1 /* SuperH SH64-specific support for 64-bit ELF
2 Copyright 2000, 2001, 2002, 2003, 2004, 2005
3 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
30 /* Add a suffix for datalabel indirection symbols. It must not match any
31 other symbols; user symbols with or without version or other
32 decoration. It must only be used internally and not emitted by any
34 #define DATALABEL_SUFFIX " DL"
36 #define GOT_BIAS (-((long)-32768))
38 #define PLT_ENTRY_SIZE 64
40 /* Return size of a PLT entry. */
41 #define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE
43 /* Return offset of the PLT0 address in an absolute PLT entry. */
44 #define elf_sh64_plt_plt0_offset(info) 32
46 /* Return offset of the linker in PLT0 entry. */
47 #define elf_sh64_plt0_gotplt_offset(info) 0
49 /* Return offset of the trampoline in PLT entry */
50 #define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */
52 /* Return offset of the symbol in PLT entry. */
53 #define elf_sh64_plt_symbol_offset(info) 0
55 /* Return offset of the relocation in PLT entry. */
56 #define elf_sh64_plt_reloc_offset(info) (info->shared ? 52 : 44)
58 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
60 /* The sh linker needs to keep track of the number of relocs that it
61 decides to copy in check_relocs for each symbol. This is so that
62 it can discard PC relative relocs if it doesn't need them when
63 linking with -Bsymbolic. We store the information in a field
64 extending the regular ELF linker hash table. */
66 /* This structure keeps track of the number of PC relative relocs we
67 have copied for a given symbol. */
69 struct elf_sh64_pcrel_relocs_copied
72 struct elf_sh64_pcrel_relocs_copied
*next
;
73 /* A section in dynobj. */
75 /* Number of relocs copied in this section. */
79 /* sh ELF linker hash entry. */
81 struct elf_sh64_link_hash_entry
83 struct elf_link_hash_entry root
;
85 bfd_vma datalabel_got_offset
;
87 /* Number of PC relative relocs copied for this symbol. */
88 struct elf_sh64_pcrel_relocs_copied
*pcrel_relocs_copied
;
91 /* sh ELF linker hash table. */
93 struct elf_sh64_link_hash_table
95 struct elf_link_hash_table root
;
98 /* Traverse an sh ELF linker hash table. */
100 #define sh64_elf64_link_hash_traverse(table, func, info) \
101 (elf_link_hash_traverse \
103 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
106 /* Get the sh ELF linker hash table from a link_info structure. */
108 #define sh64_elf64_hash_table(p) \
109 ((struct elf_sh64_link_hash_table *) ((p)->hash))
111 static bfd_reloc_status_type sh_elf64_ignore_reloc
112 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
113 static bfd_reloc_status_type sh_elf64_reloc
114 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
116 static reloc_howto_type sh_elf64_howto_table
[] = {
118 HOWTO (R_SH_NONE
, /* type */
120 0, /* size (0 = byte, 1 = short, 2 = long) */
122 FALSE
, /* pc_relative */
124 complain_overflow_dont
, /* complain_on_overflow */
125 sh_elf64_ignore_reloc
, /* special_function */
126 "R_SH_NONE", /* name */
127 FALSE
, /* partial_inplace */
130 FALSE
), /* pcrel_offset */
132 /* 32 bit absolute relocation. Setting partial_inplace to TRUE and
133 src_mask to a non-zero value is similar to the COFF toolchain. */
134 HOWTO (R_SH_DIR32
, /* type */
136 2, /* size (0 = byte, 1 = short, 2 = long) */
138 FALSE
, /* pc_relative */
140 complain_overflow_bitfield
, /* complain_on_overflow */
141 sh_elf64_reloc
, /* special_function */
142 "R_SH_DIR32", /* name */
143 TRUE
, /* partial_inplace */
144 0xffffffff, /* src_mask */
145 0xffffffff, /* dst_mask */
146 FALSE
), /* pcrel_offset */
148 /* 32 bit PC relative relocation. */
149 HOWTO (R_SH_REL32
, /* type */
151 2, /* size (0 = byte, 1 = short, 2 = long) */
153 TRUE
, /* pc_relative */
155 complain_overflow_signed
, /* complain_on_overflow */
156 sh_elf64_ignore_reloc
, /* special_function */
157 "R_SH_REL32", /* name */
158 FALSE
, /* partial_inplace */
160 0xffffffff, /* dst_mask */
161 TRUE
), /* pcrel_offset */
163 /* For 32-bit sh, this is R_SH_DIR8WPN. */
166 /* For 32-bit sh, this is R_SH_IND12W. */
169 /* For 32-bit sh, this is R_SH_DIR8WPL. */
172 /* For 32-bit sh, this is R_SH_DIR8WPZ. */
175 /* For 32-bit sh, this is R_SH_DIR8BP. */
178 /* For 32-bit sh, this is R_SH_DIR8W. */
181 /* For 32-bit sh, this is R_SH_DIR8L. */
200 /* The remaining relocs are a GNU extension used for relaxing. The
201 final pass of the linker never needs to do anything with any of
202 these relocs. Any required operations are handled by the
205 /* A 16 bit switch table entry. This is generated for an expression
206 such as ``.word L1 - L2''. The offset holds the difference
207 between the reloc address and L2. */
208 HOWTO (R_SH_SWITCH16
, /* type */
210 1, /* size (0 = byte, 1 = short, 2 = long) */
212 FALSE
, /* pc_relative */
214 complain_overflow_unsigned
, /* complain_on_overflow */
215 sh_elf64_ignore_reloc
, /* special_function */
216 "R_SH_SWITCH16", /* name */
217 FALSE
, /* partial_inplace */
220 TRUE
), /* pcrel_offset */
222 /* A 32 bit switch table entry. This is generated for an expression
223 such as ``.long L1 - L2''. The offset holds the difference
224 between the reloc address and L2. */
225 HOWTO (R_SH_SWITCH32
, /* type */
227 2, /* size (0 = byte, 1 = short, 2 = long) */
229 FALSE
, /* pc_relative */
231 complain_overflow_unsigned
, /* complain_on_overflow */
232 sh_elf64_ignore_reloc
, /* special_function */
233 "R_SH_SWITCH32", /* name */
234 FALSE
, /* partial_inplace */
237 TRUE
), /* pcrel_offset */
239 /* For 32-bit sh, this is R_SH_USES. */
242 /* For 32-bit sh, this is R_SH_COUNT. */
245 /* For 32-bit sh, this is R_SH_ALIGN. FIXME: For linker relaxation,
246 this might be emitted. When linker relaxation is implemented, we
247 might want to use it. */
250 /* For 32-bit sh, this is R_SH_CODE. FIXME: For linker relaxation,
251 this might be emitted. When linker relaxation is implemented, we
252 might want to use it. */
255 /* For 32-bit sh, this is R_SH_DATA. FIXME: For linker relaxation,
256 this might be emitted. When linker relaxation is implemented, we
257 might want to use it. */
260 /* For 32-bit sh, this is R_SH_LABEL. FIXME: For linker relaxation,
261 this might be emitted. When linker relaxation is implemented, we
262 might want to use it. */
265 /* An 8 bit switch table entry. This is generated for an expression
266 such as ``.word L1 - L2''. The offset holds the difference
267 between the reloc address and L2. */
268 HOWTO (R_SH_SWITCH8
, /* type */
270 0, /* size (0 = byte, 1 = short, 2 = long) */
272 FALSE
, /* pc_relative */
274 complain_overflow_unsigned
, /* complain_on_overflow */
275 sh_elf64_ignore_reloc
, /* special_function */
276 "R_SH_SWITCH8", /* name */
277 FALSE
, /* partial_inplace */
280 TRUE
), /* pcrel_offset */
282 /* GNU extension to record C++ vtable hierarchy */
283 HOWTO (R_SH_GNU_VTINHERIT
, /* type */
285 2, /* size (0 = byte, 1 = short, 2 = long) */
287 FALSE
, /* pc_relative */
289 complain_overflow_dont
, /* complain_on_overflow */
290 NULL
, /* special_function */
291 "R_SH_GNU_VTINHERIT", /* name */
292 FALSE
, /* partial_inplace */
295 FALSE
), /* pcrel_offset */
297 /* GNU extension to record C++ vtable member usage */
298 HOWTO (R_SH_GNU_VTENTRY
, /* type */
300 2, /* size (0 = byte, 1 = short, 2 = long) */
302 FALSE
, /* pc_relative */
304 complain_overflow_dont
, /* complain_on_overflow */
305 _bfd_elf_rel_vtable_reloc_fn
, /* special_function */
306 "R_SH_GNU_VTENTRY", /* name */
307 FALSE
, /* partial_inplace */
310 FALSE
), /* pcrel_offset */
312 /* For 32-bit sh, this is R_SH_LOOP_START. */
315 /* For 32-bit sh, this is R_SH_LOOP_END. */
326 /* Used in SHLLI.L and SHLRI.L. */
327 HOWTO (R_SH_DIR5U
, /* type */
329 2, /* size (0 = byte, 1 = short, 2 = long) */
331 FALSE
, /* pc_relative */
333 complain_overflow_unsigned
, /* complain_on_overflow */
334 bfd_elf_generic_reloc
, /* special_function */
335 "R_SH_DIR5U", /* name */
336 FALSE
, /* partial_inplace */
338 0xfc00, /* dst_mask */
339 FALSE
), /* pcrel_offset */
341 /* Used in SHARI, SHLLI et al. */
342 HOWTO (R_SH_DIR6U
, /* type */
344 2, /* size (0 = byte, 1 = short, 2 = long) */
346 FALSE
, /* pc_relative */
348 complain_overflow_unsigned
, /* complain_on_overflow */
349 bfd_elf_generic_reloc
, /* special_function */
350 "R_SH_DIR6U", /* name */
351 FALSE
, /* partial_inplace */
353 0xfc00, /* dst_mask */
354 FALSE
), /* pcrel_offset */
356 /* Used in BxxI, LDHI.L et al. */
357 HOWTO (R_SH_DIR6S
, /* type */
359 2, /* size (0 = byte, 1 = short, 2 = long) */
361 FALSE
, /* pc_relative */
363 complain_overflow_signed
, /* complain_on_overflow */
364 bfd_elf_generic_reloc
, /* special_function */
365 "R_SH_DIR6S", /* name */
366 FALSE
, /* partial_inplace */
368 0xfc00, /* dst_mask */
369 FALSE
), /* pcrel_offset */
371 /* Used in ADDI, ANDI et al. */
372 HOWTO (R_SH_DIR10S
, /* type */
374 2, /* size (0 = byte, 1 = short, 2 = long) */
376 FALSE
, /* pc_relative */
378 complain_overflow_signed
, /* complain_on_overflow */
379 bfd_elf_generic_reloc
, /* special_function */
380 "R_SH_DIR10S", /* name */
381 FALSE
, /* partial_inplace */
383 0xffc00, /* dst_mask */
384 FALSE
), /* pcrel_offset */
386 /* Used in LD.UW, ST.W et al. */
387 HOWTO (R_SH_DIR10SW
, /* type */
389 2, /* size (0 = byte, 1 = short, 2 = long) */
391 FALSE
, /* pc_relative */
393 complain_overflow_signed
, /* complain_on_overflow */
394 bfd_elf_generic_reloc
, /* special_function */
395 "R_SH_DIR10SW", /* name */
396 FALSE
, /* partial_inplace */
398 0xffc00, /* dst_mask */
399 FALSE
), /* pcrel_offset */
401 /* Used in LD.L, FLD.S et al. */
402 HOWTO (R_SH_DIR10SL
, /* type */
404 2, /* size (0 = byte, 1 = short, 2 = long) */
406 FALSE
, /* pc_relative */
408 complain_overflow_signed
, /* complain_on_overflow */
409 bfd_elf_generic_reloc
, /* special_function */
410 "R_SH_DIR10SL", /* name */
411 FALSE
, /* partial_inplace */
413 0xffc00, /* dst_mask */
414 FALSE
), /* pcrel_offset */
416 /* Used in FLD.D, FST.P et al. */
417 HOWTO (R_SH_DIR10SQ
, /* type */
419 2, /* size (0 = byte, 1 = short, 2 = long) */
421 FALSE
, /* pc_relative */
423 complain_overflow_signed
, /* complain_on_overflow */
424 bfd_elf_generic_reloc
, /* special_function */
425 "R_SH_DIR10SQ", /* name */
426 FALSE
, /* partial_inplace */
428 0xffc00, /* dst_mask */
429 FALSE
), /* pcrel_offset */
540 /* Relocs for dynamic linking for 32-bit SH would follow. We don't have
541 any dynamic linking support for 64-bit SH at present. */
553 /* Back to SH5 relocations. */
554 /* Used in MOVI and SHORI (x & 65536). */
555 HOWTO (R_SH_GOT_LOW16
, /* type */
557 2, /* size (0 = byte, 1 = short, 2 = long) */
559 FALSE
, /* pc_relative */
561 complain_overflow_dont
, /* complain_on_overflow */
562 bfd_elf_generic_reloc
, /* special_function */
563 "R_SH_GOT_LOW16", /* name */
564 FALSE
, /* partial_inplace */
566 0x3fffc00, /* dst_mask */
567 FALSE
), /* pcrel_offset */
569 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
570 HOWTO (R_SH_GOT_MEDLOW16
, /* type */
572 2, /* size (0 = byte, 1 = short, 2 = long) */
574 FALSE
, /* pc_relative */
576 complain_overflow_dont
, /* complain_on_overflow */
577 bfd_elf_generic_reloc
, /* special_function */
578 "R_SH_GOT_MEDLOW16", /* name */
579 FALSE
, /* partial_inplace */
581 0x3fffc00, /* dst_mask */
582 FALSE
), /* pcrel_offset */
584 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
585 HOWTO (R_SH_GOT_MEDHI16
, /* type */
587 2, /* size (0 = byte, 1 = short, 2 = long) */
589 FALSE
, /* pc_relative */
591 complain_overflow_dont
, /* complain_on_overflow */
592 bfd_elf_generic_reloc
, /* special_function */
593 "R_SH_GOT_MEDHI16", /* name */
594 FALSE
, /* partial_inplace */
596 0x3fffc00, /* dst_mask */
597 FALSE
), /* pcrel_offset */
599 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
600 HOWTO (R_SH_GOT_HI16
, /* type */
602 2, /* size (0 = byte, 1 = short, 2 = long) */
604 FALSE
, /* pc_relative */
606 complain_overflow_dont
, /* complain_on_overflow */
607 bfd_elf_generic_reloc
, /* special_function */
608 "R_SH_GOT_HI16", /* name */
609 FALSE
, /* partial_inplace */
611 0x3fffc00, /* dst_mask */
612 FALSE
), /* pcrel_offset */
614 /* Used in MOVI and SHORI (x & 65536). */
615 HOWTO (R_SH_GOTPLT_LOW16
, /* type */
617 2, /* size (0 = byte, 1 = short, 2 = long) */
619 FALSE
, /* pc_relative */
621 complain_overflow_dont
, /* complain_on_overflow */
622 bfd_elf_generic_reloc
, /* special_function */
623 "R_SH_GOTPLT_LOW16", /* name */
624 FALSE
, /* partial_inplace */
626 0x3fffc00, /* dst_mask */
627 FALSE
), /* pcrel_offset */
629 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
630 HOWTO (R_SH_GOTPLT_MEDLOW16
, /* type */
632 2, /* size (0 = byte, 1 = short, 2 = long) */
634 FALSE
, /* pc_relative */
636 complain_overflow_dont
, /* complain_on_overflow */
637 bfd_elf_generic_reloc
, /* special_function */
638 "R_SH_GOTPLT_MEDLOW16", /* name */
639 FALSE
, /* partial_inplace */
641 0x3fffc00, /* dst_mask */
642 FALSE
), /* pcrel_offset */
644 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
645 HOWTO (R_SH_GOTPLT_MEDHI16
, /* type */
647 2, /* size (0 = byte, 1 = short, 2 = long) */
649 FALSE
, /* pc_relative */
651 complain_overflow_dont
, /* complain_on_overflow */
652 bfd_elf_generic_reloc
, /* special_function */
653 "R_SH_GOTPLT_MEDHI16", /* name */
654 FALSE
, /* partial_inplace */
656 0x3fffc00, /* dst_mask */
657 FALSE
), /* pcrel_offset */
659 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
660 HOWTO (R_SH_GOTPLT_HI16
, /* type */
662 2, /* size (0 = byte, 1 = short, 2 = long) */
664 FALSE
, /* pc_relative */
666 complain_overflow_dont
, /* complain_on_overflow */
667 bfd_elf_generic_reloc
, /* special_function */
668 "R_SH_GOTPLT_HI16", /* name */
669 FALSE
, /* partial_inplace */
671 0x3fffc00, /* dst_mask */
672 FALSE
), /* pcrel_offset */
674 /* Used in MOVI and SHORI (x & 65536). */
675 HOWTO (R_SH_PLT_LOW16
, /* type */
677 2, /* size (0 = byte, 1 = short, 2 = long) */
679 TRUE
, /* pc_relative */
681 complain_overflow_dont
, /* complain_on_overflow */
682 bfd_elf_generic_reloc
, /* special_function */
683 "R_SH_PLT_LOW16", /* name */
684 FALSE
, /* partial_inplace */
686 0x3fffc00, /* dst_mask */
687 TRUE
), /* pcrel_offset */
689 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
690 HOWTO (R_SH_PLT_MEDLOW16
, /* type */
692 2, /* size (0 = byte, 1 = short, 2 = long) */
694 TRUE
, /* pc_relative */
696 complain_overflow_dont
, /* complain_on_overflow */
697 bfd_elf_generic_reloc
, /* special_function */
698 "R_SH_PLT_MEDLOW16", /* name */
699 FALSE
, /* partial_inplace */
701 0x3fffc00, /* dst_mask */
702 TRUE
), /* pcrel_offset */
704 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
705 HOWTO (R_SH_PLT_MEDHI16
, /* type */
707 2, /* size (0 = byte, 1 = short, 2 = long) */
709 TRUE
, /* pc_relative */
711 complain_overflow_dont
, /* complain_on_overflow */
712 bfd_elf_generic_reloc
, /* special_function */
713 "R_SH_PLT_MEDHI16", /* name */
714 FALSE
, /* partial_inplace */
716 0x3fffc00, /* dst_mask */
717 TRUE
), /* pcrel_offset */
719 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
720 HOWTO (R_SH_PLT_HI16
, /* type */
722 2, /* size (0 = byte, 1 = short, 2 = long) */
724 TRUE
, /* pc_relative */
726 complain_overflow_dont
, /* complain_on_overflow */
727 bfd_elf_generic_reloc
, /* special_function */
728 "R_SH_PLT_HI16", /* name */
729 FALSE
, /* partial_inplace */
731 0x3fffc00, /* dst_mask */
732 TRUE
), /* pcrel_offset */
734 /* Used in MOVI and SHORI (x & 65536). */
735 HOWTO (R_SH_GOTOFF_LOW16
, /* type */
737 2, /* size (0 = byte, 1 = short, 2 = long) */
739 FALSE
, /* pc_relative */
741 complain_overflow_dont
, /* complain_on_overflow */
742 bfd_elf_generic_reloc
, /* special_function */
743 "R_SH_GOTOFF_LOW16", /* name */
744 FALSE
, /* partial_inplace */
746 0x3fffc00, /* dst_mask */
747 FALSE
), /* pcrel_offset */
749 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
750 HOWTO (R_SH_GOTOFF_MEDLOW16
, /* type */
752 2, /* size (0 = byte, 1 = short, 2 = long) */
754 FALSE
, /* pc_relative */
756 complain_overflow_dont
, /* complain_on_overflow */
757 bfd_elf_generic_reloc
, /* special_function */
758 "R_SH_GOTOFF_MEDLOW16", /* name */
759 FALSE
, /* partial_inplace */
761 0x3fffc00, /* dst_mask */
762 FALSE
), /* pcrel_offset */
764 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
765 HOWTO (R_SH_GOTOFF_MEDHI16
, /* type */
767 2, /* size (0 = byte, 1 = short, 2 = long) */
769 FALSE
, /* pc_relative */
771 complain_overflow_dont
, /* complain_on_overflow */
772 bfd_elf_generic_reloc
, /* special_function */
773 "R_SH_GOTOFF_MEDHI16", /* name */
774 FALSE
, /* partial_inplace */
776 0x3fffc00, /* dst_mask */
777 FALSE
), /* pcrel_offset */
779 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
780 HOWTO (R_SH_GOTOFF_HI16
, /* type */
782 2, /* size (0 = byte, 1 = short, 2 = long) */
784 FALSE
, /* pc_relative */
786 complain_overflow_dont
, /* complain_on_overflow */
787 bfd_elf_generic_reloc
, /* special_function */
788 "R_SH_GOTOFF_HI16", /* name */
789 FALSE
, /* partial_inplace */
791 0x3fffc00, /* dst_mask */
792 FALSE
), /* pcrel_offset */
794 /* Used in MOVI and SHORI (x & 65536). */
795 HOWTO (R_SH_GOTPC_LOW16
, /* type */
797 2, /* size (0 = byte, 1 = short, 2 = long) */
799 TRUE
, /* pc_relative */
801 complain_overflow_dont
, /* complain_on_overflow */
802 bfd_elf_generic_reloc
, /* special_function */
803 "R_SH_GOTPC_LOW16", /* name */
804 FALSE
, /* partial_inplace */
806 0x3fffc00, /* dst_mask */
807 TRUE
), /* pcrel_offset */
809 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
810 HOWTO (R_SH_GOTPC_MEDLOW16
, /* type */
812 2, /* size (0 = byte, 1 = short, 2 = long) */
814 TRUE
, /* pc_relative */
816 complain_overflow_dont
, /* complain_on_overflow */
817 bfd_elf_generic_reloc
, /* special_function */
818 "R_SH_GOTPC_MEDLOW16", /* name */
819 FALSE
, /* partial_inplace */
821 0x3fffc00, /* dst_mask */
822 TRUE
), /* pcrel_offset */
824 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
825 HOWTO (R_SH_GOTPC_MEDHI16
, /* type */
827 2, /* size (0 = byte, 1 = short, 2 = long) */
829 TRUE
, /* pc_relative */
831 complain_overflow_dont
, /* complain_on_overflow */
832 bfd_elf_generic_reloc
, /* special_function */
833 "R_SH_GOTPC_MEDHI16", /* name */
834 FALSE
, /* partial_inplace */
836 0x3fffc00, /* dst_mask */
837 TRUE
), /* pcrel_offset */
839 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
840 HOWTO (R_SH_GOTPC_HI16
, /* type */
842 2, /* size (0 = byte, 1 = short, 2 = long) */
844 TRUE
, /* pc_relative */
846 complain_overflow_dont
, /* complain_on_overflow */
847 bfd_elf_generic_reloc
, /* special_function */
848 "R_SH_GOTPC_HI16", /* name */
849 FALSE
, /* partial_inplace */
851 0x3fffc00, /* dst_mask */
852 TRUE
), /* pcrel_offset */
854 /* Used in LD.L, FLD.S et al. */
855 HOWTO (R_SH_GOT10BY4
, /* type */
857 2, /* size (0 = byte, 1 = short, 2 = long) */
859 FALSE
, /* pc_relative */
861 complain_overflow_signed
, /* complain_on_overflow */
862 bfd_elf_generic_reloc
, /* special_function */
863 "R_SH_GOT10BY4", /* name */
864 FALSE
, /* partial_inplace */
866 0xffc00, /* dst_mask */
867 FALSE
), /* pcrel_offset */
869 /* Used in LD.L, FLD.S et al. */
870 HOWTO (R_SH_GOTPLT10BY4
, /* type */
872 2, /* size (0 = byte, 1 = short, 2 = long) */
874 FALSE
, /* pc_relative */
876 complain_overflow_signed
, /* complain_on_overflow */
877 bfd_elf_generic_reloc
, /* special_function */
878 "R_SH_GOTPLT10BY4", /* name */
879 FALSE
, /* partial_inplace */
881 0xffc00, /* dst_mask */
882 FALSE
), /* pcrel_offset */
884 /* Used in FLD.D, FST.P et al. */
885 HOWTO (R_SH_GOT10BY8
, /* type */
887 2, /* size (0 = byte, 1 = short, 2 = long) */
889 FALSE
, /* pc_relative */
891 complain_overflow_signed
, /* complain_on_overflow */
892 bfd_elf_generic_reloc
, /* special_function */
893 "R_SH_GOT10BY8", /* name */
894 FALSE
, /* partial_inplace */
896 0xffc00, /* dst_mask */
897 FALSE
), /* pcrel_offset */
899 /* Used in FLD.D, FST.P et al. */
900 HOWTO (R_SH_GOTPLT10BY8
, /* type */
902 2, /* size (0 = byte, 1 = short, 2 = long) */
904 FALSE
, /* pc_relative */
906 complain_overflow_signed
, /* complain_on_overflow */
907 bfd_elf_generic_reloc
, /* special_function */
908 "R_SH_GOTPLT10BY8", /* name */
909 FALSE
, /* partial_inplace */
911 0xffc00, /* dst_mask */
912 FALSE
), /* pcrel_offset */
914 HOWTO (R_SH_COPY64
, /* type */
916 4, /* size (0 = byte, 1 = short, 2 = long) */
918 FALSE
, /* pc_relative */
920 complain_overflow_dont
, /* complain_on_overflow */
921 bfd_elf_generic_reloc
, /* special_function */
922 "R_SH_COPY64", /* name */
923 FALSE
, /* partial_inplace */
925 ((bfd_vma
) 0) - 1, /* dst_mask */
926 FALSE
), /* pcrel_offset */
928 HOWTO (R_SH_GLOB_DAT64
, /* type */
930 4, /* size (0 = byte, 1 = short, 2 = long) */
932 FALSE
, /* pc_relative */
934 complain_overflow_dont
, /* complain_on_overflow */
935 bfd_elf_generic_reloc
, /* special_function */
936 "R_SH_GLOB_DAT64", /* name */
937 FALSE
, /* partial_inplace */
939 ((bfd_vma
) 0) - 1, /* dst_mask */
940 FALSE
), /* pcrel_offset */
942 HOWTO (R_SH_JMP_SLOT64
, /* type */
944 4, /* size (0 = byte, 1 = short, 2 = long) */
946 FALSE
, /* pc_relative */
948 complain_overflow_dont
, /* complain_on_overflow */
949 bfd_elf_generic_reloc
, /* special_function */
950 "R_SH_JMP_SLOT64", /* name */
951 FALSE
, /* partial_inplace */
953 ((bfd_vma
) 0) - 1, /* dst_mask */
954 FALSE
), /* pcrel_offset */
956 HOWTO (R_SH_RELATIVE64
, /* type */
958 4, /* size (0 = byte, 1 = short, 2 = long) */
960 FALSE
, /* pc_relative */
962 complain_overflow_dont
, /* complain_on_overflow */
963 bfd_elf_generic_reloc
, /* special_function */
964 "R_SH_RELATIVE64", /* name */
965 FALSE
, /* partial_inplace */
967 ((bfd_vma
) 0) - 1, /* dst_mask */
968 FALSE
), /* pcrel_offset */
1016 /* Relocations for SHmedia code. None of these are partial_inplace or
1017 use the field being relocated. */
1019 /* The assembler will generate this reloc before a block of SHmedia
1020 instructions. A section should be processed as assuming it contains
1021 data, unless this reloc is seen. Note that a block of SHcompact
1022 instructions are instead preceded by R_SH_CODE.
1023 This is currently not implemented, but should be used for SHmedia
1024 linker relaxation. */
1025 HOWTO (R_SH_SHMEDIA_CODE
, /* type */
1027 1, /* size (0 = byte, 1 = short, 2 = long) */
1029 FALSE
, /* pc_relative */
1031 complain_overflow_unsigned
, /* complain_on_overflow */
1032 sh_elf64_ignore_reloc
, /* special_function */
1033 "R_SH_SHMEDIA_CODE", /* name */
1034 FALSE
, /* partial_inplace */
1037 FALSE
), /* pcrel_offset */
1039 /* The assembler will generate this reloc at a PTA or PTB instruction,
1040 and the linker checks the right type of target, or changes a PTA to a
1041 PTB, if the original insn was PT. */
1042 HOWTO (R_SH_PT_16
, /* type */
1044 2, /* size (0 = byte, 1 = short, 2 = long) */
1046 TRUE
, /* pc_relative */
1048 complain_overflow_signed
, /* complain_on_overflow */
1049 bfd_elf_generic_reloc
, /* special_function */
1050 "R_SH_PT_16", /* name */
1051 FALSE
, /* partial_inplace */
1053 0x3fffc00, /* dst_mask */
1054 TRUE
), /* pcrel_offset */
1056 /* Used in unexpanded MOVI. */
1057 HOWTO (R_SH_IMMS16
, /* type */
1059 2, /* size (0 = byte, 1 = short, 2 = long) */
1061 FALSE
, /* pc_relative */
1063 complain_overflow_signed
, /* complain_on_overflow */
1064 bfd_elf_generic_reloc
, /* special_function */
1065 "R_SH_IMMS16", /* name */
1066 FALSE
, /* partial_inplace */
1068 0x3fffc00, /* dst_mask */
1069 FALSE
), /* pcrel_offset */
1071 /* Used in SHORI. */
1072 HOWTO (R_SH_IMMU16
, /* type */
1074 2, /* size (0 = byte, 1 = short, 2 = long) */
1076 FALSE
, /* pc_relative */
1078 complain_overflow_unsigned
, /* complain_on_overflow */
1079 bfd_elf_generic_reloc
, /* special_function */
1080 "R_SH_IMMU16", /* name */
1081 FALSE
, /* partial_inplace */
1083 0x3fffc00, /* dst_mask */
1084 FALSE
), /* pcrel_offset */
1086 /* Used in MOVI and SHORI (x & 65536). */
1087 HOWTO (R_SH_IMM_LOW16
, /* type */
1089 2, /* size (0 = byte, 1 = short, 2 = long) */
1091 FALSE
, /* pc_relative */
1093 complain_overflow_dont
, /* complain_on_overflow */
1094 bfd_elf_generic_reloc
, /* special_function */
1095 "R_SH_IMM_LOW16", /* name */
1096 FALSE
, /* partial_inplace */
1098 0x3fffc00, /* dst_mask */
1099 FALSE
), /* pcrel_offset */
1101 /* Used in MOVI and SHORI ((x - $) & 65536). */
1102 HOWTO (R_SH_IMM_LOW16_PCREL
, /* type */
1104 2, /* size (0 = byte, 1 = short, 2 = long) */
1106 TRUE
, /* pc_relative */
1108 complain_overflow_dont
, /* complain_on_overflow */
1109 bfd_elf_generic_reloc
, /* special_function */
1110 "R_SH_IMM_LOW16_PCREL", /* name */
1111 FALSE
, /* partial_inplace */
1113 0x3fffc00, /* dst_mask */
1114 TRUE
), /* pcrel_offset */
1116 /* Used in MOVI and SHORI ((x >> 16) & 65536). */
1117 HOWTO (R_SH_IMM_MEDLOW16
, /* type */
1118 16, /* rightshift */
1119 2, /* size (0 = byte, 1 = short, 2 = long) */
1121 FALSE
, /* pc_relative */
1123 complain_overflow_dont
, /* complain_on_overflow */
1124 bfd_elf_generic_reloc
, /* special_function */
1125 "R_SH_IMM_MEDLOW16", /* name */
1126 FALSE
, /* partial_inplace */
1128 0x3fffc00, /* dst_mask */
1129 FALSE
), /* pcrel_offset */
1131 /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */
1132 HOWTO (R_SH_IMM_MEDLOW16_PCREL
, /* type */
1133 16, /* rightshift */
1134 2, /* size (0 = byte, 1 = short, 2 = long) */
1136 TRUE
, /* pc_relative */
1138 complain_overflow_dont
, /* complain_on_overflow */
1139 bfd_elf_generic_reloc
, /* special_function */
1140 "R_SH_IMM_MEDLOW16_PCREL", /* name */
1141 FALSE
, /* partial_inplace */
1143 0x3fffc00, /* dst_mask */
1144 TRUE
), /* pcrel_offset */
1146 /* Used in MOVI and SHORI ((x >> 32) & 65536). */
1147 HOWTO (R_SH_IMM_MEDHI16
, /* type */
1148 32, /* rightshift */
1149 2, /* size (0 = byte, 1 = short, 2 = long) */
1151 FALSE
, /* pc_relative */
1153 complain_overflow_dont
, /* complain_on_overflow */
1154 bfd_elf_generic_reloc
, /* special_function */
1155 "R_SH_IMM_MEDHI16", /* name */
1156 FALSE
, /* partial_inplace */
1158 0x3fffc00, /* dst_mask */
1159 FALSE
), /* pcrel_offset */
1161 /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */
1162 HOWTO (R_SH_IMM_MEDHI16_PCREL
, /* type */
1163 32, /* rightshift */
1164 2, /* size (0 = byte, 1 = short, 2 = long) */
1166 TRUE
, /* pc_relative */
1168 complain_overflow_dont
, /* complain_on_overflow */
1169 bfd_elf_generic_reloc
, /* special_function */
1170 "R_SH_IMM_MEDHI16_PCREL", /* name */
1171 FALSE
, /* partial_inplace */
1173 0x3fffc00, /* dst_mask */
1174 TRUE
), /* pcrel_offset */
1176 /* Used in MOVI and SHORI ((x >> 48) & 65536). */
1177 HOWTO (R_SH_IMM_HI16
, /* type */
1178 48, /* rightshift */
1179 2, /* size (0 = byte, 1 = short, 2 = long) */
1181 FALSE
, /* pc_relative */
1183 complain_overflow_dont
, /* complain_on_overflow */
1184 bfd_elf_generic_reloc
, /* special_function */
1185 "R_SH_IMM_HI16", /* name */
1186 FALSE
, /* partial_inplace */
1188 0x3fffc00, /* dst_mask */
1189 FALSE
), /* pcrel_offset */
1191 /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */
1192 HOWTO (R_SH_IMM_HI16_PCREL
, /* type */
1193 48, /* rightshift */
1194 2, /* size (0 = byte, 1 = short, 2 = long) */
1196 TRUE
, /* pc_relative */
1198 complain_overflow_dont
, /* complain_on_overflow */
1199 bfd_elf_generic_reloc
, /* special_function */
1200 "R_SH_IMM_HI16_PCREL", /* name */
1201 FALSE
, /* partial_inplace */
1203 0x3fffc00, /* dst_mask */
1204 TRUE
), /* pcrel_offset */
1206 /* For the .uaquad pseudo. */
1207 HOWTO (R_SH_64
, /* type */
1209 4, /* size (0 = byte, 1 = short, 2 = long) */
1211 FALSE
, /* pc_relative */
1213 complain_overflow_dont
, /* complain_on_overflow */
1214 bfd_elf_generic_reloc
, /* special_function */
1215 "R_SH_64", /* name */
1216 FALSE
, /* partial_inplace */
1218 ((bfd_vma
) 0) - 1, /* dst_mask */
1219 FALSE
), /* pcrel_offset */
1221 /* For the .uaquad pseudo, (x - $). */
1222 HOWTO (R_SH_64_PCREL
, /* type */
1223 48, /* rightshift */
1224 2, /* size (0 = byte, 1 = short, 2 = long) */
1226 TRUE
, /* pc_relative */
1228 complain_overflow_dont
, /* complain_on_overflow */
1229 bfd_elf_generic_reloc
, /* special_function */
1230 "R_SH_64_PCREL", /* name */
1231 FALSE
, /* partial_inplace */
1233 ((bfd_vma
) 0) - 1, /* dst_mask */
1234 TRUE
), /* pcrel_offset */
1238 /* This function is used for relocs which are only used for relaxing,
1239 which the linker should otherwise ignore. */
1241 static bfd_reloc_status_type
1242 sh_elf64_ignore_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
1243 asymbol
*symbol ATTRIBUTE_UNUSED
,
1244 void *data ATTRIBUTE_UNUSED
, asection
*input_section
,
1246 char **error_message ATTRIBUTE_UNUSED
)
1248 if (output_bfd
!= NULL
)
1249 reloc_entry
->address
+= input_section
->output_offset
;
1250 return bfd_reloc_ok
;
1253 /* This function is used for normal relocs. This used to be like the COFF
1254 function, and is almost certainly incorrect for other ELF targets.
1256 See sh_elf_reloc in elf32-sh.c for the original. */
1258 static bfd_reloc_status_type
1259 sh_elf64_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol_in
,
1260 void *data
, asection
*input_section
, bfd
*output_bfd
,
1261 char **error_message ATTRIBUTE_UNUSED
)
1265 enum elf_sh_reloc_type r_type
;
1266 bfd_vma addr
= reloc_entry
->address
;
1267 bfd_byte
*hit_data
= addr
+ (bfd_byte
*) data
;
1269 r_type
= (enum elf_sh_reloc_type
) reloc_entry
->howto
->type
;
1271 if (output_bfd
!= NULL
)
1273 /* Partial linking--do nothing. */
1274 reloc_entry
->address
+= input_section
->output_offset
;
1275 return bfd_reloc_ok
;
1278 if (symbol_in
!= NULL
1279 && bfd_is_und_section (symbol_in
->section
))
1280 return bfd_reloc_undefined
;
1282 if (bfd_is_com_section (symbol_in
->section
))
1285 sym_value
= (symbol_in
->value
+
1286 symbol_in
->section
->output_section
->vma
+
1287 symbol_in
->section
->output_offset
);
1292 insn
= bfd_get_32 (abfd
, hit_data
);
1293 insn
+= sym_value
+ reloc_entry
->addend
;
1294 bfd_put_32 (abfd
, insn
, hit_data
);
1302 return bfd_reloc_ok
;
1305 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
1307 struct elf_reloc_map
1309 bfd_reloc_code_real_type bfd_reloc_val
;
1310 unsigned char elf_reloc_val
;
1313 /* An array mapping BFD reloc codes to SH ELF relocs. */
1315 static const struct elf_reloc_map sh64_reloc_map
[] =
1317 { BFD_RELOC_NONE
, R_SH_NONE
},
1318 { BFD_RELOC_32
, R_SH_DIR32
},
1319 { BFD_RELOC_CTOR
, R_SH_DIR32
},
1320 { BFD_RELOC_32_PCREL
, R_SH_REL32
},
1321 { BFD_RELOC_8_PCREL
, R_SH_SWITCH8
},
1322 { BFD_RELOC_SH_SWITCH16
, R_SH_SWITCH16
},
1323 { BFD_RELOC_SH_SWITCH32
, R_SH_SWITCH32
},
1324 { BFD_RELOC_VTABLE_INHERIT
, R_SH_GNU_VTINHERIT
},
1325 { BFD_RELOC_VTABLE_ENTRY
, R_SH_GNU_VTENTRY
},
1326 { BFD_RELOC_SH_GOT_LOW16
, R_SH_GOT_LOW16
},
1327 { BFD_RELOC_SH_GOT_MEDLOW16
, R_SH_GOT_MEDLOW16
},
1328 { BFD_RELOC_SH_GOT_MEDHI16
, R_SH_GOT_MEDHI16
},
1329 { BFD_RELOC_SH_GOT_HI16
, R_SH_GOT_HI16
},
1330 { BFD_RELOC_SH_GOTPLT_LOW16
, R_SH_GOTPLT_LOW16
},
1331 { BFD_RELOC_SH_GOTPLT_MEDLOW16
, R_SH_GOTPLT_MEDLOW16
},
1332 { BFD_RELOC_SH_GOTPLT_MEDHI16
, R_SH_GOTPLT_MEDHI16
},
1333 { BFD_RELOC_SH_GOTPLT_HI16
, R_SH_GOTPLT_HI16
},
1334 { BFD_RELOC_SH_PLT_LOW16
, R_SH_PLT_LOW16
},
1335 { BFD_RELOC_SH_PLT_MEDLOW16
, R_SH_PLT_MEDLOW16
},
1336 { BFD_RELOC_SH_PLT_MEDHI16
, R_SH_PLT_MEDHI16
},
1337 { BFD_RELOC_SH_PLT_HI16
, R_SH_PLT_HI16
},
1338 { BFD_RELOC_SH_GOTOFF_LOW16
, R_SH_GOTOFF_LOW16
},
1339 { BFD_RELOC_SH_GOTOFF_MEDLOW16
, R_SH_GOTOFF_MEDLOW16
},
1340 { BFD_RELOC_SH_GOTOFF_MEDHI16
, R_SH_GOTOFF_MEDHI16
},
1341 { BFD_RELOC_SH_GOTOFF_HI16
, R_SH_GOTOFF_HI16
},
1342 { BFD_RELOC_SH_GOTPC_LOW16
, R_SH_GOTPC_LOW16
},
1343 { BFD_RELOC_SH_GOTPC_MEDLOW16
, R_SH_GOTPC_MEDLOW16
},
1344 { BFD_RELOC_SH_GOTPC_MEDHI16
, R_SH_GOTPC_MEDHI16
},
1345 { BFD_RELOC_SH_GOTPC_HI16
, R_SH_GOTPC_HI16
},
1346 { BFD_RELOC_SH_COPY64
, R_SH_COPY64
},
1347 { BFD_RELOC_SH_GLOB_DAT64
, R_SH_GLOB_DAT64
},
1348 { BFD_RELOC_SH_JMP_SLOT64
, R_SH_JMP_SLOT64
},
1349 { BFD_RELOC_SH_RELATIVE64
, R_SH_RELATIVE64
},
1350 { BFD_RELOC_SH_GOT10BY4
, R_SH_GOT10BY4
},
1351 { BFD_RELOC_SH_GOT10BY8
, R_SH_GOT10BY8
},
1352 { BFD_RELOC_SH_GOTPLT10BY4
, R_SH_GOTPLT10BY4
},
1353 { BFD_RELOC_SH_GOTPLT10BY8
, R_SH_GOTPLT10BY8
},
1354 { BFD_RELOC_SH_PT_16
, R_SH_PT_16
},
1355 { BFD_RELOC_SH_SHMEDIA_CODE
, R_SH_SHMEDIA_CODE
},
1356 { BFD_RELOC_SH_IMMU5
, R_SH_DIR5U
},
1357 { BFD_RELOC_SH_IMMS6
, R_SH_DIR6S
},
1358 { BFD_RELOC_SH_IMMU6
, R_SH_DIR6U
},
1359 { BFD_RELOC_SH_IMMS10
, R_SH_DIR10S
},
1360 { BFD_RELOC_SH_IMMS10BY2
, R_SH_DIR10SW
},
1361 { BFD_RELOC_SH_IMMS10BY4
, R_SH_DIR10SL
},
1362 { BFD_RELOC_SH_IMMS10BY8
, R_SH_DIR10SQ
},
1363 { BFD_RELOC_SH_IMMS16
, R_SH_IMMS16
},
1364 { BFD_RELOC_SH_IMMU16
, R_SH_IMMU16
},
1365 { BFD_RELOC_SH_IMM_LOW16
, R_SH_IMM_LOW16
},
1366 { BFD_RELOC_SH_IMM_LOW16_PCREL
, R_SH_IMM_LOW16_PCREL
},
1367 { BFD_RELOC_SH_IMM_MEDLOW16
, R_SH_IMM_MEDLOW16
},
1368 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL
, R_SH_IMM_MEDLOW16_PCREL
},
1369 { BFD_RELOC_SH_IMM_MEDHI16
, R_SH_IMM_MEDHI16
},
1370 { BFD_RELOC_SH_IMM_MEDHI16_PCREL
, R_SH_IMM_MEDHI16_PCREL
},
1371 { BFD_RELOC_SH_IMM_HI16
, R_SH_IMM_HI16
},
1372 { BFD_RELOC_SH_IMM_HI16_PCREL
, R_SH_IMM_HI16_PCREL
},
1373 { BFD_RELOC_64
, R_SH_64
},
1374 { BFD_RELOC_64_PCREL
, R_SH_64_PCREL
},
1377 /* Given a BFD reloc code, return the howto structure for the
1378 corresponding SH ELf reloc. */
1380 static reloc_howto_type
*
1381 sh_elf64_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
1382 bfd_reloc_code_real_type code
)
1386 for (i
= 0; i
< sizeof (sh64_reloc_map
) / sizeof (struct elf_reloc_map
); i
++)
1388 if (sh64_reloc_map
[i
].bfd_reloc_val
== code
)
1389 return &sh_elf64_howto_table
[(int) sh64_reloc_map
[i
].elf_reloc_val
];
1395 /* Given an ELF reloc, fill in the howto field of a relent.
1397 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1400 sh_elf64_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
1401 Elf_Internal_Rela
*dst
)
1405 r
= ELF64_R_TYPE (dst
->r_info
);
1407 BFD_ASSERT (r
<= (unsigned int) R_SH_64_PCREL
);
1408 BFD_ASSERT (r
< R_SH_FIRST_INVALID_RELOC
|| r
> R_SH_LAST_INVALID_RELOC
);
1409 BFD_ASSERT (r
< R_SH_DIR8WPN
|| r
> R_SH_LAST_INVALID_RELOC_2
);
1410 BFD_ASSERT (r
< R_SH_FIRST_INVALID_RELOC_3
|| r
> R_SH_GOTPLT32
);
1411 BFD_ASSERT (r
< R_SH_FIRST_INVALID_RELOC_4
|| r
> R_SH_LAST_INVALID_RELOC_4
);
1413 cache_ptr
->howto
= &sh_elf64_howto_table
[r
];
1416 /* Relocate an SH ELF section.
1418 See sh_elf_info_to_howto in elf32-sh.c for the original. */
1421 sh_elf64_relocate_section (bfd
*output_bfd ATTRIBUTE_UNUSED
,
1422 struct bfd_link_info
*info
, bfd
*input_bfd
,
1423 asection
*input_section
, bfd_byte
*contents
,
1424 Elf_Internal_Rela
*relocs
,
1425 Elf_Internal_Sym
*local_syms
,
1426 asection
**local_sections
)
1428 Elf_Internal_Shdr
*symtab_hdr
;
1429 struct elf_link_hash_entry
**sym_hashes
;
1430 Elf_Internal_Rela
*rel
, *relend
;
1432 bfd_vma
*local_got_offsets
;
1437 bfd_vma disp
, dropped
;
1439 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
1440 sym_hashes
= elf_sym_hashes (input_bfd
);
1441 dynobj
= elf_hash_table (info
)->dynobj
;
1442 local_got_offsets
= elf_local_got_offsets (input_bfd
);
1450 relend
= relocs
+ input_section
->reloc_count
;
1451 for (; rel
< relend
; rel
++)
1454 reloc_howto_type
*howto
;
1455 unsigned long r_symndx
;
1456 Elf_Internal_Sym
*sym
;
1458 struct elf_link_hash_entry
*h
;
1460 bfd_vma addend
= (bfd_vma
)0;
1461 bfd_reloc_status_type r
;
1462 int seen_stt_datalabel
= 0;
1464 r_symndx
= ELF64_R_SYM (rel
->r_info
);
1466 r_type
= ELF64_R_TYPE (rel
->r_info
);
1468 if (r_type
== (int) R_SH_NONE
)
1472 || r_type
> R_SH_64_PCREL
1473 || (r_type
>= (int) R_SH_FIRST_INVALID_RELOC
1474 && r_type
<= (int) R_SH_LAST_INVALID_RELOC
)
1475 || (r_type
>= (int) R_SH_DIR8WPN
1476 && r_type
<= (int) R_SH_LAST_INVALID_RELOC
)
1477 || (r_type
>= (int) R_SH_GNU_VTINHERIT
1478 && r_type
<= (int) R_SH_PSHL
)
1479 || (r_type
>= (int) R_SH_FIRST_INVALID_RELOC_2
1480 && r_type
<= R_SH_GOTPLT32
)
1481 || (r_type
>= (int) R_SH_FIRST_INVALID_RELOC_4
1482 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_4
))
1484 bfd_set_error (bfd_error_bad_value
);
1488 howto
= sh_elf64_howto_table
+ r_type
;
1490 /* This is a final link. */
1494 if (r_symndx
< symtab_hdr
->sh_info
)
1496 sym
= local_syms
+ r_symndx
;
1497 sec
= local_sections
[r_symndx
];
1498 relocation
= ((sec
->output_section
->vma
1499 + sec
->output_offset
1501 | ((sym
->st_other
& STO_SH5_ISA32
) != 0));
1503 /* A local symbol never has STO_SH5_ISA32, so we don't need
1504 datalabel processing here. Make sure this does not change
1506 if ((sym
->st_other
& STO_SH5_ISA32
) != 0)
1507 ((*info
->callbacks
->reloc_dangerous
)
1509 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
1510 input_bfd
, input_section
, rel
->r_offset
));
1512 if (info
->relocatable
)
1514 /* This is a relocatable link. We don't have to change
1515 anything, unless the reloc is against a section symbol,
1516 in which case we have to adjust according to where the
1517 section symbol winds up in the output section. */
1518 sym
= local_syms
+ r_symndx
;
1519 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
1520 goto final_link_relocate
;
1524 else if (! howto
->partial_inplace
)
1526 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
1527 relocation
|= ((sym
->st_other
& STO_SH5_ISA32
) != 0);
1529 else if ((sec
->flags
& SEC_MERGE
)
1530 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
1534 if (howto
->rightshift
|| howto
->src_mask
!= 0xffffffff)
1536 (*_bfd_error_handler
)
1537 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
1538 input_bfd
, input_section
,
1539 (long) rel
->r_offset
, howto
->name
);
1543 addend
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
1546 _bfd_elf_rel_local_sym (output_bfd
, sym
, &msec
, addend
)
1548 addend
+= msec
->output_section
->vma
+ msec
->output_offset
;
1549 bfd_put_32 (input_bfd
, addend
, contents
+ rel
->r_offset
);
1555 /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ? */
1557 /* Section symbols are never (?) placed in the hash table, so
1558 we can just ignore hash relocations when creating a
1559 relocatable object file. */
1560 if (info
->relocatable
)
1563 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1564 while (h
->root
.type
== bfd_link_hash_indirect
1565 || h
->root
.type
== bfd_link_hash_warning
)
1567 /* If the reference passes a symbol marked with
1568 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1570 seen_stt_datalabel
|= h
->type
== STT_DATALABEL
;
1571 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1574 if (h
->root
.type
== bfd_link_hash_defined
1575 || h
->root
.type
== bfd_link_hash_defweak
)
1577 sec
= h
->root
.u
.def
.section
;
1578 /* In these cases, we don't need the relocation value.
1579 We check specially because in some obscure cases
1580 sec->output_section will be NULL. */
1581 if (r_type
== R_SH_GOTPC_LOW16
1582 || r_type
== R_SH_GOTPC_MEDLOW16
1583 || r_type
== R_SH_GOTPC_MEDHI16
1584 || r_type
== R_SH_GOTPC_HI16
1585 || ((r_type
== R_SH_PLT_LOW16
1586 || r_type
== R_SH_PLT_MEDLOW16
1587 || r_type
== R_SH_PLT_MEDHI16
1588 || r_type
== R_SH_PLT_HI16
)
1589 && h
->plt
.offset
!= (bfd_vma
) -1)
1590 || ((r_type
== R_SH_GOT_LOW16
1591 || r_type
== R_SH_GOT_MEDLOW16
1592 || r_type
== R_SH_GOT_MEDHI16
1593 || r_type
== R_SH_GOT_HI16
)
1594 && elf_hash_table (info
)->dynamic_sections_created
1596 || (! info
->symbolic
&& h
->dynindx
!= -1)
1597 || !h
->def_regular
))
1598 /* The cases above are those in which relocation is
1599 overwritten in the switch block below. The cases
1600 below are those in which we must defer relocation
1601 to run-time, because we can't resolve absolute
1602 addresses when creating a shared library. */
1604 && ((! info
->symbolic
&& h
->dynindx
!= -1)
1606 && ((r_type
== R_SH_64
1607 && !(ELF_ST_VISIBILITY (h
->other
) == STV_INTERNAL
1608 || ELF_ST_VISIBILITY (h
->other
) == STV_HIDDEN
))
1609 || r_type
== R_SH_64_PCREL
)
1610 && ((input_section
->flags
& SEC_ALLOC
) != 0
1611 /* DWARF will emit R_SH_DIR32 relocations in its
1612 sections against symbols defined externally
1613 in shared libraries. We can't do anything
1615 || (input_section
->flags
& SEC_DEBUGGING
) != 0))
1616 /* Dynamic relocs are not propagated for SEC_DEBUGGING
1617 sections because such sections are not SEC_ALLOC and
1618 thus ld.so will not process them. */
1619 || (sec
->output_section
== NULL
1620 && ((input_section
->flags
& SEC_DEBUGGING
) != 0
1621 && h
->def_dynamic
)))
1623 else if (sec
->output_section
== NULL
)
1625 (*_bfd_error_handler
)
1626 (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
1627 bfd_get_filename (input_bfd
), h
->root
.root
.string
,
1628 bfd_get_section_name (input_bfd
, input_section
));
1632 relocation
= ((h
->root
.u
.def
.value
1633 + sec
->output_section
->vma
1634 + sec
->output_offset
)
1635 /* A STO_SH5_ISA32 causes a "bitor 1" to the
1636 symbol value, unless we've seen
1637 STT_DATALABEL on the way to it. */
1638 | ((h
->other
& STO_SH5_ISA32
) != 0
1639 && ! seen_stt_datalabel
));
1641 else if (h
->root
.type
== bfd_link_hash_undefweak
)
1643 else if (info
->unresolved_syms_in_objects
== RM_IGNORE
1644 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
1648 if (! ((*info
->callbacks
->undefined_symbol
)
1649 (info
, h
->root
.root
.string
, input_bfd
,
1650 input_section
, rel
->r_offset
,
1651 (info
->unresolved_syms_in_objects
== RM_GENERATE_ERROR
1652 || ELF_ST_VISIBILITY (h
->other
)))))
1659 - input_section
->output_section
->vma
1660 - input_section
->output_offset
1663 switch ((int)r_type
)
1665 case R_SH_PT_16
: dropped
= disp
& 2; break;
1666 case R_SH_DIR10SW
: dropped
= disp
& 1; break;
1667 case R_SH_DIR10SL
: dropped
= disp
& 3; break;
1668 case R_SH_DIR10SQ
: dropped
= disp
& 7; break;
1672 (*_bfd_error_handler
)
1673 (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
1674 bfd_get_filename (input_bfd
), (int)r_type
, (unsigned)rel
->r_offset
, (unsigned)relocation
);
1675 bfd_set_error (bfd_error_bad_value
);
1678 switch ((int)r_type
)
1683 && (input_section
->flags
& SEC_ALLOC
) != 0
1684 && (r_type
!= R_SH_64_PCREL
1687 && (! info
->symbolic
1688 || !h
->def_regular
))))
1690 Elf_Internal_Rela outrel
;
1692 bfd_boolean skip
, relocate
;
1694 /* When generating a shared object, these relocations
1695 are copied into the output file to be resolved at run
1702 name
= (bfd_elf_string_from_elf_section
1704 elf_elfheader (input_bfd
)->e_shstrndx
,
1705 elf_section_data (input_section
)->rel_hdr
.sh_name
));
1709 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
1710 && strcmp (bfd_get_section_name (input_bfd
,
1714 sreloc
= bfd_get_section_by_name (dynobj
, name
);
1715 BFD_ASSERT (sreloc
!= NULL
);
1722 = _bfd_elf_section_offset (output_bfd
, info
,
1723 input_section
, rel
->r_offset
);
1725 if (outrel
.r_offset
== (bfd_vma
) -1)
1727 else if (outrel
.r_offset
== (bfd_vma
) -2)
1728 skip
= TRUE
, relocate
= TRUE
;
1730 outrel
.r_offset
+= (input_section
->output_section
->vma
1731 + input_section
->output_offset
);
1734 memset (&outrel
, 0, sizeof outrel
);
1735 else if (r_type
== R_SH_64_PCREL
)
1737 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
1738 outrel
.r_info
= ELF64_R_INFO (h
->dynindx
, R_SH_64_PCREL
);
1739 outrel
.r_addend
= rel
->r_addend
;
1743 /* h->dynindx may be -1 if this symbol was marked to
1746 || ((info
->symbolic
|| h
->dynindx
== -1)
1750 outrel
.r_info
= ELF64_R_INFO (0, R_SH_RELATIVE64
);
1751 outrel
.r_addend
= relocation
+ rel
->r_addend
;
1755 BFD_ASSERT (h
->dynindx
!= -1);
1756 outrel
.r_info
= ELF64_R_INFO (h
->dynindx
, R_SH_64
);
1757 outrel
.r_addend
= relocation
+ rel
->r_addend
;
1761 loc
= sreloc
->contents
;
1762 loc
+= sreloc
->reloc_count
++ * sizeof (Elf64_External_Rela
);
1763 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
1765 /* If this reloc is against an external symbol, we do
1766 not want to fiddle with the addend. Otherwise, we
1767 need to include the symbol value so that it becomes
1768 an addend for the dynamic reloc. */
1772 else if (r_type
== R_SH_64
)
1773 addend
= rel
->r_addend
;
1774 goto final_link_relocate
;
1776 case R_SH_GOTPLT_LOW16
:
1777 case R_SH_GOTPLT_MEDLOW16
:
1778 case R_SH_GOTPLT_MEDHI16
:
1779 case R_SH_GOTPLT_HI16
:
1780 case R_SH_GOTPLT10BY4
:
1781 case R_SH_GOTPLT10BY8
:
1782 /* Relocation is to the entry for this symbol in the
1783 procedure linkage table. */
1786 || ELF_ST_VISIBILITY (h
->other
) == STV_INTERNAL
1787 || ELF_ST_VISIBILITY (h
->other
) == STV_HIDDEN
1791 || h
->plt
.offset
== (bfd_vma
) -1
1792 || h
->got
.offset
!= (bfd_vma
) -1)
1795 /* Relocation is to the entry for this symbol in the global
1796 offset table extension for the procedure linkage table. */
1797 if (sgotplt
== NULL
)
1799 sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
1800 BFD_ASSERT (sgotplt
!= NULL
);
1803 relocation
= (sgotplt
->output_offset
1804 + ((h
->plt
.offset
/ elf_sh64_sizeof_plt (info
)
1807 relocation
-= GOT_BIAS
;
1809 goto final_link_relocate
;
1812 case R_SH_GOT_LOW16
:
1813 case R_SH_GOT_MEDLOW16
:
1814 case R_SH_GOT_MEDHI16
:
1818 /* Relocation is to the entry for this symbol in the global
1822 sgot
= bfd_get_section_by_name (dynobj
, ".got");
1823 BFD_ASSERT (sgot
!= NULL
);
1830 off
= h
->got
.offset
;
1831 if (seen_stt_datalabel
)
1833 struct elf_sh64_link_hash_entry
*hsh
;
1835 hsh
= (struct elf_sh64_link_hash_entry
*)h
;
1836 off
= hsh
->datalabel_got_offset
;
1838 BFD_ASSERT (off
!= (bfd_vma
) -1);
1840 if (! elf_hash_table (info
)->dynamic_sections_created
1842 && (info
->symbolic
|| h
->dynindx
== -1
1843 || ELF_ST_VISIBILITY (h
->other
) == STV_INTERNAL
1844 || ELF_ST_VISIBILITY (h
->other
) == STV_HIDDEN
)
1847 /* This is actually a static link, or it is a
1848 -Bsymbolic link and the symbol is defined
1849 locally, or the symbol was forced to be local
1850 because of a version file. We must initialize
1851 this entry in the global offset table. Since the
1852 offset must always be a multiple of 4, we use the
1853 least significant bit to record whether we have
1854 initialized it already.
1856 When doing a dynamic link, we create a .rela.got
1857 relocation entry to initialize the value. This
1858 is done in the finish_dynamic_symbol routine. */
1863 bfd_put_64 (output_bfd
, relocation
,
1864 sgot
->contents
+ off
);
1865 if (seen_stt_datalabel
)
1867 struct elf_sh64_link_hash_entry
*hsh
;
1869 hsh
= (struct elf_sh64_link_hash_entry
*)h
;
1870 hsh
->datalabel_got_offset
|= 1;
1877 relocation
= sgot
->output_offset
+ off
;
1885 BFD_ASSERT (local_got_offsets
!= NULL
1886 && (local_got_offsets
[symtab_hdr
->sh_info
1890 off
= local_got_offsets
[symtab_hdr
->sh_info
1895 BFD_ASSERT (local_got_offsets
!= NULL
1896 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
1898 off
= local_got_offsets
[r_symndx
];
1901 /* The offset must always be a multiple of 8. We use
1902 the least significant bit to record whether we have
1903 already generated the necessary reloc. */
1908 bfd_put_64 (output_bfd
, relocation
, sgot
->contents
+ off
);
1913 Elf_Internal_Rela outrel
;
1916 s
= bfd_get_section_by_name (dynobj
, ".rela.got");
1917 BFD_ASSERT (s
!= NULL
);
1919 outrel
.r_offset
= (sgot
->output_section
->vma
1920 + sgot
->output_offset
1922 outrel
.r_info
= ELF64_R_INFO (0, R_SH_RELATIVE64
);
1923 outrel
.r_addend
= relocation
;
1925 loc
+= s
->reloc_count
++ * sizeof (Elf64_External_Rela
);
1926 bfd_elf64_swap_reloca_out (output_bfd
, &outrel
, loc
);
1930 local_got_offsets
[symtab_hdr
->sh_info
+ r_symndx
] |= 1;
1932 local_got_offsets
[r_symndx
] |= 1;
1935 relocation
= sgot
->output_offset
+ off
;
1938 relocation
-= GOT_BIAS
;
1940 goto final_link_relocate
;
1942 case R_SH_GOTOFF_LOW16
:
1943 case R_SH_GOTOFF_MEDLOW16
:
1944 case R_SH_GOTOFF_MEDHI16
:
1945 case R_SH_GOTOFF_HI16
:
1946 /* Relocation is relative to the start of the global offset
1951 sgot
= bfd_get_section_by_name (dynobj
, ".got");
1952 BFD_ASSERT (sgot
!= NULL
);
1955 /* Note that sgot->output_offset is not involved in this
1956 calculation. We always want the start of .got. If we
1957 defined _GLOBAL_OFFSET_TABLE in a different way, as is
1958 permitted by the ABI, we might have to change this
1960 relocation
-= sgot
->output_section
->vma
;
1962 relocation
-= GOT_BIAS
;
1964 addend
= rel
->r_addend
;
1966 goto final_link_relocate
;
1968 case R_SH_GOTPC_LOW16
:
1969 case R_SH_GOTPC_MEDLOW16
:
1970 case R_SH_GOTPC_MEDHI16
:
1971 case R_SH_GOTPC_HI16
:
1972 /* Use global offset table as symbol value. */
1976 sgot
= bfd_get_section_by_name (dynobj
, ".got");
1977 BFD_ASSERT (sgot
!= NULL
);
1980 relocation
= sgot
->output_section
->vma
;
1982 relocation
+= GOT_BIAS
;
1984 addend
= rel
->r_addend
;
1986 goto final_link_relocate
;
1988 case R_SH_PLT_LOW16
:
1989 case R_SH_PLT_MEDLOW16
:
1990 case R_SH_PLT_MEDHI16
:
1992 /* Relocation is to the entry for this symbol in the
1993 procedure linkage table. */
1995 /* Resolve a PLT reloc against a local symbol directly,
1996 without using the procedure linkage table. */
1998 goto final_link_relocate
;
2000 if (ELF_ST_VISIBILITY (h
->other
) == STV_INTERNAL
2001 || ELF_ST_VISIBILITY (h
->other
) == STV_HIDDEN
)
2002 goto final_link_relocate
;
2004 if (h
->plt
.offset
== (bfd_vma
) -1)
2006 /* We didn't make a PLT entry for this symbol. This
2007 happens when statically linking PIC code, or when
2008 using -Bsymbolic. */
2009 goto final_link_relocate
;
2014 splt
= bfd_get_section_by_name (dynobj
, ".plt");
2015 BFD_ASSERT (splt
!= NULL
);
2018 relocation
= (splt
->output_section
->vma
2019 + splt
->output_offset
2023 addend
= rel
->r_addend
;
2025 goto final_link_relocate
;
2028 case R_SH_SHMEDIA_CODE
:
2039 case R_SH_IMM_LOW16
:
2040 case R_SH_IMM_LOW16_PCREL
:
2041 case R_SH_IMM_MEDLOW16
:
2042 case R_SH_IMM_MEDLOW16_PCREL
:
2043 case R_SH_IMM_MEDHI16
:
2044 case R_SH_IMM_MEDHI16_PCREL
:
2046 case R_SH_IMM_HI16_PCREL
:
2047 addend
= rel
->r_addend
;
2050 final_link_relocate
:
2051 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
2052 contents
, rel
->r_offset
,
2053 relocation
, addend
);
2057 bfd_set_error (bfd_error_bad_value
);
2062 if (r
!= bfd_reloc_ok
)
2067 case bfd_reloc_outofrange
:
2069 case bfd_reloc_overflow
:
2077 name
= (bfd_elf_string_from_elf_section
2078 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
));
2082 name
= bfd_section_name (input_bfd
, sec
);
2084 if (! ((*info
->callbacks
->reloc_overflow
)
2085 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
2086 (bfd_vma
) 0, input_bfd
, input_section
,
2098 /* This is a version of bfd_generic_get_relocated_section_contents
2099 that uses sh_elf64_relocate_section.
2101 See sh_elf_relocate_section in elf32-sh.c for the original. */
2104 sh_elf64_get_relocated_section_contents (bfd
*output_bfd
,
2105 struct bfd_link_info
*link_info
,
2106 struct bfd_link_order
*link_order
,
2108 bfd_boolean relocatable
,
2111 Elf_Internal_Shdr
*symtab_hdr
;
2112 asection
*input_section
= link_order
->u
.indirect
.section
;
2113 bfd
*input_bfd
= input_section
->owner
;
2114 asection
**sections
= NULL
;
2115 Elf_Internal_Rela
*internal_relocs
= NULL
;
2116 Elf_Internal_Sym
*isymbuf
= NULL
;
2118 /* We only need to handle the case of relaxing, or of having a
2119 particular set of section contents, specially. */
2121 || elf_section_data (input_section
)->this_hdr
.contents
== NULL
)
2122 return bfd_generic_get_relocated_section_contents (output_bfd
, link_info
,
2127 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2129 memcpy (data
, elf_section_data (input_section
)->this_hdr
.contents
,
2130 input_section
->size
);
2132 if ((input_section
->flags
& SEC_RELOC
) != 0
2133 && input_section
->reloc_count
> 0)
2135 Elf_Internal_Sym
*isymp
;
2136 Elf_Internal_Sym
*isymend
;
2139 /* Read this BFD's local symbols. */
2140 if (symtab_hdr
->sh_info
!= 0)
2142 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
2143 if (isymbuf
== NULL
)
2144 isymbuf
= bfd_elf_get_elf_syms (input_bfd
, symtab_hdr
,
2145 symtab_hdr
->sh_info
, 0,
2147 if (isymbuf
== NULL
)
2151 internal_relocs
= (_bfd_elf_link_read_relocs
2152 (input_bfd
, input_section
, NULL
,
2153 (Elf_Internal_Rela
*) NULL
, FALSE
));
2154 if (internal_relocs
== NULL
)
2157 sections
= (asection
**) bfd_malloc (symtab_hdr
->sh_info
2158 * sizeof (asection
*));
2159 if (sections
== NULL
&& symtab_hdr
->sh_info
> 0)
2163 isymend
= isymbuf
+ symtab_hdr
->sh_info
;
2164 for (isymp
= isymbuf
; isymp
< isymend
; ++isymp
, ++secpp
)
2168 if (isymp
->st_shndx
== SHN_UNDEF
)
2169 isec
= bfd_und_section_ptr
;
2170 else if (isymp
->st_shndx
> 0 && isymp
->st_shndx
< SHN_LORESERVE
)
2171 isec
= bfd_section_from_elf_index (input_bfd
, isymp
->st_shndx
);
2172 else if (isymp
->st_shndx
== SHN_ABS
)
2173 isec
= bfd_abs_section_ptr
;
2174 else if (isymp
->st_shndx
== SHN_COMMON
)
2175 isec
= bfd_com_section_ptr
;
2185 if (! sh_elf64_relocate_section (output_bfd
, link_info
, input_bfd
,
2186 input_section
, data
, internal_relocs
,
2190 if (sections
!= NULL
)
2192 if (internal_relocs
!= elf_section_data (input_section
)->relocs
)
2193 free (internal_relocs
);
2195 && (unsigned char *) isymbuf
!= symtab_hdr
->contents
)
2202 if (sections
!= NULL
)
2204 if (internal_relocs
!= NULL
2205 && internal_relocs
!= elf_section_data (input_section
)->relocs
)
2206 free (internal_relocs
);
2208 && (unsigned char *) isymbuf
!= symtab_hdr
->contents
)
2213 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections. */
2216 sh64_elf64_fake_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2217 Elf_Internal_Shdr
*elf_section_hdr
,
2220 /* Code sections can only contain SH64 code, so mark them as such. */
2221 if (bfd_get_section_flags (output_bfd
, asect
) & SEC_CODE
)
2222 elf_section_hdr
->sh_flags
|= SHF_SH5_ISA32
;
2228 sh_elf64_set_mach_from_flags (bfd
*abfd
)
2230 flagword flags
= elf_elfheader (abfd
)->e_flags
;
2232 switch (flags
& EF_SH_MACH_MASK
)
2235 /* Just one, but keep the switch construct to make additions easy. */
2236 bfd_default_set_arch_mach (abfd
, bfd_arch_sh
, bfd_mach_sh5
);
2240 bfd_set_error (bfd_error_wrong_format
);
2246 /* Function to keep SH64 specific file flags.
2248 See sh64_elf_set_private_flags in elf32-sh64.c for the original. */
2251 sh_elf64_set_private_flags (bfd
*abfd
, flagword flags
)
2253 BFD_ASSERT (! elf_flags_init (abfd
)
2254 || elf_elfheader (abfd
)->e_flags
== flags
);
2256 elf_elfheader (abfd
)->e_flags
= flags
;
2257 elf_flags_init (abfd
) = TRUE
;
2258 return sh_elf64_set_mach_from_flags (abfd
);
2261 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2262 code, to keep attributes the same as for SHmedia in 32-bit ELF. */
2265 sh_elf64_copy_private_data_internal (bfd
*ibfd
, bfd
*obfd
)
2267 Elf_Internal_Shdr
**o_shdrp
;
2271 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2272 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2275 o_shdrp
= elf_elfsections (obfd
);
2276 for (osec
= obfd
->sections
; osec
; osec
= osec
->next
)
2278 int oIndex
= ((struct bfd_elf_section_data
*) elf_section_data (osec
))->this_idx
;
2279 for (isec
= ibfd
->sections
; isec
; isec
= isec
->next
)
2281 if (strcmp (osec
->name
, isec
->name
) == 0)
2283 /* Note that we're not disallowing mixing data and code. */
2284 if ((elf_section_data (isec
)->this_hdr
.sh_flags
2285 & SHF_SH5_ISA32
) != 0)
2286 o_shdrp
[oIndex
]->sh_flags
|= SHF_SH5_ISA32
;
2292 return sh_elf64_set_private_flags (obfd
, elf_elfheader (ibfd
)->e_flags
);
2296 sh_elf64_copy_private_data (bfd
*ibfd
, bfd
*obfd
)
2298 return sh_elf64_copy_private_data_internal (ibfd
, obfd
);
2302 sh_elf64_merge_private_data (bfd
*ibfd
, bfd
*obfd
)
2304 flagword old_flags
, new_flags
;
2306 if (! _bfd_generic_verify_endian_match (ibfd
, obfd
))
2309 if ( bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
2310 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
2313 if (bfd_get_arch_size (ibfd
) != bfd_get_arch_size (obfd
))
2317 if (bfd_get_arch_size (ibfd
) == 32
2318 && bfd_get_arch_size (obfd
) == 64)
2319 msg
= _("%s: compiled as 32-bit object and %s is 64-bit");
2320 else if (bfd_get_arch_size (ibfd
) == 64
2321 && bfd_get_arch_size (obfd
) == 32)
2322 msg
= _("%s: compiled as 64-bit object and %s is 32-bit");
2324 msg
= _("%s: object size does not match that of target %s");
2326 (*_bfd_error_handler
) (msg
, bfd_get_filename (ibfd
),
2327 bfd_get_filename (obfd
));
2328 bfd_set_error (bfd_error_wrong_format
);
2332 old_flags
= elf_elfheader (obfd
)->e_flags
;
2333 new_flags
= elf_elfheader (ibfd
)->e_flags
;
2334 if (! elf_flags_init (obfd
))
2336 /* This happens when ld starts out with a 'blank' output file. */
2337 elf_flags_init (obfd
) = TRUE
;
2338 elf_elfheader (obfd
)->e_flags
= old_flags
= new_flags
;
2340 /* We don't allow linking in anything else than SH64 code, and since
2341 this is a 64-bit ELF, we assume the 64-bit ABI is used. Add code
2342 here as things change. */
2343 else if ((new_flags
& EF_SH_MACH_MASK
) != EF_SH5
)
2345 (*_bfd_error_handler
)
2346 ("%s: does not use the SH64 64-bit ABI as previous modules do",
2347 bfd_get_filename (ibfd
));
2348 bfd_set_error (bfd_error_bad_value
);
2352 sh_elf64_copy_private_data_internal (ibfd
, obfd
);
2354 /* I can't think of anything sane other than old_flags being EF_SH5 and
2355 that we need to preserve that. */
2356 elf_elfheader (obfd
)->e_flags
= old_flags
;
2358 return sh_elf64_set_mach_from_flags (obfd
);
2361 /* Return the section that should be marked against GC for a given
2365 sh_elf64_gc_mark_hook (asection
*sec
,
2366 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2367 Elf_Internal_Rela
*rel
,
2368 struct elf_link_hash_entry
*h
,
2369 Elf_Internal_Sym
*sym
)
2373 switch (ELF64_R_TYPE (rel
->r_info
))
2375 case R_SH_GNU_VTINHERIT
:
2376 case R_SH_GNU_VTENTRY
:
2380 while (h
->root
.type
== bfd_link_hash_indirect
2381 && h
->root
.u
.i
.link
)
2382 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2383 switch (h
->root
.type
)
2385 case bfd_link_hash_defined
:
2386 case bfd_link_hash_defweak
:
2387 return h
->root
.u
.def
.section
;
2389 case bfd_link_hash_common
:
2390 return h
->root
.u
.c
.p
->section
;
2398 return bfd_section_from_elf_index (sec
->owner
, sym
->st_shndx
);
2403 /* Update the got entry reference counts for the section being removed. */
2406 sh_elf64_gc_sweep_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2407 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2408 asection
*sec ATTRIBUTE_UNUSED
,
2409 const Elf_Internal_Rela
*relocs ATTRIBUTE_UNUSED
)
2411 /* No got and plt entries for 64-bit SH at present. */
2415 /* Look through the relocs for a section during the first phase.
2416 Since we don't do .gots or .plts, we just need to consider the
2417 virtual table relocs for gc. */
2420 sh_elf64_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
2421 asection
*sec
, const Elf_Internal_Rela
*relocs
)
2423 Elf_Internal_Shdr
*symtab_hdr
;
2424 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
2425 const Elf_Internal_Rela
*rel
;
2426 const Elf_Internal_Rela
*rel_end
;
2428 bfd_vma
*local_got_offsets
;
2437 if (info
->relocatable
)
2440 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2441 sym_hashes
= elf_sym_hashes (abfd
);
2442 sym_hashes_end
= sym_hashes
+ symtab_hdr
->sh_size
/sizeof(Elf64_External_Sym
);
2443 if (!elf_bad_symtab (abfd
))
2444 sym_hashes_end
-= symtab_hdr
->sh_info
;
2446 dynobj
= elf_hash_table (info
)->dynobj
;
2447 local_got_offsets
= elf_local_got_offsets (abfd
);
2449 rel_end
= relocs
+ sec
->reloc_count
;
2450 for (rel
= relocs
; rel
< rel_end
; rel
++)
2452 struct elf_link_hash_entry
*h
;
2453 unsigned long r_symndx
;
2455 r_symndx
= ELF64_R_SYM (rel
->r_info
);
2456 if (r_symndx
< symtab_hdr
->sh_info
)
2459 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
2461 /* Some relocs require a global offset table. */
2464 switch (ELF64_R_TYPE (rel
->r_info
))
2466 case R_SH_GOTPLT_LOW16
:
2467 case R_SH_GOTPLT_MEDLOW16
:
2468 case R_SH_GOTPLT_MEDHI16
:
2469 case R_SH_GOTPLT_HI16
:
2470 case R_SH_GOTPLT10BY4
:
2471 case R_SH_GOTPLT10BY8
:
2472 case R_SH_GOT_LOW16
:
2473 case R_SH_GOT_MEDLOW16
:
2474 case R_SH_GOT_MEDHI16
:
2478 case R_SH_GOTOFF_LOW16
:
2479 case R_SH_GOTOFF_MEDLOW16
:
2480 case R_SH_GOTOFF_MEDHI16
:
2481 case R_SH_GOTOFF_HI16
:
2482 case R_SH_GOTPC_LOW16
:
2483 case R_SH_GOTPC_MEDLOW16
:
2484 case R_SH_GOTPC_MEDHI16
:
2485 case R_SH_GOTPC_HI16
:
2486 elf_hash_table (info
)->dynobj
= dynobj
= abfd
;
2487 if (! _bfd_elf_create_got_section (dynobj
, info
))
2496 switch (ELF64_R_TYPE (rel
->r_info
))
2498 /* This relocation describes the C++ object vtable hierarchy.
2499 Reconstruct it for later use during GC. */
2500 case R_SH_GNU_VTINHERIT
:
2501 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
2505 /* This relocation describes which C++ vtable entries are actually
2506 used. Record for later use during GC. */
2507 case R_SH_GNU_VTENTRY
:
2508 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
2513 case R_SH_GOT_LOW16
:
2514 case R_SH_GOT_MEDLOW16
:
2515 case R_SH_GOT_MEDHI16
:
2519 /* This symbol requires a global offset table entry. */
2523 sgot
= bfd_get_section_by_name (dynobj
, ".got");
2524 BFD_ASSERT (sgot
!= NULL
);
2528 && (h
!= NULL
|| info
->shared
))
2530 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
2531 if (srelgot
== NULL
)
2533 srelgot
= bfd_make_section (dynobj
, ".rela.got");
2535 || ! bfd_set_section_flags (dynobj
, srelgot
,
2540 | SEC_LINKER_CREATED
2542 || ! bfd_set_section_alignment (dynobj
, srelgot
, 2))
2549 if (h
->type
== STT_DATALABEL
)
2551 struct elf_sh64_link_hash_entry
*hsh
;
2553 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2554 hsh
= (struct elf_sh64_link_hash_entry
*)h
;
2555 if (hsh
->datalabel_got_offset
!= (bfd_vma
) -1)
2558 hsh
->datalabel_got_offset
= sgot
->size
;
2562 if (h
->got
.offset
!= (bfd_vma
) -1)
2564 /* We have already allocated space in the .got. */
2567 h
->got
.offset
= sgot
->size
;
2570 /* Make sure this symbol is output as a dynamic symbol. */
2571 if (h
->dynindx
== -1)
2573 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2577 srelgot
->size
+= sizeof (Elf64_External_Rela
);
2581 /* This is a global offset table entry for a local
2583 if (local_got_offsets
== NULL
)
2586 register unsigned int i
;
2588 size
= symtab_hdr
->sh_info
* sizeof (bfd_vma
);
2589 /* Reserve space for both the datalabel and
2590 codelabel local GOT offsets. */
2592 local_got_offsets
= (bfd_vma
*) bfd_alloc (abfd
, size
);
2593 if (local_got_offsets
== NULL
)
2595 elf_local_got_offsets (abfd
) = local_got_offsets
;
2596 for (i
= 0; i
< symtab_hdr
->sh_info
; i
++)
2597 local_got_offsets
[i
] = (bfd_vma
) -1;
2598 for (; i
< 2 * symtab_hdr
->sh_info
; i
++)
2599 local_got_offsets
[i
] = (bfd_vma
) -1;
2601 if ((rel
->r_addend
& 1) != 0)
2603 if (local_got_offsets
[symtab_hdr
->sh_info
2604 + r_symndx
] != (bfd_vma
) -1)
2606 /* We have already allocated space in the .got. */
2609 local_got_offsets
[symtab_hdr
->sh_info
2610 + r_symndx
] = sgot
->size
;
2614 if (local_got_offsets
[r_symndx
] != (bfd_vma
) -1)
2616 /* We have already allocated space in the .got. */
2619 local_got_offsets
[r_symndx
] = sgot
->size
;
2624 /* If we are generating a shared object, we need to
2625 output a R_SH_RELATIVE reloc so that the dynamic
2626 linker can adjust this GOT entry. */
2627 srelgot
->size
+= sizeof (Elf64_External_Rela
);
2635 case R_SH_GOTPLT_LOW16
:
2636 case R_SH_GOTPLT_MEDLOW16
:
2637 case R_SH_GOTPLT_MEDHI16
:
2638 case R_SH_GOTPLT_HI16
:
2639 case R_SH_GOTPLT10BY4
:
2640 case R_SH_GOTPLT10BY8
:
2641 /* If this is a local symbol, we resolve it directly without
2642 creating a procedure linkage table entry. */
2645 || ELF_ST_VISIBILITY (h
->other
) == STV_INTERNAL
2646 || ELF_ST_VISIBILITY (h
->other
) == STV_HIDDEN
2650 || h
->got
.offset
!= (bfd_vma
) -1)
2653 /* Make sure this symbol is output as a dynamic symbol. */
2654 if (h
->dynindx
== -1)
2656 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2664 case R_SH_PLT_LOW16
:
2665 case R_SH_PLT_MEDLOW16
:
2666 case R_SH_PLT_MEDHI16
:
2668 /* This symbol requires a procedure linkage table entry. We
2669 actually build the entry in adjust_dynamic_symbol,
2670 because this might be a case of linking PIC code which is
2671 never referenced by a dynamic object, in which case we
2672 don't need to generate a procedure linkage table entry
2675 /* If this is a local symbol, we resolve it directly without
2676 creating a procedure linkage table entry. */
2680 if (ELF_ST_VISIBILITY (h
->other
) == STV_INTERNAL
2681 || ELF_ST_VISIBILITY (h
->other
) == STV_HIDDEN
)
2693 /* If we are creating a shared library, and this is a reloc
2694 against a global symbol, or a non PC relative reloc
2695 against a local symbol, then we need to copy the reloc
2696 into the shared library. However, if we are linking with
2697 -Bsymbolic, we do not need to copy a reloc against a
2698 global symbol which is defined in an object we are
2699 including in the link (i.e., DEF_REGULAR is set). At
2700 this point we have not seen all the input files, so it is
2701 possible that DEF_REGULAR is not set now but will be set
2702 later (it is never cleared). We account for that
2703 possibility below by storing information in the
2704 pcrel_relocs_copied field of the hash table entry. */
2706 && (sec
->flags
& SEC_ALLOC
) != 0
2707 && (ELF32_R_TYPE (rel
->r_info
) != R_SH_64_PCREL
2709 && (! info
->symbolic
2710 || !h
->def_regular
))))
2712 /* When creating a shared object, we must copy these
2713 reloc types into the output file. We create a reloc
2714 section in dynobj and make room for this reloc. */
2719 name
= (bfd_elf_string_from_elf_section
2721 elf_elfheader (abfd
)->e_shstrndx
,
2722 elf_section_data (sec
)->rel_hdr
.sh_name
));
2726 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
2727 && strcmp (bfd_get_section_name (abfd
, sec
),
2730 sreloc
= bfd_get_section_by_name (dynobj
, name
);
2735 sreloc
= bfd_make_section (dynobj
, name
);
2736 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
2737 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
2738 if ((sec
->flags
& SEC_ALLOC
) != 0)
2739 flags
|= SEC_ALLOC
| SEC_LOAD
;
2741 || ! bfd_set_section_flags (dynobj
, sreloc
, flags
)
2742 || ! bfd_set_section_alignment (dynobj
, sreloc
, 2))
2747 sreloc
->size
+= sizeof (Elf64_External_Rela
);
2749 /* If we are linking with -Bsymbolic, and this is a
2750 global symbol, we count the number of PC relative
2751 relocations we have entered for this symbol, so that
2752 we can discard them again if the symbol is later
2753 defined by a regular object. Note that this function
2754 is only called if we are using an elf_sh linker
2755 hash table, which means that h is really a pointer to
2756 an elf_sh_link_hash_entry. */
2757 if (h
!= NULL
&& info
->symbolic
2758 && ELF64_R_TYPE (rel
->r_info
) == R_SH_64_PCREL
)
2760 struct elf_sh64_link_hash_entry
*eh
;
2761 struct elf_sh64_pcrel_relocs_copied
*p
;
2763 eh
= (struct elf_sh64_link_hash_entry
*) h
;
2765 for (p
= eh
->pcrel_relocs_copied
; p
!= NULL
; p
= p
->next
)
2766 if (p
->section
== sreloc
)
2771 p
= ((struct elf_sh64_pcrel_relocs_copied
*)
2772 bfd_alloc (dynobj
, sizeof *p
));
2775 p
->next
= eh
->pcrel_relocs_copied
;
2776 eh
->pcrel_relocs_copied
= p
;
2777 p
->section
= sreloc
;
2793 sh64_elf64_get_symbol_type (Elf_Internal_Sym
* elf_sym
, int type
)
2795 if (ELF_ST_TYPE (elf_sym
->st_info
) == STT_DATALABEL
)
2796 return STT_DATALABEL
;
2801 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2802 Either file can presumably exist without the other, but do not differ
2803 in elf-size-ness. How to share?
2805 Hook called by the linker routine which adds symbols from an object
2806 file. We must make indirect symbols for undefined symbols marked with
2807 STT_DATALABEL, so relocations passing them will pick up that attribute
2808 and neutralize STO_SH5_ISA32 found on the symbol definition.
2810 There is a problem, though: We want to fill in the hash-table entry for
2811 this symbol and signal to the caller that no further processing is
2812 needed. But we don't have the index for this hash-table entry. We
2813 rely here on that the current entry is the first hash-entry with NULL,
2814 which seems brittle. Also, iterating over the hash-table to find that
2815 entry is a linear operation on the number of symbols in this input
2816 file, and this function should take constant time, so that's not good
2817 too. Only comfort is that DataLabel references should only be found in
2818 hand-written assembly code and thus be rare. FIXME: Talk maintainers
2819 into adding an option to elf_add_symbol_hook (preferably) for the index
2820 or the hash entry, alternatively adding the index to Elf_Internal_Sym
2824 sh64_elf64_add_symbol_hook (bfd
*abfd
, struct bfd_link_info
*info
,
2825 Elf_Internal_Sym
*sym
, const char **namep
,
2826 flagword
*flagsp ATTRIBUTE_UNUSED
,
2827 asection
**secp
, bfd_vma
*valp
)
2829 /* We want to do this for relocatable as well as final linking. */
2830 if (ELF_ST_TYPE (sym
->st_info
) == STT_DATALABEL
2831 && is_elf_hash_table (info
->hash
))
2833 struct elf_link_hash_entry
*h
;
2835 /* For relocatable links, we register the DataLabel sym in its own
2836 right, and tweak the name when it's output. Otherwise, we make
2837 an indirect symbol of it. */
2839 = info
->relocatable
|| info
->emitrelocations
2840 ? BSF_GLOBAL
: BSF_GLOBAL
| BSF_INDIRECT
;
2843 = bfd_malloc (strlen (*namep
) + sizeof (DATALABEL_SUFFIX
));
2844 struct elf_link_hash_entry
** sym_hash
= elf_sym_hashes (abfd
);
2846 BFD_ASSERT (sym_hash
!= NULL
);
2848 /* Allocation may fail. */
2849 if (dl_name
== NULL
)
2852 strcpy (dl_name
, *namep
);
2853 strcat (dl_name
, DATALABEL_SUFFIX
);
2855 h
= (struct elf_link_hash_entry
*)
2856 bfd_link_hash_lookup (info
->hash
, dl_name
, FALSE
, FALSE
, FALSE
);
2860 /* No previous datalabel symbol. Make one. */
2861 struct bfd_link_hash_entry
*bh
= NULL
;
2862 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2864 if (! _bfd_generic_link_add_one_symbol (info
, abfd
, dl_name
,
2865 flags
, *secp
, *valp
,
2873 h
= (struct elf_link_hash_entry
*) bh
;
2875 h
->type
= STT_DATALABEL
;
2878 /* If a new symbol was created, it holds the allocated name.
2879 Otherwise, we don't need it anymore and should deallocate it. */
2882 if (h
->type
!= STT_DATALABEL
2883 || ((info
->relocatable
|| info
->emitrelocations
)
2884 && h
->root
.type
!= bfd_link_hash_undefined
)
2885 || (! info
->relocatable
&& !info
->emitrelocations
2886 && h
->root
.type
!= bfd_link_hash_indirect
))
2888 /* Make sure we don't get confused on invalid input. */
2889 (*_bfd_error_handler
)
2890 (_("%s: encountered datalabel symbol in input"),
2891 bfd_get_filename (abfd
));
2892 bfd_set_error (bfd_error_bad_value
);
2896 /* Now find the hash-table slot for this entry and fill it in. */
2897 while (*sym_hash
!= NULL
)
2901 /* Signal to caller to skip this symbol - we've handled it. */
2908 /* This hook function is called before the linker writes out a global
2909 symbol. For relocatable links, DataLabel symbols will be present in
2910 linker output. We cut off the special suffix on those symbols, so the
2911 right name appears in the output.
2913 When linking and emitting relocations, there can appear global symbols
2914 that are not referenced by relocs, but rather only implicitly through
2915 DataLabel references, a relation that is not visible to the linker.
2916 Since no stripping of global symbols in done when doing such linking,
2917 we don't need to look up and make sure to emit the main symbol for each
2918 DataLabel symbol. */
2921 sh64_elf64_link_output_symbol_hook (struct bfd_link_info
*info
,
2923 Elf_Internal_Sym
*sym
,
2924 asection
*input_sec ATTRIBUTE_UNUSED
,
2925 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
2927 char *name
= (char *) cname
;
2929 if (info
->relocatable
|| info
->emitrelocations
)
2931 if (ELF_ST_TYPE (sym
->st_info
) == STT_DATALABEL
)
2932 name
[strlen (name
) - strlen (DATALABEL_SUFFIX
)] = 0;
2938 /* Set bit 0 on the entry address; it always points to SHmedia code. This
2939 is mostly for symmetry with the 32-bit format, where code can be
2940 SHcompact and we need to make a distinction to make sure execution
2941 starts in the right ISA mode. It is also convenient for a loader,
2942 which would otherwise have to set this bit when loading a TR register
2943 before jumping to the program entry. */
2946 sh64_elf64_final_write_processing (bfd
*abfd
,
2947 bfd_boolean linker ATTRIBUTE_UNUSED
)
2949 /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
2950 numerically, but we currently lack the infrastructure to recognize
2951 that: The entry symbol, and info whether it is numeric or a symbol
2952 name is kept private in the linker. */
2953 if (elf_elfheader (abfd
)->e_type
== ET_EXEC
)
2954 elf_elfheader (abfd
)->e_entry
|= 1;
2957 /* First entry in an absolute procedure linkage table look like this. */
2959 static const bfd_byte elf_sh64_plt0_entry_be
[PLT_ENTRY_SIZE
] =
2961 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 48, r17 */
2962 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
2963 0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
2964 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
2965 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
2966 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2967 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
2968 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2969 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2970 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2971 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2972 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2973 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2974 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2975 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2976 0x6f, 0xf0, 0xff, 0xf0, /* nop */
2979 static const bfd_byte elf_sh64_plt0_entry_le
[PLT_ENTRY_SIZE
] =
2981 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
2982 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
2983 0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
2984 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
2985 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
2986 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2987 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
2988 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2989 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2990 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2991 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2992 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2993 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2994 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2995 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2996 0xf0, 0xff, 0xf0, 0x6f, /* nop */
2999 /* Sebsequent entries in an absolute procedure linkage table look like
3002 static const bfd_byte elf_sh64_plt_entry_be
[PLT_ENTRY_SIZE
] =
3004 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 48, r25 */
3005 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
3006 0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
3007 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
3008 0x8d, 0x90, 0x01, 0x90, /* ld.q r25, 0, r25 */
3009 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3010 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3011 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3012 0xcc, 0x00, 0x01, 0x90, /* movi (.+8-.PLT0) >> 16, r25 */
3013 0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
3014 0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
3015 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3016 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3017 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3018 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3019 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3022 static const bfd_byte elf_sh64_plt_entry_le
[PLT_ENTRY_SIZE
] =
3024 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
3025 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3026 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3027 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3028 0x90, 0x01, 0x90, 0x8d, /* ld.q r25, 0, r25 */
3029 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3030 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3031 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3032 0x90, 0x01, 0x00, 0xcc, /* movi (.+8-.PLT0) >> 16, r25 */
3033 0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
3034 0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
3035 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3036 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3037 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3038 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3039 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3042 /* Entries in a PIC procedure linkage table look like this. */
3044 static const bfd_byte elf_sh64_pic_plt_entry_be
[PLT_ENTRY_SIZE
] =
3046 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
3047 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
3048 0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
3049 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3050 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3051 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3052 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3053 0x6f, 0xf0, 0xff, 0xf0, /* nop */
3054 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
3055 0x00, 0xc9, 0x45, 0x10, /* add r12, r17, r17 */
3056 0x8d, 0x10, 0x09, 0x90, /* ld.q r17, 16, r25 */
3057 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3058 0x8d, 0x10, 0x05, 0x10, /* ld.q r17, 8, r17 */
3059 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
3060 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3061 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3064 static const bfd_byte elf_sh64_pic_plt_entry_le
[PLT_ENTRY_SIZE
] =
3066 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
3067 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3068 0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
3069 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3070 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3071 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3072 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3073 0xf0, 0xff, 0xf0, 0x6f, /* nop */
3074 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
3075 0x10, 0x45, 0xc9, 0x00, /* add r12, r17, r17 */
3076 0x90, 0x09, 0x10, 0x8d, /* ld.q r17, 16, r25 */
3077 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3078 0x10, 0x05, 0x10, 0x8d, /* ld.q r17, 8, r17 */
3079 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
3080 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3081 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3084 static const bfd_byte
*elf_sh64_plt0_entry
;
3085 static const bfd_byte
*elf_sh64_plt_entry
;
3086 static const bfd_byte
*elf_sh64_pic_plt_entry
;
3088 /* Create an entry in an sh ELF linker hash table. */
3090 static struct bfd_hash_entry
*
3091 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry
*entry
,
3092 struct bfd_hash_table
*table
,
3095 struct elf_sh64_link_hash_entry
*ret
=
3096 (struct elf_sh64_link_hash_entry
*) entry
;
3098 /* Allocate the structure if it has not already been allocated by a
3100 if (ret
== (struct elf_sh64_link_hash_entry
*) NULL
)
3101 ret
= ((struct elf_sh64_link_hash_entry
*)
3102 bfd_hash_allocate (table
,
3103 sizeof (struct elf_sh64_link_hash_entry
)));
3104 if (ret
== (struct elf_sh64_link_hash_entry
*) NULL
)
3105 return (struct bfd_hash_entry
*) ret
;
3107 /* Call the allocation method of the superclass. */
3108 ret
= ((struct elf_sh64_link_hash_entry
*)
3109 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
3111 if (ret
!= (struct elf_sh64_link_hash_entry
*) NULL
)
3113 ret
->pcrel_relocs_copied
= NULL
;
3114 ret
->datalabel_got_offset
= (bfd_vma
) -1;
3117 return (struct bfd_hash_entry
*) ret
;
3120 /* Create an sh64 ELF linker hash table. */
3122 static struct bfd_link_hash_table
*
3123 sh64_elf64_link_hash_table_create (bfd
*abfd
)
3125 struct elf_sh64_link_hash_table
*ret
;
3127 ret
= ((struct elf_sh64_link_hash_table
*)
3128 bfd_malloc (sizeof (struct elf_sh64_link_hash_table
)));
3129 if (ret
== (struct elf_sh64_link_hash_table
*) NULL
)
3132 if (! _bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
3133 sh64_elf64_link_hash_newfunc
))
3139 return &ret
->root
.root
;
3143 movi_shori_putval (bfd
*output_bfd
, unsigned long value
, bfd_byte
*addr
)
3145 bfd_put_32 (output_bfd
,
3146 bfd_get_32 (output_bfd
, addr
)
3147 | ((value
>> 6) & 0x3fffc00),
3149 bfd_put_32 (output_bfd
,
3150 bfd_get_32 (output_bfd
, addr
+ 4)
3151 | ((value
<< 10) & 0x3fffc00),
3156 movi_3shori_putval (bfd
*output_bfd
, bfd_vma value
, bfd_byte
*addr
)
3158 bfd_put_32 (output_bfd
,
3159 bfd_get_32 (output_bfd
, addr
)
3160 | ((value
>> 38) & 0x3fffc00),
3162 bfd_put_32 (output_bfd
,
3163 bfd_get_32 (output_bfd
, addr
+ 4)
3164 | ((value
>> 22) & 0x3fffc00),
3166 bfd_put_32 (output_bfd
,
3167 bfd_get_32 (output_bfd
, addr
+ 8)
3168 | ((value
>> 6) & 0x3fffc00),
3170 bfd_put_32 (output_bfd
,
3171 bfd_get_32 (output_bfd
, addr
+ 12)
3172 | ((value
<< 10) & 0x3fffc00),
3176 /* Create dynamic sections when linking against a dynamic object. */
3179 sh64_elf64_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
3181 flagword flags
, pltflags
;
3182 register asection
*s
;
3183 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
3186 switch (bed
->s
->arch_size
)
3197 bfd_set_error (bfd_error_bad_value
);
3201 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3202 .rel[a].bss sections. */
3204 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
3205 | SEC_LINKER_CREATED
);
3208 pltflags
|= SEC_CODE
;
3209 if (bed
->plt_not_loaded
)
3210 pltflags
&= ~ (SEC_LOAD
| SEC_HAS_CONTENTS
);
3211 if (bed
->plt_readonly
)
3212 pltflags
|= SEC_READONLY
;
3214 s
= bfd_make_section (abfd
, ".plt");
3216 || ! bfd_set_section_flags (abfd
, s
, pltflags
)
3217 || ! bfd_set_section_alignment (abfd
, s
, bed
->plt_alignment
))
3220 if (bed
->want_plt_sym
)
3222 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3224 struct elf_link_hash_entry
*h
;
3225 struct bfd_link_hash_entry
*bh
= NULL
;
3227 if (! (_bfd_generic_link_add_one_symbol
3228 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
3229 (bfd_vma
) 0, (const char *) NULL
, FALSE
, bed
->collect
, &bh
)))
3232 h
= (struct elf_link_hash_entry
*) bh
;
3234 h
->type
= STT_OBJECT
;
3237 && ! bfd_elf_link_record_dynamic_symbol (info
, h
))
3241 s
= bfd_make_section (abfd
,
3242 bed
->default_use_rela_p
? ".rela.plt" : ".rel.plt");
3244 || ! bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
3245 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
3248 if (! _bfd_elf_create_got_section (abfd
, info
))
3252 const char *secname
;
3257 for (sec
= abfd
->sections
; sec
; sec
= sec
->next
)
3259 secflags
= bfd_get_section_flags (abfd
, sec
);
3260 if ((secflags
& (SEC_DATA
| SEC_LINKER_CREATED
))
3261 || ((secflags
& SEC_HAS_CONTENTS
) != SEC_HAS_CONTENTS
))
3263 secname
= bfd_get_section_name (abfd
, sec
);
3264 relname
= (char *) bfd_malloc (strlen (secname
) + 6);
3265 strcpy (relname
, ".rela");
3266 strcat (relname
, secname
);
3267 s
= bfd_make_section (abfd
, relname
);
3269 || ! bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
3270 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
3275 if (bed
->want_dynbss
)
3277 /* The .dynbss section is a place to put symbols which are defined
3278 by dynamic objects, are referenced by regular objects, and are
3279 not functions. We must allocate space for them in the process
3280 image and use a R_*_COPY reloc to tell the dynamic linker to
3281 initialize them at run time. The linker script puts the .dynbss
3282 section into the .bss section of the final image. */
3283 s
= bfd_make_section (abfd
, ".dynbss");
3285 || ! bfd_set_section_flags (abfd
, s
, SEC_ALLOC
))
3288 /* The .rel[a].bss section holds copy relocs. This section is not
3289 normally needed. We need to create it here, though, so that the
3290 linker will map it to an output section. We can't just create it
3291 only if we need it, because we will not know whether we need it
3292 until we have seen all the input files, and the first time the
3293 main linker code calls BFD after examining all the input files
3294 (size_dynamic_sections) the input sections have already been
3295 mapped to the output sections. If the section turns out not to
3296 be needed, we can discard it later. We will never need this
3297 section when generating a shared object, since they do not use
3301 s
= bfd_make_section (abfd
,
3302 (bed
->default_use_rela_p
3303 ? ".rela.bss" : ".rel.bss"));
3305 || ! bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
3306 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
3314 /* Adjust a symbol defined by a dynamic object and referenced by a
3315 regular object. The current definition is in some section of the
3316 dynamic object, but we're not including those sections. We have to
3317 change the definition to something the rest of the link can
3321 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info
*info
,
3322 struct elf_link_hash_entry
*h
)
3326 unsigned int power_of_two
;
3328 dynobj
= elf_hash_table (info
)->dynobj
;
3330 /* Make sure we know what is going on here. */
3331 BFD_ASSERT (dynobj
!= NULL
3333 || h
->u
.weakdef
!= NULL
3336 && !h
->def_regular
)));
3338 /* If this is a function, put it in the procedure linkage table. We
3339 will fill in the contents of the procedure linkage table later,
3340 when we know the address of the .got section. */
3341 if (h
->type
== STT_FUNC
3348 /* This case can occur if we saw a PLT reloc in an input
3349 file, but the symbol was never referred to by a dynamic
3350 object. In such a case, we don't actually need to build
3351 a procedure linkage table, and we can just do a REL64
3353 BFD_ASSERT (h
->needs_plt
);
3357 /* Make sure this symbol is output as a dynamic symbol. */
3358 if (h
->dynindx
== -1)
3360 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
3364 s
= bfd_get_section_by_name (dynobj
, ".plt");
3365 BFD_ASSERT (s
!= NULL
);
3367 /* If this is the first .plt entry, make room for the special
3370 s
->size
+= PLT_ENTRY_SIZE
;
3372 /* If this symbol is not defined in a regular file, and we are
3373 not generating a shared library, then set the symbol to this
3374 location in the .plt. This is required to make function
3375 pointers compare as equal between the normal executable and
3376 the shared library. */
3380 h
->root
.u
.def
.section
= s
;
3381 h
->root
.u
.def
.value
= s
->size
;
3384 h
->plt
.offset
= s
->size
;
3386 /* Make room for this entry. */
3387 s
->size
+= elf_sh64_sizeof_plt (info
);
3389 /* We also need to make an entry in the .got.plt section, which
3390 will be placed in the .got section by the linker script. */
3392 s
= bfd_get_section_by_name (dynobj
, ".got.plt");
3393 BFD_ASSERT (s
!= NULL
);
3396 /* We also need to make an entry in the .rela.plt section. */
3398 s
= bfd_get_section_by_name (dynobj
, ".rela.plt");
3399 BFD_ASSERT (s
!= NULL
);
3400 s
->size
+= sizeof (Elf64_External_Rela
);
3405 /* If this is a weak symbol, and there is a real definition, the
3406 processor independent code will have arranged for us to see the
3407 real definition first, and we can just use the same value. */
3408 if (h
->u
.weakdef
!= NULL
)
3410 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
3411 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
3412 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
3413 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
3417 /* This is a reference to a symbol defined by a dynamic object which
3418 is not a function. */
3420 /* If we are creating a shared library, we must presume that the
3421 only references to the symbol are via the global offset table.
3422 For such cases we need not do anything here; the relocations will
3423 be handled correctly by relocate_section. */
3427 /* If there are no references to this symbol that do not use the
3428 GOT, we don't need to generate a copy reloc. */
3429 if (!h
->non_got_ref
)
3432 /* We must allocate the symbol in our .dynbss section, which will
3433 become part of the .bss section of the executable. There will be
3434 an entry for this symbol in the .dynsym section. The dynamic
3435 object will contain position independent code, so all references
3436 from the dynamic object to this symbol will go through the global
3437 offset table. The dynamic linker will use the .dynsym entry to
3438 determine the address it must put in the global offset table, so
3439 both the dynamic object and the regular object will refer to the
3440 same memory location for the variable. */
3442 s
= bfd_get_section_by_name (dynobj
, ".dynbss");
3443 BFD_ASSERT (s
!= NULL
);
3445 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3446 copy the initial value out of the dynamic object and into the
3447 runtime process image. We need to remember the offset into the
3448 .rela.bss section we are going to use. */
3449 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
3453 srel
= bfd_get_section_by_name (dynobj
, ".rela.bss");
3454 BFD_ASSERT (srel
!= NULL
);
3455 srel
->size
+= sizeof (Elf64_External_Rela
);
3459 /* We need to figure out the alignment required for this symbol. I
3460 have no idea how ELF linkers handle this. */
3461 power_of_two
= bfd_log2 (h
->size
);
3462 if (power_of_two
> 3)
3465 /* Apply the required alignment. */
3466 s
->size
= BFD_ALIGN (s
->size
, (bfd_size_type
) (1 << power_of_two
));
3467 if (power_of_two
> bfd_get_section_alignment (dynobj
, s
))
3469 if (! bfd_set_section_alignment (dynobj
, s
, power_of_two
))
3473 /* Define the symbol as being at this point in the section. */
3474 h
->root
.u
.def
.section
= s
;
3475 h
->root
.u
.def
.value
= s
->size
;
3477 /* Increment the section size to make room for the symbol. */
3483 /* This function is called via sh_elf_link_hash_traverse if we are
3484 creating a shared object with -Bsymbolic. It discards the space
3485 allocated to copy PC relative relocs against symbols which are
3486 defined in regular objects. We allocated space for them in the
3487 check_relocs routine, but we won't fill them in in the
3488 relocate_section routine. */
3491 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry
*h
,
3492 void *ignore ATTRIBUTE_UNUSED
)
3494 struct elf_sh64_pcrel_relocs_copied
*s
;
3496 if (h
->root
.root
.type
== bfd_link_hash_warning
)
3497 h
= (struct elf_sh64_link_hash_entry
*) h
->root
.root
.u
.i
.link
;
3499 /* We only discard relocs for symbols defined in a regular object. */
3500 if (!h
->root
.def_regular
)
3503 for (s
= h
->pcrel_relocs_copied
; s
!= NULL
; s
= s
->next
)
3504 s
->section
->size
-= s
->count
* sizeof (Elf64_External_Rela
);
3509 /* Set the sizes of the dynamic sections. */
3512 sh64_elf64_size_dynamic_sections (bfd
*output_bfd
,
3513 struct bfd_link_info
*info
)
3519 bfd_boolean reltext
;
3521 dynobj
= elf_hash_table (info
)->dynobj
;
3522 BFD_ASSERT (dynobj
!= NULL
);
3524 if (elf_hash_table (info
)->dynamic_sections_created
)
3526 /* Set the contents of the .interp section to the interpreter. */
3527 if (info
->executable
)
3529 s
= bfd_get_section_by_name (dynobj
, ".interp");
3530 BFD_ASSERT (s
!= NULL
);
3531 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
3532 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
3537 /* We may have created entries in the .rela.got section.
3538 However, if we are not creating the dynamic sections, we will
3539 not actually use these entries. Reset the size of .rela.got,
3540 which will cause it to get stripped from the output file
3542 s
= bfd_get_section_by_name (dynobj
, ".rela.got");
3547 /* If this is a -Bsymbolic shared link, then we need to discard all
3548 PC relative relocs against symbols defined in a regular object.
3549 We allocated space for them in the check_relocs routine, but we
3550 will not fill them in in the relocate_section routine. */
3551 if (info
->shared
&& info
->symbolic
)
3552 sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info
),
3553 sh64_elf64_discard_copies
, NULL
);
3555 /* The check_relocs and adjust_dynamic_symbol entry points have
3556 determined the sizes of the various dynamic sections. Allocate
3561 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
3566 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
3569 /* It's OK to base decisions on the section name, because none
3570 of the dynobj section names depend upon the input files. */
3571 name
= bfd_get_section_name (dynobj
, s
);
3575 if (strcmp (name
, ".plt") == 0)
3579 /* Strip this section if we don't need it; see the
3585 /* Remember whether there is a PLT. */
3589 else if (strncmp (name
, ".rela", 5) == 0)
3593 /* If we don't need this section, strip it from the
3594 output file. This is mostly to handle .rela.bss and
3595 .rela.plt. We must create both sections in
3596 create_dynamic_sections, because they must be created
3597 before the linker maps input sections to output
3598 sections. The linker does that before
3599 adjust_dynamic_symbol is called, and it is that
3600 function which decides whether anything needs to go
3601 into these sections. */
3608 /* Remember whether there are any reloc sections other
3610 if (strcmp (name
, ".rela.plt") != 0)
3612 const char *outname
;
3616 /* If this relocation section applies to a read only
3617 section, then we probably need a DT_TEXTREL
3618 entry. The entries in the .rela.plt section
3619 really apply to the .got section, which we
3620 created ourselves and so know is not readonly. */
3621 outname
= bfd_get_section_name (output_bfd
,
3623 target
= bfd_get_section_by_name (output_bfd
, outname
+ 5);
3625 && (target
->flags
& SEC_READONLY
) != 0
3626 && (target
->flags
& SEC_ALLOC
) != 0)
3630 /* We use the reloc_count field as a counter if we need
3631 to copy relocs into the output file. */
3635 else if (strncmp (name
, ".got", 4) != 0)
3637 /* It's not one of our sections, so don't allocate space. */
3643 _bfd_strip_section_from_output (info
, s
);
3647 /* Allocate memory for the section contents. */
3648 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
3649 if (s
->contents
== NULL
&& s
->size
!= 0)
3653 if (elf_hash_table (info
)->dynamic_sections_created
)
3655 /* Add some entries to the .dynamic section. We fill in the
3656 values later, in sh64_elf64_finish_dynamic_sections, but we
3657 must add the entries now so that we get the correct size for
3658 the .dynamic section. The DT_DEBUG entry is filled in by the
3659 dynamic linker and used by the debugger. */
3660 if (info
->executable
)
3662 if (!_bfd_elf_add_dynamic_entry (info
, DT_DEBUG
, 0))
3668 if (!_bfd_elf_add_dynamic_entry (info
, DT_PLTGOT
, 0)
3669 || !_bfd_elf_add_dynamic_entry (info
, DT_PLTRELSZ
, 0)
3670 || !_bfd_elf_add_dynamic_entry (info
, DT_PLTREL
, DT_RELA
)
3671 || !_bfd_elf_add_dynamic_entry (info
, DT_JMPREL
, 0))
3677 if (!_bfd_elf_add_dynamic_entry (info
, DT_RELA
, 0)
3678 || !_bfd_elf_add_dynamic_entry (info
, DT_RELASZ
, 0)
3679 || !_bfd_elf_add_dynamic_entry (info
, DT_RELAENT
,
3680 sizeof (Elf64_External_Rela
)))
3686 if (!_bfd_elf_add_dynamic_entry (info
, DT_TEXTREL
, 0))
3694 /* Finish up dynamic symbol handling. We set the contents of various
3695 dynamic sections here. */
3698 sh64_elf64_finish_dynamic_symbol (bfd
*output_bfd
,
3699 struct bfd_link_info
*info
,
3700 struct elf_link_hash_entry
*h
,
3701 Elf_Internal_Sym
*sym
)
3705 dynobj
= elf_hash_table (info
)->dynobj
;
3707 if (h
->plt
.offset
!= (bfd_vma
) -1)
3715 Elf_Internal_Rela rel
;
3718 /* This symbol has an entry in the procedure linkage table. Set
3721 BFD_ASSERT (h
->dynindx
!= -1);
3723 splt
= bfd_get_section_by_name (dynobj
, ".plt");
3724 sgot
= bfd_get_section_by_name (dynobj
, ".got.plt");
3725 srel
= bfd_get_section_by_name (dynobj
, ".rela.plt");
3726 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srel
!= NULL
);
3728 /* Get the index in the procedure linkage table which
3729 corresponds to this symbol. This is the index of this symbol
3730 in all the symbols for which we are making plt entries. The
3731 first entry in the procedure linkage table is reserved. */
3732 plt_index
= h
->plt
.offset
/ elf_sh64_sizeof_plt (info
) - 1;
3734 /* Get the offset into the .got table of the entry that
3735 corresponds to this function. Each .got entry is 8 bytes.
3736 The first three are reserved. */
3737 got_offset
= (plt_index
+ 3) * 8;
3740 got_offset
-= GOT_BIAS
;
3742 /* Fill in the entry in the procedure linkage table. */
3745 if (elf_sh64_plt_entry
== NULL
)
3747 elf_sh64_plt_entry
= (bfd_big_endian (output_bfd
) ?
3748 elf_sh64_plt_entry_be
: elf_sh64_plt_entry_le
);
3750 memcpy (splt
->contents
+ h
->plt
.offset
, elf_sh64_plt_entry
,
3751 elf_sh64_sizeof_plt (info
));
3752 movi_3shori_putval (output_bfd
,
3753 (sgot
->output_section
->vma
3754 + sgot
->output_offset
3756 (splt
->contents
+ h
->plt
.offset
3757 + elf_sh64_plt_symbol_offset (info
)));
3759 /* Set bottom bit because its for a branch to SHmedia */
3760 movi_shori_putval (output_bfd
,
3762 + elf_sh64_plt_plt0_offset (info
) + 8)
3764 (splt
->contents
+ h
->plt
.offset
3765 + elf_sh64_plt_plt0_offset (info
)));
3769 if (elf_sh64_pic_plt_entry
== NULL
)
3771 elf_sh64_pic_plt_entry
= (bfd_big_endian (output_bfd
) ?
3772 elf_sh64_pic_plt_entry_be
:
3773 elf_sh64_pic_plt_entry_le
);
3775 memcpy (splt
->contents
+ h
->plt
.offset
, elf_sh64_pic_plt_entry
,
3776 elf_sh64_sizeof_plt (info
));
3777 movi_shori_putval (output_bfd
, got_offset
,
3778 (splt
->contents
+ h
->plt
.offset
3779 + elf_sh64_plt_symbol_offset (info
)));
3783 got_offset
+= GOT_BIAS
;
3785 movi_shori_putval (output_bfd
,
3786 plt_index
* sizeof (Elf64_External_Rela
),
3787 (splt
->contents
+ h
->plt
.offset
3788 + elf_sh64_plt_reloc_offset (info
)));
3790 /* Fill in the entry in the global offset table. */
3791 bfd_put_64 (output_bfd
,
3792 (splt
->output_section
->vma
3793 + splt
->output_offset
3795 + elf_sh64_plt_temp_offset (info
)),
3796 sgot
->contents
+ got_offset
);
3798 /* Fill in the entry in the .rela.plt section. */
3799 rel
.r_offset
= (sgot
->output_section
->vma
3800 + sgot
->output_offset
3802 rel
.r_info
= ELF64_R_INFO (h
->dynindx
, R_SH_JMP_SLOT64
);
3804 rel
.r_addend
= GOT_BIAS
;
3805 loc
= srel
->contents
+ plt_index
* sizeof (Elf64_External_Rela
);
3806 bfd_elf64_swap_reloca_out (output_bfd
, &rel
, loc
);
3808 if (!h
->def_regular
)
3810 /* Mark the symbol as undefined, rather than as defined in
3811 the .plt section. Leave the value alone. */
3812 sym
->st_shndx
= SHN_UNDEF
;
3816 if (h
->got
.offset
!= (bfd_vma
) -1)
3820 Elf_Internal_Rela rel
;
3823 /* This symbol has an entry in the global offset table. Set it
3826 sgot
= bfd_get_section_by_name (dynobj
, ".got");
3827 srel
= bfd_get_section_by_name (dynobj
, ".rela.got");
3828 BFD_ASSERT (sgot
!= NULL
&& srel
!= NULL
);
3830 rel
.r_offset
= (sgot
->output_section
->vma
3831 + sgot
->output_offset
3832 + (h
->got
.offset
&~ 1));
3834 /* If this is a -Bsymbolic link, and the symbol is defined
3835 locally, we just want to emit a RELATIVE reloc. Likewise if
3836 the symbol was forced to be local because of a version file.
3837 The entry in the global offset table will already have been
3838 initialized in the relocate_section function. */
3840 && (info
->symbolic
|| h
->dynindx
== -1)
3843 rel
.r_info
= ELF64_R_INFO (0, R_SH_RELATIVE64
);
3844 rel
.r_addend
= (h
->root
.u
.def
.value
3845 + h
->root
.u
.def
.section
->output_section
->vma
3846 + h
->root
.u
.def
.section
->output_offset
);
3850 bfd_put_64 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ h
->got
.offset
);
3851 rel
.r_info
= ELF64_R_INFO (h
->dynindx
, R_SH_GLOB_DAT64
);
3855 loc
= srel
->contents
;
3856 loc
+= srel
->reloc_count
++ * sizeof (Elf64_External_Rela
);
3857 bfd_elf64_swap_reloca_out (output_bfd
, &rel
, loc
);
3863 Elf_Internal_Rela rel
;
3866 /* This symbol needs a copy reloc. Set it up. */
3868 BFD_ASSERT (h
->dynindx
!= -1
3869 && (h
->root
.type
== bfd_link_hash_defined
3870 || h
->root
.type
== bfd_link_hash_defweak
));
3872 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
,
3874 BFD_ASSERT (s
!= NULL
);
3876 rel
.r_offset
= (h
->root
.u
.def
.value
3877 + h
->root
.u
.def
.section
->output_section
->vma
3878 + h
->root
.u
.def
.section
->output_offset
);
3879 rel
.r_info
= ELF64_R_INFO (h
->dynindx
, R_SH_COPY64
);
3882 loc
+= s
->reloc_count
++ * sizeof (Elf64_External_Rela
);
3883 bfd_elf64_swap_reloca_out (output_bfd
, &rel
, loc
);
3886 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3887 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
3888 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
3889 sym
->st_shndx
= SHN_ABS
;
3894 /* Finish up the dynamic sections. */
3897 sh64_elf64_finish_dynamic_sections (bfd
*output_bfd
,
3898 struct bfd_link_info
*info
)
3904 dynobj
= elf_hash_table (info
)->dynobj
;
3906 sgot
= bfd_get_section_by_name (dynobj
, ".got.plt");
3907 BFD_ASSERT (sgot
!= NULL
);
3908 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
3910 if (elf_hash_table (info
)->dynamic_sections_created
)
3913 Elf64_External_Dyn
*dyncon
, *dynconend
;
3915 BFD_ASSERT (sdyn
!= NULL
);
3917 dyncon
= (Elf64_External_Dyn
*) sdyn
->contents
;
3918 dynconend
= (Elf64_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
3919 for (; dyncon
< dynconend
; dyncon
++)
3921 Elf_Internal_Dyn dyn
;
3924 struct elf_link_hash_entry
*h
;
3926 bfd_elf64_swap_dyn_in (dynobj
, dyncon
, &dyn
);
3934 name
= info
->init_function
;
3938 name
= info
->fini_function
;
3940 if (dyn
.d_un
.d_val
!= 0)
3942 h
= elf_link_hash_lookup (elf_hash_table (info
), name
,
3943 FALSE
, FALSE
, TRUE
);
3944 if (h
!= NULL
&& (h
->other
& STO_SH5_ISA32
))
3946 dyn
.d_un
.d_val
|= 1;
3947 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3959 s
= bfd_get_section_by_name (output_bfd
, name
);
3960 BFD_ASSERT (s
!= NULL
);
3961 dyn
.d_un
.d_ptr
= s
->vma
;
3962 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3966 s
= bfd_get_section_by_name (output_bfd
, ".rela.plt");
3967 BFD_ASSERT (s
!= NULL
);
3968 dyn
.d_un
.d_val
= s
->size
;
3969 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3973 /* My reading of the SVR4 ABI indicates that the
3974 procedure linkage table relocs (DT_JMPREL) should be
3975 included in the overall relocs (DT_RELA). This is
3976 what Solaris does. However, UnixWare can not handle
3977 that case. Therefore, we override the DT_RELASZ entry
3978 here to make it not include the JMPREL relocs. Since
3979 the linker script arranges for .rela.plt to follow all
3980 other relocation sections, we don't have to worry
3981 about changing the DT_RELA entry. */
3982 s
= bfd_get_section_by_name (output_bfd
, ".rela.plt");
3984 dyn
.d_un
.d_val
-= s
->size
;
3985 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3990 /* Fill in the first entry in the procedure linkage table. */
3991 splt
= bfd_get_section_by_name (dynobj
, ".plt");
3992 if (splt
&& splt
->size
> 0)
3996 if (elf_sh64_pic_plt_entry
== NULL
)
3998 elf_sh64_pic_plt_entry
= (bfd_big_endian (output_bfd
) ?
3999 elf_sh64_pic_plt_entry_be
:
4000 elf_sh64_pic_plt_entry_le
);
4002 memcpy (splt
->contents
, elf_sh64_pic_plt_entry
,
4003 elf_sh64_sizeof_plt (info
));
4007 if (elf_sh64_plt0_entry
== NULL
)
4009 elf_sh64_plt0_entry
= (bfd_big_endian (output_bfd
) ?
4010 elf_sh64_plt0_entry_be
:
4011 elf_sh64_plt0_entry_le
);
4013 memcpy (splt
->contents
, elf_sh64_plt0_entry
, PLT_ENTRY_SIZE
);
4014 movi_3shori_putval (output_bfd
,
4015 sgot
->output_section
->vma
4016 + sgot
->output_offset
,
4018 + elf_sh64_plt0_gotplt_offset (info
));
4021 /* UnixWare sets the entsize of .plt to 8, although that doesn't
4022 really seem like the right value. */
4023 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
= 8;
4027 /* Fill in the first three entries in the global offset table. */
4031 bfd_put_64 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
4033 bfd_put_64 (output_bfd
,
4034 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
4036 bfd_put_64 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 8);
4037 bfd_put_64 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 16);
4040 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 8;
4045 /* Merge non visibility st_other attribute when the symbol comes from
4046 a dynamic object. */
4048 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry
*h
,
4049 const Elf_Internal_Sym
*isym
,
4050 bfd_boolean definition
,
4051 bfd_boolean dynamic
)
4053 if (isym
->st_other
!= 0 && dynamic
)
4055 unsigned char other
;
4057 /* Take the balance of OTHER from the definition. */
4058 other
= (definition
? isym
->st_other
: h
->other
);
4059 other
&= ~ ELF_ST_VISIBILITY (-1);
4060 h
->other
= other
| ELF_ST_VISIBILITY (h
->other
);
4066 static struct bfd_elf_special_section
const sh64_elf64_special_sections
[]=
4068 { ".cranges", 8, 0, SHT_PROGBITS
, 0 },
4069 { NULL
, 0, 0, 0, 0 }
4072 #define TARGET_BIG_SYM bfd_elf64_sh64_vec
4073 #define TARGET_BIG_NAME "elf64-sh64"
4074 #define TARGET_LITTLE_SYM bfd_elf64_sh64l_vec
4075 #define TARGET_LITTLE_NAME "elf64-sh64l"
4076 #define ELF_ARCH bfd_arch_sh
4077 #define ELF_MACHINE_CODE EM_SH
4078 #define ELF_MAXPAGESIZE 128
4080 #define elf_symbol_leading_char '_'
4082 #define bfd_elf64_bfd_reloc_type_lookup sh_elf64_reloc_type_lookup
4083 #define elf_info_to_howto sh_elf64_info_to_howto
4085 /* Note: there's no relaxation at present. */
4087 #define elf_backend_relocate_section sh_elf64_relocate_section
4088 #define bfd_elf64_bfd_get_relocated_section_contents \
4089 sh_elf64_get_relocated_section_contents
4090 #define elf_backend_object_p sh_elf64_set_mach_from_flags
4091 #define bfd_elf64_bfd_set_private_flags \
4092 sh_elf64_set_private_flags
4093 #define bfd_elf64_bfd_copy_private_bfd_data \
4094 sh_elf64_copy_private_data
4095 #define bfd_elf64_bfd_merge_private_bfd_data \
4096 sh_elf64_merge_private_data
4097 #define elf_backend_fake_sections sh64_elf64_fake_sections
4099 #define elf_backend_gc_mark_hook sh_elf64_gc_mark_hook
4100 #define elf_backend_gc_sweep_hook sh_elf64_gc_sweep_hook
4101 #define elf_backend_check_relocs sh_elf64_check_relocs
4103 #define elf_backend_can_gc_sections 1
4105 #define elf_backend_get_symbol_type sh64_elf64_get_symbol_type
4107 #define elf_backend_add_symbol_hook sh64_elf64_add_symbol_hook
4109 #define elf_backend_link_output_symbol_hook \
4110 sh64_elf64_link_output_symbol_hook
4112 #define elf_backend_merge_symbol_attribute \
4113 sh64_elf64_merge_symbol_attribute
4115 #define elf_backend_final_write_processing \
4116 sh64_elf64_final_write_processing
4118 #define elf_backend_create_dynamic_sections \
4119 sh64_elf64_create_dynamic_sections
4120 #define bfd_elf64_bfd_link_hash_table_create \
4121 sh64_elf64_link_hash_table_create
4122 #define elf_backend_adjust_dynamic_symbol \
4123 sh64_elf64_adjust_dynamic_symbol
4124 #define elf_backend_size_dynamic_sections \
4125 sh64_elf64_size_dynamic_sections
4126 #define elf_backend_finish_dynamic_symbol \
4127 sh64_elf64_finish_dynamic_symbol
4128 #define elf_backend_finish_dynamic_sections \
4129 sh64_elf64_finish_dynamic_sections
4130 #define elf_backend_special_sections sh64_elf64_special_sections
4132 #define elf_backend_want_got_plt 1
4133 #define elf_backend_plt_readonly 1
4134 #define elf_backend_want_plt_sym 0
4135 #define elf_backend_got_header_size 24
4137 #include "elf64-target.h"
4139 /* NetBSD support. */
4140 #undef TARGET_BIG_SYM
4141 #define TARGET_BIG_SYM bfd_elf64_sh64nbsd_vec
4142 #undef TARGET_BIG_NAME
4143 #define TARGET_BIG_NAME "elf64-sh64-nbsd"
4144 #undef TARGET_LITTLE_SYM
4145 #define TARGET_LITTLE_SYM bfd_elf64_sh64lnbsd_vec
4146 #undef TARGET_LITTLE_NAME
4147 #define TARGET_LITTLE_NAME "elf64-sh64l-nbsd"
4148 #undef ELF_MAXPAGESIZE
4149 #define ELF_MAXPAGESIZE 0x10000
4150 #undef elf_symbol_leading_char
4151 #define elf_symbol_leading_char 0
4153 #define elf64_bed elf64_sh64_nbsd_bed
4155 #include "elf64-target.h"
4157 /* Linux support. */
4158 #undef TARGET_BIG_SYM
4159 #define TARGET_BIG_SYM bfd_elf64_sh64blin_vec
4160 #undef TARGET_BIG_NAME
4161 #define TARGET_BIG_NAME "elf64-sh64big-linux"
4162 #undef TARGET_LITTLE_SYM
4163 #define TARGET_LITTLE_SYM bfd_elf64_sh64lin_vec
4164 #undef TARGET_LITTLE_NAME
4165 #define TARGET_LITTLE_NAME "elf64-sh64-linux"
4167 #define INCLUDED_TARGET_FILE
4168 #include "elf64-target.h"