec->reloc_count;
1294 for (rel = relocs; rel < rel_end; rel++)
1297 struct elf_link_hash_entry *h;
1298 unsigned long r_symndx;
1300 r_symndx = ELF32_R_SYM (rel->r_info);
1301 r_type = ELF32_R_TYPE (rel->r_info);
1302 if (r_symndx < symtab_hdr->sh_info)
1306 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1307 while (h->root.type == bfd_link_hash_indirect
1308 || h->root.type == bfd_link_hash_warning)
1309 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1311 /* PR15323, ref flags aren't set for references in the same
1313 h->root.non_ir_ref = 1;
1316 /* Some relocs require a global offset table. */
1317 if (htab->sgot == NULL)
1322 case R_LM32_GOTOFF_HI16:
1323 case R_LM32_GOTOFF_LO16:
1325 htab->root.dynobj = dynobj = abfd;
1326 if (! create_got_section (dynobj, info))
1332 /* Some relocs require a rofixup table. */
1333 if (IS_FDPIC (abfd))
1338 /* FDPIC requires a GOT if there is a .rofixup section
1339 (Normal ELF doesn't). */
1341 htab->root.dynobj = dynobj = abfd;
1342 if (! create_got_section (dynobj, info))
1344 /* Create .rofixup section */
1345 if (htab->sfixup32 == NULL)
1347 if (! create_rofixup_section (dynobj, info))
1352 case R_LM32_GOTOFF_HI16:
1353 case R_LM32_GOTOFF_LO16:
1354 /* Create .rofixup section. */
1355 if (htab->sfixup32 == NULL)
1358 htab->root.dynobj = dynobj = abfd;
1359 if (! create_rofixup_section (dynobj, info))
1370 h->got.refcount += 1;
1373 bfd_signed_vma *local_got_refcounts;
1375 /* This is a global offset table entry for a local symbol. */
1376 local_got_refcounts = elf_local_got_refcounts (abfd);
1377 if (local_got_refcounts == NULL)
1381 size = symtab_hdr->sh_info;
1382 size *= sizeof (bfd_signed_vma);
1383 local_got_refcounts = bfd_zalloc (abfd, size);
1384 if (local_got_refcounts == NULL)
1386 elf_local_got_refcounts (abfd) = local_got_refcounts;
1388 local_got_refcounts[r_symndx] += 1;
1392 /* This relocation describes the C++ object vtable hierarchy.
1393 Reconstruct it for later use during GC. */
1394 case R_LM32_GNU_VTINHERIT:
1395 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1399 /* This relocation describes which C++ vtable entries are actually
1400 used. Record for later use during GC. */
1401 case R_LM32_GNU_VTENTRY:
1402 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1412 /* Finish up the dynamic sections. */
1415 lm32_elf_finish_dynamic_sections (bfd *output_bfd,
1416 struct bfd_link_info *info)
1418 struct elf_lm32_link_hash_table *htab;
1423 htab = lm32_elf_hash_table (info);
1427 dynobj = htab->root.dynobj;
1429 sgot = htab->sgotplt;
1430 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
1432 if (htab->root.dynamic_sections_created)
1435 Elf32_External_Dyn *dyncon, *dynconend;
1437 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1439 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1440 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1442 for (; dyncon < dynconend; dyncon++)
1444 Elf_Internal_Dyn dyn;
1447 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1460 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1461 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1466 dyn.d_un.d_val = s->size;
1467 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1471 /* My reading of the SVR4 ABI indicates that the
1472 procedure linkage table relocs (DT_JMPREL) should be
1473 included in the overall relocs (DT_RELA). This is
1474 what Solaris does. However, UnixWare can not handle
1475 that case. Therefore, we override the DT_RELASZ entry
1476 here to make it not include the JMPREL relocs. Since
1477 the linker script arranges for .rela.plt to follow all
1478 other relocation sections, we don't have to worry
1479 about changing the DT_RELA entry. */
1480 if (htab->srelplt != NULL)
1483 dyn.d_un.d_val -= s->size;
1485 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1490 /* Fill in the first entry in the procedure linkage table. */
1492 if (splt && splt->size > 0)
1494 if (bfd_link_pic (info))
1496 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
1497 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
1498 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
1499 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
1500 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
1505 /* addr = .got + 4 */
1506 addr = sgot->output_section->vma + sgot->output_offset + 4;
1507 bfd_put_32 (output_bfd,
1508 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1510 bfd_put_32 (output_bfd,
1511 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1512 splt->contents + 4);
1513 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1514 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1515 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1518 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
1523 /* Fill in the first three entries in the global offset table. */
1524 if (sgot && sgot->size > 0)
1527 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1529 bfd_put_32 (output_bfd,
1530 sdyn->output_section->vma + sdyn->output_offset,
1532 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1533 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1535 /* FIXME: This can be null if create_dynamic_sections wasn't called. */
1536 if (elf_section_data (sgot->output_section) != NULL)
1537 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1540 if (lm32fdpic_fixup32_section (info))
1542 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
1543 bfd_vma got_value = hgot->root.u.def.value
1544 + hgot->root.u.def.section->output_section->vma
1545 + hgot->root.u.def.section->output_offset;
1546 struct bfd_link_hash_entry *hend;
1548 /* Last entry is pointer to GOT. */
1549 _lm32fdpic_add_rofixup (output_bfd, lm32fdpic_fixup32_section (info), got_value);
1551 /* Check we wrote enough entries. */
1552 if (lm32fdpic_fixup32_section (info)->size
1553 != (lm32fdpic_fixup32_section (info)->reloc_count * 4))
1556 ("LINKER BUG: .rofixup section size mismatch: size/4 %d != relocs %d",
1557 lm32fdpic_fixup32_section (info)->size/4,
1558 lm32fdpic_fixup32_section (info)->reloc_count);
1562 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
1563 FALSE, FALSE, TRUE);
1565 && (hend->type == bfd_link_hash_defined
1566 || hend->type == bfd_link_hash_defweak))
1569 lm32fdpic_fixup32_section (info)->output_section->vma
1570 + lm32fdpic_fixup32_section (info)->output_offset
1571 + lm32fdpic_fixup32_section (info)->size
1572 - hend->u.def.section->output_section->vma
1573 - hend->u.def.section->output_offset;
1574 BFD_ASSERT (hend->u.def.value == value);
1575 if (hend->u.def.value != value)
1578 ("LINKER BUG: .rofixup section hend->u.def.value != value: %ld != %ld", hend->u.def.value, value);
1587 /* Finish up dynamic symbol handling. We set the contents of various
1588 dynamic sections here. */
1591 lm32_elf_finish_dynamic_symbol (bfd *output_bfd,
1592 struct bfd_link_info *info,
1593 struct elf_link_hash_entry *h,
1594 Elf_Internal_Sym *sym)
1596 struct elf_lm32_link_hash_table *htab;
1599 htab = lm32_elf_hash_table (info);
1603 if (h->plt.offset != (bfd_vma) -1)
1611 Elf_Internal_Rela rela;
1613 /* This symbol has an entry in the procedure linkage table. Set
1615 BFD_ASSERT (h->dynindx != -1);
1618 sgot = htab->sgotplt;
1619 srela = htab->srelplt;
1620 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1622 /* Get the index in the procedure linkage table which
1623 corresponds to this symbol. This is the index of this symbol
1624 in all the symbols for which we are making plt entries. The
1625 first entry in the procedure linkage table is reserved. */
1626 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1628 /* Get the offset into the .got table of the entry that
1629 corresponds to this function. Each .got entry is 4 bytes.
1630 The first three are reserved. */
1631 got_offset = (plt_index + 3) * 4;
1633 /* Fill in the entry in the procedure linkage table. */
1634 if (! bfd_link_pic (info))
1643 /* Fill in the entry in the global offset table. */
1644 bfd_put_32 (output_bfd,
1645 (splt->output_section->vma
1646 + splt->output_offset
1648 + 12), /* same offset */
1649 sgot->contents + got_offset);
1651 /* Fill in the entry in the .rela.plt section. */
1652 rela.r_offset = (sgot->output_section->vma
1653 + sgot->output_offset
1655 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_JMP_SLOT);
1657 loc = srela->contents;
1658 loc += plt_index * sizeof (Elf32_External_Rela);
1659 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1661 if (!h->def_regular)
1663 /* Mark the symbol as undefined, rather than as defined in
1664 the .plt section. Leave the value alone. */
1665 sym->st_shndx = SHN_UNDEF;
1670 if (h->got.offset != (bfd_vma) -1)
1674 Elf_Internal_Rela rela;
1676 /* This symbol has an entry in the global offset table. Set it
1679 srela = htab->srelgot;
1680 BFD_ASSERT (sgot != NULL && srela != NULL);
1682 rela.r_offset = (sgot->output_section->vma
1683 + sgot->output_offset
1684 + (h->got.offset &~ 1));
1686 /* If this is a -Bsymbolic link, and the symbol is defined
1687 locally, we just want to emit a RELATIVE reloc. Likewise if
1688 the symbol was forced to be local because of a version file.
1689 The entry in the global offset table will already have been
1690 initialized in the relocate_section function. */
1691 if (bfd_link_pic (info)
1697 rela.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
1698 rela.r_addend = (h->root.u.def.value
1699 + h->root.u.def.section->output_section->vma
1700 + h->root.u.def.section->output_offset);
1704 BFD_ASSERT ((h->got.offset & 1) == 0);
1705 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1706 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_GLOB_DAT);
1710 loc = srela->contents;
1711 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1712 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1713 ++srela->reloc_count;
1719 Elf_Internal_Rela rela;
1721 /* This symbols needs a copy reloc. Set it up. */
1722 BFD_ASSERT (h->dynindx != -1
1723 && (h->root.type == bfd_link_hash_defined
1724 || h->root.type == bfd_link_hash_defweak));
1726 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
1727 BFD_ASSERT (s != NULL);
1729 rela.r_offset = (h->root.u.def.value
1730 + h->root.u.def.section->output_section->vma
1731 + h->root.u.def.section->output_offset);
1732 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_COPY);
1735 loc += s->reloc_count * sizeof (Elf32_External_Rela);
1736 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1740 /* Mark some specially defined symbols as absolute. */
1741 if (h == htab->root.hdynamic || h == htab->root.hgot)
1742 sym->st_shndx = SHN_ABS;
1747 static enum elf_reloc_type_class
1748 lm32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1749 const asection *rel_sec ATTRIBUTE_UNUSED,
1750 const Elf_Internal_Rela *rela)
1752 switch ((int) ELF32_R_TYPE (rela->r_info))
1754 case R_LM32_RELATIVE: return reloc_class_relative;
1755 case R_LM32_JMP_SLOT: return reloc_class_plt;
1756 case R_LM32_COPY: return reloc_class_copy;
1757 default: return reloc_class_normal;
1761 /* Adjust a symbol defined by a dynamic object and referenced by a
1762 regular object. The current definition is in some section of the
1763 dynamic object, but we're not including those sections. We have to
1764 change the definition to something the rest of the link can
1768 lm32_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1769 struct elf_link_hash_entry *h)
1771 struct elf_lm32_link_hash_table *htab;
1772 struct elf_lm32_link_hash_entry *eh;
1773 struct elf_lm32_dyn_relocs *p;
1777 dynobj = elf_hash_table (info)->dynobj;
1779 /* Make sure we know what is going on here. */
1780 BFD_ASSERT (dynobj != NULL
1782 || h->u.weakdef != NULL
1785 && !h->def_regular)));
1787 /* If this is a function, put it in the procedure linkage table. We
1788 will fill in the contents of the procedure linkage table later,
1789 when we know the address of the .got section. */
1790 if (h->type == STT_FUNC
1793 if (! bfd_link_pic (info)
1796 && h->root.type != bfd_link_hash_undefweak
1797 && h->root.type != bfd_link_hash_undefined)
1799 /* This case can occur if we saw a PLT reloc in an input
1800 file, but the symbol was never referred to by a dynamic
1801 object. In such a case, we don't actually need to build
1802 a procedure linkage table, and we can just do a PCREL
1804 h->plt.offset = (bfd_vma) -1;
1811 h->plt.offset = (bfd_vma) -1;
1813 /* If this is a weak symbol, and there is a real definition, the
1814 processor independent code will have arranged for us to see the
1815 real definition first, and we can just use the same value. */
1816 if (h->u.weakdef != NULL)
1818 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1819 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1820 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1821 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1825 /* This is a reference to a symbol defined by a dynamic object which
1826 is not a function. */
1828 /* If we are creating a shared library, we must presume that the
1829 only references to the symbol are via the global offset table.
1830 For such cases we need not do anything here; the relocations will
1831 be handled correctly by relocate_section. */
1832 if (bfd_link_pic (info))
1835 /* If there are no references to this symbol that do not use the
1836 GOT, we don't need to generate a copy reloc. */
1837 if (!h->non_got_ref)
1840 /* If -z nocopyreloc was given, we won't generate them either. */
1841 if (info->nocopyreloc)
1847 eh = (struct elf_lm32_link_hash_entry *) h;
1848 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1850 s = p->sec->output_section;
1851 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1855 /* If we didn't find any dynamic relocs in sections which needs the
1856 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1864 /* We must allocate the symbol in our .dynbss section, which will
1865 become part of the .bss section of the executable. There will be
1866 an entry for this symbol in the .dynsym section. The dynamic
1867 object will contain position independent code, so all references
1868 from the dynamic object to this symbol will go through the global
1869 offset table. The dynamic linker will use the .dynsym entry to
1870 determine the address it must put in the global offset table, so
1871 both the dynamic object and the regular object will refer to the
1872 same memory location for the variable. */
1874 htab = lm32_elf_hash_table (info);
1879 BFD_ASSERT (s != NULL);
1881 /* We must generate a R_LM32_COPY reloc to tell the dynamic linker
1882 to copy the initial value out of the dynamic object and into the
1883 runtime process image. We need to remember the offset into the
1884 .rela.bss section we are going to use. */
1885 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1889 srel = htab->srelbss;
1890 BFD_ASSERT (srel != NULL);
1891 srel->size += sizeof (Elf32_External_Rela);
1895 return _bfd_elf_adjust_dynamic_copy (info, h, s);
1898 /* Allocate space in .plt, .got and associated reloc sections for
1902 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1904 struct bfd_link_info *info;
1905 struct elf_lm32_link_hash_table *htab;
1906 struct elf_lm32_link_hash_entry *eh;
1907 struct elf_lm32_dyn_relocs *p;
1909 if (h->root.type == bfd_link_hash_indirect)
1912 info = (struct bfd_link_info *) inf;
1913 htab = lm32_elf_hash_table (info);
1917 eh = (struct elf_lm32_link_hash_entry *) h;
1919 if (htab->root.dynamic_sections_created
1920 && h->plt.refcount > 0)
1922 /* Make sure this symbol is output as a dynamic symbol.
1923 Undefined weak syms won't yet be marked as dynamic. */
1924 if (h->dynindx == -1
1925 && !h->forced_local)
1927 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1931 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
1933 asection *s = htab->splt;
1935 /* If this is the first .plt entry, make room for the special
1938 s->size += PLT_ENTRY_SIZE;
1940 h->plt.offset = s->size;
1942 /* If this symbol is not defined in a regular file, and we are
1943 not generating a shared library, then set the symbol to this
1944 location in the .plt. This is required to make function
1945 pointers compare as equal between the normal executable and
1946 the shared library. */
1947 if (! bfd_link_pic (info)
1950 h->root.u.def.section = s;
1951 h->root.u.def.value = h->plt.offset;
1954 /* Make room for this entry. */
1955 s->size += PLT_ENTRY_SIZE;
1957 /* We also need to make an entry in the .got.plt section, which
1958 will be placed in the .got section by the linker script. */
1959 htab->sgotplt->size += 4;
1961 /* We also need to make an entry in the .rel.plt section. */
1962 htab->srelplt->size += sizeof (Elf32_External_Rela);
1966 h->plt.offset = (bfd_vma) -1;
1972 h->plt.offset = (bfd_vma) -1;
1976 if (h->got.refcount > 0)
1981 /* Make sure this symbol is output as a dynamic symbol.
1982 Undefined weak syms won't yet be marked as dynamic. */
1983 if (h->dynindx == -1
1984 && !h->forced_local)
1986 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1992 h->got.offset = s->size;
1994 dyn = htab->root.dynamic_sections_created;
1995 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
1996 htab->srelgot->size += sizeof (Elf32_External_Rela);
1999 h->got.offset = (bfd_vma) -1;
2001 if (eh->dyn_relocs == NULL)
2004 /* In the shared -Bsymbolic case, discard space allocated for
2005 dynamic pc-relative relocs against symbols which turn out to be
2006 defined in regular objects. For the normal shared case, discard
2007 space for pc-relative relocs that have become local due to symbol
2008 visibility changes. */
2010 if (bfd_link_pic (info))
2016 struct elf_lm32_dyn_relocs **pp;
2018 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2020 p->count -= p->pc_count;
2029 /* Also discard relocs on undefined weak syms with non-default
2031 if (eh->dyn_relocs != NULL
2032 && h->root.type == bfd_link_hash_undefweak)
2034 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2035 eh->dyn_relocs = NULL;
2037 /* Make sure undefined weak symbols are output as a dynamic
2039 else if (h->dynindx == -1
2040 && !h->forced_local)
2042 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2049 /* For the non-shared case, discard space for relocs against
2050 symbols which turn out to need copy relocs or are not
2056 || (htab->root.dynamic_sections_created
2057 && (h->root.type == bfd_link_hash_undefweak
2058 || h->root.type == bfd_link_hash_undefined))))
2060 /* Make sure this symbol is output as a dynamic symbol.
2061 Undefined weak syms won't yet be marked as dynamic. */
2062 if (h->dynindx == -1
2063 && !h->forced_local)
2065 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2069 /* If that succeeded, we know we'll be keeping all the
2071 if (h->dynindx != -1)
2075 eh->dyn_relocs = NULL;
2080 /* Finally, allocate space. */
2081 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2083 asection *sreloc = elf_section_data (p->sec)->sreloc;
2084 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2090 /* Find any dynamic relocs that apply to read-only sections. */
2093 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2095 struct elf_lm32_link_hash_entry *eh;
2096 struct elf_lm32_dyn_relocs *p;
2098 eh = (struct elf_lm32_link_hash_entry *) h;
2099 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2101 asection *s = p->sec->output_section;
2103 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2105 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2107 info->flags |= DF_TEXTREL;
2109 /* Not an error, just cut short the traversal. */
2116 /* Set the sizes of the dynamic sections. */
2119 lm32_elf_size_dynamic_sections (bfd *output_bfd,
2120 struct bfd_link_info *info)
2122 struct elf_lm32_link_hash_table *htab;
2128 htab = lm32_elf_hash_table (info);
2132 dynobj = htab->root.dynobj;
2133 BFD_ASSERT (dynobj != NULL);
2135 if (htab->root.dynamic_sections_created)
2137 /* Set the contents of the .interp section to the interpreter. */
2138 if (bfd_link_executable (info) && !info->nointerp)
2140 s = bfd_get_linker_section (dynobj, ".interp");
2141 BFD_ASSERT (s != NULL);
2142 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2143 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2147 /* Set up .got offsets for local syms, and space for local dynamic
2149 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2151 bfd_signed_vma *local_got;
2152 bfd_signed_vma *end_local_got;
2153 bfd_size_type locsymcount;
2154 Elf_Internal_Shdr *symtab_hdr;
2157 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2160 for (s = ibfd->sections; s != NULL; s = s->next)
2162 struct elf_lm32_dyn_relocs *p;
2164 for (p = ((struct elf_lm32_dyn_relocs *)
2165 elf_section_data (s)->local_dynrel);
2169 if (! bfd_is_abs_section (p->sec)
2170 && bfd_is_abs_section (p->sec->output_section))
2172 /* Input section has been discarded, either because
2173 it is a copy of a linkonce section or due to
2174 linker script /DISCARD/, so we'll be discarding
2177 else if (p->count != 0)
2179 srel = elf_section_data (p->sec)->sreloc;
2180 srel->size += p->count * sizeof (Elf32_External_Rela);
2181 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2182 info->flags |= DF_TEXTREL;
2187 local_got = elf_local_got_refcounts (ibfd);
2191 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2192 locsymcount = symtab_hdr->sh_info;
2193 end_local_got = local_got + locsymcount;
2195 srel = htab->srelgot;
2196 for (; local_got < end_local_got; ++local_got)
2200 *local_got = s->size;
2202 if (bfd_link_pic (info))
2203 srel->size += sizeof (Elf32_External_Rela);
2206 *local_got = (bfd_vma) -1;
2210 /* Allocate global sym .plt and .got entries, and space for global
2211 sym dynamic relocs. */
2212 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2214 /* We now have determined the sizes of the various dynamic sections.
2215 Allocate memory for them. */
2217 for (s = dynobj->sections; s != NULL; s = s->next)
2219 if ((s->flags & SEC_LINKER_CREATED) == 0)
2224 || s == htab->sgotplt
2225 || s == htab->sdynbss)
2227 /* Strip this section if we don't need it; see the
2230 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2232 if (s->size != 0 && s != htab->srelplt)
2235 /* We use the reloc_count field as a counter if we need
2236 to copy relocs into the output file. */
2240 /* It's not one of our sections, so don't allocate space. */
2245 /* If we don't need this section, strip it from the
2246 output file. This is mostly to handle .rela.bss and
2247 .rela.plt. We must create both sections in
2248 create_dynamic_sections, because they must be created
2249 before the linker maps input sections to output
2250 sections. The linker does that before
2251 adjust_dynamic_symbol is called, and it is that
2252 function which decides whether anything needs to go
2253 into these sections. */
2254 s->flags |= SEC_EXCLUDE;
2258 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2261 /* Allocate memory for the section contents. We use bfd_zalloc
2262 here in case unused entries are not reclaimed before the
2263 section's contents are written out. This should not happen,
2264 but this way if it does, we get a R_LM32_NONE reloc instead
2266 s->contents = bfd_zalloc (dynobj, s->size);
2267 if (s->contents == NULL)
2271 if (htab->root.dynamic_sections_created)
2273 /* Add some entries to the .dynamic section. We fill in the
2274 values later, in lm32_elf_finish_dynamic_sections, but we
2275 must add the entries now so that we get the correct size for
2276 the .dynamic section. The DT_DEBUG entry is filled in by the
2277 dynamic linker and used by the debugger. */
2278 #define add_dynamic_entry(TAG, VAL) \
2279 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2281 if (bfd_link_executable (info))
2283 if (! add_dynamic_entry (DT_DEBUG, 0))
2287 if (htab->splt->size != 0)
2289 if (! add_dynamic_entry (DT_PLTGOT, 0)
2290 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2291 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2292 || ! add_dynamic_entry (DT_JMPREL, 0))
2298 if (! add_dynamic_entry (DT_RELA, 0)
2299 || ! add_dynamic_entry (DT_RELASZ, 0)
2300 || ! add_dynamic_entry (DT_RELAENT,
2301 sizeof (Elf32_External_Rela)))
2304 /* If any dynamic relocs apply to a read-only section,
2305 then we need a DT_TEXTREL entry. */
2306 if ((info->flags & DF_TEXTREL) == 0)
2307 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2310 if ((info->flags & DF_TEXTREL) != 0)
2312 if (! add_dynamic_entry (DT_TEXTREL, 0))
2317 #undef add_dynamic_entry
2319 /* Allocate .rofixup section. */
2320 if (IS_FDPIC (output_bfd))
2322 struct weak_symbol_list *list_start = NULL, *list_end = NULL;
2323 int rgot_weak_count = 0;
2326 /* Look for deleted sections. */
2327 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2329 for (s = ibfd->sections; s != NULL; s = s->next)
2333 /* Count relocs that need .rofixup entires. */
2334 Elf_Internal_Rela *internal_relocs, *end;
2335 internal_relocs = elf_section_data (s)->relocs;
2336 if (internal_relocs == NULL)
2337 internal_relocs = (_bfd_elf_link_read_relocs (ibfd, s, NULL, NULL, FALSE));
2338 if (internal_relocs != NULL)
2340 end = internal_relocs + s->reloc_count;
2341 while (internal_relocs < end)
2343 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2344 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
2345 unsigned long r_symndx;
2346 struct elf_link_hash_entry *h;
2348 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2349 sym_hashes = elf_sym_hashes (ibfd);
2350 r_symndx = ELF32_R_SYM (internal_relocs->r_info);
2352 if (r_symndx < symtab_hdr->sh_info)
2357 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2358 while (h->root.type == bfd_link_hash_indirect
2359 || h->root.type == bfd_link_hash_warning)
2360 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2363 /* Don't generate entries for weak symbols. */
2364 if (!h || (h && h->root.type != bfd_link_hash_undefweak))
2366 if (!discarded_section (s) && !((bfd_get_section_flags (ibfd, s) & SEC_ALLOC) == 0))
2368 switch (ELF32_R_TYPE (internal_relocs->r_info))
2381 struct weak_symbol_list *current, *new_entry;
2382 /* Is this symbol already in the list? */
2383 for (current = list_start; current; current = current->next)
2385 if (!strcmp (current->name, h->root.root.string))
2388 if (!current && !discarded_section (s) && (bfd_get_section_flags (ibfd, s) & SEC_ALLOC))
2390 /* Will this have an entry in the GOT. */
2391 if (ELF32_R_TYPE (internal_relocs->r_info) == R_LM32_16_GOT)
2393 /* Create a new entry. */
2394 new_entry = malloc (sizeof (struct weak_symbol_list));
2397 new_entry->name = h->root.root.string;
2398 new_entry->next = NULL;
2400 if (list_start == NULL)
2402 list_start = new_entry;
2403 list_end = new_entry;
2407 list_end->next = new_entry;
2408 list_end = new_entry;
2410 /* Increase count of undefined weak symbols in the got. */
2426 list_end = list_start->next;
2428 list_start = list_end;
2431 /* Size sections. */
2432 lm32fdpic_fixup32_section (info)->size = (r32_count + (htab->sgot->size / 4) - rgot_weak_count + 1) * 4;
2433 if (lm32fdpic_fixup32_section (info)->size == 0)
2434 lm32fdpic_fixup32_section (info)->flags |= SEC_EXCLUDE;
2437 lm32fdpic_fixup32_section (info)->contents =
2438 bfd_zalloc (dynobj, lm32fdpic_fixup32_section (info)->size);
2439 if (lm32fdpic_fixup32_section (info)->contents == NULL)
2447 /* Create dynamic sections when linking against a dynamic object. */
2450 lm32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2452 struct elf_lm32_link_hash_table *htab;
2453 flagword flags, pltflags;
2455 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2456 int ptralign = 2; /* 32bit */
2458 htab = lm32_elf_hash_table (info);
2462 /* Make sure we have a GOT - For the case where we have a dynamic object
2463 but none of the relocs in check_relocs */
2464 if (! create_got_section (abfd, info))
2466 if (IS_FDPIC (abfd) && (htab->sfixup32 == NULL))
2468 if (! create_rofixup_section (abfd, info))
2472 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2473 .rel[a].bss sections. */
2474 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2475 | SEC_LINKER_CREATED);
2478 pltflags |= SEC_CODE;
2479 if (bed->plt_not_loaded)
2480 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2481 if (bed->plt_readonly)
2482 pltflags |= SEC_READONLY;
2484 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
2487 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
2490 if (bed->want_plt_sym)
2492 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2494 struct bfd_link_hash_entry *bh = NULL;
2495 struct elf_link_hash_entry *h;
2497 if (! (_bfd_generic_link_add_one_symbol
2498 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
2499 (bfd_vma) 0, NULL, FALSE,
2500 get_elf_backend_data (abfd)->collect, &bh)))
2502 h = (struct elf_link_hash_entry *) bh;
2504 h->type = STT_OBJECT;
2505 htab->root.hplt = h;
2507 if (bfd_link_pic (info)
2508 && ! bfd_elf_link_record_dynamic_symbol (info, h))
2512 s = bfd_make_section_anyway_with_flags (abfd,
2513 bed->default_use_rela_p
2514 ? ".rela.plt" : ".rel.plt",
2515 flags | SEC_READONLY);
2518 || ! bfd_set_section_alignment (abfd, s, ptralign))
2521 if (htab->sgot == NULL
2522 && ! create_got_section (abfd, info))
2525 if (bed->want_dynbss)
2527 /* The .dynbss section is a place to put symbols which are defined
2528 by dynamic objects, are referenced by regular objects, and are
2529 not functions. We must allocate space for them in the process
2530 image and use a R_*_COPY reloc to tell the dynamic linker to
2531 initialize them at run time. The linker script puts the .dynbss
2532 section into the .bss section of the final image. */
2533 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2534 SEC_ALLOC | SEC_LINKER_CREATED);
2538 /* The .rel[a].bss section holds copy relocs. This section is not
2539 normally needed. We need to create it here, though, so that the
2540 linker will map it to an output section. We can't just create it
2541 only if we need it, because we will not know whether we need it
2542 until we have seen all the input files, and the first time the
2543 main linker code calls BFD after examining all the input files
2544 (size_dynamic_sections) the input sections have already been
2545 mapped to the output sections. If the section turns out not to
2546 be needed, we can discard it later. We will never need this
2547 section when generating a shared object, since they do not use
2549 if (! bfd_link_pic (info))
2551 s = bfd_make_section_anyway_with_flags (abfd,
2552 (bed->default_use_rela_p
2553 ? ".rela.bss" : ".rel.bss"),
2554 flags | SEC_READONLY);
2557 || ! bfd_set_section_alignment (abfd, s, ptralign))
2565 /* Copy the extra info we tack onto an elf_link_hash_entry. */
2568 lm32_elf_copy_indirect_symbol (struct bfd_link_info *info,
2569 struct elf_link_hash_entry *dir,
2570 struct elf_link_hash_entry *ind)
2572 struct elf_lm32_link_hash_entry * edir;
2573 struct elf_lm32_link_hash_entry * eind;
2575 edir = (struct elf_lm32_link_hash_entry *) dir;
2576 eind = (struct elf_lm32_link_hash_entry *) ind;
2578 if (eind->dyn_relocs != NULL)
2580 if (edir->dyn_relocs != NULL)
2582 struct elf_lm32_dyn_relocs **pp;
2583 struct elf_lm32_dyn_relocs *p;
2585 /* Add reloc counts against the indirect sym to the direct sym
2586 list. Merge any entries against the same section. */
2587 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2589 struct elf_lm32_dyn_relocs *q;
2591 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2592 if (q->sec == p->sec)
2594 q->pc_count += p->pc_count;
2595 q->count += p->count;
2602 *pp = edir->dyn_relocs;
2605 edir->dyn_relocs = eind->dyn_relocs;
2606 eind->dyn_relocs = NULL;
2609 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2613 lm32_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
2615 if (!bfd_link_relocatable (info))
2617 if (!bfd_elf_stack_segment_size (output_bfd, info,
2618 "__stacksize", DEFAULT_STACK_SIZE))
2621 asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
2623 sec->size = info->stacksize >= 0 ? info->stacksize : 0;
2630 lm32_elf_fdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2634 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2635 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2638 if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
2641 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
2642 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
2645 /* Copy the stack size. */
2646 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
2647 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
2649 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
2651 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
2652 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
2654 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
2656 /* Rewrite the phdrs, since we're only called after they were first written. */
2657 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
2658 ->s->sizeof_ehdr, SEEK_SET) != 0
2659 || get_elf_backend_data (obfd)->s->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
2660 elf_elfheader (obfd)->e_phnum) != 0)
2672 #define ELF_ARCH bfd_arch_lm32
2673 #define ELF_TARGET_ID LM32_ELF_DATA
2674 #define ELF_MACHINE_CODE EM_LATTICEMICO32
2675 #define ELF_MAXPAGESIZE 0x1000
2677 #define TARGET_BIG_SYM lm32_elf32_vec
2678 #define TARGET_BIG_NAME "elf32-lm32"
2680 #define bfd_elf32_bfd_reloc_type_lookup lm32_reloc_type_lookup
2681 #define bfd_elf32_bfd_reloc_name_lookup lm32_reloc_name_lookup
2682 #define elf_info_to_howto lm32_info_to_howto_rela
2683 #define elf_info_to_howto_rel 0
2684 #define elf_backend_rela_normal 1
2685 #define elf_backend_object_p lm32_elf_object_p
2686 #define elf_backend_final_write_processing lm32_elf_final_write_processing
2687 #define elf_backend_stack_align 8
2688 #define elf_backend_can_gc_sections 1
2689 #define elf_backend_can_refcount 1
2690 #define elf_backend_gc_mark_hook lm32_elf_gc_mark_hook
2691 #define elf_backend_gc_sweep_hook lm32_elf_gc_sweep_hook
2692 #define elf_backend_plt_readonly 1
2693 #define elf_backend_want_got_plt 1
2694 #define elf_backend_want_plt_sym 0
2695 #define elf_backend_got_header_size 12
2696 #define bfd_elf32_bfd_link_hash_table_create lm32_elf_link_hash_table_create
2697 #define elf_backend_check_relocs lm32_elf_check_relocs
2698 #define elf_backend_reloc_type_class lm32_elf_reloc_type_class
2699 #define elf_backend_copy_indirect_symbol lm32_elf_copy_indirect_symbol
2700 #define elf_backend_size_dynamic_sections lm32_elf_size_dynamic_sections
2701 #define elf_backend_omit_section_dynsym ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
2702 #define elf_backend_create_dynamic_sections lm32_elf_create_dynamic_sections
2703 #define elf_backend_finish_dynamic_sections lm32_elf_finish_dynamic_sections
2704 #define elf_backend_adjust_dynamic_symbol lm32_elf_adjust_dynamic_symbol
2705 #define elf_backend_finish_dynamic_symbol lm32_elf_finish_dynamic_symbol
2706 #define elf_backend_relocate_section lm32_elf_relocate_section
2708 #include "elf32-target.h"
2710 #undef ELF_MAXPAGESIZE
2711 #define ELF_MAXPAGESIZE 0x4000
2714 #undef TARGET_BIG_SYM
2715 #define TARGET_BIG_SYM lm32_elf32_fdpic_vec
2716 #undef TARGET_BIG_NAME
2717 #define TARGET_BIG_NAME "elf32-lm32fdpic"
2719 #define elf32_bed elf32_lm32fdpic_bed
2721 #undef elf_backend_always_size_sections
2722 #define elf_backend_always_size_sections lm32_elf_always_size_sections
2723 #undef bfd_elf32_bfd_copy_private_bfd_data
2724 #define bfd_elf32_bfd_copy_private_bfd_data lm32_elf_fdpic_copy_private_bfd_data
2726 #include "elf32-target.h"