1 /* 32-bit ELF support for TI C6X
3 Free Software Foundation, Inc.
4 Contributed by Joseph Myers <joseph@codesourcery.com>
5 Bernd Schmidt <bernds@codesourcery.com>
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
27 #include "libiberty.h"
29 #include "elf/tic6x.h"
30 #include "elf32-tic6x.h"
32 #define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0"
34 /* DSBT binaries have a default 128K stack. */
35 #define DEFAULT_STACK_SIZE 0x20000
37 /* The size in bytes of an entry in the procedure linkage table. */
38 #define PLT_ENTRY_SIZE 24
40 /* TI C6X ELF linker hash table. */
42 struct elf32_tic6x_link_hash_table
44 struct elf_link_hash_table elf
;
46 /* Short-cuts to get to dynamic linker sections. */
50 /* C6X specific command line arguments. */
51 struct elf32_tic6x_params params
;
53 /* Small local sym cache. */
54 struct sym_cache sym_cache
;
56 /* The output BFD, for convenience. */
59 /* The .dsbt section. */
63 /* Get the TI C6X ELF linker hash table from a link_info structure. */
65 #define elf32_tic6x_hash_table(p) \
66 ((struct elf32_tic6x_link_hash_table *) ((p)->hash))
68 /* TI C6X ELF linker hash entry. */
70 struct elf32_tic6x_link_hash_entry
72 struct elf_link_hash_entry elf
;
74 /* Track dynamic relocs copied for this symbol. */
75 struct elf_dyn_relocs
*dyn_relocs
;
78 struct elf32_tic6x_obj_tdata
80 struct elf_obj_tdata root
;
82 /* Whether to use RELA relocations when generating relocations.
83 This is a per-object flag to allow the assembler to generate REL
84 relocations for use in linker testcases. */
85 bfd_boolean use_rela_p
;
88 #define elf32_tic6x_tdata(abfd) \
89 ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any)
91 #define is_tic6x_elf(bfd) \
92 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
93 && elf_tdata (bfd) != NULL \
94 && elf_object_id (bfd) == TIC6X_ELF_DATA)
96 /* C6X ELF uses two common sections. One is the usual one, and the
97 other is for small objects. All the small objects are kept
98 together, and then referenced via the gp pointer, which yields
99 faster assembler code. This is what we use for the small common
100 section. This approach is copied from ecoff.c. */
101 static asection tic6x_elf_scom_section
;
102 static asymbol tic6x_elf_scom_symbol
;
103 static asymbol
*tic6x_elf_scom_symbol_ptr
;
105 static reloc_howto_type elf32_tic6x_howto_table
[] =
107 HOWTO (R_C6000_NONE
, /* type */
109 0, /* size (0 = byte, 1 = short, 2 = long) */
111 FALSE
, /* pc_relative */
113 complain_overflow_dont
,/* complain_on_overflow */
114 bfd_elf_generic_reloc
, /* special_function */
115 "R_C6000_NONE", /* name */
116 FALSE
, /* partial_inplace */
119 FALSE
), /* pcrel_offset */
120 HOWTO (R_C6000_ABS32
, /* type */
122 2, /* size (0 = byte, 1 = short, 2 = long) */
124 FALSE
, /* pc_relative */
126 complain_overflow_dont
,/* complain_on_overflow */
127 bfd_elf_generic_reloc
, /* special_function */
128 "R_C6000_ABS32", /* name */
129 FALSE
, /* partial_inplace */
131 0xffffffff, /* dst_mask */
132 FALSE
), /* pcrel_offset */
133 HOWTO (R_C6000_ABS16
, /* type */
135 1, /* size (0 = byte, 1 = short, 2 = long) */
137 FALSE
, /* pc_relative */
139 complain_overflow_bitfield
,/* complain_on_overflow */
140 bfd_elf_generic_reloc
, /* special_function */
141 "R_C6000_ABS16", /* name */
142 FALSE
, /* partial_inplace */
144 0x0000ffff, /* dst_mask */
145 FALSE
), /* pcrel_offset */
146 HOWTO (R_C6000_ABS8
, /* type */
148 0, /* size (0 = byte, 1 = short, 2 = long) */
150 FALSE
, /* pc_relative */
152 complain_overflow_bitfield
,/* complain_on_overflow */
153 bfd_elf_generic_reloc
, /* special_function */
154 "R_C6000_ABS8", /* name */
155 FALSE
, /* partial_inplace */
157 0x000000ff, /* dst_mask */
158 FALSE
), /* pcrel_offset */
159 HOWTO (R_C6000_PCR_S21
, /* type */
161 2, /* size (0 = byte, 1 = short, 2 = long) */
163 TRUE
, /* pc_relative */
165 complain_overflow_signed
,/* complain_on_overflow */
166 bfd_elf_generic_reloc
, /* special_function */
167 "R_C6000_PCR_S21", /* name */
168 FALSE
, /* partial_inplace */
170 0x0fffff80, /* dst_mask */
171 TRUE
), /* pcrel_offset */
172 HOWTO (R_C6000_PCR_S12
, /* type */
174 2, /* size (0 = byte, 1 = short, 2 = long) */
176 TRUE
, /* pc_relative */
178 complain_overflow_signed
,/* complain_on_overflow */
179 bfd_elf_generic_reloc
, /* special_function */
180 "R_C6000_PCR_S12", /* name */
181 FALSE
, /* partial_inplace */
183 0x0fff0000, /* dst_mask */
184 TRUE
), /* pcrel_offset */
185 HOWTO (R_C6000_PCR_S10
, /* type */
187 2, /* size (0 = byte, 1 = short, 2 = long) */
189 TRUE
, /* pc_relative */
191 complain_overflow_signed
,/* complain_on_overflow */
192 bfd_elf_generic_reloc
, /* special_function */
193 "R_C6000_PCR_S10", /* name */
194 FALSE
, /* partial_inplace */
196 0x007fe000, /* dst_mask */
197 TRUE
), /* pcrel_offset */
198 HOWTO (R_C6000_PCR_S7
, /* type */
200 2, /* size (0 = byte, 1 = short, 2 = long) */
202 TRUE
, /* pc_relative */
204 complain_overflow_signed
,/* complain_on_overflow */
205 bfd_elf_generic_reloc
, /* special_function */
206 "R_C6000_PCR_S7", /* name */
207 FALSE
, /* partial_inplace */
209 0x007f0000, /* dst_mask */
210 TRUE
), /* pcrel_offset */
211 HOWTO (R_C6000_ABS_S16
, /* type */
213 2, /* size (0 = byte, 1 = short, 2 = long) */
215 FALSE
, /* pc_relative */
217 complain_overflow_signed
,/* complain_on_overflow */
218 bfd_elf_generic_reloc
, /* special_function */
219 "R_C6000_ABS_S16", /* name */
220 FALSE
, /* partial_inplace */
222 0x007fff80, /* dst_mask */
223 FALSE
), /* pcrel_offset */
224 HOWTO (R_C6000_ABS_L16
, /* type */
226 2, /* size (0 = byte, 1 = short, 2 = long) */
228 FALSE
, /* pc_relative */
230 complain_overflow_dont
,/* complain_on_overflow */
231 bfd_elf_generic_reloc
, /* special_function */
232 "R_C6000_ABS_L16", /* name */
233 FALSE
, /* partial_inplace */
235 0x007fff80, /* dst_mask */
236 FALSE
), /* pcrel_offset */
237 HOWTO (R_C6000_ABS_H16
, /* type */
239 2, /* size (0 = byte, 1 = short, 2 = long) */
241 FALSE
, /* pc_relative */
243 complain_overflow_dont
,/* complain_on_overflow */
244 bfd_elf_generic_reloc
, /* special_function */
245 "R_C6000_ABS_H16", /* name */
246 FALSE
, /* partial_inplace */
248 0x007fff80, /* dst_mask */
249 FALSE
), /* pcrel_offset */
250 HOWTO (R_C6000_SBR_U15_B
, /* type */
252 2, /* size (0 = byte, 1 = short, 2 = long) */
254 FALSE
, /* pc_relative */
256 complain_overflow_unsigned
,/* complain_on_overflow */
257 bfd_elf_generic_reloc
, /* special_function */
258 "R_C6000_SBR_U15_B", /* name */
259 FALSE
, /* partial_inplace */
261 0x007fff00, /* dst_mask */
262 FALSE
), /* pcrel_offset */
263 HOWTO (R_C6000_SBR_U15_H
, /* type */
265 2, /* size (0 = byte, 1 = short, 2 = long) */
267 FALSE
, /* pc_relative */
269 complain_overflow_unsigned
,/* complain_on_overflow */
270 bfd_elf_generic_reloc
, /* special_function */
271 "R_C6000_SBR_U15_H", /* name */
272 FALSE
, /* partial_inplace */
274 0x007fff00, /* dst_mask */
275 FALSE
), /* pcrel_offset */
276 HOWTO (R_C6000_SBR_U15_W
, /* type */
278 2, /* size (0 = byte, 1 = short, 2 = long) */
280 FALSE
, /* pc_relative */
282 complain_overflow_unsigned
,/* complain_on_overflow */
283 bfd_elf_generic_reloc
, /* special_function */
284 "R_C6000_SBR_U15_W", /* name */
285 FALSE
, /* partial_inplace */
287 0x007fff00, /* dst_mask */
288 FALSE
), /* pcrel_offset */
289 HOWTO (R_C6000_SBR_S16
, /* type */
291 2, /* size (0 = byte, 1 = short, 2 = long) */
293 FALSE
, /* pc_relative */
295 complain_overflow_signed
,/* complain_on_overflow */
296 bfd_elf_generic_reloc
, /* special_function */
297 "R_C6000_SBR_S16", /* name */
298 FALSE
, /* partial_inplace */
300 0x007fff80, /* dst_mask */
301 FALSE
), /* pcrel_offset */
302 HOWTO (R_C6000_SBR_L16_B
, /* type */
304 2, /* size (0 = byte, 1 = short, 2 = long) */
306 FALSE
, /* pc_relative */
308 complain_overflow_dont
,/* complain_on_overflow */
309 bfd_elf_generic_reloc
, /* special_function */
310 "R_C6000_SBR_L16_B", /* name */
311 FALSE
, /* partial_inplace */
313 0x007fff80, /* dst_mask */
314 FALSE
), /* pcrel_offset */
315 HOWTO (R_C6000_SBR_L16_H
, /* type */
317 2, /* size (0 = byte, 1 = short, 2 = long) */
319 FALSE
, /* pc_relative */
321 complain_overflow_dont
,/* complain_on_overflow */
322 bfd_elf_generic_reloc
, /* special_function */
323 "R_C6000_SBR_L16_H", /* name */
324 FALSE
, /* partial_inplace */
326 0x007fff80, /* dst_mask */
327 FALSE
), /* pcrel_offset */
328 HOWTO (R_C6000_SBR_L16_W
, /* type */
330 2, /* size (0 = byte, 1 = short, 2 = long) */
332 FALSE
, /* pc_relative */
334 complain_overflow_dont
,/* complain_on_overflow */
335 bfd_elf_generic_reloc
, /* special_function */
336 "R_C6000_SBR_L16_W", /* name */
337 FALSE
, /* partial_inplace */
339 0x007fff80, /* dst_mask */
340 FALSE
), /* pcrel_offset */
341 HOWTO (R_C6000_SBR_H16_B
, /* type */
343 2, /* size (0 = byte, 1 = short, 2 = long) */
345 FALSE
, /* pc_relative */
347 complain_overflow_dont
,/* complain_on_overflow */
348 bfd_elf_generic_reloc
, /* special_function */
349 "R_C6000_SBR_H16_B", /* name */
350 FALSE
, /* partial_inplace */
352 0x007fff80, /* dst_mask */
353 FALSE
), /* pcrel_offset */
354 HOWTO (R_C6000_SBR_H16_H
, /* type */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
358 FALSE
, /* pc_relative */
360 complain_overflow_dont
,/* complain_on_overflow */
361 bfd_elf_generic_reloc
, /* special_function */
362 "R_C6000_SBR_H16_H", /* name */
363 FALSE
, /* partial_inplace */
365 0x007fff80, /* dst_mask */
366 FALSE
), /* pcrel_offset */
367 HOWTO (R_C6000_SBR_H16_W
, /* type */
369 2, /* size (0 = byte, 1 = short, 2 = long) */
371 FALSE
, /* pc_relative */
373 complain_overflow_dont
,/* complain_on_overflow */
374 bfd_elf_generic_reloc
, /* special_function */
375 "R_C6000_SBR_H16_W", /* name */
376 FALSE
, /* partial_inplace */
378 0x007fff80, /* dst_mask */
379 FALSE
), /* pcrel_offset */
380 HOWTO (R_C6000_SBR_GOT_U15_W
, /* type */
382 2, /* size (0 = byte, 1 = short, 2 = long) */
384 FALSE
, /* pc_relative */
386 complain_overflow_unsigned
,/* complain_on_overflow */
387 bfd_elf_generic_reloc
, /* special_function */
388 "R_C6000_SBR_GOT_U15_W",/* name */
389 FALSE
, /* partial_inplace */
391 0x007fff00, /* dst_mask */
392 FALSE
), /* pcrel_offset */
393 HOWTO (R_C6000_SBR_GOT_L16_W
, /* type */
395 2, /* size (0 = byte, 1 = short, 2 = long) */
397 FALSE
, /* pc_relative */
399 complain_overflow_dont
,/* complain_on_overflow */
400 bfd_elf_generic_reloc
, /* special_function */
401 "R_C6000_SBR_GOT_L16_W",/* name */
402 FALSE
, /* partial_inplace */
404 0x007fff80, /* dst_mask */
405 FALSE
), /* pcrel_offset */
406 HOWTO (R_C6000_SBR_GOT_H16_W
, /* type */
408 2, /* size (0 = byte, 1 = short, 2 = long) */
410 FALSE
, /* pc_relative */
412 complain_overflow_dont
,/* complain_on_overflow */
413 bfd_elf_generic_reloc
, /* special_function */
414 "R_C6000_SBR_GOT_H16_W",/* name */
415 FALSE
, /* partial_inplace */
417 0x007fff80, /* dst_mask */
418 FALSE
), /* pcrel_offset */
419 HOWTO (R_C6000_DSBT_INDEX
, /* type */
421 2, /* size (0 = byte, 1 = short, 2 = long) */
423 FALSE
, /* pc_relative */
425 complain_overflow_unsigned
,/* complain_on_overflow */
426 bfd_elf_generic_reloc
, /* special_function */
427 "R_C6000_DSBT_INDEX", /* name */
428 FALSE
, /* partial_inplace */
430 0x007fff00, /* dst_mask */
431 FALSE
), /* pcrel_offset */
432 HOWTO (R_C6000_PREL31
, /* type */
434 2, /* size (0 = byte, 1 = short, 2 = long) */
436 TRUE
, /* pc_relative */
438 complain_overflow_dont
,/* complain_on_overflow */
439 bfd_elf_generic_reloc
, /* special_function */
440 "R_C6000_PREL31", /* name */
441 FALSE
, /* partial_inplace */
443 0x7fffffff, /* dst_mask */
444 TRUE
), /* pcrel_offset */
445 HOWTO (R_C6000_COPY
, /* type */
447 2, /* size (0 = byte, 1 = short, 2 = long) */
449 FALSE
, /* pc_relative */
451 complain_overflow_dont
,/* complain_on_overflow */
452 bfd_elf_generic_reloc
, /* special_function */
453 "R_C6000_COPY", /* name */
454 FALSE
, /* partial_inplace */
456 0xffffffff, /* dst_mask */
457 FALSE
), /* pcrel_offset */
458 HOWTO (R_C6000_JUMP_SLOT
, /* type */
460 2, /* size (0 = byte, 1 = short, 2 = long) */
462 FALSE
, /* pc_relative */
464 complain_overflow_dont
,/* complain_on_overflow */
465 bfd_elf_generic_reloc
, /* special_function */
466 "R_C6000_JUMP_SLOT", /* name */
467 FALSE
, /* partial_inplace */
469 0xffffffff, /* dst_mask */
470 FALSE
), /* pcrel_offset */
471 HOWTO (R_C6000_EHTYPE
, /* type */
473 2, /* size (0 = byte, 1 = short, 2 = long) */
475 FALSE
, /* pc_relative */
477 complain_overflow_dont
,/* complain_on_overflow */
478 bfd_elf_generic_reloc
, /* special_function */
479 "R_C6000_EHTYPE", /* name */
480 FALSE
, /* partial_inplace */
482 0xffffffff, /* dst_mask */
483 FALSE
), /* pcrel_offset */
708 HOWTO (R_C6000_ALIGN
, /* type */
710 0, /* size (0 = byte, 1 = short, 2 = long) */
712 FALSE
, /* pc_relative */
714 complain_overflow_dont
,/* complain_on_overflow */
715 bfd_elf_generic_reloc
, /* special_function */
716 "R_C6000_ALIGN", /* name */
717 FALSE
, /* partial_inplace */
720 FALSE
), /* pcrel_offset */
721 HOWTO (R_C6000_FPHEAD
, /* type */
723 0, /* size (0 = byte, 1 = short, 2 = long) */
725 FALSE
, /* pc_relative */
727 complain_overflow_dont
,/* complain_on_overflow */
728 bfd_elf_generic_reloc
, /* special_function */
729 "R_C6000_FPHEAD", /* name */
730 FALSE
, /* partial_inplace */
733 FALSE
), /* pcrel_offset */
734 HOWTO (R_C6000_NOCMP
, /* type */
736 0, /* size (0 = byte, 1 = short, 2 = long) */
738 FALSE
, /* pc_relative */
740 complain_overflow_dont
,/* complain_on_overflow */
741 bfd_elf_generic_reloc
, /* special_function */
742 "R_C6000_NOCMP", /* name */
743 FALSE
, /* partial_inplace */
746 FALSE
) /* pcrel_offset */
749 static reloc_howto_type elf32_tic6x_howto_table_rel
[] =
751 HOWTO (R_C6000_NONE
, /* type */
753 0, /* size (0 = byte, 1 = short, 2 = long) */
755 FALSE
, /* pc_relative */
757 complain_overflow_dont
,/* complain_on_overflow */
758 bfd_elf_generic_reloc
, /* special_function */
759 "R_C6000_NONE", /* name */
760 TRUE
, /* partial_inplace */
763 FALSE
), /* pcrel_offset */
764 HOWTO (R_C6000_ABS32
, /* type */
766 2, /* size (0 = byte, 1 = short, 2 = long) */
768 FALSE
, /* pc_relative */
770 complain_overflow_dont
,/* complain_on_overflow */
771 bfd_elf_generic_reloc
, /* special_function */
772 "R_C6000_ABS32", /* name */
773 TRUE
, /* partial_inplace */
774 0xffffffff, /* src_mask */
775 0xffffffff, /* dst_mask */
776 FALSE
), /* pcrel_offset */
777 HOWTO (R_C6000_ABS16
, /* type */
779 1, /* size (0 = byte, 1 = short, 2 = long) */
781 FALSE
, /* pc_relative */
783 complain_overflow_bitfield
,/* complain_on_overflow */
784 bfd_elf_generic_reloc
, /* special_function */
785 "R_C6000_ABS16", /* name */
786 TRUE
, /* partial_inplace */
787 0x0000ffff, /* src_mask */
788 0x0000ffff, /* dst_mask */
789 FALSE
), /* pcrel_offset */
790 HOWTO (R_C6000_ABS8
, /* type */
792 0, /* size (0 = byte, 1 = short, 2 = long) */
794 FALSE
, /* pc_relative */
796 complain_overflow_bitfield
,/* complain_on_overflow */
797 bfd_elf_generic_reloc
, /* special_function */
798 "R_C6000_ABS8", /* name */
799 TRUE
, /* partial_inplace */
800 0x000000ff, /* src_mask */
801 0x000000ff, /* dst_mask */
802 FALSE
), /* pcrel_offset */
803 HOWTO (R_C6000_PCR_S21
, /* type */
805 2, /* size (0 = byte, 1 = short, 2 = long) */
807 TRUE
, /* pc_relative */
809 complain_overflow_signed
,/* complain_on_overflow */
810 bfd_elf_generic_reloc
, /* special_function */
811 "R_C6000_PCR_S21", /* name */
812 TRUE
, /* partial_inplace */
813 0x0fffff80, /* src_mask */
814 0x0fffff80, /* dst_mask */
815 TRUE
), /* pcrel_offset */
816 HOWTO (R_C6000_PCR_S12
, /* type */
818 2, /* size (0 = byte, 1 = short, 2 = long) */
820 TRUE
, /* pc_relative */
822 complain_overflow_signed
,/* complain_on_overflow */
823 bfd_elf_generic_reloc
, /* special_function */
824 "R_C6000_PCR_S12", /* name */
825 TRUE
, /* partial_inplace */
826 0x0fff0000, /* src_mask */
827 0x0fff0000, /* dst_mask */
828 TRUE
), /* pcrel_offset */
829 HOWTO (R_C6000_PCR_S10
, /* type */
831 2, /* size (0 = byte, 1 = short, 2 = long) */
833 TRUE
, /* pc_relative */
835 complain_overflow_signed
,/* complain_on_overflow */
836 bfd_elf_generic_reloc
, /* special_function */
837 "R_C6000_PCR_S10", /* name */
838 TRUE
, /* partial_inplace */
839 0x007fe000, /* src_mask */
840 0x007fe000, /* dst_mask */
841 TRUE
), /* pcrel_offset */
842 HOWTO (R_C6000_PCR_S7
, /* type */
844 2, /* size (0 = byte, 1 = short, 2 = long) */
846 TRUE
, /* pc_relative */
848 complain_overflow_signed
,/* complain_on_overflow */
849 bfd_elf_generic_reloc
, /* special_function */
850 "R_C6000_PCR_S7", /* name */
851 TRUE
, /* partial_inplace */
852 0x007f0000, /* src_mask */
853 0x007f0000, /* dst_mask */
854 TRUE
), /* pcrel_offset */
855 HOWTO (R_C6000_ABS_S16
, /* 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_C6000_ABS_S16", /* name */
864 TRUE
, /* partial_inplace */
865 0x007fff80, /* src_mask */
866 0x007fff80, /* dst_mask */
867 FALSE
), /* pcrel_offset */
868 HOWTO (R_C6000_ABS_L16
, /* type */
870 2, /* size (0 = byte, 1 = short, 2 = long) */
872 FALSE
, /* pc_relative */
874 complain_overflow_dont
,/* complain_on_overflow */
875 bfd_elf_generic_reloc
, /* special_function */
876 "R_C6000_ABS_L16", /* name */
877 TRUE
, /* partial_inplace */
878 0x007fff80, /* src_mask */
879 0x007fff80, /* dst_mask */
880 FALSE
), /* pcrel_offset */
881 EMPTY_HOWTO (R_C6000_ABS_H16
),
882 HOWTO (R_C6000_SBR_U15_B
, /* type */
884 2, /* size (0 = byte, 1 = short, 2 = long) */
886 FALSE
, /* pc_relative */
888 complain_overflow_unsigned
,/* complain_on_overflow */
889 bfd_elf_generic_reloc
, /* special_function */
890 "R_C6000_SBR_U15_B", /* name */
891 TRUE
, /* partial_inplace */
892 0x007fff00, /* src_mask */
893 0x007fff00, /* dst_mask */
894 FALSE
), /* pcrel_offset */
895 HOWTO (R_C6000_SBR_U15_H
, /* type */
897 2, /* size (0 = byte, 1 = short, 2 = long) */
899 FALSE
, /* pc_relative */
901 complain_overflow_unsigned
,/* complain_on_overflow */
902 bfd_elf_generic_reloc
, /* special_function */
903 "R_C6000_SBR_U15_H", /* name */
904 TRUE
, /* partial_inplace */
905 0x007fff00, /* src_mask */
906 0x007fff00, /* dst_mask */
907 FALSE
), /* pcrel_offset */
908 HOWTO (R_C6000_SBR_U15_W
, /* type */
910 2, /* size (0 = byte, 1 = short, 2 = long) */
912 FALSE
, /* pc_relative */
914 complain_overflow_unsigned
,/* complain_on_overflow */
915 bfd_elf_generic_reloc
, /* special_function */
916 "R_C6000_SBR_U15_W", /* name */
917 TRUE
, /* partial_inplace */
918 0x007fff00, /* src_mask */
919 0x007fff00, /* dst_mask */
920 FALSE
), /* pcrel_offset */
921 HOWTO (R_C6000_SBR_S16
, /* type */
923 2, /* size (0 = byte, 1 = short, 2 = long) */
925 FALSE
, /* pc_relative */
927 complain_overflow_signed
,/* complain_on_overflow */
928 bfd_elf_generic_reloc
, /* special_function */
929 "R_C6000_SBR_S16", /* name */
930 TRUE
, /* partial_inplace */
931 0x007fff80, /* src_mask */
932 0x007fff80, /* dst_mask */
933 FALSE
), /* pcrel_offset */
934 HOWTO (R_C6000_SBR_L16_B
, /* type */
936 2, /* size (0 = byte, 1 = short, 2 = long) */
938 FALSE
, /* pc_relative */
940 complain_overflow_dont
,/* complain_on_overflow */
941 bfd_elf_generic_reloc
, /* special_function */
942 "R_C6000_SBR_L16_B", /* name */
943 TRUE
, /* partial_inplace */
944 0x007fff80, /* src_mask */
945 0x007fff80, /* dst_mask */
946 FALSE
), /* pcrel_offset */
947 HOWTO (R_C6000_SBR_L16_H
, /* type */
949 2, /* size (0 = byte, 1 = short, 2 = long) */
951 FALSE
, /* pc_relative */
953 complain_overflow_dont
,/* complain_on_overflow */
954 bfd_elf_generic_reloc
, /* special_function */
955 "R_C6000_SBR_L16_H", /* name */
956 TRUE
, /* partial_inplace */
957 0x007fff80, /* src_mask */
958 0x007fff80, /* dst_mask */
959 FALSE
), /* pcrel_offset */
960 HOWTO (R_C6000_SBR_L16_W
, /* type */
962 2, /* size (0 = byte, 1 = short, 2 = long) */
964 FALSE
, /* pc_relative */
966 complain_overflow_dont
,/* complain_on_overflow */
967 bfd_elf_generic_reloc
, /* special_function */
968 "R_C6000_SBR_L16_W", /* name */
969 TRUE
, /* partial_inplace */
970 0x007fff80, /* src_mask */
971 0x007fff80, /* dst_mask */
972 FALSE
), /* pcrel_offset */
973 EMPTY_HOWTO (R_C6000_SBR_H16_B
),
974 EMPTY_HOWTO (R_C6000_SBR_H16_H
),
975 EMPTY_HOWTO (R_C6000_SBR_H16_W
),
976 HOWTO (R_C6000_SBR_GOT_U15_W
, /* type */
978 2, /* size (0 = byte, 1 = short, 2 = long) */
980 FALSE
, /* pc_relative */
982 complain_overflow_unsigned
,/* complain_on_overflow */
983 bfd_elf_generic_reloc
, /* special_function */
984 "R_C6000_SBR_GOT_U15_W",/* name */
985 TRUE
, /* partial_inplace */
986 0x007fff00, /* src_mask */
987 0x007fff00, /* dst_mask */
988 FALSE
), /* pcrel_offset */
989 HOWTO (R_C6000_SBR_GOT_L16_W
, /* type */
991 2, /* size (0 = byte, 1 = short, 2 = long) */
993 FALSE
, /* pc_relative */
995 complain_overflow_dont
,/* complain_on_overflow */
996 bfd_elf_generic_reloc
, /* special_function */
997 "R_C6000_SBR_GOT_L16_W",/* name */
998 TRUE
, /* partial_inplace */
999 0x007fff80, /* src_mask */
1000 0x007fff80, /* dst_mask */
1001 FALSE
), /* pcrel_offset */
1002 EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W
),
1003 HOWTO (R_C6000_DSBT_INDEX
, /* type */
1005 2, /* size (0 = byte, 1 = short, 2 = long) */
1007 FALSE
, /* pc_relative */
1009 complain_overflow_unsigned
,/* complain_on_overflow */
1010 bfd_elf_generic_reloc
, /* special_function */
1011 "R_C6000_DSBT_INDEX", /* name */
1012 TRUE
, /* partial_inplace */
1014 0x007fff00, /* dst_mask */
1015 FALSE
), /* pcrel_offset */
1016 HOWTO (R_C6000_PREL31
, /* type */
1018 2, /* size (0 = byte, 1 = short, 2 = long) */
1020 TRUE
, /* pc_relative */
1022 complain_overflow_dont
,/* complain_on_overflow */
1023 bfd_elf_generic_reloc
, /* special_function */
1024 "R_C6000_PREL31", /* name */
1025 TRUE
, /* partial_inplace */
1027 0x7fffffff, /* dst_mask */
1028 TRUE
), /* pcrel_offset */
1029 HOWTO (R_C6000_COPY
, /* type */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1033 FALSE
, /* pc_relative */
1035 complain_overflow_dont
,/* complain_on_overflow */
1036 bfd_elf_generic_reloc
, /* special_function */
1037 "R_C6000_COPY", /* name */
1038 TRUE
, /* partial_inplace */
1040 0xffffffff, /* dst_mask */
1041 FALSE
), /* pcrel_offset */
1042 HOWTO (R_C6000_JUMP_SLOT
, /* type */
1044 2, /* size (0 = byte, 1 = short, 2 = long) */
1046 FALSE
, /* pc_relative */
1048 complain_overflow_dont
,/* complain_on_overflow */
1049 bfd_elf_generic_reloc
, /* special_function */
1050 "R_C6000_JUMP_SLOT", /* name */
1051 FALSE
, /* partial_inplace */
1053 0xffffffff, /* dst_mask */
1054 FALSE
), /* pcrel_offset */
1055 HOWTO (R_C6000_EHTYPE
, /* type */
1057 2, /* size (0 = byte, 1 = short, 2 = long) */
1059 FALSE
, /* pc_relative */
1061 complain_overflow_dont
,/* complain_on_overflow */
1062 bfd_elf_generic_reloc
, /* special_function */
1063 "R_C6000_EHTYPE", /* name */
1064 FALSE
, /* partial_inplace */
1066 0xffffffff, /* dst_mask */
1067 FALSE
), /* pcrel_offset */
1292 HOWTO (R_C6000_ALIGN
, /* type */
1294 0, /* size (0 = byte, 1 = short, 2 = long) */
1296 FALSE
, /* pc_relative */
1298 complain_overflow_dont
,/* complain_on_overflow */
1299 bfd_elf_generic_reloc
, /* special_function */
1300 "R_C6000_ALIGN", /* name */
1301 TRUE
, /* partial_inplace */
1304 FALSE
), /* pcrel_offset */
1305 HOWTO (R_C6000_FPHEAD
, /* type */
1307 0, /* size (0 = byte, 1 = short, 2 = long) */
1309 FALSE
, /* pc_relative */
1311 complain_overflow_dont
,/* complain_on_overflow */
1312 bfd_elf_generic_reloc
, /* special_function */
1313 "R_C6000_FPHEAD", /* name */
1314 TRUE
, /* partial_inplace */
1317 FALSE
), /* pcrel_offset */
1318 HOWTO (R_C6000_NOCMP
, /* type */
1320 0, /* size (0 = byte, 1 = short, 2 = long) */
1322 FALSE
, /* pc_relative */
1324 complain_overflow_dont
,/* complain_on_overflow */
1325 bfd_elf_generic_reloc
, /* special_function */
1326 "R_C6000_NOCMP", /* name */
1327 TRUE
, /* partial_inplace */
1330 FALSE
) /* pcrel_offset */
1333 /* Map BFD relocations to ELF relocations. */
1337 bfd_reloc_code_real_type bfd_reloc_val
;
1338 enum elf_tic6x_reloc_type elf_reloc_val
;
1341 static const tic6x_reloc_map elf32_tic6x_reloc_map
[] =
1343 { BFD_RELOC_NONE
, R_C6000_NONE
},
1344 { BFD_RELOC_32
, R_C6000_ABS32
},
1345 { BFD_RELOC_16
, R_C6000_ABS16
},
1346 { BFD_RELOC_8
, R_C6000_ABS8
},
1347 { BFD_RELOC_C6000_PCR_S21
, R_C6000_PCR_S21
},
1348 { BFD_RELOC_C6000_PCR_S12
, R_C6000_PCR_S12
},
1349 { BFD_RELOC_C6000_PCR_S10
, R_C6000_PCR_S10
},
1350 { BFD_RELOC_C6000_PCR_S7
, R_C6000_PCR_S7
},
1351 { BFD_RELOC_C6000_ABS_S16
, R_C6000_ABS_S16
},
1352 { BFD_RELOC_C6000_ABS_L16
, R_C6000_ABS_L16
},
1353 { BFD_RELOC_C6000_ABS_H16
, R_C6000_ABS_H16
},
1354 { BFD_RELOC_C6000_SBR_U15_B
, R_C6000_SBR_U15_B
},
1355 { BFD_RELOC_C6000_SBR_U15_H
, R_C6000_SBR_U15_H
},
1356 { BFD_RELOC_C6000_SBR_U15_W
, R_C6000_SBR_U15_W
},
1357 { BFD_RELOC_C6000_SBR_S16
, R_C6000_SBR_S16
},
1358 { BFD_RELOC_C6000_SBR_L16_B
, R_C6000_SBR_L16_B
},
1359 { BFD_RELOC_C6000_SBR_L16_H
, R_C6000_SBR_L16_H
},
1360 { BFD_RELOC_C6000_SBR_L16_W
, R_C6000_SBR_L16_W
},
1361 { BFD_RELOC_C6000_SBR_H16_B
, R_C6000_SBR_H16_B
},
1362 { BFD_RELOC_C6000_SBR_H16_H
, R_C6000_SBR_H16_H
},
1363 { BFD_RELOC_C6000_SBR_H16_W
, R_C6000_SBR_H16_W
},
1364 { BFD_RELOC_C6000_SBR_GOT_U15_W
, R_C6000_SBR_GOT_U15_W
},
1365 { BFD_RELOC_C6000_SBR_GOT_L16_W
, R_C6000_SBR_GOT_L16_W
},
1366 { BFD_RELOC_C6000_SBR_GOT_H16_W
, R_C6000_SBR_GOT_H16_W
},
1367 { BFD_RELOC_C6000_DSBT_INDEX
, R_C6000_DSBT_INDEX
},
1368 { BFD_RELOC_C6000_PREL31
, R_C6000_PREL31
},
1369 { BFD_RELOC_C6000_COPY
, R_C6000_COPY
},
1370 { BFD_RELOC_C6000_JUMP_SLOT
, R_C6000_JUMP_SLOT
},
1371 { BFD_RELOC_C6000_EHTYPE
, R_C6000_EHTYPE
},
1372 { BFD_RELOC_C6000_PCR_H16
, R_C6000_PCR_H16
},
1373 { BFD_RELOC_C6000_PCR_L16
, R_C6000_PCR_L16
},
1374 { BFD_RELOC_C6000_ALIGN
, R_C6000_ALIGN
},
1375 { BFD_RELOC_C6000_FPHEAD
, R_C6000_FPHEAD
},
1376 { BFD_RELOC_C6000_NOCMP
, R_C6000_NOCMP
}
1379 static reloc_howto_type
*
1380 elf32_tic6x_reloc_type_lookup (bfd
*abfd
, bfd_reloc_code_real_type code
)
1384 for (i
= 0; i
< ARRAY_SIZE (elf32_tic6x_reloc_map
); i
++)
1385 if (elf32_tic6x_reloc_map
[i
].bfd_reloc_val
== code
)
1387 enum elf_tic6x_reloc_type elf_reloc_val
;
1388 reloc_howto_type
*howto
;
1390 elf_reloc_val
= elf32_tic6x_reloc_map
[i
].elf_reloc_val
;
1391 if (elf32_tic6x_tdata (abfd
)->use_rela_p
)
1392 howto
= &elf32_tic6x_howto_table
[elf_reloc_val
];
1394 howto
= &elf32_tic6x_howto_table_rel
[elf_reloc_val
];
1396 /* Some relocations are RELA-only; do not return them for
1398 if (howto
->name
== NULL
)
1407 static reloc_howto_type
*
1408 elf32_tic6x_reloc_name_lookup (bfd
*abfd
, const char *r_name
)
1410 if (elf32_tic6x_tdata (abfd
)->use_rela_p
)
1414 for (i
= 0; i
< ARRAY_SIZE (elf32_tic6x_howto_table
); i
++)
1415 if (elf32_tic6x_howto_table
[i
].name
!= NULL
1416 && strcasecmp (elf32_tic6x_howto_table
[i
].name
, r_name
) == 0)
1417 return &elf32_tic6x_howto_table
[i
];
1423 for (i
= 0; i
< ARRAY_SIZE (elf32_tic6x_howto_table_rel
); i
++)
1424 if (elf32_tic6x_howto_table_rel
[i
].name
!= NULL
1425 && strcasecmp (elf32_tic6x_howto_table_rel
[i
].name
, r_name
) == 0)
1426 return &elf32_tic6x_howto_table_rel
[i
];
1433 elf32_tic6x_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*bfd_reloc
,
1434 Elf_Internal_Rela
*elf_reloc
)
1436 unsigned int r_type
;
1438 r_type
= ELF32_R_TYPE (elf_reloc
->r_info
);
1439 if (r_type
>= ARRAY_SIZE (elf32_tic6x_howto_table
))
1440 bfd_reloc
->howto
= NULL
;
1442 bfd_reloc
->howto
= &elf32_tic6x_howto_table
[r_type
];
1446 elf32_tic6x_info_to_howto_rel (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*bfd_reloc
,
1447 Elf_Internal_Rela
*elf_reloc
)
1449 unsigned int r_type
;
1451 r_type
= ELF32_R_TYPE (elf_reloc
->r_info
);
1452 if (r_type
>= ARRAY_SIZE (elf32_tic6x_howto_table_rel
))
1453 bfd_reloc
->howto
= NULL
;
1455 bfd_reloc
->howto
= &elf32_tic6x_howto_table_rel
[r_type
];
1459 elf32_tic6x_set_use_rela_p (bfd
*abfd
, bfd_boolean use_rela_p
)
1461 elf32_tic6x_tdata (abfd
)->use_rela_p
= use_rela_p
;
1464 /* Create an entry in a C6X ELF linker hash table. */
1466 static struct bfd_hash_entry
*
1467 elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry
*entry
,
1468 struct bfd_hash_table
*table
,
1471 /* Allocate the structure if it has not already been allocated by a
1475 entry
= bfd_hash_allocate (table
,
1476 sizeof (struct elf32_tic6x_link_hash_entry
));
1481 /* Call the allocation method of the superclass. */
1482 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
1485 struct elf32_tic6x_link_hash_entry
*eh
;
1487 eh
= (struct elf32_tic6x_link_hash_entry
*) entry
;
1488 eh
->dyn_relocs
= NULL
;
1494 /* Create a C6X ELF linker hash table. */
1496 static struct bfd_link_hash_table
*
1497 elf32_tic6x_link_hash_table_create (bfd
*abfd
)
1499 struct elf32_tic6x_link_hash_table
*ret
;
1500 bfd_size_type amt
= sizeof (struct elf32_tic6x_link_hash_table
);
1502 ret
= bfd_malloc (amt
);
1506 if (!_bfd_elf_link_hash_table_init (&ret
->elf
, abfd
,
1507 elf32_tic6x_link_hash_newfunc
,
1508 sizeof (struct elf32_tic6x_link_hash_entry
),
1515 ret
->sym_cache
.abfd
= NULL
;
1517 ret
->elf
.is_relocatable_executable
= 1;
1519 return &ret
->elf
.root
;
1522 /* Destroy a C6X ELF linker hash table. */
1525 elf32_tic6x_link_hash_table_free (struct bfd_link_hash_table
*hash
)
1527 _bfd_generic_link_hash_table_free (hash
);
1530 /* Called to pass PARAMS to the backend. We store them in the hash table
1531 associated with INFO. */
1534 elf32_tic6x_setup (struct bfd_link_info
*info
,
1535 struct elf32_tic6x_params
*params
)
1537 struct elf32_tic6x_link_hash_table
*htab
= elf32_tic6x_hash_table (info
);
1538 htab
->params
= *params
;
1541 /* Determine if we're dealing with a DSBT object. */
1544 elf32_tic6x_using_dsbt (bfd
*abfd
)
1546 return bfd_elf_get_obj_attr_int (abfd
, OBJ_ATTR_PROC
,
1550 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt
1551 sections in DYNOBJ, and set up shortcuts to them in our hash
1555 elf32_tic6x_create_dynamic_sections (bfd
*dynobj
, struct bfd_link_info
*info
)
1557 struct elf32_tic6x_link_hash_table
*htab
;
1560 htab
= elf32_tic6x_hash_table (info
);
1564 if (!_bfd_elf_create_dynamic_sections (dynobj
, info
))
1568 flags
= (SEC_ALLOC
| SEC_LOAD
1569 | SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
1570 htab
->dsbt
= bfd_make_section_anyway_with_flags (dynobj
, ".dsbt",
1572 if (htab
->dsbt
== NULL
1573 || ! bfd_set_section_alignment (dynobj
, htab
->dsbt
, 2)
1574 || ! bfd_set_section_alignment (dynobj
, htab
->elf
.splt
, 5))
1577 htab
->sdynbss
= bfd_get_section_by_name (dynobj
, ".dynbss");
1579 htab
->srelbss
= bfd_get_section_by_name (dynobj
, ".rela.bss");
1582 || (!info
->shared
&& !htab
->srelbss
))
1589 elf32_tic6x_mkobject (bfd
*abfd
)
1593 ret
= bfd_elf_allocate_object (abfd
, sizeof (struct elf32_tic6x_obj_tdata
),
1596 elf32_tic6x_set_use_rela_p (abfd
, TRUE
);
1600 /* Install relocation RELA into section SRELA, incrementing its
1604 elf32_tic6x_install_rela (bfd
*output_bfd
, asection
*srela
,
1605 Elf_Internal_Rela
*rela
)
1608 bfd_vma off
= srela
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1609 loc
= srela
->contents
+ off
;
1610 BFD_ASSERT (off
< srela
->size
);
1611 bfd_elf32_swap_reloca_out (output_bfd
, rela
, loc
);
1614 /* Create a dynamic reloc against the GOT at offset OFFSET. The contents
1615 of the GOT at this offset have been initialized with the relocation. */
1618 elf32_tic6x_make_got_dynreloc (bfd
*output_bfd
,
1619 struct elf32_tic6x_link_hash_table
*htab
,
1620 asection
*sym_sec
, bfd_vma offset
)
1622 asection
*sgot
= htab
->elf
.sgot
;
1623 Elf_Internal_Rela outrel
;
1626 outrel
.r_offset
= sgot
->output_section
->vma
+ sgot
->output_offset
+ offset
;
1627 outrel
.r_addend
= bfd_get_32 (output_bfd
, sgot
->contents
+ offset
);
1628 if (sym_sec
&& sym_sec
->output_section
1629 && ! bfd_is_abs_section (sym_sec
->output_section
)
1630 && ! bfd_is_und_section (sym_sec
->output_section
))
1632 dynindx
= elf_section_data (sym_sec
->output_section
)->dynindx
;
1633 outrel
.r_addend
-= sym_sec
->output_section
->vma
;
1639 outrel
.r_info
= ELF32_R_INFO (dynindx
, R_C6000_ABS32
);
1640 elf32_tic6x_install_rela (output_bfd
, htab
->elf
.srelgot
, &outrel
);
1643 /* Finish up dynamic symbol handling. We set the contents of various
1644 dynamic sections here. */
1647 elf32_tic6x_finish_dynamic_symbol (bfd
* output_bfd
,
1648 struct bfd_link_info
*info
,
1649 struct elf_link_hash_entry
*h
,
1650 Elf_Internal_Sym
* sym
)
1653 struct elf32_tic6x_link_hash_table
*htab
;
1655 htab
= elf32_tic6x_hash_table (info
);
1656 dynobj
= htab
->elf
.dynobj
;
1658 if (h
->plt
.offset
!= (bfd_vma
) -1)
1661 bfd_vma got_section_offset
, got_dp_offset
, rela_offset
;
1662 Elf_Internal_Rela rela
;
1664 asection
*plt
, *gotplt
, *relplt
;
1665 const struct elf_backend_data
*bed
;
1667 bed
= get_elf_backend_data (output_bfd
);
1669 BFD_ASSERT (htab
->elf
.splt
!= NULL
);
1670 plt
= htab
->elf
.splt
;
1671 gotplt
= htab
->elf
.sgotplt
;
1672 relplt
= htab
->elf
.srelplt
;
1674 /* This symbol has an entry in the procedure linkage table. Set
1677 if ((h
->dynindx
== -1
1678 && !((h
->forced_local
|| info
->executable
)
1680 && h
->type
== STT_GNU_IFUNC
))
1686 /* Get the index in the procedure linkage table which
1687 corresponds to this symbol. This is the index of this symbol
1688 in all the symbols for which we are making plt entries. The
1689 first entry in the procedure linkage table is reserved.
1691 Get the offset into the .got table of the entry that
1692 corresponds to this function. Each .got entry is 4 bytes.
1693 The first three are reserved.
1695 For static executables, we don't reserve anything. */
1697 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
- 1;
1698 got_section_offset
= plt_index
+ bed
->got_header_size
/ 4;
1699 got_dp_offset
= got_section_offset
+ htab
->params
.dsbt_size
;
1700 rela_offset
= plt_index
* sizeof (Elf32_External_Rela
);
1702 got_section_offset
*= 4;
1704 /* Fill in the entry in the procedure linkage table. */
1706 /* ldw .d2t2 *+B14($GOT(f)), b2 */
1707 bfd_put_32 (output_bfd
, got_dp_offset
<< 8 | 0x0100006e,
1708 plt
->contents
+ h
->plt
.offset
);
1709 /* mvk .s2 low(rela_offset), b0 */
1710 bfd_put_32 (output_bfd
, (rela_offset
& 0xffff) << 7 | 0x0000002a,
1711 plt
->contents
+ h
->plt
.offset
+ 4);
1712 /* mvkh .s2 high(rela_offset), b0 */
1713 bfd_put_32 (output_bfd
, ((rela_offset
>> 16) & 0xffff) << 7 | 0x0000006a,
1714 plt
->contents
+ h
->plt
.offset
+ 8);
1716 bfd_put_32 (output_bfd
, 0x00002000,
1717 plt
->contents
+ h
->plt
.offset
+ 12);
1719 bfd_put_32 (output_bfd
, 0x00080362,
1720 plt
->contents
+ h
->plt
.offset
+ 16);
1722 bfd_put_32 (output_bfd
, 0x00008000,
1723 plt
->contents
+ h
->plt
.offset
+ 20);
1725 /* Fill in the entry in the global offset table. */
1726 bfd_put_32 (output_bfd
,
1727 (plt
->output_section
->vma
+ plt
->output_offset
),
1728 gotplt
->contents
+ got_section_offset
);
1730 /* Fill in the entry in the .rel.plt section. */
1731 rela
.r_offset
= (gotplt
->output_section
->vma
1732 + gotplt
->output_offset
1733 + got_section_offset
);
1734 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_C6000_JUMP_SLOT
);
1736 loc
= relplt
->contents
+ rela_offset
;
1737 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
1739 if (!h
->def_regular
)
1741 /* Mark the symbol as undefined, rather than as defined in
1742 the .plt section. */
1743 sym
->st_shndx
= SHN_UNDEF
;
1748 if (h
->got
.offset
!= (bfd_vma
) -1)
1753 /* This symbol has an entry in the global offset table.
1756 sgot
= bfd_get_section_by_name (dynobj
, ".got");
1757 srela
= bfd_get_section_by_name (dynobj
, ".rela.got");
1758 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
1760 /* If this is a -Bsymbolic link, and the symbol is defined
1761 locally, we just want to emit a RELATIVE reloc. Likewise if
1762 the symbol was forced to be local because of a version file.
1763 The entry in the global offset table will already have been
1764 initialized in the relocate_section function. */
1767 || h
->dynindx
== -1 || h
->forced_local
) && h
->def_regular
)
1769 asection
*s
= h
->root
.u
.def
.section
;
1770 elf32_tic6x_make_got_dynreloc (output_bfd
, htab
, s
,
1771 h
->got
.offset
& ~(bfd_vma
) 1);
1775 Elf_Internal_Rela outrel
;
1776 bfd_put_32 (output_bfd
, (bfd_vma
) 0,
1777 sgot
->contents
+ (h
->got
.offset
& ~(bfd_vma
) 1));
1778 outrel
.r_offset
= (sgot
->output_section
->vma
1779 + sgot
->output_offset
1780 + (h
->got
.offset
& ~(bfd_vma
) 1));
1781 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_C6000_ABS32
);
1782 outrel
.r_addend
= 0;
1784 elf32_tic6x_install_rela (output_bfd
, srela
, &outrel
);
1790 Elf_Internal_Rela rel
;
1792 /* This symbol needs a copy reloc. Set it up. */
1794 if (h
->dynindx
== -1
1795 || (h
->root
.type
!= bfd_link_hash_defined
1796 && h
->root
.type
!= bfd_link_hash_defweak
)
1797 || htab
->srelbss
== NULL
)
1800 rel
.r_offset
= (h
->root
.u
.def
.value
1801 + h
->root
.u
.def
.section
->output_section
->vma
1802 + h
->root
.u
.def
.section
->output_offset
);
1803 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_C6000_COPY
);
1806 elf32_tic6x_install_rela (output_bfd
, htab
->srelbss
, &rel
);
1809 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1810 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
1811 || h
== elf_hash_table (info
)->hgot
)
1812 sym
->st_shndx
= SHN_ABS
;
1817 /* Update the got entry reference counts for the section being removed. */
1820 elf32_tic6x_gc_sweep_hook (bfd
*abfd
,
1821 struct bfd_link_info
*info
,
1823 const Elf_Internal_Rela
*relocs
)
1825 struct elf32_tic6x_link_hash_table
*htab
;
1826 Elf_Internal_Shdr
*symtab_hdr
;
1827 struct elf_link_hash_entry
**sym_hashes
;
1828 bfd_signed_vma
*local_got_refcounts
;
1829 const Elf_Internal_Rela
*rel
, *relend
;
1831 if (info
->relocatable
)
1834 htab
= elf32_tic6x_hash_table (info
);
1838 elf_section_data (sec
)->local_dynrel
= NULL
;
1840 symtab_hdr
= &elf_symtab_hdr (abfd
);
1841 sym_hashes
= elf_sym_hashes (abfd
);
1842 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1844 relend
= relocs
+ sec
->reloc_count
;
1845 for (rel
= relocs
; rel
< relend
; rel
++)
1847 unsigned long r_symndx
;
1848 unsigned int r_type
;
1849 struct elf_link_hash_entry
*h
= NULL
;
1851 r_symndx
= ELF32_R_SYM (rel
->r_info
);
1852 if (r_symndx
>= symtab_hdr
->sh_info
)
1854 struct elf32_tic6x_link_hash_entry
*eh
;
1855 struct elf_dyn_relocs
**pp
;
1856 struct elf_dyn_relocs
*p
;
1858 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1859 while (h
->root
.type
== bfd_link_hash_indirect
1860 || h
->root
.type
== bfd_link_hash_warning
)
1861 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1862 eh
= (struct elf32_tic6x_link_hash_entry
*) h
;
1864 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
1867 /* Everything must go for SEC. */
1873 r_type
= ELF32_R_TYPE (rel
->r_info
);
1877 case R_C6000_SBR_GOT_U15_W
:
1878 case R_C6000_SBR_GOT_L16_W
:
1879 case R_C6000_SBR_GOT_H16_W
:
1880 case R_C6000_EHTYPE
:
1883 if (h
->got
.refcount
> 0)
1884 h
->got
.refcount
-= 1;
1886 else if (local_got_refcounts
!= NULL
)
1888 if (local_got_refcounts
[r_symndx
] > 0)
1889 local_got_refcounts
[r_symndx
] -= 1;
1901 /* Adjust a symbol defined by a dynamic object and referenced by a
1902 regular object. The current definition is in some section of the
1903 dynamic object, but we're not including those sections. We have to
1904 change the definition to something the rest of the link can
1908 elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1909 struct elf_link_hash_entry
*h
)
1911 struct elf32_tic6x_link_hash_table
*htab
;
1915 dynobj
= elf_hash_table (info
)->dynobj
;
1917 /* Make sure we know what is going on here. */
1918 BFD_ASSERT (dynobj
!= NULL
1920 || h
->u
.weakdef
!= NULL
1921 || (h
->def_dynamic
&& h
->ref_regular
&& !h
->def_regular
)));
1923 /* If this is a function, put it in the procedure linkage table. We
1924 will fill in the contents of the procedure linkage table later,
1925 when we know the address of the .got section. */
1926 if (h
->type
== STT_FUNC
1929 if (h
->plt
.refcount
<= 0
1930 || SYMBOL_CALLS_LOCAL (info
, h
)
1931 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
1932 && h
->root
.type
== bfd_link_hash_undefweak
))
1934 /* This case can occur if we saw a PLT32 reloc in an input
1935 file, but the symbol was never referred to by a dynamic
1936 object, or if all references were garbage collected. In
1937 such a case, we don't actually need to build a procedure
1938 linkage table, and we can just do a PC32 reloc instead. */
1939 h
->plt
.offset
= (bfd_vma
) -1;
1946 /* If this is a weak symbol, and there is a real definition, the
1947 processor independent code will have arranged for us to see the
1948 real definition first, and we can just use the same value. */
1949 if (h
->u
.weakdef
!= NULL
)
1951 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
1952 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
1953 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
1954 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
1955 h
->non_got_ref
= h
->u
.weakdef
->non_got_ref
;
1959 /* This is a reference to a symbol defined by a dynamic object which
1960 is not a function. */
1962 /* If we are creating a shared library, we must presume that the
1963 only references to the symbol are via the global offset table.
1964 For such cases we need not do anything here; the relocations will
1965 be handled correctly by relocate_section. */
1969 /* If there are no references to this symbol that do not use the
1970 GOT, we don't need to generate a copy reloc. */
1971 if (!h
->non_got_ref
)
1974 /* If -z nocopyreloc was given, we won't generate them either. */
1975 if (info
->nocopyreloc
)
1981 htab
= elf32_tic6x_hash_table (info
);
1987 (*_bfd_error_handler
) (_("dynamic variable `%s' is zero size"),
1988 h
->root
.root
.string
);
1992 /* We must allocate the symbol in our .dynbss section, which will
1993 become part of the .bss section of the executable. There will be
1994 an entry for this symbol in the .dynsym section. The dynamic
1995 object will contain position independent code, so all references
1996 from the dynamic object to this symbol will go through the global
1997 offset table. The dynamic linker will use the .dynsym entry to
1998 determine the address it must put in the global offset table, so
1999 both the dynamic object and the regular object will refer to the
2000 same memory location for the variable. */
2002 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
2003 copy the initial value out of the dynamic object and into the
2004 runtime process image. */
2005 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
2007 htab
->srelbss
->size
+= sizeof (Elf32_External_Rela
);
2013 return _bfd_elf_adjust_dynamic_copy (h
, s
);
2017 elf32_tic6x_new_section_hook (bfd
*abfd
, asection
*sec
)
2021 ret
= _bfd_elf_new_section_hook (abfd
, sec
);
2022 sec
->use_rela_p
= elf32_tic6x_tdata (abfd
)->use_rela_p
;
2027 /* Return true if relocation REL against section SEC is a REL rather
2028 than RELA relocation. RELOCS is the first relocation in the
2029 section and ABFD is the bfd that contains SEC. */
2032 elf32_tic6x_rel_relocation_p (bfd
*abfd
, asection
*sec
,
2033 const Elf_Internal_Rela
*relocs
,
2034 const Elf_Internal_Rela
*rel
)
2036 Elf_Internal_Shdr
*rel_hdr
;
2037 const struct elf_backend_data
*bed
;
2039 /* To determine which flavor of relocation this is, we depend on the
2040 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
2041 rel_hdr
= elf_section_data (sec
)->rel
.hdr
;
2042 if (rel_hdr
== NULL
)
2044 bed
= get_elf_backend_data (abfd
);
2045 return ((size_t) (rel
- relocs
)
2046 < NUM_SHDR_ENTRIES (rel_hdr
) * bed
->s
->int_rels_per_ext_rel
);
2049 /* We need dynamic symbols for every section, since segments can
2050 relocate independently. */
2052 elf32_tic6x_link_omit_section_dynsym (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2053 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2056 switch (elf_section_data (p
)->this_hdr
.sh_type
)
2060 /* If sh_type is yet undecided, assume it could be
2061 SHT_PROGBITS/SHT_NOBITS. */
2065 /* There shouldn't be section relative relocations
2066 against any other section. */
2073 elf32_tic6x_relocate_section (bfd
*output_bfd
,
2074 struct bfd_link_info
*info
,
2076 asection
*input_section
,
2078 Elf_Internal_Rela
*relocs
,
2079 Elf_Internal_Sym
*local_syms
,
2080 asection
**local_sections
)
2082 struct elf32_tic6x_link_hash_table
*htab
;
2083 Elf_Internal_Shdr
*symtab_hdr
;
2084 struct elf_link_hash_entry
**sym_hashes
;
2085 bfd_vma
*local_got_offsets
;
2086 Elf_Internal_Rela
*rel
;
2087 Elf_Internal_Rela
*relend
;
2088 bfd_boolean ok
= TRUE
;
2090 htab
= elf32_tic6x_hash_table (info
);
2091 symtab_hdr
= & elf_symtab_hdr (input_bfd
);
2092 sym_hashes
= elf_sym_hashes (input_bfd
);
2093 local_got_offsets
= elf_local_got_offsets (input_bfd
);
2095 relend
= relocs
+ input_section
->reloc_count
;
2097 for (rel
= relocs
; rel
< relend
; rel
++)
2100 unsigned long r_symndx
;
2102 reloc_howto_type
*howto
;
2103 Elf_Internal_Sym
*sym
;
2105 struct elf_link_hash_entry
*h
;
2106 bfd_vma off
, relocation
;
2107 bfd_boolean unresolved_reloc
;
2108 bfd_reloc_status_type r
;
2109 struct bfd_link_hash_entry
*sbh
;
2112 r_type
= ELF32_R_TYPE (rel
->r_info
);
2113 r_symndx
= ELF32_R_SYM (rel
->r_info
);
2115 is_rel
= elf32_tic6x_rel_relocation_p (input_bfd
, input_section
,
2119 elf32_tic6x_info_to_howto_rel (input_bfd
, &bfd_reloc
, rel
);
2121 elf32_tic6x_info_to_howto (input_bfd
, &bfd_reloc
, rel
);
2122 howto
= bfd_reloc
.howto
;
2125 bfd_set_error (bfd_error_bad_value
);
2132 unresolved_reloc
= FALSE
;
2134 if (r_symndx
< symtab_hdr
->sh_info
)
2136 sym
= local_syms
+ r_symndx
;
2137 sec
= local_sections
[r_symndx
];
2138 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
2144 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
2145 r_symndx
, symtab_hdr
, sym_hashes
,
2147 unresolved_reloc
, warned
);
2150 if (sec
!= NULL
&& elf_discarded_section (sec
))
2151 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
2152 rel
, relend
, howto
, contents
);
2154 if (info
->relocatable
)
2158 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
2161 relocation
= sec
->output_offset
+ sym
->st_value
;
2162 r
= _bfd_relocate_contents (howto
, input_bfd
, relocation
,
2163 contents
+ rel
->r_offset
);
2173 case R_C6000_FPHEAD
:
2175 /* No action needed. */
2178 case R_C6000_PCR_S21
:
2179 /* A branch to an undefined weak symbol is turned into a
2180 "b .s2 B3" instruction if the existing insn is of the
2181 form "b .s2 symbol". */
2182 if (h
? h
->root
.type
== bfd_link_hash_undefweak
2183 && (htab
->elf
.splt
== NULL
|| h
->plt
.offset
== (bfd_vma
) -1)
2184 : r_symndx
!= STN_UNDEF
&& bfd_is_und_section (sec
))
2186 unsigned long oldval
;
2187 oldval
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
2189 if ((oldval
& 0x7e) == 0x12)
2191 oldval
&= 0xF0000001;
2192 bfd_put_32 (input_bfd
, oldval
| 0x000c0362,
2193 contents
+ rel
->r_offset
);
2199 case R_C6000_PCR_S12
:
2200 case R_C6000_PCR_S10
:
2201 case R_C6000_PCR_S7
:
2203 && h
->plt
.offset
!= (bfd_vma
) -1
2204 && htab
->elf
.splt
!= NULL
)
2206 relocation
= (htab
->elf
.splt
->output_section
->vma
2207 + htab
->elf
.splt
->output_offset
2211 /* Generic PC-relative handling produces a value relative to
2212 the exact location of the relocation. Adjust it to be
2213 relative to the start of the fetch packet instead. */
2214 relocation
+= (input_section
->output_section
->vma
2215 + input_section
->output_offset
2216 + rel
->r_offset
) & 0x1f;
2217 unresolved_reloc
= FALSE
;
2220 case R_C6000_DSBT_INDEX
:
2221 relocation
= elf32_tic6x_hash_table (info
)->params
.dsbt_index
;
2222 if (!info
->shared
|| relocation
!= 0)
2229 case R_C6000_ABS_S16
:
2230 case R_C6000_ABS_L16
:
2231 case R_C6000_ABS_H16
:
2232 /* When generating a shared object or relocatable executable, these
2233 relocations are copied into the output file to be resolved at
2235 if ((info
->shared
|| elf32_tic6x_using_dsbt (output_bfd
))
2236 && (input_section
->flags
& SEC_ALLOC
)
2238 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2239 || h
->root
.type
!= bfd_link_hash_undefweak
))
2241 Elf_Internal_Rela outrel
;
2242 bfd_boolean skip
, relocate
;
2245 unresolved_reloc
= FALSE
;
2247 sreloc
= elf_section_data (input_section
)->sreloc
;
2248 BFD_ASSERT (sreloc
!= NULL
&& sreloc
->contents
!= NULL
);
2254 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
2256 if (outrel
.r_offset
== (bfd_vma
) -1)
2258 else if (outrel
.r_offset
== (bfd_vma
) -2)
2259 skip
= TRUE
, relocate
= TRUE
;
2260 outrel
.r_offset
+= (input_section
->output_section
->vma
2261 + input_section
->output_offset
);
2264 memset (&outrel
, 0, sizeof outrel
);
2269 || !h
->def_regular
))
2271 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
2272 outrel
.r_addend
= rel
->r_addend
;
2278 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2280 if (bfd_is_abs_section (sec
))
2282 else if (sec
== NULL
|| sec
->owner
== NULL
)
2284 bfd_set_error (bfd_error_bad_value
);
2291 osec
= sec
->output_section
;
2292 indx
= elf_section_data (osec
)->dynindx
;
2293 outrel
.r_addend
-= osec
->vma
;
2294 BFD_ASSERT (indx
!= 0);
2297 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
2300 elf32_tic6x_install_rela (output_bfd
, sreloc
, &outrel
);
2302 /* If this reloc is against an external symbol, we do not want to
2303 fiddle with the addend. Otherwise, we need to include the symbol
2304 value so that it becomes an addend for the dynamic reloc. */
2309 /* Generic logic OK. */
2312 case R_C6000_SBR_U15_B
:
2313 case R_C6000_SBR_U15_H
:
2314 case R_C6000_SBR_U15_W
:
2315 case R_C6000_SBR_S16
:
2316 case R_C6000_SBR_L16_B
:
2317 case R_C6000_SBR_L16_H
:
2318 case R_C6000_SBR_L16_W
:
2319 case R_C6000_SBR_H16_B
:
2320 case R_C6000_SBR_H16_H
:
2321 case R_C6000_SBR_H16_W
:
2322 sbh
= bfd_link_hash_lookup (info
->hash
, "__c6xabi_DSBT_BASE",
2323 FALSE
, FALSE
, TRUE
);
2325 && (sbh
->type
== bfd_link_hash_defined
2326 || sbh
->type
== bfd_link_hash_defweak
))
2328 if (h
? (h
->root
.type
== bfd_link_hash_undefweak
2329 && (htab
->elf
.splt
== NULL
2330 || h
->plt
.offset
== (bfd_vma
) -1))
2331 : r_symndx
!= STN_UNDEF
&& bfd_is_und_section (sec
))
2334 relocation
-= (sbh
->u
.def
.value
2335 + sbh
->u
.def
.section
->output_section
->vma
2336 + sbh
->u
.def
.section
->output_offset
);
2340 (*_bfd_error_handler
) (_("%B: SB-relative relocation but "
2341 "__c6xabi_DSBT_BASE not defined"),
2348 case R_C6000_SBR_GOT_U15_W
:
2349 case R_C6000_SBR_GOT_L16_W
:
2350 case R_C6000_SBR_GOT_H16_W
:
2351 case R_C6000_EHTYPE
:
2352 /* Relocation is to the entry for this symbol in the global
2354 if (htab
->elf
.sgot
== NULL
)
2361 off
= h
->got
.offset
;
2362 dyn
= htab
->elf
.dynamic_sections_created
;
2363 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
)
2365 && SYMBOL_REFERENCES_LOCAL (info
, h
))
2366 || (ELF_ST_VISIBILITY (h
->other
)
2367 && h
->root
.type
== bfd_link_hash_undefweak
))
2369 /* This is actually a static link, or it is a
2370 -Bsymbolic link and the symbol is defined
2371 locally, or the symbol was forced to be local
2372 because of a version file. We must initialize
2373 this entry in the global offset table. Since the
2374 offset must always be a multiple of 4, we use the
2375 least significant bit to record whether we have
2376 initialized it already.
2378 When doing a dynamic link, we create a .rel.got
2379 relocation entry to initialize the value. This
2380 is done in the finish_dynamic_symbol routine. */
2385 bfd_put_32 (output_bfd
, relocation
,
2386 htab
->elf
.sgot
->contents
+ off
);
2389 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
,
2391 && !(ELF_ST_VISIBILITY (h
->other
)
2392 && h
->root
.type
== bfd_link_hash_undefweak
))
2393 elf32_tic6x_make_got_dynreloc (output_bfd
, htab
, sec
,
2398 unresolved_reloc
= FALSE
;
2402 if (local_got_offsets
== NULL
)
2405 off
= local_got_offsets
[r_symndx
];
2407 /* The offset must always be a multiple of 4. We use
2408 the least significant bit to record whether we have
2409 already generated the necessary reloc. */
2414 bfd_put_32 (output_bfd
, relocation
,
2415 htab
->elf
.sgot
->contents
+ off
);
2417 if (info
->shared
|| elf32_tic6x_using_dsbt (output_bfd
))
2418 elf32_tic6x_make_got_dynreloc (output_bfd
, htab
, sec
, off
);
2420 local_got_offsets
[r_symndx
] |= 1;
2424 if (off
>= (bfd_vma
) -2)
2428 relocation
= (htab
->elf
.sgot
->output_section
->vma
2429 + htab
->elf
.sgot
->output_offset
+ off
2430 - htab
->dsbt
->output_section
->vma
2431 - htab
->dsbt
->output_offset
);
2433 relocation
= (htab
->elf
.sgot
->output_section
->vma
2434 + htab
->elf
.sgot
->output_offset
+ off
2435 - htab
->elf
.sgotplt
->output_section
->vma
2436 - htab
->elf
.sgotplt
->output_offset
);
2438 if (rel
->r_addend
!= 0)
2440 /* We can't do anything for a relocation which is against
2441 a symbol *plus offset*. GOT holds relocations for
2442 symbols. Make this an error; the compiler isn't
2443 allowed to pass us these kinds of things. */
2445 (*_bfd_error_handler
)
2446 (_("%B, section %A: relocation %s with non-zero addend %d"
2447 " against local symbol"),
2450 elf32_tic6x_howto_table
[r_type
].name
,
2453 (*_bfd_error_handler
)
2454 (_("%B, section %A: relocation %s with non-zero addend %d"
2455 " against symbol `%s'"),
2458 elf32_tic6x_howto_table
[r_type
].name
,
2460 h
->root
.root
.string
[0] != '\0' ? h
->root
.root
.string
2461 : _("[whose name is lost]"));
2463 bfd_set_error (bfd_error_bad_value
);
2468 case R_C6000_PREL31
:
2470 && h
->plt
.offset
!= (bfd_vma
) -1
2471 && htab
->elf
.splt
!= NULL
)
2473 relocation
= (htab
->elf
.splt
->output_section
->vma
2474 + htab
->elf
.splt
->output_offset
2480 /* Invalid in relocatable object. */
2482 /* Unknown relocation. */
2483 (*_bfd_error_handler
) (_("%B: invalid relocation type %d"),
2489 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
2490 contents
, rel
->r_offset
,
2491 relocation
, rel
->r_addend
);
2494 if (r
== bfd_reloc_ok
2495 && howto
->complain_on_overflow
== complain_overflow_bitfield
)
2497 /* Generic overflow handling accepts cases the ABI says
2498 should be rejected for R_C6000_ABS16 and
2500 bfd_vma value
= (relocation
+ rel
->r_addend
) & 0xffffffff;
2501 bfd_vma sbit
= 1 << (howto
->bitsize
- 1);
2502 bfd_vma sbits
= (-(bfd_vma
) sbit
) & 0xffffffff;
2503 bfd_vma value_sbits
= value
& sbits
;
2505 if (value_sbits
!= 0
2506 && value_sbits
!= sbit
2507 && value_sbits
!= sbits
)
2508 r
= bfd_reloc_overflow
;
2511 if (r
!= bfd_reloc_ok
)
2514 const char *error_message
;
2517 name
= h
->root
.root
.string
;
2520 name
= bfd_elf_string_from_elf_section (input_bfd
,
2521 symtab_hdr
->sh_link
,
2526 name
= bfd_section_name (input_bfd
, sec
);
2531 case bfd_reloc_overflow
:
2532 /* If the overflowing reloc was to an undefined symbol,
2533 we have already printed one error message and there
2534 is no point complaining again. */
2536 h
->root
.type
!= bfd_link_hash_undefined
)
2537 && (!((*info
->callbacks
->reloc_overflow
)
2538 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
2539 (bfd_vma
) 0, input_bfd
, input_section
,
2544 case bfd_reloc_undefined
:
2545 if (!((*info
->callbacks
->undefined_symbol
)
2546 (info
, name
, input_bfd
, input_section
,
2547 rel
->r_offset
, TRUE
)))
2551 case bfd_reloc_outofrange
:
2552 error_message
= _("out of range");
2555 case bfd_reloc_notsupported
:
2556 error_message
= _("unsupported relocation");
2559 case bfd_reloc_dangerous
:
2560 error_message
= _("dangerous relocation");
2564 error_message
= _("unknown error");
2568 BFD_ASSERT (error_message
!= NULL
);
2569 if (!((*info
->callbacks
->reloc_dangerous
)
2570 (info
, error_message
, input_bfd
, input_section
,
2582 /* Look through the relocs for a section during the first phase, and
2583 calculate needed space in the global offset table, procedure linkage
2584 table, and dynamic reloc sections. */
2587 elf32_tic6x_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
2588 asection
*sec
, const Elf_Internal_Rela
*relocs
)
2590 struct elf32_tic6x_link_hash_table
*htab
;
2591 Elf_Internal_Shdr
*symtab_hdr
;
2592 struct elf_link_hash_entry
**sym_hashes
;
2593 const Elf_Internal_Rela
*rel
;
2594 const Elf_Internal_Rela
*rel_end
;
2597 if (info
->relocatable
)
2600 htab
= elf32_tic6x_hash_table (info
);
2601 symtab_hdr
= &elf_symtab_hdr (abfd
);
2602 sym_hashes
= elf_sym_hashes (abfd
);
2604 /* Create dynamic sections for relocatable executables so that we can
2605 copy relocations. */
2606 if (elf32_tic6x_using_dsbt (abfd
)
2607 && ! htab
->elf
.dynamic_sections_created
)
2609 if (! _bfd_elf_link_create_dynamic_sections (abfd
, info
))
2615 rel_end
= relocs
+ sec
->reloc_count
;
2616 for (rel
= relocs
; rel
< rel_end
; rel
++)
2618 unsigned int r_type
;
2619 unsigned long r_symndx
;
2620 struct elf_link_hash_entry
*h
;
2621 Elf_Internal_Sym
*isym
;
2623 r_symndx
= ELF32_R_SYM (rel
->r_info
);
2624 r_type
= ELF32_R_TYPE (rel
->r_info
);
2626 if (r_symndx
>= NUM_SHDR_ENTRIES (symtab_hdr
))
2628 (*_bfd_error_handler
) (_("%B: bad symbol index: %d"),
2634 if (r_symndx
< symtab_hdr
->sh_info
)
2636 /* A local symbol. */
2637 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
2646 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
2647 while (h
->root
.type
== bfd_link_hash_indirect
2648 || h
->root
.type
== bfd_link_hash_warning
)
2649 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2654 case R_C6000_PCR_S21
:
2655 case R_C6000_PREL31
:
2656 /* This symbol requires a procedure linkage table entry. We
2657 actually build the entry in adjust_dynamic_symbol,
2658 because this might be a case of linking PIC code which is
2659 never referenced by a dynamic object, in which case we
2660 don't need to generate a procedure linkage table entry
2663 /* If this is a local symbol, we resolve it directly without
2664 creating a procedure linkage table entry. */
2669 h
->plt
.refcount
+= 1;
2672 case R_C6000_SBR_GOT_U15_W
:
2673 case R_C6000_SBR_GOT_L16_W
:
2674 case R_C6000_SBR_GOT_H16_W
:
2675 case R_C6000_EHTYPE
:
2676 /* This symbol requires a global offset table entry. */
2679 h
->got
.refcount
+= 1;
2683 bfd_signed_vma
*local_got_refcounts
;
2685 /* This is a global offset table entry for a local symbol. */
2686 local_got_refcounts
= elf_local_got_refcounts (abfd
);
2687 if (local_got_refcounts
== NULL
)
2691 size
= symtab_hdr
->sh_info
;
2692 size
*= (sizeof (bfd_signed_vma
)
2693 + sizeof (bfd_vma
) + sizeof(char));
2694 local_got_refcounts
= bfd_zalloc (abfd
, size
);
2695 if (local_got_refcounts
== NULL
)
2697 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
2699 local_got_refcounts
[r_symndx
] += 1;
2702 if (htab
->elf
.sgot
== NULL
)
2704 if (htab
->elf
.dynobj
== NULL
)
2705 htab
->elf
.dynobj
= abfd
;
2706 if (!_bfd_elf_create_got_section (htab
->elf
.dynobj
, info
))
2711 case R_C6000_DSBT_INDEX
:
2712 /* We'd like to check for nonzero dsbt_index here, but it's
2713 set up only after check_relocs is called. Instead, we
2714 store the number of R_C6000_DSBT_INDEX relocs in the
2715 pc_count field, and potentially discard the extra space
2716 in elf32_tic6x_allocate_dynrelocs. */
2724 case R_C6000_ABS_S16
:
2725 case R_C6000_ABS_L16
:
2726 case R_C6000_ABS_H16
:
2727 /* If we are creating a shared library, and this is a reloc
2728 against a global symbol, or a non PC relative reloc
2729 against a local symbol, then we need to copy the reloc
2730 into the shared library. However, if we are linking with
2731 -Bsymbolic, we do not need to copy a reloc against a
2732 global symbol which is defined in an object we are
2733 including in the link (i.e., DEF_REGULAR is set). At
2734 this point we have not seen all the input files, so it is
2735 possible that DEF_REGULAR is not set now but will be set
2736 later (it is never cleared). In case of a weak definition,
2737 DEF_REGULAR may be cleared later by a strong definition in
2738 a shared library. We account for that possibility below by
2739 storing information in the relocs_copied field of the hash
2740 table entry. A similar situation occurs when creating
2741 shared libraries and symbol visibility changes render the
2744 If on the other hand, we are creating an executable, we
2745 may need to keep relocations for symbols satisfied by a
2746 dynamic library if we manage to avoid copy relocs for the
2748 if ((info
->shared
|| elf32_tic6x_using_dsbt (abfd
))
2749 && (sec
->flags
& SEC_ALLOC
) != 0)
2751 struct elf_dyn_relocs
*p
;
2752 struct elf_dyn_relocs
**head
;
2754 /* We must copy these reloc types into the output file.
2755 Create a reloc section in dynobj and make room for
2759 if (htab
->elf
.dynobj
== NULL
)
2760 htab
->elf
.dynobj
= abfd
;
2762 sreloc
= _bfd_elf_make_dynamic_reloc_section
2763 (sec
, htab
->elf
.dynobj
, 2, abfd
, /*rela? */ TRUE
);
2769 /* If this is a global symbol, we count the number of
2770 relocations we need for this symbol. */
2773 head
= &((struct elf32_tic6x_link_hash_entry
*) h
)->dyn_relocs
;
2777 /* Track dynamic relocs needed for local syms too.
2778 We really need local syms available to do this
2783 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
2787 vpp
= &elf_section_data (s
)->local_dynrel
;
2788 head
= (struct elf_dyn_relocs
**)vpp
;
2792 if (p
== NULL
|| p
->sec
!= sec
)
2794 bfd_size_type amt
= sizeof *p
;
2795 p
= bfd_alloc (htab
->elf
.dynobj
, amt
);
2806 if (r_type
== R_C6000_DSBT_INDEX
)
2811 case R_C6000_SBR_U15_B
:
2812 case R_C6000_SBR_U15_H
:
2813 case R_C6000_SBR_U15_W
:
2814 case R_C6000_SBR_S16
:
2815 case R_C6000_SBR_L16_B
:
2816 case R_C6000_SBR_L16_H
:
2817 case R_C6000_SBR_L16_W
:
2818 case R_C6000_SBR_H16_B
:
2819 case R_C6000_SBR_H16_H
:
2820 case R_C6000_SBR_H16_W
:
2821 if (h
!= NULL
&& info
->executable
)
2823 /* For B14-relative addresses, we might need a copy
2838 elf32_tic6x_add_symbol_hook (bfd
*abfd
,
2839 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2840 Elf_Internal_Sym
*sym
,
2841 const char **namep ATTRIBUTE_UNUSED
,
2842 flagword
*flagsp ATTRIBUTE_UNUSED
,
2846 switch (sym
->st_shndx
)
2848 case SHN_TIC6X_SCOMMON
:
2849 *secp
= bfd_make_section_old_way (abfd
, ".scommon");
2850 (*secp
)->flags
|= SEC_IS_COMMON
;
2851 *valp
= sym
->st_size
;
2852 bfd_set_section_alignment (abfd
, *secp
, bfd_log2 (sym
->st_value
));
2860 elf32_tic6x_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
, asymbol
*asym
)
2862 elf_symbol_type
*elfsym
;
2864 elfsym
= (elf_symbol_type
*) asym
;
2865 switch (elfsym
->internal_elf_sym
.st_shndx
)
2867 case SHN_TIC6X_SCOMMON
:
2868 if (tic6x_elf_scom_section
.name
== NULL
)
2870 /* Initialize the small common section. */
2871 tic6x_elf_scom_section
.name
= ".scommon";
2872 tic6x_elf_scom_section
.flags
= SEC_IS_COMMON
;
2873 tic6x_elf_scom_section
.output_section
= &tic6x_elf_scom_section
;
2874 tic6x_elf_scom_section
.symbol
= &tic6x_elf_scom_symbol
;
2875 tic6x_elf_scom_section
.symbol_ptr_ptr
= &tic6x_elf_scom_symbol_ptr
;
2876 tic6x_elf_scom_symbol
.name
= ".scommon";
2877 tic6x_elf_scom_symbol
.flags
= BSF_SECTION_SYM
;
2878 tic6x_elf_scom_symbol
.section
= &tic6x_elf_scom_section
;
2879 tic6x_elf_scom_symbol_ptr
= &tic6x_elf_scom_symbol
;
2881 asym
->section
= &tic6x_elf_scom_section
;
2882 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
2888 elf32_tic6x_link_output_symbol_hook (struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2889 const char *name ATTRIBUTE_UNUSED
,
2890 Elf_Internal_Sym
*sym
,
2891 asection
*input_sec
,
2892 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
2894 /* If we see a common symbol, which implies a relocatable link, then
2895 if a symbol was small common in an input file, mark it as small
2896 common in the output file. */
2897 if (sym
->st_shndx
== SHN_COMMON
&& strcmp (input_sec
->name
, ".scommon") == 0)
2898 sym
->st_shndx
= SHN_TIC6X_SCOMMON
;
2904 elf32_tic6x_section_from_bfd_section (bfd
*abfd ATTRIBUTE_UNUSED
,
2908 if (strcmp (bfd_get_section_name (abfd
, sec
), ".scommon") == 0)
2910 *retval
= SHN_TIC6X_SCOMMON
;
2917 /* Allocate space in .plt, .got and associated reloc sections for
2921 elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
2923 struct bfd_link_info
*info
;
2924 struct elf32_tic6x_link_hash_table
*htab
;
2925 struct elf32_tic6x_link_hash_entry
*eh
;
2926 struct elf_dyn_relocs
*p
;
2928 if (h
->root
.type
== bfd_link_hash_indirect
)
2931 if (h
->root
.type
== bfd_link_hash_warning
)
2932 /* When warning symbols are created, they **replace** the "real"
2933 entry in the hash table, thus we never get to see the real
2934 symbol in a hash traversal. So look at it now. */
2935 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2936 eh
= (struct elf32_tic6x_link_hash_entry
*) h
;
2938 info
= (struct bfd_link_info
*) inf
;
2939 htab
= elf32_tic6x_hash_table (info
);
2941 if (htab
->elf
.dynamic_sections_created
&& h
->plt
.refcount
> 0)
2943 /* Make sure this symbol is output as a dynamic symbol.
2944 Undefined weak syms won't yet be marked as dynamic. */
2945 if (h
->dynindx
== -1 && !h
->forced_local
)
2947 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2952 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h
))
2954 asection
*s
= htab
->elf
.splt
;
2956 /* If this is the first .plt entry, make room for the special
2959 s
->size
+= PLT_ENTRY_SIZE
;
2961 h
->plt
.offset
= s
->size
;
2963 /* If this symbol is not defined in a regular file, and we are
2964 not generating a shared library, then set the symbol to this
2965 location in the .plt. This is required to make function
2966 pointers compare as equal between the normal executable and
2967 the shared library. */
2968 if (! info
->shared
&& !h
->def_regular
)
2970 h
->root
.u
.def
.section
= s
;
2971 h
->root
.u
.def
.value
= h
->plt
.offset
;
2974 /* Make room for this entry. */
2975 s
->size
+= PLT_ENTRY_SIZE
;
2976 /* We also need to make an entry in the .got.plt section, which
2977 will be placed in the .got section by the linker script. */
2978 htab
->elf
.sgotplt
->size
+= 4;
2979 /* We also need to make an entry in the .rel.plt section. */
2980 htab
->elf
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
2984 h
->plt
.offset
= (bfd_vma
) -1;
2990 h
->plt
.offset
= (bfd_vma
) -1;
2994 if (h
->got
.refcount
> 0)
2998 /* Make sure this symbol is output as a dynamic symbol.
2999 Undefined weak syms won't yet be marked as dynamic. */
3000 if (h
->dynindx
== -1
3001 && !h
->forced_local
)
3003 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
3008 h
->got
.offset
= s
->size
;
3011 if (!(ELF_ST_VISIBILITY (h
->other
)
3012 && h
->root
.type
== bfd_link_hash_undefweak
))
3013 htab
->elf
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
3016 h
->got
.offset
= (bfd_vma
) -1;
3018 if (eh
->dyn_relocs
== NULL
)
3021 /* Discard relocs on undefined weak syms with non-default
3023 if (info
->shared
|| elf32_tic6x_using_dsbt (htab
->obfd
))
3025 /* We use the pc_count field to hold the number of
3026 R_C6000_DSBT_INDEX relocs. */
3027 if (htab
->params
.dsbt_index
!= 0)
3029 struct elf_dyn_relocs
**pp
;
3031 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
3033 p
->count
-= p
->pc_count
;
3042 if (eh
->dyn_relocs
!= NULL
3043 && h
->root
.type
== bfd_link_hash_undefweak
)
3045 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
3046 eh
->dyn_relocs
= NULL
;
3048 /* Make sure undefined weak symbols are output as a dynamic
3050 else if (h
->dynindx
== -1
3051 && !h
->forced_local
)
3053 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
3059 /* Finally, allocate space. */
3060 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3064 sreloc
= elf_section_data (p
->sec
)->sreloc
;
3066 BFD_ASSERT (sreloc
!= NULL
);
3067 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
3073 /* Find any dynamic relocs that apply to read-only sections. */
3076 elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
3078 struct elf32_tic6x_link_hash_entry
*eh
;
3079 struct elf_dyn_relocs
*p
;
3081 if (h
->root
.type
== bfd_link_hash_warning
)
3082 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3084 eh
= (struct elf32_tic6x_link_hash_entry
*) h
;
3085 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3087 asection
*s
= p
->sec
->output_section
;
3089 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
3091 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
3093 info
->flags
|= DF_TEXTREL
;
3095 /* Not an error, just cut short the traversal. */
3102 /* Set the sizes of the dynamic sections. */
3105 elf32_tic6x_size_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
3107 struct elf32_tic6x_link_hash_table
*htab
;
3113 htab
= elf32_tic6x_hash_table (info
);
3114 dynobj
= htab
->elf
.dynobj
;
3118 if (htab
->elf
.dynamic_sections_created
)
3120 /* Set the contents of the .interp section to the interpreter. */
3121 if (info
->executable
)
3123 s
= bfd_get_section_by_name (dynobj
, ".interp");
3126 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
3127 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
3131 /* Set up .got offsets for local syms, and space for local dynamic
3133 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
3135 bfd_signed_vma
*local_got
;
3136 bfd_signed_vma
*end_local_got
;
3137 char *local_tls_type
;
3138 bfd_vma
*local_tlsdesc_gotent
;
3139 bfd_size_type locsymcount
;
3140 Elf_Internal_Shdr
*symtab_hdr
;
3143 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
3145 struct elf_dyn_relocs
*p
;
3147 for (p
= ((struct elf_dyn_relocs
*)
3148 elf_section_data (s
)->local_dynrel
);
3152 if (!bfd_is_abs_section (p
->sec
)
3153 && bfd_is_abs_section (p
->sec
->output_section
))
3155 /* Input section has been discarded, either because
3156 it is a copy of a linkonce section or due to
3157 linker script /DISCARD/, so we'll be discarding
3160 else if (p
->count
!= 0)
3162 srel
= elf_section_data (p
->sec
)->sreloc
;
3163 srel
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
3164 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
3165 info
->flags
|= DF_TEXTREL
;
3170 local_got
= elf_local_got_refcounts (ibfd
);
3174 symtab_hdr
= &elf_symtab_hdr (ibfd
);
3175 locsymcount
= symtab_hdr
->sh_info
;
3176 end_local_got
= local_got
+ locsymcount
;
3178 srel
= htab
->elf
.srelgot
;
3179 for (; local_got
< end_local_got
;
3180 ++local_got
, ++local_tls_type
, ++local_tlsdesc_gotent
)
3184 *local_got
= s
->size
;
3187 if (info
->shared
|| elf32_tic6x_using_dsbt (output_bfd
))
3189 srel
->size
+= sizeof (Elf32_External_Rela
);
3193 *local_got
= (bfd_vma
) -1;
3197 /* Allocate global sym .plt and .got entries, and space for global
3198 sym dynamic relocs. */
3199 elf_link_hash_traverse (&htab
->elf
, elf32_tic6x_allocate_dynrelocs
, info
);
3201 /* We now have determined the sizes of the various dynamic sections.
3202 Allocate memory for them. */
3204 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
3206 bfd_boolean strip_section
= TRUE
;
3208 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
3211 if (s
== htab
->dsbt
)
3212 s
->size
= 4 * htab
->params
.dsbt_size
;
3213 else if (s
== htab
->elf
.splt
3214 || s
== htab
->elf
.sgot
3215 || s
== htab
->elf
.sgotplt
3216 || s
== htab
->sdynbss
)
3218 /* Strip this section if we don't need it; see the
3220 /* We'd like to strip these sections if they aren't needed, but if
3221 we've exported dynamic symbols from them we must leave them.
3222 It's too late to tell BFD to get rid of the symbols. */
3224 if (htab
->elf
.hplt
!= NULL
)
3225 strip_section
= FALSE
;
3227 /* Round up the size of the PLT section to a multiple of 32. */
3228 if (s
== htab
->elf
.splt
&& s
->size
> 0)
3229 s
->size
= (s
->size
+ 31) & ~(bfd_vma
)31;
3231 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, s
), ".rela"))
3234 && s
!= htab
->elf
.srelplt
)
3237 /* We use the reloc_count field as a counter if we need
3238 to copy relocs into the output file. */
3243 /* It's not one of our sections, so don't allocate space. */
3249 /* If we don't need this section, strip it from the
3250 output file. This is mostly to handle .rel.bss and
3251 .rel.plt. We must create both sections in
3252 create_dynamic_sections, because they must be created
3253 before the linker maps input sections to output
3254 sections. The linker does that before
3255 adjust_dynamic_symbol is called, and it is that
3256 function which decides whether anything needs to go
3257 into these sections. */
3259 s
->flags
|= SEC_EXCLUDE
;
3263 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
3266 /* Allocate memory for the section contents. We use bfd_zalloc
3267 here in case unused entries are not reclaimed before the
3268 section's contents are written out. This should not happen,
3269 but this way if it does, we get a R_C6000_NONE reloc instead
3271 s
->contents
= bfd_zalloc (dynobj
, s
->size
);
3272 if (s
->contents
== NULL
)
3276 if (htab
->elf
.dynamic_sections_created
)
3278 /* Add some entries to the .dynamic section. We fill in the
3279 values later, in elf32_tic6x_finish_dynamic_sections, but we
3280 must add the entries now so that we get the correct size for
3281 the .dynamic section. The DT_DEBUG entry is filled in by the
3282 dynamic linker and used by the debugger. */
3283 #define add_dynamic_entry(TAG, VAL) \
3284 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3286 if (info
->executable
)
3288 if (!add_dynamic_entry (DT_DEBUG
, 0))
3292 if (!add_dynamic_entry (DT_C6000_DSBT_BASE
, 0)
3293 || !add_dynamic_entry (DT_C6000_DSBT_SIZE
, htab
->params
.dsbt_size
)
3294 || !add_dynamic_entry (DT_C6000_DSBT_INDEX
,
3295 htab
->params
.dsbt_index
))
3298 if (htab
->elf
.splt
->size
!= 0)
3300 if (!add_dynamic_entry (DT_PLTGOT
, 0)
3301 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
3302 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3303 || !add_dynamic_entry (DT_JMPREL
, 0))
3309 if (!add_dynamic_entry (DT_RELA
, 0)
3310 || !add_dynamic_entry (DT_RELASZ
, 0)
3311 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
3314 /* If any dynamic relocs apply to a read-only section,
3315 then we need a DT_TEXTREL entry. */
3316 if ((info
->flags
& DF_TEXTREL
) == 0)
3317 elf_link_hash_traverse (&htab
->elf
,
3318 elf32_tic6x_readonly_dynrelocs
, info
);
3320 if ((info
->flags
& DF_TEXTREL
) != 0)
3322 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3327 #undef add_dynamic_entry
3332 /* This function is called after all the input files have been read,
3333 and the input sections have been assigned to output sections. */
3336 elf32_tic6x_always_size_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
3338 if (elf32_tic6x_using_dsbt (output_bfd
) && !info
->relocatable
)
3340 struct elf_link_hash_entry
*h
;
3342 /* Force a PT_GNU_STACK segment to be created. */
3343 if (! elf_tdata (output_bfd
)->stack_flags
)
3344 elf_tdata (output_bfd
)->stack_flags
= PF_R
| PF_W
| PF_X
;
3346 /* Define __stacksize if it's not defined yet. */
3347 h
= elf_link_hash_lookup (elf_hash_table (info
), "__stacksize",
3348 FALSE
, FALSE
, FALSE
);
3349 if (! h
|| h
->root
.type
!= bfd_link_hash_defined
3350 || h
->type
!= STT_OBJECT
3353 struct bfd_link_hash_entry
*bh
= NULL
;
3355 if (!(_bfd_generic_link_add_one_symbol
3356 (info
, output_bfd
, "__stacksize",
3357 BSF_GLOBAL
, bfd_abs_section_ptr
, DEFAULT_STACK_SIZE
,
3358 (const char *) NULL
, FALSE
,
3359 get_elf_backend_data (output_bfd
)->collect
, &bh
)))
3362 h
= (struct elf_link_hash_entry
*) bh
;
3364 h
->type
= STT_OBJECT
;
3371 elf32_tic6x_modify_program_headers (bfd
*output_bfd
,
3372 struct bfd_link_info
*info
)
3374 struct elf_obj_tdata
*tdata
= elf_tdata (output_bfd
);
3375 struct elf_segment_map
*m
;
3376 Elf_Internal_Phdr
*p
;
3378 /* objcopy and strip preserve what's already there using
3379 elf32_tic6x_copy_private_bfd_data (). */
3383 for (p
= tdata
->phdr
, m
= tdata
->segment_map
; m
!= NULL
; m
= m
->next
, p
++)
3384 if (m
->p_type
== PT_GNU_STACK
)
3389 struct elf_link_hash_entry
*h
;
3391 /* Obtain the pointer to the __stacksize symbol. */
3392 h
= elf_link_hash_lookup (elf_hash_table (info
), "__stacksize",
3393 FALSE
, FALSE
, FALSE
);
3396 while (h
->root
.type
== bfd_link_hash_indirect
3397 || h
->root
.type
== bfd_link_hash_warning
)
3398 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3399 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
);
3402 /* Set the header p_memsz from the symbol value. We
3403 intentionally ignore the symbol section. */
3404 if (h
&& h
->root
.type
== bfd_link_hash_defined
)
3405 p
->p_memsz
= h
->root
.u
.def
.value
;
3407 p
->p_memsz
= DEFAULT_STACK_SIZE
;
3416 elf32_tic6x_finish_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
3417 struct bfd_link_info
*info
)
3419 struct elf32_tic6x_link_hash_table
*htab
;
3423 htab
= elf32_tic6x_hash_table (info
);
3424 dynobj
= htab
->elf
.dynobj
;
3425 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
3427 if (elf_hash_table (info
)->dynamic_sections_created
)
3429 Elf32_External_Dyn
* dyncon
;
3430 Elf32_External_Dyn
* dynconend
;
3432 BFD_ASSERT (sdyn
!= NULL
);
3434 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
3435 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
3437 for (; dyncon
< dynconend
; dyncon
++)
3439 Elf_Internal_Dyn dyn
;
3442 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
3449 case DT_C6000_DSBT_BASE
:
3451 dyn
.d_un
.d_ptr
= (s
->output_section
->vma
+ s
->output_offset
);
3455 s
= htab
->elf
.sgotplt
;
3456 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
3460 s
= htab
->elf
.srelplt
;
3461 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
3465 s
= htab
->elf
.srelplt
;
3466 dyn
.d_un
.d_val
= s
->size
;
3469 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3472 /* Fill in the first entry in the procedure linkage table. */
3473 if (htab
->elf
.splt
&& htab
->elf
.splt
->size
> 0)
3475 bfd_vma got_offs
= (htab
->elf
.sgotplt
->output_section
->vma
3476 + htab
->elf
.sgotplt
->output_offset
3477 - htab
->dsbt
->output_section
->vma
3478 - htab
->dsbt
->output_offset
) / 4;
3480 /* ldw .D2T2 *+b14[$GOT(0)],b2 */
3481 bfd_put_32 (output_bfd
, got_offs
<< 8 | 0x0100006e,
3482 htab
->elf
.splt
->contents
);
3483 /* ldw .D2T2 *+b14[$GOT(4)],b1 */
3484 bfd_put_32 (output_bfd
, (got_offs
+ 1) << 8 | 0x0080006e,
3485 htab
->elf
.splt
->contents
+ 4);
3487 bfd_put_32 (output_bfd
, 0x00004000,
3488 htab
->elf
.splt
->contents
+ 8);
3490 bfd_put_32 (output_bfd
, 0x00080362,
3491 htab
->elf
.splt
->contents
+ 12);
3493 bfd_put_32 (output_bfd
, 0x00008000,
3494 htab
->elf
.splt
->contents
+ 16);
3496 elf_section_data (htab
->elf
.splt
->output_section
)
3497 ->this_hdr
.sh_entsize
= PLT_ENTRY_SIZE
;
3504 /* Return address for Ith PLT stub in section PLT, for relocation REL
3505 or (bfd_vma) -1 if it should not be included. */
3508 elf32_tic6x_plt_sym_val (bfd_vma i
, const asection
*plt
,
3509 const arelent
*rel ATTRIBUTE_UNUSED
)
3511 return plt
->vma
+ (i
+ 1) * PLT_ENTRY_SIZE
;
3515 elf32_tic6x_obj_attrs_arg_type (int tag
)
3517 if (tag
== Tag_ABI_compatibility
)
3518 return ATTR_TYPE_FLAG_INT_VAL
| ATTR_TYPE_FLAG_STR_VAL
;
3520 return ATTR_TYPE_FLAG_STR_VAL
;
3522 return ATTR_TYPE_FLAG_INT_VAL
;
3526 elf32_tic6x_obj_attrs_order (int num
)
3528 if (num
== LEAST_KNOWN_OBJ_ATTRIBUTE
)
3529 return Tag_ABI_conformance
;
3530 if ((num
- 1) < Tag_ABI_conformance
)
3536 elf32_tic6x_obj_attrs_handle_unknown (bfd
*abfd
, int tag
)
3538 if ((tag
& 127) < 64)
3541 (_("%B: error: unknown mandatory EABI object attribute %d"),
3543 bfd_set_error (bfd_error_bad_value
);
3549 (_("%B: warning: unknown EABI object attribute %d"),
3555 /* Merge the Tag_ISA attribute values ARCH1 and ARCH2
3556 and return the merged value. At present, all merges succeed, so no
3557 return value for errors is defined. */
3560 elf32_tic6x_merge_arch_attributes (int arch1
, int arch2
)
3562 int min_arch
, max_arch
;
3564 min_arch
= (arch1
< arch2
? arch1
: arch2
);
3565 max_arch
= (arch1
> arch2
? arch1
: arch2
);
3567 /* In most cases, the numerically greatest value is the correct
3568 merged value, but merging C64 and C67 results in C674X. */
3569 if ((min_arch
== C6XABI_Tag_ISA_C67X
3570 || min_arch
== C6XABI_Tag_ISA_C67XP
)
3571 && (max_arch
== C6XABI_Tag_ISA_C64X
3572 || max_arch
== C6XABI_Tag_ISA_C64XP
))
3573 return C6XABI_Tag_ISA_C674X
;
3578 /* Convert a Tag_ABI_array_object_alignment or
3579 Tag_ABI_array_object_align_expected tag value TAG to a
3580 corresponding alignment value; return the alignment, or -1 for an
3581 unknown tag value. */
3584 elf32_tic6x_tag_to_array_alignment (int tag
)
3602 /* Convert a Tag_ABI_array_object_alignment or
3603 Tag_ABI_array_object_align_expected alignment ALIGN to a
3604 corresponding tag value; return the tag value. */
3607 elf32_tic6x_array_alignment_to_tag (int align
)
3625 /* Merge attributes from IBFD and OBFD, returning TRUE if the merge
3626 succeeded, FALSE otherwise. */
3629 elf32_tic6x_merge_attributes (bfd
*ibfd
, bfd
*obfd
)
3631 bfd_boolean result
= TRUE
;
3632 obj_attribute
*in_attr
;
3633 obj_attribute
*out_attr
;
3635 int array_align_in
, array_align_out
, array_expect_in
, array_expect_out
;
3637 if (!elf_known_obj_attributes_proc (obfd
)[0].i
)
3639 /* This is the first object. Copy the attributes. */
3640 _bfd_elf_copy_obj_attributes (ibfd
, obfd
);
3642 out_attr
= elf_known_obj_attributes_proc (obfd
);
3644 /* Use the Tag_null value to indicate the attributes have been
3651 in_attr
= elf_known_obj_attributes_proc (ibfd
);
3652 out_attr
= elf_known_obj_attributes_proc (obfd
);
3654 /* No specification yet for handling of unknown attributes, so just
3655 ignore them and handle known ones. */
3657 if (out_attr
[Tag_ABI_stack_align_preserved
].i
3658 < in_attr
[Tag_ABI_stack_align_needed
].i
)
3661 (_("error: %B requires more stack alignment than %B preserves"),
3665 if (in_attr
[Tag_ABI_stack_align_preserved
].i
3666 < out_attr
[Tag_ABI_stack_align_needed
].i
)
3669 (_("error: %B requires more stack alignment than %B preserves"),
3674 array_align_in
= elf32_tic6x_tag_to_array_alignment
3675 (in_attr
[Tag_ABI_array_object_alignment
].i
);
3676 if (array_align_in
== -1)
3679 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3683 array_align_out
= elf32_tic6x_tag_to_array_alignment
3684 (out_attr
[Tag_ABI_array_object_alignment
].i
);
3685 if (array_align_out
== -1)
3688 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3692 array_expect_in
= elf32_tic6x_tag_to_array_alignment
3693 (in_attr
[Tag_ABI_array_object_align_expected
].i
);
3694 if (array_expect_in
== -1)
3697 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3701 array_expect_out
= elf32_tic6x_tag_to_array_alignment
3702 (out_attr
[Tag_ABI_array_object_align_expected
].i
);
3703 if (array_expect_out
== -1)
3706 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3711 if (array_align_out
< array_expect_in
)
3714 (_("error: %B requires more array alignment than %B preserves"),
3718 if (array_align_in
< array_expect_out
)
3721 (_("error: %B requires more array alignment than %B preserves"),
3726 for (i
= LEAST_KNOWN_OBJ_ATTRIBUTE
; i
< NUM_KNOWN_OBJ_ATTRIBUTES
; i
++)
3731 out_attr
[i
].i
= elf32_tic6x_merge_arch_attributes (in_attr
[i
].i
,
3735 case Tag_ABI_wchar_t
:
3736 if (out_attr
[i
].i
== 0)
3737 out_attr
[i
].i
= in_attr
[i
].i
;
3738 if (out_attr
[i
].i
!= 0
3739 && in_attr
[i
].i
!= 0
3740 && out_attr
[i
].i
!= in_attr
[i
].i
)
3743 (_("warning: %B and %B differ in wchar_t size"), obfd
, ibfd
);
3747 case Tag_ABI_stack_align_needed
:
3748 if (out_attr
[i
].i
< in_attr
[i
].i
)
3749 out_attr
[i
].i
= in_attr
[i
].i
;
3752 case Tag_ABI_stack_align_preserved
:
3753 if (out_attr
[i
].i
> in_attr
[i
].i
)
3754 out_attr
[i
].i
= in_attr
[i
].i
;
3758 if (out_attr
[i
].i
!= in_attr
[i
].i
)
3761 (_("warning: %B and %B differ in whether code is "
3762 "compiled for DSBT"),
3768 if (out_attr
[i
].i
!= in_attr
[i
].i
)
3771 (_("warning: %B and %B differ in position-dependence of "
3778 if (out_attr
[i
].i
!= in_attr
[i
].i
)
3781 (_("warning: %B and %B differ in position-dependence of "
3787 case Tag_ABI_array_object_alignment
:
3788 if (array_align_out
!= -1
3789 && array_align_in
!= -1
3790 && array_align_out
> array_align_in
)
3792 = elf32_tic6x_array_alignment_to_tag (array_align_in
);
3795 case Tag_ABI_array_object_align_expected
:
3796 if (array_expect_out
!= -1
3797 && array_expect_in
!= -1
3798 && array_expect_out
< array_expect_in
)
3800 = elf32_tic6x_array_alignment_to_tag (array_expect_in
);
3803 case Tag_ABI_conformance
:
3804 /* Merging for this attribute is not specified. As on ARM,
3805 treat a missing attribute as no claim to conform and only
3806 merge identical values. */
3807 if (out_attr
[i
].s
== NULL
3808 || in_attr
[i
].s
== NULL
3809 || strcmp (out_attr
[i
].s
,
3811 out_attr
[i
].s
= NULL
;
3814 case Tag_ABI_compatibility
:
3815 /* Merged in _bfd_elf_merge_object_attributes. */
3820 = result
&& _bfd_elf_merge_unknown_attribute_low (ibfd
, obfd
, i
);
3824 if (in_attr
[i
].type
&& !out_attr
[i
].type
)
3825 out_attr
[i
].type
= in_attr
[i
].type
;
3828 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
3829 if (!_bfd_elf_merge_object_attributes (ibfd
, obfd
))
3832 result
&= _bfd_elf_merge_unknown_attribute_list (ibfd
, obfd
);
3838 elf32_tic6x_merge_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
3840 if (!_bfd_generic_verify_endian_match (ibfd
, obfd
))
3843 if (!elf32_tic6x_merge_attributes (ibfd
, obfd
))
3850 elf32_tic6x_copy_private_data (bfd
* ibfd
, bfd
* obfd
)
3852 _bfd_elf_copy_private_bfd_data (ibfd
, obfd
);
3854 if (! is_tic6x_elf (ibfd
) || ! is_tic6x_elf (obfd
))
3857 /* Copy the stack size. */
3858 if (elf_tdata (ibfd
)->phdr
&& elf_tdata (obfd
)->phdr
3859 && elf32_tic6x_using_dsbt (ibfd
) && elf32_tic6x_using_dsbt (obfd
))
3863 for (i
= 0; i
< elf_elfheader (ibfd
)->e_phnum
; i
++)
3864 if (elf_tdata (ibfd
)->phdr
[i
].p_type
== PT_GNU_STACK
)
3866 Elf_Internal_Phdr
*iphdr
= &elf_tdata (ibfd
)->phdr
[i
];
3868 for (i
= 0; i
< elf_elfheader (obfd
)->e_phnum
; i
++)
3869 if (elf_tdata (obfd
)->phdr
[i
].p_type
== PT_GNU_STACK
)
3871 memcpy (&elf_tdata (obfd
)->phdr
[i
], iphdr
, sizeof (*iphdr
));
3873 /* Rewrite the phdrs, since we're only called after they
3874 were first written. */
3876 (bfd_signed_vma
) get_elf_backend_data (obfd
)
3877 ->s
->sizeof_ehdr
, SEEK_SET
) != 0
3878 || get_elf_backend_data (obfd
)->s
3879 ->write_out_phdrs (obfd
, elf_tdata (obfd
)->phdr
,
3880 elf_elfheader (obfd
)->e_phnum
) != 0)
3892 #define TARGET_LITTLE_SYM bfd_elf32_tic6x_le_vec
3893 #define TARGET_LITTLE_NAME "elf32-tic6x-le"
3894 #define TARGET_BIG_SYM bfd_elf32_tic6x_be_vec
3895 #define TARGET_BIG_NAME "elf32-tic6x-be"
3896 #define ELF_ARCH bfd_arch_tic6x
3897 #define ELF_TARGET_ID TIC6X_ELF_DATA
3898 #define ELF_MACHINE_CODE EM_TI_C6000
3899 #define ELF_MAXPAGESIZE 0x1000
3900 #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
3901 #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
3902 #define bfd_elf32_bfd_copy_private_bfd_data elf32_tic6x_copy_private_data
3903 #define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
3904 #define bfd_elf32_mkobject elf32_tic6x_mkobject
3905 #define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
3906 #define bfd_elf32_bfd_link_hash_table_free elf32_tic6x_link_hash_table_free
3907 #define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
3908 #define elf_backend_can_gc_sections 1
3909 #define elf_backend_default_use_rela_p 1
3910 #define elf_backend_may_use_rel_p 1
3911 #define elf_backend_may_use_rela_p 1
3912 #define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
3913 #define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
3914 #define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
3915 #define elf_backend_obj_attrs_section ".c6xabi.attributes"
3916 #define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
3917 #define elf_backend_obj_attrs_vendor "c6xabi"
3918 #define elf_backend_can_refcount 1
3919 #define elf_backend_want_got_plt 1
3920 #define elf_backend_want_dynbss 1
3921 #define elf_backend_plt_readonly 1
3922 #define elf_backend_rela_normal 1
3923 #define elf_backend_got_header_size 8
3924 #define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook
3925 #define elf_backend_modify_program_headers \
3926 elf32_tic6x_modify_program_headers
3927 #define elf_backend_create_dynamic_sections \
3928 elf32_tic6x_create_dynamic_sections
3929 #define elf_backend_adjust_dynamic_symbol \
3930 elf32_tic6x_adjust_dynamic_symbol
3931 #define elf_backend_check_relocs elf32_tic6x_check_relocs
3932 #define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
3933 #define elf_backend_symbol_processing elf32_tic6x_symbol_processing
3934 #define elf_backend_link_output_symbol_hook \
3935 elf32_tic6x_link_output_symbol_hook
3936 #define elf_backend_section_from_bfd_section \
3937 elf32_tic6x_section_from_bfd_section
3938 #define elf_backend_relocate_section elf32_tic6x_relocate_section
3939 #define elf_backend_finish_dynamic_symbol \
3940 elf32_tic6x_finish_dynamic_symbol
3941 #define elf_backend_always_size_sections \
3942 elf32_tic6x_always_size_sections
3943 #define elf_backend_size_dynamic_sections \
3944 elf32_tic6x_size_dynamic_sections
3945 #define elf_backend_finish_dynamic_sections \
3946 elf32_tic6x_finish_dynamic_sections
3947 #define elf_info_to_howto elf32_tic6x_info_to_howto
3948 #define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
3950 #undef elf_backend_omit_section_dynsym
3951 #define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
3952 #define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
3955 #include "elf32-target.h"