1 /* 32-bit ELF support for TI C6X
2 Copyright (C) 2010-2016 Free Software Foundation, Inc.
3 Contributed by Joseph Myers <joseph@codesourcery.com>
4 Bernd Schmidt <bernds@codesourcery.com>
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 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;
81 INSERT_EXIDX_CANTUNWIND_AT_END
83 tic6x_unwind_edit_type;
85 /* A (sorted) list of edits to apply to an unwind table. */
86 typedef struct tic6x_unwind_table_edit
88 tic6x_unwind_edit_type type;
89 /* Note: we sometimes want to insert an unwind entry corresponding to a
90 section different from the one we're currently writing out, so record the
91 (text) section this edit relates to here. */
92 asection *linked_section;
94 struct tic6x_unwind_table_edit *next;
96 tic6x_unwind_table_edit;
98 typedef struct _tic6x_elf_section_data
100 /* Information about mapping symbols. */
101 struct bfd_elf_section_data elf;
102 /* Information about unwind tables. */
105 /* Unwind info attached to a text section. */
108 asection *tic6x_exidx_sec;
111 /* Unwind info attached to an .c6xabi.exidx section. */
114 tic6x_unwind_table_edit *unwind_edit_list;
115 tic6x_unwind_table_edit *unwind_edit_tail;
119 _tic6x_elf_section_data;
121 #define elf32_tic6x_section_data(sec) \
122 ((_tic6x_elf_section_data *) elf_section_data (sec))
124 struct elf32_tic6x_obj_tdata
126 struct elf_obj_tdata root;
128 /* Whether to use RELA relocations when generating relocations.
129 This is a per-object flag to allow the assembler to generate REL
130 relocations for use in linker testcases. */
131 bfd_boolean use_rela_p;
134 #define elf32_tic6x_tdata(abfd) \
135 ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any)
137 #define is_tic6x_elf(bfd) \
138 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
139 && elf_tdata (bfd) != NULL \
140 && elf_object_id (bfd) == TIC6X_ELF_DATA)
142 /* C6X ELF uses two common sections. One is the usual one, and the
143 other is for small objects. All the small objects are kept
144 together, and then referenced via the gp pointer, which yields
145 faster assembler code. This is what we use for the small common
146 section. This approach is copied from ecoff.c. */
147 static asection tic6x_elf_scom_section;
148 static asymbol tic6x_elf_scom_symbol;
149 static asymbol *tic6x_elf_scom_symbol_ptr;
151 static reloc_howto_type elf32_tic6x_howto_table[] =
153 HOWTO (R_C6000_NONE, /* type */
155 3, /* size (0 = byte, 1 = short, 2 = long) */
157 FALSE, /* pc_relative */
159 complain_overflow_dont,/* complain_on_overflow */
160 bfd_elf_generic_reloc, /* special_function */
161 "R_C6000_NONE", /* name */
162 FALSE, /* partial_inplace */
165 FALSE), /* pcrel_offset */
166 HOWTO (R_C6000_ABS32, /* type */
168 2, /* size (0 = byte, 1 = short, 2 = long) */
170 FALSE, /* pc_relative */
172 complain_overflow_dont,/* complain_on_overflow */
173 bfd_elf_generic_reloc, /* special_function */
174 "R_C6000_ABS32", /* name */
175 FALSE, /* partial_inplace */
177 0xffffffff, /* dst_mask */
178 FALSE), /* pcrel_offset */
179 HOWTO (R_C6000_ABS16, /* type */
181 1, /* size (0 = byte, 1 = short, 2 = long) */
183 FALSE, /* pc_relative */
185 complain_overflow_bitfield,/* complain_on_overflow */
186 bfd_elf_generic_reloc, /* special_function */
187 "R_C6000_ABS16", /* name */
188 FALSE, /* partial_inplace */
190 0x0000ffff, /* dst_mask */
191 FALSE), /* pcrel_offset */
192 HOWTO (R_C6000_ABS8, /* type */
194 0, /* size (0 = byte, 1 = short, 2 = long) */
196 FALSE, /* pc_relative */
198 complain_overflow_bitfield,/* complain_on_overflow */
199 bfd_elf_generic_reloc, /* special_function */
200 "R_C6000_ABS8", /* name */
201 FALSE, /* partial_inplace */
203 0x000000ff, /* dst_mask */
204 FALSE), /* pcrel_offset */
205 HOWTO (R_C6000_PCR_S21, /* type */
207 2, /* size (0 = byte, 1 = short, 2 = long) */
209 TRUE, /* pc_relative */
211 complain_overflow_signed,/* complain_on_overflow */
212 bfd_elf_generic_reloc, /* special_function */
213 "R_C6000_PCR_S21", /* name */
214 FALSE, /* partial_inplace */
216 0x0fffff80, /* dst_mask */
217 TRUE), /* pcrel_offset */
218 HOWTO (R_C6000_PCR_S12, /* type */
220 2, /* size (0 = byte, 1 = short, 2 = long) */
222 TRUE, /* pc_relative */
224 complain_overflow_signed,/* complain_on_overflow */
225 bfd_elf_generic_reloc, /* special_function */
226 "R_C6000_PCR_S12", /* name */
227 FALSE, /* partial_inplace */
229 0x0fff0000, /* dst_mask */
230 TRUE), /* pcrel_offset */
231 HOWTO (R_C6000_PCR_S10, /* type */
233 2, /* size (0 = byte, 1 = short, 2 = long) */
235 TRUE, /* pc_relative */
237 complain_overflow_signed,/* complain_on_overflow */
238 bfd_elf_generic_reloc, /* special_function */
239 "R_C6000_PCR_S10", /* name */
240 FALSE, /* partial_inplace */
242 0x007fe000, /* dst_mask */
243 TRUE), /* pcrel_offset */
244 HOWTO (R_C6000_PCR_S7, /* type */
246 2, /* size (0 = byte, 1 = short, 2 = long) */
248 TRUE, /* pc_relative */
250 complain_overflow_signed,/* complain_on_overflow */
251 bfd_elf_generic_reloc, /* special_function */
252 "R_C6000_PCR_S7", /* name */
253 FALSE, /* partial_inplace */
255 0x007f0000, /* dst_mask */
256 TRUE), /* pcrel_offset */
257 HOWTO (R_C6000_ABS_S16, /* type */
259 2, /* size (0 = byte, 1 = short, 2 = long) */
261 FALSE, /* pc_relative */
263 complain_overflow_signed,/* complain_on_overflow */
264 bfd_elf_generic_reloc, /* special_function */
265 "R_C6000_ABS_S16", /* name */
266 FALSE, /* partial_inplace */
268 0x007fff80, /* dst_mask */
269 FALSE), /* pcrel_offset */
270 HOWTO (R_C6000_ABS_L16, /* type */
272 2, /* size (0 = byte, 1 = short, 2 = long) */
274 FALSE, /* pc_relative */
276 complain_overflow_dont,/* complain_on_overflow */
277 bfd_elf_generic_reloc, /* special_function */
278 "R_C6000_ABS_L16", /* name */
279 FALSE, /* partial_inplace */
281 0x007fff80, /* dst_mask */
282 FALSE), /* pcrel_offset */
283 HOWTO (R_C6000_ABS_H16, /* type */
285 2, /* size (0 = byte, 1 = short, 2 = long) */
287 FALSE, /* pc_relative */
289 complain_overflow_dont,/* complain_on_overflow */
290 bfd_elf_generic_reloc, /* special_function */
291 "R_C6000_ABS_H16", /* name */
292 FALSE, /* partial_inplace */
294 0x007fff80, /* dst_mask */
295 FALSE), /* pcrel_offset */
296 HOWTO (R_C6000_SBR_U15_B, /* type */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
300 FALSE, /* pc_relative */
302 complain_overflow_unsigned,/* complain_on_overflow */
303 bfd_elf_generic_reloc, /* special_function */
304 "R_C6000_SBR_U15_B", /* name */
305 FALSE, /* partial_inplace */
307 0x007fff00, /* dst_mask */
308 FALSE), /* pcrel_offset */
309 HOWTO (R_C6000_SBR_U15_H, /* type */
311 2, /* size (0 = byte, 1 = short, 2 = long) */
313 FALSE, /* pc_relative */
315 complain_overflow_unsigned,/* complain_on_overflow */
316 bfd_elf_generic_reloc, /* special_function */
317 "R_C6000_SBR_U15_H", /* name */
318 FALSE, /* partial_inplace */
320 0x007fff00, /* dst_mask */
321 FALSE), /* pcrel_offset */
322 HOWTO (R_C6000_SBR_U15_W, /* type */
324 2, /* size (0 = byte, 1 = short, 2 = long) */
326 FALSE, /* pc_relative */
328 complain_overflow_unsigned,/* complain_on_overflow */
329 bfd_elf_generic_reloc, /* special_function */
330 "R_C6000_SBR_U15_W", /* name */
331 FALSE, /* partial_inplace */
333 0x007fff00, /* dst_mask */
334 FALSE), /* pcrel_offset */
335 HOWTO (R_C6000_SBR_S16, /* type */
337 2, /* size (0 = byte, 1 = short, 2 = long) */
339 FALSE, /* pc_relative */
341 complain_overflow_signed,/* complain_on_overflow */
342 bfd_elf_generic_reloc, /* special_function */
343 "R_C6000_SBR_S16", /* name */
344 FALSE, /* partial_inplace */
346 0x007fff80, /* dst_mask */
347 FALSE), /* pcrel_offset */
348 HOWTO (R_C6000_SBR_L16_B, /* type */
350 2, /* size (0 = byte, 1 = short, 2 = long) */
352 FALSE, /* pc_relative */
354 complain_overflow_dont,/* complain_on_overflow */
355 bfd_elf_generic_reloc, /* special_function */
356 "R_C6000_SBR_L16_B", /* name */
357 FALSE, /* partial_inplace */
359 0x007fff80, /* dst_mask */
360 FALSE), /* pcrel_offset */
361 HOWTO (R_C6000_SBR_L16_H, /* type */
363 2, /* size (0 = byte, 1 = short, 2 = long) */
365 FALSE, /* pc_relative */
367 complain_overflow_dont,/* complain_on_overflow */
368 bfd_elf_generic_reloc, /* special_function */
369 "R_C6000_SBR_L16_H", /* name */
370 FALSE, /* partial_inplace */
372 0x007fff80, /* dst_mask */
373 FALSE), /* pcrel_offset */
374 HOWTO (R_C6000_SBR_L16_W, /* type */
376 2, /* size (0 = byte, 1 = short, 2 = long) */
378 FALSE, /* pc_relative */
380 complain_overflow_dont,/* complain_on_overflow */
381 bfd_elf_generic_reloc, /* special_function */
382 "R_C6000_SBR_L16_W", /* name */
383 FALSE, /* partial_inplace */
385 0x007fff80, /* dst_mask */
386 FALSE), /* pcrel_offset */
387 HOWTO (R_C6000_SBR_H16_B, /* type */
389 2, /* size (0 = byte, 1 = short, 2 = long) */
391 FALSE, /* pc_relative */
393 complain_overflow_dont,/* complain_on_overflow */
394 bfd_elf_generic_reloc, /* special_function */
395 "R_C6000_SBR_H16_B", /* name */
396 FALSE, /* partial_inplace */
398 0x007fff80, /* dst_mask */
399 FALSE), /* pcrel_offset */
400 HOWTO (R_C6000_SBR_H16_H, /* type */
402 2, /* size (0 = byte, 1 = short, 2 = long) */
404 FALSE, /* pc_relative */
406 complain_overflow_dont,/* complain_on_overflow */
407 bfd_elf_generic_reloc, /* special_function */
408 "R_C6000_SBR_H16_H", /* name */
409 FALSE, /* partial_inplace */
411 0x007fff80, /* dst_mask */
412 FALSE), /* pcrel_offset */
413 HOWTO (R_C6000_SBR_H16_W, /* type */
415 2, /* size (0 = byte, 1 = short, 2 = long) */
417 FALSE, /* pc_relative */
419 complain_overflow_dont,/* complain_on_overflow */
420 bfd_elf_generic_reloc, /* special_function */
421 "R_C6000_SBR_H16_W", /* name */
422 FALSE, /* partial_inplace */
424 0x007fff80, /* dst_mask */
425 FALSE), /* pcrel_offset */
426 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
428 2, /* size (0 = byte, 1 = short, 2 = long) */
430 FALSE, /* pc_relative */
432 complain_overflow_unsigned,/* complain_on_overflow */
433 bfd_elf_generic_reloc, /* special_function */
434 "R_C6000_SBR_GOT_U15_W",/* name */
435 FALSE, /* partial_inplace */
437 0x007fff00, /* dst_mask */
438 FALSE), /* pcrel_offset */
439 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
441 2, /* size (0 = byte, 1 = short, 2 = long) */
443 FALSE, /* pc_relative */
445 complain_overflow_dont,/* complain_on_overflow */
446 bfd_elf_generic_reloc, /* special_function */
447 "R_C6000_SBR_GOT_L16_W",/* name */
448 FALSE, /* partial_inplace */
450 0x007fff80, /* dst_mask */
451 FALSE), /* pcrel_offset */
452 HOWTO (R_C6000_SBR_GOT_H16_W, /* type */
454 2, /* size (0 = byte, 1 = short, 2 = long) */
456 FALSE, /* pc_relative */
458 complain_overflow_dont,/* complain_on_overflow */
459 bfd_elf_generic_reloc, /* special_function */
460 "R_C6000_SBR_GOT_H16_W",/* name */
461 FALSE, /* partial_inplace */
463 0x007fff80, /* dst_mask */
464 FALSE), /* pcrel_offset */
465 HOWTO (R_C6000_DSBT_INDEX, /* type */
467 2, /* size (0 = byte, 1 = short, 2 = long) */
469 FALSE, /* pc_relative */
471 complain_overflow_unsigned,/* complain_on_overflow */
472 bfd_elf_generic_reloc, /* special_function */
473 "R_C6000_DSBT_INDEX", /* name */
474 FALSE, /* partial_inplace */
476 0x007fff00, /* dst_mask */
477 FALSE), /* pcrel_offset */
478 HOWTO (R_C6000_PREL31, /* type */
480 2, /* size (0 = byte, 1 = short, 2 = long) */
482 TRUE, /* pc_relative */
484 complain_overflow_dont,/* complain_on_overflow */
485 bfd_elf_generic_reloc, /* special_function */
486 "R_C6000_PREL31", /* name */
487 FALSE, /* partial_inplace */
489 0x7fffffff, /* dst_mask */
490 TRUE), /* pcrel_offset */
491 HOWTO (R_C6000_COPY, /* type */
493 2, /* size (0 = byte, 1 = short, 2 = long) */
495 FALSE, /* pc_relative */
497 complain_overflow_dont,/* complain_on_overflow */
498 bfd_elf_generic_reloc, /* special_function */
499 "R_C6000_COPY", /* name */
500 FALSE, /* partial_inplace */
502 0xffffffff, /* dst_mask */
503 FALSE), /* pcrel_offset */
504 HOWTO (R_C6000_JUMP_SLOT, /* type */
506 2, /* size (0 = byte, 1 = short, 2 = long) */
508 FALSE, /* pc_relative */
510 complain_overflow_dont,/* complain_on_overflow */
511 bfd_elf_generic_reloc, /* special_function */
512 "R_C6000_JUMP_SLOT", /* name */
513 FALSE, /* partial_inplace */
515 0xffffffff, /* dst_mask */
516 FALSE), /* pcrel_offset */
517 HOWTO (R_C6000_EHTYPE, /* type */
519 2, /* size (0 = byte, 1 = short, 2 = long) */
521 FALSE, /* pc_relative */
523 complain_overflow_dont,/* complain_on_overflow */
524 bfd_elf_generic_reloc, /* special_function */
525 "R_C6000_EHTYPE", /* name */
526 FALSE, /* partial_inplace */
528 0xffffffff, /* dst_mask */
529 FALSE), /* pcrel_offset */
530 HOWTO (R_C6000_PCR_H16, /* type */
532 2, /* size (0 = byte, 1 = short, 2 = long) */
534 TRUE, /* pc_relative */
536 complain_overflow_dont,/* complain_on_overflow */
537 bfd_elf_generic_reloc, /* special_function */
538 "R_C6000_PCR_H16", /* name */
539 FALSE, /* partial_inplace */
541 0x007fff80, /* dst_mask */
542 TRUE), /* pcrel_offset */
543 HOWTO (R_C6000_PCR_L16, /* type */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
547 TRUE, /* pc_relative */
549 complain_overflow_dont,/* complain_on_overflow */
550 bfd_elf_generic_reloc, /* special_function */
551 "R_C6000_PCR_L16", /* name */
552 FALSE, /* partial_inplace */
554 0x007fff80, /* dst_mask */
555 TRUE), /* pcrel_offset */
778 HOWTO (R_C6000_ALIGN, /* type */
780 0, /* size (0 = byte, 1 = short, 2 = long) */
782 FALSE, /* pc_relative */
784 complain_overflow_dont,/* complain_on_overflow */
785 bfd_elf_generic_reloc, /* special_function */
786 "R_C6000_ALIGN", /* name */
787 FALSE, /* partial_inplace */
790 FALSE), /* pcrel_offset */
791 HOWTO (R_C6000_FPHEAD, /* type */
793 0, /* size (0 = byte, 1 = short, 2 = long) */
795 FALSE, /* pc_relative */
797 complain_overflow_dont,/* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_C6000_FPHEAD", /* name */
800 FALSE, /* partial_inplace */
803 FALSE), /* pcrel_offset */
804 HOWTO (R_C6000_NOCMP, /* type */
806 0, /* size (0 = byte, 1 = short, 2 = long) */
808 FALSE, /* pc_relative */
810 complain_overflow_dont,/* complain_on_overflow */
811 bfd_elf_generic_reloc, /* special_function */
812 "R_C6000_NOCMP", /* name */
813 FALSE, /* partial_inplace */
816 FALSE) /* pcrel_offset */
819 static reloc_howto_type elf32_tic6x_howto_table_rel[] =
821 HOWTO (R_C6000_NONE, /* type */
823 3, /* size (0 = byte, 1 = short, 2 = long) */
825 FALSE, /* pc_relative */
827 complain_overflow_dont,/* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
829 "R_C6000_NONE", /* name */
830 TRUE, /* partial_inplace */
833 FALSE), /* pcrel_offset */
834 HOWTO (R_C6000_ABS32, /* type */
836 2, /* size (0 = byte, 1 = short, 2 = long) */
838 FALSE, /* pc_relative */
840 complain_overflow_dont,/* complain_on_overflow */
841 bfd_elf_generic_reloc, /* special_function */
842 "R_C6000_ABS32", /* name */
843 TRUE, /* partial_inplace */
844 0xffffffff, /* src_mask */
845 0xffffffff, /* dst_mask */
846 FALSE), /* pcrel_offset */
847 HOWTO (R_C6000_ABS16, /* type */
849 1, /* size (0 = byte, 1 = short, 2 = long) */
851 FALSE, /* pc_relative */
853 complain_overflow_bitfield,/* complain_on_overflow */
854 bfd_elf_generic_reloc, /* special_function */
855 "R_C6000_ABS16", /* name */
856 TRUE, /* partial_inplace */
857 0x0000ffff, /* src_mask */
858 0x0000ffff, /* dst_mask */
859 FALSE), /* pcrel_offset */
860 HOWTO (R_C6000_ABS8, /* type */
862 0, /* size (0 = byte, 1 = short, 2 = long) */
864 FALSE, /* pc_relative */
866 complain_overflow_bitfield,/* complain_on_overflow */
867 bfd_elf_generic_reloc, /* special_function */
868 "R_C6000_ABS8", /* name */
869 TRUE, /* partial_inplace */
870 0x000000ff, /* src_mask */
871 0x000000ff, /* dst_mask */
872 FALSE), /* pcrel_offset */
873 HOWTO (R_C6000_PCR_S21, /* type */
875 2, /* size (0 = byte, 1 = short, 2 = long) */
877 TRUE, /* pc_relative */
879 complain_overflow_signed,/* complain_on_overflow */
880 bfd_elf_generic_reloc, /* special_function */
881 "R_C6000_PCR_S21", /* name */
882 TRUE, /* partial_inplace */
883 0x0fffff80, /* src_mask */
884 0x0fffff80, /* dst_mask */
885 TRUE), /* pcrel_offset */
886 HOWTO (R_C6000_PCR_S12, /* type */
888 2, /* size (0 = byte, 1 = short, 2 = long) */
890 TRUE, /* pc_relative */
892 complain_overflow_signed,/* complain_on_overflow */
893 bfd_elf_generic_reloc, /* special_function */
894 "R_C6000_PCR_S12", /* name */
895 TRUE, /* partial_inplace */
896 0x0fff0000, /* src_mask */
897 0x0fff0000, /* dst_mask */
898 TRUE), /* pcrel_offset */
899 HOWTO (R_C6000_PCR_S10, /* type */
901 2, /* size (0 = byte, 1 = short, 2 = long) */
903 TRUE, /* pc_relative */
905 complain_overflow_signed,/* complain_on_overflow */
906 bfd_elf_generic_reloc, /* special_function */
907 "R_C6000_PCR_S10", /* name */
908 TRUE, /* partial_inplace */
909 0x007fe000, /* src_mask */
910 0x007fe000, /* dst_mask */
911 TRUE), /* pcrel_offset */
912 HOWTO (R_C6000_PCR_S7, /* type */
914 2, /* size (0 = byte, 1 = short, 2 = long) */
916 TRUE, /* pc_relative */
918 complain_overflow_signed,/* complain_on_overflow */
919 bfd_elf_generic_reloc, /* special_function */
920 "R_C6000_PCR_S7", /* name */
921 TRUE, /* partial_inplace */
922 0x007f0000, /* src_mask */
923 0x007f0000, /* dst_mask */
924 TRUE), /* pcrel_offset */
925 HOWTO (R_C6000_ABS_S16, /* type */
927 2, /* size (0 = byte, 1 = short, 2 = long) */
929 FALSE, /* pc_relative */
931 complain_overflow_signed,/* complain_on_overflow */
932 bfd_elf_generic_reloc, /* special_function */
933 "R_C6000_ABS_S16", /* name */
934 TRUE, /* partial_inplace */
935 0x007fff80, /* src_mask */
936 0x007fff80, /* dst_mask */
937 FALSE), /* pcrel_offset */
938 HOWTO (R_C6000_ABS_L16, /* type */
940 2, /* size (0 = byte, 1 = short, 2 = long) */
942 FALSE, /* pc_relative */
944 complain_overflow_dont,/* complain_on_overflow */
945 bfd_elf_generic_reloc, /* special_function */
946 "R_C6000_ABS_L16", /* name */
947 TRUE, /* partial_inplace */
948 0x007fff80, /* src_mask */
949 0x007fff80, /* dst_mask */
950 FALSE), /* pcrel_offset */
951 EMPTY_HOWTO (R_C6000_ABS_H16),
952 HOWTO (R_C6000_SBR_U15_B, /* type */
954 2, /* size (0 = byte, 1 = short, 2 = long) */
956 FALSE, /* pc_relative */
958 complain_overflow_unsigned,/* complain_on_overflow */
959 bfd_elf_generic_reloc, /* special_function */
960 "R_C6000_SBR_U15_B", /* name */
961 TRUE, /* partial_inplace */
962 0x007fff00, /* src_mask */
963 0x007fff00, /* dst_mask */
964 FALSE), /* pcrel_offset */
965 HOWTO (R_C6000_SBR_U15_H, /* type */
967 2, /* size (0 = byte, 1 = short, 2 = long) */
969 FALSE, /* pc_relative */
971 complain_overflow_unsigned,/* complain_on_overflow */
972 bfd_elf_generic_reloc, /* special_function */
973 "R_C6000_SBR_U15_H", /* name */
974 TRUE, /* partial_inplace */
975 0x007fff00, /* src_mask */
976 0x007fff00, /* dst_mask */
977 FALSE), /* pcrel_offset */
978 HOWTO (R_C6000_SBR_U15_W, /* type */
980 2, /* size (0 = byte, 1 = short, 2 = long) */
982 FALSE, /* pc_relative */
984 complain_overflow_unsigned,/* complain_on_overflow */
985 bfd_elf_generic_reloc, /* special_function */
986 "R_C6000_SBR_U15_W", /* name */
987 TRUE, /* partial_inplace */
988 0x007fff00, /* src_mask */
989 0x007fff00, /* dst_mask */
990 FALSE), /* pcrel_offset */
991 HOWTO (R_C6000_SBR_S16, /* type */
993 2, /* size (0 = byte, 1 = short, 2 = long) */
995 FALSE, /* pc_relative */
997 complain_overflow_signed,/* complain_on_overflow */
998 bfd_elf_generic_reloc, /* special_function */
999 "R_C6000_SBR_S16", /* name */
1000 TRUE, /* partial_inplace */
1001 0x007fff80, /* src_mask */
1002 0x007fff80, /* dst_mask */
1003 FALSE), /* pcrel_offset */
1004 HOWTO (R_C6000_SBR_L16_B, /* type */
1006 2, /* size (0 = byte, 1 = short, 2 = long) */
1008 FALSE, /* pc_relative */
1010 complain_overflow_dont,/* complain_on_overflow */
1011 bfd_elf_generic_reloc, /* special_function */
1012 "R_C6000_SBR_L16_B", /* name */
1013 TRUE, /* partial_inplace */
1014 0x007fff80, /* src_mask */
1015 0x007fff80, /* dst_mask */
1016 FALSE), /* pcrel_offset */
1017 HOWTO (R_C6000_SBR_L16_H, /* type */
1019 2, /* size (0 = byte, 1 = short, 2 = long) */
1021 FALSE, /* pc_relative */
1023 complain_overflow_dont,/* complain_on_overflow */
1024 bfd_elf_generic_reloc, /* special_function */
1025 "R_C6000_SBR_L16_H", /* name */
1026 TRUE, /* partial_inplace */
1027 0x007fff80, /* src_mask */
1028 0x007fff80, /* dst_mask */
1029 FALSE), /* pcrel_offset */
1030 HOWTO (R_C6000_SBR_L16_W, /* type */
1032 2, /* size (0 = byte, 1 = short, 2 = long) */
1034 FALSE, /* pc_relative */
1036 complain_overflow_dont,/* complain_on_overflow */
1037 bfd_elf_generic_reloc, /* special_function */
1038 "R_C6000_SBR_L16_W", /* name */
1039 TRUE, /* partial_inplace */
1040 0x007fff80, /* src_mask */
1041 0x007fff80, /* dst_mask */
1042 FALSE), /* pcrel_offset */
1043 EMPTY_HOWTO (R_C6000_SBR_H16_B),
1044 EMPTY_HOWTO (R_C6000_SBR_H16_H),
1045 EMPTY_HOWTO (R_C6000_SBR_H16_W),
1046 HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
1048 2, /* size (0 = byte, 1 = short, 2 = long) */
1050 FALSE, /* pc_relative */
1052 complain_overflow_unsigned,/* complain_on_overflow */
1053 bfd_elf_generic_reloc, /* special_function */
1054 "R_C6000_SBR_GOT_U15_W",/* name */
1055 TRUE, /* partial_inplace */
1056 0x007fff00, /* src_mask */
1057 0x007fff00, /* dst_mask */
1058 FALSE), /* pcrel_offset */
1059 HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
1061 2, /* size (0 = byte, 1 = short, 2 = long) */
1063 FALSE, /* pc_relative */
1065 complain_overflow_dont,/* complain_on_overflow */
1066 bfd_elf_generic_reloc, /* special_function */
1067 "R_C6000_SBR_GOT_L16_W",/* name */
1068 TRUE, /* partial_inplace */
1069 0x007fff80, /* src_mask */
1070 0x007fff80, /* dst_mask */
1071 FALSE), /* pcrel_offset */
1072 EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W),
1073 HOWTO (R_C6000_DSBT_INDEX, /* type */
1075 2, /* size (0 = byte, 1 = short, 2 = long) */
1077 FALSE, /* pc_relative */
1079 complain_overflow_unsigned,/* complain_on_overflow */
1080 bfd_elf_generic_reloc, /* special_function */
1081 "R_C6000_DSBT_INDEX", /* name */
1082 TRUE, /* partial_inplace */
1084 0x007fff00, /* dst_mask */
1085 FALSE), /* pcrel_offset */
1086 HOWTO (R_C6000_PREL31, /* type */
1088 2, /* size (0 = byte, 1 = short, 2 = long) */
1090 TRUE, /* pc_relative */
1092 complain_overflow_dont,/* complain_on_overflow */
1093 bfd_elf_generic_reloc, /* special_function */
1094 "R_C6000_PREL31", /* name */
1095 TRUE, /* partial_inplace */
1097 0x7fffffff, /* dst_mask */
1098 TRUE), /* pcrel_offset */
1099 HOWTO (R_C6000_COPY, /* type */
1101 2, /* size (0 = byte, 1 = short, 2 = long) */
1103 FALSE, /* pc_relative */
1105 complain_overflow_dont,/* complain_on_overflow */
1106 bfd_elf_generic_reloc, /* special_function */
1107 "R_C6000_COPY", /* name */
1108 TRUE, /* partial_inplace */
1110 0xffffffff, /* dst_mask */
1111 FALSE), /* pcrel_offset */
1112 HOWTO (R_C6000_JUMP_SLOT, /* type */
1114 2, /* size (0 = byte, 1 = short, 2 = long) */
1116 FALSE, /* pc_relative */
1118 complain_overflow_dont,/* complain_on_overflow */
1119 bfd_elf_generic_reloc, /* special_function */
1120 "R_C6000_JUMP_SLOT", /* name */
1121 FALSE, /* partial_inplace */
1123 0xffffffff, /* dst_mask */
1124 FALSE), /* pcrel_offset */
1125 HOWTO (R_C6000_EHTYPE, /* type */
1127 2, /* size (0 = byte, 1 = short, 2 = long) */
1129 FALSE, /* pc_relative */
1131 complain_overflow_dont,/* complain_on_overflow */
1132 bfd_elf_generic_reloc, /* special_function */
1133 "R_C6000_EHTYPE", /* name */
1134 FALSE, /* partial_inplace */
1136 0xffffffff, /* dst_mask */
1137 FALSE), /* pcrel_offset */
1138 EMPTY_HOWTO (R_C6000_PCR_H16),
1139 EMPTY_HOWTO (R_C6000_PCR_L16),
1362 HOWTO (R_C6000_ALIGN, /* type */
1364 0, /* size (0 = byte, 1 = short, 2 = long) */
1366 FALSE, /* pc_relative */
1368 complain_overflow_dont,/* complain_on_overflow */
1369 bfd_elf_generic_reloc, /* special_function */
1370 "R_C6000_ALIGN", /* name */
1371 TRUE, /* partial_inplace */
1374 FALSE), /* pcrel_offset */
1375 HOWTO (R_C6000_FPHEAD, /* type */
1377 0, /* size (0 = byte, 1 = short, 2 = long) */
1379 FALSE, /* pc_relative */
1381 complain_overflow_dont,/* complain_on_overflow */
1382 bfd_elf_generic_reloc, /* special_function */
1383 "R_C6000_FPHEAD", /* name */
1384 TRUE, /* partial_inplace */
1387 FALSE), /* pcrel_offset */
1388 HOWTO (R_C6000_NOCMP, /* type */
1390 0, /* size (0 = byte, 1 = short, 2 = long) */
1392 FALSE, /* pc_relative */
1394 complain_overflow_dont,/* complain_on_overflow */
1395 bfd_elf_generic_reloc, /* special_function */
1396 "R_C6000_NOCMP", /* name */
1397 TRUE, /* partial_inplace */
1400 FALSE) /* pcrel_offset */
1403 /* Map BFD relocations to ELF relocations. */
1407 bfd_reloc_code_real_type bfd_reloc_val;
1408 enum elf_tic6x_reloc_type elf_reloc_val;
1411 static const tic6x_reloc_map elf32_tic6x_reloc_map[] =
1413 { BFD_RELOC_NONE, R_C6000_NONE },
1414 { BFD_RELOC_32, R_C6000_ABS32 },
1415 { BFD_RELOC_16, R_C6000_ABS16 },
1416 { BFD_RELOC_8, R_C6000_ABS8 },
1417 { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 },
1418 { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 },
1419 { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 },
1420 { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 },
1421 { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 },
1422 { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 },
1423 { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 },
1424 { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B },
1425 { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H },
1426 { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W },
1427 { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 },
1428 { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B },
1429 { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H },
1430 { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W },
1431 { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B },
1432 { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H },
1433 { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W },
1434 { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W },
1435 { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W },
1436 { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W },
1437 { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX },
1438 { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 },
1439 { BFD_RELOC_C6000_COPY, R_C6000_COPY },
1440 { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT },
1441 { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE },
1442 { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 },
1443 { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 },
1444 { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN },
1445 { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD },
1446 { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP }
1449 static reloc_howto_type *
1450 elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
1454 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++)
1455 if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code)
1457 enum elf_tic6x_reloc_type elf_reloc_val;
1458 reloc_howto_type *howto;
1460 elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val;
1461 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1462 howto = &elf32_tic6x_howto_table[elf_reloc_val];
1464 howto = &elf32_tic6x_howto_table_rel[elf_reloc_val];
1466 /* Some relocations are RELA-only; do not return them for
1468 if (howto->name == NULL)
1477 static reloc_howto_type *
1478 elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name)
1480 if (elf32_tic6x_tdata (abfd)->use_rela_p)
1484 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++)
1485 if (elf32_tic6x_howto_table[i].name != NULL
1486 && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0)
1487 return &elf32_tic6x_howto_table[i];
1493 for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++)
1494 if (elf32_tic6x_howto_table_rel[i].name != NULL
1495 && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0)
1496 return &elf32_tic6x_howto_table_rel[i];
1503 elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1504 Elf_Internal_Rela *elf_reloc)
1506 unsigned int r_type;
1508 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1509 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table))
1510 bfd_reloc->howto = NULL;
1512 bfd_reloc->howto = &elf32_tic6x_howto_table[r_type];
1516 elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
1517 Elf_Internal_Rela *elf_reloc)
1519 unsigned int r_type;
1521 r_type = ELF32_R_TYPE (elf_reloc->r_info);
1522 if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel))
1523 bfd_reloc->howto = NULL;
1525 bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type];
1529 elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p)
1531 elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p;
1534 /* Create an entry in a C6X ELF linker hash table. */
1536 static struct bfd_hash_entry *
1537 elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry *entry,
1538 struct bfd_hash_table *table,
1541 /* Allocate the structure if it has not already been allocated by a
1545 entry = bfd_hash_allocate (table,
1546 sizeof (struct elf32_tic6x_link_hash_entry));
1551 /* Call the allocation method of the superclass. */
1552 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1555 struct elf32_tic6x_link_hash_entry *eh;
1557 eh = (struct elf32_tic6x_link_hash_entry *) entry;
1558 eh->dyn_relocs = NULL;
1564 /* Create a C6X ELF linker hash table. */
1566 static struct bfd_link_hash_table *
1567 elf32_tic6x_link_hash_table_create (bfd *abfd)
1569 struct elf32_tic6x_link_hash_table *ret;
1570 bfd_size_type amt = sizeof (struct elf32_tic6x_link_hash_table);
1572 ret = bfd_zmalloc (amt);
1576 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1577 elf32_tic6x_link_hash_newfunc,
1578 sizeof (struct elf32_tic6x_link_hash_entry),
1586 ret->elf.is_relocatable_executable = 1;
1588 return &ret->elf.root;
1592 elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info)
1594 if (bfd_link_pic (info))
1596 obj_attribute *out_attr;
1597 out_attr = elf_known_obj_attributes_proc (abfd);
1598 if (out_attr[Tag_ABI_PIC].i == 0)
1600 _bfd_error_handler (_("warning: generating a shared library "
1601 "containing non-PIC code"));
1603 if (out_attr[Tag_ABI_PID].i == 0)
1605 _bfd_error_handler (_("warning: generating a shared library "
1606 "containing non-PID code"));
1609 /* Invoke the regular ELF backend linker to do all the work. */
1610 if (!bfd_elf_final_link (abfd, info))
1616 /* Called to pass PARAMS to the backend. We store them in the hash table
1617 associated with INFO. */
1620 elf32_tic6x_setup (struct bfd_link_info *info,
1621 struct elf32_tic6x_params *params)
1623 struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info);
1624 htab->params = *params;
1627 /* Determine if we're dealing with a DSBT object. */
1630 elf32_tic6x_using_dsbt (bfd *abfd)
1632 return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC,
1636 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt
1637 sections in DYNOBJ, and set up shortcuts to them in our hash
1641 elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
1643 struct elf32_tic6x_link_hash_table *htab;
1646 htab = elf32_tic6x_hash_table (info);
1650 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1654 flags = (SEC_ALLOC | SEC_LOAD
1655 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1656 htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt",
1658 if (htab->dsbt == NULL
1659 || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2)
1660 || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5))
1663 htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
1664 if (!bfd_link_pic (info))
1665 htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
1668 || (!bfd_link_pic (info) && !htab->srelbss))
1675 elf32_tic6x_mkobject (bfd *abfd)
1679 ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata),
1682 elf32_tic6x_set_use_rela_p (abfd, TRUE);
1686 /* Install relocation RELA into section SRELA, incrementing its
1690 elf32_tic6x_install_rela (bfd *output_bfd, asection *srela,
1691 Elf_Internal_Rela *rela)
1694 bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela);
1695 loc = srela->contents + off;
1696 BFD_ASSERT (off < srela->size);
1697 bfd_elf32_swap_reloca_out (output_bfd, rela, loc);
1700 /* Create a dynamic reloc against the GOT at offset OFFSET. The contents
1701 of the GOT at this offset have been initialized with the relocation. */
1704 elf32_tic6x_make_got_dynreloc (bfd *output_bfd,
1705 struct elf32_tic6x_link_hash_table *htab,
1706 asection *sym_sec, bfd_vma offset)
1708 asection *sgot = htab->elf.sgot;
1709 Elf_Internal_Rela outrel;
1712 outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset;
1713 outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset);
1714 if (sym_sec && sym_sec->output_section
1715 && ! bfd_is_abs_section (sym_sec->output_section)
1716 && ! bfd_is_und_section (sym_sec->output_section))
1718 dynindx = elf_section_data (sym_sec->output_section)->dynindx;
1719 outrel.r_addend -= sym_sec->output_section->vma;
1725 outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32);
1726 elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel);
1729 /* Finish up dynamic symbol handling. We set the contents of various
1730 dynamic sections here. */
1733 elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd,
1734 struct bfd_link_info *info,
1735 struct elf_link_hash_entry *h,
1736 Elf_Internal_Sym * sym)
1739 struct elf32_tic6x_link_hash_table *htab;
1741 htab = elf32_tic6x_hash_table (info);
1742 dynobj = htab->elf.dynobj;
1744 if (h->plt.offset != (bfd_vma) -1)
1747 bfd_vma got_section_offset, got_dp_offset, rela_offset;
1748 Elf_Internal_Rela rela;
1750 asection *plt, *gotplt, *relplt;
1751 const struct elf_backend_data *bed;
1753 bed = get_elf_backend_data (output_bfd);
1755 BFD_ASSERT (htab->elf.splt != NULL);
1756 plt = htab->elf.splt;
1757 gotplt = htab->elf.sgotplt;
1758 relplt = htab->elf.srelplt;
1760 /* This symbol has an entry in the procedure linkage table. Set
1763 if ((h->dynindx == -1
1764 && !((h->forced_local || bfd_link_executable (info))
1766 && h->type == STT_GNU_IFUNC))
1772 /* Get the index in the procedure linkage table which
1773 corresponds to this symbol. This is the index of this symbol
1774 in all the symbols for which we are making plt entries. The
1775 first entry in the procedure linkage table is reserved.
1777 Get the offset into the .got table of the entry that
1778 corresponds to this function. Each .got entry is 4 bytes.
1779 The first three are reserved.
1781 For static executables, we don't reserve anything. */
1783 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1784 got_section_offset = plt_index + bed->got_header_size / 4;
1785 got_dp_offset = got_section_offset + htab->params.dsbt_size;
1786 rela_offset = plt_index * sizeof (Elf32_External_Rela);
1788 got_section_offset *= 4;
1790 /* Fill in the entry in the procedure linkage table. */
1792 /* ldw .d2t2 *+B14($GOT(f)), b2 */
1793 bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e,
1794 plt->contents + h->plt.offset);
1795 /* mvk .s2 low(rela_offset), b0 */
1796 bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a,
1797 plt->contents + h->plt.offset + 4);
1798 /* mvkh .s2 high(rela_offset), b0 */
1799 bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a,
1800 plt->contents + h->plt.offset + 8);
1802 bfd_put_32 (output_bfd, 0x00002000,
1803 plt->contents + h->plt.offset + 12);
1805 bfd_put_32 (output_bfd, 0x00080362,
1806 plt->contents + h->plt.offset + 16);
1808 bfd_put_32 (output_bfd, 0x00008000,
1809 plt->contents + h->plt.offset + 20);
1811 /* Fill in the entry in the global offset table. */
1812 bfd_put_32 (output_bfd,
1813 (plt->output_section->vma + plt->output_offset),
1814 gotplt->contents + got_section_offset);
1816 /* Fill in the entry in the .rel.plt section. */
1817 rela.r_offset = (gotplt->output_section->vma
1818 + gotplt->output_offset
1819 + got_section_offset);
1820 rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT);
1822 loc = relplt->contents + rela_offset;
1823 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1825 if (!h->def_regular)
1827 /* Mark the symbol as undefined, rather than as defined in
1828 the .plt section. */
1829 sym->st_shndx = SHN_UNDEF;
1834 if (h->got.offset != (bfd_vma) -1)
1839 /* This symbol has an entry in the global offset table.
1842 sgot = bfd_get_linker_section (dynobj, ".got");
1843 srela = bfd_get_linker_section (dynobj, ".rela.got");
1844 BFD_ASSERT (sgot != NULL && srela != NULL);
1846 /* If this is a -Bsymbolic link, and the symbol is defined
1847 locally, we just want to emit a RELATIVE reloc. Likewise if
1848 the symbol was forced to be local because of a version file.
1849 The entry in the global offset table will already have been
1850 initialized in the relocate_section function. */
1851 if (bfd_link_pic (info)
1852 && (SYMBOLIC_BIND (info, h)
1853 || h->dynindx == -1 || h->forced_local) && h->def_regular)
1855 asection *s = h->root.u.def.section;
1856 elf32_tic6x_make_got_dynreloc (output_bfd, htab, s,
1857 h->got.offset & ~(bfd_vma) 1);
1861 Elf_Internal_Rela outrel;
1862 bfd_put_32 (output_bfd, (bfd_vma) 0,
1863 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
1864 outrel.r_offset = (sgot->output_section->vma
1865 + sgot->output_offset
1866 + (h->got.offset & ~(bfd_vma) 1));
1867 outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32);
1868 outrel.r_addend = 0;
1870 elf32_tic6x_install_rela (output_bfd, srela, &outrel);
1876 Elf_Internal_Rela rel;
1878 /* This symbol needs a copy reloc. Set it up. */
1880 if (h->dynindx == -1
1881 || (h->root.type != bfd_link_hash_defined
1882 && h->root.type != bfd_link_hash_defweak)
1883 || htab->srelbss == NULL)
1886 rel.r_offset = (h->root.u.def.value
1887 + h->root.u.def.section->output_section->vma
1888 + h->root.u.def.section->output_offset);
1889 rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY);
1892 elf32_tic6x_install_rela (output_bfd, htab->srelbss, &rel);
1895 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1896 if (h == elf_hash_table (info)->hdynamic
1897 || h == elf_hash_table (info)->hgot)
1898 sym->st_shndx = SHN_ABS;
1903 /* Unwinding tables are not referenced directly. This pass marks them as
1904 required if the corresponding code section is marked. */
1907 elf32_tic6x_gc_mark_extra_sections (struct bfd_link_info *info,
1908 elf_gc_mark_hook_fn gc_mark_hook)
1911 Elf_Internal_Shdr **elf_shdrp;
1914 _bfd_elf_gc_mark_extra_sections (info, gc_mark_hook);
1916 /* Marking EH data may cause additional code sections to be marked,
1917 requiring multiple passes. */
1922 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
1926 if (! is_tic6x_elf (sub))
1929 elf_shdrp = elf_elfsections (sub);
1930 for (o = sub->sections; o != NULL; o = o->next)
1932 Elf_Internal_Shdr *hdr;
1934 hdr = &elf_section_data (o)->this_hdr;
1935 if (hdr->sh_type == SHT_C6000_UNWIND
1937 && hdr->sh_link < elf_numsections (sub)
1939 && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark)
1942 if (!_bfd_elf_gc_mark (info, o, gc_mark_hook))
1952 /* Return TRUE if this is an unwinding table index. */
1955 is_tic6x_elf_unwind_section_name (const char *name)
1957 return (CONST_STRNEQ (name, ELF_STRING_C6000_unwind)
1958 || CONST_STRNEQ (name, ELF_STRING_C6000_unwind_once));
1962 /* Set the type and flags for an unwinding index table. We do this by
1963 the section name, which is a hack, but ought to work. */
1966 elf32_tic6x_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
1967 Elf_Internal_Shdr *hdr, asection *sec)
1971 name = bfd_get_section_name (abfd, sec);
1973 if (is_tic6x_elf_unwind_section_name (name))
1975 hdr->sh_type = SHT_C6000_UNWIND;
1976 hdr->sh_flags |= SHF_LINK_ORDER;
1982 /* Update the got entry reference counts for the section being removed. */
1985 elf32_tic6x_gc_sweep_hook (bfd *abfd,
1986 struct bfd_link_info *info,
1988 const Elf_Internal_Rela *relocs)
1990 struct elf32_tic6x_link_hash_table *htab;
1991 Elf_Internal_Shdr *symtab_hdr;
1992 struct elf_link_hash_entry **sym_hashes;
1993 bfd_signed_vma *local_got_refcounts;
1994 const Elf_Internal_Rela *rel, *relend;
1996 if (bfd_link_relocatable (info))
1999 htab = elf32_tic6x_hash_table (info);
2003 elf_section_data (sec)->local_dynrel = NULL;
2005 symtab_hdr = &elf_symtab_hdr (abfd);
2006 sym_hashes = elf_sym_hashes (abfd);
2007 local_got_refcounts = elf_local_got_refcounts (abfd);
2009 relend = relocs + sec->reloc_count;
2010 for (rel = relocs; rel < relend; rel++)
2012 unsigned long r_symndx;
2013 unsigned int r_type;
2014 struct elf_link_hash_entry *h = NULL;
2016 r_symndx = ELF32_R_SYM (rel->r_info);
2017 if (r_symndx >= symtab_hdr->sh_info)
2019 struct elf32_tic6x_link_hash_entry *eh;
2020 struct elf_dyn_relocs **pp;
2021 struct elf_dyn_relocs *p;
2023 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2024 while (h->root.type == bfd_link_hash_indirect
2025 || h->root.type == bfd_link_hash_warning)
2026 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2027 eh = (struct elf32_tic6x_link_hash_entry *) h;
2029 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2032 /* Everything must go for SEC. */
2038 r_type = ELF32_R_TYPE (rel->r_info);
2042 case R_C6000_SBR_GOT_U15_W:
2043 case R_C6000_SBR_GOT_L16_W:
2044 case R_C6000_SBR_GOT_H16_W:
2045 case R_C6000_EHTYPE:
2048 if (h->got.refcount > 0)
2049 h->got.refcount -= 1;
2051 else if (local_got_refcounts != NULL)
2053 if (local_got_refcounts[r_symndx] > 0)
2054 local_got_refcounts[r_symndx] -= 1;
2066 /* Adjust a symbol defined by a dynamic object and referenced by a
2067 regular object. The current definition is in some section of the
2068 dynamic object, but we're not including those sections. We have to
2069 change the definition to something the rest of the link can
2073 elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info,
2074 struct elf_link_hash_entry *h)
2076 struct elf32_tic6x_link_hash_table *htab;
2080 dynobj = elf_hash_table (info)->dynobj;
2082 /* Make sure we know what is going on here. */
2083 BFD_ASSERT (dynobj != NULL
2085 || h->u.weakdef != NULL
2086 || (h->def_dynamic && h->ref_regular && !h->def_regular)));
2088 /* If this is a function, put it in the procedure linkage table. We
2089 will fill in the contents of the procedure linkage table later,
2090 when we know the address of the .got section. */
2091 if (h->type == STT_FUNC
2094 if (h->plt.refcount <= 0
2095 || SYMBOL_CALLS_LOCAL (info, h)
2096 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2097 && h->root.type == bfd_link_hash_undefweak))
2099 /* This case can occur if we saw a PLT32 reloc in an input
2100 file, but the symbol was never referred to by a dynamic
2101 object, or if all references were garbage collected. In
2102 such a case, we don't actually need to build a procedure
2103 linkage table, and we can just do a PC32 reloc instead. */
2104 h->plt.offset = (bfd_vma) -1;
2111 /* If this is a weak symbol, and there is a real definition, the
2112 processor independent code will have arranged for us to see the
2113 real definition first, and we can just use the same value. */
2114 if (h->u.weakdef != NULL)
2116 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2117 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2118 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2119 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2120 h->non_got_ref = h->u.weakdef->non_got_ref;
2124 /* This is a reference to a symbol defined by a dynamic object which
2125 is not a function. */
2127 /* If we are creating a shared library, we must presume that the
2128 only references to the symbol are via the global offset table.
2129 For such cases we need not do anything here; the relocations will
2130 be handled correctly by relocate_section. */
2131 if (bfd_link_pic (info))
2134 /* If there are no references to this symbol that do not use the
2135 GOT, we don't need to generate a copy reloc. */
2136 if (!h->non_got_ref)
2139 /* If -z nocopyreloc was given, we won't generate them either. */
2140 if (info->nocopyreloc)
2146 htab = elf32_tic6x_hash_table (info);
2150 /* We must allocate the symbol in our .dynbss section, which will
2151 become part of the .bss section of the executable. There will be
2152 an entry for this symbol in the .dynsym section. The dynamic
2153 object will contain position independent code, so all references
2154 from the dynamic object to this symbol will go through the global
2155 offset table. The dynamic linker will use the .dynsym entry to
2156 determine the address it must put in the global offset table, so
2157 both the dynamic object and the regular object will refer to the
2158 same memory location for the variable. */
2160 /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
2161 copy the initial value out of the dynamic object and into the
2162 runtime process image. */
2163 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2165 htab->srelbss->size += sizeof (Elf32_External_Rela);
2171 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2175 elf32_tic6x_new_section_hook (bfd *abfd, asection *sec)
2179 /* Allocate target specific section data. */
2180 if (!sec->used_by_bfd)
2182 _tic6x_elf_section_data *sdata;
2183 bfd_size_type amt = sizeof (*sdata);
2185 sdata = (_tic6x_elf_section_data *) bfd_zalloc (abfd, amt);
2188 sec->used_by_bfd = sdata;
2191 ret = _bfd_elf_new_section_hook (abfd, sec);
2192 sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p;
2197 /* Return true if relocation REL against section SEC is a REL rather
2198 than RELA relocation. RELOCS is the first relocation in the
2199 section and ABFD is the bfd that contains SEC. */
2202 elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec,
2203 const Elf_Internal_Rela *relocs,
2204 const Elf_Internal_Rela *rel)
2206 Elf_Internal_Shdr *rel_hdr;
2207 const struct elf_backend_data *bed;
2209 /* To determine which flavor of relocation this is, we depend on the
2210 fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
2211 rel_hdr = elf_section_data (sec)->rel.hdr;
2212 if (rel_hdr == NULL)
2214 bed = get_elf_backend_data (abfd);
2215 return ((size_t) (rel - relocs)
2216 < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel);
2219 /* We need dynamic symbols for every section, since segments can
2220 relocate independently. */
2222 elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2223 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2226 switch (elf_section_data (p)->this_hdr.sh_type)
2230 /* If sh_type is yet undecided, assume it could be
2231 SHT_PROGBITS/SHT_NOBITS. */
2235 /* There shouldn't be section relative relocations
2236 against any other section. */
2243 elf32_tic6x_relocate_section (bfd *output_bfd,
2244 struct bfd_link_info *info,
2246 asection *input_section,
2248 Elf_Internal_Rela *relocs,
2249 Elf_Internal_Sym *local_syms,
2250 asection **local_sections)
2252 struct elf32_tic6x_link_hash_table *htab;
2253 Elf_Internal_Shdr *symtab_hdr;
2254 struct elf_link_hash_entry **sym_hashes;
2255 bfd_vma *local_got_offsets;
2256 Elf_Internal_Rela *rel;
2257 Elf_Internal_Rela *relend;
2258 bfd_boolean ok = TRUE;
2260 htab = elf32_tic6x_hash_table (info);
2261 symtab_hdr = & elf_symtab_hdr (input_bfd);
2262 sym_hashes = elf_sym_hashes (input_bfd);
2263 local_got_offsets = elf_local_got_offsets (input_bfd);
2265 relend = relocs + input_section->reloc_count;
2267 for (rel = relocs; rel < relend; rel ++)
2270 unsigned long r_symndx;
2272 reloc_howto_type *howto;
2273 Elf_Internal_Sym *sym;
2275 struct elf_link_hash_entry *h;
2276 bfd_vma off, off2, relocation;
2277 bfd_boolean unresolved_reloc;
2278 bfd_reloc_status_type r;
2279 struct bfd_link_hash_entry *sbh;
2282 r_type = ELF32_R_TYPE (rel->r_info);
2283 r_symndx = ELF32_R_SYM (rel->r_info);
2285 is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section,
2289 elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel);
2291 elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel);
2292 howto = bfd_reloc.howto;
2295 bfd_set_error (bfd_error_bad_value);
2302 unresolved_reloc = FALSE;
2304 if (r_symndx < symtab_hdr->sh_info)
2306 sym = local_syms + r_symndx;
2307 sec = local_sections[r_symndx];
2308 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2312 bfd_boolean warned, ignored;
2314 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2315 r_symndx, symtab_hdr, sym_hashes,
2317 unresolved_reloc, warned, ignored);
2320 if (sec != NULL && discarded_section (sec))
2321 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2322 rel, 1, relend, howto, 0, contents);
2324 if (bfd_link_relocatable (info))
2328 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2331 relocation = sec->output_offset + sym->st_value;
2332 r = _bfd_relocate_contents (howto, input_bfd, relocation,
2333 contents + rel->r_offset);
2343 case R_C6000_FPHEAD:
2345 /* No action needed. */
2348 case R_C6000_PCR_S21:
2349 /* A branch to an undefined weak symbol is turned into a
2350 "b .s2 B3" instruction if the existing insn is of the
2351 form "b .s2 symbol". */
2352 if (h ? h->root.type == bfd_link_hash_undefweak
2353 && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1)
2354 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2356 unsigned long oldval;
2357 oldval = bfd_get_32 (input_bfd, contents + rel->r_offset);
2359 if ((oldval & 0x7e) == 0x12)
2361 oldval &= 0xF0000001;
2362 bfd_put_32 (input_bfd, oldval | 0x000c0362,
2363 contents + rel->r_offset);
2369 case R_C6000_PCR_S12:
2370 case R_C6000_PCR_S10:
2371 case R_C6000_PCR_S7:
2373 && h->plt.offset != (bfd_vma) -1
2374 && htab->elf.splt != NULL)
2376 relocation = (htab->elf.splt->output_section->vma
2377 + htab->elf.splt->output_offset
2381 /* Generic PC-relative handling produces a value relative to
2382 the exact location of the relocation. Adjust it to be
2383 relative to the start of the fetch packet instead. */
2384 relocation += (input_section->output_section->vma
2385 + input_section->output_offset
2386 + rel->r_offset) & 0x1f;
2387 unresolved_reloc = FALSE;
2390 case R_C6000_PCR_H16:
2391 case R_C6000_PCR_L16:
2392 off = (input_section->output_section->vma
2393 + input_section->output_offset
2395 /* These must be calculated as R = S - FP(FP(PC) - A).
2396 PC, here, is the value we just computed in OFF. RELOCATION
2397 has the address of S + A. */
2398 relocation -= rel->r_addend;
2399 off2 = ((off & ~(bfd_vma)0x1f) - rel->r_addend) & (bfd_vma)~0x1f;
2400 off2 = relocation - off2;
2401 relocation = off + off2;
2404 case R_C6000_DSBT_INDEX:
2405 relocation = elf32_tic6x_hash_table (info)->params.dsbt_index;
2406 if (!bfd_link_pic (info) || relocation != 0)
2413 case R_C6000_ABS_S16:
2414 case R_C6000_ABS_L16:
2415 case R_C6000_ABS_H16:
2416 /* When generating a shared object or relocatable executable, these
2417 relocations are copied into the output file to be resolved at
2419 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
2420 && (input_section->flags & SEC_ALLOC)
2422 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2423 || h->root.type != bfd_link_hash_undefweak))
2425 Elf_Internal_Rela outrel;
2426 bfd_boolean skip, relocate;
2429 unresolved_reloc = FALSE;
2431 sreloc = elf_section_data (input_section)->sreloc;
2432 BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
2438 _bfd_elf_section_offset (output_bfd, info, input_section,
2440 if (outrel.r_offset == (bfd_vma) -1)
2442 else if (outrel.r_offset == (bfd_vma) -2)
2443 skip = TRUE, relocate = TRUE;
2444 outrel.r_offset += (input_section->output_section->vma
2445 + input_section->output_offset);
2448 memset (&outrel, 0, sizeof outrel);
2451 && (!bfd_link_pic (info)
2452 || !SYMBOLIC_BIND (info, h)
2453 || !h->def_regular))
2455 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2456 outrel.r_addend = rel->r_addend;
2462 outrel.r_addend = relocation + rel->r_addend;
2464 if (bfd_is_abs_section (sec))
2466 else if (sec == NULL || sec->owner == NULL)
2468 bfd_set_error (bfd_error_bad_value);
2475 osec = sec->output_section;
2476 indx = elf_section_data (osec)->dynindx;
2477 outrel.r_addend -= osec->vma;
2478 BFD_ASSERT (indx != 0);
2481 outrel.r_info = ELF32_R_INFO (indx, r_type);
2484 elf32_tic6x_install_rela (output_bfd, sreloc, &outrel);
2486 /* If this reloc is against an external symbol, we do not want to
2487 fiddle with the addend. Otherwise, we need to include the symbol
2488 value so that it becomes an addend for the dynamic reloc. */
2493 /* Generic logic OK. */
2496 case R_C6000_SBR_U15_B:
2497 case R_C6000_SBR_U15_H:
2498 case R_C6000_SBR_U15_W:
2499 case R_C6000_SBR_S16:
2500 case R_C6000_SBR_L16_B:
2501 case R_C6000_SBR_L16_H:
2502 case R_C6000_SBR_L16_W:
2503 case R_C6000_SBR_H16_B:
2504 case R_C6000_SBR_H16_H:
2505 case R_C6000_SBR_H16_W:
2506 sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE",
2507 FALSE, FALSE, TRUE);
2509 && (sbh->type == bfd_link_hash_defined
2510 || sbh->type == bfd_link_hash_defweak))
2512 if (h ? (h->root.type == bfd_link_hash_undefweak
2513 && (htab->elf.splt == NULL
2514 || h->plt.offset == (bfd_vma) -1))
2515 : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
2518 relocation -= (sbh->u.def.value
2519 + sbh->u.def.section->output_section->vma
2520 + sbh->u.def.section->output_offset);
2524 _bfd_error_handler (_("%B: SB-relative relocation but "
2525 "__c6xabi_DSBT_BASE not defined"),
2532 case R_C6000_SBR_GOT_U15_W:
2533 case R_C6000_SBR_GOT_L16_W:
2534 case R_C6000_SBR_GOT_H16_W:
2535 case R_C6000_EHTYPE:
2536 /* Relocation is to the entry for this symbol in the global
2538 if (htab->elf.sgot == NULL)
2545 off = h->got.offset;
2546 dyn = htab->elf.dynamic_sections_created;
2547 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2548 bfd_link_pic (info),
2550 || (bfd_link_pic (info)
2551 && SYMBOL_REFERENCES_LOCAL (info, h))
2552 || (ELF_ST_VISIBILITY (h->other)
2553 && h->root.type == bfd_link_hash_undefweak))
2555 /* This is actually a static link, or it is a
2556 -Bsymbolic link and the symbol is defined
2557 locally, or the symbol was forced to be local
2558 because of a version file. We must initialize
2559 this entry in the global offset table. Since the
2560 offset must always be a multiple of 4, we use the
2561 least significant bit to record whether we have
2562 initialized it already.
2564 When doing a dynamic link, we create a .rel.got
2565 relocation entry to initialize the value. This
2566 is done in the finish_dynamic_symbol routine. */
2571 bfd_put_32 (output_bfd, relocation,
2572 htab->elf.sgot->contents + off);
2575 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2576 bfd_link_pic (info),
2578 && !(ELF_ST_VISIBILITY (h->other)
2579 && h->root.type == bfd_link_hash_undefweak))
2580 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec,
2585 unresolved_reloc = FALSE;
2589 if (local_got_offsets == NULL)
2592 off = local_got_offsets[r_symndx];
2594 /* The offset must always be a multiple of 4. We use
2595 the least significant bit to record whether we have
2596 already generated the necessary reloc. */
2601 bfd_put_32 (output_bfd, relocation,
2602 htab->elf.sgot->contents + off);
2604 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
2605 elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off);
2607 local_got_offsets[r_symndx] |= 1;
2611 if (off >= (bfd_vma) -2)
2615 relocation = (htab->elf.sgot->output_section->vma
2616 + htab->elf.sgot->output_offset + off
2617 - htab->dsbt->output_section->vma
2618 - htab->dsbt->output_offset);
2620 relocation = (htab->elf.sgot->output_section->vma
2621 + htab->elf.sgot->output_offset + off
2622 - htab->elf.sgotplt->output_section->vma
2623 - htab->elf.sgotplt->output_offset);
2625 if (rel->r_addend != 0)
2627 /* We can't do anything for a relocation which is against
2628 a symbol *plus offset*. GOT holds relocations for
2629 symbols. Make this an error; the compiler isn't
2630 allowed to pass us these kinds of things. */
2633 (_("%B, section %A: relocation %s with non-zero addend %d"
2634 " against local symbol"),
2637 elf32_tic6x_howto_table[r_type].name,
2641 (_("%B, section %A: relocation %s with non-zero addend %d"
2642 " against symbol `%s'"),
2645 elf32_tic6x_howto_table[r_type].name,
2647 h->root.root.string[0] != '\0' ? h->root.root.string
2648 : _("[whose name is lost]"));
2650 bfd_set_error (bfd_error_bad_value);
2655 case R_C6000_PREL31:
2657 && h->plt.offset != (bfd_vma) -1
2658 && htab->elf.splt != NULL)
2660 relocation = (htab->elf.splt->output_section->vma
2661 + htab->elf.splt->output_offset
2667 /* Invalid in relocatable object. */
2669 /* Unknown relocation. */
2670 _bfd_error_handler (_("%B: invalid relocation type %d"),
2676 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2677 contents, rel->r_offset,
2678 relocation, rel->r_addend);
2681 if (r == bfd_reloc_ok
2682 && howto->complain_on_overflow == complain_overflow_bitfield)
2684 /* Generic overflow handling accepts cases the ABI says
2685 should be rejected for R_C6000_ABS16 and
2687 bfd_vma value = (relocation + rel->r_addend) & 0xffffffff;
2688 bfd_vma sbit = 1 << (howto->bitsize - 1);
2689 bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff;
2690 bfd_vma value_sbits = value & sbits;
2692 if (value_sbits != 0
2693 && value_sbits != sbit
2694 && value_sbits != sbits)
2695 r = bfd_reloc_overflow;
2698 if (r != bfd_reloc_ok)
2701 const char *error_message;
2704 name = h->root.root.string;
2707 name = bfd_elf_string_from_elf_section (input_bfd,
2708 symtab_hdr->sh_link,
2713 name = bfd_section_name (input_bfd, sec);
2718 case bfd_reloc_overflow:
2719 /* If the overflowing reloc was to an undefined symbol,
2720 we have already printed one error message and there
2721 is no point complaining again. */
2722 if (!h || h->root.type != bfd_link_hash_undefined)
2723 (*info->callbacks->reloc_overflow)
2724 (info, (h ? &h->root : NULL), name, howto->name,
2725 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2728 case bfd_reloc_undefined:
2729 (*info->callbacks->undefined_symbol) (info, name, input_bfd,
2731 rel->r_offset, TRUE);
2734 case bfd_reloc_outofrange:
2735 error_message = _("out of range");
2738 case bfd_reloc_notsupported:
2739 error_message = _("unsupported relocation");
2742 case bfd_reloc_dangerous:
2743 error_message = _("dangerous relocation");
2747 error_message = _("unknown error");
2751 BFD_ASSERT (error_message != NULL);
2752 (*info->callbacks->reloc_dangerous)
2753 (info, error_message, input_bfd, input_section, rel->r_offset);
2763 /* Look through the relocs for a section during the first phase, and
2764 calculate needed space in the global offset table, procedure linkage
2765 table, and dynamic reloc sections. */
2768 elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info,
2769 asection *sec, const Elf_Internal_Rela *relocs)
2771 struct elf32_tic6x_link_hash_table *htab;
2772 Elf_Internal_Shdr *symtab_hdr;
2773 struct elf_link_hash_entry **sym_hashes;
2774 const Elf_Internal_Rela *rel;
2775 const Elf_Internal_Rela *rel_end;
2778 if (bfd_link_relocatable (info))
2781 htab = elf32_tic6x_hash_table (info);
2782 symtab_hdr = &elf_symtab_hdr (abfd);
2783 sym_hashes = elf_sym_hashes (abfd);
2785 /* Create dynamic sections for relocatable executables so that we can
2786 copy relocations. */
2787 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
2788 && ! htab->elf.dynamic_sections_created)
2790 if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
2796 rel_end = relocs + sec->reloc_count;
2797 for (rel = relocs; rel < rel_end; rel++)
2799 unsigned int r_type;
2800 unsigned long r_symndx;
2801 struct elf_link_hash_entry *h;
2802 Elf_Internal_Sym *isym;
2804 r_symndx = ELF32_R_SYM (rel->r_info);
2805 r_type = ELF32_R_TYPE (rel->r_info);
2807 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
2809 _bfd_error_handler (_("%B: bad symbol index: %d"),
2814 if (r_symndx < symtab_hdr->sh_info)
2816 /* A local symbol. */
2817 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2826 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2827 while (h->root.type == bfd_link_hash_indirect
2828 || h->root.type == bfd_link_hash_warning)
2829 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2831 /* PR15323, ref flags aren't set for references in the same
2833 h->root.non_ir_ref = 1;
2838 case R_C6000_PCR_S21:
2839 case R_C6000_PREL31:
2840 /* This symbol requires a procedure linkage table entry. We
2841 actually build the entry in adjust_dynamic_symbol,
2842 because this might be a case of linking PIC code which is
2843 never referenced by a dynamic object, in which case we
2844 don't need to generate a procedure linkage table entry
2847 /* If this is a local symbol, we resolve it directly without
2848 creating a procedure linkage table entry. */
2853 h->plt.refcount += 1;
2856 case R_C6000_SBR_GOT_U15_W:
2857 case R_C6000_SBR_GOT_L16_W:
2858 case R_C6000_SBR_GOT_H16_W:
2859 case R_C6000_EHTYPE:
2860 /* This symbol requires a global offset table entry. */
2863 h->got.refcount += 1;
2867 bfd_signed_vma *local_got_refcounts;
2869 /* This is a global offset table entry for a local symbol. */
2870 local_got_refcounts = elf_local_got_refcounts (abfd);
2871 if (local_got_refcounts == NULL)
2875 size = symtab_hdr->sh_info;
2876 size *= (sizeof (bfd_signed_vma)
2877 + sizeof (bfd_vma) + sizeof(char));
2878 local_got_refcounts = bfd_zalloc (abfd, size);
2879 if (local_got_refcounts == NULL)
2881 elf_local_got_refcounts (abfd) = local_got_refcounts;
2883 local_got_refcounts[r_symndx] += 1;
2886 if (htab->elf.sgot == NULL)
2888 if (htab->elf.dynobj == NULL)
2889 htab->elf.dynobj = abfd;
2890 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
2895 case R_C6000_DSBT_INDEX:
2896 /* We'd like to check for nonzero dsbt_index here, but it's
2897 set up only after check_relocs is called. Instead, we
2898 store the number of R_C6000_DSBT_INDEX relocs in the
2899 pc_count field, and potentially discard the extra space
2900 in elf32_tic6x_allocate_dynrelocs. */
2901 if (!bfd_link_pic (info))
2908 case R_C6000_ABS_S16:
2909 case R_C6000_ABS_L16:
2910 case R_C6000_ABS_H16:
2911 /* If we are creating a shared library, and this is a reloc
2912 against a global symbol, or a non PC relative reloc
2913 against a local symbol, then we need to copy the reloc
2914 into the shared library. However, if we are linking with
2915 -Bsymbolic, we do not need to copy a reloc against a
2916 global symbol which is defined in an object we are
2917 including in the link (i.e., DEF_REGULAR is set). At
2918 this point we have not seen all the input files, so it is
2919 possible that DEF_REGULAR is not set now but will be set
2920 later (it is never cleared). In case of a weak definition,
2921 DEF_REGULAR may be cleared later by a strong definition in
2922 a shared library. We account for that possibility below by
2923 storing information in the relocs_copied field of the hash
2924 table entry. A similar situation occurs when creating
2925 shared libraries and symbol visibility changes render the
2928 If on the other hand, we are creating an executable, we
2929 may need to keep relocations for symbols satisfied by a
2930 dynamic library if we manage to avoid copy relocs for the
2932 if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
2933 && (sec->flags & SEC_ALLOC) != 0)
2935 struct elf_dyn_relocs *p;
2936 struct elf_dyn_relocs **head;
2938 /* We must copy these reloc types into the output file.
2939 Create a reloc section in dynobj and make room for
2943 if (htab->elf.dynobj == NULL)
2944 htab->elf.dynobj = abfd;
2946 sreloc = _bfd_elf_make_dynamic_reloc_section
2947 (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE);
2953 /* If this is a global symbol, we count the number of
2954 relocations we need for this symbol. */
2957 head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs;
2961 /* Track dynamic relocs needed for local syms too.
2962 We really need local syms available to do this
2967 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2971 vpp = &elf_section_data (s)->local_dynrel;
2972 head = (struct elf_dyn_relocs **)vpp;
2976 if (p == NULL || p->sec != sec)
2978 bfd_size_type amt = sizeof *p;
2979 p = bfd_alloc (htab->elf.dynobj, amt);
2990 if (r_type == R_C6000_DSBT_INDEX)
2995 case R_C6000_SBR_U15_B:
2996 case R_C6000_SBR_U15_H:
2997 case R_C6000_SBR_U15_W:
2998 case R_C6000_SBR_S16:
2999 case R_C6000_SBR_L16_B:
3000 case R_C6000_SBR_L16_H:
3001 case R_C6000_SBR_L16_W:
3002 case R_C6000_SBR_H16_B:
3003 case R_C6000_SBR_H16_H:
3004 case R_C6000_SBR_H16_W:
3005 if (h != NULL && bfd_link_executable (info))
3007 /* For B14-relative addresses, we might need a copy
3022 elf32_tic6x_add_symbol_hook (bfd *abfd,
3023 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3024 Elf_Internal_Sym *sym,
3025 const char **namep ATTRIBUTE_UNUSED,
3026 flagword *flagsp ATTRIBUTE_UNUSED,
3030 switch (sym->st_shndx)
3032 case SHN_TIC6X_SCOMMON:
3033 *secp = bfd_make_section_old_way (abfd, ".scommon");
3034 (*secp)->flags |= SEC_IS_COMMON;
3035 *valp = sym->st_size;
3036 (void) bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value));
3044 elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
3046 elf_symbol_type *elfsym;
3048 elfsym = (elf_symbol_type *) asym;
3049 switch (elfsym->internal_elf_sym.st_shndx)
3051 case SHN_TIC6X_SCOMMON:
3052 if (tic6x_elf_scom_section.name == NULL)
3054 /* Initialize the small common section. */
3055 tic6x_elf_scom_section.name = ".scommon";
3056 tic6x_elf_scom_section.flags = SEC_IS_COMMON;
3057 tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section;
3058 tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol;
3059 tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr;
3060 tic6x_elf_scom_symbol.name = ".scommon";
3061 tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM;
3062 tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section;
3063 tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol;
3065 asym->section = &tic6x_elf_scom_section;
3066 asym->value = elfsym->internal_elf_sym.st_size;
3072 elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3073 const char *name ATTRIBUTE_UNUSED,
3074 Elf_Internal_Sym *sym,
3075 asection *input_sec,
3076 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3078 /* If we see a common symbol, which implies a relocatable link, then
3079 if a symbol was small common in an input file, mark it as small
3080 common in the output file. */
3081 if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
3082 sym->st_shndx = SHN_TIC6X_SCOMMON;
3088 elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
3092 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
3094 *retval = SHN_TIC6X_SCOMMON;
3101 /* Allocate space in .plt, .got and associated reloc sections for
3105 elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3107 struct bfd_link_info *info;
3108 struct elf32_tic6x_link_hash_table *htab;
3109 struct elf32_tic6x_link_hash_entry *eh;
3110 struct elf_dyn_relocs *p;
3112 if (h->root.type == bfd_link_hash_indirect)
3115 eh = (struct elf32_tic6x_link_hash_entry *) h;
3116 info = (struct bfd_link_info *) inf;
3117 htab = elf32_tic6x_hash_table (info);
3119 if (htab->elf.dynamic_sections_created && h->plt.refcount > 0)
3121 /* Make sure this symbol is output as a dynamic symbol.
3122 Undefined weak syms won't yet be marked as dynamic. */
3123 if (h->dynindx == -1 && !h->forced_local)
3125 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3129 if (bfd_link_pic (info)
3130 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
3132 asection *s = htab->elf.splt;
3134 /* If this is the first .plt entry, make room for the special
3137 s->size += PLT_ENTRY_SIZE;
3139 h->plt.offset = s->size;
3141 /* If this symbol is not defined in a regular file, and we are
3142 not generating a shared library, then set the symbol to this
3143 location in the .plt. This is required to make function
3144 pointers compare as equal between the normal executable and
3145 the shared library. */
3146 if (! bfd_link_pic (info) && !h->def_regular)
3148 h->root.u.def.section = s;
3149 h->root.u.def.value = h->plt.offset;
3152 /* Make room for this entry. */
3153 s->size += PLT_ENTRY_SIZE;
3154 /* We also need to make an entry in the .got.plt section, which
3155 will be placed in the .got section by the linker script. */
3156 htab->elf.sgotplt->size += 4;
3157 /* We also need to make an entry in the .rel.plt section. */
3158 htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
3162 h->plt.offset = (bfd_vma) -1;
3168 h->plt.offset = (bfd_vma) -1;
3172 if (h->got.refcount > 0)
3176 /* Make sure this symbol is output as a dynamic symbol.
3177 Undefined weak syms won't yet be marked as dynamic. */
3178 if (h->dynindx == -1
3179 && !h->forced_local)
3181 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3186 h->got.offset = s->size;
3189 if (!(ELF_ST_VISIBILITY (h->other)
3190 && h->root.type == bfd_link_hash_undefweak))
3191 htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
3194 h->got.offset = (bfd_vma) -1;
3196 if (eh->dyn_relocs == NULL)
3199 /* Discard relocs on undefined weak syms with non-default
3201 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (htab->obfd))
3203 /* We use the pc_count field to hold the number of
3204 R_C6000_DSBT_INDEX relocs. */
3205 if (htab->params.dsbt_index != 0)
3207 struct elf_dyn_relocs **pp;
3209 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3211 p->count -= p->pc_count;
3220 if (eh->dyn_relocs != NULL
3221 && h->root.type == bfd_link_hash_undefweak)
3223 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3224 eh->dyn_relocs = NULL;
3226 /* Make sure undefined weak symbols are output as a dynamic
3228 else if (h->dynindx == -1
3229 && !h->forced_local)
3231 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3237 /* Finally, allocate space. */
3238 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3242 sreloc = elf_section_data (p->sec)->sreloc;
3244 BFD_ASSERT (sreloc != NULL);
3245 sreloc->size += p->count * sizeof (Elf32_External_Rela);
3251 /* Find any dynamic relocs that apply to read-only sections. */
3254 elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3256 struct elf32_tic6x_link_hash_entry *eh;
3257 struct elf_dyn_relocs *p;
3259 eh = (struct elf32_tic6x_link_hash_entry *) h;
3260 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3262 asection *s = p->sec->output_section;
3264 if (s != NULL && (s->flags & SEC_READONLY) != 0)
3266 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3268 info->flags |= DF_TEXTREL;
3270 /* Not an error, just cut short the traversal. */
3277 /* Set the sizes of the dynamic sections. */
3280 elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
3282 struct elf32_tic6x_link_hash_table *htab;
3288 htab = elf32_tic6x_hash_table (info);
3289 dynobj = htab->elf.dynobj;
3293 if (htab->elf.dynamic_sections_created)
3295 /* Set the contents of the .interp section to the interpreter. */
3296 if (bfd_link_executable (info) && !info->nointerp)
3298 s = bfd_get_linker_section (dynobj, ".interp");
3301 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3302 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3306 /* Set up .got offsets for local syms, and space for local dynamic
3308 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
3310 bfd_signed_vma *local_got;
3311 bfd_signed_vma *end_local_got;
3312 bfd_size_type locsymcount;
3313 Elf_Internal_Shdr *symtab_hdr;
3316 for (s = ibfd->sections; s != NULL; s = s->next)
3318 struct elf_dyn_relocs *p;
3320 for (p = ((struct elf_dyn_relocs *)
3321 elf_section_data (s)->local_dynrel);
3325 if (!bfd_is_abs_section (p->sec)
3326 && bfd_is_abs_section (p->sec->output_section))
3328 /* Input section has been discarded, either because
3329 it is a copy of a linkonce section or due to
3330 linker script /DISCARD/, so we'll be discarding
3333 else if (p->count != 0)
3335 srel = elf_section_data (p->sec)->sreloc;
3336 srel->size += p->count * sizeof (Elf32_External_Rela);
3337 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3338 info->flags |= DF_TEXTREL;
3343 local_got = elf_local_got_refcounts (ibfd);
3347 symtab_hdr = &elf_symtab_hdr (ibfd);
3348 locsymcount = symtab_hdr->sh_info;
3349 end_local_got = local_got + locsymcount;
3351 srel = htab->elf.srelgot;
3352 for (; local_got < end_local_got; ++local_got)
3356 *local_got = s->size;
3359 if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
3361 srel->size += sizeof (Elf32_External_Rela);
3365 *local_got = (bfd_vma) -1;
3369 /* Allocate global sym .plt and .got entries, and space for global
3370 sym dynamic relocs. */
3371 elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info);
3373 /* We now have determined the sizes of the various dynamic sections.
3374 Allocate memory for them. */
3376 for (s = dynobj->sections; s != NULL; s = s->next)
3378 bfd_boolean strip_section = TRUE;
3380 if ((s->flags & SEC_LINKER_CREATED) == 0)
3383 if (s == htab->dsbt)
3384 s->size = 4 * htab->params.dsbt_size;
3385 else if (s == htab->elf.splt
3386 || s == htab->elf.sgot
3387 || s == htab->elf.sgotplt
3388 || s == htab->sdynbss)
3390 /* Strip this section if we don't need it; see the
3392 /* We'd like to strip these sections if they aren't needed, but if
3393 we've exported dynamic symbols from them we must leave them.
3394 It's too late to tell BFD to get rid of the symbols. */
3396 if (htab->elf.hplt != NULL)
3397 strip_section = FALSE;
3399 /* Round up the size of the PLT section to a multiple of 32. */
3400 if (s == htab->elf.splt && s->size > 0)
3401 s->size = (s->size + 31) & ~(bfd_vma)31;
3403 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
3406 && s != htab->elf.srelplt)
3409 /* We use the reloc_count field as a counter if we need
3410 to copy relocs into the output file. */
3415 /* It's not one of our sections, so don't allocate space. */
3421 /* If we don't need this section, strip it from the
3422 output file. This is mostly to handle .rel.bss and
3423 .rel.plt. We must create both sections in
3424 create_dynamic_sections, because they must be created
3425 before the linker maps input sections to output
3426 sections. The linker does that before
3427 adjust_dynamic_symbol is called, and it is that
3428 function which decides whether anything needs to go
3429 into these sections. */
3431 s->flags |= SEC_EXCLUDE;
3435 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3438 /* Allocate memory for the section contents. We use bfd_zalloc
3439 here in case unused entries are not reclaimed before the
3440 section's contents are written out. This should not happen,
3441 but this way if it does, we get a R_C6000_NONE reloc instead
3443 s->contents = bfd_zalloc (dynobj, s->size);
3444 if (s->contents == NULL)
3448 if (htab->elf.dynamic_sections_created)
3450 /* Add some entries to the .dynamic section. We fill in the
3451 values later, in elf32_tic6x_finish_dynamic_sections, but we
3452 must add the entries now so that we get the correct size for
3453 the .dynamic section. The DT_DEBUG entry is filled in by the
3454 dynamic linker and used by the debugger. */
3455 #define add_dynamic_entry(TAG, VAL) \
3456 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3458 if (bfd_link_executable (info))
3460 if (!add_dynamic_entry (DT_DEBUG, 0))
3464 if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0)
3465 || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size)
3466 || !add_dynamic_entry (DT_C6000_DSBT_INDEX,
3467 htab->params.dsbt_index))
3470 if (htab->elf.splt->size != 0)
3472 if (!add_dynamic_entry (DT_PLTGOT, 0)
3473 || !add_dynamic_entry (DT_PLTRELSZ, 0)
3474 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3475 || !add_dynamic_entry (DT_JMPREL, 0))
3481 if (!add_dynamic_entry (DT_RELA, 0)
3482 || !add_dynamic_entry (DT_RELASZ, 0)
3483 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3486 /* If any dynamic relocs apply to a read-only section,
3487 then we need a DT_TEXTREL entry. */
3488 if ((info->flags & DF_TEXTREL) == 0)
3489 elf_link_hash_traverse (&htab->elf,
3490 elf32_tic6x_readonly_dynrelocs, info);
3492 if ((info->flags & DF_TEXTREL) != 0)
3494 if (!add_dynamic_entry (DT_TEXTREL, 0))
3499 #undef add_dynamic_entry
3504 /* This function is called after all the input files have been read,
3505 and the input sections have been assigned to output sections. */
3508 elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
3510 if (elf32_tic6x_using_dsbt (output_bfd) && !bfd_link_relocatable (info)
3511 && !bfd_elf_stack_segment_size (output_bfd, info,
3512 "__stacksize", DEFAULT_STACK_SIZE))
3519 elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3520 struct bfd_link_info *info)
3522 struct elf32_tic6x_link_hash_table *htab;
3526 htab = elf32_tic6x_hash_table (info);
3527 dynobj = htab->elf.dynobj;
3528 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3530 if (elf_hash_table (info)->dynamic_sections_created)
3532 Elf32_External_Dyn * dyncon;
3533 Elf32_External_Dyn * dynconend;
3535 BFD_ASSERT (sdyn != NULL);
3537 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3538 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3540 for (; dyncon < dynconend; dyncon++)
3542 Elf_Internal_Dyn dyn;
3545 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3552 case DT_C6000_DSBT_BASE:
3554 dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset);
3558 s = htab->elf.sgotplt;
3559 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3563 s = htab->elf.srelplt;
3564 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3568 s = htab->elf.srelplt;
3569 dyn.d_un.d_val = s->size;
3572 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3575 /* Fill in the first entry in the procedure linkage table. */
3576 if (htab->elf.splt && htab->elf.splt->size > 0)
3578 bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma
3579 + htab->elf.sgotplt->output_offset
3580 - htab->dsbt->output_section->vma
3581 - htab->dsbt->output_offset) / 4;
3583 /* ldw .D2T2 *+b14[$GOT(0)],b2 */
3584 bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e,
3585 htab->elf.splt->contents);
3586 /* ldw .D2T2 *+b14[$GOT(4)],b1 */
3587 bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e,
3588 htab->elf.splt->contents + 4);
3590 bfd_put_32 (output_bfd, 0x00004000,
3591 htab->elf.splt->contents + 8);
3593 bfd_put_32 (output_bfd, 0x00080362,
3594 htab->elf.splt->contents + 12);
3596 bfd_put_32 (output_bfd, 0x00008000,
3597 htab->elf.splt->contents + 16);
3599 elf_section_data (htab->elf.splt->output_section)
3600 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
3607 /* Return address for Ith PLT stub in section PLT, for relocation REL
3608 or (bfd_vma) -1 if it should not be included. */
3611 elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt,
3612 const arelent *rel ATTRIBUTE_UNUSED)
3614 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3618 elf32_tic6x_obj_attrs_arg_type (int tag)
3620 if (tag == Tag_ABI_compatibility)
3621 return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL;
3623 return ATTR_TYPE_FLAG_STR_VAL;
3625 return ATTR_TYPE_FLAG_INT_VAL;
3629 elf32_tic6x_obj_attrs_order (int num)
3631 if (num == LEAST_KNOWN_OBJ_ATTRIBUTE)
3632 return Tag_ABI_conformance;
3633 if ((num - 1) < Tag_ABI_conformance)
3639 elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag)
3641 if ((tag & 127) < 64)
3644 (_("%B: error: unknown mandatory EABI object attribute %d"),
3646 bfd_set_error (bfd_error_bad_value);
3652 (_("%B: warning: unknown EABI object attribute %d"),
3658 /* Merge the Tag_ISA attribute values ARCH1 and ARCH2
3659 and return the merged value. At present, all merges succeed, so no
3660 return value for errors is defined. */
3663 elf32_tic6x_merge_arch_attributes (int arch1, int arch2)
3665 int min_arch, max_arch;
3667 min_arch = (arch1 < arch2 ? arch1 : arch2);
3668 max_arch = (arch1 > arch2 ? arch1 : arch2);
3670 /* In most cases, the numerically greatest value is the correct
3671 merged value, but merging C64 and C67 results in C674X. */
3672 if ((min_arch == C6XABI_Tag_ISA_C67X
3673 || min_arch == C6XABI_Tag_ISA_C67XP)
3674 && (max_arch == C6XABI_Tag_ISA_C64X
3675 || max_arch == C6XABI_Tag_ISA_C64XP))
3676 return C6XABI_Tag_ISA_C674X;
3681 /* Convert a Tag_ABI_array_object_alignment or
3682 Tag_ABI_array_object_align_expected tag value TAG to a
3683 corresponding alignment value; return the alignment, or -1 for an
3684 unknown tag value. */
3687 elf32_tic6x_tag_to_array_alignment (int tag)
3705 /* Convert a Tag_ABI_array_object_alignment or
3706 Tag_ABI_array_object_align_expected alignment ALIGN to a
3707 corresponding tag value; return the tag value. */
3710 elf32_tic6x_array_alignment_to_tag (int align)
3728 /* Merge attributes from IBFD and OBFD, returning TRUE if the merge
3729 succeeded, FALSE otherwise. */
3732 elf32_tic6x_merge_attributes (bfd *ibfd, bfd *obfd)
3734 bfd_boolean result = TRUE;
3735 obj_attribute *in_attr;
3736 obj_attribute *out_attr;
3738 int array_align_in, array_align_out, array_expect_in, array_expect_out;
3740 if (!elf_known_obj_attributes_proc (obfd)[0].i)
3742 /* This is the first object. Copy the attributes. */
3743 _bfd_elf_copy_obj_attributes (ibfd, obfd);
3745 out_attr = elf_known_obj_attributes_proc (obfd);
3747 /* Use the Tag_null value to indicate the attributes have been
3754 in_attr = elf_known_obj_attributes_proc (ibfd);
3755 out_attr = elf_known_obj_attributes_proc (obfd);
3757 /* No specification yet for handling of unknown attributes, so just
3758 ignore them and handle known ones. */
3760 if (out_attr[Tag_ABI_stack_align_preserved].i
3761 < in_attr[Tag_ABI_stack_align_needed].i)
3764 (_("error: %B requires more stack alignment than %B preserves"),
3768 if (in_attr[Tag_ABI_stack_align_preserved].i
3769 < out_attr[Tag_ABI_stack_align_needed].i)
3772 (_("error: %B requires more stack alignment than %B preserves"),
3777 array_align_in = elf32_tic6x_tag_to_array_alignment
3778 (in_attr[Tag_ABI_array_object_alignment].i);
3779 if (array_align_in == -1)
3782 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3786 array_align_out = elf32_tic6x_tag_to_array_alignment
3787 (out_attr[Tag_ABI_array_object_alignment].i);
3788 if (array_align_out == -1)
3791 (_("error: unknown Tag_ABI_array_object_alignment value in %B"),
3795 array_expect_in = elf32_tic6x_tag_to_array_alignment
3796 (in_attr[Tag_ABI_array_object_align_expected].i);
3797 if (array_expect_in == -1)
3800 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3804 array_expect_out = elf32_tic6x_tag_to_array_alignment
3805 (out_attr[Tag_ABI_array_object_align_expected].i);
3806 if (array_expect_out == -1)
3809 (_("error: unknown Tag_ABI_array_object_align_expected value in %B"),
3814 if (array_align_out < array_expect_in)
3817 (_("error: %B requires more array alignment than %B preserves"),
3821 if (array_align_in < array_expect_out)
3824 (_("error: %B requires more array alignment than %B preserves"),
3829 for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++)
3834 out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i,
3838 case Tag_ABI_wchar_t:
3839 if (out_attr[i].i == 0)
3840 out_attr[i].i = in_attr[i].i;
3841 if (out_attr[i].i != 0
3842 && in_attr[i].i != 0
3843 && out_attr[i].i != in_attr[i].i)
3846 (_("warning: %B and %B differ in wchar_t size"), obfd, ibfd);
3850 case Tag_ABI_stack_align_needed:
3851 if (out_attr[i].i < in_attr[i].i)
3852 out_attr[i].i = in_attr[i].i;
3855 case Tag_ABI_stack_align_preserved:
3856 if (out_attr[i].i > in_attr[i].i)
3857 out_attr[i].i = in_attr[i].i;
3861 if (out_attr[i].i != in_attr[i].i)
3864 (_("warning: %B and %B differ in whether code is "
3865 "compiled for DSBT"),
3872 if (out_attr[i].i > in_attr[i].i)
3873 out_attr[i].i = in_attr[i].i;
3876 case Tag_ABI_array_object_alignment:
3877 if (array_align_out != -1
3878 && array_align_in != -1
3879 && array_align_out > array_align_in)
3881 = elf32_tic6x_array_alignment_to_tag (array_align_in);
3884 case Tag_ABI_array_object_align_expected:
3885 if (array_expect_out != -1
3886 && array_expect_in != -1
3887 && array_expect_out < array_expect_in)
3889 = elf32_tic6x_array_alignment_to_tag (array_expect_in);
3892 case Tag_ABI_conformance:
3893 /* Merging for this attribute is not specified. As on ARM,
3894 treat a missing attribute as no claim to conform and only
3895 merge identical values. */
3896 if (out_attr[i].s == NULL
3897 || in_attr[i].s == NULL
3898 || strcmp (out_attr[i].s,
3900 out_attr[i].s = NULL;
3903 case Tag_ABI_compatibility:
3904 /* Merged in _bfd_elf_merge_object_attributes. */
3909 = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i);
3913 if (in_attr[i].type && !out_attr[i].type)
3914 out_attr[i].type = in_attr[i].type;
3917 /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
3918 if (!_bfd_elf_merge_object_attributes (ibfd, obfd))
3921 result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd);
3927 elf32_tic6x_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3929 if (!_bfd_generic_verify_endian_match (ibfd, obfd))
3932 if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (obfd))
3935 if (!elf32_tic6x_merge_attributes (ibfd, obfd))
3941 /* Add a new unwind edit to the list described by HEAD, TAIL. If TINDEX is zero,
3942 adds the edit to the start of the list. (The list must be built in order of
3943 ascending TINDEX: the function's callers are primarily responsible for
3944 maintaining that condition). */
3947 elf32_tic6x_add_unwind_table_edit (tic6x_unwind_table_edit **head,
3948 tic6x_unwind_table_edit **tail,
3949 tic6x_unwind_edit_type type,
3950 asection *linked_section,
3951 unsigned int tindex)
3953 tic6x_unwind_table_edit *new_edit = (tic6x_unwind_table_edit *)
3954 xmalloc (sizeof (tic6x_unwind_table_edit));
3956 new_edit->type = type;
3957 new_edit->linked_section = linked_section;
3958 new_edit->index = tindex;
3962 new_edit->next = NULL;
3965 (*tail)->next = new_edit;
3974 new_edit->next = *head;
3983 static _tic6x_elf_section_data *
3984 get_tic6x_elf_section_data (asection * sec)
3986 if (sec && sec->owner && is_tic6x_elf (sec->owner))
3987 return elf32_tic6x_section_data (sec);
3993 /* Increase the size of EXIDX_SEC by ADJUST bytes. ADJUST must be negative. */
3995 elf32_tic6x_adjust_exidx_size (asection *exidx_sec, int adjust)
3999 if (!exidx_sec->rawsize)
4000 exidx_sec->rawsize = exidx_sec->size;
4002 bfd_set_section_size (exidx_sec->owner, exidx_sec, exidx_sec->size + adjust);
4003 out_sec = exidx_sec->output_section;
4004 /* Adjust size of output section. */
4005 bfd_set_section_size (out_sec->owner, out_sec, out_sec->size +adjust);
4008 /* Insert an EXIDX_CANTUNWIND marker at the end of a section. */
4010 elf32_tic6x_insert_cantunwind_after (asection *text_sec, asection *exidx_sec)
4012 struct _tic6x_elf_section_data *exidx_data;
4014 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4015 elf32_tic6x_add_unwind_table_edit (
4016 &exidx_data->u.exidx.unwind_edit_list,
4017 &exidx_data->u.exidx.unwind_edit_tail,
4018 INSERT_EXIDX_CANTUNWIND_AT_END, text_sec, UINT_MAX);
4020 elf32_tic6x_adjust_exidx_size (exidx_sec, 8);
4023 /* Scan .cx6abi.exidx tables, and create a list describing edits which
4024 should be made to those tables, such that:
4026 1. Regions without unwind data are marked with EXIDX_CANTUNWIND entries.
4027 2. Duplicate entries are merged together (EXIDX_CANTUNWIND, or unwind
4028 codes which have been inlined into the index).
4030 If MERGE_EXIDX_ENTRIES is false, duplicate entries are not merged.
4032 The edits are applied when the tables are written
4033 (in elf32_tic6x_write_section).
4037 elf32_tic6x_fix_exidx_coverage (asection **text_section_order,
4038 unsigned int num_text_sections,
4039 struct bfd_link_info *info,
4040 bfd_boolean merge_exidx_entries)
4043 unsigned int last_second_word = 0, i;
4044 asection *last_exidx_sec = NULL;
4045 asection *last_text_sec = NULL;
4046 int last_unwind_type = -1;
4048 /* Walk over all EXIDX sections, and create backlinks from the corrsponding
4050 for (inp = info->input_bfds; inp != NULL; inp = inp->link.next)
4054 for (sec = inp->sections; sec != NULL; sec = sec->next)
4056 struct bfd_elf_section_data *elf_sec = elf_section_data (sec);
4057 Elf_Internal_Shdr *hdr = &elf_sec->this_hdr;
4059 if (!hdr || hdr->sh_type != SHT_C6000_UNWIND)
4062 if (elf_sec->linked_to)
4064 Elf_Internal_Shdr *linked_hdr
4065 = &elf_section_data (elf_sec->linked_to)->this_hdr;
4066 struct _tic6x_elf_section_data *linked_sec_tic6x_data
4067 = get_tic6x_elf_section_data (linked_hdr->bfd_section);
4069 if (linked_sec_tic6x_data == NULL)
4072 /* Link this .c6xabi.exidx section back from the
4073 text section it describes. */
4074 linked_sec_tic6x_data->u.text.tic6x_exidx_sec = sec;
4079 /* Walk all text sections in order of increasing VMA. Eilminate duplicate
4080 index table entries (EXIDX_CANTUNWIND and inlined unwind opcodes),
4081 and add EXIDX_CANTUNWIND entries for sections with no unwind table data. */
4083 for (i = 0; i < num_text_sections; i++)
4085 asection *sec = text_section_order[i];
4086 asection *exidx_sec;
4087 struct _tic6x_elf_section_data *tic6x_data
4088 = get_tic6x_elf_section_data (sec);
4089 struct _tic6x_elf_section_data *exidx_data;
4090 bfd_byte *contents = NULL;
4091 int deleted_exidx_bytes = 0;
4093 tic6x_unwind_table_edit *unwind_edit_head = NULL;
4094 tic6x_unwind_table_edit *unwind_edit_tail = NULL;
4095 Elf_Internal_Shdr *hdr;
4098 if (tic6x_data == NULL)
4101 exidx_sec = tic6x_data->u.text.tic6x_exidx_sec;
4102 if (exidx_sec == NULL)
4104 /* Section has no unwind data. */
4105 if (last_unwind_type == 0 || !last_exidx_sec)
4108 /* Ignore zero sized sections. */
4112 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4113 last_unwind_type = 0;
4117 /* Skip /DISCARD/ sections. */
4118 if (bfd_is_abs_section (exidx_sec->output_section))
4121 hdr = &elf_section_data (exidx_sec)->this_hdr;
4122 if (hdr->sh_type != SHT_C6000_UNWIND)
4125 exidx_data = get_tic6x_elf_section_data (exidx_sec);
4126 if (exidx_data == NULL)
4129 ibfd = exidx_sec->owner;
4131 if (hdr->contents != NULL)
4132 contents = hdr->contents;
4133 else if (! bfd_malloc_and_get_section (ibfd, exidx_sec, &contents))
4137 for (j = 0; j < hdr->sh_size; j += 8)
4139 unsigned int second_word = bfd_get_32 (ibfd, contents + j + 4);
4143 /* An EXIDX_CANTUNWIND entry. */
4144 if (second_word == 1)
4146 if (last_unwind_type == 0)
4150 /* Inlined unwinding data. Merge if equal to previous. */
4151 else if ((second_word & 0x80000000) != 0)
4153 if (merge_exidx_entries
4154 && last_second_word == second_word
4155 && last_unwind_type == 1)
4158 last_second_word = second_word;
4160 /* Normal table entry. In theory we could merge these too,
4161 but duplicate entries are likely to be much less common. */
4167 elf32_tic6x_add_unwind_table_edit (&unwind_edit_head,
4168 &unwind_edit_tail, DELETE_EXIDX_ENTRY, NULL, j / 8);
4170 deleted_exidx_bytes += 8;
4173 last_unwind_type = unwind_type;
4176 /* Free contents if we allocated it ourselves. */
4177 if (contents != hdr->contents)
4180 /* Record edits to be applied later (in elf32_tic6x_write_section). */
4181 exidx_data->u.exidx.unwind_edit_list = unwind_edit_head;
4182 exidx_data->u.exidx.unwind_edit_tail = unwind_edit_tail;
4184 if (deleted_exidx_bytes > 0)
4185 elf32_tic6x_adjust_exidx_size (exidx_sec, -deleted_exidx_bytes);
4187 last_exidx_sec = exidx_sec;
4188 last_text_sec = sec;
4191 /* Add terminating CANTUNWIND entry. */
4192 if (last_exidx_sec && last_unwind_type != 0)
4193 elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
4198 /* Add ADDEND to lower 31 bits of VAL, leaving other bits unmodified. */
4200 static unsigned long
4201 elf32_tic6x_add_low31 (unsigned long val, bfd_vma addend)
4203 return (val & ~0x7ffffffful) | ((val + addend) & 0x7ffffffful);
4206 /* Copy an .c6xabi.exidx table entry, adding OFFSET to (applied) PREL31
4207 relocations. OFFSET is in bytes, and will be scaled before encoding. */
4211 elf32_tic6x_copy_exidx_entry (bfd *output_bfd, bfd_byte *to, bfd_byte *from,
4214 unsigned long first_word = bfd_get_32 (output_bfd, from);
4215 unsigned long second_word = bfd_get_32 (output_bfd, from + 4);
4218 /* High bit of first word is supposed to be zero. */
4219 if ((first_word & 0x80000000ul) == 0)
4220 first_word = elf32_tic6x_add_low31 (first_word, offset);
4222 /* If the high bit of the first word is clear, and the bit pattern is not 0x1
4223 (EXIDX_CANTUNWIND), this is an offset to an .c6xabi.extab entry. */
4224 if ((second_word != 0x1) && ((second_word & 0x80000000ul) == 0))
4225 second_word = elf32_tic6x_add_low31 (second_word, offset);
4227 bfd_put_32 (output_bfd, first_word, to);
4228 bfd_put_32 (output_bfd, second_word, to + 4);
4231 /* Do the actual mangling of exception index tables. */
4234 elf32_tic6x_write_section (bfd *output_bfd,
4235 struct bfd_link_info *link_info,
4239 _tic6x_elf_section_data *tic6x_data;
4240 struct elf32_tic6x_link_hash_table *globals
4241 = elf32_tic6x_hash_table (link_info);
4242 bfd_vma offset = sec->output_section->vma + sec->output_offset;
4244 if (globals == NULL)
4247 /* If this section has not been allocated an _tic6x_elf_section_data
4248 structure then we cannot record anything. */
4249 tic6x_data = get_tic6x_elf_section_data (sec);
4250 if (tic6x_data == NULL)
4253 if (tic6x_data->elf.this_hdr.sh_type != SHT_C6000_UNWIND)
4256 tic6x_unwind_table_edit *edit_node
4257 = tic6x_data->u.exidx.unwind_edit_list;
4258 /* Now, sec->size is the size of the section we will write. The original
4259 size (before we merged duplicate entries and inserted EXIDX_CANTUNWIND
4260 markers) was sec->rawsize. (This isn't the case if we perform no
4261 edits, then rawsize will be zero and we should use size). */
4262 bfd_byte *edited_contents = (bfd_byte *) bfd_malloc (sec->size);
4263 unsigned int input_size = sec->rawsize ? sec->rawsize : sec->size;
4264 unsigned int in_index, out_index;
4265 bfd_vma add_to_offsets = 0;
4267 for (in_index = 0, out_index = 0; in_index * 8 < input_size || edit_node;)
4271 unsigned int edit_index = edit_node->index;
4273 if (in_index < edit_index && in_index * 8 < input_size)
4275 elf32_tic6x_copy_exidx_entry (output_bfd,
4276 edited_contents + out_index * 8,
4277 contents + in_index * 8, add_to_offsets);
4281 else if (in_index == edit_index
4282 || (in_index * 8 >= input_size
4283 && edit_index == UINT_MAX))
4285 switch (edit_node->type)
4287 case DELETE_EXIDX_ENTRY:
4289 add_to_offsets += 8;
4292 case INSERT_EXIDX_CANTUNWIND_AT_END:
4294 asection *text_sec = edit_node->linked_section;
4295 bfd_vma text_offset = text_sec->output_section->vma
4296 + text_sec->output_offset
4298 bfd_vma exidx_offset = offset + out_index * 8;
4299 unsigned long prel31_offset;
4301 /* Note: this is meant to be equivalent to an
4302 R_C6000_PREL31 relocation. These synthetic
4303 EXIDX_CANTUNWIND markers are not relocated by the
4304 usual BFD method. */
4305 prel31_offset = ((text_offset - exidx_offset) >> 1)
4308 /* First address we can't unwind. */
4309 bfd_put_32 (output_bfd, prel31_offset,
4310 &edited_contents[out_index * 8]);
4312 /* Code for EXIDX_CANTUNWIND. */
4313 bfd_put_32 (output_bfd, 0x1,
4314 &edited_contents[out_index * 8 + 4]);
4317 add_to_offsets -= 8;
4322 edit_node = edit_node->next;
4327 /* No more edits, copy remaining entries verbatim. */
4328 elf32_tic6x_copy_exidx_entry (output_bfd,
4329 edited_contents + out_index * 8,
4330 contents + in_index * 8, add_to_offsets);
4336 if (!(sec->flags & SEC_EXCLUDE) && !(sec->flags & SEC_NEVER_LOAD))
4337 bfd_set_section_contents (output_bfd, sec->output_section,
4339 (file_ptr) sec->output_offset, sec->size);
4344 #define TARGET_LITTLE_SYM tic6x_elf32_le_vec
4345 #define TARGET_LITTLE_NAME "elf32-tic6x-le"
4346 #define TARGET_BIG_SYM tic6x_elf32_be_vec
4347 #define TARGET_BIG_NAME "elf32-tic6x-be"
4348 #define ELF_ARCH bfd_arch_tic6x
4349 #define ELF_TARGET_ID TIC6X_ELF_DATA
4350 #define ELF_MACHINE_CODE EM_TI_C6000
4351 #define ELF_MAXPAGESIZE 0x1000
4352 #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
4353 #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
4354 #define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
4355 #define bfd_elf32_mkobject elf32_tic6x_mkobject
4356 #define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
4357 #define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
4358 #define elf_backend_stack_align 8
4359 #define elf_backend_can_gc_sections 1
4360 #define elf_backend_default_use_rela_p 1
4361 #define elf_backend_may_use_rel_p 1
4362 #define elf_backend_may_use_rela_p 1
4363 #define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
4364 #define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
4365 #define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
4366 #define elf_backend_obj_attrs_section ".c6xabi.attributes"
4367 #define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
4368 #define elf_backend_obj_attrs_vendor "c6xabi"
4369 #define elf_backend_can_refcount 1
4370 #define elf_backend_want_got_plt 1
4371 #define elf_backend_want_dynbss 1
4372 #define elf_backend_plt_readonly 1
4373 #define elf_backend_rela_normal 1
4374 #define elf_backend_got_header_size 8
4375 #define elf_backend_fake_sections elf32_tic6x_fake_sections
4376 #define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook
4377 #define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections
4378 #define elf_backend_create_dynamic_sections \
4379 elf32_tic6x_create_dynamic_sections
4380 #define elf_backend_adjust_dynamic_symbol \
4381 elf32_tic6x_adjust_dynamic_symbol
4382 #define elf_backend_check_relocs elf32_tic6x_check_relocs
4383 #define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
4384 #define elf_backend_symbol_processing elf32_tic6x_symbol_processing
4385 #define elf_backend_link_output_symbol_hook \
4386 elf32_tic6x_link_output_symbol_hook
4387 #define elf_backend_section_from_bfd_section \
4388 elf32_tic6x_section_from_bfd_section
4389 #define elf_backend_relocate_section elf32_tic6x_relocate_section
4390 #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
4391 #define elf_backend_finish_dynamic_symbol \
4392 elf32_tic6x_finish_dynamic_symbol
4393 #define elf_backend_always_size_sections \
4394 elf32_tic6x_always_size_sections
4395 #define elf_backend_size_dynamic_sections \
4396 elf32_tic6x_size_dynamic_sections
4397 #define elf_backend_finish_dynamic_sections \
4398 elf32_tic6x_finish_dynamic_sections
4399 #define bfd_elf32_bfd_final_link \
4400 elf32_tic6x_final_link
4401 #define elf_backend_write_section elf32_tic6x_write_section
4402 #define elf_info_to_howto elf32_tic6x_info_to_howto
4403 #define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
4405 #undef elf_backend_omit_section_dynsym
4406 #define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
4407 #define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
4409 #include "elf32-target.h"
4412 #define elf32_bed elf32_tic6x_linux_bed
4414 #undef TARGET_LITTLE_SYM
4415 #define TARGET_LITTLE_SYM tic6x_elf32_linux_le_vec
4416 #undef TARGET_LITTLE_NAME
4417 #define TARGET_LITTLE_NAME "elf32-tic6x-linux-le"
4418 #undef TARGET_BIG_SYM
4419 #define TARGET_BIG_SYM tic6x_elf32_linux_be_vec
4420 #undef TARGET_BIG_NAME
4421 #define TARGET_BIG_NAME "elf32-tic6x-linux-be"
4423 #define ELF_OSABI ELFOSABI_C6000_LINUX
4425 #include "elf32-target.h"
4428 #define elf32_bed elf32_tic6x_elf_bed
4430 #undef TARGET_LITTLE_SYM
4431 #define TARGET_LITTLE_SYM tic6x_elf32_c6000_le_vec
4432 #undef TARGET_LITTLE_NAME
4433 #define TARGET_LITTLE_NAME "elf32-tic6x-elf-le"
4434 #undef TARGET_BIG_SYM
4435 #define TARGET_BIG_SYM tic6x_elf32_c6000_be_vec
4436 #undef TARGET_BIG_NAME
4437 #define TARGET_BIG_NAME "elf32-tic6x-elf-be"
4439 #define ELF_OSABI ELFOSABI_C6000_ELFABI
4441 #include "elf32-target.h"