1 /* Lattice Mico32-specific support for 32-bit ELF
2 Copyright (C) 2008-2019 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 /* lm32 ELF linker hash entry. */
55 struct elf_lm32_link_hash_entry
57 struct elf_link_hash_entry root;
59 /* Track dynamic relocs copied for this symbol. */
60 struct elf_dyn_relocs *dyn_relocs;
63 /* lm32 ELF linker hash table. */
65 struct elf_lm32_link_hash_table
67 struct elf_link_hash_table root;
69 /* Short-cuts to get to dynamic linker sections. */
77 /* Get the lm32 ELF linker hash table from a link_info structure. */
79 #define lm32_elf_hash_table(p) \
80 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
81 == LM32_ELF_DATA ? ((struct elf_lm32_link_hash_table *) ((p)->hash)) : NULL)
83 #define lm32fdpic_got_section(info) \
84 (lm32_elf_hash_table (info)->root.sgot)
85 #define lm32fdpic_gotrel_section(info) \
86 (lm32_elf_hash_table (info)->root.srelgot)
87 #define lm32fdpic_fixup32_section(info) \
88 (lm32_elf_hash_table (info)->sfixup32)
90 struct weak_symbol_list
93 struct weak_symbol_list *next;
96 /* Create an entry in an lm32 ELF linker hash table. */
98 static struct bfd_hash_entry *
99 lm32_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
100 struct bfd_hash_table *table,
103 struct elf_lm32_link_hash_entry *ret =
104 (struct elf_lm32_link_hash_entry *) entry;
106 /* Allocate the structure if it has not already been allocated by a
109 ret = bfd_hash_allocate (table,
110 sizeof (struct elf_lm32_link_hash_entry));
114 /* Call the allocation method of the superclass. */
115 ret = ((struct elf_lm32_link_hash_entry *)
116 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
120 struct elf_lm32_link_hash_entry *eh;
122 eh = (struct elf_lm32_link_hash_entry *) ret;
123 eh->dyn_relocs = NULL;
126 return (struct bfd_hash_entry *) ret;
129 /* Create an lm32 ELF linker hash table. */
131 static struct bfd_link_hash_table *
132 lm32_elf_link_hash_table_create (bfd *abfd)
134 struct elf_lm32_link_hash_table *ret;
135 bfd_size_type amt = sizeof (struct elf_lm32_link_hash_table);
137 ret = bfd_zmalloc (amt);
141 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
142 lm32_elf_link_hash_newfunc,
143 sizeof (struct elf_lm32_link_hash_entry),
150 return &ret->root.root;
153 /* Add a fixup to the ROFIXUP section. */
156 _lm32fdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma relocation)
158 bfd_vma fixup_offset;
160 if (rofixup->flags & SEC_EXCLUDE)
163 fixup_offset = rofixup->reloc_count * 4;
164 if (rofixup->contents)
166 BFD_ASSERT (fixup_offset < rofixup->size);
167 if (fixup_offset < rofixup->size)
168 bfd_put_32 (output_bfd, relocation, rofixup->contents + fixup_offset);
170 rofixup->reloc_count++;
175 /* Create .rofixup sections in DYNOBJ, and set up
176 shortcuts to them in our hash table. */
179 create_rofixup_section (bfd *dynobj, struct bfd_link_info *info)
181 struct elf_lm32_link_hash_table *htab;
182 htab = lm32_elf_hash_table (info);
187 /* Fixup section for R_LM32_32 relocs. */
188 lm32fdpic_fixup32_section (info)
189 = bfd_make_section_anyway_with_flags (dynobj,
197 if (lm32fdpic_fixup32_section (info) == NULL
198 || ! bfd_set_section_alignment (dynobj,
199 lm32fdpic_fixup32_section (info), 2))
205 static reloc_howto_type lm32_elf_howto_table [] =
207 /* This reloc does nothing. */
208 HOWTO (R_LM32_NONE, /* type */
210 3, /* size (0 = byte, 1 = short, 2 = long) */
212 FALSE, /* pc_relative */
214 complain_overflow_dont, /* complain_on_overflow */
215 bfd_elf_generic_reloc, /* special_function */
216 "R_LM32_NONE", /* name */
217 FALSE, /* partial_inplace */
220 FALSE), /* pcrel_offset */
222 /* An 8 bit absolute relocation. */
223 HOWTO (R_LM32_8, /* type */
225 0, /* size (0 = byte, 1 = short, 2 = long) */
227 FALSE, /* pc_relative */
229 complain_overflow_bitfield,/* complain_on_overflow */
230 bfd_elf_generic_reloc, /* special_function */
231 "R_LM32_8", /* name */
232 FALSE, /* partial_inplace */
235 FALSE), /* pcrel_offset */
237 /* A 16 bit absolute relocation. */
238 HOWTO (R_LM32_16, /* type */
240 1, /* size (0 = byte, 1 = short, 2 = long) */
242 FALSE, /* pc_relative */
244 complain_overflow_bitfield,/* complain_on_overflow */
245 bfd_elf_generic_reloc, /* special_function */
246 "R_LM32_16", /* name */
247 FALSE, /* partial_inplace */
249 0xffff, /* dst_mask */
250 FALSE), /* pcrel_offset */
252 /* A 32 bit absolute relocation. */
253 HOWTO (R_LM32_32, /* type */
255 2, /* size (0 = byte, 1 = short, 2 = long) */
257 FALSE, /* pc_relative */
259 complain_overflow_bitfield,/* complain_on_overflow */
260 bfd_elf_generic_reloc, /* special_function */
261 "R_LM32_32", /* name */
262 FALSE, /* partial_inplace */
264 0xffffffff, /* dst_mask */
265 FALSE), /* pcrel_offset */
267 HOWTO (R_LM32_HI16, /* type */
269 2, /* size (0 = byte, 1 = short, 2 = long) */
271 FALSE, /* pc_relative */
273 complain_overflow_bitfield,/* complain_on_overflow */
274 bfd_elf_generic_reloc, /* special_function */
275 "R_LM32_HI16", /* name */
276 FALSE, /* partial_inplace */
278 0xffff, /* dst_mask */
279 FALSE), /* pcrel_offset */
281 HOWTO (R_LM32_LO16, /* type */
283 2, /* size (0 = byte, 1 = short, 2 = long) */
285 FALSE, /* pc_relative */
287 complain_overflow_dont, /* complain_on_overflow */
288 bfd_elf_generic_reloc, /* special_function */
289 "R_LM32_LO16", /* name */
290 FALSE, /* partial_inplace */
292 0xffff, /* dst_mask */
293 FALSE), /* pcrel_offset */
295 HOWTO (R_LM32_GPREL16, /* type */
297 2, /* size (0 = byte, 1 = short, 2 = long) */
299 FALSE, /* pc_relative */
301 complain_overflow_dont, /* complain_on_overflow */
302 lm32_elf_gprel_reloc, /* special_function */
303 "R_LM32_GPREL16", /* name */
304 FALSE, /* partial_inplace */
306 0xffff, /* dst_mask */
307 FALSE), /* pcrel_offset */
309 HOWTO (R_LM32_CALL, /* type */
311 2, /* size (0 = byte, 1 = short, 2 = long) */
313 TRUE, /* pc_relative */
315 complain_overflow_signed, /* complain_on_overflow */
316 bfd_elf_generic_reloc, /* special_function */
317 "R_LM32_CALL", /* name */
318 FALSE, /* partial_inplace */
320 0x3ffffff, /* dst_mask */
321 TRUE), /* pcrel_offset */
323 HOWTO (R_LM32_BRANCH, /* type */
325 2, /* size (0 = byte, 1 = short, 2 = long) */
327 TRUE, /* pc_relative */
329 complain_overflow_signed, /* complain_on_overflow */
330 bfd_elf_generic_reloc, /* special_function */
331 "R_LM32_BRANCH", /* name */
332 FALSE, /* partial_inplace */
334 0xffff, /* dst_mask */
335 TRUE), /* pcrel_offset */
337 /* GNU extension to record C++ vtable hierarchy. */
338 HOWTO (R_LM32_GNU_VTINHERIT, /* type */
340 2, /* size (0 = byte, 1 = short, 2 = long) */
342 FALSE, /* pc_relative */
344 complain_overflow_dont, /* complain_on_overflow */
345 NULL, /* special_function */
346 "R_LM32_GNU_VTINHERIT", /* name */
347 FALSE, /* partial_inplace */
350 FALSE), /* pcrel_offset */
352 /* GNU extension to record C++ vtable member usage. */
353 HOWTO (R_LM32_GNU_VTENTRY, /* type */
355 2, /* size (0 = byte, 1 = short, 2 = long) */
357 FALSE, /* pc_relative */
359 complain_overflow_dont, /* complain_on_overflow */
360 _bfd_elf_rel_vtable_reloc_fn,/* special_function */
361 "R_LM32_GNU_VTENTRY", /* name */
362 FALSE, /* partial_inplace */
365 FALSE), /* pcrel_offset */
367 HOWTO (R_LM32_16_GOT, /* type */
369 2, /* size (0 = byte, 1 = short, 2 = long) */
371 FALSE, /* pc_relative */
373 complain_overflow_signed, /* complain_on_overflow */
374 bfd_elf_generic_reloc, /* special_function */
375 "R_LM32_16_GOT", /* name */
376 FALSE, /* partial_inplace */
378 0xffff, /* dst_mask */
379 FALSE), /* pcrel_offset */
381 HOWTO (R_LM32_GOTOFF_HI16, /* type */
383 2, /* size (0 = byte, 1 = short, 2 = long) */
385 FALSE, /* pc_relative */
387 complain_overflow_dont, /* complain_on_overflow */
388 bfd_elf_generic_reloc, /* special_function */
389 "R_LM32_GOTOFF_HI16", /* name */
390 FALSE, /* partial_inplace */
391 0xffff, /* src_mask */
392 0xffff, /* dst_mask */
393 FALSE), /* pcrel_offset */
395 HOWTO (R_LM32_GOTOFF_LO16, /* type */
397 2, /* size (0 = byte, 1 = short, 2 = long) */
399 FALSE, /* pc_relative */
401 complain_overflow_dont, /* complain_on_overflow */
402 bfd_elf_generic_reloc, /* special_function */
403 "R_LM32_GOTOFF_LO16", /* name */
404 FALSE, /* partial_inplace */
405 0xffff, /* src_mask */
406 0xffff, /* dst_mask */
407 FALSE), /* pcrel_offset */
409 HOWTO (R_LM32_COPY, /* type */
411 2, /* size (0 = byte, 1 = short, 2 = long) */
413 FALSE, /* pc_relative */
415 complain_overflow_bitfield, /* complain_on_overflow */
416 bfd_elf_generic_reloc, /* special_function */
417 "R_LM32_COPY", /* name */
418 FALSE, /* partial_inplace */
419 0xffffffff, /* src_mask */
420 0xffffffff, /* dst_mask */
421 FALSE), /* pcrel_offset */
423 HOWTO (R_LM32_GLOB_DAT, /* type */
425 2, /* size (0 = byte, 1 = short, 2 = long) */
427 FALSE, /* pc_relative */
429 complain_overflow_bitfield, /* complain_on_overflow */
430 bfd_elf_generic_reloc, /* special_function */
431 "R_LM32_GLOB_DAT", /* name */
432 FALSE, /* partial_inplace */
433 0xffffffff, /* src_mask */
434 0xffffffff, /* dst_mask */
435 FALSE), /* pcrel_offset */
437 HOWTO (R_LM32_JMP_SLOT, /* type */
439 2, /* size (0 = byte, 1 = short, 2 = long) */
441 FALSE, /* pc_relative */
443 complain_overflow_bitfield, /* complain_on_overflow */
444 bfd_elf_generic_reloc, /* special_function */
445 "R_LM32_JMP_SLOT", /* name */
446 FALSE, /* partial_inplace */
447 0xffffffff, /* src_mask */
448 0xffffffff, /* dst_mask */
449 FALSE), /* pcrel_offset */
451 HOWTO (R_LM32_RELATIVE, /* type */
453 2, /* size (0 = byte, 1 = short, 2 = long) */
455 FALSE, /* pc_relative */
457 complain_overflow_bitfield, /* complain_on_overflow */
458 bfd_elf_generic_reloc, /* special_function */
459 "R_LM32_RELATIVE", /* name */
460 FALSE, /* partial_inplace */
461 0xffffffff, /* src_mask */
462 0xffffffff, /* dst_mask */
463 FALSE), /* pcrel_offset */
467 /* Map BFD reloc types to lm32 ELF reloc types. */
469 struct lm32_reloc_map
471 bfd_reloc_code_real_type bfd_reloc_val;
472 unsigned char elf_reloc_val;
475 static const struct lm32_reloc_map lm32_reloc_map[] =
477 { BFD_RELOC_NONE, R_LM32_NONE },
478 { BFD_RELOC_8, R_LM32_8 },
479 { BFD_RELOC_16, R_LM32_16 },
480 { BFD_RELOC_32, R_LM32_32 },
481 { BFD_RELOC_HI16, R_LM32_HI16 },
482 { BFD_RELOC_LO16, R_LM32_LO16 },
483 { BFD_RELOC_GPREL16, R_LM32_GPREL16 },
484 { BFD_RELOC_LM32_CALL, R_LM32_CALL },
485 { BFD_RELOC_LM32_BRANCH, R_LM32_BRANCH },
486 { BFD_RELOC_VTABLE_INHERIT, R_LM32_GNU_VTINHERIT },
487 { BFD_RELOC_VTABLE_ENTRY, R_LM32_GNU_VTENTRY },
488 { BFD_RELOC_LM32_16_GOT, R_LM32_16_GOT },
489 { BFD_RELOC_LM32_GOTOFF_HI16, R_LM32_GOTOFF_HI16 },
490 { BFD_RELOC_LM32_GOTOFF_LO16, R_LM32_GOTOFF_LO16 },
491 { BFD_RELOC_LM32_COPY, R_LM32_COPY },
492 { BFD_RELOC_LM32_GLOB_DAT, R_LM32_GLOB_DAT },
493 { BFD_RELOC_LM32_JMP_SLOT, R_LM32_JMP_SLOT },
494 { BFD_RELOC_LM32_RELATIVE, R_LM32_RELATIVE },
497 static reloc_howto_type *
498 lm32_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
499 bfd_reloc_code_real_type code)
503 for (i = 0; i < sizeof (lm32_reloc_map) / sizeof (lm32_reloc_map[0]); i++)
504 if (lm32_reloc_map[i].bfd_reloc_val == code)
505 return &lm32_elf_howto_table[lm32_reloc_map[i].elf_reloc_val];
509 static reloc_howto_type *
510 lm32_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
516 i < sizeof (lm32_elf_howto_table) / sizeof (lm32_elf_howto_table[0]);
518 if (lm32_elf_howto_table[i].name != NULL
519 && strcasecmp (lm32_elf_howto_table[i].name, r_name) == 0)
520 return &lm32_elf_howto_table[i];
526 /* Set the howto pointer for an Lattice Mico32 ELF reloc. */
529 lm32_info_to_howto_rela (bfd *abfd,
531 Elf_Internal_Rela *dst)
535 r_type = ELF32_R_TYPE (dst->r_info);
536 if (r_type >= (unsigned int) R_LM32_max)
538 /* xgettext:c-format */
539 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
541 bfd_set_error (bfd_error_bad_value);
544 cache_ptr->howto = &lm32_elf_howto_table[r_type];
548 /* Set the right machine number for an Lattice Mico32 ELF file. */
551 lm32_elf_object_p (bfd *abfd)
553 return bfd_default_set_arch_mach (abfd, bfd_arch_lm32, bfd_mach_lm32);
556 /* Set machine type flags just before file is written out. */
559 lm32_elf_final_write_processing (bfd *abfd)
561 elf_elfheader (abfd)->e_machine = EM_LATTICEMICO32;
562 elf_elfheader (abfd)->e_flags &=~ EF_LM32_MACH;
563 switch (bfd_get_mach (abfd))
566 elf_elfheader (abfd)->e_flags |= E_LM32_MACH;
571 return _bfd_elf_final_write_processing (abfd);
574 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
575 dangerous relocation. */
578 lm32_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
584 /* If we've already figured out what GP will be, just return it. */
585 *pgp = _bfd_get_gp_value (output_bfd);
589 count = bfd_get_symcount (output_bfd);
590 sym = bfd_get_outsymbols (output_bfd);
592 /* The linker script will have created a symbol named `_gp' with the
593 appropriate value. */
598 for (i = 0; i < count; i++, sym++)
602 name = bfd_asymbol_name (*sym);
603 if (*name == '_' && strcmp (name, "_gp") == 0)
605 *pgp = bfd_asymbol_value (*sym);
606 _bfd_set_gp_value (output_bfd, *pgp);
614 /* Only get the error once. */
616 _bfd_set_gp_value (output_bfd, *pgp);
623 /* We have to figure out the gp value, so that we can adjust the
624 symbol value correctly. We look up the symbol _gp in the output
625 BFD. If we can't find it, we're stuck. We cache it in the ELF
626 target data. We don't need to adjust the symbol value for an
627 external symbol if we are producing relocatable output. */
629 static bfd_reloc_status_type
630 lm32_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
631 char **error_message, bfd_vma *pgp)
633 if (bfd_is_und_section (symbol->section) && !relocatable)
636 return bfd_reloc_undefined;
639 *pgp = _bfd_get_gp_value (output_bfd);
640 if (*pgp == 0 && (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0))
644 /* Make up a value. */
645 *pgp = symbol->section->output_section->vma + 0x4000;
646 _bfd_set_gp_value (output_bfd, *pgp);
648 else if (!lm32_elf_assign_gp (output_bfd, pgp))
652 _("global pointer relative relocation when _gp not defined");
653 return bfd_reloc_dangerous;
660 static bfd_reloc_status_type
661 lm32_elf_do_gprel_relocate (bfd *abfd,
662 reloc_howto_type *howto,
663 asection *input_section ATTRIBUTE_UNUSED,
666 bfd_vma symbol_value,
669 return _bfd_final_link_relocate (howto, abfd, input_section,
670 data, offset, symbol_value, addend);
673 static bfd_reloc_status_type
674 lm32_elf_gprel_reloc (bfd *abfd,
675 arelent *reloc_entry,
678 asection *input_section,
684 bfd_reloc_status_type r;
686 if (output_bfd != (bfd *) NULL
687 && (symbol->flags & BSF_SECTION_SYM) == 0
688 && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0))
690 reloc_entry->address += input_section->output_offset;
694 if (output_bfd != NULL)
697 relocation = symbol->value
698 + symbol->section->output_section->vma + symbol->section->output_offset;
701 lm32_elf_final_gp (abfd, symbol, FALSE, msg, &gp)) == bfd_reloc_ok)
703 relocation = relocation + reloc_entry->addend - gp;
704 reloc_entry->addend = 0;
705 if ((signed) relocation < -32768 || (signed) relocation > 32767)
707 *msg = _("global pointer relative address out of range");
708 r = bfd_reloc_outofrange;
712 r = lm32_elf_do_gprel_relocate (abfd, reloc_entry->howto,
714 data, reloc_entry->address,
715 relocation, reloc_entry->addend);
722 /* Find the segment number in which OSEC, and output section, is
726 _lm32fdpic_osec_to_segment (bfd *output_bfd, asection *osec)
728 struct elf_segment_map *m;
729 Elf_Internal_Phdr *p;
731 /* Find the segment that contains the output_section. */
732 for (m = elf_seg_map (output_bfd), p = elf_tdata (output_bfd)->phdr;
738 for (i = m->count - 1; i >= 0; i--)
739 if (m->sections[i] == osec)
746 return p - elf_tdata (output_bfd)->phdr;
749 /* Determine if an output section is read-only. */
751 inline static bfd_boolean
752 _lm32fdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
754 unsigned seg = _lm32fdpic_osec_to_segment (output_bfd, osec);
756 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
759 /* Relocate a section */
762 lm32_elf_relocate_section (bfd *output_bfd,
763 struct bfd_link_info *info,
765 asection *input_section,
767 Elf_Internal_Rela *relocs,
768 Elf_Internal_Sym *local_syms,
769 asection **local_sections)
771 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
772 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
773 Elf_Internal_Rela *rel, *relend;
774 struct elf_lm32_link_hash_table *htab = lm32_elf_hash_table (info);
775 bfd_vma *local_got_offsets;
781 local_got_offsets = elf_local_got_offsets (input_bfd);
783 sgot = htab->root.sgot;
785 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
786 sym_hashes = elf_sym_hashes (input_bfd);
789 relend = relocs + input_section->reloc_count;
790 for (; rel < relend; rel++)
792 reloc_howto_type *howto;
794 unsigned long r_symndx;
795 Elf_Internal_Sym *sym;
797 struct elf_link_hash_entry *h;
800 bfd_reloc_status_type r;
801 const char *name = NULL;
803 r_symndx = ELF32_R_SYM (rel->r_info);
804 r_type = ELF32_R_TYPE (rel->r_info);
806 if (r_type == R_LM32_GNU_VTENTRY
807 || r_type == R_LM32_GNU_VTINHERIT )
814 howto = lm32_elf_howto_table + r_type;
816 if (r_symndx < symtab_hdr->sh_info)
818 /* It's a local symbol. */
819 sym = local_syms + r_symndx;
820 sec = local_sections[r_symndx];
821 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
822 name = bfd_elf_string_from_elf_section
823 (input_bfd, symtab_hdr->sh_link, sym->st_name);
824 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
828 /* It's a global symbol. */
829 bfd_boolean unresolved_reloc;
830 bfd_boolean warned, ignored;
832 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
833 r_symndx, symtab_hdr, sym_hashes,
835 unresolved_reloc, warned, ignored);
836 name = h->root.root.string;
839 if (sec != NULL && discarded_section (sec))
840 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
841 rel, 1, relend, howto, 0, contents);
843 if (bfd_link_relocatable (info))
845 /* This is a relocatable link. We don't have to change
846 anything, unless the reloc is against a section symbol,
847 in which case we have to adjust according to where the
848 section symbol winds up in the output section. */
849 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
852 /* If partial_inplace, we need to store any additional addend
853 back in the section. */
854 if (! howto->partial_inplace)
857 /* Shouldn't reach here. */
866 if (!lm32_elf_assign_gp (output_bfd, &gp))
867 r = bfd_reloc_dangerous;
870 relocation = relocation + rel->r_addend - gp;
872 if ((signed)relocation < -32768 || (signed)relocation > 32767)
873 r = bfd_reloc_outofrange;
876 r = _bfd_final_link_relocate (howto, input_bfd,
877 input_section, contents,
878 rel->r_offset, relocation,
884 /* Relocation is to the entry for this symbol in the global
886 BFD_ASSERT (sgot != NULL);
893 BFD_ASSERT (off != (bfd_vma) -1);
895 dyn = htab->root.dynamic_sections_created;
896 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
899 || (bfd_link_pic (info)
905 /* This is actually a static link, or it is a
906 -Bsymbolic link and the symbol is defined
907 locally, or the symbol was forced to be local
908 because of a version file. We must initialize
909 this entry in the global offset table. Since the
910 offset must always be a multiple of 4, we use the
911 least significant bit to record whether we have
912 initialized it already.
914 When doing a dynamic link, we create a .rela.got
915 relocation entry to initialize the value. This
916 is done in the finish_dynamic_symbol routine. */
921 /* Write entry in GOT */
922 bfd_put_32 (output_bfd, relocation,
923 sgot->contents + off);
924 /* Create entry in .rofixup pointing to GOT entry. */
925 if (IS_FDPIC (output_bfd) && h->root.type != bfd_link_hash_undefweak)
927 _lm32fdpic_add_rofixup (output_bfd,
928 lm32fdpic_fixup32_section
930 sgot->output_section->vma
931 + sgot->output_offset
934 /* Mark GOT entry as having been written. */
939 relocation = sgot->output_offset + off;
946 BFD_ASSERT (local_got_offsets != NULL
947 && local_got_offsets[r_symndx] != (bfd_vma) -1);
949 /* Get offset into GOT table. */
950 off = local_got_offsets[r_symndx];
952 /* The offset must always be a multiple of 4. We use
953 the least significant bit to record whether we have
954 already processed this entry. */
959 /* Write entry in GOT. */
960 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
961 /* Create entry in .rofixup pointing to GOT entry. */
962 if (IS_FDPIC (output_bfd))
964 _lm32fdpic_add_rofixup (output_bfd,
965 lm32fdpic_fixup32_section
967 sgot->output_section->vma
968 + sgot->output_offset
972 if (bfd_link_pic (info))
975 Elf_Internal_Rela outrel;
977 /* We need to generate a R_LM32_RELATIVE reloc
978 for the dynamic linker. */
979 srelgot = htab->root.srelgot;
980 BFD_ASSERT (srelgot != NULL);
982 outrel.r_offset = (sgot->output_section->vma
983 + sgot->output_offset
985 outrel.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
986 outrel.r_addend = relocation;
987 loc = srelgot->contents;
988 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
989 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
990 ++srelgot->reloc_count;
993 local_got_offsets[r_symndx] |= 1;
997 relocation = sgot->output_offset + off;
1000 /* Addend should be zero. */
1001 if (rel->r_addend != 0)
1003 (_("internal error: addend should be zero for %s"),
1006 r = _bfd_final_link_relocate (howto,
1015 case R_LM32_GOTOFF_LO16:
1016 case R_LM32_GOTOFF_HI16:
1017 /* Relocation is offset from GOT. */
1018 BFD_ASSERT (sgot != NULL);
1019 relocation -= sgot->output_section->vma;
1020 /* Account for sign-extension. */
1021 if ((r_type == R_LM32_GOTOFF_HI16)
1022 && ((relocation + rel->r_addend) & 0x8000))
1023 rel->r_addend += 0x10000;
1024 r = _bfd_final_link_relocate (howto,
1034 if (IS_FDPIC (output_bfd))
1036 if ((!h) || (h && h->root.type != bfd_link_hash_undefweak))
1038 /* Only create .rofixup entries for relocs in loadable sections. */
1039 if ((bfd_get_section_flags (output_bfd, input_section->output_section)
1040 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
1043 /* Check address to be modified is writable. */
1044 if (_lm32fdpic_osec_readonly_p (output_bfd,
1048 info->callbacks->warning
1050 _("cannot emit dynamic relocations in read-only section"),
1051 name, input_bfd, input_section, rel->r_offset);
1054 /* Create entry in .rofixup section. */
1055 _lm32fdpic_add_rofixup (output_bfd,
1056 lm32fdpic_fixup32_section (info),
1057 input_section->output_section->vma
1058 + input_section->output_offset
1066 r = _bfd_final_link_relocate (howto,
1077 if (r != bfd_reloc_ok)
1079 const char *msg = NULL;
1082 if (! lm32_info_to_howto_rela (input_bfd, &bfd_reloc, rel))
1084 howto = bfd_reloc.howto;
1087 name = h->root.root.string;
1090 name = (bfd_elf_string_from_elf_section
1091 (input_bfd, symtab_hdr->sh_link, sym->st_name));
1092 if (name == NULL || *name == '\0')
1093 name = bfd_section_name (input_bfd, sec);
1098 case bfd_reloc_overflow:
1100 && (h->root.type == bfd_link_hash_undefweak))
1102 (*info->callbacks->reloc_overflow)
1103 (info, (h ? &h->root : NULL), name, howto->name,
1104 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1107 case bfd_reloc_undefined:
1108 (*info->callbacks->undefined_symbol)
1109 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1112 case bfd_reloc_outofrange:
1113 msg = _("internal error: out of range error");
1116 case bfd_reloc_notsupported:
1117 msg = _("internal error: unsupported relocation error");
1120 case bfd_reloc_dangerous:
1121 msg = _("internal error: dangerous error");
1125 msg = _("internal error: unknown error");
1129 (*info->callbacks->warning) (info, msg, name, input_bfd,
1130 input_section, rel->r_offset);
1140 lm32_elf_gc_mark_hook (asection *sec,
1141 struct bfd_link_info *info,
1142 Elf_Internal_Rela *rel,
1143 struct elf_link_hash_entry *h,
1144 Elf_Internal_Sym *sym)
1147 switch (ELF32_R_TYPE (rel->r_info))
1149 case R_LM32_GNU_VTINHERIT:
1150 case R_LM32_GNU_VTENTRY:
1154 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1157 /* Look through the relocs for a section during the first phase. */
1160 lm32_elf_check_relocs (bfd *abfd,
1161 struct bfd_link_info *info,
1163 const Elf_Internal_Rela *relocs)
1165 Elf_Internal_Shdr *symtab_hdr;
1166 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
1167 const Elf_Internal_Rela *rel;
1168 const Elf_Internal_Rela *rel_end;
1169 struct elf_lm32_link_hash_table *htab;
1172 if (bfd_link_relocatable (info))
1175 /* Don't do anything special with non-loaded, non-alloced sections.
1176 In particular, any relocs in such sections should not affect GOT
1177 and PLT reference counting (ie. we don't allow them to create GOT
1178 or PLT entries), there's no possibility or desire to optimize TLS
1179 relocs, and there's not much point in propagating relocs to shared
1180 libs that the dynamic linker won't relocate. */
1181 if ((sec->flags & SEC_ALLOC) == 0)
1184 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1185 sym_hashes = elf_sym_hashes (abfd);
1186 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
1187 if (!elf_bad_symtab (abfd))
1188 sym_hashes_end -= symtab_hdr->sh_info;
1190 htab = lm32_elf_hash_table (info);
1194 dynobj = htab->root.dynobj;
1196 rel_end = relocs + sec->reloc_count;
1197 for (rel = relocs; rel < rel_end; rel++)
1200 struct elf_link_hash_entry *h;
1201 unsigned long r_symndx;
1203 r_symndx = ELF32_R_SYM (rel->r_info);
1204 r_type = ELF32_R_TYPE (rel->r_info);
1205 if (r_symndx < symtab_hdr->sh_info)
1209 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1210 while (h->root.type == bfd_link_hash_indirect
1211 || h->root.type == bfd_link_hash_warning)
1212 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1215 /* Some relocs require a global offset table. */
1216 if (htab->root.sgot == NULL)
1221 case R_LM32_GOTOFF_HI16:
1222 case R_LM32_GOTOFF_LO16:
1224 htab->root.dynobj = dynobj = abfd;
1225 if (!_bfd_elf_create_got_section (dynobj, info))
1231 /* Some relocs require a rofixup table. */
1232 if (IS_FDPIC (abfd))
1237 /* FDPIC requires a GOT if there is a .rofixup section
1238 (Normal ELF doesn't). */
1240 htab->root.dynobj = dynobj = abfd;
1241 if (!_bfd_elf_create_got_section (dynobj, info))
1243 /* Create .rofixup section */
1244 if (htab->sfixup32 == NULL)
1246 if (! create_rofixup_section (dynobj, info))
1251 case R_LM32_GOTOFF_HI16:
1252 case R_LM32_GOTOFF_LO16:
1253 /* Create .rofixup section. */
1254 if (htab->sfixup32 == NULL)
1257 htab->root.dynobj = dynobj = abfd;
1258 if (! create_rofixup_section (dynobj, info))
1269 h->got.refcount += 1;
1272 bfd_signed_vma *local_got_refcounts;
1274 /* This is a global offset table entry for a local symbol. */
1275 local_got_refcounts = elf_local_got_refcounts (abfd);
1276 if (local_got_refcounts == NULL)
1280 size = symtab_hdr->sh_info;
1281 size *= sizeof (bfd_signed_vma);
1282 local_got_refcounts = bfd_zalloc (abfd, size);
1283 if (local_got_refcounts == NULL)
1285 elf_local_got_refcounts (abfd) = local_got_refcounts;
1287 local_got_refcounts[r_symndx] += 1;
1291 /* This relocation describes the C++ object vtable hierarchy.
1292 Reconstruct it for later use during GC. */
1293 case R_LM32_GNU_VTINHERIT:
1294 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1298 /* This relocation describes which C++ vtable entries are actually
1299 used. Record for later use during GC. */
1300 case R_LM32_GNU_VTENTRY:
1301 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1311 /* Finish up the dynamic sections. */
1314 lm32_elf_finish_dynamic_sections (bfd *output_bfd,
1315 struct bfd_link_info *info)
1317 struct elf_lm32_link_hash_table *htab;
1322 htab = lm32_elf_hash_table (info);
1326 dynobj = htab->root.dynobj;
1328 sgot = htab->root.sgotplt;
1329 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
1331 if (htab->root.dynamic_sections_created)
1334 Elf32_External_Dyn *dyncon, *dynconend;
1336 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1338 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1339 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1341 for (; dyncon < dynconend; dyncon++)
1343 Elf_Internal_Dyn dyn;
1346 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1354 s = htab->root.sgotplt;
1357 s = htab->root.srelplt;
1359 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1360 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1364 s = htab->root.srelplt;
1365 dyn.d_un.d_val = s->size;
1366 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1371 /* Fill in the first entry in the procedure linkage table. */
1372 splt = htab->root.splt;
1373 if (splt && splt->size > 0)
1375 if (bfd_link_pic (info))
1377 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
1378 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
1379 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
1380 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
1381 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
1386 /* addr = .got + 4 */
1387 addr = sgot->output_section->vma + sgot->output_offset + 4;
1388 bfd_put_32 (output_bfd,
1389 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1391 bfd_put_32 (output_bfd,
1392 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1393 splt->contents + 4);
1394 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1395 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1396 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1399 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
1404 /* Fill in the first three entries in the global offset table. */
1405 if (sgot && sgot->size > 0)
1408 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1410 bfd_put_32 (output_bfd,
1411 sdyn->output_section->vma + sdyn->output_offset,
1413 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1414 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1416 /* FIXME: This can be null if create_dynamic_sections wasn't called. */
1417 if (elf_section_data (sgot->output_section) != NULL)
1418 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1421 if (lm32fdpic_fixup32_section (info))
1423 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
1424 bfd_vma got_value = hgot->root.u.def.value
1425 + hgot->root.u.def.section->output_section->vma
1426 + hgot->root.u.def.section->output_offset;
1427 struct bfd_link_hash_entry *hend;
1429 /* Last entry is pointer to GOT. */
1430 _lm32fdpic_add_rofixup (output_bfd, lm32fdpic_fixup32_section (info), got_value);
1432 /* Check we wrote enough entries. */
1433 if (lm32fdpic_fixup32_section (info)->size
1434 != (lm32fdpic_fixup32_section (info)->reloc_count * 4))
1437 ("LINKER BUG: .rofixup section size mismatch: size/4 %" PRId64
1439 (int64_t) (lm32fdpic_fixup32_section (info)->size / 4),
1440 lm32fdpic_fixup32_section (info)->reloc_count);
1444 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
1445 FALSE, FALSE, TRUE);
1447 && (hend->type == bfd_link_hash_defined
1448 || hend->type == bfd_link_hash_defweak)
1449 && hend->u.def.section->output_section != NULL)
1452 lm32fdpic_fixup32_section (info)->output_section->vma
1453 + lm32fdpic_fixup32_section (info)->output_offset
1454 + lm32fdpic_fixup32_section (info)->size
1455 - hend->u.def.section->output_section->vma
1456 - hend->u.def.section->output_offset;
1457 BFD_ASSERT (hend->u.def.value == value);
1458 if (hend->u.def.value != value)
1461 ("LINKER BUG: .rofixup section hend->u.def.value != value: %"
1462 PRId64 " != %" PRId64,
1463 (int64_t) hend->u.def.value, (int64_t) value);
1472 /* Finish up dynamic symbol handling. We set the contents of various
1473 dynamic sections here. */
1476 lm32_elf_finish_dynamic_symbol (bfd *output_bfd,
1477 struct bfd_link_info *info,
1478 struct elf_link_hash_entry *h,
1479 Elf_Internal_Sym *sym)
1481 struct elf_lm32_link_hash_table *htab;
1484 htab = lm32_elf_hash_table (info);
1488 if (h->plt.offset != (bfd_vma) -1)
1496 Elf_Internal_Rela rela;
1498 /* This symbol has an entry in the procedure linkage table. Set
1500 BFD_ASSERT (h->dynindx != -1);
1502 splt = htab->root.splt;
1503 sgot = htab->root.sgotplt;
1504 srela = htab->root.srelplt;
1505 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1507 /* Get the index in the procedure linkage table which
1508 corresponds to this symbol. This is the index of this symbol
1509 in all the symbols for which we are making plt entries. The
1510 first entry in the procedure linkage table is reserved. */
1511 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1513 /* Get the offset into the .got table of the entry that
1514 corresponds to this function. Each .got entry is 4 bytes.
1515 The first three are reserved. */
1516 got_offset = (plt_index + 3) * 4;
1518 /* Fill in the entry in the procedure linkage table. */
1519 if (! bfd_link_pic (info))
1528 /* Fill in the entry in the global offset table. */
1529 bfd_put_32 (output_bfd,
1530 (splt->output_section->vma
1531 + splt->output_offset
1533 + 12), /* same offset */
1534 sgot->contents + got_offset);
1536 /* Fill in the entry in the .rela.plt section. */
1537 rela.r_offset = (sgot->output_section->vma
1538 + sgot->output_offset
1540 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_JMP_SLOT);
1542 loc = srela->contents;
1543 loc += plt_index * sizeof (Elf32_External_Rela);
1544 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1546 if (!h->def_regular)
1548 /* Mark the symbol as undefined, rather than as defined in
1549 the .plt section. Leave the value alone. */
1550 sym->st_shndx = SHN_UNDEF;
1555 if (h->got.offset != (bfd_vma) -1)
1559 Elf_Internal_Rela rela;
1561 /* This symbol has an entry in the global offset table. Set it
1563 sgot = htab->root.sgot;
1564 srela = htab->root.srelgot;
1565 BFD_ASSERT (sgot != NULL && srela != NULL);
1567 rela.r_offset = (sgot->output_section->vma
1568 + sgot->output_offset
1569 + (h->got.offset &~ 1));
1571 /* If this is a -Bsymbolic link, and the symbol is defined
1572 locally, we just want to emit a RELATIVE reloc. Likewise if
1573 the symbol was forced to be local because of a version file.
1574 The entry in the global offset table will already have been
1575 initialized in the relocate_section function. */
1576 if (bfd_link_pic (info)
1582 rela.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
1583 rela.r_addend = (h->root.u.def.value
1584 + h->root.u.def.section->output_section->vma
1585 + h->root.u.def.section->output_offset);
1589 BFD_ASSERT ((h->got.offset & 1) == 0);
1590 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1591 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_GLOB_DAT);
1595 loc = srela->contents;
1596 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1597 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1598 ++srela->reloc_count;
1604 Elf_Internal_Rela rela;
1606 /* This symbols needs a copy reloc. Set it up. */
1607 BFD_ASSERT (h->dynindx != -1
1608 && (h->root.type == bfd_link_hash_defined
1609 || h->root.type == bfd_link_hash_defweak));
1611 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
1612 BFD_ASSERT (s != NULL);
1614 rela.r_offset = (h->root.u.def.value
1615 + h->root.u.def.section->output_section->vma
1616 + h->root.u.def.section->output_offset);
1617 rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_COPY);
1620 loc += s->reloc_count * sizeof (Elf32_External_Rela);
1621 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1625 /* Mark some specially defined symbols as absolute. */
1626 if (h == htab->root.hdynamic || h == htab->root.hgot)
1627 sym->st_shndx = SHN_ABS;
1632 static enum elf_reloc_type_class
1633 lm32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1634 const asection *rel_sec ATTRIBUTE_UNUSED,
1635 const Elf_Internal_Rela *rela)
1637 switch ((int) ELF32_R_TYPE (rela->r_info))
1639 case R_LM32_RELATIVE: return reloc_class_relative;
1640 case R_LM32_JMP_SLOT: return reloc_class_plt;
1641 case R_LM32_COPY: return reloc_class_copy;
1642 default: return reloc_class_normal;
1646 /* Find dynamic relocs for H that apply to read-only sections. */
1649 readonly_dynrelocs (struct elf_link_hash_entry *h)
1651 struct elf_dyn_relocs *p;
1652 struct elf_lm32_link_hash_entry *eh = (struct elf_lm32_link_hash_entry *) h;
1654 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1656 asection *s = p->sec->output_section;
1658 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1664 /* Adjust a symbol defined by a dynamic object and referenced by a
1665 regular object. The current definition is in some section of the
1666 dynamic object, but we're not including those sections. We have to
1667 change the definition to something the rest of the link can
1671 lm32_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1672 struct elf_link_hash_entry *h)
1674 struct elf_lm32_link_hash_table *htab;
1678 dynobj = elf_hash_table (info)->dynobj;
1680 /* Make sure we know what is going on here. */
1681 BFD_ASSERT (dynobj != NULL
1686 && !h->def_regular)));
1688 /* If this is a function, put it in the procedure linkage table. We
1689 will fill in the contents of the procedure linkage table later,
1690 when we know the address of the .got section. */
1691 if (h->type == STT_FUNC
1694 if (! bfd_link_pic (info)
1697 && h->root.type != bfd_link_hash_undefweak
1698 && h->root.type != bfd_link_hash_undefined)
1700 /* This case can occur if we saw a PLT reloc in an input
1701 file, but the symbol was never referred to by a dynamic
1702 object. In such a case, we don't actually need to build
1703 a procedure linkage table, and we can just do a PCREL
1705 h->plt.offset = (bfd_vma) -1;
1712 h->plt.offset = (bfd_vma) -1;
1714 /* If this is a weak symbol, and there is a real definition, the
1715 processor independent code will have arranged for us to see the
1716 real definition first, and we can just use the same value. */
1717 if (h->is_weakalias)
1719 struct elf_link_hash_entry *def = weakdef (h);
1720 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1721 h->root.u.def.section = def->root.u.def.section;
1722 h->root.u.def.value = def->root.u.def.value;
1726 /* This is a reference to a symbol defined by a dynamic object which
1727 is not a function. */
1729 /* If we are creating a shared library, we must presume that the
1730 only references to the symbol are via the global offset table.
1731 For such cases we need not do anything here; the relocations will
1732 be handled correctly by relocate_section. */
1733 if (bfd_link_pic (info))
1736 /* If there are no references to this symbol that do not use the
1737 GOT, we don't need to generate a copy reloc. */
1738 if (!h->non_got_ref)
1741 /* If -z nocopyreloc was given, we won't generate them either. */
1742 if (0 && info->nocopyreloc)
1748 /* If we don't find any dynamic relocs in read-only sections, then
1749 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1750 if (0 && !readonly_dynrelocs (h))
1756 /* We must allocate the symbol in our .dynbss section, which will
1757 become part of the .bss section of the executable. There will be
1758 an entry for this symbol in the .dynsym section. The dynamic
1759 object will contain position independent code, so all references
1760 from the dynamic object to this symbol will go through the global
1761 offset table. The dynamic linker will use the .dynsym entry to
1762 determine the address it must put in the global offset table, so
1763 both the dynamic object and the regular object will refer to the
1764 same memory location for the variable. */
1766 htab = lm32_elf_hash_table (info);
1771 BFD_ASSERT (s != NULL);
1773 /* We must generate a R_LM32_COPY reloc to tell the dynamic linker
1774 to copy the initial value out of the dynamic object and into the
1775 runtime process image. We need to remember the offset into the
1776 .rela.bss section we are going to use. */
1777 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1781 srel = htab->srelbss;
1782 BFD_ASSERT (srel != NULL);
1783 srel->size += sizeof (Elf32_External_Rela);
1787 return _bfd_elf_adjust_dynamic_copy (info, h, s);
1790 /* Allocate space in .plt, .got and associated reloc sections for
1794 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1796 struct bfd_link_info *info;
1797 struct elf_lm32_link_hash_table *htab;
1798 struct elf_lm32_link_hash_entry *eh;
1799 struct elf_dyn_relocs *p;
1801 if (h->root.type == bfd_link_hash_indirect)
1804 info = (struct bfd_link_info *) inf;
1805 htab = lm32_elf_hash_table (info);
1809 eh = (struct elf_lm32_link_hash_entry *) h;
1811 if (htab->root.dynamic_sections_created
1812 && h->plt.refcount > 0)
1814 /* Make sure this symbol is output as a dynamic symbol.
1815 Undefined weak syms won't yet be marked as dynamic. */
1816 if (h->dynindx == -1
1817 && !h->forced_local)
1819 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1823 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
1825 asection *s = htab->root.splt;
1827 /* If this is the first .plt entry, make room for the special
1830 s->size += PLT_ENTRY_SIZE;
1832 h->plt.offset = s->size;
1834 /* If this symbol is not defined in a regular file, and we are
1835 not generating a shared library, then set the symbol to this
1836 location in the .plt. This is required to make function
1837 pointers compare as equal between the normal executable and
1838 the shared library. */
1839 if (! bfd_link_pic (info)
1842 h->root.u.def.section = s;
1843 h->root.u.def.value = h->plt.offset;
1846 /* Make room for this entry. */
1847 s->size += PLT_ENTRY_SIZE;
1849 /* We also need to make an entry in the .got.plt section, which
1850 will be placed in the .got section by the linker script. */
1851 htab->root.sgotplt->size += 4;
1853 /* We also need to make an entry in the .rel.plt section. */
1854 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
1858 h->plt.offset = (bfd_vma) -1;
1864 h->plt.offset = (bfd_vma) -1;
1868 if (h->got.refcount > 0)
1873 /* Make sure this symbol is output as a dynamic symbol.
1874 Undefined weak syms won't yet be marked as dynamic. */
1875 if (h->dynindx == -1
1876 && !h->forced_local)
1878 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1882 s = htab->root.sgot;
1884 h->got.offset = s->size;
1886 dyn = htab->root.dynamic_sections_created;
1887 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
1888 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
1891 h->got.offset = (bfd_vma) -1;
1893 if (eh->dyn_relocs == NULL)
1896 /* In the shared -Bsymbolic case, discard space allocated for
1897 dynamic pc-relative relocs against symbols which turn out to be
1898 defined in regular objects. For the normal shared case, discard
1899 space for pc-relative relocs that have become local due to symbol
1900 visibility changes. */
1902 if (bfd_link_pic (info))
1908 struct elf_dyn_relocs **pp;
1910 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
1912 p->count -= p->pc_count;
1921 /* Also discard relocs on undefined weak syms with non-default
1923 if (eh->dyn_relocs != NULL
1924 && h->root.type == bfd_link_hash_undefweak)
1926 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1927 eh->dyn_relocs = NULL;
1929 /* Make sure undefined weak symbols are output as a dynamic
1931 else if (h->dynindx == -1
1932 && !h->forced_local)
1934 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1941 /* For the non-shared case, discard space for relocs against
1942 symbols which turn out to need copy relocs or are not
1948 || (htab->root.dynamic_sections_created
1949 && (h->root.type == bfd_link_hash_undefweak
1950 || h->root.type == bfd_link_hash_undefined))))
1952 /* Make sure this symbol is output as a dynamic symbol.
1953 Undefined weak syms won't yet be marked as dynamic. */
1954 if (h->dynindx == -1
1955 && !h->forced_local)
1957 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1961 /* If that succeeded, we know we'll be keeping all the
1963 if (h->dynindx != -1)
1967 eh->dyn_relocs = NULL;
1972 /* Finally, allocate space. */
1973 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1975 asection *sreloc = elf_section_data (p->sec)->sreloc;
1976 sreloc->size += p->count * sizeof (Elf32_External_Rela);
1982 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
1983 read-only sections. */
1986 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
1990 if (h->root.type == bfd_link_hash_indirect)
1993 sec = readonly_dynrelocs (h);
1996 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
1998 info->flags |= DF_TEXTREL;
1999 info->callbacks->minfo
2000 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2001 sec->owner, h->root.root.string, sec);
2003 /* Not an error, just cut short the traversal. */
2009 /* Set the sizes of the dynamic sections. */
2012 lm32_elf_size_dynamic_sections (bfd *output_bfd,
2013 struct bfd_link_info *info)
2015 struct elf_lm32_link_hash_table *htab;
2021 htab = lm32_elf_hash_table (info);
2025 dynobj = htab->root.dynobj;
2026 BFD_ASSERT (dynobj != NULL);
2028 if (htab->root.dynamic_sections_created)
2030 /* Set the contents of the .interp section to the interpreter. */
2031 if (bfd_link_executable (info) && !info->nointerp)
2033 s = bfd_get_linker_section (dynobj, ".interp");
2034 BFD_ASSERT (s != NULL);
2035 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2036 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2040 /* Set up .got offsets for local syms, and space for local dynamic
2042 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2044 bfd_signed_vma *local_got;
2045 bfd_signed_vma *end_local_got;
2046 bfd_size_type locsymcount;
2047 Elf_Internal_Shdr *symtab_hdr;
2050 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2053 for (s = ibfd->sections; s != NULL; s = s->next)
2055 struct elf_dyn_relocs *p;
2057 for (p = ((struct elf_dyn_relocs *)
2058 elf_section_data (s)->local_dynrel);
2062 if (! bfd_is_abs_section (p->sec)
2063 && bfd_is_abs_section (p->sec->output_section))
2065 /* Input section has been discarded, either because
2066 it is a copy of a linkonce section or due to
2067 linker script /DISCARD/, so we'll be discarding
2070 else if (p->count != 0)
2072 srel = elf_section_data (p->sec)->sreloc;
2073 srel->size += p->count * sizeof (Elf32_External_Rela);
2074 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2075 info->flags |= DF_TEXTREL;
2080 local_got = elf_local_got_refcounts (ibfd);
2084 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2085 locsymcount = symtab_hdr->sh_info;
2086 end_local_got = local_got + locsymcount;
2087 s = htab->root.sgot;
2088 srel = htab->root.srelgot;
2089 for (; local_got < end_local_got; ++local_got)
2093 *local_got = s->size;
2095 if (bfd_link_pic (info))
2096 srel->size += sizeof (Elf32_External_Rela);
2099 *local_got = (bfd_vma) -1;
2103 /* Allocate global sym .plt and .got entries, and space for global
2104 sym dynamic relocs. */
2105 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2107 /* We now have determined the sizes of the various dynamic sections.
2108 Allocate memory for them. */
2110 for (s = dynobj->sections; s != NULL; s = s->next)
2112 if ((s->flags & SEC_LINKER_CREATED) == 0)
2115 if (s == htab->root.splt
2116 || s == htab->root.sgot
2117 || s == htab->root.sgotplt
2118 || s == htab->sdynbss)
2120 /* Strip this section if we don't need it; see the
2123 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2125 if (s->size != 0 && s != htab->root.srelplt)
2128 /* We use the reloc_count field as a counter if we need
2129 to copy relocs into the output file. */
2133 /* It's not one of our sections, so don't allocate space. */
2138 /* If we don't need this section, strip it from the
2139 output file. This is mostly to handle .rela.bss and
2140 .rela.plt. We must create both sections in
2141 create_dynamic_sections, because they must be created
2142 before the linker maps input sections to output
2143 sections. The linker does that before
2144 adjust_dynamic_symbol is called, and it is that
2145 function which decides whether anything needs to go
2146 into these sections. */
2147 s->flags |= SEC_EXCLUDE;
2151 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2154 /* Allocate memory for the section contents. We use bfd_zalloc
2155 here in case unused entries are not reclaimed before the
2156 section's contents are written out. This should not happen,
2157 but this way if it does, we get a R_LM32_NONE reloc instead
2159 s->contents = bfd_zalloc (dynobj, s->size);
2160 if (s->contents == NULL)
2164 if (htab->root.dynamic_sections_created)
2166 /* Add some entries to the .dynamic section. We fill in the
2167 values later, in lm32_elf_finish_dynamic_sections, but we
2168 must add the entries now so that we get the correct size for
2169 the .dynamic section. The DT_DEBUG entry is filled in by the
2170 dynamic linker and used by the debugger. */
2171 #define add_dynamic_entry(TAG, VAL) \
2172 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2174 if (bfd_link_executable (info))
2176 if (! add_dynamic_entry (DT_DEBUG, 0))
2180 if (htab->root.splt->size != 0)
2182 if (! add_dynamic_entry (DT_PLTGOT, 0)
2183 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2184 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2185 || ! add_dynamic_entry (DT_JMPREL, 0))
2191 if (! add_dynamic_entry (DT_RELA, 0)
2192 || ! add_dynamic_entry (DT_RELASZ, 0)
2193 || ! add_dynamic_entry (DT_RELAENT,
2194 sizeof (Elf32_External_Rela)))
2197 /* If any dynamic relocs apply to a read-only section,
2198 then we need a DT_TEXTREL entry. */
2199 if ((info->flags & DF_TEXTREL) == 0)
2200 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
2202 if ((info->flags & DF_TEXTREL) != 0)
2204 if (! add_dynamic_entry (DT_TEXTREL, 0))
2209 #undef add_dynamic_entry
2211 /* Allocate .rofixup section. */
2212 if (IS_FDPIC (output_bfd))
2214 struct weak_symbol_list *list_start = NULL, *list_end = NULL;
2215 int rgot_weak_count = 0;
2218 /* Look for deleted sections. */
2219 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2221 for (s = ibfd->sections; s != NULL; s = s->next)
2225 /* Count relocs that need .rofixup entires. */
2226 Elf_Internal_Rela *internal_relocs, *end;
2227 internal_relocs = elf_section_data (s)->relocs;
2228 if (internal_relocs == NULL)
2229 internal_relocs = (_bfd_elf_link_read_relocs (ibfd, s, NULL, NULL, FALSE));
2230 if (internal_relocs != NULL)
2232 end = internal_relocs + s->reloc_count;
2233 while (internal_relocs < end)
2235 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2236 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
2237 unsigned long r_symndx;
2238 struct elf_link_hash_entry *h;
2240 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2241 sym_hashes = elf_sym_hashes (ibfd);
2242 r_symndx = ELF32_R_SYM (internal_relocs->r_info);
2244 if (r_symndx < symtab_hdr->sh_info)
2249 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2250 while (h->root.type == bfd_link_hash_indirect
2251 || h->root.type == bfd_link_hash_warning)
2252 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2255 /* Don't generate entries for weak symbols. */
2256 if (!h || (h && h->root.type != bfd_link_hash_undefweak))
2258 if (!discarded_section (s) && !((bfd_get_section_flags (ibfd, s) & SEC_ALLOC) == 0))
2260 switch (ELF32_R_TYPE (internal_relocs->r_info))
2273 struct weak_symbol_list *current, *new_entry;
2274 /* Is this symbol already in the list? */
2275 for (current = list_start; current; current = current->next)
2277 if (!strcmp (current->name, h->root.root.string))
2280 if (!current && !discarded_section (s) && (bfd_get_section_flags (ibfd, s) & SEC_ALLOC))
2282 /* Will this have an entry in the GOT. */
2283 if (ELF32_R_TYPE (internal_relocs->r_info) == R_LM32_16_GOT)
2285 /* Create a new entry. */
2286 new_entry = malloc (sizeof (struct weak_symbol_list));
2289 new_entry->name = h->root.root.string;
2290 new_entry->next = NULL;
2292 if (list_start == NULL)
2294 list_start = new_entry;
2295 list_end = new_entry;
2299 list_end->next = new_entry;
2300 list_end = new_entry;
2302 /* Increase count of undefined weak symbols in the got. */
2318 list_end = list_start->next;
2320 list_start = list_end;
2323 /* Size sections. */
2324 lm32fdpic_fixup32_section (info)->size
2325 = (r32_count + (htab->root.sgot->size / 4) - rgot_weak_count + 1) * 4;
2326 if (lm32fdpic_fixup32_section (info)->size == 0)
2327 lm32fdpic_fixup32_section (info)->flags |= SEC_EXCLUDE;
2330 lm32fdpic_fixup32_section (info)->contents =
2331 bfd_zalloc (dynobj, lm32fdpic_fixup32_section (info)->size);
2332 if (lm32fdpic_fixup32_section (info)->contents == NULL)
2340 /* Create dynamic sections when linking against a dynamic object. */
2343 lm32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2345 struct elf_lm32_link_hash_table *htab;
2346 flagword flags, pltflags;
2348 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2349 int ptralign = 2; /* 32bit */
2351 htab = lm32_elf_hash_table (info);
2355 /* Make sure we have a GOT - For the case where we have a dynamic object
2356 but none of the relocs in check_relocs */
2357 if (!_bfd_elf_create_got_section (abfd, info))
2359 if (IS_FDPIC (abfd) && (htab->sfixup32 == NULL))
2361 if (! create_rofixup_section (abfd, info))
2365 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2366 .rel[a].bss sections. */
2367 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2368 | SEC_LINKER_CREATED);
2371 pltflags |= SEC_CODE;
2372 if (bed->plt_not_loaded)
2373 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2374 if (bed->plt_readonly)
2375 pltflags |= SEC_READONLY;
2377 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
2378 htab->root.splt = s;
2380 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
2383 if (bed->want_plt_sym)
2385 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2387 struct bfd_link_hash_entry *bh = NULL;
2388 struct elf_link_hash_entry *h;
2390 if (! (_bfd_generic_link_add_one_symbol
2391 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
2392 (bfd_vma) 0, NULL, FALSE,
2393 get_elf_backend_data (abfd)->collect, &bh)))
2395 h = (struct elf_link_hash_entry *) bh;
2397 h->type = STT_OBJECT;
2398 htab->root.hplt = h;
2400 if (bfd_link_pic (info)
2401 && ! bfd_elf_link_record_dynamic_symbol (info, h))
2405 s = bfd_make_section_anyway_with_flags (abfd,
2406 bed->default_use_rela_p
2407 ? ".rela.plt" : ".rel.plt",
2408 flags | SEC_READONLY);
2409 htab->root.srelplt = s;
2411 || ! bfd_set_section_alignment (abfd, s, ptralign))
2414 if (htab->root.sgot == NULL
2415 && !_bfd_elf_create_got_section (abfd, info))
2418 if (bed->want_dynbss)
2420 /* The .dynbss section is a place to put symbols which are defined
2421 by dynamic objects, are referenced by regular objects, and are
2422 not functions. We must allocate space for them in the process
2423 image and use a R_*_COPY reloc to tell the dynamic linker to
2424 initialize them at run time. The linker script puts the .dynbss
2425 section into the .bss section of the final image. */
2426 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2427 SEC_ALLOC | SEC_LINKER_CREATED);
2431 /* The .rel[a].bss section holds copy relocs. This section is not
2432 normally needed. We need to create it here, though, so that the
2433 linker will map it to an output section. We can't just create it
2434 only if we need it, because we will not know whether we need it
2435 until we have seen all the input files, and the first time the
2436 main linker code calls BFD after examining all the input files
2437 (size_dynamic_sections) the input sections have already been
2438 mapped to the output sections. If the section turns out not to
2439 be needed, we can discard it later. We will never need this
2440 section when generating a shared object, since they do not use
2442 if (! bfd_link_pic (info))
2444 s = bfd_make_section_anyway_with_flags (abfd,
2445 (bed->default_use_rela_p
2446 ? ".rela.bss" : ".rel.bss"),
2447 flags | SEC_READONLY);
2450 || ! bfd_set_section_alignment (abfd, s, ptralign))
2458 /* Copy the extra info we tack onto an elf_link_hash_entry. */
2461 lm32_elf_copy_indirect_symbol (struct bfd_link_info *info,
2462 struct elf_link_hash_entry *dir,
2463 struct elf_link_hash_entry *ind)
2465 struct elf_lm32_link_hash_entry * edir;
2466 struct elf_lm32_link_hash_entry * eind;
2468 edir = (struct elf_lm32_link_hash_entry *) dir;
2469 eind = (struct elf_lm32_link_hash_entry *) ind;
2471 if (eind->dyn_relocs != NULL)
2473 if (edir->dyn_relocs != NULL)
2475 struct elf_dyn_relocs **pp;
2476 struct elf_dyn_relocs *p;
2478 /* Add reloc counts against the indirect sym to the direct sym
2479 list. Merge any entries against the same section. */
2480 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2482 struct elf_dyn_relocs *q;
2484 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2485 if (q->sec == p->sec)
2487 q->pc_count += p->pc_count;
2488 q->count += p->count;
2495 *pp = edir->dyn_relocs;
2498 edir->dyn_relocs = eind->dyn_relocs;
2499 eind->dyn_relocs = NULL;
2502 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2506 lm32_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
2508 if (!bfd_link_relocatable (info))
2510 if (!bfd_elf_stack_segment_size (output_bfd, info,
2511 "__stacksize", DEFAULT_STACK_SIZE))
2514 asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
2516 sec->size = info->stacksize >= 0 ? info->stacksize : 0;
2523 lm32_elf_fdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2527 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2528 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2531 if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
2534 if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
2535 || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
2538 /* Copy the stack size. */
2539 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
2540 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
2542 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
2544 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
2545 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
2547 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
2549 /* Rewrite the phdrs, since we're only called after they were first written. */
2550 if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
2551 ->s->sizeof_ehdr, SEEK_SET) != 0
2552 || get_elf_backend_data (obfd)->s->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
2553 elf_elfheader (obfd)->e_phnum) != 0)
2565 #define ELF_ARCH bfd_arch_lm32
2566 #define ELF_TARGET_ID LM32_ELF_DATA
2567 #define ELF_MACHINE_CODE EM_LATTICEMICO32
2568 #define ELF_MAXPAGESIZE 0x1000
2570 #define TARGET_BIG_SYM lm32_elf32_vec
2571 #define TARGET_BIG_NAME "elf32-lm32"
2573 #define bfd_elf32_bfd_reloc_type_lookup lm32_reloc_type_lookup
2574 #define bfd_elf32_bfd_reloc_name_lookup lm32_reloc_name_lookup
2575 #define elf_info_to_howto lm32_info_to_howto_rela
2576 #define elf_info_to_howto_rel NULL
2577 #define elf_backend_rela_normal 1
2578 #define elf_backend_object_p lm32_elf_object_p
2579 #define elf_backend_final_write_processing lm32_elf_final_write_processing
2580 #define elf_backend_stack_align 8
2581 #define elf_backend_can_gc_sections 1
2582 #define elf_backend_can_refcount 1
2583 #define elf_backend_gc_mark_hook lm32_elf_gc_mark_hook
2584 #define elf_backend_plt_readonly 1
2585 #define elf_backend_want_got_plt 1
2586 #define elf_backend_want_plt_sym 0
2587 #define elf_backend_got_header_size 12
2588 #define elf_backend_dtrel_excludes_plt 1
2589 #define bfd_elf32_bfd_link_hash_table_create lm32_elf_link_hash_table_create
2590 #define elf_backend_check_relocs lm32_elf_check_relocs
2591 #define elf_backend_reloc_type_class lm32_elf_reloc_type_class
2592 #define elf_backend_copy_indirect_symbol lm32_elf_copy_indirect_symbol
2593 #define elf_backend_size_dynamic_sections lm32_elf_size_dynamic_sections
2594 #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all
2595 #define elf_backend_create_dynamic_sections lm32_elf_create_dynamic_sections
2596 #define elf_backend_finish_dynamic_sections lm32_elf_finish_dynamic_sections
2597 #define elf_backend_adjust_dynamic_symbol lm32_elf_adjust_dynamic_symbol
2598 #define elf_backend_finish_dynamic_symbol lm32_elf_finish_dynamic_symbol
2599 #define elf_backend_relocate_section lm32_elf_relocate_section
2601 #include "elf32-target.h"
2603 #undef ELF_MAXPAGESIZE
2604 #define ELF_MAXPAGESIZE 0x4000
2607 #undef TARGET_BIG_SYM
2608 #define TARGET_BIG_SYM lm32_elf32_fdpic_vec
2609 #undef TARGET_BIG_NAME
2610 #define TARGET_BIG_NAME "elf32-lm32fdpic"
2612 #define elf32_bed elf32_lm32fdpic_bed
2614 #undef elf_backend_always_size_sections
2615 #define elf_backend_always_size_sections lm32_elf_always_size_sections
2616 #undef bfd_elf32_bfd_copy_private_bfd_data
2617 #define bfd_elf32_bfd_copy_private_bfd_data lm32_elf_fdpic_copy_private_bfd_data
2619 #include "elf32-target.h"