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 /* Update the got entry reference counts for the section being removed. */
1845 elf32_tic6x_gc_sweep_hook (bfd
*abfd
,
1846 struct bfd_link_info
*info
,
1848 const Elf_Internal_Rela
*relocs
)
1850 struct elf32_tic6x_link_hash_table
*htab
;
1851 Elf_Internal_Shdr
*symtab_hdr
;
1852 struct elf_link_hash_entry
**sym_hashes
;
1853 bfd_signed_vma
*local_got_refcounts
;
1854 const Elf_Internal_Rela
*rel
, *relend
;
1856 if (info
->relocatable
)
1859 htab
= elf32_tic6x_hash_table (info
);
1863 elf_section_data (sec
)->local_dynrel
= NULL
;
1865 symtab_hdr
= &elf_symtab_hdr (abfd
);
1866 sym_hashes
= elf_sym_hashes (abfd
);
1867 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1869 relend
= relocs
+ sec
->reloc_count
;
1870 for (rel
= relocs
; rel
< relend
; rel
++)
1872 unsigned long r_symndx
;
1873 unsigned int r_type
;
1874 struct elf_link_hash_entry
*h
= NULL
;
1876 r_symndx
= ELF32_R_SYM (rel
->r_info
);
1877 if (r_symndx
>= symtab_hdr
->sh_info
)
1879 struct elf32_tic6x_link_hash_entry
*eh
;
1880 struct elf_dyn_relocs
**pp
;
1881 struct elf_dyn_relocs
*p
;
1883 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1884 while (h
->root
.type
== bfd_link_hash_indirect
1885 || h
->root
.type
== bfd_link_hash_warning
)
1886 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1887 eh
= (struct elf32_tic6x_link_hash_entry
*) h
;
1889 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
1892 /* Everything must go for SEC. */
1898 r_type
= ELF32_R_TYPE (rel
->r_info
);
1902 case R_C6000_SBR_GOT_U15_W
:
1903 case R_C6000_SBR_GOT_L16_W
:
1904 case R_C6000_SBR_GOT_H16_W
:
1905 case R_C6000_EHTYPE
:
1908 if (h
->got
.refcount
> 0)
1909 h
->got
.refcount
-= 1;
1911 else if (local_got_refcounts
!= NULL
)
1913 if (local_got_refcounts
[r_symndx
] > 0)
1914 local_got_refcounts
[r_symndx
] -= 1;
1926 /* Adjust a symbol defined by a dynamic object and referenced by a
1927 regular object. The current definition is in some section of the
1928 dynamic object, but we're not including those sections. We have to
1929 change the definition to something the rest of the link can
1933 elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1934 struct elf_link_hash_entry
*h
)
1936 struct elf32_tic6x_link_hash_table
*htab
;
1940 dynobj
= elf_hash_table (info
)->dynobj
;
1942 /* Make sure we know what is going on here. */
1943 BFD_ASSERT (dynobj
!= NULL
1945 || h
->u
.weakdef
!= NULL
1946 || (h
->def_dynamic
&& h
->ref_regular
&& !h
->def_regular
)));
1948 /* If this is a function, put it in the procedure linkage table. We
1949 will fill in the contents of the procedure linkage table later,
1950 when we know the address of the .got section. */
1951 if (h
->type
== STT_FUNC
1954 if (h
->plt
.refcount
<= 0
1955 || SYMBOL_CALLS_LOCAL (info
, h
)
1956 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
1957 && h
->root
.type
== bfd_link_hash_undefweak
))
1959 /* This case can occur if we saw a PLT32 reloc in an input
1960 file, but the symbol was never referred to by a dynamic
1961 object, or if all references were garbage collected. In
1962 such a case, we don't actually need to build a procedure
1963 linkage table, and we can just do a PC32 reloc instead. */
1964 h
->plt
.offset
= (bfd_vma
) -1;
1971 /* If this is a weak symbol, and there is a real definition, the
1972 processor independent code will have arranged for us to see the
1973 real definition first, and we can just use the same value. */
1974 if (h
->u
.weakdef
!= NULL
)
1976 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
1977 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
1978 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
1979 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
1980 h
->non_got_ref
= h
->u
.weakdef
->non_got_ref
;
1984 /* This is a reference to a symbol defined by a dynamic object which
1985 is not a function. */
1987 /* If we are creating a shared library, we must presume that the
1988 only references to the symbol are via the global offset table.
1989 For such cases we need not do anything here; the relocations will
1990 be handled correctly by relocate_section. */
1994 /* If there are no references to this symbol that do not use the
1995 GOT, we don't need to generate a copy reloc. */
1996 if (!h
->non_got_ref
)
1999 /* If -z nocopyreloc was given, we won't generate them either. */
2000 if (info
->nocopyreloc
)
2006 htab
= elf32_tic6x_hash_table (info
);
2012 (*_bfd_error_handler
) (_("dynamic variable `%s' is zero size"),
2013 h
->root
.root
.string
);
2017 /* We must allocate the symbol in our .dynbss section, which will
2018 become part of the .bss section of the executable. There will be
2019 an entry for this symbol in the .dynsym section. The dynamic
2020 object will contain position independent code, so all references
2021 from the dynamic object to this symbol will go through the global
2022 offset table. The dynamic linker will use the .dynsym entry to
2023 determine the address it must put in the global offset table, so
2024 both the dynamic object and the regular object will refer to the
2025 same memory location for the variable. */
2027 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
2028 copy the initial value out of the dynamic object and into the
2029 runtime process image. */
2030 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
2032 htab
->srelbss
->size
+= sizeof (Elf32_External_Rela
);
2038 return _bfd_elf_adjust_dynamic_copy (h
, s
);
2042 elf32_tic6x_new_section_hook (bfd
*abfd
, asection
*sec
)
2046 ret
= _bfd_elf_new_section_hook (abfd
, sec
);
2047 sec
->use_rela_p
= elf32_tic6x_tdata (abfd
)->use_rela_p
;
2052 /* Return true if relocation REL against section SEC is a REL rather
2053 than RELA relocation. RELOCS is the first relocation in the
2054 section and ABFD is the bfd that contains SEC. */
2057 elf32_tic6x_rel_relocation_p (bfd
*abfd
, asection
*sec
,
2058 const Elf_Internal_Rela
*relocs
,
2059 const Elf_Internal_Rela
*rel
)
2061 Elf_Internal_Shdr
*rel_hdr
;
2062 const struct elf_backend_data
*bed
;
2064 /* To determine which flavor of relocation this is, we depend on the
2065 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
2066 rel_hdr
= elf_section_data (sec
)->rel
.hdr
;
2067 if (rel_hdr
== NULL
)
2069 bed
= get_elf_backend_data (abfd
);
2070 return ((size_t) (rel
- relocs
)
2071 < NUM_SHDR_ENTRIES (rel_hdr
) * bed
->s
->int_rels_per_ext_rel
);
2074 /* We need dynamic symbols for every section, since segments can
2075 relocate independently. */
2077 elf32_tic6x_link_omit_section_dynsym (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2078 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2081 switch (elf_section_data (p
)->this_hdr
.sh_type
)
2085 /* If sh_type is yet undecided, assume it could be
2086 SHT_PROGBITS/SHT_NOBITS. */
2090 /* There shouldn't be section relative relocations
2091 against any other section. */
2098 elf32_tic6x_relocate_section (bfd
*output_bfd
,
2099 struct bfd_link_info
*info
,
2101 asection
*input_section
,
2103 Elf_Internal_Rela
*relocs
,
2104 Elf_Internal_Sym
*local_syms
,
2105 asection
**local_sections
)
2107 struct elf32_tic6x_link_hash_table
*htab
;
2108 Elf_Internal_Shdr
*symtab_hdr
;
2109 struct elf_link_hash_entry
**sym_hashes
;
2110 bfd_vma
*local_got_offsets
;
2111 Elf_Internal_Rela
*rel
;
2112 Elf_Internal_Rela
*relend
;
2113 bfd_boolean ok
= TRUE
;
2115 htab
= elf32_tic6x_hash_table (info
);
2116 symtab_hdr
= & elf_symtab_hdr (input_bfd
);
2117 sym_hashes
= elf_sym_hashes (input_bfd
);
2118 local_got_offsets
= elf_local_got_offsets (input_bfd
);
2120 relend
= relocs
+ input_section
->reloc_count
;
2122 for (rel
= relocs
; rel
< relend
; rel
++)
2125 unsigned long r_symndx
;
2127 reloc_howto_type
*howto
;
2128 Elf_Internal_Sym
*sym
;
2130 struct elf_link_hash_entry
*h
;
2131 bfd_vma off
, relocation
;
2132 bfd_boolean unresolved_reloc
;
2133 bfd_reloc_status_type r
;
2134 struct bfd_link_hash_entry
*sbh
;
2137 r_type
= ELF32_R_TYPE (rel
->r_info
);
2138 r_symndx
= ELF32_R_SYM (rel
->r_info
);
2140 is_rel
= elf32_tic6x_rel_relocation_p (input_bfd
, input_section
,
2144 elf32_tic6x_info_to_howto_rel (input_bfd
, &bfd_reloc
, rel
);
2146 elf32_tic6x_info_to_howto (input_bfd
, &bfd_reloc
, rel
);
2147 howto
= bfd_reloc
.howto
;
2150 bfd_set_error (bfd_error_bad_value
);
2157 unresolved_reloc
= FALSE
;
2159 if (r_symndx
< symtab_hdr
->sh_info
)
2161 sym
= local_syms
+ r_symndx
;
2162 sec
= local_sections
[r_symndx
];
2163 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
2169 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
2170 r_symndx
, symtab_hdr
, sym_hashes
,
2172 unresolved_reloc
, warned
);
2175 if (sec
!= NULL
&& elf_discarded_section (sec
))
2176 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
2177 rel
, relend
, howto
, contents
);
2179 if (info
->relocatable
)
2183 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
2186 relocation
= sec
->output_offset
+ sym
->st_value
;
2187 r
= _bfd_relocate_contents (howto
, input_bfd
, relocation
,
2188 contents
+ rel
->r_offset
);
2198 case R_C6000_FPHEAD
:
2200 /* No action needed. */
2203 case R_C6000_PCR_S21
:
2204 /* A branch to an undefined weak symbol is turned into a
2205 "b .s2 B3" instruction if the existing insn is of the
2206 form "b .s2 symbol". */
2207 if (h
? h
->root
.type
== bfd_link_hash_undefweak
2208 && (htab
->elf
.splt
== NULL
|| h
->plt
.offset
== (bfd_vma
) -1)
2209 : r_symndx
!= STN_UNDEF
&& bfd_is_und_section (sec
))
2211 unsigned long oldval
;
2212 oldval
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
2214 if ((oldval
& 0x7e) == 0x12)
2216 oldval
&= 0xF0000001;
2217 bfd_put_32 (input_bfd
, oldval
| 0x000c0362,
2218 contents
+ rel
->r_offset
);
2224 case R_C6000_PCR_S12
:
2225 case R_C6000_PCR_S10
:
2226 case R_C6000_PCR_S7
:
2228 && h
->plt
.offset
!= (bfd_vma
) -1
2229 && htab
->elf
.splt
!= NULL
)
2231 relocation
= (htab
->elf
.splt
->output_section
->vma
2232 + htab
->elf
.splt
->output_offset
2236 /* Generic PC-relative handling produces a value relative to
2237 the exact location of the relocation. Adjust it to be
2238 relative to the start of the fetch packet instead. */
2239 relocation
+= (input_section
->output_section
->vma
2240 + input_section
->output_offset
2241 + rel
->r_offset
) & 0x1f;
2242 unresolved_reloc
= FALSE
;
2245 case R_C6000_DSBT_INDEX
:
2246 relocation
= elf32_tic6x_hash_table (info
)->params
.dsbt_index
;
2247 if (!info
->shared
|| relocation
!= 0)
2254 case R_C6000_ABS_S16
:
2255 case R_C6000_ABS_L16
:
2256 case R_C6000_ABS_H16
:
2257 /* When generating a shared object or relocatable executable, these
2258 relocations are copied into the output file to be resolved at
2260 if ((info
->shared
|| elf32_tic6x_using_dsbt (output_bfd
))
2261 && (input_section
->flags
& SEC_ALLOC
)
2263 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2264 || h
->root
.type
!= bfd_link_hash_undefweak
))
2266 Elf_Internal_Rela outrel
;
2267 bfd_boolean skip
, relocate
;
2270 unresolved_reloc
= FALSE
;
2272 sreloc
= elf_section_data (input_section
)->sreloc
;
2273 BFD_ASSERT (sreloc
!= NULL
&& sreloc
->contents
!= NULL
);
2279 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
2281 if (outrel
.r_offset
== (bfd_vma
) -1)
2283 else if (outrel
.r_offset
== (bfd_vma
) -2)
2284 skip
= TRUE
, relocate
= TRUE
;
2285 outrel
.r_offset
+= (input_section
->output_section
->vma
2286 + input_section
->output_offset
);
2289 memset (&outrel
, 0, sizeof outrel
);
2294 || !h
->def_regular
))
2296 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
2297 outrel
.r_addend
= rel
->r_addend
;
2303 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2305 if (bfd_is_abs_section (sec
))
2307 else if (sec
== NULL
|| sec
->owner
== NULL
)
2309 bfd_set_error (bfd_error_bad_value
);
2316 osec
= sec
->output_section
;
2317 indx
= elf_section_data (osec
)->dynindx
;
2318 outrel
.r_addend
-= osec
->vma
;
2319 BFD_ASSERT (indx
!= 0);
2322 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
2325 elf32_tic6x_install_rela (output_bfd
, sreloc
, &outrel
);
2327 /* If this reloc is against an external symbol, we do not want to
2328 fiddle with the addend. Otherwise, we need to include the symbol
2329 value so that it becomes an addend for the dynamic reloc. */
2334 /* Generic logic OK. */
2337 case R_C6000_SBR_U15_B
:
2338 case R_C6000_SBR_U15_H
:
2339 case R_C6000_SBR_U15_W
:
2340 case R_C6000_SBR_S16
:
2341 case R_C6000_SBR_L16_B
:
2342 case R_C6000_SBR_L16_H
:
2343 case R_C6000_SBR_L16_W
:
2344 case R_C6000_SBR_H16_B
:
2345 case R_C6000_SBR_H16_H
:
2346 case R_C6000_SBR_H16_W
:
2347 sbh
= bfd_link_hash_lookup (info
->hash
, "__c6xabi_DSBT_BASE",
2348 FALSE
, FALSE
, TRUE
);
2350 && (sbh
->type
== bfd_link_hash_defined
2351 || sbh
->type
== bfd_link_hash_defweak
))
2353 if (h
? (h
->root
.type
== bfd_link_hash_undefweak
2354 && (htab
->elf
.splt
== NULL
2355 || h
->plt
.offset
== (bfd_vma
) -1))
2356 : r_symndx
!= STN_UNDEF
&& bfd_is_und_section (sec
))
2359 relocation
-= (sbh
->u
.def
.value
2360 + sbh
->u
.def
.section
->output_section
->vma
2361 + sbh
->u
.def
.section
->output_offset
);
2365 (*_bfd_error_handler
) (_("%B: SB-relative relocation but "
2366 "__c6xabi_DSBT_BASE not defined"),
2373 case R_C6000_SBR_GOT_U15_W
:
2374 case R_C6000_SBR_GOT_L16_W
:
2375 case R_C6000_SBR_GOT_H16_W
:
2376 case R_C6000_EHTYPE
:
2377 /* Relocation is to the entry for this symbol in the global
2379 if (htab
->elf
.sgot
== NULL
)
2386 off
= h
->got
.offset
;
2387 dyn
= htab
->elf
.dynamic_sections_created
;
2388 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
)
2390 && SYMBOL_REFERENCES_LOCAL (info
, h
))
2391 || (ELF_ST_VISIBILITY (h
->other
)
2392 && h
->root
.type
== bfd_link_hash_undefweak
))
2394 /* This is actually a static link, or it is a
2395 -Bsymbolic link and the symbol is defined
2396 locally, or the symbol was forced to be local
2397 because of a version file. We must initialize
2398 this entry in the global offset table. Since the
2399 offset must always be a multiple of 4, we use the
2400 least significant bit to record whether we have
2401 initialized it already.
2403 When doing a dynamic link, we create a .rel.got
2404 relocation entry to initialize the value. This
2405 is done in the finish_dynamic_symbol routine. */
2410 bfd_put_32 (output_bfd
, relocation
,
2411 htab
->elf
.sgot
->contents
+ off
);
2414 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
,
2416 && !(ELF_ST_VISIBILITY (h
->other
)
2417 && h
->root
.type
== bfd_link_hash_undefweak
))
2418 elf32_tic6x_make_got_dynreloc (output_bfd
, htab
, sec
,
2423 unresolved_reloc
= FALSE
;
2427 if (local_got_offsets
== NULL
)
2430 off
= local_got_offsets
[r_symndx
];
2432 /* The offset must always be a multiple of 4. We use
2433 the least significant bit to record whether we have
2434 already generated the necessary reloc. */
2439 bfd_put_32 (output_bfd
, relocation
,
2440 htab
->elf
.sgot
->contents
+ off
);
2442 if (info
->shared
|| elf32_tic6x_using_dsbt (output_bfd
))
2443 elf32_tic6x_make_got_dynreloc (output_bfd
, htab
, sec
, off
);
2445 local_got_offsets
[r_symndx
] |= 1;
2449 if (off
>= (bfd_vma
) -2)
2453 relocation
= (htab
->elf
.sgot
->output_section
->vma
2454 + htab
->elf
.sgot
->output_offset
+ off
2455 - htab
->dsbt
->output_section
->vma
2456 - htab
->dsbt
->output_offset
);
2458 relocation
= (htab
->elf
.sgot
->output_section
->vma
2459 + htab
->elf
.sgot
->output_offset
+ off
2460 - htab
->elf
.sgotplt
->output_section
->vma
2461 - htab
->elf
.sgotplt
->output_offset
);
2463 if (rel
->r_addend
!= 0)
2465 /* We can't do anything for a relocation which is against
2466 a symbol *plus offset*. GOT holds relocations for
2467 symbols. Make this an error; the compiler isn't
2468 allowed to pass us these kinds of things. */
2470 (*_bfd_error_handler
)
2471 (_("%B, section %A: relocation %s with non-zero addend %d"
2472 " against local symbol"),
2475 elf32_tic6x_howto_table
[r_type
].name
,
2478 (*_bfd_error_handler
)
2479 (_("%B, section %A: relocation %s with non-zero addend %d"
2480 " against symbol `%s'"),
2483 elf32_tic6x_howto_table
[r_type
].name
,
2485 h
->root
.root
.string
[0] != '\0' ? h
->root
.root
.string
2486 : _("[whose name is lost]"));
2488 bfd_set_error (bfd_error_bad_value
);
2493 case R_C6000_PREL31
:
2495 && h
->plt
.offset
!= (bfd_vma
) -1
2496 && htab
->elf
.splt
!= NULL
)
2498 relocation
= (htab
->elf
.splt
->output_section
->vma
2499 + htab
->elf
.splt
->output_offset
2505 /* Invalid in relocatable object. */
2507 /* Unknown relocation. */
2508 (*_bfd_error_handler
) (_("%B: invalid relocation type %d"),
2514 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
2515 contents
, rel
->r_offset
,
2516 relocation
, rel
->r_addend
);
2519 if (r
== bfd_reloc_ok
2520 && howto
->complain_on_overflow
== complain_overflow_bitfield
)
2522 /* Generic overflow handling accepts cases the ABI says
2523 should be rejected for R_C6000_ABS16 and
2525 bfd_vma value
= (relocation
+ rel
->r_addend
) & 0xffffffff;
2526 bfd_vma sbit
= 1 << (howto
->bitsize
- 1);
2527 bfd_vma sbits
= (-(bfd_vma
) sbit
) & 0xffffffff;
2528 bfd_vma value_sbits
= value
& sbits
;
2530 if (value_sbits
!= 0
2531 && value_sbits
!= sbit
2532 && value_sbits
!= sbits
)
2533 r
= bfd_reloc_overflow
;
2536 if (r
!= bfd_reloc_ok
)
2539 const char *error_message
;
2542 name
= h
->root
.root
.string
;
2545 name
= bfd_elf_string_from_elf_section (input_bfd
,
2546 symtab_hdr
->sh_link
,
2551 name
= bfd_section_name (input_bfd
, sec
);
2556 case bfd_reloc_overflow
:
2557 /* If the overflowing reloc was to an undefined symbol,
2558 we have already printed one error message and there
2559 is no point complaining again. */
2561 h
->root
.type
!= bfd_link_hash_undefined
)
2562 && (!((*info
->callbacks
->reloc_overflow
)
2563 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
2564 (bfd_vma
) 0, input_bfd
, input_section
,
2569 case bfd_reloc_undefined
:
2570 if (!((*info
->callbacks
->undefined_symbol
)
2571 (info
, name
, input_bfd
, input_section
,
2572 rel
->r_offset
, TRUE
)))
2576 case bfd_reloc_outofrange
:
2577 error_message
= _("out of range");
2580 case bfd_reloc_notsupported
:
2581 error_message
= _("unsupported relocation");
2584 case bfd_reloc_dangerous
:
2585 error_message
= _("dangerous relocation");
2589 error_message
= _("unknown error");
2593 BFD_ASSERT (error_message
!= NULL
);
2594 if (!((*info
->callbacks
->reloc_dangerous
)
2595 (info
, error_message
, input_bfd
, input_section
,
2607 /* Look through the relocs for a section during the first phase, and
2608 calculate needed space in the global offset table, procedure linkage
2609 table, and dynamic reloc sections. */
2612 elf32_tic6x_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
2613 asection
*sec
, const Elf_Internal_Rela
*relocs
)
2615 struct elf32_tic6x_link_hash_table
*htab
;
2616 Elf_Internal_Shdr
*symtab_hdr
;
2617 struct elf_link_hash_entry
**sym_hashes
;
2618 const Elf_Internal_Rela
*rel
;
2619 const Elf_Internal_Rela
*rel_end
;
2622 if (info
->relocatable
)
2625 htab
= elf32_tic6x_hash_table (info
);
2626 symtab_hdr
= &elf_symtab_hdr (abfd
);
2627 sym_hashes
= elf_sym_hashes (abfd
);
2629 /* Create dynamic sections for relocatable executables so that we can
2630 copy relocations. */
2631 if (elf32_tic6x_using_dsbt (abfd
)
2632 && ! htab
->elf
.dynamic_sections_created
)
2634 if (! _bfd_elf_link_create_dynamic_sections (abfd
, info
))
2640 rel_end
= relocs
+ sec
->reloc_count
;
2641 for (rel
= relocs
; rel
< rel_end
; rel
++)
2643 unsigned int r_type
;
2644 unsigned long r_symndx
;
2645 struct elf_link_hash_entry
*h
;
2646 Elf_Internal_Sym
*isym
;
2648 r_symndx
= ELF32_R_SYM (rel
->r_info
);
2649 r_type
= ELF32_R_TYPE (rel
->r_info
);
2651 if (r_symndx
>= NUM_SHDR_ENTRIES (symtab_hdr
))
2653 (*_bfd_error_handler
) (_("%B: bad symbol index: %d"),
2659 if (r_symndx
< symtab_hdr
->sh_info
)
2661 /* A local symbol. */
2662 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
2671 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
2672 while (h
->root
.type
== bfd_link_hash_indirect
2673 || h
->root
.type
== bfd_link_hash_warning
)
2674 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2679 case R_C6000_PCR_S21
:
2680 case R_C6000_PREL31
:
2681 /* This symbol requires a procedure linkage table entry. We
2682 actually build the entry in adjust_dynamic_symbol,
2683 because this might be a case of linking PIC code which is
2684 never referenced by a dynamic object, in which case we
2685 don't need to generate a procedure linkage table entry
2688 /* If this is a local symbol, we resolve it directly without
2689 creating a procedure linkage table entry. */
2694 h
->plt
.refcount
+= 1;
2697 case R_C6000_SBR_GOT_U15_W
:
2698 case R_C6000_SBR_GOT_L16_W
:
2699 case R_C6000_SBR_GOT_H16_W
:
2700 case R_C6000_EHTYPE
:
2701 /* This symbol requires a global offset table entry. */
2704 h
->got
.refcount
+= 1;
2708 bfd_signed_vma
*local_got_refcounts
;
2710 /* This is a global offset table entry for a local symbol. */
2711 local_got_refcounts
= elf_local_got_refcounts (abfd
);
2712 if (local_got_refcounts
== NULL
)
2716 size
= symtab_hdr
->sh_info
;
2717 size
*= (sizeof (bfd_signed_vma
)
2718 + sizeof (bfd_vma
) + sizeof(char));
2719 local_got_refcounts
= bfd_zalloc (abfd
, size
);
2720 if (local_got_refcounts
== NULL
)
2722 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
2724 local_got_refcounts
[r_symndx
] += 1;
2727 if (htab
->elf
.sgot
== NULL
)
2729 if (htab
->elf
.dynobj
== NULL
)
2730 htab
->elf
.dynobj
= abfd
;
2731 if (!_bfd_elf_create_got_section (htab
->elf
.dynobj
, info
))
2736 case R_C6000_DSBT_INDEX
:
2737 /* We'd like to check for nonzero dsbt_index here, but it's
2738 set up only after check_relocs is called. Instead, we
2739 store the number of R_C6000_DSBT_INDEX relocs in the
2740 pc_count field, and potentially discard the extra space
2741 in elf32_tic6x_allocate_dynrelocs. */
2749 case R_C6000_ABS_S16
:
2750 case R_C6000_ABS_L16
:
2751 case R_C6000_ABS_H16
:
2752 /* If we are creating a shared library, and this is a reloc
2753 against a global symbol, or a non PC relative reloc
2754 against a local symbol, then we need to copy the reloc
2755 into the shared library. However, if we are linking with
2756 -Bsymbolic, we do not need to copy a reloc against a
2757 global symbol which is defined in an object we are
2758 including in the link (i.e., DEF_REGULAR is set). At
2759 this point we have not seen all the input files, so it is
2760 possible that DEF_REGULAR is not set now but will be set
2761 later (it is never cleared). In case of a weak definition,
2762 DEF_REGULAR may be cleared later by a strong definition in
2763 a shared library. We account for that possibility below by
2764 storing information in the relocs_copied field of the hash
2765 table entry. A similar situation occurs when creating
2766 shared libraries and symbol visibility changes render the
2769 If on the other hand, we are creating an executable, we
2770 may need to keep relocations for symbols satisfied by a
2771 dynamic library if we manage to avoid copy relocs for the
2773 if ((info
->shared
|| elf32_tic6x_using_dsbt (abfd
))
2774 && (sec
->flags
& SEC_ALLOC
) != 0)
2776 struct elf_dyn_relocs
*p
;
2777 struct elf_dyn_relocs
**head
;
2779 /* We must copy these reloc types into the output file.
2780 Create a reloc section in dynobj and make room for
2784 if (htab
->elf
.dynobj
== NULL
)
2785 htab
->elf
.dynobj
= abfd
;
2787 sreloc
= _bfd_elf_make_dynamic_reloc_section
2788 (sec
, htab
->elf
.dynobj
, 2, abfd
, /*rela? */ TRUE
);
2794 /* If this is a global symbol, we count the number of
2795 relocations we need for this symbol. */
2798 head
= &((struct elf32_tic6x_link_hash_entry
*) h
)->dyn_relocs
;
2802 /* Track dynamic relocs needed for local syms too.
2803 We really need local syms available to do this
2808 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
2812 vpp
= &elf_section_data (s
)->local_dynrel
;
2813 head
= (struct elf_dyn_relocs
**)vpp
;
2817 if (p
== NULL
|| p
->sec
!= sec
)
2819 bfd_size_type amt
= sizeof *p
;
2820 p
= bfd_alloc (htab
->elf
.dynobj
, amt
);
2831 if (r_type
== R_C6000_DSBT_INDEX
)
2836 case R_C6000_SBR_U15_B
:
2837 case R_C6000_SBR_U15_H
:
2838 case R_C6000_SBR_U15_W
:
2839 case R_C6000_SBR_S16
:
2840 case R_C6000_SBR_L16_B
:
2841 case R_C6000_SBR_L16_H
:
2842 case R_C6000_SBR_L16_W
:
2843 case R_C6000_SBR_H16_B
:
2844 case R_C6000_SBR_H16_H
:
2845 case R_C6000_SBR_H16_W
:
2846 if (h
!= NULL
&& info
->executable
)
2848 /* For B14-relative addresses, we might need a copy
2863 elf32_tic6x_add_symbol_hook (bfd
*abfd
,
2864 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2865 Elf_Internal_Sym
*sym
,
2866 const char **namep ATTRIBUTE_UNUSED
,
2867 flagword
*flagsp ATTRIBUTE_UNUSED
,
2871 switch (sym
->st_shndx
)
2873 case SHN_TIC6X_SCOMMON
:
2874 *secp
= bfd_make_section_old_way (abfd
, ".scommon");
2875 (*secp
)->flags
|= SEC_IS_COMMON
;
2876 *valp
= sym
->st_size
;
2877 bfd_set_section_alignment (abfd
, *secp
, bfd_log2 (sym
->st_value
));
2885 elf32_tic6x_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
, asymbol
*asym
)
2887 elf_symbol_type
*elfsym
;
2889 elfsym
= (elf_symbol_type
*) asym
;
2890 switch (elfsym
->internal_elf_sym
.st_shndx
)
2892 case SHN_TIC6X_SCOMMON
:
2893 if (tic6x_elf_scom_section
.name
== NULL
)
2895 /* Initialize the small common section. */
2896 tic6x_elf_scom_section
.name
= ".scommon";
2897 tic6x_elf_scom_section
.flags
= SEC_IS_COMMON
;
2898 tic6x_elf_scom_section
.output_section
= &tic6x_elf_scom_section
;
2899 tic6x_elf_scom_section
.symbol
= &tic6x_elf_scom_symbol
;
2900 tic6x_elf_scom_section
.symbol_ptr_ptr
= &tic6x_elf_scom_symbol_ptr
;
2901 tic6x_elf_scom_symbol
.name
= ".scommon";
2902 tic6x_elf_scom_symbol
.flags
= BSF_SECTION_SYM
;
2903 tic6x_elf_scom_symbol
.section
= &tic6x_elf_scom_section
;
2904 tic6x_elf_scom_symbol_ptr
= &tic6x_elf_scom_symbol
;
2906 asym
->section
= &tic6x_elf_scom_section
;
2907 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
2913 elf32_tic6x_link_output_symbol_hook (struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2914 const char *name ATTRIBUTE_UNUSED
,
2915 Elf_Internal_Sym
*sym
,
2916 asection
*input_sec
,
2917 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
2919 /* If we see a common symbol, which implies a relocatable link, then
2920 if a symbol was small common in an input file, mark it as small
2921 common in the output file. */
2922 if (sym
->st_shndx
== SHN_COMMON
&& strcmp (input_sec
->name
, ".scommon") == 0)
2923 sym
->st_shndx
= SHN_TIC6X_SCOMMON
;
2929 elf32_tic6x_section_from_bfd_section (bfd
*abfd ATTRIBUTE_UNUSED
,
2933 if (strcmp (bfd_get_section_name (abfd
, sec
), ".scommon") == 0)
2935 *retval
= SHN_TIC6X_SCOMMON
;
2942 /* Allocate space in .plt, .got and associated reloc sections for
2946 elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
2948 struct bfd_link_info
*info
;
2949 struct elf32_tic6x_link_hash_table
*htab
;
2950 struct elf32_tic6x_link_hash_entry
*eh
;
2951 struct elf_dyn_relocs
*p
;
2953 if (h
->root
.type
== bfd_link_hash_indirect
)
2956 if (h
->root
.type
== bfd_link_hash_warning
)
2957 /* When warning symbols are created, they **replace** the "real"
2958 entry in the hash table, thus we never get to see the real
2959 symbol in a hash traversal. So look at it now. */
2960 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2961 eh
= (struct elf32_tic6x_link_hash_entry
*) h
;
2963 info
= (struct bfd_link_info
*) inf
;
2964 htab
= elf32_tic6x_hash_table (info
);
2966 if (htab
->elf
.dynamic_sections_created
&& h
->plt
.refcount
> 0)
2968 /* Make sure this symbol is output as a dynamic symbol.
2969 Undefined weak syms won't yet be marked as dynamic. */
2970 if (h
->dynindx
== -1 && !h
->forced_local
)
2972 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2977 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h
))
2979 asection
*s
= htab
->elf
.splt
;
2981 /* If this is the first .plt entry, make room for the special
2984 s
->size
+= PLT_ENTRY_SIZE
;
2986 h
->plt
.offset
= s
->size
;
2988 /* If this symbol is not defined in a regular file, and we are
2989 not generating a shared library, then set the symbol to this
2990 location in the .plt. This is required to make function
2991 pointers compare as equal between the normal executable and
2992 the shared library. */
2993 if (! info
->shared
&& !h
->def_regular
)
2995 h
->root
.u
.def
.section
= s
;
2996 h
->root
.u
.def
.value
= h
->plt
.offset
;
2999 /* Make room for this entry. */
3000 s
->size
+= PLT_ENTRY_SIZE
;
3001 /* We also need to make an entry in the .got.plt section, which
3002 will be placed in the .got section by the linker script. */
3003 htab
->elf
.sgotplt
->size
+= 4;
3004 /* We also need to make an entry in the .rel.plt section. */
3005 htab
->elf
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
3009 h
->plt
.offset
= (bfd_vma
) -1;
3015 h
->plt
.offset
= (bfd_vma
) -1;
3019 if (h
->got
.refcount
> 0)
3023 /* Make sure this symbol is output as a dynamic symbol.
3024 Undefined weak syms won't yet be marked as dynamic. */
3025 if (h
->dynindx
== -1
3026 && !h
->forced_local
)
3028 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
3033 h
->got
.offset
= s
->size
;
3036 if (!(ELF_ST_VISIBILITY (h
->other
)
3037 && h
->root
.type
== bfd_link_hash_undefweak
))
3038 htab
->elf
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
3041 h
->got
.offset
= (bfd_vma
) -1;
3043 if (eh
->dyn_relocs
== NULL
)
3046 /* Discard relocs on undefined weak syms with non-default
3048 if (info
->shared
|| elf32_tic6x_using_dsbt (htab
->obfd
))
3050 /* We use the pc_count field to hold the number of
3051 R_C6000_DSBT_INDEX relocs. */
3052 if (htab
->params
.dsbt_index
!= 0)
3054 struct elf_dyn_relocs
**pp
;
3056 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
3058 p
->count
-= p
->pc_count
;
3067 if (eh
->dyn_relocs
!= NULL
3068 && h
->root
.type
== bfd_link_hash_undefweak
)
3070 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
3071 eh
->dyn_relocs
= NULL
;
3073 /* Make sure undefined weak symbols are output as a dynamic
3075 else if (h
->dynindx
== -1
3076 && !h
->forced_local
)
3078 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
3084 /* Finally, allocate space. */
3085 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3089 sreloc
= elf_section_data (p
->sec
)->sreloc
;
3091 BFD_ASSERT (sreloc
!= NULL
);
3092 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
3098 /* Find any dynamic relocs that apply to read-only sections. */
3101 elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
3103 struct elf32_tic6x_link_hash_entry
*eh
;
3104 struct elf_dyn_relocs
*p
;
3106 if (h
->root
.type
== bfd_link_hash_warning
)
3107 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3109 eh
= (struct elf32_tic6x_link_hash_entry
*) h
;
3110 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3112 asection
*s
= p
->sec
->output_section
;
3114 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
3116 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
3118 info
->flags
|= DF_TEXTREL
;
3120 /* Not an error, just cut short the traversal. */
3127 /* Set the sizes of the dynamic sections. */
3130 elf32_tic6x_size_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
3132 struct elf32_tic6x_link_hash_table
*htab
;
3138 htab
= elf32_tic6x_hash_table (info
);
3139 dynobj
= htab
->elf
.dynobj
;
3143 if (htab
->elf
.dynamic_sections_created
)
3145 /* Set the contents of the .interp section to the interpreter. */
3146 if (info
->executable
)
3148 s
= bfd_get_section_by_name (dynobj
, ".interp");
3151 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
3152 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
3156 /* Set up .got offsets for local syms, and space for local dynamic
3158 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
3160 bfd_signed_vma
*local_got
;
3161 bfd_signed_vma
*end_local_got
;
3162 char *local_tls_type
;
3163 bfd_vma
*local_tlsdesc_gotent
;
3164 bfd_size_type locsymcount
;
3165 Elf_Internal_Shdr
*symtab_hdr
;
3168 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
3170 struct elf_dyn_relocs
*p
;
3172 for (p
= ((struct elf_dyn_relocs
*)
3173 elf_section_data (s
)->local_dynrel
);
3177 if (!bfd_is_abs_section (p
->sec
)
3178 && bfd_is_abs_section (p
->sec
->output_section
))
3180 /* Input section has been discarded, either because
3181 it is a copy of a linkonce section or due to
3182 linker script /DISCARD/, so we'll be discarding
3185 else if (p
->count
!= 0)
3187 srel
= elf_section_data (p
->sec
)->sreloc
;
3188 srel
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
3189 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
3190 info
->flags
|= DF_TEXTREL
;
3195 local_got
= elf_local_got_refcounts (ibfd
);
3199 symtab_hdr
= &elf_symtab_hdr (ibfd
);
3200 locsymcount
= symtab_hdr
->sh_info
;
3201 end_local_got
= local_got
+ locsymcount
;
3203 srel
= htab
->elf
.srelgot
;
3204 for (; local_got
< end_local_got
;
3205 ++local_got
, ++local_tls_type
, ++local_tlsdesc_gotent
)
3209 *local_got
= s
->size
;
3212 if (info
->shared
|| elf32_tic6x_using_dsbt (output_bfd
))
3214 srel
->size
+= sizeof (Elf32_External_Rela
);
3218 *local_got
= (bfd_vma
) -1;
3222 /* Allocate global sym .plt and .got entries, and space for global
3223 sym dynamic relocs. */
3224 elf_link_hash_traverse (&htab
->elf
, elf32_tic6x_allocate_dynrelocs
, info
);
3226 /* We now have determined the sizes of the various dynamic sections.
3227 Allocate memory for them. */
3229 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
3231 bfd_boolean strip_section
= TRUE
;
3233 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
3236 if (s
== htab
->dsbt
)
3237 s
->size
= 4 * htab
->params
.dsbt_size
;
3238 else if (s
== htab
->elf
.splt
3239 || s
== htab
->elf
.sgot
3240 || s
== htab
->elf
.sgotplt
3241 || s
== htab
->sdynbss
)
3243 /* Strip this section if we don't need it; see the
3245 /* We'd like to strip these sections if they aren't needed, but if
3246 we've exported dynamic symbols from them we must leave them.
3247 It's too late to tell BFD to get rid of the symbols. */
3249 if (htab
->elf
.hplt
!= NULL
)
3250 strip_section
= FALSE
;
3252 /* Round up the size of the PLT section to a multiple of 32. */
3253 if (s
== htab
->elf
.splt
&& s
->size
> 0)
3254 s
->size
= (s
->size
+ 31) & ~(bfd_vma
)31;
3256 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, s
), ".rela"))
3259 && s
!= htab
->elf
.srelplt
)
3262 /* We use the reloc_count field as a counter if we need
3263 to copy relocs into the output file. */
3268 /* It's not one of our sections, so don't allocate space. */
3274 /* If we don't need this section, strip it from the
3275 output file. This is mostly to handle .rel.bss and
3276 .rel.plt. We must create both sections in
3277 create_dynamic_sections, because they must be created
3278 before the linker maps input sections to output
3279 sections. The linker does that before
3280 adjust_dynamic_symbol is called, and it is that
3281 function which decides whether anything needs to go
3282 into these sections. */
3284 s
->flags
|= SEC_EXCLUDE
;
3288 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
3291 /* Allocate memory for the section contents. We use bfd_zalloc
3292 here in case unused entries are not reclaimed before the
3293 section's contents are written out. This should not happen,
3294 but this way if it does, we get a R_C6000_NONE reloc instead
3296 s
->contents
= bfd_zalloc (dynobj
, s
->size
);
3297 if (s
->contents
== NULL
)
3301 if (htab
->elf
.dynamic_sections_created
)
3303 /* Add some entries to the .dynamic section. We fill in the
3304 values later, in elf32_tic6x_finish_dynamic_sections, but we
3305 must add the entries now so that we get the correct size for
3306 the .dynamic section. The DT_DEBUG entry is filled in by the
3307 dynamic linker and used by the debugger. */
3308 #define add_dynamic_entry(TAG, VAL) \
3309 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3311 if (info
->executable
)
3313 if (!add_dynamic_entry (DT_DEBUG
, 0))
3317 if (!add_dynamic_entry (DT_C6000_DSBT_BASE
, 0)
3318 || !add_dynamic_entry (DT_C6000_DSBT_SIZE
, htab
->params
.dsbt_size
)
3319 || !add_dynamic_entry (DT_C6000_DSBT_INDEX
,
3320 htab
->params
.dsbt_index
))
3323 if (htab
->elf
.splt
->size
!= 0)
3325 if (!add_dynamic_entry (DT_PLTGOT
, 0)
3326 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
3327 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3328 || !add_dynamic_entry (DT_JMPREL
, 0))
3334 if (!add_dynamic_entry (DT_RELA
, 0)
3335 || !add_dynamic_entry (DT_RELASZ
, 0)
3336 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
3339 /* If any dynamic relocs apply to a read-only section,
3340 then we need a DT_TEXTREL entry. */
3341 if ((info
->flags
& DF_TEXTREL
) == 0)
3342 elf_link_hash_traverse (&htab
->elf
,
3343 elf32_tic6x_readonly_dynrelocs
, info
);
3345 if ((info
->flags
& DF_TEXTREL
) != 0)
3347 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3352 #undef add_dynamic_entry
3357 /* This function is called after all the input files have been read,
3358 and the input sections have been assigned to output sections. */
3361 elf32_tic6x_always_size_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
3363 if (elf32_tic6x_using_dsbt (output_bfd
) && !info
->relocatable
)
3365 struct elf_link_hash_entry
*h
;
3367 /* Force a PT_GNU_STACK segment to be created. */
3368 if (! elf_tdata (output_bfd
)->stack_flags
)
3369 elf_tdata (output_bfd
)->stack_flags
= PF_R
| PF_W
| PF_X
;
3371 /* Define __stacksize if it's not defined yet. */
3372 h
= elf_link_hash_lookup (elf_hash_table (info
), "__stacksize",
3373 FALSE
, FALSE
, FALSE
);
3374 if (! h
|| h
->root
.type
!= bfd_link_hash_defined
3375 || h
->type
!= STT_OBJECT
3378 struct bfd_link_hash_entry
*bh
= NULL
;
3380 if (!(_bfd_generic_link_add_one_symbol
3381 (info
, output_bfd
, "__stacksize",
3382 BSF_GLOBAL
, bfd_abs_section_ptr
, DEFAULT_STACK_SIZE
,
3383 (const char *) NULL
, FALSE
,
3384 get_elf_backend_data (output_bfd
)->collect
, &bh
)))
3387 h
= (struct elf_link_hash_entry
*) bh
;
3389 h
->type
= STT_OBJECT
;
3396 elf32_tic6x_modify_program_headers (bfd
*output_bfd
,
3397 struct bfd_link_info
*info
)
3399 struct elf_obj_tdata
*tdata
= elf_tdata (output_bfd
);
3400 struct elf_segment_map
*m
;
3401 Elf_Internal_Phdr
*p
;
3403 /* objcopy and strip preserve what's already there using
3404 elf32_tic6x_copy_private_bfd_data (). */
3408 for (p
= tdata
->phdr
, m
= tdata
->segment_map
; m
!= NULL
; m
= m
->next
, p
++)
3409 if (m
->p_type
== PT_GNU_STACK
)
3414 struct elf_link_hash_entry
*h
;
3416 /* Obtain the pointer to the __stacksize symbol. */
3417 h
= elf_link_hash_lookup (elf_hash_table (info
), "__stacksize",
3418 FALSE
, FALSE
, FALSE
);
3421 while (h
->root
.type
== bfd_link_hash_indirect
3422 || h
->root
.type
== bfd_link_hash_warning
)
3423 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3424 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
);
3427 /* Set the header p_memsz from the symbol value. We
3428 intentionally ignore the symbol section. */
3429 if (h
&& h
->root
.type
== bfd_link_hash_defined
)
3430 p
->p_memsz
= h
->root
.u
.def
.value
;
3432 p
->p_memsz
= DEFAULT_STACK_SIZE
;
3441 elf32_tic6x_finish_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
3442 struct bfd_link_info
*info
)
3444 struct elf32_tic6x_link_hash_table
*htab
;
3448 htab
= elf32_tic6x_hash_table (info
);
3449 dynobj
= htab
->elf
.dynobj
;
3450 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
3452 if (elf_hash_table (info
)->dynamic_sections_created
)
3454 Elf32_External_Dyn
* dyncon
;
3455 Elf32_External_Dyn
* dynconend
;
3457 BFD_ASSERT (sdyn
!= NULL
);
3459 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
3460 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
3462 for (; dyncon
< dynconend
; dyncon
++)
3464 Elf_Internal_Dyn dyn
;
3467 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
3474 case DT_C6000_DSBT_BASE
:
3476 dyn
.d_un
.d_ptr
= (s
->output_section
->vma
+ s
->output_offset
);
3480 s
= htab
->elf
.sgotplt
;
3481 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
3485 s
= htab
->elf
.srelplt
;
3486 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
3490 s
= htab
->elf
.srelplt
;
3491 dyn
.d_un
.d_val
= s
->size
;
3494 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3497 /* Fill in the first entry in the procedure linkage table. */
3498 if (htab
->elf
.splt
&& htab
->elf
.splt
->size
> 0)
3500 bfd_vma got_offs
= (htab
->elf
.sgotplt
->output_section
->vma
3501 + htab
->elf
.sgotplt
->output_offset
3502 - htab
->dsbt
->output_section
->vma
3503 - htab
->dsbt
->output_offset
) / 4;
3505 /* ldw .D2T2 *+b14[$GOT(0)],b2 */
3506 bfd_put_32 (output_bfd
, got_offs
<< 8 | 0x0100006e,
3507 htab
->elf
.splt
->contents
);
3508 /* ldw .D2T2 *+b14[$GOT(4)],b1 */
3509 bfd_put_32 (output_bfd
, (got_offs
+ 1) << 8 | 0x0080006e,
3510 htab
->elf
.splt
->contents
+ 4);
3512 bfd_put_32 (output_bfd
, 0x00004000,
3513 htab
->elf
.splt
->contents
+ 8);
3515 bfd_put_32 (output_bfd
, 0x00080362,
3516 htab
->elf
.splt
->contents
+ 12);
3518 bfd_put_32 (output_bfd
, 0x00008000,
3519 htab
->elf
.splt
->contents
+ 16);
3521 elf_section_data (htab
->elf
.splt
->output_section
)
3522 ->this_hdr
.sh_entsize
= PLT_ENTRY_SIZE
;
3529 /* Return address for Ith PLT stub in section PLT, for relocation REL
3530 or (bfd_vma) -1 if it should not be included. */
3533 elf32_tic6x_plt_sym_val (bfd_vma i
, const asection
*plt
,
3534 const arelent
*rel ATTRIBUTE_UNUSED
)
3536 return plt
->vma
+ (i
+ 1) * PLT_ENTRY_SIZE
;
3540 elf32_tic6x_obj_attrs_arg_type (int tag
)
3542 if (tag
== Tag_ABI_compatibility
)
3543 return ATTR_TYPE_FLAG_INT_VAL
| ATTR_TYPE_FLAG_STR_VAL
;
3545 return ATTR_TYPE_FLAG_STR_VAL
;
3547 return ATTR_TYPE_FLAG_INT_VAL
;
3551 elf32_tic6x_obj_attrs_order (int num
)
3553 if (num
== LEAST_KNOWN_OBJ_ATTRIBUTE
)
3554 return Tag_ABI_conformance
;
3555 if ((num
- 1) < Tag_ABI_conformance
)
3561 elf32_tic6x_obj_attrs_handle_unknown (bfd
*abfd
, int tag
)
3563 if ((tag
& 127) < 64)
3566 (_("%B: error: unknown mandatory EABI object attribute %d"),
3568 bfd_set_error (bfd_error_bad_value
);
3574 (_("%B: warning: unknown EABI object attribute %d"),
3580 /* Merge the Tag_ISA attribute values ARCH1 and ARCH2
3581 and return the merged value. At present, all merges succeed, so no
3582 return value for errors is defined. */
3585 elf32_tic6x_merge_arch_attributes (int arch1
, int arch2
)
3587 int min_arch
, max_arch
;
3589 min_arch
= (arch1
< arch2
? arch1
: arch2
);
3590 max_arch
= (arch1
> arch2
? arch1
: arch2
);
3592 /* In most cases, the numerically greatest value is the correct
3593 merged value, but merging C64 and C67 results in C674X. */
3594 if ((min_arch
== C6XABI_Tag_ISA_C67X
3595 || min_arch
== C6XABI_Tag_ISA_C67XP
)
3596 && (max_arch
== C6XABI_Tag_ISA_C64X
3597 || max_arch
== C6XABI_Tag_ISA_C64XP
))
3598 return C6XABI_Tag_ISA_C674X
;
3603 /* Convert a Tag_ABI_array_object_alignment or
3604 Tag_ABI_array_object_align_expected tag value TAG to a
3605 corresponding alignment value; return the alignment, or -1 for an
3606 unknown tag value. */
3609 elf32_tic6x_tag_to_array_alignment (int tag
)
3627 /* Convert a Tag_ABI_array_object_alignment or
3628 Tag_ABI_array_object_align_expected alignment ALIGN to a
3629 corresponding tag value; return the tag value. */
3632 elf32_tic6x_array_alignment_to_tag (int align
)
3650 /* Merge attributes from IBFD and OBFD, returning TRUE if the merge
3651 succeeded, FALSE otherwise. */
3654 elf32_tic6x_merge_attributes (bfd
*ibfd
, bfd
*obfd
)
3656 bfd_boolean result
= TRUE
;
3657 obj_attribute
*in_attr
;
3658 obj_attribute
*out_attr
;
3660 int array_align_in
, array_align_out
, array_expect_in
, array_expect_out
;
3662 if (!elf_known_obj_attributes_proc (obfd
)[0].i
)
3664 /* This is the first object. Copy the attributes. */
3665 _bfd_elf_copy_obj_attributes (ibfd
, obfd
);
3667 out_attr
= elf_known_obj_attributes_proc (obfd
);
3669 /* Use the Tag_null value to indicate the attributes have been
3676 in_attr
= elf_known_obj_attributes_proc (ibfd
);
3677 out_attr
= elf_known_obj_attributes_proc (obfd
);
3679 /* No specification yet for handling of unknown attributes, so just
3680 ignore them and handle known ones. */
3682 if (out_attr
[Tag_ABI_stack_align_preserved
].i
3683 < in_attr
[Tag_ABI_stack_align_needed
].i
)
3686 (_("error: %B requires more stack alignment than %B preserves"),
3690 if (in_attr
[Tag_ABI_stack_align_preserved
].i
3691 < out_attr
[Tag_ABI_stack_align_needed
].i
)
3694 (_("error: %B requires more stack alignment than %B preserves"),
3699 array_align_in
= elf32_tic6x_tag_to_array_alignment
3700 (in_attr
[Tag_ABI_array_object_alignment
].i
);
3701 if (array_align_in
== -1)
3704 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3708 array_align_out
= elf32_tic6x_tag_to_array_alignment
3709 (out_attr
[Tag_ABI_array_object_alignment
].i
);
3710 if (array_align_out
== -1)
3713 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3717 array_expect_in
= elf32_tic6x_tag_to_array_alignment
3718 (in_attr
[Tag_ABI_array_object_align_expected
].i
);
3719 if (array_expect_in
== -1)
3722 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3726 array_expect_out
= elf32_tic6x_tag_to_array_alignment
3727 (out_attr
[Tag_ABI_array_object_align_expected
].i
);
3728 if (array_expect_out
== -1)
3731 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3736 if (array_align_out
< array_expect_in
)
3739 (_("error: %B requires more array alignment than %B preserves"),
3743 if (array_align_in
< array_expect_out
)
3746 (_("error: %B requires more array alignment than %B preserves"),
3751 for (i
= LEAST_KNOWN_OBJ_ATTRIBUTE
; i
< NUM_KNOWN_OBJ_ATTRIBUTES
; i
++)
3756 out_attr
[i
].i
= elf32_tic6x_merge_arch_attributes (in_attr
[i
].i
,
3760 case Tag_ABI_wchar_t
:
3761 if (out_attr
[i
].i
== 0)
3762 out_attr
[i
].i
= in_attr
[i
].i
;
3763 if (out_attr
[i
].i
!= 0
3764 && in_attr
[i
].i
!= 0
3765 && out_attr
[i
].i
!= in_attr
[i
].i
)
3768 (_("warning: %B and %B differ in wchar_t size"), obfd
, ibfd
);
3772 case Tag_ABI_stack_align_needed
:
3773 if (out_attr
[i
].i
< in_attr
[i
].i
)
3774 out_attr
[i
].i
= in_attr
[i
].i
;
3777 case Tag_ABI_stack_align_preserved
:
3778 if (out_attr
[i
].i
> in_attr
[i
].i
)
3779 out_attr
[i
].i
= in_attr
[i
].i
;
3783 if (out_attr
[i
].i
!= in_attr
[i
].i
)
3786 (_("warning: %B and %B differ in whether code is "
3787 "compiled for DSBT"),
3794 if (out_attr
[i
].i
> in_attr
[i
].i
)
3795 out_attr
[i
].i
= in_attr
[i
].i
;
3798 case Tag_ABI_array_object_alignment
:
3799 if (array_align_out
!= -1
3800 && array_align_in
!= -1
3801 && array_align_out
> array_align_in
)
3803 = elf32_tic6x_array_alignment_to_tag (array_align_in
);
3806 case Tag_ABI_array_object_align_expected
:
3807 if (array_expect_out
!= -1
3808 && array_expect_in
!= -1
3809 && array_expect_out
< array_expect_in
)
3811 = elf32_tic6x_array_alignment_to_tag (array_expect_in
);
3814 case Tag_ABI_conformance
:
3815 /* Merging for this attribute is not specified. As on ARM,
3816 treat a missing attribute as no claim to conform and only
3817 merge identical values. */
3818 if (out_attr
[i
].s
== NULL
3819 || in_attr
[i
].s
== NULL
3820 || strcmp (out_attr
[i
].s
,
3822 out_attr
[i
].s
= NULL
;
3825 case Tag_ABI_compatibility
:
3826 /* Merged in _bfd_elf_merge_object_attributes. */
3831 = result
&& _bfd_elf_merge_unknown_attribute_low (ibfd
, obfd
, i
);
3835 if (in_attr
[i
].type
&& !out_attr
[i
].type
)
3836 out_attr
[i
].type
= in_attr
[i
].type
;
3839 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
3840 if (!_bfd_elf_merge_object_attributes (ibfd
, obfd
))
3843 result
&= _bfd_elf_merge_unknown_attribute_list (ibfd
, obfd
);
3849 elf32_tic6x_merge_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
3851 if (!_bfd_generic_verify_endian_match (ibfd
, obfd
))
3854 if (!elf32_tic6x_merge_attributes (ibfd
, obfd
))
3861 elf32_tic6x_copy_private_data (bfd
* ibfd
, bfd
* obfd
)
3863 _bfd_elf_copy_private_bfd_data (ibfd
, obfd
);
3865 if (! is_tic6x_elf (ibfd
) || ! is_tic6x_elf (obfd
))
3868 /* Copy the stack size. */
3869 if (elf_tdata (ibfd
)->phdr
&& elf_tdata (obfd
)->phdr
3870 && elf32_tic6x_using_dsbt (ibfd
) && elf32_tic6x_using_dsbt (obfd
))
3874 for (i
= 0; i
< elf_elfheader (ibfd
)->e_phnum
; i
++)
3875 if (elf_tdata (ibfd
)->phdr
[i
].p_type
== PT_GNU_STACK
)
3877 Elf_Internal_Phdr
*iphdr
= &elf_tdata (ibfd
)->phdr
[i
];
3879 for (i
= 0; i
< elf_elfheader (obfd
)->e_phnum
; i
++)
3880 if (elf_tdata (obfd
)->phdr
[i
].p_type
== PT_GNU_STACK
)
3882 memcpy (&elf_tdata (obfd
)->phdr
[i
], iphdr
, sizeof (*iphdr
));
3884 /* Rewrite the phdrs, since we're only called after they
3885 were first written. */
3887 (bfd_signed_vma
) get_elf_backend_data (obfd
)
3888 ->s
->sizeof_ehdr
, SEEK_SET
) != 0
3889 || get_elf_backend_data (obfd
)->s
3890 ->write_out_phdrs (obfd
, elf_tdata (obfd
)->phdr
,
3891 elf_elfheader (obfd
)->e_phnum
) != 0)
3903 #define TARGET_LITTLE_SYM bfd_elf32_tic6x_le_vec
3904 #define TARGET_LITTLE_NAME "elf32-tic6x-le"
3905 #define TARGET_BIG_SYM bfd_elf32_tic6x_be_vec
3906 #define TARGET_BIG_NAME "elf32-tic6x-be"
3907 #define ELF_ARCH bfd_arch_tic6x
3908 #define ELF_TARGET_ID TIC6X_ELF_DATA
3909 #define ELF_MACHINE_CODE EM_TI_C6000
3910 #define ELF_MAXPAGESIZE 0x1000
3911 #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
3912 #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
3913 #define bfd_elf32_bfd_copy_private_bfd_data elf32_tic6x_copy_private_data
3914 #define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
3915 #define bfd_elf32_mkobject elf32_tic6x_mkobject
3916 #define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
3917 #define bfd_elf32_bfd_link_hash_table_free elf32_tic6x_link_hash_table_free
3918 #define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
3919 #define elf_backend_can_gc_sections 1
3920 #define elf_backend_default_use_rela_p 1
3921 #define elf_backend_may_use_rel_p 1
3922 #define elf_backend_may_use_rela_p 1
3923 #define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
3924 #define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
3925 #define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
3926 #define elf_backend_obj_attrs_section ".c6xabi.attributes"
3927 #define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
3928 #define elf_backend_obj_attrs_vendor "c6xabi"
3929 #define elf_backend_can_refcount 1
3930 #define elf_backend_want_got_plt 1
3931 #define elf_backend_want_dynbss 1
3932 #define elf_backend_plt_readonly 1
3933 #define elf_backend_rela_normal 1
3934 #define elf_backend_got_header_size 8
3935 #define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook
3936 #define elf_backend_modify_program_headers \
3937 elf32_tic6x_modify_program_headers
3938 #define elf_backend_create_dynamic_sections \
3939 elf32_tic6x_create_dynamic_sections
3940 #define elf_backend_adjust_dynamic_symbol \
3941 elf32_tic6x_adjust_dynamic_symbol
3942 #define elf_backend_check_relocs elf32_tic6x_check_relocs
3943 #define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
3944 #define elf_backend_symbol_processing elf32_tic6x_symbol_processing
3945 #define elf_backend_link_output_symbol_hook \
3946 elf32_tic6x_link_output_symbol_hook
3947 #define elf_backend_section_from_bfd_section \
3948 elf32_tic6x_section_from_bfd_section
3949 #define elf_backend_relocate_section elf32_tic6x_relocate_section
3950 #define elf_backend_finish_dynamic_symbol \
3951 elf32_tic6x_finish_dynamic_symbol
3952 #define elf_backend_always_size_sections \
3953 elf32_tic6x_always_size_sections
3954 #define elf_backend_size_dynamic_sections \
3955 elf32_tic6x_size_dynamic_sections
3956 #define elf_backend_finish_dynamic_sections \
3957 elf32_tic6x_finish_dynamic_sections
3958 #define bfd_elf32_bfd_final_link \
3959 elf32_tic6x_final_link
3960 #define elf_info_to_howto elf32_tic6x_info_to_howto
3961 #define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
3963 #undef elf_backend_omit_section_dynsym
3964 #define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
3965 #define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
3968 #include "elf32-target.h"