Commit | Line | Data |
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40b36596 | 1 | /* 32-bit ELF support for TI C6X |
1d7e9d18 | 2 | Copyright 2010, 2011, 2012 |
40b36596 | 3 | Free Software Foundation, Inc. |
c0621d88 NS |
4 | Contributed by Joseph Myers <joseph@codesourcery.com> |
5 | Bernd Schmidt <bernds@codesourcery.com> | |
40b36596 JM |
6 | |
7 | This file is part of BFD, the Binary File Descriptor library. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
22 | MA 02110-1301, USA. */ | |
23 | ||
24 | #include "sysdep.h" | |
fbd9ad90 | 25 | #include <limits.h> |
40b36596 JM |
26 | #include "bfd.h" |
27 | #include "libbfd.h" | |
28 | #include "libiberty.h" | |
29 | #include "elf-bfd.h" | |
30 | #include "elf/tic6x.h" | |
41820509 JM |
31 | #include "elf32-tic6x.h" |
32 | ||
ac145307 BS |
33 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0" |
34 | ||
35 | /* DSBT binaries have a default 128K stack. */ | |
36 | #define DEFAULT_STACK_SIZE 0x20000 | |
37 | ||
38 | /* The size in bytes of an entry in the procedure linkage table. */ | |
39 | #define PLT_ENTRY_SIZE 24 | |
40 | ||
41 | /* TI C6X ELF linker hash table. */ | |
42 | ||
43 | struct elf32_tic6x_link_hash_table | |
44 | { | |
45 | struct elf_link_hash_table elf; | |
46 | ||
47 | /* Short-cuts to get to dynamic linker sections. */ | |
48 | asection *sdynbss; | |
49 | asection *srelbss; | |
50 | ||
51 | /* C6X specific command line arguments. */ | |
52 | struct elf32_tic6x_params params; | |
53 | ||
54 | /* Small local sym cache. */ | |
55 | struct sym_cache sym_cache; | |
56 | ||
57 | /* The output BFD, for convenience. */ | |
58 | bfd *obfd; | |
59 | ||
60 | /* The .dsbt section. */ | |
61 | asection *dsbt; | |
62 | }; | |
63 | ||
64 | /* Get the TI C6X ELF linker hash table from a link_info structure. */ | |
65 | ||
66 | #define elf32_tic6x_hash_table(p) \ | |
67 | ((struct elf32_tic6x_link_hash_table *) ((p)->hash)) | |
68 | ||
69 | /* TI C6X ELF linker hash entry. */ | |
70 | ||
71 | struct elf32_tic6x_link_hash_entry | |
72 | { | |
73 | struct elf_link_hash_entry elf; | |
74 | ||
75 | /* Track dynamic relocs copied for this symbol. */ | |
76 | struct elf_dyn_relocs *dyn_relocs; | |
77 | }; | |
78 | ||
fbd9ad90 PB |
79 | typedef enum |
80 | { | |
81 | DELETE_EXIDX_ENTRY, | |
82 | INSERT_EXIDX_CANTUNWIND_AT_END | |
83 | } | |
84 | tic6x_unwind_edit_type; | |
85 | ||
86 | /* A (sorted) list of edits to apply to an unwind table. */ | |
87 | typedef struct tic6x_unwind_table_edit | |
88 | { | |
89 | tic6x_unwind_edit_type type; | |
90 | /* Note: we sometimes want to insert an unwind entry corresponding to a | |
91 | section different from the one we're currently writing out, so record the | |
92 | (text) section this edit relates to here. */ | |
93 | asection *linked_section; | |
94 | unsigned int index; | |
95 | struct tic6x_unwind_table_edit *next; | |
96 | } | |
97 | tic6x_unwind_table_edit; | |
98 | ||
99 | typedef struct _tic6x_elf_section_data | |
100 | { | |
101 | /* Information about mapping symbols. */ | |
102 | struct bfd_elf_section_data elf; | |
103 | /* Information about unwind tables. */ | |
104 | union | |
105 | { | |
106 | /* Unwind info attached to a text section. */ | |
107 | struct | |
108 | { | |
109 | asection *tic6x_exidx_sec; | |
110 | } text; | |
111 | ||
112 | /* Unwind info attached to an .c6xabi.exidx section. */ | |
113 | struct | |
114 | { | |
115 | tic6x_unwind_table_edit *unwind_edit_list; | |
116 | tic6x_unwind_table_edit *unwind_edit_tail; | |
117 | } exidx; | |
118 | } u; | |
119 | } | |
120 | _tic6x_elf_section_data; | |
121 | ||
122 | #define elf32_tic6x_section_data(sec) \ | |
123 | ((_tic6x_elf_section_data *) elf_section_data (sec)) | |
124 | ||
41820509 JM |
125 | struct elf32_tic6x_obj_tdata |
126 | { | |
127 | struct elf_obj_tdata root; | |
128 | ||
129 | /* Whether to use RELA relocations when generating relocations. | |
130 | This is a per-object flag to allow the assembler to generate REL | |
131 | relocations for use in linker testcases. */ | |
132 | bfd_boolean use_rela_p; | |
133 | }; | |
134 | ||
135 | #define elf32_tic6x_tdata(abfd) \ | |
136 | ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any) | |
40b36596 | 137 | |
ac145307 BS |
138 | #define is_tic6x_elf(bfd) \ |
139 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
140 | && elf_tdata (bfd) != NULL \ | |
141 | && elf_object_id (bfd) == TIC6X_ELF_DATA) | |
142 | ||
143 | /* C6X ELF uses two common sections. One is the usual one, and the | |
144 | other is for small objects. All the small objects are kept | |
145 | together, and then referenced via the gp pointer, which yields | |
146 | faster assembler code. This is what we use for the small common | |
147 | section. This approach is copied from ecoff.c. */ | |
148 | static asection tic6x_elf_scom_section; | |
149 | static asymbol tic6x_elf_scom_symbol; | |
150 | static asymbol *tic6x_elf_scom_symbol_ptr; | |
151 | ||
40b36596 JM |
152 | static reloc_howto_type elf32_tic6x_howto_table[] = |
153 | { | |
154 | HOWTO (R_C6000_NONE, /* type */ | |
155 | 0, /* rightshift */ | |
156 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
157 | 0, /* bitsize */ | |
158 | FALSE, /* pc_relative */ | |
159 | 0, /* bitpos */ | |
160 | complain_overflow_dont,/* complain_on_overflow */ | |
161 | bfd_elf_generic_reloc, /* special_function */ | |
162 | "R_C6000_NONE", /* name */ | |
41820509 JM |
163 | FALSE, /* partial_inplace */ |
164 | 0, /* src_mask */ | |
165 | 0, /* dst_mask */ | |
166 | FALSE), /* pcrel_offset */ | |
167 | HOWTO (R_C6000_ABS32, /* type */ | |
168 | 0, /* rightshift */ | |
169 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
170 | 32, /* bitsize */ | |
171 | FALSE, /* pc_relative */ | |
172 | 0, /* bitpos */ | |
173 | complain_overflow_dont,/* complain_on_overflow */ | |
174 | bfd_elf_generic_reloc, /* special_function */ | |
175 | "R_C6000_ABS32", /* name */ | |
176 | FALSE, /* partial_inplace */ | |
177 | 0, /* src_mask */ | |
178 | 0xffffffff, /* dst_mask */ | |
179 | FALSE), /* pcrel_offset */ | |
180 | HOWTO (R_C6000_ABS16, /* type */ | |
181 | 0, /* rightshift */ | |
182 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
183 | 16, /* bitsize */ | |
184 | FALSE, /* pc_relative */ | |
185 | 0, /* bitpos */ | |
186 | complain_overflow_bitfield,/* complain_on_overflow */ | |
187 | bfd_elf_generic_reloc, /* special_function */ | |
188 | "R_C6000_ABS16", /* name */ | |
189 | FALSE, /* partial_inplace */ | |
190 | 0, /* src_mask */ | |
191 | 0x0000ffff, /* dst_mask */ | |
192 | FALSE), /* pcrel_offset */ | |
193 | HOWTO (R_C6000_ABS8, /* type */ | |
194 | 0, /* rightshift */ | |
195 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
196 | 8, /* bitsize */ | |
197 | FALSE, /* pc_relative */ | |
198 | 0, /* bitpos */ | |
199 | complain_overflow_bitfield,/* complain_on_overflow */ | |
200 | bfd_elf_generic_reloc, /* special_function */ | |
201 | "R_C6000_ABS8", /* name */ | |
202 | FALSE, /* partial_inplace */ | |
203 | 0, /* src_mask */ | |
204 | 0x000000ff, /* dst_mask */ | |
205 | FALSE), /* pcrel_offset */ | |
206 | HOWTO (R_C6000_PCR_S21, /* type */ | |
207 | 2, /* rightshift */ | |
208 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
209 | 21, /* bitsize */ | |
210 | TRUE, /* pc_relative */ | |
211 | 7, /* bitpos */ | |
212 | complain_overflow_signed,/* complain_on_overflow */ | |
213 | bfd_elf_generic_reloc, /* special_function */ | |
214 | "R_C6000_PCR_S21", /* name */ | |
215 | FALSE, /* partial_inplace */ | |
216 | 0, /* src_mask */ | |
217 | 0x0fffff80, /* dst_mask */ | |
218 | TRUE), /* pcrel_offset */ | |
219 | HOWTO (R_C6000_PCR_S12, /* type */ | |
220 | 2, /* rightshift */ | |
221 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
222 | 12, /* bitsize */ | |
223 | TRUE, /* pc_relative */ | |
224 | 16, /* bitpos */ | |
225 | complain_overflow_signed,/* complain_on_overflow */ | |
226 | bfd_elf_generic_reloc, /* special_function */ | |
227 | "R_C6000_PCR_S12", /* name */ | |
228 | FALSE, /* partial_inplace */ | |
229 | 0, /* src_mask */ | |
230 | 0x0fff0000, /* dst_mask */ | |
231 | TRUE), /* pcrel_offset */ | |
232 | HOWTO (R_C6000_PCR_S10, /* type */ | |
233 | 2, /* rightshift */ | |
234 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
235 | 10, /* bitsize */ | |
236 | TRUE, /* pc_relative */ | |
237 | 13, /* bitpos */ | |
238 | complain_overflow_signed,/* complain_on_overflow */ | |
239 | bfd_elf_generic_reloc, /* special_function */ | |
240 | "R_C6000_PCR_S10", /* name */ | |
241 | FALSE, /* partial_inplace */ | |
242 | 0, /* src_mask */ | |
243 | 0x007fe000, /* dst_mask */ | |
244 | TRUE), /* pcrel_offset */ | |
245 | HOWTO (R_C6000_PCR_S7, /* type */ | |
246 | 2, /* rightshift */ | |
247 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
248 | 7, /* bitsize */ | |
249 | TRUE, /* pc_relative */ | |
250 | 16, /* bitpos */ | |
251 | complain_overflow_signed,/* complain_on_overflow */ | |
252 | bfd_elf_generic_reloc, /* special_function */ | |
253 | "R_C6000_PCR_S7", /* name */ | |
254 | FALSE, /* partial_inplace */ | |
255 | 0, /* src_mask */ | |
256 | 0x007f0000, /* dst_mask */ | |
257 | TRUE), /* pcrel_offset */ | |
258 | HOWTO (R_C6000_ABS_S16, /* type */ | |
259 | 0, /* rightshift */ | |
260 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
261 | 16, /* bitsize */ | |
262 | FALSE, /* pc_relative */ | |
263 | 7, /* bitpos */ | |
264 | complain_overflow_signed,/* complain_on_overflow */ | |
265 | bfd_elf_generic_reloc, /* special_function */ | |
266 | "R_C6000_ABS_S16", /* name */ | |
267 | FALSE, /* partial_inplace */ | |
268 | 0, /* src_mask */ | |
269 | 0x007fff80, /* dst_mask */ | |
270 | FALSE), /* pcrel_offset */ | |
271 | HOWTO (R_C6000_ABS_L16, /* type */ | |
272 | 0, /* rightshift */ | |
273 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
274 | 16, /* bitsize */ | |
275 | FALSE, /* pc_relative */ | |
276 | 7, /* bitpos */ | |
277 | complain_overflow_dont,/* complain_on_overflow */ | |
278 | bfd_elf_generic_reloc, /* special_function */ | |
279 | "R_C6000_ABS_L16", /* name */ | |
280 | FALSE, /* partial_inplace */ | |
281 | 0, /* src_mask */ | |
282 | 0x007fff80, /* dst_mask */ | |
283 | FALSE), /* pcrel_offset */ | |
284 | HOWTO (R_C6000_ABS_H16, /* type */ | |
285 | 16, /* rightshift */ | |
286 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
287 | 16, /* bitsize */ | |
288 | FALSE, /* pc_relative */ | |
289 | 7, /* bitpos */ | |
290 | complain_overflow_dont,/* complain_on_overflow */ | |
291 | bfd_elf_generic_reloc, /* special_function */ | |
292 | "R_C6000_ABS_H16", /* name */ | |
293 | FALSE, /* partial_inplace */ | |
294 | 0, /* src_mask */ | |
295 | 0x007fff80, /* dst_mask */ | |
296 | FALSE), /* pcrel_offset */ | |
297 | HOWTO (R_C6000_SBR_U15_B, /* type */ | |
298 | 0, /* rightshift */ | |
299 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
300 | 15, /* bitsize */ | |
301 | FALSE, /* pc_relative */ | |
302 | 8, /* bitpos */ | |
303 | complain_overflow_unsigned,/* complain_on_overflow */ | |
304 | bfd_elf_generic_reloc, /* special_function */ | |
305 | "R_C6000_SBR_U15_B", /* name */ | |
306 | FALSE, /* partial_inplace */ | |
307 | 0, /* src_mask */ | |
308 | 0x007fff00, /* dst_mask */ | |
309 | FALSE), /* pcrel_offset */ | |
310 | HOWTO (R_C6000_SBR_U15_H, /* type */ | |
311 | 1, /* rightshift */ | |
312 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
313 | 15, /* bitsize */ | |
314 | FALSE, /* pc_relative */ | |
315 | 8, /* bitpos */ | |
316 | complain_overflow_unsigned,/* complain_on_overflow */ | |
317 | bfd_elf_generic_reloc, /* special_function */ | |
318 | "R_C6000_SBR_U15_H", /* name */ | |
319 | FALSE, /* partial_inplace */ | |
320 | 0, /* src_mask */ | |
321 | 0x007fff00, /* dst_mask */ | |
322 | FALSE), /* pcrel_offset */ | |
323 | HOWTO (R_C6000_SBR_U15_W, /* type */ | |
324 | 2, /* rightshift */ | |
325 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
326 | 15, /* bitsize */ | |
327 | FALSE, /* pc_relative */ | |
328 | 8, /* bitpos */ | |
329 | complain_overflow_unsigned,/* complain_on_overflow */ | |
330 | bfd_elf_generic_reloc, /* special_function */ | |
331 | "R_C6000_SBR_U15_W", /* name */ | |
332 | FALSE, /* partial_inplace */ | |
333 | 0, /* src_mask */ | |
334 | 0x007fff00, /* dst_mask */ | |
335 | FALSE), /* pcrel_offset */ | |
336 | HOWTO (R_C6000_SBR_S16, /* type */ | |
337 | 0, /* rightshift */ | |
338 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
339 | 16, /* bitsize */ | |
340 | FALSE, /* pc_relative */ | |
341 | 7, /* bitpos */ | |
342 | complain_overflow_signed,/* complain_on_overflow */ | |
343 | bfd_elf_generic_reloc, /* special_function */ | |
344 | "R_C6000_SBR_S16", /* name */ | |
345 | FALSE, /* partial_inplace */ | |
346 | 0, /* src_mask */ | |
347 | 0x007fff80, /* dst_mask */ | |
348 | FALSE), /* pcrel_offset */ | |
349 | HOWTO (R_C6000_SBR_L16_B, /* type */ | |
350 | 0, /* rightshift */ | |
351 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
352 | 16, /* bitsize */ | |
353 | FALSE, /* pc_relative */ | |
354 | 7, /* bitpos */ | |
355 | complain_overflow_dont,/* complain_on_overflow */ | |
356 | bfd_elf_generic_reloc, /* special_function */ | |
357 | "R_C6000_SBR_L16_B", /* name */ | |
358 | FALSE, /* partial_inplace */ | |
359 | 0, /* src_mask */ | |
360 | 0x007fff80, /* dst_mask */ | |
361 | FALSE), /* pcrel_offset */ | |
362 | HOWTO (R_C6000_SBR_L16_H, /* type */ | |
363 | 1, /* rightshift */ | |
364 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
365 | 16, /* bitsize */ | |
366 | FALSE, /* pc_relative */ | |
367 | 7, /* bitpos */ | |
368 | complain_overflow_dont,/* complain_on_overflow */ | |
369 | bfd_elf_generic_reloc, /* special_function */ | |
370 | "R_C6000_SBR_L16_H", /* name */ | |
371 | FALSE, /* partial_inplace */ | |
372 | 0, /* src_mask */ | |
373 | 0x007fff80, /* dst_mask */ | |
374 | FALSE), /* pcrel_offset */ | |
375 | HOWTO (R_C6000_SBR_L16_W, /* type */ | |
376 | 2, /* rightshift */ | |
377 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
378 | 16, /* bitsize */ | |
379 | FALSE, /* pc_relative */ | |
380 | 7, /* bitpos */ | |
381 | complain_overflow_dont,/* complain_on_overflow */ | |
382 | bfd_elf_generic_reloc, /* special_function */ | |
383 | "R_C6000_SBR_L16_W", /* name */ | |
384 | FALSE, /* partial_inplace */ | |
385 | 0, /* src_mask */ | |
386 | 0x007fff80, /* dst_mask */ | |
387 | FALSE), /* pcrel_offset */ | |
388 | HOWTO (R_C6000_SBR_H16_B, /* type */ | |
389 | 16, /* rightshift */ | |
390 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
391 | 16, /* bitsize */ | |
392 | FALSE, /* pc_relative */ | |
393 | 7, /* bitpos */ | |
394 | complain_overflow_dont,/* complain_on_overflow */ | |
395 | bfd_elf_generic_reloc, /* special_function */ | |
396 | "R_C6000_SBR_H16_B", /* name */ | |
397 | FALSE, /* partial_inplace */ | |
398 | 0, /* src_mask */ | |
399 | 0x007fff80, /* dst_mask */ | |
400 | FALSE), /* pcrel_offset */ | |
401 | HOWTO (R_C6000_SBR_H16_H, /* type */ | |
402 | 17, /* rightshift */ | |
403 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
404 | 16, /* bitsize */ | |
405 | FALSE, /* pc_relative */ | |
406 | 7, /* bitpos */ | |
407 | complain_overflow_dont,/* complain_on_overflow */ | |
408 | bfd_elf_generic_reloc, /* special_function */ | |
409 | "R_C6000_SBR_H16_H", /* name */ | |
410 | FALSE, /* partial_inplace */ | |
411 | 0, /* src_mask */ | |
412 | 0x007fff80, /* dst_mask */ | |
413 | FALSE), /* pcrel_offset */ | |
414 | HOWTO (R_C6000_SBR_H16_W, /* type */ | |
415 | 18, /* rightshift */ | |
416 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
417 | 16, /* bitsize */ | |
418 | FALSE, /* pc_relative */ | |
419 | 7, /* bitpos */ | |
420 | complain_overflow_dont,/* complain_on_overflow */ | |
421 | bfd_elf_generic_reloc, /* special_function */ | |
422 | "R_C6000_SBR_H16_W", /* name */ | |
423 | FALSE, /* partial_inplace */ | |
424 | 0, /* src_mask */ | |
425 | 0x007fff80, /* dst_mask */ | |
426 | FALSE), /* pcrel_offset */ | |
427 | HOWTO (R_C6000_SBR_GOT_U15_W, /* type */ | |
428 | 2, /* rightshift */ | |
429 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
430 | 15, /* bitsize */ | |
431 | FALSE, /* pc_relative */ | |
432 | 8, /* bitpos */ | |
433 | complain_overflow_unsigned,/* complain_on_overflow */ | |
434 | bfd_elf_generic_reloc, /* special_function */ | |
435 | "R_C6000_SBR_GOT_U15_W",/* name */ | |
436 | FALSE, /* partial_inplace */ | |
437 | 0, /* src_mask */ | |
438 | 0x007fff00, /* dst_mask */ | |
439 | FALSE), /* pcrel_offset */ | |
440 | HOWTO (R_C6000_SBR_GOT_L16_W, /* type */ | |
441 | 2, /* rightshift */ | |
442 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
443 | 16, /* bitsize */ | |
444 | FALSE, /* pc_relative */ | |
445 | 7, /* bitpos */ | |
446 | complain_overflow_dont,/* complain_on_overflow */ | |
447 | bfd_elf_generic_reloc, /* special_function */ | |
448 | "R_C6000_SBR_GOT_L16_W",/* name */ | |
449 | FALSE, /* partial_inplace */ | |
450 | 0, /* src_mask */ | |
451 | 0x007fff80, /* dst_mask */ | |
452 | FALSE), /* pcrel_offset */ | |
453 | HOWTO (R_C6000_SBR_GOT_H16_W, /* type */ | |
454 | 18, /* rightshift */ | |
455 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
456 | 16, /* bitsize */ | |
457 | FALSE, /* pc_relative */ | |
458 | 7, /* bitpos */ | |
459 | complain_overflow_dont,/* complain_on_overflow */ | |
460 | bfd_elf_generic_reloc, /* special_function */ | |
461 | "R_C6000_SBR_GOT_H16_W",/* name */ | |
462 | FALSE, /* partial_inplace */ | |
463 | 0, /* src_mask */ | |
464 | 0x007fff80, /* dst_mask */ | |
465 | FALSE), /* pcrel_offset */ | |
466 | HOWTO (R_C6000_DSBT_INDEX, /* type */ | |
467 | 0, /* rightshift */ | |
468 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
469 | 15, /* bitsize */ | |
470 | FALSE, /* pc_relative */ | |
471 | 8, /* bitpos */ | |
472 | complain_overflow_unsigned,/* complain_on_overflow */ | |
473 | bfd_elf_generic_reloc, /* special_function */ | |
474 | "R_C6000_DSBT_INDEX", /* name */ | |
475 | FALSE, /* partial_inplace */ | |
476 | 0, /* src_mask */ | |
477 | 0x007fff00, /* dst_mask */ | |
478 | FALSE), /* pcrel_offset */ | |
479 | HOWTO (R_C6000_PREL31, /* type */ | |
480 | 1, /* rightshift */ | |
481 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
482 | 31, /* bitsize */ | |
44e87ece | 483 | TRUE, /* pc_relative */ |
41820509 JM |
484 | 0, /* bitpos */ |
485 | complain_overflow_dont,/* complain_on_overflow */ | |
486 | bfd_elf_generic_reloc, /* special_function */ | |
487 | "R_C6000_PREL31", /* name */ | |
488 | FALSE, /* partial_inplace */ | |
489 | 0, /* src_mask */ | |
490 | 0x7fffffff, /* dst_mask */ | |
44e87ece | 491 | TRUE), /* pcrel_offset */ |
41820509 JM |
492 | HOWTO (R_C6000_COPY, /* type */ |
493 | 0, /* rightshift */ | |
494 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
495 | 32, /* bitsize */ | |
496 | FALSE, /* pc_relative */ | |
497 | 0, /* bitpos */ | |
498 | complain_overflow_dont,/* complain_on_overflow */ | |
499 | bfd_elf_generic_reloc, /* special_function */ | |
500 | "R_C6000_COPY", /* name */ | |
501 | FALSE, /* partial_inplace */ | |
502 | 0, /* src_mask */ | |
503 | 0xffffffff, /* dst_mask */ | |
504 | FALSE), /* pcrel_offset */ | |
ac145307 BS |
505 | HOWTO (R_C6000_JUMP_SLOT, /* type */ |
506 | 0, /* rightshift */ | |
507 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
508 | 32, /* bitsize */ | |
509 | FALSE, /* pc_relative */ | |
510 | 0, /* bitpos */ | |
511 | complain_overflow_dont,/* complain_on_overflow */ | |
512 | bfd_elf_generic_reloc, /* special_function */ | |
513 | "R_C6000_JUMP_SLOT", /* name */ | |
514 | FALSE, /* partial_inplace */ | |
515 | 0, /* src_mask */ | |
516 | 0xffffffff, /* dst_mask */ | |
517 | FALSE), /* pcrel_offset */ | |
2fbb87f6 PB |
518 | HOWTO (R_C6000_EHTYPE, /* type */ |
519 | 0, /* rightshift */ | |
520 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
521 | 32, /* bitsize */ | |
522 | FALSE, /* pc_relative */ | |
523 | 0, /* bitpos */ | |
524 | complain_overflow_dont,/* complain_on_overflow */ | |
525 | bfd_elf_generic_reloc, /* special_function */ | |
526 | "R_C6000_EHTYPE", /* name */ | |
527 | FALSE, /* partial_inplace */ | |
528 | 0, /* src_mask */ | |
529 | 0xffffffff, /* dst_mask */ | |
530 | FALSE), /* pcrel_offset */ | |
4a732032 BS |
531 | HOWTO (R_C6000_PCR_H16, /* type */ |
532 | 16, /* rightshift */ | |
533 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
534 | 16, /* bitsize */ | |
535 | TRUE, /* pc_relative */ | |
536 | 7, /* bitpos */ | |
537 | complain_overflow_dont,/* complain_on_overflow */ | |
538 | bfd_elf_generic_reloc, /* special_function */ | |
539 | "R_C6000_PCR_H16", /* name */ | |
540 | FALSE, /* partial_inplace */ | |
541 | 0, /* src_mask */ | |
542 | 0x007fff80, /* dst_mask */ | |
543 | TRUE), /* pcrel_offset */ | |
544 | HOWTO (R_C6000_PCR_L16, /* type */ | |
545 | 0, /* rightshift */ | |
546 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
547 | 16, /* bitsize */ | |
548 | TRUE, /* pc_relative */ | |
549 | 7, /* bitpos */ | |
550 | complain_overflow_dont,/* complain_on_overflow */ | |
551 | bfd_elf_generic_reloc, /* special_function */ | |
552 | "R_C6000_PCR_L16", /* name */ | |
553 | FALSE, /* partial_inplace */ | |
554 | 0, /* src_mask */ | |
555 | 0x007fff80, /* dst_mask */ | |
556 | TRUE), /* pcrel_offset */ | |
41820509 JM |
557 | EMPTY_HOWTO (31), |
558 | EMPTY_HOWTO (32), | |
559 | EMPTY_HOWTO (33), | |
560 | EMPTY_HOWTO (34), | |
561 | EMPTY_HOWTO (35), | |
562 | EMPTY_HOWTO (36), | |
563 | EMPTY_HOWTO (37), | |
564 | EMPTY_HOWTO (38), | |
565 | EMPTY_HOWTO (39), | |
566 | EMPTY_HOWTO (40), | |
567 | EMPTY_HOWTO (41), | |
568 | EMPTY_HOWTO (42), | |
569 | EMPTY_HOWTO (43), | |
570 | EMPTY_HOWTO (44), | |
571 | EMPTY_HOWTO (45), | |
572 | EMPTY_HOWTO (46), | |
573 | EMPTY_HOWTO (47), | |
574 | EMPTY_HOWTO (48), | |
575 | EMPTY_HOWTO (49), | |
576 | EMPTY_HOWTO (50), | |
577 | EMPTY_HOWTO (51), | |
578 | EMPTY_HOWTO (52), | |
579 | EMPTY_HOWTO (53), | |
580 | EMPTY_HOWTO (54), | |
581 | EMPTY_HOWTO (55), | |
582 | EMPTY_HOWTO (56), | |
583 | EMPTY_HOWTO (57), | |
584 | EMPTY_HOWTO (58), | |
585 | EMPTY_HOWTO (59), | |
586 | EMPTY_HOWTO (60), | |
587 | EMPTY_HOWTO (61), | |
588 | EMPTY_HOWTO (62), | |
589 | EMPTY_HOWTO (63), | |
590 | EMPTY_HOWTO (64), | |
591 | EMPTY_HOWTO (65), | |
592 | EMPTY_HOWTO (66), | |
593 | EMPTY_HOWTO (67), | |
594 | EMPTY_HOWTO (68), | |
595 | EMPTY_HOWTO (69), | |
596 | EMPTY_HOWTO (70), | |
597 | EMPTY_HOWTO (71), | |
598 | EMPTY_HOWTO (72), | |
599 | EMPTY_HOWTO (73), | |
600 | EMPTY_HOWTO (74), | |
601 | EMPTY_HOWTO (75), | |
602 | EMPTY_HOWTO (76), | |
603 | EMPTY_HOWTO (77), | |
604 | EMPTY_HOWTO (78), | |
605 | EMPTY_HOWTO (79), | |
606 | EMPTY_HOWTO (80), | |
607 | EMPTY_HOWTO (81), | |
608 | EMPTY_HOWTO (82), | |
609 | EMPTY_HOWTO (83), | |
610 | EMPTY_HOWTO (84), | |
611 | EMPTY_HOWTO (85), | |
612 | EMPTY_HOWTO (86), | |
613 | EMPTY_HOWTO (87), | |
614 | EMPTY_HOWTO (88), | |
615 | EMPTY_HOWTO (89), | |
616 | EMPTY_HOWTO (90), | |
617 | EMPTY_HOWTO (91), | |
618 | EMPTY_HOWTO (92), | |
619 | EMPTY_HOWTO (93), | |
620 | EMPTY_HOWTO (94), | |
621 | EMPTY_HOWTO (95), | |
622 | EMPTY_HOWTO (96), | |
623 | EMPTY_HOWTO (97), | |
624 | EMPTY_HOWTO (98), | |
625 | EMPTY_HOWTO (99), | |
626 | EMPTY_HOWTO (100), | |
627 | EMPTY_HOWTO (101), | |
628 | EMPTY_HOWTO (102), | |
629 | EMPTY_HOWTO (103), | |
630 | EMPTY_HOWTO (104), | |
631 | EMPTY_HOWTO (105), | |
632 | EMPTY_HOWTO (106), | |
633 | EMPTY_HOWTO (107), | |
634 | EMPTY_HOWTO (108), | |
635 | EMPTY_HOWTO (109), | |
636 | EMPTY_HOWTO (110), | |
637 | EMPTY_HOWTO (111), | |
638 | EMPTY_HOWTO (112), | |
639 | EMPTY_HOWTO (113), | |
640 | EMPTY_HOWTO (114), | |
641 | EMPTY_HOWTO (115), | |
642 | EMPTY_HOWTO (116), | |
643 | EMPTY_HOWTO (117), | |
644 | EMPTY_HOWTO (118), | |
645 | EMPTY_HOWTO (119), | |
646 | EMPTY_HOWTO (120), | |
647 | EMPTY_HOWTO (121), | |
648 | EMPTY_HOWTO (122), | |
649 | EMPTY_HOWTO (123), | |
650 | EMPTY_HOWTO (124), | |
651 | EMPTY_HOWTO (125), | |
652 | EMPTY_HOWTO (126), | |
653 | EMPTY_HOWTO (127), | |
654 | EMPTY_HOWTO (128), | |
655 | EMPTY_HOWTO (129), | |
656 | EMPTY_HOWTO (130), | |
657 | EMPTY_HOWTO (131), | |
658 | EMPTY_HOWTO (132), | |
659 | EMPTY_HOWTO (133), | |
660 | EMPTY_HOWTO (134), | |
661 | EMPTY_HOWTO (135), | |
662 | EMPTY_HOWTO (136), | |
663 | EMPTY_HOWTO (137), | |
664 | EMPTY_HOWTO (138), | |
665 | EMPTY_HOWTO (139), | |
666 | EMPTY_HOWTO (140), | |
667 | EMPTY_HOWTO (141), | |
668 | EMPTY_HOWTO (142), | |
669 | EMPTY_HOWTO (143), | |
670 | EMPTY_HOWTO (144), | |
671 | EMPTY_HOWTO (145), | |
672 | EMPTY_HOWTO (146), | |
673 | EMPTY_HOWTO (147), | |
674 | EMPTY_HOWTO (148), | |
675 | EMPTY_HOWTO (149), | |
676 | EMPTY_HOWTO (150), | |
677 | EMPTY_HOWTO (151), | |
678 | EMPTY_HOWTO (152), | |
679 | EMPTY_HOWTO (153), | |
680 | EMPTY_HOWTO (154), | |
681 | EMPTY_HOWTO (155), | |
682 | EMPTY_HOWTO (156), | |
683 | EMPTY_HOWTO (157), | |
684 | EMPTY_HOWTO (158), | |
685 | EMPTY_HOWTO (159), | |
686 | EMPTY_HOWTO (160), | |
687 | EMPTY_HOWTO (161), | |
688 | EMPTY_HOWTO (162), | |
689 | EMPTY_HOWTO (163), | |
690 | EMPTY_HOWTO (164), | |
691 | EMPTY_HOWTO (165), | |
692 | EMPTY_HOWTO (166), | |
693 | EMPTY_HOWTO (167), | |
694 | EMPTY_HOWTO (168), | |
695 | EMPTY_HOWTO (169), | |
696 | EMPTY_HOWTO (170), | |
697 | EMPTY_HOWTO (171), | |
698 | EMPTY_HOWTO (172), | |
699 | EMPTY_HOWTO (173), | |
700 | EMPTY_HOWTO (174), | |
701 | EMPTY_HOWTO (175), | |
702 | EMPTY_HOWTO (176), | |
703 | EMPTY_HOWTO (177), | |
704 | EMPTY_HOWTO (178), | |
705 | EMPTY_HOWTO (179), | |
706 | EMPTY_HOWTO (180), | |
707 | EMPTY_HOWTO (181), | |
708 | EMPTY_HOWTO (182), | |
709 | EMPTY_HOWTO (183), | |
710 | EMPTY_HOWTO (184), | |
711 | EMPTY_HOWTO (185), | |
712 | EMPTY_HOWTO (186), | |
713 | EMPTY_HOWTO (187), | |
714 | EMPTY_HOWTO (188), | |
715 | EMPTY_HOWTO (189), | |
716 | EMPTY_HOWTO (190), | |
717 | EMPTY_HOWTO (191), | |
718 | EMPTY_HOWTO (192), | |
719 | EMPTY_HOWTO (193), | |
720 | EMPTY_HOWTO (194), | |
721 | EMPTY_HOWTO (195), | |
722 | EMPTY_HOWTO (196), | |
723 | EMPTY_HOWTO (197), | |
724 | EMPTY_HOWTO (198), | |
725 | EMPTY_HOWTO (199), | |
726 | EMPTY_HOWTO (200), | |
727 | EMPTY_HOWTO (201), | |
728 | EMPTY_HOWTO (202), | |
729 | EMPTY_HOWTO (203), | |
730 | EMPTY_HOWTO (204), | |
731 | EMPTY_HOWTO (205), | |
732 | EMPTY_HOWTO (206), | |
733 | EMPTY_HOWTO (207), | |
734 | EMPTY_HOWTO (208), | |
735 | EMPTY_HOWTO (209), | |
736 | EMPTY_HOWTO (210), | |
737 | EMPTY_HOWTO (211), | |
738 | EMPTY_HOWTO (212), | |
739 | EMPTY_HOWTO (213), | |
740 | EMPTY_HOWTO (214), | |
741 | EMPTY_HOWTO (215), | |
742 | EMPTY_HOWTO (216), | |
743 | EMPTY_HOWTO (217), | |
744 | EMPTY_HOWTO (218), | |
745 | EMPTY_HOWTO (219), | |
746 | EMPTY_HOWTO (220), | |
747 | EMPTY_HOWTO (221), | |
748 | EMPTY_HOWTO (222), | |
749 | EMPTY_HOWTO (223), | |
750 | EMPTY_HOWTO (224), | |
751 | EMPTY_HOWTO (225), | |
752 | EMPTY_HOWTO (226), | |
753 | EMPTY_HOWTO (227), | |
754 | EMPTY_HOWTO (228), | |
755 | EMPTY_HOWTO (229), | |
756 | EMPTY_HOWTO (230), | |
757 | EMPTY_HOWTO (231), | |
758 | EMPTY_HOWTO (232), | |
759 | EMPTY_HOWTO (233), | |
760 | EMPTY_HOWTO (234), | |
761 | EMPTY_HOWTO (235), | |
762 | EMPTY_HOWTO (236), | |
763 | EMPTY_HOWTO (237), | |
764 | EMPTY_HOWTO (238), | |
765 | EMPTY_HOWTO (239), | |
766 | EMPTY_HOWTO (240), | |
767 | EMPTY_HOWTO (241), | |
768 | EMPTY_HOWTO (242), | |
769 | EMPTY_HOWTO (243), | |
770 | EMPTY_HOWTO (244), | |
771 | EMPTY_HOWTO (245), | |
772 | EMPTY_HOWTO (246), | |
773 | EMPTY_HOWTO (247), | |
774 | EMPTY_HOWTO (248), | |
775 | EMPTY_HOWTO (249), | |
776 | EMPTY_HOWTO (250), | |
777 | EMPTY_HOWTO (251), | |
778 | EMPTY_HOWTO (252), | |
779 | HOWTO (R_C6000_ALIGN, /* type */ | |
780 | 0, /* rightshift */ | |
781 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
782 | 0, /* bitsize */ | |
783 | FALSE, /* pc_relative */ | |
784 | 0, /* bitpos */ | |
785 | complain_overflow_dont,/* complain_on_overflow */ | |
786 | bfd_elf_generic_reloc, /* special_function */ | |
787 | "R_C6000_ALIGN", /* name */ | |
788 | FALSE, /* partial_inplace */ | |
789 | 0, /* src_mask */ | |
790 | 0, /* dst_mask */ | |
791 | FALSE), /* pcrel_offset */ | |
792 | HOWTO (R_C6000_FPHEAD, /* type */ | |
793 | 0, /* rightshift */ | |
794 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
795 | 0, /* bitsize */ | |
796 | FALSE, /* pc_relative */ | |
797 | 0, /* bitpos */ | |
798 | complain_overflow_dont,/* complain_on_overflow */ | |
799 | bfd_elf_generic_reloc, /* special_function */ | |
800 | "R_C6000_FPHEAD", /* name */ | |
801 | FALSE, /* partial_inplace */ | |
802 | 0, /* src_mask */ | |
803 | 0, /* dst_mask */ | |
804 | FALSE), /* pcrel_offset */ | |
805 | HOWTO (R_C6000_NOCMP, /* type */ | |
806 | 0, /* rightshift */ | |
807 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
808 | 0, /* bitsize */ | |
809 | FALSE, /* pc_relative */ | |
810 | 0, /* bitpos */ | |
811 | complain_overflow_dont,/* complain_on_overflow */ | |
812 | bfd_elf_generic_reloc, /* special_function */ | |
813 | "R_C6000_NOCMP", /* name */ | |
814 | FALSE, /* partial_inplace */ | |
815 | 0, /* src_mask */ | |
816 | 0, /* dst_mask */ | |
817 | FALSE) /* pcrel_offset */ | |
818 | }; | |
819 | ||
820 | static reloc_howto_type elf32_tic6x_howto_table_rel[] = | |
821 | { | |
822 | HOWTO (R_C6000_NONE, /* type */ | |
823 | 0, /* rightshift */ | |
824 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
825 | 0, /* bitsize */ | |
826 | FALSE, /* pc_relative */ | |
827 | 0, /* bitpos */ | |
828 | complain_overflow_dont,/* complain_on_overflow */ | |
829 | bfd_elf_generic_reloc, /* special_function */ | |
830 | "R_C6000_NONE", /* name */ | |
831 | TRUE, /* partial_inplace */ | |
40b36596 JM |
832 | 0, /* src_mask */ |
833 | 0, /* dst_mask */ | |
834 | FALSE), /* pcrel_offset */ | |
835 | HOWTO (R_C6000_ABS32, /* type */ | |
836 | 0, /* rightshift */ | |
837 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
838 | 32, /* bitsize */ | |
839 | FALSE, /* pc_relative */ | |
840 | 0, /* bitpos */ | |
841 | complain_overflow_dont,/* complain_on_overflow */ | |
842 | bfd_elf_generic_reloc, /* special_function */ | |
843 | "R_C6000_ABS32", /* name */ | |
41820509 JM |
844 | TRUE, /* partial_inplace */ |
845 | 0xffffffff, /* src_mask */ | |
40b36596 JM |
846 | 0xffffffff, /* dst_mask */ |
847 | FALSE), /* pcrel_offset */ | |
848 | HOWTO (R_C6000_ABS16, /* type */ | |
849 | 0, /* rightshift */ | |
850 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
851 | 16, /* bitsize */ | |
852 | FALSE, /* pc_relative */ | |
853 | 0, /* bitpos */ | |
854 | complain_overflow_bitfield,/* complain_on_overflow */ | |
855 | bfd_elf_generic_reloc, /* special_function */ | |
856 | "R_C6000_ABS16", /* name */ | |
41820509 JM |
857 | TRUE, /* partial_inplace */ |
858 | 0x0000ffff, /* src_mask */ | |
40b36596 JM |
859 | 0x0000ffff, /* dst_mask */ |
860 | FALSE), /* pcrel_offset */ | |
861 | HOWTO (R_C6000_ABS8, /* type */ | |
862 | 0, /* rightshift */ | |
863 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
864 | 8, /* bitsize */ | |
865 | FALSE, /* pc_relative */ | |
866 | 0, /* bitpos */ | |
867 | complain_overflow_bitfield,/* complain_on_overflow */ | |
868 | bfd_elf_generic_reloc, /* special_function */ | |
869 | "R_C6000_ABS8", /* name */ | |
41820509 JM |
870 | TRUE, /* partial_inplace */ |
871 | 0x000000ff, /* src_mask */ | |
40b36596 JM |
872 | 0x000000ff, /* dst_mask */ |
873 | FALSE), /* pcrel_offset */ | |
874 | HOWTO (R_C6000_PCR_S21, /* type */ | |
875 | 2, /* rightshift */ | |
876 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
877 | 21, /* bitsize */ | |
878 | TRUE, /* pc_relative */ | |
879 | 7, /* bitpos */ | |
880 | complain_overflow_signed,/* complain_on_overflow */ | |
881 | bfd_elf_generic_reloc, /* special_function */ | |
882 | "R_C6000_PCR_S21", /* name */ | |
41820509 JM |
883 | TRUE, /* partial_inplace */ |
884 | 0x0fffff80, /* src_mask */ | |
40b36596 JM |
885 | 0x0fffff80, /* dst_mask */ |
886 | TRUE), /* pcrel_offset */ | |
887 | HOWTO (R_C6000_PCR_S12, /* type */ | |
888 | 2, /* rightshift */ | |
889 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
890 | 12, /* bitsize */ | |
891 | TRUE, /* pc_relative */ | |
892 | 16, /* bitpos */ | |
893 | complain_overflow_signed,/* complain_on_overflow */ | |
894 | bfd_elf_generic_reloc, /* special_function */ | |
895 | "R_C6000_PCR_S12", /* name */ | |
41820509 JM |
896 | TRUE, /* partial_inplace */ |
897 | 0x0fff0000, /* src_mask */ | |
40b36596 JM |
898 | 0x0fff0000, /* dst_mask */ |
899 | TRUE), /* pcrel_offset */ | |
900 | HOWTO (R_C6000_PCR_S10, /* type */ | |
901 | 2, /* rightshift */ | |
902 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
903 | 10, /* bitsize */ | |
904 | TRUE, /* pc_relative */ | |
905 | 13, /* bitpos */ | |
906 | complain_overflow_signed,/* complain_on_overflow */ | |
907 | bfd_elf_generic_reloc, /* special_function */ | |
908 | "R_C6000_PCR_S10", /* name */ | |
41820509 JM |
909 | TRUE, /* partial_inplace */ |
910 | 0x007fe000, /* src_mask */ | |
40b36596 JM |
911 | 0x007fe000, /* dst_mask */ |
912 | TRUE), /* pcrel_offset */ | |
913 | HOWTO (R_C6000_PCR_S7, /* type */ | |
914 | 2, /* rightshift */ | |
915 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
916 | 7, /* bitsize */ | |
917 | TRUE, /* pc_relative */ | |
918 | 16, /* bitpos */ | |
919 | complain_overflow_signed,/* complain_on_overflow */ | |
920 | bfd_elf_generic_reloc, /* special_function */ | |
921 | "R_C6000_PCR_S7", /* name */ | |
41820509 JM |
922 | TRUE, /* partial_inplace */ |
923 | 0x007f0000, /* src_mask */ | |
40b36596 JM |
924 | 0x007f0000, /* dst_mask */ |
925 | TRUE), /* pcrel_offset */ | |
926 | HOWTO (R_C6000_ABS_S16, /* type */ | |
927 | 0, /* rightshift */ | |
928 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
929 | 16, /* bitsize */ | |
930 | FALSE, /* pc_relative */ | |
931 | 7, /* bitpos */ | |
932 | complain_overflow_signed,/* complain_on_overflow */ | |
933 | bfd_elf_generic_reloc, /* special_function */ | |
934 | "R_C6000_ABS_S16", /* name */ | |
41820509 JM |
935 | TRUE, /* partial_inplace */ |
936 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
937 | 0x007fff80, /* dst_mask */ |
938 | FALSE), /* pcrel_offset */ | |
939 | HOWTO (R_C6000_ABS_L16, /* type */ | |
940 | 0, /* rightshift */ | |
941 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
942 | 16, /* bitsize */ | |
943 | FALSE, /* pc_relative */ | |
944 | 7, /* bitpos */ | |
945 | complain_overflow_dont,/* complain_on_overflow */ | |
946 | bfd_elf_generic_reloc, /* special_function */ | |
947 | "R_C6000_ABS_L16", /* name */ | |
41820509 JM |
948 | TRUE, /* partial_inplace */ |
949 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
950 | 0x007fff80, /* dst_mask */ |
951 | FALSE), /* pcrel_offset */ | |
41820509 | 952 | EMPTY_HOWTO (R_C6000_ABS_H16), |
40b36596 JM |
953 | HOWTO (R_C6000_SBR_U15_B, /* type */ |
954 | 0, /* rightshift */ | |
955 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
956 | 15, /* bitsize */ | |
957 | FALSE, /* pc_relative */ | |
958 | 8, /* bitpos */ | |
959 | complain_overflow_unsigned,/* complain_on_overflow */ | |
960 | bfd_elf_generic_reloc, /* special_function */ | |
961 | "R_C6000_SBR_U15_B", /* name */ | |
41820509 JM |
962 | TRUE, /* partial_inplace */ |
963 | 0x007fff00, /* src_mask */ | |
40b36596 JM |
964 | 0x007fff00, /* dst_mask */ |
965 | FALSE), /* pcrel_offset */ | |
966 | HOWTO (R_C6000_SBR_U15_H, /* type */ | |
967 | 1, /* rightshift */ | |
968 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
969 | 15, /* bitsize */ | |
970 | FALSE, /* pc_relative */ | |
971 | 8, /* bitpos */ | |
972 | complain_overflow_unsigned,/* complain_on_overflow */ | |
973 | bfd_elf_generic_reloc, /* special_function */ | |
974 | "R_C6000_SBR_U15_H", /* name */ | |
41820509 JM |
975 | TRUE, /* partial_inplace */ |
976 | 0x007fff00, /* src_mask */ | |
40b36596 JM |
977 | 0x007fff00, /* dst_mask */ |
978 | FALSE), /* pcrel_offset */ | |
979 | HOWTO (R_C6000_SBR_U15_W, /* type */ | |
980 | 2, /* rightshift */ | |
981 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
982 | 15, /* bitsize */ | |
983 | FALSE, /* pc_relative */ | |
984 | 8, /* bitpos */ | |
985 | complain_overflow_unsigned,/* complain_on_overflow */ | |
986 | bfd_elf_generic_reloc, /* special_function */ | |
987 | "R_C6000_SBR_U15_W", /* name */ | |
41820509 JM |
988 | TRUE, /* partial_inplace */ |
989 | 0x007fff00, /* src_mask */ | |
40b36596 JM |
990 | 0x007fff00, /* dst_mask */ |
991 | FALSE), /* pcrel_offset */ | |
992 | HOWTO (R_C6000_SBR_S16, /* type */ | |
993 | 0, /* rightshift */ | |
994 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
995 | 16, /* bitsize */ | |
996 | FALSE, /* pc_relative */ | |
997 | 7, /* bitpos */ | |
998 | complain_overflow_signed,/* complain_on_overflow */ | |
999 | bfd_elf_generic_reloc, /* special_function */ | |
1000 | "R_C6000_SBR_S16", /* name */ | |
41820509 JM |
1001 | TRUE, /* partial_inplace */ |
1002 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
1003 | 0x007fff80, /* dst_mask */ |
1004 | FALSE), /* pcrel_offset */ | |
1005 | HOWTO (R_C6000_SBR_L16_B, /* type */ | |
1006 | 0, /* rightshift */ | |
1007 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1008 | 16, /* bitsize */ | |
1009 | FALSE, /* pc_relative */ | |
1010 | 7, /* bitpos */ | |
1011 | complain_overflow_dont,/* complain_on_overflow */ | |
1012 | bfd_elf_generic_reloc, /* special_function */ | |
1013 | "R_C6000_SBR_L16_B", /* name */ | |
41820509 JM |
1014 | TRUE, /* partial_inplace */ |
1015 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
1016 | 0x007fff80, /* dst_mask */ |
1017 | FALSE), /* pcrel_offset */ | |
1018 | HOWTO (R_C6000_SBR_L16_H, /* type */ | |
1019 | 1, /* rightshift */ | |
1020 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1021 | 16, /* bitsize */ | |
1022 | FALSE, /* pc_relative */ | |
1023 | 7, /* bitpos */ | |
1024 | complain_overflow_dont,/* complain_on_overflow */ | |
1025 | bfd_elf_generic_reloc, /* special_function */ | |
1026 | "R_C6000_SBR_L16_H", /* name */ | |
41820509 JM |
1027 | TRUE, /* partial_inplace */ |
1028 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
1029 | 0x007fff80, /* dst_mask */ |
1030 | FALSE), /* pcrel_offset */ | |
1031 | HOWTO (R_C6000_SBR_L16_W, /* type */ | |
1032 | 2, /* rightshift */ | |
1033 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1034 | 16, /* bitsize */ | |
1035 | FALSE, /* pc_relative */ | |
1036 | 7, /* bitpos */ | |
1037 | complain_overflow_dont,/* complain_on_overflow */ | |
1038 | bfd_elf_generic_reloc, /* special_function */ | |
1039 | "R_C6000_SBR_L16_W", /* name */ | |
41820509 JM |
1040 | TRUE, /* partial_inplace */ |
1041 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
1042 | 0x007fff80, /* dst_mask */ |
1043 | FALSE), /* pcrel_offset */ | |
41820509 JM |
1044 | EMPTY_HOWTO (R_C6000_SBR_H16_B), |
1045 | EMPTY_HOWTO (R_C6000_SBR_H16_H), | |
1046 | EMPTY_HOWTO (R_C6000_SBR_H16_W), | |
40b36596 JM |
1047 | HOWTO (R_C6000_SBR_GOT_U15_W, /* type */ |
1048 | 2, /* rightshift */ | |
1049 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1050 | 15, /* bitsize */ | |
1051 | FALSE, /* pc_relative */ | |
1052 | 8, /* bitpos */ | |
1053 | complain_overflow_unsigned,/* complain_on_overflow */ | |
1054 | bfd_elf_generic_reloc, /* special_function */ | |
1055 | "R_C6000_SBR_GOT_U15_W",/* name */ | |
41820509 JM |
1056 | TRUE, /* partial_inplace */ |
1057 | 0x007fff00, /* src_mask */ | |
40b36596 JM |
1058 | 0x007fff00, /* dst_mask */ |
1059 | FALSE), /* pcrel_offset */ | |
1060 | HOWTO (R_C6000_SBR_GOT_L16_W, /* type */ | |
1061 | 2, /* rightshift */ | |
1062 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1063 | 16, /* bitsize */ | |
1064 | FALSE, /* pc_relative */ | |
1065 | 7, /* bitpos */ | |
1066 | complain_overflow_dont,/* complain_on_overflow */ | |
1067 | bfd_elf_generic_reloc, /* special_function */ | |
1068 | "R_C6000_SBR_GOT_L16_W",/* name */ | |
41820509 JM |
1069 | TRUE, /* partial_inplace */ |
1070 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
1071 | 0x007fff80, /* dst_mask */ |
1072 | FALSE), /* pcrel_offset */ | |
41820509 | 1073 | EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W), |
40b36596 JM |
1074 | HOWTO (R_C6000_DSBT_INDEX, /* type */ |
1075 | 0, /* rightshift */ | |
1076 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1077 | 15, /* bitsize */ | |
1078 | FALSE, /* pc_relative */ | |
1079 | 8, /* bitpos */ | |
1080 | complain_overflow_unsigned,/* complain_on_overflow */ | |
1081 | bfd_elf_generic_reloc, /* special_function */ | |
1082 | "R_C6000_DSBT_INDEX", /* name */ | |
41820509 | 1083 | TRUE, /* partial_inplace */ |
40b36596 JM |
1084 | 0, /* src_mask */ |
1085 | 0x007fff00, /* dst_mask */ | |
1086 | FALSE), /* pcrel_offset */ | |
1087 | HOWTO (R_C6000_PREL31, /* type */ | |
1088 | 1, /* rightshift */ | |
1089 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1090 | 31, /* bitsize */ | |
44e87ece | 1091 | TRUE, /* pc_relative */ |
40b36596 JM |
1092 | 0, /* bitpos */ |
1093 | complain_overflow_dont,/* complain_on_overflow */ | |
1094 | bfd_elf_generic_reloc, /* special_function */ | |
1095 | "R_C6000_PREL31", /* name */ | |
41820509 | 1096 | TRUE, /* partial_inplace */ |
40b36596 JM |
1097 | 0, /* src_mask */ |
1098 | 0x7fffffff, /* dst_mask */ | |
44e87ece | 1099 | TRUE), /* pcrel_offset */ |
40b36596 JM |
1100 | HOWTO (R_C6000_COPY, /* type */ |
1101 | 0, /* rightshift */ | |
1102 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1103 | 32, /* bitsize */ | |
1104 | FALSE, /* pc_relative */ | |
1105 | 0, /* bitpos */ | |
1106 | complain_overflow_dont,/* complain_on_overflow */ | |
1107 | bfd_elf_generic_reloc, /* special_function */ | |
1108 | "R_C6000_COPY", /* name */ | |
41820509 | 1109 | TRUE, /* partial_inplace */ |
40b36596 JM |
1110 | 0, /* src_mask */ |
1111 | 0xffffffff, /* dst_mask */ | |
1112 | FALSE), /* pcrel_offset */ | |
ac145307 BS |
1113 | HOWTO (R_C6000_JUMP_SLOT, /* type */ |
1114 | 0, /* rightshift */ | |
1115 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1116 | 32, /* bitsize */ | |
1117 | FALSE, /* pc_relative */ | |
1118 | 0, /* bitpos */ | |
1119 | complain_overflow_dont,/* complain_on_overflow */ | |
1120 | bfd_elf_generic_reloc, /* special_function */ | |
1121 | "R_C6000_JUMP_SLOT", /* name */ | |
1122 | FALSE, /* partial_inplace */ | |
1123 | 0, /* src_mask */ | |
1124 | 0xffffffff, /* dst_mask */ | |
1125 | FALSE), /* pcrel_offset */ | |
2fbb87f6 PB |
1126 | HOWTO (R_C6000_EHTYPE, /* type */ |
1127 | 0, /* rightshift */ | |
1128 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1129 | 32, /* bitsize */ | |
1130 | FALSE, /* pc_relative */ | |
1131 | 0, /* bitpos */ | |
1132 | complain_overflow_dont,/* complain_on_overflow */ | |
1133 | bfd_elf_generic_reloc, /* special_function */ | |
1134 | "R_C6000_EHTYPE", /* name */ | |
1135 | FALSE, /* partial_inplace */ | |
1136 | 0, /* src_mask */ | |
1137 | 0xffffffff, /* dst_mask */ | |
1138 | FALSE), /* pcrel_offset */ | |
4a732032 BS |
1139 | EMPTY_HOWTO (R_C6000_PCR_H16), |
1140 | EMPTY_HOWTO (R_C6000_PCR_L16), | |
40b36596 JM |
1141 | EMPTY_HOWTO (31), |
1142 | EMPTY_HOWTO (32), | |
1143 | EMPTY_HOWTO (33), | |
1144 | EMPTY_HOWTO (34), | |
1145 | EMPTY_HOWTO (35), | |
1146 | EMPTY_HOWTO (36), | |
1147 | EMPTY_HOWTO (37), | |
1148 | EMPTY_HOWTO (38), | |
1149 | EMPTY_HOWTO (39), | |
1150 | EMPTY_HOWTO (40), | |
1151 | EMPTY_HOWTO (41), | |
1152 | EMPTY_HOWTO (42), | |
1153 | EMPTY_HOWTO (43), | |
1154 | EMPTY_HOWTO (44), | |
1155 | EMPTY_HOWTO (45), | |
1156 | EMPTY_HOWTO (46), | |
1157 | EMPTY_HOWTO (47), | |
1158 | EMPTY_HOWTO (48), | |
1159 | EMPTY_HOWTO (49), | |
1160 | EMPTY_HOWTO (50), | |
1161 | EMPTY_HOWTO (51), | |
1162 | EMPTY_HOWTO (52), | |
1163 | EMPTY_HOWTO (53), | |
1164 | EMPTY_HOWTO (54), | |
1165 | EMPTY_HOWTO (55), | |
1166 | EMPTY_HOWTO (56), | |
1167 | EMPTY_HOWTO (57), | |
1168 | EMPTY_HOWTO (58), | |
1169 | EMPTY_HOWTO (59), | |
1170 | EMPTY_HOWTO (60), | |
1171 | EMPTY_HOWTO (61), | |
1172 | EMPTY_HOWTO (62), | |
1173 | EMPTY_HOWTO (63), | |
1174 | EMPTY_HOWTO (64), | |
1175 | EMPTY_HOWTO (65), | |
1176 | EMPTY_HOWTO (66), | |
1177 | EMPTY_HOWTO (67), | |
1178 | EMPTY_HOWTO (68), | |
1179 | EMPTY_HOWTO (69), | |
1180 | EMPTY_HOWTO (70), | |
1181 | EMPTY_HOWTO (71), | |
1182 | EMPTY_HOWTO (72), | |
1183 | EMPTY_HOWTO (73), | |
1184 | EMPTY_HOWTO (74), | |
1185 | EMPTY_HOWTO (75), | |
1186 | EMPTY_HOWTO (76), | |
1187 | EMPTY_HOWTO (77), | |
1188 | EMPTY_HOWTO (78), | |
1189 | EMPTY_HOWTO (79), | |
1190 | EMPTY_HOWTO (80), | |
1191 | EMPTY_HOWTO (81), | |
1192 | EMPTY_HOWTO (82), | |
1193 | EMPTY_HOWTO (83), | |
1194 | EMPTY_HOWTO (84), | |
1195 | EMPTY_HOWTO (85), | |
1196 | EMPTY_HOWTO (86), | |
1197 | EMPTY_HOWTO (87), | |
1198 | EMPTY_HOWTO (88), | |
1199 | EMPTY_HOWTO (89), | |
1200 | EMPTY_HOWTO (90), | |
1201 | EMPTY_HOWTO (91), | |
1202 | EMPTY_HOWTO (92), | |
1203 | EMPTY_HOWTO (93), | |
1204 | EMPTY_HOWTO (94), | |
1205 | EMPTY_HOWTO (95), | |
1206 | EMPTY_HOWTO (96), | |
1207 | EMPTY_HOWTO (97), | |
1208 | EMPTY_HOWTO (98), | |
1209 | EMPTY_HOWTO (99), | |
1210 | EMPTY_HOWTO (100), | |
1211 | EMPTY_HOWTO (101), | |
1212 | EMPTY_HOWTO (102), | |
1213 | EMPTY_HOWTO (103), | |
1214 | EMPTY_HOWTO (104), | |
1215 | EMPTY_HOWTO (105), | |
1216 | EMPTY_HOWTO (106), | |
1217 | EMPTY_HOWTO (107), | |
1218 | EMPTY_HOWTO (108), | |
1219 | EMPTY_HOWTO (109), | |
1220 | EMPTY_HOWTO (110), | |
1221 | EMPTY_HOWTO (111), | |
1222 | EMPTY_HOWTO (112), | |
1223 | EMPTY_HOWTO (113), | |
1224 | EMPTY_HOWTO (114), | |
1225 | EMPTY_HOWTO (115), | |
1226 | EMPTY_HOWTO (116), | |
1227 | EMPTY_HOWTO (117), | |
1228 | EMPTY_HOWTO (118), | |
1229 | EMPTY_HOWTO (119), | |
1230 | EMPTY_HOWTO (120), | |
1231 | EMPTY_HOWTO (121), | |
1232 | EMPTY_HOWTO (122), | |
1233 | EMPTY_HOWTO (123), | |
1234 | EMPTY_HOWTO (124), | |
1235 | EMPTY_HOWTO (125), | |
1236 | EMPTY_HOWTO (126), | |
1237 | EMPTY_HOWTO (127), | |
1238 | EMPTY_HOWTO (128), | |
1239 | EMPTY_HOWTO (129), | |
1240 | EMPTY_HOWTO (130), | |
1241 | EMPTY_HOWTO (131), | |
1242 | EMPTY_HOWTO (132), | |
1243 | EMPTY_HOWTO (133), | |
1244 | EMPTY_HOWTO (134), | |
1245 | EMPTY_HOWTO (135), | |
1246 | EMPTY_HOWTO (136), | |
1247 | EMPTY_HOWTO (137), | |
1248 | EMPTY_HOWTO (138), | |
1249 | EMPTY_HOWTO (139), | |
1250 | EMPTY_HOWTO (140), | |
1251 | EMPTY_HOWTO (141), | |
1252 | EMPTY_HOWTO (142), | |
1253 | EMPTY_HOWTO (143), | |
1254 | EMPTY_HOWTO (144), | |
1255 | EMPTY_HOWTO (145), | |
1256 | EMPTY_HOWTO (146), | |
1257 | EMPTY_HOWTO (147), | |
1258 | EMPTY_HOWTO (148), | |
1259 | EMPTY_HOWTO (149), | |
1260 | EMPTY_HOWTO (150), | |
1261 | EMPTY_HOWTO (151), | |
1262 | EMPTY_HOWTO (152), | |
1263 | EMPTY_HOWTO (153), | |
1264 | EMPTY_HOWTO (154), | |
1265 | EMPTY_HOWTO (155), | |
1266 | EMPTY_HOWTO (156), | |
1267 | EMPTY_HOWTO (157), | |
1268 | EMPTY_HOWTO (158), | |
1269 | EMPTY_HOWTO (159), | |
1270 | EMPTY_HOWTO (160), | |
1271 | EMPTY_HOWTO (161), | |
1272 | EMPTY_HOWTO (162), | |
1273 | EMPTY_HOWTO (163), | |
1274 | EMPTY_HOWTO (164), | |
1275 | EMPTY_HOWTO (165), | |
1276 | EMPTY_HOWTO (166), | |
1277 | EMPTY_HOWTO (167), | |
1278 | EMPTY_HOWTO (168), | |
1279 | EMPTY_HOWTO (169), | |
1280 | EMPTY_HOWTO (170), | |
1281 | EMPTY_HOWTO (171), | |
1282 | EMPTY_HOWTO (172), | |
1283 | EMPTY_HOWTO (173), | |
1284 | EMPTY_HOWTO (174), | |
1285 | EMPTY_HOWTO (175), | |
1286 | EMPTY_HOWTO (176), | |
1287 | EMPTY_HOWTO (177), | |
1288 | EMPTY_HOWTO (178), | |
1289 | EMPTY_HOWTO (179), | |
1290 | EMPTY_HOWTO (180), | |
1291 | EMPTY_HOWTO (181), | |
1292 | EMPTY_HOWTO (182), | |
1293 | EMPTY_HOWTO (183), | |
1294 | EMPTY_HOWTO (184), | |
1295 | EMPTY_HOWTO (185), | |
1296 | EMPTY_HOWTO (186), | |
1297 | EMPTY_HOWTO (187), | |
1298 | EMPTY_HOWTO (188), | |
1299 | EMPTY_HOWTO (189), | |
1300 | EMPTY_HOWTO (190), | |
1301 | EMPTY_HOWTO (191), | |
1302 | EMPTY_HOWTO (192), | |
1303 | EMPTY_HOWTO (193), | |
1304 | EMPTY_HOWTO (194), | |
1305 | EMPTY_HOWTO (195), | |
1306 | EMPTY_HOWTO (196), | |
1307 | EMPTY_HOWTO (197), | |
1308 | EMPTY_HOWTO (198), | |
1309 | EMPTY_HOWTO (199), | |
1310 | EMPTY_HOWTO (200), | |
1311 | EMPTY_HOWTO (201), | |
1312 | EMPTY_HOWTO (202), | |
1313 | EMPTY_HOWTO (203), | |
1314 | EMPTY_HOWTO (204), | |
1315 | EMPTY_HOWTO (205), | |
1316 | EMPTY_HOWTO (206), | |
1317 | EMPTY_HOWTO (207), | |
1318 | EMPTY_HOWTO (208), | |
1319 | EMPTY_HOWTO (209), | |
1320 | EMPTY_HOWTO (210), | |
1321 | EMPTY_HOWTO (211), | |
1322 | EMPTY_HOWTO (212), | |
1323 | EMPTY_HOWTO (213), | |
1324 | EMPTY_HOWTO (214), | |
1325 | EMPTY_HOWTO (215), | |
1326 | EMPTY_HOWTO (216), | |
1327 | EMPTY_HOWTO (217), | |
1328 | EMPTY_HOWTO (218), | |
1329 | EMPTY_HOWTO (219), | |
1330 | EMPTY_HOWTO (220), | |
1331 | EMPTY_HOWTO (221), | |
1332 | EMPTY_HOWTO (222), | |
1333 | EMPTY_HOWTO (223), | |
1334 | EMPTY_HOWTO (224), | |
1335 | EMPTY_HOWTO (225), | |
1336 | EMPTY_HOWTO (226), | |
1337 | EMPTY_HOWTO (227), | |
1338 | EMPTY_HOWTO (228), | |
1339 | EMPTY_HOWTO (229), | |
1340 | EMPTY_HOWTO (230), | |
1341 | EMPTY_HOWTO (231), | |
1342 | EMPTY_HOWTO (232), | |
1343 | EMPTY_HOWTO (233), | |
1344 | EMPTY_HOWTO (234), | |
1345 | EMPTY_HOWTO (235), | |
1346 | EMPTY_HOWTO (236), | |
1347 | EMPTY_HOWTO (237), | |
1348 | EMPTY_HOWTO (238), | |
1349 | EMPTY_HOWTO (239), | |
1350 | EMPTY_HOWTO (240), | |
1351 | EMPTY_HOWTO (241), | |
1352 | EMPTY_HOWTO (242), | |
1353 | EMPTY_HOWTO (243), | |
1354 | EMPTY_HOWTO (244), | |
1355 | EMPTY_HOWTO (245), | |
1356 | EMPTY_HOWTO (246), | |
1357 | EMPTY_HOWTO (247), | |
1358 | EMPTY_HOWTO (248), | |
1359 | EMPTY_HOWTO (249), | |
1360 | EMPTY_HOWTO (250), | |
1361 | EMPTY_HOWTO (251), | |
1362 | EMPTY_HOWTO (252), | |
1363 | HOWTO (R_C6000_ALIGN, /* type */ | |
1364 | 0, /* rightshift */ | |
1365 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1366 | 0, /* bitsize */ | |
1367 | FALSE, /* pc_relative */ | |
1368 | 0, /* bitpos */ | |
1369 | complain_overflow_dont,/* complain_on_overflow */ | |
1370 | bfd_elf_generic_reloc, /* special_function */ | |
1371 | "R_C6000_ALIGN", /* name */ | |
41820509 | 1372 | TRUE, /* partial_inplace */ |
40b36596 JM |
1373 | 0, /* src_mask */ |
1374 | 0, /* dst_mask */ | |
1375 | FALSE), /* pcrel_offset */ | |
1376 | HOWTO (R_C6000_FPHEAD, /* type */ | |
1377 | 0, /* rightshift */ | |
1378 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1379 | 0, /* bitsize */ | |
1380 | FALSE, /* pc_relative */ | |
1381 | 0, /* bitpos */ | |
1382 | complain_overflow_dont,/* complain_on_overflow */ | |
1383 | bfd_elf_generic_reloc, /* special_function */ | |
1384 | "R_C6000_FPHEAD", /* name */ | |
41820509 | 1385 | TRUE, /* partial_inplace */ |
40b36596 JM |
1386 | 0, /* src_mask */ |
1387 | 0, /* dst_mask */ | |
1388 | FALSE), /* pcrel_offset */ | |
1389 | HOWTO (R_C6000_NOCMP, /* type */ | |
1390 | 0, /* rightshift */ | |
1391 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1392 | 0, /* bitsize */ | |
1393 | FALSE, /* pc_relative */ | |
1394 | 0, /* bitpos */ | |
1395 | complain_overflow_dont,/* complain_on_overflow */ | |
1396 | bfd_elf_generic_reloc, /* special_function */ | |
1397 | "R_C6000_NOCMP", /* name */ | |
41820509 | 1398 | TRUE, /* partial_inplace */ |
40b36596 JM |
1399 | 0, /* src_mask */ |
1400 | 0, /* dst_mask */ | |
1401 | FALSE) /* pcrel_offset */ | |
1402 | }; | |
1403 | ||
1404 | /* Map BFD relocations to ELF relocations. */ | |
1405 | ||
1406 | typedef struct | |
1407 | { | |
1408 | bfd_reloc_code_real_type bfd_reloc_val; | |
1409 | enum elf_tic6x_reloc_type elf_reloc_val; | |
1410 | } tic6x_reloc_map; | |
1411 | ||
1412 | static const tic6x_reloc_map elf32_tic6x_reloc_map[] = | |
1413 | { | |
1414 | { BFD_RELOC_NONE, R_C6000_NONE }, | |
1415 | { BFD_RELOC_32, R_C6000_ABS32 }, | |
1416 | { BFD_RELOC_16, R_C6000_ABS16 }, | |
1417 | { BFD_RELOC_8, R_C6000_ABS8 }, | |
1418 | { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 }, | |
1419 | { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 }, | |
1420 | { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 }, | |
1421 | { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 }, | |
1422 | { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 }, | |
1423 | { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 }, | |
1424 | { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 }, | |
1425 | { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B }, | |
1426 | { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H }, | |
1427 | { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W }, | |
1428 | { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 }, | |
1429 | { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B }, | |
1430 | { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H }, | |
1431 | { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W }, | |
1432 | { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B }, | |
1433 | { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H }, | |
1434 | { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W }, | |
1435 | { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W }, | |
1436 | { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W }, | |
1437 | { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W }, | |
1438 | { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX }, | |
1439 | { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 }, | |
1440 | { BFD_RELOC_C6000_COPY, R_C6000_COPY }, | |
ac145307 BS |
1441 | { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT }, |
1442 | { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE }, | |
1443 | { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 }, | |
1444 | { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 }, | |
40b36596 JM |
1445 | { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN }, |
1446 | { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD }, | |
1447 | { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP } | |
1448 | }; | |
1449 | ||
1450 | static reloc_howto_type * | |
41820509 | 1451 | elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) |
40b36596 JM |
1452 | { |
1453 | unsigned int i; | |
1454 | ||
1455 | for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++) | |
1456 | if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code) | |
41820509 JM |
1457 | { |
1458 | enum elf_tic6x_reloc_type elf_reloc_val; | |
1459 | reloc_howto_type *howto; | |
1460 | ||
1461 | elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val; | |
1462 | if (elf32_tic6x_tdata (abfd)->use_rela_p) | |
1463 | howto = &elf32_tic6x_howto_table[elf_reloc_val]; | |
1464 | else | |
1465 | howto = &elf32_tic6x_howto_table_rel[elf_reloc_val]; | |
1466 | ||
1467 | /* Some relocations are RELA-only; do not return them for | |
1468 | REL. */ | |
1469 | if (howto->name == NULL) | |
1470 | howto = NULL; | |
1471 | ||
1472 | return howto; | |
1473 | } | |
40b36596 JM |
1474 | |
1475 | return NULL; | |
1476 | } | |
1477 | ||
1478 | static reloc_howto_type * | |
41820509 | 1479 | elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name) |
40b36596 | 1480 | { |
41820509 JM |
1481 | if (elf32_tic6x_tdata (abfd)->use_rela_p) |
1482 | { | |
1483 | unsigned int i; | |
1484 | ||
1485 | for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++) | |
1486 | if (elf32_tic6x_howto_table[i].name != NULL | |
1487 | && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0) | |
1488 | return &elf32_tic6x_howto_table[i]; | |
1489 | } | |
1490 | else | |
1491 | { | |
1492 | unsigned int i; | |
40b36596 | 1493 | |
41820509 JM |
1494 | for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++) |
1495 | if (elf32_tic6x_howto_table_rel[i].name != NULL | |
1496 | && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0) | |
1497 | return &elf32_tic6x_howto_table_rel[i]; | |
1498 | } | |
40b36596 JM |
1499 | |
1500 | return NULL; | |
1501 | } | |
1502 | ||
1503 | static void | |
1504 | elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, | |
1505 | Elf_Internal_Rela *elf_reloc) | |
1506 | { | |
1507 | unsigned int r_type; | |
1508 | ||
1509 | r_type = ELF32_R_TYPE (elf_reloc->r_info); | |
1510 | if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table)) | |
1511 | bfd_reloc->howto = NULL; | |
1512 | else | |
1513 | bfd_reloc->howto = &elf32_tic6x_howto_table[r_type]; | |
1514 | } | |
1515 | ||
41820509 JM |
1516 | static void |
1517 | elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, | |
1518 | Elf_Internal_Rela *elf_reloc) | |
1519 | { | |
1520 | unsigned int r_type; | |
1521 | ||
1522 | r_type = ELF32_R_TYPE (elf_reloc->r_info); | |
1523 | if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel)) | |
1524 | bfd_reloc->howto = NULL; | |
1525 | else | |
1526 | bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type]; | |
1527 | } | |
1528 | ||
1529 | void | |
1530 | elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p) | |
1531 | { | |
1532 | elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p; | |
1533 | } | |
1534 | ||
ac145307 BS |
1535 | /* Create an entry in a C6X ELF linker hash table. */ |
1536 | ||
1537 | static struct bfd_hash_entry * | |
1538 | elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry *entry, | |
1539 | struct bfd_hash_table *table, | |
1540 | const char *string) | |
1541 | { | |
1542 | /* Allocate the structure if it has not already been allocated by a | |
1543 | subclass. */ | |
1544 | if (entry == NULL) | |
1545 | { | |
1546 | entry = bfd_hash_allocate (table, | |
1547 | sizeof (struct elf32_tic6x_link_hash_entry)); | |
1548 | if (entry == NULL) | |
1549 | return entry; | |
1550 | } | |
1551 | ||
1552 | /* Call the allocation method of the superclass. */ | |
1553 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
1554 | if (entry != NULL) | |
1555 | { | |
1556 | struct elf32_tic6x_link_hash_entry *eh; | |
1557 | ||
1558 | eh = (struct elf32_tic6x_link_hash_entry *) entry; | |
1559 | eh->dyn_relocs = NULL; | |
1560 | } | |
1561 | ||
1562 | return entry; | |
1563 | } | |
1564 | ||
1565 | /* Create a C6X ELF linker hash table. */ | |
1566 | ||
1567 | static struct bfd_link_hash_table * | |
1568 | elf32_tic6x_link_hash_table_create (bfd *abfd) | |
1569 | { | |
1570 | struct elf32_tic6x_link_hash_table *ret; | |
1571 | bfd_size_type amt = sizeof (struct elf32_tic6x_link_hash_table); | |
1572 | ||
7bf52ea2 | 1573 | ret = bfd_zmalloc (amt); |
ac145307 BS |
1574 | if (ret == NULL) |
1575 | return NULL; | |
1576 | ||
1577 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, | |
1578 | elf32_tic6x_link_hash_newfunc, | |
1579 | sizeof (struct elf32_tic6x_link_hash_entry), | |
1580 | TIC6X_ELF_DATA)) | |
1581 | { | |
1582 | free (ret); | |
1583 | return NULL; | |
1584 | } | |
1585 | ||
ac145307 BS |
1586 | ret->obfd = abfd; |
1587 | ret->elf.is_relocatable_executable = 1; | |
1588 | ||
1589 | return &ret->elf.root; | |
1590 | } | |
1591 | ||
c6a8f6e0 BS |
1592 | static bfd_boolean |
1593 | elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info) | |
1594 | { | |
1595 | if (info->shared) | |
1596 | { | |
1597 | obj_attribute *out_attr; | |
1598 | out_attr = elf_known_obj_attributes_proc (abfd); | |
1599 | if (out_attr[Tag_ABI_PIC].i == 0) | |
1600 | { | |
1601 | _bfd_error_handler (_("warning: generating a shared library " | |
1602 | "containing non-PIC code")); | |
1603 | } | |
1604 | if (out_attr[Tag_ABI_PID].i == 0) | |
1605 | { | |
1606 | _bfd_error_handler (_("warning: generating a shared library " | |
1607 | "containing non-PID code")); | |
1608 | } | |
1609 | } | |
1610 | /* Invoke the regular ELF backend linker to do all the work. */ | |
1611 | if (!bfd_elf_final_link (abfd, info)) | |
1612 | return FALSE; | |
1613 | ||
1614 | return TRUE; | |
1615 | } | |
1616 | ||
ac145307 BS |
1617 | /* Called to pass PARAMS to the backend. We store them in the hash table |
1618 | associated with INFO. */ | |
1619 | ||
1620 | void | |
1621 | elf32_tic6x_setup (struct bfd_link_info *info, | |
1622 | struct elf32_tic6x_params *params) | |
1623 | { | |
1624 | struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info); | |
1625 | htab->params = *params; | |
1626 | } | |
1627 | ||
1628 | /* Determine if we're dealing with a DSBT object. */ | |
1629 | ||
1630 | static bfd_boolean | |
1631 | elf32_tic6x_using_dsbt (bfd *abfd) | |
1632 | { | |
1633 | return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC, | |
1634 | Tag_ABI_DSBT); | |
1635 | } | |
1636 | ||
1637 | /* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt | |
1638 | sections in DYNOBJ, and set up shortcuts to them in our hash | |
1639 | table. */ | |
1640 | ||
1641 | static bfd_boolean | |
1642 | elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) | |
1643 | { | |
1644 | struct elf32_tic6x_link_hash_table *htab; | |
1645 | flagword flags; | |
1646 | ||
1647 | htab = elf32_tic6x_hash_table (info); | |
1648 | if (htab == NULL) | |
1649 | return FALSE; | |
1650 | ||
1651 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
1652 | return FALSE; | |
1653 | ||
1654 | /* Create .dsbt */ | |
1655 | flags = (SEC_ALLOC | SEC_LOAD | |
1656 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1657 | htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt", | |
1658 | flags); | |
1659 | if (htab->dsbt == NULL | |
1660 | || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2) | |
1661 | || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5)) | |
1662 | return FALSE; | |
1663 | ||
3d4d4302 | 1664 | htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss"); |
ac145307 | 1665 | if (!info->shared) |
3d4d4302 | 1666 | htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
ac145307 BS |
1667 | |
1668 | if (!htab->sdynbss | |
1669 | || (!info->shared && !htab->srelbss)) | |
1670 | abort (); | |
1671 | ||
1672 | return TRUE; | |
1673 | } | |
1674 | ||
41820509 JM |
1675 | static bfd_boolean |
1676 | elf32_tic6x_mkobject (bfd *abfd) | |
1677 | { | |
1678 | bfd_boolean ret; | |
1679 | ||
1680 | ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata), | |
1681 | TIC6X_ELF_DATA); | |
1682 | if (ret) | |
1683 | elf32_tic6x_set_use_rela_p (abfd, TRUE); | |
1684 | return ret; | |
1685 | } | |
1686 | ||
ac145307 BS |
1687 | /* Install relocation RELA into section SRELA, incrementing its |
1688 | reloc_count. */ | |
1689 | ||
1690 | static void | |
1691 | elf32_tic6x_install_rela (bfd *output_bfd, asection *srela, | |
1692 | Elf_Internal_Rela *rela) | |
1693 | { | |
1694 | bfd_byte *loc; | |
1695 | bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela); | |
1696 | loc = srela->contents + off; | |
1697 | BFD_ASSERT (off < srela->size); | |
1698 | bfd_elf32_swap_reloca_out (output_bfd, rela, loc); | |
1699 | } | |
1700 | ||
1701 | /* Create a dynamic reloc against the GOT at offset OFFSET. The contents | |
1702 | of the GOT at this offset have been initialized with the relocation. */ | |
1703 | ||
1704 | static void | |
1705 | elf32_tic6x_make_got_dynreloc (bfd *output_bfd, | |
1706 | struct elf32_tic6x_link_hash_table *htab, | |
1707 | asection *sym_sec, bfd_vma offset) | |
1708 | { | |
1709 | asection *sgot = htab->elf.sgot; | |
1710 | Elf_Internal_Rela outrel; | |
1711 | int dynindx; | |
1712 | ||
1713 | outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset; | |
1714 | outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset); | |
1715 | if (sym_sec && sym_sec->output_section | |
1716 | && ! bfd_is_abs_section (sym_sec->output_section) | |
1717 | && ! bfd_is_und_section (sym_sec->output_section)) | |
1718 | { | |
1719 | dynindx = elf_section_data (sym_sec->output_section)->dynindx; | |
1720 | outrel.r_addend -= sym_sec->output_section->vma; | |
1721 | } | |
1722 | else | |
1723 | { | |
1724 | dynindx = 0; | |
1725 | } | |
1726 | outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32); | |
1727 | elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel); | |
1728 | } | |
1729 | ||
1730 | /* Finish up dynamic symbol handling. We set the contents of various | |
1731 | dynamic sections here. */ | |
1732 | ||
1733 | static bfd_boolean | |
1734 | elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd, | |
1735 | struct bfd_link_info *info, | |
1736 | struct elf_link_hash_entry *h, | |
1737 | Elf_Internal_Sym * sym) | |
1738 | { | |
1739 | bfd *dynobj; | |
1740 | struct elf32_tic6x_link_hash_table *htab; | |
1741 | ||
1742 | htab = elf32_tic6x_hash_table (info); | |
1743 | dynobj = htab->elf.dynobj; | |
1744 | ||
1745 | if (h->plt.offset != (bfd_vma) -1) | |
1746 | { | |
1747 | bfd_vma plt_index; | |
1748 | bfd_vma got_section_offset, got_dp_offset, rela_offset; | |
1749 | Elf_Internal_Rela rela; | |
1750 | bfd_byte *loc; | |
1751 | asection *plt, *gotplt, *relplt; | |
1752 | const struct elf_backend_data *bed; | |
1753 | ||
1754 | bed = get_elf_backend_data (output_bfd); | |
1755 | ||
1756 | BFD_ASSERT (htab->elf.splt != NULL); | |
1757 | plt = htab->elf.splt; | |
1758 | gotplt = htab->elf.sgotplt; | |
1759 | relplt = htab->elf.srelplt; | |
1760 | ||
1761 | /* This symbol has an entry in the procedure linkage table. Set | |
1762 | it up. */ | |
1763 | ||
1764 | if ((h->dynindx == -1 | |
1765 | && !((h->forced_local || info->executable) | |
1766 | && h->def_regular | |
1767 | && h->type == STT_GNU_IFUNC)) | |
1768 | || plt == NULL | |
1769 | || gotplt == NULL | |
1770 | || relplt == NULL) | |
1771 | abort (); | |
1772 | ||
1773 | /* Get the index in the procedure linkage table which | |
1774 | corresponds to this symbol. This is the index of this symbol | |
1775 | in all the symbols for which we are making plt entries. The | |
1776 | first entry in the procedure linkage table is reserved. | |
1777 | ||
1778 | Get the offset into the .got table of the entry that | |
1779 | corresponds to this function. Each .got entry is 4 bytes. | |
1780 | The first three are reserved. | |
68ffbac6 | 1781 | |
ac145307 BS |
1782 | For static executables, we don't reserve anything. */ |
1783 | ||
1784 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
1785 | got_section_offset = plt_index + bed->got_header_size / 4; | |
1786 | got_dp_offset = got_section_offset + htab->params.dsbt_size; | |
1787 | rela_offset = plt_index * sizeof (Elf32_External_Rela); | |
1788 | ||
1789 | got_section_offset *= 4; | |
1790 | ||
1791 | /* Fill in the entry in the procedure linkage table. */ | |
1792 | ||
1793 | /* ldw .d2t2 *+B14($GOT(f)), b2 */ | |
1794 | bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e, | |
1795 | plt->contents + h->plt.offset); | |
1796 | /* mvk .s2 low(rela_offset), b0 */ | |
1797 | bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a, | |
1798 | plt->contents + h->plt.offset + 4); | |
1799 | /* mvkh .s2 high(rela_offset), b0 */ | |
1800 | bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a, | |
1801 | plt->contents + h->plt.offset + 8); | |
1802 | /* nop 2 */ | |
1803 | bfd_put_32 (output_bfd, 0x00002000, | |
1804 | plt->contents + h->plt.offset + 12); | |
1805 | /* b .s2 b2 */ | |
1806 | bfd_put_32 (output_bfd, 0x00080362, | |
1807 | plt->contents + h->plt.offset + 16); | |
1808 | /* nop 5 */ | |
1809 | bfd_put_32 (output_bfd, 0x00008000, | |
1810 | plt->contents + h->plt.offset + 20); | |
1811 | ||
1812 | /* Fill in the entry in the global offset table. */ | |
1813 | bfd_put_32 (output_bfd, | |
1814 | (plt->output_section->vma + plt->output_offset), | |
1815 | gotplt->contents + got_section_offset); | |
1816 | ||
1817 | /* Fill in the entry in the .rel.plt section. */ | |
1818 | rela.r_offset = (gotplt->output_section->vma | |
1819 | + gotplt->output_offset | |
1820 | + got_section_offset); | |
1821 | rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT); | |
1822 | rela.r_addend = 0; | |
1823 | loc = relplt->contents + rela_offset; | |
1824 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1825 | ||
1826 | if (!h->def_regular) | |
1827 | { | |
1828 | /* Mark the symbol as undefined, rather than as defined in | |
1829 | the .plt section. */ | |
1830 | sym->st_shndx = SHN_UNDEF; | |
1831 | sym->st_value = 0; | |
1832 | } | |
1833 | } | |
1834 | ||
1835 | if (h->got.offset != (bfd_vma) -1) | |
1836 | { | |
1837 | asection *sgot; | |
1838 | asection *srela; | |
1839 | ||
1840 | /* This symbol has an entry in the global offset table. | |
1841 | Set it up. */ | |
1842 | ||
3d4d4302 AM |
1843 | sgot = bfd_get_linker_section (dynobj, ".got"); |
1844 | srela = bfd_get_linker_section (dynobj, ".rela.got"); | |
ac145307 BS |
1845 | BFD_ASSERT (sgot != NULL && srela != NULL); |
1846 | ||
1847 | /* If this is a -Bsymbolic link, and the symbol is defined | |
1848 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
1849 | the symbol was forced to be local because of a version file. | |
1850 | The entry in the global offset table will already have been | |
1851 | initialized in the relocate_section function. */ | |
1852 | if (info->shared | |
1853 | && (info->symbolic | |
1854 | || h->dynindx == -1 || h->forced_local) && h->def_regular) | |
1855 | { | |
1856 | asection *s = h->root.u.def.section; | |
1857 | elf32_tic6x_make_got_dynreloc (output_bfd, htab, s, | |
1858 | h->got.offset & ~(bfd_vma) 1); | |
1859 | } | |
1860 | else | |
1861 | { | |
1862 | Elf_Internal_Rela outrel; | |
1863 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
1864 | sgot->contents + (h->got.offset & ~(bfd_vma) 1)); | |
1865 | outrel.r_offset = (sgot->output_section->vma | |
1866 | + sgot->output_offset | |
1867 | + (h->got.offset & ~(bfd_vma) 1)); | |
1868 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32); | |
1869 | outrel.r_addend = 0; | |
1870 | ||
1871 | elf32_tic6x_install_rela (output_bfd, srela, &outrel); | |
1872 | } | |
1873 | } | |
1874 | ||
1875 | if (h->needs_copy) | |
1876 | { | |
1877 | Elf_Internal_Rela rel; | |
1878 | ||
1879 | /* This symbol needs a copy reloc. Set it up. */ | |
1880 | ||
1881 | if (h->dynindx == -1 | |
1882 | || (h->root.type != bfd_link_hash_defined | |
1883 | && h->root.type != bfd_link_hash_defweak) | |
1884 | || htab->srelbss == NULL) | |
1885 | abort (); | |
1886 | ||
1887 | rel.r_offset = (h->root.u.def.value | |
1888 | + h->root.u.def.section->output_section->vma | |
1889 | + h->root.u.def.section->output_offset); | |
1890 | rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY); | |
1891 | rel.r_addend = 0; | |
1892 | ||
1893 | elf32_tic6x_install_rela (output_bfd, htab->srelbss, &rel); | |
1894 | } | |
1895 | ||
1896 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
9637f6ef | 1897 | if (h == elf_hash_table (info)->hdynamic |
ac145307 BS |
1898 | || h == elf_hash_table (info)->hgot) |
1899 | sym->st_shndx = SHN_ABS; | |
1900 | ||
1901 | return TRUE; | |
1902 | } | |
1903 | ||
9cf0e282 PB |
1904 | /* Unwinding tables are not referenced directly. This pass marks them as |
1905 | required if the corresponding code section is marked. */ | |
1906 | ||
1907 | static bfd_boolean | |
1908 | elf32_tic6x_gc_mark_extra_sections (struct bfd_link_info *info, | |
1909 | elf_gc_mark_hook_fn gc_mark_hook) | |
1910 | { | |
1911 | bfd *sub; | |
1912 | Elf_Internal_Shdr **elf_shdrp; | |
1913 | bfd_boolean again; | |
1914 | ||
7f6ab9f8 AM |
1915 | _bfd_elf_gc_mark_extra_sections (info, gc_mark_hook); |
1916 | ||
9cf0e282 PB |
1917 | /* Marking EH data may cause additional code sections to be marked, |
1918 | requiring multiple passes. */ | |
1919 | again = TRUE; | |
1920 | while (again) | |
1921 | { | |
1922 | again = FALSE; | |
1923 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
1924 | { | |
1925 | asection *o; | |
1926 | ||
1927 | if (! is_tic6x_elf (sub)) | |
1928 | continue; | |
1929 | ||
1930 | elf_shdrp = elf_elfsections (sub); | |
1931 | for (o = sub->sections; o != NULL; o = o->next) | |
1932 | { | |
1933 | Elf_Internal_Shdr *hdr; | |
1934 | ||
1935 | hdr = &elf_section_data (o)->this_hdr; | |
1936 | if (hdr->sh_type == SHT_C6000_UNWIND | |
1937 | && hdr->sh_link | |
1938 | && hdr->sh_link < elf_numsections (sub) | |
1939 | && !o->gc_mark | |
1940 | && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark) | |
1941 | { | |
1942 | again = TRUE; | |
1943 | if (!_bfd_elf_gc_mark (info, o, gc_mark_hook)) | |
1944 | return FALSE; | |
1945 | } | |
1946 | } | |
1947 | } | |
1948 | } | |
1949 | ||
1950 | return TRUE; | |
1951 | } | |
1952 | ||
1bce6bd8 PB |
1953 | /* Return TRUE if this is an unwinding table index. */ |
1954 | ||
1955 | static bfd_boolean | |
1956 | is_tic6x_elf_unwind_section_name (const char *name) | |
1957 | { | |
1958 | return (CONST_STRNEQ (name, ELF_STRING_C6000_unwind) | |
1959 | || CONST_STRNEQ (name, ELF_STRING_C6000_unwind_once)); | |
1960 | } | |
1961 | ||
1962 | ||
1963 | /* Set the type and flags for an unwinding index table. We do this by | |
1964 | the section name, which is a hack, but ought to work. */ | |
1965 | ||
1966 | static bfd_boolean | |
1967 | elf32_tic6x_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, | |
1968 | Elf_Internal_Shdr *hdr, asection *sec) | |
1969 | { | |
1970 | const char * name; | |
1971 | ||
1972 | name = bfd_get_section_name (abfd, sec); | |
1973 | ||
1974 | if (is_tic6x_elf_unwind_section_name (name)) | |
1975 | { | |
1976 | hdr->sh_type = SHT_C6000_UNWIND; | |
1977 | hdr->sh_flags |= SHF_LINK_ORDER; | |
1978 | } | |
1979 | ||
1980 | return TRUE; | |
1981 | } | |
1982 | ||
ac145307 BS |
1983 | /* Update the got entry reference counts for the section being removed. */ |
1984 | ||
1985 | static bfd_boolean | |
1986 | elf32_tic6x_gc_sweep_hook (bfd *abfd, | |
1987 | struct bfd_link_info *info, | |
1988 | asection *sec, | |
1989 | const Elf_Internal_Rela *relocs) | |
1990 | { | |
1991 | struct elf32_tic6x_link_hash_table *htab; | |
1992 | Elf_Internal_Shdr *symtab_hdr; | |
1993 | struct elf_link_hash_entry **sym_hashes; | |
1994 | bfd_signed_vma *local_got_refcounts; | |
1995 | const Elf_Internal_Rela *rel, *relend; | |
1996 | ||
1997 | if (info->relocatable) | |
1998 | return TRUE; | |
1999 | ||
2000 | htab = elf32_tic6x_hash_table (info); | |
2001 | if (htab == NULL) | |
2002 | return FALSE; | |
2003 | ||
2004 | elf_section_data (sec)->local_dynrel = NULL; | |
2005 | ||
2006 | symtab_hdr = &elf_symtab_hdr (abfd); | |
2007 | sym_hashes = elf_sym_hashes (abfd); | |
2008 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
2009 | ||
2010 | relend = relocs + sec->reloc_count; | |
2011 | for (rel = relocs; rel < relend; rel++) | |
2012 | { | |
2013 | unsigned long r_symndx; | |
2014 | unsigned int r_type; | |
2015 | struct elf_link_hash_entry *h = NULL; | |
2016 | ||
2017 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2018 | if (r_symndx >= symtab_hdr->sh_info) | |
2019 | { | |
2020 | struct elf32_tic6x_link_hash_entry *eh; | |
2021 | struct elf_dyn_relocs **pp; | |
2022 | struct elf_dyn_relocs *p; | |
2023 | ||
2024 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
2025 | while (h->root.type == bfd_link_hash_indirect | |
2026 | || h->root.type == bfd_link_hash_warning) | |
2027 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2028 | eh = (struct elf32_tic6x_link_hash_entry *) h; | |
2029 | ||
2030 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
2031 | if (p->sec == sec) | |
2032 | { | |
2033 | /* Everything must go for SEC. */ | |
2034 | *pp = p->next; | |
2035 | break; | |
2036 | } | |
2037 | } | |
2038 | ||
2039 | r_type = ELF32_R_TYPE (rel->r_info); | |
2040 | ||
2041 | switch (r_type) | |
2042 | { | |
2043 | case R_C6000_SBR_GOT_U15_W: | |
2044 | case R_C6000_SBR_GOT_L16_W: | |
2045 | case R_C6000_SBR_GOT_H16_W: | |
2fbb87f6 | 2046 | case R_C6000_EHTYPE: |
ac145307 BS |
2047 | if (h != NULL) |
2048 | { | |
2049 | if (h->got.refcount > 0) | |
2050 | h->got.refcount -= 1; | |
2051 | } | |
2052 | else if (local_got_refcounts != NULL) | |
2053 | { | |
2054 | if (local_got_refcounts[r_symndx] > 0) | |
2055 | local_got_refcounts[r_symndx] -= 1; | |
2056 | } | |
2057 | break; | |
2058 | ||
2059 | default: | |
2060 | break; | |
2061 | } | |
2062 | } | |
2063 | ||
2064 | return TRUE; | |
2065 | } | |
2066 | ||
2067 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
2068 | regular object. The current definition is in some section of the | |
2069 | dynamic object, but we're not including those sections. We have to | |
2070 | change the definition to something the rest of the link can | |
2071 | understand. */ | |
2072 | ||
2073 | static bfd_boolean | |
2074 | elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info, | |
2075 | struct elf_link_hash_entry *h) | |
2076 | { | |
2077 | struct elf32_tic6x_link_hash_table *htab; | |
2078 | bfd *dynobj; | |
2079 | asection *s; | |
2080 | ||
2081 | dynobj = elf_hash_table (info)->dynobj; | |
2082 | ||
2083 | /* Make sure we know what is going on here. */ | |
2084 | BFD_ASSERT (dynobj != NULL | |
2085 | && (h->needs_plt | |
2086 | || h->u.weakdef != NULL | |
2087 | || (h->def_dynamic && h->ref_regular && !h->def_regular))); | |
2088 | ||
2089 | /* If this is a function, put it in the procedure linkage table. We | |
2090 | will fill in the contents of the procedure linkage table later, | |
2091 | when we know the address of the .got section. */ | |
2092 | if (h->type == STT_FUNC | |
2093 | || h->needs_plt) | |
2094 | { | |
2095 | if (h->plt.refcount <= 0 | |
2096 | || SYMBOL_CALLS_LOCAL (info, h) | |
2097 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2098 | && h->root.type == bfd_link_hash_undefweak)) | |
2099 | { | |
2100 | /* This case can occur if we saw a PLT32 reloc in an input | |
2101 | file, but the symbol was never referred to by a dynamic | |
2102 | object, or if all references were garbage collected. In | |
2103 | such a case, we don't actually need to build a procedure | |
2104 | linkage table, and we can just do a PC32 reloc instead. */ | |
2105 | h->plt.offset = (bfd_vma) -1; | |
2106 | h->needs_plt = 0; | |
2107 | } | |
2108 | ||
2109 | return TRUE; | |
2110 | } | |
2111 | ||
2112 | /* If this is a weak symbol, and there is a real definition, the | |
2113 | processor independent code will have arranged for us to see the | |
2114 | real definition first, and we can just use the same value. */ | |
2115 | if (h->u.weakdef != NULL) | |
2116 | { | |
2117 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined | |
2118 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
2119 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
2120 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
2121 | h->non_got_ref = h->u.weakdef->non_got_ref; | |
2122 | return TRUE; | |
2123 | } | |
2124 | ||
2125 | /* This is a reference to a symbol defined by a dynamic object which | |
2126 | is not a function. */ | |
2127 | ||
2128 | /* If we are creating a shared library, we must presume that the | |
2129 | only references to the symbol are via the global offset table. | |
2130 | For such cases we need not do anything here; the relocations will | |
2131 | be handled correctly by relocate_section. */ | |
2132 | if (info->shared) | |
2133 | return TRUE; | |
2134 | ||
2135 | /* If there are no references to this symbol that do not use the | |
2136 | GOT, we don't need to generate a copy reloc. */ | |
2137 | if (!h->non_got_ref) | |
2138 | return TRUE; | |
2139 | ||
2140 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
2141 | if (info->nocopyreloc) | |
2142 | { | |
2143 | h->non_got_ref = 0; | |
2144 | return TRUE; | |
2145 | } | |
2146 | ||
2147 | htab = elf32_tic6x_hash_table (info); | |
2148 | if (htab == NULL) | |
2149 | return FALSE; | |
2150 | ||
ac145307 BS |
2151 | /* We must allocate the symbol in our .dynbss section, which will |
2152 | become part of the .bss section of the executable. There will be | |
2153 | an entry for this symbol in the .dynsym section. The dynamic | |
2154 | object will contain position independent code, so all references | |
2155 | from the dynamic object to this symbol will go through the global | |
2156 | offset table. The dynamic linker will use the .dynsym entry to | |
2157 | determine the address it must put in the global offset table, so | |
2158 | both the dynamic object and the regular object will refer to the | |
2159 | same memory location for the variable. */ | |
2160 | ||
2161 | /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to | |
2162 | copy the initial value out of the dynamic object and into the | |
2163 | runtime process image. */ | |
1d7e9d18 | 2164 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
ac145307 BS |
2165 | { |
2166 | htab->srelbss->size += sizeof (Elf32_External_Rela); | |
2167 | h->needs_copy = 1; | |
2168 | } | |
2169 | ||
2170 | s = htab->sdynbss; | |
2171 | ||
2172 | return _bfd_elf_adjust_dynamic_copy (h, s); | |
2173 | } | |
2174 | ||
41820509 JM |
2175 | static bfd_boolean |
2176 | elf32_tic6x_new_section_hook (bfd *abfd, asection *sec) | |
2177 | { | |
2178 | bfd_boolean ret; | |
2179 | ||
fbd9ad90 PB |
2180 | /* Allocate target specific section data. */ |
2181 | if (!sec->used_by_bfd) | |
2182 | { | |
2183 | _tic6x_elf_section_data *sdata; | |
2184 | bfd_size_type amt = sizeof (*sdata); | |
2185 | ||
2186 | sdata = (_tic6x_elf_section_data *) bfd_zalloc (abfd, amt); | |
2187 | if (sdata == NULL) | |
2188 | return FALSE; | |
2189 | sec->used_by_bfd = sdata; | |
2190 | } | |
2191 | ||
41820509 JM |
2192 | ret = _bfd_elf_new_section_hook (abfd, sec); |
2193 | sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p; | |
2194 | ||
2195 | return ret; | |
2196 | } | |
2197 | ||
2198 | /* Return true if relocation REL against section SEC is a REL rather | |
2199 | than RELA relocation. RELOCS is the first relocation in the | |
2200 | section and ABFD is the bfd that contains SEC. */ | |
2201 | ||
2202 | static bfd_boolean | |
2203 | elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec, | |
2204 | const Elf_Internal_Rela *relocs, | |
2205 | const Elf_Internal_Rela *rel) | |
2206 | { | |
2207 | Elf_Internal_Shdr *rel_hdr; | |
2208 | const struct elf_backend_data *bed; | |
2209 | ||
2210 | /* To determine which flavor of relocation this is, we depend on the | |
d4730f92 BS |
2211 | fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */ |
2212 | rel_hdr = elf_section_data (sec)->rel.hdr; | |
2213 | if (rel_hdr == NULL) | |
2214 | return FALSE; | |
41820509 | 2215 | bed = get_elf_backend_data (abfd); |
d4730f92 BS |
2216 | return ((size_t) (rel - relocs) |
2217 | < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel); | |
41820509 JM |
2218 | } |
2219 | ||
ac145307 BS |
2220 | /* We need dynamic symbols for every section, since segments can |
2221 | relocate independently. */ | |
2222 | static bfd_boolean | |
2223 | elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2224 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2225 | asection *p) | |
2226 | { | |
2227 | switch (elf_section_data (p)->this_hdr.sh_type) | |
2228 | { | |
2229 | case SHT_PROGBITS: | |
2230 | case SHT_NOBITS: | |
2231 | /* If sh_type is yet undecided, assume it could be | |
2232 | SHT_PROGBITS/SHT_NOBITS. */ | |
2233 | case SHT_NULL: | |
2234 | return FALSE; | |
2235 | ||
2236 | /* There shouldn't be section relative relocations | |
2237 | against any other section. */ | |
2238 | default: | |
2239 | return TRUE; | |
2240 | } | |
2241 | } | |
2242 | ||
40b36596 JM |
2243 | static bfd_boolean |
2244 | elf32_tic6x_relocate_section (bfd *output_bfd, | |
2245 | struct bfd_link_info *info, | |
2246 | bfd *input_bfd, | |
2247 | asection *input_section, | |
2248 | bfd_byte *contents, | |
2249 | Elf_Internal_Rela *relocs, | |
2250 | Elf_Internal_Sym *local_syms, | |
2251 | asection **local_sections) | |
2252 | { | |
ac145307 | 2253 | struct elf32_tic6x_link_hash_table *htab; |
40b36596 JM |
2254 | Elf_Internal_Shdr *symtab_hdr; |
2255 | struct elf_link_hash_entry **sym_hashes; | |
ac145307 | 2256 | bfd_vma *local_got_offsets; |
40b36596 JM |
2257 | Elf_Internal_Rela *rel; |
2258 | Elf_Internal_Rela *relend; | |
2259 | bfd_boolean ok = TRUE; | |
2260 | ||
ac145307 | 2261 | htab = elf32_tic6x_hash_table (info); |
40b36596 JM |
2262 | symtab_hdr = & elf_symtab_hdr (input_bfd); |
2263 | sym_hashes = elf_sym_hashes (input_bfd); | |
ac145307 | 2264 | local_got_offsets = elf_local_got_offsets (input_bfd); |
40b36596 JM |
2265 | |
2266 | relend = relocs + input_section->reloc_count; | |
2267 | ||
2268 | for (rel = relocs; rel < relend; rel ++) | |
2269 | { | |
2270 | int r_type; | |
2271 | unsigned long r_symndx; | |
2272 | arelent bfd_reloc; | |
2273 | reloc_howto_type *howto; | |
2274 | Elf_Internal_Sym *sym; | |
2275 | asection *sec; | |
2276 | struct elf_link_hash_entry *h; | |
4a732032 | 2277 | bfd_vma off, off2, relocation; |
40b36596 JM |
2278 | bfd_boolean unresolved_reloc; |
2279 | bfd_reloc_status_type r; | |
2280 | struct bfd_link_hash_entry *sbh; | |
41820509 | 2281 | bfd_boolean is_rel; |
40b36596 JM |
2282 | |
2283 | r_type = ELF32_R_TYPE (rel->r_info); | |
2284 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2285 | ||
41820509 JM |
2286 | is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section, |
2287 | relocs, rel); | |
2288 | ||
2289 | if (is_rel) | |
2290 | elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel); | |
2291 | else | |
2292 | elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel); | |
40b36596 JM |
2293 | howto = bfd_reloc.howto; |
2294 | if (howto == NULL) | |
2295 | { | |
2296 | bfd_set_error (bfd_error_bad_value); | |
2297 | return FALSE; | |
2298 | } | |
2299 | ||
2300 | h = NULL; | |
2301 | sym = NULL; | |
2302 | sec = NULL; | |
2303 | unresolved_reloc = FALSE; | |
2304 | ||
2305 | if (r_symndx < symtab_hdr->sh_info) | |
2306 | { | |
2307 | sym = local_syms + r_symndx; | |
2308 | sec = local_sections[r_symndx]; | |
2309 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
2310 | } | |
2311 | else | |
2312 | { | |
2313 | bfd_boolean warned; | |
2314 | ||
2315 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
2316 | r_symndx, symtab_hdr, sym_hashes, | |
2317 | h, sec, relocation, | |
2318 | unresolved_reloc, warned); | |
2319 | } | |
2320 | ||
dbaa2011 | 2321 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 2322 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 2323 | rel, 1, relend, howto, 0, contents); |
40b36596 JM |
2324 | |
2325 | if (info->relocatable) | |
41820509 JM |
2326 | { |
2327 | if (is_rel | |
2328 | && sym != NULL | |
2329 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
2330 | { | |
2331 | rel->r_addend = 0; | |
2332 | relocation = sec->output_offset + sym->st_value; | |
2333 | r = _bfd_relocate_contents (howto, input_bfd, relocation, | |
2334 | contents + rel->r_offset); | |
2335 | goto done_reloc; | |
2336 | } | |
2337 | continue; | |
2338 | } | |
40b36596 JM |
2339 | |
2340 | switch (r_type) | |
2341 | { | |
2342 | case R_C6000_NONE: | |
2343 | case R_C6000_ALIGN: | |
2344 | case R_C6000_FPHEAD: | |
2345 | case R_C6000_NOCMP: | |
2346 | /* No action needed. */ | |
2347 | continue; | |
2348 | ||
2349 | case R_C6000_PCR_S21: | |
ac145307 BS |
2350 | /* A branch to an undefined weak symbol is turned into a |
2351 | "b .s2 B3" instruction if the existing insn is of the | |
2352 | form "b .s2 symbol". */ | |
2353 | if (h ? h->root.type == bfd_link_hash_undefweak | |
2354 | && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1) | |
2355 | : r_symndx != STN_UNDEF && bfd_is_und_section (sec)) | |
2356 | { | |
2357 | unsigned long oldval; | |
2358 | oldval = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2359 | ||
2360 | if ((oldval & 0x7e) == 0x12) | |
2361 | { | |
2362 | oldval &= 0xF0000001; | |
2363 | bfd_put_32 (input_bfd, oldval | 0x000c0362, | |
2364 | contents + rel->r_offset); | |
2365 | r = bfd_reloc_ok; | |
2366 | goto done_reloc; | |
2367 | } | |
2368 | } | |
2369 | ||
40b36596 JM |
2370 | case R_C6000_PCR_S12: |
2371 | case R_C6000_PCR_S10: | |
2372 | case R_C6000_PCR_S7: | |
ac145307 BS |
2373 | if (h != NULL |
2374 | && h->plt.offset != (bfd_vma) -1 | |
2375 | && htab->elf.splt != NULL) | |
2376 | { | |
2377 | relocation = (htab->elf.splt->output_section->vma | |
2378 | + htab->elf.splt->output_offset | |
2379 | + h->plt.offset); | |
2380 | } | |
2381 | ||
40b36596 JM |
2382 | /* Generic PC-relative handling produces a value relative to |
2383 | the exact location of the relocation. Adjust it to be | |
2384 | relative to the start of the fetch packet instead. */ | |
2385 | relocation += (input_section->output_section->vma | |
2386 | + input_section->output_offset | |
2387 | + rel->r_offset) & 0x1f; | |
ac145307 BS |
2388 | unresolved_reloc = FALSE; |
2389 | break; | |
2390 | ||
4a732032 BS |
2391 | case R_C6000_PCR_H16: |
2392 | case R_C6000_PCR_L16: | |
2393 | off = (input_section->output_section->vma | |
2394 | + input_section->output_offset | |
2395 | + rel->r_offset); | |
2396 | /* These must be calculated as R = S - FP(FP(PC) - A). | |
2397 | PC, here, is the value we just computed in OFF. RELOCATION | |
2398 | has the address of S + A. */ | |
2399 | relocation -= rel->r_addend; | |
2400 | off2 = ((off & ~(bfd_vma)0x1f) - rel->r_addend) & (bfd_vma)~0x1f; | |
2401 | off2 = relocation - off2; | |
2402 | relocation = off + off2; | |
2403 | break; | |
2404 | ||
ac145307 BS |
2405 | case R_C6000_DSBT_INDEX: |
2406 | relocation = elf32_tic6x_hash_table (info)->params.dsbt_index; | |
2407 | if (!info->shared || relocation != 0) | |
2408 | break; | |
2409 | ||
2410 | /* fall through */ | |
40b36596 JM |
2411 | case R_C6000_ABS32: |
2412 | case R_C6000_ABS16: | |
2413 | case R_C6000_ABS8: | |
2414 | case R_C6000_ABS_S16: | |
2415 | case R_C6000_ABS_L16: | |
2416 | case R_C6000_ABS_H16: | |
ac145307 BS |
2417 | /* When generating a shared object or relocatable executable, these |
2418 | relocations are copied into the output file to be resolved at | |
2419 | run time. */ | |
2420 | if ((info->shared || elf32_tic6x_using_dsbt (output_bfd)) | |
2421 | && (input_section->flags & SEC_ALLOC) | |
2422 | && (h == NULL | |
2423 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2424 | || h->root.type != bfd_link_hash_undefweak)) | |
2425 | { | |
2426 | Elf_Internal_Rela outrel; | |
2427 | bfd_boolean skip, relocate; | |
2428 | asection *sreloc; | |
2429 | ||
2430 | unresolved_reloc = FALSE; | |
2431 | ||
2432 | sreloc = elf_section_data (input_section)->sreloc; | |
2433 | BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL); | |
2434 | ||
2435 | skip = FALSE; | |
2436 | relocate = FALSE; | |
2437 | ||
2438 | outrel.r_offset = | |
2439 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2440 | rel->r_offset); | |
2441 | if (outrel.r_offset == (bfd_vma) -1) | |
2442 | skip = TRUE; | |
2443 | else if (outrel.r_offset == (bfd_vma) -2) | |
2444 | skip = TRUE, relocate = TRUE; | |
2445 | outrel.r_offset += (input_section->output_section->vma | |
2446 | + input_section->output_offset); | |
2447 | ||
2448 | if (skip) | |
2449 | memset (&outrel, 0, sizeof outrel); | |
2450 | else if (h != NULL | |
2451 | && h->dynindx != -1 | |
2452 | && (!info->shared | |
2453 | || !info->symbolic | |
2454 | || !h->def_regular)) | |
2455 | { | |
2456 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
2457 | outrel.r_addend = rel->r_addend; | |
2458 | } | |
2459 | else | |
2460 | { | |
2461 | long indx; | |
2462 | ||
2463 | outrel.r_addend = relocation + rel->r_addend; | |
2464 | ||
2465 | if (bfd_is_abs_section (sec)) | |
2466 | indx = 0; | |
2467 | else if (sec == NULL || sec->owner == NULL) | |
2468 | { | |
2469 | bfd_set_error (bfd_error_bad_value); | |
2470 | return FALSE; | |
2471 | } | |
2472 | else | |
2473 | { | |
2474 | asection *osec; | |
2475 | ||
2476 | osec = sec->output_section; | |
2477 | indx = elf_section_data (osec)->dynindx; | |
2478 | outrel.r_addend -= osec->vma; | |
2479 | BFD_ASSERT (indx != 0); | |
2480 | } | |
2481 | ||
2482 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
2483 | } | |
2484 | ||
2485 | elf32_tic6x_install_rela (output_bfd, sreloc, &outrel); | |
2486 | ||
2487 | /* If this reloc is against an external symbol, we do not want to | |
2488 | fiddle with the addend. Otherwise, we need to include the symbol | |
2489 | value so that it becomes an addend for the dynamic reloc. */ | |
2490 | if (! relocate) | |
2491 | continue; | |
2492 | } | |
2493 | ||
40b36596 JM |
2494 | /* Generic logic OK. */ |
2495 | break; | |
2496 | ||
2497 | case R_C6000_SBR_U15_B: | |
2498 | case R_C6000_SBR_U15_H: | |
2499 | case R_C6000_SBR_U15_W: | |
2500 | case R_C6000_SBR_S16: | |
2501 | case R_C6000_SBR_L16_B: | |
2502 | case R_C6000_SBR_L16_H: | |
2503 | case R_C6000_SBR_L16_W: | |
2504 | case R_C6000_SBR_H16_B: | |
2505 | case R_C6000_SBR_H16_H: | |
2506 | case R_C6000_SBR_H16_W: | |
2507 | sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE", | |
2508 | FALSE, FALSE, TRUE); | |
2509 | if (sbh != NULL | |
2510 | && (sbh->type == bfd_link_hash_defined | |
2511 | || sbh->type == bfd_link_hash_defweak)) | |
ac145307 BS |
2512 | { |
2513 | if (h ? (h->root.type == bfd_link_hash_undefweak | |
2514 | && (htab->elf.splt == NULL | |
2515 | || h->plt.offset == (bfd_vma) -1)) | |
2516 | : r_symndx != STN_UNDEF && bfd_is_und_section (sec)) | |
2517 | relocation = 0; | |
2518 | else | |
2519 | relocation -= (sbh->u.def.value | |
2520 | + sbh->u.def.section->output_section->vma | |
2521 | + sbh->u.def.section->output_offset); | |
2522 | } | |
40b36596 JM |
2523 | else |
2524 | { | |
2525 | (*_bfd_error_handler) (_("%B: SB-relative relocation but " | |
2526 | "__c6xabi_DSBT_BASE not defined"), | |
2527 | input_bfd); | |
2528 | ok = FALSE; | |
2529 | continue; | |
2530 | } | |
2531 | break; | |
2532 | ||
2533 | case R_C6000_SBR_GOT_U15_W: | |
2534 | case R_C6000_SBR_GOT_L16_W: | |
2535 | case R_C6000_SBR_GOT_H16_W: | |
2fbb87f6 | 2536 | case R_C6000_EHTYPE: |
ac145307 BS |
2537 | /* Relocation is to the entry for this symbol in the global |
2538 | offset table. */ | |
2539 | if (htab->elf.sgot == NULL) | |
2540 | abort (); | |
2541 | ||
2542 | if (h != NULL) | |
2543 | { | |
2544 | bfd_boolean dyn; | |
2545 | ||
2546 | off = h->got.offset; | |
2547 | dyn = htab->elf.dynamic_sections_created; | |
2548 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) | |
2549 | || (info->shared | |
2550 | && SYMBOL_REFERENCES_LOCAL (info, h)) | |
2551 | || (ELF_ST_VISIBILITY (h->other) | |
2552 | && h->root.type == bfd_link_hash_undefweak)) | |
2553 | { | |
2554 | /* This is actually a static link, or it is a | |
2555 | -Bsymbolic link and the symbol is defined | |
2556 | locally, or the symbol was forced to be local | |
2557 | because of a version file. We must initialize | |
2558 | this entry in the global offset table. Since the | |
2559 | offset must always be a multiple of 4, we use the | |
2560 | least significant bit to record whether we have | |
2561 | initialized it already. | |
2562 | ||
2563 | When doing a dynamic link, we create a .rel.got | |
2564 | relocation entry to initialize the value. This | |
2565 | is done in the finish_dynamic_symbol routine. */ | |
2566 | if ((off & 1) != 0) | |
2567 | off &= ~1; | |
2568 | else | |
2569 | { | |
2570 | bfd_put_32 (output_bfd, relocation, | |
2571 | htab->elf.sgot->contents + off); | |
2572 | h->got.offset |= 1; | |
2573 | ||
2574 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, | |
2575 | h) | |
2576 | && !(ELF_ST_VISIBILITY (h->other) | |
2577 | && h->root.type == bfd_link_hash_undefweak)) | |
2578 | elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, | |
2579 | off); | |
2580 | } | |
2581 | } | |
2582 | else | |
2583 | unresolved_reloc = FALSE; | |
2584 | } | |
2585 | else | |
2586 | { | |
2587 | if (local_got_offsets == NULL) | |
2588 | abort (); | |
2589 | ||
2590 | off = local_got_offsets[r_symndx]; | |
2591 | ||
2592 | /* The offset must always be a multiple of 4. We use | |
2593 | the least significant bit to record whether we have | |
2594 | already generated the necessary reloc. */ | |
2595 | if ((off & 1) != 0) | |
2596 | off &= ~1; | |
2597 | else | |
2598 | { | |
2599 | bfd_put_32 (output_bfd, relocation, | |
2600 | htab->elf.sgot->contents + off); | |
2601 | ||
2602 | if (info->shared || elf32_tic6x_using_dsbt (output_bfd)) | |
2603 | elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off); | |
2604 | ||
2605 | local_got_offsets[r_symndx] |= 1; | |
2606 | } | |
2607 | } | |
2608 | ||
2609 | if (off >= (bfd_vma) -2) | |
2610 | abort (); | |
2611 | ||
2612 | if (htab->dsbt) | |
2613 | relocation = (htab->elf.sgot->output_section->vma | |
2614 | + htab->elf.sgot->output_offset + off | |
2615 | - htab->dsbt->output_section->vma | |
2616 | - htab->dsbt->output_offset); | |
2617 | else | |
2618 | relocation = (htab->elf.sgot->output_section->vma | |
2619 | + htab->elf.sgot->output_offset + off | |
2620 | - htab->elf.sgotplt->output_section->vma | |
2621 | - htab->elf.sgotplt->output_offset); | |
2622 | ||
2623 | if (rel->r_addend != 0) | |
2624 | { | |
2625 | /* We can't do anything for a relocation which is against | |
2626 | a symbol *plus offset*. GOT holds relocations for | |
2627 | symbols. Make this an error; the compiler isn't | |
2628 | allowed to pass us these kinds of things. */ | |
2629 | if (h == NULL) | |
2630 | (*_bfd_error_handler) | |
2631 | (_("%B, section %A: relocation %s with non-zero addend %d" | |
2632 | " against local symbol"), | |
2633 | input_bfd, | |
2634 | input_section, | |
2635 | elf32_tic6x_howto_table[r_type].name, | |
2636 | rel->r_addend); | |
2637 | else | |
2638 | (*_bfd_error_handler) | |
2639 | (_("%B, section %A: relocation %s with non-zero addend %d" | |
2640 | " against symbol `%s'"), | |
2641 | input_bfd, | |
2642 | input_section, | |
2643 | elf32_tic6x_howto_table[r_type].name, | |
2644 | rel->r_addend, | |
2645 | h->root.root.string[0] != '\0' ? h->root.root.string | |
2646 | : _("[whose name is lost]")); | |
2647 | ||
2648 | bfd_set_error (bfd_error_bad_value); | |
2649 | return FALSE; | |
2650 | } | |
2651 | break; | |
2652 | ||
40b36596 | 2653 | case R_C6000_PREL31: |
44e87ece PB |
2654 | if (h != NULL |
2655 | && h->plt.offset != (bfd_vma) -1 | |
2656 | && htab->elf.splt != NULL) | |
2657 | { | |
2658 | relocation = (htab->elf.splt->output_section->vma | |
2659 | + htab->elf.splt->output_offset | |
2660 | + h->plt.offset); | |
2661 | } | |
2662 | break; | |
40b36596 JM |
2663 | |
2664 | case R_C6000_COPY: | |
2665 | /* Invalid in relocatable object. */ | |
2666 | default: | |
2667 | /* Unknown relocation. */ | |
2668 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
2669 | input_bfd, r_type); | |
2670 | ok = FALSE; | |
2671 | continue; | |
2672 | } | |
2673 | ||
2674 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
2675 | contents, rel->r_offset, | |
2676 | relocation, rel->r_addend); | |
2677 | ||
41820509 | 2678 | done_reloc: |
40b36596 JM |
2679 | if (r == bfd_reloc_ok |
2680 | && howto->complain_on_overflow == complain_overflow_bitfield) | |
2681 | { | |
2682 | /* Generic overflow handling accepts cases the ABI says | |
2683 | should be rejected for R_C6000_ABS16 and | |
2684 | R_C6000_ABS8. */ | |
2685 | bfd_vma value = (relocation + rel->r_addend) & 0xffffffff; | |
2686 | bfd_vma sbit = 1 << (howto->bitsize - 1); | |
2687 | bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff; | |
2688 | bfd_vma value_sbits = value & sbits; | |
2689 | ||
2690 | if (value_sbits != 0 | |
2691 | && value_sbits != sbit | |
2692 | && value_sbits != sbits) | |
2693 | r = bfd_reloc_overflow; | |
2694 | } | |
2695 | ||
2696 | if (r != bfd_reloc_ok) | |
2697 | { | |
2698 | const char *name; | |
2699 | const char *error_message; | |
2700 | ||
2701 | if (h != NULL) | |
2702 | name = h->root.root.string; | |
2703 | else | |
2704 | { | |
2705 | name = bfd_elf_string_from_elf_section (input_bfd, | |
2706 | symtab_hdr->sh_link, | |
2707 | sym->st_name); | |
2708 | if (name == NULL) | |
2709 | return FALSE; | |
2710 | if (*name == '\0') | |
2711 | name = bfd_section_name (input_bfd, sec); | |
2712 | } | |
2713 | ||
2714 | switch (r) | |
2715 | { | |
2716 | case bfd_reloc_overflow: | |
2717 | /* If the overflowing reloc was to an undefined symbol, | |
2718 | we have already printed one error message and there | |
2719 | is no point complaining again. */ | |
2720 | if ((! h || | |
2721 | h->root.type != bfd_link_hash_undefined) | |
2722 | && (!((*info->callbacks->reloc_overflow) | |
2723 | (info, (h ? &h->root : NULL), name, howto->name, | |
2724 | (bfd_vma) 0, input_bfd, input_section, | |
2725 | rel->r_offset)))) | |
2726 | return FALSE; | |
2727 | break; | |
2728 | ||
2729 | case bfd_reloc_undefined: | |
2730 | if (!((*info->callbacks->undefined_symbol) | |
2731 | (info, name, input_bfd, input_section, | |
2732 | rel->r_offset, TRUE))) | |
2733 | return FALSE; | |
2734 | break; | |
2735 | ||
2736 | case bfd_reloc_outofrange: | |
2737 | error_message = _("out of range"); | |
2738 | goto common_error; | |
2739 | ||
2740 | case bfd_reloc_notsupported: | |
2741 | error_message = _("unsupported relocation"); | |
2742 | goto common_error; | |
2743 | ||
2744 | case bfd_reloc_dangerous: | |
2745 | error_message = _("dangerous relocation"); | |
2746 | goto common_error; | |
2747 | ||
2748 | default: | |
2749 | error_message = _("unknown error"); | |
2750 | /* Fall through. */ | |
2751 | ||
2752 | common_error: | |
2753 | BFD_ASSERT (error_message != NULL); | |
2754 | if (!((*info->callbacks->reloc_dangerous) | |
2755 | (info, error_message, input_bfd, input_section, | |
2756 | rel->r_offset))) | |
2757 | return FALSE; | |
2758 | break; | |
2759 | } | |
2760 | } | |
2761 | } | |
2762 | ||
2763 | return ok; | |
2764 | } | |
2765 | ||
ac145307 BS |
2766 | \f |
2767 | /* Look through the relocs for a section during the first phase, and | |
2768 | calculate needed space in the global offset table, procedure linkage | |
2769 | table, and dynamic reloc sections. */ | |
2770 | ||
2771 | static bfd_boolean | |
2772 | elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info, | |
2773 | asection *sec, const Elf_Internal_Rela *relocs) | |
2774 | { | |
2775 | struct elf32_tic6x_link_hash_table *htab; | |
2776 | Elf_Internal_Shdr *symtab_hdr; | |
2777 | struct elf_link_hash_entry **sym_hashes; | |
2778 | const Elf_Internal_Rela *rel; | |
2779 | const Elf_Internal_Rela *rel_end; | |
2780 | asection *sreloc; | |
2781 | ||
2782 | if (info->relocatable) | |
2783 | return TRUE; | |
2784 | ||
2785 | htab = elf32_tic6x_hash_table (info); | |
2786 | symtab_hdr = &elf_symtab_hdr (abfd); | |
2787 | sym_hashes = elf_sym_hashes (abfd); | |
2788 | ||
2789 | /* Create dynamic sections for relocatable executables so that we can | |
2790 | copy relocations. */ | |
2a616379 | 2791 | if ((info->shared || elf32_tic6x_using_dsbt (abfd)) |
ac145307 BS |
2792 | && ! htab->elf.dynamic_sections_created) |
2793 | { | |
2794 | if (! _bfd_elf_link_create_dynamic_sections (abfd, info)) | |
2795 | return FALSE; | |
2796 | } | |
2797 | ||
2798 | sreloc = NULL; | |
2799 | ||
2800 | rel_end = relocs + sec->reloc_count; | |
2801 | for (rel = relocs; rel < rel_end; rel++) | |
2802 | { | |
2803 | unsigned int r_type; | |
2804 | unsigned long r_symndx; | |
2805 | struct elf_link_hash_entry *h; | |
2806 | Elf_Internal_Sym *isym; | |
2807 | ||
2808 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2809 | r_type = ELF32_R_TYPE (rel->r_info); | |
2810 | ||
2811 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
2812 | { | |
2813 | (*_bfd_error_handler) (_("%B: bad symbol index: %d"), | |
2814 | abfd, | |
2815 | r_symndx); | |
2816 | return FALSE; | |
2817 | } | |
2818 | ||
2819 | if (r_symndx < symtab_hdr->sh_info) | |
2820 | { | |
2821 | /* A local symbol. */ | |
2822 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
2823 | abfd, r_symndx); | |
2824 | if (isym == NULL) | |
2825 | return FALSE; | |
2826 | h = NULL; | |
2827 | } | |
2828 | else | |
2829 | { | |
2830 | isym = NULL; | |
2831 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
2832 | while (h->root.type == bfd_link_hash_indirect | |
2833 | || h->root.type == bfd_link_hash_warning) | |
2834 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2835 | } | |
2836 | ||
2837 | switch (r_type) | |
2838 | { | |
2839 | case R_C6000_PCR_S21: | |
44e87ece | 2840 | case R_C6000_PREL31: |
ac145307 BS |
2841 | /* This symbol requires a procedure linkage table entry. We |
2842 | actually build the entry in adjust_dynamic_symbol, | |
2843 | because this might be a case of linking PIC code which is | |
2844 | never referenced by a dynamic object, in which case we | |
2845 | don't need to generate a procedure linkage table entry | |
2846 | after all. */ | |
2847 | ||
2848 | /* If this is a local symbol, we resolve it directly without | |
2849 | creating a procedure linkage table entry. */ | |
2850 | if (h == NULL) | |
2851 | continue; | |
2852 | ||
2853 | h->needs_plt = 1; | |
2854 | h->plt.refcount += 1; | |
2855 | break; | |
2856 | ||
2857 | case R_C6000_SBR_GOT_U15_W: | |
2858 | case R_C6000_SBR_GOT_L16_W: | |
2859 | case R_C6000_SBR_GOT_H16_W: | |
2fbb87f6 | 2860 | case R_C6000_EHTYPE: |
ac145307 BS |
2861 | /* This symbol requires a global offset table entry. */ |
2862 | if (h != NULL) | |
2863 | { | |
2864 | h->got.refcount += 1; | |
2865 | } | |
2866 | else | |
2867 | { | |
2868 | bfd_signed_vma *local_got_refcounts; | |
2869 | ||
2870 | /* This is a global offset table entry for a local symbol. */ | |
2871 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
2872 | if (local_got_refcounts == NULL) | |
2873 | { | |
2874 | bfd_size_type size; | |
2875 | ||
2876 | size = symtab_hdr->sh_info; | |
2877 | size *= (sizeof (bfd_signed_vma) | |
2878 | + sizeof (bfd_vma) + sizeof(char)); | |
2879 | local_got_refcounts = bfd_zalloc (abfd, size); | |
2880 | if (local_got_refcounts == NULL) | |
2881 | return FALSE; | |
2882 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
2883 | } | |
2884 | local_got_refcounts[r_symndx] += 1; | |
2885 | } | |
2886 | ||
2887 | if (htab->elf.sgot == NULL) | |
2888 | { | |
2889 | if (htab->elf.dynobj == NULL) | |
2890 | htab->elf.dynobj = abfd; | |
2891 | if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
2892 | return FALSE; | |
2893 | } | |
2894 | break; | |
2895 | ||
2896 | case R_C6000_DSBT_INDEX: | |
2897 | /* We'd like to check for nonzero dsbt_index here, but it's | |
2898 | set up only after check_relocs is called. Instead, we | |
2899 | store the number of R_C6000_DSBT_INDEX relocs in the | |
2900 | pc_count field, and potentially discard the extra space | |
2901 | in elf32_tic6x_allocate_dynrelocs. */ | |
2902 | if (!info->shared) | |
2903 | break; | |
2904 | ||
2905 | /* fall through */ | |
2906 | case R_C6000_ABS32: | |
2907 | case R_C6000_ABS16: | |
2908 | case R_C6000_ABS8: | |
2909 | case R_C6000_ABS_S16: | |
2910 | case R_C6000_ABS_L16: | |
2911 | case R_C6000_ABS_H16: | |
2912 | /* If we are creating a shared library, and this is a reloc | |
2913 | against a global symbol, or a non PC relative reloc | |
2914 | against a local symbol, then we need to copy the reloc | |
2915 | into the shared library. However, if we are linking with | |
2916 | -Bsymbolic, we do not need to copy a reloc against a | |
2917 | global symbol which is defined in an object we are | |
2918 | including in the link (i.e., DEF_REGULAR is set). At | |
2919 | this point we have not seen all the input files, so it is | |
2920 | possible that DEF_REGULAR is not set now but will be set | |
2921 | later (it is never cleared). In case of a weak definition, | |
2922 | DEF_REGULAR may be cleared later by a strong definition in | |
2923 | a shared library. We account for that possibility below by | |
2924 | storing information in the relocs_copied field of the hash | |
2925 | table entry. A similar situation occurs when creating | |
2926 | shared libraries and symbol visibility changes render the | |
2927 | symbol local. | |
2928 | ||
2929 | If on the other hand, we are creating an executable, we | |
2930 | may need to keep relocations for symbols satisfied by a | |
2931 | dynamic library if we manage to avoid copy relocs for the | |
2932 | symbol. */ | |
2933 | if ((info->shared || elf32_tic6x_using_dsbt (abfd)) | |
2934 | && (sec->flags & SEC_ALLOC) != 0) | |
2935 | { | |
2936 | struct elf_dyn_relocs *p; | |
2937 | struct elf_dyn_relocs **head; | |
2938 | ||
2939 | /* We must copy these reloc types into the output file. | |
2940 | Create a reloc section in dynobj and make room for | |
2941 | this reloc. */ | |
2942 | if (sreloc == NULL) | |
2943 | { | |
2944 | if (htab->elf.dynobj == NULL) | |
2945 | htab->elf.dynobj = abfd; | |
2946 | ||
2947 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
2948 | (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE); | |
2949 | ||
2950 | if (sreloc == NULL) | |
2951 | return FALSE; | |
2952 | } | |
2953 | ||
2954 | /* If this is a global symbol, we count the number of | |
2955 | relocations we need for this symbol. */ | |
2956 | if (h != NULL) | |
2957 | { | |
2958 | head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs; | |
2959 | } | |
2960 | else | |
2961 | { | |
2962 | /* Track dynamic relocs needed for local syms too. | |
2963 | We really need local syms available to do this | |
2964 | easily. Oh well. */ | |
2965 | void **vpp; | |
2966 | asection *s; | |
2967 | ||
2968 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
2969 | if (s == NULL) | |
2970 | s = sec; | |
2971 | ||
2972 | vpp = &elf_section_data (s)->local_dynrel; | |
2973 | head = (struct elf_dyn_relocs **)vpp; | |
2974 | } | |
2975 | ||
2976 | p = *head; | |
2977 | if (p == NULL || p->sec != sec) | |
2978 | { | |
2979 | bfd_size_type amt = sizeof *p; | |
2980 | p = bfd_alloc (htab->elf.dynobj, amt); | |
2981 | if (p == NULL) | |
2982 | return FALSE; | |
2983 | p->next = *head; | |
2984 | *head = p; | |
2985 | p->sec = sec; | |
2986 | p->count = 0; | |
2123f9ad | 2987 | p->pc_count = 0; |
ac145307 BS |
2988 | } |
2989 | ||
2990 | p->count += 1; | |
2991 | if (r_type == R_C6000_DSBT_INDEX) | |
2992 | p->pc_count += 1; | |
2993 | } | |
2994 | break; | |
2995 | ||
2996 | case R_C6000_SBR_U15_B: | |
2997 | case R_C6000_SBR_U15_H: | |
2998 | case R_C6000_SBR_U15_W: | |
2999 | case R_C6000_SBR_S16: | |
3000 | case R_C6000_SBR_L16_B: | |
3001 | case R_C6000_SBR_L16_H: | |
3002 | case R_C6000_SBR_L16_W: | |
3003 | case R_C6000_SBR_H16_B: | |
3004 | case R_C6000_SBR_H16_H: | |
3005 | case R_C6000_SBR_H16_W: | |
3006 | if (h != NULL && info->executable) | |
3007 | { | |
3008 | /* For B14-relative addresses, we might need a copy | |
3009 | reloc. */ | |
3010 | h->non_got_ref = 1; | |
3011 | } | |
3012 | break; | |
3013 | ||
3014 | default: | |
3015 | break; | |
3016 | } | |
3017 | } | |
3018 | ||
3019 | return TRUE; | |
3020 | } | |
3021 | ||
3022 | static bfd_boolean | |
3023 | elf32_tic6x_add_symbol_hook (bfd *abfd, | |
3024 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
3025 | Elf_Internal_Sym *sym, | |
3026 | const char **namep ATTRIBUTE_UNUSED, | |
3027 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3028 | asection **secp, | |
3029 | bfd_vma *valp) | |
3030 | { | |
3031 | switch (sym->st_shndx) | |
3032 | { | |
3033 | case SHN_TIC6X_SCOMMON: | |
3034 | *secp = bfd_make_section_old_way (abfd, ".scommon"); | |
3035 | (*secp)->flags |= SEC_IS_COMMON; | |
3036 | *valp = sym->st_size; | |
3037 | bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value)); | |
3038 | break; | |
3039 | } | |
3040 | ||
3041 | return TRUE; | |
3042 | } | |
3043 | ||
3044 | static void | |
3045 | elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym) | |
3046 | { | |
3047 | elf_symbol_type *elfsym; | |
3048 | ||
3049 | elfsym = (elf_symbol_type *) asym; | |
3050 | switch (elfsym->internal_elf_sym.st_shndx) | |
3051 | { | |
3052 | case SHN_TIC6X_SCOMMON: | |
3053 | if (tic6x_elf_scom_section.name == NULL) | |
3054 | { | |
3055 | /* Initialize the small common section. */ | |
3056 | tic6x_elf_scom_section.name = ".scommon"; | |
3057 | tic6x_elf_scom_section.flags = SEC_IS_COMMON; | |
3058 | tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section; | |
3059 | tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol; | |
3060 | tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr; | |
3061 | tic6x_elf_scom_symbol.name = ".scommon"; | |
3062 | tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM; | |
3063 | tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section; | |
3064 | tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol; | |
3065 | } | |
3066 | asym->section = &tic6x_elf_scom_section; | |
3067 | asym->value = elfsym->internal_elf_sym.st_size; | |
3068 | break; | |
3069 | } | |
3070 | } | |
3071 | ||
3072 | static int | |
3073 | elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
3074 | const char *name ATTRIBUTE_UNUSED, | |
3075 | Elf_Internal_Sym *sym, | |
3076 | asection *input_sec, | |
3077 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
3078 | { | |
3079 | /* If we see a common symbol, which implies a relocatable link, then | |
3080 | if a symbol was small common in an input file, mark it as small | |
3081 | common in the output file. */ | |
3082 | if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0) | |
3083 | sym->st_shndx = SHN_TIC6X_SCOMMON; | |
3084 | ||
3085 | return 1; | |
3086 | } | |
3087 | ||
3088 | static bfd_boolean | |
3089 | elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, | |
3090 | asection *sec, | |
3091 | int *retval) | |
3092 | { | |
3093 | if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) | |
3094 | { | |
3095 | *retval = SHN_TIC6X_SCOMMON; | |
3096 | return TRUE; | |
3097 | } | |
3098 | ||
3099 | return FALSE; | |
3100 | } | |
3101 | ||
3102 | /* Allocate space in .plt, .got and associated reloc sections for | |
3103 | dynamic relocs. */ | |
3104 | ||
3105 | static bfd_boolean | |
3106 | elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) | |
3107 | { | |
3108 | struct bfd_link_info *info; | |
3109 | struct elf32_tic6x_link_hash_table *htab; | |
3110 | struct elf32_tic6x_link_hash_entry *eh; | |
3111 | struct elf_dyn_relocs *p; | |
3112 | ||
3113 | if (h->root.type == bfd_link_hash_indirect) | |
3114 | return TRUE; | |
3115 | ||
ac145307 | 3116 | eh = (struct elf32_tic6x_link_hash_entry *) h; |
ac145307 BS |
3117 | info = (struct bfd_link_info *) inf; |
3118 | htab = elf32_tic6x_hash_table (info); | |
3119 | ||
3120 | if (htab->elf.dynamic_sections_created && h->plt.refcount > 0) | |
3121 | { | |
3122 | /* Make sure this symbol is output as a dynamic symbol. | |
3123 | Undefined weak syms won't yet be marked as dynamic. */ | |
3124 | if (h->dynindx == -1 && !h->forced_local) | |
3125 | { | |
3126 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
3127 | return FALSE; | |
3128 | } | |
3129 | ||
3130 | if (info->shared | |
3131 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) | |
3132 | { | |
3133 | asection *s = htab->elf.splt; | |
3134 | ||
3135 | /* If this is the first .plt entry, make room for the special | |
3136 | first entry. */ | |
3137 | if (s->size == 0) | |
3138 | s->size += PLT_ENTRY_SIZE; | |
3139 | ||
3140 | h->plt.offset = s->size; | |
3141 | ||
3142 | /* If this symbol is not defined in a regular file, and we are | |
3143 | not generating a shared library, then set the symbol to this | |
3144 | location in the .plt. This is required to make function | |
3145 | pointers compare as equal between the normal executable and | |
3146 | the shared library. */ | |
3147 | if (! info->shared && !h->def_regular) | |
3148 | { | |
3149 | h->root.u.def.section = s; | |
3150 | h->root.u.def.value = h->plt.offset; | |
3151 | } | |
3152 | ||
3153 | /* Make room for this entry. */ | |
3154 | s->size += PLT_ENTRY_SIZE; | |
3155 | /* We also need to make an entry in the .got.plt section, which | |
3156 | will be placed in the .got section by the linker script. */ | |
3157 | htab->elf.sgotplt->size += 4; | |
3158 | /* We also need to make an entry in the .rel.plt section. */ | |
3159 | htab->elf.srelplt->size += sizeof (Elf32_External_Rela); | |
3160 | } | |
3161 | else | |
3162 | { | |
3163 | h->plt.offset = (bfd_vma) -1; | |
3164 | h->needs_plt = 0; | |
3165 | } | |
3166 | } | |
3167 | else | |
3168 | { | |
3169 | h->plt.offset = (bfd_vma) -1; | |
3170 | h->needs_plt = 0; | |
3171 | } | |
3172 | ||
3173 | if (h->got.refcount > 0) | |
3174 | { | |
3175 | asection *s; | |
3176 | ||
3177 | /* Make sure this symbol is output as a dynamic symbol. | |
3178 | Undefined weak syms won't yet be marked as dynamic. */ | |
3179 | if (h->dynindx == -1 | |
3180 | && !h->forced_local) | |
3181 | { | |
3182 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
3183 | return FALSE; | |
3184 | } | |
3185 | ||
3186 | s = htab->elf.sgot; | |
3187 | h->got.offset = s->size; | |
3188 | s->size += 4; | |
3189 | ||
3190 | if (!(ELF_ST_VISIBILITY (h->other) | |
3191 | && h->root.type == bfd_link_hash_undefweak)) | |
3192 | htab->elf.srelgot->size += sizeof (Elf32_External_Rela); | |
3193 | } | |
3194 | else | |
3195 | h->got.offset = (bfd_vma) -1; | |
3196 | ||
3197 | if (eh->dyn_relocs == NULL) | |
3198 | return TRUE; | |
3199 | ||
3200 | /* Discard relocs on undefined weak syms with non-default | |
3201 | visibility. */ | |
3202 | if (info->shared || elf32_tic6x_using_dsbt (htab->obfd)) | |
3203 | { | |
3204 | /* We use the pc_count field to hold the number of | |
3205 | R_C6000_DSBT_INDEX relocs. */ | |
3206 | if (htab->params.dsbt_index != 0) | |
3207 | { | |
3208 | struct elf_dyn_relocs **pp; | |
3209 | ||
3210 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
3211 | { | |
3212 | p->count -= p->pc_count; | |
3213 | p->pc_count = 0; | |
3214 | if (p->count == 0) | |
3215 | *pp = p->next; | |
3216 | else | |
3217 | pp = &p->next; | |
3218 | } | |
3219 | } | |
3220 | ||
3221 | if (eh->dyn_relocs != NULL | |
3222 | && h->root.type == bfd_link_hash_undefweak) | |
3223 | { | |
3224 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
3225 | eh->dyn_relocs = NULL; | |
3226 | ||
3227 | /* Make sure undefined weak symbols are output as a dynamic | |
3228 | symbol in PIEs. */ | |
3229 | else if (h->dynindx == -1 | |
3230 | && !h->forced_local) | |
3231 | { | |
3232 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
3233 | return FALSE; | |
3234 | } | |
3235 | } | |
3236 | } | |
3237 | ||
3238 | /* Finally, allocate space. */ | |
3239 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
3240 | { | |
3241 | asection *sreloc; | |
3242 | ||
3243 | sreloc = elf_section_data (p->sec)->sreloc; | |
3244 | ||
3245 | BFD_ASSERT (sreloc != NULL); | |
3246 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
3247 | } | |
3248 | ||
3249 | return TRUE; | |
3250 | } | |
3251 | ||
3252 | /* Find any dynamic relocs that apply to read-only sections. */ | |
3253 | ||
3254 | static bfd_boolean | |
3255 | elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) | |
3256 | { | |
3257 | struct elf32_tic6x_link_hash_entry *eh; | |
3258 | struct elf_dyn_relocs *p; | |
3259 | ||
ac145307 BS |
3260 | eh = (struct elf32_tic6x_link_hash_entry *) h; |
3261 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
3262 | { | |
3263 | asection *s = p->sec->output_section; | |
3264 | ||
3265 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
3266 | { | |
3267 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
3268 | ||
3269 | info->flags |= DF_TEXTREL; | |
3270 | ||
3271 | /* Not an error, just cut short the traversal. */ | |
3272 | return FALSE; | |
3273 | } | |
3274 | } | |
3275 | return TRUE; | |
3276 | } | |
3277 | ||
3278 | /* Set the sizes of the dynamic sections. */ | |
3279 | ||
3280 | static bfd_boolean | |
3281 | elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) | |
3282 | { | |
3283 | struct elf32_tic6x_link_hash_table *htab; | |
3284 | bfd *dynobj; | |
3285 | asection *s; | |
3286 | bfd_boolean relocs; | |
3287 | bfd *ibfd; | |
3288 | ||
3289 | htab = elf32_tic6x_hash_table (info); | |
3290 | dynobj = htab->elf.dynobj; | |
3291 | if (dynobj == NULL) | |
3292 | abort (); | |
3293 | ||
3294 | if (htab->elf.dynamic_sections_created) | |
3295 | { | |
3296 | /* Set the contents of the .interp section to the interpreter. */ | |
3297 | if (info->executable) | |
3298 | { | |
3d4d4302 | 3299 | s = bfd_get_linker_section (dynobj, ".interp"); |
ac145307 BS |
3300 | if (s == NULL) |
3301 | abort (); | |
3302 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
3303 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
3304 | } | |
3305 | } | |
3306 | ||
3307 | /* Set up .got offsets for local syms, and space for local dynamic | |
3308 | relocs. */ | |
3309 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
3310 | { | |
3311 | bfd_signed_vma *local_got; | |
3312 | bfd_signed_vma *end_local_got; | |
3313 | char *local_tls_type; | |
3314 | bfd_vma *local_tlsdesc_gotent; | |
3315 | bfd_size_type locsymcount; | |
3316 | Elf_Internal_Shdr *symtab_hdr; | |
3317 | asection *srel; | |
3318 | ||
3319 | for (s = ibfd->sections; s != NULL; s = s->next) | |
3320 | { | |
3321 | struct elf_dyn_relocs *p; | |
3322 | ||
3323 | for (p = ((struct elf_dyn_relocs *) | |
3324 | elf_section_data (s)->local_dynrel); | |
3325 | p != NULL; | |
3326 | p = p->next) | |
3327 | { | |
3328 | if (!bfd_is_abs_section (p->sec) | |
3329 | && bfd_is_abs_section (p->sec->output_section)) | |
3330 | { | |
3331 | /* Input section has been discarded, either because | |
3332 | it is a copy of a linkonce section or due to | |
3333 | linker script /DISCARD/, so we'll be discarding | |
3334 | the relocs too. */ | |
3335 | } | |
3336 | else if (p->count != 0) | |
3337 | { | |
3338 | srel = elf_section_data (p->sec)->sreloc; | |
3339 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
3340 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
3341 | info->flags |= DF_TEXTREL; | |
3342 | } | |
3343 | } | |
3344 | } | |
3345 | ||
3346 | local_got = elf_local_got_refcounts (ibfd); | |
3347 | if (!local_got) | |
3348 | continue; | |
3349 | ||
3350 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
3351 | locsymcount = symtab_hdr->sh_info; | |
3352 | end_local_got = local_got + locsymcount; | |
3353 | s = htab->elf.sgot; | |
3354 | srel = htab->elf.srelgot; | |
3355 | for (; local_got < end_local_got; | |
3356 | ++local_got, ++local_tls_type, ++local_tlsdesc_gotent) | |
3357 | { | |
3358 | if (*local_got > 0) | |
3359 | { | |
3360 | *local_got = s->size; | |
3361 | s->size += 4; | |
3362 | ||
3363 | if (info->shared || elf32_tic6x_using_dsbt (output_bfd)) | |
3364 | { | |
3365 | srel->size += sizeof (Elf32_External_Rela); | |
3366 | } | |
3367 | } | |
3368 | else | |
3369 | *local_got = (bfd_vma) -1; | |
3370 | } | |
3371 | } | |
3372 | ||
3373 | /* Allocate global sym .plt and .got entries, and space for global | |
3374 | sym dynamic relocs. */ | |
3375 | elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info); | |
3376 | ||
3377 | /* We now have determined the sizes of the various dynamic sections. | |
3378 | Allocate memory for them. */ | |
3379 | relocs = FALSE; | |
3380 | for (s = dynobj->sections; s != NULL; s = s->next) | |
3381 | { | |
3382 | bfd_boolean strip_section = TRUE; | |
3383 | ||
3384 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
3385 | continue; | |
3386 | ||
3387 | if (s == htab->dsbt) | |
3388 | s->size = 4 * htab->params.dsbt_size; | |
3389 | else if (s == htab->elf.splt | |
3390 | || s == htab->elf.sgot | |
3391 | || s == htab->elf.sgotplt | |
3392 | || s == htab->sdynbss) | |
3393 | { | |
3394 | /* Strip this section if we don't need it; see the | |
3395 | comment below. */ | |
3396 | /* We'd like to strip these sections if they aren't needed, but if | |
3397 | we've exported dynamic symbols from them we must leave them. | |
3398 | It's too late to tell BFD to get rid of the symbols. */ | |
3399 | ||
3400 | if (htab->elf.hplt != NULL) | |
3401 | strip_section = FALSE; | |
3402 | ||
3403 | /* Round up the size of the PLT section to a multiple of 32. */ | |
3404 | if (s == htab->elf.splt && s->size > 0) | |
3405 | s->size = (s->size + 31) & ~(bfd_vma)31; | |
3406 | } | |
3407 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) | |
3408 | { | |
3409 | if (s->size != 0 | |
3410 | && s != htab->elf.srelplt) | |
3411 | relocs = TRUE; | |
3412 | ||
3413 | /* We use the reloc_count field as a counter if we need | |
3414 | to copy relocs into the output file. */ | |
3415 | s->reloc_count = 0; | |
3416 | } | |
3417 | else | |
3418 | { | |
3419 | /* It's not one of our sections, so don't allocate space. */ | |
3420 | continue; | |
3421 | } | |
3422 | ||
3423 | if (s->size == 0) | |
3424 | { | |
3425 | /* If we don't need this section, strip it from the | |
3426 | output file. This is mostly to handle .rel.bss and | |
3427 | .rel.plt. We must create both sections in | |
3428 | create_dynamic_sections, because they must be created | |
3429 | before the linker maps input sections to output | |
3430 | sections. The linker does that before | |
3431 | adjust_dynamic_symbol is called, and it is that | |
3432 | function which decides whether anything needs to go | |
3433 | into these sections. */ | |
3434 | if (strip_section) | |
3435 | s->flags |= SEC_EXCLUDE; | |
3436 | continue; | |
3437 | } | |
3438 | ||
3439 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
3440 | continue; | |
3441 | ||
3442 | /* Allocate memory for the section contents. We use bfd_zalloc | |
3443 | here in case unused entries are not reclaimed before the | |
3444 | section's contents are written out. This should not happen, | |
3445 | but this way if it does, we get a R_C6000_NONE reloc instead | |
3446 | of garbage. */ | |
3447 | s->contents = bfd_zalloc (dynobj, s->size); | |
3448 | if (s->contents == NULL) | |
3449 | return FALSE; | |
3450 | } | |
3451 | ||
3452 | if (htab->elf.dynamic_sections_created) | |
3453 | { | |
3454 | /* Add some entries to the .dynamic section. We fill in the | |
3455 | values later, in elf32_tic6x_finish_dynamic_sections, but we | |
3456 | must add the entries now so that we get the correct size for | |
3457 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
3458 | dynamic linker and used by the debugger. */ | |
3459 | #define add_dynamic_entry(TAG, VAL) \ | |
3460 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
3461 | ||
3462 | if (info->executable) | |
3463 | { | |
3464 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
3465 | return FALSE; | |
3466 | } | |
3467 | ||
3468 | if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0) | |
3469 | || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size) | |
3470 | || !add_dynamic_entry (DT_C6000_DSBT_INDEX, | |
3471 | htab->params.dsbt_index)) | |
3472 | return FALSE; | |
3473 | ||
3474 | if (htab->elf.splt->size != 0) | |
3475 | { | |
3476 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
3477 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
3478 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
3479 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
3480 | return FALSE; | |
3481 | } | |
3482 | ||
3483 | if (relocs) | |
3484 | { | |
3485 | if (!add_dynamic_entry (DT_RELA, 0) | |
3486 | || !add_dynamic_entry (DT_RELASZ, 0) | |
3487 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
3488 | return FALSE; | |
3489 | ||
3490 | /* If any dynamic relocs apply to a read-only section, | |
3491 | then we need a DT_TEXTREL entry. */ | |
3492 | if ((info->flags & DF_TEXTREL) == 0) | |
3493 | elf_link_hash_traverse (&htab->elf, | |
3494 | elf32_tic6x_readonly_dynrelocs, info); | |
3495 | ||
3496 | if ((info->flags & DF_TEXTREL) != 0) | |
3497 | { | |
3498 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
3499 | return FALSE; | |
3500 | } | |
3501 | } | |
3502 | } | |
3503 | #undef add_dynamic_entry | |
3504 | ||
3505 | return TRUE; | |
3506 | } | |
3507 | ||
3508 | /* This function is called after all the input files have been read, | |
3509 | and the input sections have been assigned to output sections. */ | |
3510 | ||
3511 | static bfd_boolean | |
3512 | elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info) | |
3513 | { | |
04c3a755 NS |
3514 | if (elf32_tic6x_using_dsbt (output_bfd) && !info->relocatable |
3515 | && !bfd_elf_stack_segment_size (output_bfd, info, | |
3516 | "__stacksize", DEFAULT_STACK_SIZE)) | |
3517 | return FALSE; | |
ac145307 BS |
3518 | |
3519 | return TRUE; | |
3520 | } | |
3521 | ||
3522 | static bfd_boolean | |
3523 | elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
3524 | struct bfd_link_info *info) | |
3525 | { | |
3526 | struct elf32_tic6x_link_hash_table *htab; | |
3527 | bfd *dynobj; | |
3528 | asection *sdyn; | |
3529 | ||
3530 | htab = elf32_tic6x_hash_table (info); | |
3531 | dynobj = htab->elf.dynobj; | |
3d4d4302 | 3532 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
ac145307 BS |
3533 | |
3534 | if (elf_hash_table (info)->dynamic_sections_created) | |
3535 | { | |
3536 | Elf32_External_Dyn * dyncon; | |
3537 | Elf32_External_Dyn * dynconend; | |
3538 | ||
3539 | BFD_ASSERT (sdyn != NULL); | |
3540 | ||
3541 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
3542 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
3543 | ||
3544 | for (; dyncon < dynconend; dyncon++) | |
3545 | { | |
3546 | Elf_Internal_Dyn dyn; | |
3547 | asection *s; | |
3548 | ||
3549 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
3550 | ||
3551 | switch (dyn.d_tag) | |
3552 | { | |
3553 | default: | |
3554 | break; | |
3555 | ||
3556 | case DT_C6000_DSBT_BASE: | |
3557 | s = htab->dsbt; | |
3558 | dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset); | |
3559 | break; | |
3560 | ||
3561 | case DT_PLTGOT: | |
3562 | s = htab->elf.sgotplt; | |
3563 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
3564 | break; | |
3565 | ||
3566 | case DT_JMPREL: | |
3567 | s = htab->elf.srelplt; | |
3568 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
3569 | break; | |
3570 | ||
3571 | case DT_PLTRELSZ: | |
3572 | s = htab->elf.srelplt; | |
3573 | dyn.d_un.d_val = s->size; | |
3574 | break; | |
3575 | } | |
3576 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3577 | } | |
3578 | ||
3579 | /* Fill in the first entry in the procedure linkage table. */ | |
3580 | if (htab->elf.splt && htab->elf.splt->size > 0) | |
3581 | { | |
3582 | bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma | |
3583 | + htab->elf.sgotplt->output_offset | |
3584 | - htab->dsbt->output_section->vma | |
3585 | - htab->dsbt->output_offset) / 4; | |
3586 | ||
3587 | /* ldw .D2T2 *+b14[$GOT(0)],b2 */ | |
3588 | bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e, | |
3589 | htab->elf.splt->contents); | |
3590 | /* ldw .D2T2 *+b14[$GOT(4)],b1 */ | |
3591 | bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e, | |
3592 | htab->elf.splt->contents + 4); | |
3593 | /* nop 3 */ | |
3594 | bfd_put_32 (output_bfd, 0x00004000, | |
3595 | htab->elf.splt->contents + 8); | |
3596 | /* b .s2 b2 */ | |
3597 | bfd_put_32 (output_bfd, 0x00080362, | |
3598 | htab->elf.splt->contents + 12); | |
3599 | /* nop 5 */ | |
3600 | bfd_put_32 (output_bfd, 0x00008000, | |
3601 | htab->elf.splt->contents + 16); | |
3602 | ||
3603 | elf_section_data (htab->elf.splt->output_section) | |
3604 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; | |
3605 | } | |
3606 | } | |
3607 | ||
3608 | return TRUE; | |
3609 | } | |
3610 | ||
3611 | /* Return address for Ith PLT stub in section PLT, for relocation REL | |
3612 | or (bfd_vma) -1 if it should not be included. */ | |
3613 | ||
3614 | static bfd_vma | |
3615 | elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt, | |
3616 | const arelent *rel ATTRIBUTE_UNUSED) | |
3617 | { | |
3618 | return plt->vma + (i + 1) * PLT_ENTRY_SIZE; | |
3619 | } | |
3620 | ||
3621 | static int | |
3622 | elf32_tic6x_obj_attrs_arg_type (int tag) | |
59e6276b | 3623 | { |
3cbd1c06 | 3624 | if (tag == Tag_ABI_compatibility) |
59e6276b | 3625 | return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL; |
87779176 JM |
3626 | else if (tag & 1) |
3627 | return ATTR_TYPE_FLAG_STR_VAL; | |
59e6276b | 3628 | else |
59e6276b JM |
3629 | return ATTR_TYPE_FLAG_INT_VAL; |
3630 | } | |
3631 | ||
87779176 JM |
3632 | static int |
3633 | elf32_tic6x_obj_attrs_order (int num) | |
3634 | { | |
3635 | if (num == LEAST_KNOWN_OBJ_ATTRIBUTE) | |
3636 | return Tag_ABI_conformance; | |
3637 | if ((num - 1) < Tag_ABI_conformance) | |
3638 | return num - 1; | |
3639 | return num; | |
3640 | } | |
3641 | ||
0547accf JM |
3642 | static bfd_boolean |
3643 | elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag) | |
3644 | { | |
3645 | if ((tag & 127) < 64) | |
3646 | { | |
3647 | _bfd_error_handler | |
3648 | (_("%B: error: unknown mandatory EABI object attribute %d"), | |
3649 | abfd, tag); | |
3650 | bfd_set_error (bfd_error_bad_value); | |
3651 | return FALSE; | |
3652 | } | |
3653 | else | |
3654 | { | |
3655 | _bfd_error_handler | |
3656 | (_("%B: warning: unknown EABI object attribute %d"), | |
3657 | abfd, tag); | |
3658 | return TRUE; | |
3659 | } | |
3660 | } | |
3661 | ||
75fa6dc1 | 3662 | /* Merge the Tag_ISA attribute values ARCH1 and ARCH2 |
59e6276b JM |
3663 | and return the merged value. At present, all merges succeed, so no |
3664 | return value for errors is defined. */ | |
3665 | ||
3666 | int | |
3667 | elf32_tic6x_merge_arch_attributes (int arch1, int arch2) | |
3668 | { | |
3669 | int min_arch, max_arch; | |
3670 | ||
3671 | min_arch = (arch1 < arch2 ? arch1 : arch2); | |
3672 | max_arch = (arch1 > arch2 ? arch1 : arch2); | |
3673 | ||
3674 | /* In most cases, the numerically greatest value is the correct | |
3675 | merged value, but merging C64 and C67 results in C674X. */ | |
75fa6dc1 JM |
3676 | if ((min_arch == C6XABI_Tag_ISA_C67X |
3677 | || min_arch == C6XABI_Tag_ISA_C67XP) | |
3678 | && (max_arch == C6XABI_Tag_ISA_C64X | |
3679 | || max_arch == C6XABI_Tag_ISA_C64XP)) | |
3680 | return C6XABI_Tag_ISA_C674X; | |
59e6276b JM |
3681 | |
3682 | return max_arch; | |
3683 | } | |
3684 | ||
87779176 JM |
3685 | /* Convert a Tag_ABI_array_object_alignment or |
3686 | Tag_ABI_array_object_align_expected tag value TAG to a | |
3687 | corresponding alignment value; return the alignment, or -1 for an | |
3688 | unknown tag value. */ | |
3689 | ||
3690 | static int | |
3691 | elf32_tic6x_tag_to_array_alignment (int tag) | |
3692 | { | |
3693 | switch (tag) | |
3694 | { | |
3695 | case 0: | |
3696 | return 8; | |
3697 | ||
3698 | case 1: | |
3699 | return 4; | |
3700 | ||
3701 | case 2: | |
3702 | return 16; | |
3703 | ||
3704 | default: | |
3705 | return -1; | |
3706 | } | |
3707 | } | |
3708 | ||
3709 | /* Convert a Tag_ABI_array_object_alignment or | |
3710 | Tag_ABI_array_object_align_expected alignment ALIGN to a | |
3711 | corresponding tag value; return the tag value. */ | |
3712 | ||
3713 | static int | |
3714 | elf32_tic6x_array_alignment_to_tag (int align) | |
3715 | { | |
3716 | switch (align) | |
3717 | { | |
3718 | case 8: | |
3719 | return 0; | |
3720 | ||
3721 | case 4: | |
3722 | return 1; | |
3723 | ||
3724 | case 16: | |
3725 | return 2; | |
3726 | ||
3727 | default: | |
3728 | abort (); | |
3729 | } | |
3730 | } | |
3731 | ||
59e6276b JM |
3732 | /* Merge attributes from IBFD and OBFD, returning TRUE if the merge |
3733 | succeeded, FALSE otherwise. */ | |
3734 | ||
3735 | static bfd_boolean | |
3736 | elf32_tic6x_merge_attributes (bfd *ibfd, bfd *obfd) | |
3737 | { | |
87779176 | 3738 | bfd_boolean result = TRUE; |
59e6276b JM |
3739 | obj_attribute *in_attr; |
3740 | obj_attribute *out_attr; | |
87779176 JM |
3741 | int i; |
3742 | int array_align_in, array_align_out, array_expect_in, array_expect_out; | |
59e6276b JM |
3743 | |
3744 | if (!elf_known_obj_attributes_proc (obfd)[0].i) | |
3745 | { | |
3746 | /* This is the first object. Copy the attributes. */ | |
3747 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
3748 | ||
3749 | out_attr = elf_known_obj_attributes_proc (obfd); | |
3750 | ||
3751 | /* Use the Tag_null value to indicate the attributes have been | |
3752 | initialized. */ | |
3753 | out_attr[0].i = 1; | |
3754 | ||
3755 | return TRUE; | |
3756 | } | |
3757 | ||
3758 | in_attr = elf_known_obj_attributes_proc (ibfd); | |
3759 | out_attr = elf_known_obj_attributes_proc (obfd); | |
3760 | ||
3761 | /* No specification yet for handling of unknown attributes, so just | |
3762 | ignore them and handle known ones. */ | |
59e6276b | 3763 | |
87779176 JM |
3764 | if (out_attr[Tag_ABI_stack_align_preserved].i |
3765 | < in_attr[Tag_ABI_stack_align_needed].i) | |
3766 | { | |
3767 | _bfd_error_handler | |
3768 | (_("error: %B requires more stack alignment than %B preserves"), | |
3769 | ibfd, obfd); | |
3770 | result = FALSE; | |
3771 | } | |
3772 | if (in_attr[Tag_ABI_stack_align_preserved].i | |
3773 | < out_attr[Tag_ABI_stack_align_needed].i) | |
3774 | { | |
3775 | _bfd_error_handler | |
3776 | (_("error: %B requires more stack alignment than %B preserves"), | |
3777 | obfd, ibfd); | |
3778 | result = FALSE; | |
3779 | } | |
3780 | ||
3781 | array_align_in = elf32_tic6x_tag_to_array_alignment | |
3782 | (in_attr[Tag_ABI_array_object_alignment].i); | |
3783 | if (array_align_in == -1) | |
3784 | { | |
3785 | _bfd_error_handler | |
3786 | (_("error: unknown Tag_ABI_array_object_alignment value in %B"), | |
3787 | ibfd); | |
3788 | result = FALSE; | |
3789 | } | |
3790 | array_align_out = elf32_tic6x_tag_to_array_alignment | |
3791 | (out_attr[Tag_ABI_array_object_alignment].i); | |
3792 | if (array_align_out == -1) | |
3793 | { | |
3794 | _bfd_error_handler | |
3795 | (_("error: unknown Tag_ABI_array_object_alignment value in %B"), | |
3796 | obfd); | |
3797 | result = FALSE; | |
3798 | } | |
3799 | array_expect_in = elf32_tic6x_tag_to_array_alignment | |
3800 | (in_attr[Tag_ABI_array_object_align_expected].i); | |
3801 | if (array_expect_in == -1) | |
3802 | { | |
3803 | _bfd_error_handler | |
3804 | (_("error: unknown Tag_ABI_array_object_align_expected value in %B"), | |
3805 | ibfd); | |
3806 | result = FALSE; | |
3807 | } | |
3808 | array_expect_out = elf32_tic6x_tag_to_array_alignment | |
3809 | (out_attr[Tag_ABI_array_object_align_expected].i); | |
3810 | if (array_expect_out == -1) | |
3811 | { | |
3812 | _bfd_error_handler | |
3813 | (_("error: unknown Tag_ABI_array_object_align_expected value in %B"), | |
3814 | obfd); | |
3815 | result = FALSE; | |
3816 | } | |
3817 | ||
3818 | if (array_align_out < array_expect_in) | |
3819 | { | |
3820 | _bfd_error_handler | |
3821 | (_("error: %B requires more array alignment than %B preserves"), | |
3822 | ibfd, obfd); | |
3823 | result = FALSE; | |
3824 | } | |
3825 | if (array_align_in < array_expect_out) | |
b5593623 JM |
3826 | { |
3827 | _bfd_error_handler | |
87779176 | 3828 | (_("error: %B requires more array alignment than %B preserves"), |
b5593623 | 3829 | obfd, ibfd); |
87779176 | 3830 | result = FALSE; |
b5593623 | 3831 | } |
87779176 JM |
3832 | |
3833 | for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++) | |
3834 | { | |
3835 | switch (i) | |
3836 | { | |
3837 | case Tag_ISA: | |
3838 | out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i, | |
3839 | out_attr[i].i); | |
3840 | break; | |
3841 | ||
3842 | case Tag_ABI_wchar_t: | |
3843 | if (out_attr[i].i == 0) | |
3844 | out_attr[i].i = in_attr[i].i; | |
3845 | if (out_attr[i].i != 0 | |
3846 | && in_attr[i].i != 0 | |
3847 | && out_attr[i].i != in_attr[i].i) | |
3848 | { | |
3849 | _bfd_error_handler | |
3850 | (_("warning: %B and %B differ in wchar_t size"), obfd, ibfd); | |
3851 | } | |
3852 | break; | |
3853 | ||
3854 | case Tag_ABI_stack_align_needed: | |
3855 | if (out_attr[i].i < in_attr[i].i) | |
3856 | out_attr[i].i = in_attr[i].i; | |
3857 | break; | |
3858 | ||
3859 | case Tag_ABI_stack_align_preserved: | |
3860 | if (out_attr[i].i > in_attr[i].i) | |
3861 | out_attr[i].i = in_attr[i].i; | |
3862 | break; | |
3863 | ||
3864 | case Tag_ABI_DSBT: | |
3865 | if (out_attr[i].i != in_attr[i].i) | |
3866 | { | |
3867 | _bfd_error_handler | |
3868 | (_("warning: %B and %B differ in whether code is " | |
3869 | "compiled for DSBT"), | |
3870 | obfd, ibfd); | |
3871 | } | |
3872 | break; | |
3873 | ||
87779176 | 3874 | case Tag_ABI_PIC: |
c6a8f6e0 BS |
3875 | case Tag_ABI_PID: |
3876 | if (out_attr[i].i > in_attr[i].i) | |
3877 | out_attr[i].i = in_attr[i].i; | |
87779176 JM |
3878 | break; |
3879 | ||
3880 | case Tag_ABI_array_object_alignment: | |
3881 | if (array_align_out != -1 | |
3882 | && array_align_in != -1 | |
3883 | && array_align_out > array_align_in) | |
3884 | out_attr[i].i | |
3885 | = elf32_tic6x_array_alignment_to_tag (array_align_in); | |
3886 | break; | |
3887 | ||
3888 | case Tag_ABI_array_object_align_expected: | |
3889 | if (array_expect_out != -1 | |
3890 | && array_expect_in != -1 | |
3891 | && array_expect_out < array_expect_in) | |
3892 | out_attr[i].i | |
3893 | = elf32_tic6x_array_alignment_to_tag (array_expect_in); | |
3894 | break; | |
3895 | ||
3896 | case Tag_ABI_conformance: | |
3897 | /* Merging for this attribute is not specified. As on ARM, | |
3898 | treat a missing attribute as no claim to conform and only | |
3899 | merge identical values. */ | |
3900 | if (out_attr[i].s == NULL | |
3901 | || in_attr[i].s == NULL | |
3902 | || strcmp (out_attr[i].s, | |
3903 | in_attr[i].s) != 0) | |
3904 | out_attr[i].s = NULL; | |
3905 | break; | |
3906 | ||
0547accf JM |
3907 | case Tag_ABI_compatibility: |
3908 | /* Merged in _bfd_elf_merge_object_attributes. */ | |
3909 | break; | |
3910 | ||
87779176 | 3911 | default: |
0547accf JM |
3912 | result |
3913 | = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i); | |
87779176 JM |
3914 | break; |
3915 | } | |
3916 | ||
3917 | if (in_attr[i].type && !out_attr[i].type) | |
3918 | out_attr[i].type = in_attr[i].type; | |
3919 | } | |
3920 | ||
3cbd1c06 JM |
3921 | /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */ |
3922 | if (!_bfd_elf_merge_object_attributes (ibfd, obfd)) | |
3923 | return FALSE; | |
59e6276b | 3924 | |
0547accf JM |
3925 | result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd); |
3926 | ||
87779176 | 3927 | return result; |
59e6276b JM |
3928 | } |
3929 | ||
3930 | static bfd_boolean | |
3931 | elf32_tic6x_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
3932 | { | |
3933 | if (!_bfd_generic_verify_endian_match (ibfd, obfd)) | |
3934 | return FALSE; | |
3935 | ||
b781d74f JM |
3936 | if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (obfd)) |
3937 | return TRUE; | |
3938 | ||
59e6276b JM |
3939 | if (!elf32_tic6x_merge_attributes (ibfd, obfd)) |
3940 | return FALSE; | |
3941 | ||
3942 | return TRUE; | |
3943 | } | |
3944 | ||
fbd9ad90 PB |
3945 | /* Add a new unwind edit to the list described by HEAD, TAIL. If TINDEX is zero, |
3946 | adds the edit to the start of the list. (The list must be built in order of | |
3947 | ascending TINDEX: the function's callers are primarily responsible for | |
3948 | maintaining that condition). */ | |
3949 | ||
3950 | static void | |
3951 | elf32_tic6x_add_unwind_table_edit (tic6x_unwind_table_edit **head, | |
3952 | tic6x_unwind_table_edit **tail, | |
3953 | tic6x_unwind_edit_type type, | |
3954 | asection *linked_section, | |
3955 | unsigned int tindex) | |
3956 | { | |
3957 | tic6x_unwind_table_edit *new_edit = (tic6x_unwind_table_edit *) | |
3958 | xmalloc (sizeof (tic6x_unwind_table_edit)); | |
68ffbac6 | 3959 | |
fbd9ad90 PB |
3960 | new_edit->type = type; |
3961 | new_edit->linked_section = linked_section; | |
3962 | new_edit->index = tindex; | |
68ffbac6 | 3963 | |
fbd9ad90 PB |
3964 | if (tindex > 0) |
3965 | { | |
3966 | new_edit->next = NULL; | |
3967 | ||
3968 | if (*tail) | |
3969 | (*tail)->next = new_edit; | |
3970 | ||
3971 | (*tail) = new_edit; | |
3972 | ||
3973 | if (!*head) | |
3974 | (*head) = new_edit; | |
3975 | } | |
3976 | else | |
3977 | { | |
3978 | new_edit->next = *head; | |
3979 | ||
3980 | if (!*tail) | |
3981 | *tail = new_edit; | |
3982 | ||
3983 | *head = new_edit; | |
3984 | } | |
3985 | } | |
3986 | ||
3987 | static _tic6x_elf_section_data * | |
3988 | get_tic6x_elf_section_data (asection * sec) | |
3989 | { | |
3990 | if (sec && sec->owner && is_tic6x_elf (sec->owner)) | |
3991 | return elf32_tic6x_section_data (sec); | |
3992 | else | |
3993 | return NULL; | |
3994 | } | |
3995 | ||
3996 | ||
3997 | /* Increase the size of EXIDX_SEC by ADJUST bytes. ADJUST must be negative. */ | |
3998 | static void | |
3999 | elf32_tic6x_adjust_exidx_size (asection *exidx_sec, int adjust) | |
4000 | { | |
4001 | asection *out_sec; | |
4002 | ||
4003 | if (!exidx_sec->rawsize) | |
4004 | exidx_sec->rawsize = exidx_sec->size; | |
4005 | ||
4006 | bfd_set_section_size (exidx_sec->owner, exidx_sec, exidx_sec->size + adjust); | |
4007 | out_sec = exidx_sec->output_section; | |
4008 | /* Adjust size of output section. */ | |
4009 | bfd_set_section_size (out_sec->owner, out_sec, out_sec->size +adjust); | |
4010 | } | |
4011 | ||
4012 | /* Insert an EXIDX_CANTUNWIND marker at the end of a section. */ | |
4013 | static void | |
4014 | elf32_tic6x_insert_cantunwind_after (asection *text_sec, asection *exidx_sec) | |
4015 | { | |
4016 | struct _tic6x_elf_section_data *exidx_data; | |
4017 | ||
4018 | exidx_data = get_tic6x_elf_section_data (exidx_sec); | |
4019 | elf32_tic6x_add_unwind_table_edit ( | |
4020 | &exidx_data->u.exidx.unwind_edit_list, | |
4021 | &exidx_data->u.exidx.unwind_edit_tail, | |
4022 | INSERT_EXIDX_CANTUNWIND_AT_END, text_sec, UINT_MAX); | |
4023 | ||
4024 | elf32_tic6x_adjust_exidx_size (exidx_sec, 8); | |
4025 | } | |
4026 | ||
4027 | /* Scan .cx6abi.exidx tables, and create a list describing edits which | |
4028 | should be made to those tables, such that: | |
68ffbac6 | 4029 | |
fbd9ad90 PB |
4030 | 1. Regions without unwind data are marked with EXIDX_CANTUNWIND entries. |
4031 | 2. Duplicate entries are merged together (EXIDX_CANTUNWIND, or unwind | |
4032 | codes which have been inlined into the index). | |
4033 | ||
4034 | If MERGE_EXIDX_ENTRIES is false, duplicate entries are not merged. | |
4035 | ||
4036 | The edits are applied when the tables are written | |
4037 | (in elf32_tic6x_write_section). | |
4038 | */ | |
4039 | ||
4040 | bfd_boolean | |
4041 | elf32_tic6x_fix_exidx_coverage (asection **text_section_order, | |
4042 | unsigned int num_text_sections, | |
4043 | struct bfd_link_info *info, | |
4044 | bfd_boolean merge_exidx_entries) | |
4045 | { | |
4046 | bfd *inp; | |
4047 | unsigned int last_second_word = 0, i; | |
4048 | asection *last_exidx_sec = NULL; | |
4049 | asection *last_text_sec = NULL; | |
4050 | int last_unwind_type = -1; | |
4051 | ||
4052 | /* Walk over all EXIDX sections, and create backlinks from the corrsponding | |
4053 | text sections. */ | |
4054 | for (inp = info->input_bfds; inp != NULL; inp = inp->link_next) | |
4055 | { | |
4056 | asection *sec; | |
68ffbac6 | 4057 | |
fbd9ad90 PB |
4058 | for (sec = inp->sections; sec != NULL; sec = sec->next) |
4059 | { | |
4060 | struct bfd_elf_section_data *elf_sec = elf_section_data (sec); | |
4061 | Elf_Internal_Shdr *hdr = &elf_sec->this_hdr; | |
68ffbac6 | 4062 | |
fbd9ad90 PB |
4063 | if (!hdr || hdr->sh_type != SHT_C6000_UNWIND) |
4064 | continue; | |
68ffbac6 | 4065 | |
fbd9ad90 PB |
4066 | if (elf_sec->linked_to) |
4067 | { | |
4068 | Elf_Internal_Shdr *linked_hdr | |
4069 | = &elf_section_data (elf_sec->linked_to)->this_hdr; | |
4070 | struct _tic6x_elf_section_data *linked_sec_tic6x_data | |
4071 | = get_tic6x_elf_section_data (linked_hdr->bfd_section); | |
4072 | ||
4073 | if (linked_sec_tic6x_data == NULL) | |
4074 | continue; | |
4075 | ||
4076 | /* Link this .c6xabi.exidx section back from the | |
4077 | text section it describes. */ | |
4078 | linked_sec_tic6x_data->u.text.tic6x_exidx_sec = sec; | |
4079 | } | |
4080 | } | |
4081 | } | |
4082 | ||
4083 | /* Walk all text sections in order of increasing VMA. Eilminate duplicate | |
4084 | index table entries (EXIDX_CANTUNWIND and inlined unwind opcodes), | |
4085 | and add EXIDX_CANTUNWIND entries for sections with no unwind table data. */ | |
4086 | ||
4087 | for (i = 0; i < num_text_sections; i++) | |
4088 | { | |
4089 | asection *sec = text_section_order[i]; | |
4090 | asection *exidx_sec; | |
4091 | struct _tic6x_elf_section_data *tic6x_data | |
4092 | = get_tic6x_elf_section_data (sec); | |
4093 | struct _tic6x_elf_section_data *exidx_data; | |
4094 | bfd_byte *contents = NULL; | |
4095 | int deleted_exidx_bytes = 0; | |
4096 | bfd_vma j; | |
4097 | tic6x_unwind_table_edit *unwind_edit_head = NULL; | |
4098 | tic6x_unwind_table_edit *unwind_edit_tail = NULL; | |
4099 | Elf_Internal_Shdr *hdr; | |
4100 | bfd *ibfd; | |
4101 | ||
4102 | if (tic6x_data == NULL) | |
4103 | continue; | |
4104 | ||
4105 | exidx_sec = tic6x_data->u.text.tic6x_exidx_sec; | |
4106 | if (exidx_sec == NULL) | |
4107 | { | |
4108 | /* Section has no unwind data. */ | |
4109 | if (last_unwind_type == 0 || !last_exidx_sec) | |
4110 | continue; | |
4111 | ||
4112 | /* Ignore zero sized sections. */ | |
4113 | if (sec->size == 0) | |
4114 | continue; | |
4115 | ||
4116 | elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec); | |
4117 | last_unwind_type = 0; | |
4118 | continue; | |
4119 | } | |
4120 | ||
4121 | /* Skip /DISCARD/ sections. */ | |
4122 | if (bfd_is_abs_section (exidx_sec->output_section)) | |
4123 | continue; | |
4124 | ||
4125 | hdr = &elf_section_data (exidx_sec)->this_hdr; | |
4126 | if (hdr->sh_type != SHT_C6000_UNWIND) | |
4127 | continue; | |
68ffbac6 | 4128 | |
fbd9ad90 PB |
4129 | exidx_data = get_tic6x_elf_section_data (exidx_sec); |
4130 | if (exidx_data == NULL) | |
4131 | continue; | |
68ffbac6 | 4132 | |
fbd9ad90 | 4133 | ibfd = exidx_sec->owner; |
68ffbac6 | 4134 | |
fbd9ad90 PB |
4135 | if (hdr->contents != NULL) |
4136 | contents = hdr->contents; | |
4137 | else if (! bfd_malloc_and_get_section (ibfd, exidx_sec, &contents)) | |
4138 | /* An error? */ | |
4139 | continue; | |
4140 | ||
4141 | for (j = 0; j < hdr->sh_size; j += 8) | |
4142 | { | |
4143 | unsigned int second_word = bfd_get_32 (ibfd, contents + j + 4); | |
4144 | int unwind_type; | |
4145 | int elide = 0; | |
4146 | ||
4147 | /* An EXIDX_CANTUNWIND entry. */ | |
4148 | if (second_word == 1) | |
4149 | { | |
4150 | if (last_unwind_type == 0) | |
4151 | elide = 1; | |
4152 | unwind_type = 0; | |
4153 | } | |
4154 | /* Inlined unwinding data. Merge if equal to previous. */ | |
4155 | else if ((second_word & 0x80000000) != 0) | |
4156 | { | |
4157 | if (merge_exidx_entries | |
4158 | && last_second_word == second_word | |
4159 | && last_unwind_type == 1) | |
4160 | elide = 1; | |
4161 | unwind_type = 1; | |
4162 | last_second_word = second_word; | |
4163 | } | |
4164 | /* Normal table entry. In theory we could merge these too, | |
4165 | but duplicate entries are likely to be much less common. */ | |
4166 | else | |
4167 | unwind_type = 2; | |
4168 | ||
4169 | if (elide) | |
4170 | { | |
4171 | elf32_tic6x_add_unwind_table_edit (&unwind_edit_head, | |
4172 | &unwind_edit_tail, DELETE_EXIDX_ENTRY, NULL, j / 8); | |
4173 | ||
4174 | deleted_exidx_bytes += 8; | |
4175 | } | |
4176 | ||
4177 | last_unwind_type = unwind_type; | |
4178 | } | |
4179 | ||
4180 | /* Free contents if we allocated it ourselves. */ | |
4181 | if (contents != hdr->contents) | |
4182 | free (contents); | |
4183 | ||
4184 | /* Record edits to be applied later (in elf32_tic6x_write_section). */ | |
4185 | exidx_data->u.exidx.unwind_edit_list = unwind_edit_head; | |
4186 | exidx_data->u.exidx.unwind_edit_tail = unwind_edit_tail; | |
68ffbac6 | 4187 | |
fbd9ad90 PB |
4188 | if (deleted_exidx_bytes > 0) |
4189 | elf32_tic6x_adjust_exidx_size (exidx_sec, -deleted_exidx_bytes); | |
4190 | ||
4191 | last_exidx_sec = exidx_sec; | |
4192 | last_text_sec = sec; | |
4193 | } | |
4194 | ||
4195 | /* Add terminating CANTUNWIND entry. */ | |
4196 | if (last_exidx_sec && last_unwind_type != 0) | |
4197 | elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec); | |
4198 | ||
4199 | return TRUE; | |
4200 | } | |
4201 | ||
4202 | /* Add ADDEND to lower 31 bits of VAL, leaving other bits unmodified. */ | |
4203 | ||
4204 | static unsigned long | |
4205 | elf32_tic6x_add_low31 (unsigned long val, bfd_vma addend) | |
4206 | { | |
4207 | return (val & ~0x7ffffffful) | ((val + addend) & 0x7ffffffful); | |
4208 | } | |
4209 | ||
4210 | /* Copy an .c6xabi.exidx table entry, adding OFFSET to (applied) PREL31 | |
4211 | relocations. OFFSET is in bytes, and will be scaled before encoding. */ | |
4212 | ||
4213 | ||
4214 | static void | |
4215 | elf32_tic6x_copy_exidx_entry (bfd *output_bfd, bfd_byte *to, bfd_byte *from, | |
4216 | bfd_vma offset) | |
4217 | { | |
4218 | unsigned long first_word = bfd_get_32 (output_bfd, from); | |
4219 | unsigned long second_word = bfd_get_32 (output_bfd, from + 4); | |
4220 | ||
4221 | offset >>= 1; | |
4222 | /* High bit of first word is supposed to be zero. */ | |
4223 | if ((first_word & 0x80000000ul) == 0) | |
4224 | first_word = elf32_tic6x_add_low31 (first_word, offset); | |
68ffbac6 | 4225 | |
fbd9ad90 PB |
4226 | /* If the high bit of the first word is clear, and the bit pattern is not 0x1 |
4227 | (EXIDX_CANTUNWIND), this is an offset to an .c6xabi.extab entry. */ | |
4228 | if ((second_word != 0x1) && ((second_word & 0x80000000ul) == 0)) | |
4229 | second_word = elf32_tic6x_add_low31 (second_word, offset); | |
68ffbac6 | 4230 | |
fbd9ad90 PB |
4231 | bfd_put_32 (output_bfd, first_word, to); |
4232 | bfd_put_32 (output_bfd, second_word, to + 4); | |
4233 | } | |
4234 | ||
4235 | /* Do the actual mangling of exception index tables. */ | |
4236 | ||
4237 | static bfd_boolean | |
4238 | elf32_tic6x_write_section (bfd *output_bfd, | |
4239 | struct bfd_link_info *link_info, | |
4240 | asection *sec, | |
4241 | bfd_byte *contents) | |
4242 | { | |
4243 | _tic6x_elf_section_data *tic6x_data; | |
4244 | struct elf32_tic6x_link_hash_table *globals | |
4245 | = elf32_tic6x_hash_table (link_info); | |
4246 | bfd_vma offset = sec->output_section->vma + sec->output_offset; | |
4247 | ||
4248 | if (globals == NULL) | |
4249 | return FALSE; | |
4250 | ||
4251 | /* If this section has not been allocated an _tic6x_elf_section_data | |
4252 | structure then we cannot record anything. */ | |
4253 | tic6x_data = get_tic6x_elf_section_data (sec); | |
4254 | if (tic6x_data == NULL) | |
4255 | return FALSE; | |
4256 | ||
4257 | if (tic6x_data->elf.this_hdr.sh_type != SHT_C6000_UNWIND) | |
4258 | return FALSE; | |
4259 | ||
4260 | tic6x_unwind_table_edit *edit_node | |
4261 | = tic6x_data->u.exidx.unwind_edit_list; | |
4262 | /* Now, sec->size is the size of the section we will write. The original | |
4263 | size (before we merged duplicate entries and inserted EXIDX_CANTUNWIND | |
4264 | markers) was sec->rawsize. (This isn't the case if we perform no | |
4265 | edits, then rawsize will be zero and we should use size). */ | |
4266 | bfd_byte *edited_contents = (bfd_byte *) bfd_malloc (sec->size); | |
4267 | unsigned int input_size = sec->rawsize ? sec->rawsize : sec->size; | |
4268 | unsigned int in_index, out_index; | |
4269 | bfd_vma add_to_offsets = 0; | |
4270 | ||
4271 | for (in_index = 0, out_index = 0; in_index * 8 < input_size || edit_node;) | |
4272 | { | |
4273 | if (edit_node) | |
4274 | { | |
4275 | unsigned int edit_index = edit_node->index; | |
68ffbac6 | 4276 | |
fbd9ad90 PB |
4277 | if (in_index < edit_index && in_index * 8 < input_size) |
4278 | { | |
4279 | elf32_tic6x_copy_exidx_entry (output_bfd, | |
4280 | edited_contents + out_index * 8, | |
4281 | contents + in_index * 8, add_to_offsets); | |
4282 | out_index++; | |
4283 | in_index++; | |
4284 | } | |
4285 | else if (in_index == edit_index | |
4286 | || (in_index * 8 >= input_size | |
4287 | && edit_index == UINT_MAX)) | |
4288 | { | |
4289 | switch (edit_node->type) | |
4290 | { | |
4291 | case DELETE_EXIDX_ENTRY: | |
4292 | in_index++; | |
4293 | add_to_offsets += 8; | |
4294 | break; | |
68ffbac6 | 4295 | |
fbd9ad90 PB |
4296 | case INSERT_EXIDX_CANTUNWIND_AT_END: |
4297 | { | |
4298 | asection *text_sec = edit_node->linked_section; | |
4299 | bfd_vma text_offset = text_sec->output_section->vma | |
4300 | + text_sec->output_offset | |
4301 | + text_sec->size; | |
4302 | bfd_vma exidx_offset = offset + out_index * 8; | |
4303 | unsigned long prel31_offset; | |
4304 | ||
4305 | /* Note: this is meant to be equivalent to an | |
4306 | R_C6000_PREL31 relocation. These synthetic | |
4307 | EXIDX_CANTUNWIND markers are not relocated by the | |
4308 | usual BFD method. */ | |
4309 | prel31_offset = ((text_offset - exidx_offset) >> 1) | |
4310 | & 0x7ffffffful; | |
4311 | ||
4312 | /* First address we can't unwind. */ | |
4313 | bfd_put_32 (output_bfd, prel31_offset, | |
4314 | &edited_contents[out_index * 8]); | |
4315 | ||
4316 | /* Code for EXIDX_CANTUNWIND. */ | |
4317 | bfd_put_32 (output_bfd, 0x1, | |
4318 | &edited_contents[out_index * 8 + 4]); | |
4319 | ||
4320 | out_index++; | |
4321 | add_to_offsets -= 8; | |
4322 | } | |
4323 | break; | |
4324 | } | |
68ffbac6 | 4325 | |
fbd9ad90 PB |
4326 | edit_node = edit_node->next; |
4327 | } | |
4328 | } | |
4329 | else | |
4330 | { | |
4331 | /* No more edits, copy remaining entries verbatim. */ | |
4332 | elf32_tic6x_copy_exidx_entry (output_bfd, | |
4333 | edited_contents + out_index * 8, | |
4334 | contents + in_index * 8, add_to_offsets); | |
4335 | out_index++; | |
4336 | in_index++; | |
4337 | } | |
4338 | } | |
4339 | ||
4340 | if (!(sec->flags & SEC_EXCLUDE) && !(sec->flags & SEC_NEVER_LOAD)) | |
4341 | bfd_set_section_contents (output_bfd, sec->output_section, | |
4342 | edited_contents, | |
4343 | (file_ptr) sec->output_offset, sec->size); | |
4344 | ||
4345 | return TRUE; | |
4346 | } | |
4347 | ||
2a616379 BS |
4348 | static void |
4349 | elf32_tic6x_set_osabi (bfd *abfd, struct bfd_link_info *link_info) | |
4350 | { | |
dc076558 | 4351 | if (link_info != NULL && link_info->relocatable) |
2a616379 BS |
4352 | return; |
4353 | _bfd_elf_set_osabi (abfd, link_info); | |
4354 | } | |
4355 | ||
40b36596 JM |
4356 | #define TARGET_LITTLE_SYM bfd_elf32_tic6x_le_vec |
4357 | #define TARGET_LITTLE_NAME "elf32-tic6x-le" | |
4358 | #define TARGET_BIG_SYM bfd_elf32_tic6x_be_vec | |
4359 | #define TARGET_BIG_NAME "elf32-tic6x-be" | |
4360 | #define ELF_ARCH bfd_arch_tic6x | |
ae95ffa6 | 4361 | #define ELF_TARGET_ID TIC6X_ELF_DATA |
40b36596 | 4362 | #define ELF_MACHINE_CODE EM_TI_C6000 |
ac145307 | 4363 | #define ELF_MAXPAGESIZE 0x1000 |
40b36596 JM |
4364 | #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup |
4365 | #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup | |
59e6276b | 4366 | #define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data |
41820509 | 4367 | #define bfd_elf32_mkobject elf32_tic6x_mkobject |
ac145307 | 4368 | #define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create |
41820509 | 4369 | #define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook |
04c3a755 | 4370 | #define elf_backend_stack_align 8 |
40b36596 JM |
4371 | #define elf_backend_can_gc_sections 1 |
4372 | #define elf_backend_default_use_rela_p 1 | |
4373 | #define elf_backend_may_use_rel_p 1 | |
4374 | #define elf_backend_may_use_rela_p 1 | |
59e6276b | 4375 | #define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type |
0547accf | 4376 | #define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown |
87779176 | 4377 | #define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order |
75fa6dc1 | 4378 | #define elf_backend_obj_attrs_section ".c6xabi.attributes" |
59e6276b JM |
4379 | #define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES |
4380 | #define elf_backend_obj_attrs_vendor "c6xabi" | |
ac145307 BS |
4381 | #define elf_backend_can_refcount 1 |
4382 | #define elf_backend_want_got_plt 1 | |
4383 | #define elf_backend_want_dynbss 1 | |
4384 | #define elf_backend_plt_readonly 1 | |
40b36596 | 4385 | #define elf_backend_rela_normal 1 |
ac145307 | 4386 | #define elf_backend_got_header_size 8 |
1bce6bd8 | 4387 | #define elf_backend_fake_sections elf32_tic6x_fake_sections |
ac145307 | 4388 | #define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook |
9cf0e282 | 4389 | #define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections |
ac145307 BS |
4390 | #define elf_backend_create_dynamic_sections \ |
4391 | elf32_tic6x_create_dynamic_sections | |
4392 | #define elf_backend_adjust_dynamic_symbol \ | |
4393 | elf32_tic6x_adjust_dynamic_symbol | |
4394 | #define elf_backend_check_relocs elf32_tic6x_check_relocs | |
4395 | #define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook | |
4396 | #define elf_backend_symbol_processing elf32_tic6x_symbol_processing | |
4397 | #define elf_backend_link_output_symbol_hook \ | |
4398 | elf32_tic6x_link_output_symbol_hook | |
4399 | #define elf_backend_section_from_bfd_section \ | |
4400 | elf32_tic6x_section_from_bfd_section | |
40b36596 | 4401 | #define elf_backend_relocate_section elf32_tic6x_relocate_section |
2a616379 | 4402 | #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible |
ac145307 BS |
4403 | #define elf_backend_finish_dynamic_symbol \ |
4404 | elf32_tic6x_finish_dynamic_symbol | |
4405 | #define elf_backend_always_size_sections \ | |
4406 | elf32_tic6x_always_size_sections | |
4407 | #define elf_backend_size_dynamic_sections \ | |
4408 | elf32_tic6x_size_dynamic_sections | |
4409 | #define elf_backend_finish_dynamic_sections \ | |
4410 | elf32_tic6x_finish_dynamic_sections | |
c6a8f6e0 BS |
4411 | #define bfd_elf32_bfd_final_link \ |
4412 | elf32_tic6x_final_link | |
fbd9ad90 | 4413 | #define elf_backend_write_section elf32_tic6x_write_section |
40b36596 | 4414 | #define elf_info_to_howto elf32_tic6x_info_to_howto |
41820509 | 4415 | #define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel |
40b36596 | 4416 | |
ac145307 BS |
4417 | #undef elf_backend_omit_section_dynsym |
4418 | #define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym | |
4419 | #define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val | |
4420 | ||
2a616379 BS |
4421 | #include "elf32-target.h" |
4422 | ||
4423 | #undef elf32_bed | |
4424 | #define elf32_bed elf32_tic6x_linux_bed | |
4425 | ||
4426 | #undef TARGET_LITTLE_SYM | |
4427 | #define TARGET_LITTLE_SYM bfd_elf32_tic6x_linux_le_vec | |
4428 | #undef TARGET_LITTLE_NAME | |
4429 | #define TARGET_LITTLE_NAME "elf32-tic6x-linux-le" | |
4430 | #undef TARGET_BIG_SYM | |
4431 | #define TARGET_BIG_SYM bfd_elf32_tic6x_linux_be_vec | |
4432 | #undef TARGET_BIG_NAME | |
4433 | #define TARGET_BIG_NAME "elf32-tic6x-linux-be" | |
4434 | #undef ELF_OSABI | |
4435 | #define ELF_OSABI ELFOSABI_C6000_LINUX | |
4436 | ||
4437 | #undef elf_backend_post_process_headers | |
4438 | #define elf_backend_post_process_headers elf32_tic6x_set_osabi | |
4439 | ||
4440 | #include "elf32-target.h" | |
4441 | ||
4442 | #undef elf32_bed | |
4443 | #define elf32_bed elf32_tic6x_elf_bed | |
4444 | ||
4445 | #undef TARGET_LITTLE_SYM | |
4446 | #define TARGET_LITTLE_SYM bfd_elf32_tic6x_elf_le_vec | |
4447 | #undef TARGET_LITTLE_NAME | |
4448 | #define TARGET_LITTLE_NAME "elf32-tic6x-elf-le" | |
4449 | #undef TARGET_BIG_SYM | |
4450 | #define TARGET_BIG_SYM bfd_elf32_tic6x_elf_be_vec | |
4451 | #undef TARGET_BIG_NAME | |
4452 | #define TARGET_BIG_NAME "elf32-tic6x-elf-be" | |
4453 | #undef ELF_OSABI | |
4454 | #define ELF_OSABI ELFOSABI_C6000_ELFABI | |
4455 | ||
4456 | #undef elf_backend_post_process_headers | |
4457 | #define elf_backend_post_process_headers elf32_tic6x_set_osabi | |
ac145307 | 4458 | |
40b36596 | 4459 | #include "elf32-target.h" |