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 _bfd_error_handler (_("%B: invalid LM32 reloc number: %d"), abfd, r_type);
596 cache_ptr->howto = &lm32_elf_howto_table[r_type];
599 /* Set the right machine number for an Lattice Mico32 ELF file. */
602 lm32_elf_object_p (bfd *abfd)
604 return bfd_default_set_arch_mach (abfd, bfd_arch_lm32, bfd_mach_lm32);
607 /* Set machine type flags just before file is written out. */
610 lm32_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
612 elf_elfheader (abfd)->e_machine = EM_LATTICEMICO32;
613 elf_elfheader (abfd)->e_flags &=~ EF_LM32_MACH;
614 switch (bfd_get_mach (abfd))
617 elf_elfheader (abfd)->e_flags |= E_LM32_MACH;
624 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
625 dangerous relocation. */
628 lm32_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
634 /* If we've already figured out what GP will be, just return it. */
635 *pgp = _bfd_get_gp_value (output_bfd);
639 count = bfd_get_symcount (output_bfd);
640 sym = bfd_get_outsymbols (output_bfd);
642 /* The linker script will have created a symbol named `_gp' with the
643 appropriate value. */
648 for (i = 0; i < count; i++, sym++)
652 name = bfd_asymbol_name (*sym);
653 if (*name == '_' && strcmp (name, "_gp") == 0)
655 *pgp = bfd_asymbol_value (*sym);
656 _bfd_set_gp_value (output_bfd, *pgp);
664 /* Only get the error once. */
666 _bfd_set_gp_value (output_bfd, *pgp);
673 /* We have to figure out the gp value, so that we can adjust the
674 symbol value correctly. We look up the symbol _gp in the output
675 BFD. If we can't find it, we're stuck. We cache it in the ELF
676 target data. We don't need to adjust the symbol value for an
677 external symbol if we are producing relocatable output. */
679 static bfd_reloc_status_type
680 lm32_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
681 char **error_message, bfd_vma *pgp)
683 if (bfd_is_und_section (symbol->section) && !relocatable)
686 return bfd_reloc_undefined;
689 *pgp = _bfd_get_gp_value (output_bfd);
690 if (*pgp == 0 && (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0))
694 /* Make up a value. */
695 *pgp = symbol->section->output_section->vma + 0x4000;
696 _bfd_set_gp_value (output_bfd, *pgp);
698 else if (!lm32_elf_assign_gp (output_bfd, pgp))
702 _("global pointer relative relocation when _gp not defined");
703 return bfd_reloc_dangerous;
710 static bfd_reloc_status_type
711 lm32_elf_do_gprel_relocate (bfd *abfd,
712 reloc_howto_type *howto,
713 asection *input_section ATTRIBUTE_UNUSED,
716 bfd_vma symbol_value,
719 return _bfd_final_link_relocate (howto, abfd, input_section,
720 data, offset, symbol_value, addend);
723 static bfd_reloc_status_type
724 lm32_elf_gprel_reloc (bfd *abfd,
725 arelent *reloc_entry,
728 asection *input_section,
734 bfd_reloc_status_type r;
736 if (output_bfd != (bfd *) NULL
737 && (symbol->flags & BSF_SECTION_SYM) == 0
738 && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0))
740 reloc_entry->address += input_section->output_offset;
744 if (output_bfd != NULL)
747 relocation = symbol->value
748 + symbol->section->output_section->vma + symbol->section->output_offset;
751 lm32_elf_final_gp (abfd, symbol, FALSE, msg, &gp)) == bfd_reloc_ok)
753 relocation = relocation + reloc_entry->addend - gp;
754 reloc_entry->addend = 0;
755 if ((signed) relocation < -32768 || (signed) relocation > 32767)
757 *msg = _("global pointer relative address out of range");
758 r = bfd_reloc_outofrange;
762 r = lm32_elf_do_gprel_relocate (abfd, reloc_entry->howto,
764 data, reloc_entry->address,
765 relocation, reloc_entry->addend);
772 /* Find the segment number in which OSEC, and output section, is
776 _lm32fdpic_osec_to_segment (bfd *output_bfd, asection *osec)
778 struct elf_segment_map *m;
779 Elf_Internal_Phdr *p;
781 /* Find the segment that contains the output_section. */
782 for (m = elf_seg_map (output_bfd), p = elf_tdata (output_bfd)->phdr;
788 for (i = m->count - 1; i >= 0; i--)
789 if (m->sections[i] == osec)
796 return p - elf_tdata (output_bfd)->phdr;
799 /* Determine if an output section is read-only. */
801 inline static bfd_boolean
802 _lm32fdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
804 unsigned seg = _lm32fdpic_osec_to_segment (output_bfd, osec);
806 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
809 /* Relocate a section */
812 lm32_elf_relocate_section (bfd *output_bfd,
813 struct bfd_link_info *info,
815 asection *input_section,
817 Elf_Internal_Rela *relocs,
818 Elf_Internal_Sym *local_syms,
819 asection **local_sections)
821 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
822 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
823 Elf_Internal_Rela *rel, *relend;
824 struct elf_lm32_link_hash_table *htab = lm32_elf_hash_table (info);
826 bfd_vma *local_got_offsets;
832 dynobj = htab->root.dynobj;
833 local_got_offsets = elf_local_got_offsets (input_bfd);
837 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
838 sym_hashes = elf_sym_hashes (input_bfd);
841 relend = relocs + input_section->reloc_count;
842 for (; rel < relend; rel++)
844 reloc_howto_type *howto;
846 unsigned long r_symndx;
847 Elf_Internal_Sym *sym;
849 struct elf_link_hash_entry *h;
852 bfd_reloc_status_type r;
853 const char *name = NULL;
855 r_symndx = ELF32_R_SYM (rel->r_info);
856 r_type = ELF32_R_TYPE (rel->r_info);
858 if (r_type == R_LM32_GNU_VTENTRY
859 || r_type == R_LM32_GNU_VTINHERIT )
866 howto = lm32_elf_howto_table + r_type;
868 if (r_symndx < symtab_hdr->sh_info)
870 /* It's a local symbol. */
871 sym = local_syms + r_symndx;
872 sec = local_sections[r_symndx];
873 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
874 name = bfd_elf_string_from_elf_section
875 (input_bfd, symtab_hdr->sh_link, sym->st_name);
876 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
880 /* It's a global symbol. */
881 bfd_boolean unresolved_reloc;
882 bfd_boolean warned, ignored;
884 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
885 r_symndx, symtab_hdr, sym_hashes,
887 unresolved_reloc, warned, ignored);
888 name = h->root.root.string;
891 if (sec != NULL && discarded_section (sec))
892 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
893 rel, 1, relend, howto, 0, contents);
895 if (bfd_link_relocatable (info))
897 /* This is a relocatable link. We don't have to change
898 anything, unless the reloc is against a section symbol,
899 in which case we have to adjust according to where the
900 section symbol winds up in the output section. */
901 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
904 /* If partial_inplace, we need to store any additional addend
905 back in the section. */
906 if (! howto->partial_inplace)
909 /* Shouldn't reach here. */
918 if (!lm32_elf_assign_gp (output_bfd, &gp))
919 r = bfd_reloc_dangerous;
922 relocation = relocation + rel->r_addend - gp;
924 if ((signed)relocation < -32768 || (signed)relocation > 32767)
925 r = bfd_reloc_outofrange;
928 r = _bfd_final_link_relocate (howto, input_bfd,
929 input_section, contents,
930 rel->r_offset, relocation,
936 /* Relocation is to the entry for this symbol in the global
938 BFD_ASSERT (sgot != NULL);
945 BFD_ASSERT (off != (bfd_vma) -1);
947 dyn = htab->root.dynamic_sections_created;
948 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
951 || (bfd_link_pic (info)
957 /* This is actually a static link, or it is a
958 -Bsymbolic link and the symbol is defined
959 locally, or the symbol was forced to be local
960 because of a version file. We must initialize
961 this entry in the global offset table. Since the
962 offset must always be a multiple of 4, we use the
963 least significant bit to record whether we have
964 initialized it already.
966 When doing a dynamic link, we create a .rela.got
967 relocation entry to initialize the value. This
968 is done in the finish_dynamic_symbol routine. */
973 /* Write entry in GOT */
974 bfd_put_32 (output_bfd, relocation,
975 sgot->contents + off);
976 /* Create entry in .rofixup pointing to GOT entry. */
977 if (IS_FDPIC (output_bfd) && h->root.type != bfd_link_hash_undefweak)
979 _lm32fdpic_add_rofixup (output_bfd,
980 lm32fdpic_fixup32_section
982 sgot->output_section->vma
983 + sgot->output_offset
986 /* Mark GOT entry as having been written. */
991 relocation = sgot->output_offset + off;
998 BFD_ASSERT (local_got_offsets != NULL
999 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1001 /* Get offset into GOT table. */
1002 off = local_got_offsets[r_symndx];
1004 /* The offset must always be a multiple of 4. We use
1005 the least significant bit to record whether we have
1006 already processed this entry. */
1011 /* Write entry in GOT. */
1012 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1013 /* Create entry in .rofixup pointing to GOT entry. */
1014 if (IS_FDPIC (output_bfd))
1016 _lm32fdpic_add_rofixup (output_bfd,
1017 lm32fdpic_fixup32_section
1019 sgot->output_section->vma
1020 + sgot->output_offset
1024 if (bfd_link_pic (info))
1027 Elf_Internal_Rela outrel;
1029 /* We need to generate a R_LM32_RELATIVE reloc
1030 for the dynamic linker. */
1031 srelgot = bfd_get_linker_section (dynobj,
1033 BFD_ASSERT (srelgot != NULL);
1035 outrel.r_offset = (sgot->output_section->vma
1036 + sgot->output_offset
1038 outrel.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
1039 outrel.r_addend = relocation;
1040 loc = srelgot->contents;
1041 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
1042 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
1043 ++srelgot->reloc_count;
1046 local_got_offsets[r_symndx] |= 1;
1050 relocation = sgot->output_offset + off;
1053 /* Addend should be zero. */
1054 if (rel->r_addend != 0)
1055 (*_bfd_error_handler) (_("internal error: addend should be zero for R_LM32_16_GOT"));
1057 r = _bfd_final_link_relocate (howto,
1066 case R_LM32_GOTOFF_LO16:
1067 case R_LM32_GOTOFF_HI16:
1068 /* Relocation is offset from GOT. */
1069 BFD_ASSERT (sgot != NULL);
1070 relocation -= sgot->output_section->vma;
1071 /* Account for sign-extension. */
1072 if ((r_type == R_LM32_GOTOFF_HI16)
1073 && ((relocation + rel->r_addend) & 0x8000))
1074 rel->r_addend += 0x10000;
1075 r = _bfd_final_link_relocate (howto,
1085 if (IS_FDPIC (output_bfd))
1087 if ((!h) || (h && h->root.type != bfd_link_hash_undefweak))
1089 /* Only create .rofixup entries for relocs in loadable sections. */
1090 if ((bfd_get_section_flags (output_bfd, input_section->output_section)
1091 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
1094 /* Check address to be modified is writable. */
1095 if (_lm32fdpic_osec_readonly_p (output_bfd,
1099 info->callbacks->warning
1101 _("cannot emit dynamic relocations in read-only section"),
1102 name, input_bfd, input_section, rel->r_offset);
1105 /* Create entry in .rofixup section. */
1106 _lm32fdpic_add_rofixup (output_bfd,
1107 lm32fdpic_fixup32_section (info),
1108 input_section->output_section->vma
1109 + input_section->output_offset
1117 r = _bfd_final_link_relocate (howto,
1128 if (r != bfd_reloc_ok)
1130 const char *msg = NULL;
1133 lm32_info_to_howto_rela (input_bfd, &bfd_reloc, rel);
1134 howto = bfd_reloc.howto;
1137 name = h->root.root.string;
1140 name = (bfd_elf_string_from_elf_section
1141 (input_bfd, symtab_hdr->sh_link, sym->st_name));
1142 if (name == NULL || *name == '\0')
1143 name = bfd_section_name (input_bfd, sec);
1148 case bfd_reloc_overflow:
1150 && (h->root.type == bfd_link_hash_undefweak))
1152 if (! ((*info->callbacks->reloc_overflow)
1153 (info, (h ? &h->root : NULL), name, howto->name,
1154 (bfd_vma) 0, input_bfd, input_section, rel->r_offset)))
1158 case bfd_reloc_undefined:
1159 if (! ((*info->callbacks->undefined_symbol)
1160 (info, name, input_bfd, input_section,
1161 rel->r_offset, TRUE)))
1165 case bfd_reloc_outofrange:
1166 msg = _("internal error: out of range error");
1169 case bfd_reloc_notsupported:
1170 msg = _("internal error: unsupported relocation error");
1173 case bfd_reloc_dangerous:
1174 msg = _("internal error: dangerous error");
1178 msg = _("internal error: unknown error");
1182 if (!((*info->callbacks->warning)
1183 (info, msg, name, input_bfd, input_section,
1195 lm32_elf_gc_mark_hook (asection *sec,
1196 struct bfd_link_info *info,
1197 Elf_Internal_Rela *rel,
1198 struct elf_link_hash_entry *h,
1199 Elf_Internal_Sym *sym)
1202 switch (ELF32_R_TYPE (rel->r_info))
1204 case R_LM32_GNU_VTINHERIT:
1205 case R_LM32_GNU_VTENTRY:
1209 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1213 lm32_elf_gc_sweep_hook (bfd *abfd,
1214 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1216 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
1218 /* Update the got entry reference counts for the section being removed. */
1219 Elf_Internal_Shdr *symtab_hdr;
1220 struct elf_link_hash_entry **sym_hashes;
1221 bfd_signed_vma *local_got_refcounts;
1222 const Elf_Internal_Rela *rel, *relend;
1224 elf_section_data (sec)->local_dynrel = NULL;
1226 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1227 sym_hashes = elf_sym_hashes (abfd);
1228 local_got_refcounts = elf_local_got_refcounts (abfd);
1230 relend = relocs + sec->reloc_count;
1231 for (rel = relocs; rel < relend; rel++)
1233 unsigned long r_symndx;
1234 struct elf_link_hash_entry *h = NULL;
1236 r_symndx = ELF32_R_SYM (rel->r_info);
1237 if (r_symndx >= symtab_hdr->sh_info)
1239 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1240 while (h->root.type == bfd_link_hash_indirect
1241 || h->root.type == bfd_link_hash_warning)
1242 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1245 switch (ELF32_R_TYPE (rel->r_info))
1250 if (h->got.refcount > 0)
1255 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
1256 local_got_refcounts[r_symndx]--;
1267 /* Look through the relocs for a section during the first phase. */
1270 lm32_elf_check_relocs (bfd *abfd,
1271 struct bfd_link_info *info,
1273 const Elf_Internal_Rela *relocs)
1275 Elf_Internal_Shdr *symtab_hdr;
1276 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
1277 const Elf_Internal_Rela *rel;
1278 const Elf_Internal_Rela *rel_end;
1279 struct elf_lm32_link_hash_table *htab;
1282 if (bfd_link_relocatable (info))
1285 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1286 sym_hashes = elf_sym_hashes (abfd);
1287 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
1288 if (!elf_bad_symtab (abfd))
1289 sym_hashes_end -= symtab_hdr->sh_info;
1291 htab = lm32_elf_hash_table (info);
1295 dynobj = htab->root.dynobj;
1297 rel_end = relocs + sec->reloc_count;
1298 for (rel = relocs; rel < rel_end; rel++)
1301 struct elf_link_hash_entry *h;
1302 unsigned long r_symndx;
1304 r_symndx = ELF32_R_SYM (rel->r_info);
1305 r_type = ELF32_R_TYPE (rel->r_info);
1306 if (r_symndx < symtab_hdr->sh_info)
1310 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1311 while (h->root.type == bfd_link_hash_indirect
1312 || h->root.type == bfd_link_hash_warning)
1313 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1315 /* PR15323, ref flags aren't set for references in the same
1317 h->root.non_ir_ref = 1;
1320 /* Some relocs require a global offset table. */
1321 if (htab->sgot == NULL)
1326 case R_LM32_GOTOFF_HI16:
1327 case R_LM32_GOTOFF_LO16:
1329 htab->root.dynobj = dynobj = abfd;
1330 if (! create_got_section (dynobj, info))
1336 /* Some relocs require a rofixup table. */
1337 if (IS_FDPIC (abfd))
1342 /* FDPIC requires a GOT if there is a .rofixup section
1343 (Normal ELF doesn't). */
1345 htab->root.dynobj = dynobj = abfd;
1346 if (! create_got_section (dynobj, info))
1348 /* Create .rofixup section */
1349 if (htab->sfixup32 == NULL)
1351 if (! create_rofixup_section (dynobj, info))
1356 case R_LM32_GOTOFF_HI16:
1357 case R_LM32_GOTOFF_LO16:
1358 /* Create .rofixup section. */
1359 if (htab->sfixup32 == NULL)
1362 htab->root.dynobj = dynobj = abfd;
1363 if (! create_rofixup_section (dynobj, info))
1374 h->got.refcount += 1;
1377 bfd_signed_vma *local_got_refcounts;
1379 /* This is a global offset table entry for a local symbol. */
1380 local_got_refcounts = elf_local_got_refcounts (abfd);
1381 if (local_got_refcounts == NULL)
1385 size = symtab_hdr->sh_info;
1386 size *= sizeof (bfd_signed_vma);
1387 local_got_refcounts = bfd_zalloc (abfd, size);
1388 if (local_got_refcounts == NULL)
1390 elf_local_got_refcounts (abfd) = local_got_refcounts;
1392 local_got_refcounts[r_symndx] += 1;
1396 /* This relocation describes the C++ object vtable hierarchy.
1397 Reconstruct it for later use during GC. */
1398 case R_LM32_GNU_VTINHERIT:
1399 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1403 /* This relocation describes which C++ vtable entries are actually
1404 used. Record for later use during GC. */
1405 case R_LM32_GNU_VTENTRY:
1406 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1416 /* Finish up the dynamic sections. */
1419 lm32_elf_finish_dynamic_sections (bfd *output_bfd,
1420 struct bfd_link_info *info)
1422 struct elf_lm32_link_hash_table *htab;
1427 htab = lm32_elf_hash_table (info);
1431 dynobj = htab->root.dynobj;
1433 sgot = htab->sgotplt;
1434 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
1436 if (htab->root.dynamic_sections_created)
1439 Elf32_External_Dyn *dyncon, *dynconend;
1441 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1443 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1444 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1446 for (; dyncon < dynconend; dyncon++)
1448 Elf_Internal_Dyn dyn;
1451 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1459 s = htab->sgot->output_section;
1462 s = htab->srelplt->output_section;
1464 BFD_ASSERT (s != NULL);
1465 dyn.d_un.d_ptr = s->vma;
1466 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1470 s = htab->srelplt->output_section;
1471 BFD_ASSERT (s != NULL);
1472 dyn.d_un.d_val = s->size;
1473 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1477 /* My reading of the SVR4 ABI indicates that the
1478 procedure linkage table relocs (DT_JMPREL) should be
1479 included in the overall relocs (DT_RELA). This is
1480 what Solaris does. However, UnixWare can not handle
1481 that case. Therefore, we override the DT_RELASZ entry
1482 here to make it not include the JMPREL relocs. Since
1483 the linker script arranges for .rela.plt to follow all
1484 other relocation sections, we don't have to worry
1485 about changing the DT_RELA entry. */
1486 if (htab->srelplt != NULL)
1488 s = htab->srelplt->output_section;
1489 dyn.d_un.d_val -= s->size;
1491 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1496 /* Fill in the first entry in the procedure linkage table. */
1498 if (splt && splt->size > 0)
1500 if (bfd_link_pic (info))
1502 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
1503 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
1504 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
1505 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
1506 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
1511 /* addr = .got + 4 */
1512 addr = sgot->output_section->vma + sgot->output_offset + 4;
1513 bfd_put_32 (output_bfd,
1514 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1516 bfd_put_32 (output_bfd,
1517 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1518 splt->contents + 4);
1519 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1520 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1521 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1524 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
1529 /* Fill in the first three entries in the global offset table. */
1530 if (sgot && sgot->size > 0)
1533 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1535 bfd_put_32 (output_bfd,
1536 sdyn->output_section->vma + sdyn->output_offset,
1538 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1539 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1541 /* FIXME: This can be null if create_dynamic_sections wasn't called. */
1542 if (elf_section_data (sgot->output_section) != NULL)
1543 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1546 if (lm32fdpic_fixup32_section (info))
1548 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
1549 bfd_vma got_value = hgot->root.u.def.value
1550 + hgot->root.u.def.section->output_section->vma
1551 + hgot->root.u.def.section->output_offset;
1552 struct bfd_link_hash_entry *hend;
1554 /* Last entry is pointer to GOT. */
1555 _lm32fdpic_add_rofixup (output_bfd, lm32fdpic_fixup32_section (info), got_value);
1557 /* Check we wrote enough entries. */
1558 if (lm32fdpic_fixup32_section (info)->size
1559 != (lm32fdpic_fixup32_section (info)->reloc_count * 4))
1561 (*_bfd_error_handler)
1562 ("LINKER BUG: .rofixup section size mismatch: size/4 %d != relocs %d",
1563 lm32fdpic_fixup32_section (info)->size/4,
1564 lm32fdpic_fixup32_section (info)->reloc_count);
1568 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
1569 FALSE, FALSE, TRUE);
1571 && (hend->type == bfd_link_hash_defined
1572 || hend->type == bfd_link_hash_defweak))
1575 lm32fdpic_fixup32_section (info)->output_section->vma
1576 + lm32fdpic_fixup32_section (info)->output_offset
1577 + lm32fdpic_fixup32_section (info)->size
1578 - hend->u.def.section->output_section->vma
1579 - hend->u.def.section->output_offset;
1580 BFD_ASSERT (hend->u.def.value == value);
1581 if (hend->u.def.value != value)
1583 (*_bfd_error_handler)
1584 ("LINKER BUG: .rofixup section hend->u.def.value != value: %ld != %ld", hend->u.def.value, value);
1593 /* Finish up dynamic symbol handling. We set the contents of various
1594 dynamic sections here. */
1597 lm32_elf_finish_dynamic_symbol (bfd *output_bfd,
1598 struct bfd_link_info *info,
1599 struct elf_link_hash_entry *h,
1600 Elf_Internal_Sym *sym)
1602 struct elf_lm32_link_hash_table *htab;
1605 htab = lm32_elf_hash_table (info);
1609 if (h->plt.offset != (bfd_vma) -1)
1617 Elf_Internal_Rela rela;
1619 /* This symbol has an entry in the procedure linkage table. Set
1621 BFD_ASSERT (h->dynindx != -1);
1624 sgot = htab->sgotplt;
1625 srela = htab->srelplt;
1626 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1628 /* Get the index in the procedure linkage table which
1629 corresponds to this symbol. This is the index of this symbol
1630 in all the symbols for which we are making plt entries. The
1631 first entry in the procedure linkage table is reserved. */
1632 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1634 /* Get the offset into the .got table of the entry that
1635 corresponds to this function. Each .got entry is 4 bytes.
1636 The first three are reserved. */
1637 got_offset = (plt_index + 3) * 4;
1639 /* Fill in the entry in the procedure linkage table. */
1640 if (! bfd_link_pic (info))
1649 /* Fill in the entry in the global offset table. */
1650 bfd_put_32 (output_bfd,
1651 (splt->output_section->vma
1652 + splt->output_offset
1654 + 12), /* same offset */
1655 sgot->contents + got_offset);
1657 /* Fill in the entry in the .rela.plt section. */
1658 rela.r_offset = (sgot->output_section->vma
1659 + sgot->output_offset
1661 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_JMP_SLOT);
1663 loc = srela->contents;
1664 loc += plt_index * sizeof (Elf32_External_Rela);
1665 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1667 if (!h->def_regular)
1669 /* Mark the symbol as undefined, rather than as defined in
1670 the .plt section. Leave the value alone. */
1671 sym->st_shndx = SHN_UNDEF;
1676 if (h->got.offset != (bfd_vma) -1)
1680 Elf_Internal_Rela rela;
1682 /* This symbol has an entry in the global offset table. Set it
1685 srela = htab->srelgot;
1686 BFD_ASSERT (sgot != NULL && srela != NULL);
1688 rela.r_offset = (sgot->output_section->vma
1689 + sgot->output_offset
1690 + (h->got.offset &~ 1));
1692 /* If this is a -Bsymbolic link, and the symbol is defined
1693 locally, we just want to emit a RELATIVE reloc. Likewise if
1694 the symbol was forced to be local because of a version file.
1695 The entry in the global offset table will already have been
1696 initialized in the relocate_section function. */
1697 if (bfd_link_pic (info)
1703 rela.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
1704 rela.r_addend = (h->root.u.def.value
1705 + h->root.u.def.section->output_section->vma
1706 + h->root.u.def.section->output_offset);
1710 BFD_ASSERT ((h->got.offset & 1) == 0);
1711 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1712 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_GLOB_DAT);
1716 loc = srela->contents;
1717 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1718 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1719 ++srela->reloc_count;
1725 Elf_Internal_Rela rela;
1727 /* This symbols needs a copy reloc. Set it up. */
1728 BFD_ASSERT (h->dynindx != -1
1729 && (h->root.type == bfd_link_hash_defined
1730 || h->root.type == bfd_link_hash_defweak));
1732 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
1733 BFD_ASSERT (s != NULL);
1735 rela.r_offset = (h->root.u.def.value
1736 + h->root.u.def.section->output_section->vma
1737 + h->root.u.def.section->output_offset);
1738 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_COPY);
1741 loc += s->reloc_count * sizeof (Elf32_External_Rela);
1742 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1746 /* Mark some specially defined symbols as absolute. */
1747 if (h == htab->root.hdynamic || h == htab->root.hgot)
1748 sym->st_shndx = SHN_ABS;
1753 static enum elf_reloc_type_class
1754 lm32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1755 const asection *rel_sec ATTRIBUTE_UNUSED,
1756 const Elf_Internal_Rela *rela)
1758 switch ((int) ELF32_R_TYPE (rela->r_info))
1760 case R_LM32_RELATIVE: return reloc_class_relative;
1761 case R_LM32_JMP_SLOT: return reloc_class_plt;
1762 case R_LM32_COPY: return reloc_class_copy;
1763 default: return reloc_class_normal;
1767 /* Adjust a symbol defined by a dynamic object and referenced by a
1768 regular object. The current definition is in some section of the
1769 dynamic object, but we're not including those sections. We have to
1770 change the definition to something the rest of the link can
1774 lm32_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1775 struct elf_link_hash_entry *h)
1777 struct elf_lm32_link_hash_table *htab;
1778 struct elf_lm32_link_hash_entry *eh;
1779 struct elf_lm32_dyn_relocs *p;
1783 dynobj = elf_hash_table (info)->dynobj;
1785 /* Make sure we know what is going on here. */
1786 BFD_ASSERT (dynobj != NULL
1788 || h->u.weakdef != NULL
1791 && !h->def_regular)));
1793 /* If this is a function, put it in the procedure linkage table. We
1794 will fill in the contents of the procedure linkage table later,
1795 when we know the address of the .got section. */
1796 if (h->type == STT_FUNC
1799 if (! bfd_link_pic (info)
1802 && h->root.type != bfd_link_hash_undefweak
1803 && h->root.type != bfd_link_hash_undefined)
1805 /* This case can occur if we saw a PLT reloc in an input
1806 file, but the symbol was never referred to by a dynamic
1807 object. In such a case, we don't actually need to build
1808 a procedure linkage table, and we can just do a PCREL
1810 h->plt.offset = (bfd_vma) -1;
1817 h->plt.offset = (bfd_vma) -1;
1819 /* If this is a weak symbol, and there is a real definition, the
1820 processor independent code will have arranged for us to see the
1821 real definition first, and we can just use the same value. */
1822 if (h->u.weakdef != NULL)
1824 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1825 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1826 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1827 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1831 /* This is a reference to a symbol defined by a dynamic object which
1832 is not a function. */
1834 /* If we are creating a shared library, we must presume that the
1835 only references to the symbol are via the global offset table.
1836 For such cases we need not do anything here; the relocations will
1837 be handled correctly by relocate_section. */
1838 if (bfd_link_pic (info))
1841 /* If there are no references to this symbol that do not use the
1842 GOT, we don't need to generate a copy reloc. */
1843 if (!h->non_got_ref)
1846 /* If -z nocopyreloc was given, we won't generate them either. */
1847 if (info->nocopyreloc)
1853 eh = (struct elf_lm32_link_hash_entry *) h;
1854 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1856 s = p->sec->output_section;
1857 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1861 /* If we didn't find any dynamic relocs in sections which needs the
1862 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1870 /* We must allocate the symbol in our .dynbss section, which will
1871 become part of the .bss section of the executable. There will be
1872 an entry for this symbol in the .dynsym section. The dynamic
1873 object will contain position independent code, so all references
1874 from the dynamic object to this symbol will go through the global
1875 offset table. The dynamic linker will use the .dynsym entry to
1876 determine the address it must put in the global offset table, so
1877 both the dynamic object and the regular object will refer to the
1878 same memory location for the variable. */
1880 htab = lm32_elf_hash_table (info);
1885 BFD_ASSERT (s != NULL);
1887 /* We must generate a R_LM32_COPY reloc to tell the dynamic linker
1888 to copy the initial value out of the dynamic object and into the
1889 runtime process image. We need to remember the offset into the
1890 .rela.bss section we are going to use. */
1891 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1895 srel = htab->srelbss;
1896 BFD_ASSERT (srel != NULL);
1897 srel->size += sizeof (Elf32_External_Rela);
1901 return _bfd_elf_adjust_dynamic_copy (info, h, s);
1904 /* Allocate space in .plt, .got and associated reloc sections for
1908 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1910 struct bfd_link_info *info;
1911 struct elf_lm32_link_hash_table *htab;
1912 struct elf_lm32_link_hash_entry *eh;
1913 struct elf_lm32_dyn_relocs *p;
1915 if (h->root.type == bfd_link_hash_indirect)
1918 info = (struct bfd_link_info *) inf;
1919 htab = lm32_elf_hash_table (info);
1923 eh = (struct elf_lm32_link_hash_entry *) h;
1925 if (htab->root.dynamic_sections_created
1926 && h->plt.refcount > 0)
1928 /* Make sure this symbol is output as a dynamic symbol.
1929 Undefined weak syms won't yet be marked as dynamic. */
1930 if (h->dynindx == -1
1931 && !h->forced_local)
1933 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1937 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
1939 asection *s = htab->splt;
1941 /* If this is the first .plt entry, make room for the special
1944 s->size += PLT_ENTRY_SIZE;
1946 h->plt.offset = s->size;
1948 /* If this symbol is not defined in a regular file, and we are
1949 not generating a shared library, then set the symbol to this
1950 location in the .plt. This is required to make function
1951 pointers compare as equal between the normal executable and
1952 the shared library. */
1953 if (! bfd_link_pic (info)
1956 h->root.u.def.section = s;
1957 h->root.u.def.value = h->plt.offset;
1960 /* Make room for this entry. */
1961 s->size += PLT_ENTRY_SIZE;
1963 /* We also need to make an entry in the .got.plt section, which
1964 will be placed in the .got section by the linker script. */
1965 htab->sgotplt->size += 4;
1967 /* We also need to make an entry in the .rel.plt section. */
1968 htab->srelplt->size += sizeof (Elf32_External_Rela);
1972 h->plt.offset = (bfd_vma) -1;
1978 h->plt.offset = (bfd_vma) -1;
1982 if (h->got.refcount > 0)
1987 /* Make sure this symbol is output as a dynamic symbol.
1988 Undefined weak syms won't yet be marked as dynamic. */
1989 if (h->dynindx == -1
1990 && !h->forced_local)
1992 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1998 h->got.offset = s->size;
2000 dyn = htab->root.dynamic_sections_created;
2001 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
2002 htab->srelgot->size += sizeof (Elf32_External_Rela);
2005 h->got.offset = (bfd_vma) -1;
2007 if (eh->dyn_relocs == NULL)
2010 /* In the shared -Bsymbolic case, discard space allocated for
2011 dynamic pc-relative relocs against symbols which turn out to be
2012 defined in regular objects. For the normal shared case, discard
2013 space for pc-relative relocs that have become local due to symbol
2014 visibility changes. */
2016 if (bfd_link_pic (info))
2022 struct elf_lm32_dyn_relocs **pp;
2024 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2026 p->count -= p->pc_count;
2035 /* Also discard relocs on undefined weak syms with non-default
2037 if (eh->dyn_relocs != NULL
2038 && h->root.type == bfd_link_hash_undefweak)
2040 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2041 eh->dyn_relocs = NULL;
2043 /* Make sure undefined weak symbols are output as a dynamic
2045 else if (h->dynindx == -1
2046 && !h->forced_local)
2048 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2055 /* For the non-shared case, discard space for relocs against
2056 symbols which turn out to need copy relocs or are not
2062 || (htab->root.dynamic_sections_created
2063 && (h->root.type == bfd_link_hash_undefweak
2064 || h->root.type == bfd_link_hash_undefined))))
2066 /* Make sure this symbol is output as a dynamic symbol.
2067 Undefined weak syms won't yet be marked as dynamic. */
2068 if (h->dynindx == -1
2069 && !h->forced_local)
2071 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2075 /* If that succeeded, we know we'll be keeping all the
2077 if (h->dynindx != -1)
2081 eh->dyn_relocs = NULL;
2086 /* Finally, allocate space. */
2087 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2089 asection *sreloc = elf_section_data (p->sec)->sreloc;
2090 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2096 /* Find any dynamic relocs that apply to read-only sections. */
2099 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2101 struct elf_lm32_link_hash_entry *eh;
2102 struct elf_lm32_dyn_relocs *p;
2104 eh = (struct elf_lm32_link_hash_entry *) h;
2105 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2107 asection *s = p->sec->output_section;
2109 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2111 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2113 info->flags |= DF_TEXTREL;
2115 /* Not an error, just cut short the traversal. */
2122 /* Set the sizes of the dynamic sections. */
2125 lm32_elf_size_dynamic_sections (bfd *output_bfd,
2126 struct bfd_link_info *info)
2128 struct elf_lm32_link_hash_table *htab;
2134 htab = lm32_elf_hash_table (info);
2138 dynobj = htab->root.dynobj;
2139 BFD_ASSERT (dynobj != NULL);
2141 if (htab->root.dynamic_sections_created)
2143 /* Set the contents of the .interp section to the interpreter. */
2144 if (bfd_link_executable (info) && !info->nointerp)
2146 s = bfd_get_linker_section (dynobj, ".interp");
2147 BFD_ASSERT (s != NULL);
2148 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2149 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2153 /* Set up .got offsets for local syms, and space for local dynamic
2155 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2157 bfd_signed_vma *local_got;
2158 bfd_signed_vma *end_local_got;
2159 bfd_size_type locsymcount;
2160 Elf_Internal_Shdr *symtab_hdr;
2163 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2166 for (s = ibfd->sections; s != NULL; s = s->next)
2168 struct elf_lm32_dyn_relocs *p;
2170 for (p = ((struct elf_lm32_dyn_relocs *)
2171 elf_section_data (s)->local_dynrel);
2175 if (! bfd_is_abs_section (p->sec)
2176 && bfd_is_abs_section (p->sec->output_section))
2178 /* Input section has been discarded, either because
2179 it is a copy of a linkonce section or due to
2180 linker script /DISCARD/, so we'll be discarding
2183 else if (p->count != 0)
2185 srel = elf_section_data (p->sec)->sreloc;
2186 srel->size += p->count * sizeof (Elf32_External_Rela);
2187 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2188 info->flags |= DF_TEXTREL;
2193 local_got = elf_local_got_refcounts (ibfd);
2197 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2198 locsymcount = symtab_hdr->sh_info;
2199 end_local_got = local_got + locsymcount;
2201 srel = htab->srelgot;
2202 for (; local_got < end_local_got; ++local_got)
2206 *local_got = s->size;
2208 if (bfd_link_pic (info))
2209 srel->size += sizeof (Elf32_External_Rela);
2212 *local_got = (bfd_vma) -1;
2216 /* Allocate global sym .plt and .got entries, and space for global
2217 sym dynamic relocs. */
2218 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2220 /* We now have determined the sizes of the various dynamic sections.
2221 Allocate memory for them. */
2223 for (s = dynobj->sections; s != NULL; s = s->next)
2225 if ((s->flags & SEC_LINKER_CREATED) == 0)
2230 || s == htab->sgotplt
2231 || s == htab->sdynbss)
2233 /* Strip this section if we don't need it; see the
2236 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2238 if (s->size != 0 && s != htab->srelplt)
2241 /* We use the reloc_count field as a counter if we need
2242 to copy relocs into the output file. */
2246 /* It's not one of our sections, so don't allocate space. */
2251 /* If we don't need this section, strip it from the
2252 output file. This is mostly to handle .rela.bss and
2253 .rela.plt. We must create both sections in
2254 create_dynamic_sections, because they must be created
2255 before the linker maps input sections to output
2256 sections. The linker does that before
2257 adjust_dynamic_symbol is called, and it is that
2258 function which decides whether anything needs to go
2259 into these sections. */
2260 s->flags |= SEC_EXCLUDE;
2264 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2267 /* Allocate memory for the section contents. We use bfd_zalloc
2268 here in case unused entries are not reclaimed before the
2269 section's contents are written out. This should not happen,
2270 but this way if it does, we get a R_LM32_NONE reloc instead
2272 s->contents = bfd_zalloc (dynobj, s->size);
2273 if (s->contents == NULL)
2277 if (htab->root.dynamic_sections_created)
2279 /* Add some entries to the .dynamic section. We fill in the
2280 values later, in lm32_elf_finish_dynamic_sections, but we
2281 must add the entries now so that we get the correct size for
2282 the .dynamic section. The DT_DEBUG entry is filled in by the
2283 dynamic linker and used by the debugger. */
2284 #define add_dynamic_entry(TAG, VAL) \
2285 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2287 if (bfd_link_executable (info))
2289 if (! add_dynamic_entry (DT_DEBUG, 0))
2293 if (htab->splt->size != 0)
2295 if (! add_dynamic_entry (DT_PLTGOT, 0)
2296 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2297 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2298 || ! add_dynamic_entry (DT_JMPREL, 0))
2304 if (! add_dynamic_entry (DT_RELA, 0)
2305 || ! add_dynamic_entry (DT_RELASZ, 0)
2306 || ! add_dynamic_entry (DT_RELAENT,
2307 sizeof (Elf32_External_Rela)))
2310 /* If any dynamic relocs apply to a read-only section,
2311 then we need a DT_TEXTREL entry. */
2312 if ((info->flags & DF_TEXTREL) == 0)
2313 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2316 if ((info->flags & DF_TEXTREL) != 0)
2318 if (! add_dynamic_entry (DT_TEXTREL, 0))
2323 #undef add_dynamic_entry
2325 /* Allocate .rofixup section. */
2326 if (IS_FDPIC (output_bfd))
2328 struct weak_symbol_list *list_start = NULL, *list_end = NULL;
2329 int rgot_weak_count = 0;
2332 /* Look for deleted sections. */
2333 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2335 for (s = ibfd->sections; s != NULL; s = s->next)
2339 /* Count relocs that need .rofixup entires. */
2340 Elf_Internal_Rela *internal_relocs, *end;
2341 internal_relocs = elf_section_data (s)->relocs;
2342 if (internal_relocs == NULL)
2343 internal_relocs = (_bfd_elf_link_read_relocs (ibfd, s, NULL, NULL, FALSE));
2344 if (internal_relocs != NULL)
2346 end = internal_relocs + s->reloc_count;
2347 while (internal_relocs < end)
2349 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2350 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
2351 unsigned long r_symndx;
2352 struct elf_link_hash_entry *h;
2354 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2355 sym_hashes = elf_sym_hashes (ibfd);
2356 r_symndx = ELF32_R_SYM (internal_relocs->r_info);
2358 if (r_symndx < symtab_hdr->sh_info)
2363 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2364 while (h->root.type == bfd_link_hash_indirect
2365 || h->root.type == bfd_link_hash_warning)
2366 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2369 /* Don't generate entries for weak symbols. */
2370 if (!h || (h && h->root.type != bfd_link_hash_undefweak))
2372 if (!discarded_section (s) && !((bfd_get_section_flags (ibfd, s) & SEC_ALLOC) == 0))
2374 switch (ELF32_R_TYPE (internal_relocs->r_info))
2387 struct weak_symbol_list *current, *new_entry;
2388 /* Is this symbol already in the list? */
2389 for (current = list_start; current; current = current->next)
2391 if (!strcmp (current->name, h->root.root.string))
2394 if (!current && !discarded_section (s) && (bfd_get_section_flags (ibfd, s) & SEC_ALLOC))
2396 /* Will this have an entry in the GOT. */
2397 if (ELF32_R_TYPE (internal_relocs->r_info) == R_LM32_16_GOT)
2399 /* Create a new entry. */
2400 new_entry = malloc (sizeof (struct weak_symbol_list));
2403 new_entry->name = h->root.root.string;
2404 new_entry->next = NULL;
2406 if (list_start == NULL)
2408 list_start = new_entry;
2409 list_end = new_entry;
2413 list_end->next = new_entry;
2414 list_end = new_entry;
2416 /* Increase count of undefined weak symbols in the got. */
2432 list_end = list_start->next;
2434 list_start = list_end;
2437 /* Size sections. */
2438 lm32fdpic_fixup32_section (info)->size = (r32_count + (htab->sgot->size / 4) - rgot_weak_count + 1) * 4;
2439 if (lm32fdpic_fixup32_section (info)->size == 0)
2440 lm32fdpic_fixup32_section (info)->flags |= SEC_EXCLUDE;
2443 lm32fdpic_fixup32_section (info)->contents =
2444 bfd_zalloc (dynobj, lm32fdpic_fixup32_section (info)->size);
2445 if (lm32fdpic_fixup32_section (info)->contents == NULL)
2453 /* Create dynamic sections when linking against a dynamic object. */
2456 lm32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2458 struct elf_lm32_link_hash_table *htab;
2459 flagword flags, pltflags;
2461 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2462 int ptralign = 2; /* 32bit */
2464 htab = lm32_elf_hash_table (info);
2468 /* Make sure we have a GOT - For the case where we have a dynamic object
2469 but none of the relocs in check_relocs */
2470 if (! create_got_section (abfd, info))
2472 if (IS_FDPIC (abfd) && (htab->sfixup32 == NULL))
2474 if (! create_rofixup_section (abfd, info))
2478 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2479 .rel[a].bss sections. */
2480 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2481 | SEC_LINKER_CREATED);
2484 pltflags |= SEC_CODE;
2485 if (bed->plt_not_loaded)
2486 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2487 if (bed->plt_readonly)
2488 pltflags |= SEC_READONLY;
2490 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
2493 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
2496 if (bed->want_plt_sym)
2498 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2500 struct bfd_link_hash_entry *bh = NULL;
2501 struct elf_link_hash_entry *h;
2503 if (! (_bfd_generic_link_add_one_symbol
2504 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
2505 (bfd_vma) 0, NULL, FALSE,
2506 get_elf_backend_data (abfd)->collect, &bh)))
2508 h = (struct elf_link_hash_entry *) bh;
2510 h->type = STT_OBJECT;
2511 htab->root.hplt = h;
2513 if (bfd_link_pic (info)
2514 && ! bfd_elf_link_record_dynamic_symbol (info, h))
2518 s = bfd_make_section_anyway_with_flags (abfd,
2519 bed->default_use_rela_p
2520 ? ".rela.plt" : ".rel.plt",
2521 flags | SEC_READONLY);
2524 || ! bfd_set_section_alignment (abfd, s, ptralign))
2527 if (htab->sgot == NULL
2528 && ! create_got_section (abfd, info))
2531 if (bed->want_dynbss)
2533 /* The .dynbss section is a place to put symbols which are defined
2534 by dynamic objects, are referenced by regular objects, and are
2535 not functions. We must allocate space for them in the process
2536 image and use a R_*_COPY reloc to tell the dynamic linker to
2537 initialize them at run time. The linker script puts the .dynbss
2538 section into the .bss section of the final image. */
2539 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2540 SEC_ALLOC | SEC_LINKER_CREATED);
2544 /* The .rel[a].bss section holds copy relocs. This section is not
2545 normally needed. We need to create it here, though, so that the
2546 linker will map it to an output section. We can't just create it
2547 only if we need it, because we will not know whether we need it
2548 until we have seen all the input files, and the first time the
2549 main linker code calls BFD after examining all the input files
2550 (size_dynamic_sections) the input sections have already been
2551 mapped to the output sections. If the section turns out not to
2552 be needed, we can discard it later. We will never need this
2553 section when generating a shared object, since they do not use
2555 if (! bfd_link_pic (info))
2557 s = bfd_make_section_anyway_with_flags (abfd,
2558 (bed->default_use_rela_p
2559 ? ".rela.bss" : ".rel.bss"),
2560 flags | SEC_READONLY);
2563 || ! bfd_set_section_alignment (abfd, s, ptralign))
2571 /* Copy the extra info we tack onto an elf_link_hash_entry. */
2574 lm32_elf_copy_indirect_symbol (struct bfd_link_info *info,
2575 struct elf_link_hash_entry *dir,
2576 struct elf_link_hash_entry *ind)
2578 struct elf_lm32_link_hash_entry * edir;
2579 struct elf_lm32_link_hash_entry * eind;
2581 edir = (struct elf_lm32_link_hash_entry *) dir;
2582 eind = (struct elf_lm32_link_hash_entry *) ind;
2584 if (eind->dyn_relocs != NULL)
2586 if (edir->dyn_relocs != NULL)
2588 struct elf_lm32_dyn_relocs **pp;
2589 struct elf_lm32_dyn_relocs *p;
2591 /* Add reloc counts against the indirect sym to the direct sym
2592 list. Merge any entries against the same section. */
2593 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2595 struct elf_lm32_dyn_relocs *q;
2597 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2598 if (q->sec == p->sec)
2600 q->pc_count += p->pc_count;
2601 q->count += p->count;
2608 *pp = edir->dyn_relocs;
2611 edir->dyn_relocs = eind->dyn_relocs;
2612 eind->dyn_relocs = NULL;
2615 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2619 lm32_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
2621 if (!bfd_link_relocatable (info))
2623 if (!bfd_elf_stack_segment_size (output_bfd, info,
2624 "__stacksize", DEFAULT_STACK_SIZE))
2627 asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
2629 sec->size = info->stacksize >= 0 ? info->stacksize : 0;
2636 lm32_elf_fdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2640 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2641 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2644 if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
2647 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
2648 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
2651 /* Copy the stack size. */
2652 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
2653 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
2655 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
2657 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
2658 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
2660 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
2662 /* Rewrite the phdrs, since we're only called after they were first written. */
2663 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
2664 ->s->sizeof_ehdr, SEEK_SET) != 0
2665 || get_elf_backend_data (obfd)->s->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
2666 elf_elfheader (obfd)->e_phnum) != 0)
2678 #define ELF_ARCH bfd_arch_lm32
2679 #define ELF_TARGET_ID LM32_ELF_DATA
2680 #define ELF_MACHINE_CODE EM_LATTICEMICO32
2681 #define ELF_MAXPAGESIZE 0x1000
2683 #define TARGET_BIG_SYM lm32_elf32_vec
2684 #define TARGET_BIG_NAME "elf32-lm32"
2686 #define bfd_elf32_bfd_reloc_type_lookup lm32_reloc_type_lookup
2687 #define bfd_elf32_bfd_reloc_name_lookup lm32_reloc_name_lookup
2688 #define elf_info_to_howto lm32_info_to_howto_rela
2689 #define elf_info_to_howto_rel 0
2690 #define elf_backend_rela_normal 1
2691 #define elf_backend_object_p lm32_elf_object_p
2692 #define elf_backend_final_write_processing lm32_elf_final_write_processing
2693 #define elf_backend_stack_align 8
2694 #define elf_backend_can_gc_sections 1
2695 #define elf_backend_can_refcount 1
2696 #define elf_backend_gc_mark_hook lm32_elf_gc_mark_hook
2697 #define elf_backend_gc_sweep_hook lm32_elf_gc_sweep_hook
2698 #define elf_backend_plt_readonly 1
2699 #define elf_backend_want_got_plt 1
2700 #define elf_backend_want_plt_sym 0
2701 #define elf_backend_got_header_size 12
2702 #define bfd_elf32_bfd_link_hash_table_create lm32_elf_link_hash_table_create
2703 #define elf_backend_check_relocs lm32_elf_check_relocs
2704 #define elf_backend_reloc_type_class lm32_elf_reloc_type_class
2705 #define elf_backend_copy_indirect_symbol lm32_elf_copy_indirect_symbol
2706 #define elf_backend_size_dynamic_sections lm32_elf_size_dynamic_sections
2707 #define elf_backend_omit_section_dynsym ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
2708 #define elf_backend_create_dynamic_sections lm32_elf_create_dynamic_sections
2709 #define elf_backend_finish_dynamic_sections lm32_elf_finish_dynamic_sections
2710 #define elf_backend_adjust_dynamic_symbol lm32_elf_adjust_dynamic_symbol
2711 #define elf_backend_finish_dynamic_symbol lm32_elf_finish_dynamic_symbol
2712 #define elf_backend_relocate_section lm32_elf_relocate_section
2714 #include "elf32-target.h"
2716 #undef ELF_MAXPAGESIZE
2717 #define ELF_MAXPAGESIZE 0x4000
2720 #undef TARGET_BIG_SYM
2721 #define TARGET_BIG_SYM lm32_elf32_fdpic_vec
2722 #undef TARGET_BIG_NAME
2723 #define TARGET_BIG_NAME "elf32-lm32fdpic"
2725 #define elf32_bed elf32_lm32fdpic_bed
2727 #undef elf_backend_always_size_sections
2728 #define elf_backend_always_size_sections lm32_elf_always_size_sections
2729 #undef bfd_elf32_bfd_copy_private_bfd_data
2730 #define bfd_elf32_bfd_copy_private_bfd_data lm32_elf_fdpic_copy_private_bfd_data
2732 #include "elf32-target.h"