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;
1523 elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info)
1527 obj_attribute *out_attr;
1528 out_attr = elf_known_obj_attributes_proc (abfd);
1529 if (out_attr[Tag_ABI_PIC].i == 0)
1531 _bfd_error_handler (_("warning: generating a shared library "
1532 "containing non-PIC code"));
1534 if (out_attr[Tag_ABI_PID].i == 0)
1536 _bfd_error_handler (_("warning: generating a shared library "
1537 "containing non-PID code"));
1540 /* Invoke the regular ELF backend linker to do all the work. */
1541 if (!bfd_elf_final_link (abfd, info))
1547 /* Destroy a C6X ELF linker hash table. */
1550 elf32_tic6x_link_hash_table_free (struct bfd_link_hash_table *hash)
1552 _bfd_generic_link_hash_table_free (hash);
1555 /* Called to pass PARAMS to the backend. We store them in the hash table
1556 associated with INFO. */
1559 elf32_tic6x_setup (struct bfd_link_info *info,
1560 struct elf32_tic6x_params *params)
1562 struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info);
1563 htab->params = *params;
1566 /* Determine if we're dealing with a DSBT object. */
1569 elf32_tic6x_using_dsbt (bfd *abfd)
1571 return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC,
1575 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt
1576 sections in DYNOBJ, and set up shortcuts to them in our hash
1580 elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
1582 struct elf32_tic6x_link_hash_table *htab;
1585 htab = elf32_tic6x_hash_table (info);
1589 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1593 flags = (SEC_ALLOC | SEC_LOAD
1594 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1595 htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt",
1597 if (htab->dsbt == NULL
1598 || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2)
1599 || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5))
1602 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
1604 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
1607 || (!info->shared && !htab->srelbss))
1614 elf32_tic6x_mkobject (bfd *abfd)
1618 ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata),
1621 elf32_tic6x_set_use_rela_p (abfd, TRUE);
1625 /* Install relocation RELA into section SRELA, incrementing its
1629 elf32_tic6x_install_rela (bfd *output_bfd, asection *srela,
1630 Elf_Internal_Rela *rela)
1633 bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela);
1634 loc = srela->contents + off;
1635 BFD_ASSERT (off < srela->size);
1636 bfd_elf32_swap_reloca_out (output_bfd, rela, loc);
1639 /* Create a dynamic reloc against the GOT at offset OFFSET. The contents
1640 of the GOT at this offset have been initialized with the relocation. */
1643 elf32_tic6x_make_got_dynreloc (bfd *output_bfd,
1644 struct elf32_tic6x_link_hash_table *htab,
1645 asection *sym_sec, bfd_vma offset)
1647 asection *sgot = htab->elf.sgot;
1648 Elf_Internal_Rela outrel;
1651 outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset;
1652 outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset);
1653 if (sym_sec && sym_sec->output_section
1654 && ! bfd_is_abs_section (sym_sec->output_section)
1655 && ! bfd_is_und_section (sym_sec->output_section))
1657 dynindx = elf_section_data (sym_sec->output_section)->dynindx;
1658 outrel.r_addend -= sym_sec->output_section->vma;
1664 outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32);
1665 elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel);
1668 /* Finish up dynamic symbol handling. We set the contents of various
1669 dynamic sections here. */
1672 elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd,
1673 struct bfd_link_info *info,
1674 struct elf_link_hash_entry *h,
1675 Elf_Internal_Sym * sym)
1678 struct elf32_tic6x_link_hash_table *htab;
1680 htab = elf32_tic6x_hash_table (info);
1681 dynobj = htab->elf.dynobj;
1683 if (h->plt.offset != (bfd_vma) -1)
1686 bfd_vma got_section_offset, got_dp_offset, rela_offset;
1687 Elf_Internal_Rela rela;
1689 asection *plt, *gotplt, *relplt;
1690 const struct elf_backend_data *bed;
1692 bed = get_elf_backend_data (output_bfd);
1694 BFD_ASSERT (htab->elf.splt != NULL);
1695 plt = htab->elf.splt;
1696 gotplt = htab->elf.sgotplt;
1697 relplt = htab->elf.srelplt;
1699 /* This symbol has an entry in the procedure linkage table. Set
1702 if ((h->dynindx == -1
1703 && !((h->forced_local || info->executable)
1705 && h->type == STT_GNU_IFUNC))
1711 /* Get the index in the procedure linkage table which
1712 corresponds to this symbol. This is the index of this symbol
1713 in all the symbols for which we are making plt entries. The
1714 first entry in the procedure linkage table is reserved.
1716 Get the offset into the .got table of the entry that
1717 corresponds to this function. Each .got entry is 4 bytes.
1718 The first three are reserved.
1720 For static executables, we don't reserve anything. */
1722 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1723 got_section_offset = plt_index + bed->got_header_size / 4;
1724 got_dp_offset = got_section_offset + htab->params.dsbt_size;
1725 rela_offset = plt_index * sizeof (Elf32_External_Rela);
1727 got_section_offset *= 4;
1729 /* Fill in the entry in the procedure linkage table. */
1731 /* ldw .d2t2 *+B14($GOT(f)), b2 */
1732 bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e,
1733 plt->contents + h->plt.offset);
1734 /* mvk .s2 low(rela_offset), b0 */
1735 bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a,
1736 plt->contents + h->plt.offset + 4);
1737 /* mvkh .s2 high(rela_offset), b0 */
1738 bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a,
1739 plt->contents + h->plt.offset + 8);
1741 bfd_put_32 (output_bfd, 0x00002000,
1742 plt->contents + h->plt.offset + 12);
1744 bfd_put_32 (output_bfd, 0x00080362,
1745 plt->contents + h->plt.offset + 16);
1747 bfd_put_32 (output_bfd, 0x00008000,
1748 plt->contents + h->plt.offset + 20);
1750 /* Fill in the entry in the global offset table. */
1751 bfd_put_32 (output_bfd,
1752 (plt->output_section->vma + plt->output_offset),
1753 gotplt->contents + got_section_offset);
1755 /* Fill in the entry in the .rel.plt section. */
1756 rela.r_offset = (gotplt->output_section->vma
1757 + gotplt->output_offset
1758 + got_section_offset);
1759 rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT);
1761 loc = relplt->contents + rela_offset;
1762 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1764 if (!h->def_regular)
1766 /* Mark the symbol as undefined, rather than as defined in
1767 the .plt section. */
1768 sym->st_shndx = SHN_UNDEF;
1773 if (h->got.offset != (bfd_vma) -1)
1778 /* This symbol has an entry in the global offset table.
1781 sgot = bfd_get_section_by_name (dynobj, ".got");
1782 srela = bfd_get_section_by_name (dynobj, ".rela.got");
1783 BFD_ASSERT (sgot != NULL && srela != NULL);
1785 /* If this is a -Bsymbolic link, and the symbol is defined
1786 locally, we just want to emit a RELATIVE reloc. Likewise if
1787 the symbol was forced to be local because of a version file.
1788 The entry in the global offset table will already have been
1789 initialized in the relocate_section function. */
1792 || h->dynindx == -1 || h->forced_local) && h->def_regular)
1794 asection *s = h->root.u.def.section;
1795 elf32_tic6x_make_got_dynreloc (output_bfd, htab, s,
1796 h->got.offset & ~(bfd_vma) 1);
1800 Elf_Internal_Rela outrel;
1801 bfd_put_32 (output_bfd, (bfd_vma) 0,
1802 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
1803 outrel.r_offset = (sgot->output_section->vma
1804 + sgot->output_offset
1805 + (h->got.offset & ~(bfd_vma) 1));
1806 outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32);
1807 outrel.r_addend = 0;
1809 elf32_tic6x_install_rela (output_bfd, srela, &outrel);
1815 Elf_Internal_Rela rel;
1817 /* This symbol needs a copy reloc. Set it up. */
1819 if (h->dynindx == -1
1820 || (h->root.type != bfd_link_hash_defined
1821 && h->root.type != bfd_link_hash_defweak)
1822 || htab->srelbss == NULL)
1825 rel.r_offset = (h->root.u.def.value
1826 + h->root.u.def.section->output_section->vma
1827 + h->root.u.def.section->output_offset);
1828 rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY);
1831 elf32_tic6x_install_rela (output_bfd, htab->srelbss, &rel);
1834 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1835 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
1836 || h == elf_hash_table (info)->hgot)
1837 sym->st_shndx = SHN_ABS;
1842 /* Unwinding tables are not referenced directly. This pass marks them as
1843 required if the corresponding code section is marked. */
1846 elf32_tic6x_gc_mark_extra_sections (struct bfd_link_info *info,
1847 elf_gc_mark_hook_fn gc_mark_hook)
1850 Elf_Internal_Shdr **elf_shdrp;
1853 /* Marking EH data may cause additional code sections to be marked,
1854 requiring multiple passes. */
1859 for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
1863 if (! is_tic6x_elf (sub))
1866 elf_shdrp = elf_elfsections (sub);
1867 for (o = sub->sections; o != NULL; o = o->next)
1869 Elf_Internal_Shdr *hdr;
1871 hdr = &elf_section_data (o)->this_hdr;
1872 if (hdr->sh_type == SHT_C6000_UNWIND
1874 && hdr->sh_link < elf_numsections (sub)
1876 && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark)
1879 if (!_bfd_elf_gc_mark (info, o, gc_mark_hook))
1889 /* Update the got entry reference counts for the section being removed. */
1892 elf32_tic6x_gc_sweep_hook (bfd *abfd,
1893 struct bfd_link_info *info,
1895 const Elf_Internal_Rela *relocs)
1897 struct elf32_tic6x_link_hash_table *htab;
1898 Elf_Internal_Shdr *symtab_hdr;
1899 struct elf_link_hash_entry **sym_hashes;
1900 bfd_signed_vma *local_got_refcounts;
1901 const Elf_Internal_Rela *rel, *relend;
1903 if (info->relocatable)
1906 htab = elf32_tic6x_hash_table (info);
1910 elf_section_data (sec)->local_dynrel = NULL;
1912 symtab_hdr = &elf_symtab_hdr (abfd);
1913 sym_hashes = elf_sym_hashes (abfd);
1914 local_got_refcounts = elf_local_got_refcounts (abfd);
1916 relend = relocs + sec->reloc_count;
1917 for (rel = relocs; rel < relend; rel++)
1919 unsigned long r_symndx;
1920 unsigned int r_type;
1921 struct elf_link_hash_entry *h = NULL;
1923 r_symndx = ELF32_R_SYM (rel->r_info);
1924 if (r_symndx >= symtab_hdr->sh_info)
1926 struct elf32_tic6x_link_hash_entry *eh;
1927 struct elf_dyn_relocs **pp;
1928 struct elf_dyn_relocs *p;
1930 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1931 while (h->root.type == bfd_link_hash_indirect
1932 || h->root.type == bfd_link_hash_warning)
1933 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1934 eh = (struct elf32_tic6x_link_hash_entry *) h;
1936 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1939 /* Everything must go for SEC. */
1945 r_type = ELF32_R_TYPE (rel->r_info);
1949 case R_C6000_SBR_GOT_U15_W:
1950 case R_C6000_SBR_GOT_L16_W:
1951 case R_C6000_SBR_GOT_H16_W:
1952 case R_C6000_EHTYPE:
1955 if (h->got.refcount > 0)
1956 h->got.refcount -= 1;
1958 else if (local_got_refcounts != NULL)
1960 if (local_got_refcounts[r_symndx] > 0)
1961 local_got_refcounts[r_symndx] -= 1;
1973 /* Adjust a symbol defined by a dynamic object and referenced by a
1974 regular object. The current definition is in some section of the
1975 dynamic object, but we're not including those sections. We have to
1976 change the definition to something the rest of the link can
1980 elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info,
1981 struct elf_link_hash_entry *h)
1983 struct elf32_tic6x_link_hash_table *htab;
1987 dynobj = elf_hash_table (info)->dynobj;
1989 /* Make sure we know what is going on here. */
1990 BFD_ASSERT (dynobj != NULL
1992 || h->u.weakdef != NULL
1993 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
1995 /* If this is a function, put it in the procedure linkage table. We
1996 will fill in the contents of the procedure linkage table later,
1997 when we know the address of the .got section. */
1998 if (h->type == STT_FUNC
2001 if (h->plt.refcount <= 0
2002 || SYMBOL_CALLS_LOCAL (info, h)
2003 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2004 && h->root.type == bfd_link_hash_undefweak))
2006 /* This case can occur if we saw a PLT32 reloc in an input
2007 file, but the symbol was never referred to by a dynamic
2008 object, or if all references were garbage collected. In
2009 such a case, we don't actually need to build a procedure
2010 linkage table, and we can just do a PC32 reloc instead. */
2011 h->plt.offset = (bfd_vma) -1;
2018 /* If this is a weak symbol, and there is a real definition, the
2019 processor independent code will have arranged for us to see the
2020 real definition first, and we can just use the same value. */
2021 if (h->u.weakdef != NULL)
2023 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2024 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2025 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2026 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2027 h->non_got_ref = h->u.weakdef->non_got_ref;
2031 /* This is a reference to a symbol defined by a dynamic object which
2032 is not a function. */
2034 /* If we are creating a shared library, we must presume that the
2035 only references to the symbol are via the global offset table.
2036 For such cases we need not do anything here; the relocations will
2037 be handled correctly by relocate_section. */
2041 /* If there are no references to this symbol that do not use the
2042 GOT, we don't need to generate a copy reloc. */
2043 if (!h->non_got_ref)
2046 /* If -z nocopyreloc was given, we won't generate them either. */
2047 if (info->nocopyreloc)
2053 htab = elf32_tic6x_hash_table (info);
2059 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
2060 h->root.root.string);
2064 /* We must allocate the symbol in our .dynbss section, which will
2065 become part of the .bss section of the executable. There will be
2066 an entry for this symbol in the .dynsym section. The dynamic
2067 object will contain position independent code, so all references
2068 from the dynamic object to this symbol will go through the global
2069 offset table. The dynamic linker will use the .dynsym entry to
2070 determine the address it must put in the global offset table, so
2071 both the dynamic object and the regular object will refer to the
2072 same memory location for the variable. */
2074 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
2075 copy the initial value out of the dynamic object and into the
2076 runtime process image. */
2077 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2079 htab->srelbss->size += sizeof (Elf32_External_Rela);
2085 return _bfd_elf_adjust_dynamic_copy (h, s);
2089 elf32_tic6x_new_section_hook (bfd *abfd, asection *sec)
2093 ret = _bfd_elf_new_section_hook (abfd, sec);
2094 sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p;
2099 /* Return true if relocation REL against section SEC is a REL rather
2100 than RELA relocation. RELOCS is the first relocation in the
2101 section and ABFD is the bfd that contains SEC. */
2104 elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec,
2105 const Elf_Internal_Rela *relocs,
2106 const Elf_Internal_Rela *rel)
2108 Elf_Internal_Shdr *rel_hdr;
2109 const struct elf_backend_data *bed;
2111 /* To determine which flavor of relocation this is, we depend on the
2112 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
2113 rel_hdr = elf_section_data (sec)->rel.hdr;
2114 if (rel_hdr == NULL)
2116 bed = get_elf_backend_data (abfd);
2117 return ((size_t) (rel - relocs)
2118 < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel);
2121 /* We need dynamic symbols for every section, since segments can
2122 relocate independently. */
2124 elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2125 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2128 switch (elf_section_data (p)->this_hdr.sh_type)
2132 /* If sh_type is yet undecided, assume it could be
2133 SHT_PROGBITS/SHT_NOBITS. */
2137 /* There shouldn't be section relative relocations
2138 against any other section. */
2145 elf32_tic6x_relocate_section (bfd *output_bfd,
2146 struct bfd_link_info *info,
2148 asection *input_section,
2150 Elf_Internal_Rela *relocs,
2151 Elf_Internal_Sym *local_syms,
2152 asection **local_sections)
2154 struct elf32_tic6x_link_hash_table *htab;
2155 Elf_Internal_Shdr *symtab_hdr;
2156 struct elf_link_hash_entry **sym_hashes;
2157 bfd_vma *local_got_offsets;
2158 Elf_Internal_Rela *rel;
2159 Elf_Internal_Rela *relend;
2160 bfd_boolean ok = TRUE;
2162 htab = elf32_tic6x_hash_table (info);
2163 symtab_hdr = & elf_symtab_hdr (input_bfd);
2164 sym_hashes = elf_sym_hashes (input_bfd);
2165 local_got_offsets = elf_local_got_offsets (input_bfd);
2167 relend = relocs + input_section->reloc_count;
2169 for (rel = relocs; rel < relend; rel ++)
2172 unsigned long r_symndx;
2174 reloc_howto_type *howto;
2175 Elf_Internal_Sym *sym;
2177 struct elf_link_hash_entry *h;
2178 bfd_vma off, relocation;
2179 bfd_boolean unresolved_reloc;
2180 bfd_reloc_status_type r;
2181 struct bfd_link_hash_entry *sbh;
2184 r_type = ELF32_R_TYPE (rel->r_info);
2185 r_symndx = ELF32_R_SYM (rel->r_info);
2187 is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section,
2191 elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel);
2193 elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel);
2194 howto = bfd_reloc.howto;
2197 bfd_set_error (bfd_error_bad_value);
2204 unresolved_reloc = FALSE;
2206 if (r_symndx < symtab_hdr->sh_info)
2208 sym = local_syms + r_symndx;
2209 sec = local_sections[r_symndx];
2210 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2216 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2217 r_symndx, symtab_hdr, sym_hashes,
2219 unresolved_reloc, warned);
2222 if (sec != NULL && elf_discarded_section (sec))
2223 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2224 rel, relend, howto, contents);
2226 if (info->relocatable)
2230 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2233 relocation = sec->output_offset + sym->st_value;
2234 r = _bfd_relocate_contents (howto, input_bfd, relocation,
2235 contents + rel->r_offset);
2245 case R_C6000_FPHEAD:
2247 /* No action needed. */
2250 case R_C6000_PCR_S21:
2251 /* A branch to an undefined weak symbol is turned into a
2252 "b .s2 B3" instruction if the existing insn is of the
2253 form "b .s2 symbol". */
2254 if (h ? h->root.type == bfd_link_hash_undefweak
2255 && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1)
2256 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2258 unsigned long oldval;
2259 oldval = bfd_get_32 (input_bfd, contents + rel->r_offset);
2261 if ((oldval & 0x7e) == 0x12)
2263 oldval &= 0xF0000001;
2264 bfd_put_32 (input_bfd, oldval | 0x000c0362,
2265 contents + rel->r_offset);
2271 case R_C6000_PCR_S12:
2272 case R_C6000_PCR_S10:
2273 case R_C6000_PCR_S7:
2275 && h->plt.offset != (bfd_vma) -1
2276 && htab->elf.splt != NULL)
2278 relocation = (htab->elf.splt->output_section->vma
2279 + htab->elf.splt->output_offset
2283 /* Generic PC-relative handling produces a value relative to
2284 the exact location of the relocation. Adjust it to be
2285 relative to the start of the fetch packet instead. */
2286 relocation += (input_section->output_section->vma
2287 + input_section->output_offset
2288 + rel->r_offset) & 0x1f;
2289 unresolved_reloc = FALSE;
2292 case R_C6000_DSBT_INDEX:
2293 relocation = elf32_tic6x_hash_table (info)->params.dsbt_index;
2294 if (!info->shared || relocation != 0)
2301 case R_C6000_ABS_S16:
2302 case R_C6000_ABS_L16:
2303 case R_C6000_ABS_H16:
2304 /* When generating a shared object or relocatable executable, these
2305 relocations are copied into the output file to be resolved at
2307 if ((info->shared || elf32_tic6x_using_dsbt (output_bfd))
2308 && (input_section->flags & SEC_ALLOC)
2310 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2311 || h->root.type != bfd_link_hash_undefweak))
2313 Elf_Internal_Rela outrel;
2314 bfd_boolean skip, relocate;
2317 unresolved_reloc = FALSE;
2319 sreloc = elf_section_data (input_section)->sreloc;
2320 BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
2326 _bfd_elf_section_offset (output_bfd, info, input_section,
2328 if (outrel.r_offset == (bfd_vma) -1)
2330 else if (outrel.r_offset == (bfd_vma) -2)
2331 skip = TRUE, relocate = TRUE;
2332 outrel.r_offset += (input_section->output_section->vma
2333 + input_section->output_offset);
2336 memset (&outrel, 0, sizeof outrel);
2341 || !h->def_regular))
2343 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2344 outrel.r_addend = rel->r_addend;
2350 outrel.r_addend = relocation + rel->r_addend;
2352 if (bfd_is_abs_section (sec))
2354 else if (sec == NULL || sec->owner == NULL)
2356 bfd_set_error (bfd_error_bad_value);
2363 osec = sec->output_section;
2364 indx = elf_section_data (osec)->dynindx;
2365 outrel.r_addend -= osec->vma;
2366 BFD_ASSERT (indx != 0);
2369 outrel.r_info = ELF32_R_INFO (indx, r_type);
2372 elf32_tic6x_install_rela (output_bfd, sreloc, &outrel);
2374 /* If this reloc is against an external symbol, we do not want to
2375 fiddle with the addend. Otherwise, we need to include the symbol
2376 value so that it becomes an addend for the dynamic reloc. */
2381 /* Generic logic OK. */
2384 case R_C6000_SBR_U15_B:
2385 case R_C6000_SBR_U15_H:
2386 case R_C6000_SBR_U15_W:
2387 case R_C6000_SBR_S16:
2388 case R_C6000_SBR_L16_B:
2389 case R_C6000_SBR_L16_H:
2390 case R_C6000_SBR_L16_W:
2391 case R_C6000_SBR_H16_B:
2392 case R_C6000_SBR_H16_H:
2393 case R_C6000_SBR_H16_W:
2394 sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE",
2395 FALSE, FALSE, TRUE);
2397 && (sbh->type == bfd_link_hash_defined
2398 || sbh->type == bfd_link_hash_defweak))
2400 if (h ? (h->root.type == bfd_link_hash_undefweak
2401 && (htab->elf.splt == NULL
2402 || h->plt.offset == (bfd_vma) -1))
2403 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2406 relocation -= (sbh->u.def.value
2407 + sbh->u.def.section->output_section->vma
2408 + sbh->u.def.section->output_offset);
2412 (*_bfd_error_handler) (_("%B: SB-relative relocation but "
2413 "__c6xabi_DSBT_BASE not defined"),
2420 case R_C6000_SBR_GOT_U15_W:
2421 case R_C6000_SBR_GOT_L16_W:
2422 case R_C6000_SBR_GOT_H16_W:
2423 case R_C6000_EHTYPE:
2424 /* Relocation is to the entry for this symbol in the global
2426 if (htab->elf.sgot == NULL)
2433 off = h->got.offset;
2434 dyn = htab->elf.dynamic_sections_created;
2435 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2437 && SYMBOL_REFERENCES_LOCAL (info, h))
2438 || (ELF_ST_VISIBILITY (h->other)
2439 && h->root.type == bfd_link_hash_undefweak))
2441 /* This is actually a static link, or it is a
2442 -Bsymbolic link and the symbol is defined
2443 locally, or the symbol was forced to be local
2444 because of a version file. We must initialize
2445 this entry in the global offset table. Since the
2446 offset must always be a multiple of 4, we use the
2447 least significant bit to record whether we have
2448 initialized it already.
2450 When doing a dynamic link, we create a .rel.got
2451 relocation entry to initialize the value. This
2452 is done in the finish_dynamic_symbol routine. */
2457 bfd_put_32 (output_bfd, relocation,
2458 htab->elf.sgot->contents + off);
2461 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
2463 && !(ELF_ST_VISIBILITY (h->other)
2464 && h->root.type == bfd_link_hash_undefweak))
2465 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec,
2470 unresolved_reloc = FALSE;
2474 if (local_got_offsets == NULL)
2477 off = local_got_offsets[r_symndx];
2479 /* The offset must always be a multiple of 4. We use
2480 the least significant bit to record whether we have
2481 already generated the necessary reloc. */
2486 bfd_put_32 (output_bfd, relocation,
2487 htab->elf.sgot->contents + off);
2489 if (info->shared || elf32_tic6x_using_dsbt (output_bfd))
2490 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off);
2492 local_got_offsets[r_symndx] |= 1;
2496 if (off >= (bfd_vma) -2)
2500 relocation = (htab->elf.sgot->output_section->vma
2501 + htab->elf.sgot->output_offset + off
2502 - htab->dsbt->output_section->vma
2503 - htab->dsbt->output_offset);
2505 relocation = (htab->elf.sgot->output_section->vma
2506 + htab->elf.sgot->output_offset + off
2507 - htab->elf.sgotplt->output_section->vma
2508 - htab->elf.sgotplt->output_offset);
2510 if (rel->r_addend != 0)
2512 /* We can't do anything for a relocation which is against
2513 a symbol *plus offset*. GOT holds relocations for
2514 symbols. Make this an error; the compiler isn't
2515 allowed to pass us these kinds of things. */
2517 (*_bfd_error_handler)
2518 (_("%B, section %A: relocation %s with non-zero addend %d"
2519 " against local symbol"),
2522 elf32_tic6x_howto_table[r_type].name,
2525 (*_bfd_error_handler)
2526 (_("%B, section %A: relocation %s with non-zero addend %d"
2527 " against symbol `%s'"),
2530 elf32_tic6x_howto_table[r_type].name,
2532 h->root.root.string[0] != '\0' ? h->root.root.string
2533 : _("[whose name is lost]"));
2535 bfd_set_error (bfd_error_bad_value);
2540 case R_C6000_PREL31:
2542 && h->plt.offset != (bfd_vma) -1
2543 && htab->elf.splt != NULL)
2545 relocation = (htab->elf.splt->output_section->vma
2546 + htab->elf.splt->output_offset
2552 /* Invalid in relocatable object. */
2554 /* Unknown relocation. */
2555 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
2561 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2562 contents, rel->r_offset,
2563 relocation, rel->r_addend);
2566 if (r == bfd_reloc_ok
2567 && howto->complain_on_overflow == complain_overflow_bitfield)
2569 /* Generic overflow handling accepts cases the ABI says
2570 should be rejected for R_C6000_ABS16 and
2572 bfd_vma value = (relocation + rel->r_addend) & 0xffffffff;
2573 bfd_vma sbit = 1 << (howto->bitsize - 1);
2574 bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff;
2575 bfd_vma value_sbits = value & sbits;
2577 if (value_sbits != 0
2578 && value_sbits != sbit
2579 && value_sbits != sbits)
2580 r = bfd_reloc_overflow;
2583 if (r != bfd_reloc_ok)
2586 const char *error_message;
2589 name = h->root.root.string;
2592 name = bfd_elf_string_from_elf_section (input_bfd,
2593 symtab_hdr->sh_link,
2598 name = bfd_section_name (input_bfd, sec);
2603 case bfd_reloc_overflow:
2604 /* If the overflowing reloc was to an undefined symbol,
2605 we have already printed one error message and there
2606 is no point complaining again. */
2608 h->root.type != bfd_link_hash_undefined)
2609 && (!((*info->callbacks->reloc_overflow)
2610 (info, (h ? &h->root : NULL), name, howto->name,
2611 (bfd_vma) 0, input_bfd, input_section,
2616 case bfd_reloc_undefined:
2617 if (!((*info->callbacks->undefined_symbol)
2618 (info, name, input_bfd, input_section,
2619 rel->r_offset, TRUE)))
2623 case bfd_reloc_outofrange:
2624 error_message = _("out of range");
2627 case bfd_reloc_notsupported:
2628 error_message = _("unsupported relocation");
2631 case bfd_reloc_dangerous:
2632 error_message = _("dangerous relocation");
2636 error_message = _("unknown error");
2640 BFD_ASSERT (error_message != NULL);
2641 if (!((*info->callbacks->reloc_dangerous)
2642 (info, error_message, input_bfd, input_section,
2654 /* Look through the relocs for a section during the first phase, and
2655 calculate needed space in the global offset table, procedure linkage
2656 table, and dynamic reloc sections. */
2659 elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info,
2660 asection *sec, const Elf_Internal_Rela *relocs)
2662 struct elf32_tic6x_link_hash_table *htab;
2663 Elf_Internal_Shdr *symtab_hdr;
2664 struct elf_link_hash_entry **sym_hashes;
2665 const Elf_Internal_Rela *rel;
2666 const Elf_Internal_Rela *rel_end;
2669 if (info->relocatable)
2672 htab = elf32_tic6x_hash_table (info);
2673 symtab_hdr = &elf_symtab_hdr (abfd);
2674 sym_hashes = elf_sym_hashes (abfd);
2676 /* Create dynamic sections for relocatable executables so that we can
2677 copy relocations. */
2678 if (elf32_tic6x_using_dsbt (abfd)
2679 && ! htab->elf.dynamic_sections_created)
2681 if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
2687 rel_end = relocs + sec->reloc_count;
2688 for (rel = relocs; rel < rel_end; rel++)
2690 unsigned int r_type;
2691 unsigned long r_symndx;
2692 struct elf_link_hash_entry *h;
2693 Elf_Internal_Sym *isym;
2695 r_symndx = ELF32_R_SYM (rel->r_info);
2696 r_type = ELF32_R_TYPE (rel->r_info);
2698 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
2700 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
2706 if (r_symndx < symtab_hdr->sh_info)
2708 /* A local symbol. */
2709 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2718 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2719 while (h->root.type == bfd_link_hash_indirect
2720 || h->root.type == bfd_link_hash_warning)
2721 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2726 case R_C6000_PCR_S21:
2727 case R_C6000_PREL31:
2728 /* This symbol requires a procedure linkage table entry. We
2729 actually build the entry in adjust_dynamic_symbol,
2730 because this might be a case of linking PIC code which is
2731 never referenced by a dynamic object, in which case we
2732 don't need to generate a procedure linkage table entry
2735 /* If this is a local symbol, we resolve it directly without
2736 creating a procedure linkage table entry. */
2741 h->plt.refcount += 1;
2744 case R_C6000_SBR_GOT_U15_W:
2745 case R_C6000_SBR_GOT_L16_W:
2746 case R_C6000_SBR_GOT_H16_W:
2747 case R_C6000_EHTYPE:
2748 /* This symbol requires a global offset table entry. */
2751 h->got.refcount += 1;
2755 bfd_signed_vma *local_got_refcounts;
2757 /* This is a global offset table entry for a local symbol. */
2758 local_got_refcounts = elf_local_got_refcounts (abfd);
2759 if (local_got_refcounts == NULL)
2763 size = symtab_hdr->sh_info;
2764 size *= (sizeof (bfd_signed_vma)
2765 + sizeof (bfd_vma) + sizeof(char));
2766 local_got_refcounts = bfd_zalloc (abfd, size);
2767 if (local_got_refcounts == NULL)
2769 elf_local_got_refcounts (abfd) = local_got_refcounts;
2771 local_got_refcounts[r_symndx] += 1;
2774 if (htab->elf.sgot == NULL)
2776 if (htab->elf.dynobj == NULL)
2777 htab->elf.dynobj = abfd;
2778 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
2783 case R_C6000_DSBT_INDEX:
2784 /* We'd like to check for nonzero dsbt_index here, but it's
2785 set up only after check_relocs is called. Instead, we
2786 store the number of R_C6000_DSBT_INDEX relocs in the
2787 pc_count field, and potentially discard the extra space
2788 in elf32_tic6x_allocate_dynrelocs. */
2796 case R_C6000_ABS_S16:
2797 case R_C6000_ABS_L16:
2798 case R_C6000_ABS_H16:
2799 /* If we are creating a shared library, and this is a reloc
2800 against a global symbol, or a non PC relative reloc
2801 against a local symbol, then we need to copy the reloc
2802 into the shared library. However, if we are linking with
2803 -Bsymbolic, we do not need to copy a reloc against a
2804 global symbol which is defined in an object we are
2805 including in the link (i.e., DEF_REGULAR is set). At
2806 this point we have not seen all the input files, so it is
2807 possible that DEF_REGULAR is not set now but will be set
2808 later (it is never cleared). In case of a weak definition,
2809 DEF_REGULAR may be cleared later by a strong definition in
2810 a shared library. We account for that possibility below by
2811 storing information in the relocs_copied field of the hash
2812 table entry. A similar situation occurs when creating
2813 shared libraries and symbol visibility changes render the
2816 If on the other hand, we are creating an executable, we
2817 may need to keep relocations for symbols satisfied by a
2818 dynamic library if we manage to avoid copy relocs for the
2820 if ((info->shared || elf32_tic6x_using_dsbt (abfd))
2821 && (sec->flags & SEC_ALLOC) != 0)
2823 struct elf_dyn_relocs *p;
2824 struct elf_dyn_relocs **head;
2826 /* We must copy these reloc types into the output file.
2827 Create a reloc section in dynobj and make room for
2831 if (htab->elf.dynobj == NULL)
2832 htab->elf.dynobj = abfd;
2834 sreloc = _bfd_elf_make_dynamic_reloc_section
2835 (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE);
2841 /* If this is a global symbol, we count the number of
2842 relocations we need for this symbol. */
2845 head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs;
2849 /* Track dynamic relocs needed for local syms too.
2850 We really need local syms available to do this
2855 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2859 vpp = &elf_section_data (s)->local_dynrel;
2860 head = (struct elf_dyn_relocs **)vpp;
2864 if (p == NULL || p->sec != sec)
2866 bfd_size_type amt = sizeof *p;
2867 p = bfd_alloc (htab->elf.dynobj, amt);
2878 if (r_type == R_C6000_DSBT_INDEX)
2883 case R_C6000_SBR_U15_B:
2884 case R_C6000_SBR_U15_H:
2885 case R_C6000_SBR_U15_W:
2886 case R_C6000_SBR_S16:
2887 case R_C6000_SBR_L16_B:
2888 case R_C6000_SBR_L16_H:
2889 case R_C6000_SBR_L16_W:
2890 case R_C6000_SBR_H16_B:
2891 case R_C6000_SBR_H16_H:
2892 case R_C6000_SBR_H16_W:
2893 if (h != NULL && info->executable)
2895 /* For B14-relative addresses, we might need a copy
2910 elf32_tic6x_add_symbol_hook (bfd *abfd,
2911 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2912 Elf_Internal_Sym *sym,
2913 const char **namep ATTRIBUTE_UNUSED,
2914 flagword *flagsp ATTRIBUTE_UNUSED,
2918 switch (sym->st_shndx)
2920 case SHN_TIC6X_SCOMMON:
2921 *secp = bfd_make_section_old_way (abfd, ".scommon");
2922 (*secp)->flags |= SEC_IS_COMMON;
2923 *valp = sym->st_size;
2924 bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value));
2932 elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
2934 elf_symbol_type *elfsym;
2936 elfsym = (elf_symbol_type *) asym;
2937 switch (elfsym->internal_elf_sym.st_shndx)
2939 case SHN_TIC6X_SCOMMON:
2940 if (tic6x_elf_scom_section.name == NULL)
2942 /* Initialize the small common section. */
2943 tic6x_elf_scom_section.name = ".scommon";
2944 tic6x_elf_scom_section.flags = SEC_IS_COMMON;
2945 tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section;
2946 tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol;
2947 tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr;
2948 tic6x_elf_scom_symbol.name = ".scommon";
2949 tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM;
2950 tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section;
2951 tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol;
2953 asym->section = &tic6x_elf_scom_section;
2954 asym->value = elfsym->internal_elf_sym.st_size;
2960 elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
2961 const char *name ATTRIBUTE_UNUSED,
2962 Elf_Internal_Sym *sym,
2963 asection *input_sec,
2964 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2966 /* If we see a common symbol, which implies a relocatable link, then
2967 if a symbol was small common in an input file, mark it as small
2968 common in the output file. */
2969 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
2970 sym->st_shndx = SHN_TIC6X_SCOMMON;
2976 elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2980 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
2982 *retval = SHN_TIC6X_SCOMMON;
2989 /* Allocate space in .plt, .got and associated reloc sections for
2993 elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2995 struct bfd_link_info *info;
2996 struct elf32_tic6x_link_hash_table *htab;
2997 struct elf32_tic6x_link_hash_entry *eh;
2998 struct elf_dyn_relocs *p;
3000 if (h->root.type == bfd_link_hash_indirect)
3003 if (h->root.type == bfd_link_hash_warning)
3004 /* When warning symbols are created, they **replace** the "real"
3005 entry in the hash table, thus we never get to see the real
3006 symbol in a hash traversal. So look at it now. */
3007 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3008 eh = (struct elf32_tic6x_link_hash_entry *) h;
3010 info = (struct bfd_link_info *) inf;
3011 htab = elf32_tic6x_hash_table (info);
3013 if (htab->elf.dynamic_sections_created && h->plt.refcount > 0)
3015 /* Make sure this symbol is output as a dynamic symbol.
3016 Undefined weak syms won't yet be marked as dynamic. */
3017 if (h->dynindx == -1 && !h->forced_local)
3019 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3024 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
3026 asection *s = htab->elf.splt;
3028 /* If this is the first .plt entry, make room for the special
3031 s->size += PLT_ENTRY_SIZE;
3033 h->plt.offset = s->size;
3035 /* If this symbol is not defined in a regular file, and we are
3036 not generating a shared library, then set the symbol to this
3037 location in the .plt. This is required to make function
3038 pointers compare as equal between the normal executable and
3039 the shared library. */
3040 if (! info->shared && !h->def_regular)
3042 h->root.u.def.section = s;
3043 h->root.u.def.value = h->plt.offset;
3046 /* Make room for this entry. */
3047 s->size += PLT_ENTRY_SIZE;
3048 /* We also need to make an entry in the .got.plt section, which
3049 will be placed in the .got section by the linker script. */
3050 htab->elf.sgotplt->size += 4;
3051 /* We also need to make an entry in the .rel.plt section. */
3052 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
3056 h->plt.offset = (bfd_vma) -1;
3062 h->plt.offset = (bfd_vma) -1;
3066 if (h->got.refcount > 0)
3070 /* Make sure this symbol is output as a dynamic symbol.
3071 Undefined weak syms won't yet be marked as dynamic. */
3072 if (h->dynindx == -1
3073 && !h->forced_local)
3075 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3080 h->got.offset = s->size;
3083 if (!(ELF_ST_VISIBILITY (h->other)
3084 && h->root.type == bfd_link_hash_undefweak))
3085 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3088 h->got.offset = (bfd_vma) -1;
3090 if (eh->dyn_relocs == NULL)
3093 /* Discard relocs on undefined weak syms with non-default
3095 if (info->shared || elf32_tic6x_using_dsbt (htab->obfd))
3097 /* We use the pc_count field to hold the number of
3098 R_C6000_DSBT_INDEX relocs. */
3099 if (htab->params.dsbt_index != 0)
3101 struct elf_dyn_relocs **pp;
3103 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3105 p->count -= p->pc_count;
3114 if (eh->dyn_relocs != NULL
3115 && h->root.type == bfd_link_hash_undefweak)
3117 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3118 eh->dyn_relocs = NULL;
3120 /* Make sure undefined weak symbols are output as a dynamic
3122 else if (h->dynindx == -1
3123 && !h->forced_local)
3125 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3131 /* Finally, allocate space. */
3132 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3136 sreloc = elf_section_data (p->sec)->sreloc;
3138 BFD_ASSERT (sreloc != NULL);
3139 sreloc->size += p->count * sizeof (Elf32_External_Rela);
3145 /* Find any dynamic relocs that apply to read-only sections. */
3148 elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3150 struct elf32_tic6x_link_hash_entry *eh;
3151 struct elf_dyn_relocs *p;
3153 if (h->root.type == bfd_link_hash_warning)
3154 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3156 eh = (struct elf32_tic6x_link_hash_entry *) h;
3157 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3159 asection *s = p->sec->output_section;
3161 if (s != NULL && (s->flags & SEC_READONLY) != 0)
3163 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3165 info->flags |= DF_TEXTREL;
3167 /* Not an error, just cut short the traversal. */
3174 /* Set the sizes of the dynamic sections. */
3177 elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
3179 struct elf32_tic6x_link_hash_table *htab;
3185 htab = elf32_tic6x_hash_table (info);
3186 dynobj = htab->elf.dynobj;
3190 if (htab->elf.dynamic_sections_created)
3192 /* Set the contents of the .interp section to the interpreter. */
3193 if (info->executable)
3195 s = bfd_get_section_by_name (dynobj, ".interp");
3198 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3199 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3203 /* Set up .got offsets for local syms, and space for local dynamic
3205 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
3207 bfd_signed_vma *local_got;
3208 bfd_signed_vma *end_local_got;
3209 char *local_tls_type;
3210 bfd_vma *local_tlsdesc_gotent;
3211 bfd_size_type locsymcount;
3212 Elf_Internal_Shdr *symtab_hdr;
3215 for (s = ibfd->sections; s != NULL; s = s->next)
3217 struct elf_dyn_relocs *p;
3219 for (p = ((struct elf_dyn_relocs *)
3220 elf_section_data (s)->local_dynrel);
3224 if (!bfd_is_abs_section (p->sec)
3225 && bfd_is_abs_section (p->sec->output_section))
3227 /* Input section has been discarded, either because
3228 it is a copy of a linkonce section or due to
3229 linker script /DISCARD/, so we'll be discarding
3232 else if (p->count != 0)
3234 srel = elf_section_data (p->sec)->sreloc;
3235 srel->size += p->count * sizeof (Elf32_External_Rela);
3236 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3237 info->flags |= DF_TEXTREL;
3242 local_got = elf_local_got_refcounts (ibfd);
3246 symtab_hdr = &elf_symtab_hdr (ibfd);
3247 locsymcount = symtab_hdr->sh_info;
3248 end_local_got = local_got + locsymcount;
3250 srel = htab->elf.srelgot;
3251 for (; local_got < end_local_got;
3252 ++local_got, ++local_tls_type, ++local_tlsdesc_gotent)
3256 *local_got = s->size;
3259 if (info->shared || elf32_tic6x_using_dsbt (output_bfd))
3261 srel->size += sizeof (Elf32_External_Rela);
3265 *local_got = (bfd_vma) -1;
3269 /* Allocate global sym .plt and .got entries, and space for global
3270 sym dynamic relocs. */
3271 elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info);
3273 /* We now have determined the sizes of the various dynamic sections.
3274 Allocate memory for them. */
3276 for (s = dynobj->sections; s != NULL; s = s->next)
3278 bfd_boolean strip_section = TRUE;
3280 if ((s->flags & SEC_LINKER_CREATED) == 0)
3283 if (s == htab->dsbt)
3284 s->size = 4 * htab->params.dsbt_size;
3285 else if (s == htab->elf.splt
3286 || s == htab->elf.sgot
3287 || s == htab->elf.sgotplt
3288 || s == htab->sdynbss)
3290 /* Strip this section if we don't need it; see the
3292 /* We'd like to strip these sections if they aren't needed, but if
3293 we've exported dynamic symbols from them we must leave them.
3294 It's too late to tell BFD to get rid of the symbols. */
3296 if (htab->elf.hplt != NULL)
3297 strip_section = FALSE;
3299 /* Round up the size of the PLT section to a multiple of 32. */
3300 if (s == htab->elf.splt && s->size > 0)
3301 s->size = (s->size + 31) & ~(bfd_vma)31;
3303 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
3306 && s != htab->elf.srelplt)
3309 /* We use the reloc_count field as a counter if we need
3310 to copy relocs into the output file. */
3315 /* It's not one of our sections, so don't allocate space. */
3321 /* If we don't need this section, strip it from the
3322 output file. This is mostly to handle .rel.bss and
3323 .rel.plt. We must create both sections in
3324 create_dynamic_sections, because they must be created
3325 before the linker maps input sections to output
3326 sections. The linker does that before
3327 adjust_dynamic_symbol is called, and it is that
3328 function which decides whether anything needs to go
3329 into these sections. */
3331 s->flags |= SEC_EXCLUDE;
3335 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3338 /* Allocate memory for the section contents. We use bfd_zalloc
3339 here in case unused entries are not reclaimed before the
3340 section's contents are written out. This should not happen,
3341 but this way if it does, we get a R_C6000_NONE reloc instead
3343 s->contents = bfd_zalloc (dynobj, s->size);
3344 if (s->contents == NULL)
3348 if (htab->elf.dynamic_sections_created)
3350 /* Add some entries to the .dynamic section. We fill in the
3351 values later, in elf32_tic6x_finish_dynamic_sections, but we
3352 must add the entries now so that we get the correct size for
3353 the .dynamic section. The DT_DEBUG entry is filled in by the
3354 dynamic linker and used by the debugger. */
3355 #define add_dynamic_entry(TAG, VAL) \
3356 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3358 if (info->executable)
3360 if (!add_dynamic_entry (DT_DEBUG, 0))
3364 if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0)
3365 || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size)
3366 || !add_dynamic_entry (DT_C6000_DSBT_INDEX,
3367 htab->params.dsbt_index))
3370 if (htab->elf.splt->size != 0)
3372 if (!add_dynamic_entry (DT_PLTGOT, 0)
3373 || !add_dynamic_entry (DT_PLTRELSZ, 0)
3374 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3375 || !add_dynamic_entry (DT_JMPREL, 0))
3381 if (!add_dynamic_entry (DT_RELA, 0)
3382 || !add_dynamic_entry (DT_RELASZ, 0)
3383 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3386 /* If any dynamic relocs apply to a read-only section,
3387 then we need a DT_TEXTREL entry. */
3388 if ((info->flags & DF_TEXTREL) == 0)
3389 elf_link_hash_traverse (&htab->elf,
3390 elf32_tic6x_readonly_dynrelocs, info);
3392 if ((info->flags & DF_TEXTREL) != 0)
3394 if (!add_dynamic_entry (DT_TEXTREL, 0))
3399 #undef add_dynamic_entry
3404 /* This function is called after all the input files have been read,
3405 and the input sections have been assigned to output sections. */
3408 elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
3410 if (elf32_tic6x_using_dsbt (output_bfd) && !info->relocatable)
3412 struct elf_link_hash_entry *h;
3414 /* Force a PT_GNU_STACK segment to be created. */
3415 if (! elf_tdata (output_bfd)->stack_flags)
3416 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
3418 /* Define __stacksize if it's not defined yet. */
3419 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3420 FALSE, FALSE, FALSE);
3421 if (! h || h->root.type != bfd_link_hash_defined
3422 || h->type != STT_OBJECT
3425 struct bfd_link_hash_entry *bh = NULL;
3427 if (!(_bfd_generic_link_add_one_symbol
3428 (info, output_bfd, "__stacksize",
3429 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
3430 (const char *) NULL, FALSE,
3431 get_elf_backend_data (output_bfd)->collect, &bh)))
3434 h = (struct elf_link_hash_entry *) bh;
3436 h->type = STT_OBJECT;
3443 elf32_tic6x_modify_program_headers (bfd *output_bfd,
3444 struct bfd_link_info *info)
3446 struct elf_obj_tdata *tdata = elf_tdata (output_bfd);
3447 struct elf_segment_map *m;
3448 Elf_Internal_Phdr *p;
3450 /* objcopy and strip preserve what's already there using
3451 elf32_tic6x_copy_private_bfd_data (). */
3455 for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++)
3456 if (m->p_type == PT_GNU_STACK)
3461 struct elf_link_hash_entry *h;
3463 /* Obtain the pointer to the __stacksize symbol. */
3464 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3465 FALSE, FALSE, FALSE);
3468 while (h->root.type == bfd_link_hash_indirect
3469 || h->root.type == bfd_link_hash_warning)
3470 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3471 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
3474 /* Set the header p_memsz from the symbol value. We
3475 intentionally ignore the symbol section. */
3476 if (h && h->root.type == bfd_link_hash_defined)
3477 p->p_memsz = h->root.u.def.value;
3479 p->p_memsz = DEFAULT_STACK_SIZE;
3488 elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3489 struct bfd_link_info *info)
3491 struct elf32_tic6x_link_hash_table *htab;
3495 htab = elf32_tic6x_hash_table (info);
3496 dynobj = htab->elf.dynobj;
3497 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3499 if (elf_hash_table (info)->dynamic_sections_created)
3501 Elf32_External_Dyn * dyncon;
3502 Elf32_External_Dyn * dynconend;
3504 BFD_ASSERT (sdyn != NULL);
3506 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3507 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3509 for (; dyncon < dynconend; dyncon++)
3511 Elf_Internal_Dyn dyn;
3514 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3521 case DT_C6000_DSBT_BASE:
3523 dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset);
3527 s = htab->elf.sgotplt;
3528 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3532 s = htab->elf.srelplt;
3533 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3537 s = htab->elf.srelplt;
3538 dyn.d_un.d_val = s->size;
3541 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3544 /* Fill in the first entry in the procedure linkage table. */
3545 if (htab->elf.splt && htab->elf.splt->size > 0)
3547 bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma
3548 + htab->elf.sgotplt->output_offset
3549 - htab->dsbt->output_section->vma
3550 - htab->dsbt->output_offset) / 4;
3552 /* ldw .D2T2 *+b14[$GOT(0)],b2 */
3553 bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e,
3554 htab->elf.splt->contents);
3555 /* ldw .D2T2 *+b14[$GOT(4)],b1 */
3556 bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e,
3557 htab->elf.splt->contents + 4);
3559 bfd_put_32 (output_bfd, 0x00004000,
3560 htab->elf.splt->contents + 8);
3562 bfd_put_32 (output_bfd, 0x00080362,
3563 htab->elf.splt->contents + 12);
3565 bfd_put_32 (output_bfd, 0x00008000,
3566 htab->elf.splt->contents + 16);
3568 elf_section_data (htab->elf.splt->output_section)
3569 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
3576 /* Return address for Ith PLT stub in section PLT, for relocation REL
3577 or (bfd_vma) -1 if it should not be included. */
3580 elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt,
3581 const arelent *rel ATTRIBUTE_UNUSED)
3583 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3587 elf32_tic6x_obj_attrs_arg_type (int tag)
3589 if (tag == Tag_ABI_compatibility)
3590 return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL;
3592 return ATTR_TYPE_FLAG_STR_VAL;
3594 return ATTR_TYPE_FLAG_INT_VAL;
3598 elf32_tic6x_obj_attrs_order (int num)
3600 if (num == LEAST_KNOWN_OBJ_ATTRIBUTE)
3601 return Tag_ABI_conformance;
3602 if ((num - 1) < Tag_ABI_conformance)
3608 elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag)
3610 if ((tag & 127) < 64)
3613 (_("%B: error: unknown mandatory EABI object attribute %d"),
3615 bfd_set_error (bfd_error_bad_value);
3621 (_("%B: warning: unknown EABI object attribute %d"),
3627 /* Merge the Tag_ISA attribute values ARCH1 and ARCH2
3628 and return the merged value. At present, all merges succeed, so no
3629 return value for errors is defined. */
3632 elf32_tic6x_merge_arch_attributes (int arch1, int arch2)
3634 int min_arch, max_arch;
3636 min_arch = (arch1 < arch2 ? arch1 : arch2);
3637 max_arch = (arch1 > arch2 ? arch1 : arch2);
3639 /* In most cases, the numerically greatest value is the correct
3640 merged value, but merging C64 and C67 results in C674X. */
3641 if ((min_arch == C6XABI_Tag_ISA_C67X
3642 || min_arch == C6XABI_Tag_ISA_C67XP)
3643 && (max_arch == C6XABI_Tag_ISA_C64X
3644 || max_arch == C6XABI_Tag_ISA_C64XP))
3645 return C6XABI_Tag_ISA_C674X;
3650 /* Convert a Tag_ABI_array_object_alignment or
3651 Tag_ABI_array_object_align_expected tag value TAG to a
3652 corresponding alignment value; return the alignment, or -1 for an
3653 unknown tag value. */
3656 elf32_tic6x_tag_to_array_alignment (int tag)
3674 /* Convert a Tag_ABI_array_object_alignment or
3675 Tag_ABI_array_object_align_expected alignment ALIGN to a
3676 corresponding tag value; return the tag value. */
3679 elf32_tic6x_array_alignment_to_tag (int align)
3697 /* Merge attributes from IBFD and OBFD, returning TRUE if the merge
3698 succeeded, FALSE otherwise. */
3701 elf32_tic6x_merge_attributes (bfd *ibfd, bfd *obfd)
3703 bfd_boolean result = TRUE;
3704 obj_attribute *in_attr;
3705 obj_attribute *out_attr;
3707 int array_align_in, array_align_out, array_expect_in, array_expect_out;
3709 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3711 /* This is the first object. Copy the attributes. */
3712 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3714 out_attr = elf_known_obj_attributes_proc (obfd);
3716 /* Use the Tag_null value to indicate the attributes have been
3723 in_attr = elf_known_obj_attributes_proc (ibfd);
3724 out_attr = elf_known_obj_attributes_proc (obfd);
3726 /* No specification yet for handling of unknown attributes, so just
3727 ignore them and handle known ones. */
3729 if (out_attr[Tag_ABI_stack_align_preserved].i
3730 < in_attr[Tag_ABI_stack_align_needed].i)
3733 (_("error: %B requires more stack alignment than %B preserves"),
3737 if (in_attr[Tag_ABI_stack_align_preserved].i
3738 < out_attr[Tag_ABI_stack_align_needed].i)
3741 (_("error: %B requires more stack alignment than %B preserves"),
3746 array_align_in = elf32_tic6x_tag_to_array_alignment
3747 (in_attr[Tag_ABI_array_object_alignment].i);
3748 if (array_align_in == -1)
3751 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3755 array_align_out = elf32_tic6x_tag_to_array_alignment
3756 (out_attr[Tag_ABI_array_object_alignment].i);
3757 if (array_align_out == -1)
3760 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3764 array_expect_in = elf32_tic6x_tag_to_array_alignment
3765 (in_attr[Tag_ABI_array_object_align_expected].i);
3766 if (array_expect_in == -1)
3769 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3773 array_expect_out = elf32_tic6x_tag_to_array_alignment
3774 (out_attr[Tag_ABI_array_object_align_expected].i);
3775 if (array_expect_out == -1)
3778 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3783 if (array_align_out < array_expect_in)
3786 (_("error: %B requires more array alignment than %B preserves"),
3790 if (array_align_in < array_expect_out)
3793 (_("error: %B requires more array alignment than %B preserves"),
3798 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++)
3803 out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i,
3807 case Tag_ABI_wchar_t:
3808 if (out_attr[i].i == 0)
3809 out_attr[i].i = in_attr[i].i;
3810 if (out_attr[i].i != 0
3811 && in_attr[i].i != 0
3812 && out_attr[i].i != in_attr[i].i)
3815 (_("warning: %B and %B differ in wchar_t size"), obfd, ibfd);
3819 case Tag_ABI_stack_align_needed:
3820 if (out_attr[i].i < in_attr[i].i)
3821 out_attr[i].i = in_attr[i].i;
3824 case Tag_ABI_stack_align_preserved:
3825 if (out_attr[i].i > in_attr[i].i)
3826 out_attr[i].i = in_attr[i].i;
3830 if (out_attr[i].i != in_attr[i].i)
3833 (_("warning: %B and %B differ in whether code is "
3834 "compiled for DSBT"),
3841 if (out_attr[i].i > in_attr[i].i)
3842 out_attr[i].i = in_attr[i].i;
3845 case Tag_ABI_array_object_alignment:
3846 if (array_align_out != -1
3847 && array_align_in != -1
3848 && array_align_out > array_align_in)
3850 = elf32_tic6x_array_alignment_to_tag (array_align_in);
3853 case Tag_ABI_array_object_align_expected:
3854 if (array_expect_out != -1
3855 && array_expect_in != -1
3856 && array_expect_out < array_expect_in)
3858 = elf32_tic6x_array_alignment_to_tag (array_expect_in);
3861 case Tag_ABI_conformance:
3862 /* Merging for this attribute is not specified. As on ARM,
3863 treat a missing attribute as no claim to conform and only
3864 merge identical values. */
3865 if (out_attr[i].s == NULL
3866 || in_attr[i].s == NULL
3867 || strcmp (out_attr[i].s,
3869 out_attr[i].s = NULL;
3872 case Tag_ABI_compatibility:
3873 /* Merged in _bfd_elf_merge_object_attributes. */
3878 = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i);
3882 if (in_attr[i].type && !out_attr[i].type)
3883 out_attr[i].type = in_attr[i].type;
3886 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
3887 if (!_bfd_elf_merge_object_attributes (ibfd, obfd))
3890 result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd);
3896 elf32_tic6x_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3898 if (!_bfd_generic_verify_endian_match (ibfd, obfd))
3901 if (!elf32_tic6x_merge_attributes (ibfd, obfd))
3908 elf32_tic6x_copy_private_data (bfd * ibfd, bfd * obfd)
3910 _bfd_elf_copy_private_bfd_data (ibfd, obfd);
3912 if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (obfd))
3915 /* Copy the stack size. */
3916 if (elf_tdata (ibfd)->phdr && elf_tdata (obfd)->phdr
3917 && elf32_tic6x_using_dsbt (ibfd) && elf32_tic6x_using_dsbt (obfd))
3921 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
3922 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
3924 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
3926 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
3927 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
3929 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
3931 /* Rewrite the phdrs, since we're only called after they
3932 were first written. */
3934 (bfd_signed_vma) get_elf_backend_data (obfd)
3935 ->s->sizeof_ehdr, SEEK_SET) != 0
3936 || get_elf_backend_data (obfd)->s
3937 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
3938 elf_elfheader (obfd)->e_phnum) != 0)
3950 #define TARGET_LITTLE_SYM bfd_elf32_tic6x_le_vec
3951 #define TARGET_LITTLE_NAME "elf32-tic6x-le"
3952 #define TARGET_BIG_SYM bfd_elf32_tic6x_be_vec
3953 #define TARGET_BIG_NAME "elf32-tic6x-be"
3954 #define ELF_ARCH bfd_arch_tic6x
3955 #define ELF_TARGET_ID TIC6X_ELF_DATA
3956 #define ELF_MACHINE_CODE EM_TI_C6000
3957 #define ELF_MAXPAGESIZE 0x1000
3958 #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
3959 #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
3960 #define bfd_elf32_bfd_copy_private_bfd_data elf32_tic6x_copy_private_data
3961 #define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
3962 #define bfd_elf32_mkobject elf32_tic6x_mkobject
3963 #define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
3964 #define bfd_elf32_bfd_link_hash_table_free elf32_tic6x_link_hash_table_free
3965 #define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
3966 #define elf_backend_can_gc_sections 1
3967 #define elf_backend_default_use_rela_p 1
3968 #define elf_backend_may_use_rel_p 1
3969 #define elf_backend_may_use_rela_p 1
3970 #define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
3971 #define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
3972 #define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
3973 #define elf_backend_obj_attrs_section ".c6xabi.attributes"
3974 #define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
3975 #define elf_backend_obj_attrs_vendor "c6xabi"
3976 #define elf_backend_can_refcount 1
3977 #define elf_backend_want_got_plt 1
3978 #define elf_backend_want_dynbss 1
3979 #define elf_backend_plt_readonly 1
3980 #define elf_backend_rela_normal 1
3981 #define elf_backend_got_header_size 8
3982 #define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook
3983 #define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections
3984 #define elf_backend_modify_program_headers \
3985 elf32_tic6x_modify_program_headers
3986 #define elf_backend_create_dynamic_sections \
3987 elf32_tic6x_create_dynamic_sections
3988 #define elf_backend_adjust_dynamic_symbol \
3989 elf32_tic6x_adjust_dynamic_symbol
3990 #define elf_backend_check_relocs elf32_tic6x_check_relocs
3991 #define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
3992 #define elf_backend_symbol_processing elf32_tic6x_symbol_processing
3993 #define elf_backend_link_output_symbol_hook \
3994 elf32_tic6x_link_output_symbol_hook
3995 #define elf_backend_section_from_bfd_section \
3996 elf32_tic6x_section_from_bfd_section
3997 #define elf_backend_relocate_section elf32_tic6x_relocate_section
3998 #define elf_backend_finish_dynamic_symbol \
3999 elf32_tic6x_finish_dynamic_symbol
4000 #define elf_backend_always_size_sections \
4001 elf32_tic6x_always_size_sections
4002 #define elf_backend_size_dynamic_sections \
4003 elf32_tic6x_size_dynamic_sections
4004 #define elf_backend_finish_dynamic_sections \
4005 elf32_tic6x_finish_dynamic_sections
4006 #define bfd_elf32_bfd_final_link \
4007 elf32_tic6x_final_link
4008 #define elf_info_to_howto elf32_tic6x_info_to_howto
4009 #define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
4011 #undef elf_backend_omit_section_dynsym
4012 #define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
4013 #define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
4016 #include "elf32-target.h"