1 /* Hitachi SH64-specific support for 64-bit ELF
2 Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
29 /* Add a suffix for datalabel indirection symbols. It must not match any
30 other symbols; user symbols with or without version or other
31 decoration. It must only be used internally and not emitted by any
33 #define DATALABEL_SUFFIX " DL"
35 #define GOT_BIAS (-((long)-32768))
37 #define PLT_ENTRY_SIZE 64
39 /* Return size of a PLT entry. */
40 #define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE
42 /* Return offset of the PLT0 address in an absolute PLT entry. */
43 #define elf_sh64_plt_plt0_offset(info) 32
45 /* Return offset of the linker in PLT0 entry. */
46 #define elf_sh64_plt0_gotplt_offset(info) 0
48 /* Return offset of the trampoline in PLT entry */
49 #define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */
51 /* Return offset of the symbol in PLT entry. */
52 #define elf_sh64_plt_symbol_offset(info) 0
54 /* Return offset of the relocation in PLT entry. */
55 #define elf_sh64_plt_reloc_offset(info) (info->shared ? 52 : 44)
57 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
59 /* The sh linker needs to keep track of the number of relocs that it
60 decides to copy in check_relocs for each symbol. This is so that
61 it can discard PC relative relocs if it doesn't need them when
62 linking with -Bsymbolic. We store the information in a field
63 extending the regular ELF linker hash table. */
65 /* This structure keeps track of the number of PC relative relocs we
66 have copied for a given symbol. */
68 struct elf_sh64_pcrel_relocs_copied
71 struct elf_sh64_pcrel_relocs_copied *next;
72 /* A section in dynobj. */
74 /* Number of relocs copied in this section. */
78 /* sh ELF linker hash entry. */
80 struct elf_sh64_link_hash_entry
82 struct elf_link_hash_entry root;
84 bfd_vma datalabel_got_offset;
86 /* Number of PC relative relocs copied for this symbol. */
87 struct elf_sh64_pcrel_relocs_copied *pcrel_relocs_copied;
90 /* sh ELF linker hash table. */
92 struct elf_sh64_link_hash_table
94 struct elf_link_hash_table root;
97 /* Traverse an sh ELF linker hash table. */
99 #define sh64_elf64_link_hash_traverse(table, func, info) \
100 (elf_link_hash_traverse \
102 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
105 /* Get the sh ELF linker hash table from a link_info structure. */
107 #define sh64_elf64_hash_table(p) \
108 ((struct elf_sh64_link_hash_table *) ((p)->hash))
110 static boolean sh_elf64_copy_private_data PARAMS ((bfd *, bfd *));
111 static boolean sh_elf64_copy_private_data_internal PARAMS ((bfd *, bfd *));
112 static boolean sh_elf64_merge_private_data PARAMS ((bfd *, bfd *));
113 static bfd_reloc_status_type sh_elf64_ignore_reloc
114 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
115 static bfd_reloc_status_type sh_elf64_reloc
116 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
117 static reloc_howto_type *sh_elf64_reloc_type_lookup
118 PARAMS ((bfd *, bfd_reloc_code_real_type));
119 static void sh_elf64_info_to_howto
120 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
121 static boolean sh_elf64_relocate_section
122 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
123 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
124 static bfd_byte *sh_elf64_get_relocated_section_contents
125 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
126 bfd_byte *, boolean, asymbol **));
127 static boolean sh_elf64_set_mach_from_flags PARAMS ((bfd *));
128 static boolean sh_elf64_set_private_flags PARAMS ((bfd *, flagword));
129 static asection *sh_elf64_gc_mark_hook
130 PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
131 struct elf_link_hash_entry *, Elf_Internal_Sym *));
132 static boolean sh_elf64_gc_sweep_hook
133 PARAMS ((bfd *, struct bfd_link_info *, asection *,
134 const Elf_Internal_Rela *));
135 static boolean sh_elf64_check_relocs
136 PARAMS ((bfd *, struct bfd_link_info *, asection *,
137 const Elf_Internal_Rela *));
138 static int sh64_elf64_get_symbol_type PARAMS ((Elf_Internal_Sym *, int));
139 static boolean sh64_elf64_add_symbol_hook
140 PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
141 const char **, flagword *, asection **, bfd_vma *));
142 extern boolean sh64_elf64_link_output_symbol_hook
143 PARAMS ((bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *,
145 static boolean sh64_elf64_fake_sections
146 PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
147 static void sh64_elf64_final_write_processing PARAMS ((bfd *, boolean));
148 static struct bfd_hash_entry *sh64_elf64_link_hash_newfunc
149 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
150 static struct bfd_link_hash_table *sh64_elf64_link_hash_table_create
152 inline static void movi_shori_putval PARAMS ((bfd *, unsigned long, char *));
153 inline static void movi_3shori_putval PARAMS ((bfd *, bfd_vma, char *));
154 static boolean sh64_elf64_create_dynamic_sections
155 PARAMS ((bfd *, struct bfd_link_info *));
156 static boolean sh64_elf64_adjust_dynamic_symbol
157 PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *));
158 static boolean sh64_elf64_discard_copies
159 PARAMS ((struct elf_sh64_link_hash_entry *, PTR));
160 static boolean sh64_elf64_size_dynamic_sections
161 PARAMS ((bfd *, struct bfd_link_info *));
162 static boolean sh64_elf64_finish_dynamic_symbol
163 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
164 Elf_Internal_Sym *));
165 static boolean sh64_elf64_finish_dynamic_sections
166 PARAMS ((bfd *, struct bfd_link_info *));
168 static reloc_howto_type sh_elf64_howto_table[] = {
170 HOWTO (R_SH_NONE, /* type */
172 0, /* size (0 = byte, 1 = short, 2 = long) */
174 false, /* pc_relative */
176 complain_overflow_dont, /* complain_on_overflow */
177 sh_elf64_ignore_reloc, /* special_function */
178 "R_SH_NONE", /* name */
179 false, /* partial_inplace */
182 false), /* pcrel_offset */
184 /* 32 bit absolute relocation. Setting partial_inplace to true and
185 src_mask to a non-zero value is similar to the COFF toolchain. */
186 HOWTO (R_SH_DIR32, /* type */
188 2, /* size (0 = byte, 1 = short, 2 = long) */
190 false, /* pc_relative */
192 complain_overflow_bitfield, /* complain_on_overflow */
193 sh_elf64_reloc, /* special_function */
194 "R_SH_DIR32", /* name */
195 true, /* partial_inplace */
196 0xffffffff, /* src_mask */
197 0xffffffff, /* dst_mask */
198 false), /* pcrel_offset */
200 /* 32 bit PC relative relocation. */
201 HOWTO (R_SH_REL32, /* type */
203 2, /* size (0 = byte, 1 = short, 2 = long) */
205 true, /* pc_relative */
207 complain_overflow_signed, /* complain_on_overflow */
208 sh_elf64_ignore_reloc, /* special_function */
209 "R_SH_REL32", /* name */
210 false, /* partial_inplace */
212 0xffffffff, /* dst_mask */
213 true), /* pcrel_offset */
215 /* For 32-bit sh, this is R_SH_DIR8WPN. */
218 /* For 32-bit sh, this is R_SH_IND12W. */
221 /* For 32-bit sh, this is R_SH_DIR8WPL. */
224 /* For 32-bit sh, this is R_SH_DIR8WPZ. */
227 /* For 32-bit sh, this is R_SH_DIR8BP. */
230 /* For 32-bit sh, this is R_SH_DIR8W. */
233 /* For 32-bit sh, this is R_SH_DIR8L. */
252 /* The remaining relocs are a GNU extension used for relaxing. The
253 final pass of the linker never needs to do anything with any of
254 these relocs. Any required operations are handled by the
257 /* A 16 bit switch table entry. This is generated for an expression
258 such as ``.word L1 - L2''. The offset holds the difference
259 between the reloc address and L2. */
260 HOWTO (R_SH_SWITCH16, /* type */
262 1, /* size (0 = byte, 1 = short, 2 = long) */
264 false, /* pc_relative */
266 complain_overflow_unsigned, /* complain_on_overflow */
267 sh_elf64_ignore_reloc, /* special_function */
268 "R_SH_SWITCH16", /* name */
269 false, /* partial_inplace */
272 true), /* pcrel_offset */
274 /* A 32 bit switch table entry. This is generated for an expression
275 such as ``.long L1 - L2''. The offset holds the difference
276 between the reloc address and L2. */
277 HOWTO (R_SH_SWITCH32, /* type */
279 2, /* size (0 = byte, 1 = short, 2 = long) */
281 false, /* pc_relative */
283 complain_overflow_unsigned, /* complain_on_overflow */
284 sh_elf64_ignore_reloc, /* special_function */
285 "R_SH_SWITCH32", /* name */
286 false, /* partial_inplace */
289 true), /* pcrel_offset */
291 /* For 32-bit sh, this is R_SH_USES. */
294 /* For 32-bit sh, this is R_SH_COUNT. */
297 /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation,
298 this might be emitted. When linker relaxation is implemented, we
299 might want to use it. */
302 /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation,
303 this might be emitted. When linker relaxation is implemented, we
304 might want to use it. */
307 /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation,
308 this might be emitted. When linker relaxation is implemented, we
309 might want to use it. */
312 /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation,
313 this might be emitted. When linker relaxation is implemented, we
314 might want to use it. */
317 /* An 8 bit switch table entry. This is generated for an expression
318 such as ``.word L1 - L2''. The offset holds the difference
319 between the reloc address and L2. */
320 HOWTO (R_SH_SWITCH8, /* type */
322 0, /* size (0 = byte, 1 = short, 2 = long) */
324 false, /* pc_relative */
326 complain_overflow_unsigned, /* complain_on_overflow */
327 sh_elf64_ignore_reloc, /* special_function */
328 "R_SH_SWITCH8", /* name */
329 false, /* partial_inplace */
332 true), /* pcrel_offset */
334 /* GNU extension to record C++ vtable hierarchy */
335 HOWTO (R_SH_GNU_VTINHERIT, /* type */
337 2, /* size (0 = byte, 1 = short, 2 = long) */
339 false, /* pc_relative */
341 complain_overflow_dont, /* complain_on_overflow */
342 NULL, /* special_function */
343 "R_SH_GNU_VTINHERIT", /* name */
344 false, /* partial_inplace */
347 false), /* pcrel_offset */
349 /* GNU extension to record C++ vtable member usage */
350 HOWTO (R_SH_GNU_VTENTRY, /* type */
352 2, /* size (0 = byte, 1 = short, 2 = long) */
354 false, /* pc_relative */
356 complain_overflow_dont, /* complain_on_overflow */
357 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
358 "R_SH_GNU_VTENTRY", /* name */
359 false, /* partial_inplace */
362 false), /* pcrel_offset */
364 /* For 32-bit sh, this is R_SH_LOOP_START. */
367 /* For 32-bit sh, this is R_SH_LOOP_END. */
378 /* Used in SHLLI.L and SHLRI.L. */
379 HOWTO (R_SH_DIR5U, /* type */
381 2, /* size (0 = byte, 1 = short, 2 = long) */
383 false, /* pc_relative */
385 complain_overflow_unsigned, /* complain_on_overflow */
386 bfd_elf_generic_reloc, /* special_function */
387 "R_SH_DIR5U", /* name */
388 false, /* partial_inplace */
390 0xfc00, /* dst_mask */
391 false), /* pcrel_offset */
393 /* Used in SHARI, SHLLI et al. */
394 HOWTO (R_SH_DIR6U, /* type */
396 2, /* size (0 = byte, 1 = short, 2 = long) */
398 false, /* pc_relative */
400 complain_overflow_unsigned, /* complain_on_overflow */
401 bfd_elf_generic_reloc, /* special_function */
402 "R_SH_DIR6U", /* name */
403 false, /* partial_inplace */
405 0xfc00, /* dst_mask */
406 false), /* pcrel_offset */
408 /* Used in BxxI, LDHI.L et al. */
409 HOWTO (R_SH_DIR6S, /* type */
411 2, /* size (0 = byte, 1 = short, 2 = long) */
413 false, /* pc_relative */
415 complain_overflow_signed, /* complain_on_overflow */
416 bfd_elf_generic_reloc, /* special_function */
417 "R_SH_DIR6S", /* name */
418 false, /* partial_inplace */
420 0xfc00, /* dst_mask */
421 false), /* pcrel_offset */
423 /* Used in ADDI, ANDI et al. */
424 HOWTO (R_SH_DIR10S, /* type */
426 2, /* size (0 = byte, 1 = short, 2 = long) */
428 false, /* pc_relative */
430 complain_overflow_signed, /* complain_on_overflow */
431 bfd_elf_generic_reloc, /* special_function */
432 "R_SH_DIR10S", /* name */
433 false, /* partial_inplace */
435 0xffc00, /* dst_mask */
436 false), /* pcrel_offset */
438 /* Used in LD.UW, ST.W et al. */
439 HOWTO (R_SH_DIR10SW, /* type */
441 2, /* size (0 = byte, 1 = short, 2 = long) */
443 false, /* pc_relative */
445 complain_overflow_signed, /* complain_on_overflow */
446 bfd_elf_generic_reloc, /* special_function */
447 "R_SH_DIR10SW", /* name */
448 false, /* partial_inplace */
450 0xffc00, /* dst_mask */
451 false), /* pcrel_offset */
453 /* Used in LD.L, FLD.S et al. */
454 HOWTO (R_SH_DIR10SL, /* type */
456 2, /* size (0 = byte, 1 = short, 2 = long) */
458 false, /* pc_relative */
460 complain_overflow_signed, /* complain_on_overflow */
461 bfd_elf_generic_reloc, /* special_function */
462 "R_SH_DIR10SL", /* name */
463 false, /* partial_inplace */
465 0xffc00, /* dst_mask */
466 false), /* pcrel_offset */
468 /* Used in FLD.D, FST.P et al. */
469 HOWTO (R_SH_DIR10SQ, /* type */
471 2, /* size (0 = byte, 1 = short, 2 = long) */
473 false, /* pc_relative */
475 complain_overflow_signed, /* complain_on_overflow */
476 bfd_elf_generic_reloc, /* special_function */
477 "R_SH_DIR10SQ", /* name */
478 false, /* partial_inplace */
480 0xffc00, /* dst_mask */
481 false), /* pcrel_offset */
592 /* Relocs for dynamic linking for 32-bit SH would follow. We don't have
593 any dynamic linking support for 64-bit SH at present. */
605 /* Back to SH5 relocations. */
606 /* Used in MOVI and SHORI (x & 65536). */
607 HOWTO (R_SH_GOT_LOW16, /* type */
609 2, /* size (0 = byte, 1 = short, 2 = long) */
611 false, /* pc_relative */
613 complain_overflow_dont, /* complain_on_overflow */
614 bfd_elf_generic_reloc, /* special_function */
615 "R_SH_GOT_LOW16", /* name */
616 false, /* partial_inplace */
618 0x3fffc00, /* dst_mask */
619 false), /* pcrel_offset */
621 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
622 HOWTO (R_SH_GOT_MEDLOW16, /* type */
624 2, /* size (0 = byte, 1 = short, 2 = long) */
626 false, /* pc_relative */
628 complain_overflow_dont, /* complain_on_overflow */
629 bfd_elf_generic_reloc, /* special_function */
630 "R_SH_GOT_MEDLOW16", /* name */
631 false, /* partial_inplace */
633 0x3fffc00, /* dst_mask */
634 false), /* pcrel_offset */
636 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
637 HOWTO (R_SH_GOT_MEDHI16, /* type */
639 2, /* size (0 = byte, 1 = short, 2 = long) */
641 false, /* pc_relative */
643 complain_overflow_dont, /* complain_on_overflow */
644 bfd_elf_generic_reloc, /* special_function */
645 "R_SH_GOT_MEDHI16", /* name */
646 false, /* partial_inplace */
648 0x3fffc00, /* dst_mask */
649 false), /* pcrel_offset */
651 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
652 HOWTO (R_SH_GOT_HI16, /* type */
654 2, /* size (0 = byte, 1 = short, 2 = long) */
656 false, /* pc_relative */
658 complain_overflow_dont, /* complain_on_overflow */
659 bfd_elf_generic_reloc, /* special_function */
660 "R_SH_GOT_HI16", /* name */
661 false, /* partial_inplace */
663 0x3fffc00, /* dst_mask */
664 false), /* pcrel_offset */
666 /* Used in MOVI and SHORI (x & 65536). */
667 HOWTO (R_SH_GOTPLT_LOW16, /* type */
669 2, /* size (0 = byte, 1 = short, 2 = long) */
671 false, /* pc_relative */
673 complain_overflow_dont, /* complain_on_overflow */
674 bfd_elf_generic_reloc, /* special_function */
675 "R_SH_GOTPLT_LOW16", /* name */
676 false, /* partial_inplace */
678 0x3fffc00, /* dst_mask */
679 false), /* pcrel_offset */
681 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
682 HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */
684 2, /* size (0 = byte, 1 = short, 2 = long) */
686 false, /* pc_relative */
688 complain_overflow_dont, /* complain_on_overflow */
689 bfd_elf_generic_reloc, /* special_function */
690 "R_SH_GOTPLT_MEDLOW16", /* name */
691 false, /* partial_inplace */
693 0x3fffc00, /* dst_mask */
694 false), /* pcrel_offset */
696 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
697 HOWTO (R_SH_GOTPLT_MEDHI16, /* type */
699 2, /* size (0 = byte, 1 = short, 2 = long) */
701 false, /* pc_relative */
703 complain_overflow_dont, /* complain_on_overflow */
704 bfd_elf_generic_reloc, /* special_function */
705 "R_SH_GOTPLT_MEDHI16", /* name */
706 false, /* partial_inplace */
708 0x3fffc00, /* dst_mask */
709 false), /* pcrel_offset */
711 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
712 HOWTO (R_SH_GOTPLT_HI16, /* type */
714 2, /* size (0 = byte, 1 = short, 2 = long) */
716 false, /* pc_relative */
718 complain_overflow_dont, /* complain_on_overflow */
719 bfd_elf_generic_reloc, /* special_function */
720 "R_SH_GOTPLT_HI16", /* name */
721 false, /* partial_inplace */
723 0x3fffc00, /* dst_mask */
724 false), /* pcrel_offset */
726 /* Used in MOVI and SHORI (x & 65536). */
727 HOWTO (R_SH_PLT_LOW16, /* type */
729 2, /* size (0 = byte, 1 = short, 2 = long) */
731 true, /* pc_relative */
733 complain_overflow_dont, /* complain_on_overflow */
734 bfd_elf_generic_reloc, /* special_function */
735 "R_SH_PLT_LOW16", /* name */
736 false, /* partial_inplace */
738 0x3fffc00, /* dst_mask */
739 true), /* pcrel_offset */
741 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
742 HOWTO (R_SH_PLT_MEDLOW16, /* type */
744 2, /* size (0 = byte, 1 = short, 2 = long) */
746 true, /* pc_relative */
748 complain_overflow_dont, /* complain_on_overflow */
749 bfd_elf_generic_reloc, /* special_function */
750 "R_SH_PLT_MEDLOW16", /* name */
751 false, /* partial_inplace */
753 0x3fffc00, /* dst_mask */
754 true), /* pcrel_offset */
756 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
757 HOWTO (R_SH_PLT_MEDHI16, /* type */
759 2, /* size (0 = byte, 1 = short, 2 = long) */
761 true, /* pc_relative */
763 complain_overflow_dont, /* complain_on_overflow */
764 bfd_elf_generic_reloc, /* special_function */
765 "R_SH_PLT_MEDHI16", /* name */
766 false, /* partial_inplace */
768 0x3fffc00, /* dst_mask */
769 true), /* pcrel_offset */
771 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
772 HOWTO (R_SH_PLT_HI16, /* type */
774 2, /* size (0 = byte, 1 = short, 2 = long) */
776 true, /* pc_relative */
778 complain_overflow_dont, /* complain_on_overflow */
779 bfd_elf_generic_reloc, /* special_function */
780 "R_SH_PLT_HI16", /* name */
781 false, /* partial_inplace */
783 0x3fffc00, /* dst_mask */
784 true), /* pcrel_offset */
786 /* Used in MOVI and SHORI (x & 65536). */
787 HOWTO (R_SH_GOTOFF_LOW16, /* type */
789 2, /* size (0 = byte, 1 = short, 2 = long) */
791 false, /* pc_relative */
793 complain_overflow_dont, /* complain_on_overflow */
794 bfd_elf_generic_reloc, /* special_function */
795 "R_SH_GOTOFF_LOW16", /* name */
796 false, /* partial_inplace */
798 0x3fffc00, /* dst_mask */
799 false), /* pcrel_offset */
801 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
802 HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */
804 2, /* size (0 = byte, 1 = short, 2 = long) */
806 false, /* pc_relative */
808 complain_overflow_dont, /* complain_on_overflow */
809 bfd_elf_generic_reloc, /* special_function */
810 "R_SH_GOTOFF_MEDLOW16", /* name */
811 false, /* partial_inplace */
813 0x3fffc00, /* dst_mask */
814 false), /* pcrel_offset */
816 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
817 HOWTO (R_SH_GOTOFF_MEDHI16, /* type */
819 2, /* size (0 = byte, 1 = short, 2 = long) */
821 false, /* pc_relative */
823 complain_overflow_dont, /* complain_on_overflow */
824 bfd_elf_generic_reloc, /* special_function */
825 "R_SH_GOTOFF_MEDHI16", /* name */
826 false, /* partial_inplace */
828 0x3fffc00, /* dst_mask */
829 false), /* pcrel_offset */
831 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
832 HOWTO (R_SH_GOTOFF_HI16, /* type */
834 2, /* size (0 = byte, 1 = short, 2 = long) */
836 false, /* pc_relative */
838 complain_overflow_dont, /* complain_on_overflow */
839 bfd_elf_generic_reloc, /* special_function */
840 "R_SH_GOTOFF_HI16", /* name */
841 false, /* partial_inplace */
843 0x3fffc00, /* dst_mask */
844 false), /* pcrel_offset */
846 /* Used in MOVI and SHORI (x & 65536). */
847 HOWTO (R_SH_GOTPC_LOW16, /* type */
849 2, /* size (0 = byte, 1 = short, 2 = long) */
851 true, /* pc_relative */
853 complain_overflow_dont, /* complain_on_overflow */
854 bfd_elf_generic_reloc, /* special_function */
855 "R_SH_GOTPC_LOW16", /* name */
856 false, /* partial_inplace */
858 0x3fffc00, /* dst_mask */
859 true), /* pcrel_offset */
861 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
862 HOWTO (R_SH_GOTPC_MEDLOW16, /* type */
864 2, /* size (0 = byte, 1 = short, 2 = long) */
866 true, /* pc_relative */
868 complain_overflow_dont, /* complain_on_overflow */
869 bfd_elf_generic_reloc, /* special_function */
870 "R_SH_GOTPC_MEDLOW16", /* name */
871 false, /* partial_inplace */
873 0x3fffc00, /* dst_mask */
874 true), /* pcrel_offset */
876 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
877 HOWTO (R_SH_GOTPC_MEDHI16, /* type */
879 2, /* size (0 = byte, 1 = short, 2 = long) */
881 true, /* pc_relative */
883 complain_overflow_dont, /* complain_on_overflow */
884 bfd_elf_generic_reloc, /* special_function */
885 "R_SH_GOTPC_MEDHI16", /* name */
886 false, /* partial_inplace */
888 0x3fffc00, /* dst_mask */
889 true), /* pcrel_offset */
891 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
892 HOWTO (R_SH_GOTPC_HI16, /* type */
894 2, /* size (0 = byte, 1 = short, 2 = long) */
896 true, /* pc_relative */
898 complain_overflow_dont, /* complain_on_overflow */
899 bfd_elf_generic_reloc, /* special_function */
900 "R_SH_GOTPC_HI16", /* name */
901 false, /* partial_inplace */
903 0x3fffc00, /* dst_mask */
904 true), /* pcrel_offset */
906 /* Used in LD.L, FLD.S et al. */
907 HOWTO (R_SH_GOT10BY4, /* type */
909 2, /* size (0 = byte, 1 = short, 2 = long) */
911 false, /* pc_relative */
913 complain_overflow_signed, /* complain_on_overflow */
914 bfd_elf_generic_reloc, /* special_function */
915 "R_SH_GOT10BY4", /* name */
916 false, /* partial_inplace */
918 0xffc00, /* dst_mask */
919 false), /* pcrel_offset */
921 /* Used in LD.L, FLD.S et al. */
922 HOWTO (R_SH_GOTPLT10BY4, /* type */
924 2, /* size (0 = byte, 1 = short, 2 = long) */
926 false, /* pc_relative */
928 complain_overflow_signed, /* complain_on_overflow */
929 bfd_elf_generic_reloc, /* special_function */
930 "R_SH_GOTPLT10BY4", /* name */
931 false, /* partial_inplace */
933 0xffc00, /* dst_mask */
934 false), /* pcrel_offset */
936 /* Used in FLD.D, FST.P et al. */
937 HOWTO (R_SH_GOT10BY8, /* type */
939 2, /* size (0 = byte, 1 = short, 2 = long) */
941 false, /* pc_relative */
943 complain_overflow_signed, /* complain_on_overflow */
944 bfd_elf_generic_reloc, /* special_function */
945 "R_SH_GOT10BY8", /* name */
946 false, /* partial_inplace */
948 0xffc00, /* dst_mask */
949 false), /* pcrel_offset */
951 /* Used in FLD.D, FST.P et al. */
952 HOWTO (R_SH_GOTPLT10BY8, /* type */
954 2, /* size (0 = byte, 1 = short, 2 = long) */
956 false, /* pc_relative */
958 complain_overflow_signed, /* complain_on_overflow */
959 bfd_elf_generic_reloc, /* special_function */
960 "R_SH_GOTPLT10BY8", /* name */
961 false, /* partial_inplace */
963 0xffc00, /* dst_mask */
964 false), /* pcrel_offset */
966 HOWTO (R_SH_COPY64, /* type */
968 4, /* size (0 = byte, 1 = short, 2 = long) */
970 false, /* pc_relative */
972 complain_overflow_dont, /* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_SH_COPY64", /* name */
975 false, /* partial_inplace */
977 ((bfd_vma) 0) - 1, /* dst_mask */
978 false), /* pcrel_offset */
980 HOWTO (R_SH_GLOB_DAT64, /* type */
982 4, /* size (0 = byte, 1 = short, 2 = long) */
984 false, /* pc_relative */
986 complain_overflow_dont, /* complain_on_overflow */
987 bfd_elf_generic_reloc, /* special_function */
988 "R_SH_GLOB_DAT64", /* name */
989 false, /* partial_inplace */
991 ((bfd_vma) 0) - 1, /* dst_mask */
992 false), /* pcrel_offset */
994 HOWTO (R_SH_JMP_SLOT64, /* type */
996 4, /* size (0 = byte, 1 = short, 2 = long) */
998 false, /* pc_relative */
1000 complain_overflow_dont, /* complain_on_overflow */
1001 bfd_elf_generic_reloc, /* special_function */
1002 "R_SH_JMP_SLOT64", /* name */
1003 false, /* partial_inplace */
1005 ((bfd_vma) 0) - 1, /* dst_mask */
1006 false), /* pcrel_offset */
1008 HOWTO (R_SH_RELATIVE64, /* type */
1010 4, /* size (0 = byte, 1 = short, 2 = long) */
1012 false, /* pc_relative */
1014 complain_overflow_dont, /* complain_on_overflow */
1015 bfd_elf_generic_reloc, /* special_function */
1016 "R_SH_RELATIVE64", /* name */
1017 false, /* partial_inplace */
1019 ((bfd_vma) 0) - 1, /* dst_mask */
1020 false), /* pcrel_offset */
1068 /* Relocations for SHmedia code. None of these are partial_inplace or
1069 use the field being relocated. */
1071 /* The assembler will generate this reloc before a block of SHmedia
1072 instructions. A section should be processed as assuming it contains
1073 data, unless this reloc is seen. Note that a block of SHcompact
1074 instructions are instead preceded by R_SH_CODE.
1075 This is currently not implemented, but should be used for SHmedia
1076 linker relaxation. */
1077 HOWTO (R_SH_SHMEDIA_CODE, /* type */
1079 1, /* size (0 = byte, 1 = short, 2 = long) */
1081 false, /* pc_relative */
1083 complain_overflow_unsigned, /* complain_on_overflow */
1084 sh_elf64_ignore_reloc, /* special_function */
1085 "R_SH_SHMEDIA_CODE", /* name */
1086 false, /* partial_inplace */
1089 false), /* pcrel_offset */
1091 /* The assembler will generate this reloc at a PTA or PTB instruction,
1092 and the linker checks the right type of target, or changes a PTA to a
1093 PTB, if the original insn was PT. */
1094 HOWTO (R_SH_PT_16, /* type */
1096 2, /* size (0 = byte, 1 = short, 2 = long) */
1098 true, /* pc_relative */
1100 complain_overflow_signed, /* complain_on_overflow */
1101 bfd_elf_generic_reloc, /* special_function */
1102 "R_SH_PT_16", /* name */
1103 false, /* partial_inplace */
1105 0x3fffc00, /* dst_mask */
1106 true), /* pcrel_offset */
1108 /* Used in unexpanded MOVI. */
1109 HOWTO (R_SH_IMMS16, /* type */
1111 2, /* size (0 = byte, 1 = short, 2 = long) */
1113 false, /* pc_relative */
1115 complain_overflow_signed, /* complain_on_overflow */
1116 bfd_elf_generic_reloc, /* special_function */
1117 "R_SH_IMMS16", /* name */
1118 false, /* partial_inplace */
1120 0x3fffc00, /* dst_mask */
1121 false), /* pcrel_offset */
1123 /* Used in SHORI. */
1124 HOWTO (R_SH_IMMU16, /* type */
1126 2, /* size (0 = byte, 1 = short, 2 = long) */
1128 false, /* pc_relative */
1130 complain_overflow_unsigned, /* complain_on_overflow */
1131 bfd_elf_generic_reloc, /* special_function */
1132 "R_SH_IMMU16", /* name */
1133 false, /* partial_inplace */
1135 0x3fffc00, /* dst_mask */
1136 false), /* pcrel_offset */
1138 /* Used in MOVI and SHORI (x & 65536). */
1139 HOWTO (R_SH_IMM_LOW16, /* type */
1141 2, /* size (0 = byte, 1 = short, 2 = long) */
1143 false, /* pc_relative */
1145 complain_overflow_dont, /* complain_on_overflow */
1146 bfd_elf_generic_reloc, /* special_function */
1147 "R_SH_IMM_LOW16", /* name */
1148 false, /* partial_inplace */
1150 0x3fffc00, /* dst_mask */
1151 false), /* pcrel_offset */
1153 /* Used in MOVI and SHORI ((x - $) & 65536). */
1154 HOWTO (R_SH_IMM_LOW16_PCREL, /* type */
1156 2, /* size (0 = byte, 1 = short, 2 = long) */
1158 true, /* pc_relative */
1160 complain_overflow_dont, /* complain_on_overflow */
1161 bfd_elf_generic_reloc, /* special_function */
1162 "R_SH_IMM_LOW16_PCREL", /* name */
1163 false, /* partial_inplace */
1165 0x3fffc00, /* dst_mask */
1166 true), /* pcrel_offset */
1168 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1169 HOWTO (R_SH_IMM_MEDLOW16, /* type */
1170 16, /* rightshift */
1171 2, /* size (0 = byte, 1 = short, 2 = long) */
1173 false, /* pc_relative */
1175 complain_overflow_dont, /* complain_on_overflow */
1176 bfd_elf_generic_reloc, /* special_function */
1177 "R_SH_IMM_MEDLOW16", /* name */
1178 false, /* partial_inplace */
1180 0x3fffc00, /* dst_mask */
1181 false), /* pcrel_offset */
1183 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */
1184 HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */
1185 16, /* rightshift */
1186 2, /* size (0 = byte, 1 = short, 2 = long) */
1188 true, /* pc_relative */
1190 complain_overflow_dont, /* complain_on_overflow */
1191 bfd_elf_generic_reloc, /* special_function */
1192 "R_SH_IMM_MEDLOW16_PCREL", /* name */
1193 false, /* partial_inplace */
1195 0x3fffc00, /* dst_mask */
1196 true), /* pcrel_offset */
1198 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1199 HOWTO (R_SH_IMM_MEDHI16, /* type */
1200 32, /* rightshift */
1201 2, /* size (0 = byte, 1 = short, 2 = long) */
1203 false, /* pc_relative */
1205 complain_overflow_dont, /* complain_on_overflow */
1206 bfd_elf_generic_reloc, /* special_function */
1207 "R_SH_IMM_MEDHI16", /* name */
1208 false, /* partial_inplace */
1210 0x3fffc00, /* dst_mask */
1211 false), /* pcrel_offset */
1213 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */
1214 HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */
1215 32, /* rightshift */
1216 2, /* size (0 = byte, 1 = short, 2 = long) */
1218 true, /* pc_relative */
1220 complain_overflow_dont, /* complain_on_overflow */
1221 bfd_elf_generic_reloc, /* special_function */
1222 "R_SH_IMM_MEDHI16_PCREL", /* name */
1223 false, /* partial_inplace */
1225 0x3fffc00, /* dst_mask */
1226 true), /* pcrel_offset */
1228 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1229 HOWTO (R_SH_IMM_HI16, /* type */
1230 48, /* rightshift */
1231 2, /* size (0 = byte, 1 = short, 2 = long) */
1233 false, /* pc_relative */
1235 complain_overflow_dont, /* complain_on_overflow */
1236 bfd_elf_generic_reloc, /* special_function */
1237 "R_SH_IMM_HI16", /* name */
1238 false, /* partial_inplace */
1240 0x3fffc00, /* dst_mask */
1241 false), /* pcrel_offset */
1243 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */
1244 HOWTO (R_SH_IMM_HI16_PCREL, /* type */
1245 48, /* rightshift */
1246 2, /* size (0 = byte, 1 = short, 2 = long) */
1248 true, /* pc_relative */
1250 complain_overflow_dont, /* complain_on_overflow */
1251 bfd_elf_generic_reloc, /* special_function */
1252 "R_SH_IMM_HI16_PCREL", /* name */
1253 false, /* partial_inplace */
1255 0x3fffc00, /* dst_mask */
1256 true), /* pcrel_offset */
1258 /* For the .uaquad pseudo. */
1259 HOWTO (R_SH_64, /* type */
1261 4, /* size (0 = byte, 1 = short, 2 = long) */
1263 false, /* pc_relative */
1265 complain_overflow_dont, /* complain_on_overflow */
1266 bfd_elf_generic_reloc, /* special_function */
1267 "R_SH_64", /* name */
1268 false, /* partial_inplace */
1270 ((bfd_vma) 0) - 1, /* dst_mask */
1271 false), /* pcrel_offset */
1273 /* For the .uaquad pseudo, (x - $). */
1274 HOWTO (R_SH_64_PCREL, /* type */
1275 48, /* rightshift */
1276 2, /* size (0 = byte, 1 = short, 2 = long) */
1278 true, /* pc_relative */
1280 complain_overflow_dont, /* complain_on_overflow */
1281 bfd_elf_generic_reloc, /* special_function */
1282 "R_SH_64_PCREL", /* name */
1283 false, /* partial_inplace */
1285 ((bfd_vma) 0) - 1, /* dst_mask */
1286 true), /* pcrel_offset */
1290 /* This function is used for relocs which are only used for relaxing,
1291 which the linker should otherwise ignore. */
1293 static bfd_reloc_status_type
1294 sh_elf64_ignore_reloc (abfd, reloc_entry, symbol, data, input_section,
1295 output_bfd, error_message)
1296 bfd *abfd ATTRIBUTE_UNUSED;
1297 arelent *reloc_entry;
1298 asymbol *symbol ATTRIBUTE_UNUSED;
1299 PTR data ATTRIBUTE_UNUSED;
1300 asection *input_section;
1302 char **error_message ATTRIBUTE_UNUSED;
1304 if (output_bfd != NULL)
1305 reloc_entry->address += input_section->output_offset;
1306 return bfd_reloc_ok;
1309 /* This function is used for normal relocs. This used to be like the COFF
1310 function, and is almost certainly incorrect for other ELF targets.
1312 See sh_elf_reloc in elf32-sh.c for the original. */
1314 static bfd_reloc_status_type
1315 sh_elf64_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
1318 arelent *reloc_entry;
1321 asection *input_section;
1323 char **error_message ATTRIBUTE_UNUSED;
1327 enum elf_sh_reloc_type r_type;
1328 bfd_vma addr = reloc_entry->address;
1329 bfd_byte *hit_data = addr + (bfd_byte *) data;
1331 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
1333 if (output_bfd != NULL)
1335 /* Partial linking--do nothing. */
1336 reloc_entry->address += input_section->output_offset;
1337 return bfd_reloc_ok;
1340 if (symbol_in != NULL
1341 && bfd_is_und_section (symbol_in->section))
1342 return bfd_reloc_undefined;
1344 if (bfd_is_com_section (symbol_in->section))
1347 sym_value = (symbol_in->value +
1348 symbol_in->section->output_section->vma +
1349 symbol_in->section->output_offset);
1354 insn = bfd_get_32 (abfd, hit_data);
1355 insn += sym_value + reloc_entry->addend;
1356 bfd_put_32 (abfd, insn, hit_data);
1364 return bfd_reloc_ok;
1367 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
1369 struct elf_reloc_map
1371 bfd_reloc_code_real_type bfd_reloc_val;
1372 unsigned char elf_reloc_val;
1375 /* An array mapping BFD reloc codes to SH ELF relocs. */
1377 static const struct elf_reloc_map sh64_reloc_map[] =
1379 { BFD_RELOC_NONE, R_SH_NONE },
1380 { BFD_RELOC_32, R_SH_DIR32 },
1381 { BFD_RELOC_CTOR, R_SH_DIR32 },
1382 { BFD_RELOC_32_PCREL, R_SH_REL32 },
1383 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
1384 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
1385 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
1386 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
1387 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
1388 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
1389 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
1390 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
1391 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
1392 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
1393 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
1394 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
1395 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
1396 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
1397 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
1398 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
1399 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
1400 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
1401 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
1402 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
1403 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
1404 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
1405 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
1406 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
1407 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
1408 { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
1409 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
1410 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
1411 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
1412 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
1413 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
1414 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
1415 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
1416 { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
1417 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
1418 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
1419 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
1420 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
1421 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
1422 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
1423 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
1424 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
1425 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
1426 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
1427 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
1428 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
1429 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
1430 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
1431 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
1432 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
1433 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
1434 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
1435 { BFD_RELOC_64, R_SH_64 },
1436 { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
1439 /* Given a BFD reloc code, return the howto structure for the
1440 corresponding SH ELf reloc. */
1442 static reloc_howto_type *
1443 sh_elf64_reloc_type_lookup (abfd, code)
1444 bfd *abfd ATTRIBUTE_UNUSED;
1445 bfd_reloc_code_real_type code;
1449 for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++)
1451 if (sh64_reloc_map[i].bfd_reloc_val == code)
1452 return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val];
1458 /* Given an ELF reloc, fill in the howto field of a relent.
1460 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1463 sh_elf64_info_to_howto (abfd, cache_ptr, dst)
1464 bfd *abfd ATTRIBUTE_UNUSED;
1466 Elf_Internal_Rela *dst;
1470 r = ELF64_R_TYPE (dst->r_info);
1472 BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL);
1473 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
1474 BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2);
1475 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32);
1476 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
1478 cache_ptr->howto = &sh_elf64_howto_table[r];
1481 /* Relocate an SH ELF section.
1483 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1486 sh_elf64_relocate_section (output_bfd, info, input_bfd, input_section,
1487 contents, relocs, local_syms, local_sections)
1488 bfd *output_bfd ATTRIBUTE_UNUSED;
1489 struct bfd_link_info *info;
1491 asection *input_section;
1493 Elf_Internal_Rela *relocs;
1494 Elf_Internal_Sym *local_syms;
1495 asection **local_sections;
1497 Elf_Internal_Shdr *symtab_hdr;
1498 struct elf_link_hash_entry **sym_hashes;
1499 Elf_Internal_Rela *rel, *relend;
1501 bfd_vma *local_got_offsets;
1506 bfd_vma disp, dropped;
1508 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1509 sym_hashes = elf_sym_hashes (input_bfd);
1510 dynobj = elf_hash_table (info)->dynobj;
1511 local_got_offsets = elf_local_got_offsets (input_bfd);
1519 relend = relocs + input_section->reloc_count;
1520 for (; rel < relend; rel++)
1523 reloc_howto_type *howto;
1524 unsigned long r_symndx;
1525 Elf_Internal_Sym *sym;
1527 struct elf_link_hash_entry *h;
1529 bfd_vma addend = (bfd_vma)0;
1530 bfd_reloc_status_type r;
1531 int seen_stt_datalabel = 0;
1533 r_symndx = ELF64_R_SYM (rel->r_info);
1535 r_type = ELF64_R_TYPE (rel->r_info);
1537 if (r_type == (int) R_SH_NONE)
1541 || r_type > R_SH_64_PCREL
1542 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
1543 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1544 || (r_type >= (int) R_SH_DIR8WPN
1545 && r_type <= (int) R_SH_LAST_INVALID_RELOC_2)
1546 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
1547 && r_type <= R_SH_GOTPLT32)
1548 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
1549 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4))
1551 bfd_set_error (bfd_error_bad_value);
1555 howto = sh_elf64_howto_table + r_type;
1557 /* This is a final link. */
1561 if (r_symndx < symtab_hdr->sh_info)
1563 sym = local_syms + r_symndx;
1564 sec = local_sections[r_symndx];
1565 relocation = ((sec->output_section->vma
1566 + sec->output_offset
1568 | ((sym->st_other & STO_SH5_ISA32) != 0));
1570 /* A local symbol never has STO_SH5_ISA32, so we don't need
1571 datalabel processing here. Make sure this does not change
1573 if ((sym->st_other & STO_SH5_ISA32) != 0)
1574 ((*info->callbacks->reloc_dangerous)
1576 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
1577 input_bfd, input_section, rel->r_offset));
1579 if (info->relocateable)
1581 /* This is a relocateable link. We don't have to change
1582 anything, unless the reloc is against a section symbol,
1583 in which case we have to adjust according to where the
1584 section symbol winds up in the output section. */
1585 sym = local_syms + r_symndx;
1586 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1587 goto final_link_relocate;
1594 /* Section symbols are never (?) placed in the hash table, so
1595 we can just ignore hash relocations when creating a
1596 relocateable object file. */
1597 if (info->relocateable)
1600 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1601 while (h->root.type == bfd_link_hash_indirect
1602 || h->root.type == bfd_link_hash_warning)
1604 /* If the reference passes a symbol marked with
1605 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1607 seen_stt_datalabel |= h->type == STT_DATALABEL;
1608 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1611 if (h->root.type == bfd_link_hash_defined
1612 || h->root.type == bfd_link_hash_defweak)
1614 sec = h->root.u.def.section;
1615 /* In these cases, we don't need the relocation value.
1616 We check specially because in some obscure cases
1617 sec->output_section will be NULL. */
1618 if (r_type == R_SH_GOTPC_LOW16
1619 || r_type == R_SH_GOTPC_MEDLOW16
1620 || r_type == R_SH_GOTPC_MEDHI16
1621 || r_type == R_SH_GOTPC_HI16
1622 || ((r_type == R_SH_PLT_LOW16
1623 || r_type == R_SH_PLT_MEDLOW16
1624 || r_type == R_SH_PLT_MEDHI16
1625 || r_type == R_SH_PLT_HI16)
1626 && h->plt.offset != (bfd_vma) -1)
1627 || ((r_type == R_SH_GOT_LOW16
1628 || r_type == R_SH_GOT_MEDLOW16
1629 || r_type == R_SH_GOT_MEDHI16
1630 || r_type == R_SH_GOT_HI16)
1631 && elf_hash_table (info)->dynamic_sections_created
1633 || (! info->symbolic && h->dynindx != -1)
1634 || (h->elf_link_hash_flags
1635 & ELF_LINK_HASH_DEF_REGULAR) == 0))
1636 /* The cases above are those in which relocation is
1637 overwritten in the switch block below. The cases
1638 below are those in which we must defer relocation
1639 to run-time, because we can't resolve absolute
1640 addresses when creating a shared library. */
1642 && ((! info->symbolic && h->dynindx != -1)
1643 || (h->elf_link_hash_flags
1644 & ELF_LINK_HASH_DEF_REGULAR) == 0)
1645 && ((r_type == R_SH_64
1646 && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1647 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1648 || r_type == R_SH_64_PCREL)
1649 && ((input_section->flags & SEC_ALLOC) != 0
1650 /* DWARF will emit R_SH_DIR32 relocations in its
1651 sections against symbols defined externally
1652 in shared libraries. We can't do anything
1654 || (input_section->flags & SEC_DEBUGGING) != 0)))
1656 else if (sec->output_section == NULL)
1658 (*_bfd_error_handler)
1659 (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
1660 bfd_get_filename (input_bfd), h->root.root.string,
1661 bfd_get_section_name (input_bfd, input_section));
1665 relocation = ((h->root.u.def.value
1666 + sec->output_section->vma
1667 + sec->output_offset)
1668 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1669 symbol value, unless we've seen
1670 STT_DATALABEL on the way to it. */
1671 | ((h->other & STO_SH5_ISA32) != 0
1672 && ! seen_stt_datalabel));
1674 else if (h->root.type == bfd_link_hash_undefweak)
1676 else if (info->shared && !info->symbolic && !info->no_undefined)
1680 if (! ((*info->callbacks->undefined_symbol)
1681 (info, h->root.root.string, input_bfd,
1682 input_section, rel->r_offset, true)))
1689 - input_section->output_section->vma
1690 - input_section->output_offset
1693 switch ((int)r_type)
1695 case R_SH_PT_16: dropped = disp & 2; break;
1696 case R_SH_DIR10SW: dropped = disp & 1; break;
1697 case R_SH_DIR10SL: dropped = disp & 3; break;
1698 case R_SH_DIR10SQ: dropped = disp & 7; break;
1702 (*_bfd_error_handler)
1703 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
1704 bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation);
1705 bfd_set_error (bfd_error_bad_value);
1708 switch ((int)r_type)
1713 && (input_section->flags & SEC_ALLOC) != 0
1714 && (r_type != R_SH_64_PCREL
1717 && (! info->symbolic
1718 || (h->elf_link_hash_flags
1719 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
1721 Elf_Internal_Rela outrel;
1722 boolean skip, relocate;
1724 /* When generating a shared object, these relocations
1725 are copied into the output file to be resolved at run
1732 name = (bfd_elf_string_from_elf_section
1734 elf_elfheader (input_bfd)->e_shstrndx,
1735 elf_section_data (input_section)->rel_hdr.sh_name));
1739 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1740 && strcmp (bfd_get_section_name (input_bfd,
1744 sreloc = bfd_get_section_by_name (dynobj, name);
1745 BFD_ASSERT (sreloc != NULL);
1751 = _bfd_elf_section_offset (output_bfd, info,
1752 input_section, rel->r_offset);
1754 if (outrel.r_offset == (bfd_vma) -1)
1757 outrel.r_offset += (input_section->output_section->vma
1758 + input_section->output_offset);
1762 memset (&outrel, 0, sizeof outrel);
1765 else if (r_type == R_SH_64_PCREL)
1767 BFD_ASSERT (h != NULL && h->dynindx != -1);
1769 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1770 outrel.r_addend = rel->r_addend;
1774 /* h->dynindx may be -1 if this symbol was marked to
1777 || ((info->symbolic || h->dynindx == -1)
1778 && (h->elf_link_hash_flags
1779 & ELF_LINK_HASH_DEF_REGULAR) != 0))
1782 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1783 outrel.r_addend = relocation + rel->r_addend;
1787 BFD_ASSERT (h->dynindx != -1);
1789 outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1790 outrel.r_addend = relocation + rel->r_addend;
1794 bfd_elf64_swap_reloca_out (output_bfd, &outrel,
1795 (((Elf64_External_Rela *)
1797 + sreloc->reloc_count));
1798 ++sreloc->reloc_count;
1800 /* If this reloc is against an external symbol, we do
1801 not want to fiddle with the addend. Otherwise, we
1802 need to include the symbol value so that it becomes
1803 an addend for the dynamic reloc. */
1807 else if (r_type == R_SH_64)
1808 addend = rel->r_addend;
1809 goto final_link_relocate;
1811 case R_SH_GOTPLT_LOW16:
1812 case R_SH_GOTPLT_MEDLOW16:
1813 case R_SH_GOTPLT_MEDHI16:
1814 case R_SH_GOTPLT_HI16:
1815 case R_SH_GOTPLT10BY4:
1816 case R_SH_GOTPLT10BY8:
1817 /* Relocation is to the entry for this symbol in the
1818 procedure linkage table. */
1821 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1822 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1826 || h->plt.offset == (bfd_vma) -1
1827 || h->got.offset != (bfd_vma) -1)
1830 /* Relocation is to the entry for this symbol in the global
1831 offset table extension for the procedure linkage table. */
1832 if (sgotplt == NULL)
1834 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1835 BFD_ASSERT (sgotplt != NULL);
1838 relocation = (sgotplt->output_offset
1839 + ((h->plt.offset / elf_sh64_sizeof_plt (info)
1842 relocation -= GOT_BIAS;
1844 goto final_link_relocate;
1847 case R_SH_GOT_LOW16:
1848 case R_SH_GOT_MEDLOW16:
1849 case R_SH_GOT_MEDHI16:
1853 /* Relocation is to the entry for this symbol in the global
1857 sgot = bfd_get_section_by_name (dynobj, ".got");
1858 BFD_ASSERT (sgot != NULL);
1865 off = h->got.offset;
1866 if (seen_stt_datalabel)
1868 struct elf_sh64_link_hash_entry *hsh;
1870 hsh = (struct elf_sh64_link_hash_entry *)h;
1871 off = hsh->datalabel_got_offset;
1873 BFD_ASSERT (off != (bfd_vma) -1);
1875 if (! elf_hash_table (info)->dynamic_sections_created
1877 && (info->symbolic || h->dynindx == -1
1878 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1879 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1880 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
1882 /* This is actually a static link, or it is a
1883 -Bsymbolic link and the symbol is defined
1884 locally, or the symbol was forced to be local
1885 because of a version file. We must initialize
1886 this entry in the global offset table. Since the
1887 offset must always be a multiple of 4, we use the
1888 least significant bit to record whether we have
1889 initialized it already.
1891 When doing a dynamic link, we create a .rela.got
1892 relocation entry to initialize the value. This
1893 is done in the finish_dynamic_symbol routine. */
1898 bfd_put_64 (output_bfd, relocation,
1899 sgot->contents + off);
1900 if (seen_stt_datalabel)
1902 struct elf_sh64_link_hash_entry *hsh;
1904 hsh = (struct elf_sh64_link_hash_entry *)h;
1905 hsh->datalabel_got_offset |= 1;
1912 relocation = sgot->output_offset + off;
1920 BFD_ASSERT (local_got_offsets != NULL
1921 && (local_got_offsets[symtab_hdr->sh_info
1925 off = local_got_offsets[symtab_hdr->sh_info
1930 BFD_ASSERT (local_got_offsets != NULL
1931 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1933 off = local_got_offsets[r_symndx];
1936 /* The offset must always be a multiple of 8. We use
1937 the least significant bit to record whether we have
1938 already generated the necessary reloc. */
1943 bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1948 Elf_Internal_Rela outrel;
1950 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1951 BFD_ASSERT (srelgot != NULL);
1953 outrel.r_offset = (sgot->output_section->vma
1954 + sgot->output_offset
1956 outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1957 outrel.r_addend = relocation;
1958 bfd_elf64_swap_reloca_out (output_bfd, &outrel,
1959 (((Elf64_External_Rela *)
1961 + srelgot->reloc_count));
1962 ++srelgot->reloc_count;
1966 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1968 local_got_offsets[r_symndx] |= 1;
1971 relocation = sgot->output_offset + off;
1974 relocation -= GOT_BIAS;
1976 goto final_link_relocate;
1978 case R_SH_GOTOFF_LOW16:
1979 case R_SH_GOTOFF_MEDLOW16:
1980 case R_SH_GOTOFF_MEDHI16:
1981 case R_SH_GOTOFF_HI16:
1982 /* Relocation is relative to the start of the global offset
1987 sgot = bfd_get_section_by_name (dynobj, ".got");
1988 BFD_ASSERT (sgot != NULL);
1991 /* Note that sgot->output_offset is not involved in this
1992 calculation. We always want the start of .got. If we
1993 defined _GLOBAL_OFFSET_TABLE in a different way, as is
1994 permitted by the ABI, we might have to change this
1996 relocation -= sgot->output_section->vma;
1998 relocation -= GOT_BIAS;
2000 addend = rel->r_addend;
2002 goto final_link_relocate;
2004 case R_SH_GOTPC_LOW16:
2005 case R_SH_GOTPC_MEDLOW16:
2006 case R_SH_GOTPC_MEDHI16:
2007 case R_SH_GOTPC_HI16:
2008 /* Use global offset table as symbol value. */
2012 sgot = bfd_get_section_by_name (dynobj, ".got");
2013 BFD_ASSERT (sgot != NULL);
2016 relocation = sgot->output_section->vma;
2018 relocation += GOT_BIAS;
2020 addend = rel->r_addend;
2022 goto final_link_relocate;
2024 case R_SH_PLT_LOW16:
2025 case R_SH_PLT_MEDLOW16:
2026 case R_SH_PLT_MEDHI16:
2028 /* Relocation is to the entry for this symbol in the
2029 procedure linkage table. */
2031 /* Resolve a PLT reloc against a local symbol directly,
2032 without using the procedure linkage table. */
2034 goto final_link_relocate;
2036 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2037 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2038 goto final_link_relocate;
2040 if (h->plt.offset == (bfd_vma) -1)
2042 /* We didn't make a PLT entry for this symbol. This
2043 happens when statically linking PIC code, or when
2044 using -Bsymbolic. */
2045 goto final_link_relocate;
2050 splt = bfd_get_section_by_name (dynobj, ".plt");
2051 BFD_ASSERT (splt != NULL);
2054 relocation = (splt->output_section->vma
2055 + splt->output_offset
2059 addend = rel->r_addend;
2061 goto final_link_relocate;
2064 case R_SH_SHMEDIA_CODE:
2075 case R_SH_IMM_LOW16:
2076 case R_SH_IMM_LOW16_PCREL:
2077 case R_SH_IMM_MEDLOW16:
2078 case R_SH_IMM_MEDLOW16_PCREL:
2079 case R_SH_IMM_MEDHI16:
2080 case R_SH_IMM_MEDHI16_PCREL:
2082 case R_SH_IMM_HI16_PCREL:
2083 addend = rel->r_addend;
2086 final_link_relocate:
2087 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2088 contents, rel->r_offset,
2089 relocation, addend);
2093 bfd_set_error (bfd_error_bad_value);
2098 if (r != bfd_reloc_ok)
2103 case bfd_reloc_outofrange:
2105 case bfd_reloc_overflow:
2110 name = h->root.root.string;
2113 name = (bfd_elf_string_from_elf_section
2114 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2118 name = bfd_section_name (input_bfd, sec);
2120 if (! ((*info->callbacks->reloc_overflow)
2121 (info, name, howto->name, (bfd_vma) 0,
2122 input_bfd, input_section, rel->r_offset)))
2133 /* This is a version of bfd_generic_get_relocated_section_contents
2134 that uses sh_elf64_relocate_section.
2136 See sh_elf_relocate_section in elf32-sh.c for the original. */
2139 sh_elf64_get_relocated_section_contents (output_bfd, link_info, link_order,
2140 data, relocateable, symbols)
2142 struct bfd_link_info *link_info;
2143 struct bfd_link_order *link_order;
2145 boolean relocateable;
2148 Elf_Internal_Shdr *symtab_hdr;
2149 Elf_Internal_Shdr *shndx_hdr;
2150 asection *input_section = link_order->u.indirect.section;
2151 bfd *input_bfd = input_section->owner;
2152 asection **sections = NULL;
2153 Elf_Internal_Rela *internal_relocs = NULL;
2154 Elf64_External_Sym *external_syms = NULL;
2155 Elf_External_Sym_Shndx *shndx_buf = NULL;
2156 Elf_External_Sym_Shndx *shndx;
2157 Elf_Internal_Sym *internal_syms = NULL;
2159 /* We only need to handle the case of relaxing, or of having a
2160 particular set of section contents, specially. */
2162 || elf_section_data (input_section)->this_hdr.contents == NULL)
2163 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2168 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2169 shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr;
2171 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2172 input_section->_raw_size);
2174 if ((input_section->flags & SEC_RELOC) != 0
2175 && input_section->reloc_count > 0)
2177 Elf_Internal_Sym *isymp;
2179 Elf64_External_Sym *esym, *esymend;
2182 if (symtab_hdr->contents != NULL)
2183 external_syms = (Elf64_External_Sym *) symtab_hdr->contents;
2186 amt = symtab_hdr->sh_info;
2187 amt *= sizeof (Elf64_External_Sym);
2189 external_syms = (Elf64_External_Sym *) bfd_malloc (amt);
2190 if (external_syms == NULL && symtab_hdr->sh_info > 0)
2193 if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
2194 || (bfd_bread ((PTR) external_syms, amt, input_bfd) != amt))
2198 if (symtab_hdr->sh_info != 0 && shndx_hdr->sh_size != 0)
2200 amt = symtab_hdr->sh_info;
2201 amt *= sizeof (Elf_External_Sym_Shndx);
2203 shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
2204 if (shndx_buf == NULL)
2207 if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0
2208 || bfd_bread ((PTR) shndx_buf, amt, input_bfd) != amt)
2212 internal_relocs = (_bfd_elf64_link_read_relocs
2213 (input_bfd, input_section, (PTR) NULL,
2214 (Elf_Internal_Rela *) NULL, false));
2215 if (internal_relocs == NULL)
2218 internal_syms = ((Elf_Internal_Sym *)
2219 bfd_malloc (symtab_hdr->sh_info
2220 * sizeof (Elf_Internal_Sym)));
2221 if (internal_syms == NULL && symtab_hdr->sh_info > 0)
2224 sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2225 * sizeof (asection *));
2226 if (sections == NULL && symtab_hdr->sh_info > 0)
2229 isymp = internal_syms;
2231 esym = external_syms;
2232 esymend = esym + symtab_hdr->sh_info;
2234 for (; esym < esymend;
2235 ++esym, ++isymp, ++secpp, shndx = (shndx ? shndx + 1 : NULL))
2239 bfd_elf64_swap_symbol_in (input_bfd, esym, shndx, isymp);
2241 if (isymp->st_shndx == SHN_UNDEF)
2242 isec = bfd_und_section_ptr;
2243 else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
2244 isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2245 else if (isymp->st_shndx == SHN_ABS)
2246 isec = bfd_abs_section_ptr;
2247 else if (isymp->st_shndx == SHN_COMMON)
2248 isec = bfd_com_section_ptr;
2258 if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2259 input_section, data, internal_relocs,
2260 internal_syms, sections))
2263 if (sections != NULL)
2266 if (internal_syms != NULL)
2267 free (internal_syms);
2268 internal_syms = NULL;
2269 if (external_syms != NULL && symtab_hdr->contents == NULL)
2270 free (external_syms);
2271 external_syms = NULL;
2272 if (internal_relocs != elf_section_data (input_section)->relocs)
2273 free (internal_relocs);
2274 internal_relocs = NULL;
2280 if (internal_relocs != NULL
2281 && internal_relocs != elf_section_data (input_section)->relocs)
2282 free (internal_relocs);
2283 if (external_syms != NULL && symtab_hdr->contents == NULL)
2284 free (external_syms);
2285 if (internal_syms != NULL)
2286 free (internal_syms);
2287 if (sections != NULL)
2292 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2295 sh64_elf64_fake_sections (output_bfd, elf_section_hdr, asect)
2296 bfd *output_bfd ATTRIBUTE_UNUSED;
2297 Elf_Internal_Shdr *elf_section_hdr;
2300 /* Code sections can only contain SH64 code, so mark them as such. */
2301 if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2302 elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2308 sh_elf64_set_mach_from_flags (abfd)
2311 flagword flags = elf_elfheader (abfd)->e_flags;
2313 switch (flags & EF_SH_MACH_MASK)
2316 /* Just one, but keep the switch construct to make additions easy. */
2317 bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2321 bfd_set_error (bfd_error_wrong_format);
2327 /* Function to keep SH64 specific file flags.
2329 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2332 sh_elf64_set_private_flags (abfd, flags)
2336 BFD_ASSERT (! elf_flags_init (abfd)
2337 || elf_elfheader (abfd)->e_flags == flags);
2339 elf_elfheader (abfd)->e_flags = flags;
2340 elf_flags_init (abfd) = true;
2341 return sh_elf64_set_mach_from_flags (abfd);
2344 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2345 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2348 sh_elf64_copy_private_data_internal (ibfd, obfd)
2352 Elf_Internal_Shdr **o_shdrp;
2356 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2357 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2360 o_shdrp = elf_elfsections (obfd);
2361 for (osec = obfd->sections; osec; osec = osec->next)
2363 int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx;
2364 for (isec = ibfd->sections; isec; isec = isec->next)
2366 if (strcmp (osec->name, isec->name) == 0)
2368 /* Note that we're not disallowing mixing data and code. */
2369 if ((elf_section_data (isec)->this_hdr.sh_flags
2370 & SHF_SH5_ISA32) != 0)
2371 o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32;
2377 return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2381 sh_elf64_copy_private_data (ibfd, obfd)
2385 return sh_elf64_copy_private_data_internal (ibfd, obfd);
2389 sh_elf64_merge_private_data (ibfd, obfd)
2393 flagword old_flags, new_flags;
2395 if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
2398 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2399 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2402 if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2406 if (bfd_get_arch_size (ibfd) == 32
2407 && bfd_get_arch_size (obfd) == 64)
2408 msg = _("%s: compiled as 32-bit object and %s is 64-bit");
2409 else if (bfd_get_arch_size (ibfd) == 64
2410 && bfd_get_arch_size (obfd) == 32)
2411 msg = _("%s: compiled as 64-bit object and %s is 32-bit");
2413 msg = _("%s: object size does not match that of target %s");
2415 (*_bfd_error_handler) (msg, bfd_get_filename (ibfd),
2416 bfd_get_filename (obfd));
2417 bfd_set_error (bfd_error_wrong_format);
2421 old_flags = elf_elfheader (obfd)->e_flags;
2422 new_flags = elf_elfheader (ibfd)->e_flags;
2423 if (! elf_flags_init (obfd))
2425 /* This happens when ld starts out with a 'blank' output file. */
2426 elf_flags_init (obfd) = true;
2427 elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2429 /* We don't allow linking in anything else than SH64 code, and since
2430 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2431 here as things change. */
2432 else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2434 (*_bfd_error_handler)
2435 ("%s: does not use the SH64 64-bit ABI as previous modules do",
2436 bfd_get_filename (ibfd));
2437 bfd_set_error (bfd_error_bad_value);
2441 sh_elf64_copy_private_data_internal (ibfd, obfd);
2443 /* I can't think of anything sane other than old_flags being EF_SH5 and
2444 that we need to preserve that. */
2445 elf_elfheader (obfd)->e_flags = old_flags;
2447 return sh_elf64_set_mach_from_flags (obfd);
2450 /* Return the section that should be marked against GC for a given
2454 sh_elf64_gc_mark_hook (abfd, info, rel, h, sym)
2456 struct bfd_link_info *info ATTRIBUTE_UNUSED;
2457 Elf_Internal_Rela *rel;
2458 struct elf_link_hash_entry *h;
2459 Elf_Internal_Sym *sym;
2463 switch (ELF64_R_TYPE (rel->r_info))
2465 case R_SH_GNU_VTINHERIT:
2466 case R_SH_GNU_VTENTRY:
2470 switch (h->root.type)
2472 case bfd_link_hash_defined:
2473 case bfd_link_hash_defweak:
2474 return h->root.u.def.section;
2476 case bfd_link_hash_common:
2477 return h->root.u.c.p->section;
2486 if (!(elf_bad_symtab (abfd)
2487 && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
2488 && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
2489 && sym->st_shndx != SHN_COMMON))
2490 return bfd_section_from_elf_index (abfd, sym->st_shndx);
2496 /* Update the got entry reference counts for the section being removed. */
2499 sh_elf64_gc_sweep_hook (abfd, info, sec, relocs)
2500 bfd *abfd ATTRIBUTE_UNUSED;
2501 struct bfd_link_info *info ATTRIBUTE_UNUSED;
2502 asection *sec ATTRIBUTE_UNUSED;
2503 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
2505 /* No got and plt entries for 64-bit SH at present. */
2509 /* Look through the relocs for a section during the first phase.
2510 Since we don't do .gots or .plts, we just need to consider the
2511 virtual table relocs for gc. */
2514 sh_elf64_check_relocs (abfd, info, sec, relocs)
2516 struct bfd_link_info *info;
2518 const Elf_Internal_Rela *relocs;
2520 Elf_Internal_Shdr *symtab_hdr;
2521 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
2522 const Elf_Internal_Rela *rel;
2523 const Elf_Internal_Rela *rel_end;
2525 bfd_vma *local_got_offsets;
2534 if (info->relocateable)
2537 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2538 sym_hashes = elf_sym_hashes (abfd);
2539 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf64_External_Sym);
2540 if (!elf_bad_symtab (abfd))
2541 sym_hashes_end -= symtab_hdr->sh_info;
2543 dynobj = elf_hash_table (info)->dynobj;
2544 local_got_offsets = elf_local_got_offsets (abfd);
2546 rel_end = relocs + sec->reloc_count;
2547 for (rel = relocs; rel < rel_end; rel++)
2549 struct elf_link_hash_entry *h;
2550 unsigned long r_symndx;
2552 r_symndx = ELF64_R_SYM (rel->r_info);
2553 if (r_symndx < symtab_hdr->sh_info)
2556 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2558 /* Some relocs require a global offset table. */
2561 switch (ELF64_R_TYPE (rel->r_info))
2563 case R_SH_GOTPLT_LOW16:
2564 case R_SH_GOTPLT_MEDLOW16:
2565 case R_SH_GOTPLT_MEDHI16:
2566 case R_SH_GOTPLT_HI16:
2567 case R_SH_GOTPLT10BY4:
2568 case R_SH_GOTPLT10BY8:
2569 case R_SH_GOT_LOW16:
2570 case R_SH_GOT_MEDLOW16:
2571 case R_SH_GOT_MEDHI16:
2575 case R_SH_GOTOFF_LOW16:
2576 case R_SH_GOTOFF_MEDLOW16:
2577 case R_SH_GOTOFF_MEDHI16:
2578 case R_SH_GOTOFF_HI16:
2579 case R_SH_GOTPC_LOW16:
2580 case R_SH_GOTPC_MEDLOW16:
2581 case R_SH_GOTPC_MEDHI16:
2582 case R_SH_GOTPC_HI16:
2583 elf_hash_table (info)->dynobj = dynobj = abfd;
2584 if (! _bfd_elf_create_got_section (dynobj, info))
2593 switch (ELF64_R_TYPE (rel->r_info))
2595 /* This relocation describes the C++ object vtable hierarchy.
2596 Reconstruct it for later use during GC. */
2597 case R_SH_GNU_VTINHERIT:
2598 if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2602 /* This relocation describes which C++ vtable entries are actually
2603 used. Record for later use during GC. */
2604 case R_SH_GNU_VTENTRY:
2605 if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2610 case R_SH_GOT_LOW16:
2611 case R_SH_GOT_MEDLOW16:
2612 case R_SH_GOT_MEDHI16:
2616 /* This symbol requires a global offset table entry. */
2620 sgot = bfd_get_section_by_name (dynobj, ".got");
2621 BFD_ASSERT (sgot != NULL);
2625 && (h != NULL || info->shared))
2627 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2628 if (srelgot == NULL)
2630 srelgot = bfd_make_section (dynobj, ".rela.got");
2632 || ! bfd_set_section_flags (dynobj, srelgot,
2637 | SEC_LINKER_CREATED
2639 || ! bfd_set_section_alignment (dynobj, srelgot, 2))
2646 if (h->type == STT_DATALABEL)
2648 struct elf_sh64_link_hash_entry *hsh;
2650 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2651 hsh = (struct elf_sh64_link_hash_entry *)h;
2652 if (hsh->datalabel_got_offset != (bfd_vma) -1)
2655 hsh->datalabel_got_offset = sgot->_raw_size;
2659 if (h->got.offset != (bfd_vma) -1)
2661 /* We have already allocated space in the .got. */
2664 h->got.offset = sgot->_raw_size;
2667 /* Make sure this symbol is output as a dynamic symbol. */
2668 if (h->dynindx == -1)
2670 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
2674 srelgot->_raw_size += sizeof (Elf64_External_Rela);
2678 /* This is a global offset table entry for a local
2680 if (local_got_offsets == NULL)
2683 register unsigned int i;
2685 size = symtab_hdr->sh_info * sizeof (bfd_vma);
2686 /* Reserve space for both the datalabel and
2687 codelabel local GOT offsets. */
2689 local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2690 if (local_got_offsets == NULL)
2692 elf_local_got_offsets (abfd) = local_got_offsets;
2693 for (i = 0; i < symtab_hdr->sh_info; i++)
2694 local_got_offsets[i] = (bfd_vma) -1;
2695 for (; i < 2 * symtab_hdr->sh_info; i++)
2696 local_got_offsets[i] = (bfd_vma) -1;
2698 if ((rel->r_addend & 1) != 0)
2700 if (local_got_offsets[symtab_hdr->sh_info
2701 + r_symndx] != (bfd_vma) -1)
2703 /* We have already allocated space in the .got. */
2706 local_got_offsets[symtab_hdr->sh_info
2707 + r_symndx] = sgot->_raw_size;
2711 if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2713 /* We have already allocated space in the .got. */
2716 local_got_offsets[r_symndx] = sgot->_raw_size;
2721 /* If we are generating a shared object, we need to
2722 output a R_SH_RELATIVE reloc so that the dynamic
2723 linker can adjust this GOT entry. */
2724 srelgot->_raw_size += sizeof (Elf64_External_Rela);
2728 sgot->_raw_size += 8;
2732 case R_SH_GOTPLT_LOW16:
2733 case R_SH_GOTPLT_MEDLOW16:
2734 case R_SH_GOTPLT_MEDHI16:
2735 case R_SH_GOTPLT_HI16:
2736 case R_SH_GOTPLT10BY4:
2737 case R_SH_GOTPLT10BY8:
2738 /* If this is a local symbol, we resolve it directly without
2739 creating a procedure linkage table entry. */
2742 || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2743 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2747 || h->got.offset != (bfd_vma) -1)
2750 /* Make sure this symbol is output as a dynamic symbol. */
2751 if (h->dynindx == -1)
2753 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
2757 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2761 case R_SH_PLT_LOW16:
2762 case R_SH_PLT_MEDLOW16:
2763 case R_SH_PLT_MEDHI16:
2765 /* This symbol requires a procedure linkage table entry. We
2766 actually build the entry in adjust_dynamic_symbol,
2767 because this might be a case of linking PIC code which is
2768 never referenced by a dynamic object, in which case we
2769 don't need to generate a procedure linkage table entry
2772 /* If this is a local symbol, we resolve it directly without
2773 creating a procedure linkage table entry. */
2777 if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2778 || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2781 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2788 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
2790 /* If we are creating a shared library, and this is a reloc
2791 against a global symbol, or a non PC relative reloc
2792 against a local symbol, then we need to copy the reloc
2793 into the shared library. However, if we are linking with
2794 -Bsymbolic, we do not need to copy a reloc against a
2795 global symbol which is defined in an object we are
2796 including in the link (i.e., DEF_REGULAR is set). At
2797 this point we have not seen all the input files, so it is
2798 possible that DEF_REGULAR is not set now but will be set
2799 later (it is never cleared). We account for that
2800 possibility below by storing information in the
2801 pcrel_relocs_copied field of the hash table entry. */
2803 && (sec->flags & SEC_ALLOC) != 0
2804 && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2806 && (! info->symbolic
2807 || (h->elf_link_hash_flags
2808 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
2810 /* When creating a shared object, we must copy these
2811 reloc types into the output file. We create a reloc
2812 section in dynobj and make room for this reloc. */
2817 name = (bfd_elf_string_from_elf_section
2819 elf_elfheader (abfd)->e_shstrndx,
2820 elf_section_data (sec)->rel_hdr.sh_name));
2824 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2825 && strcmp (bfd_get_section_name (abfd, sec),
2828 sreloc = bfd_get_section_by_name (dynobj, name);
2833 sreloc = bfd_make_section (dynobj, name);
2834 flags = (SEC_HAS_CONTENTS | SEC_READONLY
2835 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2836 if ((sec->flags & SEC_ALLOC) != 0)
2837 flags |= SEC_ALLOC | SEC_LOAD;
2839 || ! bfd_set_section_flags (dynobj, sreloc, flags)
2840 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
2845 sreloc->_raw_size += sizeof (Elf64_External_Rela);
2847 /* If we are linking with -Bsymbolic, and this is a
2848 global symbol, we count the number of PC relative
2849 relocations we have entered for this symbol, so that
2850 we can discard them again if the symbol is later
2851 defined by a regular object. Note that this function
2852 is only called if we are using an elf_sh linker
2853 hash table, which means that h is really a pointer to
2854 an elf_sh_link_hash_entry. */
2855 if (h != NULL && info->symbolic
2856 && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2858 struct elf_sh64_link_hash_entry *eh;
2859 struct elf_sh64_pcrel_relocs_copied *p;
2861 eh = (struct elf_sh64_link_hash_entry *) h;
2863 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2864 if (p->section == sreloc)
2869 p = ((struct elf_sh64_pcrel_relocs_copied *)
2870 bfd_alloc (dynobj, sizeof *p));
2873 p->next = eh->pcrel_relocs_copied;
2874 eh->pcrel_relocs_copied = p;
2875 p->section = sreloc;
2891 sh64_elf64_get_symbol_type (elf_sym, type)
2892 Elf_Internal_Sym * elf_sym;
2895 if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2896 return STT_DATALABEL;
2901 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2902 Either file can presumably exist without the other, but do not differ
2903 in elf-size-ness. How to share?
2905 Hook called by the linker routine which adds symbols from an object
2906 file. We must make indirect symbols for undefined symbols marked with
2907 STT_DATALABEL, so relocations passing them will pick up that attribute
2908 and neutralize STO_SH5_ISA32 found on the symbol definition.
2910 There is a problem, though: We want to fill in the hash-table entry for
2911 this symbol and signal to the caller that no further processing is
2912 needed. But we don't have the index for this hash-table entry. We
2913 rely here on that the current entry is the first hash-entry with NULL,
2914 which seems brittle. Also, iterating over the hash-table to find that
2915 entry is a linear operation on the number of symbols in this input
2916 file, and this function should take constant time, so that's not good
2917 too. Only comfort is that DataLabel references should only be found in
2918 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2919 into adding an option to elf_add_symbol_hook (preferably) for the index
2920 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2924 sh64_elf64_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
2926 struct bfd_link_info *info;
2927 const Elf_Internal_Sym *sym;
2929 flagword *flagsp ATTRIBUTE_UNUSED;
2933 /* We want to do this for relocatable as well as final linking. */
2934 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2936 struct elf_link_hash_entry *h;
2938 /* For relocateable links, we register the DataLabel sym in its own
2939 right, and tweak the name when it's output. Otherwise, we make
2940 an indirect symbol of it. */
2942 = info->relocateable || info->emitrelocations
2943 ? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2946 = bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2947 struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2949 BFD_ASSERT (sym_hash != NULL);
2951 /* Allocation may fail. */
2952 if (dl_name == NULL)
2955 strcpy (dl_name, *namep);
2956 strcat (dl_name, DATALABEL_SUFFIX);
2958 h = (struct elf_link_hash_entry *)
2959 bfd_link_hash_lookup (info->hash, dl_name, false, false, false);
2963 /* No previous datalabel symbol. Make one. */
2964 if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2965 flags, *secp, *valp,
2967 get_elf_backend_data (abfd)->collect,
2968 (struct bfd_link_hash_entry **) &h))
2974 h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF;
2975 h->type = STT_DATALABEL;
2978 /* If a new symbol was created, it holds the allocated name.
2979 Otherwise, we don't need it anymore and should deallocate it. */
2982 if (h->type != STT_DATALABEL
2983 || ((info->relocateable || info->emitrelocations)
2984 && h->root.type != bfd_link_hash_undefined)
2985 || (! info->relocateable && !info->emitrelocations
2986 && h->root.type != bfd_link_hash_indirect))
2988 /* Make sure we don't get confused on invalid input. */
2989 (*_bfd_error_handler)
2990 (_("%s: encountered datalabel symbol in input"),
2991 bfd_get_filename (abfd));
2992 bfd_set_error (bfd_error_bad_value);
2996 /* Now find the hash-table slot for this entry and fill it in. */
2997 while (*sym_hash != NULL)
3001 /* Signal to caller to skip this symbol - we've handled it. */
3008 /* This hook function is called before the linker writes out a global
3009 symbol. For relocatable links, DataLabel symbols will be present in
3010 linker output. We cut off the special suffix on those symbols, so the
3011 right name appears in the output.
3013 When linking and emitting relocations, there can appear global symbols
3014 that are not referenced by relocs, but rather only implicitly through
3015 DataLabel references, a relation that is not visible to the linker.
3016 Since no stripping of global symbols in done when doing such linking,
3017 we don't need to look up and make sure to emit the main symbol for each
3018 DataLabel symbol. */
3021 sh64_elf64_link_output_symbol_hook (abfd, info, cname, sym, input_sec)
3022 bfd *abfd ATTRIBUTE_UNUSED;
3023 struct bfd_link_info *info;
3025 Elf_Internal_Sym *sym;
3026 asection *input_sec ATTRIBUTE_UNUSED;
3028 char *name = (char *) cname;
3030 if (info->relocateable || info->emitrelocations)
3032 if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
3033 name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
3039 /* Set bit 0 on the entry address; it always points to SHmedia code. This
3040 is mostly for symmetry with the 32-bit format, where code can be
3041 SHcompact and we need to make a distinction to make sure execution
3042 starts in the right ISA mode. It is also convenient for a loader,
3043 which would otherwise have to set this bit when loading a TR register
3044 before jumping to the program entry. */
3047 sh64_elf64_final_write_processing (abfd, linker)
3049 boolean linker ATTRIBUTE_UNUSED;
3051 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
3052 numerically, but we currently lack the infrastructure to recognize
3053 that: The entry symbol, and info whether it is numeric or a symbol
3054 name is kept private in the linker. */
3055 if (elf_elfheader (abfd)->e_type == ET_EXEC)
3056 elf_elfheader (abfd)->e_entry |= 1;
3059 /* First entry in an absolute procedure linkage table look like this. */
3061 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
3063 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
3064 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
3065 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
3066 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
3067 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3068 0x6b, 0xf1, 0x46, 0x00, /* ptabs r17, tr0 */
3069 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3070 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3071 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3072 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3073 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3074 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3075 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3076 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3077 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3078 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3081 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
3083 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
3084 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
3085 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
3086 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
3087 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3088 0x00, 0x46, 0xf1, 0x6b, /* ptabs r17, tr0 */
3089 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3090 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3091 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3092 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3093 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3094 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3095 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3096 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3097 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3098 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3101 /* Sebsequent entries in an absolute procedure linkage table look like
3104 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
3106 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
3107 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
3108 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
3109 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
3110 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
3111 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3112 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3113 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3114 0xcc, 0x00, 0x01, 0x90, /* movi .PLT0 >> 16, r25 */
3115 0xc8, 0x00, 0x01, 0x90, /* shori .PLT0 & 65535, r25 */
3116 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3117 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3118 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3119 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3120 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3121 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3124 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
3126 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
3127 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3128 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3129 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3130 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
3131 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3132 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3133 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3134 0x90, 0x01, 0x00, 0xcc, /* movi .PLT0 >> 16, r25 */
3135 0x90, 0x01, 0x00, 0xc8, /* shori .PLT0 & 65535, r25 */
3136 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3137 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3138 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3139 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3140 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3141 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3144 /* Entries in a PIC procedure linkage table look like this. */
3146 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3148 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
3149 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
3150 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
3151 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3152 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3153 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3154 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3155 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3156 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
3157 0x00, 0xcb, 0x45, 0x10, /* sub r12, r17, r17 */
3158 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3159 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3160 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3161 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3162 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3163 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3166 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3168 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
3169 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3170 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
3171 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3172 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3173 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3174 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3175 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3176 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3177 0x10, 0x45, 0xcb, 0x00, /* sub r12, r17, r17 */
3178 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3179 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3180 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3181 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3182 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3183 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3186 static const bfd_byte *elf_sh64_plt0_entry;
3187 static const bfd_byte *elf_sh64_plt_entry;
3188 static const bfd_byte *elf_sh64_pic_plt_entry;
3190 /* Create an entry in an sh ELF linker hash table. */
3192 static struct bfd_hash_entry *
3193 sh64_elf64_link_hash_newfunc (entry, table, string)
3194 struct bfd_hash_entry *entry;
3195 struct bfd_hash_table *table;
3198 struct elf_sh64_link_hash_entry *ret =
3199 (struct elf_sh64_link_hash_entry *) entry;
3201 /* Allocate the structure if it has not already been allocated by a
3203 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3204 ret = ((struct elf_sh64_link_hash_entry *)
3205 bfd_hash_allocate (table,
3206 sizeof (struct elf_sh64_link_hash_entry)));
3207 if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3208 return (struct bfd_hash_entry *) ret;
3210 /* Call the allocation method of the superclass. */
3211 ret = ((struct elf_sh64_link_hash_entry *)
3212 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3214 if (ret != (struct elf_sh64_link_hash_entry *) NULL)
3216 ret->pcrel_relocs_copied = NULL;
3217 ret->datalabel_got_offset = (bfd_vma) -1;
3220 return (struct bfd_hash_entry *) ret;
3223 /* Create an sh64 ELF linker hash table. */
3225 static struct bfd_link_hash_table *
3226 sh64_elf64_link_hash_table_create (abfd)
3229 struct elf_sh64_link_hash_table *ret;
3231 ret = ((struct elf_sh64_link_hash_table *)
3232 bfd_alloc (abfd, sizeof (struct elf_sh64_link_hash_table)));
3233 if (ret == (struct elf_sh64_link_hash_table *) NULL)
3236 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
3237 sh64_elf64_link_hash_newfunc))
3239 bfd_release (abfd, ret);
3243 return &ret->root.root;
3247 movi_shori_putval (output_bfd, value, addr)
3249 unsigned long value;
3252 bfd_put_32 (output_bfd,
3253 bfd_get_32 (output_bfd, addr)
3254 | ((value >> 6) & 0x3fffc00),
3256 bfd_put_32 (output_bfd,
3257 bfd_get_32 (output_bfd, addr + 4)
3258 | ((value << 10) & 0x3fffc00),
3263 movi_3shori_putval (output_bfd, value, addr)
3268 bfd_put_32 (output_bfd,
3269 bfd_get_32 (output_bfd, addr)
3270 | ((value >> 38) & 0x3fffc00),
3272 bfd_put_32 (output_bfd,
3273 bfd_get_32 (output_bfd, addr + 4)
3274 | ((value >> 22) & 0x3fffc00),
3276 bfd_put_32 (output_bfd,
3277 bfd_get_32 (output_bfd, addr + 8)
3278 | ((value >> 6) & 0x3fffc00),
3280 bfd_put_32 (output_bfd,
3281 bfd_get_32 (output_bfd, addr + 12)
3282 | ((value << 10) & 0x3fffc00),
3286 /* Create dynamic sections when linking against a dynamic object. */
3289 sh64_elf64_create_dynamic_sections (abfd, info)
3291 struct bfd_link_info *info;
3293 flagword flags, pltflags;
3294 register asection *s;
3295 struct elf_backend_data *bed = get_elf_backend_data (abfd);
3298 switch (bed->s->arch_size)
3309 bfd_set_error (bfd_error_bad_value);
3313 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3314 .rel[a].bss sections. */
3316 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3317 | SEC_LINKER_CREATED);
3320 pltflags |= SEC_CODE;
3321 if (bed->plt_not_loaded)
3322 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3323 if (bed->plt_readonly)
3324 pltflags |= SEC_READONLY;
3326 s = bfd_make_section (abfd, ".plt");
3328 || ! bfd_set_section_flags (abfd, s, pltflags)
3329 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3332 if (bed->want_plt_sym)
3334 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3336 struct elf_link_hash_entry *h = NULL;
3337 if (! (_bfd_generic_link_add_one_symbol
3338 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3339 (bfd_vma) 0, (const char *) NULL, false,
3340 get_elf_backend_data (abfd)->collect,
3341 (struct bfd_link_hash_entry **) &h)))
3343 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
3344 h->type = STT_OBJECT;
3347 && ! _bfd_elf_link_record_dynamic_symbol (info, h))
3351 s = bfd_make_section (abfd,
3352 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
3354 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3355 || ! bfd_set_section_alignment (abfd, s, ptralign))
3358 if (! _bfd_elf_create_got_section (abfd, info))
3362 const char *secname;
3367 for (sec = abfd->sections; sec; sec = sec->next)
3369 secflags = bfd_get_section_flags (abfd, sec);
3370 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
3371 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
3373 secname = bfd_get_section_name (abfd, sec);
3374 relname = (char *) bfd_malloc (strlen (secname) + 6);
3375 strcpy (relname, ".rela");
3376 strcat (relname, secname);
3377 s = bfd_make_section (abfd, relname);
3379 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3380 || ! bfd_set_section_alignment (abfd, s, ptralign))
3385 if (bed->want_dynbss)
3387 /* The .dynbss section is a place to put symbols which are defined
3388 by dynamic objects, are referenced by regular objects, and are
3389 not functions. We must allocate space for them in the process
3390 image and use a R_*_COPY reloc to tell the dynamic linker to
3391 initialize them at run time. The linker script puts the .dynbss
3392 section into the .bss section of the final image. */
3393 s = bfd_make_section (abfd, ".dynbss");
3395 || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
3398 /* The .rel[a].bss section holds copy relocs. This section is not
3399 normally needed. We need to create it here, though, so that the
3400 linker will map it to an output section. We can't just create it
3401 only if we need it, because we will not know whether we need it
3402 until we have seen all the input files, and the first time the
3403 main linker code calls BFD after examining all the input files
3404 (size_dynamic_sections) the input sections have already been
3405 mapped to the output sections. If the section turns out not to
3406 be needed, we can discard it later. We will never need this
3407 section when generating a shared object, since they do not use
3411 s = bfd_make_section (abfd,
3412 (bed->default_use_rela_p
3413 ? ".rela.bss" : ".rel.bss"));
3415 || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
3416 || ! bfd_set_section_alignment (abfd, s, ptralign))
3424 /* Adjust a symbol defined by a dynamic object and referenced by a
3425 regular object. The current definition is in some section of the
3426 dynamic object, but we're not including those sections. We have to
3427 change the definition to something the rest of the link can
3431 sh64_elf64_adjust_dynamic_symbol (info, h)
3432 struct bfd_link_info *info;
3433 struct elf_link_hash_entry *h;
3437 unsigned int power_of_two;
3439 dynobj = elf_hash_table (info)->dynobj;
3441 /* Make sure we know what is going on here. */
3442 BFD_ASSERT (dynobj != NULL
3443 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
3444 || h->weakdef != NULL
3445 || ((h->elf_link_hash_flags
3446 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
3447 && (h->elf_link_hash_flags
3448 & ELF_LINK_HASH_REF_REGULAR) != 0
3449 && (h->elf_link_hash_flags
3450 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
3452 /* If this is a function, put it in the procedure linkage table. We
3453 will fill in the contents of the procedure linkage table later,
3454 when we know the address of the .got section. */
3455 if (h->type == STT_FUNC
3456 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
3459 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
3460 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)
3462 /* This case can occur if we saw a PLT reloc in an input
3463 file, but the symbol was never referred to by a dynamic
3464 object. In such a case, we don't actually need to build
3465 a procedure linkage table, and we can just do a REL64
3467 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
3471 /* Make sure this symbol is output as a dynamic symbol. */
3472 if (h->dynindx == -1)
3474 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
3478 s = bfd_get_section_by_name (dynobj, ".plt");
3479 BFD_ASSERT (s != NULL);
3481 /* If this is the first .plt entry, make room for the special
3483 if (s->_raw_size == 0)
3484 s->_raw_size += PLT_ENTRY_SIZE;
3486 /* If this symbol is not defined in a regular file, and we are
3487 not generating a shared library, then set the symbol to this
3488 location in the .plt. This is required to make function
3489 pointers compare as equal between the normal executable and
3490 the shared library. */
3492 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3494 h->root.u.def.section = s;
3495 h->root.u.def.value = s->_raw_size;
3498 h->plt.offset = s->_raw_size;
3500 /* Make room for this entry. */
3501 s->_raw_size += elf_sh64_sizeof_plt (info);
3503 /* We also need to make an entry in the .got.plt section, which
3504 will be placed in the .got section by the linker script. */
3506 s = bfd_get_section_by_name (dynobj, ".got.plt");
3507 BFD_ASSERT (s != NULL);
3510 /* We also need to make an entry in the .rela.plt section. */
3512 s = bfd_get_section_by_name (dynobj, ".rela.plt");
3513 BFD_ASSERT (s != NULL);
3514 s->_raw_size += sizeof (Elf64_External_Rela);
3519 /* If this is a weak symbol, and there is a real definition, the
3520 processor independent code will have arranged for us to see the
3521 real definition first, and we can just use the same value. */
3522 if (h->weakdef != NULL)
3524 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
3525 || h->weakdef->root.type == bfd_link_hash_defweak);
3526 h->root.u.def.section = h->weakdef->root.u.def.section;
3527 h->root.u.def.value = h->weakdef->root.u.def.value;
3531 /* This is a reference to a symbol defined by a dynamic object which
3532 is not a function. */
3534 /* If we are creating a shared library, we must presume that the
3535 only references to the symbol are via the global offset table.
3536 For such cases we need not do anything here; the relocations will
3537 be handled correctly by relocate_section. */
3541 /* If there are no references to this symbol that do not use the
3542 GOT, we don't need to generate a copy reloc. */
3543 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
3546 /* We must allocate the symbol in our .dynbss section, which will
3547 become part of the .bss section of the executable. There will be
3548 an entry for this symbol in the .dynsym section. The dynamic
3549 object will contain position independent code, so all references
3550 from the dynamic object to this symbol will go through the global
3551 offset table. The dynamic linker will use the .dynsym entry to
3552 determine the address it must put in the global offset table, so
3553 both the dynamic object and the regular object will refer to the
3554 same memory location for the variable. */
3556 s = bfd_get_section_by_name (dynobj, ".dynbss");
3557 BFD_ASSERT (s != NULL);
3559 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3560 copy the initial value out of the dynamic object and into the
3561 runtime process image. We need to remember the offset into the
3562 .rela.bss section we are going to use. */
3563 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3567 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
3568 BFD_ASSERT (srel != NULL);
3569 srel->_raw_size += sizeof (Elf64_External_Rela);
3570 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
3573 /* We need to figure out the alignment required for this symbol. I
3574 have no idea how ELF linkers handle this. */
3575 power_of_two = bfd_log2 (h->size);
3576 if (power_of_two > 3)
3579 /* Apply the required alignment. */
3580 s->_raw_size = BFD_ALIGN (s->_raw_size,
3581 (bfd_size_type) (1 << power_of_two));
3582 if (power_of_two > bfd_get_section_alignment (dynobj, s))
3584 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
3588 /* Define the symbol as being at this point in the section. */
3589 h->root.u.def.section = s;
3590 h->root.u.def.value = s->_raw_size;
3592 /* Increment the section size to make room for the symbol. */
3593 s->_raw_size += h->size;
3598 /* This function is called via sh_elf_link_hash_traverse if we are
3599 creating a shared object with -Bsymbolic. It discards the space
3600 allocated to copy PC relative relocs against symbols which are
3601 defined in regular objects. We allocated space for them in the
3602 check_relocs routine, but we won't fill them in in the
3603 relocate_section routine. */
3606 sh64_elf64_discard_copies (h, ignore)
3607 struct elf_sh64_link_hash_entry *h;
3608 PTR ignore ATTRIBUTE_UNUSED;
3610 struct elf_sh64_pcrel_relocs_copied *s;
3612 /* We only discard relocs for symbols defined in a regular object. */
3613 if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3616 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3617 s->section->_raw_size -= s->count * sizeof (Elf64_External_Rela);
3622 /* Set the sizes of the dynamic sections. */
3625 sh64_elf64_size_dynamic_sections (output_bfd, info)
3627 struct bfd_link_info *info;
3635 dynobj = elf_hash_table (info)->dynobj;
3636 BFD_ASSERT (dynobj != NULL);
3638 if (elf_hash_table (info)->dynamic_sections_created)
3640 /* Set the contents of the .interp section to the interpreter. */
3643 s = bfd_get_section_by_name (dynobj, ".interp");
3644 BFD_ASSERT (s != NULL);
3645 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
3646 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3651 /* We may have created entries in the .rela.got section.
3652 However, if we are not creating the dynamic sections, we will
3653 not actually use these entries. Reset the size of .rela.got,
3654 which will cause it to get stripped from the output file
3656 s = bfd_get_section_by_name (dynobj, ".rela.got");
3661 /* If this is a -Bsymbolic shared link, then we need to discard all
3662 PC relative relocs against symbols defined in a regular object.
3663 We allocated space for them in the check_relocs routine, but we
3664 will not fill them in in the relocate_section routine. */
3665 if (info->shared && info->symbolic)
3666 sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info),
3667 sh64_elf64_discard_copies,
3670 /* The check_relocs and adjust_dynamic_symbol entry points have
3671 determined the sizes of the various dynamic sections. Allocate
3676 for (s = dynobj->sections; s != NULL; s = s->next)
3681 if ((s->flags & SEC_LINKER_CREATED) == 0)
3684 /* It's OK to base decisions on the section name, because none
3685 of the dynobj section names depend upon the input files. */
3686 name = bfd_get_section_name (dynobj, s);
3690 if (strcmp (name, ".plt") == 0)
3692 if (s->_raw_size == 0)
3694 /* Strip this section if we don't need it; see the
3700 /* Remember whether there is a PLT. */
3704 else if (strncmp (name, ".rela", 5) == 0)
3706 if (s->_raw_size == 0)
3708 /* If we don't need this section, strip it from the
3709 output file. This is mostly to handle .rela.bss and
3710 .rela.plt. We must create both sections in
3711 create_dynamic_sections, because they must be created
3712 before the linker maps input sections to output
3713 sections. The linker does that before
3714 adjust_dynamic_symbol is called, and it is that
3715 function which decides whether anything needs to go
3716 into these sections. */
3723 /* Remember whether there are any reloc sections other
3725 if (strcmp (name, ".rela.plt") != 0)
3727 const char *outname;
3731 /* If this relocation section applies to a read only
3732 section, then we probably need a DT_TEXTREL
3733 entry. The entries in the .rela.plt section
3734 really apply to the .got section, which we
3735 created ourselves and so know is not readonly. */
3736 outname = bfd_get_section_name (output_bfd,
3738 target = bfd_get_section_by_name (output_bfd, outname + 5);
3740 && (target->flags & SEC_READONLY) != 0
3741 && (target->flags & SEC_ALLOC) != 0)
3745 /* We use the reloc_count field as a counter if we need
3746 to copy relocs into the output file. */
3750 else if (strncmp (name, ".got", 4) != 0)
3752 /* It's not one of our sections, so don't allocate space. */
3758 _bfd_strip_section_from_output (info, s);
3762 /* Allocate memory for the section contents. */
3763 s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size);
3764 if (s->contents == NULL && s->_raw_size != 0)
3768 if (elf_hash_table (info)->dynamic_sections_created)
3770 /* Add some entries to the .dynamic section. We fill in the
3771 values later, in sh64_elf64_finish_dynamic_sections, but we
3772 must add the entries now so that we get the correct size for
3773 the .dynamic section. The DT_DEBUG entry is filled in by the
3774 dynamic linker and used by the debugger. */
3777 if (! bfd_elf64_add_dynamic_entry (info, DT_DEBUG, 0))
3783 if (! bfd_elf64_add_dynamic_entry (info, DT_PLTGOT, 0)
3784 || ! bfd_elf64_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3785 || ! bfd_elf64_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3786 || ! bfd_elf64_add_dynamic_entry (info, DT_JMPREL, 0))
3792 if (! bfd_elf64_add_dynamic_entry (info, DT_RELA, 0)
3793 || ! bfd_elf64_add_dynamic_entry (info, DT_RELASZ, 0)
3794 || ! bfd_elf64_add_dynamic_entry (info, DT_RELAENT,
3795 sizeof (Elf64_External_Rela)))
3801 if (! bfd_elf64_add_dynamic_entry (info, DT_TEXTREL, 0))
3809 /* Finish up dynamic symbol handling. We set the contents of various
3810 dynamic sections here. */
3813 sh64_elf64_finish_dynamic_symbol (output_bfd, info, h, sym)
3815 struct bfd_link_info *info;
3816 struct elf_link_hash_entry *h;
3817 Elf_Internal_Sym *sym;
3821 dynobj = elf_hash_table (info)->dynobj;
3823 if (h->plt.offset != (bfd_vma) -1)
3831 Elf_Internal_Rela rel;
3833 /* This symbol has an entry in the procedure linkage table. Set
3836 BFD_ASSERT (h->dynindx != -1);
3838 splt = bfd_get_section_by_name (dynobj, ".plt");
3839 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
3840 srel = bfd_get_section_by_name (dynobj, ".rela.plt");
3841 BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3843 /* Get the index in the procedure linkage table which
3844 corresponds to this symbol. This is the index of this symbol
3845 in all the symbols for which we are making plt entries. The
3846 first entry in the procedure linkage table is reserved. */
3847 plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3849 /* Get the offset into the .got table of the entry that
3850 corresponds to this function. Each .got entry is 8 bytes.
3851 The first three are reserved. */
3852 got_offset = (plt_index + 3) * 8;
3854 got_offset -= GOT_BIAS;
3856 /* Fill in the entry in the procedure linkage table. */
3859 if (elf_sh64_plt_entry == NULL)
3861 elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3862 elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3864 memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3865 elf_sh64_sizeof_plt (info));
3866 movi_3shori_putval (output_bfd,
3867 (sgot->output_section->vma
3868 + sgot->output_offset
3870 (splt->contents + h->plt.offset
3871 + elf_sh64_plt_symbol_offset (info)));
3873 movi_shori_putval (output_bfd,
3874 (splt->output_section->vma + splt->output_offset),
3875 (splt->contents + h->plt.offset
3876 + elf_sh64_plt_plt0_offset (info)));
3880 if (elf_sh64_pic_plt_entry == NULL)
3882 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3883 elf_sh64_pic_plt_entry_be :
3884 elf_sh64_pic_plt_entry_le);
3886 memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3887 elf_sh64_sizeof_plt (info));
3888 movi_shori_putval (output_bfd, got_offset,
3889 (splt->contents + h->plt.offset
3890 + elf_sh64_plt_symbol_offset (info)));
3893 got_offset += GOT_BIAS;
3895 movi_shori_putval (output_bfd,
3896 plt_index * sizeof (Elf64_External_Rela),
3897 (splt->contents + h->plt.offset
3898 + elf_sh64_plt_reloc_offset (info)));
3900 /* Fill in the entry in the global offset table. */
3901 bfd_put_64 (output_bfd,
3902 (splt->output_section->vma
3903 + splt->output_offset
3905 + elf_sh64_plt_temp_offset (info)),
3906 sgot->contents + got_offset);
3908 /* Fill in the entry in the .rela.plt section. */
3909 rel.r_offset = (sgot->output_section->vma
3910 + sgot->output_offset
3912 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3914 rel.r_addend = GOT_BIAS;
3915 bfd_elf64_swap_reloca_out (output_bfd, &rel,
3916 ((Elf64_External_Rela *) srel->contents
3919 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
3921 /* Mark the symbol as undefined, rather than as defined in
3922 the .plt section. Leave the value alone. */
3923 sym->st_shndx = SHN_UNDEF;
3927 if (h->got.offset != (bfd_vma) -1)
3931 Elf_Internal_Rela rel;
3933 /* This symbol has an entry in the global offset table. Set it
3936 sgot = bfd_get_section_by_name (dynobj, ".got");
3937 srel = bfd_get_section_by_name (dynobj, ".rela.got");
3938 BFD_ASSERT (sgot != NULL && srel != NULL);
3940 rel.r_offset = (sgot->output_section->vma
3941 + sgot->output_offset
3942 + (h->got.offset &~ 1));
3944 /* If this is a -Bsymbolic link, and the symbol is defined
3945 locally, we just want to emit a RELATIVE reloc. Likewise if
3946 the symbol was forced to be local because of a version file.
3947 The entry in the global offset table will already have been
3948 initialized in the relocate_section function. */
3950 && (info->symbolic || h->dynindx == -1)
3951 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
3953 rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3954 rel.r_addend = (h->root.u.def.value
3955 + h->root.u.def.section->output_section->vma
3956 + h->root.u.def.section->output_offset);
3960 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3961 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3965 bfd_elf64_swap_reloca_out (output_bfd, &rel,
3966 ((Elf64_External_Rela *) srel->contents
3967 + srel->reloc_count));
3968 ++srel->reloc_count;
3971 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
3974 Elf_Internal_Rela rel;
3976 /* This symbol needs a copy reloc. Set it up. */
3978 BFD_ASSERT (h->dynindx != -1
3979 && (h->root.type == bfd_link_hash_defined
3980 || h->root.type == bfd_link_hash_defweak));
3982 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3984 BFD_ASSERT (s != NULL);
3986 rel.r_offset = (h->root.u.def.value
3987 + h->root.u.def.section->output_section->vma
3988 + h->root.u.def.section->output_offset);
3989 rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3991 bfd_elf64_swap_reloca_out (output_bfd, &rel,
3992 ((Elf64_External_Rela *) s->contents
3997 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3998 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3999 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
4000 sym->st_shndx = SHN_ABS;
4005 /* Finish up the dynamic sections. */
4008 sh64_elf64_finish_dynamic_sections (output_bfd, info)
4010 struct bfd_link_info *info;
4016 dynobj = elf_hash_table (info)->dynobj;
4018 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
4019 BFD_ASSERT (sgot != NULL);
4020 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4022 if (elf_hash_table (info)->dynamic_sections_created)
4025 Elf64_External_Dyn *dyncon, *dynconend;
4027 BFD_ASSERT (sdyn != NULL);
4029 dyncon = (Elf64_External_Dyn *) sdyn->contents;
4030 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
4031 for (; dyncon < dynconend; dyncon++)
4033 Elf_Internal_Dyn dyn;
4037 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
4051 s = bfd_get_section_by_name (output_bfd, name);
4052 BFD_ASSERT (s != NULL);
4053 dyn.d_un.d_ptr = s->vma;
4054 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4058 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
4059 BFD_ASSERT (s != NULL);
4060 if (s->_cooked_size != 0)
4061 dyn.d_un.d_val = s->_cooked_size;
4063 dyn.d_un.d_val = s->_raw_size;
4064 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4068 /* My reading of the SVR4 ABI indicates that the
4069 procedure linkage table relocs (DT_JMPREL) should be
4070 included in the overall relocs (DT_RELA). This is
4071 what Solaris does. However, UnixWare can not handle
4072 that case. Therefore, we override the DT_RELASZ entry
4073 here to make it not include the JMPREL relocs. Since
4074 the linker script arranges for .rela.plt to follow all
4075 other relocation sections, we don't have to worry
4076 about changing the DT_RELA entry. */
4077 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
4080 if (s->_cooked_size != 0)
4081 dyn.d_un.d_val -= s->_cooked_size;
4083 dyn.d_un.d_val -= s->_raw_size;
4085 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
4090 /* Fill in the first entry in the procedure linkage table. */
4091 splt = bfd_get_section_by_name (dynobj, ".plt");
4092 if (splt && splt->_raw_size > 0)
4096 if (elf_sh64_pic_plt_entry == NULL)
4098 elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
4099 elf_sh64_pic_plt_entry_be :
4100 elf_sh64_pic_plt_entry_le);
4102 memcpy (splt->contents, elf_sh64_pic_plt_entry,
4103 elf_sh64_sizeof_plt (info));
4107 if (elf_sh64_plt0_entry == NULL)
4109 elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
4110 elf_sh64_plt0_entry_be :
4111 elf_sh64_plt0_entry_le);
4113 memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
4114 movi_3shori_putval (output_bfd,
4115 sgot->output_section->vma
4116 + sgot->output_offset,
4118 + elf_sh64_plt0_gotplt_offset (info));
4121 /* UnixWare sets the entsize of .plt to 8, although that doesn't
4122 really seem like the right value. */
4123 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
4127 /* Fill in the first three entries in the global offset table. */
4128 if (sgot->_raw_size > 0)
4131 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
4133 bfd_put_64 (output_bfd,
4134 sdyn->output_section->vma + sdyn->output_offset,
4136 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
4137 bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
4140 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
4147 #define TARGET_BIG_SYM bfd_elf64_sh64_vec
4148 #define TARGET_BIG_NAME "elf64-sh64"
4149 #define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec
4150 #define TARGET_LITTLE_NAME "elf64-sh64l"
4151 #define ELF_ARCH bfd_arch_sh
4152 #define ELF_MACHINE_CODE EM_SH
4153 #define ELF_MAXPAGESIZE 128
4155 #define elf_symbol_leading_char '_'
4156 #endif /* ELF_ARCH */
4158 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
4159 #define elf_info_to_howto sh_elf64_info_to_howto
4161 /* Note: there's no relaxation at present. */
4163 #define elf_backend_relocate_section sh_elf64_relocate_section
4164 #define bfd_elf64_bfd_get_relocated_section_contents \
4165 sh_elf64_get_relocated_section_contents
4166 #define elf_backend_object_p sh_elf64_set_mach_from_flags
4167 #define bfd_elf64_bfd_set_private_flags \
4168 sh_elf64_set_private_flags
4169 #define bfd_elf64_bfd_copy_private_bfd_data \
4170 sh_elf64_copy_private_data
4171 #define bfd_elf64_bfd_merge_private_bfd_data \
4172 sh_elf64_merge_private_data
4173 #define elf_backend_fake_sections sh64_elf64_fake_sections
4175 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
4176 #define elf_backend_gc_sweep_hook sh_elf64_gc_sweep_hook
4177 #define elf_backend_check_relocs sh_elf64_check_relocs
4179 #define elf_backend_can_gc_sections 1
4181 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
4183 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
4185 #define elf_backend_link_output_symbol_hook \
4186 sh64_elf64_link_output_symbol_hook
4188 #define elf_backend_final_write_processing \
4189 sh64_elf64_final_write_processing
4191 #define elf_backend_create_dynamic_sections \
4192 sh64_elf64_create_dynamic_sections
4193 #define bfd_elf64_bfd_link_hash_table_create \
4194 sh64_elf64_link_hash_table_create
4195 #define elf_backend_adjust_dynamic_symbol \
4196 sh64_elf64_adjust_dynamic_symbol
4197 #define elf_backend_size_dynamic_sections \
4198 sh64_elf64_size_dynamic_sections
4199 #define elf_backend_finish_dynamic_symbol \
4200 sh64_elf64_finish_dynamic_symbol
4201 #define elf_backend_finish_dynamic_sections \
4202 sh64_elf64_finish_dynamic_sections
4204 #define elf_backend_want_got_plt 1
4205 #define elf_backend_plt_readonly 1
4206 #define elf_backend_want_plt_sym 0
4207 #define elf_backend_got_header_size 24
4208 #define elf_backend_plt_header_size PLT_ENTRY_SIZE
4210 #include "elf64-target.h"