Commit | Line | Data |
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40b36596 | 1 | /* 32-bit ELF support for TI C6X |
ac145307 | 2 | Copyright 2010, 2011 |
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" | |
25 | #include "bfd.h" | |
26 | #include "libbfd.h" | |
27 | #include "libiberty.h" | |
28 | #include "elf-bfd.h" | |
29 | #include "elf/tic6x.h" | |
41820509 JM |
30 | #include "elf32-tic6x.h" |
31 | ||
ac145307 BS |
32 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0" |
33 | ||
34 | /* DSBT binaries have a default 128K stack. */ | |
35 | #define DEFAULT_STACK_SIZE 0x20000 | |
36 | ||
37 | /* The size in bytes of an entry in the procedure linkage table. */ | |
38 | #define PLT_ENTRY_SIZE 24 | |
39 | ||
40 | /* TI C6X ELF linker hash table. */ | |
41 | ||
42 | struct elf32_tic6x_link_hash_table | |
43 | { | |
44 | struct elf_link_hash_table elf; | |
45 | ||
46 | /* Short-cuts to get to dynamic linker sections. */ | |
47 | asection *sdynbss; | |
48 | asection *srelbss; | |
49 | ||
50 | /* C6X specific command line arguments. */ | |
51 | struct elf32_tic6x_params params; | |
52 | ||
53 | /* Small local sym cache. */ | |
54 | struct sym_cache sym_cache; | |
55 | ||
56 | /* The output BFD, for convenience. */ | |
57 | bfd *obfd; | |
58 | ||
59 | /* The .dsbt section. */ | |
60 | asection *dsbt; | |
61 | }; | |
62 | ||
63 | /* Get the TI C6X ELF linker hash table from a link_info structure. */ | |
64 | ||
65 | #define elf32_tic6x_hash_table(p) \ | |
66 | ((struct elf32_tic6x_link_hash_table *) ((p)->hash)) | |
67 | ||
68 | /* TI C6X ELF linker hash entry. */ | |
69 | ||
70 | struct elf32_tic6x_link_hash_entry | |
71 | { | |
72 | struct elf_link_hash_entry elf; | |
73 | ||
74 | /* Track dynamic relocs copied for this symbol. */ | |
75 | struct elf_dyn_relocs *dyn_relocs; | |
76 | }; | |
77 | ||
41820509 JM |
78 | struct elf32_tic6x_obj_tdata |
79 | { | |
80 | struct elf_obj_tdata root; | |
81 | ||
82 | /* Whether to use RELA relocations when generating relocations. | |
83 | This is a per-object flag to allow the assembler to generate REL | |
84 | relocations for use in linker testcases. */ | |
85 | bfd_boolean use_rela_p; | |
86 | }; | |
87 | ||
88 | #define elf32_tic6x_tdata(abfd) \ | |
89 | ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any) | |
40b36596 | 90 | |
ac145307 BS |
91 | #define is_tic6x_elf(bfd) \ |
92 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
93 | && elf_tdata (bfd) != NULL \ | |
94 | && elf_object_id (bfd) == TIC6X_ELF_DATA) | |
95 | ||
96 | /* C6X ELF uses two common sections. One is the usual one, and the | |
97 | other is for small objects. All the small objects are kept | |
98 | together, and then referenced via the gp pointer, which yields | |
99 | faster assembler code. This is what we use for the small common | |
100 | section. This approach is copied from ecoff.c. */ | |
101 | static asection tic6x_elf_scom_section; | |
102 | static asymbol tic6x_elf_scom_symbol; | |
103 | static asymbol *tic6x_elf_scom_symbol_ptr; | |
104 | ||
40b36596 JM |
105 | static reloc_howto_type elf32_tic6x_howto_table[] = |
106 | { | |
107 | HOWTO (R_C6000_NONE, /* type */ | |
108 | 0, /* rightshift */ | |
109 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
110 | 0, /* bitsize */ | |
111 | FALSE, /* pc_relative */ | |
112 | 0, /* bitpos */ | |
113 | complain_overflow_dont,/* complain_on_overflow */ | |
114 | bfd_elf_generic_reloc, /* special_function */ | |
115 | "R_C6000_NONE", /* name */ | |
41820509 JM |
116 | FALSE, /* partial_inplace */ |
117 | 0, /* src_mask */ | |
118 | 0, /* dst_mask */ | |
119 | FALSE), /* pcrel_offset */ | |
120 | HOWTO (R_C6000_ABS32, /* type */ | |
121 | 0, /* rightshift */ | |
122 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
123 | 32, /* bitsize */ | |
124 | FALSE, /* pc_relative */ | |
125 | 0, /* bitpos */ | |
126 | complain_overflow_dont,/* complain_on_overflow */ | |
127 | bfd_elf_generic_reloc, /* special_function */ | |
128 | "R_C6000_ABS32", /* name */ | |
129 | FALSE, /* partial_inplace */ | |
130 | 0, /* src_mask */ | |
131 | 0xffffffff, /* dst_mask */ | |
132 | FALSE), /* pcrel_offset */ | |
133 | HOWTO (R_C6000_ABS16, /* type */ | |
134 | 0, /* rightshift */ | |
135 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
136 | 16, /* bitsize */ | |
137 | FALSE, /* pc_relative */ | |
138 | 0, /* bitpos */ | |
139 | complain_overflow_bitfield,/* complain_on_overflow */ | |
140 | bfd_elf_generic_reloc, /* special_function */ | |
141 | "R_C6000_ABS16", /* name */ | |
142 | FALSE, /* partial_inplace */ | |
143 | 0, /* src_mask */ | |
144 | 0x0000ffff, /* dst_mask */ | |
145 | FALSE), /* pcrel_offset */ | |
146 | HOWTO (R_C6000_ABS8, /* type */ | |
147 | 0, /* rightshift */ | |
148 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
149 | 8, /* bitsize */ | |
150 | FALSE, /* pc_relative */ | |
151 | 0, /* bitpos */ | |
152 | complain_overflow_bitfield,/* complain_on_overflow */ | |
153 | bfd_elf_generic_reloc, /* special_function */ | |
154 | "R_C6000_ABS8", /* name */ | |
155 | FALSE, /* partial_inplace */ | |
156 | 0, /* src_mask */ | |
157 | 0x000000ff, /* dst_mask */ | |
158 | FALSE), /* pcrel_offset */ | |
159 | HOWTO (R_C6000_PCR_S21, /* type */ | |
160 | 2, /* rightshift */ | |
161 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
162 | 21, /* bitsize */ | |
163 | TRUE, /* pc_relative */ | |
164 | 7, /* bitpos */ | |
165 | complain_overflow_signed,/* complain_on_overflow */ | |
166 | bfd_elf_generic_reloc, /* special_function */ | |
167 | "R_C6000_PCR_S21", /* name */ | |
168 | FALSE, /* partial_inplace */ | |
169 | 0, /* src_mask */ | |
170 | 0x0fffff80, /* dst_mask */ | |
171 | TRUE), /* pcrel_offset */ | |
172 | HOWTO (R_C6000_PCR_S12, /* type */ | |
173 | 2, /* rightshift */ | |
174 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
175 | 12, /* bitsize */ | |
176 | TRUE, /* pc_relative */ | |
177 | 16, /* bitpos */ | |
178 | complain_overflow_signed,/* complain_on_overflow */ | |
179 | bfd_elf_generic_reloc, /* special_function */ | |
180 | "R_C6000_PCR_S12", /* name */ | |
181 | FALSE, /* partial_inplace */ | |
182 | 0, /* src_mask */ | |
183 | 0x0fff0000, /* dst_mask */ | |
184 | TRUE), /* pcrel_offset */ | |
185 | HOWTO (R_C6000_PCR_S10, /* type */ | |
186 | 2, /* rightshift */ | |
187 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
188 | 10, /* bitsize */ | |
189 | TRUE, /* pc_relative */ | |
190 | 13, /* bitpos */ | |
191 | complain_overflow_signed,/* complain_on_overflow */ | |
192 | bfd_elf_generic_reloc, /* special_function */ | |
193 | "R_C6000_PCR_S10", /* name */ | |
194 | FALSE, /* partial_inplace */ | |
195 | 0, /* src_mask */ | |
196 | 0x007fe000, /* dst_mask */ | |
197 | TRUE), /* pcrel_offset */ | |
198 | HOWTO (R_C6000_PCR_S7, /* type */ | |
199 | 2, /* rightshift */ | |
200 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
201 | 7, /* bitsize */ | |
202 | TRUE, /* pc_relative */ | |
203 | 16, /* bitpos */ | |
204 | complain_overflow_signed,/* complain_on_overflow */ | |
205 | bfd_elf_generic_reloc, /* special_function */ | |
206 | "R_C6000_PCR_S7", /* name */ | |
207 | FALSE, /* partial_inplace */ | |
208 | 0, /* src_mask */ | |
209 | 0x007f0000, /* dst_mask */ | |
210 | TRUE), /* pcrel_offset */ | |
211 | HOWTO (R_C6000_ABS_S16, /* type */ | |
212 | 0, /* rightshift */ | |
213 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
214 | 16, /* bitsize */ | |
215 | FALSE, /* pc_relative */ | |
216 | 7, /* bitpos */ | |
217 | complain_overflow_signed,/* complain_on_overflow */ | |
218 | bfd_elf_generic_reloc, /* special_function */ | |
219 | "R_C6000_ABS_S16", /* name */ | |
220 | FALSE, /* partial_inplace */ | |
221 | 0, /* src_mask */ | |
222 | 0x007fff80, /* dst_mask */ | |
223 | FALSE), /* pcrel_offset */ | |
224 | HOWTO (R_C6000_ABS_L16, /* type */ | |
225 | 0, /* rightshift */ | |
226 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
227 | 16, /* bitsize */ | |
228 | FALSE, /* pc_relative */ | |
229 | 7, /* bitpos */ | |
230 | complain_overflow_dont,/* complain_on_overflow */ | |
231 | bfd_elf_generic_reloc, /* special_function */ | |
232 | "R_C6000_ABS_L16", /* name */ | |
233 | FALSE, /* partial_inplace */ | |
234 | 0, /* src_mask */ | |
235 | 0x007fff80, /* dst_mask */ | |
236 | FALSE), /* pcrel_offset */ | |
237 | HOWTO (R_C6000_ABS_H16, /* type */ | |
238 | 16, /* rightshift */ | |
239 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
240 | 16, /* bitsize */ | |
241 | FALSE, /* pc_relative */ | |
242 | 7, /* bitpos */ | |
243 | complain_overflow_dont,/* complain_on_overflow */ | |
244 | bfd_elf_generic_reloc, /* special_function */ | |
245 | "R_C6000_ABS_H16", /* name */ | |
246 | FALSE, /* partial_inplace */ | |
247 | 0, /* src_mask */ | |
248 | 0x007fff80, /* dst_mask */ | |
249 | FALSE), /* pcrel_offset */ | |
250 | HOWTO (R_C6000_SBR_U15_B, /* type */ | |
251 | 0, /* rightshift */ | |
252 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
253 | 15, /* bitsize */ | |
254 | FALSE, /* pc_relative */ | |
255 | 8, /* bitpos */ | |
256 | complain_overflow_unsigned,/* complain_on_overflow */ | |
257 | bfd_elf_generic_reloc, /* special_function */ | |
258 | "R_C6000_SBR_U15_B", /* name */ | |
259 | FALSE, /* partial_inplace */ | |
260 | 0, /* src_mask */ | |
261 | 0x007fff00, /* dst_mask */ | |
262 | FALSE), /* pcrel_offset */ | |
263 | HOWTO (R_C6000_SBR_U15_H, /* type */ | |
264 | 1, /* rightshift */ | |
265 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
266 | 15, /* bitsize */ | |
267 | FALSE, /* pc_relative */ | |
268 | 8, /* bitpos */ | |
269 | complain_overflow_unsigned,/* complain_on_overflow */ | |
270 | bfd_elf_generic_reloc, /* special_function */ | |
271 | "R_C6000_SBR_U15_H", /* name */ | |
272 | FALSE, /* partial_inplace */ | |
273 | 0, /* src_mask */ | |
274 | 0x007fff00, /* dst_mask */ | |
275 | FALSE), /* pcrel_offset */ | |
276 | HOWTO (R_C6000_SBR_U15_W, /* type */ | |
277 | 2, /* rightshift */ | |
278 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
279 | 15, /* bitsize */ | |
280 | FALSE, /* pc_relative */ | |
281 | 8, /* bitpos */ | |
282 | complain_overflow_unsigned,/* complain_on_overflow */ | |
283 | bfd_elf_generic_reloc, /* special_function */ | |
284 | "R_C6000_SBR_U15_W", /* name */ | |
285 | FALSE, /* partial_inplace */ | |
286 | 0, /* src_mask */ | |
287 | 0x007fff00, /* dst_mask */ | |
288 | FALSE), /* pcrel_offset */ | |
289 | HOWTO (R_C6000_SBR_S16, /* type */ | |
290 | 0, /* rightshift */ | |
291 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
292 | 16, /* bitsize */ | |
293 | FALSE, /* pc_relative */ | |
294 | 7, /* bitpos */ | |
295 | complain_overflow_signed,/* complain_on_overflow */ | |
296 | bfd_elf_generic_reloc, /* special_function */ | |
297 | "R_C6000_SBR_S16", /* name */ | |
298 | FALSE, /* partial_inplace */ | |
299 | 0, /* src_mask */ | |
300 | 0x007fff80, /* dst_mask */ | |
301 | FALSE), /* pcrel_offset */ | |
302 | HOWTO (R_C6000_SBR_L16_B, /* type */ | |
303 | 0, /* rightshift */ | |
304 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
305 | 16, /* bitsize */ | |
306 | FALSE, /* pc_relative */ | |
307 | 7, /* bitpos */ | |
308 | complain_overflow_dont,/* complain_on_overflow */ | |
309 | bfd_elf_generic_reloc, /* special_function */ | |
310 | "R_C6000_SBR_L16_B", /* name */ | |
311 | FALSE, /* partial_inplace */ | |
312 | 0, /* src_mask */ | |
313 | 0x007fff80, /* dst_mask */ | |
314 | FALSE), /* pcrel_offset */ | |
315 | HOWTO (R_C6000_SBR_L16_H, /* type */ | |
316 | 1, /* rightshift */ | |
317 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
318 | 16, /* bitsize */ | |
319 | FALSE, /* pc_relative */ | |
320 | 7, /* bitpos */ | |
321 | complain_overflow_dont,/* complain_on_overflow */ | |
322 | bfd_elf_generic_reloc, /* special_function */ | |
323 | "R_C6000_SBR_L16_H", /* name */ | |
324 | FALSE, /* partial_inplace */ | |
325 | 0, /* src_mask */ | |
326 | 0x007fff80, /* dst_mask */ | |
327 | FALSE), /* pcrel_offset */ | |
328 | HOWTO (R_C6000_SBR_L16_W, /* type */ | |
329 | 2, /* rightshift */ | |
330 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
331 | 16, /* bitsize */ | |
332 | FALSE, /* pc_relative */ | |
333 | 7, /* bitpos */ | |
334 | complain_overflow_dont,/* complain_on_overflow */ | |
335 | bfd_elf_generic_reloc, /* special_function */ | |
336 | "R_C6000_SBR_L16_W", /* name */ | |
337 | FALSE, /* partial_inplace */ | |
338 | 0, /* src_mask */ | |
339 | 0x007fff80, /* dst_mask */ | |
340 | FALSE), /* pcrel_offset */ | |
341 | HOWTO (R_C6000_SBR_H16_B, /* type */ | |
342 | 16, /* rightshift */ | |
343 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
344 | 16, /* bitsize */ | |
345 | FALSE, /* pc_relative */ | |
346 | 7, /* bitpos */ | |
347 | complain_overflow_dont,/* complain_on_overflow */ | |
348 | bfd_elf_generic_reloc, /* special_function */ | |
349 | "R_C6000_SBR_H16_B", /* name */ | |
350 | FALSE, /* partial_inplace */ | |
351 | 0, /* src_mask */ | |
352 | 0x007fff80, /* dst_mask */ | |
353 | FALSE), /* pcrel_offset */ | |
354 | HOWTO (R_C6000_SBR_H16_H, /* type */ | |
355 | 17, /* rightshift */ | |
356 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
357 | 16, /* bitsize */ | |
358 | FALSE, /* pc_relative */ | |
359 | 7, /* bitpos */ | |
360 | complain_overflow_dont,/* complain_on_overflow */ | |
361 | bfd_elf_generic_reloc, /* special_function */ | |
362 | "R_C6000_SBR_H16_H", /* name */ | |
363 | FALSE, /* partial_inplace */ | |
364 | 0, /* src_mask */ | |
365 | 0x007fff80, /* dst_mask */ | |
366 | FALSE), /* pcrel_offset */ | |
367 | HOWTO (R_C6000_SBR_H16_W, /* type */ | |
368 | 18, /* rightshift */ | |
369 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
370 | 16, /* bitsize */ | |
371 | FALSE, /* pc_relative */ | |
372 | 7, /* bitpos */ | |
373 | complain_overflow_dont,/* complain_on_overflow */ | |
374 | bfd_elf_generic_reloc, /* special_function */ | |
375 | "R_C6000_SBR_H16_W", /* name */ | |
376 | FALSE, /* partial_inplace */ | |
377 | 0, /* src_mask */ | |
378 | 0x007fff80, /* dst_mask */ | |
379 | FALSE), /* pcrel_offset */ | |
380 | HOWTO (R_C6000_SBR_GOT_U15_W, /* type */ | |
381 | 2, /* rightshift */ | |
382 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
383 | 15, /* bitsize */ | |
384 | FALSE, /* pc_relative */ | |
385 | 8, /* bitpos */ | |
386 | complain_overflow_unsigned,/* complain_on_overflow */ | |
387 | bfd_elf_generic_reloc, /* special_function */ | |
388 | "R_C6000_SBR_GOT_U15_W",/* name */ | |
389 | FALSE, /* partial_inplace */ | |
390 | 0, /* src_mask */ | |
391 | 0x007fff00, /* dst_mask */ | |
392 | FALSE), /* pcrel_offset */ | |
393 | HOWTO (R_C6000_SBR_GOT_L16_W, /* type */ | |
394 | 2, /* rightshift */ | |
395 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
396 | 16, /* bitsize */ | |
397 | FALSE, /* pc_relative */ | |
398 | 7, /* bitpos */ | |
399 | complain_overflow_dont,/* complain_on_overflow */ | |
400 | bfd_elf_generic_reloc, /* special_function */ | |
401 | "R_C6000_SBR_GOT_L16_W",/* name */ | |
402 | FALSE, /* partial_inplace */ | |
403 | 0, /* src_mask */ | |
404 | 0x007fff80, /* dst_mask */ | |
405 | FALSE), /* pcrel_offset */ | |
406 | HOWTO (R_C6000_SBR_GOT_H16_W, /* type */ | |
407 | 18, /* rightshift */ | |
408 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
409 | 16, /* bitsize */ | |
410 | FALSE, /* pc_relative */ | |
411 | 7, /* bitpos */ | |
412 | complain_overflow_dont,/* complain_on_overflow */ | |
413 | bfd_elf_generic_reloc, /* special_function */ | |
414 | "R_C6000_SBR_GOT_H16_W",/* name */ | |
415 | FALSE, /* partial_inplace */ | |
416 | 0, /* src_mask */ | |
417 | 0x007fff80, /* dst_mask */ | |
418 | FALSE), /* pcrel_offset */ | |
419 | HOWTO (R_C6000_DSBT_INDEX, /* type */ | |
420 | 0, /* rightshift */ | |
421 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
422 | 15, /* bitsize */ | |
423 | FALSE, /* pc_relative */ | |
424 | 8, /* bitpos */ | |
425 | complain_overflow_unsigned,/* complain_on_overflow */ | |
426 | bfd_elf_generic_reloc, /* special_function */ | |
427 | "R_C6000_DSBT_INDEX", /* name */ | |
428 | FALSE, /* partial_inplace */ | |
429 | 0, /* src_mask */ | |
430 | 0x007fff00, /* dst_mask */ | |
431 | FALSE), /* pcrel_offset */ | |
432 | HOWTO (R_C6000_PREL31, /* type */ | |
433 | 1, /* rightshift */ | |
434 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
435 | 31, /* bitsize */ | |
436 | FALSE, /* pc_relative */ | |
437 | 0, /* bitpos */ | |
438 | complain_overflow_dont,/* complain_on_overflow */ | |
439 | bfd_elf_generic_reloc, /* special_function */ | |
440 | "R_C6000_PREL31", /* name */ | |
441 | FALSE, /* partial_inplace */ | |
442 | 0, /* src_mask */ | |
443 | 0x7fffffff, /* dst_mask */ | |
444 | FALSE), /* pcrel_offset */ | |
445 | HOWTO (R_C6000_COPY, /* type */ | |
446 | 0, /* rightshift */ | |
447 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
448 | 32, /* bitsize */ | |
449 | FALSE, /* pc_relative */ | |
450 | 0, /* bitpos */ | |
451 | complain_overflow_dont,/* complain_on_overflow */ | |
452 | bfd_elf_generic_reloc, /* special_function */ | |
453 | "R_C6000_COPY", /* name */ | |
454 | FALSE, /* partial_inplace */ | |
455 | 0, /* src_mask */ | |
456 | 0xffffffff, /* dst_mask */ | |
457 | FALSE), /* pcrel_offset */ | |
ac145307 BS |
458 | HOWTO (R_C6000_JUMP_SLOT, /* type */ |
459 | 0, /* rightshift */ | |
460 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
461 | 32, /* bitsize */ | |
462 | FALSE, /* pc_relative */ | |
463 | 0, /* bitpos */ | |
464 | complain_overflow_dont,/* complain_on_overflow */ | |
465 | bfd_elf_generic_reloc, /* special_function */ | |
466 | "R_C6000_JUMP_SLOT", /* name */ | |
467 | FALSE, /* partial_inplace */ | |
468 | 0, /* src_mask */ | |
469 | 0xffffffff, /* dst_mask */ | |
470 | FALSE), /* pcrel_offset */ | |
41820509 JM |
471 | EMPTY_HOWTO (28), |
472 | EMPTY_HOWTO (29), | |
473 | EMPTY_HOWTO (30), | |
474 | EMPTY_HOWTO (31), | |
475 | EMPTY_HOWTO (32), | |
476 | EMPTY_HOWTO (33), | |
477 | EMPTY_HOWTO (34), | |
478 | EMPTY_HOWTO (35), | |
479 | EMPTY_HOWTO (36), | |
480 | EMPTY_HOWTO (37), | |
481 | EMPTY_HOWTO (38), | |
482 | EMPTY_HOWTO (39), | |
483 | EMPTY_HOWTO (40), | |
484 | EMPTY_HOWTO (41), | |
485 | EMPTY_HOWTO (42), | |
486 | EMPTY_HOWTO (43), | |
487 | EMPTY_HOWTO (44), | |
488 | EMPTY_HOWTO (45), | |
489 | EMPTY_HOWTO (46), | |
490 | EMPTY_HOWTO (47), | |
491 | EMPTY_HOWTO (48), | |
492 | EMPTY_HOWTO (49), | |
493 | EMPTY_HOWTO (50), | |
494 | EMPTY_HOWTO (51), | |
495 | EMPTY_HOWTO (52), | |
496 | EMPTY_HOWTO (53), | |
497 | EMPTY_HOWTO (54), | |
498 | EMPTY_HOWTO (55), | |
499 | EMPTY_HOWTO (56), | |
500 | EMPTY_HOWTO (57), | |
501 | EMPTY_HOWTO (58), | |
502 | EMPTY_HOWTO (59), | |
503 | EMPTY_HOWTO (60), | |
504 | EMPTY_HOWTO (61), | |
505 | EMPTY_HOWTO (62), | |
506 | EMPTY_HOWTO (63), | |
507 | EMPTY_HOWTO (64), | |
508 | EMPTY_HOWTO (65), | |
509 | EMPTY_HOWTO (66), | |
510 | EMPTY_HOWTO (67), | |
511 | EMPTY_HOWTO (68), | |
512 | EMPTY_HOWTO (69), | |
513 | EMPTY_HOWTO (70), | |
514 | EMPTY_HOWTO (71), | |
515 | EMPTY_HOWTO (72), | |
516 | EMPTY_HOWTO (73), | |
517 | EMPTY_HOWTO (74), | |
518 | EMPTY_HOWTO (75), | |
519 | EMPTY_HOWTO (76), | |
520 | EMPTY_HOWTO (77), | |
521 | EMPTY_HOWTO (78), | |
522 | EMPTY_HOWTO (79), | |
523 | EMPTY_HOWTO (80), | |
524 | EMPTY_HOWTO (81), | |
525 | EMPTY_HOWTO (82), | |
526 | EMPTY_HOWTO (83), | |
527 | EMPTY_HOWTO (84), | |
528 | EMPTY_HOWTO (85), | |
529 | EMPTY_HOWTO (86), | |
530 | EMPTY_HOWTO (87), | |
531 | EMPTY_HOWTO (88), | |
532 | EMPTY_HOWTO (89), | |
533 | EMPTY_HOWTO (90), | |
534 | EMPTY_HOWTO (91), | |
535 | EMPTY_HOWTO (92), | |
536 | EMPTY_HOWTO (93), | |
537 | EMPTY_HOWTO (94), | |
538 | EMPTY_HOWTO (95), | |
539 | EMPTY_HOWTO (96), | |
540 | EMPTY_HOWTO (97), | |
541 | EMPTY_HOWTO (98), | |
542 | EMPTY_HOWTO (99), | |
543 | EMPTY_HOWTO (100), | |
544 | EMPTY_HOWTO (101), | |
545 | EMPTY_HOWTO (102), | |
546 | EMPTY_HOWTO (103), | |
547 | EMPTY_HOWTO (104), | |
548 | EMPTY_HOWTO (105), | |
549 | EMPTY_HOWTO (106), | |
550 | EMPTY_HOWTO (107), | |
551 | EMPTY_HOWTO (108), | |
552 | EMPTY_HOWTO (109), | |
553 | EMPTY_HOWTO (110), | |
554 | EMPTY_HOWTO (111), | |
555 | EMPTY_HOWTO (112), | |
556 | EMPTY_HOWTO (113), | |
557 | EMPTY_HOWTO (114), | |
558 | EMPTY_HOWTO (115), | |
559 | EMPTY_HOWTO (116), | |
560 | EMPTY_HOWTO (117), | |
561 | EMPTY_HOWTO (118), | |
562 | EMPTY_HOWTO (119), | |
563 | EMPTY_HOWTO (120), | |
564 | EMPTY_HOWTO (121), | |
565 | EMPTY_HOWTO (122), | |
566 | EMPTY_HOWTO (123), | |
567 | EMPTY_HOWTO (124), | |
568 | EMPTY_HOWTO (125), | |
569 | EMPTY_HOWTO (126), | |
570 | EMPTY_HOWTO (127), | |
571 | EMPTY_HOWTO (128), | |
572 | EMPTY_HOWTO (129), | |
573 | EMPTY_HOWTO (130), | |
574 | EMPTY_HOWTO (131), | |
575 | EMPTY_HOWTO (132), | |
576 | EMPTY_HOWTO (133), | |
577 | EMPTY_HOWTO (134), | |
578 | EMPTY_HOWTO (135), | |
579 | EMPTY_HOWTO (136), | |
580 | EMPTY_HOWTO (137), | |
581 | EMPTY_HOWTO (138), | |
582 | EMPTY_HOWTO (139), | |
583 | EMPTY_HOWTO (140), | |
584 | EMPTY_HOWTO (141), | |
585 | EMPTY_HOWTO (142), | |
586 | EMPTY_HOWTO (143), | |
587 | EMPTY_HOWTO (144), | |
588 | EMPTY_HOWTO (145), | |
589 | EMPTY_HOWTO (146), | |
590 | EMPTY_HOWTO (147), | |
591 | EMPTY_HOWTO (148), | |
592 | EMPTY_HOWTO (149), | |
593 | EMPTY_HOWTO (150), | |
594 | EMPTY_HOWTO (151), | |
595 | EMPTY_HOWTO (152), | |
596 | EMPTY_HOWTO (153), | |
597 | EMPTY_HOWTO (154), | |
598 | EMPTY_HOWTO (155), | |
599 | EMPTY_HOWTO (156), | |
600 | EMPTY_HOWTO (157), | |
601 | EMPTY_HOWTO (158), | |
602 | EMPTY_HOWTO (159), | |
603 | EMPTY_HOWTO (160), | |
604 | EMPTY_HOWTO (161), | |
605 | EMPTY_HOWTO (162), | |
606 | EMPTY_HOWTO (163), | |
607 | EMPTY_HOWTO (164), | |
608 | EMPTY_HOWTO (165), | |
609 | EMPTY_HOWTO (166), | |
610 | EMPTY_HOWTO (167), | |
611 | EMPTY_HOWTO (168), | |
612 | EMPTY_HOWTO (169), | |
613 | EMPTY_HOWTO (170), | |
614 | EMPTY_HOWTO (171), | |
615 | EMPTY_HOWTO (172), | |
616 | EMPTY_HOWTO (173), | |
617 | EMPTY_HOWTO (174), | |
618 | EMPTY_HOWTO (175), | |
619 | EMPTY_HOWTO (176), | |
620 | EMPTY_HOWTO (177), | |
621 | EMPTY_HOWTO (178), | |
622 | EMPTY_HOWTO (179), | |
623 | EMPTY_HOWTO (180), | |
624 | EMPTY_HOWTO (181), | |
625 | EMPTY_HOWTO (182), | |
626 | EMPTY_HOWTO (183), | |
627 | EMPTY_HOWTO (184), | |
628 | EMPTY_HOWTO (185), | |
629 | EMPTY_HOWTO (186), | |
630 | EMPTY_HOWTO (187), | |
631 | EMPTY_HOWTO (188), | |
632 | EMPTY_HOWTO (189), | |
633 | EMPTY_HOWTO (190), | |
634 | EMPTY_HOWTO (191), | |
635 | EMPTY_HOWTO (192), | |
636 | EMPTY_HOWTO (193), | |
637 | EMPTY_HOWTO (194), | |
638 | EMPTY_HOWTO (195), | |
639 | EMPTY_HOWTO (196), | |
640 | EMPTY_HOWTO (197), | |
641 | EMPTY_HOWTO (198), | |
642 | EMPTY_HOWTO (199), | |
643 | EMPTY_HOWTO (200), | |
644 | EMPTY_HOWTO (201), | |
645 | EMPTY_HOWTO (202), | |
646 | EMPTY_HOWTO (203), | |
647 | EMPTY_HOWTO (204), | |
648 | EMPTY_HOWTO (205), | |
649 | EMPTY_HOWTO (206), | |
650 | EMPTY_HOWTO (207), | |
651 | EMPTY_HOWTO (208), | |
652 | EMPTY_HOWTO (209), | |
653 | EMPTY_HOWTO (210), | |
654 | EMPTY_HOWTO (211), | |
655 | EMPTY_HOWTO (212), | |
656 | EMPTY_HOWTO (213), | |
657 | EMPTY_HOWTO (214), | |
658 | EMPTY_HOWTO (215), | |
659 | EMPTY_HOWTO (216), | |
660 | EMPTY_HOWTO (217), | |
661 | EMPTY_HOWTO (218), | |
662 | EMPTY_HOWTO (219), | |
663 | EMPTY_HOWTO (220), | |
664 | EMPTY_HOWTO (221), | |
665 | EMPTY_HOWTO (222), | |
666 | EMPTY_HOWTO (223), | |
667 | EMPTY_HOWTO (224), | |
668 | EMPTY_HOWTO (225), | |
669 | EMPTY_HOWTO (226), | |
670 | EMPTY_HOWTO (227), | |
671 | EMPTY_HOWTO (228), | |
672 | EMPTY_HOWTO (229), | |
673 | EMPTY_HOWTO (230), | |
674 | EMPTY_HOWTO (231), | |
675 | EMPTY_HOWTO (232), | |
676 | EMPTY_HOWTO (233), | |
677 | EMPTY_HOWTO (234), | |
678 | EMPTY_HOWTO (235), | |
679 | EMPTY_HOWTO (236), | |
680 | EMPTY_HOWTO (237), | |
681 | EMPTY_HOWTO (238), | |
682 | EMPTY_HOWTO (239), | |
683 | EMPTY_HOWTO (240), | |
684 | EMPTY_HOWTO (241), | |
685 | EMPTY_HOWTO (242), | |
686 | EMPTY_HOWTO (243), | |
687 | EMPTY_HOWTO (244), | |
688 | EMPTY_HOWTO (245), | |
689 | EMPTY_HOWTO (246), | |
690 | EMPTY_HOWTO (247), | |
691 | EMPTY_HOWTO (248), | |
692 | EMPTY_HOWTO (249), | |
693 | EMPTY_HOWTO (250), | |
694 | EMPTY_HOWTO (251), | |
695 | EMPTY_HOWTO (252), | |
696 | HOWTO (R_C6000_ALIGN, /* type */ | |
697 | 0, /* rightshift */ | |
698 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
699 | 0, /* bitsize */ | |
700 | FALSE, /* pc_relative */ | |
701 | 0, /* bitpos */ | |
702 | complain_overflow_dont,/* complain_on_overflow */ | |
703 | bfd_elf_generic_reloc, /* special_function */ | |
704 | "R_C6000_ALIGN", /* name */ | |
705 | FALSE, /* partial_inplace */ | |
706 | 0, /* src_mask */ | |
707 | 0, /* dst_mask */ | |
708 | FALSE), /* pcrel_offset */ | |
709 | HOWTO (R_C6000_FPHEAD, /* type */ | |
710 | 0, /* rightshift */ | |
711 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
712 | 0, /* bitsize */ | |
713 | FALSE, /* pc_relative */ | |
714 | 0, /* bitpos */ | |
715 | complain_overflow_dont,/* complain_on_overflow */ | |
716 | bfd_elf_generic_reloc, /* special_function */ | |
717 | "R_C6000_FPHEAD", /* name */ | |
718 | FALSE, /* partial_inplace */ | |
719 | 0, /* src_mask */ | |
720 | 0, /* dst_mask */ | |
721 | FALSE), /* pcrel_offset */ | |
722 | HOWTO (R_C6000_NOCMP, /* type */ | |
723 | 0, /* rightshift */ | |
724 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
725 | 0, /* bitsize */ | |
726 | FALSE, /* pc_relative */ | |
727 | 0, /* bitpos */ | |
728 | complain_overflow_dont,/* complain_on_overflow */ | |
729 | bfd_elf_generic_reloc, /* special_function */ | |
730 | "R_C6000_NOCMP", /* name */ | |
731 | FALSE, /* partial_inplace */ | |
732 | 0, /* src_mask */ | |
733 | 0, /* dst_mask */ | |
734 | FALSE) /* pcrel_offset */ | |
735 | }; | |
736 | ||
737 | static reloc_howto_type elf32_tic6x_howto_table_rel[] = | |
738 | { | |
739 | HOWTO (R_C6000_NONE, /* type */ | |
740 | 0, /* rightshift */ | |
741 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
742 | 0, /* bitsize */ | |
743 | FALSE, /* pc_relative */ | |
744 | 0, /* bitpos */ | |
745 | complain_overflow_dont,/* complain_on_overflow */ | |
746 | bfd_elf_generic_reloc, /* special_function */ | |
747 | "R_C6000_NONE", /* name */ | |
748 | TRUE, /* partial_inplace */ | |
40b36596 JM |
749 | 0, /* src_mask */ |
750 | 0, /* dst_mask */ | |
751 | FALSE), /* pcrel_offset */ | |
752 | HOWTO (R_C6000_ABS32, /* type */ | |
753 | 0, /* rightshift */ | |
754 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
755 | 32, /* bitsize */ | |
756 | FALSE, /* pc_relative */ | |
757 | 0, /* bitpos */ | |
758 | complain_overflow_dont,/* complain_on_overflow */ | |
759 | bfd_elf_generic_reloc, /* special_function */ | |
760 | "R_C6000_ABS32", /* name */ | |
41820509 JM |
761 | TRUE, /* partial_inplace */ |
762 | 0xffffffff, /* src_mask */ | |
40b36596 JM |
763 | 0xffffffff, /* dst_mask */ |
764 | FALSE), /* pcrel_offset */ | |
765 | HOWTO (R_C6000_ABS16, /* type */ | |
766 | 0, /* rightshift */ | |
767 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
768 | 16, /* bitsize */ | |
769 | FALSE, /* pc_relative */ | |
770 | 0, /* bitpos */ | |
771 | complain_overflow_bitfield,/* complain_on_overflow */ | |
772 | bfd_elf_generic_reloc, /* special_function */ | |
773 | "R_C6000_ABS16", /* name */ | |
41820509 JM |
774 | TRUE, /* partial_inplace */ |
775 | 0x0000ffff, /* src_mask */ | |
40b36596 JM |
776 | 0x0000ffff, /* dst_mask */ |
777 | FALSE), /* pcrel_offset */ | |
778 | HOWTO (R_C6000_ABS8, /* type */ | |
779 | 0, /* rightshift */ | |
780 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
781 | 8, /* bitsize */ | |
782 | FALSE, /* pc_relative */ | |
783 | 0, /* bitpos */ | |
784 | complain_overflow_bitfield,/* complain_on_overflow */ | |
785 | bfd_elf_generic_reloc, /* special_function */ | |
786 | "R_C6000_ABS8", /* name */ | |
41820509 JM |
787 | TRUE, /* partial_inplace */ |
788 | 0x000000ff, /* src_mask */ | |
40b36596 JM |
789 | 0x000000ff, /* dst_mask */ |
790 | FALSE), /* pcrel_offset */ | |
791 | HOWTO (R_C6000_PCR_S21, /* type */ | |
792 | 2, /* rightshift */ | |
793 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
794 | 21, /* bitsize */ | |
795 | TRUE, /* pc_relative */ | |
796 | 7, /* bitpos */ | |
797 | complain_overflow_signed,/* complain_on_overflow */ | |
798 | bfd_elf_generic_reloc, /* special_function */ | |
799 | "R_C6000_PCR_S21", /* name */ | |
41820509 JM |
800 | TRUE, /* partial_inplace */ |
801 | 0x0fffff80, /* src_mask */ | |
40b36596 JM |
802 | 0x0fffff80, /* dst_mask */ |
803 | TRUE), /* pcrel_offset */ | |
804 | HOWTO (R_C6000_PCR_S12, /* type */ | |
805 | 2, /* rightshift */ | |
806 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
807 | 12, /* bitsize */ | |
808 | TRUE, /* pc_relative */ | |
809 | 16, /* bitpos */ | |
810 | complain_overflow_signed,/* complain_on_overflow */ | |
811 | bfd_elf_generic_reloc, /* special_function */ | |
812 | "R_C6000_PCR_S12", /* name */ | |
41820509 JM |
813 | TRUE, /* partial_inplace */ |
814 | 0x0fff0000, /* src_mask */ | |
40b36596 JM |
815 | 0x0fff0000, /* dst_mask */ |
816 | TRUE), /* pcrel_offset */ | |
817 | HOWTO (R_C6000_PCR_S10, /* type */ | |
818 | 2, /* rightshift */ | |
819 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
820 | 10, /* bitsize */ | |
821 | TRUE, /* pc_relative */ | |
822 | 13, /* bitpos */ | |
823 | complain_overflow_signed,/* complain_on_overflow */ | |
824 | bfd_elf_generic_reloc, /* special_function */ | |
825 | "R_C6000_PCR_S10", /* name */ | |
41820509 JM |
826 | TRUE, /* partial_inplace */ |
827 | 0x007fe000, /* src_mask */ | |
40b36596 JM |
828 | 0x007fe000, /* dst_mask */ |
829 | TRUE), /* pcrel_offset */ | |
830 | HOWTO (R_C6000_PCR_S7, /* type */ | |
831 | 2, /* rightshift */ | |
832 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
833 | 7, /* bitsize */ | |
834 | TRUE, /* pc_relative */ | |
835 | 16, /* bitpos */ | |
836 | complain_overflow_signed,/* complain_on_overflow */ | |
837 | bfd_elf_generic_reloc, /* special_function */ | |
838 | "R_C6000_PCR_S7", /* name */ | |
41820509 JM |
839 | TRUE, /* partial_inplace */ |
840 | 0x007f0000, /* src_mask */ | |
40b36596 JM |
841 | 0x007f0000, /* dst_mask */ |
842 | TRUE), /* pcrel_offset */ | |
843 | HOWTO (R_C6000_ABS_S16, /* type */ | |
844 | 0, /* rightshift */ | |
845 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
846 | 16, /* bitsize */ | |
847 | FALSE, /* pc_relative */ | |
848 | 7, /* bitpos */ | |
849 | complain_overflow_signed,/* complain_on_overflow */ | |
850 | bfd_elf_generic_reloc, /* special_function */ | |
851 | "R_C6000_ABS_S16", /* name */ | |
41820509 JM |
852 | TRUE, /* partial_inplace */ |
853 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
854 | 0x007fff80, /* dst_mask */ |
855 | FALSE), /* pcrel_offset */ | |
856 | HOWTO (R_C6000_ABS_L16, /* type */ | |
857 | 0, /* rightshift */ | |
858 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
859 | 16, /* bitsize */ | |
860 | FALSE, /* pc_relative */ | |
861 | 7, /* bitpos */ | |
862 | complain_overflow_dont,/* complain_on_overflow */ | |
863 | bfd_elf_generic_reloc, /* special_function */ | |
864 | "R_C6000_ABS_L16", /* name */ | |
41820509 JM |
865 | TRUE, /* partial_inplace */ |
866 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
867 | 0x007fff80, /* dst_mask */ |
868 | FALSE), /* pcrel_offset */ | |
41820509 | 869 | EMPTY_HOWTO (R_C6000_ABS_H16), |
40b36596 JM |
870 | HOWTO (R_C6000_SBR_U15_B, /* type */ |
871 | 0, /* rightshift */ | |
872 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
873 | 15, /* bitsize */ | |
874 | FALSE, /* pc_relative */ | |
875 | 8, /* bitpos */ | |
876 | complain_overflow_unsigned,/* complain_on_overflow */ | |
877 | bfd_elf_generic_reloc, /* special_function */ | |
878 | "R_C6000_SBR_U15_B", /* name */ | |
41820509 JM |
879 | TRUE, /* partial_inplace */ |
880 | 0x007fff00, /* src_mask */ | |
40b36596 JM |
881 | 0x007fff00, /* dst_mask */ |
882 | FALSE), /* pcrel_offset */ | |
883 | HOWTO (R_C6000_SBR_U15_H, /* type */ | |
884 | 1, /* rightshift */ | |
885 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
886 | 15, /* bitsize */ | |
887 | FALSE, /* pc_relative */ | |
888 | 8, /* bitpos */ | |
889 | complain_overflow_unsigned,/* complain_on_overflow */ | |
890 | bfd_elf_generic_reloc, /* special_function */ | |
891 | "R_C6000_SBR_U15_H", /* name */ | |
41820509 JM |
892 | TRUE, /* partial_inplace */ |
893 | 0x007fff00, /* src_mask */ | |
40b36596 JM |
894 | 0x007fff00, /* dst_mask */ |
895 | FALSE), /* pcrel_offset */ | |
896 | HOWTO (R_C6000_SBR_U15_W, /* type */ | |
897 | 2, /* rightshift */ | |
898 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
899 | 15, /* bitsize */ | |
900 | FALSE, /* pc_relative */ | |
901 | 8, /* bitpos */ | |
902 | complain_overflow_unsigned,/* complain_on_overflow */ | |
903 | bfd_elf_generic_reloc, /* special_function */ | |
904 | "R_C6000_SBR_U15_W", /* name */ | |
41820509 JM |
905 | TRUE, /* partial_inplace */ |
906 | 0x007fff00, /* src_mask */ | |
40b36596 JM |
907 | 0x007fff00, /* dst_mask */ |
908 | FALSE), /* pcrel_offset */ | |
909 | HOWTO (R_C6000_SBR_S16, /* type */ | |
910 | 0, /* rightshift */ | |
911 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
912 | 16, /* bitsize */ | |
913 | FALSE, /* pc_relative */ | |
914 | 7, /* bitpos */ | |
915 | complain_overflow_signed,/* complain_on_overflow */ | |
916 | bfd_elf_generic_reloc, /* special_function */ | |
917 | "R_C6000_SBR_S16", /* name */ | |
41820509 JM |
918 | TRUE, /* partial_inplace */ |
919 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
920 | 0x007fff80, /* dst_mask */ |
921 | FALSE), /* pcrel_offset */ | |
922 | HOWTO (R_C6000_SBR_L16_B, /* type */ | |
923 | 0, /* rightshift */ | |
924 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
925 | 16, /* bitsize */ | |
926 | FALSE, /* pc_relative */ | |
927 | 7, /* bitpos */ | |
928 | complain_overflow_dont,/* complain_on_overflow */ | |
929 | bfd_elf_generic_reloc, /* special_function */ | |
930 | "R_C6000_SBR_L16_B", /* name */ | |
41820509 JM |
931 | TRUE, /* partial_inplace */ |
932 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
933 | 0x007fff80, /* dst_mask */ |
934 | FALSE), /* pcrel_offset */ | |
935 | HOWTO (R_C6000_SBR_L16_H, /* type */ | |
936 | 1, /* rightshift */ | |
937 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
938 | 16, /* bitsize */ | |
939 | FALSE, /* pc_relative */ | |
940 | 7, /* bitpos */ | |
941 | complain_overflow_dont,/* complain_on_overflow */ | |
942 | bfd_elf_generic_reloc, /* special_function */ | |
943 | "R_C6000_SBR_L16_H", /* name */ | |
41820509 JM |
944 | TRUE, /* partial_inplace */ |
945 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
946 | 0x007fff80, /* dst_mask */ |
947 | FALSE), /* pcrel_offset */ | |
948 | HOWTO (R_C6000_SBR_L16_W, /* type */ | |
949 | 2, /* rightshift */ | |
950 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
951 | 16, /* bitsize */ | |
952 | FALSE, /* pc_relative */ | |
953 | 7, /* bitpos */ | |
954 | complain_overflow_dont,/* complain_on_overflow */ | |
955 | bfd_elf_generic_reloc, /* special_function */ | |
956 | "R_C6000_SBR_L16_W", /* name */ | |
41820509 JM |
957 | TRUE, /* partial_inplace */ |
958 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
959 | 0x007fff80, /* dst_mask */ |
960 | FALSE), /* pcrel_offset */ | |
41820509 JM |
961 | EMPTY_HOWTO (R_C6000_SBR_H16_B), |
962 | EMPTY_HOWTO (R_C6000_SBR_H16_H), | |
963 | EMPTY_HOWTO (R_C6000_SBR_H16_W), | |
40b36596 JM |
964 | HOWTO (R_C6000_SBR_GOT_U15_W, /* type */ |
965 | 2, /* rightshift */ | |
966 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
967 | 15, /* bitsize */ | |
968 | FALSE, /* pc_relative */ | |
969 | 8, /* bitpos */ | |
970 | complain_overflow_unsigned,/* complain_on_overflow */ | |
971 | bfd_elf_generic_reloc, /* special_function */ | |
972 | "R_C6000_SBR_GOT_U15_W",/* name */ | |
41820509 JM |
973 | TRUE, /* partial_inplace */ |
974 | 0x007fff00, /* src_mask */ | |
40b36596 JM |
975 | 0x007fff00, /* dst_mask */ |
976 | FALSE), /* pcrel_offset */ | |
977 | HOWTO (R_C6000_SBR_GOT_L16_W, /* type */ | |
978 | 2, /* rightshift */ | |
979 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
980 | 16, /* bitsize */ | |
981 | FALSE, /* pc_relative */ | |
982 | 7, /* bitpos */ | |
983 | complain_overflow_dont,/* complain_on_overflow */ | |
984 | bfd_elf_generic_reloc, /* special_function */ | |
985 | "R_C6000_SBR_GOT_L16_W",/* name */ | |
41820509 JM |
986 | TRUE, /* partial_inplace */ |
987 | 0x007fff80, /* src_mask */ | |
40b36596 JM |
988 | 0x007fff80, /* dst_mask */ |
989 | FALSE), /* pcrel_offset */ | |
41820509 | 990 | EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W), |
40b36596 JM |
991 | HOWTO (R_C6000_DSBT_INDEX, /* type */ |
992 | 0, /* rightshift */ | |
993 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
994 | 15, /* bitsize */ | |
995 | FALSE, /* pc_relative */ | |
996 | 8, /* bitpos */ | |
997 | complain_overflow_unsigned,/* complain_on_overflow */ | |
998 | bfd_elf_generic_reloc, /* special_function */ | |
999 | "R_C6000_DSBT_INDEX", /* name */ | |
41820509 | 1000 | TRUE, /* partial_inplace */ |
40b36596 JM |
1001 | 0, /* src_mask */ |
1002 | 0x007fff00, /* dst_mask */ | |
1003 | FALSE), /* pcrel_offset */ | |
1004 | HOWTO (R_C6000_PREL31, /* type */ | |
1005 | 1, /* rightshift */ | |
1006 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1007 | 31, /* bitsize */ | |
1008 | FALSE, /* pc_relative */ | |
1009 | 0, /* bitpos */ | |
1010 | complain_overflow_dont,/* complain_on_overflow */ | |
1011 | bfd_elf_generic_reloc, /* special_function */ | |
1012 | "R_C6000_PREL31", /* name */ | |
41820509 | 1013 | TRUE, /* partial_inplace */ |
40b36596 JM |
1014 | 0, /* src_mask */ |
1015 | 0x7fffffff, /* dst_mask */ | |
1016 | FALSE), /* pcrel_offset */ | |
1017 | HOWTO (R_C6000_COPY, /* type */ | |
1018 | 0, /* rightshift */ | |
1019 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1020 | 32, /* bitsize */ | |
1021 | FALSE, /* pc_relative */ | |
1022 | 0, /* bitpos */ | |
1023 | complain_overflow_dont,/* complain_on_overflow */ | |
1024 | bfd_elf_generic_reloc, /* special_function */ | |
1025 | "R_C6000_COPY", /* name */ | |
41820509 | 1026 | TRUE, /* partial_inplace */ |
40b36596 JM |
1027 | 0, /* src_mask */ |
1028 | 0xffffffff, /* dst_mask */ | |
1029 | FALSE), /* pcrel_offset */ | |
ac145307 BS |
1030 | HOWTO (R_C6000_JUMP_SLOT, /* type */ |
1031 | 0, /* rightshift */ | |
1032 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1033 | 32, /* bitsize */ | |
1034 | FALSE, /* pc_relative */ | |
1035 | 0, /* bitpos */ | |
1036 | complain_overflow_dont,/* complain_on_overflow */ | |
1037 | bfd_elf_generic_reloc, /* special_function */ | |
1038 | "R_C6000_JUMP_SLOT", /* name */ | |
1039 | FALSE, /* partial_inplace */ | |
1040 | 0, /* src_mask */ | |
1041 | 0xffffffff, /* dst_mask */ | |
1042 | FALSE), /* pcrel_offset */ | |
40b36596 JM |
1043 | EMPTY_HOWTO (28), |
1044 | EMPTY_HOWTO (29), | |
1045 | EMPTY_HOWTO (30), | |
1046 | EMPTY_HOWTO (31), | |
1047 | EMPTY_HOWTO (32), | |
1048 | EMPTY_HOWTO (33), | |
1049 | EMPTY_HOWTO (34), | |
1050 | EMPTY_HOWTO (35), | |
1051 | EMPTY_HOWTO (36), | |
1052 | EMPTY_HOWTO (37), | |
1053 | EMPTY_HOWTO (38), | |
1054 | EMPTY_HOWTO (39), | |
1055 | EMPTY_HOWTO (40), | |
1056 | EMPTY_HOWTO (41), | |
1057 | EMPTY_HOWTO (42), | |
1058 | EMPTY_HOWTO (43), | |
1059 | EMPTY_HOWTO (44), | |
1060 | EMPTY_HOWTO (45), | |
1061 | EMPTY_HOWTO (46), | |
1062 | EMPTY_HOWTO (47), | |
1063 | EMPTY_HOWTO (48), | |
1064 | EMPTY_HOWTO (49), | |
1065 | EMPTY_HOWTO (50), | |
1066 | EMPTY_HOWTO (51), | |
1067 | EMPTY_HOWTO (52), | |
1068 | EMPTY_HOWTO (53), | |
1069 | EMPTY_HOWTO (54), | |
1070 | EMPTY_HOWTO (55), | |
1071 | EMPTY_HOWTO (56), | |
1072 | EMPTY_HOWTO (57), | |
1073 | EMPTY_HOWTO (58), | |
1074 | EMPTY_HOWTO (59), | |
1075 | EMPTY_HOWTO (60), | |
1076 | EMPTY_HOWTO (61), | |
1077 | EMPTY_HOWTO (62), | |
1078 | EMPTY_HOWTO (63), | |
1079 | EMPTY_HOWTO (64), | |
1080 | EMPTY_HOWTO (65), | |
1081 | EMPTY_HOWTO (66), | |
1082 | EMPTY_HOWTO (67), | |
1083 | EMPTY_HOWTO (68), | |
1084 | EMPTY_HOWTO (69), | |
1085 | EMPTY_HOWTO (70), | |
1086 | EMPTY_HOWTO (71), | |
1087 | EMPTY_HOWTO (72), | |
1088 | EMPTY_HOWTO (73), | |
1089 | EMPTY_HOWTO (74), | |
1090 | EMPTY_HOWTO (75), | |
1091 | EMPTY_HOWTO (76), | |
1092 | EMPTY_HOWTO (77), | |
1093 | EMPTY_HOWTO (78), | |
1094 | EMPTY_HOWTO (79), | |
1095 | EMPTY_HOWTO (80), | |
1096 | EMPTY_HOWTO (81), | |
1097 | EMPTY_HOWTO (82), | |
1098 | EMPTY_HOWTO (83), | |
1099 | EMPTY_HOWTO (84), | |
1100 | EMPTY_HOWTO (85), | |
1101 | EMPTY_HOWTO (86), | |
1102 | EMPTY_HOWTO (87), | |
1103 | EMPTY_HOWTO (88), | |
1104 | EMPTY_HOWTO (89), | |
1105 | EMPTY_HOWTO (90), | |
1106 | EMPTY_HOWTO (91), | |
1107 | EMPTY_HOWTO (92), | |
1108 | EMPTY_HOWTO (93), | |
1109 | EMPTY_HOWTO (94), | |
1110 | EMPTY_HOWTO (95), | |
1111 | EMPTY_HOWTO (96), | |
1112 | EMPTY_HOWTO (97), | |
1113 | EMPTY_HOWTO (98), | |
1114 | EMPTY_HOWTO (99), | |
1115 | EMPTY_HOWTO (100), | |
1116 | EMPTY_HOWTO (101), | |
1117 | EMPTY_HOWTO (102), | |
1118 | EMPTY_HOWTO (103), | |
1119 | EMPTY_HOWTO (104), | |
1120 | EMPTY_HOWTO (105), | |
1121 | EMPTY_HOWTO (106), | |
1122 | EMPTY_HOWTO (107), | |
1123 | EMPTY_HOWTO (108), | |
1124 | EMPTY_HOWTO (109), | |
1125 | EMPTY_HOWTO (110), | |
1126 | EMPTY_HOWTO (111), | |
1127 | EMPTY_HOWTO (112), | |
1128 | EMPTY_HOWTO (113), | |
1129 | EMPTY_HOWTO (114), | |
1130 | EMPTY_HOWTO (115), | |
1131 | EMPTY_HOWTO (116), | |
1132 | EMPTY_HOWTO (117), | |
1133 | EMPTY_HOWTO (118), | |
1134 | EMPTY_HOWTO (119), | |
1135 | EMPTY_HOWTO (120), | |
1136 | EMPTY_HOWTO (121), | |
1137 | EMPTY_HOWTO (122), | |
1138 | EMPTY_HOWTO (123), | |
1139 | EMPTY_HOWTO (124), | |
1140 | EMPTY_HOWTO (125), | |
1141 | EMPTY_HOWTO (126), | |
1142 | EMPTY_HOWTO (127), | |
1143 | EMPTY_HOWTO (128), | |
1144 | EMPTY_HOWTO (129), | |
1145 | EMPTY_HOWTO (130), | |
1146 | EMPTY_HOWTO (131), | |
1147 | EMPTY_HOWTO (132), | |
1148 | EMPTY_HOWTO (133), | |
1149 | EMPTY_HOWTO (134), | |
1150 | EMPTY_HOWTO (135), | |
1151 | EMPTY_HOWTO (136), | |
1152 | EMPTY_HOWTO (137), | |
1153 | EMPTY_HOWTO (138), | |
1154 | EMPTY_HOWTO (139), | |
1155 | EMPTY_HOWTO (140), | |
1156 | EMPTY_HOWTO (141), | |
1157 | EMPTY_HOWTO (142), | |
1158 | EMPTY_HOWTO (143), | |
1159 | EMPTY_HOWTO (144), | |
1160 | EMPTY_HOWTO (145), | |
1161 | EMPTY_HOWTO (146), | |
1162 | EMPTY_HOWTO (147), | |
1163 | EMPTY_HOWTO (148), | |
1164 | EMPTY_HOWTO (149), | |
1165 | EMPTY_HOWTO (150), | |
1166 | EMPTY_HOWTO (151), | |
1167 | EMPTY_HOWTO (152), | |
1168 | EMPTY_HOWTO (153), | |
1169 | EMPTY_HOWTO (154), | |
1170 | EMPTY_HOWTO (155), | |
1171 | EMPTY_HOWTO (156), | |
1172 | EMPTY_HOWTO (157), | |
1173 | EMPTY_HOWTO (158), | |
1174 | EMPTY_HOWTO (159), | |
1175 | EMPTY_HOWTO (160), | |
1176 | EMPTY_HOWTO (161), | |
1177 | EMPTY_HOWTO (162), | |
1178 | EMPTY_HOWTO (163), | |
1179 | EMPTY_HOWTO (164), | |
1180 | EMPTY_HOWTO (165), | |
1181 | EMPTY_HOWTO (166), | |
1182 | EMPTY_HOWTO (167), | |
1183 | EMPTY_HOWTO (168), | |
1184 | EMPTY_HOWTO (169), | |
1185 | EMPTY_HOWTO (170), | |
1186 | EMPTY_HOWTO (171), | |
1187 | EMPTY_HOWTO (172), | |
1188 | EMPTY_HOWTO (173), | |
1189 | EMPTY_HOWTO (174), | |
1190 | EMPTY_HOWTO (175), | |
1191 | EMPTY_HOWTO (176), | |
1192 | EMPTY_HOWTO (177), | |
1193 | EMPTY_HOWTO (178), | |
1194 | EMPTY_HOWTO (179), | |
1195 | EMPTY_HOWTO (180), | |
1196 | EMPTY_HOWTO (181), | |
1197 | EMPTY_HOWTO (182), | |
1198 | EMPTY_HOWTO (183), | |
1199 | EMPTY_HOWTO (184), | |
1200 | EMPTY_HOWTO (185), | |
1201 | EMPTY_HOWTO (186), | |
1202 | EMPTY_HOWTO (187), | |
1203 | EMPTY_HOWTO (188), | |
1204 | EMPTY_HOWTO (189), | |
1205 | EMPTY_HOWTO (190), | |
1206 | EMPTY_HOWTO (191), | |
1207 | EMPTY_HOWTO (192), | |
1208 | EMPTY_HOWTO (193), | |
1209 | EMPTY_HOWTO (194), | |
1210 | EMPTY_HOWTO (195), | |
1211 | EMPTY_HOWTO (196), | |
1212 | EMPTY_HOWTO (197), | |
1213 | EMPTY_HOWTO (198), | |
1214 | EMPTY_HOWTO (199), | |
1215 | EMPTY_HOWTO (200), | |
1216 | EMPTY_HOWTO (201), | |
1217 | EMPTY_HOWTO (202), | |
1218 | EMPTY_HOWTO (203), | |
1219 | EMPTY_HOWTO (204), | |
1220 | EMPTY_HOWTO (205), | |
1221 | EMPTY_HOWTO (206), | |
1222 | EMPTY_HOWTO (207), | |
1223 | EMPTY_HOWTO (208), | |
1224 | EMPTY_HOWTO (209), | |
1225 | EMPTY_HOWTO (210), | |
1226 | EMPTY_HOWTO (211), | |
1227 | EMPTY_HOWTO (212), | |
1228 | EMPTY_HOWTO (213), | |
1229 | EMPTY_HOWTO (214), | |
1230 | EMPTY_HOWTO (215), | |
1231 | EMPTY_HOWTO (216), | |
1232 | EMPTY_HOWTO (217), | |
1233 | EMPTY_HOWTO (218), | |
1234 | EMPTY_HOWTO (219), | |
1235 | EMPTY_HOWTO (220), | |
1236 | EMPTY_HOWTO (221), | |
1237 | EMPTY_HOWTO (222), | |
1238 | EMPTY_HOWTO (223), | |
1239 | EMPTY_HOWTO (224), | |
1240 | EMPTY_HOWTO (225), | |
1241 | EMPTY_HOWTO (226), | |
1242 | EMPTY_HOWTO (227), | |
1243 | EMPTY_HOWTO (228), | |
1244 | EMPTY_HOWTO (229), | |
1245 | EMPTY_HOWTO (230), | |
1246 | EMPTY_HOWTO (231), | |
1247 | EMPTY_HOWTO (232), | |
1248 | EMPTY_HOWTO (233), | |
1249 | EMPTY_HOWTO (234), | |
1250 | EMPTY_HOWTO (235), | |
1251 | EMPTY_HOWTO (236), | |
1252 | EMPTY_HOWTO (237), | |
1253 | EMPTY_HOWTO (238), | |
1254 | EMPTY_HOWTO (239), | |
1255 | EMPTY_HOWTO (240), | |
1256 | EMPTY_HOWTO (241), | |
1257 | EMPTY_HOWTO (242), | |
1258 | EMPTY_HOWTO (243), | |
1259 | EMPTY_HOWTO (244), | |
1260 | EMPTY_HOWTO (245), | |
1261 | EMPTY_HOWTO (246), | |
1262 | EMPTY_HOWTO (247), | |
1263 | EMPTY_HOWTO (248), | |
1264 | EMPTY_HOWTO (249), | |
1265 | EMPTY_HOWTO (250), | |
1266 | EMPTY_HOWTO (251), | |
1267 | EMPTY_HOWTO (252), | |
1268 | HOWTO (R_C6000_ALIGN, /* type */ | |
1269 | 0, /* rightshift */ | |
1270 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1271 | 0, /* bitsize */ | |
1272 | FALSE, /* pc_relative */ | |
1273 | 0, /* bitpos */ | |
1274 | complain_overflow_dont,/* complain_on_overflow */ | |
1275 | bfd_elf_generic_reloc, /* special_function */ | |
1276 | "R_C6000_ALIGN", /* name */ | |
41820509 | 1277 | TRUE, /* partial_inplace */ |
40b36596 JM |
1278 | 0, /* src_mask */ |
1279 | 0, /* dst_mask */ | |
1280 | FALSE), /* pcrel_offset */ | |
1281 | HOWTO (R_C6000_FPHEAD, /* type */ | |
1282 | 0, /* rightshift */ | |
1283 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1284 | 0, /* bitsize */ | |
1285 | FALSE, /* pc_relative */ | |
1286 | 0, /* bitpos */ | |
1287 | complain_overflow_dont,/* complain_on_overflow */ | |
1288 | bfd_elf_generic_reloc, /* special_function */ | |
1289 | "R_C6000_FPHEAD", /* name */ | |
41820509 | 1290 | TRUE, /* partial_inplace */ |
40b36596 JM |
1291 | 0, /* src_mask */ |
1292 | 0, /* dst_mask */ | |
1293 | FALSE), /* pcrel_offset */ | |
1294 | HOWTO (R_C6000_NOCMP, /* type */ | |
1295 | 0, /* rightshift */ | |
1296 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1297 | 0, /* bitsize */ | |
1298 | FALSE, /* pc_relative */ | |
1299 | 0, /* bitpos */ | |
1300 | complain_overflow_dont,/* complain_on_overflow */ | |
1301 | bfd_elf_generic_reloc, /* special_function */ | |
1302 | "R_C6000_NOCMP", /* name */ | |
41820509 | 1303 | TRUE, /* partial_inplace */ |
40b36596 JM |
1304 | 0, /* src_mask */ |
1305 | 0, /* dst_mask */ | |
1306 | FALSE) /* pcrel_offset */ | |
1307 | }; | |
1308 | ||
1309 | /* Map BFD relocations to ELF relocations. */ | |
1310 | ||
1311 | typedef struct | |
1312 | { | |
1313 | bfd_reloc_code_real_type bfd_reloc_val; | |
1314 | enum elf_tic6x_reloc_type elf_reloc_val; | |
1315 | } tic6x_reloc_map; | |
1316 | ||
1317 | static const tic6x_reloc_map elf32_tic6x_reloc_map[] = | |
1318 | { | |
1319 | { BFD_RELOC_NONE, R_C6000_NONE }, | |
1320 | { BFD_RELOC_32, R_C6000_ABS32 }, | |
1321 | { BFD_RELOC_16, R_C6000_ABS16 }, | |
1322 | { BFD_RELOC_8, R_C6000_ABS8 }, | |
1323 | { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 }, | |
1324 | { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 }, | |
1325 | { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 }, | |
1326 | { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 }, | |
1327 | { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 }, | |
1328 | { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 }, | |
1329 | { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 }, | |
1330 | { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B }, | |
1331 | { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H }, | |
1332 | { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W }, | |
1333 | { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 }, | |
1334 | { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B }, | |
1335 | { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H }, | |
1336 | { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W }, | |
1337 | { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B }, | |
1338 | { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H }, | |
1339 | { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W }, | |
1340 | { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W }, | |
1341 | { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W }, | |
1342 | { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W }, | |
1343 | { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX }, | |
1344 | { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 }, | |
1345 | { BFD_RELOC_C6000_COPY, R_C6000_COPY }, | |
ac145307 BS |
1346 | { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT }, |
1347 | { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE }, | |
1348 | { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 }, | |
1349 | { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 }, | |
40b36596 JM |
1350 | { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN }, |
1351 | { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD }, | |
1352 | { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP } | |
1353 | }; | |
1354 | ||
1355 | static reloc_howto_type * | |
41820509 | 1356 | elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) |
40b36596 JM |
1357 | { |
1358 | unsigned int i; | |
1359 | ||
1360 | for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++) | |
1361 | if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code) | |
41820509 JM |
1362 | { |
1363 | enum elf_tic6x_reloc_type elf_reloc_val; | |
1364 | reloc_howto_type *howto; | |
1365 | ||
1366 | elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val; | |
1367 | if (elf32_tic6x_tdata (abfd)->use_rela_p) | |
1368 | howto = &elf32_tic6x_howto_table[elf_reloc_val]; | |
1369 | else | |
1370 | howto = &elf32_tic6x_howto_table_rel[elf_reloc_val]; | |
1371 | ||
1372 | /* Some relocations are RELA-only; do not return them for | |
1373 | REL. */ | |
1374 | if (howto->name == NULL) | |
1375 | howto = NULL; | |
1376 | ||
1377 | return howto; | |
1378 | } | |
40b36596 JM |
1379 | |
1380 | return NULL; | |
1381 | } | |
1382 | ||
1383 | static reloc_howto_type * | |
41820509 | 1384 | elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name) |
40b36596 | 1385 | { |
41820509 JM |
1386 | if (elf32_tic6x_tdata (abfd)->use_rela_p) |
1387 | { | |
1388 | unsigned int i; | |
1389 | ||
1390 | for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++) | |
1391 | if (elf32_tic6x_howto_table[i].name != NULL | |
1392 | && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0) | |
1393 | return &elf32_tic6x_howto_table[i]; | |
1394 | } | |
1395 | else | |
1396 | { | |
1397 | unsigned int i; | |
40b36596 | 1398 | |
41820509 JM |
1399 | for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++) |
1400 | if (elf32_tic6x_howto_table_rel[i].name != NULL | |
1401 | && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0) | |
1402 | return &elf32_tic6x_howto_table_rel[i]; | |
1403 | } | |
40b36596 JM |
1404 | |
1405 | return NULL; | |
1406 | } | |
1407 | ||
1408 | static void | |
1409 | elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, | |
1410 | Elf_Internal_Rela *elf_reloc) | |
1411 | { | |
1412 | unsigned int r_type; | |
1413 | ||
1414 | r_type = ELF32_R_TYPE (elf_reloc->r_info); | |
1415 | if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table)) | |
1416 | bfd_reloc->howto = NULL; | |
1417 | else | |
1418 | bfd_reloc->howto = &elf32_tic6x_howto_table[r_type]; | |
1419 | } | |
1420 | ||
41820509 JM |
1421 | static void |
1422 | elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, | |
1423 | Elf_Internal_Rela *elf_reloc) | |
1424 | { | |
1425 | unsigned int r_type; | |
1426 | ||
1427 | r_type = ELF32_R_TYPE (elf_reloc->r_info); | |
1428 | if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel)) | |
1429 | bfd_reloc->howto = NULL; | |
1430 | else | |
1431 | bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type]; | |
1432 | } | |
1433 | ||
1434 | void | |
1435 | elf32_tic6x_set_use_rela_p (bfd *abfd, bfd_boolean use_rela_p) | |
1436 | { | |
1437 | elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p; | |
1438 | } | |
1439 | ||
ac145307 BS |
1440 | /* Create an entry in a C6X ELF linker hash table. */ |
1441 | ||
1442 | static struct bfd_hash_entry * | |
1443 | elf32_tic6x_link_hash_newfunc (struct bfd_hash_entry *entry, | |
1444 | struct bfd_hash_table *table, | |
1445 | const char *string) | |
1446 | { | |
1447 | /* Allocate the structure if it has not already been allocated by a | |
1448 | subclass. */ | |
1449 | if (entry == NULL) | |
1450 | { | |
1451 | entry = bfd_hash_allocate (table, | |
1452 | sizeof (struct elf32_tic6x_link_hash_entry)); | |
1453 | if (entry == NULL) | |
1454 | return entry; | |
1455 | } | |
1456 | ||
1457 | /* Call the allocation method of the superclass. */ | |
1458 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
1459 | if (entry != NULL) | |
1460 | { | |
1461 | struct elf32_tic6x_link_hash_entry *eh; | |
1462 | ||
1463 | eh = (struct elf32_tic6x_link_hash_entry *) entry; | |
1464 | eh->dyn_relocs = NULL; | |
1465 | } | |
1466 | ||
1467 | return entry; | |
1468 | } | |
1469 | ||
1470 | /* Create a C6X ELF linker hash table. */ | |
1471 | ||
1472 | static struct bfd_link_hash_table * | |
1473 | elf32_tic6x_link_hash_table_create (bfd *abfd) | |
1474 | { | |
1475 | struct elf32_tic6x_link_hash_table *ret; | |
1476 | bfd_size_type amt = sizeof (struct elf32_tic6x_link_hash_table); | |
1477 | ||
1478 | ret = bfd_malloc (amt); | |
1479 | if (ret == NULL) | |
1480 | return NULL; | |
1481 | ||
1482 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, | |
1483 | elf32_tic6x_link_hash_newfunc, | |
1484 | sizeof (struct elf32_tic6x_link_hash_entry), | |
1485 | TIC6X_ELF_DATA)) | |
1486 | { | |
1487 | free (ret); | |
1488 | return NULL; | |
1489 | } | |
1490 | ||
1491 | ret->sym_cache.abfd = NULL; | |
1492 | ret->obfd = abfd; | |
1493 | ret->elf.is_relocatable_executable = 1; | |
1494 | ||
1495 | return &ret->elf.root; | |
1496 | } | |
1497 | ||
1498 | /* Destroy a C6X ELF linker hash table. */ | |
1499 | ||
1500 | static void | |
1501 | elf32_tic6x_link_hash_table_free (struct bfd_link_hash_table *hash) | |
1502 | { | |
1503 | _bfd_generic_link_hash_table_free (hash); | |
1504 | } | |
1505 | ||
1506 | /* Called to pass PARAMS to the backend. We store them in the hash table | |
1507 | associated with INFO. */ | |
1508 | ||
1509 | void | |
1510 | elf32_tic6x_setup (struct bfd_link_info *info, | |
1511 | struct elf32_tic6x_params *params) | |
1512 | { | |
1513 | struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info); | |
1514 | htab->params = *params; | |
1515 | } | |
1516 | ||
1517 | /* Determine if we're dealing with a DSBT object. */ | |
1518 | ||
1519 | static bfd_boolean | |
1520 | elf32_tic6x_using_dsbt (bfd *abfd) | |
1521 | { | |
1522 | return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC, | |
1523 | Tag_ABI_DSBT); | |
1524 | } | |
1525 | ||
1526 | /* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt | |
1527 | sections in DYNOBJ, and set up shortcuts to them in our hash | |
1528 | table. */ | |
1529 | ||
1530 | static bfd_boolean | |
1531 | elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) | |
1532 | { | |
1533 | struct elf32_tic6x_link_hash_table *htab; | |
1534 | flagword flags; | |
1535 | ||
1536 | htab = elf32_tic6x_hash_table (info); | |
1537 | if (htab == NULL) | |
1538 | return FALSE; | |
1539 | ||
1540 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
1541 | return FALSE; | |
1542 | ||
1543 | /* Create .dsbt */ | |
1544 | flags = (SEC_ALLOC | SEC_LOAD | |
1545 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1546 | htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt", | |
1547 | flags); | |
1548 | if (htab->dsbt == NULL | |
1549 | || ! bfd_set_section_alignment (dynobj, htab->dsbt, 2) | |
1550 | || ! bfd_set_section_alignment (dynobj, htab->elf.splt, 5)) | |
1551 | return FALSE; | |
1552 | ||
1553 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
1554 | if (!info->shared) | |
1555 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
1556 | ||
1557 | if (!htab->sdynbss | |
1558 | || (!info->shared && !htab->srelbss)) | |
1559 | abort (); | |
1560 | ||
1561 | return TRUE; | |
1562 | } | |
1563 | ||
41820509 JM |
1564 | static bfd_boolean |
1565 | elf32_tic6x_mkobject (bfd *abfd) | |
1566 | { | |
1567 | bfd_boolean ret; | |
1568 | ||
1569 | ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata), | |
1570 | TIC6X_ELF_DATA); | |
1571 | if (ret) | |
1572 | elf32_tic6x_set_use_rela_p (abfd, TRUE); | |
1573 | return ret; | |
1574 | } | |
1575 | ||
ac145307 BS |
1576 | /* Install relocation RELA into section SRELA, incrementing its |
1577 | reloc_count. */ | |
1578 | ||
1579 | static void | |
1580 | elf32_tic6x_install_rela (bfd *output_bfd, asection *srela, | |
1581 | Elf_Internal_Rela *rela) | |
1582 | { | |
1583 | bfd_byte *loc; | |
1584 | bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela); | |
1585 | loc = srela->contents + off; | |
1586 | BFD_ASSERT (off < srela->size); | |
1587 | bfd_elf32_swap_reloca_out (output_bfd, rela, loc); | |
1588 | } | |
1589 | ||
1590 | /* Create a dynamic reloc against the GOT at offset OFFSET. The contents | |
1591 | of the GOT at this offset have been initialized with the relocation. */ | |
1592 | ||
1593 | static void | |
1594 | elf32_tic6x_make_got_dynreloc (bfd *output_bfd, | |
1595 | struct elf32_tic6x_link_hash_table *htab, | |
1596 | asection *sym_sec, bfd_vma offset) | |
1597 | { | |
1598 | asection *sgot = htab->elf.sgot; | |
1599 | Elf_Internal_Rela outrel; | |
1600 | int dynindx; | |
1601 | ||
1602 | outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset; | |
1603 | outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset); | |
1604 | if (sym_sec && sym_sec->output_section | |
1605 | && ! bfd_is_abs_section (sym_sec->output_section) | |
1606 | && ! bfd_is_und_section (sym_sec->output_section)) | |
1607 | { | |
1608 | dynindx = elf_section_data (sym_sec->output_section)->dynindx; | |
1609 | outrel.r_addend -= sym_sec->output_section->vma; | |
1610 | } | |
1611 | else | |
1612 | { | |
1613 | dynindx = 0; | |
1614 | } | |
1615 | outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32); | |
1616 | elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel); | |
1617 | } | |
1618 | ||
1619 | /* Finish up dynamic symbol handling. We set the contents of various | |
1620 | dynamic sections here. */ | |
1621 | ||
1622 | static bfd_boolean | |
1623 | elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd, | |
1624 | struct bfd_link_info *info, | |
1625 | struct elf_link_hash_entry *h, | |
1626 | Elf_Internal_Sym * sym) | |
1627 | { | |
1628 | bfd *dynobj; | |
1629 | struct elf32_tic6x_link_hash_table *htab; | |
1630 | ||
1631 | htab = elf32_tic6x_hash_table (info); | |
1632 | dynobj = htab->elf.dynobj; | |
1633 | ||
1634 | if (h->plt.offset != (bfd_vma) -1) | |
1635 | { | |
1636 | bfd_vma plt_index; | |
1637 | bfd_vma got_section_offset, got_dp_offset, rela_offset; | |
1638 | Elf_Internal_Rela rela; | |
1639 | bfd_byte *loc; | |
1640 | asection *plt, *gotplt, *relplt; | |
1641 | const struct elf_backend_data *bed; | |
1642 | ||
1643 | bed = get_elf_backend_data (output_bfd); | |
1644 | ||
1645 | BFD_ASSERT (htab->elf.splt != NULL); | |
1646 | plt = htab->elf.splt; | |
1647 | gotplt = htab->elf.sgotplt; | |
1648 | relplt = htab->elf.srelplt; | |
1649 | ||
1650 | /* This symbol has an entry in the procedure linkage table. Set | |
1651 | it up. */ | |
1652 | ||
1653 | if ((h->dynindx == -1 | |
1654 | && !((h->forced_local || info->executable) | |
1655 | && h->def_regular | |
1656 | && h->type == STT_GNU_IFUNC)) | |
1657 | || plt == NULL | |
1658 | || gotplt == NULL | |
1659 | || relplt == NULL) | |
1660 | abort (); | |
1661 | ||
1662 | /* Get the index in the procedure linkage table which | |
1663 | corresponds to this symbol. This is the index of this symbol | |
1664 | in all the symbols for which we are making plt entries. The | |
1665 | first entry in the procedure linkage table is reserved. | |
1666 | ||
1667 | Get the offset into the .got table of the entry that | |
1668 | corresponds to this function. Each .got entry is 4 bytes. | |
1669 | The first three are reserved. | |
1670 | ||
1671 | For static executables, we don't reserve anything. */ | |
1672 | ||
1673 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
1674 | got_section_offset = plt_index + bed->got_header_size / 4; | |
1675 | got_dp_offset = got_section_offset + htab->params.dsbt_size; | |
1676 | rela_offset = plt_index * sizeof (Elf32_External_Rela); | |
1677 | ||
1678 | got_section_offset *= 4; | |
1679 | ||
1680 | /* Fill in the entry in the procedure linkage table. */ | |
1681 | ||
1682 | /* ldw .d2t2 *+B14($GOT(f)), b2 */ | |
1683 | bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e, | |
1684 | plt->contents + h->plt.offset); | |
1685 | /* mvk .s2 low(rela_offset), b0 */ | |
1686 | bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a, | |
1687 | plt->contents + h->plt.offset + 4); | |
1688 | /* mvkh .s2 high(rela_offset), b0 */ | |
1689 | bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a, | |
1690 | plt->contents + h->plt.offset + 8); | |
1691 | /* nop 2 */ | |
1692 | bfd_put_32 (output_bfd, 0x00002000, | |
1693 | plt->contents + h->plt.offset + 12); | |
1694 | /* b .s2 b2 */ | |
1695 | bfd_put_32 (output_bfd, 0x00080362, | |
1696 | plt->contents + h->plt.offset + 16); | |
1697 | /* nop 5 */ | |
1698 | bfd_put_32 (output_bfd, 0x00008000, | |
1699 | plt->contents + h->plt.offset + 20); | |
1700 | ||
1701 | /* Fill in the entry in the global offset table. */ | |
1702 | bfd_put_32 (output_bfd, | |
1703 | (plt->output_section->vma + plt->output_offset), | |
1704 | gotplt->contents + got_section_offset); | |
1705 | ||
1706 | /* Fill in the entry in the .rel.plt section. */ | |
1707 | rela.r_offset = (gotplt->output_section->vma | |
1708 | + gotplt->output_offset | |
1709 | + got_section_offset); | |
1710 | rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT); | |
1711 | rela.r_addend = 0; | |
1712 | loc = relplt->contents + rela_offset; | |
1713 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1714 | ||
1715 | if (!h->def_regular) | |
1716 | { | |
1717 | /* Mark the symbol as undefined, rather than as defined in | |
1718 | the .plt section. */ | |
1719 | sym->st_shndx = SHN_UNDEF; | |
1720 | sym->st_value = 0; | |
1721 | } | |
1722 | } | |
1723 | ||
1724 | if (h->got.offset != (bfd_vma) -1) | |
1725 | { | |
1726 | asection *sgot; | |
1727 | asection *srela; | |
1728 | ||
1729 | /* This symbol has an entry in the global offset table. | |
1730 | Set it up. */ | |
1731 | ||
1732 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1733 | srela = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1734 | BFD_ASSERT (sgot != NULL && srela != NULL); | |
1735 | ||
1736 | /* If this is a -Bsymbolic link, and the symbol is defined | |
1737 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
1738 | the symbol was forced to be local because of a version file. | |
1739 | The entry in the global offset table will already have been | |
1740 | initialized in the relocate_section function. */ | |
1741 | if (info->shared | |
1742 | && (info->symbolic | |
1743 | || h->dynindx == -1 || h->forced_local) && h->def_regular) | |
1744 | { | |
1745 | asection *s = h->root.u.def.section; | |
1746 | elf32_tic6x_make_got_dynreloc (output_bfd, htab, s, | |
1747 | h->got.offset & ~(bfd_vma) 1); | |
1748 | } | |
1749 | else | |
1750 | { | |
1751 | Elf_Internal_Rela outrel; | |
1752 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
1753 | sgot->contents + (h->got.offset & ~(bfd_vma) 1)); | |
1754 | outrel.r_offset = (sgot->output_section->vma | |
1755 | + sgot->output_offset | |
1756 | + (h->got.offset & ~(bfd_vma) 1)); | |
1757 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32); | |
1758 | outrel.r_addend = 0; | |
1759 | ||
1760 | elf32_tic6x_install_rela (output_bfd, srela, &outrel); | |
1761 | } | |
1762 | } | |
1763 | ||
1764 | if (h->needs_copy) | |
1765 | { | |
1766 | Elf_Internal_Rela rel; | |
1767 | ||
1768 | /* This symbol needs a copy reloc. Set it up. */ | |
1769 | ||
1770 | if (h->dynindx == -1 | |
1771 | || (h->root.type != bfd_link_hash_defined | |
1772 | && h->root.type != bfd_link_hash_defweak) | |
1773 | || htab->srelbss == NULL) | |
1774 | abort (); | |
1775 | ||
1776 | rel.r_offset = (h->root.u.def.value | |
1777 | + h->root.u.def.section->output_section->vma | |
1778 | + h->root.u.def.section->output_offset); | |
1779 | rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY); | |
1780 | rel.r_addend = 0; | |
1781 | ||
1782 | elf32_tic6x_install_rela (output_bfd, htab->srelbss, &rel); | |
1783 | } | |
1784 | ||
1785 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
1786 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
1787 | || h == elf_hash_table (info)->hgot) | |
1788 | sym->st_shndx = SHN_ABS; | |
1789 | ||
1790 | return TRUE; | |
1791 | } | |
1792 | ||
1793 | /* Update the got entry reference counts for the section being removed. */ | |
1794 | ||
1795 | static bfd_boolean | |
1796 | elf32_tic6x_gc_sweep_hook (bfd *abfd, | |
1797 | struct bfd_link_info *info, | |
1798 | asection *sec, | |
1799 | const Elf_Internal_Rela *relocs) | |
1800 | { | |
1801 | struct elf32_tic6x_link_hash_table *htab; | |
1802 | Elf_Internal_Shdr *symtab_hdr; | |
1803 | struct elf_link_hash_entry **sym_hashes; | |
1804 | bfd_signed_vma *local_got_refcounts; | |
1805 | const Elf_Internal_Rela *rel, *relend; | |
1806 | ||
1807 | if (info->relocatable) | |
1808 | return TRUE; | |
1809 | ||
1810 | htab = elf32_tic6x_hash_table (info); | |
1811 | if (htab == NULL) | |
1812 | return FALSE; | |
1813 | ||
1814 | elf_section_data (sec)->local_dynrel = NULL; | |
1815 | ||
1816 | symtab_hdr = &elf_symtab_hdr (abfd); | |
1817 | sym_hashes = elf_sym_hashes (abfd); | |
1818 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1819 | ||
1820 | relend = relocs + sec->reloc_count; | |
1821 | for (rel = relocs; rel < relend; rel++) | |
1822 | { | |
1823 | unsigned long r_symndx; | |
1824 | unsigned int r_type; | |
1825 | struct elf_link_hash_entry *h = NULL; | |
1826 | ||
1827 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1828 | if (r_symndx >= symtab_hdr->sh_info) | |
1829 | { | |
1830 | struct elf32_tic6x_link_hash_entry *eh; | |
1831 | struct elf_dyn_relocs **pp; | |
1832 | struct elf_dyn_relocs *p; | |
1833 | ||
1834 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1835 | while (h->root.type == bfd_link_hash_indirect | |
1836 | || h->root.type == bfd_link_hash_warning) | |
1837 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1838 | eh = (struct elf32_tic6x_link_hash_entry *) h; | |
1839 | ||
1840 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1841 | if (p->sec == sec) | |
1842 | { | |
1843 | /* Everything must go for SEC. */ | |
1844 | *pp = p->next; | |
1845 | break; | |
1846 | } | |
1847 | } | |
1848 | ||
1849 | r_type = ELF32_R_TYPE (rel->r_info); | |
1850 | ||
1851 | switch (r_type) | |
1852 | { | |
1853 | case R_C6000_SBR_GOT_U15_W: | |
1854 | case R_C6000_SBR_GOT_L16_W: | |
1855 | case R_C6000_SBR_GOT_H16_W: | |
1856 | if (h != NULL) | |
1857 | { | |
1858 | if (h->got.refcount > 0) | |
1859 | h->got.refcount -= 1; | |
1860 | } | |
1861 | else if (local_got_refcounts != NULL) | |
1862 | { | |
1863 | if (local_got_refcounts[r_symndx] > 0) | |
1864 | local_got_refcounts[r_symndx] -= 1; | |
1865 | } | |
1866 | break; | |
1867 | ||
1868 | default: | |
1869 | break; | |
1870 | } | |
1871 | } | |
1872 | ||
1873 | return TRUE; | |
1874 | } | |
1875 | ||
1876 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1877 | regular object. The current definition is in some section of the | |
1878 | dynamic object, but we're not including those sections. We have to | |
1879 | change the definition to something the rest of the link can | |
1880 | understand. */ | |
1881 | ||
1882 | static bfd_boolean | |
1883 | elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info, | |
1884 | struct elf_link_hash_entry *h) | |
1885 | { | |
1886 | struct elf32_tic6x_link_hash_table *htab; | |
1887 | bfd *dynobj; | |
1888 | asection *s; | |
1889 | ||
1890 | dynobj = elf_hash_table (info)->dynobj; | |
1891 | ||
1892 | /* Make sure we know what is going on here. */ | |
1893 | BFD_ASSERT (dynobj != NULL | |
1894 | && (h->needs_plt | |
1895 | || h->u.weakdef != NULL | |
1896 | || (h->def_dynamic && h->ref_regular && !h->def_regular))); | |
1897 | ||
1898 | /* If this is a function, put it in the procedure linkage table. We | |
1899 | will fill in the contents of the procedure linkage table later, | |
1900 | when we know the address of the .got section. */ | |
1901 | if (h->type == STT_FUNC | |
1902 | || h->needs_plt) | |
1903 | { | |
1904 | if (h->plt.refcount <= 0 | |
1905 | || SYMBOL_CALLS_LOCAL (info, h) | |
1906 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
1907 | && h->root.type == bfd_link_hash_undefweak)) | |
1908 | { | |
1909 | /* This case can occur if we saw a PLT32 reloc in an input | |
1910 | file, but the symbol was never referred to by a dynamic | |
1911 | object, or if all references were garbage collected. In | |
1912 | such a case, we don't actually need to build a procedure | |
1913 | linkage table, and we can just do a PC32 reloc instead. */ | |
1914 | h->plt.offset = (bfd_vma) -1; | |
1915 | h->needs_plt = 0; | |
1916 | } | |
1917 | ||
1918 | return TRUE; | |
1919 | } | |
1920 | ||
1921 | /* If this is a weak symbol, and there is a real definition, the | |
1922 | processor independent code will have arranged for us to see the | |
1923 | real definition first, and we can just use the same value. */ | |
1924 | if (h->u.weakdef != NULL) | |
1925 | { | |
1926 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined | |
1927 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
1928 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
1929 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
1930 | h->non_got_ref = h->u.weakdef->non_got_ref; | |
1931 | return TRUE; | |
1932 | } | |
1933 | ||
1934 | /* This is a reference to a symbol defined by a dynamic object which | |
1935 | is not a function. */ | |
1936 | ||
1937 | /* If we are creating a shared library, we must presume that the | |
1938 | only references to the symbol are via the global offset table. | |
1939 | For such cases we need not do anything here; the relocations will | |
1940 | be handled correctly by relocate_section. */ | |
1941 | if (info->shared) | |
1942 | return TRUE; | |
1943 | ||
1944 | /* If there are no references to this symbol that do not use the | |
1945 | GOT, we don't need to generate a copy reloc. */ | |
1946 | if (!h->non_got_ref) | |
1947 | return TRUE; | |
1948 | ||
1949 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
1950 | if (info->nocopyreloc) | |
1951 | { | |
1952 | h->non_got_ref = 0; | |
1953 | return TRUE; | |
1954 | } | |
1955 | ||
1956 | htab = elf32_tic6x_hash_table (info); | |
1957 | if (htab == NULL) | |
1958 | return FALSE; | |
1959 | ||
1960 | if (h->size == 0) | |
1961 | { | |
1962 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
1963 | h->root.root.string); | |
1964 | return TRUE; | |
1965 | } | |
1966 | ||
1967 | /* We must allocate the symbol in our .dynbss section, which will | |
1968 | become part of the .bss section of the executable. There will be | |
1969 | an entry for this symbol in the .dynsym section. The dynamic | |
1970 | object will contain position independent code, so all references | |
1971 | from the dynamic object to this symbol will go through the global | |
1972 | offset table. The dynamic linker will use the .dynsym entry to | |
1973 | determine the address it must put in the global offset table, so | |
1974 | both the dynamic object and the regular object will refer to the | |
1975 | same memory location for the variable. */ | |
1976 | ||
1977 | /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to | |
1978 | copy the initial value out of the dynamic object and into the | |
1979 | runtime process image. */ | |
1980 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1981 | { | |
1982 | htab->srelbss->size += sizeof (Elf32_External_Rela); | |
1983 | h->needs_copy = 1; | |
1984 | } | |
1985 | ||
1986 | s = htab->sdynbss; | |
1987 | ||
1988 | return _bfd_elf_adjust_dynamic_copy (h, s); | |
1989 | } | |
1990 | ||
41820509 JM |
1991 | static bfd_boolean |
1992 | elf32_tic6x_new_section_hook (bfd *abfd, asection *sec) | |
1993 | { | |
1994 | bfd_boolean ret; | |
1995 | ||
1996 | ret = _bfd_elf_new_section_hook (abfd, sec); | |
1997 | sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p; | |
1998 | ||
1999 | return ret; | |
2000 | } | |
2001 | ||
2002 | /* Return true if relocation REL against section SEC is a REL rather | |
2003 | than RELA relocation. RELOCS is the first relocation in the | |
2004 | section and ABFD is the bfd that contains SEC. */ | |
2005 | ||
2006 | static bfd_boolean | |
2007 | elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec, | |
2008 | const Elf_Internal_Rela *relocs, | |
2009 | const Elf_Internal_Rela *rel) | |
2010 | { | |
2011 | Elf_Internal_Shdr *rel_hdr; | |
2012 | const struct elf_backend_data *bed; | |
2013 | ||
2014 | /* To determine which flavor of relocation this is, we depend on the | |
d4730f92 BS |
2015 | fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */ |
2016 | rel_hdr = elf_section_data (sec)->rel.hdr; | |
2017 | if (rel_hdr == NULL) | |
2018 | return FALSE; | |
41820509 | 2019 | bed = get_elf_backend_data (abfd); |
d4730f92 BS |
2020 | return ((size_t) (rel - relocs) |
2021 | < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel); | |
41820509 JM |
2022 | } |
2023 | ||
ac145307 BS |
2024 | /* We need dynamic symbols for every section, since segments can |
2025 | relocate independently. */ | |
2026 | static bfd_boolean | |
2027 | elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2028 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2029 | asection *p) | |
2030 | { | |
2031 | switch (elf_section_data (p)->this_hdr.sh_type) | |
2032 | { | |
2033 | case SHT_PROGBITS: | |
2034 | case SHT_NOBITS: | |
2035 | /* If sh_type is yet undecided, assume it could be | |
2036 | SHT_PROGBITS/SHT_NOBITS. */ | |
2037 | case SHT_NULL: | |
2038 | return FALSE; | |
2039 | ||
2040 | /* There shouldn't be section relative relocations | |
2041 | against any other section. */ | |
2042 | default: | |
2043 | return TRUE; | |
2044 | } | |
2045 | } | |
2046 | ||
40b36596 JM |
2047 | static bfd_boolean |
2048 | elf32_tic6x_relocate_section (bfd *output_bfd, | |
2049 | struct bfd_link_info *info, | |
2050 | bfd *input_bfd, | |
2051 | asection *input_section, | |
2052 | bfd_byte *contents, | |
2053 | Elf_Internal_Rela *relocs, | |
2054 | Elf_Internal_Sym *local_syms, | |
2055 | asection **local_sections) | |
2056 | { | |
ac145307 | 2057 | struct elf32_tic6x_link_hash_table *htab; |
40b36596 JM |
2058 | Elf_Internal_Shdr *symtab_hdr; |
2059 | struct elf_link_hash_entry **sym_hashes; | |
ac145307 | 2060 | bfd_vma *local_got_offsets; |
40b36596 JM |
2061 | Elf_Internal_Rela *rel; |
2062 | Elf_Internal_Rela *relend; | |
2063 | bfd_boolean ok = TRUE; | |
2064 | ||
ac145307 | 2065 | htab = elf32_tic6x_hash_table (info); |
40b36596 JM |
2066 | symtab_hdr = & elf_symtab_hdr (input_bfd); |
2067 | sym_hashes = elf_sym_hashes (input_bfd); | |
ac145307 | 2068 | local_got_offsets = elf_local_got_offsets (input_bfd); |
40b36596 JM |
2069 | |
2070 | relend = relocs + input_section->reloc_count; | |
2071 | ||
2072 | for (rel = relocs; rel < relend; rel ++) | |
2073 | { | |
2074 | int r_type; | |
2075 | unsigned long r_symndx; | |
2076 | arelent bfd_reloc; | |
2077 | reloc_howto_type *howto; | |
2078 | Elf_Internal_Sym *sym; | |
2079 | asection *sec; | |
2080 | struct elf_link_hash_entry *h; | |
ac145307 | 2081 | bfd_vma off, relocation; |
40b36596 JM |
2082 | bfd_boolean unresolved_reloc; |
2083 | bfd_reloc_status_type r; | |
2084 | struct bfd_link_hash_entry *sbh; | |
41820509 | 2085 | bfd_boolean is_rel; |
40b36596 JM |
2086 | |
2087 | r_type = ELF32_R_TYPE (rel->r_info); | |
2088 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2089 | ||
41820509 JM |
2090 | is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section, |
2091 | relocs, rel); | |
2092 | ||
2093 | if (is_rel) | |
2094 | elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel); | |
2095 | else | |
2096 | elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel); | |
40b36596 JM |
2097 | howto = bfd_reloc.howto; |
2098 | if (howto == NULL) | |
2099 | { | |
2100 | bfd_set_error (bfd_error_bad_value); | |
2101 | return FALSE; | |
2102 | } | |
2103 | ||
2104 | h = NULL; | |
2105 | sym = NULL; | |
2106 | sec = NULL; | |
2107 | unresolved_reloc = FALSE; | |
2108 | ||
2109 | if (r_symndx < symtab_hdr->sh_info) | |
2110 | { | |
2111 | sym = local_syms + r_symndx; | |
2112 | sec = local_sections[r_symndx]; | |
2113 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
2114 | } | |
2115 | else | |
2116 | { | |
2117 | bfd_boolean warned; | |
2118 | ||
2119 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
2120 | r_symndx, symtab_hdr, sym_hashes, | |
2121 | h, sec, relocation, | |
2122 | unresolved_reloc, warned); | |
2123 | } | |
2124 | ||
2125 | if (sec != NULL && elf_discarded_section (sec)) | |
e4067dbb DJ |
2126 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
2127 | rel, relend, howto, contents); | |
40b36596 JM |
2128 | |
2129 | if (info->relocatable) | |
41820509 JM |
2130 | { |
2131 | if (is_rel | |
2132 | && sym != NULL | |
2133 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
2134 | { | |
2135 | rel->r_addend = 0; | |
2136 | relocation = sec->output_offset + sym->st_value; | |
2137 | r = _bfd_relocate_contents (howto, input_bfd, relocation, | |
2138 | contents + rel->r_offset); | |
2139 | goto done_reloc; | |
2140 | } | |
2141 | continue; | |
2142 | } | |
40b36596 JM |
2143 | |
2144 | switch (r_type) | |
2145 | { | |
2146 | case R_C6000_NONE: | |
2147 | case R_C6000_ALIGN: | |
2148 | case R_C6000_FPHEAD: | |
2149 | case R_C6000_NOCMP: | |
2150 | /* No action needed. */ | |
2151 | continue; | |
2152 | ||
2153 | case R_C6000_PCR_S21: | |
ac145307 BS |
2154 | /* A branch to an undefined weak symbol is turned into a |
2155 | "b .s2 B3" instruction if the existing insn is of the | |
2156 | form "b .s2 symbol". */ | |
2157 | if (h ? h->root.type == bfd_link_hash_undefweak | |
2158 | && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1) | |
2159 | : r_symndx != STN_UNDEF && bfd_is_und_section (sec)) | |
2160 | { | |
2161 | unsigned long oldval; | |
2162 | oldval = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
2163 | ||
2164 | if ((oldval & 0x7e) == 0x12) | |
2165 | { | |
2166 | oldval &= 0xF0000001; | |
2167 | bfd_put_32 (input_bfd, oldval | 0x000c0362, | |
2168 | contents + rel->r_offset); | |
2169 | r = bfd_reloc_ok; | |
2170 | goto done_reloc; | |
2171 | } | |
2172 | } | |
2173 | ||
40b36596 JM |
2174 | case R_C6000_PCR_S12: |
2175 | case R_C6000_PCR_S10: | |
2176 | case R_C6000_PCR_S7: | |
ac145307 BS |
2177 | if (h != NULL |
2178 | && h->plt.offset != (bfd_vma) -1 | |
2179 | && htab->elf.splt != NULL) | |
2180 | { | |
2181 | relocation = (htab->elf.splt->output_section->vma | |
2182 | + htab->elf.splt->output_offset | |
2183 | + h->plt.offset); | |
2184 | } | |
2185 | ||
40b36596 JM |
2186 | /* Generic PC-relative handling produces a value relative to |
2187 | the exact location of the relocation. Adjust it to be | |
2188 | relative to the start of the fetch packet instead. */ | |
2189 | relocation += (input_section->output_section->vma | |
2190 | + input_section->output_offset | |
2191 | + rel->r_offset) & 0x1f; | |
ac145307 BS |
2192 | unresolved_reloc = FALSE; |
2193 | break; | |
2194 | ||
2195 | case R_C6000_DSBT_INDEX: | |
2196 | relocation = elf32_tic6x_hash_table (info)->params.dsbt_index; | |
2197 | if (!info->shared || relocation != 0) | |
2198 | break; | |
2199 | ||
2200 | /* fall through */ | |
40b36596 JM |
2201 | case R_C6000_ABS32: |
2202 | case R_C6000_ABS16: | |
2203 | case R_C6000_ABS8: | |
2204 | case R_C6000_ABS_S16: | |
2205 | case R_C6000_ABS_L16: | |
2206 | case R_C6000_ABS_H16: | |
ac145307 BS |
2207 | /* When generating a shared object or relocatable executable, these |
2208 | relocations are copied into the output file to be resolved at | |
2209 | run time. */ | |
2210 | if ((info->shared || elf32_tic6x_using_dsbt (output_bfd)) | |
2211 | && (input_section->flags & SEC_ALLOC) | |
2212 | && (h == NULL | |
2213 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2214 | || h->root.type != bfd_link_hash_undefweak)) | |
2215 | { | |
2216 | Elf_Internal_Rela outrel; | |
2217 | bfd_boolean skip, relocate; | |
2218 | asection *sreloc; | |
2219 | ||
2220 | unresolved_reloc = FALSE; | |
2221 | ||
2222 | sreloc = elf_section_data (input_section)->sreloc; | |
2223 | BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL); | |
2224 | ||
2225 | skip = FALSE; | |
2226 | relocate = FALSE; | |
2227 | ||
2228 | outrel.r_offset = | |
2229 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2230 | rel->r_offset); | |
2231 | if (outrel.r_offset == (bfd_vma) -1) | |
2232 | skip = TRUE; | |
2233 | else if (outrel.r_offset == (bfd_vma) -2) | |
2234 | skip = TRUE, relocate = TRUE; | |
2235 | outrel.r_offset += (input_section->output_section->vma | |
2236 | + input_section->output_offset); | |
2237 | ||
2238 | if (skip) | |
2239 | memset (&outrel, 0, sizeof outrel); | |
2240 | else if (h != NULL | |
2241 | && h->dynindx != -1 | |
2242 | && (!info->shared | |
2243 | || !info->symbolic | |
2244 | || !h->def_regular)) | |
2245 | { | |
2246 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
2247 | outrel.r_addend = rel->r_addend; | |
2248 | } | |
2249 | else | |
2250 | { | |
2251 | long indx; | |
2252 | ||
2253 | outrel.r_addend = relocation + rel->r_addend; | |
2254 | ||
2255 | if (bfd_is_abs_section (sec)) | |
2256 | indx = 0; | |
2257 | else if (sec == NULL || sec->owner == NULL) | |
2258 | { | |
2259 | bfd_set_error (bfd_error_bad_value); | |
2260 | return FALSE; | |
2261 | } | |
2262 | else | |
2263 | { | |
2264 | asection *osec; | |
2265 | ||
2266 | osec = sec->output_section; | |
2267 | indx = elf_section_data (osec)->dynindx; | |
2268 | outrel.r_addend -= osec->vma; | |
2269 | BFD_ASSERT (indx != 0); | |
2270 | } | |
2271 | ||
2272 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
2273 | } | |
2274 | ||
2275 | elf32_tic6x_install_rela (output_bfd, sreloc, &outrel); | |
2276 | ||
2277 | /* If this reloc is against an external symbol, we do not want to | |
2278 | fiddle with the addend. Otherwise, we need to include the symbol | |
2279 | value so that it becomes an addend for the dynamic reloc. */ | |
2280 | if (! relocate) | |
2281 | continue; | |
2282 | } | |
2283 | ||
40b36596 JM |
2284 | /* Generic logic OK. */ |
2285 | break; | |
2286 | ||
2287 | case R_C6000_SBR_U15_B: | |
2288 | case R_C6000_SBR_U15_H: | |
2289 | case R_C6000_SBR_U15_W: | |
2290 | case R_C6000_SBR_S16: | |
2291 | case R_C6000_SBR_L16_B: | |
2292 | case R_C6000_SBR_L16_H: | |
2293 | case R_C6000_SBR_L16_W: | |
2294 | case R_C6000_SBR_H16_B: | |
2295 | case R_C6000_SBR_H16_H: | |
2296 | case R_C6000_SBR_H16_W: | |
2297 | sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE", | |
2298 | FALSE, FALSE, TRUE); | |
2299 | if (sbh != NULL | |
2300 | && (sbh->type == bfd_link_hash_defined | |
2301 | || sbh->type == bfd_link_hash_defweak)) | |
ac145307 BS |
2302 | { |
2303 | if (h ? (h->root.type == bfd_link_hash_undefweak | |
2304 | && (htab->elf.splt == NULL | |
2305 | || h->plt.offset == (bfd_vma) -1)) | |
2306 | : r_symndx != STN_UNDEF && bfd_is_und_section (sec)) | |
2307 | relocation = 0; | |
2308 | else | |
2309 | relocation -= (sbh->u.def.value | |
2310 | + sbh->u.def.section->output_section->vma | |
2311 | + sbh->u.def.section->output_offset); | |
2312 | } | |
40b36596 JM |
2313 | else |
2314 | { | |
2315 | (*_bfd_error_handler) (_("%B: SB-relative relocation but " | |
2316 | "__c6xabi_DSBT_BASE not defined"), | |
2317 | input_bfd); | |
2318 | ok = FALSE; | |
2319 | continue; | |
2320 | } | |
2321 | break; | |
2322 | ||
2323 | case R_C6000_SBR_GOT_U15_W: | |
2324 | case R_C6000_SBR_GOT_L16_W: | |
2325 | case R_C6000_SBR_GOT_H16_W: | |
ac145307 BS |
2326 | /* Relocation is to the entry for this symbol in the global |
2327 | offset table. */ | |
2328 | if (htab->elf.sgot == NULL) | |
2329 | abort (); | |
2330 | ||
2331 | if (h != NULL) | |
2332 | { | |
2333 | bfd_boolean dyn; | |
2334 | ||
2335 | off = h->got.offset; | |
2336 | dyn = htab->elf.dynamic_sections_created; | |
2337 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) | |
2338 | || (info->shared | |
2339 | && SYMBOL_REFERENCES_LOCAL (info, h)) | |
2340 | || (ELF_ST_VISIBILITY (h->other) | |
2341 | && h->root.type == bfd_link_hash_undefweak)) | |
2342 | { | |
2343 | /* This is actually a static link, or it is a | |
2344 | -Bsymbolic link and the symbol is defined | |
2345 | locally, or the symbol was forced to be local | |
2346 | because of a version file. We must initialize | |
2347 | this entry in the global offset table. Since the | |
2348 | offset must always be a multiple of 4, we use the | |
2349 | least significant bit to record whether we have | |
2350 | initialized it already. | |
2351 | ||
2352 | When doing a dynamic link, we create a .rel.got | |
2353 | relocation entry to initialize the value. This | |
2354 | is done in the finish_dynamic_symbol routine. */ | |
2355 | if ((off & 1) != 0) | |
2356 | off &= ~1; | |
2357 | else | |
2358 | { | |
2359 | bfd_put_32 (output_bfd, relocation, | |
2360 | htab->elf.sgot->contents + off); | |
2361 | h->got.offset |= 1; | |
2362 | ||
2363 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, | |
2364 | h) | |
2365 | && !(ELF_ST_VISIBILITY (h->other) | |
2366 | && h->root.type == bfd_link_hash_undefweak)) | |
2367 | elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, | |
2368 | off); | |
2369 | } | |
2370 | } | |
2371 | else | |
2372 | unresolved_reloc = FALSE; | |
2373 | } | |
2374 | else | |
2375 | { | |
2376 | if (local_got_offsets == NULL) | |
2377 | abort (); | |
2378 | ||
2379 | off = local_got_offsets[r_symndx]; | |
2380 | ||
2381 | /* The offset must always be a multiple of 4. We use | |
2382 | the least significant bit to record whether we have | |
2383 | already generated the necessary reloc. */ | |
2384 | if ((off & 1) != 0) | |
2385 | off &= ~1; | |
2386 | else | |
2387 | { | |
2388 | bfd_put_32 (output_bfd, relocation, | |
2389 | htab->elf.sgot->contents + off); | |
2390 | ||
2391 | if (info->shared || elf32_tic6x_using_dsbt (output_bfd)) | |
2392 | elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off); | |
2393 | ||
2394 | local_got_offsets[r_symndx] |= 1; | |
2395 | } | |
2396 | } | |
2397 | ||
2398 | if (off >= (bfd_vma) -2) | |
2399 | abort (); | |
2400 | ||
2401 | if (htab->dsbt) | |
2402 | relocation = (htab->elf.sgot->output_section->vma | |
2403 | + htab->elf.sgot->output_offset + off | |
2404 | - htab->dsbt->output_section->vma | |
2405 | - htab->dsbt->output_offset); | |
2406 | else | |
2407 | relocation = (htab->elf.sgot->output_section->vma | |
2408 | + htab->elf.sgot->output_offset + off | |
2409 | - htab->elf.sgotplt->output_section->vma | |
2410 | - htab->elf.sgotplt->output_offset); | |
2411 | ||
2412 | if (rel->r_addend != 0) | |
2413 | { | |
2414 | /* We can't do anything for a relocation which is against | |
2415 | a symbol *plus offset*. GOT holds relocations for | |
2416 | symbols. Make this an error; the compiler isn't | |
2417 | allowed to pass us these kinds of things. */ | |
2418 | if (h == NULL) | |
2419 | (*_bfd_error_handler) | |
2420 | (_("%B, section %A: relocation %s with non-zero addend %d" | |
2421 | " against local symbol"), | |
2422 | input_bfd, | |
2423 | input_section, | |
2424 | elf32_tic6x_howto_table[r_type].name, | |
2425 | rel->r_addend); | |
2426 | else | |
2427 | (*_bfd_error_handler) | |
2428 | (_("%B, section %A: relocation %s with non-zero addend %d" | |
2429 | " against symbol `%s'"), | |
2430 | input_bfd, | |
2431 | input_section, | |
2432 | elf32_tic6x_howto_table[r_type].name, | |
2433 | rel->r_addend, | |
2434 | h->root.root.string[0] != '\0' ? h->root.root.string | |
2435 | : _("[whose name is lost]")); | |
2436 | ||
2437 | bfd_set_error (bfd_error_bad_value); | |
2438 | return FALSE; | |
2439 | } | |
2440 | break; | |
2441 | ||
40b36596 JM |
2442 | case R_C6000_PREL31: |
2443 | /* Shared libraries and exception handling support not | |
2444 | implemented. */ | |
2445 | (*_bfd_error_handler) (_("%B: relocation type %d not implemented"), | |
2446 | input_bfd, r_type); | |
2447 | ok = FALSE; | |
2448 | continue; | |
2449 | ||
2450 | case R_C6000_COPY: | |
2451 | /* Invalid in relocatable object. */ | |
2452 | default: | |
2453 | /* Unknown relocation. */ | |
2454 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
2455 | input_bfd, r_type); | |
2456 | ok = FALSE; | |
2457 | continue; | |
2458 | } | |
2459 | ||
2460 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
2461 | contents, rel->r_offset, | |
2462 | relocation, rel->r_addend); | |
2463 | ||
41820509 | 2464 | done_reloc: |
40b36596 JM |
2465 | if (r == bfd_reloc_ok |
2466 | && howto->complain_on_overflow == complain_overflow_bitfield) | |
2467 | { | |
2468 | /* Generic overflow handling accepts cases the ABI says | |
2469 | should be rejected for R_C6000_ABS16 and | |
2470 | R_C6000_ABS8. */ | |
2471 | bfd_vma value = (relocation + rel->r_addend) & 0xffffffff; | |
2472 | bfd_vma sbit = 1 << (howto->bitsize - 1); | |
2473 | bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff; | |
2474 | bfd_vma value_sbits = value & sbits; | |
2475 | ||
2476 | if (value_sbits != 0 | |
2477 | && value_sbits != sbit | |
2478 | && value_sbits != sbits) | |
2479 | r = bfd_reloc_overflow; | |
2480 | } | |
2481 | ||
2482 | if (r != bfd_reloc_ok) | |
2483 | { | |
2484 | const char *name; | |
2485 | const char *error_message; | |
2486 | ||
2487 | if (h != NULL) | |
2488 | name = h->root.root.string; | |
2489 | else | |
2490 | { | |
2491 | name = bfd_elf_string_from_elf_section (input_bfd, | |
2492 | symtab_hdr->sh_link, | |
2493 | sym->st_name); | |
2494 | if (name == NULL) | |
2495 | return FALSE; | |
2496 | if (*name == '\0') | |
2497 | name = bfd_section_name (input_bfd, sec); | |
2498 | } | |
2499 | ||
2500 | switch (r) | |
2501 | { | |
2502 | case bfd_reloc_overflow: | |
2503 | /* If the overflowing reloc was to an undefined symbol, | |
2504 | we have already printed one error message and there | |
2505 | is no point complaining again. */ | |
2506 | if ((! h || | |
2507 | h->root.type != bfd_link_hash_undefined) | |
2508 | && (!((*info->callbacks->reloc_overflow) | |
2509 | (info, (h ? &h->root : NULL), name, howto->name, | |
2510 | (bfd_vma) 0, input_bfd, input_section, | |
2511 | rel->r_offset)))) | |
2512 | return FALSE; | |
2513 | break; | |
2514 | ||
2515 | case bfd_reloc_undefined: | |
2516 | if (!((*info->callbacks->undefined_symbol) | |
2517 | (info, name, input_bfd, input_section, | |
2518 | rel->r_offset, TRUE))) | |
2519 | return FALSE; | |
2520 | break; | |
2521 | ||
2522 | case bfd_reloc_outofrange: | |
2523 | error_message = _("out of range"); | |
2524 | goto common_error; | |
2525 | ||
2526 | case bfd_reloc_notsupported: | |
2527 | error_message = _("unsupported relocation"); | |
2528 | goto common_error; | |
2529 | ||
2530 | case bfd_reloc_dangerous: | |
2531 | error_message = _("dangerous relocation"); | |
2532 | goto common_error; | |
2533 | ||
2534 | default: | |
2535 | error_message = _("unknown error"); | |
2536 | /* Fall through. */ | |
2537 | ||
2538 | common_error: | |
2539 | BFD_ASSERT (error_message != NULL); | |
2540 | if (!((*info->callbacks->reloc_dangerous) | |
2541 | (info, error_message, input_bfd, input_section, | |
2542 | rel->r_offset))) | |
2543 | return FALSE; | |
2544 | break; | |
2545 | } | |
2546 | } | |
2547 | } | |
2548 | ||
2549 | return ok; | |
2550 | } | |
2551 | ||
ac145307 BS |
2552 | \f |
2553 | /* Look through the relocs for a section during the first phase, and | |
2554 | calculate needed space in the global offset table, procedure linkage | |
2555 | table, and dynamic reloc sections. */ | |
2556 | ||
2557 | static bfd_boolean | |
2558 | elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info, | |
2559 | asection *sec, const Elf_Internal_Rela *relocs) | |
2560 | { | |
2561 | struct elf32_tic6x_link_hash_table *htab; | |
2562 | Elf_Internal_Shdr *symtab_hdr; | |
2563 | struct elf_link_hash_entry **sym_hashes; | |
2564 | const Elf_Internal_Rela *rel; | |
2565 | const Elf_Internal_Rela *rel_end; | |
2566 | asection *sreloc; | |
2567 | ||
2568 | if (info->relocatable) | |
2569 | return TRUE; | |
2570 | ||
2571 | htab = elf32_tic6x_hash_table (info); | |
2572 | symtab_hdr = &elf_symtab_hdr (abfd); | |
2573 | sym_hashes = elf_sym_hashes (abfd); | |
2574 | ||
2575 | /* Create dynamic sections for relocatable executables so that we can | |
2576 | copy relocations. */ | |
2577 | if (elf32_tic6x_using_dsbt (abfd) | |
2578 | && ! htab->elf.dynamic_sections_created) | |
2579 | { | |
2580 | if (! _bfd_elf_link_create_dynamic_sections (abfd, info)) | |
2581 | return FALSE; | |
2582 | } | |
2583 | ||
2584 | sreloc = NULL; | |
2585 | ||
2586 | rel_end = relocs + sec->reloc_count; | |
2587 | for (rel = relocs; rel < rel_end; rel++) | |
2588 | { | |
2589 | unsigned int r_type; | |
2590 | unsigned long r_symndx; | |
2591 | struct elf_link_hash_entry *h; | |
2592 | Elf_Internal_Sym *isym; | |
2593 | ||
2594 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2595 | r_type = ELF32_R_TYPE (rel->r_info); | |
2596 | ||
2597 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
2598 | { | |
2599 | (*_bfd_error_handler) (_("%B: bad symbol index: %d"), | |
2600 | abfd, | |
2601 | r_symndx); | |
2602 | return FALSE; | |
2603 | } | |
2604 | ||
2605 | if (r_symndx < symtab_hdr->sh_info) | |
2606 | { | |
2607 | /* A local symbol. */ | |
2608 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
2609 | abfd, r_symndx); | |
2610 | if (isym == NULL) | |
2611 | return FALSE; | |
2612 | h = NULL; | |
2613 | } | |
2614 | else | |
2615 | { | |
2616 | isym = NULL; | |
2617 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
2618 | while (h->root.type == bfd_link_hash_indirect | |
2619 | || h->root.type == bfd_link_hash_warning) | |
2620 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2621 | } | |
2622 | ||
2623 | switch (r_type) | |
2624 | { | |
2625 | case R_C6000_PCR_S21: | |
2626 | /* This symbol requires a procedure linkage table entry. We | |
2627 | actually build the entry in adjust_dynamic_symbol, | |
2628 | because this might be a case of linking PIC code which is | |
2629 | never referenced by a dynamic object, in which case we | |
2630 | don't need to generate a procedure linkage table entry | |
2631 | after all. */ | |
2632 | ||
2633 | /* If this is a local symbol, we resolve it directly without | |
2634 | creating a procedure linkage table entry. */ | |
2635 | if (h == NULL) | |
2636 | continue; | |
2637 | ||
2638 | h->needs_plt = 1; | |
2639 | h->plt.refcount += 1; | |
2640 | break; | |
2641 | ||
2642 | case R_C6000_SBR_GOT_U15_W: | |
2643 | case R_C6000_SBR_GOT_L16_W: | |
2644 | case R_C6000_SBR_GOT_H16_W: | |
2645 | /* This symbol requires a global offset table entry. */ | |
2646 | if (h != NULL) | |
2647 | { | |
2648 | h->got.refcount += 1; | |
2649 | } | |
2650 | else | |
2651 | { | |
2652 | bfd_signed_vma *local_got_refcounts; | |
2653 | ||
2654 | /* This is a global offset table entry for a local symbol. */ | |
2655 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
2656 | if (local_got_refcounts == NULL) | |
2657 | { | |
2658 | bfd_size_type size; | |
2659 | ||
2660 | size = symtab_hdr->sh_info; | |
2661 | size *= (sizeof (bfd_signed_vma) | |
2662 | + sizeof (bfd_vma) + sizeof(char)); | |
2663 | local_got_refcounts = bfd_zalloc (abfd, size); | |
2664 | if (local_got_refcounts == NULL) | |
2665 | return FALSE; | |
2666 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
2667 | } | |
2668 | local_got_refcounts[r_symndx] += 1; | |
2669 | } | |
2670 | ||
2671 | if (htab->elf.sgot == NULL) | |
2672 | { | |
2673 | if (htab->elf.dynobj == NULL) | |
2674 | htab->elf.dynobj = abfd; | |
2675 | if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
2676 | return FALSE; | |
2677 | } | |
2678 | break; | |
2679 | ||
2680 | case R_C6000_DSBT_INDEX: | |
2681 | /* We'd like to check for nonzero dsbt_index here, but it's | |
2682 | set up only after check_relocs is called. Instead, we | |
2683 | store the number of R_C6000_DSBT_INDEX relocs in the | |
2684 | pc_count field, and potentially discard the extra space | |
2685 | in elf32_tic6x_allocate_dynrelocs. */ | |
2686 | if (!info->shared) | |
2687 | break; | |
2688 | ||
2689 | /* fall through */ | |
2690 | case R_C6000_ABS32: | |
2691 | case R_C6000_ABS16: | |
2692 | case R_C6000_ABS8: | |
2693 | case R_C6000_ABS_S16: | |
2694 | case R_C6000_ABS_L16: | |
2695 | case R_C6000_ABS_H16: | |
2696 | /* If we are creating a shared library, and this is a reloc | |
2697 | against a global symbol, or a non PC relative reloc | |
2698 | against a local symbol, then we need to copy the reloc | |
2699 | into the shared library. However, if we are linking with | |
2700 | -Bsymbolic, we do not need to copy a reloc against a | |
2701 | global symbol which is defined in an object we are | |
2702 | including in the link (i.e., DEF_REGULAR is set). At | |
2703 | this point we have not seen all the input files, so it is | |
2704 | possible that DEF_REGULAR is not set now but will be set | |
2705 | later (it is never cleared). In case of a weak definition, | |
2706 | DEF_REGULAR may be cleared later by a strong definition in | |
2707 | a shared library. We account for that possibility below by | |
2708 | storing information in the relocs_copied field of the hash | |
2709 | table entry. A similar situation occurs when creating | |
2710 | shared libraries and symbol visibility changes render the | |
2711 | symbol local. | |
2712 | ||
2713 | If on the other hand, we are creating an executable, we | |
2714 | may need to keep relocations for symbols satisfied by a | |
2715 | dynamic library if we manage to avoid copy relocs for the | |
2716 | symbol. */ | |
2717 | if ((info->shared || elf32_tic6x_using_dsbt (abfd)) | |
2718 | && (sec->flags & SEC_ALLOC) != 0) | |
2719 | { | |
2720 | struct elf_dyn_relocs *p; | |
2721 | struct elf_dyn_relocs **head; | |
2722 | ||
2723 | /* We must copy these reloc types into the output file. | |
2724 | Create a reloc section in dynobj and make room for | |
2725 | this reloc. */ | |
2726 | if (sreloc == NULL) | |
2727 | { | |
2728 | if (htab->elf.dynobj == NULL) | |
2729 | htab->elf.dynobj = abfd; | |
2730 | ||
2731 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
2732 | (sec, htab->elf.dynobj, 2, abfd, /*rela? */ TRUE); | |
2733 | ||
2734 | if (sreloc == NULL) | |
2735 | return FALSE; | |
2736 | } | |
2737 | ||
2738 | /* If this is a global symbol, we count the number of | |
2739 | relocations we need for this symbol. */ | |
2740 | if (h != NULL) | |
2741 | { | |
2742 | head = &((struct elf32_tic6x_link_hash_entry *) h)->dyn_relocs; | |
2743 | } | |
2744 | else | |
2745 | { | |
2746 | /* Track dynamic relocs needed for local syms too. | |
2747 | We really need local syms available to do this | |
2748 | easily. Oh well. */ | |
2749 | void **vpp; | |
2750 | asection *s; | |
2751 | ||
2752 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
2753 | if (s == NULL) | |
2754 | s = sec; | |
2755 | ||
2756 | vpp = &elf_section_data (s)->local_dynrel; | |
2757 | head = (struct elf_dyn_relocs **)vpp; | |
2758 | } | |
2759 | ||
2760 | p = *head; | |
2761 | if (p == NULL || p->sec != sec) | |
2762 | { | |
2763 | bfd_size_type amt = sizeof *p; | |
2764 | p = bfd_alloc (htab->elf.dynobj, amt); | |
2765 | if (p == NULL) | |
2766 | return FALSE; | |
2767 | p->next = *head; | |
2768 | *head = p; | |
2769 | p->sec = sec; | |
2770 | p->count = 0; | |
2771 | } | |
2772 | ||
2773 | p->count += 1; | |
2774 | if (r_type == R_C6000_DSBT_INDEX) | |
2775 | p->pc_count += 1; | |
2776 | } | |
2777 | break; | |
2778 | ||
2779 | case R_C6000_SBR_U15_B: | |
2780 | case R_C6000_SBR_U15_H: | |
2781 | case R_C6000_SBR_U15_W: | |
2782 | case R_C6000_SBR_S16: | |
2783 | case R_C6000_SBR_L16_B: | |
2784 | case R_C6000_SBR_L16_H: | |
2785 | case R_C6000_SBR_L16_W: | |
2786 | case R_C6000_SBR_H16_B: | |
2787 | case R_C6000_SBR_H16_H: | |
2788 | case R_C6000_SBR_H16_W: | |
2789 | if (h != NULL && info->executable) | |
2790 | { | |
2791 | /* For B14-relative addresses, we might need a copy | |
2792 | reloc. */ | |
2793 | h->non_got_ref = 1; | |
2794 | } | |
2795 | break; | |
2796 | ||
2797 | default: | |
2798 | break; | |
2799 | } | |
2800 | } | |
2801 | ||
2802 | return TRUE; | |
2803 | } | |
2804 | ||
2805 | static bfd_boolean | |
2806 | elf32_tic6x_add_symbol_hook (bfd *abfd, | |
2807 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2808 | Elf_Internal_Sym *sym, | |
2809 | const char **namep ATTRIBUTE_UNUSED, | |
2810 | flagword *flagsp ATTRIBUTE_UNUSED, | |
2811 | asection **secp, | |
2812 | bfd_vma *valp) | |
2813 | { | |
2814 | switch (sym->st_shndx) | |
2815 | { | |
2816 | case SHN_TIC6X_SCOMMON: | |
2817 | *secp = bfd_make_section_old_way (abfd, ".scommon"); | |
2818 | (*secp)->flags |= SEC_IS_COMMON; | |
2819 | *valp = sym->st_size; | |
2820 | bfd_set_section_alignment (abfd, *secp, bfd_log2 (sym->st_value)); | |
2821 | break; | |
2822 | } | |
2823 | ||
2824 | return TRUE; | |
2825 | } | |
2826 | ||
2827 | static void | |
2828 | elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym) | |
2829 | { | |
2830 | elf_symbol_type *elfsym; | |
2831 | ||
2832 | elfsym = (elf_symbol_type *) asym; | |
2833 | switch (elfsym->internal_elf_sym.st_shndx) | |
2834 | { | |
2835 | case SHN_TIC6X_SCOMMON: | |
2836 | if (tic6x_elf_scom_section.name == NULL) | |
2837 | { | |
2838 | /* Initialize the small common section. */ | |
2839 | tic6x_elf_scom_section.name = ".scommon"; | |
2840 | tic6x_elf_scom_section.flags = SEC_IS_COMMON; | |
2841 | tic6x_elf_scom_section.output_section = &tic6x_elf_scom_section; | |
2842 | tic6x_elf_scom_section.symbol = &tic6x_elf_scom_symbol; | |
2843 | tic6x_elf_scom_section.symbol_ptr_ptr = &tic6x_elf_scom_symbol_ptr; | |
2844 | tic6x_elf_scom_symbol.name = ".scommon"; | |
2845 | tic6x_elf_scom_symbol.flags = BSF_SECTION_SYM; | |
2846 | tic6x_elf_scom_symbol.section = &tic6x_elf_scom_section; | |
2847 | tic6x_elf_scom_symbol_ptr = &tic6x_elf_scom_symbol; | |
2848 | } | |
2849 | asym->section = &tic6x_elf_scom_section; | |
2850 | asym->value = elfsym->internal_elf_sym.st_size; | |
2851 | break; | |
2852 | } | |
2853 | } | |
2854 | ||
2855 | static int | |
2856 | elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2857 | const char *name ATTRIBUTE_UNUSED, | |
2858 | Elf_Internal_Sym *sym, | |
2859 | asection *input_sec, | |
2860 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
2861 | { | |
2862 | /* If we see a common symbol, which implies a relocatable link, then | |
2863 | if a symbol was small common in an input file, mark it as small | |
2864 | common in the output file. */ | |
2865 | if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0) | |
2866 | sym->st_shndx = SHN_TIC6X_SCOMMON; | |
2867 | ||
2868 | return 1; | |
2869 | } | |
2870 | ||
2871 | static bfd_boolean | |
2872 | elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, | |
2873 | asection *sec, | |
2874 | int *retval) | |
2875 | { | |
2876 | if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) | |
2877 | { | |
2878 | *retval = SHN_TIC6X_SCOMMON; | |
2879 | return TRUE; | |
2880 | } | |
2881 | ||
2882 | return FALSE; | |
2883 | } | |
2884 | ||
2885 | /* Allocate space in .plt, .got and associated reloc sections for | |
2886 | dynamic relocs. */ | |
2887 | ||
2888 | static bfd_boolean | |
2889 | elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) | |
2890 | { | |
2891 | struct bfd_link_info *info; | |
2892 | struct elf32_tic6x_link_hash_table *htab; | |
2893 | struct elf32_tic6x_link_hash_entry *eh; | |
2894 | struct elf_dyn_relocs *p; | |
2895 | ||
2896 | if (h->root.type == bfd_link_hash_indirect) | |
2897 | return TRUE; | |
2898 | ||
2899 | if (h->root.type == bfd_link_hash_warning) | |
2900 | /* When warning symbols are created, they **replace** the "real" | |
2901 | entry in the hash table, thus we never get to see the real | |
2902 | symbol in a hash traversal. So look at it now. */ | |
2903 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2904 | eh = (struct elf32_tic6x_link_hash_entry *) h; | |
2905 | ||
2906 | info = (struct bfd_link_info *) inf; | |
2907 | htab = elf32_tic6x_hash_table (info); | |
2908 | ||
2909 | if (htab->elf.dynamic_sections_created && h->plt.refcount > 0) | |
2910 | { | |
2911 | /* Make sure this symbol is output as a dynamic symbol. | |
2912 | Undefined weak syms won't yet be marked as dynamic. */ | |
2913 | if (h->dynindx == -1 && !h->forced_local) | |
2914 | { | |
2915 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2916 | return FALSE; | |
2917 | } | |
2918 | ||
2919 | if (info->shared | |
2920 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) | |
2921 | { | |
2922 | asection *s = htab->elf.splt; | |
2923 | ||
2924 | /* If this is the first .plt entry, make room for the special | |
2925 | first entry. */ | |
2926 | if (s->size == 0) | |
2927 | s->size += PLT_ENTRY_SIZE; | |
2928 | ||
2929 | h->plt.offset = s->size; | |
2930 | ||
2931 | /* If this symbol is not defined in a regular file, and we are | |
2932 | not generating a shared library, then set the symbol to this | |
2933 | location in the .plt. This is required to make function | |
2934 | pointers compare as equal between the normal executable and | |
2935 | the shared library. */ | |
2936 | if (! info->shared && !h->def_regular) | |
2937 | { | |
2938 | h->root.u.def.section = s; | |
2939 | h->root.u.def.value = h->plt.offset; | |
2940 | } | |
2941 | ||
2942 | /* Make room for this entry. */ | |
2943 | s->size += PLT_ENTRY_SIZE; | |
2944 | /* We also need to make an entry in the .got.plt section, which | |
2945 | will be placed in the .got section by the linker script. */ | |
2946 | htab->elf.sgotplt->size += 4; | |
2947 | /* We also need to make an entry in the .rel.plt section. */ | |
2948 | htab->elf.srelplt->size += sizeof (Elf32_External_Rela); | |
2949 | } | |
2950 | else | |
2951 | { | |
2952 | h->plt.offset = (bfd_vma) -1; | |
2953 | h->needs_plt = 0; | |
2954 | } | |
2955 | } | |
2956 | else | |
2957 | { | |
2958 | h->plt.offset = (bfd_vma) -1; | |
2959 | h->needs_plt = 0; | |
2960 | } | |
2961 | ||
2962 | if (h->got.refcount > 0) | |
2963 | { | |
2964 | asection *s; | |
2965 | ||
2966 | /* Make sure this symbol is output as a dynamic symbol. | |
2967 | Undefined weak syms won't yet be marked as dynamic. */ | |
2968 | if (h->dynindx == -1 | |
2969 | && !h->forced_local) | |
2970 | { | |
2971 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2972 | return FALSE; | |
2973 | } | |
2974 | ||
2975 | s = htab->elf.sgot; | |
2976 | h->got.offset = s->size; | |
2977 | s->size += 4; | |
2978 | ||
2979 | if (!(ELF_ST_VISIBILITY (h->other) | |
2980 | && h->root.type == bfd_link_hash_undefweak)) | |
2981 | htab->elf.srelgot->size += sizeof (Elf32_External_Rela); | |
2982 | } | |
2983 | else | |
2984 | h->got.offset = (bfd_vma) -1; | |
2985 | ||
2986 | if (eh->dyn_relocs == NULL) | |
2987 | return TRUE; | |
2988 | ||
2989 | /* Discard relocs on undefined weak syms with non-default | |
2990 | visibility. */ | |
2991 | if (info->shared || elf32_tic6x_using_dsbt (htab->obfd)) | |
2992 | { | |
2993 | /* We use the pc_count field to hold the number of | |
2994 | R_C6000_DSBT_INDEX relocs. */ | |
2995 | if (htab->params.dsbt_index != 0) | |
2996 | { | |
2997 | struct elf_dyn_relocs **pp; | |
2998 | ||
2999 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
3000 | { | |
3001 | p->count -= p->pc_count; | |
3002 | p->pc_count = 0; | |
3003 | if (p->count == 0) | |
3004 | *pp = p->next; | |
3005 | else | |
3006 | pp = &p->next; | |
3007 | } | |
3008 | } | |
3009 | ||
3010 | if (eh->dyn_relocs != NULL | |
3011 | && h->root.type == bfd_link_hash_undefweak) | |
3012 | { | |
3013 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
3014 | eh->dyn_relocs = NULL; | |
3015 | ||
3016 | /* Make sure undefined weak symbols are output as a dynamic | |
3017 | symbol in PIEs. */ | |
3018 | else if (h->dynindx == -1 | |
3019 | && !h->forced_local) | |
3020 | { | |
3021 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
3022 | return FALSE; | |
3023 | } | |
3024 | } | |
3025 | } | |
3026 | ||
3027 | /* Finally, allocate space. */ | |
3028 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
3029 | { | |
3030 | asection *sreloc; | |
3031 | ||
3032 | sreloc = elf_section_data (p->sec)->sreloc; | |
3033 | ||
3034 | BFD_ASSERT (sreloc != NULL); | |
3035 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
3036 | } | |
3037 | ||
3038 | return TRUE; | |
3039 | } | |
3040 | ||
3041 | /* Find any dynamic relocs that apply to read-only sections. */ | |
3042 | ||
3043 | static bfd_boolean | |
3044 | elf32_tic6x_readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) | |
3045 | { | |
3046 | struct elf32_tic6x_link_hash_entry *eh; | |
3047 | struct elf_dyn_relocs *p; | |
3048 | ||
3049 | if (h->root.type == bfd_link_hash_warning) | |
3050 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3051 | ||
3052 | eh = (struct elf32_tic6x_link_hash_entry *) h; | |
3053 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
3054 | { | |
3055 | asection *s = p->sec->output_section; | |
3056 | ||
3057 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
3058 | { | |
3059 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
3060 | ||
3061 | info->flags |= DF_TEXTREL; | |
3062 | ||
3063 | /* Not an error, just cut short the traversal. */ | |
3064 | return FALSE; | |
3065 | } | |
3066 | } | |
3067 | return TRUE; | |
3068 | } | |
3069 | ||
3070 | /* Set the sizes of the dynamic sections. */ | |
3071 | ||
3072 | static bfd_boolean | |
3073 | elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) | |
3074 | { | |
3075 | struct elf32_tic6x_link_hash_table *htab; | |
3076 | bfd *dynobj; | |
3077 | asection *s; | |
3078 | bfd_boolean relocs; | |
3079 | bfd *ibfd; | |
3080 | ||
3081 | htab = elf32_tic6x_hash_table (info); | |
3082 | dynobj = htab->elf.dynobj; | |
3083 | if (dynobj == NULL) | |
3084 | abort (); | |
3085 | ||
3086 | if (htab->elf.dynamic_sections_created) | |
3087 | { | |
3088 | /* Set the contents of the .interp section to the interpreter. */ | |
3089 | if (info->executable) | |
3090 | { | |
3091 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
3092 | if (s == NULL) | |
3093 | abort (); | |
3094 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
3095 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
3096 | } | |
3097 | } | |
3098 | ||
3099 | /* Set up .got offsets for local syms, and space for local dynamic | |
3100 | relocs. */ | |
3101 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
3102 | { | |
3103 | bfd_signed_vma *local_got; | |
3104 | bfd_signed_vma *end_local_got; | |
3105 | char *local_tls_type; | |
3106 | bfd_vma *local_tlsdesc_gotent; | |
3107 | bfd_size_type locsymcount; | |
3108 | Elf_Internal_Shdr *symtab_hdr; | |
3109 | asection *srel; | |
3110 | ||
3111 | for (s = ibfd->sections; s != NULL; s = s->next) | |
3112 | { | |
3113 | struct elf_dyn_relocs *p; | |
3114 | ||
3115 | for (p = ((struct elf_dyn_relocs *) | |
3116 | elf_section_data (s)->local_dynrel); | |
3117 | p != NULL; | |
3118 | p = p->next) | |
3119 | { | |
3120 | if (!bfd_is_abs_section (p->sec) | |
3121 | && bfd_is_abs_section (p->sec->output_section)) | |
3122 | { | |
3123 | /* Input section has been discarded, either because | |
3124 | it is a copy of a linkonce section or due to | |
3125 | linker script /DISCARD/, so we'll be discarding | |
3126 | the relocs too. */ | |
3127 | } | |
3128 | else if (p->count != 0) | |
3129 | { | |
3130 | srel = elf_section_data (p->sec)->sreloc; | |
3131 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
3132 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
3133 | info->flags |= DF_TEXTREL; | |
3134 | } | |
3135 | } | |
3136 | } | |
3137 | ||
3138 | local_got = elf_local_got_refcounts (ibfd); | |
3139 | if (!local_got) | |
3140 | continue; | |
3141 | ||
3142 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
3143 | locsymcount = symtab_hdr->sh_info; | |
3144 | end_local_got = local_got + locsymcount; | |
3145 | s = htab->elf.sgot; | |
3146 | srel = htab->elf.srelgot; | |
3147 | for (; local_got < end_local_got; | |
3148 | ++local_got, ++local_tls_type, ++local_tlsdesc_gotent) | |
3149 | { | |
3150 | if (*local_got > 0) | |
3151 | { | |
3152 | *local_got = s->size; | |
3153 | s->size += 4; | |
3154 | ||
3155 | if (info->shared || elf32_tic6x_using_dsbt (output_bfd)) | |
3156 | { | |
3157 | srel->size += sizeof (Elf32_External_Rela); | |
3158 | } | |
3159 | } | |
3160 | else | |
3161 | *local_got = (bfd_vma) -1; | |
3162 | } | |
3163 | } | |
3164 | ||
3165 | /* Allocate global sym .plt and .got entries, and space for global | |
3166 | sym dynamic relocs. */ | |
3167 | elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info); | |
3168 | ||
3169 | /* We now have determined the sizes of the various dynamic sections. | |
3170 | Allocate memory for them. */ | |
3171 | relocs = FALSE; | |
3172 | for (s = dynobj->sections; s != NULL; s = s->next) | |
3173 | { | |
3174 | bfd_boolean strip_section = TRUE; | |
3175 | ||
3176 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
3177 | continue; | |
3178 | ||
3179 | if (s == htab->dsbt) | |
3180 | s->size = 4 * htab->params.dsbt_size; | |
3181 | else if (s == htab->elf.splt | |
3182 | || s == htab->elf.sgot | |
3183 | || s == htab->elf.sgotplt | |
3184 | || s == htab->sdynbss) | |
3185 | { | |
3186 | /* Strip this section if we don't need it; see the | |
3187 | comment below. */ | |
3188 | /* We'd like to strip these sections if they aren't needed, but if | |
3189 | we've exported dynamic symbols from them we must leave them. | |
3190 | It's too late to tell BFD to get rid of the symbols. */ | |
3191 | ||
3192 | if (htab->elf.hplt != NULL) | |
3193 | strip_section = FALSE; | |
3194 | ||
3195 | /* Round up the size of the PLT section to a multiple of 32. */ | |
3196 | if (s == htab->elf.splt && s->size > 0) | |
3197 | s->size = (s->size + 31) & ~(bfd_vma)31; | |
3198 | } | |
3199 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) | |
3200 | { | |
3201 | if (s->size != 0 | |
3202 | && s != htab->elf.srelplt) | |
3203 | relocs = TRUE; | |
3204 | ||
3205 | /* We use the reloc_count field as a counter if we need | |
3206 | to copy relocs into the output file. */ | |
3207 | s->reloc_count = 0; | |
3208 | } | |
3209 | else | |
3210 | { | |
3211 | /* It's not one of our sections, so don't allocate space. */ | |
3212 | continue; | |
3213 | } | |
3214 | ||
3215 | if (s->size == 0) | |
3216 | { | |
3217 | /* If we don't need this section, strip it from the | |
3218 | output file. This is mostly to handle .rel.bss and | |
3219 | .rel.plt. We must create both sections in | |
3220 | create_dynamic_sections, because they must be created | |
3221 | before the linker maps input sections to output | |
3222 | sections. The linker does that before | |
3223 | adjust_dynamic_symbol is called, and it is that | |
3224 | function which decides whether anything needs to go | |
3225 | into these sections. */ | |
3226 | if (strip_section) | |
3227 | s->flags |= SEC_EXCLUDE; | |
3228 | continue; | |
3229 | } | |
3230 | ||
3231 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
3232 | continue; | |
3233 | ||
3234 | /* Allocate memory for the section contents. We use bfd_zalloc | |
3235 | here in case unused entries are not reclaimed before the | |
3236 | section's contents are written out. This should not happen, | |
3237 | but this way if it does, we get a R_C6000_NONE reloc instead | |
3238 | of garbage. */ | |
3239 | s->contents = bfd_zalloc (dynobj, s->size); | |
3240 | if (s->contents == NULL) | |
3241 | return FALSE; | |
3242 | } | |
3243 | ||
3244 | if (htab->elf.dynamic_sections_created) | |
3245 | { | |
3246 | /* Add some entries to the .dynamic section. We fill in the | |
3247 | values later, in elf32_tic6x_finish_dynamic_sections, but we | |
3248 | must add the entries now so that we get the correct size for | |
3249 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
3250 | dynamic linker and used by the debugger. */ | |
3251 | #define add_dynamic_entry(TAG, VAL) \ | |
3252 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
3253 | ||
3254 | if (info->executable) | |
3255 | { | |
3256 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
3257 | return FALSE; | |
3258 | } | |
3259 | ||
3260 | if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0) | |
3261 | || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size) | |
3262 | || !add_dynamic_entry (DT_C6000_DSBT_INDEX, | |
3263 | htab->params.dsbt_index)) | |
3264 | return FALSE; | |
3265 | ||
3266 | if (htab->elf.splt->size != 0) | |
3267 | { | |
3268 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
3269 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
3270 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
3271 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
3272 | return FALSE; | |
3273 | } | |
3274 | ||
3275 | if (relocs) | |
3276 | { | |
3277 | if (!add_dynamic_entry (DT_RELA, 0) | |
3278 | || !add_dynamic_entry (DT_RELASZ, 0) | |
3279 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
3280 | return FALSE; | |
3281 | ||
3282 | /* If any dynamic relocs apply to a read-only section, | |
3283 | then we need a DT_TEXTREL entry. */ | |
3284 | if ((info->flags & DF_TEXTREL) == 0) | |
3285 | elf_link_hash_traverse (&htab->elf, | |
3286 | elf32_tic6x_readonly_dynrelocs, info); | |
3287 | ||
3288 | if ((info->flags & DF_TEXTREL) != 0) | |
3289 | { | |
3290 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
3291 | return FALSE; | |
3292 | } | |
3293 | } | |
3294 | } | |
3295 | #undef add_dynamic_entry | |
3296 | ||
3297 | return TRUE; | |
3298 | } | |
3299 | ||
3300 | /* This function is called after all the input files have been read, | |
3301 | and the input sections have been assigned to output sections. */ | |
3302 | ||
3303 | static bfd_boolean | |
3304 | elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info) | |
3305 | { | |
3306 | if (elf32_tic6x_using_dsbt (output_bfd) && !info->relocatable) | |
3307 | { | |
3308 | struct elf_link_hash_entry *h; | |
3309 | ||
3310 | /* Force a PT_GNU_STACK segment to be created. */ | |
3311 | if (! elf_tdata (output_bfd)->stack_flags) | |
3312 | elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X; | |
3313 | ||
3314 | /* Define __stacksize if it's not defined yet. */ | |
3315 | h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize", | |
3316 | FALSE, FALSE, FALSE); | |
3317 | if (! h || h->root.type != bfd_link_hash_defined | |
3318 | || h->type != STT_OBJECT | |
3319 | || !h->def_regular) | |
3320 | { | |
3321 | struct bfd_link_hash_entry *bh = NULL; | |
3322 | ||
3323 | if (!(_bfd_generic_link_add_one_symbol | |
3324 | (info, output_bfd, "__stacksize", | |
3325 | BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE, | |
3326 | (const char *) NULL, FALSE, | |
3327 | get_elf_backend_data (output_bfd)->collect, &bh))) | |
3328 | return FALSE; | |
3329 | ||
3330 | h = (struct elf_link_hash_entry *) bh; | |
3331 | h->def_regular = 1; | |
3332 | h->type = STT_OBJECT; | |
3333 | } | |
3334 | } | |
3335 | return TRUE; | |
3336 | } | |
3337 | ||
3338 | static bfd_boolean | |
3339 | elf32_tic6x_modify_program_headers (bfd *output_bfd, | |
3340 | struct bfd_link_info *info) | |
3341 | { | |
3342 | struct elf_obj_tdata *tdata = elf_tdata (output_bfd); | |
3343 | struct elf_segment_map *m; | |
3344 | Elf_Internal_Phdr *p; | |
3345 | ||
3346 | /* objcopy and strip preserve what's already there using | |
3347 | elf32_tic6x_copy_private_bfd_data (). */ | |
3348 | if (! info) | |
3349 | return TRUE; | |
3350 | ||
3351 | for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++) | |
3352 | if (m->p_type == PT_GNU_STACK) | |
3353 | break; | |
3354 | ||
3355 | if (m) | |
3356 | { | |
3357 | struct elf_link_hash_entry *h; | |
3358 | ||
3359 | /* Obtain the pointer to the __stacksize symbol. */ | |
3360 | h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize", | |
3361 | FALSE, FALSE, FALSE); | |
3362 | if (h) | |
3363 | { | |
3364 | while (h->root.type == bfd_link_hash_indirect | |
3365 | || h->root.type == bfd_link_hash_warning) | |
3366 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3367 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
3368 | } | |
3369 | ||
3370 | /* Set the header p_memsz from the symbol value. We | |
3371 | intentionally ignore the symbol section. */ | |
3372 | if (h && h->root.type == bfd_link_hash_defined) | |
3373 | p->p_memsz = h->root.u.def.value; | |
3374 | else | |
3375 | p->p_memsz = DEFAULT_STACK_SIZE; | |
3376 | ||
3377 | p->p_align = 8; | |
3378 | } | |
3379 | ||
3380 | return TRUE; | |
3381 | } | |
3382 | ||
3383 | static bfd_boolean | |
3384 | elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
3385 | struct bfd_link_info *info) | |
3386 | { | |
3387 | struct elf32_tic6x_link_hash_table *htab; | |
3388 | bfd *dynobj; | |
3389 | asection *sdyn; | |
3390 | ||
3391 | htab = elf32_tic6x_hash_table (info); | |
3392 | dynobj = htab->elf.dynobj; | |
3393 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
3394 | ||
3395 | if (elf_hash_table (info)->dynamic_sections_created) | |
3396 | { | |
3397 | Elf32_External_Dyn * dyncon; | |
3398 | Elf32_External_Dyn * dynconend; | |
3399 | ||
3400 | BFD_ASSERT (sdyn != NULL); | |
3401 | ||
3402 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
3403 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
3404 | ||
3405 | for (; dyncon < dynconend; dyncon++) | |
3406 | { | |
3407 | Elf_Internal_Dyn dyn; | |
3408 | asection *s; | |
3409 | ||
3410 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
3411 | ||
3412 | switch (dyn.d_tag) | |
3413 | { | |
3414 | default: | |
3415 | break; | |
3416 | ||
3417 | case DT_C6000_DSBT_BASE: | |
3418 | s = htab->dsbt; | |
3419 | dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset); | |
3420 | break; | |
3421 | ||
3422 | case DT_PLTGOT: | |
3423 | s = htab->elf.sgotplt; | |
3424 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
3425 | break; | |
3426 | ||
3427 | case DT_JMPREL: | |
3428 | s = htab->elf.srelplt; | |
3429 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
3430 | break; | |
3431 | ||
3432 | case DT_PLTRELSZ: | |
3433 | s = htab->elf.srelplt; | |
3434 | dyn.d_un.d_val = s->size; | |
3435 | break; | |
3436 | } | |
3437 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3438 | } | |
3439 | ||
3440 | /* Fill in the first entry in the procedure linkage table. */ | |
3441 | if (htab->elf.splt && htab->elf.splt->size > 0) | |
3442 | { | |
3443 | bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma | |
3444 | + htab->elf.sgotplt->output_offset | |
3445 | - htab->dsbt->output_section->vma | |
3446 | - htab->dsbt->output_offset) / 4; | |
3447 | ||
3448 | /* ldw .D2T2 *+b14[$GOT(0)],b2 */ | |
3449 | bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e, | |
3450 | htab->elf.splt->contents); | |
3451 | /* ldw .D2T2 *+b14[$GOT(4)],b1 */ | |
3452 | bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e, | |
3453 | htab->elf.splt->contents + 4); | |
3454 | /* nop 3 */ | |
3455 | bfd_put_32 (output_bfd, 0x00004000, | |
3456 | htab->elf.splt->contents + 8); | |
3457 | /* b .s2 b2 */ | |
3458 | bfd_put_32 (output_bfd, 0x00080362, | |
3459 | htab->elf.splt->contents + 12); | |
3460 | /* nop 5 */ | |
3461 | bfd_put_32 (output_bfd, 0x00008000, | |
3462 | htab->elf.splt->contents + 16); | |
3463 | ||
3464 | elf_section_data (htab->elf.splt->output_section) | |
3465 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; | |
3466 | } | |
3467 | } | |
3468 | ||
3469 | return TRUE; | |
3470 | } | |
3471 | ||
3472 | /* Return address for Ith PLT stub in section PLT, for relocation REL | |
3473 | or (bfd_vma) -1 if it should not be included. */ | |
3474 | ||
3475 | static bfd_vma | |
3476 | elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt, | |
3477 | const arelent *rel ATTRIBUTE_UNUSED) | |
3478 | { | |
3479 | return plt->vma + (i + 1) * PLT_ENTRY_SIZE; | |
3480 | } | |
3481 | ||
3482 | static int | |
3483 | elf32_tic6x_obj_attrs_arg_type (int tag) | |
59e6276b | 3484 | { |
3cbd1c06 | 3485 | if (tag == Tag_ABI_compatibility) |
59e6276b | 3486 | return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL; |
87779176 JM |
3487 | else if (tag & 1) |
3488 | return ATTR_TYPE_FLAG_STR_VAL; | |
59e6276b | 3489 | else |
59e6276b JM |
3490 | return ATTR_TYPE_FLAG_INT_VAL; |
3491 | } | |
3492 | ||
87779176 JM |
3493 | static int |
3494 | elf32_tic6x_obj_attrs_order (int num) | |
3495 | { | |
3496 | if (num == LEAST_KNOWN_OBJ_ATTRIBUTE) | |
3497 | return Tag_ABI_conformance; | |
3498 | if ((num - 1) < Tag_ABI_conformance) | |
3499 | return num - 1; | |
3500 | return num; | |
3501 | } | |
3502 | ||
0547accf JM |
3503 | static bfd_boolean |
3504 | elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag) | |
3505 | { | |
3506 | if ((tag & 127) < 64) | |
3507 | { | |
3508 | _bfd_error_handler | |
3509 | (_("%B: error: unknown mandatory EABI object attribute %d"), | |
3510 | abfd, tag); | |
3511 | bfd_set_error (bfd_error_bad_value); | |
3512 | return FALSE; | |
3513 | } | |
3514 | else | |
3515 | { | |
3516 | _bfd_error_handler | |
3517 | (_("%B: warning: unknown EABI object attribute %d"), | |
3518 | abfd, tag); | |
3519 | return TRUE; | |
3520 | } | |
3521 | } | |
3522 | ||
75fa6dc1 | 3523 | /* Merge the Tag_ISA attribute values ARCH1 and ARCH2 |
59e6276b JM |
3524 | and return the merged value. At present, all merges succeed, so no |
3525 | return value for errors is defined. */ | |
3526 | ||
3527 | int | |
3528 | elf32_tic6x_merge_arch_attributes (int arch1, int arch2) | |
3529 | { | |
3530 | int min_arch, max_arch; | |
3531 | ||
3532 | min_arch = (arch1 < arch2 ? arch1 : arch2); | |
3533 | max_arch = (arch1 > arch2 ? arch1 : arch2); | |
3534 | ||
3535 | /* In most cases, the numerically greatest value is the correct | |
3536 | merged value, but merging C64 and C67 results in C674X. */ | |
75fa6dc1 JM |
3537 | if ((min_arch == C6XABI_Tag_ISA_C67X |
3538 | || min_arch == C6XABI_Tag_ISA_C67XP) | |
3539 | && (max_arch == C6XABI_Tag_ISA_C64X | |
3540 | || max_arch == C6XABI_Tag_ISA_C64XP)) | |
3541 | return C6XABI_Tag_ISA_C674X; | |
59e6276b JM |
3542 | |
3543 | return max_arch; | |
3544 | } | |
3545 | ||
87779176 JM |
3546 | /* Convert a Tag_ABI_array_object_alignment or |
3547 | Tag_ABI_array_object_align_expected tag value TAG to a | |
3548 | corresponding alignment value; return the alignment, or -1 for an | |
3549 | unknown tag value. */ | |
3550 | ||
3551 | static int | |
3552 | elf32_tic6x_tag_to_array_alignment (int tag) | |
3553 | { | |
3554 | switch (tag) | |
3555 | { | |
3556 | case 0: | |
3557 | return 8; | |
3558 | ||
3559 | case 1: | |
3560 | return 4; | |
3561 | ||
3562 | case 2: | |
3563 | return 16; | |
3564 | ||
3565 | default: | |
3566 | return -1; | |
3567 | } | |
3568 | } | |
3569 | ||
3570 | /* Convert a Tag_ABI_array_object_alignment or | |
3571 | Tag_ABI_array_object_align_expected alignment ALIGN to a | |
3572 | corresponding tag value; return the tag value. */ | |
3573 | ||
3574 | static int | |
3575 | elf32_tic6x_array_alignment_to_tag (int align) | |
3576 | { | |
3577 | switch (align) | |
3578 | { | |
3579 | case 8: | |
3580 | return 0; | |
3581 | ||
3582 | case 4: | |
3583 | return 1; | |
3584 | ||
3585 | case 16: | |
3586 | return 2; | |
3587 | ||
3588 | default: | |
3589 | abort (); | |
3590 | } | |
3591 | } | |
3592 | ||
59e6276b JM |
3593 | /* Merge attributes from IBFD and OBFD, returning TRUE if the merge |
3594 | succeeded, FALSE otherwise. */ | |
3595 | ||
3596 | static bfd_boolean | |
3597 | elf32_tic6x_merge_attributes (bfd *ibfd, bfd *obfd) | |
3598 | { | |
87779176 | 3599 | bfd_boolean result = TRUE; |
59e6276b JM |
3600 | obj_attribute *in_attr; |
3601 | obj_attribute *out_attr; | |
87779176 JM |
3602 | int i; |
3603 | int array_align_in, array_align_out, array_expect_in, array_expect_out; | |
59e6276b JM |
3604 | |
3605 | if (!elf_known_obj_attributes_proc (obfd)[0].i) | |
3606 | { | |
3607 | /* This is the first object. Copy the attributes. */ | |
3608 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
3609 | ||
3610 | out_attr = elf_known_obj_attributes_proc (obfd); | |
3611 | ||
3612 | /* Use the Tag_null value to indicate the attributes have been | |
3613 | initialized. */ | |
3614 | out_attr[0].i = 1; | |
3615 | ||
3616 | return TRUE; | |
3617 | } | |
3618 | ||
3619 | in_attr = elf_known_obj_attributes_proc (ibfd); | |
3620 | out_attr = elf_known_obj_attributes_proc (obfd); | |
3621 | ||
3622 | /* No specification yet for handling of unknown attributes, so just | |
3623 | ignore them and handle known ones. */ | |
59e6276b | 3624 | |
87779176 JM |
3625 | if (out_attr[Tag_ABI_stack_align_preserved].i |
3626 | < in_attr[Tag_ABI_stack_align_needed].i) | |
3627 | { | |
3628 | _bfd_error_handler | |
3629 | (_("error: %B requires more stack alignment than %B preserves"), | |
3630 | ibfd, obfd); | |
3631 | result = FALSE; | |
3632 | } | |
3633 | if (in_attr[Tag_ABI_stack_align_preserved].i | |
3634 | < out_attr[Tag_ABI_stack_align_needed].i) | |
3635 | { | |
3636 | _bfd_error_handler | |
3637 | (_("error: %B requires more stack alignment than %B preserves"), | |
3638 | obfd, ibfd); | |
3639 | result = FALSE; | |
3640 | } | |
3641 | ||
3642 | array_align_in = elf32_tic6x_tag_to_array_alignment | |
3643 | (in_attr[Tag_ABI_array_object_alignment].i); | |
3644 | if (array_align_in == -1) | |
3645 | { | |
3646 | _bfd_error_handler | |
3647 | (_("error: unknown Tag_ABI_array_object_alignment value in %B"), | |
3648 | ibfd); | |
3649 | result = FALSE; | |
3650 | } | |
3651 | array_align_out = elf32_tic6x_tag_to_array_alignment | |
3652 | (out_attr[Tag_ABI_array_object_alignment].i); | |
3653 | if (array_align_out == -1) | |
3654 | { | |
3655 | _bfd_error_handler | |
3656 | (_("error: unknown Tag_ABI_array_object_alignment value in %B"), | |
3657 | obfd); | |
3658 | result = FALSE; | |
3659 | } | |
3660 | array_expect_in = elf32_tic6x_tag_to_array_alignment | |
3661 | (in_attr[Tag_ABI_array_object_align_expected].i); | |
3662 | if (array_expect_in == -1) | |
3663 | { | |
3664 | _bfd_error_handler | |
3665 | (_("error: unknown Tag_ABI_array_object_align_expected value in %B"), | |
3666 | ibfd); | |
3667 | result = FALSE; | |
3668 | } | |
3669 | array_expect_out = elf32_tic6x_tag_to_array_alignment | |
3670 | (out_attr[Tag_ABI_array_object_align_expected].i); | |
3671 | if (array_expect_out == -1) | |
3672 | { | |
3673 | _bfd_error_handler | |
3674 | (_("error: unknown Tag_ABI_array_object_align_expected value in %B"), | |
3675 | obfd); | |
3676 | result = FALSE; | |
3677 | } | |
3678 | ||
3679 | if (array_align_out < array_expect_in) | |
3680 | { | |
3681 | _bfd_error_handler | |
3682 | (_("error: %B requires more array alignment than %B preserves"), | |
3683 | ibfd, obfd); | |
3684 | result = FALSE; | |
3685 | } | |
3686 | if (array_align_in < array_expect_out) | |
b5593623 JM |
3687 | { |
3688 | _bfd_error_handler | |
87779176 | 3689 | (_("error: %B requires more array alignment than %B preserves"), |
b5593623 | 3690 | obfd, ibfd); |
87779176 | 3691 | result = FALSE; |
b5593623 | 3692 | } |
87779176 JM |
3693 | |
3694 | for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++) | |
3695 | { | |
3696 | switch (i) | |
3697 | { | |
3698 | case Tag_ISA: | |
3699 | out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i, | |
3700 | out_attr[i].i); | |
3701 | break; | |
3702 | ||
3703 | case Tag_ABI_wchar_t: | |
3704 | if (out_attr[i].i == 0) | |
3705 | out_attr[i].i = in_attr[i].i; | |
3706 | if (out_attr[i].i != 0 | |
3707 | && in_attr[i].i != 0 | |
3708 | && out_attr[i].i != in_attr[i].i) | |
3709 | { | |
3710 | _bfd_error_handler | |
3711 | (_("warning: %B and %B differ in wchar_t size"), obfd, ibfd); | |
3712 | } | |
3713 | break; | |
3714 | ||
3715 | case Tag_ABI_stack_align_needed: | |
3716 | if (out_attr[i].i < in_attr[i].i) | |
3717 | out_attr[i].i = in_attr[i].i; | |
3718 | break; | |
3719 | ||
3720 | case Tag_ABI_stack_align_preserved: | |
3721 | if (out_attr[i].i > in_attr[i].i) | |
3722 | out_attr[i].i = in_attr[i].i; | |
3723 | break; | |
3724 | ||
3725 | case Tag_ABI_DSBT: | |
3726 | if (out_attr[i].i != in_attr[i].i) | |
3727 | { | |
3728 | _bfd_error_handler | |
3729 | (_("warning: %B and %B differ in whether code is " | |
3730 | "compiled for DSBT"), | |
3731 | obfd, ibfd); | |
3732 | } | |
3733 | break; | |
3734 | ||
3735 | case Tag_ABI_PID: | |
3736 | if (out_attr[i].i != in_attr[i].i) | |
3737 | { | |
3738 | _bfd_error_handler | |
3739 | (_("warning: %B and %B differ in position-dependence of " | |
3740 | "data addressing"), | |
3741 | obfd, ibfd); | |
3742 | } | |
3743 | break; | |
3744 | ||
3745 | case Tag_ABI_PIC: | |
3746 | if (out_attr[i].i != in_attr[i].i) | |
3747 | { | |
3748 | _bfd_error_handler | |
3749 | (_("warning: %B and %B differ in position-dependence of " | |
3750 | "code addressing"), | |
3751 | obfd, ibfd); | |
3752 | } | |
3753 | break; | |
3754 | ||
3755 | case Tag_ABI_array_object_alignment: | |
3756 | if (array_align_out != -1 | |
3757 | && array_align_in != -1 | |
3758 | && array_align_out > array_align_in) | |
3759 | out_attr[i].i | |
3760 | = elf32_tic6x_array_alignment_to_tag (array_align_in); | |
3761 | break; | |
3762 | ||
3763 | case Tag_ABI_array_object_align_expected: | |
3764 | if (array_expect_out != -1 | |
3765 | && array_expect_in != -1 | |
3766 | && array_expect_out < array_expect_in) | |
3767 | out_attr[i].i | |
3768 | = elf32_tic6x_array_alignment_to_tag (array_expect_in); | |
3769 | break; | |
3770 | ||
3771 | case Tag_ABI_conformance: | |
3772 | /* Merging for this attribute is not specified. As on ARM, | |
3773 | treat a missing attribute as no claim to conform and only | |
3774 | merge identical values. */ | |
3775 | if (out_attr[i].s == NULL | |
3776 | || in_attr[i].s == NULL | |
3777 | || strcmp (out_attr[i].s, | |
3778 | in_attr[i].s) != 0) | |
3779 | out_attr[i].s = NULL; | |
3780 | break; | |
3781 | ||
0547accf JM |
3782 | case Tag_ABI_compatibility: |
3783 | /* Merged in _bfd_elf_merge_object_attributes. */ | |
3784 | break; | |
3785 | ||
87779176 | 3786 | default: |
0547accf JM |
3787 | result |
3788 | = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i); | |
87779176 JM |
3789 | break; |
3790 | } | |
3791 | ||
3792 | if (in_attr[i].type && !out_attr[i].type) | |
3793 | out_attr[i].type = in_attr[i].type; | |
3794 | } | |
3795 | ||
3cbd1c06 JM |
3796 | /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */ |
3797 | if (!_bfd_elf_merge_object_attributes (ibfd, obfd)) | |
3798 | return FALSE; | |
59e6276b | 3799 | |
0547accf JM |
3800 | result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd); |
3801 | ||
87779176 | 3802 | return result; |
59e6276b JM |
3803 | } |
3804 | ||
3805 | static bfd_boolean | |
3806 | elf32_tic6x_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
3807 | { | |
3808 | if (!_bfd_generic_verify_endian_match (ibfd, obfd)) | |
3809 | return FALSE; | |
3810 | ||
3811 | if (!elf32_tic6x_merge_attributes (ibfd, obfd)) | |
3812 | return FALSE; | |
3813 | ||
3814 | return TRUE; | |
3815 | } | |
3816 | ||
ac145307 BS |
3817 | static bfd_boolean |
3818 | elf32_tic6x_copy_private_data (bfd * ibfd, bfd * obfd) | |
3819 | { | |
3820 | _bfd_elf_copy_private_bfd_data (ibfd, obfd); | |
3821 | ||
3822 | if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (obfd)) | |
3823 | return TRUE; | |
3824 | ||
3825 | /* Copy the stack size. */ | |
3826 | if (elf_tdata (ibfd)->phdr && elf_tdata (obfd)->phdr | |
3827 | && elf32_tic6x_using_dsbt (ibfd) && elf32_tic6x_using_dsbt (obfd)) | |
3828 | { | |
3829 | unsigned i; | |
3830 | ||
3831 | for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++) | |
3832 | if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK) | |
3833 | { | |
3834 | Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i]; | |
3835 | ||
3836 | for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++) | |
3837 | if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK) | |
3838 | { | |
3839 | memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr)); | |
3840 | ||
3841 | /* Rewrite the phdrs, since we're only called after they | |
3842 | were first written. */ | |
3843 | if (bfd_seek (obfd, | |
3844 | (bfd_signed_vma) get_elf_backend_data (obfd) | |
3845 | ->s->sizeof_ehdr, SEEK_SET) != 0 | |
3846 | || get_elf_backend_data (obfd)->s | |
3847 | ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr, | |
3848 | elf_elfheader (obfd)->e_phnum) != 0) | |
3849 | return FALSE; | |
3850 | break; | |
3851 | } | |
3852 | ||
3853 | break; | |
3854 | } | |
3855 | } | |
3856 | ||
3857 | return TRUE; | |
3858 | } | |
40b36596 JM |
3859 | |
3860 | #define TARGET_LITTLE_SYM bfd_elf32_tic6x_le_vec | |
3861 | #define TARGET_LITTLE_NAME "elf32-tic6x-le" | |
3862 | #define TARGET_BIG_SYM bfd_elf32_tic6x_be_vec | |
3863 | #define TARGET_BIG_NAME "elf32-tic6x-be" | |
3864 | #define ELF_ARCH bfd_arch_tic6x | |
ae95ffa6 | 3865 | #define ELF_TARGET_ID TIC6X_ELF_DATA |
40b36596 | 3866 | #define ELF_MACHINE_CODE EM_TI_C6000 |
ac145307 | 3867 | #define ELF_MAXPAGESIZE 0x1000 |
40b36596 JM |
3868 | #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup |
3869 | #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup | |
ac145307 | 3870 | #define bfd_elf32_bfd_copy_private_bfd_data elf32_tic6x_copy_private_data |
59e6276b | 3871 | #define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data |
41820509 | 3872 | #define bfd_elf32_mkobject elf32_tic6x_mkobject |
ac145307 BS |
3873 | #define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create |
3874 | #define bfd_elf32_bfd_link_hash_table_free elf32_tic6x_link_hash_table_free | |
41820509 | 3875 | #define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook |
40b36596 JM |
3876 | #define elf_backend_can_gc_sections 1 |
3877 | #define elf_backend_default_use_rela_p 1 | |
3878 | #define elf_backend_may_use_rel_p 1 | |
3879 | #define elf_backend_may_use_rela_p 1 | |
59e6276b | 3880 | #define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type |
0547accf | 3881 | #define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown |
87779176 | 3882 | #define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order |
75fa6dc1 | 3883 | #define elf_backend_obj_attrs_section ".c6xabi.attributes" |
59e6276b JM |
3884 | #define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES |
3885 | #define elf_backend_obj_attrs_vendor "c6xabi" | |
ac145307 BS |
3886 | #define elf_backend_can_refcount 1 |
3887 | #define elf_backend_want_got_plt 1 | |
3888 | #define elf_backend_want_dynbss 1 | |
3889 | #define elf_backend_plt_readonly 1 | |
40b36596 | 3890 | #define elf_backend_rela_normal 1 |
ac145307 BS |
3891 | #define elf_backend_got_header_size 8 |
3892 | #define elf_backend_gc_sweep_hook elf32_tic6x_gc_sweep_hook | |
3893 | #define elf_backend_modify_program_headers \ | |
3894 | elf32_tic6x_modify_program_headers | |
3895 | #define elf_backend_create_dynamic_sections \ | |
3896 | elf32_tic6x_create_dynamic_sections | |
3897 | #define elf_backend_adjust_dynamic_symbol \ | |
3898 | elf32_tic6x_adjust_dynamic_symbol | |
3899 | #define elf_backend_check_relocs elf32_tic6x_check_relocs | |
3900 | #define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook | |
3901 | #define elf_backend_symbol_processing elf32_tic6x_symbol_processing | |
3902 | #define elf_backend_link_output_symbol_hook \ | |
3903 | elf32_tic6x_link_output_symbol_hook | |
3904 | #define elf_backend_section_from_bfd_section \ | |
3905 | elf32_tic6x_section_from_bfd_section | |
40b36596 | 3906 | #define elf_backend_relocate_section elf32_tic6x_relocate_section |
ac145307 BS |
3907 | #define elf_backend_finish_dynamic_symbol \ |
3908 | elf32_tic6x_finish_dynamic_symbol | |
3909 | #define elf_backend_always_size_sections \ | |
3910 | elf32_tic6x_always_size_sections | |
3911 | #define elf_backend_size_dynamic_sections \ | |
3912 | elf32_tic6x_size_dynamic_sections | |
3913 | #define elf_backend_finish_dynamic_sections \ | |
3914 | elf32_tic6x_finish_dynamic_sections | |
40b36596 | 3915 | #define elf_info_to_howto elf32_tic6x_info_to_howto |
41820509 | 3916 | #define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel |
40b36596 | 3917 | |
ac145307 BS |
3918 | #undef elf_backend_omit_section_dynsym |
3919 | #define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym | |
3920 | #define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val | |
3921 | ||
3922 | ||
40b36596 | 3923 | #include "elf32-target.h" |